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Home My WebLink About4116_Guilford_WIHighPoint_CDLF_July2020GW_FID1450708_20200903J GOLDER REPORT SECOND SEMI-ANNUAL 2020 WATER QUALITY MONITORING REPORT High Point Construction & Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Submitted to: High Point C&D Landfill, LLC 5830 Riverdale Drive Jamestown, NC 27282 Submitted by: Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North Carolina, USP 97am +1 336 852-4903 ENR USE ONLY: - 1:]PaparReport ❑Electronic Data - Email CD data loaded: Yes 1 No_j Doc/Event #: NC DENR Environmental Monitoring Division of Waste Management - Solid Waste ReDortina Farm Notice: This form and any information attached to It are "Public Records" as defined in NC General Statute 132-1, AS such, these documents are available for inspection and examination by any person upon request (NC General Statute 132.6). Instructions: Prepare one form for each Individually monitored unit. • Please type or print legibly. Attach a notification table with values that attain or exceed NC 21. groundwater standards or NC 26 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-exlsling condition, etc_). • Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. • Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(I). • Sand the original signed and seated 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 i 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-mall address: Name: Darren Cox E-mail, decoxagolder com Phone: 336.852.4903 NC Landfill Rule: Actual sampling dates (e.g.. Facility name: Facility Address: Facility Permit # (,0500 or .1600) 0cl0er 20-24. 2006) Waste Industries of High Point 5830 Riverdale Drive. Jamestown. NC 41-16 .0500 July 7-8. 2020 C&D Landfill 27282 Environmental Status: (Check all that apply) 1nitiallBackground Monitoring ❑ Detection Monitoring 0 Assessment Monitoring L] Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells Methane gas monitoring data Groundwater monitoring data from private water supply wells Corrective action data (spenlfy) Leachate monitoring data Surface water monitoring data Q Other(specify) Notification attached? No. No groundwater or surface water standards were exceeded. }( Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard. NC 28 surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. Yes, a notification of values exceeding an explosive methane gas limit Is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the Information reported and statements made on this data submittal and attachments are true and Correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification Including tho possibility of a fine and imprisonment. Rachel P. Kirkman. PG Principal and Senlor Consultant 336-852-4903 Facility Repeeientative Name (Print) Title (Area Code) Telephone Number ,ZU� Affix NC Licensed) Professional Geologist Seal DDLL ,�.- 5ignature Date 4P Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, NC 27407a1rlV$,.r•• Facility Representative Address V e E C-2862 '. 1811 NC PE Firm License Number If applicable effective May 1, 2009) 05 N p++ � r Rovised 1312009 P 1 September 3, 2020 Distribution List 20137881.102 Seth Heath, General Manager, 5830 Riverdale Drive, Jamestown, NC 27282, seth.heath@gflenv.com, 336-886-3560. Catherine Hernandez, Operations Supervisor, 5830 Riverdale Drive, Jamestown, North Carolina 27282, Catherine.hernandez@gflenv.com. (Electronic Copy) David Pepper, Vice President, 3301 Benson Drive, Suite 601, Raleigh, NC 27609, David.pepper@gflenv.com, 919-877-2235. (Electronic Copy) Bryan Wuester, Corporate Landfill Director, 3301 Benson Drive, Suite 601, Raleigh, NC 27609, bryan.wuester@gflenv.com. (Electronic Copy) Travis Hitchcock, Region Vice President, 3301 Benson Drive, Suite 601, Raleigh, NC, 27609, travis.hitchcock@gflenv.com. (Electronic Copy) Jaclynne Drummond, Hydrogeologist, North Carolina Department of Environmental Quality, Division of Waste Management - Solid Waste Section, 2090 US Highway 70, Swannanoa, NC 28778, jaclynne.drummond@ncdern.gov, 828-296-4706. GOLDER September 3, 2020 20137881.102 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 July 7 - 8, 2020, semi- annual compliance monitoring event at the High Point Construction and Demolition Landfill. Three North Carolina (NC) Appendix I inorganic constituents (barium, cobalt, and chromium) were detected at quantifiable concentrations above their applicable groundwater standards during the July 2020 event in samples from one or more downgradient wells. Cobalt and vanadium were also detected at one or more wells at estimated concentrations below the practical quantitation limit (PQL) but above applicable groundwater standards during this event. As the concentrations are below their respective PQLs, no further action is warranted. Indicator parameters iron, manganese, and total dissolved solids (TDS) were detected at quantifiable concentrations above their respective NC 2L Standards in samples from one or more downgradient wells during this event, as they have been during previous events. As presented in previous reports and alternate source demonstrations (ASDs), based on published soil and stream sediment metals data for Guilford County, the barium, cobalt, vanadium, iron, and manganese concentrations reported in the groundwater samples were visually compared to and are generally within natural background concentrations. Piezometer P-3, which is located upgradient of the waste unit, was sampled during the July 2020 event to collect additional inorganic constituent data to further evaluate concentrations of inorganic constituents recently detected in samples from downgradient wells. One NC Appendix I organic compound, benzene, was detected above the NC 2L Standard in the sample from groundwater monitoring wells MW-2, MW-6 and AMW-2 during the July 2020 event, as it has been previously. 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 a concentration that exceeded the applicable surface water standards during the July 2020 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 in upstream monitoring point SW-3 and downstream surface water monitoring point SW-4. Because 1,4-dioxane was detected in the 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. As part of ongoing remedial efforts, Waste Industries 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 volatile organic compound groundwater contamination at groundwater monitoring wells MW-2 and MW-6. Due to the relatively low horizontal groundwater flow rates for the facility, Waste Industries continues 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 and MW-6 prior to evaluating additional remedies. Nested well pair MW-4S and MW-4D are located near the western facility boundary due southwest of the C&D landfill. Based 4 GOLDER September 3, 2020 20137881.102 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 benzene concentrations detected in MW-2, MW-6 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. During the July 2020 event, Waste Industries sampled piezometer P-3, which is located upgradient of the waste unit, to collect additional inorganic constituent data to further evaluate concentrations of inorganic constituents recently detected in samples from downgradient wells. This was the third of ten planned sampling events. The next event is tentatively scheduled for January 2021. 4 GOLDER September 3, 2020 20137881.102 Table of Contents 1.0 INTRODUCTION.............................................................................................................................................1 1.1 Site Description and Background.........................................................................................................1 1.2 Compliance Monitoring History ............................................................................................................1 1.3 Hydrogeologic Setting..........................................................................................................................2 2.0 FIELD PROGRAM, MONITORING RESULTS AND DISCUSSION..............................................................3 2.1 Visual Inspection Program...................................................................................................................3 2.2 Well Network and Groundwater Elevation Measurements..................................................................4 2.3 July 2020 Groundwater and Surface Water Monitoring Event.............................................................4 2.4 Laboratory Analysis Program...............................................................................................................5 3.0 LABORATORY AND FIELD QA/QC..............................................................................................................5 4.0 DATA EVALUATION......................................................................................................................................5 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons...............................5 5.0 CONCLUSIONS..............................................................................................................................................6 6.0 REFERENCES................................................................................................................................................7 TABLES Table 1 Summary of Historical Groundwater Elevation Data in Monitoring Wells Table 2 Summary of Estimated Horizontal Flow Velocities Table 3 Summary of Well Construction Information Table 4 Summary of Detected Constituents in Groundwater Table 5 Summary of Field Parameters in Groundwater Table 6 Summary of Detected Constituents in Surface Water Table 7 Summary of Field Parameters in Surface Water Table 8 Comparison of Field Parameters to Evaluate Pore Water Sampling ;1[r111N:K Figure 1 Groundwater Contour Map, July 7, 2020 APPENDICES Appendix A Groundwater and Surface Water Sampling Logs Appendix B July 2020 Groundwater and Surface Water Certificate -Of -Analysis, Chain -Of Custodies, and Laboratory Data Reviews GOLDER iv September 3, 2020 20137881.102 1.0 INTRODUCTION This report summarizes the monitoring results from the July 7 - 8, 2020, semi-annual compliance monitoring event at the High Point Construction & Demolition (C&D) Landfill in Guilford County, North Carolina (NC) in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 1313.0545. The active C&D Landfill is owned and operated under Permit No. 41-16 issued by the NC Department of Environmental Quality (DEQ). 1.1 Site Description and Background The location of the facility is shown on the inlay on Figure 1. As presented, High Point C&D Landfill is located along Riverdale Road within the city limits of Jamestown in Guilford County, NC. The site consists of approximately 154 acres, of which, approximately 17.2 acres is currently permitted as the Phase 1 and Phase 2 waste units. There are three small unnamed streams that traverse the site and flow into an unnamed tributary of Richland Creek, which forms the southern property boundary as shown on Figure 1. The first unnamed tributary is a southwest trending stream that forms the northwestern property boundary. The second tributary is a southwest trending drainage in the center of the property and lies just east of the Phase 2 waste unit. The third tributary is a southwest trending drainage in the eastern portion of the site. A large man-made pond is located near the eastern property boundary. A small storm water basin was constructed in the northwest corner of the facility and a larger storm water basin was constructed along the southwestern part of the site during the construction of Phase 1. Topographic surface elevations at the facility range from approximately 700 to 820 feet above mean sea level. The western portion of the site mainly consisted of trees and heavy brush before Phase 1 of the C&D landfill was constructed. Now, most of that area consists of landfill operations. The eastern portion of the site has historically been used for agricultural purposes. A reclamation facility is located at the northernmost part of the site. A large portion of the surrounding properties are agricultural, sparse residential, or owned by the City of High Point for operations associated with Kersey Valley Landfill. 1.2 Compliance Monitoring History Groundwater monitoring at the facility was initiated in October 2003 after approval of the Groundwater Monitoring Plan by the NC DEQ. Currently the facility's monitoring network is comprised of eight monitoring wells (MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, and MW-8), which monitor the uppermost aquifer beneath the facility. Monitoring wells MW-7S and MW-8 were installed in July 2006 to monitor the Phase 2 expansion at the facility. Two assessment monitoring wells, AMW-1 and AMW-2 were installed in December 2016. In addition to the groundwater monitoring points, the facility's monitoring network includes four surface water sampling points, SW-1 and SW-3, which are upstream from the waste area, and SW-2 and SW-4, which are downstream monitoring points. These points are sampled in conjunction with the groundwater monitoring wells in accordance with the facility's permit. Vinyl chloride and benzene were detected in the sample from downgradient monitoring well MW-2 at concentrations above their respective reporting limits and NC 2L Standards during the July 2014 sampling event. On February 3, 2015, an Alternate Source Demonstration (ASD) was submitted in response to this detection that provided evidence that an unidentified source other than the waste unit is likely responsible for the volatile organic 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. GOLDER September 3, 2020 20137881.102 Benzene was detected in the sample from MW-2 at a concentration above the SWSL and NC 2L Standard during the August 2015 sampling event and the facility transitioned to an Assessment Monitoring Program. An Assessment Monitoring Notification and Work Plan (Work Plan) was submitted to the NC DEQ on December 7, 2015 and was approved on January 28, 2016. The approved Work Plan stated that samples from groundwater monitoring wells MW-1 and MW-2 would be analyzed for the NC Appendix II list of constituents during the first semi-annual water quality monitoring event of 2016 and during subsequent events, MW-1 and MW-2 would be analyzed for NC Appendix I list of constituents plus detected NC Appendix II constituents. No additional NC Appendix II constituents were detected in the samples from MW-1 and MW-2 during the February 2016 event and therefore, future events will be analyzed for the NC Appendix I list of constituents. Benzene was detected in the sample from MW-6 at a concentration above the SWSL and NC 2L Standard during the July 2016 sampling event. Based on the July 2016 monitoring results, an Assessment Monitoring Notification and Work Plan Addendum (Addendum) was submitted to the NC DEQ on October 21, 2016 and was approved on October 31, 2016. The approved Addendum stated that assessment monitoring wells, AMW-1 and AMW-2, would be installed downgradient of MW-2 and MW-6, respectively. The Addendum also stated that samples from groundwater monitoring wells MW-6, AMW-1, and AMW-2 would be analyzed for the NC Appendix II list of constituents during the first semi-annual water quality monitoring event of 2017 and during subsequent events MW-6, AMW-1, and AMW-2 would be analyzed for NC Appendix I list of constituents plus detected NC Appendix II constituents. Assessment monitoring wells AMW-1 and AMW-2 were installed in December 2016 in accordance with the Addendum and sampled for the first time during the January 2017 event. As part of ongoing remedial efforts, High Point C&D Landfill completed final soil cap construction for Phases 1 and 2 in July 2017. Additionally, 14 in waste passive landfill gas vents were installed, some of which are located in proximity to areas of known VOC groundwater contamination at groundwater monitoring wells MW-2, MW-6, and MW-8. Based on average horizontal groundwater flow rates for the facility which are relatively low, it could take more than 25 years for groundwater located below the landfill gas vents to travel to the impacted groundwater monitoring wells. High Point C&D Landfill is continuing to evaluate the effects of the recently installed soil cap and landfill gas vents on groundwater quality along the western waste boundary at MW-2, MW-6, and MW-8 prior to evaluating any additional remedies. In response to exceedances of groundwater standards of inorganic constituents, Golder submitted an Assessment Monitoring Work Plan Addendum (AWMPA) on November 8, 2019, which proposed sample existing piezometer P-3 for inorganic constituents over five years to establish background concentrations. Well MW-15 was installed on May 9, 2019. The AWMPA was approved by the NC DEQ on November 14, 2019. 1.3 Hydrogeologic Setting Geologically, the facility is located within the Carolina Slate Belt of the Piedmont Physiographic Province of North Carolina (NCGS, 1985). Generally, the Carolina Slate Belt consists of Late Proterozoic to Cambrian volcanic and greenschist-facies metasedimentary rocks intruded by plutonic suites (Butler and Secor, 1991). The site geology is characterized by a regional -scale felsic intrusive complex, which consists mainly of white to gray, fine- to coarse -grained, massive to foliated metamorphosed granitic rock. The region is characterized by regional and small-scale Mesozoic diabase dikes. 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 GOLDER September 3, 2020 20137881.102 below grade along the perimeter downgradient boundary. Depth to water measurements, obtained during the July 2020 monitoring event and summarized in Table 1, were used to prepare a groundwater surface contour map presented on Figure 1. Surface water and groundwater at the site generally flows south to southwest towards a tributary of Richland Creek. Richland Creek is approximately 1300 feet south of the site and flows to the Deep River, which is approximately 0.5 miles from the site. Groundwater beneath the site flows in three distinguishable and vertically interconnected hydrogeologic units; saprolite, PWR, and bedrock. The groundwater surface contour map and interpreted flow directions are consistent with previously submitted interpretations for this facility. Based on the July 7, 2020, groundwater contour map, the average hydraulic gradient in the shallow aquifer underlying the site, as measured along the conceptual flow path shown on the contour map, was calculated to be approximately 0.043 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 July 2020 sampling event are discussed in the following sections. 2.1 Visual Inspection Program In order to ensure that a potential release is detected at the earliest possible time, the visual inspection program is used by Golder personnel at the High Point C&D Landfill. This program includes physical indicators such as potential water table mounding beneath the waste management unit, physical examination of any stresses in biological communities, visible signs of leachate migration (i.e., Ieachate seeps), unexplained changes in soil characteristics, and any other change to the environment due to the waste management unit. During the July 2020 compliance monitoring event no physical indicators of a potential release were observed in the vicinity of the waste management areas. GOLDER September 3, 2020 20137881.102 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 July 2020 Groundwater and Surface Water Monitoring Event Personnel from Golder visited the facility on July 7 - 8, 2020, to purge and sample monitoring wells MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, AMW-2, and P-3 and to sample surface water monitoring points SW-1, SW-2, SW-3, and SW-4. Depth -to -water measurements were obtained from the network monitoring wells and additional wells (MW-4D and MW-7D) to the nearest 0.01 foot using an electronic water level indicator prior to purging the wells. Surface water samples were not collected from points SW-1 and SW-2 due to dry conditions. Compliance and assessment monitoring wells were purged and sampled using low -flow sampling techniques from dedicated bladder pumps. Piezometer P-3 was purged and sampled using low -flow sampling techniques from a peristaltic pump. Measurements of temperature, pH, specific conductivity, dissolved oxygen (DO), oxidation- reduction potential (ORP), and turbidity were recorded on approximately 3- to 5-minute intervals during the purge, depending on the purge rate. In general, the purge rate was matched to the yield of the monitoring well, as determined by continuously monitoring the depth -to -water, not allowing the purge rate to exceed 350 milliliters per minute. Purging was continued until stabilization was indicated by the field parameters. Prior to sampling, the laboratory -supplied sample containers were prepared. Each sample container was labeled with the sample identification number, sampling personnel, date and time of sample collection, project name and number, and requested chemical analyses. The required groundwater samples were collected directly from the bladder pump discharge lines into the labeled, laboratory -supplied, pre -preserved sample containers after purging was completed based on stabilization of field parameters. GOLDER September 3, 2020 20137881.102 The surface water samples were collected directly from the stream flow, by lowering the sample containers into the stream flow with the opening facing away from the current flow, taking care to prevent the over flow of the sample containers and to minimize sample -induced turbidity. Measurements of temperature, pH, specific conductivity, DO, ORP, and turbidity were recorded during the collection of the surface water samples. After collection, the samples were placed in a cooler on ice, under chain -of -custody control. Copies of the sampling logs are presented in Appendix A. Included in each log is a description of the sampling equipment, sampling location, sampling method, field observations, and field measurements 2.4 Laboratory Analysis Program The July 2020 groundwater and surface water samples were shipped to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of -custody control for analysis. As presented, the January 2020 groundwater samples from MW-1, MW-2, MW-3, MW-4S, MW-5, MW-6, MW-7S, MW-8, AMW-1, and AMW-2 were analyzed for the NC Appendix I list of constituents plus the C&D indicator parameters specific to 15A NCAC 13B .544(a)(1)(D), tetrahydrofuran, and 1,4-dioxane. The surface water samples 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 July 9, 2020, in good condition and properly preserved. 3.0 LABORATORY AND FIELD QA/QC A field blank was collected by Golder personnel as part of the July 2020 sampling event. ENCO analyzed the field blank for the NC Appendix I list of constituents plus iron; manganese; mercury; 1,4-dioxane; and tetrahydrofuran. In addition to the field blank, a laboratory -prepared trip blank accompanied the volatile sample containers to and from the laboratory and was analyzed for NC Appendix I VOCs plus 1,4-dioxane and tetrahydrofuran. ENCO analyzed the laboratory blanks for the same parameters analyzed for the groundwater samples. A review of the laboratory data was performed by Golder personnel and is included in Appendix B. Based on data reviews performed by Golder, no data qualification was necessary. 4.0 DATA EVALUATION 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons Analytical results and field parameters for the July 2020 groundwater samples are summarized in Tables 4 and 5 along with available historical data. As presented in Table 4, Three NC Appendix I inorganic constituents were detected at quantifiable concentrations above their applicable groundwater standards during the July 2020 event: barium at MW-2, and cobalt at AMW-2. Chromium was also detected at MW-8 at a concentration just above NC 2L standard for the first time; dissolved chromium was detected just below the groundwater standard, indicating a possible turbidity bias for the sample. Future results will help determine trends. Cobalt in the samples from MW-2, MW-6, MW-8 and AMW-1 and vanadium in samples from MW-1, MW-2, MW-4S, MW-6 and MW-7S were also detected at estimated concentrations below the PQL, but above the groundwater standard, 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. GOLDER September 3, 2020 20137881.102 Indicator parameters iron, manganese, and total dissolved solids (TDS) were detected at quantifiable concentrations above their respective NC 2L Standards in samples from one or more downgradient wells during this event. As presented in previous reports and ASDs, based on published soil and stream sediment metals data for Guilford County, the barium, chromium, cobalt, vanadium, iron, and manganese concentrations reported in the groundwater samples were visually compared to and are generally within natural background concentrations. Further, additional analytical data is being collected from upgradient piezometer P-3 during semi-annual monitoring events to evaluate inorganic concentrations for the next four years. One NC Appendix I VOC, benzene, was detected at quantifiable concentrations above the NC 2L Standard in the samples from MW-2, MW-6 and AMW-2 during the July 2020 event. Benzene was detected at estimated concentrations below the NC 2L Standard in the samples from MW-8 and AMW-1. 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. 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-4D are located near the western facility boundary due southwest of the C&D landfill. Based on the data presented in Table 2, an upward component of groundwater flow is measured at MW-4S/D. Based on an evaluation of the elevation of an unnamed tributary to Richland Creek adjacent to MW-4S/D and water table elevation in MW-4S, the unnamed tributary is a receiving stream and above -standard concentrations of benzene detected at MW-2, MW-6 and AMW-2 are unlikely to extend off site. Analytical results and field parameters for the July 2020 surface water samples are summarized in Tables 6 and 7 along with available historical data. No NC Appendix I constituents were reported at a concentration above its applicable surface water standards during the event. 1,4-dioxane was reported at quantifiable concentrations above the applicable surface water standard in upstream monitoring point SW-3 and downstream surface water monitoring point SW-4. Because 1,4-dioxane was detected in the 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. 5.0 CONCLUSIONS During the July 2020 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 third of ten planned sampling events. The facility will continue monitoring in accordance with the requirements of the Assessment Monitoring Program as outlined in Title 15A NCAC 13B.0545, the Work Plan, and Addendum. The next groundwater monitoring event is tentatively scheduled for January 2021. 4 GOLDER September 3, 2020 6.0 REFERENCES 20137881.102 Butler, J. Robert and Secor, Donald T., Jr., 1991, The Central Piedmont, in Horton, J. W., Jr., and Zullo,V.A., eds., The Geology of the Carolinas: The University of Tennessee Press, p. 59 78. Joyce Engineering, Inc., 2002, Hydrogeologic Report & Groundwater Monitoring Plan; Volume One; Site Application, Section II; MRR of High Point, LLC Construction and Demolition Debris Landfill, HighPoint, North Carolina. Revised January 2003 and March 2003. NCGS (North Carolina Geologic Survey), 1985. Geologic Map of North Carolina United States Environmental Protection Agency, November 2003. Guidance for Developing Ecological Soil Screening Levels. GOLDER 7 September 3, 2020 Signature Page Golder Associates NC, Inc. ?Darren ox Rachel P. Kirkman, PG Staff Environmental Scientist Principal and Senior Consultant Engineering Lic. No. C-213621Geoiogy Lic. No. C-399 20137881.102 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. Golder and the G logo are trademarks of Golder Associates Corporation. hllps Jlgolderassocietes.shar9poini.ComrSde31122443(pro)eCt No* whrmCal workJ20137881 g0 high pain12020 env mgllphsae 199 wgmr2nd 5a wgmr2200 deliverablesi252 final reports issued120137881-102-r-reva-lin01_2nd 88_2920 np_WgmGdocM 4 GOLDEP 8 Tables September 2020 20137881.102 TABLE 1 Summary of Historical Groundwater Elevation Data in Monitoring Wells Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Monitoring Wells MW-1 MW-2 MW-3 MW-4S MW-413 MW-5 MW-6 MW-7S MW-7D MW-8 AMW-1 AMW-2 P-3 TOC Elevation 813.17 754.85 755.48 733.76 734.23 747.83 735.23 761.20 763.27 762.60 753.28 730.57 790.06 (ft AMSL) DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation�TWF DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation Date 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 AMSL10/08/03 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 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 GOLDER 1of1 September 2020 TABLE 2 Summary of Estimated Horizontal Flow Velocities Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina 20137881.102 July 2020 Gradient Gradient Gradient Horizontal Effective Hydraulic Flow Segment Segment Velocity Calculation Direction Length Elevations Gradient Porosity Conductivity (V9W, feet/year) Segment feet) (ne) (K, cm/sec) feet(feet)(i, i W 703 ------- 0.0427 0.09 1.37E-05 6.72 790------- iz SW 1448 ------- 740------- 0.0345 0.09 1.37E-05 5.44 i3 S 754 ------- 750------- 0.0530 0.09 1.37E-05 8.35 Notes: 1. Horizontal velocities based on the modified Darcy equation V9W = 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 �,> COLDER 1 of 1 September 2020 20137881.102 TABLE 3 Summary of Well Construction Information Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Well & Piezometer Number Date Installed Casing Diameter (inches) Coordinates Well Elevations Total Depth Drilled Screened Interval Lithology of Screened Interval Status Ground Surface TOC Northing Easting Depth (ft bgs) Elevation (ft AMSL) Depth (ft bgs) Elevation (ft AMSL) ft AMSL from to from to MW-1 09/29/03 2 802679.07 1727481.97 809.79 813.17 30.0 779.79 15.0 30.0 794.79 779.79 Bedrock Compliance Well MW-2 09/30/03 2 802512.12 1726072.14 752.30 754.85 16.5 735.80 6.5 16.5 745.80 735.80 PWR/Bedrock Compliance Well MW-3 10/02/03 2 802153.76 1725818.69 752.65 755.48 27.0 725.65 12.0 27.0 740.65 725.65 PWR/Bedrock Compliance Well MW-4S 02/20/02 2 801841.41 1725570.04 731.60 733.76 20.0 711.60 5.0 20.0 726.60 711.60 PWR/Bedrock Compliance Well MW-4D 02/19/02 2 801847.04 1725576.62 731.88 734.23 80.0 651.88 60.0 80.0 671.88 651.88 Bedrock Water Levels Only MW-5 02/19/02 2 801517.31 1726103.70 741.16 743.44 20.0 721.16 5.0 20.0 736.16 721.16 Saprolite/PWR/Bedrock Compliance Well MW-6 12/17/02 2 801625.07 1725754.72 733.53 735.23 15.5 718.03 8.5 15.5 725.03 718.03 PWR/Bedrock Compliance Well MW-7S 07/13/06 2 801358.30 1726660.50 761.20 763.52 45.0 716.20 30.0 45.0 731.20 716.20 PWR Compliance Well MW-7D 07/11/06 2 801341.60 1726657.80 761.24 763.27 70.0 691.24 60.0 70.0 701.24 691.24 Bedrock Water Levels Only MW-8 07/05/06 2 802748.00 1726285.20 760.57 762.60 25.0 735.57 15.0 25.0 745.57 735.57 Bedrock Compliance Well AMW-1 12/05/16 2 802509.49 1726046.32 750.82 753.28 15.0 735.82 5.0 15.0 745.82 735.82 Bedrock Assessment Well AMW-2 12/05/16 2 801580.59 1725717.37 728.19 730.57 15.0 713.19 5.0 15.0 723.19 713.19 Bedrock Assessment Well P-3 02/12/02 2 802083.27 1727807.85 787.62 790.06 25.0 762.62 10.0 25.0 777.62 762.62 Saprolite/PWR Background Piezometer Notes: 1. All elevations are referenced to mean sea level; depths are referenced to ground surface. 2. AMSL = above mean sea level 3. bgs = below ground surface 4. TOC = top of casing 5. PWR = partially weathered rock 6. MW-4S and MW-4D were installed as piezometers P-15S and P-15D, respectively, on February 19-20, 2002. 7. MW-5 was installed as piezometer P-12 on February 19, 2002. 8. MW-6 was installed as piezometer P-18 on December 17, 2002. 9. MW-7S and MW-7D were installed as piezometers P-30S and P-30D, respectively, on July 13 and 11, 2006. 10. MW-8 was installed as piezometer P-23 on July 5, 2006. 10. AMW-1 and AMW-2 were installed as assessment monitoring wells on December 5, 2016. GOL❑ER ,> 1 of 1 September 2020 TABLE 4 20137881.102 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Antimony ug/L 01/16/07 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND NC 21 IMAC = 1 ug/L ug/L 07/02/07 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND EPA MCL = 6 ug/L ug/L 01/30/08 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 6 ND -- ND 0.96 J ND ND 0.94 J -- -- -- -- ND ug/L 07/16/09 -- -- 6 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 6 ND -- ND 0.107 J ND ND 0.0910 J 0.206 J ND -- -- ND ug/L 07/01/10 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 6 0.307 J -- 0.620 J ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 6 0.257 B -- 1.30 B ND ND ND ND ND ND -- -- 0.461 J ug/L 01/14/13 -- -- 6 ND -- 0.672 J ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 6 0.221 J -- 0.767 J ND ND 0.238 J ND ND ND -- -- ND ug/L 01/30/14 -- -- 6 0.229 J -- 1.66 J ND ND 0.347 J ND ND ND -- -- ND ug/L 07/08/14 -- -- 6 ND -- 1.30 J ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.22 -- 6 ND -- 0.953 J 0.224 J ND ND ND ND ND -- -- ND ug/L 08/12/15 0.22 -- 6 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.22 -- 6 0.277 J -- ND ND ND 0.252 J ND ND ND -- -- ND ug/L 07/14/16 0.22 -- 6 ND -- 0.393 J ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.37 -- 6 ND -- 0.854 J ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.37 -- 6 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.25 -- 6 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 1.85 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.74 2 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.74 2 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.74 2 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.74 2 -- ND ND ND ND ND ND ND ND ND ND ND ND Arsenic ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 10 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 10 ug/L ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND J ug/L 01/16/07 -- -- 10 ND -- 2.5 B 2.8 B 2.4 B ND ND ND ND -- -- 2.4 ug/L 07/02/07 -- -- 10 ND -- ND ND ND 5.1 J ND ND ND -- -- ND J ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- 2.1 ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND ND 2.8 J ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 3.56 J -- ND 4.21 J 4.82 J ND 3.76 J -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 07/01/10 -- -- 10 3.96 B -- 6.39 B 5.99 B 6.13 B 6.64 B 3.12 B 3.16 B ND -- -- 3.54 ug/L 01/13/11 -- -- 10 ND -- 4.13 J ND 3.35 J 2.82 J 4.74 J 3.81 J ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- ND ND 3.12 J ND ND ND ND -- -- ND J ug/L 07/09/12 -- -- 10 3.41 B -- ND ND 4.41 B ND ND 3.18 B ND -- -- 3.13 ug/L 01/14/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 10 ND -- ND ND ND 6.93 J ND ND ND -- -- ND ug/L 07/08/14 -- -- 10 ND -- 5.83 J ND ND ND ND ND ND -- -- ND ug/L 03/03/15 5.4 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 6.8 -- 10 ND -- 8.12 J ND ND ND ND ND ND -- -- ND ug/L 02/17/16 6.8 -- 10 ND -- 6.94 J ND ND ND 9.29 J ND ND -- -- ND ug/L 07/14/16 6.8 -- 10 ND -- 9.80 J ND ND 7.81 J ND ND ND -- -- ND ug/L 01/11/17 6.8 -- 10 ND -- 14.1 ND ND ND ND ND ND ND ND ND (Dissolved) ug/L 01/11/17 6.8 -- 10 -- -- 8.1 J -- -- -- -- -- -- -- -- -- ug/L 07/11/17 6.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 6.8 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 7.6 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 7.6 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 7.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Barium ug/L 10/08/03 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 700 ug/L ug/L 01/23/04 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 2000 ug/L ug/L 07/08/04 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND J ug/L 07/12/06 -- -- 500 ND -- ND ND ND ND ND -- -- -- -- ND J ug/L 01/16/07 -- -- 100 141 -- 187 25.5 J 73.9 J 86.7 J 53.5 J 210 46.4 J -- -- 0.90 J ug/L 07/02/07 -- -- 100 137 -- 338 29.4 J 33.4 J 87.8 J 57.5 J 230 42.4 J -- -- 1.2 ug/L 01/30/08 -- -- 100 100 -- 190 46.9 J 66.6 J 110 82.2 J 143 66.8 J -- -- 0.30 ug/L 07/17/08 -- -- 100 102 -- 279 36.5 J 52.5 J 92.8 J 65.1 J 108 49.2 J -- -- ND ug/L 01/14/09 -- -- 100 101 -- 152 38.3 J 79.7 J 68.0 J 93.9 J -- -- -- -- ND J ug/L 07/16/09 -- -- 100 132 -- 252 39.1 J 65.9 J 71.6 J 99.0 J -- -- -- -- ND ug/L 01/04/10 -- -- 100 107 -- 188 37.4 J 117 51.7 J 111 98.5 J 37.3 J -- -- 0.552 ug/L 07/01/10 -- -- 100 117 -- 156 42.2 J 45.4 J 72.6 J 153 107 23.3 J -- -- ND ug/L 01/13/11 -- -- 100 100 -- 193 35.0 J 69.4 J 70.8 J 117 98.5 J 26.6 J -- -- ND ug/L 07/21/11 -- -- 100 125 -- 273 33.7 J 87.7 J 75.1 J 140 115 30.1 J -- -- ND ug/L 01/16/12 -- -- 100 108 -- 197 34.9 J 114 58.2 J 161 118 36.3 J -- -- ND J ug/L 07/09/12 -- -- 100 115 -- 338 31.5 J 48.3 J 67.5 J 223 122 40.0 J -- -- ND J ug/L 01/14/13 -- -- 100 125 -- 333 47.2 J 74.0 J 66.4 J 162 142 50.2 J -- -- 1.46 J ug/L 07/09/13 -- -- 100 88.7 J -- 308 36.9 J 46.2 J 60.3 J 126 137 61.9 J -- -- 1.37 J ug/L 01/30/14 -- -- 100 78.8 J -- 297 44.6 J 88.7 J 59.5 J 146 154 79.7 J -- -- 1.08 J ug/L 07/08/14 -- -- 100 73.8 J -- 542 40.3 J 53.5 J 57.3 J 174 156 69.6 J -- -- 1.13 J ug/L 03/03/15 1.0 -- 100 62.3 J -- 427 42.5 J 51.4 J 49.5 J 192 181 86.0 J -- -- 3.04 ug/L 08/12/15 1.0 -- 100 62.7 J -- 649 35.3 J 74.7 J 61.8 J 203 181 47.6 J -- -- 2.33 ug/L 02/17/16 1.0 -- 100 53.3 J -- 428 33.4 J 96.6 J 46.6 J 269 194 57.0 J -- -- ND ug/L 07/14/16 1.0 -- 100 51.1 J -- 488 43.0 J 67.1 J 59.1 J 319 192 62.8 J -- -- 1.51 J ug/L 01/11/17 1.0 -- 100 53.0 J -- 726 42.7 J 76.7 J 75.4 J 378 215 77.4 J 113 160 ND (Dissolved) ug/L 01/11/17 1.0 -- 100 -- -- 337 -- -- -- -- -- -- -- -- -- ug/L 07/11/17 1.0 -- 100 49.8 J -- 528 38.8 63.6 53.2 414 218 94.6 80.9 177 1.39 J ug/L 01/09/18 1.0 -- 100 46.8 J -- 926 46.3 J 87.3 J 88.0 J 615 263 128 143 327 ND (Dissolved) ug/L 01/09/18 1.0 -- 100 -- -- 377 -- -- -- -- -- -- -- -- -- ug/L 07/26/18 1.1 10 -- 36.2 -- 859 32.9 71.4 61.4 551 223 125 179 312 ND ug/L 01/30/19 1.1 10 -- 37.6 -- 309 32.8 80.2 39.5 530 240 143 213 170 ND ug/L 07/10/19 1.1 10 -- 37.7 53.0 1110 55.5 124 59.1 763 252 151 157 329 2.91 J ug/L 01/29/20 1.1 10 -- 41.3 50.8 431 36.8 88.8 51.8 724 303 156 332 147 ND ug/L 07/07/20 1.1 10 -- 36.0 43.2 935 39.5 72.0 40.6 687 282 136 259 256 ND Beryllium ug/L 01/16/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND NC 2L IMAC= 4 ug/L ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND EPA MCL = 4 ug/L ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- 0.135 J ND ND 0.0900 J ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- 0.674 J ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND 0.176 J ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.10 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.10 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.10 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.10 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.10 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.16 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.16 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.16 1 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.16 1 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.16 1 -- ND ND ND ND ND ND ND ND ND ND ND ND Cadmium ug/L 10/08/03 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 2 ug/L ug/L 01/23/04 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 5 ug/L ug/L 07/08/04 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 0.350 B -- 0.390 B 0.310 B 0.200 B 0.111 B 0.293 B -- -- -- -- 1.19 ug/L 01/04/10 -- -- 1 0.299 J -- 0.770 J 0.269 J ND ND 0.296 J 0.153 J 0.344 J -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.36 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.36 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.36 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.36 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.36 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.36 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.36 1 -- ND -- ND ND ND 0.483 J ND ND ND ND ND ND ug/L 07/10/19 0.36 1 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.36 1 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.36 1 -- ND ND ND ND ND ND ND ND ND ND ND ND .,> GOLDEN 1 of 7 September 2020 TABLE 4 20137881.102 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Chromium ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 10 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 100 ug/L ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug L 01/09/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 2.2 J -- ND ND ND ND ND 17.0 ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND ND ND 19.0 ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND 5.3 J 4.9 J ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 0.772 J -- 4.78 J 1.01 J 0.793 J 0.722 J 0.736 J -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 4.22 J 2.58 J ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 10 6.26 B -- ND 6.00 B ND ND ND 1.29 B ND -- -- 1.80 J ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND 1.26 J ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- 3.62 J ND 14.3 (1.06 J) ND 1.95 J 2.46 J ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 3.77 J ND 1.70 J ND 4.53 J ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- 6.97 J ND ND ND 5.41 J ND ND -- -- ND J ug/L 01/14/13 -- -- 10 ND -- 3.73 B 1.19 B 1.03 B 1.08 B 2.77 B 1.57 B 1.32 B -- -- 1.40 ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND 1.78 J ND ND -- -- ND ug/L 01/30/14 -- -- 10 ND -- ND ND ND ND 2.42 J ND 2.08 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- 3.68 J 2.83 J 10.9 (ND) ND 3.76 J 1.44 J ND -- -- ND ug/L 03/03/15 1.4 -- 10 ND -- 6.93 B ND 1.54 B ND 5.74 B 1.43 B 2.11 B -- -- 1.66 ug/L 08/12/15 1.4 -- 10 ND -- 1.66 J ND ND ND 3.94 J ND ND -- -- ND ug/L 02/17/16 1.4 -- 10 ND -- 5.24 J 6.61 J 1.40 J ND 4.34 J ND ND -- -- ND ug/L 07/14/16 1.4 -- 10 ND -- ND ND ND ND 1.70 J ND ND -- -- ND ug/L 01/11/17 1.4 -- 10 ND -- ND ND ND ND 2.10 J ND ND ND ND ND ug/L 07/11/17 1.4 -- 10 ND -- 1.53 J ND ND ND 4.01 J ND ND ND 1.94 J ND ug/L 01/09/18 1.4 -- 10 ND -- ND ND 3.61 J ND 6.11 J 1.89 J 3.33 J ND 4.12 J ND ug/L 07/26/18 1.4 10 -- ND -- 4.63 J ND ND ND 5.60 J ND 3.35 J ND 3.72 J ND ug/L 01/30/19 1.4 10 -- ND -- 1.94 J 6.90 J ND ND 5.04 J 1.51 J 3.14 J 1.47 J 1.73 J ND ug/L 07/10/19 1.4 10 -- ND 2.26 J 2.96 J 1.61 J ND ND 5.03 J 1.61 J ND ND 2.77 J ND ug/L 01/29/20 1.4 10 -- ND ND 2.11 J 2.11 J ND ND 5.79 J ND 2.57 J 1.80 J 1.90 J ND ug/L 07/07/20 1.4 10 -- ND ND 8.88 J 8.77 J ND ND 6.80 J ND 12.3 (10.5) 4.37 J 2.95 J ND (Dissolved) ug/L 07/07/20 1.4 10 -- -- -- -- -- -- -- -- -- 9.55 J -- -- Cobalt ug/L 01/16/07 -- -- 10 ND -- 14.6 ND ND 3.0 J 5.9 J 3.9 J ND -- -- ND NC 2L IMAC = 1 ug/L ug/L 07/02/07 -- -- 10 ND -- 27.4 ND ND 4.7 J ND 6.0 J ND -- -- ND No EPA MCL ug/L 01/30/08 -- -- 10 ND -- 11.6 ND ND 5.6 J ND ND ND -- -- ND ug/L 07/17/08 -- -- 10 ND -- 27.6 ND ND 1.4 J ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- 9.4 J ND 1.2 J 4.1 J 13.0 -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- 26.5 ND 1.65 J 3.30 J 5.05 J -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 17.8 ND ND 3.90 J 9.94 J ND ND -- -- ND ug/L 07/01/10 -- -- 10 ND -- 14.4 ND ND 3.65 J 24.0 ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- 15.7 ND ND 5.50 J 11.0 ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- 19.7 ND 1.27 J 5.87 J 17.0 ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 14.3 ND ND 3.61 J 24.8 ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- 18.4 ND 1.43 J 6.03 J 24.8 ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- 13.5 ND 1.74 J 3.55 J 18.8 ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- 13.5 ND 1.26 J 2.54 J 9.81 J ND 3.33 J -- -- ND ug/L 01/30/14 -- -- 10 ND -- 13.0 ND ND 2.39 J 14.8 ND 4.60 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- 23.4 ND 1.83 J 1.87 J 21.0 ND 4.34 J -- -- ND ug/L 03/03/15 1.1 -- 10 ND -- 15.2 ND ND 2.20 J 25.3 ND 4.31 J -- -- ND ug/L 08/12/15 1.1 -- 10 1.18 J -- 19.4 ND 3.09 J 2.34 J 20.8 ND 3.55 J -- -- ND ug/L 02/17/16 1.1 -- 10 1.14 J -- 14.9 ND 1.59 J 1.70 J 14.3 ND 2.83 J -- -- ND J ug/L 07/14/16 1.1 -- 10 ND -- 15.6 ND ND ND 17.1 ND 4.28 J -- -- ND ug/L 01/11/17 1.1 -- 10 ND -- 17.9 ND ND 3.89 J 14.7 ND 4.39 J 7.41 J 7.90 J ND ug/L 07/11/17 1.1 -- 10 ND -- 10.7 ND ND ND 10.4 ND 6.25 J 5.03 J 11.1 ND (Dissolved) ug/L 07/11/17 1.1 -- 10 -- -- -- -- -- -- -- -- -- -- 10.4 -- ug/L 01/09/18 1.1 -- 10 ND -- 18.8 J ND 3.92 J 2.58 J 15.9 ND 8.32 J 9.14 J 17.1 ND ug/L 07/26/18 1.4 10 -- ND -- 12.8 ND 3.12 J ND 12.0 ND 12.0 12.3 19.3 ND ug/L 01/30/19 1.4 10 -- ND -- 6.47 J ND ND ND 15.8 ND 7.87 J 8.79 J 9.23 J ND ug/L 07/10/19 1.4 10 -- ND ND 13.9 ND ND ND 15.3 ND 8.19 J 7.80 J 15.0 ND ug/L 01/29/20 1.4 10 -- ND ND 6.74 J ND ND 2.20 J 12.6 ND 11.7 12.3 8.21 J ND ug/L 07/07/20 1.4 10 -- ND ND 9.72 J ND ND ND 4.77 J ND 9.29 J 8.92 J 10.9 ND 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 02/17/16 1.6 -- 10 ND -- ND ND ND ND ND ND 3.28 B -- -- 3.66 ug/L 07/14/16 1.6 -- 10 ND -- ND ND ND ND ND ND 1.99 B -- -- 3.50 J ug/L 01/11/17 1.6 -- 10 4.48 B -- 2.78 B 3.45 B 3.26 B 1.97 B 2.25 B 3.25 B 6.10 B 3.40 B 3.28 B 6.33 J ug/L 07/11/17 1.6 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 1.6 -- 10 ND -- ND ND 3.97 J ND ND ND ND ND ND ND ug/L 07/26/18 1.6 10 -- ND -- ND ND ND ND ND ND ND ND ND 2.02 J ug/L 01/30/19 1.6 10 -- ND -- ND ND ND ND ND ND 2.19 J ND ND ND ug/L 07/10/19 1.6 10 -- 2.47 B 1.92 B 2.12 B ND 2.38 B ND ND ND 2.60 B 2.22 B ND 3.52 J ug/L 01/29/20 1.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 1.6 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Lead ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 15 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 15 ug/L# ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 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 08/12/15 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 ug/L 01/11/17 3.1 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 3.1 -- 10 ND -- 5.28 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 07/26/18 3.1 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 3.1 10 -- ND -- ND ND ND ND ND ND 6.37 J ND ND ND ug/L 07/10/19 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 3.1 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Mercury ug/L 10/08/03 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 1 ug/L ug/L 01/23/04 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/08/04 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 0.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 07/02/07 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 01/30/08 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 0.2 ND -- ND ND ND ND ND -- -- -- -- -- ug/L 07/16/09 -- -- 0.2 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- -- ug/L 01/16/12 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 0 ND -- ND ND ND ND ND ND ND -- -- ND J ug/L 03/03/15 -- -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.17 -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.17 -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.17 -- 0.2 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.17 -- 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.099 -- 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.099 -- 0.2 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.15 0.20 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.15 0.20 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.15 0.20 -- ND 0.289 ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.15 0.20 -- ND 0.222 ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.15 0.20 -- 0.229 0.274 ND ND ND ND ND ND ND ND ND ND .,> GOLDEN 2 of 7 September 2020 TABLE 4 20137881.102 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Nickel ug/L 01/16/07 -- -- 50 3.8 1 -- ND ND ND ND ND 17.2 1 ND -- -- ND NC 2L = 100 ug/L ug/L 07/02/07 -- -- 50 ND -- 3.0 1 ND ND ND ND 19.0 1 ND -- -- ND No EPA MCL ug/L 01/30/08 -- -- 50 2.5 1 -- 3.6 1 2.4 1 3.7 1 6.5 1 ND 6.0 1 3.3 1 -- -- ND ug/L 07/17/08 -- -- 50 2.1 1 -- ND ND ND 3.8 1 ND 2.3 1 ND -- -- ND ug/L 01/14/09 -- -- 50 2.4 1 -- ND 5.1 1 5.3 1 ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 50 0.790 B -- 4.11 B 1.47 B 0.988 B 1.04 B 1.05 B -- -- -- -- 3.80 ug/L 01/04/10 -- -- 50 ND -- 2.59 1 ND ND 3.20 1 ND ND ND -- -- ND ug/L 07/01/10 -- -- 50 ND -- ND ND ND ND 2.29 1 ND ND -- -- ND ug/L 01/13/11 -- -- 50 ND -- ND ND ND ND 5.20 1 ND ND -- -- ND ug/L 07/21/11 -- -- 50 ND -- ND ND 2.44 1 ND 5.56 1 ND ND -- -- ND ug/L 01/16/12 -- -- 50 ND -- ND ND ND ND 2.77 1 ND ND -- -- ND ug/L 07/09/12 -- -- 50 ND -- ND ND ND ND 6.24 1 ND ND -- -- ND ug/L 01/14/13 -- -- 50 ND -- ND 2.05 1 ND 4.29 1 3.86 1 ND ND -- -- ND ug/L 07/09/13 -- -- 50 ND -- 2.37 1 ND ND ND 4.34 1 2.81 1 3.27 1 -- -- ND ug/L 01/30/14 -- -- 50 ND -- ND ND 1.86 1 ND 5.05 1 ND 5.44 1 -- -- ND ug/L 07/08/14 -- -- 50 ND -- 2.85 1 1.86 1 6.10 1 ND 4.71 1 ND 3.36 1 -- -- ND ug/L 03/03/15 1.8 -- 50 ND -- 3.01 1 ND ND ND 6.41 1 ND 3.19 1 -- -- ND ug/L 08/12/15 1.8 -- 50 ND -- 2.73 1 ND ND ND 5.84 1 ND 3.37 1 -- -- ND ug/L 02/17/16 1.8 -- 50 ND -- ND 2.27 1 ND ND 3.23 1 ND 5.44 1 -- -- ND ug/L 07/14/16 2.2 -- 50 ND -- ND ND ND ND 4.27 B 2.20 B 3.63 B -- -- 11.9 ug/L 01/11/17 2.2 -- 50 ND -- ND ND ND ND 4.40 1 3.14 1 4.87 1 ND 2.57 1 ND ug/L 07/11/17 2.2 -- 50 ND -- ND ND ND ND ND ND ND ND 2.60 1 ND ug/L 01/09/18 2.2 -- 50 ND -- ND 2.41 1 5.17 1 ND 4.45 1 2.42 1 2.52 1 ND 3.86 1 ND ug/L 07/26/18 2.2 10 -- 2.41 1 -- 4.88 1 2.42 1 ND ND 5.29 1 3.06 1 7.98 1 2.62 1 5.35 1 ND ug/L 01/30/19 2.2 10 -- 2.43 1 -- ND 2.41 1 ND ND 5.79 1 2.42 1 7.83 1 2.41 1 2.49 1 ND ug/L 07/10/19 2.2 10 -- ND 2.35 1 4.93 1 ND ND ND 7.14 1 3.49 1 6.67 1 ND 4.45 1 ND ug/L 01/29/20 2.2 10 -- ND ND 3.71 1 2.56 1 ND ND 7.23 1 4.18 1 8.97 1 3.39 1 2.90 1 ND ug/L 07/07/20 2.2 10 -- ND ND ND 2.85 1 ND ND 3.09 1 2.29 1 2.25 1 2.54 1 2.96 1 ND Selenium ug/L 10/08/03 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 20 ug/L ug/L 01/23/04 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 50 ug/L ug/L 07/08/04 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND u g -- -- 20 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND 2.0 1 ND ND -- -- ND ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND 4.0 1 ND ND 3.1 1 -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 1.59 1 ND ND ND 2.05 1 ND ND -- -- ND ug/L 07/01/10 -- -- 10 ND -- 2.72 1 ND ND ND 3.59 1 ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.91 -- 10 ND -- 1.55 1 ND ND ND ND ND ND -- -- ND ug/L 08/12/15 5.0 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 5.0 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 6.2 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 6.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 6.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 6.2 -- 10 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 6.2 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 6.2 10 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 6.2 10 -- ND ND ND ND ND ND ND ND ND ND ND ND Silver ug/L 10/08/03 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 20 ug/L ug/L 01/23/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 100 ug/L ug/L 07/08/04 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/25/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/06/05 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/09/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/16/07 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 10 ND -- ND ND ND 2.5 1 ND ND 2.0 1 -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 ND -- 3.75 1 0.990 1 ND 1.70 1 ND -- -- -- -- ND ug/L 01/04/10 -- -- 10 ND -- 1.92 1 ND ND 1.09 1 ND ND ND -- -- ND ug/L 07/01/10 -- -- 10 ND -- 2.66 1 ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- 3.19 1 ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 3.59 1 -- 2.28 1 ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- 2.37 1 ND 3.30 1 ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- 2.38 1 ND ND ND 2.88 1 ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- 3.43 1 3.86 1 ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 2.69 1 -- 4.48 1 ND 3.36 1 1.90 1 2.31 1 4.86 1 6.81 1 -- -- ND ug/L 01/30/14 -- -- 10 ND -- 2.95 1 ND ND ND ND ND 2.21 1 -- -- ND ug/L 07/08/14 -- -- 10 ND -- 5.41 1 ND ND ND ND ND 2.58 1 -- -- ND ug/L 03/03/15 1.9 -- 10 ND -- 7.35 1 ND ND ND ND ND ND -- -- ND ug/L 08/12/15 1.9 -- 10 2.57 B -- 9.84 B ND 4.90 B 5.27 B 10.6 B 2.14 B 4.53 B -- -- 2.59 ug/L 02/17/16 1.9 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 1.9 -- 10 ND -- 4.41 1 ND ND ND ND ND ND -- -- ND ug/L 01/11/17 1.9 -- 10 ND -- 6.32 1 ND ND ND ND ND 2.06 1 ND ND ND ug/L 07/11/17 1.9 -- 10 5.30 1 -- ND ND ND ND 3.78 1 ND 2.59 1 3.30 1 2.57 1 ND ug/L 01/09/18 1.9 -- 10 3.53 1 -- 15.5 1 2.41 1 4.04 1 ND 5.69 1 4.13 1 9.94 1 2.72 1 3.35 1 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 1 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 Thallium ug/L 01/16/07 -- -- 5.5 ND -- 0.048 1 ND ND ND ND ND ND -- -- ND NC 2L IMAC = 0.2 ug/L ug/L 07/02/07 -- -- 5.5 0.043 1 -- 0.097 1 ND ND ND ND ND ND -- -- ND EPA MCL = 2 ug/L ug/L 01/30/08 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 5.5 ND -- 0.046 1 ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 5.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 5.5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 5.5 ND -- ND ND ND 0.489 J ND ND ND -- -- ND ug/L 07/08/14 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.11 -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.11 -- 5.5 0.575 1 -- 0.211 1 0.502 1 0.482 1 0.414 1 0.169 1 0.303 1 0.345 1 -- -- 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 1 -- ND 0.118 1 ND ND ND ND ND 0.143 1 0.148 1 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 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.22 2 -- 0.410 1 -- 0.223 1 0.399 1 0.354 J ND ND 0.263 J ND 0.293 1 0.263 J ND ug/L 07/10/19 0.22 2 -- 0.315 J ND ND ND ND ND ND ND ND ND 0.401 J ND ug/L 01/29/20 0.22 2 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.22 2 -- ND ND ND ND ND ND ND ND ND ND ND ND Vanadium ug/L 01/16/07 -- -- 25 7.5 1 -- ND ND 4.4 J ND ND 34.4 ND -- -- ND NC 2L IMAC = 0.3 ug/L ug/L 07/02/07 -- -- 25 5.9 1 -- ND 1.9 1 2.3 J ND ND 44.3 2.6 1 -- -- ND No EPA MCL ug/L 01/30/08 -- -- 25 3.7 1 -- ND ND 3.6 J ND ND 13.3 J ND -- -- ND ug/L 07/17/08 -- -- 25 2.5 1 -- ND ND 2.9 J ND ND 11.4 J ND -- -- ND ug/L 01/14/09 -- -- 25 1.7 1 -- ND ND 6.8 J ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 25 2.16 1 -- ND 1.08 1 3.75 1 1.59 1 0.965 1 -- -- -- -- ND ug/L 01/04/10 -- -- 25 1.91 1 -- ND 0.544 1 3.00 J ND ND 10.1 1 2.43 1 -- -- ND ug/L 07/01/10 -- -- 25 ND -- ND ND ND ND ND 10.5 J ND -- -- ND ug/L 01/13/11 -- -- 25 1.80 1 -- ND ND 2.32 J ND ND 10.2 J ND -- -- ND ug/L 07/21/11 -- -- 25 ND -- ND ND 24.6 J ND ND 9.72 J ND -- -- ND ug/L 01/16/12 -- -- 25 1.73 1 -- ND ND 42.6 ND ND 9.90 J ND -- -- ND ug/L 07/09/12 -- -- 25 1.55 1 -- ND ND 2.05 J ND ND 9.46 J ND -- -- ND ug/L 01/14/13 -- -- 25 1.81 1 -- ND ND ND ND ND 10.6 J ND -- -- ND ug/L 07/09/13 -- -- 25 ND -- ND ND 2.32 J ND ND 9.62 J ND -- -- ND ug/L 01/30/14 -- -- 25 ND -- ND ND 6.97 J ND ND 9.31 J ND -- -- ND ug/L 07/08/14 -- -- 25 ND -- ND ND ND ND ND 9.21 J ND -- -- ND ug/L 03/03/15 1.4 -- 25 ND -- ND ND 6.10 J ND ND 9.36 J ND -- -- ND ug/L 08/12/15 1.4 -- 25 ND -- ND ND 4.78 J ND 1.59 1 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 1 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 1 1.89 1 2.10 1 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 1 8.76 J ND ND ND ND ug/L 01/30/19 1.4 10 -- 1.50 1 -- 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 1 9.57 J ND ND ND ND ug/L 01/29/20 1.4 10 -- ND ND ND ND ND ND ND 10.1 ND ND ND ND ug/L 07/07/20 1.4 10 -- 1.57 J ND 1.98 J ND 1.40 J ND 2.93 1 8.72 J ND ND ND ND .,> GOLDEN 3 of 7 September 2020 TABLE 4 20137881.102 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Zinc ug/L 01/16/07 -- -- 10 25.7 B -- 4.0 B 6.5 B 23.4 B 9.1 B 11.0 B 48.1 B 7.4 B -- -- 10.0 NC 2L = 1000 ug/L ug/L 07/02/07 -- -- 10 ND -- 28.0 ND ND ND 10.1 41.1 3.9 J -- -- ND EPA MCL = 5000 ug/L* ug/L 01/30/08 -- -- 10 2.3 B -- 1.8 B 2.9 B 3.8 B 3.0 B 4.9 B 9.1 J 4.4 B -- -- 1.6 ug/L 07/17/08 -- -- 10 ND -- ND ND ND ND 4.2 J ND ND -- -- ND ug/L 01/14/09 -- -- 10 ND -- 3.8 J ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 10 6.77 B -- 4.89 B 5.55 B 7.01 B 5.28 B 3.44 B -- -- -- -- 20.5 ug/L 01/04/10 -- -- 10 1.72 B -- 6.20 B 2.24 B 2.35 B 2.57 B 3.88 B ND 2.98 B -- -- 2.25 ug/L 07/01/10 -- -- 10 ND -- ND ND ND 6.66 J 7.04 J 4.90 J ND -- -- ND ug/L 01/13/11 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 10 ND -- ND ND 4.06 J ND 5.52 J ND ND -- -- ND ug/L 01/16/12 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 10 ND -- ND ND ND ND 5.67 J ND ND -- -- ND ug/L 01/14/13 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 10 ND -- ND ND ND ND 4.35 J ND 3.98 J -- -- ND ug/L 01/30/14 -- -- 10 3.97 J -- 4.83 J 4.13 J 5.51 J ND 5.86 J ND 7.30 J -- -- ND ug/L 07/08/14 -- -- 10 ND -- ND 3.86 J ND 9.69 J ND ND 5.50 J -- -- ND ug/L 03/03/15 3.8 -- 10 ND -- ND ND 4.77 J ND ND ND ND -- -- ND ug/L 08/12/15 3.8 -- 10 ND -- 4.12 J ND 8.46 J ND 15.8 ND 9.95 J -- -- ND ug/L 02/17/16 3.8 -- 10 60.0 -- 5.54 J ND 25.8 6.06 J ND ND 4.75 J -- -- ND ug/L 07/14/16 4.4 -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 4.4 -- 10 ND -- ND ND ND ND ND ND 6.11 J ND ND ND ug/L 07/11/17 4.4 -- 10 ND -- 5.01 J ND ND ND ND ND ND ND ND ND ug/L 01/09/18 4.4 -- 10 ND -- ND ND 4.68 J ND ND ND 6.05 J ND ND ND ug/L 07/26/18 4.4 10 -- 4.43 J -- 4.90 J ND 7.68 J 4.54 J ND ND ND ND ND ND ug/L 01/30/19 4.4 10 -- ND -- ND ND ND 8.31 J ND ND ND ND ND ND ug/L 07/10/19 4.4 10 -- 5.55 J ND 6.70 J ND 4.62 J ND ND ND ND ND ND ND ug/L 01/29/20 4.4 10 -- ND ND ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 4.4 10 -- ND ND ND 7.83 J ND ND ND 4.52 J ND ND ND ND Iron ug/L 01/16/07 -- -- -- 2530 -- 3410 80 J 1020 9860 700 16400 680 -- -- -- NC 2L = 300 ug/L ug/L 07/02/07 -- -- 300 1510 -- 18600 46 J 314 4960 592 19500 497 -- -- -- EPA MCL = 300 ug/L* ug/L 01/30/08 -- -- 300 533 -- 327 31 J 2220 21100 106 J 3320 1110 -- -- ND ug/L 07/17/08 -- -- 300 161 J -- 10300 ND 1730 8620 ND 448 69 J -- -- ND ug/L 01/14/09 -- -- 300 65 J -- 2740 26 J 3300 28800 1110 -- -- -- -- ND ug/L 07/16/09 -- -- 300 84.2 J -- 18000 ND 2490 7570 642 -- -- -- -- ND ug/L 01/04/10 -- -- 300 155 J -- 10700 90.1 J 1980 33600 1750 58.6 J 228 J -- -- ND ug/L 07/01/10 -- -- 300 42.7 J -- 21100 63.2 J 1050 42000 4290 132 J ND -- -- ND ug/L 01/13/11 -- -- 300 30.4 J -- 29100 36.4 J 803 4120 1170 269 J 90.9 J -- -- ND ug/L 07/21/11 -- -- 300 44.5 J -- 35900 47.1 J 21100 37800 1900 85.7 J 41.0 J -- -- -- ug/L 01/16/12 -- -- 300 133 J -- 15700 37.9 J 11300 45400 5270 90.1 J 27.6 J -- -- ND ug/L 07/09/12 -- -- 300 32.7 J -- 44700 28.2 J 1800 17000 7570 43.8 J 49.2 J -- -- ND ug/L 01/14/13 -- -- 300 50.4 J -- 31300 72.9 J 1440 5230 3040 143 J 148 J -- -- ND ug/L 07/09/13 -- -- 300 76.6 J -- 27200 39.0 J 1690 41300 2080 79.4 J 325 -- -- ND ug/L 01/30/14 -- -- 300 87.8 J -- 24500 208 J 5330 56300 2110 49.6 J 2570 -- -- ND ug/L 07/08/14 -- -- 300 ND -- 56100 65.3 J 1400 35300 4260 61.3 J 3900 -- -- ND ug/L 03/03/15 22 -- 300 61.4 B -- 30800 38.2 B 1860 91700 3660 ND 6600 -- -- 73.8 ug/L 08/12/15 22 -- 300 ND -- 59100 47.7 J 1630 46200 9550 28.6 J 876 -- -- ND ug/L 02/17/16 22 -- 300 51.8 J -- 21200 100 J 2440 39400 5840 38.4 J 1020 -- -- ND ug/L 07/14/16 22 -- 300 ND -- 27800 48.8 B 907 35500 6010 38.4 B 4620 -- -- 23.3 J ug/L 01/11/17 22 -- 300 61.7 J -- 46000 67.1 J 4860 57000 4240 ND 2090 1590 525 ND ug/L 07/11/17 22 -- 300 29.7 J -- 33200 62.6 J 1160 44100 7870 ND 3940 1290 2590 ND (Dissolved) ug/L 07/11/17 22 -- 300 -- -- -- -- -- -- -- -- -- -- 26.7 J -- ug/L 01/09/18 22 -- 300 54.9 J -- 51600 91.9 J 5770 15500 6680 33.7 J 781 1890 3950 ND ug/L 07/26/18 22 50 -- 25.3 J -- 45400 76.5 549 29500 7800 ND 1000 4750 5410 ND ug/L 01/30/19 22 50 -- 23.3 J -- 14100 41.7 J 643 35200 6900 24.1 J 2010 5730 3140 ND ug/L 07/10/19 22 50 -- 26.7 J 483 56100 66.1 835 24100 12600 55.8 3770 3440 5070 ND ug/L 01/29/20 22 50 -- ND ND 13500 432 538 45700 7690 24.2 J 1010 10500 2620 ND ug/L 07/07/20 22 50 -- 117 162 36100 355 575 33600 8510 80.3 4250 7760 4340 ND Manganese ug/L 01/16/07 -- -- -- 50.6 -- 6160 4.7 J 39.1 2620 361 205 204 -- -- NC 2L = 50 ug/L ug/L 07/02/07 -- -- 50 30.6 J -- 9540 4.2 J 29.5 J 1040 21.3 J 229 244 -- -- -- EPA MCL = 50 ug/L* ug/L 01/30/08 -- -- 50 16.1 J -- 7760 8.0 J 27.3 J 4340 12.6 J 64.8 208 -- -- ND ug/L 07/17/08 -- -- 50 26.7 J -- 25900 14.1 J 35.8 J 1080 10.5 J 11.1 J 94.2 -- -- ND ug/L 01/14/09 -- -- 50 3.5 J -- 10400 10.7 J 24.4 J 3450 718 -- -- -- -- ND ug/L 07/16/09 -- -- 50 15.7 J -- 25200 16.8 J 76.9 2480 340 -- -- -- -- ND ug/L 01/04/10 -- -- 50 5.12 J -- 13200 21.9 J 36.3 J 3200 707 2.50 J 77.3 -- -- ND ug/L 07/01/10 -- -- 50 8.43 B -- 15300 21.0 J 42.3 J 3420 1850 6.80 B 85.1 -- -- 2.75 ug/L 01/13/11 -- -- 50 6.90 J -- 20100 20.9 J 17.7 J 3290 2490 9.13 J 73.4 -- -- ND ug/L 07/21/11 -- -- 50 6.10 J -- 19600 19.0 J 54.5 3020 2470 3.62 J 551 -- -- -- ug/L 01/16/12 -- -- 50 5.41 J -- 8520 22.4 J 37.6 J 3280 2440 ND 73.1 -- -- ND ug/L 07/09/12 -- -- 50 3.82 J -- 17900 12.1 J 54.2 1890 3530 1.79 J 1160 -- -- ND ug/L 01/14/13 -- -- 50 4.14 B -- 14300 24.2 J 92.2 2280 2720 4.32 B 183 -- -- 1.28 ug/L 07/09/13 -- -- 50 18.1 J -- 19000 16.9 J 62.6 2290 1790 6.22 J 1840 -- -- ND ug/L 01/30/14 -- -- 50 7.75 J -- 16800 36.8 J 37.8 J 3120 2580 2.73 J 2090 -- -- ND ug/L 07/08/14 -- -- 50 5.04 B -- 24900 16.4 J 59.0 2060 2640 8.60 B 2010 -- -- 1.97 ug/L 03/03/15 1.1 -- 50 6.00 J -- 17300 16.1 J 20.4 J 2480 3120 ND 2480 -- -- ND ug/L 08/12/15 1.1 -- 50 4.21 B -- 20800 14.3 J 76.4 2410 3030 2.08 B 1670 -- -- 1.18 ug/L 02/17/16 1.1 -- 50 7.36 J -- 16800 15.8 J 53.1 2240 3530 2.26 B 2040 -- -- 1.19 ug/L 07/14/16 1.1 -- 50 5.24 B -- 18100 12.9 J 51.5 1970 3490 4.93 B 2650 -- -- 1.82 J ug/L 01/11/17 1.1 -- 50 5.30 J -- 24800 17.6 J 34.6 J 2860 4090 1.44 J 4820 2980 1150 ND ug/L 07/11/17 1.1 -- 50 7.16 J -- 18200 14.6 J 44.6 J 1940 3760 1.58 J 8540 2930 1670 ND (Dissolved) ug/L 07/11/17 1.1 -- 50 -- -- -- -- -- -- -- -- 7840 2960 1570 ND ug/L 01/09/18 1.1 -- 50 6.80 B -- 21400 26.0 J 97.6 (92.2) 1800 5450 3.06 B 19300 (16600) 3620 3340 2.57 J (Dissolved) ug/L 01/09/18 1.1 -- 50 -- -- -- -- -- -- -- -- 16800 -- -- ND Verification Event ug/L 03/16/18 1.1 -- 50 -- -- -- -- -- -- -- -- 19600 -- -- ND (Dissolved) ug/L 03/16/18 1.1 -- 50 -- -- -- -- -- -- -- -- 20200 -- -- ND ug/L 07/26/18 1.5 10 -- 5.21 B -- 15400 13.2 B 74.6 1800 4950 ND 19500 4740 3590 2.80 J ug/L 01/30/19 1.5 10 -- 5.24 J -- 9540 15.1 40.2 1540 4840 ND 20900 5980 1910 ND ug/L 07/10/19 1.5 10 -- 7.49 B 28.3 19000 15.6 B 148 1170 6400 3.07 B 21400 5010 3430 3.63 J ug/L 01/29/20 1.5 10 -- 5.44 J 25.1 11700 25.5 37.5 2000 6620 2.17 J 26200 7910 1850 ND ug/L 07/07/20 1.5 10 -- 6.30 J 32.7 14200 59.5 94.3 1050 5740 6.26 J 20800 6630 2850 ND Acetone ug/L 01/09/06 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 6000 ug/L ug/L 07/12/06 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND No EPA MCL ug/L 01/16/07 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- 1.2 ug/L 01/30/08 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- 7.1 ug/L 07/01/10 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 100 ND -- ND ND ND ND 5.6 J ND ND -- -- ND ug/L 01/14/13 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 100 ND -- 9.8 J ND ND 1.3 J 2.1 J ND 1.9 J -- -- ND ug/L 03/03/15 1.2 -- 100 ND -- 4.4 J ND ND 2.5 J ND ND ND -- -- ND ug/L 08/12/15 1.2 -- 100 ND -- ND ND ND ND 11 J ND ND -- -- ND ug/L 02/17/16 1.2 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 10 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 10 -- 100 ND -- ND ND ND ND ND ND ND ND ND 11 J ug/L 07/11/17 10 -- 100 ND -- ND ND ND ND 16 J ND ND ND ND ND ug/L 01/09/18 10 -- 100 ND -- ND ND ND ND ND ND ND ND ND 17 J ug/L 07/26/18 10 20 -- ND -- 11 J ND ND ND 14 J ND ND ND ND ND ug/L 01/30/19 10 20 -- ND -- ND ND ND ND 17 J ND ND ND ND ND ug/L 07/10/19 10 20 -- ND -- 36 ND ND ND 13 J ND ND ND ND ND ug/L 01/29/20 10 20 -- ND -- 11 J ND ND ND 16 J ND ND 12 J ND ND ug/L 07/07/20 10 20 -- ND -- 28 ND ND ND 12 J ND ND ND ND ND Benzene ug/L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 1 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 5 ug/L ug/L 01/16/07 -- -- 3 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.78 J ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- 0.72 J ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- 0.57 J ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- 1.6 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.15 -- 1 ND -- 0.79 J ND ND ND ND ND 0.49 J -- -- ND ug/L 08/12/15 0.15 -- 1 ND -- 2.0 ND ND ND ND ND ND -- -- ND Verification Event ug/L 09/28/15 0.15 -- 1 -- -- 2.6 -- -- -- -- -- -- -- -- ND ug/L 02/17/16 0.15 -- 1 ND -- 0.98 J ND ND ND 0.63 J ND ND -- -- ND ug/L 07/14/16 0.15 -- 1 ND -- 1.7 ND ND ND 1.0 ND 0.44 J -- -- ND Verification Event ug/L 08/04/16 0.15 -- 1 -- -- 1.0 -- -- -- 1.1 -- -- -- -- ND ug/L 01/11/17 0.15 -- 1 ND -- ND ND ND ND 0.61 J ND ND ND ND ND ug/L 07/11/17 0.15 -- 1 ND -- ND ND ND ND 1.7 ND ND ND ND ND ug/L 01/09/18 0.15 -- 1 ND -- ND ND ND ND 2.1 ND 0.63 J ND 1.4 ND Verification Event ug/L 03/16/18 0.15 -- 1 -- -- -- -- -- -- -- -- -- -- ND ND ug/L 07/26/18 0.15 1 -- ND -- 2.8 ND ND ND 1.7 ND 1.2 ND 1.2 ND Verification Event ug/L 09/10/18 0.15 1 -- -- -- 2.2 -- -- -- -- -- ND -- ND ND ug/L 01/30/19 0.15 1 -- ND -- 1.1 ND ND ND 3.6 ND 0.86 J 0.40 J 0.72 J ND ug/L 07/10/19 0.15 1 -- ND -- 3.3 ND ND ND 4.5 ND ND ND 1.8 ND Verification Event ug/L 10/04/19 0.15 1 -- ND -- -- -- -- -- -- -- -- -- 2.7 ND ug/L 01/29/20 0.15 1 -- ND -- 0.57 J ND ND ND 2.2 ND 0.57 J 0.85 J ND ND ug/L 07/07/20 0.15 1 -- ND -- 2.1 ND ND ND 3.0 ND 0.97 J 0.45 J 1.7 ND .,> GOLDEN 4 of 7 September 2020 TABLE 4 20137881.102 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Parameter Units Date MDL MRL Reporting Blanks Limit 1,2-Dichloroethane ug/L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 0.4 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 5 ug/L ug/L 01/16/07 -- -- 3 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.57 J ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.21 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.21 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.21 1 -- ND -- ND ND ND ND ND ND ND ND ND ND cis-1,2-Dichloroethene ug/L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 70 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 70 ug/L ug/L 01/16/07 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 5 ND -- 0.87 1 ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 5 ND -- 0.83 1 ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 5 ND -- 0.69 1 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.15 -- 5 ND -- ND ND ND ND ND ND 0.47 1 -- -- ND ug/L 08/12/15 0.15 -- 5 ND -- 0.57 1 ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.15 -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.15 -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.15 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.15 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.15 -- 5 ND -- ND ND ND ND ND ND 0.66 1 ND ND ND ug/L 07/26/18 0.15 1 -- ND -- ND ND ND ND ND ND 1.0 ND ND ND ug/L 01/30/19 0.15 1 -- ND -- ND ND ND ND ND ND 0.81 1 ND ND ND ug/L 07/10/19 0.15 1 -- ND -- ND ND ND ND ND ND 0.72 1 ND ND ND ug/L 01/29/20 0.15 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.15 1 -- ND -- ND ND ND ND ND ND ND ND ND ND Ethylbenzene ug/L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 600 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 700 ug/L ug/L 01/16/07 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.13 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.13 -- 1 ND -- 0.46 1 ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.13 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.13 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.13 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.13 1 -- ND -- ND ND ND ND ND ND ND ND ND ND Methylene chloride ug/L 01/09/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 5 ug/L ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 5 ug/L ug/L 01/16/07 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- 0.51 1 ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.92 1 ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- 1.1 ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- 0.41 1 ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.23 -- 1 ND -- 0.48 1 ND ND ND ND ND 0.84 1 -- -- ND ug/L 08/12/15 0.23 -- 1 ND -- ND ND ND ND ND ND 0.96 1 -- -- ND ug/L 02/17/16 0.23 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.23 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.23 -- 1 ND -- ND ND ND ND ND ND ND ND ND 0.57 1 ug/L 07/11/17 0.23 -- 1 ND -- ND ND ND ND ND ND 1.4 1 ND ND ND ug/L 01/09/18 0.23 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.23 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.23 1 -- ND -- ND ND ND ND ND ND 1.2 ND ND ND ug/L 07/10/19 0.23 1 -- ND -- ND ND ND ND ND ND 1.2 B ND ND 0.53 1 ug/L 01/29/20 0.23 1 -- ND -- ND ND ND ND ND ND 0.95 1 ND ND ND ug/L 07/07/20 0.23 1 -- ND -- ND ND ND ND ND ND 1.0 ND ND ND 2-Butanone ug/L 01/09/06 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 4000 ug/L ug/L 07/12/06 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND No EPA MCL ug/L 01/16/07 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 100 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 -- -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 1.3 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 1.3 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 1.3 -- 100 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 1.3 -- 100 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 1.3 -- 100 ND -- 80 1 ND ND ND ND ND ND ND ND ND ug/L 07/26/18 1.3 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 1.3 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 1.3 5 -- ND -- 2.1 1 ND ND ND ND ND ND ND ND ND ug/L 01/29/20 1.3 5 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 1.3 5 -- ND -- ND ND ND ND ND ND ND ND ND ND .,> GOLDEN 5 of 7 September 2020 TABLE 4 20137881.102 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Parameter Units Date MDL MRL Reporting Blanks Limit Toluene ug/L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 600 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 1000 ug/L ug/L 01/16/07 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- 0.63 ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- 0.43 1 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.14 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.14 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.14 -- 1 ND -- ND ND ND ND ND ND 1.2 -- -- ND ug/L 07/14/16 0.14 -- 1 ND -- ND ND ND ND ND ND 2.0 -- -- ND ug/L 01/11/17 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.14 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.14 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.14 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.14 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.14 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.14 1 -- ND -- 0.50 1 ND ND ND ND ND ND ND ND ND Vinyl chloride ug/L 01/09/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 0.03 ug/L ug/L 07/12/06 -- -- 10 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 2 ug/L ug/L 01/16/07 -- -- 5.5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/02/07 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 1 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 1 ND -- 0.78 J ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 1 ND -- 0.93 J ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 1 ND -- 0.90 J ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 1 ND -- 1.40 ND ND ND ND ND ND -- -- ND ug/L 03/03/15 0.32 -- 1 ND -- 0.58 J ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.32 -- 1 ND -- 0.95 J ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.32 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.32 -- 1 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/11/17 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.32 -- 1 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/10/19 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/29/20 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/07/20 0.32 1 -- ND -- ND ND ND ND ND ND ND ND ND ND Xylenes (Total) ug/L 01/09/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND NC 2L = 500 ug/L ug/L 07/12/06 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND EPA MCL = 10,000 ug/L ug/L 07/02/07 -- -- 4 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/08 -- -- 10 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/17/08 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/09 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 07/16/09 -- -- 5 ND -- ND ND ND ND ND -- -- -- -- ND ug/L 01/04/10 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/01/10 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/13/11 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/21/11 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/16/12 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/12 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/14/13 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/09/13 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/08/14 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 03/03/15 -- -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 08/12/15 0.45 -- 5 ND -- ND ND ND ND ND ND ND -- -- ND ug/L 02/17/16 0.45 -- 5 ND -- ND ND ND ND 0.71 1 ND ND -- -- ND ug/L 07/14/16 0.45 -- 5 ND -- ND ND ND ND 0.50 1 ND ND -- -- ND ug/L 01/11/17 0.45 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/11/17 0.45 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/09/18 0.45 -- 5 ND -- ND ND ND ND ND ND ND ND ND ND ug/L 07/26/18 0.45 3 -- ND -- ND ND ND ND ND ND ND ND ND ND ug/L 01/30/19 0.45 3 -- ND -- ND ND ND ND 0.51 1 ND ND ND ND ND ug/L 07/10/19 0.45 3 -- ND -- ND ND ND ND ND ND ND ND 0.64 1 ND ug/L 01/29/20 0.45 3 -- ND -- ND ND ND ND ND ND ND 0.46 1 ND ND ug/L 07/07/20 0.45 3 -- ND -- 1.2 1 ND ND ND ND ND ND ND 0.47 1 ND 1,4-Dioxane ug/L 07/26/18 1.2 2 -- ND -- 67 ND 1.5 1 14 210 ND 25 16 180 ND NC 2L = 3 ug/L ug/L 01/30/19 1.2 2 -- ND -- 29 ND 1.3 1 3.4 290 ND 35 20 97 ND No EPA MCL ug/L 07/10/19 1.2 2 -- ND -- 92 ND 1.4 1 4.8 260 1.3 1 28 13 140 ND ug/L 01/29/20 0.8 2 -- ND -- 33 ND 0.93 1 9.8 220 1.8 1 32 25 45 ND ug/L 07/07/20 0.8 2 -- ND -- 71 ND 1.8 1 8.9 240 3.5 34 25 110 ND Tetrahydrofuran ug/L 01/13/11 -- -- -- ND -- ND ND ND ND 6.2 ND ND -- -- ND No Standard ug/L 07/21/11 -- -- -- ND -- ND ND ND ND 21 ND ND -- -- ND No EPA MCL ug/L 01/16/12 -- -- -- ND -- ND ND ND ND 61 ND ND -- -- ND ug/L 07/09/12 -- -- -- ND -- ND ND ND ND 30 ND ND -- -- ND ug/L 01/14/13 -- -- -- ND -- 0.95 1 ND ND ND 22 ND ND -- -- ND ug/L 07/09/13 -- -- -- ND -- ND ND ND ND ND ND ND -- -- ND ug/L 01/30/14 -- -- -- ND -- ND ND ND ND 8.1 ND ND -- -- ND ug/L 07/08/14 -- -- -- ND -- 3.3 ND ND ND 14 ND ND -- -- ND ug/L 03/03/15 0.80 -- -- ND -- 1.4 ND ND ND 6.3 ND ND -- -- ND ug/L 08/12/15 0.80 -- -- 2.8 -- ND 1.5 ND ND 25 ND ND -- -- ND ug/L 02/17/16 0.80 -- -- ND -- ND ND ND ND ND ND ND -- -- ND ug/L 07/14/16 0.80 -- -- ND -- ND ND ND ND 5.6 ND ND -- -- ND ug/L 01/11/17 0.80 -- -- ND -- ND ND ND ND 15 ND ND ND 36 ND ug/L 07/11/17 0.80 -- -- ND -- ND ND ND ND 21 ND 2.2 1 ND 18 ND ug/L 01/09/18 0.53 -- -- ND -- 12 ND ND ND 50 ND ND 0.65 1 85 ND ug/L 07/26/18 0.53 1 -- ND -- 0.77 1 ND ND ND 66 ND ND ND 130 ND ug/L 01/30/19 0.53 1 -- ND -- ND ND ND ND 99 ND ND ND 31 4.4 ug/L 07/10/19 0.53 1 -- ND -- 38 ND ND ND 98 ND 6.8 1.4 47 ND ug/L 01/29/20 0.53 1 -- ND -- ND ND ND ND 81 ND ND ND 15 ND ug/L 07/07/20 0.53 1 -- ND -- ND ND ND ND 89 ND ND ND 57 ND .,> GOLDEN 6 of 7 September 2020 TABLE 4 20137881.102 Summary of Detected Constituents in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample SWS Upgradient Downgradient Parameter MDL MRL Reporting Blanks Units Date Limit MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Chloride mg/L 01/16/07 -- -- -- 11.0 -- 13.0 4.0 7.0 19.0 16.0 4.0 11.0 -- -- -- NC 2L = 250 mg/L mg/L 07/02/07 -- -- -- 5.2 -- 6.9 2.8 B 7.0 9.0 9.3 3.3 6.7 -- -- 0.57 EPA MCL = 250 ug/L* mg/L 01/30/08 -- -- -- 6.5 -- 10 3.3 J 10 16 15 3.3 J 9.4 -- -- ND mg/L 07/17/08 -- -- -- 8.0 -- 14 4.3 B 9.8 21 14 3.9 B 8.4 -- -- 1.3 mg/L 01/14/09 -- -- -- 7.2 -- 6.9 1.8 J 5.0 12 14 -- -- -- -- ND mg/L 07/16/09 -- -- -- 8.4 -- 12 5.3 12 17 15 -- -- -- -- ND mg/L 01/04/10 -- -- -- 9.7 -- 8.0 6.4 7.4 10 20 5.0 7.0 -- -- ND mg/L 07/01/10 -- -- -- 9.9 -- 10 5.5 7.7 10 40 5.1 7.2 -- -- ND mg/L 01/13/11 -- -- -- 10 -- 24 5.8 12 11 41 4.9 J 7.7 -- -- ND mg/L 07/21/11 -- -- -- 12 -- 30 3.8 B 13 14 47 4.5 B 8.2 -- -- 1.5 mg/L 01/16/12 -- -- -- 13 -- 21 4.1 6.9 7 63 4.7 8.8 -- -- ND mg/L 07/09/12 -- -- -- 14 -- 24 4.0 B 11 14 66 4.8 B 11 -- -- 1.4 mg/L 01/14/13 -- -- -- 14 -- 61 5.3 B 12 5.8 B 55 4.9 B 12 -- -- 1.4 J mg/L 07/09/13 -- -- -- 15 -- 61 4.2 J 7.5 7.1 46 5.3 14 -- -- ND mg/L 01/30/14 -- -- -- 14 -- 48 6.6 7.2 3.5 55 5.3 19 -- -- ND mg/L 07/08/14 -- -- -- 16 -- 120 6.3 8.6 9.1 63 5.5 28 -- -- ND mg/L 03/03/15 2.2 -- -- 16 -- 130 6.5 5.7 3.2 J 71 5.6 42 -- -- ND mg/L 08/12/15 2.2 -- -- 21 -- 150 5.3 14 11 76 6.2 32 -- -- ND J mg/L 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/L 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/L 01/09/18 2.2 -- -- 21 -- 210 9.4 23 17 160 6.2 96 45 140 ND mg/L 07/26/18 2.2 5 -- 17 -- 200 6.1 16 13 180 6.5 110 46 140 ND mg/L 01/30/19 2.2 5 -- 18 -- 73 20 10 3.8 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/L 01/29/20 2.2 5 -- 20 -- 94 10 12 5.4 200 12 140 81 52 ND mg/L 07/07/20 2.2 5 -- 17 -- 180 12 15 6.4 220 15 130 73 130 ND Total Dissolved Solids mg/L 01/16/07 -- -- -- 214 -- 180 68 82 280 212 236 236 -- -- -- NC 2L = 500 mg/L mg/L 07/02/07 -- -- -- 190 -- 180 74 82 200 260 150 200 -- -- ND EPA MCL = 500 ug/L* mg/L 01/30/08 -- -- -- 210 -- 200 100 110 410 310 180 240 -- -- ND mg/L 07/17/08 -- -- -- 220 -- 270 54 90 280 220 140 190 -- -- ND mg/L 01/14/09 -- -- -- 240 -- 190 100 100 320 240 -- -- -- -- ND mg/L 07/16/09 -- -- -- 240 -- 360 110 120 260 280 -- -- -- -- ND mg/L 01/04/10 -- -- -- 280 -- 230 86 82 260 310 160 210 -- -- ND J mg/L 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/L 07/21/11 -- -- -- 260 -- 370 48 120 320 520 190 230 -- -- ND mg/L 01/16/12 -- -- -- 300 -- 300 98 94 280 560 180 250 -- -- ND mg/L 07/09/12 -- -- -- 330 -- 550 96 140 270 760 230 340 -- -- ND mg/L 01/14/13 -- -- -- 350 -- 580 120 130 290 670 200 370 -- -- ND mg/L 07/09/13 -- -- -- 350 -- 530 64 70 230 600 190 360 -- -- ND mg/L 01/30/14 -- -- -- 350 -- 500 88 130 180 660 210 400 -- -- ND mg/L 07/08/14 -- -- -- 360 -- 910 66 110 230 750 210 460 -- -- ND mg/L 03/03/15 10 -- -- 390 -- 770 56 56 120 860 210 510 -- -- ND mg/L 08/12/15 50 -- -- 370 -- 1200 ND 130 200 860 210 360 -- -- ND mg/L 02/17/16 50 -- -- 430 -- 810 110 100 150 1100 240 450 -- -- ND mg/L 07/14/16 50 -- -- 390 -- 940 72 90 220 1100 250 470 -- -- ND mg/L 01/11/17 50 -- -- 430 -- 1600 86 120 210 1300 280 540 240 550 ND mg/L 07/11/17 50 -- -- 390 -- 1100 ND 110 130 1300 290 700 190 620 ND mg/L 01/09/18 50 -- -- 430 -- 1700 ND 86 190 1500 250 810 280 1100 ND mg/L 07/26/18 50 50 -- 380 -- 1700 54 120 190 1500 260 880 400 1000 ND mg/L 01/30/19 50 50 -- 440 -- 740 120 650 110 1600 300 910 490 570 ND mg/L 07/10/19 50 50 -- 410 -- 1800 82 76 160 2100 300 910 330 1200 ND mg/L 01/29/20 50 50 -- 420 -- 1000 96 80 160 2100 340 1100 750 540 ND mg/L 07/07/20 50 50 -- 420 -- 1700 110 130 140 2300 390 1000 730 1200 ND Sulfate as SO4 mg/L 01/16/07 -- -- -- 48.4 -- 44.3 7.03 B 33.4 41.7 51.2 24.0 13.6 -- -- 2.25 NC 2L = 250 mg/L mg/L 07/02/07 -- -- 250 39 -- 25 6.4 19 25 69 11 10 -- -- ND EPA MCL = 250 ug/L* mg/L 01/30/08 -- -- 250 35 J -- 24 J 5.9 J 23 J 79 J 26 J 10 J 9.2 J -- -- ND mg/L 07/17/08 -- -- 250 62 J -- 41 J 8.9 J 23 J 39 J 73 J 14 J 14 J -- -- ND mg/L 01/14/09 -- -- 250 66 J -- 54 J 11 J 21 J 24 J 73 J -- -- -- -- ND mg/L 07/16/09 -- -- 250 74 J -- 36 J 8.3 J 33 J 33 J 100 -- -- -- -- ND mg/L 01/04/10 -- -- 250 95 J -- 37 J 11 J 26 J 25 J 110 J 12 J 19 J -- -- ND mg/L 07/01/10 -- -- 250 93 J -- 41 J 9.6 J 27 J 22 J 150 J 13 J 23 J -- -- ND mg/L 01/13/11 -- -- 250 99 J -- 42 J 10 J 44 J 13 J 140 J 14 J 36 J -- -- ND mg/L 07/21/11 -- -- 250 110 J -- 66 J 8.3 J 40 J 25 J 140 J 15 J 46 J -- -- ND mg/L 01/16/12 -- -- 250 100 J -- 55 J 9.1 J 23 J 13 J 130 J 18 J 50 J -- -- ND mg/L 07/09/12 -- -- 250 110 J -- 26 J 7.9 J 40 J 31 J 190 J 20 J 56 J -- -- ND mg/L 01/14/13 -- -- 250 120 J -- 55 J 13 J 58 J 9.6 J 190 J 23 J 62 J -- -- ND mg/L 07/09/13 -- -- 250 140 J -- 55 J 8.6 J 37 J 17 J 180 J 24 J 71 J -- -- 1.6 mg/L 01/30/14 -- -- 250 160 J -- 68 J 15 J 52 J 6.4 J 200 J 28 J 67 J -- -- ND mg/L 07/08/14 -- -- 250 150 J -- 45 J 11 J 49 J 26 J 210 J 28 J 87 J -- -- ND mg/L 03/03/15 2.9 -- 250 170 J -- 57 J 11 J 31 J 13 J 270 35 J 92 J -- -- ND mg/L 08/12/15 2.9 -- 250 160 J -- 26 J 8.6 J 71 J 19 J 210 J 35 J 54 J -- -- ND mg/L 02/17/16 2.9 -- 250 200 J -- 34 J 15 J 31 J 14 J 200 J 38 J 54 J -- -- ND mg/L 07/14/16 2.9 -- 250 210 J -- 73 J 10 J 56 J 28 J 240 J 45 J 53 J -- -- ND mg/L 01/11/17 2.9 -- 250 210 J -- 27 J 9.6 J 43 J 8.3 J 220 J 43 J 51 J 56 J 120 J ND mg/L 07/11/17 2.9 -- 250 220 -- 22 J 9.9 J 39 J 11 J 150 J 46 J 54 J 34 J 99 J ND mg/L 01/09/18 2.9 -- 250 220 J -- 23 J 8.6 J 41 J 36 J 130 J 47 J 60 J 71 J 150 J ND mg/L 07/26/18 2.9 5 -- 210 -- 13 8.9 48 29 130 46 58 36 98 ND mg/L 01/30/19 2.9 5 -- 230 -- 42 12 19 9.6 82 45 61 49 41 ND mg/L 07/10/19 2.9 5 -- 220 -- 20 12 31 30 62 42 61 39 75 ND 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 Total Alkalinity mg/L 01/16/07 -- -- -- 39 -- 53 5.0 25 17 160 100 170 -- -- No NC 2L Standard mg/L 07/02/07 -- -- -- 20 -- 100 46 12 110 100 99 160 -- -- ND No EPA MCL mg/L 01/30/08 -- -- -- -- -- -- -- -- 310 -- -- -- -- -- ND mg/L 01/30/08 -- -- -- 17 -- 81 32 ND -- 89 100 170 -- -- ND mg/L 07/17/08 -- -- -- 22 B -- 210 30 19 B 180 68 100 150 -- -- 4.8 mg/L 01/14/09 -- -- -- 25 -- 88 32 5.6 J 180 42 -- -- -- -- ND mg/L 07/16/09 -- -- -- 17 -- 150 34 ND 160 59 -- -- -- -- ND mg/L 01/04/10 -- -- -- 43 -- 160 51 24 100 76 110 160 -- -- ND mg/L 07/01/10 -- -- -- 29 -- 200 31 13 J 170 85 110 130 -- -- ND mg/L 01/13/11 -- -- -- 23 -- 230 29 ND 210 140 110 130 -- -- ND mg/L 07/21/11 -- -- -- 25 -- 170 30 12 J 220 140 110 110 -- -- ND mg/L 01/16/12 -- -- -- 26 -- 160 28 ND 190 170 110 120 -- -- ND mg/L 07/09/12 -- -- -- 23 -- 280 31 13 130 200 120 150 -- -- ND mg/L 01/14/13 -- -- -- 20 -- 280 32 ND 190 190 130 170 -- -- ND mg/L 07/09/13 -- -- -- 29 -- 260 32 ND 100 160 130 190 -- -- ND mg/L 01/30/14 -- -- -- 23 -- 250 32 ND 140 210 140 200 -- -- ND mg/L 07/08/14 -- -- -- 29 -- 500 41 22 110 270 150 230 -- -- ND mg/L 03/03/15 14 -- -- 30 -- 440 33 ND 110 310 150 270 -- -- ND mg/L 08/12/15 14 -- -- 20 -- 730 36 17 180 330 150 220 -- -- ND mg/L 02/17/16 14 -- -- 23 -- 480 39 ND 950 510 160 250 -- -- ND mg/L 07/14/16 70 -- -- 23 -- 550 33 15 130 560 170 290 -- -- ND mg/L 01/11/17 14 -- -- 27 -- 990 33 ND 190 640 170 320 78 200 ND mg/L 07/11/17 14 -- -- 22 -- 680 26 17 100 790 180 380 98 300 ND mg/L 01/09/18 14 -- -- 24 -- 1200 32 ND 120 940 180 510 100 590 ND mg/L 07/26/18 14 15 -- ND -- 1100 32 23 120 920 180 500 190 590 ND mg/L 01/30/19 14 15 -- ND -- 480 47 ND 110 1100 180 550 280 350 ND mg/L 07/10/19 14 15 -- ND -- 1100 36 ND 88 1400 200 480 170 740 ND mg/L 01/29/20 14 15 -- ND -- 610 33 14 J 72 1500 240 610 370 330 ND mg/L 07/07/20 14 15 -- ND -- 1300 30 ND 86 1600 270 600 450 760 ND Notes: 1. MW = groundwater monitoring well 2. ug/L = micrograms per liter 3. mg/L = milligrams per liter 4. J = Prior to the 07/18 event, J flags are estimated values below the SWS Reporting limit. Beginning with the 07/18 event, J flags are estimated values between MDL and PQL. 5. B = blank -qualified data 6. ND = not detected at or above the stated reporting limit 7. Standards = NC 2L Groundwater Standards or North Carolina Solid Waste Section Groundwater Protection Standards 8. --- = no data available 9. Bolded = Concentrations above the current NC 2L Groundwater Standards or Solid Waste Section Groundwater Protection Standards (SWS GPS) have been bolded. 10. Shaded = Concentrations above the current EPA Maximum Contaminate Level (MCL) have been shaded. 11. Blanks = Field, trip, and laboratory blanks. 12. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/18/07 13. # = EPA Action Level 14. * = EPA Secondary MCL 15. Data prior to 01/09/06 provided by Joyce Engineering, Inc. 16. P-3 added as an additional upgradient well for Appendix 1 metals sampling as of 07/10/19 17. Data in parentheses are re-analsyes results. 18. The following dilutions were noted for the July 2020 event: antimony and thallium all points (2x); 1,4-dioxane MW-6 (10x), AMW-2 (5x); TDS MW-2 and MW-6 (2x); sulfate MW-1, MW-2, MW-6 (4x) and MW-8 and AMW-2 (2x); chloride MW-2 and MW-6 (4x) and MW-8 and AMW-2 (2x); and alkalinity MW-2 and MW-6 (10x), MW-7S (3x), MW-8, AMW-1 and AMW-2 (5x). 4> GOLDEN 7 of 7 September 2020 TABLE 5 20137881.102 Summary of Field Parameters in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upgradient Downgradient Parameter Units Date MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 pH (Field) S.U. 07/06/05 6.47 -- 5.44 6.00 5.85 5.88 6.42 -- -- -- S. U. 01 /09/06 5.96 -- 5.76 6.37 6.02 6.27 6.10 -- -- -- -- S.U. 07/12/06 6.20 -- 5.64 6.10 5.70 6.38 6.85 -- -- -- -- S.U. 01/16/07 7.35 -- 6.82 6.88 6.61 6.22 6.59 6.74 7.20 -- -- S.U. 07/02/07 7.47 -- 7.24 7.14 6.77 7.13 7.40 7.30 7.13 -- S. U. 01 /30/08 5.78 -- 5.51 5.92 5.34 6.29 6.25 6.58 7.35 -- -- S.U. 07/17/08 5.75 -- 5.75 5.70 5.86 6.05 5.91 6.47 7.23 -- -- S.U. 01/14/09 5.77 -- 5.64 5.60 5.11 6.28 5.45 -- -- S. U. 07/16/09 5.64 -- 5.85 5.59 5.30 6.04 5.96 -- -- S. U. 01/04/10 5.49 -- 5.59 5.36 4.73 6.08 6.05 6.30 6.96 -- -- S.U. 07/01/10 5.53 -- 5.72 5.37 5.22 5.96 5.49 6.34 6.48 -- -- S.U. 01/13/11 5.54 -- 5.80 5.57 5.24 5.96 6.28 6.45 6.52 -- -- S.U. 07/21/11 5.27 -- 5.50 5.10 5.02 6.02 5.84 6.22 6.00 -- -- S.U. 01/16/12 5.59 -- 5.76 5.59 5.11 6.26 5.79 6.43 6.36 -- -- S.U. 07/09/12 5.92 -- 6.12 5.53 5.57 6.20 6.45 6.60 6.30 -- -- S.U. 01/14/13 5.47 -- 6.00 5.78 5.45 6.11 6.41 6.44 6.29 -- -- S.U. 07/09/13 5.02 -- 5.40 4.83 4.60 5.97 5.67 5.56 5.70 -- -- S.U. 01/30/14 5.58 -- 6.04 5.75 5.48 6.35 6.42 6.44 6.30 -- -- S.U. 07/08/14 5.63 -- 6.32 5.86 5.72 6.42 6.60 6.62 6.27 -- -- S.U. 03/03/15 5.49 -- 6.23 5.88 5.50 6.39 6.61 6.50 6.18 -- -- S.U. 08/12/15 5.66 -- 6.08 5.37 5.54 5.98 6.54 6.03 6.10 -- -- (Verification Event) S.U. 09/28/15 -- -- 6.31 -- -- -- -- -- -- S. U. 02/17/16 5.25 -- 6.32 5.22 5.06 6.07 6.25 6.16 6.38 -- -- S.U. 07/14/16 5.19 -- 5.87 5.17 5.06 5.81 6.15 5.97 5.89 -- -- (Verification Event) S.U. 08/04/16 -- -- 5.97 -- -- -- 6.16 -- -- -- -- S. U. 01 /01 /17 4.95 -- 6.15 4.92 4.84 5.67 6.47 5.77 6.03 6.00 5.88 S.U. 07/11/17 5.30 -- 6.14 5.11 4.96 5.91 6.32 5.94 6.00 6.06 5.90 S.U. 01/09/18 5.56 -- 6.41 5.67 5.49 5.98 6.59 6.41 6.37 6.08 6.19 (Verification Event) S.U. 03/16/18 -- -- -- -- -- -- -- -- 6.22 -- 6.13 S.U. 07/26/18 5.45 -- 6.27 5.56 5.79 6.11 6.49 6.34 6.11 6.09 6.07 (Verification Event) S.U. 09/10/18 -- -- 6.33 -- -- -- -- -- 5.98 -- 6.08 S.U. 01/30/19 5.63 -- 6.51 5.82 5.54 6.41 6.50 6.49 6.18 6.32 6.26 S.U. 07/10/19 5.41 5.40 6.34 5.49 5.28 6.32 6.48 6.23 6.10 6.16 6.20 (Verification Event) S.U. 10/04/19 -- -- -- -- -- -- -- -- -- -- 6.12 S.U. 01/29/20 5.55 5.51 6.75 5.67 5.73 6.24 6.73 6.38 6.34 6.45 6.37 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 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 Temperature (Field) °C 07/06/05 20.80 -- 20.50 16.20 19.30 19.00 19.60 -- -- -- -- °C 01 /09/06 17.86 -- 14.23 15.62 13.82 16.72 14.35 -- -- -- -- °C 07/12/06 23.85 -- 24.21 20.80 21.80 20.59 20.91 -- -- -- -- °C 01/16/07 15.80 -- 12.10 13.80 18.80 12.50 12.00 12.20 12.50 -- -- °C 07/02/07 19.65 -- 18.72 17.72 18.23 18.54 17.27 16.27 18.76 -- -- °C 01 /30/08 16.01 -- 12.32 15.12 13.19 14.84 13.01 14.34 12.35 -- -- °C 07/17/08 18.58 -- 17.34 17.47 17.02 19.68 20.10 17.33 17.16 -- -- °C 01/14/09 15.08 -- 10.34 13.80 12.34 14.24 11.14 -- -- -- -- °C 07/16/09 18.48 -- 16.95 17.80 16.62 18.38 19.07 -- -- -- -- °C 01/04/10 12.50 -- 10.57 12.82 10.59 14.03 11.46 12.37 10.40 -- -- °C 07/01/10 18.65 -- 16.14 15.30 16.12 17.55 19.93 16.11 18.97 -- -- °C 01/13/11 12.86 -- 11.04 13.45 11.39 13.50 10.63 12.51 9.74 -- -- °C 07/21/11 19.57 -- 17.91 17.25 18.02 18.06 19.68 17.72 21.63 -- -- °C 01/16/12 15.62 -- 11.97 14.60 13.16 14.77 12.66 14.01 11.33 -- -- °C 07/09/12 19.26 -- 17.83 17.60 18.80 18.57 23.63 17.25 20.90 -- -- °C 01/14/13 16.81 -- 13.86 15.34 13.68 15.68 14.04 15.12 14.27 -- -- °C 07/09/13 18.75 -- 17.51 17.16 17.14 17.54 18.92 17.16 20.77 -- -- °C 01/30/14 14.7 -- 10.5 12.7 11.1 13.9 10.2 13.1 10.6 -- -- °C 07/08/14 19.0 -- 15.8 15.2 16.1 17.6 18.9 18.8 18.9 -- -- °C 03/03/15 14.2 -- 9.88 12.5 10.3 12.0 9.46 13.0 9.43 -- -- °C 08/12/15 18.6 -- 17.5 15.1 16.3 17.6 19.3 15.8 17.1 -- -- Verification Event °C 09/28/15 -- -- 17.41 -- -- -- -- -- -- -- -- °C 02/17/16 14.70 -- 11.9 13.8 11.4 14.4 11.6 14.8 12.8 -- -- °C 07/14/16 19.0 -- 16.8 17.0 17.2 18.2 21.3 17.1 21.8 -- -- Verification Event °C 08/04/16 -- -- 18.4 -- -- -- 19.3 -- -- -- -- °C 01/01/17 16.0 -- 14.2 13.9 13.2 15.2 14.4 13.6 13.2 14.1 11.5 °C 07/11/17 19.8 -- 18.3 16.8 17.6 17.7 21.1 16.7 23.1 17.0 19.0 °C 01/09/18 14.4 -- 13.1 13.8 13.6 16.3 13.7 15.6 14.2 12.9 11.0 Verification Event °C 03/16/18 -- -- -- -- -- -- -- -- 13.0 -- 11.0 °C 07/26/18 19.6 -- 17.6 17.7 17.2 22.3 22.5 19.6 19.2 17.1 19.0 Verification Event oC 09/10/18 -- -- 18.9 -- -- -- -- -- 19.1 -- 19.8 °C 01/30/19 14.0 -- 11.0 13.1 11.7 12.6 10.7 12.4 12.6 12.2 9.2 °C 07/10/19 19.6 19.4 18.3 18.2 17.9 18.9 20.4 17.4 18.8 16.5 18.9 Verification Event °C 10/04/19 -- -- -- -- -- -- -- -- -- -- 20.0 °C 01/29/20 13.6 14.8 12.5 13.2 11.6 13.5 12.2 13.7 11.8 12.1 10.2 °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 4 GOLDER 1of2 September 2020 TABLE 5 20137881.102 Summary of Field Parameters in Groundwater Waste Industries of High Point Construction and Demolition Landfill, Permit No. 41-16 Guilford County, North Carolina Reporting Sample Upgradient Downgradient Parameter Units Date MW-1 P-3 MW-2 MW-3 MW-4S MW-5 MW-6 MW-7S MW-8 AMW-1 AMW-2 Turbidity (Field) NTU 07/06/05 92.1 -- 126 241 65.2 71.4 71.4 -- -- -- -- NTU 01/09/06 165 -- 293 48.5 55.2 28.4 130 -- -- -- -- NTU 07/12/06 130 -- 89.2 49.2 28 64 387 -- -- -- -- NTU 01/16/07 372 -- 62.5 73.3 188 497 294 >1000 130 -- -- NTU 07/02/07 222 -- 521 37 146 61.2 405 >1000 66.3 -- -- NTU 01/30/08 13.7 -- 15.5 3.08 44.6 56.1 6.81 64.1 58.4 -- -- NTU 07/17/08 4.48 -- 0.97 1.11 18.3 45.7 2.41 7 5.21 -- -- NTU 01/14/09 3.02 -- 38.7 1.64 24.7 71.3 2.95 -- -- -- -- NTU 07/16/09 2.38 -- 2.65 4.1 27.5 18.4 2.31 -- -- -- -- NTU 01/04/10 2.50 -- 13.0 3.64 21.0 13.2 3.11 3.48 20.5 -- -- NTU 07/01/10 1.58 -- 25.9 1.87 5.66 3.51 2.53 3.99 1.83 -- -- NTU 01/13/11 0.43 -- 12.6 1.19 7.57 11.6 1.24 0.73 0.52 -- -- NTU 07/21/11 1.33 -- 25.0 1.28 11.89 6.92 8.59 1.31 0.50 -- -- NTU 01/16/12 1.10 -- 24.8 2.13 14.6 44.4 1.70 1.45 0.51 -- -- NTU 07/09/12 3.25 -- 27.6 3.99 98.5 5.23 20.2 4.81 3.95 -- -- NTU 01/14/13 4.05 -- 9.87 10.5 14.8 4.20 4.98 6.70 2.09 -- -- NTU 07/09/13 2.14 -- 11.7 1.36 16.1 4.00 2.30 3.31 1.20 -- -- NTU 01/30/14 2.71 -- 81.0 8.48 62.8 51.3 1.03 2.71 27.5 -- -- NTU 07/08/14 3.40 -- 19.1 3.11 12.9 6.77 3.13 3.44 7.84 -- -- NTU 03/03/15 0.63 -- 26.1 1.93 21.3 363 9.97 0.83 0.80 -- -- NTU 08/12/15 0.47 -- 88.3 0.87 14.6 5.57 4.83 0.82 1.86 -- -- Verification Event NTU 09/28/15 -- -- 11.9 -- -- -- -- -- -- -- -- NTU 02/17/16 1.58 -- 25.0 3.52 16.9 49.1 3.53 1.54 5.37 -- -- NTU 07/14/16 0.96 -- 4.31 1.53 10.3 13.6 1.96 0.95 1.02 -- -- Verification Event NTU 08/04/16 -- -- 10.2 -- -- -- 3.98 -- -- -- -- NTU 01/01/17 2.35 -- 1.95 2.52 7.95 16.3 16.9 0.32 13.3 7.81 9.06 NTU 07/11/17 0.92 -- 8.98 1.92 9.16 12.0 2.16 0.67 4.04 1.79 5.57 NTU 01/09/18 0.77 -- 0.76 0.90 31.40 4.65 3.68 0.57 2.90 4.37 1.96 Verification Event NTU 03/16/18 -- -- -- -- -- -- -- -- 2.92 -- 6.84 NTU 07/26/18 0.68 -- 8.40 4.07 8.13 6.34 4.13 1.16 5.82 7.32 3.13 Verification Event NTU 09/10/18 -- -- 2.56 -- -- -- -- -- 3.68 -- 0.78 NTU 01/30/19 2.01 -- 9.97 3.83 9.10 9.89 9.95 2.39 9.90 7.55 4.17 NTU 07/10/19 3.85 9.37 3.40 3.05 9.72 9.96 4.63 3.86 0.75 3.54 4.11 Verification Event NTU 10/04/19 -- -- -- -- -- -- -- -- -- -- 0.87 NTU 01/29/20 0.85 0.41 6.17 6.16 7.09 8.93 9.45 1.92 1.68 9.79 9.59 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 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 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 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. 4 GOLDER 2of2 September 2020 20137881.102 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 Parameter Reporting Sample MDL MRL SWS Reporting Upstream Downstream Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Antimony ug/L 01/16/07 -- -- 6 ND ND ND ND ND Human Health Standard = 640 ug/L ug/L 07/02/07 -- -- 6 -- ND -- ND ND ug/L 01/29/08 -- -- 6 ND ND ND ND ND ug/L 07/17/08 -- -- 6 -- ND -- ND ND ug/L 02/27/09 -- -- 6 ND ND ND ND ND ug/L 07/16/09 -- -- 6 dry ND dry ND ND ug/L 01/04/10 -- -- 6 0.0870 J ND ND ND ND ug/L 07/01/10 -- -- 6 dry dry dry ND ND ug/L 01/13/11 -- -- 6 ND ND ND ND ND ug/L 07/21/11 -- -- 6 dry ND -- ND ND ug/L 01/16/12 -- -- 6 ND ND ND ND ND ug/L 07/09/12 -- -- 6 dry ND dry ND 0.461 J ug/L 01/14/13 -- -- 6 ND ND ND ND ND ug/L 07/09/13 -- -- 6 ND 0.371 J ND 0.436 J ND ug/L 01/30/14 -- -- 6 ND ND ND 0.308 J ND ug/L 07/08/14 -- -- 6 dry ND dry ND ND ug/L 03/03/15 0.22 -- 6 ND 0.255 J ND ND ND ug/L 08/12/15 0.22 -- 6 dry ND dry ND ND ug/L 02/17/16 0.22 -- 6 ND ND ND 8.13 J ND ug/L 07/14/16 0.22 -- 6 ND ND ND ND ND ug/L 01/11/17 0.37 -- 6 ND ND 0.553 J 0.413 J ND ug/L 07/11/17 0.37 -- 6 dry dry ND ND ND ug/L 01/09/18 0.25 -- 6 ND ND ND ND ND ug/L 07/26/18 1.85 5 -- dry ND dry ND ND ug/L 01/30/19 0.74 2 -- ND ND ND ND ND ug/L 07/10/19 0.74 2 -- ND ND dry ND ND ug/L 01/30/20 0.74 2 -- ND ND ND ND ND ug/L 07/07/20 0.74 2 -- dry ND dry ND ND Arsenic ug/L 10/08/03 -- -- 10 ND ND ND ND ND Freshwater Acute SW Standard = 340 ug/L ug/L 01/23/04 -- -- 10 ND ND ND ND ND Freshwater Chronic SW Standard = 150 ug/L ug/L 07/08/04 -- -- 10 ND ND ND ND ND ug/L 01/25/05 -- -- 10 ND ND ND ND ND ug/L 07/06/05 -- -- 10 dry ND dry ND ND ug/L 01/09/06 -- -- 10 ND ND ND ND ND ug/L 07/12/06 -- -- 10 ND ND ND ND ND ug/L 01/16/07 -- -- 10 ND 3.1 B 3.8 B ND 2.4 J ug/L 07/02/07 -- -- 10 dry ND dry ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND 2.1 J ug/L 07/17/08 -- -- 10 dry ND dry ND ND ug/L 02/27/09 -- -- 10 3.5 J ND ND ND ND ug/L 07/16/09 -- -- 10 dry 2.82 J dry ND ND ug/L 01/04/10 -- -- 10 ND ND ND ND ND ug/L 07/01/10 -- -- 10 dry dry dry ND 3.54 J ug/L 01/13/11 -- -- 10 3.38 J 3.72 J 3.51 J 3.70 J ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry 2.86 B dry 3.18 B 3.13 J ug/L 01/14/13 -- -- 10 ND ND ND ND ND ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 5.4 -- 10 ND ND ND ND ND ug/L 08/12/15 6.8 -- 10 dry ND dry ND ND ug/L 02/17/16 6.8 -- 10 ND ND ND ND ND ug/L 07/14/16 6.8 -- 10 6.91 J ND ND ND ND ug/L 01/11/17 6.8 -- 10 ND ND ND ND ND ug/L 07/11/17 6.8 -- 10 dry dry ND ND ND ug/L 01/09/18 6.8 -- 10 ND ND ND ND ND ug/L 07/26/18 7.6 10 -- dry ND dry ND ND ug/L 01/30/19 7.6 10 -- ND ND ND ND ND ug/L 07/10/19 7.6 10 -- ND ND dry ND ND ug/L 01/30/20 7.6 10 -- ND ND ND ND ND ug/L 07/07/20 7.6 10 -- dry ND dry ND ND Barium ug/L 10/08/03 -- -- 500 ND ND ND ND ND Human Health Std. = 20,000 ug/L ug/L 01/23/04 -- -- 500 ND ND ND ND ND ug/L 07/08/04 -- -- 500 ND ND ND ND ND ug/L 01/25/05 -- -- 500 ND ND ND ND ND ug/L 07/06/05 -- -- 500 dry ND dry ND ND ug/L 01/09/06 -- -- 500 ND ND ND ND ND ug/L 07/12/06 -- -- 500 ND ND ND ND ND ug/L 01/16/07 -- -- 100 38.7 J 47.6 J 39.5 J 46.0 J 0.90 J ug/L 07/02/07 -- -- 100 dry 62.6 J dry 51.7 J 1.2 J ug/L 01/29/08 -- -- 100 49.8 J 74.1 J 62.2 J 71.2 J 0.3 J ug/L 07/17/08 -- -- 100 dry 67.3 J dry 71.9 J ND ug/L 02/27/09 -- -- 100 36.0 J 39.1 J 52.7 J 46.7 J ND ug/L 07/16/09 -- -- 100 dry 94.5 J dry 84.4 J ND ug/L 01/04/10 -- -- 100 34.0 J 66.2 J 38.0 J 50.3 J 0.552 J ug/L 07/01/10 -- -- 100 dry dry dry 71.0 J ND ug/L 01/13/11 -- -- 100 47.9 J 71.4 J 49.1 J 54.3 J ND ug/L 07/21/11 -- -- 100 dry 87.5 J -- 69.4 J ND ug/L 01/16/12 -- -- 100 37.2 J 37.3 J 54.8 J 47.4 J ND ug/L 07/09/12 -- -- 100 dry 72.4 J dry 55.2 J ND ug/L 01/14/13 -- -- 100 54.6 J 71.2 J 56.4 J 90.0 J 1.46 J ug/L 07/09/13 -- -- 100 73.5 J 58.3 J 63.2 J 46.3 J 1.37 J ug/L 01/30/14 -- -- 100 41.0 J 62.3 J 45.1 J 52.1 J 1.08 J ug/L 07/08/14 -- -- 100 dry 74.4 J dry 61.0 J 1.13 J ug/L 03/03/15 1.0 -- 100 47.0 J 82.6 J 45.8 J 60.9 J 3.04 J ug/L 08/12/15 1.0 -- 100 dry 163 dry 167 2.33 J ug/L 02/17/16 1.0 -- 100 39.3 J 77.0 J 40.9 J 815 ND ug/L 07/14/16 1.0 -- 100 79.0 J 57.3 J 120 76.0 J 1.51 J ug/L 01/11/17 1.0 -- 100 71.4 J 56.2 J 91.0 J 85.3 J ND ug/L 07/11/17 1.0 -- 100 dry dry 80.6 J 58.7 J 1.39 J ug/L 01/09/18 1.0 -- 100 106 101 85.0 J 65.9 J ND ug/L 07/26/18 1.1 10 -- dry 70.9 dry 72.1 ND ug/L 01/30/19 1.1 10 -- 36.5 52.0 39.7 41.8 ND ug/L 07/10/19 1.1 10 -- 77.5 73.1 dry 52.7 2.91 J ug/L 01/30/20 1.1 10 -- 41.3 57.4 44.0 56.4 ND ug/L 07/07/20 1.1 10 -- dry 61.1 dry 40.7 ND ,,,> GOLDER 1of6 September 2020 20137881.102 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 Parameter Reporting Sample MDL MRL SWS Reporting Upstream Downstream Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Beryllium ug/L 01/16/07 -- -- 1 ND ND ND ND ND Freshwater Acute SW Standard = 65 ug/L ug/L 07/02/07 -- -- 1 -- ND -- ND ND Freshwater Chronic SW Standard = 6.5 ug/L ug/L 01/29/08 -- -- 1 ND ND ND ND ND ug/L 07/17/08 -- -- 1 -- ND -- ND ND ug/L 02/27/09 -- -- 1 ND ND ND ND ND ug/L 07/16/09 -- -- 1 dry 0.220 J dry 0.178 J ND ug/L 01/04/10 -- -- 1 ND ND ND ND ND ug/L 07/01/10 -- -- 1 dry dry dry ND ND ug/L 01/13/11 -- -- 1 ND ND ND ND ND ug/L 07/21/11 -- -- 1 dry ND -- ND ND ug/L 01/16/12 -- -- 1 ND ND ND ND ND ug/L 07/09/12 -- -- 1 dry ND dry ND ND ug/L 01/14/13 -- -- 1 ND ND ND ND ND ug/L 07/09/13 -- -- 1 ND ND ND ND ND ug/L 01/30/14 -- -- 1 ND ND ND ND ND ug/L 07/08/14 -- -- 1 dry ND dry ND ND ug/L 03/03/15 0.10 -- 1 ND ND ND ND ND ug/L 08/12/15 0.10 -- 1 dry ND dry ND ND ug/L 02/17/16 0.10 -- 1 ND ND ND 1.58 J ND ug/L 07/14/16 0.10 -- 1 ND ND ND ND ND ug/L 01/11/17 0.10 -- 1 ND ND ND ND ND ug/L 07/11/17 0.13 -- 1 dry dry ND ND ND ug/L 01/09/18 0.13 -- 1 ND ND ND ND ND ug/L 07/26/18 0.16 1 -- dry ND dry ND ND ug/L 01/30/19 0.16 1 -- ND ND ND ND ND ug/L 07/10/19 0.16 1 -- ND ND dry ND ND ug/L 01/30/20 0.16 1 -- ND ND ND ND ND ug/L 07/07/20 0.16 1 -- dry ND dry ND ND Cadmium ug/L 10/08/03 -- -- 1 ND ND ND ND ND Freshwater Acute SW Standard = 0.82 ug/L ug/L 01/23/04 -- -- 1 ND ND ND ND ND Freshwater Chronic SW Standard = 0.15 ug/L ug/L 07/08/04 -- -- 1 ND ND ND ND ND ug/L 01/25/05 -- -- 1 ND ND ND ND ND ug/L 07/06/05 -- -- 1 dry ND dry ND ND ug/L 01/09/06 -- -- 1 ND ND ND ND ND ug/L 07/12/06 -- -- 1 ND ND ND ND ND ug/L 01/16/07 -- -- 1 ND ND ND ND ND ug/L 07/02/07 -- -- 1 dry ND dry ND ND ug/L 01/29/08 -- -- 1 ND ND ND ND ND ug/L 07/17/08 -- -- 1 dry 0.40 J dry ND ND ug/L 02/27/09 -- -- 1 ND ND ND ND ND ug/L 07/16/09 -- -- 1 dry 0.134 B dry 0.442 B 1.19 ug/L 01/04/10 -- -- 1 0.317 J 0.230 J 0.830 J 0.143 J ND ug/L 07/01/10 -- -- 1 dry dry dry ND ND ug/L 01/13/11 -- -- 1 ND ND ND ND ND ug/L 07/21/11 -- -- 1 dry ND -- ND ND ug/L 01/16/12 -- -- 1 ND ND ND ND ND ug/L 07/09/12 -- -- 1 dry ND dry ND ND ug/L 01/14/13 -- -- 1 ND ND ND ND ND ug/L 07/09/13 -- -- 1 ND ND ND ND ND ug/L 01/30/14 -- -- 1 ND ND ND ND ND ug/L 07/08/14 -- -- 1 dry ND dry ND ND ug/L 03/03/15 0.36 -- 1 ND ND ND ND ND ug/L 08/12/15 0.36 -- 1 dry ND dry ND ND ug/L 02/17/16 0.36 -- 1 ND ND ND ND ND ug/L 07/14/16 0.36 -- 1 ND ND ND ND ND ug/L 01/11/17 0.36 -- 1 ND ND ND ND ND ug/L 07/11/17 0.36 -- 1 dry dry ND ND ND ug/L 01/09/18 0.36 -- 1 ND ND ND ND ND ug/L 07/26/18 0.36 1 -- dry ND dry ND ND ug/L 01/30/19 0.36 1 -- ND ND ND ND ND ug/L 07/10/19 0.36 1 -- ND ND dry ND ND ug/L 01/30/20 0.36 1 -- ND ND ND ND ND ug/L 07/07/20 0.36 1 -- dry ND dry ND ND Chromium ug/L 10/08/03 -- -- 10 ND ND ND ND ND Freshwater Acute SW Standard = 180 ug/L ug/L 01/23/04 -- -- 10 ND ND ND ND ND Freshwater Chronic SW Standard = 24 ug/L ug/L 07/08/04 -- -- 10 ND ND ND ND ND ug/L 01/25/05 -- -- 10 ND ND ND ND ND ug/L 07/06/05 -- -- 10 -- ND -- ND ND ug/L 01/09/06 -- -- 10 ND ND ND ND ND ug/L 07/12/06 -- -- 10 ND ND ND ND ND ug/L 01/16/07 -- -- 10 ND ND ND ND ND ug/L 07/02/07 -- -- 10 -- ND -- ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 -- ND -- ND ND ug/L 02/27/09 -- -- 10 ND ND ND ND ND ug/L 07/16/09 -- -- 10 dry 8.45 J dry 5.87 J ND ug/L 01/04/10 -- -- 10 ND 2.49 J ND ND ND ug/L 07/01/10 -- -- 10 dry dry dry 1.37 B 1.80 J ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND 2.35 J 1.42 J ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 1.69 B 2.92 B ND 6.53 B 1.40 J ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 1.4 -- 10 ND 6.99 B ND 4.03 B 1.66 J ug/L 08/12/15 1.4 -- 10 dry 58.2 dry 43.7 ND ug/L 02/17/16 1.4 -- 10 ND 13.8 ND 343 ND ug/L 07/14/16 1.4 -- 10 ND ND 7.29 J ND ND ug/L 01/11/17 1.4 -- 10 ND ND 3.08 J 2.12 J ND ug/L 07/11/17 1.4 -- 10 dry dry ND ND ND ug/L 01/09/18 1.4 -- 10 ND ND ND ND ND ug/L 07/26/18 1.4 10 -- dry 1.49 J dry 1.52 J ND ug/L 01/30/19 1.4 10 -- ND ND ND ND ND ug/L 07/10/19 1.4 10 -- ND ND dry ND ND ug/L 01/30/20 1.4 10 -- ND ND ND ND ND ug/L 07/07/20 1.4 10 -- dry ND dry ND ND ,.t*> G 0 L D E R 2of6 September 2020 20137881.102 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 Parameter Reporting Sample MDL MRL SWS Reporting Upstream Downstream Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Cobalt ug/L 01/16/07 -- -- 10 ND ND ND ND ND Human Health Std. = 4.0 ug/L ug/L 07/02/07 -- -- 10 -- ND -- ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 -- ND -- ND ND ug/L 02/27/09 -- -- 10 2.0 J ND ND ND ND ug/L 07/16/09 -- -- 10 dry 1.96 J dry 1.69 J ND ug/L 01/04/10 -- -- 10 0.961 J 2.050 J 0.97 J 1.65 J ND ug/L 07/01/10 -- -- 10 dry dry dry 1.18 J ND ug/L 01/13/11 -- -- 10 1.15 J ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 1.59 J 1.77 J ND 4.73 J ND ug/L 07/09/13 -- -- 10 1.50 J ND ND ND ND ug/L 01/30/14 -- -- 10 ND 1.58 J 1.27 J 1.91 J ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 1.1 -- 10 ND 2.65 J ND 1.35 J ND ug/L 08/12/15 1.1 -- 10 dry 20.2 dry 17.8 ND ug/L 02/17/16 1.1 -- 10 1.18 J 6.32 J 1.36 J 168 ND ug/L 07/14/16 1.1 -- 10 1.34 J ND 2.94 J ND ND ug/L 01/11/17 1.1 -- 10 ND ND 1.95 J 1.82 J ND ug/L 07/11/17 1.1 -- 10 dry dry ND ND ND ug/L 01/09/18 1.1 -- 10 ND ND ND ND ND ug/L 07/26/18 1.4 10 -- dry ND dry ND ND ug/L 01/30/19 1.4 10 -- ND ND ND ND ND ug/L 07/10/19 1.4 10 -- 2.65 J ND dry ND ND ug/L 01/30/20 1.4 10 -- ND 1.63 J ND 1.88 J ND ug/L 07/07/20 1.4 10 -- dry ND dry ND ND Copper ug/L 01/16/07 -- -- 10 ND 1.50 J 1.00 J ND ND Freshwater Acute SW Standard = 3.6 ug/L ug/L 07/02/07 -- -- 10 dry ND dry ND ND Freshwater Chronic SW Standard = 2.7 ug/L ug/L 01/29/08 -- -- 10 1.00 J 1.20 J ND 1.10 J ND ug/L 07/17/08 -- -- 10 dry ND dry 1.90 J ND ug/L 02/27/09 -- -- 10 1.90 J ND 1.80 J ND ND ug/L 07/16/09 -- -- 10 dry 7.67 B dry 5.37 B 6.42 J ug/L 01/04/10 -- -- 10 2.39 J 4.12 J ND 2.06 J ND ug/L 07/01/10 -- -- 10 dry dry dry ND ND ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry 1.69 B -- 1.62 B 1.65 J ug/L 01/16/12 -- -- 10 ND ND 2.89 J ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 5.01 J 4.24 J ND 13.4 ND ug/L 07/09/13 -- -- 10 1.63 J 2.44 J ND 2.28 J ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry 1.63 J ND ug/L 03/03/15 1.6 -- 10 3.91 J 10.4 3.79 J 8.05 J ND ug/L 08/12/15 1.6 -- 10 dry 52.4 dry 43.3 ND ug/L 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 ND ND 7.98 B 2.96 B 3.50 J ug/L 01/11/17 1.6 -- 10 6.07 B 4.16 B 7.82 B 7.32 B 6.33 J ug/L 07/11/17 1.6 -- 10 dry dry 2.29 J 1.73 J ND ug/L 01/09/18 1.6 -- 10 ND ND ND ND ND ug/L 07/26/18 1.6 10 -- dry 2.50 B dry 1.64 B 2.02 J ug/L 01/30/19 1.6 10 -- 3.48 J 2.94 J ND 2.59 J ND 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 ND ug/L 07/07/20 1.6 10 -- dry ND dry ND ND Lead ug/L 10/08/03 -- -- 10 ND ND ND ND ND Freshwater Acute SW Standard = 14 ug/L ug/L 01/23/04 -- -- 10 ND ND ND ND ND Freshwater Chronic SW Standard = 0.54 ug/L ug/L 07/08/04 -- -- 10 ND ND ND ND ND ug/L 01/25/05 -- -- 10 ND ND ND ND ND ug/L 07/06/05 -- -- 10 dry ND dry ND ND ug/L 01/09/06 -- -- 10 ND ND ND ND ND ug/L 07/12/06 -- -- 10 ND ND ND ND ND ug/L 01/16/07 -- -- 10 4.6 J ND 2.6 J 3.6 J ND ug/L 07/02/07 -- -- 10 dry ND dry ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 dry ND dry ND ND ug/L 02/27/09 -- -- 10 ND ND ND ND ND ug/L 07/16/09 -- -- 10 dry 4.30 J dry 4.68 J ND ug/L 01/04/10 -- -- 10 1.68 B 4.41 B ND ND 1.24 J ug/L 07/01/10 -- -- 10 dry dry dry 2.56 J ND ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- 2.32 J ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 ND ND ND 3.58 J ND ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 2.1 -- 10 ND ND ND ND ND ug/L 08/12/15 3.1 -- 10 dry 15.7 dry 14.8 ND ug/L 02/17/16 3.1 -- 10 ND ND ND 32.5 J ND ug/L 07/14/16 3.1 -- 10 ND ND ND ND ND ug/L 01/11/17 3.1 -- 10 ND ND ND ND ND ug/L 07/11/17 3.1 -- 10 dry dry ND ND ND ug/L 01/09/18 3.1 -- 10 ND ND ND ND ND ug/L 07/26/18 3.1 10 -- dry ND dry ND ND ug/L 01/30/19 3.1 10 -- ND ND ND ND ND ug/L 07/10/19 3.1 10 -- ND ND dry ND ND ug/L 01/30/20 3.1 10 -- ND ND ND ND ND ug/L 07/07/20 3.1 10 -- dry ND dry ND ND ,,,> GOLDER 3of6 September 2020 20137881.102 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 Parameter Reporting Sample MDL MRL SWS Reporting Upstream Downstream Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Nickel ug/L 01/16/07 -- -- 50 2.9 1 ND ND ND ND Freshwater Acute Standard = 140 ug/L ug/L 07/02/07 -- -- 50 dry ND dry 1.7 1 ND Freshwater Chronic Standard = 16 ug/L ug/L 01/29/08 -- -- 50 4.8 1 ND ND ND ND ug/L 07/17/08 -- -- 50 dry ND dry ND ND ug/L 02/27/09 -- -- 50 2.4 1 ND ND ND ND ug/L 07/16/09 -- -- 50 dry 3.92 B dry 3.42 B 3.80 1 ug/L 01/04/10 -- -- 50 ND ND ND ND ND ug/L 07/01/10 -- -- 50 dry dry dry ND ND ug/L 01/13/11 -- -- 50 ND ND ND ND ND ug/L 07/21/11 -- -- 50 dry ND -- ND ND ug/L 01/16/12 -- -- 50 ND ND ND ND ND ug/L 07/09/12 -- -- 50 dry ND dry ND ND ug/L 01/14/13 -- -- 50 2.29 1 ND ND 2.84 1 ND ug/L 07/09/13 -- -- 50 1.91 1 ND ND ND ND ug/L 01/30/14 -- -- 50 ND ND ND ND ND ug/L 07/08/14 -- -- 50 dry ND dry ND ND ug/L 03/03/15 1.8 -- 50 ND 3.67 1 ND ND ND ug/L 08/12/15 1.8 -- 50 dry 29.9 1 dry 25.3 1 ND ug/L 02/17/16 1.8 -- 50 ND 8.79 1 ND 230 ND ug/L 07/14/16 2.2 -- 50 3.23 B ND 5.87 B 2.24 B 11.9 1 ug/L 01/11/17 2.2 -- 50 2.60 1 ND 3.47 1 3.28 1 ND ug/L 07/11/17 2.2 -- 50 dry dry ND ND ND ug/L 01/09/18 2.2 -- 50 ND ND ND 2.34 1 ND ug/L 07/26/18 2.2 10 -- dry 2.25 1 dry 2.83 1 ND ug/L 01/30/19 2.2 10 -- ND ND ND ND ND ug/L 07/10/19 2.2 10 -- ND ND dry ND ND ug/L 01/30/20 2.2 10 -- 2.26 1 ND ND ND ND ug/L 07/07/20 2.2 10 -- dry ND dry ND ND Selenium ug/L 10/08/03 -- -- 20 ND ND ND ND ND Freshwater Acute SW Standard = 5 ug/L ug/L 01/23/04 -- -- 20 ND ND ND ND ND Freshwater Chronic SW Standard = 5 ug/L ug/L 07/08/04 -- -- 20 ND ND ND ND ND ug/L 01/25/05 -- -- 20 ND ND ND ND ND ug/L 07/06/05 -- -- 20 -- ND -- ND ND ug/L 01/09/06 -- -- 20 ND ND ND ND ND ug/L 07/12/06 -- -- 20 ND ND ND ND ND ug/L 01/16/07 -- -- 10 ND ND ND ND ND ug/L 07/02/07 -- -- 10 -- ND -- ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 -- ND -- ND ND ug/L 02/27/09 -- -- 10 4.7 1 ND 5.8 J ND ND ug/L 07/16/09 -- -- 10 dry ND dry ND ND ug/L 01/04/10 -- -- 10 ND ND ND ND ND ug/L 07/01/10 -- -- 10 dry dry dry ND ND ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 ND ND ND ND ND ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 5 -- 10 ND ND ND ND ND ug/L 08/12/15 5 -- 10 dry ND dry ND ND ug/L 02/17/16 5 -- 10 ND ND ND ND ND ug/L 07/14/16 6.2 -- 10 ND ND ND ND ND ug/L 01/11/17 6.2 -- 10 ND ND ND ND ND ug/L 07/11/17 6.2 -- 10 dry dry ND ND ND ug/L 01/09/18 6.2 -- 10 ND ND ND ND ND ug/L 07/26/18 6.2 10 -- dry ND dry ND ND ug/L 01/30/19 6.2 10 -- ND ND ND ND ND ug/L 07/10/19 6.2 10 -- ND ND dry ND ND ug/L 01/30/20 6.2 10 -- ND ND ND ND ND ug/L 07/07/20 6.2 10 -- dry ND dry ND ND Silver ug/L 10/08/03 -- -- 10 ND ND ND ND ND Freshwater Acute Standard = 30 ug/L ug/L 01/23/04 -- -- 10 ND ND ND ND ND Freshwater Chronic Standard = 0.06 ug/L ug/L 07/08/04 -- -- 10 ND ND ND ND ND ug/L 01/25/05 -- -- 10 ND ND ND ND ND ug/L 07/06/05 -- -- 10 -- ND -- ND ND ug/L 01/09/06 -- -- 10 ND ND ND ND ND ug/L 07/12/06 -- -- 10 ND ND ND ND ND ug/L 01/16/07 -- -- 10 ND ND ND ND ND ug/L 07/02/07 -- -- 10 -- ND -- ND ND ug/L 01/29/08 -- -- 10 ND ND ND ND ND ug/L 07/17/08 -- -- 10 -- ND -- ND ND ug/L 02/27/09 -- -- 10 ND ND ND ND ND ug/L 07/16/09 -- -- 10 dry ND dry ND ND ug/L 01/04/10 -- -- 10 ND ND ND ND ND ug/L 07/01/10 -- -- 10 dry dry dry ND ND ug/L 01/13/11 -- -- 10 ND ND ND ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 ND ND ND ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 ND ND ND ND ND ug/L 07/09/13 -- -- 10 ND ND ND ND ND ug/L 01/30/14 -- -- 10 ND ND ND ND ND ug/L 07/08/14 -- -- 10 dry ND dry ND ND ug/L 03/03/15 1.9 -- 10 ND ND ND ND ND ug/L 08/12/15 1.9 -- 10 dry ND dry ND 2.59 1 ug/L 02/17/16 1.9 -- 10 ND ND ND ND ND ug/L 07/14/16 1.9 -- 10 ND ND ND ND ND ug/L 01/11/17 1.9 -- 10 ND ND ND ND ND ug/L 07/11/17 1.9 -- 10 dry dry ND ND ND ug/L 01/09/18 1.9 -- 10 1.92 1 2.26 1 1.96 J ND ND ug/L 07/26/18 1.9 10 -- dry ND dry ND ND ug/L 01/30/19 1.9 10 -- ND ND ND ND ND ug/L 07/10/19 1.9 10 -- ND ND dry ND ND ug/L 01/30/20 1.9 10 -- ND ND ND ND ND ug/L 07/07/20 1.9 10 -- dry ND dry ND ND ,.t*> G 0 L D E R 4of6 September 2020 20137881.102 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 Parameter Reporting Sample MDL MRL SWS Reporting Upstream Downstream Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Thallium ug/L 01/16/07 -- -- 5.5 ND ND ND ND ND Human Health Std. = 0.47 ug/L ug/L 07/02/07 -- -- 5.5 dry ND dry ND ND ug/L 01/29/08 -- -- 5.5 ND ND 0.041 J ND ND ug/L 07/17/08 -- -- 5.5 dry ND dry ND ND ug/L 02/27/09 -- -- 5.5 ND ND ND ND ND ug/L 07/16/09 -- -- 5.5 dry ND dry ND ND ug/L 01/04/10 -- -- 5.5 ND ND ND ND ND ug/L 07/01/10 -- -- 5.5 dry dry dry ND ND ug/L 01/13/11 -- -- 5.5 ND ND ND ND ND ug/L 07/21/11 -- -- 5.5 dry ND -- ND ND ug/L 01/16/12 -- -- 5.5 ND ND ND ND ND ug/L 07/09/12 -- -- 5.5 dry ND dry ND ND ug/L 01/14/13 -- -- 5.5 ND ND ND ND ND ug/L 07/09/13 -- -- 5.5 ND ND ND ND ND ug/L 01/30/14 -- -- 5.5 ND ND ND ND ND ug/L 07/08/14 -- -- 5.5 dry ND dry ND ND ug/L 03/03/15 0.11 -- 5.5 ND ND ND ND ND ug/L 08/12/15 0.11 -- 5.5 dry ND dry ND ND ug/L 02/17/16 0.11 -- 5.5 ND ND ND ND ND ug/L 07/14/16 0.11 -- 5.5 0.270 J 0.313 J 0.323 J 0.315 J ND ug/L 01/11/17 0.11 -- 5.5 ND ND ND ND ND ug/L 07/11/17 0.11 -- 5.5 dry dry 0.117 J ND ND ug/L 01/09/18 0.05 -- 5.5 ND ND ND ND ND ug/L 07/26/18 0.55 5 -- dry ND dry ND ND ug/L 01/30/19 0.22 2 -- ND 0.230 J ND ND ND ug/L 07/10/19 0.22 2 -- ND ND dry ND ND ug/L 01/30/20 0.22 2 -- ND ND ND ND ND ug/L 07/07/20 0.22 2 -- dry ND dry ND ND Vanadium ug/L 01/16/07 -- -- 25 ND ND ND ND ND (No SW Standard) ug/L 07/02/07 -- -- 25 dry 2.1 J dry 2.6 J ND ug/L 01/29/08 -- -- 25 ND ND ND ND ND ug/L 07/17/08 -- -- 25 dry ND dry 1.7 J ND ug/L 02/27/09 -- -- 25 ND ND ND ND ND ug/L 07/16/09 -- -- 25 dry 23.4 J dry 16.1 J ND ug/L 01/04/10 -- -- 25 1.27 J 7.24 J 0.821 J 4.46 J ND ug/L 07/01/10 -- -- 25 dry dry dry 4.33 J ND ug/L 01/13/11 -- -- 25 ND ND ND ND ND ug/L 07/21/11 -- -- 25 dry 2.31 J -- 2.39 J ND ug/L 01/16/12 -- -- 25 1.52 J 1.79 J 7.01 J 4.69 J ND ug/L 07/09/12 -- -- 25 dry ND dry 1.81 J ND ug/L 01/14/13 -- -- 25 3.46 J 6.21 J ND 14.0 J ND ug/L 07/09/13 -- -- 25 ND 2.85 J ND 2.79 J ND ug/L 01/30/14 -- -- 25 ND 1.53 J ND 2.17 J ND ug/L 07/08/14 -- -- 25 dry 2.53 J dry 3.14 J ND ug/L 03/03/15 1.4 -- 25 ND 17.3 J ND 8.48 J ND ug/L 08/12/15 1.4 -- 25 dry 155 dry 118 ND ug/L 02/17/16 1.4 -- 25 ND 35.2 ND 853 ND ug/L 07/14/16 1.4 -- 25 ND ND 19.8 J 4.62 J ND ug/L 01/11/17 1.4 -- 25 ND ND 7.90 J 6.16 J ND ug/L 07/11/17 1.4 -- 25 dry dry ND ND ND ug/L 01/09/18 1.4 -- 25 ND ND ND ND ND ug/L 07/26/18 1.4 10 -- dry 5.34 J dry 4.65 J ND ug/L 01/30/19 1.4 10 -- 1.76 J 1.91 J ND 1.60 J ND ug/L 07/10/19 1.4 10 -- 3.82 J 1.47 J dry 1.52 J ND ug/L 01/30/20 1.4 10 -- 1.49 J 1.51 J ND 1.91 J ND ug/L 07/07/20 1.4 10 -- dry 2.63 J dry 1.75 J ND Zinc ug/L 01/16/07 -- -- 10 27.0 B 9.5 B 27.1 B 4.2 B 10.0 Freshwater Acute SW Standard = 36 ug/L ug/L 07/02/07 -- -- 10 dry ND dry 7.6 J ND Freshwater Chronic SW Standard = 36 ug/L ug/L 01/29/08 -- -- 10 112 10.6 26.9 6.8 B 1.6 J ug/L 07/17/08 -- -- 10 dry 3.8 J dry 4.1 J ND ug/L 02/27/09 -- -- 10 29.8 13.8 7.8 J 13.2 ND ug/L 07/16/09 -- -- 10 dry 14.0 B dry 26.9 B 20.5 ug/L 01/04/10 -- -- 10 24.0 11.9 15.3 7.12 B 2.25 J ug/L 07/01/10 -- -- 10 dry dry dry 8.81 J ND ug/L 01/13/11 -- -- 10 32.6 ND 7.26 J ND ND ug/L 07/21/11 -- -- 10 dry ND -- ND ND ug/L 01/16/12 -- -- 10 23.1 11.2 7.09 J ND ND ug/L 07/09/12 -- -- 10 dry ND dry ND ND ug/L 01/14/13 -- -- 10 31.4 7.14 J 4.15 J 21.7 ND ug/L 07/09/13 -- -- 10 9.74 J ND ND ND ND ug/L 01/30/14 -- -- 10 33.7 9.78 J 17.5 7.46 J ND ug/L 07/08/14 -- -- 10 dry ND dry 3.89 J ND ug/L 03/03/15 3.8 -- 10 36.9 20.7 19.5 10.6 ND ug/L 08/12/15 3.8 -- 10 dry 53.6 dry 55.1 ND ug/L 02/17/16 3.8 -- 10 16.7 20.1 14.4 306 ND ug/L 07/14/16 4.4 -- 10 6.34 J ND 5.57 J ND ND ug/L 01/11/17 4.4 -- 10 40.6 4.95 J 11.8 10.1 ND ug/L 07/11/17 4.4 -- 10 dry dry ND ND ND ug/L 01/09/18 4.4 -- 10 17.8 4.49 J ND ND ND ug/L 07/26/18 4.4 10 -- dry 11.9 dry 8.19 J ND ug/L 01/30/19 4.4 10 -- 17.4 6.13 J 10.1 ND ND ug/L 07/10/19 4.4 10 -- 7.32 J ND dry ND ND ug/L 01/30/20 4.4 10 -- 34.8 6.41 J 12.1 4.85 J ND ug/L 07/07/20 4.4 10 -- dry ND dry ND ND ,,,> GOLDER 5of6 September 2020 20137881.102 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 Parameter Reporting Sample MDL MRL SWS Reporting Upstream Downstream Blanks SW-1 SW-3 SW-2 SW-4 Units Date Limit Acetone ug/L 01/29/08 -- -- 100 ND ND ND ND ND Freshwater Aquatic Std. = 2,000 ug/L ug/L 07/17/08 -- -- 100 -- ND -- ND ND ug/L 02/27/09 -- -- 100 ND ND ND ND ND ug/L 07/16/09 -- -- 100 dry ND dry ND ND ug/L 01/04/10 -- -- 100 ND ND ND ND 7.1 J ug/L 07/01/10 -- -- 100 dry dry dry ND ND ug/L 01/13/11 -- -- 100 ND ND ND ND ND ug/L 07/21/11 -- -- 100 dry ND -- ND ND ug/L 01/16/12 -- -- 100 ND ND ND ND ND ug/L 07/09/12 -- -- 100 dry ND dry ND ND ug/L 01/14/13 -- -- 100 ND ND ND ND ND ug/L 07/09/13 -- -- 100 ND ND ND ND ND ug/L 01/30/14 -- -- 100 ND ND ND ND ND ug/L 07/08/14 -- -- 100 dry ND dry ND ND ug/L 03/03/15 1.2 -- 100 ND 9.6 J ND 3.6 J ND ug/L 08/12/15 1.2 -- 100 dry ND dry ND ND ug/L 02/17/16 1.2 -- 100 ND ND ND ND ND ug/L 07/14/16 10 -- 100 ND ND ND ND ND ug/L 01/11/17 10 -- 100 ND ND ND ND 11 J ug/L 07/11/17 10 -- 100 dry dry ND ND ND ug/L 01/09/18 10 -- 100 ND ND ND ND 17 J ug/L 07/26/18 10 20 -- dry ND dry ND ND ug/L 01/30/19 10 20 -- ND ND ND ND ND ug/L 07/10/19 10 20 -- ND ND dry ND ND ug/L 01/30/20 10 20 -- ND ND ND ND ND ug/L 07/07/20 10 20 -- dry ND dry ND ND 2-Butanone ug/L 01/29/08 -- -- 100 ND ND ND ND ND Human Health Std. = 750,000 ug/L ug/L 07/17/08 -- -- 100 -- ND -- ND ND ug/L 02/27/09 -- -- 100 ND ND ND ND ND ug/L 07/16/09 -- -- 100 dry ND dry ND ND ug/L 01/04/10 -- -- 100 ND ND ND ND ND ug/L 07/01/10 -- -- 100 dry dry dry ND ND ug/L 01/13/11 -- -- 100 ND ND ND ND ND ug/L 07/21/11 -- -- 100 dry ND -- ND ND ug/L 01/16/12 -- -- 100 ND ND ND ND ND ug/L 07/09/12 -- -- 100 dry ND dry ND ND ug/L 01/14/13 -- -- 100 ND ND ND ND ND ug/L 07/09/13 -- -- 100 ND ND ND ND ND ug/L 01/30/14 -- -- 100 ND ND ND ND ND ug/L 07/08/14 -- -- 100 dry ND dry ND ND ug/L 03/03/15 1.3 -- 100 ND 3.9 J ND ND ND ug/L 08/12/15 1.3 -- 100 dry ND dry ND ND ug/L 02/17/16 1.3 -- 100 ND ND ND ND ND ug/L 07/14/16 1.3 -- 100 ND ND ND ND ND ug/L 01/11/17 1.3 -- 100 ND ND ND ND ND ug/L 07/11/17 1.3 -- 100 dry dry ND ND ND ug/L 01/09/18 1.3 -- 100 ND ND ND ND ND ug/L 07/26/18 1.3 5 -- dry ND dry ND ND ug/L 01/30/19 1.3 5 -- ND ND ND ND ND ug/L 07/10/19 1.3 5 -- ND ND dry ND ND ug/L 01/30/20 1.3 5 -- ND ND ND ND ND ug/L 07/07/20 1.3 5 -- dry ND dry ND ND 1,4-Dioxane (Human Health Std. = 0.35 ug/L) ug/L 07/26/18 1.2 2 -- dry 5.4 dry 5.2 ND ug/L 01/30/19 1.2 2 -- ND 4.5 2.1 3.4 ND ug/L 07/10/19 1.2 2 -- ND 8.0 dry 4.3 ND ug/L 01/30/20 1.2 2 -- ND 3.1 1.6 J 4.1 ND ug/L 07/07/20 0.8 2 -- dry 6.6 dry 4.0 ND 1. SW = surface water monitoring point 2. ug/L = micrograms per liter 3. J = Prior to the 07/18 event, J flags are estimated values below the SWS Reporting limit. Beginning with the 07/18 event, J flags are estimated values between MDL and PQL. 4. B = blank -qualified data 5. ND = not detected at or above the stated reporting limit 6. Surface Water Standards for NC Appendix I constituents based on Class C Freshwater Aquatic Life stream classification per 15A NCAC 2B. 7. (AL) = SW Standard is an action level 8. (N) = SW Standard is a narrative standard 9. --- = no data available 10. Bold = concentrations above Human Health or Chronic Surface Water Standard 11. Shaded and Bold = concentration above Acute and Chronic Surface Water Standards 12. Blanks = field, trip and laboratory blanks. 13. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/18/07 14. Data prior to 01/09/06 provided by Joyce Engineering, Inc. 15. The following dilutions were noted for the July 2020 event: Antimony/Thallium 2x all SW points ,.t*> G 0 L D E R 6of6 September 2020 20137881.102 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 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 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 1 07/07/20 1 dry 285 1 dry 227 GOLDER 1of3 September 2020 20137881.102 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 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 1 07/07/20 1 dry 5.94 1 dry 6.80 GOLDER 2of3 September 2020 20137881.102 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 my 01/29/08 165 202 214 182 Potential (Field) my 07/17/08 dry 75 dry 76 my 01/14/09 92.8 113.6 139.6 156.6 my 07/16/09 dry 126.1 dry 45.5 my 01/04/10 82.5 122.6 176.4 5.8 my 07/01/10 dry dry dry 140.9 my 01/13/11 141.9 191.8 224.4 145.8 my 07/21/11 dry 45.8 -- 55.8 my 01/16/12 31.9 137.1 218.6 64.6 my 07/09/12 dry -7.3 dry -4.3 my 01/14/13 -- -- -- -- mv 07/09/13 67.0 33.4 21.1 71.7 my 01/30/14 18.1 31.7 96.4 -3.0 my 07/08/14 dry 43.0 dry 280.2 my 03/03/15 -0.8 131.9 143.9 73.2 my 08/12/15 dry 32.0 dry 47.6 my 02/17/16 140.1 184.6 240.4 288.2 my 07/14/16 -12.1 70.1 92.7 81.1 my 01/11/17 201.6 226.5 250.6 216.9 my 07/11/17 dry 103.0 dry 140.1 my 01/09/18 -- -- -- 234.1 my 07/27/18 dry 9.0 dry 126.3 my 01/30/19 -14.3 54.9 51.7 32.1 my 07/10/19 72.2 122.6 dry 97.5 my 01 /29/20 191.7 210.3 203.4 -95.5 my 07/07/20 dry 105.4 dry 62.7 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 Notes: 1. SW = surface water monitoring point 2. mg/L = milligrams per liter 3. S.U. = Standard Units 4. NTU = Nephelometric Turbidity Units 5. uS = microsiemens 6. -- = no data available 7. Data prior to 01/09/06 provided by Joyce Engineering, Inc. GOLDER 3of3 Drawing M 0 0 :' mals k 40 �MW 3 7-37. I / �1 I ' 7ao SW-2 1 b 1 -� ` D / AL 727.31 C` OS 08L 0 O 2 N O 00 00 M O N N m z 6 N In NI a U 3 0 ,_ Y 0 U L a G _� O \ \ � -- O � _ Carallru 8i6tieil - � � ��'I � i 5 �; + + �/� •: / n ; \ I LJ � � �-- 'LJ `---- A, � _ ,� "� t�='' Yi � '•}'.� "i .�t I�� r�I. } �'12.1 O❑ ❑ I / - f� n1'F. ti - 1W i.•- •''} �•Sy. V FACILITY PROP RTY gOs ` � BOUNDARY 00 LFI LFG- \`__ - - "r r- ' SITE LOCATION AV / s RECLAM �ON 7g0 - I'• J 58.410 $ FACILITY L \ LEGEND SITE LOCATION MAP 796 6 /i A ♦ EXISTING 10' CONTOURS �/ 00 EXISTING 2' CONTOURS AMW- M -2 \ _ _ PROPERTY LINE e09.7 soe. F IM . 11.6 x 809.7 S x 807. • I /�\o STREAM 808.7 847.1 TREELINE / / C 31 �1\ \ \\ ♦ -790 EXISTING ROAD ., PROPOSED OR EXISTING LIMITS OF WASTE 3 _ � � �...� r � ❑ �- - - Sao MW-3 MONITORING WELL LOCATION IDENTIFICATION AND 867.9 �' Ili 7x P-3 I - 737.52 GROUNDWATER ELEVATION f ~ �I �� ♦ I / ❑ SW-1 SURFACE WATER MONITORING POINT \I x 9 III/ x•I \I�I EN NC I 06- P-3 PROPOSED MONITORING WELL LOCATION rb75.6 � ILDINi� 78 ,R 0 �I +784.72 ' ;Li �© BM-1 BENCH MARK \r 7 x 783. 7 7.3 I l i 002 � rS� �TU ,r ,i � � LFG-1 LANDFILL GAS MONITORING WELL LOCATIONS 773.1 Q V C GAS VENT x 6 A .,,�,\ r (x 789. 780789.5 69s 2' \ SB-1 SEDIMENT BASIN wow 723. � � \./ i , \ .,M -J�� x 779.6 � 8 a. 736. 5;+ �, x Viz; 86 x 745.4 1 /' x 9Z 3.5 7 ►, -�� %x o799.4 d �73 J �� SB-3_I�,a W. s0.5 � 56.5 - �� "lift 7 66- ' C 784.6 792.9 x NN 1 I �❑ ` I759.6 77 I ' 0L_ \ �09,/ SW 4 _ x 793.3 8.5 \ - 760 GROUNDWATER SURFACE CONTOURS \ IV GROUNDWATER FLOW SEGMENT USED TO NOTES Lj CALCULATE GRADIENT 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET 1 III \ 79 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET x 790 \ j 3. GROUNDWATER ELEVATIONS MEASURED ON JULY 7, 2020. ° , I 4. GROUNDWATER CONTOURS BASED ON LINEAR INTERPOLATION BETWEEN AND C� \\ EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS AND KNOWN FIELD 8 .3 \\ CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL 1 CONDITIONS. <_ q� \ 6.9 . 5. GROUNDWATER CONTOURS LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE El CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT I � \ I 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. LL 6. THE GROUNDWATER ELEVATIONS FOR MW-41D AND MW-7D WERE NOT USED IN THE I _ i CONSTRUCTION OF GROUNDWATER CONTOURS. i \ 7. DRAWING BASED ON SITE PLAN PLAN PREPARED BY JOYCE ENGINEERING, INC DATED JULY 7, LL J 2004. L I\ 8. UPDATED TOPOGRAPHY PROVIDED FROM AERIAL SURVEY PREPARED BY COOPER AERIAL I SURVEY COMPANY, DATE JANUARY 08, 2019. 781.6 9. HIGH POINT, NORTH CAROLINA 7.5-MINUTE QUADRANGLE MAP OBTAINED FROM US GEOLOGIC F J/ ` 0 200 400 SURVEY, DATE AUGUST 7, 2019. F SCALE FEET / CLIENT PROJECT F WASTE INDUSTRIES OF HIGH POINT, LLC CONSTRUCTION AND DEMOLITION DEBRIS LANDFILL AND o RECLAMATION FACILITY GUILFORD COUNTY, NORTH CAROLINA I /CONSULTANT YYYY-MM-DD 2020-07-10 TITLE PREPARED HAC GROUNDWATER CONTOUR MAP JULY 7) 2020 GO L D E R DESIGN NTT REVIEW DYR PROJECT No. PHASE Rev. FIGURE GOLDER ASSOCIATES NC, INC. APPROVED RPK 20137881 102 0 0 APPENDIX A Groundwater and Surface ftnLui Sampling Logs 44:0 GOLDER DATE: z _ GROUNDWATER SAMPLING LOG Project Name: _ High Point LC` Project /Phase No.: 2.0137881 Well ID: _ I Sampler(s): Darren Cox Well Diameter: * inches Initial Depth to Water: W, -5' s feet Depth to Bottom: •iS feet Water Column Thickness: /2,6p feet Pumping Rate: jc j mLlmin System Volume: _ G-z mL Well Location: _ Equipment: YSI 556IYS1 Pro Plus, Mach 2100Q, Water Level Meter, Bladder Pump, QED Backpack +!- 5% e l o +r- 10% or 0.2 +r- 14 + f Comments (weather conditions, color, type of sample, purge -water management, etc.): Purge: boo Weather: go Signatur Date: ?-7—Zo'z-p QA/QC Sign Off; A&LA=?G -� Date: cv-'? - k*** GOLD1ER DATE: -�` �- c_s GROUNDWATER SAMPLING LOG Project Name: Hi h Paint LF Project /Phase No.: _ 20137881 Well ID: - 3 Sampler(s): Darren Cox , cy . „}C Well Diameter: '2- inches Initial Depth to Water: S 3<4 feet Depth to Bottom: Z'7,-J Zfeet Water Column Thickness: feet Pumping Rate: lqQ mL/min System Volume: �mL Well Location: Equipment: YSI 556/YSI Pro Plus, Hach 2100Q, Water Level Meter,_UL-Kkk,PrnTrp, ` -- ��M -_- Comments (weather conditions, color, type of sample, purge -water management, etc.): Purge: 'i I '{ Weather: Signature: Date: "�- 8-2c+2 QAIQC Sign Off: `-'LLu, AJ1 !(■w., Date: 7- � W ka* GQLDER DATE: ! -� GROUNDWATER SAMPLING LOG Project Name: High Point LE Project /Phase No.: 20137881 Well ID:w.. Sampler(s): Darren Cox Well Diameter: 2 inches Initial Depth to Water: feet Depth to Bottom: feet Water Column Thickness: feet Pumping Fate; 20 mLlmin System Volume: 52_3 �mL Well Location; Equipment: YSI 556NSI Pro Plus, Hach 21000, Water Level Meier, Bladder Pump, -- QED Backpack +1- Q.1 +1- 5% <10 +1- 10% or 0.2 NMI Comments jweather conditions, color, type of sample, purge -water management, etc,); Weather: 0 Signatu Date: — — o-z O QA/QC Sign Off: X A-_i,e r&,,-, Date: 'i- ?- 2.1 zj %040 GOLDE;R DATE: -20'- GROUNDWATER SAMPLING LOG Project Name: High Point LF Project/Phase No.: 20137881 Well ID: Ally _ Sampler(s): Darren Cox Well Diameter: clinches Initial Depth to Water: 1:2 a 6 feet Depth to Bottom: feet Water Column Thickness: 2 feet Pumping Rate: mi.lmin System Volume:j mL Well Location: Equipment: YSI 5561YS1 Pro Plus, Hach 210I]Q, Water Level Meter, Bladder Pump, QED Backpack _ +1- 5% 'C1 o +1. 10% or 0.2 +!- 10 s L�iJ". • Comments (weather conditions, color, type of sample, purge -water mans nt, etc.): Purge: 9- (? L7 Weather: &jjrfJ � `�O Signature: Date ? -- i zo QA/QC Sign Off: f, [date: kJo GOLDS R DATE: �- ?._Z0'ZQ GROUNDWATER SAMPLING LOG Project Name: High Point LF Project (Phase No.: 20137881 Well ID: AM(AJ445 Sampler(s): Darren Cox Well Diameter: S inches Initial Depth to Water: C,k. feet Depth to Bottom: 72, ZOfeet Water Column Thickness: feet Pumping Rate: l_S-O mUmin System Volume: ( q mL Well Location: Equipment: YSI 55&YSI Pro Plus, Hach 21000, Water Level Meter, Bladder Pump, QED Backpack +l- 0.1 +1- 5% <10 +I- 10% or 0.2 +1- 10 ti:eii��sa:,1L� � ■afllllf'� Comments (weather conditions, color, type of sample, purge -water management, etc.): Purae: IOSS' Weather: C_tcSJ 4 Signature: Date; % fta?U QAIQC Sign Off: �. „Date: Q'7ozc? DATE: 7-�-Z.m.o GROUNDWATER SAMPLING LOG GOLDER Project Name: High Point LF Project /Phase No.: 20137881 Well ID: M W - -5` Sampler(s): Darren Cox Well Diameter: 'L, inches Initial Depth to Water: 1% /$ _feet Depth to Bottom: Water Column Thickness: 1,S7 966 feet Pumping Rate: �feet /Jo mL/min System Volume: fp; mL Well Location: Equipment: YSI 556/YSI Pro Pius, Hach 2100Q, Water Level Meter, Bladder Pump, QED Backpack +/- 0.1 +1- 5% Z10 +1- 10% or 0.2 +1- 10 ■1�F�rr & _ ��7 ��'�a FA MI-M, Comments (weather conditions, color, type of sample, purge -water management, etc.): Purge: . 'Ly Weather: 0rt d-- Signature: Date: 7 p-zo QA/QC Sign Off: Q .. Date: 7A3 DATE: 1 'b-Z'-o GROUNDWATER SAMPLING LOG GOLDER Project Name: High Point LF Project (Phase No.: 20137881 Well ID: fd UJ-G Sampler(s): Darren Cox Well Diameter: I inches Initial Depth to Water: feet Depth to Bottom: $,U feet Water Column Thickness: feet Pumping Rate: 110 mUmin System Volume., ' 3A � mL Well Location: Equipment: YSI 5561YS1 Pro Plus, Hach 21000. Water Level Meter, Bladder Pump, QED Backpack +1- 5% <10 +1. 1 d% nr 0.2 +1- 1n Cond.• Comments (weather conditions, color, type of sample, purge -water management, etc.); Purge: 1. 2_4 Weather. (']uQxtaa-- ' c<n t ., Signature: / / ,, -- Date: '� - c. 2 a U QAIQC SiRn"6ff.. l4- AAC Date: +' -' ?•3,{ 16> GOLDER DATE: 2-- -2--zo-c o GROUNDWATER SAMPLING LOG Project Name: _High Paint LF Project /Phase No.: 20137881 Well ID: M W -:7 S Sampier(s): Darren Cox Well Diameter: `inches Initial Depth to Water: 7 zJefeet Depth to Bottom: L feet Water Column Thickness: !, I Q feet Pumping Rate: /;� mLlmin System Volume: 1f 0 9 'mL Well Location: Equipment: YSI 5561YSI Pro Plus, Hach 2100Q, Water level Meter, Bladder Pump, QED Backpack +1- 0.1 +1- 5% <10 +/- 10% or 0.2 +1- 10 VENOM i --E' -� WA�� Comments (weather conditions, color, type of sample, purge -water management, etc,): Purge: I l'f kf Weather: 66 <y k],� *)0 — - Signature: Date: :2 _7 1 QAlQC Sign Off:]_ Date:-"r?f� k�o GOLFER DATE; 7 , 7 _ 2 it -2t GROUNDWATER SAMPLING LOG Project Name: _ High Point LF Project (Phase No.: 20137881 Well ID: rq r,J - 1� Sampler(s): Darren Cox Well Diameter: 2- inches Initial Depth to Water: 9,70 feet Depth to Bottom: 1 C feet Water Column Thickness: .�j feet Pumping Rate: rnLlmin System Volume: i mL Well Location: Equipment: YSI 5561YS1 Pro Plus, Hach 21 OQQ, Water Level Meter, Bladder Pump, QED Backpack +/- 5% <10 +r- 10% or 0.2 +r=10 Comments (weather conditions, color, type of sample, purge -water management, etc.): Purge: lb�S Weather: SkmJj $,a Signature: Date: 7 -" 2-O ze QAIQC Sign Off: _ _ _ _ 1"., pate: k*** GOLDE R DATE: - �) �Ozcj GROUNDWATER SAMPLING LOG Project Name: _High Paint LF Project /Phase No.: 20137881 Well ID: AtIQ - I Sampler(s): &Wren-e= MtC'V"S "[ c u g Well Diameter: 2 inches Initial Depth to Water: 15.96 feet Depth to Bottom: ),p feet Water Column Thickness: feet Pumping Rate: ! j mLlmin System Volume: `895 mL Well Location: Equipment: YSI 556/YS_I Pro Plus, Hach 2100Q, Water Level Meter, Bladder Pump, QED Backpack +/- 0.1 +/- S% <10 +r-10% oT 0 2 +1_ In mom -��_ -� comments (weather conditions, color, type of sample, purge -water management, etc,): Purge. 1053 Weather: Signature: Date: ? - � -' ,Ozu QAIQC Sign Off: Date:'y') —, r COLDER DATE: 7h '7- z-o e_6 GROUNDWATER SAMPLING LOG Project Name: High Point LF Project /Phase_ No.: 20137881 Well ID: ftw _,L Sampler(s): Darren Cox Well Diameter: 77 inches Initial Depth to Water: feet feet Depth to Bottom: fit_ Meet Water Column Thickness: Q , feet Pumping Rate: f 9 rnLlmin System Volume: mL Well Location: Equipment: YSI 556/YSI Pro Plus, Hach 2100Q, Water Level Meter, Bladder Pump, QED Backpack _ +1- 0.1 +1- 5% <10 +1- 10% or 0.2 +1- 10 Comments (weather conditions, color, type of sample, purge -water management, etc.): Purge: (Ca& Weather: i Signature: Date: "7-7"?_0?,6 QAIQC Sign Oft: � 1��-• Date: )-Z& �_ GOLDER Project Name: Sample ID: Sampling Location: Equipment: DATE: —7- ?- 2 c) SURFACE WATER SAMPLING LOG High Point LF Project No./Phase No.: 20137881 5W — I Sampler(s): _h fox Surface Water Location Sketch Time pH S.U. Cond. mSlcm fi Turh. ntu Dis. 02 mg/L Temp. oC ORP mV Comments (sample methodology, weather conditions, color, silt, etc.): Signature: �--L - Date: -2 QA/QC Sign Off: Date: QC:7-2u ZL GOLDER Project Name: High Point LF Sample ID: S-L Sampling Location: Equipment: Time pH s.u. Cond. m51cm Turb. ntu 4 Dis. 02 mg1L Temp. oC ORP mV DATE: 7. 2 � 2.d SURFACE WATER SAMPLING LOG Project No./Phase No.: 20137881 Sampler(s): '-L� C Surface Water Location Sketch Comments (sample methodology, weather conditions, color, silt, etc.): y a k,' � p 1. Cry Lam• Signature: C ❑ate;-2- QAIQC Sign Offs Lc Date: DATE: SURFACE WATER SAMPLING LOG GOLDER Project Name: High Point LF Project No./Phase No.: 20137881 Sample ID: / 73 -- Sampler(s): C�)C _ Sampling Location: Equipment:Js Surface Water Location Sketch Time f o PH S.U. Cond. rSlcm Turb. ntu Dis. 02 rnglL U Temp. oC ORP mV / off?, Rp S L Comments (sample methodology, weather conditions, color, silt, etc.): Signature: a l .-, Date: -7 �Zgaa QAlQC Sign Off: to i Date: zo GQLDER Project Name; High Point LF Sample ID: (,E! - V-r Sampling Location; DATE: :z - 7 - z Ca ?-A SURFACE WATER SAMPLING LOG Project No.lPhase No.: 20137881 Sampler(s): '_ (nK; Equipment: Pao 4jcAL -ztoo Q Surface Water Location Sketch Time 16 6 pH S.U. � Cond. MS/cm Turn, ntu f, r 1� � �1 Dis, 02 mg/L r � Temp. oC 7A, 7- ORP m v� Comments (sample methodology, weather conditions, color, slit, etc.): Signature: 4'Date: lO -zo QA/QC Sign Off: JaAmag Date: " --A:570 APPENDIX B July 2020 Groundwater and Surface Water Certificate -of - Analysis, Chain -of -Custodies, and Lab Data Reviews ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Friday, August 7, 2020 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 19116638.102, Project Name/Desc: GFL Env - High Point LF, LLC ENCO Workorder(s): CD10009 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Thursday, July 9, 2020. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, 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 2 PROJECT NARRATIVE Date: August 7, 2020 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Lab ID: CD10009 Overview (� �Eo www.encolabs.com This report is an amendment to the original report dated July 17, 2020. This report was revised, at the client's request, to remove extraneous analyses. 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 Continuing Calibration Verification (CCV) exhibited a high bias for Vinyl acetate; however, this analyte was not detected in the associated samples. The spike recovery for 1,4-Dioxane was outside the control limit for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of this analyte. The spike recoveries of the Antimony, Iron, Manganese, and Thallium were outside the control limits for the MS, MSD, and/or Post Digestion spike samples. The QC batches were approved based on acceptable LCS recovery of these elements. The spike recoveries of Alkalinity and Sulfate were outside the control limits for the MS and /or MSD spike samples. The QC batches were approved based on acceptable LCS recovery of these analytes. Quality Control Remarks The 8260D surrogate spike recovery of Toluene-d8 exceeded acceptance criteria for the MS and MSD samples. The samples were approved based on acceptable recovery of the other surrogate standards. Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. 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 2 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-AMW3 Lab ID: CD10009-01 Sampled: 07/08/20 11:00 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/05/20 07/10/20 09:00 07/11/20 01:48 EPA 310.2 NO PREP 07/22/20 07/16/20 08:33 07/16/20 10:50 EPA 6010D EPA 3005A 01/04/21 07/10/20 13:19 07/13/20 13:57 EPA 6020B EPA 3005A 01/04/21 07/10/20 14:11 07/15/20 12:49 EPA 7470A EPA 7470A 08/05/20 07/14/20 11:57 07/16/20 18:03 EPA 8260D EPA 5030B_MS 07/22/20 07/11/20 12:08 07/11/20 18:15 EPA 8260D EPA 5030B_MIS 07/22/20 07/13/20 13:07 07/13/20 18:52 SM 254OC-2011 NO PREP 07/15/20 07/13/20 18:33 07/13/20 18:33 Client ID: 4116-AMW2 Lab ID: CD10009-02 Sampled: 07/07/20 15:30 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/04/20 07/10/20 09:00 07/11/20 02:06 EPA 310.2 NO PREP 07/21/20 07/16/20 08:33 07/16/20 10:51 EPA 6010D EPA 3005A 01/03/21 07/10/20 13:19 07/13/20 14:05 EPA 6020B EPA 3005A 01/03/21 07/10/20 14:11 07/15/20 12:53 EPA 7470A EPA 7470A 08/04/20 07/14/20 11:57 07/16/20 18:10 EPA 8260D EPA 503013_MS 07/21/20 07/13/20 13:07 07/13/20 19:20 SM 2540C-2011 NO PREP 07/14/20 07/13/20 18:33 07/13/20 18:33 Client ID: 4116-AMW2 Lab ID: CD10009-02RE2 Sampled: 07/07/20 15:30 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 07/21/20 07/14/20 14:19 07/14/20 15:59 Client ID: P-3 Lab ID: CD10009-03 Sampled: 07/08/20 09:49 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 01/04/21 07/10/20 13:19 07/13/20 14:07 EPA 6020E EPA 3005A 01/04/21 07/10/20 14:11 07/15/20 12:57 EPA 7470A EPA 7470A 08/05/20 07/14/20 11:57 07/16/20 18:12 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 2 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-AMW3 Lab ID: CD10009-01 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 25 0.80 2.0 ug/L EPA 8260D Barium - Total 259 1.10 10.0 ug/L EPA 6010D Benzene 0.45 J 0.15 1.0 ug/L EPA 8260D Chloride 73000 2200 5000 ug/L EPA 300.0 Chromium - Total 4.37 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 8.92 J 1.40 10.0 ug/L EPA 6010D Iron - Total 7760 22.0 50.0 ug/L EPA 6010D Manganese - Total 6630 1.50 10.0 ug/L EPA 6010D Nickel - Total 2.54 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 38000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 450000 D 70000 75000 ug/L EPA 310.2 Total Dissolved Solids 730000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-AMW2 Lab ID: CD10009-02 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 256 1.10 10.0 ug/L EPA 6010D Benzene 1.7 0.15 1.0 ug/L EPA 8260D Chloride 130000 D 4400 10000 ug/L EPA 300.0 Chromium - Total 2.95 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 10.9 1.40 10.0 ug/L EPA 6010D Iron - Total 4340 22.0 50.0 ug/L EPA 6010D Manganese - Total 2850 1.50 10.0 ug/L EPA 6010D Nickel - Total 2.96 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 55000 D 5800 10000 ug/L EPA 300.0 Tetrahydrofuran 57 0.53 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 760000 D 70000 75000 ug/L EPA 310.2 Total Dissolved Solids 1200000 50000 50000 ug/L SM 2540C-2011 Xylenes (Total) 0.47 J 0.45 3.0 ug/L EPA 8260D Client ID: 4116-AMW2 Lab ID: CD30009-02RE2 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 110 D 4.0 10 ug/L EPA 8260D Client ID: P-3 Lab ID: CD10009-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 43.2 1.10 10.0 ug/L EPA 6010D Iron - Total 162 22.0 50.0 ug/L EPA 6010D Manganese - Total 32.7 1.50 10.0 ug/L EPA 6010D Mercury - Total 0.274 0.150 0.200 ug/L EPA 7470A FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 2 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CD10009-01 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 11:00 Work Order: CD10009 Project: GFL Env - High Point LF, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 18:52 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 18:52 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 18:52 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 18:52 REF Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 18:52 REF Benzene [71-43-2]A 0.45 J ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Carbon disulfide [75-15-O]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 18:52 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 18:52 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 18:52 REF QV-01 Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 18:52 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 21 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CD10009-01 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 11:00 Work Order: CD10009 Project: GFL Env - High Point LF, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 18:52 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 93 % 53-136 OG13026 EPA 6260D 0711312018:52 REF Dlbromofluoromethane 42 1 50.0 85 % 67-129 OG13026 EPA 6260D 0711312018:52 REF Toluene-c48 44 1 50.0 88 % 59-134 OG13026 EPA 6260D 0711312018:52 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:03 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 By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OG10029 EPA 6020B 07/15/20 12:49 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Barium [7440-39-3]^ 259 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 13:57 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 13:57 JDH Chromium [7440-47-3]^ 4.37 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Cobalt[7440-48-4]^ 8.92 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Iron [7439-89-6]^ 7760 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Manganese [7439-96-5]1 6630 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Nickel[7440-02-O]^ 2.54 J ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 12:49 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 13:57 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed By Notes Chloride [16887-00-6]^ 73000 ug/L 1 2200 5000 OG10013 EPA 300.0 07/11/20 01:48 LJI Sulfate as SO4 [14808-79-B]^ 38000 ug/L 1 2900 5000 OG10013 EPA 300.0 07/11/20 01:48 LJI Total Alkalinity as CaCO3 [471-34-1]^ 450000 D ug/L 5 70000 75000 OG16005 EPA 310.2 07/16/20 10:50 JAH Total Dissolved Solids^ 730000 ug/L 1 50000 50000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 2 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW1 Lab Sample ID:CD10009-01 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 11:00 Work Order: CD10009 Project: GFL Env - High Point LF, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 25 ug/L 1 0.80 2.0 OG11003 EPA 8260D 07/11/20 18:15 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.8 1 5.00 117 % 75-125 OG11003 EPA 8260D 0711112018:15 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 2 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CD10009-02 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 15:30 Work Order: CD10009 Project: GFL Env - High Point LF, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 19:20 REF 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 19:20 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 19:20 REF Acetone [67-64-1]^ 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 19:20 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 19:20 REF Benzene [71-43-2]^ 1.7 ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Carbon disulfide [75-15-O]^ 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 19:20 REF Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Chlorobenzene [108-90-7]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 19:20 REF Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Tetrahydrofuran [109-99-9]^ 57 ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 19:20 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 19:20 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 2 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CD10009-02 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 15:30 Work Order: CD10009 Project: GFL Env - High Point LF, LLC Sampled By: Darren Cox 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]^ 0.47 J ug/L 1 0.45 3.0 OG13026 EPA 8260D 07/13/20 19:20 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 93 % 53-136 OG13026 EPA 6260D 0711312019:20 REF Dibromofluoromethane 42 1 50.0 83 % 67-129 OG13026 EPA 6260D 0711312019:20 REF Toluene-c48 44 1 50.0 88 % 59-134 OG13026 EPA 6260D 0711312019:20 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:10 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OG10029 EPA 6020B 07/15/20 12:53 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Barium [7440-39-3]^ 256 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:05 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:05 JDH Chromium [7440-47-3]^ 2.95 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Cobalt[7440-48-4]^ 10.9 ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Iron [7439-89-6]^ 4340 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Manganese [7439-96-5]1 2850 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Nickel[7440-02-O]^ 2.96 J ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 12:53 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:05 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 130000 D ug/L 2 4400 10000 OG10013 EPA 300.0 07/11/20 02:06 LJI Sulfate as SO4 [14808-79-B]^ 55000 D ug/L 2 5800 10000 OG10013 EPA 300.0 07/11/20 02:06 LJI Total Alkalinity as CaCO3 [471-34-1]^ 760000 D ug/L 5 70000 75000 OG16005 EPA 310.2 07/16/20 10:51 JAH Total Dissolved Solids^ 1200000 ug/L 1 50000 50000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 2 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-AMW2 Lab Sample ID:CD10009-02 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 15:30 Work Order: CD10009 Project: GFL Env - High Point LF, LLC Sampled By: Darren Cox 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]^ 110 D ug/L 5 4.0 10 OG14047 EPA 8260D 07/14/20 15:59 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.6 1 5.00 93 % 75-125 OG14047 EPA 8260D 0711412015:59 KKW Description: P-3 Lab Sample ID:CD10009-03 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 09:49 Work Order: CD10009 Project: GFL Env - High Point LF, LLC Sampled By: Darren Cox 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]^ 0.274 ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:12 KAH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-O]^ 0.740 u ug/L 2 0.740 2.00 OG10029 EPA 6020B 07/15/20 12:57 RLF Arsenic[7440-38-2]^ 7.60 u ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Barium [7440-39-3]^ 43.2 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Beryllium [7440-41-7]^ 0.160 u ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:07 JDH Cadmium [7440-43-9]^ 0.360 u ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:07 JDH Chromium [7440-47-3]^ 1.40 u ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Cobalt [7440-48-4]^ 1.40 u ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Copper[7440-50-8]^ 1.60 u ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Iron [7439-89-6]^ 162 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Lead [7439-92-1]^ 3.10 u ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Manganese [7439-96-5]^ 32.7 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Nickel[7440-02-0]^ 2.20 u ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Selenium [7782-49-2]^ 6.20 u ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Silver [7440-22-4]^ 1.90 u ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Thallium [7440-28-O]^ 0.220 u ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 12:57 RLF Vanadium [7440-62-2]^ 1.40 u ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:07 JDH Zinc[7440-66-6]^ 4.40 u ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:07 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 2 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 0613O26 - EPA 5030E MS Blank (OG13026-BLK3) Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 16:56 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 46 u91L 50.0 93 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 2 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 0613O26 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OG13026-BLK3) Continued Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 16:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 42 u91L 50.0 63 67-129 Toluene-& 44 u91L 50.0 67 59-134 LCS (OG13026-BSI) Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 15:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 85 75-133 Benzene 19 1.0 ug/L 20.0 97 80-134 Chlorobenzene 20 1.0 ug/L 20.0 99 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 19 1.0 ug/L 20.0 95 74-120 Matrix Spike (OG13026-MS1) Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 15:29 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 77 75-133 Benzene 19 1.0 ug/L 20.0 2.1 84 80-134 Chlorobenzene 17 1.0 ug/L 20.0 0.17 U 86 80-120 Toluene 17 1.0 ug/L 20.0 0.50 84 71-120 Trichloroethene 17 1.0 ug/L 20.0 0.15 U 83 74-120 Matrix Spike Dup (OG13026-MSD1) Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 15:58 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 76 75-133 1 20 Benzene 20 1.0 ug/L 20.0 2.1 90 80-134 5 17 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 88 80-120 2 16 Toluene 18 1.0 ug/L 20.0 0.50 87 71-120 3 17 Trichloroethene 17 1.0 ug/L 20.0 0.15 U 86 74-120 4 22 Metals by EPA 6000/7000 Series Methods - Quality Control Batch OG14O36 - EPA 747OA Blank (OG14036-BLK3) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:36 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 (OG14036-BSI) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:38 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.87 0.200 ug/L 5.00 97 80-120 Matrix Spike (OG14036-MSS) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:44 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.88 0.200 ug/L 5.00 0.150 U 98 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 12 Of 2 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 0614O36 - EPA 747OA - Continued Matrix Spike Dup (OG34036-MSD1) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:46 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.77 0.200 ug/L 5.00 0.150 U 95 75-125 2 25 Post Spike (OG14036-PS1) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:48 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.18 0.200 ug/L 5.00 0.0160 103 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OG1OO27 - EPA 3OO5A Blank (OG10027-BLK3) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:39 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 (OG10027-BS1) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:45 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits Arsenic 172 10.0 ug/L 200 86 80-120 Barium 188 10.0 ug/L 200 94 80-120 Beryllium 17.5 1.00 ug/L 20.0 88 80-120 Cadmium 18.5 1.00 ug/L 20.0 93 80-120 Chromium 175 10.0 ug/L 200 87 80-120 Cobalt 180 10.0 ug/L 200 90 80-120 Copper 173 10.0 ug/L 200 86 80-120 Iron 940 50.0 ug/L 1000 94 80-120 Lead 183 10.0 ug/L 200 92 80-120 Manganese 178 10.0 ug/L 200 89 80-120 Nickel 185 10.0 ug/L 200 93 80-120 Selenium 178 10.0 ug/L 200 89 80-120 Silver 179 10.0 ug/L 200 90 80-120 Vanadium 175 10.0 ug/L 200 88 80-120 Zinc 191 10.0 ug/L 200 96 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. RPD RPD Limit Notes Page 13 of 21 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OG1OO27 - EPA 3OO5A - Continued Matrix Spike (OG10027-MS1) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:47 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 172 10.0 ug/L 200 7.60 U 86 75-125 Barium 1100 10.0 ug/L 200 935 85 75-125 Beryllium 17.6 1.00 ug/L 20.0 0.160 U 88 75-125 Cadmium 17.4 1.00 ug/L 20.0 0.360 U 87 75-125 Chromium 186 10.0 ug/L 200 8.88 88 75-125 Cobalt 182 10.0 ug/L 200 9.72 86 75-125 Copper 174 10.0 ug/L 200 1.60 U 87 75-125 Iron 36500 50.0 ug/L 1000 36100 42 75-125 QM-07 Lead 180 10.0 ug/L 200 3.10 U 90 75-125 Manganese 14300 10.0 ug/L 200 14200 10 75-125 QM-07 Nickel 181 10.0 ug/L 200 2.20 U 90 75-125 Selenium 182 10.0 ug/L 200 6.20 U 91 75-125 Silver 185 10.0 ug/L 200 1.90 U 93 75-125 Vanadium 183 10.0 ug/L 200 1.98 90 75-125 Zinc 187 10.0 ug/L 200 4.40 U 93 75-125 Matrix Spike Dup (OG10027-MSD1) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:50 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 178 10.0 ug/L 200 7.60 U 89 75-125 3 20 Barium 1100 10.0 ug/L 200 935 80 75-125 0.8 20 Beryllium 17.6 1.00 ug/L 20.0 0.160 U 88 75-125 0.06 20 Cadmium 17.4 1.00 ug/L 20.0 0.360 U 87 75-125 0.2 20 Chromium 185 10.0 ug/L 200 8.88 88 75-125 0.5 20 Cobalt 185 10.0 ug/L 200 9.72 88 75-125 2 20 Copper 174 10.0 ug/L 200 1.60 U 87 75-125 0.3 20 Iron 36100 50.0 ug/L 1000 36100 5 75-125 1 20 QM-07 Lead 183 10.0 ug/L 200 3.10 U 92 75-125 2 20 Manganese 14100 10.0 ug/L 200 14200 NR 75-125 1 20 QM-07 Nickel 183 10.0 ug/L 200 2.20 U 91 75-125 1 20 Selenium 174 10.0 ug/L 200 6.20 U 87 75-125 4 20 Silver 184 10.0 ug/L 200 1.90 U 92 75-125 0.8 20 Vanadium 182 10.0 ug/L 200 1.98 90 75-125 0.6 20 Zinc 189 10.0 ug/L 200 4.40 U 95 75-125 1 20 Post Spike (OG10027-PSI) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:52 Source: CD10010-02 Spike Source %REC Analvte Result Flaq POL Units Level Result %REC Limits RPD Arsenic 0.184 0.0100 mg/L 0.200 -0.00516 92 80-120 Barium 1.10 0.0100 mg/L 0.200 0.935 84 80-120 Beryllium 0.0184 0.00100 mg/L 0.0200 -0.000246 92 80-120 Cadmium 0.0178 0.00100 mg/L 0.0200 -0.000860 89 80-120 Chromium 0.192 0.0100 mg/L 0.200 0.00888 92 80-120 Cobalt 0.190 0.0100 mg/L 0.200 0.00972 90 80-120 Copper 0.182 0.0100 mg/L 0.200 -0.00350 91 80-120 Iron 36.2 0.0500 mg/L 1.00 36.1 11 80-120 Lead 0.187 0.0100 mg/L 0.200 0.00287 92 80-120 Manganese 14.1 0.0100 mg/L 0.200 14.2 NR 80-120 RPD Limit Notes QM-08 QM-08 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 14 of 21 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OG1OO27 - EPA 3OO5A - Continued Post Spike (OG10027-PSI) Continued Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:52 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 0.188 0.0100 mg/L 0.200 0.00132 93 80-120 Selenium 0.194 0.0100 mg/L 0.200 -0.000509 97 80-120 Silver 0.200 0.0100 mg/L 0.200 -0.00289 100 80-120 Vanadium 0.189 0.0100 mg/L 0.200 0.00198 93 80-120 Zinc 0.196 0.0100 mg/L 0.200 0.000906 97 80-120 Batch OG1OO29 - EPA 3O6OA Blank (OG10029-BLK3) Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:23 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (OG30029-BS3) Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.1 1.00 ug/L 20.0 105 80-120 Thallium 20.9 1.00 ug/L 20.0 104 80-120 Matrix Spike (OG10029-MSS) Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:31 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 44.1 2.00 ug/L 40.0 0.740 U 110 75-125 Thallium 39.5 2.00 ug/L 40.0 0.220 U 99 75-125 Matrix Spike Dup (OG10029-MSD1) Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:36 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 44.4 2.00 ug/L 40.0 0.740 U 111 75-125 0.8 20 Thallium 39.6 2.00 ug/L 40.0 0.220 U 99 75-125 0.4 20 Post Spike (OG10029-PS1) Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:40 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 14.6 1.00 ug/L 20.0 0.105 72 75-125 QM-08 Thallium 13.1 1.00 ug/L 20.0 0.00589 66 75-125 QM-08 Classical Chemistry Parameters - Quality Control Batch 061OO13 - NO PREP Blank (OG10013-BLK3) Prepared: 07/1O/2020 09:00 Analyzed: 07/10/2020 23:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride Sulfate as SO4 2200 U 5000 ug/L 2900 U 5000 ug/L FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 Of 2 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 0610013 - NO PREP - Continued LCS (OG10013-BS3) Prepared: 07/10/2020 09:00 Analyzed: 07/10/2020 23:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 49000 5000 ug/L 50000 99 90-110 Sulfate as SO4 48000 5000 ug/L 50000 95 90-110 Matrix Spike (OG10013-MS1) Prepared: 07/10/2020 09:00 Analyzed: 07/11/2020 00:37 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 260000 20000 ug/L 80000 180000 106 90-110 Sulfate as SO4 93000 20000 ug/L 80000 20000 91 90-110 Matrix Spike (OG10013-MS2) Prepared: 07/10/2020 09:00 Analyzed: 07/11/2020 01:30 Source: CD08765-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 510000 100000 ug/L 400000 130000 96 90-110 Sulfate as SO4 1600000 100000 ug/L 400000 1300000 87 90-110 QM-07 Batch OG13028 - NO PREP Blank (OG13028-BLK3) Prepared & Analyzed: 07/13/2020 18:33 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 (OG13028-BS1) Prepared & Analyzed: 07/13/2020 18:33 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 (OG13028-DUPl) Prepared & Analyzed: 07/13/2020 18:33 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 1700000 100000 ug/L 1700000 0.2 20 Duplicate (OG13028-DUP2) Prepared & Analyzed: 07/13/2020 18:33 Source: CD0SS90-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 410000 50000 ug/L 400000 3 20 Batch OG16005 - NO PREP Blank (OG16005-BLK3) Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:46 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 (OG36005-BSI) Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:47 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 of 2 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 0616005 - NO PREP - Continued LCS (OG16005-BS3) Continued Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:47 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 100 15 mg/L 100 101 80-120 Matrix Spike (OG36005-MS1) Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:48 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1600000 150000 ug/L 400000 1300000 90 80-120 Matrix Spike Dup (OG36005-MSD3) Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:49 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 1500000 150000 ug/L 400000 1300000 74 80-120 4 25 QM-07 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 04G11003 - EPA 5030E MS Blank (OG13003-BLK3) Prepared: 07/11/2020 00:00 Analyzed: 07/11/2020 12:17 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-& 5.6 ug/L 5.00 112 75-125 LCS (OG13003-BS1) Prepared: 07/11/2020 00:00 Analyzed: 07/11/2020 11:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 102 80-133 Toluene-& 5.6 ug/L 5.00 111 75-125 Matrix Spike (OG13003-MS1) Prepared: 07/11/2020 00:00 Analyzed: 07/11/2020 21:13 Source: AD04518-02 Spike Source %REC RPD Analvte Result Flaa Q Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 89 2.0 ug/L 25.0 71 72 80-133 QM-07 Toluene-& 5.3 ug/L 5.00 105 75-125 Matrix Spike Dup (OG31003-MSD1) Prepared: 07/11/2020 00:00 Analyzed: 07/11/2020 21:39 Source: AD04518-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 90 2.0 ug/L 25.0 71 75 80-133 0.7 19 QM-07 Toluene-d8 5.4 ug/L 5.00 108 75-125 Batch OG13036 - EPA 50306 MS Blank (OG13036-BLK3) Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 10:58 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 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 2 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 0613O36 - EPA 5030E MS - Continued Blank (OG13036-BLK3) Continued Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 10:58 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 6.0 ug/L 5.00 119 75-125 LCS (OG13036-BS1) Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 10:07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 102 80-133 Toluene-d8 5.8 ug/L 5.00 115 75-125 Matrix Spike (OG13036-MS1) Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 20:02 Source: AD04531-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 49 2.0 ug/L 25.0 22 104 80-133 Toluene-d8 6.6 ug/L 5.00 131 75-125 QS-03 Matrix Spike Dup (OG13036-MSD1) Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 20:28 Source: AD04531-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 49 2.0 ug/L 25.0 22 105 80-133 0.3 19 Toluene-d8 6.5 ug/L 5.00 130 75-125 QS-03 Batch OG14O47 - EPA 5030E MS Blank (OG14047-BLK3) Prepared: 07/14/2020 00:00 Analyzed: 07/14/2020 14:43 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-d8 4.9 ug/L 5.00 98 75-125 LCS (OG14047-BS1) Prepared: 07/14/2020 00:00 Analyzed: 07/14/2020 13:52 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 102 80-133 Toluene-& 5.0 ug/L 5.00 99 75-125 Matrix Spike (OG14047-M51) Prepared: 07/14/2020 00:00 Analyzed: 07/14/2020 17:16 Source: AD04531-03REI Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 52 2.0 ug/L 25.0 23 114 80-133 Toluene-d8 4.6 ug/L 5.00 92 75-125 Matrix Spike Dup (OG14047-MSD1) Prepared: 07/14/2020 00:00 Analyzed: 07/14/2020 17:42 Source: AD04531-03RE1 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 52 2.0 ug/L 25.0 23 115 80-133 0.2 19 Toluene-d8 4.6 ug/L 5.00 93 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 18 Of 2 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-08 Post -digestion spike did not meet method requirements due to confirmed matrix effects (dilution test). QS-03 Surrogate recovery 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 19 of 2 3 cc 0 U w Qom. 0 Q LL 0 a U N LLJ 0 a 0 im a Z 0 a 9�/ Er. ,L�U/� V/ Z 0 U Z LU 2 Z 0 cc 7 Z LU a N Ol o a r a 12 {f1 usR V A a)i Q U O C3 Q n va TJ m m X m U v F- Cn L11 o z o Cn J d � ¢ U7 v + E q O O V E U � d v w W N Q C Z m O ro z O G E N N d d ? h ooc aiemns x M _ c.cc a 6Ma 1 1 x x� £ m i a SOl`4OE eVNol�l� Z OiE �lri�llg�lt+ a o d C3 E E E a 5 UZ'A,Il'eS`$S,4S o o ©I ms C➢ ozg PePUei(3 x H CX19Zq'L XIPUaddV O()4jL8 V N p U P° v � E s 'i a mcc °u E b LL �_C V o � y ¢ m CL a 6 C N O m14�% T m m nm W E M w C G c C V 1 y ❑ p C LL m OI (q n a a E �y O �JO S 6 Cl ¢ C cc IL3 y ? "q a C.7 Ti V ? m m E yE V! Q0 1 C Q 'm E . a CLU N U p L Q v C � 0 f~ (n J N7 'E' ❑ N `m m o U L CO C a cv 4 Q m 8 ) 5 -Ilk¢ m LO Z 7 ECD m ¢ 1' yV a fl1 Z fn � f.7 a m 111C V N 9 = E a E Page 20 of 21 E Sample Preservation Verification ENCO Cary Work Order: CD10009 Client. Gold@r Associates, Inc. (00007) Project: GFL Env - High Paint LF. LLC Project #: 19116638.102 Logged In: 09-Jul-20 12:50 - Logged By Rachel Ann Y ni f1 Preservation Check Performed By: Date/Tirane: t�� CD10009-01 Cont Type Pres (pH) Requirement pH Checked / I €n Control pH Adjusted Daterhme Adjusted Reagent Used/Comments A 250mLP+HNO3 4 Y 4 N/ NA YN)/ NA Cunt Y Type Pres (pH) Requirement pH Checked i In Control DatelTime pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 YIN / NA Y / N / NA CD10009-03 Cant Type yp Pres (pH) Requirement pH Checked/ In Control DatelTime pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y I N/ NA Y I Nil NA Rea ent Name ID 1 2 Rea ent Name ID 3 4 Rea ent Name ID 5 6 nH Strip IQ: PH Strips COF0555 Page 21 of 21 C.lelmntlprim,,vvnv_ricatrrvdirUllUnL-CK.rpt r rj:,. ; . ENCO Laboratones Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Thursday, August 13, 2020 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 19116638.102, Project Name/Desc: GFL Env - High Point, LLC ENCO Workorder(s): CD10010 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Thursday, July 9, 2020. Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, 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 6O PROJECT NARRATIVE Date: August 13, 2020 Client: Golder Associates, Inc. (G0007) Project: GFL Env - High Point LF, LLC Lab ID: CD10010 Overview (� �Eo www.encolabs.com This report is an amendment to the original report dated July 20, 2020 for this work order. This report was revised, at the request of the client, to confirm the reported Total Chromium concentration of sample MW-8 and to analyze this sample for Dissolved Chromium. 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 Continuing Calibration Verification (CCV) exhibited a high bias for Vinyl acetate; however, this analyte was not detected in the associated samples. The spike recoveries of Acetone, Chloroform, Dibromomethane, and 1,4-Dioxane were outside the control limits for the MS and/or MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. The spike recoveries of Iron, Manganese, Antimony, and Thallium were outside the control limits for the MS, MSD, and/or Post Digestion spike samples. The QC batches were approved based on acceptable LCS recovery of these elements. The spike recoveries of Alkalinity and Sulfate were outside the control limits for the MS and /or MSD samples. The QC batches were approved based on acceptable LCS recovery of these elements. Quality Control Remarks The 8260D surrogate spike recovery of Toluene-d8 exceeded acceptance criteria for the MS and MSD samples. The samples were approved based on acceptable recovery of the other surrogate standards. Other Comments At the client's request, samples MW-2 and MW-6 were reanalyzed for Benzene. The resulting concentrations confirmed the original results, and the reanalysis information is available upon request. At the client's request, sample MW-8 was reanalyzed for Total Chromium. The resulting concentration confirmed the original result, and the reanalysis information is included in this report. All samples received under this work order arrived in acceptable conditions. The samples were not checked for residual chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Amanda Gaines FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 60 (� �Eo www.encolabs.com FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 of 60 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MW3 Lab ID: CD10010-01 Sampled: 07/07/20 08:20 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/04/20 07/10/20 09:00 07/11/20 02:23 EPA 310.2 NO PREP 07/21/20 07/16/20 08:33 07/16/20 10:52 EPA 6010D EPA 3005A 01/03/21 07/10/20 13:19 07/13/20 14:09 EPA 6020B EPA 3005A 01/03/21 07/10/20 14:11 07/15/20 13:01 EPA 7470A EPA 7470A 08/04/20 07/14/20 11:57 07/16/20 18:17 EPA 8260D EPA 5030B_MS 07/21/20 07/11/20 12:08 07/11/20 13:08 EPA 8260D EPA 5030B_MIS 07/21/20 07/13/20 13:07 07/13/20 19:49 SM 254OC-2011 NO PREP 07/14/20 07/13/20 18:33 07/13/20 18:33 Client ID: 4116-MW1 Lab ID: CD10030-01RE1 Sampled: 07/07/20 08:20 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/04/20 07/15/20 08:32 07/15/20 19:30 Client ID: 4116-MW2 (MS/MSD) Lab ID: CD10010-02 Sampled: 07/08/20 12:00 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/05/20 07/10/20 09:00 07/10/20 23:44 EPA 310.2 NO PREP 07/22/20 07/16/20 08:33 07/16/20 10:48 EPA 6010D EPA 3005A 01/04/21 07/10/20 13:19 07/13/20 13:42 EPA 6020B EPA 3005A 01/04/21 07/10/20 14:11 07/15/20 13:14 EPA 7470A EPA 7470A 08/05/20 07/14/20 11:57 07/16/20 17:41 EPA 8260D EPA 503013_MS 07/15/20 07/11/20 12:08 07/11/20 13:33 EPA 8260D EPA 503013_MS 07/22/20 07/13/20 13:07 07/13/20 17:54 SM 254OC-2011 NO PREP 07/15/20 07/13/20 18:33 07/13/20 18:33 Client ID: 4116-MW3 Lab ID: CD10010-03 Sampled: 07/07/20 09:56 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/04/20 07/10/20 09:00 07/11/20 02:41 EPA 310.2 NO PREP 07/21/20 07/16/20 08:33 07/16/20 10:52 EPA 6010D EPA 3005A 01/03/21 07/10/20 13:19 07/13/20 14:11 EPA 6020B EPA 3005A 01/03/21 07/10/20 14:11 07/15/20 13:19 EPA 7470A EPA 7470A 08/04/20 07/14/20 11:57 07/16/20 18:21 EPA 8260D EPA 503013_MS 07/21/20 07/11/20 12:08 07/11/20 13:59 EPA 8260D EPA 503013_MS 07/21/20 07/13/20 13:07 07/13/20 20:18 SM 254OC-2011 NO PREP 07/14/20 07/13/20 18:33 07/13/20 18:33 Client ID: 4116-MW4S Lab ID: CD10010-04 Sampled: 07/07/20 10:58 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/04/20 07/10/20 09:00 07/11/20 02:59 EPA 310.2 NO PREP 07/21/20 07/16/20 08:33 07/16/20 10:54 EPA 6010D EPA 3005A 01/03/21 07/10/20 13:19 07/13/20 14:13 EPA 6020E EPA 3005A 01/03/21 07/10/20 14:11 07/15/20 13:23 EPA 7470A EPA 7470A 08/04/20 07/14/20 11:57 07/16/20 18:23 EPA 8260D EPA 5030B_MS 07/21/20 07/11/20 12:08 07/11/20 14:25 EPA 8260D EPA 503013_MS 07/21/20 07/13/20 13:07 07/13/20 20:46 SM 2540C-2011 NO PREP 07/14/20 07/13/20 18:33 07/13/20 18:33 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 60 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MWS Lab ID: CD10010-05 Sampled: 07/07/20 12:10 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/04/20 07/10/20 09:00 07/11/20 03:16 EPA 310.2 NO PREP 07/21/20 07/16/20 08:33 07/16/20 10:55 EPA 6010D EPA 3005A 01/03/21 07/10/20 13:19 07/13/20 14:16 EPA 6020B EPA 3005A 01/03/21 07/10/20 14:11 07/15/20 13:27 EPA 7470A EPA 7470A 08/04/20 07/14/20 11:57 07/16/20 18:25 EPA 8260D EPA 5030B_MS 07/21/20 07/11/20 12:08 07/11/20 14:50 EPA 8260D EPA 5030B_MIS 07/21/20 07/13/20 13:07 07/13/20 21:15 SM 254OC-2011 NO PREP 07/14/20 07/13/20 18:33 07/13/20 18:33 Client ID: 4116-MW6 Lab ID: CD10010-06 Sampled: 07/08/20 13:47 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/05/20 07/10/20 09:00 07/11/20 04:09 EPA 310.2 NO PREP 07/22/20 07/16/20 08:33 07/16/20 10:56 EPA 6010D EPA 3005A 01/04/21 07/10/20 13:19 07/13/20 14:18 EPA 6020B EPA 3005A 01/04/21 07/10/20 14:11 07/15/20 13:31 EPA 7470A EPA 7470A 08/05/20 07/14/20 11:57 07/16/20 18:28 EPA 8260D EPA 503013_MS 07/22/20 07/13/20 13:07 07/13/20 21:43 SM 2540C-2011 NO PREP 07/15/20 07/13/20 18:33 07/13/20 18:33 Client ID: 4116-MW6 Lab ID: CD10030-06RE2 Sampled: 07/08/20 13:47 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 07/22/20 07/14/20 14:19 07/14/20 15:34 Client ID: 4116-MW7S Lab ID: CD10010-07 Sampled: 07/07/20 13:03 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/04/20 07/10/20 09:00 07/11/20 04:27 EPA 6010D EPA 3005A 01/03/21 07/10/20 13:19 07/13/20 14:20 EPA 6020B EPA 3005A 01/03/21 07/10/20 14:11 07/15/20 13:36 EPA 7470A EPA 7470A 08/04/20 07/14/20 11:57 07/16/20 18:30 EPA 8260D EPA 503013_MS 07/21/20 07/13/20 13:07 07/13/20 22:12 SM 2540C-2011 NO PREP 07/14/20 07/13/20 18:33 07/13/20 18:33 Client ID: 4116-MW7S Lab ID: CD10030-07RE1 Sampled: 07/07/20 13:03 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 310.2 NO PREP 07/21/20 07/16/20 08:33 07/16/20 11:24 Client ID: 4116-MW7S Lab ID: CD10010-07RE2 Sampled: 07/07/20 13:03 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 07/21/20 07/14/20 14:19 07/14/20 18:33 Client ID: 4116-MW8 Lab ID: CD10010-08 Sampled: 07/07/20 09:05 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 08/04/20 07/10/20 09:00 07/11/20 04:45 EPA 310.2 NO PREP 07/21/20 07/16/20 08:33 07/16/20 10:57 EPA 6010D EPA 3005A 01/03/21 07/10/20 13:19 07/13/20 14:34 EPA 6010D EPA 3005A 01/03/21 08/10/20 10:15 08/12/20 10:30 EPA 6020E EPA 3005A 01/03/21 07/10/20 14:11 07/15/20 13:40 EPA 7470A EPA 7470A 08/04/20 07/14/20 11:57 07/16/20 18:33 EPA 8260D EPA 5030B_MS 07/21/20 07/11/20 12:08 07/11/20 16:07 EPA 8260D EPA 503013_MS 07/21/20 07/13/20 13:07 07/13/20 22:40 SM 2540C-2011 NO PREP 07/14/20 07/13/20 18:33 07/13/20 18:33 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) Of 60 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 4116-MWB Lab ID: CD30030-08RE3 Sampled: 07/07/20 09:05 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A O1/03/21 08/10/20 10:15 08/12/20 10:57 Client ID: 4116-SW3 Lab ID: CD10010-09 Sampled: 07/07/20 10:20 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A O1/03/21 07/10/20 13:19 07/13/20 14:25 EPA 6020E EPA 3005A O1/03/21 07/10/20 14:11 07/15/20 13:44 EPA 8260D EPA 503013_MS 07/21/20 07/11/20 12:08 07/11/20 16:32 EPA 8260D EPA 503013_MS 07/21/20 07/13/20 13:12 07/14/20 06:42 Client ID: 4116-SW4 Lab ID: CD10010-10 Sampled: 07/07/20 16:05 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A O1/03/21 07/10/20 13:19 07/13/20 14:41 EPA 6020E EPA 3005A O1/03/21 07/10/20 14:11 07/15/20 13:48 EPA 8260D EPA 503013_MS 07/21/20 07/11/20 12:08 07/11/20 16:58 EPA 8260D EPA 503013_MS 07/21/20 07/13/20 13:12 07/14/20 07:11 Client ID: 4116-Field Blank Lab ID: CD10010-11 Sampled: 07/08/20 14:30 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A O1/04/21 07/10/20 13:19 07/13/20 14:43 EPA 6020E EPA 3005A O1/04/21 07/10/20 14:11 07/15/20 13:53 EPA 7470A EPA 7470A 08/05/20 07/14/20 11:57 07/16/20 18:35 EPA 8260D EPA 5030B_MIS 07/22/20 07/11/20 12:08 07/11/20 17:24 EPA 8260D EPA 503013_MS 07/22/20 07/13/20 13:07 07/13/20 23:09 Client ID: 4116-Trip Blank Lab ID: CD10010-12 Sampled: 07/07/20 08:20 Received: 07/09/20 11:56 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 07/21/20 07/11/20 12:08 07/11/20 17:49 EPA 8260D EPA 503013_MS 07/21/20 07/13/20 13:12 07/14/20 07:39 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 60 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW3 Lab ID: CD10010-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 36.0 1.10 10.0 ug/L EPA 6010D Iron - Total 117 22.0 50.0 ug/L EPA 6010D Manganese - Total 6.30 J 1.50 10.0 ug/L EPA 6010D Mercury - Total 0.229 0.150 0.200 ug/L EPA 7470A Sulfate as SO4 200000 D 12000 20000 ug/L EPA 300.0 Total Dissolved Solids 420000 50000 50000 ug/L SM 2540C-2011 Vanadium - Total 1.57 J 1.40 10.0 ug/L EPA 6010D Client ID: 4116-MW1 Lab ID: CD10010-01RE1 Analvte Results Flag MDL PQL Units Method Notes Chloride 17000 2200 5000 ug/L EPA 300.0 Client ID: 4116-MW2 (MS/MSD) Lab ID: CD10010-02 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 71 0.80 2.0 ug/L EPA 8260D QM-07 Acetone 28 10 20 ug/L EPA 8260D QM-07 Barium - Total 935 1.10 10.0 ug/L EPA 6010D Benzene 2.1 0.15 1.0 ug/L EPA 8260D Chloride 180000 D 8700 20000 ug/L EPA 300.0 Chromium - Total 8.88 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 9.72 J 1.40 10.0 ug/L EPA 6010D Iron - Total 36100 22.0 50.0 ug/L EPA 6010D Manganese - Total 14200 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 20000 D 12000 20000 ug/L EPA 300.0 Toluene 0.50 J 0.14 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 1300000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 1700000 100000 100000 ug/L SM 2540C-2011 Vanadium - Total 1.98 J 1.40 10.0 ug/L EPA 6010D Xylenes (Total) 1.2 J 0.45 3.0 uq/L EPA 8260D Client ID: 4116-MW3 Lab ID: CD10010-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 39.5 1.10 10.0 ug/L EPA 6010D Chloride 12000 2200 5000 ug/L EPA 300.0 Chromium - Total 8.77 J 1.40 10.0 ug/L EPA 6010D Iron - Total 355 22.0 50.0 ug/L EPA 6010D Manganese - Total 59.5 1.50 10.0 ug/L EPA 6010D Nickel - Total 2.85 J 2.20 10.0 ug/L EPA 6010D Silver - Total 11.8 1.90 10.0 ug/L EPA 6010D Sulfate as SO4 11000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 30000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 110000 50000 50000 ug/L SM 2540C-2011 Zinc - Total 7.83 1 4.40 10.0 ug/L EPA 6010D Client ID: 4116-MW4S Lab ID: CD10010-04 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 1.8 J 0.80 2.0 ug/L EPA 8260D Barium - Total 72.0 1.10 10.0 ug/L EPA 6010D Chloride 15000 2200 5000 ug/L EPA 300.0 Iron - Total 575 22.0 50.0 ug/L EPA 6010D Manganese - Total 94.3 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 30000 2900 5000 ug/L EPA 300.0 Total Dissolved Solids 130000 50000 50000 ug/L SM 2540C-2011 Vanadium - Total 1.40 J 1.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 60 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MWS Lab ID: CD10010-05 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 8.9 0.80 2.0 ug/L EPA 8260D Barium - Total 40.6 1.10 10.0 ug/L EPA 6010D Chloride 6400 2200 5000 ug/L EPA 300.0 Iron - Total 33600 22.0 50.0 ug/L EPA 6010D Manganese - Total 1050 1.50 10.0 ug/L EPA 6010D Sulfate as SO4 14000 2900 5000 ug/L EPA 300.0 Total Alkalinity as CaCO3 86000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 140000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW6 Lab ID: CD10010-06 Analvte Results Flag MDL PQL Units Method Notes Acetone 12 J 10 20 ug/L EPA 8260D Barium - Total 687 1.10 10.0 ug/L EPA 6010D Benzene 3.0 0.15 1.0 ug/L EPA 8260D Chloride 220000 D 8700 20000 ug/L EPA 300.0 Chromium - Total 6.80 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 4.77 J 1.40 10.0 ug/L EPA 6010D Iron - Total 8510 22.0 50.0 ug/L EPA 6010D Manganese - Total 5740 1.50 10.0 ug/L EPA 6010D Nickel - Total 3.09 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 47000 D 12000 20000 ug/L EPA 300.0 Tetrahydrofuran 89 0.53 1.0 ug/L EPA 8260D Total Alkalinity as CaCO3 1600000 D 140000 150000 ug/L EPA 310.2 Total Dissolved Solids 2300000 100000 100000 ug/L SM 2540C-2011 Vanadium - Total 2.93 J 1.40 10.0 ug/L EPA 6010D Client ID: 4116-MW6 Lab ID: CD10010-06RE2 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 240 D 8.0 20 uq/L EPA 8260D Client ID: 4116-MW7S Lab ID: CD10010-07 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 282 1.10 10.0 ug/L EPA 6010D Chloride 15000 2200 5000 ug/L EPA 300.0 Iron - Total 80.3 22.0 50.0 ug/L EPA 6010D Manganese - Total 6.26 J 1.50 10.0 ug/L EPA 6010D Nickel - Total 2.29 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 41000 2900 5000 ug/L EPA 300.0 Total Dissolved Solids 390000 50000 50000 ug/L SM 2540C-2011 Vanadium - Total 8.72 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 4.52 J 4.40 10.0 ug/L EPA 6010D Client ID: 4116-MW7S Lab ID: CD30010-07RE3 Analvte Results Flag MDL PQL Units Method Notes Total Alkalinity as CaCO3 270000 D 28000 30000 ug/L EPA 310.2 Client ID: 4116-MW7S Lab ID: CD30010-07RE2 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 3.5 0.80 2.0 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 6O (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 4116-MW8 Lab ID: CD10010-08 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 34 0.80 2.0 ug/L EPA 8260D Barium - Total 136 1.10 10.0 ug/L EPA 6010D Benzene 0.97 J 0.15 1.0 ug/L EPA 8260D Chloride 130000 D 4400 10000 ug/L EPA 300.0 Chromium - Total 12.3 1.40 10.0 ug/L EPA 6010D Chromium - Dissolved 9.55 J 1.40 10.0 ug/L EPA 6010D LG-01 Cobalt - Total 9.29 J 1.40 10.0 ug/L EPA 6010D Iron - Total 4250 22.0 50.0 ug/L EPA 6010D Manganese - Total 20800 1.50 10.0 ug/L EPA 6010D Methylene chloride 1.0 0.23 1.0 ug/L EPA 8260D Nickel - Total 2.25 J 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 60000 D 5800 10000 ug/L EPA 300.0 Total Alkalinity as CaCO3 600000 D 70000 75000 ug/L EPA 310.2 Total Dissolved Solids 1000000 50000 50000 ug/L SM 2540C-2011 Client ID: 4116-MW8 Lab ID: CD10010-08RE3 Analvte Results Flag MDL PQL Units Method Notes Chromium - Total 10.5 1.40 10.0 ug/L EPA 6010D Client ID: 4116-SW3 Lab ID: CD10010-09 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 6.6 0.80 2.0 ug/L EPA 8260D Barium - Total 61.1 1.10 10.0 ug/L EPA 6010D Vanadium - Total 2.63 J 1.40 10.0 ug/L EPA 6010D Client ID: 4116-SW4 Lab ID: CD10010-10 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 4.0 0.80 2.0 ug/L EPA 8260D Barium - Total 40.7 1.10 10.0 ug/L EPA 6010D Vanadium - Total 1.75 1 1.40 10.0 ug/L EPA 6010D FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CD10010-01 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 08:20 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 19:49 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 19:49 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 19:49 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 19:49 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 19:49 REF Benzene [71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 19:49 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 19:49 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 19:49 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 19:49 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CD10010-01 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 08:20 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 19:49 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 92 % 53-136 OG13026 EPA 6260D 0711312019:49 REF Dlbromofluoromethane 43 1 50.0 85 % 67-129 OG13026 EPA 6260D 0711312019:49 REF Toluene-d8 44 1 50.0 88 % 59-134 OG13026 EPA 6260D 0711312019:49 REF 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]^ 0.229 ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:17 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 OG10029 EPA 6020B 07/15/20 13:01 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Barium [7440-39-3]^ 36.0 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:09 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:09 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Iron [7439-89-6]^ 117 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Manganese [7439-96-5]^ 6.30 J ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:01 RLF Vanadium [7440-62-2]^ 1.57 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:09 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 17000 ug/L 1 2200 5000 OG15005 EPA 300.0 07/15/20 19:30 LJI Sulfate as SO4 [14808-79-8]^ 200000 D ug/L 4 12000 20000 OG10013 EPA 300.0 07/11/20 02:23 LJI Total Alkalinity as CaCO3 [471-34-1]^ 14000 U ug/L 1 14000 15000 OG16005 EPA 310.2 07/16/20 10:52 JAH Total Dissolved Solids^ 420000 ug/L 1 50000 50000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW1 Lab Sample ID:CD10010-01 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 08:20 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 OG11003 EPA 8260D 07/11/20 13:08 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 OG11003 EPA 8260D 0711112013:08 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CD10010-02 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 12:00 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 17:54 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 17:54 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 17:54 REF Acetone [67-64-1]A 28 ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 17:54 REF QM-07 Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 17:54 REF Benzene [71-43-2]A 2.1 ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Carbon disulfide [75-15-O]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 17:54 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF QM-07 Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF QM-07 Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 17:54 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Toluene [108-88-3]A 0.50 1 ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 17:54 REF QV-01 Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 17:54 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CD10010-02 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 12:00 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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]^ 1.2 J ug/L 1 0.45 3.0 OG13026 EPA 8260D 07/13/20 17:54 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 47 1 50.0 94 % 53-136 OG13026 EPA 6260D 0711312017:54 REF Dibromofluoromethane 41 1 50.0 83 % 67-129 OG13026 EPA 6260D 0711312017:54 REF Toluene-c48 44 1 50.0 87 % 59-134 OG13026 EPA 6260D 0711312017:54 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 17:41 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 OG10029 EPA 6020B 07/15/20 13:14 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Barium [7440-39-3]^ 935 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 13:42 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 13:42 JDH Chromium [7440-47-3]^ 8.88 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Cobalt[7440-48-4]^ 9.72 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Iron [7439-89-6]^ 36100 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Manganese [7439-96-5]1 14200 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:14 RLF Vanadium [7440-62-2]^ 1.98 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 13:42 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 13:42 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]^ 180000 D ug/L 4 8700 20000 OG10013 EPA 300.0 07/10/20 23:44 LJI Sulfate as SO4 [14808-79-B]^ 20000 D ug/L 4 12000 20000 OG10013 EPA 300.0 07/10/20 23:44 LJI Total Alkalinity as CaCO3 [471-34-1]^ 1300000 D ug/L 10 140000 150000 OG16005 EPA 310.2 07/16/20 10:48 JAH Total Dissolved Solids^ 1700000 ug/L 2 100000 100000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW2 (MS/MSD) Lab Sample ID:CD10010-02 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 12:00 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 71 ug/L 1 0.80 2.0 OG11003 EPA 8260D 07/11/20 13:33 KKW QM-07 Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.7 1 5.00 115 % 75-125 OG11003 EPA 8260D 071111201333 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID: CD10010-03 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 09:56 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 20:18 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 20:18 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 20:18 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 20:18 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 20:18 REF Benzene [71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 20:18 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 20:18 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 20:18 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 20:18 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CD10010-03 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 09:56 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 20:18 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 93 % 53-136 OG13026 EPA 6260D 07113120 20:16 REF Dlbromofluoromethane 42 1 50.0 84 % 67-129 OG13026 EPA 6260D 07113120 20:18 REF Toluene-c48 45 1 50.0 89 % 59-134 OG13026 EPA 6260D 07113120 20:18 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:21 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 OG10029 EPA 6020B 07/15/20 13:19 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Barium [7440-39-3]^ 39.5 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:11 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:11 JDH Chromium [7440-47-3]^ 8.77 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Iron [7439-89-6]^ 355 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Manganese [7439-96-5]1 59.5 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Nickel[7440-02-O]^ 2.85 J ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Silver[7440-22-4]^ 11.8 ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:19 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:11 JDH Zinc[7440-66-6]^ 7.83 J ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:11 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 OG10013 EPA 300.0 07/11/20 02:41 LJI Sulfate as SO4 [14808-79-B]^ 11000 ug/L 1 2900 5000 OG10013 EPA 300.0 07/11/20 02:41 LJI Total Alkalinity as CaCO3 [471-34-1]^ 30000 ug/L 1 14000 15000 OG16005 EPA 310.2 07/16/20 10:52 JAH Total Dissolved Solids^ 110000 ug/L 1 50000 50000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW3 Lab Sample ID:CD10010-03 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 09:56 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG11003 EPA 8260D 07/11/20 13:59 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.4 1 5.00 109 % 75-125 OG11003 EPA 8260D 0711112013:59 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID: CD10010-04 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 10:58 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 20:46 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 20:46 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 20:46 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 20:46 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 20:46 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 20:46 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 20:46 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 20:46 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 20:46 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CD10010-04 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 10:58 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 20:46 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 47 1 50.0 93 % 53-136 OG13026 EPA 6260D 07113120 20:46 REF Dlbromofluoromethane 43 1 50.0 85 % 67-129 OG13026 EPA 6260D 07113120 20:46 REF Toluene-c48 44 1 50.0 88 % 59-134 OG13026 EPA 6260D 07113120 20:46 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:23 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 OG10029 EPA 6020B 07/15/20 13:23 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Barium [7440-39-3]^ 72.0 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:13 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:13 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Iron [7439-89-6]^ 575 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Manganese [7439-96-5]^ 94.3 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:23 RLF Vanadium [7440-62-2]^ 1.40 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:13 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:13 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]^ 15000 ug/L 1 2200 5000 OG10013 EPA 300.0 07/11/20 02:59 LJI Sulfate as SO4 [14808-79-8]^ 30000 ug/L 1 2900 5000 OG10013 EPA 300.0 07/11/20 02:59 LJI Total Alkalinity as CaCO3 [471-34-1]^ 14000 U ug/L 1 14000 15000 OG16005 EPA 310.2 07/16/20 10:54 JAH Total Dissolved Solids^ 130000 ug/L 1 50000 50000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW4S Lab Sample ID:CD10010-04 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 10:58 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 1.8 J ug/L 1 0.80 2.0 OG11003 EPA 8260D 07/11/20 14:25 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 OG11003 EPA 8260D 0711112014:25 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CD10010-05 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 12:10 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 21:15 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 21:15 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 21:15 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 21:15 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 21:15 REF Benzene [71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 21:15 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 21:15 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 21:15 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 21:15 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CD10010-05 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 12:10 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 21:15 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 92 % 53-136 OG13026 EPA 6260D 07113120 21:15 REF Dlbromofluoromethane 43 1 50.0 86 % 67-129 OG13026 EPA 6260D 07113120 21:15 REF Toluene-c48 44 1 50.0 89 % 59-134 OG13026 EPA 6260D 07113120 21:15 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:25 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 OG10029 EPA 6020B 07/15/20 13:27 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Barium [7440-39-3]^ 40.6 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:16 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:16 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Iron [7439-89-6]^ 33600 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Manganese [7439-96-5]1 1050 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:27 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:16 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:16 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]^ 6400 ug/L 1 2200 5000 OG10013 EPA 300.0 07/11/20 03:16 LJI Sulfate as SO4 [14808-79-B]^ 14000 ug/L 1 2900 5000 OG10013 EPA 300.0 07/11/20 03:16 LJI Total Alkalinity as CaCO3 [471-34-1]^ 86000 ug/L 1 14000 15000 OG16005 EPA 310.2 07/16/20 10:55 JAH Total Dissolved Solids^ 140000 ug/L 1 50000 50000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW5 Lab Sample ID:CD10010-05 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 12:10 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 8.9 ug/L 1 0.80 2.0 OG11003 EPA 8260D 07/11/20 14:50 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.6 1 5.00 112 % 75-125 OG11003 EPA 8260D 0711112014:50 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CD10010-06 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 13:47 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 21:43 REF 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 21:43 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 21:43 REF Acetone [67-64-1]^ 12 J ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 21:43 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 21:43 REF Benzene [71-43-2]^ 3.0 ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Carbon disulfide [75-15-O]^ 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 21:43 REF Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 21:43 REF Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Tetrahydrofuran [109-99-9]^ 69 ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 21:43 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 21:43 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CD10010-06 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 13:47 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 21:43 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 47 1 50.0 93 % 53-136 OG13026 EPA 6260D 07113120 21:43 REF Dlbromofluoromethane 42 1 50.0 83 % 67-129 OG13026 EPA 6260D 07113120 21:43 REF Toluene-c48 44 1 50.0 88 % 59-134 OG13026 EPA 6260D 07113120 21:43 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:28 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 OG10029 EPA 6020B 07/15/20 13:31 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Barium [7440-39-3]^ 687 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:18 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:18 JDH Chromium [7440-47-3]^ 6.80 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Cobalt[7440-48-4]^ 4.77 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Iron [7439-89-6]^ 8510 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Manganese [7439-96-5]1 5740 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Nickel[7440-02-O]^ 3.09 J ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:31 RLF Vanadium [7440-62-2]^ 2.93 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:18 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 220000 D ug/L 4 8700 20000 OG10013 EPA 300.0 07/11/20 04:09 LJI Sulfate as SO4 [14808-79-B]^ 47000 D ug/L 4 12000 20000 OG10013 EPA 300.0 07/11/20 04:09 LJI Total Alkalinity as CaCO3 [471-34-1]^ 1600000 D ug/L 10 140000 150000 OG16005 EPA 310.2 07/16/20 10:56 JAH Total Dissolved Solids^ 2300000 ug/L 2 100000 100000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW6 Lab Sample ID:CD10010-06 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 13:47 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 240 D ug/L 10 8.0 20 OG14047 EPA 8260D 07/14/20 15:34 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.0 1 5.00 99 % 75-125 OG14047 EPA 8260D 071141201534 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CD10010-07 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 13:03 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 22:12 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 22:12 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 22:12 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 22:12 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 22:12 REF Benzene [71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 22:12 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Chlorobenzene [108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 22:12 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 22:12 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 22:12 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 28 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CD10010-07 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 13:03 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 22:12 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 93 % 53-136 OG13026 EPA 6260D 07113120 22:12 REF Dlbromofluoromethane 43 1 50.0 85 % 67-129 OG13026 EPA 6260D 07113120 22:12 REF Toluene-c48 44 1 50.0 88 % 59-134 OG13026 EPA 6260D 07113120 22:12 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:30 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 By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OG10029 EPA 6020B 07/15/20 13:36 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Barium [7440-39-3]^ 282 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:20 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:20 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Iron [7439-89-6]^ 80.3 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Manganese [7439-96-5]1 6.26 J ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Nickel[7440-02-O]^ 2.29 J ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:36 RLF Vanadium [7440-62-2]^ 8.72 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Zinc[7440-66-6]^ 4.52 J ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:20 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed By Notes Chloride [16887-00-6]^ 15000 ug/L 1 2200 5000 OG10013 EPA 300.0 07/11/20 04:27 LJI Sulfate as SO4 [14808-79-B]^ 41000 ug/L 1 2900 5000 OG10013 EPA 300.0 07/11/20 04:27 LJI Total Alkalinity as CaCO3 [471-34-1]^ 270000 D ug/L 2 28000 30000 OG16005 EPA 310.2 07/16/20 11:24 JAH Total Dissolved Solids^ 390000 ug/L 1 50000 50000 OG13028 SM 254OC-2011 07/13/20 18:33 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 29 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW7S Lab Sample ID:CD10010-07 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 13:03 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS SIM Isotope Dilution A - ENCO Orlando certified analyte [NC 424] Analyte KAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed py Notes 1,4-Dioxane [123-91-1]^ 3.5 ug/L 1 0.80 2.0 OG14047 EPA 8260D 07/14/20 18:33 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 4.8 1 5.00 95 % 75-125 OG14047 EPA 8260D 071141201833 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID: CD10010-08 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 09:05 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 22:40 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 22:40 REF 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 22:40 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 22:40 REF Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 22:40 REF Benzene [71-43-2]A 0.97 J ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Carbon disulfide [75-15-O]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 22:40 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 22:40 REF Methylene chloride [75-09-2]A 1.0 ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 22:40 REF QV-01 Vinyl chloride [75-01-4]A 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 22:40 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 31 of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CD10010-08 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 09:05 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 22:40 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 92 % 53-136 OG13026 EPA 6260D 07113120 22:40 REF Dlbromofluoromethane 43 1 50.0 85 % 67-129 OG13026 EPA 6260D 07113120 22:40 REF Toluene-c48 44 1 50.0 88 % 59-134 OG13026 EPA 6260D 07113120 22:40 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:33 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 OG10029 EPA 6020B 07/15/20 13:40 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Barium [7440-39-3]^ 136 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:34 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:34 JDH Chromium [7440-47-3]^ 12.3 ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Chromium [7440-47-3]^ 10.5 ug/L 1 1.40 10.0 OH10022 EPA 6010D 08/12/20 10:57 JDH Cobalt[7440-48-4]^ 9.29 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Iron [7439-89-6]^ 4250 ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Manganese [7439-96-5]^ 20800 ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Nickel[7440-02-O]^ 2.25 J ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:40 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:34 JDH Metals (Dissolved) 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 Chromium [7440-47-3]^ 9.55 J ug/L 1 1.40 10.0 OH10022 EPA 6010D 08/12/20 10:30 JDH LG-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 32 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-MW8 Lab Sample ID:CD10010-08 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/07/20 09:05 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG10013 EPA 300.0 07/11/20 04:45 LII Sulfate as SO4 [14808-79-8]^ 60000 D ug/L 2 5800 10000 OG10013 EPA 300.0 07/11/20 04:45 LII Total Alkalinity as CaCO3 [471-34-1]^ 600000 D ug/L 5 70000 75000 OG16005 EPA 310.2 07/16/20 10:57 JAH Total Dissolved Solids^ 1000000 ug/L 1 50000 50000 OG13028 SM 2540C-2011 07/13/20 18:33 DMJ Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analvte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 34 ug/L 1 0.80 2.0 OG11003 EPA 8260D 07/11/20 16:07 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes Toluene-d8 5.3 1 5.00 106 % 75-125 OG11003 EPA 8260D 0711112016:07 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW3 Lab Sample ID: CD10010-09 Received: 07/09/20 11:56 Matrix: Surface Water Sampled:07/07/20 10:20 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13027 EPA 8260D 07/14/20 06:42 REF 2-1-lexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13027 EPA 8260D 07/14/20 06:42 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13027 EPA 8260D 07/14/20 06:42 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13027 EPA 8260D 07/14/20 06:42 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13027 EPA 8260D 07/14/20 06:42 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13027 EPA 8260D 07/14/20 06:42 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13027 EPA 8260D 07/14/20 06:42 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13027 EPA 8260D 07/14/20 06:42 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13027 EPA 8260D 07/14/20 06:42 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 34 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW3 Lab Sample ID:CD10010-09 Received: 07/09/20 11:56 Matrix: Surface Water Sampled:07/07/20 10:20 Work Order: CD10010 Project: GFL Env - High Point, LLC 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 Ay Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 0G13027 EPA 8260D 07/14/20 06:42 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 92 % 53-136 OG13027 EPA 6260D 07114120 06:42 REF Dibromofluoromethane 43 1 50.0 86 % 67-129 OG13027 EPA 6260D 07114120 06:42 REF Toluene-d8 44 1 50.0 88 % 59-134 OG13027 EPA 6260D 07114120 06:42 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 0G10029 EPA 6020B 07/15/20 13:44 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Barium [7440-39-3]^ 61.1 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:25 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 0G10027 EPA 6010D 07/13/20 14:25 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 0G10027 EPA 6010D 07/13/20 14:25 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 0G10029 EPA 6020B 07/15/20 13:44 RLF Vanadium [7440-62-2]^ 2.63 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:25 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 0G10027 EPA 6010D 07/13/20 14:25 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]A 6.6 ug/L 1 0.80 2.0 OG11003 EPA 8260D 07/11/20 16:32 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.3 1 5.00 107 % 75-125 OG11003 EPA 8260D 071111201622 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW4 Lab Sample ID: CD10010-10 Received: 07/09/20 11:56 Matrix: Surface Water Sampled:07/07/20 16:05 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13027 EPA 8260D 07/14/20 07:11 REF 2-1-lexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13027 EPA 8260D 07/14/20 07:11 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13027 EPA 8260D 07/14/20 07:11 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13027 EPA 8260D 07/14/20 07:11 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13027 EPA 8260D 07/14/20 07:11 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13027 EPA 8260D 07/14/20 07:11 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13027 EPA 8260D 07/14/20 07:11 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13027 EPA 8260D 07/14/20 07:11 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13027 EPA 8260D 07/14/20 07:11 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 36 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-SW4 Lab Sample ID:CD10010-10 Received: 07/09/20 11:56 Matrix: Surface Water Sampled:07/07/20 16:05 Work Order: CD10010 Project: GFL Env - High Point, LLC 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 Ay Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 0G13027 EPA 8260D 07/14/20 07:11 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 45 1 50.0 91 % 53-136 OG13027 EPA 6260D 07114120 07:11 REF Dibromofluoromethane 43 1 50.0 85 % 67-129 OG13027 EPA 6260D 07114120 07:11 REF Toluene-d8 44 1 50.0 88 % 59-134 OG13027 EPA 6260D 07114120 07:11 REF Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 0G10029 EPA 6020B 07/15/20 13:48 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Barium [7440-39-3]^ 40.7 ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:41 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 0G10027 EPA 6010D 07/13/20 14:41 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 0G10027 EPA 6010D 07/13/20 14:41 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 0G10029 EPA 6020B 07/15/20 13:48 RLF Vanadium [7440-62-2]^ 1.75 J ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:41 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 0G10027 EPA 6010D 07/13/20 14:41 JDH Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]A 4.0 ug/L 1 0.80 2.0 OG11003 EPA 8260D 07/11/20 16:58 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.3 1 5.00 107 % 75-125 OG11003 EPA 8260D 0711112016:58 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-Field Blank Lab Sample ID:CD10010-11 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 14:30 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13026 EPA 8260D 07/13/20 23:09 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13026 EPA 8260D 07/13/20 23:09 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13026 EPA 8260D 07/13/20 23:09 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13026 EPA 8260D 07/13/20 23:09 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13026 EPA 8260D 07/13/20 23:09 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13026 EPA 8260D 07/13/20 23:09 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13026 EPA 8260D 07/13/20 23:09 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13026 EPA 8260D 07/13/20 23:09 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13026 EPA 8260D 07/13/20 23:09 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 38 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-Field Blank Lab Sample ID:CD10010-11 Received: 07/09/20 11:56 Matrix: Ground Water Sampled:07/08/20 14:30 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: Darren Cox 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 OG13026 EPA 8260D 07/13/20 23:09 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 92 % 53-136 OG13026 EPA 6260D 07113120 23:09 REF Dlbromofluoromethane 43 1 50.0 86 % 67-129 OG13026 EPA 6260D 07113120 23:09 REF Toluene-c48 44 1 50.0 89 % 59-134 OG13026 EPA 6260D 07113120 23:09 REF Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed gy Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 OG14036 EPA 7470A 07/16/20 18:35 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 By Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 OG10029 EPA 6020B 07/15/20 13:53 RLF Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Barium [7440-39-3]^ 1.10 U ug/L 1 1.10 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 OG10027 EPA 6010D 07/13/20 14:43 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 OG10027 EPA 6010D 07/13/20 14:43 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Manganese [7439-96-5]^ 1.50 U ug/L 1 1.50 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Nickel[7440-02-O]^ 2.20 U ug/L 1 2.20 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Thallium [7440-28-O]^ 0.220 U ug/L 2 0.220 2.00 OG10029 EPA 6020B 07/15/20 13:53 RLF Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 OG10027 EPA 6010D 07/13/20 14:43 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 OG10027 EPA 6010D 07/13/20 14:43 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 OG11003 EPA 8260D 07/11/20 17:24 KKW Results DF Soike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes 5.3 1 5.00 105 % 75-125 OG11003 EPA 8260D 0711112017:24 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 60 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 4116-Trip Blank Lab Sample ID: CD10010-12 Received: 07/09/20 11:56 Matrix: Water Sampled:07/07/20 08:20 Work Order: CD10010 Project: GFL Env - High Point, LLC Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analvte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 OG13027 EPA 8260D 07/14/20 07:39 REF 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 OG13027 EPA 8260D 07/14/20 07:39 REF 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 OG13027 EPA 8260D 07/14/20 07:39 REF Acetone [67-64-1]A 10 U ug/L 1 10 20 OG13027 EPA 8260D 07/14/20 07:39 REF Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 OG13027 EPA 8260D 07/14/20 07:39 REF Benzene[71-43-2]A 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 OG13027 EPA 8260D 07/14/20 07:39 REF Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 OG13027 EPA 8260D 07/14/20 07:39 REF Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Styrene [100-42-5]A 0.11 U ug/L 1 0.11 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 OG13027 EPA 8260D 07/14/20 07:39 REF QV-01 Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 OG13027 EPA 8260D 07/14/20 07:39 REF FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 40 Of 60 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 4116-Trip Blank Lab Sample ID:CD10010-12 Received: 07/09/20 11:56 Matrix: Water Sampled:07/07/20 08:20 Work Order: CD10010 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 Ay Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 0G13027 EPA 8260D 07/14/20 07:39 REF Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 46 1 50.0 91 % 53-136 OG13027 EPA 6260D 07114120 07.39 REF Dibromofluoromethane 42 1 50.0 85 % 67-129 OG13027 EPA 6260D 07114120 07.39 REF Toluene-d8 44 1 50.0 89 % 59-134 OG13027 EPA 6260D 07114120 07.39 REF Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes 1,4-Dioxane [123-91-1]^ 0.80 U ug/L 1 0.80 2.0 0G11003 EPA 8260D 07/11/20 17:49 KKW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 5.4 1 5.00 107 % 75-125 OG11003 EPA 8260D 0711112017:49 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 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 0613O26 - EPA 5030E MS Blank (OG13026-BLK3) Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 16:56 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 46 u91L 50.0 93 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 42 Of 60 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 0613O26 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OG13026-BLK3) Continued Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 16:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 42 u91L 50.0 63 67-129 Toluene-& 44 u91L 50.0 67 59-134 LCS (OG13026-BSI) Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 15:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 85 75-133 Benzene 19 1.0 ug/L 20.0 97 80-134 Chlorobenzene 20 1.0 ug/L 20.0 99 80-120 Toluene 20 1.0 ug/L 20.0 98 71-120 Trichloroethene 19 1.0 ug/L 20.0 95 74-120 Matrix Spike (OG13026-MS1) Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 15:29 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 15 1.0 ug/L 20.0 0.21 U 77 75-133 Benzene 19 1.0 ug/L 20.0 2.1 84 80-134 Chlorobenzene 17 1.0 ug/L 20.0 0.17 U 86 80-120 Toluene 17 1.0 ug/L 20.0 0.50 84 71-120 Trichloroethene 17 1.0 ug/L 20.0 0.15 U 83 74-120 Matrix Spike Dup (OG13026-MSD1) Prepared: 07/13/2020 13:07 Analyzed: 07/13/2020 15:58 Source: CD10010-02 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch OG13O27 - EPA 5030E MS Result 15 20 18 18 17 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 2.1 0.17 U 0.50 0.15 U %REC 76 90 88 87 86 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 1 5 2 3 4 RPD Limit Notes 20 17 16 17 22 Blank (OG13027-BLK3) Prepared: 07/13/2020 13:12 Analyzed: 07/14/2020 06:14 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 43 Of 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OG13O27 - EPA 5030E MS - Continued Blank (OG13027-BLK3) Continued Prepared: 07/13/2020 13:12 Analyzed: 07/14/2020 06:14 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 46 u91L 50.0 91 53-136 Dibromofluoromethane 43 u91L 50.0 86 67-129 Toluene-d8 45 u91L 50.0 89 59-134 LCS (OG13027-BS1) Prepared: 07/13/2020 13:12 Analyzed: 07/14/2020 04:21 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 89 75-133 Benzene 20 1.0 ug/L 20.0 100 80-134 Chlorobenzene 21 1.0 ug/L 20.0 103 80-120 Toluene 20 1.0 ug/L 20.0 99 71-120 Trichloroethene 20 1.0 ug/L 20.0 98 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 44 of 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch OG13O27 - EPA 5030E MS - Continued Matrix Spike (OG33027-MS1) Prepared: 07/13/2020 13:12 Analyzed: 07/14/2020 04:49 Source: CD11356-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 92 75-133 Benzene 20 1.0 ug/L 20.0 0.15 U 100 80-134 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 103 80-120 Toluene 20 1.0 ug/L 20.0 0.14 U 101 71-120 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 97 74-120 Matrix Spike Dup (OG13027-MSD1) Prepared: 07/13/2020 13:12 Analyzed: 07/14/2020 05:17 Source: CD11356-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 17 1.0 ug/L 20.0 0.21 U 86 75-133 6 20 Benzene 20 1.0 ug/L 20.0 0.15 U 98 80-134 2 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 2 16 Toluene 19 1.0 ug/L 20.0 0.14 U 97 71-120 4 17 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 97 74-120 0.2 22 Batch OG14O29 - EPA 50308 MS Blank (OG14029-BLK3) Prepared: 07/14/2020 10:16 Analyzed: 07/15/2020 06:31 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L 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 45 Of 60 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 0614O29 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (OG14029-BLK3) Continued Prepared: 07/14/2020 10:16 Analyzed: 07/15/2020 06:31 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 46 u91L 50.0 91 53-136 Dibromofluoromethane 44 u91L 50.0 67 67-129 Toluene-d8 44 u91L 50.0 89 59-134 LCS (OG14029-BSI) Prepared: 07/14/2020 10:16 Analyzed: 07/15/2020 04:37 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 90 75-133 Benzene 21 1.0 ug/L 20.0 106 80-134 Chlorobenzene 21 1.0 ug/L 20.0 107 80-120 Toluene 21 1.0 ug/L 20.0 103 71-120 Trichloroethene 20 1.0 ug/L 20.0 102 74-120 Matrix Spike (OG14029-MS1) Prepared: 07/14/2020 10:16 Analyzed: 07/15/2020 05:05 Source: CD31356-04 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 94 75-133 Benzene 22 1.0 ug/L 20.0 0.15 U 108 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 107 71-120 Trichloroethene 21 1.0 ug/L 20.0 0.15 U 106 74-120 Matrix Spike Dup (OG14029-MSD1) Prepared: 07/14/2020 10:16 Analyzed: 07/15/2020 05:34 Source: CD11356-04 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 18 1.0 ug/L 20.0 0.21 U 90 75-133 4 20 Benzene 21 1.0 ug/L 20.0 0.15 U 103 80-134 5 17 Chlorobenzene 21 1.0 ug/L 20.0 0.17 U 105 80-120 4 16 Toluene 20 1.0 ug/L 20.0 0.14 U 102 71-120 4 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 100 74-120 5 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 46 Of 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch OG14036 - EPA 7470A Blank (OG14036-BLK3) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:36 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 (OG14036-BSI) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:38 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.87 0.200 ug/L 5.00 97 80-120 Matrix Spike (OG14036-MS1) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:44 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.88 0.200 ug/L 5.00 0.150 U 98 75-125 Matrix Spike Dup (OG14036-MSD1) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:46 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.77 0.200 ug/L 5.00 0.150 U 95 75-125 2 25 Post Spike (OG14036-PSI) Prepared: 07/14/2020 11:57 Analyzed: 07/16/2020 17:48 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.18 0.200 ug/L 5.00 0.0160 103 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 0610027 - EPA 3005A Blank (OG10027-BLK3) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:39 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 (OG10027-BSI) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:45 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 47 of GO (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OG1OO27 - EPA 3OO5A - Continued LCS (OG10027-BS3) Continued Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:45 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 172 10.0 ug/L 200 86 80-120 Barium 188 10.0 ug/L 200 94 80-120 Beryllium 17.5 1.00 ug/L 20.0 88 80-120 Cadmium 18.5 1.00 ug/L 20.0 93 80-120 Chromium 175 10.0 ug/L 200 87 80-120 Cobalt 180 10.0 ug/L 200 90 80-120 Copper 173 10.0 ug/L 200 86 80-120 Iron 940 50.0 ug/L 1000 94 80-120 Lead 183 10.0 ug/L 200 92 80-120 Manganese 178 10.0 ug/L 200 89 80-120 Nickel 185 10.0 ug/L 200 93 80-120 Selenium 178 10.0 ug/L 200 89 80-120 Silver 179 10.0 ug/L 200 90 80-120 Vanadium 175 10.0 ug/L 200 88 80-120 Zinc 191 10.0 ug/L 200 96 80-120 Matrix Spike (OG10027-MSS) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:47 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 172 10.0 ug/L 200 7.60 U 86 75-125 Barium 1100 10.0 ug/L 200 935 85 75-125 Beryllium 17.6 1.00 ug/L 20.0 0.160 U 88 75-125 Cadmium 17.4 1.00 ug/L 20.0 0.360 U 87 75-125 Chromium 186 10.0 ug/L 200 8.88 88 75-125 Cobalt 182 10.0 ug/L 200 9.72 86 75-125 Copper 174 10.0 ug/L 200 1.60 U 87 75-125 Iron 36500 50.0 ug/L 1000 36100 42 75-125 QM-07 Lead 180 10.0 ug/L 200 3.10 U 90 75-125 Manganese 14300 10.0 ug/L 200 14200 10 75-125 QM-07 Nickel 181 10.0 ug/L 200 2.20 U 90 75-125 Selenium 182 10.0 ug/L 200 6.20 U 91 75-125 Silver 185 10.0 ug/L 200 1.90 U 93 75-125 Vanadium 183 10.0 ug/L 200 1.98 90 75-125 Zinc 187 10.0 ug/L 200 4.40 U 93 75-125 Matrix Spike Dup (OG10027-MSD1) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:50 111 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 178 10.0 ug/L 200 7.60 U 89 75-125 3 20 Barium 1100 10.0 ug/L 200 935 80 75-125 0.8 20 Beryllium 17.6 1.00 ug/L 20.0 0.160 U 88 75-125 0.06 20 Cadmium 17.4 1.00 ug/L 20.0 0.360 U 87 75-125 0.2 20 Chromium 185 10.0 ug/L 200 8.88 88 75-125 0.5 20 Cobalt 185 10.0 ug/L 200 9.72 88 75-125 2 20 Copper 174 10.0 ug/L 200 1.60 U 87 75-125 0.3 20 Iron 36100 50.0 ug/L 1000 36100 5 75-125 1 20 QM-07 Lead 183 10.0 ug/L 200 3.10 U 92 75-125 2 20 Manganese 14100 10.0 ug/L 200 14200 NR 75-125 1 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 48 Of 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch OG1OO27 - EPA 3OO5A - Continued Matrix Spike Dup (OG30027-MSD1) Continued Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:50 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 183 10.0 ug/L 200 2.20 U 91 75-125 1 20 Selenium 174 10.0 ug/L 200 6.20 U 87 75-125 4 20 Silver 184 10.0 ug/L 200 1.90 U 92 75-125 0.8 20 Vanadium 182 10.0 ug/L 200 1.98 90 75-125 0.6 20 Zinc 189 10.0 ug/L 200 4.40 U 95 75-125 1 20 Post Spike (OG10027-PSI) Prepared: 07/10/2020 13:19 Analyzed: 07/13/2020 13:52 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.184 0.0100 mg/L 0.200 -0.00516 92 80-120 Barium 1.10 0.0100 mg/L 0.200 0.935 84 80-120 Beryllium 0.0184 0.00100 mg/L 0.0200 -0.000246 92 80-120 Cadmium 0.0178 0.00100 mg/L 0.0200 -0.000860 89 80-120 Chromium 0.192 0.0100 mg/L 0.200 0.00888 92 80-120 Cobalt 0.190 0.0100 mg/L 0.200 0.00972 90 80-120 Copper 0.182 0.0100 mg/L 0.200 -0.00350 91 80-120 Iron 36.2 0.0500 mg/L 1.00 36.1 11 80-120 QM-08 Lead 0.187 0.0100 mg/L 0.200 0.00287 92 80-120 Manganese 14.1 0.0100 mg/L 0.200 14.2 NR 80-120 QM-08 Nickel 0.188 0.0100 mg/L 0.200 0.00132 93 80-120 Selenium 0.194 0.0100 mg/L 0.200 -0.000509 97 80-120 Silver 0.200 0.0100 mg/L 0.200 -0.00289 100 80-120 Vanadium 0.189 0.0100 mg/L 0.200 0.00198 93 80-120 Zinc 0.196 0.0100 mg/L 0.200 0.000906 97 80-120 Batch OG1OO29 - EPA 3O6OA Blank (OG10029-BLK3) Prepared: 07/1O/2020 14:11 Analyzed: 07/15/2020 12:23 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 0.370 U 1.00 ug/L Thallium 0.110 U 1.00 ug/L LCS (OG30029-BS3) Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 21.1 1.00 ug/L 20.0 105 80-120 Thallium 20.9 1.00 ug/L 20.0 104 80-120 Matrix Spike (OG10029-MSS) Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:31 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 44.1 2.00 ug/L 40.0 0.740 U 110 75-125 Thallium 39.5 2.00 ug/L 40.0 0.220 U 99 75-125 Matrix Spike Dup (OG10029-MSD1) Prepared: 07/1O/2020 14:11 Analyzed: 07/15/2020 12:36 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 49 of GO (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 061OO29 - EPA 3O6OA - Continued Matrix Spike Dup (OG30029-MSD1) Continued Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:36 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 44.4 2.00 ug/L 40.0 0.740 U 111 75-125 0.8 20 Thallium 39.6 2.00 ug/L 40.0 0.220 U 99 75-125 0.4 20 Post Spike (OG10029-PSI) Prepared: 07/10/2020 14:11 Analyzed: 07/15/2020 12:40 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 14.6 1.00 ug/L 20.0 0.105 72 75-125 QM-08 Thallium 13.1 1.00 ug/L 20.0 0.00589 66 75-125 QM-08 Batch OH1OO22 - EPA 3OO5A Blank (OH10022-BLK1) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:07 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Chromium 1.40 U 10.0 ug/L Blank (OH10022-BLK2) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 1.40 U 10.0 ug/L LCS (OH10022-BSI) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:16 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 192 10.0 ug/L 200 96 80-120 Matrix Spike (OH10022-MS1) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:19 Source: CD12104-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 189 10.0 ug/L 200 1.40 U 95 75-125 Matrix Spike Dup (01-110022-MS131) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:21 Source: CD12104-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 189 10.0 ug/L 200 1.40 U 95 75-125 0.01 20 Post Spike (OH10022-PS1) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:23 Source: CD12104-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 0.194 0.0100 mg/L 0.200 0.00100 97 80-120 Metals (Dissolved) by EPA 6000/7000 Series Methods - Quality Control Batch OH1OO22 - EPA 3OO5A FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 50 Of 6O (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (Dissolved) by EPA 6000/7000 Series Methods - Quality Control Batch OH1OO22 - EPA 3OO5A - Continued Blank (OH10022-BLKI) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 1.40 U 10.0 ug/L Blank (OH10022-BLK2) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 1.40 U 10.0 ug/L LCS (OH10022-BSI) Prepared: 08/1O/2020 10:15 Analyzed: 08/12/2020 10:16 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 192 10.0 ug/L 200 96 80-120 Matrix Spike (OH10022-MS1) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:19 Source: CD12104-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 189 10.0 ug/L 200 1.40 U 95 75-125 Matrix Spike Dup (OH10022-MSD1) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:21 Source: CD12104-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 189 10.0 ug/L 200 1.40 U 95 75-125 0.01 20 Post Spike (OH10022-PSI) Prepared: 08/10/2020 10:15 Analyzed: 08/12/2020 10:23 Source: CD12104-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chromium 0.194 0.0100 mg/L 0.200 0.00100 97 80-120 Classical Chemistry Parameters - Quality Control Batch 061OO13 - NO PREP Blank (OG10013-BLK3) Prepared: 07/10/2020 09:00 Analyzed: 07/10/2020 23:09 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 (OG10013-BS3) Prepared: 07/10/2020 09:00 Analyzed: 07/10/2020 23:26 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 49000 5000 ug/L 50000 99 90-110 Sulfate as SO4 48000 5000 ug/L 50000 95 90-110 Matrix Spike (OG10013-MSS) Prepared: 07/10/2020 09:00 Analyzed: 07/11/2020 00:37 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 260000 20000 ug/L 80000 180000 106 90-110 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) 1 Of 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 0610013 - NO PREP - Continued Matrix Spike (OG10013-MS1) Continued Prepared: 07/10/2020 09:00 Analyzed: 07/11/2020 00:37 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 93000 20000 ug/L 80000 20000 91 90-110 Matrix Spike (OG10013-MS2) Prepared: 07/10/2020 09:00 Analyzed: 07/11/2020 01:30 Source: CD08765-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 510000 100000 ug/L 400000 130000 96 90-110 Sulfate as SO4 1600000 100000 ug/L 400000 1300000 87 90-110 QM-07 Batch OG1302B - NO PREP Blank (OG13028-BLK3) Prepared & Analyzed: 07/13/2020 18:33 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 (OG13028-BS1) Prepared & Analyzed: 07/13/2020 18:33 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 (OG13028-DUPl) Prepared & Analyzed: 07/13/2020 18:33 Source: CDIOOIO-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 1700000 100000 ug/L 1700000 0.2 20 Duplicate (OG13028-DUP2) Prepared & Analyzed: 07/13/2020 18:33 Source: CD08590-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 410000 50000 ug/L 400000 3 20 Batch OG15005 - NO PREP Blank (OG15005-BLK3) Prepared: 07/15/2020 08:32 Analyzed: 07/15/2020 16:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 2200 U 5000 ug/L LCS (OG35005-BSI) Prepared: 07/15/2020 08:32 Analyzed: 07/15/2020 17:09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 49000 5000 ug/L 50000 98 90-110 Matrix Spike (OG15005-MS1) Prepared: 07/15/2020 08:32 Analyzed: 07/15/2020 17:44 Source: CD08654-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 28000 5000 ug/L 20000 7500 100 90-110 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 52 Of 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 0615005 - NO PREP - Continued Matrix Spike (OG35005-MS2) Prepared: 07/15/2020 08:32 Analyzed: 07/15/2020 19:12 Source: CD09848-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Chloride 660000 50000 ug/L 200000 460000 99 90-110 Matrix Spike Dup (OG15005-MSD1) Prepared: 07/15/2020 08:32 Analyzed: 07/15/2020 18:02 Source: CDO8654-01 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Chloride 27000 5000 ug/L 20000 7500 98 90-110 1 10 Batch OG16005 - NO PREP Blank (OG16005-BLK3) Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:46 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Total Alkalinity as CaCO3 14000 U 15000 ug/L LCS (OG16005-BS1) Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:47 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Total Alkalinity as CaCO3 100 15 mg/L 100 101 80-120 Matrix Spike (OG36005-MS1) Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:48 Source: CD10010-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Total Alkalinity as CaCO3 1600000 150000 ug/L 400000 1300000 90 80-120 Matrix Spike Dup (OG36005-MSD3) Prepared: 07/16/2020 08:33 Analyzed: 07/16/2020 10:49 Source: CDIOOIO-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Total Alkalinity as CaCO3 1500000 150000 ug/L 400000 1300000 74 80-120 4 25 QM-07 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 04G11003 - EPA 5030E MS Blank (OG13003-BLK3) Prepared: 07/11/2020 00:00 Analyzed: 07/11/2020 12:17 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 5.6 ug/L 5.00 112 75-125 LCS (OG13003-BS1) Prepared: 07/11/2020 00:00 Analyzed: 07/11/2020 11:26 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 102 80-133 Toluene-& 5.6 ug/L 5.00 111 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 53 Of 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 0611003 - EPA 5030E MS - Continued Matrix Spike (OG13003-MS1) Prepared: 07/11/2020 00:00 Analyzed: 07/11/2020 21:13 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 89 2.0 ug/L 25.0 71 72 80-133 QM-07 Toluene-d8 5.3 u91L 5.00 105 75-125 Matrix Spike Dup (OG11003-MSD1) Prepared: 07/11/2020 00:00 Analyzed: 07/11/2020 21:39 Source: CD10010-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 90 2.0 ug/L 25.0 71 75 80-133 0.7 19 QM-07 Toluene-d8 5.4 u91L 5.00 108 75-125 Batch OG13O36 - EPA 50308 MS Blank (OG13036-BLK3) Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 10:58 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 6.0 u91L 5.00 119 75-125 LCS (OG13036-BS1) Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 10:07 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 26 2.0 ug/L 25.0 102 80-133 Toluene-d8 5.8 u91L 5.00 115 75-125 Matrix Spike (OG13036-MS1) Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 20:02 Source: AD04531-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 49 2.0 ug/L 25.0 22 104 80-133 Toluene-d8 6.6 u91L 5.00 131 75-125 QS-03 Matrix Spike Dup (OG13036-MSD1) Prepared: 07/13/2020 00:00 Analyzed: 07/13/2020 20:28 Source: AD04531-03 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 49 2.0 ug/L 25.0 22 105 80-133 0.3 19 Toluene-d8 6.5 u91L 5.00 130 75-125 QS-03 Batch OG14O47 - EPA 50308 MS Blank (OG14047-BLK3) Prepared: 07/14/2020 00:00 Analyzed: 07/14/2020 14:43 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-d8 4.9 u91L 5.00 96 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 54 Of 60 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch OG14O47 - EPA 5030E MS - Continued LCS (OG14047-BS3) Prepared: 07/14/2020 00:00 Analyzed: 07/14/2020 13:52 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 25 2.0 ug/L 25.0 102 80-133 Toluene-d8 5.0 u91L 5.00 99 75-125 Matrix Spike (OG14047-MS1) Prepared: 07/14/2020 00:00 Analyzed: 07/14/2020 17:16 Source: AD04531-03RE1 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 52 2.0 ug/L 25.0 23 114 80-133 Toluene-d8 4.6 u91L 5.00 92 75-125 Matrix Spike Dup (OG14047-MSD1) Prepared: 07/14/2020 00:00 Analyzed: 07/14/2020 17:42 Source: AD04531-03RE3 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 52 2.0 ug/L 25.0 23 115 80-133 0.2 19 Toluene-d8 4.6 u91L 5.00 93 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 55 Of 60 (� �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. LG-01 Sample filtered in laboratory. 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). QS-03 Surrogate recovery 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 56 of 60 E 8 a � 9 y = y Z m a CQL0 3 d 1- c rI) W m a C) d 3 �. 4} 4J C a @ O c m LO z ❑ J C 1 a ttl m U ooc elemnS x x x x x X X y 6Hs x x x x x x x �Ob9ZW5 SC1200eVMA404Z'OlCA]+;llu)GV 0 x x X x X x x m m p7 'aS•Vs'Rd'IN'a3'NJ'P:1'P'J'a8'a9`sy'6y x x X c P U �Z'A`Il'aS'a5'PS 'qd'I�ury'a�'n�'rJ'o�'pa'a�'ag'sy'6V X X X X X X }{ a � QI WI5 OQ9Z9`P VU8B X9 x X X X X X X X x~ d09Z8' L xipueddy aWS V N O y 6 cc_ co ca CO m 00 oa I- I%- o C r U r � Ym � C, 0 a � a � Y Y RI m � m T1 u a q m o W .zi o Q E E L ig n _.1 LL,Ci O4 O N U m� 4:5 ,:� QL 0- a it m (Z ^�-- ti m e.1 n1 fa 1� N ? � G r e \ y 5 J to ,o ti 4 R 0 fn iCS ¢ �+ E CD IO 40 CD CDlieW U3 CJD 03 m r- r- r- r r- r r• T- E - r — — r - - r — r r- r n _ `?. � E= F=E-Q f.1 h° N Ul m • C' a m U U m c mrl :z � G m m � m m N � Q U O �U 0. a a `o u 6 m d T cc �lr E m E m E � 0 0 o LL V 1 Z 6 QO d0 m E - u ir r 0 L v � 0 1� Q m. E /) m c a m n a J n m a` m m a m m Q Page 57 of 6 bo US U I c� cc O U ul cc ❑ 0 7 U 1L O Z Q 2 U U) W cc O Q cc O m a Z O R cc LLI U) Z O U H Z W 2 Z MO it 7 Z W U m =5 Z"3 u 'D N C. Y w E Q Q w D x � O V w CD O d m E� ag z co ❑ a o U Q 2 U N Q m o o 1 C S O N O U a W — n � ro p m m C O E � m z m m Zw r m aw+ c com Q :� OOE S ar m m Q � C M1J m w m1 m m m a z y y ¢ ¢ z E Oorezrys S 5 GO 2 s0j_'oocoptg7 'Z'[16$A1N711a*v 9 v � o = w uZ'n'Il'613 �wS`'aS,Vcl`IN•��:�J•�3'P�'88'¢9`ab•'�V c 0 V E E E _o � u7'n`Il'sS`ss`9S o � m � w o b OI VVIS man PePus" h, 0 OZO' G Y?VuuddV 004ZIR V — C � O C 'J E 40 at � r� — m W � m Q C S 11. 1 rIj y ll �ry r O N fl 5 x Q (j t� N E u a m m m E w O 3 L) ill- 2 m m 0 m 3 w o � - � { z z IL i a G O i. ' Q - � ` O n \FVl EL` a a cc ca y cn m a o � m E p m 4 a1 uj o If) 00 ❑ Q v ce)co o J w Z Q cc L V Q, y v ['Nye �Upp LL m �C ca yN � ¢ m l[ [? w CL E w r a.^ `m m o d m E z r r a a` uai E Z o m h Y/ �' E Page 58 of 60 U 4 U H (D fn m �n iu Sample Preservation Verification ENCO Cary � orn Work Order: CD10010 Project: GFL Env - High Point. LLC Client: Golder Associates, Inc. (G0007) Project #: 19116638.102 Logged in: 09-Jul-20 12:09 Logged By: Rachel Ann Y nis Preservation Check Performed By: DatelTime: 1 -110010-01 Cont Type, Pres (pH) Requirement pH Checked 1 In Control pH Adjusted Date/Time Adiusted Reagent UsedlComments A 250mLP+HNO3 <2 Y N 1 NA Y /' INI NA CD10010-02 Cont YP Type Pres (pH) Requirement pH Checked / In Control Datefrime pH Adjusted Adjusted Reagent UsedlComments 6 250mLP+HNO3 <2 Y I N I NA Y I N 1' NA C 250mLP+HNO3 <2 Y :1 N / NA Y / NA CD10010-03 Cont yp Type Pres (pH) Requirement pH Checked / in Control DateMme PH Adjusted Adiusted Reagent UsedlComments A 250mLP+HNO3 <2 Y I N / NA Y / / NA C D 10010-04 Cont Type Pres (pH) Requirement pH Checked 1 In Control pH Adjusted Date/Time Adjusted Reagent UsedlComments A 250mLP+1-11\103 <2 Y N! NA Y 1' N/ NA a 010010-05 Cant Type Pres (pH) Requirement pH Checked ! In Control pH Adjusted Date/Time Adjusted Reagent UsedlComments A 250mLP+HNO3 <2 Y 1 N I NA Y I N! NA CD10010-06 Cont Type y Pres (pH) pH Checked ! Requirement In Control DatefTime PH Adjusted Adjusted Reagent UsedlComments A 250mLP+HNO3 <2 Y N 1 NA Y P NA CD10010-07 Cont Type Pres (pH) Requirement pH Checked 1 In Control pH Adjusted DatefTime Adjusted Reagent UsedlComments A 250mLP+HNQ3 <2 YJ N/ NA Y I N! NA C D10010-08 Cont YP Type Pres (pH) Requirement pH Checked f In Control Date/Time PH Adjusted Adjusted Reagent UsedlComments A 250mLP+HNO3 <2 Y- I N I NA Y I N 1 NA C:lelmntlPrintlwko_PreservationCheck. rpt Page 59 of 60 Sample Preservation Verification _ ENCO Cary Work Order: CD10010 Project: GFL Env - High Point, LLC Client: Golder Associates, Inc. (GO007) Project #: 19116638,102 Logged In: 09-Jul-20 12:09 Preservation Check Performed By: C D10010-09 Logged By Rachel Ann Y`�nishl r Dateffime: 14 C, l 2: o � �J Cant Type Pres (pH) Requirement pH Checked / In Control pH Adjusted DateMme Adiusted Reagent Used/Comments A 250mLP+HNO3 <2 Y N. / NA Y N NA CD1o010-10 Cont Type Pres (pH) pH Checked / pH Adjusted DatefTime Reagent Used/Comments Requirement In Control Adjusted A 250mLP+HNO3 <2 Y 1 N/ NA Y I N P NA CD10010-11 Cont Type Pres (pH) Requirement pH Checked / in Control pH Adjusted Date(fime Adjusted Reagent Used/Corments A 250mLP+HNO3 1 2 Y N/ NA Y! N 1 NA Rea ent Name ID 1 2 u Rea ent Name ID 3 4 Rea ent Name ID 5 6 pH Strip ID: PH Strips COF0555 Page 60 ClelmntlPrilrLlwr\U_r-reservatront-,neCK.rpt of 60 GOLDER ASSOCIATES NC, INC. GOLDER QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 4 Project Name: High Point C&D Landfill Project Reference Number. 20137881.102 Sampling Event Date: July 7-8, 2020 Review Date: July 21, 2020 Report #: CD10009, CD10010 Initials: DC QA/QC: RK 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 19116638.102 > should be 20137881.102 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 4 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 Continuing Calibration Verification (CCV) exhibited a high bias for Vinyl acetate; however, this analyte was not detected in the associated samples. The spike recoveries of Acetone, Chloroform, Dibromomethane, and 1,4-Dioxane were outside the control limits for the MS and/or MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. y The spike recoveries of Iron, Manganese, Antimony, Selenium, and Thallium were outside the control limits for the MS, MSD, and/or Post Digestion spike samples. The QC batches were approved based on acceptable LCS recovery of these elements. The spike recoveries of Alkalinity and Sulfate were outside the control limits for the MS and /or MSD samples. The QC batches were approved based on acceptable LCS recovery of these elements. The 8260D surrogate spike recovery of Toluene-d8 exceeded acceptance criteria for the MS and MSD samples. The samples were approved based on acceptable recovery of the other surrogate standards. 4.0 ANALYTE LISTS/METHODS GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 4 .,%� GOLDER 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. 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 (10x), AMW-2 (5x) ➢ Total Alkalinity as CaCO3 — MW-2 (1Ox), MW-6 (1 Ox), MW-7S (2x), MW-8 (5x), AMW-1 (5x), AMW-2 (5x) ➢ Chloride: MW-2, MW-6 (4x), MW-8 (2x), AMW-2 (2x) ➢ Sulfate: MW-1, MW-2, MW-6 (4x) MW-8 (2x), AMW-2 (2x) ➢ Total Dissolved Solids: MW-2, 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 Drinking Water Standards/GWPS in wells, or field/equipment/trip blanks, or above applicable surface water standards in surface water points ➢ 1,4-Dioxane (NC 2L = 3 uq/L) o MW-2 @ 71 ug/L ➢ Benzene (NC 2L = 1 uq/L) o MW-5 @ 8.9 ug/L o MW-2 @ 2.1 ug/L o MW-6 @ 240 ug/L o MW-6 @ 3.0 ug/L o MW-7S @ 3.5 ug/L o AMW-2 @ 1.7 ug/L o MW-8 @ 34 ug/L o AMW-1 @ 25 ug/L ➢ Barium (NC 2L = 700 uq/L) o AMW-2 @ 110 ug/L 0 MW-2 @ 935 ug/L GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 4 of 4 ➢ Chromium (NC 2L = 10 ug/L) o MW-8 @ 12.3 ug/L ➢ Cobalt (NC 2L IMAC = 1 ug/L) o MW-2 @ 9.72 ug/L (J) o MW-6 @ 4.77 ug/L (J) o MW-8 @ 9.29 ug/L (J) o AMW-1 @ 8.92 ug/L (J) o AMW-2 @ 10.9 ug/L ➢ Iron (NC 2L = 300 ug/L) o MW-2 @ 36100 ug/L o MW-3 @ 355 ug/L o MW-4S @ 575 ug/L o MW-5 @ 33600 ug/L o MW-6 @ 8510 ug/L o MW-8 @ 4250 ug/L o AMW-1 @ 7760 ug/L o AMW-2 @ 4340 ug/L ➢ Manganese (NC 2L = 50 ug/L) o MW-2 @ 14200 ug/L o MW-3 @ 59.5 ug/L o MW-4 @ 94.3 ug/L o MW-5 @ 1050 ug/L 4 COLDER o MW-6 @ 5740 ug/L o MW-8 @ 20800 ug/L o AMW-1 @ 6630 ug/L o AMW-2 @ 2850 ug/L ➢ Total Dissolved Solids (NC 2L = 500 mg/L) o MW-2 @ 1700 mg/L o MW-6 @ 2300 mg/L o MW-8 @ 1000 mg/L o AMW-1 @ 730 mg/L o AMW-2 @ 1200 mg/L ➢ Vanadium (NC 2L IMAC = 0.3 u /L o MW-1 @ 1.57 ug/L (J) o MW-2 @ 1.98 ug/L (J) o MW-4S @ 1.40 ug/L (J) o MW-6 @ 2.93 ug/L (J) o MW-7S @ 8.72 ug/L (J) ➢ 1.4-Dioxane (Human Health = 0.35 u /L o SW-3 @ 6.6 ug/L - upstream o SW-4 @ 4.0 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). ➢ Mercury — MW-1 @ 0.229 ug/L (J) first time detection (upgradient well) DC Other report issues/Communications with laboratory/etc.: y Benzene detection in 4116-MW6 and 4116-MW-2 was confirmed. Selenium reported by 6010 and 6020 for Report CD10009 — contacted lab on 8/7/2020 for revision. Asked for rerun of chromium at MW-8 and dissolved chromium if they had sample available. Chromium concentration was confirmed, dissolved sample also analyzed. � GOLDER golder.com