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Home My WebLink About4116_Guilford_WI_GFL_HighPoint_CDLF_GW_FID1574860_202103261 eNR USE ONLY—.± ❑Paper Report ❑Plecifonic Data - Email CD (data loaded: Yes 1 No) DoclEvent #. _ NC DENR I I Environmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to It are "Public Records" as defined In NC General Statute 132-1. As such, these docurnenis are available far inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Propere 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 213 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 notifcatlon 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 an or nearby the facility (NCAC 13B .1629 (4)(a)(I). Send the original signed and sealed form, any tables, and Electronic data deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Golder Associates NC, Inc. on behalf of Waste Industries of High Point, LLC Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Rachel P_ Kirkman, PG E-mail: rkirkmanagoider.com Phone:336-852-4903 NC Landfill Rule: Actual sampling dates (e.g.. Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20.24. 2006) Waste Industries of High Point 5830 Riverdale Drive, Jamestown, NO 41 16 0500 January 19-20, 2021 and C&D Landfill 27282 . February 24.2021 Envlronmental Status: (Check all that apply) InitiaV13ackground Monitoring [� Detection Monitoring X❑ Assessment Monitoring Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Groundwater monitoring data from private water supply wells ❑ Leachate monitoring data ❑ Surface water monitoring data Methane gas monitoring data Corrective action data (specify) Olher(specify) Notification attached? No. No groundwater or surface water standards were exceeded. X Yes, a notification of values exceeding a groundwater or surface water standard is attached. It Includes a list of groundwater and surface water monitoring points, dates, analytical values. NO 2L groundwater standard. NO 25 surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration, El Yes. a notification of values exceeding an explosive methane gas limit Is attached. It includes the methane monitoring points. dates, sample values and explosive methane gas limits. Certification _ To the best of my knowledge, the Information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards, I am aware that there are significant penalties for making any false statement, representation, or certification Including the passibility of a fine and ImprlsonmenL Rachel P. Kirkman, PG Principal and Senior Consultant 336-852-4903 Faclllty Representative Name (Print) Tide (Area Code) Telephone Number -YI _ , a „/i 3r26121 Affix NC Llcensedl Professional Geologist Seal Signature Date Golder Associates NO, Inc., 5B Oak Branch Drive, Greensboro. NO 27407 Facility Representative Address C-2862 NC PE Finn License Number (if applicable effective May 1, 2009) Revised 612009 GOLDER REPORT FIRST SEMI-ANNUAL 2021 WATER QUALITY MONITORING REPORT High Point Construction & Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Submitted to: High Point C&D Landfill, LLC 5830 Riverdale Drive Jamestown, NC 27282 Submitted by: Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North C +1 336 852-4903 2013788121.101 March 26, 2021 March 26, 2021 Distribution List Seth Heath, General Manager, 5830 Riverdale Drive, Jamestown, NC 27282, seth.heath@gflenv.com, 336-886-3560. 2013788121.101 Bryan Wuester, Regional Landfill Manager, 3301 Benson Drive, Suite 601, Raleigh, NC 27609, bryan.wuester@gflenv.com. (Electronic Copy) Travis Hitchcock, Region Vice President, 3301 Benson Drive, Suite 601, Raleigh, NC, 27609, travis.hitchcock@gflenv.com. (Electronic Copy) Jaclynne Drummond, Hydrogeologist, North Carolina Department of Environmental Quality, Division of Waste Management - Solid Waste Section, 2090 US Highway 70, Swannanoa, NC 28778, jaclynne.drummond@ncdern.gov, 828-296-4706. ,> GOLDER March 26, 2021 2013788121.101 Executive Summary Golder Associates NC, Inc. (Golder) is submitting the enclosed Water Quality Monitoring Report on behalf of Waste Industries of High Point, LLC (Waste Industries), which documents the results of the January 19 — 20, 2021, semi-annual compliance monitoring event and the February 24, 2021, verification event at the High Point Construction and Demolition Landfill. Three North Carolina (NC) Appendix I inorganic constituents (barium, cobalt, and chromium) were detected at quantifiable concentrations above their applicable groundwater standards during the January 2021 event in samples from one or more downgradient wells. Cobalt, thallium, and vanadium were also detected at one or more wells at estimated concentrations below their respective practical quantitation limits (PQLs) but above applicable groundwater standards during this event; as the concentrations are below their respective PQLs, no further action is warranted. Indicator parameters iron, manganese, and total dissolved solids (TDS) were detected at quantifiable concentrations above their respective NC 2L Standards in samples from one or more downgradient wells during this event, as they have been during previous events. As presented in previous reports and alternate source demonstrations (ASDs), 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 January 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 fourth of ten planned sampling events. One NC Appendix I organic compound, benzene, was detected at concentrations above the NC 2L Standard in the samples from groundwater monitoring wells MW-2, MW-6, MW-8, AMW-1 and AMW-2 during the January 2021 event and the concentrations were confirmed for monitoring wells MW-8 and AMW-1 during the February 2021 verification event. Additionally, 1,4-dioxane was detected in the samples from MW-2, 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. NC Appendix I inorganic compounds were not detected at concentrations that exceeded the applicable surface water standards during the January 2021 event. 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 at upstream monitoring points SW-1 and SW-3 and downstream surface water monitoring points SW-2 and SW-4. Because 1,4-dioxane was detected at an upstream monitoring point at a greater concentration, it appears that the source in surface water is not the landfill unit, and no further action is warranted. Based on other available information as presented in the report, alternate sources of 1,4-dioxane have been identified in close proximity to and upstream of the landfill. Due to the relatively low horizontal groundwater flow rates for the facility, Waste Industries continues to evaluate the effects of the soil cap and landfill gas vents, which were installed in 2017, on groundwater ,> GOLDER March 26, 2021 NIyRUN fPAaNil quality along the western waste boundary at MW-2 and MW-6. Nested well pair MW-4S and MW-41D 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). 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. Golder will prepare an Assessment Monitoring Work Plan Addendum 3 to address the benzene exceedances in the samples from MW-8 and AMW-1 that were confirmed during this event. The next semi-annual monitoring event is tentatively scheduled for July 2021. ;' GOLDER March 26, 2021 Table of Contents 2013788121.101 1.0 INTRODUCTION............................................................................................................................... 5 1.1 Site Description and Background...................................................................................................5 1.2 Compliance Monitoring History.......................................................................................................5 1.3 Hydrogeologic Setting......................................................................................................................6 2.0 FIELD PROGRAM, MONITORING RESULTS AND DISCUSSION...............................................7 2.1 Visual Inspection Program...............................................................................................................8 2.2 Well Network and Groundwater Elevation Measurements.........................................................8 2.3 January 2021 Groundwater and Surface Water Monitoring Event............................................8 2.4 February 2021 Verification Event...................................................................................................9 2.5 Laboratory Analysis Program..........................................................................................................9 3.0 LABORATORY AND FIELD QA/QC................................................................................................9 4.0 DATA EVALUATION......................................................................................................................10 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons................10 5.0 CONCLUSIONS..............................................................................................................................11 6.0 REFERENCES................................................................................................................................11 TABLES Table 1 Summary of Historical Groundwater Elevation Data in Monitoring Wells Table 2 Summary of Estimated Horizontal Flow Velocities Table 3 Summary of Well Construction Information Table 4 Summary of Detected Constituents in Groundwater Table 5 Summary of Field Parameters in Groundwater Table 6 Summary of Detected Constituents in Surface Water Table 7 Summary of Field Parameters in Surface Water FIGURES Figure 1 Groundwater Contour Map, January 19, 2021 APPENDICES Appendix A Groundwater and Surface Water Sampling Logs Appendix B January 2021 Groundwater and Surface Water Certificate -Of -Analysis, Chain -Of Custodies, and Laboratory Data Reviews GOLDER March 26, 2021 2013788121.101 1.0 INTRODUCTION This report summarizes the monitoring results from the January 19 - 20, 2021 and February 24, 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. 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 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 four surface water sampling points, SW-1 and SW-3, which are upstream from the waste area, and SW-2 and SW-4, which are downstream monitoring points. These points are sampled in conjunction with the groundwater monitoring wells in accordance with the facility's permit. Vinyl chloride and benzene were detected in the sample from downgradient monitoring well MW-2 at concentrations above their respective reporting limits and NC 2L Standards during the July 2014 sampling event. On February 3, 2015, an Alternate Source Demonstration (ASD) was submitted in ,> GOLDER March 26, 2021 2013788121.101 response to this detection that provided evidence that an unidentified source other than the waste unit 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 11 constituents. No additional NC Appendix II constituents were detected in the samples from MW-1 and MW-2 during the February 2016 event and therefore, future events will be analyzed for the NC Appendix I list of constituents. Benzene was detected in the sample from MW-6 at a concentration above the SWSL and NC 2L Standard during the July 2016 sampling event. Based on the July 2016 monitoring results, an Assessment Monitoring Notification and Work Plan Addendum (Addendum) was submitted to the NC DEQ on October 21, 2016 and was approved on October 31, 2016. The approved Addendum stated that assessment monitoring wells, AMW-1 and AMW-2, would be installed downgradient of MW-2 and MW-6, respectively. The Addendum also stated that samples from groundwater monitoring wells MW-6, AMW-1, and AMW-2 would be analyzed for the NC Appendix II list of constituents during the first semi-annual water quality monitoring event of 2017 and during subsequent events MW-6, AMW-1, and AMW-2 would be analyzed for NC Appendix I list of constituents plus detected NC Appendix II constituents. Assessment monitoring wells AMW-1 and AMW-2 were installed in December 2016 in accordance with the Addendum and sampled for the first time during the January 2017 event. As part of ongoing remedial efforts, High Point C&D Landfill completed final soil cap construction for Phases 1 and 2 in July 2017. Additionally, 14 in waste passive landfill gas vents were installed, some of which are located in proximity to areas of known VOC groundwater contamination at groundwater monitoring wells MW-2, MW-6, and MW-8. Based on average horizontal groundwater flow rates for the facility which are relatively low, it could take more than 25 years for groundwater located below the landfill gas vents to travel to the impacted groundwater monitoring wells. High Point C&D Landfill is continuing to evaluate the effects of the recently installed soil cap and landfill gas vents on groundwater quality along the western waste boundary at MW-2, MW-6, and MW-8 prior to evaluating any additional remedies. In response to exceedances of groundwater standards of inorganic constituents, Golder submitted an Assessment Monitoring Work Plan Addendum 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. Well MW-15 was installed on May 9, 2019. 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 ,> GOLDER March 26, 2021 2013788121.101 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 January 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 January 19, 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. The average estimated linear groundwater flow velocity under the waste management unit is approximately 6.8 feet/year, which is generally consistent with previous estimates (Table 2). The range of groundwater flow is expected to vary depending on the hydrogeologic unit in which it occurs. The linear velocity equation above makes the simplified assumptions of a homogeneous and isotropic aquifer. Therefore, this equation represents a likely average value for the uppermost aquifer and does not account for heterogeneous and/or anisotropic conditions that may be present in the uppermost aquifer at the facility. 2.0 FIELD PROGRAM, MONITORING RESULTS AND DISCUSSION Field activities conducted for the January 2021 sampling event are discussed in the following sections. ,> GOLDER March 26, 2021 2013788121.101 2.1 Visual Inspection Program In order to ensure that a potential release is detected at the earliest possible time, the visual inspection program is used by Golder personnel at the High Point C&D Landfill. This program includes physical indicators such as potential water table mounding beneath the waste management unit, physical examination of any stresses in biological communities, visible signs of leachate migration (i.e., Ieachate seeps), unexplained changes in soil characteristics, and any other change to the environment due to the waste management unit. During the January 2021 compliance monitoring event 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 two downstream (SW-2 and SW-4) surface water monitoring points are also monitored and are shown on Figure 1. Monitoring well MW-1 is the facility's background well and is located hydraulically upgradient of the waste disposal area. Monitoring wells MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and AMW-2, are located downgradient of the waste disposal area and represent the facility's downgradient wells. Piezometer P-3 is located upgradient and is currently being sampled during semi-annual water quality monitoring events to establish inorganic background concentrations. Depth -to -water measurements were recorded to the nearest 0.01 foot prior to initiating groundwater purging and sampling activities. The respective groundwater level elevations for this event are presented in Table 1 along with historical water level data. As presented, the data indicate that the hydraulic head level in the uppermost aquifer beneath the facility is fairly consistent, with temporal variation from the long-term average limited to approximately 5 feet (plus or minus). As expected, the range in fluctuation appears to be greater in the upgradient well MW-1, as this well is located in a groundwater recharge area. The range in fluctuation in downgradient compliance wells, which are located near groundwater discharge areas, is much less, presumably due to the stabilizing effect of the hydraulic discharge boundary. 2.3 January 2021 Groundwater and Surface Water Monitoring Event Personnel from Golder visited the facility on January 19 - 20, 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 and to sample surface water monitoring points SW-1, SW-2, SW-3, and SW-4. Depth -to -water measurements were obtained from the network monitoring wells and additional wells (MW-4D and MW-7D) to the nearest 0.01 foot using an electronic water level indicator prior to purging the wells. Compliance and assessment monitoring wells were purged and sampled using low -flow sampling techniques from dedicated bladder pumps. Piezometer P-3 was purged and sampled using low -flow sampling techniques from a 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 ,,,> GOLDER March 26, 2021 2013788121.101 purge rate was matched to the yield of the monitoring well, as determined by continuously monitoring the depth -to -water, not allowing the purge rate to exceed 350 milliliters per minute. Purging was continued until stabilization was indicated by the field parameters. Prior to sampling, the laboratory -supplied sample containers were prepared. Each sample container was labeled with the sample identification number, sampling personnel, date and time of sample collection, project name and number, and requested chemical analyses. The required groundwater samples were collected directly from the bladder pump discharge lines into the labeled, laboratory - supplied, pre -preserved sample containers after purging was completed based on stabilization of field parameters. 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 February 2021 Verification Event Golder personnel visited the facility on February 24, 2021, to re -sample MW-8 and AMW-1 to verify the concentrations of benzene detected in samples collected during the January 2021 water quality monitoring event. Samples were collected utilizing techniques as described above. After collection, the samples were placed in a cooler on ice under chain -of -custody control. As presented, copies of the sampling logs are included in Appendix A. Included on the logs is a description of the sampling equipment, sampling method, field observations, location, and water quality measurements. 2.5 Laboratory Analysis Program The January 1 9- 20, 2021 and February 24, 2021 groundwater and surface water samples were delivered via courier to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of -custody control for analysis. As presented, the January 2020 groundwater samples from MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and AMW-2 were analyzed for the NC Appendix I list of constituents plus the C&D indicator parameters specific to 15A NCAC 13B .544(a)(1)(D), tetrahydrofuran, and 1,4-dioxane. The surface water samples SW-1, SW-2, SW-3 and SW-4 at the facility were analyzed for the NC Appendix I list of constituents plus tetrahydrofuran and 1,4-dioxane. P-3 was analyzed for NC Appendix I metals plus mercury, manganese, and iron. The samples were received at the laboratory on January 21, 2021, and February 25, 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 January 2021 sampling event. ENCO analyzed the field blank for the NC Appendix I list of constituents plus iron; manganese; mercury; 1,4-dioxane; and tetrahydrofuran. In addition to the field blank, a laboratory -prepared trip blank accompanied the volatile sample containers to and from the laboratory and was analyzed for NC Appendix I VOCs plus 1,4-dioxane and tetrahydrofuran. ENCO analyzed the laboratory blanks for the ,> GOLDER March 26, 2021 NIyRUN fPAaD]il same parameters analyzed for the groundwater samples. A review of the laboratory data was performed by Golder personnel and is included in Appendix B. Based on data reviews performed by Golder, acetone in MW-2 and AMW-2 and manganese in MW-1 are considered blank -qualified. 4.0 DATA EVALUATION 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons Analytical results and field parameters for the January 2021 groundwater samples are summarized in Tables 4 and 5 along with available historical data. As presented in Table 4, Three NC Appendix I inorganic constituents were detected at quantifiable concentrations above their applicable groundwater standards during the January 2021 event: barium at MW-6; cobalt at MW-6, AMW-1, and AMW-2; and chromium at MW-8. Cobalt in the samples from upgradient well P-3 and downgradient wells MW-2, MW-5, and MW-8; thallium in the samples from upgradient wells MW-1 and P-3 and downgradient wells MW-2, MW-3, MW-4S, MW-7S, MW-8, AMW-1 and AMW-2; and vanadium in samples from MW-5 and MW-7S were detected at estimated concentrations below the practical quantitation limit (PQL), but above their respective groundwater standards, as they have been previously. 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. 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 alternate source demonstrations (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 P3 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, AMW-1 and AMW-2 during the January 2021 event and concentrations were confirmed in AMW-1 and MW-8 during the February 2021 verification event. Additionally, 1,4-dioxane was detected in the samples from MW-2, 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 DEQ memorandum and is not part of the facility permit -required testing. Generally, concentrations of low-level volatile organic constituents are consistent with historical data. 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-41D 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- ' GOLDER 10 March 26, 2021 2013788121.101 standard concentrations of benzene detected at MW-2, MW-6, MW-8, and AMW-2 are unlikely to extend off site. Analytical results and field parameters for the January 2021 surface water samples are summarized in Tables 6 and 7 along with available historical data. No NC Appendix I constituents were reported at concentrations above the applicable surface water standards during the event. 1,4-dioxane was reported at quantifiable concentrations above the applicable surface water standard in upstream monitoring points SW-1 and SW-3 and downstream surface water monitoring points SW-2 and SW-4. 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 point at a greater concentration as well as potential off -site upstream sources, it appears that the source in surface water is not the landfill unit, and no further action is warranted. 5.0 CONCLUSIONS During the January 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 fourth of ten planned sampling events. The facility will continue monitoring in accordance with the requirements of the Assessment Monitoring Program as outlined in Title 15A NCAC 13B.0545, the Work Plan, and Addendums. Golder will prepare an Assessment Monitoring Work Plan Addendum 3 to address the benzene exceedances in the samples from MW-8 and AMW-1 that were confirmed during this event. The next groundwater monitoring event is tentatively scheduled for July 2021. 6.0 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 ll; 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 United States Environmental Protection Agency, November 2003. Guidance for Developing Ecological Soil Screening Levels. ,> GOLDER 11 March 26, 2021 Signature Page Golder Associates NC, Inc. David "Dusty" Y. Reedy II, PG Senior Hydrogeologist Rachel P. Kirkman, PG Principal and Senior Consultant Engineering Lic. No. C-2862/Geology Lic. No. C-399 2013788121.101 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. Golder and the G logo are trademarks of Golder Associates Corporation. c:\users\dreedy\golder associates\2013788121,gfl 2021 high point env mgt nc - 5 technical work\phase 100 wqm\1st sa wqm\200 deliverables\252 final reports issued\2013788121-101-r- rev0-1stsa_2021_hp_wgmr.docx ,,,> GOLDER 12 Tables March 2021 04#1iBY11-13PAR[r1i1 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 1 6.41 1 748.44 1 16.22 1 739.26 1 5.51 1 728.25 1 0.00 1 734.23 1 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 MEAN 18.86 794.31 7.24 747.61 18.03 737.45 6.35 727.41 0.03 734.20 11.92 735.93 8.47 726.76 29.90 731.30 30.98 732.29 4.29 758.31 5.69 747.59 6.28 724.29 5.41 784.65 MAXIMUM 23.20 796.97 10.35 749.49 23.55 740.27 8.91 729.07 0.13 734.23 13.47 741.04 11.10 730.04 32.95 738.90 34.04 736.03 9.54 760.58 6.42 748.48 7.69 726.93 5.95 785.11 MINIMUM 16.20 789.97 5.36 744.50 15.21 731.93 4.69 724.85 0.00 734.10 7.52 734.36 5.19 724.13 22.30 728.25 27.24 729.23 2.02 753.06 4.80 746.86 3.64 722.88 4.95 784.11 Notes: 1. TOC = top of casing 2. ft AMSL = feet above mean sea level 3. Monitoring well MW-1 is the facility background well. 4. --- = no data available GOL❑ER 1 of 1 March 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 2013788121.101 J nuary 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 703 ----'-- 0.0427 0.09 1.37E-05 6.72 790------- i 2 SW 1448 ------- 740------- 0.0345 0.09 1.37E-05 5.44 i 3 S 754 --""' 750 ------ 0.0530 0.09 1.37E-05 8.35 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 10f1 March 2021 2013788121.101 TABLE 3 Summary of Well Construction Information Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Well & Piezometer Number Date Installed Casing Diameter (inches) Coordinates Well Elevations Total Depth Drilled Screened Interval Lithology of Screened Interval Status Ground Surface TOC Northing Easting Depth (ft bgs) Elevation (ft AMSL) Depth (ft bgs) Elevation (ft AMSL) ft AMSL from to from to MW-1 09/29/03 2 802679.07 1727481.97 809.79 813.17 30.0 779.79 15.0 30.0 794.79 779.79 Bedrock Compliance Well MW-2 09/30/03 2 802512.12 1726072.14 752.30 754.85 16.5 735.80 6.5 16.5 745.80 735.80 PWR/Bedrock Compliance Well MW-3 10/02/03 2 802153.76 1725818.69 752.65 755.48 27.0 725.65 12.0 27.0 740.65 725.65 PWR/Bedrock Compliance Well MW-4S 02/20/02 2 801841.41 1725570.04 731.60 733.76 20.0 711.60 5.0 20.0 726.60 711.60 PWR/Bedrock Compliance Well MW-4D 02/19/02 2 801847.04 1725576.62 731.88 734.23 80.0 651.88 60.0 80.0 671.88 651.88 Bedrock Water Levels Only MW-5 02/19/02 2 801517.31 1726103.70 741.16 743.44 20.0 721.16 5.0 20.0 736.16 721.16 Saprolite/PWR/Bedrock Compliance Well MW-6 12/17/02 2 801625.07 1725754.72 733.53 735.23 15.5 718.03 8.5 15.5 725.03 718.03 PWR/Bedrock Compliance Well MW-7S 07/13/06 2 801358.30 1726660.50 761.20 763.52 45.0 716.20 30.0 45.0 731.20 716.20 PWR Compliance Well MW-7D 07/11/06 2 801341.60 1726657.80 761.24 763.27 70.0 691.24 60.0 70.0 701.24 691.24 Bedrock Water Levels Only MW-8 07/05/06 2 802748.00 1726285.20 760.57 762.60 25.0 735.57 15.0 25.0 745.57 735.57 Bedrock Compliance Well AMW-1 12/05/16 2 802509.49 1726046.32 750.82 753.28 15.0 735.82 5.0 15.0 745.82 735.82 Bedrock Assessment Well AMW-2 12/05/16 2 801580.59 1725717.37 728.19 730.57 15.0 713.19 5.0 15.0 723.19 713.19 Bedrock Assessment Well P-3 02/12/02 2 802083.27 1727807.85 787.62 790.06 25.0 762.62 10.0 25.0 777.62 762.62 Saprolite/PWR Background Piezometer Notes: 1. All elevations are referenced to mean sea level; depths are referenced to ground surface. 2. AMSL = above mean sea level 3. bgs = below ground surface 4. TOC = top of casing 5. PWR = partially weathered rock 6. MW-4S and MW-41D 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-71D were installed as piezometers P-30S and P-30D, respectively, on July 13 and 11, 2006. 10. MW-8 was installed as piezometer P-23 on July 5, 2006. 10. AMW-1 and AMW-2 were installed as assessment monitoring wells on December 5, 2016. GOLDER 1 of 1 March 2021 �r11 TABLE 4 Summary of Detected Constituents in Groundwater Waste Industries of Nigh Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina SWS Upgrsdlent Downgradlent Parameter Reporting Sample Data MDL MRL Reporting Blank, MW-1 P-3 MW-2 MW-7 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Units Anfimony 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 NO NO NO NO ND ND - - 0.461 J ug/L 01/14/13 -- - 6 ND - 0.672 J NO ND ND ND ND ND - - ND ug/L 07/09/13 -- - 6 0.221 J - 0.767 J NO NO 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 O8112/15 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 NO NO NO NO ND ND ND ND ug/L 01/19/21 1 0.74 2.0 ND ND I ND ND ND ND ND ND ND ND ND ND Arsenic ug/L 10/08/03 - -- 10 ND - ND ND ND ND ND - - - - ND NC 2L=10 ug/L ug/L 01/23/04 - - 10 ND - ND ND ND ND ND - - - - ND EPA MCL=10 ug/L ug/L 07/08/04 -- - 10 ND - ND ND ND ND ND - - - - ND ug/L 01/25/05 -- - 10 ND - ND ND ND ND ND - - - - ND ug/L 07/06/05 -- - 10 ND - NO NO NO 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 - NO ND ND ND NO ND ND - - 2.1 ug/L 07/17/08 -- - 10 ND - NO 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 NO ND -- -- ND ug/L O8/12115 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 uglL 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 NO NO NO ND ug/L 07/07/20 7.6 10 - ND NO NO NO ND NO NO ND ND ND ND ND ug/L 01/19/21 1 7.6 10 ND ND ND ND ND ND ND ND ND ND ND ND Barium ug/L 10/08/03 - - 500 ND - ND ND ND ND ND - - - - ND NC 21 700 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 NO - ND ND NO ND NO - - - - NO 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 - - NO ug/L 01/14/09 -- - 100 101 - 152 38.3 J 79.7 J 68.0 J 93.9 J - - - - NO 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 0l/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 1.1 10 38.3 57.3 657 39.0 115 36.4 814 417 174 417 199 ND Beryllium ug/L 01/16/07 -- - 1 ND - NO NO 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 - O.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 -- NO 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 NO NO NO NO 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 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 _ -- 1 ND .. ND ND ND NO NO -- -- -- -- 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 uglL 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 NO NO ND NO - - ND ug/L 07/09/13 -- - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 01/30/14 -- - 1 ND - NO NO 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 07/26118 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 NO NO NO NO NO NO 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 I ND GOLDER of7 March 2021 TABLE 4 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 Date MDL MRL SWS Reporting Upgradienl Downgradierd Blanks MW-1 PJ MW-2 MWJ MW-0S MW-5 MW-8 MW-7S MWA AMW-1 AMW-2 Units Sample Limit Chromium ug/L 10/08/03 - -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L - 10 u u - -- 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 uglL 01/25/05 - - 10 ND -- ND ND ND ND ND - - - - ND uglL 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 0721/11 -- - 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 01/2920 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 -- -- -- u /L 01/19/21 1 1.4 10 ND 1.42 J 1 7.12 J 5.43 J ND ND 8.43 J 1.42 J 11.7 5.94 J 3.15 J ND Cobalt ug/L 01/16/07 - -- 10 ND -- 14.6 ND ND 3.0 J 5.9 J 3.9 J ND -- -- ND NC 2L IMAC = 1 ug/L ug/L 07/02/07 - -- 10 ND -- 27.4 ND ND 4.7 J ND 6.0 J ND -- -- ND No EPA MCL ug/L 01/30/08 - -- 10 ND -- 11.6 ND ND 5.6 J ND ND ND -- -- ND ug/L 07/17/08 - -- 10 ND -- 27.6 ND ND 1.4 J ND ND ND -- -- ND ug/L 01/14/09 - -- 10 ND -- 9.4 J ND 1.2 J 4.1 J 13.0 -- -- -- -- ND ug/L - -- 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 uglL 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 uglL 07/11/17 1.1 - 10 ND - 10.7 ND ND ND 10.4 ND 6.26 J 5.03 J 11.1 ND (Dissolved) u9IL 07/11/17 1.1 -- 10 -- - -- .. .. .. .. .. .. -- 10.4 .. uglL 01/09/18 1.1 -- 10 ND - 18.8 J ND 3.92 J 2.68 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 01/19/21 1 1.4 10 1 1 ND 2.25 J 8.19 J ND ND 1.62 J 13.9 ND 6.62 J 16.5 10.3 ND Copper ug/L 01/16/07 - -- 10 14.5 -- ND ND 4.60 J ND ND 12.3 ND -- -- ND NC 2L=1000 ug/L ug/L 07/02/07 - -- 10 8.8 J - ND ND ND ND ND 16.3 3.4 J -- - ND EPA MCL=1300 ug/L ug/L 01/30/08 - -- 10 3.00 J -- ND ND 1.90 J ND ND 2.70 J 5.30 J -- -- ND J ug/L 07/17/08 - -- 10 ND - ND ND ND ND ND ND ND - - ND ug/L 01/14/09 - -- 10 ND -- ND ND ND ND ND - - - - ND ug/L 07/16/09 - -- 10 ND - ND ND ND ND ND - - - - 6.42 ug/L 01/04/10 - -- 10 ND - ND ND ND ND ND ND ND - - ND ug/L 07/01/10 - - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 01/13/11 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 07/21/11 -- - 10 ND - ND ND 2.72 B ND ND ND ND - - 1.65 ug/L 01/16/12 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 07/09/12 -- - 10 ND - ND ND ND ND ND ND ND - - ND J ug/L 01/14/13 -- - 10 ND - ND 1.67 J ND ND ND ND ND - - ND ug/L 07/09/13 -- - 10 1.63 J - ND ND 1.93 J ND ND ND ND - - ND ug/L 01/30/14 -- - 10 ND - ND ND ND ND ND ND 2.73 J - - ND ug/L 07/08/14 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 03/03/15 1.6 - 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 02/17116 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 S 3.26 S 1.97 S 2.25 B 3.25 B 6.10 S 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 uglL 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 uglL 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 Lead ug/L 10/08/03 -- - 10 ND - ND ND ND ND ND - - - - ND NC 2L=15 ug/L ug/L 01/23/04 -- - 10 ND - ND ND ND ND ND - - - - ND EPA MCL=15 ug/L' ug/L 07/08/04 - -- 10 ND -- ND ND ND ND ND -- -- -- -- ND uglL 01/25/05 - -- 10 ND - ND ND ND ND ND -- -- -- -- ND uglL 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 J 4.5 J ND - - ND ug/L 07/02/07 - - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 01/30/08 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 07/17/08 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 01/14/09 -- - 10 ND - ND ND ND ND ND - - - - ND ug/L 07/16/09 -- - 10 ND - 3.10 J ND ND ND ND - - - - ND ug/L 01/04/10 -- - 10 ND - 4.04 B 1.46 B ND 2.76 B 2.08 B ND ND - - 1.24 ug/L 07/01/10 -- - 10 ND - 2.61 J ND ND 2.84 J ND ND ND - - ND ug/L 01/13/11 -- - 10 ND - 4.02 J ND ND ND ND ND ND - - ND ug/L 07/21/11 -- - 10 ND - 3.08 J ND ND ND ND ND ND - - ND ug/L 01/16/12 -- - 10 ND - 4.54 J ND 2.45 J 6.10 J ND ND 1.90 J - - ND ug/L 07/09/12 - - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 01/14/13 -- - 10 ND - 4.05 J ND ND ND ND ND ND -- - ND ug/L 07/09/13 - - 10 ND - ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- - 10 ND - 3.42 J ND ND 4.35 J ND ND ND -- -- ND ug/L 07/08/14 - - 10 ND - ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 2.1 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L O8/12/15 3.1 - 10 ND -- 5.51 J ND ND ND 3.62 J 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 uglL 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 J 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 0726/18 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 01/2920 3.1 10 - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/0720 3.1 10 - ND ND ND ND ND ND ND ND ND ND ND ND ug/L 0111921 1 3.1 10 ND ND I ND ND ND ND ND ND ND ND ND ND Mercury ug/L 10/08/03 - -- 0.5 IN -- 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 - -- 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 uglL 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 0726/18 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 07/0720 0.15 0.20 -- 0.229 0.274 ND ND ND ND ND ND ND ND ND ND ug/L 1 01/19/21 1 0.15 1 0.20 1 1 ND ND I ND ND ND ND ND ND ND ND ND I ND GOLDER 2 of March 2021 TABLE 4 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 Date MDL MRL SWS Reporting Upgradienl Downgradierd Blanks MW-1 PJ MW-2 MWJ MW-0S MW-5 MW43 MW-7S MWA AMW-1 AMW-2 Units Sample Limit Nickel ug/L 01/16/07 - -- 50 3.8 J -- ND ND ND ND ND 17.2 J ND -- -- ND NC 21 =100 ug/L uglL 07/02/07 - - 50 ND -- 3.0 J ND ND ND ND 19.0 J ND -- - ND No EPA MCL ug/L 01/30/08 - -- 50 2.5 J -- 3.6 J 2.4 J 3.7 J 6.5 J ND 6.0 J 3.3 J -- -- ND uglL 07/17/08 - - 50 2.1 J -- ND ND ND 3.8 J ND 2.3 J ND - - ND ug/L 01/14/09 - -- 50 2.4 J -- ND 5.1 J 5.3 J ND ND -- -- -- -- ND uglL 07/16/09 - - 50 0.790 B -- 4.11 B 1.47 B 0.988 B 1.04 B 1.05 B - - - - 3.80 ug/L 01/04/10 - -- 50 ND -- 2.59 J ND ND 3.20 J ND ND ND - - ND ug/L 07/01/10 - - 50 ND - ND ND ND ND 2.29 J ND ND - - ND ug/L 01/13/11 - - 50 ND - ND ND ND ND 5.20 J ND ND - - ND ug/L 07/21/11 - - 50 ND - ND ND 2.44 J ND 5.56 J ND ND - - ND ug/L 01/16/12 -- - 50 ND - ND ND ND ND 2.77 J ND ND - - ND ug/L 07/09/12 - - 50 ND - ND ND ND ND 6.24 J ND ND - - ND ug/L 01/14/13 -- - 50 ND - ND 2.05 J ND 4.29 J 3.86 J ND ND - - ND ug/L 07/09/13 - - 50 ND - 2.37 J ND ND ND 4.34 J 2.81 J 3.27 J - - ND ug/L 01/30/14 -- - 50 ND - ND ND 1.86 J ND 5.05 J ND 5.44 J - - ND ug/L 07/08/14 -- - 50 ND - 2.85 J 1.86 J 6.10 J ND 4.71 J ND 3.36 J - - ND ug/L 03/03/15 1.8 - 50 ND - 3.01 J ND ND ND 6.41 J ND 3.19 J - - ND ug/L O8/12/15 1.8 - 50 ND - 2.73 J ND ND ND 5.84 J ND 3.37 J - - ND ug/L 02/17/16 1.8 - 50 ND - ND 2.27 J ND ND 3.23 J ND 5.44 J - - 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 J 3.14 J 4.87 J ND 2.57 J ND ug/L 07/11/17 2.2 - 50 ND - ND ND ND ND ND ND ND ND 2.60 J ND ug/L 01/09/18 2.2 - 50 ND - ND 2.41 J 5.17 J ND 4.45 J 2.42 J 2.52 J ND 3.86 J ND ug/L 07/26/18 2.2 10 - 2.41 J - 4.88 J 2.42 J ND ND 5.29 J 3.06 J 7.98 J 2.62 J 5.35 J ND ug/L 01/30/19 2.2 10 - 2.43 J - ND 2.41 J ND ND 5.79 J 2.42 J 7.83 J 2.41 J 2.49 J ND ug/L 07/10/19 2.2 10 - ND 2.35 J 4.93 J ND ND ND 7.14 J 3.49 J 6.67 J ND 4.45 J ND ug/L O1/29/20 2.2 10 - ND ND 3.71 J 2.56 J ND ND 7.23 J 4.18 J 8.97 J 3.39 J 2.90 J ND ug/L 07/07/20 2.2 10 -- ND ND ND 2.85 J ND ND 3.09 J 2.29 J 2.25 J 2.54 J 2.96 J ND ug/L 01/19/21 2.2 10 2.64 J 2.74 J I ND 3.25 J ND ND 7.91 J 6.23 J 5.78 J 4.18 J 3.36 J ND Selenium ug/L 10/08/03 - -- 20 ND -- ND ND ND ND ND -- -- -- -- ND INC 21 =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 - -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L - -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 - -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 - -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 - -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 - -- 10 ND -- ND ND ND ND 2.0 J ND ND -- -- ND uglL 07/17/08 - - 10 ND -- ND ND ND ND ND ND ND - - ND ug/L 01/14/09 - -- 10 ND -- ND 4.0 J ND ND 3.1 J -- -- -- -- ND uglL 07/16/09 - - 10 ND -- ND ND ND ND ND - - - - ND uglL 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 uglL 01/13/11 - - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 07/21/11 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 01/16/12 - - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 07/09/12 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 01/14/13 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 07/09/13 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 01/30/14 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 07/08/14 -- - 10 ND - ND ND ND ND ND ND ND - - ND ug/L 03/03/15 0.91 - 10 ND - 1.55 J ND ND ND ND ND ND -- -- ND ug/L 08/12/15 5.0 - 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 u /L 01/19/21 6.2 10 ND ND ND ND ND ND ND ND ND ND ND ND ilver 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 - -- 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 O8/12115 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 O1/09/18 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 1.9 10 1 ND ND I ND ND ND ND ND ND ND ND ND ND hallium ug/L 01/16/07 - -- 5.5 ND -- 0.048 J ND ND ND ND ND ND -- -- ND C 21 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 PA 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 OA89 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 - 6.5 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 u /L 01/19/21 1 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 anadium ug/L 01/16/07 -- - 25 7.5 J - ND ND 4.4 J ND ND 34.4 ND - - ND C 21 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 o 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 uglL 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 uglL 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 uglL 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 O8112/15 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 uglL 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 ugIL 1 01/19/21 1 1.4 1 10 1 1 ND ND I ND ND ND 1.48 J ND 7.09 J ND ND ND ND GOLDER 3 of March 2021 TABLE 4 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 Date MOIL MRL SWS Reporting Upgradienl Doemgndierd Blanks MW-1 PJ MW-2 MWJ MW4S MW-5 MW-0 MW-7S MWA AMW-1 AMW.2 Units Sample Limit 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 NO - - NO ug/L 01/16/12 - - 10 ND - ND ND ND NO NO NO NO - - NO ug/L 07/09/12 -- - 10 NO - NO NO NO NO 5.67 J NO NO - - NO ug/L 01/14/13 - - 10 NO - NO NO NO NO NO NO NO - - NO ug/L 07/09/13 -- - 10 NO - NO NO NO NO 4.35 J NO 3.98 J - - NO ug/L 01/30/14 -- - 10 3.97 J - 4.83 J 4.13 J 5.51 J NO 5.86 J NO 7.30 J - - NO ug/L 07/08/14 -- - 10 NO - NO 3.86 J NO 9.69 J NO NO 5.50 J - - NO ug/L 03/03/15 3.8 - 10 NO - NO NO 4.77 J NO NO NO NO - - NO ug/L 08/12/15 3.8 - 10 NO - 4.12 J NO 8.46 J NO 15.8 NO 9.95 J - - NO ug/L 02/17/16 3.8 - 10 60.0 - 5.54 J NO 25.8 6.06 J NO NO 4.75 J - - NO ug/L 07/14/16 4.4 - 10 NO - NO NO NO NO NO NO NO - -- NO ug/L 01/11/17 4.4 - 10 NO - NO NO NO NO NO NO 6.11 J NO NO NO ug/L 07/11/17 4.4 - 10 NO - 5.01 J NO NO NO NO NO NO NO NO NO ug/L 01/09/18 4.4 - 10 ND -- NO NO 4.68 J NO NO NO 6.05 J NO NO NO ug/L 07/26/18 4.4 10 -- 4.43 J -- 4.90 J ND 7.68 J 4.54 J ND ND ND NO ND ND ug/L 01/30/19 4.4 10 -- ND -- NO NO NO 8.31 J NO NO NO NO NO NO ug/L 07/10/19 4.4 10 -- 5.55 J NO 6.70 J ND 4.62 J ND ND ND ND ND ND ND ug/L 01/29/20 4.4 10 -- NO NO 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 01/19/21 1 4.4 10 1 ND ND I ND ND ND ND ND ND ND ND ND ND Iron ug/L 01/16/07 - -- -- 2630 -- 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 NO 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 -- -- NO 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 -- -- NO ug/L 07/08/14 - - 300 NO -- 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 526 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 3"0 5070 ND ug/L 01/29/20 22 50 -- ND ND 13500 432 538 45700 7690 24.2 J 1010 10500 2620 NO ug/L 07/07/20 22 50 -- 117 162 36100 355 575 33600 8510 80.3 4250 7760 4340 ND u /L 01/19/21 1 22 50 1 1 ND 177 22800 291 1720 40200 10100 NO 5460 14900 4970 NO Manganese ug/L 01/16/07 - -- -- 50.6 -- 6160 4.7 J 39A 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 11A 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 651 - -- -- 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 20A 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 -- 50 680 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 16.1 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 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 Acetone ug/L 01/09/06 - -- 100 ND -- ND ND ND ND ND - -- -- -- ND NC 2L=6000 ug/L ug/L 07/12/06 - -- 100 ND -- ND ND ND ND ND -- -- -- -- ND No EPA MCL ug/L 01/16/07 - -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 - -- 100 ND -- ND ND ND ND ND ND ND -- -- 1.2 ug/L 01/30/08 - -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 - -- 100 ND -- NO NO NO NO NO NO NO -- -- NO ug/L 01/14/09 - - 100 NO - ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 - -- 100 ND -- NO NO NO NO NO -- -- -- -- NO ug/L 01/04/10 - - 100 NO - ND ND ND NO NO NO NO -- -- 7.1 ug/L 07/01/10 - -- 100 ND -- NO NO NO NO NO ND ND -- -- ND ug/L 01/13/11 - - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 07/21/11 -- - 100 ND - NO NO NO NO NO NO NO - - NO ug/L 01/16/12 - - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 07/09/12 -- - 100 NO - NO NO NO NO 5.6 J NO NO - - NO ug/L 01/14/13 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 07/09/13 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 01/30/14 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 07/08/14 -- - 100 NO - 9.8 J NO NO 1.3 J 2.1 J NO 1.9 J - - NO ug/L 03/03/15 1.2 - 100 NO - 4.4 J NO NO 2.5 J NO NO NO - - NO ug/L 08/12/15 1.2 - 100 NO - NO NO NO NO 11 J NO NO - - NO ug/L 02/17/16 1.2 - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 07/14/16 10 - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 01/11/17 10 - 100 NO - NO NO NO NO NO NO NO NO ND 11 J ug/L 07/11/17 10 - 100 ND - NO NO ND ND 16 J ND ND ND NO ND ug/L 01/09/18 10 - 100 ND - ND ND NO ND ND NO NO NO NO 17 J ug/L 07/26/18 10 20 -- ND -- 11 J NO NO NO 14 J NO NO ND NO ND ug/L 01/30/19 10 20 -- ND -- ND NO NO NO 17 J NO NO NO NO ND ug/L 07/10/19 10 20 -- NO -- 36 NO NO NO 13 J NO NO ND NO ND ug/L 01/29/20 10 20 -- NO -- 11 J NO NO NO 16 J ND ND 12 J NO NO ug/L 07/07/20 10 20 -- NO -- 28 NO NO NO 12 J ND ND ND ND ND u /L 01/19/21 1 10 20 ND 1 19 B NO NO NO NO ND ND ND 20 B 25 Benzene ug/L 01/09/06 - -- 5 IN -- 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 01/16107 - -- 3 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 - -- 1 NO -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 - -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 - -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 - -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 - -- 1 ND -- ND ND ND ND ND -- - - - ND ug/L 01/04/10 - -- 1 ND -- ND ND ND ND ND ND ND - - ND ug/L 07/01/10 -- - 1 ND - ND ND ND ND NO NO NO - - NO ug/L 01/13/11 -- - 1 ND - 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 - 0.78 J NO NO NO NO NO NO - - NO ug/L 01/14/13 -- - 1 NO - 0.72 J NO NO NO NO NO NO - - NO ug/L 07/09/13 -- - 1 NO - 0.57 J 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 - 1.6 NO NO NO NO NO NO - - NO ug/L 03/03/15 0.15 - 1 NO - 0.79 J NO NO NO ND NO 0.49 J - - NO ug/L O8112/15 0.15 - 1 NO - 2.0 NO NO NO NO NO NO - - NO Verification Even ug/L 09/28/15 0.15 - 1 - - 2.6 - - - - - - - - NO ug/L 02/17/16 0.15 - 1 NO - 0.98 J NO NO NO 0.63 J NO NO - - NO ug/L 07/14/16 0.15 - 1 NO - 1.7 NO NO NO 1.0 NO 0.44 J - - NO Verification Even ug/L 08/04/16 0.15 - 1 - - 1.0 - - - 1.1 - - - -- NO ug/L 01/11/17 0.15 - 1 NO - NO NO NO NO 0.61 J NO NO NO NO NO ug/L 07/11/17 0.15 - 1 NO - NO NO NO NO 1.7 NO NO ND NO NO ug/L 01/09/18 0.15 -- 1 NO -- NO NO NO NO 2.1 NO 0.63 J ND 1A NO Verification Even ug/L 03/16/18 0.15 -- 1 -- -- -- -- -- -- -- -- -- -- NO NO ug/L 07/26/18 0.15 1.0 -- ND -- 2.8 NO NO NO 1.7 NO 1.2 ND 1.2 NO Verification Even ug/L 09/10/18 0.15 1.0 -- -- -- 2.2 -- -- -- -- -- NO -- NO ND ug/L 01/30/19 0.15 1.0 -- ND -- 1.1 NO NO ND 3.6 NO 0.86 J 0.40 J 0.72 J ND ug/L 07/10/19 0.15 1.0 -- ND -- 3.3 NO NO ND 4.5 ND ND ND 1.8 ND Verification Even ug/L 10/04/19 0.15 1.0 -- ND -- - -- -- -- - -- -- -- 2.7 IN ug/L 01128-0 0.15 1.0 -- ND -- 0.57 J ND ND ND 2.2 IN 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 NO 1.7 1.2 1.0 ND Vanfcation Even u 02124/21 0.15 1.0 -- ND -- - -- -- -- - -- 1.5 1.6 -- I ND GOLDER 4 of March 2021 �r11 TABLE 4 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 Date MDL MRL SWS Reporting Upgradienl Downgndierd Blanks MW-1 PJ MW-2 MWJ MW-0S MW-5 MW-S MW-7S MWA AMW-1 AMW-2 Units Sample Limit 1,1-Dichlomethane uglL 01/09/06 - -- 5 ND -- ND ND ND ND ND -- -- ND NC 2L=6 ug/L ugd. 07/12/06 - - 5 ND -- ND ND ND ND ND -- -- ND No EPA MCL ug/L 01/16/07 - -- 5 ND -- ND ND ND ND ND ND ND ND ugd. 07/02/07 - -- 5 ND -- ND ND ND ND ND ND ND ND ug/L 01/30/08 - -- 5 ND -- ND ND ND ND ND ND ND ND ugd. 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 ugd. 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 ugd. 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 ugd. 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 ugd. 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 ugd. 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 uglL 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 uglL O8/12/15 - - 5 ND -- ND ND ND ND ND ND ND ND ug/L 02/17/16 - -- 5 ND -- ND ND ND ND ND ND ND ND uglL 07/14/16 - - 5 ND -- ND ND ND ND ND ND ND ND ug/L 01/11/17 - -- 5 ND -- ND ND ND ND ND ND ND ND ND ND uglL 07/11/17 - -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09118 - -- 5 ND -- ND ND ND ND ND ND ND ND ND ND uglL 07/26/18 0.13 1.0 -- ND -- ND ND ND ND ND ND 0.53 1 ND ND ND ug/L 01/30/19 0.13 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND uglL 07/10/19 0.13 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.13 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND uglL 07/07/20 0.13 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND 01/19/21 1 0.13 1.0 ND I ND ND ND ND ND 0.54 1 ND ND ND ND 1,2-Dichlomethane ug/L 01/09/06 - -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L=0.4 ug/L ug/L 07/12106 - -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL=S ug/L uglL 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 ugd. 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 ugd. 01/14/09 - - 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 - -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ugd. 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 ugd. 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 ugd. 01/16/12 - - 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 - -- 1 ND -- 0.57 J ND ND ND ND ND ND -- -- ND ugd. 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 ugd. 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 ugd. 03/03/15 0.21 - 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L O8/12/15 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugd. 02/17/16 0.21 - 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ugd. 01/11/17 0.21 - 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ugd. 01/09/18 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.21 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND uglL 01/30/19 0.21 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.21 1A -- ND -- ND ND ND ND ND ND ND ND ND ND ugd. 01/29/20 0.21 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.21 1A -- ND -- ND ND ND ND ND ND ND ND ND ND 01/19/21 0.21 1.0 ND ND ND ND ND ND ND ND ND ND ND cis-1,2-Dichlomethene uglL 01/09/06 - -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L=70 ug/L ug/L 07/12/06 - - 5 ND - ND ND ND ND ND -- -- -- -- ND EPA MCL=70 ug/L ug/L 01/16/07 - -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ugd. 07/02/07 - - 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 - -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ugd. 07/17/08 - - 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14109 - -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ugd. 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 ugd. 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 ugd. 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 ugd. 07/09/12 - - 5 ND -- 0.87 1 ND ND ND ND ND ND -- -- ND ug/L 01/14/13 - -- 5 ND -- 0.83 1 ND ND ND ND ND ND -- -- ND ugd. 07/09/13 - - 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 - -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 - -- 5 ND -- 0.69 1 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.15 -- 5 ND -- ND ND ND ND ND ND 0.47 1 - - ND uglL 08/12/15 0.15 - 5 ND -- 0.57 1 ND ND ND ND ND ND - - ND ug/L 02/17/16 0.15 -- 5 ND -- ND ND ND ND ND ND ND - - ND ug/L 07/14/16 0.15 - 5 ND - ND ND ND ND ND ND ND - - ND ug/L 01/11/17 0.15 - 5 ND - ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.15 - 6 ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.15 - 5 ND - ND ND ND ND ND ND 0.66 1 ND ND ND ug/L 0726/18 0.15 1.0 - ND - ND ND ND ND ND ND 1.0 ND ND ND ug/L 01/30/19 0.15 1.0 - ND - ND ND ND ND ND ND 0.81 1 ND ND ND ug/L 07/10/19 0.15 1.0 - ND - ND ND ND ND ND ND 0.72 1 ND ND ND ug/L 01/29/20 0.15 1.0 - ND - ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.15 1.0 - ND - ND ND ND ND ND ND ND ND ND ND u L 01/19/21 1 0.15 1.0 ND I ND ND ND ND ND ND 1.3 ND ND ND Ethylbemmne ug/L 01/09/06 - - 5 ND ND ND ND ND ND -- -- -- -- ND NC 2L=600 ug/L ug1L 07/12106 - -- 5 ND -- ND ND ND ND ND - - - - ND EPA MCL=700 ug/L ug/L 01/16/07 - -- 5 ND -- ND ND ND ND ND ND ND - - ND ug/L 07/02/07 -- - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 01/30/08 - - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 07/17/08 -- - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 01/14/09 -- - 1 ND - ND ND ND ND ND - - - - ND ug/L 07/16/09 -- - 1 ND - ND ND ND ND ND - - - - ND ug/L 01/04/10 -- - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 07/01/10 -- - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 01/13/11 - - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 07/21/11 -- - 1 ND - ND ND ND ND ND ND ND -- -- ND ug/L O1/16112 - - 1 ND - ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 - -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 - - 1 ND - ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 - -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 - -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 - -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.13 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L O8/12115 0.13 -- 1 ND -- 0.46 1 ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.13 -- 1 ND - ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.13 -- 1 ND -- ND ND ND ND ND ND ND - - ND uglL 01/11/17 0.13 - 1 ND - ND ND ND ND ND ND ND ND ND ND uglL 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 0726/18 0.13 1.0 - ND - ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.13 1.0 - ND - ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.13 1.0 - ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.13 1.0 - ND - ND ND ND ND ND ND ND ND ND ND uglL 07/07/20 0.13 1.0 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/19/21 0.13 1.0 ND ND ND ND ND ND ND ND ND ND ND Methylene chloride ug/L 01/09106 - -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 5 ug/L ug/L - -- 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 - -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L - -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 - - 1 ND - ND ND ND ND ND ND ND -- -- ND uglL 07/01/10 - - 1 ND - ND ND ND ND ND ND ND - - ND uglL 01/13/11 - - 1 ND - ND ND ND ND ND ND ND - - ND uglL 07/21/11 -- - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 01/16/12 -- - 1 ND - 0.51 1 ND ND ND ND ND ND - - ND ug/L 07/09/12 -- - 1 ND - 0.92 1 ND ND ND ND ND ND - - ND ug/L 01/14/13 -- - 1 ND - 1.1 ND ND ND ND ND ND - - ND ug/L 07/09/13 -- - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 01/30/14 -- - 1 ND - 0.41 1 ND ND ND ND ND ND - - ND ug/L 07/08/14 -- - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 03/03/15 0.23 - 1 ND - 0.48 1 ND ND ND ND ND 0.84 1 - - ND ug/L O8/12/15 0.23 - 1 ND - ND ND ND ND ND ND 0.96 1 - - ND ug/L 02/17/16 0.23 - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 07/14/16 0.23 - 1 ND - ND ND ND ND ND ND ND - - ND ug/L 01/11/17 0.23 - 1 ND - ND ND ND ND ND ND ND ND ND 0.57 1 ug/L 07/11/17 0.23 - 1 ND - ND ND ND ND ND ND 1.4 J 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 1 0111921 1 0.23 1 1.0 1 1 ND I ND ND ND ND ND ND ND ND ND I ND GOLDER 5 of March 2021 TABLE 4 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 Dab MOIL MRL SWS Reporting Upgradienl Doamgndierd Blanks MW-1 P-3 MW-2 MW-1 MW-4S MW-5 MW-6 MW-7S MW-8 Ali Alli Units Sample Limit 2-Butanone ug/L 01/09/06 - - 100 ND -- ND ND ND ND ND -- -- -- - ND NC 2L=4000 ug/L uglL 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 uglL 01/30/08 - -- 10 ND -- ND ND ND ND ND ND ND -- -- ND uglL 07/17/08 - -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug 01114109- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug - -- 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 NO -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 - -- 100 NO - ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 - -- 100 NO - ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 - - 100 NO - NO NO NO NO NO NO NO -- - NO ug/L 07/09/12 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 01/14/13 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 07/09/13 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 01/30/14 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 07/08/14 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 03/03/15 -- - 100 NO - NO NO NO NO NO NO NO - - NO ug/L O8/12115 1.3 - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 02/17/16 1.3 - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 07/14/16 1.3 - 100 NO - NO NO NO NO NO NO NO - - NO ug/L 01/11/17 1.3 - 100 NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/11/17 1.3 - 100 NO - NO NO NO NO ND ND ND ND ND ND ug/L 01/09/18 1.3 -- too NO - 80 J ND ND ND ND ND ND ND ND ND ug/L 07/26/18 1.3 5.0 -- NO - NO ND ND ND ND ND ND ND ND ND ug/L O1/30/19 1.3 5.0 - NO - NO ND NO NO NO NO NO NO NO NO ug/L 07/10/19 1.3 5.0 - NO - 2.1 J NO NO NO NO NO NO NO NO NO ug/L 01/29/20 1.3 5.0 - NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/07/20 1.3 5.0 - NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/19/21 1 1.3 5.0 NO I NO NO NO NO NO NO NO NO NO NO Toluene ug/L 01/09/06 - - 5 NO - NO NO NO NO NO -- -- -- _ NO NC 21 =600 ug/L ug/L 07/12/06 - - 5 NO - NO NO NO NO NO - - - - NO EPA MCL = 1000 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 - - 0.63 ug/L 01/30/08 -- - 10 NO - NO NO NO NO NO NO NO - - NO ug/L 0717/08 -- - 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 0711110 - - 1 NO - NO ND ND NO ND ND 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 ND ND ND ND ND ND -- -- ND ug/L 01/18/12 - -- 1 NO -- NO NO NO NO NO 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 uglL 01/30/14 - -- 1 ND -- ND ND ND ND ND ND ND -- -- ND uglL 07/08/14 - - 1 ND - 0.43 J ND ND ND ND ND ND - - ND ugli- 03/03/15 0.14 -- 1 ND -- ND ND ND ND ND ND ND - - ND uglL OB/12/15 0.14 - 1 ND - ND ND ND ND ND ND ND - - NO ug/L 02/17/16 0.14 - 1 ND - ND ND NO NO NO NO 1.2 - - NO ug/L 07/1416 0.14 - 1 NO - NO NO NO NO NO NO 2.0 - - NO ug/L 01/11/17 0.14 - 1 NO - NO NO NO NO NO NO NO ND ND NO ug/L 07/11/17 0.14 - 1 NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/09/18 0.14 - 1 NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/26/18 0.14 1.0 - NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/30/19 0.14 1.0 - NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/10/19 0.14 1.0 - NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/29/20 0.14 1.0 - ND - ND ND ND ND ND ND ND ND ND ND uglL 07/07/20 0.14 1.0 -- ND -- 0.50 J ND ND ND ND ND ND NO NO NO u /L 01/19/21 0.14 1.0 ND I ND ND ND ND ND ND 0.62 J ND ND NO Vinyl chladde ug 01/09/06 - - 10 ND ND ND ND ND NO - - - - ND L 07/12/06 - 0 1NC2L=0.03 NO - NO NO NO NO NO - - - - NO EPA MCL=2 uglL ug/L 01/16/07 - - 5.5 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 -- - 10 NO - NO NO NO NO NO NO NO - - NO ug/L 07/1-8 -- - 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 ND -- -- ND ug/L 07/21/11 -- - 1 ND - NO NO NO NO NO NO NO -- -- NO ug/L 01/16/12 - - 1 NO - ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 - -- 1 NO -- 0.78 J NO NO NO NO NO NO -- -- NO ug/L 01/14/13 - - 1 NO - 0.93 J NO ND ND ND ND ND -- -- ND ug/L 07/09/13 - -- 1 NO -- 0.90 J NO NO NO NO NO NO -- -- NO ug/L 01/30/14 - - 1 NO - ND NO ND ND ND ND ND -- -- ND ug/L 07/08/14 - - 1 NO - IA NO NO ND ND NO NO -- -- ND ug/L 03/03/15 0.32 -- 1 NO -- 0.58 J NO NO NO NO NO NO -- -- NO ug/L 08/12/15 0.32 - 1 NO - 0.96 J NO NO NO NO NO NO -- -- NO ug/L 02117/16 0.32 -- 1 NO -- NO NO NO NO NO NO NO -- -- NO ug/L 07/1416 0.32 -- 1 NO - ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.32 -- 1 NO -- NO NO NO NO NO NO NO ND ND ND ug/L 07/11/17 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/08/18 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 NO NO 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 -- NO -- NO NO NO NO NO NO NO NO NO NO ug/L 07/07/20 0.32 1.0 - NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/19/21 0.32 1.0 1 NO I NO NO NO NO NO NO 0.74 J NO NO NO Xylenes (Total) ug/L 01/09/06 -- - 5 NO - NO NO NO NO NO - - - - NO NC 2L=500 ug/L ug/L 07/12/06 -- - 5 NO - NO NO NO NO NO - - - - NO EPA MCL=10,000 ug/L ug/L 0712/07 - - 4 NO - NO NO NO NO NO NO NO - - NO ug/L 01/30/08 -- - 10 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 ND ND ND ND ND ND -- -- ND ug/L 01/13/11 - -- 5 NO -- NO NO NO NO NO NO 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 uglL 07/08/14 - - 5 ND - ND ND ND ND ND NO NO - - NO ug/L 03/03/15 -- - 5 ND - ND ND ND NO ND ND NO - - NO ug/L 08/12/15 0.45 - 5 NO - NO NO NO NO NO NO NO - - NO ug/L 02/17/16 0.45 - 5 NO - NO NO NO NO 0.71 J NO NO - - NO ug/L 07/14/16 0.45 - 5 NO - NO NO NO NO 0.50 J NO NO - - NO ug/L 01/11/17 0.45 - 5 NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/11/17 0.45 - 5 NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/09/18 0.45 - 5 NO - NO NO NO NO NO NO NO NO NO NO ug/L 07/26/18 0.45 3.0 - NO - NO NO NO NO NO NO NO NO NO NO ug/L 01/30/19 0.45 3.0 - NO - NO NO NO NO 0.51 J NO NO NO NO NO ug/L 07/10/19 0.45 3.0 - NO - NO NO NO NO NO NO NO NO 0.64 J NO ug/L 01/29/20 0.45 3.0 - NO - NO NO NO NO NO NO NO 0.46 J NO NO ug/L 07/07/20 0.45 3.0 - NO - 1.2 J NO NO NO NO NO NO NO 0.47 J NO u /L 01/19/21 0.45 3.0 NO I NO NO NO NO NO NO NO NO NO NO 1,4-Di-ne ug/L 07/26/18 1.2 2.0 - NO - 67 NO 1.5 J 14 210 NO 25 16 180 NO NC 2L=3 ugIL ug/L 01/30/19 1.2 2.0 - NO - 29 NO 1.3 J 3.4 290 NO 35 20 97 NO No EPA MCL ug/L 07/10/19 1.2 2.0 - NO - 92 NO 1.4 J 4.1 260 1.3 J 28 13 140 ND ug/L 01111/21 1.8 2.0 - NO - 33 ND 0.93 J 9.8 220 1.8 J 32 25 45 ND ug/L 07/07/20 0.8 2.0 - ND - 71 ND 1.8 J 8.9 240 3.5 34 25 110 ND u /L 01/19/21 0.80 2.0 ND 50 ND 2.2 3.0 200 5.8 43 35 69 ND Tetrahydmfuns, ug/L 01/13/11 - - - NO - NO NO NO NO 6.2 NO NO - - NO NC 21 =2000 ug/L 07/21/11 -- - - ND - ND NO ND NO 21 NO NO - - NO No EPA MCL Zl- ug/L 01/16/12 - - - NO - NO NO NO NO 61 NO NO - - NO ug/L 07/09/12 -- - - ND - NO ND ND ND 30 NO NO -- - NO uglL 01/14/13 - - - ND - 0.95 J ND ND ND 22 NO NO - - NO ug/L 07/09/13 -- - - ND - NO ND ND ND ND ND ND - - ND ug1L 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 uglL 03/03/15 0.80 - - NO - 1.4 ND ND ND 6.3 ND ND - - ND u9/L O8/12115 0.80 -- -- 2.8 -- ND 1.5 ND ND 25 ND ND - - ND ug/ 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 NO NO - - NO ug/L 01/11/17 0.80 - - ND - ND ND ND NO 15 NO NO NO 36 NO ug/L 07/11/17 0.80 - - NO - NO NO NO NO 21 NO 2.2 J NO 18 NO ug/L 01/09/18 0.53 - - NO - 12 NO NO NO 50 NO NO 0.65 J 85 NO ug/L 07/26/18 0.53 1 - NO - 0.77 J NO NO NO 66 NO NO NO 130 NO ug/L 01/30/19 0.53 1 - NO - ND NO NO NO 99 NO NO NO 31 4.4 ug/L 07/10/19 0.53 1 - NO - 38 NO NO NO 98 NO 6.8 1.4 47 NO ug/L 01/29/20 0.53 1 - NO - NO NO NO NO 81 NO NO NO 15 NO ug/L 17117" 1 - NO - NO NO NO NO 89 NO NO NO 57 NO ug/L 01/19/21 %3 0.53 1 NO NO NO NO NO NO NO NO NO NO I NO GOLDER 6 of March 2021 �r11 TABLE 4 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 Date MDL MRL SWS Reporgng Upgradienl Downgradierd Blanks MW-1 PJ MW-2 MWJ MW-0S MW6 MW6 MW-7S MW6 AMW-1 AMW-2 Units Sample Limit 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 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 01/04/10 - -- -- 9.1 -- 8.0 5.4 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 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 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 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 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 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 J mg 02/17/16 2.2 -- -- 17 -- 110 15 7.1 4.2 J 100 5.2 40 -- -- ND mg/L 07/14/16 2.2 - -- 22 - 140 9.1 13 11 110 6.2 57 -- -- ND mg 01/11/17 2.2 -- -- 22 -- 220 8.4 19 3.9 J 120 5.9 66 34 75 ND mg/L 07/11/17 2.2 - -- 22 - 110 5.8 12 4.3 J 130 5.9 83 17 68 ND mg 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 J 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 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 m /L 01/19/21 1 2.2 5 1 16 1 130 12 14 3.3 J 210 24 160 96 76 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 ugV mg/L 01/30/08 - -- -- 210 -- 200 100 110 410 310 180 240 -- -- ND mg 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 07/16/09 - -- -- 240 -- 360 110 120 260 280 -- -- -- -- ND mg/L 01/04/10 - - - 280 - 230 86 82 260 310 160 210 -- -- ND J mg 07/01/10 - -- -- 270 -- 310 86 96 250 480 190 240 -- -- ND J mg/L 01/13/11 - - - 220 - 330 190 150 280 490 190 220 -- -- ND mg 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 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 0 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 280 540 240 560 ND mg/L 07/11/17 50 -- -- 390 -- 1100 ND 110 130 1300 290 700 190 620 ND mg/L 01/09/18 50 -- -- 430 -- 1700 ND 86 190 1500 250 810 280 1100 ND mg/L 07/26/18 50 50 -- 380 -- 1700 54 120 190 1500 260 880 400 1000 ND mg/L 01/30/19 50 60 -- 440 -- 740 120 650 110 1600 300 910 490 570 ND mg/L 07/10/19 50 50 -- 410 -- 1800 82 76 180 2100 300 910 330 1200 ND mg/L 01/29/20 50 50 -- 420 -- 1000 96 80 160 2100 340 1100 ]50 540 ND mg/L 07/07/20 50 50 -- 420 -- 1700 110 130 140 2300 390 1000 730 1200 ND m /L 01/19/21 50 50 450 1400 110 110 120 2300 450 1200 970 760 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 - -- 2S0 39 -- 2S 6.4 19 25 69 11 10 -- -- ND EPA MCL 250 ugu mg/L 01/30/08 - -- 250 35 J -- 24 J 5.9 J 23 J 79 J 26 J 10 J 9.2 J -- -- ND mg/L 07/17/08 - -- 2S0 62 J -- 41 J 8.9 J 23 J 39 J 73 J 14 J 14 J -- -- ND mg/L 01/14/09 - -- 250 66 J -- 54 J 11 J 21 J 24 J 73 J -- -- -- -- ND mg/L 07/16/09 - -- 2S0 74 J -- 36 J 8.3 J 33 J 33 J 100 -- -- -- -- ND mg/L 01/04/10 - -- 250 95 J -- 37 J 11 J 26 J 25 J 110 J 12 J 19 J -- -- ND mg/L 0711/10 - -- 2S0 93 J -- 41 J 9.6 J 27 J 22 J 150 J 13 J 23 J -- -- ND mg/L 01/13/11 - -- 250 99 J -- 42 J 10 J 44 J 13 J 140 J 14 J 36 J -- -- ND mg/L 07/21/11 - -- 2S0 110 J -- 66 J 8.3 J 40 J 25 J 140 J 1S J 46 J -- -- ND mg/L 01/16/12 - -- 250 100 J -- 55 J 9.1 J 23 J 13 J 130 J 18 J 50 J -- -- ND mg/L 0719112 - -- 2S0 110 J -- 26 J 7.9 J 40 J 31 J 190 J 20 J 56 J -- -- ND mg/L 01/14/13 - -- 250 120 J -- 55 J 13 J 58 J 9.6 J 190 J 23 J 62 J -- -- ND mg/L 0719113 - -- 2S0 140 J -- 55 J 8.6 J 37 J 17 J 180 J 24 J 71 J -- -- 1.6 mg/L 01/30/14 - -- 250 160 J -- 88 J 15 J 52 J 6.4 J 200 J 28 J 67 J -- -- ND mg/L 0718114 - -- 2S0 150 J -- 4S J 11 J 49 J 26 J 210 J 28 J 87 J -- -- ND mg/L 03/03/15 2.9 -- 250 170 J -- 57 J 11 J 31 J 13 J 270 35 J 92 J -- -- ND mg/L 0 12115 2.9 -- 2S0 160 J -- 26 J 8.6 J 71 J 19 J 210 J 35 J 54 J -- -- ND mg/L 02/17/16 2.9 -- 250 200 J -- 34 J 15 J 31 J 14 J 200 J 38 J 54 J -- -- ND mg/L 07/14/16 2.9 -- 250 210 J -- 73 J 10 J 56 J 28 J 240 J 45 J 53 J -- - ND mg/L 01/11/17 2.9 -- 250 210 J -- 27 J 9.6 J 43 J 8.3 J 220 J 43 J 51 J 56 J 120 J ND mg/L 07/11/17 2.9 -- 2S0 220 -- 22 J 9.9 J 39 J 11 J 1S0 J 46 J 54 J 34 J 99 J ND mg/L 01/09/18 2.9 -- 250 220 J -- 23 J 8.6 J 41 J 36 J 130 J 47 J 60 J 71 J 150 J ND mg/L 07/26/18 2.9 5 -- 210 -- 13 8.9 48 29 130 46 58 36 98 ND mg/L 01/30/19 2.9 5 -- 230 -- 42 12 19 9.6 82 45 61 49 41 ND mg/L 07/10/19 2.9 5 -- 220 -- 20 12 31 30 62 42 61 39 75 ND 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 m /L 01/19/21 1 2.9 5 200 1 22 13 22 10 43 43 53 33 37 ND Total Alkalinity mg/L 01/16/07 - - - 39 - 53 5.0 25 17 160 100 170 - - - No NC 2L Standard mg/L 07/02/07 -- - - 20 - 100 46 12 110 100 99 180 - - ND No EPA MCL mg/L 01/30/08 - - - - - - - - 310 - - - - -ND 01/30/08 -- - - 17 - 81 32 ND - 89 100 170 - - ND Zmg/l- L 071 7/08 - - - 22 B - 210 30 19 B 180 68 100 150 - - 4.8 mg/L oil 4/09 -- - - 25 - 88 32 5.6 J 180 42 - - - - ND mg/L 07/16/09 - - - 17 - 160 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 01/18/12 -- - - 28 - 160 28 ND 190 170 110 120 -- -- ND mg/L 0719/12 - - - 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/O8/14 - - - 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 02/1716 14 -- -- 23 -- 480 39 ND 950 510 160 250 -- -- ND mg/L 07/1 41 6 70 -- -- 23 -- 5S0 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 IN 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 01/10/19 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 1S - ND - 1300 30 ND 86 1600 270 600 450 760 ND m /L 01/19/21 14 15 14 J 1000 39 ND 77 1600 310 680 700 420 1 ND Nolen: 1MW = groundwater monitoring well Zug/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 POL. 5. B=blank-qualified data 6. ND = not detected at or above the stated reporting limit 7. Standards = INC 2L Groundwater Standards or North Carolina Solid Waste Section Groundwater Protection Standards 8. ---= no data available 9. Bolded = Concentrations above the current NC 2L Groundwater Standards or Solid Waste Section Groundwater Protection Standards (SWS GPS) have been bolded. 10. Shaded = Concentrations above the current EPA Maximum Contaminate Level (MCL) have been shaded. 11. Blanks= Field, trip, and laboratory blanks. 122 SWS Reporting Limit NCPOL prior to 2007 and NCSWSL starting in 01/18/07 13. k = EPA Action Level 14. ' = EPA Secondary MCL 15. Data prior to 01/09/06 provided by Joyce Engineering, Inc. 16. 11 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 January 2021 event: antimony and thallium all points (2x); 1,4-Dioxane-MW-6 (Sx); Total Alkalinity as CaCO3- MW-7S (2x), MW-1 (4x), MW-8, AMW-1 (5x), MW-2, MW6, AMW-2 (1Ox); Chloride: MW-2, MW-8, AMW-2 (2x), MW-6 (4x); Sulfate: MW-2, MW-8, AMW-2 (2x), MW6 (4x); Total Dissolved Solids: MW6 (2x) GOLDER 7of7 March 2021 TABLE 5 2013788121.101 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 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 -- 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 -- 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 O8/12/15 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 O8/04/16 -- 18.4 -- -- -- 19.3 -- -- -- -- °C 01/01/17 16.0 14.2 13.9 13.2 15.2 14.4 13.6 13.2 14.1 11.5 °C 07/11/17 19.8 18.3 16.8 17.6 17.7 21.1 16.7 23.1 17.0 19.0 °C 01/09/18 14.4 13.1 13.8 13.6 16.3 13.7 15.6 14.2 12.9 11.0 Verification Event °C 03/16/18 -- -- -- -- -- -- -- 13.0 -- 11.0 °C 07/26/18 19.6 17.6 17.7 17.2 22.3 22.5 19.6 19.2 17.1 19.0 Verification Event oC 09/10/18 -- 18.9 -- -- -- -- -- 19.1 -- 19.8 °C 01/30/19 14.0 -- 11.0 13.1 11.7 12.6 10.7 12.4 12.6 12.2 9.2 °C 07/10/19 19.6 19.4 18.3 18.2 17.9 18.9 20.4 17.4 18.8 16.5 18.9 Verification Event °C 10/04/19 -- -- -- -- -- -- -- -- -- -- 20.0 °C 01/29/20 13.6 14.8 12.5 13.2 11.6 13.5 12.2 13.7 11.8 12.1 10.2 °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 -- GOL❑ER 1 of 2 March 2021 TABLE 5 2013788121.101 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 -- 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 -- 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 -- 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. GOL❑ER 2of2 March 2021 2013788121.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter Units Date MDL MRL Limit Blanks SW-1 SW-3 SW-2 SW-4 Antimony ug/L 01/16/07 -- -- 6 NO NO NO NO NO Human Health Standard = 640 ug/L ug/L 07/02/07 -- -- 6 -- NO -- NO NO ug/L 01/29/08 -- -- 6 NO NO NO NO NO ug/L 07/17/08 -- -- 6 -- NO -- NO NO ug/L 02/27/09 -- -- 6 NO NO NO NO NO ug/L 07/16/09 -- -- 6 dry NO dry NO NO ug/L 01/04/10 -- -- 6 0.0870 J NO NO NO NO ug/L 07/01/10 -- -- 6 dry dry dry NO NO ug/L 01/13/11 -- -- 6 NO NO NO NO NO ug/L 07/21/11 -- -- 6 dry NO -- NO NO ug/L 01/16/12 -- -- 6 NO NO NO NO NO ug/L 07/09/12 -- -- 6 dry NO dry NO 0.461 J ug/L 01/14/13 -- -- 6 NO NO NO NO NO ug/L 07/09/13 -- -- 6 NO 0.371 J NO 0.436 J NO ug/L 01/30/14 -- -- 6 NO NO NO 0.308 J NO ug/L 07/08/14 -- -- 6 dry NO dry NO NO ug/L 03/03/15 0.22 -- 6 NO 0.255 J NO NO NO ug/L 08/12/15 0.22 -- 6 dry NO dry NO NO ug/L 02/17/16 0.22 -- 6 NO NO NO 8.13 J NO ug/L 07/14/16 0.22 -- 6 NO NO NO NO NO ug/L 01/11/17 0.37 -- 6 NO NO 0.553 J 0.413 J NO ug/L 07/11/17 0.37 -- 6 dry dry NO NO NO ug/L 01/09/18 0.25 -- 6 NO NO NO NO NO ug/L 07/26/18 1.85 5.0 -- dry NO dry NO NO ug/L 01/30/19 0.74 2.0 -- NO NO NO NO NO ug/L 07/10/19 0.74 2.0 -- NO NO dry NO NO ug/L 01/30/20 0.74 2.0 -- NO NO NO NO NO ug/L 07/07/20 0.74 2.0 -- dry NO dry NO NO u IL 01/19/21 0.74 2.0 NO NO NO NO NO Arsenic ug/L 10/08/03 -- -- 10 NO NO NO NO NO Freshwater Acute SW Standard = 340 ug/L ug/L 01/23/04 -- -- 10 NO NO NO NO NO Freshwater Chronic SW Standard = 150 ug/L ug/L 07/08/04 -- -- 10 NO NO NO NO NO ug/L 01/25/05 -- -- 10 NO NO NO NO NO ug/L 07/06/05 -- -- 10 dry NO dry NO NO ug/L 01/09/06 -- -- 10 NO NO NO NO NO ug/L 07/12/06 -- -- 10 NO NO NO NO NO ug/L 01/16/07 -- -- 10 NO 3.1 B 3.8 B NO 2.4 J ug/L 07/02/07 -- -- 10 dry NO dry NO NO ug/L 01/29/08 -- -- 10 NO NO NO NO 2.1 J ug/L 07/17/08 -- -- 10 dry NO dry NO NO uglL 02/27/09 -- -- 10 3.5 J NO NO NO NO ug/L 07/16/09 -- -- 10 dry 2.82 J dry NO NO uglL 01/04/10 -- -- 10 NO NO NO NO NO ug/L 07/01/10 -- -- 10 dry dry dry NO 3.54 J ug/L 01/13/11 -- -- 10 3.38 J 3.72 J 3.51 J 3.70 J NO ug/L 07/21/11 -- -- 10 dry NO -- NO NO ug/L 01/16/12 -- -- 10 NO NO NO NO NO ug/L 07/09/12 -- -- 10 dry 2.86 B dry 3.18 B 3.13 J ug/L 01/14/13 -- -- 10 NO NO NO NO NO ug/L 07/09/13 -- -- 10 NO NO NO NO NO ug/L 01/30/14 -- -- 10 NO NO NO NO NO ug/L 07/08/14 -- -- 10 dry NO dry NO NO ug/L 03/03/15 5.4 -- 10 NO NO NO NO NO ug/L 08/12/15 6.8 -- 10 dry NO dry NO NO uglL 02/17/16 6.8 -- 10 NO NO NO NO NO ug/L 07/141,6 6.8 -- 10 6.91 J NO NO NO NO ug/L 01/11/17 6.8 -- 10 NO NO NO NO NO ug/L 07/11/17 6.8 -- 10 dry dry NO NO NO ug/L 01/09/18 6.8 -- 10 NO NO NO NO NO ug/L 07/26/18 7.6 10 -- dry NO dry NO NO ug/L 01/30/19 7.6 10 -- NO NO NO NO NO ug/L 07/10/19 7.6 10 -- NO NO dry NO NO uglL 01/30/20 7.6 10 -- NO NO NO NO NO uglL 07/07/20 7.6 10 -- dry NO dry NO NO u IL 01/19/21 7.6 10 NO NO NO NO NO Barium ug/L 10/08/03 -- -- 500 NO NO NO NO NO Human Health Std. = 20,000 ug/L ug/L 01/23/04 -- -- 500 NO NO NO NO NO ug/L 07/08/04 -- -- 500 NO NO NO NO NO ug/L 01/25/05 -- -- 500 NO NO NO NO NO ug/L 07/06/05 -- -- 500 dry NO dry NO NO ug/L 01/09/06 -- -- 500 NO NO NO NO NO ug/L 07/12/06 -- -- 500 NO NO NO NO NO ug/L 01/16/07 -- -- 100 38.7 J 47.6 J 39.5 J 46.0 J 0.90 1 ug/L 07/02/07 -- -- 100 dry 62.6 J dry 51.7 J 1.2 1 ug/L 01/29/08 -- -- 100 49.8 J 74.1 J 62.2 J 71.2 J 0.3 1 ug/L 07/17/08 -- -- 100 dry 67.3 J dry 71.9 J NO ug/L 02/27/09 -- -- 100 36.0 J 39.1 J 52.7 J 46.7 J NO ug/L 07/16/09 -- -- too dry 94.5 J dry 84.4 J NO ug/L 01/04,10 -- -- 100 34.0 J 66.2 J 38.0 J 50.3 J 0.552 1 ug/L 07/0111) -- -- too dry dry dry 7L0 J NO ug/L 01/13/11 -- -- 100 47.9 J 71.4 J 49.1 J 54.3 J NO ug/L 07/21/11 -- -- 100 dry 87.5 J -- 69.4 J NO ug/L 01/16/12 -- -- 100 37.2 J 37.3 J 54.8 J 47.4 J NO ug/L 07/09/12 -- -- 100 dry 72.4 J dry 55.2 J NO ug/L 01/14/13 -- -- 100 546 J 71.2 J 56.4 J 90.0 J 1...46 J ug/L 07/09/13 too 735 J 583 J 632 J 46.3 J 137 J ug/L 01/30/14 100 41.0 J 62.3 J 45.1 J 521 J 108 J ug/L 07/08/14 10 dry 74.4 J dry 61.J 1.13 J ug/L 03/03/15 1.0 100 47.0 J 82.6 J 45.8 J 60.09 1304 J ug/L 08/12/ .0 10 dry 163 dry 167 2.33 J ug/L 02/17/16 100 393 J 770 J 40.9 J 815 NO ug/L 07/141,6 . 10 too 0 J 57.3 J 120 76.0 J 1.51 J ug/L 01/11/17 1.0 100 71.4 J 56.2 J91.0 J853 J NO ug/L 07/11/17 1.0 -- 100 dry dry 80.6 J 58.7 J 1.39 1 ug/L 01/09/18 1.0 -- 100 106 101 85.0 J 65.9 J NO ug/L 07/26/18 1.1 10 -- dry 70.9 dry 72.1 NO ug/L 01/30/19 1.1 10 -- 36.5 52.0 39.7 41.8 NO ug/L 07/10/19 1.1 10 -- 77.5 73.1 dry 52.7 2.91 1 uglL 01/30/20 1.1 10 -- 41.3 57.4 44.0 56.4 NO uglL 07/07/20 1.1 10 -- dry 61.1 dry 40.7 NO u IL 01/19/21 1.1 10 43.0 60.6 49.1 51.2 NO GOLDER 1 of 6 March 2021 2013788121.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter Units Date MDL MRL Limit Blanks SW-1 SW-3 SW-2 SW-4 Beryllium ug/L 01/16/07 -- -- 1 NO NO NO NO NO Freshwater Acute SW Standard = 65 ug/L ug/L 07/02/07 -- -- 1 -- NO -- NO NO Freshwater Chronic SW Standard = 6.5 ug/1 ug/L 01/29/08 -- -- 1 NO NO NO NO NO ug/L 07/17/08 -- -- 1 -- NO -- NO NO ug/L 02/27/09 -- -- 1 NO NO NO NO NO ug/L 07/16/09 -- -- 1 dry 0.220 J dry 0.178 J NO ug/L 01/04/10 -- -- 1 NO NO NO NO NO ug/L 07/01/10 -- -- 1 dry dry dry NO NO ug/L 01/13/11 -- -- 1 NO NO NO NO NO ug/L 07/21/11 -- -- 1 dry NO -- NO NO ug/L 01/16/12 -- -- 1 NO NO NO NO NO ug/L 07/09/12 -- -- 1 dry NO dry NO NO ug/L 01/14/13 -- -- 1 NO NO NO NO NO ug/L 07/09/13 -- -- 1 NO NO NO NO NO ug/L 01/30/14 -- -- 1 NO NO NO NO NO ug/L 07/08/14 -- -- 1 dry NO dry NO NO ug/L 03/03/15 0.10 -- 1 NO NO NO NO NO ug/L 08/12/15 0.10 -- 1 dry NO dry NO NO ug/L 02/17/16 0.10 -- 1 NO NO NO 1.58 J NO ug/L 07/14/16 0.10 -- 1 NO NO NO NO NO ug/L 01/11/17 0.10 -- 1 NO NO NO NO NO ug/L 07/11/17 0.13 -- 1 dry dry NO NO NO ug/L 01/09/18 0.13 -- 1 NO NO NO NO NO ug/L 07/26/18 0.16 1.0 -- dry NO dry NO NO ug/L 01/30/19 0.16 1.0 -- NO NO NO NO NO ug/L 07/10/19 0.16 1.0 -- NO NO dry NO NO ug/L 01/30/20 0.16 1.0 -- NO NO NO NO NO ug/L 07/07/20 0.16 1.0 -- dry NO dry NO NO u /L 01/19/21 0.16 1.0 NO NO NO NO NO Cadmium ug/L 10/08/03 -- -- 1 NO NO NO NO NO Freshwater Acute SW Standard (ug/L, ug/L 01/23/04 -- -- 1 NO NO NO NO NO SW-1 - 1.23 ug/L 07/08/04 -- -- 1 NO NO NO NO NO SW-2=2.01 ug/L 01/25/05 -- -- 1 NO NO NO NO NO SW-3=2.48 ug/L 07/06/05 -- -- 1 dry NO dry NO NO SW-4=2.40 ug/L 01/09/06 -- -- 1 NO NO NO NO NO ug/L 07/12/06 -- -- 1 NO NO NO NO NO Freshwater Chronic SW Standard (ug/L ug/L 01/16/07 -- -- 1 NO NO NO NO NO SW-1=0.21 ug/L 07/02/07 -- -- 1 dry NO dry NO NO SW-2=0.32 ug/L 01/29/08 -- -- 1 NO NO NO NO NO SW-3=0.39 ug/L 07/17/08 -- -- 1 dry 0.40 J dry NO NO SW-4 0.38 ug/L 02/27/09 -- -- 1 NO NO NO NO NO ug/L 07/16/09 -- -- 1 dry 0.134 B dry 0.442 B 1.19 ug/L 01/04/10 -- -- 1 0.317 J 0.230 J 0.830 J 0.143 J NO ug/L 07/01/10 -- -- 1 dry dry dry NO NO ug/L 01/13/11 -- -- 1 NO NO NO NO NO ug/L 07/21/11 -- -- 1 dry NO -- NO NO ug/L 01/16/12 -- -- 1 NO NO NO NO NO ug/L 07/09/12 -- -- 1 dry NO dry NO NO ug/L 01/14/13 -- -- 1 NO NO NO NO NO ug/L 07/09/13 -- -- 1 NO NO NO NO NO ug/L 01/30/14 -- -- 1 NO NO NO NO NO ug/L 07/08/14 -- -- 1 dry NO dry NO NO ug/L 03/03/15 0.36 -- 1 NO NO NO NO NO ug/L 08/12/15 0.36 -- 1 dry NO dry NO NO ug/L 02/17/16 0.36 -- 1 NO NO NO NO NO ug/L 07/14/16 0.36 -- 1 NO NO NO NO NO ug/L 01/11/17 0.36 -- 1 NO NO NO NO NO ug/L 07/11/17 0.36 -- 1 dry dry NO NO NO ug/L 01/09/18 0.36 -- 1 NO NO NO NO NO ug/L 07/26/18 0.36 1.0 -- dry NO dry NO NO ug/L 01/30/19 0.36 1.0 -- NO NO NO NO NO ug/L 07/10/19 0.36 1.0 -- NO NO dry NO NO ug/L 01/30/20 0.36 1.0 -- NO NO NO NO NO ug/L 07/07/20 0.36 1.0 -- dry NO dry NO NO u /L 01/19/21 0.36 1.0 NO NO NO NO NO Chromium ug/L 10/08/03 -- -- 10 NO NO NO NO NO Freshwater Acute SW Standard (ug/L', ug/L 01/23/04 -- -- 10 NO NO NO NO NO SW-1=269 ug/L 07/08/04 -- -- 10 NO NO NO NO NO SW-2=425 ug/L 01/25/05 -- -- 10 NO NO NO NO NO SW-3 = 518 ug/L 07/06/05 -- -- 10 -- NO -- NO NO SW-4=504 ug/L 01/09/06 -- -- 10 NO NO NO NO NO ug/L 07/12/06 -- -- 10 NO NO NO NO NO Freshwater Chronic SW Standard (ug/L ug/L 01/16/07 -- -- 10 NO NO NO NO NO SW-1 - 34.99 ug/L 07/02/07 -- -- 10 -- NO -- NO NO SW-2=55.34 ug/L 01/29/08 -- -- 10 NO NO NO NO NO SW-3=67.4 ug/L 07/17/08 -- -- 10 -- NO -- NO NO SW-4 65.5 ug/L 02/27/09 -- -- 10 NO NO NO NO NO ug/L 07/16/09 -- -- 10 dry 8.45 J dry 5.87 J NO ug/L 01/04/10 -- -- 10 NO 2.49 J NO NO NO ug/L 07/01/10 -- -- 10 dry dry dry 1.37 B 1.80 J ug/L 01/13/11 -- -- 10 NO NO NO NO NO ug/L 07/21/11 -- -- 10 dry NO -- NO NO ug/L 01/16/12 -- -- 10 NO NO 2.35 J 1.42 J NO ug/L 07/09/12 -- -- 10 dry NO dry NO NO ug/L 01/14/13 -- -- 10 1.69 B 2.92 B NO 6.53 B 1.40 J ug/L 07/09/13 -- -- 10 NO NO NO NO NO ug/L 01/30/14 -- -- 10 NO NO NO NO NO ug/L 07/08/14 -- -- 10 dry NO dry NO NO ug/L 03/03/15 1.4 -- 10 NO 6.99 B NO 4.03 B 1.66 J ug/L 08/12/15 1.4 -- 10 dry 58.2 dry 43.7 NO ug/L 02/17/16 1.4 -- 10 NO 13.8 NO 343 NO ug/L 07/14/16 1.4 -- 10 NO NO 7.29 J NO NO ug/L 01/11/17 1.4 -- 10 NO NO 3.08 J 2.12 J NO ug/L 07/11/17 1.4 -- 10 dry dry NO NO NO ug/L 01/09/18 1.4 -- 10 NO NO NO NO NO ug/L 07/26/18 1.4 10 -- dry 1.49 J dry 1.52 J NO ug/L 01/30/19 1.4 10 -- NO NO NO NO NO ug/L 07/10/19 1.4 10 -- NO NO dry NO NO ug/L 01/30/20 1.4 10 -- NO NO NO NO NO ug/L 07/07/20 1.4 10 -- dry NO dry NO NO u /L 01/19/21 1.4 10 NO NO NO NO NO GOLDER 2 of March 2021 2013788121.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter Units Date MDL MRL Limit Blanks SW-1 SW-3 SW-2 SW-0 Cobalt ug/L 01/16/07 -- -- 10 NO NO NO NO NO Human Health Std. = 4.0 ug/L ug/L 07/02/07 -- -- 10 -- NO -- NO NO ug/L 01/29/08 -- -- 10 NO NO NO NO NO ug/L 07/17/08 -- -- 10 -- NO -- NO NO ug/L 02/27/09 -- -- 10 2.0 J NO NO NO NO ug/L 07/16/09 -- -- 10 dry 1.96 J dry 1.69 J NO ug/L 01/04/10 -- -- 10 0.961 J 2.050 J 0.97 J 1.65 J NO ug/L 07/01/10 -- -- 10 dry dry dry 1.18 J NO ug/L 01/13/11 -- -- 10 1.15 J NO NO NO NO ug/L 07/21/11 -- -- 10 dry NO -- NO NO ug/L 01/16/12 -- -- 10 NO NO NO NO NO ug/L 07/09/12 -- -- 10 dry NO dry NO NO ug/L 01/14/13 -- -- 10 1.59 J 1.77 J NO 4.73 J NO ug/L 07/09/13 -- -- 10 1.50 J NO NO NO NO ug/L 01/30/14 -- -- 10 NO 1.58 J 1.27 J 1.91 J NO ug/L 07/08/14 -- -- 10 dry NO dry NO NO ug/L 03/03/15 1.1 -- 10 NO 2.65 J NO 1.35 J NO ug/L 08/12/15 1.1 -- 10 dry 20.2 dry 17.8 NO ug/L 02/17/16 1.1 -- 10 1.18 J 6.32 J 1.36 J 168 NO ug/L 07/14/16 1.1 -- 10 1.34 J NO 2.94 J NO NO ug/L 01/11/17 1.1 -- 10 NO NO 1.95 J 1.82 J NO ug/L 07/11/17 1.1 -- 10 dry dry NO NO NO ug/L 01/09/18 1.1 -- 10 NO NO NO NO NO ug/L 07/26/18 1.4 10 -- dry NO dry NO NO ug/L 01/30/19 1.4 10 -- NO NO NO NO NO ug/L 07/10/19 1.4 10 -- 2.65 J NO dry NO NO ug/L 01/30/20 1.4 10 -- NO 1.63 J NO 1.88 J NO ug/L 07/07/20 1.4 10 -- dry NO dry NO NO u /L 01/19/21 1.4 10 NO 1.68 J 1.92 J NO ND Copper ug/L 01/16/07 -- -- 10 NO 1.50 J 1.00 J NO ND Freshwater Acute SW Standard (ug/L, ug/L 07/02/07 -- -- 10 dry NO dry NO NO SW-1 - 5.67 ug/L 01/29/08 -- -- 10 1.00 J 1.20 J NO 1.10 J NO SW-2 = 9.60 ug/L 07/17/08 -- -- 10 dry NO dry 1.90 J NO SW-3 = 12.0 ug/L 02/27/09 -- -- 10 1.90 J NO 1.80 J NO NO SW-4 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 NO 2.06 J NO Freshwater Chronic SW Standard (ug/L ug/L 07/01/10 -- -- 10 dry dry dry NO NO SW-1=4.09 ug/L 01/13/11 -- -- 10 NO NO NO NO NO 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 NO NO 2.89 J NO NO SW-4=7.87 ug/L 07/09/12 -- -- 10 dry NO dry NO NO ug/L 01/14/13 -- -- 10 5.01 J 4.24 J NO 13.4 NO ug/L 07/09/13 -- -- 10 1.63 J 2.44 J NO 2.28 J NO ug/L 01/30/14 -- -- 10 NO NO NO NO NO ug/L 07/08/14 -- -- 10 dry NO dry 1.63 J NO ug/L 03/03/15 1.6 -- 10 3.91 J 10.4 3.79 J 8.05 J NO ug/L 08/12/15 1.6 -- 10 dry 52.4 dry 43.3 NO ug/L 02/17/16 1.6 -- 10 4.03 B 14.4 B 2.76 B 357 3.66 J ug/L 07/14/16 1.6 -- 10 NO NO 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 NO ug/L 01/09/18 1.6 -- 10 NO NO NO NO NO ug/L 07/26/18 1.6 10 -- dry 2.50 B dry 1.64 B 2.02 J ug/L 01/30/19 1.6 10 -- 3.48 J 2.94 J NO 2.59 J NO ug/L 07/10/19 1.6 10 -- 2.12 B 3.28 B dry 2.96 B 3.52 J ug/L 01/30/20 1.6 10 -- 4.14 J 2.56 J 1.77 J 2.01 J NO ug/L 07/07/20 1.6 10 -- dry NO dry NO NO u /L 01/19/21 1.6 10 2.72 J NO NO NO NO Lead ug/L 10/08/03 -- -- 10 NO NO NO NO NO Freshwater Acute SW Standard (ug/L, ug/L 01/23/04 -- -- 10 NO NO NO NO NO SW-1=23.5 ug/L 07/08/04 -- -- 10 NO NO NO NO NO SW-2-43.7 ug/L 01/25/05 -- -- 10 NO NO NO NO NO SW-3=56.9 ug/L 07/06/05 -- -- 10 dry NO dry NO NO SW-4=54.8 ug/L 01/09/06 -- -- 10 NO NO NO NO NO ug/L 07/12/06 -- -- 10 NO NO NO NO NO Freshwater Chronic SW Standard (ug/L ug/L 01/16/07 -- -- 10 4.6 J NO 2.6 J 3.6 J NO SW-1 = 0.92 ug/L 07/02/07 -- -- 10 dry NO dry NO NO SW-2=1.70 ug/L 01/29/08 -- -- 10 NO NO NO NO NO SW-3=2.22 ug/L 07/17/08 -- -- 10 dry NO dry NO NO SW-4=2.13 ug/L 02/27/09 -- -- 10 NO NO NO NO NO ug/L 07/16/09 -- -- 10 dry 4.30 J dry 4.68 J NO ug/L 01/04/10 -- -- 10 1.68 B 4.41 B NO NO 1.24 J ug/L 07/01/10 -- -- 10 dry dry dry 2.56 J NO ug/L 01/13/11 -- -- 10 NO NO NO NO NO ug/L 07/21/11 -- -- 10 dry NO -- 2.32 J NO ug/L 01/16/12 -- -- 10 NO NO NO NO NO ug/L 07/09/12 -- -- 10 dry NO dry NO NO ug/L 01/14/13 -- -- 10 NO NO NO 3.58 J NO ug/L 07/09/13 -- -- 10 NO NO NO NO NO ug/L 01/30/14 -- -- 10 NO NO NO NO NO ug/L 07/08/14 -- -- 10 dry NO dry NO NO ug/L 03/03/15 2.1 -- 10 NO NO NO NO NO ug/L 08/12/15 3.1 -- 10 dry 15.7 dry 14.8 NO ug/L 02/17/16 3.1 -- 10 NO NO NO 32.5 J NO ug/L 07/14/16 3.1 -- 10 NO NO NO NO NO ug/L 01/11/17 3.1 -- 10 NO NO NO NO NO ug/L 07/11/17 3.1 -- 10 dry dry NO NO NO ug/L 01/09/18 3.1 -- 10 NO NO NO NO NO ug/L 07/26/18 3.1 10 -- dry NO dry NO NO ug/L 01/30/19 3.1 10 -- NO NO NO NO NO ug/L 07/10/19 3.1 10 -- NO NO dry NO NO ug/L 01/30/20 3.1 10 -- NO NO NO NO NO ug/L 07/07/20 3.1 10 -- dry NO dry NO NO u /L 01/19/21 3.1 10 NO NO NO NO NO GOLDER 3 of March 2021 2013788121.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter Units Date MDL MRL Limit Blanks SW-1 SW-3 SW-2 SW-0 Nickel ug/L 01/16/07 -- -- 50 2.9 J NO NO NO NO Freshwater Acute SW Standard (ug/L, ug/L 07/02/07 -- -- 50 dry NO dry 1.7 J NO SW-1=216 ug/L 01/29/08 -- -- 50 4.8 J NO NO NO NO SW-2 = 346 ug/L 07/17/08 -- -- 50 dry NO dry NO NO SW-3 = 424 ug/L 02/27/09 -- -- 50 2.4 J NO NO NO NO SW-4=412 ug/L 07/16/09 -- -- 50 dry 3.92 B dry 3.42 B 3.80 J ug/L 01/04/10 -- -- 50 NO NO NO NO NO Freshwater Chronic SW Standard (ug/L ug/L 07/01/10 -- -- 50 dry dry dry NO NO SW-1=24.0 ug/L 01/13/11 -- -- 50 NO NO NO NO NO SW-2-38.5 ug/L 07/21/11 -- -- 50 dry NO -- NO NO SW-3=47.1 ug/L 01/16/12 -- -- 50 NO NO NO NO NO SW-4=45.8 ug/L 07/09/12 -- -- 50 dry NO dry NO NO ug/L 01/14/13 -- -- 50 2.29 J NO NO 2.84 J NO ug/L 07/09/13 -- -- 50 1.91 J NO NO NO NO ug/L 01/30/14 -- -- 50 NO NO NO NO NO ug/L 07/08/14 -- -- 50 dry NO dry NO NO ug/L 03/03/15 1.8 -- 50 NO 3.67 J NO NO NO ug/L O8/12/15 1.8 -- 50 dry 29.9 J dry 25.3 J NO ug/L 02/17/16 1.8 -- 50 NO 8.79 J NO 230 NO ug/L 07/14/16 2.2 -- 50 3.23 B NO 5.87 B 2.24 B 11.9 J ug/L 01/11/17 2.2 -- 50 2.60 J NO 3.47 J 3.28 J NO ug/L 07/11/17 2.2 -- 50 dry dry NO NO NO ug/L 01/09/18 2.2 -- 50 NO NO NO 2.34 J NO ug/L 07/26/18 2.2 10 -- dry 2.25 J dry 2.83 J NO ug/L 01/30/19 2.2 10 -- NO NO NO NO NO ug/L 07/10/19 2.2 10 -- NO NO dry NO NO ug/L 01/30/20 2.2 10 -- 2.26 J NO NO NO NO ug/L 07/07/20 2.2 10 -- dry NO dry NO NO u IL 01/19/21 2.2 10 NO NO NO NO NO Selenium ug/L 10/08/03 -- -- 20 NO NO NO NO NO Freshwater Ante SW Standard = 5 ug/L ug/L 01/23/04 -- -- 20 NO NO NO NO NO Freshwater Chronic SW Standard = 5 ug/1 ug/L 07/08/04 -- -- 20 NO NO NO NO NO ug/L 01/25/05 -- -- 20 NO NO ND NO NO ug/L 07/06/05 -- -- 20 -- NO -- NO NO ug/L 01/09/06 -- -- 20 NO NO NO NO NO ug/L 07/12/06 -- -- 20 NO NO NO NO NO ug/L 01/i6/07 -- -- 10 ND NO ND NO NO ug/L 07/02/07 -- -- 10 -- NO -- NO NO ug/L 01/29/08 -- -- 10 ND NO ND NO NO ug/L 07/17/08 -- -- 10 -- NO -- NO NO ug/L 02/27/09 -- -- 10 4.7 J NO 5.8 J NO NO ug/L 07/16/09 -- -- 10 dry NO dry NO NO ug/L 01/04,10 -- -- 10 ND NO NO NO NO ug/L 07/0111) -- -- 10 dry dry dry NO NO ug/L 01/13/11 -- -- 10 ND NO NO NO NO ug/L 07/21/11 -- -- 10 dry NO -- NO NO ug/L 01/16/12 -- -- 10 ND NO NO NO NO ug/L 07/09/12 -- -- 10 dry NO dry NO NO ug/L 01/14/13 -- -- 10 NO NO NO NO NO ug/L 07/09/13 -- -- 10 NO NO NO NO NO ug/L 01/30/14 -- -- 10 NO NO NO NO NO ug/L 07/08/14 -- -- 10 dry NO dry NO NO uglL 03/03/15 5 -- 10 NO NO NO NO NO ug/L O8/12/15 5 -- 10 dry NO dry NO NO ug/L 02/17/16 5 -- 10 NO NO NO NO NO ug/L 07/14/16 6.2 -- 10 NO NO NO NO NO ug/L 01/11/17 6.2 -- 10 NO NO NO NO NO ug/L 07/11/17 6.2 -- 10 dry dry NO NO NO uglL 01/09/18 6.2 -- 10 NO NO NO NO NO ug/L 07/26/18 6.2 10 -- dry NO dry NO NO ug/L 01/30/19 6.2 10 -- NO NO NO NO NO ug/L 07/10/19 6.2 10 -- NO NO dry NO NO 01/30/20 6.2 10 -- NO NO NO NO NO ZL L 07/07/20 6.2 10 -- dry NO dry NO NO u IL 01/19/21 6:2 10 NO NO NO NO NO SiNe, ug/L 10/08/03 -- -- 10 NO NO NO NO NO Freshwater Acute SW Standard (ug/L', ug/L 01/23/04 -- -- 10 NO NO NO NO NO SW-1=0.67 ug/L 07/08/04 -- -- 10 NO NO NO NO NO SW-2=174 ug/L 01/25/05 -- -- 10 NO NO NO NO NO SW-3=163 ug/L 07/06/05 -- -- 10 -- NO -- NO NO SW-4=2.48 ug/L 01/09/06 -- -- 10 NO NO NO NO NO ug/L 07/12/06 -- -- 10 NO NO NO NO NO Freshwater Chronic Standard = 0.06 ug/I ug/L 01/16/07 -- -- 10 NO NO ND NO NO ug/L 07/02/07 -- -- 10 -- NO -- NO NO ug/L 01/29/08 -- -- 10 NO NO NO NO NO ug/L 07/17/08 -- -- 10 -- NO -- NO NO ug/L 02/27/09 -- -- 10 NO NO NO NO NO ug/L 07/16/09 -- -- 10 dry NO dry NO NO ug/L 01/04,10 -- -- 10 NO NO NO NO NO ug/L 07/011 () -- -- 10 dry dry dry NO NO ug/L 01/13/11 -- -- 10 NO NO NO NO NO ug/L 07/21/11 -- -- 10 dry NO -- NO NO ug/L 01/16/12 -- -- 10 NO NO NO NO NO ug/L 07/09/12 -- -- 10 dry NO dry NO NO ug/L 01/14/13 -- -- 10 NO NO NO NO NO ug/L 07/09/13 -- -- 10 NO NO NO NO NO ug/L 01/30/14 -- -- 10 NO NO NO NO NO ug/L 07/08/14 -- -- 10 dry NO dry NO NO 19 03/03/15 1.9 -- 10 NO NO NO NO NO ug/L O8/12/15 1.9 -- 10 dry NO dry NO 2.59 J ug/L 02/17/16 1.9 -- 10 NO NO NO NO NO ug/L 07/14/16 1.9 -- 10 NO NO NO NO NO ug/L 01/11/17 1.9 -- 10 NO NO NO NO NO ug/L 07/11/17 1.9 -- 10 dry dry NO NO NO ug/L 01/09/18 1.9 -- 10 1.92 J 2.26 J 1.96 J NO NO ug/L 07/26/11 1.9 10 -- dry NO dry NO NO ug/L 01/30/19 1.9 10 -- NO NO NO NO NO ug/L 07/10/19 1.9 10 -- NO NO dry NO NO ug/L 01/30/20 1.9 10 -- NO NO NO NO NO ug/L 07/07/20 1.9 10 -- dry NO dry NO NO u IL 01/19/21 1.9 10 NO NO NO NO NO G GOLDER 4 of6 March 2021 2013788121.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter Units Data MDL MRL Limit Blanks SW-1 SW-3 SW-2 SW-4 Thallium ug/L 01/16/07 -- -- 5.5 NO NO NO NO NO Human Health Std. = 0.47 ug/L ug/L 07/02/07 -- -- 5.5 dry NO dry NO NO ug/L 01/29/08 -- -- 5.5 NO NO 0.041 J NO NO ug/L 07/17/08 -- -- 5.5 dry NO dry NO NO ug/L 02/27/09 -- -- 5.5 NO NO NO NO NO ug/L 07/16/09 -- -- 5.5 dry NO dry NO NO ug/L 01/04/10 -- -- 5.5 NO NO NO NO NO ug/L 07/01/10 -- -- 5.5 dry dry dry NO NO ug/L 01/13/11 -- -- 5.5 NO NO NO NO NO ug/L 07/21/11 -- -- 5.5 dry NO -- NO NO ug/L 01/16/12 -- -- 5.5 NO NO NO NO NO ug/L 07/09/12 -- -- 5.5 dry NO dry NO NO ug/L 01/14/13 -- -- 5.5 NO NO NO NO NO ug/L 07/09/13 -- -- 5.5 NO NO NO NO NO ug/L 01/30/14 -- -- 5.5 NO NO NO NO NO ug/L 07/08/14 -- -- 5.5 dry NO dry NO NO ug/L 03/03/15 0.11 -- 5.5 NO NO NO NO NO ug/L 08/12/15 0.11 -- 5.5 dry NO dry NO NO ug/L 02/17/16 0.11 -- 5.5 NO NO NO NO NO ug/L 07/14/16 0.11 -- 5.5 0.270 J 0.313 J 0.323 J 0.315 J NO ug/L 01/11/17 0.11 -- 5.5 NO NO NO NO NO ug/L 07/11/17 0.11 -- 5.5 dry dry 0.117 J NO NO ug/L 01/09/18 0.05 -- 5.5 NO NO NO NO NO ug/L 07/26/18 0.55 5.0 -- dry NO dry NO NO ug/L 01/30/19 0.22 2.0 -- NO 0.230 J NO NO NO ug/L 07/10/19 0.22 2.0 -- NO NO dry NO NO ug/L 01/30/20 0.22 2.0 -- NO NO NO NO NO ug/L 07/07/20 0.22 2.0 -- dry NO dry NO NO u IL 01/19/21 0.22 2.0 0.448 J 0.438 J 0.414 J 0.369 J NO Vanadium ug/L 01/16/07 -- -- 25 NO NO NO NO NO (No SW Standard) ug/L 07/02/07 -- -- 25 dry 2.1 J dry 2.6 J NO ug/L 01/29/08 -- -- 25 NO NO NO NO NO ug/L 07/17/08 -- -- 25 dry NO dry 1.7 J NO ug/L 02/27/09 -- -- 25 NO NO NO NO NO ug/L 07/16/09 -- -- 25 dry 23.4 J dry 16.1 J NO ug/L 01/04/10 -- -- 25 1.27 J 7.24 J 0.821 J 4.46 J NO ug/L 07/01/10 -- -- 25 dry dry dry 4.33 J NO ug/L 01/13/11 -- -- 25 NO NO NO NO NO ug/L 07/21/11 -- -- 25 dry 2.31 J -- 2.39 J NO ug/L 01/16/12 -- -- 25 1.52 J 1.79 J 7.01 J 4.69 J NO ug/L 07/09/12 -- -- 25 dry NO dry 1.81 J NO ug/L 01/14/13 -- -- 25 3.46 J 6.21 J NO 14.0 J NO uglL 07/09/13 -- -- 25 NO 2.85 J NO 2.79 J NO ug/L 01/30/14 -- -- 25 NO 1.53 J NO 2.17 J NO ug/L 07/08/14 -- -- 25 dry 2.53 J dry 3.14 J NO ug/L 03/03/15 1.4 -- 25 NO 17.3 J NO 8.48 J NO ug/L 08/12/15 1.4 -- 25 dry 155 dry 118 NO ug/L 02/17/16 1.4 -- 25 NO 35.2 NO 853 NO ug/L 07/14/16 1.4 -- 25 NO NO 19.8 J 4.62 J NO ug/L 01/11/17 1.4 -- 25 NO NO 7.90 J 6.16 J NO uglL 07/11/17 1.4 -- 25 dry dry NO NO NO ug/L 01/09/18 1.4 -- 25 ND ND NO NO NO ug/L 07/26/18 1.4 10 -- dry 5.34 J dry 4.65 J NO ug/L 01/30/19 1.4 10 -- 1.76 J 1.91 J NO 1.65 J NO ug/L 07/10/19 1.4 10 -- 3.82 J 1.47 J dry 1.52 J NO ug/L 01/30/20 1.4 10 -- 1.49 J 1.51 J NO 1.91 J NO ug/L 07/07/20 1.4 10 -- dry 2.63 J dry 1.75 J NO u /L 01/19/21 1.4 10 NO NO NO NO NO 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 NO dry 7.6 J NO 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 NO SW-3106 ug/L 0227/09 10 29.8 13.8 7.8 J 13 NO SW-4=1. ug/L 07/16/09 1031 dry 14.0 B dry 26.9 B 20.5 ug/L 01/04/10 10 0 24.0 119 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 NO SW-1 = 54.4 uglL 01/13/11 -- -- 10 32.6 NO 7.26 J NO NO SW-2 = 87.3 ug/L 07/21/11 -- -- 10 dry NO -- NO NO SW-3=107.0 ug/L 01/16/12 -- -- 10 23.1 11.2 7.09 J NO NO SW-4 = 104.0 ug/L 07/09/12 -- -- 10 dry NO dry NO NO ug/L 01/14/13 -- -- 10 31.4 7.14 J 4.15 J 21.7 NO ug/L 07/09/13 -- -- 10 9.74 J NO NO NO NO uglL 01/30/14 -- -- 10 33.7 9.78 J 17.5 7.46 J NO ug/L 07/08/14 -- -- 10 dry NO dry 3.89 J NO ug/L 03/03/15 3.8 -- 10 36.9 20.7 19.5 10.6 NO ug/L 08/12/15 3.8 -- 10 dry 53.6 dry 55.1 NO ug/L 02/17/16 18 -- 10 16.7 20.1 14.4 306 NO ug/L 07/14/16 4.4 -- 10 6.34 J NO 5.57 J NO NO uglL 01/11/17 4.4 -- 10 40.6 4.95 J 11.8 10.1 NO ug/L 07/11/17 4.4 -- 10 dry dry NO NO NO ug/L 01/09/18 4.4 -- 10 17.8 4.49 J NO NO NO ug/L 07/26/11 4.4 10 -- dry 11.9 dry 8.19 J NO uglL 01/30/19 4.4 10 -- 17.4 6.13 J 10.1 NO NO ug/L 07/10/19 4.4 10 -- 7.32 J NO dry NO NO 01/30/20 4.4 10 -- 34.8 6.41 J 12.1 4.85 J NO ZuglL l- 07/07/20 4.4 10 -- dry NO dry NO NO u IL 01/19/21 4.4 10 15.9 4.52 J 6.98 J NO NO Is GDLDER 5 of March 2021 2013788121.101 TABLE 6 Summary of Detected Constituents in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Reporting Upstream Downstream Parameter Units Date MDL MRL Limit Blanks SW-1 SW-3 SW-2 SW4 Acetone ug/L 01/29/08 -- -- 100 NO NO NO NO ND Freshwater Aquatic Std. = 2,000 ug/I ug/L 07/17/08 -- -- 100 -- NO -- NO ND ug/L 02/27/09 -- -- 100 NO NO NO NO NO ug/L 07/16/09 -- -- 100 dry NO dry NO NO ug/L 01/04/10 -- -- 100 NO NO NO NO 7.1 J ug/L 07/01/10 -- -- 100 dry dry dry NO NO ug/L 01/13/11 -- -- 100 NO NO NO NO NO ug/L 07/21/11 -- -- 100 dry NO -- NO NO ug/L 01/16/12 -- -- 100 NO NO NO NO NO ug/L 07/09/12 -- -- 100 dry NO dry NO NO ug/L 01/14/13 -- -- 100 NO NO NO NO NO ug/L 07/09/13 -- -- 100 NO NO NO NO NO ug/L 01/30/14 -- -- 100 NO NO NO NO NO ug/L 07/08/14 -- -- 100 dry NO dry NO NO ug/L 03/03/15 1.2 -- 100 NO 9.6 J NO 3.6 J NO ug/L 08/12/15 1.2 -- 100 dry NO dry NO NO ug/L 02/17/16 1.2 -- 100 NO NO NO NO NO ug/L 07/14/16 10 -- 100 NO NO NO NO NO ug/L 01/11/17 10 -- 100 NO NO NO NO 11 J ug/L 07/11/17 10 -- 100 dry dry NO NO NO ug/L 01/09/18 10 -- 100 NO NO NO NO 17 J ug/L 07/26/18 10 20 -- dry NO dry NO NO ug/L 01/30/19 10 20 -- NO NO NO NO NO ug/L 07/10/19 10 20 -- NO NO dry NO NO ug/L 01/30/20 10 20 -- NO NO NO NO NO ug/L 07/07/20 10 20 -- dry NO dry NO NO u /L 01/19/21 10 20 NO NO NO NO 25 2-Butanone ug/L 01/29/08 -- -- 100 NO NO NO NO NO Human Health Std. = 750,000 ug/L ug/L 07/17/08 -- -- 100 -- NO -- NO NO ug/L 02/27/09 -- -- 100 NO NO NO NO NO ug/L 07/16/09 -- -- 100 dry NO dry NO NO ug/L 01/04/10 -- -- 100 NO NO NO NO NO ug/L 07/01/10 -- -- 100 dry dry dry NO NO ug/L 01/13/11 -- -- 100 NO NO NO NO NO ug/L 07/21/11 -- -- 100 dry NO -- NO NO ug/L 01/16/12 -- -- 100 NO NO NO NO NO ug/L 07/09/12 -- -- 100 dry NO dry NO NO ug/L 01/14/13 -- -- 100 NO NO NO NO NO ug/L 07/09/13 -- -- 100 NO NO NO NO NO ug/L 01/30/14 -- -- 100 NO NO NO NO NO ug/L 07/08/14 -- -- 100 dry NO dry NO NO ug/L 03/03/15 1.3 -- 100 NO 3.9 J NO NO NO ug/L 08/12/15 1.3 -- 100 dry NO dry NO NO ug/L 02/17/16 1.3 -- 100 NO NO NO NO NO ug/L 07/14/16 1.3 -- 100 NO NO NO NO NO ug/L 01/11/17 1.3 -- 100 NO NO NO NO NO ug/L 07/11/17 1.3 -- 100 dry dry NO NO NO ug/L 01/09/18 1.3 -- 100 ND NO NO NO NO ug/L 07/26/18 1.3 5.0 - dry NO dry NO NO ug/L 01/30/19 1.3 5.0 - ND NO NO NO NO ug/L 07/10/19 1.3 5.0 -- NO NO dry NO NO ug/L 01/30/20 1.3 5.0 -- NO NO NO NO NO ug/L 07/07/20 1.3 5.0 -- dry NO dry NO NO u /L 01/19/21 1.3 5.0 NO NO NO NO NO 1,4-Dioxane (Human Health Std. = 0.35 ug/L) ug/L 07126/18 1.2 2.0 -- dry 5.4 dry 5.2 NO ug/L 01I30/19 1.2 2.0 -- NO 4.5 2.1 3.4 NO ug/L 07I10119 1.2 2.0 -- NO 8.0 dry 4.3 NO ug/L 01/30/20 1.2 2.0 -- NO 3.1 1.6 J 4.1 NO ug/L 07/07/20 0.8 2.0 -- dry 6.6 dry 4.0 NO u /L .1,19,21 0.8 2.0 0.83 J 4.9 3.0 4.6 NO 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. NO = not detected at or above the stated reporting limit 6. Surface Water Standards for NC Appendix I constituents based on Class C Freshwater Aquatic Life stream classification per 15A NCAC 2B. 7. (AL) = SW Standard is an action level 8. (N) = SW Standard is a narrative standard 9. -- = no data available 10. Bold = concentrations above Human Health or Chronic Surface Water Standard 11. Shaded and Bold = concentration above Acute and Chronic Surface Water Standards 12. Blanks = field, trip and laboratory blanks. 13. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/18/07 14. Data prior to 01/09/06 provided by Joyce Engineering, Inc. 15. The following dilutions were noted for the January 2021 event: Antimony/Thallium 2x all SW points 16. Hardness values were taken most recently during the January 2021 sampling event and are reported in mg/L: SW-1 = 40, SW-2 = 70, SW-3 = 89, SWd = 86. 7 V ❑ L ❑ E 6 of6 March 2021 2013788121.101 TABLE 7 Summary of Field Parameters in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upstream Downstream Parameter Units Date SWA SW-3 SW-2 SW-4 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 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 GOL❑ER 1of3 March 2021 2013788121.101 TABLE 7 Summary of Field Parameters in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upstream Downstream Parameter SW-1 SW-3 SW-2 SW-4 Units Date 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 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 GOL❑ER 2of3 March 2021 2013788121.101 TABLE 7 Summary of Field Parameters in Surface Water Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upstream Downstream Parameter SW-1 SW-3 SW-2 SW-4 Units Date Oxidation Reduction mV 01/29/08 165 202 214 182 Potential (Field) mV 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 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 m /L 01/19/21 9.72 12.45 11.92 13.47 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 GOL❑ER 3of3 Drawing l I ram_ J�ti\< 0 o C 3 o� 0 0 N_ W 00 M O N m Z 0 .3 0 g a Q c� N O N 06� 09L 0184--- �,- /,,x / i,27/ PROPERTY j ✓� �� BOUNDARY 78 \p \� 00 �3 \ O LFG--1 LFG-2A 'SW-1 G1 �o MW-8 - If 759.73 AMW-1 748.44 / j 747.69 � , IF \� ' IC�MW\�310 �� 739.26 , 740 SW-2 MW-4D ,I SW- Ep MW-4S 05 1 728.25\ I: MW-6 728.94 IN �.:. �AMW-2 725.44� � ► / J / ti RECLAMATION / LFG FACILITY Al MW-1 0 797.00 SCALE HOUSE 737.69 1 � r � M 735.76• MW-7D II � SB-3 _� W L514 \ I CD so § _ c \, Mani r- % 2 - 7g �\\ \ OW ER LINE -4 �� XISTING OVERHEAD P O ❑ Li I � oL_ h ,o I•ki SITE LOCATION MAP LEGEND O OG 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 739.26 GROUNDWATER ELEVATION ❑ SW-1 SURFACE WATER MONITORING POINT P-3 PROPOSED MONITORING WELL LOCATION 785.83 ® 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 NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET 3. GROUNDWATER ELEVATIONS MEASURED ON JANUARY 19, 2021. 4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND i EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL CONDITIONS. ` i 5. GROUNDWATER CONTOURS LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT LL 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. ` 6. THE GROUNDWATER ELEVATIONS FOR MW-4D AND MW-7D WERE NOT USED IN THE LL CONSTRUCTION OF GROUNDWATER CONTOURS. 7. f DRAWING BASED ON SITE PLAN PLAN PREPARED BY JOYCE ENGINEERING, INC DATED JULY 7, 2004. 8. UPDATED T P RAPHY IN VI INITY F LANDFILL PR VIDED FR M AERIAL URVEY PREPARED c BY COOPER AERIAL SURVEY COMPANY, DATE JANUARY 6, 2021. 0 200 400 > 9. HIGH POINT, NORTH CAROLINA 7.5-MINUTE QUADRANGLE MAP OBTAINED FROM US GEOLOGIC SURVEY, DATE AUGUST 7, 2019. F I �\ SCALE FEE 10. THE GROUNDWATER ELEVATIONS FOR MW_4D AND MW-7D WERE NOT USED IN THE � / CLIENT WASTE INDUSTRIES OF HIGH POINT, LLC / CONSULTANT YYYY-MM-DD 2021-02-23 / PREPARED BPG GO L D E R DESIGN NTT REVIEW DC GOLDER ASSOCIATES NC, INC. APPROVED RPK PROJECT CONSTRUCTION AND DEMOLITION DEBRIS LANDFILL AND L RECLAMATION FACILITY GUILFORD COUNTY, NORTH CAROLINA TITLE = GROUNDWATER CONTOUR MAP JANUARY 19, 2021 PROJECT No. Rev. FIGURE 2013788121 0 c 0 APPENDIX A Groundwater and Surface Water Sampling Logs I)o OLDER DATE; r % c� GROUNDWATER SAMPLING LOG Project Name: H_ Igh Point LF Project No./Phase No,; 2013788121 Well ID: MW-1 Sampler(s): Nicolas Te eda-Torres! Travis Martinez Well Diameter: 2 inches Initial Depth to Water: 1 7 feet Depth to Bottom: 29.15 feet Water Column Thickness: feet Pumping Rate: Q mUmin. System Volume: 962 Equipment: Turbidimeter, M ProPlus, WL Meter Dedicated BP, MP-15 --Iff�""--- Comments (weather conditions, color, type of sample, purge -water management, etc.): ❑ LX � -7 Signature: f"--- -V-- --Date: j - j ([� QA1QC Sign 04-`-R-Zc� [f Date, 6 't G0LDER Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: High Point LF P-3 2 inches 2%T2 feet �J" ;u mLimin. DATE: 1j 7_0 GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(s): Nicolas Tejeda-Torres! Travis Martinez Initial Depth to Water; 4 feet Water Column Thickness: feet System Volume: / Equipment: Turbidimeter, YSl Pro Plus, WZ Meter, peristaltic pump, battery pack Time pH S.U.) Sp. Cond. (us/cm) Turh (NTiJ Dis 07 (m /L) Temp. (°C) ORP (millivolts) DTW (feet) I S-�1 2-1 2-J. fq. I Z_c. 5� Sri 3 z �34 .� -Z13 1 1 3J 14 q 5 ZI I v €� 4, s 02 3 5 +5-' SLLV ip Comments (weather conditions, color, type of sample, purge -water management, etc.): /r Signature: /-,�� - 4A1QC Sign Off: Date: f � 2'J l 2 C ��'q Date: -3f 16 r zo oLDEP DATE: GROUNDWATER SAMPLING LOG Project Name: High Point LF Project No./Phase No.: 2013788121 Well ID: MW-2 Sampler(s): Nicolas Tejeda-Torres! Travis Martinez Well [diameter: 2 inches Initial Depth to Water: 42 feet Depth to Bottom: 18.62 feet Water Column Thickness: _12 1 feet Pumping Rate: 13L mL/min. System Volume: 909 Equipment: Turbidimeter, YSI ProPlus, WL Meter Dedicated BR MP-15 ® ® , ' ' (millivolts) Comments (weather conditions, color, type of sample, purge -water management, etc.): G6;"tart.( GOLDER Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: 7 Point LF MW-3 2 inches 30.60 feet r}_ mL/min. DATE: � - � 9 - 7_oz( GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(s): Nicolas Tejeda-Torres/ Travis Martinez Initial Depth to Water: I ko. feet Water Column Thickness: cJ feet System Volume: 1011 Equipment: Turbidimeter, YSI ProPlus, WL Meter Dedicated BP, MP-15 Sp. Cond. ------ ��----- Comments_fweather conditions, color, type of sample, purge -water management, etc.): Signature: Date: ❑AlQC Sign {w A' L.� Date: GOLDER Project Name: High Point l-F Well ID: MW-4S Well Diameter: 2 inches Depth to Bottom: PP.PO feet Pumping Rate: J mUmin. DATE: GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(s): Nicolas Tejeda-Torres/ Travis Martinez Initial Depth to Water: 3 t feet Water Column Thickness: J feet System Volume: 964 Equipment: Turbidimeter, YSI ProPlus, WL Meter Dedicated BP, MP-15 Time pH (S.U.) Sp. Cond. (US/cm) Tuna (NTU) Dis Ox (mg/L) Temp. (°C) ❑RP (millivolts) DTW (feet) 1 55 �qi, .8 8 (4Lo i I gci. q . l 11 S. ' .1 t 1A(, r3•0 G 5.,-'z 11 .5 y I z Y. 11 13 5A l 1 q 1 I _0 7- . l 5.3 E1 0 l fa _1 S i4.i I q 3 14y.14 I 1 51 S.Zb 1 iv. 1. IZ- ' - I Z' I 5.Z 1Gei. IZ. 4 1. 4 1Z.�? (. _5 bur 2a 5 z I I �6 3 1.40 Comments (weather conditions, color, type of sample, purge -water management, etc.): [-- Signature: - QAIQC Sign Off: Date: 1-19 2-02 Date: t4—U- ! 3,4( COLDER DATE: 11Z'(-Z "Z.. ( GROUNDWATER SAMPLING LOG Project Name: High Point LF Project No./Phase No.: 2013788121 Well ID: MW-5 Sampler(s): Nicolas Tejeda-Torres/ Travis Martinez Well Diameter: 2 inches Initial Depth to Water: 10.1s feet Depth to Bottom: 27.14 feet Water Column Thickness: feet Pumping Rate: 100 mVmin. System Volume: 905 Equipment: Turbidimeter, YS! ProP1us, WL Meter Dedicated BP, MP-15 ®Sp. Cond. }• Comments (weather conditions, color, type of sample, purge -water management, etc.). Signature: Date: i / 2 o Z. QAIQC 5ic(n Off: ` rI tety-.t r` � Date: -� -(�- z I (ed GOLDER Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: High Point LF MW-fi 2 inches 18.00 feet 12-0 -01QQ mUmin. DATE: l i ( 9 1'Q'3-Z( GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(S): Nicolas Tejeda_Torres/ Travis Martinez Initial Depth to Water: b.2-9 feet Water Column Thickness: ) feet System Volume: 817 Equipment: Turbidimeter, YSl Profts, WL Meter Dedicated BP. MP-15 Time pH (S.U.) Sp. Cond. (US/cm) Turb (NTU) Dis Oz (mg/L) Temp. (°C) ORP (millivolts) DTW (feet) 13S 6. � ��, V. 5 1Z - i. 3,_1 i .0 1 O';3 Q_ & - , - 1 R 1 cr 0 9 ()J. P., 9.21 3.6 Zoo , z 1�. 4 5, 1�w 2 (. Ci0 .boa I'd S ZOIIO 14. 0 I 12 -, q- i +' 4t 0,16 12.s �i. � '► i Z. L a, f I Z. l o 17-.67 Comments (weather conditions, color, type of sample, purge -water management, etc.): Signature: Date: ( q QAlQC Sign Date: 3-& -e1 GOLDER Project Name: High Point LF Well ID: MW-7S Well Diameter: 2 inches Depth to Bottom: 4770 feet Pumping Rate: l mUmin DATE: , 1 LJ L1 GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Samplers): Nicolas Te'eda-Torres! Travis Martinez Initial Depth to Water: Z5_33 feet Water Column Thickness: 1. feet System Volume: 1104 Equipment: Turbidimeter, YSI PrePlus, WL Meter Dedicated SP, MP-15 Sp. Cond. Dis 02 Comments Signature: QA/QC Sign conditions, color, type of sample, purge -water management, etc.) - Date: l IZ-01-2 .c-z Date- 3- Z GOLDER Project Name. - Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: High Point LF MW-8 2 inches 28,10 feet 180 ; J'f p mVmin. DATE: f - i -uZ I GROUNDWATER SAMPLING LOG Project No./Phase No.: 2043788121 Sampler(s): Nicolas Tea -Torres/ Travis Martinez Initial Depth to Water: Z. 8'1 feet Water Column Thickness: _ Z!—L feet System Volume: 915 Equipment: Turbidimeter, YSI ProPlus, WL Meter Dedicated BP. MP-15- - Sp. Cond. ® •4 *•• • r�®IL1ai�E�® Lopil Comments (weather conditions, color, type of sample, purge -water management, etc.): Signature: QAIQC Sign Of4 Date: r - ( � -Z-6 t Date: 9 l l(, -Z ( GOLDER Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: High Point L.F AMW-1 2 inches 15.00 feet NO mUmin. DATE: 2bli. u LA GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013768121 Sampler(s): Nicolas Tejeda-Torres! Travis Martinez Initial Depth to Water: 2, feet Water Column Thickness: 01, 3 feet System Volume: 895 Equipment: Turbidimeter, YS! ProPlus, WL Meter -- Dedicated BP, MP-15 . Cond. '* `•' Comments (weather conditions, color, type of sample, purge -water management, etc.): QAIQC Sign Off: Date: 3j dip /Zed GOLDER Project Name: Well ID: _ Well Diameter: Depth to Bottom: Pumping Rate: High Point LF AMW-2 2 inches 15.00 feet J mVmin DATE: 1 11 GROUNDWATER SAMPLING LOG Project No./Phase No.: 2013788121 Sampler(s): Nicolas Tejeda-Torres! Travis Martinez Initial Depth to Water: 5.11 feet Water Column Thickness: feet System Volume: 895 Equipment: Turbidimeter, Y,SI ProPlus, WNL Meter Dedicated BP, MP-15 Comments (weather conditions, color, type of sample, purge -water management, etc.): Z� Signature: zk�_. 2_1_1 - Date: 0AIQC Sigr _ I Date: 31 r&i- I GOLDER DATE: i 612-e62 [ SURFACE WATER SAMPLING LOG Project Name: High Point LF Project No./Please No.: 2013788121 Sample ID: SW-1 Sampler(s): Nicolas Tejeda-Torres / Travis Martinez Sampling Location: Equipment: YSI, Turbidimeter,,7�„�;, Time pH S.U. A Sp. Cond. us/cm L{.1 Turn. ntu D is. 02 mg/I_, Temp, OC 0RP my j. { WA Surface Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): R(.4AaiZt do tLAA1-L Signature: QA/QC Sig Off: ( Date: 4 taLo-l./ Date: -3- �4 . -I l DATE: d(6-y21&Z ( O L D E R SURFACE WATER SAMPLING LOG Project Name: High Paint LF Project No./Phase No.: 2013788121 Sample ID: SW-2 Sampler(s): Nicolas Tejeda-Torres I Travis Martinez Sampling Location: Equipment: YSI, Turbidimeter Time pH S.U. Sp. Cond. uS/cm�. Turb. ntu Dis.O2 mg/L pj Temp. 0C �# ORP my. / f Surface Water Sampling Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): .1:! .•.1,��„n. �, n,,.. 1. Signature: IZ Date: f j QAlQC Sigrid 4 Date: 3--, 6-11 GOLDER DATE: (ci SURFACE WATER SAMPLING LOG Project Name: High Point LF Project No./Phase No.: 2013788121 Sample ID: SW-3 5ampler(s): Nicolas Tejeda-Torres 1 Travis Martinez Sampling Location: Equipment: YSI, Turbidimeter Surface Water Sampling Location Sketch Time S.U.pH _-�fo Sp. Cond. uSlcm ZM. Turb. ntu , Dis. 02 mg1L Temp. aC DRP mV Comments (sample methodology, weather conditions, color, silt, etc.): Signature: Date: ()� QAIQC Sign Off: �Q - Date: GOLDER DATE: SURFACE WATER SAMPLING LOG Project Name: High Point LF Project No./Phase No.: 2013788121 Sample ID: SW-4 Sampler(s): Nicolas Tejeda-Torres 1 Travis Martinez Sampling Location: Equipment: YSI, Turbidimeter Time�,i pH S.G. Sp. Cond. uSlcm, (a Turb. ntu Dis.42 mglL rr�� J Temp. aC ORP rn V f Comments (sample method Signature: Surface Water Sampling Location Sketch �sy �7j \fir Z , weather conditions, color, silt, etc.): QAIQC Sign Off: { Date: Z Date: LG — ks"100 GOLDER DATE: 2/24/2021 GROUNDWATER SAMPLING LOG Project Name: High Point LF Project /Phase No.: 2013788121 Well ID: aI �_; - � Sampler(s): Darren Cox Well Diameter: 2 inches Initial Depth to Water: f . Z feet Depth to Bottom: Z6. f o feet Water Column Thickness: feet Pumping Rate: ]I,() mLlmin System Volume! mL Well Location: Equipment: 6/YSI Pro Plus, Hach 2100Q, Water Level Meter, peristaltic pump/portable bladde dedicated BP +1- 0.1 +1- 5% <10 +1-10% or 0.2 +1- 10 �-M � will" 0 -- Comments (weather conditions, color, type of sample, purge -water management, etc.): Purge: 00 Weather: SJfJAv ~ Signature:- Date: Li -?-I QpJQC Sign Off: ' 2 Date: ' -f 1 k01* G O L D E R DATE. 2/24/2021 GROUNDWATER SAMPLING LOG Project Name: High Point LF Project !Phase No.: 2013788121 Well ID: _ - An w - 1 Sampler(s): Darren Cox Well Diameter: 2 inches Initial Depth to Water: p feet Depth to Bottom: jS,o;,_ feet Water Column Thickness: �, feet Pumping Rate: 110 mUmin System Volume: Oy; mL Well Location: Equipment: 6/YS1 Pro Plus, Hach 210OQ, Water Level Meter, peristaltic pump/portable bladde dedicated BP +/- 0.1 +/- 5% { 10 +I- 10% or 0.2 +/_ 10 ®®+0 .-; M -- Comments (weather conditions, color, type of sample, purge -water management, etc.): Purge: /0 7 Weather: 50ivti { �7s- Signature: Date: OAJOC Sign Off: �'i—' L '?c-� Date: 1 L' • �- ! APPENDIX B January 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 Monday, February 1, 2021 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 20137881, Project Name/Desc: GFL Env - High Point LF, LLC ENCO Workorder(s): CE00534 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Thursday, January 21, 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 24 PROJECT NARRATIVE Date: February 1, 2021 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Lab ID: CE00534 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 and Acetone; however, these analytes were not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 2-Butanone, 4-Methyl-2-pentanone, Acetone, Tetrahydrofuran, and Vinyl acetate; however, these analytes were not detected in the associated samples. The spike recoveries for 1,1-Dichloroethene, Chlorobenzene, Toluene, and Trichloroethene were outside control limits for the MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. The spike recoveries for Arsenic, Iron, and Manganese were outside control limits for the MS, MSD, and 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 QC batches were approved based on acceptable LCS recovery of these analytes. Quality Control Remarks No Comments Other Comments The Benzene detection in sample 4116-AMW-1 was confirmed via reanalysis. The original results are reported and the reanalysis results are available upon request. 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 24 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-AMW3 Lab ID: CE00534-01 Sampled: 01/20/21 12:55 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/17/21 01/22/21 12:29 01/23/21 01:26 EPA 310.2 NO PREP 02/03/21 01/27/21 10:21 01/27/21 12:13 EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 10:07 EPA 6020B EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 15:18 EPA 7470A EPA 7470A 02/17/21 01/25/21 09:39 01/26/21 13:01 EPA 8260D EPA 5030B_MS 02/03/21 01/25/21 00:00 01/25/21 14:49 EPA 8260D EPA 5030B_MIS 02/03/21 01/26/21 12:32 01/26/21 22:48 SM 254OC-2011 NO PREP 01/27/21 01/27/21 08:36 01/27/21 08:36 Client ID: 4116-AMW2 Lab ID: CE00534-02 Sampled: 01/20/21 13:19 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/17/21 01/22/21 12:29 01/23/21 01:44 EPA 310.2 NO PREP 02/03/21 01/27/21 10:21 01/27/21 12:14 EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 10:10 EPA 6020B EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 15:22 EPA 7470A EPA 7470A 02/17/21 01/25/21 09:39 01/26/21 13:03 EPA 8260D EPA 503013_MS 02/03/21 01/25/21 00:00 01/25/21 15:14 EPA 8260D EPA 503013_MS 02/03/21 01/26/21 12:32 01/26/21 23:15 SM 254OC-2011 NO PREP 01/27/21 01/27/21 08:36 01/27/21 08:36 Client ID: 4316-AMW2 Lab ID: CE00534-02RE1 Sampled: 01/20/21 13:19 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 02/03/21 01/28/21 13:29 01/28/21 15:33 Client ID: P-3 Lab ID: CE00534-03 Sampled: 01/20/21 14:48 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 13:36 EPA 6020B EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 15:27 EPA 7470A EPA 7470A 02/17/21 01/25/21 09:39 01/26/21 13:10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 24 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-AMW3 Lab ID: CE00534-01 Analvte Results Flag MDL Q Units Method Notes 1,4-Dioxane 35 0.80 2.0 ug/L EPA 8260D Barium - Total 417 1.10 10.0 ug/L EPA 6010D Benzene 1.2 0.15 1.0 ug/L EPA 8260D Chloride 96000 2200 5000 ug/L EPA 300.0 Chromium - Total 5.94 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 15.5 1.40 10.0 ug/L EPA 6010D Iron - Total 14900 22.0 50.0 ug/L EPA 6010D Manganese - Total 11100 1.50 10.0 ug/L EPA 6010D Nickel- Total 4.18 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 33000 2900 5000 ug/L EPA 300.0 Thallium - Total 0.378 J 0.220 2.00 ug/L EPA 6020E Total Alkalinity as CaCO3 700000 D 70000 75000 ug/L EPA 310.2 Total Dissolved Solids 970000 50000 50000 uq/L SM 2540C-2011 I Client ID: 4116-AMW2 Lab ID: CE00534-02 Analvte Results Flag MDL 4 Units Method Notes 1,4-Dioxane 69 0.80 2.0 ug/L EPA 8260D Barium - Total 199 1.10 10.0 ug/L EPA 6010D Chloride 76000 D 4400 10000 ug/L EPA 300.0 Chromium - Total 3.15 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 10.3 1.40 10.0 ug/L EPA 6010D Iron - Total 4970 22.0 50.0 ug/L EPA 6010D Manganese - Total 2810 1.50 10.0 ug/L EPA 6010D Nickel - Total 3.35 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 37000 D 5800 10000 ug/L EPA 300.0 Thallium - Total 0.401 J 0.220 2.00 ug/L EPA 6020E Total Alkalinity as CaCO3 420000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 760000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-AMW2 Lab ID: CE00534-02RE1 Analvte Results Flag MDL Q Units Method Notes Acetone 20 10 20 ug/L EPA 8260D Benzene 1.0 0.15 1.0 uq/L EPA 8260D Client ID: P-3 Lab ID: CE00534-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 57.3 1.10 10.0 ug/L EPA 6010D Cadmium - Total 2.76 0.360 1.00 ug/L EPA 6010D Chromium - Total 1.42 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 2.25 J 1.40 10.0 ug/L EPA 6010D Iron - Total 177 22.0 50.0 ug/L EPA 6010D Manganese - Total 320 1.50 10.0 ug/L EPA 6010D Nickel - Total 2.74 J 2.20 10.0 ug/L EPA 6010D Thallium - Total 0.520 J 0.220 2.00 ug/L EPA 6020E FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 24 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CE00534-01 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 12:55 Work Order: CE00534 Project: GFL Env - High Point LF, LLC Sampled By: Nicolas Tejada 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 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA26015 EPA 8260D 01/26/21 22:48 RKY QL-02, QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1A26015 EPA 8260D 01/26/21 22:48 RKY QV-01 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1A26015 EPA 8260D 01/26/21 22:48 RKY QV-01 Acetone [67-64-1]A 10 U ug/L 1 10 20 1A26015 EPA 8260D 01/26/21 22:48 RKY QL-02, QV-01 Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 IA26015 EPA 8260D 01/26/21 22:48 RKY Benzene [71-43-2]A 1.2 ug/L 1 0.15 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 1A26015 EPA 8260D 01/26/21 22:48 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY QV-01 Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 IA26015 EPA 8260D 01/26/21 22:48 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1A26015 EPA 8260D 01/26/21 22:48 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 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CE00534-01 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 12:55 Work Order: CE00534 Project: GFL Env - High Point LF, LLC Sampled By: Nicolas Tejada 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 1A26015 EPA 8260D 01/26/21 22:48 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1A26015 EPA 8260D 01/26/21 22:48 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A26015 EPA 8260D 01/26/21 22:48 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 48 1 50.0 96 % 53-136 IA26015 EPA 8260D 01126121 22:48 RKY Dlbromofluoromethane 49 1 50.0 97 % 67-129 IA26015 EPA 8260D 01126121 22:48 RKY Toluene-d8 59 1 50.0 118 % 59-134 IA26015 EPA 8260D 01126121 22:48 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 1A25012 EPA 7470A 01/26/21 13:01 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 15:18 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Barium [7440-39-3]^ 417 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:07 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:07 JDH Chromium [7440-47-3]^ 5.94 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Cobalt[7440-48-4]^ 15.5 ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Iron [7439-89-6]^ 14900 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Manganese [7439-96-5]1 31100 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Nickel[7440-02-O]^ 4.18 J ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Thallium [7440-28-0]^ 0.378 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 15:18 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:07 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:07 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]^ 96000 ug/L 1 2200 5000 1A22015 EPA 300.0 01/23/21 01:26 LJI Sulfate as SO4 [14808-79-8]^ 33000 ug/L 1 2900 5000 1A22015 EPA 300.0 01/23/21 01:26 LJI Total Alkalinity as CaCO3 [471-34-1]^ 700000 D ug/L 5 70000 75000 1A27022 EPA 310.2 01/27/21 12:13 JAH Total Dissolved Solids^ 970000 ug/L 1 50000 50000 1A27003 SM 254OC-2011 01/27/21 08:36 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CE00534-01 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 12:55 Work Order: CE00534 Project: GFL Env - High Point LF, LLC Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 35 ug/L 1 0.80 2.0 1A25037 EPA 8260D 01/25/21 14:49 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.9 1 5.00 118 % 75-125 IA25037 EPA 8260D 01125121 14:49 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 24 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CE00534-02 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 13:19 Work Order: CE00534 Project: GFL Env - High Point LF, LLC Sampled By: Nicolas Tejada 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 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA28027 EPA 8260D 01/28/21 15:33 RKY QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IA28027 EPA 8260D 01/28/21 15:33 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 IA28027 EPA 8260D 01/28/21 15:33 RKY QV-01 Acetone [67-64-1]A 20 ug/L 1 10 20 IA28027 EPA 8260D 01/28/21 15:33 RKY Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 IA28027 EPA 8260D 01/28/21 15:33 RKY Benzene [71-43-2]A 1.0 ug/L 1 0.15 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 IA26015 EPA 8260D 01/26/21 23:15 RKY QV-01 Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 IA28027 EPA 8260D 01/28/21 15:33 RKY Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 IA28027 EPA 8260D 01/28/21 15:33 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 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CE00534-02 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 13:19 Work Order: CE00534 Project: GFL Env - High Point LF, LLC Sampled By: Nicolas Tejada 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 1A28027 EPA 8260D 01/28/21 15:33 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 51 1 50.0 102 % 53-136 IA26027 EPA 6260D 01/28/21 15:33 RKY Dlbromofluoromethane 48 1 50.0 96 % 67-129 IA26027 EPA 6260D 01126121 15:33 RKY Toluene-& 61 1 50.0 122 % 59-134 IA26027 EPA 6260D 01128121 15:33 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 1A25012 EPA 7470A 01/26/21 13:03 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 15:22 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Barium [7440-39-3]^ 199 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:10 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:10 JDH Chromium [7440-47-3]^ 3.15 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Cobalt[7440-48-4]^ 10.3 ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Iron [7439-89-6]^ 4970 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Manganese [7439-96-5]1 2810 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Nickel[7440-02-O]^ 3.35 J ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Thallium [7440-28-0]^ 0.401 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 15:22 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:10 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:10 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]^ 76000 D ug/L 2 4400 10000 1A22015 EPA 300.0 01/23/21 01:44 LJI Sulfate as SO4 [14808-79-B]^ 37000 D ug/L 2 5800 10000 1A22015 EPA 300.0 01/23/21 01:44 LJI Total Alkalinity as CaCO3 [471-34-1]^ 420000 D ug/L 10 140000 150000 1A27022 EPA 310.2 01/27/21 12:14 JAH Total Dissolved Solids^ 760000 ug/L 1 50000 50000 1A27003 SM 254OC-2011 01/27/21 08:36 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 24 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CE00534-02 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 13:19 Work Order: CE00534 Project: GFL Env - High Point LF, LLC Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flaa Units LF MDL POLL Batch Method Analyzed AX Notes 1,4-Dioxane [123-91-1]^ 69 ug/L 1 0.80 2.0 1A25037 EPA 8260D 01/25/21 15:14 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.2 1 5.00 105 % 75-125 IA25037 EPA 8260D 01/25/21 15:14 KKW Description: P-3 Lab Sample ID:CE00534-03 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 14:48 Work Order: CE00534 Project: GFL Env - High Point LF, LLC Sampled By: Nicolas Tejada 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 1A25012 EPA 7470A 01/26/21 13:10 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 15:27 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Barium [7440-39-3]^ 57.3 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 13:36 JDH Cadmium [7440-43-9]^ 2.76 ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 13:36 JDH Chromium [7440-47-3]^ 1.42 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Cobalt[7440-48-4]^ 2.25 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Iron [7439-89-6]^ 177 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Manganese [7439-96-5]^ 320 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Nickel[7440-02-O]^ 2.74 J ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Thallium [7440-28-0]^ 0.520 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 15:27 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 13:36 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A26015 - EPA 5030E MS Blank (1A2601S-BLKI) Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 15:57 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 16 3 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 0.41 3 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 53 ug/L 50.0 105 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 11 Of 24 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A26015 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (1A26015-BLK1) Continued Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 15:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 49 u91L 50.0 97 67-129 Toluene-& 59 u91L 50.0 118 59-134 LCS (3A26015-BSI) Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 14:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 112 75-133 Benzene 20 1.0 ug/L 20.0 98 80-134 Chlorobenzene 20 1.0 ug/L 20.0 102 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 21 1.0 ug/L 20.0 105 74-120 Matrix Spike (1A26015-MS1) Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 14:34 Source: CE00535-02 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 124 75-133 Benzene 22 1.0 ug/L 20.0 1.9 100 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 111 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 108 74-120 Matrix Spike Dup (1A26015-MSDI) Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 15:01 Source: CE00535-02 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch IA28027 - EPA 5030B MS Result 27 25 24 24 25 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 1.9 0.17 U 0.14 U 0.15 U %REC 137 116 122 121 125 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 10 13 9 13 15 RPD Limit 20 17 16 17 22 Notes QM-07 QM-07 QM-07 QM-07 Blank (3A28027-BLK3) Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 15:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1,1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A28027 - EPA 5030E MS - Continued Blank (1A28027-BLK1) Continued Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 15:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 49 u91L 50.0 97 53-136 Dibromofluoromethane 49 u91L 50.0 98 67-129 Toluene-d8 61 u91L 50.0 123 59-134 LCS (1A28027-BSI) Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 13:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 103 75-133 Benzene 19 1.0 ug/L 20.0 94 80-134 Chlorobenzene 21 1.0 ug/L 20.0 104 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 20 1.0 ug/L 20.0 101 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A28027 - EPA 5030E MS - Continued Matrix Spike (1A28027-MS1) Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 13:43 Source: CE01183-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 105 75-133 Benzene 20 1.0 ug/L 20.0 0.15 U 99 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 108 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 102 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 108 74-120 Matrix Spike Dup (1A28027-MSD1) Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 14:10 Source: CE01183-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 99 75-133 7 20 Benzene 19 1.0 ug/L 20.0 0.15 U 96 80-134 3 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 5 16 Toluene 19 1.0 ug/L 20.0 0.14 U 97 71-120 5 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 99 74-120 8 22 Batch IA28034 - EPA 5030B MS Blank (1A28034-BLK3) Prepared: 01/28/2021 14:31 Analyzed: 01/29/2021 03:23 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 Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 24 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch ZA2BO34 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (1A28034-BLK1) Continued Prepared: 01/28/2021 14:31 Analyzed: 01/29/2021 03:23 Analvte Result Flaq POL Units cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 51 u9/L 50.0 102 53-136 Dibromofluoromethane 46 u9/L 50.0 96 67-129 Toluene-d8 61 u9/L 50.0 121 59-134 LCS (3A28034-BSI) Prepared: 01/28/2021 14:31 Analyzed: 01/29/2021 01:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 95 75-133 Benzene 18 1.0 ug/L 20.0 90 80-134 Chlorobenzene 20 1.0 ug/L 20.0 98 80-120 Toluene 18 1.0 ug/L 20.0 92 71-120 Trichloroethene 20 1.0 ug/L 20.0 102 74-120 Matrix Spike (1A28034-MS1) Prepared: 01/28/2021 14:31 Analyzed: 01/29/2021 02:01 Source: CE01249-07 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 100 75-133 Benzene 19 1.0 ug/L 20.0 0.15 U 96 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 103 80-120 Toluene 19 1.0 ug/L 20.0 0.14 U 97 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 104 74-120 Matrix Spike Dup (1A28034-MSD1) Prepared: 01/28/2021 14:31 Analyzed: 01/29/2021 02:29 Source: CE01249-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 102 75-133 2 20 Benzene 19 1.0 ug/L 20.0 0.15 U 94 80-134 2 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 99 80-120 4 16 Toluene 19 1.0 ug/L 20.0 0.14 U 97 71-120 0.2 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 101 74-120 3 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 15 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch IA25012 - EPA 7470A Blank (1A25012-BLK3) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:04 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 (3A25012-BSI) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.92 0.200 ug/L 5.00 98 80-120 Matrix Spike (1A25012-MS1) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:11 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.17 0.200 ug/L 5.00 0.150 U 83 75-125 Matrix Spike Dup (1A25012-MSD1) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:13 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.07 0.200 ug/L 5.00 0.150 U 81 75-125 2 25 Post Spike (1A25012-PSI) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:56 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.62 0.200 ug/L 5.00 0.0440 92 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch IA21035 - EPA 3005A Blank (1A21035-BLK3) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:19 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 (3A23035-BSI) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1A21035 - EPA 3005A - Continued LCS (1A21035-BSI) Continued Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 207 10.0 ug/L 200 103 80-120 Barium 212 10.0 ug/L 200 106 80-120 Beryllium 20.5 1.00 ug/L 20.0 102 80-120 Cadmium 20.4 1.00 ug/L 20.0 102 80-120 Chromium 210 10.0 ug/L 200 105 80-120 Cobalt 213 10.0 ug/L 200 107 80-120 Copper 209 10.0 ug/L 200 105 80-120 Iron 1040 50.0 ug/L 1000 104 80-120 Lead 216 10.0 ug/L 200 108 80-120 Manganese 209 10.0 ug/L 200 105 80-120 Nickel 213 10.0 ug/L 200 106 80-120 Selenium 213 10.0 ug/L 200 107 80-120 Silver 214 10.0 ug/L 200 107 80-120 Vanadium 209 10.0 ug/L 200 104 80-120 Zinc 214 10.0 ug/L 200 107 80-120 Matrix Spike (1A23035-MS1) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:39 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 26.5 10.0 ug/L 200 7.60 U 13 75-125 QM-07 Barium 835 10.0 ug/L 200 657 89 75-125 Beryllium 18.3 1.00 ug/L 20.0 0.160 U 91 75-125 Cadmium 16.0 1.00 ug/L 20.0 0.360 U 80 75-125 Chromium 189 10.0 ug/L 200 7.12 91 75-125 Cobalt 175 10.0 ug/L 200 8.19 84 75-125 Copper 180 10.0 ug/L 200 1.60 U 90 75-125 Iron 23400 50.0 ug/L 1000 22800 57 75-125 QM-07 Lead 173 10.0 ug/L 200 3.10 U 86 75-125 Manganese 14700 10.0 ug/L 200 14600 44 75-125 QM-07 Nickel 177 10.0 ug/L 200 2.20 U 88 75-125 Selenium 161 10.0 ug/L 200 6.20 U 80 75-125 Silver 193 10.0 ug/L 200 1.90 U 96 75-125 Vanadium 187 10.0 ug/L 200 1.40 U 94 75-125 Zinc 177 10.0 ug/L 200 4.40 U 89 75-125 Matrix Spike Dup (1A21035-MSDS) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:42 111 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 24.5 10.0 ug/L 200 7.60 U 12 75-125 7 20 QM-07 Barium 863 10.0 ug/L 200 657 103 75-125 3 20 Beryllium 18.6 1.00 ug/L 20.0 0.160 U 93 75-125 2 20 Cadmium 16.2 1.00 ug/L 20.0 0.360 U 81 75-125 1 20 Chromium 194 10.0 ug/L 200 7.12 93 75-125 2 20 Cobalt 180 10.0 ug/L 200 8.19 86 75-125 2 20 Copper 184 10.0 ug/L 200 1.60 U 92 75-125 2 20 Iron 24600 50.0 ug/L 1000 22800 176 75-125 5 20 QM-07 Lead 178 10.0 ug/L 200 3.10 U 89 75-125 3 20 Manganese 15200 10.0 ug/L 200 14600 316 75-125 4 20 QM-07 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1A21035 - EPA 3005A - Continued Matrix Spike Dup (1A21035-MSDI) Continued Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:42 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 181 10.0 ug/L 200 2.20 U 90 75-125 2 20 Selenium 176 10.0 ug/L 200 6.20 U 88 75-125 9 20 Silver 197 10.0 ug/L 200 1.90 U 98 75-125 2 20 Vanadium 192 10.0 ug/L 200 1.40 U 96 75-125 2 20 Zinc 183 10.0 ug/L 200 4.40 U 92 75-125 3 20 Post Spike (1A21035-PSI) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:45 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.0330 0.0100 mg/L 0.200 -0.147 17 80-120 QM-08 Barium 0.833 0.0100 mg/L 0.200 0.657 88 80-120 Beryllium 0.0188 0.00100 mg/L 0.0200 -0.000210 94 80-120 Cadmium 0.0165 0.00100 mg/L 0.0200 -0.00109 82 80-120 Chromium 0.193 0.0100 mg/L 0.200 0.00712 93 80-120 Cobalt 0.178 0.0100 mg/L 0.200 0.00819 85 80-120 Copper 0.181 0.0100 mg/L 0.200 -0.00898 91 80-120 Iron 23.5 0.0500 mg/L 1.00 22.8 62 80-120 QM-08 Lead 0.175 0.0100 mg/L 0.200 0.00174 87 80-120 Manganese 14.5 0.0100 mg/L 0.200 14.6 NR 80-120 QM-08 Nickel 0.181 0.0100 mg/L 0.200 0.00215 89 80-120 Selenium 0.169 0.0100 mg/L 0.200 -0.0190 85 80-120 Silver 0.197 0.0100 mg/L 0.200 -0.00163 99 80-120 Vanadium 0.190 0.0100 mg/L 0.200 -0.00316 95 80-120 Zinc 0.182 0.0100 mg/L 0.200 0.00191 90 80-120 Batch IA21036 - EPA 3005A Blank (3A21036-BLK3) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 14:44 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 (3A23036-BSI) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 14:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.9 1.00 ug/L 20.0 105 80-120 Selenium 20.4 1.00 ug/L 20.0 102 80-120 Thallium 20.8 1.00 ug/L 20.0 104 80-120 Matrix Spike (3A23036-MS3) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 15:01 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 42.5 2.00 ug/L 40.0 0.740 U 106 75-125 Selenium 40.7 2.00 ug/L 40.0 1.82 U 102 75-125 Thallium 38.5 2.00 ug/L 40.0 0.259 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 18 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1A21036 - EPA 3005A - Continued Matrix Spike Dup (1A21036-MSDS) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 15:05 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 41.7 2.00 ug/L 40.0 0.740 U 104 75-125 2 20 Selenium 42.4 2.00 ug/L 40.0 1.82 U 106 75-125 4 20 Thallium 38.7 2.00 ug/L 40.0 0.259 96 75-125 0.5 20 Post Spike (SA21036-PS1) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 15:10 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.4 1.00 ug/L 20.0 0.0688 107 75-125 Selenium 22.1 1.00 ug/L 20.0 0.515 108 75-125 Thallium 19.6 1.00 ug/L 20.0 0.130 97 75-125 Classical Chemistry Parameters - Quality Control Batch IA22015 - NO PREP Blank (3A22015-BLK3) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 21:37 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (1A22015-BS1) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 21:54 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 48000 5000 ug/L 50000 97 90-110 Sulfate as SO4 48000 5000 ug/L 50000 96 90-110 Matrix Spike (1A22015-MS1) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 22:30 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 180000 10000 ug/L 40000 130000 115 90-110 QM-07 Sulfate as SO4 56000 10000 ug/L 40000 22000 86 90-110 QM-07 Matrix Spike (3A22015-MS2) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 23:58 Source: CE00209-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 36000 5000 ug/L 20000 14000 108 90-110 Sulfate as SO4 18000 5000 ug/L 20000 3100 76 90-110 QM-07 Matrix Spike Dup (1A22015-MSD1) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 22:47 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 180000 10000 ug/L 40000 130000 116 90-110 0.2 10 QM-07 Sulfate as SO4 56000 10000 ug/L 40000 22000 85 90-110 0.7 10 QM-07 Batch IA27003 - NO PREP FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch IA27003 - NO PREP - Continued Blank (1A27003-BLKI) Prepared & Analyzed: 01/27/2021 08:36 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 (1A27003-BS1) Prepared & Analyzed: 01/27/2021 08:36 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 980 50 mg/L 1000 98 80-120 Duplicate (1A27003-DUP3) Prepared & Analyzed: 01/27/2021 08:36 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 1400000 50000 ug/L 1400000 0.3 20 Batch IA27022 - NO PREP Blank (1A27022-BLK1) Prepared: 01/27/2021 10:21 Analyzed: 01/27/2021 12:08 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 (1A27022-BS1) Prepared: 01/27/2021 10:21 Analyzed: 01/27/2021 12:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 97 15 mg/L 100 97 80-120 Matrix Spike (3A27022-MS3) Prepared: 01/27/2021 10:21 Analyzed: 01/27/2021 12:10 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1400000 150000 ug/L 400000 1000000 78 80-120 QM-07 Matrix Spike Dup (1A27022-MSDS) Prepared: 01/27/2021 10:21 Analyzed: 01/27/2021 12:10 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1400000 150000 ug/L 400000 1000000 84 80-120 2 25 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IA25037 - EPA 5030E MS Blank (1A25037-BLK1) Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 10:32 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 5.3 ug/L 5.00 107 75-125 LCS (1A25037-BSI) Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 10:07 Spike Source %REC RPD Analvte Result Flaq Q 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 20 of 24 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IA25037 - EPA 5030E MS - Continued LCS (1A25037-BS1) Continued Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 10:07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 20.0 125 80-133 Toluene-d8 6.0 ug/L 5.00 120 75-125 Matrix Spike (1A25037-MS1) Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 18:11 Source: AD08269-39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 20.0 0.80 U 122 80-133 Toluene-d8 5.3 ug/L 5.00 106 75-125 Matrix Spike Dup (3A25037-MSD1) Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 18:36 Source: AD08269-39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 20.0 0.80 U 120 80-133 1 19 Toluene-d8 5.2 ug/L 5.00 104 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 Of 24 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. 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). 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 22 of 24 o 3 m to 31 n � a i9 � n w ro ro � a � 0 3. m J d ` 3 d m m a 3 0 c m m c m 33 n m a *J m Ei 3 3 3 M m M m, 00 ��:'M U3 q a_ n� m a - CD 0 0 0 ro m = m c w N n C? ` 6 [D a m w 0) m Z w w L1J a m yJ w m' w 0 GQ$1 m t� X w LTD N y m (A w x T � m W r u W P7 A m v �11 00 77 V 'O 795i n o � m Z � Z � 3 b r .� ci �D a n VOD � A n O 0 4 3 X — eR, r ro � pT n r r �°'o 0 S 6 c rn � a m a 1 82BDD Appendbt 1,82800 A&A4,Be,He,C4,Co,Cr,Cu,F*,Mn,Nl,Pb, v N AlWiNty 310_2 Chloride 300,TD$ m O 7' D Sa N m Suffate 300 m N' t n to � m m m 0 o CD � m I� D M O CD @ B mCL a C r— C17 CDgy C m � o � a N m Page 23 of 24 Sample Preservation Verification ENCO Cary Work Order: CE00534 Project: GFL Env - High Point LF, LLC Client: Golder Associates, Inc. (G0007) Project #: 20137881 Logged In: 21-Jan-21 11:36 Logged By: John C King Preservation Check Performed By: Date/Time: i 21D l � CE00534-01 Cont Type Pres.(i Requirement pH Checked 1 In Control H Adjusted Date/Tim P Adjusted reagent Used/Carnments B 250mLP+HNO3 <2 Y) / N 1 NA I Y / N J NA CE00534-02 CE00534-03 Cont (Type A I250rnLP+HNO3 Reagent Name ID 1 2 pH Strip I D: _(46'1�d j, s (pH) pH Checked / pH Adjusted irement ii Control <2 / N / NA Y 1 �1.11 NA Reagent Name ID 3 4 Jate/ 1 Ime Adjusted Reagent Used/Comments Reagent Used/Comments Rea ent Name ID 5 6 Page 24 of 24 C:IELM NTIPrintlwko_PreservationC heck, rpt WORK ORDER Printed: 1/25/2021 8:53:25AM CE00534 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: 20137881 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: John C King Date Received: 21-Jan-21 10:30 Logged In By: John C King Date Logged In: 21-Jan-21 11:36 Work Order Comments: C-2237 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 Friday, February 5, 2021 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 20137881, Project Name/Desc: GFL Env - High Point, LLC ENCO Workorder(s): CE00535 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Thursday, January 21, 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 67 PROJECT NARRATIVE Date: February 1, 2021 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point, LLC Lab ID: CE00535 Overview (� �Eo www.encolabs.com This report is an amendment to the original report dated February 1, 2021 for this work order. This report was revised to include previously not reported analytes. 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; however, this analyte was not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1,2-Tetrachloroethane, 1, 1, 1 -Trichloroethane, 1,1-Dichloroethene, 2-Butanone, 2-Hexanone, 4-Methyl-2-pentanone, Acetone, Acrylonitrile, Carbon disulfide, Carbon tetrachloride, cis-1,3-Dichloropropene, Dibromochloromethane, lodomethane, Methylene chloride, Tetra hyd rofu ran, trans- 1,3-Dichloropropene, trans-1,4-Dichloro-2-butene, Trichlorofluoromethane, and Vinyl acetate; however, these analytes were not detected in the associated samples. The spike recoveries for 1, 1, 1,2- Tetrachloroethane, 1, 1 -Dichloroethene, Chlorobenzene, Dibromochloromethane, lodomethane, Methylene chloride, Toluene, and Trichloroethene were outside control limits for the MS and/or MSD samples, the precision between duplicate spikes of 1,2-Dichloroethane exceeded acceptance criteria. The QC batches were approved based on acceptable LCS recovery of these analytes. The spike recovery for 2-Butanone was outside control limits for the MS and/or MSD samples; however, this analyte was not detected in the associated samples. The spike recoveries for Arsenic, Iron, and Manganese were outside control limits for the MS, MSD, and 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 QC batches were approved based on acceptable LCS recovery of these analytes. Quality Control Remarks The precision between duplicate samples for Total Dissolved Solids was outside of acceptance limits. Other Comments The 1,1-Dichloroethane detection in sample 4116-MW-7S and the Benzene, cis- 1,2-Dichloroethene, Toluene, and Vinyl chloride detections in sample 4116-MW-8 were confirmed via reanalysis. The original results are reported and the reanalysis results are available upon request. 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. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 67 (� �Eo www.encolabs.com 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 3 of 67 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MW3 Lab ID: CE00535-01 Sampled: 01/19/21 08:34 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/16/21 01/22/21 12:29 01/22/21 13:40 EPA 310.2 NO PREP 02/02/21 01/27/21 10:21 01/27/21 12:16 EPA 6010D EPA 3005A 07/18/21 01/21/21 13:40 01/26/21 10:14 EPA 6020B EPA 3005A 07/18/21 01/21/21 13:50 01/27/21 15:31 EPA 7470A EPA 7470A 02/16/21 01/25/21 09:39 01/26/21 13:18 EPA 8260D EPA 5030B_MS 02/02/21 01/22/21 14:32 01/22/21 23:59 EPA 8260D EPA 5030B_MIS 02/02/21 01/25/21 16:38 01/25/21 23:50 SM 254OC-2011 NO PREP 01/26/21 01/22/21 15:00 01/22/21 15:00 Client ID: 4116-MW1 Lab ID: CE00535-01RE1 Sampled: 01/19/21 08:34 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/16/21 01/27/21 05:42 01/27/21 15:20 Client ID: 4116-MW2 (MS/MSD) Lab ID: CE00535-02 Sampled: 01/20/21 11:24 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/17/21 01/22/21 12:29 01/22/21 22:12 EPA 310.2 NO PREP 02/03/21 01/27/21 10:21 01/27/21 12:09 EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 09:29 EPA 6020B EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 16:29 EPA 7470A EPA 7470A 02/17/21 01/25/21 09:39 01/26/21 12:08 EPA 8260D EPA 503013_MS 02/03/21 01/22/21 14:32 01/23/21 00:24 EPA 8260D EPA 503013_MS 02/03/21 01/26/21 12:32 01/26/21 16:25 SM 254OC-2011 NO PREP 01/27/21 01/27/21 08:36 01/27/21 08:36 Client ID: 4316-MW2 (MS/MSD) Lab ID: CE00535-02RE1 Sampled: 01/20/21 11:24 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 02/03/21 01/28/21 13:29 01/28/21 16:01 Client ID: 4116-MW3 Lab ID: CE00535-03 Sampled: 01/19/21 10:46 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/16/21 01/22/21 12:29 01/22/21 14:33 EPA 310.2 NO PREP 02/02/21 01/27/21 10:21 01/27/21 12:16 EPA 6010D EPA 3005A 07/18/21 01/21/21 13:40 01/26/21 10:17 EPA 6020E EPA 3005A 07/18/21 01/21/21 13:50 01/27/21 15:48 EPA 7470A EPA 7470A 02/16/21 01/25/21 09:39 01/26/21 13:20 EPA 8260D EPA 5030B_MS 02/02/21 01/22/21 14:32 01/23/21 00:49 EPA 8260D EPA 503013_MS 02/02/21 01/25/21 16:38 01/26/21 00:17 SM 254OC-2011 NO PREP 01/26/21 01/22/21 15:00 01/22/21 15:00 Client ID: 4116-MW4S Lab ID: CE00535-04 Sampled: 01/19/21 12:01 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/16/21 01/22/21 12:29 01/22/21 20:08 EPA 310.2 NO PREP 02/02/21 01/27/21 10:21 01/27/21 12:17 EPA 6010D EPA 3005A 07/18/21 01/21/21 13:40 01/26/21 10:31 EPA 6020E EPA 3005A 07/18/21 01/21/21 13:50 01/27/21 15:53 EPA 7470A EPA 7470A 02/16/21 01/25/21 09:39 01/26/21 13:23 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 11:55 01/22/21 19:08 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 14:32 01/23/21 01:15 SM 2540C-2011 NO PREP 01/26/21 01/22/21 15:00 01/22/21 15:00 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 67 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MWS Lab ID: CE00535-05 Sampled: 01/20/21 09:15 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/17/21 01/22/21 12:29 01/23/21 02:02 EPA 310.2 NO PREP 02/03/21 01/27/21 10:21 01/27/21 12:18 EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 10:33 EPA 6020B EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 15:57 EPA 7470A EPA 7470A 02/17/21 01/25/21 09:39 01/26/21 13:25 EPA 8260D EPA 5030B_MS 02/03/21 01/22/21 14:32 01/23/21 01:40 EPA 8260D EPA 5030B_MIS 02/03/21 01/25/21 16:38 01/26/21 00:45 SM 254OC-2011 NO PREP 01/27/21 01/22/21 15:00 01/22/21 15:00 Client ID: 4116-MW6 Lab ID: CE00535-06 Sampled: 01/19/21 14:55 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/16/21 01/22/21 12:29 01/22/21 20:26 EPA 310.2 NO PREP 02/02/21 01/27/21 10:21 01/27/21 12:18 EPA 6010D EPA 3005A 07/18/21 01/21/21 13:40 01/26/21 10:36 EPA 6010D EPA 3005A 07/18/21 01/22/21 10:40 01/26/21 10:36 EPA 6020E EPA 3005A 07/18/21 01/22/21 10:50 01/27/21 16:01 EPA 7470A EPA 7470A 02/16/21 01/25/21 09:39 01/26/21 13:28 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 11:55 01/22/21 19:36 EPA 8260D EPA 503013_MS 02/02/21 01/25/21 00:00 01/25/21 17:46 SM 2540C-2011 NO PREP 01/26/21 01/22/21 15:00 01/22/21 15:00 Client ID: 4116-MW7S Lab ID: CE00535-07 Sampled: 01/20/21 10:12 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/17/21 01/22/21 12:29 01/22/21 20:44 EPA 310.2 NO PREP 02/03/21 01/27/21 10:21 01/27/21 12:19 EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 10:39 EPA 6020E EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 16:05 EPA 7470A EPA 7470A 02/17/21 01/25/21 09:39 01/26/21 13:30 EPA 8260D EPA 503013_MS 02/03/21 01/22/21 14:32 01/23/21 02:05 EPA 8260D EPA 5030B_MS 02/03/21 01/25/21 16:38 01/26/21 01:12 SM 2540C-2011 NO PREP 01/27/21 01/22/21 15:00 01/22/21 15:00 Client ID: 4116-MWB Lab ID: CE00535-08 Sampled: 01/19/21 09:43 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 02/16/21 01/22/21 12:29 01/22/21 21:01 EPA 310.2 NO PREP 02/02/21 01/27/21 10:21 01/27/21 12:20 EPA 6010D EPA 3005A 07/18/21 01/21/21 13:40 01/26/21 10:56 EPA 6020E EPA 3005A 07/18/21 01/21/21 13:50 01/27/21 16:10 EPA 7470A EPA 7470A 02/16/21 01/25/21 09:39 01/26/21 13:33 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 11:55 01/22/21 20:03 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 14:32 01/23/21 02:31 SM 254OC-2011 NO PREP 01/26/21 01/22/21 15:00 01/22/21 15:00 Client ID: 4116-SW1 Lab ID: CE00535-09 Sampled: 01/20/21 15:45 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 10:58 EPA 6020E EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 16:14 EPA 8260D EPA 5030B_MS 02/03/21 01/25/21 16:38 01/26/21 01:39 Client ID: 4116-SW1 Lab ID: CE00535-09RE1 Sampled: 01/20/21 15:45 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MIS 02/03/21 01/25/21 00:00 01/25/21 11:01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) Of 67 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-SW2 Lab ID: CE00535-10 Sampled: 01/19/21 11:53 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/18/21 01/21/21 13:40 01/26/21 11:01 EPA 6020E EPA 3005A 07/18/21 01/21/21 13:50 01/27/21 16:18 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 11:55 01/22/21 20:31 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 14:32 01/23/21 03:21 Client ID: 4116-SW3 Lab ID: CE00535-11 Sampled: 01/19/21 11:36 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/18/21 01/21/21 13:40 01/26/21 11:03 EPA 6020E EPA 3005A 07/18/21 01/21/21 13:50 01/27/21 16:23 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 11:55 01/22/21 20:58 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 14:32 01/23/21 03:47 Client ID: 4116-SW4 Lab ID: CE00535-12 Sampled: 01/20/21 16:30 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 11:06 EPA 6020B EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 16:43 EPA 8260D EPA 503013_MS 02/03/21 01/22/21 14:32 01/23/21 04:12 EPA 8260D EPA 5030B_MS 02/03/21 01/25/21 16:38 01/26/21 02:07 Client ID: 4116-Field Blank Lab ID: CE00535-13 Sampled: 01/20/21 15:04 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 07/19/21 01/21/21 13:40 01/26/21 11:08 EPA 6020B EPA 3005A 07/19/21 01/21/21 13:50 01/27/21 16:48 EPA 7470A EPA 7470A 02/17/21 01/25/21 09:39 01/26/21 13:36 EPA 8260D EPA 503013_MS 02/03/21 01/22/21 11:55 01/22/21 18:13 EPA 8260D EPA 503013_MS 02/03/21 01/22/21 14:32 01/23/21 04:37 Client ID: 4116-Field Blank Lab ID: CE00535-13RE1 Sampled: 01/20/21 15:04 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 02/03/21 01/25/21 16:38 01/25/21 21:34 Client ID: 4116-Trip Blank Lab ID: CE00535-14 Sampled: 01/19/21 08:34 Received: 01/21/21 10:30 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 02/02/21 01/22/21 11:55 01/22/21 15:55 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 11:55 01/22/21 16:23 EPA 8260D EPA 503013_MS 02/02/21 01/22/21 14:32 01/23/21 05:02 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 67 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW3 Lab ID: CE00535-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 38.3 1.10 10.0 ug/L EPA 6010D Manganese - Total 7.81 J 1.50 10.0 ug/L EPA 6010D Nickel - Total 2.64 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 200000 D 12000 20000 ug/L EPA 300.0 Thallium - Total 0.487 J 0.220 2.00 ug/L EPA 6020E Total Alkalinity as CaCO3 14000 J 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 450000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW3 Lab ID: CE00535-01RE3 Analvte Results Flag MDL PQL Units Method Notes Chloride 16000 2200 5000 ug/L EPA 300.0 Client ID: 4116-MW2 (MS/MSD) Lab ID: CE00535-02 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 50 0.80 2.0 ug/L EPA 8260D Barium - Total 657 1.10 10.0 ug/L EPA 6010D Benzene 1.9 0.15 1.0 ug/L EPA 8260D Chloride 130000 D 4400 10000 ug/L EPA 300.0 Chromium - Total 7.12 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 8.19 J 1.40 10.0 ug/L EPA 6010D Iron - Total 22800 22.0 50.0 ug/L EPA 6010D Manganese - Total 14600 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 22000 D 5800 10000 ug/L EPA 300.0 Thallium - Total 0.259 J 0.220 2.00 ug/L EPA 6020E Total Alkalinity as CaCO3 1000000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 1400000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW2 (MS/MSD) Lab ID: CE00535-02RE1 Analvte Results Flag MDL PQL Units Method Notes Acetone 19 J 10 20 ug/L EPA 8260D Client ID: 4116-MW3 Lab ID: CE00535-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 39.0 1.10 10.0 ug/L EPA 6010D Chloride 12000 2200 5000 ug/L EPA 300.0 Chromium - Total 5.43 1 1.40 10.0 ug/L EPA 6010D Copper - Total 1.68 J 1.60 10.0 ug/L EPA 6010D Iron - Total 291 22.0 50.0 ug/L EPA 6010D Manganese - Total 23.1 1.50 10.0 ug/L EPA 6010D Nickel - Total 3.25 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 13000 2900 5000 ug/L EPA 300.0 Thallium - Total 0.474 J 0.220 2.00 ug/L EPA 6020E Total Alkalinity as CaCO3 39000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 110000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW4S Lab ID: CE00535-04 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 2.2 0.80 2.0 ug/L EPA 8260D Barium - Total 115 1.10 10.0 ug/L EPA 6010D Chloride 14000 2200 5000 ug/L EPA 300.0 Iron - Total 1720 22.0 50.0 ug/L EPA 6010D Manganese - Total 71.3 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 22000 2900 5000 ug/L EPA 300.0 Thallium - Total 0.472 J 0.220 2.00 ug/L EPA 6020E Total Dissolved Solids 110000 50000 50000 ug/L SM 2540C-2011 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 67 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MWS Lab ID: CE00535-05 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 3.0 0.80 2.0 ug/L EPA 8260D Barium - Total 36.4 1.10 10.0 ug/L EPA 6010D Cadmium - Total 0.368 J 0.360 1.00 ug/L EPA 6010D Chloride 3300 J 2200 5000 ug/L EPA 300.0 Cobalt - Total 1.62 J 1.40 10.0 ug/L EPA 6010D Iron - Total 40200 22.0 50.0 ug/L EPA 6010D Manganese - Total 1360 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 10000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 77000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 120000 50000 50000 ug/L SM 2540C-2011 Vanadium - Total 1.48 1 1.40 10.0 ug/L EPA 6010D Client ID: 4116-MW6 Lab ID: CE00535-06 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 200 D 4.0 10 ug/L EPA 8260D Barium - Total 814 1.10 10.0 ug/L EPA 6010D Benzene 5.0 0.15 1.0 ug/L EPA 8260D Chloride 210000 D 8700 20000 ug/L EPA 300.0 Chromium - Total 8.43 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 13.9 1.40 10.0 ug/L EPA 6010D Iron - Total 10100 22.0 50.0 ug/L EPA 6010D Manganese - Total 6730 1.50 10.0 ug/L EPA 6010D Nickel - Total 7.91 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 43000 D 12000 20000 ug/L EPA 300.0 Total Alkalinity as CaCO3 1600000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 2300000 100000 100000 ug/L SM 2540C-2011 Client ID: 4116-MW7S Lab ID: CE00535-07 Analvte Results Flag MDL PQL Units Method Notes 1,1-Dichloroethane 0.54 J 0.13 1.0 ug/L EPA 8260D 1,4-Dioxane 5.8 0.80 2.0 ug/L EPA 8260D Barium - Total 417 1.10 10.0 ug/L EPA 6010D Chloride 24000 2200 5000 ug/L EPA 300.0 Chromium - Total 1.42 J 1.40 10.0 ug/L EPA 6010D Manganese - Total 12.9 1.50 10.0 ug/L EPA 6010D Nickel - Total 6.23 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 43000 2900 5000 ug/L EPA 300.0 Thallium - Total 0.488 J 0.220 2.00 ug/L EPA 6020E Total Alkalinity as CaCO3 310000 D 28000 30000 ug/L EPA 310.2 Total Dissolved Solids 450000 50000 50000 ug/L SM 2540C-2011 Vanadium - Total 7.09 J 1.40 10.0 uq/L EPA 6010D Client ID: 4116-MW8 Lab ID: CE00535-08 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 43 0.80 2.0 ug/L EPA 8260D Barium - Total 174 1.10 10.0 ug/L EPA 6010D Benzene 1.7 0.15 1.0 ug/L EPA 8260D Chloride 160000 D 4400 10000 ug/L EPA 300.0 Chromium - Total 11.7 1.40 10.0 ug/L EPA 6010D cis-1,2-Dichloroethene 1.3 0.15 1.0 ug/L EPA 8260D Cobalt - Total 6.62 J 1.40 10.0 ug/L EPA 6010D Iron - Total 5460 22.0 50.0 ug/L EPA 6010D Manganese - Total 28300 1.50 10.0 ug/L EPA 6010D Nickel - Total 5.78 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 53000 D 5800 10000 ug/L EPA 300.0 Thallium - Total 0.258 J 0.220 2.00 ug/L EPA 6020E Toluene 0.62 J 0.14 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 680000 D 70000 75000 ug/L EPA 310.2 Total Dissolved Solids 1200000 50000 50000 ug/L SM 2540C-2011 Vinyl chloride 0.74 J 0.32 1.0 ug/L EPA 8260D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 67 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-SW3 Lab ID: CE00535-09 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 43.0 1.10 10.0 ug/L EPA 6010D Copper - Total 2.72 J 1.60 10.0 ug/L EPA 6010D Thallium - Total 0.448 J 0.220 2.00 ug/L EPA 6020E Zinc - Total 15.9 4.40 10.0 ug/L EPA 6010D Client ID: 4116-SW3 Lab ID: CE00535-09RE3 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 0.83 J 0.80 2.0 ug/L EPA 8260D Client ID: 4116-SW2 Lab ID: CE00535-10 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 3.0 0.80 2.0 ug/L EPA 8260D Barium - Total 49.1 1.10 10.0 ug/L EPA 6010D Cobalt - Total 1.92 J 1.40 10.0 ug/L EPA 6010D Thallium - Total 0.414 J 0.220 2.00 ug/L EPA 6020E Zinc - Total 6.98 J 4.40 10.0 ug/L EPA 6010D Client ID: 4116-SW3 Lab ID: CE00535-11 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 4.9 0.80 2.0 ug/L EPA 8260D Barium - Total 60.6 1.10 10.0 ug/L EPA 6010D Cobalt - Total 1.68 J 1.40 10.0 ug/L EPA 6010D Thallium - Total 0.438 J 0.220 2.00 ug/L EPA 6020E Zinc - Total 4.52 J 4.40 10.0 ug/L EPA 6010D Client ID: 4116-SW4 Lab ID: CE00535-12 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 4.6 0.80 2.0 ug/L EPA 8260D Barium - Total 51.2 1.10 10.0 ug/L EPA 6010D Thallium - Total 0.369 J 0.220 2.00 ug/L EPA 6020E Client ID: 4116-Field Blank Lab ID: CE00535-13 Analvte Results Flag MDL PQL Units Method Notes Manganese - Total 2.45 J 1.50 10.0 ug/L EPA 6010D Client ID: 4116-Field Blank Lab ID: CE00535-13RE3 Analvte Results Flag MDL PQL Units Method Notes Acetone 25 10 20 ug/L EPA 8260D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 67 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CE00535-01 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/19/2108:34 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [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 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IA25038 EPA 8260D 01/25/21 23:50 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Acetone [67-64-1]A 10 U ug/L 1 10 20 IA25038 EPA 8260D 01/25/21 23:50 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 IA25038 EPA 8260D 01/25/21 23:50 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Iodomethane[74-88-4]^ 1.7 U ug/L 1 1.7 5.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 IA25038 EPA 8260D 01/25/21 23:50 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 IA25038 EPA 8260D 01/25/21 23:50 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 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CE00535-01 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/19/2108:34 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A25038 EPA 8260D 01/25/21 23:50 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 103 % 53-136 IA25038 EPA 6260D 01125121 23:50 RKY Dlbromofluoromethane 51 1 50.0 102 % 67-129 IA25038 EPA 6260D 01125121 23:50 RKY Toluene-& 61 1 50.0 121 % 59-134 IA25038 EPA 6260D 01125121 23:50 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 1A25012 EPA 7470A 01/26/21 13:18 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 15:31 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Barium [7440-39-3]A 38.3 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:14 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:14 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Manganese [7439-96-5]1 7.81 J ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Nickel[7440-02-O]^ 2.64 J ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Thallium [7440-28-0]^ 0.487 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 15:31 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:14 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:14 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]^ 16000 ug/L 1 2200 5000 1A27002 EPA 300.0 01/27/21 15:20 LJI Sulfate as SO4 [14808-79-B]^ 200000 D ug/L 4 12000 20000 1A22014 EPA 300.0 01/22/21 13:40 LJI Total Alkalinity as CaCO3 [471-34-1]^ 14000 J ug/L 1 14000 15000 1A27022 EPA 310.2 01/27/21 12:16 JAH Total Dissolved Solids^ 450000 ug/L 1 50000 50000 1A22012 SM 254OC-2011 01/22/21 15:00 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CE00535-01 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/19/2108:34 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/22/21 23:59 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.4 1 5.00 107 % 75-125 IA22053 EPA 8260D 01122121 23:59 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 67 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CE00535-02 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 11:24 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA26015 EPA 8260D 01/26/21 16:25 RKY QM-07 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY QM-07 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY QM-11 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 IA26015 EPA 8260D 01/26/21 16:25 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA26015 EPA 8260D 01/26/21 16:25 RKY QL-02, QM-07, QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QV-01 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QV-01 Acetone [67-64-1]A 19 1 ug/L 1 10 20 1A28027 EPA 8260D 01/28/21 16:01 RKY Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 1A26015 EPA 8260D 01/26/21 16:25 RKY Benzene [71-43-2]A 1.9 ug/L 1 0.15 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QM-07 Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QM-07 Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QM-07 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QM-07 Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QV-01 Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QM-07 trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY QM-07 Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1A26015 EPA 8260D 01/26/21 16:25 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 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CE00535-02 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 11:24 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A26015 EPA 8260D 01/26/21 16:25 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A26015 EPA 8260D 01/26/21 16:25 RKY Surrogates Results DF Spike LN % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 51 1 50.0 103 % 53-136 IA26015 EPA 8260D 01126121 16:25 RKY 4-Bromofluorobenzene 52 1 50.0 103 % 53-136 IA26027 EPA 8260D 01128121 16:01 RKY Dibromofluoromethane 50 1 50.0 100 % 67-129 IA26015 EPA 6260D 01126121 16:25 RKY Dibromofluoromethane 50 1 50.0 99 % 67-129 IA26027 EPA 6260D 01128121 16:01 RKY Toluene-d8 60 1 50.0 120 % 59-134 IA26015 EPA 6260D 01126121 16:25 RKY Toluene-d8 60 1 50.0 120 % 59-134 IA28027 EPA 6260D 01128121 16:01 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 1A25012 EPA 7470A 01/26/21 12:08 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 16:29 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Barium [7440-39-3]^ 657 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 09:29 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 09:29 JDH Chromium [7440-47-3]^ 7.12 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Cobalt[7440-48-4]^ 8.19 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Iron [7439-89-6]^ 22800 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Manganese [7439-96-5]^ 14600 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Thallium [7440-28-0]^ 0.259 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:29 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 09:29 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CE00535-02 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 11:24 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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]^ 130000 D ug/L 2 4400 10000 1A22015 EPA 300.0 01/22/21 22:12 UI Sulfate as SO4 [14808-79-8]^ 22000 D ug/L 2 5800 10000 1A22015 EPA 300.0 01/22/21 22:12 UI Total Alkalinity as CaCO3 [471-34-1]^ 1000000 D ug/L 10 140000 150000 1A27022 EPA 310.2 01/27/21 12:09 JAH Total Dissolved Solids^ 1400000 ug/L 1 50000 50000 1A27003 SM 254OC-2011 01/27/21 08:36 UI 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]^ s0 ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 00:24 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.5 1 5.00 110 % 75-125 IA22053 EPA 8260D 01123121 00:24 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 67 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CE00535-03 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 10:46 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IA25038 EPA 8260D 01/26/21 00:17 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Acetone [67-64-1]A 10 U ug/L 1 10 20 IA25038 EPA 8260D 01/26/21 00:17 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 IA25038 EPA 8260D 01/26/21 00:17 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Iodomethane[74-88-4]^ 1.7 U ug/L 1 1.7 5.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 IA25038 EPA 8260D 01/26/21 00:17 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 IA25038 EPA 8260D 01/26/21 00:17 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CE00535-03 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 10:46 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A25038 EPA 8260D 01/26/21 00:17 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 105 % 53-136 IA25038 EPA 6260D 01126121 00:17 RKY Dlbromofluoromethane 53 1 50.0 106 % 67-129 IA25038 EPA 6260D 01126121 00:17 RKY Toluene-& 61 1 50.0 122 % 59-134 IA25038 EPA 6260D 01126121 00:17 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 1A25012 EPA 7470A 01/26/21 13:20 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 15:48 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Barium [7440-39-3]^ 39.0 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:17 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:17 JDH Chromium [7440-47-3]^ 5.43 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Copper[7440-50-8]^ 1.68 J ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Iron [7439-89-6]^ 291 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Manganese [7439-96-5]^ 23.1 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Nickel[7440-02-O]^ 3.25 J ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Thallium [7440-28-0]^ 0.474 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 15:48 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:17 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 12000 ug/L 1 2200 5000 1A22014 EPA 300.0 01/22/21 14:33 LJI Sulfate as SO4 [14808-79-B]^ 13000 ug/L 1 2900 5000 1A22014 EPA 300.0 01/22/21 14:33 LJI Total Alkalinity as CaCO3 [471-34-1]^ 39000 ug/L 1 14000 15000 1A27022 EPA 310.2 01/27/21 12:16 JAH Total Dissolved Solids^ 110000 ug/L 1 50000 50000 1A22012 SM 254OC-2011 01/22/21 15:00 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CE00535-03 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 10:46 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 00:49 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.5 1 5.00 111 % 75-125 IA22053 EPA 8260D 01123121 00:49 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 of 67 00� www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CE00535-04 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 12:01 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY QV-01 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 19:08 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 IA22022 EPA 8260D 01/22/21 19:08 RKY QL-02, QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Acetone[67-64-1]A 10 U ug/L 1 10 20 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1A22022 EPA 8260D 01/22/21 19:08 RKY QV-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CE00535-04 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 12:01 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A22022 EPA 8260D 01/22/21 19:08 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A22022 EPA 8260D 01/22/21 19:08 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 103 % 53-136 IA22022 EPA 8260D 01122121 19:08 RKY Dibromofluoromethane 58 1 50.0 116 % 67-129 IA22022 EPA 6260D 01122121 19:08 RKY Toluene-d8 64 1 50.0 129 % 59-134 IA22022 EPA 6260D 01122121 19:08 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 1A25012 EPA 7470A 01/26/21 13:23 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 15:53 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Barium [7440-39-3]^ 115 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:31 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:31 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Iron [7439-89-6]^ 1720 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Manganese [7439-96-5]^ 71.3 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Thallium [7440-28-0]^ 0.472 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 15:53 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:31 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:31 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]^ 14000 ug/L 1 2200 5000 1A22014 EPA 300.0 01/22/21 20:08 LJI Sulfate as SO4 [14808-79-B]^ 22000 ug/L 1 2900 5000 1A22014 EPA 300.0 01/22/21 20:08 LJI Total Alkalinity as CaCO3 [471-34-1]^ 14000 U ug/L 1 14000 15000 1A27022 EPA 310.2 01/27/21 12:17 JAH Total Dissolved Solids^ 110000 ug/L 1 50000 50000 1A22012 SM 254OC-2011 01/22/21 15:00 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 of G% (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CE00535-04 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 12:01 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 2.2 ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 01:15 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.2 1 5.00 105 % 75-125 IA22053 EPA 8260D 01123121 01:15 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 Of 67 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CE00535-05 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/20/2109:15 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [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 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IA25038 EPA 8260D 01/26/21 00:45 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Acetone [67-64-1]A 10 U ug/L 1 10 20 IA25038 EPA 8260D 01/26/21 00:45 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 IA25038 EPA 8260D 01/26/21 00:45 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Iodomethane[74-88-4]^ 1.7 U ug/L 1 1.7 5.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 IA25038 EPA 8260D 01/26/21 00:45 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 IA25038 EPA 8260D 01/26/21 00:45 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CE00535-05 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/20/2109:15 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A25038 EPA 8260D 01/26/21 00:45 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 51 1 50.0 103 % 53-136 IA25038 EPA 6260D 01126121 00:45 RKY Dlbromofluoromethane 51 1 50.0 101 % 67-129 IA25038 EPA 6260D 01126121 00:45 RKY Toluene-& 61 1 50.0 121 % 59-134 IA25038 EPA 6260D 01126121 00:45 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 1A25012 EPA 7470A 01/26/21 13:25 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 15:57 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Barium [7440-39-3]^ 36.4 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:33 JDH Cadmium [7440-43-9]^ 0.368 J ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:33 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Cobalt[7440-48-4]^ 1.62 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Iron [7439-89-6]^ 40200 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Manganese [7439-96-5]1 1360 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 15:57 RLF Vanadium [7440-62-2]^ 1.48 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:33 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:33 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]^ 3300 J ug/L 1 2200 5000 1A22015 EPA 300.0 01/23/21 02:02 LJI Sulfate as SO4 [14808-79-B]^ 10000 ug/L 1 2900 5000 1A22015 EPA 300.0 01/23/21 02:02 LJI Total Alkalinity as CaCO3 [471-34-1]^ 77000 ug/L 1 14000 15000 1A27022 EPA 310.2 01/27/21 12:18 JAH Total Dissolved Solids^ 120000 ug/L 1 50000 50000 1A22012 SM 254OC-2011 01/22/21 15:00 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CE00535-05 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/20/2109:15 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 3.0 ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 01:40 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.0 1 5.00 101 % 75-125 IA22053 EPA 8260D 01123121 01:40 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 Of 67 00� www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CE00535-06 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 14:55 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY QV-01 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 IA22022 EPA 8260D 01/22/21 19:36 RKY QL-02, QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Acetone[67-64-1]A 10 U ug/L 1 10 20 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Benzene [71-43-2]^ 5.0 ug/L 1 0.15 1.0 IA22022 EPA 8260D 01/22/21 19:36 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1A22022 EPA 8260D 01/22/21 19:36 RKY QV-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CE00535-06 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 14:55 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A22022 EPA 8260D 01/22/21 19:36 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A22022 EPA 8260D 01/22/21 19:36 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 53 1 50.0 106 % 53-136 IA22022 EPA 8260D 01122121 19:36 RKY Dibromofluoromethane 56 1 50.0 ill % 67-129 IA22022 EPA 6260D 01122121 19:36 RKY Toluene-d8 64 1 50.0 128 % 59-134 IA22022 EPA 6260D 01122121 19:36 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 1A25012 EPA 7470A 01/26/21 13:28 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 16:01 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Barium [7440-39-3]^ 814 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:36 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:36 JDH Chromium [7440-47-3]^ 8.43 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Cobalt[7440-48-4]^ 13.9 ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Iron [7439-89-6]^ 10100 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Manganese [7439-96-S]^ 6730 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Nickel[7440-02-O]^ 7.91 J ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:01 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:36 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:36 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]^ 210000 D ug/L 4 8700 20000 1A22014 EPA 300.0 01/22/21 20:26 LJI Sulfate as SO4 [14808-79-8]^ 43000 D ug/L 4 12000 20000 1A22014 EPA 300.0 01/22/21 20:26 LJI Total Alkalinity as CaCO3 [471-34-1]^ 1600000 D ug/L 10 140000 150000 1A27022 EPA 310.2 01/27/21 12:18 JAH Total Dissolved Solids^ 2300000 ug/L 2 100000 100000 1A22012 SM 254OC-2011 01/22/21 15:00 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 of G% (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CE00535-06 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/19/21 14:55 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed AX Notes 1,4-Dioxane [123-91-1]^ 200 D ug/L 5 4.0 10 1A25037 EPA 8260D 01/25/21 17:46 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.3 1 5.00 107 % 75-125 IA25037 EPA 8260D 01125121 17:46 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 27 Of 67 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CE00535-07 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 10:12 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 1,1-Dichloroethane [75-34-3]A 0.54 J ug/L 1 0.13 1.0 1A25038 EPA 8260D 01/26/21 01:12 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IA25038 EPA 8260D 01/26/21 01:12 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Acetone [67-64-1]^ 10 U ug/L 1 10 20 IA25038 EPA 8260D 01/26/21 01:12 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 IA25038 EPA 8260D 01/26/21 01:12 RKY Benzene[71-43-2]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Ethylbenzene[100-41-4]^ 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Iodomethane[74-88-4]^ 1.7 U ug/L 1 1.7 5.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Styrene[100-42-5]^ 0.11 U ug/L 1 0.11 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 IA25038 EPA 8260D 01/26/21 01:12 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 IA25038 EPA 8260D 01/26/21 01:12 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 28 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CE00535-07 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 10:12 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A25038 EPA 8260D 01/26/21 01:12 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 50 1 50.0 100 % 53-136 IA25038 EPA 6260D 01126121 01:12 RKY Dlbromofluoromethane 50 1 50.0 101 % 67-129 IA25038 EPA 6260D 01126121 01:12 RKY Toluene-& 61 1 50.0 122 % 59-134 IA25038 EPA 6260D 01126121 01:12 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 1A25012 EPA 7470A 01/26/21 13:30 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 16:05 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Barium [7440-39-3]A 417 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:39 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:39 JDH Chromium [7440-47-3]^ 1.42 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Manganese [7439-96-5]1 12.9 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Nickel[7440-02-O]^ 6.23 J ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Thallium [7440-28-0]^ 0.488 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:05 RLF Vanadium [7440-62-2]^ 7.09 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:39 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:39 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]^ 24000 ug/L 1 2200 5000 1A22014 EPA 300.0 01/22/21 20:44 LJI Sulfate as SO4 [14808-79-B]^ 43000 ug/L 1 2900 5000 1A22014 EPA 300.0 01/22/21 20:44 LJI Total Alkalinity as CaCO3 [471-34-1]^ 310000 D ug/L 2 28000 30000 1A27022 EPA 310.2 01/27/21 12:19 JAH Total Dissolved Solids^ 450000 ug/L 1 50000 50000 1A22012 SM 254OC-2011 01/22/21 15:00 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 29 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CE00535-07 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 10:12 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 5.8 ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 02:05 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.5 1 5.00 109 % 75-125 IA22053 EPA 8260D 01123121 02:05 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 30 Of 67 00� www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE00535-08 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/19/2109:43 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY QV-01 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 IA22022 EPA 8260D 01/22/21 20:03 RKY QL-02, QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Acetone[67-64-1]A 10 U ug/L 1 10 20 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Benzene [71-43-2]^ 1.7 ug/L 1 0.15 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY cis-1,2-Dichloroethene [156-59-2]^ 1.3 ug/L 1 0.15 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Toluene [108-88-3]^ 0.62 J ug/L 1 0.14 1.0 IA22022 EPA 8260D 01/22/21 20:03 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1A22022 EPA 8260D 01/22/21 20:03 RKY QV-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 31 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE00535-08 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/19/2109:43 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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]^ 0.74 J ug/L 1 0.32 1.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A22022 EPA 8260D 01/22/21 20:03 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 103 % 53-136 IA22022 EPA 8260D 01122121 20:03 RKY Dibromofluoromethane 54 1 50.0 109 % 67-129 IA22022 EPA 6260D 01122121 20:03 RKY Toluene-d8 64 1 50.0 128 % 59-134 IA22022 EPA 6260D 01122121 20:03 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 Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 1A25012 EPA 7470A 01/26/21 13:33 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 16:10 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Barium [7440-39-3]^ 174 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:56 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:56 JDH Chromium [7440-47-3]^ 11.7 ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Cobalt[7440-48-4]^ 6.62 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Iron [7439-89-6]^ 5460 ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Manganese [7439-96-5]^ 28300 ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Nickel[7440-02-O]^ 5.78 J ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Thallium [7440-28-0]^ 0.258 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:10 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:56 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 160000 D ug/L 2 4400 10000 1A22014 EPA 300.0 01/22/21 21:01 LJI Sulfate as SO4 [14808-79-8]^ 53000 D ug/L 2 5800 10000 1A22014 EPA 300.0 01/22/21 21:01 LJI Total Alkalinity as CaCO3 [471-34-1]^ 680000 D ug/L 5 70000 75000 1A27022 EPA 310.2 01/27/21 12:20 JAH Total Dissolved Solids^ 1200000 ug/L 1 50000 50000 1A22012 SM 254OC-2011 01/22/21 15:00 LJI FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 32 of G% (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CE00535-08 Received: 01/21/21 10:30 Matrix: Ground Water Sampled: 01/19/2109:43 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes 1,4-Dioxane [123-91-1]^ 43 ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 02:31 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.7 1 5.00 114 % 75-125 IA22053 EPA 8260D 01123121 02:31 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 33 Of 67 00� www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW1 Lab Sample ID:CE00535-09 Received: 01/21/21 10:30 Matrix: Surface Water Sampled:01/20/21 15:45 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IA25038 EPA 8260D 01/26/21 01:39 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Acetone [67-64-1]A 10 U ug/L 1 10 20 IA25038 EPA 8260D 01/26/21 01:39 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 IA25038 EPA 8260D 01/26/21 01:39 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Iodomethane[74-88-4]^ 1.7 U ug/L 1 1.7 5.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 IA25038 EPA 8260D 01/26/21 01:39 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 IA25038 EPA 8260D 01/26/21 01:39 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 34 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW1 Lab Sample ID:CE00535-09 Received: 01/21/21 10:30 Matrix: Surface Water Sampled:01/20/21 15:45 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A25038 EPA 8260D 01/26/21 01:39 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 51 1 50.0 102 % 53-136 IA25038 EPA 6260D 01126121 01:39 RKY Dibromofluoromethane 50 1 50.0 99 % 67-129 IA25038 EPA 6260D 01126121 01:39 RKY Toluene-& 59 1 50.0 119 % 59-134 IA25038 EPA 6260D 01126121 01:39 RKY 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 1A21036 EPA 6020B 01/27/21 16:14 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Barium [7440-39-3]^ 43.0 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 10:58 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 10:58 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Copper[7440-50-8]^ 2.72 J ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Thallium [7440-28-0]^ 0.448 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:14 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 10:58 JDH Zinc[7440-66-6]^ 15.9 ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 10:58 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 0.83 J ug/L 1 0.80 2.0 1A25037 EPA 8260D 01/25/21 11:01 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffy Notes Toluene-d8 5.9 1 5.00 118 % 75-125 1A25037 EPA 8260D 01125121 11:01 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 35 of 67 00� www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW2 Lab Sample ID:CE00535-10 Received: 01/21/21 10:30 Matrix: Surface Water Sampled:01/19/21 11:53 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY QV-01 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 20:31 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 IA22022 EPA 8260D 01/22/21 20:31 RKY QL-02, QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Acetone[67-64-1]A 10 U ug/L 1 10 20 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1A22022 EPA 8260D 01/22/21 20:31 RKY QV-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 36 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW2 Lab Sample ID:CE00535-10 Received: 01/21/21 10:30 Matrix: Surface Water Sampled:01/19/21 11:53 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A22022 EPA 8260D 01/22/21 20:31 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A22022 EPA 8260D 01/22/21 20:31 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 49 1 50.0 98 % 53-136 IA22022 EPA 8260D 01122121 20:31 RKY Dibromofluoromethane 53 1 50.0 106 % 67-129 IA22022 EPA 8260D 01122121 20:31 RKY Toluene-c48 63 1 50.0 127 % 59-134 IA22022 EPA 8260D 01122121 20:31 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 1A21036 EPA 6020B 01/27/21 16:18 RLF Arsenic[7440-38-2]^ 7.60 u ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Barium [7440-39-3]^ 49.1 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Beryllium [7440-41-7]^ 0.160 u ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 11:01 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 11:01 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Cobalt[7440-48-4]^ 1.92 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Copper[7440-50-8]^ 1.60 u ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Nickel[7440-02-0]^ 2.20 u ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Selenium [7782-49-2]^ 6.20 u ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Silver [7440-22-4]^ 1.90 u ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Thallium [7440-28-0]^ 0.414 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:18 RLF Vanadium [7440-62-2]^ 1.40 u ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Zinc[7440-66-6]^ 6.98 J ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 11:01 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 3.0 ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 03:21 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.5 1 5.00 110 % 75-125 1A22053 EPA 8260D 01123121 03:21 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 37 of 67 00� www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW3 Lab Sample ID:CE00535-11 Received: 01/21/21 10:30 Matrix: Surface Water Sampled:01/19/21 11:36 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY QV-01 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 20:58 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 IA22022 EPA 8260D 01/22/21 20:58 RKY QV-01, QL-02 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Acetone[67-64-1]A 10 U ug/L 1 10 20 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1A22022 EPA 8260D 01/22/21 20:58 RKY QV-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 38 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW3 Lab Sample ID:CE00535-11 Received: 01/21/21 10:30 Matrix: Surface Water Sampled:01/19/21 11:36 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A22022 EPA 8260D 01/22/21 20:58 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A22022 EPA 8260D 01/22/21 20:58 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 50 1 50.0 100 % 53-136 IA22022 EPA 8260D 01122121 20:58 RKY Dibromofluoromethane 54 1 50.0 109 % 67-129 IA22022 EPA 6260D 01122121 20:58 RKY Toluene-c48 64 1 50.0 128 % 59-134 IA22022 EPA 6260D 01122121 20:58 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 1A21036 EPA 6020B 01/27/21 16:23 RLF Arsenic[7440-38-2]^ 7.60 u ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Barium [7440-39-3]^ 60.6 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Beryllium [7440-41-7]^ 0.160 u ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 11:03 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 11:03 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Cobalt[7440-48-4]^ 1.68 J ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Copper[7440-50-8]^ 1.60 u ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Nickel[7440-02-0]^ 2.20 u ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Selenium [7782-49-2]^ 6.20 u ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Silver [7440-22-4]^ 1.90 u ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Thallium [7440-28-0]^ 0.438 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:23 RLF Vanadium [7440-62-2]^ 1.40 u ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Zinc[7440-66-6]^ 4.52 J ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 11:03 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 4.9 ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 03:47 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.4 1 5.00 108 % 75-125 1A22053 EPA 8260D 01123121 03:47 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 39 of 67 00� www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW4 Lab Sample ID:CE00535-12 Received: 01/21/21 10:30 Matrix: Surface Water Sampled:01/20/21 16:30 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [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 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IA25038 EPA 8260D 01/26/21 02:07 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Acetone [67-64-1]A 10 U ug/L 1 10 20 IA25038 EPA 8260D 01/26/21 02:07 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 IA25038 EPA 8260D 01/26/21 02:07 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Iodomethane[74-88-4]^ 1.7 U ug/L 1 1.7 5.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 IA25038 EPA 8260D 01/26/21 02:07 RKY QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 IA25038 EPA 8260D 01/26/21 02:07 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 40 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW4 Lab Sample ID:CE00535-12 Received: 01/21/21 10:30 Matrix: Surface Water Sampled:01/20/21 16:30 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A25038 EPA 8260D 01/26/21 02:07 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 50 1 50.0 99 % 53-136 IA25038 EPA 8260D 01126121 02:07 RKY Dibromofluoromethane 53 1 50.0 106 % 67-129 IA25038 EPA 8260D 01126121 02:07 RKY Toluene-& 61 1 50.0 121 % 59-134 IA25038 EPA 6260D 01126121 02:07 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 16:43 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Barium [7440-39-3]^ 51.2 ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 11:06 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 11:06 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Thallium [7440-28-0]^ 0.369 J ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:43 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:06 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 11:06 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 4.6 ug/L 1 0.80 2.0 1A22053 EPA 8260D 01/23/21 04:12 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffy Notes Toluene-d8 5.4 1 5.00 107 % 75-125 1A22053 EPA 8260D 01123121 04:12 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 41 of 67 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-Field Blank Lab Sample ID:CE00535-13 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 15:04 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 IA25038 EPA 8260D 01/25/21 21:34 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Acetone [67-64-1]A 25 ug/L 1 10 20 1A25038 EPA 8260D 01/25/21 21:34 RKY Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 IA25038 EPA 8260D 01/25/21 21:34 RKY Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Iodomethane[74-88-4]A 1.7 U ug/L 1 1.7 5.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 IA22022 EPA 8260D 01/22/21 18:13 RKY QV-01 Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 IA25038 EPA 8260D 01/25/21 21:34 RKY QV-01 Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 IA25038 EPA 8260D 01/25/21 21:34 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 42 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-Field Blank Lab Sample ID:CE00535-13 Received: 01/21/21 10:30 Matrix: Ground Water Sampled:01/20/21 15:04 Work Order: CE00535 Project: GFL Env - High Point, LLC Sampled By: Nicolas Tejada-Torres/Trav 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 1A25038 EPA 8260D 01/25/21 21:34 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 49 1 50.0 99 % 53-136 IA25038 EPA 8260D 01125121 21:34 RKY Dlbromofluoromethane 54 1 50.0 107 % 67-129 IA25038 EPA 8260D 01125121 21:34 RKY Toluene-& 61 1 50.0 122 % 59-134 IA25038 EPA 6260D 01125121 21:34 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 1A25012 EPA 7470A 01/26/21 13:36 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 1A21036 EPA 6020B 01/27/21 16:48 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Barium [7440-39-3]^ 1.10 U ug/L 1 1.10 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 1A21035 EPA 6010D 01/26/21 11:08 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 1A21035 EPA 6010D 01/26/21 11:08 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Manganese [7439-96-5]^ 2.45 J ug/L 1 1.50 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 1A21036 EPA 6020B 01/27/21 16:48 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 1A21035 EPA 6010D 01/26/21 11:08 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 1A21035 EPA 6010D 01/26/21 11:08 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 1A22053 EPA 8260D 01/23/21 04:37 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes 5.5 1 5.00 109 % 75-125 1A22053 EPA 8260D 01123121 0427 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 43 of 67 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-Trip Blank Lab Sample ID:CE00535-14 Received: 01/21/21 10:30 Matrix: Water Sampled: 01/19/2108:34 Work Order: CE00535 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 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY QV-01 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY QV-01 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 IA22022 EPA 8260D 01/22/21 16:23 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 IA22022 EPA 8260D 01/22/21 16:23 RKY QL-02, QV-01 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 Acetone[67-64-1]A 10 U ug/L 1 10 20 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 1A22022 EPA 8260D 01/22/21 15:55 RKY QV-01 Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 1A22022 EPA 8260D 01/22/21 16:23 RKY QV-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 44 of 67 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-Trip Blank Lab Sample ID:CE00535-14 Received: 01/21/21 10:30 Matrix: Water Sampled: 01/19/2108:34 Work Order: CE00535 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 chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 1A22022 EPA 8260D 01/22/21 16:23 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 51 1 50.0 102 % 53-136 IA22022 EPA 8260D 01/22/21 16:23 RKY Dibromofluoromethane 56 1 50.0 112 % 67-129 IA22022 EPA 6260D 01122121 16:23 RKY Toluene-d8 63 1 50.0 126 % 59-134 IA22022 EPA 6260D 01122121 16:23 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 1A22053 EPA 8260D 01/23/21 05:02 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.5 1 5.00 111 % 75-125 1A22053 EPA 8260D 01123121 05:02 KKW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 45 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IA22022 - EPA 5030E MS Blank (1A22022-BLK1) Prepared: 01/22/2021 11:55 Analyzed: 01/22/2021 15:23 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 52 ug/L 50.0 104 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 46 Of 67 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IA22022 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (1A22022-BLK1) Continued Prepared: 01/22/2021 11:55 Analyzed: 01/22/2021 15:23 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 53 u9/L 50.0 107 67-129 Toluene-& 63 u9/L 50.0 126 59-134 LCS (3A22022-BSI) Prepared: 01/22/2021 11:55 Analyzed: 01/22/2021 13:31 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 111 75-133 Benzene 21 1.0 ug/L 20.0 105 80-134 Chlorobenzene 22 1.0 ug/L 20.0 110 80-120 Toluene 22 1.0 ug/L 20.0 108 71-120 Trichloroethene 21 1.0 ug/L 20.0 103 74-120 Matrix Spike (1A22022-MS1) Prepared: 01/22/2021 11:55 Analyzed: 01/22/2021 13:59 Source: CE01004-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 113 75-133 Benzene 22 1.0 ug/L 20.0 0.15 U 110 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 106 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 107 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 106 74-120 Matrix Spike Dup (1A22022-MSDI) Prepared: 01/22/2021 11:55 Analyzed: 01/22/2021 14:27 Source: CE01004-06 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch IA2503B - EPA 5030B MS Result 21 20 20 20 19 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 107 102 100 100 96 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 6 7 6 7 10 RPD Limit Notes 20 17 16 17 22 Blank (3A25038-BLK3) Prepared: 01/25/2021 16:38 Analyzed: 01/25/2021 18:50 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 47 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IA2503B - EPA 5030E MS - Continued Blank (1A25038-BLK1) Continued Prepared: 01/25/2021 16:38 Analyzed: 01/25/2021 18:50 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 51 u91L 50.0 102 53-136 Dibromofluoromethane 52 u91L 50.0 104 67-129 Toluene-d8 61 u91L 50.0 123 59-134 LCS (1A25038-BSI) Prepared: 01/25/2021 16:38 Analyzed: 01/25/2021 17:00 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 108 75-133 Benzene 20 1.0 ug/L 20.0 101 80-134 Chlorobenzene 22 1.0 ug/L 20.0 109 80-120 Toluene 21 1.0 ug/L 20.0 104 71-120 Trichloroethene 22 1.0 ug/L 20.0 110 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 48 of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A2503B - EPA 5030E MS - Continued Matrix Spike (1A25038-MS1) Prepared: 01/25/2021 16:38 Analyzed: 01/25/2021 17:27 Source: CE01183-03 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 21 1.0 ug/L 20.0 0.15 U 103 80-134 Chlorobenzene 23 1.0 ug/L 20.0 0.17 U 115 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 23 1.0 ug/L 20.0 0.15 U 114 74-120 Matrix Spike Dup (3A25038-MSD1) Prepared: 01/25/2021 16:38 Analyzed: 01/25/2021 17:55 Source: CE01183-03 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 118 75-133 4 20 Benzene 21 1.0 ug/L 20.0 0.15 U 107 80-134 4 17 Chlorobenzene 23 1.0 ug/L 20.0 0.17 U 113 80-120 2 16 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 0.4 17 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 112 74-120 2 22 Batch IA26015 - EPA 5030B MS Blank (1A26015-BLK3) Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 15:57 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 16 3 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 49 Of 67 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A26015 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (1A26015-BLK1) Continued Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 15:57 Analvte Result Flaq POL Units cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.41 3 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 53 U91L 50.0 105 53-136 D1br0m0flu0r0met17ane 49 u91L 50.0 97 67-129 Toluene-d8 59 u91L 50.0 118 59-134 LCS (1A26015-BSI) Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 14:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 112 75-133 Benzene 20 1.0 ug/L 20.0 98 80-134 Chlorobenzene 20 1.0 ug/L 20.0 102 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 21 1.0 ug/L 20.0 105 74-120 Matrix Spike (1A26015-MS1) Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 14:34 Source: CE00535-02 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 124 75-133 Benzene 22 1.0 ug/L 20.0 1.9 100 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 111 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 108 74-120 Matrix Spike Dup (1A26015-MSD1) Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 15:01 Source: CE00535-02 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 137 75-133 10 20 QM-07 Benzene 25 1.0 ug/L 20.0 1.9 116 80-134 13 17 Chlorobenzene 24 1.0 ug/L 20.0 0.17 U 122 80-120 9 16 QM-07 Toluene 24 1.0 ug/L 20.0 0.14 U 121 71-120 13 17 QM-07 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 50 of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A26015 - EPA 5030E MS - Continued Matrix Spike Dup (1A26015-MSDS) Continued Prepared: 01/26/2021 12:32 Analyzed: 01/26/2021 15:01 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Trichloroethene 25 1.0 ug/L 20.0 0.15 U 125 74-120 15 22 QM-07 Batch IA27033 - EPA 5030B MS Blank (1A27033-BLK3) Prepared: 01/27/2021 12:42 Analyzed: 01/27/2021 14:48 Analvte Result Flaa POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L 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 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 Pager) 1 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch IA27033 - EPA 5030E MS - Continued Blank (1A27033-BLK1) Continued Prepared: 01/27/2021 12:42 Analyzed: 01/27/2021 14:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoronnethane 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 48 u91L 50.0 96 53-136 D/bromofluoromethane 49 u91L 50.0 97 67-129 Toluene-d8 59 u9/L 50.0 117 59-134 LCS (1A27033-BSI) Prepared: 01/27/2021 12:42 Analyzed: 01/27/2021 12:57 Spike Source O/oREC RPD Analvte Result Flaq Q Units Level Result O/oREC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 108 75-133 Benzene 19 1.0 ug/L 20.0 97 80-134 Chlorobenzene 21 1.0 ug/L 20.0 105 80-120 Toluene 20 1.0 ug/L 20.0 99 71-120 Trichloroethene 23 1.0 ug/L 20.0 113 74-120 Matrix Spike (1A27033-MS1) Prepared: 01/27/2021 12:42 Analyzed: 01/27/2021 13:25 Source: CE01249-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 0.21 U 108 75-133 Benzene 20 1.0 ug/L 20.0 0.15 U 102 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 110 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 103 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 108 74-120 Matrix Spike Dup (3A27033-MSD1) Prepared: 01/27/2021 12:42 Analyzed: 01/27/2021 13:52 Source: CE01249-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 1,1-Dichloroethene 22 1.0 ug/L 20.0 0.21 U 108 75-133 0.2 20 Benzene 19 1.0 ug/L 20.0 0.15 U 96 80-134 5 17 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 108 80-120 1 16 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 1 17 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 105 74-120 3 22 Batch 1A28027 - EPA 5030B MS Blank (1A28027-BLK3) Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 15:06 Analvte Result Flaci 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 Spike Source O/oREC RPD Level Result O/oREC 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 52 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A28027 - EPA 5030E MS - Continued Blank (1A28027-BLK1) Continued Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 15:06 Analvte Result Flaq POL Units 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 RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 49 u91L 50.0 97 53-136 Dibromofluoromethane 49 u91L 50.0 98 67-129 Toluene-d8 61 u91L 50.0 123 59-134 LCS (1A28027-BSI) Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 13:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 103 75-133 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 53 Of 67 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1A28027 - EPA 5030E MS - Continued (� �Eo www.encolabs.com LCS (1A28027-BSI) Continued Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 13:15 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Benzene 19 1.0 ug/L 20.0 94 80-134 Chlorobenzene 21 1.0 ug/L 20.0 104 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 20 1.0 ug/L 20.0 101 74-120 Matrix Spike (1A28027-MS1) Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 13:43 Source: CE01183-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 105 75-133 Benzene 20 1.0 ug/L 20.0 0.15 U 99 80-134 Chlorobenzene 22 1.0 ug/L 20.0 0.17 U 108 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 102 71-120 Trichloroethene 22 1.0 ug/L 20.0 0.15 U 108 74-120 Matrix Spike Dup (1A28027-MSD1) Prepared: 01/28/2021 12:34 Analyzed: 01/28/2021 14:10 Source: CE01183-06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 99 75-133 7 20 Benzene 19 1.0 ug/L 20.0 0.15 U 96 80-134 3 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 102 80-120 5 16 Toluene 19 1.0 ug/L 20.0 0.14 U 97 71-120 5 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 99 74-120 8 22 Metals by EPA 6000/7000 Series Methods - Quality Control Batch IA25012 - EPA 7470A Blank (1A25012-BLK3) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:04 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 (3A25012-BSI) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:06 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.92 0.200 ug/L 5.00 98 80-120 Matrix Spike (1A25012-MS1) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:11 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.17 0.200 ug/L 5.00 0.150 U 83 75-125 Matrix Spike Dup (1A25012-MSD1) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:13 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.07 0.200 ug/L 5.00 0.150 U 81 75-125 2 25 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 54 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 1A25012 - EPA 7470A - Continued Post Spike (SA25012-PS3) Prepared: 01/25/2021 09:39 Analyzed: 01/26/2021 12:56 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.62 0.200 ug/L 5.00 0.0440 92 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1A21035 - EPA 3005A Blank (1A21035-BLK1) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:19 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 (1A21035-BSI) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 207 10.0 ug/L 200 103 80-120 Barium 212 10.0 ug/L 200 106 80-120 Beryllium 20.5 1.00 ug/L 20.0 102 80-120 Cadmium 20.4 1.00 ug/L 20.0 102 80-120 Chromium 210 10.0 ug/L 200 105 80-120 Cobalt 213 10.0 ug/L 200 107 80-120 Copper 209 10.0 ug/L 200 105 80-120 Iron 1040 50.0 ug/L 1000 104 80-120 Lead 216 10.0 ug/L 200 108 80-120 Manganese 209 10.0 ug/L 200 105 80-120 Nickel 213 10.0 ug/L 200 106 80-120 Selenium 213 10.0 ug/L 200 107 80-120 Silver 214 10.0 ug/L 200 107 80-120 Vanadium 209 10.0 ug/L 200 104 80-120 Zinc 214 10.0 ug/L 200 107 80-120 Matrix Spike (1A23035-MS1) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:39 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 26.5 10.0 ug/L 200 7.60 U 13 75-125 QM-07 Barium 835 10.0 ug/L 200 657 89 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 55 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1A21035 - EPA 3005A - Continued Matrix Spike (1A23035-MS3) Continued Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:39 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Beryllium 18.3 1.00 ug/L 20.0 0.160 U 91 75-125 Cadmium 16.0 1.00 ug/L 20.0 0.360 U 80 75-125 Chromium 189 10.0 ug/L 200 7.12 91 75-125 Cobalt 175 10.0 ug/L 200 8.19 84 75-125 Copper 180 10.0 ug/L 200 1.60 U 90 75-125 Iron 23400 50.0 ug/L 1000 22800 57 75-125 QM-07 Lead 173 10.0 ug/L 200 3.10 U 86 75-125 Manganese 14700 10.0 ug/L 200 14600 44 75-125 QM-07 Nickel 177 10.0 ug/L 200 2.20 U 88 75-125 Selenium 161 10.0 ug/L 200 6.20 U 80 75-125 Silver 193 10.0 ug/L 200 1.90 U 96 75-125 Vanadium 187 10.0 ug/L 200 1.40 U 94 75-125 Zinc 177 10.0 ug/L 200 4.40 U 89 75-125 Matrix Spike Dup (1A21035-MSD1) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:42 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 24.5 10.0 ug/L 200 7.60 U 12 75-125 7 20 QM-07 Barium 863 10.0 ug/L 200 657 103 75-125 3 20 Beryllium 18.6 1.00 ug/L 20.0 0.160 U 93 75-125 2 20 Cadmium 16.2 1.00 ug/L 20.0 0.360 U 81 75-125 1 20 Chromium 194 10.0 ug/L 200 7.12 93 75-125 2 20 Cobalt 180 10.0 ug/L 200 8.19 86 75-125 2 20 Copper 184 10.0 ug/L 200 1.60 U 92 75-125 2 20 Iron 24600 50.0 ug/L 1000 22800 176 75-125 5 20 QM-07 Lead 178 10.0 ug/L 200 3.10 U 89 75-125 3 20 Manganese 15200 10.0 ug/L 200 14600 316 75-125 4 20 QM-07 Nickel 181 10.0 ug/L 200 2.20 U 90 75-125 2 20 Selenium 176 10.0 ug/L 200 6.20 U 88 75-125 9 20 Silver 197 10.0 ug/L 200 1.90 U 98 75-125 2 20 Vanadium 192 10.0 ug/L 200 1.40 U 96 75-125 2 20 Zinc 183 10.0 ug/L 200 4.40 U 92 75-125 3 20 Post Spike (1A21035-PS1) Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:45 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.0330 0.0100 mg/L 0.200 -0.147 17 80-120 QM-08 Barium 0.833 0.0100 mg/L 0.200 0.657 88 80-120 Beryllium 0.0188 0.00100 mg/L 0.0200 -0.000210 94 80-120 Cadmium 0.0165 0.00100 mg/L 0.0200 -0.00109 82 80-120 Chromium 0.193 0.0100 mg/L 0.200 0.00712 93 80-120 Cobalt 0.178 0.0100 mg/L 0.200 0.00819 85 80-120 Copper 0.181 0.0100 mg/L 0.200 -0.00898 91 80-120 Iron 23.5 0.0500 mg/L 1.00 22.8 62 80-120 QM-08 Lead 0.175 0.0100 mg/L 0.200 0.00174 87 80-120 Manganese 14.5 0.0100 mg/L 0.200 14.6 NR 80-120 QM-08 Nickel 0.181 0.0100 mg/L 0.200 0.00215 89 80-120 Selenium 0.169 0.0100 mg/L 0.200 -0.0190 85 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 56 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 1A21035 - EPA 3005A - Continued Post Spike (SA21035-PS3) Continued Prepared: 01/21/2021 13:40 Analyzed: 01/26/2021 09:45 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Silver 0.197 0.0100 mg/L 0.200 -0.00163 99 80-120 Vanadium 0.190 0.0100 mg/L 0.200 -0.00316 95 80-120 Zinc 0.182 0.0100 mg/L 0.200 0.00191 90 80-120 Batch IA21036 - EPA 3005A Blank (1A21036-BLK1) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 14:44 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 (1A21036-BSI) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 14:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.9 1.00 ug/L 20.0 105 80-120 Selenium 20.4 1.00 ug/L 20.0 102 80-120 Thallium 20.8 1.00 ug/L 20.0 104 80-120 Matrix Spike (1A23036-MS1) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 15:01 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 42.5 2.00 ug/L 40.0 0.740 U 106 75-125 Selenium 40.7 2.00 ug/L 40.0 1.82 U 102 75-125 Thallium 38.5 2.00 ug/L 40.0 0.259 96 75-125 Matrix Spike Dup (1A21036-MSD1) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 15:05 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 41.7 2.00 ug/L 40.0 0.740 U 104 75-125 2 20 Selenium 42.4 2.00 ug/L 40.0 1.82 U 106 75-125 4 20 Thallium 38.7 2.00 ug/L 40.0 0.259 96 75-125 0.5 20 Post Spike (SA21036-PS1) Prepared: 01/21/2021 13:50 Analyzed: 01/27/2021 15:10 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.4 1.00 ug/L 20.0 0.0688 107 75-125 Selenium 22.1 1.00 ug/L 20.0 0.515 108 75-125 Thallium 19.6 1.00 ug/L 20.0 0.130 97 75-125 Classical Chemistry Parameters - Quality Control Batch IA22012 - NO PREP Blank (1A22012-BLK3) Prepared & Analyzed: 01/22/2021 15:00 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 57 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch IA22012 - NO PREP - Continued Blank (3A22012-BLK1) Continued Prepared & Analyzed: 01/22/2021 15:00 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 (1A22012-BS1) Prepared & Analyzed: 01/22/2021 15:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 980 50 mg/L 1000 98 80-120 Duplicate (3A22012-DUP3) Prepared & Analyzed: 01/22/2021 15:00 Source: CD20536-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 2100000 50000 ug/L 2100000 0.7 20 Duplicate (1A22012-DUP2) Prepared & Analyzed: 01/22/2021 15:00 Source: CD20536-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 120000 50000 ug/L 90000 30 20 QM-12 Batch IA22014 - NO PREP Blank (1A22014-BLK3) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 13:04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (1A22014-BSI) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 13:22 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 48000 5000 ug/L 50000 96 90-110 Sulfate as SO4 48000 5000 ug/L 50000 95 90-110 Matrix Spike (3A22014-MS1) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 13:57 Source: CE00535-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 98000 20000 ug/L 80000 18000 101 90-110 Sulfate as SO4 280000 20000 ug/L 80000 200000 102 90-110 Matrix Spike (1A22014-MS2) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 14:50 Source: CE00535-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 32000 5000 ug/L 20000 12000 102 90-110 Sulfate as SO4 30000 5000 ug/L 20000 13000 82 90-110 QM-07 Matrix Spike Dup (1A22014-MSDS) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 14:15 Source: CE00535-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 98000 20000 ug/L 80000 18000 101 90-110 0.02 10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 58 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch IA22014 - NO PREP - Continued Matrix Spike Dup (1A22014-MSDS) Continued Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 14:15 Source: CE00535-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 280000 20000 ug/L 80000 200000 103 90-110 0.07 10 Batch IA22015 - NO PREP Blank (1A22015-BLK3) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 21:37 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L Sulfate as SO4 2900 U 5000 ug/L LCS (1A22015-BSI) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 21:54 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 48000 5000 ug/L 50000 97 90-110 Sulfate as SO4 48000 5000 ug/L 50000 96 90-110 Matrix Spike (3A22015-MS1) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 22:30 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 180000 10000 ug/L 40000 130000 115 90-110 QM-07 Sulfate as SO4 56000 10000 ug/L 40000 22000 86 90-110 QM-07 Matrix Spike (1A22015-MS2) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 23:58 Source: CE00209-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 36000 5000 ug/L 20000 14000 108 90-110 Sulfate as SO4 18000 5000 ug/L 20000 3100 76 90-110 QM-07 Matrix Spike Dup (1A22015-MSDS) Prepared: 01/22/2021 12:29 Analyzed: 01/22/2021 22:47 Ill Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 180000 10000 ug/L 40000 130000 116 90-110 0.2 10 QM-07 Sulfate as SO4 56000 10000 ug/L 40000 22000 85 90-110 0.7 10 QM-07 Batch IA27002 - NO PREP Blank (3A27002-BLK3) Prepared: 01/27/2021 05:42 Analyzed: 01/27/2021 09:44 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L LCS (1A27002-BSI) Prepared: 01/27/2021 05:42 Analyzed: 01/27/2021 10:37 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 48000 5000 ug/L 50000 96 90-110 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 59 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch IA27002 - NO PREP - Continued Matrix Spike (1A27002-MS1) Prepared: 01/27/2021 05:42 Analyzed: 01/27/2021 11:12 Source: CE00745-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 100000 E 5000 ug/L 20000 79000 111 90-110 QM-07 Matrix Spike (1A27002-MS2) Prepared: 01/27/2021 05:42 Analyzed: 01/27/2021 12:05 Source: CD17720-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 9300 5000 ug/L 20000 9300 0.2 90-110 QM-07 Matrix Spike Dup (3A27002-MSD1) Prepared: 01/27/2021 05:42 Analyzed: 01/27/2021 11:30 Source: CE00745-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 100000 E 5000 ug/L 20000 79000 116 90-110 1 10 QM-07 Batch IA27003 - NO PREP Blank (1A27003-BLK1) Prepared & Analyzed: 01/27/2021 08:36 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 (1A27003-BS1) Prepared & Analyzed: 01/27/2021 08:36 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 980 50 mg/L 1000 98 80-120 Duplicate (3A27003-DUP3) Prepared & Analyzed: 01/27/2021 08:36 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 1400000 50000 ug/L 1400000 0.3 20 Batch IA27022 - NO PREP Blank (1A27022-BLK1) Prepared: 01/27/2021 10:21 Analyzed: 01/27/2021 12:08 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 (1A27022-BS1) Prepared: 01/27/2021 10:21 Analyzed: 01/27/2021 12:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 97 15 mg/L 100 97 80-120 Matrix Spike (3A27022-MS3) Prepared: 01/27/2021 10:21 Analyzed: 01/27/2021 12:10 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1400000 150000 ug/L 400000 1000000 78 80-120 QM-07 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 60 of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch IA27022 - NO PREP - Continued Matrix Spike Dup (1A27022-MSDS) Prepared: 01/27/2021 10:21 Analyzed: 01/27/2021 12:10 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1400000 150000 ug/L 400000 1000000 84 80-120 2 25 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IA22053 - EPA 5030E MS Blank (1A22053-BLK1) Prepared: 01/22/2021 14:32 Analyzed: 01/22/2021 23:08 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 5.3 ug/L 5.00 107 75-125 LCS (1A22053-BSI) Prepared: 01/22/2021 14:32 Analyzed: 01/22/2021 21:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 25.0 94 80-133 Toluene-d8 5.3 ug/L 5.00 107 75-125 Matrix Spike (IA22053-MS1) Prepared: 01/22/2021 14:32 Analyzed: 01/22/2021 21:53 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 74 2.0 ug/L 25.0 50 97 80-133 Toluene-d8 5.6 ug/L 5.00 111 75-125 Matrix Spike Dup (1A22053-MSD1) Prepared: 01/22/2021 14:32 Analyzed: 01/22/2021 22:18 Source: CE00535-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 74 2.0 ug/L 25.0 50 96 80-133 0.2 19 Toluene-d8 5.6 ug/L 5.00 111 75-125 Batch IA25037 - EPA 5030E MS Blank (3A25037-BLKI) Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 10:32 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 5.3 ug/L 5.00 107 75-125 LCS (1A25037-BS1) Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 10:07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 20.0 125 80-133 Toluene-d8 6.0 ug/L 5.00 120 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 61 Of 67 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch IA25037 - EPA 5030E MS - Continued Matrix Spike (1A25037-MS1) Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 18:11 Source: AD08269-39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 20.0 0.80 U 122 80-133 Toluene-d8 5.3 ug/L 5.00 106 75-125 Matrix Spike Dup (1A25037-MSD1) Prepared: 01/25/2021 00:00 Analyzed: 01/25/2021 18:36 Source: AD08269-39 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 20.0 0.80 U 120 80-133 1 19 Toluene-d8 5.2 ug/L 5.00 104 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 62 Of 67 (� �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. 1-02 Result may be biased high. Associated laboratory control sample (LCS) exceeded the upper control limit. 1-04 Result may be biased high. Associated calibration verification standard exceeded the upper 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. QM-12 Precision between duplicate samples 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 63 of 67 o3i p. 2 w m o m w A A A A ,► A Ob A 4�- ## JA A m CDg m yy�� 5 ❑ S NXN f7 bl co C) n? N N N N N 1 tj O � �/ V - V v S. . /{ m 4 S 8 f� m C) Z Z } Z 3 P) co co C's 1 v c V , �f A a Z = N :r �m ry i1 x N A F m � 3 —i �d y y m 0 0 ca OD 0 2 rn c N o 070 0 82WOApAppg nft 1,826M N 0 ❑ C d C A� 3k a a AO As,Ba,BB.Cd.C4.G7.CUF01dR.N�,Pb. () m» m m m C) X X x x x x x o � 4u,Z a X x X x N A9 4: Bei.BO,CC,C+0.Cr,Cu.Nt.Pb.Sb.9e, Z m ° O s ^ y m N 11 s `-' X 7C X iC X X X AkaRnity810.2ChWkftaW.TDS A n n z n m o °' T.x x x X X X X paHg O �p Ip T w { x x x x x x x Sulfate 300 d 70 g m a wn m4 N O J m °_ (73 ? 0 P � m o — y' 6 Q � N 5 d ry 3 c C v cr 1p C o ❑ ❑ ❑ ply � o ro � cp m 7p tP 3 3 a ( Qm cn ; O m m m n (o X v e% ti m Q N o O y � Oi m Q �� N Page 64 of 67 � 3 m a = � � � x ro m a ro a � � N m m 1Y v Di 3 g m m � m a m a 2O 3 y n m m 5 b a � a m a m m m m a � i ago -__cc m ° �$ M U n m ID.6 a CD 4 O m m S C (D 1 v Q' I CD m m c ¢ m 3 3 CY) �r i i 3 c k1 PC xr �t a V _ ' i o w � '#? �C nC W O _ m m Zy pm Z r o z a DTI 0 F G O O rt 0 &MG Appendtr +,e2SW Fri N AQ,As,�.Be,Gd.Co,Gr,Cu1Fi.Mn,H1,Pb, (i -� F V = v Ay Asi3*Ae,Cd,Co,G.Cu,NI,Pb,$b,9e, Z n q iiV n O Ak*Unity 310.2,ChWft 3W,TDS a h, $M2NW a 7, � o C 0 n a ❑ n a SWFate 300 y m y P n O y v U 0 � ID Mo to (D m Q a rn co a m o m X " cz m O_ CD CD — m °' a = a o i3 in L%2 " n C �v H Page 65 of 67 Sample Preservation Verification ENCO Cary Work Order: CE00 35 Project: GFL Env - High Point, LLC Client: Golder Associates, Inc. (GO007) Project#: 20137881 Logged In: 21-Ja -21 11:20 ' c- 1 Logged By: John C King Preservation Check erformed By: 1 Date/Time: { - zt Z ( CE00535-01 Cant Type Pres (pH) Requirement pH Checked 1 In Control PH Adjusted Date[Time Adjusted Reagent Used/Comments B 250mLP- HNO3 <2 I N I NA Y l q l NA CE00535-02 Cont Type Pres (PH) Requirement PH Checked / In Control PH Adjusted DateiTime Adjusted Reagent Used/Comments B 250mLP+HNO3 <2 Y / N / NA Y 1' 1 NA i C 250mLP+HNO3 <2 Y/ N I NA Y /(� 1 NA C E00535-03 Cont Type Pres (pH) Requirement pH Checked / In Control PH Adjusted DateMme Adjusted Reagent Used/Comments B 25OmLP+HNO3 1 <2 '"Y) / N / NA I YIN ,H NA C E00535-04 Cani Type Pres (PH) pH Checked / Requirement In Control DatelTime pH Adjusted Adjusted Reagent Used/Comments B 250mLP-*HNO3 <2 I N I NA Y 1 6 1 NA CE00535-05 Cont Type Pres (pH) Requirement PH Checked I In Control PH Adjusted Date/Time Adjusted Reagent Used/Comments B 250mLP+HNO3 <2 Y, I N / NA Y I & NA Cant Type Pres (PH) pH Checked / I pH Adjusted Date/Time Reagent Used/Comments Requirement , In Control Adjusted B 250mLP+HNO3 1 <2 Y. 1 N / NA Y NA i CE00535-07 Cont Type Pres (pH) Requirement IpH Checked / In Control PH Adjusted Date/Time Adjusted Reagent Used/Comments B 250mLP+HNO3 <2 Y/ N 1 NA In NA CE00535-08 Cont Type Pres (pH) Requirement pH Checked I In Control pH Adjusted Date/Time Adjusted Reagent UsedlComments B 250mLP+HNO3 <2 j4 I N I NA Y id 1 NA C:\ELMNT\Print\wko—F reservation Check. rpt Page 66 of 67 Sample Preservation Verification ENCO Cary Work Order: CE00 35 Project: GFL Env - High Point, LLC Client: Golder Associates, Inc. (GO007) Project #: 20137881 Lagged In: 21-Ja -21 11:20 Logged By: John C King i `/ z t� ' Z � � JD Preservation Check Performed By: Date/Time: C E00535-09 Cont Type Pres (pH) pH Checked / pH Adjusted DatelTime. Reagent Used/Comments Requirement In, Control Adjusted A 250mLP+HNO3 <2 ! N / NA Y / Ig I NA CE00535-10 Cant Type Pres (pH) pH Checked 1 pl-i Adjusted Date/Time Reagent Used/Cornrnents Requirement In Control Adjusted A 50mLP+HNO3 <2 91 N I NA Y/ N f NA C E00535-11 Cont Type Pres (pH) pH Checked/ pH Adjusted DatelTime Reagent Used/Comments Requirement In Control Adjusted I A 250mLP+HNO3 <2 Y I N 1 NA Y It N) I NA CE00535-12 Cont Pres (pH) Requirement pH Checked 1 in Control pH Adjusted Date/Time Adjusted Reagent Used/Carzzments A 256lnLP� HNO3 <2 Y / N / NA Y ! '%I / NA CE00535-13 Cont Type Pres (pH) pH Checked ! pH Adjusted DateMime Reagent Used/Comments Requirement In Control Adjusted A 25flmLP+HNO3 <2 �/ N / NA Y / N / NA Rea ent Name ID Flea ent Name ID Rea ent Name ID 1 31 5 2 4 6 jJ pH Strip I D: C:IELMNT1Printlwko_ reservationCheck.rpt Page 67 of 67 WORK ORDER Printed: 1/25/2021 8:54:01AM CE00535 ENCO Cary Sample Receipt Conditions Client: Golder Associates, Inc. (G0007) Lab Project Mgr: Amanda L. Gaines Project: GFL Env - High Point, LLC Project Number: 20137881 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: John C King Date Received: 21-Jan-21 10:30 Logged In By: John C King Date Logged In: 21-Jan-21 11:20 Work Order Comments: C-1897 received at 2.0°C Containers Intact Y Custody Seals Intact Y Temperature Corrected Y Containers Properly Preserved Y Proper Containers Received Y All Samples in PreLog Received Y COC/Labels Agree Y Volatile Containers Preserved Y Volatile Containers Headspace Free Y Aqueous Samples Checked for Residual Cl N Received On Ice 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 Friday, March 5, 2021 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 2013788121-101, Project Name/Desc: GFL Env - High Point LF, LLC Resample ENCO Workorder(s): CE02123 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, February 26, 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 PROJECT NARRATIVE Date: March 5, 2021 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Resample Lab ID: CE02123 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 No Comments 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 8 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MW-8 Lab ID: CE02123-01 Sampled: 02/24/21 10:25 Received: 02/26/21 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 03/10/21 03/02/21 15:47 03/03/21 11:06 Client ID: 4116-AMW-1 Lab ID: CE02123-02 Sampled: 02/24/21 11:18 Received: 02/26/21 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 03/10/21 03/02/21 15:47 03/03/21 11:34 Client ID: Trip Blank Lab ID: CE02123-03 Sampled: 02/24/21 10:25 Received: 02/26/21 13:45 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 03/10/21 03/02/21 15:47 03/03/21 09:17 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 8 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW-8 Lab ID: CE02123-01 Analvte Results Flag MDL PQL Units Method Notes Benzene 1.5 0.57 1.0 uq/L EPA 8260D Client ID: 4116-AMW-1 Lab ID: CE02123-02 Analvte Results Flag MDL PQL Units Method Notes Benzene 1.6 0.57 1.0 ug/L EPA 8260D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW-8 Lab Sample ID:CE02123-01 Received: 02/26/21 13:45 Matrix: Ground Water Sampled:02/24/21 10:25 Work Order: CE02123 Project: GFL Env - High Point LF, LLC Resample Sampled By: Darren Cox 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 Benzene [71-43-2]^ 1.5 ug/L 1 0.57 1.0 1CO2031 EPA 8260D 03/03/21 11:06 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 91 % 53-136 ICO2031 EPA 8260D 03103121 11:06 RKY Dibromofluoromethane 49 1 50.0 99 % 67-129 ICO2031 EPA 8260D 03103121 11:06 RKY Toluene-d8 63 1 50.0 126 % 59-134 ICO2031 EPA 8260D 03103121 11:06 RKY Description: 4116-AMW-1 Lab Sample ID:CE02123-02 Received: 02/26/21 13:45 Matrix: Ground Water Sampled:02/24/21 11:18 Work Order: CE02123 Project: GFL Env - High Point LF, LLC Resample Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Benzene [71-43-2]^ 1.6 ug/L 1 0.57 1.0 1CO2031 EPA 8260D 03/03/21 11:34 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 92 % 53-136 1CO2031 EPA 8260D 03103121 11:34 RKY Dibromofluoromethane 48 1 50.0 97 % 67-129 1CO2031 EPA 8260D 03103121 11:34 RKY Toluene-d8 62 1 50.0 124 % 59-134 1CO2031 EPA 8260D 03103121 11:34 RKY Description: Trip Blank Lab Sample ID:CE02123-03 Received: 02/26/21 13:45 Matrix: Water Sampled:02/24/21 10:25 Work Order: CE02123 Project: GFL Env - High Point LF, LLC Resample Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Benzene [71-43-2]^ 0.57 U ug/L 1 0.57 1.0 1CO2031 EPA 8260D 03/03/21 09:17 RKY Surrogates Results DF Snike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 45 1 50.0 90 % 53-136 1CO2031 EPA 8260D 03103121 09:17 RKY Dibromofluoromethane 49 1 50.0 98 % 67-129 ICO2031 EPA 6260D 03103121 09:17 RKY Toluene-& 61 1 50.0 121 % 59-134 ICO2031 EPA 8260D 03103121 09:17 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) of (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1CO2031 - EPA 5030E MS Blank (lCO2031-BLK1) Prepared: 03/02/2021 15:47 Analyzed: 03/03/2021 07:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Benzene 0.57 U 1.0 ug/L 4-Bromofluorobenzene 45 U91L 50.0 91 53-136 Dibromofluoromethane 49 u91L 50.0 99 67-129 Toluene-d8 61 u91L 50.0 122 59-134 LCS (lCO2031-BS1) Prepared: 03/02/2021 15:47 Analyzed: 03/03/2021 05:38 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Benzene 18 1.0 ug/L 20.0 92 80-134 Toluene 18 1.0 ug/L 20.0 91 71-120 4-Bromofluorobenzene 48 u91L 50.0 96 53-136 Dibromofluoromethane 47 u91L 50.0 94 67-129 Toluene-d8 63 u91L 50.0 126 59-134 Matrix Spike (1CO2031-MS1) Prepared: 03/02/2021 15:47 Analyzed: 03/03/2021 06:06 Source: CE03536-07 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes Benzene 19 1.0 ug/L 20.0 0.57 U 93 80-134 Toluene 19 1.0 ug/L 20.0 0.57 U 97 71-120 4-Bromofluorobenzene 45 u91L 50.0 90 53-136 Dibromofluoromethane 50 u91L 50.0 100 67-129 Toluene-d8 60 u91L 50.0 121 59-134 Matrix Spike Dup (1CO2031-MSD1) Prepared: 03/02/2021 15:47 Analyzed: 03/03/2021 06:33 Source: CE03536-07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Benzene 18 1.0 ug/L 20.0 0.57 U 92 80-134 0.4 17 Toluene 18 1.0 ug/L 20.0 0.57 U 92 71-120 5 17 4-Bromofluorobenzene 46 u91L 50.0 91 53-136 Dibromofluoromethane 48 u91L 50.0 96 67-129 Toluene-d8 59 u91L 50.0 118 59-134 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 8 (� �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. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 of 8 L~ cl Q O U w N U1ee �n O Z a U N W FE 0 a �c 0 m a z 4 a M LL W V) z O U J H Z W 2 Z O 5 Z W 0 72 co n w m a Ny ° a+l 2 Ecu F� E m t `D � ■.■ o � J d C Q U _ m a Q E J � I U O � N q m z 0 c 6 so V r 0.1 = ic o R ` X 'a � Z R O a U _E E E N N � N way apgZg x x x _ x v �O E E x c y 2 Lei N o �r V 41 N R � d u C m m 12 t^ N P OD+, i' S z N E a [� m m ro E a m O m � '� f•1YRJ c � � y U �_ �y M. E Z Ci CVLz U ( _. E GC OTC ¢ U GV 1 a a a s m N V � O LU N Z k a D rR O m O 04 V d Y E5 m q w m tod "J m d a rb E m (NI— D S7 cD z z LO C/ m n Pa e8of8 = 9 m a E a = 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. 2013788121.101 Sampling Event Date: January 19-20, 2021 Review Date: February 5, 2021 Report #: CE00534, CE00535 ,%b GOLDER Initials: DC QA/QC: RPK Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates Inc. has reviewed the laboratory certificates of analysis, chain -of -custody form, and laboratory provided sample group quality assurance and quality control data for the above referenced sample group to identify potential bias or inaccuracy, in general accordance with the following United States Environmental Protection Agency documents: • Region III Modifications to Functional Guidelines for Organic Data Review Multi -Media, Multi - Concentration, September 1994; • Region III Modifications to the Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, April 1993; and • Laboratory Data Validation Functional Guidelines for Evaluating Inorganic Analyses, July 1998. COMPLIANCE ANALYTE LIST(S) (check all that apply) NC Closed Facility List (.500 Rules) NC C & D List (New Rules) NC Appendix I NC Appendix I + Detects NC Appendix II (AMW-1, AMW-2, MW-6) NC Subtitle D Leachate List X Other: NC Appendix I, Mercury, Manganese, Iron, Chloride, Sulfate, Alkalinity, TDS & Tetrahydrofuran 1.0 CHAIN OF CUSTODY (COC) REVIEW DC COC was properly signed by all parties. DC Correct project name and number are on the form. • Listed as 20137881 should be 2013788121 DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 5 2.0 SAMPLE HOLDING TIMES * GOLDER DC Holding times for extraction and/or analysis were met for each analytical Method (see below for reference). Review Criteria Method Analytes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for analysis SW-846 Methods 6000 and 7000 Series Metals except mercury 6 months (no temperature requirements) SW-846 Method 7470 Mercury 28 days SW-846 Method 376.1 Sulfide 7 days SW-846 Method 9010 Cyanide 14 days EPA Method 300 Nitrate/Sulfate 48 hours/28 days EPA Method 405.1 BOD 48 hours EPA Method 410.4 COD 28 days EPA Method 365.4 Phosphorous 28 days 3.0 LABORATORY QUALITY CONTROL REVIEW DC Laboratory analyzed at least one internal blank for each method, where applicable. DC Laboratory blank is interference -free. DC Surrogate recoveries are provided for each analytical method, where applicable. DC Surrogate recoveries for each method are within the acceptable limits (i.e., at least 50% of the surrogates were within range). DC MS/MSD/LCS data results are provided for each analytical method. DC MS/MSD/LCS recoveries for each method are within the acceptable limits (i.e., at least 1 of the 3 were within range). y The 8260D LCS exhibited a high bias for 2-Butanone; however, this analyte was not detected in the associated samples. The Continuing Calibration Verification (CCV) exhibited a high bias for 1,1,1,2-Tetrachloroethane, 1,1,1-Trichloroethane, 1,1- Dichloroethene, 2-Butanone, 2-Hexanone, 4-Methyl-2-pentanone, Acetone, Acrylonitrile, Carbon disulfide, Carbon tetrachloride, cis-1,3-Dichloropropene, Dibromochloromethane, lodomethane, Methylene chloride, Tetrahydrofuran, trans-1,3-Dichloropropene, trans-1,4- Dichloro-2-butene, Trichlorofluoromethane, and Vinyl acetate; however, these analytes were not detected in the associated samples. The spike recoveries for 1,1,1,2- Tetrachloroethane, 1,1-Dichloroethene, Chlorobenzene, Dibromochloromethane, lodomethane, Methylene chloride, Toluene, and Trichloroethene were outside control limits for the MS and/or MSD samples, the precision between duplicate spikes of 1,2- Dichloroethane exceeded acceptance criteria. The QC batches were approved based on acceptable LCS recovery of these analytes. The spike recovery for 2-Butanone was outside control limits for the MS and/or MSD samples; however, this analyte was not detected in the associated samples.. The spike recoveries for Arsenic, Iron, and Manganese were outside control limits for the MS, MSD, and Post Digestion spike samples. The QC batches were approved based on GOLDER ASSOCIATES NC, INC. GOLDER QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 5 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 QC batches were approved based on acceptable LCS recovery of these analytes. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper EPA SM 2540C-1997 analytical methods were used for analysis. 5.0 DATA REPORTING DC All analytical reporting associated with the event was performed by the contracted lab. DC 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. • Field Blank o Manganese detected at 2.45 ug/L (J) add B Flags to MWA o Acetone detected at 25 ug/L add B Flags to MW-2 and AMW-2 DC It is clear from the laboratory report that samples have or have not been diluted during analysis, and if the samples have been diluted, the result is reported as a multiple of the dilution (e.g., a sample diluted 10x resulting in an analytical detection of 1.0 should be reported as 10). Those that have been diluted are listed below with the dilution factor. ➢ Antimony and Thallium — all wells and SW (2x) ➢ 1,4-Dioxane — MW-6 (5x) ➢ Total Alkalinity as CaCO3 — MW-7S (2x), MWA (4x), MW-8, AMW-1 (5x), MW-2, MW-6, AMW-2 (1Ox) ➢ Chloride: MW-2, MW-8, AMW-2 (2x), MW-6 (4x) ➢ Sulfate: MW-2, MW-8, AMW-2 (2x), MW-6 (4x) ➢ Total Dissolved Solids: MW-6 (2x) DC The report provides the reporting limit for each constituent. DC 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. DC No organic or organic constituents were reported above their respective NC 2L GOLDER ASSOCIATES NC, INC. .� GOLDER QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 4 of 5 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 ug/L) o MW-2 @ 1.9 ug/L o MW-6 @ 5.0 ug/L o MW-8 @ 1.7 ug/L o AMW-1 @ 1.2 ug/L o AMW-2 @ 1.0 ug/L ➢ Barium (NC 2L = 700 ug/L) o MW-6 @ 814 ug/L ➢ Chromium (NC 2L = 10 ug/L) o MW-8 @ 11.7 ug/L ➢ Cobalt (NC 2L IMAC = 1 ug/L) o MW-2 @ 8.19 ug/L (J) o MW-5 @ 1.62 ug/L (J) o MW-6 @ 13.9 ug/L o MW-8 @ 6.62 ug/L (J) o AMW-1 @ 15.5 ug/L o AMW-2 @ 10.3 ug/L o P-3 @ 2.25 ug/L (J)- UG ➢ Iron (NC 2L = 300 ug/L) o MW-2 @ 22800 ug/L o MW-4S @ 1720 ug/L o MW-5 @ 40200 ug/L o MW-6 @ 10100 ug/L o MW-8 @ 5460 ug/L o AMW-1 @ 14900 ug/L o AMW-2 @ 4970 ug/L ➢ Manganese (NC 2L = 50 ug/L) o MW-2 @ 14600 ug/L o P-3 @ 320 ug/L - UG o MW-4S @ 71.3 ug/L o MW-5 @ 1360 ug/L o MW-6 @ 6730 ug/L o MW-8 @ 28300 ug/L o AMW-1 @ 11100 ug/L o AMW-2 @ 2810 ug/L ➢ Total Dissolved Solids (NC 2L = 500 mg/L) o MW-2 @ 1400 mg/L o MW-6 @ 2300 mg/L o MW-8 @ 1200 mg/L o AMW-1 @ 970 mg/L o AMW-2 @ 760 mg/L ➢ Vanadium (NC 2L IMAC = 0.3 u /L MW-5 @ 1.48 ug/L (J) MW-7S @ 7.09 ug/L (J) ➢ Thallium (NC 2L IMAC = 0.2 ug/L) o MW-1 @ 0.487 ug/L (J) - UG o MW-2 @ 0.259 ug/L (J) o MW-3 @ 0.474 ug/L (J) o MW-4S @ 0.472 ug/L (J) o MW-7S @ 0.488 ug/L (J) o MW-8 @ 0.258 ug/L (J) o AMW-1 @ 0.378 ug/L (J) o AMW-2 @ 0.401 ug/L (J) o P-3 @ 0.520 ug/L(J) - UG ➢ Vinyl Chloride (NC 2L IMAC = 0.03 ug/L) o MW-8 @ 0.74 ug/L (J) ➢ 1.4-Dioxane (NC 2L = 3 ua/L) o MW-2 @ 50 ug/L o MW-6 @ 200 ug/L o MW-7S @ 5.8 ug/L o MW-8 @ 43 ug/L o AMW-1 @ 35 ug/L o AMW-2 @ 69 ug/L ➢ 1.4-Dioxane (Human Health = 0.35 u /L o SW-1 @ 0.83 ug/L (J) - upstream o SW-3 @ 4.9 ug/L - upstream o SW-2 @ 3.0 ug/L o SW-4 @ 4.6 ug/L DC 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). ➢ 1,1-Dichloroethane - MW-7S @ 0.54 ug/L (J) first time detection ➢ Cadmium - P-3 @ 2.76 ug/L first time detection ➢ Manganese - P3 @ 320 ug/L outside historical range ➢ Vinyl Chloride - MW-8 @ 0.74 ug/L first time detection GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 5 of 5 DC Other report issues/Communications with laboratory/etc.: GOLDER (� GOLDER golder.com