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HomeMy WebLinkAbout2019.10.31_CCO.p18_ChemoursUpdatedOnsiteOffsiteAssessment ON AND OFFSITE ASSESSMENT Chemours Fayetteville Works 34°50'32.32"N, 78°50'8.16"W Prepared for The Chemours Company FC, LLC 22828 NC Highway 87 Fayetteville, NC 28306 910-678-1315 Prepared by Geosyntec Consultants of NC, P.C. 2501 Blue Ridge Road, Suite 430 Raleigh, NC 27607 Geosyntec Project Number TR0795 Version 1: September 30, 2019 Version 2: October 31, 2019 TR0795 iii October 31, 2019 TABLE OF CONTENTS EXECUTIVE SUMMARY x 1. INTRODUCTION ....................................................................................................................1 1.1 Purpose of the Site Assessment Report ...................................................................................................... 1 1.2 Limitations and Assumptions..................................................................................................................... 2 2. SITE HISTORY AND DESCRIPTION ...................................................................................3 2.1 Site Location, Acreage, and Ownership ..................................................................................................... 3 2.2 Site Description .......................................................................................................................................... 3 2.3 Adjacent Property, Zoning, and Surrounding Land Uses .......................................................................... 3 2.4 Adjacent Surface Water Bodies and Classifications .................................................................................. 3 2.5 Meteorological Setting ............................................................................................................................... 4 2.6 Permitted Activities and Permitted Wastes ................................................................................................ 5 2.7 Assessment and Regulatory History .......................................................................................................... 5 3. REGIONAL GEOLOGY AND HYDROGEOLOGY .............................................................9 3.1 Regional Geology ...................................................................................................................................... 9 3.2 Regional Hydrogeology ............................................................................................................................. 9 4. PFAS PROPERTIES AND SOURCES..................................................................................11 4.1 Table 3+ PFAS Characteristics ................................................................................................................ 11 4.1.1 Empirical Parameters Testing .................................................................................................... 12 4.1.2 Laboratory Analytical Methods ................................................................................................. 12 4.2 PFAS Source Characteristics ................................................................................................................... 13 4.2.1 Emissions to Air ........................................................................................................................ 13 4.2.2 Releases of Process Water to Soil and Groundwater ................................................................. 13 4.2.3 Releases of Process Water to Surface Water ............................................................................. 14 4.2.4 Secondary Sources ..................................................................................................................... 15 5. RECEPTOR INFORMATION ...............................................................................................16 5.1 Summary of Receptor Survey Activities .................................................................................................. 16 5.2 Summary of Receptor Survey Findings ................................................................................................... 17 5.2.1 Wells and Wellhead Protection Areas ....................................................................................... 17 5.2.2 Surface Water Receptors ........................................................................................................... 17 5.2.3 Human Receptors and Human Health SLEA ............................................................................. 17 5.3 Ecological-SLEA ..................................................................................................................................... 18 5.4 Summary of Site Subsurface Structures ................................................................................................... 18 5.5 Mitigation Measures/Point of Use Treatment .......................................................................................... 19 6. ADDITIONAL CHARACTERIZATION ..............................................................................20 6.1 Onsite Black Creek Aquifer Characterization .......................................................................................... 20 6.1.1 Objectives .................................................................................................................................. 20 6.1.2 Geologic Mapping ..................................................................................................................... 21 TR0795 iv October 31, 2019 TABLE OF CONTENTS (continued) 6.1.3 Permeability and Electrical Conductivity Profiling ................................................................... 23 6.1.4 Installation of Paired Wells ....................................................................................................... 25 6.1.5 Slug testing LTW wells and select Black Creek Aquifer Wells ................................................ 26 6.2 River Temperature Assessment ............................................................................................................... 26 6.2.1 Objectives .................................................................................................................................. 26 6.2.2 Methods ..................................................................................................................................... 27 6.2.3 Results ....................................................................................................................................... 27 6.3 Additional Onsite Characterization .......................................................................................................... 27 6.3.1 Objectives .................................................................................................................................. 27 6.3.2 Methods ..................................................................................................................................... 28 6.3.3 Results ....................................................................................................................................... 28 6.4 Offsite Characterization ........................................................................................................................... 29 6.4.1 Objectives .................................................................................................................................. 29 6.4.2 Methods ..................................................................................................................................... 29 6.4.3 Results ....................................................................................................................................... 29 7. SOIL CHARACTERIZATION SUMMARY ........................................................................31 7.1 Lithology .................................................................................................................................................. 31 7.2 Background .............................................................................................................................................. 32 7.3 Analytical Methods .................................................................................................................................. 32 7.4 Results ...................................................................................................................................................... 32 7.4.1 Onsite Results ............................................................................................................................ 32 7.4.2 Offsite Analytical Results .......................................................................................................... 36 8. CAPE FEAR RIVER AND SEDIMENT CHARACTERIZATION SUMMARY ................37 8.1 Cape Fear River ....................................................................................................................................... 37 8.2 Cape Fear River Sediments ...................................................................................................................... 37 9. GROUNDWATER CHARACTERIZATION SUMMARY ..................................................38 9.1 Overview of Site Hydrogeology .............................................................................................................. 38 9.2 Onsite Groundwater ................................................................................................................................. 39 9.2.1 Hydrogeology ............................................................................................................................ 39 9.2.2 PFAS Concentrations ................................................................................................................ 41 9.3 Offsite Groundwater ................................................................................................................................ 45 10. SUMMARY OF CURRENT CONCEPTUAL SITE MODEL ..............................................48 10.1 Geology and Hydrogeology ..................................................................................................................... 48 10.2 Sources of PFAS and Distribution of PFAS ............................................................................................ 49 10.2.1 PFAS Signatures ........................................................................................................................ 50 10.2.2 Influence of Geology on Table 3+ PFAS Distributions in Groundwater ................................... 51 TR0795 v October 31, 2019 TABLE OF CONTENTS (continued) 10.3 PFAS Mass Loading to the Cape Fear River ........................................................................................... 52 10.4 Recommendations .................................................................................................................................... 53 11. CONCLUSIONS ....................................................................................................................55 12. REFERENCES .......................................................................................................................57 LIST OF TABLES Table 2-1: Soil and Groundwater Analytical Methods – PFAS Table 4-1: Classification of Table 3+ PFAS Table 5-1: Public /Community Water Supply Wells Table 6-1: Summary of Findings of Geologic Mapping Study Table 6-2: Black Creek Aquifer HPT/EC and Site Boring Locations Table 6-3: Well Construction Details Table 6-4: Summary of Estimated Hydraulic Conductivity Table 6-5: Survey of Temperature Differentials in Cape Fear River Table 7-1: Onsite Soil Characteristics Table 7-2: Onsite Soil Analytical Results Table 7-3: Onsite Soil Analytical Results – Quality Control Samples Table 7-4: Offsite Soil Characteristics Table 7-5: Offsite Soil Analytical Results Table 7-6: Offsite Soil Analytical Results – Quality Control Samples Table 9-1: Groundwater Elevations Table 9-2: Vertical Gradients Table 9-3: Onsite Groundwater Analytical Results Table 9-4: Offsite Groundwater Analytical Results Table 9-5: Select Monitoring Well Locations Showing Proposed PFAS Signatures Table 10-1: Comparison of Proposed PFAS Signatures to Selected Locations TR0795 vi October 31, 2019 LIST OF FIGURES Figure ES1: Schematic Conceptual Site Model of the Site including geological layers, and PFAS transport pathways Figure 2-1: Site Location Map Figure 2-2: Regional Topographic Map Figure 2-3: Site Topographic Map Figure 2-4: Cape Fear River Watershed and Downstream Drinking Water Intakes Figure 2-5: Wind Rose Measurements (January 2018- May 2019) Figure 3-1: Physiographic Provinces of North Carolina Figure 4-1: Historical Sources of PFAS Figure 4-2A: HFPO-DA Concentrations in Offsite Wells Figure 4-2B: HFPO-DA Concentrations in Offsite Groundwater Monitoring Wells Figure 5-1: Identified Well Receptor Locations Figure 5-2: Wellhead Protection Areas Figure 5-3: Surface Water Bodies in Region Around Site Figure 5-4: Identified Underground Structures Figure 6-1: Summary of Geologic Mapping Observations Figure 6-2: HPT and Well Locations Figure 6-3: Onsite Monitoring Well Network Figure 6-4: Cape Fear River Survey - Temperature Measurement Locations Figure 6-5: Temperature Gradient Results Figure 6-6: Offsite Monitoring Wells Figure 7-1: Selected PFAS Concentrations in Onsite Soil Figure 8-1: Cape Fear River Stage Variation Figure 9-1: Groundwater Elevation Map – Perched Zone October 2019 Figure 9-2: Groundwater Elevation Map – Surficial Aquifer October 2019 Figure 9-3: Groundwater Elevation Map – Black Creek Aquifer October 2019 Figure 9-4: Calculated Vertical Gradients Between Selected Stratigraphic Units Figure 9-5: Onsite PMPA Concentration in Groundwater Figure 9-6: Onsite PFMOAA Concentration in Groundwater Figure 9-7: Onsite HFPO-DA Concentration in Groundwater TR0795 vii October 31, 2019 LIST OF FIGURES (CONTINUED) Figure 9-8: Perched Zone Groundwater, Willis Creek, Seeps and Old Outfall 002 Total Table 3+ PFAS Concentrations Figure 9-9: Surficial Aquifer Groundwater, Willis Creek, Seeps and Old Outfall 002 Total Table 3+ PFAS Concentrations Figure 9-10: Black Creek Aquifer/Floodplain Deposits Groundwater, Willis Creek, Seeps and Old Outfall 002 Total Table 3+ PFAS Concentrations Figure 9-11: Onsite Spatial Distribution of Proposed PFAS Signatures Figure 9-12: Selected PFAS Concentrations in Offsite Groundwater Figure 10-1: Onsite Cross-Section Lines Figure 10-2: Cross-Section A-A’ Figure 10-3: Cross-Section B-B’ Figure 10-4: Cross-Section C-C’ Figure 10-5: Cross-Section D-D’ Figure 10-6: Cross-Section E-E’ Figure 10-7: Potential PFAS Pathways to the Cape Fear River from Site LIST OF APPENDICES Appendix A: Field Investigation Methods Appendix B: HPT Raw Data Appendix C: Interpreted HPT Logs Appendix D: Soil Boring Logs and Well Construction Logs Appendix E: Slug Test Data Appendix F: Well Permits and Certifications Appendix G: Data Review Narratives and Laboratory Reports Appendix H: Grain Size Analysis Appendix I: Historical Groundwater Data Appendix J: PFAS Signature Methods and Results TR0795 viii October 31, 2019 ACRONYMS AND ABBREVIATIONS °C celsius °F fahrenheit % percent Cu coefficient of uniformity Cc coefficient of curvature CAP Corrective Action Plan CFPUA Cape Fear Public Utility Authority CFRW Cape Fear River Watch CO Consent Order CSM conceptual site model DFSA Difluoro-sulfo-acetic acid DWR Division of Water Resources ft feet ft bgs feet below ground surface ft/day feet per day g/g grams per gram GPM gallons per minute GPS global positioning system HFPO-DA hexafluoropropylene oxide dimer HPT/EC Hydraulic Profiling Tool/Electrical Conductivity KOW Octanol-Water Partition Coefficient measurements km kilometers MGD millions of gallons per day MMF difluoromalonic acid mS/m milliSiemens per meter MTP perfluoro-2-methoxypropanoic acid NCAC North Carolina Administrative Code NCDENR North Carolina Department of Environment and Natural Resources NCDEQ North Carolina Department of Environmental Quality ng/kg nanograms per kilogram TR0795 ix October 31, 2019 ACRONYMS AND ABBREVIATIONS (CONTINUED) ng/L nanograms per liter NOAA National Ocean and Atmospheric Administration NPDES National Pollutant Discharge Elimination System NTU nephelometric turbidity units PFAS per- and polyfluoroalkyl substances PFESA-BP2 byproduct 2 PFMOAA perfluoro-2-methoxyaceticacid PFO2HxA perfluoro(3,5-dioxahexanoic) acid PFOA perfluorooctanoic acid PMPA perfluoromethoxypropyl carboxylic acid PPA Polymer Processing Acid ppb parts per billion PPF Acid perfluoropropionic acid PVF polyvinyl fluoride QA/QC Quality Assurance/Quality Control RCRA Resource Conservation and Recovery Act RFI RCRA Facility Investigation SA On and Offsite Assessment Report SLEA Offsite Screening Level Exposure Assessment USCS Unified Soil Classification System USGS United States Geological Survey WWTP wastewater treatment plant TR0795 x October 31, 2019 EXECUTIVE SUMMARY This report, the Site Assessment Report (SA), summarizes On and Offsite Assessment activities completed by Geosyntec Consultants and others at the Chemours Fayetteville Works facility (Site) pursuant to Paragraph 18 of the February 25, 2019 Consent Order (CO) among Chemours, the North Carolina Department of Environmental Quality (NCDEQ) and Cape Fear River Watch (CFRW). Paragraph 18 requires this assessment comply with the requirements of 2L rules for site assessments provided in paragraph (g) of Title 15A of the North Carolina Administrative Code (NCAC), Subchapter 2L (2L). These requirements include characterizing the following: • The source and cause of contamination; • Any imminent hazards to public health and safety and any actions taken to mitigate them; • All receptors and significant exposure pathways; • The horizontal and vertical extent of soil and groundwater contamination impact and significant factors affecting contaminant transport; and • Geological and hydrogeological features influencing the movement, chemical, and physical character of the contaminants. These requirements are addressed in this report. In addition to the requirements above, Paragraph 18 of the CO also requires the identification of groundwater seeps contributing to surface water contamination at the site and areas with significantly contaminated sediment. Observations related to the seeps identified were reported in the Seeps and Creeks Investigation Report and are described later in this report. An investigation to characterize sediment PFAS concentrations will be addressed as part of the Sediment Characterization Plan required by CO Paragraph 11.2 and submitted to NCDEQ on August 21, 2019. At time of this report’s submission, the Sediment Characterization Plan is still awaiting comment and approval by NCDEQ. Upon NCDEQ approval, Chemours will implement and then report the findings of the sediment characterization. ES.1. Source Information The Site property is 2,177 acres in size. The Site is bounded by NC Highway 87 to the west, the Cape Fear River to the east, and on the north and south by forested areas, farmland and private residences. The Site is an active manufacturing facility, including fluoroproducts, which has had direct releases of per and polyfluoroalkyl substances (PFAS) to air, soil, groundwater and surface water. Until 2015, the Site was owned and operated by DuPont, with a portion leased to and operated by Kuraray. Chemours has been the owner of the Site since July 2015 and has operated the Site since that time except for the portion operated by Kuraray and another portion retained and operated by DuPont. PFAS are a group of man-made carbon-based chemicals composed of a fully or partially fluorinated chain of carbon atoms (referred to as a “tail”) and a nonfluorinated, polar functional TR0795 xi October 31, 2019 group (referred to as a “head”) at one end of the carbon chain. Fluorination of the carbon chain renders it hydrophobic and lipophobic, while the polar head group is hydrophilic. The PFAS predominantly present at the Site are Table 3+ PFAS, presently a set of 20 PFAS which at the Site originate from a release from the manufacturing processes. These compounds are analyzed by a newly developed commercial analytical method Table 3+ SOP. The Table 3+ PFAS at Site are expected to be relatively mobile in the subsurface with some PFAS experiencing greater retardation in flow than others due to sorption processes. Onsite emissions to air and subsequent aerial deposition have resulted in a distributed, non-point secondary source of PFAS in onsite and offsite soils. Infiltrating rainfall has transported these PFAS downward to groundwater. The currently identified extent of this secondary PFAS source is shown in Figures 4-2A, 4-2B, and 9-12. Chemours is presently implementing Paragraph 21 of the CO which requires the extent of PFAS present in offsite private wells to be characterized by August 26, 2020. Onsite releases of PFAS to soil and groundwater occurred in the manufacturing areas. Known specific release pathways include: (i) leakage from historical process water sewers in the Chemours Monomers IXM Area, (ii) historical leakage from the terracotta pipe transmitting process water to the wastewater treatment plant (WWTP) and (iii) a manufacturing upset which occurred in October 2017. Each of these release pathways has been mitigated as discussed herein. ES.2. Initial abatement/emergency response information Chemours has taken actions to reduce emissions of Table 3+ PFAS to air, groundwater and surface water. Chemours has taken and is taking the following actions: • Diverted Monomers IXM process water discharge from reaching the WWTP and then the Cape Fear River, by sending it for offsite disposal reducing the yearly hexafluoropropylene oxide dimer acid (HFPO-DA) loading to the Cape Fear River by over 95 percent (%); • Implemented a series of air abatement measures, which to date have reduced HFPO- DA emissions to air by greater than 92% and will achieve substantial further reductions of PFAS emissions to air with the installation and operation of a Thermal Oxidizer, by December 31, 2019, which will destroy 99% of PFAS routed to it. • Providing replacement drinking water to offsite private well users with well water exceeding CO-defined Attachment C PFAS concentration criteria. Replacement water is first being supplied as bottled water to residents who qualify as an interim provision. Then more permanent replacement water that may be provided to residents based on the qualification criteria include (i) point of use reverse osmosis systems, (ii) whole house filtration systems, or (iii) connection to public water supplies. Chemours is continuing further actions to reduce PFAS mass loading to surface water. Specifically, in Chemours’ Cape Fear River PFAS Loading Reduction Plan, Chemours proposed the following actions to reduce such loading: TR0795 xii October 31, 2019 • Five actions to reduce the PFAS mass loading from present discharges at Outfall 002; • Capturing and treating the flow of Old Outfall 002; and • Capturing and treating seeping groundwater expressed above ground surface that reaches the Cape Fear River. The actions Chemours has proposed are estimated to yield a 50%+ reduction of Table 3+ PFAS loading to the Cape Fear River. As requested by NCDEQ, Chemours will present additional actions focused on groundwater in the Supplemental PFAS Loading Reductions Plan, due November 1, 2019. Further details will be presented in the Corrective Action Plan (the CAP) required by Consent Order paragraph 16, due December 31, 2019. ES.3. Receptor information According to Cumberland and Bladen County zoning maps, the Site is surrounded by areas that are zoned as residential, agricultural, conservation, industrial or commercial. The following sub- sections describe receptors identified in the proximity of the site. Note that as required in Paragraph 21 of the CO, the full extent of PFAS present in private well receptors is being delineated with the task to be completed by August 26, 2020. Receptors identified within six miles of the Site are shown in this report. Receptors included in this document are public and private supply wells, surface water bodies and intakes, and human and ecological receptors. As of September 2019, the full extent of PFAS in private wells surrounding the Site is not complete and sampling is ongoing to complete the delineation. ES.3.1. Water Supply Wells To date, 75 public/community wells and 926 private wells have been identified in the counties surrounding the Site. Community wells are those that serve more than one household. The full extent of offsite contamination is still being assessed, as such the number of identified private wells will increase. There is limited availability of drilling records including logs and installation depths for many private wells. ES.3.2. Public Water Intakes The Cape Fear River is a water source for communities downstream of the Site. Raw water intakes are located at Bladen Bluffs and Kings Bluff Intake Canal, located approximately 5 miles and 55 miles downstream from the Site. These intakes serve as Cape Fear River water intakes for the Lower Cape Fear Water and Sewer Authority, which in turn provides water to Cape Fear Public Utility Authority (CFPUA) and other water providers. ES.3.3. Surface Water Bodies Surface waters in the region surrounding the Site include the Cape Fear River, swamps and marshes, and several small streams, ponds, and ditches. To the east of the Site is the Cape Fear River. The Cape Fear River and its entire watershed are located in the state of North Carolina. To the north and south of the Site are two tributaries to the Cape Fear River Willis Creek and Georgia TR0795 xiii October 31, 2019 Branch Creek. Additionally, the Site is located on a bluff slope approximately 100 feet (ft) above the Cape Fear River. Along this bluff face are four groundwater seepage pathways where groundwater from the Site is expressed at surface and reaches the Cape Fear River. ES.3.4. Wellhead Protection Areas Wellhead protection areas, as defined in the Safe Drinking Water Act: 42 U.S. Code § 300h–7, surrounding the Site are identified in Figure 5-2. According to publicly available data, there is one wellhead protection area and three municipal water supply wells (PWS ID 03-78-030). Daily water extraction from these wells taken together ranges from 0.18 to 0.30 million of gallons per day (MGD). Further details available regarding these wells in the wellhead protection area is provided in Table 5-1. ES.3.5. Subsurface Structures A facility map showing subsurface utilities is provided as Figure 5-4. As noted above, direct releases of PFAS to Site soil and groundwater have been documented, some of which occurred through leaking underground piping. Efforts are underway to mitigate continued release of PFAS to groundwater from subsurface structures. Onsite subsurface structures could be pathways for these past point source releases. Offsite, PFAS impacts exist as a diffuse and distributed source and therefore migration through subsurface utilities is not applicable. ES.3.6. Human and Ecological Receptors At the Site, human activities are limited to facilities operations and maintenance, office workers, and environmental monitoring activities. In the area surrounding the Site, there is a wide range of human and land use activities, including private residences, farms, commercial businesses, and recreational areas. Current exposures to historically released PFAS for these activities are being evaluated through the Offsite Screening Level Exposure Assessment (SLEA) of Site Associated PFAS - Workplan. The SLEA is evaluating the following receptors: (i) residents, (ii) farmers, (iii) gardeners, (iv) off-site workers, and (v) recreational anglers, swimmers and canoeists. For the receptors identified above, the SLEA is evaluating a range of potential exposure pathways. An Ecological-SLEA is being performed to assess exposures to PFAS in the Cape Fear River adjacent to and downstream of the Site and the terrestrial habitat surrounding the Site. Environmental samples including samples of river water, river sediments, terrestrial plants, terrestrial invertebrates, surface soils and fish are being collected to evaluate these exposures. ES.4. Sampling/Investigation Results Since mid-2017 Chemours has collected stack test samples, water, and soil samples from on and off-site locations to develop a conceptual site model and guide the development of remedial actions that will reduce the PFAS reaching the Cape Fear River. TR0795 xiv October 31, 2019 ES.4.1. Nature and Extent of Contamination At present, the PFAS contamination is present both on and offsite. There are two primary pathways for PFAS contamination offsite – aerial deposition and discharge of water from existing Outfall 002, Old Outfall 002 and groundwater. Historical air emissions have resulted in off-site well PFAS impacts, in the primary wind direction, over six miles from the site. As specified in the CO paragraph 21, Chemours is to delineate by August 26, 2020 the extent of PFAS in private wells exceeding 10 nanograms per liter (ng/L) of any PFAS listed in Attachment C of the CO. As of September 2019, the full extent of PFAS in private wells surrounding the Site is not complete and sampling is ongoing. A PFAS Mass Loading Model was developed to assess the contribution of different transport pathways to overall mass loading of PFAS originating from the facility to the Cape Fear River. Ten pathways were identified as contributing to loading to the Cape Fear River. PFAS loading to the Cape Fear River was estimated using a combination of measured and estimated data to develop mass loading estimates by pathway. The model was then calibrated and evaluated against observed downstream river PFAS mass loadings. The mass loading model estimated that the Seeps and Old Outfall 002 (Transport Pathways 6 and 7 respectively) have the highest contribution of Table 3+ PFAS mass loading to the Cape Fear River. These two pathways (Transport Pathways 6 and 7) combined are estimated to contribute greater than 50% of the loading to the Cape Fear River. Onsite groundwater (Pathway 5) is the next highest mass loading pathway to the Cape Fear River with an estimated loading of approximately 20%. Mass Loading Model Total Table 3+ PFAS including HFPO-DA Contributions per Pathway Transport Pathway Total Table 3+ Estimated Loading Percentage per Pathway per Event May 2019 Event June 2019 Event [1] Upstream River Water and Groundwater 4% 15% [2] Willis Creek 10% 4% [3] Aerial Deposition on the River < 2% < 2% [4] Outfall 002 4% 7% [5] Onsite Groundwater 22% 17% [6] Seeps 32% 24% [7] Old Outfall 002 23% 29% [8] Offsite Adjacent and Downstream Groundwater < 2% < 2% [9] Georgia Branch Creek 4% 3% TR0795 xv October 31, 2019 For the Transport Pathways, the loading estimates will vary over time due to a range of potential factors, including but not limited to: • Detections of PFAS at or near analytical practical quantitation limits have more variability; • Elevated method reporting limits; • Uncertainty (often ± 20%) in analytical laboratory results; • Flow rate estimates in the river, seeps, groundwater and creeks are over- or under- predicted compared to actual flow rates. Geosyntec will be refining the mass loading model through upcoming quarterly sampling events and a numerical groundwater model to more quantitatively bound groundwater mass loading to the Cape Fear River. Development of Current Conceptual Site Model The geology at the Site consists of sands, silty sands and clays. The geology and land use at the Site have influenced the hydrogeology. The current site conceptual model is presented in Figure ES-1. The geology of the Site is depicted in a series of cross sections (See Figures 10-1 to 10-6). The geological features at Site from surface downward are as follows: 1. Perched Zone. The Perched Zone is a relatively thin, spatially limited layer of groundwater present in silty sands to a depth of about 20 ft bgs (Figures 10-2 to 10-6). Groundwater in the Perched Zone is recharged through precipitation onsite, and in the past, has received enhanced infiltration through unlined ditches and sedimentation ponds – these features have since been lined. Groundwater flows radially away from groundwater mound in the Perched Zone. This leads to groundwater discharge to the east at seeps on the edge of the bluff, to the south toward the Old Outfall 002 and to the north and to the west downwards through the geological sequence towards the Surficial and Black Creek Aquifers. 2. Perched Clay Unit. The Perched Clay Unit gives rise to the Perched Zone as it presents a barrier to direct downward groundwater infiltration. The Perched Clay is spatially limited at the Site. To the north it pinches out. To the east and south it outcrops along the bluff face. To the west it terminates and becomes absent (Figure10-6). In cross sections along the Site and in observations of grainsizes and lithologic contact elevations from the boring logs, an erosional feature in the western portion of the geology underlying the manufacturing areas is suggested. This erosional surface, described later in this list, is interpreted to have eroded the Perched Clay Unit enabling downward migration of groundwater off the western edge of the Perched Zone. 3. Surficial Aquifer. The Surficial Aquifer is an unconfined silty sand aquifer lying atop the Black Creek Confining Unit and is present beneath the Perched Clay Unit. Groundwater in the Surficial Aquifer flows towards the bluff faces at the Site – It flows both north, east and west toward surface water bodies (Willis Creek, Seeps, Old Outfall 002) and discharges into them as seeps. The Surficial Aquifer is interpreted to be in contact with the Black Creek Aquifer in places due to an erosional feature. This feature is labeled on the TR0795 xvi October 31, 2019 cross sections and is interpreted to have enabled downward cross formational groundwater flow. 4. Black Creek Confining Unit. The Black Creek Confining Unit is a layer of silty or sandy clay that separates the Surficial Aquifer from the Black Creek Aquifer. The lithologic contact elevation with the overlying Surficial Aquifer is variable, as is the unit thickness – the Black Creek Confining Unit is interpreted to have been eroded under the western portion of the manufacturing areas at Site. In addition to the Black Creek Confining unit being discontinuous, the potential for downward cross formational flow, also exists based on multiple vertical joints (i.e. fractures in the clay) observed in the Black Creek Confining Unit where it outcrops at the Site. 5. Flood Plain Deposits. Surface soils in the flood plain immediately adjacent to the Cape Fear River are comprised of finer grained, likely more recently deposited sediments during river flood stages. These deposits have lower hydraulic conductivity than the Surficial and Black Creek Aquifers. The seeps at the Site cut into Floodplain Deposits as they flow towards the Cape Fear River. 6. Black Creek Aquifer. The Black Creek Aquifer is comprised of fine to medium grained sands. The Black Creek Aquifer is in contact with the Surficial Aquifer under the western portion of the manufacturing area at the Site and then is separated from the Surficial Aquifer under most of the manufacturing area by the Black Creek confining unit. The Black Creek Aquifer directly adjacent to the Cape Fear River is overlain by Flood Plain Deposits and the Black Creek Confining Unit. The Black Creek Aquifer is interpreted to be the only transmissive groundwater zone at Site in contact with the Cape Fear River. Groundwater in the Black Creek Aquifer flows from west to east towards the Cape Fear River. 7. Upper Cape Fear Confining Unit. The Upper Cape Fear Confining Unit underlies the Black Creek Aquifer. The Upper Cape Fear Confining unit is regionally extensive clay layer which is upwards of 75 ft thick at Site and is likely a barrier to downwards groundwater flow. Groundwater levels in the Upper Cape Fear Aquifer measured at NC DWR wells are 80 ft lower than Black Creek Aquifer groundwater levels immediately above the Upper Cape Fear Aquifer. If the two units were in hydraulic connection, they would have similar groundwater elevations. The dissimilarity in water levels for these co-located NC DWR wells demonstrates how the Upper Cape Fear Confining Unit is a barrier to downward cross formational flow. 8. Erosional Feature. A paleo-era process appears to have eroded the Perched Clay Unit, portions of the Surficial Aquifer and the Black Creek Confining Unit in the geological sequence under the western portion of the manufacturing area. This erosional feature potentially enables cross formational flow of water from the Perched Zone, through the Surficial Aquifer and into the Black Creek Aquifer. This feature is a likely controlling factor of the distribution of PFAS observed in the Surficial and Black Creek Aquifers at Site. TR0795 xvii October 31, 2019 Figure ES1 – Schematic Conceptual Site Model of the Site including geological layers, and PFAS transport pathways Historically PFAS, the Table 3+ PFAS originating from the Site, have been released at Site to air and from process water. Air sources result in a more distributed, diffuse concentration signature of deposited compounds that decrease in concentration in soil and groundwater gradually and radially away for the source. Meanwhile releases of water result in point sources and plumes of compounds in groundwater where high concentrations can be present in close proximity to low concentrations and where migration and distribution of compounds is controlled by geology and hydrogeology. Total Table3+ PFAS concentrations from the most recent sampling events (June to September 2019) are shown in Figure 9-8 through 9-10 for the Perched, Surficial and Black Creek Aquifer Units. Additional well installation in 2019 have further delineated the PFAS in the subsurface. Table 3+ PFAS at Site have been released to the environment through different pathways (air, terracotta pipe, leaking process sewers). Each of these release pathways has resulted in a characteristic signature of Table 3+ compounds as follows: TR0795 xviii October 31, 2019 • Aerial deposition PFAS signature characterized by a predominant proportion of PMPA; • Aerial deposition PFAS signature characterized by a mixture of PFAS compounds; • Combined process water PFAS signature characterized with a predominant proportion of PFMOAA; and • Combined process water PFAS signature characterized by a mixture of PFAS compounds. These signatures are evident in water samples. Seeps A, C, and D, the Old Outfall 002, and Willis Creek have the combined process water signatures. Seep B resembles the aerial PFAS signature with a mixture of PFAS compounds, however; this signature could also be associated with historical process water release. Georgia Branch Creek, offsite groundwater and upgradient groundwater at Site have the aerial deposition signatures. The Cape Fear River have a mix of the aerial and combined process water signatures. With respect to offsite wells, detection frequencies and concentrations are low in wells for most PFAS compounds. For Table 3+ compounds, seven out of the 20 Table 3+ PFASs were not detected in any samples, while the other 13 were detected in at least one sample. Spatially, the highest concentrations were observed at Bladen-1D (closest to the Site) and the lowest were observed at locations farthest from the Site following the primary and secondary wind directions along the west-southwest to east-northeast and south to north quadrants, respectively. The geology at Site has influenced hydrogeology and the distribution of PFAS in groundwater. For instance, the erosional feature mentioned earlier is interpreted as having created a pathway for PFAS in groundwater to migrate from the Perched Zone and Surficial Aquifer down into the Black Creek Aquifer. The effect of geology/hydrogeology will be further examined as part of the numerical groundwater model being prepared to evaluate groundwater flow in support of selecting and designing a groundwater remedy at the Site. Last, a sediment characterization program of the Cape Fear River is planned, pending NCDEQ approval of the submitted work plan. ES.5. Conclusions This On and Offsite Assessment Report and the 25+ assessments it relies upon provide sufficient data to inform an interpretation of the nature and extent of PFAS impacts to a level that remedial selection to address groundwater containing PFAS originating from the Site is feasible. Point source releases of high concentration process water at Site have resulted in groundwater that contains elevated concentration of PFAS migrating through all three geological zones present at Site (i.e., Perched Zone, Surficial Aquifer, and Black Creek Aquifer) and discharging via groundwater seeps, seepage to Old Outfall 002 or direct groundwater discharge to the Cape Fear River. TR0795 xix October 31, 2019 Chemours is preparing a Corrective Action Plan (CAP) for groundwater due December 31, 2019 as required by Paragraph 16 of CO. This CAP is being supported by: • Characterization data (reported here); • Numerical groundwater model (prepared using data presented here); and • Human health SLEA. This CAP will describe specific remedial measures and schedules to address PFAS mass loading to the Cape Fear River and other surface water bodies from (a) seeping groundwater and (b) direct discharge of Black Creek Aquifer groundwater to the Cape Fear River. TR0795 xx October 31, 2019 DOCUMENT VERSION SUMMARY This section summarizes document versions of the Site Assessment Report for the Chemours Fayetteville Works facility (Site) pursuant to Paragraph 18 of the February 25, 2019 Consent Order (CO) among Chemours, the North Carolina Department of Environmental Quality (NCDEQ) and Cape Fear River Watch (CFRW). Version Date of Last Revision Date Submitted to NCDEQ Comments Detailed Comments 1 - 9/30/2019 Version 1 (V1) - 2 10/30/2019 10/31/2019 Version 2 (V2) Results from 59 samples that were pending when V1 was issued. This includes onsite and offsite groundwater samples and soil samples. A synoptic groundwater measurement event was completed and collected data used to generate potentiometric surface maps for the three hydrogeologic units, vertical gradient calculations and the water levels on cross sections. With a more complete data set an assessment PFAS signatures was completed. The following text sections were updated: Executive Summary, 1.2, 2.5, 2.7, 6.1.4, 6.3.2, 6.4, 7.4, 9, 10.2, 10.4 and 11. Figures that have been updated include: 4-2A, 4-2B, 7-1, 9-1 through 9-10, 9-11 (new in V2), and 9-12 (new in V2), 10-2 through 10-6 Tables that have been updated include: 7-1 through 7-6, 9-1 through 9-5 Appendices that have been updated: A, G, H, I and J (new in V2) TR0795 1 October 31, 2019 1. INTRODUCTION 1.1 Purpose of the Site Assessment Report Geosyntec has prepared this On and Offsite Assessment Report (SA) of the Chemours Fayetteville Works facility (Site) pursuant to Paragraph 18 of the February 25, 2019 Consent Order (CO) among the Chemours Company FC, LLC (Chemours), the North Carolina Department of Environmental Quality (NCDEQ) and Cape Fear River Watch (CFRW). Paragraph 18 requires Chemours to fund a third-party contractor approved by NCDEQ after consultation with CFRW to perform this assessment. DEQ approved Chemours proposal that Geosyntec be the third-party contractor. This document focuses on the characterization of per- and polyfluoroalkyl substances (PFAS) in Site media. Assessment of other COCs was conducted as part of the Site Resource Conservation and Recovery Act (RCRA) management process and have been reported in the RCRA Facility Investigation (RFI) (Parsons, 2014). A Corrective Measures Study Work Plan for these COCs was approved by NCDEQ in February 2017 (NCDEQ, 2017). On July 7, 2017 Chemours requested a delay in the completion of the Corrective Measures Study due to additional sampling and characterization Chemours began conducting both voluntarily and in response to state requests regarding identification and detection of PFAS present at the Site. This report prepares an updated assessment of the Site incorporating PFAS data acquired since 2017. The objective of this SA is to develop the Conceptual Site Model (CSM) that forms the basis for developing the Corrective Action Plan (CAP) pursuant to Paragraph 16 of the CO due on December 31, 2019. Paragraph 18 requires this assessment comply with the requirements of 2L rules for site assessments provided in paragraph (g) of Title 15A of the North Carolina Administrative Code (NCAC), Subchapter 2L (2L), include describing: • The source and cause of contamination; • Imminent hazards to public health and safety and any actions taken to mitigate them; • Receptors and significant exposure pathways; • The horizontal and vertical extent of soil and groundwater contamination impact and significant factors affecting contaminant transport; and • Geological and hydrogeological features influencing the movement, chemical, and physical character of the contaminants. These requirements are addressed in this report. In addition to the requirements above, Paragraph 18 of the CO also requires the identification of groundwater seeps contributing to surface water mass loading contamination at the site and areas with significantly contaminated sediment. Identification of groundwater seeps and observations related to the seeps identified were reported in the Seeps and Creeks Investigation Report (Geosyntec, 2019a) and are described later in this report. An investigation to characterize sediment PFAS concentrations will be addressed as part of the Sediment Characterization Plan (Geosyntec, 2019b) required by CO Paragraph 11.2 and TR0795 2 October 31, 2019 submitted to NCDEQ on August 21, 2019. At time of this report’s submission, the Sediment Characterization Plan is still awaiting comment and approval by NCDEQ. Upon NCDEQ approval, Chemours will implement and then report the findings of the sediment characterization. This report is one of three major inter-related submissions required under the CO listed as follows: • The Cape Fear River PFAS Loading Reduction Plan (that addresses the imminent hazards to public health and safety and presents proposed mitigation measures), which was required under paragraph 12 of the CO and was submitted to NCDEQ on August 26, 2019. A Supplemental Assessment of Actions Report to the PFAS Loading Plan is being submitted in parallel with this SA report; • This SA document which is required under paragraph 18 of the consent order; and • The CAP for groundwater remediation which is required under paragraph 16 of the CO and will describe the remedy. Together, these three documents form the framework management strategy for overall site assessment and remedy. 1.2 Limitations and Assumptions This report draws on data available to support the development of the conceptual site model (CSM) and provides a robust assessment of the sources of contaminants, transport pathways and receptors being impacted. Some data, including laboratory results from samples collected from offsite wells, have been delayed due to issues that arose in obtaining offsite access agreements in a timely manner. As additional data and information from continued assessment become available, these data and insights will be incorporated into the approach to managing the Site; these activities are described in Section 2.7. This report presents analytical results of PFAS originating from the Site from over 25 assessment activities where there are over 3,167 environmental samples analyzed for at least HFPO-DA since 2017 with an additional 142 recently collected samples that are being reported here for the first time. Count of PFAS Samples to Date Sample Type Reported Previously Reported Here Total Onsite Soil 147 16 163 Onsite Groundwater 279 96 375 Offsite Soil -- 11 11 Offsite Groundwater -- 19 19 Drinking Water 1,742 -- 1,742 Surface Water 857 -- 857 Total 3,025 142 3,167 TR0795 3 October 31, 2019 2. SITE HISTORY AND DESCRIPTION This section provides a brief description of the site location, history of property ownership and use, surrounding land use and adjacent surface water bodies, permitted site activities, assessment and regulatory history. 2.1 Site Location, Acreage, and Ownership The Site is located within a 2,177-acre property at 22828 NC Highway 87, approximately 20 miles southeast of the city of Fayetteville along the Bladen-Cumberland county line in North Carolina. Figure 2-1 presents an overview of the Site location. Figure 2-2 presents a regional topographic map and Figure 2-3 presents a higher resolution topographic map of the Site. The Site property was originally purchased by E.I. du Pont de Nemours and Company (DuPont) in 1970 for production of nylon strapping and elastomeric tape. DuPont sold its Butacite® and SentryGlas® manufacturing units to Kuraray America Inc. (Kuraray) in June 2014 and subsequently spun off its specialty chemicals business to Chemours in July 2015. Chemours and its two tenants, Kuraray and DuPont, currently operate manufacturing areas on the Site, described below. 2.2 Site Description Presently, the manufacturing area of the Site consists of five production areas (Figure 2-1): Chemours Monomers IXM; Chemours Polymer Processing Aid (PPA) Area; Kuraray Trosifol® Leased Area; Kuraray SentryGlas® Leased Area; and DuPont polyvinyl fluoride (PVF) Leased Area. Chemours also operates the wastewater treatment plant (WWTP) and Power Area at the Site; filtered water and demineralized water are produced in the Power Area. The manufacturing area is approximately 312 acres, as shown in Figure 2-1, the remaining areas are grassy areas, forests and wetlands. 2.3 Adjacent Property, Zoning, and Surrounding Land Uses The Site is bounded by NC Highway 87 to the west, Cape Fear River to the east, and on the north and south by forested areas, farmland and private residences. Cumberland and Bladen County zoning maps indicate that the surrounding areas are zoned as residential, agricultural, conservation, industrial or commercial. 2.4 Adjacent Surface Water Bodies and Classifications To the east of the Site is the Cape Fear River. The Cape Fear River and its entire watershed are located in the state of North Carolina (Figure 2-4). The Cape Fear River drains 9,164 square miles and empties into the Atlantic Ocean near the City of Wilmington, North Carolina. The Site draws water from the Cape Fear River and returns over 95% of this water via Outfall 002 after being used primarily as non-contact cooling water. Two lock and dam systems with USGS stream gauges are located downstream of the Site: (1) W.O. Huske Lock and Dam, located 0.5 river miles from the Site (USGS 02105500); and (2) Cape Fear Lock and Dam #1, located 55 river miles downstream (USGS 02105769). TR0795 4 October 31, 2019 The Cape Fear River is a water source for communities downstream of the Site. Raw water intakes are located at Bladen Bluffs and Kings Bluff Intake Canal, located approximately 5 miles and 55 miles downstream from the Site. These intakes serve as Cape Fear River water intakes for the Lower Cape Fear Water and Sewer Authority, which in turn provides water to Cape Fear Public Utility Authority (CFPUA) and other water providers. Drinking water sourced from the Cape Fear River does contains certain chemicals from multiple sources including 1,4-dioxane, trihalomethanes associated with bromide content in raw river water, pharmaceuticals, personal care products, endocrine disrupting chemicals, and PFAS. A brief description of these chemicals and their presence in the Cape Fear River was reported previously (Geosyntec, 2018a). Two tributaries to the Cape Fear River, located to the north and south of the Site, are described in the Seeps and Creeks Investigation Report (Geosyntec, 2019a). To the north of the property is Willis Creek. During the Seeps and Creeks Investigation, Willis Creek was observed to have flow rates around 2,900 GPM in dry weather and around 6,500 GPM following rainfall. Willis Creek reaches from Highway 87 to the Cape Fear River. To the south of the property is Georgia Branch Creek, which is offsite for its entire course. During the Seeps and Creeks Investigation, Georgia Branch Creek was observed to have flow rates between 2,400 and 2,600 GPM in both wet and dry weather. Georgia Branch Creek runs northwest-southeast beside Highway 87 before turning east towards the Cape Fear River to the south of the Site. These creeks are shown in Figure 2-1. 2.5 Meteorological Setting The climate at the Site is humid subtropical, characterized by relatively mild winters, hot summers and abundant rainfall. Meteorological records collected at the Fayetteville Regional Airport, located approximately 17 miles north of the Site, for the last four-year period from September 2015 to September 2019 indicate temperatures range from an average monthly high of approximately 94 Fahrenheit (°F) in July to an average monthly low of approximately 34°F in January (North Carolina Climate Office, 2019). Average annual rainfall at the Site is approximately 45.3 inches per year for the period from 1930 to 2018, based on available data recorded at the National Ocean and Atmospheric Administration (NOAA) monitoring station in Fayetteville (Station ID: USC00313017), United States Geological Survey (USGS) monitoring station at Fort Bragg (Station ID: 2102908), and USGS monitoring station for the Cape Fear River at the W.O. Huske Dam (Station ID: 2105500). Extremely high precipitation is often recorded in July and August and sometimes into September and October (e.g., average monthly precipitation of 13 inches in September 2018) due to the tropical storms or hurricanes, which affect North Carolina on an average of 2.27 storms per year (North Carolina Climate Office, 2019). Wind directions collected at the Site for the period from January 2018 to May 2019 indicate primary and secondary wind directions are along the west-southwest to east-northeast and south to north quadrants, respectively (Figure 2-5). Wind directions vary from these primary and secondary wind directions during rain events, which occurs 5% of the time for the period from January 2018 to May 2019. Primary and secondary wind directions during rain events for the TR0795 5 October 31, 2019 period from January 2018 to May 2019 are along the east to west and east-northeast to west- southeast quadrants, respectively, as shown in Figure 2-4. 2.6 Permitted Activities and Permitted Wastes The Site received its initial RCRA Permit (NCD047368642) to operate a hazardous waste container storage area and tanks in February 1983, while under DuPont ownership. DuPont submitted an amended Part A application in 1991 to document upgrades to its fluorocarbon waste treatment and tank system. The RCRA Part B permit application submitted in August 1993 identified 71,750 gallons of container storage capacity at the container storage area. Stored waste included characteristic wastes (D001, D002, D003, D007, D009, and D029) and listed wastes (F002, F003, and F005). The Site’s RCRA Permit was re-issued in January 1998 and September 2012. On April 27, 2016, The Chemours Company – Fayetteville Works requested a renewal of the National Pollutant Discharge Elimination System (NPDES) permit for the Site (NC0003573). The application that preceded the permit also described the operations of two separate companies at the Site, Kuraray America Inc. and the DuPont Company. The discharge permit included permit limits for internal Outfall 001, after biological wastewater treatment, for the Chemours, Kuraray, and DuPont manufacturing processes, demineralized water neutralized regenerate, sanitary wastewater, and process area stormwater. Effluent limits for Outfall 002, the Site’s discharge to the Cape Fear River, included the treated flow from Outfall 001, non-contact cooling water, stormwater, and boiler condensate blowdown. In June 2017, Chemours began capturing certain process water from the Monomers IXM area for offsite disposal, and since November 2017, as directed by NCDEQ, all process waters from Chemours’s operation have been captured for offsite disposal. Chemours recently submitted a new NPDES permit application for the Site, which contemplates continued shipping of Chemours process wastewater from the Monomers IXM and PPA areas offsite and the intent to build a treatment facility to treat captured baseflow originating from Old Outfall 002, and a thermal oxidizer with water discharges where no additional PFAS outside of those PFAS present in the river water intake are expected to be present. The recent permit application includes descriptions of recent extensive sampling at the Site for HPFO-DA and PFMOAA, as well as a number of other PFAS. On March 14, 2019, Chemours received a Title V Air Quality Permit No. 03735T44 from NCDEQ to construct and operate the emissions sources and associated air pollution control devices(s). This permit authorized Chemours to continue manufacturing operations and install a thermal oxidizer to reduce by 99% site-wide PFAS emissions to air. 2.7 Assessment and Regulatory History Since 1996, several stages of RCRA Facility Assessments and Investigations have been conducted and are detailed in the RCRA Facility Investigation (Parsons, 2014). The RFI process was performed for Site COCs identified in the 2014 RFI including multiple VOCs, metals, other TR0795 6 October 31, 2019 inorganic compounds and perfluorooctanoic acid (PFOA). The RFI process did not include the Site Associated PFAS that are now analyzed by the Table 3+ SOP method; these compounds are listed in Table 2-1. The outcome of the RFI process was the Corrective Measures Study Work Plan submitted to NCDEQ on December 2, 2016 (Parsons, 2016). On February 8, 2017, NCDEQ approved Chemours Work Plan for preparing the Final Corrective Measures Study. On July 7, 2017, Chemours requested a delay in the completion of the Corrective Measures Study due to additional sampling and characterization Chemours began conducting both voluntarily and in response to state requests regarding identification and detection of additional PFAS present at the Site. Since identifying the presence of the PFAS associated with the Site, Chemours has performed multiple investigations and assessments and is continuing to perform assessments that support moving toward corrective action for PFAS at the Site. The table below list assessments conducted and the second table lists assessments in-progress and planned. PFAS Focused Assessment Activities to Date Assessment Reference 2018 Cape Fear River Sampling Geosyntec, 2018a 2018 Stormwater Characterization Geosyntec, 2018b 2019 Seeps and Creeks Investigation Geosyntec, 2019a 2019 Fate and Transport Study Geosyntec, 2019c 2019 Mass Loading Reductions Plan Geosyntec, 2019d 2019 Terracotta Pipe Section Grouting Geosyntec, 2019e 2019 Mass Loading Model Geosyntec, 2019f 2018 Post Florence Characterization Geosyntec, 2019i 2019 Conveyance Network Sampling Geosyntec, 2019j 2019 Outfall 002 Assessment Geosyntec, 2019k 2017 Groundwater Investigation Parsons, 2017a 2017 Soil Investigation Parsons, 2017b 2017 Surface Water Investigation Parsons, 2017c 2018 Terracotta Pipe Investigation Parsons, 2018a 2018 Additional Investigation Parsons, 2018b 2018 VE South Sampling Parsons, 2018c 2018 Old Outfall 002 Sampling Parsons, 2018d 2018 Exclusion Zone Investigation Parsons, 2018e 2018 Southeast Perched Zone Investigation Parsons, 2018f TR0795 7 October 31, 2019 Assessment Reference 2018 - 2019 Private Well GAC Pilot Parsons, 2018g On-going Private Well Sampling Parsons, 2019a 2019 PlumeStop™ Pilot Study Parsons, 2019b 2019 Old Outfall 002 GAC Pilot Study Parsons, 2019c 2019 Old Outfall Sampling Results Parsons, 2019d 2019 On and Offsite Assessment This Report Ongoing PFAS Assessment and Planned Activities Activity Description and Status Offsite Wells Continued assessment of offsite soil and groundwater in addition to private well data; 20 wells installed. Wells are being redeveloped and sampled. Consent Order Required Private Well Delineation By August 26, 2020 Chemours is required by CO Paragraph 21 to delineate the extent of private wells offsite with any PFAS on Attachment C of the CO present above 10 nanograms per liter (ng/L) within a quarter mile of other wells with similar detections. Human Health Screening Level Exposure Assessment Assessment of human receptor exposures to historically deposited PFAS from the Site. All samples collected, data and interpretations to be reported by December 31, 2019 Ecological Screening Level Exposure Assessment Assessment of ecological exposures to PFAS originating from the Site. Sampling was performed in part with the Human Heath SLEA sampling and will be completed with the Sediment Characterization sampling. Empirical Laboratory Study Assessment of Table 3+ PFAS empirical fate and transport characteristics. Portions of the study have begun. Components of assessment will be reported by December 31, 2019 where data are available. The full set of data will be reported in early 2020. Onsite Characterization Assessment of onsite groundwater levels and concentrations; in 2019, 42 wells installed. Full set of data collected from new wells are reported herein. TR0795 8 October 31, 2019 Activity Description and Status Consent Order Required Sediment Characterization Chemours submitted the Sediment Characterization plan to NCDEQ on August 21, 2019 is awaiting comments and approval before conducting sampling. Quarterly Mass Loading Sampling Assessment to evaluate mass loading to the Cape Fear River. Sampling and flow gauging performed quarterly in seeps, creeks, the Old Outfall 002, Outfall 002 and groundwater adjacent to surface water. Numerical Groundwater Model Quantitative assessment of groundwater at the Site to assess flow to surface water features and assess performance of potential remedies. Results to be reported by December 31, 2019. Consent Order Required Bimonthly Paragraph 11 PFAS Characterization Sampling Bimonthly assessment of PFAS concentrations in the Site conveyance network. Data and interpretations are reported quarterly. Consent Order Required Corrective Action Plan Corrective Action Plan for PFAS in groundwater. Due December 31, 2019. TR0795 9 October 31, 2019 3. REGIONAL GEOLOGY AND HYDROGEOLOGY 3.1 Regional Geology The Site is located on the Coastal Plain. In North Carolina, the Coastal Plain Physiographic Province extends from the present Atlantic Ocean inland to the Fall Line, an erosional contact boundary with the Piedmont Province (Figure 3-1). The Coastal Plain is comprised of a wedge of unconsolidated to semi-consolidated, both marine and terrestrial lithologic units that typically strike northeast-southwest and dip gently to the east-southeast (Trapp and Meisler,1992). This wedge of Coastal Plain sediments thickens east southeastward toward the Atlantic Ocean. Sediments of the Coastal Plain range in age from Cretaceous to Holocene and overlie older Paleozoic metamorphic, igneous, and sedimentary rocks of the Piedmont Province. Early Cretaceous deposition of Coastal Plain sediments were initially terrestrial in nature and were derived from adjacent upland areas, transported by streams, and deposited as alluvial and deltaic sediments. By Late Cretaceous time, a widespread marine transgression event caused sea level rise of the ocean and deposited marine sediments on older terrestrial sediments of the Coastal Plain (Trapp and Meisler, 1992). Several small-scale alternating transgressive and regressive events occurred as a result of eustatic sea-level change. Generally, the bottom one third of the Coastal Plain section is composed of terrestrial sand and clay sequences that are discontinuous and heterogeneous, while the upper sequences are primarily marine in origin and include nearshore and estuarine deposits, lagoonal sediments, and deep-water deposits (Winner and Coble, 1996). Specifically, the Cretaceous-aged Black Creek Formation is presently thought to be an assembly of estuarine and lagoon deposits. The estuarine deposits include rhythmically interstratified dark clays, sands, and gravelly intervals with wood, shell, bone, and clay pebble megaclasts (Farrell et al., 2001). The lagoon deposits consist of thinly bedded clay and alternating crossbedded sands, mottled sand, and contorted sand with clay laminae (Farrell et al., 2001). In comparison, the Cretaceous-aged Cape Fear Formation is interpreted to be both marine and fluvial in origin (Heron et al., 1968). The Cape Fear Formation consists of "a stack of feldspathic, bioturbated, upward-fining facies sequences" (Farrell et al., 2001). The Black Creek Formation can be observed unconformably overlying the Cape Fear Formation just north of the Site, near the Fall Line (NCGS, 1985; Farrell et al., 2001). 3.2 Regional Hydrogeology Successive deposition of permeable and impermeable sediments in this region has resulted in aquifers separated by confining units. Sediments that comprise the North Carolina Coastal Plain aquifer system lie on crystalline basement rock and are approximately 10,000 ft thick near the present Atlantic Ocean (Winner and Coble, 1996). The hydrogeologic framework of the North Carolina Coastal Plain aquifer system consists of 10 aquifers separated by 9 confining units (Winner and Coble, 1996). Stratigraphically, from top to bottom, the aquifers include: surficial aquifer (water-table aquifer), Yorktown Aquifer, Pungo River Aquifer, Castle Hayne Aquifer, TR0795 10 October 31, 2019 Beaufort Aquifer, Peedee Aquifer, Black Creek Aquifer, Upper Cape Fear Aquifer, Lower Cape Fear Aquifer, and Lower Cretaceous Aquifer. Exposed aquifers that appear to be present in the vicinity of the Site include, from stratigraphically top to bottom, a Surficial Aquifer, Black Creek Aquifer, and Upper Cape Fear Aquifer. The Surficial Aquifer is the uppermost unconfined hydrostratigraphic unit in the vicinity of the Site and constitutes the surface water table and follows the surface topography. The surficial aquifer in the vicinity of the Site is not restricted to a specific geologic unit in terms of age or lithology. The only interpretation that is made in regard to age is that the surficial aquifer is post-Cretaceous due to the unconformable contact above the Black Creek Formation. Surficial sediments in the vicinity tend to be variable and well graded sandy to silty soils that contain some significant amounts of clay. Regionally, surficial soils have reported saturated permeabilities of 4 to 40 feet per day (ft/day) (Winner and Coble, 1996). The Black Creek aquifer is separated from the surficial aquifer by the Black Creek confining unit, which consists of dark gray to black organic-rich clay. The Black Creek aquifer is associated with the Black Creek Formation, which is Cretaceous in age. Soils of the Black Creek aquifer are typically medium-grained, poorly graded, "salt and pepper" colored sands. The hydraulic conductivity of the Black Creek aquifer is estimated to range from 15 to 50 ft/day with the average value being approximately 28 ft/day (Winner and Coble, 1996). The Upper Cape Fear aquifer is separated from the Black Creek aquifer by the Upper Cape Fear confining unit, which consists of nearly continuous clay, silty clay, and sandy clay beds (Winner and Coble, 1996). The Upper Cape Fear aquifer is associated with the Cape Fear Formation, which is Cretaceous in age. Sediments of the Upper Cape Fear aquifer are typically alternating beds of well-graded, fine- to coarse-grained sand and clay that often show vertical gradation. The hydraulic conductivity of the Upper Cape Fear aquifer is estimated to range from 10 to 70 ft/day with the average value being approximately 30 ft/day (Winner and Coble, 1996). TR0795 11 October 31, 2019 4. PFAS PROPERTIES AND SOURCES This section provides a description of the physical and chemical properties of the Site associated PFAS (Section 4.1), laboratory studies being conducted to better understand selected physical and chemical properties, and sources of PFAS at the Site. 4.1 Table 3+ PFAS Characteristics Pursuant to Consent Order Paragraph 27, Chemours funded a study analyzing the fate and transport of identified PFAS originating from the Site in air, surface water, and groundwater (Geosyntec, 2019c). The findings of the study are summarized below. PFAS are a group of man-made carbon-based chemicals composed of a fully or partially fluorinated chain of carbon atoms (referred to as a “tail”) and a nonfluorinated, polar functional group (referred to as a “head”) at one end of the carbon chain. Fluorination of the carbon chain renders it hydrophobic and lipophobic, while the polar head group is hydrophilic (Mueller and Yingling, 2018). Generally, PFAS vapor pressures are low and water solubilities are high. Most PFAS have one or more negatively charged head groups, so they are likely to be relatively mobile in the subsurface due to the affinity of the head group for water molecules (Mueller and Yingling, 2018). Most Site associated PFAS, i.e. Table 3+ PFAS, are fluoroethers: their structure includes two carbons connected by an oxygen atom – an ether bond. PFAS with ether bonds are expected to be less volatile and more soluble than non-ether PFAS of equivalent chain length due to the polar oxygen atoms included in their structures. Table 3+ PFAS contain at least one polar head group and many also contain additional polar head groups. The structural information for the Table 3+ PFAS is provided in Table 4-1. Generally, Table 3+ PFAS are expected to be mobile in the environment given the presence of charged head groups and ether bonds, but they will experience some retardation. For some Table 3+ PFAS, mobility may be enhanced relative to straight-chain, non-ether PFAS by their branched structure and the presence of two charged head groups. The mobility of the Table 3+ PFAS will be retarded by various chemical processes but will likely have lower retardation than long-chain PFAS without ether bonds. Chemical processes expected to have the most impact on mobility are sorption to organic carbon and, in the unsaturated soil zone, preferential partitioning to the air water interface. The tails of PFAS are made primarily of carbon atoms. They tend to be nonpolar, and so they tend to sorb to organic carbon species in soil and sediment (Higgins and Luthy 2006, Guelfo and Higgins, 2013). Because PFAS tails are also lipophobic, sorption to organic carbon tends to be weaker than that of alkanes. The sorption and retardation of PFAS will increase with increasing fluorinated tail length. For a given soil, sediment, or organic carbon type, the structure of the PFAS tail affects its interactions with organic carbon molecules. Branched isomers tend to have lower sorption affinity than linear isomers of equal chain length (Kärrman et al., 2011). Sorption of PFAS TR0795 12 October 31, 2019 to charged particle surfaces in common soils and sediments is expected to be negligible relative to sorption to particulate organic carbon (Higgins and Luthy, 2006). Current literature indicates that transformation of most PFAS in the environment is negligible. An important observed environmental transformation of PFAS has been the hydrolysis of some polyfluorinated precursors to form perfluorinated compounds (Mueller and Yingling, 2018) and the biotic degradation of trifluoroacetate (e.g., Visscher et al., 1994). Recently, researchers identified an Acidimicrobium microbial species that appears capable of defluorinating select PFOA and PFOS (Huang and Jaffe, 2019). Components of the Table 3+ PFAS that may be amenable to transformation reactions that degrade the tails of these compounds are ether bonds present in 21 of 24 Site associated PFAS, and carbon-hydrogen bonds present in 5 of 24 Site associated PFAS. (e.g., Weber et al., 2017). 4.1.1 Empirical Parameters Testing Empirical laboratory studies are being performed to better understand selected physical and chemical properties of the Table 3+ PFAS so that more information is available on the potential fate and transport of these compounds. These studies are in progress and their results, where available, will be incorporated into the CAP. Empirical studies being conducted include: 1. Relative Sorptive Capacity: The relative capacity of soil / groundwater and of sediment / river water for the Table 3+ compounds is being evaluated to establish the contact times for the solids and water to achieve equilibrium and to determine solid to water ratios for subsequent isotherm and desorption tests; 2. Isotherm Testing: Isotherm tests will be conducted to develop isotherm adsorption curves and to develop Site-specific distribution coefficients (Kd) for the Table 3+ compounds; 3. Desorption Testing: Desorption tests will be conducted to assess desorption of Table 3+ compounds from sediment to PFAS-free simulated river water; 4. Column Testing: Column tests will be conducted to evaluate the retention and leachability of the Table 3+ compounds in unsaturated and saturated soils collected from the Site; 5. Octanol-Water Partition Coefficient (KOW) Measurements: Liquid chromatography elution time runs will be performed with compounds with known Kow values to calculate Kow values for Table 3+ PFAS per the HPLC method (OECD, 2004); and 6. Surface Tension Measurements: Surface tension measurements will be performed to help estimate the degree of retardation Table 3+ PFAS will experience in unsaturated zone soils due to air-water interfacial partitioning. 4.1.2 Laboratory Analytical Methods EPA method 537 is a commercial analytical method to analyze for PFAS compounds, including PFOA and PFOS. EPA method 8321A is a commercial analytical method for HFPO-DA. Through non-targeted mass spectrometry analyses of water and soil samples collected at Site, Chemours has identified 24 PFAS not currently quantified by EPA Method 537 or 8321A. In 2019, a commercial analytical method, referred to as the Table 3+ SOP method, was developed (Table 2- TR0795 13 October 31, 2019 1). An analytical method for four of these PFAS is still under development. These PFAS are Difluoro-sulfo-acetic acid (DFSA), Difluoromalonic acid (MMF), Perfluoro-2-methoxypropanoic acid (MTP) and Perfluoropropionic acid (PPF Acid). 4.2 PFAS Source Characteristics Historical fluoroproduct manufacturing at the Site resulted in releases of PFAS to environmental media. These releases have resulted in PFAS being now present as both diffuse and more concentrated secondary sources in environmental media on and off site. The remainder of this section provides an overview of the primary sources of Table 3+ PFAS in environmental media, including air (Section 4.2), soil and groundwater (Section 4.3), and surface water (Section 4.4) with secondary sources described in Section 4.5. 4.2.1 Emissions to Air The facility operates multiple stacks, blowers and vents as part of manufacturing activities. As part of CO compliance, the facility is capturing and treating these emissions to air to reduce PFAS emissions to air by 99% from facility wide operations compared to 2017 baseline. This reduction is required to be complete by December 31, 2019 with the installation and operation of the thermal oxidizer. The Thermal Oxidizer is also required to control PFAS in the streams routed to it with an efficiency of 99.99%. Prior to these in-progress reductions, and other interim reduction achieved over the past two years, PFAS compounds had been emitted to air and subsequently deposited both onsite and in the area surrounding the Site. The locations of emissions to air and locations of past loading are presented in Modeling Report: HFPO-DA Atmospheric Deposition and Screening Groundwater Effects (ERM, 2018) and in Figure 4-1. Estimates of past loadings to air and surface water and reductions in loadings achieved are presented in the PFAS Loading Reductions Plan (Geosyntec, 2019d). Generally, the four compounds reported with highest concentrations in offsite groundwater are PMPA, PEPA, perfluoro(3,5-dioxahexanoic) acid (PFO2HxA) and HFPO-DA as described in greater detail in Section 9.3 and Section 10.2. These four compounds have been found in certain private offsite wells and in Chemours installed offsite wells. Offsite wells are typically hydraulically upstream or isolated from groundwater near facility operations and are therefore Table 3+ PFAS detected in these wells are interpreted to have originated from aerial deposition only. Based on these offsite detections, these four compounds are interpreted to be the predominant PFAS emitted to air from the facility that subsequently deposit on the land surface. These historically airborne deposited PFAS compounds are also present on surface soils and can be mobilized during rainfall events. 4.2.2 Releases of Process Water to Soil and Groundwater On Site releases of PFAS to soil and groundwater occurred in the manufacturing areas. Known specific release pathways included (i) leakage from historical process water discharge lines, (ii) leakage of combined process water from the terracotta pipe and (iii) a manufacturing upset which occurred in October 2017. Each of these pathways is described below. TR0795 14 October 31, 2019 Historical process sewer system in Monomers IXM In 2000, the facility replaced underground piping in the Monomers IXM area that conveyed process waters and wastewaters with above ground piping (DuPont, 2006). At the time of writing, the facility identified one remaining underground pipe connecting the sump at vinyl ethers south to the vinyl ethers south retention basin. The basin ensures that the vinyl ethers south sump does not overflow during heavy rainstorm events. The replacement of the piping in 2000 was initiated based on observations of potential losses of process water to soils via leakage from these underground pipes. Replacement with above ground piping enabled routine inspections and the ability to perform more rapid leak detection and repair. Terracotta Pipe Leakage The terracotta pipe was designed to convey wastewater from the various manufacturing areas to the WWTP (Figure 4-1). Prior to June 21, 2017 Chemours transmitted PFAS containing process wastewater containing Table 3+ PFAS to the WWTP from the Monomers IXM Area via the terracotta pipe. Leaking of this process water from the terracotta pipe to groundwater is probable and these releases are likely the source of elevated PFAS detections at location PZ-18 and its replacement well, MW-24 (Parsons, 2018a). Chemours no longer transmits process water from the Monomers IXM Area to the WWTP. These wastes are sent to offsite disposal. In 2018, Chemours grouted a portion of the terracotta pipe, and by 2021 Chemours and Kuraray plan to fully decommission and replace the terracotta pipe with above-ground piping (Geosyntec, 2019e, f). October 2017 Scrubber Upset In October 2017, a scrubber upset occurred in the Vinyl-Ethers South area of the Monomers IXM Area (Arnold and Porter, 2017). This release resulted in process water containing PFAS contacting site soils and infrastructure in the Monomers IXM area. Subsequent to this release, Chemours removed soils from this area, replaced some roofing materials and re-lined the cooling water channel with new materials. The scrubber upset resulted in increased HFPO-DA concentrations in the Outfall 002 after rainfall events for a period of time. As materials were replaced, soils were removed and the area flushed, and observed HFPO-DA concentrations diminished at Outfall 002. 4.2.3 Releases of Process Water to Surface Water Prior to June 21, 2017, Chemours transmitted PFAS containing process wastewater to the WWTP from the Monomers IXM Area via the terracotta pipe. This process water was then transmitted via the WWTP to Outfall 002 where this water and the PFAS it contained reached the Cape Fear River. As of November 29, 2017, Chemours has diverted Chemours Monomers IXM Area process wastewater flows away from the WWTP and currently sends this wastewater offsite for disposal. PPA process water also contains PFAS, but this waste stream has always been collected and sent for offsite disposal since commissioning of the PPA Area. TR0795 15 October 31, 2019 4.2.4 Secondary Sources Chemours has taken measures to mitigate releases of PFAS to groundwater, soil, and surface water, and will have reduced annual emissions of PFAS compounds to air by 99%, once the thermal oxidizer, which will control PFAS routed to it with an efficiency of greater than 99%, is operational by December 31, 2019 as required by the CO. Historical releases have resulted in the following secondary sources of PFAS being present in the environment: • PFAS in soils and groundwater from aerial deposition. Aerial deposition has resulted in a distributed, non-point source secondary source of PFAS in onsite and offsite soils. Infiltrating rainfall has transported these PFAS downward to groundwater. The currently identified extent of this secondary PFAS source is shown in Figures 4-2A and 4-2B. • PFAS in soils and groundwater from Site process water releases. Process water leaks in the manufacturing areas resulted in PFAS in Site soil and groundwater. Based on the hydrogeology of the Site, these PFAS are detected the Perched Zone, Surficial Aquifer, or Black Creek Aquifer and then migrate towards primarily the Cape Fear River and Old Outfall 002 with some component reaching Willis Creek. TR0795 16 October 31, 2019 5. RECEPTOR INFORMATION This section summarizes currently known receptors in the area surrounding the Site. Presently, as required in Paragraph 21 of the CO, the full extent of PFAS present in private well receptors is being delineated with the task to be completed by August 26, 2020 (Parsons, 2019a). Receptors identified within six miles of the Site are shown in this report. Receptors included in this document are public and private supply wells, surface water bodies and intakes, and human and ecological receptors. As of September 2019, the full extent of PFAS in private wells surrounding the Site is not complete and sampling is ongoing to delineate the extent. 5.1 Summary of Receptor Survey Activities Information surveys, described in more detail below, were completed to identify potential receptors including public and private water supply wells, wellhead protection areas, surface water features, and human and ecological receptors. Information was also gathered on subsurface structures onsite that could be a preferential pathway. Receptors were identified as listed below: 1. Public water supply wells were identified using publicly available well data from NC OneMap GeoSpatial Portal. 2. Private water supply wells were identified through a door to door residential survey conducted by Chemours’ contractor Parsons. GIS parcel data was reviewed for properties with structures, and residents of those properties were approached to determine whether they owned a private well. Structures in areas with no public water supply were assumed to be on a private well, and this was confirmed through communication with the residents where possible. There was no private well registration system available for the area around the Site. 3. Wellhead protection areas were identified using publicly available data on North Carolina wellhead protection areas from NCDEQ and using publicly available data on usage of public water supplies. 4. Surface water bodies were identified using publicly available surface water data from the USGS National Hydrography Dataset. The surface water intakes have been previously described. 5. Human receptors are being identified and will be assessed through an Offsite Screening Level Exposure Assessment (SLEA) of Site Associated PFAS (Geosyntec, 2019g) in progress. 6. Ecological receptors are being identified and will be assessed through an Ecological- SLEA. The workplan for the Ecological-SLEA is in preparation. 7. Onsite subsurface structures that could be preferential pathways were identified using Site data and as-built information that is kept up to date by Chemours’ contractor KBR Inc. TR0795 17 October 31, 2019 5.2 Summary of Receptor Survey Findings 5.2.1 Wells and Wellhead Protection Areas To date, 75 public/community wells and 926 private wells have been identified in the counties surrounding the Site (see Figure 5-1). Community wells are those that serve more than one household. The full extent of offsite contamination is still being assessed, as such the number of identified private wells will increase. There is limited availability of drilling records including logs and installation depths for many private wells. The geological and hydrogeological settings where these well receptors are present are described, to the extent possible, in Section 3.1. The offsite wells installed in August and September 2019 are described in Section 6.4. Public/community wells identified are listed in Table 5-1, along with their locations, depths, usage, and distance from the Site. Private wells shown on Figure 5-1 are not included in Table 5-1 in order to protect the privacy of well owners. Surrounding property owners are similarly not identified for privacy reasons. Wellhead protection areas, as defined in the Safe Drinking Water Act: 42 U.S. Code § 300h–7, surrounding the Site are identified in Figure 5-2. According to publicly available data, there is one wellhead protection area in the extent of Figure 5-2, including three municipal water supply wells (PWS ID 03-78-030). Daily water extraction from these wells taken together ranges from 0.18 to 0.30 million of gallons per day (MGD). Further details available regarding these wells in the wellhead protection area is provided in Table 5-1. 5.2.2 Surface Water Receptors Surface waters in the region surrounding the Site include the Cape Fear River, tributaries, ponds, swamps and marshes, and several small streams and ditches. Figure 5-3 identifies named surface water bodies from the USGS National Hydrography Dataset surrounding the Site. Sampling of the Cape Fear River and tributaries to the Cape Fear River has been performed as part of multiple site investigation activities. Sampling of ponds and tissues of fish from the ponds has been performed for the Human Health and Ecological-SLEA. These SLEAs are described in the following sub- sections. 5.2.3 Human Receptors and Human Health SLEA At the Site, human activities are limited to facilities operations and maintenance, office workers, and environmental monitoring activities. In the area surrounding the Site, there is a wide range of human and land use activities, including private residences, farms, commercial businesses, and recreational areas. Current exposures to historically released PFAS for these activities are being evaluated through the Offsite Screening Level Exposure Assessment (SLEA) of Site Associated PFAS - Workplan (Geosyntec, 2019h). Chemours is performing this SLEA to support the CAP due on December 31, 2019. The results of the SLEA will be reported by December 31, 2019. The SLEA is evaluating the following receptor types: TR0795 18 October 31, 2019 1. Residents. The nearest residence is approximately ½ mile north of Site manufacturing areas. North and northwest of the Site, several residential neighborhoods exist within 6 miles of the Site. 2. Farmers. Farmers were identified as potential receptors based on the predominance of agricultural land use to the east, south, and west of the Site. 3. Gardeners. Residents and farmers may garden on their properties. 4. Offsite workers. Although residential and agricultural land uses predominate the areas surrounding the Site, some commercial businesses are also present. 5. Recreational Canoeists/Swimmers. The Cape Fear River may be used for recreational purposes, including canoeing and swimming. 6. Recreational Anglers. The Cape Fear River and surrounding ponds may be used for recreational purposes, including fishing. For the receptors identified above, the SLEA is evaluating the following potential exposure pathways listed below: 1. Residents (Adult and Child): Surface soil via incidental ingestion and groundwater and surface water as tapwater via ingestion. 2. Farmers (Adult and Child): Surface soil via incidental ingestion; groundwater as tapwater via ingestion; and, aboveground leafy vegetables (e.g., lettuce), aboveground fruits (e.g., tomatoes), and belowground vegetables (e.g., carrots) via ingestion. 3. Gardeners (Adult and Child): Surface soil via incidental ingestion; groundwater as tap water via ingestion; and, aboveground leafy vegetables (e.g., lettuce), aboveground fruits (e.g., tomatoes), and belowground vegetables (e.g., carrots) via ingestion. 4. Recreational Canoeists/Swimmers (Adult and Child): Surface water via incidental ingestion. 5. Recreational Anglers (Adult and Child): Fish tissue fillets via ingestion. 5.3 Ecological-SLEA An Ecological-SLEA is being performed to assess exposures to PFAS in the Cape Fear River adjacent to and downstream of the Site and the terrestrial habitat surrounding the Site. Chemours is performing this Ecological-SLEA to help inform management of PFAS in the environment. Environmental samples including samples of river water, river sediments, terrestrial plants, terrestrial invertebrates, surface soils and fish are being collected to evaluate these exposures. 5.4 Summary of Site Subsurface Structures As discussed in Section 4.2, direct releases of PFAS to Site soil and groundwater have been documented, some of which occurred through leaking sewers used historically for PFAS process water conveyance. Figure 5-4 shows a site map and known subsurface structures including underground piping. Offsite underground structures are not included in Figure 5-4 since the offsite impacts are widely distributed and there are no indication of sources emanating from such TR0795 19 October 31, 2019 structures to other media These PFAS were deposited aerially and distributed across the land surface due to the non-point source nature of aerial deposition. 5.5 Mitigation Measures/Point of Use Treatment Pursuant to CO Paragraphs 19 to 25 (Compliance Measures), Chemours is implementing a Drinking Water Compliance Plan (Parsons, 2019a). Through this plan, Chemours is providing replacement drinking water to private residents whose drinking water wells are impacted by PFAS listed on Attachment C of the CO. Replacement drinking water is being provided through a range of options depending on the levels of PFAS found. First residents are supplied bottled water as an interim measure. Then residents, should they accept, will receive either: (i) point of use reverse osmosis systems, (ii) whole house filtration systems, or (iii) connection to public water supplies to private residents whose drinking water wells are impacted by Site associated PFAS. Pursuant to CO Paragraph 19, Chemours is working with NCDEQ to identify locations where public water is available and can be provided to private residents for less than $75,000 per affected party. Beyond this threshold, permanent water supplies will be provided through whole house filtration systems or reverse osmosis systems. Chemours is providing quarterly updates on implementation of the Drinking Water Compliance Plan to NCDEQ. TR0795 20 October 31, 2019 6. ADDITIONAL CHARACTERIZATION Following review of the existing CSM (Parsons, 2018b), additional data requirements were identified, and several field programs completed to enhance the CSM and inform the development of a CAP. These additional characterization efforts included: 1. Assessment of the seeps and creeks near the facility (Geosyntec, 2019a): the objective of this program was to identify the locations of seeping groundwater at the facility and assess the mass loading from the various transport pathways of PFAS originating from the facility to the Cape Fear River. 2. Onsite Black Creek Aquifer Characterization: the objective of this program was to understand the hydrogeology and groundwater discharge characteristics from the Site to the Cape Fear River along the river bank. An overview of the assessment and the results are presented below in Section 6.1 and a description of field methods implemented is provided in Appendix A. 3. River Temperature Assessment: the objective of this program was to assess areas of groundwater upwelling along the Cape Fear River shoreline adjacent to the Site. An overview of the assessment and the results are presented below in Section 6.2. 4. Additional Onsite Investigation: the objective of this program was to refine the understanding of the site lithology and the extent and magnitude of PFAS in different stratigraphic layers to support groundwater flow modeling. Several wells were installed to assess conditions adjacent to nearby surface water bodies and serve as dual purpose performance monitoring wells for the CAP. An overview of the assessment and the results are presented below in Section 6.3 and a description of field methods implemented is provided in Appendix A. 5. Offsite Characterization: the objectives of this program were to assess the horizontal and vertical extent of PFAS in soil and groundwater and to facilitate comparison with results obtained from private wells being sampled as part of Paragraph 21. An overview of the assessment and the results are presented below in Section 6.4 and a description of field methods implemented is provided in Appendix A. 6.1 Onsite Black Creek Aquifer Characterization 6.1.1 Objectives The objectives of the onsite Black Creek Aquifer characterization study were to: Refine understanding of geology, hydrogeology and groundwater discharge at the Site to surface water and Cape Fear River. i. Assess groundwater flow to the Cape Fear River, i.e., regions of higher vs. lower groundwater flow; ii. Assess the spatial and vertical distribution of hydraulic conductivity of soils along the Cape Fear River bank; iii. Evaluate groundwater gradients across the Cape Fear River bank; TR0795 21 October 31, 2019 iv. Assess PFAS concentrations in groundwater to facilitate a more refined estimate of PFAS mass loading to the Cape Fear River; and The following scopes of work were completed: i. Geologic mapping of the Black Creek Confining unit and other lithologic features of interest; ii. High-resolution hydraulic conductivity and electrical conductivity profiling along the Cape Fear River bank using the Hydraulic Profiling Tool/Electrical Conductivity (HPT/EC); iii. Installation of 15 paired monitoring wells to assess hydraulic gradients; iv. Collecting soil samples for lithologic classification and groundwater samples to assess soil physical parameters and PFAS concentrations; and v. Slug testing the five LTW wells and select wells adjacent to the Cape Fear River to assess hydraulic conductivity. Methods and results for each scope of work is summarized below, groundwater sampling results are discussed in Section 9. Details on investigation methods are provided in Appendix A. 6.1.2 Geologic Mapping The objective of the geologic mapping effort was to locate and collect outcrop measurements to inform the Site lithologic conceptual model. The following litho-stratigraphic units were included in this mapping effort, listed from stratigraphically lower sections to stratigraphically higher sections: (1) Black Creek Confining Unit; (2) Surficial Aquifer Unit; (3) Perched Clay Unit; and, (4) Perched Zone Unit. Prior to mapping, field teams reviewed onsite lithostratigraphy and a type section (i.e., reference exposure) of the Black Creek Confining Unit located at the USGS W.O. Huske Lock and Dam. This type section is a 2-meter outcrop section of the Campanian-aged Tar Heel Formation, a subgroup of the Black Creek Group, described in literature as lenticularly bedded, black carbonaceous clay with thin partings of light-colored micaceous, fine sand (Farrell et al., 2001, Owens and Sohl, 1989). Stratigraphic units were mapped in areas where exposed outcrops are visible, safely accessible, and topographic information was available. Exposed outcrops were primarily located along stream cuts at Seep A, Seep B, Seep D, Old Outfall 002 and portions of Willis Creek. Stream cuts along Seep C were heavily vegetated and outcrops were less visible at the time of mapping. Exposures along Old Outfall 002 provided the most continuous outcrops and spanned approximately 4,500ft. At each accessible outcrop location, the station number, location, approximate elevation, outcrop type and size, major and minor lithologic description, structural features, strike, and dip were recorded. Structural features were measured using a Brunton compass. Figure 6-1 shows 41 locations where outcrops were observed, primarily within stream cuts, along Seep A, Seep B, Seep D, Old Outfall 002 and portions of Willis Creek. Table 6-1 summarizes TR0795 22 October 31, 2019 information collected at each outcrop location. Observations for each lithostratigraphic unit is described below from stratigraphically lower sections to stratigraphically higher sections. Black Creek Confining Layer The Black Creek Confining Unit was the most frequently exposed outcropping unit at the Site, observed at 28 locations. Exposures ranged from 1 to 24 ft in thickness and were primarily observed in cut banks, waterfalls, creek beds, and ledges at elevations between 53 and 83 ft above mean sea level along Seep A, Seep B, Seep D, Old Outfall 002, respectively. Larger outcrop exposures (greater than 10 ft thick) were primarily observed along the Old Outfall 002. Lithostratigraphic description of this unit at outcrops were recorded as light and dark gray to black, massive to thinly laminated, fat to lean, moderately plastic, soft to firm clay with trace mica and sulfide mineralization. Locally, clay was observed with millimeter to meter scale interlayers of dark gray to light gray, fine- to medium-grained, poorly- to well-graded, angular, quartz-rich sand and silty sand. Local lignitic layers and individual sections of petrified wood (not connected to the outcrop) were also observed throughout the Black Creek Confining Unit. The presence of interstratified dark clays and cross-stratified sands with lignite and wood are a common, recurring facies in the Black Creek Formation along the Cape Fear River, as described in literature (Farrell et al., 2001, Owens and Sohl, 1989). Structural features observed and measured in the Black Creek Confining Unit include bedding, cross-bedding, and joints. Locally, this unit displayed northeast-southwest strikes with primarily horizontal bedding and gentle dips ranging from 4 degrees to less than approximately 10 degrees. Higher dip measurements recorded at certain locations (e.g., 23 degrees at location 28; Table 6-1, Figure 6-1) may likely be attributed to slumping or cross-bedding. A northeast-southwest strike with primarily horizontal bedding and gentle dips is consistent with generally observed trends for Cretaceous-aged, Coastal Plain deposits of North Carolina in this area (Section 3). Joints were observed within the Black Creek Confining Unit at six locations (Table 6-1). Trends of joints observed revealed no preferred orientation but displayed primarily steep dips ranging from 46 degrees to 89 degrees. Surficial Aquifer The Surficial Aquifer Unit was observed overlying the Black Creek Confining Unit at three locations along Old Outfall 002 and two locations along Seep A (Figure 6-1). Limited exposures ranged from 1 to 5 ft in thickness and were primarily observed in cut banks and ledges at elevations between 77 and 103 ft above mean sea level along the Old Outfall 002 and Seep A, respectively. Lithostratigraphic description of this unit at outcrops were recorded as red-brown to tan-white, thinly bedded, fine- to coarse-grained, angular, poorly to well-graded, weakly compacted, quartz- rich sand with highly oxidized laminations. Locally, sand was observed with centimeter to tens of centimeter-scale light and dark gray, thinly laminated, lean, weakly plastic, soft, mica-rich clay. TR0795 23 October 31, 2019 Perched Zone The Perched Zone was observed overlying the Surficial Aquifer in Old Outfall 002 and Seep A at elevations between 89 and 136 ft above mean sea level. Exposures ranged from 0.5 to 4 ft in thickness and were primarily observed in cut banks and waterfalls. Lithostratigraphic descriptions of this unit at outcrops were recorded as light gray and reddish orange to dark gray, thinly laminated, fat to lean, moderately plastic, soft, mica-rich clay. Upper portions of this unit were highly oxidized and contained local centimeter to tens of centimeter scale interbedded reddish orange, medium- to coarse-grained, poorly graded, angular to sub-rounded, hematite-rich sandstone. Only two exposures of the Perched Zone were observed during this mapping event at elevations between 120 and 147 ft above mean sea level along the Old Outfall 002 and Seep A, respectively. The two exposures were very limited and revealed approximately 1 ft of red-brown to tan, fine- to coarse-grained, angular, well-graded, weakly compacted to unconsolidated, highly oxidized sand. 6.1.3 Permeability and Electrical Conductivity Profiling The primary objective of the permeability and electrical conductivity profiling was to assess the lithologic and hydrogeologic characteristics of the Black Creek Aquifer that may be in direct connection with the Cape Fear River. This assessment included investigating the spatial and vertical distribution of electrical conductivity, permeability and estimated hydraulic conductivity along the Cape Fear River bank using the combined HPT/EC. Hydrogeologic characteristics of the Black Creek Aquifer along the Cape Fear River bank were assessed by a direct push rig equipped with the HPT/EC probe. During hydraulic profiling, clean water was injected into the subsurface at a controlled rate. Total pressure required to inject the water (referred to as HPT pressure) served as a proxy for the permeability of the formation and, along with the rate of injection, is was used to estimate the hydraulic conductivity. Simultaneous electrical conductivity measurements provided additional information on the lithology (e.g., due to grain size and mineralogy, EC is typically higher in clays than in sands) and showed relative changes in lithology with depth. This assessment was completed at 31 locations shown on Figure 6-2. HPT/EC tooling was advanced until refusal was encountered, and total boring depths varied between 32 to 61 ft bgs. Table 6-2 provides a list of HPT/EC borings completed along with the total depth advanced. To allow for correlation of site-specific HPT/EC responses with lithologic descriptions of the LTW wells, five of the 31 HPT/EC locations were selected to be co-located with existing wells. Ten additional soil borings were advanced at locations where HPT/EC profiling was completed. Continuous soil cores were collected from the bottom of hand auger clearance (about 5 ft bgs) to approximate depths of HPT/EC borings with a dual tube or macro core sampler, visually logged, and sampled for physical parameters, as discussed in Section 7. Locations of HPT/EC borings and co-located soil borings completed are shown in Figure 6-2 with additional information provided in Table 6-2. HPT/EC raw data are provided in Appendix B. TR0795 24 October 31, 2019 The HPT/EC response observed for a given formation is influenced by several factors including permeability, grain size, mineralogy, moisture content, presence of dissolved ions in groundwater and temperature (Keys, 1997). Typically, the EC response of clays and fine-grained sediments is higher than that in silts, sands and gravel due to their mineralogy (Schulmeister et al., 2003, Wilson et al., 2005). Similarly, the HPT pressure required to inject water into the formation is indicative of the permeability of the formation; higher pressure indicates a lower permeability formation and vice-versa. Reviewing EC response curves and in conjunction with HPT pressure logs can indicate the presence of low permeability, clay-rich formations and higher permeability, sandy formations. Soil boring logs that combine lithologic descriptions and HPT/EC responses for the five existing LTW-wells and ten additional soil borings are provided in Appendix C. Comparison of HPT/EC response in 15 borings where lithologic information was available from soil borings matched well with predicted responses. A comparison of HPT/EC response from HP-10 location with PIW-7 soil boring lithologic description is discussed here as an example. Lithologic logs for PIW-7 indicate that silts and clays interbedded with some sands are observed between 5 to 15 ft bgs. This lithology transitions from fine-grained material to interbedded fine- to medium-grained sands with silt lenses and clay seams from approximately 15 to 30 ft bgs. The EC and HPT response for the 5 to 15 ft bgs interval [geometric mean values of 10 milliSiemens per meter (mS/m) and 15 psi, respectively] are generally greater than those observed for the underlying 15 to 30 ft bgs interval (8 mS/m and 6 psi, respectively). The HPT response also displays a peak characteristic of lower permeability lithologies in the shallower 5 to 15 ft interval. An overall increase in EC and HPT response with depth in this interval is indicative of a higher clay fraction and lower permeability. This trend of high EC response and characteristic HPT pressure are generally observed within the top 5 to 24 ft of this unit at most HPT locations along the Cape Fear River bank, which indicate that a fine grained, low permeability unit of variable thickness is observed at the surface along the Cape Fear River bank. Due to its proximity to the Cape Fear River and recurring flooding events, it is likely that this unit may be related to floodplain deposits. Notably, the HPT/EC tool was sensitive enough to capture a clay seam that was less than a foot thick at 27 ft bgs through a spike in EC and HPT pressure response at this depth. This clay seam does not appear to be present at all locations (e.g., absent at HP-1 and PIW-1) and appears to be of variable thickness (e.g., 18 ft at HP-21 and 5 ft at HP-11). This clay unit is described as dark gray, fat clay, very hard and interbedded with silts and sand lenses, likely corresponding to the Black Creek Confining Unit. The interval from 30 to 38 ft at HP-10 is marked by relatively low EC (geometric mean value of 4.5 mS/m) and HPT response (geometric mean value of 1.3 mS/m). Lithologic description indicates a dark gray, medium grained, well sorted sand with some banded lignitic material in this interval and is considered to be representative of the Black Creek Aquifer. Estimated hydraulic conductivity values modeled from measured HPT injection pressure and flow rates within the Black Creek Aquifer are generally an order of magnitude higher (geometric mean between 39 to TR0795 25 October 31, 2019 68 ft/day) than the floodplain deposits (geometric mean between 2 to 4 ft/day). Estimated hydraulic conductivity values for the Black Creek Aquifer are consistent with regional estimates, which range from 15 to 50 ft/day with an average value of approximately 28 ft/day (Winner and Coble, 1996). These estimates are also comparable with hydraulic conductivity estimated through slug testing for wells screened in Floodplain deposits (geometric mean of 5 ft/day) and Black Creek Aquifer (geometric mean of 40 ft/day). The underlying interval from 38 ft to boring refusal at 44 ft bgs is marked by a relative increase in both EC response (geometric mean value of 12 mS/m) and corrected HPT pressure (geometric mean values of 12 mS/m and 27 psi, respectively), indicative of a clay-rich, very low permeability unit. This unit is described as a greenish-gray, very stiff, fat clay with trace sand, very micaceous and thin dark gray mineral banding. Lithologic descriptions and elevations from deep, onsite borings (e.g. BCA-03) refer to this unit as the Upper Cape Fear Confining Unit. This unit was encountered at all HPT boring locations along the Cape Fear River bank, with the exception of HP-07 where shallow refusal was encountered in the Black Creek Confining Unit. Approximate elevations of the top of the Cape Fear Confining Unit appear to correspond approximately to the bottom of the Cape Fear River channel, estimated at 5 ft NAVD88 elevation in the vicinity of the site (HEC-RAS, 2012). Cape Fear River channel depths are further refined during the river temperature assessment (Section 6.2). Results from HPT/EC assessment were included in developing a site wide 3-D conceptual hydrostratigraphic model as described in Section 7. 6.1.4 Installation of Paired Wells A total of 15 paired wells were installed along the Cape Fear River bank from Willis Creek to the southern property boundary to assess the vertical and horizontal hydraulic gradients and characterize groundwater-surface water interactions in this area (Figure 6-2). Spatial and vertical variations in HPT/EC responses along with lithologic information from co-located soil borings were utilized in selecting locations and screen depths for installation of one shallow and one deeper well at each location. Shallow wells were screened between 17 to 30 ft bgs to correspond to the lower permeability floodplain deposits or underlying the aquifer material (described as interbedded fine to medium grained sands with silt lenses and clay seams). Deeper wells were screened between 30 to 59 ft bgs in the Black Creek Aquifer consisting of medium grained sands with higher permeability. Shallow wells were typically installed using hollow stem augers, while deeper wells underlying confining units were cased and installed using sonic drilling. Well construction information is summarized in Table 6-3. Lithologic logs and well construction forms are provided in Appendix D. Wells PW-02, PW-03, PW-04, PW-07, PW-10R, PW-12, and PW-13 had persistent elevated turbidity above 50 nephelometric turbidity units (NTUs) during development. These wells will be further developed and sampled again. TR0795 26 October 31, 2019 6.1.5 Slug testing LTW wells and select Black Creek Aquifer Wells Hydraulic conductivity of the Perched Zone and Surficial Aquifers have previously been assessed through slug tests and pump tests (Parsons, 2018b). The objective of this assessment is to estimate the hydraulic conductivity of the Black Creek Aquifer and the Floodplain deposits in the vicinity of select wells through additional slug testing. Four wells screened in the Black Creek Aquifer (SMW-12, BCA-01, BCA-02 and BCA-04) and five LTW wells (LTW-01 through LTW-05) were selected for this assessment (Figure 6-3). Based on available lithologic descriptions for the LTW wells, LTW-01, LTW-03 and LTW-04 are presumed to be screened in the Floodplain deposits; LTW-02 screened within the Black Creek Aquifer, and; LTW-05 partially screened across the Floodplain deposits and the Black Creek Aquifer. Pneumatic slug tests were performed where measured water levels were sufficiently above well screen such that aquifer could be sufficiently stressed without dewatering the well screen. Manual slug tests were performed at all other locations. Both methods were performed at LTW-05 and no discernable method bias effect was noted. A minimum of four slug tests were performed at each location. Hydraulic conductivities estimated from slug tests for the Black Creek Aquifer and Floodplain deposits in the immediate vicinity of selected wells are summarized in Table 6-4. Summarized results only include tests that displayed measured displacement response curves free of testing artifacts such as inertial effects or filter pack drainage. Detailed slug test results, AQTESOLV inputs and outputs are included in Appendix E. Results from the five wells screened in the Black Creek Aquifer (SMW-12, BCA-01, BCA-02, BCA-04 and LTW-02) indicate a geometric mean hydraulic conductivity of 28 ft/day. In comparison, wells screened within the Floodplain deposits (LTW-01 and LTW-03) display a geometric mean hydraulic conductivity of 0.9 ft/day, generally an order of magnitude lower than estimates from wells screened in the Black Creek Aquifer. LTW- 05, presumed to be partially screened across the Floodplain and Black Creek Aquifer units, displayed an intermediate geometric mean hydraulic conductivity of 5.7 ft/day. Estimates of hydraulic conductivity from slug tests compare well with modeled estimates from measured HPT injection pressure and flow rates within the Black Creek Aquifer (geometric mean between 39 to 68 ft/day) and the floodplain deposits (geometric mean between 2 to 4 ft/day). Further, geometric mean hydraulic conductivity for the Black Creek Aquifer from slug test assessment also compares well with regional estimate of approximately 28 ft/day (Winner and Coble, 1996). 6.2 River Temperature Assessment This subsection describes the task objectives, the methods used in data collection, and the results of the temperature survey conducted in the Cape Fear River along the Site shoreline. 6.2.1 Objectives The objective of the temperature survey was to investigate whether there are areas in the Cape Fear River along the Site shoreline where sediment porewater temperatures are lower than overlying surface water temperatures. During times of year when surface water is either much warmer or much colder than groundwater temperatures, differences in temperatures between TR0795 27 October 31, 2019 porewater and overlying surface water may indicate areas of groundwater upwelling. During summer months, groundwater is expected to be cooler than surface water (Kaandorp et al., 2019). 6.2.2 Methods A general overview of the strategy and methods used during the temperature survey are described here. Temperatures were surveyed at 119 total locations between the Site shoreline and the deepest part of the channel, known as the thalweg, along the property boundary as indicated in Figure 6-4. The thalweg was evaluated along each sampling cross-section using a depth-finder mounted on the sampling vessel. The thalweg is located along the western riverbank in the northern portion of the Site, shifts away from the western bank towards the eastern riverbank between Areas 1 and 2 indicated on Figure 6-4, and then returns to the western bank in the central portion of Site shoreline. After arrival at each survey location, the location of the survey point was collected using a handheld global positioning system (GPS) unit (Trimble GeoXH; Trimble Inc.; Sunnyvale, CA), and the water depth was measured with a graduated survey rod or weighted line. Temperature probes (TROLL700s data loggers [Insitu Inc.; Bingen, WA]) were deployed approximately 1 inch into the sediment surface, 3 inches above the sediment surface, and 6 inches above the sediment surface. The sampling assembly remained deployed until readings for the three temperature probes stabilized, and measurements were recorded. Where a temperature difference between the probes located in the porewater and at 6 inches above the sediment surface was more than 0.5 celsius (°C), additional step-out sampling locations were surveyed (Figure 6-5). 6.2.3 Results Results of the temperature survey are depicted on Figure 6-5. The color of the symbol at each location corresponds with the temperature gradient measured between the porewater and six inches above the sediment surface. Of the 119 locations surveyed, 113 of the locations had temperature gradients less than 0.5°C; among these, the average temperature gradient was 0.07°C (Table 6-5). Six locations had temperature gradients greater than 0.5°C, with those gradients ranging from 0.61°C to 5.25°C (Table 6-5; Figure 6-5). These areas are shown with inset maps on Figure 6-5. Where step-out locations were surveyed around areas where temperature gradients were measured above 0.5°C, temperature gradients generally return to background conditions within a few ft from the step-out location (Figure 6-5). Because temperature gradient measurements appear to be localized, it is possible that areas of upwelling exist which were not captured based on the density of measurement points recorded. Four of the five areas where temperature gradients exceeded 0.5°C coincide with above ground creeks and seeps. Step out sampling at seeps and creeks was performed following findings from the random, pre-determined location that coincided with the outflow locations of the seeps. 6.3 Additional Onsite Characterization 6.3.1 Objectives In conjunction with the Black Creek Aquifer characterization, additional onsite characterization was performed to refine the understanding of site lithology and assess the extent and magnitude of TR0795 28 October 31, 2019 PFAS impacts in different stratigraphic layers to support flow modeling. Several wells were installed to assess conditions adjacent to nearby surface water bodies (such as Willis Creek) and may serve a dual purpose as performance monitoring wells for the CAP. Additional wells were installed to assess vertical and horizontal hydraulic gradients. Soil samples were collected for lithologic classification and PFAS concentrations in unsaturated soils. Groundwater samples were collected from these new wells to assess PFAS concentrations. 6.3.2 Methods The new wells were installed across the site to supplement the existing monitoring well network. Seven of the 14 wells were installed along the Old Outfall 002, Willis Creek, Georgia Branch Creek and the Cape Fear River to monitor groundwater quality adjacent to these surface water bodies and facilitate the collection of baseline PFAS concentrations (as per the requirements of paragraph 16 (c) of the CO). The remaining seven wells serve to delineate the horizontal and vertical distribution of PFAS in groundwater, both up- and down-gradient of the manufacturing areas and refine current understanding of site lithology (Figure 6-3). Wells were installed with sonic drilling methods as described in Appendix A, and outer override casing was used to prevent cross formational flow between aquifer units during installation. Shallow wells were typically screened at depths between 11 to 75 ft bgs that correspond with the perched zone or the surficial aquifer. Deep wells were screened between 44 to 146 ft bgs in the Black Creek Aquifer generally consisting of medium grained sands with higher permeability. Well depths below ground surface to the Black Creek Aquifer vary considerably since some wells were installed adjacent to the Cape Fear River and some wells were installed at the top of the Bluff in the facility. Borings for the deep wells were advanced at least 5 ft into the underlying Upper Cape Fear confining unit to assess the spatial extent and competence of this formation across the site. These borings were then backfilled with bentonite and sand prior to well installation, after an appropriate hydration period specified by the bentonite product manufacturer. Well construction information is summarized in Table 6-3. Lithologic logs and well construction forms are provided in Appendix D. Following well installation, wells were developed and sampled as outlined in Appendix A. Wells PIW-2D and PIW-4D had persistent elevated turbidity above 50 NTUs during development. These wells are being redeveloped and sampled again. This effort is anticipated to be completed in November 2019. 6.3.3 Results Locations of the onsite monitoring wells are shown in Figure 6-3. Soil boring logs and well construction logs are provided in Appendix D. Seventeen unsaturated soil and groundwater samples collected during and after the paired well installation for the onsite Black Creek Aquifer characterization and the additional onsite characterization were analyzed for chemical parameters under the Table 3+ SOP Method and EPA Method 537 Mod; these results are discussed in detail TR0795 29 October 31, 2019 in sections below. In addition, 44 representative samples from each lithologic unit encountered during drilling were analyzed for physical parameters and are also described in Section 7. 6.4 Offsite Characterization 6.4.1 Objectives The primary objective of the offsite characterization was to assess the extent and magnitude of PFAS in soil and groundwater and geological and hydrogeological features that may influence movement, chemical or physical character of the contaminants and to facilitate comparison with results obtained from private wells being sampled as part of Paragraph 21. Objective tasks for this activity included: • installation of ten paired piezometers to assess vertical and horizontal hydraulic gradients; • collection of up to two soil samples from each boring for a total of 23 samples for PFAS and physical soil characteristics; and • collection of groundwater sample from each of the twenty wells to assess PFAS concentrations. 6.4.2 Methods A total of ten pairs of wells were installed at offsite locations chosen to assess lithology and geochemistry conditions at locations relatively close to the Site and delineate potential offsite impacts. Four pairs were installed in Bladen County, one pair in Robeson County, and five pairs in Cumberland County. Right-of-Way Encroachment Agreements were negotiated with each county. Well permits and encroachment agreements are included in Appendix F. At each location, one shallow monitoring well was installed to target the surficial aquifer and a second deeper monitoring well to target the Black Creek Aquifer. The deeper of the two borings was advanced first to guide selection of well depth. Where appropriate, methods used for the offsite characterization were identical to those used for the drilling programs implemented during this Site assessment. Wells were installed with sonic drilling methods as described in Appendix A, and outer override casing was used to mitigate cross formational flow between aquifer units during installation. Following well installation, wells were developed and sampled as outlined in Appendix A. Wells Bladen Bladen-3D and Cumberland- 2D had persistent elevated turbidity above 50 NTUs during development. These wells are being redeveloped and sampled. This effort is anticipated to be completed in November 2019. 6.4.3 Results Locations of the 20 offsite monitoring wells are shown in Figure 6-6 with additional information provided in Table 6-3. Soil boring logs and well construction logs are provided in Appendix D. TR0795 30 October 31, 2019 Shallow wells were screened at depths between 5 to 30 ft bgs that correspond with the surficial aquifer stet. Deep wells were screened between 22 to 75 ft bgs in the Black Creek Aquifer consisting of medium grained sands with higher permeability. Eleven offsite soil samples and 19 groundwater samples were analyzed and reported for chemical parameters under Table 3+ SOP Method and EPA Method 537 Mod. In addition, 13 representative samples from Surficial and Black Creek Aquifers encountered during drilling were analyzed for physical parameters and are also described in Section 7. TR0795 31 October 31, 2019 7. SOIL CHARACTERIZATION SUMMARY 7.1 Lithology As described in Section 3, the Site is within the Coastal Plain Physiographic Province, which consists of a wedge of sedimentary deposits ranging in age from Cretaceous to Recent. Paleozoic metamorphic and igneous rocks underlie these deposits. Lithologies that underlie the Site include, from stratigraphic top to bottom, (1) the Perched Zone, (2) Surficial Aquifer, (3) Black Creek Confining Unit, (4) Black Creek Aquifer, and (5) Upper Cape Fear Confining Unit. The Black Creek Formation and surficial deposits are the principal potable water aquifers in the area. Beneath the manufacturing area, the uppermost sand unit, the Surficial Aquifer, is locally bisected by a clay lens. This clay lens gives rise to the Perched Zone which is limited in lateral extent to the east, north and south by local topography and terminates to the west of the manufacturing area, the Perched Clay Unit. The depth to the top of the clay lens is approximately 15 to 18 ft bgs. The clay lens becomes thinner moving west across the manufacturing area and ranges from approximately one foot to approximately 19 ft thick. Based on the lithology logged during onsite investigations, a fine- to medium-grained sand unit with thin discontinuous interbedded silt/clay lenses underlies the Perched Zone and Perched Clay Unit. The sand extends to a depth of approximately 65 ft bgs (elevation of +80 ft MSL). The saturated portion of this unit has been identified as the Surficial Aquifer. Below the Surficial Aquifer lies the Black Creek Confining Unit, which is characterized as lignitic clay with thin beds and laminae of fine-grained micaceous sand as well as thick lenses of cross- bedded sand. Locally, the upper portion of the Black Creek Confining Unit locally contains glauconitic, fossiliferous clayey sand lenses. The elevation of this unit is approximately +65 to +77 ft MSL. Beneath this confining unit is the Black Creek Aquifer, which is between 8 to 20 ft thick and encountered at depths between 80 and 100 ft bgs (elevation of approximately +45 to +65 ft MSL) at the top of the bluff. Beneath the Black Creek Aquifer is a massive dense clay (with minor sand) that has been identified as the Upper Cape Fear Confining Unit. This unit was not fully penetrated at the Site during this investigation; however, it extends to at least 200 ft bgs (elevation of -55 ft MSL) and is over 30 ft thick. Prior to this investigation, knowledge of offsite lithology was limited to regional geologic overviews (NCGS, 1985; Farrell et al., 2001; Heron et al., 1968; Trapp and Meisler, 1992; Winner and Coble, 1996). A hydrogeologic framework database from the NCDEQ Groundwater Management Branch of the Division of Water Resources (DWR) was utilized to review well construction logs, geophysical logs, and aquifer characteristics of private and public water supply wells in Bladen, Robeson, and Cumberland Counties. However, besides two on Site USGS wells, this database revealed no information for wells in the immediate vicinity of the Site. TR0795 32 October 31, 2019 7.2 Background The objectives of the additional characterization efforts were to improve the understanding of lithology and to assess the vertical and spatial extent and magnitude of PFAS impacts. As part of the field programs described in Section 6, soil samples collected during drilling activities were analyzed for physical soil matrix properties and PFAS. The physical properties characterized include bulk density, particle size distribution, Atterberg limits (which describe the water content of fine-grained materials), specific gravity, porosity (calculated), and moisture content. These parameters are used to estimate the hydraulic conductivity and to refine the lithological description of onsite and offsite hydrogeologic units. Soil samples were also analyzed for pH and for organic carbon content as these parameters may influence the distribution and mobility of PFAS in the subsurface. 7.3 Analytical Methods Soil samples were analyzed for physical parameters by the following methods: • Method D2937 – Bulk Density; • Method D422 – Particle Size Distribution; • Method D4318 – Atterberg Limits; • Method D854 – Specific Gravity; • Porosity Calculation using Methods D854 and D2937; and • Moisture. Soil samples were analyzed for chemical parameters by the following methods: • Table 3+ Laboratory Standard Operating Procedure (SOP); • EPA Method 537 Mod (Laboratory SOP); • Method 9045D – Corrosivity (pH); and • Walkley Black FOC. Analytes reported under these PFAS-specific methods are listed in Table 2-1. 7.4 Results 7.4.1 Onsite Results Physical Parameters The physical parameters and lithological classification for onsite soils are provided in Table 7-1. Laboratory analytical reports and data review narratives are provided in Appendix G. In total, 44 samples from 22 onsite locations have been analyzed for physical parameters. These results include representative samples from the Upper Cape Fear Confining Unit, the Black Creek Aquifer, the Black Creek Confining Unit, the Surficial Aquifer, the Perched Clay, the Perched Zone, and the Floodplain Deposits near the shore of the Cape Fear River. The laboratory- TR0795 33 October 31, 2019 determined grain size distribution and Atterberg limits (e.g., liquid limit and plastic limit) were used to refine the field classification of each formation using the Unified Soil Classification System (USCS). In general, the lower permeability confining units encountered at the Site (Upper Cape Fear Confining Unit and the Black Creek Confining Unit) consist of high plasticity (fat) clay. Key characteristics that distinguish the Black Creek Confining Unit from the Upper Cape Fear Confining Unit are (1) darker color, (2) higher water content and higher plasticity, and (3) higher organic content in the Black Creek Confining Unit. Field descriptions of these formations consistently characterize the Black Creek Confining Unit as medium to dark gray compared with lighter gray colors observed in the Upper Cape Fear Confining Unit. Laboratory results indicate that both the liquid limit and the plastic limit of soil samples collected from the Black Creek Confining Unit (average values of 84 and 36, respectively) are significantly higher than those in the Upper Cape Fear Confining Unit (average values of 59.0 and 26.0). The fraction of organic carbon measured in Black Creek Confining Unit is approximately one order of magnitude higher than that in the Upper Cape Fear Confining Unit [average values of 0.019 0.0424 grams per gram (g/g) and 0.0034 g/g respectively]. This higher organic carbon content is consistent with lithologic descriptions of this formation with thinly bedded organic material and lignite seams. The Perched Clay that intermittently underlies the manufacturing area footprint has an average organic carbon fraction of 0.011 g/g. The liquid limit and plastic limit of the Perched Clay is similar to the Black Creek Confining Unit (average values of 90 and 39, respectively). Empirical studies are currently in progress to assess PFAS fate and transport characteristics as described in Section 4.1.1. Measured soil pH ranged from approximately 4 to 6.8 standard units across all the hydrogeologic units. Measured soil pH is generally acidic onsite (less than pH of 6) with slight differences in average pH values measured between stratigraphic units. For instance, average pH of the Perched Zone, Surficial Aquifer and Black Creek Aquifer vary between 4.8 to 5.5 while the low permeability Perched Clay and Black Creek Confining Units vary between 4.2 to 4.5. Variations in soil pH are generally a function of the soil mineral composition and weathering, typical of warm, humid environment in North Carolina. The higher permeability aquifer units encountered at the Site (Black Creek Aquifer and Surficial Aquifer) are both characterized as poorly graded sand with silt and clay. With the exception of four samples collected from interbedded clay within the aquifer units (at PW-05, PW-07, PW-10 and PW-12), both units consist of 60-95% sand with lower organic carbon content (typically less than 0.01 g/g) than low permeability confining units. Parameters such as percent moisture, porosity, density and void ratio are similar between the two units. The color of the Black Creek Aquifer is typically described as medium to dark gray (compared with white to tan or orange/red/light brown of the Surficial Aquifer), and color may be used as a distinguishing characteristic in the absence of the Black Creek Confining Unit separating these units. Physical parameters measured in samples from the Perched Zone are similar to those from the Surficial Aquifer. For example, the Perched Zone is predominantly consisted of 73-95% sand with 5-27% TR0795 34 October 31, 2019 of fine-grained material (silt and clay combined), and similar organic content (typically less than 0.01 g/g). Samples from the Floodplain Deposits, near the Cape Fear River, exhibit more variable grain size distributions and consist of both fine-grained material (such as clay with silt observed at PIW-06) and beds of coarse-grained material (such as sand with fine to medium gravel observed at PIW- 03). This variable composition supports the range of HPT/EC response measurements described in Section 6.1.3. With exception of PIW-3, the percentages of fine-grained material in samples collected from the Floodplain Deposits are 3 to 7 times higher than those in samples collected from the Surficial Aquifer. Similarly, the Floodplain Deposit material is consistently finer-grained than the Black Creek Aquifer. The grain size analysis described above was also used to estimate the hydraulic conductivity of each hydrogeologic unit at the Site. Soil porosity, density, and grain size distribution can be used to calculate the hydraulic conductivity using several published methods (as incorporated into the open source software HydrogeoSieveXL version 2.1; Devlin, 2015). While this tool is intended as a quick yet relatively comprehensive estimate of hydraulic conductivities, these estimates compare well to conductivities determined from HPT profiling and onsite slug tests. The geometric means of estimated hydraulic conductivities for each water-bearing formation are as follows: - Perched Zone is 9.6 ft/day; - Floodplain Deposit is 5.4 ft/day; - Surficial Aquifer is 24.1 ft/day; and - Black Creek Aquifer is 39.6 ft/day. Samples from the Perched Zone and Surficial Aquifer with greater than 10% clay were excluded as outliers from the geometric mean hydraulic conductivity estimates. Samples collected from the bottom of the Black Creek Aquifer displayed a higher fraction of fine-grained material (greater than 10% sum of silts and clays) and a corresponding lower geometric mean hydraulic conductivity estimate of 8 ft/day. Visual observations of cores and analytical results of physical parameters indicate that this zone is likely a transition zone between the Black Creek Aquifer and the underlying Upper Cape Fear Confining Unit, where a fining-downward sequence of grain size distribution is observed. This transition is consistent with an interstratified layer of fine-grained sands of the Black Creek Formation or upward-fining facies sequences of the Cape Fear Formation (Farrell et al., 2001). Hydraulic conductivities for the Perched Clay, Black Creek Confining Unit, and Upper Cape Fear Confining Unit were all less than 1.0 foot/day (as expected for low permeability clay units). Documentation and references for each model, input parameters, and estimated hydraulic conductivities are provided in Appendix H. TR0795 35 October 31, 2019 Chemical Parameters The analytical results for onsite soils are summarized in Tables 7-2 and 7-3. In total, 17 samples of onsite soil as well as several duplicate and QA/QC samples have been analyzed for Table 3+ PFAS and EPA Method 537 Mod analytes. Soil samples were collected for PFAS analysis from the top and bottom of the vadose zone as determined in the field; in locations where the water table was relatively shallow, only one sample was collected from the bottom of the vadose zone. The objective was to collect samples from the unsaturated zone, however, samples from PW-12 and PW-15 appear to be collected at depths that correspond to saturated soils. Figure 7-1 plots on a map the locations and results of detected compounds for unsaturated zone soil samples. Unsaturated zone soils are a transmission pathway and potential secondary source of PFAS to underlying groundwater in the saturated zone. Groundwater results are discussed later in Section 9. For the 17 samples (16 parent samples and one duplicate) the following PFAS detections were observed: - 9 of 17 samples analyzed had detections of HFPO-DA; - 2 of 17 samples analyzed had detections of another Table 3+ PFAS; and - 1 sample analyzed had other PFAS detections (perfluoropentanoic acid at PW-10, 8-8.5 ft bgs) Concentrations of HFPO-DA ranged from 570 nanograms per kilogram (ng/kg) (PW-10, 3.5-4 ft bgs) to 28,000 ng/kg (PW-10, 8-8.5 ft bgs) (Figure 7-1). The reporting limits for other Table 3+ analytes are higher than HFPO-DA (250 ng/kg vs. 1000 ng/kg) potentially influencing the frequency of detection of these compounds. The Table 3+ compounds that were detected in both onsite soils at PW-01 and PW-10 include PFMOAA, PFO2HxA, PMPA, and PFO5DA. PFAS compounds were not detected above reporting limits in any equipment blank samples collected during the onsite soil characterization (Table 7-3). The water used during drilling activities was also sampled and analyzed for Table 3+ and EPA Method 537 Mod analytes. Detections for PFAS compounds from this water source were typically less than 5 ng/L. Concentrations of HFPO-DA and PMPA were 17 and 130 ng/L, respectively. These concentrations are unlikely to have resulted in a false positive in soil results since (a) the drill water had limited if any contact with the soil core and during sonic drilling care was taken to limit the introduction of excess water, (b) these concentrations are below the reporting limit for these compounds in soil since one liter of water is in contact with over one kilogram of soil, and this would lead to concentrations at least an order of magnitude less than the reporting limit, and (c) onsite groundwater concentrations are consistently higher than these values. TR0795 36 October 31, 2019 7.4.2 Offsite Analytical Results Physical Parameters The physical parameters and lithological descriptions for offsite soils are provided in Table 7-4. Thirteen soil samples from the Surficial and Black Creek Aquifers at ten different locations across three counties were analyzed for physical parameters (Table 7-4 and Figure 4-2B). This includes four locations in Bladen County, five locations in Cumberland County, and one location in Robeson County. The laboratory-determined grain size distribution and Atterberg limits (e.g., liquid limit and plastic limit) were used to estimate hydraulic conductivity and to refine the field classification of each formation using the Unified Soil Classification System (USCS). The offsite samples from the Surficial and Black Creek Aquifers exhibit similar characteristics to those collected onsite and are characterized as silty to clayey poorly graded sands. Offsite soil samples from the Surficial and Black Creek Aquifers from both aquifers contain greater than 75% sand with 1-23% fines. The estimated hydraulic conductivities offsite are 8 ft/day in the Surficial Aquifer, and 21 ft/day in the Black Creek Aquifer Chemical Parameters The soil analytical results for offsite soils are summarized in Table 7-5 and 7-6. Eleven soil samples from the vadose zone at ten offsite locations and associated duplicate and QA/QC samples were analyzed. These include four locations in Bladen County, one location in Robeson County and five locations in Cumberland County (Figure 6-6). Appendix G contains the laboratory reports and data review narratives for the offsite soil samples. No PFAS compounds were detected above the associated reporting limits in the six offsite soil samples. One 537 Mod compound, perfluorobutane sulfonic acid, was detected at 340 ng/kg (i.e. 0.34 parts per billion [ppb]) in the duplicate sample, DUP-1-081419, which was collected in conjunction with Bladen-1S-081419 between 6 and 7 ft bgs. No detection of perfluorobutane sulfonic acid was observed in the sample, though the reporting limit for this analysis (420 ng/kg) was slightly elevated compared to reporting limits (200 ng/kg) of other samples analyzed. This detection is within 5-times the reporting limit. In a field blank sample collected at Bladen 2S perfluorododecanoic acid (also a 537 Mod compound) was detected at 0.0025 ng/L, just above the reporting limit (0.002 ng/L). No Table 3+ PFAS compounds were detected. TR0795 37 October 31, 2019 8. CAPE FEAR RIVER AND SEDIMENT CHARACTERIZATION SUMMARY 8.1 Cape Fear River The Cape Fear River is a dynamic system. River water levels vary spatially and over time. Figure 8-1 presents a summary of the river water levels measured for the period from January 1, 2014 to September 10, 2019 for at three USGS river gauging stations upstream, close to and adjacent the Site. Over 75% of the recorded Cape Fear River water levels at each location are within a range of 10 ft. Cape Fear River water levels experience the most variation during precipitation events. For example, during Hurricane Florence in Fall 2018, maximum river water level of 67 ft NAVD88 was observed adjacent to the Site where the median river water level is approximately 30 ft NAVD88. The chemical and spatial distribution of PFAS in the Cape Fear River has been evaluated and reported by Chemours over six separate field mobilization events and described in the Assessment of the Chemical and Spatial Distribution of PFAS in the Cape Fear River Report (Geosyntec, 2018a) and the Seeps and Creeks Investigation Report (Geosyntec, 2019a). Together these programs observed that PFCAs and PFSAs (i.e. PFOA, PFOS and similar compounds) were present in the Cape Fear River at similar concentrations upstream and downstream of the Site indicating that the Site did not contribute measurably to the concentration of these compounds in the Cape Fear River. Meanwhile, Table 3+ PFAS were detected in the Cape Fear River at highest concentrations adjacent to the Site where seeps, groundwater and the Old Outfall flowed into the Cape Fear River before the river became more well mixed downstream as described in the Mass Loading Model (Geosyntec, 2019f). In the data collected to date HFPO-DA, has remained below 140 ng/L since mid-October 2017. 8.2 Cape Fear River Sediments Pursuant to paragraph 11.2 of the CO Chemours submitted to NCDEQ on August 21, 2019 Sediment Characterization Plan (Geosyntec, 2019b). This investigation to characterize Cape Fear River sediment PFAS concentrations will be completed once NCDEQ provides comments and approval. TR0795 38 October 31, 2019 9. GROUNDWATER CHARACTERIZATION SUMMARY 9.1 Overview of Site Hydrogeology The hydrogeology of the Site includes the Perched Zone and two aquifers; the Surficial Aquifer and the Black Creek Aquifer (Parsons, 2018b). Potentiometric surface maps for all three zones for data collected during a synoptic event on October, 15 2019 are plotted in Figures 9-1 through Figures 9-3. The Perched Zone is aerially limited and generally located above the top of a discontinuous clay layer. The extent of the Perched Zone is controlled by topography and the lateral extent of the clay lens. Based on recent investigations and on-going evaluations, Perched Zone water levels may have been influenced by seepage of water through the previously unlined sedimentation basins and infiltration of non-contact cooling water from previously unlined drainage ditches. Groundwater elevations in December 2017 indicated a localized groundwater mound was observed around wells NAF-04 and NAF-01 (Parsons, 2018b). In 2018, the sedimentation basins and Cooling Water Channel were lined. Data from 2019 (Figure 9-1) show the groundwater mound is still present but is expected to dissipate over time. This localized groundwater mound was still present in October 2019. The Surficial Aquifer is a shallow unconfined aquifer that underlies the Perched Zone. Surficial Aquifer water levels indicate that groundwater flow is generally toward the Cape Fear River. The Black Creek Aquifer underlies the Surficial and is mostly separated by the Black Creek confining unit, a clay layer. This clay layer is not fully confining as geological and geochemical data indicate water and PFAS transfer has occurred from the Surficial Aquifer to the Black Creek Aquifer. The Black Creek Aquifer is the uppermost identified regional hydrogeologic unit. The Black Creek Aquifer is typically under confined conditions and groundwater elevations indicate flow toward the Cape Fear River. The Cape Fear River stage is lower than the top of the Black Creek Aquifer, indicating that the Cape Fear River is likely a discharge boundary for the Black Creek Aquifer. Below the Black Creek Aquifer is the Upper Cape Fear Confining Unit, a regional hydrogeologic clay unit. The well log for BCA-03 indicates that the clay layer likely associated with this unit is over 60-ft thick. Historic drilling logs for deep wells located onsite (between 170 to 320 ft deep) indicate that this clay unit may be up to 100 ft thick. NC DWR wells located on the western part of the Site (near NC highway 87) with high resolution geophysical data have characterized the Upper Cape Fear Confining Unit to be between 75 ft to 120 ft thick. Measured groundwater elevations in the Black Creek Aquifer are significantly higher than the Upper Cape Fear Aquifer (80 to 100 ft groundwater elevation difference), as measured at the co-located NC DWR wells between October 2018 and July 2019. These results demonstrate minimal hydraulic connection between the Black Creek Aquifer and the Upper Cape Fear Aquifer suggesting the Upper Cape Fear Confining unit is an aquitard. Groundwater in the Surficial and Black Aquifers at the Site flows towards the bluff and the Cape Fear River; eastern part the Perched Zone also migrates toward the bluff. As groundwater reaches the bluff above the Cape Fear River, it is expressed at ground surface as seeps. The confluence of the “seeps” four channelized flows of expressed groundwater towards the river, designated as TR0795 39 October 31, 2019 Seeps A, B, C, and D. Chemours identified and investigated seeps at the Site reported results in the Seeps and Creeks Investigation Report (Geosyntec, 2019a) on August 26, 2019; a summary of the report’s conclusions follows. Over three field events (February, May and June 2019), field teams identified four seeps, of varying size and reach discharging to the Cape Fear River. These four seeps (A to D), Old Outfall 002 and Willis and Georgia Branch Creeks were gauged for flow, and samples were collected to assess PFAS concentrations. Sampling was conducted under wet and dry conditions. In total, 94 discrete water samples were collected from the seeps and creeks for PFAS analysis. A temperature survey of Old Outfall 002 was conducted to evaluate temperature variations as an indicator for groundwater upwelling and indicated discharge along the banks of the Old Outfall 002 at many locations and a few regions of sub-aqueous groundwater discharge confirming that Old Outfall 002 is primarily groundwater fed. Seeps A and B have larger reaches compared to Seeps C and D and they were observed to have higher flow rates compared to Seeps C and D. Flow rates at the mouths of Seeps A and B were 60 to 110 GPM and 50 to 90 GPM, respectively, determined by salt dilution gauging, while flow rates at the mouths of Seeps C and D were 10 to 15 GPM and 20 to 50 GPM, respectively. Flow rates in the seeps were variable between February, May, and June. Flow rates in Willis Creek were highest in June compared to February and May, which is attributed to the precipitation observed prior to the June Event compared to the dry events in February and May. 9.2 Onsite Groundwater 9.2.1 Hydrogeology Groundwater elevations were calculated for onsite wells screened in the Perched Zone, Surficial Aquifer and Black Creek Aquifer from a single synoptic water level measurement survey performed on 15 October 2019 (Table 9-1). Groundwater elevations calculated from the Site-wide synoptic water levels in October 2019 were used to develop potentiometric maps for the Perched Zone, Surficial Aquifer and Black Creek Aquifer (Figures 9-1, 9-2 and 9-3). Similar to Perched Zone groundwater elevations discussed in the Additional Site Investigation Report (Parsons, 2018b), a localized groundwater mound was also observed near NAF-01 and NAF-04 in October 2019 (Figure 9-1). Groundwater elevations infer groundwater will flow radially away from the groundwater mound. Groundwater in the Perched Zone appears to be controlled by topography and the lateral extent of the clay lens. Perched Zone groundwater elevations are also shown to overlay with topographic contours and individual seeps that were identified in the Seeps and Creeks Investigation (Geosyntec, 2019a; Figure 9-1). This comparison shows that individual seeps identified in the upstream reaches of Seep A and Seep B are typically located in areas where Perched Zone groundwater elevation intersect topographic contours (e.g., 135-foot topographic elevation contour; Figure 9-1). Groundwater elevations in Surficial Aquifer wells (Figure 9-2) indicate groundwater flow is likely to be east-northeast towards both Willis Creek and Cape Fear River, and at the southern end of the TR0795 40 October 31, 2019 Site towards Old Outfall 002. During the seeps and creeks investigation (Geosyntec, 2019a), multiple seeps were observed in the Old Outfall at elevations and sections corresponding to the Surficial Aquifer. Comparison of Surficial Aquifer groundwater elevations with topographic contours suggest that some of the individual seeps identified along the middle reaches of Seep A and Seep B (e.g., 90-foot topographic elevation contour at Seep B) are likely to originate from the Surficial Aquifer (Geosyntec, 2019a; Figure 9-2). Groundwater flow in the Surficial Aquifer towards the south of the Site is anticipated to flow to and discharge to the Old Outfall and indirectly to the Cape Fear River based on observed seeps in the Old Outfall and the presence of Seep B. Groundwater flow in the Black Creek Aquifer is predominantly easterly towards the Cape Fear River (Figure 9-3) similar to groundwater elevations discussed in the Additional Site Investigation Report (Parsons, 2018b). Minor groundwater flow components to the northeast, towards Willis Creek (near SMW-12) and southeast, towards Old Outfall (east of PW-11 or Glengerry Road) are also likely. However, based on available lithology, the Black Creek Aquifer is likely to be in direct connection with only a portion of Willis Creek, near SMW-12, and a section of the Old Outfall in its lower reaches near the Cape Fear River. Vertical gradient assessment described below assess whether these sections are likely to be recharge or discharge boundaries. Similar to the Additional Site Investigation Report (Parsons, 2018b), the Cape Fear River stage was lower than the top of the Black Creek Aquifer on 15 October 2019, indicating that the Cape Fear River is likely a discharge boundary for the Black Creek Aquifer. Groundwater elevations from synoptically measured water levels at co-located wells were used to compute vertical hydraulic gradients between various hydrogeologic units (Table 9-2, Figure 9-4). Generally, positive vertical gradients, representing potential downward flow, are observed at wells located on top of the bluff screened in the Perched Zone and Surficial Aquifer. Magnitude of calculated positive vertical gradients appear to be higher near NAF-08A and NAF-08B, where a localized groundwater mound is located. While positive vertical gradients were calculated for wells located on top of the bluff, negative gradients, representing potential upward flow were measured between wells located along the Cape Fear River bank (Figures 9-4). Negative vertical gradients and potential upward flow are calculated between the Floodplain deposits and Surficial Aquifer, and Floodplain deposits and Black Creek Aquifer. The magnitude of calculated negative gradients is much lower than calculated positive vertical gradients. Vertical gradients between the Surficial Aquifer and Black Creek Aquifer appear to be positive or potentially downward in areas where the Black Creek Confining Unit is not extensive (e.g., 1 foot thick at PIW-9S and PIW-9D), while a negative or potentially upward gradient is observed in areas where the Black Creek Confining Unit is extensive (e.g., 20 ft thick at PIW-10S and PIW-10DR). One exception to this was observed at the Surficial Aquifer and Black Creek Aquifer well pair PW-05 and BCA-04, where a negative vertical gradient representing potential upward flow was observed. This well pair is located on the western portion of the Site, where a potential paleo- erosional feature may likely have eroded portions of the Surficial Aquifer and the Black Creek Confining Unit, further described in Section 10. Vertical gradients will continue to be evaluated in the future. TR0795 41 October 31, 2019 The distribution of downward gradients on the plateau area of site while upwelling gradients are present at the river is consistent with expectations. Onsite, recharging rainfall leads to downward gradients. The Cape Fear River is a regional groundwater discharge location and therefore upward gradients that lead to upwelling, i.e. discharge, is expected immediately adjacent the river. Notably, the vertical gradient between PW-11, a Black Creek Aquifer well, and the Old Outfall 002 where high-resolution survey data existed of the Old Outfall elevation, was calculated (Table 9-2). The calculation indicated a positive gradient – i.e. downward flow was possible. At this specific location, portions of the Old Outfall 002 are interpreted to be underlain by the Black Creek Confining Unit (Figure 6-1 and Figure 9-4). This finding suggests, that in its lower reaches near the Cape Fear River the Old Outfall 002 may potentially recharge groundwater in areas where the Old Outfall is in contact with the Black Creek Aquifer. A high-resolution topographic survey assessment along Willis Creek is currently ongoing for a similar assessment of vertical gradients. The influence of groundwater gradients will be further assessed in the numerical groundwater model being prepared to support the selection of a remedial approach for the Corrective Action Plan due December 31, 2019 and with additional synoptic groundwater level measurements to be collected. 9.2.2 PFAS Concentrations The groundwater analytical results for 96 onsite wells sampled from June 2019 through September 2019 are presented in Table 9-3. Laboratory reports and data review narratives for the onsite groundwater data are provided in Appendix G. Historical PFAS groundwater analytical results are provided in Appendix I. For multiple wells, the groundwater samples reported here are from the first time these wells have ever been sampled. Nine of these wells had elevated turbidity during development, which may have affected the results (Section 6.3). These newly installed wells with elevated turbidity will receive additional development and be re-sampled. Therefore, the observations from these data will be compared to future sampling events. In general, the highest PFAS concentrations are present in areas of known sources and decrease with distance in the direction of groundwater flow. The PFAS compounds with the highest frequency of detections and highest concentrations are perfluoromethoxypropyl carboxylic acid (PMPA), perfluoro-2-methoxyaceticacid (PFMOAA) and HFPO-DA, and other Table 3+ compounds. Concentrations of PMPA, PFMOAA, and HFPO-DA at Site are plotted for all the Perched Zone, Surficial Aquifer Zone and Black Creek Aquifer Zone wells in Figures 9-6 through 9-8. Total Table 3+ PFAS concentrations per zone are plotted in Figures 9-9 through 9-11 alongside Total Table 3+ PFAS concentrations for surface water samples collected in February 2019 for Willis Creek, Seeps A, B, C, and D, and the Old Outfall 002. For other PFAS compounds, more than half of the compounds analyzed were not detected in any samples, and the other compounds were detected at concentrations orders of magnitude lower than the Table 3+ compounds. TR0795 42 October 31, 2019 PMPA, PFMOAA and HFPO-DA Distributions As discussed above, PMPA appears to be a representative marker for aerial deposition. PMPA concentrations are highest near the Monomers IXM Area, the emissions source to air, and also a location of leakage from historical process water sewer lines (See Figure 9-6). Generally, the concentration of PMPA decreases with distance from the Monomers IXM Area. Meanwhile, PFMOAA most appears to be associated with releases from conveyance of process water along the terracotta pipe and then to the WWTP and Outfalls. Figure 9-7 shows that the highest PFMOAA concentrations are often adjacent or downgradient of the Monomers IXM Area and the conveyance pathway towards the Cape Fear River (Figure 4-1; 9-7). Notably, PFMOAA is at a relatively elevated concentration at Black Creek Aquifer well PW-11 close to the mouth of the Old Outfall 002. Here, the gradient analysis (Section 9.2.1) suggested the Old Outfall 002 was recharging groundwater. These two facts together suggest that the potential source of the elevated PFAS detections at PW-11 may be historical recharge of Old Outfall 002 water to groundwater prior to 2012 when the combined Monomers IXM process water containing PFAS was discharged to the Cape Fear River along with non-contact cooling water via the Old Outfall Channel. A contrast between PFMOAA and PMPA is how PMPA concentrations decrease more slowly and equally in all directions from the primary emission location to air, the Monomers IXM Area, while PFMOAA concentrations are elevated downgradient of release points, but upgradient are much lower, reflecting the behavior expected from a direct release to groundwater. Further, recent characterization results suggest downward migration of PFMOAA and other PFAS to the Black Creek Aquifer has occurred. This is described in more detail in Section 10 where the present geological interpretation based on recent borings is presented. Last, the distribution of HFPO-DA at Site shown in Figure 9-8 is intermediate to PMPA and PFMOAA reflecting that it has been present in multiple release pathways. Total Table 3+ PFAS Distributions The concentration of total Table 3+ PFAS in Site groundwater is higher by orders of magnitude compared to other PFAS detected at Site. The distributions of total Table 3+ PFAS for each zone: Perched Zone, Surficial Aquifer, and Black Creek Aquifer are plotted in Figures 9-6 through 9-9. Similar to the individual compounds, the highest concentrations of Total Table 3+ PFAS are detected near the Monomers IXM. The figures also show Total Table 3+ PFAS concentrations for Willis Creek, the Seeps and Old Outfall 002. These figures show a linkage between elevated perched zone and surficial zone concentrations and Seep and Old Outfall detections. Figure 9-9 also shows that floodplain deposit and Black Creek Aquifer groundwater Total Table 3+ PFAS concentrations are similar to seep concentrations suggesting that some of these observed PFAS in these wells may be infiltration of water expressed higher up the bluff face as seeps. The figures TR0795 43 October 31, 2019 also indicate downward infiltration of PFAS into the Black Creek Aquifer. This connectivity between the upper and lower units is further described in Section 10. PFAS Signatures to Assess Source Components PFAS were released from the facility via aerial deposition from stack emissions and process wastewaters. A method to assess the source of PFAS (aerial versus wastewater) present in the environment is referred to as a PFAS signature. This can be used to refine and connect observations of PFAS chemistry with insights for hydrogeological identified flow paths. Multivariate statistical methods, e.g., hierarchical cluster analysis (HCA), can used as a tool to identify PFAS signatures. Multivariate methods allow for the analysis of relationships between all compounds simultaneously, as opposed to traditional univariate methods, where each compound is evaluated individually. HCA, in particular, is a method that can identify common groups, i.e., clusters, of wells within a large data set based on their PFAS concentration compositions. HCA was used to evaluate the relative proportions of Table 3+ PFAS concentrations in onsite and offsite groundwater to identify: (i) groups of groundwater wells that share similar concentration compositions and (ii) the Total Table 3+ PFAS compounds driving these groupings. The results of the HCA were used to infer PFAS signatures across onsite and offsite areas and provide a line of evidence regarding different PFAS pathways. Technical details and additional outputs from the HCA are provided in Appendix J. The HCA identified four clusters of wells with differing Table 3+ PFAS compositions. The PFAS compositions across wells within a cluster were used to infer the following four PFAS signatures: • Aerial deposition PFAS signature characterized by a predominant proportion of PMPA; • Aerial deposition PFAS signature characterized by a mixture of PFAS compounds; • Combined process water PFAS signature characterized with a predominant proportion of PFMOAA; and • Combined process water PFAS signature characterized by a mixture of PFAS compounds. For each PFAS signature, the concentration compositions for a select number of wells are shown in Table 9-5. An expanded table with all wells is provided in Appendix J. The spatial distribution of these PFAS signatures are provided in Figure 9-11. There were 12 wells (four onsite wells and eight offsite wells) in the cluster representing the aerial deposition PFAS signature (predominant proportion of PMPA). PMPA accounted for 53% to 100% of the total Table 3+ concentrations in these wells; however, total Table 3+ concentrations were the lowest in these wells (Table 9-5; Figure 9-11). These wells were all screened in the Surficial and Black Creek Aquifers. The onsite wells (BCA-04, SMW-10, PW-09, and PW-12) are upgradient of the direct releases to soil and groundwater. The offsite wells are distant from TR0795 44 October 31, 2019 direct releases to soil and groundwater, and either hydraulically upgradient or hydraulically not connected to the Site. In the wells shown in Table 9-5, Bladen-2S and Bladen-2D, PMPA accounts for 100% of the total Table 3+ concentrations. This signature is also observed onsite upgradient of the direct releases to soil and groundwater. For instance, PW-12, a Black Creek Aquifer well, reflects the same pattern of PFAS signature as Bladen-2S and Bladen-2D. Additional sampling of newly installed wells will be completed to confirm patterns are representative of aquifer conditions. There were 50 wells (42 onsite wells and eight offsite wells) in the cluster representing the aerial deposition PFAS signature characterized by a mixture of PFAS compounds. This cluster of wells exhibits a more even distribution of Table 3+ PFAS concentrations compared to other clusters. Generally, PMPA is the highest concentration Table 3+ PFAS with HFPO-DA, PFO2HxA, PEPA and PFMOAA generally detected as well. This signature is referred to as an aerial signature since it and the aerial high PMPA signature are the only ones detected offsite. This aerial signature is also present onsite at highest concentrations close to the manufacturing facility where emissions to air occurred. However, this signature could also potentially be associated with historical process water release from historical underground process sewers. For instance, the vinyl ethers south manufacturing area is located in the southern portion of the Monomers IXM Area and is associated with PMPA, PEPA and HFPO-DA – three compounds that are key contributors to the aerial mixture of PFAS signature. There were 32 onsite wells in the cluster representing the combined process water PFAS signature characterized with a predominant proportion of PFMOAA. PFMOAA accounted for 49% to 77% of the total Table 3+ concentrations and total Table 3+ concentrations varied by orders of magnitude based on proximity to known sources, aquifer, and groundwater flow paths (Table 9-5; Figure 9-11). For example, the Perched Zone and Surficial Aquifer wells with predominant proportions of PFMOAA are within the Monomers IXM Area (NAF-02), Chemours Polymer Processing Aid Area (SMW-08B), and in areas where process water was historically conveyed to the Cape Fear River along the terracotta pipe (MW-24; MW-14D) or via Outfall 002 (MW-27; PIW-9S). Additionally, Black Creek Aquifer wells with predominant proportions of PFMOAA are generally near the Seeps (LTW-05, PW-15R) suggesting that downward and horizontal (groundwater flows from east to west in the Black Creek Aquifer) migration towards the river. There were 16 onsite wells in the cluster representing the combined process water signature characterized by a mixture of PFAS compounds. These wells follow the same trends as those above, except that HFPO-DA, PFMOAA, PFO2HxA, PMPA, and PEPA combined account for 53% to 100% of the total Table 3+ concentrations, which vary by orders of magnitude between the wells (Table 9-5; Figure 9-11). This signature where PFMOAA concentrations are not as high as in the other combined process water signature may have potentially resulted from mixing of combined process water releases with aerially deposited PFAS and/or mixing with other potential localized process water releases before the replacement of underground process water sewers (Section 4). TR0795 45 October 31, 2019 Across the Site, PFAS signatures are often a combination of different release mechanisms. The PFAS fingerprinting analysis may potentially be beneficial in providing a line of evidence to evaluate flow paths and groundwater mixing. 9.3 Offsite Groundwater As described in Section 6.4, offsite groundwater characterization included installing ten well pairs in Bladen, Cumberland and Robeson counties (Figure 6-6). Groundwater elevations computed for well pairs located in Bladen and Cumberland Counties generally indicate a higher groundwater elevation in the shallow well pair as compared to the deeper well pair, suggesting downward flow as expected outside of areas of groundwater discharge (Table 9-1, Figure 6-6). Shallow wells are screened in the Surficial Aquifer while deeper well screens are within the Black Creek Aquifer. These results suggest that potential downward groundwater flow is anticipated at these locations at the time of water level measurement (Table 9-1). Exceptions to this were observed at Bladen-4S/Bladen-4D, Cumberland-2S/Cumberland-2D, Cumberland-3S/Cumberland-3D and Robeson-1S/Robeson-1D, where a higher groundwater elevation was computed for the deeper well, suggesting a potential upward flow (Table 9-1). Upward flow is generally anticipated near groundwater discharge boundaries, which may include creeks and swamps. Bladen-4S/Bladen-4D, Cumberland-2S/Cumberland-2D and Cumberland- 3S/Cumberland-3D are installed near Harrison Creek, Cape Fear River and Cedar Creek, respectively while Robeson-1S/Robeson-1D is located between Little Marsh Swamp and Big Marsh Swamp, areas that. The groundwater analytical results for the offsite wells are presented in Table 9-5, except Bladen- 1S, which was dry at the time of sample collection. Appendix G contains the laboratory reports and data review narratives for the offsite groundwater data. In general, detection frequencies and concentrations are low in wells for most PFAS compounds. For Table 3+ compounds, seven out of the 20 parameters were not detected in any samples, while the other 13 were detected in at least one sample (Table 9-5). The most frequently detected Table 3+ compounds with concentration ranges that exceeded 10 ng/L included: • PMPA (eighteen samples detected) at concentrations that ranged from 9.2 ng/L to 330 ng/L; • PFO2HxA (thirteen samples detected) at concentrations that ranged from 1.3 J ng/L to 110 ng/L; • Byproduct 2 (PFESA-BP2) (twelve samples detected) at concentrations that ranged from 0.48 J ng/L to 14 ng/L; • PEPA (seven samples detected) at concentrations that ranged from 2.1 J ng/L to 110 ng/L; • PFMOAA (ten samples detected) at concentrations that ranged from 6.3 J ng/L to 39 ng/L; TR0795 46 October 31, 2019 • HFPO-DA (nine samples detected) at concentrations that ranged from 2.2 J ng/L to 190 ng/L; • PFO3OA (eight samples detected) at concentrations that ranged from 0.96 J ng/L to 18 ng/L; • PEPA (seven samples detected) at concentrations that ranged from 2.1 J ng/L to 110 ng/L; • Byproduct 4 (six samples detected) at concentrations that ranged from 1.9 J ng/L to 74 J ng/L; and, • R-EVE (four samples detected) at concentrations that ranged from 5.7 ng/L to 18 J ng/L. Spatial distribution of the six most frequently detected Table 3+ compounds in offsite wells are shown in Figure 9-12. For PFAS compounds analyzed by EPA Modified Method 537, 22 out of the 36 parameters (excluding HFPO-DA) were not detected in any samples, while the other 14 were detected in at least one sample. Spatially, the highest concentrations were observed at Bladen-1D (closest to the Site) and the lowest were observed at locations farthest from the Site following the primary and secondary wind directions along the west-southwest to east-northeast and south to north quadrants, respectively (Bladen-4S/D, Cumberland-1S/D, Cumberland-2S/D and Cumberland-5S/D; Figure 9-12). For instance, concentrations at Bladen-1D were the highest, particularly for PEPA (110 ng/L), PMPA (330 ng/L) and HFPO-DA (190 ng/L), whereas the concentrations at Cumberland-2S/D which is approximately 11 miles from the Site along the primary wind direction were either non-detect or an order of magnitude lower for these same compounds (Figure 9-12). Frequency of detections and concentrations are generally higher in Surficial Aquifer wells as compared to those screened in the deeper Black Creek Aquifer. For example, in Bladen-3S the concentrations of PEPA, PMPA, and HFPO-DA are 5.6 J ng/L, 39 ng/L, and 12 ng/L, respectively. Meanwhile in Bladen-3D the concentrations of PEPA, PMPA, and HFPO-DA are 2.1 J ng/L, 14 ng/L, and 2.2 J ng/L, respectively (Figure 9-12). Offsite Wells with relatively low concentration levels for Table 3+ PFAS may have been potentially influenced by some Table 3+ PFAS present in drilling water (Table 7-3). The same drilling water source from a Bladen County fire hydrant near the Site was used for onsite and offsite well drilling. This water had a detection of PMPA at 130 ng/L, HFPO-DA at 17 ng/L, PFO2HxA at 10 ng/L and PFESA-BP2 at 6.7 ng/L. Previous samples of drilling water had been non-detect for Table 3+ PFAS compound from this water source, but at reporting limits of 200 ng/L. All wells were developed to enhance the connection to the geological formation and reduce potential artifacts from well installation. Offsite wells, and recently installed wells onsite with PMPA detections below 200 ng/L or with non-detect PMPA results at reporting limits above 200 ng/L (PIW-4D, PW-12, PW-13) will be further developed and re-sampled to assess concentrations at these wells over subsequent events. TR0795 47 October 31, 2019 The HFPO-DA concentrations in offsite groundwater are generally within the range of HFPO-DA concentrations reported in offsite drinking water and decrease with increasing distance from the Site (Figures 4-2A and 4-2B). These trends will continue to be evaluated as more data is collected from the various ongoing sampling programs under the Consent Order. TR0795 48 October 31, 2019 10. SUMMARY OF CURRENT CONCEPTUAL SITE MODEL The Site is located in the Coastal Plain of North Carolina and is situated adjacent the Cape Fear River atop a bluff with a 100-foot elevation change to a floodplain area and the Cape Fear River. Willis Creek borders the Site to the north, which flows through an erosional channel and empties into the Cape Fear River. To the south is Georgia Branch Creek which also flows through erosional channels as it empties into the Cape Fear River. Onsite there are groundwater seeps where groundwater is expressed at surface and flows to the Cape Fear River. The largest of these groundwater-fed seeps is the Old Outfall 002, along with four seeps, A, B, C and D located on the bluff slope facing the Cape Fear River. 10.1 Geology and Hydrogeology The geology at the Site consists of sands and clays. The geology and land use at the Site have influenced the hydrogeology of the Site. The geology of the Site is depicted in a series of cross sections identified in Figure 10-1 and presented in Figures 10-2 through 10-6. The list below describes geological features at Site from surface downward: 1. Perched Zone. The Perched Zone is a relatively thin, spatially limited layer of groundwater present in silty sands to a depth of about 20 ft bgs (Figures 10-2 to 10-6). Groundwater in the Perched Zone is recharged through precipitation onsite, and in the past, has received enhanced infiltration through unlined ditches and sedimentation ponds – these features have since been lined. Groundwater flows radially away from groundwater mounds in the Perched Zone. This leads to groundwater discharge to the east at seeps on the edge of the bluff, to the south toward the Old Outfall 002 and to the north and to the west downwards through the geological sequence towards the Surficial and Black Creek Aquifers. 2. Perched Clay Unit. The Perched Clay Unit gives rise to the Perched Zone as it presents a barrier to direct downward groundwater infiltration. The Perched Clay is spatially limited at the Site. To the north it pinches out. To the east and south it outcrops along the bluff face. To the west it terminates and becomes absent (Figure 10-6). In cross sections along the Site and observations of grainsizes and lithologic contact elevations from the boring logs suggest an erosional feature in the western portion of the geology underlying the manufacturing areas. This erosional surface, described later in this list, is interpreted to have eroded the Perched Clay Unit enabling downward migration of groundwater off the western edge of the Perched Zone. 3. Surficial Aquifer. The Surficial Aquifer is an unconfined silty sand aquifer lying atop the Black Creek Confining Unit and is present beneath the Perched Clay Unit. Groundwater in the Surficial Aquifer flows towards the bluff faces at the Site – It flows both north, east and west toward surface water bodies (Willis Creek, Seeps, Old Outfall 002) and discharges into them as seeps. The Surficial Aquifer is interpreted to be in contact with the Black Creek Aquifer in places due to an erosional feature. This feature is labeled on the cross sections and is interpreted to have enabled downward cross formational groundwater flow. TR0795 49 October 31, 2019 4. Black Creek Confining Unit. The Black Creek Confining Unit is a layer of silty or sandy clay that separates the Surficial Aquifer from the Black Creek Aquifer. The lithologic contact elevation with the overlying Surficial Aquifer is variable, as is the unit thickness –the Black Creek Confining Unit is interpreted to have been eroded under the western portion of the manufacturing areas at Site. In addition to the Black Creek Confining unit being discontinuous, the potential for downward cross formational flow, also exists based on multiple vertical joints (i.e., fractures in the clay) observed in the Black Creek Confining Unit where it outcropped at the Site. 5. Flood Plain Deposits. Surface soils in the flood plain immediately adjacent to the Cape Fear River are comprised of finer grained, likely more recently deposited sediments during river flood stages. These deposits have lower hydraulic conductivity than the Surficial and Black Creek Aquifers. The seeps at the Site cut into Floodplain Deposits as they flow towards the Cape Fear River. 6. Black Creek Aquifer. The Black Creek Aquifer is comprised of fine to medium grained sands. The Black Creek Aquifer is in contact with the Surficial Aquifer under the western portion of the manufacturing area at the Site and then is separated from the Surficial Aquifer under most of the manufacturing area by the Black Creek confining unit. The Black Creek Aquifer directly adjacent to the Cape Fear River is overlain by Flood Plain Deposits and the Black Creek Confining Unit. The Black Creek Aquifer is interpreted to be the only transmissive groundwater zone at Site in contact with the Cape Fear River. Groundwater in the Black Creek Aquifer flows from west to east towards the Cape Fear River. 7. Upper Cape Fear Confining Unit. The Upper Cape Fear Confining Unit underlies the Black Creek Aquifer. The Upper Cape Fear Confining unit is regionally extensive clay layer which is upwards of 75 ft thick at Site and is likely a barrier to downwards groundwater flow. Groundwater levels in the Upper Cape Fear Aquifer measured at NC DWR wells are 80 ft lower than Black Creek Aquifer groundwater levels immediately above the Upper Cape Fear Aquifer. If the two units were in hydraulic connection, they would have similar groundwater elevations. The dissimilarity in water levels for these co-located NC DWR wells demonstrates how the Upper Cape Fear Confining Unit is a barrier to downward cross formational flow. 8. Erosional Feature. A paleo-era process appears to have eroded the Perched Clay Unit, portions of the Surficial Aquifer and the Black Creek Confining Unit in the geological sequence under the western portion of the manufacturing area. This erosional feature potentially enables cross formational flow of water from the Perched Zone, through the Surficial Aquifer and into the Black Creek Aquifer. This feature is a likely controlling factor of the distribution of PFAS observed in the Surficial and Black Creek Aquifers at Site. 10.2 Sources of PFAS and Distribution of PFAS Historically, Table 3+ PFAS originating from the Site have been released from stack emissions and from process water releases. Air sources result in a more distributed, diffuse concentration signature of deposited compounds that decrease in concentration in soil and groundwater gradually and radially away for the source. Meanwhile releases of water result in point sources and plumes TR0795 50 October 31, 2019 of compounds in groundwater where high concentrations can be present in close proximity to lower concentrations and where migration and distribution of compounds is controlled by geology and hydrogeology. With the data collected to date, PMPA appears to be the Table 3+ PFAS most representative of air emissions; it is the highest concentration PFAS in offsite groundwater samples. The presence of offsite Table 3+ PFAS in groundwater originate from emissions to air followed by association with particulates in air and then subsequent aerially deposition leading to infiltration through the unsaturated zone with rainfall and ending up in groundwater. The concentration of PMPA onsite is highest in the immediate vicinity of the Monomers IXM Area where it originates (Figure 9-6). The concentrations at the Site then decrease radially away from this area in all directions, consistent with air deposition patterns. Offsite, the most robust data set exists for HFPO-DA. Here again, with increasing distance away from the Site HFPO-DA concentrations decrease (Figure 4- 2A and B). With the data collected to date, PFMOAA appears to be the Table 3+ PFAS most representative of process water. Known releases of process water and process water mixed with non-contact cooling water to soil and groundwater occurred prior to 2000 in the Monomers IXM Area and prior to 2017 along the terracotta pipe and potentially along other parts of the conveyance network that transferred process water through the terracotta pipe, to the wastewater treatment plant, then to the Outfall Channel and prior to 2012 to the Old Outfall 002 and the Cape Fear River. The highest concentrations of PFMOAA at Site (Figure 9-7) are clustered along and near areas of known release of process water. Further high PFMOAA concentrations are observed near locations with much lower PFMOAA concentrations. The distribution of PFMOAA though is in part controlled by aerially deposition, but these concentrations are much lower than process water derived PFMOAA. The distribution of PFMOAA and other PFAS released is in part controlled by geology and hydrogeology. 10.2.1 PFAS Signatures Four PFAS signatures were identified based on the different releases and emissions of Table 3+ PFAS to the environment and can be used to infer which PFAS source types are most contributing to detections in different environmental media and at different locations. The four signature types identified were: • Aerial deposition PFAS signature characterized by a predominant proportion of PMPA; • Aerial deposition PFAS signature characterized by a mixture of PFAS compounds; • Combined process water PFAS signature characterized with a predominant proportion of PFMOAA; • Combined process water PFAS signature characterized by a mixture of PFAS compounds; and TR0795 51 October 31, 2019 The PFAS patterns of the Old Outfall 002, the Seeps, Willis Creek, Georgia Branch Creek and Cape Fear River samples were compared against the identified PFAS signatures described earlier in Section 9.2.2 and are presented in Table 10-1. Observations include: • Samples collected along the Old Outfall 002 most resemble the combined process water PFAS signature with a predominant proportion of PMPA, except for one sample (OLDOF-2J) that was collected from the seep water. The Old Outfall 002 is both near the WWTP to which the terracotta pipe conveyed combined Monomers IXM process water, and the Old Outfall 002 prior to 2012 conveyed combined process water from Monomers IXM; • Samples collected from the seeps resemble the two combined process water signatures and the aerial signature characterized by a mixture of PFAS compounds. Seeps C and D most resemble the combined process water signature with predominant PFMOAA. These two seeps are nearest the present Outfall 002 and Old Outfall 002, both of which conveyed combined process water (Figure 4-1). Seep A and one sample from Seep B bear some resemblance to the combined process water signature with a mixture of PFAS compounds, while the other samples collected at Seep B resemble the aerial PFAS signature with a mixture of PFAS compounds, which could also be associated with historical process water release, as discussed in Section 9.2. Seeps A and B are found near the Monomers IXM area and other seeps at the top of the Bluff which drain the Perched Zone near Monomers IXM feed the flow of water in these two seeps; • Sample collected from Georgia Branch Creek resemble the aerial deposition signature with a mixture of PFAS compounds, whereas Willis Creek resembles the combined process water signature with a mixture of PFAS compounds. The catchments of both creeks are predominantly outside of the Site, and consequently most of their flow is from outside the Site. However, Willis Creek has higher proportions of PFMOAA and Byproduct 5 compared to Georgia Branch Creek. Willis Creek is adjacent the Site, and some water from the Perched Zone and Surficial Aquifer are interpreted to flow towards Willis Creek. • The sample collected upstream Cape Fear River at River Mile 76, which is directly upstream of the Site, resembles the aerial deposition signature with a mixture of PFAS compounds, though the total Table 3+ concentration (72 ng/L) in this sample was lowest among all of the seeps, creeks, and Old Outfall 002 samples. • The samples collected downstream adjacent to drinking water intakes, Bladen Bluffs and Kings Bluff Intake Canal, resemble the combined process water signature with a mixture of PFAS compounds. 10.2.2 Influence of Geology on Table 3+ PFAS Distributions in Groundwater Geology and Hydrogeology are interpreted to have influenced the detection of PFAS in groundwater at the Site. Directly under the manufacturing areas PFAS released to soil and groundwater have led to the formation of high PFAS concentration groundwater seeps to the east of the manufacturing area along the bluff face. To the west, a paleo-era erosional surface cuts through the perched clay unit and in places the Surficial Aquifer and the Black Creek Confining Unit. This erosional surface has enabled groundwater with PFAS to migrate downwards off the western edge of the perched clay unit downwards into the Surficial and Black Creek Aquifers. TR0795 52 October 31, 2019 These PFAS are then detected in Surficial Aquifer seeps along the bluff face, some minor seeps adjacent to Willis Creek, and the seeps that feed the groundwater flow and PFAS concentrations in Old Outfall 002. The influence of geology and hydrogeology on Site will be further examined as part of the numerical groundwater model being prepared to evaluate groundwater flow in support of selecting and designing a groundwater remedy at the Site. 10.3 PFAS Mass Loading to the Cape Fear River The findings of this report are consistent with the PFAS Mass Loading Model submitted to NCDEQ and CFRW (Geosyntec, 2019f). The PFAS Mass Loading Model assessed the contribution of different transport pathways to overall mass loading of PFAS originating from the facility to the Cape Fear River. Pathways contributing to loading are shown in Figure 10-6 and listed below as follows: Transport Pathway 1: Upstream Cape Fear River and Groundwater – pathway is comprised of contributions from non-Chemours related PFAS sources on the Cape Fear River and tributaries upstream of the Site, and upstream offsite groundwater with Table 3+ compounds present from aerial deposition Transport Pathway 2: Willis Creek – Groundwater and stormwater discharge and aerial deposition to Willis Creek and then to the Cape Fear River Transport Pathway 3: Direct aerial deposition of PFAS on the Cape Fear River; Transport Pathway 4: Outfall 002 – Comprised of (i) water drawn from the Cape Fear River and used as non-contact cooling water, (ii) treated non-Chemours process water and (iii) Site stormwater which are then discharged through Outfall 002; Transport Pathway 5: Onsite Groundwater – Direct upwelling of site groundwater to Cape Fear River from Black Creek Aquifer; Transport Pathway 6: Seeps – Groundwater Seeps (currently identified seeps are A, B, C and D) above the Cape Fear River water level on the bluff face from the facility that discharge into the Cape Fear River; Transport Pathway 7: Old Outfall 002 – Groundwater discharge to Old Outfall 002 and stormwater runoff flows into the Cape Fear River; Transport Pathway 8: Adjacent and Downstream Groundwater – Offsite groundwater adjacent and downstream of the Site upwelling to the Cape Fear River; and, Transport Pathway 9: Georgia Branch Creek – Groundwater, stormwater discharge and aerial deposition to Georgia Branch Creek and then to the Cape Fear River. TR0795 53 October 31, 2019 PFAS loading to the Cape Fear River was estimated using a combination of measured and estimated data to develop mass loading estimates by pathway. The model was then calibrated and evaluated against observed downstream river PFAS mass loadings. The mass loading model estimated that the Old Outfall 002 and Seeps (Transport Pathways 6 and 7 respectively) have the highest contribution of Table 3+ PFAS mass loading to the Cape Fear River. These two pathways (Transport Pathways 6 and 7) combined are estimated to contribute greater than 50% of the loading to the Cape Fear River. Onsite groundwater (Transport Pathway 5) is the next highest mass loading pathway to the Cape Fear River with estimated loading of approximately 20%. Mass Loading Model Total Table 3+ PFAS including HFPO-DA Contributions per Pathway Pathway Total Table 3+ Estimated Loading Percentage per Pathway per Event May 2019 Event June 2019 Event [1] Upstream River Water and Groundwater 4% 15% [2] Willis Creek 10% 4% [3] Aerial Deposition on the River < 2% < 2% [4] Outfall 002 4% 7% [5] Onsite Groundwater 22% 17% [6] Seeps 32% 24% [7] Old Outfall 002 23% 29% [8] Offsite Adjacent and Downstream Groundwater < 2% < 2% [9] Georgia Branch Creek 4% 3% For the Transport Pathways, the loading estimates will vary over time due to a range of potential factors, including but not limited to: • Detections of PFAS at or near analytical practical quantitation limits have more variability; • Elevated method reporting limits; • Standard uncertainty (often ± 20%) in analytical laboratory results; • Flow rate estimates in the river, seeps, groundwater and creeks are over- or under- predicted compared to actual flow rates. Geosyntec will be refining the mass loading model through upcoming quarterly sampling events and a numerical groundwater model to more quantitatively bound groundwater mass loading to the Cape Fear River. 10.4 Recommendations This report summarizes effort from 2019 and numerous prior investigations to present a current and robust CSM that can be used to develop remedial options for the impacted media at the Site. While there remain data from recent well installations to report and more studies to report (SLEA, the sediment characterization, the numerical model and the information generated from the onsite TR0795 54 October 31, 2019 pilot studies) and these will undoubtedly further the CSM, the information collected is a suitable framework to begin remedy options selection and design. Geosyntec recommends the following: • Additional sampling of recently installed wells to evaluate consistency of results; • Additional development prior to any sampling of wells reporting higher turbidity or PMPA detections below 200 ng/L or non-detect PMPA values with reporting limits above 200 ng/L; and • Installing a well south of Old Outfall 002, along Glengerry Road to evaluate PFAS concentrations in this area (given the observations at PW-11). Chemours is currently performing additional development and sampling of recently installed wells. This effort is anticipated to be completed in 2019. TR0795 55 October 31, 2019 11. CONCLUSIONS This On and Offsite Assessment Report and the 25+ reports it relies upon provide sufficient data such that an interpretation of the nature and extent of PFAS impacts are understood to a level that remedial selection to address groundwater containing PFAS originating from the Site is feasible. This assessment is based on: • 25+ completed targeted scope investigations, • 3,167 investigative samples reported to date, 142 reported since June 2019; o Over 300 groundwater samples, 115 reported since June 2019; o Over 150 soil samples, 27 reported since June 2019; o Over 800 surface water samples reported to date; o Over 1,700 private well samples reported to date; and o Over 100 soil borings and logs. Point source releases of high concentration process water at Site have resulted in groundwater that contains elevated concentration of PFAS migrating through all three groundwater transmissive zones present at Site (i.e., Perched Zone, Surficial Aquifer, and Black Creek Aquifer) and discharging via groundwater seeps, seepage to Old Outfall 002 or direct groundwater discharge to the Cape Fear River. The deepest zone at the Site established to have detectable concentration of PFAS is the Black Creek Aquifer. It is the only geologic unit at Site in direct connection with the Cape Fear River. The Black Creek Aquifer is underlain by a regionally extensive and thick aquitard, the Upper Cape Fear Confining Unit. PFAS have also been detected in soils. For samples collected in 2019 onsite concentrations of individually detected PFAS were below 2,000 ng/kg except for detections at location PW-10 which was located on the bluff face near seeps. As reference, 2,000 ng/kg is equivalent to a water concentration of 9,600 ng/L assuming a soil density of 1.442 kg/L and a porosity of 0.3 where all PFAS detected in soil would be fully solubilized. A concentration of 9,600 ng/L is relatively low when compared to many observed concentrations in groundwater at Site, the Seeps and Old Outfall 002. Offsite, PFAS have been aerially deposited and exist as a distributed, diffuse source potentially present over an area of 100 square miles (radius of 6 miles) where concentrations in groundwater gradually become lower further away from the Site. Ongoing air abatement measures and the installation and operation of the thermal oxidizer will lead to a 99% facility wide reduction in PFAS emissions to air. Correspondingly, the deposition of PFAS to offsite soils will be reduced by 99% and over time concentrations will decline. At present Chemours is providing replacement drinking water to offsite private well users with well water exceeding CO defined Attachment C TR0795 56 October 31, 2019 PFAS concentration criteria. Replacement water is first being supplied as bottled water to residents who qualify as an interim provision. Then more permanent replacement water is provided to residents including (i) point of use reverse osmosis systems, or (ii) whole house filtration systems, or (iii) connection to public water supplies. PFAS in the offsite Georgia Branch Creek originate from aerially deposited PFAS that then discharge into the creek. Hence, the mass loading to Georgia Branch Creek is likely relatively uniform as it flows to the Cape Fear River. The PFAS in Willis Creek originate from both aerially deposited PFAS and from PFAS in groundwater from the Site originating from process water releases. The aerially deposited fraction of PFAS in Willis Creek are similar to Georgia Branch Creek, likely a diffuse and uniform loading. Chemours is preparing a Corrective Action Plan (CAP) for groundwater due December 31, 2019 as required by Paragraph 16 of CO. This CAP will be supported by: • Characterization data (reported here and previously); • Numerical groundwater model (prepared using data presented here); and • Human health SLEA. The CAP will describe specific remedial measures and schedules to address PFAS mass loading to the Cape Fear River and other surface water bodies from (a) seeping groundwater and (b) direct discharge of Black Creek Aquifer groundwater to the Cape Fear River. Control measures under consideration include hydraulic containment, in situ sorptive remedies, or in situ treatment remedies or some combination thereof. TR0795 57 October 31, 2019 12. REFERENCES Arnold and Porter, 2017. Notice of Violation & Intent to Assess Civil Penalty, Chemours Fayetteville Works. November 27, 2017. Devlin, J.F., 2015. HydrogeoSieveXL: an Excel-based tool to estimate hydraulic conductivity from grain-size analysis. Hydrogeology Journal. 23. 10.1007/s10040-015-1255-0. DuPont CRG. June 2006. Phase II RFI Report. DuPont Fayetteville Works. ERM, 2018. Modeling Report: HFPO-DA Atmospheric Deposition and Screening Groundwater Effects. April 27, 2018. Farrell et al., 2001. Cape Fear River Transect: The Upper Cretaceous Cape Fear, Black Creek, and Peedee Formations of Southeastern North Carolina and the Overlying Cenozoic Section (Milepost 111 to Milepost 25). Guidebook Geological Society of America, Southeastern Section. Geosyntec, 2018a. Assessment of the Chemical and Spatial Distribution of PFAS in the Cape Fear River. Chemours Fayetteville Works. 17 September 2018. Geosyntec, 2018b. Stormwater Sampling Report, Chemours Fayetteville Works. March 29, 2018. Geosyntec, 2019a. Seeps and Creeks Investigation Report. Chemours Fayetteville Works. 26 August 2019. Geosyntec, 2019b. Sediment Characterization Plan. Chemours Fayetteville Works. August 2019. Geosyntec, 2019c. Submission of Site Associated PFAS Fate and Transport Study Pursuant to Consent Order Paragraph 27. June 24, 2019. Geosyntec, 2019d. Cape Fear River PFAS Loading Reduction Plan. Chemours Fayetteville Works. 26 August 2019. Geosyntec, 2019e. Decommissioning Summary of Grouting of East-West Section of Terracotta Pipe from Chemours Monomers IXM Area. Chemours Fayetteville Works. 26 August 2019. Geosyntec, 2019f. Cape Rear River PFAS Mass Loading Model Assessment and Paragraph 11.1 Characterization of PFAS at Intakes. Chemours Fayetteville Works. 26 August 2019. Geosyntec, 2019g. Offsite Screening Level Exposure Assessment (SLEA) of Site Associated PFAS. Chemours Fayetteville Works. In Progress. Geosyntec, 2019h. Offsite Screening Level Exposure Assessment (SLEA) of Site Associated PFAS – Workplan. Chemours Fayetteville Works. July 2019. TR0795 58 October 31, 2019 Geosyntec, 2019i. Post Hurricane Florence PFAS Characterization Chemours Fayetteville Works. April 12, 2019. Geosyntec, 2019j. Submission of Quarterly Report #1 – Characterization of PFAS in Process and Non-Process Wastewater and Stormwater – Chemours Fayetteville Works, Fayetteville, NC. July 31, 2019. Geosyntec, 2019k. Assessment of HFPO-DA and PFMOAA in Outfall 002 Discharge and Evaluation of Potential Control Options. August 2019. Guelfo, J. L. and C. P. Higgins, 2013. Subsurface Transport Potential of Perfluoroalkyl Acids at Aqueous Film-Forming Foam (AFFF)-Impacted Sites. Environmental Science & Technology 47(9): 4164-4171. Heron et al., 1968, Graded rhythmic bedding in the Cape Fear Formation, Carolina Coastal Plain, Sedimentology, v. 11, p. 39-52. Higgins, C. P. and R. G. Luthy. 2006. Sorption of Perfluorinated Surfactants on Sediments. Environmental Science & Technology 40(23): 7251-7256. Huang, S., & Jaffé, P. R., 2019. Defluorination of Perfluorooctanoic Acid (PFOA) and Perfluorooctane Sulfonate (PFOS) by Acidimicrobium sp. Strain A6. Environmental science & technology. Kaandorp, Vince P., Doornenbal, Pieter J., Kooi, Henk, Broers, Hans Peter, & de Louw, Perry G., 2019. Temperature buffering by groundwater in ecologically valuable lowland streams under current and future climate conditions. Journal of Hydrology X, 3, 100031. Kärrman, A., Elgh-Dalgren, K., Lafossas, C., & Møskeland, T., 2011. Environmental levels and distribution of structural isomers of perfluoroalkyl acids after aqueous fire-fighting foam (AFFF) contamination. Environ. Chem, 8(4), 372-380. Keys, W. Scott, 1997. A Practical Guide to Borehole Geophysics in Environmental Investigations. CRC/Lewis Publishers, Boca Raton, FL. 176 pages. Mueller, R. and V. Yingling, 2018. Environmental Fate and Transport for Per- and Polyfluoroalkyl Substances. Interstate Technology Regulatory Council. NCDEQ, 2017. Corrective Measures Study Work Plan Approval Letter, Chemours Fayetteville Works. February 8, 2017. North Carolina Climate Office, 2019. Data retrieved from the NC Climate Retrieval and Observations Network of the Southeast Database (NC CRONOS/ECONet Database) accessed 9-5-2019 1700 from climate.ncsu.edu. North Carolina Geological Survey, 1985, Geologic Map of North Carolina, North Carolina Geological Survey, 1:500,000 color. TR0795 59 October 31, 2019 OECD, 2004. OECD Guidelines for the Testing of Chemicals. Partition Coefficient (n- octanol/water), High Performance Liquid Chromatography (HPLC) Method. April 13, 2004. Owens and Sohl, 1989. Carolina Geological Society Field Trip Guidebook: Campanian and Maastrichtian Depositional Systems of the Black Creek Group of the Carolinas. October, 1989. Parsons, 2014. Final RCRA Facility Investigation Report (Rev.1). DUPONT Fayetteville Works Site. RCRA Permit No. NCD047368642-R2. February 2014, Revised August 2014. Parsons, 2016. Corrective Measures Study Work Plan. Chemours Fayetteville Works. December 2, 2019 Parsons, 2017a. Memorandum Supplemental Groundwater Sampling Memorandum Fayetteville Works Facility. November 3, 2017. Parsons, 2017b. Additional Supplemental Soil and Surface Water Sampling Memorandum Fayetteville Works Facility. November 3, 2017. Parsons, 2017c. Cape Fear River Surface Water Sampling Memorandum Fayetteville Works Facility. November 3, 2017. Parsons, 2018a. Terracotta Sewer Pipe Area Investigation Report, Chemours Fayetteville Works. December 17, 2018. Parsons, 2018b. Additional Site Investigation Report – Revised. Chemours Fayetteville Works Site. March 30, 2018. Parsons, 2018c. Nafion® VE-South Investigation, Fayetteville Works Facility. March 29, 2018. Parsons, 2018d. Former Outfall Sampling Investigation Memorandum, Fayetteville Works Facility, March 29, 2018. Parsons, 2018e. Exclusion Zone Area Investigation Report, Chemours Fayetteville Works. January 15, 2019. Parsons, 2018f. Southeast Perched Zone Investigation Report, Chemours Fayetteville Works. March 28, 2019. Parsons, 2018g. The Chemours Company FC, LLC (“Chemours”) Plan to Install Granular Activated Carbon Treatment on Residential Drinking Water Wells. January 11, 2018. Parsons, 2019a. Drinking Water Compliance Plan. Chemours Fayetteville Works. RCRA PERMIT NO. NCD047368642-R2-M3. April 2019. TR0795 60 October 31, 2019 Parsons, 2019b. PlumeStop Phase 1 Pilot Study at Old Outfall 002. Chemours Fayetteville Works. September 30, 2019. Parsons, 2019c. Engineering Report Old Outfall 002 GAC Pilot Study Results. Chemours Fayetteville Works. September 30, 2019. Parsons, 2019d. Old Outfall 002 Surface Water Sampling Results. Chemours Fayetteville Works. September 30, 2019. Schulmeister, M.K., J.J Butler, Jr., J. M. Healey, L. Zheng, D. A. Wysocki and G. W. McCall, 2003. Direct-push Electrical Conductivity Logging for High-Resolution Hydrostratigraphic Characterization. Ground Water Monitoring and Remediation, Vol. 23, No. 3, pp. 52-62 Trapp Jr, H., & Meisler, H., 1992. The regional aquifer system underlying the northern Atlantic Coastal Plain in parts of North Carolina. Virginia, Maryland, Delaware, New Jersey, and New York—Summary: US Geological Survey Professional Paper. Visscher, P. T., C. W. Culbertson and R. S. Oremland, 1994. "Degradation of trifluoroacetate in oxic and anoxic sediments." Nature 369(6483): 729-731. Weber, A. K., L. B. Barber, D. R. LeBlanc, E. M. Sunderland and C. D. Vecitis, 2017. "Geochemical and Hydrologic Factors Controlling Subsurface Transport of Poly- and Perfluoroalkyl Substances, Cape Cod, Massachusetts." Environmental Science & Technology 51(8): 4269-4279. Wilson, J.T., Randall R. Ross and Steven Acree, 2005. Using Direct-Push Tools to Map Hydrostratigraphy and Predict MTBE Plume Diving. Ground Water Monitoring and Remediation, Vol. 25, No. 3, pp. 93-102. Winner Jr, M. D., & Coble, R. W., 1996. Hydrogeologic framework of the North Carolina coastal plain (No. 1404-I). TR0795 TABLES TABLE 2-1 SOIL AND GROUNDWATER ANALYTICAL METHODS - PFAS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. HFPO-DA* Hexafluoropropylene oxide dimer acid 13252-13-6 C6HF11O3 PFMOAA Perfluoro-2-methoxyaceticacid 674-13-5 C3HF5O3 PFO2HxA Perfluoro(3,5-dioxahexanoic) acid 39492-88-1 C4HF7O4 PFO3OA Perfluoro(3,5,7-trioxaoctanoic) acid 39492-89-2 C5HF9O5 PFO4DA Perfluoro(3,5,7,9-tetraoxadecanoic) acid 39492-90-5 C6HF11O6 PFO5DA Perfluoro-3,5,7,9,11-pentaoxadodecanoic acid 39492-91-6 C7HF13O7 PMPA Perfluoromethoxypropyl carboxylic acid 13140-29-9 C4HF7O3 PEPA Perfluoroethoxypropyl carboxylic acid 267239-61-2 C5HF9O3 PFESA-BP1 Byproduct 1 29311-67-9 C7HF13O5S PFESA-BP2 Byproduct 2 749836-20-2 C7H2F14O5S Byproduct 4 Byproduct 4 N/A C7H2F12O6S Byproduct 5 Byproduct 5 N/A C7H3F11O7S Byproduct 6 Byproduct 6 N/A C6H2F12O4S NVHOS Perfluoroethoxysulfonic acid 1132933-86-8 C4H2F8O4S EVE Acid Perfluoroethoxypropionic acid 69087-46-3 C8HF13O4 Hydro-EVE Acid Perfluoroethoxsypropanoic acid 773804-62-9 C8H2F14O4 R-EVE R-EVE N/A C8H2F12O5 PES Perfluoroethoxyethanesulfonic acid 113507-82-7 C4HF9O4S PFECA B Perfluoro-3,6-dioxaheptanoic acid 151772-58-6 C5HF9O4 PFECA-G Perfluoro-4-isopropoxybutanoic acid 801212-59-9 C12H9F9O3S 10:2 FTS 10:2-fluorotelomersulfonate acid 120226-60-0 C12H5F21O3 8:2 FTS 8:2 fluorotelomersulfonic acid 39108-34-4 C10H5F17O3S 4:2 FTS 4:2 fluorotelomersulfonic acid 757124-72-4 C6H5F9O3S NEtPFOSAE 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 1691-99-2 C8F17SO2N(C2H5)CH2CH2OH NMePFOSAE 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 24448-09-7 C8F17SO2N(CH3)CH2CH2OH 6:2 FTS 6:2 fluorotelomer sulfonate 27619-97-2 C8H5F13SO3 ADONA Ammonium 4,8-dioxa-3H-perfluorononanoate 958445-44-8 CF3O(CF2)3OCHFCF2COONH4 NaDONA Sodium 4,8-dioxa-3H-perfluorononanoate EVS1361 CF3O(CF2)3OCHFCF2COONa NEtFOSAA N-ethyl perfluorooctane sulfonamidoacetic acid 2991-50-6 C8F17SO2N(C2H5)CH2COOH NEtPFOSA N-ethylperfluoro-1-octanesulfonamide 4151-50-2 C8F17SO2NHCH2CH3 NMePFOSA N-methyl perfluoro-1-octanesulfonamide 31506-32-8 C8F17SO2NHCH3 NMeFOSAA N-methyl perfluorooctane sulfonamidoacetic acid 2355-31-9 C8F17SO2N(CH3)CH2COOH PFBS Perfluorobutane sulfonic acid 375-73-5 C4HF9SO PFBA Perfluorobutanoic acid 375-22-4 C4HF7O2 PFDS Perfluorodecane sulfonic acid 335-77-3 C10HF21O3S PFDA Perfluorodecanoic acid 335-76-2 C10HF19O2 PFDOS Perfluorododecane sulfonic acid 79780-39-5 C12HF25O3S PFDoA Perfluorododecanoic acid 307-55-1 C12HF23O2 PFHpS Perfluoroheptane sulfonic acid 375-92-8 C7HF15O3S PFHpA Perfluoroheptanoic acid 375-85-9 C7HF13O2 PFHxDA Perfluorohexadecanoic acid 67905-19-5 C16HF31O2 PFHxS Perfluorohexane sulfonic acid 355-46-4 C6HF13SO3 PFHxA Perfluorohexanoic acid 307-24-4 C6HF11O2 PFNS Perfluorononanesulfonic acid 68259-12-1 C9HF19O3S PFNA Perfluorononanoic acid 375-95-1 C9HF17O2 PFODA Perfluorooctadecanoic acid 16517-11-6 C18HF35O2 PFOSA Perfluorooctane sulfonamide 754-91-6 C8H2F17NO2S PFPeS Perfluoropentane sulfonic acid 2706-91-4 C5HF11O3S PFPeA Perfluoropentanoic acid 2706-90-3 C5HF9O2 PFTeA Perfluorotetradecanoic acid 376-06-7 C14HF27O2 PFTriA Perfluorotridecanoic acid 72629-94-8 C13HF25O2 PFUnA Perfluoroundecanoic acid 2058-94-8 C11HF21O2 PFOA Perfluorooctanoic acid 335-67-1 C8HF15O PFOS Perfluorooctane sulfonic acid 1763-23-1 C8HF17SO3 F-53B Major F-53B Major 73606-19-6 C8HClF16O4S F-53B Minor F-53B Minor 83329-89-9 C10HClF20O4S Notes: *Depending on the laboratory, HFPO-DA may also appear on the EPA Method 537 Mod analyte list EPA - Environmental Protection Agency PFAS - per- and polyfluoroalkyl substances SOP - Standard Operating Procedure EPA Method 537 Mod CASN Chemical Formula Table 3+ Lab SOP Analytical Method Common Name Chemical Name TR0795 Page 1 of 1 October 2019 TABLE 4-1CLASSIFICATION OF TABLE 3+ PFASChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C. aR-C=CaaR-CO2HbR-SO3HcPPF Acid Perfluoropropionic acid 422-64-0C3HF5O2Per 0 Linear ---- --MMF Difluoromalonic acid 1514-85-8C3H2F2O4Per 0 Linear ----DFSA Difluoro-sulfo-acetic acid 422-67-3C2H2F2O5SPer 0 Linear --  HFPO-DAHexafluoropropylene oxide dimer acid13252-13-6C6HF11O3Per 1 Branched ---- --PFECA-GPerfluoro-4-isopropoxybutanoicacid801212-59-9C7H1F13O1Per 1 Branched ---- --MTPPerfluoro-2-methoxypropanoicacid93449-21-9C4H4F4O3Poly 1 Linear ---- --Common Name Chemical Name CAS # FormulaDegree of FluorinationEther BondsIsomer typeFunctional GroupsDiproticdStructurePFAS without ether linkagesPer- and polyfluoroalkyl ether carboxylic acids (PFECAs)TR0795Page 1 of 4 October 2019 TABLE 4-1CLASSIFICATION OF TABLE 3+ PFASChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C. aR-C=CaaR-CO2HbR-SO3HcCommon Name Chemical NameCAS # FormulaDegree of FluorinationEther BondsIsomer typeFunctional GroupsDiproticdStructurePMPAPerfluoromethoxypropylcarboxylic acid13140-29-9C4HF7O3Per 1 Branched ---- --PEPAPerfluoroethoxypropylcarboxylic acid267239-61-2C5HF9O3Per 1 Branched ---- --PFMOAA Perfluoro-2-methoxyacetic acid 674-13-5C3HF5O3Per 1 Linear ---- --PFO2HxA Perfluoro(3,5-dioxahexanoic) acid 39492-88-1C4HF7O4Per 2 Linear ---- --PFECA BPerfluoro-3,6-dioxaheptanoicacid151772-58-6C5HF9O4Per 2 Linear ---- --PFO3OAPerfluoro(3,5,7-trioxaoctanoic)acid39492-89-2C5HF9O5Per 3 Linear ---- --PFO4DAPerfluoro(3,5,7,9-tetraoxadecanoic)acid39492-90-5C6HF11O6Per 4 Linear ---- --TR0795Page 2 of 4 October 2019 TABLE 4-1CLASSIFICATION OF TABLE 3+ PFASChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C. aR-C=CaaR-CO2HbR-SO3HcCommon Name Chemical NameCAS # FormulaDegree of FluorinationEther BondsIsomer typeFunctional GroupsDiproticdStructurePFO5DAPerfluoro-3,5,7,9,11-pentaoxadodecanoic acid39492-91-6C7HF13O7Per 5 Linear ---- --Hydro-EVEAcidPerfluoroethoxsypropanoicacid773804-62-9C8H2F14O4Poly 2 Branched ---- --EVE AcidPerfluoroethoxypropionicacid69087-46-3C8HF13O4Per 2 Branched -- --R-EVE R-EVE N/AC8H2F12O5Per 1 Branched ----PESPerfluoroethoxyethanesulfonicacid113507-82-7C4HF9O4SPer 1 Linear -- ----NVHOSPerfluoroethoxysulfonicacid1132933-86-8C4H2F8O4SPoly 1 Linear -- ----Byproduct 6Byproduct 6N/AC6H2F12O4SPoly 1 Branched -- ----Per- and polyfluoroalkyl ether sulfonic acids (PFESAs)TR0795Page 3 of 4 October 2019 TABLE 4-1CLASSIFICATION OF TABLE 3+ PFASChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C. aR-C=CaaR-CO2HbR-SO3HcCommon Name Chemical NameCAS # FormulaDegree of FluorinationEther BondsIsomer typeFunctional GroupsDiproticdStructureByproduct 2Byproduct 2749836-20-2C7H2F14O5SPoly 2 Branched -- ----PFESA-BP1Byproduct 129311-67-9C7HF13O5SPer 2 Branched----Byproduct 4Byproduct 4N/AC7H2F12O6SPer 1 Branched --  Byproduct 5Byproduct 5N/AC7H3F11O7SPoly 2 Branched --  Notes:b Carboxylic acid functional groupc Sulfonic acid functional groupd Compound with two acid functional groupsPer- and polyfluoroalkyl ether sulfonic and carboxylic acids (PFES-CAs)a Carbon double bond functional groupTR0795Page 4 of 4 October 2019 TABLE 5-1PUBLIC/ COMMUNITY WATER SUPPLY WELLSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.PWS IDLocation NameAddressCityLocation Description 1 Location Description 2Depth (feet)Distance from Site (miles)Usage0326127BROOKWOOD COMM WTR SYSTEM6902 SANDBRIDGE DRIVE FAYETTEVILLESHENANDOAH, JUSTIN CT- 5718 JUSTIN COURT AWAY FROM FENCE.OFFICE AT THE END OF BRYANSTONE WAY80 14.9Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326341STONEY POINT WS/FAYETTEVILLE PWC-FAYETTEVILLE STONEY POINT & ROUSE DRSR 2986 OFF SR 111290 13.0Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.5026009CRYSTAL SPRINGS CHAPEL 1400 CRYSTAL SPRINGS RD FAYETTEVILLE NEXT TO PARKING AREAON CRYSTAL SPRINGS ROAD APPROX 1/2MILES OIW CAMDEN ROAD30 12.5Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326310RAINTREE MHP3580 STATE STFAYETTEVILLE BEHIND MHP@PLAYGOURNDOFF CAMDEN RD AT END OF STATE STREET100 12.1Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326143COPELAND ACRES S/D 583 REILLY RDFAYETTEVILLE OFF CRAMER IN POWER LINE EASEMENTCAMDEN ROAD & ORION DRIVE - 1 MI EAST OF HOPE MILLS ROAD75 12.1Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326428MACEDONIA BAPTIST CHURCH5064 MACEDONIA CHURCH RD FAYETTEVILLE IN FRONT OF OLD FELLOWSHIP HALLSR2013 .4MI N OIW NC210 - 5064 MACEDONIA CHURCH RD-11.9Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326924KINGDOM HALL (SR-2008) JUDSON CHURCH ROAD FAYETTEVILLE @ NW CORNER OF CH IN REAR, BELOW GRADE SR2008 0.6MI NE OIW NC53L BEHIND JUDSON CH RD -11.8Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326548FANTASY LAKE5869 PERMASTONE DR HOPE MILLSAT EQUIPMENT SHED PAST LOCKED GATE, EAST SIDE OF LAKE@END OF PERMASTONE DRIVE OFF GOLFVIEW DR W OF HOPE MILLS323 11.5Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326955STRICKLAND GROCERY NO 2 5205 NC HWY 210 SSTEDMANNEXT TO ROADAT THE Y OF NC210 & SR2018-11.5Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326411CHURCH OF GOD OF PROPHECY5371 NC 210 SSTEDMANN SIDE OF CH NEXT TO REAR DOOR TOWARDS PARKING LOTNC 210- 0.1MI SE OIW SR2018-11.4Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.5026029DOLLAR GENERRAL STORE #159842222 CEDAR CREEK RD FAYETTEVILLE FRONT RIGHT CORNER OF PARKING LOTN ON GREEN ST RT ON GROVE ST RT ON CEDAR CREEK RD33 11.4Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326143COPELAND ACRES S/D 583 REILLY RDFAYETTEVILLE OFF BURGAW DRIVECAMDEN ROAD & ORION DRIVE - 1 MI EAST OF HOPE MILLS ROAD85 11.4Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.5026017ST JUDE BAPTIST CHURCH 3600 ACORDIA LNHOPE MILLS BESIDE CHURCH NEAR PARKING AREAEND OF ACORDIA LN OFF LEGION RD91 11.2Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326342TANGLEWOOD ESTATES S/D HWY 301FAYETTEVILLE BACK OF DEVELOPMENTHWY 301 PAST INTERSECTION WITH AIRPORT RD 75 11.0Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326342TANGLEWOOD ESTATES S/D HWY 301FAYETTEVILLE FRONT OF DEVELOPMENT IN MH SALES LOTHWY 301 PAST INTERSECTION WITH AIRPORT RD 120 11.0Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326796NC PRODUCTS OF FAYETTEVILLE3960 CEDAR CREEK ROAD FAYETTEVILLE BACK OF SITE/ NORTH SIDENC 53 0.3 MI S OIW NC210 R74 10.2Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.5326406HERITAGE BIBLE FELLOWSHIP4519 CALICO STHOPE MILLS NORTH EAST CORNER OF LOTON CALICO ROAD 1/2 MILE OFF CAMDEN ROAD-9.9Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326776THE ARC OF HOPE MILLS 4124 PEACAN DRIVEHOPE MILLS AT REAR OF REST HOMEON CAMERON RD APPX 1/2 MILE FROM HOPE MILL CITY LIMITS200 9.8Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326302LAZY ACRES CAMPGROUND 821 LAZY ACRES STREET FAYETTEVILLE BEHIND OFFICE821 LAZY ACRES ST - OFF SR-2341 .3MI OIW SR-2219 699.7Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326701VFW POST 6703928 DOC BENNETFAYETTEVILLE RD REAR OF VFW LOT SE CORNER2MI NO OIW NC 87 AND DOC BENNETTE RD NEAR AIRPORT659.7Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326570MT CALVARY MISSIONARY BAPTIST3398 DOC BENNETT RD FAYETTEVILLE IN FRONT OF CHURCHON DOC BENNETT RD APPROX .1MI W OIW I-95 SOUTH --9.4Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326516SHORT STOP #63-FAYETTEVILLE AT REAR OT STOREHWY 53 IOW TABOR CHURCH RD-9.1Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326538CEDAR CREEK BAPTIST CHURCH4170 TABOR CHURCH ROAD FAYETTEVILLE NEXT TO BALL FIELD @OLD WELLON SR 2033 JUST OFF NC 53 INTER WITH THE CONVIENCE STORE - 4170 TABOR CHURCH RD455 9.0Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.5326413FED EX FREIGHT-HOPE MILLS S OF BLDG NEXT TO FENCEON SERVICE RD OFF NC 301S SO OF HOPE MILLS EXIT NC 301-8.9Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326864GREATER FIRST BAPTIST CHURCH3398 MCKINNON RDFAYETTEVILLE E OF CH NEXT TO DRIVEWAYOFF MCKINNIN RD 1/2 MILE FROM INTER WNC53 CEDAR CK COMM-8.8Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.5026028NEW VISION CHRISTIAN CHURCH6111 MCDONALD RDPARKTONIN FORNT OF CHURCHON MCDONALD RD, APPX 1 MILE W ON US 301-8.7Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326865GREGORY POOLE EQUIPMENT CO5663 US 301 SHOPE MILLS -1 MILE S OIW US 301 & CHICKEN FOOT ROAD788.7Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0378030SAINT PAULS, TOWN OF 110 WEST MCLEAN ST ST PAULSODOM RDWATER TREATMENT PLANT321 8.6Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326687UNION OAK AME ZION CHURCH6142 HIGHWAY 301 SOUTH HOPE MILLS SOUTH OF CHURCH NEXT TO FIELDNEAR CO LINE ON NC 301-8.5Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0378030SAINT PAULS, TOWN OF 110 WEST MCLEAN ST ST PAULS WATER TREATMENT PLANT142 8.4Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0309040TAR HEEL WATER CORP -TAR HEELSR 2354 MAIN ST-0.2 M S OF ARMFIELDOFF HWY 87 IN TARHEEL135 8.3Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.TR0795Page 1 of 3October 2019 TABLE 5-1PUBLIC/ COMMUNITY WATER SUPPLY WELLSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.PWS IDLocation NameAddressCityLocation Description 1 Location Description 2Depth (feet)Distance from Site (miles)Usage0378030SAINT PAULS, TOWN OF 110 WEST MCLEAN ST ST PAULSCLARK STWATER TREATMENT PLANT340 8.1Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326503MT PISGAH BAPTIST CHURCH 3350 BUTLER NURSERY RD FAYETTEVILLE IN FRONT OF CHURCH IN OLD BRICK PUMP HOUSE.3350 BUTLER NURSERY RD, NC 87S OF FAYETTEVILLE OVER RIVER RD TO RT FROM F-VILLE NC-7.9Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.5078003MARSHLACK MHP #1 -PARKTONAT THE END OF SOUTHERN COMFORT DRAT SOUTHERN COMFORT AIR RANCH LITTLE MARSH RD OFF HWY 301 SOUTH. ROBESON/CUMBERLAND CO LINE100 7.8(State Def) 2+ systems that are adjacent, owned or operated by same supplier of water, and together serve 15+ connections or 25+ people.5078004MARSHLACK MHP #2ROBESON CUMBERLAND AND CO LINEPARKTONAT THE END OF SOUTHERN COMFORT DRAT SOUTHERN COMFORT AIR RANCH LITTLE MARSH RD OFF HWY 301 SOUTH SOUTH SLIGHTLY NORTH WEST OF PROPERT100 7.8(State Def) 2+ systems that are adjacent, owned or operated by same supplier of water, and together serve 15+ connections or 25+ people.0309040TAR HEEL WATER CORP -TAR HEELHWY 87 JUST NORTH OF SCHOOLOFF HWY 87 IN TARHEEL115 7.5Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326572BAPTIST UNION MISSIONARY BAPTIST CHURCH1483 SAND HILL RDHOPE MILLS REAR OF CHURCH IN BRICK WELLHOUSEON SR2238 SANDHILL RD APPX .5MI E OIW SR2239 SANDHILL RD607.3Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0309523CAPE FEAR SCOUT RESERVATION13165 HWY 53 WESTWHITE OAK BEHIND RANGERS HOMEON NC 53 APPROX 2 MILE N OF WHITE OAK987.3Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0309527SMITHFIELD FARMLAND CORP-TAR HEEL DIV15855 NC 87 W - 9307TAR HEELEAST OF PLANTHWY 87 N OF TAR HEEL 1 M410 7.1Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0309527SMITHFIELD FARMLAND CORP-TAR HEEL DIV15855 NC 87 W - 9307TAR HEELAT REAR OF LAGOON BETWEEN W01 AND WO2 HWY 87 N OF TAR HEEL 1 M400 7.0Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0309527SMITHFIELD FARMLAND CORP-TAR HEEL DIV15855 NC 87 W - 9307TAR HEELSO OF PLANT BELOW LAGOONHWY 87 N OF TAR HEEL 1 M409 6.8Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0309527SMITHFIELD FARMLAND CORP-TAR HEEL DIV15855 NC 87 W - 9307TAR HEELIN FRONT OF PLANT NEAR HWY 87HWY 87 N OF TAR HEEL 1 M-6.8Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0326167GRAY`S CREEK MHP-FAYETTEVILLE BEHIND PUMMILL RESIDENCE87 SOUTH 1MILE FROM SR 2238706.5Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326167GRAY`S CREEK MHP-FAYETTEVILLE AT FRONT BESIDE PRESSURE TANK87 SOUTH 1MILE FROM SR 2238636.5Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326737SHERWOOD PRESBYTERIAN CHURCH4857 NC HWY 87 SOUTH FAYETTEVILLE FRONT OF CHURCHNC87 0.3 MI S - SR2220 L - 4857 NC 87 S-6.4Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0309527SMITHFIELD FARMLAND CORP-TAR HEEL DIV15855 NC 87 W - 9307TAR HEELBEHIND TRUCK SCALES, N SIDE OF PLANTHWY 87 N OF TAR HEEL 1 M410 6.4Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0378055ROBESON COUNTY WATER SYSTEM265 MCGIRT RDMAXTONHWY 20 0.5MI E OIW SR 1907SR1308 OFF HWY 71 AT CAMPBELL SOUP PLANT170 6.3Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0309527SMITHFIELD FARMLAND CORP-TAR HEEL DIV15855 NC 87 W - 9307TAR HEELBEHIND CAROLINA COLD STORAGE ABOUT 300 FT W OF OLD W5AHWY 87 N OF TAR HEEL 1 M405 6.1Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0326445TABOR UNITED METHODIST CHURCH6112 TABOR CHURCH ROAD FAYETTEVILLE FRONT OF CHURCH, TOWARDS ROAD; BELOW GRADE SR 2023 0.1 MI S OIW SR 2229-6.0Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326853FIRST UNITED BAPT CH GRAYS CK2002 CHICKEN FOOT RD HOPE MILLS FRONT LEFT OF CHURCHHWY 59 1.5MI EAST OIW 301 SO ON RIGHT-6.0Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0309060BLADEN CO WTR DIST-EAST BLADEN-WHITE LAKE HWY 53 AT SR 1327US 701 NTH SR 1796 OFFICE-AGRICULTURE RD ELIZTOWN245 6.0Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0309527SMITHFIELD FARMLAND CORP-TAR HEEL DIV15855 NC 87 W - 9307TAR HEELWEST SIDE OF HWY 87 N OF PLANTHWY 87 N OF TAR HEEL 1 M380 5.7Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0326973MJ TAYLOR CATERING & PARADISE1965 JOHN MCMILLIAN RD HOPE MILLSBEHIND HOME OFFICE @DRIVEWAY, IN OLD PASTURE AREA3 MILES FROM I-95S JUST OFF CHICKEN FOOT RD ON SR 2242 JOHN MCMILLIAN RD90 5.6Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.5009012BLADEN BLUFFS WATER SYSTEM17014 HWY 87TAR HEELINSIDE THE PERIMETER WHERE PLANT IS LOCATEDHWY 87S TO TAR HEEL. THE PLANT IS ON THE OPPOSITE SIDE OF SMITHFIELD PLANT-5.5Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0309527SMITHFIELD FARMLAND CORP-TAR HEEL DIV15855 NC 87 W - 9307TAR HEELEAST SIDE OF HWY 87 NORTH OF PLANTHWY 87 N OF TAR HEEL 1 M410 5.5Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0326682SAVANNAH BAPTIST CHURCH -FAYETTEVILLE FRONT OF CHURCH NEXT TO OLD WELLSR2023 1.3MIL S OIW SR2230 L-5.1Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326536GRAYS CREEK BAPTIST CHURCH4750 GRAYS CREEK CHURCH RDHOPE MILLS FRONT OF CHURCH, NEXT TO PARKING AREANC HWY 875, LEFT ON BLOSSOM RD, RIGHT ON GRAYS CREEK CHURCH RD.- 4.8Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326733CUMBERLAND UNION BAPTIST CH6957 TABOR CHURCH RD FAYETTEVILLE FRONT OF CH BELOW GROUNDSR2023 0.1 MI S OIW SR2228 L - 7096 TABOR CHURCH RD-4.7Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0378055ROBESON COUNTY WATER SYSTEM265 MCGIRT RDMAXTON4379NC20HWY(ACROSS FOR ROCCO)SR1308 OFF HWY 71 AT CAMPBELL SOUP PLANT146 4.4Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0378055ROBESON COUNTY WATER SYSTEM265 MCGIRT RDMAXTONHWY 20 BY RAILROAD TRACKSR1308 OFF HWY 71 AT CAMPBELL SOUP PLANT113 4.2Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.TR0795Page 2 of 3October 2019 TABLE 5-1PUBLIC/ COMMUNITY WATER SUPPLY WELLSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.PWS IDLocation NameAddressCityLocation Description 1 Location Description 2Depth (feet)Distance from Site (miles)Usage5026008GRAY`S CREEK CHURCH OF GOD4018 CHICKEN FOOT ROAD ST. PAULS NORTH SIDE OF CHURCHCHICKEN FOOT RD, APPX 5 MILES S. OF HOPE MILLS - 4.1Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0378055ROBESON COUNTY WATER SYSTEM265 MCGIRT RDMAXTONNC 20 PECAN ORCHARDSR1308 OFF HWY 71 AT CAMPBELL SOUP PLANT106 4.1Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326860SHORT TRIP3634 CHICKENFOOT RD HOPE MILLS NEAR OLD WELL #2, BEHIND PINE TREESON CHICKEN FOOT ROAD394.1Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326810ALDERMAN ROAD ELEMENTARY2860 ALDERMAN RDFAYETTEVILLE WEST SIDE OF SCHOOLBETWEEN NC87 & SCHOOL RD804.0Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.0378055ROBESON COUNTY WATER SYSTEM265 MCGIRT RDMAXTONNC 20 HAYFIELDSR1308 OFF HWY 71 AT CAMPBELL SOUP PLANT110 4.0Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.0326627GRAYS CREEK ELEM SCHOOL GRAY`S CREEK SCHOOL ROAD HOPE MILLS RIGHT OF BLDG2964 SCHOOL RD844.0Serves at least 25 of the same persons 6+ months per year. ex. schools, daycares, industries.5009010MURPHY-BROWN SANITATION-TARHEEL1023 PURDE HALL RD TAR HEELBEHIND HYDRO TANK HOUSEOFF PURDE HALL RD S OF IO NC 20 AND PURDE HALL -3.9Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.5009010MURPHY-BROWN SANITATION-TARHEEL1023 PURDE HALL RD TAR HEELNORTH OF WELL HOUSE EDGE OF SITEOFF PURDE HALL RD S OF IO NC 20 AND PURDE HALL -3.9Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326974THE CREEK BAR & GRILL 4351 CHICKENFOOT RD ST PAULSREAR OF RESTAURANT NW CORNER6.6 MILES OFF I95 ON SR 2252 CHICKEN FOOT RD - 4351 CHICKENFOOT RD-3.9Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326571MARVIN UNITED METHODIST CHURCH6740 NC 87 SOUTHFAYETTEVILLEE OF CHURCH NEXT TO DRIVEWAY TOWARDS HIGHWAYINTER OF NC 87 AND SR 1500 NEAR BALDEN CO. LINE -3.6Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0309055BLADEN CO WTR DIST-WEST BLADEN-272 SMITH CIRCLEELIZABETHTOWN SR 1300 1 MI NORTH NORTH OIW HWY 20WESTERN PART OF BLADEN CO983.0Serves 15+ connections or regularly serves 25+ year-round residents. ex. cities, towns, subdivisions.5026014CHARITY BAPTIST CHURCH 5923 SHILOAH CHURCH DRIVE FAYETTEVILLE IN FRONT OF CHURCHJUST OFF NC 87 SOUTH OF FAYETTEVILLE SHILOAH CH DR602.5Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326569MT VERNON BAPTIST CHURCH3184 COUNTY LINE RD FAYETTEVILLE FRONT OF CHURCHON CO. LINE ROAD APPX 3 MILES FROM CHICKENFOOT ROAD - 3184 COUNTY LINE RD-2.2Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.0326735WILLIS CREEK AME ZION CHURCH-FAYETTEVILLE WITHIN 3' OF WELL #1NC 87 SOUTH 4MI. OIW SR 2232-1.8Serves 25+ people at least 60 days per year. ex. restaurants, churches, DOT rest areas.Notes1. Information provided by North Carolina Corporate Geographic Database, retrieved from NC OneMap on September 24, 2019.2. Wells listed here correspond to public supply wells identified in Figure 5-1.'-' - No data availableTR0795Page 3 of 3October 2019 TABLE 6-1SUMMARY OF FINDINGS OF GEOLOGIC MAPPING STUDYChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Map ID Station ID Latitude LongitudeEstimated Elevation (ft NAVD 88)Unit Outcrop TypeThickness(ft)Major Lithology Minor LithologyStrike Dip Type Notes1.1*320 4 Bedding1.2*219 56 Joint2.1*50 7 Bedding2.2*50 21 Bedding2.3*49 24 Bedding3.1*24 10 Bedding3.2*25 11 Bedding3.3*128 71 Joint4 4.1 34.84989 -78.8285086Surficial Aquifer Bench1gray blue sandstoneNA 351 20 BeddingBench of quartz-rich, poorly graded, angular clasts, medium- to coarse-grained sand.5 5.1 34.85442 -78.8414265Black Creek Confining UnitCreek bed1 gray/black clay NA NM NM NMDark gray, massive clay in creek bed.6 6.1 34.85444 -78.8416873Black Creek Confining UnitCreek bed1 gray/black clay NA NM NM NMDark gray, massive clay in creek bed.7 7.1 34.85437 -78.8421373Black Creek Confining UnitTree Root Ball ~10 gray/black clay NA NM NM NMOutcrop inaccessible but appears to be dark gray, massive clay in creek bed.8.1 8.1 34.85494 -78.8374859Black Creek Confining UnitCreek bed1 gray/black clay NA NM NM NMDark gray, massive clay in creek bed.8.2 8.2 34.85515 -78.8377955Black Creek Confining UnitCreek bedgray/black clay NA NM NM NMDark gray, massive clay in creek bed.9 9.1 34.83764 -78.83535120Perched Aquifer Stream Cut Wall 1sandclay 81 7 BeddingReddish tan, fine- to medium-grained sand with 1 foot thick interbedded dark gray clay layer.10 10.1 34.83678 -78.83484105Perched Clay Stream Cut Wall 4clayNA 52 5 BeddingDark gray, thinly bedded clay with trace mica. First clay exposure since last station.11 11.1 34.83559 -78.8335090Perched Clay Stream Cut Wall 1.5clayNA 42 7 BeddingLight gray (top 6 inches) and dark gray, fat clay. Lithology is similar to station 10.1 and 11.1. gray/black clay lignite chips Ledge of dark gray, moderately plastic clay with lignite chips. No other outcrops were observed downstream.Ledge of fat gray clay with local orange discoloration and trace mica. Bedding is locally massive. Contact of sand observed above clay across creek.334.85151 -78.8293776Black Creek Confining UnitLedge w/ Waterfall 7 gray/black clay NALedge/waterfall outcrop of tan, thinly bedded sand observed above dark gray clay. Local surficial weathering. Ledge3 gray/black clay NALedge4234.85152 -78.8293677Black Creek Confining Unit134.85156 -78.8293177Black Creek Confining UnitTR0795Page 1 of 4October 2019 TABLE 6-1SUMMARY OF FINDINGS OF GEOLOGIC MAPPING STUDYChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Map ID Station ID Latitude LongitudeEstimated Elevation (ft NAVD 88)Unit Outcrop TypeThickness(ft)Major Lithology Minor LithologyStrike Dip Type Notes12 12.1 34.83540 -78.8332189Perched Clay Stream Cut Wall 3.25clayNA8 8 BeddingLight gray (top 6 inches) and dark gray, fat clay. Lithology is similar to station 10.1. 13 13.1 34.83465 -78.8326698Surficial Aquifer Stream Cut Wall 6.5 silty clay NA0 0 BeddingDark gray clay with silt component. Top 6 inches of outcrop is highly oxidized. Burrows observed.14.1**5 organic rich silt NA0 0 Bedding Dark black, lignite-rich silt with trace clay.14.2**1.5 claystone NA NM NM NMInterlayered dark and light gray clay. Station was observed across stream from station 14.1, approximately 15 to 20 feet below elevation of 14.1. 15 15.1 34.83339 -78.8307577Surficial Aquifer Stream Cut Wall 4sandclay NM NM NMWhite, poorly graded sand with cm- to mm-scale interlayers of black clay.16 16.1 34.83320 -78.8305881Black Creek Confining UnitStream Cut Wall 7claysand 19 7 BeddingFat dark gray clay with mm- to cm-scale interlayers of sand. First large exposure of clay since 12.1 and 13.1. Appears to begin approximately 30 feet upstream of this station.17.1*0 0 Bedding17.2*7 85 Joint18 18.1 34.83301 -78.8295181Black Creek Confining UnitStream Cut Wall 10clayNA0 0 BeddingLight and dark gray, thinly bedded clay with local surficial staining.19 19.1 34.83316 -78.8291181Black Creek Confining UnitStream Cut Wall 2clayNA0 0 BeddingDark gray, thinly bedded clay.20 20.1 34.83264 -78.8260367Black Creek Confining UnitStream Cut Wallgray clay NA NM NM NMUnable to access outcrop but appears to be dark gray, fat clay.21 21.1 34.83292 -78.8262669Black Creek Confining UnitStream Cut Walllight gray clay NA0 0 BeddingGray, fat clay and interbedded sand with trace mica and lignite chips. Pieces of petrified wood observed upstream. 22 22.1 34.83335 -78.8274973Black Creek Confining UnitStream Cut Walllight gray clay NA0 0 BeddingLight gray clay and interbedded fine-grained, angular sand with abundant lignite chips.23.1*0 0 Bedding23.2*37 82 Joint23.3*320 89 Joint17clayNADark gray, thinly bedded to massive clay with local oxidized surficial staining.Stream Cut WallStream Cut Wall15-20light to dark gray clayNALight to dark gray clay. Appears to be continuous from station 23.1. Multiple joint sets observed that show surficial weathering and horizontal bedding.23 34.83355 -78.8285473Black Creek Confining UnitStream Cut Wall1734.83308 -78.8301482Black Creek Confining Unit1434.83402 -78.8317678Surficial AquiferTR0795Page 2 of 4October 2019 TABLE 6-1SUMMARY OF FINDINGS OF GEOLOGIC MAPPING STUDYChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Map ID Station ID Latitude LongitudeEstimated Elevation (ft NAVD 88)Unit Outcrop TypeThickness(ft)Major Lithology Minor LithologyStrike Dip Type Notes24 24.1 34.83299 -78.8296382Black Creek Confining UnitStream Cut Walldark gray clay NA0 0 Bedding Dark clay and interbedded fine-grained sand.25 25.1 34.83689 -78.8246461Black Creek Confining UnitNR2clayNA 239 11 BeddingDark gray, thinly bedded clay. Identified as Seep D-D1 in Seep Investigation.26 26.1 34.84158 -78.8285499Perched Clay Waterfall2clayNA 210 10 BeddingDark gray with orange surficial staining, thinly bedded to massive clay. First observed outcrop of clay in seep B.27 27.1 34.84175 -78.8272081Black Creek Confining UnitLedge2.5clayNA NM NM NMGray, massive, fat clay. Large petrified boulder observed. 28.1*238 19 Bedding28.2*115 23 Bedding28.3*265 87 Joint29 29.1 34.84415 -78.8267567Black Creek Confining UnitNR2clayNA 224 9 BeddingDark gray, massive, lean clay, with iron-oxide surficial staining and small 1cm-scale interbedded sand laminations. First exposure observed on seep A. Seep A-6, A-130 30.1 34.84442 -78.82971147Perched Aquifer NRunconsolidated sandclay NM NM NMTan brown, fine- to medium-grained, unconsolidated sand. Identified as Seep A-7-B1 in Seep Investigation. 31 31.1 34.84424 -78.8268368Black Creek Confining UnitNR1NA0 0 BeddingDark gray clay with horizontal bedding. Identified as Seep A8 in Seep Investigation.32 32.1 34.84505 -78.8279499Surficial Aquifer NR1 clayey sand NA NM NM NMRed-brown, massive clayey sand with nodules of claystone and siltstone in dry creek bed.33 33.1 34.84519 -78.82806103Surficial Aquifer NR4sandNA NM NM NMRed-brown, moist, fine- to coarse-grained sand with gravel sized quartz grains. Identified as Seep A-10.34 34.1 34.84543 -78.82876125Perched ClayNR2-3clay NA 87 8 BeddingRed-brown and orange, moist clay with interlayers of medium-grained sand.35 35.1 34.84575 -78.82959136Perched ClayNR1claysand 269 8Reddish gray, clay overlying orange, medium- to coarse grained, hematite-rich sand and interbedded clay. 36 36.1 34.84860 -78.8279062Black Creek Confining UnitNR4 petrified wood NA NM NM NM4 foot in diameter, petrified tree trunk and dark red to gray, massive fat clay. Identified as Seep A-5.2834.84184 -78.8266575Black Creek Confining UnitWaterfall10clayNAWaterfall outcrop of dark gray, thinly bedded clay and interbedded fine-grained sand.TR0795Page 3 of 4October 2019 TABLE 6-1SUMMARY OF FINDINGS OF GEOLOGIC MAPPING STUDYChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Map ID Station ID Latitude LongitudeEstimated Elevation (ft NAVD 88)Unit Outcrop TypeThickness(ft)Major Lithology Minor LithologyStrike Dip Type Notes37 37.1 34.84860 -78.8279965Black Creek Confining UnitNR0.5clayNA NM NM NMDark red to gray, massive, fat clay.38 38.1 32.84858 -78.8281972Black Creek Confining UnitNR6-7clayNA NM NM NMDark to light gray, intricately layer/interbedded clay and fine- to medium-grained sand.39 39.1 34.85524 -78.8365253Black Creek Confining UnitNR10clayNA 352 46 JointLight to dark gray clay with cm-scale, fine-grained sand lenses throughout with local lignite layers. Outcrop is approximately 100 feet in length.40 40.1 34.85582 -78.8362454Black Creek Confining UnitNR3.5clayNA0 0 BeddingLight to dark gray clay with cm-scale, fine-grained sand lenses throughout with local lignite layers. Outcrop is approximately 70 feet in length.41 41.1 34.85572 -78.8362453Black Creek Confining UnitNR10clayNA0 0Light to dark gray clay with cm-scale, fine-grained sand lenses throughout with local lignite layers. Outcrop is approximately 50 feet in length.Notes:1. * indicates multiple station ID's at the same outcrop.2. ** indicates station locations at different outcrops but within the same vicinity.3. Latitude and longitude were measured by Parson's field staff using Arc Collector in conjuction with the Garmin Glow GPS.4. Elevations were estimated from 2018 USGS topographic map. 5. ft above MSL - feet above mean sea level.6. Strikes and dips were measured using a Brunton compass.7. Seep ID's are referenced from Geosyntec 2019, Seeps and Creeks Investigation Report. Chemours Fayetteville Works. 26 August 2019.8. Soil classification are based off of Unified Soil Classification Systemft - feetNAVD 88 - North American Vertical Datum of 1988 NA - not applicableNM - not measuredNR - not recordedTR0795Page 4 of 4October 2019 TABLE 6-2BLACK CREEK AQUIFER HPT/EC AND SITE BORING LOCATIONSChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.LocationNorthing(ft NAD83)Easting(ft NAD83)Ground Surface Elevation (ft NAVD88)Total depth (ft bgs)Location notesHP-1400,542.772,051,769.545345co-located with PIW-1 soil boringHP-2399,790.412,050,646.3714262co-located with BCA-01HP-3399,855.352,052,002.665136HP-4399,557.562,052,156.194933co-located with LTW-01HP-5399,072.612,052,255.154941HP-6398,840.962,052,354.264847co-located with LTW-02HP-7398,622.532,051,900.107613.5HP-8398,122.182,052,551.754939co-located with LTW-03, PIW-6 soil boringHP-9397,291.742,052,580.524847co-located with LTW-04HP-10396,797.172,052,590.104544co-located with PIW-7 soil boringHP-11396,461.162,052,738.024848co-located with LTW-05HP-12396,160.772,052,239.557755co-located with PIW-9DHP-13395,108.742,052,293.917452co-located with PIW-10 soil boringHP-14397,002.022,052,566.934645HP-15396,640.142,052,695.994548HP-16395,745.632,052,301.197050HP-17398,518.902,051,952.487238co-located with PIW-5S and PW-10HP-18398,293.082,052,261.924644HP-19397,889.292,052,569.275047HP-20398,154.532,052,324.274745HP-21398,820.852,052,095.974846HP-22398,965.012,052,327.945037HP-23399,254.492,052,205.625035HP-24399,707.382,052,092.325032co-located with PIW-3 soil boringHP-25400,010.142,051,444.059044HP-26400,478.432,051,814.365544HP-27399,929.022,051,252.789244co-located with PIW-2 soil boringHP-28399,842.952,050,933.4011842HP-29395,470.222,052,350.897045HP-30395,945.142,052,345.556943HP-32396,411.922,052,674.494445co-located with PIW-8 soil boringPIW-1 Soil Boring 400,540.612,051,792.5950.7842.5PIW-2 Soil Boring 399,922.752,051,317.6498.1679PIW-3 Soil Boring 399,711.752,052,088.8050.5130PIW-4 Soil Boring 398,817.362,052,102.8250.3740PIW-5 Soil Boring398,520.382,051,951.2672.6845PIW-6 Soil Boring 398,118.142,052,540.5749.8540PIW-7 Soil Boring 396,787.002,052,589.4945.8150PIW-8 Soil Boring 396,403.382,052,682.0245.9240PIW-9 Soil Boring 396,148.112,052,251.1076.8049PIW-10 Soil Boring395,104.672,052,297.0473.3259Notes:4. LIDAR estimated ground surface elevations underestimate surveyed ground surface elevations by 0.4 - 1.0 feet. ft bgs - feet below ground surfaceft - feetNAD 83 - North America Datum 1983NAVD 88 - North American Vertical Datum of 1988 1. Locations for HPT borings (HP-1 through HP-32) were not surveyed and are approximate. PIW-soil boring locations reported correspond to surveyed co-ordinates for a shallow well location where a shallow and a deep well were co-located. PIW-well locations are provided in Table 5.2. Ground surface elevations for HPT borings are estimated from LIDAR ground surface elevations. LIDAR ground surface elevation from 20-Foot DEM Elevation Service collected by NC Floodplain Mapping Program and processed by NC DOT - GIS Unit.Service URL:https://services.nconemap.gov/secure/rest/services/Elevation/DEM20ft_DEM/ImageServer last accessed 6-19-2019 23:243. Ground surface elevations for PIW-soil borings correspond to surveyed co-ordinates for a shallow well location where a shallow and a deep well were co-located. PIW-well ground surface elevations are provided in Table 6-3.TR0795Page 1 of 1October 2019 TABLE 6-3 WELL CONSTRUCTION DETAILSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Area Well IDNorthing(ft, NAD83)Easting (ft, NAD83)InstallationDateCasing ConstructionCasing Diameter(in)Well Casing Depth(ft)Screened Interval(ft)Filter Pack Interval(ft)Bentonite Seal Interval(ft)Grout Interval (ft)Ground Elevation (ft NAVD88)TOC Elevation(ft NAVD88)AquiferSampled BetweenJun 1, 2019 and Sept. 20, 2019?Onsite BCA-01399,780.06 2,050,662.2211/20/2017 PVC 2 101.0 91 to 101 88 to 101 83 to 88 0 to 83143.26 146.3 Black Creek Aquifer YesOnsite BCA-02396,242.32 2,051,062.2111/16/2017 PVC 2 102.0 92 to 102 89 to 102 84 to 89 0 to 84145.20 148.42 Black Creek Aquifer YesOnsite BCA-03R398,582.23 2,049,522.2211/7/2018 PVC 298.0 88 to 98 85.1 to 98 98 to 108 / 82.5 to 85.1 0 to 82.5148.15 150.82 Black Creek Aquifer YesOnsite BCA-04395,877.67 2,047,823.1111/28/2017 PVC 2 104.0 94 to 104 91 to 104 84 to 91 0 to 84147.07 150.24 Black Creek Aquifer YesOnsite FTA-01397,907.50 2,049,373.6111/14/2002 PVC 222.0 12.0-22.0 10.0-22.0 8.0-10.0 0.0-8.0147.20 150.63 Perched ZoneYesOnsite FTA-02397,786.43 2,049,206.2711/13/2002 PVC 2 12.0-22.0 11.5-21.5 9.5-21.5 7.5-21.5 0.0-7.5NM 150.28 Perched ZoneYesOnsite FTA-03397,767.09 2,049,313.8611/13/2002 PVC 222.0 12.0-22.0 10.0-22.0 8.0-10.0 0.0-8.0147.58 151.08 Perched ZoneYesOnsite INSITU-01401,658.20 2,046,077.3112/13/2005 PVC 3/4 17.0 7.0-17.0 7.0-17.0NA0.0-7.0115.99 118.2 Surficial AquiferYesOnsite INSITU-02 401,863.46 2,049,136.6212/13/2005 PVC 3/4 17.0 7.0-17.0 7.0-17.0NA0.0-7.0110.71 113.12 Surficial Aquifer--Onsite LTW-01399,566.17 2,052,149.951/16/2006 PVC 226.0 11.0-26.0 9.0-26.0 6.0-9.0 0.0-6.051.22 53.83 Floodplain Deposits YesOnsite LTW-02398,848.36 2,052,354.371/16/2006 PVC 238.0 28.0-38.0 25.8-38.0 23.5-25.8 0.0-23.550.03 52.48 Black Creek Aquifer YesOnsite LTW-03398,115.15 2,052,557.521/5/2006 PVC 230.0 15.0-30.0 13.0-30.0 11.0-13.0 0.0-11.050.33 52.91 Floodplain Deposits YesOnsite LTW-04397,280.24 2,052,583.6012/22/2005 PVC 227.0 12.0-27.0 9.5-27.0 7.5-9.5 0.0-7.549.34 51.86 Floodplain Deposits YesOnsite LTW-05396,430.68 2,052,738.0612/21/2005 PVC 244.0 29.0-44.0 27.0-44.0 25.0-27.0 0.0-25.049.29 52.01 Black Creek Aquifer YesOnsite MW-1S397,080.31 2,049,120.732/28/1972 Stainless Steel 432.3 21.0-24.0 NANANA149.13 149.93 Perched ZoneYesOnsite MW-2S396,934.75 2,049,321.852/30/72 Stainless Steel 429.3 19.0-23.0 NANANA149.70 149.91 Perched ZoneYesOnsite MW-7S397,444.52 2,049,809.737/21/1983 Stainless Steel 215.6NANANANANM 147.47 Perched ZoneYesOnsite MW-8S397,096.48 2,049,867.777/23/1983 Stainless Steel 214.9NANANANANM 146.48 Perched Zone--Onsite MW-9S396,760.16 2,049,734.3011/3/1983 PVC 222.5 17.5-22.5 15.0-22.5 14.0-15.0 0.0-14.0151.77 154.39 Perched ZoneYesOnsite MW-11396,544.40 2,049,051.065/31/2005 PVC 221.5 11.5-21.5 9.3-21.5 7.3-9.3 0.0-7.3145.44 148.53 Perched Zone--Onsite MW-12S397,253.60 2,049,273.8911/1/1983 PVC 222.5 17.5-22.5 15.5-22.5 14.5-15.5 0.0-14.5149.89 152.06 Perched ZoneYesOnsite MW-13D397,119.02 2,049,821.123/20/2013 PVC 267.0 57 to 67 54 to 67 50 to 54 0 to 50145.77 148.65 Surficial AquiferYesOnsite MW-14D396,974.49 2,049,074.563/21/2013 PVC 272.0 62 to 72 60 to 72 53.5 to 60 0 to 53.5146.48 149.73 Surficial AquiferYesOnsite MW-15DRR398,580.71 2,049,511.7511/8/2018 PVC 262.5 52.5 to 62.5 49 to 62.5 44 to 49 0 to 44148.05 150.92 Surficial AquiferYesOnsite MW-16D398,493.70 2,048,402.844/2/2013 PVC 282.0 72 to 82 69 to 82 82 to 87 / 65 to 69 0 to 65145.84 148.41 Surficial AquiferYesOnsite MW-17D398,401.74 2,047,366.504/3/2013 PVC 267.0 57 to 67 54 to 70 70 to 77 / 51 to 54 0 to 51145.80 146.117 Surficial AquiferYesOnsite MW-18D400,947.38 2,046,574.7211/17/2017 PVC 260.0 50 to 60 47 to 60 40 to 47 0 to 40 104.81 107.57 Surficial AquiferYesOnsite MW-19D401,151.33 2,048,272.9911/18/2017 PVC 256.0 46 to 56 43 to 56 38 to 43 0 to 38136.30 139.55 Surficial AquiferYesOnsite MW-20D400,791.28 2,048,733.9111/18/2017 PVC 275.0 65 to 75 62 to 73 58 to 62 0 to 58133.97 137.18 Surficial AquiferYesOnsite MW-21D399,501.70 2,047,074.9611/22/2017 PVC 282.0 72 to 82 68 to 82 62 to 68 0 to 62148.05 151.384 Surficial AquiferYesOnsite MW-22D398,518.18 2,048,362.6812/1/2017 PVC 672.0 52 to 72 49 to 72 43 to 49 0 to 49146.57 149.06 Surficial AquiferYesOnsite MW-23396,237.61 2,051,063.257/26/2018 PVC 214.5 9.5 to 14.5 7.5 14.5 4 to 7.5 0 to 4145.17 148.34 Perched ZoneYesOnsite MW-24397,303.94 2,048,767.697/26/2018 PVC 223.8 18.8 to 23.8 16 to 23.8 14 to 16 0 to 14147.11 150.31 Perched ZoneYesOnsite MW-25396,753.37 2,050,989.8210/23/2018 PVC 217.0 12 to 17 9 to 207 to 90 to 7145.00 147.59 Perched ZoneYesOnsite MW-26396,265.18 2,051,484.6710/22/2018 PVC 210.0 5 to 10 4 to 152 to 40 to 2144.90 147.7 Perched Zone--Onsite MW-27396,010.33 2,051,472.0010/22/2018 PVC 215.0 10 to 15 8 to 206 to 80 to 6144.39 146.83 Perched ZoneYesOnsite MW-28395,719.79 2,051,165.9310/22/2018 PVC 214.0 9 to 14 7 to 155 to 70 to 5141.52 144.7 Perched ZoneYesOnsite MW-30397,340.79 2,050,776.0910/23/2018 PVC 215.0 10 to 15 8 to 206 to 80 to 6144.95 147.67 Perched ZoneYesOnsite MW-31396,390.50 2,049,622.884/17/2019 PVC 222.0 17-22 14-1712-140-12145.48 147.699 Perched ZoneYesOnsite MW-32396,359.58 2,049,651.794/16/2019 PVC 218.5 13-18.5 10-18.58-100-8144.63 147.106 Perched ZoneYesOnsite MW-33396,337.51 2,049,678.564/16/2019 PVC 217.0 12-17 10-178-100-8144.28 146.82 Perched ZoneYesOnsite MW-34396,352.90 2,049,619.094/17/2019 PVC 222.0 17-22 14-2212-140-12145.17 147.972 Perched ZoneYesOnsite MW-35396,332.94 2,049,631.164/16/2019 PVC 219.0 14-19 12-1910-120-10145.03 147.541 Perched ZoneYesOnsite MW-36396,320.09 2,049,651.174/16/2019 PVC 217.0 12-17 10-178-100-8144.68 147.889 Perched ZoneYesOnsite NAF-01398,349.77 2,050,338.8112/5/2002 PVC 215.0 5.0-15.0 4.0-15.0 2.0-4.0 0.0-2.0146.61 149.66 Perched ZoneYesOnsite NAF-02398,662.80 2,050,640.8612/4/2002 Stainless Steel 215.0 5.0-15.0 4.0-15.0 2.0-4.0 0.0-2.0147.05 150.31 Perched ZoneYesTR0795Page 1 of 4October 2019 TABLE 6-3 WELL CONSTRUCTION DETAILSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Area Well IDNorthing(ft, NAD83)Easting (ft, NAD83)InstallationDateCasing ConstructionCasing Diameter(in)Well Casing Depth(ft)Screened Interval(ft)Filter Pack Interval(ft)Bentonite Seal Interval(ft)Grout Interval (ft)Ground Elevation (ft NAVD88)TOC Elevation(ft NAVD88)AquiferSampled BetweenJun 1, 2019 and Sept. 20, 2019?Onsite NAF-03398,580.65 2,050,755.4312/4/2002 Stainless Steel 2 15.0 5.0-15.0 4.0-15.0 2.0-4.0 0.0-2.0147.38 150.44 Perched ZoneYesOnsite NAF-04398,447.00 2,050,718.9512/4/2002 Stainless Steel 215.0 5.0-15.0 4.0-15.0 2.0-4.0 0.0-2.0147.90 148.1 Perched ZoneYesOnsite NAF-05A 398,641.22 2,051,024.85 10/10/2005 Stainless Steel 2NANANANANANANA Perched Zone--Onsite NAF-05B 398,660.23 2,051,021.81 10/12/2005 Stainless Steel 2NANANANANANANA Surficial Aquifer--Onsite NAF-06398,809.66 2,050,911.915/26/2005 Stainless Steel 2 12.75 2.75-12.75 2.0-12.75 0.25-2.0 0.0-0.25143.17 146.43 Perched ZoneYesOnsite NAF-07398,899.33 2,050,616.50 5/20/2005 Stainless Steel 215.5 5.5-15.5 3.0-15.5 1.0-3.0 0.0-1.0 146.73 149.69 Perched ZoneYesOnsite NAF-08A398,097.99 2,050,886.62 6/1/2005 Stainless Steel 215.0 5.0-15.0 3.0-15.0 1.0-3.0 0.0-1.0 145.54 148.82 Perched ZoneYesOnsite NAF-08B398,095.64 2,050,879.94 6/1/2005 Stainless Steel 253.5 43.5-53.5 41.5-53.5 39.5-41.5 0.0-39.5 145.62 148.86 Surficial Aquifer--Onsite NAF-09397,711.09 2,050,806.52 5/19/2005 PVC 217.0 7.0-17.0 5.0-17.0 3.0-5.0 0.0-3.0 146.52 149.29 Perched ZoneYesOnsite NAF-10397,612.57 2,050,423.15 5/19/2005 PVC 2 18.25 8.25-18.25 6.25-18.25 4.25-6.25 0.0-4.25 146.94 150 Perched ZoneYesOnsite NAF-11A 398,909.29 2,050,999.92 6/3/2005 PVC 27.5 2.5-7.5 2.0-7.5 0.5-2.0 0.0-0.5 137.55 140.59 Perched Zone--Onsite NAF-11B 398,911.13 2,050,995.88 6/5/2005 PVC 243.5 33.5-43.5 31.5-43.5 26.5-31.5 0.0-26.5 137.55 140.74 Surficial Aquifer--Onsite NAF-12 398,270.56 2,050,777.49 3/28/2013 PVC 223 18 to 23 16.2 to 23 13.1 to 16.2 0 to 13.1 NA 145.932 Perched ZoneYesOnsite NAF-13 398,370.49 2,051,260.72 10/16/2018 PVC 216 11 to 16 8.5 to 20 5 to 8.5 0 to 5 149.64 152.29 Perched Zone--Onsite PIW-1D 400,547.77 2,051,801.42 7/2/2019 PVC 229.5 24.5 to 29.5 23 - 30 20 - 23 0 - 20 49.53 52.33 Surficial AquiferYesOnsite PIW-1S 400,540.61 2,051,792.59 6/28/2019 PVC 217.8 7.8 - 17.8 6 - 182 - 60 - 2 50.78 54.198 Floodplain Deposits--Onsite PIW-2D 399,922.75 2,051,317.64 8/15/2019 PVC 250 40 - 50 38 - 50 36 - 38 0 - 36 98.16 100.85 Black Creek Aquifer YesOnsite PIW-3D 399,711.75 2,052,088.80 7/2/2019 PVC 224 19 - 24 17 - 24.8 15 - 17 0 - 15 50.51 53.315 Black Creek Aquifer YesOnsite PIW-4D 398,817.36 2,052,102.82 7/1/2019 PVC 237.3 32.3 - 37.3 30 - 38 28 - 30 0 - 28 50.37 53.041 Black Creek Aquifer YesOnsite PIW-5S 398,520.38 2,051,951.26 7/9/2019 PVC 219.8 9.8 - 19.8 8 - 20.26 - 80 - 6 72.68 75.188 Surficial AquiferYesOnsite PIW-6S 398,118.14 2,052,540.57 6/28/2019 PVC 228 18 - 28 16 - 28.2 14 - 16 0 - 14 49.85 53.359 Floodplain Deposits YesOnsite PIW-7D 396,787.69 2,052,595.37 6/26/2019 PVC 234 29 - 34 26 - 34.2 22 - 26 0 - 22 45.78 48.597 Black Creek Aquifer YesOnsite PIW-7S 396,787.00 2,052,589.49 6/25/2019 PVC 2177 - 17 5.2 - 18 2.2 - 5.2 0 - 2.2 45.81 48.392 Floodplain Deposits YesOnsite PIW-8D 396,403.38 2,052,682.02 6/26/2019 PVC 240.5 35.5 - 45.5 32 - 40.5 29 - 32 0 - 29 45.92 48.518 Black Creek Aquifer YesOnsite PIW-9D 396,155.97 2,052,250.91 7/2/2019 PVC 245 40 - 45 38.1 - 49 35.5 - 38.1 0 - 35.5 76.75 79.529 Black Creek Aquifer YesOnsite PIW-9S 396,148.11 2,052,251.10 6/26/2019 PVC 229.8 24.8 - 29.8 23 - 30 19 - 23 0 - 19 76.80 79.532 Surficial AquiferYesOnsite PIW-10DR 395,093.99 2,052,297.30 8/16/2019 PVC 260.5 53 - 58 50.7 - 60.5 48 - 50.7 0 - 48 73.29 75.91 Black Creek Aquifer YesOnsite PIW-10S 395,104.67 2,052,297.04 6/25/2019 PVC 2177 - 17 5.3 - 17.3 3 - 5.30 - 3 73.30 76.451 Surficial AquiferYesOnsite PW-01 399,064.80 2,049,654.30 7/30/2019 PVC 221 11 - 21 9 - 217 - 90 - 7 146.63 149.547 Perched ZoneYesOnsite PW-02 399,779.06 2,050,649.47 7/30/2019 PVC 260 50 - 60 47.5 - 60 45.5 - 47.5 0 - 45.5 143.76 146.431 Surficial AquiferYesOnsite PW-03 397,339.81 2,050,765.32 7/23/2019 PVC 245 35 - 45 33 - 45 31 - 33 0 - 31 144.97 147.967 Surficial AquiferYesOnsite PW-04 394,659.55 2,050,940.66 7/24/2019 PVC 227 17 - 27 15 - 27 13 - 15 0 - 13 94.74 97.751 Surficial AquiferYesOnsite PW-05 395,873.10 2,047,812.93 7/26/2019 PVC 275 65 - 75 63 - 75 60.5 - 63 0 - 60.5 147.16 150.336 Surficial AquiferYesOnsite PW-06 392,868.00 2,045,288.77 7/29/2019 PVC 229 19 - 29 17 - 29 15 - 17 0 - 15 144.76 147.691 Surficial AquiferYesOnsite PW-07 390,847.71 2,049,258.26 7/24/2019 PVC 238 28 - 38 26 - 38 23.5 - 26 0 - 23.5 144.90 148.16 Surficial AquiferYesOnsite PW-09 401,997.39 2,048,980.54 8/12/2019 PVC 254 44 - 54 42 - 54 40 - 42 0 - 40 74.76 72.03 Black Creek Aquifer YesOnsite PW-10R 398,516.12 2,051,936.59 8/9/2019 PVC 267 57 - 67 55 - 67 52 - 55 0 - 52 73.28 75.9 Black Creek Aquifer YesOnsite PW-11 394,354.36 2,052,226.72 7/25/2019 PVC 264 53 - 63 51 - 64 49 - 51 0 - 49 70.19 73.263 Black Creek Aquifer YesOnsite PW-12 399,500.45 2,047,063.51 8/1/2019 PVC 2119 109 - 119 106 - 119 103 - 106 0 - 103 148.05 150.61 Black Creek Aquifer YesOnsite PW-13 397,584.26 2,048,029.18 8/23/2019 PVC 2130 120 - 130 118 - 130 115 - 118 0 - 115 146.52 149.36 Black Creek Aquifer YesOnsite PW-14 397,325.65 2,050,766.36 8/27/2019 PVC 2146 136 - 146 134 - 146 131 - 134 0 - 131 145.13 147.97 Black Creek Aquifer YesOnsite PW-15R 398,900.88 2,051,011.75 8/14/2019 PVC 2120 110 - 120 108 - 120 105 - 108 0 - 105 133.33 136.14 Black Creek Aquifer YesOnsite PZ-11 398,646.25 2,049,820.94 3/12/2004 PVC 3/42015-20 15-2012-15NA 148.48 151.03 Perched ZoneYesOnsite PZ-12 399,094.96 2,048,981.78 3/12/2004 PVC 3/4 20.1 15.1-20.1 15.1-20.1 12.1-15.1 NA 148.31 150.91 Perched ZoneYesOnsite PZ-13 397,708.07 2,050,991.73 3/17/2004 PVC 3/4 12.1 7.1-12.1 7.1-12.1 4.1-7.1NA 146.69 149.2 Perched ZoneYesOnsite PZ-14 397,589.92 2,050,618.27 3/11/2004 PVC 3/414 9.0-14.0 9.0-14.0 6.0-9.0NA 146.75 148.38 Perched ZoneYesTR0795Page 2 of 4October 2019 TABLE 6-3 WELL CONSTRUCTION DETAILSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Area Well IDNorthing(ft, NAD83)Easting (ft, NAD83)InstallationDateCasing ConstructionCasing Diameter(in)Well Casing Depth(ft)Screened Interval(ft)Filter Pack Interval(ft)Bentonite Seal Interval(ft)Grout Interval (ft)Ground Elevation (ft NAVD88)TOC Elevation(ft NAVD88)AquiferSampled BetweenJun 1, 2019 and Sept. 20, 2019?Onsite PZ-15 396,805.09 2,050,112.02 3/11/2004 PVC 3/4 15.2 10.2-15.2 10.2-15.2 7.2-10.2 NA 146.50 148.79 Perched ZoneYesOnsite PZ-17 396,614.82 2,048,872.69 3/10/2004 PVC 3/4 26.1 21.1-26.1 21.1-26.1 18.1-21.1 NA 145.00 150.08 Perched Zone--Onsite PZ-19R 397,998.66 2,049,919.52 4/25/2019 PVC 22116-21 14-2110-140-10 147.62 150.046 Perched ZoneYesOnsite PZ-20R 398,185.81 2,049,784.60 4/25/2019 PVC 22015-20 12-208.5-12 0-8.5 148.15 151.29 Perched ZoneYesOnsite PZ-21R 398,445.16 2,049,883.13 4/29/2019 PVC 22217-22 13-229-130-9 147.77 150.674 Perched ZoneYesOnsite PZ-22 397,272.80 2,052,584.04 1/11/2006 PVC 3/446 36.0-46.0 34.0-46.0 32.0-34.0 0.0-32.0 49.03 51.81 Black Creek Aquifer YesOnsite PZ-24 396,117.94 2,050,744.07 10/18/2018 PVC 116 11 to 16 10 to 20 8 to 10 0 to 8 144.76 147.53 Perched ZoneYesOnsite PZ-25 396,753.94 2,050,991.05 10/18/2018 PVC 119 14 to 19 12.5 to 40 8 to 12.5 0 to 8 145.00 147.59 Perched Zone--Onsite PZ-26 396,059.78 2,050,382.35 10/18/2018 PVC 116 11 to 16 10 to 20 7 to 10 0 to 7 144.90 147.7 Perched ZoneYesOnsite PZ-27 395,922.11 2,050,376.76 10/19/2018 PVC 117 12 to 17 11 to 20 8 to 11 0 to 8 145.02 147.17 Perched ZoneYesOnsite PZ-28 396,304.55 2,049,933.79 10/18/2018 PVC 118 13 to 18 11 to 20 9 to 11 0 to 9 145.60 148.64 Perched ZoneYesOnsite PZ-29 396,371.49 2,049,768.94 10/18/2018 PVC 118 13 to 18 10.5 to 20 8.5 to 10.5 0 to 8.5 145.07 147.74 Perched ZoneYesOnsite PZ-31 396,428.73 2,049,594.36 4/23/2019 PVC 219 14-19 12-198.5-12 0-8.5 144.91 147.999 Perched ZoneYesOnsite PZ-32 396,418.47 2,049,713.79 4/23/2019 PVC 218 13-18 12.5-18 10-12.5 0-10 145.36 148.471 Perched ZoneYesOnsite PZ-33 396,308.92 2,049,707.66 4/15/2019 PVC 217.5 12.5-17.5 10-17.58-100-8 143.94 146.715 Perched ZoneYesOnsite PZ-34 396,292.05 2,049,595.04 4/15/2019 PVC 213.5 13.5-18.5 11-18.59-110-9 144.94 147.695 Perched ZoneYesOnsite PZ-35 398,232.64 2,050,020.49 4/29/2019 PVC 218 13-18 11-188-110-8 147.91 150.43 Perched ZoneYesOnsite SMW-01 395,295.75 2,043,679.19 1/23/2003 PVC 215 5.0-15.0 4.0-15.0 2.0-4.0 0.0-2.0 NA 136.81 Surficial AquiferYesOnsite SMW-02 399,983.75 2,050,654.77 1/23/2003 PVC 220 5.0-20.0 4.0-20.0 2.0-4.0 0.0-2.0 144.74 147.93 Perched ZoneYesOnsite SMW-02B 399,983.48 2,050,660.48 10/6/2005 PVC 253 43.0-53.0 40.0-53.0 35.0-40.0 0.0-35.0 142.28 145.211 Surficial Aquifer--Onsite SMW-03 399,778.25 2,049,445.96 6/4/2005 Stainless Steel 220 10.0-20.0 8.0-20.0 6.0-8.0 0.0-6.0 148.43 151.094 Perched Zone--Onsite SMW-03B 399,785.75 2,049,421.54 4/4/2013 PVC 282 72 to 82 69 to 82 65.5 to 69 0 to 65.5 147.00 150.43 Black Creek Aquifer YesOnsite SMW-04A 399,668.71 2,048,387.57 6/4/2005 Stainless Steel 234.5 19.5-34.5 17.5-34.5 15.5-17.5 0.0-15.5 145.46 148.09 Perched Zone--Onsite SMW-04B 399,667.12 2,048,390.30 10/5/2005 PVC 253 43.0-53.0 41.0-53.0 34.0-41.0 0.0-34.0 145.18 148.372 Surficial AquiferYesOnsite SMW-05 399,334.07 2,048,557.33 10/10/2005 PVC 220 10.0-20.0 8.0-20.0 6.0-8.0 0.0-6.0 144.17 148.099 Perched Zone--Onsite SMW-05P 399,338.61 2,048,559.26 2/21/2006 PVC 3/460 45.0-60.0 43.0-60.0 41.0-43.0 0.0-41.0 146.06 149.32 Surficial AquiferYesOnsite SMW-06 399,172.35 2,048,759.48 10/10/2005 PVC 222 12.0-22.0 10.0-22.0 8.0-10.0 0.0-8.0 147.92 150.97 Perched Zone--Onsite SMW-06B 399,144.74 2,048,764.94 4/3/2013 PVC 268 58 to 68 54.5 to 68 68 to 72 / 51 to 54.5 0 to 51 146.86 150.32 Surficial Aquifer--Onsite SMW-07 398,932.91 2,048,611.16 10/10/2005 PVC 223 13.0-23.0 11.0-23.0 8.5-11.0 0.0-8.5 147.74 147.64 Perched ZoneYesOnsite SMW-08 399,064.97 2,048,468.78 10/11/2005 PVC 231 21.0-31.0 18.5-21.0 14.5-18.5 0.0-14.5 147.93 151.017 Perched Zone--Onsite SMW-08B 399,058.33 2,048,478.84 3/28/2013 PVC 268 58 to 68 56 to 68 52.5 to 56 0 to 52.5 146.75 148.81 Surficial AquiferYesOnsite SMW-09 401,076.89 2,050,017.41 4/8/2013 PVC 262 52 to 62 49.5 to 62 62 to 67 / 45 to 49.5 0 to 45 138.16 141.43 Surficial AquiferYesOnsite SMW-10 402,307.31 2,047,923.84 3/25/2013 PVC 249 39 to 49 36.5 to 49 33 to 36.5 0 to 33 73.09 76.26 Surficial AquiferYesOnsite SMW-11 401,996.15 2,048,975.38 3/26/2013 PVC 223 13 to 23 11 to 23 8 to 11 0 to 8 69.04 71.95 Surficial AquiferYesOnsite SMW-12 401,314.20 2,051,007.22 3/27/2013 PVC 298 88 to 98 86 to 98 83 to 86 0 to 83 113.723 118.22 Black Creek Aquifer YesOffsite Bladen-1S 387,516.28 2,050,234.78 8/14/2019 PVC 2 10.25 5 - 10 3 - 10.25 1 - 30 - 1 81.57 81.31 Surficial Aquifer--Offsite Bladen-1D 387,519.56 2,050,248.83 8/13/2019 PVC 2 47.25 37 - 47 34 - 47.25 32 - 34 0 - 32 81.72 81.52 Black Creek Aquifer YesOffsite Bladen-2S 368,818.78 2,042,884.35 8/16/2019 PVC 220.6 10 - 20 8 - 20.6 43,624 0 - 6 143.01 142.62 Surficial AquiferYesOffsite Bladen-2D 368,824.41 2,042,879.78 8/15/2019 PVC 2 75.25 70 - 75 67 - 75.25 66 - 67 0 - 66 143.11 142.85 Black Creek Aquifer YesOffsite Bladen-3S 396,859.62 2,059,014.36 8/20/2019 PVC 2 15.25 5 - 15 3 - 15.25 1 - 30 - 1 79.40 78.84 Surficial AquiferYesOffsite Bladen-3D 396,854.29 2,059,007.99 8/19/2019 PVC 244 33.75 - 43.75 32 - 44 29 - 32 0 - 29 79.59 79.09 Black Creek Aquifer YesOffsite Bladen-4S 363,260.51 2,087,638.88 8/21/2019 PVC 215 4.75 - 14.75 43,539.00 1.5 - 3 0 - 1.5 64.65 64.26 Surficial AquiferYesOffsite Bladen-4D 363,252.43 2,087,638.29 8/21/2019 PVC 252 46.75 - 51.75 44.5 - 51.75 41.5 - 44.5 0 - 41.5 64.67 64.23 Black Creek Aquifer YesOffsite Cumberland-1S 431,464.38 2,011,074.92 9/13/2019 PVC 225 15 - 25 13 - 25 11 - 13 0 - 13 179.70 179.41 Surficial AquiferYesOffsite Cumberland-1D 431,457.26 2,011,072.83 9/12/2019 PVC 250 40 - 50 38 - 50 36 - 38 0 - 36 179.58 179.18 Black Creek Aquifer YesOffsite Cumberland-2S 449,976.40 2,074,022.29 9/12/2019 PVC 2177 - 17 5 - 173 - 50 - 3 133.87 133.61 Surficial AquiferYesTR0795Page 3 of 4October 2019 TABLE 6-3 WELL CONSTRUCTION DETAILSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Area Well IDNorthing(ft, NAD83)Easting (ft, NAD83)InstallationDateCasing ConstructionCasing Diameter(in)Well Casing Depth(ft)Screened Interval(ft)Filter Pack Interval(ft)Bentonite Seal Interval(ft)Grout Interval (ft)Ground Elevation (ft NAVD88)TOC Elevation(ft NAVD88)AquiferSampled BetweenJun 1, 2019 and Sept. 20, 2019?Offsite Cumberland-2D 449,984.84 2,074,020.57 9/12/2019 PVC 257 47 - 57 43 - 57 43 - 45 0 - 43 134.06 133.79 Black Creek Aquifer YesOffsite Cumberland-3S 423,251.95 2,060,414.73 9/12/2019 PVC 2149 - 14 7 - 145 - 70 - 5 83.87 83.62 Surficial AquiferYesOffsite Cumberland-3D 423,245.42 2,060,410.59 9/11/2019 PVC 227 22 - 27 20 - 27 18 - 20 0 - 18 83.59 83.34 Black Creek Aquifer YesOffsite Cumberland-4S 413,083.94 2,078,256.96 9/11/2019 PVC 220 10 - 20 8 - 206 - 80 - 6 124.15 123.93 Surficial AquiferYesOffsite Cumberland-4D 413,093.08 2,078,251.38 9/10/2019 PVC 267 57 - 67 55 - 67 53 - 55 0 - 53 124.09 123.79 Black Creek Aquifer YesOffsite Cumberland-5S 405,623.27 2,138,233.37 9/11/2019 PVC 224 14 - 24 12 - 24 10 - 12 0 - 10 107.00 106.65 Surficial AquiferYesOffsite Cumberland-5D 405,619.17 2,138,238.59 9/11/2019 PVC 257 52 - 57 49 - 57 47 - 49 0 - 49 107.02 106.67 Black Creek Aquifer YesOffsite Robeson-1S 381,405.51 2,020,158.29 9/9/2019 PVC 227 17 - 27 15 - 27 13 - 15 0 - 13 161.51 161.22 Surficial AquiferYesOffsite Robeson-1D 381,413.60 2,020,160.37 9/4/2019 PVC 253 42.75 - 52.75 41 - 53 39 - 41 0 - 39 161.23 160.93 Black Creek Aquifer YesNotes:1. Survey completed by Freeland-Clinkscales & Associates of NC.2. Northing and Easting provided in feet, State Plane Coordinates for North Carolina (zone 3200) in North American Datum of 1983.3. Ground surface and top of casing elevation reported in North American Vertical Datum of 1988.ft NAD83 - feet, State Plane Coordinate System North American Datum 1983ft NAVD88 - feet, North American Vertical Datum of 1988in - inchesft - feetft bgs - feet below ground surfaceNA - not availableNM - not measuredTR0795Page 4 of 4October 2019 TABLE 6-4 SUMMARY OF ESTIMATED HYDRAULIC CONDUCTIVITY Chemours Fayetteville Works, North Carolina Geosyntec Consultants NC P.C. K (cm/s) K (ft/d)Wells Included 3.23 x 10-4 0.9 LTW-01 4, LTW-03 4 9.89 x 10-3 28.0 SMW-12, LTW-02, BCA-02, BCA-04, BCA-01 1.86 x 10-3 5.3 LTW-05 Notes: cm/s - centimeters per second ft/d - indicates feet per day K - hydraulic conductivity 2. Geometric means calculated from both pneumatic and manual slug test results. No method bias was observed. Pneumatic slug tests were performed only at locations where well screen was fully saturated. Manual slug tests were performed at all other well locations. 3. LTW-04 results not included in calculating geometric mean because initial displacement for all tests at this well suspected to display oscillatory response likely due to inertial effects from water table across well screen. 4. Initial displacement response curve suspected to display double-straight line effect due to drainage from filter pack. Analytical solutions are fit to the second- straight line displacement curve representing post-filter drainage, aquifer response. Hydrogeologic Zone Geometric Mean Hydraulic Conductivity, K Floodplain Deposits Black Creek Aquifer Partially Screened across Floodplain and Black Creek Aquifer 1. Detailed slug test results, AQTESOLV inputs, displacement time curves and AQTESOLV outputs used to summarize results are included in Appendix E. TR0795 Page 1 of 1 October 2019 TABLE 6-5SURVEY OF TEMPERATURE DIFFERENTIALS IN CAPE FEAR RIVERChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC, P.C.Location Date Time of Readings X-coordinate (ft) Y-coordinate (ft) Water Depth (ft)6 Inches Above Sediment Surface (ºC)3 inches Above Sediment Surface (ºC)1 inch into Sediment Surface (ºC)Temperature Difference between Porewater and 6 inches Above Sediment Surface (ºC)Depth of Thalweg along Transect (ft)18/7/2019 854 2051927.95 400688.81 2428.4828.5 28.540.0625.2528/6/2019 16332051867.71 400672.672.2329.29 29.27 29.350.06NM38/9/2019 15082051864.40 400648.922.927.86 27.89280.14NM48/6/2019 16262051869.61 400603.983.8629.14 29.05 29.160.02NM58/7/2019 9052051941.74 400569.4922.7328.49 28.45 28.540.0525.2568/6/2019 16202051902.25 400479.863.1729.11 29.07 29.140.03NM78/7/2019 9132051981.06 400450.1820.9228.62 28.48 28.580.0421.6588/6/2019 16122051926.53 400382.755.3929.28 29.21 29.380.1NM98/7/2019 9342052053.27 400327.7124.2528.51 28.47 28.560.0524.35108/6/2019 16052051943.54 400270.551.7229.47 29.44 29.530.06NM118/7/2019 9572052010.65 400241.6522.328.56 28.53 28.620.06NM128/5/2019 15102052011.79 400163.918.528.78 28.73 28.820.04NM138/7/2019 10182052131.34 400119.7224.528.63 28.56 28.60.03NM148/5/2019 15222052069.26 400062.4811.528.8628.8 28.890.03NM158/7/2019 11392052126.57 399998.682328.81 28.63 28.790.0227.35168/5/2019 15312052117.71 399938.949.129.2529.2 29.270.02NM178/7/2019 11542052179.91 399886.9721.428.68 28.61 28.720.0426.35188/5/2019 15482052170.35 399811.832.429.26 29.24 29.410.15NM198/7/2019 12042052214.08 399811.7822.128.728.63 28.740.0426.35208/5/2019 16462052225.50 399737.2019.628.828.71 28.770.03NM218/7/2019 12112052256.29 399658.0522.928.828.74 28.810.0125.35228/5/2019 16532052243.48 399624.049.1329.0829.1 29.170.09NMTR0795Page 1 of 6October 2019 TABLE 6-5SURVEY OF TEMPERATURE DIFFERENTIALS IN CAPE FEAR RIVERChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC, P.C.Location Date Time of Readings X-coordinate (ft) Y-coordinate (ft) Water Depth (ft)6 Inches Above Sediment Surface (ºC)3 inches Above Sediment Surface (ºC)1 inch into Sediment Surface (ºC)Temperature Difference between Porewater and 6 inches Above Sediment Surface (ºC)Depth of Thalweg along Transect (ft)238/7/2019 1222 2052276.72 399585.31 20.428.77 28.72 28.780.0122.35248/6/2019 8212052276.14 399534.9113.7828.89 28.68 28.750.1422.35258/7/2019 12402052346.66 399454.9324.2228.76 28.68 28.770.0125.35268/6/2019 8282052334.43 399409.6012.1328.7328.728.80.07NM278/7/2019 12512052379.34 399359.1420.1528.81 28.75 28.820.0125.95288/6/2019 8352052381.06 399286.395.5728.74 28.72 28.780.04NM298/7/2019 13092052414.92 399258.4920.8628.76 28.72 28.810.0525.85308/6/2019 8412052405.69 399207.928.5328.81 28.76 28.840.03NM318/7/2019 13492052453.15 399143.0220.328.94 29.04 29.070.1325.35328/6/2019 8472052470.92 399026.469.1928.7328.7 28.790.06NM338/7/2019 14002052508.45 399016.9920.128.96 28.92 28.980.0222.95348/6/2019 8552052504.53 398929.0711.228.83 28.76 28.790.04NM358/7/2019 14212052532.25 398900.4920.228.93 28.89 28.970.0424.5368/6/2019 9012052523.62 398840.416.4228.65 28.61 28.750.123.35378/7/2019 14212052555.07 398784.0417.528.96 28.92 28.990.0323.35388/6/2199102052558.47 398724.326.828.88 28.94 28.820.06NM398/8/2019 9202052599.58 398716.1322.528.95 28.94 29.010.0621.75408/7/2019 14302052600.19 398696.342228.7828.9 28.980.221.65418/8/2019 9132052638.07 398694.6020.728.94 28.94 29.010.0722.5428/8/2019 9012052574.46 398657.6411.4228.98 29.04 29.050.0724.15438/8/2019 9072052625.36 398651.5621.728.928.95 29.010.1124.15448/6/2019 9232052576.31 398616.161.9527.925.88 24.453.45NMTR0795Page 2 of 6October 2019 TABLE 6-5SURVEY OF TEMPERATURE DIFFERENTIALS IN CAPE FEAR RIVERChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC, P.C.Location Date Time of Readings X-coordinate (ft) Y-coordinate (ft) Water Depth (ft)6 Inches Above Sediment Surface (ºC)3 inches Above Sediment Surface (ºC)1 inch into Sediment Surface (ºC)Temperature Difference between Porewater and 6 inches Above Sediment Surface (ºC)Depth of Thalweg along Transect (ft)458/6/2019 933 2052565.83 398609.02 0.8224.2720.5 20.623.65NM468/8/2019 9252052634.22 398591.5920.128.96 28.95 29.020.0623.5478/7/2019 17402052675.76 398528.4419.629.23 29.34 29.380.1523.35488/8/2019 9322052616.72 398516.3415.728.97 28.97 29.020.0522.75498/6/2019 9432052618.96 398477.2311.6628.55 28.29 28.240.31NM508/8/2019 9432052643.92 398455.5018.128.97 28.97 29.020.05NM518/8/2019 9502052789.66 398448.7719.328.95 28.93290.0523.55528/7/2109 17352052718.88 398401.6519.229.32 29.31 29.370.0522.45538/6/2019 9492052605.12 398373.591.8328.89 28.85 28.820.07NM548/8/2019 9572052795.08 398347.8220.828.93 28.94290.0721.65558/7/2019 17282052737.13 398280.6619.629.28 29.34 29.390.1121.85568/6/2019 9562052638.10 398253.941.7829.129.01 29.040.06NM578/8/2019 10042052837.14 398217.0720.1228.93 28.93 29.010.0822.35588/7/2019 17232052696.54 398176.4918.629.28 29.28 29.320.0421.45598/6/2019 10042052654.44 398152.472.2329.21 29.06 29.110.1NM608/8/2019 10102052815.45 398097.2119.3228.84 28.91 28.980.1421.15618/7/2019 17172052760.08 398064.461829.26 29.19 29.290.0321.45628/6/2019 10162052680.39 397995.581.3729.23 29.07 29.190.04NM638/8/2019 10172052854.15 397975.4720.828.91 28.94290.0922.15648/7/2019 17082052741.75 397951.8220.229.17 29.24 29.270.120.65658/6/2019 10302052705.78 397868.412.312928.92 29.110.11NM668/7/219 17002052743.54 397845.8820.129.29 29.31 29.310.0221.85TR0795Page 3 of 6October 2019 TABLE 6-5SURVEY OF TEMPERATURE DIFFERENTIALS IN CAPE FEAR RIVERChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC, P.C.Location Date Time of Readings X-coordinate (ft) Y-coordinate (ft) Water Depth (ft)6 Inches Above Sediment Surface (ºC)3 inches Above Sediment Surface (ºC)1 inch into Sediment Surface (ºC)Temperature Difference between Porewater and 6 inches Above Sediment Surface (ºC)Depth of Thalweg along Transect (ft)678/8/2019 1026 2052812.81 397827.23 18.2228.89 28.99 29.050.1622.65688/6/2019 10392052729.84 397753.402.1628.94 28.98 29.070.13NM698/7/2019 16572052779.36 397700.7219.729.22 29.22 29.260.0421.15708-Aug10352052721.38 397674.710.9629.29 29.26 29.350.0621.15718/6/2019 10472052732.24 397632.421.1728.96 29.07 29.180.22NM728/8/2019 11142052787.90 397628.952129.02 28.99 29.040.0222.65738/8/2019 11322052727.29 397588.400.827.87 24.41 22.625.25NM748-Aug11482052728.34 397586.320.929.61 29.46 29.390.22NM758/7/2019 16442052783.78 397572.9120.929.08 29.21 29.120.0423.5768/8/2019 11192052773.98 397546.7211.5328.99 28.99 29.080.09NM778/6/2019 13322052754.05 397515.071.6729.94 29.86 29.920.02NM788/7/2019 16332052789.22 397426.7219.129.129.1 29.160.0622.85798/6/2019 15512052783.81 397365.657.8429.26 29.18 29.30.04NM808/7/2019 16242052809.44 397289.0322.629.18 29.16 29.170.0123.95818/6/2019 14442052780.80 397242.452.829.52 29.51 29.50.02NM828/7/2019 16162052817.47 397160.431929.11 29.07 29.140.0323.35838/6/2019 14362052794.61 397107.691.3229.53 29.54 29.60.07NM848/7/2019 16102052819.35 397061.1013.129.129.08 29.130.0322.35858/6/2019 14292052815.50 396971.192.5629.51 29.49 29.580.07NM868/7/2019 16032052836.75 396947.3313.129.129.05 29.110.0123.35878/6/2019 14172052835.73 396883.714.729.17 29.07 29.280.11NM888/7/2019 15572052861.87 396840.0020.7928.98 28.94 29.020.0424.5TR0795Page 4 of 6October 2019 TABLE 6-5SURVEY OF TEMPERATURE DIFFERENTIALS IN CAPE FEAR RIVERChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC, P.C.Location Date Time of Readings X-coordinate (ft) Y-coordinate (ft) Water Depth (ft)6 Inches Above Sediment Surface (ºC)3 inches Above Sediment Surface (ºC)1 inch into Sediment Surface (ºC)Temperature Difference between Porewater and 6 inches Above Sediment Surface (ºC)Depth of Thalweg along Transect (ft)898/6/2019 1410 2052842.43 396784.31 5.7129.27 29.16 29.280.01NM908/7/2019 15462052877.37 396741.1123.2728.96 28.92290.0423.95918/6/2019 14032052853.13 396695.942.9329.45 29.37 29.320.13NM928/7/2019 15352052880.52 396668.1618.2228.94 28.88 28.960.0223.15938/8/2019 12222052851.42 396630.081.3429.7229.7 29.750.03NM948/6/2019 13532052864.10 396606.774.4229.68 29.48 29.370.31NM958/8/2019 12262052878.64 396604.3212.4229.21 29.22 29.220.01NM968/8/2019 12332052866.77 396581.151.2229.61 29.59 29.650.04NM978/9/2019 14.572052891.16 396543.3711.129.729.77 29.60.1NM988/8/2019 12452052916.85 396487.2120.229.13 29.12 29.170.0422.35998/6/2019 11352052873.66 396478.631.830.08 29.83 29.470.61NM1008/9/2019 14442052904.82 396390.5914.7529.53 29.66 29.690.1622.451018/6/2019 11442052892.59 396301.201.7230.07 30.05 30.080.01NM1028/9/2019 14312052917.29 396277.9813.229.64 29.54 29.710.0723.951038/6/2019 11542052897.30 396173.561.6829.829.74 29.660.14NM1048/9/2019 14182052914.55 396158.696.0529.63 29.62 29.350.2823.351058/8/2019 13282052902.18 396070.430.8429.5226.4 25.633.89NM1068/8/2019 13462052906.18 396065.651.153029.89 29.680.3222.851078/6/2019 12012052914.75 396065.353.7829.329.25 29.290.01NM1088/9/2019 13582052930.71 396018.0911.9429.3829.5 29.510.1321.85TR0795Page 5 of 6October 2019 TABLE 6-5SURVEY OF TEMPERATURE DIFFERENTIALS IN CAPE FEAR RIVERChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC, P.C.Location Date Time of Readings X-coordinate (ft) Y-coordinate (ft) Water Depth (ft)6 Inches Above Sediment Surface (ºC)3 inches Above Sediment Surface (ºC)1 inch into Sediment Surface (ºC)Temperature Difference between Porewater and 6 inches Above Sediment Surface (ºC)Depth of Thalweg along Transect (ft)1098/6/2019 1210 2052918.36 395957.91 3.8829.28 29.19 29.30.02NM1108/9/2019 13442052944.33 395923.9912.6929.63 29.57 29.460.1722.351118/6/2019 12202052926.60 395820.42229.79 29.75 29.630.16NM1128/9/2019 13362052947.62 395791.0112.1629.57 29.46 29.60.0321.651138/9/2019 13242052954.26 395729.0413.5529.31 29.29 29.330.0221.951148/6/2019 12292052927.99 395721.821.9529.71 29.62 29.630.08NM1158/9/2019 13052052920.02 395663.840.7223.96 22.97 22.751.21NM1168/8/2019 14102052925.27 395656.870.722.16 22.13 22.20.04NM1178/9/2019 12402052961.84 395617.9614.6129.16 29.24 29.190.0321.651188/6/2019 12402052932.01 395590.984.8429.23 29.11 29.150.08NM1198/6/2019 12472052938.48 395491.442.529.4229.3 29.370.05NMNotes:ºC - celsiusft - feetNM - not measuredGreen shading Indicates temperature differential > 0.5 ºCTR0795Page 6 of 6October 2019 TABLE 7-1ONSITE SOIL CHARACTERISTICSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Clay Silt Sand GravelPIW-1-24-25-20190627 PIW-1 24 25 Fine to medium grained sand SP-SC 4.6 0.0021 2.66 -- -- NP 17 9 2 89 0 35.6 1.7 0.6PIW-1-41.5-42.5-20190627PIW-1 41.5 42.5ClayCH -- 0.0053 2.66 57 27 30 17 67 16 17 0 47.9 1.4 0.9PIW-2D-Soil-24-25-20190815 PIW-2D 24 25ClayCH 4.2 0.0220 2.68 92 35 57 39 45 27 28 0 59 1.1 1.4PIW-2D-Soil-46-47-20190815 PIW-2D 46 47Silty sandSP-SM 4 0.0034 2.66 -- -- NP 27 4 7 89 0 41.5 1.6 0.7PIW-3-14-15-20190702PIW-3 14 15 Sand with fine to medium gravel GP -- 0.0012 2.65 -- -- NP 14 3 2 46 49 18.7 2.2 0.2PIW-3-24-25-20190702PIW-3 24 25 Gravelly sand with clay SP-SC -- 0.0100 2.63 -- -- NP 17 5 1 93 0 37 1.7 0.6PIW-4-13-14-20190701PIW-4 13 14Sandy clayCH -- 0.0120 2.66 102 43 59 27 48 30 22 0 54.1 1.2 1.2PIW-4-33-34.2-20190701PIW-4 33 34.2 Fine to medium grained sand SP-SM 3.9 0.0024 2.67 -- -- NP 13 2 5 93 0 26.1 2.0 0.4PIW-6-19-20-20190628PIW-6 19 20Clay with siltCL -- 0.0011 2.69 48 29 19 23 38 39 24 0 40.5 1.6 0.7PIW-7-24-25-20190625PIW-7 24 25 Fine to medium grained sand SP-SC 4.6 0.0013 2.64 39 18 21 20 12 5 83 0 39.6 1.6 0.7PIW-7-37-38-20190625PIW-7 37 38 Fine grained sand and silt SP-SM -- 0.0016 2.65 -- -- NP 14 3 2 95 0 32 1.8 0.5PIW-7-44-45-20190625PIW-7 44 45ClayCH -- 0.0015 2.67 61 25 36 20 58 19 23 0 35.9 1.7 0.6PIW-9-19-20-20190626PIW-9 19 20SandSP-SC 5.5 0.0006 2.66 -- -- NP 8 5 2 93 0 31.3 1.8 0.5PIW-10-42-43-20190624PIW-10 42 43ClayCH -- 0.0220 2.67 104 38 66 33 71 18 12 0 52.5 1.3 1.1PW-01-SOIL-14-15-20190730 PW-01 14 15Sand with siltSP 5.6 0.0013 2.68 -- -- NP 24 2 3 95 0 44.7 1.5 0.8PW-02-SOIL-14-15-20190729 PW-02 14 15 Clayey sand medium grained SC 5.2 0.0012 2.68 -- -- NP 19 10 4 87 0 -- 1.5 --PW-02-SOIL-16-17-20190729 PW-02 16 17Silty clayCH 4.9 0.0012 2.69 89 31 58 20 58 28 14 0 -- 1.3 --PW-02-SOIL-35-36-20190729 PW-02 35 36Clayey sandSC 4.7 0.0008 2.71 -- -- NP 13 4 13 83 0 -- 1.5 --PW-03-SOIL-6.5-7-20190723 PW-03 6.5 7Clayey sandSC 5.7 0.0031 2.66 29 18 11 9 18 9 73 0 -- 1.4 --PW-03-SOIL-16-17-20190723 PW-03 16 17ClayCH 4.7 0.0020 2.71 80 33 47 27 64 14 22 0 -- 1.1 --PW-03-SOIL-43-44-20190723 PW-03 43 44Silty sandSM 4.1 0.0033 2.68 -- -- NP 33 10 7 83 0 -- 1.4 --PW-04-SOIL-23-24-20190724 PW-04 23 24Silty sandSM 3.1 0.0069 2.69 -- -- NP 16 10 12 78 0 -- 1.4 --PW-04-SOIL-29-29.5-20190724 PW-04 29 29.5ClayCH 3.7 0.0360 2.72 67 32 35 23 50 23 28 0 -- 1.2 --PW-05-Soil-12-13-20190726PW-05 12 13Clayey sandSC 6.3 0.0011 2.67 38 23 15 9 18 14 69 0 -- 1.5 --PW-05-Soil-51-52-20190726PW-05 51 52Silty clayCH 4.4 0.0650 2.62 60 31 29 36 54 27 18 0 -- 1.2 --PW-05-Soil-76-77-20190726PW-05 76 77ClayCH 4.7 0.1000 2.66 90 37 53 56 51 42 7 0 -- 1.0 --PW-06-SOIL-16-17-20190726PW-06 16 17Sand with siltSP 5.3 0.0012 2.65 -- -- NP 13 4 4 92 0 -- 1.5 --PW-07-SOIL-14-15-20190724PW-07 14 15SandSP-SC 5.2 J <0.0011 2.65 -- -- -- 9 5.3 3.2 91.5 0 -- 1.6 --PW-07-SOIL-44-45-20190724PW-07 44 45Clay with sandCH 4.1 J 0.12 2.58 90 42 48 41.8 54.2 20.3 25.5 0 -- 1.22 --PW-09-SOIL-23-24-20190812PW-09 23 24Silty sandCH 4.3 0.025 2.63 75 37 38 32.7 50 35.9 14.1 0 56.1 1.16 1.3PW-09-SOIL-52-53-20190812PW-09 52 53 Clayey sand with siltSP-SM 6.1 0.0034 2.68 -- -- -- 24.4 3.2 10.2 85.5 1.1 41.5 1.56 0.7PW-10-SOIL-59-60-20190808PW-10* 59 60Silty claySC 5.4 0.0170 2.67 -- -- -- 26 27 18 55 0 43.6 1.5 0.8PW-11-SOIL-16-17-20190725 PW-11 16 17Sand with siltSW-SC 4.9 0.0007 2.68 -- -- NP 10 11 6 83 0 -- 1.5 --PW-11-SOIL-61-62-20190725 PW-11 61 62Sand with siltSC 4.1 0.0190 2.67 40 19 21 26 13 6 81 0 -- 1.5 --PW-12-SOIL-83-84-20190731 PW-12 83 84ClayCH 4.3 0.0370 2.67 93 40 53 27 61 30 9 0 58.2 1.1 1.4PW-12-SOIL-110-111-20190731PW-12110111Sand with siltSP-SC4.80.01102.67----NP256490043.41.50.8PW-13-SOIL-25-26-20190821PW-132526SandSP5.20.00122.67----NP143493045.61.50.8PW-13-SOIL-73-74-20190821PW-137374ClayCH4.50.05202.669138533054388058.11.11.4PW-13-SOIL-124-125-20190822PW-13124125Silty SandSM6.80.00142.66----NP187885045.31.50.8PW-14-SOIL-144-145-20190826PW-14144145Clayey sandSC5.70.00282.66----NP2131483042.91.50.8PW-15-SOIL-17.5-18-20190813PW-1517.518ClayCH4.00.02902.6310052483749483065.10.91.9PW-15-SOIL-38-39-20190813PW-153839Silty sandSM4.10.00072.7------373360038.51.70.6PW-15-SOIL-55-56-20190813PW-155556ClayCH4.10.05302.6768333535543314053.21.31.1PW-15-SOIL-112-113-20190813PW-15112113Silty sandSM4.10.00512.67----NP1871281036.21.70.6Visual DescriptionSample IDWell IDTop (ft bgs)Bottom(ft bgs)USCS ClassificationpH (s.u.)Liquid Limit of SoilsSpecific GravityFraction Organic Carbon (g/g)Porosity Calculation (%)Plastic Limit of SoilsIn Place Density (g/cc)Percent Moisture (%)Plasticity Index (PI)Grain Size Distribution (%)Void RatioTR0795Page 1 of 2October 2019 TABLE 7-1ONSITE SOIL CHARACTERISTICSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.PIW-1-24-25-20190627PIW-1 24 25 Fine to medium grained sand SP-SCPIW-1-41.5-42.5-20190627PIW-1 41.5 42.5ClayCHPIW-2D-Soil-24-25-20190815 PIW-2D 24 25ClayCHPIW-2D-Soil-46-47-20190815 PIW-2D 46 47Silty sandSP-SMPIW-3-14-15-20190702PIW-3 14 15 Sand with fine to medium gravel GPPIW-3-24-25-20190702PIW-3 24 25 Gravelly sand with clay SP-SCPIW-4-13-14-20190701PIW-4 13 14Sandy clayCHPIW-4-33-34.2-20190701PIW-4 33 34.2 Fine to medium grained sand SP-SMPIW-6-19-20-20190628PIW-6 19 20Clay with siltCLPIW-7-24-25-20190625PIW-7 24 25 Fine to medium grained sand SP-SCPIW-7-37-38-20190625PIW-7 37 38 Fine grained sand and silt SP-SMPIW-7-44-45-20190625PIW-7 44 45ClayCHPIW-9-19-20-20190626PIW-9 19 20SandSP-SCPIW-10-42-43-20190624PIW-10 42 43ClayCHPW-01-SOIL-14-15-20190730 PW-01 14 15Sand with siltSPPW-02-SOIL-14-15-20190729 PW-02 14 15 Clayey sand medium grained SCPW-02-SOIL-16-17-20190729 PW-02 16 17Silty clayCHPW-02-SOIL-35-36-20190729 PW-02 35 36Clayey sandSCPW-03-SOIL-6.5-7-20190723 PW-03 6.5 7Clayey sandSCPW-03-SOIL-16-17-20190723 PW-03 16 17ClayCHPW-03-SOIL-43-44-20190723 PW-03 43 44Silty sandSMPW-04-SOIL-23-24-20190724 PW-04 23 24Silty sandSMPW-04-SOIL-29-29.5-20190724 PW-04 29 29.5ClayCHPW-05-Soil-12-13-20190726PW-05 12 13Clayey sandSCPW-05-Soil-51-52-20190726PW-05 51 52Silty clayCHPW-05-Soil-76-77-20190726PW-05 76 77ClayCHPW-06-SOIL-16-17-20190726PW-06 16 17Sand with siltSPPW-07-SOIL-14-15-20190724PW-07 14 15SandSP-SCPW-07-SOIL-44-45-20190724PW-07 44 45Clay with sandCHPW-09-SOIL-23-24-20190812PW-09 23 24Silty sandCHPW-09-SOIL-52-53-20190812PW-09 52 53 Clayey sand with siltSP-SMPW-10-SOIL-59-60-20190808PW-10* 59 60Silty claySCPW-11-SOIL-16-17-20190725 PW-11 16 17Sand with siltSW-SCPW-11-SOIL-61-62-20190725 PW-11 61 62Sand with siltSCPW-12-SOIL-83-84-20190731 PW-12 83 84ClayCHPW-12-SOIL-110-111-20190731PW-12110111Sand with siltSP-SCPW-13-SOIL-25-26-20190821PW-132526SandSPPW-13-SOIL-73-74-20190821PW-137374ClayCHPW-13-SOIL-124-125-20190822PW-13124125Silty SandSMPW-14-SOIL-144-145-20190826PW-14144145Clayey sandSCPW-15-SOIL-17.5-18-20190813PW-1517.518ClayCHPW-15-SOIL-38-39-20190813PW-153839Silty sandSMPW-15-SOIL-55-56-20190813PW-155556ClayCHPW-15-SOIL-112-113-20190813PW-15112113Silty sandSMVisual DescriptionSample IDWell IDTop (ft bgs)Bottom(ft bgs)USCS Classification8.83.213.4Surficial Aquifer4.10.70.8Upper Cape Fear Confining Unit5.00.80.9Black Creek Confining UnitNotes:8.73.113.9Black Creek Aquifer1. * PW-10 was properly abandoned and replaced with PW-10R.52.30.246.4Floodplain Deposit2.61.546.6Black Creek Aquifer4.40.70.9Black Creek Confining Unit3. Coefficient of Uniformity (Cu) = D60 / D104.01.454.7Black Creek Aquifer4. Coefficient of Curvature (Cc) = (D30)2 / (D60 * D10)4.6 0.8 0.9 Floodplain Deposit8.9 3.5 4.0 Floodplain Deposit3.1 1.2 69.4 Black Creek Aquifer4.5 0.8 0.9 Upper Cape Fear Confining Unit3.2 1.1 43.5 Surficial Aquifer 7. Visual descriptions are transcribed from field logs.3.7 0.7 0.8 Black Creek Confining Unit8. USCS classifications are derived from laboratory data.2.11.227.4Perched Zone-- not measured 13.35.812.0Perched Zone% - percent 3.90.70.8Perched Claycc - cubic centimeter21.77.76.1Surficial AquiferCH - fat clay16.51.62.7Perched ZoneCL - lean clay4.40.70.9Perched Clayft bgs - feet below ground surface3.91.96.6Surficial Aquiferft/d - feet per day6.52.63.1Surficial Aquiferg - gram4.90.80.9Black Creek Confining UnitNP - no plasticity25.80.62.2Surficial AquiferSC - clayey sand 4.20.70.8Clay Lens in Surficial AquiferSM - silty sand3.50.10.8Black Creek Confining UnitSP - poorly graded sand4.51.736.7Surficial AquiferGP - poorly graded gravel4.51.833.6Surficial AquiferSW - well graded sand4.70.80.9Clay Lens in Surficial AquiferUSCS - Unified Soil Classification System3.89 0.73 0.79Black Creek Confining Unit13.7 5.36 12.76Black Creek Aquifer28.90.31.0Clay Lens in Black Creek Aquifer8.52.82.7Surficial Aquifer22.15.15.0Black Creek Aquifer3.60.70.8Clay Lens in Black Creek Aquifer3.91.916.7Black Creek Aquifer2.31.294.9Surficial Aquifer3.50.70.8Black Creek Confining Unit9.13.68.6Black Creek Aquifer23.84.86.0Black Creek Aquifer3.30.70.7Perched Clay23.80.51.0Surficial Aquifer3.80.70.8Black Creek Confining Unit20.32.94.7Black Creek Aquifer6. Atterberg limits (Liquid Limit and Plastic Limit) are only tested for fine-grained materials.Lithologic UnitK from Grain Size Geometric Mean (ft/d)2."USCS Classification" is the Unified Soil Classification System from the standard practice outlined in ASTM D2487-17.5. Hydraulic Conductivity (K) from grain size calculated using HydrogeoSieveXL (Devlin, 2015).Coefficient of Uniformity (Cu)Coefficient of Curvature (Cc)TR0795Page 2 of 2October 2019 TABLE 7-2 ONSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location PW-01 PW-01 PW-02 PW-03 Field Sample ID PW-01-SOIL-14-15-20190730 PW-01-SOIL-11-12-20190731 PW-02-SOIL-14-15-20190729 PW-03-SOIL-6.5-7-20190723 Sample Date 7/30/2019 7/31/2019 7/29/2019 7/23/2019 QA/QC -------- Vadose Zome Sample*Y Y Y Y Depth (ft)14-15 11-12 14-15 6.5-7 SDG 200-49879-2 200-49879-2 200-49846-2 200-49745-3 Lab Sample ID 200-49879-1 200-49879-3 200-49846-2 200-49745-1 Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod)1,800 1,200 1,500 1,700 PFMOAA 1,300 <1,000 <1,000 UJ <1,000 PFO2HxA 1,300 <1,000 <1,000 UJ 1,290 U PFO3OA <1,000 <1,000 <1,000 UJ <1,000 PFO4DA <1,000 <1,000 <1,000 UJ <1,000 PFO5DA <1,000 <1,000 <1,000 1,160 U PMPA <1,000 <1,000 <1,000 2,460 U PEPA <1,000 <1,000 <1,000 <1,000 PFESA-BP1 <1,000 <1,000 <1,000 <1,000 PFESA-BP2 <1,000 <1,000 <1,000 <1,000 Byproduct 4 <1,000 UJ <1,000 R <1,000 R <1,000 R Byproduct 5 <1,000 UJ <1,000 R <1,000 R <1,000 R Byproduct 6 <1,000 <1,000 <1,000 <1,000 NVHOS <1,000 <1,000 <1,000 <1,000 EVE Acid <1,000 <1,000 <1,000 <1,000 Hydro-EVE Acid <1,000 <1,000 <1,000 UJ <1,000 R-EVE <1,000 UJ <1,000 R <1,000 R <1,000 R PES <1,000 <1,000 <1,000 <1,000 PFECA B <1,000 <1,000 <1,000 UJ <1,000 PFECA-G <1,000 <1,000 <1,000 UJ <1,000 Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate <200 <200 <200 <200 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)<2,000 <2,000 <2,000 <2,000 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)<2,000 <2,000 <2,000 <2,000 6:2 Fluorotelomer sulfonate <2,000 <2,000 <2,000 <2,000 ADONA <210 <210 <210 <210 F-53B Major <200 <200 <200 <200 F-53B Minor <200 <200 <200 <200 NaDONA <210 <210 <210 <210 N-ethyl perfluorooctane sulfonamidoacetic acid <2,000 <2,000 <2,000 <2,000 N-methyl perfluorooctane sulfonamidoacetic acid <2,000 <2,000 <2,000 <2,000 Perfluorobutane Sulfonic Acid <200 <200 <200 <200 Perfluorobutanoic Acid <200 <200 <200 <200 Perfluorodecane Sulfonic Acid <200 <200 <200 <200 Perfluorodecanoic Acid <200 <200 <200 <200 Perfluorododecane sulfonic acid (PFDoS)<200 <200 <200 <200 Perfluorododecanoic Acid <200 <200 <200 <200 Perfluoroheptane sulfonic acid (PFHpS)<200 <200 <200 <200 Perfluoroheptanoic Acid <200 <200 <200 <200 Perfluorohexadecanoic acid (PFHxDA)<200 <200 <200 <200 Perfluorohexane Sulfonic Acid <200 <200 <200 <200 Perfluorohexanoic Acid <200 <200 <200 <200 Perfluorononanesulfonic acid <200 <200 <200 <200 Perfluorononanoic Acid <200 <200 <200 <200 Perfluorooctadecanoic acid <200 <200 <200 <200 Perfluorooctane Sulfonamide <200 <200 <200 <200 Perfluoropentane sulfonic acid (PFPeS)<200 <200 <200 <200 Perfluoropentanoic Acid <200 <200 <200 <200 Perfluorotetradecanoic Acid <200 <200 <200 <200 Perfluorotridecanoic Acid <200 <200 <200 <200 Perfluoroundecanoic Acid <200 <200 <200 <200 PFOA <200 <200 <200 <200 PFOS <500 <500 <500 <500 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <1,000 <1,000 <1,000 <1,000 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <1,000 <1,000 <1,000 <1,000 N-ethylperfluoro-1-octanesulfonamide <1,000 <1,000 <1,000 <1,000 N-methyl perfluoro-1-octanesulfonamide <1,000 <1,000 <1,000 <1,000 Notes: 1. Associated equipment blank and field blank results reported in Table 7-3. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet J - Analyte detected. Reported value may not be accurate or precise ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported TR0795 Page 1 of 5 October 2019 TABLE 7-2 ONSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location Field Sample ID Sample Date QA/QC Vadose Zome Sample* Depth (ft) SDG Lab Sample ID Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: 1. Associated equipment blank and field blank results reported in Table 7-3. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet J - Analyte detected. Reported value may not be accurate or precise ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported PW-05 PW-06 PW-07 PW-07 PW-05 Soil-12-13-20190726 PW-06-SOIL-16-17-20190729 DUP1-072419 PW-07SOIL-14-15-20190724 7/26/2019 7/29/2019 7/24/2019 7/24/2019 ----Field Duplicate -- Y Y Y Y 12-13 16-17 14-15 14-15 200-49809-2 200-49846-2 200-49770-2 200-49770-2 200-49809-1 200-49846-1 200-49770-5 200-49770-3 850 <250 <250 <250 <1,000 R <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 R <1,000 R <1,000 R <1,000 R <1,000 R <1,000 R <1,000 R <1,000 R <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 R <1,000 R <1,000 R <1,000 R <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <200 UJ <200 <200 <200 <2,000 UJ <2,000 <2,000 <2,000 <2,000 UJ <2,000 <2,000 <2,000 <2,000 UJ <2,000 <2,000 <2,000 <210 <210 <210 <210 <200 <200 <200 <200 <200 <200 <200 <200 <210 <210 <210 <210 <2,000 UJ <2,000 <2,000 <2,000 <2,000 UJ <2,000 <2,000 <2,000 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <500 UJ <500 <500 <500 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 TR0795 Page 2 of 5 October 2019 TABLE 7-2 ONSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location Field Sample ID Sample Date QA/QC Vadose Zome Sample* Depth (ft) SDG Lab Sample ID Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: 1. Associated equipment blank and field blank results reported in Table 7-3. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet J - Analyte detected. Reported value may not be accurate or precise ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported PW-09 PW-09 PW-10 PW-10 PW-09-SOIL-10-11-20190812 PW-09-SOIL-8.5-9-20190812 PW-10-SOIL-3.5-4-20190808 PW-10-SOIL-8-8.5-20190808 8/12/2019 8/12/2019 8/8/2019 8/8/2019 -------- Y Y Y Y 10-11 8.5-9 3.5-4 8-8.5 200-50062-2 200-50062-2 200-50014-2 200-50014-2 200-50062-1 200-50062-2 200-50014-1 200-50014-2 <250 <250 570 28,000 <1,000 UJ <1,000 UJ <1,000 7,300 <1,000 UJ <1,000 UJ <1,000 10,000 J <1,000 UJ <1,000 UJ <1,000 4,000 <1,000 UJ <1,000 UJ <1,000 4,700 <1,000 UJ <1,000 UJ 1,260 U 5,200 <1,000 UJ <1,000 UJ <1,000 27,000 J <1,000 UJ <1,000 UJ <1,000 13,000 J <1,000 UJ <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 UJ <1,000 1,400 <1,000 R <1,000 R <1,000 R <1,000 R <1,000 R <1,000 R <1,000 R <1,000 R <1,000 UJ <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 UJ <1,000 1,500 <1,000 R <1,000 R <1,000 R <1,000 R <1,000 UJ <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 UJ <1,000 <1,000 <200 <200 <200 <200 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <210 <210 <210 <210 <200 <200 <200 <200 <200 <200 <200 <200 <210 <210 <210 <210 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 310 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <500 <500 <500 <500 ----<1,000 <1,000 ----<1,000 <1,000 ----<1,000 <1,000 ----<1,000 <1,000 TR0795 Page 3 of 5 October 2019 TABLE 7-2 ONSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location Field Sample ID Sample Date QA/QC Vadose Zome Sample* Depth (ft) SDG Lab Sample ID Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: 1. Associated equipment blank and field blank results reported in Table 7-3. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet J - Analyte detected. Reported value may not be accurate or precise ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported PW-11 PW-12 PW-12 PW-13 PW-11-SOIL-16-17-20190725 PW-12-SOIL-36-37-20190731 PW-12-SOIL-45-46-20190731 PW-13-Soil-25-26-20190821 7/25/2019 7/31/2019 7/31/2019 8/21/2019 -------- Y N N Y 16-17 36-37 45-46 25-26 200-49801-2 200-49879-2 200-49879-2 200-50221-2 200-49801-1 200-49879-4 200-49879-5 200-50221-1 620 830 <250 <250 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 R <1,000 R <1,000 UJ <1,000 <1,000 R <1,000 R <1,000 UJ <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 R <1,000 R <1,000 R <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <200 <200 <200 UJ <200 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <210 <210 <210 <210 <200 <200 <200 <200 <200 <200 <200 <200 <210 <210 <210 <210 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 UJ <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <500 <500 <500 <500 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 TR0795 Page 4 of 5 October 2019 TABLE 7-2 ONSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location Field Sample ID Sample Date QA/QC Vadose Zome Sample* Depth (ft) SDG Lab Sample ID Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: 1. Associated equipment blank and field blank results reported in Table 7-3. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet J - Analyte detected. Reported value may not be accurate or precise ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported PW-15 PW-15-SOIL-38-39-20190813 8/13/2019 -- N 38-39 200-50083-2 200-50083-2 <250 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <200 <2,000 <2,000 <2,000 <210 <200 <200 <210 <2,000 <2,000 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <500 <1,000 <1,000 <1,000 <1,000 TR0795 Page 5 of 5 October 2019 TABLE 7-3 ONSITE SOIL ANALYTICAL RESULTS - QUALITY CONTROL SAMPLES Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location DRILL WATER*EB EB EB Field Sample ID DRILL WATER-20190731 PW-EQBLK-1-20190725 PW-EQBLK-2-20190726 PW-EQBLK-3 Sample Date 7/31/2019 7/25/2019 7/26/2019 7/30/2019 QA/QC --Equipment Blank Equipment Blank Equipment Blank Depth (ft)---- SDG 200-49879-2 200-49801-2 200-49809-2 200-49879-2 Lab Sample ID 200-49879-8 200-49801-3 200-49809-4 200-49879-2 Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod)17 <4 <3.6 <4 PFMOAA <5 --<5 <5 PFO2HxA 10 --<2 <2 PFO3OA <2 --<2 <2 PFO4DA <2 --<2 <2 PFO5DA <2 --<2 <2 PMPA 130 --<10 <10 PEPA <20 --<20 <20 PFESA-BP1 <2 --<2 <2 PFESA-BP2 6.7 --<2 <2 Byproduct 4 <2 --<2 <2 Byproduct 5 <2 --<2 <2 Byproduct 6 <2 --<2 <2 NVHOS <2 --<2 <2 EVE Acid <2 --<2 <2 Hydro-EVE Acid <2 --<2 <2 R-EVE <2 --<2 <2 PES <2 --<2 <2 PFECA B <2 --<2 <2 PFECA-G <2 --<2 <2 Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate <2 <2 <1.8 <2 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)<20 <20 <18 <20 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)<20 <20 <18 <20 6:2 Fluorotelomer sulfonate <20 <20 <18 <20 ADONA <2.1 <2.1 <1.9 <2.1 F-53B Major <2 <2 <1.8 <2 F-53B Minor <2 <2 <1.8 <2 NaDONA <2.1 <2.1 <1.9 <2.1 N-ethyl perfluorooctane sulfonamidoacetic acid <20 <20 <18 <20 N-methyl perfluorooctane sulfonamidoacetic acid <20 <20 <18 <20 Perfluorobutane Sulfonic Acid 2.2 <2 <1.8 <2 Perfluorobutanoic Acid <2 <2 0.32 <2 Perfluorodecane Sulfonic Acid <2 <2 <1.8 <2 Perfluorodecanoic Acid <2 <2 <1.8 <2 Perfluorododecane sulfonic acid (PFDoS)<2 <2 <1.8 <2 Perfluorododecanoic Acid <2 <2 <1.8 <2 Perfluoroheptane sulfonic acid (PFHpS)<2 <2 <1.8 <2 Perfluoroheptanoic Acid <2 <2 <1.8 <2 Perfluorohexadecanoic acid (PFHxDA)<2 <2 <1.8 <2 Perfluorohexane Sulfonic Acid <2 <2 0.24 <2 Perfluorohexanoic Acid <2 <2 0.92 <2 Perfluorononanesulfonic acid <2 <2 <1.8 <2 Perfluorononanoic Acid <2 <2 <1.8 <2 Perfluorooctadecanoic acid <2 <2 <1.8 <2 Perfluorooctane Sulfonamide <2 <2 <1.8 <2 Perfluoropentane sulfonic acid (PFPeS)<2 <2 <1.8 <2 Perfluoropentanoic Acid <2 <2 <1.8 <2 Perfluorotetradecanoic Acid <2 <2 <1.8 <2 Perfluorotridecanoic Acid <2 <2 <1.8 <2 Perfluoroundecanoic Acid <2 <2 <1.8 <2 PFOA <2 <2 <1.8 <2 PFOS <2 <2 <1.8 <2 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <2 --<2 <2 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <2 --<2 <2 N-ethylperfluoro-1-octanesulfonamide <2 --<2 <2 N-methyl perfluoro-1-octanesulfonamide <2 --<2 <2 Notes: 1. Associated soil analytical results reported in Table 7-2. 2. * Drill Water was sourced from offsite fire hydrant. Water is from Bladen County Water System. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery Group SOP - standard operating procedure < - Analyte not detected above associated reporting limit. -- - No data reported TR0795 Page 1 of 1 October 2019 TABLE 7-4OFFSITE SOIL CHARACTERISTICSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.BLADEN-1S-081419Bladen-1S 67 Fine to medium grained Silty SandSC 4.0 0.0025 2.67 0 0NP20.3BLADEN-2D-081519-72-73Bladen-2D 72 73 Medium grained sand trace micaSP-SM4.2 0.0023 4.66 0 0NP33.8BLADEN-3D-Soil-081919-42-43Bladen-3D 42 43Sand with claySC6.0 0.0086 2.69 0 0NP22.6Bladen-3S-Soil-082019-5-6Bladen-3S 56Coarse grained sandSW-- ---- -- ----8.7Bladen-4S-Soil-082119-5-6Bladen-4S 56 Medium to coarse sand with gravelSP-SM7.8 0.0005 2.65 0 0NP20.1CUMBERLAND-1D-46-47-20190912 Cumberland-1D 46 47Fine Grained SandSP4.4 J 0.0077 2.67 -- ----27.5CUMBERLAND-1S-6-7-20190913Cumberland-1S 67Medium grained sand with siltSP5.2 J 0.0021 2.66 -- ----7.1Cumberland-2D-soil-49-50-0912Cumberland-2D 49 50Fine to medium grained sandSP5.6 0.0068 2.69 -- ----23.9Cumberland-2S-soil-5-6-0912Cumberland-2S 56Fine grained clayey sandSP-SM5.3 0.0080 2.65 -- ----19.3Cumberland-3D-24-25-20190911Cumberland-3D 24 25 Medium to coarse grained sandSP-SM5.0 0.0028 2.66 -- ----11.7Cumberland-4S-soil-5-6-0911Cumberland-4S 56Fine to medium grained sandSP-SC4.7 0.0018 2.68 -- ----14.3Cumberland-5D-54-55-20190911Cumberland-5D 54 55Fine grained sandSP-SM4.9 0.0160 2.63 -- ----17.8Robeson-1S-soil-15-16-20190909Robeson-1S 15 16Fine grained silty sandSP-SM8.2 0.0012 2.67 0 0NP18.4Notes:1. Laboratory results available as of 09/24/2019 are reported. Additional data will be presented in an addendum to this report.2."USCS Classification" is the Unified Soil Classification System from the standard practice outlined in ASTM D2487-17.3. Coefficient of Uniformity (Cu) = D60 / D104. Coefficient of Curvature (Cc) = (D30)2 / (D60 * D10)5. Hydraulic Conductivity (K) from grain size calculated using HydrogeoSieveXL (Devlin, 2015).6. Atterberg limits (Liquid Limit and Plastic Limit) are only tested for fine-grained materials.7. Visual descriptions are transcribed from field logs.8. USCS classifications are derived from laboratory data.-- not measured % - percent cc - cubic centimeterNP - no plasticityft/d - feet per dayg - gramUSCS - Unified Soil Classification Systemft bgs - feet below ground surfaceCH - fat clayCL - lean claySC - clayey sand SM - silty sandSP - poorly graded sandSW - well graded sandPlasticity Index (PI)Sample ID Well IDTop (ft bgs)Bottom(ft bgs)Visual DescriptionUSCS Classification pH (s.u.)Fraction Organic Carbon (g/g)Specific GravityLiquid Limit of SoilsPlastic Limit of SoilsPercent Moisture (%)TR0795Page 1 of 3October 2019 TABLE 7-4OFFSITE SOIL CHARACTERISTICSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.BLADEN-1S-081419Bladen-1S 67 Fine to medium grained Silty SandSC BLADEN-2D-081519-72-73Bladen-2D 72 73 Medium grained sand trace micaSP-SMBLADEN-3D-Soil-081919-42-43Bladen-3D 42 43Sand with claySCBladen-3S-Soil-082019-5-6Bladen-3S 56Coarse grained sandSWBladen-4S-Soil-082119-5-6Bladen-4S 56 Medium to coarse sand with gravelSP-SMCUMBERLAND-1D-46-47-20190912 Cumberland-1D 46 47Fine Grained SandSPCUMBERLAND-1S-6-7-20190913Cumberland-1S 67Medium grained sand with siltSPCumberland-2D-soil-49-50-0912Cumberland-2D 49 50Fine to medium grained sandSPCumberland-2S-soil-5-6-0912Cumberland-2S 56Fine grained clayey sandSP-SMCumberland-3D-24-25-20190911Cumberland-3D 24 25 Medium to coarse grained sandSP-SMCumberland-4S-soil-5-6-0911Cumberland-4S 56Fine to medium grained sandSP-SCCumberland-5D-54-55-20190911Cumberland-5D 54 55Fine grained sandSP-SMRobeson-1S-soil-15-16-20190909Robeson-1S 15 16Fine grained silty sandSP-SMNotes:1. Laboratory results available as of 09/24/2019 are reported. Additional data will be presented in an addendum to this report.2."USCS Classification" is the Unified Soil Classification System from the standard practice outlined in ASTM D2487-17.3. Coefficient of Uniformity (Cu) = D60 / D104. Coefficient of Curvature (Cc) = (D30)2 / (D60 * D10)5. Hydraulic Conductivity (K) from grain size calculated using HydrogeoSieveXL (Devlin, 2015).6. Atterberg limits (Liquid Limit and Plastic Limit) are only tested for fine-grained materials.7. Visual descriptions are transcribed from field logs.8. USCS classifications are derived from laboratory data.-- not measured % - percent cc - cubic centimeterNP - no plasticityft/d - feet per dayg - gramUSCS - Unified Soil Classification Systemft bgs - feet below ground surfaceCH - fat clayCL - lean claySC - clayey sand SM - silty sandSP - poorly graded sandSW - well graded sandSample IDWell IDTop (ft bgs)Bottom(ft bgs)Visual DescriptionUSCS ClassificationClay Silt Sand Gravel9.2 8.6 81.7 0.5 39.6 1.61 0.7 10.182.9 9.1 88 0 39.1 1.62 0.6 9.1710.6 7.3 82.1 0 46.2 1.44 0.9 5.89-- -- -- -- -- -- ----2.6 8.8 88.6 0 42 1.54 0.7 4.716.2 3.2 90.6 0 42.9 1.52 0.8 3.523.3 16.1 80.6 0 36.6 1.69 0.6 17.481.3 -0.03 94.6 4.1 44.7 1.48 0.8 1.617.8 14.8 77.4 0 40.7 1.57 0.7 19.121.2 6.7 91.2 1 47.3 1.4 0.9 2.437.9 3.3 88.8 0 39 1.63 0.6 6.345.5 10.7 83.8 0 54.9 1.19 1.25.32.6 7.1 90.3 0 41.9 1.55 0.7 2.53Grain Size Distribution (%)Porosity Calculation (%)In Place Density (g/cc)Void RatioCoefficient of Uniformity (Cu)TR0795Page 2 of 3October 2019 TABLE 7-4OFFSITE SOIL CHARACTERISTICSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.BLADEN-1S-081419Bladen-1S 67 Fine to medium grained Silty SandSC BLADEN-2D-081519-72-73Bladen-2D 72 73 Medium grained sand trace micaSP-SMBLADEN-3D-Soil-081919-42-43Bladen-3D 42 43Sand with claySCBladen-3S-Soil-082019-5-6Bladen-3S 56Coarse grained sandSWBladen-4S-Soil-082119-5-6Bladen-4S 56 Medium to coarse sand with gravelSP-SMCUMBERLAND-1D-46-47-20190912 Cumberland-1D 46 47Fine Grained SandSPCUMBERLAND-1S-6-7-20190913Cumberland-1S 67Medium grained sand with siltSPCumberland-2D-soil-49-50-0912Cumberland-2D 49 50Fine to medium grained sandSPCumberland-2S-soil-5-6-0912Cumberland-2S 56Fine grained clayey sandSP-SMCumberland-3D-24-25-20190911Cumberland-3D 24 25 Medium to coarse grained sandSP-SMCumberland-4S-soil-5-6-0911Cumberland-4S 56Fine to medium grained sandSP-SCCumberland-5D-54-55-20190911Cumberland-5D 54 55Fine grained sandSP-SMRobeson-1S-soil-15-16-20190909Robeson-1S 15 16Fine grained silty sandSP-SMNotes:1. Laboratory results available as of 09/24/2019 are reported. Additional data will be presented in an addendum to this report.2."USCS Classification" is the Unified Soil Classification System from the standard practice outlined in ASTM D2487-17.3. Coefficient of Uniformity (Cu) = D60 / D104. Coefficient of Curvature (Cc) = (D30)2 / (D60 * D10)5. Hydraulic Conductivity (K) from grain size calculated using HydrogeoSieveXL (Devlin, 2015).6. Atterberg limits (Liquid Limit and Plastic Limit) are only tested for fine-grained materials.7. Visual descriptions are transcribed from field logs.8. USCS classifications are derived from laboratory data.-- not measured % - percent cc - cubic centimeterNP - no plasticityft/d - feet per dayg - gramUSCS - Unified Soil Classification Systemft bgs - feet below ground surfaceCH - fat clayCL - lean claySC - clayey sand SM - silty sandSP - poorly graded sandSW - well graded sandSample ID Well IDTop (ft bgs)Bottom(ft bgs)Visual DescriptionUSCS Classification3.264.24 Surficial Aquifer3.0313.33 Black Creek Aquifer3.494.4 Black Creek Aquifer----Surficial Aquifer2.2212.8 Surficial Aquifer1.826.35 Black Creek Aquifer5.575.96 Surficial Aquifer1.06128.36 Black Creek Aquifer6.854.42 Surficial Aquifer1.1988.21 Black Creek Aquifer3.387.81 Surficial Aquifer2.695.5 Black Creek Aquifer1.5618.18 Surficial AquiferCoefficient of Curvature (Cc)K from Grain Size Geometric Mean (ft/d)Lithologic UnitTR0795Page 3 of 3October 2019 TABLE 7-5 OFFSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location BLADEN-1S BLADEN-1S BLADEN-2S BLADEN-3S Field Sample ID BLADEN-1S-081419 DUP-1-081419 BLADEN-2S-081619-9.5-10.5 Bladen-3S-Soil-082019-5-6 Sample Date 8/14/2019 8/14/2019 8/16/2019 8/20/2019 QA/QC --Field Duplicate ---- Vadose Zone Sample*N N N N Depth (ft)6-7 6-7 9.5-10.5 5-6 SDG 200-50099-2 200-50099-2 200-50148-2 200-50185-2 Lab Sample ID 200-50099-1 200-50099-2 200-50148-2 200-50185-2 Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod)<250 <250 <250 <250 UJ PFMOAA <1,000 <1,000 <1,000 UJ <1,000 PFO2HxA <1,000 <1,000 <1,000 UJ <1,000 PFO3OA <1,000 <1,000 <1,000 UJ <1,000 PFO4DA <1,000 <1,000 <1,000 <1,000 PFO5DA <1,000 <1,000 <1,000 <1,000 PMPA <1,000 <1,000 <1,000 <1,000 PEPA <1,000 <1,000 <1,000 <1,000 PFESA-BP1 <1,000 <1,000 <1,000 <1,000 PFESA-BP2 <1,000 <1,000 <1,000 <1,000 Byproduct 4 <1,000 UJ <1,000 UJ <1,000 R <1,000 R Byproduct 5 <1,000 UJ <1,000 UJ <1,000 R <1,000 R Byproduct 6 <1,000 <1,000 <1,000 <1,000 NVHOS <1,000 <1,000 <1,000 <1,000 EVE Acid <1,000 <1,000 <1,000 <1,000 Hydro-EVE Acid <1,000 <1,000 <1,000 UJ <1,000 R-EVE <1,000 R <1,000 R <1,000 R <1,000 R PES <1,000 <1,000 <1,000 <1,000 PFECA B <1,000 <1,000 <1,000 UJ <1,000 PFECA-G <1,000 <1,000 <1,000 UJ <1,000 Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate <200 UJ <200 <200 <200 UJ 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)<2,000 <2,000 <2,000 <2,000 UJ 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)<2,000 <2,000 <2,000 <2,000 UJ 6:2 Fluorotelomer sulfonate <2,000 <2,000 <2,000 <2,000 UJ ADONA <210 <210 <210 <210 UJ F-53B Major <200 <200 <200 <200 UJ F-53B Minor <200 UJ <200 <200 <200 UJ NaDONA <210 <210 <210 <210 UJ N-ethyl perfluorooctane sulfonamidoacetic acid <2,000 <2,000 <2,000 <2,000 UJ N-methyl perfluorooctane sulfonamidoacetic acid <2,000 <2,000 <2,000 <2,000 UJ Perfluorobutane Sulfonic Acid <420 340 <200 UJ <200 UJ Perfluorobutanoic Acid <200 <200 <200 <200 UJ Perfluorodecane Sulfonic Acid <200 <200 <200 <200 UJ Perfluorodecanoic Acid <200 <200 <200 <200 UJ Perfluorododecane sulfonic acid (PFDoS)<200 UJ <200 <200 <200 UJ Perfluorododecanoic Acid <200 <200 <200 <200 UJ Perfluoroheptane sulfonic acid (PFHpS)<200 <200 <200 <200 UJ Perfluoroheptanoic Acid <200 <200 <200 <200 UJ Perfluorohexadecanoic acid (PFHxDA)<200 <200 <200 <200 UJ Perfluorohexane Sulfonic Acid <200 <200 <200 <200 UJ Perfluorohexanoic Acid <200 <200 <200 <200 UJ Perfluorononanesulfonic acid <200 <200 <200 <200 UJ Perfluorononanoic Acid <200 <200 <200 <200 UJ Perfluorooctadecanoic acid <200 <200 <200 <200 UJ Perfluorooctane Sulfonamide <200 <200 <200 <200 UJ Perfluoropentane sulfonic acid (PFPeS)<200 <200 <200 <200 UJ Perfluoropentanoic Acid <200 <200 <200 <200 UJ Perfluorotetradecanoic Acid <200 <200 <200 <200 UJ Perfluorotridecanoic Acid <200 <200 <200 <200 UJ Perfluoroundecanoic Acid <200 <200 <200 <200 UJ PFOA <200 <200 <200 <200 UJ PFOS <500 <500 <500 <500 UJ 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <200 <200 <200 UJ <200 UJ 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <200 <200 <200 UJ <200 UJ N-ethylperfluoro-1-octanesulfonamide <200 <200 <200 <200 UJ N-methyl perfluoro-1-octanesulfonamide <200 <200 <200 <200 UJ Other Percent Moisture 20.3 11.3 12.2 8.7 Percent Solids --88.7 87.8 91.3 Notes: 1. Associated equipment blank and field blank results reported in Table 7-6. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported TR0795 Page 1 of 4 October 2019 TABLE 7-5 OFFSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location Field Sample ID Sample Date QA/QC Vadose Zone Sample* Depth (ft) SDG Lab Sample ID Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Other Percent Moisture Percent Solids Notes: 1. Associated equipment blank and field blank results reported in Table 7-6. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported BLADEN-4S CUMBERLAND-1S CUMBERLAND-2S Bladen-4S-Soil-082119-5-6 CUMBERLAND-1S-6-7-20190913 Cumberland-2S-soil-5-6-0912 8/21/2019 9/13/2019 9/12/2019 ------ N N N 5-6 6-7 5-6 200-50202-2 200-50567-2 200-50537-2 200-50202-1 200-50567-2 200-50537-2 <250 <250 <250 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 R <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <200 <200 <200 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <210 <210 <210 <200 <200 <200 <200 <200 <200 <210 <210 <210 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <500 <500 <500 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 20.1 7.1 19.3 ------ TR0795 Page 2 of 4 October 2019 TABLE 7-5 OFFSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location Field Sample ID Sample Date QA/QC Vadose Zone Sample* Depth (ft) SDG Lab Sample ID Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Other Percent Moisture Percent Solids Notes: 1. Associated equipment blank and field blank results reported in Table 7-6. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported CUMBERLAND-3S CUMBERLAND-4S CUMBERLAND-4S Cumberland-3S-soil-6-7-0912 Cumberland-4S-soil-5-6-0911 Dup1-20190911 9/12/2019 9/11/2019 9/11/2019 ----Field Duplicate N N N 6-7 5-6 5-6 200-50537-2 200-50518-2 200-50518-2 200-50537-4 200-50518-1 200-50518-2 <320 320 390 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 R <1,000 R <1,000 <1,000 R <1,000 R <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 R <1,000 R <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <200 <200 <200 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <210 <210 <210 <200 <200 <200 <200 <200 <200 <210 <210 <210 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <500 <500 <500 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 3.7 14.3 16.1 96.3 --83.9 TR0795 Page 3 of 4 October 2019 TABLE 7-5 OFFSITE SOIL ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location Field Sample ID Sample Date QA/QC Vadose Zone Sample* Depth (ft) SDG Lab Sample ID Table 3+ Lab SOP (ng/kg) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/kg) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Other Percent Moisture Percent Solids Notes: 1. Associated equipment blank and field blank results reported in Table 7-6. 2. * Select soil samples collected from saturated zone for soil physical parameters were also inadvertently analyzed for PFAS. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet ng/kg - nanograms per kilogram QA/QC - Quality assurance/ quality control R - Result rejected based on QA/QC criteria SDG - Sample Delivery Group SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- - No data reported CUMBERLAND-5S ROBESON-1S ROBESON-1S Cumberland-5S-3-4-20190911 Robeson-1S-soil-15-16-20190909 Robeson-1S-soil-5-6-20190909 9/11/2019 9/9/2019 9/9/2019 ------ N N N 3-4 15-16 5-6 200-50518-2 200-50460-2 200-50460-2 200-50518-4 200-50460-1 200-50460-2 <250 <250 <250 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 UJ <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 R <1,000 R <1,000 <1,000 R <1,000 R <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 UJ <1,000 R <1,000 R <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 UJ <1,000 <1,000 <1,000 UJ <200 <200 <200 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <210 <210 <210 <200 <200 <200 <200 <200 <200 <210 <210 <210 <2,000 <2,000 <2,000 <2,000 <2,000 <2,000 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <200 <500 <500 <500 <200 <1,000 <1,000 <200 <1,000 <1,000 <200 <1,000 <1,000 <200 <1,000 <1,000 18.2 18.4 J 12.3 81.8 --87.7 TR0795 Page 4 of 4 October 2019 TABLE 7-6 OFFSITE SOIL ANALYTICAL RESULTS - QUALITY CONTROL SAMPLES Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location EB EQBLK FBLK FBLK Field Sample ID BLADEN-2S-SOIL- EQBLK-RINSATE BLADEN-SOIL- EQBLK-1-RINSATE BLADEN-SOIL- EQBLK-1-FIELD BLADEN-2S-SOIL- EQBLK-FIELD BLA Sample Date 8/16/2019 8/14/2019 8/14/2019 8/16/2019 QA/QC Equipment Blank Equipment Blank Field Blank Field Blank Depth (ft)-------- SDG 200-50148-2 200-50099-2 200-50099-2 200-50148-2 Lab Sample ID 200-50148-4 200-50099-3 200-50099-4 200-50148-3 Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod)<4 <4 <4 <4 PFMOAA <5 <5 <5 <5 PFO2HxA <2 <2 <2 <2 PFO3OA <2 <2 <2 <2 PFO4DA <2 <2 <2 <2 PFO5DA <2 <2 <2 <2 PMPA <10 <10 <10 <10 PEPA <20 <20 <20 <20 PFESA-BP1 <2 <2 <2 <2 PFESA-BP2 <2 <2 <2 <2 Byproduct 4 <2 <2 <2 <2 Byproduct 5 <2 <2 <2 <2 Byproduct 6 <2 <2 <2 <2 NVHOS <2 <2 <2 <2 EVE Acid <2 <2 <2 <2 Hydro-EVE Acid <2 <2 <2 <2 R-EVE <2 <2 <2 <2 PES <2 <2 <2 <2 PFECA B <2 <2 <2 <2 PFECA-G <2 <2 <2 <2 Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate <2 <2 <2 <2 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)<20 <20 <20 <20 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)<20 <20 <20 <20 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <2 <2 <2 <2 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <4 <4 <4 <4 6:2 Fluorotelomer sulfonate <20 <20 <20 <20 ADONA <2.1 <2.1 <2.1 <2.1 F-53B Major <2 <2 <2 <2 F-53B Minor <2 <2 <2 <2 NaDONA <2.1 <2.1 <2.1 <2.1 N-ethyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20 N-ethylperfluoro-1-octanesulfonamide <2 <2 <2 <2 N-methyl perfluoro-1-octanesulfonamide <2 <2 <2 <2 N-methyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20 Perfluorobutane Sulfonic Acid <2 <2 <2 <2 Perfluorobutanoic Acid <2 <2 <2 <2 Perfluorodecane Sulfonic Acid <2 <2 <2 <2 Perfluorodecanoic Acid <2 <2 <2 <2 Perfluorododecane sulfonic acid (PFDoS)<2 <2 <2 <2 Perfluorododecanoic Acid <2 <2 <2 2.5 Perfluoroheptane sulfonic acid (PFHpS)<2 <2 <2 <2 Perfluoroheptanoic Acid <2 <2 <2 <2 Perfluorohexadecanoic acid (PFHxDA)<2 <2 <2 <2 Perfluorohexane Sulfonic Acid <2 <2 <2 <2 Perfluorohexanoic Acid <2 <2 <2 <2 Perfluorononanesulfonic acid <2 <2 <2 <2 Perfluorononanoic Acid <2 <2 <2 <2 Perfluorooctadecanoic acid <2 <2 <2 <2 Perfluorooctane Sulfonamide <2 <2 <2 <2 Perfluoropentane sulfonic acid (PFPeS)<2 <2 <2 <2 Perfluoropentanoic Acid <2 <2 <2 <2 Perfluorotetradecanoic Acid <2 <2 <2 <2 Perfluorotridecanoic Acid <2 <2 <2 <2 Perfluoroundecanoic Acid <2 <2 <2 <2 PFOA <2 <2 <2 <2 PFOS <2 <2 <2 <2 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol -------- 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol -------- N-ethylperfluoro-1-octanesulfonamide -------- N-methyl perfluoro-1-octanesulfonamide -------- Notes: 1. Associated soil analytical results reported in Table 7-5. Bold - Analyte detected above associated reporting limit EPA - Environmental Protection Agency ft - feet ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery Group SOP - standard operating procedure < - Analyte not detected above associated reporting limit. -- - No data reported TR0795 Page 1 of 1 October 2019 TABLE 9-1 GROUNDWATER ELEVATIONS Chemours Fayetteville Works, North Carolina Geosyntec Consultants NC P.C Area Aquifer Well ID Gauging Date Northing (ft, SPCS NAD83) Easting (ft, SPCS NAD83) Screened Interval (ft bgs) TOC Elevation (ft NAVD 88) Depth to Water (ft, from TOC) Groundwater Elevation (ft NAVD88) Onsite Black Creek Aquifer BCA-01 15-Oct-19 399,780.06 2,050,662.22 91 - 101 146.30 58.92 87.38 Onsite Black Creek Aquifer BCA-02 15-Oct-19 396,242.32 2,051,062.21 92 - 102 148.42 73.87 74.55 Onsite Black Creek Aquifer BCA-03R 15-Oct-19 398,582.23 2,049,522.22 88 - 98 150.82 49.55 101.27 Onsite Black Creek Aquifer BCA-04 15-Oct-19 395,877.67 2,047,823.11 94 - 104 150.24 28.69 121.55 Onsite Perched Zone FTA-01 15-Oct-19 397,907.50 2,049,373.61 12.0 - 22.0 150.63 17.02 133.61 Onsite Perched Zone FTA-02 15-Oct-19 397,786.43 2,049,206.27 11.5 - 21.5 150.28 18.00 132.28 Onsite Perched Zone FTA-03 15-Oct-19 397,767.09 2,049,313.86 12.0 - 22.0 151.08 18.18 132.90 Onsite Surficial Aquifer INSITU-01 15-Oct-19 401,658.20 2,046,077.31 7.0 - 17.0 118.20 6.46 111.74 Onsite Surficial Aquifer INSITU-02 15-Oct-19 401,863.46 2,049,136.62 7.0 - 17.0 113.12 DRY -- Onsite Floodplain Deposits LTW-01 15-Oct-19 399,566.17 2,052,149.95 11.0 - 26.0 53.83 16.53 37.30 Onsite Black Creek Aquifer LTW-02 15-Oct-19 398,848.36 2,052,354.37 28.0 - 38.0 52.48 10.29 42.19 Onsite Floodplain Deposits LTW-03 15-Oct-19 398,115.15 2,052,557.52 15.0 - 30.0 52.91 13.20 39.71 Onsite Floodplain Deposits LTW-04 15-Oct-19 397,280.24 2,052,583.60 12.0 - 27.0 51.86 9.31 42.55 Onsite Black Creek Aquifer LTW-05 15-Oct-19 396,430.68 2,052,738.06 29.0 - 44.0 52.01 9.66 42.35 Onsite Perched Zone MW-11 15-Oct-19 396,544.40 2,049,051.06 11.5 - 21.5 148.53 23.40 125.13 Onsite Perched Zone MW-12S 15-Oct-19 397,253.60 2,049,273.89 17.5 - 22.5 152.06 20.45 131.61 Onsite Surficial Aquifer MW-13D 15-Oct-19 397,119.02 2,049,821.12 57 - 67 148.65 44.32 104.33 Onsite Surficial Aquifer MW-14D 15-Oct-19 396,974.49 2,049,074.56 62 - 72 149.73 40.06 109.67 Onsite Surficial Aquifer MW-15DRR 15-Oct-19 398,580.71 2,049,511.75 52.5 - 62.5 150.92 47.55 103.37 Onsite Surficial Aquifer MW-16D 15-Oct-19 398,493.70 2,048,402.84 72 - 82 148.41 35.39 113.02 Onsite Surficial Aquifer MW-17D 15-Oct-19 398,401.74 2,047,366.50 57 - 67 146.12 29.03 117.09 Onsite Surficial Aquifer MW-18D 15-Oct-19 400,947.38 2,046,574.72 50 - 60 107.57 20.29 87.28 Onsite Surficial Aquifer MW-19D 15-Oct-19 401,151.33 2,048,272.99 46 - 56 139.55 51.31 88.24 Onsite Perched Zone MW-1S 15-Oct-19 397,080.31 2,049,120.73 21.0-24.0 149.93 19.24 130.69 Onsite Surficial Aquifer MW-20D 15-Oct-19 400,791.28 2,048,733.91 65 - 75 137.18 47.67 89.51 Onsite Surficial Aquifer MW-21D 15-Oct-19 399,501.70 2,047,074.96 72 - 82 151.38 45.67 105.71 Onsite Surficial Aquifer MW-22D 15-Oct-19 398,518.18 2,048,362.68 52 - 72 149.06 35.24 113.82 Onsite Perched Zone MW-23 15-Oct-19 396,237.61 2,051,063.25 9.5 - 14.5 148.34 14.41 133.93 Onsite Perched Zone MW-24 15-Oct-19 397,303.94 2,048,767.69 18.8 - 23.8 150.31 NM -- Onsite Perched Zone MW-25 15-Oct-19 396,753.37 2,050,989.82 12 - 17 147.59 14.30 133.29 Onsite Perched Zone MW-26 15-Oct-19 396,265.18 2,051,484.67 5 - 10 147.70 11.71 135.99 Onsite Perched Zone MW-27 15-Oct-19 396,010.33 2,051,472.00 10 - 15 146.83 14.84 131.99 Onsite Perched Zone MW-28 15-Oct-19 395,719.79 2,051,165.93 9 - 14 144.70 14.50 130.20 Onsite Perched Zone MW-2S 15-Oct-19 396,934.75 2,049,321.85 19.0 - 23.0 149.91 19.55 130.36 Onsite Perched Zone MW-30 15-Oct-19 397,340.79 2,050,776.09 10 - 15 147.67 14.66 133.01 Onsite Perched Zone MW-31 15-Oct-19 396,390.50 2,049,622.88 17-22 147.70 15.72 131.98 Onsite Perched Zone MW-32 15-Oct-19 396,359.58 2,049,651.79 13-18.5 147.11 14.75 132.36 Onsite Perched Zone MW-33 15-Oct-19 396,337.51 2,049,678.56 12-17 146.82 14.26 132.56 Onsite Perched Zone MW-34 15-Oct-19 396,352.90 2,049,619.09 17-22 147.97 15.78 132.19 Onsite Perched Zone MW-35 15-Oct-19 396,332.94 2,049,631.16 14-19 147.54 15.25 132.29 Onsite Perched Zone MW-36 15-Oct-19 396,320.09 2,049,651.17 12-17 147.89 15.81 132.08 Onsite Perched Zone MW-7S 15-Oct-19 397,444.52 2,049,809.73 NA 147.47 11.36 136.11 Onsite Perched Zone MW-8S 15-Oct-19 397,096.48 2,049,867.77 NA 146.48 DRY -- Onsite Perched Zone MW-9S 15-Oct-19 396,760.16 2,049,734.30 17.5-22.5 154.39 21.58 132.81 Onsite Perched Zone NAF-01 15-Oct-19 398,349.77 2,050,338.81 5.0-15.0 149.66 10.25 139.41 Onsite Perched Zone NAF-02 15-Oct-19 398,662.80 2,050,640.86 5.0-15.0 150.31 10.88 139.43 Onsite Perched Zone NAF-03 15-Oct-19 398,580.65 2,050,755.43 5.0-15.0 150.44 NM -- Onsite Perched Zone NAF-04 15-Oct-19 398,447.00 2,050,718.95 5.0-15.0 148.10 8.11 139.99 Onsite Perched Zone NAF-05A 15-Oct-19 398,641.22 2,051,024.85 NA NA exclusion zone -- Onsite Surficial Aquifer NAF-05B 15-Oct-19 398,660.23 2,051,021.81 NA NA exclusion zone -- Onsite Perched Zone NAF-06 15-Oct-19 398,809.66 2,050,911.91 2.75 - 12.75 146.43 11.95 134.48 Onsite Perched Zone NAF-07 15-Oct-19 398,899.33 2,050,616.50 5.5 - 15.5 149.69 10.77 138.92 Onsite Perched Zone NAF-08A 15-Oct-19 398,097.99 2,050,886.62 5.0 - 15.0 148.82 10.28 138.54 Onsite Surficial Aquifer NAF-08B 15-Oct-19 398,095.64 2,050,879.94 43.5 - 53.5 148.86 52.87 95.99 Onsite Perched Zone NAF-09 15-Oct-19 397,711.09 2,050,806.52 7.0 - 17.0 149.29 12.91 136.38 Onsite Perched Zone NAF-10 15-Oct-19 397,612.57 2,050,423.15 8.25 - 18.25 150.00 14.24 135.76 Onsite Perched Zone NAF-11A 15-Oct-19 398,909.29 2,050,999.92 2.5 - 7.5 140.59 10.01 130.58 Onsite Surficial Aquifer NAF-11B 15-Oct-19 398,911.13 2,050,995.88 33.5 - 43.5 140.74 46.50 94.24 Onsite Perched Zone NAF-12 15-Oct-19 398,270.56 2,050,777.49 18 - 23 145.93 NM -- Onsite Perched Zone NAF-13 15-Oct-19 398,370.49 2,051,260.72 11 - 16 152.29 17.35 134.94 Onsite Black Creek Aquifer PIW-10DR 15-Oct-19 395,093.99 2,052,297.30 53 - 58 75.91 14.63 61.28 Onsite Surficial Aquifer PIW-10S 15-Oct-19 395,104.67 2,052,297.04 7 - 17 76.45 18.79 57.66 Onsite Surficial Aquifer PIW-1D 15-Oct-19 400,547.77 2,051,801.42 24.5 - 29.5 52.33 19.52 32.81 Onsite Floodplain Deposits PIW-1S 15-Oct-19 400,540.61 2,051,792.59 7.8 - 17.8 54.20 21.61 32.59 Onsite Black Creek Aquifer PIW-2D 15-Oct-19 399,922.75 2,051,317.64 40 - 50 100.85 36.30 64.55 Onsite Black Creek Aquifer PIW-3D 15-Oct-19 399,711.75 2,052,088.80 19 - 24 53.32 17.51 35.80 Onsite Black Creek Aquifer PIW-4D 15-Oct-19 398,817.36 2,052,102.82 32.3 - 37.3 53.04 11.36 41.68 Onsite Surficial Aquifer PIW-5S 15-Oct-19 398,520.38 2,051,951.26 9.8 - 19.8 75.19 14.73 60.46 Onsite Floodplain Deposits PIW-6S 15-Oct-19 398,118.14 2,052,540.57 18 - 28 53.36 14.76 38.60 Onsite Black Creek Aquifer PIW-7D 15-Oct-19 396,787.69 2,052,595.37 29 - 34 48.60 5.91 42.69 Onsite Floodplain Deposits PIW-7S 15-Oct-19 396,787.00 2,052,589.49 7 - 17 48.39 5.88 42.51 Onsite Black Creek Aquifer PIW-8D 15-Oct-19 396,403.38 2,052,682.02 35.5 - 45.5 48.52 7.41 41.11 Onsite Black Creek Aquifer PIW-9D 15-Oct-19 396,155.97 2,052,250.91 40 - 45 79.53 37.45 42.08 Onsite Surficial Aquifer PIW-9S 15-Oct-19 396,148.11 2,052,251.10 24.8 - 29.8 79.53 30.47 49.06 Onsite Perched Zone PW-01 15-Oct-19 399,064.80 2,049,654.30 11 - 21 149.55 16.00 133.55 Onsite Surficial Aquifer PW-02 15-Oct-19 399,779.06 2,050,649.47 50 - 60 146.43 56.38 90.05 Onsite Surficial Aquifer PW-03 15-Oct-19 397,339.81 2,050,765.32 35 - 45 147.97 42.40 105.57 Onsite Surficial Aquifer PW-04 15-Oct-19 394,659.55 2,050,940.66 17 - 27 97.75 27.85 69.90 Onsite Surficial Aquifer PW-05 15-Oct-19 395,873.10 2,047,812.93 65 - 75 150.34 29.09 121.25 Onsite Surficial Aquifer PW-06 15-Oct-19 392,868.00 2,045,288.77 19 - 29 147.69 19.50 128.19 Onsite Surficial Aquifer PW-07 15-Oct-19 390,847.71 2,049,258.26 28 - 38 148.16 39.49 108.67 Onsite Black Creek Aquifer PW-09 15-Oct-19 401,997.39 2,048,980.54 44 - 54 77.49 25.25 52.24 Onsite Black Creek Aquifer PW-10R 15-Oct-19 398,516.12 2,051,936.59 57 - 67 75.90 27.76 48.15 Onsite Black Creek Aquifer PW-11 15-Oct-19 394,354.36 2,052,226.72 53 - 63 73.26 33.66 39.60 Onsite Black Creek Aquifer PW-12 15-Oct-19 399,500.45 2,047,063.51 109 - 119 150.61 57.96 92.65 Onsite Black Creek Aquifer PW-13 15-Oct-19 397,584.26 2,048,029.18 120 - 130 149.36 29.57 119.79 Onsite Black Creek Aquifer PW-14 15-Oct-19 397,325.65 2,050,766.36 136 - 146 147.97 61.11 86.86 Onsite Black Creek Aquifer PW-15R 15-Oct-19 398,900.88 2,051,011.75 110 - 120 136.14 59.18 76.96 Onsite Perched Zone PZ-11 15-Oct-19 398,646.25 2,049,820.94 15 - 20 151.03 14.01 137.02 Onsite Perched Zone PZ-12 15-Oct-19 399,094.96 2,048,981.78 15.1 - 20.1 150.91 20.17 130.74 Onsite Perched Zone PZ-13 15-Oct-19 397,708.07 2,050,991.73 7.1 - 12.1 149.20 12.47 136.73 Onsite Perched Zone PZ-14 15-Oct-19 397,589.92 2,050,618.27 9.0 - 14.0 148.38 16.26 132.12 Onsite Perched Zone PZ-15 15-Oct-19 396,805.09 2,050,112.02 10.2 - 15.2 148.79 13.67 135.12 Onsite Perched Zone PZ-17 15-Oct-19 396,614.82 2,048,872.69 21.1 - 26.1 150.08 28.27 121.81 Onsite Perched Zone PZ-19R 15-Oct-19 397,998.66 2,049,919.52 16 - 21 150.05 14.51 135.54 Onsite Perched Zone PZ-20R 15-Oct-19 398,185.81 2,049,784.60 15 - 20 151.29 15.82 135.47 Onsite Perched Zone PZ-21R 15-Oct-19 398,445.16 2,049,883.13 17 - 22 150.67 14.45 136.22 Onsite Black Creek Aquifer PZ-22 15-Oct-19 397,272.80 2,052,584.04 36.0 - 46.0 51.81 7.75 44.06 TR0795 Page 1 of 2 October 2019 TABLE 9-1 GROUNDWATER ELEVATIONS Chemours Fayetteville Works, North Carolina Geosyntec Consultants NC P.C Area Aquifer Well ID Gauging Date Northing (ft, SPCS NAD83) Easting (ft, SPCS NAD83) Screened Interval (ft bgs) TOC Elevation (ft NAVD 88) Depth to Water (ft, from TOC) Groundwater Elevation (ft NAVD88) Onsite Perched Zone PZ-24 15-Oct-19 396,117.94 2,050,744.07 11 - 16 147.53 14.17 133.36 Onsite Perched Zone PZ-25 15-Oct-19 396,753.94 2,050,991.05 14 - 19 147.59 21.35 126.24 Onsite Perched Zone PZ-26 15-Oct-19 396,059.78 2,050,382.35 11 - 16 147.70 12.90 134.80 Onsite Perched Zone PZ-27 15-Oct-19 395,922.11 2,050,376.76 12 - 17 147.17 13.20 133.97 Onsite Perched Zone PZ-28 15-Oct-19 396,304.55 2,049,933.79 13 - 18 148.64 13.50 135.14 Onsite Perched Zone PZ-29 15-Oct-19 396,371.49 2,049,768.94 13 - 18 147.74 14.45 133.29 Onsite Perched Zone PZ-31 15-Oct-19 396,428.73 2,049,594.36 14 - 19 148.00 17.30 130.70 Onsite Perched Zone PZ-32 15-Oct-19 396,418.47 2,049,713.79 13 - 18 148.47 15.31 133.16 Onsite Perched Zone PZ-33 15-Oct-19 396,308.92 2,049,707.66 12.5 - 17.5 146.72 14.00 132.72 Onsite Perched Zone PZ-34 15-Oct-19 396,292.05 2,049,595.04 13.5 - 18.5 147.70 15.81 131.88 Onsite Perched Zone PZ-35 15-Oct-19 398,232.64 2,050,020.49 13 - 18 150.43 14.11 136.32 Onsite Surficial Aquifer SMW-01 15-Oct-19 395,295.75 2,043,679.19 5.0 - 15.0 136.81 13.30 123.51 Onsite Perched Zone SMW-02 15-Oct-19 399,983.75 2,050,654.77 5.0 - 20.0 147.93 15.98 131.95 Onsite Surficial Aquifer SMW-02B 15-Oct-19 399,983.48 2,050,660.48 43.0 - 53.0 145.21 DRY -- Onsite Perched Zone SMW-03 15-Oct-19 399,778.25 2,049,445.96 10.0 - 20.0 151.09 DRY -- Onsite Black Creek Aquifer SMW-03B 15-Oct-19 399,785.75 2,049,421.54 72 - 82 150.43 57.03 93.40 Onsite Perched Zone SMW-04A 15-Oct-19 399,668.71 2,048,387.57 19.5 - 34.5 148.09 37.11 110.98 Onsite Surficial Aquifer SMW-04B 15-Oct-19 399,667.12 2,048,390.30 43.0 - 53.0 148.37 45.43 102.94 Onsite Perched Zone SMW-05 15-Oct-19 399,334.07 2,048,557.33 10.0 - 20.0 148.10 23.05 125.05 Onsite Surficial Aquifer SMW-05P 15-Oct-19 399,338.61 2,048,559.26 45.0 - 60.0 149.32 44.01 105.31 Onsite Perched Zone SMW-06 15-Oct-19 399,172.35 2,048,759.48 12.0 - 22.0 150.97 24.93 126.04 Onsite Surficial Aquifer SMW-06B 15-Oct-19 399,144.74 2,048,764.94 58 - 68 150.32 47.17 103.15 Onsite Perched Zone SMW-07 15-Oct-19 398,932.91 2,048,611.16 13.0 - 23.0 147.64 19.66 127.98 Onsite Perched Zone SMW-08 15-Oct-19 399,064.97 2,048,468.78 21.0 - 31.0 151.02 DRY -- Onsite Surficial Aquifer SMW-08B 15-Oct-19 399,058.33 2,048,478.84 58 - 68 148.81 40.52 108.29 Onsite Surficial Aquifer SMW-09 15-Oct-19 401,076.89 2,050,017.41 52 - 62 141.43 56.23 85.20 Onsite Black Creek Aquifer SMW-10 15-Oct-19 402,307.31 2,047,923.84 39 - 49 76.26 29.57 46.69 Onsite Surficial Aquifer SMW-11 15-Oct-19 401,996.15 2,048,975.38 13 - 23 71.95 14.08 57.87 Onsite Black Creek Aquifer SMW-12 15-Oct-19 401,314.20 2,051,007.22 88 - 98 118.22 84.78 33.44 Offsite Black Creek Aquifer Bladen-1D 15-Oct-19 387,519.56 2,050,248.83 37 - 47 81.52 19.72 61.80 Offsite Surficial Aquifer Bladen-1S 15-Oct-19 387,516.28 2,050,234.78 5 - 10 81.31 10.14 71.17 Offsite Black Creek Aquifer Bladen-2D 15-Oct-19 368,824.41 2,042,879.78 70 - 75 142.85 20.50 122.35 Offsite Surficial Aquifer Bladen-2S 15-Oct-19 368,818.78 2,042,884.35 10 - 20 142.62 6.99 135.63 Offsite Black Creek Aquifer Bladen-3D 15-Oct-19 396,854.29 2,059,007.99 33.75 - 43.75 79.09 10.32 68.77 Offsite Surficial Aquifer Bladen-3S 15-Oct-19 396,859.62 2,059,014.36 5 - 15 78.84 9.51 69.33 Offsite Black Creek Aquifer Bladen-4D 15-Oct-19 363,252.43 2,087,638.29 46.75 - 51.75 64.23 1.43 62.80 Offsite Surficial Aquifer Bladen-4S 15-Oct-19 363,260.51 2,087,638.88 4.75 - 14.75 64.26 5.84 58.42 Offsite Black Creek Aquifer Cumberland-1D 15-Oct-19 431,477.66 2,011,002.07 40 - 50 179.18 7.27 171.91 Offsite Surficial Aquifer Cumberland-1S 15-Oct-19 431,477.66 2,011,002.07 15 - 25 179.41 7.16 172.25 Offsite Black Creek Aquifer Cumberland-2D 15-Oct-19 450,054.48 2,074,001.35 47 - 57 133.79 5.68 128.11 Offsite Surficial Aquifer Cumberland-2S 15-Oct-19 450,054.48 2,074,001.35 7 - 17 133.61 5.91 127.70 Offsite Black Creek Aquifer Cumberland-3D 15-Oct-19 423,131.53 2,060,380.35 22 - 27 83.34 8.17 75.17 Offsite Surficial Aquifer Cumberland-3S 15-Oct-19 423,131.53 2,060,380.35 9 - 14 83.62 8.73 74.89 Offsite Black Creek Aquifer Cumberland-4D 15-Oct-19 413,160.26 2,078,233.75 57 - 67 123.79 13.82 109.97 Offsite Surficial Aquifer Cumberland-4S 15-Oct-19 413,160.26 2,078,233.75 10 - 20 123.93 7.51 116.42 Offsite Black Creek Aquifer Cumberland-5D 15-Oct-19 405,673.82 2,138,069.54 52 - 57 106.67 8.38 98.29 Offsite Surficial Aquifer Cumberland-5S 15-Oct-19 405,673.82 2,138,069.54 14 - 24 106.65 4.77 101.88 Offsite Black Creek Aquifer Robeson-1D 15-Oct-19 381,338.72 2,020,239.81 42.75 - 52.75 160.93 13.74 147.19 Offsite Surficial Aquifer Robeson-1S 15-Oct-19 381,338.72 2,020,239.81 17 - 27 161.22 18.15 143.07 Notes: 1. Area - refers to location of well within site property boundary (“Onsite”) and outside property boundary (“Offsite”) 2. Aquifer - refers to primary aquifer unit well screen is estimated to be screened within 3. DRY - Water levels could not be calculated because well was dry. 4. NM - Not Measured. Water levels were not measured because well location was not accessible at the time of measurement due to well located within the "blast zone" or well was pumping (NAF-03, NAF-12 and MW-24) 5. -- - Groundwater elevation data not available because well was either dry, not accessible or was pumping at the time of measurement 6. NAF-05A and NAF-05B located in exclusion zone - Well location not safely accessible at the time of measurement. 7. Water levels were measured during a single synoptic event over a continuous 24-hour period. 8. Survey completed by Freeland-Clinkscales & Associates of NC. 9. Northing and Easting provided in North Carolina State Plane System (zone 3200), North American Datum 1983. 10. Vertical datum is North American Vertical Datum of 1988. ft bgs - feet below ground surface NAVD88 - North American Vertical Datum of 1988 TOC - Top of Casing ft SPCS NAD83 - feet State Plane Coordinate System, North American Datum of 1983 TR0795 Page 2 of 2 October 2019 TABLE 9-2 VERTICAL GRADIENTSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.AquiferWell Pair IDWell ID Gauging DateNorthing (NAD 83)Easting(NAD 83)Screened Interval (ft bgs)Ground Elevation (ft NAVD88)TOC Elevation (ft NAVD88)Shallow/DeepGroundwater Elevation(ft-NAVD88)Vertical Gradient(feet/feet)DirectionPerched Zone NAF-11A 10/15/2019 398,909.29 2,050,999.922.5 - 7.5 137.55 140.59 s 130.58Surficial Aquifer NAF-11B 10/15/2019 398,911.13 2,050,995.88 33.5 - 43.5 137.55 140.74 d 94.24Perched Zone SMW-06 10/15/2019 399,172.35 2,048,759.48 12.0 - 22.0 147.92 150.97 s 126.04Surficial Aquifer SMW-06B 10/15/2019 399,144.74 2,048,764.94 58.0 - 68.0 NA 150.32 d 103.15Perched Zone SMW-04A 10/15/2019 399,668.71 2,048,387.5719.5 - 34.5 145.46 148.09 s 110.98Surficial Aquifer SMW-04B 10/15/2019 399,667.12 2,048,390.30 43.0 - 53.0 145.18 148.37 d 102.94Perched Zone SMW-05 10/15/2019 399,334.07 2,048,557.33 10.0 - 20.0 144.17 148.10 s 125.05Surficial Aquifer SMW-05P 10/15/2019 399,338.61 2,048,559.26 45.0 - 60.0 146.06 149.32 d 105.31Perched Zone MW-30 10/15/2019 397,340.79 2,050,776.09 10 - 15 144.95 147.67 s 133.01Surficial Aquifer PW-03 10/15/2019 397,339.81 2,050,765.32 35 - 45 144.97 147.97 d 105.57Perched Zone NAF-08A 10/15/2019 398,097.99 2,050,886.625.0 - 15.0 145.54 148.82 s 138.54Surficial Aquifer NAF-08B 10/15/2019 398,095.64 2,050,879.94 43.5 - 53.5 145.62 148.86 d 95.99Perched Zone MW-23 10/15/2019 396,233.43 2,051,061.52 9.5 - 14.5 145.17 148.34 s 133.93Black Creek Aquifer BCA-02 10/15/2019 396,242.32 2,051,062.21 92.0 - 102.0 145.20 148.42 d 74.55Surficial Aquifer PIW-9S 10/15/2019 396,148.11 2,052,251.10 24.75 - 29.75 76.80 79.53 s 49.06Black Creek Aquifer PIW-9D 10/15/2019 396,155.97 2,052,250.91 40.0 - 45.0 76.75 79.53 d 42.08Surficial Aquifer PIW-10S 10/15/2019 395,104.67 2,052,297.04 7.0 - 17.0 73.30 76.45 s 57.66Black Creek Aquifer PIW-10DR 10/15/2019 395,098.79 2,052,293.84 53.0 - 58.0 73.34 75.91 d 61.28Surficial Aquifer PIW-5S 10/15/2019 398,520.38 2,051,951.26 9.8 - 19.8 72.68 75.19 s 60.46Black Creek Aquifer PW-10R 10/15/2019 398,516.12 2,051,936.59 57 - 67 73.28 75.90 d 48.15Surficial Aquifer PW-02 10/15/2019 399,779.06 2,050,649.47 50 - 60 143.76 146.43 s 90.05Black Creek Aquifer BCA-01 10/15/2019 399,780.06 2,050,662.22 91 - 101 143.26 146.30 d 87.38Surficial Aquifer SMW-11 10/15/2019 401,996.15 2,048,975.38 13 - 23 69.04 71.95 s 57.87Black Creek Aquifer PW-09 10/15/2019 401,997.39 2,048,980.54 44 - 54 74.76 77.49 d 52.24Surficial Aquifer MW-21D 10/15/2019 399,501.70 2,047,074.96 72 - 82 148.05 151.38 s 105.71Black Creek Aquifer PW-12 10/15/2019 399,500.45 2,047,063.51 109 - 119 148.31 150.61 d 92.65Surficial Aquifer PW-05 10/15/2019 395,873.10 2,047,812.93 65 - 75 147.16 150.34 s 121.25Black Creek Aquifer BCA-04 10/15/2019 395,877.67 2,047,823.11 94 - 104 147.07 150.24 d 121.55Surficial Aquifer PW-03 10/15/2019 397,339.81 2,050,765.32 35 - 45 144.97 147.97 s 105.57Black Creek Aquifer PW-14 10/15/2019 397,325.65 2,050,766.36 136 - 146 145.13 147.97 d 86.86Floodplain PIW-1S 10/15/2019 400,540.61 2,051,792.59 7.8 - 17.8 50.78 54.20 s 32.59Surficial Aquifer PIW-1D 10/15/2019 400,547.77 2,051,801.42 24.5 - 29.5 49.53 52.33 d 32.81Floodplain PIW-7S 10/15/2019 396,787.00 2,052,589.49 7.0 - 17.0 45.81 48.39 s 42.51Black Creek Aquifer PIW-7D 10/15/2019 396,787.69 2,052,595.37 29.0 - 34.0 45.78 48.60 d 42.69Floodplain LTW-04 10/15/2019 397,280.24 2,052,583.60 12.0 - 27.0 49.34 51.86 s 42.55Black Creek Aquifer PZ-22 10/15/2019 397,272.80 2,052,584.04 36.0 - 46.0 49.03 51.81 d 44.06Perched Zone MW-25 10/15/2019 396,753.37 2,050,989.82 12.0 - 17.0 145.00 147.59 s 133.29Perched Zone PZ-25 10/15/2019 396,753.94 2,050,991.05 14.0 - 19.0 145.00 147.59 s 126.24Old Outfall 002 Old Outfall 002 6/7/2019 -- -- -- 40.25 --s 40.63Black Creek Aquifer PW-11 10/15/2019 394,354.00 2,052,227.00 53.0 - 63.0 70.19 73.26 d 39.60Downward(SMW-05 to SMW-05P)Downward(SMW-04A to SMW-04B)Downward(SMW-06 to SMW-06B)Downward(NAF-11A to NAF-11B)Downward(PIW-5S to PW-10R)Upward(PIW-10S to PIW-10DR)Downward(PIW-9S to PIW-9D)Downward(MW-23 to BCA-02)Downward(NAF-08A to NAF-08B)Downward(MW-30 to PW-03)1.03Downward(Old Outfall 002 to PW-11)Downward(MW-25 to PZ-25)Upward(LTW-04 to PZ-22)-0.22Upward(PIW-1S to PIW-1D)-0.18-1.517.05Upward(PIW-7S to PIW-7D)Perched / SurficialPerched / Black CreekSurficial / Black CreekFloodplain / SurficialFloodplain/ Black CreekOtherWP19WP20WP17WP18WP15WP16Downward(PW-03 to PW-14)WP13WP14Upward(BCA-04 to PW-05)Downward(MW-21D to PW-12)13.06-0.3018.71WP12Downward(SMW-11 to PW-09)Downward(PW-02 to BCA-01)WP10WP1112.312.675.63WP9-3.62WP86.98WP6WP742.5559.38WP527.44WP48.0419.74WP236.3422.89WP1WP3TR0795Page 1 of 2October 2019 TABLE 9-2 VERTICAL GRADIENTSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.AquiferWell Pair IDWell ID Gauging DateNorthing (NAD 83)Easting(NAD 83)Screened Interval (ft bgs)Ground Elevation (ft NAVD88)TOC Elevation (ft NAVD88)Shallow/DeepGroundwater Elevation(ft-NAVD88)Vertical Gradient(feet/feet)DirectionSurficial Aquifer Bladen-1S 10/15/2019 387,516.28 2,050,234.78 5 - 10 81.57 81.31 s 71.17Black Creek Aquifer Bladen-1D 10/15/2019 387,519.56 2,050,248.83 37 - 47 81.72 81.52 d 61.80Surficial Aquifer Bladen-2S 10/15/2019 368,818.78 2,042,884.35 10 - 20 143.01 142.62 s 135.63Black Creek Aquifer Bladen-2D 10/15/2019 368,824.41 2,042,879.78 70 - 75 143.11 142.85 d 122.35Surficial Aquifer Bladen-3S 10/15/2019 396,859.62 2,059,014.36 5 - 15 79.40 78.84 s 69.33Black Creek Aquifer Bladen-3D 10/15/2019 396,854.29 2,059,007.99 33.75 - 43.75 79.59 79.09 d 68.77Surficial Aquifer Bladen-4S 10/15/2019 363,260.51 2,087,638.88 4.75 - 14.75 64.65 64.26 s 58.42Black Creek Aquifer Bladen-4D 10/15/2019 363,252.43 2,087,638.29 46.75 - 51.75 64.67 64.23 d 62.80Surficial Aquifer Cumberland-1S 10/15/2019 431,477.66 2,011,002.07 15 - 25 179.70 179.41 s 172.25Black Creek Aquifer Cumberland-1D 10/15/2019 431,477.66 2,011,002.07 40 - 50 179.58 179.18 d 171.91Surficial Aquifer Cumberland-2S 10/15/2019 450,054.48 2,074,001.35 7 - 17 133.87 133.61 s 127.70Black Creek Aquifer Cumberland-2D 10/15/2019 450,054.48 2,074,001.35 47 - 57 134.06 133.79 d 128.11Surficial Aquifer Cumberland-3S 10/15/2019 423,131.53 2,060,380.35 9 - 14 83.87 83.62 s 74.89Black Creek Aquifer Cumberland-3D 10/15/2019 423,131.53 2,060,380.35 22 - 27 83.59 83.34 d 75.17Surficial Aquifer Cumberland-4S 10/15/2019 413,160.26 2,078,233.75 10 - 20 124.15 123.93 s 116.42Black Creek Aquifer Cumberland-4D 10/15/2019 413,160.26 2,078,233.75 57 - 67 124.09 123.79 d 109.97Surficial Aquifer Cumberland-5S 10/15/2019 405,673.82 2,138,069.54 14 - 24 107.00 106.65 s 101.88Black Creek Aquifer Cumberland-5D 10/15/2019 405,673.82 2,138,069.54 52 - 57 107.02 106.67 d 98.29Surficial Aquifer Robeson-1S 10/15/2019 381,338.72 2,020,239.81 17 - 27 161.51 161.22 s 143.07Black Creek Aquifer Robeson-1D 10/15/2019 381,338.72 2,020,239.81 42.75 - 52.75 161.23 160.93 d 147.19Notes:1. Well pairs only include locations where depth to water level in both wells were synoptically measured in October 2019.2. Calculated negative vertical gradient values represent potential for upward flow and positive vertical gradient values represent potential for downward flows.3. "s" and "d" represent shallower and deeper well screens between the wells in each pair.4. Direction indicates potential for upward or downward groundwater flow in each well pair.5. Water column depth from Old Outfall 002 channel bottom presented. Measurements collected during volumetric flow measurements presented in the Seeps and Creeks Investigation Report (Geosyntec, 2019).NAD83 - North American Datum of 1983; horizontal control datumNAVD88 - North American Vertical Datum of 1988; vertical control datum established in 1991ft bgs - feet below ground surfaceTOC - top of casing-- data not availableDownward(Bladen-1S to Bladen-1D)WP30-4.12Upward(Robeson-1D to Robeson-1S)WP293.59Downward(Cumberland-5S to Cumberland-5D)WP286.45Downward(Cumberland-4S to Cumberland-4D)WP27-0.41-0.28WP25-4.380.34Downward(Bladen-2S to Bladen-2D)WP22OffsiteUpward(Cumberland-3D to Cumberland-3S)Upward(Cumberland-2D to Cumberland-2S)Upward(Bladen-4D to Bladen-4S)WP21Downward(Cumberland-1S to Cumberland-1D)WP24WP26WP230.56Downward(Bladen-3S to Bladen-3D)9.3713.28TR0795Page 2 of 2October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Location ID BCA-01 BCA-02 BCA-02 BCA-03RField Sample ID GW0619-BCA-01 GW0619-BCA-02-D GW0619-BCA-02 BCA-03R-091219 Sample Date 7/8/2019 7/9/2019 7/9/2019 9/12/2019 QA/QC --Field Duplicate ---- SDG 320-52171-1 320-52149-1 320-52149-1 320-54314-1Lab Sample ID 320-52171-4 320-52149-6 320-52149-5 320-54314-1Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod)9,700 12,000 J 18,000 J 12,000 PFMOAA 70,000 110,000 120,000 330,000 PFO2HxA 22,000 26,000 29,000 69,000PFO3OA3,000 8,600 8,600 15,000 PFO4DA 79 3,300 4,000 1,200 PFO5DA <34 610 590 <170 PMPA 5,900 6,700 7,300 29,000PEPA1,400 2,300 2,500 7,100 PFESA-BP1 <27 60 80 200 PFESA-BP2 <30 420 520 160 Byproduct 4 300 720 810 2,000Byproduct 5 1,100 2,000 2,100 19,000 Byproduct 6 <15 18 19 <77 NVHOS 570 1,000 1,100 2,400 EVE Acid <24 24 27 <120 Hydro-EVE Acid <28 1,400 1,600 200 R-EVE 230 500 560 730 PES <46 <46 <46 <230 PFECA B <60 <60 <60 <300 PFECA-G <41 <41 <41 <200Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate ------<2 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)<20 <20 <20 <20 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)<20 <20 <20 <20 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol ------<2 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol ------<4 6:2 Fluorotelomer sulfonate <20 <20 <20 <20 ADONA ------<2.1 F-53B Major ------<2 F-53B Minor ------<2 NaDONA ------<2.1 N-ethyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20 N-ethylperfluoro-1-octanesulfonamide ------<2 N-methyl perfluoro-1-octanesulfonamide ------<2 N-methyl perfluorooctane sulfonamidoacetic acid <20 <20 <20 <20 Perfluorobutane Sulfonic Acid <2 2.9 2.8 <2 Perfluorobutanoic Acid 70 120 120 160Perfluorodecane Sulfonic Acid <2 <2 <2 <2 Perfluorodecanoic Acid <2 <2 <2 <2 Perfluorododecane sulfonic acid (PFDoS)<2 <2 <2 <2 Perfluorododecanoic Acid <2 3.8 <2 <2Perfluoroheptane sulfonic acid (PFHpS)<2 <2 <2 <2 Perfluoroheptanoic Acid 8.7 46 46 72 Perfluorohexadecanoic acid (PFHxDA)------<2 Perfluorohexane Sulfonic Acid <2 5.2 5 <2 Perfluorohexanoic Acid 7.9 24 25 24 Perfluorononanesulfonic acid <2 <2 <2 <2 Perfluorononanoic Acid <2 11 10 <2 Perfluorooctadecanoic acid <2 <2 <2 UJ <2 Perfluorooctane Sulfonamide <2 <2 <2 <2 Perfluoropentane sulfonic acid (PFPeS)<2 <2 <2 <2 Perfluoropentanoic Acid 280 170 170 600 Perfluorotetradecanoic Acid <2 <2 <2 <2 Perfluorotridecanoic Acid <2 2 <2 <2 Perfluoroundecanoic Acid <2 <2 <2 <2 PFOA <2 32 30 5.8 PFOS <2 4.2 3.4 <2 Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported TR0795 Page 1 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer BCA-04 LTW-02 LTW-05 PIW-2DGW0619-BCA-04 GW0619-LTW-02 GW0619-LTW-05 PIW-2D-091219 7/9/2019 7/17/2019 7/16/2019 9/12/2019 -------- 320-52149-1 320-52454-1 320-52322-1 320-54314-1320-52149-4 320-52454-2 320-52322-4 320-54314-2 6.9 9,500 26,000 B 1,800 <5 38,000 240,000 14,000 <2 16,000 68,000 2,900<2 3,000 22,000 100 <2 250 2,900 <79 <2 <34 <340 <34 20 6,500 <5,700 1,300<20 2,100 <470 92 <2 <27 <270 <27 <2 30 310 <30 <2 490 J 1,600 <160<2 1,200 3,100 <58 <2 <15 <150 <15 <2 370 1,900 110 J <2 <24 <240 <24 <2 45 1,400 <28 <2 420 2,100 <70 <2 <46 <460 <46 <2 <60 <600 <60 <2 <41 <410 <41 ------<2 <20 <20 <20 <20 <20 <45 <20 <52 ------<8.5 ------<14 <20 <20 <20 <20 ------<2.1 ------<2.4 ------<3.2 ------<2.1 <20 <20 <20 <20 ------<8.7 ------<4.3 <20 <27 <20 <31 <2 <2 <2 <2 <2 71 330 18<2 <2.7 <2 <3.2 <2 <2.7 <2 <3.1 <2 <3.9 <2 <4.5 <2 <4.7 <2 <5.5<2 <2 <2 <2 <2 13 360 <2.5 ------<8.9 <2 <2 <2 3 <2 10 100 <5.8 <2 <2 <2 <2 <2 <2.3 <2 <2.7 <2 <3.9 <2 <4.6 <2 <3 <2 <3.5 <2 <2.6 <2 <3 <2 290 2,600 70 <2 <2.5 <2 <2.9 <2 <11 <2 <13 <2 <9.4 <2 <11 <2 <7.3 3.6 <8.5 <2 <4.6 <2 <5.4 TR0795 Page 2 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer PIW-2D PIW-3D PIW-4D PIW-04DPIW-2D-091219-Z GW0619-PIW-3D PIW-04D-091119 PIW-4D-091119-Z 9/12/2019 7/18/2019 9/11/2019 9/11/2019 -------- 320-54316-1 320-52464-1 320-54317-1 320-54319-1320-54316-1 320-52464-2 320-54317-2 320-54319-2 1,800 9,600 6.7 6.7 13,000 5,400 <210 <210 3,000 9,100 <81 <811001,700 <58 <58 <79 780 <79 <79 <34 95 <34 <34 1,200 12,000 <570 <570894,400 <47 <47 <27 <2.7 <27 <27 <30 150 <30 <30 <160 500 <160 <160<58 <5.8 <58 <58 <15 5.1 <15 <15 130 83 <54 <54 <24 <2.4 <24 <24 <28 52 <28 <28 <70 290 <70 <70 <46 <4.6 <46 <46 <60 <6 <60 <60 <41 <4.1 <41 <41 <2 --<2 <2 <20 <20 <20 <20 <52 <20 <20 <20 <8.5 --<2 <2 <14 --<4 <4 <20 <20 <20 <20 <2.1 --<2.1 <2.1 <2.4 --<2 <2 <3.2 --<2 <2 <2.1 --<2.1 <2.1 <20 <20 <20 <20 <8.7 --<2 <2 <4.3 --<2 <2 <31 <20 <20 <20 <2 2.2 <2 <2 19 84 <2 <2<3.2 <2 <2 <2 <3.1 <2 <2 <2 <4.5 <2 <2 <2 <5.5 <2 <2 <2<2 <2 <2 <2 <2.5 30 <2 <2 <8.9 --<2 <2 3.5 3.1 <2 <2 <5.8 21 <2 <2 <2 <2 <2 <2 <2.7 4.2 <2 <2 <4.6 <2 <2 <2 <3.5 <2 <2 <2 <3 <2 <2 <2 76 130 <2 <2 3.1 <2 <2 <2 <13 <2 <2 <2 <11 <2 <2 <2 <8.5 35 <2 <2 <5.4 9.5 <2 <2 TR0795 Page 3 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer PIW-7D PIW-8D PIW-9D PIW-10DRGW0619-PIW-7D GW0619-PIW-8D GW0619-PIW-9D PIW-10DR-091019 7/19/2019 7/19/2019 7/23/2019 9/10/2019 -------- 320-52624-1 320-52624-1 320-52722-1 320-54176-1320-52624-3 320-52624-2 320-52722-1 320-54176-1 11,000 54,000 J 33,000 19,000 150,000 400,000 150,000 45,000 27,000 140,000 41,000 19,0002,400 51,000 12,000 6,000 570 7,200 3,100 1,200 J <34 <340 84 <34 UJ 3,500 15,000 9,900 9,1005304,500 3,400 3,400 <27 <270 29 <27 53 770 370 160 J 280 4,400 1,900 J 1,50069010,000 2,700 6,400 J <15 <150 18 15 810 3,600 1,700 510 <24 <240 <24 <24 170 J 3,700 1,600 790 J350 J 4,500 1,700 1,200 <46 <460 <46 <46 <60 <600 <60 <60 <41 <410 <41 <41 ------<2 <20 <38 <20 <20 <44 <98 <20 <20 ------<2 ------<4 <20 <38 <20 34 ------<2.1 ------<2 ------<2 ------<2.1 <20 <36 <20 <20 ------<2 ------<2 <26 <58 <20 <20 <2 <3.8 <2 <2 100 930 240 240<2.7 <6 <2 <2 <2.6 <5.8 <2 <2 <3.8 <8.5 <2 <2 <4.6 <10 <2 <2<2 <3.6 <2 <2 41 920 100 120 ------<2 <2 <3.2 <2 <2142908156 <2 <3 <2 <2 <2.3 <5.1 <2 <2 <3.9 <8.7 <2 UJ <2 <2.9 <6.6 <2 <2 <2.5 <5.6 <2 <2 820 3,900 790 750 <2.4 <5.5 <2 <2 <11 <24 <2 <2 <9.2 <21 <2 <2 <7.1 <16 17 2.9 <4.5 <10 <2 <2 TR0795 Page 4 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer PW-09 PW-09 PW-10R PW-10RPW-09-091119 PW-09-091119-Z GW0619-PW-10R GW0619-PW-10R-Z 9/11/2019 9/11/2019 9/19/2019 9/19/2019 -------- 320-54274-1 320-54278-1 320-54522-1 320-54524-1320-54274-2 320-54278-2 320-54522-1 320-54524-1 <4 <4 9,900 8,400 <210 <210 130,000 120,000 170 J 160 23,000 22,000<58 <58 1,100 980 <79 <79 <79 <79 <34 <34 <34 <34 1,600 1,900 3,200 3,100220160440440 160 J 79 <27 <27 81 37 <30 <30 <160 <160 <160 <160 94 65 J 160 160 <15 <15 <15 <15 <54 <54 680 640 <24 <24 <24 <24 <28 <28 <28 <28 <70 <70 230 210 <46 <46 <46 <46 <60 <60 <60 <60 <41 <41 <41 <41 <2 <2 <22 <19 <20 <20 <230 <200 <20 <20 <600 <530 <2 <2 <97 <87 <4 <4 <160 <140 <20 <20 <230 <200 <2.1 <2.1 ---- <2 <2 ---- <2 <2 ---- <2.1 <2.1 ---- <20 <20 <220 <190 <2 <2 <100 <89 <2 <2 <49 <44 <20 <20 <350 <320 <2 <2 130 95 <2 <2 66 67<2 <2 <37 <33 <2 <2 <35 <32 <2 <2 <52 <46 <2 <2 <63 <56<2 <2 <22 <19 <2 <2 <29 <26 <2 <2 <100 <91 <2 <2 <19 <17<2 <2 <66 <59 <2 <2 <18 <16 <2 <2 <31 <28 <2 <2 <53 <47 <2 <2 <40 <36 <2 <2 <34 <31 <2 <2 530 560 <2 <2 <33 <30 <2 <2 <150 <130 <2 <2 <130 <110 <2 <2 <97 <87 <2 <2 <62 <55 TR0795 Page 5 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer PW-11 PW-11 PW-12 PW-12PW-11-091019 PW-11-091019-Z PW-12-091119 PW-12-091119-Z 9/10/2019 9/10/2019 9/11/2019 9/11/2019 -------- 320-54231-1 320-54229-1 320-54299-1 320-54299-1320-54231-2 320-54229-1 320-54299-4 320-54299-5 16,000 20,000 <4 <4 280,000 310,000 <5 <5 56,000 J 59,000 <2 <232,000 J 33,000 <2 <2 16,000 16,000 <2 <2 670 J 480 <2 <2 8,200 9,000 15 <103,100 3,200 <20 <20 410 320 <2 <2 910 720 <2 <2 1,400 1,700 <2 <23,200 3,300 <2 <29378<2 <2 3,000 3,100 <2 <2 <120 <120 <2 <2 940 820 <2 <2540640<2 <2 <230 <230 <2 <2 <300 <300 <2 <2 <200 <200 <2 <2 <2 <2 <2 <2 <20 <20 <20 <20 <500 <48 <20 <20 <82 <7.8 <2 <2 <13 <13 <4 <4 21 <20 <20 <20 <2.1 <2.1 <2.1 <2.1 <2.3 <2.2 <2 <2 <3.1 <2.9 <2 <2 <2.1 <2.1 <2.1 <2.1 <20 <20 <20 <20 <84 <7.9 <2 <2 <4.1 <3.9 <2 <2 <300 <28 <20 <20 <2 3.2 <2 <2 150 150 <2 <2<3.1 <2.9 <2 <2 <3 <2.8 <2 <2 <4.3 <4.1 <2 <2 <5.3 <5 <2 <2<2 <2 <2 <2 430 410 <2 <2 <8.6 <8.1 <2 UJ <2 UJ 3.5 5.1 <2 <2 39 35 <2 <2 <2 <2 <2 <2 4.2 3.1 <2 <2 <4.4 <4.2 <2 UJ <2 UJ <3.4 <3.2 <2 <2 <2.9 <2.7 <2 <2 1,300 1,400 <2 <2 <2.8 <2.6 <2 <2 <13 <12 <2 <2 <11 <10 <2 <2 25 23 <2 <2 <5.2 <4.9 <2 <2 TR0795 Page 6 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer PW-13 PW-13 PW-14 PW-15RPW-13-091019 PW-13-091019-Z PW-14-091119 GW0619-PW-15R-D 9/10/2019 9/10/2019 9/11/2019 9/19/2019 ------Field Duplicate 320-54231-1 320-54229-1 320-54274-1 320-54519-1320-54231-3 320-54229-2 320-54274-3 320-54519-2 <15 <15 22,000 11,000 J <210 <2,100 9,500,000 340,000 <81 <810 3,400,000 64,000<58 <580 1,100,000 14,000 <79 <790 610,000 2,200 <34 <340 390,000 <67 <570 <5,700 1,400,000 36,000<47 <470 390,000 9,300 <27 <270 6,000 4,100 <30 <300 250,000 670 <160 <1,600 150,000 1,800 J <58 <580 190,000 21,000 <15 <150 5,000 34 <54 <540 96,000 3,500 <24 <240 <2,400 190 <28 <280 210,000 510 <70 <700 130,000 560 <46 <460 <4,600 <92 <60 <600 <6,000 <120 <41 <410 <4,100 <82 <2 <2 <2 <18 <20 <20 <20 <180 <52 <52 <20 <480 <8.5 <8.5 <2 <78 <14 <14 <4 <130 <20 38 <20 <180 <2.1 <2.1 <2.1 -- <2.4 <2.4 <2 -- <3.2 <3.2 <2 -- <2.1 <2.1 <2.1 -- <20 <20 <20 <180 <8.7 <8.7 <2 <75 <4.3 <4.3 <2 <40 <31 <31 <20 <290 <2 16 <2 20 <3.5 <3.5 420 140<3.2 <3.2 <2 <30 <3.1 <3.1 2.4 <29 <4.5 <4.5 <2 <42 <5.5 <5.5 <2 <51<2 <2 <2 <18 <2.5 <2.5 280 56 J <8.9 <8.9 <2 <82 2.3 2.1 4.2 <16 <5.8 <5.8 130 <54 <2 <2 <2 <15 <2.7 <2.7 190 <25 <4.6 <4.6 <2 <42 <3.5 <3.5 <2 <32 <3 <3 <2 <28 <4.9 <4.9 1,300 580 <2.9 4.8 <2 <27 <13 <13 <2 <120 <11 <11 <2 <100 <8.5 <8.5 120 <78 <5.4 <5.4 16 <50 TR0795 Page 7 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer Black Creek Aquifer PW-15R PZ-22 SMW-10 SMW-11GW0619-PW-15R GW0619-PZ-22 GW0619-SMW-10 GW0619-SMW-11 9/19/2019 7/23/2019 6/27/2019 6/26/2019 -------- 320-54519-1 320-52722-1 320-51903-1 320-51903-1320-54519-1 320-52722-2 320-51903-4 320-51903-7 8,700 J 10,000 <4 4,000 330,000 180,000 <210 UJ 1,600 J 63,000 38,000 <81 UJ 2,400 J14,000 3,800 <58 UJ 400 J 2,200 340 <79 UJ 190 J <67 <67 51 J 62 J 36,000 4,700 780 J 2,900 J8,900 1,100 <47 UJ 760 J 3,300 <53 <27 UJ <27 UJ 640 J <61 <30 UJ 72 J 1,500 J 760 J <160 UJ 180 J19,000 1,900 <58 UJ <58 UJ270<31 <15 UJ <15 UJ 3,500 1,200 <54 UJ <54 UJ 250 J <49 <24 UJ <24 UJ 550 J 130 <28 UJ 30 J700 J 680 <70 UJ 140 J 210 <92 <46 UJ <46 UJ 220 <120 <60 UJ <60 UJ 210 <82 <41 UJ <41 UJ <28 ------ <180 <20 <20 <20 <470 <20 <20 <20 240 ------270 ------ <180 <20 <20 <20 -------- -------- -------- -------- <170 <20 <20 <20 210 ------220 ------ <280 <20 <20 <20 <33 <2 <2 <2 170 140 <2 24<36 <2 <2 <2 <36 <2 <2 <2 <41 <2 <2 <2 <50 <2 <2 <2<31 <2 <2 <2 94 J 33 <2 9.8 <81 ------ <32 <2 <2 <2<60 43 <2 7.8 <30 <2 <2 <2 <39 <2 <2 <2 <42 <2 <2 <2 <32 <2 <2 <2 <33 <2 <2 <2 660 810 <2 29 <36 <2 <2 <2 <120 <2 <2 <2 <100 <2 <2 <2 <77 4 <2 34 <49 <2 <2 <2 TR0795 Page 8 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Black Creek Aquifer Floodplain Deposits Floodplain Deposits Floodplain Deposits SMW-12 LTW-01 LTW-03 LTW-04GW0619-SMW-12 GW0619-LTW-01 GW0619-LTW-03 GW0619-LTW-04 7/11/2019 7/17/2019 7/17/2019 7/17/2019 -------- 320-52290-1 320-52454-1 320-52454-1 320-52454-1320-52290-1 320-52454-1 320-52454-4 320-52454-6 1,700 19,000 12,000 16,000 3,900 45,000 150,000 96,000 1,300 30,000 34,000 31,000536,100 4,900 5,400 <7.9 1,200 160 620 <3.4 210 <34 36 1,900 23,000 9,300 19,0004408,300 2,400 7,100 <2.7 <27 <27 <27 <3 260 33 160 120 1,200 600 2,000<5.8 970 2,600 4,300 <2 <15 <15 <15 38 490 1,000 1,600 <2.4 <24 <24 <24 <2.8 140 42 5101107204802,300 <4.6 <46 <46 <46 <6 <60 <60 <60 <4.1 <41 <41 <41 -------- <20 <20 <20 <20 <20 <47 <46 <46 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <28 <27 <27 <2 2.4 <2 <2 19 170 140 440<2 <2.9 <2.8 <2.8 <2 <2.8 <2.7 <2.7 <2 <4 <4 <4 <2 <4.9 <4.9 <4.9<2 <2 <2 <2 <2 43 19 68 -------- <2 4.6 <2 2.9 <2 28 15 44 <2 <2 <2 <2 <2 <2.4 <2.4 <2.4 <2 <4.1 <4.1 <4.1 <2 <3.1 <3.1 <3.1 <2 <2.7 <2.7 <2.7 41 420 700 1,500 <2 <2.6 <2.6 <2.6 <2 <12 <12 <12 <2 <9.9 <9.8 <9.7 <2 37 <7.5 8 <2 11 <4.8 <4.8 TR0795 Page 9 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Floodplain Deposits Floodplain Deposits Perched Zone Perched Zone PIW-6S PIW-7S FTA-01 FTA-02GW0619-PIW-6S GW0619-PIW-7S GW0619-FTA-01 GW0619-FTA-02 7/17/2019 7/19/2019 6/27/2019 6/27/2019 -------- 320-52454-1 320-52624-1 320-51903-1 320-51903-1320-52454-5 320-52624-4 320-51903-3 320-51903-1 13,000 1,400 520 22,000 160,000 12,000 <210 UJ 11,000 J 35,000 2,400 390 J 8,800 J5,000 180 58 J 2,000 J 150 <79 <79 UJ 1,700 J <34 <34 77 J 2,400 J 8,700 1,100 1,500 J 6,400 J2,300 <47 290 J 2,400 J <27 <27 <27 UJ 1,300 J 31 <30 32 J 3,500 J 470 <160 <160 UJ 1,500 J1,700 <58 <58 UJ 950 J <15 <15 <15 UJ 19 J 1,100 88 <54 UJ 450 J <24 <24 <24 UJ 24,000 J 43 <28 <28 UJ 1,100 J490130<70 UJ 560 J <46 <46 <46 UJ <46 UJ <60 <60 <60 UJ <60 UJ <41 <41 <41 UJ <41 UJ -------- <20 <20 <20 <20 <47 <20 <20 <20 -------- -------- <20 <20 <20 120 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <28 <20 <20 <20 <2 <2 <2 2.5 150 26 11 140<2.9 <2 <2 <2 <2.8 <2 <2 2.9 <4.1 <2 <2 <2 <5 <2 <2 <2<2 <2 <2 2.1 18 <2 5.1 87 -------- <2 <2 2.1 21 16 <2 4.5 110 <2 <2 <2 <2 <2.4 <2 <2 17 <4.2 <2 <2 <2 <3.2 <2 <2 <2 <2.7 <2 <2 2.1 830 130 15 270 <2.6 <2 <2 <2 <12 <2 <2 <2 <9.9 <2 <2 <2 <7.7 <2 6.7 83 <4.9 <2 3.8 24 TR0795 Page 10 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone FTA-03 MW-1S MW-2S MW-7SGW0619-FTA-03 GW0619-MW-1S GW0619-MW-2S GW0619-MW-7S 6/27/2019 6/28/2019 7/10/2019 7/10/2019 -------- 320-51903-1 320-51904-1 320-52165-1 320-52165-1320-51903-2 320-51904-3 320-52165-1 320-52165-2 13,000 14,000 17,000 17,000 3,200 J 21,000 28,000 4,600 6,500 J 11,000 12,000 8,700780 J 1,600 2,500 1,500 820 J 1,300 J 1,600 1,200 1,200 J 1,300 2,500 1,800 6,500 J 9,700 12,000 13,0002,200 J 3,300 4,100 5,200 550 J 48 27 J 58 J 610 J 1,000 2,100 830 1,400 J 620 730 J 1,4001,100 J 430 320 650 <15 UJ <15 19 17 170 J 210 290 260 97 J <24 <24 <24 150 J 230 450 2702,100 J 370 510 1,100 <46 UJ <46 <46 <46 <60 UJ <60 <60 <60 <41 UJ <41 <41 <41 -------- <20 <20 <20 <20 <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 <2 <2 <2 <2 68 140 200 130<2 <2 <2 <2 2.2 18 9 6.2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 21 50 77 43 -------- 5.1 2.3 4.2 2.8 15 26 40 22 <2 <2 <2 <2 11 62 75 15 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 87 290 340 160 <2 <2 <2 <2 <2 <2 <2 <2 <2 10 4.7 <2 51 94 86 82 9.9 13 14 7.8 TR0795 Page 11 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone MW-9S MW-12S MW-23 MW-24GW0619-MW-9S GW0619-MW-12S GW0619-MW-23 GW0619-MW-24 6/25/2019 7/8/2019 6/25/2019 7/17/2019 -------- 320-51746-1 320-52171-1 320-51746-1 320-52464-1320-51746-4 320-52171-3 320-51746-2 320-52464-6 5,600 17,000 17,000 15,000 1,600 J 6,600 790 J 720,000 2,700 J 9,600 2,200 J 130,000360 J 1,500 180 J 31,000 360 J 980 250 J 7,400 220 J 980 130 J 1,400 7,000 J 10,000 4,400 J 8,1002,800 J 3,900 1,600 J 3,200 38 J <27 <27 UJ 1,400 200 J 540 150 J 1,200 310 J 540 450 J 2,100<58 UJ 63 <58 UJ 8,200 <15 UJ <15 <15 UJ <150 <54 UJ 140 <54 UJ 7,100 <24 UJ <24 <24 UJ <240 53 J 120 41 J 420170 J 330 290 J <700 <46 UJ <46 <46 UJ <460 <60 UJ <60 <60 UJ <600 <41 UJ <41 <41 UJ <410 -------- <20 <20 <20 <20 <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 <2 <2 <2 <2 140 130 45 200<2 <2 <2 <2 <2 3.8 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 10 30 7.7 110 -------- <2 2 <2 <2 5.1 23 6.5 21 <2 <2 <2 <2 2.2 16 <2 16 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 61 150 35 1,100 <2 <2 <2 <2 <2 <2 <2 <2 <2 6.9 <2 6.1 16 63 23 89 2.7 7.7 <2 2.2 TR0795 Page 12 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone MW-25 MW-27 MW-28 MW-30GW0619-MW-25 GW0619-MW-27 GW0619-MW-28 GW0619-MW-30 6/25/2019 6/25/2019 6/26/2019 7/2/2019 -------- 320-51746-1 320-51746-1 320-51904-1 320-52030-1320-51746-11 320-51746-5 320-51904-1 320-52030-2 17,000 11,000 2,900 18,000 2,700 J 240,000 J <210 UJ 3,300 8,100 J 62,000 J <81 UJ 9,4001,400 J 17,000 J <58 UJ 1,000 J 1,400 J 4,500 J <79 UJ 1,600 J 750 J 260 J <34 UJ 2,100 J 25,000 J 7,800 J <570 UJ 29,0009,800 J 2,900 J <47 UJ 11,000 <27 UJ <53 UJ <27 UJ <27 410 J 550 J <30 UJ 480 1,700 J 570 J <160 UJ 640360 J 810 J <58 UJ <58 <15 UJ 35 J <15 UJ <15 180 J 3,100 J <54 UJ 95 <24 UJ <49 UJ <24 UJ <24 190 J 240 J <28 UJ 1501,400 J 220 J <70 UJ 270 <46 UJ <92 UJ <46 UJ <46 <60 UJ <120 UJ <60 UJ <60 <41 UJ <82 UJ <41 UJ <41 -------- <20 <20 <20 <20 <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 <2 <2 <2 <2 190 110 28 190<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 33 23 7.3 33 -------- 2.4 2.8 <2 <2 15 16 4.3 10 <2 <2 <2 <2 4.2 <2 <2 6.3 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 160 130 35 160 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 80 23 20 61 4.2 <2 <2 3 TR0795 Page 13 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone NAF-01 NAF-02 NAF-03 NAF-04GW0619-NAF-01 GW0619-NAF-02 GW0619-NAF-03 GW0619-NAF-04 7/10/2019 6/27/2019 6/27/2019 7/15/2019 -------- 320-52165-1 320-51904-1 320-51904-1 320-52288-1320-52165-3 320-51904-4 320-51904-2 320-52288-5 22,000 160,000 J 54,000 J 270,000 J 20,000 2,900,000 J 260,000 J 240,000 20,000 780,000 J 110,000 J 420,0005,000 240,000 J 39,000 J 110,000 J 6,200 100,000 J 21,000 J 49,000 6,000 J 36,000 J 19,000 J 32,000 J 17,000 74,000 J 47,000 J 85,0007,400 32,000 J 23,000 J 28,000 840 23,000 J 57,000 J 1,100,000 2,900 17,000 J 9,200 J 110,000 2,700 21,000 J 6,000 J 100,0001,700 210,000 J 37,000 J 1,200,00070<770 UJ 600 J 6,500 750 27,000 J 4,900 J 60,000 480 7,300 J 6,800 J 340,000 820 14,000 J 3,300 J 160,0005,600 12,000 J 4,400 J 36,000 <46 <2,300 UJ <230 UJ <920 <60 <3,000 UJ <300 UJ <1,200 <41 <2,000 UJ <200 UJ <820 -------- <20 <20 <20 <170 <20 <20 <20 <450 -------- -------- <20 <20 <20 <170 -------- -------- -------- -------- <20 <20 <20 <160 -------- -------- <20 <20 <20 <270 2.4 2.4 <2 <17 490 3,300 1,100 4,800<2 <2 <2 <27 6.8 48 18 77 <2 <2 <2 <39 2.4 41 6.8 <47<2 <2 <2 <16 73 1,000 140 7,700 -------- 2.9 2.9 <2 <15 54 610 190 980 <2 <2 <2 <14 49 400 47 1,900 <2 <2 <2 <39 UJ <2 <2 <2 <30 <2 <2 <2 <26 330 8,000 870 34,000 J <2 <2 <25 <25 <2 44 <2 <1101017046<94 130 260 140 540 8.5 6.5 2.7 <46 TR0795 Page 14 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone NAF-06 NAF-07 NAF-08A NAF-09GW0619-NAF-06 GW0619-NAF-07 GW0619-NAF-08A GW0619-NAF-09 7/11/2019 6/27/2019 7/15/2019 7/2/2019 -------- 320-52282-1 320-51903-1 320-52288-1 320-52028-1320-52282-1 320-51903-6 320-52288-4 320-52028-4 100,000 J 37,000 J 37,000 J 42,000 J 810,000 93,000 J 7,400 5,900 300,000 46,000 J 17,000 22,000120,000 14,000 J 5,100 J 9,400 66,000 7,800 J 4,400 11,000 45,000 J 4,300 J 2,700 J 2,200 J 47,000 26,000 J 200,000 54,00020,000 10,000 J 110,000 35,000 78,000 J 610 J 5,500 480 29,000 2,000 J 2,100 1,100 6,800 5,100 J 3,000 1,100 J92,000 32,000 J 21,000 1,30060063 J <77 42 8,600 1,800 J 790 800 6,100 270 J 4,400 52 5,500 850 J 2,600 5204,700 J 2,400 J 1,800 860 <230 <46 UJ <230 <46 <300 <60 UJ <300 <60 <200 <41 UJ <200 <41 -------- <20 <20 <20 <20 <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 2.3 2.4 <2 10 1,400 220 3,300 1,300<2 <2 <2 <2 20 8.8 4.3 7 <2 <2 <2 <2 4.3 <2 <2 <2<2 <2 <2 <2 480 110 200 120 -------- 3.2 2.6 2.2 4.4 350 60 89 85 <2 <2 <2 <2 270 34 38 19 <2 UJ <2 <2 UJ <2 <2 <2 <2 <2 <2 <2 <2 <2 2,300 430 1,300 610 <2 <2 <2 <2 <2 <2 <2 <2393.8 3.8 <2 230 110 54 100 12 12 7.6 10 TR0795 Page 15 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone NAF-10 NAF-12 PW-01 PW-01GW0619-NAF-10 GW0619-NAF-12 PW-01-090919-D PW-01-090919 7/3/2019 7/17/2019 9/9/2019 9/9/2019 ----Field Duplicate -- 320-52030-1 320-52464-1 320-54217-1 320-54217-1320-52030-3 320-52464-4 320-54217-2 320-54217-1 23,000 120,000 J 7,500 8,300 4,700 230,000 23,000 25,000 10,000 400,000 9,400 10,0001,600 J 160,000 1,900 2,000 J 1,200 90,000 960 1,000 J 1,000 J 59,000 540 660 J 28,000 330,000 3,600 4,100 J9,800 31,000 1,200 1,300 88 670,000 410 490 740 230,000 400 490 J 2,700 200,000 470 6104101,100,000 880 J 900 J2111,000 <15 <15 470 560,000 270 280 J 67 710,000 100 110 J 480 380,000 110 130 J1,600 120,000 260 310 <46 <460 <46 <46 <60 <600 <60 <60 <41 <410 <41 <41 ----<2 <2 <20 <20 <20 <20 <20 <20 <20 <20 ----<2 <2 ----<4 <4 <20 <20 <20 <20 ----<2.1 <2.1 ----<2 <2 ----<2 <2 ----<2.1 <2.1 <20 <20 <20 <20 ----<2 <2 ----<2 <2 <20 <20 <20 <20 4.6 <2 <2 <2 240 6,500 J 58 61<2 <2 <2 <2 4.1 220 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 46 9,300 25 25 ----<2 <2 <2 5.3 J <2 <2 24 1,700 J 12 13 <2 <2 <2 <2 16 4,600 J 6.4 6.4 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 270 18,000 J 100 110 <2 <2 <2 <2 <2 <2 <2 <2 <2 42 J <2 <2 99 750 J 100 95 11 42 6.4 6.6 TR0795 Page 16 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone PZ-11 PZ-11 PZ-12 PZ-13GW0619-PZ-11 GW0619-PZ-11-D GW0619-PZ-12 GW0619-PZ-13 7/16/2019 7/16/2019 7/11/2019 6/25/2019 --Field Duplicate ---- 320-52322-1 320-52322-1 320-52282-1 320-51746-1320-52322-1 320-52322-2 320-52282-2 320-51746-6 4,900 B 6,200 B 6,800 44,000 J 7,100 7,500 63,000 J 8,000 J 4,800 5,000 13,000 20,000 J8309103,000 3,200 J 650 710 990 3,300 J 800 920 360 4,600 J 3,300 3,600 5,300 110,000 J1,100 1,200 1,200 62,000 J 530 560 7,600 320 J 320 350 770 1,300 J 220 260 480 3,200 J1,200 1,200 5,800 J 1,600 J <15 <15 18 28 J 140 130 450 290 J 29 30 150 200 J 120 110 210 320 J110 J 110 J 200 J 2,300 J <46 <46 <46 <46 UJ <60 <60 <60 <60 UJ <41 <41 <41 <41 UJ -------- <20 <20 <20 <20 <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 2.8 2.6 <2 <2 43 43 67 2,400<2 <2 <2 <2 3 3.2 <2 3.1 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 23 23 38 120 -------- 5.2 4.9 3.2 <2 20 20 24 55 <2 <2 <2 <2 6.2 6 4.4 55 <2 <2 <2 UJ <2 <2 <2 <2 <2 <2 <2 <2 <2 64 65 150 910 <2 <2 <2 <2 <2 <2 <2 <22.2 <2 <2 3.5 42 43 120 78 16 15 8.9 6.9 TR0795 Page 17 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone PZ-14 PZ-15 PZ-19R PZ-20RGW0619-PZ-14 GW0619-PZ-15 GW0619-PZ-19R GW0619-PZ-20R 7/3/2019 6/25/2019 7/1/2019 7/1/2019 -------- 320-52030-1 320-51746-1 320-52028-1 320-52028-1320-52030-4 320-51746-3 320-52028-2 320-52028-1 32,000 10,000 6,500 3,500 5,300 2,800 J 3,000 820 14,000 9,000 J 6,100 2,6002,800 J 1,300 J 720 240 2,100 J 1,100 J 740 190 3,100 J 1,000 J 450 J 160 J 48,000 19,000 J 4,400 2,00017,000 7,600 J 1,900 870 <27 <27 UJ 31 <2 620 550 J 230 98 980 970 J 390 7572180 J 70 3.222<15 UJ 5 <2 380 130 J 76 20 <24 <24 UJ 23 <2 410 140 J 57 17280620 J 250 38 <46 <46 UJ <4.6 <2.3 <60 <60 UJ <6 <3 <41 <41 UJ <4.1 <2 -------- <20 <20 <20 <20 <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 <2 <2 4.2 5 460 160 63 28<2 <2 <2 <2 <2 <2 3.7 6 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 52 27 34 36 -------- <2 <2 6.9 8.2 22 11 31 38 <2 <2 <2 <2 20 5.2 7.5 5.8 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 310 160 90 67 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 130 44 32 24 6.5 4.9 16 22 TR0795 Page 18 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone PZ-21R PZ-24 PZ-26 PZ-27GW0619-PZ-21R GW0619-PZ-24 GW0619-PZ-26 GW0619-PZ-27 7/2/2019 6/25/2019 6/25/2019 6/25/2019 -------- 320-52030-1 320-51746-1 320-51746-1 320-51746-1320-52030-1 320-51746-10 320-51746-9 320-51746-8 2,100 36,000 240 500 920 1,300 J <210 UJ 5,800 J 1,800 4,100 J 190 J 1,300 J190 J 810 J <58 UJ 310 J 220 J 710 J <79 UJ 150 J 150 J 190 J 58 J 120 J 1,000 14,000 J <570 UJ 660 J4105,200 J 140 J 270 J 4.3 <27 UJ <27 UJ 29 J 97 180 J <30 UJ 180 J 88 330 J <160 UJ <160 UJ15 J <58 UJ <58 UJ 440 J2.3 <15 UJ <15 UJ <15 UJ 22 93 J <54 UJ 110 J 12 <24 UJ <24 UJ <24 UJ 20 82 J <28 UJ <28 UJ41280 J <70 UJ <70 UJ <2.3 <46 UJ <46 UJ <46 UJ <3 <60 UJ <60 UJ <60 UJ <2 <41 UJ <41 UJ <41 UJ -------- <20 <20 <20 <20 <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 4 2.3 5.5 3.6 20 140 15 12<2 <2 <2 <2 4 <2 4.4 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 27 25 19 11 -------- 7.1 <2 7.6 5.2 29 16 27 13 <2 <2 <2 <2 6.9 2.4 3.2 2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 46 110 28 27 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 28 160 14 13 19 3.9 23 12 TR0795 Page 19 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Perched Zone Perched Zone Perched Zone Perched Zone PZ-28 PZ-35 SMW-02 SMW-07GW0619-PZ-28 GW0619-PZ-35 GW0619-SMW-02 GW0619-SMW-07 6/25/2019 7/2/2019 7/17/2019 7/8/2019 -------- 320-51746-1 320-52028-1 320-52454-1 320-52171-1320-51746-7 320-52028-3 320-52454-3 320-52171-5 1,400 1,600 18,000 12,000 460 J 560 2,900 750 1,300 J 1,500 20,000 2,200160 J 260 3,200 220 190 J 390 1,100 280 46 J 410 J 56 72 J 3,200 J 1,100 21,000 2,7001,100 J 530 9,900 770 <2 UJ 11 <27 <27 54 J 140 120 150 150 J 92 J 810 180<2.9 UJ 33 J <58 <58 <2 UJ 2.1 17 <15 30 J 18 320 <54 <2 UJ 6.1 <24 <24 16 J 29 67 4382 J 53 J 510 130 <2.3 UJ <2 <46 <46 <3 UJ <2 <60 <60 <2 UJ <2 <41 <41 -------- <20 <20 <20 <20 <20 <20 <46 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <27 <20 <2 3.7 2.1 5 28 23 88 25<2 <2 <2.8 <2 2.6 4 <2.7 <2 <2 <2 <4 <2 <2 <2 <4.9 <2<2 <2 <2 <2 11 24 41 48 -------- 3 5.5 <2 25 11 26 22 23 <2 <2 <2 <2 4.3 9 <2.4 <2 <2 <2 <4.1 <2 <2 <2 <3.1 <2 <2 <2 <2.7 3.9 35 43 230 27 <2 <2 <2.6 <2 <2 <2 <12 <2 <2 <2 <9.7 <2 14 26 34 1,300 8.9 16 <4.8 2.2 TR0795 Page 20 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Surficial Aquifer Surficial Aquifer Surficial Aquifer Surficial Aquifer INSITU-01 MW-13D MW-14D MW-15DRRGW0619-INSITU-01 GW0619-MW-13D GW0619-MW-14D MW-15DRR-091119 6/20/2019 7/11/2019 7/11/2019 9/12/2019 -------- 320-51662-1 320-52282-1 320-52282-1 320-54317-1320-51662-3 320-52282-5 320-52282-4 320-54317-3 580 37,000 J 9,700 3,500 210 J 180,000 180,000 31,000 460 J 66,000 35,000 6,30036 J 16,000 8,600 940 5.1 J 5,200 3,000 320 <5 UJ 400 700 130 800 J 21,000 7,900 3,600230 J 5,900 3,100 1,000 <2 UJ <270 660 8,800 17 J 2,100 450 1,200 38 J 1,600 <1,600 960<2 UJ 3,000 J 2,300 21,000 <2 UJ <150 <150 30 5 J 1,500 1,700 320 <2 UJ <240 <240 1,100 <2 UJ 1,700 540 37025 J 2,800 <700 170 <2 UJ <460 <460 <46 <2 UJ <600 <600 <60 <2 UJ <410 <410 <41 ------<2 --<20 <20 <20 --<20 <20 <20 <2 UJ ----<2 <2 UJ ----<4 --<20 38 <20 ------<2.1 ------<2 ------<2 ------<2.1 --<20 <20 <20 <2 UJ ----<2 <2 UJ ----<2 --<20 <20 <20 <2 <2 <2 8.2 --590 160 41--<2 <2 <2 <2 <2 <2 3.3 --<2 <2 <2 <2 <2 <2 <2--<2 <2 <2 <2 270 120 18 ------<2 <2 2.8 3.3 13 4.1 120 90 18 --<2 <2 <2 <2 5.8 11 5.8 --<2 UJ <2 UJ <2 --<2 <2 <2 --<2 <2 <2 11 2,400 560 85 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 29 400 62 <2 <2 7.3 35 TR0795 Page 21 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Surficial Aquifer Surficial Aquifer Surficial Aquifer Surficial Aquifer MW-16D MW-17D MW-18D MW-19DGW0619-MW-16D GW0619-MW-17D GW0619-MW-18D GW0619-MW-19D 7/15/2019 7/15/2019 7/15/2019 7/9/2019 -------- 320-52288-1 320-52288-1 320-52288-1 320-52149-1320-52288-2 320-52288-3 320-52288-6 320-52149-1 1,300 690 810 1,100 500 260 58 720 430 J 490 110 83076 J 81 J 4.6 J 170 39 14 <2 78 12 J <2 <2 <2 1,300 1,700 430 1,100330510100360 38 <2 <2 <2 22 20 <2 15 31 25 4.1 2765<2.9 <2 <2 <2 <2 <2 <2 12 7.4 2.9 12 <2 <2 <2 <2 12 5.9 <2 4.817102.1 18 <2.3 <2.3 <2 <2 <3 <3 <2 <2 <2 <2 <2 <2 -------- <20 <20 <20 <20 <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 <2 <2 <2 <2 10 11 3.8 11<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 3.9 2.9 <2 4.7 -------- <2 <2 <2 <24.2 4.1 <2 5.6 <2 <2 <2 <2 <2 <2 <2 <2 <2 UJ <2 UJ <2 UJ <2 <2 <2 <2 <2 <2 <2 <2 <2 13 16 9 21 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 21 3.6 <2 21 <2 <2 <2 <2 TR0795 Page 22 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Surficial Aquifer Surficial Aquifer Surficial Aquifer Surficial Aquifer MW-20D MW-21D MW-22D PIW-1DGW0619-MW-20D GW0619-MW-21D GW0619-MW-22D GW0619-PIW-1D 7/9/2019 7/11/2019 7/15/2019 7/19/2019 -------- 320-52149-1 320-52282-1 320-52288-1 320-52621-1320-52149-2 320-52282-3 320-52288-1 320-52621-1 1,900 380 1,800 11,000 J 14,000 110 290 14,000 3,300 290 580 9,7006002883 J 1,800 120 <2 49 300 <34 <2 5.5 J <34 2,700 860 1,400 9,9006502904503,600 <27 <2 <2 <27 <30 6.1 18 48 <160 8.3 J 29 42087<2 <2.9 <58 <15 <2 <2 <15 110 6 12 150 <24 <2 <2 <24 <28 <2 11 37824.6 17 290 J <46 <2 <2.3 <46 <60 <2 <3 <60 <41 <2 <2 <41 -------- <20 <20 <20 <20 <20 <20 <20 <46 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <27 <2 <2 <2 <2 21 7.1 12 70<2 <2 <2 <2.8 <2 <2 <2 <2.7 <2 <2 <2 <4 <2 <2 <2 <4.9<2 <2 <2 <2 11 <2 5.5 14 -------- <2 <2 <2 <2132.4 5.7 11 <2 <2 <2 <2 <2 <2 <2 <2.4 <2 <2 UJ <2 UJ <4.1 <2 <2 <2 <3.1 <2 <2 <2 <2.6 44 11 16 140 <2 <2 <2 <2.6 <2 <2 <2 <11 <2 <2 <2 <9.7 68 <2 20 <7.5 <2 <2 <2 <4.8 TR0795 Page 23 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Surficial Aquifer Surficial Aquifer Surficial Aquifer Surficial Aquifer PIW-1D PIW-5S PIW-9S PIW-10SGW0619-PIW-1D-D GW0619-PIW-5S GW0619-PIW-9S GW0619-PIW-10S 7/19/2019 7/19/2019 7/18/2019 7/22/2019 Field Duplicate ------ 320-52621-1 320-52624-1 320-52464-1 320-52621-1320-52621-2 320-52624-5 320-52464-1 320-52621-3 8,700 J 79,000 J 7,300 4,400 15,000 35,000 150,000 1,500 9,700 38,000 34,000 3,0001,800 10,000 8,400 520 320 8,700 1,500 210 <34 4,800 <34 <34 10,000 100,000 7,500 5,7003,600 44,000 2,700 2,100 <27 4,300 <27 <27 51 1,300 170 150 480 4,700 800 190<58 16,000 800 <58 <15 65 <15 <15 160 770 1,500 <54 <24 1,800 <24 <24 33 1,600 690 <28350 J 3,000 650 130 <46 <46 <46 <46 <60 <60 <60 <60 <41 <41 <41 <41 -------- <20 <180 <20 <20 <24 <470 <20 <24 -------- -------- <20 <180 <20 <20 -------- -------- -------- -------- <20 <170 <20 <20 -------- -------- <20 <280 <20 <20 <2 <18 <2 <2 70 1,100 120 49<2 <29 <2 <2 <2 <28 <2 <2 <2.1 <41 <2 <2.1 <2.6 <50 <2 <2.6<2 <17 <2 <2 14 140 43 7.9 -------- <2 <15 <2 <21158236.6 <2 <14 <2 <2 <2 <24 <2 <2 <2.2 <42 <2 <2.1 <2 <32 <2 <2 <2 <27 <2 <2 140 910 250 47 <2 <26 <2 <2 <6.1 <120 <2 <6.1 <5.1 <99 <2 <5.1 4.4 <77 13 12 <2.5 <49 <2 <2.5 TR0795 Page 24 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Surficial Aquifer Surficial Aquifer Surficial Aquifer Surficial Aquifer PW-02 PW-02 PW-03 PW-03PW-02-091119 PW-02-091119-Z PW-03-091119 PW-03-091119-Z 9/11/2019 9/11/2019 9/11/2019 9/11/2019 -------- 320-54274-1 320-54278-1 320-54317-1 320-54319-1320-54274-1 320-54278-1 320-54317-1 320-54319-1 7,400 8,100 78,000 54,000 9,500,000 9,900,000 5,900 5,100 2,800,000 3,000,000 18,000 16,000750,000 800,000 5,800 5,200 250,000 270,000 1,800 1,400 90,000 85,000 46 <34 470,000 520,000 130,000 120,000180,000 180,000 76,000 69,000 35,000 39,000 130 93 43,000 40,000 750 460 75,000 78,000 11,000 9,600250,000 270,000 47,000 42,0001,900 2,600 93 69 110,000 110,000 8,000 7,100 2,200 3,600 520 440 18,000 19,000 4,900 3,60036,000 33,000 12,000 11,000 <2,300 <4,600 <46 <46 <3,000 <6,000 <60 <60 <2,000 <4,100 <41 <41 <2 <2 <2 <2 <20 <20 <20 <20 <20 <20 <52 <52 <2 <2 <8.5 <8.5 UJ <4 <4 <14 <14 UJ <20 <20 <20 <20 <2.1 <2.1 <2.1 <2.1 <2 <2 <2.4 <2.4 <2 <2 <3.2 <3.2 <2.1 <2.1 <2.1 <2.1 <20 <20 <20 <20 <2 <2 <8.7 <8.7 <2 <2 <4.3 <4.3 <20 <20 <31 <31 <2 <2 <2 <2 68 82 5,400 4,700<2 <2 <3.2 <3.2 <2 <2 <3.1 <3.1 <2 <2 <4.5 <4.5 <2 <2 <5.5 <5.5<2 <2 <2 <2 26 31 310 260 <2 <2 <8.9 <8.9 <2 <2 3.3 3.6 13 16 150 120 <2 <2 <2 <2 4.7 5.4 <2.7 <2.7 <2 <2 <4.6 <4.6 <2 <2 <3.5 <3.5 <2 <2 <3 <3 120 140 3,700 3,400 <2 <2 <2.9 <2.9 <2 <2 <13 <13 <2 <2 <11 <11 85 100 16 13 3.6 2.3 <5.4 <5.4 TR0795 Page 25 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Surficial Aquifer Surficial Aquifer Surficial Aquifer Surficial Aquifer PW-04 PW-04 PW-05 PW-06PW-04-091119 PW-04-091119-Z PW-05-090919 PW-06-091019 9/11/2019 9/11/2019 9/9/2019 9/10/2019 -------- 320-54294-1 320-54294-1 320-54174-1 320-54231-1320-54294-4 320-54294-5 320-54174-1 320-54231-1 940 880 1,600 950 270 320 <210 <210 770 870 730 5102803107374 66 68 130 <79 <2 <2 <34 UJ <34 710 790 1,600 1,100310340430380 <2 <2 <27 <27 8.4 4.3 50 <30 120 160 J <160 <1604.4 4.4 J <58 <58 <2 <2 <15 <15 6.7 8 <54 <54 <2 <2 <24 <24 5.9 5 <28 <284764<70 <70 <2 <2 <46 <46 <2 <2 <60 <60 <2 <2 <41 <41 <2 <2 <2 <2 <20 <20 <20 <20 <20 <20 <20 <20 <2 <2 <2 <2 <4 <4 <4 <4 <20 <20 <20 <20 <2.1 <2.1 <2.1 <2.1 <2 <2 <2 <2 <2 <2 <2 <2 <2.1 <2.1 <2.1 <2.1 <20 <20 <20 <20 <2 UJ <2 <2 <2 <2 <2 <2 <2 <20 <20 <20 <20 <2 <2 <2 <2 11 11 13 8.8<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 5.1 6.1 4.5 3.7 <2 <2 <2 <2 <2 <2 <2 <23.5 3.7 3 3 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 17 17 15 12 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 7.7 4.1 <2 <2 <2 <2 TR0795 Page 26 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Surficial Aquifer Surficial Aquifer Surficial Aquifer Surficial Aquifer PW-07 PW-07 SMW-01 SMW-03BPW-07-091319 PW-07-091319-Z GW0619-SMW-01 GW0619-SMW-03B 9/13/2019 9/13/2019 6/25/2019 7/12/2019 -------- 320-54328-1 320-54328-1 320-51746-1 320-52285-1320-54328-2 320-54328-3 320-51746-12 320-52285-2 1,100 1,000 2,100 12,000 400 360 360 J 460,000 1,000 960 980 J 72,000140140210 J 10,000 J 87 81 54 J <790 <2 <2 3.1 J <340 1,400 1,300 1,700 J 56,000440420570 J 11,000 <2 <2 <2 UJ 430 5.1 3.1 55 J <300 41 59 J 110 J 2,200<2 <2 <2 UJ 27,000 <2 <2 <2 UJ <150 9.1 8.8 11 J 4,800 <2 <2 <2 UJ <240 6.4 6 4.9 J <2801316 J 43 J 710 <2 <2 <2 UJ <460 <2 <2 <2 UJ <600 <2 <2 <2 UJ <410 <2 <2 ---- <20 <20 <20 <20 <20 <20 <20 <24 <2 <2 ---- <4 <4 ---- <20 <20 <20 <20 <2.1 <2.1 ---- <2 <2 ---- <2 <2 ---- <2.1 <2.1 ---- <20 <20 <20 <20 <2 <2 ---- <2 <2 ---- <20 <20 <20 <20 <2 <2 2 2.4 33 32 17 210<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2.1 <2 <2 <2 <2.6<2 <2 <2 <2 6.2 4.4 9.2 41 <2 <2 ---- <2 <2 <2 <24.7 4.2 6.2 45 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2.2 <2 <2 <2 <2 <2 <2 <2 <2 21 21 25 600 <2 <2 <2 <2 <2 <2 <2 <6.1 <2 <2 <2 <5.2 2.7 <2 9.9 120 <2 <2 2.9 <2.5 TR0795 Page 27 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported Surficial Aquifer Surficial Aquifer Surficial Aquifer Surficial Aquifer SMW-04B SMW-05P SMW-08B SMW-09GW0619-SMW-04B GW0619-SMW-05P GW0619-SMW-08B GW0619-SMW-09 7/12/2019 7/25/2019 7/16/2019 7/11/2019 -------- 320-52285-1 320-52722-1 320-52322-1 320-52282-1320-52285-3 320-52722-3 320-52322-3 320-52282-6 13,000 19,000 8,700 B 14,000 41,000 220,000 260,000 1,800 7,000 45,000 47,000 3,1001,600 J 13,000 12,000 920 430 4,700 2,900 890 61 J 460 540 66 4,800 27,000 7,700 4,8009905,100 2,800 1,400 46 1,200 550 22,000 56 210 <300 560 180 1,300 J <1,600 2,0005506,500 4,400 54,000 J <15 40 <150 88 450 3,100 2,900 260 <24 240 <240 610 64 390 300 2,00089500<700 360 J <46 <92 <460 <46 <60 <120 <600 <60 <41 <82 <410 <41 -------- <20 <20 <20 <20 <24 <20 <20 <20 -------- -------- <20 <20 <20 <20 -------- -------- -------- -------- <20 <20 <20 <20 -------- -------- <20 <20 <20 <20 2.9 3.4 3.1 3.1 42 120 110 340<2 <2 <2 <2 <2 <2 <2 <2 <2.1 <2 <2 <2 <2.6 <2 <2 <2<2 <2 <2 <2 46 140 81 66 -------- 4.2 3.5 4.9 16 36 120 34 79 <2 <2 <2 <2 <2 4.9 4.2 <2 <2.2 <2 <2 <2 UJ <2 <2 <2 <2 <2 <2 <2 2.6 95 260 550 200 <2 <2 <2 <2 <6.1 <2 <2 <2 <5.2 <2 <2 <2 5,800 6,900 360 91 <2.5 2.7 6.1 <2 TR0795 Page 28 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EB EB EBGW0619-EQBLK-062719 GW0619-EQBLK-070819GW0619-EQBLK-070819-02 6/27/2019 7/8/2019 7/8/2019 Equipment Blank Equipment Blank Equipment Blank 320-51903-1 320-52171-1 320-52171-1320-51903-5 320-52171-1 320-52171-2 <4 <4 <4 <210 UJ <5 <5 <81 UJ <2 <2<58 UJ <2 <2 <79 UJ <2 <2 <34 UJ <2 <2 <570 UJ <10 <10<47 UJ <20 <20 <27 UJ <2 <2 <30 UJ <2 <2 <160 UJ <2 <2<58 UJ <2 <2 <15 UJ <2 <2 <54 UJ <2 <2 <24 UJ <2 <2 <28 UJ <2 <2 <70 UJ <2 <2 <46 UJ <2 <2 <60 UJ <2 <2 <41 UJ <2 <2 ------ <20 <20 <20 <20 <20 <20 ------ ------ <20 <20 <20 ------ ------ ------ ------ <20 <20 <20 ------ ------ <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 ------ <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 29 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EB EB EBGW0619-EQBLK-070919 GW0619-EQBLK-071019 GW0619-EB-02-071119 7/9/2019 7/10/2019 7/11/2019 Equipment Blank Equipment Blank Equipment Blank 320-52149-1 320-52165-1 320-52290-1320-52149-3 320-52165-4 320-52290-3 <4 <4 <4 6.7 <5 <5 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <10 <10 <10<20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 ------ <20 <20 <20 <20 <20 <20 ------ ------ <20 <20 <20 ------ ------ ------ ------ <20 <20 <20 ------ ------ <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 ------ <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 30 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EB EB EBGW0619-EB-071119 GW0619-EB-071219 GW0619-EB-02-071519 7/11/2019 7/12/2019 7/15/2019 Equipment Blank Equipment Blank Equipment Blank 320-52290-1 320-52285-1 320-52285-1320-52290-2 320-52285-1 320-52285-5 <4 <4 <4 <5 <5 <5 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 UJ <10 <10 <10<20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 ------ <20 <20 <20 <20 <20 <20 ------ ------ <20 <20 <20 ------ ------ ------ ------ <20 <20 <20 ------ ------ <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 ------ <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 31 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EB EB EBGW0619-EB-071519 GW0619-EB-01-071619 GW0619-EB-02-071619 7/15/2019 7/16/2019 7/16/2019 Equipment Blank Equipment Blank Equipment Blank 320-52285-1 320-52322-1 320-52322-1320-52285-4 320-52322-5 320-52322-6 <4 72 <4 <5 <5 <5 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <10 <10 <10<20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 ------ <20 <20 <20 <20 <20 <20 ------ ------ <20 <20 <20 ------ ------ ------ ------ <20 <20 <20 ------ ------ <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 ------ <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 32 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EB EB EBGW0619-EB-071719 GW0619-EB-071819 GW0619-EB-071919 7/17/2019 7/18/2019 7/19/2019 Equipment Blank Equipment Blank Equipment Blank 320-52464-1 320-52464-1 320-52624-1320-52464-5 320-52464-3 320-52624-1 <4 <4 <4 <5 <5 <210 <2 <2 <81<2 <2 <58 <2 <2 <79 <2 <2 <34 <10 <10 <570<20 <20 <47 <2 <2 <27 <2 <2 <30 <2 <2 <160<2 <2 <58 <2 <2 <15 <2 <2 <54 <2 <2 <24 <2 <2 <28 <2 <2 <70 <2 <2 <46 <2 <2 <60 <2 <2 <41 ------ <20 <20 <20 <20 <20 <20 ------ ------ <20 <20 <20 ------ ------ ------ ------ <20 <20 <20 ------ ------ <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 ------ <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 33 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EB EB EBGW0619-EQBLK-072219 EQBLK-090919-01 EQBLK-090919-02 7/22/2019 9/9/2019 9/9/2019 Equipment Blank Equipment Blank Equipment Blank 320-52621-1 320-54174-1 320-54174-1320-52621-4 320-54174-2 320-54174-3 <4 <4 <4 <210 <210 <210 <81 <81 <81<58 <58 <58 <79 <79 <79 <34 <34 UJ <34 UJ <570 <570 <570<47 <47 <47 <27 <27 <27 <30 <30 <30 <160 <160 <160<58 <58 <58 <15 <15 <15 <54 <54 <54 <24 <24 <24 <28 <28 <28 <70 <70 <70 <46 <46 <46 <60 <60 <60 <41 <41 <41 --<2 <2 <20 <20 <20 <20 <20 <20 --<2 <2 --<4 <4 <20 <20 <20 --<2.1 <2.1 --<2 <2 --<2 <2 --<2.1 <2.1 <20 <20 <20 --<2 <2 --<2 <2 <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 --<2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 34 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EB EB EBEQBLK-091019-01 EQBLK-091019-02 EB-091919 9/10/2019 9/10/2019 9/19/2019 Equipment Blank Equipment Blank Equipment Blank 320-54176-1 320-54176-1 320-54522-1320-54176-2 320-54176-3 320-54522-2 <4 <4 <4 <210 <210 <5 <81 <81 <2<58 <58 <2 <79 <79 <2 <34 <34 UJ <2 780 570 <10<47 <47 <20 <27 <27 <2 <30 <30 <2 <160 <160 <2<58 <58 <2 <15 <15 <2 <54 <54 <2 <24 <24 <2 <28 <28 <2 <70 <70 <2 <46 <46 <2 <60 <60 <2 <41 <41 <2 <2 <2 <2 <20 <20 <20 <20 <20 <20 <2 <2 <2 <4 <4 <4 <20 <20 <20 <2.1 <2.1 -- <2 <2 -- <2 <2 -- <2.1 <2.1 -- <20 <20 <20 <2 <2 <2 <2 <2 <2 <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 35 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EQBLK EQBLK EQBLKGW0619-EQBLK-061919 GW0619-EQBLK-062019 GW0619-EQBLK-062119 6/19/2019 6/20/2019 6/21/2019 Equipment Blank Equipment Blank Equipment Blank 320-51662-1 320-51662-1 320-51662-1320-51662-4 320-51662-5 320-51662-6 <4 <4 <4 <5 UJ <5 UJ <5 UJ <2 UJ <2 UJ <2 UJ<2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <5 UJ <5 UJ <5 UJ <10 UJ <10 UJ <10 UJ<20 UJ <20 UJ <20 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ<2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ ------ ------ ------ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ ------ ------ ------ ------ ------ ------ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ <2 UJ ------ <2 <2 <2 ------------ <2 <2 <2 ------ <2 <2 <2------ <2 <2 <2 ------ <2 <2 <2<2 <2 <2 ------ <2 <2 <2 ------ ------ ------ <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 36 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EQBLK EQBLK EQBLKGW0619-EQBLK GW0619-EQBLK-062619 GW0619-EQBLK-062819 6/25/2019 6/26/2019 6/28/2019 Equipment Blank Equipment Blank Equipment Blank 320-51746-1 320-51904-1 320-51904-1320-51746-1 320-51904-5 320-51904-6 <4 <4 <4 <5 UJ <210 UJ <210 <2 UJ <81 UJ <81<2 UJ <58 UJ <58 <2 UJ <79 UJ <79 <2 UJ 58 J 59 <10 UJ <570 UJ <570<20 UJ <47 UJ <47 <2 UJ <27 UJ <27 <2 UJ <30 UJ <30 <2 UJ <160 UJ <160<2 UJ <58 UJ <58 <2 UJ <15 UJ <15 <2 UJ <54 UJ <54 <2 UJ <24 UJ <24 <2 UJ <28 UJ <28 <2 UJ <70 UJ <70 <2 UJ <46 UJ <46 <2 UJ <60 UJ <60 <2 UJ <41 UJ <41 ------ <20 <20 <20 <20 <20 <20 ------ ------ <20 <20 <20 ------ ------ ------ ------ <20 <20 <20 ------ ------ <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 ------ <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 37 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported ------ EQBLK EQBLK EQBLKGW0619-EQBLK-070119 GW0619-EQBLK-070219 GW0619-EQBLK-070319 7/1/2019 7/2/2019 7/3/2019 Equipment Blank Equipment Blank Equipment Blank 320-52028-1 320-52028-1 320-52030-1320-52028-5 320-52028-6 320-52030-5 <4 <4 <4 <5 <5 <5 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 UJ <10 <10 <10<20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 ------ <20 <20 <20 <20 <20 <20 ------ ------ <20 <20 <20 ------ ------ ------ ------ <20 <20 <20 ------ ------ <20 <20 <20 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 ------ <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 38 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported -------- EQBLK EQBLK EQBLK EQBLKGW0619-EB-02-072319 GW0619-EB-072519 EB-09119-01 EB-09119-02 7/23/2019 7/25/2019 9/11/2019 9/11/2019 Equipment Blank Equipment Blank Equipment Blank Equipment Blank 320-52722-1 320-52722-1 320-54299-1 320-54299-1320-52722-5 320-52722-6 320-54299-2 320-54299-3 <4 <4 <4 <4 <210 <210 <5 <5 <81 <81 <2 <2<58 <58 <2 <2 <79 <79 <2 <2 <34 <34 <2 <2 <570 <570 <10 <10<47 <47 <20 <20 <27 <27 <2 <2 <30 <30 <2 <2 <160 <160 <2 <2<58 <58 <2 <2 <15 <15 <2 <2 <54 <54 <2 <2 <24 <24 <2 <2 <28 <28 <2 <2 <70 <70 <2 <2 <46 <46 <2 <2 <60 <60 <2 <2 <41 <41 <2 <2 ----<2 <2 <20 <20 <20 <20 <20 <20 <20 <20 ----<2 <2 ----<4 <4 <20 <20 <20 <20 ----<2.1 <2.1 ----<2 <2 ----<2 <2 ----<2.1 <2.1 <20 <20 <20 <20 ----<2 <2 ----<2 <2 <20 <20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 ----<2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 39 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported -------- EQBLK EQBLK EQBLK FBLKEB-091219-01 EB-091219-02 EB-091319 GW0619-FB-01-072319 9/12/2019 9/12/2019 9/13/2019 7/23/2019 Equipment Blank Equipment Blank Equipment Blank Field Blank 320-54294-1 320-54294-1 320-54328-1 320-52722-1320-54294-1 320-54294-2 320-54328-1 320-52722-4 <4 <4 <4 <4 <5 <5 <5 <210 <2 <2 <2 <81<2 <2 <2 <58 <2 <2 <2 <79 <2 <2 <2 <34 <10 <10 <10 <570<20 <20 <20 <47 <2 <2 <2 <27 <2 <2 <2 <30 <2 <2 <2 <160<2 <2 <2 <58 <2 <2 <2 <15 <2 <2 <2 <54 <2 <2 <2 <24 <2 <2 <2 <28 <2 <2 <2 <70 <2 <2 <2 <46 <2 <2 <2 <60 <2 <2 <2 <41 <2 <2 <2 -- <20 <20 <20 <20 <20 <20 <20 <20 <2 <2 <2 -- <4 <4 <4 -- <20 <20 <20 <20 <2.1 <2.1 <2.1 -- <2 <2 <2 -- <2 <2 <2 -- <2.1 <2.1 <2.1 -- <20 <20 <20 <20 <2 <2 <2 -- <2 <2 <2 -- <20 <20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 -- <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 40 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported -------- FBLK FBLK FBLK FBLKFBLK-090919 FB-091019-01 FB-091119 FB-091219 9/9/2019 9/10/2019 9/11/2019 9/12/2019 Field Blank Field Blank Field Blank Field Blank 320-54174-1 320-54176-1 320-54299-1 320-54294-1320-54174-4 320-54176-4 320-54299-1 320-54294-3 <4 <4 <4 <4 <210 <210 <5 <5 <81 <81 <2 <2<58 <58 <2 <2 <79 <79 <2 <2 <34 UJ <34 <2 <2 <570 570 <10 <10<47 <47 <20 <20 <27 <27 <2 <2 <30 <30 <2 <2 <160 <160 <2 <2<58 <58 <2 <2 <15 <15 <2 <2 <54 <54 <2 <2 <24 <24 <2 <2 <28 <28 <2 <2 <70 <70 <2 <2 <46 <46 <2 <2 <60 <60 <2 <2 <41 <41 <2 <2 <2 <2 <2 <2 <20 <20 <20 <20 <20 <20 <20 <20 <2 <2 <2 <2 <4 <4 <4 <4 <20 <20 <20 <20 <2.1 <2.1 <2.1 <2.1 <2 <2 <2 <2 <2 <2 <2 <2 <2.1 <2.1 <2.1 <2.1 <20 <20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2 <20 <20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 41 of 42 October 2019 TABLE 9-3 ONSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location IDField Sample ID Sample Date QA/QC SDGLab Sample IDTable 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxAPFO3OA PFO4DA PFO5DA PMPAPEPA PFESA-BP1 PFESA-BP2 Byproduct 4Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-GOther PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic AcidPerfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic AcidPerfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic AcidPerfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS Notes: 1. Bold - Analyte detected above associated reporting limit2. Field sample IDs with "-Z" appended indicates sample was filtered at the time of sample of collection B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SDG - Sample Delivery GroupSOP - standard operating procedureUJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -- not reported -- FBLKFB-091319 9/13/2019 Field Blank 320-54328-1320-54328-4 <4 <5 <2<2 <2 <2 <10<20 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <20 <20 <2 <4 <20 <2.1 <2 <2 <2.1 <20 <2 <2 <20 <2 <2<2 <2 <2 <2<2 <2 <2 <2<2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 42 of 42 October 2019 TABLE 9-4 OFFSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Black Creek Aquifer Black Creek Aquifer Surficial Aquifer Black Creek Aquifer Location ID BLADEN-1D BLADEN-1D BLADEN-2S BLADEN-2D Field Sample ID BLADEN-1D-082719 DUP-1-082719 BLADEN-2S-082719 BLADEN-2D-082719 Sample Date 8/27/2019 8/27/2019 8/27/2019 8/27/2019 QA/QC --Field Duplicate ---- Sample Delivery Group 280-127778-1 280-127778-1 280-127778-1 280-127778-1 Lab Sample ID 280-127778-1 280-127778-2 280-127778-3 280-127778-4 Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod)180 190 4.6 11 PFMOAA 33 30 11 <5 PFO2HxA 81 80 19 J 6.3 PFO3OA 6.2 6.2 1.8 J 0.96 J PFO4DA <2 <2 1.5 J <2 PFO5DA <2 <2 0.53 <2 PMPA 330 330 68 77 J PEPA 110 110 6.8 J 12 J PFESA-BP1 <2 <2 <2 <2 PFESA-BP2 0.48 J 0.48 J 14 3.9 Byproduct 4 13 J 11 J <2 <2 Byproduct 5 <2 <2 <2 <2 Byproduct 6 <2 <2 <2 <2 NVHOS 2.2 1.9 J 1.5 J <2 EVE Acid <2 <2 <2 <2 Hydro-EVE Acid <2 0.31 J 0.36 <2 R-EVE 6.2 5.7 <2 <2 PES <2 <2 <2 <2 PFECA B <2 <2 <2 <2 PFECA-G <2 <2 <2 <2 Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate <1.7 <1.7 <1.7 <1.7 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS)<17 <17 <17 <17 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS)<17 <17 <17 <17 6:2 Fluorotelomer sulfonate <17 <17 <17 <17 ADONA <1.7 <1.7 <1.8 <1.8 F-53B Major <1.7 <1.7 <1.7 <1.7 F-53B Minor <1.7 <1.7 <1.7 <1.7 NaDONA <1.7 <1.7 <1.8 <1.8 N-ethyl perfluorooctane sulfonamidoacetic acid <17 <17 <17 <17 N-methyl perfluorooctane sulfonamidoacetic acid <17 <17 <17 <17 Perfluorobutane Sulfonic Acid 0.43 J 0.39 J 1.3 J 1.5 J Perfluorobutanoic Acid 3.6 3.6 3.4 2.1 J Perfluorodecane Sulfonic Acid <1.7 <1.7 <1.7 <1.7 Perfluorodecanoic Acid <1.7 <1.7 <1.7 <1.7 Perfluorododecane sulfonic acid (PFDoS)<1.7 <1.7 <1.7 <1.7 Perfluorododecanoic Acid <1.7 <1.7 <1.7 <1.7 Perfluoroheptane sulfonic acid (PFHpS)<1.7 <1.7 0.26 J <1.7 Perfluoroheptanoic Acid 0.27 J 0.26 J 0.43 J 0.22 J Perfluorohexadecanoic acid (PFHxDA)<1.7 <1.7 <1.7 <1.7 Perfluorohexane Sulfonic Acid 0.33 B 0.32 B 1.1 B 0.52 B Perfluorohexanoic Acid 1.1 J 1.1 J 0.62 J <1.7 Perfluorononanesulfonic acid <1.7 <1.7 <1.7 <1.7 Perfluorononanoic Acid <1.7 <1.7 <1.7 <1.7 Perfluorooctadecanoic acid <1.7 <1.7 <1.7 <1.7 Perfluorooctane Sulfonamide 0.48 J <1.7 0.48 J <1.7 Perfluoropentane sulfonic acid (PFPeS) <1.7 <1.7 <1.7 <1.7 Perfluoropentanoic Acid 3.9 3.8 0.98 J 0.46 J Perfluorotetradecanoic Acid 0.36 B <1.7 0.24 B <1.7 Perfluorotridecanoic Acid <1.7 <1.7 <1.7 <1.7 Perfluoroundecanoic Acid <1.7 <1.7 <1.7 <1.7 PFOA <1.7 <1.7 1.3 J <1.7 PFOS <1.7 <1.7 3.7 0.6 J 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol <1.7 <1.7 <1.7 <1.7 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol <3.3 <3.3 <3.4 <3.4 N-ethylperfluoro-1-octanesulfonamide <1.7 <1.7 <1.7 <1.7 N-methyl perfluoro-1-octanesulfonamide <1.7 <1.7 <1.7 <1.7 Notes: Bold - Analyte detected above associated reporting limit B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. TR0795 Page 1 of 6 October 2019 TABLE 9-4 OFFSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location ID Field Sample ID Sample Date QA/QC Sample Delivery Group Lab Sample ID Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: Bold - Analyte detected above associated reporting limit B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. Surficial Aquifer Black Creek Aquifer Surficial Aquifer Black Creek Aquifer BLADEN-3S BLADEN-3D BLADEN-4S BLADEN-4D BLADEN-3S-082819 BLADEN-3D-082819 BLADEN-4S-082819 BLADEN-4D-082819 8/28/2019 8/28/2019 8/28/2019 8/28/2019 -------- 280-127778-1 280-127778-1 280-127778-1 280-127778-1 280-127778-5 280-127778-6 280-127778-10 280-127778-7 12 2.2 J <3.7 <3.6 15 <5 <5 <5 UJ 31 1.3 J 3 <2 3.8 <2 <2 <2 3.1 <2 <2 <2 0.98 J <2 <2 <2 UJ 39 14 12 9.2 J 5.6 J 2.1 J <20 <20 <2 <2 <2 <2 3.6 0.63 J 1.5 J <2 1.9 J <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 0.46 J <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <1.7 <1.8 <1.8 <1.8 <17 <18 <18 <18 <17 <18 <18 <18 <17 <18 <18 <18 <1.8 <1.9 <1.9 <1.9 <1.7 <1.8 <1.8 <1.7 <1.7 <1.8 <1.8 <1.7 <1.8 <1.9 <1.9 <1.9 <17 <18 <18 <18 <17 <18 <18 <18 0.26 J 0.33 J 0.5 J <1.8 2.1 <1.8 1.1 J <1.8 <1.7 <1.8 <1.8 <1.8 <1.7 <1.8 <1.8 <1.8 <1.7 <1.8 <1.8 <1.8 <1.7 <1.8 <1.8 <1.8 <1.7 <1.8 <1.8 <1.8 0.81 J <1.8 0.48 J <1.8 <1.7 <1.8 <1.8 <1.8 0.27 B 0.26 B 0.76 B 0.26 B 0.65 J <1.8 0.75 J <1.8 <1.7 <1.8 <1.8 <1.8 0.38 J <1.8 <1.8 <1.8 <1.7 <1.8 <1.8 <1.8 0.33 J <1.8 <1.8 <0.57 <1.7 <1.8 <1.8 <1.8 0.93 J <1.8 0.8 J <1.8 <1.7 <1.8 <1.8 <1.8 <1.7 <1.8 <1.8 <1.8 <1.7 <1.8 <1.8 <1.8 2 <1.8 1.5 J <1.8 2.2 <1.8 4.8 <1.8 <1.7 <1.8 <1.8 <1.7 <3.4 <3.5 <3.7 <3.4 <1.7 <1.8 <1.8 <1.7 <1.7 <1.8 <1.8 <1.7 TR0795 Page 2 of 6 October 2019 TABLE 9-4 OFFSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location ID Field Sample ID Sample Date QA/QC Sample Delivery Group Lab Sample ID Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: Bold - Analyte detected above associated reporting limit B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. Surficial Aquifer Black Creek Aquifer Surficial Aquifer Black Creek Aquifer CUMBERLAND-1S CUMBERLAND-1D CUMBERLAND-2S CUMBERLAND-2D CUMBER-1S-09162019 CUMBER-1D-09162019 Cumber-2S-09162019 Cumber-2D-09162019 9/16/2019 9/16/2019 9/16/2019 9/16/2019 -------- 320-54439-1 320-54439-1 320-54378-1 320-54378-1 320-54439-1 320-54439-2 320-54378-7 320-54378-8 <3.7 <3.8 <4 UJ <4 UJ <5 <5 UJ 22 <5 11 <2 4.3 <2 1.9 J <2 <2 <2 0.81 J <2 <2 <2 <2 UJ <2 UJ <2 <2 13 <10 20 10 <20 <20 <20 <20 <2 <2 <2 <2 1.8 J <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <1.9 <1.9 <2 <2 <19 <19 <20 <20 <19 <19 <20 <470 <19 <19 <20 <20 <2 <2 <2.1 <2.1 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <2 <2 <2.1 <2.1 <19 <19 <20 <20 <19 <19 <20 <20 35 <1.9 <2 <2 7 0.52 J 2.9 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 0.32 J <1.9 <2 <2 4.4 0.47 J 2.9 2.7 <1.9 <1.9 <2 <2 2.8 0.6 B 2.1 2.9 6.4 0.87 J 3.8 4.3 <1.9 <1.9 <2 <2 0.93 J <1.9 <2 <2 <1.9 <1.9 <2 <2 1 B 0.88 B <2 <2 0.35 J <1.9 <2 <2 6.5 <1.9 3.9 3.8 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 13 <1.9 5 2.1 15 0.61 J 4.3 4.4 <1.9 <1.9 <2 <2 <3.7 <3.8 <4 <4 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 TR0795 Page 3 of 6 October 2019 TABLE 9-4 OFFSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location ID Field Sample ID Sample Date QA/QC Sample Delivery Group Lab Sample ID Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: Bold - Analyte detected above associated reporting limit B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. Surficial Aquifer Black Creek Aquifer Surficial Aquifer Black Creek Aquifer CUMBERLAND-3S CUMBERLAND-3D CUMBERLAND-4S CUMBERLAND-4D Cumber-3S-09162019 Cumber-3D-09162019 Cumber-4S-09162019 Cumber-4D-09162019 9/16/2019 9/16/2019 9/16/2019 9/16/2019 -------- 320-54378-1 320-54378-1 320-54378-1 320-54378-1 320-54378-5 320-54378-6 320-54378-2 320-54378-1 10 J <4 UJ 110 J <4 UJ 30 17 J 39 <5 63 <2 110 <2 9.8 J <2 18 <2 8.7 <2 5.1 <2 7.6 <2 <2 <2 44 12 140 12 <20 <20 42 <20 <2 <2 <2 <2 4 <2 4.8 <2 20 J <2 74 J 2.7 J <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 2.1 <2 <2 <2 <2 <2 <2 <2 <2 <2 11 J <2 18 J <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <18 <2 <2 <20 <190 <20 <20 <470 <480 <20 <20 <20 <190 <20 29 J <2.1 <2.1 <2.1 <2.1 <2 <2 <2 <2 <2 <2 <2 <2 <2.1 <2.1 <2.1 <2.1 <20 <20 <20 <20 <20 <20 <20 <20 <2 <2 <2 <2 5.6 <2 8.6 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 5 2.2 2.9 2.5 <2 <2 <2 UJ <2 2.9 <2 <2 <2 5.3 3.4 3.1 3.4 <2 <2 <2 <2 2.2 <2 <2 <2 <2 <2 <2 UJ <2 <2 <2 <2 <2 <2 <2 <2 <2 6.2 2.9 5.2 3.4 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 10 <2 6 <2 16 2.6 5.9 2.7 <2 <2 <2 <2 <4 <4 <4 <4 <2 <2 <2 <2 <2 <2 <2 <2 TR0795 Page 4 of 6 October 2019 TABLE 9-4 OFFSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location ID Field Sample ID Sample Date QA/QC Sample Delivery Group Lab Sample ID Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: Bold - Analyte detected above associated reporting limit B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. Surficial Aquifer Black Creek Aquifer Surficial Aquifer Black Creek Aquifer CUMBERLAND-5S CUMBERLAND-5D ROBESON-1S ROBESON-1D Cumber-5S-09162019 Cumber-5D-09162019 ROBESON-1S-091219 ROBESON-1D-091219 9/16/2019 9/16/2019 9/12/2019 9/12/2019 -------- 320-54378-1 320-54378-1 280-128413-1 280-128413-1 320-54378-4 320-54378-3 280-128413-1 280-128413-2 <4 UJ <4 UJ <4 UJ 6 J 22 <5 6.3 <5 <2 <2 6.2 2.8 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 UJ <2 UJ 14 <10 34 35 <20 <20 <20 <20 <2 <2 <2 <2 <2 <2 7.1 3 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <20 <20 <20 <20 <480 <20 <20 <20 <20 <20 <20 <20 <2.1 <2.1 <2.1 <2.1 <2 <2 <2 <2 <2 <2 <2 <2 <2.1 <2.1 <2.1 <2.1 <20 <20 <20 <20 <20 <20 <20 <20 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 2.3 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 <2 3.5 <2 <2 <2 <2 <2 <4 <4 <4 <4 <2 <2 UJ <2 <2 <2 <2 <2 <2 TR0795 Page 5 of 6 October 2019 TABLE 9-4 OFFSITE GROUNDWATER ANALYTICAL RESULTS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Aquifer Location ID Field Sample ID Sample Date QA/QC Sample Delivery Group Lab Sample ID Table 3+ Lab SOP (ng/L) HFPO-DA (EPA Method 537 Mod) PFMOAA PFO2HxA PFO3OA PFO4DA PFO5DA PMPA PEPA PFESA-BP1 PFESA-BP2 Byproduct 4 Byproduct 5 Byproduct 6 NVHOS EVE Acid Hydro-EVE Acid R-EVE PES PFECA B PFECA-G Other PFAS (ng/L) 10:2 Fluorotelomer sulfonate 1H,1H,2H,2H-perfluorodecanesulfonate (8:2 FTS) 1H,1H,2H,2H-perfluorohexanesulfonate (4:2 FTS) 6:2 Fluorotelomer sulfonate ADONA F-53B Major F-53B Minor NaDONA N-ethyl perfluorooctane sulfonamidoacetic acid N-methyl perfluorooctane sulfonamidoacetic acid Perfluorobutane Sulfonic Acid Perfluorobutanoic Acid Perfluorodecane Sulfonic Acid Perfluorodecanoic Acid Perfluorododecane sulfonic acid (PFDoS) Perfluorododecanoic Acid Perfluoroheptane sulfonic acid (PFHpS) Perfluoroheptanoic Acid Perfluorohexadecanoic acid (PFHxDA) Perfluorohexane Sulfonic Acid Perfluorohexanoic Acid Perfluorononanesulfonic acid Perfluorononanoic Acid Perfluorooctadecanoic acid Perfluorooctane Sulfonamide Perfluoropentane sulfonic acid (PFPeS) Perfluoropentanoic Acid Perfluorotetradecanoic Acid Perfluorotridecanoic Acid Perfluoroundecanoic Acid PFOA PFOS 2-(N-ethyl perfluoro-1-octanesulfonamido)-ethanol 2-(N-methyl perfluoro-1-octanesulfonamido)-ethanol N-ethylperfluoro-1-octanesulfonamide N-methyl perfluoro-1-octanesulfonamide Notes: Bold - Analyte detected above associated reporting limit B - analyte detected in an associated blank EPA - Environmental Protection Agency J - Analyte detected. Reported value may not be accurate or precise ng/L - nanograms per liter QA/QC - Quality assurance/ quality control SOP - standard operating procedure UJ – Analyte not detected. Reporting limit may not be accurate or precise. < - Analyte not detected above associated reporting limit. -------- EB EQBLK EQBLK FBLK EquipBlank1-20190912 BLADEN EQBLK-1 BLADEN EQBLK-2 FIELDBLK-20190913 9/12/2019 8/28/2019 8/28/2019 9/13/2019 Equipment Blank Equipment Blank Equipment Blank Field Blank 200-50537-2 280-127778-1 280-127778-1 200-50567-2 200-50537-3 280-127778-8 280-127778-9 200-50567-3 <4 <3.8 <3.8 9.2 <5 <2.1 <2.1 <5 <2 <0.8 <0.8 <2 <2 <0.6 <0.6 <2 <2 <0.8 <0.8 <2 <2 <0.3 <0.3 <2 <10 <5.7 <5.7 <10 <20 <0.5 <0.5 <20 <2 <0.3 <0.3 <2 <2 <0.3 <0.3 <2 <2 <1.6 <1.6 <2 <2 <0.6 <0.6 <2 <2 <0.2 <0.2 <2 <2 <0.5 <0.5 <2 <2 <0.2 <0.2 <2 <2 <0.3 <0.3 <2 <2 <0.7 <0.7 <2 <2 <0.5 <0.5 <2 <2 <0.6 <0.6 <2 <2 <0.4 <0.4 <2 <2 <1.9 <1.9 <2 <20 <19 <19 <20 <20 <19 <19 <20 <20 <19 <19 <20 <2.1 <2 <2 <2.1 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2.1 <2 <2 <2.1 <20 <19 <19 <20 <20 <19 <19 <20 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 0.34 J 0.26 J <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 0.3 J <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 <4 <3.8 <3.8 <4 <2 <1.9 <1.9 <2 <2 <1.9 <1.9 <2 TR0795 Page 6 of 6 October 2019 TABLE 9-5 SELECT MONITORING WELL LOCATIONS SHOWING PROPSOED PFAS SIGNATURES Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Proposed PFAS Signature Area Aquifer Location ID HFPO-DAPFMOAAPFO2HxAPFO3OAPFO4DAPFO5DAPMPAPEPAPFESA-BP1PFESA-BP2Byproduct 4Byproduct 5Byproduct 6NVHOSEVE AcidHydro-EVE AcidR-EVETotal Table 3+ (ng/L) Aerial - Predominant PMPA Offsite Black Creek Aquifer BLADEN-2D 10% 0% 6% 1% 0% 0% 69% 11% 0% 4% 0% 0% 0% 0% 0% 0% 0%110 Aerial - Predominant PMPA Offsite Surficial Aquifer BLADEN-2S 4% 9% 15% 1% 1% 0% 53% 5% 0% 11% 0% 0% 0% 1% 0% 0% 0%130 Aerial - Predominant PMPA Onsite Black Creek Aquifer PW-12 0% 0% 0% 0% 0% 0% 100% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0%15 Aerial - Mixture of PFAS Offsite Black Creek Aquifer BLADEN-1D 24% 4% 11% 1% 0% 0% 43% 14% 0% 0% 2% 0% 0% 0% 0% 0% 1%760 Aerial - Mixture of PFAS Offsite Surficial Aquifer BLADEN-3S 10% 13% 27% 3% 3% 1% 33% 5% 0% 3% 2% 0% 0% 0% 0% 0% 0%120 Aerial - Mixture of PFAS Offsite Surficial Aquifer CUMBERLAND-3S 5% 14% 30% 5% 4% 4% 21% 0% 0% 2% 10% 0% 0% 0% 0% 0% 5%210 Aerial - Mixture of PFAS Offsite Surficial Aquifer CUMBERLAND-4S 20% 7% 20% 3% 1% 0% 25% 7% 0% 1% 13% 0% 0% 0% 0% 0% 3%560 Aerial - Mixture of PFAS Onsite Perched Zone FTA-02 24% 12% 10% 2% 2% 3% 7% 3% 1% 4% 2% 1% 0% 0% 27% 1% 1%90,000 Aerial - Mixture of PFAS Onsite Surficial Aquifer MW-18D 53% 4% 7% 0% 0% 0% 28% 7% 0% 0% 0% 0% 0% 0% 0% 0% 0%1,500 Aerial - Mixture of PFAS Onsite Perched Zone NAF-04 6% 6% 10% 3% 1% 1% 2% 1% 25% 3% 2% 28% 0% 1% 8% 4% 1%4,300,000 Aerial - Mixture of PFAS Onsite Perched Zone NAF-12 2% 4% 7% 3% 2% 1% 6% 1% 12% 4% 4% 20% 0% 10% 13% 7% 2%5,400,000 Aerial - Mixture of PFAS Onsite Surficial Aquifer PW-03 20% 1% 5% 1% 0% 0% 33% 19% 0% 0% 3% 12% 0% 2% 0% 1% 3%400,000 Combined Process Water - Predominant PFMOAA Onsite Black Creek Aquifer LTW-05 7% 65% 18% 6% 1% 0% 0% 0% 0% 0% 0% 1% 0% 1% 0% 0% 1%370,000 Combined Process Water - Predominant PFMOAA Onsite Surficial Aquifer MW-14D 4% 71% 14% 3% 1% 0% 3% 1% 0% 0% 0% 1% 0% 1% 0% 0% 0%250,000 Combined Process Water - Predominant PFMOAA Onsite Perched Zone MW-24 2% 77% 14% 3% 1% 0% 1% 0% 0% 0% 0% 1% 0% 1% 0% 0% 0%940,000 Combined Process Water - Predominant PFMOAA Onsite Perched Zone MW-27 3% 68% 18% 5% 1% 0% 2% 1% 0% 0% 0% 0% 0% 1% 0% 0% 0%350,000 Combined Process Water - Predominant PFMOAA Onsite Perched Zone NAF-02 3% 62% 17% 5% 2% 1% 2% 1% 0% 0% 0% 5% 0% 1% 0% 0% 0%4,700,000 Combined Process Water - Predominant PFMOAA Onsite Surficial Aquifer PIW-9S 3% 69% 16% 4% 1% 0% 3% 1% 0% 0% 0% 0% 0% 1% 0% 0% 0%220,000 Combined Process Water - Predominant PFMOAA Onsite Black Creek Aquifer PW-15R 2% 67% 13% 3% 0% 0% 7% 2% 1% 0% 0% 4% 0% 1% 0% 0% 0%490,000 Combined Process Water - Predominant PFMOAA Onsite Surficial Aquifer SMW-08B 2% 74% 13% 3% 1% 0% 2% 1% 0% 0% 0% 1% 0% 1% 0% 0% 0%350,000 Combined Process Water - Mixture of PFAS Onsite Surficial Aquifer MW-15DRR 4% 38% 8% 1% 0% 0% 4% 1% 11% 1% 1% 26% 0% 0% 1% 0% 0%81,000 Combined Process Water - Mixture of PFAS Onsite Black Creek Aquifer PIW-10DR 17% 40% 17% 5% 1% 0% 8% 3% 0% 0% 1% 6% 0% 0% 0% 1% 1%110,000 Combined Process Water - Mixture of PFAS Onsite Perched Zone PZ-11 19% 27% 18% 3% 2% 3% 13% 4% 2% 1% 1% 5% 0% 1% 0% 0% 0%26,000 Notes: ng/L - nanograms per liter Table 3+ compounds reported as percentage of Total Table 3+ concentrations. PES, PFECA B, and PFECA-G had no detections and are therefore omitted from this table. TR0795 Page 1 of 1 October 2019 TABLE 10-1 COMPARISON OF PROPOSED PFAS SIGNATURES TO SELECTED LOCATIONS Chemours Fayetteville Works, North Carolina Geosyntec Consultants of NC P.C. Location ID Sample Date Proposed PFAS Signature HFPO-DAPFMOAAPFO2HxAPFO3OAPFO4DAPFO5DAPMPAPEPAPFESA-BP1PFESA-BP2Byproduct 4Byproduct 5Byproduct 6NVHOSEVE AcidHydro-EVE AcidR-EVETotal Table 3+ (ng/L) OLDOF-1 2/1/2019 Combined Process Water - Predominant PFMOAA 4% 72% 13% 4% 1% 1% 4% 1% 0% 0% 0% 1% 0% 1% 0% 0% 0%130,000 OLDOF-2 2/1/2019 Combined Process Water - Predominant PFMOAA 4% 66% 13% 4% 1% 1% 4% 1% 0% 0% 0% 1% 0% 1% 0% 0% 0%140,000 OLDOF-2L 2/2/2019 Combined Process Water - Predominant PFMOAA 4% 69% 14% 4% 1% 1% 4% 1% 0% 0% 0% 1% 0% 1% 0% 0% 0%150,000 OLDOF-3 2/2/2019 Combined Process Water - Predominant PFMOAA 4% 68% 14% 3% 1% 0% 4% 1% 0% 0% 0% 1% 0% 1% 0% 0% 0%160,000 OLDOF-4 2/2/2019 Combined Process Water - Predominant PFMOAA 3% 70% 13% 4% 1% 1% 4% 1% 0% 0% 0% 1% 0% 1% 0% 0% 0%200,000 OLDOF-5 2/2/2019 Combined Process Water - Predominant PFMOAA 3% 69% 13% 4% 2% 1% 3% 1% 1% 0% 0% 1% 0% 1% 0% 0% 0%290,000 OLDOF-5K 2/2/2019 Combined Process Water - Predominant PFMOAA 16% 41% 14% 3% 3% 1% 12% 4% 0% 1% 1% 0% 0% 1% 0% 1% 1%39,000 OLDOF-2J* 2/2/2019 Aerial - Mixture of PFAS 14% 6% 15% 3% 0% 0% 43% 15% 0% 1% 2% 0% 0% 0% 0% 0% 1%8,700 SEEP-C-1 2/5/2019 Combined Process Water - Predominant PFMOAA 8% 58% 19% 6% 1% 0% 5% 2% 0% 0% 0% 1% 0% 1% 0% 1% 1%340,000 SEEP-C-1-E2 2/5/2019 Combined Process Water - Predominant PFMOAA 7% 63% 15% 4% 1% 0% 5% 2% 0% 0% 0% 1% 0% 1% 0% 0% 0%260,000 SEEP-D-1 5/30/2019 Combined Process Water - Predominant PFMOAA 11% 54% 17% 5% 1% 0% 5% 2% 0% 0% 1% 2% 0% 0% 0% 1% 1%170,000 SEEP-A-1 2/7/2019 Combined Process Water - Mixture of PFAS 4% 37% 18% 6% 4% 2% 11% 4% 2% 1% 1% 10% 0% 0% 0% 1% 1%230,000 SEEP-A-10 2/7/2019 Combined Process Water - Mixture of PFAS 12% 16% 12% 5% 4% 5% 10% 4% 9% 1% 1% 13% 0% 1% 5% 2% 1%530,000 SEEP-A-11 2/7/2019 Combined Process Water - Mixture of PFAS 10% 17% 12% 5% 4% 4% 9% 4% 10% 1% 1% 14% 0% 1% 4% 2% 1%540,000 SEEP-A-12 2/7/2019 Combined Process Water - Mixture of PFAS 17% 13% 25% 4% 4% 3% 18% 7% 0% 1% 2% 0% 0% 0% 0% 0% 1%120,000 SEEP-A-2 2/7/2019 Combined Process Water - Mixture of PFAS 11% 34% 17% 6% 3% 2% 10% 4% 2% 1% 1% 10% 0% 0% 0% 1% 1%240,000 SEEP-A-3 2/7/2019 Combined Process Water - Mixture of PFAS 6% 36% 17% 6% 4% 3% 10% 4% 2% 1% 1% 10% 0% 0% 0% 1% 1%220,000 SEEP-A-4 2/7/2019 Combined Process Water - Mixture of PFAS 11% 31% 18% 5% 3% 3% 18% 8% 0% 1% 1% 4% 0% 0% 0% 1% 0%160,000 SEEP-A-5 2/7/2019 Combined Process Water - Mixture of PFAS 10% 17% 16% 5% 4% 3% 23% 11% 1% 1% 1% 6% 0% 0% 0% 1% 1%180,000 SEEP-A-6 2/7/2019 Combined Process Water - Mixture of PFAS 13% 12% 14% 4% 4% 3% 27% 13% 1% 1% 1% 5% 0% 0% 0% 1% 1%140,000 SEEP-A-7 2/7/2019 Combined Process Water - Mixture of PFAS 13% 20% 16% 5% 4% 3% 21% 10% 1% 1% 1% 6% 0% 0% 0% 1% 1%220,000 SEEP-A-8 2/7/2019 Combined Process Water - Mixture of PFAS 9% 12% 14% 5% 5% 4% 27% 14% 1% 1% 1% 4% 0% 0% 0% 1% 1%140,000 SEEP-A-9 2/7/2019 Combined Process Water - Mixture of PFAS 11% 15% 12% 5% 4% 3% 10% 4% 8% 1% 2% 16% 0% 1% 4% 2% 1%510,000 SEEP-B-1 2/5/2019 Combined Process Water - Mixture of PFAS 7% 42% 12% 3% 1% 0% 12% 5% 1% 0% 1% 11% 0% 1% 2% 1% 1%350,000 SEEP-B-2 2/5/2019 Aerial - Mixture of PFAS 12% 3% 5% 1% 1% 0% 20% 10% 5% 1% 4% 25% 0% 2% 8% 2% 3%310,000 SEEP-B-3 2/6/2019 Aerial - Mixture of PFAS 11% 1% 4% 1% 1% 0% 19% 10% 6% 1% 4% 26% 0% 2% 9% 2% 3%380,000 SEEP-B-3-A1 2/6/2019 Aerial - Mixture of PFAS 13% 1% 4% 1% 1% 0% 17% 9% 7% 1% 3% 26% 0% 2% 10% 2% 3%460,000 SEEP-B-3-E4 2/6/2019 Aerial - Mixture of PFAS 22% 4% 13% 2% 3% 1% 36% 14% 0% 1% 2% 0% 0% 0% 0% 0% 1%45,000 SEEP-B-4 2/6/2019 Aerial - Mixture of PFAS 12% 1% 3% 1% 1% 0% 17% 9% 8% 1% 4% 26% 0% 2% 11% 2% 3%670,000 SEEP-B-4-A3 2/6/2019 Aerial - Mixture of PFAS 7% 1% 4% 1% 1% 1% 17% 8% 9% 1% 4% 22% 0% 1% 15% 2% 4%430,000 GBC-1 5/29/2019 Aerial - Mixture of PFAS 19% 0% 16% 3% 0% 0% 50% 12% 0% 1% 0% 0% 0% 0% 0% 0% 0%2,600 GBC-2 5/29/2019 Aerial - Mixture of PFAS 25% 0% 14% 3% 0% 0% 46% 11% 0% 1% 0% 0% 0% 0% 0% 0% 0%2,600 GBC-3 5/29/2019 Aerial - Mixture of PFAS 23% 0% 15% 2% 0% 0% 47% 10% 0% 1% 0% 0% 0% 0% 0% 0% 0%3,000 GBC-5 5/29/2019 Aerial - Mixture of PFAS 28% 5% 17% 3% 0% 0% 35% 11% 0% 1% 0% 0% 0% 0% 0% 0% 0%4,600 GBC-6 5/29/2019 Aerial - Mixture of PFAS 29% 0% 17% 3% 0% 0% 39% 11% 0% 1% 0% 0% 0% 0% 0% 0% 0%4,900 GBC-7 5/29/2019 Aerial - Mixture of PFAS 29% 0% 19% 3% 0% 1% 38% 10% 0% 1% 0% 0% 0% 0% 0% 0% 0%4,200 WC-1 5/30/2019 Combined Process Water - Mixture of PFAS 17% 29% 15% 3% 0% 1% 25% 5% 0% 0% 0% 5% 0% 0% 0% 0% 0%4,800 CFR-MILE-76 6/7/2019 Aerial - Mixture of PFAS 10% 0% 6% 0% 0% 0% 25% 0% 0% 0% 11% 32% 0% 10% 0% 0% 6%72 CFR-BLADEN 5/22/2019 Combined Process Water - Mixture of PFAS 10% 45% 14% 3% 1% 0% 11% 0% 0% 0% 3% 11% 0% 2% 0% 0% 1%290 CFR-KINGS 5/23/2019 Combined Process Water - Mixture of PFAS 12% 6% 21% 5% 2% 0% 21% 0% 0% 0% 14% 5% 0% 4% 0% 0% 7%140 Notes: ng/L - nanograms per liter Table 3+ compounds reported as percentage of Total Table 3+ concentrations. PES, PFECA B, and PFECA-G had no detections and are therefore omitted from this table. * - Sample was collected from seep water, not Old Outfall water. TR0795 Page 1 of 1 October 2019 TR0795 FIGURES ") ") ") Willis Creek Old Outfall 002Cape Fear RiverOutfall 002 W.O. Huske Dam Site River Water Intake NC Highway 87Seep A Seep B Seep C Seep D GBCTributary1GeorgiaBranchCreek Site Location Map Figure 2-1Raleigh 2,000 0 2,0001,000 Feet ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_SiteLocation.mxd; 10/31/2019October 2019 Legend ")Site Features Site Boundary Nearby Tributary Observed Seep (Natural Drainage) Site Drainage Network Notes:1. The outline of the Cape Fear River shown on this figure is approximate (River outline based on compilation of open data sources fromArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).2. Basemap sources: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GISUser Community Chemours Fayetteville Works, North Carolina Areas at Site Chemours Monomers IXM Former DuPont PMDF Area Wastewater Treatment Plant Kuraray SentryGlas®Leased Area Kuraray Trosifol®Leased Area DuPont Polyvinyl FluorideLeased Area Chemours PolymerProcessing Aid Area Power - Filtered andDemineralized WaterProductionKuraray Laboratory Regional Topographic Map Chemours Fayetteville Works, North Carolina Figure 2-2Raleigh 2 0 21 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_TopographicMap_6mile.mxd Last Revised: 10/30/2019 Author: TIpOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. For topographic map symbols, please refer to this document: https://pubs.usgs.gov/gip/TopographicMapSymbols/topomapsymbols.pdf 2. Basemap source: © 2013 National Geographic Society, i-cubed Legend Site Boundary ") Old Outfall 002 Site Drainage NetworkTo Outfall 002 W.O. Huske Dam Willis Creek Georgia Branch Creek Outfall 002Ca p e Fe a r Ri v e r Site Topographic Map Chemours Fayetteville Works, North Carolina Figure 2-3Raleigh 2,000 0 2,0001,000 Feet Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_SiteTopgraphicMap.mxd; SSomnarain; 10/30/2019October 2019 Notes:Basemap sources: Esri, Garmin, USGS, NPS (World Terrain Reference); Esri, USGS, NGA, NASA, CGIAR, N Robinson, NCEAS, NLS, OS, NMA, Geodatastyrelsen, Rijkswaterstaat, GSA, Geoland, FEMA, Intermap and the GIS user community (World Hillshade) Legend ")Site Features Site Boundary County Boundary Observed Seep (Natural Drainage) Nearby Tributary Site Drainage Network ³ ^_Kings Bluff Intake Canal ChemoursFayettevilleWorks Start ofCape FearRiver Wilmington Fayetteville Raleigh Bladen BluffsIntake WO HuskeLock and Dam Greensboro Virginia NorthCarolina SouthCarolina Cape Fear River Watershed and Downstream Drinking Water Intakes Chemours Fayetteville Works, North Carolina Figure 2-4Raleigh Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Cape Fear River Watershed and Downstream Intakes.mxd; SSomnarain; 10/30/2019October 2019 ³DeepRi ver H awRiver LittleRiver CapeFearRiver 20 0 2010 Miles Notes:Basemap Source: Esri, Garmin, USGS, NPS Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Legend ^_Chemours Fayetteville Works Upper Basin Middle Basin Lower Basin Figure 2-5 Wind Rose Measurements (January 2018- May 2019) Chemours Fayetteville Works, North Carolina Raleigh October 2019 Wind Rose for Rain Events Notes: mph - miles per hour 1. Wind measurements collected at the Site for the period from 1 January 2018 to 15 May 2019. 2. Concentric circles indicate the relative proportion of winds from a given direction and speed. 3. Wedges represent the direction the winds are coming from. 4. Color indicates wind speed. 5. 575 total hours (5%) of rain and 10,738 total hours (95%) without rain at the Site for the period from1 January 2018 to 15 May 2019. Wind Rose for Full Data Set Physiographic Provinces of North Carolina Chemours Fayetteville Works, North Carolina Figure 3-1Raleigh 40 0 4020 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Geology.mxd; TIp; 10/30/2019October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. Physiography layer obtained fromNorth Carolina Geological Survey (NCGS).2. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. Legend ^_Chemours Fayetteville Works Blue Ridge Piedmont Coastal Plain Fall Line Outfall 002 Historical AirSource and ProcessWater ReleaseLocation Historical Process Water Release LocationsOld Outfall 002Historical ProcessWater ConveyancePrior to 2012 Historical Path ofProcess WaterConveyance HistoricalAirSource Ca peFe ar Ri ver Old O utfa ll002 WillisCreek Historical Sources of PFAS Chemours Fayetteville Works, North Carolina Figure 4-1Raleigh 1,000 0 1,000500 Feet ³ October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Legend Site Conveyance Network Site Boundary Nearby Tributary Observed Seep (Natural Drainage) Terracotta Pipe Areas at Site Chemours Monomers IXM Area Chemours Polymer Processing Aid Area Wastewater Treatment Plant Area Historical Onsite Sources Air Water Notes:1. Historical air sources are manufacturing areas where PFAS wereemitted to air. The Site by December 31, 2019 will be operating aThermal Oxidizer that in combination with other control technologiesreduces facility wide air emissions of PFAS by 99%.2. Historical water sources are areas where process water wasreleased to soil and groundwater. Site infrastructure upgrades andoffsite disposal of process water has mitigated these sources. Basemap Sources: Esri, DigitalGlobe, GeoEye, EarthstarGeographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN,and the GIS User Community Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_HistoricalOnsiteSources.mxd; 10/31/2019 Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, © OpenStreetMap contributors, and the GIS User Community HFPO-DA Concentrations in Offsite Wells Chemours Fayetteville Works, North Carolina Figure 4-2ARaleigh 2 0 21 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Offsite HFPO-DA Concentrations with Offsite MW.mxd Last Revised: 10/31/2019 Author: TIpOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US N S W E 6 mi4 mi2 mi Notes:ng/L - nanograms per liter1. Black lines represent cardinal directions (N, E, S, W)2. Basemap sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, © OpenStreetMap contributors, and the GIS User Community Legend HFPO-DA Concentrations (ng/L) Dry Non-detect < 10 10 - 70 70 - 140 140 - 1,400 > 1,400 Offsite Monitoring Well !(Offsite Private Well Site Boundary ") ") ") ") ") ") ") ") ") ") ") <3.7 CUMBERLAND-1S <3.8 CUMBERLAND-1D 10 J CUMBERLAND-3S <4 UJCUMBERLAND-3D 110 J CUMBERLAND-4S <4 UJ CUMBERLAND-4D 2.2 JBLADEN-3D 12 BLADEN-3S DRY BLADEN-1S 190 BLADEN-1D 6 J ROBESON-1D <4 UJ ROBESON-1S <3.7 BLADEN-4S <3.6 BLADEN-4D <4 UJ CUMBERLAND-5S <4 UJ CUMBERLAND-5D <4 UJ CUMBERLAND-2S <4 UJCUMBERLAND-2D BLADEN-2S 4.6 11 BLADEN-2D Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan,METI, Esri China (Hong Kong), (c) OpenStreetMap contributors, and the GIS User Community HFPO-DA Concentrations in Offsite Groundwater Monitoring Wells Chemours Fayetteville Works, North Carolina Figure 4-2B Legend Raleigh 2 0 21 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Offsite MW HFPO-DA.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US N S W E 6 mi4 mi2 mi Notes:ng/L - nanograms per liter< - Analyte not detected above associated reporting limit.J - Analyte detected. Reported value may not be accurate or precise.UJ - Analyte not detected. Reporting limit may not be accurate or precise.1. Black lines represent cardinal directions (N, E, S, W)2. The locations of Cumberland and Robeson well pairs are approximate.3. Due to the scale of the map, pairs of wells that are in close proximity have been offset for visibility. Therefore, the placement of these wells on this map do not reflecttheir true geographic coordinates.4. Basemap sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan,METI, Esri China (Hong Kong), swisstopo, © OpenStreetMap contributors, and the GIS User Community HFPO-DA Concentrations (ng/L) < 10 10 - 70 70 - 140 140 - 1,400 Site Boundary Dry Non-detect ") ")") ") ")") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ")") ") ") ") ") ") ") ") ")") ") ")") ") ") ")") ") ") ") ") ")")") ") ") ")") ")") ") ")") ")")") ") ") ")")")") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")")") ") ")") ") ")") ") ")") ") ")") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ") ") ") ") ")")")")")") ") ") ") ") ") ") ")") ") ") ")")") ")") ") ") ") ") ") ") ")") ") ")") ") ") ") ")") ") ") ") ") ") ") ") ") ") ")") ")")")") ") ") ") ")") ") ") ") ")") ") ") ") ") ") ") ") ")") ")") ") ") ") ")")")") ") ") ") ") ")") ")") ") ") ") ")") ") ") ") ") ") ") ") ") ") ")") ") ") ") ")") ") ") ") ")") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ")")")") ")") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ") ") ")") ")") ")") ") ") ") ") ") ")")") ") ") ") ") ") ") ")")") ") ") ") ") ") ") ") ") ")") ") ")") ") ") ") ")")")") ")")") ") ")")")") ")")")") ")") ") ") ") ")")")")")")")")") ") ") ") ") ") ") ") ") ") ")")") ") ") ")") ") ") ") ") ")")")")")") ") ")")")") ") ") ")") ") ") ") ")")") ") ")") ") ") ") ") ") ")") ")")")")")")") ") ") ") ")") ") ") ")")")")")") ") ")")")")")") ")")") ") ") ") ") ") ") ")") ") ") ") ") ") ") ") ") ")") ") ") ") ") ")") ") ") ") ") ")") ")") ") ") ")") ") ") ") ") ")") ") ")")") ") ")") ")")") ") ")")")")")")")")")")")")") ")") ") ")") ") ")") ") ")") ") ")")") ") ") ")") ") ") ") ") ")") ") ") ")") ") ") ") ") ") ")")") ") ") ")")")") ") ")")") ") ") ") ") ")") ") ")")") ") ") ") ") ") ") ") ")") ") ") ")")")") ") ")")")") ") ") ")")") ") ") ") ")")") ") ") ") ")")") ") ")") ") ") ")") ") ")") ")") ")")") ") ")")")") ") ") ") ") ") ")") ") ")") ")") ") ") ") ")")")")")") ") ") ") ") ")") ") ")") ") ") ") ")")")") ") ") ") ") ") ")") ")") ")") ") ") ")") ") ") ") ") ") ")")")") ") ") ") ")")")")")")") ")") ") ") ") ") ") ") ") ") ") ") ") ")") ") ") ")") ") ") ")") ") ") ") ") ") ") ")") ")") ")")") ") ")") ")") ")")") ") ")")") ") ")")")") ") ")")")")")") ") ")") ") ")")") ") ") ")")")")") ") ") ") ") ") ")") ") ") ")") ") ") ") ") ") ") ") ") ") ") ") ") ")")")")")")")")") ") ")") ") ") ")") ") ") ")") ")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")") ") ")") ") ") ") ")") ")") ") ") ") ") ") ")")") ") ") ") ") ") ")") ") ")")")") ") ") ")")")") ") ") ")") ") ") ") ") ") ") ")")")") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ")")") ") ")") ") ") ") ") ") ") ") ") ")") ") ")")") ")")")") ") ")") ") ") ") ") ")") ") ")")") !( !( !( !( !( !( !( !( !( !( !(!( !( !( !( !( !( !( !( !( !(!( !( !( !( !(!( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !( !(!( !(!( !( !( !( !( !( !( !(!( !( !( Robeso n C o u n t yRobeso n C o u ntyBladen C o unty Cumberlan d C o u nt yCumberland County Bladen County Identified Well Receptor Locations Chemours Fayetteville Works, North Carolina Figure 5-1 Legend Raleigh 2 0 21 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_WellReceptor_PublicAndPrivate.mxd Last Revised: 10/30/2019 October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. Delineation of offsite private wells containing PFAS listed in Attachment C of the Consent Order is on-going. Additional private wells areexpected to be identified.2. Locations from public wells were sourced from the North Carolina Corporate Geographic Database. Earlier versions of this dataset mayexist. Retrieved from NC OneMap on September 24, 2019.3. Basemap Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, KadasterNL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, © OpenStreetMap contributors, and the GIS UserCommunity. ")Presently Identified Private Well !(Public Community Well Cape Fear River Site Boundary County Boundary Existing water lines Bladen County (2017 data) Robeson County (2018 data) Cumberland County (2018 data) !( !( !( Robeso n C o u n t yRobeso n C o u ntyBladen C o unty Cumberlan d C o u nt yCumberland County Bladen County Wellhead Protection Areas Chemours Fayetteville Works, North Carolina Figure 5-2 Legend Raleigh 2 0 21 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_WellheadProtectionAreas.mxd Last Revised: 10/30/2019 October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. The source of the Public Well layer is the North Carolina Corporate Geographic Database. Earlier versions of this dataset mayexist. Retrieved from NC OneMap on September 24, 2019.2. Wellhead Protection Areas last updated on 10/27/2016. The data was downloaded from ArcGIS Online, and was provided byNorth Carolina Department of Environmental Quality.3. Basemap Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN,Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, © OpenStreetMap contributors, and the GISUser Community. !(Public Well within Wellhead ProtectionArea; PWS ID 0378030 Cape Fear River Site Boundary County Boundary Wellhead Protection Area Surface Water Bodies in Region Around Site Chemours Fayetteville Works, North Carolina Figure 5-3 Legend Raleigh 2 0 21 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_SurfaceWaterBodies.mxd Last Revised: 10/30/2019 October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Lake/Pond Wetland Stream/River Site Boundary CapeFearRiverNotes: 1. Surface water layers obtained from National Hydrography Dataset - USGS (www.nhd.usgs.gov) 2. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. Cape Fear RiverIdentified Underground Structures Chemours Fayetteville Works, North Carolina Figure 5-4Raleigh ³ October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. Utilities map was last updated on September 24, 2019. Map is maintained by KBR Inc.2. Additional underground tanks will be added to this map when identified. Other updates may also be added to this map as additional information is provided.3. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).4. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 500 0 500250 Feet Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Underground Structures.mxd Last Revised: 10/30/2019 Author: jkasunic0.5 0 0.50.25 Miles ³ Legend Nearby Tributary Site Boundary Sewers Fire and Natural Gas Lines Electric Lines Water Lines Fiber Optic LinesData/PRJ/Projects/TR0795/Database and GIS/Illustrator/Onsite and Offsite Assessment Report/Subsurface on site/TR0795_Subsurface Structures on Site.ai 0.5 0 0.50.25 Miles ³ ")")")")")")")") ")")") ")") ")")")")") ") ") ")")")") ") ") ")")")") ")") ")")") ") ")") !( !( !( !( !(!( #* #*#* #* #*#*#* XW XW 1 2 3 4 5 6 7 8.1 8.2 9 10 11 12 13 14 15 16 17 18 19 20 2122 2324 25 26 27 28 29 30 31 32 333435 36 37 38 39 40 41 C a p e Fear Ri ver WillisCreek Seep A Seep B Seep C Seep D Old Outfall 002 Summary of Geologic Mapping Observations Chemours Fayetteville Works, North Carolina Figure 6-1Raleigh 1,000 0 1,000500 Feet ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Onsite Geologic Mapping.mxd; jkasunic; 10/31/2019October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. Station Locations correspond to locations where outcrop exposures were visible and safely accessible. Additional information provided in Table 6-1.2. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).3. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ LegendStation Locations XW Perched Zone #*Perched Clay !(Surficial ")Black Creek Confining Unit Inferred Lithologic ContactsObserved SeepNearby TributarySite Boundary Observed Exposed Lithologies Black Creek Confining Unit Surficial Perched Zone ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") ") !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A!'A !'A !'A C a p e Fear Ri ver PW-02 PW-04 LTW-01 LTW-03 LTW-04 PIW-1S PIW-6S LTW-02 LTW-05 PIW-1D PIW-2D PIW-3D PIW-5S PIW-4D PIW-10DRPIW-10S PIW-7D PIW-8D PIW-7S PIW-9S PIW-9D PW-10 PW-11 HP-1 HP-2 HP-3 HP-4 HP-5 HP-6HP-7 HP-8 HP-10 HP-12 HP-13 HP-14 HP-15 HP-17 HP-18 HP-19 HP-20 HP-21 HP-22 HP-24 HP-27 HP-28 HP-29 HP-30 HP-26 HP-25 HP-23 HP-9 HP-11 HP-32 HP-16 Seep A Seep B Seep C Seep D HPT and Well Locations Chemours Fayetteville Works, North Carolina Figure 6-2Raleigh 500 0 500250 Feet ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_HPT and Co-Located Well Locations.mxd; jkasunic; 10/31/2019October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:HPT - Hydraulic Profiling ToolEC - Electrical Conductivity1. Due to the scale of the map, pairs of wells that are in close proximity have been offset for visibility. Therefore, the placement of these wells on this map may not exactly reflect their true geographic coordinates.2. HP- locations were not surveyed and considered approximate.3. PIW and PW-well locations were sureyed by a licensed North Carolina Surveyor.4. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).5. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 1 0 10.5 Miles ³ LegendWell Type !'A Surficial Aquifer !'A Floodplain Deposits !'A Black Creek Aquifer WillisCreek ")HPT/EC Boring Observed Seep Nearby Tributary Site Boundary ") !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+!!+! !+! !+! !+! !+! !+! !+! !+! !'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A !'A!'A !'A!'A!'A!'A!'A!'A !'A !'A !'A !'A!'A !'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A !'A!'A!'A !'A !'A !'A !'A !'A !'A !'A!'A !'A !'A!'A !'A!'A!'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A!'A!'A!'A!'A!'A !'A !'A !'A !'A !'A!'A!'A !'A !'A!'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A!'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A CapeFearRi verDWR Dupont Station BCA-02 BCA-03R NAF-05B NAF-08B NAF-11B PZ-22 SMW-02BSMW-03B SMW-04B SMW-05P SMW-06BSMW-08B Bladen-1D PIW-10DR PIW-1D PIW-3D PIW-4D PIW-5S PIW-6S PIW-7D PIW-9DPIW-9S PW-02 PW-03 PW-05 PW-09 PW-10R PW-12 PW-14 PW-15R BCA-01 BCA-04 FTA-01FTA-02 FTA-03 INSITU-01 INSITU-02 LTW-01 LTW-02 LTW-03 LTW-04 LTW-05MW-11 MW-12S MW-13D MW-14D MW-15DRR MW-16DMW-17D MW-18D MW-19D MW-1S MW-20D MW-21D MW-22D MW-23 MW-24 MW-25 MW-26 MW-27 MW-28 MW-2S MW-30MW-7S MW-8S MW-9S NAF-01 NAF-02 NAF-03 NAF-04 NAF-05A NAF-06NAF-07 NAF-08A NAF-09NAF-10 NAF-11A NAF-12NAF-13 PZ-11 PZ-12 PZ-13PZ-14 PZ-15PZ-17 PZ-24 PZ-25 PZ-26PZ-27 PZ-28 SMW-01 SMW-02SMW-03 SMW-04A SMW-05 SMW-06 SMW-07 SMW-08 SMW-09 SMW-10 SMW-11 SMW-12 Bladen-1S PIW-10S PIW-1S PIW-2D PIW-7S PIW-8D PW-01 PW-04 PW-06 PW-07 PW-11 PW-13 PZ-19R PZ-20RPZ-21R PZ-35 Onsite Monitoring Well Network Chemours Fayetteville Works, North Carolina Figure 6-3Raleigh 1,000 0 1,000500 Feet ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteWellNetwork_NoHPT.mxd; jkasunic; 10/31/2019October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. Due to the scale of the map, pairs of wells that are in close proximity have been offset for visibility. Therefore, the placement of these wells on this map do not reflect their true geographic coordinates. 2. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).3. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. Legend !'A Perched Zone !'A Surficial Aquifer !'A Floodplain Deposits !'A Black Creek Aquifer ")DWR Dupont Station (V42V) Well Cluster !+!2019 Installed Wells Site Boundary !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A PZ-31 PZ-32 PZ-33 PZ-34 MW-31 MW-32 MW-33 MW-34 MW-35 MW-36 PZ-29 50 0 5025 Feet Pilot Test Area for PlumeStop™ 0.5 0 0.50.25 Miles ³ 117115 113 112 110108 104 102 97 3 93 95 96 98 105 106 116 79 81 83 85 8789 2 6 4 8 10 42 43 4139 46 48 50 51 54 57 60 63 67 70 72 76 73 74 12 14 16 18 20 22 24 2628 30 32 34 36 38 4445 53 56 59 62 65 68 71 101 103 107 109 118 119 49 99 114 7 13 15 17 19 21 23 25 27 29 31 33 3537 40 94 91 92 9088 86 84 82 80 78 77 75 69 6664 6158 55 52 47 111 1 5 9 11 100 Cape Fear River Survey -Temperature Measurement Locations Chemours Fayetteville Works, North Carolina Figure 6-4Raleigh 500 0 500250 Feet ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Temperature Measurement Locations.mxd; TIp; 10/30/2019October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. Temperature measurements were collected at locations west of the thalweg from August 5 to 9, 2019. 2. Location of thalweg was estimated in the field based on field measurements of maximum depth using a depth finder.3. All samples were located in the Cape Fear River. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).CapeFearRiver0.55 0 0.550.275 Miles ³ Legend Temperature MeasurementLocation Observed Seep Site Boundary 109 Temperature Gradient Results Chemours Fayetteville Works, North Carolina Figure 6-5Raleigh 400 0 400200 Feet ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Temperature Gradient Results.mxd; TIp; 10/30/2019October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. Temperature measurements were collected at locations west of the thalweg from August 5 to 9, 2019. 2. Location of thalweg was estimated in the field based on field measurements of maximum depth using a depth finder.3. All samples were located in the Cape Fear River. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).CapeFearRiver0.7 0 0.70.35 Miles Legend Temperature difference betweenporewater and 6 inches abovesediment 0 - 0.5 °C 0.5 - 6.0 °C Observed Seep Nearby Tributary Site Boundary Area of Observed TemperatureDifferential > 0.5 °C 47 40 49 45 44 38 50 48 46 41 43 42 39 69 75 77 78 80 71 74 76 72 79 73 70 94 99 98 96 97 95 107 106 105 104 108 114 118 116 113 115 117 Area 1 Area 2 Area 3 Area 4 Area 5 ³ 50 0 5025 Feet 80 0 8040 Feet 60 0 6030 Feet 60 0 6030 Feet 50 0 5025 Feet @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A Bladen-1DBladen-1S Bladen-2DBladen-2S Bladen-3D Bladen-3S Bladen-4DBladen-4S Cumberland-1DCumberland-1S Cumberland-2DCumberland-2S Cumberland-3DCumberland-3S Cumberland-4DCumberland-4S Cumberland-5DCumberland-5S Robeson-1DRobeson-1S Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan,METI, Esri China (Hong Kong), (c) OpenStreetMap contributors, and the GIS User Community Offsite Monitoring Wells Chemours Fayetteville Works, North Carolina Figure 6-6 Legend Raleigh 2 0 21 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Offsite_Wells.mxd Last Revised: 10/31/2019 Author: NBarNahoumOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US N S W E 6 mi4 mi2 mi Notes:1. Black lines represent cardinal directions (N, E, S, W)2. Due to the scale of the map, pairs of wells that are in close proximity have been offset for visibility. Therefore, the placement of these wells on this map do not reflect their true geographic coordinates.3. Basemap sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, © OpenStreetMap contributors, and the GIS User Community Well Type @A Black Creek Aquifer @A Surficial Aquifer Site Boundary !(!( !( !( !( !( !( !( !( !( !( Seep A Seep B Seep C Seep D Old Outfall 002CapeFearRiver Willis Creek W i l l i s C ree k GeorgiaBranchCreek Selected PFAS Concentrations in Onsite Soil Chemours Fayetteville Works, North Carolina Figure 7-1Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteAnalyteDistributionInSoil.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,500 0 1,500750 Feet Notes:All measurements are in ng/kg (nanograms per kilogram).< - Analyte not detected above associated reporting limit. J - Analyte detected. Reported value may not be accurate or precise.UJ - Analyte not detected. Reporting limit may not be accurate or precise.* Results from the field duplicate sample are not shown but results are identical to the parent sample.**Other analytes were detected, but not shown.1. Only unsaturated soil samples shown.2. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).3. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ Legend !(Soil Sample Location Observed Seep Nearby Tributary Site Boundary Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 8.5-9 <250 <1,000 UJ <1,000 UJ <1,000 UJ <1,000 UJ <1,000 UJ <1,000 UJ <1,000 UJ <1,000 UJ<25010-11 PW-09 Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 11-12 1,200 <1,000 <1,000 <1,000 <1,000 PW-01 12-13 850 <1,000 R <1,000 UJ <1,000 UJ <1,000 UJ Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 3.5-4 570 <1,000 <1,000 1,260 U <1,000 8-8.5 28,000 7,300 10,000 J 5,200 27,000 J PW-10** Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 14-15 1,500 <1,000 UJ <1,000 UJ <1,000 <1,000 PW-02 Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 6.5-7 1,700 <1,000 1,300 1,200 2,500 PW-03 Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 16-17 <250 <1,000 <1,000 <1,000 <1,000 PW-06 Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 14-15 <250 <1,000 <1,000 <1,000 <1,000 PW-07* Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 16-17 620 <1,000 <1,000 <1,000 <1,000 PW-11 Depth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA 25-26 <250 <1,000 <1,000 <1,000 <1,000 PW-13 /Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Onsite and Offsite Assessment Report/Soil Concentrations/TR0795_Figure7-1_Onsite PFAS Distribution in Soil.aiDepth(ft bgs)HFPO-DA PFMOAA PFO2HxA PFO5DA PMPA PW-05 12-13 850 <1,000 R <1,000 UJ <1,000 UJ <1,000 UJ Notes NGVD29 - National Geodetic Vertical Datum of 1929 NAVD88 – North American Vertical Datum of 1988 USGS - United States Geological Survey 1. Figure includes water level data from January 1, 2014 to September 10, 2019. 2. Water level data obtained for USGS gauges at Fayetteville (USGS 02104000), W.O.Huske (USGS 2105500) and Lock and Dam #1 (USGS 02105769) from National Water Information System (URL: https://waterdata.usgs.gov/nwis/inventory/?site_no=02105769, date accessed: 2019-09-24) 3. Measured water level datum converted from feet NGVD29 to feet NAVD88 using National Oceanic and Atmospheric Administration’s VDatum tool available at vdatum.noaa.gov. Cape Fear River Stage Variation Chemours Fayetteville Works, North Carolina Figure 8-1 Raleigh October 2019 4. Line inside boxes represents the median water level. 5. Bottom and top of boxes represent the 25th and 75th percentile water levels, respectively. 6. Extent of whiskers represent range of observed water levels. 0 10 20 30 40 50 60 70 80 90 Fayetteville W.O. Huske Lock and Dam #1Cape Fear River Water Level (feet NAVD88)USGS Gauge Location DRAFT - CONFIDENTIAL -- ATTORNEY CLIENT PRIVILEGED -- ATTORNEY WORK PRODUCT @A @A@A @A @A @A @A @A @A @A @A @A @A @A @A@A@A@A@A@A @A @A @A @A @A@A @A @A @A@A @A @A@A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A@A@A@A@A@A @A @A @A@A @A @A @A @A @A @A @A C a p e FearRi ver W illis C r e e k Seep A Seep B Seep C Seep D FTA-01133.61 FTA-02132.28 FTA-03132.9 MW-1S130.69 MW-2S130.36 MW-7S136.11 MW-8SDRY MW-9S132.81 MW-11125.13 MW-12S131.61 MW-23133.93 MW-25133.29 MW-27131.99MW-28130.2 MW-30133.01 NAF-01139.41 NAF-02139.43NAF-04139.99 NAF-06134.48 NAF-07138.92 NAF-08A138.54NAF-09136.38NAF-10135.76 NAF-11A130.58 NAF-13134.94 PW-01133.55 PZ-11137.02 PZ-12130.74 PZ-13136.73 PZ-14132.12 PZ-15135.12 PZ-17121.81 PZ-19R135.54 PZ-20R135.47 PZ-21R136.22 PZ-24133.36 PZ-25126.24 PZ-26134.8 PZ-27133.97 PZ-28135.14 PZ-35136.32 SMW-02131.95SMW-03DRYSMW-04A110.98 SMW-05125.05 SMW-06126.04 SMW-07127.98 SMW-08DRY NAF-05ANM MW-24NM NAF-03NM NAF-12NM MW-26135.99130130128132 1 3 6 13813414514010090 807 513012550 40 7060856555451 3 5 1 1 5 1 0 5 9 5 351 0 5 9 5 7570125 120 95 8580 1551505045150 1451 5 5145155 145110105 1451 4 0 706545 40 4540453512060 1357 5 70 4045150150 1 2 0 115105100 9565555045 40 155 155155150 145145150 140130125125125 1 1 5 105110 95 90 957 0 70 70605 5 5050505 0 454 0 403 5 353 5 145 145 1 4 5 1 4 5 3 5 Groundwater Elevation Map - Perched ZoneOctober 2019 Chemours Fayetteville Works, North Carolina Figure 9-1Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_GW_Contours_Maps_PerchedZone_Oct2019.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:NM - Not measuredft NAVD88 - feet North American Vertical Datum 1988.1. Depth to water measurements collected on October 15, 2019 used to generate contours.2. Groundwater contours were visually interpolated using water level measurements collected 15 October 2019.3. MW-26 and PZ-25 water levels not used in contouring.4. Topographic contours from LiDAR Digital Elevation Model ground surface elevations collected by NC Dept. of Public Safety published 18 October 2015.5. Seep locations identified visually as reported in Geosyntec, 2019. Seeps and Creeks Investigation Report. Chemours Fayetteville Works. 26 August 2019.6. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).7. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ Legend @A Monitoring Well @A Monitoring Well Used forGroundwater Extraction Groundwater Contours (ftNAVD88) - 2 feet interval Potentiometric SurfaceInferred Observed Seep Nearby Tributary Ground SurfaceElevation Contour (ftNAVD88) - 5 ft interval Site Boundary @A @A @A@A@A@A @A @A @A @A @A@A 1 1 5 14512 0 1 2 5 145 135 1401351 3 0 140 MW-31131.98 PZ-31130.7 PZ-34131.88 PZ-33132.72 PZ-32133.16 PZ-29133.29 MW-36132.08 MW-35132.29 MW-34132.19 MW-33132.56 MW-32132.36132 13470 0 7035 Feet ³Inset DRAFT; For Discussion Purposes Only. @A @A @A @A @A@A@A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A@A @A @A C a p e FearRi ver W illis C r e e k Seep A Seep B Seep C Seep D INSITU-01111.74 MW-13D104.33MW-14D109.67 MW-15DRR103.37 MW-16D113.02MW-17D117.09 MW-18D87.28 MW-19D88.24 MW-20D89.51 MW-21D105.71 MW-22D113.82 NAF-08B95.99 NAF-11B94.24 PIW-1D32.81 PIW-5S60.46 PIW-9S49.06 PIW-10S57.66 PW-0290.05 PW-03105.57 PW-0469.9 PW-05121.25 SMW-01123.51 SMW-02BDRYSMW-04B102.94 SMW-05P105.31 SMW-06B103.15 SMW-08B108.29 SMW-0985.2 SMW-1157.87 NAF-05BNM INSITU-02DRY 808 5 859010595 751 0 0 7 0 120 75 6 5 115 110 90 95 10 0 80 1451401009 0 807 513012550 40 7060856555451 3 5 1 1 5 1 0 5 9 5 351 0 5 9 5 7570125 120 95 8580 1551505045150 1451 5 5145155 145110105 1451 4 0 706545 40 4540453512060 1357 5 70 4045150150 1 2 0 115105100 9565555045 40 155 155155150 145145150 140130125125125 1 1 5 105110 95 90 957 0 70 70605 5 5050505 0 454 0 403 5 353 5 145 145 1 4 5 1 4 5 3 5 Groundwater Elevation Map - Surficial AquiferOctober 2019 Chemours Fayetteville Works, North Carolina Figure 9-2Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_GW_Contours_Maps_SurficialAquifer_Oct2019.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:NM - Not measuredft NAVD88 - feet North American Vertical Datum 1988.1. Depth to water measurements collected on October 15, 2019 used to generate contours.2. Groundwater contours were visually interpolated using water level measurements collected 15 October 2019.3. Topographic contours from LiDAR Digital Elevation Model ground surface elevations collected by NC Dept. of Public Safety published 18 October 2015.4. Seep locations identified visually as reported in Geosyntec, 2019. Seeps and Creeks Investigation Report. Chemours Fayetteville Works. 26 August 2019.5. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).6. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ Legend @A Monitoring Well Groundwater Contours (ftNAVD88) - 5 feet interval Potentiometric SurfaceInferredInferred GroundwaterFlow Direction Observed Seep Nearby Tributary Ground SurfaceElevation Contour (ftNAVD88) - 5 ft interval Site Boundary DRAFT; For Discussion Purposes Only. @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A @A W illis C r e e k Ca p e Fear Ri verSeep A Seep B Seep C Seep D BCA-0187.38 BCA-0274.55 BCA-03R101.27 BCA-04121.55 LTW-0137.3 LTW-0242.19 LTW-0542.35 PIW-1S32.59PIW-2D64.55 PIW-3D35.8 PIW-4D41.68 PIW-6S38.6 PIW-7D42.69 PIW-8D41.11 PIW-9D42.08 PIW-10DR61.28 PW-0952.24 PW-10R48.15 PW-1139.6 PW-1292.65 PW-13119.79 PW-1486.86 PW-15R76.96 PZ-2244.06 SMW-1233.44 CAPE FEAR WATER LEVEL29.65 SMW-03B93.4 SMW-1046.69 110 60 9050 1 00 120 80 70 40 1451401009 0 807 513012550 40 706095851 3 5 1 1 5 1 0 5 6 5 45110551 0 5 9 5 7570125 120 95 8580 1551505045150 1451 5 5145155 145 1451 4 0 706545 40 45404535120353060 1357 5 75 4045150150 1 2 0 115105105100 9565555045 40 155 155155150 145145150 140130125125125 1 1 5 105110 95 90 9570 7 0 70 70605 5 5050505 0 454 0 403 5 353 5 145 145 1 4 5 1 4 5 3 5 Groundwater Elevation Map - Black Creek AquiferOctober 2019 Chemours Fayetteville Works, North Carolina Figure 9-3Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_GW_Contours_Maps_BlackCreek_Oct2019.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:ft NAVD88 - feet North American Vertical Datum 1988.1. Depth to water measurements collected on October 15, 2019 used to generate contours.2. Groundwater contours were visually interpolated using water level measurements collected 15 October 2019.3. Cape Fear River water level indicated is median value for October 15, 2019 measured at the W.O. Huske Dam (USGS 2105500). Data obtained from National Water Information System (URL: https://waterdata.usgs.gov/nwis/ inventory/?site_no=02105769, date accessed: 2019-10-23).4. Topographic contours from LiDAR Digital Elevation Model ground surface elevations collected by NC Dept. of Public Safety published 18 October 2015.5. Seep locations identified visually as reported in Geosyntec, 2019. Seeps and Creeks Investigation Report. Chemours Fayetteville Works. 26 August 2019.6. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).6. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ Legend @A Monitoring Well Groundwater Contours(ft NAVD88) - 10 feetintervalPotentiometric SurfaceInferredInferred GroundwaterFlow Direction Observed Seep Nearby Tributary Ground SurfaceElevation Contour (ftNAVD88) - 5 ft interval Site Boundary DRAFT; For Discussion Purposes Only. @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A CapeFearRiverWP1: NAF-11A (S) / NAF-11B (D) WP2: SMW-06 (S) / SMW-06B (D) WP3: SMW-04A (S) / SMW-04B (D) WP4: SMW-05 (S) / SMW-05P (D) WP5: MW-30 (S) / PW-03 (D) WP6: NAF-08A (S) / NAF-08B (D) WP7: MW-23 (S) / BCA-02 (D) WP8: PIW-9S (S) / PIW-9D (D) WP9: PIW-10DR (D) / PIW-10S (S) WP10: PIW-5S (S) / PW-10R (D) WP11: PW-02 (S) / BCA-01 (D) WP12: SMW-11 (S) / PW-09 (D) WP13: MW-21D (S) / PW-12 (D) WP14: BCA-04 (D) / WP14: PW-05 (S) WP15: PW-03 (S) / PW-14 (D) WP16: PIW-1D (D) / PIW-1S (S) WP17: PIW-7D (D) / PIW-7S (S) WP18: PZ-22 (D) / LTW-04 (S) WP19: MW-25 (S) / PZ-25 (S) WP20: Old Outfall-002 (S) / PW-11 (D) 10/15/2019-0.22 10/15/2019-0.3 10/15/2019-1.51 10/15/2019-3.62 10/15/201912.31 10/15/201913.06 10/15/20192.67 10/15/201922.89 10/15/201927.44 2019-10-155.63 10/15/2019-0.18 10/15/20191.03 10/15/201918.71 10/15/201959.38 10/15/20196.98 10/15/20197.05 10/15/201919.74 10/15/201936.34 10/15/201942.55 10/15/20198.04 WillisCreek Calculated Vertical Gradients BetweenSelected Stratigraphic Units Chemours Fayetteville Works, North Carolina Figure 9-4Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Calculated_Vertical_Gradients_Oct2019.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:1. Positive vertical gradients (i.e. potential for downward flow) are colored in green. Negative vertical gradients (i.e. potential for upward flow) are colored in red.2. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).3. WP corresponds to well pair ID listed in Table 9-2.4. (s) and (d) refers to shallow and deep well of well pair.5. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ Legend @A Black Creek Aquifer @A Floodplain Deposits @A Perched Aquifer; Perched Zone @A Surficial Aquifer Negative Vertical Gradients Positive Vertical Gradients Nearby Tributary Site Boundary #* #* #* #* #* #*#* #* #* #* #* #* #* #* #* #* #* #* #* #* #* #*#* #* #* #* #* #* #*Seep A Seep B Seep C Seep D Old Outfall 002Ca p e F e a r Ri v erNC Highway 87Willis Cre ek W il l i s C r e e k GeorgiaBranchCreek Onsite PMPA Concentrations in Groundwater Chemours Fayetteville Works, North Carolina Figure 9-5Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteAnalyteDistributionInGW.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:ng/L - nanograms per liter 1. Samples were collected between June and September 2019.2. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).3. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.6 0 0.60.3 Miles ³ Legend Concentration (ng/L) < 10 10 - 100 100 - 1,000 1,000 - 10,000 10,000 - 100,000 100,000 - 1,000,000 > 1,000,000 Well Type !(Perched Zone Surficial Aquifer #*Black Creek Aquifer /Floodplain Deposits Observed Seep Nearby Tributary Site Boundary #* #* #* #* #* #*#* #* #* #* #* #* #*#* #* #* #* #* #* #* #* #* #* #* #* #* #* #* #*Seep A Seep B Seep C Seep D Old Outfall 002Ca p e F e a r Ri v erNC Highway 87Willis Cre ek W il l i s C r e e k GeorgiaBranchCreek Onsite PFMOAA Concentrations in Groundwater Chemours Fayetteville Works, North Carolina Figure 9-6Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteAnalyteDistributionInGW.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:ng/L - nanograms per liter 1. Samples were collected between June and September 2019.2. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).3. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.6 0 0.60.3 Miles ³ Legend Concentration (ng/L) < 10 10 - 100 100 - 1,000 1,000 - 10,000 10,000 - 100,000 100,000 - 1,000,000 > 1,000,000 Well Type !(Perched Zone Surficial Aquifer #*Black Creek Aquifer /Floodplain Deposits Observed Seep Nearby Tributary Site Boundary #* #* #* #* #* #*#* #* #* #*#* #* #* #* #* #* #*#* #* #* #* #* #* #* #* #* #* #* #* Seep A Seep B Seep C Seep D Old Outfall 002Ca p e F e a r Ri v erNC Highway 87Willis Cre ek W il l i s C r e e k GeorgiaBranchCreek Onsite HFPO-DA Concentrations in Groundwater Chemours Fayetteville Works, North Carolina Figure 9-7Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteAnalyteDistributionInGW.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:ng/L - nanograms per liter 1. Samples were collected between June and September 2019.2. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).3. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.6 0 0.60.3 Miles ³ Legend Concentration (ng/L) < 10 10 - 100 100 - 1,000 1,000 - 10,000 10,000 - 100,000 100,000 - 1,000,000 > 1,000,000 Well Type !(Perched Zone Surficial Aquifer #*Black Creek Aquifer /Floodplain Deposits Observed Seep Nearby Tributary Site Boundary $+$+$+$+ $+ $+$+$+ $+ $+$+$+$+$+$+$+$+ $+$+$+$+ $+ $+$+ $+ $+ $+ $+ $+ $+ Seep B Seep C Seep D Old Outfall 002 Seep ACapeFearRiver OLDOF-1130,000 OLDOF-2140,000OLDOF-3160,000OLDOF-4200,000 OLDOF-5290,000 SEEP-B-3-E445,000 SEEP-C-1340,000 SEEP-C-1-E2260,000 WC-12,200 WC-2680 WC-3560WC-4340 SEEP-B-1350,000 FTA-012,900 FTA-0290,000 FTA-0340,000 MW-12S52,000 MW-1S66,000 MW-2327,000 MW-24940,000 MW-2570,000 MW-27350,000MW-282,900 MW-2S84,000 MW-7S58,000 MW-9S21,000 PW-0156,000 PZ-1126,000 PZ-12110,000 PZ-1554,000 PZ-19R25,000 PZ-20R11,000 PZ-21R7,100 PZ-2463,000 PZ-26630 PZ-279,900 PZ-288,200 PZ-356,700 SMW-0278,000 SMW-0719,000NC Highway 87W illi s Creek GeorgiaBranchCreek Perched Zone Groundwater, Willis Creek, Seeps andOld Outfall 002 Total Table 3+ PFAS Concentrations Chemours Fayetteville Works, North Carolina Figure 9-8Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteAnalyteTotTable3_PerchedZone.mxd Last Revised: 10/31/2019 Author: TIpOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:ng/L - nanograms per liter 1. Perched Zone groundwater data plotted are from samples collected between June and September 2019.2. Willis Creek, Seeps and Old Outfall 002 surface water data plotted from samples collected in February 2019, the data set with greatest density of samples.3. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).4. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ Legend Concentration (ng/L) < 10 10 - 100 100 - 1,000 1,000 - 10,000 10,000 - 100,000 100,000 - 1,000,000 > 1,000,000 Well Type !(Perched Zone $+Surface Water Observed Seep Nearby Tributary Site Boundary $+$+$+ $+ $+$+$+ $+$+$+$+ $+ $+$+ $+ $+$+ $+ MW-3077,000 PZ-14130,000 PZ-13260,000 NAF-1086,000 NAF-07280,000 NAF-03700,000 NAF-01120,000 NAF-08A420,000 SEEP-B-4430,000 SEEP-B-4670,000 SEEP-B-3380,000 SEEP-B-2310,000 SEEP-A-9510,000 SEEP-A-8140,000 SEEP-A-7220,000 SEEP-A-4160,000 SEEP-A-3220,000 SEEP-A-2240,000 NAF-125,400,000 NAF-061,700,000 NAF-024,700,000 SEEP-A-12120,000 SEEP-A-11540,000 SEEP-A-10530,000 SEEP-B-3-A1460,000 NAF-09190,000 SEEP-A-6140,000 SEEP-A-5180,000 SEEP-A-1230,000 NAF-044,300,000 250 0 250125 Feet $+$+$+$+ $+ $+$+$+ $+ $+$+$+$+$+$+$+$+ $+$+$+$+ $+ $+$+ $+ $+ $+ $+ $+ $+ Seep C Seep D Old Outfall 002 Seep A Seep BCa p e F e a r Ri v e r OLDOF-1130,000 OLDOF-2140,000OLDOF-3160,000 OLDOF-4200,000 OLDOF-5290,000 SEEP-B-3-E445,000 SEEP-C-1340,000 SEEP-C-1-E2260,000 WC-12,200 WC-2680 WC-3560WC-4340 INSITU-012,400 MW-13D340,000MW-14D250,000 MW-15DRR81,000 MW-16D4,200 MW-17D3,800 MW-18D1,500 MW-19D4,400 MW-20D24,000 MW-21D2,000 MW-22D4,700 PIW-10S18,000 PIW-1D51,000 PIW-9S220,000 PW-0215,000,000 PW-043,500 PW-054,600 PW-063,000 SMW-016,200 SMW-04B70,000 SMW-05P350,000SMW-08B350,000 SMW-09110,000 SMW-1113,000 PW-074.600NC Highway 87W illis Creek GeorgiaBranchCreek Surficial Aquifer Groundwater, Willis Creek, Seeps andOld Outfall 002 Total Table 3+ PFAS Concentrations Chemours Fayetteville Works, North Carolina Figure 9-9Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteAnalyteTotTable3_SurficialZone.mxd Last Revised: 10/31/2019 Author: TIpOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:ng/L - nanograms per liter 1. Surficial groundwater data plotted are from samples collected between June and September 2019.2. Willis Creek, Seeps and Old Outfall 002 surface water data plotted from samples collected in February 2019, the data set with greatest density of samples.3. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).4. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ Legend Concentration (ng/L) < 10 10 - 100 100 - 1,000 1,000 - 10,000 10,000 - 100,000 100,000 - 1,000,000 > 1,000,000 Well Type Surficial $+Surface Water Observed Seep Nearby Tributary Site Boundary $+$+$+ $+ $+$+$+ $+$+$+$+ $+ $+$+ $+ $+$+ $+ SEEP-B-4430,000 SEEP-B-4670,000 SEEP-B-3380,000 SEEP-B-2310,000 SEEP-B-1350,000 SEEP-A-9510,000 SEEP-A-8140,000 SEEP-A-7220,000 SEEP-A-4160,000 SEEP-A-3220,000 SEEP-A-2240,000 SEEP-A-12120,000 SEEP-A-11540,000 SEEP-A-10530,000 SEEP-B-3-A1460,000 SEEP-A-6140,000 SEEP-A-5180,000 SEEP-A-1230,000 PW-03400,000 PIW-5S350,000 250 0 250125 Feet #* #* #* #* #* #* #* #*#* #* #* #*#* #* #* #* #* #*#* #* #* #* #* #* #* #* #* #* #* $+$+$+$+ $+ $+$+$+ $+ $+$+$+$+$+$+$+$+ $+$+$+$+ $+ $+$+ $+ $+ $+ $+ $+ $+ Seep C Seep D Old Outfall 002 Seep A Seep BCapeFearRiver OLDOF-1130,000 OLDOF-2140,000OLDOF-3160,000 OLDOF-4200,000 OLDOF-5290,000 SEEP-B-3-E445,000 SEEP-C-1340,000 WC-12,200 WC-2680 WC-3560WC-4340 BCA-01110,000 BCA-02200,000 BCA-03R490,000 LTW-05370,000 PIW-10DR110,000 PIW-2D20,000 PIW-3D44,000 PIW-7D200,000 PIW-8D700,000 PIW-9D260,000 PW-11420,000 PIW-7S17,000 SMW-03B660,000 SEEP-C-1-E2260,000 BCA-0427 PW-092,300 PW-1215 PW-13ND SMW-129,600 LTW-01140,000 SMW-10830 NC Highway 87W ill is Creek GeorgiaBranchCreek Black Creek Aquifer/Floodplain Deposits Groundwater, Willis Creek, Seeps and Old Outfall 002 Total Table 3+ PFAS Concentrations Chemours Fayetteville Works, North Carolina Figure 9-10Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteAnalyteTotTable3_BlackCreek_Floodplain.mxd Last Revised: 10/31/2019 Author: TIpOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:ng/L - nanograms per liter 1. Black Creek groundwater data plotted are from samples collected between June and September 2019.2. Willis Creek, Seeps and Old Outfall 002 surface water data plotted from samples collected in February 2019, the data set with greatest density of samples.3. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).4. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. 0.5 0 0.50.25 Miles ³ Legend Concentration (ng/L) < 10 10 - 100 100 - 1,000 1,000 - 10,000 10,000 - 100,000 100,000 - 1,000,000 > 1,000,000 Well Type #*Black Creek Aquifer/FloodpainDeposits $+Surface Water Observed Seep Nearby Tributary Site Boundary $+$+$+ $+ $+$+$+ $+$+$+$+ $+ $+$+ $+ $+$+ $+ #*#* #* #* #* #* #* #* #* SEEP-B-4430,000 SEEP-B-4670,000 SEEP-B-3380,000 SEEP-B-2310,000 SEEP-B-1350,000 SEEP-A-9510,000 SEEP-A-8140,000 SEEP-A-7220,000 SEEP-A-4160,000 SEEP-A-3220,000 SEEP-A-2240,000 SEEP-A-12120,000 SEEP-A-11540,000 SEEP-A-10530,000 SEEP-B-3-A1460,000 SEEP-A-6140,000 SEEP-A-5180,000 SEEP-A-1230,000 PZ-22240,000 PIW-6S230,000 LTW-04190,000 LTW-03220,000 PW-15R490,000 PW-10R170,000 PW-1418,000,000 PIW-4D6.7 LTW-0278,000 250 0 250125 Feet #* #* #* #* #* #* #* #* #* #* #*#* #* #* #* #*#* #* #* #* #* #* #* #* #* Seep B Seep C Seep D Old Outfall 002 Seep A C a p e F e a r Riv e r W il l is C reek GeorgiaBranchCreekNC Highway 87Onsite Spatial Distribution of Proposed PFAS Signatures Chemours Fayetteville Works, North Carolina Figure 9-11Raleigh ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteAnalyteTotTable3_forStatsAnalysis.mxd Last Revised: 10/31/2019 Author: TIpOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US 1,000 0 1,000500 Feet Notes:ng/L - nanograms per liter 1. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).2. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. Legend Concentration (ng/L) < 1,000 1,000 - 10,000 10,000 - 100,000 100,000 - 1,000,000 > 1.000,000 Well Type *Black Creek/Floodplain Deposits (Perched Zone Surficial Proposed PFAS Signature !(Aerial - Predominant PMPA !(Aerial - Mixture of PFAS !(Combined Process Water - Predominant PFMOAA !(Combined Process Water - Mixture of PFAS Observed Seep Nearby Tributary Site Boundary @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A @A@A Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan,METI, Esri China (Hong Kong), (c) OpenStreetMap contributors, and the GIS User Community Selected PFAS Concentrations in Offsite Groundwater Chemours Fayetteville Works, North Carolina Figure 9-12 Legend Raleigh 2 0 21 Miles ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_Offsite_Wells_Top_PFAS.mxd Last Revised: 10/31/2019 Author: jkasunicOctober 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US N S W E 6 mi4 mi2 mi Notes:All measurements are in ng/L (nanograms per litre).< - Analyte not detected above associated reporting limit. J - Analyte detected. Reported value may not be accurate or precise.UJ - Analyte not detected. Reporting limit may not be accurate or precise.1. Black lines represent cardinal directions (N, E, S, W)2. Only the six most frequently detected Table 3+ compounds in offsite wells are shown.3. Due to the scale of the map, pairs of wells that are in close proximity have been offset for visibility. Therefore, the placement of these wells on this map do not reflect their true geographic coordinates.4. Date indicated is date of sample collection.5. Table 3+ compounds abbreviations referenced in Table 2-1 of the report.6. "DRY" indicates well was dry at the time of sampling.7. Basemap sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), swisstopo, © OpenStreetMap contributors, and the GIS User Community Well Type @A Black Creek Aquifer @A Surficial Aquifer Site Boundary HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA 180 33 81 6.2 330 110 BLADEN-1D 2019-08-27 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA 11 <5 6.3 0.96 J 77 J 12 J BLADEN-2D 2019-08-27 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA 4.6 11 19 J 1.8 J 68 6.8 J BLADEN-2S 2019-08-27 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA 2.2 J <5 1.3 J <2 14 2.1 J BLADEN-3D 2019-08-28 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA 12 15 31 3.8 39 5.6 J BLADEN-3S 2019-08-28 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <3.6 <5 UJ <2 <2 9.2 J <20 BLADEN-4D 2019-08-28 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <3.7 <5 3 <2 12 <20 BLADEN-4S 2019-08-28 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <3.8 <5 UJ <2 <2 <10 <20 CUMBERLAND-1D 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <3.7 <5 11 1.9 J 13 <20 CUMBERLAND-1S 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <4 UJ <5 <2 <2 10 <20 CUMBERLAND-2D 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <4 UJ 22 4.3 <2 20 <20 CUMBERLAND-2S 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <4 UJ 17 J <2 <2 12 <20 CUMBERLAND-3D 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA 10 J 30 63 9.8 J 44 <20 CUMBERLAND-3S 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <4 UJ <5 <2 <2 12 <20 CUMBERLAND-4D 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA 110 J 39 110 18 140 42 CUMBERLAND-4S 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <4 UJ <5 <2 <2 <10 <20 CUMBERLAND-5D 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <4 UJ 22 <2 <2 14 <20 CUMBERLAND-5S 2019-09-16 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA 6 J <5 2.8 <2 35 <20 ROBESON-1D 2019-09-12 HFPO-DA PFMOAA PFO2HxA PFO3OA PMPA PEPA <4 UJ 6.3 6.2 <2 34 <20 ROBESON-1S 2019-09-12 Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Onsite and Osite Assessment Report/Top PFAS osite databoxes/TR0795_Osite_Wells_TopPFAS.aiDRY BLADEN-1S 2019-08-27 ") !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+! !+!!+! !+! !+! !+! !+! !+! !+! !+! !'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A !'A!'A !'A!'A!'A!'A!'A!'A !'A !'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A!'A!'A !'A !'A !'A !'A !'A !'A !'A!'A !'A !'A!'A !'A!'A!'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A!'A!'A!'A!'A!'A !'A !'A !'A !'A !'A!'A!'A !'A !'A!'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A!'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A !'A!'A !'A !'A !'A !'A !'A !'A !'A ")") ")CapeFearRiverDWR Dupont Station BCA-02 BCA-03R NAF-05B NAF-08B NAF-11B PZ-22 SMW-02BSMW-03B SMW-04B SMW-05P SMW-06BSMW-08B Bladen-1D PIW-10DR PIW-1D PIW-3D PIW-4D PIW-5S PIW-6S PIW-7D PIW-9DPIW-9S PW-02 PW-03 PW-05 PW-09 PW-10R PW-12 PW-14 PW-15R BCA-01 BCA-04 FTA-01FTA-02 FTA-03 INSITU-01 INSITU-02 LTW-01 LTW-02 LTW-03 LTW-04 LTW-05 MW-11 MW-12S MW-13D MW-14D MW-15DRR MW-16DMW-17D MW-18D MW-19D MW-1S MW-20D MW-21D MW-22D MW-23 MW-24 MW-25 MW-26 MW-27 MW-28 MW-2S MW-30MW-7S MW-8S MW-9S NAF-01 NAF-02 NAF-03 NAF-04 NAF-05A NAF-06NAF-07 NAF-08A NAF-09NAF-10 NAF-11A NAF-12NAF-13 PZ-11 PZ-12 PZ-13PZ-14 PZ-15PZ-17 PZ-24 PZ-25 PZ-26PZ-27 PZ-28 SMW-01 SMW-02SMW-03 SMW-04A SMW-05 SMW-06 SMW-07 SMW-08 SMW-09 SMW-10 SMW-11 SMW-12 Bladen-1S PIW-10S PIW-1S PIW-2D PIW-7S PIW-8D PW-01 PW-04 PW-06 PW-07 PW-11 PW-13 PZ-19R PZ-20RPZ-21R PZ-35 C ED B A C'E'D ' B ' A' A-1 A-2 GP-103 Onsite Cross-Section Lines Chemours Fayetteville Works, North Carolina Figure 10-1Raleigh 1,000 0 1,000500 Feet ³Path: P:\PRJ\Projects\TR0795\Database and GIS\GIS\Onsite and Offsite Assessment Report\TR0795_OnsiteWellNetwork_withXSec.mxd; TIp; 10/31/2019October 2019 Projection: NAD 1983 StatePlane North Carolina FIPS 3200 Feet; Units in Foot US Notes:1. Due to the scale of the map, pairs of wells that are in close proximity have been offset for visibility. Therefore, the placement of these wells on this map do not reflect their true geographic coordinates. 2. The outline of the River shown on this figure is approximate (River outline based on compilation of open data sources from ArcGIS online service and North Carolina Department of Environmental Quality Online GIS - Major Hydro shapefile).3. Basemap source: Esri, DigitalGlobe, GeoEye, Earthstar Geographics, CNES/Airbus DS, USDA, USGS, AeroGRID, IGN, and the GIS User Community. Legend !'A Perched Zone !'A Surficial Aquifer !'A Floodplain Deposits !'A Black Creek Aquifer !+!2019 Installed Wells ")DWR Dupont Station (V42V) Well Cluster ")CPT/DPT Soil Boring Site Boundary Cross-Section 0.5 0 0.50.25 Miles ³ 02? e ro sional surface? ? ? ? ft NAVD88 - feet in 1988 North American Vertical DatumVertical Exaggeration = 15x1. Lithology between borings is interpolated and estimated. 2. Groundwater elevations calculated from measured depth to water on 15 October 2019. 3. Cape Fear River water level indicated is median value for 15 October 2019 measured at the W.O. Huske Dam (USGS 2105500). Data obtained from National Water Information System (URL: https://waterdata.usgs.gov/nwis/inventory/?site_no=02105769, date accessed: 2019-09-24).4. Geological Mapping Locations from Figure 6-1. Approximate mapping elevations listed in Table 6-1.5. Seeps observed reported in Seeps and Creeks Investigation Report (Geosyntec, 2019) 011,000 2,000 3,000 4,000 5,000 6,000 Feet A'A West East MW-17D (100 ft)Notes 00Figure 10-2RaleighOctober 2019 Cross-Section A-A’ Chemours Fayetteville Works, North Carolina Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Onsite and Offsite Assessment Report/Numeric Modeling cross-sections/TR0795_CrossSectionA_A'.ai Legend Location Name Offset Distance+/- north/south of line Well Screen Fine to Medium Sand Clay Predominantly Fine to Medium-grained Sand Floodplain Deposits Fine to Medium-grained Sand with Variable Silt Content Micaceous Clay Silty or Sandy Claywith Organics 04Geological Mapping Location Corresponds to Section Black Creek Aquifer Groundwater Elevation Perched Zone Groundwater Elevation Surficial Aquifer Groundwater Elevation 110.98 131.95 102.94 93.40 87.38 64.55 35.80 105.71 110.98 102.94 64.55 92.65 SMW-04B (+74 ft)PIW-3D (-118 ft)Geologic Mapping Locations 36, 37, 39 Seeps observed from 65 to 90 ft elevation 03PIW-2D (+142 ft)SMW-03B (+126 ft)SMW-02B (+244 ft)SMW-02 (+245 ft)SMW-03 (+117 ft)BCA-01 (+41 ft)PW-12 (-8 ft)MW-21D (-7 ft)SMW-04A (+75 ft)150 125 100 75 50 25 0Elevation (ft NAVD88)Perched Zone Surficial Aquifer Black Creek Aquifer Upper Cape Fear Confining Unit Black Creek Confining Unit Surficial Aquifer PerchedClay Cape Fear River ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ' ' ' ' ' ' ' ' '' ' ' ' ' ' ' ' ' ' ' A A A A A A A A A A A A A A A A A A A A !'A !'A !'A !'A !'A !'A !! !! !!! !! ! ! !! ! ! !!! !!! ! ! ! ! ! ! ! ! ! '' '' ''' '' ' ' '' ' ' ''' ''' ' ' ' ' ' ' ' ' ' A A AA AAA A A A A A A A A AAAAAA A A A A A A A A A !!! ! !! ! ! ! ! ! ! ! ! !!!!!! ! ! ! ! !!!!!! ! !! ! !! ! ! !! !! !! ! ! ! !! !!!!!! ! !!! !! !!! ''' ' '' ' ' ' ' ' ' ' ' '''''' ' ' ' ' '''''' ' '' ' '' ' ' '' '' '' ' ' ' '' '''''' ' ''' '' ''' AAA A AA A A A AAA A A AAAAAA A A A A AAA AAA A AA A A AA A AA AA AAA A A AA AAAAAA A AAAAAAAA BCA-01 BCA-02 BCA-03R BCA-04 FTA-01 FTA-02 FTA-03 INSITU-01 INSITU-02 LTW-01 LTW-02 LTW-03 LTW-04 LTW-05 MW-12S MW-13D MW-14D MW-15DRR MW-16DMW-17D MW-18D MW-19D MW-1S MW-20D MW-21D MW-22D MW-23 MW-24 MW-25 MW-26 MW-27 MW-28 MW-2S MW-30 MW-7S MW-8S MW-9S NAF-01 NAF-02 NAF-03NAF-04 NAF-05A NAF-05B NAF-06 NAF-07 NAF-08A NAF-08B NAF-09NAF10 NAF-11A NAF-11B NAF-12 NAF-13PZ-11 PZ-12 PZ-13 PZ-14 PZ-15 PZ-19R PZ-20RPZ-21R PZ-22 PZ-24 PZ-25 PZ-26PZ-27PZ-28 PZ-35 SMW-02 SMW-02B SMW-03 SMW-03BSMW-04A SMW-04B SMW-05 SMW-05P SMW-06 SMW-06B SMW-07 SMW-08SMW-08B SMW-09 SMW-12 PIW-1D PIW-1S PIW-2D PIW-3D PIW-5S PIW-6S PIW-4D PIW-10DR PIW-10S PIW-7D PIW-8D PIW-7S PIW-9SPIW-9D PW-01 PW-02 PW-03 PW-04 PW-05 PW-10 PW-12 PW-13 PW-14 PW-15 Cape Fear RiverA A' 1,000 0 1,000500 Feet ³ E-E' E-E'")") ") A-1 A-2 GP-103PZ-17 MW-11 02ft NAVD88 - feet in 1988 North American Vertical DatumVertical Exaggeration = 15x1. Lithology between borings is interpolated and estimated. 2. Groundwater elevations calculated from measured depth to water on 15 October 2019. 3. Cape Fear River water level indicated is median value for 15 October 2019 measured at the W.O. Huske Dam (USGS 2105500). Data obtained from National Water Information System (URL: https://waterdata.usgs.gov/nwis/inventory/?site_no=02105769, date accessed: 2019-09-24).4. Geological Mapping Locations from Figure 6-1. Approximate mapping elevations listed in Table 6-1.5. Seeps observed reported in Seeps and Creeks Investigation Report (Geosyntec, 2019) 01150 125 100 75 50 25 0 1,000 2,000 3,000 4,000 5,000Elevation (ft NAVD88)Feet B B' West East Notes e ro sional surfaceMW-17D (100 ft)00Figure Raleigh October 2019 Cross-Section B-B’ Chemours Fayetteville Works, North Carolina Legend Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Onsite and Offsite Assessment Report/Numeric Modeling cross-sections/TR0795_CrossSectionB_B'.ai Fine to Medium Sand Clay Predominantly Fine to Medium-grained Sand Floodplain Deposits Fine to Medium-grained Sand with Variable Silt Content Micaceous Clay Silty or Sandy Claywith Organics 10-3 Location Name Offset Distance+/- north/south of line Well Screen NAF-11A (+103 ft)NAF-11B (+105 ft)MW-22D (-27 ft)LTW-02HP-22 (90 ft)03PIW-4DHP-21 PW-15R (+77 ft)BCA-03R (-77 ft)PZ-11 (-43 ft)MW-15DRR (-78 ft)NAF-02 (-107 ft)NAF-03 (-200 ft)NAF-07 (+131 ft)NAF-06 (+13 ft)MW-17D (-45 ft)MW-16D (-56 ft)Perched Zone Surficial Aquifer Upper Cape Fear Confining Unit Black Creek Confining Unit Black Creek Aquifer Surficial Aquifer Power Area LinedSediment Basin Chemours MonomersIXM AreaKuraray Butacite® Leased Area; Kuraray SentryGlas® Leased Area Seeps observed Tributary to Seep A ? ?Perched Clay (97 ft)? ? Cape Fear River? ?04Seeps observed Seeps observed Geologic Mapping Location 34 Geologic Mapping Location 32/33 Geologic Mapping Location 29/31 Geological Mapping Location Corresponds to Section Black Creek Aquifer Groundwater Elevation Perched Zone Groundwater Elevation Surficial Aquifer Groundwater Elevation 110.98 102.94 64.55 139.43 138.92 134.48 130.58 137.02 117.09 103.37 94.24 113.02113.82 101.27 76.96 42.1941.68 ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ' ' ' ' ' ' ' ' '' ' ' ' ' ' ' ' ' ' ' A A A A A A A A A A A A A A A A A A A A !'A !'A !'A !'A !'A !'A !! !! !!! !! ! ! !! ! ! !!! !!! ! ! ! ! ! ! ! ! ! '' '' ''' '' ' ' '' ' ' ''' ''' ' ' ' ' ' ' ' ' ' A A AA AAA A A A A A A A A AAAAAA A A A A A A A A A !!! ! !! ! ! ! ! ! ! ! ! !!!!!! ! ! ! ! !!!!!! ! !! ! !! ! ! !! !! !! ! ! ! !! !!!!!! ! !!! !! !!! ''' ' '' ' ' ' ' ' ' ' ' '''''' ' ' ' ' '''''' ' '' ' '' ' ' '' '' '' ' ' ' '' '''''' ' ''' '' ''' AAA A AA A A A AAA A A AAAAAA A A A A AAA AAA A AA A A AA A AA AA AAA A A AA AAAAAA A AAAAAAAA BCA-01 BCA-02 BCA-03R BCA-04 FTA-01 FTA-02 FTA-03 INSITU-01 INSITU-02 LTW-01 LTW-02 LTW-03 LTW-04 LTW-05 MW-12S MW-13D MW-14D MW-15DRR MW-16DMW-17D MW-18D MW-19D MW-1S MW-20D MW-21D MW-22D MW-23 MW-24 MW-25 MW-26 MW-27 MW-28 MW-2S MW-30 MW-7S MW-8S MW-9S NAF-01 NAF-02 NAF-03NAF-04 NAF-05A NAF-05B NAF-06 NAF-07 NAF-08A NAF-08B NAF-09NAF10 NAF-11A NAF-11B NAF-12 NAF-13PZ-11 PZ-12 PZ-13 PZ-14 PZ-15 PZ-19R PZ-20RPZ-21R PZ-22 PZ-24 PZ-25 PZ-26PZ-27PZ-28 PZ-35 SMW-02 SMW-02B SMW-03 SMW-03BSMW-04A SMW-04B SMW-05 SMW-05P SMW-06 SMW-06B SMW-07 SMW-08SMW-08B SMW-09 SMW-12 PIW-1D PIW-1S PIW-2D PIW-3D PIW-5S PIW-6S PIW-4D PIW-10DR PIW-10S PIW-7D PIW-8D PIW-7S PIW-9SPIW-9D PW-01 PW-02 PW-03 PW-04 PW-05 PW-10 PW-12 PW-13 PW-14 PW-15 Cape Fear RiverB B' 1,000 0 1,000500 Feet ³ E-E' E-E' ")") ") A-1 A-2 GP-103PZ-17 MW-11 02erosional surfaceft NAVD88 - feet in 1988 North American Vertical DatumVertical Exaggeration = 15x1. Lithology between borings is interpolated and estimated. 2. Groundwater elevations calculated from measured depth to water on 15 October 2019. 3. Cape Fear River water level indicated is median value for 15 October 2019 measured at the W.O. Huske Dam (USGS 2105500). Data obtained from National Water Information System (URL: https://waterdata.usgs.gov/nwis/inventory/?site_no=02105769, date accessed: 2019-09-24).4. Geological Mapping Locations from Figure 6-1. Approximate mapping elevations listed in Table 6-1.5. Seeps observed reported in Seeps and Creeks Investigation Report (Geosyntec, 2019) 011,000 2,000 3,000 4,000 5,000Feet C' West East 150 140 130 120 110 100 90 80 70 60 50 40 30 20 10 0 -10Elevation (ft NAVD88)C Notes MW-17D (100 ft)00Figure 10-4RaleighOctober 2019 Cross-Section C-C’ Chemours Fayetteville Works, North Carolina Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Onsite and Offsite Assessment Report/Numeric Modeling cross-sections/TR0795_CrossSectionC_C'.aiLegend Fine to Medium Sand Clay Floodplain Deposits Fine to Medium-grained Sand with Variable Silt Content Micaceous Clay Silty or Sandy Claywith Organics Predominantly Fine to Medium-grained Sand with some Clay Location Name Offset Distance+/- north/south of line Well Screen PW-14 (+114 ft)MW-30 (+134 ft)PW-03 (+134 ft)C-103H-9 PZ-22 (-52 ft)LTW-04 (-45 ft)MW-1S (-17 ft)MW-24/C-2 (+64 ft)PW-13 (+27 ft)PZ-18 (+55 ft)MW-14D (-126 ftMW-12S (+146 ft)MW-12D (+147 ft)MW-02S (-175 ft)MW-13D (-24 ft)? Wastewater Treatment Plant Perched Zone Surficial Aquifer Perched Clay Surficial Aquifer Black Creek Confining Unit Upper Cape Fear Confining Unit Black Creek Aquifer ?04Seeps observed Geologic Location 26 Geologic Location 27/28 Cape FearRiver Seep B flowing downhill Tributary toSeep B Seeps observed Geological Mapping Location Corresponds to Section Black Creek Aquifer Groundwater Elevation Perched Zone Groundwater Elevation Surficial Aquifer Groundwater Elevation 110.98 102.94 64.55 76.96 130.69 131.61 133.01 109.67 104.33 105.57 86.86 44.0642.55 CPT Boring ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ' ' ' ' ' ' ' ' '' ' ' ' ' ' ' ' ' ' ' A A A A A A A A A A A A A A A A A A A A !'A !'A !'A !'A !'A !'A !! !! !!! !! ! ! !! ! ! !!! !!! ! ! ! ! ! ! ! ! ! '' '' ''' '' ' ' '' ' ' ''' ''' ' ' ' ' ' ' ' ' ' A A AA AAA A A A A A A A A AAAAAA A A A A A A A A A !!! ! !! ! ! ! ! ! ! ! ! !!!!!! ! ! ! ! !!!!!! ! !! ! !! ! ! !! !! !! ! ! ! !! !!!!!! ! !!! !! !!! ''' ' '' ' ' ' ' ' ' ' ' '''''' ' ' ' ' '''''' ' '' ' '' ' ' '' '' '' ' ' ' '' '''''' ' ''' '' ''' AAA A AA A A A AAA A A AAAAAA A A A A AAA AAA A AA A A AA A AA AA AAA A A AA AAAAAA A AAAAAAAA BCA-01 BCA-02 BCA-03R BCA-04 FTA-01 FTA-02 FTA-03 INSITU-01 INSITU-02 LTW-01 LTW-02 LTW-03 LTW-04 LTW-05 MW-12S MW-13D MW-14D MW-15DRR MW-16DMW-17D MW-18D MW-19D MW-1S MW-20D MW-21D MW-22D MW-23 MW-24 MW-25 MW-27 MW-28 MW-2S MW-30 MW-7S MW-8S MW-9S NAF-01 NAF-02 NAF-03NAF-04 NAF-05A NAF-05B NAF-06 NAF-07 NAF-08A NAF-08B NAF-09NAF10 NAF-11A NAF-11B NAF-12 NAF-13PZ-11 PZ-12 PZ-13 PZ-14 PZ-15 PZ-19R PZ-20RPZ-21R PZ-22 PZ-24 PZ-25 PZ-26PZ-27PZ-28 PZ-35 SMW-02 SMW-02B SMW-03 SMW-03BSMW-04A SMW-04B SMW-05 SMW-05P SMW-06 SMW-06B SMW-07 SMW-08SMW-08B SMW-09 SMW-12 PIW-1D PIW-1S PIW-2D PIW-3D PIW-5S PIW-6S PIW-4D PIW-10DR PIW-10S PIW-7D PIW-8D PIW-7S PIW-9SPIW-9D PW-01 PW-02 PW-03 PW-04 PW-05 PW-10 PW-12 PW-13 PW-14 PW-15 Cape Fear River1,000 0 1,000500 Feet ³ C C' MW-26 E-E' ")") ") A-1 A-2 GP-103PZ-17 MW-11 E-E' 02?erosional surface? ft NAVD88 - feet in 1988 North American Vertical DatumVertical Exaggeration = 15x1. Lithology between borings is interpolated and estimated. 2. Groundwater elevations calculated from measured depth to water on 15 October 2019. 3. Cape Fear River water level indicated is median value for 15 October 2019 measured at the W.O. Huske Dam (USGS 2105500). Data obtained from National Water Information System (URL: https://waterdata.usgs.gov/nwis/inventory/?site_no=02105769, date accessed: 2019-09-24).4. Geological Mapping Locations from Figure 6-1. Approximate mapping elevations listed in Table 6-1.5. Seeps observed reported in Seeps and Creeks Investigation Report (Geosyntec, 2019) 01150 125 100 75 50 25 0 1,000 2,000 3,000 4,000 5,000Elevation (ft NAVD88)Feet D D' West East Notes MW-17D (100 ft)00Figure Raleigh October 2019 Cross-Section D-D’ Chemours Fayetteville Works, North Carolina Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Onsite and Offsite Assessment Report/Numeric Modeling cross-sections/TR0795_CrossSectionD_D'.ai10-5 Legend Fine to Medium Sand Clay Floodplain Deposits Fine to Medium-grained Sand with Variable Silt Content Micaceous Clay Silty or Sandy Claywith Organics Predominantly Fine to Medium-grained Sand with some Clay Location Name Offset Distance+/- north/south of line Well Screen MW-26 (+22 ft)PZ-16 (-19 ft)PW-05 (-3 ft)A-1 (+89 ft)A-2 (+100 ft)GP-104 (+450 ft)03LTW-05 (+60 ft)PIW-9S (-172 ft)PIW-9D (-164 ft)PIW-8D (+38 ft)BCA-04 (-7 ft)PZ-24 (-50 ft)BCA-02 (-42 ft)Perched Zone Upper Cape Fear Confining Unit Black Creek Confining Unit Surficial Aquifer Black Creek Aquifer ? ? ?? ? ? Outfall 002 DuPont polyvinyl fluoride (PVF) Leased Area ? Cape FearRiverPZ-26 (-71 ft)Perched Clay ? ? ? ? ?04Seeps observed Old Outfall 002 Seep C CPT Boring Soil BoringCorresponds to Section Black Creek Aquifer Groundwater Elevation Perched Zone Groundwater Elevation Surficial Aquifer Groundwater Elevation 110.98 102.94 64.55 121.25 49.06 42.08 42.3541.11 134.80 133.36 135.99 121.55 74.55 ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ' ' ' ' ' ' ' ' '' ' ' ' ' ' ' ' ' ' ' A A A A A A A A A A A A A A A A A A A A !'A !'A !'A !'A !'A !'A !! !! !!! !! ! ! !! ! ! !!! !!! ! ! ! ! ! ! ! ! ! '' '' ''' '' ' ' '' ' ' ''' ''' ' ' ' ' ' ' ' ' ' A A AA AAA A A A A A A A A AAAAAA A A A A A A A A A !!! ! !! ! ! ! ! ! ! ! ! !!!!!! ! ! ! ! !!!!!! ! !! ! !! ! ! !! !! !! ! ! ! !! !!!!!! ! !!! !! !!! ''' ' '' ' ' ' ' ' ' ' ' '''''' ' ' ' ' '''''' ' '' ' '' ' ' '' '' '' ' ' ' '' '''''' ' ''' '' ''' AAA A AA A A A AAA A A AAAAAA A A A A AAA AAA A AA A A AA A AA AA AAA A A AA AAAAAA A AAAAAAAA BCA-01 BCA-02 BCA-03R BCA-04 FTA-01 FTA-02 FTA-03 INSITU-01 INSITU-02 LTW-01 LTW-02 LTW-03 LTW-04 LTW-05MW-11 MW-12S MW-13D MW-14D MW-15DRR MW-16DMW-17D MW-18D MW-19D MW-1S MW-20D MW-21D MW-22D MW-23 MW-24 MW-25 MW-26 MW-27 MW-28 MW-2S MW-30 MW-7S MW-8S MW-9S NAF-01 NAF-02 NAF-03NAF-04 NAF-05A NAF-05B NAF-06 NAF-07 NAF-08A NAF-08B NAF-09NAF10 NAF-11A NAF-11B NAF-12 NAF-13PZ-11 PZ-12 PZ-13 PZ-14 PZ-15 PZ-17 PZ-19R PZ-20RPZ-21R PZ-22 PZ-24 PZ-25 PZ-26PZ-27PZ-28 PZ-35 SMW-02 SMW-02B SMW-03 SMW-03BSMW-04A SMW-04B SMW-05 SMW-05P SMW-06 SMW-06B SMW-07 SMW-08SMW-08B SMW-09 SMW-12 PIW-1D PIW-1S PIW-2D PIW-3D PIW-5S PIW-6S PIW-4D PIW-10DR PIW-10S PIW-7D PIW-8D PIW-7S PIW-9SPIW-9D PW-01 PW-02 PW-03 PW-04 PW-05 PW-10 PW-12 PW-13 PW-14 PW-15 Cape Fear River1,000 0 1,000500 Feet ³ D D' E-E' E-E' ")") ") A-1 A-2 GP-103 02ft NAVD88 - feet in 1988 North American Vertical DatumVertical Exaggeration = 15xSeep A bottom is approximate1. Lithology between borings is interpolated and estimated. 2. Groundwater elevations calculated from measured depth to water on 15 October 2019.3. Cape Fear River water level indicated is median value for 15 October 2019 measured at the W.O. Huske Dam (USGS 2105500). Data obtained from National Water Information System (URL: https://waterdata.usgs.gov/nwis/inventory/?site_no=02105769, date accessed: 2019-09-24). 4. Geological Mapping Locations from Figure 6-1. Approximate mapping elevations listed in Table 6-1.5. Seeps observed reported in Seeps and Creeks Investigation Report (Geosyntec, 2019) 011,000 2,000 3,000 4,000 5,000 Feet E E' South North 150 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140 -10Elevation (ft NAVD88)Notes MW-17D (100 ft)00Figure Raleigh October 2019 Cross-Section E-E’ Chemours Fayetteville Works, North Carolina Data/PRJ/Projects/TR0795/Database and GIS/Illustrator/Onsite and Offsite Assessment Report/Numeric Modeling cross-sections/TR0795_CrossSectionE_E'.ai10-6 Legend Fine to Medium Sand Clay Floodplain Deposits Fine to Medium-grained Sand with Variable Silt Content Micaceous Clay Silty or Sandy Claywith Organics Predominantly Fine to Medium-grained Sand with some Clay Location Name Offset Distance+/- east/west of line Well Screen PW-14 (-24 ft)PW-03 (+28 ft)MW-30 (-17 ft)PZ-14 (-171 ft)PZ-13 (+199 ft)NAF-08A (+80 ft)NAF-08B (+74 ft)NAF-12 (-34 ft)NAF-04 (-99 ft)NAF-03 (-67 ft)NAF-02 (-184 ft)NAF-06 (+82 ft)PW-15R (+174 ft)NAF-11A (+166)NAF-11B (+162)03BCA-01 (+59 ft)PW-02 (+47 ft)SMW-02 (-14 ft)SMW-02B (-19 ft)SMW-12 (+31 ft)DuPont polyvinyl fluoride (PVF) Leased Area PZ-16 (+82 ft)BCA-02 (+84 ft)MW-23 (+84 ft)PZ-25 (+98 ft)MW-25 (+97 ft)Chemours MonomersIXM Area Perched Zone Perched Clay Surficial Aquifer Black Creek Confining Unit Black Creek Aquifer Upper Cape Fear Confining Unit ? ? ?? ? ?04Seep A Corresponds to Section Black Creek Aquifer Groundwater Elevation Perched Zone Groundwater Elevation Surficial Aquifer Groundwater Elevation 110.98 102.94 74.55 133.93 133.29 133.01 132.12 136.73 138.54 135.05 139.99 139.43 134.48 130.58 131.95 105.57 95.99 94.24 90.05 126.24 64.55 76.96 87.38 33.44 86.86 ! ! ! ! ! ! ! ! !! ! ! ! ! ! ! ! ! ! ! ' ' ' ' ' ' ' ' '' ' ' ' ' ' ' ' ' ' ' A A A A A A A A A A A A A A A A A A A A !'A !'A !'A !'A !'A !'A !! !! !!! !! ! ! !! ! ! !!! !!! ! ! ! ! ! ! ! ! ! '' '' ''' '' ' ' '' ' ' ''' ''' ' ' ' ' ' ' ' ' ' A A AA AAA A A A A A A A A AAAAAA A A A A A A A A A !!! ! !! ! ! ! ! ! ! ! ! !!!!!! ! ! ! ! !!!!!! ! !! ! !! ! ! !! !! !! ! ! ! !! !!!!!! ! !!! !! !!! ''' ' '' ' ' ' ' ' ' ' ' '''''' ' ' ' ' '''''' ' '' ' '' ' ' '' '' '' ' ' ' '' '''''' ' ''' '' ''' AAA A AA A A A AAA A A AAAAAA A A A A AAA AAA A AA A A AA A AA AA AAA A A AA AAAAAA A AAAAAAAA BCA-01 BCA-02 BCA-03R BCA-04 FTA-01 FTA-02 FTA-03 INSITU-01 INSITU-02 LTW-01 LTW-02 LTW-03 LTW-04 LTW-05 MW-12S MW-13D MW-14D MW-15DRR MW-16DMW-17D MW-18D MW-19D MW-1S MW-20D MW-21D MW-22D MW-23 MW-24 MW-25 MW-26 MW-27 MW-28 MW-2S MW-30 MW-7S MW-8S MW-9S NAF-01 NAF-02 NAF-03NAF-04 NAF-05A NAF-05B NAF-06 NAF-07 NAF-08A NAF-08B NAF-09NAF10 NAF-11A NAF-11B NAF-12 NAF-13PZ-11 PZ-12 PZ-13 PZ-14 PZ-15 PZ-19R PZ-20RPZ-21R PZ-22 PZ-24 PZ-25 PZ-26PZ-27PZ-28 PZ-35 SMW-02 SMW-02B SMW-03 SMW-03BSMW-04A SMW-04B SMW-05 SMW-05P SMW-06 SMW-06B SMW-07 SMW-08SMW-08B SMW-09 SMW-12 PIW-1D PIW-1S PIW-2D PIW-3D PIW-5S PIW-6S PIW-4D PIW-10DR PIW-10S PIW-7D PIW-8D PIW-7S PIW-9SPIW-9D PW-01 PW-02 PW-03 PW-04 PW-05 PW-10 PW-12 PW-13 PW-14 PW-15 Cape Fear RiverEE'1,000 0 1,000500 Feet ³ D-D'C-C'B-B'A-A' A-A' ")") ") A-1 A-2 GP-103PZ-17 MW-11 RainRain Cape Fe ar Ri v er Cape Fe ar Ri v er Perched Zo n e Surficial Aqu i f e r Black Cree k Aquifer Ground w a t e r ChemoursFayetteville WorksManufacturing Area ChemoursFayetteville WorksManufacturing Area Perched Zone Clay Black CreekConfining Unit Perched Zone Clay Black CreekConfining Unit Non-contact cooling water from riverNon-Chemours treated process waterStormwater (4) Outfall 002 (Pipe to River) Groundwater Seep B Seep A Seep C Seep D (1) UpstreamCape Fear River (3) Aerial Deposition (9) Georgia Branch Creek (2) Willis Creek ( 7 ) Old Outfall 0 02(6) Seeps ( 5) O nSite Groundwater (8) Adjacentand Downstream (3) Aerial Deposition (9) Georgia Branch Creek (2) Willis Creek ( 7 ) Old Outfall 0 02(6) Seeps ( 5) O nSite Groundwater ( 8 ) A dja cent and W.O. Huske DamW.O. Huske Dam Upper Cape Fear Confining Unit(4) Outfall 002 (Pipe to River) (1) UpstreamCape Fear River Downstre a m Groundwater ( 8 ) A dja cent and Downstre a m Groundwater Groundwater (8) Adjacentand Downstream Raleigh, NC September 2019 Figure 10-7 Potential PFAS Pathways to the Cape Fear River from Site Chemours Fayetteville Works, North Carolina TR0795 APPENDIX A Field Investigation Methods APPENDIX A: FIELD METHODS 1. INTRODUCTION This appendix provides details on the methodologies employed during field events associated with the On and Offsite Assessment report, including drilling, well installation, and soil and groundwater sample collection. The following methods are described herein: • General Field Procedures • Sonic and Direct Push Drilling • Well Development • Groundwater Sampling • Investigative Derived Waste (IDW) Management 1.1 General Field Procedures All equipment was inspected by the field program supervisor and calibrated daily prior to use in the field according to the manufacturer’s recommendations. 1.1.1 Decontamination Methods Sample containers were new and used only once for each sample. Disposable equipment (e.g., gloves, tubing, etc.) was not reused, therefore; these items did not require decontamination. All non-dedicated or non-disposable sampling equipment was decontaminated immediately before sample collection in the following manner: • De-ionized water rinse; • Scrub with de-ionized water containing non-phosphate detergent (i.e., Alconox®); and • De-ionized water rinse. 1.1.2 Sample Shipping, Chain of Custody, and Holding Times Upon sample collection, each labeled, containerized sample was placed into a heavy plastic bag inside an insulated sample cooler with ice. Prior to shipment of the samples to the laboratory, a chain of custody (COC) form was completed by the field sample custodian. Sample locations, sample identification numbers, description of samples, number of samples collected, and specific laboratory analyses to be performed on the samples were recorded on the COC form. The COC was signed by the field personnel relinquishing the samples to the courier and was signed by the laboratory upon receipt of the cooler. 1.2 Drilling Methods All boring locations were cleared for utilities using geophysical methods and then manually cleared to a depth of 5 feet (ft). Borings were advanced using either a direct push followed by hollow stem augers where necessary, or sonic drill rig depending on target drilling depth. A track mounted direct push drill rig was used to advance borings into shallow surface aquifers. Where Appendix A Page 2 borings were advanced to deeper aquifer units, a 7-inch override (outer) steel casing was advanced using a sonic drill rig to reduce the risk of potential cross-contamination from the surface to deeper hydrogeologic units. Borings into the deeper units were then advanced though the casing using a 6-inch core barrel. Soil cores were retrieved in 5-foot sections for DPT or 10-foot sections for sonic, photographed, and logged for lithology. Lithology was logged using the Unified Soil Classification System (USCS, ASTM D-2487) with attention paid to lithologic contacts and soil moisture content. Contacts were determined as depths below ground surface, accounting for no or poor recovery, slough and heave, using professional judgement. Downhole equipment was decontaminated before drilling each well. Soil samples were collected for PFAS and physical soil matrix properties. PFAS samples were collected from the unsaturated zones, where possible. Physical parameter samples (e.g., particle size distribution, fraction organic carbon, specific gravity etc.) were collected from representative hydrogeologic units encountered. Monitoring wells were constructed at each location in accordance with the North Carolina Well Construction Standards for a monitoring well (15A NCAC 2C). Well and screen depths were determined based on field lithologic logs and professional judgement of field geologist, in consultation with the project manager. Wells were constructed with a minimum of 2-inch diameter, flush-threaded, schedule-40, poly-vinyl chloride (PVC) with 0.010-inch machine-slotted screens. A 5-foot screen was used for higher yielding units (e.g., Surficial and Black Creek Aquifers). The well screen was surrounded by a filter pack of washed silica sand size 20-30, which was installed by tremie from a minimum of 6 inches below the bottom of the well sump, extending to two foot above the well screen. The top of the sand filter pack was sealed with bentonite pellets placed down the annular space and hydrated in place. Bentonite pellets were added to form a layer at least 2 ft thick above the sand pack. Bentonite was placed slowly to avoid bridging. The bentonite hydrated for a minimum of 1 hour as specified by the manufacturer. Depths to the top of the sand pack and the top of the bentonite seal were measured using a weighted tape. The remaining annular space was pressure- grouted by tremie pipe to ground surface according to requirements described in 15A NCAC 2C.0107 standards. After allowing at least 24 hours for the grout to cure, the wells were sealed to the ground surface with concrete and a minimum 2-ft by 2-ft by 6-inch thick concrete surface pad that slopes away from the center of the pad and protective casing. Well completions include a stick-up or flush- mount cover, water tight well cap and lock. The well head was completed in accordance with 15A NCAC 2C.0108 standards which includes installation of well contractor information plate with the following information recorded: (1) well contractor name and certification number; (2) date well completed; (3) total depth of well; Appendix A Page 3 (4) a warning that the well is not for water supply and that the groundwater may contain hazardous materials; (5) depths to the top and bottom of the screen; and (6) the well identification number or name assigned by the well owner. 1.3 Well Development The well contractor developed the installed wells to improve the connection to the aquifer and to remove materials potentially introduced into the formation during drilling which may include drilling fluids, mud, additives etc. Wells were developed by mechanically surging and pumping the water column using a submersible pump to remove fines and stimulate yield such that the formation water was free of visible sediment, contained less than 50 NTUs of turbidity, or following development for an extended period (e.g., turbidity readings that did not improve for an hour and 3 or more consecutive measurements that are within 10% of each other). Several newly installed onsite and offsite wells stabilized with elevated turbidity measurements (>50 NTUs; Table A-1, A-2). These wells will be redeveloped and resampled. 1.4 Groundwater Sampling Groundwater samples were collected using low-flow sampling techniques. New dedicated high density polyethylene (HDPE) tubing and silicone tubing was used for the pump head at each well. Groundwater was pumped directly from submerged tubing through the pump head to a flow- through cell until turbidity measurements were below 20 NTU and all other field parameters (pH, temperature, specific conductivity, dissolved oxygen, oxidation-reduction potential) were stabilized within ±10 percent (%) over a five-minute interval. Once flow-through cell readings were stable, the flow-through cell was disconnected, the tubing was cut to provide a new clean end and grab samples were collected from the discharge of the peristaltic pump in new 250 milliliters (mL) laboratory-supplied HDPE bottles. Samples were shipped on ice to TestAmerica Sacramento and the Chemours Fluoroproducts Analytical Group. Table A-1 presents a summary of stabilized groundwater field parameters (pH, temperature, specific conductivity, dissolved oxygen, oxidation-reduction potential) 1.5 Investigative Derived Waste (IDW) Disposal Investigative derived waste generated during drilling activities and well sampling was managed per plant specific IDW management plan. Solid and liquid waste generated during drilling activities were separated and contained within 55-gallon drums and temporarily stored within the laydown yard. All drums are inspected for integrity prior to use and are properly sealed and labeled when in use. Fluids were contained within closed top drums, while solids were stored in open top drums. IDW water free of solids is sent to Texas Molecular in Deerpark, Texas for disposal via deep well injection. Purge water generated from well development and sampling was handled differently depending on the location of the well. Offsite well water was transported onsite and disposed of in the waste water treatment system. Purge water generated from onsite wells were contained in labeled closed top drums and staged for offsite shipment and disposal to an approved hazardous waste facility. Soils generated during drilling activities will be disposed of following their characterization. TABLE A-1ADDITIONAL MONITORING WELL DEVELOPMENTChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Area Well IDNorthing(ft, NAD83)Easting (ft, NAD83)InstallationDateCasing ConstructionCasing Diameter(in)Well Casing Depth(ft)Screened Interval(ft)Filter Pack Interval(ft)Bentonite Seal Interval(ft)Grout Interval (ft)Ground Elevation (ft NAVD88)TOC Elevation(ft NAVD88)AquiferOnsite PIW-2D 399,922.75 2,051,317.64 8/15/2019 PVC 2 50 40 - 50 38 - 50 36 - 38 0 - 36 98.16 100.85 Black Creek AquiferOnsite PIW-4D 398,817.36 2,052,102.82 7/1/2019 PVC 2 37.3 32.3 - 37.3 30 - 38 28 - 30 0 - 28 50.37 53.04 Black Creek AquiferOnsite PW-02 399,779.06 2,050,649.47 7/30/2019 PVC 2 60 50 - 60 47.5 - 60 45.5 - 47.5 0 - 45.5 143.76 146.43 Surficial AquiferOnsite PW-03 397,339.81 2,050,765.32 7/23/2019 PVC 2 45 35 - 45 33 - 45 31 - 33 0 - 31 144.97 147.97 Surficial AquiferOnsite PW-04 394,659.55 2,050,940.66 7/24/2019 PVC 2 27 17 - 27 15 - 27 13 - 15 0 - 13 94.74 97.75 Surficial AquiferOnsite PW-07 390,847.71 2,049,258.26 7/24/2019 PVC 2 38 28 - 38 26 - 38 23.5 - 26 0 - 23.5 144.90 148.16 Surficial AquiferOnsite PW-09 401,997.39 2,048,980.54 8/12/2019 PVC 2 54 44 - 54 42 - 54 40 - 42 0 - 40 74.76 72.03 Black Creek AquiferOnsite PW-10R 398,516.12 2,051,936.59 8/9/2019 PVC 2 67 57 - 67 55 - 67 52 - 55 0 - 52 73.28 75.90 Black Creek AquiferOnsite PW-12 399,500.45 2,047,063.51 8/1/2019 PVC 2 119 109 - 119 106 - 119 103 - 106 0 - 103 148.05 150.61 Black Creek AquiferOnsite PW-13 397,584.26 2,048,029.18 8/23/2019 PVC 2 130 120 - 130 118 - 130 115 - 118 0 - 115 146.52 149.36 Black Creek AquiferOnsite PW-15R 398,900.88 2,051,011.75 8/14/2019 PVC 2 120 110 - 120 108 - 120 105 - 108 0 - 105 133.33 136.14 Black Creek AquiferOffsite Robeson-1S 381,405.51 2,020,158.29 9/9/2019 PVC 227 17 - 27 15 - 27 13 - 15 0 - 13 161.51 161.22 Surficial AquiferOffsite Robeson-1D 381,413.60 2,020,160.37 9/4/2019 PVC 253 42.75 - 52.75 41 - 53 39 - 41 0 - 39 161.23 160.93 Black Creek AquiferOffsite Cumberland-2D 449,984.84 2,074,020.57 9/12/2019PVC 2 57 47 - 57 43 - 57 43 - 45 0 - 43 134.06 133.79 Black Creek AquiferOffsite Cumberland-4S 413,083.94 2,078,256.96 9/11/2019PVC 2 20 10 - 20 8 - 20 6 - 8 0 - 6 124.15 123.93 Surficial AquiferOffsite Cumberland-4D 413,093.08 2,078,251.38 9/10/2019PVC 2 67 57 - 67 55 - 67 53 - 55 0 - 53 124.09 123.79 Black Creek AquiferOffsite Cumberland-5S 405,623.27 2,138,233.37 9/11/2019PVC 2 24 14 - 24 12 - 24 10 - 12 0 - 10 107.00 106.65 Surficial AquiferNotes:1. Wells to be re-developed include those installed between June - September 2019 with high turbidity reported (> 50 NTUs) in groundwater sampling forms from June 2019 as reported in the On and Offsite Assessment (Geosyntec, 2019).2. PW-9 and PW-15R wells indicated elevated pH (greater than 9) as reported in the On and Offsite Assessment (Geosyntec, 2019) and may benefit from further development. 3. Survey completed by Freeland-Clinkscales & Associates of NC. 4. Northing and Easting provided in feet, State Plane Coordinates for North Carolina (zone 3200) in North American Datum of 1983.5. Ground surface and top of casing elevation reported in North American Vertical Datum of 1988.6. Abbreviations:ft NAD83 - feet, State Plane Coordinate System North American Datum 1983ft NAVD88 - feet, North American Vertical Datum of 1988in - inchesft - feetft bgs - feet below ground surfaceNA - not availableNM - not measuredTR0795Page 1 of 1October 2019 TABLE A2GROUNDWATER FIELD PARAMETERSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Well ID Sampling Date pH stable DO stable (mg/L) Redox stable (mV) Turbididty stable (NTU) Spec. Cond. Stable (mS/cm)Temp. stable (°C)Notes BCA-01 7/8/2019 5.79 NR 69 10.6 0.09 25.82BCA-02 7/9/2019 5.13 NR 73 18.2 0.23 20.6BCA-03R 9/12/2019 3.52 0.09 286.1 1.44 0.18 23.5BCA-04 7/9/2019 5.24 NR 16 16.1 0.05 20.11FTA-01 6/27/2019 5.57 4.82 234 NR 0.05 28.57FTA-02 6/27/2019 4.22 1.13 310 NR 0.07 28.75FTA-03 6/27/2019 4.5 1.65 308 NR 0.05 25.94INSITU-01 6/20/2019 3.72 0.23 211 5.7 0.05 34.5LTW-01 7/17/2019 3.79 2.44 318 NR 0.12 24.91LTW-02 7/17/2019 4.82 1.52 168 NR 0.08 25.58LTW-03 7/17/2019 5.18 NR 168 0.1 0.1 22.94LTW-04 7/17/2019 5.01 NR 241 10.3 0.09 22.93LTW-05 7/16/2019 5.02 3.9 173 2.4 0.14 21.3MW-1S 6/28/2019 5.75 0.23 47 10.5 0.06 24.13MW-2S 7/10/2019 5.6 NR -52 0.4 0.14 23.43MW-7S 7/10/2019 4.28 1.8 340 4.44 0.08 27.51MW-9S 6/26/2019 4.57 7.58 370 NR 0.07 22.91MW-11S 7/11/2019 NR NR NR NR NR NRWell went dry during purging; no sample collected.MW-12S 7/8/2019 5.24 3.93 218 10.8 0.06 23.55MW-13D 7/11/2019 3.56 NR 231 NR 0.11 22.24MW-14D7/11/20193.80.36321NR0.0825.72MW-15DRR 9/12/2019 3.85 3.19 324.5 0.73 0.4 22.9MW-16D 7/15/2019 4.03 NR 389 NR 0.01 27.1MW-17D 7/15/2019 3.99 NR 239 2 0.08 33.2MW-18D 7/15/2019 4.11 NR 238 17.7 0.07 23.56MW-19D 7/9/2019 3.7 NR 321 NR 0.08 20.25MW-20D 7/9/2019 3.68 3.55 290 NR 0.08 20.55MW-21D 7/11/2019 3.73 NR 300 NR 0.08 21.86MW-22D 7/15/2019 4.11 NR 379 NR 0.1 25.6MW-23 6/25/2019 5.11 4 242 19.8 0.06 25.42MW-24 7/17/2019 NR NR NR NR NR NRWell is pumped daily and went dry the day prior. No parameters were recorded.MW-25 6/25/2019 4.19 2.4 389 NR 0.07 25.2MW-26 7/3/2019 NR NR NR NR NR NRWell went dry during purging; no sample collected.MW-27 6/25/2019 3.76 NR 348 14.4 0.06 30.94MW-28 6/26/2019 4.85 5.35 308 506 0.06 26.9 Well ran dry on 6/25/19. Parameters are from last reading before it went dry, and well was sampled on 6/26/19.MW-30 7/2/2019 3.93 4.13 479 10.9 0.03 30.51MW-31 6/18/2019 5.35 2.74 127 0.6 0.1 21.05NAF-01 7/10/2019 4.29 0.85 329 NR 0.15 24.37NAF-02 6/27/2019 7.65 NR -5 NR 0.55 25.13NAF-03 6/27/2019 5.56 3.77 199 NR 0.13 27.02NAF-04 7/15/2019 5.53 NR 37 3.5 0.28 25.27NAF-06 7/11/2019 5.23 NR 232 NR 0.28 27.67NAF-07 6/27/2019 4.59 NR -45 NR 0.26 25.49NAF-08A 7/15/2019 5.07 0.03 67 6.5 0.05 31.58NAF-08B 7/15/2019 NR NR NR NR NR NRInsufficient water for parametersNAF-09 7/2/2019 4.75 7.71 273 15.8 0.09 25.04NAF-10 7/3/2019 6.13 3.75 363 NR 0.14 26.55NAF-11B Dry NR NR NR NR NR NRDry (7/15/19)NAF-12 7/17/2019 NR NR NR NR NR NRWell is pumped daily and went dry the day prior. No parameters were recorded.PIW-1D 7/19/2019 4.09 NR 420 9 0.21 20.77PIW-1S Dry NR NR NR NR NR NRDry (7/19/19)PIW-2D 9/12/2019 6.5 NR 6.9 NR 0.12 26.5Well to be redevelopedPIW-3D 7/18/2019 4.73 NR 44 0.3 0.1 19.55PIW-4D 9/11/2019 5.48 0.08 -40.5 285 0.06 18.7Well to be redevelopedPIW-5S 7/19/2019 4.54 0.94 369 NR 0.12 21.22PIW-6S 7/17/2019 5.73 NR 120 19.3 0.09 21.5PIW-7D 7/19/2019 4.38 0.15 2 NR 0.09 19.88PIW-7S 7/19/2019 5.94 NR -109 3.5 0.14 21.59PIW-8D 7/19/2019 5.67 NR 181 8.4 0.21 20.2TR0795Page 1 of 3October 2019 TABLE A2GROUNDWATER FIELD PARAMETERSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Well ID Sampling Date pH stable DO stable (mg/L) Redox stable (mV) Turbididty stable (NTU) Spec. Cond. Stable (mS/cm)Temp. stable (°C)Notes PIW-9D 7/23/2019 5.64 0.25 54 NR 0.14 20.31PIW-9S 7/18/2019 4.66 0.73 131 9.5 0.07 30.81PIW-10DR 9/10/2019 5.84 0.16 -290 12.6 0.22 23.6PIW-10S 7/22/2019 4.83 2.8 360 NR 0.05 27.31PW-01 9/9/2019 4.68 6.42 169.7 1.87 0.05 23.06PW-02 9/11/2019 5.25 1.8 126.9 378 0.15 22.2Well to be redevelopedPW-03 9/11/2019 6.55 0.51 57 >1000 0.34 28.33Well to be redevelopedPW-04 9/11/2019 5.64 0 21.1 439* 0.32 30.02Well to be redevelopedPW-05 9/9/2019 6.58 3.17 48 1.49 0.1 23.08PW-06 9/10/2019 5.67 1.32 29 14.6 0.09 21.18PW-07 9/13/2019 3.03 4.86 406 307 0.04 27.07 Well ran dry on 9/12/19. Parameters are from last reading before it went dry, and well was sampled on 9/13/19. Well to be redevelopedPW-09 9/11/2019 9.69 0.4 -70 52.9 0.2 19.18Well to be redevelopedPW-10R 9/19/2019 6.64 3.92 -315.9 228 0.13 18.6Well to be redevelopedPW-11 9/10/2019 5.42 0.08 -176.1 26.1 0.38 19.3PW-12 9/11/2019 5.56 0.07 -76.6 >1000 0.06 21.5Well to be redevelopedPW-13 9/10/2019 6.66 0.12 19.9 >1000 0.14 25.65Well to be redevelopedPW-14 9/11/2019 4.83 0.42 147.5 5.83 0.16 23.24PW-15R 9/19/2019 9.18 0.09 -500 18.3 0.32 21.9Well to be redevelopedPZ-11 7/16/2019 6.04 0.46 -43 6.6 0.11 26.56PZ-12 7/11/2019 4.18 5.41 321 NR 0.08 29.23PZ-13 6/25/2019 5.1 3.73 243 NR 0.05 24.96PZ-14 7/3/2019 NR NR NR NR NR NR Well was pumped dry on 7/2/19 and sampled the following day. Insufficient water for parameters.PZ-15 6/25/2019 4.3 3.66 382 NR 0.04 26.56PZ-17 Dry NR NR NR NR NR NRDry (7/2/2019)PZ-19R 7/1/2019 7.14 NR -73 1.6 0.36 24.3PZ-20R 7/1/2019 7.12 NR -80 NR 0.3 25.18PZ-21R 7/1/2019 5.58 NR -33 NR 0.17 27.61PZ-22 7/23/2019 4.5 NR 88 NR 0.11 22.68PZ-24 6/25/2019 4.24 3.05 397 NR 0.12 30.64PZ-25 Dry NR NR NR NR NR NRDry (7/2/2019)PZ-26 6/25/2019 5.49 2.83 206 NR 0.26 25.9PZ-27 6/25/2019 6.41 0.01 90 39.8 0.17 24.37PZ-28 6/25/2019 4.52 1.2 201 NR 0.14 24.49PZ-29 6/21/2019 5.96 NR 39 NR 0.16 23.03PZ-31 6/21/2019 4.49 3.34 276 NR 0.1 21.96PZ-32 6/21/2019 5.29 2.6 246 NR 0.11 22.54PZ-33 6/19/2019 5.07 0.11 243 NR 0.12 31.04PZ-34 6/19/2019 5.1 0.88 246 NR 0.13 31.34PZ-35 7/2/2019 5.67 NR -66 NR 0.17 22.82SMW-01 6/25/2019 3.82 2.52 326 5.3 0.07 26.76SMW-02 7/17/2019 3.12 0.25 236 97.1 1.18 26.01 Well ran dry on 7/16/19. Parameters are from last reading before it went dry, and well was sampled on 7/17/19.SMW-05 Dry NR NR NR NR NR NRDry (7/2/2019)SMW-05P 7/25/2019 4.91 8.23 413 NR 0.13 25.71SMW-06 Dry NR NR NR NR NR NRDry (7/16/2019)SMW-07 7/8/2019 3.75 4.87 445 NR 0.3 29.01SMW-08B 7/16/2019 4.31 NR 365 NR 0.16 26.48SMW-09 7/11/2019 4.65 NR 185 NR 0.29 24.27SMW-10 6/26/2019 6.26 0.25 101 NR 0.07 24.09SMW-11 6/26/2019 3.73 2.76 500 NR 0.05 20.56SMW-12 7/11/2019 3.54 NR 140 NR 0.2 22.35BLADEN-1S Dry NR NR NR NR NR NRBLADEN-1D 8/27/2019 9.99 0.07 -335.6 11.5 206 19.9BLADEN-2S 8/27/2019 6.11 1.29 13 44.8 123 25.11BLADEN-2D 8/27/2019 11.12 1.34 -148.1 6.17 52.5 22.65BLADEN-3S 8/28/2019 5.84 1.93 -56.4 9.8 39 25.53BLADEN-3D 8/28/2019 5.8 0.05 -97.8 110 101 21.12BLADEN-4S 8/28/2019 5.38 0.27 -58.7 NR 65 27.41Turbidity instrument lamp malfunction. Well to be resampledBLADEN-4D 8/28/2019 6.35 0.08 -373.5 NR 411 23.69 Turbidity instrument lamp malfunction at 1530 prior to sampling. Last turbidity value recorded is 37 NTUs. Well to be resampledROBESON-1S 9/12/2019 5.54 4.39 -68.5 6.02 51.3 24.3Well to be redevelopedTR0795Page 2 of 3October 2019 TABLE A2GROUNDWATER FIELD PARAMETERSChemours Fayetteville Works, North CarolinaGeosyntec Consultants NC P.C.Well ID Sampling Date pH stable DO stable (mg/L) Redox stable (mV) Turbididty stable (NTU) Spec. Cond. Stable (mS/cm)Temp. stable (°C)Notes ROBESON-1D 9/12/2019 6.64 0.05 -409 515.4 115 24.4 suspect turbidity instrument issue, purge water is clear. Well to be redeveloped and resampledCUMBERLAND-1S 9/16/2019 5.92 0.51 32.3 2.22 137 23.66CUMBERLAND-1D 9/16/2019 6.65 0.06 -283 14.8 182.4 22CUMBERLAND-2S 9/16/2019 5.08 1.43 63.7 0.9 55.9 23.3CUMBERLAND-2D 9/16/2019 7.08 0.25 -212.3 211 121 22.23Well to be re-developed and re-sampledCUMBERLAND-3S 9/16/2019 6.73 0.08 -401.6 49.7 242.9 25.1CUMBERLAND-3D 9/16/2019 7.25 0.19 -180.1 6.85 366 23.25CUMBERLAND-4S 9/16/2019 4.49 0.37 149.1 4.38 59 28.14Well to be redevelopedCUMBERLAND-4D 9/16/2019 5.91 0.1 -345.3 36.2 100.8 22.9Well to be redevelopedCUMBERLAND-5S 9/16/2019 6.48 0.37 -173.4 12.6 305 24.31Well to be redevelopedCUMBERLAND-5D 9/16/2019 6.35 0.08 -431 35.1 183.6 22.5Notes:° C - celsiusmg/L - milligram per litermS/cm - millisiemens per centimeter mV - millivoltNTU - nephelometric turbidity unitsNR - not recordedTR0795Page 3 of 3October 2019 TR0795 APPENDIX B HPT Raw Data File:HP-01.HPTDate:06/13/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045047Depth (ft)50 1000 140EC (mS/m)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)100 200 30030 340HPT Flow Max (mL/min)500 100Corr. HPT Press. (psi)500 110Est. K (ft/day) File:HP-02.HPTDate:06/13/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045505560063Depth (ft)51015219EC (mS/m)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)200 300 40090 450HPT Flow Max (mL/min)500 100Corr. HPT Press. (psi)500 100Est. K (ft/day) File:HP-03.HPTDate:06/13/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec5101520253035038Depth (ft)20 40 60279EC (mS/m)5010010120HPT Press. Max (psi)100 20030 320HPT Flow Max (mL/min)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-03.HPTDate:06/13/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec5101520253035038Depth (ft)10 20 30 40 50 60 70 80090Est. K (ft/day) File:HP-04.HPTDate:06/14/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec246810121416182022242628303234035Depth (ft)10 20327EC (mS/m)5010010120HPT Press. Max (psi)100 200 30040 340HPT Flow Max (mL/min)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-04.HPTDate:06/14/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec246810121416182022242628303234035Depth (ft)102030405060072Est. K (ft/day) File:HP-05.HPTDate:06/14/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540042Depth (ft)1000 200EC (mS/m)5010010120HPT Press. Max (psi)100 20040 320HPT Flow Max (mL/min)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-05.HPTDate:06/14/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540042Depth (ft)102030405060063Est. K (ft/day) File:HP-06.HPTDate:06/14/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045048Depth (ft)500 100EC (mS/m)5010010120HPT Press. Max (psi)100 200 30050 340HPT Flow Max (mL/min)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-06.HPTDate:06/14/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045048Depth (ft)1020304050060Est. K (ft/day) File:HP-07.HPTDate:06/17/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec1234567891011121314015Depth (ft)4682.4 9.3EC (mS/m)20 2515 32HPT Press. Max (psi)240 260231 279HPT Flow Max (mL/min)20 2514 32HPT Press. Max (psi)20 2514 32Abs. Piezometric Pressure (psi)510013Corr. HPT Press. (psi) File:HP-07.HPTDate:06/17/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec1234567891011121314015Depth (ft)50556065704874Est. K (ft/day) File:HP-08.HPTDate:06/17/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540041Depth (ft)50 1000 130EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 300HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-08.HPTDate:06/17/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540041Depth (ft)10 20 30 40 50060Est. K (ft/day) File:HP-9.HPTDate:06/11/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045049Depth (ft)50 1000 130EC (mS/m)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)100 20040 300HPT Flow Max (mL/min)500 110Corr. HPT Press. (psi)50 1000 140Est. K (ft/day) File:HP-10.HPTDate:06/11/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540046Depth (ft)500 100EC (mS/m)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)100 20040 330HPT Flow Max (mL/min)500 100Corr. HPT Press. (psi)500 110Est. K (ft/day) File:HP-11.HPTDate:06/11/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045050Depth (ft)20141EC (mS/m)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)100 20040 290HPT Flow Max (mL/min)500 100Corr. HPT Press. (psi)500 100Est. K (ft/day) File:HP-12.HPTDate:06/12/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec5101520253035404550056Depth (ft)1000 200EC (mS/m)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)100 200 30040 420HPT Flow Max (mL/min)500 110Corr. HPT Press. (psi)500 100Est. K (ft/day) File:HP-13.HPTDate:06/12/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec5101520253035404550053Depth (ft)50 100 1500 170EC (mS/m)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)100 2000 330HPT Flow Max (mL/min)500 110Corr. HPT Press. (psi)500 100Est. K (ft/day) File:HP-14.HPTDate:06/12/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045047Depth (ft)200 4000 460EC (mS/m)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)100 20040 310HPT Flow Max (mL/min)500 110Corr. HPT Press. (psi)500 110Est. K (ft/day) File:HP-15.HPTDate:06/12/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045050Depth (ft)20 40156EC (mS/m)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)100 20040 330HPT Flow Max (mL/min)50090Corr. HPT Press. (psi)500 110Est. K (ft/day) File:HP-16.HPTDate:06/13/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045051Depth (ft)50 100 1500 170EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 330HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 110Corr. HPT Press. (psi) File:HP-16.HPTDate:06/13/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045051Depth (ft)10 20 30 40 50 60 70 80 900100Est. K (ft/day) File:HP-17.HPTDate:06/17/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec5101520253035039Depth (ft)50 1000 150EC (mS/m)5010010120HPT Press. Max (psi)100 200 30040 340HPT Flow Max (mL/min)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)500 110Corr. HPT Press. (psi) File:HP-17.HPTDate:06/17/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec5101520253035039Depth (ft)10 20 30 40 50 60 70 80090Est. K (ft/day) File:HP-18.HPTDate:06/17/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540046Depth (ft)50 1000 130EC (mS/m)5010010120HPT Press. Max (psi)100 20040 310HPT Flow Max (mL/min)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-18.HPTDate:06/17/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540046Depth (ft)20 40 60 80 100 120 140 1600170Est. K (ft/day) File:HP-19.HPTDate:06/18/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045048Depth (ft)50090EC (mS/m)50 10010 120HPT Press. Max (psi)200100 320HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-19.HPTDate:06/18/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045048Depth (ft)20 40 60 80 100 120 140 1600170Est. K (ft/day) File:HP-20.HPTDate:06/18/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540046Depth (ft)50 1000 120EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 330HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-20.HPTDate:06/18/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540046Depth (ft)20 40 60 80 100 120 140 1600170Est. K (ft/day) File:HP-21.HPTDate:06/18/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045048Depth (ft)500 100EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 310HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 110Corr. HPT Press. (psi) File:HP-21.HPTDate:06/18/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045048Depth (ft)20 40 60 80 100 120 140 1600170Est. K (ft/day) File:HP-22.HPTDate:06/18/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec5101520253035039Depth (ft)50090EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 300HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-22.HPTDate:06/18/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec5101520253035039Depth (ft)10 20 30 40 50 60 70 80 900100Est. K (ft/day) File:HP-23.HPTDate:06/19/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec246810121416182022242628303234036Depth (ft)20 40561EC (mS/m)50 10010 120HPT Press. Max (psi)200 300130 330HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-23.HPTDate:06/19/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec246810121416182022242628303234036Depth (ft)20 40 60 80 100 120 140 1600170Est. K (ft/day) File:HP-24.HPTDate:06/19/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec2468101214161820222426283032034Depth (ft)20 40146EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 320HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-24.HPTDate:06/19/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec2468101214161820222426283032034Depth (ft)10 20 30 40 50 60 70 80 900100Est. K (ft/day) File:HP-25.HPTDate:06/19/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540046Depth (ft)500 110EC (mS/m)50 10010 120HPT Press. Max (psi)200 30060 440HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 110Corr. HPT Press. (psi) File:HP-25.HPTDate:06/19/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540046Depth (ft)20 40 60 80 100 120 1400160Est. K (ft/day) File:HP-26.HPTDate:06/20/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540045Depth (ft)20 40 60373EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 320HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-26.HPTDate:06/20/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540045Depth (ft)20 40 60 80 100 120 140 1600170Est. K (ft/day) File:HP-27.HPTDate:06/19/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540045Depth (ft)50 1000 120EC (mS/m)5010010120HPT Press. Max (psi)100 200 30040 420HPT Flow Max (mL/min)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)500 110Corr. HPT Press. (psi) File:HP-27.HPTDate:06/19/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540045Depth (ft)10 20 30 40 50 60 70 80 900100Est. K (ft/day) File:HP-28.HPTDate:06/20/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540044Depth (ft)10 20126EC (mS/m)5010010120HPT Press. Max (psi)100 20050 330HPT Flow Max (mL/min)5010010120HPT Press. Max (psi)5010010120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-28.HPTDate:06/20/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540044Depth (ft)20 40 60 80 100 120 140 1600170Est. K (ft/day) File:HP-29.HPTDate:06/20/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045047Depth (ft)1000 200EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 330HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 100Corr. HPT Press. (psi) File:HP-29.HPTDate:06/20/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045047Depth (ft)10 20 30 40 50 60 70 80 90 1000110Est. K (ft/day) File:HP-30.HPTDate:06/21/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540045Depth (ft)10 20124EC (mS/m)50 10010 120HPT Press. Max (psi)200 30080 340HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)500 110Corr. HPT Press. (psi) File:HP-30.HPTDate:06/21/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec510152025303540045Depth (ft)10 20 30 40 50 60 70 80 900100Est. K (ft/day) File:HP-32.HPTDate:06/20/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045047Depth (ft)20 40353EC (mS/m)50 10010 120HPT Press. Max (psi)100 20040 310HPT Flow Max (mL/min)50 10010 120HPT Press. Max (psi)50 10010 120Abs. Piezometric Pressure (psi)50090Corr. HPT Press. (psi) File:HP-32.HPTDate:06/20/19Location:Fayetteville, NCCompany:CASCADEProject ID:ChemoursOperator:Nathan MClient:Geosyntec51015202530354045047Depth (ft)20 40 60 80 100 120 140 1600170Est. K (ft/day) TR0795 APPENDIX C Interpreted HPT Logs Lithologicdescriptions fromhistorical log byKaren Teague(Parsons) loggedNovember, 2017.Corresponds toHP-02. Drilling rods usedas isolation casingat 16' and at 75' Fine grained SAND (SP); light gray; loose; damp Fine grained Silty SAND (SM); light brown; loose; damp Fine grained SAND (SP); yellowish brown; loose; damp CLAY with mica (CL); gray; firm Fine grained SAND (SP); light gray and light brown; damp (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:11/19/2017 to 11/20/2017 GEOLOGIST:Karen Teague (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Chris Ruffer DRILLING METHOD:Sonic RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:BCA-1 SAMPLING METHOD:Dual Tube NORTHING:399780.058 EASTING:2050662.219 GROUND ELEVATION:143.263 (feet NAVD88) TOC ELEVATION:146.297 (feet NAVD88) TOTAL WELL DEPTH:10 ft TOTAL BORING DEPTH:135 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 135 ft bgs Page 1 of 6 Lithologic Description PatternElev.(ft,NAVD88)140 135 130 125 120 Depth(ft)-5 -10 -15 -20 Fine grained SAND (SP); light gray and light brown; damp(continued) CLAY (CL); black; stiff Fine grained SAND (SP); purple and light gray; damp; layers oflight brown Medium grained SAND (SP); purple and light gray; loose; moist (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:11/19/2017 to 11/20/2017 GEOLOGIST:Karen Teague (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Chris Ruffer DRILLING METHOD:Sonic RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:BCA-1 SAMPLING METHOD:Dual Tube NORTHING:399780.058 EASTING:2050662.219 GROUND ELEVATION:143.263 (feet NAVD88) TOC ELEVATION:146.297 (feet NAVD88) TOTAL WELL DEPTH:10 ft TOTAL BORING DEPTH:135 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 135 ft bgs Page 2 of 6 Lithologic Description PatternElev.(ft,NAVD88)115 110 105 100 95 Depth(ft)-30 -35 -40 -45 HPT/EC boringterminated at 62.75' depth bgs due torefusal. Medium grained SAND (SP); purple and light gray; loose; moist(continued) Fine grained SAND (SP); white; loose; damp Medium grained SAND (SP); light gray and light brown; loose;wet CLAY (CL); dark gray; stiff Medium grained SAND (SP); medium gray; loose; wet Medium grained SAND (SP); light brown; loose; wet CLAY (CL); dark gray; stiff; with thin fine grained sand partingsand mica (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:11/19/2017 to 11/20/2017 GEOLOGIST:Karen Teague (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Chris Ruffer DRILLING METHOD:Sonic RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:BCA-1 SAMPLING METHOD:Dual Tube NORTHING:399780.058 EASTING:2050662.219 GROUND ELEVATION:143.263 (feet NAVD88) TOC ELEVATION:146.297 (feet NAVD88) TOTAL WELL DEPTH:10 ft TOTAL BORING DEPTH:135 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 135 ft bgs Page 3 of 6 Lithologic Description PatternElev.(ft,NAVD88)90 85 80 75 70 Depth(ft)-55 -60 -65 -70 CLAY (CL); dark gray; stiff; with thin fine grained sand partingsand mica (continued) Fine to medium grained SAND (SP); gray; wetCLAY (CL); dark gray; stiff Medium grained CLAY and clayey sand (CL); dark gray; hard;wet (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:11/19/2017 to 11/20/2017 GEOLOGIST:Karen Teague (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Chris Ruffer DRILLING METHOD:Sonic RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:BCA-1 SAMPLING METHOD:Dual Tube NORTHING:399780.058 EASTING:2050662.219 GROUND ELEVATION:143.263 (feet NAVD88) TOC ELEVATION:146.297 (feet NAVD88) TOTAL WELL DEPTH:10 ft TOTAL BORING DEPTH:135 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 135 ft bgs Page 4 of 6 Lithologic Description PatternElev.(ft,NAVD88)65 60 55 50 45 Depth(ft)-80 -85 -90 -95 Medium grained CLAY and clayey sand (CL); dark gray; hard;wet (continued) CLAY (CL); dark gray; hard CLAY (CL); light gray; very hard (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:11/19/2017 to 11/20/2017 GEOLOGIST:Karen Teague (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Chris Ruffer DRILLING METHOD:Sonic RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:BCA-1 SAMPLING METHOD:Dual Tube NORTHING:399780.058 EASTING:2050662.219 GROUND ELEVATION:143.263 (feet NAVD88) TOC ELEVATION:146.297 (feet NAVD88) TOTAL WELL DEPTH:10 ft TOTAL BORING DEPTH:135 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 135 ft bgs Page 5 of 6 Lithologic Description PatternElev.(ft,NAVD88)40 35 30 25 20 Depth(ft)-105 -110 -115 -120 CLAY (CL); light gray; very hard (continued) End of Boring at 135.0 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:11/19/2017 to 11/20/2017 GEOLOGIST:Karen Teague (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Chris Ruffer DRILLING METHOD:Sonic RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:BCA-1 SAMPLING METHOD:Dual Tube NORTHING:399780.058 EASTING:2050662.219 GROUND ELEVATION:143.263 (feet NAVD88) TOC ELEVATION:146.297 (feet NAVD88) TOTAL WELL DEPTH:10 ft TOTAL BORING DEPTH:135 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 135 ft bgs Page 6 of 6 Lithologic Description PatternElev.(ft,NAVD88)15 10 Depth(ft)-130 -135 Lithologicdescriptions fromhistorical log byTracey Ovbey(Parsons) loggedDecember, 2005.Corresponds toHP-04. Silty CLAY (CL-ML); dark brown; soft SILT with trace clay (ML); brown; dry Silty CLAY (CL-ML); brown; stiff; dry Silty CLAY (CL-ML); brown; soft; moist Silty CLAY (CL-ML); orangeish brown; soft; moist Silty CLAY (CL-ML); light brown; medium stiff; dry Silty CLAY (CL-ML); light brown; medium stiff Clayey SAND (SC); light orangeish brown; medium soft; moist Sandy CLAY (CLS); grayish orange; medium soft Medium grained SAND (SP); light gray SAND (SP); grayish orange; medium soft; with stripes of darkorange and yellowMedium grained SAND (SP); orange; damp; with stripes of darkorange and yellowFine to medium grained SAND (SP); light grayish white; wetFine to medium grained SAND (SP); tan; wet; spots of orange Fine to medium grained SAND (SP); light orangeish tan; wet;spots of brighter orange SAND (SP); orange; with water (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:12/21/2005 to 1/16/2006 GEOLOGIST:Tracy Ovbey DRILLING CONTRACTOR:Gregg Drilling DRILLER NAME:Anthony Frye DRILLING METHOD: N/A RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:LTW-01 SAMPLING METHOD:Dual Tube NORTHING:399565.75 EASTING:2052148.31 GROUND ELEVATION:51.22 (feet NAVD88) TOC ELEVATION:53.83 (feet NAVD88) TOTAL WELL DEPTH:26 ft TOTAL BORING DEPTH:28 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 34.6 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)-5 -10 -15 -20 HPT/EC boringterminated at 34.6'depth bgs. Fine to medium grained SAND (SP); gray; wet; layers of black,crumbly organic material (continued) CLAY (CL); light gray; stiff LTW-01 soil boring terminated at 26.0 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 34.6 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:12/21/2005 to 1/16/2006 GEOLOGIST:Tracy Ovbey DRILLING CONTRACTOR:Gregg Drilling DRILLER NAME:Anthony Frye DRILLING METHOD: N/A RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:LTW-01 SAMPLING METHOD:Dual Tube NORTHING:399565.75 EASTING:2052148.31 GROUND ELEVATION:51.22 (feet NAVD88) TOC ELEVATION:53.83 (feet NAVD88) TOTAL WELL DEPTH:26 ft TOTAL BORING DEPTH:28 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 34.6 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)25 20 Depth(ft)-30 Lithologicdescriptions fromhistorical log byTracey Ovbey(Parsons) loggedDecember, 2005.Corresponds toHP-06. Silty CLAY (CL-ML); brown; soft; slightly less moist and morecrumbly at 4 ft Silty CLAY (CL-ML); brown; stiff; dry; crumbly Sandy CLAY (CLS); orangeish brown; soft; damp Sandy CLAY (CLS); orangeish brown; soft; damp CLAY (CH); orangeish brown; medium soft; with spots of lightgray CLAY (CH); orangeish brown; medium soft; with spots of light gray Coarse grained SAND (SP); orange; wet CLAY some sand (CL); dark gray CLAY (CL); dark gray; stiff to stiff CLAY (CL); dark gray; stiff (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:12/20/2005 to 1/16/2006 GEOLOGIST:Tracy Ovbey DRILLING CONTRACTOR:Gregg Drilling DRILLER NAME:Anthony Frye DRILLING METHOD: N/A RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:LTW-02 SAMPLING METHOD:Dual Tube NORTHING:398848.97 EASTING:2052352.87 GROUND ELEVATION:50.03 (feet NAVD88) TOC ELEVATION:52.48 (feet NAVD88) TOTAL WELL DEPTH:38 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 47.8 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)45 40 35 30 Depth(ft)-5 -10 -15 -20 CLAY (CL); dark gray; stiff (continued) CLAY (CL); dark gray; stiff Medium to coarse grained SAND (SP); damp Medium grained SAND (SP); damp Medium grained SAND (SP); dark gray; wet Medium grained SAND (SP); dark gray; wet; spots of mediumsoft clay Sandy CLAY (CLS); light gray; medium dense; sticky End of Boring at 47.8 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:12/20/2005 to 1/16/2006 GEOLOGIST:Tracy Ovbey DRILLING CONTRACTOR:Gregg Drilling DRILLER NAME:Anthony Frye DRILLING METHOD: N/A RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:LTW-02 SAMPLING METHOD:Dual Tube NORTHING:398848.97 EASTING:2052352.87 GROUND ELEVATION:50.03 (feet NAVD88) TOC ELEVATION:52.48 (feet NAVD88) TOTAL WELL DEPTH:38 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 47.8 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)20 15 10 5 Depth(ft)-30 -35 -40 -45 Lithologicdescriptions fromhistorical log byTracey Ovbey(Parsons) loggedDecember, 2005.Corresponds toHP-09. Double arrowsindicate instancesof HPT/EC responses thatexceed limits. Silty CLAY (CL-ML); brown; soft; moist Silty CLAY (CL-ML); light brown; dry; crumbly Silty CLAY (CL-ML); light brown; medium stiff; dry Silty CLAY (CL-ML); orangeish brown; medium stiff; dry Silty CLAY (CL-ML); orangeish brown; medium stiff; dry Silty CLAY (CL-ML); orangeish brown; medium soft; moist;spots of soft light gray clay CLAY (CL); orangeish brown; medium soft; moist; streaks ofsoft, light gray clay Sandy CLAY (CLS); orangeish brown; soft; moist; streaks ofsoft, light gray clay (NO CORE) Fine to medium grained SAND (SP); orange; wet Medium grained SAND (SP); light gray; wetMedium grained SAND (SP); orange; wet (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:12/22/2005 to 12/22/2005 GEOLOGIST:Tracy Ovbey DRILLING CONTRACTOR:Gregg Drilling DRILLER NAME:Anthony Frye DRILLING METHOD: N/A RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:LTW-04 SAMPLING METHOD:Dual Tube NORTHING:397280.23 EASTING:2052583.1 GROUND ELEVATION:49.34 (feet NAVD88) TOC ELEVATION:51.86 (feet NAVD88) TOTAL WELL DEPTH:27 ft TOTAL BORING DEPTH:30 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 48.4 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)45 40 35 30 25 Depth(ft)-5 -10 -15 -20 >>>>>>>>>>>>>>>>>>>>>>>>>> Medium grained SAND (SP); orange; wet (continued) Coarse grained SAND (SP); reddish orange; wet Coarse grained SAND (SP); orange; wet; spots of very soft clay Medium grained SAND (SP); orange; wet Medium grained SAND (SP); light tan LTW-04 soil boring terminated at 30.0 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 48.4 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:12/22/2005 to 12/22/2005 GEOLOGIST:Tracy Ovbey DRILLING CONTRACTOR:Gregg Drilling DRILLER NAME:Anthony Frye DRILLING METHOD: N/A RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:LTW-04 SAMPLING METHOD:Dual Tube NORTHING:397280.23 EASTING:2052583.1 GROUND ELEVATION:49.34 (feet NAVD88) TOC ELEVATION:51.86 (feet NAVD88) TOTAL WELL DEPTH:27 ft TOTAL BORING DEPTH:30 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 48.4 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)20 15 10 5 Depth(ft)-30 -35 -40 -45 >> Lithologicdescriptions fromhistorical log byTracey Ovbey(Parsons) loggedDecember, 2005.Corresponds toHP-11. Silty CLAY brown; soft; moist Silty CLAY brown; dry; crumbly Silty CLAY brown; dry; crumbly Silty CLAY brown; dry; spots of light brown Silty CLAY orangeish brown; dry; spots of light gray Silty CLAY orangeish brown and light gray; medium soft; moist CLAY orangeish brown; medium stiff; moist; large streaks ofmedium soft light grey clay Silty CLAY brown; soft; spots of soft light gray clay Silty CLAY brown; medium soft; bands of soft light gray clay (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:12/21/2005 to 12/21/2005 GEOLOGIST:Tracy Ovbey DRILLING CONTRACTOR:Gregg Drilling DRILLER NAME:Anthony Frye DRILLING METHOD: N/A RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:LTW-05 SAMPLING METHOD:Dual Tube NORTHING:396431.66 EASTING:2052737.17 GROUND ELEVATION:49.29 (feet NAVD88) TOC ELEVATION:52.01 (feet NAVD88) TOTAL WELL DEPTH:40 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 49.05 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)45 40 35 30 25 Depth(ft)-5 -10 -15 -20 Silty CLAY brown; medium soft; bands of soft light gray clay(continued) CLAY light gray; very soft CLAY tan; very soft; moist Medium grained SAND light gray; very soft Medium grained SAND grayish orange; wetMedium grained SAND grayish orange; wet Medium grained SAND light orangeish brown; wet LTW-05 soil boring terminated at 40.0 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 49.1 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:12/21/2005 to 12/21/2005 GEOLOGIST:Tracy Ovbey DRILLING CONTRACTOR:Gregg Drilling DRILLER NAME:Anthony Frye DRILLING METHOD: N/A RIG TYPE:N/A BOREHOLE DIA:6" BOREHOLE ID:LTW-05 SAMPLING METHOD:Dual Tube NORTHING:396431.66 EASTING:2052737.17 GROUND ELEVATION:49.29 (feet NAVD88) TOC ELEVATION:52.01 (feet NAVD88) TOTAL WELL DEPTH:40 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 49.05 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)20 15 10 5 Depth(ft)-30 -35 -40 -45 Hand auger to 5'.Corresponds toHP-13. CLAY with sand (CL); reddish brown with gray; stiff; moist Silty SAND (SW-SM); orangeish brown to light brown; moist;homogenous Fine to medium grained Silty SAND (SW-SC); gray; damp;mm-scale interlayers of gray silty clay CLAY trace gravel (CL); black and gray; very stiff; moist;medium plasticity (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/24/2019 to 6/24/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-10 SAMPLING METHOD:Dual Tube NORTHING:395104.674 EASTING:2052297.041 GROUND ELEVATION:73.304 (feet NAVD88) TOC ELEVATION:76.451 (feet NAVD88) TOTAL WELL DEPTH:7 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 1 of 3 Lithologic Description PatternElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)0 -5 -10 -15 -20 Double arrowsindicate instancesof HPT/EC responses thatexceed limits. CLAY trace gravel (CL); black and gray; very stiff; moist;medium plasticity (continued) CLAY trace fine to medium sand (CL); black and gray; stiff;moist Medium to coarse grained SAND (SP); black and gray; loose;wet CLAY (CL); black and gray; stiff; moist; mica-rcih interlayer at31' (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/24/2019 to 6/24/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-10 SAMPLING METHOD:Dual Tube NORTHING:395104.674 EASTING:2052297.041 GROUND ELEVATION:73.304 (feet NAVD88) TOC ELEVATION:76.451 (feet NAVD88) TOTAL WELL DEPTH:7 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 2 of 3 Lithologic Description PatternElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)-25 -30 -35 -40 -45 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> >> Lithology describedfrom sonic cores49-59' 15' of heavingsands CLAY (CL); black and gray; stiff; moist; mica-rcih interlayer at31' (continued) Medium to coarse grained SAND (SP); black and gray; mediumstiff; moist; quartz rich grains and trace mica, lignite present CLAY (CL); gray; stiff to dense; medium plasticity End of Boring at 59.0 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/24/2019 to 6/24/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-10 SAMPLING METHOD:Dual Tube NORTHING:395104.674 EASTING:2052297.041 GROUND ELEVATION:73.304 (feet NAVD88) TOC ELEVATION:76.451 (feet NAVD88) TOTAL WELL DEPTH:7 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 3 of 3 Lithologic Description PatternElev.(ft,NAVD88)25 20 15 Depth(ft)-50 -55 Hand auger to 5'.Corresponds toHP-01. Possible road fillmaterial Fine grained SAND with fine to coarse gravel (SW); angular;light brown; color transitions to gray at 3' SAND with clay (SC); black Fine to medium grained Silty SAND (SP); brown Clayey SILT with sand (CL-ML); light brown; soft; damp; Claycontent increases around 7.75' moisture content increases at13.5; mm scale sand layers CLAY (CL); light gray; very soft; wet; high plasticity CLAY (CL); light brown; very stiff; moist; 1in sand lense at 19.5ft. Fine to medium grained SAND (SW); grayish brown with lightbrown; wet; mm to cm scale clay lense (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/27/2019 to 6/27/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-1 SAMPLING METHOD:Dual Tube NORTHING:400540.611 EASTING:2051792.586 GROUND ELEVATION:50.78 (feet NAVD88) TOC ELEVATION:54.198 (feet NAVD88) TOTAL WELL DEPTH:17.8 ft TOTAL BORING DEPTH:42.5 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46.2 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Highly expansiveclay in 30-35interval sampled;Driller pushed 2.5 ftinstead of full 5' Dual tube got stuckat 40' terminateboring at 42.5' Double arrowsindicate instancesof HPT/ECresponses thatexceed limits. Fine to medium grained SAND (SW); grayish brown with lightbrown; wet; mm to cm scale clay lense (continued) Coarse grained SAND (SP); brown; subangular; wet; 4" oflignite, black platey cleavage CLAY with mica (CL); light gray; very stiff; damp; Lense of finesilty sand at 36-37.5'; mica richHighly expansive clays at 30-42.5' PIW-1 soil boring terminated at 42.5 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 46.2 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/27/2019 to 6/27/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-1 SAMPLING METHOD:Dual Tube NORTHING:400540.611 EASTING:2051792.586 GROUND ELEVATION:50.78 (feet NAVD88) TOC ELEVATION:54.198 (feet NAVD88) TOTAL WELL DEPTH:17.8 ft TOTAL BORING DEPTH:42.5 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46.2 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)25 20 15 10 5 Depth(ft)-25 -30 -35 -40 -45 >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> Hand auger to 5'.Corresponds toHP-27. Run 7" casing to 20' Fine grained Silty SAND with some organics (SW-SM); lightbrown to tannish brown; loose; moist Fine grained Silty SAND with trace mica (SP-SM); light brown;loose; dry Fine to medium grained Silty SAND (SW-SM); light brown;loose; dry to moist Fine to medium grained SAND with some clay (SW-SC);orangeish brown; loose; moist; red and brown mottlingthroughout Medium grained SAND with some mica (SW); reddish brown;loose; moist Fine grained Silty SAND (SW-SM); tannish white to light gray;loose; moistClayey SAND with silt (SP-SC); gray to dark gray; dense; moist CLAY with mica (CL); dark gray; loose/stiff; fine-grained sandyparting and trace lignite (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/15/2019 to 8/15/2019 GEOLOGIST:Brandon Wiedner (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Vern Olsen DRILLING METHOD:Sonic RIG TYPE:Terra Sonic TSI 150C BOREHOLE DIA:6" BOREHOLE ID:PIW-2 SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:50 (feet NAVD88) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:79 ft TOTAL BORING DEPTH:79 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 79 ft bgs Page 1 of 4 Lithologic Description PatternElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Double arrowsindicate instancesof HPT/ECresponses thatexceed limits. CLAY with mica (CL); dark gray; loose/stiff; fine-grained sandyparting and trace lignite (continued) Medium grained Silty SAND (SW-SM); dark gray to gray;dense; moist; oragnic rich at 28' (3" thick), clay lensesthroughout Fine grained Silty SAND with mica (SW-SM); gray to light gray;loose/dense; moist Medium grained Silty SAND (SW-SM); gray; moist to wet; micarich, orangic rich layer at 35' CLAY with silt (CL-ML); dark gray; very stiff; dry to moist; sandy parting Medium to coarse grained Silty SAND (SW-SM); dark gray tomedium gray; wet; mica rich (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/15/2019 to 8/15/2019 GEOLOGIST:Brandon Wiedner (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Vern Olsen DRILLING METHOD:Sonic RIG TYPE:Terra Sonic TSI 150C BOREHOLE DIA:6" BOREHOLE ID:PIW-2 SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:50 (feet NAVD88) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:79 ft TOTAL BORING DEPTH:79 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 79 ft bgs Page 2 of 4 Lithologic Description PatternElev.(ft,NAVD88)25 20 15 10 5 Depth(ft)-25 -30 -35 -40 -45 >>>> >> >>>> >>>> Medium to coarse grained Silty SAND (SW-SM); dark gray tomedium gray; wet; mica rich (continued) Medium grained Clayey SAND (SP-SC); medium gray; dense;moist; mica rich CLAY (CL); dark gray; hard; moist to dry Fine to medium grained Silty SAND with mica (SW-SM); darkgray to light gray; wet; mica and orgnaic rich, possibly lignite,clay lense at 54' CLAY with trace mica (CL-ML); dark gray to gray; hard; wet;medium-grained sandy parting Fine to medium grained Clayey SAND with some mica(SW-SC); dark gray; wet; clay lense at 60' and 63' (<3mm) Very fine grained CLAY (CL-ML); dark gray; stiff; moist; lightgray, very fine grained clay parting throughout Very fine to fine grained Silty SAND (SW-SM); light gray; loose;moist Sandy CLAY WITH SILT with trace mica (CL); light gray; hard;dry; laminated (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/15/2019 to 8/15/2019 GEOLOGIST:Brandon Wiedner (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Vern Olsen DRILLING METHOD:Sonic RIG TYPE:Terra Sonic TSI 150C BOREHOLE DIA:6" BOREHOLE ID:PIW-2 SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:50 (feet NAVD88) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:79 ft TOTAL BORING DEPTH:79 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 79 ft bgs Page 3 of 4 Lithologic Description PatternElev.(ft,NAVD88)0 -5 -10 -15 -20 Depth(ft)-50 -55 -60 -65 -70 Sandy CLAY WITH SILT with trace mica (CL); light gray; hard;dry; laminated (continued) End of Boring at 79.0 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/15/2019 to 8/15/2019 GEOLOGIST:Brandon Wiedner (Parsons) DRILLING CONTRACTOR:Cascade DRILLER NAME:Vern Olsen DRILLING METHOD:Sonic RIG TYPE:Terra Sonic TSI 150C BOREHOLE DIA:6" BOREHOLE ID:PIW-2 SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:50 (feet NAVD88) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:79 ft TOTAL BORING DEPTH:79 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 79 ft bgs Page 4 of 4 Lithologic Description PatternElev.(ft,NAVD88)-25 Depth(ft)-75 Hand auger to 5'.Corresponds toHP-24.SILT (ML); brown; dry; non plastic SILT with clay (CL-ML); reddish brown; hard; dry Silty CLAY with some mica (CH); gray with reddish brown;medium stiff; high plasticity Fine to medium grained SAND with some fine to mediumgravel (SW); subangular; brown; loose to medium dense; wet;Poorly-sortedFine to medium grained SAND (SP); brown; loose to mediumdense; wet; 1/2" seam of high plastic gray clay at 17.2" Fine to medium grained SAND with some mica (SP); brown;loose; wet (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/2/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Nathan Mariard DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-3 SAMPLING METHOD:Dual Tube NORTHING:399711.752 EASTING:2052088.802 GROUND ELEVATION:50.513 (feet NAVD88) TOC ELEVATION:53.315 (feet NAVD88) TOTAL WELL DEPTH:19 ft TOTAL BORING DEPTH:30 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 44.55 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Lignitic material at23-25' Fine to medium grained SAND with clay (SP-SC); dark gray;medium dense; wet; interbedded with high plastic, gray claylenses CLAY (CH); dark gray; very hard; dry; high plasticity PIW-3D soil boring terminated at 30.0 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 44.6 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/2/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Nathan Mariard DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-3 SAMPLING METHOD:Dual Tube NORTHING:399711.752 EASTING:2052088.802 GROUND ELEVATION:50.513 (feet NAVD88) TOC ELEVATION:53.315 (feet NAVD88) TOTAL WELL DEPTH:19 ft TOTAL BORING DEPTH:30 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 44.55 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)25 20 15 10 Depth(ft)-25 -30 -35 -40 Hand auger to 5'.Corresponds toHP-10.Fine to medium grained SAND with silt (SP-SM); brown tan;loose; damp Silty CLAY (CL-ML); reddish brown and light gray; firm; moist Fine grained Silty SAND (SP-SM); loose; damp from 7' Medium to coarse grained SAND (SW); brown to tannishorange; loose; wet; 3" gray clay layer from 13.75-14' CLAY with trace sand (CL); black to gray; firm; moist; tracesand at 35' (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/9/2019 to 7/9/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-5 SAMPLING METHOD:Dual Tube NORTHING:398520.381 EASTING:2051951.26 GROUND ELEVATION:72.68 (feet NAVD88) TOC ELEVATION:75.188 (feet NAVD88) TOTAL WELL DEPTH:9.75 ft TOTAL BORING DEPTH:45 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 45 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)0 -5 -10 -15 -20 Double arrowsindicate instancesof HPT/ECresponses thatexceed limits. CLAY with trace sand (CL); black to gray; firm; moist; tracesand at 35' (continued) Medium to coarse grained SAND (SP); light gray; medium stiff;moist; interbedded with mm-scale clay seams from 39' to 39.5' Silty CLAY (CL-ML); dark gray to gray; medium firm; moist Fine to medium grained Silty SAND (SP-SM); dark gray to lightgray; medium to very firm; moist; interbedded with mm-scalesilty clay seams End of Boring at 45.0 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/9/2019 to 7/9/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-5 SAMPLING METHOD:Dual Tube NORTHING:398520.381 EASTING:2051951.26 GROUND ELEVATION:72.68 (feet NAVD88) TOC ELEVATION:75.188 (feet NAVD88) TOTAL WELL DEPTH:9.75 ft TOTAL BORING DEPTH:45 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 45 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)-25 -30 -35 -40 -45 >>>> >>>>>>>>>>>>>>>> >>>>>>>>>> Hand auger to 5'.Corresponds toHP-08.SILT with trace sand (ML); reddish brown; soft; dry; increasingsand fraction with depth, moist at 13.5' CLAY with silt (CH); reddish brown to olive gray; medium stiff;moist; silt lenses (15'-25.9'), increasing moisture at 24.5' (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/28/2019 to 6/28/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-6 SAMPLING METHOD:Dual Tube NORTHING:398118.144 EASTING:2052540.567 GROUND ELEVATION:49.85 (feet NAVD88) TOC ELEVATION:53.359 (feet NAVD88) TOTAL WELL DEPTH:18 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 40.6 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Double arrowsindicate instancesof HPT/ECresponses thatexceed limits. CLAY with silt (CH); reddish brown to olive gray; medium stiff;moist; silt lenses (15'-25.9'), increasing moisture at 24.5' (continued) CLAY (CH); dark gray; medium stiff; moist; homogenous SAND (SP); yellowish red and gray; medium dense; moist; dark gray clay lenses from 27'-27.2' CLAY (CH); dark gray; medium stiff; moist; medium gray sandlense at 28.6'-28.8' CLAY (CH); dense; moist; homogenous with suspected lignitelenses (<1/4") from 33'-34' CLAY with some mica (CL); medium gray; stiff; moist; thin darkgray banding PIW-3D soil boring terminated at 40.0 feet. Lithologicdescriptions not available beyond this depth.End of Boring at 40.6 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/28/2019 to 6/28/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-6 SAMPLING METHOD:Dual Tube NORTHING:398118.144 EASTING:2052540.567 GROUND ELEVATION:49.85 (feet NAVD88) TOC ELEVATION:53.359 (feet NAVD88) TOTAL WELL DEPTH:18 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 40.6 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)25 20 15 10 Depth(ft)-25 -30 -35 -40 >> Hand auger to 5'.Corresponds toHP-10.SILT with sand (ML); reddish brown to brown; medium stiff;moist CLAY (CL); medium gray with yellowish red; very soft; moist Fine grained SAND with silt (SP-SM); reddish brown with gray;moist CLAY with trace silt (CL); gray; very soft; moist; with yellowishto red streakingSAND with silt (SP-SM); gray to yellowish red; loose; moist;with some stratification between gray and yellowish red sands,gray sands ~2" thick Fine to medium grained SAND (SP); light gray yellowish red;loose; wet; with small lens of silty dark gray sand (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/25/2019 to 6/25/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-7 SAMPLING METHOD:Dual Tube NORTHING:396787.693 EASTING:2052595.368 GROUND ELEVATION:45.778 (feet NAVD88) TOC ELEVATION:48.597 (feet NAVD88) TOTAL WELL DEPTH:29 ft TOTAL BORING DEPTH:50 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 50 ft bgs Page 1 of 3 Lithologic Description PatternElev.(ft,NAVD88)45 40 35 30 25 Depth(ft)0 -5 -10 -15 -20 Fine to medium grained SAND (SP); light gray yellowish red;loose; wet; with small lens of silty dark gray sand (continued) CLAY (CL); dark gray; medium stiff; moist; interbedded withthin (0.5" thick) bands of dark gray clayFine grained SAND (SP-SC); yellowish red to gray; mediumdense; moist; with stratified with thin (.5") bands of dark grayclay Fine to medium grained SAND (SP); dark gray; medium dense;wet; homogenous, with thin (0.5") band of hard black material,possibly lignite Fine grained SAND and silt (SP-SM); gray; medium dense;moist; with thick bands of dark gray material Fine grained SAND and silt (CL-ML); medium dense; moist;increasing clay fraction with depth CLAY (CH); medium gray; moist; homogenous CLAY with trace sand (CH); greenish gray; very stiff; dry; thinbanding of darker gray material; visible micaceous grains, withother dark gray mineral banding visible in some places (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/25/2019 to 6/25/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-7 SAMPLING METHOD:Dual Tube NORTHING:396787.693 EASTING:2052595.368 GROUND ELEVATION:45.778 (feet NAVD88) TOC ELEVATION:48.597 (feet NAVD88) TOTAL WELL DEPTH:29 ft TOTAL BORING DEPTH:50 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 50 ft bgs Page 2 of 3 Lithologic Description PatternElev.(ft,NAVD88)20 15 10 5 0 Depth(ft)-25 -30 -35 -40 -45 CLAY with trace sand (CH); greenish gray; very stiff; dry; thinbanding of darker gray material; visible micaceous grains, with other dark gray mineral banding visible in some places(continued) End of Boring at 50.0 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/25/2019 to 6/25/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-7 SAMPLING METHOD:Dual Tube NORTHING:396787.693 EASTING:2052595.368 GROUND ELEVATION:45.778 (feet NAVD88) TOC ELEVATION:48.597 (feet NAVD88) TOTAL WELL DEPTH:29 ft TOTAL BORING DEPTH:50 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 50 ft bgs Page 3 of 3 Lithologic Description PatternElev.(ft,NAVD88)Depth(ft)-50 Hand auger to 5'.Corresponds to HP-32. Silty CLAY (CL-ML); reddish brown; dry Silty CLAY (CL-ML); reddish brown with gray; soft; moist;interbedded clay and silt throughout, clay becomes moist andmore sandy at 19.5' to 20' Fine grained SAND (SP); yellowish red to reddish brown; loose;moist to wet; Black bands appear organic; fine to mediumgrained from 29'; approximately 1" band of lignite at 28' (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/26/2019 to 6/26/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-8 SAMPLING METHOD:Dual Tube NORTHING:396403.378 EASTING:2052682.019 GROUND ELEVATION:45.919 (feet NAVD88) TOC ELEVATION:48.518 (feet NAVD88) TOTAL WELL DEPTH:35.5 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46.55 ft bgs Page 1 of 2 Lithologic Description PatternElev.(ft,NAVD88)45 40 35 30 25 Depth(ft)0 -5 -10 -15 -20 Heaving sand Fine grained SAND (SP); yellowish red to reddish brown; loose;moist to wet; Black bands appear organic; fine to medium grained from 29'; approximately 1" band of lignite at 28'(continued) Fine to medium grained SAND (SP); dark gray; wet; visiblemica grains, llignite laminations at 33.1', 34.5', and 35' Increased lignitic laminations from 37.5' to 40' (~1/4" to 1.5"thick) PIW-8D soil boring terminated at 44.55 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 46.6 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/26/2019 to 6/26/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-8 SAMPLING METHOD:Dual Tube NORTHING:396403.378 EASTING:2052682.019 GROUND ELEVATION:45.919 (feet NAVD88) TOC ELEVATION:48.518 (feet NAVD88) TOTAL WELL DEPTH:35.5 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46.55 ft bgs Page 2 of 2 Lithologic Description PatternElev.(ft,NAVD88)20 15 10 5 0 Depth(ft)-25 -30 -35 -40 -45 Hand auger to 5'.Lithologydescriptions from0-40' taken fromPIW-9S. Corresponds toHP-12. Fine to medium grained SAND with silt (SP-SM); grayish brownwith reddish brown; loose; dry; trace rounded pebbles (`~2mm) CLAY (CL); gray with red; medium stiff; moist Silty CLAY (CL-ML); grayish brown with reddish brown; stiff;moist Silty SAND with trace clay (SP-SC); tannish brown; loose;moist Silty CLAY (CL-ML); reddish brown and reddish gray; soft;moist Fine to medium grained SAND (SP); tannish white; loose;moist; interbedded with mm-scale clay lenses; wet at 22.5' to23' (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/3/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-9 SAMPLING METHOD:Dual Tube NORTHING:396155.974 EASTING:2052250.911 GROUND ELEVATION:76.748 (feet NAVD88) TOC ELEVATION:79.529 (feet NAVD88) TOTAL WELL DEPTH:40 ft TOTAL BORING DEPTH:49 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 55.95 ft bgs Page 1 of 3 Lithologic Description PatternElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)0 -5 -10 -15 -20 Heaving sands CLAY with trace silt (CL); grayish black; firm; moist; trace lignite Medium to coarse grained SAND (SW); tannish white; loose;wet; intebedded with mm-scale clay lenses Coarse grained SAND (SW); blackish gray; loose; wet; 1 in claylayer at 32.5' and lignitte appears in last inch of run CLAY (CL); blackish gray; moist; with mm-scale sand layersand 0.5" lignite layer at 38' Coarse grained SAND with trace mica (SP); gray with brown;loose; wet; redoximorphic features CLAY (CL); blackish brown with black; stiff; moist; laminated Medium to coarse grained SAND with trace mica (SP); darkgray; medium dense; moist (Continued Next Page) Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/3/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-9 SAMPLING METHOD:Dual Tube NORTHING:396155.974 EASTING:2052250.911 GROUND ELEVATION:76.748 (feet NAVD88) TOC ELEVATION:79.529 (feet NAVD88) TOTAL WELL DEPTH:40 ft TOTAL BORING DEPTH:49 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 55.95 ft bgs Page 2 of 3 Lithologic Description PatternElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)-25 -30 -35 -40 -45 Double arrowsindicate instancesof HPT/ECresponses that exceed limits. Medium to coarse grained SAND with trace mica (SP); darkgray; medium dense; moist (continued) PIW-9D soil boring terminated at 49.0 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 56.0 feet bgs. Comments Electrical Conductivity (mS/m) 20 40 60 80 Corrected HPT Pressure (psi)20 40 60 80 Estimated Hydraulic Conductivity (feet/day) 20 40 60 80 BORING LOG PROJECT NAME:Additional Onsite Well Installation PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/3/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID:PIW-9 SAMPLING METHOD:Dual Tube NORTHING:396155.974 EASTING:2052250.911 GROUND ELEVATION:76.748 (feet NAVD88) TOC ELEVATION:79.529 (feet NAVD88) TOTAL WELL DEPTH:40 ft TOTAL BORING DEPTH:49 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 55.95 ft bgs Page 3 of 3 Lithologic Description PatternElev.(ft,NAVD88)25 Depth(ft)-50 -55 >>>>>> TR0795 APPENDIX D Soil Boring Logs and Well Construction Logs Hand auger to 5'Cementgrout Bentonitechips 2-inchPVCcasing Filterpack(sand)2-inchPVCscreen(0.010inch) BackfillPlug 2.0 9.0 Fine to medium grained Silty SAND (SP-SM); tan to brown;loose; moist; orangic-rich CLAY trace mica (CL); gray to brown; soft; moist; mediumplasticity Fine to medium grained Silty SAND (SP-SM); tan to orange;loose; moist; wet at 6.75' CLAY WITH SILT trace organics (CL); orangeish tan to brown;firm; moist; medium plasticity CLAY with fine sand (CH); reddish brown; firm; moist; lowplasticity; mm-layers fine-grained sand interlayers withorange laminations CLAY trace mica (CH); black to gray; very hard; moist; low tomedium plasticity End of Boring at 16.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/14/2019 to 8/14/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:James Smith DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID:Bladen-1S SAMPLING METHOD:Dual Tube NORTHING:387516.283 EASTING:2050234.779 GROUND ELEVATION:81.566 (feet NAVD88) TOC ELEVATION:81.31 (feet NAVD88) TOTAL WELL DEPTH:10.25 ft TOTAL BORING DEPTH:16 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 16 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)80 75 70 Depth(ft)-5 -10 -15 Hand auger to 5' Cementgrout 2-inchPVCcasing 4.0 7.0 10.0 Medium grained Silty SAND (SP-SM); tan to brown; loose;moist CLAY with silt (CL); gray to brown; soft; moist Medium grained Silty SAND (SP-SM); tan to brown; loose; moist; wet from 10-10.5' Silty SAND (SM); reddish brown to orange; soft; moist;laminations of orange fine-grained sand CLAY with fine sand (CL); grayish red brown; hard; moist;trace mica CLAY (CH); gray to black; stiff; moist; fat, 6" lignite layer (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/13/2019 to 8/13/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:James Smith DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID:Bladen-1D SAMPLING METHOD:Dual Tube NORTHING:387519.56 EASTING:2050248.831 GROUND ELEVATION:81.72 (feet NAVD88) TOC ELEVATION:81.52 (feet NAVD88) TOTAL WELL DEPTH:47.25 ft TOTAL BORING DEPTH:47 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 47 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)80 75 70 65 60 Depth(ft)-5 -10 -15 -20 7" casing installed Bentonite chips Filterpack(sand) 2-inchPVCscreen(0.010inch) 10.0 CLAY (CH); gray to black; stiff; moist; fat, 6" lignite layer(continued) SAND (SP); light gray to dark gray; loose; wet End of Boring at 47.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/13/2019 to 8/13/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:James Smith DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID:Bladen-1D SAMPLING METHOD:Dual Tube NORTHING:387519.56 EASTING:2050248.831 GROUND ELEVATION:81.72 (feet NAVD88) TOC ELEVATION:81.52 (feet NAVD88) TOTAL WELL DEPTH:47.25 ft TOTAL BORING DEPTH:47 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 47 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)55 50 45 40 35 Depth(ft)-30 -35 -40 -45 Hand auger to 5' Cementgrout Bentonitechips 2-inchPVCcasing Filterpack(sand) 2-inchPVCscreen(0.010inch) BackfillPlug 2.0 6.0 5.0 Fine grained Silty SAND (SP-SM); light brown to tan; loose;moist; gray laminations Medium grained Silty SAND (SC-SM); reddish brown withgray; loose; moist SAND some silt (SP-SM); tan; loose; saturated End of Boring at 22.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/16/2019 to 8/16/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:James Smith DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-2S SAMPLING METHOD:Dual Tube NORTHING:368818.784 EASTING:2042884.349 GROUND ELEVATION:143.01 (feet NAVD88) TOC ELEVATION:142.62 (feet NAVD88) TOTAL WELL DEPTH:20.25 ft TOTAL BORING DEPTH:22 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 22 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)140 135 130 125 Depth(ft)-5 -10 -15 -20 Hand auger to 5' 2.0 8.0 10.0 Fine to medium grained Silty SAND (SP-SM); whiteish tan tobrownish tan; loose; dry; organic-rich Medium grained Silty SAND (SP-SM); orangeish brown;loose; moistFine grained Clayey SAND with silt (SC); tannish gray; loose;moist Medium grained Silty SAND (SP-SM); reddish brown; loose;moist; gray laminations, coarse-grained at 12-14' Medium to coarse grained SAND (SP); whiteish tan; loose;wet; orange oxidized layers at 22-23' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/15/2019 to 8/15/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:James Smith DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-2D SAMPLING METHOD:Dual Tube NORTHING:368824.414 EASTING:2042879.777 GROUND ELEVATION:143.114 (feet NAVD88) TOC ELEVATION:142.85 (feet NAVD88) TOTAL WELL DEPTH:75.25 ft TOTAL BORING DEPTH:77 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 77 ft bgs Page 1 of 4PatternLithologic DescriptionElev.(ft,NAVD88)140 135 130 125 120 Depth(ft)-5 -10 -15 -20 Cementgrout 2-inchPVCcasing 10.0 10.0 Medium to coarse grained SAND (SP); whiteish tan; loose;wet; orange oxidized layers at 22-23' (continued) Silty SAND (SP-SM); orangeish tan with gray; loose; wet tomoist; gray laminationsLIGNITE with clay (CH); grayish black gray; soft; wet; mediumplasticity CLAY (CH); grayish black; firm; moist; medium plasticity (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/15/2019 to 8/15/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:James Smith DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-2D SAMPLING METHOD:Dual Tube NORTHING:368824.414 EASTING:2042879.777 GROUND ELEVATION:143.114 (feet NAVD88) TOC ELEVATION:142.85 (feet NAVD88) TOTAL WELL DEPTH:75.25 ft TOTAL BORING DEPTH:77 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 77 ft bgs Page 2 of 4PatternLithologic DescriptionElev.(ft,NAVD88)115 110 105 100 95 Depth(ft)-30 -35 -40 -45 Bentonitechips Filter pack(sand) 2-inchPVCscreen(0.010inch) 10.0 6.0 CLAY (CH); grayish black; firm; moist; medium plasticity(continued) Medium grained SAND trace mica (SP); grayish black; loose;moist to wet; cm-scale interlayers from 56-56.5', lignite chipsat 57', coarser from 61-75.5 (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/15/2019 to 8/15/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:James Smith DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-2D SAMPLING METHOD:Dual Tube NORTHING:368824.414 EASTING:2042879.777 GROUND ELEVATION:143.114 (feet NAVD88) TOC ELEVATION:142.85 (feet NAVD88) TOTAL WELL DEPTH:75.25 ft TOTAL BORING DEPTH:77 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 77 ft bgs Page 3 of 4PatternLithologic DescriptionElev.(ft,NAVD88)90 85 80 75 70 Depth(ft)-55 -60 -65 -70 BackfillPlug CLAY (CH); light gray to gray; firm; moist; medium plasticity End of Boring at 77.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/15/2019 to 8/15/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:James Smith DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-2D SAMPLING METHOD:Dual Tube NORTHING:368824.414 EASTING:2042879.777 GROUND ELEVATION:143.114 (feet NAVD88) TOC ELEVATION:142.85 (feet NAVD88) TOTAL WELL DEPTH:75.25 ft TOTAL BORING DEPTH:77 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 77 ft bgs Page 4 of 4PatternLithologic DescriptionElev.(ft,NAVD88)Depth(ft) Hand auger to 5'Cementgrout Bentonitechips 2-inchPVCcasing Filterpack(sand)2-inchPVCscreen(0.010inch) BackfillPlug 1.0 7.0 Fine grained SAND with silt (SP-SM); brownish orange tobrownish tan; loose; moist Coarse grained (SW); brown to orange; loose; wet Clay (CL); dark brown to gray; firm; moist; medium plasticity;fat End of Boring at 16.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/20/2019 to 8/20/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:T. Ardito DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-3S SAMPLING METHOD:Dual Tube NORTHING:396859.62 EASTING:2059014.363 GROUND ELEVATION:79.401 (feet NAVD88) TOC ELEVATION:78.84 (feet NAVD88) TOTAL WELL DEPTH:15.25 ft TOTAL BORING DEPTH:16 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 16 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)75 70 65 Depth(ft)-5 -10 -15 Hand auger to 5' Barrel stuck so run 16-26 ft run Cementgrout 2-inchPVC casing 1.0 10.0 10.0 Fine grained Silty SAND (SP-SM); orangeish red brown;loose; moist; trace organics CLAY (CH); black gray; firm; moist Medium grained SAND with silt (SP); black gray; firm; wet (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/19/2019 to 8/19/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:T. Ardito DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-3D SAMPLING METHOD:Dual Tube NORTHING:396854.291 EASTING:2059007.993 GROUND ELEVATION:79.588 (feet NAVD88) TOC ELEVATION:79.09 (feet NAVD88) TOTAL WELL DEPTH:44 ft TOTAL BORING DEPTH:46 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)-5 -10 -15 -20 Keep core at 26-36 ft and 36-46 ft Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) BackfillPlug 10.0 10.0 LIGNITE (OH); brown black; loose; dry to moist Coarse grained SAND (SP); black gray; loose; wet CLAY with fine sand (CH); black gray; firm; moist; mm-scaleinterlayers throughout SAND (SP-SM); light gray; loose; wet; mm-scale interlayers ofblack to light gray clay, mica rich CLAY (CH); black gray; firm; moist; light gray fine-grainedsand interlayer 2" brown lignite layerEnd of Boring at 46.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/19/2019 to 8/19/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:T. Ardito DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-3D SAMPLING METHOD:Dual Tube NORTHING:396854.291 EASTING:2059007.993 GROUND ELEVATION:79.588 (feet NAVD88) TOC ELEVATION:79.09 (feet NAVD88) TOTAL WELL DEPTH:44 ft TOTAL BORING DEPTH:46 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 Depth(ft)-30 -35 -40 -45 Hand auger to 5' Cementgrout Bentonitechips 2-inchPVCcasing Filterpack(sand)2-inchPVCscreen(0.010inch) 1.0 9.0 SAND (SP); brown; loose; moist; becomes tan-orange andthen beige-white with increasing depth Medium to coarse grained SAND with gravel (SW); tan towhite; loose; wet; rounded mm-scale gravel Fine grained Silty SAND (SP-SM); light gray to dark gray; soft; moist to wet; mm-scale clay layers in bottom 1", traace mica End of Boring at 15.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/21/2019 to 8/21/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:T. Ardito DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-4S SAMPLING METHOD:Dual Tube NORTHING:363260.51 EASTING:2087638.883 GROUND ELEVATION:64.645 (feet NAVD88) TOC ELEVATION:64.26 (feet NAVD88) TOTAL WELL DEPTH:15 ft TOTAL BORING DEPTH:15 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 15 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)60 55 50 Depth(ft)-5 -10 -15 Hand auger to 5' Cementgrout 1.0 10.0 10.0 Fine grained SAND (SP); brown; loose; moist; becomestan-orange, then beige-white with increased depth Coarse grained SAND with gravel (SW); white to tan; loose;wet Fine grained Silty SAND trace mica (SP-SM); tan to gray;moist to wet; becomes light to dark gray with increasingdepthRedoximorphic features- oxidized Medium to coarse grained SAND with coarse gravel (SW);brown to black; loose; wet; cm-scale coarse gravel FAT CLAY (CH); black to gray; firm; moist (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/21/2019 to 8/21/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:T. Ardito DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-4D SAMPLING METHOD:Dual Tube NORTHING:363252.434 EASTING:2087638.292 GROUND ELEVATION:64.669 (feet NAVD88) TOC ELEVATION:64.23 (feet NAVD88) TOTAL WELL DEPTH:52 ft TOTAL BORING DEPTH:52 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 52 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)60 55 50 45 40 Depth(ft)-5 -10 -15 -20 Switch to 4x62-inchPVCcasing Bentonitechips Filterpack(sand)2-inchPVC 10.0 10.0 5.0 FAT CLAY (CH); black to gray; firm; moist (continued) Fine grained Silty SAND Coarse grained SAND (SP); gray to black; loose; wet CLAY (SP-SM); gray to black; soft to firm; wet; intricatelylayered fine-grained silty sand in clay Coarse grained SAND FAT CLAY (CH); firm; moist; lignite layer at the base Coarse grained SAND (SP); gray to black; loose; wet (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/21/2019 to 8/21/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:T. Ardito DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-4D SAMPLING METHOD:Dual Tube NORTHING:363252.434 EASTING:2087638.292 GROUND ELEVATION:64.669 (feet NAVD88) TOC ELEVATION:64.23 (feet NAVD88) TOTAL WELL DEPTH:52 ft TOTAL BORING DEPTH:52 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 52 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)35 30 25 20 15 Depth(ft)-30 -35 -40 -45 screen(0.010inch) Coarse grained SAND (SP); gray to black; loose; wet(continued) End of Boring at 52.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:8/21/2019 to 8/21/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:T. Ardito DRILLING METHOD:Sonic RIG TYPE:USDOT1075864 BOREHOLE DIA:6" BOREHOLE ID: Bladen-4D SAMPLING METHOD:Dual Tube NORTHING:363252.434 EASTING:2087638.292 GROUND ELEVATION:64.669 (feet NAVD88) TOC ELEVATION:64.23 (feet NAVD88) TOTAL WELL DEPTH:52 ft TOTAL BORING DEPTH:52 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 52 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)Depth(ft) Hand auger to 5' Cementgrout Bentonitechips2-inchPVCcasing Filterpack(sand)2-inchPVCscreen(0.010inch) 2.0 10.0 6.0 Medium grained Silty SAND (SP); dark brown to gray; loose;dry Medium grained Silty SAND (SP); brown; loose; moist Medium grained Silty SAND (SW); brown; loose; moist Medium grained SAND with silt (SP); tan and white; loose;moist Fine to medium grained SAND (SP); light brown; loose; wet Medium to coarse grained SAND (SP); subangular; loose; wet Medium grained SAND (SP); light gray; loose; wet; 2"organic-rich seam at 21'; possible lignite Medium grained SAND (SP); dark gray; loose; wet End of Boring at 25.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/13/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID: Cumberland-1S SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:25 ft TOTAL BORING DEPTH:25 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 25 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)105 100 95 90 Depth(ft)-5 -10 -15 -20 Hand auger to 5' Cementgrout 2.0 7.0 7.0 Fine to medium grained Silty SAND (SP-SM); dark brown togray; loose to dry; topsoil Fine to medium grained Silty SAND with clay (SP-SM); lightbrown and tan; loose; moist Coarse grained SAND (SP); tan and white; subangular tosubrounded; loose; moist Fine to medium grained SAND (SP); light gray; loose; wet; 1 ftbed of coarser grained sand at 14.5-15.5ft Coarse grained SAND (SW); orange and reddish orange;loose; wet; iron oxidation Coarse grained SAND (SP) (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/12/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID:Cumberland-1D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:52 ft TOTAL BORING DEPTH:67 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 67 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)105 100 95 90 Depth(ft)-5 -10 -15 -20 2-inchPVCcasing Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) 14.6 Silty CLAY with sand (CL-ML); dark gray with dark brown; soft;moist Medium grained SAND (SP); orange and reddish orange;loose; wet Fine grained SAND with clay (SP); gray with dark gray; loose;wet; dark gray clay seams 1-10cm thick; mica rich Lean grained CLAY (CL); dark gray; firm; moist Fine grained SAND (SP); loose; wet; black organic-rich seamsthroughout 1' clay lense at 48-49ft (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/12/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID:Cumberland-1D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:52 ft TOTAL BORING DEPTH:67 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 67 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)80 75 70 65 Depth(ft)-30 -35 -40 -45 BackfillPlug 10.0 Lean grained CLAY (CL); dark gray; firm; moist Fine grained SAND (SP); loose; wet; mica rich Lean grained CLAY (SL); dark gray; firm; moist Fine grained SAND (SP); loose; wet; grainsize coarsens at 58' Lean grained CLAY (CL); dark gray; firm; moist End of Boring at 67.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/12/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID:Cumberland-1D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:52 ft TOTAL BORING DEPTH:67 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 67 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)55 50 45 Depth(ft)-55 -60 -65 Hand auger to 5' Cementgrout Bentonitechips 2-inchPVCcasing Filterpack(sand)2-inchPVCscreen(0.010inch) 2.0 9.0 Silty SAND (SW); light brown to brown; angular; dry Fine grained Clayey SAND (SW-SC); reddish gray to purplishgray; dense; moistFine grained SAND (SP); dark brown to reddish brown; loose;wet Fine grained SAND (SP); dark brown to reddish brown;angular; loose; wet; roots present Fine grained SAND (SP); tan to orangeish brown; angular;loose Medium to coarse grained SAND (SP); orange and white;loose; wet Coarse grained SAND (SW); white to orangeish tan; loose; wet End of Boring at 17.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/12/2019 GEOLOGIST:Alli Vo DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID: Cumberland-2S SAMPLING METHOD:Dual Tube NORTHING:34.98615 approximate EASTING:-78.752831 approximate GROUND ELEVATION:123 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:17 ft TOTAL BORING DEPTH:17 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 17 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)120 115 110 Depth(ft)-5 -10 -15 Hand auger to 5'. Advance 8" protective casing Cementgrout 2.0 3.0 10.0 Silty SAND (SW); light brown; angular; loose; dry Clayey SAND some silt (SW-SC); light brown and tan; dense;moist; low plasticityFine grained SAND (SP); purplish gray to reddish brown;loose; moistFine to medium grained SAND (SW); dark brown; dense;moistMedium grained SAND (SW); brown; angular to subangular;loose; wet Medium to coarse grained SAND (SP); brown; angular; loose;wet Medium grained SAND (SW); light brown; loose; wet Medium to coarse grained SAND (SW); tan to grayish white;loose; wet; trace silt Fine grained SAND (SP); light brown; loose; wet Medium to coarse grained SAND with gravel (SW); yellowishtan; loose; wet (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/12/2019 GEOLOGIST:Alli Vo DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Cumberland-2D SAMPLING METHOD:Dual Tube NORTHING:34.986197 approximate EASTING:-78.752883 approximate GROUND ELEVATION:123 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:57 ft TOTAL BORING DEPTH:57 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 57 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)120 115 110 105 100 Depth(ft)-5 -10 -15 -20 2-inchPVCcasing Bentonitechips 10.0 10.0 Medium to coarse grained SAND with gravel (SW); yellowishtan; loose; wet (continued) Fine grained SAND (SP); orange to yellowish brown; soft; wet;trace mica Fine grained SAND (SP); light gray to white; wet; mica Fine grained SAND (SP); dark gray; moist; mica CLAY (CH); dark gray; hard; moist; high plasticity; micaabundant CLAY (CH); dark gray; hard; moist; high plasticity; micaabundant; trace lignite SAND with clay (SW-SC); dark gray; angular; dense; wet;mica abundant Fine to medium grained SAND (SP); dark gray; loose; wet;mica abundant (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/12/2019 GEOLOGIST:Alli Vo DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Cumberland-2D SAMPLING METHOD:Dual Tube NORTHING:34.986197 approximate EASTING:-78.752883 approximate GROUND ELEVATION:123 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:57 ft TOTAL BORING DEPTH:57 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 57 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)95 90 85 80 75 Depth(ft)-30 -35 -40 -45 Filterpack(sand)2-inchPVCscreen(0.010inch) 10.0 Fine to medium grained SAND (SP); dark gray; loose; wet;mica abundant (continued) CLAY (CH); dark gray; hard; moist; high plasticity; micaabundant Fine to medium grained SAND (SP); angular; loose; micaabundant End of Boring at 57.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/12/2019 GEOLOGIST:Alli Vo DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Cumberland-2D SAMPLING METHOD:Dual Tube NORTHING:34.986197 approximate EASTING:-78.752883 approximate GROUND ELEVATION:123 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:57 ft TOTAL BORING DEPTH:57 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 57 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)70 Depth(ft)-55 Hand auger to 5' Cementgrout Bentonitechips 2-inchPVCcasing Filterpack(sand)2-inchPVCscreen(0.010inch) 2.0 3.0 Medium grained SAND (SP); tan; loose; dry Medium grained SAND (SP); tan; loose; dry; root materialpresent Medium grained SAND (SP); tan to light brown; loose; wet Medium grained SAND (SP); brown to light brown; loose; wet Fine to medium grained SAND (SP); brown; loose; wet End of Boring at 14.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/12/2019 to 9/12/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID: Cumberland-3S SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:14 ft TOTAL BORING DEPTH:14 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 14 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)105 100 Depth(ft)-5 -10 Hand auger to 5' Cementgrout 2-inchPVCcasing Bentonitechips Filter 2.0 8.0 5.0 Medium grained SAND (SP); medium tan; loose; dry Medium grained SAND (SP); light tan; loose; dry Medium to coarse grained SAND with gravel (SW); brown;subangular; loose; moist; coarsens downward CLAY (CL); medium gray; stiff; moist Coarse grained SAND with gravel (SW); light gray;subrounded; loose; wet Medium to coarse grained SAND (SP); light gray; loose; wet;organic rich seam at 25' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/11/2019 to 9/11/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID:Cumberland-3D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:27 ft TOTAL BORING DEPTH:42 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 42 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)105 100 95 90 Depth(ft)-5 -10 -15 -20 pack(sand)2-inchPVCscreen(0.010inch) BackfillPlug 9.3 7.0 Medium to coarse grained SAND (SP); light gray; loose; wet;organic rich seam at 25' (continued) Fine to medium grained Clayey SAND (SP-SC); light gray;wet; high plasticity CLAY (CL); light gray; stiff; moist Fine to medium grained Clayey SAND (SP-SC); light gray;wet; high plasticity End of Boring at 42.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/11/2019 to 9/11/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID:Cumberland-3D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:27 ft TOTAL BORING DEPTH:42 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 42 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)80 75 70 Depth(ft)-30 -35 -40 Hand auger to 5' Cementgrout Bentonitechips 2-inchPVCcasing Filterpack(sand)2-inchPVCscreen(0.010inch) 2.2 9.0 10.0 Fine grained SAND (SP); yellowish brown; angular; loose; dry Fine to medium grained SAND (SP); yellow brown to tan;angular; loose; wet Fine to medium grained SAND (SP); reddish gray; angular;loose; wetFine to medium grained SAND (SP); gray to light gray;subangular; loose; wetFine grained SAND with silt (SP); dark brown to black;subangular; loose; wet Fine grained SAND (SP); dark reddish brown; loose; wet Fine grained SAND (SP); dark reddish brown; loose; wet Fine grained Silty SAND (SW-SM); reddish brown; dense; wet End of Boring at 22.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/11/2019 to 9/11/2019 GEOLOGIST:Alli Vo DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID: Cumberland-4S SAMPLING METHOD:Dual Tube NORTHING:34.884772 approximate EASTING:-78.739107 approximate GROUND ELEVATION:117 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:22 ft TOTAL BORING DEPTH:22 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 22 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)115 110 105 100 95 Depth(ft)-5 -10 -15 -20 Hand auger to 5' Heaving sands 2.0 8.0 10.0 Fine to medium grained SAND (SP); reddish brown to brown;subangular; loose; dry Fine to medium grained SAND (SP); tan to light brown; loose;moist; organic rich seam at 5.5' Fine to medium grained SAND (SP); orangeish brown to tan;loose; moist; trace siltFine to medium grained SAND (SP); light brown to reddishgray; loose; wetFine to medium grained SAND (SP); light brown to gray;subangular; loose to soft; moistFine grained SAND (SP); dark brown; subangular; loose; wet Fine grained SAND (SP); brown to dark brown Fine grained SAND (SP); dark brown to reddish brown; loose;wet (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/10/2019 to 9/10/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Cumberland-4D SAMPLING METHOD:Dual Tube NORTHING:34.884788 approximate EASTING:-78.737069 approximate GROUND ELEVATION:117 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:67 ft TOTAL BORING DEPTH:67 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 67 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)115 110 105 100 95 Depth(ft)-5 -10 -15 -20 Large wood debris present Cementgrout 2-inchPVCcasing 7.0 7.0 Fine grained SAND (SP); dark brown to reddish brown; loose;wet (continued) Fine grained SAND (SP); dark brown; loose; wet Fine to medium grained SAND (SP); dark brown then reddishbrown; loose; wet SILT (ML); tan to orange brown; hard; moist; trace mica Fine to medium grained SAND (SP); yellowish brown; loose;wetSilty SAND (SW-SM); orangeish brown; subangular; loose;wet Fine grained SAND some (SW); orangeish brown; soft; moist;trace fine gravel Fine to medium grained SAND some silt (SW); orangeishbrown; loose; moist; trace gravel Coarse grained SAND clay (SP); orangeish brown;subangular; loose; wet Fine grained SAND (SP-SM); orangeish brown; angular; soft;wet SAND with (SP-SM); light gray; firm; moist; trace mica Fine to medium grained SAND clay (SP); light gray to darkgray; angular; loose; wet; trace mica Fine grained SAND (SP); angular; dense; wet; clay lenses (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/10/2019 to 9/10/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Cumberland-4D SAMPLING METHOD:Dual Tube NORTHING:34.884788 approximate EASTING:-78.737069 approximate GROUND ELEVATION:117 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:67 ft TOTAL BORING DEPTH:67 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 67 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)90 85 80 75 70 Depth(ft)-30 -35 -40 -45 Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) 10.0 10.0 SAND (SP-SC); dark gray to gray; angular; wet; some mica CLAY (CH); dark gray; hard; moist; high plasticity; micaabundantFine to medium grained SAND (SW); gray; angular; loose;wet; mica abundantCLAY (CH); dark gray; hard; moist; high plasticity; gray mica SAND (SW-SM); gray; dense; wet; mica abundant; dark graymm-scale clay lenses throughout; trace lignite Fine to medium grained SAND (SP); gray; loose; wet; micaabundant Medium to coarse grained SAND (SW); gray to dark gray;loose; wet; mica abundant CLAY with (CH); gray; hard; moist; high plasticity; micapresentMedium to coarse grained SAND clay (SW); gray; loose; wet;mica abundant CLAY (CH); dark gray; hard; moist; high plasticity; micapresent Medium to coarse grained SAND (SW-SC); dark gray; dense;wet; mica abundant, little gravel End of Boring at 67.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/10/2019 to 9/10/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Cumberland-4D SAMPLING METHOD:Dual Tube NORTHING:34.884788 approximate EASTING:-78.737069 approximate GROUND ELEVATION:117 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:67 ft TOTAL BORING DEPTH:67 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 67 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)65 60 55 50 Depth(ft)-55 -60 -65 Hand auger to 5' Cementgrout Bentonitechips 2-inchPVCcasing Filterpack(sand)2-inchPVCscreen(0.010 inch) 0.5 5.0 5.0 Sandy SILT with gravel (ML); grayish brown; loose; dry;asphalt & gravel 0.5ft-1.5ft Medium grained SAND (SP); light brown to tan; subangular;loose; moist Medium grained SAND (SP); brown to dark brown;subangular; loose; moist SAND with gravel (SW); light gray to dark gray; loose; wet Silty CLAY (CL-ML); dark brown; soft; wet; high plasticity Medium to coarse grained Gravelly SAND (SP); brown;subangular; loose; wet Coarse grained SAND with gravel (SW); light brown; loose;wet; fine grain size with depth Medium grained SAND (SP); light brown; loose; wet End of Boring at 24.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/11/2019 to 9/11/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID: Cumberland-5S SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:24 ft TOTAL BORING DEPTH:24 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 24 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)105 100 95 90 Depth(ft)-5 -10 -15 -20 Hand auger to 5' Cementgrout 5.0 8.0 Sandy SILT (ML); organic rich layers of concrete 1-2" thick andgravel at 1ft and 2.5ft Medium grained SAND (SP); light brown to tan; subangular tosubrounded; loose; moist; root material present Medium grained SAND (SP); dark brown; subangular tosubrounded; loose; moist; root material present Medium grained SAND with gravel (SW); light gray to darkgray; loose; wet Silty CLAY (CL-ML); dark brown; soft; wet; high plasticity; rootmaterial Medium to coarse grained SAND (SP); brown; subangular;loose; wet Coarse grained SAND (SP); light brown; angular tosubangular; loose; wet Coarse grained SAND with gravel (SW); light brown; loose;wet Coarse grained SAND with gravel (SW); light brown to lightgray; loose; wet CLAY (CH); medium gray; stiff; moist; high plasticity; sandlenses throughout (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/11/2019 to 9/11/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID:Cumberland-5D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:57 ft TOTAL BORING DEPTH:57 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 57 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)105 100 95 90 Depth(ft)-5 -10 -15 -20 2-inchPVCcasing Bentonitechips 9.5 CLAY (CH); medium gray; stiff; moist; high plasticity; sandlenses throughout (continued) Fine grained SAND with clay (SP-SC); light gray to mediumgray; loose; wet; mica rich; lignite throughout CLAY (CH); medium gray; stiff; moist; high plasticity; sandlenses throughout Fine grained SAND (SP); light gray; loose; wet; organic richlaminations; some lignite present (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/11/2019 to 9/11/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID:Cumberland-5D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:57 ft TOTAL BORING DEPTH:57 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 57 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)80 75 70 65 Depth(ft)-30 -35 -40 -45 Filterpack(sand) 2-inchPVCscreen(0.010inch) Fine grained SAND (SP); light gray; loose; wet; organic richlaminations; some lignite present (continued) End of Boring at 57.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/11/2019 to 9/11/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Will Keyes DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8150 LS (GV5) BOREHOLE DIA:4" BOREHOLE ID:Cumberland-5D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION: Not Recorded TOTAL WELL DEPTH:57 ft TOTAL BORING DEPTH:57 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 57 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)55 Depth(ft)-55 Hand auger to 5' Cementgrout 2-inchPVCcasingBentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) 1.6 10.0 10.0 Fine to medium grained Silty SAND (SP-SM); tan brown;loose; moist Fine grained Silty SAND some clay (SP-SC); light brownorangeish tan; dense; moist to dry Coarse grained Clayey SILT some sand (ML); light reddishgray; firm; moist to dry; medium plasticity; red and orangelaminations Sandy SILT with clay (ML); light reddish gray; firm; moist todry; red and orange laminations Fine grained SAND with some silt (SP-SM); light grayorangeish tan; dense Fine grained Silty SAND (SP-SM); whiteish tan becomesorangeish tan; loose; moist Fine grained SAND (SP); yellowish brown with gray; loose;wet; pink and gray laminations Fine grained SAND with clay (SP-SC); pinkish orange withlight gray; firm; wet; coarse sand layer Fine grained SAND (SP); light gray with orangeish pink;dense; wet; trace mica (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/9/2019 to 9/9/2019 GEOLOGIST:Allison Vo DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID: Robeson-1S SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION:110 (feet NAVD88) TOTAL WELL DEPTH:27 ft TOTAL BORING DEPTH:27 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 27 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)105 100 95 90 Depth(ft)-5 -10 -15 -20 Fine grained SAND with clay (SP); orange; soft; wet CLAY (CH); dark gray; stiff; moist End of Boring at 27.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/9/2019 to 9/9/2019 GEOLOGIST:Allison Vo DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID: Robeson-1S SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION:110 (feet NAVD88) TOTAL WELL DEPTH:27 ft TOTAL BORING DEPTH:27 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 27 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)Depth(ft) Hand auger to 5' Cementgrout 1.6 5.0 5.0 10.0 SAND with silt (SP); light tan with orangeish brown; loose tofine; moist; 8" topsoil CLAY with sand (CL); orangeish tan; firm; moist; low plasticity CLAY with some sand (CL); light gray with orange; firm; moist;orange streaks Fine grained Silty SAND (SP-SM); pinkish tan with lightorangeish gray; loose; wet; medium grains near bottom Fine grained Silty SAND (SP-SM); light gray and orangeishgray; loose; wet; trace mica (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/4/2019 to 9/4/2019 GEOLOGIST:Amy Kenwell DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Robeson-1D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION:110 (feet NAVD88) TOTAL WELL DEPTH:53 ft TOTAL BORING DEPTH:53 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 53 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)105 100 95 90 Depth(ft)-5 -10 -15 -20 Installed 8" protective casing to 29' followed by 4 x 6 2-inchPVCcasing Bentonitechips Filterpack (sand)2-inchPVCscreen(0.010inch) 10.0 CLAY with some sand (CH); light orange; soft; wet; highplasticity; trace mica SAND with silt and clay (SP-SM); light orange; loose; wet Coarse grained SAND (SP); firm; wet; with lignite CLAY (CH); gray; firm to hard; moist; high plasticity Clayey SAND (SP-SC); dark gray; dense; wet; medium grain CLAY with sand (CH); dark gray; hard; moist; high plasticity;less sand toward top SAND with silt (SP); light gray; loose; wet; fine to mediumgrained; lignite at 46ft Coarse grained SAND (SW); light gray; loose; wet Coarse grained SAND with silt (SP); gray; loose; wet (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/4/2019 to 9/4/2019 GEOLOGIST:Amy Kenwell DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Robeson-1D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION:110 (feet NAVD88) TOTAL WELL DEPTH:53 ft TOTAL BORING DEPTH:53 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 53 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)80 75 70 65 Depth(ft)-30 -35 -40 -45 6.0Coarse grained SAND with silt (SP); gray; loose; wet(continued) CLAY with sand (CH); dark gray; soft; wet; high plasticity;sand is fine grained End of Boring at 53.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Offsite Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:9/4/2019 to 9/4/2019 GEOLOGIST:Amy Kenwell DRILLING CONTRACTOR:SAEDACCO DRILLER NAME:Brent Romec DRILLING METHOD:Sonic RIG TYPE:Geoprobe 8140LS BOREHOLE DIA:6" BOREHOLE ID:Robeson-1D SAMPLING METHOD:Dual Tube NORTHING:Not recorded EASTING: Not recorded GROUND ELEVATION:110 (feet NAVD88) (approximate) TOC ELEVATION:110 (feet NAVD88) TOTAL WELL DEPTH:53 ft TOTAL BORING DEPTH:53 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 53 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)Depth(ft) Hand auger to 5'. Possible road fill material 2-inchPVCcasingWellCover Cement grout Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) 3.5 3.3 3.0 Fine grained SAND with fine to coarse gravel (SW); lightbrown; color transitions to gray at 3' SAND with clay (SC); black Fine to medium grained Silty SAND (SP); brown Clayey SILT with sand (CL-ML); light brown; soft; damp; Claycontent increases around 7.75' moisture content increases at13.5; mm scale sand layers CLAY (CL); light gray; very soft; wet; high plasticity CLAY (CL); light brown; very stiff; moist; 1in sand lense at19.5 ft. Fine to medium grained SAND (SP-SC); grayish brown withlight brown; wet; mm to cm scale clay lense (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/27/2019 to 6/27/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-1S SAMPLING METHOD:Dual Tube NORTHING:400540.611 EASTING:2051792.586 GROUND ELEVATION:50.78 (feet NAVD88) TOC ELEVATION:54.198 (feet NAVD88) TOTAL WELL DEPTH:17.8 ft TOTAL BORING DEPTH:42.5 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46.2 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Highly expansive clay in 30-35 interval sampled; Driller pushed2.5 ft instead of full 5' Dual tube got stuck at 40' terminate boring at 42.5' 4.0 4.0 3.0 3.0 5.0 4.5 4.5 Fine to medium grained SAND (SP-SC); grayish brown withlight brown; wet; mm to cm scale clay lense (continued) Coarse grained SAND (SP); brown; subangular; wet; 4" oflignite, black platey cleavage CLAY with mica (CH); light gray; very stiff; damp; Lense of finesilty sand at 36-37.5'; mica richHighly expansive clays at 30-42.5' PIW-1 soil boring terminated at 42.5 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 46.2 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/27/2019 to 6/27/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-1S SAMPLING METHOD:Dual Tube NORTHING:400540.611 EASTING:2051792.586 GROUND ELEVATION:50.78 (feet NAVD88) TOC ELEVATION:54.198 (feet NAVD88) TOTAL WELL DEPTH:17.8 ft TOTAL BORING DEPTH:42.5 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46.2 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)25 20 15 10 5 Depth(ft)-25 -30 -35 -40 -45 Hand auger to 5'. WellCover Cementgrout 2-inchPVCcasing Bentonitechips 3.5 3.3 3.0 SAND with clay (SC); black Fine to medium grained Silty SAND (SP); brown Clayey SILT with sand (CL-ML); light brown; soft; damp; Clay content increases around 7.75' moisture content increases at13.5; mm scale sand layers CLAY (CL); light gray; very soft; wet; high plasticity CLAY (CL); light brown; very stiff; moist; 1in sand lense at19.5 ft. Fine to medium grained SAND (SP-SC); grayish brown withlight brown; wet; mm to cm scale clay lense (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/27/2019 to 6/27/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-1D SAMPLING METHOD:Dual Tube NORTHING:400547.772 EASTING:2051801.42 GROUND ELEVATION:49.529 (feet NAVD88) TOC ELEVATION:52.33 (feet NAVD88) TOTAL WELL DEPTH:24.5 ft TOTAL BORING DEPTH:42.5 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 42.5 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Filterpack(sand)2-inchPVCscreen(0.010inch) 4.0 4.0 3.0 3.0 5.0 4.5 5.0 Fine to medium grained SAND (SP-SC); grayish brown withlight brown; wet; mm to cm scale clay lense (continued) Coarse grained SAND (SP); brown; subangular; wet; 4" oflignite, black platey cleavage CLAY with mica (CH); light gray; very stiff; damp; Lense of finesilty sand at 36-37.5'; mica richHighly expansive clays at 30-42.5' End of Boring at 42.5 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/27/2019 to 6/27/2019 GEOLOGIST:Sarah Walker DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-1D SAMPLING METHOD:Dual Tube NORTHING:400547.772 EASTING:2051801.42 GROUND ELEVATION:49.529 (feet NAVD88) TOC ELEVATION:52.33 (feet NAVD88) TOTAL WELL DEPTH:24.5 ft TOTAL BORING DEPTH:42.5 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 42.5 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)25 20 15 10 Depth(ft)-25 -30 -35 -40 Hand auger to 5'. WellCover Cementgrout2-inchPVCcasing Bentonitechips Filterpack(sand)2-inch 5.0 4.5 4.5 SILT (ML); brown; dry; non plastic SILT with clay (CL-ML); reddish brown; hard; dry Silty CLAY with some mica (CH); gray with reddish brown;medium stiff; high plasticity Fine to medium grained GRAVEL with some fine to mediumsand (GP); brown; loose to medium dense; wet;Poorly-sortedFine to medium grained SAND (SP); brown; loose to mediumdense; wet; 1/2" seam of high plastic gray clay at 17.2" Fine to medium grained SAND with some mica (SP); brown;loose; wet; well-sorted (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/2/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Nathan Mariard DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-3D SAMPLING METHOD:Dual Tube NORTHING:399711.752 EASTING:2052088.802 GROUND ELEVATION:50.513 (feet NAVD88) TOC ELEVATION:53.315 (feet NAVD88) TOTAL WELL DEPTH:19 ft TOTAL BORING DEPTH:30 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 44.55 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Lignitic material at 23-25' PVCscreen(0.010inch) 5.0 0.3 Fine to medium grained SAND with clay (SP-SC); dark gray;medium dense; wet; interbedded with high plastic, gray claylenses CLAY (CH); dark gray; very hard; dry; high plasticity PIW-3D soil boring terminated at 30.0 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 44.6 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/2/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Nathan Mariard DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-3D SAMPLING METHOD:Dual Tube NORTHING:399711.752 EASTING:2052088.802 GROUND ELEVATION:50.513 (feet NAVD88) TOC ELEVATION:53.315 (feet NAVD88) TOTAL WELL DEPTH:19 ft TOTAL BORING DEPTH:30 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 44.55 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)25 20 15 10 Depth(ft)-25 -30 -35 -40 Hand auger to 5' WellCover Cementgrout2-inchPVCcasing 4.1 3.5 5.0 Silty CLAY with trace sand (SC); brown; moist Silty CLAY (CL-ML); brown; very hard; moist; low plasticity Silty CLAY (CL); gray; very hard; moist; medium plasticity Sandy CLAY with trace gravel (CL-ML); gray;subrounded-rounded; very soft; wet; medium plasticity CLAY (CH)CLAY (CH); dark gray; hard; moist; high plasticity; fine tomedium grained sand 10.3-10.8' with trace wood at 10.5' CLAY (CH); dark gray; very hard; moist; high plasticity; 0.25"sand seams 16'-17', fine grained medium gray sand,micaeous 16'-17' CLAY with mica (CH); dark gray; very hard; moist; highplasticity; fine-grained micaceous sand ~2" thick at 23.8', 3"thick at 24.6' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/1/2019 to 7/1/219 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Nathan Mariard DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-4D SAMPLING METHOD:Dual Tube NORTHING:398817.363 EASTING:2052102.819 GROUND ELEVATION:50.367 (feet NAVD88) TOC ELEVATION:53.041 (feet NAVD88) TOTAL WELL DEPTH:32.3 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 40 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) 5.0 4.5 4.2 3.0 CLAY with mica (CH); dark gray; very hard; moist; highplasticity; fine-grained micaceous sand ~2" thick at 23.8', 3" thick at 24.6' (continued) CLAY with mica (CH); dark gray; hard; moist; high plasticity;increasing sand fraction below 28.5', trace to some lignite at29.2" Fine to medium grained SAND with trace silt (SP-SM); darkgray; medium dense; wet; Well-sorted, trace clay lenses at30-31, increasing sand from below 31', trace lignite at 30.5' Fine to medium grained SAND (SP); medium dense; wet;Well-sorted, trace lignite at 37-38' Sandy CLAY (CL); light gray; moist; low to medium plasticity End of Boring at 40.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/1/2019 to 7/1/219 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Nathan Mariard DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-4D SAMPLING METHOD:Dual Tube NORTHING:398817.363 EASTING:2052102.819 GROUND ELEVATION:50.367 (feet NAVD88) TOC ELEVATION:53.041 (feet NAVD88) TOTAL WELL DEPTH:32.3 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 40 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)25 20 15 Depth(ft)-25 -30 -35 -40 Hand auger to 5'. Corresponds to HP-10. WellCover Cementgrout2-inchPVCcasing Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010 inch) Fine to medium grained SAND with silt (SP-SM); brown tan;loose; damp Silty CLAY (CL-ML); reddish brown and light gray; firm; moist Fine grained Silty SAND (SP-SM); loose; damp from 7' Medium to coarse grained SAND (SW); brown to tannishorange; loose; wet; 3" gray clay layer from 13.75-14' CLAY with trace sand (CL); black to gray; firm; moist; tracesand at 35' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/9/2019 to 7/9/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-5S SAMPLING METHOD:Dual Tube NORTHING:398520.381 EASTING:2051951.26 GROUND ELEVATION:72.68 (feet NAVD88) TOC ELEVATION:75.188 (feet NAVD88) TOTAL WELL DEPTH:9.75 ft TOTAL BORING DEPTH:45 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 45 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)0 -5 -10 -15 -20 CLAY with trace sand (CL); black to gray; firm; moist; tracesand at 35' (continued) Medium to coarse grained SAND (SP); light gray; mediumstiff; moist; interbedded with mm-scale clay seams from 39'to 39.5' Silty CLAY (CL-ML); dark gray to gray; medium firm; moist Fine to medium grained Silty SAND (SP-SM); dark gray tolight gray; medium to very firm; moist; interbedded withmm-scale silty clay seams End of Boring at 45.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/9/2019 to 7/9/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-5S SAMPLING METHOD:Dual Tube NORTHING:398520.381 EASTING:2051951.26 GROUND ELEVATION:72.68 (feet NAVD88) TOC ELEVATION:75.188 (feet NAVD88) TOTAL WELL DEPTH:9.75 ft TOTAL BORING DEPTH:45 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 45 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)-25 -30 -35 -40 -45 Hand auger to 5'. Corresponds to HP-08. WellCover Cementgrout2-inchPVCcasing Bentonitechips 3.5 3.5 4.3 SILT with trace sand (ML); reddish brown; soft; dry; increasingsand fraction with depth, moist at 13.5' CLAY with silt (CL); reddish brown to olive gray; medium stiff;moist; silt lenses (15'-25.9'), increasing moisture at 24.5' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/28/2019 to 6/28/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-6S SAMPLING METHOD:Dual Tube NORTHING:398118.144 EASTING:2052540.567 GROUND ELEVATION:49.85 (feet NAVD88) TOC ELEVATION:53.359 (feet NAVD88) TOTAL WELL DEPTH:18 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 40.6 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)0 -5 -10 -15 -20 Filterpack(sand)2-inchPVCscreen(0.010inch) 3.8 5.0 5.0 3.0 CLAY with silt (CL); reddish brown to olive gray; medium stiff;moist; silt lenses (15'-25.9'), increasing moisture at 24.5' (continued) CLAY (CH); dark gray; medium stiff; moist; homogenous SAND (SP); yellowish red and gray; medium dense; moist; dark gray clay lenses from 27'-27.2' CLAY (CH); dark gray; medium stiff; moist; medium gray sandlense at 28.6'-28.8' CLAY (CH); dense; moist; homogenous with suspected lignitelenses (<1/4") from 33'-34' CLAY with some mica (CL); medium gray; stiff; moist; thindark gray banding PIW-3D soil boring terminated at 40.0 feet. Lithologicdescriptions not available beyond this depth.End of Boring at 40.6 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/28/2019 to 6/28/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-6S SAMPLING METHOD:Dual Tube NORTHING:398118.144 EASTING:2052540.567 GROUND ELEVATION:49.85 (feet NAVD88) TOC ELEVATION:53.359 (feet NAVD88) TOTAL WELL DEPTH:18 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 40.6 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)25 20 15 10 Depth(ft)-25 -30 -35 -40 Hand auger to 5'. WellCover Cementgrout 2-inchPVCcasing Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) 3.4 3.8 3.9 SILT with sand (ML); reddish brown to brown; medium stiff;moist CLAY (CL); medium gray with yellowish red; very soft; moist Fine grained SAND with silt (SP-SM); reddish brown withgray; moist CLAY with trace silt (CL); gray; very soft; moist; with yellowishto red streakingSAND with silt (SP-SM); gray to yellowish red; loose; moist;with some stratification between gray and yellowish redsands, gray sands ~2" thickEnd of Boring at 18.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/25/2019 to 6/25/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-7S SAMPLING METHOD:Dual Tube NORTHING:396786.995 EASTING:2052589.486 GROUND ELEVATION:45.809 (feet NAVD88) TOC ELEVATION:48.392 (feet NAVD88) TOTAL WELL DEPTH:7 ft TOTAL BORING DEPTH:18 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 18 ft bgs Page 1 of 1PatternLithologic DescriptionElev.(ft,NAVD88)45 40 35 30 Depth(ft)0 -5 -10 -15 Hand auger to 5'. WellCover Cementgrout 2-inchPVCcasing 3.4 3.8 3.9 SILT with sand (ML); reddish brown to brown; medium stiff;moist CLAY (CL); medium gray with yellowish red; very soft; moist Fine grained SAND with silt (SP-SM); reddish brown withgray; moist CLAY with trace silt (CL); gray; very soft; moist; with yellowishto red streakingSAND with silt (SP-SM); gray to yellowish red; loose; moist;with some stratification between gray and yellowish redsands, gray sands ~2" thick Fine to medium grained SAND trace clay (SP-SC); light grayyellowish red; loose; wet; with small lens of silty dark graysand (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/25/2019 to 6/25/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-7D SAMPLING METHOD:Dual Tube NORTHING:396787.693 EASTING:2052595.368 GROUND ELEVATION:45.778 (feet NAVD88) TOC ELEVATION:48.597 (feet NAVD88) TOTAL WELL DEPTH:29 ft TOTAL BORING DEPTH:50 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 50 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)45 40 35 30 25 Depth(ft)0 -5 -10 -15 -20 Bentonitechips Filterpack(sand) 2-inchPVCscreen(0.010inch) 5.0 5.0 3.2 4.0 4.5 Fine to medium grained SAND trace clay (SP-SC); light grayyellowish red; loose; wet; with small lens of silty dark gray sand (continued) CLAY (CL); dark gray; medium stiff; moist; interbedded withthin (0.5" thick) bands of dark gray clayFine grained SAND (SP-SC); yellowish red to gray; mediumdense; moist; with stratified with thin (.5") bands of dark grayclay Fine to medium grained SAND (SP); dark gray; mediumdense; wet; homogenous, with thin (0.5") band of hard blackmaterial, possibly lignite Fine grained SAND and silt (SP-SM); gray; medium dense;moist; with thick bands of dark gray material Fine grained SAND and silt (CL-ML); medium dense; moist;increasing clay fraction with depth CLAY (CH); medium gray; very stiff; moist; homogenous CLAY with trace sand (CH); greenish gray; very stiff; dry; thinbanding of darker gray material; visible micaceous grains,with other dark gray mineral banding visible in some places (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/25/2019 to 6/25/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-7D SAMPLING METHOD:Dual Tube NORTHING:396787.693 EASTING:2052595.368 GROUND ELEVATION:45.778 (feet NAVD88) TOC ELEVATION:48.597 (feet NAVD88) TOTAL WELL DEPTH:29 ft TOTAL BORING DEPTH:50 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 50 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)20 15 10 5 0 Depth(ft)-25 -30 -35 -40 -45 3.5CLAY with trace sand (CH); greenish gray; very stiff; dry; thinbanding of darker gray material; visible micaceous grains, with other dark gray mineral banding visible in some places(continued) End of Boring at 50.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/25/2019 to 6/25/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-7D SAMPLING METHOD:Dual Tube NORTHING:396787.693 EASTING:2052595.368 GROUND ELEVATION:45.778 (feet NAVD88) TOC ELEVATION:48.597 (feet NAVD88) TOTAL WELL DEPTH:29 ft TOTAL BORING DEPTH:50 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 50 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)Depth(ft)-50 Hand auger to 5'. WellCover Cementgrout 2-inchPVCcasing 4.8 5.0 4.4 Silty CLAY (CL-ML); reddish brown; dry Silty CLAY (CL-ML); reddish brown with gray; soft; moist;interbedded clay and silt throughout, clay becomes moist andmore sandy at 19.5' to 20' Fine grained SAND (SP); yellowish red to reddish brown;loose; moist to wet; Black bands appear organic; fine tomedium grained from 29'; approximately 1" band of lignite at28' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/26/2019 to 6/26/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-8D SAMPLING METHOD:Dual Tube NORTHING:396403.378 EASTING:2052682.019 GROUND ELEVATION:45.919 (feet NAVD88) TOC ELEVATION:48.518 (feet NAVD88) TOTAL WELL DEPTH:35.5 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46.55 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)45 40 35 30 25 Depth(ft)0 -5 -10 -15 -20 Heaving sand Bentonitechips Filterpack (sand) 2-inchPVC screen(0.010inch) 3.0 3.2 3.9 4.1 Fine grained SAND (SP); yellowish red to reddish brown;loose; moist to wet; Black bands appear organic; fine to medium grained from 29'; approximately 1" band of lignite at28' (continued) Fine to medium grained SAND (SP); dark gray; wet; visiblemica grains, lignite laminations at 33.1', 34.5', and 35' Increased lignitic laminations from 37.5' to 40' (~1/4" to 1.5"thick) PIW-8D soil boring terminated at 44.55 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 46.6 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/26/2019 to 6/26/2019 GEOLOGIST:Ryan Gabelman DRILLING CONTRACTOR:Cascade DRILLER NAME:Daniel Ferrell DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-8D SAMPLING METHOD:Dual Tube NORTHING:396403.378 EASTING:2052682.019 GROUND ELEVATION:45.919 (feet NAVD88) TOC ELEVATION:48.518 (feet NAVD88) TOTAL WELL DEPTH:35.5 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 46.55 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)20 15 10 5 0 Depth(ft)-25 -30 -35 -40 -45 Hand auger to 5' WellCover Cementgrout 2-inchPVCcasing Bentonitechips 4.3 4.0 3.0 Fine to medium grained SAND with silt (SP-SM); grayishbrown with reddish brown; loose; dry; trace rounded pebbles(`~2mm) CLAY (CL); gray with red; medium stiff; moist Silty CLAY (CL-ML); grayish brown with reddish brown; stiff;moist Silty SAND with trace clay (SP-SC); tannish brown; loose; moist Silty CLAY (CL-ML); reddish brown and reddish gray; soft;moist Fine to medium grained SAND trace clay (SP-SC); tannishwhite; loose; moist; interbedded with mm-scale clay lenses;wet at 22.5' to 23' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/26/2019 to 6/26/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-9S SAMPLING METHOD: NORTHING:396148.111 EASTING:2052251.101 GROUND ELEVATION:76.801 (feet NAVD88) TOC ELEVATION:79.532 (feet NAVD88) TOTAL WELL DEPTH:24.75 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 40 ft bgs Page 1 of 2PatternLithologic DescriptionElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)0 -5 -10 -15 -20 Filterpack(sand)2-inchPVCscreen (0.010inch) Backfill 3.3 3.8 4.0 5.0 CLAY with trace silt (CL); grayish black; firm; moist; tracelignite Medium to coarse grained SAND (SW); tannish white; loose;wet; intebedded with mm-scale clay lenses Coarse grained SAND (SW); blackish gray; loose; wet; 1 inclay layer at 32.5' and lignitte appears in last inch of run CLAY (CL); blackish gray; moist; with mm-scale sand layersand 0.5" lignite layer at 38' End of Boring at 40.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/26/2019 to 6/26/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-9S SAMPLING METHOD: NORTHING:396148.111 EASTING:2052251.101 GROUND ELEVATION:76.801 (feet NAVD88) TOC ELEVATION:79.532 (feet NAVD88) TOTAL WELL DEPTH:24.75 ft TOTAL BORING DEPTH:40 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 40 ft bgs Page 2 of 2PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 Depth(ft)-25 -30 -35 -40 Hand auger to 5'. Lithology descriptions from 0-40' taken fromPIW-9S. WellCover Cementgrout 2-inchPVCcasing 4.3 4.0 3.0 3.3 Fine to medium grained SAND with silt (SP-SM); grayishbrown with reddish brown; loose; dry; trace rounded pebbles(`~2mm) CLAY (CL); gray with red; medium stiff; moist Silty CLAY (CL-ML); grayish brown with reddish brown; stiff;moist Silty SAND with trace clay (SP-SC); tannish brown; loose;moist Silty CLAY (CL-ML); reddish brown and reddish gray; soft;moist Fine to medium grained SAND with trace clay (SP-SC);tannish white; loose; moist; interbedded with mm-scale claylenses; wet at 22.5' to 23' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/3/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-9D SAMPLING METHOD:Dual Tube NORTHING:396155.974 EASTING:2052250.911 GROUND ELEVATION:76.748 (feet NAVD88) TOC ELEVATION:79.529 (feet NAVD88) TOTAL WELL DEPTH:40 ft TOTAL BORING DEPTH:49 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 55.95 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)0 -5 -10 -15 -20 Heaving sands Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) Backfill 3.8 4.0 5.0 CLAY with trace silt (CL); grayish black; firm; moist; tracelignite Medium to coarse grained SAND (SW); tannish white; loose;wet; intebedded with mm-scale clay lenses Coarse grained SAND (SW); blackish gray; loose; wet; 1 inclay layer at 32.5' and lignitte appears in last inch of run CLAY (CL); blackish gray; moist; with mm-scale sand layersand 0.5" lignite layer at 38' Coarse grained SAND with trace mica (SP); gray with brown;loose; wet; redoximorphic features CLAY (CL); blackish brown with black; stiff; moist; laminated Medium to coarse grained SAND with trace mica (SP); darkgray; medium dense; moist (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/3/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-9D SAMPLING METHOD:Dual Tube NORTHING:396155.974 EASTING:2052250.911 GROUND ELEVATION:76.748 (feet NAVD88) TOC ELEVATION:79.529 (feet NAVD88) TOTAL WELL DEPTH:40 ft TOTAL BORING DEPTH:49 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 55.95 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)-25 -30 -35 -40 -45 Medium to coarse grained SAND with trace mica (SP); darkgray; medium dense; moist (continued) PIW-9D soil boring terminated at 49.0 feet. Lithologicdescriptions not available beyond this depth. End of Boring at 56.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/3/2019 GEOLOGIST:Brandon Peach DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-9D SAMPLING METHOD:Dual Tube NORTHING:396155.974 EASTING:2052250.911 GROUND ELEVATION:76.748 (feet NAVD88) TOC ELEVATION:79.529 (feet NAVD88) TOTAL WELL DEPTH:40 ft TOTAL BORING DEPTH:49 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 55.95 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)25 Depth(ft)-50 -55 Hand auger to 5'. WellCover Cementgrout2-inchPVCcasing Bentonitechips Filterpack(sand) 2-inchPVCscreen(0.010inch) 5.0 3.5 5.0 CLAY with sand (CL); reddish brown with gray; stiff; moist Silty SAND (SW-SM); orangeish brown to light brown; moist;homogenous Fine to medium grained Silty SAND (SW-SC); gray; damp;mm-scale interlayers of gray silty clay CLAY trace gravel (CL); black and gray; very stiff; moist;medium plasticity (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/24/2019 to 6/24/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-10S SAMPLING METHOD:Dual Tube NORTHING:395104.674 EASTING:2052297.041 GROUND ELEVATION:73.304 (feet NAVD88) TOC ELEVATION:76.451 (feet NAVD88) TOTAL WELL DEPTH:7 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)0 -5 -10 -15 -20 5.0 5.0 5.0 0.0 5.0 CLAY trace gravel (CL); black and gray; very stiff; moist;medium plasticity (continued) CLAY trace fine to medium sand (CL); black and gray; stiff;moist Medium to coarse grained SAND (SP); black and gray; loose;wet CLAY (CH); black and gray; stiff; moist; mica-rcih interlayer at31' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/24/2019 to 6/24/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-10S SAMPLING METHOD:Dual Tube NORTHING:395104.674 EASTING:2052297.041 GROUND ELEVATION:73.304 (feet NAVD88) TOC ELEVATION:76.451 (feet NAVD88) TOTAL WELL DEPTH:7 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)-25 -30 -35 -40 -45 Lithology described from sonic cores 49-59' 15' of heaving sands CLAY (CH); black and gray; stiff; moist; mica-rcih interlayer at31' (continued) Medium to coarse grained SAND (SP); black and gray;medium stiff; moist; quartz rich grains and trace mica, lignitepresent, well-sorted CLAY (CL); gray; stiff to dense; medium plasticity End of Boring at 59.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:6/24/2019 to 6/24/2019 GEOLOGIST:Rohit Warrier DRILLING CONTRACTOR:Cascade DRILLER NAME:Brian Thomas DRILLING METHOD:Direct Push/ Hollow Stem Auger RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-10S SAMPLING METHOD:Dual Tube NORTHING:395104.674 EASTING:2052297.041 GROUND ELEVATION:73.304 (feet NAVD88) TOC ELEVATION:76.451 (feet NAVD88) TOTAL WELL DEPTH:7 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)25 20 15 Depth(ft)-50 -55 Hand auger to 5'. Lithologic descriptions from soil boringsco-located with PIW-10S. WellCover 2-inchPVCcasing 5.0 3.5 5.0 CLAY with sand (CL); reddish brown with gray; stiff; moist; lowplasticity Silty SAND (SW-SM); orangeish brown to light brown; moist;homogenous, well-sorted Fine to medium grained Silty SAND (SW-SC); moist;interbedded with gray silty clay CLAY with trace gravel (CL); black and gray; very stiff; moist;medium plasticity (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/2/2019 GEOLOGIST:Allison Vo DRILLING CONTRACTOR:Cascade DRILLER NAME:Isaac Young DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-10D SAMPLING METHOD:Dual Tube NORTHING:395098.787 EASTING:2052293.844 GROUND ELEVATION:73.339 (feet NAVD88) TOC ELEVATION:76.199 (feet NAVD88) TOTAL WELL DEPTH:53 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 1 of 3PatternLithologic DescriptionElev.(ft,NAVD88)75 70 65 60 55 Depth(ft)0 -5 -10 -15 -20 Cementgrout 5.0 5.0 5.0 0.0 5.0 CLAY with trace gravel (CL); black and gray; very stiff; moist;medium plasticity (continued) CLAY (CL); black and gray; stiff; moist; medium plasticity;interbedded with fine to medium grained sand and silt Medium to coarse grained SAND (SP); black and gray; wet CLAY (CH); black and gray; stiff; moist; mica-rcih seam at 31' (Continued Next Page) WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/2/2019 GEOLOGIST:Allison Vo DRILLING CONTRACTOR:Cascade DRILLER NAME:Isaac Young DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-10D SAMPLING METHOD:Dual Tube NORTHING:395098.787 EASTING:2052293.844 GROUND ELEVATION:73.339 (feet NAVD88) TOC ELEVATION:76.199 (feet NAVD88) TOTAL WELL DEPTH:53 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 2 of 3PatternLithologic DescriptionElev.(ft,NAVD88)50 45 40 35 30 Depth(ft)-25 -30 -35 -40 -45 Lithology described from sonic cores 49-59' Bentonitechips Filterpack(sand)2-inchPVCscreen(0.010inch) 5.0 CLAY (CH); black and gray; stiff; moist; mica-rcih seam at 31'(continued) Medium to coarse grained SAND (SP); black and gray;medium stiff; moist; quartz rich grains and trace micaMedium grained SAND (SP); black and gray; moist;well-sorted, lignite, micaceous CLAY (CL); gray; stiff; medium plasticity End of Boring at 59.0 feet bgs. WellConstruction Comments Recovery (ft)BORING LOG PROJECT NAME:Onsite Black Creek Characterization PROJECT NO:TR0795 SITE LOCATION:Fayetteville, NC BORING DATE:7/2/2019 to 7/2/2019 GEOLOGIST:Allison Vo DRILLING CONTRACTOR:Cascade DRILLER NAME:Isaac Young DRILLING METHOD:Direct Push / Sonic RIG TYPE:Geoprobe 7822DT BOREHOLE DIA:8.25" BOREHOLE ID: PIW-10D SAMPLING METHOD:Dual Tube NORTHING:395098.787 EASTING:2052293.844 GROUND ELEVATION:73.339 (feet NAVD88) TOC ELEVATION:76.199 (feet NAVD88) TOTAL WELL DEPTH:53 ft TOTAL BORING DEPTH:59 ft Geosyntec Consultants of NC, PC 2501 Blue Ridge Rd. Suite 430 Raleigh NC, 27607 Telephone: 919-870-0576 All depths referenced to ground surface. Total Depth: 59 ft bgs Page 3 of 3PatternLithologic DescriptionElev.(ft,NAVD88)25 20 15 Depth(ft)-50 -55 09-11-2019 F:\Logs\Fayetteville\PW-01.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 LOG OF BORING: PW-01 (Page 1 of 1) Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 DESCRIPTION 0-2' SILTY SAND: Light tan/gray. 2-12' CLAYEY SAND: Yellowish brown(7.5YR 5/4), soft, sub-angular, damp. Clay content decreases with depth. At 11', intermittent oxidation color change to yellowish brown (10YR 6/4). 12-20.5' SAND WITH SILT:Pale brown (10YR 6/3), very fine to finegrained sand, very firm, loose/soft,damp/moist. Medium to coarse grained at 16'. Color change to light pale purple at 18'. 20.5-22' CLAY: Black/very dark brown (10YR 2/1), stiff/firm, plastic, damp.Lignite layer at 21.5'. End of boring at 22'.USCSSM SC SC SP CL GRAPHICSurf. Elev. 146.627 146.63 145.63 144.63 143.63 142.63 141.63 140.63 139.63 138.63 137.63 136.63 135.63 134.63 133.63 132.63 131.63 130.63 129.63 128.63 127.63 126.63 125.63 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 TOC Elev: : 149.547 Well: PW-01 BentoniteGrout BentoniteSeal SandFiler Pack PVCCasing ExpandablePlug Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (11-21') WELL CONSTRUCTION Bentonite Grout : 0-7'Bentonite Seal : 7-9'Sand Filter Pack : 9-21' Date Started : 7/30/2019 Date Completed : 7/30/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado NAD83 1983 : NC SP Coordinates Northing : 399064.799 Easting : 2049654.303 Completed Depth: : 21' Boring Depth : 22' Elevation/TOC : 146.627 / 149.547 DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-02.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 LOG OF BORING: PW-02 (Page 1 of 3) Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DESCRIPTION 0-2' SILTY SAND: Light tan/gray, loose, very fine to fine grained. 2-15' CLAYEY SAND: Yellowish brown (7.5YR 5/4),soft, sub-angular, very fine to fine grained, damp. Increasing to medium grained with depth. 15-23' SILTY CLAY:Dark grayish brown (7.5YR 4/2) with sand and mica, stiff, firm, damp. Clayey sand lens at 21'. 23-24' SILTY CLAY: Very dark gray (10YR 3/1). 24-30' CLAY: Black (10YR 2/1), stiff, firm, plastic, damp.USCSSM SC CH CH CL GRAPHICSurf. Elev. 143.764 143.76 142.76 141.76 140.76 139.76 138.76 137.76 136.76 135.76 134.76 133.76 132.76 131.76 130.76 129.76 128.76 127.76 126.76 125.76 124.76 123.76 122.76 121.76 120.76 119.76 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TOC Elev: : 146.431 Well: PW-02 BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (50-60') WELL CONSTRUCTION Bentonite Grout : 0-45.5'Bentonite Seal : 45.5-47.5'Sand Filter Pack : 47.5-60' Date Started : 7/29/2019 Date Completed : 7/30/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado NAD83 1983 : NC SP Coordinates Northing : 399779.064 Easting : 2050649.466 Completed Depth: : 60' Boring Depth : 67' Elevation/TOC : 143.764 / 146.431 DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-02.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/29/2019 Date Completed : 7/30/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-02 (Page 2 of 3) NAD83 1983 : NC SP Coordinates Northing : 399779.064 Easting : 2050649.466 Completed Depth: : 60' Boring Depth : 67' Elevation/TOC : 143.764 / 146.431 Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 DESCRIPTION 30-45' CLAYEY SAND:Moderate to dark reddish brown (5R 4/3 & 3/4), very fine to fine grained, soft, loose, moist to saturated. 45-60' SILTY SAND:Light brownish gray (10YR 6/2) from 45-51', very fine to fine grained, loose, soft, moist to saturated.USCSCL SC SM GRAPHICSurf. Elev. 143.764 118.76 117.76 116.76 115.76 114.76 113.76 112.76 111.76 110.76 109.76 108.76 107.76 106.76 105.76 104.76 103.76 102.76 101.76 100.76 99.76 98.76 97.76 96.76 95.76 94.76 Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 TOC Elev: : 146.431 Well: PW-02 BentoniteGrout BentoniteSeal SandFiler Pack Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (50-60') WELL CONSTRUCTION Bentonite Grout : 0-45.5'Bentonite Seal : 45.5-47.5'Sand Filter Pack : 47.5-60' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-02.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/29/2019 Date Completed : 7/30/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-02 (Page 3 of 3) NAD83 1983 : NC SP Coordinates Northing : 399779.064 Easting : 2050649.466 Completed Depth: : 60' Boring Depth : 67' Elevation/TOC : 143.764 / 146.431 Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 DESCRIPTION Oxidation layer (orange) at 51'. Color change to brownish gray at 55'. 60-65' CLAY: Black (10YR 2/1), stiff, firm, mica present, damp. Lignite layer at 61'. 65-67' SILTY SAND:Very dark gray (10YR 3/1), soft, loose, micaceous, damp to moist. End of boring at 67'.USCSSM SM SM CL SM GRAPHICSurf. Elev. 143.764 93.76 92.76 91.76 90.76 89.76 88.76 87.76 86.76 85.76 84.76 83.76 82.76 81.76 80.76 79.76 78.76 77.76 76.76 75.76 74.76 73.76 72.76 71.76 70.76 69.76 Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 TOC Elev: : 146.431 Well: PW-02 SandFiler Pack Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (50-60') WELL CONSTRUCTION Bentonite Grout : 0-45.5'Bentonite Seal : 45.5-47.5'Sand Filter Pack : 47.5-60' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-03.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/23/2019 Date Completed : 7/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-03 (Page 1 of 3) NAD83 1983 : NC SP Coordinates Northing : 397339.809 Easting : 2050765.319 Completed Depth: : 45' Boring Depth : 67' Elevation/TOC : 144.968 / 147.967 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DESCRIPTION 0-2' SILTY SAND: Sand with silt. 2-7.5' CLAYEY SAND: Yellowish red brown (7.5YR 5/4), fine to medium to coarse grained, loose to stiff, friable, red oxidation, damp. Clay lens at 5'. 7.5-12.5' SAND: Yellowish brown (10YR 5/3), poorly sorted, medium to coarse grained, soft, loose, damp to moist. At 9', yellowish red (10YR 6/6), fine grained sand, well sorted, saturated. 12.5-16' CLAY WITH SAND:Light brownish gray (10YR 3/1), red oxidation (7.5YR 5/8) reddish yellow. Sand lens at 15'. 16-28' CLAY:Dark gray (10YR 3/1), very stiff, hard, moderate to high plasticity, sub-angular blocks, damp.USCSSM SC SP CL CL GRAPHICSurf. Elev. 144.968 144.97 143.97 142.97 141.97 140.97 139.97 138.97 137.97 136.97 135.97 134.97 133.97 132.97 131.97 130.97 129.97 128.97 127.97 126.97 125.97 124.97 123.97 122.97 121.97 120.97 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TOC Elev: : 147.967 Well: PW-03 BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (35-45') WELL CONSTRUCTION Bentonite Grout : 0-31'Bentonite Seal : 31-33'Sand Filter Pack : 33-45' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-03.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/23/2019 Date Completed : 7/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-03 (Page 2 of 3) NAD83 1983 : NC SP Coordinates Northing : 397339.809 Easting : 2050765.319 Completed Depth: : 45' Boring Depth : 67' Elevation/TOC : 144.968 / 147.967 Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 DESCRIPTION 25-35' CLAY continued: Clay with gravel and lignite layer at 28'. Clay with silt and trace of mica at 30'. 35-45' SILTY SAND:Bluish light gray, well sorted, very fine to fine grained, soft, loose, trace of mica, moist. Lignite layer at 42'. 45-50' CLAY:Black, firm, stiff, damp.USCSCL SM CL GRAPHICSurf. Elev. 144.968 119.97 118.97 117.97 116.97 115.97 114.97 113.97 112.97 111.97 110.97 109.97 108.97 107.97 106.97 105.97 104.97 103.97 102.97 101.97 100.97 99.97 98.97 97.97 96.97 95.97 Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 TOC Elev: : 147.967 Well: PW-03 BentoniteGrout BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (35-45') WELL CONSTRUCTION Bentonite Grout : 0-31'Bentonite Seal : 31-33'Sand Filter Pack : 33-45' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-03.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/23/2019 Date Completed : 7/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-03 (Page 3 of 3) NAD83 1983 : NC SP Coordinates Northing : 397339.809 Easting : 2050765.319 Completed Depth: : 45' Boring Depth : 67' Elevation/TOC : 144.968 / 147.967 Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 DESCRIPTION 50-54' SILTY SAND:Medium to dark gray, well sorted, medium to coarse grained, trace of mica, loose, stiff, intermittent lignite lenses, moist to saturated. 54-58' CLAY:Black with blue mottling, firm, stiff, intermittent sand lenses, damp. 58-67' SAND:Light gray to olive gray with intermittent dark gray lignite layers, well sorted, very fine to fine grained, trace of mica, moist to saturated. End of boring at 67'.USCSSM CL SP GRAPHICSurf. Elev. 144.968 94.97 93.97 92.97 91.97 90.97 89.97 88.97 87.97 86.97 85.97 84.97 83.97 82.97 81.97 80.97 79.97 78.97 77.97 76.97 75.97 74.97 73.97 72.97 71.97 70.97 Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 TOC Elev: : 147.967 Well: PW-03 Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (35-45') WELL CONSTRUCTION Bentonite Grout : 0-31'Bentonite Seal : 31-33'Sand Filter Pack : 33-45' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-04.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/23/2019 Date Completed : 7/24/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-04 (Page 1 of 1) NAD83 1983 : NC SP Coordinates Northing : 394659.549 Easting : 2050940.657 Completed Depth: : 27' Boring Depth : 32' Elevation/TOC : 94.736 / 97.751 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 DESCRIPTION USCSGRAPHICSurf. Elev. 94.736 94.74 93.74 92.74 91.74 90.74 89.74 88.74 87.74 86.74 85.74 84.74 83.74 82.74 81.74 80.74 79.74 78.74 77.74 76.74 75.74 74.74 73.74 72.74 71.74 70.74 69.74 68.74 67.74 66.74 65.74 64.74 63.74 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 TOC Elev: : 97.751 Well: PW-04 BentoniteGrout BentoniteSeal SandFiler Pack PVCCasing ExpandablePlug Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (17-27') WELL CONSTRUCTION Bentonite Grout : 0-13'Bentonite Seal : 13-15'Sand Filter Pack : 15-27' 0-18' SAND: Brown (10YR 5/3), fine to coarse grained, poorly sorted, loose, soft, damp to moist. Becomes more coarse with depth.Intermittent clay lenses. Color change at 12', clean sand. Reddish yellowish oxidation at 14'. Color change to olive/dark brown and becomes coarser grained at 17'. 18-27' SILTY SAND:Bluish light gray to olive, medium to coarse grained, loose, soft, trace of mica, moist. Very fine to fine grained at 24'. 27-30' CLAY:Dark gray/black, trace of mica, firm, stiff, moist. 30-32' SILTY SAND:Light gray, very fine to fine grained.End of boring at 32'. SP SM CL SM DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-05.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 LOG OF BORING: PW-05 (Page 1 of 3) Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DESCRIPTION 0-2' SILTY SAND: Brown, loose, damp. 2-12.5' CLAYEY SAND: Yellowish brown (7.5YR 5/6), fine to medium grained, loose, sub-angular blocky grains, damp. 12.5-14' CLAYEY SILT WITH SAND:Pinkish gray (7.5YR 6/2), sub-angular blocky grains, pink oxidation, damp. 14-20' SAND WITH SILT:Well sorted, (5Y 6/3), very fine to fine grained sand, loose, soft, damp.Very pale brown (10YR 8/2) at 15'.Yellow (10YR 8/6) at 16'. Silt decreases with depth. 20-45.5' SAND WITH SILT:Light gray (10YR 7/1), medium to coarse grained, intermittment orange oxidation layers.USCSSM SC ML SM SM GRAPHICSurf. Elev. 147.158 147.16 146.16 145.16 144.16 143.16 142.16 141.16 140.16 139.16 138.16 137.16 136.16 135.16 134.16 133.16 132.16 131.16 130.16 129.16 128.16 127.16 126.16 125.16 124.16 123.16 122.16 121.16 120.16 119.16 118.16 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 TOC Elev: : 150.336 Well: PW-05 BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (65-75') WELL CONSTRUCTION Bentonite Grout : 0-60.5'Bentonite Seal : 60.5-63'Sand Filter Pack : 63-75' Date Started : 7/26/2019 Date Completed : 7/26/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado NAD83 1983 : NC SP Coordinates Northing : 395873.1 Easting : 2047812.929 Completed Depth: : 75' Boring Depth : 77' Elevation/TOC : 147.158 / 150.336 DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-05.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/26/2019 Date Completed : 7/26/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-05 (Page 2 of 3) NAD83 1983 : NC SP Coordinates Northing : 395873.1 Easting : 2047812.929 Completed Depth: : 75' Boring Depth : 77' Elevation/TOC : 147.158 / 150.336 Depth in feet 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 DESCRIPTION USCSGRAPHICSurf. Elev. 147.158 117.16 116.16 115.16 114.16 113.16 112.16 111.16 110.16 109.16 108.16 107.16 106.16 105.16 104.16 103.16 102.16 101.16 100.16 99.16 98.16 97.16 96.16 95.16 94.16 93.16 92.16 91.16 90.16 89.16 88.16 Depth in feet 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 TOC Elev: : 150.336 Well: PW-05 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (65-75') WELL CONSTRUCTION Bentonite Grout : 0-60.5'Bentonite Seal : 60.5-63'Sand Filter Pack : 63-75' Medium to coarse grained with depth. Moisture content increases with depth. 45.5-52' SILTY CLAY:Very dark gray (5Y 3/1) , trace amount of sand and mica present, soft, firm, plastic, damp to moist. 52-70' SAND:Yellowish brown (10YR 6/6), silt and mica present, well sorted, very fine to fine grained, loose, soft, micaceous, moist to saturated. SM CH SP DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-05.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/26/2019 Date Completed : 7/26/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-05 (Page 3 of 3) NAD83 1983 : NC SP Coordinates Northing : 395873.1 Easting : 2047812.929 Completed Depth: : 75' Boring Depth : 77' Elevation/TOC : 147.158 / 150.336 Depth in feet 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 DESCRIPTION Color change to dark gray at 68'. 70-71' CLAY: Dark gray, firm. 71-75' SAND:Dark gray, well sorted, medium to coarse grained, very loose, micaceous, lignite with clay layer at 73', very moist. 75-77' CLAY. End of boring at 77'.USCSSP SP CL SP CL GRAPHICSurf. Elev. 147.158 87.16 86.16 85.16 84.16 83.16 82.16 81.16 80.16 79.16 78.16 77.16 76.16 75.16 74.16 73.16 72.16 71.16 70.16 69.16 68.16 67.16 66.16 65.16 64.16 63.16 62.16 61.16 60.16 59.16 58.16 Depth in feet 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 TOC Elev: : 150.336 Well: PW-05 BentoniteGrout BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (65-75') WELL CONSTRUCTION Bentonite Grout : 0-60.5'Bentonite Seal : 60.5-63'Sand Filter Pack : 63-75' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-06.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 LOG OF BORING: PW-06 (Page 1 of 1) Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 DESCRIPTION 0-5' SILTY SAND:Light gray, poorly sorted. 5-27' SAND WITH SILT:Light grayish brown (10YR 6/2), loose, soft, fine to coarse grained, poorly sorted, damp to moist. Coarseness increases with depth. Orange oxidation layer at 16'. Light tan, well sorted, very fine to fine grained at 20'. 27-35' SILTY CLAY:Black to very dark brown (10YR 2/1), stiff, firm, plastic, damp to moist. Lignite layer at 34'. 35-37' SAND WITH SILT:Very dark gray (10YR 3/1), loose, soft, very fine to fine grained, micaceous, damp to moist. End of boring at 37'.USCSML SP SP CH SP GRAPHICSurf. Elev. 144.755 144.76 143.76 142.76 141.76 140.76 139.76 138.76 137.76 136.76 135.76 134.76 133.76 132.76 131.76 130.76 129.76 128.76 127.76 126.76 125.76 124.76 123.76 122.76 121.76 120.76 119.76 118.76 117.76 116.76 115.76 114.76 113.76 112.76 111.76 110.76 109.76 108.76 107.76 106.76 105.76 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 TOC Elev: : 147.691 Well: PW-06 BentoniteGrout BentoniteSeal SandFiler Pack PVCCasing ExpandablePlug Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (19-29') WELL CONSTRUCTION Bentonite Grout : 0-15'Bentonite Seal : 15-17'Sand Filter Pack : 17-29' Date Started : 7/29/2019 Date Completed : 7/29/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado NAD83 1983 : NC SP Coordinates Northing : 392868 Easting : 2045288.765 Completed Depth: : 29' Boring Depth : 37' Elevation/TOC : 144.755 / 147.691 DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-07.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/24/2019 Date Completed : 7/24/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-07 (Page 1 of 2) NAD83 1983 : NC SP Coordinates Northing : 390847.706 Easting : 2049258.256 Completed Depth: : 38 Boring Depth : 47' Elevation/TOC : 144.9 / 148.16 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DESCRIPTION 0-2.5' SILTY SAND:Red yellow (7.5YR 5/8), fine grained, damp. 2.5-7' SAND:Red yellow (7.5YR 5/8), trace of clay, intermittent clay lens throughout, damp. 7-10' SAND:Brown (7.5YR 5/3), fine to medium grained, wet. 10-27' SAND:Pinkish gray (7.5YR 8/2) to light gray at 14', fine to medium sand at 13' then back to fine sand at 14', intermittent clay lens throughout (>3mm), dry. Light gray (7.5YR 8/2), fine grained sand at 15'. At 16', orange brown, very fine sand, damp. Light gray to gray, fine grained sand, damp. Sandy clay at 20'. White (8/1), very fine sand, heavy metals present.USCSSM SP SP SP SP SP SP GRAPHICSurf. Elev. 144.9 144.9 143.9 142.9 141.9 140.9 139.9 138.9 137.9 136.9 135.9 134.9 133.9 132.9 131.9 130.9 129.9 128.9 127.9 126.9 125.9 124.9 123.9 122.9 121.9 120.9 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TOC Elev: : 148.16 Well: PW-07 BentoniteGrout BentoniteSeal PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (28-38') WELL CONSTRUCTION Bentonite Grout : 0-23.5Bentonite Seal : 23.5-26'Sand Filter Pack : 26-38' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-07.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/24/2019 Date Completed : 7/24/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-07 (Page 2 of 2) NAD83 1983 : NC SP Coordinates Northing : 390847.706 Easting : 2049258.256 Completed Depth: : 38 Boring Depth : 47' Elevation/TOC : 144.9 / 148.16 Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 DESCRIPTION Red yellow (7.5YR 7/8), medium grained sand, coarse grained at 26.5'.Gray (7.5YR 7/1), wet.Heavy metals present. 27-37' SAND:Gray (7.5YR 6/1), medium to coarse grained, saturated. At 32', pinkish white (7.5YR), sub-angular, medium grained, moist. Light gray at 35'. At 37', orange yellow very fine sand, mica present. 38-39' SAND:Brown (7.5YR 5/6), fine grained, wet. 39-40' SAND WITH SILT:Clay lens at 39.5', mica present, damp. 40-46' CLAY WITH SAND:Dark gray, medium stiff, light gray with mica sand layers throughout. Brown medium grained sand at 46-47'. End of boring at 47'.USCSSP SP SP ML SC SC GRAPHICSurf. Elev. 144.9 119.9 118.9 117.9 116.9 115.9 114.9 113.9 112.9 111.9 110.9 109.9 108.9 107.9 106.9 105.9 104.9 103.9 102.9 101.9 100.9 99.9 98.9 97.9 96.9 95.9 Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 TOC Elev: : 148.16 Well: PW-07 BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (28-38') WELL CONSTRUCTION Bentonite Grout : 0-23.5Bentonite Seal : 23.5-26'Sand Filter Pack : 26-38' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-09.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 LOG OF BORING: PW-09 (Page 1 of 3) Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DESCRIPTION USCSGRAPHICSurf. Elev. Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TOC Elev: : Well: PW-09 BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (44-54') WELL CONSTRUCTION Bentonite Grout : 0-40'Bentonite Seal : 40-42'Sand Filter Pack : 42-54' Date Started : 8/12/2019 Date Completed : 8/12/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 54' Boring Depth : 69' Elevation/TOC : 0-8' SILTY SAND: Light brown to tan, fine grained to 7', medium grained at 8-9', loose, dry. 8-9' SAND WITH SILT: Light brown, medium grained, 1/2" clay lens at 8.5', damp. 9-11' SAND: Brown, medium grained, 1/2" organic layer at 10', wet. 11-18' SILTY SAND:Brown, medium grained, trace of mica from 11-15', wet throughout. 2" organic layer at 15', abundant mica starting at 15'. 18-19': Brown, fine grained, abundant mica, wet. 19-21.5': Brown to light brown, fine to medium grained, abundant mica, wet. 21-5-22.5' SILTY SAND: Gray, fine to medium grained, abundant mica, wet. 2" gray clay lens at 23' and 23.5', firm, damp. 24-29' SAND: Fine grained, abundant organics, abundant mica. SP SP SP SM SM SM SP DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-09.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/12/2019 Date Completed : 8/12/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-09 (Page 2 of 3) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 54' Boring Depth : 69' Elevation/TOC : Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 DESCRIPTION 2" clay lens at 28'. 29-31' SILTY SAND:Brown, fine grained, mica present, wet. 31-32' SILTY SAND: Gray, fine grained, abundant mica, 4" clay lens at 31', coarse sand at 32', firm, moist. 32-34' CLAYEY SAND: Gray, abundant mica, organics present. 34-35' CLAY: Gray, firm, very fine grained sand lens throughout. 35-39': Dark gray, fine sand layers throughout, stiff, mica rich, organic rich from 36-38', damp. 39-41' SAND WITH CLAY: Dark gray, medium to coarse grained, small clay lens throughout, wood fragments at 39.5', wet.41-42': Coarse grained sand, very loose, wet.42-43': Clayey sand, wood fragments, lignite present, approximate 2" clay lens at 42.5', wet. 43-46' SAND:Dark gray, fine grained, loose, mica present, approximate 3" clay lens at 43.5', wet. 46-51.5' CLAY:Dark gray, stiff, trace of mica, damp.USCSSP SP SM ML SC CL CL SC SP CL GRAPHICSurf. Elev. Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 TOC Elev: : Well: PW-09 BentoniteGrout BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (44-54') WELL CONSTRUCTION Bentonite Grout : 0-40'Bentonite Seal : 40-42'Sand Filter Pack : 42-54' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-09.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/12/2019 Date Completed : 8/12/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-09 (Page 3 of 3) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 54' Boring Depth : 69' Elevation/TOC : Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 DESCRIPTION 51.5-53' CLAYEY SAND WITH SILT:Dark gray, coarse grained, 2" clay lens at 52', wet. 53-56' CLAY: Dark gray, stiff, damp. 56-59' CLAYEY SAND WITH SILT:Light gray, fine to medium grained, trace of mica, damp. 59-62': Very fine to fine grained. 62-65.5' SILTY CLAY:Light gray, stiff, mica present, damp. 65.5-69' CLAYEY SAND WITH SILT:Fine to medium grained, loose at 68.5', abundant mica, heavy minerals abundant, moist. End of boring at 69'.USCSCL SC CL SC CH SC GRAPHICSurf. Elev. Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 TOC Elev: : Well: PW-09 SandFiler Pack Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (44-54') WELL CONSTRUCTION Bentonite Grout : 0-40'Bentonite Seal : 40-42'Sand Filter Pack : 42-54' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-10R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/8/2019 Date Completed : 8/9/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-10R (Page 1 of 3) NAD83 1983 : NC SP Coordinates Northing : 398516.115 Easting : 2051936.585 Completed Depth: : 68' Boring Depth : 79' Elevation/TOC : 73.28 / 75.9 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DESCRIPTION 0-3.5' SILTY SAND:Brown, fine grained, loose, organic roots present, damp. 3.5-9' CLAYEY SAND:Light brown, fine grained, firm chunks that break apart, 3" clay lens at 8', dry. 9-11' CLAYEY SAND: Gray, fine grained, mica present, damp. 11-15.5' SAND:Orange brown, medium grained, moist. 15.5-18' SAND: Gray, medium grained, lignite layers at 17.5' and 16', moist. 18-20' CLAY: Dark gray with light gray, fine sand lens throughout, firm. 20-21' SAND: Brown, medium grained, wet. 21-34' CLAY: Dark gray clay with fine grained and light gray sand lens, firm.USCSSM SC SC SP SP CL SP CL GRAPHICSurf. Elev. 73.28 73.28 72.28 71.28 70.28 69.28 68.28 67.28 66.28 65.28 64.28 63.28 62.28 61.28 60.28 59.28 58.28 57.28 56.28 55.28 54.28 53.28 52.28 51.28 50.28 49.28 48.28 47.28 46.28 45.28 44.28 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 TOC Elev: 75.9 Well: PW-10R BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (57-67') WELL CONSTRUCTION Bentonite Grout : 0-52.5'Bentonite Seal : 52.5-54.5'Sand Filter Pack : 54.5-68' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-10R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/8/2019 Date Completed : 8/9/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-10R (Page 2 of 3) NAD83 1983 : NC SP Coordinates Northing : 398516.115 Easting : 2051936.585 Completed Depth: : 68' Boring Depth : 79' Elevation/TOC : 73.28 / 75.9 Depth in feet 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 DESCRIPTION 34-38.5' SAND: Dark gray, fine grained, moist, wood fragments at 35', abundant mica, light gray layer at 37.5', wood fragments at 38.5'. 38.5-39.5' CLAYEY SAND: Dark gray, fine grained, damp, wood fragment present, abundant mica. 39.5-42' CLAY: Dark gray, firm, sand layer at 41', wood fragments at 39.5', damp. 42-44.5': Layers of light gray, fine sands, interbedded. 44.5-57': Fine sand from 45.5-45' and at 46', damp. 57-59' SAND: Dark gray, medium grained, abundant mica, moist. 59-60' CLAY: Dark gray, firm, mica present.USCSCL SP SC CL SP CL GRAPHICSurf. Elev. 73.28 43.28 42.28 41.28 40.28 39.28 38.28 37.28 36.28 35.28 34.28 33.28 32.28 31.28 30.28 29.28 28.28 27.28 26.28 25.28 24.28 23.28 22.28 21.28 20.28 19.28 18.28 17.28 16.28 15.28 14.28 Depth in feet 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 TOC Elev: 75.9 Well: PW-10R BentoniteGrout BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (57-67') WELL CONSTRUCTION Bentonite Grout : 0-52.5'Bentonite Seal : 52.5-54.5'Sand Filter Pack : 54.5-68' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-10R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/8/2019 Date Completed : 8/9/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-10R (Page 3 of 3) NAD83 1983 : NC SP Coordinates Northing : 398516.115 Easting : 2051936.585 Completed Depth: : 68' Boring Depth : 79' Elevation/TOC : 73.28 / 75.9 Depth in feet 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 DESCRIPTION 60-67.5' CLAYEY SAND: Light gray, medium grained, moist. 67.5-72' SILTY CLAY: Light gray, hard. 72-75' CLAYEY SAND: Light gray, fine grained transitioning to medium grained at 75', firm from 72-74.5', loose at 75'. 75-78.5': Light gray, fine grained, firm. 78.5-79' SILTY CLAY: Light gray, hard. End of boring at 79'.USCSSC CH SC CH GRAPHICSurf. Elev. 73.28 13.28 12.28 11.28 10.28 9.28 8.28 7.28 6.28 5.28 4.28 3.28 2.28 1.28 .28 -.72 -1.72 -2.72 -3.72 -4.72 -5.72 -6.72 -7.72 -8.72 -9.72 -10.72 -11.72 -12.72 -13.72 -14.72 -15.72 Depth in feet 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 TOC Elev: 75.9 Well: PW-10R SandFiler PackScreen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (57-67') WELL CONSTRUCTION Bentonite Grout : 0-52.5'Bentonite Seal : 52.5-54.5'Sand Filter Pack : 54.5-68' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-11.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/25/2019 Date Completed : 7/26/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-11 (Page 1 of 3) NAD83 1983 : NC SP Coordinates Northing : 394354.363 Easting : 2052226.721 Completed Depth: : 64' Boring Depth : 77' Elevation/TOC : 70.187 / 73.263 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 DESCRIPTION 0-4' SILTY SAND: Brown (10YR 5/3), trace of clay, very fine to fine grained, sub-angular blocky, damp. 4-6' SAND WITH SILT: Light brown (10YR 6/4), very fine to fine grained, loose, damp. 6-10' SILTY SAND WITH CLAY:Grayish brown (10YR 5/1), very fine to fine grained, sub-angular blocky, damp. 10-65' SAND WITH SILT:Light yellowish brown (10YR 6/4), trace of clay, loose, sub-angular, damp. At 17, medium to coarse grained with depth, intermittent clay lenses. At 24', intermittent light gray to light yellowish brown.USCSSM SP SM SP GRAPHICSurf. Elev. 70.187 70.19 69.19 68.19 67.19 66.19 65.19 64.19 63.19 62.19 61.19 60.19 59.19 58.19 57.19 56.19 55.19 54.19 53.19 52.19 51.19 50.19 49.19 48.19 47.19 46.19 45.19 44.19 43.19 42.19 41.19 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 TOC Elev: : 73.263 Well: PW-11 BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (53-63') WELL CONSTRUCTION Bentonite Grout : 0-49'Bentonite Seal : 49-51'Sand Filter Pack : 51-64' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-11.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/25/2019 Date Completed : 7/26/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-11 (Page 2 of 3) NAD83 1983 : NC SP Coordinates Northing : 394354.363 Easting : 2052226.721 Completed Depth: : 64' Boring Depth : 77' Elevation/TOC : 70.187 / 73.263 Depth in feet 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 DESCRIPTION At 32', color change to dark yellowish brown (10YR 4/5), medium to coarse grained increases with depth. 4" black clay layer at 44', firm, stiff, damp. At 46.5', sand with silt, medium to coarse grained, color change (10YR 3/1). At 52', very dark gray, moist.Thick lignite and clay layer. At 56', intermittent organic matter, black color with wood chips present, lignite layers.USCSSP SP SP GRAPHICSurf. Elev. 70.187 40.19 39.19 38.19 37.19 36.19 35.19 34.19 33.19 32.19 31.19 30.19 29.19 28.19 27.19 26.19 25.19 24.19 23.19 22.19 21.19 20.19 19.19 18.19 17.19 16.19 15.19 14.19 13.19 12.19 11.19 Depth in feet 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 TOC Elev: : 73.263 Well: PW-11 BentoniteGrout BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (53-63') WELL CONSTRUCTION Bentonite Grout : 0-49'Bentonite Seal : 49-51'Sand Filter Pack : 51-64' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-11.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/25/2019 Date Completed : 7/26/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-11 (Page 3 of 3) NAD83 1983 : NC SP Coordinates Northing : 394354.363 Easting : 2052226.721 Completed Depth: : 64' Boring Depth : 77' Elevation/TOC : 70.187 / 73.263 Depth in feet 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 DESCRIPTION USCSGRAPHICSurf. Elev. 70.187 10.19 9.19 8.19 7.19 6.19 5.19 4.19 3.19 2.19 1.19 .19 -.81 -1.81 -2.81 -3.81 -4.81 -5.81 -6.81 -7.81 -8.81 -9.81 -10.81 -11.81 -12.81 -13.81 -14.81 -15.81 -16.81 -17.81 -18.81 Depth in feet 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 TOC Elev: : 73.263 Well: PW-11 SandFiler PackScreen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (53-63') WELL CONSTRUCTION Bentonite Grout : 0-49'Bentonite Seal : 49-51'Sand Filter Pack : 51-64' 65-75' SILTY SAND:Light bluish gray (2.5Y 6/1), clay and traces of mica present, sub-angular blocky, very stiff and dense, damp to moist.Friable when dry. 75-77' CLAYEY SILT: Bluish dark gray (2.5Y 4/1), sand and trace of mica present, sub-angular, stiff, damp. End of boring at 77'. SP SM ML DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-12.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/30/2019 Date Completed : 8/1/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-12 (Page 1 of 5) NAD83 1983 : NC SP Coordinates Northing : 399500.447 Easting : 2047063.51 Completed Depth: : 119' Boring Depth : 147' Elevation/TOC : 148.054 / 150.61 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 DESCRIPTION 0-2' SILTY SAND:Light gray and tan, loose. 2-12' CLAYEY SAND:Yellowish brown (7.5YR 5/4), very fine to fine grained, soft, sub-angular blocky, damp. Clay content decreases with depth. 12-35' SAND WITH SILT:Yellowish brown (7.5YR 6/3), very fine to fine grained, loose, soft, damp to moist. At 16', changes to medium to coarse grained, color lightens. At 20', pale brown (10YR 6/3), coarse grained sand. At 27', Intermittent thin clay lenses. 6" black clay layer at 33', firm, stiff, damp, followed by a 6" dark gray silty clay layer that has orange oxidation veins, firm, stiff, damp.USCSSM SC SP GRAPHICSurf. Elev. 148.054 148.05 147.05 146.05 145.05 144.05 143.05 142.05 141.05 140.05 139.05 138.05 137.05 136.05 135.05 134.05 133.05 132.05 131.05 130.05 129.05 128.05 127.05 126.05 125.05 124.05 123.05 122.05 121.05 120.05 119.05 118.05 117.05 116.05 115.05 114.05 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 TOC Elev: : 150.61 Well: PW-12 BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (109-119') WELL CONSTRUCTION Bentonite Grout : 0-103'Bentonite Seal : 103-106'Sand Filter Pack : 106-119' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-12.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/30/2019 Date Completed : 8/1/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-12 (Page 2 of 5) NAD83 1983 : NC SP Coordinates Northing : 399500.447 Easting : 2047063.51 Completed Depth: : 119' Boring Depth : 147' Elevation/TOC : 148.054 / 150.61 Depth in feet 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 DESCRIPTION 34-39' SAND:Yellowish brown, fine to medium grained, loose, soft, damp to moist. 39-44' CLAYEY SAND WITH SILT:Dark to very dark gray (10YR 3/1), soft, loose, damp to moist.Intermittent clay with mica lenses throughout, black, stiff, firm, damp to moist. 44-82' SAND WITH SILT:Yellowish brown (10YR 5/6), fine to medium grained, loose, damp to moist. Intermittent laminated silty clay, dark gray lenses throughout. At 51.5', lignite layer, color change toolive black/brownish black (5Y 2/1). At 57', light olive gray (5Y 6/1), loose, saturated. At 62.5', Lignite layer followed by interbedded laminated silty clay lenses/layers. Lignite layer at 68'.Very fine to fine grained at 68.5'.USCSSP SC SP GRAPHICSurf. Elev. 148.054 113.05 112.05 111.05 110.05 109.05 108.05 107.05 106.05 105.05 104.05 103.05 102.05 101.05 100.05 99.05 98.05 97.05 96.05 95.05 94.05 93.05 92.05 91.05 90.05 89.05 88.05 87.05 86.05 85.05 84.05 83.05 82.05 81.05 80.05 79.05 Depth in feet 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 TOC Elev: : 150.61 Well: PW-12 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (109-119') WELL CONSTRUCTION Bentonite Grout : 0-103'Bentonite Seal : 103-106'Sand Filter Pack : 106-119' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-12.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/30/2019 Date Completed : 8/1/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-12 (Page 3 of 5) NAD83 1983 : NC SP Coordinates Northing : 399500.447 Easting : 2047063.51 Completed Depth: : 119' Boring Depth : 147' Elevation/TOC : 148.054 / 150.61 Depth in feet 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 DESCRIPTION USCSGRAPHICSurf. Elev. 148.054 78.05 77.05 76.05 75.05 74.05 73.05 72.05 71.05 70.05 69.05 68.05 67.05 66.05 65.05 64.05 63.05 62.05 61.05 60.05 59.05 58.05 57.05 56.05 55.05 54.05 53.05 52.05 51.05 50.05 49.05 48.05 47.05 46.05 45.05 44.05 Depth in feet 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 TOC Elev: : 150.61 Well: PW-12 BentoniteGrout BentoniteSeal Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (109-119') WELL CONSTRUCTION Bentonite Grout : 0-103'Bentonite Seal : 103-106'Sand Filter Pack : 106-119' Changes to medium to coarse grained with depth. At 79', interbedded laminated silty clay layer then back to very fine to fine grained. 84-94' CLAY:Olive gray (5YR 2/1), stiff, plastic, firm, damp. At 90', intermittent lignite and sand layer. At 92', Lignite layer. 94-123' SAND WITH SILT:Olive gray (5Y 4/1), very fine to fine grained, interbedded laminated silty clay. SP SP CL SP DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-12.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/30/2019 Date Completed : 8/1/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-12 (Page 4 of 5) NAD83 1983 : NC SP Coordinates Northing : 399500.447 Easting : 2047063.51 Completed Depth: : 119' Boring Depth : 147' Elevation/TOC : 148.054 / 150.61 Depth in feet 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 DESCRIPTION Lignite layer at 108'. Increasing grain size with depth. Coarse grained 118-119'. Large pieces of lignite with clay 119-122'. Sand lense 122-123'. 123-130' CLAY:Olive gray, stiff, plastic, firm, damp. Coarse grained sand layer at 126'.Lignite layer from 127-129'. Silty clay from 129-130'. 130-143' CLAYEY SAND WITH SILT:Light olive gray, very fine to fine grained, loose, moist. Clay lense at 139'.USCSSP SP CL SC GRAPHICSurf. Elev. 148.054 43.05 42.05 41.05 40.05 39.05 38.05 37.05 36.05 35.05 34.05 33.05 32.05 31.05 30.05 29.05 28.05 27.05 26.05 25.05 24.05 23.05 22.05 21.05 20.05 19.05 18.05 17.05 16.05 15.05 14.05 13.05 12.05 11.05 10.05 9.05 Depth in feet 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 TOC Elev: : 150.61 Well: PW-12 BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (109-119') WELL CONSTRUCTION Bentonite Grout : 0-103'Bentonite Seal : 103-106'Sand Filter Pack : 106-119' DRAFT - Pending 09-10-2019 F:\Logs\Fayetteville\PW-12.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 7/30/2019 Date Completed : 8/1/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Danielle Delgado Boring Log By : Danielle Delgado LOG OF BORING: PW-12 (Page 5 of 5) NAD83 1983 : NC SP Coordinates Northing : 399500.447 Easting : 2047063.51 Completed Depth: : 119' Boring Depth : 147' Elevation/TOC : 148.054 / 150.61 Depth in feet 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 DESCRIPTION 143-147' SILTY CLAY WITH SAND:Olive gray (5Y 4/1), firm, hard, damp. End of boring at 147'.USCSSC CH GRAPHICSurf. Elev. 148.054 8.05 7.05 6.05 5.05 4.05 3.05 2.05 1.05 .05 -.95 -1.95 -2.95 -3.95 -4.95 -5.95 -6.95 -7.95 -8.95 -9.95 -10.95 -11.95 -12.95 -13.95 -14.95 -15.95 -16.95 -17.95 -18.95 -19.95 -20.95 -21.95 -22.95 -23.95 -24.95 -25.95 Depth in feet 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 TOC Elev: : 150.61 Well: PW-12 Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (109-119') WELL CONSTRUCTION Bentonite Grout : 0-103'Bentonite Seal : 103-106'Sand Filter Pack : 106-119' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-13.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 LOG OF BORING: PW-13 (Page 1 of 6) Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DESCRIPTION 0-5' CLAYEY SAND:Brown, medium dense, trace of gravel, poorly sorted, medium grained, moist. 5-7' SANDY CLAY:Brown, stiff, slightly plastic, moist. 7-20' SAND:Tan, loose, fine grained, well sorted, moist. Becoming coarse grained and medium dense at 17'. 20-27' SAND:Brown and tan, medium dense, coarse grained, well sorted, moist.USCSSC CL SW SW GRAPHICSurf. Elev. Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TOC Elev: : Well: PW-13 BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (120-130') WELL CONSTRUCTION Bentonite Grout : 0-115'Bentonite Seal : 115-118'Sand Filter Pack : 118-130' Date Started : 8/20/2019 Date Completed : 8/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Bret Nemeth Boring Log By : Bret Nemeth NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 130' Boring Depth : 147' Elevation/TOC : DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-13.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/20/2019 Date Completed : 8/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Bret Nemeth Boring Log By : Bret Nemeth LOG OF BORING: PW-13 (Page 2 of 6) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 130' Boring Depth : 147' Elevation/TOC : Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 DESCRIPTION 27-28.75' SAND: Brown, medium dense, coarse grained, well sorted with trace of gravel, moist. 28.75-29.5' CLAY: Brown, highly plastic, soft, wet. 29.5-40' SAND: Brown, loose, coarse grained, well sorted, moist.Becoming more tan at 30.5'. Becoming more brown at 32'. Becoming more tan at 33'. Becomes brown/tan mottled at 38.75'. 40-45.5': Brown/tan mottled, loose, well sorted, coarse grained, moist. 45.5-47' CLAYEY SAND: Brown, medium dense, well sorted, medium grained, moist. 47-51' SAND: Brown, loose, well sorted, coarse grained, moist. Becoming red/brown/tan mottled at 49'.USCSSW SW CH SW SC SW GRAPHICSurf. Elev. Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 TOC Elev: : Well: PW-13 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (120-130') WELL CONSTRUCTION Bentonite Grout : 0-115'Bentonite Seal : 115-118'Sand Filter Pack : 118-130' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-13.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/20/2019 Date Completed : 8/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Bret Nemeth Boring Log By : Bret Nemeth LOG OF BORING: PW-13 (Page 3 of 6) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 130' Boring Depth : 147' Elevation/TOC : Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 DESCRIPTION 51-62' SILTY SAND: Red, medium dense, coarse grained, well sorted, moist. At 55.5', becoming more brown, wet. At 57', becoming reddish brown. 60-62': Reddish brown, medium dense, coarse grained, well sorted, trace of clay at 61'. 62-64' CLAY: Gray, stiff, moderately plastic, moist. 64-66.5' SAND: Gray, dense, medium grained, well sorted, trace of silt, moist. 66.5-67' CLAY: Dark gray, stiff, highly plastic, moist. 67-69' SILTY SAND: Dark gray, dense, medium grained, well sorted, wet. 69-79.5' CLAY: Gray, stiff, highly plastic, moist. At 70', dark gray, very stiff, micaceous.USCSSW SM CH SW CH SM CH GRAPHICSurf. Elev. Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 TOC Elev: : Well: PW-13 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (120-130') WELL CONSTRUCTION Bentonite Grout : 0-115'Bentonite Seal : 115-118'Sand Filter Pack : 118-130' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-13.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/20/2019 Date Completed : 8/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Bret Nemeth Boring Log By : Bret Nemeth LOG OF BORING: PW-13 (Page 4 of 6) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 130' Boring Depth : 147' Elevation/TOC : Depth in feet 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 DESCRIPTION Gray to dark gray, very stiff, highly plastic, micaceous, moist. 79.5-81' SILTY SAND: Dark gray, dense, coarse grained, well sorted, wet. 81-82.75' CLAY: Dark gray, very stiff, highly plastic, micaceous, moist. 82.75-83.5' SILTY SAND: Dark gray, dense, coarse grained, well sorted, wet. 83.5-85' CLAY: Dark gray, very stiff, highly plastic, micaceous, moist. 85-86.5' SILTY SAND: Dark gray, dense, coarse grained, well sorted with trace of clay, moist. 86.5-91' CLAY: Dark gray, very stiff, highly plastic, micaceous, moist. 91-97' SILTY SAND: Gray, dense, coarse grained, well sorted, trace of organic erratics, moist. 97-99' CLAY: Dark gray, very stiff, highly plastic, micaceous, moist. 99-110.5' SILTY SAND: Dark gray, dense, coarse grained, well sorted, some clay, wet.USCSCH SM CH SM CH SM CH SM CH SM GRAPHICSurf. Elev. Depth in feet 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 TOC Elev: : Well: PW-13 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (120-130') WELL CONSTRUCTION Bentonite Grout : 0-115'Bentonite Seal : 115-118'Sand Filter Pack : 118-130' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-13.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/20/2019 Date Completed : 8/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Bret Nemeth Boring Log By : Bret Nemeth LOG OF BORING: PW-13 (Page 5 of 6) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 130' Boring Depth : 147' Elevation/TOC : Depth in feet 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 DESCRIPTION 100-110.5': Dark gray silty sand with some clay, dense, coarse grained, well sorted, wet. 110.5-111.5' CLAY: Dark gray, very stiff, highly plastic, micaceous, moist. 111.5-112' SAND WITH CLAY: Dark gray, dense, medium grained, well sorted, wet. 112-115' CLAY: Dark gray, very stiff, highly plastic, micaceous, moist. 115-117.75' SAND: Light gray, medium dense, medium grained, well sorted, moist. 117.75-118.5' CLAY: Dark gray, very stiff, highly plastic, moist to wet. 118.5-118.75' SAND: Red, dense, medium grained, well sorted, wet. 118.75-125.5' CLAY: Dark gray, very stiff, highly plastic, micaceous, moist. Becoming wet at 125'.USCSSM CH SC CH SW CHSW CH GRAPHICSurf. Elev. Depth in feet 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 TOC Elev: : Well: PW-13 BentoniteGrout BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (120-130') WELL CONSTRUCTION Bentonite Grout : 0-115'Bentonite Seal : 115-118'Sand Filter Pack : 118-130' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-13.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/20/2019 Date Completed : 8/23/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Bret Nemeth Boring Log By : Bret Nemeth LOG OF BORING: PW-13 (Page 6 of 6) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 130' Boring Depth : 147' Elevation/TOC : Depth in feet 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 DESCRIPTION 125.5-126' SILTY SAND: Gray, dense, medium grained, well sorted, wet. 126-127' CLAY: Dark gray, very stiff, highly plastic, moist to wet. 127-130' SILTY SAND: Light gray, dense, medium grained, well sorted, wet. 130-140' SILTY CLAY: Gray, stiff, moderately plastic, moist. Cape Fear Confining at 132'.Becoming light gray. 140-142' SILTY CLAY: Light gray, stiff, moderately plastic, moist. 142-142.5' SILTY SAND: Light gray, dense, fine grained, well sorted, wet. 142.5-147' SILTY CLAY: Light gray, stiff, moderately plastic, moist. End of boring at 147' bgs.USCSCHSM CH SM CL CL SM CL GRAPHICSurf. Elev. Depth in feet 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 TOC Elev: : Well: PW-13 SandFiler Pack Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (120-130') WELL CONSTRUCTION Bentonite Grout : 0-115'Bentonite Seal : 115-118'Sand Filter Pack : 118-130' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-14.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 LOG OF BORING: PW-14 (Page 1 of 8) Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 DESCRIPTION 0-1' SAND: First inch, topsoil, grass, and rock then light tan medium grained sand with little sand silt pockets, slightly damp.1-2': No organics. 2-3': Orangish brown fine sand with very little clay, damp. 3-4': Orangish brown with few rocks, fine grained sand with little orange mottling, slightly damp. 4-7': Fine to medium grained sand with very little silt, loose, no organics, slightly damp. 7-7.5': Tan, fine to medium grained with little clay, damp.7.5-8': Orange, medium grained, damp.8-8.25': Tan, fine grained, damp. 8.25-12' SAND:Gray, fine grained with very little silt, damp. 12-15' SAND: Light tan, fine to medium grained, saturated. 15-16' SAND/SANDY CLAY: Orangish brown fine to coarse sand with very little clay, saturated, grades to fine to medium grained sandy clay, soft. 16-17' CLAY: Dark gray with decreasing sand. 17-17.5' CLAYEY SAND: Tan, fine to medium grained, damp. 17.5-22' CLAY:Dark gray, stiff, slightly damp.USCSSP SP SP SP SP SC CL SC CL GRAPHICSurf. Elev. Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 TOC Elev: : Well: PW-14 BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (136-146') WELL CONSTRUCTION Bentonite Grout : 0-131'Bentonite Seal : 131-134'Sand Filter Pack : 134-146' Date Started : 8/26/2019 Date Completed : 8/27/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Ken Stuart/Bret Nemeth Boring Log By : Ken Stuart/Bret Nemeth NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 146' Boring Depth : 157' Elevation/TOC : DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-14.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/26/2019 Date Completed : 8/27/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Ken Stuart/Bret Nemeth Boring Log By : Ken Stuart/Bret Nemeth LOG OF BORING: PW-14 (Page 2 of 8) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 146' Boring Depth : 157' Elevation/TOC : Depth in feet 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 DESCRIPTION 20-22' CLAY: Dark gray, stiff, slightly damp. 22-22.5': Little silt present. 22.5-27': Slightly stiff, slightly damp. 27-28': Fine sand and organic material, black throughout. 28-29.5': Dark gray, fine sandy clay with black organic material, wood and sand, orange and black. 29.5-35': Dark gray, stiff, slightly damp. 35-36.5': Micaceous, very fine sandy clay. 36.5-37.5': SAND: Light tan, loose, medium grained with very few orangish brown clay nodules. 37.5-38': SANDY CLAY: Dark gray, fine grained, slightly damp. 38-40' SAND: Gray, loose, fine to medium grained, micaceous, damp.USCSCL SP CL SP GRAPHICSurf. Elev. Depth in feet 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 TOC Elev: : Well: PW-14 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (136-146') WELL CONSTRUCTION Bentonite Grout : 0-131'Bentonite Seal : 131-134'Sand Filter Pack : 134-146' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-14.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/26/2019 Date Completed : 8/27/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Ken Stuart/Bret Nemeth Boring Log By : Ken Stuart/Bret Nemeth LOG OF BORING: PW-14 (Page 3 of 8) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 146' Boring Depth : 157' Elevation/TOC : Depth in feet 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 DESCRIPTION 40-41.5': Stiff clay with fine sand. 41.5-46.5' SILTY SAND:Light gray, fine grained, micaceous, loose. 46.5-52' CLAY:Dark gray, tight, slightly damp. 52-53.25' CLAYEY SAND:Dark gray, slightly damp. Fine to medium grained, damp. 53.25-56.5': Medium to coarse grained. 56.5-62' CLAY: Dark gray, stiff.USCSCL ML CL SC CL GRAPHICSurf. Elev. Depth in feet 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 TOC Elev: : Well: PW-14 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (136-146') WELL CONSTRUCTION Bentonite Grout : 0-131'Bentonite Seal : 131-134'Sand Filter Pack : 134-146' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-14.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/26/2019 Date Completed : 8/27/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Ken Stuart/Bret Nemeth Boring Log By : Ken Stuart/Bret Nemeth LOG OF BORING: PW-14 (Page 4 of 8) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 146' Boring Depth : 157' Elevation/TOC : Depth in feet 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 DESCRIPTION USCSGRAPHICSurf. Elev. Depth in feet 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 TOC Elev: : Well: PW-14 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (136-146') WELL CONSTRUCTION Bentonite Grout : 0-131'Bentonite Seal : 131-134'Sand Filter Pack : 134-146' 62-62.5': Fine to medium grained sandy clay with lignite at last 2" (chunks >1"), soft, damp. 62.5-69' SAND:Loose, fine to medium grained, very damp to wet. 69-71': Gray, fine to medium sand with many lignite chunks throughout and little clay lens, loose, damp. Dark gray silty clay with mica present at 71-71.5', stiff. 71.5-72.25': Medium to coarse grained, loose, micaceous. 72.25-77' SILTY CLAY:Dark gray, stiff. 77-89.5' CLAY: Dark gray, moderately plastic, very stiff, fissile, micaceous, moist. CL CL SC CL CH DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-14.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/26/2019 Date Completed : 8/27/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Ken Stuart/Bret Nemeth Boring Log By : Ken Stuart/Bret Nemeth LOG OF BORING: PW-14 (Page 5 of 8) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 146' Boring Depth : 157' Elevation/TOC : Depth in feet 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 DESCRIPTION 80-89.5' CLAY:Dark gray, moderately plastic, very stiff, fissile, micaceous, moist. 89.5-90': Becomes wet, medium stiff. 90-92': Becomes moist and stiff. 92-93': Becomes medium stiff, wet. 93-94.5' SAND: Gray, coarse grained, well sorted, dense, moist. 94.5-96.5' CLAY: Dark gray, highly plastic, stiff, fissile, micaceous, moist.Becoming very stiff at 96'.Becoming medium stiff and moderately plastic at 96.5'. 96.5-97' SAND: Dark gray, coarse grained, well sorted sand with clay, dense, moist. 97-97.5' CLAY: Dark gray, medium stiff, highly plasic, micaceous moist. 97.5-99' SAND: Light gray, medium stiff, coarse grained, dense, well sorted, moist. 99-101' CLAY:USCSCH SW CH SW CH SW CH GRAPHICSurf. Elev. Depth in feet 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 TOC Elev: : Well: PW-14 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (136-146') WELL CONSTRUCTION Bentonite Grout : 0-131'Bentonite Seal : 131-134'Sand Filter Pack : 134-146' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-14.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/26/2019 Date Completed : 8/27/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Ken Stuart/Bret Nemeth Boring Log By : Ken Stuart/Bret Nemeth LOG OF BORING: PW-14 (Page 6 of 8) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 146' Boring Depth : 157' Elevation/TOC : Depth in feet 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 DESCRIPTION Dark gray, medium stiff, highly plastic, fissile, micaceous, wet. 101-108' SAND: Gray, medium grained, dense, well sorted, micaceous, wet. Becoming lighter gray at 103.5'. Trace of silt at 107.5'. 108-108.5' CLAY: Dark gray, very stiff, highly plastic, micaceous, moist. 108.5-108.75' SANDY CLAY: Dark gray, soft, moderately plastic, wet. 108.75-110' CLAY: Dark gray, very stiff, highly plastic, fissile, micaceous, moist. 110-111' CLAYEY SAND: Dark gray, dense, medium grained, well sorted, micaceous, wet. 111-121.5' CLAY: Dark gray, very stiff, highly plastic, fissile, micaceous, moist. Becomes stiff at 117'.USCSCH SW CHCL CH SC CH GRAPHICSurf. Elev. Depth in feet 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 TOC Elev: : Well: PW-14 BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (136-146') WELL CONSTRUCTION Bentonite Grout : 0-131'Bentonite Seal : 131-134'Sand Filter Pack : 134-146' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-14.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/26/2019 Date Completed : 8/27/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Ken Stuart/Bret Nemeth Boring Log By : Ken Stuart/Bret Nemeth LOG OF BORING: PW-14 (Page 7 of 8) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 146' Boring Depth : 157' Elevation/TOC : Depth in feet 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 DESCRIPTION Dark gray clay, very stiff to stiff, highly plastic, fissile, micaceous, moist. 121.5-132' SAND: Light gray, medium dense, medium grained, well sorted, micaceous, moist. 132-136.5' SILTY SAND:Dark gray, medium dense, medium grained, well sorted, micaceous, moist. 136.5-139.75' CLAY:Dark gray, stiff, highly plastic, fissile, micaceous, moist. 139.75-143' SILTY SAND:USCSCH SW SM CH SM GRAPHICSurf. Elev. Depth in feet 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 TOC Elev: : Well: PW-14 BentoniteGrout BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (136-146') WELL CONSTRUCTION Bentonite Grout : 0-131'Bentonite Seal : 131-134'Sand Filter Pack : 134-146' DRAFT - Pending 09-11-2019 F:\Logs\Fayetteville\PW-14.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/26/2019 Date Completed : 8/27/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : James Smith Lead Driller License # : 4472-A Geologist : Ken Stuart/Bret Nemeth Boring Log By : Ken Stuart/Bret Nemeth LOG OF BORING: PW-14 (Page 8 of 8) NAD83 1983 : NC SP Coordinates Northing : Easting : Completed Depth: : 146' Boring Depth : 157' Elevation/TOC : Depth in feet 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 DESCRIPTION 139.75-143' SILTY SAND: Gray, medium dense, coarse grained, well sorted, becomes medium grained and micaceous at 140.5', wet. 143-146' CLAYEY SAND: Light gray, medium dense, medium to fine grained, well sorted, wet. 146-150' SILTY CLAY: Light gray, very stiff, moderately plastic with fine grained sand, moist. 150-157': Stiff, slightly plastic with fine sand, moist to wet. End of boring at 157' bgs.USCSSM SC CL GRAPHICSurf. Elev. Depth in feet 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 TOC Elev: : Well: PW-14 SandFiler Pack Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (136-146') WELL CONSTRUCTION Bentonite Grout : 0-131'Bentonite Seal : 131-134'Sand Filter Pack : 134-146' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-15R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/13/2019 Date Completed : 8/14/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-15R (Page 1 of 6) NAD83 1983 : NC SP Coordinates Northing : 398900.875 Easting : 2051011.753 Completed Depth: : 120' Boring Depth : 139' Elevation/TOC : 133.33 / 136.14 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 DESCRIPTION 0-4' SILTY SAND: Tan, fine grained, very loose, dry. 4-5' CLAYEY SAND: Fine grained, damp. 5-6': Orange yellow gray, medium grained, damp. 6-7' CLAY: Gray, medium stiff, damp. 7-9':Dark gray, stiff, trace of mica, damp. 9-19':Dark gray clay with spots of orange brown at 9-11'. Stiff, crumbles from 11-12'. Dark gray clay interbedded sand layer, medium coarse, trace of organics, wet at 14'. 19-25':Dark gray, medium stiff, organic rich at 19-21'. Light gray, interbedded fine sands at 22-23' (>1mm), damp.USCSSM SC SC CL CL CL CL GRAPHICSurf. Elev. 133.33 133.33 132.33 131.33 130.33 129.33 128.33 127.33 126.33 125.33 124.33 123.33 122.33 121.33 120.33 119.33 118.33 117.33 116.33 115.33 114.33 113.33 112.33 111.33 110.33 109.33 Depth in feet 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 TOC Elev: 136.14 Well: PW-15R BentoniteGrout PVCCasing ExpandablePlug Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (110-120') WELL CONSTRUCTION Bentonite Grout : 0-106'Bentonite Seal : 106-108'Sand Filter Pack : 108-120' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-15R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/13/2019 Date Completed : 8/14/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-15R (Page 2 of 6) NAD83 1983 : NC SP Coordinates Northing : 398900.875 Easting : 2051011.753 Completed Depth: : 120' Boring Depth : 139' Elevation/TOC : 133.33 / 136.14 Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 DESCRIPTION 25-29':Light gray, damp. 29-31' CLAYEY SAND:Dark gray, medium grained, wet. 31-32' SAND:Gray to greenish gray, medium to coarse grained, loose. 32-33': Light brown, moist. 33-36':White to tan fine grained sand, very loose. 1" clay lens at 36', dry. 36-39' SILTY SAND:Yellowish orange, light brown to brown and red brown color, fine grained, loose, clay at 36', damp at 39'. 39-41' SAND:Medium to coarse grained, clay lens throughout (>1"), wet. 41-45' CLAY:Dark gray, medium stiff, interbedded with fine sand (>1mm). 45-49' CLAYEY SAND:Brown, clay lens throughout, ranging from >1mm to 1". 49-51.5' SILTY SAND: Brown, tan, orange-yellowish, mica rich, moist, medium to fine grained at bottom.USCSCL SC SP SP SP SM SP CL SC SM GRAPHICSurf. Elev. 133.33 108.33 107.33 106.33 105.33 104.33 103.33 102.33 101.33 100.33 99.33 98.33 97.33 96.33 95.33 94.33 93.33 92.33 91.33 90.33 89.33 88.33 87.33 86.33 85.33 84.33 Depth in feet 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 TOC Elev: 136.14 Well: PW-15R BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (110-120') WELL CONSTRUCTION Bentonite Grout : 0-106'Bentonite Seal : 106-108'Sand Filter Pack : 108-120' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-15R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/13/2019 Date Completed : 8/14/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-15R (Page 3 of 6) NAD83 1983 : NC SP Coordinates Northing : 398900.875 Easting : 2051011.753 Completed Depth: : 120' Boring Depth : 139' Elevation/TOC : 133.33 / 136.14 Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 DESCRIPTION 51.5-52': Tan, light brown, very fine grained.52-52.5': Gray color. 52.5-62' CLAY:Dark gray, stiff, interbedded very fine light gray sand, damp. 62-69' CLAYEY SAND:Dark gray, fine to medium grained, mica rich. Loose sand layers, medium grained at 65' and 67', both layers are 1' thick, moist. 69-75' SILTY SAND:Dark gray, medium grained, moist.2" organic layer at 70'.5" clay lens at 71'.Very fine sand at 72'. 3" clay lens at 73'. 7" clay lens at 75'.USCSSM SM CL SC SM GRAPHICSurf. Elev. 133.33 83.33 82.33 81.33 80.33 79.33 78.33 77.33 76.33 75.33 74.33 73.33 72.33 71.33 70.33 69.33 68.33 67.33 66.33 65.33 64.33 63.33 62.33 61.33 60.33 59.33 Depth in feet 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 TOC Elev: 136.14 Well: PW-15R BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (110-120') WELL CONSTRUCTION Bentonite Grout : 0-106'Bentonite Seal : 106-108'Sand Filter Pack : 108-120' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-15R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/13/2019 Date Completed : 8/14/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-15R (Page 4 of 6) NAD83 1983 : NC SP Coordinates Northing : 398900.875 Easting : 2051011.753 Completed Depth: : 120' Boring Depth : 139' Elevation/TOC : 133.33 / 136.14 Depth in feet 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 DESCRIPTION 75-79' SILTY SAND:Organic rich layer at 78.5'. 79-88' CLAY:Dark gray, stiff, mica present, interbedded fine sand layers >1mm throughout, damp. 88-97' SILTY SAND:Dark gray to light gray, medium grained, trace of micas, poorly sorted, moist. 97-99': Fine grained. 99-103': Light gray to gray, medium grained, mica present.USCSSM CL SM SM GRAPHICSurf. Elev. 133.33 58.33 57.33 56.33 55.33 54.33 53.33 52.33 51.33 50.33 49.33 48.33 47.33 46.33 45.33 44.33 43.33 42.33 41.33 40.33 39.33 38.33 37.33 36.33 35.33 34.33 Depth in feet 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 TOC Elev: 136.14 Well: PW-15R BentoniteGrout Riser Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (110-120') WELL CONSTRUCTION Bentonite Grout : 0-106'Bentonite Seal : 106-108'Sand Filter Pack : 108-120' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-15R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/13/2019 Date Completed : 8/14/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-15R (Page 5 of 6) NAD83 1983 : NC SP Coordinates Northing : 398900.875 Easting : 2051011.753 Completed Depth: : 120' Boring Depth : 139' Elevation/TOC : 133.33 / 136.14 Depth in feet 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 DESCRIPTION 103-109' SILTY SAND:Trace of clay at 103'. 109-119':Gray to light gray, medium grained, mica present, moist, 2" clay lens at 118'. Clay lens at 118'. 119-120': Fine grained. 120-121' CLAY: Dark gray, stiff. 121-123' SILTY SAND:Dark gray to gray, fine grained, mica present, moist, approximately 1" clay lens at 122.5'. 123-125': Medium grained, moist.USCSSM SM SM CL MS GRAPHICSurf. Elev. 133.33 33.33 32.33 31.33 30.33 29.33 28.33 27.33 26.33 25.33 24.33 23.33 22.33 21.33 20.33 19.33 18.33 17.33 16.33 15.33 14.33 13.33 12.33 11.33 10.33 9.33 Depth in feet 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 TOC Elev: 136.14 Well: PW-15R BentoniteGrout BentoniteSeal SandFiler Pack Riser Screen Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (110-120') WELL CONSTRUCTION Bentonite Grout : 0-106'Bentonite Seal : 106-108'Sand Filter Pack : 108-120' DRAFT - Pending 09-24-2019 F:\Logs\Fayetteville\PW-15R.borPARSONS INFRASTRUCTURE4704 Hedgemore Drive Charlotte, North Carolina 28209 P16 - P18 Delineation Well Drilling ProjectFayetteville The Chemours Company FC, LLC Project Number: 449338 Date Started : 8/13/2019 Date Completed : 8/14/2019 Drilling Method : Sonic Sampling Method : Continuous Core Drilling Firm : Cascade Lead Driller : Vern Olsen Lead Driller License # : 2774-A Geologist : Brandon Weidner Boring Log By : Brandon Weidner LOG OF BORING: PW-15R (Page 6 of 6) NAD83 1983 : NC SP Coordinates Northing : 398900.875 Easting : 2051011.753 Completed Depth: : 120' Boring Depth : 139' Elevation/TOC : 133.33 / 136.14 Depth in feet 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 DESCRIPTION 125-126' CLAY:Stiff, damp. 126-128' SILTY SAN D:Dark gray to gray, medium grained, moist, clay lens at 127'. 128-129' CLAY: Stiff, damp, interbedded light gray, fine grained sand >1mm. 129-132' SILTY SAND:Very light gray, medium grained, poorly sorted, wet. Finer grained at 132'. 132-136' SILTY CLAY:Light gray, trace of very fine sand, stiff, damp. 136-139': Light gray, stiff, damp. End of boring at 139'.USCSCL SM CL SM CL GRAPHICSurf. Elev. 133.33 8.33 7.33 6.33 5.33 4.33 3.33 2.33 1.33 .33 -.67 -1.67 -2.67 -3.67 -4.67 -5.67 -6.67 -7.67 -8.67 -9.67 -10.67 -11.67 -12.67 -13.67 -14.67 -15.67 Depth in feet 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 TOC Elev: 136.14 Well: PW-15R Well ConstructionInformation WELL RISER Material : PVCDiameter : 2" WELL SCREEN Material : Schedule 40 PVCDiameter : 2"Slot Size : 0.010"Length : 10' (110-120') WELL CONSTRUCTION Bentonite Grout : 0-106'Bentonite Seal : 106-108'Sand Filter Pack : 108-120' DRAFT - Pending TR0795 APPENDIX E Slug Test Data TABLE E-1 ESTIMATED HYDRAULIC CONDUCTIVITYChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Test 1Test 2 3Test 3 3Test 4 3Test 5 3Test 1 Test 2Test 3 3Test 4 3Test 5 3Test 6 3Test 1 2Test 2 2Test 3 2Test 4 2Manual Manual Manual Manual Manual Manual Manual Manual Manual Manual Manual Manual Manual Manual ManualSlug Out Slug Out Slug Out Slug Out Slug Out Slug In Slug Out Slug In Slug Out Slug In Slug Out Slug In Slug In Slug Out Slug In2.08 2.24 2.10 2.13 2.14 -3.06 2.03 -2.82 2.62 -3.00 2.53 -3.13 -3.10 2.28 -2.56Bouwer-Rice (1976) K (cm/sec)6.10E-04 1.44E-04 1.81E-04 1.12E-04 2.03E-04 1.30E-03 1.66E-03 1.26E-04 1.40E-04 1.23E-041.28E-041.43E-05 8.39E-05 3.70E-05 1.05E-04Hvorslev (1951) K (cm/sec)8.99E-04 1.94E-04 2.41E-04 1.79E-04 2.68E-04 2.91E-03 3.34E-03 3.02E-04 3.12E-04 2.00E-042.76E-042.04E-05 1.17E-04 4.62E-05 1.49E-04Geometric Mean K (cm/sec)Geometric Mean K (feet/day)0.55.43E-0513LTW-01 LTW-03 LTW-0430Well InformationWell Diameter (in)22Initial Boring Diameter (in)66Screen interval (ft BTOC)Confined or Unconfined AquiferUnconfined UnconfinedAquifer UnitFloodplain Deposits Floodplain Deposits11-26 15-30Well Depth (ft BTOC)2651.22 50.3352.910.1 0.1TOC Elevation (ft NAVD 88)53.83Static Water Level (ft BTOC)16.24 12.85Static Water Level (ft BLS)13.63 10.27AQTESOLV InputInitial Displacement (ft) [AQTESOLV H(0)]Static Water Column Height (ft) [AQTESOLV H]9.76 17.15Formation Saturated Thickness (ft) [AQTESOLV b]15 15162.15Screen Length (ft) [AQTESOLV "L"]Vertical-to-Horizontal hydraulic conductivity anisotropy ratio [AQTESOLV Kv/Kh]Well Skin Radius (ft) [AQTESOLV r(sk)]0.5 0.5Inside Radius of Well Casing (ft) [AQTESOLV r(c)]0.17 0.17Radius of Well (ft) [AQTESOLV r(w)]0.5 0.5Ground Surface ElevationWater level above top of well screen [AQTESOLV d]-5.242612-270.170.518.29410.13.2915UnconfinedFloodplain Deposits49.34278.7151.866.19Slug Test Results0.691.190.152.43E-044.20E-04TR0795Page 1 of 5September 2019 TABLE E-1 ESTIMATED HYDRAULIC CONDUCTIVITYChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Bouwer-Rice (1976) K (cm/sec)Hvorslev (1951) K (cm/sec)Geometric Mean K (cm/sec)Geometric Mean K (feet/day)Well InformationWell Diameter (in)Initial Boring Diameter (in)Screen interval (ft BTOC)Confined or Unconfined AquiferAquifer UnitWell Depth (ft BTOC)TOC Elevation (ft NAVD 88)Static Water Level (ft BTOC)Static Water Level (ft BLS)AQTESOLV InputInitial Displacement (ft) [AQTESOLV H(0)]Static Water Column Height (ft) [AQTESOLV H]Formation Saturated Thickness (ft) [AQTESOLV b]Screen Length (ft) [AQTESOLV "L"]Vertical-to-Horizontal hydraulic conductivity anisotropy ratio [AQTESOLV Kv/Kh]Well Skin Radius (ft) [AQTESOLV r(sk)]Inside Radius of Well Casing (ft) [AQTESOLV r(c)]Radius of Well (ft) [AQTESOLV r(w)]Ground Surface ElevationWater level above top of well screen [AQTESOLV d]Slug Test ResultsTest 12Test 2 Test 3 Test 4 Test 5 Test 6 Test 7 Test 8 Test 9 Test 1 Test 2 Test 3 Test 4 Test 5Manual Manual Manual Manual Manual Manual Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic PneumaticSlug In Slug Out Slug In Slug Out Slug In Slug Out psi psi psi psi psi psi psi psi-2.41 1.91 -2.89 1.91 -2.56 1.91 2.67 3.55 3.44 3.99 3.57 3.89 3.34 4.432.15E-02 1.72E-02 2.67E-03 4.05E-03 3.84E-03 4.14E-03 1.72E-02 1.60E-02 1.49E-02 9.45E-03 1.09E-02 1.05E-02 1.04E-021.12E-022.88E-02 2.40E-02 3.56E-03 5.55E-03 5.19E-03 5.64E-03 2.25E-02 2.17E-02 2.03E-02 1.30E-02 1.37E-02 1.32E-02 1.32E-021.30E-0227.69150.117.69100.174.01100.170.50.50.50.5628-3838ConfinedBlack Creek Aquifer50.03ConfinedBlack Creek Aquifer116.33LTW-022688-9898SMW-1283.9986.6010.317.86113.72214.012052.480.128.3833.321.00E-021.18E-02TR0795Page 2 of 5September 2019 TABLE E-1 ESTIMATED HYDRAULIC CONDUCTIVITYChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Bouwer-Rice (1976) K (cm/sec)Hvorslev (1951) K (cm/sec)Geometric Mean K (cm/sec)Geometric Mean K (feet/day)Well InformationWell Diameter (in)Initial Boring Diameter (in)Screen interval (ft BTOC)Confined or Unconfined AquiferAquifer UnitWell Depth (ft BTOC)TOC Elevation (ft NAVD 88)Static Water Level (ft BTOC)Static Water Level (ft BLS)AQTESOLV InputInitial Displacement (ft) [AQTESOLV H(0)]Static Water Column Height (ft) [AQTESOLV H]Formation Saturated Thickness (ft) [AQTESOLV b]Screen Length (ft) [AQTESOLV "L"]Vertical-to-Horizontal hydraulic conductivity anisotropy ratio [AQTESOLV Kv/Kh]Well Skin Radius (ft) [AQTESOLV r(sk)]Inside Radius of Well Casing (ft) [AQTESOLV r(c)]Radius of Well (ft) [AQTESOLV r(w)]Ground Surface ElevationWater level above top of well screen [AQTESOLV d]Slug Test ResultsTest 1 Test 2 Test 3 Test 4 Test 5 Test 6 Test 7 Test 8 Test 1 Test 2 Test 3 Test 4 Test 5Manual Manual Manual Manual Manual Manual Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic PneumaticSlug In Slug Out Slug In Slug Out Slug In Slug Out psi psi psi psi psi psi psi-1.99 1.99 -2.22 1.82 -2.45 2.01 4.29 3.72 6.72 3.97 3.84 3.90 4.991.78E-03 1.89E-03 2.67E-03 1.78E-032.40E-03 1.38E-03 1.57E-03 1.46E-034.60E-03 3.39E-03 7.97E-03 1.94E-03 3.57E-032.25E-03 2.32E-03 3.26E-03 1.99E-032.99E-03 1.71E-03 2.01E-03 1.81E-035.23E-03 3.62E-03 9.45E-03 2.11E-03 3.85E-032629-4444ConfinedFloodplain Deposits / Black Creek Aquifer49.2952.016.909.620.519.38150.170.5LTW-0534.38380.1BCA-0126101-91101ConfinedBlack Creek Aquifer143.26146.3057.9654.9343.04310.133.04100.170.511.540.54.07E-035.732.02E-03TR0795Page 3 of 5September 2019 TABLE E-1 ESTIMATED HYDRAULIC CONDUCTIVITYChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Bouwer-Rice (1976) K (cm/sec)Hvorslev (1951) K (cm/sec)Geometric Mean K (cm/sec)Geometric Mean K (feet/day)Well InformationWell Diameter (in)Initial Boring Diameter (in)Screen interval (ft BTOC)Confined or Unconfined AquiferAquifer UnitWell Depth (ft BTOC)TOC Elevation (ft NAVD 88)Static Water Level (ft BTOC)Static Water Level (ft BLS)AQTESOLV InputInitial Displacement (ft) [AQTESOLV H(0)]Static Water Column Height (ft) [AQTESOLV H]Formation Saturated Thickness (ft) [AQTESOLV b]Screen Length (ft) [AQTESOLV "L"]Vertical-to-Horizontal hydraulic conductivity anisotropy ratio [AQTESOLV Kv/Kh]Well Skin Radius (ft) [AQTESOLV r(sk)]Inside Radius of Well Casing (ft) [AQTESOLV r(c)]Radius of Well (ft) [AQTESOLV r(w)]Ground Surface ElevationWater level above top of well screen [AQTESOLV d]Slug Test ResultsTest 1 Test 2 Test 3 Test 4 Test 5 Test 1 Test 2 Test 3 Test 4 Test 5Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic Pneumatic Pneumaticpsi psi psi psi psi psi psi psi psi psi4.52 4.31 6.80 4.99 5.10 3.93 3.72 3.52 3.49 3.867.97E-03 6.93E-03 5.80E-03 5.80E-03 5.47E-03 2.48E-02 2.69E-02 2.66E-02 2.67E-022.60E-029.77E-03 8.64E-03 7.11E-03 7.11E-03 6.71E-03 3.06E-02 2.96E-02 2.92E-02 2.93E-022.86E-02BCA-02BCA-042266102-92104-94102104ConfinedConfinedBlack Creek Aquifer Black Creek Aquifer145.20 147.069148.42 150.24173.40 27.5270.18 24.3528.60 76.4833 340.1 0.118.60 66.4810 100.17 0.170.5 0.519.90 78.740.5 0.57.02E-03 2.78E-02TR0795Page 4 of 5September 2019 TABLE E-1 ESTIMATED HYDRAULIC CONDUCTIVITYChemours Fayetteville Works, North CarolinaGeosyntec Consultants of NC P.C.Notes:1. Pneumatic slug tests were performed only at locations where well screen was fully saturated. Manual slug tests were performed at all other well locations.2. Initial displacement suspected to display oscillatory response likely due to inertial effects.3. Initial displacement response curve suspected to display double-straight line effect due to drainage from filter pack. Analytical solutions are fit to the second-straight line displacement curve representing post-filter drainage, aquifer response.4. Displacement time curves and AQTESOLV outputs used to summarize results here are included in this Appendix.5. Abbreviations:cm/sec - centimeter per secondft BLS - feet below land surfaceNAVD 88 - North American Vertical Datum 1988ft BTOC - feet below top of casingin - inchesft - feetft/day - feet per dayK - hydraulic conductivityTR0795Page 5 of 5September 2019 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T1_br.aqtDate: 08/15/19 Time: 10:40:05 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T1) Initial Displacement: 6.722 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.0046 cm/sec y0 = 3.532 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T1_h.aqtDate: 08/15/19 Time: 10:38:05 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T1) Initial Displacement: 6.722 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.005228 cm/sec y0 = 3.275 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T2_br.aqtDate: 08/15/19 Time: 10:45:01 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T2) Initial Displacement: 3.967 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.003392 cm/sec y0 = 1.561 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T2_h.aqtDate: 08/15/19 Time: 10:44:03 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T2) Initial Displacement: 3.967 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.003621 cm/sec y0 = 1.359 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T3_br.aqtDate: 08/15/19 Time: 10:54:34 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T3) Initial Displacement: 3.84 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.007972 cm/sec y0 = 3.63 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T3_h.aqtDate: 08/15/19 Time: 10:50:10 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T3) Initial Displacement: 3.84 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.009452 cm/sec y0 = 3.547 ft 0. 80. 160. 240. 320. 400. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T4_br.aqtDate: 08/15/19 Time: 11:13:38 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T4) Initial Displacement: 3.899 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.001941 cm/sec y0 = 0.7547 ft 0. 80. 160. 240. 320. 400. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T4_h.aqtDate: 08/15/19 Time: 11:12:33 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T4) Initial Displacement: 3.899 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.002112 cm/sec y0 = 0.7329 ft 0. 80. 160. 240. 320. 400. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T5_br.aqtDate: 08/15/19 Time: 11:25:53 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T5) Initial Displacement: 4.989 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.003568 cm/sec y0 = 1.893 ft 0. 80. 160. 240. 320. 400. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-01\BCA-01-T5_h.aqtDate: 08/15/19 Time: 11:17:48 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-01 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 31. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-01-T5) Initial Displacement: 4.989 ft Static Water Column Height: 43.04 ftTotal Well Penetration Depth: 43.04 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.003847 cm/sec y0 = 1.724 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T1_br.aqtDate: 08/15/19 Time: 11:23:09 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T1) Initial Displacement: 4.519 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.007974 cm/sec y0 = 4.522 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T1_h.aqtDate: 08/15/19 Time: 11:23:41 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T1) Initial Displacement: 4.519 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.009772 cm/sec y0 = 4.52 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T2_br.aqtDate: 08/15/19 Time: 11:32:06 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T2) Initial Displacement: 4.309 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.006933 cm/sec y0 = 4.115 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T2_h.aqtDate: 08/15/19 Time: 11:28:23 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T2) Initial Displacement: 4.309 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.008641 cm/sec y0 = 4.234 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T3_br.aqtDate: 08/15/19 Time: 11:30:35 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T3) Initial Displacement: 6.8 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.005797 cm/sec y0 = 6.741 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T3_h.aqtDate: 08/15/19 Time: 11:31:50 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T3) Initial Displacement: 6.8 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.007108 cm/sec y0 = 6.741 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T4_br.aqtDate: 08/15/19 Time: 11:35:36 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T4) Initial Displacement: 4.991 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.005799 cm/sec y0 = 4.926 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T4_h.aqtDate: 08/15/19 Time: 11:35:14 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T4) Initial Displacement: 4.991 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.007111 cm/sec y0 = 4.926 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T5_br.aqtDate: 08/15/19 Time: 11:39:21 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T5) Initial Displacement: 5.101 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.005472 cm/sec y0 = 5.132 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-02\BCA-02-T5_h.aqtDate: 08/15/19 Time: 11:40:04 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-02 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 33. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-02-T5) Initial Displacement: 5.101 ft Static Water Column Height: 28.6 ftTotal Well Penetration Depth: 28.6 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.006709 cm/sec y0 = 5.132 ft 0. 30. 60. 90. 120. 150. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T1_br.aqtDate: 08/15/19 Time: 11:47:45 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T1) Initial Displacement: 3.929 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.02481 cm/sec y0 = 3.756 ft 0. 30. 60. 90. 120. 150. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T1_br.aqtDate: 08/15/19 Time: 11:48:15 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T1) Initial Displacement: 3.929 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.03059 cm/sec y0 = 3.992 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T2_br.aqtDate: 08/15/19 Time: 11:59:00 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T2) Initial Displacement: 3.724 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.02691 cm/sec y0 = 3.77 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T2_h.aqtDate: 08/15/19 Time: 11:58:24 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T2) Initial Displacement: 3.724 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02957 cm/sec y0 = 3.769 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T3_br.aqtDate: 08/15/19 Time: 12:01:03 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T3) Initial Displacement: 3.524 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.02661 cm/sec y0 = 3.511 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T3_h.aqtDate: 08/15/19 Time: 12:01:58 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T3) Initial Displacement: 3.524 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02924 cm/sec y0 = 3.511 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T4_br.aqtDate: 08/15/19 Time: 12:03:50 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T4) Initial Displacement: 3.488 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.02671 cm/sec y0 = 3.49 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T4_h.aqtDate: 08/15/19 Time: 12:04:30 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T4) Initial Displacement: 3.488 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02934 cm/sec y0 = 3.49 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\BCA-04-T5_BR_con.aqtDate: 08/15/19 Time: 12:06:17 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T5) Initial Displacement: 3.864 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.026 cm/sec y0 = 3.958 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\BCA-04\BCA-04-T5_h.aqtDate: 08/15/19 Time: 12:07:13 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: BCA-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 34. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (BCA-04-T5) Initial Displacement: 3.864 ft Static Water Column Height: 76.48 ftTotal Well Penetration Depth: 76.48 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02857 cm/sec y0 = 3.959 ft 0. 140. 280. 420. 560. 700. 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T1_br.aqtDate: 08/14/19 Time: 13:14:54 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T1) Initial Displacement: 2.082 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.0006097 cm/sec y0 = 0.4163 ft 0. 140. 280. 420. 560. 700. 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T1_h.aqtDate: 08/14/19 Time: 13:15:42 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T1) Initial Displacement: 2.082 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0008987 cm/sec y0 = 0.4312 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T2_br.aqtDate: 08/14/19 Time: 13:17:05 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T2) Initial Displacement: 2.238 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.0001438 cm/sec y0 = 0.302 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T2_h.aqtDate: 08/14/19 Time: 13:18:06 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T2) Initial Displacement: 2.238 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0001935 cm/sec y0 = 0.2922 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T3_br.aqtDate: 08/14/19 Time: 13:19:28 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T3) Initial Displacement: 2.099 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.0001814 cm/sec y0 = 0.3695 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T3_h.aqtDate: 08/14/19 Time: 13:20:21 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T3) Initial Displacement: 2.099 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0002405 cm/sec y0 = 0.3523 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T4_br.aqtDate: 08/14/19 Time: 13:23:01 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T4) Initial Displacement: 2.131 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0001787 cm/sec y0 = 0.3372 ft 0. 300. 600. 900. 1.2E+3 1.5E+3 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T5_br.aqtDate: 08/14/19 Time: 13:31:12 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T5) Initial Displacement: 2.136 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.0002025 cm/sec y0 = 0.4146 ft 0. 300. 600. 900. 1.2E+3 1.5E+3 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-01\LTW-01-T5_h.aqtDate: 08/14/19 Time: 13:32:08 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-01 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 16. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-01-T5) Initial Displacement: 2.136 ft Static Water Column Height: 9.76 ftTotal Well Penetration Depth: 15. ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0002677 cm/sec y0 = 0.412 ft 0. 40. 80. 120. 160. 200. 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T1_br.aqtDate: 08/14/19 Time: 13:59:07 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T1) Initial Displacement: 3.989 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.009449 cm/sec y0 = 3.104 ft 0. 40. 80. 120. 160. 200. 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T1_h.aqtDate: 08/14/19 Time: 14:00:50 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T1) Initial Displacement: 3.989 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.01296 cm/sec y0 = 3.292 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T2_br.aqtDate: 08/14/19 Time: 14:10:14 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T2) Initial Displacement: 3.57 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.01088 cm/sec y0 = 3.022 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T2_h.aqtDate: 08/14/19 Time: 14:09:14 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T2) Initial Displacement: 3.57 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.01366 cm/sec y0 = 2.92 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T3_br.aqtDate: 08/14/19 Time: 14:16:20 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T3) Initial Displacement: 3.891 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.0105 cm/sec y0 = 3.24 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T3_h.aqtDate: 08/14/19 Time: 14:16:55 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T3) Initial Displacement: 3.891 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.01319 cm/sec y0 = 3.255 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T4_br.aqtDate: 08/14/19 Time: 14:23:21 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T4) Initial Displacement: 3.34 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.01039 cm/sec y0 = 3.255 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T4_h.aqtDate: 08/14/19 Time: 14:24:08 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T4) Initial Displacement: 3.34 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.01322 cm/sec y0 = 3.239 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T5_br.aqtDate: 08/14/19 Time: 14:28:11 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T5) Initial Displacement: 4.43 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.0112 cm/sec y0 = 3.853 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-02\LTW-02-T5_h.aqtDate: 08/14/19 Time: 14:28:43 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-02 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 15. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-02-T5) Initial Displacement: 4.43 ft Static Water Column Height: 27.69 ftTotal Well Penetration Depth: 27.69 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.01299 cm/sec y0 = 3.609 ft 0. 60. 120. 180. 240. 300. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T1_br.aqtDate: 08/14/19 Time: 14:38:58 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T1) Initial Displacement: -3.061 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.001303 cm/sec y0 = -1.604 ft 0. 60. 120. 180. 240. 300. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T1_h.aqtDate: 08/14/19 Time: 14:38:19 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T1) Initial Displacement: -3.061 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.002914 cm/sec y0 = -1.63 ft 0. 60. 120. 180. 240. 300. 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T2_br.aqtDate: 08/15/19 Time: 09:00:23 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T2) Initial Displacement: 2.026 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.001657 cm/sec y0 = 1.824 ft 0. 60. 120. 180. 240. 300. 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T2_h.aqtDate: 08/15/19 Time: 09:01:28 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T2) Initial Displacement: 2.026 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.003344 cm/sec y0 = 1.808 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-03-T3_BR_unc (4).aqtDate: 09/18/19 Time: 12:00:34 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T4) Initial Displacement: -2.825 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 4.128E-6 ft/sec y0 = -0.2622 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-03-T3_H_unc.aqtDate: 09/18/19 Time: 12:00:00 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T4) Initial Displacement: -2.825 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 9.924E-6 ft/sec y0 = -0.3112 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T4_br.aqtDate: 08/14/19 Time: 15:10:45 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T4) Initial Displacement: 2.624 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.0001401 cm/sec y0 = 0.3456 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T4_h.aqtDate: 08/14/19 Time: 15:16:18 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T4) Initial Displacement: 2.624 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0003117 cm/sec y0 = 0.3735 ft 0. 800. 1.6E+3 2.4E+3 3.2E+3 4.0E+3 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T5_br.aqtDate: 08/14/19 Time: 15:21:11 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T5) Initial Displacement: -3.003 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.0001225 cm/sec y0 = -0.3784 ft 0. 800. 1.6E+3 2.4E+3 3.2E+3 4.0E+3 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T5_h.aqtDate: 08/14/19 Time: 15:22:05 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T5) Initial Displacement: -3.003 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0001996 cm/sec y0 = -0.3345 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T6_br.aqtDate: 08/14/19 Time: 15:26:22 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T6) Initial Displacement: 2.532 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.0001277 cm/sec y0 = 0.3572 ft 0. 600. 1.2E+3 1.8E+3 2.4E+3 3.0E+3 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-03\LTW-03-T6_h.aqtDate: 08/14/19 Time: 15:29:39 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-03 Test Date: 07/18/2019 AQUIFER DATA Saturated Thickness: 13. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-03-T6) Initial Displacement: 2.532 ft Static Water Column Height: 17.15 ftTotal Well Penetration Depth: 17.15 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0002756 cm/sec y0 = 0.3743 ft 0. 1.8E+3 3.6E+3 5.4E+3 7.2E+3 9.0E+3 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-04\LTW-04-T2_h.aqtDate: 08/14/19 Time: 15:47:07 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04T2) Initial Displacement: -3.104 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0001168 cm/sec y0 = -0.9781 ft 0. 4.0E+3 8.0E+3 1.2E+4 1.6E+4 2.0E+4 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-04\LTW-04-T1_br.aqtDate: 08/15/19 Time: 12:27:18 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/15/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04) Initial Displacement: -3.126 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 1.387E-5 cm/sec y0 = -0.7751 ft 0. 4.0E+3 8.0E+3 1.2E+4 1.6E+4 2.0E+4 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-04\LTW-04-T1_h.aqtDate: 08/14/19 Time: 15:40:20 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/15/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04) Initial Displacement: -3.126 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 2.038E-5 cm/sec y0 = -0.8037 ft 0. 1.8E+3 3.6E+3 5.4E+3 7.2E+3 9.0E+3 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-04-T2_BR_unc (1).aqtDate: 08/14/19 Time: 15:44:24 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04T2) Initial Displacement: -3.104 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 8.393E-5 cm/sec y0 = -1.046 ft 0. 1.8E+3 3.6E+3 5.4E+3 7.2E+3 9.0E+3 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-04\LTW-04-T2_h.aqtDate: 08/14/19 Time: 15:56:04 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04T2) Initial Displacement: -3.104 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0001168 cm/sec y0 = -0.9781 ft 0. 1000. 2.0E+3 3.0E+3 4.0E+3 5.0E+3 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-04\LTW-04-T3_br.aqtDate: 08/14/19 Time: 16:03:44 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04T3) Initial Displacement: 2.276 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 3.7E-5 cm/sec y0 = 0.9612 ft 0. 1000. 2.0E+3 3.0E+3 4.0E+3 5.0E+3 0.1 1. 10. Time (sec)Displacement (ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-04\LTW-04-T3_br.aqtDate: 08/14/19 Time: 16:02:13 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04T3) Initial Displacement: 2.276 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 4.618E-5 cm/sec y0 = 0.8823 ft 0. 1000. 2.0E+3 3.0E+3 4.0E+3 5.0E+3 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-04\LTW-04-T4_br.aqtDate: 08/14/19 Time: 16:06:55 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04-T4) Initial Displacement: -2.559 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Bouwer-Rice K = 0.0001048 cm/sec y0 = -1.664 ft 0. 1000. 2.0E+3 3.0E+3 4.0E+3 5.0E+3 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\LTW-04\LTW-04-T4_h.aqtDate: 08/14/19 Time: 16:07:42 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-04 Test Date: 07/17/2019 AQUIFER DATA Saturated Thickness: 41. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-04-T4) Initial Displacement: -2.559 ft Static Water Column Height: 18.29 ftTotal Well Penetration Depth: 18.29 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Unconfined Solution Method: Hvorslev K = 0.0001486 cm/sec y0 = -1.676 ft 0. 25. 50. 75. 100. 125. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T1_br.aqtDate: 09/18/19 Time: 11:11:45 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T1) Initial Displacement: -1.992 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.001779 cm/sec y0 = -0.8232 ft 0. 25. 50. 75. 100. 125. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T1_h.aqtDate: 09/18/19 Time: 11:24:28 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T1) Initial Displacement: -1.992 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.00225 cm/sec y0 = -0.8289 ft 0. 100. 200. 300. 400. 500. 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T2_br.aqtDate: 09/18/19 Time: 11:24:53 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T2) Initial Displacement: 1.989 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.001892 cm/sec y0 = 1.689 ft 0. 100. 200. 300. 400. 500. 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T2_h.aqtDate: 09/18/19 Time: 11:25:26 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T2) Initial Displacement: 1.989 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.002321 cm/sec y0 = 1.7 ft 0. 80. 160. 240. 320. 400. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T3_br.aqtDate: 09/18/19 Time: 11:26:04 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T3) Initial Displacement: -2.217 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.002668 cm/sec y0 = -1.032 ft 0. 80. 160. 240. 320. 400. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T3_h.aqtDate: 09/18/19 Time: 11:24:09 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T3) Initial Displacement: -2.217 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.003257 cm/sec y0 = -0.9884 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T4_br.aqtDate: 09/18/19 Time: 11:23:05 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T4) Initial Displacement: 1.824 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.001779 cm/sec y0 = 1.558 ft 0. 40. 80. 120. 160. 200. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T4_h.aqtDate: 09/18/19 Time: 11:22:47 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T4) Initial Displacement: 1.824 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.001991 cm/sec y0 = 1.339 ft 0. 120. 240. 360. 480. 600. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T5_br.aqtDate: 09/18/19 Time: 11:22:22 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T5) Initial Displacement: -2.454 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.002398 cm/sec y0 = -1.09 ft 0. 120. 240. 360. 480. 600. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T5_h.aqtDate: 09/18/19 Time: 11:21:51 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T5) Initial Displacement: -2.454 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.002991 cm/sec y0 = -1.08 ft 0. 80. 160. 240. 320. 400. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T6_br.aqtDate: 09/18/19 Time: 11:18:35 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T6) Initial Displacement: 2.01 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.001384 cm/sec y0 = 1.321 ft 0. 80. 160. 240. 320. 400. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T6_h.aqtDate: 09/18/19 Time: 11:16:26 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T6) Initial Displacement: 2.01 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.001707 cm/sec y0 = 1.303 ft 0. 60. 120. 180. 240. 300. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T7_br.aqtDate: 09/18/19 Time: 11:14:43 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T7) Initial Displacement: 4.29 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.001573 cm/sec y0 = 3.322 ft 0. 60. 120. 180. 240. 300. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T7_h.aqtDate: 09/18/19 Time: 11:15:39 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T7) Initial Displacement: 4.29 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.002012 cm/sec y0 = 3.345 ft 0. 80. 160. 240. 320. 400. 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T8_br.aqtDate: 09/18/19 Time: 11:12:23 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T8) Initial Displacement: 3.717 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.001464 cm/sec y0 = 2.902 ft 0. 80. 160. 240. 320. 400. 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Downloads\LTW-05-T8_h.aqtDate: 09/18/19 Time: 11:12:57 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: LTW-05 Test Date: 07/16/2019 AQUIFER DATA Saturated Thickness: 38. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (LTW-05-T8) Initial Displacement: 3.717 ft Static Water Column Height: 34.38 ftTotal Well Penetration Depth: 34.38 ft Screen Length: 15. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.001812 cm/sec y0 = 2.858 ft 0. 10. 20. 30. 40. 50. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T1_br.aqtDate: 08/14/19 Time: 11:35:07 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T1) Initial Displacement: -2.414 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.02152 cm/sec y0 = -1.245 ft 0. 10. 20. 30. 40. 50. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T1_h.aqtDate: 08/14/19 Time: 11:35:43 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T1) Initial Displacement: -2.414 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02875 cm/sec y0 = -1.212 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T2_br.aqtDate: 08/14/19 Time: 11:42:46 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T2) Initial Displacement: 1.915 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.01714 cm/sec y0 = 2.105 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T2_h.aqtDate: 08/14/19 Time: 11:43:31 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T2) Initial Displacement: 1.915 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02401 cm/sec y0 = 2.137 ft 0. 50. 100. 150. 200. 250. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T3_br.aqtDate: 08/14/19 Time: 11:52:27 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T3) Initial Displacement: -2.897 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.002666 cm/sec y0 = -1.228 ft 0. 50. 100. 150. 200. 250. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T3_h.aqtDate: 08/14/19 Time: 11:52:04 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T3) Initial Displacement: -2.897 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.003558 cm/sec y0 = -1.19 ft 0. 30. 60. 90. 120. 150. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T4_br.aqtDate: 08/14/19 Time: 11:59:35 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T4) Initial Displacement: 1.907 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.004046 cm/sec y0 = 1.866 ft 0. 30. 60. 90. 120. 150. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T4_h.aqtDate: 08/14/19 Time: 12:00:12 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T4) Initial Displacement: 1.907 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.00555 cm/sec y0 = 1.8 ft 0. 60. 120. 180. 240. 300. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T5_br.aqtDate: 08/14/19 Time: 12:11:02 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T5) Initial Displacement: -2.565 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.003837 cm/sec y0 = -1.005 ft 0. 60. 120. 180. 240. 300. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T5_h.aqtDate: 08/14/19 Time: 12:14:34 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T5) Initial Displacement: -2.565 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.005193 cm/sec y0 = -0.9749 ft 0. 60. 120. 180. 240. 300. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T6_br.aqtDate: 08/14/19 Time: 12:20:48 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T6) Initial Displacement: 1.907 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.004144 cm/sec y0 = 1.868 ft 0. 60. 120. 180. 240. 300. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T6_h.aqtDate: 08/14/19 Time: 12:20:38 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T6) Initial Displacement: 1.907 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.005641 cm/sec y0 = 1.795 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T7_br.aqtDate: 08/14/19 Time: 10:17:22 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T7) Initial Displacement: 2.67 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.01718 cm/sec y0 = 2.659 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T7_h.aqtDate: 08/14/19 Time: 10:17:48 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T7) Initial Displacement: 2.67 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02253 cm/sec y0 = 2.448 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T8_br.aqtDate: 08/14/19 Time: 10:15:50 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T8) Initial Displacement: 3.554 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.01596 cm/sec y0 = 3.469 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T8_h.aqtDate: 08/14/19 Time: 10:15:38 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T8) Initial Displacement: 3.554 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02167 cm/sec y0 = 3.421 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T9_BR.aqtDate: 08/14/19 Time: 10:24:58 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T9) Initial Displacement: 3.436 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Bouwer-Rice K = 0.01487 cm/sec y0 = 3.18 ft 0. 20. 40. 60. 80. 100. 0.001 0.01 0.1 1. Time (sec)Normalized Head (ft/ft)WELL TEST ANALYSIS Data Set: C:\Users\cjoseph\Documents\Fayetteville\Aqtesolv\SMW-12\SMW-12-T9_BR.aqtDate: 08/14/19 Time: 10:25:31 PROJECT INFORMATION Company: Geosyntec Client: Chemours Project: TR0795 Location: Fayetteville, NC Test Well: SMW-12 Test Date: 07/19/2019 AQUIFER DATA Saturated Thickness: 20. ft Anisotropy Ratio (Kz/Kr): 0.1 WELL DATA (SMW-12-T9) Initial Displacement: 3.436 ft Static Water Column Height: 14.01 ftTotal Well Penetration Depth: 14.01 ft Screen Length: 10. ftCasing Radius: 0.17 ft Well Radius: 0.5 ft SOLUTION Aquifer Model: Confined Solution Method: Hvorslev K = 0.02034 cm/sec y0 = 3.163 ft TR0795 APPENDIX F Well Permits and Certifications Geosyntec Consultants of NC, PC 2501 Blue Ridge Road, Suite 430 Raleigh, North Carolina 27607 PH 919.870.0576 www.geosyntec.com 18 July 2019 Mr. Charles Miller District Engineer NCDOT 872 NC 711 Highway Lumberton, NC 28360 Subject: Request for Right of Way Encroachment in Robeson County NC-20 Near Intersection of Dean Road (SR 1919) Geosyntec project # TR0795 NC20-SR1919 On behalf of our client, The Chemours Company FC, LLC, (Chemours), Geosyntec Consultants of NC, PC (Geosyntec) has prepared this request for a Right of Way (ROW) Encroachment as detailed in the following attachments. This request package has been prepared consistent with the State of North Carolina’s standard Right of Way Encroachment Agreement for Non-Utility Encroachments on Primary and Secondary Highways (Form R/W 16.1A –January 1981). Geosyntec is an environmental consulting firm working for Chemours to assess the horizontal and vertical extents of PFAS compounds in groundwater. More specifically, this assessment requires groundwater monitoring wells offsite of Chemour’s Fayetteville Works facility located at 22828 NC Highway 87 West, Fayetteville. Chemours is requesting permission to install two environmental groundwater monitoring wells within NCDOT’s ROW as shown on the attached map, Figure 1. A pair of monitoring wells is proposed within the ROW 50 feet east of the intersection of NC Highway 20 and Dean Road (SR 1919) in the City of St. Pauls in Robeson County. Details are presented in the enclosed attachment to the agreement. We would like to commence drilling by August 12, 2019. Your cooperation in this matter is appreciated. Please contact me at (919) 424-1828 if you need any additional information or if you have any questions regarding this work plan. Sincerely, Beau Hodge Attachments: Access Agreement Terms and Conditions Figures Cc: Greg Burns, NCDOT STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION ROY COOPER JAMES H. TROGDON, III GOVERNOR SECRETARY Mailing Address: NC DEPARTMENT OF TRANSPORTATION DIVISION SIX / DISTRICT TWO POST OFFICE BOX 1150 FAYETTEVILLE, NC 28302 Telephone: (910) 364-0601 Fax: (910) 437-2529 Customer Service: 1-877-368-4968 Website: www.ncdot.gov Location: 600 SOUTHERN AVENUE FAYETTEVILLE, NC 28306 August 23, 2019 Mr. Christel E. Compton The Chemours Company, FC LLC – Fayetteville Works 22828 NC Highway 87 W Fayetteville, NC 28306 SUBJECT: Encroachment Agreement on SR 2229 (Matt Hair Road) for the installation of two (2) groundwater monitoring wells in Cumberland County (E062-026-19-00211). Dear Sir: Attached is an approved R/W form 16.1A and plans for the installation of two (2) co-located flush mount environmental groundwater monitoring wells on SR 2229 (Matt Hair Road) as associated with the Chemours Fayetteville Works project in Cumberland County as shown on the attached plans (Geosyntec project #TR0795 SR2229). Location: Route At a point Towards SR 2229 3,609’± southwest the intersection of SR 2229 (Matt Hair Road) and SR 2023 (Tabor Church Road) SR 2230 This encroachment is approved subject to the following: 1. Within ninety (90) days of the completion of the proposed utility installation, an As-Built drawing(s) and a executed Contractor Certification Memo shall be submitted to the District Office (online encroachment database). The As-Built drawing(s) shall depict the horizontal and vertical locations of all utilities and associated appurtenances. 2. The Cumberland County Maintenance Engineer at (910) 364-0602 and Mr. Troy L. Baker, Senior Assistant District Engineer at (910) 364-0601 shall be notified a minimum of three (3) days before construction is to begin. 3. Traffic will be maintained and proper signs, signal lights, flagmen and other warning devices will be provided for the protection of traffic, in conformance with the latest Manual on Uniform Traffic Control Devices for Streets and Highways. All contractor personnel will be required to wear a class II ANSI approved safety vest while working within the DOT right of way. 4. All lanes of traffic on SR 2229 (Matt Hair Road) are to be open during the hours of 6:00 AM to 9:00 AM and from 4:00 PM to 6:00 PM unless otherwise directed by the Engineer. No lane of traffic shall be closed on holidays, special events, or as directed by the engineer. Traffic shall be maintained at all times. Encroachment – SR 2229 (Matt Hair Road) (E062-026-19-00211) The Chemours Company, FC LLC - Fayetteville Works — Cumberland County Page Two 5. Any flush-mount groundwater monitoring well(s) shall be constructed at grade with the existing ground surface as not to interfere with the positive drainage of the roadway, roadway shoulder, drainage ditch and routine maintenance within departmental rights of way. 6. The proposed groundwater monitoring well(s) and other associated appurtenances are to be placed 5’ or closer off of the right-of- way lines of SR 2229 (Matt Hair Road). All associated appurtenances must be placed behind the ditch line. Associated appurtenances will not be allowed to be placed in the ditch line or on the shoulder of the road. 7. Luminaire and utility poles shall be outside the Clear Recovery Area in accordance with the latest version of the AASHTO Roadside Design Guide or made breakaway in accordance with the requirements of NCHRP Report 350. Associated appurtenances will not be allowed to be placed in the ditch line or on the shoulder of the road. 8. All concrete installed within NCDOT rights of way shall be constructed in accordance with the latest NCDOT Standard Specifications for Roads and Structures and Roadway Standard Drawings and Amendments or Supplementals thereto. All concrete shall be an approved NCDOT Class B mix. All materials testing results shall be provided to the District Engineer upon completion of the project. 9. All concrete sidewalk installed within NCDOT rights of way shall be constructed in accordance with the latest NCDOT Standard Specifications for Roads and Structures and Roadway Standard Drawings (Std. Dwg. No. 846.01 and 848.01) and Amendments or Supplementals thereto. All concrete shall be an approved NCDOT Class B mix. All materials testing results shall be provided to the District Engineer upon completion of the project. 10. All ADA compliant curb ramps shall be constructed in accordance with the latest NCDOT Standard Specifications for Roads and Structures and Roadway Standard Drawings (Std. Dwg. No. 848.06) and Amendments or Supplementals thereto including but not limited to the Alternate Curb Ramp Designs (Curb Ramp Details - Parallel Ramps). All concrete shall be an approved NCDOT Class B mix. All materials testing results shall be provided to the District Engineer upon completion of the project. 11. All 30” curb and gutter within NCDOT rights of way shall be constructed with Class B concrete in accordance with Section 846 of the latest NCDOT Standard Specifications for Roads and Structures and Roadway Standard Drawings (Std. Dwg. No. 846.01) and Amendment or Supplemental thereto or as directed by the engineer. All concrete testing results shall be provided to the District Engineer’s office at time of project completion. 12. Open cuts are not permitted on SR 2229 (Matt Hair Road). 13. Any asphalt that is damaged as a result of construction shall be repaired at the encroaching party’s expense. An NCDOT approved asphalt mix shall be used for all repairs within NCDOT rights of way. Contact Mr. Troy L. Baker, Senior Assistant District Engineer for acceptance of asphalt mix designs. Encroachment – SR 2229 (Matt Hair Road) (E062-026-19-00211) The Chemours Company, FC LLC - Fayetteville Works — Cumberland County Page Three 14. All open cuts (if permitted) on primary routes will require full depth patching with 5.0” of B 25.0 B (ACBC) Asphalt Concrete Base Course, 3.0” of I 19.0 B (ACIC) Asphalt Concrete Intermediate Course and 2.0” of S 9.5 B (ACSC) Asphalt Concrete Surface Course the same day as cut is made. It will also be required to mill the existing pavement surface at a depth of 2.0” and a width of 1.0’ on each side of the cut to key in the patch with the existing pavement surface in accordance with the attached detail. 15. All open cuts (if permitted) on secondary routes will require full depth patching with 4.0” of B 25.0 C (ACBC) Asphalt Concrete Base Course and 3.0” of S 9.5 C (ACSC) Asphalt Concrete Surface Course the same day as cut is made. It will also be required to mill the existing pavement surface at a depth of 1.5” and a width of 1.0’ on each side of the cut to key in the patch with the existing pavement surface in accordance with the attached detail. 16. All fill areas/backfill shall be compacted to 95% density in accordance with AASHTO T99 as modified by the North Carolina Department of Transportation. All material to a depth of 8 inches below the finished surface shall be compacted to a density equal to at least 100% of that obtained by compacting a sample of the material in accordance with AASHTO T99 as modified by the department. The subgrade shall be compacted at a moisture content which is approximately that required to produce the maximum density indicated by the above test method. The contractor shall dry or add moisture to the subgrade when required to provide a uniformly compacted and acceptable subgrade. The trench backfill material shall meet the Statewide Borrow criteria. The trench should be backfilled in accordance with Section 300-7 of the latest NCDOT Standard Specifications for Roads and Structures and Amendments or Supplementals thereto. 17. The party of the second part agrees to provide traffic control devices, lane closures, road closures, positive protection and/or any other warning or positive protection devices necessary for the safety of motorists and workers during construction and any subsequent maintenance. This shall be performed in conformance with the latest NCDOT Roadway Standard Drawings and Standard Specifications for Roads and Structures and Amendments or Supplementals thereto. When there is no guidance provided in the Roadway Standard Drawings or Specifications, comply with the Manual on Uniform Traffic Control Devices for Streets and Highways and Amendment or Supplemental thereto. Information as to the above rules and regulations may be obtained from the Division Engineer of the party of the first part. All contractor personnel will be required to wear a class II ANSI approved safety vest while working within the DOT right of way. 18. Disturbed areas shall have an established stand of vegetation according to the attached specifications for erosion control. 19. An executed copy of this encroachment agreement shall be present at the construction site at all times during construction. If safety or traffic conditions warrant such an action, NCDOT reserves the right to further limit, restrict or suspend operations within the right of way. 20. Written notice of the completion of the work will be furnished to the District Engineer, P. O. Box 1150, Fayetteville, North Carolina 28302, when the work has been completed. 21. SDR-26 PVC pipe shall not be used on NCDOT Rights of Way for lines under pressure. Encroachment – SR 2229 (Matt Hair Road) (E062-026-19-00211) The Chemours Company, FC LLC - Fayetteville Works — Cumberland County Page Four 22. Please be reminded that all OSHA Standards regarding trenching and shoring should be strictly adhered to. 23. The Contractor shall comply with all OSHA requirements and provide a competent person on site to supervise excavation at all times. 24. The Department of Transportation does not guarantee the right of way on this road, nor will it be responsible for any claim for damages brought by any property owner by reason of the installation. 25. The encroaching party shall comply with all applicable federal, state, and local environmental regulations, and shall obtain all necessary federal, state, and local environmental permits, including but not limited to, those related to sediment control, storm water, wetland, streams, endangered species, and historical sites. 26. Trenching, bore pits and/or other excavations shall not be left overnight. The contractor shall comply with all OSHA requirements and provide a competent person on site to supervise excavation at all times. 27. An executed copy of this encroachment agreement shall be present at the construction site at all times during construction. If safety or traffic conditions warrant such an action, NCDOT reserves the right to further limit, restrict or suspend operations within the right of way. 28. Written notice of the completion of the work will be furnished to the District Engineer, P. O. Box 1150, Fayetteville, North Carolina 28302, when the work has been completed. 29. SDR-26 PVC pipe shall not be used on NCDOT Rights of Way for lines under pressure. 30. Please be reminded that all OSHA Standards regarding trenching and shoring should be strictly adhered to. 31. The Contractor shall comply with all OSHA requirements and provide a competent person on site to supervise excavation at all times. 32. No material storage shall be allowed along the shoulders of the roadway, and during non-working hours, equipment shall be parked as close to the right of way line as possible and shall be properly barricaded so that no equipment obstruction shall be within the Clear Recovery Area. No parking or material storage shall be allowed along the shoulders of any state maintained roadway. 33. The Department of Transportation does not guarantee the right of way on this road, nor will it be responsible for any claim for damages brought by any property owner by reason of the installation. 34. The encroaching party shall comply with all applicable federal, state, and local environmental regulations, and shall obtain all necessary federal, state, and local environmental permits, including but not limited to, those related to sediment control, storm water, wetland, streams, endangered species, and historical sites. Encroachment – SR 2229 (Matt Hair Road) (E062-026-19-00211) The Chemours Company, FC LLC - Fayetteville Works — Cumberland County Page Five 35. Excavations inside the theoretical 1:1 slope from the existing edge of pavement to the bottom of the nearest excavation wall should be made in accordance with the following conditions:  The trench backfill material should meet the Statewide Borrow Criteria. The trench should be backfilled in accordance with Section 300-7 of the latest NCDOT Standard Specifications for Roads and Structures, which basically requires the backfill material to be placed in layers not to exceed 6 inches loose and compacted at least 95% of the density obtained by compacting a sample in accordance with AASHTO T99 as modified by the NCDOT.  All trench excavation inside the limits of the theoretical 1:1 slope, as defined by the policy, should be completely backfilled and compacted at the end of each construction day. No portion of the trench shall be left open overnight. 36. When personnel and/or equipment are working on the shoulder adjacent to an undivided facility and within five (5) feet of an open travel lane, close the nearest open travel lane using Standard Drawing No. 1101.02 unless the work area is protected by barrier or guardrail. When personnel and/or equipment are working within a lane of travel of an undivided or divided facility, close the lane according to the traffic control plans, or as directed by the Engineer. Conduct the work so that all personnel and/or equipment remain within the closed travel lane. Do not work simultaneously, on both sides of an open travel way, within the same location, on a two-lane, two-way road. Do not perform work involving heavy equipment within fifteen (15) feet of the edge of travel way when work is being performed behind a lane closure on the opposite side of the travel way. Perform work only when weather and visibility conditions allow safe operations as directed by the Engineer. 37. Drainage structures shall not be blocked with excavation materials. Any drainage structure disturbed or damaged shall be restored to its original condition as directed by the District Engineer. 38. Any disturbed guardrail shall be reset according to the applicable standard or as directed by the District Engineer. 39. All driveways altered during construction shall be returned to a state comparable with the condition of the driveways prior to construction. 40. All roadway signs which are removed which are removed due to construction shall be reinstalled as soon as possible. 41. Any proposed driveway connections onto NCDOT roadways will require an approved driveway permit. The approval of this Two Party encroachment (RW 16.1A) does not constitute approval of any proposed driveway connections. For further information, contact Mr. Troy L. Baker, Senior Assistant District Engineer at (910) 364-0601. 42. Excavated areas adjacent to pavement having more than a 2” drop shall be safed up at a 6:1 or flatter slope and designated by appropriate delineation during periods of inactivity, including, but not limited to, night and weekend hours. Excavated material shall not be placed on the roadway at any time. Encroachment – SR 2229 (Matt Hair Road) (E062-026-19-00211) The Chemours Company, FC LLC - Fayetteville Works — Cumberland County Page Six 43. NCDOT reserves the right to further limit, restrict, or suspend operations within the Right of Way if, in the opinion of NCDOT, safety or traffic conditions warrant such action. 44. It shall be the responsibility of the encroaching party to determine the location of other utilities within the encroachment area. The encroaching party shall be responsible for notifying other utility owners and providing protection and safeguards to prevent damage or interruption to existing facilities and to maintain accessibility to existing utilities. 45. A qualified NCDOT inspector should be on site at all times during construction. The encroaching party should be required to reimburse NCDOT for the cost of providing the inspector. If NCDOT cannot supply an inspector, the encroaching party (not the utility contractor) should make arrangements to have a qualified inspector under the supervision of a Professional Engineer registered in North Carolina, on site at all times. The Registered Engineer should be required to certify that the structures have been installed in accordance with the encroachment agreement and that the backfill material meets the Statewide Borrow Criteria. 46. Excavation within 1000 feet of a signalized intersection will require notification by the party of the second part to the Division Traffic Engineer at telephone number (910) 364- 0606. All traffic signal or detection cables must be located prior to excavation. 47. All temporary and final paving markings are the responsibility of the encroaching party. Final pavement markings and sign plans shall be submitted to the Division Traffic Engineer at telephone number 910-364-0606 for review and approval. 48. The pavement marking contractor is required to have at least one member of every pavement marking crew that is working on the project, preferably the Crew Supervisor, be certified through the NCDOT Pavement Marking Technician Certification Process. For more information please contact the Work Zone Traffic Control Unit at (919) 773-2800 or http://www.ncdot.org/doh/preconstruct/wztc/”. 49. Prior to installing pavement markings, contact Mr. Frank West with the NCDOT Division Six Traffic Services Unit at 910-364-0606 to review the proposed pavement-marking layout. This notification should take place a minimum of 48 hours in advance of the pavement marking installation. 50. Failure to contact the Traffic Services Unit to review the pavement-marking layout prior to installation may result in the removal and reinstallation of the markings at the expense of the Permittee. 51. All utility facilities, including but not limited to manholes, valve boxes, meter boxes, splice boxes, junction boxes, vaults, and covers within NCDOT right of way shall have been designed for HS-20 loading. A listing of currently approved manholes, valve boxes, and vaults is available at the following site: https://apps.dot.state.ns.us.vendor/approvedproducts . If any proposed structure is not of a design pre-approved by NCDOT, the encroaching party shall submit details and calculations designed by a Professional Engineer registered in North Carolina for approval prior to construction. Encroachment – SR 2229 (Matt Hair Road) (E062-026-19-00211) The Chemours Company, FC LLC - Fayetteville Works — Cumberland County Page Seven 52. All utility access points, including but not limited to manholes, splice boxes, junction boxes, and vaults shall be located outside of the right of way line. Manholes, splice boxes, junction boxes, and vaults shall not be placed in the ditch line, side slopes of the ditches, or in the pavement. All manholes, splice boxes, junction boxes, vaults, and covers shall be flush with the ground when located within the vehicle recovery area. NCDOT WORK ZONE TRAFFIC CONTROL QUALIFICATIONS AND TRAINING PROGRAM All personal performing any activity inside the highway right of way are required to be familiar with the NCDOT Maintenance / Utility Traffic Control Guidelines (MUTCG). No specific training course or test is required for qualification in the Maintenance / Utility Traffic Control Guidelines (MUTCG). All flagging, spotting, or operating Automated Flagger Assist Devices (AFAD) insidethe highway right of way requires qualified and trained Work Zone Flaggers. Training for this certification is provided by NCDOT approved training resources and by private entities that have been pre-approved to train themselves. All personnel in charge of overseeing work zone Temporary Traffic Control operations and installations inside the highway right of way are required to be qualified and trained Work Zone Supervisors. Training for this certification is provided by NCDOT approved training resources. For questions and/or additional information regarding this training program please refer to our web site at https://connect.ncdot.gov/projects/WZTC/Pages/Training.aspx or call J.S. (Steve) Kite, PE at (919) 662-4339 or skite@ncdot.gov or Roger Garrett at (919) 662-4383 or rmgarrett@ncdot.gov, both with the NCDOT Work Zone Traffic Control Section. If further information or assistance is needed in reference to this project, please feel free to call Mr. Lee R. Hines, Jr. (R