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HomeMy WebLinkAbout4116_Guilford_WI_GFL_HighPoint_CDLF_Jan2020GW_FID1394275_20200313ENR USE ONLY: J I ❑Paper Report ❑E.leclronic Data - Email CD tdata loaded: Yes !Rio) Doc/Event #: NC DEP)R I I Environmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any Information attached to It are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: • Prepare one form for each Individually monitored unit. • please type or print legibly. Attach a notification table with values [hat attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g, naturally occurring, off -site source, pre-existing condition, etc.). Attach a nolification table of any groundwater or surface water values that equal or exceed the reporting limits. • Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i)_ Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCOENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Golder Associates NC, Inc. on behalf of Waste Industries of High Point, I -LC Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: David Y. Reedy II, P.G. Phone: 336-852-4903 E-mail: dreed viMaolder.com NC Landfill Rule: Actual sampling dates (e.g„ Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20.24, 2006) Waste Industries of High Point 5830 Riverdale Drive, Jamestown, NC 41-16 .0500 January 29-30 2020 CE,D Landfill 27282 Environmental Status: (Check all that apply) LI InitiallBackground Monitoring ❑ Detection Monitoring Q Assessment Monitoring Corrective Action 3 of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Groundwater monitoring data from private water supply wells Leachate monitoring data Surface water monitoring data 0 Methane gas monitoring data Corrective action data (specify) Other(specify) Notification attached? No. No groundwater or surface water standards were exceeded. X Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification Including the possibility of a fine and imprisonment. David Y. Reedy II, PG Senior Hydrogeologisl 336-852.4903 Fact ' tive Name Title (Area Code) Telephone Number Af v NC Licensed/ Professional Geologist Seal ": glk0�[Aftf $Igna[ure Date ,�r11 t`a6 Golder Associates NC, Inc-, 513 Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address C-2862 NC PE Firm License Number (if applicable effective May 1 2009) Revised 612009 J GOLDER REPORT FIRST SEMI-ANNUAL 2020 WATER QUALITY MONITORING REPORT High Point Construction & Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Submitted to: High Point C&D Landfill, LLC 5830 Riverdale Drive Jamestown, NC 27282 Submitted by: Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North Carolina, USP 97am +1 336 852-4903 20137881.101 March 13, 2020 March 13, 2020 Distribution List 20137881.101 Seth Heath, General Manager, 5830 Riverdale Drive, Jamestown, NC 27282, seth.heath@gflenv.com, 336-886-3560. Catherine Hernandez, Operations Supervisor, 5830 Riverdale Drive, Jamestown, North Carolina 27282, Catherine.hernandez@gflenv.com. (Electronic Copy) David Pepper, Vice President, 3301 Benson Drive, Suite 601, Raleigh, NC 27609, David.pepper@gflenv.com, 919-877-2235. (Electronic Copy) Bryan Wuester, Corporate Landfill Director, 3301 Benson Drive, Suite 601, Raleigh, NC 27609, bryan.wuester@gflenv.com. (Electronic Copy) Travis Hitchcock, Region Vice President, 3301 Benson Drive, Suite 601, Raleigh, NC, 27609, travis.hitchcock@gflenv.com. (Electronic Copy) Jaclynne Drummond, Hydrogeologist, North Carolina Department of Environmental Quality, Division of Waste Management - Solid Waste Section, 2090 US Highway 70, Swannanoa, NC 28778, jaclynne.drummond@ncdern.gov, 828-296-4706. GOLDER March 13, 2020 20137881.101 Executive Summary Golder Associates NC, Inc. (Golder) is submitting the enclosed Water Quality Monitoring Report on behalf of Waste Industries of High Point, LLC (Waste Industries), which documents the results of the January 29 - 30, 2020, semi-annual compliance monitoring event at the High Point Construction and Demolition Landfill. Three North Carolina (NC) Appendix I inorganic constituents (barium, cobalt, and vanadium) were detected at quantifiable concentrations above their applicable groundwater standards during the January 2020 event. Cobalt was detected at one or more wells at estimated concentrations below the practical quantitation limit (PQL) but above applicable groundwater standards during this event. As the concentrations are below their respective PQLs, no further action is warranted. Indicator parameters iron, manganese, and total dissolved solids (TDS) were detected at quantifiable concentrations above their respective NC 2L Standards in samples from one or more downgradient wells during this event, as they have been during previous events. As presented in previous reports and alternate source demonstrations (ASDs), based on published soil and stream sediment metals data for Guilford County, the barium, cobalt, vanadium, iron, and manganese concentrations reported in the groundwater samples were visually compared to and are generally within natural background concentrations. Piezometer P-3, which is located upgradient of the waste unit, was sampled during the January 2020 event to collect additional inorganic constituent data to further evaluate concentrations of inorganic constituents recently detected in samples from downgradient wells. One NC Appendix I organic compound, benzene, was detected above the NC 2L Standard in the sample from groundwater monitoring wells MW-6 during the January 2020 event, as it has been previously. Additionally, 1,4-dioxane was detected in the samples from MW-2, MW-5, MW-6, MW-8, AMW-1, and AMW-2 at quantifiable concentrations above the groundwater protection standard; this constituent was analyzed per the May 30, 2018, NC Department of Environmental Quality (DEQ) memorandum and is not part of the facility permit -required testing. One NC Appendix I inorganic compound, copper, was detected at a concentration that exceeded the applicable surface water standards in the sample from upstream surface water monitoring point SW-1 during the January 2020 event. As this is an upstream monitoring location, no further action is warranted. There were no NC Appendix I organic compounds detected at concentrations which exceeded applicable surface water standards during this event. 1,4-dioxane was reported at quantifiable concentrations above the applicable surface water standard in upstream monitoring point SW-3 and downstream surface water monitoring point SW-4. 1,4-dioxane was also reported at an estimated concentration above the applicable surface water standard in downstream monitoring point SW-2. Because 1,4-dioxane was detected in the upstream monitoring point at a similar concentration, it appears that the source in surface water is not the landfill unit, and no further action is warranted. Based on these results, the facility will continue groundwater monitoring in accordance with the requirements of the Assessment Monitoring Program as outlined in Title 15A NCAC 13B .0545. During the January 2020 event, Waste Industries sampled piezometer P-3, which is located upgradient of the waste unit, to collect additional inorganic constituent data to further evaluate concentrations of inorganic constituents recently detected in samples from downgradient wells. This was the second of ten planned sampling events. The next event is tentatively scheduled for July 2020. 4 GOLDER March 13, 2020 20137881.101 Table of Contents 1.0 INTRODUCTION.............................................................................................................................................1 1.1 Site Description and Background.........................................................................................................1 1.2 Compliance Monitoring History ............................................................................................................1 1.3 Hydrogeologic Setting..........................................................................................................................2 2.0 FIELD PROGRAM, MONITORING RESULTS AND DISCUSSION..............................................................3 2.1 Visual Inspection Program...................................................................................................................3 2.2 Well Network and Groundwater Elevation Measurements..................................................................4 2.3 January 2020 Groundwater and Surface Water Monitoring Event......................................................4 2.4 Laboratory Analysis Program...............................................................................................................5 3.0 LABORATORY AND FIELD QA/QC..............................................................................................................5 4.0 DATA EVALUATION......................................................................................................................................5 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons...............................5 5.0 CONCLUSIONS..............................................................................................................................................6 6.0 REFERENCES................................................................................................................................................6 TABLES Table 1 Summary of Historical Groundwater Elevation Data in Monitoring Wells Table 2 Summary of Estimated Horizontal Flow Velocities Table 3 Summary of Well Construction Information Table 4 Summary of Detected Constituents in Groundwater Table 5 Summary of Field Parameters in Groundwater Table 6 Summary of Detected Constituents in Surface Water Table 7 Summary of Field Parameters in Surface Water Table 8 Comparison of Field Parameters to Evaluate Pore Water Sampling ;1[r111N:K Figure 1 Groundwater Contour Map, January 29, 2020 APPENDICES Appendix A Groundwater and Surface Water Sampling Logs Appendix B January 2020 Groundwater and Surface Water Certificate -Of -Analysis, Chain -Of Custodies, and Laboratory Data Reviews GOLDER iii March 13, 2020 20137881.101 1.0 INTRODUCTION This report summarizes the monitoring results from the January 29 - 30, 2020, semi-annual compliance monitoring event at the High Point Construction & Demolition (C&D) Landfill in Guilford County, North Carolina (NC) in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 1313.0545. The active C&D Landfill is owned and operated under Permit No. 41-16 issued by the NC Department of Environmental Quality (DEQ). 1.1 Site Description and Background The location of the facility is shown on the inlay on Figure 1. As presented, High Point C&D Landfill is located along Riverdale Road within the city limits of Jamestown in Guilford County, NC. The site consists of approximately 154 acres, of which, approximately 17.2 acres is currently permitted as the Phase 1 and Phase 2 waste units. There are three small unnamed streams that traverse the site and flow into an unnamed tributary of Richland Creek, which forms the southern property boundary as shown on Figure 1. The first unnamed tributary is a southwest trending stream that forms the northwestern property boundary. The second tributary is a southwest trending drainage in the center of the property and lies just east of the Phase 2 waste unit. The third tributary is a southwest trending drainage in the eastern portion of the site. A large man-made pond is located near the eastern property boundary. A small storm water basin was constructed in the northwest corner of the facility and a larger storm water basin was constructed along the southwestern part of the site during the construction of Phase 1. Topographic surface elevations at the facility range from approximately 700 to 820 feet above mean sea level. The western portion of the site mainly consisted of trees and heavy brush before Phase 1 of the C&D landfill was constructed. Now, most of that area consists of landfill operations. The eastern portion of the site has historically been used for agricultural purposes. A reclamation facility is located at the northernmost part of the site. A large portion of the surrounding properties are agricultural, sparse residential, or owned by the City of High Point for operations associated with Kersey Valley Landfill. 1.2 Compliance Monitoring History Groundwater monitoring at the facility was initiated in October 2003 after approval of the Groundwater Monitoring Plan by the NC DEQ. Currently the facility's monitoring network is comprised of eight monitoring wells (MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, and MW-8), which monitor the uppermost aquifer beneath the facility. Monitoring wells MW-7S and MW-8 were installed in July 2006 to monitor the Phase 2 expansion at the facility. Two assessment monitoring wells, AMW-1 and AMW-2, were installed in December 2016. In addition to the groundwater monitoring points, the facility's monitoring network includes four surface water sampling points, SW-1 and SW-3, which are upstream from the waste area, and SW-2 and SW-4, which are downstream monitoring points. These points are sampled in conjunction with the groundwater monitoring wells in accordance with the facility's permit. Vinyl chloride and benzene were detected in the sample from downgradient monitoring well MW-2 at concentrations above their respective reporting limits and NC 2L Standards during the July 2014 sampling event. On February 3, 2015, an Alternate Source Demonstration (ASD) was submitted in response to this detection that provided evidence that an unidentified source other than the waste unit is likely responsible for the volatile organic GOLDER March 13, 2020 20137881.101 compounds (VOCs) detected in the samples from MW-2. On March 2, 2015, NC DEQ issued a response letter that allowed an additional six months to assess potential sources of VOCs. Benzene was detected in the sample from MW-2 at a concentration above the SWSL and NC 2L Standard during the August 2015 sampling event and the facility transitioned to an Assessment Monitoring Program. An Assessment Monitoring Notification and Work Plan (Work Plan) was submitted to the NC DEQ on December 7, 2015, and was approved on January 28, 2016. The approved Work Plan stated that samples from groundwater monitoring wells MW-1 and MW-2 would be analyzed for the NC Appendix II list of constituents during the first semi-annual water quality monitoring event of 2016 and during subsequent events, MW-1 and MW-2 would be analyzed for NC Appendix I list of constituents plus detected NC Appendix II constituents. No additional NC Appendix II constituents were detected in the samples from MW-1 and MW-2 during the February 2016 event and therefore, future events will be analyzed for the NC Appendix I list of constituents. Benzene was detected in the sample from MW-6 at a concentration above the SWSL and NC 2L Standard during the July 2016 sampling event. Based on the July 2016 monitoring results, an Assessment Monitoring Notification and Work Plan Addendum (Addendum) was submitted to the NC DEQ on October 21, 2016, and was approved on October 31, 2016. The approved Addendum stated that assessment monitoring wells, AMW-1 and AMW-2, would be installed downgradient of MW-2 and MW-6, respectively. The Addendum also stated that samples from groundwater monitoring wells MW-6, AMW-1, and AMW-2 would be analyzed for the NC Appendix II list of constituents during the first semi-annual water quality monitoring event of 2017 and during subsequent events MW-6, AMW-1, and AMW-2 would be analyzed for NC Appendix I list of constituents plus detected NC Appendix II constituents. Assessment monitoring wells AMW-1 and AMW-2 were installed in December 2016 in accordance with the Addendum and sampled for the first time during the January 2017 event. As part of ongoing remedial efforts, High Point C&D Landfill completed final soil cap construction for Phases 1 and 2 in July 2017. Additionally, 14 in waste passive landfill gas vents were installed, some of which are located in proximity to areas of known VOC groundwater contamination at groundwater monitoring wells MW-2, MW-6, and MW-8. Based on average horizontal groundwater flow rates for the facility which are relatively low, it could take more than 25 years for groundwater located below the landfill gas vents to travel to the impacted groundwater monitoring wells. High Point C&D Landfill is continuing to evaluate the effects of the recently installed soil cap and landfill gas vents on groundwater quality along the western waste boundary at MW-2, MW-6, and MW-8 prior to evaluating any additional remedies. In response to exceedances of groundwater standards of inorganic constituents, Golder submitted an Assessment Monitoring Work Plan Addendum (AWMPA) on November 8, 2019, which proposed sample existing piezometer P-3 for inorganic constituents over five years to establish background concentrations. Well MW-15 was installed on May 9, 2019. The AWMPA was approved by the NC DEQ on November 14, 2019. 1.3 Hydrogeologic Setting Geologically, the facility is located within the Carolina Slate Belt of the Piedmont Physiographic Province of North Carolina (NCGS, 1985). Generally, the Carolina Slate Belt consists of Late Proterozoic to Cambrian volcanic and greenschist-facies metasedimentary rocks intruded by plutonic suites (Butler and Secor, 1991). The site geology is characterized by a regional -scale felsic intrusive complex, which consists mainly of white to gray, fine- to coarse -grained, massive to foliated metamorphosed granitic rock. The region is characterized by regional and small scale Mesozoic diabase dikes. GOLDER 2 March 13, 2020 20137881.101 The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of saprolite, partially weathered rock (PWR), and granitic bedrock. Groundwater occurs at depths of approximately 25 feet below grade along the northern upgradient side of the waste disposal area, and at a depth of less than 10 feet below grade along the perimeter downgradient boundary. Depth to water measurements, obtained during the January 2020 monitoring event and summarized in Table 1, were used to prepare a groundwater surface contour map presented on Figure 1. Surface water and groundwater at the site generally flows south to southwest towards a tributary of Richland Creek. Richland Creek is approximately 1300 feet south of the site and flows to the Deep River, which is approximately 0.5 miles from the site. Groundwater beneath the site flows in three distinguishable and vertically interconnected hydrogeologic units; saprolite, PWR, and bedrock. The groundwater surface contour map and interpreted flow directions are consistent with previously submitted interpretations for this facility. Based on the January 29, 2020, groundwater contour map, the average hydraulic gradient in the shallow aquifer underlying the site, as measured along the conceptual flow path shown on the contour map, was calculated to be approximately 0.046 feet per foot (Table 2). Groundwater velocities were calculated using a hydraulic conductivity of 1.37E-05, which is the geometric mean of the hydraulic conductivities for each of the hydrogeologic units present at the facility. The estimated effective porosity of the shallow aquifer is expected to range from 0.20 (saprolite) to 0.09 (fractured rock). The effective porosity of the fractured rock was used in calculations to provide a conservative estimate of groundwater flow. Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the facility was calculated using the following modified Darcy equation: Vgw = KI/ne where Vgw = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal hydraulic gradient, and ne = effective porosity. The average estimated linear groundwater flow velocity under the waste management unit is approximately 6.7 feet/year, which is generally consistent with previous estimates (Table 2). The range of groundwater flow is expected to vary depending on the hydrogeologic unit in which it occurs. The linear velocity equation above makes the simplified assumptions of a homogeneous and isotropic aquifer. Therefore, this equation represents a likely average value for the uppermost aquifer and does not account for heterogeneous and/or anisotropic conditions that may be present in the uppermost aquifer at the facility. 2.0 FIELD PROGRAM, MONITORING RESULTS AND DISCUSSION Field activities conducted for the January 2020 sampling event are discussed in the following sections. 2.1 Visual Inspection Program In order to ensure that a potential release is detected at the earliest possible time, the visual inspection program is used by Golder personnel at the High Point C&D Landfill. This program includes physical indicators such as potential water table mounding beneath the waste management unit, physical examination of any stresses in biological communities, visible signs of leachate migration (i.e., leachate seeps), unexplained changes in soil characteristics, and any other change to the environment due to the waste management unit. During the January 2020 compliance monitoring event no physical indicators of a potential release were observed in the vicinity of the waste management areas. GOLDER March 13, 2020 20137881.101 2.2 Well Network and Groundwater Elevation Measurements The current approved network of groundwater monitoring wells at the facility consists of eight compliance monitoring wells and two assessment monitoring wells. Monitoring well construction information is summarized on Table 3 and the well locations are shown on Figure 1. The well locations were selected to yield groundwater samples representative of the conditions in the uppermost aquifer underlying the facility, and to monitor for potential releases from the landfill unit. Two upstream (SW-1 and SW-3) and two downstream (SW-2 and SW-4) surface water monitoring points are also monitored and are shown on Figure 1. Monitoring well MW-1 is the facility's background well and is located hydraulically upgradient of the waste disposal area. Monitoring wells MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and AMW-2, are located downgradient of the waste disposal area and represent the facility's downgradient wells. Piezometer P-3 is located upgradient and is currently being sampled during semi-annual water quality monitoring events to establish inorganic background concentrations. Depth -to -water measurements were recorded to the nearest 0.01 foot prior to initiating groundwater purging and sampling activities. The respective groundwater level elevations for this event are presented in Table 1 along with historical water level data. As presented, the data indicate that the hydraulic head level in the uppermost aquifer beneath the facility is fairly consistent, with temporal variation from the long-term average limited to approximately 5 feet (plus or minus). As expected, the range in fluctuation appears to be greater in the upgradient well MW-1, as this well is located in a groundwater recharge area. The range in fluctuation in downgradient compliance wells, which are located near groundwater discharge areas, is much less, presumably due to the stabilizing effect of the hydraulic discharge boundary. 2.3 January 2020 Groundwater and Surface Water Monitoring Event Personnel from Golder visited the facility on January 29 - 30, 2020, to purge and sample monitoring wells MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, AMW-2, and P-3 and to sample surface water monitoring points SW-1, SW-2, SW-3, and SW-4. Depth -to -water measurements were obtained from the network monitoring wells and additional wells (MW-4D and MW-7D) to the nearest 0.01 foot using an electronic water leve indicator prior to purging the wells. Compliance and assessment monitoring wells were purged and sampled using low -flow sampling techniques from dedicated bladder pumps. Piezometer P-3 was purged and sampled using low -flow sampling techniques from a portable bladder pump. Measurements of temperature, pH, specific conductivity, dissolved oxygen (DO), oxidation-reduction potential (ORP), and turbidity were recorded on approximately 3- to 5-minute intervals during the purge, depending on the purge rate. In general, the purge rate was matched to the yield of the monitoring well, as determined by continuously monitoring the depth -to -water, not allowing the purge rate to exceed 350 milliliters per minute. Purging was continued until stabilization was indicated by the field parameters. Prior to sampling, the laboratory -supplied sample containers were prepared. Each sample container was labeled with the sample identification number, sampling personnel, date and time of sample collection, project name and number, and requested chemical analyses. The required groundwater samples were collected directly from the bladder pump discharge lines into the labeled, laboratory -supplied, pre -preserved sample containers after purging was completed based on stabilization of field parameters. GOLDER March 13, 2020 20137881.101 The surface water samples were collected directly from the stream flow, by lowering the sample containers into the stream flow with the opening facing away from the current flow, taking care to prevent the over flow of the sample containers and to minimize sample -induced turbidity. Measurements of temperature, pH, specific conductivity, DO, ORP, and turbidity were recorded during the collection of the surface water samples. After collection, the samples were placed in a cooler on ice, under chain -of -custody control. Copies of the sampling logs are presented in Appendix A. Included in each log is a description of the sampling equipment, sampling location, sampling method, field observations, and field measurements 2.4 Laboratory Analysis Program The January 2020 groundwater and surface water samples were shipped to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of -custody control for analysis. As presented, the January 2020 groundwater samples from MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and AMW-2 were analyzed for the NC Appendix I list of constituents plus the C&D indicator parameters specific to 15A NCAC 13B .544(a)(1)(D), tetrahydrofuran, and 1,4-dioxane. The surface water samples at the facility were analyzed for the NC Appendix I list of constituents plus tetrahydrofuran and 1,4-dioxane. P-3 was analyzed for NC Appendix I metals plus mercury, manganese and iron. The samples were received at the laboratory on January 31, 2020, in good condition and properly preserved. 3.0 LABORATORY AND FIELD QA/QC A field blank was collected by Golder personnel as part of the January 2020 sampling event. ENCO analyzed the field blank for the NC Appendix I list of constituents plus iron; manganese; mercury; 1,4-dioxane; and tetrahydrofuran. In addition to the field blank, a laboratory -prepared trip blank accompanied the volatile sample containers to and from the laboratory and was analyzed for NC Appendix I VOCs plus 1,4-dioxane and tetrahydrofuran. ENCO analyzed the laboratory blanks for the same parameters analyzed for the groundwater samples. A review of the laboratory data was performed by Golder personnel and is included in Appendix B. Based on data reviews performed by Golder, no data qualification was necessary. 4.0 DATA EVALUATION 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons Analytical results and field parameters for the January 2020 groundwater samples are summarized in Tables 4 and 5 along with available historical data. As presented in Table 4, Three NC Appendix I inorganic constituents (barium, cobalt, and vanadium) were detected at quantifiable concentrations above their applicable groundwater standards during the January 2020 event; barium at MW-6, cobalt at MW-6, MW-8, and AMW-1, and vanadium at MW-7S. Cobalt was also detected at estimated concentrations below the PQL, but above the groundwater standard, in the samples from MW-2, MW-5, and AMW-2. As the concentrations are estimated (i.e., non -quantifiable) concentrations below the method reporting limits, per the 15A NCAC 02L .0202 (b)(1), no regulatory actions should be taken for estimated values below the reporting limits (a.k.a. PQLs) that are above groundwater standards. The indicator parameters iron, manganese, and total dissolved solids (TDS) were detected at quantifiable concentrations above their respective NC 2L Standards in samples from one or more downgradient wells during GOLDER March 13, 2020 20137881.101 this event. As presented in previous reports and ASDs, based on published soil and stream sediment metals data for Guilford County, the barium, cobalt, vanadium, iron, and manganese concentrations reported in the groundwater samples were visually compared to and are generally within natural background concentrations. Further, additional analytical data is being collected from upgradient piezometer P-3 during semi-annual monitoring events to evaluate inorganic concentrations for the next four years. One NC Appendix I VOC, benzene, was detected at quantifiable concentrations above the NC 2L Standard in the sample from MW-6 during the January 2020 event. Benzene was not detected at a concentration above the NC 2L Standard in the sample from AMW-2, which is located downgradient of MW-6. Additionally, 1,4-dioxane was detected in the samples from MW-2, MW-5, MW-6, MW-8, AMW-1, and AMW-2 at quantifiable concentrations above the groundwater protection standard; this constituent was analyzed per the May 30, 2018, NC Department of Environmental Quality (DEQ) memorandum and is not part of the facility permit -required testing. As stated in Section 1.2, a final soil cap was completed for Phases 1 and 2 and 14 gas vents were installed into the landfill in July 2017. Due to the relatively low flow rates downgradient of the landfill, the effects of these improvements on water quality are still being evaluated Analytical results and field parameters for the January 2020 surface water samples are summarized in Tables 6 and 7 along with available historical data. One NC Appendix I constituent was reported at a concentration above its applicable surface water standards during the event (copper) at upstream monitoring location SW-1. As this is an upstream monitoring location, no further action is warranted. 1,4-dioxane was reported at quantifiable concentrations above the applicable surface water standard in upstream monitoring point SW-3 and downstream surface water monitoring point SW-4. 1,4-dioxane was also reported at an estimated concentration above the applicable surface water standard in downstream monitoring point SW-2. Because 1,4-dioxane was detected in the upstream monitoring point at a similar concentration, it appears that the source in surface water is not the landfill unit, and no further action is warranted. 5.0 CONCLUSIONS During the January 2020 event, Waste Industries sampled piezometer P-3, which is located upgradient of the waste unit, to collect additional inorganic constituent data to further evaluate concentrations of inorganic constituents recently detected in samples from downgradient wells. This was the second of ten planned sampling events. The facility will continue monitoring in accordance with the requirements of the Assessment Monitoring Program as outlined in Title 15A NCAC 13B.0545, the Work Plan, and Addendum. The next groundwater monitoring event is tentatively scheduled for July 2020. 6.0 REFERENCES Butler, J. Robert and Secor, Donald T., Jr., 1991, The Central Piedmont, in Horton, J. W., Jr., and Zullo,V.A., eds., The Geology of the Carolinas: The University of Tennessee Press, p. 59 78. Joyce Engineering, Inc., 2002, Hydrogeologic Report & Groundwater Monitoring Plan; Volume One; Site Application, Section ll; MRR of High Point, LLC Construction and Demolition Debris Landfill, HighPoint, North Carolina. Revised January 2003 and March 2003. NCGS (North Carolina Geologic Survey), 1985. Geologic Map of North Carolina United States Environmental Protection Agency, November 2003. Guidance for Developing Ecological 4 GOLDER March 13, 2020 Soil Screening Levels. 20137881.101 GOLDER March 13, 2020 Signature Page Golder Associates NC, Inc. David "Dusty" Y. Reedy II, PG Senior Hydrogeologist Rachel P. Kirkman, PG Associate and Senior Consultant Engineering Lic. No. C-2862IGeology Lic. No. C-399 20137881.101 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. Golder and the G logo are trademarks of Golder Associates Corporation. 4 GOLDER Tables March 2020 20137881.101 TABLE 1 Summary of Historical Groundwater Elevation Data in Monitoring Wells Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Monitoring Wells MW-1 MW-2 MW-3 MW-4S MW-413 MW-5 MW-6 MW-7S MW-7D MW-8 AMW-1 AMW-2 P-3 TOC Elevation 813.17 754.85 755.48 733.76 734.23 747.83 735.23 761.20 763.27 762.60 753.28 730.57 790.06 (ft AMSL) DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation Date ft ft AMSL ft (ft AMSL ft ft AMSL ft ft AMSL (ft) (ft AMSL) ft ft AMSL ft ft AMSL (ft) (ft AMSL) (ft) (ft AMSL) (ft) (ft AMSL) (ft) (ft AMSL) (ft) (ft AMSL) (ft) (ft AMSL) 10/08/03 17.80 795.37 6.42 748.43 16.00 739.48 5.47 728.29 --- --- 7.52 741.04 8.57 726.66 --- --- --- --- --- --- --- --- --- --- --- --- 01 /23/04 18.40 794.77 6.97 747.88 16.58 738.90 6.00 727.76 --- --- 12.95 734.88 10.97 724.26 --- --- --- --- --- --- --- --- --- --- --- --- 07/08/04 19.09 794.08 6.80 748.05 18.71 736.77 6.16 727.60 --- --- 12.39 735.44 10.90 724.33 --- --- --- --- --- --- --- --- --- --- --- --- 01 /25/05 19.88 793.29 6.70 748.15 16.95 738.53 5.85 727.91 --- --- 11.65 736.18 11.00 724.23 --- --- --- --- --- --- --- --- --- --- --- --- 07/06/05 19.19 793.98 8.01 746.84 18.91 736.57 7.65 726.11 --- --- 13.10 734.73 10.97 724.26 --- --- --- --- --- --- --- --- --- --- --- --- 01 /09/06 23.20 789.97 6.10 748.75 18.25 737.23 5.52 728.24 0.10 734.13 11.89 735.94 9.53 725.70 --- --- --- --- --- --- --- --- --- --- --- --- 07/12/06 19.80 793.37 6.05 748.80 18.35 737.13 5.91 727.85 0.10 734.13 12.44 735.39 10.86 724.37 --- --- 32.70 730.57 --- --- --- --- --- --- --- --- 01/16/07 19.26 793.91 6.41 748.44 16.37 739.11 5.35 728.41 0.10 734.13 11.55 736.28 9.01 726.22 30.85 730.35 31.29 731.98 2.40 760.20 --- --- --- --- --- --- 07/02/07 19.32 793.85 9.00 745.85 19.02 736.46 7.93 725.83 0.10 734.13 13.41 734.42 11.10 724.13 30.90 730.30 31.60 731.67 5.74 756.86 --- --- --- --- --- --- 01 /29/08 22.68 790.49 7.01 747.84 18.76 736.72 5.88 727.88 0.10 734.13 12.04 735.79 10.10 725.13 32.95 728.25 33.20 730.07 4.57 758.03 --- --- --- --- --- --- 07/17/08 20.51 792.66 10.35 744.50 19.51 735.97 8.91 724.85 0.13 734.10 13.38 734.45 11.02 724.21 32.36 728.84 33.17 730.10 6.58 756.02 --- --- --- --- --- --- 01 /15/09 20.09 793.08 6.49 748.36 17.31 738.17 5.16 728.6 0.00 734.23 11.54 736.29 7.88 727.35 31.56 729.64 31.94 731.33 2.02 760.58 --- --- --- --- --- --- 07/16/09 18.96 794.21 8.12 746.73 18.53 736.95 7.55 726.21 0.00 734.23 12.80 735.03 10.08 725.15 31.01 730.19 30.78 732.49 3.55 759.05 --- --- --- --- --- --- 01/04/10 18.06 795.11 6.43 748.42 16.15 739.33 5.25 728.51 0.00 734.23 11.24 736.59 7.78 727.45 30.25 730.95 34.04 729.23 2.58 760.02 --- --- --- --- --- --- 07/01/10 17.43 795.74 8.03 746.82 18.41 737.07 6.90 726.86 0.00 734.23 12.06 735.77 10.02 725.21 30.09 731.11 --- --- 4.40 758.20 --- --- --- --- --- --- 01/13/11 19.57 793.6 7.35 747.50 18.78 736.70 6.41 727.35 0.07 734.16 13.47 734.36 9.79 725.44 32.41 728.79 32.41 730.86 4.21 758.39 --- --- --- --- --- --- 07/21/11 18.25 794.92 7.83 747.02 18.71 736.77 6.95 726.81 0.00 734.23 12.25 735.58 9.21 726.02 31.20 730.00 31.99 731.28 4.39 758.21 --- --- --- --- --- --- 01/16/12 17.97 795.2 6.52 748.33 16.49 738.99 5.23 728.53 0.00 734.23 11.39 736.44 6.76 728.47 30.75 730.45 31.26 732.01 3.19 759.41 --- --- --- --- --- --- 07/09/12 18.02 795.15 8.62 746.23 18.89 736.59 7.60 726.16 0.00 734.23 13.00 734.83 9.25 725.98 30.58 730.62 31.46 731.81 5.36 757.24 --- --- --- --- --- --- 01/14/13 19.72 793.45 7.29 747.56 18.16 737.32 6.06 727.70 0.00 734.23 12.45 735.38 9.01 726.22 31.54 729.66 32.26 731.01 4.50 758.10 --- --- --- --- --- --- 07/09/13 17.16 796.01 7.38 747.47 17.99 737.49 6.24 727.52 0.00 734.23 12.06 735.77 7.24 727.99 29.69 731.51 30.50 732.77 4.30 758.30 --- --- --- --- --- --- 01/30/14 18.94 794.23 7.02 747.83 17.51 737.97 5.62 728.14 0.00 734.23 11.61 736.22 7.26 727.97 30.92 730.28 31.63 731.64 4.16 758.44 --- --- --- --- --- --- 07/08/14 17.69 795.48 8.24 746.61 18.51 736.97 7.68 726.08 0.00 734.23 12.80 735.03 7.96 727.27 30.26 730.94 31.13 732.14 5.53 757.07 --- --- --- --- --- --- 03/03/15 19.16 794.01 6.68 748.17 17.78 737.70 4.88 728.88 0.00 734.23 11.39 736.44 7.45 727.78 31.03 730.17 31.56 731.71 3.73 758.87 --- --- --- --- --- --- 08/12/15 19.13 794.04 8.12 746.73 19.67 735.81 8.43 725.33 -- -- 12.71 735.12 8.51 726.72 31.51 729.69 --- --- 9.54 753.06 --- --- --- --- --- --- 02/17/16 17.08 796.09 6.40 748.45 15.21 740.27 4.84 728.92 0.00 734.23 10.68 737.15 5.19 730.04 28.78 732.42 29.24 734.03 2.79 759.81 --- --- --- --- --- --- 07/14/16 17.66 795.51 7.34 747.51 18.44 737.04 6.87 726.89 -- -- 12.08 735.75 7.11 728.12 29.40 731.80 --- --- 4.98 757.62 --- --- --- --- --- --- 01/11/17 20.41 792.76 7.15 747.70 23.55 731.93 5.86 727.90 0.00 734.23 11.71 736.12 7.15 728.08 30.36 730.84 --- --- 4.09 758.51 5.76 747.52 6.26 724.31 --- --- 07/11/17 18.22 794.95 7.55 747.30 17.98 737.50 6.45 727.31 0.00 734.23 11.45 736.38 6.05 729.18 28.41 732.79 29.53 733.74 4.20 758.40 5.96 747.32 7.37 723.20 --- --- 01/09/18 20.97 792.20 7.40 747.45 18.83 736.65 6.47 727.29 0.00 734.23 13.09 734.74 7.74 727.49 29.39 731.81 30.58 732.69 4.64 757.96 5.92 747.36 7.28 723.29 --- --- 07/26/18 19.20 793.97 8.20 746.65 19.76 735.72 8.63 725.13 0.00 734.23 12.36 735.47 7.10 728.13 29.49 731.71 30.74 732.53 5.71 756.89 6.42 746.86 7.69 722.88 --- --- 01/30/19 16.20 796.97 5.81 749.04 15.42 740.06 4.70 729.06 0.00 734.23 10.08 737.75 5.74 729.49 26.04 735.16 27.24 736.03 2.20 760.40 4.95 748.33 3.98 726.59 --- --- 07/10/19 16.35 796.82 7.18 747.67 17.89 737.59 6.65 727.11 0.00 734.23 11.30 736.53 6.02 729.21 22.30 738.90 28.27 735.00 4.12 758.48 5.77 747.51 7.06 723.51 5.95 784.11 01 /29/20 18.13 795.04 5.36 749.49 15.78 739.70 4.69 729.07 0.10 734.13 10.11 737.72 5.67 729.56 26.74 734.46 28.09 735.18 2.44 760.16 4.80 748.48 3.64 726.93 4.95 785.11 MEAN 18.93 794.24 7.25 747.61 18.03 737.45 6.35 727.41 0.03 734.20 11.94 735.91 8.53 726.70 30.03 731.17 31.11 732.16 4.29 758.31 5.65 747.63 6.18 724.39 5.45 784.61 MAXIMUM 23.20 796.97 10.35 749.49 23.55 740.27 8.91 729.07 0.13 734.23 13.47 741.04 11.10 730.04 32.95 738.90 34.04 736.03 9.54 760.58 6.42 748.48 7.69 726.93 5.95 785.11 MINIMUM 16.20 789.97 5.36 744.50 15.21 731.93 4.69 724.85 0.00 734.10 7.52 734.36 5.19 724.13 22.30 728.25 27.24 729.23 2.02 753.06 4.80 746.86 3.64 722.88 4.95 784.11 Notes: 1. TOC = top of casing 2. ft AMSL = feet above mean sea level 3. Monitoring well MW-1 is the facility background well. 4. --- = no data available ,,> GOLDER 1 of 1 March 2020 TABLE 2 Summary of Estimated Horizontal Flow Velocities Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina 20137881.101 January 2019 Gradient Gradient Gradient Horizontal Effective Hydraulic Calculation Flow Segment Segment Gradient Porosity Conductivity Velocity Segment Direction Length Elevations feet) (ne) (K, cm/sec) (VgW, feet/year) feet(feet)(i, W 746 -----------0------- 0.0402 0.09 1.37E-05 6.33 '2 SW 1446 ------- 0.0346 0.09 1.37E-05 5.44 790 i3 S 754 ------- 750------- 0.0530 0.09 1.37E-05 8.35 Notes: 1. Horizontal velocities based on the modified Darcy equation VgW = Ki/n, 2. The geometric mean of K from individual well aquifer tests was used to calculate the hydraulic conductivity (tests conducted by Golder as part of the Phase 2 investigation not yet submitted). 3. The effective porosity for bedrock was used in velocity calculations. 4. cm/sec = centimeters per second GOLDEN 1of1 March 2020 20137881.101 TABLE 3 Summary of Well Construction Information Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Well & Piezometer Number Date Installed Casing Diameter (inches) Coordinates Well Elevations Total Depth Drilled Screened Interval Lithology of Screened Interval Status Ground Surface TOC Northing Easting Depth (ft bgs) Elevation (ft AMSL) Depth (ft bgs) Elevation (ft AMSL) ft AMSL from to from to MW-1 09/29/03 2 802679.07 1727481.97 809.79 813.17 30.0 779.79 15.0 30.0 794.79 779.79 Bedrock Compliance Well MW-2 09/30/03 2 802512.12 1726072.14 752.30 754.85 16.5 735.80 6.5 16.5 745.80 735.80 PWR/Bedrock Compliance Well MW-3 10/02/03 2 802153.76 1725818.69 752.65 755.48 27.0 725.65 12.0 27.0 740.65 725.65 PWR/Bedrock Compliance Well MW-4S 02/20/02 2 801841.41 1725570.04 731.60 733.76 20.0 711.60 5.0 20.0 726.60 711.60 PWR/Bedrock Compliance Well MW-4D 02/19/02 2 801847.04 1725576.62 731.88 734.23 80.0 651.88 60.0 80.0 671.88 651.88 Bedrock Water Levels Only MW-5 02/19/02 2 801517.31 1726103.70 741.16 743.44 20.0 721.16 5.0 20.0 736.16 721.16 Saprolite/PWR/Bedrock Compliance Well MW-6 12/17/02 2 801625.07 1725754.72 733.53 735.23 15.5 718.03 8.5 15.5 725.03 718.03 PWR/Bedrock Compliance Well MW-7S 07/13/06 2 801358.30 1726660.50 761.20 763.52 45.0 716.20 30.0 45.0 731.20 716.20 PWR Compliance Well MW-7D 07/11/06 2 801341.60 1726657.80 761.24 763.27 70.0 691.24 60.0 70.0 701.24 691.24 Bedrock Water Levels Only MW-8 07/05/06 2 802748.00 1726285.20 760.57 762.60 25.0 735.57 15.0 25.0 745.57 735.57 Bedrock Compliance Well AMW-1 12/05/16 2 802509.49 1726046.32 750.82 753.28 15.0 735.82 5.0 15.0 745.82 735.82 Bedrock Assessment Well AMW-2 12/05/16 2 801580.59 1725717.37 728.19 730.57 15.0 713.19 5.0 15.0 723.19 713.19 Bedrock Assessment Well P-3 02/12/02 2 802083.27 1727807.85 787.62 790.06 25.0 762.62 10.0 25.0 777.62 762.62 Saprolite/PWR Background Piezometer Notes: 1. All elevations are referenced to mean sea level; depths are referenced to ground surface. 2. AMSL = above mean sea level 3. bgs = below ground surface 4. TOC = top of casing 5. PWR = partially weathered rock 6. MW-4S and MW-4D were installed as piezometers P-15S and P-15D, respectively, on February 19-20, 2002. 7. MW-5 was installed as piezometer P-12 on February 19, 2002. 8. MW-6 was installed as piezometer P-18 on December 17, 2002. 9. MW-7S and MW-7D were installed as piezometers P-30S and P-30D, respectively, on July 13 and 11, 2006. 10. MW-8 was installed as piezometer P-23 on July 5, 2006. 10. AMW-1 and AMW-2 were installed as assessment monitoring wells on December 5, 2016. GOLDER ,> 1 of 1 March 2020 TABLE 4 20137881.101 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Antimony ug/L 01/16/07 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND NC 21 IMAC = 1 ug/L ug/L 07/02/07 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND EPA MCL = 6 ug/L ug/L 01/30/08 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 6 ND -- ND 0.96 J ND ND 0.94 J -- -- -- -- ND ug/L 07/16/09 -- -- 6 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 6 ND -- ND 0.107 J ND ND 0.0910 J 0.206 J ND -- -- ND ug/L 07/01/10 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 6 0.307 J -- 0.620 J ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 6 0.257 B -- 1.30 B ND ND ND ND ND ND -- -- 0.461 J ug/L 01/14/13 -- -- 6 ND -- 0.672 J ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 6 0.221 J -- 0.767 J ND ND 0.238 J ND ND ND -- -- ND ug/L 01/30/14 -- -- 6 0.229 J -- 1.66 J ND ND 0.347 J ND ND ND -- -- ND ug/L 07/08/14 -- -- 6 ND -- 1.30 J ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.220 -- 6 ND -- 0.953 J 0.224 J ND ND ND ND ND -- -- ND ug/L 08/12/15 0.220 -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.220 -- 6 0.277 J -- ND ND ND 0.252 J ND ND ND -- -- ND ug/L 07/14/16 0.220 -- 6 ND -- 0.393 J ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.370 -- 6 ND -- 0.854 J ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.370 -- 6 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.250 -- 6 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 1.85 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.740 2 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.740 2 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.740 2 -- ND ND ND ND ND ND ND ND ND ND ND ND Arsenic ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 10 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 10 ug/L ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND J ug/L 01/16/07 -- -- 10 ND -- 2.5 B 2.8 B 2.4 B ND ND ND ND -- -- 2.4 ug/L 07/02/07 -- -- 10 ND -- ND ND ND 5.1 J ND ND ND -- -- ND J ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- 2.1 ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND ND 2.8 J ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 3.56 J -- ND 4.21 J 4.82 J ND 3.76 J -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 07/01/10 -- -- 10 3.96 B -- 6.39 B 5.99 B 6.13 B 6.64 B 3.12 B 3.16 B ND -- -- 3.54 ug/L 01/13/11 -- -- 10 ND -- 4.13 J ND 3.35 J 2.82 J 4.74 J 3.81 J ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- ND ND 3.12 J ND ND ND ND -- -- ND J ug/L 07/09/12 -- -- 10 3.41 B -- ND ND 4.41 B ND ND 3.18 B ND -- -- 3.13 ug/L 01/14/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 10 ND -- ND ND ND 6.93 J ND ND ND -- -- ND ug/L 07/08/14 -- -- 10 ND -- 5.83 J ND ND ND ND ND ND -- -- ND ug/L 03/03/15 5.40 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 6.80 -- 10 ND -- 8.12 J ND ND ND ND ND ND -- -- ND ug/L 02/17/16 6.80 -- 10 ND -- 6.94 J ND ND ND 9.29 J ND ND -- -- ND ug/L 07/14/16 6.80 -- 10 ND -- 9.80 J ND ND 7.81 J ND ND ND -- -- ND ug/L 01/11/17 6.80 -- 10 ND -- 14.1 ND ND ND ND ND ND ND ND ND (Dissolved) ug/L 01/11/17 6.80 -- 10 -- -- 8.1 J -- -- -- -- -- -- -- -- -- ug/L 07/11/17 6.80 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 6.80 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 7.60 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 7.60 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 7.60 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 7.60 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Barium ug/L 10/08/03 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 700 ug/L ug/L 01/23/04 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 2000 ug/L ug/L 07/08/04 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND J ug/L 07/12/06 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND J ug/L 01/16/07 -- -- 100 141 -- 187 25.5 J 73.9 J 86.7 J 53.5 J 210 46.4 J -- -- 0.90 J ug/L 07/02/07 -- -- 100 137 -- 338 29.4 J 33.4 J 87.8 J 57.5 J 230 42.4 J -- -- 1.2 ug/L 01/30/08 -- -- 100 100 -- 190 46.9 J 66.6 J 110 82.2 J 143 66.8 J -- -- 0.30 ug/L 07/17/08 -- -- 100 102 -- 279 36.5 J 52.5 J 92.8 J 65.1 J 108 49.2 J -- -- ND ug/L 01/14/09 -- -- 100 101 -- 152 38.3 J 79.7 J 68.0 J 93.9 J -- -- -- -- ND J ug/L 07/16/09 -- -- 100 132 -- 252 39.1 J 65.9 J 71.6 J 99.0 J -- -- -- -- ND ug/L 01/04/10 -- -- 100 107 -- 188 37.4 J 117 51.7 J 111 98.5 J 37.3 J -- -- 0.552 ug/L 07/01/10 -- -- 100 117 -- 156 42.2 J 45.4 J 72.6 J 153 107 23.3 J -- -- ND ug/L 01/13/11 -- -- 100 100 -- 193 35.0 J 69.4 J 70.8 J 117 98.5 J 26.6 J -- -- ND ug/L 07/21/11 -- -- 100 125 -- 273 33.7 J 87.7 J 75.1 J 140 115 30.1 J -- -- ND ug/L 01/16/12 -- -- 100 108 -- 197 34.9 J 114 58.2 J 161 118 36.3 J -- -- ND J ug/L 07/09/12 -- -- 100 115 -- 338 31.5 J 48.3 J 67.5 J 223 122 40.0 J -- -- ND J ug/L 01/14/13 -- -- 100 125 -- 333 47.2 J 74.0 J 66.4 J 162 142 50.2 J -- -- 1.46 J ug/L 07/09/13 -- -- 100 88.7 J -- 308 36.9 J 46.2 J 60.3 J 126 137 61.9 J -- -- 1.37 J ug/L 01/30/14 -- -- 100 78.8 J -- 297 44.6 J 88.7 J 59.5 J 146 154 79.7 J -- -- 1.08 J ug/L 07/08/14 -- -- 100 73.8 J -- 542 40.3 J 53.5 J 57.3 J 174 156 69.6 J -- -- 1.13 J ug/L 03/03/15 1.00 -- 100 62.3 J -- 427 42.5 J 51.4 J 49.5 J 192 181 86.0 J -- -- 3.04 ug/L 08/12/15 1.00 -- 100 62.7 J -- 649 35.3 J 74.7 J 61.8 J 203 181 47.6 J -- -- 2.33 ug/L 02/17/16 1.00 -- 100 53.3 J -- 428 33.4 J 96.6 J 46.6 J 269 194 57.0 J -- -- ND ug/L 07/14/16 1.00 -- 100 51.1 J -- 488 43.0 J 67.1 J 59.1 J 319 192 62.8 J -- -- 1.51 J ug/L 01/11/17 1.00 -- 100 53.0 J -- 726 42.7 J 76.7 J 75.4 J 378 215 77.4 J 113 160 ND (Dissolved) ug/L 01/11/17 1.00 -- 100 -- -- 337 -- -- -- -- -- -- -- -- -- ug/L 07/11/17 1.00 -- 100 49.8 J -- 528 38.8 63.6 53.2 414 218 94.6 80.9 177 1.39 J ug/L 01/09/18 1.00 -- 100 46.8 J -- 926 46.3 J 87.3 J 88.0 J 615 263 128 143 327 ND (Dissolved) ug/L 01/09/18 1.00 -- 100 -- -- 377 -- -- -- -- -- -- -- -- ug/L 07/26/18 1.10 10 -- 36.2 -- 859 32.9 71.4 61.4 551 223 125 179 312 ND ug/L 01/30/19 1.10 10 -- 37.6 -- 309 32.8 80.2 39.5 530 240 143 213 170 ND ug/L 07/10/19 1.10 10 -- 37.7 53.0 1110 55.5 124 59.1 763 252 151 157 329 2.91 J ug/L 01/29/20 1.10 10 -- 41.3 50.8 431 36.8 88.8 51.8 724 303 156 332 147 ND Beryllium ug/L 01/16/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND NC 2L IMAC= 4 ug/L ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND EPA MCL = 4 ug/L ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- 0.135 J ND ND 0.0900 J ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- 0.674 J ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND 0.176 J ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.100 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.100 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.100 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.100 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.100 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.130 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.130 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.160 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.160 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.160 1 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.160 1 -- ND ND ND ND ND ND ND ND ND ND ND ND Cadmium ug/L 10/08/03 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 2 ug/L ug/L 01/23/04 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 5 ug/L ug/L 07/08/04 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 0.350 B -- 0.390 B 0.310 B 0.200 B 0.111 B 0.293 B -- -- -- -- 1.19 ug/L 01/04/10 -- -- 1 0.299 J -- 0.770 J 0.269 J ND ND 0.296 J 0.153 J 0.344 J -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.360 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.360 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.360 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.360 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.360 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.360 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.360 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.360 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.360 1 -- ND -- ND ND ND 0.483 J ND ND ND ND ND ND ug/L 07/10/19 0.360 1 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.360 1 -- ND ND ND ND ND ND ND ND ND ND ND ND ,,> GOLDER 1 of 7 March 2020 TABLE 4 20137881.101 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Chromium ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 10 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 100 ug/L ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01 09 06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 7 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 2.2 J -- ND ND ND ND ND 17.0 ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND ND ND 19.0 ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND 5.3 J 4.9 J ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 0.772 J -- 4.78 J 1.01 J 0.793 J 0.722 J 0.736 J -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 4.22 J 2.58 J ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 10 6.26 B -- ND 6.00 B ND ND ND 1.29 B ND -- -- 1.80 J ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND 1.26 J ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- 3.62 J ND 14.3 (1.06 J) ND 1.95 J 2.46 J ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 3.77 J ND 1.70 J ND 4.53 J ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- 6.97 J ND ND ND 5.41 J ND ND -- -- ND J ug/L 01/14/13 -- -- 10 ND -- 3.73 B 1.19 B 1.03 B 1.08 B 2.77 B 1.57 B 1.32 B -- -- 1.40 ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND 1.78 J ND ND -- -- ND ug/L 01/30/14 -- -- 10 ND -- ND ND ND ND 2.42 J ND 2.08 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- 3.68 J 2.83 J 10.9 (ND) ND 3.76 J 1.44 J ND -- -- ND ug/L 03/03/15 1.40 -- 10 ND -- 6.93 B ND 1.54 B ND 5.74 B 1.43 B 2.11 B -- -- 1.66 ug/L 08/12/15 1.40 -- 10 ND -- 1.66 J ND ND ND 3.94 J ND ND -- -- ND ug/L 02/17/16 1.40 -- 10 ND -- 5.24 J 6.61 J 1.40 J ND 4.34 J ND ND -- -- ND ug/L 07/14/16 1.40 -- 10 ND -- ND ND ND ND 1.70 J ND ND -- -- ND ug/L 01/11/17 1.40 -- 10 ND -- ND ND ND ND 2.10 J ND ND ND ND ND ug/L 07/11/17 1.40 -- 10 ND -- 1.53 J ND ND ND 4.01 J ND ND ND 1.94 J ND ug/L 01/09/18 1.40 -- 10 ND -- ND ND 3.61 J ND 6.11 J 1.89 J 3.33 J ND 4.12 J ND ug/L 07/26/18 1.40 10 -- ND -- 4.63 J ND ND ND 5.60 J ND 3.35 J ND 3.72 J ND ug/L 01/30/19 1.40 10 -- ND -- 1.94 J 6.90 J ND ND 5.04 J 1.51 J 3.14 J 1.47 J 1.73 J ND ug/L 07/10/19 1.40 10 -- ND 2.26 J 2.96 J 1.61 J ND ND 5.03 J 1.61 J ND ND 2.77 J ND ug/L 01/29/20 1.40 10 -- ND ND 2.11 J 2.11 J ND ND 5.79 J ND 2.57 J 1.80 J 1.90 J ND Cobalt ug/L 01/16/07 -- -- 10 ND -- 14.6 ND ND 3.0 J 5.9 J 3.9 J ND -- -- ND NC 2L IMAC = 1 ug/L ug/L 07/02/07 -- -- 10 ND -- 27.4 ND ND 4.7 J ND 6.0 J ND -- -- ND No EPA MCL ug/L 01/30/08 -- -- 10 ND -- 11.6 ND ND 5.6 J ND ND ND -- -- ND ug/L 07/17/08 -- -- 10 ND -- 27.6 ND ND 1.4 J ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- 9.4 J ND 1.2 J 4.1 J 13.0 -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- 26.5 ND 1.65 J 3.30 J 5.05 J -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 17.8 ND ND 3.90 J 9.94 J ND ND -- -- ND ug/L 07/01/10 -- -- 10 ND -- 14.4 ND ND 3.65 J 24.0 ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- 15.7 ND ND 5.50 J 11.0 ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- 19.7 ND 1.27 J 5.87 J 17.0 ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 14.3 ND ND 3.61 J 24.8 ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- 18.4 ND 1.43 J 6.03 J 24.8 ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- 13.5 ND 1.74 J 3.55 J 18.8 ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- 13.5 ND 1.26 J 2.54 J 9.81 J ND 3.33 J -- -- ND ug/L 01/30/14 -- -- 10 ND -- 13.0 ND ND 2.39 J 14.8 ND 4.60 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- 23.4 ND 1.83 J 1.87 J 21.0 ND 4.34 J -- -- ND ug/L 03/03/15 1.10 -- 10 ND -- 15.2 ND ND 2.20 J 25.3 ND 4.31 J -- -- ND ug/L 08/12/15 1.10 -- 10 1.18 J -- 19.4 ND 3.09 J 2.34 J 20.8 ND 3.55 J -- -- ND ug/L 02/17/16 1.10 -- 10 1.14 J -- 14.9 ND 1.59 J 1.70 J 14.3 ND 2.83 J -- -- ND J ug/L 07/14/16 1.10 -- 10 ND -- 15.6 ND ND ND 17.1 ND 4.28 J -- -- ND ug/L 01/11/17 1.10 -- 10 ND -- 17.9 ND ND 3.89 J 14.7 ND 4.39 J 7.41 J 7.90 J ND ug/L 07/11/17 1.10 -- 10 ND -- 10.7 ND ND ND 10.4 ND 6.25 J 5.03 J 11.1 ND (Dissolved) ug/L 07/11/17 1.10 -- 10 -- -- -- -- -- -- -- -- -- -- 10.4 -- ug/L 01/09/18 1.10 -- 10 ND -- 18.8 J ND 3.92 J 2.58 J 15.9 ND 8.32 J 9.14 J 17.1 ND ug/L 07/26/18 1.40 10 -- ND -- 12.8 ND 3.12 J ND 12.0 ND 12.0 12.3 19.3 ND ug/L 01/30/19 1.40 10 -- ND -- 6.47 J ND ND ND 15.8 ND 7.87 J 8.79 J 9.23 J ND ug/L 07/10/19 1.40 10 -- ND ND 13.9 ND ND ND 15.3 ND 8.19 J 7.80 J 15.0 ND ug/L 01/29/20 1.40 10 -- ND ND 6.74 J ND ND 2.20 J 12.6 ND 11.7 12.3 8.21 J ND Copper ug/L 01/16/07 -- -- 10 14.5 -- ND ND 4.60 J ND ND 12.3 ND -- -- ND NC 2L = 1000 ug/L ug/L 07/02/07 -- -- 10 8.8 J -- ND ND ND ND ND 16.3 3.4 J -- -- ND EPA MCL = 1300 ug/L# ug/L 01/30/08 -- -- 10 3.00 J -- ND ND 1.90 J ND ND 2.70 J 5.30 J -- -- ND J ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- 6.42 ug/L 01/04/10 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- ND ND 2.72 B ND ND ND ND -- -- 1.65 ug/L 01/16/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 01/14/13 -- -- 10 ND -- ND 1.67 J ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 1.63 J -- ND ND 1.93 J ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 10 ND -- ND ND ND ND ND ND 2.73 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 1.60 -- 10 4.20 J -- ND ND 2.18 J ND ND ND ND -- -- ND ug/L 08/12/15 1.60 -- 10 ND -- ND ND ND ND 6.76 J ND 20.3 -- -- ND ug/L 02/17/16 1.60 -- 10 ND -- ND ND ND ND ND ND 3.28 B -- -- 3.66 ug/L 07/14/16 1.60 -- 10 ND -- ND ND ND ND ND ND 1.99 B -- -- 3.50 J ug/L 01/11/17 1.60 -- 10 4.48 B -- 2.78 B 3.45 B 3.26 B 1.97 B 2.25 B 3.25 B 6.10 B 3.40 B 3.28 B 6.33 J ug/L 07/11/17 1.60 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 1.60 -- 10 ND -- ND ND 3.97 J ND ND ND ND ND ND ND ug/L 07/26/18 1.60 10 -- ND -- ND ND ND ND ND ND ND ND ND 2.02 J ug/L 01/30/19 1.60 10 -- ND -- ND ND ND ND ND ND 2.19 J ND ND ND ug/L 07/10/19 1.60 10 -- 2.47 B 1.92 B 2.12 B ND 2.38 B ND ND ND 2.60 B 2.22 B ND 3.52 J ug/L 01/29/20 1.60 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Lead ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 15 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 15 ug/L# ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 ND -- ND ND ND ND 3.1 J 4.5 J ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- 3.10 J ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 4.04 B 1.46 B ND 2.76 B 2.08 B ND ND -- -- 1.24 ug/L 07/01/10 -- -- 10 ND -- 2.61 J ND ND 2.84 J ND ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- 4.02 J ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- 3.08 J ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 4.54 J ND 2.45 J 6.10 J ND ND 1.90 J -- -- ND ug/L 07/09/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- 4.05 J ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 10 ND -- 3.42 J ND ND 4.35 J ND ND ND -- -- ND ug/L 07/08/14 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 2.10 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 3.10 -- 10 ND -- 5.51 J ND ND ND 3.62 J ND ND -- -- ND ug/L 02/17/16 3.10 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 3.10 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 3.10 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 3.10 -- 10 ND -- 5.28 J ND ND ND ND ND ND ND ND ND ug/L 01/09/18 3.10 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 3.10 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 3.10 10 -- ND -- ND ND ND ND ND ND 6.37 J ND ND ND ug/L 07/10/19 3.10 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 3.10 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Mercury ug/L 10/08/03 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 1 ug/L ug/L 01/23/04 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/08/04 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 07/02/07 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 01/30/08 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 0.2 ND -- ND ND ND ND ND -- -- -- -- -- ug/L 07/16/09 -- -- 0.2 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 01/16/12 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 0 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 03/03/15 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.170 -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.170 -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.170 -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.170 -- 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.0990 -- 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.0990 -- 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.150 0.200 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.150 0.200 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.150 0.200 -- ND 0.289 ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.150 0.200 -- ND 0.222 ND ND ND ND ND ND ND ND ND ND ,,> GOLDER 2 of 7 March 2020 TABLE 4 20137881.101 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Nickel ug/L 01/16/07 -- -- 50 3.8 J -- ND ND ND ND ND 17.2 J ND -- -- ND NC 2L = 100 ug/L ug/L 07/02/07 -- -- 50 ND -- 3.0 J ND ND ND ND 19.0 J ND -- -- ND No EPA MCL ug/L 01/30/08 -- -- 50 2.5 J -- 3.6 J 2.4 J 3.7 J 6.5 J ND 6.0 J 3.3 J -- -- ND ug/L 07/17/08 -- -- 50 2.1 J -- ND ND ND 3.8 J ND 2.3 J ND -- -- ND ug/L 01/14/09 -- -- 50 2.4 J -- ND 5.1 J 5.3 J ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 50 0.790 B -- 4.11 B 1.47 B 0.988 B 1.04 B 1.05 B -- -- -- -- 3.80 ug/L 01/04/10 -- -- 50 ND -- 2.59 J ND ND 3.20 J ND ND ND -- -- ND ug/L 07/01/10 -- -- 50 ND -- ND ND ND ND 2.29 J ND ND -- -- ND ug/L 01/13/11 -- -- 50 ND -- ND ND ND ND 5.20 J ND ND -- -- ND ug/L 07/21/11 -- -- 50 ND -- ND ND 2.44 J ND 5.56 J ND ND -- -- ND ug/L 01/16/12 -- -- 50 ND -- ND ND ND ND 2.77 J ND ND -- -- ND ug/L 07/09/12 -- -- 50 ND -- ND ND ND ND 6.24 J ND ND -- -- ND ug/L 01/14/13 -- -- 50 ND -- ND 2.05 J ND 4.29 J 3.86 J ND ND -- -- ND ug/L 07/09/13 -- -- 50 ND -- 2.37 J ND ND ND 4.34 J 2.81 J 3.27 J -- -- ND ug/L 01/30/14 -- -- 50 ND -- ND ND 1.86 J ND 5.05 J ND 5.44 J -- -- ND ug/L 07/08/14 -- -- 50 ND -- 2.85 J 1.86 J 6.10 J ND 4.71 J ND 3.36 J -- -- ND ug/L 03/03/15 1.80 -- 50 ND -- 3.01 J ND ND ND 6.41 J ND 3.19 J -- -- ND ug/L 08/12/15 1.80 -- 50 ND -- 2.73 J ND ND ND 5.84 J ND 3.37 J -- -- ND ug/L 02/17/16 1.80 -- 50 ND -- ND 2.27 J ND ND 3.23 J ND 5.44 J -- -- ND ug/L 07/14/16 2.20 -- 50 ND -- ND ND ND ND 4.27 B 2.20 B 3.63 B -- -- 11.9 ug/L 01/11/17 2.20 -- 50 ND -- ND ND ND ND 4.40 J 3.14 J 4.87 J ND 2.57 J ND ug/L 07/11/17 2.20 -- 50 ND -- ND ND ND ND ND ND ND ND 2.60 J ND ug/L 01/09/18 2.20 -- 50 ND -- ND 2.41 J 5.17 J ND 4.45 J 2.42 J 2.52 J ND 3.86 J ND ug/L 07/26/18 2.20 10 -- 2.41 J -- 4.88 J 2.42 J ND ND 5.29 J 3.06 J 7.98 J 2.62 J 5.35 J ND ug/L 01/30/19 2.20 10 -- 2.43 J -- ND 2.41 J ND ND 5.79 J 2.42 J 7.83 J 2.41 J 2.49 J ND ug/L 07/10/19 2.20 10 -- ND 2.35 J 4.93 J ND ND ND 7.14 J 3.49 J 6.67 J ND 4.45 J ND ug/L 01/29/20 2.20 10 -- ND ND 3.71 1 2.56 J ND ND 7.23 1 4.18 1 8.97 J 3.39 1 2.90 J ND Selenium ug/L 10/08/03 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 20 ug/L ug/L 01/23/04 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 50 ug/L ug/L 07/08/04 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 0 09 06 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07 12 06 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND 2.0 J ND ND -- -- ND ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND 4.0 J ND ND 3.1 J -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 1.59 J ND ND ND 2.05 J ND ND -- -- ND ug/L 07/01/10 -- -- 10 ND -- 2.72 J ND ND ND 3.59 J ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.91 -- 10 ND -- 1.55 J ND ND ND ND ND ND -- -- ND ug/L 08/12/15 5.00 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 5.00 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 6.20 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 6.20 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 6.20 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 6.20 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 6.20 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 6.20 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 6.20 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 6.20 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Silver ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 20 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 100 ug/L ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01 09 06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07 12 06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND 2.5 J ND ND 2.0 J -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- 3.75 J 0.990 J ND 1.70 J ND -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 1.92 J ND ND 1.09 J ND ND ND -- -- ND ug/L 07/01/10 -- -- 10 ND -- 2.66 J ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- 3.19 J ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 3.59 J -- 2.28 J ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 2.37 J ND 3.30 J ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- 2.38 J ND ND ND 2.88 J ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- 3.43 J 3.86 J ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 2.69 J -- 4.48 J ND 3.36 J 1.90 J 2.31 J 4.86 J 6.81 J -- -- ND ug/L 01/30/14 -- -- 10 ND -- 2.95 J ND ND ND ND ND 2.21 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- 5.41 J ND ND ND ND ND 2.58 J -- -- ND ug/L 03/03/15 1.90 -- 10 ND -- 7.35 J ND ND ND ND ND ND -- -- ND ug/L 08/12/15 1.90 -- 10 2.57 B -- 9.84 B ND 4.90 B 5.27 B 10.6 B 2.14 B 4.53 B -- -- 2.59 ug/L 02/17/16 1.90 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 1.90 -- 10 ND -- 4.41 J ND ND ND ND ND ND -- -- ND ug/L 01/11/17 1.90 -- 10 ND -- 6.32 J ND ND ND ND ND 2.06 J ND ND ND ug/L 07/11/17 1.90 -- 10 5.30 J -- ND ND ND ND 3.78 J ND 2.59 J 3.30 J 2.57 J ND ug/L 01/09/18 1.90 -- 10 3.53 J -- 15.5 1 2.41 J 4.04 J ND 5.69 J 4.13 J 9.94 1 2.72 J 3.35 J ND ug/L 07/26/18 1.90 10 -- ND -- ND ND ND 14.3 ND ND ND ND ND ND ug/L 01/30/19 1.90 10 -- ND -- ND 4.37 J ND ND ND ND ND ND ND ND ug/L 07/10/19 1.90 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 1.90 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Thallium ug/L 01/16/07 -- -- 5.5 ND -- 0.048 J ND ND ND ND ND ND -- -- ND NC 2L IMAC = 0.2 ug/L ug/L 07/02/07 -- -- 5.5 0.043 J -- 0.097 J ND ND ND ND ND ND -- -- ND EPA MCL = 2 ug/L ug/L 01/30/08 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 5.5 ND -- 0.046 J ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 5.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 5.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 5.5 ND -- ND ND ND 0.489 J ND ND ND -- -- ND ug/L 07/08/14 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.110 -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.110 -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.110 -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.110 -- 5.5 0.575 J -- 0.211 J 0.502 J 0.482 J 0.414 J 0.169 J 0.303 J 0.345 J -- -- ND ug/L 01/11/17 0.110 -- 5.5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.110 -- 5.5 0.131 J -- ND 0.118 J ND ND ND ND ND 0.143 J 0.148 J ND ug/L 01/09/18 0.050 -- 5.5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.550 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.220 2 -- 0.410 J -- 0.223 J 0.399 J 0.354 J ND ND 0.263 J ND 0.293 J 0.263 J ND ug/L 07/10/19 0.220 2 -- 0.315 J ND ND ND ND ND ND ND ND ND 0.401 J ND ug/L 01/29/20 0.220 2 -- ND ND ND ND ND ND ND ND ND ND ND ND Vanadium ug/L 01/16/07 -- -- 25 7.5 J -- ND ND 4.4 J ND ND 34.4 ND -- -- ND NC 2L IMAC = 0.3 ug/L ug/L 07/02/07 -- -- 25 5.9 J -- ND 1.9 J 2.3 J ND ND 44.3 2.6 J -- -- ND No EPA MCL ug/L 01/30/08 -- -- 25 3.7 J -- ND ND 3.6 J ND ND 13.3 J ND -- -- ND ug/L 07/17/08 -- -- 25 2.5 J -- ND ND 2.9 J ND ND 11.4 J ND -- -- ND ug/L 01/14/09 -- -- 25 1.7 J -- ND ND 6.8 J ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 25 2.16 J -- ND 1.08 J 3.75 J 1.59 J 0.965 J -- -- -- -- ND ug/L 01/04/10 -- -- 25 1.91 J -- ND 0.544 J 3.00 J ND ND 10.1 J 2.43 J -- -- ND ug/L 07/01/10 -- -- 25 ND -- ND ND ND ND ND 10.5 J ND -- -- ND ug/L 01/13/11 -- -- 25 1.80 J -- ND ND 2.32 J ND ND 10.2 J ND -- -- ND ug/L 07/21/11 -- -- 25 ND -- ND ND 24.6 J ND ND 9.72 J ND -- -- ND ug/L 01/16/12 -- -- 25 1.73 J -- ND ND 42.6 ND ND 9.90 J ND -- -- ND ug/L 07/09/12 -- -- 25 1.55 J -- ND ND 2.05 J ND ND 9.46 J ND -- -- ND ug/L 01/14/13 -- -- 25 1.81 J -- ND ND ND ND ND 10.6 J ND -- -- ND ug/L 07/09/13 -- -- 25 ND -- ND ND 2.32 J ND ND 9.62 J ND -- -- ND ug/L 01/30/14 -- -- 25 ND -- ND ND 6.97 J ND ND 9.31 J ND -- -- ND ug/L 07/08/14 -- -- 25 ND -- ND ND ND ND ND 9.21 J ND -- -- ND ug/L 03/03/15 1.40 -- 25 ND -- ND ND 6.10 J ND ND 9.36 J ND -- -- ND ug/L 08/12/15 1.40 -- 25 ND -- ND ND 4.78 J ND 1.59 J 9.20 J ND -- -- ND ug/L 02/17/16 1.40 -- 25 ND -- ND ND 11.2 J ND ND 9.15 J ND -- -- ND ug/L 07/14/16 1.40 -- 25 ND -- ND ND 1.98 J ND 1.46 J 8.95 J ND -- -- ND ug/L 01/11/17 1.40 -- 25 ND -- ND ND 7.20 J ND ND 9.24 J ND ND ND ND ug/L 07/11/17 1.40 -- 25 ND -- 2.79 J ND 1.69 J 1.89 J 2.10 J 9.77 J ND ND ND ND ug/L 01/09/18 1.40 -- 25 ND -- ND ND 22.1 J ND ND 10.3 J ND ND ND ND ug/L 07/26/18 1.40 10 -- ND -- ND ND 1.74 J ND 1.65 J 8.76 J ND ND ND ND ug/L 01/30/19 1.40 10 -- 1.50 J -- ND ND 1.93 J ND ND 9.20 J ND ND ND ND ug/L 07/10/19 1.40 10 -- ND ND ND ND ND ND 2.04 J 9.57 J ND ND ND ND ug/L 01/29/20 1.40 10 -- ND ND ND ND ND ND ND 10.1 ND ND ND ND ,,> GOLDER 3 of 7 March 2020 TABLE 4 20137881.101 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina SWS Upgradient Downgradient Reporting Sample Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Zinc ug/L 01/16/07 -- -- 10 25.7 B -- 4.0 B 6.5 B 23.4 B 9.1 B 11.0 B 48.1 B 7.4 B -- -- 10.0 NC 2L = 1000 ug/L ug/L 07/02/07 -- -- 10 ND -- 28.0 ND ND ND 10.1 41.1 3.9 J -- -- ND EPA MCL = 5000 ug/L* ug/L 01/30/08 -- -- 10 2.3 B -- 1.8 B 2.9 B 3.8 B 3.0 B 4.9 B 9.1 J 4.4 B -- -- 1.6 ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND 4.2 J ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- 3.8 J ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 6.77 B -- 4.89 B 5.55 B 7.01 B 5.28 B 3.44 B -- -- -- -- 20.5 ug/L 01/04/10 -- -- 10 1.72 B -- 6.20 B 2.24 B 2.35 B 2.57 B 3.88 B ND 2.98 B -- -- 2.25 ug/L 07/01/10 -- -- 10 ND -- ND ND ND 6.66 J 7.04 J 4.90 J ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- ND ND 4.06 J ND 5.52 J ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- ND ND ND ND 5.67 J ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND 4.35 J ND 3.98 J -- -- ND ug/L 01/30/14 -- -- 10 3.97 J -- 4.83 J 4.13 J 5.51 J ND 5.86 J ND 7.30 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- ND 3.86 J ND 9.69 J ND ND 5.50 J -- -- ND ug/L 03/03/15 3.80 -- 10 ND -- ND ND 4.77 J ND ND ND ND -- -- ND ug/L 08/12/15 3.80 -- 10 ND -- 4.12 J ND 8.46 J ND 15.8 ND 9.95 J -- -- ND ug/L 02/17/16 3.80 -- 10 60.0 -- 5.54 J ND 25.8 6.06 J ND ND 4.75 J -- -- ND ug/L 07/14/16 4.40 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 4.40 -- 10 ND -- ND ND ND ND ND ND 6.11 J ND ND ND ug/L 07/11/17 4.40 -- 10 ND -- 5.01 J ND ND ND ND ND ND ND ND ND ug/L 01/09/18 4.40 -- 10 ND -- ND ND 4.68 J ND ND ND 6.05 J ND ND ND ug/L 07/26/18 4.40 10 -- 4.43 J -- 4.90 J ND 7.68 J 4.54 J ND ND ND ND ND ND ug/L 01/30/19 4.40 10 -- ND -- ND ND ND 8.31 J ND ND ND ND ND ND ug/L 07/10/19 4.40 10 -- 5.55 J ND 6.70 J ND 4.62 J ND ND ND ND ND ND ND ug/L 01/29/20 4.40 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Iron ug/L 01/16/07 -- -- -- 2530 -- 3410 80 J 1020 9860 700 16400 680 -- -- -- NC 2L = 300 ug/L ug/L 07/02/07 -- -- 300 1510 -- 18600 46 J 314 4960 592 19500 497 -- -- -- EPA MCL = 300 ug/L* ug/L 01/30/08 -- -- 300 533 -- 327 31 J 2220 21100 106 J 3320 1110 -- -- ND ug/L 07/17/08 -- -- 300 161 J -- 10300 ND 1730 8620 ND 448 69 J -- -- ND ug/L 01/14/09 -- -- 300 65 J -- 2740 26 J 3300 28800 1110 -- -- -- -- ND ug/L 07/16/09 -- -- 300 84.2 J -- 18000 ND 2490 7570 642 -- -- -- -- ND ug/L 01/04/10 -- -- 300 155 J -- 10700 90.1 J 1980 33600 1750 58.6 J 228 J -- -- ND ug/L 07/01/10 -- -- 300 42.7 J -- 21100 63.2 J 1050 42000 4290 132 J ND -- -- ND ug/L 01/13/11 -- -- 300 30.4 J -- 29100 36.4 J 803 4120 1170 269 J 90.9 J -- -- ND ug/L 07/21/11 -- -- 300 44.5 J -- 35900 47.1 J 21100 37800 1900 85.7 J 41.0 J -- -- -- ug/L 01/16/12 -- -- 300 133 J -- 15700 37.9 J 11300 45400 5270 90.1 J 27.6 J -- -- ND ug/L 07/09/12 -- -- 300 32.7 J -- 44700 28.2 J 1800 17000 7570 43.8 J 49.2 J -- -- ND ug/L 01/14/13 -- -- 300 50.4 J -- 31300 72.9 J 1440 5230 3040 143 J 148 J -- -- ND ug/L 07/09/13 -- -- 300 76.6 J -- 27200 39.0 J 1690 41300 2080 79.4 J 325 -- -- ND ug/L 01/30/14 -- -- 300 87.8 J -- 24500 208 J 5330 56300 2110 49.6 J 2570 -- -- ND ug/L 07/08/14 -- -- 300 ND -- 56100 65.3 J 1400 35300 4260 61.3 J 3900 -- -- ND ug/L 03/03/15 22.0 -- 300 61.4 B -- 30800 38.2 B 1860 91700 3660 ND 6600 -- -- 73.8 ug/L 08/12/15 22.0 -- 300 ND -- 59100 47.7 J 1630 46200 9550 28.6 J 876 -- -- ND ug/L 02/17/16 22.0 -- 300 51.8 J -- 21200 100 J 2440 39400 5840 38.4 J 1020 -- -- ND ug/L 07/14/16 22.0 -- 300 ND -- 27800 48.8 B 907 35500 6010 38.4 B 4620 -- -- 23.3 J ug/L 01/11/17 22.0 -- 300 61.7 J -- 46000 67.1 J 4860 57000 4240 ND 2090 1590 525 ND ug/L 07/11/17 22.0 -- 300 29.7 J -- 33200 62.6 J 1160 44100 7870 ND 3940 1290 2590 ND (Dissolved) ug/L 07/11/17 22.0 -- 300 -- -- -- -- -- -- -- -- -- -- 26.7 J -- ug/L 01/09/18 22.0 -- 300 54.9 J -- 51600 91.9 J 5770 15500 6680 33.7 J 781 1890 3950 ND ug/L 07/26/18 22.0 50 -- 25.3 J -- 45400 76.5 549 29500 7800 ND 1000 4750 5410 ND ug/L 01/30/19 22.0 50 -- 23.3 J -- 14100 41.7 J 643 35200 6900 24.1 J 2010 5730 3140 ND ug/L 07/10/19 22.0 50 -- 26.7 J 483 56100 66.1 835 24100 12600 55.8 3770 3440 5070 ND ug/L 01/29/20 22.0 50 -- ND ND 13500 432 538 45700 7690 24.2 J 1010 10500 2620 ND Manganese ug/L 01/16/07 -- -- -- 50.6 -- 6160 4.7 J 39.1 2620 361 205 204 -- -- NC 2L = 50 ug/L ug/L 07/02/07 -- -- 50 30.6 J -- 9540 4.2 J 29.5 J 1040 21.3 J 229 244 -- -- -- EPA MCL = 50 ug/L* ug/L 01/30/08 -- -- 50 16.1 J -- 7760 8.0 J 27.3 J 4340 12.6 J 64.8 208 -- -- ND ug/L 07/17/08 -- -- 50 26.7 J -- 25900 14.1 J 35.8 J 1080 10.5 J 11.1 J 94.2 -- -- ND ug/L 01/14/09 -- -- 50 3.5 J -- 10400 10.7 J 24.4 J 3450 718 -- -- -- -- ND ug/L 07/16/09 -- -- 50 15.7 J -- 25200 16.8 J 76.9 2480 340 -- -- -- -- ND ug/L 01/04/10 -- -- 50 5.12 J -- 13200 21.9 J 36.3 J 3200 707 2.50 J 77.3 -- -- ND ug/L 07/01/10 -- -- 50 8.43 B -- 15300 21.0 J 42.3 J 3420 1850 6.80 B 85.1 -- -- 2.75 ug/L 01/13/11 -- -- 50 6.90 J -- 20100 20.9 J 17.7 J 3290 2490 9.13 J 73.4 -- -- ND ug/L 07/21/11 -- -- 50 6.10 J -- 19600 19.0 J 54.5 3020 2470 3.62 J 551 -- -- -- ug/L 01/16/12 -- -- 50 5.41 J -- 8520 22.4 J 37.6 J 3280 2440 ND 73.1 -- -- ND ug/L 07/09/12 -- -- 50 3.82 J -- 17900 12.1 J 54.2 1890 3530 1.79 J 1160 -- -- ND ug/L 01/14/13 -- -- 50 4.14 B -- 14300 24.2 J 92.2 2280 2720 4.32 B 183 -- -- 1.28 ug/L 07/09/13 -- -- 50 18.1 J -- 19000 16.9 J 62.6 2290 1790 6.22 J 1840 -- -- ND ug/L 01/30/14 -- -- 50 7.75 J -- 16800 36.8 J 37.8 J 3120 2580 2.73 J 2090 -- -- ND ug/L 07/08/14 -- -- 50 5.04 B -- 24900 16.4 J 59.0 2060 2640 8.60 B 2010 -- -- 1.97 ug/L 03/03/15 1.10 -- 50 6.00 J -- 17300 16.1 J 20.4 J 2480 3120 ND 2480 -- -- ND ug/L 08/12/15 1.10 -- 50 4.21 B -- 20800 14.3 J 76.4 2410 3030 2.08 B 1670 -- -- 1.18 ug/L 02/17/16 1.10 -- 50 7.36 J -- 16800 15.8 J 53.1 2240 3530 2.26 B 2040 -- -- 1.19 ug/L 07/14/16 1.10 -- 50 5.24 B -- 18100 12.9 J 51.5 1970 3490 4.93 B 2650 -- -- 1.82 J ug/L 01/11/17 1.10 -- 50 5.30 J -- 24800 17.6 J 34.6 J 2860 4090 1.44 J 4820 2980 1150 ND ug/L 07/11/17 1.10 -- 50 7.16 J -- 18200 14.6 J 44.6 J 1940 3760 1.58 J 8540 2930 1670 ND (Dissolved) ug/L 07/11/17 1.10 -- 50 -- -- -- -- -- -- -- -- 7840 2960 1570 ND ug/L 01/09/18 1.10 -- 50 6.80 B -- 21400 26.0 J 97.6 (92.2) 1800 5450 3.06 B 19300 (16600) 3620 3340 2.57 J (Dissolved) ug/L 01/09/18 1.10 -- 50 -- -- -- -- -- -- -- -- 16800 -- -- ND Verification Event ug/L 03/16/18 1.10 -- 50 -- -- -- -- -- -- -- -- 19600 -- -- ND (Dissolved) ug/L 03/16/18 1.10 -- 50 -- -- -- -- -- -- -- -- 20200 -- -- ND ug/L 07/26/18 1.50 10 -- 5.21 B -- 15400 13.2 B 74.6 1800 4950 ND 19500 4740 3590 2.80 J ug/L 01/30/19 1.50 10 -- 5.24 J -- 9540 15.1 40.2 1540 4840 ND 20900 5980 1910 ND ug/L 07/10/19 1.50 10 -- 7.49 B 28.3 19000 15.6 B 148 1170 6400 3.07 B 21400 5010 3430 3.63 J ug/L 01/29/20 1.50 10 -- 5.44 J 25.1 11700 25.5 37.5 2000 6620 2.17 J 26200 7910 1850 ND Acetone ug L 01 /09/06 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 6000 ug/L ug/L 07/12/06 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND No EPA MCL ug/L 01/16/07 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- 1.2 ug/L 01/30/08 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- 7.1 ug/L 07/01/10 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 100 ND -- ND ND ND ND 5.6 J ND ND -- -- ND ug/L 01/14/13 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 100 ND -- 9.8 J ND ND 1.3 J 2.1 J ND 1.9 J -- -- ND ug/L 03/03/15 1.2 -- 100 ND -- 4.4 J ND ND 2.5 J ND ND ND -- -- ND ug/L 08/12/15 1.2 -- 100 ND -- ND ND ND ND 11 J ND ND -- -- ND ug/L 02/17/16 1.2 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 10 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 10 -- 100 ND -- ND ND ND ND ND ND ND ND ND 11 J ug/L 07/11/17 10 -- 100 ND -- ND ND ND ND 16 J ND ND ND ND ND ug/L 01/09/18 10 -- 100 ND -- ND ND ND ND ND ND ND ND ND 17 J ug/L 07/26/18 10 20 -- ND -- 11 J ND ND ND 14 J ND ND ND ND ND ug/L 01/30/19 10 20 -- ND -- ND ND ND ND 17 J ND ND ND ND ND ug/L 07/10/19 10 20 -- ND -- 36 ND ND ND 13 J ND ND ND ND ND ug/L 01/29/20 10 20 -- ND -- 11 J ND ND ND 16 J ND ND 12 J ND ND Benzene ug/L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 1 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 5 ug/L ug/L 01/16/07 -- -- 3 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.78 J ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- 0.72 J ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- 0.57 J ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- 1.6 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.15 -- 1 ND -- 0.79 J ND ND ND ND ND 0.49 J -- -- ND ug/L 08/12/15 0.15 -- 1 ND -- 2.0 ND ND ND ND ND ND -- -- ND Verification Event ug/L 09/28/15 0.15 -- 1 -- -- 2.6 -- -- -- -- -- -- -- -- ND ug/L 02/17/16 0.15 -- 1 ND -- 0.98 J ND ND ND 0.63 J ND ND -- -- ND ug/L 07/14/16 0.15 -- 1 ND -- 1.7 ND ND ND 1.0 ND 0.44 J -- -- ND Verification Event ug/L 08/04/16 0.15 -- 1 -- -- 1.0 -- -- -- 1.1 -- -- -- -- ND ug/L 01/11/17 0.15 -- 1 ND -- ND ND ND ND 0.61 J ND ND ND ND ND ug/L 07/11/17 0.15 -- 1 ND -- ND ND ND ND 1.7 ND ND ND ND ND ug/L 01/09/18 0.15 -- 1 ND -- ND ND ND ND 2.1 ND 0.63 J ND 1.4 ND Verification Event ug/L 03/16/18 0.15 -- 1 -- -- -- -- -- -- -- -- -- -- ND ND ug/L 07/26/18 0.15 1 -- ND -- 2.8 ND ND ND 1.7 ND 1.2 ND 1.2 ND Verification Event ug/L 09/10/18 0.15 1 -- -- -- 2.2 -- -- -- -- -- ND -- ND ND ug/L 01/30/19 0.15 1 -- ND -- 1.1 ND ND ND 3.6 ND 0.86 J 0.40 J 0.72 J ND ug/L 07/10/19 0.15 1 -- ND -- 3.3 ND ND ND 4.5 ND ND ND 1.8 ND Verification Event ug/L 10/04/19 0.15 1 -- ND -- -- -- -- -- -- -- -- -- 2.7 ND ug/L 01/29/20 0.15 1 -- ND -- 0.57 J ND ND ND 2.2 ND 0.57 J 0.85 J ND ND ,,> GOLDER 4 of 7 March 2020 TABLE 4 20137881.101 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Parameter Units Date MDL MRL Reporting Blanks Limit 1,2-Dichloroethane ug L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 0.4 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 5 ug/L ug/L 01/16/07 -- -- 3 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.57 J ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND cis- - is oroet ene ug 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 70 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 70 ug/L ug/L 01/16/07 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 5 ND -- 0.87 1 ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 5 ND -- 0.83 1 ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 5 ND -- 0.69 1 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.15 -- 5 ND -- ND ND ND ND ND ND 0.47 1 -- -- ND ug/L 08/12/15 0.15 -- 5 ND -- 0.57 1 ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.15 -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.15 -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.15 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.15 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.15 -- 5 ND -- ND ND ND ND ND ND 0.66 1 ND ND ND ug/L 07/26/18 0.15 1 -- ND -- ND ND ND ND ND ND 1.0 ND ND ND ug/L 01/30/19 0.15 1 -- ND -- ND ND ND ND ND ND 0.81 1 ND ND ND ug/L 07/10/19 0.15 1 -- ND -- ND ND ND ND ND ND 0.72 1 ND ND ND ug/L 01/29/20 0.15 1 -- ND -- ND ND ND ND ND ND ND ND ND ND Ethylbenzene ug L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 600 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 700 ug/L ug/L 01/16/07 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.13 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.13 -- 1 ND -- 0.46 1 ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.13 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.13 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND Methylene chloride ug/L 01/09/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 5 ug/L ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 5 ug/L ug/L 01/16/07 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- 0.51 1 ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.92 1 ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- 1.1 ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- 0.41 1 ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.23 -- 1 ND -- 0.48 1 ND ND ND ND ND 0.84 1 -- -- ND ug/L 08/12/15 0.23 -- 1 ND -- ND ND ND ND ND ND 0.96 1 -- -- ND ug/L 02/17/16 0.23 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.23 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.23 -- 1 ND -- ND ND ND ND ND ND ND ND ND 0.57 1 ug/L 07/11/17 0.23 -- 1 ND -- ND ND ND ND ND ND 1.4 1 ND ND ND ug/L 01/09/18 0.23 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.23 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.23 1 -- ND -- ND ND ND ND ND ND 1.2 ND ND ND ug/L 07/10/19 0.23 1 -- ND -- ND ND ND ND ND ND 1.2 B ND ND 0.53 1 ug/L 01/29/20 0.23 1 -- ND -- ND ND ND ND ND ND 0.95 1 ND ND ND 2-Butanone ug/L 01/09/06 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 4000 ug/L ug/L 07/12/06 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND No EPA MCL ug/L 01/16/07 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 1.3 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 1.3 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 1.3 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 1.3 -- 100 ND -- 80 1 ND ND ND ND ND ND ND ND ND ug/L 07/26/18 1.3 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 1.3 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 1.3 5 -- ND -- 2.1 1 ND ND ND ND ND ND ND ND ND ug/L 01/29/20 1.3 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ,,> GOLDER 5 of 7 March 2020 TABLE 4 20137881.101 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Toluene ug L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 600 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 1000 ug/L ug/L 01/16/07 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- 0.63 ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- 0.43 1 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.14 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.14 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.14 -- 1 ND -- ND ND ND ND ND ND 1.2 -- -- ND ug/L 07/14/16 0.14 -- 1 ND -- ND ND ND ND ND ND 2.0 -- -- ND ug/L 01/11/17 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.14 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.14 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.14 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.14 1 -- ND -- ND ND ND ND ND ND ND ND ND ND Vinyl chloride ug 01/09/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 0.03 ug/L ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 2 ug/L ug/L 01/16/07 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.78 J ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- 0.93 J ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- 0.90 J ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- 1.40 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.32 -- 1 ND -- 0.58 J ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.32 -- 1 ND -- 0.95 J ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.32 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.32 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND y enes (Total) ug 01 /09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 500 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 10,000 ug/L ug/L 07/02/07 -- -- 4 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.45 -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.45 -- 5 ND -- ND ND ND ND 0.71 1 ND ND -- -- ND ug/L 07/14/16 0.45 -- 5 ND -- ND ND ND ND 0.50 1 ND ND -- -- ND ug/L 01/11/17 0.45 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.45 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.45 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.45 3 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.45 3 -- ND -- ND ND ND ND 0.51 1 ND ND ND ND ND ug/L 07/10/19 0.45 3 -- ND -- ND ND ND ND ND ND ND ND 0.64 1 ND ug/L 01/29/20 0.45 3 -- ND -- ND ND ND ND ND ND ND 0.46 1 ND ND 1,4-Dioxane ug/L 07/26/18 1.2 2 -- ND -- 67 ND 1.5 1 14 210 ND 25 16 180 ND NC 2L = 3 ug/L ug/L 01/30/19 1.2 2 -- ND -- 29 ND 1.3 1 3.4 290 ND 35 20 97 ND No EPA MCL ug/L 07/10/19 1.2 2 -- ND -- 92 ND 1.4 1 4.8 260 1.3 1 28 13 140 ND ug/L 01/29/20 0.8 2 -- ND -- 33 ND 0.93 1 9.8 220 1.8 1 32 25 45 ND Tetrahydrofuran ug/L 01/13/11 -- -- -- ND -- ND ND ND ND 6.2 ND ND -- -- ND No Standard ug/L 07/21/11 -- -- -- ND -- ND ND ND ND 21 ND ND -- -- ND No EPA MCL ug/L 01/16/12 -- -- -- ND -- ND ND ND ND 61 ND ND -- -- ND ug/L 07/09/12 -- -- -- ND -- ND ND ND ND 30 ND ND -- -- ND ug/L 01/14/13 -- -- -- ND -- 0.95 1 ND ND ND 22 ND ND -- -- ND ug/L 07/09/13 -- -- -- ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- -- ND -- ND ND ND ND 8.1 ND ND -- -- ND ug/L 07/08/14 -- -- -- ND -- 3.3 ND ND ND 14 ND ND -- -- ND ug/L 03/03/15 0.80 -- -- ND -- 1.4 ND ND ND 6.3 ND ND -- -- ND ug/L 08/12/15 0.80 -- -- 2.8 -- ND 1.5 ND ND 25 ND ND -- -- ND ug/L 02/17/16 0.80 -- -- ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.80 -- -- ND -- ND ND ND ND 5.6 ND ND -- -- ND ug/L 01/11/17 0.80 -- -- ND -- ND ND ND ND 15 ND ND ND 36 ND ug/L 07/11/17 0.80 -- -- ND -- ND ND ND ND 21 ND 2.2 1 ND 18 ND ug/L 01/09/18 0.53 -- -- ND -- 12 ND ND ND 50 ND ND 0.65 1 85 ND ug/L 07/26/18 0.53 1 -- ND -- 0.77 1 ND ND ND 66 ND ND ND 130 ND ug/L 01/30/19 0.53 1 -- ND -- ND ND ND ND 99 ND ND ND 31 4.4 ug/L 07/10/19 0.53 1 -- ND -- 38 ND ND ND 98 ND 6.8 1.4 47 ND ug/L 01/29/20 0.53 1 -- ND -- ND ND ND ND 81 ND ND ND 15 ND Chloride mg/L 01/16/07 -- -- -- 11.0 -- 13.0 4.0 7.0 19.0 16.0 4.0 11.0 -- -- -- NC 2L = 250 mg/L mg/L 07/02/07 -- -- -- 5.2 -- 6.9 2.8 B 7.0 9.0 9.3 3.3 6.7 -- -- 0.57 EPA MCL = 250 ug/L* mg/L 01/30/08 -- -- -- 6.5 -- 10 3.3 1 10 16 15 3.3 1 9.4 -- -- ND mg/L 07/17/08 -- -- -- 8.0 -- 14 4.3 B 9.8 21 14 3.9 B 8.4 -- -- 1.3 mg/L 01/14/09 -- -- -- 7.2 -- 6.9 1.8 1 5.0 12 14 -- -- -- -- ND mg/L 07/16/09 -- -- -- 8.4 -- 12 5.3 12 17 15 -- -- -- -- ND mg/L 01/04/10 -- -- -- 9.7 -- 8.0 6.4 7.4 10 20 5.0 7.0 -- -- ND mg/L 07/01/10 -- -- -- 9.9 -- 10 5.5 7.7 10 40 5.1 7.2 -- -- ND mg/L 01/13/11 -- -- -- 10 -- 24 5.8 12 11 41 4.9 1 7.7 -- -- ND mg/L 07/21/11 -- -- -- 12 -- 30 3.8 B 13 14 47 4.5 B 8.2 -- -- 1.5 mg/L 01/16/12 -- -- -- 13 -- 21 4.1 6.9 7 63 4.7 8.8 -- -- ND mg/L 07/09/12 -- -- -- 14 -- 24 4.0 B 11 14 66 4.8 B 11 -- -- 1.4 mg/L 01/14/13 -- -- -- 14 -- 61 5.3 B 12 5.8 B 55 4.9 B 12 -- -- 1.4 1 mg/L 07/09/13 -- -- -- 15 -- 61 4.2 1 7.5 7.1 46 5.3 14 -- -- ND mg/L 01/30/14 -- -- -- 14 -- 48 6.6 7.2 3.5 55 5.3 19 -- -- ND mg/L 07/08/14 -- -- -- 16 -- 120 6.3 8.6 9.1 63 5.5 28 -- -- ND mg/L 03/03/15 2.2 -- -- 16 -- 130 6.5 5.7 3.2 1 71 5.6 42 -- -- ND mg/L 08/12/15 2.2 -- -- 21 -- 150 5.3 14 11 76 6.2 32 -- -- ND 1 mg/L 02/17/16 2.2 -- -- 17 -- 110 15 7.1 4.2 1 100 5.2 40 -- -- ND mg/L 07/14/16 2.2 -- -- 22 -- 140 9.1 13 11 110 6.2 57 -- -- ND mg/L 01/11/17 2.2 -- -- 22 -- 220 8.4 19 3.9 1 120 5.9 66 34 75 ND mg/L 07/11/17 2.2 -- -- 22 -- 110 5.8 12 4.3 1 130 5.9 83 17 68 ND mg/L 01/09/18 2.2 -- -- 21 -- 210 9.4 23 17 160 6.2 96 45 140 ND mg/L 07/26/18 2.2 5 -- 17 -- 200 6.1 16 13 180 6.5 110 46 140 ND mg/L 01/30/19 2.2 5 -- 18 -- 73 20 10 3.8 1 180 7.2 120 46 61 ND mg/L 07/10/19 2.2 5 -- 18 -- 190 12 13 8.0 210 7.9 110 39 130 ND mg/L 01/29/20 2.2 5 -- 20 -- 94 10 12 5.4 200 12 140 81 52 ND Total Dissolved Solids mg/L 01/16/07 -- -- -- 214 -- 180 68 82 280 212 236 236 -- -- NC 2L = 500 mg/L mg/L 07/02/07 -- -- -- 190 -- 180 74 82 200 260 150 200 -- -- ND EPA MCL = 500 ug/L* mg/L 01/30/08 -- -- -- 210 -- 200 100 110 410 310 180 240 -- -- ND mg/L 07/17/08 -- -- -- 220 -- 270 54 90 280 220 140 190 -- -- ND mg/L 01/14/09 -- -- -- 240 -- 190 100 100 320 240 -- -- -- -- ND mg/L 07/16/09 -- -- -- 240 -- 360 110 120 260 280 -- -- -- -- ND mg/L 01/04/10 -- -- -- 280 -- 230 86 82 260 310 160 210 -- -- ND 1 mg/L 07/01/10 -- -- -- 270 -- 310 86 96 250 480 190 240 -- -- ND 1 mg/L 01/13/11 -- -- -- 220 -- 330 190 150 280 490 190 220 -- -- ND mg/L 07/21/11 -- -- -- 260 -- 370 48 120 320 520 190 230 -- -- ND mg/L 01/16/12 -- -- -- 300 -- 300 98 94 280 560 180 250 -- -- ND mg/L 07/09/12 -- -- -- 330 -- 550 96 140 270 760 230 340 -- -- ND mg/L 01/14/13 -- -- -- 350 -- 580 120 130 290 670 200 370 -- -- ND mg/L 07/09/13 -- -- -- 350 -- 530 64 70 230 600 190 360 -- -- ND mg/L 01/30/14 -- -- -- 350 -- 500 88 130 180 660 210 400 -- -- ND mg/L 07/08/14 -- -- -- 360 -- 910 66 110 230 750 210 460 -- -- ND mg/L 03/03/15 10 -- -- 390 -- 770 56 56 120 860 210 510 -- -- ND mg/L 08/12/15 50 -- -- 370 -- 1200 ND 130 200 860 210 360 -- -- ND mg/L 02/17/16 50 -- -- 430 -- 810 110 100 150 1100 240 450 -- -- ND mg/L 07/14/16 50 -- -- 390 -- 940 72 90 220 1100 250 470 -- -- ND mg/L 01/11/17 50 -- -- 430 -- 1600 86 120 210 1300 280 540 240 550 ND mg/L 07/11/17 50 -- -- 390 -- 1100 ND 110 130 1300 290 700 190 620 ND mg/L 01/09/18 50 -- -- 430 -- 1700 ND 86 190 1500 250 810 280 1100 ND mg/L 07/26/18 50 50 -- 380 -- 1700 54 120 190 1500 260 880 400 1000 ND mg/L 01/30/19 50 50 -- 440 -- 740 120 650 110 1600 300 910 490 570 ND mg/L 07/10/19 50 50 -- 410 -- 1800 82 76 160 2100 300 910 330 1200 ND mg/L 01/29/20 50 50 -- 420 -- 1000 96 80 160 2100 340 1100 750 540 ND ,,> GOLDER 6 of 7 March 2020 TABLE 4 20137881.101 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Sulfate as SO4 mg/L 01/16/07 -- -- -- 48.4 -- 44.3 7.03 B 33.4 41.7 51.2 24.0 13.6 -- -- 2.25 NC 2L = 250 mg/L mg/L 07/02/07 -- -- 250 39 -- 25 6.4 19 25 69 11 10 -- -- ND EPA MCL = 250 ug/L* mg/L 01/30/08 -- -- 250 35 J -- 24 J 5.9 J 23 J 79 J 26 J 10 J 9.2 J -- -- ND mg/L 07/17/08 -- -- 250 62 J -- 41 J 8.9 J 23 J 39 J 73 J 14 J 14 J -- -- ND mg/L 01/14/09 -- -- 250 66 J -- 54 J 11 J 21 J 24 J 73 J -- -- -- -- ND mg/L 07/16/09 -- -- 250 74 J -- 36 J 8.3 J 33 J 33 J 100 -- -- -- -- ND mg/L 01/04/10 -- -- 250 95 J -- 37 J 11 J 26 J 25 J 110 J 12 J 19 J -- -- ND mg/L 07/01/10 -- -- 250 93 J -- 41 J 9.6 J 27 J 22 J 150 J 13 J 23 J -- -- ND mg/L 01/13/11 -- -- 250 99 J -- 42 J 10 J 44 J 13 J 140 J 14 J 36 J -- -- ND mg/L 07/21/11 -- -- 250 110 J -- 66 J 8.3 J 40 J 25 J 140 J 15 J 46 J -- -- ND mg/L 01/16/12 -- -- 250 100 J -- 55 J 9.1 J 23 J 13 J 130 J 18 J 50 J -- -- ND mg/L 07/09/12 -- -- 250 110 J -- 26 J 7.9 J 40 J 31 J 190 J 20 J 56 J -- -- ND mg/L 01/14/13 -- -- 250 120 J -- 55 J 13 J 58 J 9.6 J 190 J 23 J 62 J -- -- ND mg/L 07/09/13 -- -- 250 140 J -- 55 J 8.6 J 37 J 17 J 180 J 24 J 71 J -- -- 1.6 mg/L 01/30/14 -- -- 250 160 J -- 68 J 15 J 52 J 6.4 J 200 J 28 J 67 J -- -- ND mg/L 07/08/14 -- -- 250 150 J -- 45 J 11 J 49 J 26 J 210 J 28 J 87 J -- -- ND mg/L 03/03/15 2.9 -- 250 170 J -- 57 J 11 J 31 J 13 J 270 35 J 92 J -- -- ND mg/L 08/12/15 2.9 -- 250 160 J -- 26 J 8.6 J 71 J 19 J 210 J 35 J 54 J -- -- ND mg/L 02/17/16 2.9 -- 250 200 J -- 34 J 15 J 31 J 14 J 200 J 38 J 54 J -- -- ND mg/L 07/14/16 2.9 -- 250 210 J -- 73 J 10 J 56 J 28 J 240 J 45 J 53 J -- -- ND mg/L 01/11/17 2.9 -- 250 210 J -- 27 J 9.6 J 43 J 8.3 J 220 J 43 J 51 J 56 J 120 J ND mg/L 07/11/17 2.9 -- 250 220 -- 22 J 9.9 J 39 J 11 J 150 J 46 J 54 J 34 J 99 J ND mg/L 01/09/18 2.9 -- 250 220 J -- 23 J 8.6 J 41 J 36 J 130 J 47 J 60 J 71 J 150 J ND mg/L 07/26/18 2.9 5 -- 210 -- 13 8.9 48 29 130 46 58 36 98 ND mg/L 01/30/19 2.9 5 -- 230 -- 42 12 19 9.6 82 45 61 49 41 ND mg/L 07/10/19 2.9 5 -- 220 -- 20 12 31 30 62 42 61 39 75 ND m /L 01/29/20 2.9 5 -- 200 -- 44 12 27 14 52 41 63 54 39 ND Total Alkalinity mg/L 01/16/07 -- -- -- 39 -- 53 5.0 25 17 160 100 170 -- -- No NC 2L Standard mg/L 07/02/07 -- -- -- 20 -- 100 46 12 110 100 99 160 -- -- ND No EPA MCL mg/L 01/30/08 -- -- -- -- -- -- -- -- 310 -- -- -- -- -- ND mg/L 01/30/08 -- -- -- 17 -- 81 32 ND -- 89 100 170 -- -- ND mg/L 07/17/08 -- -- -- 22 B -- 210 30 19 B 180 68 100 150 -- -- 4.8 mg/L 01/14/09 -- -- -- 25 -- 88 32 5.6 J 180 42 -- -- -- -- ND mg/L 07/16/09 -- -- -- 17 -- 150 34 ND 160 59 -- -- -- -- ND mg/L 01/04/10 -- -- -- 43 -- 160 51 24 100 76 110 160 -- -- ND mg/L 07/01/10 -- -- -- 29 -- 200 31 13 J 170 85 110 130 -- -- ND mg/L 01/13/11 -- -- -- 23 -- 230 29 ND 210 140 110 130 -- -- ND mg/L 07/21/11 -- -- -- 25 -- 170 30 12 J 220 140 110 110 -- -- ND mg/L 01/16/12 -- -- -- 26 -- 160 28 ND 190 170 110 120 -- -- ND mg/L 07/09/12 -- -- -- 23 -- 280 31 13 130 200 120 150 -- -- ND mg/L 01/14/13 -- -- -- 20 -- 280 32 ND 190 190 130 170 -- -- ND mg/L 07/09/13 -- -- -- 29 -- 260 32 ND 100 160 130 190 -- -- ND mg/L 01/30/14 -- -- -- 23 -- 250 32 ND 140 210 140 200 -- -- ND mg/L 07/08/14 -- -- -- 29 -- 500 41 22 110 270 150 230 -- -- ND mg/L 03/03/15 14 -- -- 30 -- 440 33 ND 110 310 150 270 -- -- ND mg/L 08/12/15 14 -- -- 20 -- 730 36 17 180 330 150 220 -- -- ND mg/L 02/17/16 14 -- -- 23 -- 480 39 ND 950 510 160 250 -- -- ND mg/L 07/14/16 70 -- -- 23 -- 550 33 15 130 560 170 290 -- -- ND mg/L 01/11/17 14 -- -- 27 -- 990 33 ND 190 640 170 320 78 200 ND mg/L 07/11/17 14 -- -- 22 -- 680 26 17 100 790 180 380 98 300 ND mg/L 01/09/18 14 -- -- 24 -- 1200 32 ND 120 940 180 510 100 590 ND mg/L 07/26/18 14 15 -- ND -- 1100 32 23 120 920 180 500 190 590 ND mg/L 01/30/19 14 15 -- ND -- 480 47 ND 110 1100 180 550 280 350 ND mg/L 07/10/19 14 15 -- ND -- 1100 36 ND 88 1400 200 480 170 740 ND mg/L 01/29/20 14 15 -- ND -- 610 33 14 J 72 1500 240 610 370 330 ND Notes: 1. MW = groundwater monitoring well 2. ug/L = micrograms per liter 3. mg/L = milligrams per liter 4. J = Prior to the 07/18 event, J flags are estimated values below the SWS Reporting limit. Beginning with the 07/18 event, J flags are estimated values between MDL and PQL. 5. B = blank -qualified data 6. ND = not detected at or above the stated reporting limit 7. Standards = NC 2L Groundwater Standards or North Carolina Solid Waste Section Groundwater Protection Standards 8. --- = no data available 9. Bolded = Concentrations above the current NC 2L Groundwater Standards or Solid Waste Section Groundwater Protection Standards (SWS GPS) have been bolded. 10. Shaded = Concentrations above the current EPA Maximum Contaminate Level (MCL) have been shaded. 11. Blanks = Field, trip, and laboratory blanks. 12. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/18/07 13. # = EPA Action Level 14. * = EPA Secondary MCL 15. Data prior to 01 /09/06 provided by Joyce Engineering, Inc. 16. P-3 added as an additional upgradient well for Appendix 1 metals sampling as of 07/10/19 17. The following dilutions were noted for the January 2020 event: Antimony and Thallium 2x in all wells; 1,4-dioxane 10x (MW-6), Total Alkalinity 10x (MW-2, MW-6), 5x (MW-8, AMW-2), 2x (MW-7s, AMW-1), Chloride 4x (MW-1, MW-2, MW-6), 2x (MW-8, AMW-2), Sulfate 4x (MW-1, MW-2, MW-6), 2x (MW-8, AMW-2) G 0 L D E P 7 of 7 March 2020 TABLE 5 20137881.101 Summary of Field Parameters in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Upgradient Downgradient Reporting Sample Parameter Units Date MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 pH (Field) S.U. 07/06/05 6.47 -- 5.44 6.00 5.85 5.88 6.42 -- -- -- S. U. 01 /09/06 5.96 -- 5.76 6.37 6.02 6.27 6.10 -- -- -- -- S.U. 07/12/06 6.20 -- 5.64 6.10 5.70 6.38 6.85 -- -- S. U. 01/16/07 7.35 -- 6.82 6.88 6.61 6.22 6.59 6.74 7.20 -- -- S.U. 07/02/07 7.47 -- 7.24 7.14 6.77 7.13 7.40 7.30 7.13 -- -- S.U. 01/30/08 5.78 -- 5.51 5.92 5.34 6.29 6.25 6.58 7.35 -- -- S.U. 07/17/08 5.75 -- 5.75 5.70 5.86 6.05 5.91 6.47 7.23 -- -- S.U. 01/14/09 5.77 -- 5.64 5.60 5.11 6.28 5.45 -- -- S. U. 07/16/09 5.64 -- 5.85 5.59 5.30 6.04 5.96 -- -- S. U. 01/04/10 5.49 -- 5.59 5.36 4.73 6.08 6.05 6.30 6.96 -- -- S.U. 07/01/10 5.53 -- 5.72 5.37 5.22 5.96 5.49 6.34 6.48 -- -- S.U. 01/13/11 5.54 -- 5.80 5.57 5.24 5.96 6.28 6.45 6.52 -- -- S.U. 07/21/11 5.27 -- 5.50 5.10 5.02 6.02 5.84 6.22 6.00 -- -- S.U. 01/16/12 5.59 -- 5.76 5.59 5.11 6.26 5.79 6.43 6.36 -- -- S.U. 07/09/12 5.92 -- 6.12 5.53 5.57 6.20 6.45 6.60 6.30 -- -- S.U. 01/14/13 5.47 -- 6.00 5.78 5.45 6.11 6.41 6.44 6.29 -- -- S.U. 07/09/13 5.02 -- 5.40 4.83 4.60 5.97 5.67 5.56 5.70 -- -- S.U. 01/30/14 5.58 -- 6.04 5.75 5.48 6.35 6.42 6.44 6.30 -- -- S.U. 07/08/14 5.63 -- 6.32 5.86 5.72 6.42 6.60 6.62 6.27 -- -- S.U. 03/03/15 5.49 -- 6.23 5.88 5.50 6.39 6.61 6.50 6.18 -- -- S.U. 08/12/15 5.66 -- 6.08 5.37 5.54 5.98 6.54 6.03 6.10 -- -- (Verification Event) S.U. 09/28/15 -- -- 6.31 -- -- -- -- -- -- S. U. 02/17/16 5.25 -- 6.32 5.22 5.06 6.07 6.25 6.16 6.38 -- -- S.U. 07/14/16 5.19 -- 5.87 5.17 5.06 5.81 6.15 5.97 5.89 -- -- (Verification Event) S.U. 08/04/16 -- -- 5.97 -- -- -- 6.16 -- -- -- -- S. U. 01 /01 /17 4.95 -- 6.15 4.92 4.84 5.67 6.47 5.77 6.03 6.00 5.88 S.U. 07/11/17 5.30 -- 6.14 5.11 4.96 5.91 6.32 5.94 6.00 6.06 5.90 S.U. 01/09/18 5.56 -- 6.41 5.67 5.49 5.98 6.59 6.41 6.37 6.08 6.19 (Verification Event) S.U. 03/16/18 -- -- -- -- -- -- -- -- 6.22 -- 6.13 S.U. 07/26/18 5.45 -- 6.27 5.56 5.79 6.11 6.49 6.34 6.11 6.09 6.07 (Verification Event) S.U. 09/10/18 -- -- 6.33 -- -- -- -- -- 5.98 -- 6.08 S.U. 01/30/19 5.63 -- 6.51 5.82 5.54 6.41 6.50 6.49 6.18 6.32 6.26 S.U. 07/10/19 5.41 5.40 6.34 5.49 5.28 6.32 6.48 6.23 6.10 6.16 6.20 (Verification Event) S.U. 10/04/19 -- -- -- -- -- -- -- -- -- -- 6.12 S.U. 01/29/20 5.55 5.51 6.75 5.67 5.73 6.24 6.73 6.38 6.34 6.45 6.37 Specific Conductance us/cm 07/06/05 253 -- 222 178 168 313 520 -- -- -- -- (Field) us/cm 01/09/06 146 -- 164 82 81 334 142 -- -- -- -- us/cm 07/12/06 235 -- 222 118 215 363 367 -- -- -- -- uS/cm 01/16/07 224 -- 279 850 110 497 226 268 374 -- -- us/cm 07/02/07 234 -- 330 131 125 355 413 261 384 -- -- us/cm 01 /30/08 317 -- 411 269 346 999 595 318 505 -- -- us/cm 07/17/08 266 -- 528 105 153 510 376 248 360 -- -- us/cm 01/14/09 279 -- 319 109 95 588 337 -- -- -- -- uS/cm 07/16/09 288 -- 547 122 160 460 424 -- -- -- -- uS/cm 01/04/10 371 -- 429 130 124 561 510 257 371 -- -- us/cm 07/01/10 318 -- 466 101 123 465 631 235 302 -- -- us/cm 01/13/11 327 -- 578 118 189 454 700 251 344 -- -- us/cm 07/21/11 408 -- 589 101 198 595 769 280 382 -- -- us/cm 01/16/12 369 -- 432 97 102 460 815 269 367 -- -- us/cm 07/09/12 341 -- 675 90 152 337 943 246 412 -- -- us/cm 01/14/13 334 -- 659 107 166 382 722 247 388 -- -- us/cm 07/09/13 468 -- 847 102 154 432 864 311 551 -- -- us/cm 01/30/14 530 -- 915 156 209 443 1072 367 649 -- -- us/cm 07/08/14 506 -- 1502 138 207 425 1066 356 717 -- -- us/cm 03/03/15 570 -- 1344 133 128 330 1356 312 820 -- -- us/cm 08/12/15 458 -- 1600 94 220 401 1120 332 559 -- -- Verification Event us/cm 09/28/15 -- -- 1845 -- -- -- -- -- -- -- -- uS/cm 02/17/16 554 -- 1363 165 134 316 1507 380 731 -- -- us/cm 07/14/16 570 -- 1530 135 209 408 1710 411 800 -- -- Verification Event us/cm 08/04/16 -- -- 900 -- -- -- 1730 -- -- -- -- us/cm 01 /01 /17 529 -- 2040 119 188 406 1560 387 750 351 800 us/cm 07/11/17 608 -- 1563 113 178 350 1820 436 1113 334 887 us/cm 01/09/18 621 -- 2701 142 223 407 2360 458 1292 528 1647 Verification Event us/cm 03/16/18 -- -- -- -- -- -- -- -- 1306 -- 933 us/cm 07/26/18 576 -- 2720 108 225 385 2450 444 1251 670 1521 Verification Event us/cm 09/10/18 -- -- 2079 -- -- -- -- -- 1287 -- 1158 us/cm 01/30/19 582 -- 1210 193 127 275 260 467 1407 858 905 us/cm 07/10/19 520 150 2348 174 157 324 2460 451 1254 572 1561 Verification Event us/cm 10/04/19 -- -- -- -- -- -- -- -- -- -- 1776 us/cm 01 /29/20 463 143 1688 130 205 237 2388 431 1428 1374 998 Temperature (Field) °C 07/06/05 20.80 -- 20.50 16.20 19.30 19.00 19.60 -- -- -- -- °C 01 /09/06 17.86 -- 14.23 15.62 13.82 16.72 14.35 -- -- -- -- °C 07/12/06 23.85 -- 24.21 20.80 21.80 20.59 20.91 -- -- -- -- °C 01/16/07 15.80 -- 12.10 13.80 18.80 12.50 12.00 12.20 12.50 -- -- °C 07/02/07 19.65 -- 18.72 17.72 18.23 18.54 17.27 16.27 18.76 -- -- °C 01 /30/08 16.01 -- 12.32 15.12 13.19 14.84 13.01 14.34 12.35 -- -- °C 07/17/08 18.58 -- 17.34 17.47 17.02 19.68 20.10 17.33 17.16 -- -- °C 01/14/09 15.08 -- 10.34 13.80 12.34 14.24 11.14 -- -- -- -- °C 07/16/09 18.48 -- 16.95 17.80 16.62 18.38 19.07 -- -- -- -- °C 01/04/10 12.50 -- 10.57 12.82 10.59 14.03 11.46 12.37 10.40 -- -- °C 07/01/10 18.65 -- 16.14 15.30 16.12 17.55 19.93 16.11 18.97 -- -- °C 01/13/11 12.86 -- 11.04 13.45 11.39 13.50 10.63 12.51 9.74 -- -- °C 07/21/11 19.57 -- 17.91 17.25 18.02 18.06 19.68 17.72 21.63 -- -- °C 01/16/12 15.62 -- 11.97 14.60 13.16 14.77 12.66 14.01 11.33 -- -- °C 07/09/12 19.26 -- 17.83 17.60 18.80 18.57 23.63 17.25 20.90 -- -- °C 01/14/13 16.81 -- 13.86 15.34 13.68 15.68 14.04 15.12 14.27 -- -- °C 07/09/13 18.75 -- 17.51 17.16 17.14 17.54 18.92 17.16 20.77 -- -- °C 01/30/14 14.7 -- 10.5 12.7 11.1 13.9 10.2 13.1 10.6 -- -- °C 07/08/14 19.0 -- 15.8 15.2 16.1 17.6 18.9 18.8 18.9 -- -- °C 03/03/15 14.2 -- 9.88 12.5 10.3 12.0 9.46 13.0 9.43 -- -- °C 08/12/15 18.6 -- 17.5 15.1 16.3 17.6 19.3 15.8 17.1 -- -- Verification Event °C 09/28/15 -- -- 17.41 -- -- -- -- -- -- -- -- °C 02/17/16 14.70 -- 11.9 13.8 11.4 14.4 11.6 14.8 12.8 -- -- °C 07/14/16 19.0 -- 16.8 17.0 17.2 18.2 21.3 17.1 21.8 -- -- Verification Event °C 08/04/16 -- -- 18.4 -- -- -- 19.3 -- -- -- -- °C 01 /01 / 17 16.0 -- 14.2 13.9 13.2 15.2 14.4 13.6 13.2 14.1 11.5 °C 07/11/17 19.8 -- 18.3 16.8 17.6 17.7 21.1 16.7 23.1 17.0 19.0 °C 01/09/18 14.4 -- 13.1 13.8 13.6 16.3 13.7 15.6 14.2 12.9 11.0 Verification Event °C 03/16/18 -- -- -- -- -- -- -- -- 13.0 -- 11.0 °C 07/26/18 19.6 -- 17.6 17.7 17.2 22.3 22.5 19.6 19.2 17.1 19.0 Verification Event oC 09/10/18 -- -- 18.9 -- -- -- -- -- 19.1 -- 19.8 °C 01/30/19 14.0 -- 11.0 13.1 11.7 12.6 10.7 12.4 12.6 12.2 9.2 °C 07/10/19 19.6 19.4 18.3 18.2 17.9 18.9 20.4 17.4 18.8 16.5 18.9 Verification Event °C 10/04/19 -- -- -- -- -- -- -- -- -- -- 20.0 °C 01 /29/20 13.6 14.8 12.5 13.2 11.6 13.5 12.2 13.7 11.8 12.1 10.2 .> GOLDER 1of2 March 2020 TABLE 5 20137881.101 Summary of Field Parameters in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Upgradient Downgradient Reporting Sample Parameter Units Date MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Turbidity (Field) NTU 07/06/05 92.1 -- 126 241 65.2 71.4 71.4 -- -- -- -- NTU 01/09/06 165 -- 293 48.5 55.2 28.4 130 -- -- -- -- NTU 07/12/06 130 -- 89.2 49.2 28 64 387 -- -- -- -- NTU 01/16/07 372 -- 62.5 73.3 188 497 294 >1000 130 -- -- NTU 07/02/07 222 -- 521 37 146 61.2 405 >1000 66.3 -- -- NTU 01/30/08 13.7 -- 15.5 3.08 44.6 56.1 6.81 64.1 58.4 -- -- NTU 07/17/08 4.48 -- 0.97 1.11 18.3 45.7 2.41 7 5.21 -- -- NTU 01/14/09 3.02 -- 38.7 1.64 24.7 71.3 2.95 -- -- -- -- NTU 07/16/09 2.38 -- 2.65 4.1 27.5 18.4 2.31 -- -- -- -- NTU 01/04/10 2.50 -- 13.0 3.64 21.0 13.2 3.11 3.48 20.5 -- -- NTU 07/01/10 1.58 -- 25.9 1.87 5.66 3.51 2.53 3.99 1.83 -- -- NTU 01/13/11 0.43 -- 12.6 1.19 7.57 11.6 1.24 0.73 0.52 -- -- NTU 07/21/11 1.33 -- 25.0 1.28 11.89 6.92 8.59 1.31 0.50 -- -- NTU 01/16/12 1.10 -- 24.8 2.13 14.6 44.4 1.70 1.45 0.51 -- -- NTU 07/09/12 3.25 -- 27.6 3.99 98.5 5.23 20.2 4.81 3.95 -- -- NTU 01/14/13 4.05 -- 9.87 10.5 14.8 4.20 4.98 6.70 2.09 -- -- NTU 07/09/13 2.14 -- 11.7 1.36 16.1 4.00 2.30 3.31 1.20 -- -- NTU 01/30/14 2.71 -- 81.0 8.48 62.8 51.3 1.03 2.71 27.5 -- -- NTU 07/08/14 3.40 -- 19.1 3.11 12.9 6.77 3.13 3.44 7.84 -- -- NTU 03/03/15 0.63 -- 26.1 1.93 21.3 363 9.97 0.83 0.80 -- -- NTU 08/12/15 0.47 -- 88.3 0.87 14.6 5.57 4.83 0.82 1.86 -- -- Verification Event NTU 09/28/15 -- -- 11.9 -- -- -- -- -- -- -- -- NTU 02/17/16 1.58 -- 25.0 3.52 16.9 49.1 3.53 1.54 5.37 -- -- NTU 07/14/16 0.96 -- 4.31 1.53 10.3 13.6 1.96 0.95 1.02 -- -- Verification Event NTU 08/04/16 -- -- 10.2 -- -- -- 3.98 -- -- -- -- NTU 01/01/17 2.35 -- 1.95 2.52 7.95 16.3 16.9 0.32 13.3 7.81 9.06 NTU 07/11/17 0.92 -- 8.98 1.92 9.16 12.0 2.16 0.67 4.04 1.79 5.57 NTU 01/09/18 0.77 -- 0.76 0.90 31.40 4.65 3.68 0.57 2.90 4.37 1.96 Verification Event NTU 03/16/18 -- -- -- -- -- -- -- -- 2.92 -- 6.84 NTU 07/26/18 0.68 -- 8.40 4.07 8.13 6.34 4.13 1.16 5.82 7.32 3.13 Verification Event NTU 09/10/18 -- -- 2.56 -- -- -- -- -- 3.68 -- 0.78 NTU 01/30/19 2.01 -- 9.97 3.83 9.10 9.89 9.95 2.39 9.90 7.55 4.17 NTU 07/10/19 3.85 9.37 3.40 3.05 9.72 9.96 4.63 3.86 0.75 3.54 4.11 Verification Event NTU 10/04/19 -- -- -- -- -- -- -- -- -- -- 0.87 NTU 01/29/20 0.85 0.41 6.17 6.16 7.09 8.93 9.45 1.92 1.68 9.79 9.59 Oxidation Reduction mV 07/06/05 -- -- -- -- -- -- -- -- -- Potential (Field) mV 01/09/06 203 -- 132 129 217 78 233 -- -- -- -- mV 01/09/06 7.51 -- 4.73 9.67 5.06 5.75 9.96 -- -- -- -- mV 07/12/06 140 -- 179 150 211 32 144 -- -- -- -- mV 07/12/06 11.63 -- 12.28 13.84 12.60 12.19 12.23 -- -- -- -- mV 01/16/07 106 -- 95 65 130 64 187 63 105 -- -- mV 01/16/07 9.10 -- 4.90 11.20 8.60 10.50 10.90 9.70 9.80 -- -- mV 01/30/08 213 -- 194 177 226 -21 203 160 166 -- -- mV 07/17/08 178 -- -1 151 68 106 122 117 117 -- -- mV 01/14/09 78.5 -- 96.3 200.6 152.5 -7.8 171.1 -- -- -- -- mV 07/16/09 174.7 -- 30.1 148.0 183.6 27.4 134.9 -- -- -- -- mV 01/04/10 111.1 -- 62.0 153.1 192.9 -49.0 117.2 83.3 55.1 -- -- mV 07/01/10 64.6 -- 0.4 158.6 -73.3 -119.7 67.6 32.2 2.5 -- -- mV 01/13/11 160.7 -- 66.5 188.6 227.6 99.1 130.3 152.9 99.0 -- -- mV 07/21/11 103.9 -- 11.2 142.1 131.2 -37.6 77.7 77.9 45.7 -- -- mV 01/16/12 169.2 -- 40.5 179.1 249.5 -49.4 58.9 75.3 105.6 -- -- mV 07/09/12 52.6 -- 7.3 89.2 53.8 18.4 10.2 30.8 32.8 -- -- mV 01/14/13 33.5 -- 7.9 23.1 17.4 -81.7 8.7 15.0 19.1 -- -- mV 07/09/13 121.4 -- -10.5 107.6 105.3 -31.1 12.6 82.1 -16.7 -- -- mV 01/30/14 210.2 -- -60.6 131.6 190.6 -74.6 6.2 85.7 -121.9 -- -- mV 07/08/14 246.9 -- -55.3 193.8 143.2 -48.9 -21.4 141.7 -43.7 -- -- mV 03/03/15 218.8 -- -13.5 98.5 145.6 -35.1 24.3 87.9 2.7 -- -- mV 08/12/15 272.1 -- 27.2 181.3 149.2 -28.7 -149.4 230.8 14.0 -- -- Verification Event mV 09/28/15 -- -- -97.4 -- -- -- -- -- -- -- -- mV 02/17/16 297.4 -- 2.7 230.1 294.6 -13.9 -14.4 149.9 -7.2 -- -- mV 07/14/16 266.3 -- -22.1 172.4 130.0 -20.3 -101.8 204.4 -61.3 -- -- Verification Event mV 08/04/16 -- -- 8.2 -- -- -- -43.2 -- -- -- -- mV 01/01/17 437.7 -- -22.9 271.4 282.1 -6.1 14.8 380.6 60.4 92.1 132.6 mV 07/11/17 265.9 -- -33.1 238.8 207.1 -30.1 -58.6 224.7 -14.0 50.5 42.8 mV 01/09/18 411.1 -- -28.8 358.1 403.2 103.0 58.8 360.7 127.9 203.7 135.1 Verification Event mV 03/16/18 -- -- -- -- -- -- -- -- 229.8 -- 242.4 mV 07/26/18 199.9 -- -41.5 286.4 235.9 -7.9 21.7 347.7 111.5 55.8 116.8 Verification Event mV 09/10/18 -- -- -34.9 -- -- -- -- -- 158.0 -- 102.8 mV 01/30/19 189.1 -- -22.8 181.0 174.1 -23.1 -7.3 85.2 45.0 143.0 63.8 mV 07/10/19 302.8 104.4 -52.9 92.5 117.7 33.6 -12.2 361.2 177.5 104.7 34.7 Verification Event mV 10/04/19 -- -- -- -- -- -- -- -- -- -- -9.8 mV 01/29/20 141.6 185.3 -51.9 161.4 260.1 -162.2 61.5 146.6 236.1 -22.6 241.0 Dissolved Oxygen (Field) mg/L 01/30/08 3.83 -- 5.13 5.56 2.52 3.48 5.34 6.40 3.27 -- -- mg/L 07/17/08 4.55 -- 0.54 4.58 0.36 1.81 5.61 5.78 1.50 -- -- mg/L 01/14/09 5.86 -- 4.45 6.24 3.24 2.12 2.43 -- -- -- -- mg/L 07/16/09 4.79 -- 0.99 4.31 1.05 1.60 4.66 -- -- -- -- mg/L 01/04/10 5.21 -- 0.94 5.39 1.72 1.54 6.53 6.05 3.02 -- -- mg/L 07/01/10 4.37 -- 0.49 5.49 0.80 1.18 0.93 6.20 1.11 -- -- mg/L 01/13/11 5.19 -- 0.92 3.62 4.96 1.54 5.01 5.80 2.60 -- -- mg/L 07/21/11 5.64 -- 0.69 3.96 1.16 2.31 1.17 5.51 1.33 -- -- mg/L 01/16/12 4.63 -- 1.18 4.64 1.03 0.20 0.69 5.18 2.38 -- -- mg/L 07/09/12 4.67 -- 0.54 3.99 0.62 0.54 1.92 5.02 0.93 -- -- mg/L 01/14/13 4.78 -- 0.38 3.22 0.82 1.02 3.71 5.08 0.78 -- -- mg/L 07/09/13 4.68 -- 3.30 4.79 1.88 2.07 1.80 6.19 3.42 -- -- mg/L 01/30/14 3.95 -- 0.23 5.16 0.80 0.38 2.39 4.15 0.35 -- -- mg/L 07/08/14 4.14 -- 0.44 5.60 0.46 0.61 0.61 5.09 0.84 -- -- mg/L 03/03/15 3.41 -- 2.77 4.21 4.60 0.73 3.33 5.53 0.86 -- -- mg/L 08/12/15 3.52 -- 0.76 3.68 1.00 0.62 0.58 4.00 0.39 -- -- Verification Event mg/L 09/28/15 -- -- 0.85 -- -- -- -- -- -- -- -- mg/L 02/17/16 4.04 -- 1.53 6.05 1.51 1.05 0.75 3.76 1.21 -- -- mg/L 07/14/16 3.43 -- 1.40 4.90 0.45 2.81 1.30 3.95 0.75 -- -- Verification Event mg/L 08/04/16 -- -- 1.61 -- -- -- 0.36 -- -- -- -- mg/L 01/01/17 3.73 -- 0.65 3.00 0.60 2.46 0.43 4.23 0.50 0.30 0.73 mg/L 07/11/17 3.37 -- 1.41 3.94 0.62 0.75 0.16 3.95 1.49 0.19 0.22 mg/L 01/09/18 4.61 -- 1.52 2.21 2.87 0.44 2.52 3.17 0.24 0.30 0.21 Verification Event mg/L 03/16/18 -- -- -- -- -- -- -- -- 1.51 -- 0.25 mg/L 07/26/18 3.52 -- 0.17 4.96 0.84 0.53 1.21 3.58 0.61 0.10 0.23 Verification Event mg/L 09/10/18 -- -- 1.07 -- -- -- -- -- 0.38 -- 0.36 mg/L 01/30/19 3.88 -- 1.73 3.99 0.78 0.15 0.51 3.31 0.60 0.16 0.34 mg/L 07/10/19 3.42 1.96 3.06 3.67 0.86 0.34 0.27 2.97 1.15 1.51 0.33 Verification Event mg/L 10/04/19 -- -- -- -- -- -- -- -- -- -- 0.21 mg/L 01/29/20 3.42 0.66 1.16 4.13 1.91 0.20 0.18 1.99 0.35 0.21 1.24 Notes: 1. MW = groundwater monitoring well 2. mg/L = milligrams per liter 3. S.U. = Standard Units 4. NTU = Nephelometric Turbidity Units 5. uS/cm = microsiemens per centimeter 6. --- = no data available 7. Data prior to 01/09/06 provided by Joyce Engineering, Inc. .> GOLDER 2of2 March 2020 20137881.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter MDL MRL Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Antimony ug/L 01/16/07 -- -- 6 ND ND ND ND ND Human Health Standard = 640 ug/L ug/L 07/02/07 -- -- 6 -- ND -- ND ND ug/L 01/29/08 -- -- 6 ND ND ND ND ND ug/L 07/17/08 -- -- 6 -- ND -- ND ND ug/L 02/27/09 -- -- 6 ND ND ND ND ND ug/L 07/16/09 -- -- 6 dry ND dry ND ND ug/L 01/04/10 -- -- 6 0.0870 J ND ND ND ND ug/L 07/01/10 -- -- 6 dry dry dry ND ND ug/L 01/13/11 -- -- 6 ND ND ND ND ND ug/L 07/21/11 -- -- 6 dry ND -- ND ND ug/L 01/16/12 -- -- 6 ND ND ND ND ND ug/L 07/09/12 -- -- 6 dry ND dry ND 0.461 J ug/L 01/14/13 -- -- 6 ND ND ND ND ND ug/L 07/09/13 -- -- 6 ND 0.371 J ND 0.436 J ND ug/L 01/30/14 -- -- 6 ND ND ND 0.308 J ND ug/L 07/08/14 -- -- 6 dry ND dry ND ND ug/L 03/03/15 0.220 -- 6 ND 0.255 J ND ND ND ug/L 08/12/15 0.220 -- 6 dry ND dry ND ND ug/L 02/17/16 0.220 -- 6 ND ND ND 8.13 J ND ug/L 07/14/16 0.220 -- 6 ND ND ND ND ND ug/L 01/11/17 0.370 -- 6 ND ND 0.553 J 0.413 J ND ug/L 07/11/17 0.370 -- 6 dry dry ND ND ND ug/L 01/09/18 0.250 -- 6 ND ND ND ND ND ug/L 07/26/18 1.85 5 -- dry ND dry ND ND ug/L 01/30/19 0.740 2 -- ND ND ND ND ND ug/L 07/10/19 0.740 2 -- ND ND dry ND ND ug/L 01/30/20 0.740 2 -- ND ND ND ND ND Arsenic ug/L 10/08/03 -- -- 10 ND ND ND ND ND Freshwater Acute SW Standard = 340 ug/L ug/L 01/23/04 -- -- 10 ND ND ND ND ND Freshwater Chronic SW Standard = 150 ug/L ug/L 07/08/04 -- -- 10 ND ND ND ND ND ug/L 01/25/05 -- -- 10 ND ND ND ND ND ug/L 07/06/05 -- -- 10 dry ND dry ND ND ug/L 01/09/06 -- -- 10 ND ND ND ND ND ug/L 07/12/06 -- -- 10 ND ND ND ND ND ug/L 01/16/07 -- -- 10 ND 3.1 B 3.8 B ND 2.4 J ug/L 07/02/07 -- -- 10 dry ND dry ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND 2.1 J ug/L 07/17/08 -- -- 10 dry ND dry ND ND ug/L 02/27/09 -- -- 10 3.5 J ND ND ND ND ug/L 07/16/09 -- -- 10 dry 2.82 J dry ND ND ug/L 01/04/10 -- -- 10 ND ND ND ND ND ug/L 07/01/10 -- -- 10 dry dry dry ND 3.54 J ug/L 01/13/11 -- -- 10 3.38 J 3.72 J 3.51 J 3.70 J ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry 2.86 B dry 3.18 B 3.13 J ug/L 01/14/13 -- -- 10 ND ND ND ND ND ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 5.40 -- 10 ND ND ND ND ND ug/L 08/12/15 6.80 -- 10 dry ND dry ND ND ug/L 02/17/16 6.80 -- 10 ND ND ND ND ND ug/L 07/14/16 6.80 -- 10 6.91 J ND ND ND ND ug/L 01/11/17 6.80 -- 10 ND ND ND ND ND ug/L 07/11/17 6.80 -- 10 dry dry ND ND ND ug/L 01/09/18 6.80 -- 10 ND ND ND ND ND ug/L 07/26/18 7.60 10 -- dry ND dry ND ND ug/L 01/30/19 7.60 10 -- ND ND ND ND ND ug/L 07/10/19 7.60 10 -- ND ND dry ND ND ug/L 01/30/20 7.60 10 -- ND ND ND ND ND Barium ug/L 10/08/03 -- -- 500 ND ND ND ND ND Human Health Std. = 20,000 ug/L ug/L 01/23/04 -- -- 500 ND ND ND ND ND ug/L 07/08/04 -- -- 500 ND ND ND ND ND ug/L 01/25/05 -- -- 500 ND ND ND ND ND ug/L 07/06/05 -- -- 500 dry ND dry ND ND ug/L 01/09/06 -- -- 500 ND ND ND ND ND ug/L 07/12/06 -- -- 500 ND ND ND ND ND ug/L 01/16/07 -- -- 100 38.7 J 47.6 J 39.5 J 46.0 J 0.90 J ug/L 07/02/07 -- -- 100 dry 62.6 J dry 51.7 J 1.2 J ug/L 01/29/08 -- -- 100 49.8 J 74.1 J 62.2 J 71.2 J 0.3 J ug/L 07/17/08 -- -- 100 dry 67.3 J dry 71.9 J ND ug/L 02/27/09 -- -- 100 36.0 J 39.1 J 52.7 J 46.7 J ND ug/L 07/16/09 -- -- 100 dry 94.5 J dry 84.4 J ND ug/L 01/04/10 -- -- 100 34.0 J 66.2 J 38.0 J 50.3 J 0.552 J ug/L 07/01/10 -- -- 100 dry dry dry 71.0 J ND ug/L 01/13/11 -- -- 100 47.9 J 71.4 J 49.1 J 54.3 J ND ug/L 07/21/11 -- -- 100 dry 87.5 J -- 69.4 J ND ug/L 01/16/12 -- -- 100 37.2 J 37.3 J 54.8 J 47.4 J ND ug/L 07/09/12 -- -- 100 dry 72.4 J dry 55.2 J ND ug/L 01/14/13 -- -- 100 54.6 J 71.2 J 56.4 J 90.0 J 1.46 J ug/L 07/09/13 -- -- 100 73.5 J 58.3 J 63.2 J 46.3 J 1.37 J ug/L 01/30/14 -- -- 100 41.0 J 62.3 J 45.1 J 52.1 J 1.08 J ug/L 07/08/14 -- -- 100 dry 74.4 J dry 61.0 J 1.13 J ug/L 03/03/15 1.00 -- 100 47.0 J 82.6 J 45.8 J 60.9 J 3.04 J ug/L 08/12/15 1.00 -- 100 dry 163 dry 167 2.33 J ug/L 02/17/16 1.00 -- 100 39.3 J 77.0 J 40.9 J 815 ND ug/L 07/14/16 1.00 -- 100 79.0 J 57.3 J 120 76.0 J 1.51 J ug/L 01/11/17 1.00 -- 100 71.4 J 56.2 J 91.0 J 85.3 J ND ug/L 07/11/17 1.00 -- 100 dry dry 80.6 J 58.7 J 1.39 J ug/L 01/09/18 1.00 -- 100 106 101 85.0 J 65.9 J ND ug/L 07/26/18 1.10 10 -- dry 70.9 dry 72.1 ND ug/L 01/30/19 1.10 10 -- 36.5 52.0 39.7 41.8 ND ug/L 07/10/19 1.10 10 -- 77.5 73.1 dry 52.7 2.91 J ug/L 01/30/20 1.10 10 -- 41.3 57.4 44.0 56.4 ND ,> GOLDER 1 of 6 March 2020 20137881.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter MDL MRL Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Beryllium ug/L 01/16/07 -- -- 1 ND ND ND ND ND Freshwater Acute SW Standard = 65 ug/L ug/L 07/02/07 -- -- 1 -- ND -- ND ND Freshwater Chronic SW Standard = 6.5 ug/L ug/L 01/29/08 -- -- 1 ND ND ND ND ND ug/L 07/17/08 -- -- 1 -- ND -- ND ND ug/L 02/27/09 -- -- 1 ND ND ND ND ND ug/L 07/16/09 -- -- 1 dry 0.220 J dry 0.178 J ND ug/L 01/04/10 -- -- 1 ND ND ND ND ND ug/L 07/01/10 -- -- 1 dry dry dry ND ND ug/L 01/13/11 -- -- 1 ND ND ND ND ND ug/L 07/21/11 -- -- 1 dry ND -- ND ND ug/L 01/16/12 -- -- 1 ND ND ND ND ND ug/L 07/09/12 -- -- 1 dry ND dry ND ND ug/L 01/14/13 -- -- 1 ND ND ND ND ND ug/L 07/09/13 -- -- 1 ND ND ND ND ND ug/L 01/30/14 -- -- 1 ND ND ND ND ND ug/L 07/08/14 -- -- 1 dry ND dry ND ND ug/L 03/03/15 0.100 -- 1 ND ND ND ND ND ug/L 08/12/15 0.100 -- 1 dry ND dry ND ND ug/L 02/17/16 0.100 -- 1 ND ND ND 1.58 J ND ug/L 07/14/16 0.100 -- 1 ND ND ND ND ND ug/L 01/11/17 0.100 -- 1 ND ND ND ND ND ug/L 07/11/17 0.130 -- 1 dry dry ND ND ND ug/L 01/09/18 0.130 -- 1 ND ND ND ND ND ug/L 07/26/18 0.160 1 -- dry ND dry ND ND ug/L 01/30/19 0.160 1 -- ND ND ND ND ND ug/L 07/10/19 0.160 1 -- ND ND dry ND ND ug/L 01/30/20 0.160 1 -- ND ND ND ND ND Cadmium ug/L 10/08/03 -- -- 1 ND ND ND ND ND Freshwater Acute SW Standard = 0.82 ug/L ug/L 01/23/04 -- -- 1 ND ND ND ND ND Freshwater Chronic SW Standard = 0.15 ug/L ug/L 07/08/04 -- -- 1 ND ND ND ND ND ug/L 01/25/05 -- -- 1 ND ND ND ND ND ug/L 07/06/05 -- -- 1 dry ND dry ND ND ug/L 01/09/06 -- -- 1 ND ND ND ND ND ug/L 07/12/06 -- -- 1 ND ND ND ND ND ug/L 01/16/07 -- -- 1 ND ND ND ND ND ug/L 07/02/07 -- -- 1 dry ND dry ND ND ug/L 01/29/08 -- -- 1 ND ND ND ND ND ug/L 07/17/08 -- -- 1 dry 0.40 J dry ND ND ug/L 02/27/09 -- -- 1 ND ND ND ND ND ug/L 07/16/09 -- -- 1 dry 0.134 B dry 0.442 B 1.19 ug/L 01/04/10 -- -- 1 0.317 J 0.230 J 0.830 J 0.143 J ND ug/L 07/01/10 -- -- 1 dry dry dry ND ND ug/L 01/13/11 -- -- 1 ND ND ND ND ND ug/L 07/21/11 -- -- 1 dry ND -- ND ND ug/L 01/16/12 -- -- 1 ND ND ND ND ND ug/L 07/09/12 -- -- 1 dry ND dry ND ND ug/L 01/14/13 -- -- 1 ND ND ND ND ND ug/L 07/09/13 -- -- 1 ND ND ND ND ND ug/L 01/30/14 -- -- 1 ND ND ND ND ND ug/L 07/08/14 -- -- 1 dry ND dry ND ND ug/L 03/03/15 0.360 -- 1 ND ND ND ND ND ug/L 08/12/15 0.360 -- 1 dry ND dry ND ND ug/L 02/17/16 0.360 -- 1 ND ND ND ND ND ug/L 07/14/16 0.360 -- 1 ND ND ND ND ND ug/L 01/11/17 0.360 -- 1 ND ND ND ND ND ug/L 07/11/17 0.360 -- 1 dry dry ND ND ND ug/L 01/09/18 0.360 -- 1 ND ND ND ND ND ug/L 07/26/18 0.360 1 -- dry ND dry ND ND ug/L 01/30/19 0.360 1 -- ND ND ND ND ND ug/L 07/10/19 0.360 1 -- ND ND dry ND ND ug/L 01/30/20 0.360 1 -- ND ND ND ND ND Chromium ug/L 10/08/03 -- -- 10 ND ND ND ND ND Freshwater Acute SW Standard = 180 ug/L ug/L 01/23/04 -- -- 10 ND ND ND ND ND Freshwater Chronic SW Standard = 24 ug/L ug/L 07/08/04 -- -- 10 ND ND ND ND ND ug/L 01/25/05 -- -- 10 ND ND ND ND ND ug/L 07/06/05 -- -- 10 -- ND -- ND ND ug/L 01/09/06 -- -- 10 ND ND ND ND ND ug/L 07/12/06 -- -- 10 ND ND ND ND ND ug/L 01/16/07 -- -- 10 ND ND ND ND ND ug/L 07/02/07 -- -- 10 -- ND -- ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 -- ND -- ND ND ug/L 02/27/09 -- -- 10 ND ND ND ND ND ug/L 07/16/09 -- -- 10 dry 8.45 J dry 5.87 J ND ug/L 01/04/10 -- -- 10 ND 2.49 J ND ND ND ug/L 07/01/10 -- -- 10 dry dry dry 1.37 B 1.80 J ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND 2.35 J 1.42 J ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 1.69 B 2.92 B ND 6.53 B 1.40 J ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 1.40 -- 10 ND 6.99 B ND 4.03 B 1.66 J ug/L 08/12/15 1.40 -- 10 dry 58.2 dry 43.7 ND ug/L 02/17/16 1.40 -- 10 ND 13.8 ND 343 ND ug/L 07/14/16 1.40 -- 10 ND ND 7.29 J ND ND ug/L 01/11/17 1.40 -- 10 ND ND 3.08 J 2.12 J ND ug/L 07/11/17 1.40 -- 10 dry dry ND ND ND ug/L 01/09/18 1.40 -- 10 ND ND ND ND ND ug/L 07/26/18 1.40 10 -- dry 1.49 J dry 1.52 J ND ug/L 01/30/19 1.40 10 -- ND ND ND ND ND ug/L 07/10/19 1.40 10 -- ND ND dry ND ND ug/L 01/30/20 1.40 10 -- ND ND ND ND ND ,> GOLDER 2of6 March 2020 20137881.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter MDL MRL Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Cobalt ug/L 01/16/07 -- -- 10 ND ND ND ND ND Human Health Std. = 4.0 ug/L ug/L 07/02/07 -- -- 10 -- ND -- ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 -- ND -- ND ND ug/L 02/27/09 -- -- 10 2.0 J ND ND ND ND ug/L 07/16/09 -- -- 10 dry 1.96 J dry 1.69 J ND ug/L 01/04/10 -- -- 10 0.961 J 2.050 J 0.97 J 1.65 J ND ug/L 07/01/10 -- -- 10 dry dry dry 1.18 J ND ug/L 01/13/11 -- -- 10 1.15 J ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 1.59 J 1.77 J ND 4.73 J ND ug/L 07/09/13 -- -- 10 1.50 J ND ND ND ND ug/L 01/30/14 -- -- 10 ND 1.58 J 1.27 J 1.91 J ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 1.10 -- 10 ND 2.65 J ND 1.35 J ND ug/L 08/12/15 1.10 -- 10 dry 20.2 dry 17.8 ND ug/L 02/17/16 1.10 -- 10 1.18 J 6.32 J 1.36 J 168 ND ug/L 07/14/16 1.10 -- 10 1.34 J ND 2.94 J ND ND ug/L 01/11/17 1.10 -- 10 ND ND 1.95 J 1.82 J ND ug/L 07/11/17 1.10 -- 10 dry dry ND ND ND ug/L 01/09/18 1.10 -- 10 ND ND ND ND ND ug/L 07/26/18 1.40 10 -- dry ND dry ND ND ug/L 01/30/19 1.40 10 -- ND ND ND ND ND ug/L 07/10/19 1.40 10 -- 2.65 J ND dry ND ND ug/L 01/30/20 1.40 10 -- ND 1.63 J ND 1.88 J ND Copper ug/L 01/16/07 -- -- 10 ND 1.50 J 1.00 J ND ND Freshwater Acute SW Standard = 3.6 ug/L ug/L 07/02/07 -- -- 10 dry ND dry ND ND Freshwater Chronic SW Standard = 2.7 ug/L ug/L 01/29/08 -- -- 10 1.00 J 1.20 J ND 1.10 J ND ug/L 07/17/08 -- -- 10 dry ND dry 1.90 J ND ug/L 02/27/09 -- -- 10 1.90 J ND 1.80 J ND ND ug/L 07/16/09 -- -- 10 dry 7.67 B dry 5.37 B 6.42 J ug/L 01/04/10 -- -- 10 2.39 J 4.12 J ND 2.06 J ND ug/L 07/01/10 -- -- 10 dry dry dry ND ND ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry 1.69 B -- 1.62 B 1.65 J ug/L 01/16/12 -- -- 10 ND ND 2.89 J ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 5.01 J 4.24 J ND 13.4 ND ug/L 07/09/13 -- -- 10 1.63 J 2.44 J ND 2.28 J ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry 1.63 J ND ug/L 03/03/15 1.60 -- 10 3.91 J 10.4 3.79 J 8.05 J ND ug/L 08/12/15 1.60 -- 10 dry 52.4 dry 43.3 ND ug/L 02/17/16 1.60 -- 10 4.03 B 14.4 B 2.76 B 357 3.66 J ug/L 07/14/16 1.60 -- 10 ND ND 7.98 B 2.96 B 3.50 J ug/L 01/11/17 1.60 -- 10 6.07 B 4.16 B 7.82 B 7.32 B 6.33 J ug/L 07/11/17 1.60 -- 10 dry dry 2.29 J 1.73 J ND ug/L 01/09/18 1.60 -- 10 ND ND ND ND ND ug/L 07/26/18 1.60 10 -- dry 2.50 B dry 1.64 B 2.02 J ug/L 01/30/19 1.60 10 -- 3.48 J 2.94 J ND 2.59 J ND ug/L 07/10/19 1.60 10 -- 2.12 B 3.28 B dry 2.96 B 3.52 J ug/L 01/30/20 1.60 10 -- 4.14 J 2.56 J 1.77 J 2.01 J ND Lead ug/L 10/08/03 -- -- 10 ND ND ND ND ND Freshwater Acute SW Standard = 14 ug/L ug/L 01/23/04 -- -- 10 ND ND ND ND ND Freshwater Chronic SW Standard = 0.54 ug/L ug/L 07/08/04 -- -- 10 ND ND ND ND ND ug/L 01/25/05 -- -- 10 ND ND ND ND ND ug/L 07/06/05 -- -- 10 dry ND dry ND ND ug/L 01/09/06 -- -- 10 ND ND ND ND ND ug/L 07/12/06 -- -- 10 ND ND ND ND ND ug/L 01/16/07 -- -- 10 4.6 J ND 2.6 J 3.6 J ND ug/L 07/02/07 -- -- 10 dry ND dry ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 dry ND dry ND ND ug/L 02/27/09 -- -- 10 ND ND ND ND ND ug/L 07/16/09 -- -- 10 dry 4.30 J dry 4.68 J ND ug/L 01/04/10 -- -- 10 1.68 B 4.41 B ND ND 1.24 J ug/L 07/01/10 -- -- 10 dry dry dry 2.56 J ND ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- 2.32 J ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 ND ND ND 3.58 J ND ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 2.10 -- 10 ND ND ND ND ND ug/L 08/12/15 3.10 -- 10 dry 15.7 dry 14.8 ND ug/L 02/17/16 3.10 -- 10 ND ND ND 32.5 J ND ug/L 07/14/16 3.10 -- 10 ND ND ND ND ND ug/L 01/11/17 3.10 -- 10 ND ND ND ND ND ug/L 07/11/17 3.10 -- 10 dry dry ND ND ND ug/L 01/09/18 3.10 -- 10 ND ND ND ND ND ug/L 07/26/18 3.10 10 -- dry ND dry ND ND ug/L 01/30/19 3.10 10 -- ND ND ND ND ND ug/L 07/10/19 3.10 10 -- ND ND dry ND ND ug/L 01/30/20 3.10 10 -- ND ND ND ND ND ,> GOLDER 3 of 6 March 2020 20137881.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter MDL MRL Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Nickel ug/L 01/16/07 -- -- 50 2.9 1 ND ND ND ND Freshwater Acute Standard = 140 ug/L ug/L 07/02/07 -- -- 50 dry ND dry 1.7 1 ND Freshwater Chronic Standard = 16 ug/L ug/L 01/29/08 -- -- 50 4.8 1 ND ND ND ND ug/L 07/17/08 -- -- 50 dry ND dry ND ND ug/L 02/27/09 -- -- 50 2.4 1 ND ND ND ND ug/L 07/16/09 -- -- 50 dry 3.92 B dry 3.42 B 3.80 1 ug/L 01/04/10 -- -- 50 ND ND ND ND ND ug/L 07/01/10 -- -- 50 dry dry dry ND ND ug/L 01/13/11 -- -- 50 ND ND ND ND ND ug/L 07/21/11 -- -- 50 dry ND -- ND ND ug/L 01/16/12 -- -- 50 ND ND ND ND ND ug/L 07/09/12 -- -- 50 dry ND dry ND ND ug/L 01/14/13 -- -- 50 2.29 1 ND ND 2.84 1 ND ug/L 07/09/13 -- -- 50 1.91 1 ND ND ND ND ug/L 01/30/14 -- -- 50 ND ND ND ND ND ug/L 07/08/14 -- -- 50 dry ND dry ND ND ug/L 03/03/15 1.80 -- 50 ND 3.67 1 ND ND ND ug/L 08/12/15 1.80 -- 50 dry 29.9 1 dry 25.3 1 ND ug/L 02/17/16 1.80 -- 50 ND 8.79 1 ND 230 ND ug/L 07/14/16 2.20 -- 50 3.23 B ND 5.87 B 2.24 B 11.9 1 ug/L 01/11/17 2.20 -- 50 2.60 1 ND 3.47 1 3.28 1 ND ug/L 07/11/17 2.20 -- 50 dry dry ND ND ND ug/L 01/09/18 2.20 -- 50 ND ND ND 2.34 1 ND ug/L 07/26/18 2.20 10 -- dry 2.25 1 dry 2.83 1 ND ug/L 01/30/19 2.20 10 -- ND ND ND ND ND ug/L 07/10/19 2.20 10 -- ND ND dry ND ND ug/L 01/30/20 2.20 10 -- 2.26 1 ND ND ND ND Selenium ug/L 10/08/03 -- -- 20 ND ND ND ND ND Freshwater Acute SW Standard = 5 ug/L ug/L 01/23/04 -- -- 20 ND ND ND ND ND Freshwater Chronic SW Standard = 5 ug/L ug/L 07/08/04 -- -- 20 ND ND ND ND ND ug/L 01/25/05 -- -- 20 ND ND ND ND ND ug/L 07/06/05 -- -- 20 -- ND -- ND ND ug/L 01/09/06 -- -- 20 ND ND ND ND ND ug/L 07/12/06 -- -- 20 ND ND ND ND ND ug/L 01/16/07 -- -- 10 ND ND ND ND ND ug/L 07/02/07 -- -- 10 -- ND -- ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 -- ND -- ND ND ug/L 02/27/09 -- -- 10 4.7 1 ND 5.8 J ND ND ug/L 07/16/09 -- -- 10 dry ND dry ND ND ug/L 01/04/10 -- -- 10 ND ND ND ND ND ug/L 07/01/10 -- -- 10 dry dry dry ND ND ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 ND ND ND ND ND ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 5.00 -- 10 ND ND ND ND ND ug/L 08/12/15 5.00 -- 10 dry ND dry ND ND ug/L 02/17/16 5.00 -- 10 ND ND ND ND ND ug/L 07/14/16 6.20 -- 10 ND ND ND ND ND ug/L 01/11/17 6.20 -- 10 ND ND ND ND ND ug/L 07/11/17 6.20 -- 10 dry dry ND ND ND ug/L 01/09/18 6.20 -- 10 ND ND ND ND ND ug/L 07/26/18 6.20 10 -- dry ND dry ND ND ug/L 01/30/19 6.20 10 -- ND ND ND ND ND ug/L 07/10/19 6.20 10 -- ND ND dry ND ND ug/L 01/30/20 6.20 10 -- ND ND ND ND ND Silver ug/L 10/08/03 -- -- 10 ND ND ND ND ND Freshwater Acute Standard = 30 ug/L ug/L 01/23/04 -- -- 10 ND ND ND ND ND Freshwater Chronic Standard = 0.06 ug/L ug/L 07/08/04 -- -- 10 ND ND ND ND ND ug/L 01/25/05 -- -- 10 ND ND ND ND ND ug/L 07/06/05 -- -- 10 -- ND -- ND ND ug/L 01/09/06 -- -- 10 ND ND ND ND ND ug/L 07/12/06 -- -- 10 ND ND ND ND ND ug/L 01/16/07 -- -- 10 ND ND ND ND ND ug/L 07/02/07 -- -- 10 -- ND -- ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 -- ND -- ND ND ug/L 02/27/09 -- -- 10 ND ND ND ND ND ug/L 07/16/09 -- -- 10 dry ND dry ND ND ug/L 01/04/10 -- -- 10 ND ND ND ND ND ug/L 07/01/10 -- -- 10 dry dry dry ND ND ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 ND ND ND ND ND ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 1.90 -- 10 ND ND ND ND ND ug/L 08/12/15 1.90 -- 10 dry ND dry ND 2.59 1 ug/L 02/17/16 1.90 -- 10 ND ND ND ND ND ug/L 07/14/16 1.90 -- 10 ND ND ND ND ND ug/L 01/11/17 1.90 -- 10 ND ND ND ND ND ug/L 07/11/17 1.90 -- 10 dry dry ND ND ND ug/L 01/09/18 1.90 -- 10 1.92 1 2.26 1 1.96 J ND ND ug/L 07/26/18 1.90 10 -- dry ND dry ND ND ug/L 01/30/19 1.90 10 -- ND ND ND ND ND ug/L 07/10/19 1.90 10 -- ND ND dry ND ND ug/L 01/30/20 1.90 10 -- ND ND ND ND ND ,> GOLDER 4of6 March 2020 20137881.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter MDL MRL Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Thallium ug/L 01/16/07 -- -- 5.5 ND ND ND ND ND Human Health Std. = 0.47 ug/L ug/L 07/02/07 -- -- 5.5 dry ND dry ND ND ug/L 01/29/08 -- -- 5.5 ND ND 0.041 J ND ND ug/L 07/17/08 -- -- 5.5 dry ND dry ND ND ug/L 02/27/09 -- -- 5.5 ND ND ND ND ND ug/L 07/16/09 -- -- 5.5 dry ND dry ND ND ug/L 01/04/10 -- -- 5.5 ND ND ND ND ND ug/L 07/01/10 -- -- 5.5 dry dry dry ND ND ug/L 01/13/11 -- -- 5.5 ND ND ND ND ND ug/L 07/21/11 -- -- 5.5 dry ND -- ND ND ug/L 01/16/12 -- -- 5.5 ND ND ND ND ND ug/L 07/09/12 -- -- 5.5 dry ND dry ND ND ug/L 01/14/13 -- -- 5.5 ND ND ND ND ND ug/L 07/09/13 -- -- 5.5 ND ND ND ND ND ug/L 01/30/14 -- -- 5.5 ND ND ND ND ND ug/L 07/08/14 -- -- 5.5 dry ND dry ND ND ug/L 03/03/15 0.110 -- 5.5 ND ND ND ND ND ug/L 08/12/15 0.110 -- 5.5 dry ND dry ND ND ug/L 02/17/16 0.110 -- 5.5 ND ND ND ND ND ug/L 07/14/16 0.110 -- 5.5 0.270 J 0.313 J 0.323 J 0.315 J ND ug/L 01/11/17 0.110 -- 5.5 ND ND ND ND ND ug/L 07/11/17 0.110 -- 5.5 dry dry 0.117 J ND ND ug/L 01/09/18 0.050 -- 5.5 ND ND ND ND ND ug/L 07/26/18 0.550 5 -- dry ND dry ND ND ug/L 01/30/19 0.220 2 -- ND 0.230 J ND ND ND ug/L 07/10/19 0.220 2 -- ND ND dry ND ND ug/L 01/30/20 0.220 2 -- ND ND ND ND ND Vanadium ug/L 01/16/07 -- -- 25 ND ND ND ND ND (No SW Standard) ug/L 07/02/07 -- -- 25 dry 2.1 J dry 2.6 J ND ug/L 01/29/08 -- -- 25 ND ND ND ND ND ug/L 07/17/08 -- -- 25 dry ND dry 1.7 J ND ug/L 02/27/09 -- -- 25 ND ND ND ND ND ug/L 07/16/09 -- -- 25 dry 23.4 J dry 16.1 J ND ug/L 01/04/10 -- -- 25 1.27 J 7.24 J 0.821 J 4.46 J ND ug/L 07/01/10 -- -- 25 dry dry dry 4.33 J ND ug/L 01/13/11 -- -- 25 ND ND ND ND ND ug/L 07/21/11 -- -- 25 dry 2.31 J -- 2.39 J ND ug/L 01/16/12 -- -- 25 1.52 J 1.79 J 7.01 J 4.69 J ND ug/L 07/09/12 -- -- 25 dry ND dry 1.81 J ND ug/L 01/14/13 -- -- 25 3.46 J 6.21 J ND 14.0 J ND ug/L 07/09/13 -- -- 25 ND 2.85 J ND 2.79 J ND ug/L 01/30/14 -- -- 25 ND 1.53 J ND 2.17 J ND ug/L 07/08/14 -- -- 25 dry 2.53 J dry 3.14 J ND ug/L 03/03/15 1.40 -- 25 ND 17.3 J ND 8.48 J ND ug/L 08/12/15 1.40 -- 25 dry 155 dry 118 ND ug/L 02/17/16 1.40 -- 25 ND 35.2 ND 853 ND ug/L 07/14/16 1.40 -- 25 ND ND 19.8 J 4.62 J ND ug/L 01/11/17 1.40 -- 25 ND ND 7.90 J 6.16 J ND ug/L 07/11/17 1.40 -- 25 dry dry ND ND ND ug/L 01/09/18 1.40 -- 25 ND ND ND ND ND ug/L 07/26/18 1.40 10 -- dry 5.34 J dry 4.65 J ND ug/L 01/30/19 1.40 10 -- 1.76 J 1.91 J ND 1.60 J ND ug/L 07/10/19 1.40 10 -- 3.82 J 1.47 J dry 1.52 J ND ug/L 01/30/20 1.40 10 -- 1.49 J 1.51 J ND 1.91 J ND Zinc ug/L 01/16/07 -- -- 10 27.0 B 9.5 B 27.1 B 4.2 B 10.0 Freshwater Acute SW Standard = 36 ug/L ug/L 07/02/07 -- -- 10 dry ND dry 7.6 J ND Freshwater Chronic SW Standard = 36 ug/L ug/L 01/29/08 -- -- 10 112 10.6 26.9 6.8 B 1.6 J ug/L 07/17/08 -- -- 10 dry 3.8 J dry 4.1 J ND ug/L 02/27/09 -- -- 10 29.8 13.8 7.8 J 13.2 ND ug/L 07/16/09 -- -- 10 dry 14.0 B dry 26.9 B 20.5 ug/L 01/04/10 -- -- 10 24.0 11.9 15.3 7.12 B 2.25 J ug/L 07/01/10 -- -- 10 dry dry dry 8.81 J ND ug/L 01/13/11 -- -- 10 32.6 ND 7.26 J ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 23.1 11.2 7.09 J ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 31.4 7.14 J 4.15 J 21.7 ND ug/L 07/09/13 -- -- 10 9.74 J ND ND ND ND ug/L 01/30/14 -- -- 10 33.7 9.78 J 17.5 7.46 J ND ug/L 07/08/14 -- -- 10 dry ND dry 3.89 J ND ug/L 03/03/15 3.80 -- 10 36.9 20.7 19.5 10.6 ND ug/L 08/12/15 3.80 -- 10 dry 53.6 dry 55.1 ND ug/L 02/17/16 3.80 -- 10 16.7 20.1 14.4 306 ND ug/L 07/14/16 4.40 -- 10 6.34 J ND 5.57 J ND ND ug/L 01/11/17 4.40 -- 10 40.6 4.95 J 11.8 10.1 ND ug/L 07/11/17 4.40 -- 10 dry dry ND ND ND ug/L 01/09/18 4.40 -- 10 17.8 4.49 J ND ND ND ug/L 07/26/18 4.40 10 -- dry 11.9 dry 8.19 J ND ug/L 01/30/19 4.40 10 -- 17.4 6.13 J 10.1 ND ND ug/L 07/10/19 4.40 10 -- 7.32 J ND dry ND ND ug/L 01/30/20 4.40 10 -- 34.8 6.41 J 12.1 4.85 J ND ,> GOLDER 5 of 6 March 2020 20137881.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter Units Date MDL MRL Limit Blanks SW-1 SW-3 SW-2 SW-4 Acetone ug/L 01/29/08 -- -- 100 ND ND ND ND ND Freshwater Aquatic Std. = 2,000 ug/L ug/L 07/17/08 -- -- 100 -- ND -- ND ND ug/L 02/27/09 -- -- 100 ND ND ND ND ND ug/L 07/16/09 -- -- 100 dry ND dry ND ND ug/L 01/04/10 -- -- 100 ND ND ND ND 7.1 J ug/L 07/01/10 -- -- 100 dry dry dry ND ND ug/L 01/13/11 -- -- 100 ND ND ND ND ND ug/L 07/21/11 -- -- 100 dry ND -- ND ND ug/L 01/16/12 -- -- 100 ND ND ND ND ND ug/L 07/09/12 -- -- 100 dry ND dry ND ND ug/L 01/14/13 -- -- 100 ND ND ND ND ND ug/L 07/09/13 -- -- 100 ND ND ND ND ND ug/L 01/30/14 -- -- 100 ND ND ND ND ND ug/L 07/08/14 -- -- 100 dry ND dry ND ND ug/L 03/03/15 1.2 -- 100 ND 9.6 J ND 3.6 J ND ug/L 08/12/15 1.2 -- 100 dry ND dry ND ND ug/L 02/17/16 1.2 -- 100 ND ND ND ND ND ug/L 07/14/16 10 -- 100 ND ND ND ND ND ug/L 01/11/17 10 -- 100 ND ND ND ND 11 J ug/L 07/11/17 10 -- 100 dry dry ND ND ND ug/L 01/09/18 10 -- 100 ND ND ND ND 17 J ug/L 07/26/18 10 20 -- dry ND dry ND ND ug/L 01/30/19 10 20 -- ND ND ND ND ND ug/L 07/10/19 10 20 -- ND ND dry ND ND ug/L 01/30/20 10 20 -- ND ND ND ND ND 2-Butanone ug/L 01/29/08 -- -- 100 ND ND ND ND ND Human Health Std. = 750,000 ug/L ug/L 07/17/08 -- -- 100 -- ND -- ND ND ug/L 02/27/09 -- -- 100 ND ND ND ND ND ug/L 07/16/09 -- -- 100 dry ND dry ND ND ug/L 01/04/10 -- -- 100 ND ND ND ND ND ug/L 07/01/10 -- -- 100 dry dry dry ND ND ug/L 01/13/11 -- -- 100 ND ND ND ND ND ug/L 07/21/11 -- -- 100 dry ND -- ND ND ug/L 01/16/12 -- -- 100 ND ND ND ND ND ug/L 07/09/12 -- -- 100 dry ND dry ND ND ug/L 01/14/13 -- -- 100 ND ND ND ND ND ug/L 07/09/13 -- -- 100 ND ND ND ND ND ug/L 01/30/14 -- -- 100 ND ND ND ND ND ug/L 07/08/14 -- -- 100 dry ND dry ND ND ug/L 03/03/15 1.3 -- 100 ND 3.9 J ND ND ND ug/L 08/12/15 1.3 -- 100 dry ND dry ND ND ug/L 02/17/16 1.3 -- 100 ND ND ND ND ND ug/L 07/14/16 1.3 -- 100 ND ND ND ND ND ug/L 01/11/17 1.3 -- 100 ND ND ND ND ND ug/L 07/11/17 1.3 -- 100 dry dry ND ND ND ug/L 01/09/18 1.3 -- 100 ND ND ND ND ND ug/L 07/26/18 1.3 5 -- dry ND dry ND ND ug/L 01/30/19 1.3 5 -- ND ND ND ND ND ug/L 07/10/19 1.3 5 -- ND ND dry ND ND ug/L 01/30/20 1.3 5 -- ND ND ND ND ND 1,4-Dioxane (Human Health Std. = 0.35 ug/L) ug/L 07/26/18 1.2 2 -- dry 5.4 dry 5.2 ND ug/L 01/30/19 1.2 2 -- ND 4.5 2.1 3.4 ND ug/L 07/10/19 1.2 2 -- ND 8.0 dry 4.3 ND ug/L 1 01/30/20 1 1.2 1 2 1-- ND 3.1 1.6 J 4.1 1 ND Notes: 1. SW = surface water monitoring point 2. ug/L = micrograms per liter 3. J = Prior to the 07/18 event, J flags are estimated values below the SWS Reporting limit. Beginning with the 07/18 event, J flags are estimated values between MDL and PQL. 4. B = blank -qualified data 5. ND = not detected at or above the stated reporting limit 6. Surface Water Standards for NC Appendix I constituents based on Class C Freshwater Aquatic Life stream classification per 15A NCAC 2B. 7. (AL) = SW Standard is an action level 8. (N) = SW Standard is a narrative standard 9. --- = no data available 10. Bold = concentrations above Human Health or Chronic Surface Water Standard 11. Shaded and Bold = concentration above Acute and Chronic Surface Water Standards 12. Blanks = field, trip and laboratory blanks. 13. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/18/07 14. Data prior to 01/09/06 provided by Joyce Engineering, Inc. 15. The following dilutions were noted for the January 2020 event: Antimony/Thallium 2x all SW points ,,,> GOLDER 6 of 6 March 2020 20137881.101 TABLE 7 Summary of Field Parameters in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upstream Downstream Parameter SWA SW-3 SW-2 SW-4 Units Date pH (Field) S.U. 07/06/05 -- 6.49 -- 7.02 S.U. 01/09/06 6.70 6.45 6.01 6.72 S.U. 07/12/06 6.28 6.38 5.86 6.78 S.U. 01/16/07 7.44 6.10 6.02 6.35 S.U. 07/02/07 dry 6.95 dry 8.19 S.U. 01/29/08 5.96 5.76 5.91 6.36 S.U. 07/17/08 dry 7.24 dry 7.20 S.U. 01/14/09 6.63 6.74 6.37 6.98 S.U. 07/16/09 dry 6.65 dry 7.39 S.U. 01/04/10 6.43 6.00 5.62 6.72 S.U. 07/01/10 dry dry dry 7.62 S.U. 01/13/11 5.84 6.69 6.30 6.86 S.U. 07/21/11 dry 6.80 -- 7.35 S.U. 01/16/12 7.12 6.30 5.95 7.31 S.U. 07/09/12 dry 6.64 dry 7.07 S.U. 01/14/13 6.64 7.01 6.51 7.15 S.U. 07/09/13 5.33 6.40 6.23 6.31 S.U. 01/30/14 7.13 6.50 6.12 7.45 S.U. 07/08/14 dry 6.77 dry 7.53 S.U. 03/03/15 7.16 6.54 6.03 6.90 S.U. 08/12/15 dry 5.99 dry 8.74 S.U. 02/17/16 5.81 6.06 5.85 7.53 S.U. 07/14/16 6.30 6.06 6.97 7.54 S.U. 01/11/17 5.24 5.64 5.43 5.86 S.U. 07/11/17 dry 7.05 dry 7.48 S.U. 01/09/18 6.03 6.61 6.78 7.86 S.U. 07/27/18 dry 7.86 dry 7.72 S.U. 01/30/19 6.82 7.29 7.37 7.54 S.U. 07/10/19 6.28 7.04 dry 7.58 S.U. 01/30/20 6.95 7.57 7.79 7.81 Specific Conductance (Field) US/cm 07/06/05 -- 407 -- 366 US/cm 01/09/06 123 143 155 110 us/cm 07/12/06 175 258 237 213 US/cm 01/16/07 124 184 120 162 US/cm 07/02/07 dry 298 dry 143 US/cm 01/29/08 343 390 311 416 US/cm 07/17/08 dry 317 dry 316 US/cm 01/14/09 160 159 200 183 US/cm 07/16/09 dry 257 dry 255 US/cm 01/04/10 159 216 159 194 US/cm 07/01/10 dry dry dry 333 us/cm 01/13/11 378 419 270 340 US/cm 07/21/11 dry 349 -- 245 US/cm 01/16/12 159 182 162 159 US/cm 07/09/12 dry 380 dry 311 US/cm 01/14/13 218 286 282 264 us/cm 07/09/13 432 268 313 240 US/cm 01/30/14 234 275 239 221 US/cm 07/08/14 dry 399 dry 314 us/cm 03/03/15 264 198 254 197 US/cm 08/12/15 dry 140 dry 138 US/cm 02/17/16 155 181 165 117 us/cm 07/14/16 312 284 307 314 US/cm 01/11/17 326 336 253 302 US/cm 07/11/17 dry 349 dry 258 US/cm 01/09/18 320 330 518 346 US/cm 07/27/18 dry 306 dry 311 US/cm 01/30/19 114 167 213 170 US/cm 07/10/19 207 297 dry 232 uS/cm 01/29/20 136 238 218 263 GOLDER 1of3 March 2020 20137881.101 TABLE 7 Summary of Field Parameters in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upstream Downstream Parameter SWA SW-3 SW-2 SW-4 Units Date Temperature (Field) 0C 07/06/05 dry 23.3 dry 24.6 °C 01/09/06 10.78 7.15 7.30 9.61 °C 07/12/06 19.96 22.28 22.51 23.03 °C 01/16/07 10.70 11.80 11.60 11.50 °C 07/02/07 dry 20.87 dry 23.49 °C 01/29/08 8.39 6.21 6.93 6.99 °C 07/17/08 dry 20.94 dry 19.01 °C 01/14/09 6.17 5.63 4.98 4.78 °C 07/16/09 dry 20.68 dry 20.93 °C 01/04/10 3.37 1.19 1.43 1.63 °C 07/01/10 dry dry dry 18.27 °C 01/13/11 3.22 1.08 0.97 1.70 °C 07/21/11 dry 23.70 -- 27.15 °C 01/16/12 5.21 5.58 5.91 6.30 °C 07/09/12 dry 23.77 dry 28.19 °C 01/14/13 12.1 12.8 12.9 12.9 °C 07/09/13 21.03 23.01 23.06 25.16 " C 01 /30/14 0.90 0.70 0.60 0.40 VC 07/08/14 dry 22.4 dry 24.0 VC 03/03/15 5.01 6.61 5.31 5.70 "C 08/12/15 dry 21.7 dry 24.1 °C 02/17/16 6.5 4.9 5.1 8.3 °C 07/14/16 23.5 23.8 23.2 26.3 °C 01/11/17 5.6 4.5 5.2 4.0 "C 07/11/17 dry 22.8 dry 24.0 °C 01/09/18 7.0 1.0 0.6 0.4 °C 07/27/18 dry 21.7 dry 22.2 °C 01/30/19 5.4 1.9 1.8 4.9 °C 07/10/19 23.2 12.2 dry 25.7 °C 01/29/20 6.7 6.5 6.8 8.3 Turbidity (Field) NTU 07/06/05 dry 15.5 dry 17.2 NTU 01/09/06 dry 61.3 dry 68.4 NTU 07/12/06 134 dry dry 5.1 NTU 01/16/07 5.8 37.7 39.5 32.3 NTU 07/02/07 dry 27.1 dry 124 NTU 01/29/08 3.4 100.0 15.2 94.9 NTU 07/17/08 dry 16.2 dry 17.7 NTU 01/14/09 12.6 8.87 16.6 15.2 NTU 07/16/09 dry 194 dry 125 NTU 01/04/10 10.2 33.2 18.7 54.7 NTU 07/01/10 dry dry dry 68.2 NTU 01/13/11 20.2 18.6 25.3 11.2 NTU 07/21/11 dry 19.8 -- 18.5 NTU 01/16/12 10.2 52.9 16.9 38.4 NTU 07/09/12 dry 23.7 dry 28.1 NTU 01/14/13 63.1 51.5 11.8 169 NTU 07/09/13 31.6 24.5 11.5 23.8 NTU 01/30/14 12.0 16.8 7.02 23.2 NTU 07/08/14 dry 15.3 dry 25.8 NTU 03/03/15 9.24 122 12.4 75.1 NTU 08/12/15 dry 927 dry >1000 NTU 02/17/16 13.9 212 13.1 >1000 NTU 07/14/16 23.2 122 12.1 25.0 NTU 01/11/17 28.4 58.5 7.09 68.1 NTU 07/11/17 dry 6.13 dry 5.29 NTU 01/09/18 6.82 5.43 2.48 4.85 NTU 07/27/18 dry 57.8 dry 63.6 NTU 01/30/19 20.3 13.0 15.5 16.3 NTU 07/10/19 49.2 8.91 dry 11.2 NTU 01/29/20 11.7 14.8 10.8 14.5 GOLDER 2of3 March 2020 20137881.101 TABLE 7 Summary of Field Parameters in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upstream Downstream Parameter SWA SW-3 SW-2 SW-4 Units Date Oxidation Reduction my 01/29/08 165 202 214 182 Potential (Field) my 07/17/08 dry 75 dry 76 my 01/14/09 92.8 113.6 139.6 156.6 my 07/16/09 dry 126.1 dry 45.5 my 01/04/10 82.5 122.6 176.4 5.8 my 07/01/10 dry dry dry 140.9 my 01/13/11 141.9 191.8 224.4 145.8 my 07/21/11 dry 45.8 -- 55.8 my 01/16/12 31.9 137.1 218.6 64.6 my 07/09/12 dry -7.3 dry -4.3 my 01/14/13 -- -- -- -- mv 07/09/13 67.0 33.4 21.1 71.7 my 01/30/14 18.1 31.7 96.4 -3.0 my 07/08/14 dry 43.0 dry 280.2 my 03/03/15 -0.8 131.9 143.9 73.2 my 08/12/15 dry 32.0 dry 47.6 my 02/17/16 140.1 184.6 240.4 288.2 my 07/14/16 -12.1 70.1 92.7 81.1 my 01/11/17 201.6 226.5 250.6 216.9 my 07/11/17 dry 103.0 dry 140.1 my 01/09/18 -- -- -- 234.1 my 07/27/18 dry 9.0 dry 126.3 my 01/30/19 -14.3 54.9 51.7 32.1 my 07/10/19 72.2 122.6 dry 97.5 my 01/29/20 191.7 210.3 203.4 -95.5 Dissolved Oxygen (Field) mg/L 01/29/08 11.03 11.61 11.13 11.98 mg/L 07/17/08 dry 3.33 dry 7.08 mg/L 01/14/09 11.52 12.78 13.94 13.96 mg/L 07/16/09 dry 6.33 dry 7.76 mg/L 01/04/10 12.43 14.99 15.13 15.05 mg/L 07/01/10 dry dry dry 8.71 mg/L 01/13/11 6.81 15.62 15.94 16.10 mg/L 07/21/11 dry 5.70 -- 5.41 mg/L 01/16/12 10.68 13.44 14.39 13.62 mg/L 07/09/12 dry 7.00 dry 9.31 mg/L 01/14/13 -- -- -- -- mg/L 07/09/13 5.31 7.12 5.97 8.51 mg/L 01/30/14 12.43 13.28 14.04 14.86 mg/L 07/08/14 dry 6.05 dry 8.06 mg/L 03/03/15 9.90 11.23 11.65 11.50 mg/L 08/12/15 dry 8.96 dry 8.50 mg/L 02/17/16 8.95 9.52 7.83 10.03 mg/L 07/14/16 2.91 5.55 5.71 6.45 mg/L 01/11/17 9.64 11.55 10.44 12.71 mg/L 07/11/17 dry 6.08 dry 6.01 mg/L 01 /09/18 -- -- -- 12.68 mg/L 07/27/18 dry 6.08 dry 5.19 mg/L 01/30/19 10.90 13.18 12.95 12.53 mg/L 07/10/19 1.24 6.30 dry 5.70 mg/L 01 /29/20 9.86 9.94 9.10 9.10 Notes: 1. SW = surface water monitoring point 2. mg/L = milligrams per liter 3. S.U. = Standard Units 4. NTU = Nephelometric Turbidity Units 5. uS = microsiemens 6. -- = no data available 7. Data prior to 01/09/06 provided by Joyce Engineering, Inc. GOLDER 3of3 Drawing 3 0 0 N 0 00 00 r` 0 N N E m Z LLN N LO N NI L a U 3 0 E Y 0 g (6 a p% j I ` l Pol -001 Ows,• ;�• - i _ Fes. � --.•II -.-, r `�.� 6uirford tan - _ _ - . r� � �� ` v � .ram• � •"7 by `' id "" ` rl f���'�' 9 . _ � _ - ��„�:� ��<� �.� Y i ••7 � "?,k s ��� r Imo, �.) � � _ ;' �� -/fir„5�- ti � ;••- �) �t: �i _�'3. , Cif � � ` Ilar 4'a-:h �b'i • F9 kyll .I''�1� ti = � ��- - SITE LOCATION 7. - Vv- FACILITY MW 1 LEGEND SITE LOCATION MAP EXISTING 10' CONTOURS ' 0 / I - EXISTING 2' CONTOURS N- 9.49 13.4 x ♦ _ _ PROPERTY LINE 809.7 x u.6 08 soe. x ao9.7 LF � i ,�o STREAM 775.1, x 847.1 x x - _ ,- IIr I ....TREELINE �� / oV ♦ o �g0 EXISTING ROAD / _ _ w,- - - - PROPOSED OR EXISTING LIMITS OF WASTE �. � �- - 40 �MW 3 / x f "� � 44 El ° MW-3 MONITORING WELL LOCATION IDENTIFICATION AND - 739.70 GROUNDWATER ELEVATION S� / ` ♦ ❑ SW-1 SURFACE WATER MONITORING POINT I 740 / x ❑ SW-2 ) 9. e67.3x j "�7s6 I pN��NC 78 06L P-3 PROPOSED MONITORING WELL LOCATION x x I +785.11 b 1 I � ♦ 3 � ` _ ,/ • �, � I - ``~' o°o®BM-1 BENCH MARK 2 07 x 783. x 1 I I 1 7(C � � l / � Y' �,�.,, �TU 7 7.3 r �>< , ' �� \ 008 LFG-1 LANDFILL GAS MONITORING WELL LOCATIONS x s �! V 0 09 773.1 �S/q �r�•', GAS VENT ��_ _ �, x / ♦�/I SB-1 SEDIMENT BASIN -760 GROUNDWATER SURFACE CONTOURS 792.9 GROUNDWATER FLOW SEGMENT USED TO 784.6 _ x 7 \ CALCULATE GRADIENT 08L d 73 6 v SB-3 � �II�.�jW sos 1 7 • ®r ILI loll If �Okh his 41 ff LEON-: w a NOTES L7 ' \\ 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET 79 . I © 1\ I / 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET x 790 \ j 3. GROUNDWATER ELEVATIONS MEASURED ON JANUARY 29, 2020. x 4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND \ EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS AND KNOWN FIELD 8 .3 019 \\ CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL z \\� n CONDITIONS. <_ \ 6.9 \ 5. GROUNDWATER CONTOURS LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE El � � C CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT x 793.3 \ I I\ L _ _ \ ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY \ PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE �\LL RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. THE GROUNDWATER ELEVATIONS FOR MW-4D AND MW-7D WERE NOT USED IN THE CONSTRUCTION OF GROUNDWATER CONTOURS. U �LL 7. DRAWING BASED ON SITE PLAN PLAN PREPARED BY JOYCE ENGINEERING, INC DATED JULY 7, O \ 2004. I\ 8. UPDATED TOPOGRAPHY PROVIDED FROM AERIAL SURVEY PREPARED BY COOPER AERIAL F I SURVEY COMPANY, DATE JANUARY 08, 2019. 781.6 9. HIGH POINT, NORTH CAROLINA 7.5-MINUTE QUADRANGLE MAP OBTAINED FROM US GEOLOGIC F 0 200 400 � SURVEY, DATE AUGUST 7, 2019. 10. THE GROUNDWATER ELEVATION FOR MW-4D WAS NOT USED IN THE CONSTRUCTION OF F SCALE FEET GROUNDWATER CONTOURS. so.1 CLIENT PROJECT i WASTE INDUSTRIES OF HIGH POINT, LLC CONSTRUCTION AND DEMOLITION DEBRIS LANDFILL AND RECLAMATION FACILITY GUILFORD COUNTY, NORTH CAROLINA I /CONSULTANT YYYY-MM-DD 2020-3-06 TITLE PREPARED HAC GROUNDWATER CONTOUR MAP DESIGN TJM JANUARY 29, 2020 G 0 L D E R REVIEW DYR PROJECT No. PHASE Rev. FIGURE GOLDER ASSOCIATES NC, INC. APPROVED RPK 20137881 101 0 1 0 APPENDIX A Groundwater and Surface ftnLui Sampling Logs GOLDER DATE: I - { U• T7-c;"r- G GROUNDWATER SAMPLING LOG Project Name: High Point Project NoJPhase No.: LGi3 7 FT( Well ID: 141, l Sampler(s): E. Vasko _ Well Diameter: 2 inches Initial Depth to Water: .S , C feet Depth to Bottorn: I. G feet Water Column Thickness: 1 feet Pumping Rate: r' mLlmin. System Volume: mL Equipment: YS! Pro Plus, Hach 2100Q, Water level meter, dedicated bladder pump, MP15 t0.1 t5I <10 t10%or0.2 r 20 (f 10 ideal) Sp. Cond. • MEN Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: 01105 Begin purging @ 1 3 4- 0 11 Signature: Date: ( - 3e ` zc z- C, "QC Sign Off: Date: GOLDER DATE: GROUNDWATER SAMPLING LOG Project Name: High Point Project No./Phase No.: G 137cM Well ID: A myd - Z - Sampler(s): E. Vasko Well Diameter; 2 Inches Initial Depth to Water: :3. (7 feet Depth to Bottom: I S , G feet Water Column Thickness; ( I • (z feet Pumping Rate: ito mL/min. System Volume: FQ5. mL Equipment: YSI Pro Plus, Hach 21009, Water /eve/ meter, dedicated bladder pump, MP15 1 0.1 3 5% <10 3 10% or 0.2 120 (t 10 ideal) • . . ' is • (millivolts) Comments (weather conditions, color, type of sample, purge -water management, etc.); Weather: c 10 U 1 j Begin purging W l I(�L - Signature: u QAIQG Sign Off: Date: 1 - 3 G - Z Date;- �G' GOLDEF2 DATE: I - '? 4 m Z G" 2 0 GROUNDWATER SAMPLING LOG Project Name; _ High Point Project No./Phase No.: Z t' r?I Well ID: MW-1 Sampler(s): E. Vasko Well Diameter: 2 inches Initial Depth to Water: ( feet Depth to Bottom: 3 . G feet Water Column Thickness: I LZ feet Pumping Rate: mLlmin. System Volume: mL Equipment: Y51 Pro Plus, Hach 2100Q, Water level meter, dedicated bladder pump, MP15 t 0.1 t 5% <10 t 10% or 0 2 f 20 It 10 ideal) M�t mlffl� rum Comments (weather conditions, color, type of sample, purge -water management, etc.); Weather: C l G16 Benin Durainp o0.. 01 <n Signature: `'inrti� �f Date:, QAIQC Sign Off: Date:-� GOLDER DATE: I GROUNDWATER SAMPLING LOG Project Name: High Point Project No./Phase No.: 7 G 13 7 �V Well ID: /L\ W - _Z_ Sampler(s): E. Vasko Well Diameter: 2 inches Initial Depth to Water: S feet Depth to Bottom: G' feet Water Column Thickness: 3, O T feet Pumping Rate: C 0 mumin, System Volume: -'� 3 mL Equipment: Y51 Pro Plus, Hach 2100Q, Wafer level meter, dedicated bladder pump, MP15 t 0A t 5% <10 ± 10% or 0.2 t 20 (3 10 ideal) �M_Auslcm) pCond. , (mg/L) M (millivolts) Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: C (,� K � _� i'r`C j Begin purging a@ l -73 r Signature: Date: [ - G- 2 C 2 G QAIQC Sign Off: Date:- 2 ri 2rL• GOLDER DATE: f e `[ - Z lz� zc GROUNDWATER SAMPLING LOG Project Name: High Point Project No./Phase No.: - G 13 79?+ Well ID: Ew _ -�11gJ - 3 Sampler($): E. Vasko Well Diameter: 2 inches Initial Depth to Water: , -7-7 feet Depth to Bottom: D_ Z C, feet Water Column Thickness: P feet Pumping Rate: r u mLlmin. System Volume: 161 9- 5 _ ml- Equipment: YSl Pro Plus, Hach 2100Q, Water level meter, dedicated bladder pump, MP15 i 0 1 t 5% <10 t 10% 4r 0.2 t 20 (t 10 ideal) Sp. Cond. Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: [' deci(- 5 jc' ;tip Begin purging @ r3 % - D Signature: [%lull. �:.1� Date; QAIQC Sign Off: Date: Z-_ .> GOLDER DATE: GROUNDWATER SAMPLING LOG Project Name: Hi h Point Project No./Phase No.: Well ID: (N ' Sampler(s): E. Vasko Well Diameter: 2 inches Initial Depth to Water: �t , x I feet Depth to Bottom: Z feet Water Column Thickness: 7 °t feet Pumping Rate: ' mLlmin. System Volume: q (' mL Equipment: YSl Pro Plus, Hach 2100Q, Water level meter, dedicated bladder pump, MP15 + n I +C;ft. <in +1AO/ nrn2 + 70 f+ 10 ideal) ® p Cond. Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: cvP_. C 45 + Begin purging & CQ46 2- Signature: Date: z e ? 0 QAIQG Sign off: Date: j ? -7 GOLDER Project Name: High Point Well ID: of - DATE: j ^ Z 0 GROUNDWATER SAMPLING LOG Project No.fPhase No.: Sampler(s): Well Diameter: 2 inches Initial Depth to Water: lo-if feet Depth to Bottom: -Z_-7 . L¢ feet Water Column Thickness: 17,03 feet Pumping Rate: mLlmin. System Volume: 165 mL Equipment: YSI Pro Plus, Hach 2100Q, Water level mefer, dedicated Bladder pump, MP15 't 0.1 t 5% <10 t 10% or 0.2 C 07r7t E. Vasko t 24 (t 10 ideal) Time pH (S.U.) Sp. Cond. (US/cm) Turb (NTU) Dis Oz (mglL) Temp. (°c) ORP (millivolts) DTW (feet) 4- S 6• 1,5:-3 0, 3,•z 17! Z . 0 z -s 4,3 i<, 0 156 IL's 3 L I S S Z `- 0,3 '3,3 0.C) f' 1 Z k 1-7,3 ". / 3Z, G3 !S (11J L Z-.` s-o 3,`} - 0. i7 . Lis 4 4 i, 3 Z 4- ,,3 { I 29zr3 �k, ZS 9 l3,� r i 7 [' ' - �+'7 7 t 5 3 7L.3 a [� r�1I5 (' . [ fi-1 3 i -5 i CJ �+ 1ay C7 � � ! I I �7• 4 r LJ I -L / h. Z311?18 .yam 0' i -5 -ISO, z 4 Z C,S i r,. Z 37.q , I / Is T 1 2- ( r( G.z+ e _ LG .S 12 , Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: C. ( uu Berlin puQtnq Q + ZtS Signature: c 'L, l! QA1QC Sign Off: Date: r ZC Z-y Date:'? 21�• GOLDER Project Name: High Point Well ID: /A" - C wen Diameter: 2 inches DATE: I - . G - Z G , a GROUNDWATER SAMPLING LOG Project No./Phase No.: C'(. 7FFI Sampler(s): E. Vasko Initial Depth to Water: 9, T 7 feet Depth to Bottom: I T , _ feet Water Column Thickness: feet Pumping Rate: mLlmin. System Volume: 17 mL Equipment: YSI Pro Plus, Hach 2900Q, Water level meter, dedicated bladder pump, MP15 t 0.1 t 5% <10 t 10% or 0.2 t 20 (t 10 ideal) i ' '- • ® • ' Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: C ( c u J Begin purging @ Signature: 1LI QAIQC Sign Off: Date: L-30-'702 Date: 1.00 GOI.DER DATE: - -ZO7 6 GROUNDWATER SAMPLING LOG Project Name: High Point Project No./Phase No.: - 0 7?yc Well ID: ,`� ,� - -7 5 Samplers): E. Vasko Well Diameter: 2 inches Initial Depth to Water: 7 4, feet Depth to Bottom: -7 feet Water Column Thickness: -Z 0, q G feet Pumping Rate: U mUmin. System Volume: j [6 q- mL Equipment: Y31 Pro Plus, Hach 21OOQ, Water level meter, dedicated bladder pump, MP15 t 0.1 t 5°/0 E 10 t 10% or 0.2 t 20 (t 10 ideal) Comments (weather conditions, color, type of sample, purge -water management, etc.). Weather: r. tecur Begin purging G k r Signature: ` - — - Date: 1 `Z �--Z- O QAIQC Sign Off: �� Date: yam. 2 - .fir o kJp GOLDER DATE: `.:' ; 1 c GROUNDWATER SAMPLING LOG Project Name: High Point Project No./Phase No.: I G f 3 %F V Well ID: /Av. 1Y Sampler(s): _ E. Vasko _ Well Diameter: 2 Inches Initial Depth to Water:feet Depth to Bottom: 10 feet Water Column Thickness: s . 11 feet Pumping Rate: mLlmin. System Volume: q f 3 mL Equipment: YS1 Pro Plus, Hach 2100Q, Water level meter, dedicated bladder pump, MP15 t 0A # 5% <10 t 10% or 0.2 3 20 ii 10 ideal) ® r Cond. ® , Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: C ioy;j,5 Begin purging Q 67,3 7 !/ ClMQC Sign Off: Date: 1 r -30 26z o Date: • -2• GOLDER DATE: ( G [3 GROUNDWATER SAMPLING LOG Project Name: High Point Project No./Phase No.: L i / �' Yi Well ID: ! ' ' Sampler($): E. Vasko Well Diameter: 2 inches Initial Depth to Water: • 9S feet Depth to Bottom: Z 7 7 2 feet Water Column Thickness: `C Z • 7 7 feet Pumping Rate: t U U mUmin. System Volume: 5 mL Equipment: Y51 Pro Plus, Hach 2900Q, Water level meter,. pump; f 0.1 r 5% <10 t 10 % or 0.2 t 20 i± 10 ideEh �Ml (US/cm) MOWN i � MM'I% Comments (weather conditions, color, type of sample, purge -water management, etc.): Weather: Begin purging O930 ti , ■lr LA�! Date: 1- —7- q-- z G -t-0 Date: P. pc+c IL k> GOLDER DATE: J - �0 - Z 6, ? U SURFACE WATER SAMPLING LOG Project Name: High Point Project No./Phase No.: -1 0137 { Sample ID: S` i�'- +, Sampler(s): E. Vasko Equipment: YSI Pro Plus, Turbidimeter Time (r�50 pH S.U. � q Sp. Cond. US/= ' 3 Turb. ntu 1,7 Dis. Oz mg/L (ra Temp. oC ORP�' my Sampling Location Sketch LT,6Wt f I Comments (sample methodology, weather conditions, color, silt, etc.): Weather: c Ic1, J S Signature: Date: /- 3 a- Z G Z- 0 QAlQC Sign Off: / Date:��,-•- 14> COLDER DATE: 1 C' c 6 SURFACE WATER SAMPLING LOG Project Name: High Point Project No./Phase No.: -0 013 7 Sample ID: 5 GV - 2 Sampler(s): E. Vasko Equipment: YSI Pro Plus, Turbidimeter Time 0 S.U.pH Sp. Cond. us/cm 7.71 1 Z Turb. ntu ,p ( G . 4 Dis. Oz,1 mg1L Temp. tr ORP my Sampling Location Sketch -11 fi �l tow - Comments (sample methodology, weather conditions, color, silt, etc.): Weather: 1 c , °) Signature: Date: C QA1QC Sign Off: Date: 277 GOLDER Project Name: Sample ID: Equipment: DATE: I- —J 0- 2 C E O SURFACE WATER SAMPLING LOG High Point Project No./Phase No.: 4w • 3 Sampler(s): YSI Pro Plus, Turbidimeter Time i 61_-" PH S.U. 7, 5.7 Sp. Cond. us/cm� �{ Turb. ntu Dis. 02 mg/L q ` q Temp. C f ORP mV 'Z Gt3"?TTr E. Vasko Sampling Location Sketch Tr et GAe Cl Comments (sample methodology, weather conditions, color, silt, etc.): Weather: e t,k, r ) Signature: Date: QAIQC Sign Off: Date: - xel,?, v GOLDER Project Name: Sample ID: Equipment: DATE: I ` G- -Zo z D SURFACE WATER SAMPLING LOG High Point Project NodPhase No.: S I'v 4- Sampler(s): YSi Pro Plus, Turbidimeter Time S.U.pH Sp. Cond. us/cm•� Tu rb. ntu Dis_ 02 mg/L Temp. 'C r . t} ORP my E 9d --> �1'It zGtJ 7'?f E. Vasko Sampling Location Sketch Comments (sample methodology, weather conditions, color, slit, etc.): Weather: (I to 6 is" N Signature: Date: - '� c o QAlQC Sign Off: Date: APPENDIX B January 2020 Groundwater and Surface Water Certificate -of - Analysis, Chain -of -Custodies, and Lab Data Reviews ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Friday, February 14, 2020 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 19116638.102, Project Name/Desc: GFL Env - High Point LF, LLC ENCO Workorder(s): CDO0299 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, January 31, 2020. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Meghan K Shea Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 24 PROJECT NARRATIVE Date: 14 February 2020 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Lab ID: CDO0299 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The Benzene and Chlorobenzene spike recoveries were outside acceptance limits for the 8260D MS and/or MSD. The QC batch was accepted based on acceptable LCS recoveries. The Alkalinity spike recovery was outside acceptance limits for the MS and /or MSD. The QC batch was accepted based on acceptable LCS recovery. The Iron and Manganese spike recoveries were outside acceptance limits for the MS and/or MSD. The QC batch was accepted based on acceptable LCS recoveries. Iron and Manganese post -digestion spikes did not meet method requirements due to confirmed matrix effects. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Meghan Shea Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 24 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-AMW3 Lab ID: CDO0299-01 Sampled: 01/30/20 14:39 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/27/20 02/04/20 09:19 02/04/20 21:11 EPA 310.2 NO PREP 02/13/20 02/06/20 09:40 02/06/20 12:44 EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 11:40 EPA 6020B EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 17:01 EPA 7470A EPA 7470A 02/27/20 02/03/20 10:57 02/04/20 16:39 EPA 8260D EPA 5030B_MS 02/13/20 02/04/20 13:14 02/04/20 14:49 EPA 8260D EPA 5030B_MIS 02/13/20 02/05/20 12:36 02/06/20 16:57 SM 254OC-2011 NO PREP 02/06/20 02/04/20 14:30 02/04/20 14:30 Client ID: 4116-AMW1 Lab ID: CD00299-01RE2 Sampled: 01/30/20 14:39 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 02/13/20 02/11/20 17:07 02/12/20 17:14 Client ID: 4116-AMW2 Lab ID: CDO0299-02 Sampled: 01/30/20 12:04 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/27/20 02/04/20 09:19 02/04/20 21:46 EPA 310.2 NO PREP 02/13/20 02/06/20 09:40 02/06/20 12:45 EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 11:43 EPA 6020B EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 17:05 EPA 7470A EPA 7470A 02/27/20 02/03/20 10:57 02/04/20 16:46 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 13:14 02/04/20 15:14 EPA 8260D EPA 503013_MS 02/13/20 02/05/20 12:36 02/06/20 17:29 EPA 8260D EPA 503013_MS 02/13/20 02/05/20 16:18 02/06/20 17:29 SM 2540C-2011 NO PREP 02/06/20 02/04/20 14:30 02/04/20 14:30 Client ID: P-3 Lab ID: CDO0299-03 Sampled: 01/29/20 14:24 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/27/20 01/31/20 15:00 02/05/20 11:45 EPA 6020E EPA 3005A 07/27/20 01/31/20 14:54 02/03/20 17:09 EPA 7470A EPA 7470A 02/26/20 02/03/20 10:57 02/04/20 16:48 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 24 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-AMW3 Lab ID: CDO0299-01 Analvte Results Flag MDL Q Units Method Notes 1,4-Dioxane 25 0.80 2.0 ug/L EPA 8260D Barium - Total 332 1.10 10.0 ug/L EPA 6010D Chloride 81000 2200 5000 ug/L EPA 300.0 Chromium - Total 1.80 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 12.3 1.40 10.0 ug/L EPA 6010D Iron - Total 10500 22.0 50.0 ug/L EPA 6010D Manganese - Total 7910 1.50 10.0 ug/L EPA 6010D Nickel - Total 3.39 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 54000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 370000 D 28000 30000 ug/L EPA 310.2 Total Dissolved Solids 750000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-AMW3 Lab ID: CD00299-01RE2 Analvte Results Flag MDL Q Units Method Notes Acetone 12 1 10 20 ug/L EPA 8260D Benzene 0.85 1 0.15 1.0 ug/L EPA 8260D Xylenes (Total) 0.46 J 0.45 3.0 ug/L EPA 8260D Client ID: 4116-AMW2 Lab ID: CDO0299-02 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 45 0.80 2.0 ug/L EPA 8260D Barium - Total 147 1.10 10.0 ug/L EPA 6010D Chloride 52000 D 4400 10000 ug/L EPA 300.0 Chromium - Total 1.90 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 8.21 J 1.40 10.0 ug/L EPA 6010D Iron - Total 2620 22.0 50.0 ug/L EPA 6010D Manganese - Total 1850 1.50 10.0 ug/L EPA 6010D Nickel - Total 2.90 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 39000 D 5800 10000 ug/L EPA 300.0 Tetrahydrofuran 15 0.53 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 330000 D 70000 75000 ug/L EPA 310.2 Total Dissolved Solids 540000 50000 50000 ug/L SM 2540C-2011 Client ID: P-3 Lab ID: CDO0299-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 50.8 1.10 10.0 ug/L EPA 6010D Manganese - Total 25.1 1.50 10.0 ug/L EPA 6010D Mercury - Total 0.222 0.150 0.200 ug/L EPA 7470A FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 24 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CD00299-01 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 14:39 Work Order: CD00299 Project: GFL Env - High Point LF, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB11038 EPA 8260D 02/12/20 17:14 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB11038 EPA 8260D 02/12/20 17:14 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 OB11038 EPA 8260D 02/12/20 17:14 REF Acetone [67-64-1]A 12 J ug/L 1 10 20 OB11038 EPA 8260D 02/12/20 17:14 REF Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 OB11038 EPA 8260D 02/12/20 17:14 REF Benzene [71-43-2]A 0.85 J ug/L 1 0.15 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB11038 EPA 8260D 02/12/20 17:14 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 OB11038 EPA 8260D 02/12/20 17:14 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 OB06012 EPA 8260D 02/06/20 16:57 REF Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB11038 EPA 8260D 02/12/20 17:14 REF Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 OB11038 EPA 8260D 02/12/20 17:14 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CD00299-01 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 14:39 Work Order: CD00299 Project: GFL Env - High Point LF, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes(Total)[133O-20-7]^ 0.46 J ug/L 1 0.45 3.0 OB11038 EPA 8260D 02/12/20 17:14 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 49 1 50.0 98 % 53-136 OB11038 EPA 626OD 02112120 17:14 REF Dibromofluoromethane 42 1 50.0 85 % 67-129 OB11038 EPA 626OD 0211212017:14 REF Toluene-& 46 1 50.0 91 % 59-134 OB11038 EPA 626OD 02112120 17:14 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 16:39 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:01 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Barium [7440-39-3]^ 332 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:40 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:40 JDH Chromium [7440-47-3]^ 1.80 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Cobalt[7440-48-4]^ 12.3 ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Iron [7439-89-6]^ 10500 ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Manganese [7439-96-5]1 7910 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Nickel[7440-02-O]^ 3.39 J ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:01 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:40 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 81000 ug/L 1 2200 5000 OB04016 EPA 300.0 02/04/20 21:11 LJI Sulfate as SO4 [14808-79-B]^ 54000 ug/L 1 2900 5000 OB04016 EPA 300.0 02/04/20 21:11 LJI Total Alkalinity as CaCO3 [471-34-1]^ 370000 D ug/L 2 28000 30000 OB06017 EPA 310.2 02/06/20 12:44 AKF Total Dissolved Solids^ 750000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CD00299-01 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 14:39 Work Order: CD00299 Project: GFL Env - High Point LF, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 25 ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 14:49 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.0 1 5.00 100 % 75-125 OB04027 EPA 826OD 0210412014:49 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 24 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CDO0299-02 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 12:04 Work Order: CDO0299 Project: GFL Env - High Point LF, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 OB06012 EPA 8260D 02/06/20 17:29 REF 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 OB06012 EPA 8260D 02/06/20 17:29 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB06012 EPA 8260D 02/06/20 17:29 REF Acetone [67-64-1]^ 10 U ug/L 1 10 20 OB06012 EPA 8260D 02/06/20 17:29 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB06012 EPA 8260D 02/06/20 17:29 REF Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Carbon disulfide [75-15-O]^ 1.5 U ug/L 1 1.5 5.0 OB06012 EPA 8260D 02/06/20 17:29 REF Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB06012 EPA 8260D 02/06/20 17:29 REF Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Tetrahydrofuran [109-99-9]^ is ug/L 1 0.53 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 OB06012 EPA 8260D 02/06/20 17:29 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB06012 EPA 8260D 02/06/20 17:29 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CD00299-02 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 12:04 Work Order: CD00299 Project: GFL Env - High Point LF, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB06012 EPA 8260D 02/06/20 17:29 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 45 1 50.0 90 % 53-136 OB06012 EPA 626OD 02106120 17:29 REF Dlbromofluoromethane 49 1 50.0 97 % 67-129 OB06012 EPA 626OD 0210612017:29 REF Toluene-& 43 1 50.0 86 % 59-134 OB06012 EPA 626OD 0210612017:29 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 16:46 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:05 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Barium [7440-39-3]^ 147 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:43 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:43 JDH Chromium [7440-47-3]^ 1.90 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Cobalt[7440-48-4]^ 8.21 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Iron [7439-89-6]^ 2620 ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Manganese [7439-96-5]1 1850 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Nickel[7440-02-O]^ 2.90 J ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:05 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:43 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 52000 D ug/L 2 4400 10000 OB04016 EPA 300.0 02/04/20 21:46 LJI Sulfate as SO4 [14808-79-B]^ 39000 D ug/L 2 5800 10000 OB04016 EPA 300.0 02/04/20 21:46 LJI Total Alkalinity as CaCO3 [471-34-1]^ 330000 D ug/L 5 70000 75000 OB06017 EPA 310.2 02/06/20 12:45 AKF Total Dissolved Solids^ 540000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CD00299-02 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 12:04 Work Order: CD00299 Project: GFL Env - High Point LF, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte ICAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 45 ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 15:14 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.5 1 5.00 111 % 75-125 OB04027 EPA 826OD 0210412015:14 KKW Description: P-3 Lab Sample ID:CD00299-03 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 14:24 Work Order: CD00299 Project: GFL Env - High Point LF, LLC Sampled By: Erik Vasko Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.222 ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 16:48 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 u ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:09 RLF Arsenic[7440-38-2]^ 7.60 u ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Barium [7440-39-3]^ 50.8 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Beryllium [7440-41-7]^ 0.160 u ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:45 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:45 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Cobalt [7440-48-4]^ 1.40 u ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Copper[7440-50-8]^ 1.60 u ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Iron [7439-89-6]^ 22.0 u ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Manganese [7439-96-5]^ 25.1 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Nickel[7440-02-0]^ 2.20 u ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Selenium [7782-49-2]^ 6.20 u ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Silver [7440-22-4]^ 1.90 u ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Thallium [7440-28-O]^ 0.220 u ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:09 RLF Vanadium [7440-62-2]^ 1.40 u ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH Zinc [7440-66-6]^ 4.40 u ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:45 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OBO6O12 - EPA 5030E MS Blank (OB06012-BLK1) Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 15:20 Analvte Result Flaq POL Units 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC Level Result %REC Limits RPD RPD Limit Notes 4-Bromofluorobenzene 45 u91L 50.0 91 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 11 Of 24 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OBO6O12 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OB06012-BLK1) Continued Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 15:20 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 46 u91L 50.0 92 67-129 Toluene-& 43 u91L 50.0 65 59-134 LCS (OB06012-BSI) Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 13:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 99 75-133 Benzene 15 1.0 ug/L 20.0 77 80-134 Chlorobenzene 16 1.0 ug/L 20.0 82 80-120 Toluene 20 1.0 ug/L 20.0 101 71-120 Trichloroethene 17 1.0 ug/L 20.0 85 74-120 Matrix Spike (OB06012-MS1) Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 13:42 Source: CD01915-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 103 75-133 Benzene 17 1.0 ug/L 20.0 0.15 U 84 80-134 Chlorobenzene 16 1.0 ug/L 20.0 0.17 U 79 80-120 QM-07 Toluene 20 1.0 ug/L 20.0 0.14 U 100 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 109 74-120 Matrix Spike Dup (OB06012-MSD1) Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 14:15 Source: CD01915-04 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch OBO7O21 - EPA 5O3OB MS Result 22 17 17 20 20 Flaq POL 1.0 1.0 1.0 1.0 1.0 Units ug/L ug/L ug/L ug/L ug/L Spike Level 20.0 20.0 20.0 20.0 20.0 Source Result 0.21 U 0.15 U 0.17 U 0.14 U 0.15 U %REC 109 85 85 100 102 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 6 1 7 0.6 7 RPD Limit Notes 20 17 16 17 22 Blank (OB07021-BLK3) Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 17:35 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OBO7O21 - EPA 5030E MS - Continued Blank (OB07021-BLK1) Continued Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 17:35 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 45 u91L 50.0 91 53-136 Dibromofluoromethane 47 u91L 50.0 94 67-129 Toluene-d8 41 u91L 50.0 82 59-134 LCS (OB07021-BSI) Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 16:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 78 75-133 Benzene 15 1.0 ug/L 20.0 73 80-134 Chlorobenzene 15 1.0 ug/L 20.0 76 80-120 Toluene 16 1.0 ug/L 20.0 81 71-120 Trichloroethene 15 1.0 ug/L 20.0 76 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OBO7O21 - EPA 5030E MS - Continued Matrix Spike (OB07021-MS1) Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 15:58 Source: CD01915-07 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 25 1.0 ug/L 20.0 0.21 U 126 75-133 Benzene 18 1.0 ug/L 20.0 0.15 U 88 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 94 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 Matrix Spike Dup (OB07021-MSD1) Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 14:31 Source: CD01915-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 117 75-133 8 20 Benzene 15 1.0 ug/L 20.0 0.15 U 75 80-134 16 17 QM-07 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 91 80-120 3 16 Toluene 22 1.0 ug/L 20.0 0.14 U 110 71-120 8 17 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 95 74-120 10 22 Batch OB11O38 - EPA 5O3OB MS Blank (OB31038-BLK3) Prepared: 02/11/2020 17:07 Analyzed: 02/12/2020 14:38 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 24 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OB11O3B - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OB31038-BLK1) Continued Prepared: 02/11/2020 17:07 Analyzed: 02/12/2020 14:38 Analvte Result Flaq POL Units cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 48 ug/L 50.0 96 53-136 Dibromofluoromethane 42 u91L 50.0 84 67-129 Toluene-d8 45 u91L 50.0 91 59-134 LCS (OB11038-BSI) Prepared: 02/11/2020 17:07 Analyzed: 02/12/2020 12:02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 84 75-133 Benzene 19 1.0 ug/L 20.0 94 80-134 Chlorobenzene 19 1.0 ug/L 20.0 95 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 18 1.0 ug/L 20.0 88 74-120 Matrix Spike (OB13038-MS1) Prepared: 02/11/2020 17:07 Analyzed: 02/12/2020 13:04 Source: CD02095-04 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 90 75-133 Benzene 20 1.0 ug/L 20.0 0.15 U 99 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 99 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 107 71-120 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 94 74-120 Matrix Spike Dup (OB13038-MSDS) Prepared: 02/11/2020 17:07 Analyzed: 02/12/2020 13:35 Source: CD02095-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 0.21 U 84 75-133 8 20 Benzene 19 1.0 ug/L 20.0 0.15 U 95 80-134 4 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 4 16 Toluene 20 1.0 ug/L 20.0 0.14 U 102 71-120 5 17 Trichloroethene 18 1.0 ug/L 20.0 0.15 U 89 74-120 6 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 15 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 08O3O22 - EPA 747OA Blank (OB03022-BLK3) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:19 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 0.150 U 0.200 ug/L LCS (OB03022-BSI) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:22 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.02 0.200 ug/L 5.00 100 80-120 Matrix Spike (OB03022-MS1) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:27 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.65 0.200 ug/L 5.00 0.150 U 93 75-125 Matrix Spike Dup (OB03022-MSD1) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:29 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.69 0.200 ug/L 5.00 0.150 U 94 75-125 0.9 25 Post Spike (OB03022-PSI) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:32 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.80 0.200 ug/L 5.00-0.0110 96 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA31O36 - EPA 3OO5A Blank (OA31036-BLKI) Prepared: O1/31/2020 14:54 Analyzed: 02/03/2020 16:35 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (OA33036-BS1) Prepared: O1/31/2020 14:54 Analyzed: 02/03/2020 16:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.1 1.00 ug/L 20.0 106 80-120 Thallium 20.9 1.00 ug/L 20.0 104 80-120 Matrix Spike (OA33036-MS3) Prepared: O1/31/2020 14:54 Analyzed: 02/03/2020 16:44 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 45.1 2.00 ug/L 40.0 0.740 U 113 75-125 Thallium 39.9 2.00 ug/L 40.0 0.220 U 100 75-125 Matrix Spike Dup (OA33036-MSD1) Prepared: 01/31/2020 14:54 Analyzed: 02/03/2020 16:48 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA31O36 - EPA 3OO5A - Continued Matrix Spike Dup (OA31036-MSDS) Continued Prepared: 01/31/2020 14:54 Analyzed: 02/03/2020 16:48 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 45.9 2.00 ug/L 40.0 0.740 U 115 75-125 2 20 Thallium 40.6 2.00 ug/L 40.0 0.220 U 101 75-125 2 20 Post Spike (OA31036-PSI) Prepared: 01/31/2020 14:54 Analyzed: 02/03/2020 16:52 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.1 1.00 ug/L 20.0 0.0421 110 75-125 Thallium 19.9 1.00 ug/L 20.0 0.0223 99 75-125 Batch OA31O38 - EPA 3OO5A Blank (OA31038-BLK3) Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Iron 22.0 U 50.0 ug/L Lead 3.10 U 10.0 ug/L Manganese 1.50 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (OA33038-BS1) Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 204 10.0 ug/L 200 102 80-120 Barium 200 10.0 ug/L 200 100 80-120 Beryllium 20.9 1.00 ug/L 20.0 105 80-120 Cadmium 21.3 1.00 ug/L 20.0 107 80-120 Chromium 204 10.0 ug/L 200 102 80-120 Cobalt 206 10.0 ug/L 200 103 80-120 Copper 202 10.0 ug/L 200 101 80-120 Iron 1030 50.0 ug/L 1000 103 80-120 Lead 199 10.0 ug/L 200 100 80-120 Manganese 205 10.0 ug/L 200 103 80-120 Nickel 202 10.0 ug/L 200 101 80-120 Selenium 208 10.0 ug/L 200 104 80-120 Silver 211 10.0 ug/L 200 106 80-120 Vanadium 205 10.0 ug/L 200 103 80-120 Zinc 204 10.0 ug/L 200 102 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA31O3B - EPA 3OO5A - Continued Matrix Spike (OA33038-MS1) Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:12 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 212 10.0 ug/L 200 7.60 U 106 75-125 Barium 657 10.0 ug/L 200 431 113 75-125 Beryllium 20.8 1.00 ug/L 20.0 0.160 U 104 75-125 Cadmium 20.4 1.00 ug/L 20.0 0.360 U 102 75-125 Chromium 207 10.0 ug/L 200 2.11 103 75-125 Cobalt 215 10.0 ug/L 200 6.74 104 75-125 Copper 214 10.0 ug/L 200 1.60 U 107 75-125 Iron 15200 50.0 ug/L 1000 13500 175 75-125 QM-07 Lead 203 10.0 ug/L 200 3.10 U 101 75-125 Manganese 12200 10.0 ug/L 200 11700 233 75-125 QM-07 Nickel 213 10.0 ug/L 200 3.71 105 75-125 Selenium 200 10.0 ug/L 200 6.20 U 100 75-125 Silver 217 10.0 ug/L 200 1.90 U 108 75-125 Vanadium 208 10.0 ug/L 200 1.40 U 104 75-125 Zinc 218 10.0 ug/L 200 4.40 U 109 75-125 Matrix Spike Dup (OA33038-MSDS) Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:14 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 199 10.0 ug/L 200 7.60 U 100 75-125 6 20 Barium 637 10.0 ug/L 200 431 103 75-125 3 20 Beryllium 20.4 1.00 ug/L 20.0 0.160 U 102 75-125 2 20 Cadmium 20.0 1.00 ug/L 20.0 0.360 U 100 75-125 2 20 Chromium 202 10.0 ug/L 200 2.11 100 75-125 3 20 Cobalt 208 10.0 ug/L 200 6.74 101 75-125 3 20 Copper 208 10.0 ug/L 200 1.60 U 104 75-125 3 20 Iron 14800 50.0 ug/L 1000 13500 133 75-125 3 20 QM-07 Lead 199 10.0 ug/L 200 3.10 U 100 75-125 2 20 Manganese 11900 10.0 ug/L 200 11700 77 75-125 3 20 Nickel 207 10.0 ug/L 200 3.71 102 75-125 3 20 Selenium 197 10.0 ug/L 200 6.20 U 98 75-125 2 20 Silver 210 10.0 ug/L 200 1.90 U 105 75-125 3 20 Vanadium 203 10.0 ug/L 200 1.40 U 101 75-125 2 20 Zinc 211 10.0 ug/L 200 4.40 U 105 75-125 3 20 Post Spike (OA31038-PS1) Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:20 Source: CD00300-02 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits RPD Arsenic 0.214 0.0100 mg/L 0.200 -0.00559 107 80-120 Barium 0.650 0.0100 mg/L 0.200 0.431 109 80-120 Beryllium 0.0215 0.00100 mg/L 0.0200 -0.000231 107 80-120 Cadmium 0.0201 0.00100 mg/L 0.0200 -0.000571 101 80-120 Chromium 0.212 0.0100 mg/L 0.200 0.00211 105 80-120 Cobalt 0.212 0.0100 mg/L 0.200 0.00674 103 80-120 Copper 0.221 0.0100 mg/L 0.200 0.000570 110 80-120 Iron 14.8 0.0500 mg/L 1.00 13.5 128 80-120 Lead 0.204 0.0100 mg/L 0.200 -0.00188 102 80-120 Manganese 11.7 0.0100 mg/L 0.200 11.7 NR 80-120 RPD Limit Notes QM-08 QM-08 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 18 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA31O3B - EPA 3OO5A - Continued Post Spike (OA31038-PS3) Continued Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:20 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 0.212 0.0100 mg/L 0.200 0.00371 104 80-120 Selenium 0.202 0.0100 mg/L 0.200 -0.0214 101 80-120 Silver 0.226 0.0100 mg/L 0.200 -0.000452 113 80-120 Vanadium 0.213 0.0100 mg/L 0.200 -0.00218 107 80-120 Zinc 0.216 0.0100 mg/L 0.200 0.00336 107 80-120 Classical Chemistry Parameters - Quality Control Batch 08O3O29 - NO PREP Blank (OB03029-BLK3) Prepared & Analyzed: 02/04/2020 14:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 50000 U 50000 ug/L LCS (OB03029-BSI) Prepared & Analyzed: 02/04/2020 14:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 980 50 mg/L 1000 98 80-120 Duplicate (OB03029-DUPl) Prepared & Analyzed: 02/04/2020 14:30 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 1000000 50000 ug/L 1000000 3 20 Duplicate (OB03029-DUP2) Prepared & Analyzed: 02/04/2020 14:30 Source: CC16721-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 890000 50000 ug/L 910000 2 20 Batch OBO4O16 - NO PREP Blank (OB04016-BLK3) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 19:43 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (OB04016-BS1) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 20:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 50000 5000 ug/L 50000 99 90-110 Sulfate as SO4 48000 5000 ug/L 50000 96 90-110 Matrix Spike (OB04016-MS1) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 20:36 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 180000 20000 ug/L 80000 94000 109 90-110 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 19 Of 24 QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch OB04O16 - NO PREP - Continued (� �Eo www.encolabs.com Matrix Spike (OB04016-MS3) Continued Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 20:36 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 120000 20000 ug/L 80000 44000 97 90-110 Matrix Spike (OB04016-MS2) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 21:29 Source: CD00299-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 100000 E 5000 ug/L 20000 81000 108 90-110 Sulfate as SO4 75000 5000 ug/L 20000 54000 109 90-110 Matrix Spike Dup (OB04016-MSDS) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 20:53 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 170000 20000 ug/L 80000 94000 101 90-110 4 10 Sulfate as SO4 120000 20000 ug/L 80000 44000 93 90-110 2 10 Batch OBO6O17 - NO PREP Blank (OB06017-BLK3) Prepared: 02/06/2020 09:40 Analyzed: 02/06/2020 12:40 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 14000 U 15000 ug/L LCS (OB06017-BSI) Prepared: 02/06/2020 09:40 Analyzed: 02/06/2020 12:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 100 15 mg/L 100 103 80-120 Matrix Spike (OB06017-MS3) Prepared: 02/06/2020 09:40 Analyzed: 02/06/2020 12:42 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1000000 150000 ug/L 400000 610000 110 80-120 Matrix Spike Dup (OB06017-MSDI) Prepared: 02/06/2020 09:40 Analyzed: 02/06/2020 12:43 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1100000 150000 ug/L 400000 610000 125 80-120 6 25 QM-07 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OBO4O27 - EPA 5O3OB MS Blank (OB04027-BLK3) Prepared: 02/04/2020 00:00 Analyzed: 02/04/2020 12:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 5.2 ug/L 5.00 105 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OBO4O27 - EPA 5030E MS - Continued LCS (OB04027-BSI) Prepared: 02/04/2020 00:00 Analyzed: 02/04/2020 11:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 100 80-133 Toluene-d8 5.3 u9/L 5.00 105 75-125 Matrix Spike (OB04027-MS1) Prepared: 02/04/2020 00:00 Analyzed: 02/04/2020 21:36 Source: AD00770-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 55 2.0 ug/L 25.0 33 87 80-133 Toluene-d8 5.3 u9/L 5.00 105 75-125 Matrix Spike Dup (OB04027-MSD1) Prepared: 02/04/2020 00:00 Analyzed: 02/04/2020 22:02 Source: AD00770-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 56 2.0 ug/L 25.0 33 93 80-133 3 19 Toluene-d8 4.8 u9/L 5.00 97 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 Of 24 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test). FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 of 24 cn cn � n a c7 m L 7 ¢ m a m ' To ^ w K � �33 p r W or iE m 0 m SO 0 m a Z TIC e N x Q� �• a C� g Q i a N Z rn- -rm- m Awe z c a. �' g. = -► m ^Q 1 r v n 37 31 J W m �? ° O n a c Z a m m a a c m dcn 0 n m l y N m (G o o II CD l r z m m oo m e (fl + O Om 049 R m C n Y n 2,-C C� �• N o m ^ /� A < N o W- Z G. m n w CS n a a�=o m co OD M 3 c m ;o a n OMOD Appendix 1,826W o x x EftndedA26M Sim ID F/T�l N V/ m r o v A9,A*.Ba,8a.C(.0O3CrCu,Fa MnNf,Pb. x x x Sb,Se,Se.T1,V,Zn ` oF AkeMnRy 31a.2,Ch"d 3W,TDS D x x s1e+oc z 6i w ' - O 25 a x x x H � z"n 2 c. Z 9 9 m c, x x Sulfate 30D Ed Z ° m 0 cv y a �J fVi� yam° n m -(� O A w j O r' � O (rT�y�,(1y1/vJ/7R X �- m a � � a a a a a 3 n m m cN a. o ❑ w D O `�' mEE r a 3 is I ID CL C C C Ci 4 Cl _ 0o c� l C7 rr Q Y c CD L1% in a 0 Page 23 of 24 Sample Preservation Verification ENCO Cary Work Order: CDO0299 Client: Golder Associates, Inc. (G0007) Logged In: 31-Jan-20 13:54 j Preservation Check Performed By: CDO0299-01 ContfType A 250mLP+HNO3 CDO0299-02 Cont Type. A 250mLP+HNO3 CDO0299-03 Con( Type A 1250mLP+HNO3 rem Project: GFL Env - High Point LF, LLC Project #: 19116638.102 Logged By: John C King DatelT i [ ---44Z2r �"- ores tprt) E3� pH Adjusted Requirement In Control <2 YININA YNN1NA s (pH) ph unecwu r pH Adjusted irement In Control <2 1 YININA Yl+N1NA 3 (phi) pH Checked I pH Adjusted irement In Control <2 `Y I N I NA YID I NA Reagent Name ID 1 2 PH Strip 1D: ILIC-(O� L i - Reagent Name ID 3 4 )ate/ f ime Adjusted )ate/Time Adjusted ime Reagent Used/Comments Reagent UsedlCornments Reagent Used/Comments Reagent Name 1D 5 6 C:IELMNTIPrintlwko_PreservationCheck.rpt Page 24 of 24 of WORK ORDER Printed: 2/14/2020 3:24:09PM CDO0299 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Meghan K Shea Project: GFL Env - High Point LF, LLC Project Number: 19116638.102 PO #: 2019: Report To: Golder Associates, Inc. (G0007) Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 Phone: (336) 852-4903 Fax: (336) 852-4904 Invoice To: GFL Environmental - High Point (WA051) Seth Heath 5830 Riverdale Dr Jamestown, NC 27828 Phone :(336) 886-3560 Fax: Received By: David E. Wilder Date Received: 31-Jan-20 13:30 Logged In By: John C King Date Logged In: 31-Jan-20 13:54 Work Order Comments: C-1050 received at 0.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Page 1 of 1 ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Friday, February 14, 2020 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 19116638.102, Project Name/Desc: GFL Env - High Point, LLC ENCO Workorder(s): CDO0300 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, January 31, 2020. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Meghan K Shea Project Manager Enclosure(s) FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 1 of 62 PROJECT NARRATIVE Date: 14 February 2020 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point, LLC Lab ID: CDO0300 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The Benzene and Chlorobenzene spike recoveries were outside acceptance limits for the 8260D MS and/or MSD. The QC batch was accepted based on acceptable LCS recoveries. The Alkalinity spike recovery was outside acceptance limits for the MS and /or MSD. The QC batch was accepted based on acceptable LCS recovery. The Iron and Manganese spike recoveries were outside acceptance limits for the MS and/or MSD. The QC batch was accepted based on acceptable LCS recoveries. Iron and Manganese post -digestion spike did not meet method requirements due to confirmed matrix effects. The 1,2-Dichloroethane and trans-1,4-Dichloro-2-butene associated continuing calibration verification standards exhibited high bias; since the results for 4116-MW2 are non -detect, there is no impact. Quality Control Remarks Not enough vials remaining to analyze 4116-MW2 as a matrix spike and matrix spike duplicate for 8260 D Appendix I. Benzene detection in 4116-MW6 was confirmed. Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Meghan Shea Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 62 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MW3 Lab ID: CDO0300-01 Sampled: 01/29/20 09:10 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/26/20 02/04/20 09:19 02/04/20 22:04 EPA 310.2 NO PREP 02/12/20 02/06/20 09:40 02/06/20 12:45 EPA 6010D EPA 3005A 07/27/20 01/31/20 15:00 02/05/20 11:48 EPA 6020B EPA 3005A 07/27/20 01/31/20 14:54 02/03/20 17:13 EPA 7470A EPA 7470A 02/26/20 02/03/20 10:57 02/04/20 16:50 EPA 8260D EPA 5030B_MS 02/12/20 02/04/20 11:00 02/04/20 14:16 EPA 8260D EPA 5030B_MIS 02/12/20 02/04/20 13:14 02/04/20 15:40 SM 254OC-2011 NO PREP 02/05/20 02/04/20 14:30 02/04/20 14:30 Client ID: 4116-MW2 (MS/MSD) Lab ID: CDO0300-02 Sampled: 01/30/20 15:19 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/27/20 02/04/20 09:19 02/04/20 20:18 EPA 310.2 NO PREP 02/13/20 02/06/20 09:40 02/06/20 12:41 EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 11:05 EPA 6020B EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 17:32 EPA 7470A EPA 7470A 02/27/20 02/03/20 10:57 02/04/20 16:24 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 13:14 02/04/20 16:05 EPA 8260D EPA 503013_MS 02/13/20 02/07/20 11:30 02/07/20 20:48 SM 254OC-2011 NO PREP 02/06/20 02/04/20 14:30 02/04/20 14:30 Client ID: 4316-MW3 Lab ID: CDO0300-03 Sampled: 01/29/20 12:16 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/26/20 02/04/20 09:19 02/04/20 22:22 EPA 310.2 NO PREP 02/12/20 02/06/20 09:40 02/06/20 12:46 EPA 6010D EPA 3005A 07/27/20 01/31/20 15:00 02/05/20 11:50 EPA 6020B EPA 3005A 07/27/20 01/31/20 14:54 02/03/20 17:36 EPA 7470A EPA 7470A 02/26/20 02/03/20 10:57 02/04/20 16:53 EPA 8260D EPA 503013_MS 02/12/20 02/04/20 11:00 02/04/20 14:48 SM 2540C-2011 NO PREP 02/05/20 02/04/20 14:30 02/04/20 14:30 Client ID: 4116-MW3 Lab ID: CD00300-03RE1 Sampled: 01/29/20 12:16 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 02/12/20 02/05/20 00:00 02/05/20 11:22 Client ID: 4116-MW4S Lab ID: CDO0300-04 Sampled: 01/30/20 10:43 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/27/20 02/04/20 09:19 02/04/20 23:15 EPA 310.2 NO PREP 02/13/20 02/06/20 09:40 02/06/20 12:48 EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 11:53 EPA 6020E EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 17:40 EPA 7470A EPA 7470A 02/27/20 02/03/20 10:57 02/04/20 16:55 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 13:14 02/04/20 16:56 EPA 8260D EPA 5030B_MS 02/13/20 02/05/20 12:36 02/06/20 18:02 SM 254OC-2011 NO PREP 02/06/20 02/04/20 14:30 02/04/20 14:30 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 62 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MWS Lab ID: CDO0300-05 Sampled: 01/29/20 15:50 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/26/20 02/04/20 09:19 02/04/20 23:32 EPA 310.2 NO PREP 02/12/20 02/06/20 09:40 02/06/20 12:49 EPA 6010D EPA 3005A 07/27/20 01/31/20 15:00 02/05/20 11:56 EPA 6020B EPA 3005A 07/27/20 01/31/20 14:54 02/03/20 17:44 EPA 7470A EPA 7470A 02/26/20 02/03/20 10:57 02/04/20 16:58 EPA 8260D EPA 5030B_MS 02/12/20 02/04/20 11:00 02/04/20 15:21 EPA 8260D EPA 5030B_MIS 02/12/20 02/04/20 13:14 02/04/20 17:22 SM 254OC-2011 NO PREP 02/05/20 02/04/20 14:30 02/04/20 14:30 Client ID: 4116-MW6 Lab ID: CDO0300-06 Sampled: 01/30/20 13:14 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/27/20 02/04/20 09:19 02/04/20 23:50 EPA 310.2 NO PREP 02/13/20 02/06/20 09:40 02/06/20 12:49 EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 11:58 EPA 6020B EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 17:49 EPA 7470A EPA 7470A 02/27/20 02/03/20 10:57 02/04/20 17:00 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 11:00 02/04/20 16:00 SM 2540C-2011 NO PREP 02/06/20 02/04/20 14:30 02/04/20 14:30 Client ID: 4116-MW6 Lab ID: CD00300-06RE1 Sampled: 01/30/20 13:14 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 02/13/20 02/05/20 00:00 02/05/20 17:19 Client ID: 4116-MW7S Lab ID: CDO0300-07 Sampled: 01/29/20 11:04 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/26/20 02/04/20 09:19 02/05/20 00:08 EPA 310.2 NO PREP 02/12/20 02/06/20 09:40 02/06/20 12:50 EPA 6010D EPA 3005A 07/27/20 01/31/20 15:00 02/05/20 12:29 EPA 6020E EPA 3005A 07/27/20 01/31/20 14:54 02/03/20 17:53 EPA 7470A EPA 7470A 02/26/20 02/03/20 10:57 02/04/20 17:03 EPA 8260D EPA 503013_MS 02/12/20 02/03/20 11:59 02/03/20 18:11 SM 254OC-2011 NO PREP 02/05/20 02/04/20 14:30 02/04/20 14:30 Client ID: 4316-MW7S Lab ID: CD00300-07RE1 Sampled: 01/29/20 11:04 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 02/12/20 02/05/20 00:00 02/05/20 11:47 Client ID: 4116-MWS Lab ID: CDO0300-08 Sampled: 01/30/20 09:22 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/27/20 02/04/20 09:19 02/05/20 00:25 EPA 310.2 NO PREP 02/13/20 02/06/20 09:40 02/06/20 12:51 EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 12:45 EPA 6020E EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 17:57 EPA 7470A EPA 7470A 02/27/20 02/03/20 10:57 02/04/20 17:05 EPA 8260D EPA 5030B_MS 02/13/20 02/04/20 11:00 02/04/20 16:33 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 13:14 02/04/20 18:38 SM 254OC-2011 NO PREP 02/06/20 02/04/20 14:30 02/04/20 14:30 Client ID: 4116-SW1 Lab ID: CDO0300-09 Sampled: 01/30/20 08:50 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 12:47 EPA 6020E EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 18:02 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 11:00 02/04/20 17:05 EPA 8260D EPA 5030B_MS 02/13/20 02/04/20 13:14 02/04/20 19:04 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 62 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-SW2 Lab ID: CD00300-10 Sampled: 01/30/20 10:05 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 12:50 EPA 6020E EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 18:06 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 11:00 02/04/20 17:38 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 13:14 02/04/20 19:29 Client ID: 4116-SW3 Lab ID: CD00300-11 Sampled: 01/30/20 10:15 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 12:53 EPA 6020E EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 18:10 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 11:00 02/04/20 18:10 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 13:14 02/04/20 19:55 Client ID: 4116-SW4 Lab ID: CD00300-12 Sampled: 01/30/20 16:15 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 12:55 EPA 6020B EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 18:28 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 11:00 02/04/20 18:42 EPA 8260D EPA 5030B_MS 02/13/20 02/04/20 13:14 02/04/20 20:20 Client ID: 4116-Field Blank Lab ID: CD00300-13 Sampled: 01/30/20 15:48 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/28/20 01/31/20 15:00 02/05/20 12:58 EPA 6020B EPA 3005A 07/28/20 01/31/20 14:54 02/03/20 18:32 EPA 7470A EPA 7470A 02/27/20 02/03/20 10:57 02/04/20 17:08 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 11:00 02/04/20 13:11 EPA 8260D EPA 503013_MS 02/13/20 02/04/20 13:14 02/04/20 20:46 Client ID: 4116-Trip Blank Lab ID: CD00300-14 Sampled: 01/29/20 09:10 Received: 01/31/20 13:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 02/12/20 02/03/20 11:59 02/03/20 17:07 EPA 8260D EPA 5030B_MIS 02/12/20 02/04/20 13:14 02/04/20 21:11 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) Of 62 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW3 Lab ID: CDO0300-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 41.3 1.10 10.0 ug/L EPA 6010D Chloride 20000 D 8700 20000 ug/L EPA 300.0 Manganese - Total 5.44 J 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 200000 D 12000 20000 ug/L EPA 300.0 Total Dissolved Solids 420000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW2 (MS/MSD) Lab ID: CDO0300-02 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 33 0.80 2.0 ug/L EPA 8260D Acetone 11 1 10 20 ug/L EPA 8260D Barium - Total 431 1.10 10.0 ug/L EPA 6010D Benzene 0.57 J 0.15 1.0 ug/L EPA 8260D Chloride 94000 D 8700 20000 ug/L EPA 300.0 Chromium - Total 2.11 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 6.74 J 1.40 10.0 ug/L EPA 6010D Iron - Total 13500 22.0 50.0 ug/L EPA 6010D Manganese - Total 11700 1.50 10.0 ug/L EPA 6010D Nickel - Total 3.71 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 44000 D 12000 20000 ug/L EPA 300.0 Total Alkalinity as CaCO3 610000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 1000000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW3 Lab ID: CDO0300-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 36.8 1.10 10.0 ug/L EPA 6010D Chloride 9800 2200 5000 ug/L EPA 300.0 Chromium - Total 2.11 J 1.40 10.0 ug/L EPA 6010D Iron - Total 432 22.0 50.0 ug/L EPA 6010D Manganese - Total 25.5 1.50 10.0 ug/L EPA 6010D Nickel - Total 2.56 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 12000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 33000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 96000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW4S Lab ID: CDO0300-04 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 0.93 J 0.80 2.0 ug/L EPA 8260D Barium - Total 88.8 1.10 10.0 ug/L EPA 6010D Chloride 12000 2200 5000 ug/L EPA 300.0 Iron - Total 538 22.0 50.0 ug/L EPA 6010D Manganese - Total 37.5 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 27000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 14000 J 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 80000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MWS Lab ID: CDO0300-05 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 9.8 0.80 2.0 ug/L EPA 8260D Barium - Total 51.8 1.10 10.0 ug/L EPA 6010D Chloride 5400 2200 5000 ug/L EPA 300.0 Cobalt - Total 2.20 J 1.40 10.0 ug/L EPA 6010D Iron - Total 45700 22.0 50.0 ug/L EPA 6010D Manganese - Total 2000 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 14000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 72000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 160000 50000 50000 ug/L SM 2540C-2011 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 62 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW6 Lab ID: CDO0300-06 Analvte Results Flag MDL PQL Units Method Notes Acetone 16 J 10 20 ug/L EPA 8260D Barium - Total 724 1.10 10.0 ug/L EPA 6010D Benzene 2.2 0.15 1.0 ug/L EPA 8260D Chloride 200000 D 8700 20000 ug/L EPA 300.0 Chromium - Total 5.79 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 12.6 1.40 10.0 ug/L EPA 6010D Iron - Total 7690 22.0 50.0 ug/L EPA 6010D Manganese - Total 6620 1.50 10.0 ug/L EPA 6010D Nickel - Total 7.23 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 52000 D 12000 20000 ug/L EPA 300.0 Tetrahydrofuran 81 0.53 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 1500000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 2100000 50000 50000 uq/L SM 2540C-2011 I Client ID: 4116-MW6 Lab ID: CDO0300-06RE3 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 220 D 8.0 20 ug/L EPA 8260D Client ID: 4116-MW7S Lab ID: CDO0300-07 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 303 1.10 10.0 ug/L EPA 6010D Chloride 12000 2200 5000 ug/L EPA 300.0 Iron - Total 24.2 J 22.0 50.0 ug/L EPA 6010D Manganese - Total 2.17 J 1.50 10.0 ug/L EPA 6010D Nickel- Total 4.18 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 41000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 240000 D 28000 30000 ug/L EPA 310.2 Total Dissolved Solids 340000 50000 50000 ug/L SM 2540C-2011 Vanadium - Total 10.1 1.40 10.0 uq/L EPA 6010D I Client ID: 4116-MW7S Lab ID: CD00300-07RE1 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 1.8 J 0.80 2.0 ug/L EPA 8260D Client ID: 4116-MW8 Lab ID: CDO0300-08 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 32 0.80 2.0 ug/L EPA 8260D Barium - Total 156 1.10 10.0 ug/L EPA 6010D Benzene 0.57 1 0.15 1.0 ug/L EPA 8260D Chloride 140000 D 4400 10000 ug/L EPA 300.0 Chromium - Total 2.57 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 11.7 1.40 10.0 ug/L EPA 6010D Iron - Total 1010 22.0 50.0 ug/L EPA 6010D Manganese - Total 26200 1.50 10.0 ug/L EPA 6010D Methylene chloride 0.95 J 0.23 1.0 ug/L EPA 8260D Nickel - Total 8.97 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 63000 D 5800 10000 ug/L EPA 300.0 Total Alkalinity as CaCO3 610000 D 70000 75000 ug/L EPA 310.2 Total Dissolved Solids 1100000 50000 50000 uq/L SM 2540C-2011 Client ID: 4116-SW3 Lab ID: CDO0300-09 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 41.3 1.10 10.0 ug/L EPA 6010D Copper - Total 4.14 J 1.60 10.0 ug/L EPA 6010D Nickel - Total 2.26 J 2.20 10.0 ug/L EPA 6010D Vanadium - Total 1.49 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 34.8 4.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 62 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-SW2 Lab ID: CD00300-10 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 1.6 J 0.80 2.0 ug/L EPA 8260D Barium - Total 44.0 1.10 10.0 ug/L EPA 6010D Copper - Total 1.77 J 1.60 10.0 ug/L EPA 6010D Zinc - Total 12.1 4.40 10.0 ug/L EPA 6010D Client ID: 4116-SW3 Lab ID: CD00300-11 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 3.1 0.80 2.0 ug/L EPA 8260D Barium - Total 57.4 1.10 10.0 ug/L EPA 6010D Cobalt - Total 1.63 J 1.40 10.0 ug/L EPA 6010D Copper - Total 2.56 J 1.60 10.0 ug/L EPA 6010D Tetrahydrofuran 0.56 J 0.53 1.0 ug/L EPA 8260D Vanadium - Total 1.51 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 6.41 J 4.40 10.0 ug/L EPA 6010D Client ID: 4116-SW4 Lab ID: CD00300-12 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 4.1 0.80 2.0 ug/L EPA 8260D Barium - Total 56.4 1.10 10.0 ug/L EPA 6010D Cobalt - Total 1.88 J 1.40 10.0 ug/L EPA 6010D Copper - Total 2.01 J 1.60 10.0 ug/L EPA 6010D Vanadium - Total 1.91 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 4.85 J 4.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CD00300-01 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 09:10 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 14:16 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 14:16 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 14:16 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 14:16 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 14:16 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 14:16 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 14:16 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 14:16 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 14:16 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CDO0300-01 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 09:10 Work Order: CDO0300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 14:16 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 44 1 50.0 89 % 53-136 OB03025 EPA 6260D 0210412014:16 REF Dlbromofluoromethane 45 1 50.0 89 % 67-129 OB03025 EPA 6260D 0210412014:16 REF Toluene-& 42 1 50.0 84 % 59-134 OB03025 EPA 6260D 0210412014:16 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 16:50 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:13 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Barium [7440-39-3]A 41.3 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:48 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:48 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Manganese [7439-96-5]1 5.44 J ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:13 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:48 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed By Notes Chloride [16887-00-6]^ 20000 D ug/L 4 8700 20000 OB04016 EPA 300.0 02/04/20 22:04 LJI Sulfate as SO4 [14808-79-8]^ 200000 D ug/L 4 12000 20000 OB04016 EPA 300.0 02/04/20 22:04 LJI Total Alkalinity as CaCO3 [471-34-1]^ 14000 U ug/L 1 14000 15000 OB06017 EPA 310.2 02/06/20 12:45 AKF Total Dissolved Solids^ 420000 ug/L 1 50000 50000 OB03029 SM 254OC-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CD00300-01 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 09:10 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 15:40 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.3 1 5.00 106 % 75-125 OB04027 EPA 826OD 0210412015:40 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CD00300-02 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 15:19 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF QV-01 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB07021 EPA 8260D 02/07/20 20:48 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB07021 EPA 8260D 02/07/20 20:48 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 OB07021 EPA 8260D 02/07/20 20:48 REF Acetone [67-64-1]A 11 J ug/L 1 10 20 OB07021 EPA 8260D 02/07/20 20:48 REF Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 OB07021 EPA 8260D 02/07/20 20:48 REF Benzene [71-43-2]A 0.57 J ug/L 1 0.15 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB07021 EPA 8260D 02/07/20 20:48 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 OB07021 EPA 8260D 02/07/20 20:48 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF QV-01 Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB07021 EPA 8260D 02/07/20 20:48 REF Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 OB07021 EPA 8260D 02/07/20 20:48 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CD00300-02 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 15:19 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB07021 EPA 8260D 02/07/20 20:48 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 48 1 50.0 96 % 53-136 OB07021 EPA 626OD 02107120 20:48 REF Dlbromofluoromethane 49 1 50.0 99 % 67-129 OB07021 EPA 626OD 02107120 20:48 REF Toluene-& 40 1 50.0 80 % 59-134 OB07021 EPA 626OD 02107120 20:48 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 16:24 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:32 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Barium [7440-39-3]^ 431 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:05 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:05 JDH Chromium [7440-47-3]^ 2.11 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Cobalt[7440-48-4]^ 6.74 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Iron [7439-89-6]^ 13500 ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Manganese [7439-96-5]1 11700 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Nickel[7440-02-O]^ 3.71 J ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:32 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:05 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 94000 D ug/L 4 8700 20000 OB04016 EPA 300.0 02/04/20 20:18 LJI Sulfate as SO4 [14808-79-B]^ 44000 D ug/L 4 12000 20000 OB04016 EPA 300.0 02/04/20 20:18 LJI Total Alkalinity as CaCO3 [471-34-1]^ 610000 D ug/L 10 140000 150000 OB06017 EPA 310.2 02/06/20 12:41 AKF Total Dissolved Solids^ 1000000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CD00300-02 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 15:19 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes 1,4-Dioxane [123-91-1]^ 33 ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 16:05 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.9 1 5.00 98 % 75-125 OB04027 EPA 626OD 0210412016:05 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CD00300-03 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 12:16 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 14:48 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 14:48 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 14:48 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 14:48 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 14:48 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 14:48 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 14:48 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 14:48 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 14:48 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CD00300-03 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 12:16 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 14:48 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 42 1 50.0 84 % 53-136 OB03025 EPA 626OD 0210412014:48 REF Dlbromofluoromethane 46 1 50.0 91 % 67-129 OB03025 EPA 626OD 0210412014:48 REF Toluene-& 42 1 50.0 84 % 59-134 OB03025 EPA 626OD 0210412014:48 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 16:53 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:36 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Barium [7440-39-3]^ 36.8 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:50 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:50 JDH Chromium [7440-47-3]^ 2.11 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Iron [7439-89-6]^ 432 ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Manganese [7439-96-5]1 25.5 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Nickel[7440-02-O]^ 2.56 J ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:36 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:50 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 9800 ug/L 1 2200 5000 OB04016 EPA 300.0 02/04/20 22:22 LJI Sulfate as SO4 [14808-79-B]^ 12000 ug/L 1 2900 5000 OB04016 EPA 300.0 02/04/20 22:22 LJI Total Alkalinity as CaCO3 [471-34-1]^ 33000 ug/L 1 14000 15000 OB06017 EPA 310.2 02/06/20 12:46 AKF Total Dissolved Solids^ 96000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CD00300-03 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 12:16 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 OB05049 EPA 8260D 02/05/20 11:22 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.2 1 5.00 105 % 75-125 OB05049 EPA 626OD 0210512011:22 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CD00300-04 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 10:43 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB06012 EPA 8260D 02/06/20 18:02 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 0B06012 EPA 8260D 02/06/20 18:02 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB06012 EPA 8260D 02/06/20 18:02 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB06012 EPA 8260D 02/06/20 18:02 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB06012 EPA 8260D 02/06/20 18:02 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 0B06012 EPA 8260D 02/06/20 18:02 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB06012 EPA 8260D 02/06/20 18:02 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 0B06012 EPA 8260D 02/06/20 18:02 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB06012 EPA 8260D 02/06/20 18:02 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB06012 EPA 8260D 02/06/20 18:02 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CD00300-04 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 10:43 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB06012 EPA 8260D 02/06/20 18:02 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 48 1 50.0 96 % 53-136 OB06012 EPA 626OD 02106120 18:02 REF Dlbromofluoromethane 45 1 50.0 90 % 67-129 OB06012 EPA 626OD 0210612016:02 REF Toluene-& 42 1 50.0 84 % 59-134 OB06012 EPA 626OD 0210612018:02 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 16:55 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:40 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Barium [7440-39-3]^ 88.8 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:53 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:53 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Iron [7439-89-6]^ 538 ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Manganese [7439-96-5]1 37.5 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:40 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:53 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 12000 ug/L 1 2200 5000 OB04016 EPA 300.0 02/04/20 23:15 LJI Sulfate as SO4 [14808-79-B]^ 27000 ug/L 1 2900 5000 OB04016 EPA 300.0 02/04/20 23:15 LJI Total Alkalinity as CaCO3 [471-34-1]^ 14000 J ug/L 1 14000 15000 OB06017 EPA 310.2 02/06/20 12:48 AKF Total Dissolved Solids^ 80000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CD00300-04 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 10:43 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed AX Notes 1,4-Dioxane [123-91-1]^ 0.93 J ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 16:56 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.4 1 5.00 107 % 75-125 OB04027 EPA 826OD 0210412016:56 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CD00300-05 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 15:50 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 15:21 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 15:21 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 15:21 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 15:21 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 15:21 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 15:21 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 15:21 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 15:21 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 15:21 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CD00300-05 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 15:50 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 15:21 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 44 1 50.0 87 % 53-136 OB03025 EPA 626OD 02104120 15:21 REF Dlbromofluoromethane 47 1 50.0 94 % 67-129 OB03025 EPA 626OD 0210412015:21 REF Toluene-& 42 1 50.0 83 % 59-134 OB03025 EPA 626OD 0210412015:21 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 16:58 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:44 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Barium [7440-39-3]^ 51.8 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:56 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:56 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Cobalt[7440-48-4]^ 2.20 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Iron [7439-89-6]^ 45700 ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Manganese [7439-96-5]1 2000 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:44 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:56 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 5400 ug/L 1 2200 5000 OB04016 EPA 300.0 02/04/20 23:32 LJI Sulfate as SO4 [14808-79-B]^ 14000 ug/L 1 2900 5000 OB04016 EPA 300.0 02/04/20 23:32 LJI Total Alkalinity as CaCO3 [471-34-1]^ 72000 ug/L 1 14000 15000 OB06017 EPA 310.2 02/06/20 12:49 AKF Total Dissolved Solids^ 160000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CD00300-05 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 15:50 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 9.8 ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 17:22 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.1 1 5.00 102 % 75-125 OB04027 EPA 826OD 0210412017:22 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CDO0300-06 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 13:14 Work Order: CDO0300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 16:00 REF 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 16:00 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 16:00 REF Acetone [67-64-1]^ 16 J ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 16:00 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 16:00 REF Benzene [71-43-2]^ 2.2 ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Carbon disulfide [75-15-O]^ 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 16:00 REF Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 16:00 REF Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Tetrahydrofuran [109-99-9]^ 81 ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 16:00 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 16:00 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CD00300-06 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 13:14 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 16:00 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 44 1 50.0 89 % 53-136 OB03025 EPA 626OD 0210412016:00 REF Dlbromofluoromethane 45 1 50.0 90 % 67-129 OB03025 EPA 626OD 0210412016:00 REF Toluene-& 42 1 50.0 84 % 59-134 OB03025 EPA 626OD 0210412016:00 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 17:00 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:49 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Barium [7440-39-3]^ 724 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 11:58 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 11:58 JDH Chromium [7440-47-3]^ 5.79 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Cobalt[7440-48-4]^ 12.6 ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Iron [7439-89-6]^ 7690 ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Manganese [7439-96-5]1 6620 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Nickel[7440-02-O]^ 7.23 J ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:49 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 11:58 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed By Notes Chloride [16887-00-6]^ 200000 D ug/L 4 8700 20000 OB04016 EPA 300.0 02/04/20 23:50 LJI Sulfate as SO4 [14808-79-B]^ 52000 D ug/L 4 12000 20000 OB04016 EPA 300.0 02/04/20 23:50 LJI Total Alkalinity as CaCO3 [471-34-1]^ 1500000 D ug/L 10 140000 150000 OB06017 EPA 310.2 02/06/20 12:49 AKF Total Dissolved Solids^ 2100000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CDO0300-06 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 13:14 Work Order: CDO0300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 220 D ug/L 10 8.0 20 OB05049 EPA 8260D 02/05/20 17:19 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d6 5.4 1 5.00 107 % 75-125 OB05049 EPA 6260D 0210512017:19 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CD00300-07 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 11:04 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OA31032 EPA 8260D 02/03/20 18:11 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OA31032 EPA 8260D 02/03/20 18:11 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OA31032 EPA 8260D 02/03/20 18:11 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OA31032 EPA 8260D 02/03/20 18:11 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OA31032 EPA 8260D 02/03/20 18:11 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OA31032 EPA 8260D 02/03/20 18:11 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OA31032 EPA 8260D 02/03/20 18:11 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OA31032 EPA 8260D 02/03/20 18:11 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OA31032 EPA 8260D 02/03/20 18:11 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 27 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CD00300-07 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 11:04 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OA31032 EPA 8260D 02/03/20 18:11 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 93 % 53-136 OA31032 EPA 6260D 02/03/20 18:11 REF Dlbromofluoromethane 47 1 50.0 93 % 67-129 OA31032 EPA 6260D 0210312016:11 REF Toluene-& 41 1 50.0 83 % 59-134 OA31032 EPA 6260D 0210312018:11 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 17:03 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:53 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Barium [7440-39-3]^ 303 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 12:29 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 12:29 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Iron [7439-89-6]^ 24.2 J ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Manganese [7439-96-5]1 2.17 J ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Nickel[7440-02-O]^ 4.18 J ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:53 RLF Vanadium [7440-62-2]^ 10.1 ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 12:29 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 12000 ug/L 1 2200 5000 OB04016 EPA 300.0 02/05/20 00:08 LJI Sulfate as SO4 [14808-79-B]^ 41000 ug/L 1 2900 5000 OB04016 EPA 300.0 02/05/20 00:08 LJI Total Alkalinity as CaCO3 [471-34-1]^ 240000 D ug/L 2 28000 30000 OB06017 EPA 310.2 02/06/20 12:50 AKF Total Dissolved Solids^ 340000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 28 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CDO0300-07 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/29/20 11:04 Work Order: CDO0300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 1.8 J ug/L 1 0.80 2.0 OB05049 EPA 8260D 02/05/20 11:47 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d6 5.0 1 5.00 100 % 75-125 OB05049 EPA 6260D 0210512011:47 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 29 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CDO0300-08 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 09:22 Work Order: CDO0300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 16:33 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 16:33 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 16:33 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 16:33 REF Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 16:33 REF Benzene [71-43-2]A 0.57 J ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Carbon disulfide [75-15-O]A 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 16:33 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 16:33 REF Methylene chloride [75-09-2]A 0.95 J ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 16:33 REF Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 16:33 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 30 of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CD00300-08 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 09:22 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 16:33 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 44 1 50.0 89 % 53-136 OB03025 EPA 626OD 0210412016:33 REF Dlbromofluoromethane 45 1 50.0 89 % 67-129 OB03025 EPA 626OD 0210412016:33 REF Toluene-& 42 1 50.0 84 % 59-134 OB03025 EPA 626OD 0210412016:33 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 17:05 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 17:57 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Barium [7440-39-3]^ 156 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 12:45 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 12:45 JDH Chromium [7440-47-3]^ 2.57 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Cobalt[7440-48-4]^ 11.7 ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Iron [7439-89-6]^ 1010 ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Manganese [7439-96-5]1 26200 ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Nickel[7440-02-O]^ 8.97 J ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 17:57 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 12:45 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 140000 D ug/L 2 4400 10000 OB04016 EPA 300.0 02/05/20 00:25 LJI Sulfate as SO4 [14808-79-B]^ 63000 D ug/L 2 5800 10000 OB04016 EPA 300.0 02/05/20 00:25 LJI Total Alkalinity as CaCO3 [471-34-1]^ 610000 D ug/L 5 70000 75000 OB06017 EPA 310.2 02/06/20 12:51 AKF Total Dissolved Solids^ 1100000 ug/L 1 50000 50000 OB03029 SM 2540C-2011 02/04/20 14:30 JOC FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 31 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CD00300-08 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 09:22 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes 1,4-Dioxane [123-91-1]^ 32 ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 18:38 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.9 1 5.00 99 % 75-125 OB04027 EPA 626OD 0210412018:38 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 32 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW1 Lab Sample ID:CD00300-09 Received: 01/31/20 13:30 Matrix: Surface Water Sampled:01/30/20 08:50 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 17:05 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 17:05 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 17:05 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 17:05 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 17:05 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 17:05 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 17:05 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 17:05 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 17:05 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 33 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW1 Lab Sample ID:CD00300-09 Received: 01/31/20 13:30 Matrix: Surface Water Sampled:01/30/20 08:50 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 17:05 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 44 1 50.0 88 % 53-136 OB03025 EPA 626OD 0210412017:05 REF Dibromofluoromethane 46 1 50.0 91 % 67-129 OB03025 EPA 626OD 0210412017:05 REF Toluene-& 41 1 50.0 83 % 59-134 OB03025 EPA 626OD 0210412017:05 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 18:02 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Barium [7440-39-3]^ 41.3 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 12:47 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 12:47 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Copper[7440-50-8]^ 4.14 J ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Nickel[7440-02-O]^ 2.26 J ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 18:02 RLF Vanadium [7440-62-2]^ 1.49 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Zinc[744O-66-6]^ 34.8 ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 12:47 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 19:04 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.0 1 5.00 100 % 75-125 OB04027 EPA 826OD 0210412019:04 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 34 of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW2 Lab Sample ID:CD00300-10 Received: 01/31/20 13:30 Matrix: Surface Water Sampled:01/30/20 10:05 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 17:38 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 17:38 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 17:38 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 17:38 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 17:38 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 17:38 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 17:38 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 17:38 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 17:38 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 35 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW2 Lab Sample ID:CD00300-10 Received: 01/31/20 13:30 Matrix: Surface Water Sampled:01/30/20 10:05 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 17:38 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 45 1 50.0 89 % 53-136 OB03025 EPA 626OD 021041201738 REF Dibromofluoromethane 45 1 50.0 89 % 67-129 OB03025 EPA 626OD 021041201738 REF Toluene-& 40 1 50.0 80 % 59-134 OB03025 EPA 626OD 021041201738 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 18:06 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Barium [7440-39-3]^ 44.0 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 12:50 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 12:50 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Copper[7440-50-S]^ 1.77 J ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 18:06 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Zinc[744O-66-6]^ 12.1 ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 12:50 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]A 1.6 J ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 19:29 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.2 1 5.00 105 % 75-125 OB04027 EPA 826OD 0210412019:29 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 36 of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW3 Lab Sample ID:CDO0300-11 Received: 01/31/20 13:30 Matrix: Surface Water Sampled:01/30/20 10:15 Work Order: CDO0300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 18:10 REF 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 18:10 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 18:10 REF Acetone [67-64-1]^ 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 18:10 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 18:10 REF Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Carbon disulfide [75-15-O]^ 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 18:10 REF Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 18:10 REF Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Tetrahydrofuran [109-99-9]^ 0.56 1 ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 18:10 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 18:10 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 37 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW3 Lab Sample ID:CD00300-11 Received: 01/31/20 13:30 Matrix: Surface Water Sampled:01/30/20 10:15 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 18:10 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 45 1 50.0 90 % 53-136 OB03025 EPA 626OD 0210412018:10 REF Dibromofluoromethane 45 1 50.0 90 % 67-129 OB03025 EPA 626OD 0210412016:10 REF Toluene-& 41 1 50.0 82 % 59-134 OB03025 EPA 626OD 0210412018:10 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 18:10 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Barium [7440-39-3]^ 57.4 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 12:53 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 12:53 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Cobalt[7440-48-4]^ 1.63 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Copper[7440-50-8]^ 2.56 J ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 18:10 RLF Vanadium [7440-62-2]^ 1.51 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Zinc[744O-66-6]^ 6.41 J ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 12:53 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 3.1 ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 19:55 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.2 1 5.00 105 % 75-125 OB04027 EPA 826OD 0210412019:55 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 38 of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW4 Lab Sample ID:CD00300-12 Received: 01/31/20 13:30 Matrix: Surface Water Sampled:01/30/20 16:15 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 18:42 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 18:42 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 18:42 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 18:42 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 18:42 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 18:42 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 18:42 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 18:42 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 18:42 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 39 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW4 Lab Sample ID:CD00300-12 Received: 01/31/20 13:30 Matrix: Surface Water Sampled:01/30/20 16:15 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 18:42 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 45 1 50.0 91 % 53-136 OB03025 EPA 626OD 02104120 18:42 REF Dibromofluoromethane 47 1 50.0 93 % 67-129 OB03025 EPA 626OD 0210412016:42 REF Toluene-& 41 1 50.0 82 % 59-134 OB03025 EPA 626OD 0210412018:42 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 18:28 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Barium [7440-39-3]^ 56.4 ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 12:55 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 12:55 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Cobalt[7440-48-4]^ 1.88 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Copper[7440-50-8]^ 2.01 J ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 18:28 RLF Vanadium [7440-62-2]^ 1.91 J ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Zinc[744O-66-6]^ 4.85 J ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 12:55 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 4.1 ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 20:20 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffy Notes Toluene-d8 5.2 1 5.00 104 % 75-125 OB04027 EPA 826OD 02104120 20:20 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 40 of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-Field Blank Lab Sample ID:CD00300-13 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 15:48 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OB03025 EPA 8260D 02/04/20 13:11 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OB03025 EPA 8260D 02/04/20 13:11 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OB03025 EPA 8260D 02/04/20 13:11 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OB03025 EPA 8260D 02/04/20 13:11 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OB03025 EPA 8260D 02/04/20 13:11 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OB03025 EPA 8260D 02/04/20 13:11 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OB03025 EPA 8260D 02/04/20 13:11 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OB03025 EPA 8260D 02/04/20 13:11 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OB03025 EPA 8260D 02/04/20 13:11 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 41 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-Field Blank Lab Sample ID:CD00300-13 Received: 01/31/20 13:30 Matrix: Ground Water Sampled:01/30/20 15:48 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: Erik Vasko Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OB03025 EPA 8260D 02/04/20 13:11 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 91 % 53-136 OB03025 EPA 626OD 02104120 13:11 REF Dlbromofluoromethane 46 1 50.0 91 % 67-129 OB03025 EPA 626OD 02104120 13:11 REF Toluene-& 43 1 50.0 87 % 59-134 OB03025 EPA 626OD 02104120 13:11 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OB03022 EPA 7470A 02/04/20 17:08 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OA31036 EPA 6020B 02/03/20 18:32 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Barium [7440-39-3]^ 1.10 U ug/L 1 1.10 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OA31038 EPA 6010D 02/05/20 12:58 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OA31038 EPA 6010D 02/05/20 12:58 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Manganese [7439-96-5]^ 1.50 U ug/L 1 1.50 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OA31036 EPA 6020B 02/03/20 18:32 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OA31038 EPA 6010D 02/05/20 12:58 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl 1,4-Dioxane [123-91-1]^ Surrogates Toluene-d8 Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes 0.80 U ug/L 1 0.80 2.0 OB04027 EPA 8260D 02/04/20 20:46 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes 4.9 1 5.00 98 % 75-125 OB04027 EPA 826OD 02104120 20:46 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 42 Of 62 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-Trip Blank Lab Sample ID:CD00300-14 Received: 01/31/20 13:30 Matrix: Water Sampled:01/29/20 09:10 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 OA31032 EPA 8260D 02/03/20 17:07 REF 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 OA31032 EPA 8260D 02/03/20 17:07 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 OA31032 EPA 8260D 02/03/20 17:07 REF Acetone [67-64-1]A 10 u ug/L 1 10 20 OA31032 EPA 8260D 02/03/20 17:07 REF Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 OA31032 EPA 8260D 02/03/20 17:07 REF Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 OA31032 EPA 8260D 02/03/20 17:07 REF Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 OA31032 EPA 8260D 02/03/20 17:07 REF Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 OA31032 EPA 8260D 02/03/20 17:07 REF Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OA31032 EPA 8260D 02/03/20 17:07 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 43 Of 62 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-Trip Blank Lab Sample ID:CD00300-14 Received: 01/31/20 13:30 Matrix: Water Sampled:01/29/20 09:10 Work Order: CD00300 Project: GFL Env - High Point, LLC Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 OA31032 EPA 8260D 02/03/20 17:07 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 43 1 50.0 87 % 53-136 OA31032 EPA 6260D 0210312017:07 REF Dibromofluoromethane 46 1 50.0 92 % 67-129 OA31032 EPA 6260D 0210312017:07 REF Toluene-d8 41 1 50.0 82 % 59-134 OA31032 EPA 6260D 0210312017:07 REF Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 0B04027 EPA 8260D 02/04/20 21:11 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.2 1 5.00 103 % 75-125 OB04027 EPA 8260D 02104120 21:11 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 44 Of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA31O32 - EPA 5030E MS Blank (OA31032-BLK1) Prepared: 02/03/2020 11:59 Analyzed: 02/03/2020 16:34 Analvte Result Flaq POL Units 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC Level Result %REC Limits RPD RPD Limit Notes 4-Bromofluorobenzene 45 u91L 50.0 90 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 45 Of 62 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OA31O32 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OA31032-BLK1) Continued Prepared: 02/03/2020 11:59 Analyzed: 02/03/2020 16:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 46 u91L 50.0 92 67-129 Toluene-& 43 u91L 50.0 86 59-134 LCS (OA33032-BSI) Prepared: 02/03/2020 11:59 Analyzed: 02/03/2020 14:25 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 106 75-133 Benzene 16 1.0 ug/L 20.0 80 80-134 Chlorobenzene 17 1.0 ug/L 20.0 84 80-120 Toluene 22 1.0 ug/L 20.0 108 71-120 Trichloroethene 19 1.0 ug/L 20.0 95 74-120 Matrix Spike (OA33032-MS1) Prepared: 02/03/2020 11:59 Analyzed: 02/03/2020 14:57 Source: CD01508-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 97 75-133 Benzene 16 1.0 ug/L 20.0 0.15 U 81 80-134 Chlorobenzene 17 1.0 ug/L 20.0 0.17 U 83 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 95 74-120 Matrix Spike Dup (OA33032-MSDI) Prepared: 02/03/2020 11:59 Analyzed: 02/03/2020 15:29 111 Source: CD01508-04 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch OBO3O25 - EPA 5O3OB MS Result 22 18 16 18 18 Flaq POL 1.0 1.0 1.0 1.0 1.0 Units ug/L ug/L ug/L ug/L ug/L Spike Level 20.0 20.0 20.0 20.0 20.0 Source Result 0.21 U 0.15 U 0.17 U 0.14 U 0.15 U %REC 110 88 79 92 90 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 13 8 4 10 5 RPD Limit Notes 20 17 16 QM-07 17 22 Blank (OB03025-BLK3) Prepared: 02/04/2020 10:00 Analyzed: 02/04/2020 12:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 46 Of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OB03025 - EPA 5030E MS - Continued Blank (OB03025-BLK1) Continued Prepared: 02/04/2020 10:00 Analyzed: 02/04/2020 12:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 45 u91L 50.0 91 53-136 Dibromofluoromethane 47 u91L 50.0 94 67-129 Toluene-d8 41 u91L 50.0 82 59-134 LCS (OB03025-BSI) Prepared: 02/04/2020 10:00 Analyzed: 02/04/2020 10:29 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 97 75-133 Benzene 16 1.0 ug/L 20.0 82 80-134 Chlorobenzene 16 1.0 ug/L 20.0 79 80-120 Toluene 19 1.0 ug/L 20.0 97 71-120 Trichloroethene 19 1.0 ug/L 20.0 95 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 47 of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OBO3O25 - EPA 5030E MS - Continued Matrix Spike (OB03025-MS1) Prepared: 02/04/2020 10:00 Analyzed: 02/04/2020 11:01 Source: CD01508-05 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 103 75-133 Benzene 16 1.0 ug/L 20.0 0.15 U 81 80-134 Chlorobenzene 17 1.0 ug/L 20.0 0.17 U 86 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 100 71-120 Trichloroethene 18 1.0 ug/L 20.0 0.15 U 90 74-120 Matrix Spike Dup (OB03025-MSD1) Prepared: 02/04/2020 10:00 Analyzed: 02/04/2020 11:34 Source: CD01508-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 97 75-133 6 20 Benzene 16 1.0 ug/L 20.0 0.15 U 79 80-134 2 17 QM-07 Chlorobenzene 16 1.0 ug/L 20.0 0.17 U 82 80-120 5 16 Toluene 20 1.0 ug/L 20.0 0.14 U 98 71-120 2 17 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 97 74-120 7 22 Batch OBO6O12 - EPA 5030E MS Blank (OB06012-BLK3) Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 15:20 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 48 Of 62 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OBO6O12 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OB06012-BLK1) Continued Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 15:20 Analvte Result Flaq POL Units cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 45 u91L 50.0 91 53-136 Dibromofluoromethane 46 u91L 50.0 92 67-129 Toluene-d8 43 u91L 50.0 85 59-134 LCS (OB06012-BSI) Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 13:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 99 75-133 Benzene 15 1.0 ug/L 20.0 77 80-134 Chlorobenzene 16 1.0 ug/L 20.0 82 80-120 Toluene 20 1.0 ug/L 20.0 101 71-120 Trichloroethene 17 1.0 ug/L 20.0 85 74-120 Matrix Spike (OB06012-MS1) Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 13:42 Source: CD01915-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 103 75-133 Benzene 17 1.0 ug/L 20.0 0.15 U 84 80-134 Chlorobenzene 16 1.0 ug/L 20.0 0.17 U 79 80-120 QM-07 Toluene 20 1.0 ug/L 20.0 0.14 U 100 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 109 74-120 Matrix Spike Dup (OB06012-MSD1) Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 14:15 Source: CD01915-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 0.21 U 109 75-133 6 20 Benzene 17 1.0 ug/L 20.0 0.15 U 85 80-134 1 17 Chlorobenzene 17 1.0 ug/L 20.0 0.17 U 85 80-120 7 16 Toluene 20 1.0 ug/L 20.0 0.14 U 100 71-120 0.6 17 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 49 of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OBO6O12 - EPA 5030E MS - Continued Matrix Spike Dup (OB06012-MSDS) Continued Prepared: 02/06/2020 09:01 Analyzed: 02/06/2020 14:15 Source: CD01915-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Trichloroethene 20 1.0 ug/L 20.0 0.15 U 102 74-120 7 22 Batch OBO7O21 - EPA 5030E MS Blank (OB07021-BLK3) Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 17:35 Analvte Result Flaa POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 50 Of 62 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OBO7O21 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OB07021-BLK1) Continued Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 17:35 Analvte Result Flaq POL Units trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 45 u91L 50.0 91 53-136 Dibromofluoromethane 47 u91L 50.0 94 67-129 Toluene-d8 41 u91L 50.0 82 59-134 LCS (OB07021-BSI) Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 16:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 16 1.0 ug/L 20.0 78 75-133 Benzene 15 1.0 ug/L 20.0 73 80-134 Chlorobenzene 15 1.0 ug/L 20.0 76 80-120 Toluene 16 1.0 ug/L 20.0 81 71-120 Trichloroethene 15 1.0 ug/L 20.0 76 74-120 Matrix Spike (OB07021-MS1) Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 15:58 Source: CD01915-07 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 25 1.0 ug/L 20.0 0.21 U 126 75-133 Benzene 18 1.0 ug/L 20.0 0.15 U 88 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 94 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 Matrix Spike Dup (OB07021-MSDI) Prepared: 02/07/2020 13:19 Analyzed: 02/07/2020 14:31 Source: CD01915-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 117 75-133 8 20 Benzene 15 1.0 ug/L 20.0 0.15 U 75 80-134 16 17 QM-07 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 91 80-120 3 16 Toluene 22 1.0 ug/L 20.0 0.14 U 110 71-120 8 17 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 95 74-120 10 22 Metals by EPA 6000/7000 Series Methods - Quality Control Batch 08O3O22 - EPA 747OA Blank (OB03022-BLK3) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:19 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 0.150 U 0.200 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) 1 Of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch OBO3O22 - EPA 747OA - Continued LCS (OB03022-BSI) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:22 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.02 0.200 ug/L 5.00 100 80-120 Matrix Spike (OB03022-MS1) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:27 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.65 0.200 ug/L 5.00 0.150 U 93 75-125 Matrix Spike Dup (OB03022-MSD1) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:29 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.69 0.200 ug/L 5.00 0.150 U 94 75-125 0.9 25 Post Spike (OB03022-PS1) Prepared: 02/03/2020 10:57 Analyzed: 02/04/2020 16:32 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.80 0.200 ug/L 5.00 -0.0110 96 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA31O36 - EPA 3OO5A Blank (OA31036-BLK1) Prepared: 01/31/2020 14:54 Analyzed: 02/03/2020 16:35 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (OA33036-BSI) Prepared: 01/31/2020 14:54 Analyzed: 02/03/2020 16:39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.1 1.00 ug/L 20.0 106 80-120 Thallium 20.9 1.00 ug/L 20.0 104 80-120 Matrix Spike (OA33036-MS3) Prepared: 01/31/2020 14:54 Analyzed: 02/03/2020 16:44 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 45.1 2.00 ug/L 40.0 0.740 U 113 75-125 Thallium 39.9 2.00 ug/L 40.0 0.220 U 100 75-125 Matrix Spike Dup (OA33036-MSDS) Prepared: 01/31/2020 14:54 Analyzed: 02/03/2020 16:48 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 45.9 2.00 ug/L 40.0 0.740 U 115 75-125 2 20 Thallium 40.6 2.00 ug/L 40.0 0.220 U 101 75-125 2 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 52 Of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA31O36 - EPA 3OO5A - Continued Post Spike (OA31036-PS3) Prepared: O1/31/2020 14:54 Analyzed: 02/03/2020 16:52 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.1 1.00 ug/L 20.0 0.0421 110 75-125 Thallium 19.9 1.00 ug/L 20.0 0.0223 99 75-125 Batch OA31O3B - EPA 3OO5A Blank (OA31038-BLK3) Prepared: O1/31/2020 15:00 Analyzed: 02/05/2020 11:01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Iron 22.0 U 50.0 ug/L Lead 3.10 U 10.0 ug/L Manganese 1.50 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (OA33038-BSI) Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 204 10.0 ug/L 200 102 80-120 Barium 200 10.0 ug/L 200 100 80-120 Beryllium 20.9 1.00 ug/L 20.0 105 80-120 Cadmium 21.3 1.00 ug/L 20.0 107 80-120 Chromium 204 10.0 ug/L 200 102 80-120 Cobalt 206 10.0 ug/L 200 103 80-120 Copper 202 10.0 ug/L 200 101 80-120 Iron 1030 50.0 ug/L 1000 103 80-120 Lead 199 10.0 ug/L 200 100 80-120 Manganese 205 10.0 ug/L 200 103 80-120 Nickel 202 10.0 ug/L 200 101 80-120 Selenium 208 10.0 ug/L 200 104 80-120 Silver 211 10.0 ug/L 200 106 80-120 Vanadium 205 10.0 ug/L 200 103 80-120 Zinc 204 10.0 ug/L 200 102 80-120 Matrix Spike (OA33038-MS3) Prepared: O1/31/2020 15:00 Analyzed: 02/05/2020 11:12 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 212 10.0 ug/L 200 7.60 U 106 75-125 Barium 657 10.0 ug/L 200 431 113 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 53 of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA31O3B - EPA 3OO5A - Continued Matrix Spike (OA33038-MS3) Continued Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:12 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Beryllium 20.8 1.00 ug/L 20.0 0.160 U 104 75-125 Cadmium 20.4 1.00 ug/L 20.0 0.360 U 102 75-125 Chromium 207 10.0 ug/L 200 2.11 103 75-125 Cobalt 215 10.0 ug/L 200 6.74 104 75-125 Copper 214 10.0 ug/L 200 1.60 U 107 75-125 Iron 15200 50.0 ug/L 1000 13500 175 75-125 QM-07 Lead 203 10.0 ug/L 200 3.10 U 101 75-125 Manganese 12200 10.0 ug/L 200 11700 233 75-125 QM-07 Nickel 213 10.0 ug/L 200 3.71 105 75-125 Selenium 200 10.0 ug/L 200 6.20 U 100 75-125 Silver 217 10.0 ug/L 200 1.90 U 108 75-125 Vanadium 208 10.0 ug/L 200 1.40 U 104 75-125 Zinc 218 10.0 ug/L 200 4.40 U 109 75-125 Matrix Spike Dup (OA33038-MSD1) Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:14 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 199 10.0 ug/L 200 7.60 U 100 75-125 6 20 Barium 637 10.0 ug/L 200 431 103 75-125 3 20 Beryllium 20.4 1.00 ug/L 20.0 0.160 U 102 75-125 2 20 Cadmium 20.0 1.00 ug/L 20.0 0.360 U 100 75-125 2 20 Chromium 202 10.0 ug/L 200 2.11 100 75-125 3 20 Cobalt 208 10.0 ug/L 200 6.74 101 75-125 3 20 Copper 208 10.0 ug/L 200 1.60 U 104 75-125 3 20 Iron 14800 50.0 ug/L 1000 13500 133 75-125 3 20 QM-07 Lead 199 10.0 ug/L 200 3.10 U 100 75-125 2 20 Manganese 11900 10.0 ug/L 200 11700 77 75-125 3 20 Nickel 207 10.0 ug/L 200 3.71 102 75-125 3 20 Selenium 197 10.0 ug/L 200 6.20 U 98 75-125 2 20 Silver 210 10.0 ug/L 200 1.90 U 105 75-125 3 20 Vanadium 203 10.0 ug/L 200 1.40 U 101 75-125 2 20 Zinc 211 10.0 ug/L 200 4.40 U 105 75-125 3 20 Post Spike (OA31038-PS1) Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:20 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.214 0.0100 mg/L 0.200 -0.00559 107 80-120 Barium 0.650 0.0100 mg/L 0.200 0.431 109 80-120 Beryllium 0.0215 0.00100 mg/L 0.0200 -0.000231 107 80-120 Cadmium 0.0201 0.00100 mg/L 0.0200 -0.000571 101 80-120 Chromium 0.212 0.0100 mg/L 0.200 0.00211 105 80-120 Cobalt 0.212 0.0100 mg/L 0.200 0.00674 103 80-120 Copper 0.221 0.0100 mg/L 0.200 0.000570 110 80-120 Iron 14.8 0.0500 mg/L 1.00 13.5 128 80-120 QM-08 Lead 0.204 0.0100 mg/L 0.200 -0.00188 102 80-120 Manganese 11.7 0.0100 mg/L 0.200 11.7 NR 80-120 QM-08 Nickel 0.212 0.0100 mg/L 0.200 0.00371 104 80-120 Selenium 0.202 0.0100 mg/L 0.200 -0.0214 101 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 54 Of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OA3103B - EPA 3005A - Continued Post Spike (OA31038-PS3) Continued Prepared: 01/31/2020 15:00 Analyzed: 02/05/2020 11:20 Source: CDO0300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Silver 0.226 0.0100 mg/L 0.200 -0.000452 113 80-120 Vanadium 0.213 0.0100 mg/L 0.200 -0.00218 107 80-120 Zinc 0.216 0.0100 mg/L 0.200 0.00336 107 80-120 Classical Chemistry Parameters - Quality Control Batch OB03029 - NO PREP Blank (OB03029-BLK3) Prepared & Analyzed: 02/04/2020 14:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 50000 U 50000 ug/L LCS (OB03029-BSI) Prepared & Analyzed: 02/04/2020 14:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 980 50 mg/L 1000 98 80-120 Duplicate (OB03029-DUPl) Prepared & Analyzed: 02/04/2020 14:30 Source: CDO0300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 1000000 50000 ug/L 1000000 3 20 Duplicate (OB03029-DUP2) Prepared & Analyzed: 02/04/2020 14:30 Source: CC16721-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 890000 50000 ug/L 910000 2 20 Batch OB04016 - NO PREP Blank (OB04016-BLK1) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 19:43 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (OB04016-BSI) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 20:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 50000 5000 ug/L 50000 99 90-110 Sulfate as SO4 48000 5000 ug/L 50000 96 90-110 Matrix Spike (OB04016-MS1) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 20:36 Source: CDO0300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 180000 20000 ug/L 80000 94000 109 90-110 Sulfate as SO4 120000 20000 ug/L 80000 44000 97 90-110 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 55 Of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch OB04016 - NO PREP - Continued Matrix Spike (OB04016-MS2) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 21:29 Source: CDO0299-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 100000 E 5000 ug/L 20000 81000 108 90-110 Sulfate as SO4 75000 5000 ug/L 20000 54000 109 90-110 Matrix Spike Dup (OB04016-MSD1) Prepared: 02/04/2020 09:19 Analyzed: 02/04/2020 20:53 Source: CDO0300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 170000 20000 ug/L 80000 94000 101 90-110 4 10 Sulfate as SO4 120000 20000 ug/L 80000 44000 93 90-110 2 10 Batch 0806017 - NO PREP Blank (OB06017-BLK3) Prepared: 02/06/2020 09:40 Analyzed: 02/06/2020 12:40 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 14000 U 15000 ug/L LCS (OB06017-BSI) Prepared: 02/06/2020 09:40 Analyzed: 02/06/2020 12:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 100 15 mg/L 100 103 80-120 Matrix Spike (OB06017-MS3) Prepared: 02/06/2020 09:40 Analyzed: 02/06/2020 12:42 Source: CDO0300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1000000 150000 ug/L 400000 610000 110 80-120 Matrix Spike Dup (OB06017-MSD1) Prepared: 02/06/2020 09:40 Analyzed: 02/06/2020 12:43 Source: CDO0300-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1100000 150000 ug/L 400000 610000 125 80-120 6 25 QM-07 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 0804027 - EPA 5030E MS Blank (OB04027-BLK3) Prepared: 02/04/2020 00:00 Analyzed: 02/04/2020 12:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 u 2.0 ug/L Toluene-d8 5.2 ug/L 5.00 105 75-125 LCS (OB04027-BSI) Prepared: 02/04/2020 00:00 Analyzed: 02/04/2020 11:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 100 80-133 Toluene-d8 5.3 ug/L 5.00 105 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 56 Of 62 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OBO4O27 - EPA 5030E MS - Continued Matrix Spike (OB04027-MS1) Prepared: 02/04/2020 00:00 Analyzed: 02/04/2020 21:36 Source: CD00300-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 55 2.0 ug/L 25.0 33 87 80-133 Toluene-d8 5.3 u9/L 5.00 105 75-125 Matrix Spike Dup (OB04027-MSD1) Prepared: 02/04/2020 00:00 Analyzed: 02/04/2020 22:02 Source: CD00300-02 Analvte 1,4-Dioxane Spike Source Result Flag POL Units Level Result %REC 56 2.0 ug/L 25.0 33 93 %REC RPD Limits RPD Limit Notes 80-133 3 19 Toluene-d8 4.8 u9/L 5.00 97 75-125 Batch OBO5O49 - EPA 50308 MS Blank (OB05049-BLK3) Prepared: 02/05/2020 00:00 Analyzed: 02/05/2020 10:05 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-d8 5.2 u9/L 5.00 103 75-125 LCS (OB05049-BS1) Prepared: 02/05/2020 00:00 Analyzed: 02/05/2020 09:14 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 103 80-133 Toluene-d8 5.0 u9/L 5.00 99 75-125 Matrix Spike (OB05049-MS1) Prepared: 02/05/2020 00:00 Analyzed: 02/05/2020 19:01 Source: AD00776-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 4.2 87 80-133 Toluene-d8 4.9 u9/L 5.00 99 75-125 Matrix Spike Dup (OB05049-MSD1) Prepared: 02/05/2020 00:00 Analyzed: 02/05/2020 19:26 Source: AD00776-02 Spike Source %REC RPD Analvte Result Flag POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 4.2 88 80-133 0.8 19 Toluene-d8 5.0 u9/L 5.00 99 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 57 Of 62 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test). QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 58 of 62 n y [] a n t of{l 3 r 0 C m d A A A n UJ cD g��cc°°ccp Cm� aCD C G S v C) p N a w Z S Oi ^ Y Q �? m z rn CJ cry ct3 v-I � w v' 1 tpp o _ o m W C 4 � A rc C b o v [n m 4 a oFP A ry o O 6 n c> a r n a c C m 3 e o m m m r m n Q m z a Q 4 to = Z !v v C Q sj `C O m v W m n b n w �m< m� e °�x �- Wm�0 o r v T m Z m ( n m C] to o m w ll o m c o -4 y W OP on OD 1>D fj to S. a o - �a 8260D Appendix 1,82KC N o X X X X X X X X X X X �e�AMU SPA I❑ N " v o ❑ .-- C3 Ag.As.Ba,Be,Cd,Co.Gr.CooMn,NI,Pb, ° 11J X X X X X X X X 8b,5e,3a,TI.V Zn = w m 4 Cr,CU,NI,Pb.5b,Se� D m c. � o � Ag,As,Ba,Be,C+d,Co, Z X X X N $e,TI,V zn O ao Akatin3ty 310.2,ChIpMe 300,TD5 N �4 X X X X X X X X , SM2& QC A z D n �, o On L.83 N g C U] m - c. X X x X x X x x o H9 H �JNo N D 2 @ n � a x N a a _ X x x X x x X X 3 Suffate 300 K � � m m 0 m O r �2 5 j n 3 n r- ^ a m a D z m a o 4. CA ❑ CD m !v O m ]] C (D 3 0� fp Aga d min -- �� m n W ro @ v �m o 3 Q Q Q m all d ( a 9.7 N� 7 n m - C- O 'N yJ Page 59 0f 62 3 K a f m C7 v m ro 9 a o � � O y� 0 2 O w m b m n m v a m N x � v 1c m y �x O 91 WY Q C) r N V co Qm F 0 'o O nW C z m C7 Qi m 3 �^ n o W 0 } _ I = O N a i ! F— r- = 0 I X IX 8250D Appendix 1,Cl2 W E.A&ndad,02KD SMN I❑ A&As,Ba,Be,Cd,Ca,C r,Cu,Fa,Mn,N1,Pb, Sb,Se,9e,Tl,V Zn 'v Ag Ae Ba,Be,Cd,Ca,Cr,Cu.NI,Pb,$b,9e, N Se,TI,Y,Zn Akalinity3101,CK10 We300,TDS SM2b4DC in n Hg Z. o Sulfate 300 N � z � o w a G O E yS' O _ m cn tD n 9D X w 3 0 W 0 @ Q N Q 0 goo v N Z a C O tali z Z 4 n i^ J 0 'Z�AA V1 A F p n� O m s 0 ryO p 9 Z % N �Dk N 7, O W 0 m _ M a �o m En 0 2 a_ Z k �g 0 m O2 DTI a n o n N a Q 3 w N � n 0 0 O 60 of 62 Sample Preservation Verification ENCO Cary �','•,'r,�/ Work Order: CDO0300 Project: GFL Env - High Point, LLC Client: Golder Associates, Inc. (GO007) Project #: 19116638.102 Logged In: 31-Jan-20 13:43 Logged By: John C Kin '^ 1 i(ry Preservation Check Performed By: 1iV DatelTime: � �11 riD CD00300-01 Pres (pH) pH Checked 1 pH Adjusted DateMme Reagent UsedlComments Coot Type Requirement In Control Adjusted A 250mLP+HNO3 <2 Y i N I NA Y I,fN / NA CDO0300-02 Cont Type Pres (pH} FpH Checked I Control pH Adjusted DatelTime Adjusted Reagent Used/Comments Requirementn B 250mLP+HNO3 <2 Y/ N I NA Y I N 'I NA C 250mLP+HNO3 <2 Y N J NA Y N NA CDO0300-03 Tres (pH) pH Checked 1 pli. Adjusted Date.>Trne Reagent Used/Comments Cont Type Requirement in Control Adjusted A 250mLP+HNO3 <2 Y N / NA Y 1V NA CD00300-04 Cont Type Pres (pH) pH Checked 1 In Control pH Adjusted DateMme Adjusted Reagent Used/Comments Requirement A 250mLP+HNO3 <2 Y' N/ NA Y 122 NA cDoo3oa-as Pres (pH) pH Checked ! pH Adjusted Date/Time Reagent Used/Comments Cont Type Requirement in Control Adjusted A 250mLP+HNO3 <2 Y/ N I NA Y I' N 1 NA C Doo300-06 Pres (pH) pH Checked I pH Adjusted DatelTime Reagent Used/Comments Cant Type Requirement In Control Adjusted A 250mLP+HNO3 <2 Y` I N I NA Y f N I NA CDO0300-07 Pres (.pH) pH Checked I pH Adjusted Date/Time Reagent UsedlComments Cont Type Requirement In Control Adjusted A 250mLP+HNO3 <2 Y I N! NA Y I'N I NA CDO0300-08 a' Pres (pH) pH Checked t in Control pH Adjusted Datemme Adjusted Reagent Used/Comments ::;. Requirement A 250mLP+HNO3 <2 1� N / NA Y N NA f "l C:IPLMNTIPrintlwko_Preservation Check. rpt Page 61 of 62 ' Sample Preservation Verification CEOD ENCO Cary Work Order: CDO0300 Project: GFL Env - High Point, LLC Client: Golder Associates, Inc. (GO007) Project #: 19116638,102 Logged In: 31-Jan-20 13:43 Logged By: John C Kin Preservation Check Performed By: �� Date[Time: �� CD00300-09 Pres (pH) pH Checked i H Adjusted DatelTime Reagent Used/Comments Cont Type Requirement In Control p t Adjusted A 250mLP+HNO3 <2 Y` / N I NA Y 1, N. / NA CDO0300-10 Pres (pH) pH Checked( pH Adjusted Date/Time Reagent UsedlComments Cant Type Requirement In Control Adjusted A 25omLP+HNO3 <2 `Yf l N 1 NA Y! N `/ NA CDO0300-11 Cant Type Pres {pH) Requirement pH Checked I Inontrol ,C pH Adjusted DateMme Adjusted Reagent UsediC©mrnents A 250mLP+HNO3 <2 N I NA Y I N l NA CDO0300-12 Cons Type Pres (pH) pH Checked / pH Adjusted Date/Time Reagent Used/Comments Adjusted Requirement In Control A 250mLP+HNO3 <2 Y 1 N 1 NA Y! N.I NA CDQ0300-13 Pres (pH) pH Checked 1 pH Adjusted DaterTime Reagent Used/Cflmments S Cont Type Requirement In Control Adjusted A 250mLP+HNO3 <2 Y 1 N/ NA Y I.N. l NA Reagent Name ID 1 2 pH Strip ID: PH Strips C91(1061 Reagent Name ID Reagent Name ID 3 5 4 6 Page 62 of 62 f 2 CAELMNTIF...._._...__- --- —­r ,,wT.rpt WORK ORDER Printed: 2/14/2020 2:42:40PM CDO0300 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Meghan K Shea Project: GFL Env - High Point, LLC Project Number: 19116638.102 PO #: 2019: Report To: Invoice To: Golder Associates, Inc. (G0007) GFL Environmental - High Point (WA051) Darren Cox Seth Heath 5B Oak Branch Drive 5830 Riverdale Dr Greensboro, NC 27407 Jamestown, NC 27828 Phone: (336) 852-4903 Phone :(336) 886-3560 Fax: (336) 852-4904 Fax: Received By: David E. Wilder Date Received: 31-Jan-20 13:30 Logged In By: John C King Date Logged In: 31-Jan-20 13:43 Work Order Comments: C-2061 received at 0.7°C Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temperature Corrected Y Default Cooler Containers Intact Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Custody Seals Intact Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice Y Temoeratme Corrected Y Page 1 of 1 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL G O L D E R LABORATORY DATA REVIEW Page 1 of 4 Project Name: High Point C&D Landfill Project Reference Number: 20137881.101 Sampling Event Date., January 29-30, 2020 Review Date: February 17, 2020 Initials: TM Report # CD00300, CDO0299 Signature: Date: -13-70 -0 QAIQC Sign Off. Date: 3 - IS_ 2i&ZV Person(s) performing the review are to Initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: Region III Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi - Concentration, September 1994; Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility List (.500 Rules) — NC C & D List (New Rules) NC Appendix I NC Appendix I + Detects NC Appendix Il (AM-1, AMW-2, MW-6) NC Subtitle D Leachate List X Other: NC -Appendix I Mercury,Manganese, Iron Chloride Sulfate Alkalinity, TDS & Tetrahydrofuran 1.0 CHAIN OF CUSTODY (COC) REVIEW TM COC was properly signed by all parties. TM Correct project name and number are on the form. Listed as 19116638.102 > should be 20137881 TM Sample receipt condition at laboratory was acceptable, TM Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 4 2.0 SAMPLE HOLDING TIMES * GOLDER TM Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). Review Criteria Method Analytes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW TM Laboratory analyzed at least one internal blank for each method, where applicable. TM Laboratory blank is interference -free. TM Surrogate recoveries are provided for each analytical method, where applicable. TM Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). TM MS/MSD/LCS data results are provided for each analytical method. TM MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). y The Benzene and Chlorobenzene spike recoveries were outside acceptance limits for the 8260D MS and/or MSD. The QC batch was accepted based on acceptable LCS recoveries. The Alkalinity spike recovery was outside acceptance limits for the MS and /or MSD. The QC batch was accepted based on acceptable LCS recovery. y The Iron and Manganese spike recoveries were outside acceptance limits for the MS and/or MSD. The QC batch was accepted based on acceptable LCS recoveries. Iron and Manganese post -digestion spikes did not meet method requirements due to confirmed matrix effects. y (CD00300 only) The 1,2-Dichloroethane and trans -1,4-Dichloro-2-butene associated continuing calibration verification standards exhibited high bias; since the results for 4116-MW2 are non -detect, there is no impact. 4.0 ANALYTE LISTS/METHODS TM The proper number of constituents are present for each analyte list as identified above (including detects where applicable). GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL G O L D E R LABORATORY DATA REVIEW Page 3 of 4 TM Proper EPA SM 2540C-1997 analytical methods were used for analysis. 5.0 DATA REPORTING TM All analytical reporting associated with the event was performed by the contracted lab. TM Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been `flagged' with a `B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 1 OX for commonly detected laboratory contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. o No data qualification needed based on blank detections TM It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢Antimony and Thallium — all wells and SW (2x) ➢1,4-Dioxane — MW-6 (1 Ox) ➢Total Alkalinity as CaCO3 — MW-2 (10x), MW-6 (10x), MW-7S (2x), MW-8 (5x), AMW-1 (2x), AMW-2 (5x) ➢Chloride: MWA, MW-2, MW-6 (4x), MW-8 (2x), AMW-2 (2x) ➢Sulfate: MWA, MW-2, MW-6 (4x) MW-8 (2x), AMW-2 (2x) TM The report provides the reporting limit for each constituent. TM The results were reported at or below their proper reporting limits (i.e., MDLs with PQLs reported). Those that are not reported correctly are listed below (by constituent) with the proper reporting limit listed beside them. State if the reporting limit error is due to dilution. TM No organic or organic constituents were reported above their respective NC 2L Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points ➢ 1.4-Dioxane (NC 2L = 3 ua/L) o MW-2 @ 33 ug/L o MW-5 @ 9.8 ug/L o MW-6 @ 220 ug/L o MW-8 @ 32 ug/L o AMW-1 @ 25 ug/L o AMW-2 @ 45 ug/L ➢ Benzene (NC 2L = 1 ug/L) o MW-6 @ 2.2 ug/L o MW-6 @ 724 ug/L ➢ Cobalt (NC 2L IMAC = 1 ua/L) o MW-2 @ 6.74 ug/L (J) o MW-5 @ 2.20 ug/L (J) o MW-6 @ 12.6 ug/L o MW-8 @ 11.7 ug/L o AMW-1 @ 12.3 ug/L o AMW-2 @ 8.21 ug/L (J) ➢ Copper (Acute = 3.6 ug/L, Chronic ➢ Barium (NC 2L = 700 ug/L) = 2.7 ug/L) GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL G O L D E R LABORATORY DATA REVIEW Page 4 of 4 o SW-1 @ 4.14 ug/L (J) ➢ Total Dissolved Solids (NC 2L = ➢ Iron (NC 2L = 300 ug/L) 500 m /L o MW-2 @ 13500 ug/L o MW-2 @ 1000 mg/L o MW-3 @ 432 ug/L o MW-6 @ 2,100 mg/L o MW-4S @ 538 ug/L o MW-8 @ 1,100 mg/L o MW-5 @ 45700 ug/L o AMW-1 @ 750 mg/L o MW-6 @ 7690 ug/L o AMW-2 @ 540 mg/L o MW-8 @ 1010 ug/L o AMW-1 @ 10500 ug/L ➢ Vanadium (NC 2L IMAC = 0.3 o AMW-2 @ 2620 ug/L ug/L) o MW-7S @ 10.1 ug/L ➢ Manganese (NC 2L = 50 ug/L) o MW-2 @ 11700 ug/L ➢ 1,4-Dioxane (Human Health = 0.35 o MW-5 @ 2000 ug/L u /L o MW-6 @ 6620 ug/L o SW-3 @ 3.1 ug/L - o MW-8 @ 26,200 ug/L upstream o AMW-1 @ 7910 ug/L o SW-2 @ 1.6 ug/L (J) o AMW-2 @ 1850 ug/L o SW-4 @ 4.1 ug/L TM No inorganic or organic constituents were detected in a well or surface water point at quantified concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). ➢ Acetone — AMW-1 @ 12 ug/L (J) first time detection ➢ Tetrahydrofuran — SW-3 @ 0.56 ug/L (J) first time detection ➢ Xylenes — AMW-1 @ 0.46 ug/L (J) first time detection TM Other report issues/Communications with laboratory/etc.: Not enough vials remaining to analyze 4116-MW2 as a matrix spike and matrix spike duplicate for 8260D Appendix I. ➢ Benzene detection in 4116-MW6 was confirmed. � GOLDER golder.com