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HomeMy WebLinkAbout4116_Guilford_WI_GFL_HighPoint_CDLF_Aug21GW_FID1626481_202112074 GREEN FOR LIFE e n v i r o n m e n t a l December 3, 2021 Ms. Jaclynne Drummond, Hydrogeologist Department of Environmental Quality, Division of Waste Management, Solid Waste Section 2090 US Highway 70 Swannanoa, North Carolina 28778 jaclynne.drummond@ncdenr.gov RE: SECOND SEMI-ANNUAL 2021 WATER QUALITY MONITORING REPORT HIGH POINT CONSTRUCTION AND DEMOLITION LANDFILL, PERMIT NO. 41-16 Dear Ms. Drummond, WI High Point Landfill, LLC, is submitting the enclosed Water Quality Monitoring Report, which documents the results of the second semi-annual 2021 compliance monitoring event at the above -referenced facility. If you have any questions, please contact me at (724) 244-9511. Sincerely, WI High Point Landfill, LLC JowplvSa+Atta4l� Joseph Santangelo Regional Environmental Compliance Manager Enclosure C: Dusty Reedy, PG, Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, North Carolina, 27407, 336-852-4903, dreedy@golder.com Travis Hitchcock, 3301 Benson Drive, Raleigh, North Carolina, 27609. (travis.hitchcock@gflenv.com), (letter only). Bryan Wuester, Regional Landfill Manager, 7434 Roseboro Highway, Roseboro, Sampson County, North Carolina 28382, Bryan.Wuester@gflenv.com Seth Heath, General Manager, 5830 Riverdale Drive, Jamestown, North Carolina 27282, seth.heath@gflenv.com, 336-886-3560 1236 Elon Place High Point NC, 27263 Tel.:336-668-3712 Fax:336-482-3061 gflenv.com ENR USE ON JjPaper Report Electronic Data • Email CD data loaded: Yes 1 No Doc/Event #: c DENR I I Environmental Monitoring Division of Waste Management- Solid Waste ReDortina Form Notice: This form and any information attached to It are "Public Records" as defined In NO 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 that attain or exceed NC 2L groundwater standards or NO 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 notification 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 farm, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DIIVM, Solid Waste Section, 1646 Mail Servlce Center, Raleigh, NC 27899-1646, Solid Waste Monitoring Data Submittal Information M Name of entity submitting data (laboratory, consultant, facility owner): Golder Associates INC, Inc. on behalf of WI High Point Landfillr LLC Contact for questions about data formatting. Include data preparees name, telephone number and E-mail address: Name: David Y. Reed ll, PG Phone: 336-862-4903 E-mail: dreed oider.com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24. 2006) WI High Point CRD Landfill 5830 Riverdale Drive, Jamestown, NC 41-16 .0500 August 16, 17, and 30, 2021 27282 Environmental Status: (Check all that apply) ❑ InitiallBackground Monitoring ❑ Detection Monitoring Q Assessment Monitoring Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from mcnitoring wells Methane gas monitoring data Groundwater monitoring data from private water supply wells 0 Corrective action data (specify) Leachate monitoring data ❑ Surface water monitoring data 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 paints, dates, analytical values. NC 2L groundwater standard, NO 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, dales, 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 11, PG Senior Hydrogeologisl 336-852-4903 Facilit ien a not Title (Area Code) 7elephontNumber + 3 . r Affix NO Licensed! Professional Geologist Seal Signature ' 10� Date Golder Associates NC. Inc„ 5B Oak Branch Drive, Greensboro, INC 27407 Facility Representative Address C-2862 NO PE Firm License Number (if applicable effective May 1, 2009) Revised 612009 GOLDER MEMSEP OF wSP REPORT SECOND SEMI-ANNUAL 2021 WATER QUALITY MONITORING REPORT High Point Construction & Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Submitted to: WI High Point Landfill, LLC 5830 Riverdale Drive Jamestown, NC 27282 Submitted by: Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North C +1 336 852-4903 2013788121.102 December 3, 2021 December 3, 2021 Distribution List Seth Heath, General Manager, GFL Environmental Inc., 5830 Riverdale Drive, Jamestown, NC 27282, seth.heath@gflenv.com, 336-886-3560. 2013788121.102 Joseph Santangelo, Regional Environmental Compliance Manager, GFL Environmental Inc., 3301 Benson Drive, Suite 601, Raleigh, North Carolina 27609, joseph.santangelo@gflenv.com (Electronic Copy) Bryan Wuester, Regional Landfill Manager, GFL Environmental Inc., 3301 Benson Drive, Suite 601, Raleigh, NC 27609, bryan.wuester@gflenv.com. (Electronic Copy) Travis Hitchcock, Region Vice President, GFL Environmental Inc., 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. GOELDER December 3, 2021 2013788121.102 Executive Summary Golder Associates NC, Inc. (Golder) is submitting the enclosed Water Quality Monitoring Report on behalf of WI High Point Landfill, LLC, which documents the results of the August 16, 17, and 30, 2021, semi-annual compliance monitoring event at the High Point Construction and Demolition Landfill. Select wells were re -sampled on August 30, 2021 because sample coolers were lost in transit to the laboratory. Three North Carolina (NC) Appendix I inorganic constituents (barium, chromium, and cobalt) were detected at quantifiable concentrations above their applicable groundwater standards during the August 2021 event in samples from one or more downgradient wells. Cobalt and vanadium were also detected at one or more wells at estimated concentrations below their respective practical quantitation limits (PQLs) but above their Interim Maximum Allowable Concentrations (IMACs) during this event. 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. Further, NC Session Law 2021-153, all references to IMACs shall be eliminated from the Solid Waste Landfill Rules. 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), the inorganic concentrations reported in the groundwater samples are generally within natural background concentrations. Piezometer P-3, which is located upgradient of the waste unit, was sampled during the August 2021 event to collect additional inorganic constituent data to further evaluate concentrations of inorganic constituents recently detected in samples from downgradient wells. This was the fifth of ten planned sampling events. One NC Appendix I volatile organic constituent (VOC), benzene, was detected at concentrations above the NC 2L Standard in the samples from groundwater monitoring wells MW-2, MW-6, MW-8, and AMW-2 during the August 2021 event. Additionally, 1,4-dioxane was detected in the samples from MW-2, MW-4S, MW-5, MW-6, MW-7S, 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 proposed in the Assessment Monitoring Work Plan Addendum 3, which was submitted to the NC DEQ on March 26, 2021 and approved on March 30, 2021, pore water samples PWS-4, PWS-5, and PWS-6 were collected during the August 2021 event. No NC Appendix I VOCs were detected above laboratory detection limits in the samples. One Appendix I inorganic constituent, cobalt, was detected at an estimated concentration above the applicable surface water standard from downgradient surface water point SW-5 during the August 2021 event. As this value was estimated, 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 all four downstream surface water monitoring .J aaLD5P December 3, 2021 2013788121.102 points. 1,4-dioxane was also detected at an estimated concentration that exceeded the surface water standard in the sample from upstream monitoring point SW-1. As stated above, an unpermitted landfill was documented to exist approximately 2,200 feet west of the High Point C&D Landfill (Babb & Associates, 2020). Because 1,4-dioxane was detected in the upstream monitoring points above the surface water standard and there is a potential off -site upstream source, it appears that the source in surface water is not the landfill unit, and no further action is warranted. Due to the relatively low horizontal groundwater flow rates for the facility, WI High Point Landfill, LLC continues to evaluate the effects of the soil cap and landfill gas vents, which were installed in 2017, on groundwater quality along the western waste boundary at MW-2 and MW-6. Nested well pair MW-4S and MW-4D are located near the western facility boundary due southwest of the C&D landfill. Based on the data presented in Table 2, an upward component of groundwater flow is measured at MW-4S/D (i.e., the unnamed tributary is a receiving stream and benzene concentrations detected at MW-2, MW- 6, MW-8, AMW-1, and AMW-2 are not likely to extend off site). No additional NC Appendix II constituents were detected in the sample from MW-8; therefore, the well will be sampled form NC Appendix I constituents during future sampling events. 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, the Work Plan, and Addenda. The next semi-annual monitoring event is tentatively scheduled for January 2022. .J aaLD5P December 3, 2021 Table of Contents 01119M UME11% 1.0 INTRODUCTION............................................................................................................................... 5 1.1 Site Description and Background...................................................................................................5 1.2 Compliance Monitoring History.......................................................................................................5 1.3 Hydrogeologic Setting......................................................................................................................7 2.0 FIELD PROGRAM, MONITORING RESULTS AND DISCUSSION...............................................8 2.1 Visual Inspection Program...............................................................................................................8 2.2 Well Network and Groundwater Elevation Measurements.........................................................8 2.3 August 2021 Groundwater and Surface Water Monitoring Event..............................................9 2.4 Laboratory Analysis Program..........................................................................................................9 3.0 LABORATORY AND FIELD QA/QC..............................................................................................10 4.0 DATA EVALUATION......................................................................................................................10 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons................10 5.0 CONCLUSIONS..............................................................................................................................11 6.0 REFERENCES................................................................................................................................12 F-Al*4*+ 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 Pore Water Samples Table 7 Summary of Field Parameters in Pore Water Samples Table 8 Summary of Detected Constituents in Surface Water Table 9 Summary of Field Parameters in Surface Water FIGURES Figure 1 Groundwater Contour Map, August 16, 2021 APPENDICES Appendix A Groundwater and Surface Water Sampling Logs Appendix B August 2021 Groundwater and Surface Water Certificate -Of -Analysis, Chain -Of Custodies, and Laboratory Data Reviews GOEL�DER iv December 3, 2021 2013788121.102 1.0 INTRODUCTION This report summarizes the monitoring results from the August 16, 17, and 30, 2021, 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 13B.0545. Select wells were resampled on August 30, 2021 because sample coolers were lost in transit to the laboratory. 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, constructed 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. An unpermitted landfill was documented to exist approximately 2,200 feet west and upgradient of the High Point C&D Landfill (Babb & Associates, 2020). 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 six surface water sampling points, SW-1, and SW-3, which are upstream from the waste area, and SW-2, SW-4, SW-5, and SW-6, which are downstream monitoring points. Monitoring points SW-5 and SW-6 were added in the May 2019 revision of the Water Quality Monitoring Plan. These points are sampled in conjunction with the groundwater monitoring wells in accordance with the facility's permit. GOELDER December 3, 2021 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 these detections that provided evidence that an unidentified source other than landfill leachate is likely responsible for the volatile organic 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. Benzene was detected in the samples from MW-8, AMW-1, and AMW-2 at quantifiable concentrations above the NC 2L Standard during the January 2021 sampling event. Based on the January 2021 monitoring results, an Assessment Monitoring Work Plan Addendum 3 (Addendum 3) was submitted to the NC DEQ on March 26, 2021 and was approved on March 30, 2021. Addendum 3 stated that MW-8 would be sampled and analyzed for the NC Appendix II list of constituents during the second semi- annual water quality monitoring event of 2021 and that pore water samples (PWS-4, PWS-5, and PWS-6) would be collected annually from downgradient of wells MW-8, AMW-1, and AMW-2 and analyzed for NC Appendix I VOCs. The pore water sampling locations are shown on Figure 1. 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 GOELDER 6 December 3, 2021 2013788121.102 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 2 (Addendum 2) on November 8, 2019, which proposed sampling of existing piezometer P-3 for inorganic constituents over five years to establish background concentrations. The Addendum 2 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. 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 August 2021 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 August 16, 2021, 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 0.043 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. .J aaLD5P December 3, 2021 2013788121.102 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. FIELD PROGRAM, MONITORING RESULTS AND DISCUSSION Field activities conducted for the August 2021 sampling events 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 Ieachate migration (i.e., Ieachate seeps), unexplained changes in soil characteristics, and any other change to the environment due to the waste management unit. During the August 2021 compliance monitoring events, no physical indicators of a potential release were observed in the vicinity of the waste management areas. 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 four downstream (SW-2, SW-4, SW-5, and SW-6) surface water monitoring points are also monitored and are shown on Figure 1. Per Addendum 3, three pore water samples (PWS-4, PWS-5, and PWS-6) are sampled annually during the second semi-annual event 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. GOELDER December 3, 2021 2013788121.102 2.3 August 2021 Groundwater and Surface Water Monitoring Event Personnel from Golder visited the facility on August 16 and 17, 2021, 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; to sample surface water monitoring points SW-1, SW-2, SW-3, SW-4, SW-5, and SW-6; and to sample pore water samples PWS-4, PWS-5, and PWS-6. 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 level indicator prior to purging the wells. Sample coolers were lost during shipping to the laboratory. Therefore, wells MW-1, MW-3, and MW-7S were re -sampled for analysis of VOCs and AMW-2 was re -sampled for analysis of all required parameters on August 30, 2021. 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 peristaltic 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 200 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 labelled 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 labelled, laboratory - supplied, pre -preserved sample containers after purging was completed based on stabilization of field parameters. 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 overflow 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 August 16, 17, and 30, 2021 groundwater and surface water samples were delivered via FedEx and a courier to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of - custody control for analysis. As presented, the August 2021 groundwater samples from MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, 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 groundwater sample from MW-8 was analyzed for NC Appendix II list of constituents plus the C&D indicator parameters, 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 August 18 and 20, 2021 in good GOELDER December 3, 2021 011RNI1PAR11% condition and properly preserved. However, the VOC sample containers for wells MW-1, MW-3, and MW-7S and all of the sample containers for AMW-2 were lost by the courier and were not delivered to the laboratory. The missing samples were resampled on August 30, 2021 and were received by the laboratory on September 1, 2021 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 August 2021 sampling event. ENCO analyzed the field blank for the NC Appendix I list of constituents plus iron; manganese; mercury; 1,4-dioxane; and tetra hydrofuran. 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. Methylene chloride was detected in the trip blank that accompanied the samples collected on August 30, 2021 but was not detected in any of the associated samples. Based on data reviews performed by Golder, no analyses require blank qualification. 4.0 DATA EVALUATION 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons Analytical results and field parameters for the August 2021 groundwater samples are summarized in Tables 4 and 5 along with available historical data. As presented in Table 4, two NC Appendix I inorganic constituents were detected at quantifiable concentrations above their NC 2L Standards during the August 2021 event: barium at MW-2 and MW-6 and chromium at MW-8. Cobalt was also detected at a quantifiable concentration above the Interim Maximum Allowable Concentration standard (IMAC) at AMW-1 and AMW-2. The following NC Appendix I inorganic constituents were detected at estimated concentrations above their respective IMACs, as they have been previously: cobalt in the samples from MW-2, MW-6, and MW-8; and vanadium in the sample from MW-7S. 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. Further, NC Session Law 2021-153, all references to IMACs shall be eliminated from the Solid Waste Landfill Rules. 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 presented in previous reports and ASDs, the inorganic concentrations reported in the groundwater samples are generally within natural background concentrations. Further, additional analytical data are being collected from upgradient piezometer P-3 during semi-annual monitoring events to evaluate inorganic concentrations through the January 2024 event. One NC Appendix I VOC, benzene, was detected at quantifiable concentrations above the NC 2L Standard in the samples from MW-2, MW-6, MW-8, and AMW-2 during the August 2021 event. Additionally, 1,4-dioxane was detected in the samples from MW-2, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and AMW-2 at quantifiable concentrations above the groundwater protection standard; 1 GOELDER 10 December 3, 2021 2013788121.102 this constituent was analyzed per the May 30, 2018, NC DEQ memorandum and is not part of the facility permit -required testing. No NC Appendix II constituents were detected in the sample from MW-8. Generally, concentrations of low-level volatile organic constituents are consistent with historical data. Per Addendum 3, pore water samples (PWS-4, PWS-5, and PWS-6) were collected from beneath the stream bed downgradient of wells MW-8, AMW-1, and AMW-2. The locations are shown of Figure 1. The samples were analyzed for NC Appendix I VOCs. The analytical and field parameters are summarized on Tables 6 and 7. No VOCs were detected in the pore water samples during the August 2021 event. 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. Nested well pair MW-4S and MW-4D are located near the western facility boundary due southwest of the C&D landfill. Based on the data presented in Table 2, an upward component of groundwater flow is measured at MW-4S/D. Based on an evaluation of the elevation of an unnamed tributary to Richland Creek adjacent to MW-4S/D and water table elevation in MW-4S, the unnamed tributary is a receiving stream and above - standard concentrations of benzene detected at MW-2, MW-6, MW-8, and AMW-2 are unlikely to extend off site, which is further supported by the pore water sampling results. Analytical results and field parameters for the August 2021 surface water samples are summarized in Tables 8 and 9 along with available historical data. One Appendix I inorganic constituent, cobalt, was detected at an estimated concentration above the applicable surface water standard from downgradient surface water point SW-5 during the August 2021 event. As this value was estimated, 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 all four downstream surface water monitoring points. 1,4-dioxane was also detected at an estimated concentration that exceeded the surface water standard in the sample from upstream monitoring point SW-1. As stated above, an unpermitted landfill was documented to exist approximately 2,200 feet west of the High Point C&D Landfill (Babb & Associates, 2020). Because 1,4-dioxane was detected in the upstream monitoring points above the surface water standard and there is a potential off -site upstream source, it appears that the source in surface water is not the landfill unit, and no further action is warranted. 5.0 CONCLUSIONS During the August 2021 event, Golder 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 fifth of ten planned sampling events. No NC Appendix II constituents were detected in the sample from MW-8; therefore, the well will be sampled form NC Appendix I constituents during future 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 Addendums. The next groundwater monitoring event is tentatively scheduled for January 2022. GOLDER J 11 December 3, 2021 2013788121.102 REFERENCES Babb & Associates, P.A., 2020, Notification of Pre -Regulatory Waste Disposal Site; Former Jackson Lake Road Landfill, High Point, Guilford County, North Carolina. December. 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; SiteApplication, Section II; MRR of High Point, LLC Construction and Demolition Debris Landfill, High Point, North Carolina. Revised January 2003 and March 2003. NCGS (North Carolina Geologic Survey), 1985. Geologic Map of North Carolina. Smith+Gardner, Inc., 2016, Water Quality Monitoring Plan, WI High Point, LLC, Jamestown, North Carolina. Revised May 2019. United States Environmental Protection Agency, November 2003. Guidance for Developing Ecological Soil Screening Levels. J GOLDER 12 December 3, 2021 Signature Wage Golder Associates NC, Inc. ,�,�,lz d e—e;� David "Dusty" Y. Reedy II, PG Senior Hydrogeoiogist Rachel P. Kirkman, PG Principal and Senior Consultant Engineering Lie. No. C-28621Geology Lic. No. C-399 2013788121.102 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. h¢ps Ngolderassociales sharepo,nt comleilasil 413541prgjeci fdesl5 teolinieal wWklphaf& 100 wgm72nd sa wgrrJ200 deliverablesl252 final repogs issi�eOI2010783121-102-e-rava-drah 2nd sa_2021_hp_wgmr.doax GOLDER 13 Tables December 2021 TABLET 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-4D MW-5 MW-6 MW-7S MW-71D 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 07/07/20 16.55 796.62 7.19 747.66 17.96 737.52 6.45 727.31 0.00 734.23 11.18 736.65 6.44 728.79 26.50 734.70 27.90 735.37 4.20 758.40 5.95 747.33 6.95 723.62 5.34 784.72 01/19/21 16.17 797.00 6.41 748.44 16.22 739.26 5.51 728.25 0.00 734.23 10.14 737.69 6.29 728.94 25.44 735.76 27.15 736.12 2.87 759.73 5.59 747.69 5.13 725.44 4.23 785.83 08/16/21 17.78 795.39 7.20 747.65 18.95 736.53 7.29 726.47 0.00 734.23 11.60 736.23 6.38 728.85 25.83 735.37 27.69 735.58 4.64 757.96 6.03 747.25 7.38 723.19 7.62 782.44 MEAN 18.76 794.41 7.22 747.63 18.01 737.47 6.35 727.41 0.03 734.20 11.86 735.99 8.35 726.88 29.62 731.58 30.72 732.55 4.25 758.35 5.72 747.57 6.27 724.30 5.62 784.44 MAXIMUM 23.20 797.00 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 34.04 736.12 9.54 760.58 6.42 748.48 7.69 726.93 7.62 785.83 MINIMUM 16.17 789.97 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 27.15 729.23 2.02 753.06 4.80 746.86 3.64 722.88 4.23 782.44 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 44 MEMBER OF WSP 1 of 1 December 2021 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 2013788121.102 July 2021 Gradient Gradient Gradient Horizontal Effective Hydraulic Calculation Flow Segment Segment Gradient Porosity Conductivity Velocity Segment Direction Length Elevations (i, feet) (ne) (K, cm/sec) (Vgw, feet/year) feet (feet) i W 713 ------- 760------- 0.0421 0.09 1.37E-05 6.62 i 2 SW 1447 -------790------- 0.0346 0.09 1.37E-05 5.44 740 i 3 S 798 ------- 790 ----- -- 0.0501 0.09 1.37E-05 7.89 750 Notes: 1. Horizontal velocities based on the modified Darcy equation \�gw = Ki/ne 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 GOLDER MEMBER OF WBP 1 of 1 December 2021 2013788121.102 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-713 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 MEMBER OF WSP 1 of 1 December 2021 TABLE 4 2013788121.102 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 Downgradlent Parameter Reporting Sample Datc MDL MRL Reporting Blanks MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit Antimony ug/L 01/16/07 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND NC 211MAC=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 0.22 -- 6 ND - 0.953 J 0.224 J ND ND ND ND ND -- -- ND ug/L 08/12/15 0.22 -- 6 ND - ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.22 -- 6 0.277 J -- ND ND ND 0.252 J ND ND ND -- -- ND ug/L 07/14/16 0.22 -- 6 ND - 0.393 J ND ND ND ND ND ND - -- ND ug/L 01/11/17 0.37 -- 6 ND - 0.854 J ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.37 -- 6 ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.25 -- 6 ND - ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 1.85 5.0 -- ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.74 2.0 -- ND - ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.74 2.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.74 2.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.74 2.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 0.74 2.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 0.74 2.0 - ND ND ND ND ND ND ND ND ND ND - ND ug/L 08/30/21 0.74 2.0 ND ND Arsenic ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- - -- - ND NC 21 = 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 5.4 -- 10 ND -- ND ND ND ND ND ND ND -- - ND ug/L 08/12/15 6.8 -- 10 ND -- 8.12 J ND ND ND ND ND ND -- - ND ug/L 02/17/16 6.8 -- 10 ND -- 6.94 J ND ND ND 9.29 J ND ND -- - ND ug/L 07/14/16 6.8 -- 10 ND -- 9.80 J ND ND 7.81 J ND ND ND -- - ND ug/L 01/11/17 6.8 -- 10 ND -- 14.1 ND ND ND ND ND ND ND ND ND (Dissolved ug/L 01/11/17 6.8 -- 10 - -- 8.1 J -- - -- - -- - -- - -- ug/L 07/11/17 6.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 6.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 7.6 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 7.6 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 7.6 10 -- ND ND ND ND ND ND ND ND ND ND -- ND ug/L 1 08/30/21 7.6 1 10 -- -- -- -- -- -- -- -- -- -- -- 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 1.0 -- 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 1.0 -- 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 1.0 -- 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 1.0 -- 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 1.0 -- 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 1.0 -- 100 -- - 337 - -- - -- - -- - -- - ug/L 07/11/17 1.0 -- 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 1.0 -- 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 1.0 -- 100 -- - 377 - -- - -- - -- - -- ug/L 07/26/18 1.1 10 -- 36.2 - 859 32.9 71.4 61.4 551 223 125 179 312 ND ug/L 01/30/19 1.1 10 -- 37.6 -- 309 32.8 80.2 39.5 530 240 143 213 170 ND ug/L 07/10/19 1.1 10 -- 37.7 53.0 1110 55.5 124 59.1 763 252 151 157 329 2.91 J ug/L 01/29/20 1.1 10 -- 41.3 50.8 431 36.8 88.8 51.8 724 303 156 332 147 ND ug/L 07/07/20 1.1 10 - 36.0 43.2 935 39.5 72.0 40.6 687 282 136 259 256 ND ug/L 01/19/21 1.1 10 -- 38.3 57.3 657 39.0 115 36.4 814 417 174 417 199 ND ug/L 08/18/21 1.1 10 -- 34.0 48.2 1450 35.2 56.3 77.5 898 480 200 367 - ND ug/L 08/30/21 1.1 10 -- - -- - -- - -- - -- - -- 370 ND Beryllium ug/L 01/16/07 -- - 1 ND -- ND ND ND ND ND ND ND -- - ND NC 21 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 0.10 -- 1 ND - ND ND ND ND ND ND ND - -- ND ug/L 08/12/15 0.10 -- 1 ND - ND ND ND ND ND ND ND - -- ND ug/L 02/17/16 0.10 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.10 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.10 -- 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 0.16 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.16 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.16 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.16 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.16 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 0.16 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L OB/18/21 0.16 1.0 -- ND ND ND ND ND ND ND ND ND ND -- ND u /L 08/30/21 0.16 1.0 -- -- - -- - -- - -- - -- - ND ND GO !R 1 of 9 December 2021 TABLE 4 2013788121.102 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 Downgradlent Parameter Reporting Sample Date MDL MRL Reporting Blanks MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit 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 01/09/06 -- -- 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 0.36 -- 1 ND - ND ND ND ND ND ND ND - -- ND ug/L 08/12/15 0.36 -- 1 ND - ND ND ND ND ND ND ND - -- ND ug/L 02/17/16 0.36 -- 1 ND - ND ND ND ND ND ND ND - -- ND ug/L 07/14/16 0.36 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.36 1.0 - ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.36 1.0 - ND -- ND ND ND 0.483 J ND ND ND ND ND ND ug/L 07/10/19 0.36 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.36 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.36 1.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 0.36 1.0 -- ND 2.76 ND ND ND 0.368 J ND ND ND ND ND ND ug/L 08/18/21 0.36 1.0 -- ND ND ND ND ND ND ND ND ND ND -- ND ug/L 08/30/21 0.36 1.0 -- -- - -- - -- - -- - -- - ND ND 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 07/12/06 -- -- 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 1.4 -- 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 1.4 -- 10 ND -- 1.66 J ND ND ND 3.94 J ND ND -- -- ND ug/L 02/17/16 1.4 -- 10 ND -- 5.24 J 6.61 J 1.40 J ND 4.34 J ND ND -- -- ND ug/L 07/14/16 1.4 -- 10 ND -- ND ND ND ND 1.70 J ND ND -- -- ND ug/L 01/11/17 1.4 -- 10 ND -- ND ND ND ND 2.10 J ND ND ND ND ND ug/L 07/11/17 1.4 -- 10 ND -- 1.53 J ND ND ND 4.01 J ND ND ND 1.94 J ND ug/L 01/09/18 1.4 -- 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 1.4 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 1.4 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 1.4 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 1.4 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 ug/L 07/07/20 1.4 10 -- ND ND 8.88 J 8.77 J ND ND 6.80 J ND 12.3 (10.5) 4.37 J 2.95 J ND (Dissolved ug/L 07/07/20 1.4 10 -- -- - -- - -- - -- - 9.55 J - -- ug/L 01/19/21 1.4 10 -- ND 1.42 J 7.12 J 5.43 J ND ND 8.43 J 1.42 J 11.7 5.94 J 3.15 J ND ug/L 08/18/21 1.4 10 -- ND ND 6.45 J 3.14 J ND ND 7.88 J ND 13.4 5.25 J -- ND ug/L 08/30/21 1.4 10 -- -- -- -- -- -- - -- J - -- - 4.04 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 21 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 1.1 -- 10 ND -- 15.2 ND ND 2.20 J 25.3 ND 4.31 J -- - ND ug/L 08/12/15 1.1 -- 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 1.1 -- 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 1.1 -- 10 ND -- 15.6 ND ND ND 17.1 ND 4.28 J -- - ND ug/L 01/11/17 1.1 -- 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 1.1 -- 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 1.1 -- 10 - -- -- -- - -- - -- - -- 10.4 -- ug/L 01/09/18 1.1 - 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 1.4 10 - ND -- 12.8 ND 3.12 J ND 12.0 ND 12.0 12.3 19.3 ND ug/L 01/30/19 1.4 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 1.4 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 1.4 10 -- ND ND 6.74 J ND ND 2.20 J 12.6 ND 11.7 12.3 8.21 J ND ug/L 07/07/20 1.4 10 -- ND ND 9.72 J ND ND ND 4.77 J ND 9.29 J 8.92 J 10.9 ND ug/L 01/19/21 1.4 10 -- ND 2.25 J 8.19 J ND ND 1.62 J 13.9 ND 6.62 J 15.5 10.3 ND ug/L 08/18/21 1.4 10 - ND ND 9.04 J ND ND ND 5.30 J ND 6.01 J 12.8 - ND u /L 08/30/21 1.4 10 13.0 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/O 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 1.6 -- 10 4.20 J - ND ND 2.18 J ND ND ND ND - -- ND ug/L 08/12/15 1.6 -- 10 ND - ND ND ND ND 6.76 J ND 20.3 - -- ND ug/L 02/17/16 1.6 -- 10 ND - ND ND ND ND ND ND 3.28 B - -- 3.66 ug/L 07/14/16 1.6 -- 10 ND - ND ND ND ND ND ND 1.99 B - -- 3.50 J ug/L 01/11/17 1.6 -- 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 1.6 -- 10 ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 1.6 -- 10 ND - ND ND 3.97 J ND ND ND ND ND ND ND ug/L 07/26/18 1.6 10 -- ND - ND ND ND ND ND ND ND ND ND 2.02 J ug/L 01/30/19 1.6 10 -- ND -- ND ND ND ND ND ND 2.19 J ND ND ND ug/L 07/10/19 1.6 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 1.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 1.6 10 - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 1.6 10 - ND ND ND 1.68 J ND ND ND ND ND ND ND ND ug/L 08/18/21 1.6 10 - ND ND ND ND ND ND ND ND ND ND - ND ug/L 08/30/21 1.6 10 ND ND GOL!2 of December 2021 TABLE 4 2013788121.102 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 Downgradlent Parameter Reporting Sample Date MDL MRL Reporting Blanks MW-1 P-3 MW-2 MW-3 MW-45 MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit 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/O 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 3.1 1 4.5 1 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 1 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 1 ND 2.45 1 6.10 1 ND ND 1.90 1 -- -- 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 1 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 1 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 2.1 -- 10 ND - ND ND ND ND ND ND ND - -- ND ug/L 08/12/15 3.1 -- 10 ND - 5.51 1 ND ND ND 3.62 1 ND ND - -- ND ug/L 02/17/16 3.1 -- 10 ND - ND ND ND ND ND ND ND - -- ND ug/L 07/14/16 3.1 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 3.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 3.1 - 10 ND -- 5.28 1 ND ND ND ND ND ND ND ND ND ug/L 01/09/18 3.1 - 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 3.1 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 3.1 10 - ND -- ND ND ND ND ND ND 6.37 J ND ND ND ug/L 07/10/19 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 3.1 10 -- ND ND ND ND ND ND ND ND ND ND -- ND ug/L 08/30/21 3.1 10 -- -- - -- - -- - -- - -- - 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 -- -- 0.2 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 0.17 -- 0.2 ND - ND ND ND ND ND ND ND - -- ND ug/L 02/17/16 0.17 -- 0.2 ND - ND ND ND ND ND ND ND - -- ND ug/L 07/14/16 0.17 -- 0.2 ND - ND ND ND ND ND ND ND - -- ND ug/L 01/11/17 0.17 -- 0.2 ND - ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.099 -- 0.2 ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.099 -- 0.2 ND - ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.15 0.20 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.15 0.20 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.15 0.20 -- ND 0.289 ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.15 0.20 -- ND 0.222 ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.15 0.20 - 0.229 0.274 ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 0.15 0.20 - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 0.15 0.20 - ND ND ND ND ND ND ND ND ND ND - ND ug/L 08/30/21 0.15 0.20 - -- -- -- -- -- -- -- -- - -- ND ND Nickel ug/L 01/16/07 -- -- 50 3.8 J -- ND ND ND ND ND 17.2 1 ND -- -- ND NC 2L = 100 ug/L ug/L 07/02/07 -- -- 50 ND -- 3.0 1 ND ND ND ND 19.0 1 ND -- -- ND No EPA MCL ug/L 01/30/08 -- -- 50 2.5 J -- 3.6 1 2.4 1 3.7 1 6.5 1 ND 6.0 1 3.3 J -- -- ND ug/L 07/17/08 -- -- 50 2.1 J -- ND ND ND 3.8 1 ND 2.3 1 ND -- -- ND ug/L 01/14/09 -- -- 50 2.4 1 -- ND 5.1 1 5.3 1 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 1 ND ND 3.20 1 ND ND ND -- -- ND ug/L 07/01/10 -- -- 50 ND - ND ND ND ND 2.29 1 ND ND -- -- ND ug/L 01/13/11 -- -- 50 ND - ND ND ND ND 5.20 1 ND ND - -- ND ug/L 07/21/11 -- -- 50 ND - ND ND 2.44 1 ND 5.56 1 ND ND -- -- ND ug/L 01/16/12 -- -- 50 ND - ND ND ND ND 2.77 1 ND ND -- -- ND ug/L 07/09/12 -- -- 50 ND - ND ND ND ND 6.24 1 ND ND - -- ND ug/L 01/14/13 -- -- 50 ND - ND 2.05 1 ND 4.29 J 3.86 1 ND ND - -- ND ug/L 07/09/13 -- -- 50 ND - 2.37 1 ND ND ND 4.34 1 2.81 J 3.27 1 - -- ND ug/L 01/30/14 - -- 50 ND - ND ND 1.86 1 ND 5.05 1 ND 5.44 1 - -- ND ug/L 07/08/14 - -- 50 ND - 2.85 1 1.86 J 6.10 1 ND 4.71 1 ND 3.36 1 - -- ND ug/L 03/03/15 1.8 -- 50 ND - 3.01 1 ND ND ND 6.41 1 ND 3.19 1 - -- ND ug/L 08/12/15 1.8 -- 50 ND - 2.73 1 ND ND ND 5.84 1 ND 3.37 1 -- -- ND ug/L 02/17/16 1.8 -- 50 ND - ND 2.27 J ND ND 3.23 1 ND 5.44 1 -- -- ND ug/L 07/14/16 2.2 -- 50 ND - ND ND ND ND 4.27 B 2.20 B 3.63 B - -- 11.9 ug/L 01/11/17 2.2 -- 50 ND -- ND ND ND ND 4.40 1 3.14 J 4.87 1 ND 2.57 1 ND ug/L 07/11/17 2.2 -- 50 ND -- ND ND ND ND ND ND ND ND 2.60 1 ND ug/L 01/09/18 2.2 -- 50 ND -- ND 2.41 1 5.17 1 ND 4.45 1 2.42 J 2.52 1 ND 3.86 1 ND ug/L 07/26/18 2.2 10 -- 2.41 1 -- 4.88 1 2.42 1 ND ND 5.29 1 3.06 J 7.98 1 2.62 J 5.35 1 ND ug/L 01/30/19 2.2 10 -- 2.43 1 -- ND 2.41 1 ND ND 5.79 1 2.42 J 7.83 1 2.41 J 2.49 1 ND ug/L 07/10/19 2.2 10 -- ND 2.35 1 4.93 1 ND ND ND 7.14 1 3.49 1 6.67 1 ND 4.45 1 ND ug/L 01/29/20 2.2 10 - ND ND 3.71 1 2.56 1 ND ND 7.23 1 4.18 1 8.97 1 3.39 J 2.90 1 ND ug/L 07/07/20 2.2 10 - ND ND ND 2.85 1 ND ND 3.09 1 2.29 1 2.25 1 2.54 1 2.96 1 ND ug/L 01/19/21 2.2 10 - 2.64 1 2.74 1 ND 3.25 1 ND ND 7.91 1 6.23 1 5.78 1 4.18 1 3.35 1 ND ug/L 08/18/21 2.2 10 -- ND ND 3.52 1 ND ND ND 6.17 1 7.82 1 4.53 1 3.31 1 - ND ug/L 08/30/21 2.2 10 -- - -- - -- - -- - -- - -- 7.08 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 01/09/06 -- -- 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 1 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 1 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 1 ND ND ND ND ND ND - -- ND ug/L 08/12/15 5.0 -- 10 ND - ND ND ND ND ND ND ND - -- ND ug/L 02/17/16 5.0 -- 10 ND - ND ND ND ND ND ND ND - -- ND ug/L 07/14/16 6.2 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 6.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 6.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 6.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 6.2 10 - ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 6.2 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 6.2 10 -- ND ND ND ND ND ND ND ND ND ND -- ND ug/L 08/30/21 6.2 10 -- -- - I -- - -- - -- - -- - ND ND aa� R 3 of December 2021 TABLE 4 2013788121.102 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 Downgradlent Parameter Reporting Sample Date MDL MRL Reporting Blanks MW-1 P-3 MW-2 MW3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit 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 1.9 -- 10 ND - 7.35 J ND ND ND ND ND ND - -- ND ug/L 08/12/15 1.9 -- 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 1.9 -- 10 ND - ND ND ND ND ND ND ND - -- ND ug/L 07/14/16 1.9 -- 10 ND - 4.41 J ND ND ND ND ND ND - -- ND ug/L 01/11/17 1.9 -- 10 ND - 6.32 J ND ND ND ND ND 2.06 J ND ND ND ug/L 07/11/17 1.9 -- 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 1.9 -- 10 3.53 J - 15.5 J 2.41 J 4.04 J ND 5.69 J 4.13 J 9.94 J 2.72 J 3.35 J ND ug/L 07/26/18 1.9 10 -- ND - ND ND ND 14.3 ND ND ND ND ND ND ug/L 01/30/19 1.9 10 -- ND - ND 4.37 J ND ND ND ND ND ND ND ND ug/L 07/10/19 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 1.9 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 1.9 10 - ND ND ND 11.8 ND ND ND ND ND ND ND ND ug/L 01/19/21 1.9 10 - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 1.9 10 - ND ND ND ND ND ND ND 2.28 J ND ND - ND ug/L 08/30/21 1.9 10 ND ND Thallium ug/L 01/16/07 -- -- 5.5 ND -- 0.048 J ND ND ND ND ND ND -- - ND INC 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 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND -- - ND ug/L 07/14/16 0.11 -- 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 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.11 -- 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 0.05 - 5.5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.55 5.0 - ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.22 2.0 - 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 0.22 2.0 -- 0.315 J ND ND ND ND ND ND ND ND ND 0.401 J ND ug/L 01/29/20 0.22 2.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.22 2.0 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 0.22 2.0 -- 0.487 J 0.520 J 0.259 J 0.474 J 0.472 J ND ND 0.488 J 0.258 J 0.378 J 0.401 J ND ug/L 08/18/21 0.22 2.0 -- ND ND ND ND ND ND ND ND ND ND -- ND ug/L 08/30/21 0.22 2.0 -- -- - -- - -- - -- - -- -- ND ND Vanadium ug/L 01/16/07 - -- 25 7.5 J - ND ND 4.4 J ND ND 34.4 ND -- -- ND INC 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 1.4 -- 25 ND -- ND ND 6.10 J ND ND 9.36 J ND -- - ND ug/L 08/12/15 1.4 -- 25 ND -- ND ND 4.78 J ND 1.59 J 9.20 J ND -- - ND ug/L 02/17/16 1.4 -- 25 ND -- ND ND 11.2 J ND ND 9.15 J ND -- - ND ug/L 07/14/16 1.4 -- 25 ND -- ND ND 1.98 J ND 1.46 J 8.95 J ND -- - ND ug/L 01/11/17 1.4 -- 25 ND -- ND ND 7.20 J ND ND 9.24 J ND ND ND ND ug/L 07/11/17 1.4 -- 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 1.4 -- 25 ND -- ND ND 22.1 J ND ND 10.3 J ND ND ND ND ug/L 07/26/18 1.4 10 -- ND -- ND ND 1.74 J ND 1.65 J 8.76 J ND ND ND ND ug/L 01/30/19 1.4 10 -- 1.50 J -- ND ND 1.93 J ND ND 9.20 J ND ND ND ND ug/L 07/10/19 1.4 10 -- ND ND ND ND ND ND 2.04 J 9.57 J ND ND ND ND ug/L 01/29/20 1.4 10 -- ND ND ND ND ND ND ND 10.1 ND ND ND ND ug/L 07/07/20 1.4 10 -- 1.57 J ND 1.98 J ND 1.40 J ND 2.93 J 8.72 J ND ND ND ND ug/L 01/19/21 1.4 10 -- ND ND ND ND ND 1.48 J ND 7.09 J ND ND ND ND ug/L 08/18/21 1.4 10 -- ND ND ND ND ND ND ND 5.79 J ND ND - ND ug/L 08/30/21 1.4 10 ND ND 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 3.8 -- 10 ND -- ND ND 4.77 J ND ND ND ND -- -- ND ug/L 08/12/15 3.8 -- 10 ND - 4.12 J ND 8.46 J ND 15.8 ND 9.95 J -- -- ND ug/L 02/17/16 3.8 -- 10 60.0 - 5.54 J ND 25.8 6.06 J ND ND 4.75 J -- -- ND ug/L 07/14/16 4.4 -- 10 ND - ND ND ND ND ND ND ND - -- ND ug/L 01/11/17 4.4 -- 10 ND - ND ND ND ND ND ND 6.11 J ND ND ND ug/L 07/11/17 4.4 -- 10 ND - 5.01 J ND ND ND ND ND ND ND ND ND ug/L 01/09/18 4.4 -- 10 ND - ND ND 4.68 J ND ND ND 6.05 J ND ND ND ug/L 07/26/18 4.4 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 4.4 10 -- ND - ND ND ND 8.31 J ND ND ND ND ND ND ug/L 07/10/19 4.4 10 -- 5.55 J ND 6.70 J ND 4.62 J ND ND ND ND ND ND ND ug/L 01/29/20 4.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 4.4 10 -- ND ND ND 7.83 J ND ND ND 4.52 J ND ND ND ND ug/L 01/19/21 4.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 4.4 10 -- ND ND 4.66 J ND ND ND ND ND ND ND -- ND u /L 08/30/21 4.4 10 -- - -- - -- - -- - -- - -- ND ND k>GOL! 4 of December 2021 TABLE 4 2013788121.102 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 Parameter Reporting Sample Date MDL MRL Reporting Blanks MW-1 P-3 MW-2 MW3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit 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 -- 300 61.4 B -- 30800 38.2 B 1860 91700 3660 ND 6600 -- -- 73.8 ug/L 08/12/15 22 -- 300 ND -- 59100 47.7 J 1630 46200 9550 28.6 J 876 -- -- ND ug/L 02/17/16 22 -- 300 51.8 J -- 21200 100 J 2440 39400 5840 38.4 J 1020 - -- ND ug/L 07/14/16 22 -- 300 ND -- 27800 48.8 B 907 35500 6010 38.4 B 4620 - -- 23.3 J ug/L 01/11/17 22 -- 300 61.7 J -- 46000 67.1 J 4860 57000 4240 ND 2090 1590 525 ND ug/L 07/11/17 22 -- 300 29.7 J -- 33200 62.6 J 1160 44100 7870 ND 3940 1290 2590 ND (Dissolved) ug/L 07/11/17 22 -- 300 -- - -- -- -- -- -- -- -- -- 26.7 J -- ug/L 01/09/18 22 -- 300 54.9 J -- 51600 91.9 J 5770 15500 6680 33.7 J 781 1890 3950 ND ug/L 07/26/18 22 50 -- 25.3 J -- 45400 76.5 549 29500 7800 ND 1000 4750 5410 ND ug/L 01/30/19 22 50 -- 23.3 J -- 14100 41.7 J 643 35200 6900 24.1 J 2010 5730 3140 ND ug/L 07/10/19 22 50 -- 26.7 J 483 56100 66.1 835 24100 12600 55.8 3770 3440 5070 ND ug/L 01/29/20 22 50 -- ND ND 13500 432 538 45700 7690 24.2 J 1010 10500 2620 ND ug/L 07/07/20 22 50 -- 117 162 36100 355 575 33600 8510 80.3 4250 7760 4340 ND ug/L 01/19/21 22 50 -- ND 177 22800 291 1720 40200 10100 ND 5460 14900 4970 ND ug/L 08/18/21 22 50 -- ND 78.5 40100 353 946 11800 12000 39.9 J 2640 11700 -- ND ug/L 08/30/21 22 50 -- - -- -- -- - -- -- -- - -- 7020 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 1.1 -- 50 6.00 J -- 17300 16.1 J 20.4 J 2480 3120 ND 2480 -- -- ND ug/L 08/12/15 1.1 -- 50 4.21 B -- 20800 14.3 J 76.4 2410 3030 2.08 B 1670 -- -- 1.18 ug/L 02/17/16 1.1 -- 50 7.36 J -- 16800 15.8 J 53.1 2240 3530 2.26 B 2040 -- -- 1.19 ug/L 07/14/16 1.1 -- 50 5.24 B -- 18100 12.9 J 51.5 1970 3490 4.93 B 2650 -- -- 1.82 J ug/L 01/11/17 1.1 -- 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 1.1 -- 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 1.1 -- 50 -- -- -- -- -- -- -- -- 7840 2960 1570 ND ug/L 01/09/18 1.1 -- 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 1.1 -- 50 -- -- -- -- -- -- -- -- 16800 -- -- ND Verification Even ug/L 03/16/18 1.1 -- 50 -- -- -- -- -- -- -- -- 19600 -- -- ND (Dissolved ug/L 03/16/18 1.1 -- 50 -- -- -- -- -- -- -- -- 20200 -- -- ND ug/L 07/26/18 1.5 10 -- 5.21 B -- 15400 13.2 B 74.6 1800 4950 ND 19500 4740 3590 2.80 J ug/L 01/30/19 1.5 10 -- 5.24 J -- 9540 15.1 40.2 1540 4840 ND 20900 5980 1910 ND ug/L 07/10/19 1.5 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 1.5 10 -- 5.44 J 25.1 11700 25.5 37.5 2000 6620 2.17 J 26200 7910 1850 ND ug/L 07/07/20 1.5 10 -- 6.30 J 32.7 14200 59.5 94.3 1050 5740 6.26 J 20800 6630 2850 ND ug/L 01/19/21 1.5 10 -- 7.81 B 320 14600 23.1 71.3 1360 6730 12.9 28300 11100 2810 2.45 J ug/L 08/18/21 1.5 10 -- 4.48 J 91.4 11500 20.1 61.2 1600 6990 14.0 25600 8290 -- ND ug/L 08/30/21 1.5 10 -- -- -- -- -- -- -- -- - -- -- 4050 ND Acetone ug/L 01/09/O6 -- -- 100 ND -- ND ND ND ND ND - -- -- -- ND NC 2L=6000 ug/L ug/L 07/129/06 -- -- 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 07/17/0 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/08 -- -- 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/OB/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/l7/16 1.2 -- too 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 -- too 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 ug/L 07/07/20 10 20 -- ND -- 28 ND ND ND 12 J ND ND ND ND ND ug/L 01/19/21 10 20 -- ND -- 19 B ND ND ND ND ND ND ND 20 B 25 ug/L 08/18/21 10 20 -- -- -- ND -- ND ND ND - ND ND -- ND ug/L 08/30/21 10 20 -- ND -- -- ND -- -- -- ND -- - ND ND Benzene uglL 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 07/17/0 -- -- 1 ND -- ND ND ND ND ND ND ND - -- ND ug/L 01/14/08 -- -- 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 Even 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 Even 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 Even ug/L 03/16/18 0.15 -- 1 -- -- -- - -- - -- - -- - ND ND ug/L 07/26/11 0.15 1.0 -- ND -- 2.8 ND ND ND 1.7 ND 1.2 ND 1.2 ND Verification Even ug/L 09/10/18 0.15 1.0 -- -- -- 2.2 -- -- -- -- -- ND -- ND ND ug/L 01/30/11 0.15 1.0 -- 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 1.0 -- ND -- 3.3 ND ND ND 4.5 ND ND ND 1.8 ND Verification Even ug/L 10/04/19 0.15 1.0 -- ND - -- -- -- -- -- -- -- -- 2.7 ND ug/L 01/29/20 0.15 1.0 -- ND -- 0.57 J ND ND ND 2.2 ND 0.57 J 0.85 J ND ND ug/L 07/07/20 0.15 1.0 -- ND -- 2.1 ND ND ND 3.0 ND 0.97 J 0.45 J 1.7 ND ug/L 01/19/21 0.15 1.0 -- ND -- 1.9 ND ND ND 5.0 ND 1.7 1.2 1.0 ND Verification Even ug/L 02/24/21 0.15 1.0 -- ND -- -- -- -- -- -- -- 1.5 1.6 -- ND ug/L 08/18/21 0.15 1.0 -- -- -- 3.6 -- ND ND 4.7 -- 1.7 0.53 J -- ND ug/L 08/30/21 0.15 1.0 -- ND -- -- ND -- -- -- 0.44 J -- - 2.6 ND GOL!5 of December 2021 TABLE 4 2013788121.102 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 Downgradlent Parameter Reporting Sample Date MDL MRL Reporting Blanks MW-1 P-3 MW-2 MW-3 MW-45 MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit 1,1-Dichloroethane ug/L 01/09/06 -- -- 5 NO -- NO ND NO NO NO -- -- NO NC 2L=6 ug/L ug/L 07/12/06 -- -- 5 NO -- NO ND NO NO NO -- -- NO No EPA MCL ug/L 01/16/07 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 07/02/07 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 01/30/08 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 07/17/08 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 01/14/09 -- -- 5 NO -- NO NO NO NO NO -- - NO ug/L 07/16/09 -- -- 5 NO -- NO NO NO NO NO -- - NO ug/L 01/04/10 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 07/01/10 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 01/13/11 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 07/21/11 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 01/16/12 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 07/09/12 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 01/14/13 -- -- 5 NO -- NO NO NO NO NO NO NO NO ug/L 07/09/13 -- -- 5 NO - NO NO NO NO NO NO NO NO ug/L 01/30/14 -- -- 5 NO - NO NO NO NO NO NO NO NO ug/L 07/08/14 -- -- 5 NO - NO NO NO NO NO NO NO NO ug/L 03/03/15 - -- 5 NO - NO NO NO NO NO NO NO NO ug/L 08/12/15 - -- 5 NO - NO NO NO NO NO NO NO NO ug/L 02/17/16 - -- 5 NO - NO NO NO NO NO NO NO NO ug/L 07/14/16 -- -- 5 NO - NO NO NO NO NO NO NO NO ug/L 01/11/17 -- -- 5 NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/11/17 -- -- 5 NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/09/18 -- -- 5 NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/26/18 0.13 1.0 -- NO -- NO NO NO NO NO NO 0.53 1 NO NO NO ug/L 01/30/19 0.13 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/10/19 0.13 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/29/20 0.13 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/07/20 0.13 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/19/21 0.13 1.0 -- NO -- NO NO NO NO NO 0.54 1 NO NO NO NO ug/L 08/18/21 0.13 1.0 -- - -- NO -- NO NO NO -- NO NO - NO ug/L 08/30/21 0.13 1.0 NO NO 0.68 1 NO NO 1,2-Dichloroethane ug/L 01/09/06 -- -- 5 NO -- NO NO NO NO NO -- - -- -- NO NC 2L=0.4 ugA- ug/L 07/12/06 -- -- 5 NO -- NO NO NO NO NO -- -- -- -- NO EPA MCL=5 ug/L ug/L 01/16/07 -- -- 3 NO -- NO ND NO NO NO NO NO -- -- NO ug/L 07/02/07 -- -- 1 NO -- NO NO NO NO NO ND NO -- -- NO ug/L 01/30/08 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07/17/08 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 01/14/09 -- -- 1 NO -- NO NO NO NO NO -- - -- - NO ug/L 07/16/09 -- -- 1 NO -- NO NO NO NO NO -- - -- - NO ug/L 01/04/10 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07/01/10 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 01/13/11 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07/21/11 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 01/16/12 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07/09/12 -- -- 1 NO -- 0.57 J NO NO NO NO NO NO -- -- NO ug/L 01/14/13 -- -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/09/13 -- -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 01/30/14 -- -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/08/14 - -- 1 NO -- NO NO NO NO NO NO NO - -- NO ug/L 03/03/15 0.21 -- 1 NO - NO NO NO NO NO NO NO - -- NO ug/L 08/12/15 0.21 -- 1 NO - NO NO NO NO NO NO NO - -- NO ug/L 02/17/16 0.21 -- 1 NO - NO NO NO NO NO NO NO - -- NO ug/L 07/14/16 0.21 -- 1 NO - NO NO NO NO NO NO NO - -- NO ug/L 01/11/17 0.21 -- 1 NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/11/17 0.21 -- 1 NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/09/18 0.21 -- 1 NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/26/18 0.21 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/30/19 0.21 1.0 - NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/10/19 0.21 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/29/20 0.21 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/07/20 0.21 1.0 - NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/19/21 0.21 1.0 - NO -- NO NO NO NO NO NO NO NO NO NO ug/L 08/18/21 0.21 1.0 - - -- NO -- NO NO NO -- NO NO - NO ug/L 08/30/21 0.21 1.0 -- NO -- -- NO -- -- -- NO -- -- NO NO cis-1,2-Dichloroelhene ug/L 01/09/06 -- -- 5 NO -- NO NO NO NO NO -- -- -- -- NO NC 2L = 70 ug/L ug/L 07/12/06 -- -- 5 NO -- NO NO NO NO NO -- -- -- -- NO EPA MCL=70 ug/L ug/L 01/16/07 -- -- 5 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/02/07 -- -- 5 NO - NO NO NO NO NO NO NO - -- NO ug/L 01/30/08 -- -- 5 NO - NO NO NO NO NO NO NO - -- NO ug/L 07/17/08 -- -- 5 NO - NO NO NO NO NO NO NO - -- NO ug/L 01/14/09 -- -- 5 NO - NO NO NO NO NO - -- - -- NO ug/L 07/16/09 -- -- 5 NO - NO NO NO NO NO - -- - -- NO ug/L 01/04/10 -- -- 5 NO - NO NO NO NO NO NO NO - -- NO ug/L 07/01/10 -- -- 5 NO - NO NO NO NO NO NO NO - -- NO ug/L 01/13/11 -- -- 5 NO - NO NO NO NO NO NO NO - -- NO ug/L 07/21/11 -- -- 5 NO - NO NO NO NO NO NO NO - -- NO ug/L 01/16/12 -- -- 5 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/09/12 -- -- 5 NO -- 0.87 1 NO NO NO NO NO NO -- -- NO ug/L 01/14/13 -- -- 5 NO -- 0.83 1 NO NO NO NO NO NO -- -- NO ug/L 07/09/13 -- -- 5 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 01/30/14 -- -- 5 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07/08/14 -- -- 5 NO -- 0.69 1 NO NO NO NO NO NO -- - NO ug/L 03/03/15 0.15 -- 5 NO -- NO NO NO NO NO NO 0.47 1 -- - NO ug/L 08/12/15 0.15 -- 5 NO -- 0.57 J NO NO NO NO NO NO -- - NO ug/L 02/17/16 0.15 -- 5 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07/14/16 0.15 - 5 NO -- NO NO NO NO NO NO NO -- - NO ug/L 01/11/17 0.15 - 5 NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/11/17 0.15 - 5 NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/09/18 0.15 -- 5 NO -- NO NO NO NO NO NO 0.66 J NO NO NO ug/L 07/26/18 0.15 1.0 -- NO -- NO NO NO NO NO NO 1.0 NO NO NO ug/L 01/30/19 0.15 1.0 -- NO - NO NO NO NO NO NO 0.81 J NO NO NO ug/L 07/10/19 0.15 1.0 -- NO - NO NO NO NO NO NO 0.72 1 NO NO NO ug/L 01/29/20 0.15 1.0 -- NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/07/20 0.15 1.0 -- NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/19/21 0.15 1.0 -- NO - NO NO NO NO NO NO 1.3 NO NO NO ug/L 08/18/21 0.15 1.0 -- -- - NO - NO NO NO - NO NO -- NO ug/L 08/30/21 0.15 1.0 _ NO __ NO __ _ __ NO __ _ NO NO Ethylbenzene ug/L 01/09/06 -- -- 5 NO -- NO NO NO NO NO -- -- -- -- NO NC 2L=600 ug/L ugIL 07/12/06 -- -- 5 NO -- NO NO NO NO NO -- -- -- -- NO EPA MCL=700 ug/L ug/L 01/16/07 -- -- 5 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/02/07 -- -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 01/30/08 -- -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/17/08 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 01/14/09 -- -- 1 NO -- NO NO NO NO NO -- - -- - NO ug/L 07/16/09 -- -- 1 NO -- NO NO NO NO NO -- - -- - NO ug/L 01/04/10 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07I01/10 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L .1113/11 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07121/11 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 01116/12 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 07/09/12 -- -- 1 NO -- NO NO NO NO NO NO NO -- - NO ug/L 01/14113 -- -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/09113 -- -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 01/30114 -- -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/08/14 - -- 1 NO - NO NO NO NO NO NO NO - -- NO ug/L 03/03/15 0.13 -- 1 NO - NO NO NO NO NO NO NO - -- NO ugIL 08/12/15 0.13 -- 1 NO - 0.46 1 NO NO NO NO NO NO - -- NO ugIL 02/17/16 0.13 -- 1 NO - NO NO NO NO NO NO NO - -- NO ug/L 07/14/16 0.13 -- 1 NO - NO NO NO NO NO NO NO - -- NO ugIL 01/1Ill 7 0.13 -- 1 NO - NO NO NO NO NO NO NO NO NO NO ugIL 07/11/17 0.13 -- 1 NO - NO NO NO NO NO NO NO NO NO NO ugIL 01/09/18 0.13 -- 1 NO -- NO NO NO NO NO NO NO NO NO NO ugIL 07/26/18 0.13 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/30/19 0.13 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/10/19 0.13 1.0 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01/29/20 0.13 1.0 - NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07I07/20 0.13 1.0 - NO -- NO NO NO NO NO NO NO NO NO NO ug/L 01%/21 0.13 1.0 - NO -- NO NO NO NO NO NO NO NO NO NO ug/L OS118/21 0.13 1.0 - - -- NO -- NO NO NO -- NO NO - NO ug/L 08I30/21 0.13 1.0 NO NO NO NO NO GOL!6 of9 December 2021 TABLE 4 2013788121.102 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 Downgradlent Parameter Reporting Sample Date MDL MRL Reporting Blanks MW-1 P-3 MW-2 MW-3 MW-45 MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit 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 J ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.92 J 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 J 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 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.23 1.0 -- ND -- ND ND ND ND ND ND 1.2 ND ND ND ug/L 07/10/19 0.23 1.0 -- ND -- ND ND ND ND ND ND 1.2 B ND ND 0.53 1 ug/L 01/29/20 0.23 1.0 -- ND -- ND ND ND ND ND ND 0.95 J ND ND ND ug/L 07/07/20 0.23 1.0 -- ND -- ND ND ND ND ND ND 1.0 ND ND ND ug/L 01/19/21 0.23 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 0.23 1.0 -- - -- ND -- ND ND ND -- ND ND - ND ug/L 08/30/21 0.23 1.0 ND ND ND ND 0.41 1 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 J ND ND ND ND ND ND ND ND ND ug/L 07/26/18 1.3 5.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 1.3 5.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 1.3 5.0 -- ND -- 2.1 1 ND ND ND ND ND ND ND ND ND ug/L 01/29/20 1.3 5.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 1.3 5.0 -- ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 1.3 5.0 -- ND - ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 1.3 5.0 -- -- - ND - ND ND ND - ND ND -- ND ug/L 08/30/21 1.3 5.0 ND ND ND ND ND 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 1.0 -- ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.14 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.14 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.14 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.14 1.0 -- ND -- 0.50 1 ND ND ND ND ND ND ND ND ND ug/L 01/19/21 0.14 1.0 - ND -- ND ND ND ND ND ND 0.62 J ND ND ND ug/L 08/18/21 0.14 1.0 - - -- ND -- ND ND ND -- ND ND - ND ug/L 08/30/21 0.14 1.0 ND ND ND ND ND Vinyl chloride ug/L 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 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.32 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.32 1.0 -- ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.32 1.0 -- ND - ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.32 1.0 -- ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 0.32 1.0 -- ND - ND ND ND ND ND ND 0.74 J ND ND ND ug/L 08/18/21 0.32 1.0 -- -- - ND - ND ND ND - ND ND -- ND u /L 08/30/21 0.32 1.0 ND ND ND ND ND GOL!7 of9 December 2021 TABLE 4 2013788121.102 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 Downgradlent Parameter Reporting Sample Date MDL MRL Reporting Blanks MW-1 P-3 MW-2 MW-3 MW-45 MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit Xylenes (Total) ug/L 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 3.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.45 3.0 -- ND -- ND ND ND ND 0.51 1 ND ND ND ND ND ug/L 07/10/19 0.45 3.0 -- ND -- ND ND ND ND ND ND ND ND 0.64 1 ND ug/L 01/29/20 0.45 3.0 -- ND -- ND ND ND ND ND ND ND 0.46 1 ND ND ug/L 07/07/20 0.45 3.0 - ND -- 1.2 J ND ND ND ND ND ND ND 0.47 J ND ug/L 01/19/21 0.45 3.0 - ND -- ND ND ND ND ND ND ND ND ND ND ug/L 08/18/21 0.45 3.0 -- - -- ND -- ND ND ND -- ND ND - ND ug/L 08/30/21 0.45 3.0 ND ND ND ND ND 1,4-Dioxane ug/L 07/26/18 1.2 2.0 -- ND -- 67 ND 1.5 J 14 210 ND 25 16 180 ND NC 2L = 3 ug/L ug/L 01/30/19 1.2 2.0 -- ND -- 29 ND 1.3 J 3.4 290 ND 35 20 97 ND No EPA MCL ug/L 07/10/19 1.2 2.0 -- ND -- 92 ND 1.4 J 4.8 260 1.3 1 28 13 140 ND ug/L 01/29/20 0.8 2.0 -- ND -- 33 ND 0.93 d 9.8 220 1.8 1 32 25 45 ND ug/L 07/07/20 0.8 2.0 -- ND -- 71 ND 1.8 d 8.9 240 3.5 34 25 110 ND ug/L 01/19/21 0.8 2.0 -- ND -- 50 ND 2.2 3.0 200 5.8 43 35 69 ND ug/L O8/18/21 0.8 2.0 -- -- -- 110 -- 5.3 10 260 -- 60 37 -- ND ug/L O8130/21 0.8 2.0 -- 1.4 d -- -- 1.3 1 -- -- -- 12 -- -- 150 ND Tetrahydrofuran ug/L 01/13/11 -- -- -- ND -- ND ND ND ND 6.2 ND ND -- -- ND INC 2L=2000 ug/L 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 d 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 ug/L 07/07/20 0.53 1 -- ND -- ND ND ND ND 89 ND ND ND 57 ND ug/L 01/19/21 0.53 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L O8/18121 0.53 1 -- -- -- ND -- ND ND 150 -- 69 ND -- ND ug/L O8/30121 0.53 1 ND ND ND 88 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 J 10 16 15 3.3 J 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 J 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 J 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 J mg/L 07/09/13 -- -- -- 15 -- 61 4.2 J 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 J 71 5.6 42 -- -- ND mg/L 08/12/15 2.2 -- -- 21 -- 150 5.3 14 11 76 6.2 32 -- -- ND d mg/L 02/17/16 2.2 -- -- 17 -- 110 15 7.1 4.2 d 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 d 120 5.9 66 34 75 ND mg/L 07/11/17 2.2 -- - 22 -- 110 5.8 12 4.3 d 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 mg/L 07/07/20 2.2 5 - 17 -- 180 12 15 6.4 220 15 130 73 130 ND mg/L 01/19/21 2.2 5 - 16 -- 130 12 14 3.3 1 210 24 160 96 76 ND mg/L 08/18/21 2.2 5 -- 17 -- 200 10 20 12 220 38 150 100 - ND m /L O8130/21 2.2 5 -- - -- - -- - -- - -- - -- 150 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 mg/L 07/01/10 -- -- -- 270 -- 310 86 96 250 480 190 240 -- - ND 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 m9/L 01/30/19 50 50 -- 440 - 740 120 650 110 1600 300 910 490 570 ND m9/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 mg/L 07/07/20 50 50 -- 420 -- 1700 110 130 140 2300 390 1000 730 1200 ND mg/L 01/19/21 50 50 -- 450 -- 1400 110 110 120 2300 450 1200 970 760 ND mg/L 08/18/21 50 50 -- 400 -- 1900 82 110 220 2400 520 1200 350 -- ND m /L 08/30/21 50 50 -- -- -- -- -- -- -- -- -- -- -- 1400 ND 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 1 -- 24 1 5.9 J 23 1 79 J 26 1 10 J 9.2 1 -- -- ND mg/L 07/17/08 -- -- 250 62 1 -- 41 1 8.9 d 23 1 39 J 73 1 14 J 14 1 -- -- ND mg/L 01/14/09 -- -- 250 66 1 -- 54 1 11 d 21 1 24 J 73 1 - -- - -- ND mg/L 07/16/09 -- -- 250 74 1 -- 36 1 8.3 0 33 1 33 J 100 - -- - -- ND mg/L 01/04/10 -- -- 250 95 1 -- 37 1 11 d 26 1 25 J 110 1 12 J 19 1 - -- ND mg/L 07/01/10 -- -- 250 93 1 -- 41 1 9.6 J 27 1 22 J 150 1 13 J 23 1 - -- ND mg/L 01/13/11 -- -- 250 99 1 -- 42 1 10 J 44 1 13 J 140 1 14 J 36 1 - -- ND mg/L 07/21/11 -- -- 250 110 1 -- 66 1 8.3 J 40 1 25 J 140 1 15 J 46 1 - -- ND mg/L 01/16/12 -- -- 250 100 1 -- 55 1 9.1 J 23 1 13 J 130 1 18 J 50 1 - -- ND mg/L 07/09/12 -- -- 250 110 1 - 26 1 7.9 J 40 1 31 J 190 1 20 J 56 1 - -- ND mg/L 01/14/13 -- -- 250 120 1 - 55 1 13 J 58 1 9.6 J 190 1 23 J 62 1 - -- ND mg/L 07/09/13 -- -- 250 140 1 -- 55 1 8.6 J 37 1 17 J 180 1 24 J 71 1 - -- 1.6 mg/L 01/30/14 -- -- 250 160 1 -- 68 1 15 J 52 1 6.4 J 200 1 28 J 67 1 - -- ND mg/L 07/08/14 -- -- 250 150 1 -- 45 1 11 J 49 1 26 J 210 1 28 J 87 1 - -- ND mg/L 03/03/15 2.9 -- 250 170 1 -- 57 1 11 J 31 1 13 J 270 35 d 92 1 - -- ND mg/L 08/12/15 2.9 -- 250 160 1 -- 26 1 8.6 J 71 1 19 J 210 1 35 1 54 1 - -- ND mg/L 02/17/16 2.9 -- 250 200 1 -- 34 1 15 J 31 1 14 J 200 1 38 1 54 1 - -- ND mg/L 07/14/16 2.9 -- 250 210 1 -- 73 1 10 J 56 1 28 J 240 1 45 1 53 1 - -- ND mg/L 01/11/17 2.9 -- 250 210 1 -- 27 1 9.6 J 43 1 8.3 J 220 1 43 1 51 1 56 J 120 1 ND mg/L 07/11/17 2.9 -- 250 220 -- 22 1 9.9 J 39 1 11 J 150 1 46 1 54 1 34 J 99 1 ND mg/L 01/09/18 2.9 -- 250 220 1 -- 23 1 8.6 J 41 1 36 J 130 1 47 d 60 1 71 J 150 1 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 mg/L 01/29/20 2.9 5 -- 200 -- 44 12 27 14 52 41 63 54 39 ND mg/L 07/07/20 2.9 5 -- 200 -- 20 11 30 14 47 41 60 38 55 ND mg/L 01/19/21 2.9 5 -- 200 -- 22 13 22 10 43 43 53 33 37 ND mg/L 08'18'21 2.9 5 -- 190 -- 12 11 31 49 37 43 58 40 - ND m /L 08/30/21 2.9 5 -- - -- - -- - -- - -- - -- 66 ND GOL!8 of December 2021 TABLE 4 2013788121.102 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Parameter Reporting Sample Date MDL MRL SWS Reporting Upgradient Downgradlent Blanks MW-1 P-3 MW-2 MW-3 MW-4S MW5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Limit 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 mg/L 07/07/20 14 15 -- ND -- 1300 30 ND 86 1600 270 600 450 760 ND mg/L 01/19/21 14 15 — 14 J -- 1000 39 ND 77 1600 310 680 700 420 ND mg/L O8118/21 14 15 -- 22 -- 1500 30 23 130 1800 360 660 450 -- ND m /L O8/30/21 14 15 -- -- -- -- -- -- -- -- -- -- -- 980 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 B. -- = 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. Data in parentheses are re-analsyes results. 18. The following dilutions were noted for the August 2021 event: Antimony and Thallium — all locations (2x); 1,4-Dioxane — MW-2, AMW-2 (Sx), MW-6 (xl0); Total Alkalinity as CaCO3 — MW-7S (x5), MW-2, MW-6, MW-8, AMW-1, AMW-2 (x10); Chloride: MW-1, MW-3, MW4s, MW-5, MW-7S (x2), MW-8, AMW-1 (x5), MW-6, AMW-2 (x10), MW-2, MW-6, (x25); Sulfate: MW-3, MW4S, MW-5, MW-7S (x2), MW-1, MW-8, AMW-1 (x5), MW-6, AMW-2 (x10); Total Dissolved Solids: MW-2, MW-6 (2x). GOL!9 Of December2021 TABLE 5 2013788121.102 Summary of Field Parameters in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upgradient Downgradient MW-1 P-3 MW-2 MW3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Parameter Units Date 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 S.U. 07/07/20 5.26 5.31 6.50 5.47 5.26 6.14 6.40 6.27 6.10 6.45 6.22 S.U. 01/19/21 5.57 5.45 6.62 5.68 5.21 6.17 6.70 6.26 6.29 6.49 6.39 (Verification Event) S.U. 02/24/21 -- - -- - -- - -- - 6.23 6.47 -- S.U. 08/16/21 5.73 5.83 6.91 6.45 6.21 7.02 6..88 6.53 7.71 7.05 -- S.U. 08/30/21 5.50 5.68 6.55 6.30 6.46 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 us/cm 07/07/20 600 162 2109 140 179 261 2664 510 1378 1203 1563 us/cm 01/19/21 545 211 1610 187 169 276 2029 610 1278 1386 713 Verification Event us/cm 02/24/21 -- - -- - -- - -- - 1817 1674 -- us/cm 08/16/21 618 164 2032 163 197 380 2748 806 1449 1260 -- us/cm 08/30/21 501 107 3065 756 1955 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 °C 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 °C 07/07/20 19.2 18.3 18.4 16.8 16.4 20.7 19.8 17.3 18.6 18.0 20.0 °C 01/19/21 14.3 14.9 12.7 13.5 12.6 12.2 12.6 13.6 12.1 12.2 10.5 Verification Event °C 02/24/21 -- - -- - -- - -- - 12.9 12.8 -- °C 08/16/21 19.8 18.0 18.6 17.7 18.4 19.7 20.4 17.3 18.1 18.4 -- °C 08/30/21 20.5 17.9 20.9 18.3 20.3 GOLDER MEMBER l- 1 of 2 December2021 TABLE 5 2013788121.102 Summary of Field Parameters in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample 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 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 NTU 07/07/20 3.69 8.72 4.48 3.43 6.26 9.65 6.13 2.49 1.40 8.78 8.72 NTU 01/19/21 1.49 9.76 9.54 3.38 9.93 9.87 9.54 1.84 9.25 9.67 8.50 Verification Event NTU 02/24/21 -- -- -- -- -- -- -- -- 5.23 8.25 -- NTU 08/16/21 0.54 6.77 9.87 2.12 5.34 2.57 2.27 2.00 1.31 9.14 -- NTU 08/30/21 0.24 -- -- 1.97 -- -- 1.44 4.70 -- -- 5.01 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 mV 07/07/20 245.2 535.5 -98.5 147.0 152.8 -73.1 -70.3 115.4 -62.3 -56.9 -30.6 mV 01/19/21 202.0 102.3 -83.0 74.6 86.9 -66.1 -77.5 71.8 -54.8 -52.1 -42.7 Verification Event mV 02/24/21 -- -- -- -- -- -- -- -- -61.2 -68.6 -- mV 08/16/21 249.5 253.3 -60.0 219.1 153.0 -47.5 -63.8 151.7 -10.2 -23.9 -- mV 08/30/21 228.8 217.2 -56.8 141.5 -10.9 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 mg/L 07/07/20 3.43 0.33 1.11 5.37 0.95 0.23 0.39 1.05 0.39 0.31 0.31 mg/L 01/19/21 3.21 0.63 0.18 3.37 1.40 0.41 0.17 0.51 0.54 0.48 0.24 Verification Event mg/L 02/24/21 - -- -- -- - -- - -- 5.79 1.66 - mg/L 08/16/21 2.93 0.33 0.95 3.58 0.26 0.26 0.26 0.52 0.18 1.89 - mg/L 08/30/21 6.90 4.20 0.09 1.89 1.39 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 MEMBER OF w- 2of2 December 2021 2013788121.102 TABLE 6 Summary of Detected Constituents in Pore Water Samples Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Parameter Units Sample Date MDL MRL PWS-4 PWS-5 PWS-6 Blanks Acetone ug/L 08/18/21 10 20 ND ND ND ND Acrylonitrile ug/L 08/18/21 3.5 10 ND ND ND ND Benzene ug/L 08/18/21 0.15 1.0 ND ND ND ND Bromochloromethane ug/L 08/18/21 0.48 1.0 ND ND ND ND Bromodichloromethane ug/L 08/18/21 0.17 1.0 ND ND ND ND Bromoform ug/L 08/18/21 0.22 1.0 ND ND ND ND Carbon disulfide ug/L 08/18/21 1.5 5.0 ND ND ND ND Carbon tetrachloride ug/L 08/18/21 0.17 1.0 ND ND ND ND Chlorobenzene ug/L 08/18/21 0.17 1.0 ND ND ND ND Chloroethane ug/L 08/18/21 0.23 1.0 ND ND ND ND Chloroform ug/L 08/18/21 0.18 1.0 ND ND ND ND Dibromochloromethane ug/L 08/18/21 0.17 1.0 ND ND ND ND 1,2-Dibromo-3-chloropropane ug/L 08/18/21 0.48 1.0 ND ND ND ND 1,2-Dibromoethane ug/L 08/18/21 0.66 1.0 ND ND ND ND 1,2-Dichlorobenzene ug/L 08/18/21 0.19 1.0 ND ND ND ND 1,4-Dichlorobenzene ug/L 08/18/21 0.19 1.0 ND ND ND ND trans-1,4-Dichloro-2-butene ug/L 08/18/21 0.70 1.0 ND ND ND ND 1,1-Dichloroethane ug/L 08/18/21 0.13 1.0 ND ND ND ND 1,2-Dichloroethane ug/L 08/18/21 0.21 1.0 ND ND ND ND 1,1-Dichloroethene ug/L 08/18/21 0.21 1.0 ND ND ND ND cis- 1,2-Dichloroethene ug/L 08/18/21 0.15 1.0 ND ND ND ND trans- 1,2-Dichloroethene ug/L 08/18/21 0.21 1.0 ND ND ND ND 1,2-Dichloropropane ug/L 08/18/21 0.10 1.0 ND ND ND ND cis- 1,3-Dichloropropene ug/L 08/18/21 0.20 1.0 ND ND ND ND trans- 1,3-Dichloropropene ug/L 08/18/21 0.15 1.0 ND ND ND ND Ethylbenzene ug/L 08/18/21 0.13 1.0 ND ND ND ND 2-Hexanone ug/L 08/18/21 0.88 5.0 ND ND ND ND Bromomethane ug/L 08/18/21 0.14 1.0 ND ND ND ND Chloromethane ug/L 08/18/21 0.13 1.0 ND ND ND ND Dibromomethane ug/L 08/18/21 0.27 1.0 ND ND ND ND Methylene chloride ug/L 08/18/21 0.23 1.0 ND ND ND ND 2-Butanone ug/L 08/18/21 1.3 5.0 ND ND ND ND lodomethane ug/L 08/18/21 1.7 5.0 ND ND ND ND 4-Methyl-2-pentanone ug/L 08/18/21 1.1 5.0 ND ND ND ND Styrene ug/L 08/18/21 0.11 1.0 ND ND ND ND 1,1,1,2-Tetrachloroethane ug/L 08/18/21 0.17 1.0 ND ND ND ND 1,1,2,2-Tetrachloroethane ug/L 08/18/21 0.28 1.0 ND ND ND ND Tetrachloroethene ug/L 08/18/21 0.17 1.0 ND ND ND ND Toluene ug/L 08/18/21 0.14 1.0 ND ND ND ND 1,1,1-Trichloroethane ug/L 08/18/21 0.12 1.0 ND ND ND ND Trichloroethene ug/L 08/18/21 0.15 1.0 ND ND ND ND 1,1,2-Trichloroethane ug/L 08/18/21 0.14 1.0 ND ND ND ND Trichlorofluoromethane ug/L 08/18/21 0.24 1.0 ND ND ND ND 1,2,3-Trichloropropane ug/L 08/18/21 0.23 1.0 ND ND ND ND Vinyl acetate ug/L 08/18/21 0.95 5.0 ND ND ND ND Vinyl chloride ug/L 08/18/21 0.32 1.0 ND ND ND ND X lenes Total u /L 08/18/21 0.45 3.0 ND ND ND ND Notes: 1. PWS = pore water sample 2. ug/L = micrograms per liter 3. ND = not detected at or above the stated reporting limit 4. Blanks = Field, trip, and laboratory blanks. GOLDER MEMBER OF WSP 1 of 1 December 2021 TABLE 7 Summary of Field Parameters in Pore Water Samples Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina 2013788121.102 Parameter Units Sample Date MDL MRL PWS-4 PWS-5 PWS-6 Blanks pH (Field) S.U. 08/18/21 10 20 6.68 6.98 6.25 ND Specific Conductance (Field) us/cm 08/18/21 3.5 10 362 268 931 ND Temperature (Field) °C 08/18/21 0.15 1.0 22.8 23.6 22.6 ND Turbidity (Field) NTU 08/18/21 0.48 1.0 116 724 291 ND Oxidation Reduction Potential (Field) my 08/18/21 0.17 1.0 -31.6 3.40 -49.6 ND Dissolved Oxygen Field m /L 1 08/18/21 1 0.22 1 1.0 1 0.99 3.48 1.07 ND Notes: 1. PWS = pore water sample 2. mg/L = milligrams per liter 3. S.U. = Standard Units 4. NTU = Nephelometric Turbidity Units 5. uS = microsiemens GOLDER 4*> MEMBER OF WSP 1 of 1 December 2021 2013788121.102 TABLES 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 SW-5 SW-6 Antimony ug/L 01/16/07 - - 6 ND ND ND ND - - ND Human Health Standard - 640 ug/L u9/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 0.22 -- 6 ND 0.255 J ND ND - - ND ug/L 08/12/15 0.22 -- 6 dry ND dry ND - - ND ug/L 02/17/16 0.22 -- 6 ND ND ND 8.13 J - - ND ug/L 07/14/16 0.22 -- 6 ND ND ND ND - - ND ug/L 01/11/17 0.37 -- 6 ND ND 0.553 J 0.413 J - - ND ug/L 07/11/17 0.37 -- 6 dry dry ND ND - - ND ug/L 01/09/18 0.25 -- 6 ND ND ND ND - - ND ug/L 07/26/18 1.85 5.0 -- dry ND dry ND - - ND ug/L 01/30/19 0.74 2.0 -- ND ND ND ND - - ND ug/L 07/10/19 0.74 2.0 -- ND ND dry ND - - ND ug/L 01/30/20 0.74 2.0 -- ND ND ND ND - - ND ug/L 07/07/20 0.74 2.0 -- dry ND dry ND - - ND ug/L 01/19/21 0.74 2.0 -- ND ND ND ND - - ND ug/L 08/18/21 1 0.74 1 2.0 0,892 J ND 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/O6 - - 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 5.4 -- 10 ND ND ND ND - - ND ug/L 08/12/15 6.6 -- 10 dry ND dry ND - - ND ug/L 02/17/16 6.8 -- 10 ND ND ND ND - - ND ug/L 07/14/16 6.8 -- 10 6.91 J ND ND ND - - ND ug/L 01/l 1/17 6.8 -- 10 ND ND ND ND - - ND ug/L 07/11/17 6.8 -- 10 dry dry ND ND - - ND ug/L 01/09/18 6.8 -- 10 ND ND ND ND - - ND ug/L 07/26/18 7.6 10 -- dry ND dry ND - - ND ug/L 01/30/19 7.6 10 -- ND ND ND ND - - ND ug/L 07/10/19 7.6 10 -- ND ND dry ND - - ND ug/L 01/30/20 7.6 10 -- ND ND ND ND -- -- ND ug/L 07/07/20 7.6 10 -- dry ND dry ND -- -- ND ug/L 01/19/21 7.6 10 -- ND ND ND ND -- -- ND ug/L 08/18/21 1 7.6 1 10 ND ND 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 4974 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 564 J 90.0 J -- -- 1.46 J ug/L 07/09/13 - - 100 73.5 J 58.3 J 612 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 1.0 - 100 47.0 J 82.6 J 45.8 J 60.9 J -- -- 3.04 J ug/L 08/12/15 1.0 - 100 dry 163 dry 167 -- -- 2.33 J ug/L 02/17/16 1.0 - 100 39.3 J 77.0 J 40.9 J 815 -- -- ND ug/L 07/14/i6 1.0 - 100 79.0 J 57.3 J 120 76.0 J - - 1.51 J ug/L O1/11/17 1.0 - 100 71.4 J 56.2 J 91.0 J 85.3 J - - ND ug/L 07/11/17 1.0 -- 100 dry dry 80.6 J 58.7 J - - 1.39 J ug/L 01/09/18 1.0 100 106 101 85.0 J 65.9 J - - ND ug/L 07/26/18 1.1 10 -- dry 70.9 dry 72.1 - - ND ug/L 01/30/19 1.1 10 -- 36.5 52.0 39.7 41.8 - - ND ug/L 07/10/19 1.1 10 -- 77.5 73.1 dry 52.7 - - 2.91 J ug/L 01/30/20 1.1 10 -- 41.3 57.4 44.0 56.4 - - ND ug/L 07/07/20 1.1 10 -- dry 61.1 dry 40.7 - - ND ug/L 01/19/21 1.1 10 -- 43.0 60.6 49.1 51.2 ND u /L 08/18/21 1.1 10 47.6 58.0 52.3 78.1 294 76.4 1 ND Y aaFD5 R 1 of 6 December 2021 2013788121.102 TABLES 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 SW-5 SW-6 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 07101,10 - - 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 u91 07/09/13 -- -- 1 ND ND ND ND - - ND ug/L 01/30/14 -- -- 1 ND ND ND ND - - ND u91 07/08/14 -- -- 1 dry ND dry ND - - ND ug/L 0."03'15 0.10 -- 1 ND ND ND ND - - ND u91 08/12/15 0.10 -- 1 dry ND dry ND - - ND ug/L 02/17/16 0.10 -- 1 ND ND ND 1.58 J - - ND ug/L 07/14/16 0.10 -- 1 ND ND ND ND - - ND ug/L 01/11/17 0.10 -- 1 ND ND ND ND - - ND ug/L 07/11/17 0.13 -- 1 dry dry ND ND - - ND ug/L 01/09/18 0.13 -- 1 ND ND ND ND - - ND ug/L 07/26/18 0.16 1.0 -- dry ND dry ND - - ND ug/L 01/30/19 0.16 1.0 -- ND ND ND ND - - ND ug/L 07/10/19 0.16 1.0 -- ND ND dry ND - - ND ug/L 01/30/20 0.16 1.0 -- ND ND ND ND - - ND ug/L 07/07/20 0.16 1.0 -- dry ND dry ND - - ND ug/L 01/19/21 0.16 1.0 -- ND ND ND ND - - ND ug/L 08/18/21 0.16 1.0 ND ND ND ND ND ND ND Cadmium ug/L 10/O8/03 -- -- 1 ND ND ND ND - - ND Freshwater Acute SW Standard (ug/L) ug/L 01/23/04 -- -- 1 ND ND ND ND - - ND SWA =1.23 ug/L 07/08/04 -- -- 1 ND ND ND ND - - ND SW-2=2.01 ug/L 01/25/05 -- -- 1 ND ND ND ND - - ND SW-3=2.48 ug/L 07/06/05 -- -- 1 dry ND dry ND -- -- ND SW-4, SW-5, and SW-6 =2.40 ug/L 01/09/06 -- -- 1 ND ND ND ND - -- ND ug/L 07/12/0 - - 1 ND ND ND ND -- - ND Freshwater Chronic SW Standard (ug/L) ug/L 01/16/07 - - 1 ND ND ND ND -- - ND SW-1 =0.21 ug/L 07/02/07 - - 1 dry ND dry ND -- - ND SW-2=0.32 ug/L 01/29/08 - - 1 ND ND ND ND -- - ND SW-3=0.39 ug/L 07/17/08 - - 1 dry 0.40 J dry ND -- - ND SWA, SW-5,SW-6=0.38 ug/L 02/27/09 - - 1 ND ND ND ND -- -- ND ug/L N16/09 - - 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 01/13/1 1 - - 1 ND ND ND ND -- -- ND ug/L 07/21/1 1 - - 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 0.36 - 1 ND ND ND ND -- -- ND ug/L 08/12/15 0.36 - 1 dry ND dry ND -- -- ND ug/L 02/17/16 0.36 - 1 ND ND ND ND -- -- ND ug/L 07/14/116 0.36 - 1 ND ND ND ND -- -- ND ug/L 01/11/17 0.36 - 1 ND ND ND ND -- -- ND ug/L 07/11/17 0.36 - 1 dry dry ND ND -- -- ND ug/L 01/09/18 0.36 1 ND ND ND ND -- -- ND ug/L 07/26/18 0.36 1.0 -- dry ND dry ND -- -- ND ug/L 01/30/19 0.36 1.0 -- ND ND ND ND - - ND ug/L 07/10/19 0.36 1.0 -- ND ND dry ND - - ND ug/L 01/30/20 0.36 1.0 -- ND ND ND ND - - ND ug/L 07/07/20 0.36 1.0 -- dry ND dry ND - - ND ug/L 01/19/21 0.36 1.0 -- ND ND ND ND ND ug/L 08/18/21 1 0.36 1 1.0 ND ND ND ND ND ND ND Chromium ug/L 10/0%3 -- -- 10 ND ND ND ND - - ND Freshwater Acute SW Standard (ug/L) ug/L 01/23/04 -- -- 10 ND ND ND ND - - ND SW-1 =269 ug/L 07/08/04 - -- 10 ND ND ND ND - - ND SW-2=425 ug/L 01/25/05 -- -- 10 ND ND ND ND - - ND SW-3=518 ug/L 07/06/05 -- -- 10 ND ND - - ND SW-4,SW-5,SW-6=504 ug/L 01/09/06 - - 10 ND ND ND ND -- -- ND ug/L 07/12/06 - - 10 ND ND ND ND -- - ND Freshwater Chronic SW Standard (ug/L) ug/L 01/16/07 - - 10 ND ND ND ND -- - ND SW-1 =34.99 ug/L 07/02/07 - - 10 - ND -- ND -- -- ND SW-2=55.34 ug/L 01/29/08 - - 10 ND ND ND ND -- -- ND SW-3=67.4 ug/L 07/17/08 - - 10 - ND -- ND -- -- ND SWA, SW-5,SW-6=65.5 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 0.3/15 1.4 -- 10 ND 6.99 B ND 4.03 B - - 1.66 J ug/L 08/12/15 1.4 -- 10 dry 58.2 dry 43.7 - - ND ug/L 02/17/16 1.4 -- 10 ND 13.8 ND 343 - -- ND ug/L 07/14/16 1.4 -- 10 ND ND 7.29 J ND - - ND ug/L 01/11/17 1.4 -- 10 ND ND 3.08 J 2.12 J - - ND ug/L 07/11/17 1.4 -- 10 dry dry ND ND - - ND ug/L 01/09/18 1.4 -- 10 ND ND ND ND - - ND ug/L 07/26/18 1.4 10 -- dry 1.49 J dry 1.52 J - - ND ug/L 01/30/19 1.4 10 -- ND ND ND ND - - ND ug/L 07/10/19 1.4 10 -- ND ND dry ND - - ND ug/L 01/30/20 1.4 10 -- ND ND ND ND - - ND ug/L 07/07/20 1.4 10 -- dry ND dry ND - - ND ug/L 01/19/21 1.4 10 -- ND ND ND ND - - ND ug/L 08/18/21 1.4 10 ND ND ND ND 3.44 J 1.43 J ND Y aaFD5 zols December 2021 2013788121.102 TABLES 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 SW-5 SW4i 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 1.1 - 10 ND 2.65 J ND 1.35 J - - ND ug/L 08/12/15 1.1 - 10 dry 20.2 dry 17.8 -- - ND ug/L 02/17/16 1.1 - 10 1.18 J 6.32 J 1.36 J 168 -- -- ND ug/L 07/14/i6 1.1 -- 10 1.34 J ND 2.94 J ND - - ND ug/L 01/11/17 1.1 -- 10 ND ND 1.95 J 1.82 J - - ND ug/L 07/11/17 1.1 -- 10 dry dry ND ND - - ND ug/L 01/09/18 1.1 -- 10 ND ND ND ND - - ND ug/L 07/26/18 1.4 10 -- dry ND dry ND - - ND ug/L 01/30/11 1.4 10 -- ND ND ND ND - - ND ug/L 07/10/19 1.4 10 -- 2.65 J ND dry ND - - ND ug/L 01/30/20 1.4 10 -- ND 1.63 J ND 1.88 J - - ND ug/L 07/07/20 1.4 10 -- dry ND dry ND - - ND ug/L 01/19/21 1.4 10 -- ND 1.68 J 1.92 J ND - - ND u /L 08/18/21 1.4 10 ND ND ND ND 7.33 J 1.49 J ND Copper ug/L 01/16/07 -- -- 10 ND 1.50 J 1.00 J ND - - ND Freshwater Acute SW Standard (ug/L) ug/L 07/02/07 -- -- 10 dry ND dry ND - - ND SW-1 = 5.67 ug/L 01/29/08 -- -- 10 1.00 J 1.20 J ND 1.10 J - - ND SW-2=9.60 ug/L 07/17/08 -- -- 10 dry ND dry 1.90 J - - ND SW-3=12.0 ug/L 02/27/09 -- -- 10 1.90 J ND 1.80 J ND - - ND SW-4, SW-5, SW-6 = 11.7 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 Freshwater Chronic SW Standard (ug/L) ug/L 07/01/10 -- -- 10 dry dry dry ND - - ND SW-1-4.09 ug/L 01/13/11 -- -- 10 ND ND ND ND - - ND SW-2=6.60 ug/L 07/21/11 -- -- 10 dry 1.69 B - 1.62 B - - 1.65 J SW-3=8.11 ug/L 01/16/12 -- -- 10 ND ND 2.89 J ND - - ND SW-4,SW-5,SW-6=7.87 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 1.6 -- 10 3.91 J 10.4 3.79 J 8.05 J - -- ND ug/L 08/12/15 1.6 -- 10 dry 52.4 dry 43.3 - -- ND ug/L 02M7/16 1.6 -- 10 4.03 B 14.4 B 2.76 B 357 - -- 3.66 J ug/L 07/14/16 1.6 -- 10 ND ND 7.98 B 2.96 B - - 3.50 J ug/L 01/11/17 1.6 -- 10 6.07 B 4.16 B 7.82 B 7.32 B - - 6.33 J ug/L 07/11/17 1.6 -- 10 dry dry 2.29 J 1.73 J - - ND ug/L 01101118 1.6 10 ND ND ND ND - - ND ug/L 07/26/18 1.6 10 -- dry 2.50 B dry 1.64 B 2.02 J g/L 01/3111 1. 10 348 J 294 J ND 159 J NDu 72 6 0 112 B 3.28 B dry 296 B 3.52 Ju ug/L 01/30/0 1.6 10 4.14 . J256 J 1.77 J 2.01 J - - ND ug/L 07/07/20 1.6 10 -- dry ND dry ND - - ND ug/L 01/19/21 1.6 10 -- 2.72 J ND ND ND ND ug/L 08/18/21 1 1.6 1 10 2.16 J 4.17 J ND 2.34 J ND 1.97 J ND Lead ug/L 10/08/03 -- -- 10 ND ND ND ND - - ND Freshwater Acute SW Standard (ug/L) ug/L 01/23/04 -- -- 10 ND ND ND ND - - ND SW-1 =23.5 ug/L 07/08/04 -- -- 10 ND ND ND ND - - ND SW-2=43.7 ug/L 01/25/05 -- -- 10 ND ND ND ND - - ND SW_ 3=56.9 ug/L 07/O6/OS -- -- 10 dry ND dry ND - - ND SWA. SW-5,SW-6=54.8 ug/L 01/09/06 -- -- 10 ND ND ND ND - - ND ug/L 07/12/06 - -- 10 ND ND ND ND -- - ND Freshwater Chronic SW Standard (ug/L) ug/L 01/16/07 - -- 10 4.6 J ND 2.6 J 3.6 J -- - ND SW-1 =0.92 ug/L 07/02/07 - -- 10 dry ND dry ND - - ND SW-2=1.70 ug/L 01/29/08 - -- 10 ND ND ND ND -- - ND SW-3=122 ug/L 07/17/08 - -- 10 dry ND dry ND -- - ND SW-4, SW-5,SW-6=2.13 ug/L 02/27/09 - - 10 ND ND ND ND -- - ND ug/L 07/i6/09 - - 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 O'/03/15 2.1 - 10 ND ND ND ND -- -- ND ug/L 08/12/15 3.1 - 10 dry 15.7 dry 14.8 -- - ND ug/L 02/17/16 3.1 - 10 ND ND ND 32.5 J -- - ND ug/L 07/14/18 3.1 - 10 ND ND ND ND -- -- ND ug/L 01/11/17 3.1 - 10 ND ND ND ND -- -- ND ug/L 07/11/17 3.1 - 10 dry dry ND ND -- -- ND ug/L 01/09/18 3.1 - 10 ND ND ND ND -- -- ND ug/L 07/26/18 3.1 10 - dry ND dry ND -- -- ND ug/L 01/301,9 3.1 10 - ND ND ND ND -- -- ND ug/L 07/10/19 3.1 10 - ND ND dry ND -- - ND ug/L 01/30/29 3.1 10 - ND ND ND ND - - ND ug/L 07/07/20 3.1 10 - dry ND dry ND - - ND ug/L 01/19/21 3.1 10 - ND ND ND ND - - ND u /L 08/18/21 3.1 10 ND ND ND ND ND ND ND Y aaFD5 3 of6 December 2021 2013788121.102 TABLES 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 SW4 SW-5 SW4i Nickel ug/L 01/16/07 - - 50 2.9 J ND ND ND -- - ND Freshwater Acute SW Standard (ug/L) ug/L 07/02/07 - - 50 dry ND dry 1.7 J -- - ND SWA =216 ug/L 01/29/08 - - 50 4.8 J ND ND ND -- - ND SW-2=346 ug/L 07/17/08 - - 50 dry ND dry ND -- - ND SW-3=424 ug/L 02/27/09 - - 50 2.4 J ND ND ND - - ND SW-4, SW-5, SW-6 = 412 ug/L 07/16/09 - - 50 dry 3.92 B dry 3.42 B -- - 3.80 J ug/L 01/04/10 - - 50 ND ND ND ND -- - ND Freshwater Chronic SW Standard (ug/L) ug/L 07/01/10 - - 50 dry dry dry ND - - ND SWA =24.0 ug/L 01/13/11 - - 50 ND ND ND ND - - ND SW-2=38.5 ug/L 07/21/11 - - 50 dry ND - ND - - ND SW-3=47.1 ug/L 01/16/12 - - 50 ND ND ND ND - - ND SW-4,SW-5,SW-6=45.8 ug/L 07/09/12 - - 50 dry ND dry ND - - ND ug/L 01/14/13 - - 50 2.29 J ND ND 2.84 J - - ND ug/L 07/09/13 - - 50 1.91 J 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 0."03/15 1.8 -- 50 ND 3.67 J ND ND - - ND ug/L 08/12/15 1.8 -- 50 dry 29.9 J dry 25.3 J - - ND ug/L 02/17/16 1.8 -- 50 ND 8.79 J ND 230 - -- ND ug/L 07/14/16 2.2 -- 50 3.23 B ND 5.87 B 2.24 B - - 11.9 J u91 01/11/17 2.2 -- 50 2.60 J ND 3.47 J 3.28 J - - ND ug/L 07/11/17 2.2 -- 50 dry dry ND ND - - ND ug/L 01/09/18 2.2 -- 50 ND ND ND 2.34 J - - ND ug/L 07/26/18 2.2 10 -- dry 2.25 J dry 2.83 J - - ND ug/L 01/30/19 2.2 10 -- ND ND ND ND - - ND ug/L 07/10/19 2.2 10 -- ND ND dry ND - - ND ug/L 01/30/20 2.2 10 -- 2.26 J ND ND ND - - ND ug/L 07/07/20 2.2 10 -- dry ND dry ND - - ND ug/L 01/19/21 2.2 10 -- ND ND ND ND - - ND ug /L 08/18/21 2.2 10 ND ND ND ND 5.05 J 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/OS -- -- 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 J 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 - 10 ND ND ND ND -- - ND ug/L 08/12/15 5 - 10 dry ND dry ND -- - ND ug/L 02/17/16 5 - 10 ND ND ND ND -- - ND ug/L 07/14/16 6.2 - 10 ND ND ND ND -- - ND ug/L 01/11/17 6.2 - 10 ND ND ND ND -- -- ND ug/L 07/11/17 6.2 - 10 dry dry ND ND -- -- ND ug/L 01/09/18 6.2 10 ND ND ND ND -- -- ND ug/L 07/26/18 6.2 10 - dry ND dry ND -- -- ND ug/L 01/30/19 6.2 10 - ND ND ND ND -- -- ND ug/L 07/10/19 6.2 10 - ND ND dry ND -- -- ND ug/L 01/30/20 6.2 10 - ND ND ND ND -- -- ND ug/L 07/07/20 6.2 10 - dry ND dry ND -- -- ND ug/L 01/19/21 6.2 10 - ND ND ND ND -- ND ug/L 08/18/21 1 6.2 1 10 ND ND ND ND ND ND ND Silver ug/L 10/08/03 - - 10 ND ND ND ND -- -- ND Freshwater Acute SW Standard (ug/L) ug/L 01/23/04 - - 10 ND ND ND ND -- -- ND SW-1 =0.67 ug/L 07/08/04 - - 10 ND ND ND ND -- -- ND SW-2=1.74 ug/L 01/25/05 - - 10 ND ND ND ND -- -- ND SW-3=2.63 ug/L 07/06/05 - - 10 - ND -- ND -- -- ND SW-4, SW-5, SW-6 = 2.48 ug/L 01101/06 - - 10 ND ND ND ND -- -- ND ug/L 07112/0 - - 10 ND ND ND ND -- -- ND Freshwater Chronic Standard=0.06 ug/L 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 1.9 -- 10 ND ND ND ND - - ND ug/L 08/12/15 1.9 -- 10 dry ND dry ND - - 2.59 J ug/L 02/17/16 1.9 -- 10 ND ND ND ND - - ND ug/L 07/14/16 1.9 -- 10 ND ND ND ND - - ND ug/L 01/11/17 1.9 -- 10 ND ND ND ND - - ND ug/L 07/11/17 1.9 -- 10 dry dry ND ND - - ND ug/L 01/09/18 1.9 -- 10 1.92 J 2.26 J 1.96 J ND -- - ND ug/L 07/26/18 1.9 10 -- dry ND dry ND - - ND ug/L 01/30/19 1.9 10 -- ND ND ND ND - - ND ug/L 07/10/19 1.9 10 -- ND ND dry ND - - ND ug/L 01/30/20 1.9 10 -- ND ND ND ND - - ND ug/L 07/07/20 1.9 10 -- dry ND dry ND - - ND ug/L 01/19/21 1.9 10 -- ND ND ND ND -- -- ND ug/L 1 08/18/21 1 1.9 1 10 1 ND ND ND ND ND ND I ND Y aaFD5 4 of6 December 2021 2013788121.102 TABLES 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 SW-5 SW4i 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 0.11 -- 5.5 ND ND ND ND - - ND ug/L 08/12/15 0.11 -- 5.5 dry ND dry ND - - ND ug/L 02/117/16 0.11 -- 5.5 ND ND ND ND - - ND ug/L 07/14/16 0.11 -- 5.5 0.270 J 0.313 J 0.323 J 0.315 J - - ND ug/L 01/11/17 0.11 -- 5.5 ND ND ND ND - - ND ug/L 07/11/17 0.11 -- 5.5 dry dry 0.117 J ND - - ND ug/L 01/09/18 0.05 -- 5.5 ND ND ND ND - - ND ug/L 07/26/18 0.55 5.0 -- dry ND dry ND - - ND ug/L 01/30/19 0.22 2.0 -- ND 0.230 J ND ND - - ND ug/L 07/10/19 0.22 2.0 -- ND ND dry ND - - ND ug/L 01/30/20 0.22 2.0 -- ND ND ND ND - - ND ug/L 07/07/20 0.22 2.0 -- dry ND dry ND - - ND ug/L 01/19/21 0.22 2.0 -- 0.448 J 0.438 J 0.414 J 0.369 J - - ND ug/L 08/18/21 1 0.22 1 2.0 1 ND ND 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 1.4 -- 25 ND 17.3 J ND 8.48 J - - ND ug/L 08/12/15 1.4 -- 25 dry 155 dry 118 - - ND ug/L 02/17/16 1.4 -- 25 ND 35.2 ND 853 - - ND ug/L 07/14/16 1.4 -- 25 ND ND 19.8 J 4.62 J - - ND ug/L 01/11/17 1.4 -- 25 ND ND 7.90 J 6.16 J - - ND ug/L 07/11/17 1.4 -- 25 dry dry ND ND - - ND ug/L 01/09/18 1.4 25 ND ND ND ND -- - ND ug/L 07/26/18 1.4 10 -- dry 5.34 J dry 4.65 J -- - ND ug/L 01/30/19 1.4 10 -- 1.76 J 1.91 J ND 1.60 J -- - ND ug/L 07/10/19 1.4 10 -- 3.82 J 1.47 J dry 1.52 J - - ND ug/L 01/30/20 1.4 10 -- 1.49 J 1.51 J ND 1.91 J - - ND ug/L 07/07/20 1.4 10 -- dry 2.63 J dry 1.75 J - - ND ug/L 01/19/21 1.4 10 -- ND ND ND ND ND ug/L 08/18/21 1 1.4 1 10 2.51 J 2.91 J ND 3.35 J ND 2.91 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 (ug/L) ug/L 07/02/07 -- -- 10 dry ND dry 7.6 J -- -- ND SW-1=53.9 ug/L 01/29/08 -- -- 10 112 10.6 26.9 6.8 B - - 1.6 J SW-2=86.6 ug/L 07/17/08 -- -- 10 dry 3.8 J dry 4.1 J -- - ND SW-3 =106.2 ug/L 02/27/09 -- -- 10 29.8 13.8 7.8 J 13.2 -- - ND SW-4, SW-5, SW-6 = 103.1 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 Freshwater Chronic SW Standard (ug/L) ug/L 07/01/10 - -- 10 dry dry dry 8.81 J -- - ND SW-1 =54.4 ug/L 01/13/11 - -- 10 32.6 ND 7.26 J ND - - ND SW-2=87.3 ug1 07/21/11 - -- 10 dry ND ND -- - ND SW-3 =107.0 ug/L 01/16/12 - -- 10 23.1 11.2 7.09 J ND -- - ND SW-4, SW-5, SW-6 = 104.0 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 3.8 - 10 36.9 20.7 19.5 10.6 -- - ND ug/L 08/12/15 3.8 - 10 dry 536 dry 55.1 -- - ND ug/L 02/17/16 3.8 - 10 16.7 2&1 14.4 306 -- - ND ug/L 07/14/16 4.4 - 10 6.34 J ND 5.57 J ND -- - ND ug/L 01/11/17 4.4 -- 10 40.6 4.95 J 11.8 10.1 -- - ND ug/L 07/11/17 4.4 -- 10 dry dry ND ND -- - ND ug/L 01/09/18 4.4 10 17.8 4.49 J ND ND -- - ND ug/L 07/26/11 4.4 10 - dry 11.9 dry 8.19 J -- -- ND ug/L 01/30/19 4.4 10 - 17.4 6.13 J 10.1 ND -- -- ND ug/L 07/10/19 4.4 10 - 7.32 J ND dry ND -- -- ND ug/L 01/30/20 4.4 10 - 34.8 6.41 J 12.1 4.85 J -- -- ND ug/L 07/07/20 4.4 10 - dry ND dry ND -- -- ND ug/L 01/19/21 4.4 10 - 15.9 4.52 J 6.98 J ND ND u L 08/18/21 1 4.4 1 10 ND 6.94 J 5.28 J 5.03 J ND ND ND 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 ug/L 07/07/20 10 20 - dry ND dry ND -- -- ND ug/L 01/119/21 10 20 - ND ND ND ND -- -- 25 ug/L 1 08/18/21 1 10 1 20 1 ND ND I ND ND ND ND ND Y aaFD5 5 of6 December 2021 2013788121.102 TABLES 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 SW4 SW-5 SW-6 2-Bulanone 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 OS/ 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 5.0 - dry ND dry ND -- -- ND ug/L 01/30/19 1.3 5.0 - ND ND ND ND -- -- ND ug/L 07/10/19 1.3 5.0 - ND ND dry ND -- -- ND ug/L 01/30/20 1.3 5.0 - ND ND ND ND -- -- ND ug/L 07/07/20 1.3 5.0 - dry ND dry ND -- -- ND ug/L 01/19/21 1.3 5.0 - ND ND ND ND -- -- ND u /L 08/18/21 1.3 5.0 ND ND ND ND ND ND ND 1,4-Dioxane (Human Health Std. = 0.35 ug/L) ug/L 07/26/18 1.2 2.0 - dry 5.4 dry 5.2 -- - ND ug/L 01/30/19 1.2 2.0 - ND 4.5 2.1 3.4 - - ND ug/L 07/10/19 1.2 2.0 - ND 8.0 dry 4.3 -- - ND ug/L 01/30/20 1.2 2.0 - ND 3.1 1.6 J 4.1 -- - ND ug/L 07/07/20 0.8 2.0 - dry 6.6 dry 4.0 -- - ND ug/L 01/19/21 0.8 2.0 - 0.83 J 4.9 3.0 4.6 -- - ND ug/L 08/18/21 0.8 2.0 1.9 J 5.0 5.1 5.8 19 6.6 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 1119/06 provided by Joyce Engineering, Inc. 15. The following dilutions were noted for the August 2021 event: Antimony/Thallium 2x all locations. 16. Hardness values were taken most recently during the January 2021 sampling event and are reported in mg/L SWA = 40, SW-2 = 70, SW-3 = 89, SW-4 = 86. 17. Hardness values for SW-4 were used to determine hardness dependent surface water standards for SW-5 and SW-6. J aaFD5 6 of6 December 2021 2013788121.102 TABLE 9 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 Downstream Parameter Units Date SW-1 SW-3 SW-2 SW-4 SW-5 SW-6 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. 01/29/20 6.95 7.57 7.79 7.81 S.U. 07/07/20 dry 7.04 dry 7.80 S.U. 01/19/21 7.94 6.76 6.39 7.92 -- -- S.U. 08/18/21 7.17 7.79 7.69 8.22 7.46 7.57 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 US/cm 07/07/20 dry 285 dry 227 US/cm 01/19/21 145 235 241 245 -- -- US/cm 08/18/21 189 193 269 256 879 278 GOLDER SP MEMBER OF WSP 1 of 3 December 2021 2013788121.102 TABLE 9 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 Downstream Parameter Units Date SW-1 SW-3 SW-2 SW-4 SW-5 SW-6 Temperature (Field) C 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 "C 07/08/14 dry 22.4 dry 24.0 "C 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 °C 07/07/20 dry 21.0 dry 24.2 °C 01/19/21 6.8 4.5 4.9 6.3 -- -- °C 08/18/21 25.2 23.0 23.4 22.2 19.7 22.3 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 NTU 07/07/20 dry 5.94 dry 6.80 NTU 01/19/21 16.5 11.5 10.8 14.1 -- -- NTU 08/18/21 7.17 87.6 11.5 127 149 114 GOLDER SP MEMBER OF WSP 2 of 3 December 2021 2013788121.102 TABLE 9 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 Downstream Parameter Units Date SW-1 SW-3 SW-2 SW-4 SW-5 SW-6 Oxidation Reduction my 01/29/08 165 202 214 182 Potential (Field) my 07/17/08 dry 75 dry 76 mv 01/14/09 92.8 113.6 139.6 156.6 mv 07/16/09 dry 126.1 dry 45.5 mv 01/04/10 82.5 122.6 176.4 5.8 mv 07/01/10 dry dry dry 140.9 mv 01/13/11 141.9 191.8 224.4 145.8 mv 07/21/11 dry 45.8 -- 55.8 mv 01/16/12 31.9 137.1 218.6 64.6 mv 07/09/12 dry -7.3 dry -4.3 mv 01/14/13 -- -- -- -- mv 07/09/13 67.0 33.4 21.1 71.7 mv 01/30/14 18.1 31.7 96.4 -3.0 mv 07/08/14 dry 43.0 dry 280.2 mv 03/03/15 -0.8 131.9 143.9 73.2 mv 08/12/15 dry 32.0 dry 47.6 mv 02/17/16 140.1 184.6 240.4 288.2 mv 07/14/16 -12.1 70.1 92.7 81.1 mv 01/11/17 201.6 226.5 250.6 216.9 mv 07/11/17 dry 103.0 dry 140.1 mv 01/09/18 234.1 mv 07/27/18 dry 9.0 dry 126.3 mv 01/30/19 -14.3 54.9 51.7 32.1 mv 07/10/19 72.2 122.6 dry 97.5 mv 01/29/20 191.7 210.3 203.4 -95.5 mv 07/07/20 dry 105.4 dry 62.7 mv 01/19/21 -91.8 38.5 63.6 31.4 -- mv 08/18/21 10.9 101.7 96.4 90.2 54.6 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 mg/L 07/07/20 dry 6.71 dry 5.82 mg/L 01/19/21 9.72 12.45 11.92 13.47 -- mg/L 08/18/21 5.13 5.81 5.46 6.39 6.18 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 SP MEMBER OF WSP 3 of 3 Drawing MOORE, J 01 �10 \ o /1 i 9 0FAC\ / ' /✓� �� BOUINDARY LITY PROPERTY 7B \� 3 0 �o �— LFG-1 LFG-2k �:\ M W-5 0 - 736.23 «--- �`` M W-7S 08L �: 735.37• MW-7D � �— \ ��'�T vim' 11111 /— � 1 \ . SW-5 C SB-3 L s\. soA ` J SW-6 i 79 OW ER LINES -4 OY \ 1 NG VERHEAD P El -770 Or � \ I ` 0 I oL_ Ars :♦ o v rrs: rrjSME 0 [ CLIENT WI HIGH POINT LANDFILL, LLC I CONSULTANT GO MEMB i GOLDER ASSO J LEGEND EXISTING 10' CONTOURS — EXISTING 2' CONTOURS — — PROPERTY LINE STREAM ...TREELINE EXISTING ROAD — — — — PROPOSED OR EXISTING LIMITS OF WASTE MW-3 MONITORING WELL LOCATION IDENTIFICATION AND 736.53 GROUNDWATER ELEVATION ❑ SW-1 SURFACE WATER MONITORING POINT P-3 PROPOSED MONITORING WELL LOCATION 782.44 ® BM-1 BENCH MARK IS LFG-1 LANDFILL GAS MONITORING WELL LOCATIONS 0 GAS VENT SB-1 SEDIMENT BASIN — 760 GROUNDWATER SURFACE CONTOURS GROUNDWATER FLOW SEGMENT USED TO CALCULATE GRADIENT O PWS-6 PORE WATER SAMPLING LOCATION NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET 3. GROUNDWATER ELEVATIONS MEASURED ON AUGUST 16, 2021. 4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND L EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL CONDITIONS. 5. GROUNDWATER CONTOURS LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE LL CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. F 6. THE GROUNDWATER ELEVATIONS FOR MW-4D AND MW-7D WERE NOT USED IN THE CONSTRUCTION OF GROUNDWATER CONTOURS. 7. DRAWING BASED ON SITE PLAN PLAN PREPARED BY JOYCE ENGINEERING, INC DATED JULY 7, 2004. 8. UPDATED TOPOGRAPHY IN VICINITY OF LANDFILL PROVIDED FROM AERIAL SURVEY PREPARED BY COOPER AERIAL SURVEY COMPANY, DATE JANUARY 6, 2021. 9. HIGH POINT, NORTH CAROLINA 7.5-MINUTE QUADRANGLE MAP OBTAINED FROM US GEOLOGIC SURVEY, DATE AUGUST 7, 2019. YYYY-MM-DD 2021-10-21 PREPARED SIB L D E R DESIGN TJM ER OF WSP REVIEW DYR CIATES NC, INC. APPROVED RPK PROJECT CONSTRUCTION AND DEMOLITION DEBRIS LANDFILL AND L RECLAMATION FACILITY GUILFORD COUNTY, NORTH CAROLINA TITLE = GROUNDWATER CONTOUR MAP AUGUST 16, 2021 PROJECT No. Rev. FIGURE 2013788121 0 c 0 APPENDIX A Groundwater and Surface Water Sampling Logs GILDER MEMBER OF WSP Project Name: Well ID: _ Well Diameter. Depth to Bottom: Pumping Rate: HiQh Point C&D LF MW-1 2 inches 29.15 feet 100 mUmin DATE & - /d -- I GROUNDWATER SAMPLING LOG Project No./Phase No.: _ 2013788121 5ampler(s): T. Martinez Initial Depth to Water:, 7 feet Water Column Thickness:_ 1 -37 feet System Volume: 962 Equipment., YSI, Turbidity Meier, Water Level Meter, Dedicated Bladder Perm , MP-15 - • • • • • * - NOW= 1 � ■����.� Comments (weather conditions, color, type of sample, purge -water management, etc.): Benin Purge at 0?.�? Signature: QA/QC Sign Off: Date: go 16 - Z, I Date: If . gr - z-/ i GOLDER Project Name: Well ID- Well Diameter: inches Depth to Bottom: Pumping Rate: Equipment: i 5 feet I ? S mLlmin. DATE: GROUNDWATER SAMPLING LOG Project Na/Phase No.: Sampler(s): 1- /4^viez Initial Depth to Water: 7, 19 feet Water Column Thickness: ',:, I, feet System Volume: `tC)W mL YSI, Hach 21000, W L Meter, MP-15, Dedicated Bladder Pump ® . • •-- Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin purge at -- Signature: „'.�- '�. Date: QA/QC Sign Off: r% • xJ Date; I GILDER MEMBER 4F WSP Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: High Point C&D LF MW-3 2 inches 30.60 feet 140 mUmin. DATE: '30 _� 7 " 2 1 GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(s): T. Martinez Initial Depth to Water: j feet Water Column Thickness: (1.64 feet System Volume: 1011 Equipment: YSI, Turbidity Meier, Water Level Meter, Dedicated Bladder Pump, MP-'15 Time pH S.U.) Sp. Cond, (US/cm) Turb (NTU) Dis 02 (mg/L) Temp. (°C) ORP (millivolts) DTW (feet) \%048 4. 7 y. -5 I-i, 1 ti . . 3 113 Zil,4i 7_ &-I sip R.V `i -Zo1. 5 3.:35 1.41 15-4.3of i 6,53 i , CJ"1 3, 14 , Z �Y VyO 1 *�6 A I; 1615.5 -L .0`7 1. 53 1-7.6 -L 70, 2S, 033 {a . 5 IL .1 3.5 $ j 1. '7 'L I c1 . l D y 1 y7 A+ Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Purge at m)-x .. t1C$ �Wq QL- 601 -ttlA K Signature: /L QAIQC Sign Off:0111 j Date: Date: T • `L / OLDER MEMBER of WSP Project Name: High Point C&D LF Well ID: MW-4S Well Diameter. Depth to Bottom: Pumping Rate: 2 inches 22.20 feet 175-4115 mUmin. DATE: '00 -11 ­, GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(s): T. Martinez Initial Depth to Water: 7 , feet Water Column Thickness: I feet System Volume: 964 Equipment: YSI, Turbidity Meter, Water Level Meter, Dedicated Bladder Pump, MP-15 ® u Cond. ® ` '-is • + MET"_ � Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Purge at Signature: Date: l I QA/QC Sign Off: Date: J[--/ GILDER MEMBER OF WSP Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: High Point C&D L,F MW-5 2 inches 27.14 feet V ZO 'tO TT^ mUrnin. DATE: e x 16 - 7-I GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(s): T. Martinez Initial Depth to Water: T, 40 feet Water Column Thickness: -L5. -5y feet System Volume: 905 Equipment; Y51, Turbidity Meter, Water Level Meter, Dedicated Bladder Pump, MP-15 ®Sp. Cond. ® , '+ • Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Purge at i Signature: QAIQC Sign Off: Date: �? -1Q ' Z 1 Date: t& g, 2�,/ 4 kGOLDER MEM9F-R OF W5P Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: High Point C&D LF MW-6 2 inches 18.00 feet 100 mLJmin. DATE: ' _ �� l GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(s): T, Martinez Initial Depth to Water: feet Water Column Thickness: feet System Volume: 817 Equipment: YSI, Turbidity Meter, Water Levu Meter, Dedicated Bladder Pump, MP-15 ♦ • •Dis 02 ' t �■��M—, Comments (weather co ditions, color, type of sample, purge -water management, etc.): Begin Purge at j ;459 Signature: QA/QC Sign Off: Date: 4 __ ! g ." L Date: GOLDSR MEnneER OF weP Project Name: Well ID: Well Diameter: Depth to Bottom: Pumping Rate: High Point C&D LF MW-7S 2 inches 47.70 150 feet mltlmin. DATE: - - I II GROUNDWATER SAMPLING LOG Project No.lPhase No.: 2013788121 Samplerts): T. Martinez Initial Depth to Water: 'Z5. 93 feet Water Column Thickness: zI. feet System Volume: 1104 Equipment: YSI, Turbidity Meter, Water Level Meter, Dedicated Bladder Pump, MP-15 Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin Purge at 0 Ci, y r —1 Signature: /� Date: QAIQC Sign Off: ��, Date:Lrl GDLDER MEMBER OF W$P Project Name: High Point C&D LF Well ID: MW-8 Well Diameter: Depth to Bottom: Pumping Rate: 2 inches 28.10 feet 125 mLlmin. DATE: %: 1 GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Samplers): T. Martinez Initial Depth to Water: Q. 5 5 feet Water Column Thickness: feet System Volume: 915 Equipment: YSI, Turbidity Meter, Water Level Meter, Dedicated Bladder Pump, MP-15 Comments {weather conditions, color, type of sample, purge -water management, etc.), Begin Purge at 111,1'� Signature: Date: 2-1) - 2-1 QA1QC Sign Off: may. Date: /J. -/ GOLDFP 44-VL'y"f Of - Project Name: Kn. f6,' 6 P Lf Well ID:Well Diameter: 2 inches Depth to Bottom: 5 Or) feet Pumping Rate: I c7 14 U mUmin. DATE: ? __l -7 Ii GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013 7&J2_' Sampler(s): T-M4 Z _ Initial Depth to Water: 5'i feet Water Column Thickness: O I feet System Volume: A `1 S mL ® • Cond. Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin purge at 0�, -7 Signature: 6-► QXQC Sign Off: Date: _ - 1 Date: H - ?, Z-/ GOLDEP MEMBER OF WSP DATE: — sek3 `' .2- a -L ( GROUNDWATER SAMPLING LOG Project Name: High Point U • i4s,,t f Project No./Phase No.: 26J1R161d1Zt Well ID; Sampler(s): VlUcAas e Well Diameter: 2 inches Initial Depth to Water: .q(S feet Depth to Bottom: Zq 45 feet Water Column Thickness: lk L5 feet Pumping Rate: 1 r� mL/min. System Volume: q U Equipment: Turbidimeter, YSi ProPhis, WL Meter Dedicated BP, MP-15 Comments (weather conditions, color, type of sample, purge -water management, etc.): 1�g_c cln 00'� Signature: Date: `4 36k Z'J G,, QA/QC Sign Off: Date: 1 b ,?• Z COLDER MEMBER OF WSP DATE: Q I ld 2 u-2 ( GROUNDWATER SAMPLING LOG Project Name: High h Paint LF- k Project No./Phase No.: 201 Yt'bb`� l Well ID: ��� -3 Sampler(s): _ ��iLc7iQ5 Tr��dcx - 7bYr¢5 Well Diameter: 2 inches Initial Depth to Water: ,I 14 feet Depth to Bottom: _30. ,(] feet Water Column Thickness: 11 feet Pumping Rate: 12.0 mUmin. System Volume: ',Dj 1 Equipment: Turbidimeter, YSI Pro%5, WL Meter Dedicated BR MP-15 Time pH (S.U.) Sp. Cond. (US/cm) Turb (NTU) Dis Oz (m /L) Temp. (°C) ORP (millivolts) DTW (feet) 5 ICjea,o I . 5 zz 1B (D i_ 2. ` ! I O k k 5-` !_4 l � l b 13�. I lbl S. I<t,G IDLI 5. ` l3.2 I 2 t.? 11.2n,Zq (b!o S i 9 3.' i k G -! ? a 11 24) n S ! 11. 3 !. R4_ 4.2 (4 -i G '2 z C& 5, u 1.63 Z4, 1q'q 214.4 (01, 3 1 CL2 4 . c> 2 ( . 'L t Lo �T Comments (weather conditions, color, type of sample, purge -water management, etc.): Signature: - k, QA/QC Sign Off: Date: `d � 10 �2_6 Date: // -4f. �,, ) G0LDER MEMBER OF WSP Project Name: High Paint!,V_� Well ID: MW ---S Well Diameter: 2 inches Depth to Bottom: feet Pumping Rate: 1 ' mUmin. DATE: ` +: �l2- 12c GROUNDWATER SAMPLING LOG Project No./Phase No.: 2_0t t3 SELL Sampler(s): uk c_ "" Initial Depth to Water: L feet Water Column Thickness: feet System Volume: 40D Equipment: Turbidimeter, YSl ProPlus, WL Meter Dedicated BP. MP-15 ®ERMA= ® ` • # ` Comments (weather conditions, color, type of sample, purge -water management, etc.): purGy 0 15zj� 110 - Signature: Date: C6 �36 2 o &I QA/QC Sign Off: Date: GOLDER k4> MEMBER OF WSP Project Name: High Point LF,ft(AWOL Well ID: 11'►1,,,7 --7, Well Diameter: 2 inches Depth to Bottom: i _ u feet Pumping Rate: lire mUmin. DATE: `l( 20 L ( GROUNDWATER SAMPLING LOG Project No./Phase No.: 20N " 1 L( Sampler(s): Initial Depth to Water: 4.5- feet Water Column Thickness: '4 • -5 feet System Volume: { -3 Equipment: Turbidimeter, YSi ProPlus, WL Meter Dedicated BP. MP- 15 Sp. Cand. (US/am) MON. MM MOM --�--�- �.i lF'50 Comments (weather conditions, color, type of sample, purge -water management, etc.): [� t7bU3 Signature: QAtQC Sign Off: Date: OZA Date: // - ?. 2, GOLDEP Project Name: K Well ID: - 3 Well Diameter: "? inches Depth to Bottom: 7 , feet Pumping Rate: i �] mUmin. DATE: �?-17-21 GROUNDWATER SAMPLING LOG _20r3 7e� l Z i Sampler(s): ti . M qv+. Yr rt Initial Depth to Water: -7. • 3 feet Water Column Thickness: 0 . 0 C, feet System Volume: 3 mL Project No./Phase No.: Equipment: T 1Z,,r1,'AJJ ftt-, 1�,r �,`'ta 4t r WI_ Mej� f, Time pH (S.U.) Sp. Cond. (US/cm) Turb (NTU) Dis 02 (mg/L) Temp. (°C) ORP (millivolts) DTW (feet r7 )A ,S 1`1^ 99 1`1.7 )04 11 3. 0.3,-) )1_1 -2 13 5 i 1A-1 5 i g TP 4r Vie Comments (weather conditions, color, type of sample, purge -water management, etc.): Begin purge at oI_� - JU 3 > 6 ke,,11 F 8 f Mk , re,_ ,, e (0 ) q V 3 Signature: QAIQC Sign Off Date: �? _/ -? - 2-1 Date: I/- d� Z./ GOLFER MEMBER 4F WSP DATE: e-4-1( SURFACE WATER SAMPLING LOG Project Name: High Point C&D LF Project No./Phase No.: Sample ID: SW-9 Sampler(s); Sampling Location: Equipment: Time `11Cl pH S.U. -7, -7 Sp. Coed.. us/cm I Turb. ntu Dis. 02 mg/L � Temp. 'C• GRP my 10.9 YSI, Turbidimeter 2013788121 T. Martinez Surface Water Sampling Location Sketch it F -� �1` j w - � SPA �`'-r•� � ,f Comments (sample methodology, weather conditions, color, silt, etc.): Signature: Date: QA1QC Sign Off: Date: It- 'a. 2,1 COLDER MEMBER Or W5P DATE: �'fl SURFACE WATER SAMPLING LOG Project Name: High Point C&a LF Project No./Phase No.: Sample ID: SW-2 Sampler(s): Sampling Location: Equipment: YSI, Turbidimeter Time pH S.U. Sp. Cond. u51cm b Turb. ntu �+' Dis.O2 mg/L 7 7c Temp. a ORP mv r, f 2013788121 T. Martinez Surface Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): Signature: Date: �> -r Id .-2-1 QAIQC Sign Off: % Date: //r� GOLD$R MEMBER OF WSP DATE: oO -- I 2 1 SURFACE WATER SAMPLING LOG Project Name: High Point C&D LF Project No./Phase No.: Sample ID: SW-3 Sampler(s): Sampling location: Equipment: YSI, Turbidimeter Time pH s.u. T Sp. Cond. us/cm 1 1 p 2.I Turb. ntu mg/L Temp.,36 oC _ ORP my { I N T 2013788121 T. Martinez Surface Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): Signature: Date: QA/QC Sign Off: []ate: a -/ GDLDER MEM@ER 4F WSP DATE:'- II SURFACE WATER SAMPLING LOG Project Name: High Point C&D LF Project No./Phase No. Sample ID: SW-4 Sampler(s): Sampling Location: Equipment: YSI, Turbidimeter Time Oq O p H sm .Z Sp. Cond. us/cm 256,` Turb.� ntu Dis. 02 mg/L Temp. QC ORPa my 2013788121 T. Martinez Surface Water Sampling Location Sketch �Owel' i ,ne 'w M� M GI Comments (sample methodology, weather conditions, color, silt, etc.): Signature: QAIQC Sign Off: Date: r19 l ? Date: !+* •, �r sw -H GCfLDER MIEM@ER 4F WSP DATE: � -' 9 r 11 SURFACE WATER SAMPLING LOG Project Name: High Point C&D LF Project No.lPhase No.: Sample ID: _ 5tiv.45 Sampler(S): Sampling Location: Equipment: Time Q�E pR S.U. _I �4'I Sp. Cond. US/cm Turb. ntu 1 Dis.02 mg/L Temp. 0C ORP my YSI, Turbidimeter T 2013788121 T. Martinez Surface Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): Signature: QA/Q,C Sign Off: Date: 'lei ~ 1. Date: / r - 4?-Z-r 4 GOLDER MFIMBEFt OF WSP DATE: — / 9 - 2, 1 SURFACE WATER SAMPLING LOG Project Name: High Point C&D LF Project No./Phase No.. Sample ID: Sampler(s): Sampling Location: Equipment: YSI, Turbidimeter Time 09- 4 pH S.U. 5 Sp. Cond. US/cm Turb. ntu Dis.O2 mg/L r i q Temp. Gc , ORP�`� mV f q 2013788121 T. Martinez Surface Water Sampling Location Sketch 0 u <„T LF) t, -S 5�V-� Comments (sample methodology, weather conditions, color, slit, etc.): Signature: Date: QA1QC Sign Off: Date: za GOLDER MEMBER OF WSP DATE: 811812021 PORE WATER SAMPLING LOG Project Name: High Point LF Project No./Phase No.: 2013788121 Sample ID: PWS-4 Sampler(s): Travis Martinez & Dusty Reedy Sampling Location: Equipment: YSI, Turbidimeter Time 10,17 pH 6.68 S.U. Sp. Cond. us/cm 362.0 Turb. ntu 116 Dis. OZ 0.99 mg/L Temp. °C 22 8 ORP -31.6 my 1 Pore Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): Signature: / Date: QA/QC Sign Off: Date: // • a Z / GOLDER MEMBER OF WSP DATE: 811812021 PORE WATER SAMPLING LOG Project Name: High Point LF Project No./Phase No.: 2013788121 Sample ID: PWS-5 Sampler(s): Travis Martinez & Dusty Reedy Sampling Location: Equipment: YSI, Turbidimeter Time 9.31 pH 6.98 S.U. Sp. Cond. US/cm 267.6 Turb. 724 ntu Dis.O2 3.48 mg/L Temp. °C 23.6 ORP 3.40 my 7 /" /I Pore Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): Signature: QA/QC Sign Off: 7 Date: dy ?- Z/ Date: 1/-d Z/ GOLDER MEMBER OF WSP DATE: 811812021 PORE WATER SAMPLING LOG Project Name: High Point LF Project No./Phase No.: 2013788121 Sample ID: PWS-6 Sampler(s): Travis Martinez & Dusty Reedy Sampling Location: Equipment: YSI, Turbidimeter Time 9:02 pH 6.25 S.U. Sp. Cond. US/cm 931 Turb. ntu 291 Dis. 02 1.07 mg/L Temp. °C 22.6 ORP -49.6 my Pore Water Sampling Location Sketch 7- Comments (sample methodology, weather conditions, color, silt, etc.): Signature: /�� Date: QA/QC Sign Off: Date: ��• �. Zr APPENDIX B August 2021 Groundwater and Surface Water Certificate -of - Analysis, Chain -of -Custodies, and Lab Data Review ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Wednesday, August 25, 2021 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 2013788121.600, Project Name/Desc: GFL Env - High Point LF ENCO Workorder(s): CE09534 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, August 20, 2021. 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, Amanda L. Gaines 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 4 PROJECT NARRATIVE Date: August 25, 2021 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF Lab ID: CE09534 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 8260D LCS exhibited a high bias for 2-Butanone, Acetone, and trans-1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1-Trichloroethane, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, Acetone, Bromodichloromethane, Bromomethane, and trans-1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The spike recovery for 1, 1 -Dichloroethene was outside control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for 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. Amanda Gaines 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 14 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-PWS-4 Lab ID: CE09534-01 Sampled: 08/18/21 10:17 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 50308_MS 09/01/21 08/23/21 19:04 08/24/21 08:55 Client ID: 4116-PWS-5 Lab ID: CE09534-02 Sampled: 08/18/21 09:31 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 50308_MS 09/01/21 08/23/21 19:04 08/24/21 09:22 Client ID: 4116-PWS-6 Lab ID: CE09534-03 Sampled: 08/18/21 09:02 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 50308_MS 09/01/21 08/23/21 19:04 08/24/21 09:50 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 14 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY No positive results detected. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 of 14 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-PWS-4 Lab Sample ID:CE09534-01 Received: 08/20/21 14:20 Matrix: Ground Water Sampled:08/18/21 10:17 Work Order: CE09534 Project: GFL Env - High Point LF Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 08:55 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 08:55 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 08:55 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 08:55 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 08:55 RKY Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 08:55 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 08:55 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 08:55 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 08:55 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 of 14 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-PWS-4 Lab Sample ID:CE09534-01 Received: 08/20/21 14:20 Matrix: Ground Water Sampled:08/18/21 10:17 Work Order: CE09534 Project: GFL Env - High Point LF Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 08:55 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 08:55 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 66 1 60.0 109 % 53-136 IH23035 EPA 8260D 08124121 08:55 RKY Dlbromofluoromethane 71 1 60.0 119 % 67-129 1H23035 EPA 8260D 08124121 08:55 RKY Toluene-d8 61 1 60.0 102 % 59-134 1H23035 EPA 8260D 08124121 08:55 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 14 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-PWS-5 Lab Sample ID:CE09534-02 Received: 08/20/21 14:20 Matrix: Ground Water Sampled: 08/18/2109:31 Work Order: CE09534 Project: GFL Env - High Point LF Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 09:22 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 09:22 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 09:22 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 09:22 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 09:22 RKY Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 09:22 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 09:22 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 09:22 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 09:22 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 of 14 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-PWS-5 Lab Sample ID:CE09534-02 Received: 08/20/21 14:20 Matrix: Ground Water Sampled: 08/18/2109:31 Work Order: CE09534 Project: GFL Env - High Point LF Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 09:22 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 09:22 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 63 1 60.0 105 % 53-136 IH23035 EPA 8260D 08124121 09:22 RKY Dlbromofluoromethane 69 1 60.0 116 % 67-129 1H23035 EPA 8260D 08124121 09:22 RKY Toluene-d8 61 1 60.0 102 % 59-134 1H23035 EPA 8260D 08124121 09:22 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 14 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-PWS-6 Lab Sample ID:CE09534-03 Received: 08/20/21 14:20 Matrix: Ground Water Sampled: 08/18/2109:02 Work Order: CE09534 Project: GFL Env - High Point LF Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 09:50 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 09:50 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 09:50 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 09:50 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 09:50 RKY Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 09:50 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 09:50 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 09:50 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 09:50 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 14 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-PWS-6 Lab Sample ID:CE09534-03 Received: 08/20/21 14:20 Matrix: Ground Water Sampled: 08/18/2109:02 Work Order: CE09534 Project: GFL Env - High Point LF Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 09:50 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 09:50 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 67 1 60.0 111 % 53-136 IH23035 EPA 8260D 08124121 09:50 RKY Dlbromofluoromethane 71 1 60.0 118 % 67-129 1H23035 EPA 8260D 08124121 09:50 RKY Toluene-d8 60 1 60.0 100 % 59-134 1H23035 EPA 8260D 08124121 09:50 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of 14 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23035 - EPA 5030E MS Blank (1111-123035-BLKI) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 06:38 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 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 Level Result %REC Limits RPD RPD Limit Notes 4-Bromofluorobenzene 63 u9/L 60.0 105 53-136 Dibromofluoromethane 68 u9/L 60.0 113 67-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 11 of 14 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23035 - EPA 50305 MS - Continued Blank (SH23035-BLK3) Continued Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 06:38 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 60 u91L 60.0 99 59-134 LCS (1H23035-BS1) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 04:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 25 1.0 ug/L 20.0 125 75-133 Benzene 20 1.0 ug/L 20.0 99 80-134 Chlorobenzene 19 1.0 ug/L 20.0 95 80-120 Toluene 19 1.0 ug/L 20.0 95 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 Matrix Spike (1H23035-MS1) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 05:16 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 28 1.0 ug/L 20.0 0.21 U 138 75-133 QM-07 Benzene 24 1.0 ug/L 20.0 3.6 100 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 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 103 74-120 Matrix Spike Dup (1H23035-MSD1) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 05:43 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 27 1.0 ug/L 20.0 0.21 U 135 75-133 2 20 QM-07 Benzene 24 1.0 ug/L 20.0 3.6 104 80-134 3 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 4 16 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 5 17 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 0.7 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 4 (� �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. QL-02 The associated laboratory control sample exhibited high bias; since the result is ND, there is no impact. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. 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 13 of 14 E ca c W U ccM m Q N 0 0 O a 3 ir, g fl}�'Nv U z I LL0 o ii rn O IKA -o Q (Sf m •� EU �, p , ramf� c CD E E Y Y p + 0 o (n LU � Qi 5 C_) E cco n Z^ U C w T m � c d ° U m y r � U a g m. `o i 4 c a U 0 4 XlpuaddV aoozg x x x Y ov �Q U y CL CM N e n 1 O E _ m �yy o U CO Z r E J z LL p p - CL fL It U o Zww m Im m < E T T T m V It It N m H U GI U ti (n U m .- ricz cz n C71 U � 0 o a m a � Q � U U O a U �V U^ G r� o a o a cc O a � m 4 � c Z cr m c S 8a U E N Q c G m E a S rn m C a s m Y E E Page 14 of 1 fn IU 109 i:l WORK ORDER Printed: 8/23/2021 8:47:52AM CE09534 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Amanda L. Gaines Project: GFL Env - High Point LF Project Number: 2013788121.600 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: Rachel Ann Yonish Date Received: 20-Aug-21 14:20 Logged In By: Rachel Ann Yonish Date Logged In: 20-Aug-21 15:46 Work Order Comments: C-30 received at 1.7°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 Monday, October 4, 2021 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 2013788121.102, Project Name/Desc: GFL Env - High Point LF, LLC ENCO Workorder(s): CE09536 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Wednesday, August 18, 2021. 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, Amanda L. Gaines 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 8 PROJECT NARRATIVE Date: October 4, 2021 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Lab ID: CE09536 Overview (� �Eo www.encolabs.com This report is an amendment to the original report dated August 31, 2021 for this work order. This report was revised to remove an erroneously reported value in the QC Blank. 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 8260D LCS exhibited a high bias for Acetone and Bromoform; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1-Trichloroethane, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, Acetone, Bromodichloromethane, Bromomethane; however, these analytes were not detected in the associated samples. The spike recovery for 1,4-dioxane was outside control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. The LCS exhibited a high bias for Mercury; however, this element was not detected in the associated samples. The spike recoveries for Iron and Manganese were outside control limits for the MS, MSD, and/or Post Digestion spike samples. The QC batches were approved based on acceptable LCS recovery of these elements. The spike recoveries for Alkalinity, Chloride, and Sulfate were outside control limits for the MS and/or MSD samples, the precision between duplicate spikes of Sulfate exceeded acceptance criteria. The QC batches were approved based on acceptable LCS recovery of these analytes. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for 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. Amanda Gaines 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 18 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-AMW3 Lab ID: CE09536-01 Sampled: 08/17/21 10:35 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/14/21 08/24/21 10:27 08/24/21 19:51 EPA 310.2 NO PREP 08/31/21 08/24/21 10:04 08/24/21 13:21 EPA 6010D EPA 3005A 02/13/22 08/20/21 16:08 08/24/21 12:59 EPA 6020B EPA 3005A 02/13/22 08/21/21 08:37 08/24/21 16:17 EPA 7470A EPA 245.1 09/14/21 08/23/21 14:19 08/30/21 07:47 EPA 8260D EPA 5030B_MS 08/31/21 08/20/21 00:00 08/20/21 14:27 EPA 8260D EPA 5030B_MIS 08/31/21 08/23/21 14:00 08/23/21 21:03 SM 254OC-2011 NO PREP 08/24/21 08/23/21 17:42 08/23/21 17:42 Client ID: 4116-P-3 Lab ID: CE09536-02 Sampled: 08/17/21 15:03 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/22 08/20/21 16:08 08/24/21 13:02 EPA 6020E EPA 3005A 02/13/22 08/21/21 08:37 08/24/21 16:21 EPA 7470A EPA 245.1 09/14/21 08/23/21 14:19 08/30/21 07:49 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 18 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-AMW3 Lab ID: CE09536-01 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 37 0.80 2.0 ug/L EPA 8260D Barium - Total 367 1.10 10.0 ug/L EPA 6010D Benzene 0.53 J 0.15 1.0 ug/L EPA 8260D Chloride 100000 D 11000 25000 ug/L EPA 300.0 Chromium - Total 5.25 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 12.8 1.40 10.0 ug/L EPA 6010D Iron - Total 11700 22.0 50.0 ug/L EPA 6010D Manganese - Total 8290 1.50 10.0 ug/L EPA 6010D Nickel - Total 3.31 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 40000 D 14000 25000 ug/L EPA 300.0 Total Alkalinity as CaCO3 450000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 350000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-P-3 Lab ID: CE09536-02 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 48.2 1.10 10.0 ug/L EPA 6010D Iron - Total 78.5 22.0 50.0 ug/L EPA 6010D Manganese - Total 91.4 1.50 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 4 Of 18 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CE09536-01 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 10:35 Work Order: CE09536 Project: GFL Env - High Point LF, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY QV-01 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY QV-01 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23032 EPA 8260D 08/23/21 21:03 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 IH23032 EPA 8260D 08/23/21 21:03 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23032 EPA 8260D 08/23/21 21:03 RKY QL-02, QV-01 Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 11-123032 EPA 8260D 08/23/21 21:03 RKY Benzene [71-43-2]^ 0.53 J ug/L 1 0.15 1.0 1H23032 EPA 8260D 08/23/21 21:03 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY QV-01 Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY QL-02 Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY QV-01 Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 11-123032 EPA 8260D 08/23/21 21:03 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 11-123032 EPA 8260D 08/23/21 21:03 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 of 18 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CE09536-01 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 10:35 Work Order: CE09536 Project: GFL Env - High Point LF, LLC Sampled By:Travis Martinez 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 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23032 EPA 8260D 08/23/21 21:03 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23032 EPA 8260D 08/23/21 21:03 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 67 1 60.0 112 % 53-136 IH23032 EPA 8260D 08123121 21:03 RKY Dibromofluoromethane 75 1 60.0 124 % 67-129 1H23032 EPA 8260D 08123121 21:03 RKY Toluene-d8 63 1 60.0 105 % 59-134 1H23032 EPA 8260D 08123121 21:03 RKY Metals 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 Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 IH23022 EPA 7470A 08/30/21 07:47 RLF QL-02 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 1H21004 EPA 6020B 08/24/21 16:17 RLF Arsenic [7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Barium [7440-39-3]^ 367 ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 12:59 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 12:59 JDH Chromium [7440-47-3]^ 5.25 J ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Cobalt[7440-48-4]^ 12.8 ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Iron [7439-89-6]^ 11700 ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Manganese [7439-96-5]^ 8290 ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Nickel[7440-02-O]^ 3.31 J ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 16:17 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 12:59 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 12:59 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]^ 100000 D ug/L 5 11000 25000 1H24021 EPA 300.0 08/24/21 19:51 ZGW Sulfate as SO4 [14808-79-8]^ 40000 D ug/L 5 14000 25000 1H24021 EPA 300.0 08/24/21 19:51 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 450000 D ug/L 10 140000 150000 1H24015 EPA 310.2 08/24/21 13:21 JAH Total Dissolved Solids^ 350000 ug/L 1 50000 50000 1H23013 SM 254OC-2011 08/23/21 17:42 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of H (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CE09536-01 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 10:35 Work Order: CE09536 Project: GFL Env - High Point LF, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units LF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 37 ug/L 1 0.80 2.0 1H2O020 EPA 8260D 08/20/21 14:27 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.0 1 5.00 99 % 75-125 1H2O020 EPA 8260D 08120121 14:27 KKW Description: 4116-P-3 Lab Sample ID:CE09536-02 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 15:03 Work Order: CE09536 Project: GFL Env - High Point LF, LLC Sampled By:Travis Martinez 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]^ 0.150 u ug/L 1 0.150 0.200 1H23022 EPA 7470A 08/30/21 07:49 RLF QL-02 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 [7440-36-0]^ 0.740 u ug/L 2 0.740 2.00 1H21004 EPA 6020B 08/24/21 16:21 RLF Arsenic[7440-38-2]^ 7.60 u ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Barium [7440-39-3]^ 48.2 ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Beryllium [7440-41-7]^ 0.160 u ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 13:02 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 13:02 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Cobalt [7440-48-4]^ 1.40 u ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Copper[7440-50-8]^ 1.60 u ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Iron [7439-89-6]^ 78.5 ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Manganese [7439-96-5]^ 91.4 ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Nickel[7440-02-0]^ 2.20 u ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Selenium [7782-49-2]^ 6.20 u ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Silver [7440-22-4]^ 1.90 u ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Thallium [7440-28-0]^ 0.220 u ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 16:21 RLF Vanadium [7440-62-2]^ 1.40 u ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH Zinc [7440-66-6]^ 4.40 u ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 13:02 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23032 - EPA 5030E MS Blank (1111-123032-BLKI) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 17:23 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 65 ug/L 60.0 108 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 8 Of 18 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23032 - EPA 50305 MS - Continued (� �Eo www.encolabs.com Blank (IH23032-BLK3) Continued Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 17:23 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 70 u91L 60.0 116 67-129 Toluene-& 60 u91L 60.0 100 59-134 LCS (1H23032-BSI) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 15:31 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 24 1.0 ug/L 20.0 118 75-133 Benzene 19 1.0 ug/L 20.0 96 80-134 Chlorobenzene 20 1.0 ug/L 20.0 99 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 18 1.0 ug/L 20.0 89 74-120 Matrix Spike (1H23032-MS1) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 15:59 Source: CE12539-11 Spike Source %REC 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 123 75-133 Benzene 20 1.0 ug/L 20.0 0.15 U 102 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 104 71-120 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 101 74-120 Matrix Spike Dup (1H23032-MSD1) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 16:27 Source: CE12539-11 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 24 1.0 ug/L 20.0 0.21 U 122 75-133 0.7 20 Benzene 20 1.0 ug/L 20.0 0.15 U 102 80-134 0.2 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 94 80-120 8 16 Toluene 20 1.0 ug/L 20.0 0.14 U 99 71-120 6 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 98 74-120 3 22 Metals by EPA 6000/7000 Series Methods - Quality Control Batch IH23022 - EPA 245.1 Blank (1H23022-BLK1) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:35 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 (1H23022-BSI) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:37 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 6.09 0.200 ug/L 5.00 122 80-120 Matrix Spike (1H23022-MS1) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:38 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.89 0.200 ug/L 5.00 0.150 U 118 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 9 Of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 1H23022 - EPA 245.1 - Continued Matrix Spike Dup (1H23022-MSDl) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:40 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.95 0.200 ug/L 5.00 0.150 U 119 75-125 1 25 Post Spike (1H23022-PS1) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:42 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.53 0.200 ug/L 5.00 -0.0504 111 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH2O026 - EPA 3005A Blank (1H2O026-BLK1) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:40 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 (1H2O026-BS1) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:45 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits Arsenic 200 10.0 ug/L 200 100 80-120 Barium 211 10.0 ug/L 200 105 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 20.2 1.00 ug/L 20.0 101 80-120 Chromium 201 10.0 ug/L 200 101 80-120 Cobalt 206 10.0 ug/L 200 103 80-120 Copper 201 10.0 ug/L 200 100 80-120 Iron 1030 50.0 ug/L 1000 103 80-120 Lead 201 10.0 ug/L 200 101 80-120 Manganese 202 10.0 ug/L 200 101 80-120 Nickel 204 10.0 ug/L 200 102 80-120 Selenium 199 10.0 ug/L 200 100 80-120 Silver 202 10.0 ug/L 200 101 80-120 Vanadium 200 10.0 ug/L 200 100 80-120 Zinc 213 10.0 ug/L 200 106 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. RPD RPD Limit Notes Page 10 of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH20026 - EPA 3005A - Continued Matrix Spike (1H2O026-MS1) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:48 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 200 10.0 ug/L 200 7.60 U 100 75-125 Barium 1660 10.0 ug/L 200 1450 109 75-125 Beryllium 20.2 1.00 ug/L 20.0 0.160 U 101 75-125 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 87 75-125 Chromium 207 10.0 ug/L 200 6.45 100 75-125 Cobalt 207 10.0 ug/L 200 9.04 99 75-125 Copper 193 10.0 ug/L 200 1.60 U 97 75-125 Iron 40900 50.0 ug/L 1000 40100 85 75-125 Lead 196 10.0 ug/L 200 3.10 U 98 75-125 Manganese 11700 10.0 ug/L 200 11500 134 75-125 QM-07 Nickel 201 10.0 ug/L 200 3.52 99 75-125 Selenium 152 10.0 ug/L 200 6.20 U 76 75-125 Silver 214 10.0 ug/L 200 1.90 U 107 75-125 Vanadium 200 10.0 ug/L 200 1.40 U 100 75-125 Zinc 206 10.0 ug/L 200 4.66 101 75-125 Matrix Spike Dup (1H2O026-MSD3) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:51 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 193 10.0 ug/L 200 7.60 U 97 75-125 4 20 Barium 1630 10.0 ug/L 200 1450 93 75-125 2 20 Beryllium 19.7 1.00 ug/L 20.0 0.160 U 99 75-125 2 20 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 88 75-125 0.3 20 Chromium 204 10.0 ug/L 200 6.45 99 75-125 2 20 Cobalt 203 10.0 ug/L 200 9.04 97 75-125 2 20 Copper 188 10.0 ug/L 200 1.60 U 94 75-125 3 20 Iron 40200 50.0 ug/L 1000 40100 11 75-125 2 20 QM-07 Lead 192 10.0 ug/L 200 3.10 U 96 75-125 2 20 Manganese 11500 10.0 ug/L 200 11500 25 75-125 2 20 QM-07 Nickel 198 10.0 ug/L 200 3.52 97 75-125 2 20 Selenium 153 10.0 ug/L 200 6.20 U 76 75-125 0.5 20 Silver 211 10.0 ug/L 200 1.90 U 106 75-125 1 20 Vanadium 195 10.0 ug/L 200 1.40 U 97 75-125 3 20 Zinc 203 10.0 ug/L 200 4.66 99 75-125 2 20 Post Spike (SH2O026-PS3) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:54 Source: CE09538-01 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits RPD Arsenic 0.193 0.0100 mg/L 0.200 -0.00985 97 80-120 Barium 1.63 0.0100 mg/L 0.200 1.45 94 80-120 Beryllium 0.0199 0.00100 mg/L 0.0200 -0.000240 100 80-120 Cadmium 0.0178 0.00100 mg/L 0.0200 -0.00164 89 80-120 Chromium 0.206 0.0100 mg/L 0.200 0.00645 100 80-120 Cobalt 0.207 0.0100 mg/L 0.200 0.00904 99 80-120 Copper 0.191 0.0100 mg/L 0.200 -0.0116 95 80-120 Iron 40.6 0.0500 mg/L 1.00 40.1 47 80-120 Lead 0.199 0.0100 mg/L 0.200 0.000592 99 80-120 Manganese 11.5 0.0100 mg/L 0.200 11.5 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 11 of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1H20026 - EPA 3005A - Continued Post Spike (SH2O026-PS3) Continued Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:54 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 0.204 0.0100 mg/L 0.200 0.00352 100 80-120 Selenium 0.162 0.0100 mg/L 0.200 -0.0483 81 80-120 Silver 0.208 0.0100 mg/L 0.200 0.000990 103 80-120 Vanadium 0.197 0.0100 mg/L 0.200 -0.00232 99 80-120 Zinc 0.208 0.0100 mg/L 0.200 0.00466 102 80-120 Batch IH21004 - EPA 3005A Blank (1H23004-BLKI) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Selenium 0.910 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (1H21004-BSI) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.4 1.00 ug/L 20.0 102 80-120 Selenium 20.8 1.00 ug/L 20.0 104 80-120 Thallium 21.5 1.00 ug/L 20.0 108 80-120 Matrix Spike (1H23004-MS3) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:54 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.8 2.00 ug/L 40.0 0.740 U 102 75-125 Selenium 52.8 2.00 ug/L 40.0 2.49 126 75-125 QM-07 Thallium 37.0 2.00 ug/L 40.0 0.220 U 93 75-125 Matrix Spike Dup (1H23004-MSD3) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:59 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.0 2.00 ug/L 40.0 0.740 U 100 75-125 2 20 Selenium 40.2 2.00 ug/L 40.0 2.49 94 75-125 27 20 QM-07 Thallium 37.0 2.00 ug/L 40.0 0.220 U 93 75-125 0.06 20 Post Spike (iH21004-PSI) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 16:03 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.9 1.00 ug/L 20.0 0.115 114 75-125 Selenium 24.3 1.00 ug/L 20.0 1.25 115 75-125 Thallium 21.2 1.00 ug/L 20.0 0.00630 106 75-125 Classical Chemistry Parameters - Quality Control Batch IH23013 - NO PREP FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 1H23013 - NO PREP - Continued Blank (1H23013-BLKI) Prepared & Analyzed: 08/23/2021 17:42 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 (1H23013-BS1) Prepared & Analyzed: 08/23/2021 17:42 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 960 50 mg/L 1000 96 80-120 Duplicate (1H23013-DUP3) Prepared & Analyzed: 08/23/2021 17:42 Source: CE09536-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 370000 50000 ug/L 350000 7 20 Duplicate (11-123013-DUP2) Prepared & Analyzed: 08/23/2021 17:42 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 1800000 100000 ug/L 1900000 7 20 Batch IH24015 - NO PREP Blank (1H24015-BLK1) Prepared: 08/24/2021 10:04 Analyzed: 08/24/2021 13:12 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 (1H24015-BSI) Prepared: 08/24/2021 10:04 Analyzed: 08/24/2021 13:12 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 98 15 mg/L 100 98 80-120 Matrix Spike (1H24015-MS1) Prepared: 08/24/2021 10:04 Analyzed: 08/24/2021 13:14 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1800000 150000 ug/L 400000 1500000 73 80-120 QM-07 Matrix Spike Dup (1H24015-MSD3) Prepared: 08/24/2021 10:04 Analyzed: 08/24/2021 13:14 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1800000 150000 ug/L 400000 1500000 74 80-120 0.2 25 QM-07 Batch IH24021 - NO PREP Blank (1H24021-BLKI) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 17:48 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 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 18 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 1H24021 - NO PREP - Continued LCS (1H24021-BSI) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 18:05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 51000 5000 ug/L 50000 102 90-110 Sulfate as SO4 51000 5000 ug/L 50000 102 90-110 Matrix Spike (1H24021-MS1) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 18:58 Source: CE09536-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 180000 25000 ug/L 100000 100000 82 90-110 QM-07 Sulfate as SO4 120000 25000 ug/L 100000 40000 79 90-110 QM-07 Matrix Spike (1H24021-MS2) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 19:34 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 590000 120000 ug/L 500000 200000 77 90-110 QM-07 Sulfate as SO4 400000 120000 ug/L 500000 72000 U 79 90-110 QM-07 Matrix Spike Dup (1H24021-MSD1) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 19:16 Source: CE09536-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 190000 25000 ug/L 100000 100000 87 90-110 3 10 QM-07 Sulfate as SO4 260000 25000 ug/L 100000 40000 223 90-110 76 10 QM-07, QM-11 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IH2O020 - EPA 5030E MS Blank (1H2O020-BLK1) Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 10:38 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 4.7 u91L 5.00 94 75-125 LCS (1H2O020-BSI) Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 09:47 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 114 80-133 Toluene-d8 5.0 u91L 5.00 99 75-125 Matrix Spike (1H2O020-MS1) Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 15:18 Source: AE06776-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 120 E 2.0 ug/L 25.0 85 141 80-133 QM-07 Toluene-& 5.1 u91L 5.00 101 75-125 Matrix Spike Dup (1H2O020-MSD1) Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 15:43 Source: AE06776-01 Spike Source %REC RPD Analvte Result Flao 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 14 Of (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IH2O020 - EPA 5030E MS - Continued Matrix Spike Dup (1H2O020-MSD3) Continued Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 15:43 Source: AE06776-01 Analvte Result Flaq 1,4-Dioxane 130 E POL Units 2.0 ug/L Spike Source Level Result 25.0 85 %REC RPD %REC Limits RPD Limit Notes 163 80-133 4 19 QM-07 Toluene-d8 4.9 u91L 5.00 96 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 18 (� �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. QL-02 The associated laboratory control sample exhibited high bias; since the result is ND, there is no impact. 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). QM-11 Precision between duplicate matrix spikes of the same sample was outside acceptance limits. 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 16 of 18 Sample Preservation Verification ENCO Cary Work Order: CE09536 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Project #: 2013788121.102 Logged In: 18-Aug-21 12:50 Logged By: Rachel Ann YcInish f Preservation Check Performed By: DatelTime: F�h "l T CE09536-01 Cont Type Pres (pH) Requirement pH Checked / In Control pH Adjusted DatelTime Adiusted Reagent Used/Comments B 250mLP+HNO3 2 sY 1 N I NA I Y 1(NJ- NA Rea ent Name ID 1 2 pH Strip ID Reagent Name ID 3 4 Rea ent Name ID 5 6 C:lelmntlPrintlwko_Preservation Check. rpt Page 18 of 18 WORK ORDER Printed: 8/19/2021 8:34:42AM CE09536 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Amanda L. Gaines Project: GFL Env - High Point LF, LLC Project Number: 2013788121.102 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: Rachel Ann Yonish Date Received: 18-Aug-21 08:30 Logged In By: Rachel Ann Yonish Date Logged In: 18-Aug-21 12:50 Work Order Comments: RED received at 1.0°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 Tuesday, September 7, 2021 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 2013788121.102, Project Name/Desc: GFL Env - High Point, LLC ENCO Workorder(s): CE09538 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Wednesday, August 18, 2021. 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, Amanda L. Gaines 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 rJ7 PROJECT NARRATIVE Date: September 7, 2021 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point, LLC Lab ID: CE09538 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 8260D LCS exhibited a high bias for 2-Butanone, Acetone, Isobutyl alcohol, and trans- 1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1-Trichloroethane, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, Acetone, Bromodichloromethane, Bromomethane, Chloroprene, Methacrylonitrile, and trans- 1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The spike recoveries for 1,1,1-Trichloroethane, 1,1-Dichloroethene, 2-Butanone, Acetone, Bromoform, Carbon tetrachloride, Methylene chloride, and trans- 1,4-Dichloro-2-butene were outside control limits for the MS and/or MSD samples; however, these analytes were not detected in the associated samples. The spike recovery for 1,4-Dioxane was outside control limits for the MS and MSD samples. The QC batches were approved based on acceptable LCS recovery of this analyte. The 8270E CCV exhibited a low bias for Butylbenzylphthalate, any reported result should be considered estimated The LCS exhibited a high bias for Mercury; however, this element was not detected in the associated samples. The spike recoveries for Iron and Manganese were outside control limits for the MS, MSD, and/or Post Digestion spike samples. The QC batches were approved based on acceptable LCS recovery of these elements. The spike recoveries for Alkalinity, Chloride, Cyanide, Sulfate, and Sulfide were outside control limits for the MS and MSD samples, the precision between duplicate spikes of Sulfate exceeded acceptance criteria. The QC batches were approved based on acceptable LCS recovery of these analytes. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for 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. Amanda Gaines 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 57 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MW2 (MS/MSD) Lab ID: CE09538-01 Sampled: 08/17/21 09:23 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/14/21 08/24/21 10:27 08/24/21 20:44 EPA 310.2 NO PREP 08/31/21 08/24/21 10:04 08/24/21 13:13 EPA 6010D EPA 3005A 02/13/22 08/20/21 16:08 08/24/21 11:42 EPA 6020B EPA 3005A 02/13/22 08/21/21 08:37 08/24/21 16:26 EPA 7470A EPA 245.1 09/14/21 08/23/21 14:19 08/30/21 07:51 EPA 8260D EPA 503013_MS 08/31/21 08/23/21 19:04 08/24/21 08:27 SM 254OC-2011 NO PREP 08/24/21 08/23/21 17:42 08/23/21 17:42 Client ID: 4116-MW2 (MS/MSD) Lab ID: CE09538-OIRE1 Sampled: 08/17/21 09:23 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/14/21 08/24/21 10:27 08/25/21 05:31 EPA 8260D EPA 503013_MS 08/31/21 08/24/21 09:02 08/24/21 12:46 Client ID: 4116-MW4S Lab ID: CE09538-02 Sampled: 08/16/21 15:07 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/21 08/24/21 10:27 08/24/21 21:02 EPA 310.2 NO PREP 08/30/21 08/24/21 10:04 08/24/21 13:23 EPA 6010D EPA 3005A 02/12/22 08/20/21 16:08 08/24/21 13:21 EPA 6020B EPA 3005A 02/12/22 08/21/21 08:37 08/24/21 16:56 EPA 7470A EPA 245.1 09/13/21 08/23/21 14:19 08/30/21 07:53 EPA 8260D EPA 503013_MS 08/30/21 08/23/21 19:04 08/24/21 10:17 SM 2540C-2011 NO PREP 08/23/21 08/23/21 17:42 08/23/21 17:42 Client ID: 4116-MW4S Lab ID: CE09538-02RE1 Sampled: 08/16/21 15:07 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 08/30/21 08/24/21 09:02 08/24/21 11:54 Client ID: 4116-MW5 Lab ID: CE09538-03 Sampled: 08/16/21 11:18 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/21 08/24/21 10:27 08/24/21 21:20 EPA 310.2 NO PREP 08/30/21 08/24/21 10:04 08/24/21 13:24 EPA 6010D EPA 3005A 02/12/22 08/20/21 16:08 08/24/21 13:23 EPA 6020E EPA 3005A 02/12/22 08/21/21 08:37 08/24/21 17:01 EPA 7470A EPA 245.1 09/13/21 08/23/21 14:19 08/30/21 07:58 EPA 8260D EPA 503013_MS 08/30/21 08/20/21 00:00 08/20/21 12:46 EPA 8260D EPA 5030B_MS 08/30/21 08/23/21 19:04 08/24/21 10:44 SM 2540C-2011 NO PREP 08/23/21 08/23/21 17:42 08/23/21 17:42 Client ID: 4116-MW6 Lab ID: CE09538-04 Sampled: 08/16/21 13:25 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/21 08/24/21 10:27 08/24/21 21:37 EPA 310.2 NO PREP 08/30/21 08/24/21 10:04 08/24/21 13:24 EPA 6010D EPA 3005A 02/12/22 08/20/21 16:08 08/24/21 13:26 EPA 6020E EPA 3005A 02/12/22 08/21/21 08:37 08/24/21 17:05 EPA 7470A EPA 245.1 09/13/21 08/23/21 14:19 08/30/21 08:00 EPA 8260D EPA 503013_MS 08/30/21 08/23/21 19:04 08/24/21 11:12 SM 254OC-2011 NO PREP 08/23/21 08/23/21 17:42 08/23/21 17:42 Client ID: 4116-MW6 Lab ID: CE09538-04RE1 Sampled: 08/16/21 13:25 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/21 08/24/21 10:27 08/25/21 05:49 EPA 8260D EPA 503013_MS 08/30/21 08/24/21 09:02 08/24/21 13:11 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 of rJ7 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MW8 Lab ID: CE09538-05 Sampled: 08/17/21 12:54 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/14/21 08/24/21 10:27 08/24/21 22:30 EPA 310.2 NO PREP 08/31/21 08/24/21 10:04 08/24/21 13:25 EPA 6010D EPA 3005A 02/13/22 08/20/21 16:08 08/24/21 13:33 EPA 6020B EPA 3005A 02/13/22 08/21/21 08:37 08/24/21 17:10 EPA 7470A EPA 245.1 09/14/21 08/23/21 14:19 08/30/21 08:02 EPA 8081E EPA 3510C 08/24/21 10/03/21 08/24/21 12:33 09/03/21 13:33 EPA 8082A EPA 3510C 08/17/22 10/03/21 08/24/21 12:37 09/03/21 13:33 EPA 8151A EPA 3510C 08/24/21 10/03/21 08/24/21 08:15 08/25/21 18:06 EPA 8260D EPA 503013_MS 08/31/21 08/23/21 19:04 08/24/21 11:39 EPA 8270E EPA 3510C MS 08/24/21 10/02/21 08/23/21 08:57 08/26/21 20:08 EPA 9014 Same 08/31/21 08/25/21 10:20 08/25/21 17:16 SM 254OC-2011 NO PREP 08/24/21 08/23/21 17:42 08/23/21 17:42 SM 4500S2 D-2011 NO PREP 08/24/21 08/23/21 14:00 08/23/21 14:48 Client ID: 4116-MW8 Lab ID: CE09538-05RE1 Sampled: 08/17/21 12:54 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 08/31/21 08/24/21 09:02 08/24/21 12:20 Client ID: 4116-Field Blank Lab ID: CE09538-06 Sampled: 08/17/21 16:15 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/22 08/20/21 16:08 08/24/21 13:37 EPA 6020E EPA 3005A 02/13/22 08/21/21 08:37 08/24/21 17:14 EPA 7470A EPA 245.1 09/14/21 08/23/21 14:19 08/30/21 08:03 EPA 8260D EPA 503013_MS 08/31/21 08/20/21 00:00 08/20/21 14:02 EPA 8260D EPA 5030B_MIS 08/31/21 08/23/21 19:04 08/24/21 08:00 Client ID: 4116-Trip Blank Lab ID: CE09538-07 Sampled: 08/16/21 11:18 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 08/30/21 08/20/21 00:00 08/20/21 11:03 EPA 8260D EPA 503013_MS 08/30/21 08/23/21 19:04 08/24/21 07:05 Client ID: 4116-MW1 Lab ID: CE09538-08 Sampled: 08/16/21 09:01 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/21 08/24/21 10:27 08/24/21 22:48 EPA 310.2 NO PREP 08/30/21 08/24/21 10:04 08/24/21 13:26 EPA 6010D EPA 3005A 02/12/22 08/20/21 16:08 08/24/21 13:39 EPA 6020B EPA 3005A 02/12/22 08/21/21 08:37 08/24/21 17:19 EPA 7470A EPA 245.1 09/13/21 08/23/21 14:19 08/30/21 08:05 SM 254OC-2011 NO PREP 08/23/21 08/23/21 17:42 08/23/21 17:42 Client ID: 4116-MW1 Lab ID: CE09538-08RE1 Sampled: 08/16/21 09:01 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/21 08/24/21 10:27 08/25/21 06:06 Client ID: 4316-MW3 Lab ID: CE09538-09 Sampled: 08/17/21 11:37 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/14/21 08/24/21 10:27 08/24/21 23:06 EPA 310.2 NO PREP 08/31/21 08/24/21 10:04 08/24/21 13:28 EPA 6010D EPA 3005A 02/13/22 08/20/21 16:23 08/24/21 10:32 EPA 6020B EPA 3005A 02/13/22 08/21/21 08:37 08/24/21 17:23 EPA 7470A EPA 245.1 09/14/21 08/23/21 14:19 08/30/21 08:07 SM 254OC-2011 NO PREP 08/24/21 08/23/21 17:42 08/23/21 17:42 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 of rJ7 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MW7S Lab ID: CE09538-10 Sampled: 08/16/21 09:58 Received: 08/18/21 08:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/21 08/24/21 10:27 08/24/21 23:23 EPA 310.2 NO PREP 08/30/21 08/24/21 10:04 08/24/21 13:28 EPA 6010D EPA 3005A 02/12/22 08/20/21 16:23 08/24/21 10:34 EPA 6020B EPA 3005A 02/12/22 08/21/21 08:37 08/24/21 17:28 EPA 7470A EPA 245.1 09/13/21 08/23/21 14:19 08/30/21 08:09 SM 2540C-2011 NO PREP 08/23/21 08/23/21 17:42 08/23/21 17:42 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) Of 57 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW2 (MS/MSD) Lab ID: CE09538-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 1450 1.10 10.0 ug/L EPA 6010D Benzene 3.6 0.15 1.0 ug/L EPA 8260D Chloride 200000 D 54000 120000 ug/L EPA 300.0 Chromium - Total 6.45 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 9.04 J 1.40 10.0 ug/L EPA 6010D Iron - Total 40100 22.0 50.0 ug/L EPA 6010D Manganese - Total 11500 1.50 10.0 ug/L EPA 6010D Nickel - Total 3.52 J 2.20 10.0 ug/L EPA 6010D Total Alkalinity as CaCO3 1500000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 1900000 100000 100000 ug/L SM 2540C-2011 Zinc - Total 4.66 1 4.40 10.0 ug/L EPA 6010D Client ID: 4116-MW2 (MS/MSD) Lab ID: CE09538-01RE3 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 110 D 4.0 10 ug/L EPA 8260D Sulfate as SO4 12000 2900 5000 ug/L EPA 300.0 Client ID: 4116-MW4S Lab ID: CE09538-02 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 56.3 1.10 10.0 ug/L EPA 6010D Chloride 20000 D 4400 10000 ug/L EPA 300.0 Iron - Total 946 22.0 50.0 ug/L EPA 6010D Manganese - Total 61.2 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 31000 D 5800 10000 ug/L EPA 300.0 Total Alkalinity as CaCO3 23000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 110000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW4S Lab ID: CE09538-02RE1 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 5.3 0.80 2.0 ug/L EPA 8260D Client ID: 4116-MWS Lab ID: CE09538-03 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 10 0.80 2.0 ug/L EPA 8260D Barium - Total 77.5 1.10 10.0 ug/L EPA 6010D Chloride 12000 D 4400 10000 ug/L EPA 300.0 Iron - Total 11800 22.0 50.0 ug/L EPA 6010D Manganese - Total 1600 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 49000 D 5800 10000 ug/L EPA 300.0 Total Alkalinity as CaCO3 130000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 220000 50000 50000 uq/L SM 2540C-2011 Client ID: 4116-MW6 Lab ID: CE09538-04 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 898 1.10 10.0 ug/L EPA 6010D Benzene 4.7 0.15 1.0 ug/L EPA 8260D Chloride 220000 D 54000 120000 ug/L EPA 300.0 Chromium - Total 7.88 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 5.30 J 1.40 10.0 ug/L EPA 6010D Iron - Total 12000 22.0 50.0 ug/L EPA 6010D Manganese - Total 6990 1.50 10.0 ug/L EPA 6010D Nickel- Total 6.17 J 2.20 10.0 ug/L EPA 6010D Tetrahydrofuran 150 0.53 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 1800000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 2400000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW6 Lab ID: CE09538-04RE1 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 260 D 8.0 20 ug/L EPA 8260D Sulfate as SO4 37000 2900 5000 ug/L EPA 300.0 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 57 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW8 Lab ID: CE09538-05 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 200 1.10 10.0 ug/L EPA 6010D Benzene 1.7 0.15 1.0 ug/L EPA 8260D Chloride 150000 D 11000 25000 ug/L EPA 300.0 Chromium - Total 13.4 1.40 10.0 ug/L EPA 6010D Cobalt - Total 6.01 J 1.40 10.0 ug/L EPA 6010D Iron - Total 2640 22.0 50.0 ug/L EPA 6010D Manganese - Total 25600 1.50 10.0 ug/L EPA 6010D Nickel - Total 4.53 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 58000 D 14000 25000 ug/L EPA 300.0 Tetrahydrofuran 69 0.53 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 660000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 1200000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW8 Lab ID: CE09538-05RE1 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 60 0.80 2.0 ug/L EPA 8260D Client ID: 4116-MW1 Lab ID: CE09538-08 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 34.0 1.10 10.0 ug/L EPA 6010D Chloride 17000 D 4400 10000 ug/L EPA 300.0 Manganese - Total 4.48 1 1.50 10.0 ug/L EPA 6010D Total Alkalinity as CaCO3 22000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 400000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW3 Lab ID: CE09538-08RE3 Analvte Results Flag MDL PQL Units Method Notes Sulfate as SO4 190000 D 14000 25000 ug/L EPA 300.0 Client ID: 4116-MW3 Lab ID: CE09538-09 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 35.2 1.10 10.0 ug/L EPA 6010D Chloride 10000 D 4400 10000 ug/L EPA 300.0 Chromium - Total 3.14 J 1.40 10.0 ug/L EPA 6010D Iron - Total 353 22.0 50.0 ug/L EPA 6010D Manganese - Total 20.1 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 11000 D 5800 10000 ug/L EPA 300.0 Total Alkalinity as CaCO3 30000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 82000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW7S Lab ID: CE09538-10 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 480 1.10 10.0 ug/L EPA 6010D Chloride 38000 D 4400 10000 ug/L EPA 300.0 Iron - Total 39.9 J 22.0 50.0 ug/L EPA 6010D Manganese - Total 14.0 1.50 10.0 ug/L EPA 6010D Nickel - Total 7.82 J 2.20 10.0 ug/L EPA 6010D Silver - Total 2.28 J 1.90 10.0 ug/L EPA 6010D Sulfate as SO4 43000 D 5800 10000 ug/L EPA 300.0 Total Alkalinity as CaCO3 360000 D 70000 75000 ug/L EPA 310.2 Total Dissolved Solids 520000 50000 50000 ug/L SM 2540C-2011 Vanadium - Total 5.79 J 1.40 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 57 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CE09538-01 Received: 08/18/21 08:30 Matrix: Ground Water Sampled: 08/17/2109:23 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 08:27 RKY 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 08:27 RKY QM-07, QV-01 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,2-Dichloropropene [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 11-123035 EPA 8260D 08/24/21 08:27 RKY 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 1H23035 EPA 8260D 08/24/21 08:27 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Acetone[67-64-1]^ 10 U ug/L 1 10 20 1H23035 EPA 8260D 08/24/21 08:27 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 1H23035 EPA 8260D 08/24/21 08:27 RKY Benzene [71-43-2]^ 3.6 ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY QM-07 QV-01 QV-01 QL-02, QM-07 QL-02, QM-07, QV-01 QV-01 QM-07 QV-01 QM-07 QM-07 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 of rJ7 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CE09538-01 Received: 08/18/21 08:30 Matrix: Ground Water Sampled: 08/17/2109:23 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Notes trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY QL-02, QM-07, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 08:27 RKY Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 69 1 60.0 115 % 53-136 IH23035 EPA 8260D 08124121 08:27 RKY Dibromofluoromethane 69 1 60.0 116 % 67-129 IH23035 EPA 8260D 08124121 08:27 RKY Toluene-d8 61 1 60.0 101 % 59-134 1H23035 EPA6260D 081241210627 RKY Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 5911 Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed By Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 1H23022 EPA 7470A 08/30/21 07:51 RLF QL-02 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 1H21004 EPA 6020B 08/24/21 16:26 RLF Arsenic [7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Barium [7440-39-3]^ 1450 ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 11:42 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 11:42 JDH Chromium [7440-47-3]^ 6.45 J ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Cobalt[7440-48-4]^ 9.04 J ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Iron [7439-89-6]^ 40100 ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Manganese [7439-96-5]^ 11500 ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Nickel[7440-02-O]^ 3.52 J ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 16:26 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH Zinc[7440-66-6]^ 4.66 J ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 11:42 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 of rJ7 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CE09538-01 Received: 08/18/21 08:30 Matrix: Ground Water Sampled: 08/17/2109:23 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analvte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Chloride [16887-00-6]^ 200000 D ug/L 25 54000 120000 1H24021 EPA 300.0 08/24/21 20:44 ZGW Sulfate as SO4 [14808-79-8]^ 12000 ug/L 1 2900 5000 1H24021 EPA 300.0 08/25/21 05:31 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 1500000 D ug/L 10 140000 150000 1H24015 EPA 310.2 08/24/21 13:13 JAH Total Dissolved Solids^ 1900000 ug/L 2 100000 100000 1H23013 SM 254OC-2011 08/23/21 17:42 DMJ Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analvte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 110 D ug/L 5 4.0 10 1H24020 EPA 8260D 08/24/21 12:46 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.7 1 5.00 94 % 75-125 1H24020 EPA 8260D 08124121 12:46 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of 57 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CE09538-02 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 15:07 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 10:17 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 10:17 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 10:17 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 10:17 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 10:17 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Chlorobenzene [108-90-7]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Ethylbenzene [100-41-4]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Methylene chloride [75-09-2]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Styrene [100-42-5]^ 0.11 u ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 10:17 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 10:17 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 10:17 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CE09538-02 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 15:07 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 10:17 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 10:17 RKY Xylenes(Total)[1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 10:17 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 65 1 60.0 108 % 53-136 IH23035 EPA 8260D 08124121 10:17 RKY Dlbromofluoromethane 71 1 60.0 118 % 67-129 1H23035 EPA 8260D 08124121 10:17 RKY Toluene-d8 60 1 60.0 99 % 59-134 1H23035 EPA 8260D 08124121 10:17 RKY Metals 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 Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 IH23022 EPA 7470A 08/30/21 07:53 RLF QL-02 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 1H21004 EPA 6020B 08/24/21 16:56 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Barium [7440-39-3]^ 56.3 ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 13:21 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 13:21 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Iron [7439-89-6]^ 946 ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Manganese [7439-96-5]^ 61.2 ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 16:56 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:21 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 13:21 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]^ 20000 D ug/L 2 4400 10000 1H24021 EPA 300.0 08/24/21 21:02 ZGW Sulfate as SO4 [14808-79-8]^ 31000 D ug/L 2 5800 10000 1H24021 EPA 300.0 08/24/21 21:02 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 23000 ug/L 1 14000 15000 1H24015 EPA 310.2 08/24/21 13:23 JAH Total Dissolved Solids^ 110000 ug/L 1 50000 50000 1H23013 SM 254OC-2011 08/23/21 17:42 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CE09538-02 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 15:07 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez 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]^ 5.3 ug/L 1 0.80 2.0 1H24020 EPA 8260D 08/24/21 11:54 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.7 1 5.00 95 % 75-125 1H24020 EPA 8260D 08124121 11:54 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 57 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CE09538-03 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 11:18 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 10:44 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 10:44 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 10:44 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 10:44 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 10:44 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Chlorobenzene [108-90-7]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Ethylbenzene [100-41-4]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Methylene chloride [75-09-2]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Styrene [100-42-5]^ 0.11 u ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 10:44 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 10:44 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 10:44 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CE09538-03 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 11:18 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 10:44 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 10:44 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 10:44 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 66 1 60.0 109 % 53-136 IH23035 EPA 8260D 08124121 10:44 RKY Dlbromofluoromethane 70 1 60.0 117 % 67-129 1H23035 EPA 8260D 08124121 10:44 RKY Toluene-d8 60 1 60.0 101 % 59-134 1H23035 EPA 8260D 08124121 10:44 RKY Metals 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 Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 IH23022 EPA 7470A 08/30/21 07:58 RLF QL-02 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 1H21004 EPA 6020B 08/24/21 17:01 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Barium [7440-39-3]^ 77.5 ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 13:23 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 13:23 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Iron [7439-89-6]^ 11800 ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Manganese [7439-96-5]^ 1600 ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 17:01 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:23 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 13:23 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 D ug/L 2 4400 10000 1H24021 EPA 300.0 08/24/21 21:20 ZGW Sulfate as SO4 [14808-79-8]^ 49000 D ug/L 2 5800 10000 1H24021 EPA 300.0 08/24/21 21:20 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 130000 ug/L 1 14000 15000 1H24015 EPA 310.2 08/24/21 13:24 JAH Total Dissolved Solids^ 220000 ug/L 1 50000 50000 1H23013 SM 254OC-2011 08/23/21 17:42 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CE09538-03 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 11:18 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez 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]^ 10 ug/L 1 0.80 2.0 1H2O020 EPA 8260D 08/20/21 12:46 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.7 1 5.00 93 % 75-125 IH2O020 EPA 8260D 08120121 12:46 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 57 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CE09538-04 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 13:25 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 11:12 RKY QL-02 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 11:12 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 11:12 RKY Acetone [67-64-1]^ 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 11:12 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 11:12 RKY Benzene [71-43-2]^ 4.7 ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 11:12 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY Tetrahydrofuran [109-99-9]^ 150 ug/L 1 0.53 1.0 1H23035 EPA 8260D 08/24/21 11:12 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 11:12 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 11:12 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 11:12 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CE09538-04 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 13:25 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 11:12 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 11:12 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 11:12 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 68 1 60.0 114 % 53-136 IH23035 EPA 8260D 08124121 11:12 RKY Dlbromofluoromethane 67 1 60.0 111 % 67-129 1H23035 EPA 8260D 08124121 11:12 RKY Toluene-d8 62 1 60.0 104 % 59-134 1H23035 EPA 8260D 08124121 11:12 RKY Metals 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 Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 IH23022 EPA 7470A 08/30/21 08:00 RLF QL-02 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 1H21004 EPA 6020B 08/24/21 17:05 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Barium [7440-39-3]^ 898 ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 13:26 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 13:26 JDH Chromium [7440-47-3]^ 7.88 J ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Cobalt[7440-48-4]^ 5.30 J ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Iron [7439-89-6]^ 12000 ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Manganese [7439-96-5]1 6990 ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Nickel[7440-02-O]^ 6.17 J ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 17:05 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:26 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 13:26 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]^ 220000 D ug/L 25 54000 120000 1H24021 EPA 300.0 08/24/21 21:37 ZGW Sulfate as SO4 [14808-79-8]^ 37000 ug/L 1 2900 5000 1H24021 EPA 300.0 08/25/21 05:49 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 1800000 D ug/L 10 140000 150000 1H24015 EPA 310.2 08/24/21 13:24 JAH Total Dissolved Solids^ 2400000 ug/L 1 50000 50000 1H23013 SM 254OC-2011 08/23/21 17:42 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CE09538-04 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/16/21 13:25 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez 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 Ay Notes 1,4-Dioxane [123-91-1]^ 260 D ug/L 10 8.0 20 1H24020 EPA 8260D 08/24/21 13:11 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.7 1 5.00 94 % 75-125 1H24020 EPA 8260D 08124121 13:11 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 of 57 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE09538-05 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 12:54 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,1-Dichloropropene [563-58-6]A 0.15 U ug/L 1 0.15 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,2,4-Trichlorobenzene [120-82-1]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY QV-01 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY QV-01 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,3-Dichlorobenzene [541-73-1]A 0.15 U ug/L 1 0.15 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,3-Dichloropropane [142-28-9]^ 0.16 U ug/L 1 0.16 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 2,2-Dichloropropane [594-20-7]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 11:39 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 3-Chloropropene[107-05-1]A 0.11 U ug/L 1 0.11 1.0 IH23035 EPA 8260D 08/24/21 11:39 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 11:39 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 11:39 RKY QL-02, QV-01 Acetonitrile [75-05-8]A 5.0 u ug/L 1 5.0 10 11-123035 EPA 8260D 08/24/21 11:39 RKY Acrolein [107-02-8]A 4.0 u ug/L 1 4.0 10 11-123035 EPA 8260D 08/24/21 11:39 RKY Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 11:39 RKY Benzene [71-43-2]^ 1.7 ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY QV-01 Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY QV-01 Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Chloroprene [126-99-8]A 0.64 u ug/L 1 0.64 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY QV-01 cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Dichlorodifluoromethane [75-71-8]A 0.20 U ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Ethyl Methacrylate [97-63-2]A 0.38 U ug/L 1 0.38 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 11:39 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 11:39 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 Of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE09538-05 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 12:54 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed AX Notes Isobutyl alcohol [78-83-1]^ 11 U ug/L 1 11 50 1H23035 EPA 8260D 08/24/21 11:39 RKY QL-02 Methacrylonitrile [126-98-7]^ 4.9 U ug/L 1 4.9 10 1H23035 EPA 8260D 08/24/21 11:39 RKY QV-01 Methyl Methacrylate [80-62-6]^ 0.51 U ug/L 1 0.51 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Naphthalene [91-20-3]^ 0.11 U ug/L 1 0.11 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Propionitrile [107-12-0]^ 5.0 U ug/L 1 5.0 10 1H23035 EPA 8260D 08/24/21 11:39 RKY Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Tetrahydrofuran [309-99-9]^ 69 ug/L 1 0.53 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 u ug/L 1 0.70 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Vinyl acetate [108-05-4]^ 0.95 u ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Xylenes (Total) [1330-20-7]^ 0.45 u ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 11:39 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 66 1 60.0 111 % 53-136 1H23035 EPA 6260D 08124121 11:39 RKY Dibromofluoromethane 71 1 60.0 118 % 67-129 1H23035 EPA 6260D 08124121 11:39 RKY Toluene-d8 61 1 60.0 102 % 59-134 1H23035 EPA 6260D 08124121 11:39 RKY Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl 1,2,4,5-Tetrachlorobenzene [95-94-3]1 1,3,5-Trinitrobenzene [99-35-4]^ 1,3-Dinitrobenzene [99-65-0]^ 1,4-Naphthoquinone [130-15-4]^ 1,4-Phenylenediamine [106-50-3]^ 1-Naphthylamine [134-32-7]1 2,3,4,6-Tetrachlorophenol [58-90-2]^ 2,4,5-Trichlorophenol [95-95-4]1 2,4,6-Trichlorophenol[88-06-2]1 2,4-Dichlorophenol[120-83-2]^ 2,4-Di methyl phenol[105-67-9]^ 2,4-Dinitrophenol[51-28-5]1 2,4-Dinitrotoluene [121-14-2]^ 2,6-Dichlorophenol[87-65-0]^ 2,6-Dinitrotoluene [606-20-2]^ 2-Acetylaminofluorene [53-96-3]1 2-Chloronaphthalene [91-58-7]^ 2-Chlorophenol[95-57-8]1 2-Methyl-4,6-dinitrophenol [534-52-1]^ 2- Methyl naphthalene [91-57-6]^ FINAL Results Flag Units DF MDL P L Batch Method 3.4 U ug/L 1 3.4 10 1H23006 EPA 8270E 3.0 U ug/L 1 3.0 10 1H23006 EPA 8270E 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 4.0 U ug/L 1 4.0 10 1H23006 EPA 8270E 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 2.3 U ug/L 1 2.3 10 1H23006 EPA 8270E 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 2.0 U ug/L 1 2.0 10 1H23006 EPA 8270E 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 3.1 U ug/L 1 3.1 10 1H23006 EPA 8270E 2.8 U ug/L 1 2.8 10 1H23006 EPA 8270E 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 3.3 U ug/L 1 3.3 10 1H23006 EPA 8270E 2.8 U ug/L 1 2.8 10 1H23006 EPA 8270E This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Analyzed By Notes 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM 08/26/2120:08 DFM Page 21 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE09538-05 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 12:54 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 2-Methylphenol[95-48-7]^ 2.0 U ug/L 1 2.0 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 2-Naphthylamine [91-59-8]^ 3.0 U ug/L 1 3.0 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 2-Nitroaniline [88-74-4]^ 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 2-Nitrophenol[88-75-5]^ 1.1 U ug/L 1 1.1 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 3 & 4-Methylphenol[108-39-4/106-44-5]^ 2.1 U ug/L 1 2.1 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 3,3'-Dichlorobenzidine [91-94-1]^ 3.5 U ug/L 1 3.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 3,3'-Dimethylbenzidine [119-93-7]^ 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 3-Methylcholanthrene [56-49-5]^ 1.3 U ug/L 1 1.3 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 3-Nitroaniline [99-09-2]^ 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 4-Aminobiphenyl[92-67-1]^ 3.5 u ug/L 1 3.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 4-Bromophenyl-phenylether[101-55-3]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 4-Chloro-3-methylphenol[59-50-7]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 4-Chloroaniline [106-47-8]^ 2.0 U ug/L 1 2.0 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 4-Chlorophenyl-phenylether[7005-72-3]^ 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 4-Nitroaniline [100-01-6]^ 3.2 U ug/L 1 3.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 4-Nitrophenol[100-02-7]^ 2.8 U ug/L 1 2.8 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 5-Nitro-o-toluidine [99-55-8]^ 3.2 u ug/L 1 3.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 7,12-Di methyl benz(a)anth racene 1.4 U ug/L 1 1.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM [57-97-6]^ a,a-Dimethylphenethylamine [122-09-8]^ 3.5 U ug/L 1 3.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Acenaphthene[83-32-9]^ 2.7 U ug/L 1 2.7 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Acenaphthylene[208-96-8]^ 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Acetophenone[98-86-2]^ 2.0 U ug/L 1 2.0 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Anthracene [120-12-7]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Benzo(a)anthracene [56-55-3]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Benzo(a)pyrene [50-32-8]^ 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Benzo(b)fluoranthene [205-99-2]^ 2.8 U ug/L 1 2.8 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Benzo(g,h,i)perylene [191-24-2]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Benzo(k)fluoranthene[207-08-9]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Benzylalcohol [100-51-6]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Bis(2-chloroethoxy)methane [111-91-1]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Bis(2-chloroethyl)ether[111-44-4]^ 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Bis(2-chloroisopropyl)ether[108-60-1]^ 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Bis(2-ethylhexyl)phthalate [117-81-7]^ 1.9 U ug/L 1 1.9 5.0 1H23006 EPA 8270E 08/26/21 20:08 DFM Butyl benzylphtha late [85-68-7]^ 3.8 U ug/L 1 3.8 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Chlorobenzilate [510-15-6]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Chrysene [218-01-9]^ 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Diallate [2303-16-4]^ 1.9 U ug/L 1 1.9 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Dibenzo(a,h)anthracene [53-70-3]^ 2.3 U ug/L 1 2.3 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Dibenzofuran [132-64-9]^ 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Diethylphtha late [84-66-2]^ 2.4 U ug/L 1 2.4 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Dimethoate [60-51-5]^ 2.3 U ug/L 1 2.3 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Dimethylphtha late [131-11-3]^ 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Di-n-butylphthalate [84-74-2]^ 2.8 U ug/L 1 2.8 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Di-n-octylphthalate [117-84-0]^ 3.1 U ug/L 1 3.1 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Disulfoton [298-04-4]^ 2.0 U ug/L 1 2.0 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Ethyl methanesulfonate [62-50-0]^ 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE09538-05 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 12:54 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Famphur[52-85-7]^ 2.7 U ug/L 1 2.7 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Fluoranthene [206-44-0]^ 3.1 U ug/L 1 3.1 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Fluorene [86-73-7]^ 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Hexachlorobenzene[118-74-1]^ 2.3 U ug/L 1 2.3 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Hexachlorobutadiene [87-68-3]^ 2.8 U ug/L 1 2.8 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Hexachlorocyclopentadiene [77-47-4]^ 2.7 U ug/L 1 2.7 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Hexachloroethane [67-72-1]^ 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Hexachloropropene[1888-71-7]^ 6.8 U ug/L 1 6.8 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Indeno(1,2,3-cd)pyrene [193-39-5]^ 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Isodrin [465-73-6]^ 1.5 U ug/L 1 1.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Isophorone [78-59-1]^ 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Isosafrole [120-58-1]^ 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Kepone[143-50-0]^ 7.2 U ug/L 1 7.2 20 1H23006 EPA 8270E 08/26/21 20:08 DFM Methapyrilene [91-80-5]^ 4.8 U ug/L 1 4.8 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Methyl Methanesulfonate [66-27-3]^ 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Methyl parathion [298-00-0]^ 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Nitrobenzene [98-95-3]^ 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM N-Nitrosodiethylamine [55-18-5]^ 2.1 U ug/L 1 2.1 10 1H23006 EPA 8270E 08/26/21 20:08 DFM N-Nitrosodimethylamine [62-75-9]^ 1.9 U ug/L 1 1.9 10 1H23006 EPA 8270E 08/26/21 20:08 DFM N-Nitrosodi-n-butylamine [924-16-3]^ 2.0 U ug/L 1 2.0 10 1H23006 EPA 8270E 08/26/21 20:08 DFM N-Nitroso-di-n-propylamine [621-64-7]^ 2.3 U ug/L 1 2.3 10 1H23006 EPA 8270E 08/26/21 20:08 DFM N-nitrosodiphenylamine/Diphenylamine 2.5 U ug/L 1 2.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM [86-30-6/122-39-4]^ N-Nitrosomethylethylamine [10595-95-6]^ 1.9 U ug/L 1 1.9 10 1H23006 EPA 8270E 08/26/21 20:08 DFM N-Nitrosopiperidine [100-75-4]^ 2.1 U ug/L 1 2.1 10 1H23006 EPA 8270E 08/26/21 20:08 DFM N-Nitrosopyrrolidine [930-55-2]^ 1.9 U ug/L 1 1.9 10 1H23006 EPA 8270E 08/26/21 20:08 DFM 0,0,0-Triethylphosphorothioate 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM [126-68-1]^ o-Toluidine [95-53-4]^ 1.6 U ug/L 1 1.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Parathion [56-38-2]^ 1.7 U ug/L 1 1.7 10 1H23006 EPA 8270E 08/26/21 20:08 DFM p-Dimethylaminoazobenzene [60-11-7]^ 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Pentachlorobenzene [608-93-5]^ 2.7 U ug/L 1 2.7 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Pentachloronitrobenzene [82-68-8]^ 1.9 U ug/L 1 1.9 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Phenacetin [62-44-2]^ 2.7 U ug/L 1 2.7 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Phenanthrene[85-01-8]^ 2.6 U ug/L 1 2.6 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Phenol[108-95-2]^ 1.7 U ug/L 1 1.7 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Phorate [298-02-2]^ 2.1 U ug/L 1 2.1 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Pronamide[23950-58-5]^ 1.7 U ug/L 1 1.7 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Pyrene[129-00-0]^ 3.5 U ug/L 1 3.5 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Safrole [94-59-7]^ 2.2 U ug/L 1 2.2 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Thionazin [297-97-2]^ 2.3 U ug/L 1 2.3 10 1H23006 EPA 8270E 08/26/21 20:08 DFM Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes 2,4,6-Tribromophenol 100 1 100 100 % 10-179 1H23006 EPA 8270E 08126121 20:08 DFM 2-Fluorobiphenyl 48 1 50.0 97 % 10-149 1H23006 EPA 8270E 08126121 20:08 DFM 2-Fluorophenol 79 1 100 79 % 10-110 1H23006 EPA 8270E 08126121 20:08 DFM Nitrobenzene-d5 44 1 50.0 89 % 10-149 1H23006 EPA 8270E 08126121 20:08 DFM Phenol-d5 75 1 100 75 % 10-88 1H23006 EPA 8270E 08126121 20:08 DFM FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE09538-05 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 12:54 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Semivolatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Terphenyl-d14 33 1 50.0 67 % 10-166 IH23006 EPA 8270E 08126121 20:08 DFM Organochlorine Pesticides by GC ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed gy Notes 4,4'-DDD [72-54-8]^ 0.044 U ug/L 1 0.044 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK 4,4'-DDE[72-55-9]^ 0.048 U ug/L 1 0.048 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK 4,4'-DDT [50-29-3]^ 0.049 U ug/L 1 0.049 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Aldrin [309-00-2]^ 0.041 U ug/L 1 0.041 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK alpha-BHC [319-84-6]^ 0.036 U ug/L 1 0.036 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK beta-BHC [319-85-7]^ 0.041 U ug/L 1 0.041 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Chlordane (tech) [12789-03-6]^ 0.37 U ug/L 1 0.37 0.50 1H24025 EPA 8081B 09/03/21 13:33 LSK Chlordane -alpha [5103-71-9]^ 0.048 U ug/L 1 0.048 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Chlordane -gamma [5103-74-2]^ 0.042 U ug/L 1 0.042 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK delta-BHC [319-86-8]^ 0.048 U ug/L 1 0.048 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Dieldrin [60-57-1]^ 0.045 U ug/L 1 0.045 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Endosulfan I[959-98-8]^ 0.045 U ug/L 1 0.045 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Endosulfan II[33213-65-9]^ 0.038 U ug/L 1 0.038 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Endosulfan sulfate [1031-07-8]^ 0.032 U ug/L 1 0.032 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Endrin [72-20-8]^ 0.041 U ug/L 1 0.041 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Endrin aldehyde [7421-93-4]^ 0.049 U ug/L 1 0.049 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK gamma-BHC [58-89-9]^ 0.034 U ug/L 1 0.034 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Heptachlor[76-44-8]^ 0.047 U ug/L 1 0.047 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Heptachlor epoxide [1024-57-3]^ 0.037 U ug/L 1 0.037 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Methoxychlor[72-43-5]^ 0.048 U ug/L 1 0.048 0.050 1H24025 EPA 8081B 09/03/21 13:33 LSK Toxaphene[8001-35-2]^ 0.28 U ug/L 1 0.28 1.0 1H24025 EPA 8081B 09/03/21 13:33 LSK Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffy Notes 2,4,5,6-TCMX 1.2 1 1.00 119 % 10-139 1H24025 EPA 8081E 09103121 13:33 LSK Decachlorobiphenyl 0.89 1 1.00 89 % 10-122 1H24025 EPA 8081E 09103121 13:33 LSK Polychlorinated Biphenyls by GC ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes PCB-1016/1242 [12674-11-2/53469-21-9]^ 0.48 U ug/L 1 0.48 0.50 1H24026 EPA 8082A 09/03/21 13:33 LSK PCB-1221[11104-28-2]^ 0.43 U ug/L 1 0.43 0.50 1H24026 EPA 8082A 09/03/21 13:33 LSK PCB-1232[11141-16-5]^ 0.50 U ug/L 1 0.50 0.50 1H24026 EPA 8082A 09/03/21 13:33 LSK PCB-1248[12672-29-6]^ 0.45 U ug/L 1 0.45 0.50 1H24026 EPA 8082A 09/03/21 13:33 LSK PCB-1254[11097-69-1]^ 0.43 U ug/L 1 0.43 0.50 1H24026 EPA 8082A 09/03/21 13:33 LSK PCB-1260[11096-82-5]^ 0.47 U ug/L 1 0.47 0.50 1H24026 EPA 8082A 09/03/21 13:33 LSK Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 2,4,5,E-TCMX 0.93 1 1.00 93 % 10-126 1H24026 EPA 6062A 09103121 13:33 LSK Decachlorobiphenyl 0.67 1 1.00 67 % 10-129 1H24026 EPA 6062A 09103121 13:33 LSK FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE09538-05 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 12:54 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analvte 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 1H23022 EPA 7470A 08/30/21 08:02 RLF QL-02 Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analvte 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 1H21004 EPA 6020B 08/24/21 17:10 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Barium [7440-39-3]^ 200 ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Beryllium [7440-41-7]1 0.160 U ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 13:33 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 13:33 JDH Chromium [7440-47-3]^ 13.4 ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Cobalt[7440-48-4]^ 6.01 J ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Iron [7439-89-6]^ 2640 ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Manganese [7439-96-5]^ 25600 ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Nickel[7440-02-O]^ 4.53 J ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 17:10 RLF Tin[7440-31-5]^ 2.90 U ug/L 1 2.90 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Vanadium [7440-62-2]1 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 13:33 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analvte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 150000 D ug/L 5 11000 25000 1H24021 EPA 300.0 08/24/21 22:30 ZGW Cyanide (total)[57-12-5]^ 4.9 U ug/L 1 4.9 10 1H25013 EPA 9014 08/25/21 17:16 JAH Sulfate as SO4 [14808-79-8]^ 58000 D ug/L 5 14000 25000 1H24021 EPA 300.0 08/24/21 22:30 ZGW Sulfide[18496-25-8]^ 10 U ug/L 1 10 100 1H23019 iM 4500S2 D-2011 08/23/21 14:48 JOC Total Alkalinity as CaCO3 [471-34-1]^ 660000 D ug/L 10 140000 150000 1H24015 EPA 310.2 08/24/21 13:25 JAH Total Dissolved Solids^ 1200000 ug/L 1 50000 50000 1H23013 SM 2540C-2011 08/23/21 17:42 DMJ Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 60 ug/L 1 0.80 2.0 1H24020 EPA 8260D 08/24/21 12:20 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-c48 5.0 1 5.00 100 % 75-125 1H24020 EPA 8260D 08124121 12:20 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 of rJ% (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE09538-05 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 12:54 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Chlorinated Herbicides by GC A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 2,4,5-T [93-76-5]A 0.28 U ug/L 1 0.28 0.50 1H24011 EPA 8151A 08/25/21 18:06 FCV 2,4,5-TP (silvex) [93-72-1]A 0.44 U ug/L 1 0.44 0.50 1H24011 EPA 8151A 08/25/21 18:06 FCV 2,4-D [94-75-7]A 0.27 U ug/L 1 0.27 0.50 1H24011 EPA 8151A 08/25/21 18:06 FCV Dinoseb [88-85-7]A 0.32 U ug/L 1 0.32 0.50 1H24011 EPA 8151A 08/25/21 18:06 FCV Pentachlorophenol [87-86-5]A 0.19 U ug/L 1 0.19 0.50 1H24011 EPA 8151A 08/25/21 18:06 FCV Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 2,4-DCAA 1.4 1 2,00 69 % 37-134 1H24011 EPA 8151A 08125121 18:06 FCV FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 of 5% 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-Field Blank Lab Sample ID:CE09538-06 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 16:15 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analvte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 08:00 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 08:00 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 08:00 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 08:00 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 08:00 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Chlorobenzene[108-90-7]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Ethylbenzene[100-41-4]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Methylene chloride [75-09-2]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Styrene[100-42-5]^ 0.11 u ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 08:00 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 08:00 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 08:00 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 27 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-Field Blank Lab Sample ID:CE09538-06 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 16:15 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 08:00 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 08:00 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 08:00 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 67 1 60.0 111 % 53-136 IH23035 EPA 8260D 08124121 08:00 RKY Dlbromofluoromethane 70 1 60.0 117 % 67-129 1H23035 EPA 8260D 08124121 08:00 RKY Toluene-d8 61 1 60.0 101 % 59-134 1H23035 EPA 8260D 08124121 08:00 RKY Metals 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 Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 IH23022 EPA 7470A 08/30/21 08:03 RLF QL-02 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 1H21004 EPA 6020B 08/24/21 17:14 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Barium [7440-39-3]^ 1.10 U ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 13:37 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 13:37 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Manganese [7439-96-5]^ 1.50 U ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 17:14 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:37 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 13:37 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 1H2O020 EPA 8260D 08/20/21 14:02 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Analyzed ffy Notes 4.9 1 5.00 97 % 75-125 1 H2O020 EPA 8260D 08120121 14:02 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 28 of 57 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-Trip Blank Lab Sample ID:CE09538-07 Received: 08/18/21 08:30 Matrix: Water Sampled:08/16/21 11:18 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 07:05 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 07:05 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 07:05 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 07:05 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 07:05 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Chlorobenzene[108-90-7]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Ethylbenzene[100-41-4]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Styrene[100-42-5]^ 0.11 u ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 07:05 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 07:05 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 07:05 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 29 Of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-Trip Blank Lab Sample ID:CE09538-07 Received: 08/18/21 08:30 Matrix: Water Sampled:08/16/21 11:18 Work Order: CE09538 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 07:05 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 07:05 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 07:05 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 66 1 60.0 109 % 53-136 IH23035 EPA 8260D 08124121 07:05 RKY Dibromofluoromethane 68 1 60.0 114 % 67-129 1H23035 EPA 8260D 08124121 07:05 RKY Toluene-d8 60 1 60.0 100 % 59-134 1H23035 EPA 8260D 08124121 07:05 RKY Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS 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 1H2O020 EPA 8260D 08/20/21 11:03 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffy Notes Toluene-d8 4.8 1 5.00 97 % 75-125 1H2O020 EPA 8260D 08120121 11:03 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 30 OfrJ% (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CE09538-08 Received: 08/18/21 08:30 Matrix: Ground Water Sampled: 08/16/2109:01 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analvte 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 1H23022 EPA 7470A 08/30/21 08:05 RLF QL-02 Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analvte 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 1H21004 EPA 6020B 08/24/21 17:19 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Barium [7440-39-3]^ 34.0 ug/L 1 1.10 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Beryllium [7440-41-7]1 0.160 U ug/L 1 0.160 1.00 1H2O026 EPA 6010D 08/24/21 13:39 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H2O026 EPA 6010D 08/24/21 13:39 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Cobalt [7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Manganese [7439-96-S]^ 4.48 J ug/L 1 1.50 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 17:19 RLF Vanadium [7440-62-2]1 1.40 U ug/L 1 1.40 10.0 1H2O026 EPA 6010D 08/24/21 13:39 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O026 EPA 6010D 08/24/21 13:39 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]^ 17000 D ug/L 2 4400 10000 1H24021 EPA 300.0 08/24/21 22:48 ZGW Sulfate as SO4 [14808-79-8]^ 190000 D ug/L 5 14000 25000 1H24021 EPA 300.0 08/25/21 06:06 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 22000 ug/L 1 14000 15000 1H24015 EPA 310.2 08/24/21 13:26 JAH Total Dissolved Solids^ 400000 ug/L 1 50000 50000 1H23013 SM 2540C-2011 08/23/21 17:42 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 31 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CE09538-09 Received: 08/18/21 08:30 Matrix: Ground Water Sampled:08/17/21 11:37 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analvte 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 1H23022 EPA 7470A 08/30/21 08:07 RLF QL-02 Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analvte 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 1H21004 EPA 6020B 08/24/21 17:23 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Barium [7440-39-3]^ 35.2 ug/L 1 1.10 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Beryllium [7440-41-7]1 0.160 U ug/L 1 0.160 1.00 1H2O029 EPA 6010D 08/24/21 10:32 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H2O029 EPA 6010D 08/24/21 10:32 JDH Chromium [7440-47-3]^ 3.14 J ug/L 1 1.40 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Cobalt [7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Iron [7439-89-6]^ 353 ug/L 1 22.0 50.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Manganese [7439-96-5]^ 20.1 ug/L 1 1.50 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 17:23 RLF Vanadium [7440-62-2]1 1.40 U ug/L 1 1.40 10.0 1H2O029 EPA 6010D 08/24/21 10:32 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O029 EPA 6010D 08/24/21 10:32 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]^ 10000 D ug/L 2 4400 10000 1H24021 EPA 300.0 08/24/21 23:06 ZGW Sulfate as SO4 [14808-79-8]^ 11000 D ug/L 2 5800 10000 1H24021 EPA 300.0 08/24/21 23:06 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 30000 ug/L 1 14000 15000 1H24015 EPA 310.2 08/24/21 13:28 JAH Total Dissolved Solids^ 82000 ug/L 1 50000 50000 1H23013 SM 254OC-2011 08/23/21 17:42 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 32 of 57 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CE09538-10 Received: 08/18/21 08:30 Matrix: Ground Water Sampled: 08/16/2109:58 Work Order: CE09538 Project: GFL Env - High Point, LLC Sampled By:Travis Martinez 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 1H23022 EPA 7470A 08/30/21 08:09 RLF QL-02 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 1H21004 EPA 6020B 08/24/21 17:28 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Barium [7440-39-3]^ 480 ug/L 1 1.10 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Beryllium [7440-41-7]1 0.160 U ug/L 1 0.160 1.00 1H2O029 EPA 6010D 08/24/21 10:34 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 1H2O029 EPA 6010D 08/24/21 10:34 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Cobalt [7440-48-4]^ 1.40 u ug/L 1 1.40 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Copper[7440-50-8]^ 1.60 u ug/L 1 1.60 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Iron [7439-89-6]^ 39.9 J ug/L 1 22.0 50.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Manganese [7439-96-5]^ 14.0 ug/L 1 1.50 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Nickel[7440-02-0]^ 7.82 J ug/L 1 2.20 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Silver[7440-22-4]^ 2.28 J ug/L 1 1.90 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 17:28 RLF Vanadium [7440-62-2]^ 5.79 J ug/L 1 1.40 10.0 1H2O029 EPA 6010D 08/24/21 10:34 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H2O029 EPA 6010D 08/24/21 10:34 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]^ 38000 D ug/L 2 4400 10000 1H24021 EPA 300.0 08/24/21 23:23 ZGW Sulfate as SO4 [14808-79-8]^ 43000 D ug/L 2 5800 10000 1H24021 EPA 300.0 08/24/21 23:23 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 360000 D ug/L 5 70000 75000 1H24015 EPA 310.2 08/24/21 13:28 JAH Total Dissolved Solids^ 520000 ug/L 1 50000 50000 1H23013 SM 254OC-2011 08/23/21 17:42 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 33 of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23035 - EPA 5030E MS Blank (1H23035-BLKI) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 06:38 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 1,1-Dichloropropene 0.15 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2,4-Trichlorobenzene 0.14 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 1,3-Dichlorobenzene 0.15 U 1.0 ug/L 1,3-Dichloropropane 0.16 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2,2-Dichloropropane 0.28 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 3-Chloropropene 0.11 U 1.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acetonitrile 5.0 U 10 ug/L Acrolein 4.0 U 10 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 Chloroprene 0.64 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 Dichlorodifluoromethane 0.20 U 1.0 ug/L Ethyl Methacrylate 0.38 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Isobutyl alcohol 11 U 50 ug/L Methacrylonitrile 4.9 U 10 ug/L Methyl Methacrylate 0.51 U 1.0 ug/L Spike Source %REC Level Result %REC Limits RPD 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 34 Of 57 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23035 - EPA 50305 MS - Continued (� �Eo www.encolabs.com Blank (SH23035-BLK3) Continued Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 06:38 Analvte Result Flaq POL Units Methylene chloride 0.23 U 1.0 ug/L Naphthalene 0.11 U 1.0 ug/L Propionitrile 5.0 U 10 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 63 ug/L 60.0 105 53-136 Dibromofluoromethane 66 ug/L 60.0 113 67-129 Toluene-d8 60 ug/L 60.0 99 59-134 LCS (IH23035-BSI) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 04:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 25 1.0 ug/L 20.0 125 75-133 Benzene 20 1.0 ug/L 20.0 99 80-134 Chlorobenzene 19 1.0 ug/L 20.0 95 80-120 Toluene 19 1.0 ug/L 20.0 95 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 Matrix Spike (1H23035-MS1) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 05:16 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 28 1.0 ug/L 20.0 0.21 U 138 75-133 QM-07 Benzene 24 1.0 ug/L 20.0 3.6 100 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 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 103 74-120 Matrix Spike Dup (11-123035-MS131) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 05:43 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 27 1.0 ug/L 20.0 0.21 U 135 75-133 2 20 QM-07 Benzene 24 1.0 ug/L 20.0 3.6 104 80-134 3 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 4 16 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 5 17 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 0.7 22 Semivolatile Organic Compounds by GCMS - Quality Control Batch IH23006 - EPA 3510C MS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 35 of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Semivolatile Organic Compounds by GCMS - Quality Control Blank (1H23006-BLKi) Prepared: 08/23/2021 08:57 Analyzed: 08/26/2021 17:33 Analvte Result Flaq PQL Units 1,2,4,5-Tetrachlorobenzene 3.4 U 10 ug/L 1,3,5-Trinitrobenzene 3.0 U 10 ug/L 1,3-Dinitrobenzene 2.5 U 10 ug/L 1,4-Naphthoquinone 2.5 U 10 ug/L 1,4-Phenylenediamine 4.0 U 10 ug/L 1-Naphthylamine 2.2 U 10 ug/L 2,3,4,6-Tetrachlorophenol 2.4 U 10 ug/L 2,4,5-Trichlorophenol 2.5 U 10 ug/L 2,4,6-Trichlorophenol 2.6 U 10 ug/L 2,4-Dichlorophenol 2.6 U 10 ug/L 2,4-Di methyl phenol 2.3 U 10 ug/L 2,4-Dinitrophenol 2.6 U 10 ug/L 2,4-Dinitrotoluene 2.6 U 10 ug/L 2,6-Dichlorophenol 2.0 U 10 ug/L 2,6-Dinitrotoluene 2.5 U 10 ug/L 2-Acetylaminofluorene 3.1 U 10 ug/L 2-Chloronaphthalene 2.8 U 10 ug/L 2-Chlorophenol 2.2 U 10 ug/L 2-Methyl-4,6-dinitrophenol 3.3 U 10 ug/L 2- Methyl naphthalene 2.8 U 10 ug/L 2-Methylphenol 2.0 U 10 ug/L 2-Naphthylamine 3.0 U 10 ug/L 2-Nitroaniline 2.5 U 10 ug/L 2-Nitrophenol 1.1 U 10 ug/L 3 & 4-Methylphenol 2.1 U 10 ug/L 3,3'-Dichlorobenzidine 3.5 U 10 ug/L 3,3'-Dimethylbenzidine 2.2 U 10 ug/L 3-Methylcholanthrene 1.3 U 10 ug/L 3-Nitroaniline 2.6 U 10 ug/L 4-Aminobiphenyl 3.5 U 10 ug/L 4-Bromophenyl-phenylether 2.4 U 10 ug/L 4-Chloro-3-methylphenol 2.4 U 10 ug/L 4-Chloroaniline 2.0 U 10 ug/L 4-Chlorophenyl-phenylether 2.6 U 10 ug/L 4-Nitroaniline 3.2 U 10 ug/L 4-Nitrophenol 2.8 U 10 ug/L 5-Nitro-o-toluidine 3.2 U 10 ug/L 7,12-Di methyl benz(a)anth racene 1.4 U 10 ug/L a,a-Dimethylphenethylamine 3.5 U 10 ug/L Acenaphthene 2.7 U 10 ug/L Acenaphthylene 2.6 U 10 ug/L Acetophenone 2.0 U 10 ug/L Anthracene 2.4 U 10 ug/L Benzo(a)anthracene 2.4 U 10 ug/L Benzo(a)pyrene 2.2 U 10 ug/L Benzo(b)fluoranthene 2.8 U 10 ug/L Benzo(g,h,i)perylene 2.4 U 10 ug/L Benzo(k)fluoranthene 2.4 U 10 ug/L Benzyl alcohol 2.4 U 10 ug/L Bis(2-chloroethoxy)methane 2.4 U 10 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 36 Of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Semivolatile Organic Compounds by GCMS - Quality Control Batch IH23006 - EPA 3510C MS - Continued Blank (SH23006-BLKI) Continued Prepared: 08/23/2021 08:57 Analyzed: 08/26/2021 17:33 Analvte Result Flaq POL Units Bis(2-chloroethyl)ether 2.6 U 10 ug/L Bi s(2-ch I o ro isopropyl)ether 2.5 U 10 ug/L Bis(2-ethylhexyl)phthalate 1.9 U 5.0 ug/L Butyl benzylphtha late 3.8 U 10 ug/L Chlorobenzilate 2.4 U 10 ug/L Chrysene 2.2 U 10 ug/L Diallate 1.9 U 10 ug/L Dibenzo(a,h)anthracene 2.3 U 10 ug/L Dibenzofuran 2.6 U 10 ug/L Diethylphtha late 2.4 U 10 ug/L Dimethoate 2.3 U 10 ug/L Dimethylphthalate 2.5 U 10 ug/L Di-n-butylphthalate 2.8 U 10 ug/L Di-n-octylphthalate 3.1 U 10 ug/L Disulfoton 2.0 U 10 ug/L Ethyl methanesulfonate 2.2 U 10 ug/L Famphur 2.7 U 10 ug/L Fluoranthene 3.1 U 10 ug/L Fluorene 2.5 U 10 ug/L Hexachlorobenzene 2.3 U 10 ug/L Hexachlorobutadiene 2.8 U 10 ug/L Hexachlorocyclopentadiene 2.7 U 10 ug/L Hexachloroethane 2.6 U 10 ug/L Hexachloropropene 6.8 U 10 ug/L Indeno(1,2,3-cd)pyrene 2.2 U 10 ug/L Isodrin 1.5 U 10 ug/L Isophorone 2.5 U 10 ug/L Isosafrole 2.2 U 10 ug/L Kepone 7.2 U 20 ug/L Methapyrilene 4.8 U 10 ug/L Methyl Methanesulfonate 2.2 U 10 ug/L Methyl parathion 2.5 U 10 ug/L Nitrobenzene 2.5 U 10 ug/L N-Nitrosodiethylamine 2.1 U 10 ug/L N-Nitrosodimethylamine 1.9 U 10 ug/L N-Nitrosodi-n-butylamine 2.0 U 10 ug/L N-Nitroso-di-n-propylamine 2.3 U 10 ug/L N-nitrosodiphenylamine/Diphenylamine 2.5 U 10 ug/L N-Nitrosomethylethylamine 1.9 U 10 ug/L N-Nitrosopiperidine 2.1 U 10 ug/L N-Nitrosopyrrolidine 1.9 U 10 ug/L O,O,O-Triethylphosphorothicate 2.2 U 10 ug/L o-Toluidine 1.6 U 10 ug/L Parathion 1.7 U 10 ug/L p-Dimethylaminoazobenzene 2.6 U 10 ug/L Pentachlorobenzene 2.7 U 10 ug/L Pentachloronitrobenzene 1.9 U 10 ug/L Phenacetin 2.7 U 10 ug/L Phenanthrene 2.6 U 10 ug/L Spike Source %REC Level Result %REC Limits RPD 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 37 Of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Semivolatile Organic Compounds by GCMS - Quality Control Batch IH23006 - EPA 3510C MS - Continued Blank (SH23006-BLKI) Continued Prepared: 08/23/2021 08:57 Analyzed: 08/26/2021 17:33 Analvte Result Flaq POL Units Phenol 1.7 U 10 ug/L Phorate 2.1 U 10 ug/L Pronamide 1.7 U 10 ug/L Pyrene 3.5 U 10 ug/L Safrole 2.2 U 10 ug/L Thionazin 2.3 U 10 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 2,4,6-Tribromophenol 89 u91L 100 89 10-179 2-Fluorobiphenyl 39 u91L 50.0 77 10-149 2-Fluorophenol 68 u91L 100 68 10-110 Nitrobenzene-d5 37 u91L 50.0 74 10-149 Phenohd5 60 u91L 100 60 10-88 Terphenyl-d14 43 u91L 50.0 86 10-188 LCS (IH23006-BSI) Prepared: 08/23/2021 08:57 Analyzed: 08/26/2021 18:04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Chlorophenol 40 10 ug/L 50.0 81 40-109 4-Chloro-3-methylphenol 44 10 ug/L 50.0 88 58-121 4-Nitrophenol 33 10 ug/L 50.0 66 33-105 Acenaphthene 45 10 ug/L 50.0 90 39-125 N-Nitroso-di-n-propylamine 45 10 ug/L 50.0 89 48-126 Phenol 28 10 ug/L 50.0 55 19-78 Pyrene 46 10 ug/L 50.0 92 44-137 2,4,6-Tribromophenol 94 u91L 100 94 10-179 2-Fluorobiphenyl 41 u91L 50.0 81 10-149 2-Fluorophenol 64 u91L 100 64 10-110 Nitrobenzene-d5 44 u91L 50.0 88 10-149 Phenol-d5 56 u91L 100 56 10-88 Terphenyl-d14 47 u91L 50.0 94 10-188 Matrix Spike (SH23006-MSS) Prepared: 08/23/2021 08:57 Analyzed: 08/26/2021 18:35 Source: CE11203-01 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits RPD 2-Chlorophenol 40 10 ug/L 50.0 2.2 U 81 40-109 4-Chloro-3-methylphenol 45 10 ug/L 50.0 2.4 U 90 58-121 4-Nitrophenol 40 10 ug/L 50.0 2.8 U 80 33-105 Acenaphthene 47 10 ug/L 50.0 2.7 U 93 39-125 N-Nitroso-di-n-propylamine 45 10 ug/L 50.0 2.3 U 90 48-126 Phenol 29 10 ug/L 50.0 1.7 U 58 19-78 Pyrene 47 10 ug/L 50.0 3.5 U 93 44-137 2,4,6-Tribromophenol 99 u91L 100 99 10-179 2-Fluorobiphenyl 44 u91L 50.0 87 10-149 2-Fluorophenol 67 u91L 100 67 10-110 Nitrobenzene-d5 44 u91L 50.0 89 10-149 Phenol-d5 59 u91L 100 59 10-88 Terphenyl-d14 47 u91L 50.0 94 10-188 RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 38 of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Semivolatile Organic Compounds by GCMS - Quality Control Batch IH23006 - EPA 3510C MS - Continued Matrix Spike Dup (1H23006-MSD1) Prepared: 08/23/2021 08:57 Analyzed: 08/26/2021 19:06 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Chlorophenol 40 10 ug/L 50.0 2.2 U 79 40-109 2 22 4-Chloro-3-methylphenol 46 10 ug/L 50.0 2.4 U 92 58-121 2 22 4-Nitrophenol 36 10 ug/L 50.0 2.8 U 73 33-105 10 27 Acenaphthene 46 10 ug/L 50.0 2.7 U 92 39-125 0.9 25 N-Nitroso-di-n-propylamine 46 10 ug/L 50.0 2.3 U 92 48-126 2 23 Phenol 28 10 ug/L 50.0 1.7 U 56 19-78 3 18 Pyrene 44 10 ug/L 50.0 3.5 U 89 44-137 5 24 2,4,6-Tribromophenol 99 ug/L 100 99 10-179 2-Fluorobiphenyl 44 u91L 50.0 88 10-149 2-Fluorophenol 65 u91L 100 65 10-110 Nitrobenzene-d5 45 u91L 50.0 89 10-149 Phenol-d5 59 u91L 100 59 10-88 Terphenyhd14 45 u91L 50.0 91 10-188 Organochlorine Pesticides by GC - Quality Control Batch IH24025 - EPA 3510C Blank (1H24025-BLKi) Prepared: 08/24/2021 12:33 Analyzed: 09/03/2021 11:16 Analvte Result Flaq POL Units 4,4'-DDD 0.044 U 0.050 ug/L 4,4'-DDE 0.048 U 0.050 ug/L 4,4'-DDT 0.049 U 0.050 ug/L Aldrin 0.041 U 0.050 ug/L alpha-BHC 0.036 U 0.050 ug/L beta-BHC 0.041 U 0.050 ug/L Chlordane (tech) 0.37 U 0.50 ug/L Chlordane -alpha 0.048 U 0.050 ug/L Chlordane -gamma 0.042 U 0.050 ug/L delta-BHC 0.048 U 0.050 ug/L Dieldrin 0.045 U 0.050 ug/L Endosulfan I 0.045 U 0.050 ug/L Endosulfan II 0.038 U 0.050 ug/L Endosulfan sulfate 0.032 U 0.050 ug/L Endrin 0.041 U 0.050 ug/L Endrin aldehyde 0.049 U 0.050 ug/L gamma-BHC 0.034 U 0.050 ug/L Heptachlor 0.047 U 0.050 ug/L Heptachlor epoxide 0.037 U 0.050 ug/L Methoxychlor 0.048 U 0.050 ug/L Toxaphene 0.28 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 2,4,5,E-TCMX 0.68 u91L 1.00 68 10-139 Decachlorobiphenyl 0.76 u91L 1.00 76 10-122 LCS (1H24025-BS1) Prepared: 08/24/2021 12:33 Analyzed: 09/03/2021 11:29 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 39 Of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Organochlorine Pesticides by GC - Quality Control Batch IH24025 - EPA 3510C - Continued LCS (1H24025-BSI) Continued Prepared: 08/24/2021 12:33 Analyzed: 09/03/2021 11:29 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 4,4'-DDT 1.2 0.050 ug/L 1.00 116 37-139 Dieldrin 0.90 0.050 ug/L 1.00 90 46-132 Endrin 1.1 0.050 ug/L 1.00 109 43-133 2,4,5,E-TCMX 0.74 ug/L 1.00 74 10-139 Decachloroblphenyl 0.80 ug/L 1.00 60 10-122 Matrix Spike (1H24025-MS1) Prepared: 08/24/2021 12:33 Analyzed: 09/03/2021 11:42 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 4,4'-DDT 1.0 0.050 ug/L 1.00 0.049 U 101 37-139 Dieldrin 0.89 0.050 ug/L 1.00 0.045 U 89 46-132 Endrin 1.1 0.050 ug/L 1.00 0.041 U 108 43-133 2,4,5,E-TCMX 0.64 ug/L 1.00 64 10-139 Decachlorobiphenyl 0.58 U91L 1.00 58 10-122 Matrix Spike Dup (1H24025-MSD3) Prepared: 08/24/2021 12:33 Analyzed: 09/03/2021 11:55 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 4,4'-DDT 1.2 0.050 ug/L 1.00 0.049 U 118 37-139 16 26 Dieldrin 0.90 0.050 ug/L 1.00 0.045 U 90 46-132 1 27 Endrin 1.1 0.050 ug/L 1.00 0.041 U 110 43-133 2 26 2,4,5,E-TCMX 0.73 ug/L 1.00 73 10-139 Decachlorobiphenyl 0.59 U91L 1.00 59 10-122 Polychlorinated Biphenyls by GC - Quality Control Batch IH24026 - EPA 3510C Blank (1H24026-BLKI) Prepared: 08/24/2021 12:37 Analyzed: 09/03/2021 12:08 Analvte Result Flaq POL Units PCB-1016/1242 0.48 U 0.50 ug/L PCB-1221 0.43 U 0.50 ug/L PCB-1232 0.50 U 0.50 ug/L PCB-1248 0.45 U 0.50 ug/L PCB-1254 0.43 U 0.50 ug/L PCB-1260 0.47 U 0.50 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 2,4,5,E-TCMX 0.43 ug/L 1.00 43 10-128 Decachlorobiphenyl 0.42 ug/L 1.00 42 10-129 LCS (1H24026-BS1) Prepared: 08/24/2021 12:37 Analyzed: 09/03/2021 12:21 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits RPD PCB-1016/1242 5.1 0.50 ug/L 10.0 51 43-123 PCB-1260 4.8 0.50 ug/L 10.0 48 41-125 2,4,5,E-TCMX 0.44 ug/L 1.00 44 10-128 Decachlorobipheny/ 0.43 U91L 1.00 43 10-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. RPD Limit Notes Page 40 of 57 QUALITY CONTROL DATA Polychlorinated Biphenyls by GC - Quality Control Batch IH24026 - EPA 3510C - Continued (� �Eo www.encolabs.com Matrix Spike (1H24026-MS1) Prepared: 08/24/2021 12:37 Analyzed: 09/03/2021 12:34 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes PCB-1016/1242 6.3 0.50 ug/L 10.0 0.48 U 63 43-123 PCB-1260 6.1 0.50 ug/L 10.0 0.47 U 61 41-125 2,4,5,6-TCMX 0.47 u91L 1.00 47 10-128 Decachloroblphenyl 0.43 u91L 1.00 43 10-129 Matrix Spike Dup (1H24026-MSD1) Prepared: 08/24/2021 12:37 Analyzed: 09/03/2021 12:48 Source: CE11203-01 Analvte PCB-1016/1242 PCB-1260 Result Flaq POL 7.1 0.50 6.3 0.50 Spike Source %REC RPD Units Level Result %REC Limits RPD Limit Notes ug/L 10.0 0.48 U 71 43-123 12 23 ug/L 10.0 0.47 U 63 41-125 3 31 2,4,5,6-TCMX 0.47 u91L 1.00 47 10-128 Decachlorobiphenyl 0.49 u91L 1.00 49 10-129 Metals by EPA 6000/7000 Series Methods - Quality Control Batch IH23022 - EPA 245.1 Blank (1H23022-BLK1) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:35 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 (1H23022-BS1) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:37 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 6.09 0.200 ug/L 5.00 122 80-120 Matrix Spike (1H23022-MS1) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:38 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Mercury 5.89 0.200 ug/L 5.00 0.150 U 118 75-125 Matrix Spike Dup (1H23022-MSD1) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:40 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.95 0.200 ug/L 5.00 0.150 U 119 75-125 1 25 Post Spike (1H23022-PS1) Prepared: 08/23/2021 14:19 Analyzed: 08/30/2021 07:42 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.53 0.200 ug/L 5.00 -0.0504 111 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH20026 - EPA 3005A FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 41 Of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH2O026 - EPA 3005A - Continued Blank (1H2O026-BLKI) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:40 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 Tin 2.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (1H2O026-BS1) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 200 10.0 ug/L 200 100 80-120 Barium 211 10.0 ug/L 200 105 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 20.2 1.00 ug/L 20.0 101 80-120 Chromium 201 10.0 ug/L 200 101 80-120 Cobalt 206 10.0 ug/L 200 103 80-120 Copper 201 10.0 ug/L 200 100 80-120 Iron 1030 50.0 ug/L 1000 103 80-120 Lead 201 10.0 ug/L 200 101 80-120 Manganese 202 10.0 ug/L 200 101 80-120 Nickel 204 10.0 ug/L 200 102 80-120 Selenium 199 10.0 ug/L 200 100 80-120 Silver 202 10.0 ug/L 200 101 80-120 Tin 201 10.0 ug/L 200 101 80-120 Vanadium 200 10.0 ug/L 200 100 80-120 Zinc 213 10.0 ug/L 200 106 80-120 Matrix Spike (1H2O026-MS3) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:48 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 200 10.0 ug/L 200 7.60 U 100 75-125 Barium 1660 10.0 ug/L 200 1450 109 75-125 Beryllium 20.2 1.00 ug/L 20.0 0.160 U 101 75-125 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 87 75-125 Chromium 207 10.0 ug/L 200 6.45 100 75-125 Cobalt 207 10.0 ug/L 200 9.04 99 75-125 Copper 193 10.0 ug/L 200 1.60 U 97 75-125 Iron 40900 50.0 ug/L 1000 40100 85 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 42 of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH20026 - EPA 3005A - Continued Matrix Spike (1H2O026-MS3) Continued Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:48 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Lead 196 10.0 ug/L 200 3.10 U 98 75-125 Manganese 11700 10.0 ug/L 200 11500 134 75-125 QM-07 Nickel 201 10.0 ug/L 200 3.52 99 75-125 Selenium 152 10.0 ug/L 200 6.20 U 76 75-125 Silver 214 10.0 ug/L 200 1.90 U 107 75-125 Tin 192 10.0 ug/L 200 2.90 U 96 75-125 Vanadium 200 10.0 ug/L 200 1.40 U 100 75-125 Zinc 206 10.0 ug/L 200 4.66 101 75-125 Matrix Spike Dup (1H2O026-MSD3) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:51 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 193 10.0 ug/L 200 7.60 U 97 75-125 4 20 Barium 1630 10.0 ug/L 200 1450 93 75-125 2 20 Beryllium 19.7 1.00 ug/L 20.0 0.160 U 99 75-125 2 20 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 88 75-125 0.3 20 Chromium 204 10.0 ug/L 200 6.45 99 75-125 2 20 Cobalt 203 10.0 ug/L 200 9.04 97 75-125 2 20 Copper 188 10.0 ug/L 200 1.60 U 94 75-125 3 20 Iron 40200 50.0 ug/L 1000 40100 11 75-125 2 20 QM-07 Lead 192 10.0 ug/L 200 3.10 U 96 75-125 2 20 Manganese 11500 10.0 ug/L 200 11500 25 75-125 2 20 QM-07 Nickel 198 10.0 ug/L 200 3.52 97 75-125 2 20 Selenium 153 10.0 ug/L 200 6.20 U 76 75-125 0.5 20 Silver 211 10.0 ug/L 200 1.90 U 106 75-125 1 20 Tin 190 10.0 ug/L 200 2.90 U 95 75-125 0.8 20 Vanadium 195 10.0 ug/L 200 1.40 U 97 75-125 3 20 Zinc 203 10.0 ug/L 200 4.66 99 75-125 2 20 Post Spike (SH2O026-PS3) Prepared: 08/20/2021 16:08 Analyzed: 08/24/2021 11:54 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.193 0.0100 mg/L 0.200 -0.00985 97 80-120 Barium 1.63 0.0100 mg/L 0.200 1.45 94 80-120 Beryllium 0.0199 0.00100 mg/L 0.0200 -0.000240 100 80-120 Cadmium 0.0178 0.00100 mg/L 0.0200 -0.00164 89 80-120 Chromium 0.206 0.0100 mg/L 0.200 0.00645 100 80-120 Cobalt 0.207 0.0100 mg/L 0.200 0.00904 99 80-120 Copper 0.191 0.0100 mg/L 0.200 -0.0116 95 80-120 Iron 40.6 0.0500 mg/L 1.00 40.1 47 80-120 QM-08 Lead 0.199 0.0100 mg/L 0.200 0.000592 99 80-120 Manganese 11.5 0.0100 mg/L 0.200 11.5 NR 80-120 QM-08 Nickel 0.204 0.0100 mg/L 0.200 0.00352 100 80-120 Selenium 0.162 0.0100 mg/L 0.200 -0.0483 81 80-120 Silver 0.208 0.0100 mg/L 0.200 0.000990 103 80-120 Tin 0.191 0.0100 mg/L 0.200 -0.00297 95 80-120 Vanadium 0.197 0.0100 mg/L 0.200 -0.00232 99 80-120 Zinc 0.208 0.0100 mg/L 0.200 0.00466 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 43 of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH20029 - EPA 3005A Blank (1H2O029-BLK1) Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 09:55 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 Blank (1H2O029-BLK2) Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 09:58 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 (11-12O029-BS1) Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 10:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 194 10.0 ug/L 200 97 80-120 Barium 207 10.0 ug/L 200 103 80-120 Beryllium 19.8 1.00 ug/L 20.0 99 80-120 Cadmium 19.5 1.00 ug/L 20.0 98 80-120 Chromium 197 10.0 ug/L 200 99 80-120 Cobalt 201 10.0 ug/L 200 101 80-120 Copper 197 10.0 ug/L 200 99 80-120 Iron 1010 50.0 ug/L 1000 101 80-120 Lead 195 10.0 ug/L 200 97 80-120 Manganese 197 10.0 ug/L 200 99 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 44 Of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH20029 - EPA 3005A - Continued LCS (11-112O029-13SI) Continued Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 10:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 199 10.0 ug/L 200 99 80-120 Selenium 196 10.0 ug/L 200 98 80-120 Silver 198 10.0 ug/L 200 99 80-120 Vanadium 197 10.0 ug/L 200 98 80-120 Zinc 205 10.0 ug/L 200 103 80-120 Matrix Spike (1H2O029-MS3) Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 10:09 Source: CE11084-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 192 10.0 ug/L 200 7.60 U 96 75-125 Barium 256 10.0 ug/L 200 59.0 98 75-125 Beryllium 19.3 1.00 ug/L 20.0 0.160 U 96 75-125 Cadmium 18.3 1.00 ug/L 20.0 0.360 U 92 75-125 Chromium 191 10.0 ug/L 200 1.40 U 95 75-125 Cobalt 193 10.0 ug/L 200 1.40 U 97 75-125 Copper 188 10.0 ug/L 200 1.60 U 94 75-125 Iron 2770 50.0 ug/L 1000 1980 79 75-125 Lead 190 10.0 ug/L 200 3.10 U 95 75-125 Manganese 647 10.0 ug/L 200 470 89 75-125 Nickel 193 10.0 ug/L 200 2.20 U 97 75-125 Selenium 181 10.0 ug/L 200 6.20 U 90 75-125 Silver 194 10.0 ug/L 200 1.90 U 97 75-125 Vanadium 190 10.0 ug/L 200 1.40 U 95 75-125 Zinc 369 10.0 ug/L 200 190 90 75-125 Matrix Spike (1H2O029-MS2) Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 10:29 Source: CE11084-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 191 10.0 ug/L 200 7.60 U 96 75-125 Barium 261 10.0 ug/L 200 61.2 100 75-125 Beryllium 19.6 1.00 ug/L 20.0 0.160 U 98 75-125 Cadmium 18.8 1.00 ug/L 20.0 0.360 U 94 75-125 Chromium 195 10.0 ug/L 200 1.40 U 98 75-125 Cobalt 198 10.0 ug/L 200 1.40 U 99 75-125 Copper 190 10.0 ug/L 200 1.60 U 95 75-125 Iron 3570 50.0 ug/L 1000 2790 78 75-125 Lead 196 10.0 ug/L 200 3.10 U 98 75-125 Manganese 669 10.0 ug/L 200 502 84 75-125 Nickel 199 10.0 ug/L 200 2.20 U 99 75-125 Selenium 186 10.0 ug/L 200 6.20 U 93 75-125 Silver 198 10.0 ug/L 200 1.90 U 99 75-125 Vanadium 193 10.0 ug/L 200 1.40 U 96 75-125 Zinc 409 10.0 ug/L 200 235 87 75-125 Matrix Spike Dup (1H2O029-MSD3) Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 10:11 Source: CE11084-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 186 10.0 ug/L 200 7.60 U 93 75-125 3 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 45 of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1H20029 - EPA 3005A - Continued Matrix Spike Dup (1H2O029-MSD3) Continued Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 10:11 Source: CE11084-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Barium 254 10.0 ug/L 200 59.0 98 75-125 0.6 20 Beryllium 19.1 1.00 ug/L 20.0 0.160 U 95 75-125 1 20 Cadmium 18.4 1.00 ug/L 20.0 0.360 U 92 75-125 0.2 20 Chromium 190 10.0 ug/L 200 1.40 U 95 75-125 0.1 20 Cobalt 193 10.0 ug/L 200 1.40 U 97 75-125 0.07 20 Copper 187 10.0 ug/L 200 1.60 U 93 75-125 0.7 20 Iron 2700 50.0 ug/L 1000 1980 72 75-125 3 20 QM-07 Lead 188 10.0 ug/L 200 3.10 U 94 75-125 1 20 Manganese 633 10.0 ug/L 200 470 82 75-125 2 20 Nickel 189 10.0 ug/L 200 2.20 U 94 75-125 2 20 Selenium 184 10.0 ug/L 200 6.20 U 92 75-125 2 20 Silver 191 10.0 ug/L 200 1.90 U 96 75-125 2 20 Vanadium 188 10.0 ug/L 200 1.40 U 94 75-125 0.7 20 Zinc 361 10.0 ug/L 200 190 86 75-125 2 20 Post Spike (iH2O029-PSI) Prepared: 08/20/2021 16:23 Analyzed: 08/24/2021 10:21 Source: CE11084-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.186 0.0100 mg/L 0.200 -0.00460 93 80-120 Barium 0.260 0.0100 mg/L 0.200 0.0590 100 80-120 Beryllium 0.0196 0.00100 mg/L 0.0200 8.50E-6 98 80-120 Cadmium 0.0187 0.00100 mg/L 0.0200 -0.000462 94 80-120 Chromium 0.196 0.0100 mg/L 0.200 0.000555 98 80-120 Cobalt 0.196 0.0100 mg/L 0.200 -0.000229 98 80-120 Copper 0.191 0.0100 mg/L 0.200 -0.00380 96 80-120 Iron 2.82 0.0500 mg/L 1.00 1.98 84 80-120 Lead 0.191 0.0100 mg/L 0.200 -0.000700 96 80-120 Manganese 0.661 0.0100 mg/L 0.200 0.470 95 80-120 Nickel 0.194 0.0100 mg/L 0.200 -6.70E-5 97 80-120 Selenium 0.182 0.0100 mg/L 0.200 -0.00711 91 80-120 Silver 0.195 0.0100 mg/L 0.200 0.000109 98 80-120 Vanadium 0.192 0.0100 mg/L 0.200 -0.00172 96 80-120 Zinc 0.376 0.0100 mg/L 0.200 0.190 93 80-120 Batch IH21004 - EPA 3005A Blank (1H23004-BLKI) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:45 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 (1H21004-BS1) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.4 1.00 ug/L 20.0 102 80-120 Thallium 21.5 1.00 ug/L 20.0 108 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 46 of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH21004 - EPA 3005A - Continued Matrix Spike (1H23004-MS1) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:54 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.8 2.00 ug/L 40.0 0.740 U 102 75-125 Thallium 37.0 2.00 ug/L 40.0 0.220 U 93 75-125 Matrix Spike Dup (1H23004-MSD3) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:59 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.0 2.00 ug/L 40.0 0.740 U 100 75-125 2 20 Thallium 37.0 2.00 ug/L 40.0 0.220 U 93 75-125 0.06 20 Post Spike (1H21004-PS3) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 16:03 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.9 1.00 ug/L 20.0 0.115 114 75-125 Thallium 21.2 1.00 ug/L 20.0 0.00630 106 75-125 Classical Chemistry Parameters - Quality Control Batch IH23013 - NO PREP Blank (1H23013-BLKi) Prepared & Analyzed: 08/23/2021 17:42 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 (1H23013-BSI) Prepared & Analyzed: 08/23/2021 17:42 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 960 50 mg/L 1000 96 80-120 Duplicate (1H23013-DUPl) Prepared & Analyzed: 08/23/2021 17:42 Source: CE09536-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 370000 50000 ug/L 350000 7 20 Duplicate (1H23013-DUP2) Prepared & Analyzed: 08/23/2021 17:42 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 1800000 100000 ug/L 1900000 7 20 Batch IH23019 - NO PREP Blank (1H23019-BLKi) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 14:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 10 U 100 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 47 Of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 1H23019 - NO PREP - Continued LCS (1H23019-BSI) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 14:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 0.33 0.10 mg/L 0.401 83 80-120 Duplicate (1H23019-DUP3) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 14:48 Source: CE09538-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 10 U 100 ug/L 10 U 25 Matrix Spike (1H23019-MS3) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 14:48 Source: CE09538-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 260 100 ug/L 401 10 U 64 80-120 QM-07 Matrix Spike Dup (1H23019-MSD3) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 14:48 Source: CE09538-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfide 260 100 ug/L 401 10 U 64 80-120 0.6 25 QM-07 Batch IH24015 - NO PREP Blank (1H24015-BLK1) Prepared: 08/24/2021 10:04 Analyzed: 08/24/2021 13:12 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 (1H24015-BSI) Prepared: 08/24/2021 10:04 Analyzed: 08/24/2021 13:12 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 98 15 mg/L 100 98 80-120 Matrix Spike (1H24015-MS1) Prepared: 08/24/2021 10:04 Analyzed: 08/24/2021 13:14 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1800000 150000 ug/L 400000 1500000 73 80-120 QM-07 Matrix Spike Dup (1H24015-MSD3) Prepared: 08/24/2021 10:04 Analyzed: 08/24/2021 13:14 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1800000 150000 ug/L 400000 1500000 74 80-120 0.2 25 QM-07 Batch IH24021 - NO PREP Blank (1H24021-BLKI) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 17:48 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 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 48 Of 57 QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 1H24021 - NO PREP - Continued (� �Eo www.encolabs.com LCS (1H24021-BSI) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 18:05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 51000 5000 ug/L 50000 102 90-110 Sulfate as SO4 51000 5000 ug/L 50000 102 90-110 Matrix Spike (1H24021-MS1) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 18:58 Source: CE09536-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 180000 25000 ug/L 100000 100000 82 90-110 QM-07 Sulfate as SO4 120000 25000 ug/L 100000 40000 79 90-110 QM-07 Matrix Spike (1H24021-MS2) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 19:34 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 590000 120000 ug/L 500000 200000 77 90-110 QM-07 Sulfate as SO4 400000 120000 ug/L 500000 72000 U 79 90-110 QM-07 Matrix Spike Dup (1H24021-MSD1) Prepared: 08/24/2021 10:27 Analyzed: 08/24/2021 19:16 Source: CE09536-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 190000 25000 ug/L 100000 100000 87 90-110 3 10 QM-07 Sulfate as SO4 260000 25000 ug/L 100000 40000 223 90-110 76 10 QM-07, QM-11 Batch IH25013 - Same Blank (1H25013-BLK1) Prepared: 08/25/2021 10:20 Analyzed: 08/25/2021 17:08 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 4.9 U 10 ug/L LCS (1H25013-BS1) Prepared: 08/25/2021 10:20 Analyzed: 08/25/2021 17:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 150 10 ug/L 150 97 85-115 Matrix Spike (1H25013-MS3) Prepared: 08/25/2021 10:20 Analyzed: 08/25/2021 17:13 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 110 10 ug/L 150 4.9 U 76 85-115 QM-07 Matrix Spike Dup (1H25013-MSD3) Prepared: 08/25/2021 10:20 Analyzed: 08/25/2021 17:15 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Cyanide (total) 110 10 ug/L 150 4.9 U 75 85-115 0.9 20 QM-07 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IH20020 - EPA 50300 MS FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 49 OfrJ% 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IH2O020 - EPA 5030E MS - Continued Blank (1H2O020-BLKI) Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 10:38 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-& 4.7 u91L 5.00 94 75-125 LCS (IH2O020-BS1) Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 09:47 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 28 2.0 ug/L 25.0 114 80-133 Toluene-& 5.0 u91L 5.00 99 75-125 Matrix Spike (1H2O020-MS1) Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 15:18 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 120 2.0 ug/L 25.0 85 141 80-133 QM-07 Toluene-& 5.1 u91L 5,00 101 75-125 Matrix Spike Dup (1H2O020-MSD1) Prepared: 08/20/2021 00:00 Analyzed: 08/20/2021 15:43 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 130 2.0 ug/L 25.0 85 163 80-133 4 19 QM-07 Toluene-d8 4.9 u91L 5.00 98 75-125 Batch IH24020 - EPA 50308 MS Blank (1H24020-BLK3) Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 10:02 Spike Source %REC RPD Analvte Result Flaa POL Uni Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 5.0 u91L 5.00 100 75-125 LCS (11-124020-BS1) Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 09:11 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 109 80-133 Toluene-d8 4.8 u91L 5,00 96 75-125 Matrix Spike (IH24020-MSS) Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 13:37 Source: AE06823-01 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 29 2.0 ug/L 25.0 0.80 U 117 80-133 Toluene-d6 5.5 u9/L 5.00 111 75-125 Matrix Spike Dup (1H24020-MSD1) Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 14:02 Source: AE06823-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 30 2.0 ug/L 25.0 0.80 U 119 80-133 2 19 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 50 Of 57 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IH24020 - EPA 5030E MS - Continued Matrix Spike Dup (1H24020-MSD3) Continued Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 14:02 Source: AE06823-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 4.8 u91L 5.00 95 75-125 Chlorinated Herbicides by GC - Quality Control Batch IH24011 - EPA 3510C Blank (1H24011-BLKI) Prepared: 08/24/2021 08:15 Analyzed: 08/25/2021 15:36 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2,4,5-T 0.28 U 0.50 ug/L 2,4,5-TP (Silvex) 0.44 U 0.50 ug/L 2,4-D 0.27 U 0.50 ug/L Dinoseb 0.32 U 0.50 ug/L Pentachlorophenol 0.19 U 0.50 ug/L 2,4-DC,4A [2C] 1.4 u91L 2.00 71 37-134 Blank (1H24031-BLK2) Prepared: 08/24/2021 08:15 Analyzed: 08/25/2021 16:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2,4,5-T 1.4 U 2.5 ug/L 2,4,5-TP (Silvex) 2.2 U 2.5 ug/L 2,4-D 1.4 U 2.5 ug/L Dinoseb 1.6 U 2.5 ug/L Pentachlorophenol 0.95 U 2.5 ug/L 2,4-DC,4A [2C] 7.2 u91L 10.0 72 37-134 LCS (1H24011-BSI) Prepared: 08/24/2021 08:15 Analyzed: 08/25/2021 16:25 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes 2,4,5-TP (Silvex) 1.5 0.50 ug/L 2.00 77 24-135 2,4-D 1.9 0.50 ug/L 2.00 96 20-134 2, 4-DCAA [2C] 1.5 u91L 2.00 77 37-134 Matrix Spike (1H24011-MS3) Prepared: 08/24/2021 08:15 Analyzed: 08/25/2021 16:51 Source: AE06741-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2,4,5-TP (Silvex) 7.6 2.5 ug/L 10.0 2.2 U 76 24-135 2,4-D 6.6 2.5 ug/L 10.0 1.4 U 66 20-134 2, 4-DCAA [2C] 9.8 u91L 10.0 98 37-134 Matrix Spike Dup (SH24011-MSD3) Prepared: 08/24/2021 08:15 Analyzed: 08/25/2021 17:16 Source: AE06741-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2,4,5-TP (Silvex) 8.3 2.5 ug/L 10.0 2.2 U 83 24-135 9 19 2,4-D 8.0 2.5 ug/L 10.0 1.4 U 80 20-134 19 19 2,4-DG4A[2C] 10 u91L 10.0 105 37-134 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) 1 Of 57 (� �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. 3-05 Result may be biased low. Associated calibration verification standard did not meet the minimum control limit. QL-02 The associated laboratory control sample exhibited high bias; since the result is ND, there is no impact. 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). QM-11 Precision between duplicate matrix spikes of the same sample was outside acceptance limits. 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 52 of 57 I e7 n p n ID rl 1 —nMa is r a Y I j i ra zm - 0 0 z I i r r ai r I R rm n I ! { g c M .a,5818 Appe, 4MO A;Vtdg 1 ilk to w.. W= Me 1,,. � .gyp � "'_s,� � ..€ ! � d � � € `� � ks�A„1�...xY,Y'j=i.ai7 � r _ •..i� m vaJ �— - co In CIO cl cpto ci z Paae 53 of 57 x E II II� W � - i PJ cu g y i a m S,.!fate ',. w ! c Zi rl LA �i t a � A e _ I EL - C3 Page 54 of 57 a MUM mz P z m J M ukate 300 z Ai—L ij, 0 M it ry� 40 E r� r 'I u • Cl Page 56 of 57 Sample Preservation Verification ENCO Cary Work Order: CE09538 Client: Golder Associates, Inc. (GO007) gC=o,O Project: GFL Env - High Point, LLC Project #: 2013788121,102 Logged In: 18-Aug-21 11:41 Logged By: Rachel Ann Y nish I { Preservation Check Performed By: _ Date/Time: _11� S CE09538-01 Cont Type Pres (pH) pH Checked / Requirement In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments 6 250mLP+HNO3 <2 Y / N / NA Y 1 N 1 NA ���� N vt }3 C 25OmLP+HNO3 <2 Y I N I NA Y N/ NA CE09538-02 Cont Type yp Pres (pH) Requirement pH Checked 1 In Control Date/Time pH l Adjusted Adjusted Reagent UsedlCorments B 250mLP+HNO3 <2 Y .V N / NA Y !(N NA CE09538-03 Cont T e yp Pres (pH) Requirement PH Checked J In Control Datemme pH Adjusted Adlusted Reagent Used/Comments B 250mLP+HNO3 <2 Y)/ N 1 NA Y I(N / NA CE09538-04 Cont Yp Type Pres (pH) Requirement pH Checked / In Control Date/Time PH AdjustedDate/TimeReagent Used/Comments B 250mLP+HNO3 <2 Y 1 N / NA Y / N / NA � l zj �L�� �- m CE09538-05 Cont Yp Type Pres (pH) pH Checked 1 Requirement In Control Date�me pH Adjusted Adjusted Reagent Used/Comments E 254mLA (PEST) Pest pH 5-9LNI Y/ iN ` l NA G 25OmLP+HNO3 <2 Y I N NA H 25OmLP+NaOH >12 Y I N/ NA 250mLP+ZnAc+NaOH >9 Y I I NA CE09538-06 Cont T e Yp Pres (pH) Requirement pH Checked / In Control DateMme AR Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y I N/ NA Y) N 1 NA Rea-cient Name ID 1 2 Rea ent Name ID 3 4 Reapient Name ID 5 6 pH Strip ID: PH Strips COF0555 Page 57 of 57 C:lefmntlPrir .-,..,,o-� , =vrvatton�;neck. rpt , WORK ORDER Printed: 8/19/2021 8:35:37AM CE09538 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Amanda L. Gaines Project: GFL Env - High Point, LLC Project Number: 2013788121.102 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: Rachel Ann Yonish Date Received: 18-Aug-21 08:30 Logged In By: Rachel Ann Yonish Date Logged In: 18-Aug-21 11:41 Work Order Comments: C-202 received at 1.0°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 N Containers Properly Preserved N Proper Containers Received N All Samples in PreLog Received N COC/Labels Agree N Custody Seals Intact N Volatile Containers Preserved N Volatile Containers Headspace Free N Aqueous Samples Checked for Residual Cl N Received On Ice N Temoeratme Corrected N 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 Monday, October 4, 2021 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 2013788121.102, Project Name/Desc: GFL Env - High Point LF, LLC Resample ENCO Workorder(s): CE10412 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, August 20, 2021. 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, Amanda L. Gaines 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 26 PROJECT NARRATIVE Date: October 4, 2021 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Resample Lab ID: CE10412 Overview (� �Eo www.encolabs.com This report is an amendment to the original report dated August 31, 2021 for this work order. This report was revised to remove an erroneously reported value in the QC Blank. 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 8260D LCS exhibited a high bias for 2-Butanone, Acetone, Bromoform, and trans-1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1-Trichloroethane, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, Acetone, Bromodichloromethane, Bromomethane, and trans-1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The spike recovery for 1, 1 -Dichloroethene was outside control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for 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. Amanda Gaines 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 26 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: SW-5 Lab ID: CE10412-01 Sampled: 08/19/21 08:45 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/15/22 08/25/21 08:55 08/27/21 09:55 EPA 6020E EPA 3005A 02/15/22 08/21/21 08:37 08/24/21 17:32 EPA 8260D EPA 503013_MS 09/02/21 08/23/21 19:04 08/24/21 12:07 EPA 8260D EPA 503013_MS 09/02/21 08/24/21 09:02 08/24/21 14:53 Client ID: SW-6 Lab ID: CE10412-02 Sampled: 08/19/21 08:31 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/15/22 08/25/21 08:55 08/27/21 09:57 EPA 6020E EPA 3005A 02/15/22 08/21/21 08:37 08/25/21 17:34 EPA 8260D EPA 503013_MS 09/02/21 08/23/21 19:04 08/24/21 12:34 EPA 8260D EPA 503013_MS 09/02/21 08/24/21 09:02 08/24/21 15:19 Client ID: SW-1 Lab ID: CE10412-03 Sampled: 08/18/21 11:29 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/14/22 08/25/21 08:55 08/27/21 10:00 EPA 6020B EPA 3005A 02/14/22 08/21/21 08:37 08/25/21 17:39 EPA 8260D EPA 503013_MS 09/01/21 08/23/21 19:04 08/24/21 13:01 EPA 8260D EPA 5030B_MS 09/02/21 08/24/21 09:02 08/24/21 15:44 Client ID: SW-2 Lab ID: CE10412-04 Sampled: 08/18/21 11:01 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/14/22 08/25/21 08:55 08/27/21 10:10 EPA 6020B EPA 3005A 02/14/22 08/21/21 08:37 08/25/21 17:43 EPA 8260D EPA 503013_MS 09/01/21 08/23/21 14:00 08/23/21 21:58 EPA 8260D EPA 503013_MS 09/02/21 08/24/21 09:02 08/24/21 16:10 Client ID: SW-3 Lab ID: CE10412-05 Sampled: 08/18/21 11:12 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/14/22 08/25/21 08:55 08/27/21 10:13 EPA 6020B EPA 3005A 02/14/22 08/21/21 08:37 08/25/21 17:47 EPA 8260D EPA 5030B_MIS 09/01/21 08/23/21 14:00 08/23/21 22:25 EPA 8260D EPA 503013_MS 09/02/21 08/24/21 09:02 08/24/21 16:36 Client ID: SW-4 Lab ID: CE10412-06 Sampled: 08/19/21 09:08 Received: 08/20/21 14:20 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/15/22 08/25/21 08:55 08/27/21 10:15 EPA 6020E EPA 3005A 02/15/22 08/21/21 08:37 08/25/21 17:51 EPA 8260D EPA 503013_MS 09/02/21 08/23/21 19:04 08/24/21 13:29 EPA 8260D EPA 503013_MS 09/02/21 08/24/21 09:02 08/24/21 17:02 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 26 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: SW-5 Lab ID: CE10412-01 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 19 0.80 2.0 ug/L EPA 8260D Barium - Total 294 1.10 10.0 ug/L EPA 6010D Chromium - Total 3.44 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 7.33 J 1.40 10.0 ug/L EPA 6010D Nickel - Total 5.05 J 2.20 10.0 ug/L EPA 6010D Client ID: SW-6 Lab ID: CE10412-02 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 6.6 0.80 2.0 ug/L EPA 8260D Barium - Total 76.4 1.10 10.0 ug/L EPA 6010D Chromium - Total 1.43 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 1.49 J 1.40 10.0 ug/L EPA 6010D Copper - Total 1.97 J 1.60 10.0 ug/L EPA 6010D Vanadium - Total 2.91 J 1.40 10.0 ug/L EPA 6010D Client ID: SW-1 Lab ID: CE10412-03 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 1.9 J 0.80 2.0 ug/L EPA 8260D Antimony - Total 0.892 J 0.740 2.00 ug/L EPA 6020E Barium - Total 47.6 1.10 10.0 ug/L EPA 6010D Copper - Total 2.16 J 1.60 10.0 ug/L EPA 6010D Vanadium - Total 2.51 J 1.40 10.0 ug/L EPA 6010D Client ID: SW-2 Lab ID: CE10412-04 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 5.1 0.80 2.0 ug/L EPA 8260D Barium - Total 52.3 1.10 10.0 ug/L EPA 6010D Zinc - Total 5.28 J 4.40 10.0 ug/L EPA 6010D Client ID: SW-3 Lab ID: CE10412-05 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 5.0 0.80 2.0 ug/L EPA 8260D Barium - Total 58.0 1.10 10.0 ug/L EPA 6010D Copper - Total 4.17 J 1.60 10.0 ug/L EPA 6010D Vanadium - Total 2.91 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 6.94 J 4.40 10.0 ug/L EPA 6010D Client ID: SW-4 Lab ID: CE10412-06 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 5.8 0.80 2.0 ug/L EPA 8260D Barium - Total 78.1 1.10 10.0 ug/L EPA 6010D Copper - Total 2.34 J 1.60 10.0 ug/L EPA 6010D Vanadium - Total 3.35 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 5.03 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 4 of 26 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: SW-5 Lab Sample ID:CE10412-01 Received: 08/20/21 14:20 Matrix: Surface Water Sampled: 08/19/2108:45 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 12:07 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 12:07 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 12:07 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 12:07 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 12:07 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Chlorobenzene[108-90-7]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Ethylbenzene[100-41-4]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Styrene[100-42-5]^ 0.11 u ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 12:07 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 12:07 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 12:07 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 of 26 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: SW-5 Lab Sample ID:CE10412-01 Received: 08/20/21 14:20 Matrix: Surface Water Sampled: 08/19/2108:45 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 12:07 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 12:07 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 12:07 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 64 1 60.0 106 % 53-136 IH23035 EPA 8260D 08124121 12:07 RKY Dibromofluoromethane 67 1 60.0 112 % 67-129 1H23035 EPA 8260D 08124121 12:07 RKY Toluene-d8 60 1 60.0 99 % 59-134 1H23035 EPA 8260D 08124121 12:07 RKY 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 1H21004 EPA 6020B 08/24/21 17:32 RLF Arsenic [7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Barium [7440-39-3]^ 294 ug/L 1 1.10 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H25009 EPA 6010D 08/27/21 09:55 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H25009 EPA 6010D 08/27/21 09:55 JDH Chromium [7440-47-3]^ 3.44 J ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Cobalt[7440-48-4]^ 7.33 J ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Nickel[7440-02-O]^ 5.05 J ug/L 1 2.20 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/24/21 17:32 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 09:55 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H25009 EPA 6010D 08/27/21 09:55 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]^ 19 ug/L 1 0.80 2.0 1H24020 EPA 8260D 08/24/21 14:53 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.8 1 5.00 96 % 75-125 1H24020 EPA 8260D 08124121 14:53 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 26 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: SW-6 Lab Sample ID:CE10412-02 Received: 08/20/21 14:20 Matrix: Surface Water Sampled: 08/19/2108:31 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 12:34 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 12:34 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 12:34 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 12:34 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 12:34 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Chlorobenzene[108-90-7]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Ethylbenzene[100-41-4]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Styrene[100-42-5]^ 0.11 u ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 12:34 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 12:34 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 12:34 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 of 26 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: SW-6 Lab Sample ID:CE10412-02 Received: 08/20/21 14:20 Matrix: Surface Water Sampled: 08/19/2108:31 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 12:34 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 12:34 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 12:34 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 66 1 60.0 109 % 53-136 IH23035 EPA 8260D 08124121 12:34 RKY Dibromofluoromethane 69 1 60.0 115 % 67-129 1H23035 EPA 8260D 08124121 12:34 RKY Toluene-d8 60 1 60.0 101 % 59-134 1H23035 EPA 8260D 08124121 12:34 RKY 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 1H21004 EPA 6020B 08/25/21 17:34 RLF Arsenic [7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Barium [7440-39-3]^ 76.4 ug/L 1 1.10 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H25009 EPA 6010D 08/27/21 09:57 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H25009 EPA 6010D 08/27/21 09:57 JDH Chromium [7440-47-3]^ 1.43 J ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Cobalt[7440-48-4]^ 1.49 J ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Copper[7440-50-8]^ 1.97 J ug/L 1 1.60 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/25/21 17:34 RLF Vanadium [7440-62-2]^ 2.91 J ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 09:57 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H25009 EPA 6010D 08/27/21 09:57 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 By Notes 1,4-Dioxane [123-91-1]^ 6.6 ug/L 1 0.80 2.0 1H24020 EPA 8260D 08/24/21 15:19 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed By Notes Toluene-d8 4.5 1 5.00 91 % 75-125 1H24020 EPA 8260D 08124121 15:19 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 26 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: SW-1 Lab Sample ID:CE10412-03 Received: 08/20/21 14:20 Matrix: Surface Water Sampled:08/18/21 11:29 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 13:01 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 13:01 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 13:01 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 13:01 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 13:01 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Chlorobenzene[108-90-7]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Ethylbenzene[100-41-4]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Styrene[100-42-5]^ 0.11 u ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 13:01 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 13:01 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 13:01 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 of 26 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: SW-1 Lab Sample ID:CE10412-03 Received: 08/20/21 14:20 Matrix: Surface Water Sampled:08/18/21 11:29 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 13:01 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 13:01 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 13:01 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 67 1 60.0 112 % 53-136 IH23035 EPA 8260D 08124121 13:01 RKY Dibromofluoromethane 69 1 60.0 114 % 67-129 1H23035 EPA 8260D 08124121 13:01 RKY Toluene-d8 61 1 60.0 102 % 59-134 1H23035 EPA 8260D 08124121 13:01 RKY 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]^ 0.892 J ug/L 2 0.740 2.00 1H21004 EPA 6020B 08/25/21 17:39 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Barium [7440-39-3]^ 47.6 ug/L 1 1.10 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H25009 EPA 6010D 08/27/21 10:00 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H25009 EPA 6010D 08/27/21 10:00 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Copper[7440-50-8]^ 2.16 J ug/L 1 1.60 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/25/21 17:39 RLF Vanadium [7440-62-2]^ 2.51 J ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:00 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1H25009 EPA 6010D 08/27/21 10:00 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]^ 1.9 J ug/L 1 0.80 2.0 1H24020 EPA 8260D 08/24/21 15:44 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.4 1 5.00 87 % 75-125 1H24020 EPA 8260D 08124121 15:44 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of 26 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: SW-2 Lab Sample ID:CE10412-04 Received: 08/20/21 14:20 Matrix: Surface Water Sampled:08/18/21 11:01 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY QV-01 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY QV-01 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 IH23032 EPA 8260D 08/23/21 21:58 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 IH23032 EPA 8260D 08/23/21 21:58 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 IH23032 EPA 8260D 08/23/21 21:58 RKY QL-02, QV-01 Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 11-123032 EPA 8260D 08/23/21 21:58 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY QV-01 Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY QL-02 Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY QV-01 Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 11-123032 EPA 8260D 08/23/21 21:58 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 11-123032 EPA 8260D 08/23/21 21:58 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 26 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: SW-2 Lab Sample ID:CE10412-04 Received: 08/20/21 14:20 Matrix: Surface Water Sampled:08/18/21 11:01 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23032 EPA 8260D 08/23/21 21:58 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23032 EPA 8260D 08/23/21 21:58 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 66 1 60.0 110 % 53-136 IH23032 EPA 8260D 08123121 21:58 RKY Dibromofluoromethane 74 1 60.0 123 % 67-129 1H23032 EPA 8260D 08123121 21:58 RKY Toluene-c48 62 1 60.0 103 % 59-134 1H23032 EPA 8260D 08123121 21:58 RKY 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 1H21004 EPA 6020B 08/25/21 17:43 RLF Arsenic[7440-38-2]^ 7.60 u ug/L 1 7.60 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Barium [7440-39-3]^ 52.3 ug/L 1 1.10 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Beryllium [7440-41-7]^ 0.160 u ug/L 1 0.160 1.00 1H25009 EPA 6010D 08/27/21 10:10 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 1H25009 EPA 6010D 08/27/21 10:10 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Cobalt[7440-48-4]^ 1.40 u ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Copper[7440-50-8]^ 1.60 u ug/L 1 1.60 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Nickel[7440-02-0]^ 2.20 u ug/L 1 2.20 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Selenium [7782-49-2]^ 6.20 u ug/L 1 6.20 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Silver[7440-22-4]^ 1.90 u ug/L 1 1.90 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Thallium [7440-28-0]^ 0.220 u ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/25/21 17:43 RLF Vanadium [7440-62-2]^ 1.40 u ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:10 JDH Zinc[7440-66-6]^ 5.28 J ug/L 1 4.40 10.0 1H25009 EPA 6010D 08/27/21 10:10 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]A 5.1 ug/L 1 0.80 2.0 1H24020 EPA 8260D 08/24/21 16:10 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.6 1 5.00 92 % 75-125 1H24020 EPA 8260D 08124121 16:10 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 of 26 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: SW-3 Lab Sample ID:CE10412-05 Received: 08/20/21 14:20 Matrix: Surface Water Sampled:08/18/21 11:12 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY QV-01 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,2-Dichloroethane [507-06-2]A 0.21 u ug/L 1 0.21 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY QV-01 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 IH23032 EPA 8260D 08/23/21 22:25 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 IH23032 EPA 8260D 08/23/21 22:25 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 IH23032 EPA 8260D 08/23/21 22:25 RKY QL-02, QV-01 Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 11-123032 EPA 8260D 08/23/21 22:25 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY QV-01 Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY QL-02 Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY QV-01 Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Ethylbenzene[500-41-4]A 0.13 u ug/L 1 0.13 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 11-123032 EPA 8260D 08/23/21 22:25 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 11-123032 EPA 8260D 08/23/21 22:25 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 26 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: SW-3 Lab Sample ID:CE10412-05 Received: 08/20/21 14:20 Matrix: Surface Water Sampled:08/18/21 11:12 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez 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 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23032 EPA 8260D 08/23/21 22:25 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23032 EPA 8260D 08/23/21 22:25 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 64 1 60.0 106 % 53-136 IH23032 EPA 8260D 08123121 22:25 RKY Dibromofluoromethane 71 1 60.0 118 % 67-129 1H23032 EPA 8260D 08123121 22:25 RKY Toluene-c48 60 1 60.0 101 % 59-134 1H23032 EPA 8260D 08123121 22:25 RKY 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 1H21004 EPA 6020B 08/25/21 17:47 RLF Arsenic[7440-38-2]^ 7.60 u ug/L 1 7.60 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Barium [7440-39-3]^ 58.0 ug/L 1 1.10 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Beryllium [7440-41-7]^ 0.160 u ug/L 1 0.160 1.00 1H25009 EPA 6010D 08/27/21 10:13 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 1H25009 EPA 6010D 08/27/21 10:13 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Cobalt[7440-48-4]^ 1.40 u ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Copper[7440-50-8]A 4.17 J ug/L 1 1.60 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Nickel[7440-02-0]^ 2.20 u ug/L 1 2.20 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Selenium [7782-49-2]^ 6.20 u ug/L 1 6.20 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Silver[7440-22-4]^ 1.90 u ug/L 1 1.90 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Thallium [7440-28-0]^ 0.220 u ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/25/21 17:47 RLF Vanadium [7440-62-2]^ 2.91 J ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:13 JDH Zinc[7440-66-6]^ 6.94 J ug/L 1 4.40 10.0 1H25009 EPA 6010D 08/27/21 10:13 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]A 5.0 ug/L 1 0.80 2.0 1H24020 EPA 8260D 08/24/21 16:36 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.9 1 5.00 98 % 75-125 1H24020 EPA 8260D 08124121 1626 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 26 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: SW-4 Lab Sample ID:CE10412-06 Received: 08/20/21 14:20 Matrix: Surface Water Sampled: 08/19/2109:08 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY QV-01 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY QV-01 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IH23035 EPA 8260D 08/24/21 13:29 RKY QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IH23035 EPA 8260D 08/24/21 13:29 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IH23035 EPA 8260D 08/24/21 13:29 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 IH23035 EPA 8260D 08/24/21 13:29 RKY QL-02, QV-01 Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 11-123035 EPA 8260D 08/24/21 13:29 RKY Benzene[71-43-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Bromochloromethane [74-97-5]^ 0.48 u ug/L 1 0.48 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY QV-01 Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY QV-01 Carbon disulfide [75-15-0]^ 1.5 u ug/L 1 1.5 5.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Carbon tetrachloride [56-23-5]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Chlorobenzene[108-90-7]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Chloroethane [75-00-3]^ 0.23 u ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Chloromethane [74-87-3]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 u ug/L 1 0.20 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Dibromochloromethane [124-48-1]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Dibromomethane [74-95-3]^ 0.27 u ug/L 1 0.27 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Ethylbenzene[100-41-4]^ 0.13 u ug/L 1 0.13 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Styrene[100-42-5]^ 0.11 u ug/L 1 0.11 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Tetrachloroethene [127-18-4]^ 0.17 u ug/L 1 0.17 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 11-123035 EPA 8260D 08/24/21 13:29 RKY QL-02, QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1H23035 EPA 8260D 08/24/21 13:29 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1H23035 EPA 8260D 08/24/21 13:29 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 of 26 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: SW-4 Lab Sample ID:CE10412-06 Received: 08/20/21 14:20 Matrix: Surface Water Sampled: 08/19/2109:08 Work Order: CE10412 Project: GFL Env - High Point LF, LLC Resample Sampled By:Travis Martinez 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 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1H23035 EPA 8260D 08/24/21 13:29 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1H23035 EPA 8260D 08/24/21 13:29 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1H23035 EPA 8260D 08/24/21 13:29 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 64 1 60.0 106 % 53-136 IH23035 EPA 8260D 08124121 13:29 RKY Dibromofluoromethane 67 1 60.0 112 % 67-129 1H23035 EPA 8260D 08124121 13:29 RKY Toluene-d8 61 1 60.0 102 % 59-134 1H23035 EPA 8260D 08124121 13:29 RKY 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 1H21004 EPA 6020B 08/25/21 17:51 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Barium [7440-39-3]^ 78.1 ug/L 1 1.10 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1H25009 EPA 6010D 08/27/21 10:15 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1H25009 EPA 6010D 08/27/21 10:15 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Copper[7440-50-8]^ 2.34 J ug/L 1 1.60 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1H21004 EPA 6020B 08/25/21 17:51 RLF Vanadium [7440-62-2]^ 3.35 J ug/L 1 1.40 10.0 1H25009 EPA 6010D 08/27/21 10:15 JDH Zinc[7440-66-6]^ 5.03 J ug/L 1 4.40 10.0 1H25009 EPA 6010D 08/27/21 10:15 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]^ 5.8 ug/L 1 0.80 2.0 1H24020 EPA 8260D 08/24/21 17:02 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.8 1 5.00 96 % 75-125 1H24020 EPA 8260D 08124121 17:02 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 of 26 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23032 - EPA 5030E MS Blank (1111-123032-BLKI) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 17:23 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 65 ug/L 60.0 108 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 17 Of 26 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23032 - EPA 50305 MS - Continued (� �Eo www.encolabs.com Blank (IH23032-BLK3) Continued Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 17:23 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 70 u91L 60.0 116 67-129 Toluene-& 60 u91L 60.0 100 59-134 LCS (1H23032-BSI) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 15:31 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 24 1.0 ug/L 20.0 118 75-133 Benzene 19 1.0 ug/L 20.0 96 80-134 Chlorobenzene 20 1.0 ug/L 20.0 99 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 18 1.0 ug/L 20.0 89 74-120 Matrix Spike (1H23032-MS1) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 15:59 Source: CE12539-11 Spike Source %REC 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 123 75-133 Benzene 20 1.0 ug/L 20.0 0.15 U 102 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 104 71-120 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 101 74-120 Matrix Spike Dup (1H23032-MSD1) Prepared: 08/23/2021 14:00 Analyzed: 08/23/2021 16:27 Source: CE12539-11 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch IH23035 - EPA 50308 MS Result 24 20 19 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 122 102 94 99 98 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 0.7 0.2 8 6 3 RPD Limit Notes 20 17 16 17 22 Blank (1H23035-BLKI) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 06:38 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 18 Of 26 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23035 - EPA 50305 MS - Continued Blank (SH23035-BLK3) Continued Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 06:38 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 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 63 u91L 60.0 105 53-136 Dibromofluoromethane 68 u91L 60.0 113 67-129 Toluene-d8 60 u91L 60.0 99 59-134 LCS (1H23035-BS1) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 04:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 25 1.0 ug/L 20.0 125 75-133 Benzene 20 1.0 ug/L 20.0 99 80-134 Chlorobenzene 19 1.0 ug/L 20.0 95 80-120 Toluene 19 1.0 ug/L 20.0 95 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 of 26 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IH23035 - EPA 50305 MS - Continued (� �Eo www.encolabs.com Matrix Spike (1H23035-MS1) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 05:16 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 28 1.0 ug/L 20.0 0.21 U 138 75-133 QM-07 Benzene 24 1.0 ug/L 20.0 3.6 100 80-134 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 98 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 103 74-120 Matrix Spike Dup (1H23035-MSD1) Prepared: 08/23/2021 19:04 Analyzed: 08/24/2021 05:43 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 27 1.0 ug/L 20.0 0.21 U 135 75-133 2 20 QM-07 Benzene 24 1.0 ug/L 20.0 3.6 104 80-134 3 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 4 16 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 5 17 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 0.7 22 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH21004 - EPA 3005A Blank (1H21004-BLKI) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:45 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 (1H21004-BSI) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.4 1.00 ug/L 20.0 102 80-120 Thallium 21.5 1.00 ug/L 20.0 108 80-120 Matrix Spike (1H23004-MS3) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:54 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.8 2.00 ug/L 40.0 0.740 U 102 75-125 Thallium 37.0 2.00 ug/L 40.0 0.220 U 93 75-125 Matrix Spike Dup (1H21004-MSD1) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 15:59 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.0 2.00 ug/L 40.0 0.740 U 100 75-125 2 20 Thallium 37.0 2.00 ug/L 40.0 0.220 U 93 75-125 0.06 20 Post Spike (iH21004-PSI) Prepared: 08/21/2021 08:37 Analyzed: 08/24/2021 16:03 Source: CE09538-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 22.9 1.00 ug/L 20.0 0.115 114 75-125 Thallium 21.2 1.00 ug/L 20.0 0.00630 106 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 20 Of 26 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IH25009 - EPA 3005A Blank (1H25009-BLK1) Prepared: 08/25/2021 08:55 Analyzed: 08/27/2021 09:34 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 Lead 3.10 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 (IH25009-BSI) Prepared: 08/25/2021 08:55 Analyzed: 08/27/2021 09:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 197 10.0 ug/L 200 99 80-120 Barium 203 10.0 ug/L 200 102 80-120 Beryllium 19.3 1.00 ug/L 20.0 97 80-120 Cadmium 19.9 1.00 ug/L 20.0 99 80-120 Chromium 195 10.0 ug/L 200 97 80-120 Cobalt 201 10.0 ug/L 200 100 80-120 Copper 193 10.0 ug/L 200 97 80-120 Lead 197 10.0 ug/L 200 98 80-120 Nickel 197 10.0 ug/L 200 98 80-120 Selenium 198 10.0 ug/L 200 99 80-120 Silver 193 10.0 ug/L 200 97 80-120 Vanadium 192 10.0 ug/L 200 96 80-120 Zinc 203 10.0 ug/L 200 102 80-120 Matrix Spike (1H25009-MS1) Prepared: 08/25/2021 08:55 Analyzed: 08/27/2021 09:45 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 197 10.0 ug/L 200 7.60 U 98 75-125 Barium 230 10.0 ug/L 200 26.8 102 75-125 Beryllium 19.6 1.00 ug/L 20.0 0.160 U 98 75-125 Cadmium 19.8 1.00 ug/L 20.0 0.360 U 99 75-125 Chromium 198 10.0 ug/L 200 1.40 U 99 75-125 Cobalt 204 10.0 ug/L 200 3.38 100 75-125 Copper 199 10.0 ug/L 200 5.44 97 75-125 Lead 197 10.0 ug/L 200 3.10 U 98 75-125 Nickel 199 10.0 ug/L 200 3.21 98 75-125 Selenium 197 10.0 ug/L 200 6.20 U 99 75-125 Silver 194 10.0 ug/L 200 1.90 U 97 75-125 Vanadium 194 10.0 ug/L 200 1.40 U 97 75-125 Zinc 213 10.0 ug/L 200 10.2 102 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 26 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1H25009 - EPA 3005A - Continued Matrix Spike Dup (1H25009-MSD1) Prepared: 08/25/2021 08:55 Analyzed: 08/27/2021 09:47 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 198 10.0 ug/L 200 7.60 U 99 75-125 0.4 20 Barium 229 10.0 ug/L 200 26.8 101 75-125 0.6 20 Beryllium 19.2 1.00 ug/L 20.0 0.160 U 96 75-125 2 20 Cadmium 19.7 1.00 ug/L 20.0 0.360 U 99 75-125 0.5 20 Chromium 194 10.0 ug/L 200 1.40 U 97 75-125 2 20 Cobalt 202 10.0 ug/L 200 3.38 99 75-125 0.9 20 Copper 197 10.0 ug/L 200 5.44 96 75-125 1 20 Lead 195 10.0 ug/L 200 3.10 U 98 75-125 0.9 20 Nickel 202 10.0 ug/L 200 3.21 99 75-125 1 20 Selenium 201 10.0 ug/L 200 6.20 U 100 75-125 2 20 Silver 190 10.0 ug/L 200 1.90 U 95 75-125 2 20 Vanadium 191 10.0 ug/L 200 1.40 U 95 75-125 2 20 Zinc 213 10.0 ug/L 200 10.2 101 75-125 0.4 20 Post Spike (1H25009-PS1) Prepared: 08/25/2021 08:55 Analyzed: 08/27/2021 09:50 Source: CE11203-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.193 0.0100 mg/L 0.200 0.00445 94 80-120 Barium 0.234 0.0100 mg/L 0.200 0.0268 104 80-120 Beryllium 0.0199 0.00100 mg/L 0.0200 8.11E-5 99 80-120 Cadmium 0.0204 0.00100 mg/L 0.0200 0.000222 101 80-120 Chromium 0.202 0.0100 mg/L 0.200 0.000592 101 80-120 Cobalt 0.208 0.0100 mg/L 0.200 0.00338 102 80-120 Copper 0.202 0.0100 mg/L 0.200 0.00544 98 80-120 Lead 0.203 0.0100 mg/L 0.200 2.75E-5 101 80-120 Nickel 0.205 0.0100 mg/L 0.200 0.00321 101 80-120 Selenium 0.204 0.0100 mg/L 0.200 0.00307 100 80-120 Silver 0.193 0.0100 mg/L 0.200 0.000109 96 80-120 Vanadium 0.197 0.0100 mg/L 0.200 -0.000124 98 80-120 Zinc 0.218 0.0100 mg/L 0.200 0.0102 104 80-120 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IH24020 - EPA 50308 MS Blank (1H24020-BLK1) Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 10:02 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 5.0 u91L 5.00 100 75-125 LCS (IH24020-BSI) Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 09:11 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 27 2.0 ug/L 25.0 109 80-133 Toluene-d8 4.8 u91L 5.00 96 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 26 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IH24020 - EPA 5030E MS - Continued Matrix Spike (1H24020-MS1) Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 13:37 Source: AE06823-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 29 2.0 ug/L 25.0 0.80 U 117 80-133 Toluene-d8 5.5 u91L 5.00 ill 75-125 Matrix Spike Dup (1H24020-MSD1) Prepared: 08/24/2021 00:00 Analyzed: 08/24/2021 14:02 Source: AE06823-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 30 2.0 ug/L 25.0 0.80 U 119 80-133 2 19 Toluene-d8 4.8 u91L 5.00 95 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 26 (� �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. QL-02 The associated laboratory control sample exhibited high bias; since the result is ND, there is no impact. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. 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 24 of 26 U) W O U N 0 m p U m EL z j LL p O R X Wm N Y cc m m rn LLB K 7 U) z O U L� r W p 2 z a z R v 0 � L yC u N U � ' O m 4] V zM1@o W o o ? 0 ,6 -6 G m= � N C C N n m _0 y. C^^ r p (D L m Vl Lu _ 122 'T— W 0 E Q @o N o Ir Z 9 J c� C q T C Q D C_ a U ip 1i k Wry h- 1 �n,7jn, E 'VOA Ov .�/ a U u7A`LL eS'46'Qd'lN��;J` �dJ`D�`BB e6'�fad X X o m Q! Wir. CH)Qn'weauePG O09Z9' 6 )gpueddy OU9L8 K x v 49 � r► E � � Fn o U LL LL 2 Q) yiC4 w r. b O T C7 C4 m c �- n U E CO E LL in m � J K► 2�- 00 s_ a � � l7 a V � � � _ m n m N +' Y CO E t m c UJ z�E m "A m d m ro Um) 3. "' m E � W �( r E U �6 4LE m EC m n U U o V a O C 0 U r 9 D p a ¢ V ¢ � ¢ Y E'.iE iz ri � k v E k m fi N m m C C C N G c E m m 6 m c t m 1 ¢ a m ro 5 @ X C m Page 25 of 2 U0110 Sample Preservation Verification ENCO Cary Work Order: CE10412 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Resample Project #: 2013788121 102 Logged In: 20-Aug-21 15-48 Logged By Rachel Ann YI Preservation Check Performed By: Date/Time: 11, CE10412-01 Cant Type Pres (pH) Requirerent pH Checked / In Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y `I N / NA Y r0) / NA CE10412-02 Cant Type Pres (pH) Requirement pH Checked / In Control PH Adjusted DatelTime Adiusted Reagent Used/Comments A 250mLP+HNO3 <2 Y I N I NA Y N NA C E 10412-03 Cant Type Pres (pH) Requirement pH Checked / In Control pH Adjusted DatelTime Adiusted Reagent Used/Comments A 250mLP+HNO3 <2 (YY N I NA Y NY NA C E10412-04 Cont Type Pres (pH) Requirement pH Checked 1 In Control pH Adjusted DatelTime Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 �Y 1 N / NA Y I rN .r NA C E 10412-05 Cant Type ties (pH) Requirement pH Checked / In Control pH Adjusted DatelTime Adjusted Reagent Used/Comments A 250mLP+HNO3 2 f/ N 1 NA Y 1 N `! NA C E 10412-06 Cant Type Pres (pH) pH Checked ! pl I Adjusted Date/Time Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 Y i N/ NA Y I N NA Rea ent Name ID 1 2 Rea ent Name ID 3 4 Reaclent Name ID 5 6 pH Strip ID: PH Strips CQF0555 Page 26 of 26 C:lelmntlPri,,.,yvnU_NreservationCheck.rpt _ i ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Wednesday, November 10, 2021 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 2013788121.102, Project Name/Desc: GFL Env - High Point LF Resample ENCO Workorder(s): CE12847 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Wednesday, September 1, 2021. 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, Amanda L. Gaines 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 2rJ PROJECT NARRATIVE Date: November 10, 2021 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF Resample Lab ID: CE12847 Overview (� �Eo www.encolabs.com This report is an amendment to the report dated October 4, 2021 for this work order. This report was revised, at the client's request, to remove the results for MW-6 from the report. This report is an amendment to the original report dated September 17, 2021 for this work order. This report was revised to remove an erroneously reported value in the QC Blank. 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 spike recovery for Alkalinity was outside control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. Quality Control Remarks The 8260D surrogate spike recovery of 4-Bromofluorobenzene was outside of acceptance criteria. The samples were approved based on the recoveries of other surrogate standards. Other Comments Methylene chloride, a common laboratory contaminant, was detected in the Trip Blank; however, this analyte was not detected in the associated samples, reducing the impact of the deviation. All samples received under this work order arrived in acceptable conditions. The samples were not checked for 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. Amanda Gaines 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 25 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MW-1 Lab ID: CE12847-01 Sampled: 08/30/21 09:26 Received: 09/01/21 10:25 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 09/13/21 09/08/21 10:00 09/08/21 11:05 EPA 8260D EPA 503013_MS 09/13/21 09/08/21 13:28 09/09/21 07:34 Client ID: 4116-MW-3 Lab ID: CE12847-02 Sampled: 08/30/21 10:51 Received: 09/01/21 10:25 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 09/13/21 09/08/21 10:00 09/08/21 11:30 EPA 8260D EPA 503013_MS 09/13/21 09/08/21 13:28 09/09/21 08:02 Client ID: 4116-MW-7S Lab ID: CE12847-04 Sampled: 08/30/21 15:50 Received: 09/01/21 10:25 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 09/13/21 09/08/21 10:00 09/08/21 11:56 EPA 8260D EPA 503013_MS 09/13/21 09/08/21 13:28 09/09/21 08:57 Client ID: 4116-AMW-2 Lab ID: CE12847-05 Sampled: 08/30/21 13:29 Received: 09/01/21 10:25 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/27/21 09/02/21 07:44 09/02/21 18:59 EPA 310.2 NO PREP 09/13/21 09/02/21 09:12 09/02/21 12:29 EPA 6010D EPA 3005A 02/26/22 09/01/21 16:50 09/03/21 10:22 EPA 6020E EPA 3005A 02/26/22 09/02/21 12:01 09/02/21 19:14 EPA 7470A EPA 245.1 09/27/21 09/14/21 07:37 09/15/21 11:20 EPA 8260D EPA 503013_MS 09/13/21 09/08/21 13:28 09/09/21 09:24 SM 254OC-2011 NO PREP 09/06/21 09/03/21 16:47 09/03/21 16:47 Client ID: 4116-AMW-2 Lab ID: CE12847-OSRE1 Sampled: 08/30/21 13:29 Received: 09/01/21 10:25 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 09/13/21 09/08/21 10:00 09/08/21 14:04 Client ID: Trip Blank Lab ID: CE12847-06 Sampled: 08/30/21 09:26 Received: 09/01/21 10:25 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 09/13/21 09/08/21 10:00 09/08/21 10:39 EPA 8260D EPA 503013_MS 09/13/21 09/08/21 13:28 09/09/21 04:21 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 25 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW-1 Lab ID: CE12847-01 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 1.4 1 0.80 2.0 uq/L EPA 8260D I Client ID: 4116-MW-3 Lab ID: CE12847-02 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 1.3 J 0.80 2.0 ug/L EPA 8260D Client ID: 4116-MW-7S Lab ID: CE12847-04 Analvte Results Flag MDL PQL Units Method Notes 1,1-Dichloroethane 0.68 J 0.13 1.0 ug/L EPA 8260D 1,4-Dioxane 12 0.80 2.0 ug/L EPA 8260D Benzene 0.44 J 0.15 1.0 ug/L EPA 8260D Client ID: 4116-AMW-2 Lab ID: CE12847-05 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 370 1.10 10.0 ug/L EPA 6010D Benzene 2.6 0.15 1.0 ug/L EPA 8260D Chloride 150000 D 22000 50000 ug/L EPA 300.0 Chromium - Total 4.04 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 13.0 1.40 10.0 ug/L EPA 6010D Iron - Total 7020 22.0 50.0 ug/L EPA 6010D Manganese - Total 4050 1.50 10.0 ug/L EPA 6010D Nickel - Total 7.08 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 66000 D 29000 50000 ug/L EPA 300.0 Tetrahydrofuran 88 0.53 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 980000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 1400000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-AMW-2 Lab ID: CE12847-OSRE3 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 150 D 4.0 10 ug/L EPA 8260D Client ID: Trip Blank Lab ID: CE12847-06 Analvte Results Flag MDL PQL Units Method Notes Methylene chloride 0.41 J 0.23 1.0 ug/L EPA 8260D 0-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 25 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW-1 Lab Sample ID:CE12847-01 Received: 09/01/21 10:25 Matrix: Ground Water Sampled: 08/30/2109:26 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1I08019 EPA 8260D 09/09/21 07:34 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 1I08019 EPA 8260D 09/09/21 07:34 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 1I08019 EPA 8260D 09/09/21 07:34 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1I08019 EPA 8260D 09/09/21 07:34 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1I08019 EPA 8260D 09/09/21 07:34 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 25 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW-1 Lab Sample ID:CE12847-01 Received: 09/01/21 10:25 Matrix: Ground Water Sampled: 08/30/2109:26 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS 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 1I08019 EPA 8260D 09/09/21 07:34 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 63 1 50.0 125 % 53-136 1106019 EPA 6260D 09109121 0734 RKY Dibromofluoromethane 60 1 50.0 120 % 67-129 1106019 EPA 6260D 09109121 0734 RKY Toluene-d8 60 1 50.0 120 % 59-134 1106019 EPA 6260D 09109121 0734 RKY 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]^ 1.4 J ug/L 1 0.80 2.0 1I08025 EPA 8260D 09/08/21 11:05 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.7 1 5.00 95 % 75-125 1108025 EPA 8260D 09108121 11:05 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 25 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW-3 Lab Sample ID:CE12847-02 Received: 09/01/21 10:25 Matrix: Ground Water Sampled:08/30/21 10:51 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1I08019 EPA 8260D 09/09/21 08:02 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 1I08019 EPA 8260D 09/09/21 08:02 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 1I08019 EPA 8260D 09/09/21 08:02 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1I08019 EPA 8260D 09/09/21 08:02 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1I08019 EPA 8260D 09/09/21 08:02 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 25 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW-3 Lab Sample ID:CE12847-02 Received: 09/01/21 10:25 Matrix: Ground Water Sampled:08/30/21 10:51 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS 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 1I08019 EPA 8260D 09/09/21 08:02 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 65 1 50.0 129 % 53-136 1106019 EPA 6260D 09109121 08:02 RKY Dibromofluoromethane 62 1 50.0 123 % 67-129 1106019 EPA 6260D 09109121 08:02 RKY Toluene-d8 62 1 50.0 125 % 59-134 1106019 EPA 6260D 09109121 08:02 RKY 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]^ 1.3 J ug/L 1 0.80 2.0 1I08025 EPA 8260D 09/08/21 11:30 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.7 1 5.00 93 % 75-125 1108025 EPA 8260D 09108121 11:30 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 25 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW-7S Lab Sample ID:CE12847-04 Received: 09/01/21 10:25 Matrix: Ground Water Sampled:08/30/21 15:50 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,1-Dichloroethane [75-34-3]A 0.68 J ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1I08019 EPA 8260D 09/09/21 08:57 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Acetone [67-64-1]^ 10 U ug/L 1 10 20 1I08019 EPA 8260D 09/09/21 08:57 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 1I08019 EPA 8260D 09/09/21 08:57 RKY Benzene [71-43-2]A 0.44 J ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 1I08019 EPA 8260D 09/09/21 08:57 RKY Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1I08019 EPA 8260D 09/09/21 08:57 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 25 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW-7S Lab Sample ID:CE12847-04 Received: 09/01/21 10:25 Matrix: Ground Water Sampled:08/30/21 15:50 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte ICAS 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 1I08019 EPA 8260D 09/09/21 08:57 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 61 1 50.0 122 % 53-136 1106019 EPA 6260D 09109121 08:57 RKY Dibromofluoromethane 63 1 50.0 126 % 67-129 1106019 EPA 6260D 09109121 08:57 RKY Toluene-d8 63 1 50.0 125 % 59-134 1106019 EPA 6260D 09109121 08:57 RKY 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]^ 12 ug/L 1 0.80 2.0 1I08025 EPA 8260D 09/08/21 11:56 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.6 1 5.00 93 % 75-125 1108025 EPA 8260D 09108121 11:56 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of 25 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW-2 Lab Sample ID:CE12847-05 Received: 09/01/21 10:25 Matrix: Ground Water Sampled:08/30/21 13:29 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1I08019 EPA 8260D 09/09/21 09:24 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 1I08019 EPA 8260D 09/09/21 09:24 RKY Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 1I08019 EPA 8260D 09/09/21 09:24 RKY Benzene [71-43-2]A 2.6 ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Tetrahydrofuran [109-99-9]A 88 ug/L 1 0.53 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1I08019 EPA 8260D 09/09/21 09:24 RKY Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 1I08019 EPA 8260D 09/09/21 09:24 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 25 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW-2 Lab Sample ID:CE12847-05 Received: 09/01/21 10:25 Matrix: Ground Water Sampled:08/30/21 13:29 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres 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 1I08019 EPA 8260D 09/09/21 09:24 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 69 1 50.0 137 % 53-136 1106019 EPA 6260D 09109121 09:24 RKY QS-03 Dlbromofluoromethane 62 1 50.0 124 % 67-129 1106019 EPA 6260D 09109121 09:24 RKY Toluene-c48 66 1 50.0 132 % 59-134 1106019 EPA 6260D 09109121 09:24 RKY 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 1I14003 EPA 7470A 09/15/21 11:20 CPH 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 1I02028 EPA 6020B 09/02/21 19:14 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1I01031 EPA 6010D 09/03/21 10:22 JDH Barium [7440-39-3]^ 370 ug/L 1 1.10 10.0 1101031 EPA 6010D 09/03/21 10:22 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1I01031 EPA 6010D 09/03/21 10:22 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1I01031 EPA 6010D 09/03/21 10:22 JDH Chromium [7440-47-3]^ 4.04 J ug/L 1 1.40 10.0 1101031 EPA 6010D 09/03/21 10:22 JDH Cobalt[7440-48-4]^ 13.0 ug/L 1 1.40 10.0 1101031 EPA 6010D 09/03/21 10:22 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1I01031 EPA 6010D 09/03/21 10:22 JDH Iron [7439-89-6]^ 7020 ug/L 1 22.0 50.0 1101031 EPA 6010D 09/03/21 10:22 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1I01031 EPA 6010D 09/03/21 10:22 JDH Manganese [7439-96-5]1 4050 ug/L 1 1.50 10.0 1101031 EPA 6010D 09/03/21 10:22 JDH Nickel[7440-02-O]^ 7.08 J ug/L 1 2.20 10.0 1101031 EPA 6010D 09/03/21 10:22 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1I01031 EPA 6010D 09/03/21 10:22 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1I01031 EPA 6010D 09/03/21 10:22 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1I02028 EPA 6020B 09/02/21 19:14 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1I01031 EPA 6010D 09/03/21 10:22 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1I01031 EPA 6010D 09/03/21 10:22 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]^ 150000 D ug/L 10 22000 50000 1102003 EPA 300.0 09/02/21 18:59 ZGW Sulfate as SO4 [14808-79-B]^ 66000 D ug/L 10 29000 50000 1102003 EPA 300.0 09/02/21 18:59 ZGW Total Alkalinity as CaCO3 [471-34-1]^ 980000 D ug/L 10 140000 150000 1102014 EPA 310.2 09/02/21 12:29 JAH Total Dissolved Solids^ 1400000 ug/L 1 50000 50000 1103016 SM 254OC-2011 09/03/21 16:47 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 of 25 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW-2 Lab Sample ID:CE12847-05 Received: 09/01/21 10:25 Matrix: Ground Water Sampled:08/30/21 13:29 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: Nicolas Tejada-Torres 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]^ 150 D ug/L 5 4.0 10 1I08025 EPA 8260D 09/08/21 14:04 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.6 1 5.00 93 % 75-125 1106025 EPA 6260D 09106121 14:04 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 25 00� www.encolabs.com ANALYTICAL RESULTS Description: Trip Blank Lab Sample ID:CE12847-06 Received: 09/01/21 10:25 Matrix: Water Sampled: 08/30/2109:26 Work Order: CE12847 Project: GFL Env - High Point LF Resample Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analvte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 1I08019 EPA 8260D 09/09/21 04:21 RKY Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 1I08019 EPA 8260D 09/09/21 04:21 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Chlorobenzene [108-90-7]A 0.17 u ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Iodomethane [74-88-4]A 1.7 u ug/L 1 1.7 5.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Methylene chloride [75-09-2]A 0.41 J ug/L 1 0.23 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY 0-01 Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 u ug/L 1 0.21 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 u ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Trichloroethene [79-01-6]A 0.15 u ug/L 1 0.15 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Trichlorofluoromethane [75-69-4]A 0.24 u ug/L 1 0.24 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 1I08019 EPA 8260D 09/09/21 04:21 RKY Vinyl chloride [75-01-4]A 0.32 Ll ug/L 1 0.32 1.0 1I08019 EPA 8260D 09/09/21 04:21 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 25 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: Trip Blank Lab Sample ID:CE12847-06 Received: 09/01/21 10:25 Matrix: Water Sampled: 08/30/2109:26 Work Order: CE12847 Project: GFL Env - High Point LF Resample 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 1I08019 EPA 8260D 09/09/21 04:21 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 61 1 50.0 122 % 53-136 1106019 EPA 6260D 09109121 04:21 RKY Dibromofluoromethane 61 1 50.0 121 % 67-129 1106019 EPA 6260D 09109121 04:21 RKY Toluene-d8 63 1 50.0 126 % 59-134 1106019 EPA 6260D 09109121 04:21 RKY 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 1I08025 EPA 8260D 09/08/21 10:39 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.0 1 5.00 101 % 75-125 1108025 EPA 8260D 09108121 1029 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 25 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1108019 - EPA 50305 MS Blank (1I08019-BLKIL) Prepared: 09/08/2021 13:28 Analyzed: 09/09/2021 02:31 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 63 ug/L 50.0 126 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 16 Of 25 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1IOB019 - EPA 50305 MS - Continued (� �Eo www.encolabs.com Blank (II08019-BLK1) Continued Prepared: 09/08/2021 13:28 Analyzed: 09/09/2021 02:31 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 61 u91L 50.0 121 67-129 Toluene-& 64 u91L 50.0 127 59-134 LCS (3I08019-BSI) Prepared: 09/08/2021 13:28 Analyzed: 09/09/2021 00:41 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 105 75-133 Benzene 20 1.0 ug/L 20.0 102 80-134 Chlorobenzene 22 1.0 ug/L 20.0 112 80-120 Toluene 23 1.0 ug/L 20.0 115 71-120 Trichloroethene 20 1.0 ug/L 20.0 98 74-120 Matrix Spike (3I08019-MS1) Prepared: 09/08/2021 13:28 Analyzed: 09/09/2021 01:09 Source: CE13420-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 26 1.0 ug/L 20.0 0.21 U 132 75-133 Benzene 22 1.0 ug/L 20.0 0.15 U 112 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 112 80-120 Toluene 23 1.0 ug/L 20.0 0.14 U 117 71-120 Trichloroethene 33 1.0 ug/L 20.0 14 99 74-120 Matrix Spike Dup (1I08019-MSD1) Prepared: 09/08/2021 13:28 Analyzed: 09/09/2021 01:36 Source: CE13420-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 26 1.0 ug/L 20.0 0.21 U 130 75-133 2 20 Benzene 22 1.0 ug/L 20.0 0.15 U 112 80-134 0.1 17 Chlorobenzene 23 1.0 ug/L 20.0 0.17 U 115 80-120 3 16 Toluene 24 1.0 ug/L 20.0 0.14 U 120 71-120 3 17 Trichloroethene 33 1.0 ug/L 20.0 14 96 74-120 2 22 Metals by EPA 6000/7000 Series Methods - Quality Control Batch 1114003 - EPA 245.1 Blank (3I14003-BLK3) Prepared: 09/14/2021 07:37 Analyzed: 09/15/2021 10:37 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 (3I34003-BSI) Prepared: 09/14/2021 07:37 Analyzed: 09/15/2021 10:40 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.95 0.200 ug/L 5.00 99 80-120 Matrix Spike (1I14003-MS1) Prepared: 09/14/2021 07:37 Analyzed: 09/15/2021 10:42 Source: CE12846-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.15 0.200 ug/L 5.00 0.150 U 103 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 17 Of 25 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 1114003 - EPA 245.1 - Continued Matrix Spike Dup (l114003-MSD1) Prepared: 09/14/2021 07:37 Analyzed: 09/15/2021 10:44 Source: CE12846-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.90 0.200 ug/L 5.00 0.150 U 98 75-125 5 25 Post Spike (1I14003-PS1) Prepared: 09/14/2021 07:37 Analyzed: 09/15/2021 10:46 Source: CE12846-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.13 0.200 ug/L 5.00 -0.0113 103 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1101031 - EPA 3005A Blank (1I03031-BLK3) Prepared: 09/01/2021 16:50 Analyzed: 09/03/2021 09:02 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 (1I01031-BS1) Prepared: 09/01/2021 16:50 Analyzed: 09/03/2021 09:08 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits Arsenic 201 10.0 ug/L 200 100 80-120 Barium 204 10.0 ug/L 200 102 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 19.8 1.00 ug/L 20.0 99 80-120 Chromium 204 10.0 ug/L 200 102 80-120 Cobalt 202 10.0 ug/L 200 101 80-120 Copper 201 10.0 ug/L 200 100 80-120 Iron 1010 50.0 ug/L 1000 101 80-120 Lead 199 10.0 ug/L 200 100 80-120 Manganese 201 10.0 ug/L 200 100 80-120 Nickel 202 10.0 ug/L 200 101 80-120 Selenium 206 10.0 ug/L 200 103 80-120 Silver 203 10.0 ug/L 200 102 80-120 Vanadium 201 10.0 ug/L 200 100 80-120 Zinc 205 10.0 ug/L 200 103 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. RPD RPD Limit Notes Page 18 of 25 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1I01031 - EPA 3005A - Continued Matrix Spike (1I01031-MSI) Prepared: 09/01/2021 16:50 Analyzed: 09/03/2021 09:11 Source: CE11255-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 197 10.0 ug/L 200 7.60 U 99 75-125 Barium 279 10.0 ug/L 200 84.5 97 75-125 Beryllium 20.0 1.00 ug/L 20.0 0.160 U 100 75-125 Cadmium 18.6 1.00 ug/L 20.0 0.360 U 93 75-125 Chromium 198 10.0 ug/L 200 1.40 U 99 75-125 Cobalt 202 10.0 ug/L 200 1.40 U 101 75-125 Copper 191 10.0 ug/L 200 1.60 U 96 75-125 Iron 1120 50.0 ug/L 1000 132 99 75-125 Lead 197 10.0 ug/L 200 3.10 U 98 75-125 Manganese 216 10.0 ug/L 200 17.2 100 75-125 Nickel 196 10.0 ug/L 200 2.20 U 98 75-125 Selenium 195 10.0 ug/L 200 6.20 U 97 75-125 Silver 194 10.0 ug/L 200 1.90 U 97 75-125 Vanadium 195 10.0 ug/L 200 1.40 U 98 75-125 Zinc 198 10.0 ug/L 200 4.40 U 99 75-125 Matrix Spike Dup (3I01031-MSD1) Prepared: 09/01/2021 16:50 Analyzed: 09/03/2021 09:14 Source: CE11255-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 195 10.0 ug/L 200 7.60 U 98 75-125 1 20 Barium 286 10.0 ug/L 200 84.5 101 75-125 2 20 Beryllium 20.0 1.00 ug/L 20.0 0.160 U 100 75-125 0.2 20 Cadmium 19.6 1.00 ug/L 20.0 0.360 U 98 75-125 5 20 Chromium 198 10.0 ug/L 200 1.40 U 99 75-125 0.1 20 Cobalt 199 10.0 ug/L 200 1.40 U 99 75-125 2 20 Copper 191 10.0 ug/L 200 1.60 U 96 75-125 0.06 20 Iron 1160 50.0 ug/L 1000 132 103 75-125 4 20 Lead 197 10.0 ug/L 200 3.10 U 98 75-125 0.1 20 Manganese 215 10.0 ug/L 200 17.2 99 75-125 0.5 20 Nickel 206 10.0 ug/L 200 2.20 U 103 75-125 5 20 Selenium 194 10.0 ug/L 200 6.20 U 97 75-125 0.5 20 Silver 196 10.0 ug/L 200 1.90 U 98 75-125 0.7 20 Vanadium 195 10.0 ug/L 200 1.40 U 97 75-125 0.2 20 Zinc 205 10.0 ug/L 200 4.40 U 102 75-125 3 20 Post Spike (SI03031-PS1) Prepared: 09/01/2021 16:50 Analyzed: 09/03/2021 09:16 Source: CE11255-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.200 0.0100 mg/L 0.200 0.00124 99 80-120 Barium 0.286 0.0100 mg/L 0.200 0.0845 100 80-120 Beryllium 0.0207 0.00100 mg/L 0.0200 0.000103 103 80-120 Cadmium 0.0196 0.00100 mg/L 0.0200 -8.61E-5 98 80-120 Chromium 0.206 0.0100 mg/L 0.200 0.00116 103 80-120 Cobalt 0.205 0.0100 mg/L 0.200 6.49E-5 103 80-120 Copper 0.199 0.0100 mg/L 0.200 -5.05E-5 99 80-120 Iron 1.16 0.0500 mg/L 1.00 0.132 103 80-120 Lead 0.199 0.0100 mg/L 0.200 0.00193 99 80-120 Manganese 0.223 0.0100 mg/L 0.200 0.0172 103 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 25 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1101O31 - EPA 3OO5A - Continued Post Spike (SI01031-PS1) Continued Prepared: 09/01/2021 16:50 Analyzed: 09/03/2021 09:16 Source: CE11255-OS Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 0.203 0.0100 mg/L 0.200 0.00172 101 80-120 Selenium 0.203 0.0100 mg/L 0.200 0.00102 101 80-120 Silver 0.201 0.0100 mg/L 0.200 0.000231 100 80-120 Vanadium 0.201 0.0100 mg/L 0.200 0.000494 100 80-120 Zinc 0.206 0.0100 mg/L 0.200 0.00130 102 80-120 Batch IIO2O2B - EPA 3OO5A Blank (3I02028-BLK3) Prepared: 09/02/2021 12:01 Analyzed: 09/02/2021 16:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.740 U 2.00 ug/L Thallium 0.220 U 2.00 ug/L LCS (l102028-BS1) Prepared: 09/02/2021 12:01 Analyzed: 09/02/2021 16:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 41.4 2.00 ug/L 40.0 104 80-120 Thallium 40.8 2.00 ug/L 40.0 102 80-120 Matrix Spike (l102028-MSI) Prepared: 09/02/2021 12:01 Analyzed: 09/02/2021 16:52 Source: CE11255-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 42.3 2.00 ug/L 40.0 0.740 U 106 75-125 Thallium 40.4 2.00 ug/L 40.0 0.220 U 101 75-125 Matrix Spike Dup (3I02028-MSD3) Prepared: 09/02/2021 12:01 Analyzed: 09/02/2021 16:57 Source: CE11255-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 43.0 2.00 ug/L 40.0 0.740 U 108 75-125 2 20 Thallium 40.7 2.00 ug/L 40.0 0.220 U 102 75-125 0.7 20 Post Spike (l102028-PS1) Prepared: 09/02/2021 12:01 Analyzed: 09/02/2021 17:01 Source: CE11255-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 23.9 1.00 ug/L 20.0 -0.00430 120 75-125 Thallium 22.6 1.00 ug/L 20.0 0.00205 113 75-125 Classical Chemistry Parameters - Quality Control Batch 1102003 - NO PREP Blank (3I02003-BLK3) Prepared: 09/02/2021 07:44 Analyzed: 09/02/2021 16:02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride Sulfate as SO4 2200 U 5000 ug/L 2900 U 5000 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 Of 255 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 1102003 - NO PREP - Continued LCS (l102003-BS1) Prepared: 09/02/2021 07:44 Analyzed: 09/02/2021 16:20 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 51000 5000 ug/L 50000 102 90-110 Sulfate as SO4 52000 5000 ug/L 50000 103 90-110 Matrix Spike (3I02003-MS1) Prepared: 09/02/2021 07:44 Analyzed: 09/02/2021 16:37 Source: CE10689-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 840000 50000 ug/L 200000 640000 103 90-110 Sulfate as SO4 360000 50000 ug/L 200000 160000 100 90-110 Matrix Spike Dup (l102003-MSD1) Prepared: 09/02/2021 07:44 Analyzed: 09/02/2021 16:55 Source: CE10689-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 850000 50000 ug/L 200000 640000 106 90-110 0.7 10 Sulfate as SO4 360000 50000 ug/L 200000 160000 100 90-110 0.1 10 Batch 1102014 - NO PREP Blank (3I02014-BLK3) Prepared: 09/02/2021 09:12 Analyzed: 09/02/2021 12:16 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 (3I02014-BS3) Prepared: 09/02/2021 09:12 Analyzed: 09/02/2021 12:17 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 99 15 mg/L 100 99 80-120 Matrix Spike (3I02014-MSi) Prepared: 09/02/2021 09:12 Analyzed: 09/02/2021 12:18 Source: CE11482-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 30000 15000 ug/L 22000 80-120 QM-07 Matrix Spike Dup (3I02014-MSD3) Prepared: 09/02/2021 09:12 Analyzed: 09/02/2021 12:19 Source: CE11482-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 24000 15000 ug/L 22000 80-120 22 25 QM-07 Batch 1103016 - NO PREP Blank (l103016-BLK1) Prepared & Analyzed: 09/03/2021 16:47 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 (3I03016-BSI) Prepared & Analyzed: 09/03/2021 16:47 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 21 of 25 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 1103016 - NO PREP - Continued LCS (1I03016-BS1) Continued Prepared & Analyzed: 09/03/2021 16:47 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 900 50 mg/L 1000 90 80-120 Duplicate (3I03016-DUP1) Prepared & Analyzed: 09/03/2021 16:47 Source: CE12847-03 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 2300000 100000 ug/L 2200000 5 20 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 1108025 - EPA 5030B MS Blank (3I08025-BLK3) Prepared: 09/08/2021 00:00 Analyzed: 09/08/2021 10:10 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-d8 4.9 u91L 5.00 98 75-125 LCS (1I08025-BSI) Prepared: 09/08/2021 00:00 Analyzed: 09/08/2021 09:19 Spike Source %REC RPD Analyte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 30 2.0 ug/L 25.0 118 80-133 Toluene-d8 5.0 u91L 5.00 100 75-125 Matrix Spike (3I08025-MS1) Prepared: 09/08/2021 00:00 Analyzed: 09/08/2021 13:13 Source: CE12847-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 29 2.0 ug/L 25.0 1.4 112 80-133 Toluene-& 4.8 u91L 5.00 95 75-125 Matrix Spike Dup (3I08025-MSDI) Prepared: 09/08/2021 00:00 Analyzed: 09/08/2021 13:38 Source: CE12847-01 Spike Source %REC RPD Analyte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 30 2.0 ug/L 25.0 1.4 114 80-133 2 19 Toluene-& 4.7 u91L 5.00 94 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 25 (� �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. 0-01 This compound is a common laboratory contaminant. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QS-03 Surrogate recovery outside acceptance limits FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 25 E c -0 d fG O c F a,'9 L' c -O C AF E N a 5�`[ W E 3 a)j z� o ro 7j J a c O U� w } a o D � � q (� a Z a LL1 Or Z a 2 U W Q o INhh cc m m a m z J Q a w v 0 n m Q 11Jcc N N w U) Z O U Fa- Z w 6 r v Z S 0 cc 5:40 LO.8Qj 00£ alelinS d ° BH J049ma a` sn! `oos eptiol4're x xx x, x x uZ'n'WOS'n'45 X x 'q�•iµ'uyy' B�'n�'��'o�`WJ'a8'ee`��'d al WIS ao9x9'aep ixa x X ?C xTxx aoffZe'L x,uuedda ausza n E m R w co 0(} LD OO d' o N LL 3 0 CL 1 N E: v vw E o U �_ c z� zJ ° N U. m N a m� ng a a a m h z� W _ O �r xp� ul + ❑ Uca 7p L R O U C 07 R� Z v C G mO�� m 10 L n R E U Q [] H tf1 ro V "161 o E � Sv 7 U o � U O d1 9 p N 1 1 1 1 1 c& r tD T t6 T ca T tip T Q E w i in a � c N 1LLI m `m m 5 s C E-yy � T 0 m c N Ul n N i � {4 Page 24 of 25 Sample Preservation Verification ENCO Cary Work Order; CE12847 Client: Golder Associates, Inc. (GO007) Project: GFL Env - High Point LF Resample Project #: 2013788121.600 Logged In: 01-Sep-21 10:33 Logged By: Rachel AnKEI ' Preservation Check Performed By: Date/Time: C E 12847-03 Cont Yp Type Pres (pH) pH Checked ! Requirement In Control DateMme PH Adjusted Adjusted Reagent Used/Comments B 250mLP+HNO3 <2 Y N I NA Y N NA C E 12847-05 Cant Type Pres (pH) pH Checked I pH Adjusted Date/Time Reagent Used/Comments Requirement In Control _ Adjusted B 250niLP+HNO3 <2 Y ;1 N! NA Y !, N NA 1 Rea ent Name ID 1 2 Rea ent Name ID 3 4 Rea ent Name ID 5 6 pH Strip I D PH Strips COF0555 C:IeImnt\Prii I itiwhu_rr ubei vwuurK.neCK.rpt Page 25 of 25 WORK ORDER Printed: 9/2/2021 8:48:27AM CE12847 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Amanda L. Gaines Project: GFL Env - High Point LF Resample Project Number: 2013788121.102 PO #: 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: Rachel Ann Yonish Date Received: 01-Sep-21 10:25 Logged In By: Rachel Ann Yonish Date Logged In: 01-Sep-21 10:33 Work Order Comments: C-213 received at 2.6°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 GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 5 Project Name: High Point C&D Landfill Project Reference Number: 2013788121.102 Sampling Event Date: August 18, 19, 30, 2021 Review Date: September 30, 2021 Report #: CE09534, CE09536, CE09538, CE10412, CE12847 GOLFER MEMBER Of WSP Initials: TM awaC: Ole 11-a•Z( 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 X NC Appendix II + cyanide, sulfide (MW-8) NC Subtitle D Leachate List X Other: NC Appendix I + tetrahydrofuran & 1,4-dioxane, sulfate, chloride, TDS 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. TM Sample receipt condition at laboratory was acceptable. TM Each sample and blank submitted for analysis appears in the report. 2.0 SAMPLE HOLDING TIMES TM Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2of5 GOLDER MEMBER OF WSP Review Criteria Method Anal tes 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 re uirements 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 Phos horous 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). ➢ (CE12847) The 8260D surrogate spike recovery of 4-Bromofluorobenzene was outside of acceptance criteria. The samples were approved based on the recoveries of other surrogate standards. 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). ➢ (CE09538) The 8260D LCS exhibited a high bias for 2-Butanone, Acetone, Isobutyl alcohol, and trans-1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1-Trichloroethane, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, Acetone, Bromodichloromethane, Bromomethane, Chloroprene, Methacrylonitrile, and trans-1,4- Dichloro-2-butene; however, these analytes were not detected in the associated samples. The spike recoveries for 1,1,1-Trichloroethane, 1,1-Dichloroethene, 2-Butanone, Acetone, Bromoform, Carbon tetrachloride, Methylene chloride, and trans-1,4-Dichloro-2-butene were outside control limits for the MS and/or MSD samples; however, these analytes were not detected in the associated samples. The spike recovery for 1,4-Dioxane was outside control limits for the MS and MSD samples. The QC batches were approved based on acceptable LCS recovery of this analyte. ➢ (CE09536) The 8260D LCS exhibited a high bias for Acetone and Bromoform; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1-Trichloroethane, 1,2-Dibromo-3- chloropropane, 1,2-Dichloroethane, Acetone, Bromodichloromethane, Bromomethane; however, these analytes were not detected in the associated samples. The spike recovery for 1,4-dioxane was outside control limits for the MS and MSD samples. The QC batch was GOLDER ASSOCIATES NC, INC. G O L D E R QUALITY ASSURANCE & QUALITY CONTROL MEMBER OF WSP LABORATORY DATA REVIEW Page 3 of 5 approved based on acceptable LCS recovery of this analyte. ➢ (CE10412) The 8260D LCS exhibited a high bias for 2-Butanone, Acetone, Bromoform, and trans-1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1- Trichloroethane, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, Acetone, Bromodichloromethane, Bromomethane, and trans-1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The spike recovery for 1,1- Dichloroethene was outside control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. ➢ (CE09534) The 8260D LCS exhibited a high bias for 2-Butanone, Acetone, and trans-1,4- Dichloro-2-butene; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1- Trichloroethane, 1,2-Dibromo-3-chloropropane, 1,2-Dichloroethane, Acetone, Bromodichloromethane, Bromomethane, and trans-1,4-Dichloro-2-butene; however, these analytes were not detected in the associated samples. The spike recovery for 1,1- Dichloroethene was outside control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. ➢ The 8270E CCV exhibited a low bias for Butylbenzylphthalate, any reported result should be considered estimated. ➢ The LCS exhibited a high bias for Mercury; however, this element was not detected in the associated samples. The spike recoveries for Iron and Manganese were outside control limits for the MS, MSD, and/or Post Digestion spike samples. The QC batches were approved based on acceptable LCS recovery of these elements. ➢ The spike recoveries for Alkalinity, Chloride, Cyanide, Sulfate, and Sulfide were outside control limits for the MS and MSD samples, the precision between duplicate spikes of Sulfate exceeded acceptance criteria. The QC batches were approved based on acceptable LCS recovery of these analytes. 4.0 ANALYTE LISTS/METHODS TM The proper number of constituents are present for each analyte list as identified above (including detects where applicable). 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. ➢ Trip Blank - Methylene Chloride (not detected in the associated samples) 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 GOLDER ASSOCIATES NC, INC. G O L D E R QUALITY ASSURANCE $ QUALITY CONTROL MEMBER OF WSP LABORATORY DATA REVIEW Page 4 of 5 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-2, AMW-2 (5x), MW-6 (x10) Total Alkalinity as CaCO3 — MW-7S (x5), MW-2, MW-6, MW-8, AMW-1, AMW-2 (x10) ➢ Chloride: MW-1, MW-3, MW-4s, MW-5, MW-7S (x2), MW-8, AMW-1 (x5), MW-6, AMW-2 (x10), MW-2, MW-6, (x25) ➢ Sulfate: MW-3, MW-4S, MW-5, MW-7S (x2), MW-1, MW-8, AMW-1 (x5), MW-6, AMW-2 (x10) ➢ Total Dissolved Solids: MW-2, MW-6 (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 ➢ Benzene (NC 2L = 1 uq/L) ➢ Manganese (NC 2L = 50 uq/L) o MW-2 @ 3.6 ug/L o MW-2 @ 11500 ug/L o MW-6 @ 4.7 ug/L o MW-4S @ 61.2 ug/L o MW-8 @ 1.7 ug/L o MW-5 @ 1600 ug/L o AMW-2 @ 2.6 ug/L o MW-6 @ 6990 ug/L o MW-8 @ 25600 ug/L ➢ Barium (NC 2L = 700 uq/L) o AMW-1 @ 8290 ug/L o MW-2 @ 1450 ug/L o AMW-2 @ 4050 ug/L o MW-6 @ 898 ug/L o P-3 @ 91.4 ug/L - UG ➢ Chromium (NC 2L = 10 uq/L) ➢ Total Dissolved Solids (NC 2L = o MW-8 @ 13.4 ug/L 500 m /L o MW-2 @ 1900 mg/L ➢ Cobalt (NC 2L IMAC = 1 uq/L) o MW-6 @ 2400 mg/L o MW-2 @ 9.04 ug/L (J) o MW-7S @ 520 mg/L o MW-6 @ 5.30 ug/L (J) o MW-8 @ 1200 mg/L o MW-8 @ 6.01 ug/L (J) o AMW-2 @ 1400 mg/L o AMW-1 @ 12.8 ug/L o AMW-2 @ 13.0 ug/L ➢ Vanadium (NC 2L IMAC = 0.3 u IL ➢ Iron (NC 2L = 300 uq/L) o MW-7S @ 5.79 ug/L (J) o MW-2 @ 40100 ug/L o MW-3 @ 353 ug/L ➢ 1,4-Dioxane (NC 2L = 3 uq/L) o MW-4S @ 946 ug/L o MW-2 @ 110 ug/L o MW-5 @ 11800 ug/L o MW-4S @ 5.3 ug/L o MW-6 @ 12000 ug/L o MW-5 @ 10 ug/L o MW-8 @ 2640 ug/L o MW-6 @ 260 ug/L o AMW-1 @ 11700 ug/L o MW-7S @ 12 ug/L o AMW-2 @ 7020 ug/L o MW-8 @ 60 ug/L o AMW-1 @ 37 ug/L GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 5 of 5 o AMW-2 @ 150 ug/L ➢ 1,4-Dioxane (Human Health = 0.35 99L o SW-1 @ 1.9 ug/L (J) - upstream o SW-3 @ 5.0 ug/L — GOLDER MEMBER OF WSP upstream o SW-2 @ 5.1 ug/L o SW-4 @ 5.8 ug/L o SW-5 @ 19 ug/L o SW-6 @ 6.6 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). ➢ Antimony: >5x historical value @ SW-1 (upgradient) ➢ Barium, chromium, cobalt, 1,4-dioxane: first time detections @ SW-5 & SW-6 ➢ Copper: first time detection @ SW-6 ➢ Nickel: first time detection @ SW-6 ➢ Vanadium: first time detection @ SW-6 ➢ 1,4-Dioxane: 15t time NC 2L exceedance @ MW-4S (5.3 ug/L) ➢ 1,4-Dioxane: 1st time detection MWA @ 1.4 ug/L (J) TM Other report issues/Communications with laboratory/etc.: v The following samples originally submitted with report CE09538 were not received by the lab. These were resampled on August 30, 2021 and are shown on lab report CE12847: MW-1, MW-3, MW-6, MW-7S, and AMW-2. ➢ The following sample originally submitted with report CE09536 was not received by the lab. It was resampled on August 30, 2021 and is shown on lab report CE12847: AMW-2. GILDER MEMBER OF WSP golder.com