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Home My WebLink About8003_Rowan_MSWLF_CDLF_Aug2022GW_FID1747657_20221118i pENR USE ONLY [:)Paper Report ❑Electronic Data -Email CD (data loaded: Yes / No Doc/Event #: NC DENR I IEnvironmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Golder Associates NC, Inc. (on behalf of Rowan County) Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: Darren Cox Phone: 336-852-4903 E-mail: darren.cox@wsp.com NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24, 2006) Rowan County Landfills 789 Campbell Road August 15 - 17, 2022, (Active MSW and Closed C&D) Woodleaf, NC 27054 80 03 .1600 and .500 October 5, 2022 Environmental Status: (Check all that apply) Initial/Background Monitoring ❑X Detection Monitoring ❑X Assessment Monitoring ❑ Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells ❑ Groundwater monitoring data from private water supply wells ❑ Leachate monitoring data Surface water monitoring data ❑ Methane gas monitoring data Corrective action data (specify) Other(specify) Notification attached? No. No groundwater or surface water standards were exceeded. X Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. ❑ Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. Rachel P. Kirkman, PG Director and Geologist 336-852-4903 Facility Representative Name (Print) Title t I — ( �, (Area Code) Telephone Number Q �� i Q /l a—rV&2022 Affix NC Licensed/ Professional Geologist Seal Signature Date Golder Associates NC, Inc., 5B Oak Branch Drive, Greensboro, NC 27407 Facility Representative Address C-2862 NtlCA,� SEAL • s i NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 GOLDER REPORT SECOND SEMI-ANNUAL 2022 WATER QUALITY MONITORING REPORT Active Rowan County Landfill, Permit No. 80-03 Rowan County, North Carolina Submitted to: Craig Powers, Director of Engineering and Environmental Services 1102 N Long Street Extension East Spencer, NC 28039 Submitted by: Golder Associates NC, Inc. 5B Oak Branch Drive, Greensboro, North Carolina, USA 27407 +1 336 852 4903 November 18, 2022 Distribution List Jeff Boyd, Landfill Manager, 789 Campbell Road, Woodleaf, NC 27054, (704) 278-2211 jeff.boyd@rowancountync.gov (Electronic Copy) GL21456818.001 Mike Plummer, PE, HDR, 440 South Church Street, Suite 1000 Charlotte, NC 28202, (704) 338 6843, michael.plummer@hdrinc.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. NNSI) GOLDER November 18, 2022 Executive Summary GL21456818.001 On behalf of Rowan County Department of Environmental Management (Rowan County), Golder Associates NC, Inc., a member of WSP (Golder), is submitting the enclosed Water Quality Monitoring Report, which documents the results of the August 15 - 18, 2022, compliance monitoring event and October 5, 2022, verification event. The facility consists of an active municipal solid waste (MSW) landfill and a closed construction and demolition debris (C&D) landfill, each with a permitted monitoring network of wells and surface water locations. At the C&D facility, and as approved by NC DEQ on January 4, 2021, wells MW-18R and MW-19 were replaced on May 13 - 14, 2021 with MW-18R2 and MW-19R, respectively. Based on the August 2021 monitoring results, an Assessment Monitoring Work Plan (AWMP) was submitted to NC DEQ on January 18, 2022 and approved on January 20, 2022. The AWMP stated that MW-18R2 would be sampled and analyzed for NC Appendix II parameters, and that a pore -water sample (PWS-1) would be collected annually from a nearby stream downgradient of the well and analyzed for NC Appendix I VOCs. The August 2022 event was the second assessment monitoring event for MW-18R2 and no additional Appendix II parameters were detected at this location. At the MSW facility, two inorganic constituents (cobalt and vanadium) were detected at estimated concentrations above their respective groundwater standards (i.e., NC 2L Standards) in samples from one or more downgradient monitoring wells during this event. As these are estimated (i.e., non - quantifiable) concentrations below the method reporting limits, per 15A NCAC 02L .0202 (b)(1), no regulatory actions are required for estimated values below the reporting limits (a.k.a. Practical Quantitation Limits or PQLs) that are above groundwater standards. Per 15A NCAC 02L .0202 (b)(3), concentrations of naturally occurring substances that exceed the NC 2L Groundwater Standards are exempt (i.e., not a violation of the standard). Rowan County monitors groundwater at the closed C&D landfill for parameters listed in 15A NCAC 13B .0544 of the NCSWMR. Cobalt and chromium were detected at a concentrations above the groundwater standards at MW-18R2. Indicator parameters iron, manganese and total dissolved solids and sulfate were also detected above their respective NC 2L Standards during this event at MW-18R2. One Appendix I organic constituent (benzene) was detected in the samples from MW-18R2 and MW- 19R at a concentration above the groundwater protection standard. The benzene concentration in MW- 19R was confirmed during verification sampling on October 5, 2022. Also, 1,4-dioxane was also analyzed per the May 30, 2018, NC DEQ memorandum; this constituent was detected at MW-18R2 and MW-19R at concentrations above the groundwater standard. This constituent is not part of the facility permit -required testing. Copper was detected above the groundwater standard in upstream monitoring point SW- 2 and downstream monitoring point MW-3. Lead was detected above the surface water standard in upstream monitoring point SW-2. Additional inorganic or organic constituents were not detected at samples from the surface water sampling locations above the respective surface water standards during this sampling event. Constituent concentrations reported for the leachate samples collected during this sampling event are typical for leachate at this facility. NNSI) GOLDER November 18, 2022 GL21456818.001 Based on these results, Rowan County Environmental Services will continue monitoring the uppermost aquifer beneath the MSW facility in accordance with the requirements of the Detection Monitoring Program as outlined in Title 15A NCAC 13B .1633. Per the AMWP approved by the NC DEQ for the closed C&D Landfill, assessment monitoring will continue at C&D monitoring well MW-18R2 as specified in the AMWP. Based on the confirmed benzene exceedance at MW-19R at the compliance boundary, the County will submit an addendum to the January 2022 Assessment Monitoring Work Plan for the C&D Landfill within 90 days per Title 15A NCAC 13B. 0545.(a)(2) to address the new above - standard detections at MW-18R2 and MW-19R. NNSI) GOLDER iv November 18, 2022 Table of Contents GL21456818.001 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..................................................................3 2.3 February 2022 Groundwater and Surface Water Monitoring Event ....................................................4 2.4 April 2022 Verification Event................................................................................................................4 2.5 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 4.1.1 MSW Facility...................................................................................................................................5 4.1.2 C&D Facility.................................................................................................................................... 5 4.1.3 Surface Water.................................................................................................................................6 5.0 CONCLUSIONS..............................................................................................................................................6 6.0 REFERENCES................................................................................................................................................6 TABLES Table 1 Summary of Historical Groundwater Elevation Data in Monitoring Wells Table 2 Summary of Estimated Horizontal Flow Velocities Table 3 Summary of Well Construction Information Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill 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 Summary of Detected Leachate Parameters Table 9 Summary of Detected Constituents in Groundwater for the C&D Landfill Table 10 Summary of C&D Landfill Field Parameters \Xtil) GOLDER v November 18, 2022 DRAWING Drawing 1 Groundwater Contour Map, August 15, 2022 APPENDICES GL21456818.001 Appendix A Groundwater and Surface Water Sampling Logs Appendix B August 2022 and October 2022 Groundwater and Surface Water Certificate -Of -Analysis, Chain -Of -Custodies, and Laboratory Data Review \Ntil) GOLDER vi November 18, 2022 GL21456818.001 1.0 INTRODUCTION This report summarizes the monitoring results from the August 15 - 18, water quality monitoring event and the October 5, 2022, verification event at the Rowan County Landfill located in Rowan County, North Carolina (NC) and operated under the NC Solid Waste Permit No. 80-03. An active municipal solid waste (MSW) landfill, operated by Rowan County Environmental Services, and a closed construction and demolition (C&D) landfill are located within the property boundary. Rowan County (the County) has owned and operated the MSW and C&D landfill under permit No. 80-03 since 1989. The C&D landfill located on site ceased accepting waste on June 30, 2008. The County monitors water quality (i.e., groundwater, surface water, and leachate) at the MSW landfill semi-annually in accordance with Title 15A of the North Carolina Administrative Code (NCAC) Subchapter 13B .1633. The County also monitors water quality (i.e., groundwater and surface water) at the C&D landfill semi-annually in accordance with 15A NCAC 13B .0545; the C&D facility closed in 2008. 1.1 Site Description and Background The location of the facility is shown on the inlay on Drawing 1. As presented, the Rowan County solid waste facility is located approximately 1.5 miles southeast of the town of Woodleaf on Campbell Road in Rowan County, NC. The landfill facility covers approximately 375 acres of land and is bounded to the north by Campbell Road, to the south by Second Creek, and to the east and west by wooded, residential and agricultural properties. Surrounding land use is primarily rural residential, agricultural, or undeveloped and wooded. Access to the facility is via a driveway off Campbell Road. As discussed, the facility is comprised of an active Subtitle D MSW landfill unit, a closed C&D landfill unit, and a closed land clearing inert debris (LCID) unit (Drawing 1). Topographic elevations at the facility range from approximately 766 feet above mean sea level (AMSL) east of the existing scale house to approximately 635 feet AMSL at the edge of Second Creek along the southern property boundary. Stormwater drainage from the landfill and surrounding areas is directed by one of the two main drainage features toward Second Creek, which flows from the southwest to the northeast (S&ME October 2005). 1.2 Compliance Monitoring History Groundwater monitoring at the MSW facility was initiated in December 1989 under the Detection Monitoring Program. Currently, water quality monitoring is performed semi-annually at the MSW facility in accordance with the approved Water Quality Monitoring Plan (WQMP) and the NC Solid Waste Management Regulations (NCSWMR). The active MSW landfill monitoring network is currently comprised of 15 active monitoring wells (MW-1, MW-7, MW-9, MW-11, MW-12, MW-13, MW-16, MW-20, MW-23, MW-23A, MW-24R, MW-25, MW-26, MW-27, and MW-28R), which monitor the uppermost aquifer beneath the facility. Monitoring well MW-6, MW 27A, and MW-28 are monitored during each semi-annual sampling event for water levels only. Three monitoring wells (i.e., MW-17, MW-18R2, and MW-19R) monitor the C&D landfill located to the east of the active MSW landfill. Following two consecutive Assessment Monitoring event without a detection of NC Appendix 11 VOCs, the MSW facility reverted to the Detection Monitoring Program during the August 2018 monitoring event as governed by 15A NCAC 13B .1633 of the NCSWMR, after receiving approval from the NC DEQ. The County was previously in Assessment Monitoring due to detections of tetrachloroethene and trichlorofluoromethane in samples from monitoring well MW-28. On July 11, \\til) GOLDER November 18. 2022 GL21456818.001 2017, MW-28R was installed as a replacement well for MW-28 closer to the waste unit, as part of an Alternate Source Demonstration (ASD) and as approved in correspondence from NC DEQ dated December 13, 2016. After the completion of a second sampling event of MW-28R on November 1, 2017, a request was made to the NC DEQ to revert to detection monitoring after two consecutive monitoring events without the detection of volatile organic compounds (VOCs) in the replacement monitoring well MW-28R. The request to revert back to detection monitoring for the first semi- annual 2018 water quality monitoring event was approved by NC DEQ on June 5, 2018. At the C&D facility, on May 13 - 14, 2021, MW-18R2 and MW-19R were installed as replacement wells for MW-18R and MW-19 as approved in correspondence with NC DEQ dated January 8, 2021. Benzene was detected in the sample from MW-18R2 at quantifiable concentrations above the NC 2L Standard during the August 2021 sampling event. Based on the August 2021 monitoring results, an Assessment Monitoring Work Plan (AWMP) was submitted to NC DEQ on January 18, 2022 and approved on January 20, 2022. The AWMP stated that MW-18R2 would be sampled and analyzed for NC Appendix II parameters annually, and that a pore -water sample (PWS-1) would be collected annually from a nearby stream downgradient of the well and analyzed for NC Appendix I VOCs. The January 2022 event was the first assessment monitoring event for MW-18R2. Five surface water locations (SW-1 through SW-5) are also sampled; SW-5 monitors surface water adjacent to the C&D landfill, the other four surface water locations monitor surface water surrounding the active MSW landfill; SW-1 is the upstream monitoring report. A French drain is also sampled semi-annually to monitor a groundwater discharge point located underneath the Phase III landfill unit at the active MSW landfill. The locations of monitoring points within the current monitoring network are shown on Drawing 1. 1.3 Hydrogeologic Setting Geologically, the facility is located within the Charlotte Belt of the Piedmont Physiographic Province of NC (NCGS 1985). The Charlotte Belt is composed of Precambrian and Paleozoic bedrock, which is dominantly plutonic with plutons ranging from granite to gabbro. The oldest rocks in the Charlotte Belt are mafic gneisses, amphibolites, metagabbros and metavolcanic rocks, with lesser amounts of biotite gneiss, granitic gneiss, mica schist, quartzite, and ultramafic rocks. Mica schists and mica hornblende gneisses locally have been intruded by granite. The rocks underlying the facility consist of mostly diorite, gabbro, and granite (NCGS 1985). The uppermost groundwater beneath the facility is present in a shallow, unconfined aquifer comprised of partially weathered, fractured, meta -volcanic rock. Groundwater occurs at depths ranging from near ground surface in valleys to more than 100 feet below grade on steep hills (S&ME October 2005). Depth -to -water measurements obtained during the February 2022 sampling event and summarized in Table 1 were used to prepare a groundwater surface contour map presented as an overlay on Drawing 1. As presented, groundwater in the uppermost aquifer beneath the facility generally flows to the southwest toward Second Creek. The groundwater surface contour map and interpreted flow directions are consistent with previously submitted groundwater surface contour maps for this facility. Based on the August 2022 groundwater surface contour map, the hydraulic gradient in the shallow aquifer underlying the facility averaged approximately 0.036. The average effective porosity of the shallow aquifer is estimated at 0.26 (S&ME October 2005). \Xtil) GOLDER 2 November 18, 2022 GL21456818.001 Using the above values, the estimated rate of groundwater flow for the uppermost aquifer beneath the facility was calculated using the following modified Darcy's Law equation: Vgw= (K i)/ne where Vgw = average linear velocity (feet/year), K = hydraulic conductivity (feet/year), i = horizontal hydraulic gradient, and ne = effective porosity. As presented on Table 2, the average estimated linear groundwater flow velocity under the waste management units ranges from approximately 166 feet/year in the MSW area to approximately 529 feet/year in the C&D area, which is generally consistent with previous estimates. The linear velocity equation above makes the simplified assumptions of a homogeneous and isotropic aquifer. Therefore, this equation represents an estimated average value for the uppermost aquifer and does not account for heterogeneous and/or anisotropic conditions that are likely present in the uppermost aquifer at the facility. 2.0 FIELD PROGRAM, MONITORING RESULTS, AND DISCUSSION Field activities conducted as part of the August 2022 sampling event are discussed in the following sections. 2.1 Visual Inspection Program In order to determine if a potential release has occurred at the earliest possible time, the visual inspection program is used by sampling personnel at the Rowan County landfills. This program includes physical indicators such as potential water table mounding beneath the waste management unit, physical examination of any stresses in biological communities, visible signs of leachate migration (i.e., leachate seeps), unexplained changes in soil characteristics, and any other change to the environment due to the waste management unit in the vicinity of monitoring locations. During this compliance monitoring event, no physical indicators of a potential release were observed in the vicinity of the waste management areas by the sampling personnel. 2.2 Well Network and Groundwater Elevation Measurements As presented in Section 1.3 of this report, the current groundwater monitoring network at the Rowan County landfills (i.e., the active MSW and the closed C&D landfill) consists of 17 groundwater monitoring wells (i.e., 14 monitor groundwater at the MSW landfill and 3 monitor groundwater at the C&D landfill). Monitoring well construction information is summarized in Table 3 and the well locations are shown on Drawing 1. The network of monitoring wells was constructed to target the preferential flow path for groundwater underlying waste disposal areas. Water quality was monitored during the August 2022 water quality monitoring event (WQME) in accordance with the revised WQMP, which was approved by NC DEQ as part of the Life of Site Permit Renewal in May 2021. Based on the WQMP monitoring wells MW-9 and MW-16 are the MSW landfill's background wells and are located hydraulically upgradient of the waste disposal area. Monitoring wells MW-1, MW-7, MW-11, MW 12, MW-13, MW-20, MW-23, MW-24R, MW-25, MW-26, MW-27, and MW-28R are located downgradient or side gradient of the waste disposal area and represent the facility's downgradient compliance wells. The C&D unit is monitored by upgradient well MW-17 and downgradient compliance wells MW-18R2 and MW-19R. Depth -to -water measurements were recorded to the nearest 0.01 foot prior to initiating groundwater purging and sampling activities. The monitoring point summary and respective water level elevations for this event along with historical data are presented in Table 1. \\til) GOLDER November 18, 2022 GL21456818.001 2.3 February 2022 Groundwater and Surface Water Monitoring Event Personnel from Golder visited the facility on August 15 — 18, 2022, to purge and sample the 17 compliance groundwater monitoring wells. Samples were also collected for surface water monitoring locations, French Drain and the facility's leachate pond. The groundwater monitoring wells were purged and sampled using dedicated bladder pumps and micro -purge procedures. Measurements of pH, specific conductivity, dissolved oxygen (DO), oxidation-reduction potential (ORP), temperature, turbidity, and depth -to -water were recorded each time the flow -cell volume was replaced depending on the purge rate. In general, the purge rate for each well was matched to the yield of the monitoring well, as determined by continuously monitoring the depth to water, up to a maximum purge rate of 300 milliliters per minute. Micro -purging was continued until stabilization was indicated by the field parameters. Prior to sampling, the laboratory -supplied sample containers used to collect the water samples detailed above were prepared. Each sample container was labelled with the sample identification number, sampling personnel, date and time of sample collection, project name and number, and requested chemical analyses. The micro -purge groundwater samples were collected directly from the dedicated bladder pump discharge lines in the labelled, laboratory -supplied, pre -preserved sample containers after purging was completed based on stabilization of the field parameters. After collection, the sample containers were placed in a cooler on ice, under chain -of -custody control. Copies of the sampling logs detailing the sample ID, the personnel collecting the samples, the sampling location, the sampling equipment, the sampling method, general field observations, and field parameters are presented in Appendix A. The surface water samples, and the French drain groundwater samples were collected by lowering the sample containers directly into the surface water flow with the container opening facing away from the stream flow, taking care to prevent the overflow of the sample containers and to minimize sample induced turbidity. If necessary (i.e., if access to the sample point was limited), a stainless - steel dipper is lowered into the surface water flow and filled. The water sample collected in the dipper is then transferred directly to the provided appropriate sample containers. The leachate samples were collected directly from the leachate pond. Measurements of pH, conductivity, temperature, turbidity, DO, and ORP were recorded during the collection of the surface water samples directly from the point of sampling, and measurements of pH, specific conductivity, and temperature were recorded for the leachate sample from a separate sampling container. 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 sample ID, sampling personnel, sampling equipment, sampling location, sampling method, field observations, and water -quality measurements. 2.4 October 2022 Verification Event Golder personnel visited the facility on October 5, 2022, to re -sample MW-19R to verify the concentration of benzene, which was detected at MW-19R during the August 2022 event. Samples were collected utilizing techniques as described above. After collection, the samples were placed in a cooler on ice under chain -of -custody control. As presented, copies of the sampling logs are included in Appendix A. Included on the logs is a description of the sampling equipment, sampling method, field observations, location, and water quality measurements. \\til) GOLDER November 18, 2022 GL21456818.001 2.5 Laboratory Analysis Program The groundwater, surface water, and leachate samples collected in February 2022, from the active MSW landfill were delivered by courier to Environmental Conservation Laboratories, Inc. (ENCO) of Cary, NC under chain -of -custody control for analysis of NC Appendix I constituents, the leachate sample was also analyzed for 1,4 dioxane. Groundwater samples collected from the closed C&D landfill in August and October 2022 were analyzed for the listed NC Appendix I constituents plus 1,4-dioxane, tetrahydrofuran, and the additional required C&D parameters under NCAC 1313.0544; select NC Appendix II constituents detected in the February 2022 sampling event were also analyzed for MW-18R2 per the AMWP. Surface water samples were analyzed for NC Appendix I, SW-5 is last analyzed for 1,4-dioxane. The samples were received at the laboratory on August 19, 2022 in good condition and properly preserved. 3.0 LABORATORY AND FIELD QA/QC A field blank was collected by Golder personnel as part of the August 2022 groundwater sampling event. In addition to the field blank, a laboratory -prepared trip blank accompanied the VOC sample containers for the sampling event to and from the laboratory. ENCO analyzed the field blank and method blanks for the same constituents as the groundwater samples, and the trip blank for NC Appendix I VOCs. A review of the laboratory data was performed by Golder (included in Appendix B). No data qualification was necessary based on our data review. 4.0 DATA EVALUATION The results of the data evaluations are presented in the following sections. 4.1 North Carolina Groundwater and Surface Water Quality Standard Comparisons 4.1.1 MSW Facility Two inorganic constituents (cobalt and vanadium) were detected at estimated concentrations above their respective groundwater standards (i.e., NC 2L Standards) in samples from one or more downgradient monitoring wells at the MSW landfill during this event. As these are estimated (i.e., non -quantifiable) concentrations below the method reporting limits, per 15A NCAC 02L .0202 (b)(1), no regulatory actions are required for estimated values below the reporting limits (a.k.a. POLs) that are above groundwater standards. Per 15A NCAC 02L .0202 (b)(3), concentrations of naturally occurring substances that exceed the NC 2L Groundwater Standards are exempt (i.e., not a violation of the standard). 4.1.2 C&D Facility Two NC Appendix I metals (cobalt and chromium) were detected at quantifiable concentrations above the groundwater standards at MW-18R2 during this event. Indicator parameters iron, manganese, sulfate and total dissolved solids (TDS) were also detected above their respective NC 2L Standards during this event at downgradient well MW-18R2. One NC Appendix I organic constituent (benzene) was detected in the samples from MW-18R2 and MW-19R at concentrations above the groundwater protection standard during this event. The benzene concentration in MW-19R was confirmed during verification sampling on October 5, 2022. Also, 1,4-dioxane was analyzed per the May 30, 2018, memorandum and concentrations at MW-18R2 and MW-19R are above the groundwater standard and generally consistent with recent concentrations; this constituent is not part of the facility permit -required testing. \\til) GOLDER November 18, 2022 GL21456818.001 4.1.3 Surface Water Copper was detected above the groundwater standard in upstream monitoring point SW- 2 and downstream monitoring point MW-3. Lead was detected above the surface water standard in upstream monitoring point SW-2. Additional inorganic or organic constituents were not detected at samples from the surface water sampling locations above the respective surface water standards during this sampling event. 5.0 CONCLUSIONS Based on these results, Rowan County Environmental Services will continue monitoring the uppermost aquifer beneath this facility in accordance with the requirements of the Detection Monitoring Program as outlined in Title 15A NCAC 13B .1633 for the MSW. Per the AMWP submitted to NC DEQ for the closed C&D Landfill, assessment monitoring will continue at monitoring well MW-18R2 for Appendix I constituents and any detected Appendix II constituents. Based on the confirmed benzene exceedance at MW-19R at the compliance boundary, the County will submit an addendum to the January 2022 Assessment Monitoring Work Plan for the C&D Landfill within 90 days per Title 15A NCAC 13B. 0545.(a)(2) to address the new above -standard detections at MW-18R2 and MW-19R. 6.0 REFERENCES Resolve (Resolve Environmental Services, P.A.), December 2004. Second Semi -Annual 2004 Appendix I Groundwater Monitoring Event —Rowan County Sanitary Landfill, Campbell Road, Woodleaf, North Carolina. 20 pp. Resolve (Resolve Environmental Services, P.A.), July 2005. First 2005 Semi -Annual Groundwater Monitoring —Rowan County Sanitary Landfill, Woodleaf, NC and Annual 2005 Groundwater Monitoring —Rowan County Closed Sanitary Landfill. 5 pp. S&ME October 2005. Water Quality Monitoring Plan —Rowan County Landfill, Woodleaf, NC. 28 PP. S&ME 2005. Design Hydrogeologic Study —Rowan County Landfill —Phase III. 30 pp. NCGS (North Carolina Geologic Survey), 1985. Geologic Map of North Carolina. Scale 1:500,000 \\til) GOLDER November 18, 2022 Signature Page Golder Associates NC, Inc. Darren Cox Rachel P. Kirkman, PG Associate Consultant, Environmental Scientist Director, Geologist Engineering Lic. No. C-2862/Geology Lic. No. C-399 GL21456818.001 Golder Associates NC, Inc. is a licensed user of the Golder trademark, and an associated operating entity. https://golderassociates.sharepoint.com/sites/163204/project files/5 technical work/phase 101 active 2nd sa 2022/200 deliv/250 final issued/80-03_20221118-docx \\till GOLDER 7 November 18, 2022 GL21456818.001 Tables XXNI) GOLDER November 2022 Table 1 Project No. GL21456818 Summary of Historical Static Groundwater Elevation Data Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Well ID MW-1 MW-6 MW-7 MW-9 MW-11 MW-12 MW-13 MW-16 MW-17 MW-18R MW-18R2 MW-19 MW-19R MW-20 MW-23 TOC Elevation 717.50 668.15 663.14 738.13 683.27 685.88 696.33 752.69 755.36 661.39 646.24 653.45 647.55 717.00 697.25 (ft AMSL) Date Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW 11/05/04 704.67 12.83 658.73 9.42 646.43 16.71 712.75 25.38 673.97 9.30 678.72 7.16 682.58 13.75 705.06 47.63 NA NA NA NA - - NA NA -- -- NA NA NA NA 05/16/05 700.88 16.62 664.48 3.67 647.49 15.65 711.99 26.14 674.41 8.86 679.14 6.74 683.12 13.21 705.44 47.25 NA NA NA NA - - NA NA -- -- NA NA NA NA 12/30/05 700.38 17.12 660.39 7.76 646.42 16.72 708.06 30.07 674.75 8.52 682.68 3.20 685.13 11.20 704.50 48.19 704.26 51.10 NA NA - - 643.77 9.68 -- -- 687.85 29.15 664.72 32.53 09/25/06 698.18 19.32 658.88 9.27 645.79 17.35 706.73 31.40 674.26 9.01 678.18 7.70 682.21 14.12 704.49 48.20 703.97 51.39 NA NA - - 642.25 11.20 -- -- 687.26 29.74 664.57 32.68 01/30/07 698.60 18.9 660.47 7.68 646.78 16.36 708.80 29.33 674.84 8.43 679.19 6.69 682.71 13.62 704.27 48.42 703.52 51.84 NA NA - - 643.74 9.71 -- -- 687.36 29.64 665.05 32.2 07/11/07 697.24 20.26 659.63 8.52 645.95 17.19 708.14 29.99 674.33 8.94 678.02 7.86 682.12 14.21 704.79 47.90 705.36 50.00 NA NA - - 641.95 11.50 -- -- 687.30 29.70 664.92 32.33 08/06/07 NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 639.96 21.43 - -- NA NA -- -- NA NA NA NA 01/16/08 694.64 22.86 657.45 10.70 644.55 18.59 702.17 35.96 674.26 9.01 675.97 9.91 681.80 14.53 703.45 49.24 703.37 51.99 640.15 21.24 - - 641.32 12.13 -- -- 684.89 32.11 662.71 34.54 07/29/08 693.84 23.66 657.15 11.00 645.04 18.10 702.48 35.65 672.75 10.52 676.97 8.91 681.41 14.92 702.70 49.99 702.88 52.48 639.79 21.60 - - 640.33 13.12 -- -- 684.98 32.02 663.06 34.19 01/21/09 697.74 19.76 660.17 7.98 646.40 16.74 703.32 34.81 674.59 8.68 678.64 7.24 681.75 14.58 702.31 50.38 703.27 52.09 641.83 19.56 - - 643.03 10.42 -- -- 684.54 32.46 663.42 33.83 07/14/09 698.93 18.57 660.85 7.30 647.14 16.00 707.44 30.69 674.33 8.94 678.13 7.75 681.76 14.57 704.01 48.68 705.75 49.61 641.94 19.45 - - 642.17 11.28 -- -- 686.41 30.59 665.60 31.65 01/06/10 701.74 15.76 663.83 4.32 647.62 15.52 707.85 30.28 674.88 8.39 679.19 6.69 682.28 14.05 704.58 48.11 705.86 49.50 642.81 18.58 - - 644.02 9.43 -- -- 686.09 30.91 664.54 32.71 07/20/10 698.96 18.54 661.50 6.65 646.91 16.23 709.72 28.41 677.34 5.93 678.23 7.65 682.08 14.25 705.76 46.93 706.98 48.38 642.19 19.20 - - 642.73 10.72 -- -- 687.62 29.38 665.17 32.08 01/31/11 696.81 20.69 659.91 8.24 646.20 16.94 706.31 31.82 674.61 8.66 678.71 7.17 682.02 14.31 705.20 47.49 706.10 49.26 642.08 19.31 - - 643.51 9.94 -- -- 685.94 31.06 664.29 32.96 07/18/11 697.67 19.83 659.92 8.23 646.14 17.00 707.37 30.76 674.47 8.80 678.09 7.79 681.78 14.55 705.06 47.63 706.13 49.23 642.00 19.39 - - 642.74 10.71 -- -- 686.29 30.71 664.53 32.72 01/24/12 698.09 19.41 660.84 7.31 646.64 16.50 707.11 31.02 674.80 8.47 678.63 7.25 681.91 14.42 709.41 43.28 705.83 49.53 642.55 18.84 - - 643.70 9.75 -- -- 685.20 31.80 664.09 33.16 07/17/12 696.16 21.34 659.01 9.14 646.33 16.81 706.92 31.21 674.36 8.91 677.68 8.20 681.50 14.83 704.44 48.25 706.06 49.30 641.84 19.55 - - 642.27 11.18 -- -- 685.63 31.37 664.15 33.10 01/22/13 693.67 23.83 658.28 9.87 642.79 20.35 701.77 36.36 674.81 8.46 678.45 7.43 681.46 14.87 703.89 48.80 705.75 49.61 643.07 18.32 - - 643.66 9.79 -- -- <679.98 >37.02 662.79 34.46 07/15/13 697.62 19.88 663.96 4.19 647.52 15.62 706.81 31.32 674.85 8.42 678.34 7.54 681.70 14.63 704.75 47.94 706.52 48.84 643.11 18.28 - - 643.64 9.81 -- -- 684.95 32.05 664.84 32.41 01/27/14 698.16 19.34 661.05 7.10 647.25 15.89 706.68 31.45 675.10 8.17 678.84 7.04 681.94 14.39 704.54 48.15 706.19 49.17 643.67 17.72 - - 644.06 9.39 -- -- <680.39 >36.61 664.85 32.40 07/14/14 697.54 19.96 661.92 6.23 647.29 15.85 709.66 28.47 674.77 8.50 678.22 7.66 682.01 14.32 706.16 46.53 707.38 47.98 642.43 18.96 - - 642.16 11.29 -- -- 685.95 31.05 665.97 31.28 01/20/15 694.75 22.75 658.60 9.55 646.44 16.70 704.37 33.76 674.97 8.30 678.67 7.21 681.87 14.46 705.24 47.45 706.22 49.14 642.29 19.10 - - 642.19 11.26 -- -- <685.01 >31.99 664.21 33.04 07/22/15 692.70 24.80 658.53 9.62 645.55 17.59 704.11 34.02 673.64 9.63 677.15 8.73 681.26 15.07 704.71 47.98 706.20 49.16 640.94 20.45 - - 640.84 12.61 -- -- <684.00 >33.00 664.00 33.25 01/12/16 699.83 17.67 663.86 4.29 648.58 14.56 706.46 31.67 674.53 8.74 679.18 6.70 681.45 14.88 704.62 48.07 706.20 49.16 644.35 17.04 - - 644.71 8.74 -- -- 683.50 33.50 664.46 32.79 08/01/16 694.65 22.85 658.96 9.19 645.84 17.30 706.42 31.71 674.31 8.96 677.59 8.29 681.64 14.69 705.69 47.00 706.57 48.79 641.47 19.92 - - 641.50 11.95 -- -- 683.40 33.60 664.13 33.12 01/17/17 692.72 24.78 658.46 9.69 646.06 17.08 702.25 35.88 674.89 8.38 678.41 7.47 681.68 14.65 704.77 47.92 706.02 49.34 641.64 19.75 - - 641.94 11.51 -- -- 681.92 35.08 663.05 34.20 07/24/17 696.26 21.24 661.51 6.64 646.87 16.27 705.50 32.63 674.79 8.48 677.98 7.90 681.64 14.69 704.45 48.24 706.33 49.03 642.43 18.96 - - 642.44 11.01 -- -- <684.80 >32.20 664.46 32.79 08/25/17 <694.62 >22.98 <694.52 -- <694.52 -- <694.52 -- <694.52 -- <694.52 -- <694.52 -- <694.52 -- <694.52 - -- -- - - - - -- -- 682.09 34.91 NA 02/20/18 695.66 21.84 659.50 8.65 647.48 15.66 702.62 35.51 675.26 8.01 678.92 6.96 681.88 14.45 704.37 48.32 706.29 49.07 643.78 17.61 - - 643.63 9.82 -- -- 681.68 35.32 663.75 33.50 08/08/18 698.77 18.73 659.94 8.21 647.50 15.64 707.87 30.26 675.02 8.25 678.53 7.35 681.78 14.55 705.62 47.07 707.11 48.25 643.94 17.45 - - 643.17 10.28 -- -- 684.77 32.23 664.53 32.72 01/15/19 704.55 12.95 666.00 2.15 649.45 13.69 714.84 23.29 675.92 7.35 679.98 5.90 682.87 13.46 706.65 46.04 707.99 47.37 646.50 14.89 - - 646.06 7.39 -- -- 683.78 33.22 665.95 31.30 08/13/19 697.94 19.56 659.75 8.40 646.51 16.63 711.19 26.94 674.88 8.39 678.26 7.62 682.38 13.95 707.62 45.07 706.69 48.67 643.41 17.98 - - 643.51 9.94 -- -- 685.55 31.45 665.04 32.21 01/13/20 702.48 15.02 NM NM 647.56 15.58 710.98 27.15 676.24 7.03 680.18 5.70 682.98 13.35 706.42 46.27 706.07 49.29 646.92 14.47 - - 646.50 6.95 -- -- 684.80 32.20 664.20 33.05 08/10/20 699.20 18.30 662.41 5.74 647.19 15.95 713.29 24.84 675.17 8.10 678.74 7.14 682.68 13.65 707.93 44.76 707.91 47.45 643.93 17.46 - - 644.21 9.24 -- -- 685.97 31.03 665.94 31.31 01/26/21 703.89 13.61 663.39 4.76 648.27 14.87 716.08 22.05 675.53 7.74 679.68 6.20 683.13 13.20 708.09 44.60 707.45 47.91 645.28 16.11 - - 645.05 8.40 -- -- 684.85 32.15 665.80 31.45 08/24/21 697.57 19.93 661.81 6.34 647.34 15.80 710.97 27.16 674.88 8.39 678.53 7.35 682.55 13.78 707.88 44.81 706.56 48.80 643.49 17.90 637.32 8.92 644.14 9.31 637.01 10.54 685.92 31.08 664.70 32.55 02/09/22 696.83 20.67 661.37 6.78 646.51 16.63 707.85 30.28 675.17 8.10 678.98 6.90 682.33 14.00 706.21 46.48 705.66 49.70 643.76 17.63 637.45 8.79 644.93 8.52 637.50 10.05 683.55 33.45 663.40 33.85 08/15/22 695.00 22.50 659.05 9.10 645.42 17.72 707.61 30.52 674.67 8.60 677.77 8.11 681.74 14.59 705.68 47.01 706.88 48.48 642.17 19.22 636.69 9.55 642.94 10.51 636.52 11.03 682.01 34.99 663.74 33.51 MEAN 697.90 19.60 660.45 7.70 646.62 16.49 707.62 30.51 674.79 8.48 678.57 7.31 682.14 14.19 705.30 47.39 705.92 49.44 642.77 18.62 637.39 8.86 643.20 10.25 637.26 10.30 685.07 31.93 664.43 32.82 MAXIMUM 704.67 24.80 666.00 11.00 649.45 20.35 716.08 36.36 677.34 10.52 682.68 9.91 685.13 15.07 709.41 50.38 707.99 52.48 646.92 21.60 637.45 8.92 646.50 13.12 637.50 10.54 687.85 35.32 665.97 34.54 MINIMUM 692.70 12.83 657.15 2.15 642.79 13.69 701.77 22.05 672.75 5.93 675.97 3.20 681.26 11.20 702.31 43.28 702.88 47.37 639.79 14.47 637.32 8.79 640.33 6.95 637.01 10.05 681.68 29.15 662.71 31.28 Notes: AMSL = Above Mean Sea Level NA = Not Available NM = Not Measured TOC = Top of Well Casing MW-3, MW-4, MW-5 and MW-10 are decommissioned monitoring wells and data are not included in this table. MW-18 was decomissioned and replaced by MW-18R after the July 2007 sampling event. MW-24 was decomissioned and replaaced by MW-24R after the January 2011 sampling event. MW-25, MW-26, MW-27, MW-27A, and MW-28 were installed prior to the January 2013 sampling event to monitor the Phase IV expansion. MW-21 and MW-22 were decommissioned after the July 2013 sampling event. MW-28R was installed 7-11-2017. MW-18R2 and MW-19R were installed in May 2021 as replacement wells for MW-18R and MW-19, respectively. MW-29A, MW-30, MW-31, MW-32, MW-32A, MW-33, MW-33A, MW-34, and MW-34A are related to the Phase V expansion. \Ntill GOLDER Page 1 of November 2022 Table 1 Project No. GL21456818 Summary of Historical Static Groundwater Elevation Data Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Well ID MW-23A MW-24R MW-25 MW-26 MW-27 MW-27A MW-28 MW-28R MW-29A MW-30 MW-31 MW-32 MW-32A MW-33 MW-34 MW-34A TOC Elevation 696.91 717.10 707.46 697.30 663.90 664.02 682.06 685.26 660.87 656.15 670.12 666.16 665.70 683.19 704.75 704.61 (ft AMSL) Date Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW Elevation DTW 11/05/04 NA NA NA -- NA -- NA -- NA -- NA -- NA - NI -- -- - -- -- - -- -- - -- -- - - -- -- - -- -- -- - -- -- - 12/30/05 661.70 35.21 NA - NA -- NA - NA - NA -- NA - NI -- - - -- -- - - -- - -- -- - - -- -- -- - - - - 01/30/07 665.08 31.83 NA - NA -- NA - NA - NA -- NA - NI -- - - -- -- - - -- - -- -- - - -- -- -- - - - - 08/06/07 NA -- NA - NA -- NA - NA - NA -- NA - NI -- - - -- -- - - - - -- -- - - -- -- -- - - - - 07/29/08 662.72 34.19 NA - NA -- NA - NA - NA -- NA - NI -- - - -- -- - - - - -- -- - - -- -- -- - - - - 07/14/09 664.59 32.32 NA - NA -- NA - NA - NA -- NA - NI -- - - -- -- - - - - -- -- - - -- -- -- - - - - 07/20/10 665.21 31.70 NA - NA -- NA - NA - NA -- NA - NI -- - - -- -- - - - - -- -- - - -- -- -- - - - - 07/18/11 664.54 32.37 681.72 35.78 NA -- NA - NA - NA -- NA - NI -- - - -- -- - - - - -- -- - - -- -- -- - - - - 07/17/12 664.16 32.75 681.29 36.21 NA -- NA -- NA - NA -- NA -- NI -- - - -- -- - - - - -- -- - - -- -- -- - 01/22/13 662.82 34.09 680.64 36.86 632.88 35.27 627.43 35.71 729.34 8.79 673.93 9.34 661.20 24.68 NI 24.68 - - -- -- - - - - -- -- - - -- -- - - 07/15/13 664.68 32.23 681.18 36.32 634.73 33.42 629.43 33.71 730.14 7.99 675.03 8.24 662.90 22.98 NI 22.98 - - -- -- - - - - -- -- - - -- -- - - 01/27/14 664.86 32.05 680.99 36.51 634.04 34.11 629.23 33.91 730.08 8.05 675.06 8.21 662.79 23.09 NI 23.09 - - -- -- - - - - -- -- - - -- -- - - 07/14/14 665.99 30.92 681.81 35.69 636.56 31.59 631.05 32.09 729.55 8.58 674.43 8.84 665.43 20.45 NI 20.45 - - -- -- - - - - -- -- - - -- -- - - -- NM -- 730.22 7.91 674.96 8.31 662.22 23.66 NI 23.66 - - - - -- -- - - -- -- - - 07/22/15 664.03 32.88 681.02 36.48 633.12 35.03 627.97 35.17 728.73 9.40 673.54 9.73 661.76 24.12 NI 24.12 - - -- -- - - - - -- -- - - -- -- - - 01/12/16 664.46 32.45 681.09 36.41 631.79 36.36 627.48 35.66 730.23 7.90 675.07 8.20 662.89 22.99 NI 22.99 - - -- -- - - - - -- -- - - -- -- - - 08/01/16 664.14 32.77 681.40 36.10 632.72 35.43 627.26 35.88 728.99 9.14 673.82 9.45 661.94 23.94 NI 23.94 - - -- -- - - - - -- -- - - -- -- - - 01/17/17 663.06 33.85 680.94 36.56 630.63 37.52 626.14 37.00 729.25 8.88 674.00 9.27 661.33 24.55 NI 24.55 - - -- -- - - - - -- -- - - -- -- - - 07/24/17 664.45 32.46 681.00 36.50 631.27 36.88 626.78 36.36 729.22 8.91 674.09 9.18 663.42 22.46 661.65 23.61 - - -- -- - - - - -- -- - - -- -- - - 08/25/17 NA -- -- -- -- -- 626.52 36.62 -- -- -- -- -- -- -- -- - - -- -- - - - - -- -- - - -- -- -- - 02/20/18 663.78 33.13 680.34 36.76 669.58 37.88 660.02 37.28 655.35 8.55 655.12 8.90 658.37 23.69 661.01 24.25 - - -- -- - - - - -- -- - - -- -- - - 08/08/18 663.47 33.44 680.69 36.41 670.75 36.71 660.88 36.42 655.20 8.70 655.00 9.02 658.64 23.42 661.59 23.67 - - -- -- - - - - -- -- - - -- -- - - 01/15/19 665.91 31.00 681.31 35.79 672.59 34.87 662.03 35.27 656.98 6.92 656.87 7.15 660.26 21.80 662.80 22.46 - - -- -- - - - - -- -- - - -- -- - - 08/13/19 665.06 31.85 682.36 34.74 672.96 34.50 662.53 34.77 654.88 9.02 654.67 9.35 658.84 23.22 662.31 22.95 - - -- -- - - - - -- -- - - -- -- - - 01/13/20 664.17 32.74 682.14 34.96 670.78 36.68 661.40 35.90 656.54 7.36 656.24 7.78 658.67 23.39 661.85 23.41 - - -- -- - - - - -- -- - - -- -- - - 08/11/20 665.90 31.01 682.75 34.35 673.11 34.35 662.91 34.39 655.95 7.95 655.72 8.30 659.69 22.37 663.03 22.23 - - -- -- - - - - -- -- - - -- -- - - 01/26/21 665.73 31.18 683.15 33.95 673.62 33.84 663.32 33.98 656.91 6.99 656.71 7.31 659.91 22.15 663.48 21.78 - - -- -- - - - - -- -- - - -- -- - - 08/24/21 664.76 32.15 683.21 33.89 673.42 34.04 663.00 34.30 655.52 8.38 655.32 8.70 658.25 23.81 662.42 22.84 - - -- -- - - - - -- -- - - -- -- - - 02/09/22 663.41 33.50 682.65 34.45 670.17 37.29 661.40 35.90 655.82 8.08 655.52 8.50 657.81 24.25 661.26 24.00 - - -- -- - - - - -- -- - - -- -- - - 08/15/22 663.73 33.18 682.05 35.05 669.35 38.11 661.49 35.81 655.00 8.90 654.69 9.33 657.93 24.13 661.50 23.76 645.01 15.86 641.46 14.69 653.97 16.15 656.42 9.74 642.50 23.20 659.99 23.20 667.13 37.62 666.99 37.62 MEAN 664.27 32.64 681.60 35.73 653.37 35.47 644,91 35,31 692.70 8.32 664.99 8.66 660.71 23.26 662.08 23.27 645.01 15.86 641.46 14.69 653.97 16.15 656.42 9.74 642.50 23.20 659.99 23.20 667.13 37.62 666.99 37.62 MAXIMUM 665.99 35.21 683.21 36.86 673.62 38.11 663.32 37.28 730.23 9.40 675.07 9.73 665.43 24.68 663.48 24.68 645.01 15.86 641.46 14.69 653.97 16.15 656.42 9.74 642.50 23.20 659.99 23.20 667.13 37.62 666.99 37.62 MINIMUM 661.70 30.92 680.34 33.89 630.63 31.59 626.14 32.09 654.88 6.92 654.67 7.15 657.81 20.45 661.01 20.45 645.01 15.86 641.46 14.69 653.97 1 16.15 656.42 9.74 642.50 23.20 659.99 23.20 667.13 37.62 666.99 37.62 Notes: AMSL = Above Mean Sea Level NA = Not Available NM = Not Measured TOC = Top of Well Casing MW-3, MW-4, MW-5 and MW-10 are decommissioned monitoring wells and data are not included in this table. MW-18 was decomissioned and replaced by MW-18R after the July 2007 sampling event. MW-24 was decomissioned and replaaced by MW-24R after the January 2011 sampling event. MW-25, MW-26, MW-27, MW-27A, and MW-28 were installed prior to the January 2013 sampling event to monitor the Phase IV expansion. MW-21 and MW-22 were decommissioned after the July 2013 sampling event. MW-28R installed 7-11-2017. MW-18R2 and MW-19R were installed in May 2021 as replacement wells for MW-18R and MW-19, respectively. MW-29A, MW-30, MW-31, MW-32, MW-32A, MW-33, MW-33A, MW-34, and MW-34A are related to the Phase V expansion. \Ntill GOLDER Page 2 or 2 November 2022 Table 2 Summary of Estimated Horizontal Flow Velocities Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit #80-03 Project No. GL21456818 August 2022 Gradient Calculation Gradient Segment Gradient Segment Horizontal Gradient Effective Porosity Hydraulic Velocity (V9w, Segment 9 Flow Direction Length feet g (feet) Elevations feet (feet) 1, feet ( ) n (e) Conductivity (K, feet/ ear Y ) cm/sec) i SW 2702 -------""""" 690 0.0185 0.26 0.002 147 640"""""------- /2 SSW 1718 -------"""""660 0.0233 0.26 0.002 185 i s SSW 902 700 0.0665 0.26 0.002 529 64 Notes: Horizontal velocities based on the modified Darcy equation V9W = Ki/ne, Values for K and ne were based on geometric average values taken from S&ME's October 2005 Design Hydrogeologic Report referenced in the text. XN%I) GOLDER Page 1 of 1 November 2022 Table 3 Summary of Monitoring Well Construction Information Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Well Identification Northing Easting Date of Construction Ground Surface EElevation (ft AMSL) TOC Elevation (k AMSL) Well Depth (k bgs) Well Diameter (inches) Screened Interval (k AMSL) Geology of Screened Interval Well Type MW-1 733038.150 1536611.820 715.00 717.50 27.0 2 690.50 - 700.50 PWR Compliance Monitoring Point MW-6 732034.900 1538418.990 665.55 668.15 53.7 2 614.45 - 619.45 Water Level Only MW-7 731108.570 1538340.330 660.60 663.14 28.5 2 634.64 - 644.64 Compliance Monitoring Point MW-9 733960.050 1536844.420 698.63 738.13 39.5 2 698.63 - 708.63 Compliance Monitoring Point MW-11 732876.620 1538285.500 680.94 683.27 23.9 2 659.32 - 669.32 Compliance Monitoring Point MW-12 733113.180 1538299.110 682.94 685.88 22.6 2 663.28 - 673.28 Compliance Monitoring Point MW-13 733395.180 1538303.870 694.31 696.33 24.5 2 671.80 - 681.80 Compliance Monitoring Point MW-16 734292.090 1539006.790 750.50 752.69 56.7 2 695.99 - 705.99 Compliance Monitoring Point MW-17 733886.300 1539992.750 752.42 755.36 55.0 2 697.42 - 712.42 Compliance Monitoring Point MW-18R 732809.770 1540067.640 07/24/07 658.30 661.39 30.0 2 628.30 - 643.30 Saprolite/PWR Water Level Only MW-18R2 732597.193 1540164.302 05/13/21 643.55 646.24 22.0 2 623.55 - 633.55 Sand/TWR Compliance Monitoring Point MW-19 732908.080 1540348.550 650.47 653.45 20.0 2 630.47 - 645.47 Water Level Only MW-19R 732819.260 1540426.953 05/13/21 644.79 647.55 22.0 2 624.79 - 634.79 Sand/TWR Compliance Monitoring Point MW-20 732537.540 1536619.710 04/05/05 713.90 717.00 33.0 2 680.9-695.9 Saprolite/PWR Compliance Monitoring Point MW-23 732183.590 1537990.800 04/08/05 694.29 697.25 38.5 2 655.79 - 670.79 Saprolite Compliance Monitoring Point MW-23A 732173.300 1537990.800 04/11/05 693.82 696.91 68.5 2 625.32 - 640.32 PWR Compliance Monitoring Point MW-24R 732801.790 1537954.020 04/12/11 714.39 717.10 43.6 2 686.39 - 671.39 Saprolite/PWR Compliance Monitoring Point MW-25 731757.270 1536603.200 04/15/11 704.98 707.46 40.6 2 679.42 - 664.42 Compliance Monitoring Point MW-26 731382.040 1537383.590 04/21/11 694.80 697.30 38.9 2 670.88 - 655.88 Compliance Monitoring Point MW-27 731358.390 1538076.450 04/26/11 661.46 663.90 18.5 2 657.96 - 642.96 Compliance Monitoring Point MW-27A 731350.620 1538084.390 04/25/11 661.27 664.02 64.3 2 602.27 - 597.27 Water Level Only MW-28 731753.260 1538097.330 04/26/11 679.23 682.03 26.2 2 668.02 - 653.02 Water Level Only MW-28R 731882.070 1538013.180 07/11/17 683.04 685.26 35.3 2 666.04 - 651.04 Compliance Monitoring Point MW-29A 731115.058 1538308.155 09/28/21 658.06 660.87 85.0 2 573.06 - 583.06 Bedrock Water Level Only MW-30 730628.777 1538107.637 09/20/21 653.1 656.15 22.0 2 631.1-646.1 Saprolite Water Level Only MW-31 730712.365 1537356.329 09/22/21 667.69 670.12 20.0 2 647.69 - 662.69 Saprolite Water Level Only MW-32 730770.089 1537028.151 09/22/21 663.69 666.16 22.0 2 641.69-656.69 Saprolite Water Level Only MW-32A 730770.089 1537029.151 09/21/21 663.19 665.70 95.0 2 568.19 - 573.19 Saprolite Water Level Only MW-33 731021.221 1536813.827 09/23/21 680.64 683.19 30.0 2 650.64 - 665.64 Saprolite Water Level Only MW-34 731473.923 1536641.246 10/01/21 702.06 704.75 45.0 2 657.06 - 672.06 Saprolite Water Level Only MW-34A 731473.923 1536641.246 09/23/21 701.83 704.61 90.0 2 661.83 - 616.83 Saprolite Water Level Only Notes: ft AMSL = feet above mean sea level ft bgs = feet below ground surface TOC = top of well casing elevation PWR = partially weathered rock TWR = transitionally weathered rock Monitoring wells MW-6, MW-18R, MW-19, MW-23A, MW-27A, and MW-28 are monitored for water levels only. Monitoring wells MW-29A, MW-30, MW-31, MW-32, MW-32A, MW-33, MW-33A, MW-34, and MW-34A are related to the Phase V expansion and currently monitored for water levels only. Project No. GL21456818 W,I) GOLDER Page 1 of 1 November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW-0 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Antimony ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC 2L= 1 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - EPA MCL = 6 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND 10 - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND 54 ND ND ND ND 33 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/30/05 -- - 30 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - - ND ug/L 09/26/06 -- - 30 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - -- ND ug/L 01/31/07 -- - 6 ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - -- -- - -- ND ug/L 07/12/07 -- - 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/17/08 -- - 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/30/08 -- - 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/21/09 -- - 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/14/09 -- - 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/07/10 -- - 6 ND 0.16 J ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/20/10 -- - 6 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/31/11 -- - 6 ND ND ND ND 0.243 J ND ND 0.444 J ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 07/18/11 -- - 6 ND ND 0.245 J ND ND ND ND ND ND ND 0.281 J ND ND -- ND -- -- -- -- - ND ND ug/L 01/24/12 -- - 6 ND ND 0.542 B ND 0.754 B ND ND ND ND ND ND ND ND - ND -- -- -- -- -- ND 0.259 J ug/L 07/17/12 -- - 6 ND ND 0.673 J 0.339 J 1.22 J ND ND ND ND 0.306 J ND ND ND - ND - - - - - ND ND ug/L 01/22/13 -- - 6 1.6 B ND 0.787 B - ND 0.241 B ND 0.439 B Dry ND ND ND ND - ND ND ND ND ND -- ND 0.35 J ug/L 07/15/13 -- - 6 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/27/14 -- - 6 0.256 J ND 1.06 J - 0.334 J ND 1.71 J ND Dry - - ND ND - ND ND ND ND ND - ND ND ug/L 07/15/14 -- - 6 ND ND 0.428 J - ND ND 1.29 J ND ND - - ND ND - ND ND ND ND ND - ND ND ug/L 01/20/15 0.220 - 6 0.315 J ND 0.645 J - 0.407 J 0.307 J 1.2 J ND ND - - ND ND - ND - - - - - - ND ug/L 07/23/15 0.220 - 6 ND ND ND - 0.325 J ND 1 J ND Dry - - ND ND - ND ND 0.26 J ND ND -- ND ND ug/L 01/12/16 0.220 - 6 0.446 B ND 1.37 B - 0.637 B 0.224 B 0.772 B ND ND - - ND ND - ND ND ND 0.239 B ND - ND 0.577 J ug/L 08/01/16 0.220 - 6 ND ND ND ND ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/18/17 0.370 - 6 ND ND ND - ND ND 0.618 J ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 07/24/17 0.370 - 6 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 11/01/17 0.370 - 6 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 0.370 - 6 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/08/18 1.850 5.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND Dry ND ug/L 01/15/19 1.850 5.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.740 2.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/13/20 0.740 2.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.740 2.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/26/21 0.740 2.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 08/25/21 0.740 2.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 02/09/22 0.740 2.0 -- ND ND ND - ND ND - ND ND - - ND - - ND ND ND ND -- ND ND ND u /L 08/15/22 0.740 2.00 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MWA MW-16 MW-1 MW46 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Arsenic ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC 21 = 10 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - EPA MCL = 10 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND 27 - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND ND ND ND ND ND ND 11 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND ND ND 10 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND 15 18 ND 21 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND 12 ND 14 36 ND 63 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND 14 ND 24 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND 64 ND 31 30 ND 100 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND 12 ND ND 11 ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND 13 ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND 31 ND ND ND - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND 29 ND ND ND - - - - - - - - ug/L 12/30/05 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - - ND ug/L 09/26/06 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - - ND ug/L 01/31/07 -- - 10 ND 3.7 B 2.3 B ND 3.9 B ND ND 2.5 B ND ND ND 2.2 B ND 3.1 B - - - - - - - 3 J ug/L 07/12/07 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/17/08 -- - 10 ND 2.1 J 2.6 J ND 3.5 J ND ND ND 2.7 J ND ND ND 2.1 J Dry - - - - - - 2.3 J ND ug/L 07/30/08 -- - 10 ND ND ND ND ND ND 3.7 J ND ND ND 3.3 J ND 4.1 J Dry - - - - - - 3.1 J ND ug/L 01/21/09 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 07/14/09 -- - 10 ND ND ND ND ND ND ND ND ND 4.4 B ND ND ND Dry -- -- -- -- -- - ND 3.84 J ug/L 01/07/10 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 07/20/10 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/31/11 -- - 10 ND ND ND ND 3.46 B ND 4.77 B ND ND ND 5.07 B ND ND Dry -- -- -- -- -- - ND 4.78 J ug/L 07/18/11 -- - 10 ND ND 4.77 J ND 3.02 J ND ND ND ND ND ND ND ND -- 3.59 J -- -- -- -- - ND ND ug/L 01/24/12 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- - 10 ND ND 3.9 J ND 4.82 J 4.18 J 2.96 J ND 3.14 J 5.61 J ND 4.45 J 3.31 J -- 5.72 J - - - - - ND ND ug/L 01/22/13 -- - 10 ND ND ND - ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- - 10 ND ND ND - ND ND ND ND ND - - ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- - 10 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND ND -- ND ND ug/L 07/15/14 -- - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/20/15 5.40 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND - - - - - - ND ug/L 07/23/15 6.80 - 10 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/12/16 6.80 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 08/01/16 6.80 - 10 ND ND ND ND ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/18/17 6.80 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 07/24/17 6.80 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 11/01/17 6.80 - 10 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 6.80 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/08/18 7.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND Dry ND ug/L 01/15/19 7.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/14/19 7.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/13/20 7.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/11/20 7.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/26/21 7.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 08/25/21 7.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 02/09/22 7.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND u /L 08/15/22 7.60 10.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW41 MW-16 MW-1 MW46 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Barium ug/L 10/01/93 -- - -- ND -- 100 ND 200 - - - - - - - - - - - - - - - - - NC2L=700 ug/L ug/L 07/01/94 -- - -- ND -- ND ND 200 - - - - - - - - - - - - - - - - - EPA MCL = 2000 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- 100 -- ND ND 200 - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND 1850 - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- -- - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- -- - - - - - - - - - - - - - ug/L 04/01/97 -- - -- 75 -- 58 ND 610 - - -- -- - - - - - - - - - - - - - ug/L 10/01/97 -- - -- 91 110 92 ND 350 1600 230 4500 -- - - - - - - - - - - - - - ug/L 04/01/98 -- - -- 110 160 52 ND 310 950 470 3200 -- - - - - - - - - - - - - - ug/L 10/01/98 -- - -- 61 ND 110 ND 140 430 180 690 -- - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND 540 ND ND -- - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND 510 ND 710 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND 690 910 ND 1300 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND ND ND 580 1000 ND 2100 - - -- - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND 690 ND 1100 - - -- - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND 3000 ND 1100 910 ND 4000 - - -- - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - -- - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - -- - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - -- - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - -- - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - -- - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - -- - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - -- - - - - - - - - - - - ug/L 11/04/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND 1300 740 ND ND - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND 1100 ND ND ND - - - - - - - - ug/L 12/30/05 -- - 500 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- - - - - ND ug/L 09/26/06 -- - 500 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- - - - -- ND ug/L 01/31/07 -- - 100 63.5 41.2 72.4 2 J 56.8 70.6 57.2 96.6 110 129 57.4 91.5 15.9 148 -- -- -- - - - -- 0.04 J ug/L 07/12/07 -- - 100 57.9 J 15 J 78.1 J 1.8 J 54.8 J 46.8 J 57 J 101 94.9 J 154 50.8 J 104 11.5 J Dry -- -- -- -- -- - 28.4 J ND ug/L 01/17/08 -- - 100 55.7 J 17.4 J 84.9 J 1.9 J 58 J 75.2 J 64.2 J 195 108 38.9 J 43.3 J 125 16.2 J Dry -- -- -- -- -- - 32.3 J ND ug/L 07/30/08 -- - 100 50.6 J 14.2 J 86.2 J 1.9 J 77.7 J 66.1 J 64.6 J 139 72.8 J 104 47.5 J 83.3 J 11.8 J Dry -- -- -- -- -- - 40.2 J ND ug/L 01/21/09 -- - 100 51.4 J 14.5 J 62.7 J 2 J 59.5 J 61.1 J 65.7 J 101 66.3 J 28.5 J 52.6 J 102 11.6 J Dry -- -- -- -- -- - 31.6 J ND ug/L 07/14/09 -- - 100 56.6 J 15 J 72.2 J ND 63.2 J 50.2 J 62.6 J 115 102 32.8 J 48 J 109 10.9 J Dry -- -- -- -- -- - 33.1 J ND ug/L 01/07/10 -- - 100 51.1 J 12 J 55.7 J 1.59 B 56.6 J 68.3 J 65.3 J 76.5 J 84.4 J 28.6 J 83.5 J 89.8 J 10.5 J Dry -- -- -- -- -- - 31.4 J 0.481 J ug/L 07/20/10 -- - 100 41.4 J 10.2 J 58.3 J 1.49 J 78.7 J 40.3 J 51.1 J 146 76.2 J 41.9 J 27.8 J 139 12.3 J Dry -- -- -- -- -- -- 37 J ND ug/L 01/31/11 -- - 100 62.3 J 17.3 J 78.2 J 1.78 J 58.3 J 82.6 J 80.6 J 104 97.7 J 24.9 J 41.1 J 115 44.5 J Dry -- -- -- -- -- -- 31.1 J ND ug/L 07/18/11 -- - 100 69.8 J 19 J 83.3 J 1.59 J 66.3 J 51.7 J 68.5 J 108 117 24.2 J 47.1 J 148 47.7 J -- 99.6 J -- -- -- -- -- 34.1 J ND ug/L 01/24/12 -- - 100 59 J 17.4 J 77.5 J 1.04 J 59.1 J 85.2 J 74.9 J 88.1 J 110 24 J 58.5 J 101 64.2 J -- 90.3 J -- -- -- -- - 34.2 J ND ug/L 07/17/12 -- - 100 61.3 J 18.6 J 80.6 J 1.63 B 59.6 J 48.6 J 59 J 99.5 J 123 21.1 J 70.2 J 123 79.3 J -- 97.1 J -- -- -- -- - 43.7 J 1.32 J ug/L 01/22/13 -- - 100 83.8 J 21.5 J 96.2 J - 61 J 72.8 J 74.1 J 104 Dry 36.9 J 76.5 J 155 121 -- 88.3 J 83.7 J 78.4 J 54.5 J 1050 - 31.3 J 1.24 J ug/L 07/15/13 -- - 100 58 J 23.8 J 68.8 J - 66.5 J 51.9 J 54.6 J 99.2 J 87.2 J - - 168 66.7 J - 82.6 J 29.8 J 92.3 J 40 J 1410 - 37.1 J 1.75 J ug/L 01/27/14 -- - 100 52.8 J 23.3 J 58.9 J - 60.1 J 63 J 54.6 J 80.8 J Dry - - 107 55.5 J - 72.8 J 27.5 J 109 48.1 J 1410 - 36.7 J 1.18 J ug/L 07/15/14 -- - 100 54.7 J 22.2 J 66.9 J - 66.3 J 41.2 J 67.6 J 93.7 J 102 - - 170 34.2 J - 69.1 J 24.3 J 95.1 J 42 J 1510 - 31.7 J ND ug/L 01/20/15 1.00 - 100 60.1 J 21.9 J 82.2 J - 68 J 52 J 61.8 J 107 111 - - 159 51.7 J -- 73.7 J -- -- -- -- - -- 1.01 J ug/L 07/23/15 1.00 - 100 57 J 20.3 J 76.6 J - 65.6 J 51.7 J 60.2 J 104 Dry - - 158 78.5 J -- 66.2 J 27.3 J 95.9 J 51.5 J 1390 - 30.7 J ND ug/L 01/12/16 1.00 - 100 54.2 J 21.6 J 85.3 J - 61.9 J 52.5 J 58.5 J 81.5 J 84.1 J - - 118 32.2 J -- 61.5 J 29.8 J 69.6 J 53.9 J 1390 - 37.7 J 1.94 J ug/L 08/01/16 1.00 - 100 55.4 J 21.3 J 79.6 J 2.66 J 56 J 51.9 J 52.4 J 94.5 J 102 - - 135 44.3 J -- 54.4 J 23.8 J 67.1 J 53.5 J 1500 - 27.1 J ND ug/L 01/18/17 1.00 - 100 58.2 J 19.4 J 85.0 J - 61.2 J 55.3 J 66.5 J 102 77.2 J - - 137 29.3 J -- 56.7 J 32.4 J 56 J 68 J 1450 - 44.7 J ND ug/L 07/24/17 1.00 - 100 56.9 J 23.6 J 76.4 J - 65.5 J 52.7 J 61.6 J 109 153 - - 90.6 J 32.0 J - 55.5 J 29.1 J 54.7 J 83.0 J -- 193 Dry 2.03 J ug/L 11/01/17 1.00 - 100 - -- - - - - - -- - - - - - - - - - - - 229 Dry ND ug/L 02/20/18 1.00 - 100 46.5 J 20.3 J 79.8 J - 59.5 J 44.2 J 57.1 J 85.6 J 59.8 J - - 129 31.7 J - 51.8 J 29.6 J 41.7 J 72.7 J -- 230 Dry ND ug/L 08/08/18 1.10 10.0 -- 46.5 19.3 84.0 - 62.1 44.6 60.1 92.7 82.7 - - 158 20.0 - 49.4 31.0 46.1 80.2 -- 272 Dry 3.31 J ug/L 01/15/19 1.10 10.0 -- 54.7 22.3 96.4 - 68.4 49.8 65.8 67.7 100 - - 166 22.0 - 55.9 32.0 60.9 96.7 -- 240 Dry ND ug/L 08/14/19 1.10 10.0 -- 60.4 16.9 88.1 - 65.5 40.2 55.6 91.2 68.8 - - 205 19.3 - 52.4 25.9 68.7 79.5 -- 337 38.9 2.69 J ug/L 01/13/20 1.10 10.0 -- 61.3 14.9 90.6 - 61.2 46.4 61.1 52.1 89.6 - - 178 20.5 - 51.4 28.2 55.2 70.3 -- 219 Dry 1.11 J ug/L 08/11/20 1.10 10.0 -- 67.6 16.6 102 - 66.1 52.5 53.3 102 79.1 - - 249 21.7 -- 57.2 27.8 74.4 82.9 -- 395 33.0 ND ug/L 01/26/21 1.10 10.0 -- 64.8 15.4 98.6 - 64.3 40.8 55.8 87.0 81.7 - - 207 26.3 - 57.2 30.0 78.8 82.2 -- 427 54.0 ND ug/L 08/25/21 1.10 10.0 -- 60.2 14.1 96.4 - 64.0 38.3 53.9 92.5 81.5 - - 198 - - 56.5 29.5 73.6 58.5 - 379 52.5 ND ug/L 02/09/22 1.10 10.0 -- 62.7 13.5 96.4 - 69.3 43.4 56.3 80.9 88.4 - - 197 - - 60.1 35.5 50.3 69.5 - 302 33.4 ND u /L 08/15/22 1.10 10.0 61.8 14.3 88.3 63.9 37.9 47.8 93.9 84.5 180 57.4 32.2 45.9 65.2 377 30.0 ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MW46 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Beryllium ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC2L=4 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - EPA MCL=4 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND 18.4 - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND 9.3 - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND ND 7 -- - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND ND ND 5 15 1 13 - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND ND ND ND 3 9 3 29 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND 3 ND 3 - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- 3 ND ND ND ND 4 ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND 4 ND 4 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND 6 8 ND 10 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND 4 ND 5 10 ND 18 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND 3 8 ND 10 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND 30 ND 11 10 ND 29 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND 2 ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/O5 -- - -- - -- - - - - - -- ND ND ND ND ND 4.3 - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND 7.6 4.1 ND 3.1 - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND 21 ND ND ND 3.7 - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND 5.8 ND ND ND - - - - - - - - ug/L 12/30/05 -- - 2 ND ND ND ND ND ND ND ND ND ND ND 2.6 ND ND - - - - - - - ND ug/L 09/26/06 -- - 2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - -- ND ug/L 01/31/07 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND 0.7 J - - - - - - - ND ug/L 07/12/07 -- - 1 ND ND ND ND ND ND ND ND 0.3 J 0.5 J 0.3 J ND ND Dry - - - - - - ND ND ug/L 01/17/08 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/30/08 -- - 1 ND ND 0.1 J ND 0.3 J ND 0.1 J ND 0.1 J 0.4 J 0.1 J ND ND Dry - - - - - - ND ND ug/L 01/21/09 -- - 1 ND ND ND ND ND ND ND ND 0.1 J ND 0.2 J 0.1 J ND Dry - - - - - - ND ND ug/L 07/14/09 -- - 1 ND ND 0.0858 J ND 0.247 J ND 0.17 J ND 0.298 J ND 0.232 J 0.106 J ND Dry -- -- -- -- -- - ND ND ug/L 01/07/10 -- - 1 ND ND 0.124 J ND 0.269 J 0.21 J 0.239 J 0.105 J 0.293 J 0.101 J 0.648 J 0.268 J ND Dry -- -- -- -- -- - ND ND ug/L 07/20/10 -- - 1 ND ND ND ND 0.575 J ND ND ND 0.289 J ND 0.123 J 0.129 J ND Dry -- -- -- -- -- - ND ND ug/L 01/31/11 -- - 1 ND ND 0.207 J ND 0.185 J 0.107 J 0.239 J ND 0.305 J ND 0.23 J 0.123 J ND Dry -- -- -- -- -- - ND ND ug/L 07/18/11 -- - 1 ND ND ND ND 0.227 J ND 0.167 J ND 0.347 J ND 0.244 J 0.149 J ND -- 0.409 J -- -- -- -- - ND ND ug/L 01/24/12 -- - 1 ND ND ND ND 0.108 J 0.151 J 0.221 J ND 0.236 J ND 0.186 J ND ND -- 0.28 J -- -- -- -- -- ND ND ug/L 07/17/12 -- - 1 ND ND 0.131 J ND 0.288 J ND 0.301 J ND 0.42 J 0.19 J 0.459 J 0.211 J 0.104 J -- 0.631 J -- -- -- -- -- ND ND ug/L 01/22/13 -- - 1 ND ND 0.103 J - 0.215 J ND 0.405 J ND Dry 0.114 J 0.45 J 0.288 J ND - 0.418 J ND 0.344 J 0.353 J 1.62 -- ND ND ug/L 07/15/13 -- - 1 ND ND ND - 0.258 J ND 0.257 J ND 0.26 J - - 0.254 J ND - 0.329 J ND 0.317 J ND 1.84 -- ND ND ug/L 01/27/14 -- - 1 ND ND ND - 0.139 J ND 0.148 J ND Dry - - ND ND - 0.223 J ND 0.366 J ND 1.82 -- ND ND ug/L 07/15/14 -- - 1 ND ND ND - 0.284 J ND 0.416 J ND 0.401 J - - 0.18 J ND - 0.315 J ND 0.387 J ND 1.91 -- ND ND ug/L 01/20/15 0.10 - 1 ND ND ND - 0.256 J ND 0.246 J ND 0.283 J - - 0.185 J ND - 0.281 J -- -- -- -- -- -- ND ug/L 07/23/15 0.10 - 1 ND ND ND - 0.215 J ND ND ND Dry - - 0.183 J ND - 0.253 J ND 0.319 J ND 1.84 -- ND ND ug/L 01/12/16 0.10 - 1 ND ND ND - 0.201 J ND 0.207 J ND 0.261 J - - 0.11 J ND - 0.232 J ND 0.214 J ND 1.81 - ND ND ug/L 08/01/16 0.10 - 1 ND ND 0.13 J ND 0.234 J ND 0.282 J 0.111 J 0.364 J - - 0.187 J ND - 0.284 J ND 0.241 J 0.124 J 1.91 -- ND ND ug/L 01/18/17 0.10 - 1 ND ND ND - ND ND 0.191 J ND 0.108 J - - 0.104 J ND - ND ND 0.133 J 0.151 J 2.07 -- ND ND ug/L 07/24/17 0.10 - 1 ND ND ND - 0.154 J ND 0.133 J ND ND - - 0.180 J ND - ND ND ND ND - ND Dry ND ug/L 11/01/17 0.10 - 1 - -- - - - - - -- - - - - - - - - - - - 0.238 J Dry ND ug/L 02/20/18 0.10 - 1 ND ND 0.181 J - 0.207 J ND 0.266 J ND 0.191 J - - 0.222 J ND - 0.274 J ND 0.227 J 0.176 J -- 0.444 J Dry ND ug/L 08/08/18 0.16 1.00 -- ND ND 0.175 J - ND ND 0.253 J ND 0.186 J - - ND ND - 0.165 J ND 0.193 J 0.553 J -- 0.369 J Dry ND ug/L 01/15/19 0.16 1.00 -- ND ND ND - 0.198 J ND 0.282 J ND 0.375 J - - 0.232 J ND - 0.299 J ND 0.236 J 0.344 J - 0.559 J Dry ND ug/L 08/14/19 0.16 1.00 -- ND ND ND - 0.235 J ND 0.311 J ND 0.280 J - - 0.238 J ND - 0.174 J ND 0.275 J 0.247 J - 0.630 J ND ND ug/L 01/13/20 0.16 1.00 -- ND ND ND - 0.189 J ND 0.198 J ND 0.230 J - - 0.195 J ND - 0.198 J ND 0.196 J 0.482 J - 0.511 J Dry ND ug/L 08/11/20 0.160 1.00 -- ND ND ND - 0.191 J ND 0.172 J ND ND - - 0.172 J ND -- 0.225 J ND 0.294 J 0.315 J - 0.681 J ND ND ug/L 01/26/21 0.160 1.00 -- ND ND ND - 0.181 J ND 0.252 J ND 0.251 J - - 0.257 J ND -- 0.218 J ND 0.276 J 0.247 J - 0.665 J ND ND ug/L 08/25/21 0.160 1.00 -- ND ND ND - 0.199 J ND 0.244 J ND 0.271 J - - 0.280 J - - 0.278 J ND 0.275 J 0.426 J - 0.614 J ND ND ug/L 02/09/22 0.160 1.00 -- ND ND ND - 0.311 J ND 0.248 J ND 0.278 J - - 0.271 J - - 0.280 J ND 0.191 J 0.981 J -- 0.610 J ND ND ug/L 08/15/22 0.160 1.00 ND ND ND 0.268 J ND 0.256 J ND 0.223 J 0.283 J 0.256 J ND 0.265 J 0.603 J 0.677 J ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Cadmium ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC2L=2 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - EPA MCL = 5 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND 4 ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND 1 - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND 1 ND - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- 2 ND 2 ND ND 2 3 3 - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- 4 ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND 2 1 2 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- 4 3 5 1 6 15 6 17 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- 2 1 6 ND 3 4 3 8 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND 1 ND 1 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND 2 ND ND ND ND 2 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- 1 ND ND 1 ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- 1 ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/30/05 -- - 1 ND ND 18 ND 3.9 ND ND ND ND ND ND ND ND ND - - - - - - - ND ug/L 09/26/06 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- - - - -- ND ug/L 01/31/07 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- - - - -- ND ug/L 07/12/07 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/17/08 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/30/08 -- - 1 ND 0.4 B ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND 0.7 J ug/L 01/21/09 -- - 1 ND ND ND ND ND ND ND ND 1 ND ND ND ND Dry - - - - - - ND ND ug/L 07/14/09 -- - 1 0.189 J 0.189 J ND ND 0.175 J 0.146 J 0.0925 J 0.087 J 0.398 J ND ND 0.0927 J ND Dry -- -- -- -- -- - 0.141 J ND ug/L 01/07/10 -- - 1 0.333 J 0.209 J 0.18 J 0.225 J 0.237 J 0.208 J 0.308 J 0.14 J 0.361 J 0.196 J 0.419 J 0.277 J 0.142 J Dry -- -- -- -- -- - 0.236 J ND ug/L 07/20/10 -- - 1 ND ND ND ND 0.391 J ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/31/11 -- - 1 ND ND ND ND ND ND ND ND ND ND 0.621 J ND ND Dry -- -- -- -- -- - ND ND ug/L 07/18/11 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND - ND -- -- -- -- - ND ND ug/L 01/24/12 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- - ND ND ug/L 07/17/12 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- - ND ND ug/L 01/22/13 -- - 1 ND ND ND - ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND - ND ND ug/L 07/15/13 -- - 1 ND ND ND - ND ND ND ND ND - - ND ND -- ND ND ND ND ND - ND ND ug/L 01/27/14 -- - 1 ND ND ND - ND ND 3.11 ND Dry - - ND ND -- ND ND ND ND ND - ND ND ug/L 07/15/14 -- - 1 ND ND ND - ND ND ND ND ND - - ND ND -- ND ND ND ND ND -- ND ND ug/L 01/20/15 0.360 - 1 ND ND ND - ND ND ND ND ND - - ND ND -- ND - - - - - - ND ug/L 07/23/15 0.360 - 1 ND ND ND - ND ND ND ND Dry - - ND ND -- ND ND ND ND ND -- ND ND ug/L 01/12/16 0.360 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 08/01/16 0.360 - 1 ND ND ND ND ND ND ND ND 0.363 J - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/18/17 0.360 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 07/24/17 0.360 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 11/01/17 0.360 - 1 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 0.360 - 1 ND ND ND - ND ND ND ND 0.374 B - - ND ND - ND ND ND ND - ND Dry 0.383 J ug/L 08/08/18 0.360 1.00 -- ND ND ND - ND ND ND ND ND - - ND ND -- ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.360 1.00 -- ND ND ND -- ND ND ND ND ND - - ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.360 1.00 -- ND ND ND -- ND ND ND ND ND - - ND ND -- ND ND ND ND -- ND ND ND ug/L 01/13/20 0.360 1.00 -- ND ND ND -- ND ND ND ND ND - - ND ND -- ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.360 1.00 -- ND ND ND - ND ND ND ND ND - - ND ND -- ND ND ND ND -- ND ND ND ug/L 01/26/21 0.360 1.00 -- ND ND ND - ND ND ND ND ND - - ND ND -- ND ND ND ND -- ND ND ND ug/L 08/25/21 0.360 1.00 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 02/09/22 0.360 1.00 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 08/15/22 0.360 1.00 ND ND ND ND ND ND ND 0.422 J ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MWA MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Chromium ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC 21 = 10 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - EPA MCL = 100 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND 51 - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND 10 -- -- -- -- - - - - - - - - - - - - - ug/L 10/01/96 -- - -- 20.4 -- ND ND ND -- -- -- -- - - - - - - - - - - - - - ug/L 04/01/97 _ _ _ 9 -- 2 45 34 _ _ ug/L 10/01/97 -- - -- 15 2 10 ND 9 210 22 800 -- - - - - - - - - - - - - - ug/L 04/01/98 -- - -- 14 17 3 ND 9 140 54 750 -- - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND 11 19 16 -- - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND -- - - - - - - - - - - - - - ug/L 09/01/99 -- - -- 15 ND ND ND ND 23 13 32 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- 18 ND 17 ND 19 86 23 120 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- 14 ND 47 ND 20 130 19 250 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND 13 ND 14 60 13 110 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- 43 ND 220 ND 31 96 13 390 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND 11 - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- 10 ND ND ND ND 12 ND 14 - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND 58 - - - - - - - - ug/L 12/12/O5 -- - -- - -- - - - - - -- ND ND 13 ND 10 55 - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND 15 ND ND ND 63 - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/30/05 -- - 10 ND ND 11 ND 16 ND ND ND ND ND ND ND ND ND - - - - - - - ND ug/L 09/26/06 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND 18.9 - - - - - - - ND ug/L 01/31/07 -- - 10 6.4 J 2 J ND ND 2.8 J ND ND ND ND 4.1 J ND ND ND 15.8 - - - - - - - ND ug/L 07/12/07 -- - 10 7.3 J ND ND ND 3.2 J ND ND ND ND 5.4 J ND 2.8 J ND Dry - - - - - - 8.3 J ND ug/L 01/17/08 -- - 10 3.8 J ND ND ND 3.4 J 2.3 J ND 11.8 3.2 J ND ND ND ND Dry - - - - - - 2.5 J ND ug/L 07/30/08 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- - - ND 14.5 ug/L 01/21/09 -- - 10 3.4 J ND ND ND 2.6 J ND 1.1 J ND ND ND ND 3.1 J ND Dry - - - - - - 1.2 J ND ug/L 07/14/09 -- - 10 6.23 J ND 0.932 J 1.28 J 5.09 J 1.4 J 1.39 J 2.49 J 1.04 J 1.52 J 1.21 J 2.62 J ND Dry -- -- -- -- -- - 2.45 J ND ug/L 01/07/10 -- - 10 4.16 J ND ND 3.69 J 2.8 J ND ND ND ND ND ND 1.77 J ND Dry -- -- -- -- -- - ND ND ug/L 07/20/10 -- - 10 9.54 J ND ND ND 6.85 J ND 1.82 J 7.77 J ND 1.85 J ND 2.73 J ND Dry -- -- -- -- -- - 2.01 J ND ug/L 01/31/11 -- - 10 9.06 J ND ND ND 3.36 J 2.8 J 3.73 J 2.23 J ND ND 1.46 J 2.51 J 4.06 J Dry -- -- -- -- -- - 1.93 J ND ug/L 07/18/11 -- - 10 9.36 J ND ND ND 3.03 J ND 1.63 J 1.95 J ND ND ND 2.85 J 3.91 J -- 4.79 J -- -- -- -- - 1.93 J ND ug/L 01/24/12 -- - 10 9.46 J ND ND 1.16 J 4.98 J 2.39 J 3.05 J 2.11 J 4.98 J 2.34 J 1.53 J 2.94 J 6.93 J -- 2.94 J -- -- -- -- - 2.31 J ND ug/L 07/17/12 -- - 10 9.42 J ND ND ND 3.29 J ND 1.92 J 1.46 J 2.58 J ND ND 2.4 J 7.94 J -- 3.38 J -- -- -- -- -- 2.81 J ND ug/L 01/22/13 -- - 10 14.1 ND ND - 4.3 B 1.02 J 3.45 J 2.18 J Dry ND 1.85 B 4.36 J 14.1 - 2.05 B 7.61 J 1.89 J 2.82 J ND - 2.02 J 1.5 J ug/L 07/15/13 -- - 10 12.2 ND ND - 3.88 J ND ND 1.42 J ND - - 5.53 J 6.82 J - ND 3.56 J ND ND ND - 1.56 J ND ug/L 01/27/14 -- - 10 7.1 J ND ND - 4.09 J ND ND ND Dry - - 2.1 J 5.46 J - ND 3.8 J 1.62 J ND ND - 1.93 J ND ug/L 07/15/14 -- - 10 11.2 ND ND - 2.69 J ND 4.25 J 1.79 J ND - - 1.98 J 2.86 J - ND 3.04 J ND ND ND - 1.79 J ND ug/L 01/20/15 1.40 - 10 8.19 J ND ND - 3.37 J ND ND 2.03 J 3.8 J - - 3.55 J 4.88 J - ND - - - - - - ND ug/L 07/23/15 1.40 - 10 10.6 ND ND - 3.62 J 1.9 J 2.38 J 2.51 J Dry - - 2.56 J 8.21 J - ND 3.57 J ND 1.48 J ND - 2.18 J ND ug/L 01/12/16 1.40 - 10 6.65 J ND ND - 2.99 J ND ND ND ND - - 2.25 J ND - ND 3.41 J ND ND ND -- ND ND ug/L 08/01/16 1.40 - 10 10.6 ND ND ND 2.68 J 1.48 J ND 3.32 J ND - - 1.81 J 4.27 J - ND 2.99 J ND ND ND - ND ND ug/L 01/18/17 1.40 - 10 9.25 J ND ND - 3.37 J ND 1.47 J 2.36 J ND - - 2.42 J 2.33 J - ND 4.45 J ND ND ND -- ND ND ug/L 07/24/17 1.40 - 10 9.67 J ND ND - 3.93 J ND 1.92 J 2.58 J 3.38 J - - ND 2.77 J - ND 4.35 J ND ND - ND Dry ND ug/L 11/01/17 1.40 - 10 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 1.40 - 10 7.57 J ND ND - 3.46 J ND ND 2.88 J ND - - 2.91 J 2.19 J - ND 4.05 J ND ND - ND Dry ND ug/L 08/08/18 1.40 10.0 -- 8.10 B ND ND - 3.86 B ND ND 1.78 B ND - - 2.00 B ND - 1.87 B 3.34 B 1.89 B 5.67 B -- ND Dry 1.66 J ug/L 01/15/19 1.40 10.0 -- 13.6 ND ND - 4.53 J ND ND 1.65 J ND - - 3.21 J ND - ND 4.81 J ND 4.24 J - ND Dry ND ug/L 08/14/19 1.40 10.0 -- 3.02 J ND ND - 3.20 J ND ND 1.74 J ND - - 3.41 J ND - ND 3.79 J ND ND -- ND ND ND ug/L 01/13/20 1.40 10.0 -- 5.75 J ND ND - 3.67 J ND ND ND ND - - 2.91 J ND - ND 4.01 J ND ND -- ND Dry ND ug/L 08/11/20 1.40 10.0 -- 3.98 J 1.48 J 1.59 J - 5.75 J 3.00 J 1.72 J 4.42 J 1.83 J - - 4.54 J 1.94 J - ND 5.65 J ND 1.88 J -- 1.41 J ND ND ug/L 01/26/21 1.40 10.0 -- 2.59 J ND ND - 4.71 J ND ND 1.57 J ND - - 3.91 J 1.89 J - 1.41 J 4.81 J ND ND -- ND ND ND ug/L 08/25/21 1.40 10.0 -- ND ND ND - 4.02 J ND ND 2.45 J ND - - 3.60 J - - ND 4.29 J ND ND -- ND ND ND ug/L 02/09/22 1.40 10.0 -- 3.47 J ND ND - 3.70 J ND ND 3.21 J 1.42 J - - 5.16 J - - ND 4.97 J ND ND -- ND ND ND u /L 08/15/22 1.40 10.0 2.18 J ND ND 3.77 J ND ND 2.40 J ND 3.18 J ND 3.70 J ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Cobalt ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC2L=1 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - No EPA MCL ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- 16.5 ND 18.5 - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- 15 ND 9 - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND 8 5 ND 5 73 10 200 - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND 2 4 ND 2 34 22 100 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND 14 ND 16 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND 10 45 12 50 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND 26 ND 12 69 11 100 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND 31 ND 45 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND 110 ND 16 39 ND 110 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND -- - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND -- - - - - - - - - - - - - - ug/L 11/04/O5 -- - -- - -- - - - - - -- 15 ND ND ND ND- ug/L 12/12/05 -- - -- - -- - - - - - -- 15 ND 18 ND ND 15 - - - - - - - - ug/L 12M 3105 -- - -- - -- - - - - - -- 19 ND ND ND ND 15 - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- 15 ND 16 ND ND ND - - - - - - - - ug/L 12/30/05 -- - 10 ND ND ND ND ND ND ND ND 18 ND ND ND ND ND - - - - - - - ND ug/L 09/26/06 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - - ND ug/L 01/31/07 -- - 10 ND ND 3.2 J ND ND ND ND ND 10.7 3.7 J ND ND ND 6.5 J - - - - - - - ND ug/L 07/12/07 -- - 10 ND ND 5.9 J ND ND ND ND ND 9.1 J 3.6 J ND ND ND Dry - - - - - - ND ND ug/L 01/17/08 -- - 10 ND ND 9.6 J ND ND ND ND 2.9 J 10.1 ND ND ND ND Dry - - - - - - ND ND ug/L 07/30/08 -- - 10 ND ND 3 J ND ND ND 1.5 J ND 5.7 J 1.6 J ND ND ND Dry - - - - - - ND ND ug/L 01/21/09 -- - 10 ND ND ND ND ND ND ND ND 5.4 J ND ND ND ND Dry - - - - - - ND ND ug/L 07/14/09 -- - 10 ND ND ND ND ND ND ND ND 9.56 J ND ND ND ND Dry - - - - - - ND ND ug/L 01/07/10 -- - 10 ND 0.536 J 0.484 J 0.561 J ND 0.686 J ND 0.57 J 8.23 J 0.83 J 1.96 J 0.782 J 0.499 J Dry - - - - - - 0.657 J ND ug/L 07/20/10 -- - 10 ND ND ND ND 1.44 J ND ND 2.69 J 8.05 J 1.68 J ND ND ND Dry - - - - - - ND ND ug/L 01/31/11 -- - 10 ND ND 1.8 J ND ND 1.12 J ND ND 8.5 J ND ND ND 1.98 J Dry - - - - - - ND ND ug/L 07/18/11 -- - 10 ND ND ND ND ND ND ND ND 9.85 J ND ND ND ND -- ND - - - - - ND ND ug/L 01/24/12 -- - 10 ND ND ND ND ND ND ND ND 9.08 J ND ND ND 2.32 J - ND - - - - - ND ND ug/L 07/17/12 -- - 10 ND ND ND ND ND ND ND ND 10.1 ND ND ND 3.05 J - ND - - - - - ND ND ug/L 01/22/13 -- - 10 1.65 J ND 2.51 J - ND ND ND ND Dry ND ND 1.15 J 6.74 J - ND 3.17 J ND ND 24.1 - ND ND ug/L 07/15/13 -- - 10 ND ND ND - ND ND ND ND 6.46 J - - 1.57 J 2.58 J - ND ND ND ND 27.6 - ND ND ug/L 01/27/14 -- - 10 ND ND ND - ND ND ND ND Dry - - ND 2.54 J - ND ND ND ND 27.8 - 1.1 J ND ug/L 07/15/14 -- - 10 ND ND 5.52 J - ND ND ND ND 8.83 J - - ND ND - ND ND ND ND 28.3 - ND ND ug/L 01/20/15 1.10 - 10 ND ND 3.52 J - ND ND ND ND 7.94 J - - ND 2.62 J - ND - - - - - - ND ug/L 07/23/15 1.10 - 10 ND ND 8.57 J -- ND ND ND ND Dry - - 1.32 J 4.14 J - ND ND ND ND 31 - ND ND ug/L 01/12/16 1.10 - 10 ND ND 1.81 J -- ND ND ND ND 6.01 J - - ND ND - ND ND ND ND 27.5 - ND ND ug/L 08/01/16 1.10 - 10 ND ND 3.37 J ND ND ND ND ND 7.98 J - - ND 1.26 J - ND ND ND ND 29.2 - ND ND ug/L 01/18/17 1.10 - 10 ND ND 8.32 J -- ND ND ND ND 6.02 J - - ND ND - ND ND ND ND 29.9 - ND ND ug/L 07/24/17 1.10 - 10 ND ND 2.47 J -- ND ND ND ND ND - - 7.67 J ND - ND ND ND ND - 1.57 J Dry ND ug/L 11/01/17 1.10 - 10 - -- - -- - - - -- - - - - - - - - - - - 2.83 J Dry ND ug/L 02/20/18 1.10 - 10 1.58 B ND 2.01 B - 1.13 B 1.23 B ND ND 7.35 J - - ND 1.61 B - ND ND ND ND -- 2.69 B Dry 1.22 J ug/L 08/08/18 1.40 10.0 -- 1.73 J ND 2.29 J - ND 1.58 J 1.60 J ND 8.97 J -- - 1.81 J ND - ND 1.62 J 1.48 J 2.06 J -- 4.09 J Dry ND ug/L 01/15/19 1.40 10.0 -- ND ND ND - ND ND ND ND 7.91 J -- - ND ND - ND ND ND ND -- 1.83 J Dry ND ug/L 08/14/19 1.40 10.0 -- ND ND 2.18 J - ND ND ND ND 6.41 J - - ND ND - ND ND ND ND - 3.54 J ND ND ug/L 01/13/20 1.40 10.0 -- ND ND 1.43 J - ND ND ND ND 5.71 J -- - ND ND - ND ND ND ND -- 1.85 J Dry ND ug/L 08/11/20 1.40 10.0 -- ND ND 2.01 J - ND ND ND ND 4.50 J -- - ND ND - ND ND ND ND - 2.97 J ND ND ug/L 01/26/21 1.40 10.0 -- ND ND 1.59 J - ND ND ND ND 4.38 J - - ND ND - ND ND ND ND -- 4.11 J ND ND ug/L 08/25/21 1.40 10.0 -- ND ND ND - ND ND ND ND 4.99 J - - ND - - ND ND ND ND -- 3.59 J 1.41 J ND ug/L 02/0912 1.40 10.0 -- ND ND ND - ND ND ND ND 5.63 J - - ND - - ND ND ND ND - 2.58 J ND ND ug/L 08/15/22 1.40 10.0 ND ND 1.41 J ND ND ND ND 9.08 J 1.58 J ND ND ND ND 3.33 J ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW41 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Copper ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC 21 = 1000 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - EPA MCL = 1300 ug/0 ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- 20 -- ND 30 30 - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND 33 ND ND 39 15 140 - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- 15 13 11 ND ND 26 31 61 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND 210 ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND 3100 ND ND ND ND 120 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/30/05 -- - 200 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- - - - - ND ug/L 09/26/06 -- - 200 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- - - - -- ND ug/L 01/31/07 -- - 10 0.7 J 0.7 J 2.3 J ND 0.9 J 0.8 J ND ND 3.1 J 9.1 J ND 0.6 J ND 4.2 J - - - - - - - ND ug/L 07/12/07 -- - 10 ND ND 2.6 J ND ND ND ND ND 2.3 J 4.4 J ND ND ND Dry - - - - - - ND ND ug/L 01/17/08 -- - 10 ND 0.6 J 2.3 J ND ND ND ND ND 19.1 1 J ND ND ND Dry - - - - - - 2.1 J ND ug/L 07/30/08 -- - 10 ND ND ND ND ND ND ND ND ND 1.9 J ND ND ND Dry - - - - - - 5 J ND ug/L 01/21/09 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- - - 3.1 J ND ug/L 07/14/09 -- - 10 1.21 B 3.47 B 6.47 J ND 1.75 B 3.78 B 3.99 B 5.23 J 10.6 7.37 J 3.67 B 2.67 B 0.859 B Dry - - -- - - - 2.66 B 1.04 J ug/L 01/07/10 -- - 10 2.91 J ND ND ND ND ND ND ND 9.72 J 3.66 J ND ND ND Dry - - -- -- -- - 2.2 J ND ug/L 07/20/10 -- - 10 ND ND 2.1 J ND ND ND ND ND 2.69 J 2.58 J ND ND ND Dry - - -- - - - 5.12 J ND ug/L 01/31/11 -- - 10 ND ND 1.97 J 5.02 J ND ND ND ND 4.62 J 2.34 J 2.28 J 1.9 J ND Dry - - -- - - - ND ND ug/L 07/18/11 -- - 10 ND ND 1.64 J 3.63 J ND ND ND ND 4.03 J ND ND ND ND -- 2.48 J -- -- -- -- - 2.2 J ND ug/L 01/24/12 -- - 10 2.9 B 2.75 B 3.09 B 3.36 B 2.22 B 2.82 B 3.29 B 2.21 B 18.2 3.28 B 3.17 B 2.51 B 3.31 B -- 3.22 B - -- - - - 4.41 B 2.78 J ug/L 07/17/12 -- - 10 ND ND ND ND ND ND ND ND 16.7 ND ND ND ND -- ND -- -- -- -- -- 1.69 J ND ug/L 01/22/13 -- - 10 8.62 J ND ND - ND ND 3.18 J ND Dry ND ND 10.9 8.97 J -- ND 12.8 2.21 J 1.61 J 5.71 J -- ND ND ug/L 07/15/13 -- - 10 ND ND ND - ND ND ND ND 3.6 J - - ND ND -- ND ND ND ND 5.63 J - ND ND ug/L 01/27/14 -- - 10 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND 6.03 J - ND ND ug/L 07/15/14 -- - 10 ND ND ND - ND ND ND ND 2.75 J - - ND ND - ND ND ND ND 6.13 J - ND ND ug/L 01/20/15 1.60 - 10 ND ND ND - ND ND ND ND 5.92 J - - ND ND - 2.98 J - -- - - - - ND ug/L 07/23/15 1.60 - 10 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND 5.08 B -- ND 1.9 J ug/L 01/12/16 1.60 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 5.18 B -- ND 3.52 J ug/L 08/01/16 1.60 - 10 ND ND ND ND ND ND ND ND ND - - ND ND - ND ND ND ND 6.69 J -- ND ND ug/L 01/18/17 1.60 - 10 ND ND 2.92 B - ND 2.07 B 1.73 B 1.95 B 2.4 B - - ND 2.01 B - ND 3.47 B 1.78 B 1.92 B 8.84 B -- 9.43 B 4.8 J ug/L 07/24/17 1.60 - 10 ND 1.90 B ND - ND ND 2.24 B ND ND - - 1.89 B 1.99 B - 2.04 B ND ND ND - 1.86 B Dry 4.18 J ug/L 11/01/17 1.60 - 10 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 1.60 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/08/18 1.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND 5.91 J ND ND - ND Dry ND ug/L 01/15/19 1.60 10.0 -- 1.66 J ND 4.14 J - ND ND ND ND 3.42 J - - ND ND - ND 8.78 J ND 2.66 J - ND Dry ND ug/L 08/14/19 1.60 10.0 -- ND ND ND - ND ND ND ND 2.11 B - - ND ND - ND ND ND ND -- ND ND 2.38 J ug/L 01/13/20 1.60 10.0 -- ND ND 2.39 J - ND ND ND ND 2.68 J - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/11/20 1.60 10.0 -- 2.12 B 2.34 B 2.81 B - 2.06 B 2.25 B 1.93 B 2.30 B 6.60 B - - 2.04 B 3.68 B - 2.61 B 2.49 B ND 1.64 B -- 1.72 B 3.49 B 1.95 J ug/L 01/26/21 1.60 10.0 -- 3.74 J ND 2.45 J - ND ND ND 2.74 J 5.03 J - - ND ND - 1.99 J ND 1.65 J ND -- ND 5.54 J ND ug/L 08/25/21 1.60 10.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 02/09/22 1.60 10.0 -- ND ND 2.04 J - ND ND ND ND 3.88 J - - ND - - ND ND ND ND -- ND 2.41 J ND u /L 08/15/22 1.60 10.0 ND ND ND ND ND ND ND 2.72 J ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Upgradient MSW Wells Sidegradient and Downgradient MSW Wells Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting French Drain Blanks MWA MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Limit Lead ug/L 10/01/93 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - NC 21 = 15 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - EPA MCL = 15 ug/L° ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- 49 -- 43 10 ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- 10 -- ND 9 ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND 134 -- - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND 26 -- - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- 4.47 -- 3.8 ND 10 -- - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- 5 -- ND 5 65 - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND ND ND 25 75 13 200 - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND 17 ND ND 19 55 37 150 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND 10 ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND 13 ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND 16 ND 27 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND 12 ND 65 48 12 B9 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND 38 ND 53 73 12 170 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND 16 20 ND 37 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND ND ND 60 24 ND 110 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - -- - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - -- - - -- - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND 42 - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND 67 22 ND 38 - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND 13 11 ND 43 - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND 33 ND ND 14 - - - - - - - - ug/L 12/30/05 -- - 10 ND ND ND ND ND ND ND ND ND ND ND 17 ND ND - - - - - - - ND ug/L 09/26/06 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - -- ND ug/L 01/31/07 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND 5.4 J - - - - - - - ND ug/L 07/12/07 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/17/08 -- - 10 ND ND ND ND ND ND ND 5.3 J ND ND ND 3.2 J ND Dry - - - - - - ND ND ug/L 07/30/08 -- - 10 3 J ND ND ND 3.3 J ND ND 4 J ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/21/09 -- - 10 ND ND ND ND ND ND ND ND ND ND ND 2.5 J ND Dry - - - - - - 6.9 J ND ug/L 07/14/09 -- - 10 ND 1.64 B ND ND ND ND ND ND ND ND 1.95 B ND ND Dry - - - - -- - ND 3.4 J ug/L 01/07/10 -- - 10 1.93 B ND ND 16 ND ND 2.68 B 1.61 B ND 1.55 B 5.21 B 2.68 B ND Dry - - - - - - 1.4 B 1.47 J ug/L 07/20/10 -- - 10 ND ND ND ND 2.98 J ND ND 2.22 J ND ND ND ND ND Dry - - - - - - 6.43 J ND ug/L 01/31/11 -- - 10 2.44 J 2.16 J ND ND ND ND ND ND ND ND 2.67 J ND 3.15 J Dry - - - - - - ND ND ug/L 07/18/11 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND - -- -- -- -- 1.91 J ND ug/L 01/24/12 -- - 10 1.99 J 3.18 J 2.04 J ND 2.32 J ND 3.65 J ND 2.72 J ND ND 1.91 J 6.05 J - ND - - - - - 2.04 J ND ug/L 07/17/12 -- - 10 ND ND ND ND ND ND ND ND ND ND 2.38 J ND 5.95 J - 2.92 J -- -- -- -- -- ND ND ug/L 01/22/13 -- - 10 2.96 B ND ND - ND 2.1 B 3.59 B ND Dry 2.74 J ND 3.94 B 4.74 B - ND 3.22 B 2.49 B 2.49 B ND -- ND 1.97 J ug/L 07/15/13 -- - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/27/14 -- - 10 ND ND ND - ND ND ND ND Dry - - ND 3.29 J - ND ND ND 2.32 J ND -- ND ND ug/L 07/15/14 -- - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/20/15 2.10 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND - - - - - - ND ug/L 07/23/15 3.10 - 10 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/12/16 3.10 - 10 ND ND ND - ND ND ND 3.53 J ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 08/01/16 3.10 - 10 ND ND ND ND ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/18/17 3.10 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 07/24/17 3.10 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 11/01/17 3.10 - 10 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 3.10 - 10 ND ND 3.57 J - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/08/18 3.10 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND 5.07 J - ND Dry ND ug/L 01/15/19 3.10 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND 3.86 J - ND Dry ND ug/L 08/14/19 3.10 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/13/20 3.10 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/11/20 3.10 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/26/21 3.10 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 08/25/21 3.10 10.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND 4.10 J ND ug/L 02/09/22 3.10 10.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND 5.38 J -- ND ND ND u /L 08/15/22 3.10 10.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Mercury, NC21- = 1 ug/L ug/L 01/18/17 0.17 - 0.2 ND ND ND - ND ND ND ND ND - - 0.352 ND - ND ND ND ND ND -- ND ND EPA MCL = 2 ug/L ug/L 07/24/17 0.17 - 0.2 ND ND ND - ND ND ND ND 0.706 - - 0.151 B ND - ND ND ND ND - ND Dry 0.114 J (Verification) ug/L 08/24/17 0.17 - 0.2 - -- - - - - - -- 0.165 J - - - - - - - - - - - - ND (Dissolved) ug/L 08/24/17 0.17 - 0.2 - -- - - - - - -- ND - - - - - - - - - - - - - ug/L 11/01/17 0.17 - 0.2 - -- - - - - - -- - - - - - - - - - - - ND - ND u /L 08/08/18 0.15 0200. Dry ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Nickel ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC 21 = 100 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - No EPA MCL ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND 30 ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND 40 - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND ND ND ND 120 ND 410 - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND ND ND ND ND 60 ND 240 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND ND ND ND 82 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND ND ND ND ND ND 120 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND ND ND 68 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND 230 ND ND 81 ND 290 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/30/05 -- - 50 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- - - - - ND ug/L 09/26/06 -- - 50 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- - - - - ND ug/L 01/31/07 -- - 50 6.4 J 2.3 J ND ND ND ND ND ND ND ND ND 3.9 J ND 14.1 J - - - - - - - ND ug/L 07/12/07 -- - 50 6.4 J ND 2.9 J ND ND ND ND ND ND 1.7 J ND 2.7 J ND Dry - - - - - - 5.1 J ND ug/L 01/17/08 -- - 50 3.6 J ND 3.1 J ND ND ND ND 5.8 J 2.6 J ND ND 4.7 J ND Dry - - - - - - ND ND ug/L 07/30/08 -- - 50 2.2 B ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND 12.4 J ug/L 01/21/09 -- - 50 6.2 J ND 3.3 J ND 3.6 J 2.1 J 2.6 J ND 1.9 J 2.7 J ND 7.1 J ND Dry - - - - - - 2 J ND ug/L 07/14/09 -- - 50 4.56 J ND 2.65 B ND 2.03 B 0.986 B 1.57 B 1.22 B 2.17 B 0.893 B ND 4.22 B ND Dry - - - - - - ND 0.882 J ug/L 01/07/10 -- - 50 2.78 J ND ND ND ND ND ND ND ND ND ND 2.82 J ND Dry -- -- -- -- -- - ND ND ug/L 07/20/10 -- - 50 2.42 J ND ND ND ND ND ND 2.4 J ND ND ND 3.49 J ND Dry - - - - - - ND ND ug/L 01/31/11 -- - 50 5.26 J ND 4.5 J ND ND ND 1.9 J ND 3.77 J ND 3.03 J 5.81 J 3.23 J Dry - - - - - - ND ND ug/L 07/18/11 -- - 50 5.98 J ND 2.95 J ND ND ND ND ND 2 J ND ND 5.04 J 2.95 J -- 3.07 J - - - - - ND ND ug/L 01/24/12 -- - 50 7.66 J ND 3.93 J ND 2.36 J 2.73 J 3.26 J 2.29 J 5.92 J 2.89 J 1.96 J 6.07 J 6.1 J - 3.01 J - - - - - ND ND ug/L 07/17/12 -- - 50 5.01 J ND 2.3 J ND ND ND ND ND 1.94 J ND ND 3.32 J 3.74 J - ND - - - - - ND ND ug/L 01/22/13 -- - 50 9.85 J 3.87 J 3.61 J - ND ND 3.52 J 2.28 J Dry ND ND 6.87 J 10.8 J - ND 4.28 J 3.2 J 1.94 J 58 -- ND ND ug/L 07/15/13 -- - 50 4.27 J ND 2.1 J - ND ND ND ND ND - - 6.75 J 4.38 J - ND ND ND ND 40.9 J -- ND ND ug/L 01/27/14 -- - 50 4.79 J ND 3.28 J - ND ND ND ND Dry - - 4.79 J 3.49 J - ND ND ND ND 40.7 J -- ND ND ug/L 07/15/14 -- - 50 4.02 J 2.78 J 2.07 J - ND ND ND ND ND - - 4.21 J ND - ND ND ND ND 40.4 J -- ND ND ug/L 01/20/15 1.80 - 50 4.98 J 2.51 J 2.77 J - ND ND ND ND 9.85 J - - 5.92 J ND - ND - - - - - - ND ug/L 07/23/15 1.80 - 50 3.76 J ND 2.97 J - ND ND ND ND Dry - - 4.75 J 4.14 J - ND ND ND ND 44.1 J -- ND ND ug/L 01/12/16 1.80 - 50 5.27 J ND ND - ND 2.11 J ND ND ND - - 6.77 J ND - ND ND ND ND 42.9 J -- ND ND ug/L 08/01/16 2.20 - 50 3.96 J ND ND ND ND 2.87 J ND ND ND - - 4.06 J 3.1 J - ND ND ND ND 43.7 J -- ND ND ug/L 01/18/17 2.20 - 50 6.93 J ND 4.09 J - ND ND ND ND ND - - 7.85 J 2.25 J - ND ND ND ND 47.3 J -- ND ND ug/L 07/24/17 2.20 - 50 4.30 J ND 3.40 J - ND ND ND ND 7.78 J - - ND 3.36 J - ND ND ND ND - ND Dry ND ug/L 11/01/17 2.20 - 50 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 2.20 - 50 4.27 J ND 3.30 J - 4.69 J ND ND ND 2.28 J - - 8.19 J 3.49 J - ND ND ND ND - 3.24 J Dry ND ug/L 08/08/18 220 10.0 -- 4.46 J ND 2.96 J - ND ND 3.02 J ND ND - - 6.97 J 3.31 J - ND ND ND 2.72 J - 2.75 J Dry ND ug/L 01/15/19 2.20 10.0 -- 5.86 J ND ND - ND 11.1 ND ND 2.30 J - - 9.95 J 3.74 J - ND ND ND 2.36 J - 2.32 J Dry ND ug/L 08/14/19 2.20 10.0 -- 8.69 J ND 3.29 J - ND 3.21 J ND ND ND -- - 7.22 J 3.06 J - ND ND ND ND -- 2.33 J ND ND ug/L 01/13/20 2.20 10.0 -- 6.96 J ND 3.11 J - ND ND ND ND 2.86 J -- - 9.78 J ND - ND ND ND ND -- 2.51 J Dry ND ug/L 08/11/20 2.20 10.0 -- 6.29 J ND 3.29 J - ND ND ND ND 4.57 J -- - 6.93 J ND - ND ND ND ND -- ND ND ND ug/L 01/26/21 2.20 10.0 -- 7.92 J ND 2.97 J - ND ND ND ND 5.70 J -- - 7.32 J 2.29 J - ND ND ND ND -- 3.09 J ND ND ug/L 08/25/21 2.20 10.0 -- 7.22 J 2.30 J 4.45 J - ND ND ND ND 3.49 J -- - 6.80 J - - ND ND ND ND -- ND ND ND ug/L 02/09/22 2.20 10.0 -- 5.96 J ND 3.82 J - ND 2.45 J ND ND ND -- - 10.8 - - ND ND ND ND -- ND ND ND u /L 08/15/22 2.20 10.0 5.69 J ND ND ND ND ND ND ND 7.23 J ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Selenium ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC 21 = 20 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - EPA MCL = 50 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/30/05 -- - 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - - ND ug/L 09/26/06 -- - 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - -- ND ug/L 01/31/07 -- - 10 ND 2.4 B ND ND 2 B ND 2.3 B ND ND ND ND 6.4 J ND ND - - - - - - - 2 J ug/L 07/12/07 -- - 10 ND ND ND ND 3.4 J ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/17/08 -- - 10 2.5 J ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/30/08 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/21/09 -- - 10 ND ND ND ND ND ND ND ND ND 3.7 J ND ND 4.4 J Dry - - - - - - 4.1 J ND ug/L 07/14/09 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/07/10 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 07/20/10 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/31/11 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 07/18/11 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- - ND ND ug/L 01/24/12 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- - 10 ND ND ND - ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- - 10 ND ND ND - ND ND ND ND ND - - ND ND -- ND ND ND ND ND -- ND ND ug/L 01/27/14 -- - 10 ND ND ND - ND ND ND ND Dry - - ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/14 -- - 10 ND ND ND - ND ND ND ND ND - - ND ND -- ND ND ND ND ND -- ND ND ug/L 01/20/15 5.00 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND - - - - - - ND ug/L 07/23/15 5.00 - 10 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/12/16 5.00 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 08/01/16 6.20 - 10 ND ND ND ND ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 01/18/17 6.20 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 07/24/17 6.20 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 11/01/17 6.20 - 10 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 6.20 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/08/18 6.20 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 01/15/19 6.20 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/14/19 6.20 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/13/20 6.20 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L O8111/20 6.20 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/26/21 6.20 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 08/25/21 6.20 10.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 02/09/22 6.20 10.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND u /L 08/15/22 6.20 10.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MW46 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Silver ug/L 10/01/93 -- - -- - -- - - - - - -- - - - - - - - - - - - - - - NC 21 = 20 ug/L ug/L 07/01 /94 -- - -- - -- - - - - - -- - - - - - - - - - - - - - - EPA MCL = 100 ug/L ug/L 10/01 /94 -- - -- - -- - - - - - -- - - - - - - - - - - - - - - ug/L 01/01/95 ug/L 05/01/95 ug/L 10/01/95 ug/L 04/01/96 ug/L 10/01/96 ug/L 04/01/97 ug/L 10/01/97 ug/L 04/01/98 ug/L 10/01/98 ug/L 04/01/99 ug/L 09/01/99 ug/L 05/01/00 ug/L 09/01/00 ug/L 04/01/01 ug/L 10/01/01 ug/L 04/01/02 ug/L 11/01/02 ug/L 05/01/03 ug/L 10/01/03 ug/L 05/01/04 ug/L 11/01/04 ug/L 05/01/05 ug/L 12/01/05 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- - - - ND ug/L 09/26/06 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- - - - ND ug/L 01/31/07 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- - - -- ND ug/L 07/12/07 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- - - ND ND ug/L 01/17/08 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- - - ND ND ug/L 07/30/08 -- - 10 ND ND ND ND ND ND 3.1 J ND ND ND ND ND 2.1 J Dry - - - - - - ND ND ug/L 01/21/09 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 07/14/09 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/07/10 -- - 10 ND ND ND ND ND ND 0.484 J 0.63 J ND ND ND 0.715 J 0.548 J Dry -- -- -- -- -- - 0.714 J ND ug/L 07/20/10 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/31/11 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 07/18/11 -- - 10 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- - ND ND ug/L 01/24/12 -- - 10 2.17 J ND ND 2.36 J 2.11 J 6.57 J 2.91 J ND ND ND 3.06 J ND ND -- ND -- -- -- -- - ND ND ug/L 07/17/12 -- - 10 ND ND ND ND ND ND 5.51 J ND ND 15.3 ND ND ND -- 9.54 J -- -- -- -- - ND ND ug/L 01/22/13 -- - 10 ND 2.7 J ND - ND ND 2.44 J ND Dry 6.29 J ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- - 10 ND 2.55 J 2.69 J - 3.89 J 2.1 J 4.91 J 4.42 J ND - - 2.03 J 2.17 J -- 2.3 J ND ND ND ND -- ND ND ug/L 01/27/14 -- - 10 ND ND ND - 1.93 J ND ND ND Dry - - ND ND - ND ND 4.15 J ND ND -- ND ND ug/L 07/15/14 -- - 10 ND ND ND - 3.26 J ND ND ND ND - - ND ND - 6.25 J 1.96 J ND ND ND -- ND ND ug/L 01/20/15 1.90 - 10 4.77 B 6.84 B 3.14 B - 4.15 B 2.29 B 2.41 B 2.77 B 26.6 - - 29 (8.07 J) 3.71 B - 6.21 B - - - - - - 3.39 J (Verification) ug/L 03/20/15 1.90 - 10 - -- - - - - - -- ND - - - - - - - - - - - - - ug/L 07/23/15 1.90 - 10 ND ND ND - ND ND ND ND Dry - - ND 9.35 J - ND ND ND ND ND -- ND ND ug/L 01/12/16 1.90 - 10 ND ND ND - ND 2.11 J ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 08/01/16 1.90 - 10 ND ND ND ND ND 4.08 J ND ND ND - - ND 12.4 - ND ND ND ND ND -- ND ND ug/L 01/18/17 1.90 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND ND -- ND ND ug/L 07/24/17 1.90 - 10 ND ND ND - ND ND ND ND ND - - ND 1.90 J - ND ND ND ND - ND Dry ND ug/L 11/01/17 1.90 - 10 - -- - - - - - -- - - - - - - - - -- - -- ND Dry ND ug/L 02/20/18 1.90 - 10 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/08/18 1.90 10.0 -- ND ND ND - 2.15 J ND ND 2.48 J ND - - ND 4.02 J - 5.12 J ND ND ND -- ND Dry ND ug/L 01/15/19 1.90 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/14/19 1.90 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/13/20 1.90 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/11/20 1.90 10.0 -- ND ND ND - ND ND ND ND ND - - ND 3.69 B - 2.24 B 2.13 B ND ND -- ND ND 2.17 J ug/L 01/26/21 1.90 10.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 08/25/21 1.90 10.0 -- ND 5.67 J ND - ND ND ND ND ND - - ND - - 2.12 J ND ND ND -- ND ND ND ug/L 02/09/22 1.90 10.0 -- ND 2.15 J ND - ND 3.29 J ND 2.87 J ND - - ND - - ND ND ND ND -- ND ND ND u /L 08/15/22 1.90 10.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Thallium ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC2L=2 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - EPA MCL = 2 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND -- ND ND ND ND ND 7 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND -- ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/30/05 -- - 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - - ND ug/L 09/26/06 -- - 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - -- ND ug/L 01/31/07 -- - 5.5 ND 0.106 J ND ND ND ND ND 0.046 J ND 0.047 J 0.054 J ND ND 0.468 J -- -- -- -- -- - -- ND ug/L 07/12/07 -- - 5.5 ND ND ND ND ND ND ND 0.045 J ND 0.037 J 0.038 J 0.041 J ND Dry -- -- -- -- -- - ND ND ug/L 01/17/08 -- - 5.5 ND ND ND ND 0.049 J 0.06 J ND 0.205 J ND ND 0.042 J 0.086 J ND Dry -- -- -- -- -- - ND ND ug/L 07/30/08 -- - 5.5 ND ND 0.097 J ND 0.066 J 0.072 J ND 0.083 J ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/21/09 -- - 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - -- -- - ND ND ug/L 07/14/09 -- - 5.5 ND ND ND ND 0.084 J ND ND 0.05 J ND ND ND ND ND Dry - - - -- -- - ND ND ug/L 01/07/10 -- - 5.5 ND ND ND ND ND ND ND ND ND ND 0.125 J ND ND Dry -- -- -- -- -- - ND ND ug/L 07/20/10 -- - 5.5 ND ND ND ND ND ND ND 0.157 J ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 01/31/11 -- - 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- - ND ND ug/L 07/18/11 -- - 5.5 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- - ND ND ug/L 01/24/12 -- - 5.5 ND ND ND ND ND ND ND ND ND ND ND ND 0.16 J -- ND -- -- -- -- -- ND ND ug/L 07/17/12 -- - 5.5 ND ND ND ND 0.138 J ND ND ND ND ND ND ND 0.263 J -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- - 5.5 ND ND ND - 0.407 J ND ND ND Dry ND ND ND 0.324 J -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- - 5.5 ND ND ND - ND ND ND ND ND - - ND 0.188 J - ND ND ND ND ND -- ND ND ug/L 01/27/14 -- - 5.5 ND ND ND - ND ND ND ND Dry - - ND 0.142 J - ND ND ND ND 0.135 J -- ND ND ug/L 07/15/14 -- - 5.5 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 0.136 J -- ND ND ug/L 01/20/15 0.110 - 5.5 ND ND ND - ND ND ND ND ND - - ND ND - ND - -- - - - - ND ug/L 07/23/15 0.110 - 5.5 ND ND ND - ND ND ND ND Dry - - ND 0.291 J - ND ND ND ND 0.138 J - ND ND ug/L 01/12/16 0.110 - 5.5 ND ND 0.114 J - ND ND ND ND ND - - ND ND - ND ND ND ND 0.16 J - ND ND ug/L 08/01/16 0.110 - 5.5 ND ND ND ND ND ND ND ND ND - - ND ND - ND ND ND ND 0.156 J - ND ND ug/L 01/18/17 0.110 - 5.5 ND ND 0.349 J - 0.335 J 0.384 J 0.387 J 0.51 J 0.188 J - - 0.502 J 0.225 J -- 0.18 J ND 0.35 J 0.306 J 0.581 J - 0.337 J ND ug/L 07/24/17 0.110 - 5.5 0.147 J 0.152 J ND - 0.134 J ND 0.133 J 0.223 J 0.193 J - - ND ND - ND ND 0.110 J ND - 0.172 J Dry ND ug/L 11/01/17 0.110 - 5.5 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 0.110 - 5.5 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/08/18 0.550 5.00 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.550 5.00 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.220 2.00 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/13/20 0.220 2.00 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.220 2.00 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/26/21 0.220 2.00 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 08/25/21 0.220 2.00 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 02/09/22 0.0600 0.100 -- ND ND ND - ND ND - ND ND - - ND - - ND ND ND 0.0868 J -- 0.0719 J ND ND ug/L 08/15/22 0.220 2.00 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Vanadium ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC2L=7 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - No EPA MCL ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND 150 - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- 14 -- ND 8 160 - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- 16 33 60 ND 55 720 66 1000 - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- 17 33 12 ND 27 330 140 670 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND 55 ND 69 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND 50 ND 48 200 47 220 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND 220 ND ND 290 ND 420 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND 150 ND 210 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- 58 ND 250 ND 92 320 ND 670 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND 68 - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND 85 ND ND 68 - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND 58 ND ND ND 79 - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND 41 ND ND ND - - - - - - - - ug/L 12/30/05 -- - 25 ND ND 42 ND ND ND ND ND ND ND ND ND ND ND - - - - - - - ND ug/L 09/26/06 -- - 25 ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - - ND ug/L 01/31/07 -- - 25 3.4 J 7.4 J ND 1 J 1.4 J 1.7 J 1.2 J 2.5 J ND 28.2 ND 3.2 J 3 J 20.1 - - - - - - - ND ug/L 07/12/07 -- - 25 3.3 J ND 3.6 J ND ND 2.4 J ND ND ND 20.7 J ND ND 4.4 J Dry - - - - - - 5.3 J ND ug/L 01/17/08 -- - 25 3.7 J 2.5 J ND 1.9 J ND 5.6 J 1.4 J 17.7 J 14.8 J 3.8 J 1 J 4.9 J 7.1 J Dry - - - - - - 8.2 J ND ug/L 07/30/08 -- - 25 4.6 J 2.2 J ND ND 3 J 3.3 J 3.9 J 2.9 J ND 15.8 J 1.9 J 2.3 J 6.2 J Dry - - - - - - 8.3 J ND ug/L 01/21/09 -- - 25 3.7 J ND ND ND ND 3.2 J 3 J ND ND 2.4 J 2.5 J 6.9 J 5.9 J Dry - - - - - - 7.9 J ND ug/L 07/14/09 -- - 25 3.41 J 1 J 2.67 J 1.08 J 0.77 J 2.39 J 1.57 J 2.39 J 1.4 J 4.34 J ND 1.77 J 8.99 J Dry - - - - - - 7.11 J ND ug/L 01/07/10 -- - 25 2.71 J 0.912 J ND ND 0.949 J 1.29 J 2.19 J 1.79 J 1.46 J 3.84 J 7.22 J 3.46 J 9.35 J Dry - - - - - - 5.88 J ND ug/L 07/20/10 -- - 25 3.61 J ND 2.88 J ND 4.13 J 2.68 J 3.71 J 12.3 J 1.47 J 6.87 J ND 2.95 J 8.3 J Dry - - - - - - 8.55 J ND ug/L 01/31/11 -- - 25 2.94 J ND ND ND ND 5.46 J 5.52 J 1.57 J ND 4.85 J ND ND 16.5 J Dry - - - - - - 6.72 J ND ug/L 07/18/11 -- - 25 3.12 J ND ND ND ND 1.75 J 2.43 J ND ND 3.24 J ND ND 16.8 J -- 3.08 J - - - - - 7.83 J ND ug/L 01/24/12 -- - 25 2.38 J ND ND ND ND ND 3.24 J ND 9.88 J 2.01 J ND ND 20.4 J -- ND - - - - - 6.19 J ND ug/L 07/17/12 -- - 25 2.95 J ND ND ND ND 1.52 J 3.29 J ND 12.2 J 2.46 J ND ND 23.6 J -- 4.18 J - - - - - 9.15 J ND ug/L 01/22/13 -- - 25 13.6 J ND ND - ND 1.55 J 2.69 J ND Dry ND ND 5.83 J 34.9 -- 1.68 J 22.9 J 4.3 J 6.46 J ND - 7.44 J ND ug/L 07/15/13 -- - 25 2.98 J ND ND - ND 1.48 J ND ND 2.66 J - - 6.04 J 21.3 J - ND 7.48 J 2.4 J ND ND - 7.22 J ND ug/L 01/27/14 -- - 25 2.64 J ND ND - ND ND ND ND Dry - - ND 16.3 J - ND 8.25 J 3.68 J 1.61 J ND - 7.75 J ND ug/L 07/15/14 -- - 25 3.28 J ND ND - ND 1.62 J 5.83 J ND ND - - ND 10.4 J - ND 5.53 J ND ND ND - 6.98 J ND ug/L 01/20/15 1.40 - 25 2.83 J ND ND - ND ND ND ND 3.12 J - - ND 14.9 J - ND - - - - - - ND ug/L 07/23/15 1.40 - 25 2.6 J ND 1.66 J - ND 3.26 J 2.89 J ND Dry - - ND 19.4 J - ND 6.04 J ND ND ND - 8.3 J ND ug/L 01/12/16 1.40 - 25 2.99 J ND ND - ND ND 1.99 J ND ND - - ND 7.77 J - ND 7.85 J ND ND ND - 6.75 J ND ug/L 08/01/16 1.40 - 25 3.34 J ND ND ND ND 3.45 J 1.97 J 1.58 J ND - - ND 13 J - ND 6.45 J ND 1.66 J ND - 8.06 J ND ug/L 01/18/17 1.40 - 25 2.91 J ND ND - ND 2.70 J 2.14 J ND ND - - ND 8.59 J - ND 8.06 J ND 2.45 J ND - 4.9 J ND ug/L 07/24/17 1.40 - 25 2.72 J ND ND - ND 2.51 J 2.15 J ND ND - - ND 9.21 J - ND 7.82 J ND ND - ND Dry ND ug/L 11/01/17 1.40 - 25 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 1.40 - 25 4.37 J ND 2.24 J - 1.60 J 2.93 J ND 2.50 J ND - - 1.62 J 9.34 J - 2.21 J 9.41 J 1.75 J 1.84 J - ND Dry ND ug/L 08/08/18 1.40 10.0 -- 2.92 J ND ND - ND 2.25 J 2.10 J 1.72 J ND - - ND 5.33 J - ND 8.13 J ND 7.37 J - ND Dry ND ug/L 01/15/19 1.40 10.0 -- 3.20 J ND ND - ND 1.57 J ND ND ND - - ND 6.52 J - ND 9.10 J ND 5.16 J - ND Dry ND ug/L 08/14/19 1.40 10.0 -- 2.56 J ND ND - ND ND ND ND ND - - ND 5.07 J - ND 7.26 J ND ND - ND 2.47 J ND ug/L 01/13/20 1.40 10.0 -- 3.08 J ND ND - ND 2.17 J ND 2.09 J ND - - ND 5.80 J - ND 8.23 J ND ND - ND Dry ND ug/L 08/11/20 1.40 10.0 -- 2.44 J ND ND - ND 3.62 J ND 2.39 J ND - - ND 5.08 J - ND 7.97 J ND ND - ND 5.58 J ND ug/L 01/26/21 1.40 10.0 -- 2.52 J ND ND - ND ND ND 2.92 J ND - - ND 6.24 J - ND 7.93 J ND ND - ND 9.25 J ND ug/L 08/25/21 1.40 10.0 -- 3.14 J ND ND - ND 1.70 J ND 4.29 J ND - - ND - - ND 7.13 J ND ND - ND 14.0 ND (Verification Event) ug/L 10/08/21 1.40 10.0 -- - -- - - - -- - -- - - - - - - - -- - - - - 7.19 J ND ug/L 02/09/22 1.40 10.0 -- 2.82 J ND ND - ND ND ND 4.72 J ND - - ND - - ND 8.35 J ND 3.43 J - ND 6.09 J ND ug/L 08/15/22 1.40 10.0 3.85 J ND ND ND ND ND ND ND ND ND 8.06 J ND 2.72 J ND 6.94 J ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW41 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Zinc ug/L 10/01/93 -- - -- 20 -- 30 ND ND - - -- - - - - - - - - - - - - - - NC 21 = 1000 ug/L ug/L 07/01 /94 -- - -- ND -- ND 20 ND - - - - - - - - - - - - - - - - - EPA MCL = 5000 ug/L` ug/L 10/01/94 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- 30 -- 20 20 20 - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- 20 -- 20 120 20 - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND 53.7 176 - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND 70 - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- 52.1 -- 26.2 ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- 22 -- 20 30 110 - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- 35 45 36 11 61 670 91 1600 - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- 32 41 140 32 37 350 180 880 - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND 68 59 - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- 140 ND ND 110 ND 58 58 ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- 64 52 74 ND 52 120 73 110 - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND 70 250 77 270 - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND 100 ND ND 330 ND 480 - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND 170 740 670 - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- 51 ND 940 ND 93 370 ND 920 - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND 90 ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND 3400 - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND 3000 - - - - - - - - ug/L 12/13/05 -- - -- - -- - - - - - -- ND ND ND ND ND 2700 - - - - - - - - ug/L 12/22/05 -- - -- - -- - - - - - -- ND ND ND ND ND 2000 - - - - - - - - ug/L 12/30/05 -- - 50 ND ND ND ND ND ND ND ND ND ND ND ND ND 1500 - - - - - - - ND ug/L 09/26/06 -- - 50 ND ND ND ND ND ND ND ND ND ND ND ND ND 631 - - - - - - - ND ug/L 01/31/07 -- - 10 ND 9.3 J 10.4 ND ND 27.9 ND ND 9.8 J 13.9 ND 1.9 J 2.7 J 562 - - - - - - - ND ug/L 07/12/07 -- - 10 ND ND 12.4 ND ND 6.3 J ND ND 10.6 20.9 ND 5 J ND Dry - - - - - - 4.4 J ND ug/L 01/17/08 -- - 10 1.2 J 2.6 J 7.2 J 2.3 J 1.3 J 6.4 J 2.6 J 21.1 39.1 2.8 J 1.3 J 10.3 2.7 J Dry - - - - - - 3.3 J ND ug/L 07/30/08 -- - 10 4.4 J ND 10 ND ND 19 5.7 J 6.2 J 9.8 J 39.8 ND 9 J ND Dry - - - - - - 22.7 ND ug/L 01/21/09 -- - 10 ND ND 6.8 J ND ND 5.1 J 4.8 J ND 9.3 J 4.2 J 5.1 J 12.9 ND Dry - - - - - - 4.7 J ND ug/L 07/14/09 -- - 10 3.67 J 4.94 J 6.76 J ND 7.18 J ND 5.11 J ND 14.2 4.1 J ND 7.89 J ND Dry - - - - - - 4.47 J ND ug/L 01/07/10 -- - 10 3.29 J 3.78 J 6.75 J 3.86 J 2.49 J 7.49 J 9.39 J 7.74 J 11.7 4.47 J 9.95 J 17 2.41 J Dry - - - - - - 4.68 J ND ug/L 07/20/10 -- - 10 ND 5.96 J 10.4 8.13 J 4.9 J 11.1 7.63 J 16.3 11.2 6.12 J ND 8.11 J ND Dry - - - - - - 12.2 ND ug/L 01/31/11 -- - 10 4.03 J ND 7.83 J 9.2 J ND 7.96 J 9.14 J ND 11.8 5.3 J 4.98 J 5.39 J 14 Dry - - - - - - ND ND ug/L 07/18/11 -- - 10 3.87 J ND 8.8 J 3.93 J ND 5.05 J 7.07 J 4.16 J 14.6 4.44 J ND 4.85 J 16.8 -- 10.4 - - - - - ND ND ug/L 01/24/12 -- - 10 6.31 B ND 5.44 B ND ND ND 5.54 B ND 16.6 B 5.48 B ND ND 24.2 B - 4.45 B - - - - - 4.1 B 9.27 J ug/L 07/17/12 -- - 10 ND ND 9 J ND ND ND 6.43 J ND 16.4 6.22 J ND ND 29.3 - 9.14 J - - - - - 9.21 J ND ug/L 01/22/13 -- - 10 14.1 ND 9.08 J - ND ND 5.63 J ND Dry ND 9.11 J 16.7 57.2 - 30 13.5 7.14 J 9.86 J 15.6 -- ND ND ug/L 07/15/13 -- - 10 ND ND 4.22 J - ND ND ND ND 10.6 - - 11.5 22.6 - ND ND 4.72 J ND 13.8 - ND ND ug/L 01/27/14 -- - 10 4.2 J 4.56 J 7.1 J - 4.23 J 4.41 J 5.69 J 4.15 J Dry - - 5.18 J 20.5 - ND ND 8.8 J 5.52 J 19.9 - 5.85 J ND ug/L 07/15/14 -- - 10 ND ND 6.6 J - ND ND 7.73 J ND 10.9 - - 4 J 9.17 J - ND ND ND ND 15.3 - 4.49 J ND ug/L 01/20/15 3.80 - 10 4.33 J ND 7.31 J - 5.21 J ND 5.14 J ND 20.1 - - 9.04 J 16.1 - ND - - - - - - ND ug/L 07/23/15 3.80 - 10 ND ND 8.4 J - ND ND 4.27 J ND Dry - - ND 24.7 - ND 6.84 J ND ND 18.1 - 6.11 J ND ug/L 01/12/16 3.80 - 10 ND ND 5.04 J - ND ND ND 12.4 10.1 - - ND 4.87 J - ND ND ND ND 14.7 - ND ND ug/L 08/01/16 4.40 - 10 ND ND 6.97 J ND ND ND ND ND 17.6 - - ND 14.3 - 6.73 J ND ND ND 16.5 -- ND ND ug/L 01/18/17 4.40 - 10 ND ND 6.71 J - ND ND ND ND 20.7 - - ND 6.18 J - ND ND ND ND 16.5 -- ND ND ug/L 07/24/17 4.40 - 10 ND ND 7.12 J - ND ND ND ND ND - - 13.1 6.92 J - ND ND ND ND - ND Dry ND ug/L 11/01/17 4.40 - 10 - -- - - - - - -- - - - - - - - - - - - ND Dry ND ug/L 02/20/18 4.40 - 10 ND ND 8.32 J - ND ND ND ND 7.26 J - - ND 6.87 J - ND ND ND ND - ND Dry ND ug/L 08/08/18 4.40 10.0 -- ND ND 9.52 J - ND ND 8.05 J ND 13.7 - - ND 4.99 J - ND 8.49 J ND 9.83 J - ND Dry ND ug/L 01/15/19 4.40 10.0 -- ND ND ND - ND ND ND ND 15.1 - - ND 5.71 J - ND ND ND 8.79 J - ND Dry ND ug/L 08/14/19 4.40 10.0 -- ND 4.86 J 9.07 J - 4.86 J 5.21 J 4.59 J 6.40 J 10.8 - - 7.83 J 7.14 J - ND 5.12 J ND 4.66 J -- 7.24 J 6.19 J ND ug/L 01/13/20 4.40 10.0 -- 4.93 J ND 7.66 J - ND ND 4.83 J ND 16.3 - - 6.54 J 5.30 J - ND 4.66 J 7.60 J 6.95 J - 5.21 J Dry ND ug/L 08/11/20 4.40 10.0 -- ND ND 6.03 J - ND 5.13 J ND ND 13.8 - - 5.19 J 5.99 J - ND ND ND ND - 5.73 J ND ND ug/L 01/26/21 4.40 10.0 -- ND ND ND - ND ND ND ND 15.4 - - ND ND - ND ND ND ND -- ND 4.52 J ND ug/L 08/25/21 4.40 10.0 -- ND 7.86 J 7.91 J - ND ND ND ND 10.8 - - ND - - ND ND ND 5.14 J - ND 5.00 J ND ug/L 02/09/22 4.40 10.0 -- ND ND 8.67 J - ND ND ND ND 17.3 - - 5.26 J - - ND ND ND 8.55 J - ND ND ND u /L 08/15/22 4.40 10.0 ND ND 7.77 J ND ND ND ND 12.5 ND 39.4 ND ND 6.96 J ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW41 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Carbon disulfide ug/L 10/01/93 -- - -- ND -- ND ND ND — — — — — — — — — — — — — — — — — NC21- = 700 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND — — — — — — — — — — — — — — — — No EPA MCL ug/L 10/01/94 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 01/01/95 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 05/01/95 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 10/01/95 -- - -- ND -- ND 170 ND — — -- — — — — — — — — — — — — — — ug/L 04/01/96 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 10/01/96 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 04/01/97 -- - -- ND -- 8.1 ND ND — — -- — — — — — — — — — — — — — — ug/L 10/01/97 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 04/01/98 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 04/01/99 -- - -- ND ND ND 27 ND ND ND ND — — — — — — — — — — — — — — ug/L 09/01/99 -- - -- ND ND ND 23 ND ND ND ND — — — — — — — — — — — — — — ug/L 05/01/00 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 09/01/00 -- - -- ND ND ND 21 ND ND ND ND — — — — — — — — — — — — — — ug/L 04/01/01 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 10/01/01 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 11/04/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND — — — — — — — — ug/L 12/12/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND — — — — — — — — ug/L 12/13/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND — — — — — — — — ug/L 12122/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND — — — — — — — — ug/L 12/30/05 -- — 20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - -- ND ug/L 09/26/06 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - -- ND ug/L 01/31/07 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- - -- ND ug/L 07/12/07 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- — ND ND ug/L 01/17/08 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- — ND ND ug/L 07/30/08 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- — ND ND ug/L 01/21/09 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- — ND ND ug/L 07/14/09 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- — ND ND ug/L 01/07/10 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- — ND ND ug/L 07/20/10 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- — ND ND ug/L 01/31/11 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- — ND ND ug/L 07/18/11 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- — ND ND ug/L 01/24/12 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- — ND ND ug/L 07/17/12 -- — 100 ND ND ND ND ND ND ND ND ND ND ND ND ND -- ND -- -- -- -- -- ND ND ug/L 01/22/13 -- — 100 ND ND ND — ND ND ND ND Dry ND ND ND ND -- ND ND ND ND ND -- ND ND ug/L 07/15/13 -- — 100 ND ND ND — ND ND ND ND ND -- — ND ND — ND ND ND ND ND -- ND ND ug/L 01/27/14 -- — 100 ND ND ND — ND ND ND ND Dry -- — ND ND — ND ND ND ND ND -- ND ND ug/L 07/15/14 -- — 100 ND ND ND — ND ND ND ND ND -- — ND ND — ND ND ND ND ND -- ND ND ug/L 01/20/15 1.5 — 100 ND ND ND — ND ND ND ND ND -- — ND ND — ND — -- — -- — — ND ug/L 07/23/15 1.5 — 100 ND ND ND — ND ND ND ND Dry -- — ND ND — ND ND ND ND ND -- ND ND ug/L 01/12/16 1.5 — 100 ND ND ND — ND ND ND ND ND -- — ND ND — ND ND ND ND ND -- ND ND ug/L 08/01/16 1.5 — 100 ND ND ND ND ND ND ND ND ND — — ND ND — ND ND ND ND ND -- ND ND ug/L 01/18/17 1.5 — 100 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND ND -- ND ND ug/L 07/24/17 1.5 — 100 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND — ND Dry ND ug/L 11/01/17 1.5 — 100 — -- — — — — — -- — — — — — — — -- -- — — ND Dry ND ug/L 02/20/18 1.5 — 100 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND — ND Dry ND ug/L 08/08/18 1.5 5.0 -- ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND -- ND Dry ND ug/L 01/15/19 1.5 5.0 -- ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND -- ND Dry ND ug/L 08/14/19 1.5 5.0 -- ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND -- ND ND ND ug/L 01/13/20 1.5 5.0 -- ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND -- ND Dry ND ug/L 08/11/20 1.5 5.0 -- ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND -- ND ND ND ug/L 01/26/21 1.5 5.0 -- ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND -- ND ND ND ug/L 08/25/21 1.5 5.0 -- ND ND ND — ND ND ND ND ND — — ND — — ND ND ND ND — ND ND ND ug/L 02/09/22 1.5 5.0 -- ND ND ND — ND ND ND ND ND — — ND — — ND ND ND ND — ND ND ND u /L 1 08/15/22 1 1.5 1 5.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND I ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Tetrachloroethene ug/L 10/01/93 -- - -- ND -- ND ND ND - - - - - - - - - - - - - - - - - NC2L=0.7 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - EPA MCL = 5 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 01/01/95 -- - -- 7 -- ND 5 ND - - -- - - - - - - - - - - - - - - ug/L 05/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/95 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/96 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 04/01/97 -- - -- ND -- ND ND ND - - -- - - - - - - - - - - - - - - ug/L 10/01/97 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/99 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/00 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 09/01/00 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/01 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/01 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND - - - - - - - - - - - - - - ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/13/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/22/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND - - - - - - - - ug/L 12/30/05 -- - 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - -- ND ug/L 09/26/06 -- - 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - -- 8.4 ug/L 01/31/07 -- - 3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - -- ND ug/L 07/12/07 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/17/08 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/30/08 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/21/09 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/14/09 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/07/10 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/20/10 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/31/11 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/18/11 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND - ND -- -- -- -- - ND ND ug/L 01/24/12 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND - ND -- -- -- -- - ND ND ug/L 07/17/12 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND - ND -- -- -- -- - ND ND ug/L 01/22/13 -- - 1 ND ND ND - ND ND ND ND Dry ND ND ND ND - ND ND ND ND 0.7 1 - ND ND ug/L 07/15/13 -- - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 3.3 - ND ND ug/L 01/27/14 -- - 1 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND 2.8 - ND ND ug/L 07/15/14 -- - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 4 - ND ND ug/L 01/20/15 0.17 - 1 ND ND ND - ND ND ND ND ND - - ND ND -- ND - - - - - - ND ug/L 07/23/15 0.17 - 1 ND ND ND - ND ND ND ND Dry - - ND ND -- ND ND ND ND 2.2 - ND ND ug/L 01/12/16 0.17 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 2.4 - ND ND ug/L 08/01/16 0.17 - 1 ND ND ND ND ND ND ND ND ND - - ND ND - ND ND ND ND 2.8 - ND ND ug/L 01/18/17 0.17 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 1.8 - ND ND ug/L 07/24/17 0.17 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 11/01/17 0.17 - 1 - -- - - - - - -- - - - - - - - -- -- - - ND Dry ND ug/L 02/20/18 0.17 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/08/18 0.17 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.17 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/14/19 0.17 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/13/20 0.17 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.17 1.0 -- ND ND ND - 0.54 1 ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/26/21 0.17 1.0 -- ND ND ND - 0.45 1 ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 08/25/21 0.17 1.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 02/09/22 0.17 1.0 -- ND ND ND - 0.97 J ND ND ND ND - - ND - - ND ND ND ND - ND ND ND (Verification) ug/L 04/14/22 0.17 1.0 - - -- - - ND - - -- - - - - - - - - -- - - - - - u /L 08/15/22 0.17 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgradient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MW49 MW-16 MW-t MWfi MW-7 MW-71 MW-72 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Toluene ug/L 10/01/93 -- - -- ND -- ND ND ND — — — — — — — — — — — — — — — — — NC21- = 600 ug/L ug/L 07/01/94 -- - -- ND -- ND ND ND — — — — — — — — — — — — — — — — — EPA MCL = 1000 ug/L ug/L 10/01/94 -- - -- ND -- ND ND ND — — — — — — — — — — — — — — — — — ug/L 01/01/95 -- - -- ND -- ND 10 ND — — -- — — — — — — — — — — — — — — ug/L 05/01/95 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 10/01/95 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 04/01/96 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 10/01/96 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 04/01/97 -- - -- ND -- ND ND ND — — -- — — — — — — — — — — — — — — ug/L 10/01/97 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 04/01/98 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 10/01/98 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 04/01/99 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 09/01/99 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 05/01/00 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 09/01/00 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 04/01/01 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 10/01/01 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 04/01/02 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 11/01/02 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 05/01/03 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 10/01/03 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 05/01/04 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 11/01/04 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 05/01/05 -- - -- ND ND ND ND ND ND ND ND — — — — — — — — — — — — — — ug/L 11/04/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND — — — — — — — ND ug/L 12/12/05 -- - -- - -- - - - - - -- ND ND ND ND ND ND — — — — — — — ND ug/L 12/13/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND — — — — — — — ND ug/L 12/22/O5 -- - -- - -- - - - - - -- ND ND ND ND ND ND — — — — — — — ND ug/L 12/30/05 -- — 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND — — — — — — — ND ug/L 09/26/06 -- — 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND — — — — — — -- ND ug/L 01/31/07 -- — 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND — — — — — — -- ND ug/L 07/12/07 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry — — — — — — ND 0.48 J ug/L 01/17/08 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry — — — — — — ND ND ug/L 07/30/08 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry — — — — — — ND ND ug/L 01/21/09 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry — — — — — — ND ND ug/L 07/14/09 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND — — — — — — ND ND ug/L 01/07/10 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry — — — — — — ND ND ug/L 07/20/10 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry — — — — — — ND ND ug/L 01/31/11 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry — — — — — — ND ND ug/L 07/18/11 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND — ND -- -- -- -- -- ND ND ug/L 01/24/12 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND — ND -- -- -- -- -- ND ND ug/L 07/17/12 -- — 1 ND ND ND ND ND ND ND ND ND ND ND ND ND — ND -- -- -- -- -- ND ND ug/L 01/22/13 -- — 1 ND ND ND — ND ND ND ND Dry ND ND ND ND — ND ND ND ND ND -- ND ND ug/L 07/15/13 -- — 1 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND ND -- ND ND ug/L 01/27/14 -- — 1 ND ND ND — ND ND ND ND Dry — — ND ND — ND ND ND ND ND -- ND ND ug/L 07/15/14 -- — 1 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND ND -- ND ND ug/L 01/20/15 0.14 — 1 ND ND ND — ND ND ND ND ND — — ND ND — ND — — — — — — ND ug/L 07/23/15 0.14 — 1 ND ND ND — ND ND ND ND Dry — — ND ND — ND ND ND ND ND -- ND ND ug/L 01/12/16 0.14 — 1 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND ND -- ND ND ug/L 08/01/16 0.14 — 1 ND ND ND ND ND ND ND ND ND — — ND ND — ND ND ND ND ND -- ND ND ug/L 01/18/17 0.14 — 1 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND ND -- ND ND ug/L 07/24/17 0.14 — 1 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND — ND Dry ND ug/L 11/01/17 0.14 — 1 — -- — — — — — -- — — — — — — — -- -- — — ND Dry ND ug/L 02/20/18 0.14 — 1 ND ND ND — ND ND ND ND ND — — ND ND — ND ND ND ND — ND Dry ND ug/L 08/08/18 0.14 1.0 -- ND ND ND -- ND ND ND ND ND — — ND ND — ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.14 1.0 -- ND ND ND -- ND ND ND ND ND — — ND ND — ND ND ND ND -- ND Dry ND ug/L O8114/19 0.14 1.0 -- ND ND ND -- ND ND ND ND ND — — ND ND — ND ND ND ND -- ND ND ND ug/L 01/13/20 0.14 1.0 -- ND ND ND -- ND ND ND ND ND — — ND ND — ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.14 1.0 -- ND ND ND -- ND ND ND ND ND — — ND ND — ND ND ND ND -- ND ND ND ug/L 01/26/21 0.14 1.0 -- ND ND ND -- ND ND ND ND ND — — ND ND — ND ND ND ND -- ND ND ND ug/L 08/25/21 0.14 1.0 -- ND ND ND — ND ND ND ND ND — — ND — — ND ND ND ND -- ND 7.7 ND ug/L 02/09/22 0.14 1.0 -- ND ND ND — ND ND ND ND ND — — ND — — ND ND ND ND -- ND ND ND u /L 08/15/22 0.14 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND \\',I) GOLDER November 2022 Project No. GL21456818 Table 4 Summary of Detected Constituents in Groundwater for the Municipal Solid Waste Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Upgredient MSW Wells Sidegradient and Downgradient MSW Wells French Drain Blanks MWA MW-16 MW-1 MWfi MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Trichlorofluoromethane ug/L 01/31/07 -- - 5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND -- -- -- -- -- -- -- ND NC 2L=2000 ug/L ug/L 07/12/07 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND No EPA MCL ug/L 01/17/08 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry -- -- -- -- -- -- ND ND ug/L 07/30/08 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - - ND ND ug/L 01/21/09 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/14/09 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - ND ND ug/L 01/07/10 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/20/10 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 01/31/11 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND Dry - - - - - - ND ND ug/L 07/18/11 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND ND - - - - - - ND ND ug/L 01/24/12 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND - ND - - - - - ND ND ug/L 07/17/12 -- - 1 ND ND ND ND ND ND ND ND ND ND ND ND ND - ND - - - - - ND ND ug/L 01/22/13 -- - 1 ND ND ND - ND ND ND ND Dry ND ND ND ND - ND ND ND ND 0.99 J -- ND ND ug/L 07/15/13 -- - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 1.1 -- ND ND ug/L 01/27/14 -- - 1 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND 0.87 J -- ND ND ug/L 07/15/14 -- - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 1.2 -- ND ND ug/L 01/20/15 0.24 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND - -- - - - - ND ug/L 07/23/15 0.24 - 1 ND ND ND - ND ND ND ND Dry - - ND ND - ND ND ND ND 0.99 J -- ND ND ug/L 01/12/16 0.24 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 1.1 -- ND ND ug/L 08/01/16 0.24 - 1 ND ND ND ND ND ND ND ND ND - - ND ND - ND ND ND ND 0.66 J -- ND ND ug/L 01/18/17 0.24 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND 3.1 -- ND ND ug/L 07/24/17 0.24 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 11/01/17 0.24 - 1 - -- - - - - - -- - - - - - - - - -- - - ND Dry ND ug/L 02/20/18 0.24 - 1 ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND - ND Dry ND ug/L 08/08/18 0.24 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 01/15/19 0.24 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L O8/14/19 0.24 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/13/20 0.24 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND Dry ND ug/L 08/11/20 0.24 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 01/26/21 0.24 1.0 -- ND ND ND - ND ND ND ND ND - - ND ND - ND ND ND ND -- ND ND ND ug/L 08/25/21 0.24 1.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND ug/L 02/09/22 0.24 1.0 -- ND ND ND - ND ND ND ND ND - - ND - - ND ND ND ND -- ND ND ND u /L 08/15/22 0.24 1.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND Notes: ug/L = micrograms per liter mg/L = milligrams per liter S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit pS/cm= microsiemens per centimeter mV = millivolts -= no data available or not established B = blank -qualified result J = Prior to the August 2018 event, J flags are estimated values below the SWS Reporting limit. Beginning with the August 2018 event, J flags are estimated values between MDL and MRL. Blanks = field, trip and method blanks Shaded = Concenire0ons above the current NC 2L or Solid Waste Section Groundwater Protection Standards have been shaded. MW-3, MW-4, MW-5, MW-10, MW-14 and MW-15 are abandoned monitoring wells and data are not included on this table. SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/31/07 MDL = Laboratory method detection limit MRL = Laboratory method reporting limit 1) Historical data prior to September 2006 provided by Rowan County. 2) Well MW-24 was replaced by MW-24R prior to the July 2011 sampling event. 3) MW-25, MW-26, MW-27, MW-27A, and MW-28 were installed prior to the January 2013 sampling event to monitor the Phase IV expansion. 4) MW-9 and MW-16 are designated as the new upgredient compliance monitoring wells per the approved revised 2013 groundwater monitoring plan. 5) Results in parentheses represent reanalyzed data. 6) MW-28 was replaced by MW-28R after the January 2017 sampling event. 7) The following dilutions were noted for the August 2022 event: Antimony and Thallium (2x). \\',I) GOLDER November 2022 Project No. GL21456818 Table 5 Summary of Groundwater Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Unite Sample Date SWS Reporting Upgradlent MSW Wells Sidegradlent and Downgradlent MSW Wells French Drain ConstiNents/Anatytes Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R pH S.U. 11/04/05 - -- - - - -- - -- -- 5.51 6.00 5.13 5.40 9.61 5.46 - - - - -- - -- (field) S.U. 1V12/05 - -- - - - -- - -- -- 5.62 5.21 5.34 5.45 9.56 5.32 - - - - -- - -- S.U. 12/13/05 - -- - - - -- - -- -- 5.65 5.42 5.60 5.45 9.56 5.55 - - - - -- - S.U. 12/22/05 - -- - -- - -- - -- -- 5.59 5.50 5.50 5.65 9.42 5.42 - - - - -- - S.U. 12/30/05 - 5.85 6.85 5.44 6.67 5.94 6.38 6.05 5.96 5.45 5.96 5.24 5.40 9.52 5.65 - - - - -- - S.U. 09/26/06 - 5.73 6.62 4.50 6.74 5.83 6.30 5.64 5.57 4.86 6.10 5.97 5.34 6.69 6.53 - - - - -- - -- S.U. 01/31/07 - 5.82 6.07 5.65 6.26 6.44 6.35 6.15 6.06 5.13 6.05 6.34 7.06 6.15 6.91 - - - - -- - -- S.U. 07/12/07 - 6.15 6.27 6.54 6.26 6.24 5.78 6.03 5.56 5.30 5.58 6.05 5.46 5.63 Dry - - -- - -- - 6.73 S.U. 01/17/08 - 6.11 6.04 5.71 6.68 6.68 7.29 6.51 6.40 5.81 6.05 6.20 6.17 6.63 Dry - - -- - -- - 6.20 S.U. 07/30/08 - 5.88 6.15 5.32 7.24 5.94 7.07 6.51 6.13 5.62 5.88 5.73 6.44 6.45 Dry - - -- - -- - 6.15 S.U. 01/21/09 - 5.66 6.85 4.91 6.18 5.31 5.62 5.95 5.52 5.00 5.25 5.34 6.81 6.86 Dry -- - -- - -- - 6.41 S.U. 07/14/09 - 6.50 6.55 5.22 6.42 6.46 5.68 4.96 5.49 4.98 5.70 4.81 5.48 6.82 Dry -- - -- - -- - 5.59 S.U. 01/07/10 - 6.07 6.33 5.46 7.11 6.40 6.13 6.33 6.01 5.20 6.35 6.04 6.05 6.16 Dry -- - -- - -- - 6.68 S.U. 07/20/10 - 6.50 6.78 5.34 7.61 5.78 6.91 5.74 5.74 5.05 6.36 5.97 5.59 6.86 Dry -- - -- - -- - 6.82 S.U. 01/31/11 - 5.44 5.69 4.59 6.98 5.35 5.34 5.25 5.37 4.33 6.61 4.86 5.36 6.57 Dry -- - -- - -- - 6.16 S.U. 07/18/11 - 5.27 5.72 4.52 6.60 4.86 5.37 5.12 5.13 3.83 6.61 4.33 5.26 6.38 - 5.10 - -- - -- - 6.18 S.U. 01/24/12 - 5.68 5.94 4.89 6.87 5.58 5.47 5.52 5.53 4.95 6.75 5.25 5.58 6.53 - 5.77 - -- - -- - 6.84 S.U. 07/17/12 - 5.54 6.08 4.73 6.43 5.25 5.22 5.18 5.23 4.74 6.43 5.10 5.59 6.59 - 5.19 - -- - -- - 5.89 S.U. 01/22/13 - 5.54 5.91 5.04 - 5.25 5.48 5.51 5.43 Dry 5.80 5.32 5.56 6.66 - 5.11 6.16 5.54 5.47 4.47 - 6.55 S.U. 07/15/13 - 4.76 5.48 4.01 - 4.35 4.22 4.67 4.55 3.17 - -- 3.65 5.19 - 4.45 4.65 4.08 4.86 4.11 - 4.94 S.U. 01/27/14 - 5.67 6.05 5.12 - 5.79 5.54 5.55 5.51 Dry - -- 5.66 6.58 - 5.66 6.11 5.31 5.88 4.38 - 6.56 S.U. 07/15/14 - 5.58 6.34 5.06 - 5.40 5.57 5.60 5.36 4.95 - -- 5.62 6.65 - 5.70 5.78 5.09 5.39 4.04 - 6.66 S.U. 01/20/15 - 5.44 5.58 4.60 - 6.50 5.70 6.02 5.98 4.46 - -- 6.20 7.13 - 4.76 - -- - -- - -- (Verification) S.U. 03/20/15 - -- - -- - -- 4.74 S.U. 07/23/15 - 4.72 5.17 5.89 - 5.25 5.04 5.30 5.19 Dry - -- 4.26 5.85 - 4.33 5.35 4.69 5.24 3.30 - 6.20 S.U. 01/12/16 - 5.29 5.62 5.01 - 5.43 5.53 5.55 5.37 5.40 - -- 5.50 6.52 - 5.35 5.81 5.20 5.53 4.09 - 5.92 S.U. 08/01/16 - 5.29 5.67 5.27 5.04 5.69 5.44 5.07 5.11 -- - -- 5.05 5.89 - 4.75 5.66 4.45 4.78 3.85 - 5.77 S.U. 01/17/17 - 5.33 5.86 6.24 - 5.07 5.20 5.02 5.08 4.66 - -- 5.02 5.86 - 5.08 5.54 4.87 5.00 3.88 - Dry S.U. 07/24/17 - 5.30 5.77 5.08 - 5.43 5.38 5.30 5.31 6.75 - -- 5.08 5.86 - 5.34 5.45 4.83 5.00 -- 5.20 Dry -- 4.75 _ -- _ -- _ -- - 4.76 - -- - -- S.U. 11/01/17 - -- - -- - -- - -- -- -- - -- - -- - -- - -- - -- 5.23 -- S.U. 02/20/18 - 5.87 6.08 5.17 - 5.55 5.46 5.37 5.35 Dry - -- 5.58 6.38 - 5.43 6.12 5.51 5.78 -- 4.96 Dry S.U. 08/08/18 - 5.57 6.01 5.21 - 5.19 5.48 5.41 5.33 4.82 - -- 5.40 6.59 - 5.26 5.94 5.40 5.46 -- 4.89 Dry S.U. 01/15/19 - 5.58 6.11 5.58 - 5.80 5.79 5.46 5.38 4.58 - -- 5.56 6.42 - 5.54 6.06 5.42 5.79 -- 5.05 Dry S.U. 08/13/19 - 5.63 6.03 5.15 - 5.54 5.70 5.50 5.32 4.80 - -- 5.37 6.24 - 5.55 6.06 5.08 5.51 -- 4.91 6.58 S.U. 01/13/20 - 5.42 6.00 4.97 - 5.29 5.55 5.28 4.99 3.73 - - 5.31 6.17 - 5.52 5.87 5.09 5.57 -- 4.63 Dry S.U. 08/10/20 - 5.42 5.84 5.06 - 5.41 5.33 5.19 5.21 4.35 - - 5.31 6.11 - 5.03 5.94 4.79 5.22 -- 4.60 5.51 S.U. 01/26/21 - 5.50 6.00 5.01 - 5.47 5.37 5.16 4.45 4.30 - - 5.19 6.11 - 5.40 5.91 5.12 5.38 -- 4.67 5.49 S.U. 08/24/21 - 5.83 6.34 5.23 - 5.76 5.58 5.55 5.73 4.92 - -- 5.78 - - 5.35 6.16 5.50 5.79 -- 5.26 6.10 (Verification) S.U. 10/08/21 - -- - -- - S.U. 02/09/22 - 5.37 6.10 4.88 - 5.40 5.58 5.47 5.28 5.00 - -- 5.48 -- - 5.65 5.89 5.15 5.53 -- 4.78 6.02 (Verifcaition) S.U. 04/14/22 - -- - -- - 4.95 S.U. 08/15/22 6.30 6.05 6.00 6.47 5.84 5.71 5.67 5.40 5.56 5.86 6.72 7.57 7.04 5.78 6.29 Specific Conductivity PS/cm 11/04/05 - -- - -- 79 118 54 136 183 108 (field) pS/cm 12/12/05 - -- - -- - -- - -- -- 85 110 100 140 165 110 -- - -- - -- - -- pS/cm 12/t3/05 - -- - -- - -- - -- -- 90 125 95 130 145 110 p8/cm 12/22/05 - -- - -- - -- - -- -- 75 130 110 140 140 100 -- - -- - -- - - pS/cm 12 OMS - 245 310 145 115 95 105 165 95 80 115 65 140 175 105 -- - -- - -- - - PS/Cm 09/26/06 - 185 188 90 94 70 82 119 103 44 81 36 87 156 58 -- - -- - -- - - pS/cm 01/31/07 - 247 225 101 106 76 109 145 118 41 124 30 96 181 91 -- - -- - -- - -- PS/Cm 07/12/07 - 183 177 80 88 64 76 119 99 38 91 25 82 154 Dry -- - -- - -- - 122 pS/cm 01/17/08 - 215 218 118 121 96 115 151 137 48 81 43 106 213 Dry -- - -- - -- - 160 PS/Cm 07/30/08 - 211 212 111 130 93 118 154 132 42 91 46 121 179 Dry -- - -- - -- - 165 PS/Cm 01/21/09 - 195 222 83 107 166 174 103 86 42 66 43 87 140 Dry -- - -- - -- - 140 PS/an 07/14/09 - 203 210 81 103 79 91 132 113 45 81 36 108 168 Dry -- - -- - -- - 144 PS/Cm 01/07/10 - 197 205 78 96 51 109 137 99 43 77 34 99 154 Dry -- - -- - -- - 139 PS/Cm 07/20/10 - 214 191 82 103 68 91 135 110 47 98 31 119 143 Dry -- - -- - -- - 143 PS/an 01/31/11 - 190 185 83 95 73 104 135 106 46 82 31 131 152 Dry -- - -- - -- - 135 PS/Cm 07/18/11 - 194 200 83 95 74 98 132 108 50 86 32 134 166 - 86 - -- - -- - 150 PS/an 01/24/12 - 191 200 76 98 76 108 128 99 42 82 43 126 163 - 86 - -- - -- - 145 PS/am 07/17/12 - 157 212 74 80 63 73 91 84 40 74 43 109 156 - 70 - -- - -- - 117 PS/an 01/22/13 - 199 168 106 - 63 72 88 80 Dry 49 44 103 118 - 66 69 69 51 74 - 146 PS/Cm 07/15/13 - 182 290 65 - 75 88 109 100 39 - -- 125 142 - 78 88 71 78 116 - 142 PS/an 01/27/14 - 209 285 84 - 95 125 139 113 Dry - -- 148 170 - 98 114 94 100 146 - 163 PS/Cm 07/15/14 - 209 293 114 - 86 104 121 127 67 - -- 153 158 - 92 97 86 77 139 - 157 PS/an 01/20/15 - 169 196 88 - 81 85 109 101 70 - - 139 128 - 77 - -- - -- - - (Velifloatlon) PS/Cm 03/20/15 - -- - -- - -- - -- - 51 - -- - -- - -- - -- - -- - -- PS/cm 07/23/15 - 163 197 95 - 66 82 111 94 Dry - -- 128 125 - 61 75 67 65 111 - 118 PS/Cm 01/12/16 - 171 221 102 - 71 96 122 92 42 - -- 130 127 - 66 89 75 78 120 - 155 PS/an 08/01/16 - 182 248 108 106 77 95 127 110 - - -- 135 133 - 67 90 79 81 131 - 131 PS/Cm 01/17/17 - 162 205 112 - 69 83 117 99 56 - -- 131 112 - 57 86 72 77 111 - Dry PS/an 07/24/17 - 180 238 94 - 71 81 108 99 60 - -- 148 118 - 58 98 82 102 -- 82 Dry (Verification) PS/Cm 08/25/17 - -- - 94 - -- - -- -- 54 - -- - -- - -- - 79 - -- - -- pS/cm 11/01/17 - -- - -- - pS/cm 02/20/18 - 178.0 246.0 74.0 - 84.2 94.2 132.6 108.3 Dry - -- 167.6 124.8 - 65.4 111.0 80.0 99.0 -- 59.0 Dry PS/an 08/08/18 - 181.7 287.1 105.2 - 86.7 88.9 129.1 117.4 80.1 - -- 171.5 121.7 - 67.9 110.5 89.7 103.4 -- 62.0 Dry PS/Cm 01/15/19 - 170.9 240.5 119.8 - 79.8 85.3 131.2 78.3 49.5 - -- 171.6 116.0 - 61.7 102.0 76.6 99.5 -- 57.0 Dry PS/an 08/13/19 - 194.4 209.8 98.1 - 73.3 76.3 116.6 102.4 35.6 - -- 163.4 116.5 - 58.5 90.1 71.8 103.2 -- 53.2 162.1 PS/Cm 01/13/20 - 196.2 213.9 70.6 - 58.2 90.5 139..5 75.0 40.7 - -- 125.4 79.0 - 72.1 71.5 50.9 105.2 -- 37.2 Dry PS/an 08/10/20 - 190.8 195.5 97.9 - 76.4 73 114.3 102.3 37.7 - -- 153.7 114.3 - 63.5 97.6 68.5 102.3 -- 56.6 150.9 PS/Cm 01/26/21 - 217.1 211.2 117.3 - 92.6 74.4 116.3 83.9 48.3 - -- 159.1 120.1 - 66.5 119.0 102.6 145.2 -- 58.0 109.1 PS/an 08/24/21 - 184.6 176.4 90.2 - 75.8 72.8 114.8 93.1 37.8 - -- 142.3 -- - 67.5 103.3 65.2 87.9 -- 57.9 137.0 (Verification) PS/Cm 10/08/21 - -- - - - -- - -- -- -- - -- - -- - - - -- - -- - 144.8 PS/an 02/09/22 - 148.2 175.3 77.0 - 66.7 76.8 115.3 75.9 182.0 - -- 182.9 -- - 69.1 94.1 50.7 75.7 -- 55.9 413.2 (Verification) PS/Cm 04/14/22 - -- - - - 71.0 - -- -- -- - -- - -- - - - -- - -- - -- PS/cm 08/15/22 172.9 190.0 102.7 80.2 73.7 108.7 98.5 53.6 166.5 67.6 112.0 58A 92.8 56.9 146.2 \\1�D GOLDER Page 1 W 3 November 2022 Project No. GL21456818 Table 5 Summary of Groundwater Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Unite Sample Date SWS Reporting Upgradient MSW Wells Sidegradlent and Downgradlent MSW Wells French Drain Constituents/Analytes Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Temperature 'C 11/04/05 - -- - - - - - -- -- 18.30 18.10 18.20 17.50 17.30 17.30 - - - - -- - -- (field) °C 12/12/05 - -- - - - -- 18.40 18.00 18.00 18.20 17.80 18.20 'C 12/13/05 - - - - - -- - -- -- 18.40 18.20 18.60 18.40 17.80 18.20 - - - - -- - - "C 12/22/05 - -- - - - -- - -- -- 18.40 18.60 18.20 18.40 17.60 18.40 - - - - -- - - 'C 12/30/05 - 18.40 17.20 18.20 18.00 18.20 18.20 18.20 18.20 18.20 18.20 18.40 18.40 17.80 18.20 - - - - -- - - "C 09/26/06 - 17.40 18.50 17.00 18.90 19.40 19.20 19.60 19.00 17.70 17.40 18.00 17.90 18.60 18.40 -- - - - -- - -- 'C 01/31/07 - 11.20 12.40 10.80 13.80 15.60 10.50 9.90 11.30 11.10 11.90 13.40 14.80 13.00 11.90 -- - - - -- - -- "C 07/12/07 - 18.44 18.85 17.92 18.75 19.57 18.05 19.70 17.64 18.48 18.87 18.40 19.72 19.89 Dry -- - - - -- - 18.99 'C 01/17/08 - 12.81 11.06 11.77 12.39 14.68 11.84 10.47 11.62 12.09 11.26 12.97 12.56 14.17 Dry -- - - - -- - 15.39 "C 07/30/08 - 18.82 18.61 18.48 20.09 19.37 19.43 20.50 18.58 19.86 17.39 18.25 19.98 20.15 Dry -- - - - -- - 20.71 'C 01/21/09 - 13.24 11.98 13.26 15.56 13.96 13.09 11.73 13.55 14.42 14.03 14.86 15.92 17.69 Dry -- - -- - -- - 14.51 "C 07/14/09 - 17.34 17.39 16.38 17.25 17.74 17.02 17.63 15.23 17.81 17.20 17.02 17.23 18.45 Dry -- - -- - -- - 19.37 'C 01/07/10 - 14.02 14.11 14.16 15.20 14.26 11.47 11.02 14.05 14.45 14.20 13.41 13.35 14.69 Dry -- - -- - -- - 15.56 "C 07/20/10 - 19.97 20.93 17.51 18.95 19.71 19.40 20.01 17.97 19.40 18.71 20.30 20.10 19.01 Dry -- - -- - -- - 21.47 'C 01/31/11 - 13.09 11.89 12.99 13.74 14.63 11.81 10.88 12.55 12.87 13.17 13.17 12.78 13.04 Dry -- - -- - -- - 14.99 "C 07/18/11 - 20.02 20.96 18.45 20.41 17.66 18.27 16.96 17.70 19.93 18.97 19.47 19.31 19.57 - 20.80 - -- - -- - 20.14 'C 01/24/12 - 13.60 13.53 14.91 15.19 16.13 13.03 13.05 14.77 14.16 16.03 17.09 16.66 16.37 - 13.12 - -- - -- - 17.57 "C 07/17/12 - 17.74 22.12 19.32 20.10 20.69 16.76 17.20 17.49 19.65 20.53 21.02 19.60 22.85 - 19.97 - -- - -- - 20.18 'C 01/22/13 - 14.73 12.77 9.16 - 16.45 11.47 11.65 13.08 Dry 17.62 19.10 15.77 13.57 - 16.42 18.02 18.53 14.16 17.66 - 16.90 "C 07/15/13 - 19.08 20.03 18.69 - 19.18 17.76 17.34 16.03 17.94 - -- 20.42 19.29 - 20.29 19.65 19.18 17.79 20.18 - 19.75 'C 01/27/14 - 16.0 14.8 15.9 - 14.0 13.2 13.3 14.5 Dry - -- 16.7 16.6 - 16.5 14.3 13.9 10.3 13.5 - 16.3 "C 07/15/14 - 18.5 26.8 17.0 - 17.6 14.8 15.2 14.3 20.1 - -- 18.7 19.1 - 17.1 18.6 18.3 16.7 17.7 - 20.5 'C 01/20/15 - 15.1 14.9 15.3 - 14.9 12.8 13.1 13.9 16.5 - -- 15.0 14.7 - 15.9 - -- - -- - -- (Verifica6on) °C 03/20/15 - - - - - -- - 13.6 'C 07/23/15 - 18.7 19.2 20.9 - 17.6 17.1 18.0 16.2 Dry - - 19.5 22.6 - 19.8 18.8 18.5 17.4 19.0 - 19.7 'C 01/12/16 - 15.2 13.2 14.4 - 14.8 13.4 14.2 14.9 12.2 - - 14.6 14.6 - 13.4 13.7 14.1 12.3 15.7 - 9.1 'C 08/01/16 - 20.5 21.0 17.6 19.0 18.9 18.2 18.4 17.3 -- - - 20.1 20.1 - 19.2 19.5 19.5 18.4 19.5 - 21.7 'C 01/17/17 - 15.7 15.1 17.2 - 16.5 15.3 14.8 15.6 14.8 - - 16.7 16.6 - 17.3 15.6 16.8 14.5 17.3 - Dry 'C 07/24/17 - 18.8 22.8 20.5 - 19.0 18.6 17.0 16.6 19.3 - - 18.5 20.6 - 19.1 18.5 19.8 17.7 -- 19.0 Dry (Verification) °C 08/25/17 - - - 19.0 - -- - -- - 21.6 - - - -- - - - 18.5 - - - -- 'C 11/01/17 _ _ _ -- _ -- _ _ _ -- _ _ _ -- _ _ _ -- _ _ 16.9 -- 'C 02/20/18 - 15.6 15.3 15.7 - 16.1 13.8 13.7 14.7 Dry - - 17.7 19.0 - 16.7 17.0 17.3 13.8 - 17.4 Dry 'C 08/08/18 - 23.0 22.1 20.8 - 17.2 18.2 18.5 15.9 19.6 - - 19.0 21.9 - 18.2 18.1 18.6 17A - 1&6 Dry 'C 01/15/19 - 14.2 13.5 13.7 - 15.8 13.7 13.3 14.2 14.2 - - 16.5 16.4 - 15.5 14.8 15.5 12.9 - 17.1 Dry 'C 08/13/19 - 22.5 22.6 22.7 - 17.8 20.1 17.2 17.4 19.7 - - 20.6 22.0 - 19.7 18.5 19.0 18.4 - 20.8 33.8 "C 01/13/20 - 16.2 15.0 15.9 - 16.0 15.1 14.4 15.2 15.7 - - 17.0 16.6 - 16.0 16.0 16.4 14.5 -- 17.2 Dry 'C 08/10/20 - 21.8 22.6 21.4 - 20.5 18.7 17.3 19.0 20.1 - - 20.1 21.3 - 20.4 18.5 19.3 18.3 - 20.0 23.2 "C 01/26/21 - 14.1 13.0 14.9 - 15.1 12.9 12.6 12.5 14.7 - - 16.0 14.1 - 14.1 14.8 15.8 12.9 - 16.6 15.3 'C 08/24/21 - 20.1 21.3 18.5 - 21.3 18.2 18.3 16.7 19.0 - - 20.9 -- - 20.2 19.0 19.2 20.4 - 19.2 24.5 (Verification) °C 10/08/21 - - - -- - -- 'C 02/09/22 - 14.1 12.9 14.5 - 16.3 13.3 12.7 13.0 16.8 - - 17.1 -- - 15.2 15.6 16.1 13.7 - 1&8 18.0 (Verificafion) °C 04/14/22 - - - -- - 17.6 - -- - 'C 08/15/22 18.3 18.1 17.4 18.3 17.0 17.0 17.3 17.3 19.2 17.8 17.5 18.4 1&6 19.3 22.1 Turbidity NTU 1V30/05 - - - -- - -- - -- -- -- - -- - -- - -- - -- - - - -- (field) NTU 09/26/06 - 81.1 42.3 69.7 52.1 162 75.2 39.8 85.7 74.2 579 82.5 74.5 63.1 708 -- - -- - - - -- NTU 01/31/07 - 13.1 134 73 47.1 207 15.4 34.2 60.5 92.6 >1000 139 73 48 313 -- - -- - - - -- NTU 07/12/07 - 0 0 42.9 0 0 0 0 0 0 889 0 0 0 Dry -- - -- - - - 0.00 NTU 01/17/08 - 15.1 4.60 8.64 1.27 2.38 37.4 9.00 141 33.4 71.4 8.73 58.5 20.1 Dry -- - -- - -- - 1.59 NTU 07/30/08 - 27.2 4.62 8.58 35.0 41.8 24.0 13.4 31.3 14.2 430 15.7 104 2.88 Dry -- - -- - -- - 3.64 NTU 01/21/09 - 7.89 21 9.24 3.9 7.07 31.8 14.8 22.1 8.76 34.2 22.8 54.4 3.8 Dry -- - -- - -- - 26.4 NTU 07/14/09 - 11.9 6.86 24.0 3.45 6.42 21.0 9.39 12.6 22.6 62.3 17.5 22.3 2.91 Dry -- - -- - -- - 1.26 NTU 01/07/10 - 8.33 18.9 3.40 4.14 7.43 0.21 14.5 22.7 14.6 32.7 110 59.2 27.2 Dry -- - -- - -- - 2.66 NTU 07/20/10 - 14.6 5.96 25.1 17.7 12.6 8.00 21.6 201 13.7 145 12.7 23.0 5.16 Dry -- - -- - -- - 9.82 NTU 01/31/11 - 0.93 0.58 3.82 1.09 4.12 45.7 58.1 10.7 9.65 18.3 8.64 7.52 91.3 Dry -- - -- - -- - 0.45 NTU 07/18/11 - 0.62 0.40 9.83 2.98 4.44 4.61 8.78 2.36 10.4 14.7 1.78 1.48 30.8 - 9.12 - -- - -- - 1.72 NTU 01/24/12 - 1.40 1.04 1.13 1.45 4.61 6.67 67.1 8.52 83.8 37.3 3.04 1.47 123 - 24.7 - -- - -- - 5.00 NTU 07/17/12 - 5.68 3.49 7.17 4.40 13.4 6.25 48.1 8.65 77.5 36.9 5.37 6.75 215 - 64.4 - -- - -- - 10.0 NTU 01/22/13 - 82.80 2.33 35.6 - 2.13 19.6 47.3 7.51 Dry 6.35 6.18 12.5 226 - 12.7 152.0 77.0 71.7 22.8 - 5.31 NTU 07/15/13 - 1.33 1.36 3.10 - 8.19 3.06 4.65 4.51 44.7 - -- 59.3 130 - 2.45 5.19 34.9 8.65 15.5 - 8.55 NTU 01/27/14 - 2.52 0.52 4.48 - 3.23 1.34 1.15 9.53 Dry - -- 4.82 93.1 - 1.69 1.98 13.8 16.4 22.1 - 2.98 NTU 07/15/14 - 1.42 1.28 7.60 - 1.36 2.92 83.7 5.26 4.26 - -- 4.60 64.7 - 2.80 1.17 4.00 5.11 20.5 - 5.59 NTU 01/20/15 - 2.29 0.71 5.13 - 1.25 0.46 4.7 5.10 26.8 - -- 6.04 81.3 - 4.42 - -- - - - -- (Verification) NTU 03/20/15 - -- - -- - -- - -- -- 15.7 - -- - -- - -- - -- - - - -- NTU 07/23/15 - 2.70 0.91 1.93 - 1.76 7.59 10.2 5.64 Dry - -- 2.63 177 - 1.22 6.98 5.12 12.3 12.2 - 4.75 NTU 01/12/16 - 1.00 0.85 4.44 - 0.57 29.90 17.6 7.45 10.3 - -- 0.97 118 - 1.07 8.77 3.11 13A 5.5 - 9.39 NTU 08/01/16 - 0.42 0.95 3.76 2.89 1.32 22.7 5.30 4.75 -- - -- 2.16 83.3 - 1.41 0.81 11.9 13.1 13.2 - 4.03 NTU 01/17/17 - 0.91 0.42 6.62 - 1.28 25.3 26.6 5.21 33.2 - -- 3.55 37.9 - 1.38 3.47 8.9 4&0 11.8 - Dry NTU 07/24/17 - 0.58 0.74 1.64 - 2.74 19.2 14.4 4.77 4.69 - -- 3.96 19.6 - 1.53 2.81 1.88 9.87 -- 9.14 Dry (Verification) NTU 08/25/17 - -- - 0.80 - -- - -- -- 34.8 - -- - - - - - 2.01 - -- - -- NTU 11/01/17 - -- - -- - -- - -- -- -- - -- - - - - - -- - -- 8.89 -- NTU 02/20/18 - 1.50 1.22 1.72 - 0.57 2.06 2.81 3.48 Dry - -- 0.56 27.6 - 0.63 8.01 5.75 14.8 -- 2.51 Dry NTU 08/08/18 - 1.53 1.61 7.64 - 1.31 9.67 20.2 7.67 2.04 - -- 1.65 9.66 - 0.89 6.70 3.59 120 -- 6.20 Dry NTU 01/15/19 - 0.41 1.42 9.99 2.01 5.68 9.59 7.64 8.83 - -- 1.65 9.92 - 1.27 1.66 2.78 117 -- 3.69 Dry NTU 08/13/19 - 1.33 0.71 1.79 - 0.87 8.95 0.88 5.76 9.54 - -- 5.37 13.3 - 4.37 1.04 3.71 25.0 -- 1.94 6.01 NTU 01/13/20 - 0.75 0.48 4.24 - 1.52 19.3 0.63 9.52 6.80 - -- 1.50 15.9 - 2.61 1.26 3.88 170 -- 7.19 Dry NTU 08/10/20 - 4.74 5.54 5.34 - 3.83 30.1 1.26 9.18 5.44 - -- 6.29 17.3 - 1.21 4.49 9.06 18.6 -- 1.88 0.68 NTU 01/26/21 - 2.17 1.67 2.23 - 2.89 8.21 0.83 8.73 3.83 - -- 2.20 42.8 - 4.39 1.59 7.80 20.1 -- 4.97 21.2 NTU 08/24/21 - 1.55 3.02 1.35 - 0.71 5.79 3.78 9.35 1.05 - -- 1.55 -- - 2.91 1.13 8.80 67.8 -- 2.08 375 (Verification) NTU 10/08/21 - -- - -- - -- - -- - -- - -- - -- - -- - - - -- - 2.24 NTU 02/09/22 - 0.32 0.02 2.10 - 7.55 8.15 0.35 7.75 3.50 - -- 0.40 -- - 2.34 1.60 5.18 194 -- 0.63 1.22 (Verification) NTU 04/14/22 - -- - - - 11.7 - -- - -- - -- - -- - -- - - - -- - -- NTU O8115122 0.77 0.37 7.08 2.82 7.31 4.66 9.37 20.1 3.57 0.87 2.73 4.28 136 1.42 17.2 \\1�D GOLDER Page 2 W 3 November 2022 Project No. GL21456818 Table 5 Summary of Groundwater Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Detected Monitoring Units Sample Date SWS Reporting Upgradient MSW Wells Sidegradlerd and Downgradlerd MSW Wells French Drain Constituents/Analytes Limit MW-9 MW-16 MW-1 MW-6 MW-7 MW-11 MW-12 MW-13 MW-20 MW-21 MW-22 MW-23 MW-23A MW-24 MW-24R MW-25 MW-26 MW-27 MW-28 MW-28R Oxygen Reduction Potential mV 9/26106 - 202 180 219 136 202 139 19 200 218 176 198 225 129 174 -- - -- - -- - -- (field) mV 1/31107 - 242 259 263 215 235 248 271 259 - 226 243 193 225 241 -- - -- - -- - -- mV 01/31/11 - 212.9 200.4 272.8 258.5 245.4 259.9 269.5 261.7 292.1 263.4 239.8 200.7 158.9 Dry -- - -- - -- - -- mV 07/18/11 - 144.6 140.5 110 84.5 153.8 157.8 143.4 146.7 79.8 88.3 101.9 139.2 35.0 - 143.5 - -- - -- - 140.0 mV 01/24/12 - -68.0 -86.9 -78.7 -127.3 -76.1 -187.2 -179.9 -138.8 -65.3 -69.2 -63.0 -102.6 -133.3 - -180.4 - - - -- - -69.4 mV 07/17/12 - ".0 29.7 73.5 30.4 110.8 53.3 50.7 50.3 91.6 -9.1 168.5 35.8 -12.3 - 56.6 - - - -- - 71.1 mV 01/22/13 - -- -15.6 - - 188.6 -24.2 -34.3 -32.1 Dry 101.7 109.1 -30.2 -39.7 - 198.7 119.1 139.8 186.7 174.4 - - mV 07/15/13 - 216.8 138.3 277A - 178.0 197.3 166.2 172.5 -- - -- 205.5 138.8 - 183.7 173.4 232.6 153.4 241.8 - - mV 01/27/14 - 179.4 173.7 185.3 - 194.9 217.2 220.4 230.2 Dry - -- 193.2 136.7 - 193.2 199.3 287.0 202.0 352.1 - 117.9 mV 07/15/14 - 251.0 165.6 115.1 - 261.2 270.5 262.6 293.6 330.3 - -- 253.3 159.7 - 210.9 190.3 295.6 250.1 441.8 - 190.8 mV 01/20/15 - 218.8 207.2 273.4 - 256.3 290.6 259.5 282.3 327.2 - -- 255.7 161.3 - 303.1 - - - -- - - (Verificat-) mV 032015 - - - - - -- - -- - 200.2 - -- - -- - -- - _ _ -- _ _ mV 07/23/15 - 232.9 245.4 -- - 290.0 289.8 235.9 271.5 Dry - -- 281.7 160.2 - 263.1 221.7 324.0 286.5 445.4 - 223.1 mV 01/12/16 - 336A 327.3 264.6 - 394.5 374.5 358.4 388.4 -- - -- 383.2 343.3 - 372.1 329.4 389.7 392.1 438.1 - 96.1 mV 08/01/16 - 242.9 256.6 -- 173.6 281.0 253.8 286.2 296.4 -- - -- 562.3 268.9 - 267.4 150.2 278.6 439.4 - -- mV 01/17/17 - 279.1 280.2 -- - 314.6 333.7 316.8 240.8 -- - -- 254.3 215.0 - 266.0 227.3 292.5 332.7 435.4 - Dry mV 07/24/17 - 245.9 220.0 126.2 - 179.0 178.0 208.4 192.9 -- - -- 272.1 196.0 - 191.7 213.0 289.4 240.1 -- 236.9 Dry (VerMomion) mV 08/25/17 - -- - 113.7 - -- -- -- -- -- - -- - -- - -- - 305.4 - -- - -- mV 11/01/17 _ -- _ -- _ -- -- -- -- -- _ -- _ -- _ -- _ -- _ __ 317.3 -- mV 02/20/18 - 194.5 196.5 258.3 - 425.5 445.9 450.9 457.5 Dry - -- 289.3 407.4 - 448.9 201.5 231.5 214.4 -- 466.8 Dry mV 08/08/18 - 186.8 192.6 181.9 - 232.7 242.7 246.0 287.0 -- - -- 220.9 197.3 - 237.8 226.2 258.2 249.4 -- 261.7 Dry mV 01/15/19 - 255.0 141.9 208.0 - 124.3 137.6 305.5 220.3 334.8 - -- 247.7 194.2 - 265.1 278.8 264.3 90.2 -- 312.5 Dry mV 08/13/19 - 358.3 287.5 368.7 - 260.4 299.1 286.3 373.0 326.5 - -- 214.9 390.4 - 271.4 215.2 294.3 386.9 -- 335.7 267.7 mV 01/13/20 - 282.1 246.0 260.1 - 189.3 354.4 357.2 358.5 346.8 - -- 310.2 184.7 - 297.4 191.3 291.1 321.3 -- 335.2 Dry mV 08/10/20 - 156.7 187.9 192 - 202.4 91.7 50.4 -29.3 304.1 - -- 509.4 190.1 - 82.6 151.7 280.9 50.9 -- 81.3 -- mV 01/26/21 - 99.7 89.8 117 - 118.7 230.1 242.3 288.3 193.3 - -- 204.8 208.2 - 200.8 95.5 162.9 109.9 -- 270.9 -- mV 08/24/21 - 177.9 137.2 269.9 - 221.0 225.3 252.3 247.2 350.1 - -- 408.3 -- - 220.2 199.3 273.7 141.1 -- 330.4 (Verification) mV 10/08/21 - -- - - - mV 02/09/22 - 169.7 150.2 200.0 - 177.7 193.5 186.3 186.5 -- - -- 20&0 -- - 182.9 145.1 186.6 166.6 -- 248.2 134.0 (Verification) mV 04/14/22 - -- - - - 166.0 -- - -- -- - mV 08/15/22 187.4 -32.2 223.7 239.9 264.9 264.5 247.7 370.1 278.1 199.1 269.1 226.7 300.7 176.3 Dissolved Oxygen (field) mg/L 01/31/11 - 6.21 8.43 1.05 8.71 7.30 7.26 3.46 6.19 878 8.84 860 6.46 318 Dry -- - -- - -- - -- mg/L 07/18/11 - 3.42 4.14 0.71 3.62 8.43 4.54 1.77 3.78 8.68 9.40 8.95 6.76 0.94 - 3.84 - -- - -- - 4.90 mg/L 01/24/12 - 8.05 9.18 2.14 8.32 9.02 3.55 2.84 7.09 12.93 10.65 9.66 8.19 2.81 - 6.81 - -- - -- - 12.23 mg/L 07/17/12 - 6.59 6.77 2.03 8.19 7.86 9.37 8.36 8.78 7.90 7.86 8.43 7.65 5.21 - 7.27 - -- - -- - 9.36 mg/L 01/22/13 - -- 6.35 -- - 6.92 6.25 2.42 5.76 Dry 8.48 7.52 6.36 3.95 - 6.65 7.51 8.68 7.05 7.85 - -- mg/L 07/15/13 - 5.39 6.54 2.99 - 6.99 7.56 5.87 6.67 -- - -- 6.92 4.92 - 6.42 7.97 8.39 6.11 7.29 - -- mg/L 01/27/14 - 4.79 5.59 2.11 - 6.77 5.70 2.08 5.03 Dry - -- 5.48 3.91 - 6.03 7.15 8.24 6.43 6.90 - 7.37 mg/L 07/15/14 - 5.24 5.14 0.30 - 6.87 6.78 3.09 4.07 5.48 - -- 3.89 3.89 - 5.35 7.38 8.08 6.04 7.60 - 6.59 mg/L 01/20/15 - 5.68 5.69 1.91 - 6.29 6.09 2.91 4.47 6.08 - -- 2.90 5.36 - 6.37 - -- - -- - - (VerHlcation) mg/L 03/20/15 - -- - -- - -- - -- -- 6.92 - -- - -- - - - -- - -- - -- mg/L 07/23/15 - 4.17 5.49 -- - 6.10 6.10 4.10 4.24 Dry - -- 0.62 4.31 - 5.76 7.05 7.25 4.92 6.42 - 7.23 mg/L 01/12/16 - 5.09 7.01 1.27 - 6.55 5.01 2.05 4.94 -- - -- 1.66 6.00 - 7.04 7.47 8.24 5.33 7.15 - 2.52 mg/L 01/15/16 - 4.60 8.01 0.57 - 7.43 7.39 1.98 5.61 7.02 - -- 0.68 6.50 - 8.50 7.67 8.65 4.27 -- 7.17 Dry mg/L 08/01/16 - 3.88 5.71 -- 4.35 6.47 6.68 3.77 3.31 -- - -- 1.35 4.78 - 5.39 7.26 7.18 4.39 6.61 - -- mg/L 01/17/17 - 4.54 6.29 -- - 5.05 5.99 2.22 4.21 -- - -- 0.73 4.34 - 5.70 7.20 6.13 4.03 5.51 - Dry mg/L 07/24/17 - 2.11 6.95 0.43 - 5.94 5.90 2.66 5.43 -- - -- 1.44 6.45 - 5.43 8.86 9.33 2.39 -- 5.70 Dry (Verifioation) mg/L 08/24/17 - - - 0.67 - -- mg/L 11/01/17 _ _ _ -- _ -- _ -- -- -- _ _ _ -- _ -- _ -- _ __ 6.01 -- mg/L 02/20/18 - 5.02 7.39 2.50 - 5.39 5.77 2.95 4.76 Dry - - 0.70 4.72 - 6.21 6.46 8.10 4.63 -- 5.66 Dry mg/L 08/08/18 - 3.88 5.92 1.20 - 6.29 6.00 2.06 3.85 -- - - 1.70 5.85 - 6.54 7.04 7.50 2.39 -- 6.36 Dry mg/L 08/13/19 - 1.65 6.34 0.28 - 6.05 6.97 2.27 4.42 5.86 - - 2.55 4.96 - 6.54 7.17 7.12 1.93 -- 5.58 4.66 mg/L 01/13/20 - 2.21 6.61 1.19 - 6.38 7.55 3.13 6.52 3.11 - - 1.27 6.28 - 7.48 6.72 6.92 4.20 -- 8.74 Dry mg/L 08/10/20 - 0.65 5.60 0.36 - 6.62 5.91 3.86 3.11 5.74 - - 2.80 5.65 - 6.45 7.31 7.41 3.00 -- 5.85 - mg/L 01/26/21 - 0.60 5.99 0.31 - 5.63 7.01 3.31 4.04 5.64 - - 2.76 6.97 - 8.29 6.24 6.30 2.73 -- 7.63 - mg/L 08/24/21 - 1.10 5.67 1.84 - 6.08 6.60 4.09 4.96 5.39 - -- 1.16 -- - 7.50 6.50 7.90 2.69 -- 6.37 - (VerHlcation) mg/L 10/08/21 - -- - -- - -- - mg/L 02/09/22 - 1.28 5.90 3.04 - 4.72 5.59 4.97 5.73 -- - -- 0.47 -- - 7.08 5.12 6.02 1.36 -- 6.85 7.02 (Verification) mg/L 04/14/22 _ -- _ -- _ 5.63 _ -- -- -- _ -- _ -- _ -- _ -- _ -- _ _ (Verification) mg/L 04/14/22 7.19 5.07 1.15 5.12 6.02 4.52 4.21 1.30 9.10 5.16 7.12 6.86 6.34 2.62 Notes: mg/L = milligrams per liter -= no data available S.U. = Standard Units NTU = Nephelometric Turbidity Units NO = Not detected at the stated reporting limit uS/cm= microsiemens per centimeter MW-23 water levels only per \\1�D GOLDER Page 3 of 3 November 2022 Table 6 Project No. GL21456818 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SWai SW-5 Antimony ug 5 -- --30 ND ND ND No SW Standard ug/L 09/26/06 -- -- 30 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 6 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 6 1.29 J 1.24 J Dry Dry Dry ND ND ug/L 01/17/08 -- -- 6 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 6 2.31 J 1.75 J Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 6 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 6 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 6 ND ND 0.129 J ND -- ND ND ug/L 07/20/10 -- -- 6 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 6 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 6 0.228 J 0.222 J Dry ND Dry ND ND ug/L 01/24/12 -- -- 6 ND ND ND ND Dry ND 0.259 J ug/L 07/17/12 -- -- 6 0.231 J ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 6 ND ND ND ND Dry ND 0.35 J ug/L 07/15/13 -- -- 6 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 6 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 6 ND ND Dry ND -- ND ND ug/L 01/20/15 0.220 -- 6 ND ND ND ND -- ND ND ug/L 07/23/15 0.220 -- 6 0.481 J 0.304 J Dry Dry -- Dry ND ug/L 01/12/16 0.220 -- 6 ND ND 0.253 B ND -- ND 0.577 J ug/L 08/01/16 0.220 -- 6 0.372 J ND ND ND -- Dry ND ug/L 01/18/17 0.370 -- 6 ND ND ND 0.444 J -- Dry ND ug/L 07/24/17 0.370 -- 6 ND ND ND Dry -- Dry ND ug/L 02/20/18 0.370 -- 6 ND ND ND ND -- ND ND ug/L 08/08/18 1.85 5.00 -- ND ND ND ND -- ND ND ug/L 01/15/19 1.85 5.00 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.740 2.00 -- ND ND Dry ND ND ND ND ug/L 01/13/20 0.740 2.00 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.740 2.00 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.740 2.00 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.740 2.00 -- ND ND Dry ND -- ND ND ug/L O2/09/22 0.740 2.00 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.740 2.00 ND ND ND ND ND ND Arsenic ug/L 12/30/05 -- -- 10 ND ND -- -- -- -- ND Human Health SW Standar= 10 ug/L ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 10 ND 6.9 B ND ND Dry ND 3 J ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 10 2.5 J ND 3.4 J 3.9 J Dry ND ND ug/L 07/30/08 -- -- 10 3.5 J ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 10 ND ND Dry ND Dry Dry 3.84 J ug/L 01/07/10 -- -- 10 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 3.55 B 3.18 B ND ND Dry ND 4.78 J ug/L 07/18/11 -- -- 10 ND ND Dry ND Dry 3.15 J ND ug/L 01/24/12 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 10 4.8 J ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 ND 3.48 J 4.12 J ND Dry ND ND ug/L 07/15/13 -- -- 10 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 5.40 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 6.80 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 6.80 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 6.80 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 6.80 -- 10 ND ND ND ND -- Dry ND ug/L 07/24/17 6.80 -- 10 ND ND ND Dry -- Dry ND ug/L O2/20/18 6.80 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 7.60 10.0 -- ND ND Dry ND ND ND ND ug/L 01/13/20 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 7.60 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 7.60 10.0 -- ND ND Dry ND -- ND ND ug/L O2/09/22 7.60 10.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 7.60 10.0 ND ND ND ND ND ND Barium ug/L 12/30/05 -- -- 500 ND ND -- -- -- -- ND Human Health SW Standard = 1000 ug/L ug/L 09/26/06 -- -- 500 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 100 43.5 79.8 99.5 80.1 Dry 61.8 0.04 J ug/L 07/12/07 -- -- 100 44.1 J 43.1 J Dry Dry Dry 69.1 J ND ug/L 01/17/08 -- -- 100 37.3 J 37.8 J 109 114 Dry 100 ND ug/L 07/30/08 -- -- 100 58.7 J 85.7 J Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 100 50.6 J 49.9 J 103 60.5 J Dry 73.8 J ND ug/L 07/14/09 -- -- 100 144 96.3 J Dry 144 Dry Dry ND ug/L 01/07/10 -- -- 100 49.6 J 50.2 J 116 66.4 J -- 88.4 J 0.481 J ug/L 07/20/10 -- -- 100 59.5 J 62.7 J Dry 71.9 J Dry Dry ND ug/L 01/31/11 -- -- 100 46.7 J 35.4 J 94.9 J 64.6 J Dry 104 ND ug/L 07/18/11 -- -- 100 53.9 J 60.4 J Dry 52.4 J Dry 75.5 J ND ug/L 01/24/12 -- -- 100 45.4 J 43.4 J 72.5 J 70.2 J Dry 82.4 J ND ug/L 07/17/12 -- -- 100 40.8 J 40.4 J Dry Dry Dry Dry 1.32 J ug/L 01/22/13 -- -- 100 83.8 J 64 J 96.4 J 71.9 J Dry 82.9 J 1.24 J ug/L 07/15/13 -- -- 100 56 J 62.3 J 73.2 J 69.2 J -- 89.8 J 1.75 J ug/L 01/27/14 -- -- 100 54.2 J 50.7 J 112 66.7 J -- 92.4 J 1.18 J ug/L 07/15/14 -- -- 100 39.7 J 39.2 J Dry 59.7 J -- 58.9 J ND ug/L 01/20/15 1.0 -- 100 44 J 59.8 J 46.8 J 77 J -- 74.4 J 1.01 J ug/L 07/23/15 1.0 -- 100 39.1 J 55.5 J Dry Dry -- Dry ND ug/L 01/12/16 1.0 -- 100 47.5 J 53.8 J 52.4 J 68 J -- 83.7 J 1.94 J ug/L 08/01/16 1.0 -- 100 41.7 J 42.9 J 27 J 61.4 J -- Dry ND ug/L 01/18/17 1.0 -- 100 43.8 J 46.6 J 86.9 J 76.9 J -- Dry ND ug/L 07/24/17 1.0 -- 100 120 48.6 J 56.0 J Dry -- Dry 2.03 J ug/L 02/20/18 1.0 -- 100 53.3 J 52.2 J 120 64.9 J -- 87.1 J ND ug/L 08/08/18 1.10 10.0 -- 109 88.2 174 51.9 -- 83.3 3.31 J ug/L 01/15/19 1.10 10.0 -- 58.4 56.7 92.8 74.7 -- 86.2 ND ug/L 08/14/19 1.10 10.0 -- 115 109 Dry 78.9 -- 79.5 2.69 J ug/L 01/13/20 1.10 10.0 -- 56.4 123 116 67.0 -- 82.5 1.11 J ug/L 08/11/20 1.10 10.0 -- 63.5 61.6 Dry 75.7 -- Dry ND ug/L 01/26/21 1.10 10.0 -- 49.8 53.2 204 97.0 -- 93.4 ND ug/L 08/25/21 1.10 10.0 -- 43.1 46.5 Dry 64.8 -- 124 ND ug/L 02/09/22 1.10 10.0 -- 50.5 49.3 164 102 -- 86.8 ND ug/L 08/15/22 1.10 10.0 48.4 85.1 79.0 57.8 69.1 ND %%%I) GOLDER Page 1 of 8 November 2022 Table 6 Project No. GL21456818 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 Beryllium ug 5 -- -- 2 ND ND -- -- -- -- ND Chronic SW Standard = 6.5 ug/L ug/L 09/26/06 -- -- 2 ND ND Dry ND Dry Dry ND Acute SW Standard = 65 ug/L ug/L O1/31/07 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 1 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 1 0.608 J 0.316 J Dry ND Dry Dry ND ug/L 01/07/10 -- -- 1 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 1 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 1 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 1 ND ND 0.108 J ND Dry ND ND ug/L 07/15/13 -- -- 1 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 1 ND ND Dry ND -- ND ND ug/L 01/20/15 0.1 -- 1 ND ND ND ND -- ND ND ug/L 07/23/15 0.1 -- 1 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.1 -- 1 ND ND ND ND -- ND ND ug/L 08/01/16 0.1 -- 1 ND ND ND ND -- Dry ND ug/L 01/18/17 0.1 -- 1 ND ND ND ND -- Dry ND ug/L 07/24/17 0.1 -- 1 ND ND ND Dry -- Dry ND ug/L 02/20/18 0.1 -- 1 ND ND ND ND -- ND ND ug/L 08/08/18 0.160 1.00 -- 0.680 J 0.445 J ND ND -- ND ND ug/L 01/15/19 0.160 1.00 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.160 1.00 -- 0.296 J ND Dry ND -- ND ND ug/L 01/13/20 0.160 1.00 -- ND 0.242 J ND ND -- ND ND ug/L 08/11/20 0.160 1.00 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.160 1.00 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.160 1.00 -- ND ND Dry ND -- ND ND ug/L O2/09/22 0.160 1.00 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.160 1.00 ND ND ND ND ND ND Cadmium ug/L 12/30/05 -- -- 1 ND ND -- -- -- -- ND SW Standards (ug/L) = Hardness Based ug/L 09/26/06 -- -- 1 ND ND Dry ND Dry Dry ND SW-1: Chronic =0.32 Acute =2.01 ug/L 01/31/07 -- -- 1 ND ND ND ND Dry ND ND SW-2: Chronic = 0.26 Acute = 1.58 ug/L 07/12/07 -- -- 1 ND ND Dry Dry Dry ND ND SW-3: Chronic =0.49 Acute =3.21 ug/L 01/17/08 -- -- 1 ND ND ND ND Dry ND ND SW-4: Chronic = 0.18 Acute = 1.01 ug/L 07/30/08 -- -- 1 ND ND Dry Dry Dry Dry 0.7 J SW-5: Chronic = 0.20 Acute = 1.12 ug/L 01/21/09 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 1 0.184 J ND Dry 0.192 J Dry Dry ND ug/L 01/07/10 -- -- 1 0.25 J 0.16 J ND 0.232 J -- 0.151 J ND ug/L 07/20/10 -- -- 1 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 1 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 1 ND ND ND ND -- 0.385 J ND ug/L 01/27/14 -- -- 1 ND ND 1.92 ND -- ND ND ug/L 07/15/14 -- -- 1 ND ND Dry ND -- ND ND ug/L 01/20/15 0.360 -- 1 ND ND ND ND -- ND ND ug/L 07/23/15 0.360 -- 1 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.360 -- 1 ND ND ND ND -- ND ND ug/L 08/01/16 0.360 -- 1 ND ND ND ND -- Dry ND ug/L 01/18/17 0.360 -- 1 ND ND ND ND -- Dry ND ug/L 07/24/17 0.360 -- 1 ND ND ND Dry -- Dry ND ug/L O2/20/18 0.360 -- 1 ND ND ND ND -- ND 0.383 J ug/L 08/08/18 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 01/15/19 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.360 1.00 -- ND ND Dry ND -- ND ND ug/L 01/13/20 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.360 1.00 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.360 1.00 -- ND ND Dry ND -- ND ND ug/L O2/09/22 0.360 1.00 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.360 1.00 ND ND ND ND ND ND Chromium ug/L 12/30/05 -- -- 10 ND ND -- -- -- -- ND SW Standards (ug/L)= Hardness Based ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND SW-1: Chronic = 55.34 Acute =425.43 ug/L 01/31/07 -- -- 10 ND ND ND ND Dry ND ND SW-2: Chronic = 44.06 Acute = 338.75 ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry 17 ND SW-3: Chronic = 86.05 Acute =661.52 ug/L 01/17/08 -- -- 10 ND ND 3.9 J 4.1 J Dry ND ND SW-4: Chronic = 29.15 Acute = 224.08 ug/L 07/30/08 -- -- 10 ND ND Dry Dry Dry Dry 14.5 SW-5: Chronic = 32.10 Acute =246.78 ug/L 01/21/09 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 10 17.4 7.68 J Dry ND Dry Dry ND ug/L 01/07/10 -- -- 10 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 10 3.19 J 3.14 J Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 ND ND 3.67 J ND Dry ND ND ug/L 07/18/11 -- -- 10 ND ND Dry 2.16 J Dry ND ND ug/L 01/24/12 -- -- 10 1.28 J ND 2.56 J ND Dry 1.16 J ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 3.61 B 1.04 B 7.08 B ND Dry ND 1.5 J ug/L 07/15/13 -- -- 10 ND ND 1.64 J ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND 4.06 J ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 1.40 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 1.40 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.40 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 1.40 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 1.40 -- 10 ND 4.24 J ND ND -- Dry ND ug/L 07/24/17 1.40 -- 10 9.46 J ND ND Dry -- Dry ND ug/L 02/20/18 1.40 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 1.40 10.0 -- 8.14 J 11.0 ND ND -- ND 1.66 J ug/L 01/15/19 1.40 10.0 -- 2.51 J 1.52 J 3.52 J ND -- ND ND ug/L 08/14/19 1.40 10.0 -- ND 2.58 J Dry ND -- ND ND ug/L 01/13/20 1.40 10.0 -- ND ND 2.18 J 1.86 J -- 1.51 J ND ug/L 08/11/20 1.40 10.0 -- 1.74 J ND Dry ND -- Dry ND ug/L 01/26/21 1.40 10.0 -- 1.47 J ND 4.65 J ND -- ND ND ug/L 08/25/21 1.40 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 1.40 10.0 -- ND ND 2.46 J ND -- ND ND ug/L 08/15/22 1.40 10.0 ND 1.66 J ND ND ND ND %%%I) GOLDER Page 2 of 8 November 2022 Table 6 Project No. GL21456818 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 Cobalt ug 5 -- -- 10 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 10 ND ND 6.4 J 2 J Dry ND ND ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 10 ND ND 4.7 J 2.2 J Dry 4.5 J ND ug/L 07/30/08 -- -- 10 ND 2.1 J Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 10 1.4 J ND 8.3 J 1.6 J Dry 1.1 J ND ug/L 07/14/09 -- -- 10 9.14 J 2.6 J Dry 12.6 Dry Dry ND ug/L 01/07/10 -- -- 10 1.14 J 0.818 J 13.9 2.02 J -- 2.48 J ND ug/L 07/20/10 -- -- 10 2.17 J 2.5 J Dry 1.71 J Dry Dry ND ug/L 01/31/11 - -- 10 1.15 J ND 3.42 J ND Dry 2.63 J ND ug/L 07/18/11 -- -- 10 ND 1.19 J Dry ND Dry 1.24 J ND ug/L 01/24/12 -- -- 10 ND ND 2.62 J ND Dry 1.47 J ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 - -- 10 2.63 J ND 3.4 J 1.22 J Dry ND ND ug/L 07/15/13 -- -- 10 ND ND 1.98 J ND -- 1.47 J ND ug/L 01/27/14 -- -- 10 1.37 J 1.29 J 8.09 J 1.75 J -- 1.75 J ND ug/L 07/15/14 -- -- 10 ND ND Dry 1.31 J -- ND ND ug/L 01/20/15 1.10 -- 10 1.16 J 2.43 J 1.92 J ND -- 1.83 J ND ug/L 07/23/15 1.10 -- 10 1.51 J 1.64 J Dry Dry -- Dry ND ug/L 01/12/16 1.10 -- 10 ND ND 1.74 J ND -- ND ND ug/L 08/01/16 1.10 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 1.10 -- 10 ND ND 2.68 J ND -- Dry ND ug/L 07/24/17 1.10 -- 10 6.41 J ND 1.14 J Dry -- Dry ND ug/L 02/20/18 1.10 -- 10 1.23 B 1.45 B ND 1.82 B -- 2.17 B 1.22 J ug/L 08/08/18 1.40 10.0 -- 5.27 J 3.36 J 12.1 1.45 J -- 2.57 J ND ug/L 01/15/19 1.40 10.0 -- ND ND 4.65 J ND -- 1.84 J ND ug/L 08/14/19 1.40 10.0 -- 4.45 J 4.60 J Dry ND -- 4.21 J ND ug/L 01/13/20 1.40 10.0 -- ND 8.47 J 2.82 J ND -- 1.86 J ND ug/L 08/11/20 1.40 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 1.40 10.0 -- ND ND 5.93 J ND -- 9.27 J ND ug/L 08/25/21 1.40 10.0 -- ND ND Dry ND -- 17.8 ND ug/L 02/09/22 1.40 10.0 -- 1.54 J ND 3.02 J ND -- 4.69 J ND ug/L 08/15/22 1.40 10.0 ND 4.62 J ND ND 5.70 J ND Copper ug/L 12/30/05 -- -- 200 ND ND -- -- -- -- ND SW Standards (ug/L)= ug/L 09/26/06 -- -- 200 ND ND Dry ND Dry Dry ND (Acute = Hardness based) ug/L 01/31/07 -- -- 10 ND ND ND ND Dry ND ND SW-1: Chronic = 2.7 Acute = 9.60 ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND SW-2: Chronic = 2.7 Acute = 7.39 ug/L 01/17/08 -- -- 10 1 J 1.2 J 3.3 J 9.4 J Dry 0.8 J ND SW-3: Chronic = 2.7 Acute = 15.96 ug/L 07/30/08 -- -- 10 2.8 J 3.8 J Dry Dry Dry Dry ND SW-4: Chronic =2.7 Acute =4.59 ug/L 01/21/09 -- -- 10 ND ND ND ND Dry ND ND SW-5: Chronic = 2.7 Acute = 5.13 ug/L 07/14/09 -- -- 10 17.6 8.32 J Dry 0.81 B Dry Dry 1.04 J ug/L 01/07/10 -- -- 10 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 10 7.17 J 7.51 J Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 ND ND 3.54 J ND Dry ND ND ug/L 07/18/11 -- -- 10 ND 2.33 J Dry ND Dry ND ND ug/L 01/24/12 -- -- 10 3.71 B 3.17 B 5.04 B 2.52 B Dry 2.66 B 2.78 J ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 4.03 J ND 7.1 J ND Dry ND ND ug/L 07/15/13 -- -- 10 1.91 J 2.5 J 2.36 J ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND 3.61 J ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 1.60 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 1.60 -- 10 1.83 B ND Dry Dry -- Dry 1.9 J ug/L 01/12/16 1.60 -- 10 ND ND 2.04 B ND -- ND 3.52 J ug/L 08/01/16 1.60 -- 10 ND ND 2.11 J ND -- Dry ND ug/L 01/18/17 1.60 -- 10 3.86 B 4.56 B 3.62 B 2.2 B -- Dry 4.8 J ug/L 07/24/17 1.60 -- 10 15.4 B 3.49 B 2.04 B Dry -- Dry 4.18 J ug/L 02/20/18 1.60 -- 10 ND ND 2.88 J ND -- ND ND ug/L 08/08/18 1.60 10.0 -- 6.99 J 4.73 J ND ND -- ND ND ug/L 01/15/19 1.60 10.0 -- 2.49 J 1.74 J 6.58 J ND -- ND ND ug/L 08/14/19 1.60 10.0 -- 22.9 17.4 Dry ND -- ND 2.38 J ug/L 01/13/20 1.60 10.0 -- 2.78 J 9.52 J 5.02 J 9.34 J -- 4.24 J ND ug/L 08/11/20 1.60 10.0 -- 5.39 J 5.21 J Dry ND -- Dry 1.95 J ug/L 01/26/21 1.60 10.0 -- 2.20 J 2.36 J 2.68 J 3.19 J -- ND ND ug/L 08/25/21 1.60 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 1.60 10.0 -- ND ND 4.96 J 1.87 J -- ND ND ug/L 08/15/22 1.60 10.0 ND 3.25 J 3.71 J ND ND ND Lead ug/L 12/30/05 -- -- 10 ND ND -- -- -- -- ND SW Standards (ug/L)= Hardness Based ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND SW-1: Chronic =1.70 Acute =43.71 ug/L 01/31/07 -- -- 10 ND ND ND ND Dry ND ND SW-2: Chronic = 1.25 Acute = 32.15 ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry -- ND SW-3: Chronic = 3.07 Acute = 78.72 ug/L 01/17/08 -- -- 10 ND ND ND 5.3 J Dry ND ND SW-4: Chronic = 0.71 Acute = 18.32 ug/L 07/30/08 -- -- 10 ND 2.4 J Dry Dry Dry Dry ND SW-5: Chronic =0.81 Acute =20.90 ug/L 01/21/09 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 10 10.3 B 7.03 B Dry ND Dry Dry 3.4 J ug/L 01/07/10 -- -- 10 ND 1.21 B ND 1.46 B -- 2.01 B 1.47 J ug/L 07/20/10 -- -- 10 ND 2.92 J Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 ND ND 3.22 J ND Dry ND ND ug/L 07/18/11 -- -- 10 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 10 ND ND 3.69 J ND Dry ND ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 2.24 B ND 6.92 B 2.5 B Dry ND 1.97 J ug/L 07/15/13 -- -- 10 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND 4.1 J ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 2.10 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 3.10 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 3.10 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 3.10 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 3.10 -- 10 ND ND ND ND -- Dry ND ug/L 07/24/17 3.10 -- 10 5.21 J ND ND Dry -- Dry ND ug/L 02/20/18 3.10 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 3.10 10.0 -- 5.94 J ND ND ND -- ND ND ug/L 01/15/19 3.10 10.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 3.10 10.0 -- 7.77 J 5.46 J Dry ND -- ND ND ug/L 01/13/20 3.10 10.0 -- ND 6.70 J ND 3.60 J -- ND ND ug/L 08/11/20 3.10 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 3.10 10.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 3.10 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 3.10 10.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 3.10 10.0 ND 3.45 J ND ND ND ND %%%I) GOLDER Page 3 of 8 November 2022 Table 6 Project No. GL21456818 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SWfi SW-5 Nickel ug 5 -- -- 50 ND ND ND SW Standards (ug/L)= Hardness Based ug/L 09/26/06 -- -- 50 ND ND Dry ND Dry Dry ND SW-1: Chronic = 38.46 Acute =346.27 ug/L O1/31/07 -- -- 50 ND ND ND ND Dry ND ND SW-2: Chronic = 30.39 Acute = 273.65 ug/L 07/12J07 -- -- 50 ND ND Dry Dry Dry 10.3 J ND SW-3: Chronic = 60.68 Acute =546.33 ug/L O1/17/08 -- -- 50 ND ND 2.2 J 2.4 J Dry ND ND SW-4: Chronic = 19.83 Acute = 178.58 ug/L 07/30/08 -- -- 50 ND ND Dry Dry Dry Dry 12.4 J SW-5: Chronic = 21.91 Acute = 197.29 ug/L 01/21/09 -- -- 50 ND ND 2.3 J 2 J Dry 2.1 J ND ug/L 07/14/09 -- -- 50 7.02 J 3.67 B Dry 2.06 B Dry Dry 0.882 J ug/L 01/07/10 -- -- 50 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 50 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 50 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 50 ND ND 2.63 J ND Dry 1.85 J ND ug/L 07/17/12 -- -- 50 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 50 ND ND 2.5 J ND Dry ND ND ug/L 07/15/13 -- -- 50 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 50 ND ND 3.7 J ND -- ND ND ug/L 07/15/14 -- -- 50 ND ND Dry ND -- ND ND ug/L 01/20/15 1.80 -- 50 ND ND ND ND -- ND ND ug/L 07/23/15 1.80 -- 50 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.80 -- 50 ND ND ND ND -- ND ND ug/L 08/01/16 2.20 -- 50 ND ND ND ND -- Dry ND ug/L 01/18/17 2.20 -- 50 ND 2.77 J ND ND -- Dry ND ug/L 07/24/17 2.20 -- 50 5.42 J ND ND Dry -- Dry ND ug/L 02/20/18 2.20 -- 50 ND ND ND ND -- 4.20 J ND ug/L 08/08/18 2.20 10.0 -- 6.82 J 3.87 J 2.34 J ND -- 3.52 J ND ug/L 01/15/19 2.20 10.0 -- ND ND 3.39 J ND -- 8.18 J ND ug/L 08/14/19 2.20 10.0 -- ND 2.47 J Dry ND -- 8.37 J ND ug/L 01/13/20 2.20 10.0 -- ND ND 3.85 J 2.24 J -- ND ND ug/L 08/11/20 2.20 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 2.20 10.0 -- ND ND 6.01 J ND -- 6.27 J ND ug/L 08/25/21 2.20 10.0 -- ND ND Dry ND -- 9.29 J ND ug/L O2/09/22 2.20 10.0 -- ND ND 7.58 J ND -- ND ND ug/L 08/15/22 2.20 10.0 ND ND ND ND 2.55 J ND Selenium ug/L 12/30/05 -- -- 20 ND ND -- -- -- -- ND SW Standard = 5 ug/L ug/L 09/26/06 -- -- 20 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 10 3.2 B ND ND ND Dry ND 2 J ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 10 ND ND ND ND Dry 3.3 J ND ug/L 07/14/09 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 10 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 10 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 10 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 5 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 5 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 5 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 6.20 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 6.20 -- 10 ND ND ND ND -- Dry ND ug/L 07/24/17 6.20 -- 10 ND ND ND Dry -- Dry ND ug/L O2/20/18 6.20 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 6.20 10.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 6.20 10.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 6.20 10.0 -- ND ND Dry ND -- ND ND ug/L O2/09/22 6.20 10.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 6.20 10.0 ND ND ND ND ND ND Silver ug/L 12/01/05 -- -- 10 ND ND -- -- -- ND ND Chronic SW Standard = 0.06 ug/L ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND Acute SW Standard = Hardness Based ug/L O1/31/07 -- -- 10 ND ND ND ND Dry ND ND SW-1 = 1.74 ug/L 07/12/07 -- -- 10 ND ND Dry Dry Dry ND ND SW-2 = 1.08 ug/L 01/17/08 -- -- 10 ND ND ND ND Dry ND ND SW-3=4.40 ug/L 07/30/08 -- -- 10 ND ND Dry Dry Dry Dry ND SW-4 = 0.45 ug/L 01/21/09 -- -- 10 ND ND ND ND Dry ND ND SW-5 = 0.55 ug/L 07/14/09 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 10 ND ND 0.676 J ND -- ND ND ug/L 07/20/10 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 10 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 10 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 10 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 1.90 -- 10 2.23 B 2.31 B 2.45 B 2.63 B -- 2.71 B 3.39 J ug/L 07/23/15 1.90 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.90 -- 10 ND ND ND ND -- ND ND ug/L 08/01/16 1.90 -- 10 ND ND ND ND -- Dry ND ug/L 01/18/17 1.90 -- 10 ND ND ND ND -- Dry ND ug/L 07/24/17 1.90 -- 10 ND ND ND Dry -- Dry ND ug/L 02/20/18 1.90 -- 10 ND ND ND ND -- ND ND ug/L 08/08/18 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 1.90 10.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 1.90 10.0 -- ND ND Dry ND -- Dry 2.17 J ug/L 01/26/21 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 1.90 10.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 1.90 10.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 1.90 10.0 ND ND ND ND ND ND %%%I) GOLDER Page 4 of 8 November 2022 Table 6 Project No. GL21456818 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SWA SW-2 SW-3 SW-4 SW-6 SW-5 Thallium ug/L 12130/05 -- -- 10 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 10 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 5.5 ND ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 5.5 ND ND 0.052 J 0.071 J Dry 0.112 J ND ug/L 07/30/08 -- -- 5.5 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 5.5 0.086 J 0.077 J Dry 0.037 J Dry Dry ND ug/L 01/07/10 -- -- 5.5 ND ND ND ND -- ND ND ug/L 07/20/10 -- -- 5.5 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 5.5 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 5.5 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 5.5 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 5.5 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 5.5 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 5.5 ND ND Dry ND -- ND ND ug/L 01/20/15 0.110 -- 5.5 ND ND ND ND -- ND ND ug/L 07/23/15 0.110 -- 5.5 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.110 -- 5.5 ND ND ND ND -- ND ND ug/L 08/01/16 0.110 -- 5.5 ND ND ND ND -- Dry ND ug/L 01/18/17 0.110 -- 5.5 0.585 J ND 0.148 J ND -- Dry ND ug/L 07/24/17 0.110 -- 5.5 0.203 J 0.152 J 0.133 J Dry -- Dry ND ug/L 02/20/18 0.110 -- 5.5 ND ND ND ND -- ND ND ug/L 08/08/18 0.550 5.00 -- ND ND ND ND -- ND ND ug/L 01/15/19 0.550 5.00 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.220 2.00 -- ND ND Dry ND -- ND ND ug/L 01/13/20 0.220 2.00 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.220 2.00 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.220 2.00 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.220 2.00 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.0600 0.100 -- ND ND 0.0765 J ND -- ND ND ug/L 08/15/22 0.220 2.00 ND ND ND ND ND ND Vanadium ug/L 12/30/05 -- -- 40 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 40 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 25 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 25 3 J ND Dry Dry Dry ND ND ug/L 01/17/08 -- -- 25 1 J 1.2 J 11.6 J 14.2 J Dry 4.5 J ND ug/L 07/30/08 -- -- 25 2.1 J 8.4 J Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 25 1.4 J ND ND ND Dry ND ND ug/L 07/14/09 -- -- 25 50.2 28 Dry 1.94 J Dry Dry ND ug/L 01/07/10 -- -- 25 2.9 J 2.95 J 1.71 J ND -- 3.21 J ND ug/L 07/20/10 -- -- 25 22.9 J 23 J Dry ND Dry Dry ND ug/L 01/31/11 -- -- 25 1.55 J 1.81 J 12 J ND Dry 3.17 J ND ug/L 07/18/11 -- -- 25 4.19 J 5.6 J Dry 2.22 J Dry ND ND ug/L 01/24/12 -- -- 25 2.26 J 1.8 J 6.5 J ND Dry 1.84 J ND ug/L 07/17/12 -- -- 25 3.68 J 3.8 J Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 25 14 J 4.5 J 23.8 J ND Dry 2.78 J ND ug/L 07/15/13 -- -- 25 5.53 J 7.3 J 7.65 J 4.07 J -- 1.54 J ND ug/L 01/27/14 -- -- 25 4.1 J 4.09 J 13.1 J 2.3 J -- ND ND ug/L 07/15/14 -- -- 25 3.72 J 3.5 J Dry 1.93 J -- 2.4 J ND ug/L 01/20/15 1.40 -- 25 2.06 J 2.46 J 3.24 J 1.51 J -- 3.78 J ND ug/L 07/23/15 1.40 -- 25 4.23 J 3.4 J Dry Dry -- Dry ND ug/L 01/12/16 1.40 -- 25 2.52 J 2.49 J 1.64 J ND -- ND ND ug/L 08/01/16 1.40 -- 25 4.25 J 4.26 J 4.56 J 2.06 J -- Dry ND ug/L 01/18/17 1.40 -- 25 2.19 J 2.51 J 3.46 J ND -- Dry ND ug/L 07/24/17 1.40 -- 25 36.6 4.89 J 3.80 J Dry -- Dry ND ug/L 02/20/18 1.40 -- 25 4.74 J 5.34 J 4.32 J 2.48 J -- 3.67 J ND ug/L 08/08/18 1.40 10.0 -- 31.2 23.1 1.62 J 2.02 J -- 2.44 J ND ug/L 01/15/19 1.40 10.0 -- 6.68 J 6.19 J 10.3 ND -- ND ND ug/L 08/14/19 1.40 10.0 -- 18.3 24.4 Dry 1.81 J -- ND ND ug/L 01/13/20 1.40 10.0 -- 5.03 J 18.9 6.23 J 5.93 J -- 7.82 J ND ug/L 08/11/20 1.40 10.0 -- 9.15 J 7.21 J Dry 1.42 J -- Dry ND ug/L 01/26/21 1.40 10.0 -- 3.17 J 2.97 J 3.39 J ND -- ND ND ug/L 08/25/21 1.40 10.0 -- 3.33 J 3.51 J Dry 1.64 J -- ND ND ug/L 02/09/22 1.40 10.0 -- 2.57 J 1.68 J 4.43 J ND -- ND ND ug/L 08/15/22 1.40 10.0 5.40 J 12.2 6.86 J 2.29 J 1.78 J ND Zinc ug/L 12/30/05 -- -- 50 ND ND -- -- -- -- ND SW Standards (ug/L)= Hardness Based ug/L 09/26/06 -- -- 50 ND ND Dry ND Dry Dry ND SW-1: Chronic = 87.33 Acute = 86.62 ug/L 01/31/07 -- -- 10 ND ND ND 1.7 J Dry ND ND SW-2: Chronic = 68.99 Acute = 68.43 ug/L 07/12/07 -- -- 10 7.4 J ND Dry Dry Dry 7.8 J ND SW-3: Chronic = 137.87 Acute = 136.76 ug/L 01/17/08 -- -- 10 2.6 J 4.1 J 28 25.3 Dry 5.4 J ND SW-4: Chronic = 44.99 Acute = 44.62 ug/L 07/30/08 -- -- 10 5.8 J 22.3 Dry Dry Dry Dry ND SW-5: Chronic = 49.71 Acute =49.31 ug/L 01/21/09 -- -- 10 ND ND 40.5 5.7 J Dry ND ND ug/L 07/14/09 -- -- 10 37.5 24.6 Dry 12.1 Dry Dry ND ug/L 01/07/10 -- -- 10 2.81 J 2.74 J 32.7 2.82 J -- 5.91 J ND ug/L 07/20/10 -- -- 10 8.25 J 14.6 Dry 4.02 J Dry Dry ND ug/L 01/31/11 -- -- 10 ND 4.26 J 19 ND Dry 9.27 J ND ug/L 07/18/11 -- -- 10 ND 4.3 J Dry 8.28 J Dry ND ND ug/L 01/24/12 -- -- 10 ND ND 10.2 B ND Dry ND 9.27 J ug/L 07/17/12 -- -- 10 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 10 8.55 J ND 19.8 ND Dry ND ND ug/L 07/15/13 -- -- 10 ND ND ND ND -- 8.63 J ND ug/L 01/27/14 -- -- 10 4.41 J 4.86 J 24.9 4.9 J -- 33.5 ND ug/L 07/15/14 -- -- 10 ND ND Dry ND -- ND ND ug/L 01/20/15 3.80 -- 10 ND ND ND ND -- ND ND ug/L 07/23/15 3.80 -- 10 ND ND Dry Dry -- Dry ND ug/L 01/12/16 3.80 -- 10 ND 3.89 J 11.2 ND -- ND ND ug/L 08/01/16 4.40 -- 10 ND ND 4.65 J ND -- Dry ND ug/L 01/18/17 4.40 -- 10 ND ND 16.5 ND -- Dry ND ug/L 07/24/17 4.40 -- 10 63.1 ND ND Dry -- Dry ND ug/L 02/20/18 4.40 -- 10 ND ND 9.18 J ND -- ND ND ug/L 08/08/18 4.40 10.0 -- 21.8 14.6 5.41 J ND -- ND ND ug/L 01/15/19 4.40 10.0 -- ND ND 10.4 ND -- ND ND ug/L 08/14/19 4.40 10.0 -- 16.1 17.0 Dry 5.23 J -- 4.77 J ND ug/L 01/13/20 4.40 10.0 -- 4.75 J 19.3 10.0 18.3 -- 9.97 J ND ug/L 08/11/20 4.40 10.0 -- 4.77 J ND Dry ND -- Dry ND ug/L 01/26/21 4.40 10.0 -- ND ND 40.7 ND -- ND ND ug/L 08/25/21 4.40 10.0 -- 5.18 J ND Dry ND -- ND ND ug/L 02/09/22 4.40 10.0 -- 5.71 J 5.75 J 14.8 ND -- ND ND ug/L 08/15/22 4.40 10.0 6.82 J 18.9 25.7 ND ND ND %%%I) GOLDER Page 5 of 8 November 2022 Table 6 Project No. GL21456818 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SWai SW-5 Acetone ug 5 -- -- 20 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 100 ND ND 120 ND Dry ND ND (Verification)ug 7 -- -- 100 -- -- -- -- 25 J -- ND ug/L 07/12/07 -- -- 100 ND ND Dry Dry Dry ND 0.93 J ug/L 01/17/08 -- -- 100 ND ND ND 14 J Dry ND ND ug/L 07/30/08 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 100 4.3 J ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 100 ND ND 150 ND -- ND ND (Verification) ug/L 01/20/10 -- -- 100 -- -- 110 -- ND -- ND ug/L 07/20/10 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 100 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 100 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 100 ND ND 100 ND -- ND ND ug/L 07/15/14 -- -- 100 ND ND Dry ND -- ND ND ug/L 01/20/15 1.2 -- 100 ND ND ND ND -- ND ND ug/L 07/23/15 1.2 -- 100 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.2 -- 100 ND ND ND ND -- ND ND ug/L 08/01/16 10 -- 100 ND ND ND ND -- Dry ND ug/L 01/18/17 10 -- 100 ND ND ND ND -- Dry ND ug/L 07/24/17 10 -- 100 ND ND ND Dry -- Dry 17 J ug/L 02/20/18 10 -- 100 ND ND ND ND -- ND ND ug/L 08/08/18 10 20 -- ND ND ND ND -- ND ND ug/L 01/15/19 10 20 -- ND ND 53 ND -- ND ND (Verification) ug/L 02/21/19 10 20 -- -- -- 65 -- -- -- ND ug/L 08/14/19 10 20 -- ND ND Dry ND -- ND ND ug/L 01/13/20 10 20 -- ND ND 10 J ND -- ND ND ug/L 08/11/20 10 20 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 10 20 -- ND ND 66 ND -- ND ND ug/L 08/25/21 10 20 -- ND ND Dry ND -- ND 38 ug/L 02/09/22 10 20 -- ND ND ND ND -- ND ND ug/L 08/15/22 10 20 ND ND ND ND ND 20 2-Hexanone ug/L 09/26/06 -- -- 50 ND ND Dry ND Dry -- ND No SW Standard ug/L 01/31/07 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/12/07 -- -- 50 ND ND Dry Dry Dry Dry ND ug/L 01/17/08 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 50 ND ND -- -- -- -- ND ug/L 01/21/09 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 50 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 50 ND ND 3.2 J ND -- ND ND (Verification) ug/L 01/20/10 -- -- 50 -- -- 7.8 J -- ND -- ND ug/L 07/20/10 -- -- 50 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 50 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 50 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 50 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 50 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 50 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 50 ND ND Dry ND -- ND ND ug/L 01/20/15 0.88 -- 50 ND ND ND ND -- ND ND ug/L 07/23/15 0.88 -- 50 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.88 -- 50 ND ND ND ND -- ND ND ug/L 08/01/16 0.88 -- 50 ND ND ND ND -- Dry ND ug/L 01/18/17 0.88 -- 50 ND ND ND ND -- Dry ND ug/L 07/24/17 0.88 -- 50 ND ND ND Dry -- Dry ND ug/L 02/20/18 0.88 -- 50 ND ND ND ND -- ND ND ug/L 08/08/18 0.88 5.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 0.88 5.0 -- ND ND 6.3 ND -- ND ND ug/L 02/21/19 0.88 5.0 -- -- -- 7.6 -- -- -- ND ug/L 08/14/19 0.88 5.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 0.88 5.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.88 5.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.88 5.0 -- ND ND 9.1 ND -- ND ND ug/L 08/25/21 0.88 5.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.88 5.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.88 5.0 ND ND ND ND ND ND %%%I) GOLDER Page 6 of 8 November 2022 Table 6 Project No. GL21456818 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 - utanone ug 5 -- -- 20 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 100 ND ND -- ND Dry -- ND ug/L 01/31/07 -- -- 100 ND ND 42 J ND Dry ND ND ug/L 07/12/07 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/17/08 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 100 ND ND 190 ND -- ND ND (Verification) ug/L 01/20/10 -- -- 100 -- -- 89 J -- ND -- ND ug/L 07/20/10 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 100 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 100 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 100 ND ND 42 J ND -- ND ND ug/L 07/15/14 -- -- 100 ND ND Dry ND -- ND ND ug/L 01/20/15 -- -- 100 ND ND ND ND -- ND ND ug/L 07/23/15 1.3 -- 100 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.3 -- 100 ND ND ND ND -- ND ND ug/L 08/01/16 1.3 -- 100 ND ND ND ND - Dry ND ug/L 01/18/17 1.3 -- 100 ND ND ND ND -- Dry ND ug/L 07/24/17 1.3 -- 100 ND ND ND Dry -- Dry ND ug/L 02/20/18 1.3 -- 100 ND ND ND ND -- ND ND ug/L 08/08/18 1.3 5.0 -- ND ND ND ND Dry ND ND ug/L 01/15/19 1.3 5.0 -- ND ND 72 ND -- ND ND (Verification) ug/L O2/21/19 1.3 5.0 -- -- -- 130 -- -- -- ND ug/L 08/14/19 1.3 5.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 1.3 5.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 1.3 5.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 1.3 5.0 -- ND ND 50 ND -- ND ND ug/L 08/25/21 1.3 5.0 -- ND ND Dry ND -- ND ND ug/L O2/09/22 1.3 5.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 1.3 5.0 ND ND ND ND ND ND 4-Methyl-2-pentanone ug/L 12/30/05 -- -- 20 ND ND -- -- -- -- ND No SW Standard ug/L 09/26/06 -- -- 100 ND ND -- ND Dry -- ND ug/L 01/31/07 -- -- 100 ND ND 1.3 J ND Dry ND ND ug/L 07/12/07 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/17/08 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/30/08 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 100 ND ND 1.2 J ND -- ND ND (Verification) ug/L 01/20/10 -- -- 100 -- -- ND -- ND -- ND ug/L 07/20/10 -- -- 100 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 100 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 100 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 100 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 100 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 100 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 100 ND ND Dry ND -- ND ND ug/L 01/20/15 1.1 -- 100 ND ND ND ND -- ND ND ug/L 07/23/15 1.1 -- 100 ND ND Dry Dry -- Dry ND ug/L 01/12/16 1.1 -- 100 ND ND ND ND -- ND ND ug/L 08/01/16 1.1 -- 100 ND ND ND ND -- Dry ND ug/L 01/18/17 1.1 -- 100 ND ND ND ND -- Dry ND ug/L 07/24/17 1.1 -- 100 ND ND ND Dry -- Dry ND ug/L 02/20/18 1.1 -- 100 ND ND ND ND -- ND ND ug/L 08/08/18 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 1.1 5.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 1.1 5.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 1.1 5.0 -- ND ND Dry ND -- ND ND ug/L O2/09/22 1.1 5.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 1.1 5.0 ND ND ND ND ND ND Toluene ug/L 12/30/05 -- -- 5 ND ND -- ND -- -- ND SW Standard = 11 ug/L ug/L 09/26/06 -- -- 5 ND ND Dry ND Dry Dry ND ug/L 01/31/07 -- -- 5 ND ND 0.59 J ND Dry ND ND ug/L 07/12/07 -- -- 1 ND ND Dry Dry Dry Dry 0.48 J ug/L 01/17/08 -- -- 1 ND ND ND 0.4 J Dry ND ND ug/L 07/30/08 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/21/09 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/14/09 -- -- 1 ND ND Dry ND Dry Dry ND ug/L 01/07/10 -- -- 1 ND ND ND ND -- ND ND (Verification) ug/L 01/20/10 -- -- 1 -- ND -- ND ug/L 07/20/10 -- -- 1 ND ND Dry ND Dry Dry ND ug/L 01/31/11 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/18/11 -- -- 1 ND ND Dry ND Dry ND ND ug/L 01/24/12 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/17/12 -- -- 1 ND ND Dry Dry Dry Dry ND ug/L 01/22/13 -- -- 1 ND ND ND ND Dry ND ND ug/L 07/15/13 -- -- 1 ND ND ND ND -- ND ND ug/L 01/27/14 -- -- 1 ND ND ND ND -- ND ND ug/L 07/15/14 -- -- 1 ND ND Dry ND -- ND ND ug/L 01/20/15 0.14 -- 1 ND ND ND ND -- ND ND ug/L 07/23/15 0.14 -- 1 ND ND Dry Dry -- Dry ND ug/L 01/12/16 0.14 -- 1 ND ND ND ND -- ND ND ug/L 08/01/16 0.14 -- 1 ND ND ND ND -- Dry ND ug/L 01/18/17 0.14 -- 1 ND ND ND ND -- Dry ND ug/L 07/24/17 0.14 -- 1 ND ND ND Dry -- Dry ND ug/L 02/20/18 0.14 -- 1 ND ND ND ND -- ND ND ug/L 08/08/18 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 01/15/19 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 08/14/19 0.14 1.0 -- ND ND Dry ND -- ND ND ug/L 01/13/20 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 08/11/20 0.14 1.0 -- ND ND Dry ND -- Dry ND ug/L 01/26/21 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 08/25/21 0.14 1.0 -- ND ND Dry ND -- ND ND ug/L 02/09/22 0.14 1.0 -- ND ND ND ND -- ND ND ug/L 08/15/22 0.14 1.0 ND ND ND ND ND ND %%%I) GOLDER Page 7 of 8 November 2022 Table 6 Project No. GL21456818 Summary of Detected Constituents in Surface Water Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Blanks Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SWai SW-5 1,4-Dioxene ug/L 08/08/18 25 60 -- ND ND ND ND Dry ND ND Human Health SW Standard = 80 ug/L ug/L 01/15/19 1.2 2.0 -- ND ND 3.6 ND -- 1.8 J ND (Verification) ug/L 2. -- -- -- 7.0 -- -- -- ND ug/L 08/14/19 1.2 2.0 -- ND ND Dry ND -- 2.2 ND ug/L 2 2.0-- -- -- -- -- -- ND ND ug/L 08/11/20 0.80 2.0 -- -- -- Dry -- -- Dry ND ug/L 01/26/21 0.80 2.0 -- -- -- -- -- -- 2.6 ND ug/L 08/25/21 0.80 2.0 -- -- -- Dry -- -- 5.6 ND ug/L O2/09/22 0.80 2.0 -- -- -- -- -- -- 0.81 J ND ug/L 08/15/22 0.80 2.0 -- -- -- -- -- -- 2.6 ND Notes: ug/L = micrograms per liter S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit pS/cm= microsiemens per centimeter -- = no data available or not established B = blank -qualified result J = Prior to the August 2018 event, J flags are estimated values below the SWS Reporting limit. Beginning with the August 2018 event, J flags are estimated values between MDL and MRL. Blanks = field, trip and method blanks Bolded = Concentrations above Human Health or Chronic Surface Water Standard Shaded and Bold = Concentration above Acute and Chronic Surface Water Standards SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/31/07 SW Standards= NC Freshwater Aquatic Life Standards as defined in 15A NCAC 2B = Standard is a National Criteria per EPA MDL = Laboratory method detection limit MRL = Laboratory method reporting limit 1) Surface water monitoring poiint SW-1 is the upstream monitoring location 2) Historical data prior to September 2006 provided by Rowan County. 3) Surface water monitoring point SW-6 was omitted from the monitoring network during the latest revision to the facility's WQMP in relation to the Phase IV expansion. 4) The following dilutions were noted for the August 2022 event: antimony and thallium (2x). %%%I) GOLDER Page 8 of 8 November 2022 Project No. GL21456818 Table 7 Summary of Surface Water Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Dale Active MSW Landfill C&D Landfill sW-t SW-2 SW-3 SW-4 SW-6 sW-5 pH S.U. 12/30/05 7.55 7.50 - -- -- -- (field) S.U. 09/26/06 6.68 6.21 Dry 6.28 Dry Dry S.U. 01/31/07 6.55 6.13 6.34 5.94 Dry 6.59 S.U. 07/12/07 7.36 6.33 Dry Dry Dry 6.82 S.U. 01/17/08 6.24 6.52 6.57 6.25 Dry 5.99 S.U. 07/30/08 6.43 6.86 Dry Dry Dry Dry S.U. 01/21/09 6.17 5.38 6.12 5.49 Dry 5.19 S.U. 07/14/09 6.42 6.70 Dry 6.29 Dry Dry S.U. 01/07/10 6.70 6.64 6.44 6.73 -- 6.25 (Verification) S.U. 01/20/10 -- - 6.31 -- 6.50 -- S.U. 07/20/10 7.30 6.96 Dry 6.59 Dry Dry S.U. 01/31/11 6.67 5.87 5.70 6.94 Dry 5.77 S.U. 07/18/11 6.99 6.90 Dry 6.82 Dry 5.88 S.U. 01/24/12 6.72 6.58 6.61 6.23 Dry 5.91 S.U. 07/18/12 5.85 5.75 Dry Dry Dry Dry S.U. 01/22/13 6.95 6.47 6.20 6.36 Dry 6.15 S.U. 07/15/13 5.37 5.75 5.14 5.62 -- 6.09 S.U. 01/27/14 6.76 6.51 6.42 6.29 -- 5.89 S.U. 07/15/14 6.81 6.99 Dry 6.39 -- 6.49 S.U. 01/20/15 6.29 5.57 6.05 5.76 -- 5.02 S.U. 07/23/15 6.57 6.07 Dry Dry -- Dry S.U. 01/12/16 6.45 5.92 6.42 6.64 -- 5.56 S.U. 08/01/16 6.70 7.06 6.57 7.30 -- Dry S.U. 01/18/17 5.67 6.27 5.40 5.67 -- Dry S.U. 07/24/17 7.77 7.18 7.56 Dry -- Dry S.U. 02/20/18 7.27 7.31 7.07 7.06 -- 6.36 S.U. 08/08/18 6.24 7.53 6.06 8.10 -- 5.94 S.U. 01/16/19 7.15 7.02 7.11 6.63 -- 6.09 (Verification) S.U. 02/21/19 -- - 7.32 -- -- -- S.U. 08/14/19 6.91 6.96 Dry 6.60 -- 6.08 S.U. 01/13/20 7.39 6.40 7.35 5.87 -- 5.75 S.U. 08/10/20 6.84 7.06 Dry 8.54 -- Dry S.U. 01/26/21 7.74 7.17 7.39 8.71 -- 5.94 S.U. 08/24/21 7.44 6.88 Dry 8.02 -- 6.12 S.U. 0V09122 5.73 7.14 6.68 8.15 -- 6.32 S.U. 08/15/22 7.65 8.03 7.31 7.40 6.48 Specific Conductivity PS/cm 12/30/05 145 150 - -- -- -- (field) PS/cm 09/26/06 123 104 Dry 151 Dry Dry PS/CM 01/31/07 ill 258 421 110 Dry 103 PS/cm 07/12/07 180 176 Dry Dry Dry 98 PS/CM 01/17/08 233 189 90 293 Dry 117 PS/cm 07/30/08 304 320 Dry Dry Dry Dry PS/CM 01/21/09 141 154 116 74 Dry 118 PS/cm 07/14/09 119 114 Dry 174 Dry Dry p5/Cm 01/07/10 132 133 247 98 -- 107 (Verification) PS/cm 01/20/10 -- - 146 -- 68 -- p5/Cm 07/20/10 129 128 Dry 99 Dry Dry PS/cm 01/31/11 134 134 136 0.127 Dry 97 PS/CM 07/18/11 148 151 Dry 94 Dry 107 PS/cm 01/24/12 137 134 113 96 Dry 95 PS/CM 07/18/12 144 149 Dry Dry Dry Dry PS/cm 01/22/13 151 156 103 112 Dry 119 pS/Cm 07/15/13 148 145 148 87 -- 110 PS/cm 01/27/14 168 151 218 114 -- 142 p5/Cm 07/15/14 151 164 Dry 98 -- 123 PS/cm 01/20/15 127 133 103 91 -- 102 p5/Cm 07/23/15 139 163 Dry Dry -- Dry PS/cm 01/12/16 118 124 221 89 -- 147 PS/CM 08/01/16 147 167 35 103 -- Dry PS/cm 01/18/17 133 148 121 88 -- Dry PS/CM 07/24/17 166 148 116 Dry -- Dry PS/cm 02/20/18 163 159 291 105 -- 181 p5/Cm 08/08/18 120.2 52.6 388.4 109.4 -- 209.6 PS/cm 01/06/19 114.2 114.8 282.8 100.4 -- 122.2 (Verification) PS/Cm 02/21/19 -- - 355.4 -- -- -- PS/cm 08/14/19 123.3 112.2 Dry 101.9 -- 217.6 PS/CM 01/13/20 63.9 60.3 263.4 38.3 -- 30.2 PS/cm 08/10/20 129.2 130.1 Dry 97.8 -- Dry PS/CM 01/21/21 171.8 122.3 729.8 92.3 -- 197.1 PS/cm 08/24/21 220.8 141.3 dry 101.5 -- 184.3 PS/CM OV09122 115.8 123.8 332.4 87.3 -- 1104 PS/cm 08/15/22 121.7 134.2 103.2 96.6 211.3 NNNI) GOLDER Page 1 of 3 November 2022 Project No. GL21456818 Table 7 Summary of Surface Water Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Dale Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 Temperature °C 12/30/05 15.8 16.2 - -- -- -- (field) °C 09/26/06 17.4 20.0 Dry 19.6 Dry Dry "C 01/31/07 6.3 3.0 3.9 6.2 Dry 4.7 °C 07/12/07 22.5 22.32 Dry Dry Dry 19.22 "C 01/17/08 1.69 3.67 2.21 3.53 Dry 5.19 °C 07/30/08 25.76 26.19 Dry Dry Dry Dry "C 01/21/09 1.59 0.22 3.68 2.79 Dry 2.1 °C 07/14/09 22.36 21.50 Dry 22.04 Dry Dry "C 01/07/10 1.86 1.23 2.33 4.94 -- 1.43 (Verification) °C 01/20/10 -- - 5.68 -- 8.89 -- "C 07/20/10 25.61 24.57 Dry 23.99 Dry Dry °C 01/31/11 5.92 5.86 5.47 6.77 Dry 7.50 "C 07/18/11 24.77 24.71 Dry 23.21 Dry 29.36 °C 01/24/12 9.14 7.94 9.21 7.14 Dry 12.1 "C 07/18/12 25.65 25.87 Dry Dry Dry Dry °C 01/22/13 4.40 4.40 4.30 4.20 Dry 6.30 "C 07/15/13 24.40 23.51 26.41 20.64 -- 26.56 °C 01/27/14 6.8 4.6 6.5 9.4 -- 4.9 "C 07/15/14 25.2 25.9 Dry 19.1 -- 30.4 °C 01/20/15 5.8 5.7 6.1 8.6 -- 7.5 "C 07/23/15 25.2 24.0 Dry Dry -- Dry °C 01/12/16 5.4 3.9 5.3 7.4 -- 5.4 "C 08/01/16 24.6 24.6 26.3 22.6 -- Dry °C 01/18/17 9.0 13.4 12.1 13.8 -- Dry `C 07/24/17 24.9 24.2 22.4 Dry -- Dry °C 02/20/18 14.3 14.8 14.7 16.5 -- 106.7 `C 08/08/18 23.7 24.1 26.3 23.6 -- 23.60 °C 01/16/19 5.5 5.6 4.3 7.2 -- 7.30 (Verification) °C 02/21/19 -- - 5.0 -- -- -- °C 08/14/19 23.9 24.0 Dry 21.5 -- 25.1 `C 01/13/20 13.1 13.0 14.1 13.5 -- 13.2 °C 08/10/20 24.5 24.8 Dry 21.1 -- Dry `C 01/26/21 10.4 9.7 8.2 8.7 -- 9.3 °C 08/24/21 26.3 25.1 Dry 24.6 -- 25.5 `C OV09122 5.4 4.9 7.1 4.6 -- 11.2 °C 08/15/22 21.4 21.6 21.6 20.0 25.1 Turbidity NTU 09/26/06 84.4 193 Dry >1000 Dry Dry (field) NTU 01/31/07 19.3 57.3 56.5 26.8 Dry 817 NTU 07/12/07 0.0 0.0 Dry Dry Dry >1000 NTU 01/17/08 10.2 19.9 70.4 128 Dry 48.3 NTU 07/30/08 60.3 27.9 Dry Dry Dry Dry NTU 01/21/09 36.4 15.7 91.1 14.8 Dry 12.4 NTU 07/14/09 316 253 Dry 15.4 Dry Dry NTU 01/07/10 28.7 21.4 32.8 11.0 -- 49.8 (Verification) NTU 01/20/10 -- - - -- -- -- NTU 07/20/10 131 146 Dry 29.6 Dry Dry NTU 01/31/11 14.6 11.1 70.9 8.10 Dry 19.0 NTU 07/18/11 25.6 16.4 Dry 15.4 Dry 11.6 NTU 01/24/12 20.2 18.9 95.4 14.8 Dry 36.2 NTU 07/18/12 31.4 23.5 Dry Dry Dry Dry NTU 01/22/13 15.8 37.5 213 15.7 Dry 32.7 NTU 07/15/13 35.0 45.6 73.0 22.9 -- 19.4 NTU 01/27/14 47.7 39.5 63.6 33.2 -- 65.9 NTU 07/15/14 18.8 17.1 Dry 21.5 -- 26.9 NTU 01/20/15 12.3 15.9 15.6 7.12 -- 38.7 NTU 07/23/15 17.4 27.3 Dry Dry -- Dry NTU 01/12/16 23.3 24.9 18.3 9.05 -- 19.4 NTU 08/01/16 22.0 18.0 65.3 10.7 -- Dry NTU 01/18/17 14.4 13.4 32.6 7.7 -- Dry NTU 07/24/17 9.48 18.1 15.5 Dry -- Dry NTU 02/20/18 25.8 21.2 42.0 14.4 -- 30.6 NTU 08/08/18 220 164 43.9 12.6 -- 25.8 NTU 01/16/19 60.4 48.5 147 9.14 -- 12.7 (Verification) NTU 02/21/19 -- - 235 -- -- -- NTU 08/14/19 992 693 Dry 16.3 -- 25.2 NTU 01/13/20 70.7 368 108 128 -- 116 NTU 08/10/20 157 172 Dry 13.4 -- Dry NTU 01/26/21 47.5 184 70.0 11.6 -- 17.9 NTU 08/24/21 69.3 86.1 Dry 15.3 -- 20.8 NTU 02/09/22 -- 45.0 7.84 21.2 -- 46.1 NTU 08/25/22 151 77.8 122 18.3 46.4 NNNI) GOLDER Page 2 of 3 November 2022 Project No. GL21456818 Table 7 Summary of Surface Water Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 Surface Water Monitoring Points Upstream Downstream Detected Monitoring Constituents/Analytes Units Sample Date Active MSW Landfill C&D Landfill SW-1 SW-2 SW-3 SW-4 SW-6 SW-5 Oxygen Reduction Potential mV 09/26/06 86 124 Dry -7 Dry Dry (field) mV 01/31/07 32 202 73 211 -- 212 mV 07/12/07 90 27 - -- -- -- mV 01/17/08 -- 173 - -- Dry -- mV 07/30/08 -6 108 Dry Dry Dry Dry mV 01/21/09 73.5 162.4 84.2 201.4 Dry 164.8 mV 07/14/09 127.5 106.8 Dry -6.6 Dry Dry mV 01/07/10 42.3 141.5 4.5 24.9 -- 130.6 (Verification) mV 01/20/10 -- - 108.0 -- 80.5 -- mV 07/20/10 -5.3 27.7 Dry 29.6 Dry Dry mV 01/31/11 89.1 173.1 90.9 12.6 Dry 282.0 mV 07/18/11 65.2 76.2 Dry 56.1 Dry 72.1 my 01/24/12 -121.7 -150.2 -107.5 -174.4 Dry -147.2 mV 07/18/12 45.5 33.0 Dry Dry Dry Dry my 01/22/13 -- - - -- Dry -- mV 07/15/13 114.2 130.1 66.1 128.3 -- 93.1 my 01/27/14 34.9 93.2 21.8 34.8 -- 102.9 mV 07/15/14 214.6 102.3 Dry 60.0 -- 103.7 my 01/20/15 85.0 155.0 83.5 114.1 -- 183.7 my 07/23/15 83.7 -57.5 Dry Dry -- Dry mV 01/12/16 228.8 187.2 342.8 227.1 -- 137.4 mV 08/01/16 121.5 121.7 164.2 141.8 -- Dry mV 01/18/17 142.5 168.1 176.1 154.8 -- Dry mV 07/24/17 -- - 67.6 Dry -- Dry mV 02/20/18 92.5 133.6 110.7 78.30 -- 106.70 mV 08/08/18 196.4 185.9 - 157.8 -- 190.8 mV 01/15/19 69.6 94.7 -3.3 52.7 -- 165.5 (Vedfcation) mV 02/21/19 -- - 296.8 -- -- -- mV 08/14/19 350.8 250.8 Dry 340.3 -- 165.2 mV 01/13/20 143.1 178.5 41.2 157.0 -- 139.5 mV 08/10/20 37.5 122.8 Dry -8.3 -- Dry mV 01/26/21 31.8 135.6 -79.9 -4.2 -- 144.8 mV 08/24/21 158.3 158.9 Dry 10.7 -- 162.2 mV 02/09/22 182.9 137.5 139.9 33.8 -- -52.5 mV 08/15/22 210.8 204.2 225.7 154.8 64.5 Dissolved Oxygen mg/L 09/26/06 -- - Dry -- -- Dry (field) mg/L 01/31/07 13 14.4 14 13.4 Dry 14.1 mg/L 07/12/07 8.5 9.3 Dry Dry Dry -- mg/L 01/17/08 -- 13.94 - -- Dry -- mg/L 07/30/08 7.74 7.89 Dry Dry Dry Dry mg/L 01/21/09 11.48 12.6 8.29 8.13 Dry 6.21 mg/L 07/14/09 6.71 7.31 Dry 3.78 Dry Dry mg/L 01/07/10 14.72 15.01 9.14 11.00 -- 10.22 (Verification) mg/L 01/20/10 -- - - -- 9.60 -- mg/L 07/20/10 8.23 6.35 Dry 4.03 Dry Dry mg/L 01/31/11 14.84 13.85 5.52 13.81 Dry 13.21 mg/L 07/18/11 4.10 3.91 Dry 4.60 Dry 4.86 mg/L 01/24/12 15.54 13.32 15.82 12.71 Dry 11.85 mg/L 07/18/12 10.75 10.01 Dry Dry Dry Dry mg/L 01/22/13 -- - - -- Dry -- mg/L 07/15/13 8.98 7.34 5.82 8.73 -- 6.47 mg/L 01/27/14 11.38 12.15 9.58 8.44 -- 7.32 mg/L 07/15/14 7.56 6.53 Dry 6.04 -- 9.82 mg/L 01/20/15 11.36 10.79 10.46 11.29 -- 9.10 mg/L 07/23/15 6.38 5.66 Dry Dry -- Dry mg/L 01/12/16 11.81 13.77 11.27 11.91 -- 1.65 mg/L 08/01/16 6.98 6.64 6.65 6.56 -- Dry mg/L 01/18/17 8.66 8.53 6.19 6.50 -- Dry mg/L 07/24/17 4.44 7.23 7.46 Dry -- Dry mg/L 02/20/18 10.44 9.96 8.60 7.83 -- 15.10 mg/L 08/08/18 6.95 6.50 - 5.13 -- 0.12 mg/L 01/16/19 11.78 11.84 9.29 9.98 -- 5.47 (Verification) mg/L 02/21/19 -- - 5.04 -- -- -- mg/L 08/14/19 7.34 6.37 Dry 4.77 -- 0.14 mg/L 01/13/20 8.32 9.29 6.53 9.84 -- 8.32 mg/L 08/10/20 6.82 7.40 Dry 6.82 -- Dry mg/L 01/26/21 8.73 7.55 6.59 7.00 -- 7.68 mg/L 08/24/21 6.94 7.23 Dry 7.31 -- 7.37 mg/L OV09/22 12.11 7.62 7.80 7.85 -- 4.01 mg/L 08/15/22 6.62 5.21 6.20 5.00 4.96 Notes: mg/L = milligrams per liter -- = no data available S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the staled reporting limit uS/cm= microsiemens per centimeter Monitoring point SW-6 was omitted from the monitoring network during a revision to the facility's WOMP. NNNI) GOLDER Page 3 013 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Antimony ug/L 09/27/06 -- 30 ND ug/L 01 /31 /07 -- 6 0.73 J ND ug/L 07/12/07 -- 6 4.34 J ND ug/L 01/17/08 -- 6 2.85 J ND ug/L 07/30/08 6 1.8 J ND ug/L 01 /22/09 -- 6 1.62 J ND ug/L 07/14/09 -- 6 3.04 J ND ug/L 01/07/10 -- 6 3.46 J ND ug/L 07/20/10 -- 6 3.79 J ND ug/L 01/31/11 6 ND ND ug/L 07/18/11 6 ND ND ug/L 01/25/12 -- 6 1.92 J ND ug/L 07/18/12 -- 6 5.52 J ND ug/L 01/23/13 6 ND 0.35 J ug/L 07/17/13 6 ND ND ug/L 01/27/14 6 ND ND ug/L 07/16/14 -- 6 2.61 J ND ug/L 01/20/15 -- 6 9.66 J ND ug/L 07/23/15 -- 6 3.32 J ND ug/L 01/12/16 6 ND ND ug/L 08/01/16 -- 6 ND ND ug/L 01/19/17 3.70 -- 6 ND ND ug/L 07/27/17 3.70 -- 6 ND ND ug/L 02/20/18 3.70 -- 6 ND ND ug/L 08/08/18 1.85 5.00 -- 2.32 J ND ug/L 01/16/19 3.70 10.0 ND ND ug/L 08/15/19 3.70 10.0 ND ND ug/L 01/16/20 3.70 10.0 ND ND ug/L 08/12/20 3.70 10.0 ND ND ug/L 01/26/21 0.740 2.00 3.51 ND ug/L 08/25/21 3.70 10.0 - 7.52 J ND ug/L 02/10/22 2.50 5.00 21.6 ND ug/L 08/15/22 3.70 10.0 -- 5.20 J ND Arsenic ug/L 09/27/06 -- -- 10 ND ug/L 01/31/07 10 ND ND ug/L 07/12/07 10 ND ND ug/L 01/17/08 10 ND ND ug/L 07/30/08 10 ND 3.2 ug/L 01/22/09 10 ND ND ug/L 07/14/09 10 10.8 B 3.84 ug/L 01/07/10 10 3.94 J ND ug/L 07/20/10 10 14 ND ug/L 01/31/11 -- 10 ND ND ug/L 07/18/11 10 7.59 J ND ug/L 01/25/12 10 ND ND ug/L 07/18/12 10 ND ND ug/L 01/23/13 - 10 ND ND ug/L 07/17/13 -- 10 ND ND ug/L 01/27/14 -- 10 ND ND ug/L 07/16/14 -- 10 ND ND ug/L 01/20/15 10 ND ND ug/L 07/23/15 -- 10 ND ND ug/L 01/12/16 -- 10 ND ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 6.80 -- 10 ND ND ug/L 07/27/17 6.80 10 15.3 ND ug/L 02/20/18 6.80 -- 10 ND ND ug/L 08/08/18 7.60 10.0 -- ND ND ug/L 01/16/19 7.60 10.0 ND ND ug/L 08/15/19 7.60 10.0 ND ND ug/L 01/16/20 7.60 10.0 ND ND ug/L 08/12/20 7.60 10.0 ND ND ug/L 01/26/21 7.60 10.0 ND ND ug/L 08/25/21 7.60 10.0 ND ND ug/L 02/10/22 7.60 10.0 11.9 ND ug/L 08/15/22 7.60 10.0 9.83 J ND %%til) GOLDER Page 1 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Barium ug/L 09/27/06 -- 500 ND -- ug/L 01/31/07 100 381 0.2 ug/L 07/12/07 -- 100 357 ND ug/L 01/17/08 -- 100 149 ND ug/L 07/30/08 -- 100 702 ND ug/L 01 /22/09 -- 100 443 ND ug/L 07/14/09 -- 100 585 ND ug/L 01/07/10 100 465 0.418 ug/L 07/20/10 -- 100 470 ND ug/L 01/31/11 -- 100 101 ND ug/L 07/18/11 -- 100 154 ND ug/L 01/25/12 -- 100 131 ND ug/L 07/18/12 -- 100 102 ND ug/L 01/23/13 100 131 1.24 J ug/L 07/17/13 100 208 1.75 ug/L 01/27/14 100 182 1.18 J ug/L 07/16/14 -- 100 124 ND ug/L 01/20/15 100 435 1.01 ug/L 07/23/15 -- 100 150 ND ug/L 01/12/16 100 236 ND ug/L 08/01/16 -- 100 178 ND ug/L 01/19/17 1.00 -- 100 183 ND ug/L 07/27/17 1.00 100 683 2.03 J ug/L 02/20/18 1.00 -- 100 279 ND ug/L 08/08/18 1.10 10.0 -- 141 3.31 ug/L 01/16/19 1.10 10.0 631 ND ug/L 08/15/19 1.10 10.0 640 ND ug/L 01/16/20 1.10 10.0 562 1.11 ug/L 08/12/20 1.10 10.0 604 ND ug/L 01/26/21 1.10 10.0 631 ND ug/L 08/25/21 1.10 10.0 93.6 ND ug/L 02/10/22 1.10 10.0 587 ND ug/L 08/15/22 1.10 10.0 -- 609 ND Cadmium ug/L 09/27/06 -- -- 1 ND ug/L 01/31/07 1 ND ND ug/L 07/12/07 1 ND ND ug/L 01/17/08 1 ND ND ug/L 07/30/08 1 ND ND ug/L 01/22/09 1 ND ND ug/L 07/14/09 1 0.534 J ND ug/L 01/07/10 1 ND ND ug/L 07/20/10 1 ND ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.360 -- 1 ND ND ug/L 07/27/17 0.360 -- 1 0.629 J ND ug/L 02/20/18 0.360 -- 1 ND ND ug/L 08/08/18 0.360 1.00 -- ND ND ug/L 01/16/19 0.360 1.00 ND ND ug/L 08/15/19 0.360 1.00 ND ND ug/L 01/16/20 0.360 1.00 ND ND ug/L 08/12/20 0.360 1.00 ND ND ug/L 01/26/21 0.360 1.00 ND ND ug/L 08/25/21 0.360 1.00 - ND ND ug/L 02/10/22 0.360 1.00 ND ND ug/L 08/15/22 0.360 1.00 ND ND %%til) GOLDER Page 2 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Chromium ug/L 09/27/06 -- 10 ND ug/L 01/31/07 -- 10 ND ND ug/L 07/12/07 -- 10 ND ND ug/L 01/17/08 -- 10 ND ND ug/L 07/30/08 -- 10 ND ND ug/L 01/22/09 -- 10 ND ND ug/L 07/14/09 10 0.534 J ND ug/L 01/07/10 -- 10 12 ND ug/L 07/20/10 10 14.5 ND ug/L 01/31/11 -- 10 4.5 J ND ug/L 07/18/11 10 4.07 J ND ug/L 01/25/12 -- 10 7 J ND ug/L 07/18/12 10 4.21 J ND ug/L 01/23/13 10 4.92 B 1.5 ug/L 07/17/13 10 4.34 J ND ug/L 01/27/14 10 9.33 J ND ug/L 07/16/14 10 4.43 J ND ug/L 01/20/15 10 36.4 ND ug/L 07/23/15 10 5.66 J ND ug/L 01/12/16 10 6.37 J ND ug/L 08/01/16 -- 10 2.73 J ND ug/L 01/19/17 1.40 -- 10 3.49 J ND ug/L 07/27/17 1.40 -- 10 31.6 ND ug/L 02/20/18 1.40 -- 10 10.7 ND ug/L 08/08/18 1.40 10.0 -- 3.35 B 1.66 ug/L 01/16/19 1.40 10.0 13.6 ND ug/L 08/15/19 1.40 10.0 17.5 ND ug/L 01/16/20 1.40 10.0 7.58 J ND ug/L 08/12/20 1.40 10.0 22.7 ND ug/L 01/26/21 1.40 10.0 13.1 ND ug/L 08/25/21 1.40 10.0 - ND ND ug/L 02/10/22 1.40 10.0 10.9 ND ug/L 08/15/22 1.40 10.0 -- 19.7 ND Cobalt ug/L 09/27/06 -- -- 10 11.4 ND ug/L 01/31/07 10 5.6 J ND ug/L 07/12/07 10 19.8 ND ug/L 01/17/08 10 25.8 ND ug/L 07/30/08 10 9.4 J 1.1 ug/L 01/22/09 10 14.3 1.5 ug/L 07/14/09 10 19.2 ND ug/L 01/07/10 10 14.3 ND ug/L 07/20/10 10 12.2 ND ug/L 01/31/11 10 8.21 J ND ug/L 07/18/11 10 8.26 J ND ug/L 01/25/12 10 7.77 J ND ug/L 07/18/12 10 7.68 J ND ug/L 01/23/13 10 6.57 J ND ug/L 07/17/13 10 9.38 J ND ug/L 01/27/14 10 12.2 ND ug/L 07/16/14 10 8.42 J ND ug/L 01/20/15 10 20.4 ND ug/L 07/23/15 10 12.6 ND ug/L 01/12/16 10 16.2 ND ug/L 08/01/16 -- 10 10.1 ND ug/L 01/19/17 1.10 -- 10 17.4 ND ug/L 07/27/17 1.10 -- 10 23.0 ND ug/L 02/20/18 1.10 -- 10 42.0 1.22 ug/L 08/08/18 1.40 10.0 -- 10.5 ND ug/L 01/16/19 1.40 10.0 8.16 J ND ug/L 08/15/19 1.40 10.0 11.0 ND ug/L 01/16/20 1.40 10.0 4.75 J ND ug/L 08/12/20 1.40 10.0 12.3 ND ug/L 01/26/21 1.40 10.0 6.71 J ND ug/L 08/25/21 1.40 10.0 - 1.53 J ND ug/L 02/10/22 1.40 10.0 7.86 J ND ug/L 08/15/22 1.40 10.0 12.4 ND %%til) GOLDER Page 3 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Copper ug/L 09/27/06 -- 200 ND ug/L 01/31/07 -- 10 ND ND ug/L 07/12/07 -- 10 ND ND ug/L 01/17/08 -- 10 ND ND ug/L 07/30/08 -- 10 ND ND ug/L 01/22/09 -- 10 ND ND ug/L 07/14/09 -- 10 ND 1.04 ug/L 01/07/10 -- 10 ND ND ug/L 07/20/10 -- 10 ND 3.50 ug/L 01/31/11 10 1.91 J ND ug/L 07/18/11 -- 10 ND ND ug/L 01/25/12 -- 10 ND ND ug/L 07/18/12 10 ND ND ug/L 01/23/13 10 ND ND ug/L 07/17/13 -- 10 ND ND ug/L 01/27/14 -- 10 ND ND ug/L 07/16/14 -- 10 ND ND ug/L 01/20/15 10 2.88 J ND ug/L 07/23/15 -- 10 ND 1.90 ug/L 01/12/16 10 4.66 B ND ug/L 08/01/16 -- 10 4.55 J ND ug/L 01/19/17 1.60 -- 10 3.72 B 4.80 ug/L 07/27/17 1.60 -- 10 4.26 J 4.18 ug/L 02/20/18 1.60 -- 10 ND ND ug/L 08/08/18 1.60 10.0 -- ND ND ug/L 01/16/19 1.60 10.0 ND ND ug/L 08/15/19 1.60 10.0 ND ND ug/L 01/16/20 1.60 10.0 ND ND ug/L 08/12/20 1.60 10.0 1.61 J ND ug/L 01/26/21 1.60 10.0 ND ND ug/L 08/25/21 1.60 10.0 - ND ND ug/L 02/10/22 1.60 10.0 ND ND ug/L 08/15/22 1.60 10.0 -- ND ND Lead ug/L 09/27/06 -- -- 10 ND ug/L 01/31/07 10 ND ND ug/L 07/12/07 -- 10 3.3 J ND ug/L 01/17/08 -- 10 5.5 J ND ug/L 07/30/08 -- 10 ND ND ug/L 01/22/09 10 ND ND ug/L 07/14/09 10 7.04 B 3.4 ug/L 01/07/10 10 5.12 B 1.58 ug/L 07/20/10 -- 10 6.4 J ND ug/L 01/31/11 -- 10 ND ND ug/L 07/18/11 -- 10 ND ND ug/L 01/25/12 -- 10 ND ND ug/L 07/18/12 10 2.79 B 2.87 ug/L 01/23/13 10 3.07 B 1.97 ug/L 07/17/13 -- 10 ND ND ug/L 01/27/14 -- 10 ND ND ug/L 07/16/14 -- 10 ND ND ug/L 01/20/15 -- 10 ND ND ug/L 07/23/15 -- 10 ND ND ug/L 01/12/16 10 3.95 J ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 3.10 -- 10 ND ND ug/L 07/27/17 3.10 10 11.2 ND ug/L 02/20/18 3.10 -- 10 ND ND ug/L 08/08/18 3.10 10.0 -- ND ND ug/L 01/16/19 3.10 10.0 3.20 J ND ug/L 08/15/19 3.10 10.0 ND ND ug/L 01/16/20 3.10 10.0 ND ND ug/L 08/12/20 3.10 10.0 ND ND ug/L 01/26/21 3.10 10.0 ND ND ug/L 08/25/21 3.10 10.0 ND ND ug/L 02/10/22 3.10 10.0 ND ND ug/L 08/15/22 3.10 10.0 ND ND %%til) GOLDER Page 4 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Nickel ug/L 09/27/06 -- 50 ND ug/L 01/31/07 50 15.1 ND ug/L 07/12/07 -- 50 34.5 J ND ug/L 01/17/08 -- 50 17.4 J ND ug/L 07/30/08 50 21.4 B 12.4 ug/L 01/22/09 -- 50 20.6 J ND ug/L 07/14/09 50 39.1 J 0.882 ug/L 01/07/10 50 22 J ND ug/L 07/20/10 -- 50 30.8 J ND ug/L 01/31/11 -- 50 20.9 J ND ug/L 07/18/11 -- 50 21.6 J ND ug/L 01/25/12 -- 50 20.6 J ND ug/L 07/18/12 -- 50 20.8 J ND ug/L 01/23/13 -- 50 21.3 J ND ug/L 07/17/13 50 27 J ND ug/L 01/27/14 -- 50 26.3 J ND ug/L 07/16/14 -- 50 27.4 J ND ug/L 01/20/15 50 61.2 ND ug/L 07/23/15 -- 50 38.1 J ND ug/L 01/12/16 -- 50 12.3 J ND ug/L 08/01/16 -- -- 50 10.7 J ND ug/L 01/19/17 2.20 -- 50 10.2 J ND ug/L 07/27/17 2.20 -- 50 18.1 J ND ug/L 02/20/18 2.20 -- 50 15.7 J ND ug/L 08/08/18 2.20 10.0 -- 21.0 ND ug/L 01/16/19 2.20 10.0 29.4 ND ug/L 08/15/19 2.20 10.0 43.2 ND ug/L 01/16/20 2.20 10.0 19.1 ND ug/L 08/12/20 2.20 10.0 47.9 ND ug/L 01/26/21 2.20 10.0 28.5 ND ug/L 08/25/21 2.20 10.0 - 4.45 J ND ug/L 02/10/22 2.20 10.0 30.8 ND ug/L 08/15/22 2.20 10.0 -- 49.3 ND Silver ug/L 09/27/06 -- -- 10 ND ug/L 01/31/07 10 ND ND ug/L 07/12/07 -- 10 ND ND ug/L 01/17/08 -- 10 ND ND ug/L 07/30/08 -- 10 ND ND ug/L 01 /22/09 10 ND 2.1 ug/L 07/14/09 10 1.11 J ND ug/L 01/07/10 10 2.6 J ND ug/L 07/20/10 -- 10 ND ND ug/L 01/31/11 -- 10 ND ND ug/L 07/18/11 -- 10 ND ND ug/L 01/25/12 -- 10 ND ND ug/L 07/18/12 -- 10 ND ND ug/L 01/23/13 -- 10 ND ND ug/L 07/17/13 -- 10 ND ND ug/L 01/27/14 -- 10 ND ND ug/L 07/16/14 10 2.07 J ND ug/L 01/20/15 -- 10 ND 3.39 ug/L 07/23/15 -- 10 ND ND ug/L 01/12/16 -- 10 ND ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 1.90 -- 10 ND ND ug/L 07/27/17 1.90 -- 10 ND ND ug/L 02/20/18 1.90 -- 10 2.33 J ND ug/L 08/08/18 1.90 10.0 -- ND ND ug/L 01/16/19 1.90 10.0 ND ND ug/L 08/15/19 1.90 10.0 ND ND ug/L 01/16/20 1.90 10.0 ND ND ug/L 08/12/20 1.90 10.0 ND ND ug/L 01/26/21 1.90 10.0 ND ND ug/L 08/25/21 1.90 10.0 ND ND ug/L 02/10/22 1.90 10.0 ND ND ug/L 08/15/22 1.90 10.0 ND ND %%til) GOLDER Page 5 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Thallium ug/L 09/27/06 10 ND ug/L 01/31/07 5.5 ND ND ug/L 07/12/07 5.5 ND ND ug/L 01/17/08 5.5 0.083 J ND ug/L 07/30/08 5.5 ND ND ug/L 01/22/09 5.5 ND 0.096 ug/L 07/14/09 5.5 ND ND ug/L 01/07/10 5.5 ND ND ug/L 07/20/10 -- 5.5 2.85 J ND ug/L 01/31/11 5.5 ND ND ug/L 07/18/11 5.5 ND ND ug/L 01/25/12 5.5 ND ND ug/L 07/18/12 5.5 ND ND ug/L 01/23/13 5.5 ND ND ug/L 07/17/13 5.5 ND ND ug/L 01/27/14 5.5 ND ND ug/L 07/16/14 5.5 ND ND ug/L 01/20/15 5.5 ND ND ug/L 07/23/15 5.5 ND ND ug/L 01/12/16 5.5 ND ND ug/L 08/01/16 -- 5.5 2.21 J ND ug/L 01/19/17 1.10 -- 5.5 9.09 J ND ug/L 07/27/17 1.10 5.5 ND ND ug/L 02/20/18 1.10 -- 5.5 ND ND ug/L 08/08/18 0.550 5.00 -- ND ND ug/L 01/16/19 1.10 10.0 ND ND ug/L 08/15/19 1.10 10.0 ND ND ug/L 01/16/20 1.10 10.0 ND ND ug/L 08/12/20 1.10 10.0 ND ND ug/L 01/26/21 0.220 2.00 ND ND ug/L 08/25/21 1.10 10.0 - ND ND ug/L 02/10/22 0.0600 0.100 ND ND ug/L 08/15/22 1.10 10.0 -- ND ND Vanadium ug/L 09/27/06 -- -- 40 ND ug/L 01/31/07 25 ND ND ug/L 07/12/07 25 ND ND ug/L 01/17/08 25 ND ND ug/L 07/30/08 25 ND ND ug/L 01/22/09 25 ND 1.4 ug/L 07/14/09 25 8.09 J ND ug/L 01/07/10 25 4.77 J ND ug/L 07/20/10 25 14.1 J ND ug/L 01/31/11 25 ND ND ug/L 07/18/11 25 ND ND ug/L 01/25/12 25 ND ND ug/L 07/18/12 25 1.95 J ND ug/L 01/23/13 -- 25 ND ND ug/L 07/17/13 -- 25 ND ND ug/L 01/27/14 25 2.67 J ND ug/L 07/16/14 -- 25 ND ND ug/L 01/20/15 -- 25 13.1 J ND ug/L 07/23/15 -- 25 ND ND ug/L 01/12/16 25 3.71 J ND ug/L 08/01/16 -- 25 4.98 J ND ug/L 01/19/17 1.40 -- 25 ND ND ug/L 07/27/17 1.40 -- 25 15.1 J ND ug/L 02/20/18 1.40 -- 25 6.20 J ND ug/L 08/08/18 1.40 10.0 -- ND ND ug/L 01/16/19 1.40 10.0 6.29 J ND ug/L 08/15/19 1.40 10.0 10.6 ND ug/L 01/16/20 1.40 10.0 2.64 J ND ug/L 08/12/20 1.40 10.0 12.4 ND ug/L 01/26/21 1.40 10.0 7.58 J ND ug/L 08/25/21 1.40 10.0 - ND ND ug/L 02/10/22 1.40 10.0 3.27 J ND ug/L 08/15/22 1.40 10.0 7.50 J ND %%til) GOLDER Page 6 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Zinc ug/L 09/27/06 -- 50 94.5 ND ug/L 01 /31 /07 10 117 1.4 ug/L 07/12/07 -- 10 1120 ND ug/L 01/17/08 -- 10 1200 ND ug/L 07/30/08 10 51.9 ND ug/L 01/22/09 -- 10 104 ND ug/L 07/14/09 -- 10 166 ND ug/L 01/07/10 -- 10 247 ND ug/L 07/20/10 -- 10 494 ND ug/L 01/31/11 10 83.8 ND ug/L 07/18/11 -- 10 50 ND ug/L 01/25/12 10 69.2 ND ug/L 07/18/12 10 39.2 ND ug/L 01/23/13 10 46.6 ND ug/L 07/17/13 - 10 27 ND ug/L 01/27/14 10 44.7 ND ug/L 07/16/14 10 22.7 ND ug/L 01/20/15 10 72.5 ND ug/L 07/23/15 10 24.6 ND ug/L 01/12/16 10 51.3 ND ug/L 08/01/16 -- 10 12.6 ND ug/L 01/19/17 4.40 -- 10 10.3 ND ug/L 07/27/17 4.40 -- 10 684 ND ug/L 02/20/18 4.40 -- 10 263 ND ug/L 08/08/18 4.40 10.0 -- 11.9 ND ug/L 01/16/19 4.40 10.0 5.61 J ND ug/L 08/15/19 4.40 10.0 6.70 J ND ug/L 01/16/20 4.40 10.0 7.64 J ND ug/L 08/12/20 4.40 10.0 ND ND ug/L 01/26/21 4.40 10.0 4.53 J ND ug/L 08/25/21 4.40 10.0 - 7.43 J ND ug/L 02/10/22 4.40 10.0 4.69 J ND ug/L 08/15/22 4.40 10.0 -- 9.19 J ND Acetone ug/L 09/27/06 -- -- 100 ND ND ug/L 01/31/07 100 20 ND ug/L 07/12/07 100 1200 0.93 ug/L 01/17/08 100 660 ND ug/L 07/30/08 100 800 ND ug/L 01 /22/09 - 100 1700 ND ug/L 07/14/09 -- 100 670 ND ug/L 01/07/10 -- 100 1000 ND ug/L 07/20/10 -- 100 2000 ND ug/L 01/31/11 -- 100 ND ND ug/L 07/18/11 -- 100 ND ND ug/L 01/25/12 100 5.8 J ND ug/L 07/18/12 100 13 J ND ug/L 01/23/13 -- 100 ND ND ug/L 07/17/13 -- 100 ND ND ug/L 01/27/14 100 36 J ND ug/L 07/16/14 -- 100 ND ND ug/L 01/20/15 100 660 ND ug/L 07/23/15 -- 100 ND ND ug/L 01/12/16 -- 100 ND ND ug/L 08/01/16 -- -- 100 ND ND ug/L 01/19/17 10 -- 100 150 ND ug/L 07/27/17 10 -- 100 2700 ND ug/L 02/20/18 50 -- 100 870 ND ug/L 08/08/18 10 20 -- ND ND ug/L 01/16/19 10 20 200 ND ug/L 08/15/19 10 20 170 ND ug/L 01/16/20 10 20 ND ND ug/L 08/12/20 10 20 21 ND ug/L 01/26/21 100 200 260 ND ug/L 08/25/21 100 200 - ND 38 ug/L 02/10/22 500 1000 2100 ND ug/L 08/15/22 100 200 ND 20 %%til) GOLDER Page 7 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Benzene ug/L 09/27/06 5 ND ND ug/L 01/31/07 3 ND ND ug/L 07/12/07 1 ND ND ug/L 01/17/08 -- 1 5.2 ND ug/L 07/30/08 1 6 J ND ug/L 01/22/09 1 51 ND ug/L 07/14/09 1 25 ND ug/L 01/07/10 1 25 ND ug/L 07/20/10 1 30 ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.15 -- 1 ND ND ug/L 07/27/17 0.15 -- 1 12 J ND ug/L 02/20/18 0.15 -- 1 ND ND ug/L 08/08/18 0.15 1.0 -- ND ND ug/L 01/16/19 0.15 1.0 0.76 J ND ug/L 08/15/19 0.15 1.0 ND ND ug/L 01/16/20 0.15 1.0 ND ND ug/L 08/12/20 0.15 1.0 ND ND ug/L 01/26/21 1.5 10 ND ND ug/L 08/25/21 1.5 10 - ND ND ug/L 02/10/22 0.15 1.0 5.0 ND ug/L 08/15/22 1.5 10 -- ND ND Carbon disulfide ug/L 09/27/06 -- -- 100 ND ND ug/L 01/31/07 -- 100 0.9 J ND ug/L 07/12/07 -- 100 ND ND ug/L 01/17/08 -- 100 ND ND ug/L 07/30/08 -- 100 ND ND ug/L 01/22/09 -- 100 ND ND ug/L 07/14/09 -- 100 ND ND ug/L 01/07/10 -- 100 ND ND ug/L 07/20/10 -- 100 ND ND ug/L 01/31/11 -- 100 ND ND ug/L 07/18/11 100 ND ND ug/L 01/25/12 100 ND ND ug/L 07/18/12 -- 100 ND ND ug/L 01/23/13 -- 100 ND ND ug/L 07/17/13 -- 100 ND ND ug/L 01/27/14 -- 100 ND ND ug/L 07/16/14 -- 100 ND ND ug/L 01/20/15 100 ND ND ug/L 07/23/15 100 ND ND ug/L 01/12/16 100 ND ND ug/L 08/01/16 -- 100 ND ND ug/L 01/19/17 1.5 100 ND ND ug/L 07/27/17 -- 100 ND ND ug/L 02/20/18 7.5 -- 100 ND ND ug/L 08/08/18 1.5 5.0 -- ND ND ug/L 01/16/19 1.5 5.0 ND ND ug/L 08/15/19 1.5 5.0 ND ND ug/L 01/16/20 1.5 5.0 ND ND ug/L 08/12/20 1.5 5.0 ND ND ug/L 01/26/21 15 50 ND ND ug/L 08/25/21 15 50 ND ND ug/L 02/10/22 1.5 5.0 ND ND ug/L 08/15/22 15 50 ND ND %%til) GOLDER Page 8 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Chlorobenzene ug/L 09/27/06 -- 5 ND ND ug/L 01/31/07 3 ND ND ug/L 07/12/07 3 ND ND ug/L 01/17/08 3 ND ND ug/L 07/30/08 3 ND ND ug/L 01/22/09 3 ND ND ug/L 07/14/09 3 ND ND ug/L 01/07/10 3 2.2 J ND ug/L 07/20/10 3 ND ND ug/L 01/31/11 3 ND ND ug/L 07/18/11 3 ND ND ug/L 01/25/12 3 ND ND ug/L 07/18/12 3 ND ND ug/L 01/23/13 3 ND ND ug/L 07/17/13 3 ND ND ug/L 01/27/14 3 ND ND ug/L 07/16/14 3 ND ND ug/L 01/20/15 3 ND ND ug/L 07/23/15 3 ND ND ug/L 01/12/16 3 ND ND ug/L 08/01/16 -- 3 ND ND ug/L 01/19/17 0.17 -- 3 ND ND ug/L 07/27/17 0.17 -- 3 ND ND ug/L 02/20/18 0.85 -- 3 ND ND ug/L 08/08/18 0.17 1.0 -- ND ND ug/L 01/16/19 0.17 1.0 ND ND ug/L 08/15/19 0.17 1.0 ND ND ug/L 01/16/20 0.17 1.0 ND ND ug/L 08/12/20 0.17 1.0 ND ND ug/L 01/26/21 1.7 10 ND ND ug/L 08/25/21 1.7 10 - ND ND ug/L 02/10/22 0.17 1.0 ND ND ug/L 08/15/22 1.7 10 -- ND ND 1,4-Dichlorobenzene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 3 ND ND ug/L 07/12/07 -- 1 8.7 ND ug/L 01/17/08 1 ND ND ug/L 07/30/08 1 6.5 J ND ug/L 01/22/09 1 12 ND ug/L 07/14/09 1 15 ND ug/L 01/07/10 1 15 ND ug/L 07/20/10 1 15 J ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.19 -- 1 ND ND ug/L 07/27/17 0.19 -- 1 ND ND ug/L 02/20/18 0.19 -- 1 ND ND ug/L 08/08/18 0.19 1.0 -- ND ND ug/L 01/16/19 0.19 1.0 1.2 ND ug/L 08/15/19 0.19 1.0 1.8 ND ug/L 01/16/20 0.19 1.0 ND ND ug/L 08/12/20 0.19 1.0 1.7 ND ug/L 01/26/21 1.9 10 ND ND ug/L 08/25/21 1.9 10 ND ND ug/L 02/10/22 0.19 1.0 6.3 ND ug/L 08/15/22 1.9 10 ND ND %%til) GOLDER Page 9 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks 1,1-Dichloroethane ug/L 09/27/06 -- 5 ND ND ug/L 01/31/07 5 ND ND ug/L 07/12/07 -- 5 5.2 ND ug/L 01/17/08 5 ND ND ug/L 07/30/08 5 ND ND ug/L 01/22/09 5 11 ND ug/L 07/14/09 -- 5 6.8 ND ug/L 01/07/10 -- 5 9.4 ND ug/L 07/20/10 5 ND ND ug/L 01/31/11 5 ND ND ug/L 07/18/11 5 ND ND ug/L 01/25/12 5 ND ND ug/L 07/18/12 5 ND ND ug/L 01/23/13 5 ND ND ug/L 07/17/13 5 ND ND ug/L 01/27/14 5 ND ND ug/L 07/16/14 5 ND ND ug/L 01/20/15 5 ND ND ug/L 07/23/15 5 ND ND ug/L 01/12/16 5 ND ND ug/L 08/01/16 -- 5 ND ND ug/L 01/19/17 0.13 -- 5 ND ND ug/L 07/27/17 0.13 -- 5 ND ND ug/L 02/20/18 0.13 -- 5 ND ND ug/L 08/08/18 0.13 1.0 -- ND ND ug/L 01/16/19 0.13 1.0 ND ND ug/L 08/15/19 0.13 1.0 ND ND ug/L 01/16/20 0.13 1.0 ND ND ug/L 08/12/20 0.13 1.0 ND ND ug/L 01/26/21 1.3 10 ND ND ug/L 08/25/21 1.3 10 - ND ND ug/L 02/10/22 0.13 1.0 ND ND ug/L 08/15/22 1.3 10 -- ND ND 1,2-Dichloroethane ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 3 ND ND ug/L 07/12/07 1 ND ND ug/L 01/17/08 1 ND ND ug/L 07/30/08 1 ND ND ug/L 01/22/09 1 24 ND ug/L 07/14/09 -- 1 9.5 ND ug/L 01/07/10 1 10 ND ug/L 07/20/10 1 ND ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.21 -- 1 ND ND ug/L 07/27/17 0.21 -- 1 ND ND ug/L 02/20/18 0.21 -- 1 ND ND ug/L 08/08/18 0.21 1.0 -- ND ND ug/L 01/16/19 0.21 1.0 -- 0.53 J ND ug/L 08/15/19 0.21 1.0 -- 0.81 J ND ug/L 01/16/20 0.21 1.0 -- ND ND ug/L 08/12/20 0.21 1.0 -- 0.80 J ND ug/L 01/26/21 2.1 10 -- ND ND ug/L 08/25/21 2.1 10 - ND ND ug/L 02/10/22 0.21 1.0 -- ND ND ug/L 08/15/22 2.1 10 -- ND ND %%til) GOLDER Page 10 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks cis-1,2-Dichloroethene ug/L 09/27/06 -- 5 ND ND ug/L 01/31/07 5 ND ND ug/L 07/12/07 5 3.8 J ND ug/L 01/17/08 -- 5 5 ND ug/L 07/30/08 5 4.1 J ND ug/L 01/22/09 5 13 ND ug/L 07/14/09 -- 5 8.2 ND ug/L 01/07/10 -- 5 8.4 ND ug/L 07/20/10 -- 5 12 J ND ug/L 01/31/11 5 ND ND ug/L 07/18/11 5 ND ND ug/L 01/25/12 5 ND ND ug/L 07/18/12 5 ND ND ug/L 01/23/13 5 ND ND ug/L 07/17/13 5 ND ND ug/L 01/27/14 5 ND ND ug/L 07/16/14 5 ND ND ug/L 01/20/15 5 ND ND ug/L 07/23/15 5 ND ND ug/L 01/12/16 5 ND ND ug/L 08/01/16 -- 5 ND ND ug/L 01/19/17 0.15 -- 5 ND ND ug/L 07/27/17 0.15 -- 5 ND ND ug/L 02/20/18 0.15 -- 5 ND ND ug/L 08/08/18 0.15 1.0 -- ND ND ug/L 01/16/19 0.15 1.0 ND ND ug/L 08/15/19 0.15 1.0 ND ND ug/L 01/16/20 0.15 1.0 ND ND ug/L 08/12/20 0.15 1.0 ND ND ug/L 01/26/21 1.5 10 ND ND ug/L 08/25/21 1.5 10 - ND ND ug/L 02/10/22 0.15 1.0 ND ND ug/L 08/15/22 1.5 10 -- ND ND Ethylbenzene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 5 ND ND ug/L 07/12/07 1 36 ND ug/L 01/17/08 1 24 ND ug/L 07/30/08 1 48 ND ug/L 01/22/09 1 72 ND ug/L 07/14/09 1 73 ND ug/L 01/07/10 1 85 ND ug/L 07/20/10 1 75 ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.13 -- 1 ND ND ug/L 07/27/17 0.13 -- 1 68 ND ug/L 02/20/18 0.13 -- 1 ND ND ug/L 08/08/18 0.13 1.0 -- ND ND ug/L 01/16/19 0.13 1.0 -- 1.2 ND ug/L 08/15/19 0.13 1.0 -- ND ND ug/L 01/16/20 0.13 1.0 -- ND ND ug/L 08/12/20 0.13 1.0 -- ND ND ug/L 01/26/21 1.3 10 -- ND ND ug/L 08/25/21 1.3 10 - ND ND ug/L 02/10/22 0.13 1.0 -- 27 ND ug/L 08/15/22 1.3 10 -- ND ND %%til) GOLDER Page 11 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks 2-Hexanone ug/L 09/27/06 -- 50 ND ND ug/L 01/31/07 -- 50 ND ND ug/L 07/12/07 -- 50 ND ND ug/L 01/17/08 -- 50 ND ND ug/L 07/30/08 -- 50 ND ND ug/L 01/22/09 -- 50 ND ND ug/L 07/14/09 -- 50 ND ND ug/L 01/07/10 -- 50 ND ND ug/L 07/20/10 -- 50 ND ND ug/L 01/31/11 -- 50 ND ND ug/L 07/18/11 -- 50 ND ND ug/L 01/25/12 -- 50 ND ND ug/L 07/18/12 -- 50 ND ND ug/L 01/23/13 -- 50 ND ND ug/L 07/17/13 50 ND ND ug/L 01/27/14 50 ND ND ug/L 07/16/14 50 ND ND ug/L 01/20/15 -- 50 ND ND ug/L 07/23/15 0.88 50 ND ND ug/L 01/12/16 -- 50 ND ND ug/L 08/01/16 -- 50 ND ND ug/L 01/19/17 0.88 50 ND ND ug/L 07/27/17 -- 50 ND ND ug/L 02/20/18 4.4 -- 50 ND ND ug/L 08/08/18 0.88 5.0 -- ND ND ug/L 01/16/19 -- -- ND ND ug/L 08/15/19 0.88 5.0 ND ND ug/L 01/16/20 -- -- ND ND ug/L 08/12/20 0.88 5.0 ND ND ug/L 01/26/21 8.8 50 ND ND ug/L 08/25/21 8.8 50 - ND ND ug/L 02/10/22 0.88 5.0 22 ND ug/L 08/15/22 8.8 50 -- ND ND Bromomethane ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 -- 10 ND ND ug/L 07/12/07 -- 10 ND ND ug/L 01/17/08 -- 10 ND ND ug/L 07/30/08 -- 10 ND ND ug/L 01/22/09 -- 10 ND ND ug/L 07/14/09 -- 10 ND ND ug/L 01/07/10 -- 10 ND ND ug/L 07/20/10 10 ND ND ug/L 01/31/11 -- 10 ND ND ug/L 07/18/11 -- 10 ND ND ug/L 01/25/12 10 5.6 J ND ug/L 07/18/12 10 ND ND ug/L 01/23/13 -- 10 ND ND ug/L 07/17/13 -- 10 ND ND ug/L 01/27/14 -- 10 ND ND ug/L 07/16/14 -- 10 ND ND ug/L 01/20/15 -- 10 ND ND ug/L 07/23/15 -- 10 ND ND ug/L 01/12/16 -- 10 ND ND ug/L 08/01/16 -- -- 10 ND ND ug/L 01/19/17 0.14 -- 10 ND ND ug/L 07/27/17 0.14 -- 10 ND ND ug/L 02/20/18 0.14 -- 10 ND ND ug/L 08/08/18 0.14 1.0 -- ND ND ug/L 01/16/19 0.14 1.0 ND ND ug/L 08/15/19 0.14 1.0 ND ND ug/L 01/16/20 0.14 1.0 ND ND ug/L 08/12/20 0.14 1.0 ND ND ug/L 01/26/21 1.4 10 ND ND ug/L 08/25/21 1.4 10 - ND ND ug/L 02/10/22 0.14 1.0 ND ND ug/L 08/15/22 1.4 10 ND ND %%til) GOLDER Page 12 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Chloromethane ug/L 09/27/06 -- 10 ND ND ug/L 01/31/07 -- 5.5 1.4 ND ug/L 07/12/07 1 ND ND ug/L 01/17/08 1 ND ND ug/L 07/30/08 1 ND ND ug/L 01/22/09 1 ND ND ug/L 07/14/09 1 ND ND ug/L 01/07/10 1 ND ND ug/L 07/20/10 1 ND ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.13 1 ND ND ug/L 07/27/17 0.13 -- 1 ND ND ug/L 02/20/18 0.13 -- 1 ND ND ug/L 08/08/18 0.13 1.0 -- ND ND ug/L 01/16/19 0.13 1.0 ND ND ug/L 08/15/19 0.13 1.0 ND ND ug/L 01/16/20 0.13 1.0 ND ND ug/L 08/12/20 0.13 1.0 ND ND ug/L 01/26/21 1.3 10 ND ND ug/L 08/25/21 1.3 10 - ND ND ug/L 02/10/22 0.13 1.0 ND ND ug/L 08/15/22 1.3 10 -- ND ND Methylene chloride ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 5.5 ND 0.34 ug/L 07/12/07 1 44 ND ug/L 01/17/08 1 16 ND ug/L 07/30/08 1 32 ND ug/L 01/22/09 -- 1 130 ND ug/L 07/14/09 1 16 ND ug/L 01/07/10 1 30 ND ug/L 07/20/10 1 25 ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.23 -- 1 ND ND ug/L 07/27/17 0.23 -- 1 ND ND ug/L 02/20/18 0.23 -- 1 ND ND ug/L 08/08/18 0.23 1.0 -- ND 0.47 ug/L 01/16/19 0.23 1.0 ND ND ug/L 08/15/19 0.23 1.0 ND ND ug/L 01/16/20 0.23 1.0 ND 0.68 ug/L 08/12/20 0.23 1.0 ND ND ug/L 01/26/21 2.3 10 ND ND ug/L 08/25/21 2.3 10 - ND ND ug/L 02/10/22 0.23 1.0 ND ND ug/L 08/15/22 2.3 10 ND 0.95 J %%til) GOLDER Page 13 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks 2-Butanone ug/L 09/27/06 -- 100 ND ND ug/L 01/31/07 -- 100 ND ND ug/L 07/12/07 -- 100 1900 ND ug/L 01/17/08 -- 100 810 ND ug/L 07/30/08 -- 100 1100 ND ug/L 01/22/09 -- 100 2400 ND ug/L 07/14/09 100 1800 ND ug/L 01/07/10 -- 100 1700 ND ug/L 07/20/10 -- 100 2900 ND ug/L 01/31/11 -- 100 ND ND ug/L 07/18/11 -- 100 ND ND ug/L 01/25/12 -- 100 ND ND ug/L 07/18/12 -- 100 ND ND ug/L 01/23/13 -- 100 ND ND ug/L 07/17/13 -- 100 ND ND ug/L 01/27/14 100 24 J ND ug/L 07/16/14 -- 100 ND ND ug/L 01/20/15 -- 100 790 ND ug/L 07/23/15 -- 100 ND ND ug/L 01/12/16 100 ND ND ug/L 08/01/16 -- 100 ND ND ug/L 01/19/17 1.3 - 100 150 ND ug/L 07/27/17 1.3 -- 100 5100 ND ug/L 02/20/18 1.3 -- 100 600 ND ug/L 08/08/18 1.3 5.0 -- ND ND ug/L 01/16/19 1.3 5.0 71 ND ug/L 08/15/19 1.3 5.0 ND ND ug/L 01/16/20 1.3 5.0 ND ND ug/L 08/12/20 1.3 5.0 3.4 J ND ug/L 01/26/21 13 50 ND ND ug/L 08/25/21 13 50 ND ND ug/L 02/10/22 65 250 1700 ND ug/L 08/15/22 13 50 -- ND ND lodomethane ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 10 3.1 ND ug/L 07/12/07 -- 10 ND ND ug/L 01/17/08 -- 10 ND ND ug/L 07/30/08 -- 10 ND ND ug/L 01/22/09 -- 10 ND ND ug/L 07/14/09 -- 10 ND ND ug/L 01/07/10 10 ND ND ug/L 07/20/10 10 ND ND ug/L 01/31/11 -- 10 ND ND ug/L 07/18/11 -- 10 ND ND ug/L 01/25/12 10 ND ND ug/L 07/18/12 10 ND ND ug/L 01/23/13 -- 10 ND ND ug/L 07/17/13 -- 10 ND ND ug/L 01/27/14 10 ND ND ug/L 07/16/14 10 ND ND ug/L 01/20/15 10 ND ND ug/L 07/23/15 10 ND ND ug/L 01/12/16 10 ND ND ug/L 08/01/16 -- 10 ND ND ug/L 01/19/17 1.7 10 ND ND ug/L 07/27/17 1.7 10 ND ND ug/L 02/20/18 1.7 -- 10 ND ND ug/L 08/08/18 1.7 5.0 -- ND ND ug/L 01/16/19 1.7 5.0 ND ND ug/L 08/15/19 1.7 5.0 ND ND ug/L 01/16/20 1.7 5.0 ND ND ug/L 08/12/20 1.7 5.0 ND ND ug/L 01/26/21 17 50 ND ND ug/L 08/25/21 17 50 ND ND ug/L 02/10/22 1.7 5.0 ND ND ug/L 08/15/22 17 50 ND ND %%til) GOLDER Page 14 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks 4-Methyl-2-pentanone ug/L 09/27/06 100 ND ND ug/L 01/31/07 -- 100 ND ND ug/L 07/12/07 100 31 J ND ug/L 01/17/08 100 29 J ND ug/L 07/30/08 100 65 J ND ug/L 01 /22/09 -- 100 180 ND ug/L 07/14/09 -- 100 140 ND ug/L 01/07/10 100 70 J ND ug/L 07/20/10 -- 100 120 ND ug/L 01/31/11 -- 100 ND ND ug/L 07/18/11 -- 100 ND ND ug/L 01/25/12 -- 100 ND ND ug/L 07/18/12 -- 100 ND ND ug/L 01/23/13 -- 100 ND ND ug/L 07/17/13 -- 100 ND ND ug/L 01/27/14 100 1.5 J ND ug/L 07/16/14 -- 100 ND ND ug/L 01/20/15 -- 100 ND ND ug/L 07/23/15 -- 100 ND ND ug/L 01/12/16 100 ND ND ug/L 08/01/16 -- 100 ND ND ug/L 01/19/17 1.1 -- 100 4.1 J ND ug/L 07/27/17 1.1 100 88 J ND ug/L 02/20/18 1.1 -- 100 5.8 J ND ug/L 08/08/18 1.1 5.0 -- ND ND ug/L 01/16/19 1.1 5.0 7.8 ND ug/L 08/15/19 1.1 5.0 5.3 ND ug/L 01/16/20 1.1 5.0 ND ND ug/L 08/12/20 1.1 5.0 1.6 J ND ug/L 01/26/21 11 50 ND ND ug/L 08/25/21 11 50 ND ND ug/L 02/10/22 1.1 5.0 200 ND ug/L 08/15/22 11 50 -- ND ND Styrene ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 -- 10 ND ND ug/L 07/12/07 -- 1 7.1 ND ug/L 01/17/08 1 ND ND ug/L 07/30/08 1 11 ND ug/L 01/22/09 1 45 ND ug/L 07/14/09 1 21 ND ug/L 01/07/10 1 16 ND ug/L 07/20/10 1 24 ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.11 -- 1 ND ND ug/L 07/27/17 0.11 -- 1 8.2 J ND ug/L 02/20/18 0.11 -- 1 ND ND ug/L 08/08/18 0.11 1.0 -- ND ND ug/L 01/16/19 0.11 1.0 -- ND ND ug/L 08/15/19 0.11 1.0 -- ND ND ug/L 01/16/20 0.11 1.0 -- ND ND ug/L 08/12/20 0.11 1.0 -- 0.67 J ND ug/L 01/26/21 1.1 10 -- ND ND ug/L 08/25/21 1.1 10 -- ND ND ug/L 02/10/22 0.11 1.0 -- 11 ND ug/L 08/15/22 1.1 10 -- ND ND %%til) GOLDER Page 15 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Tetrachloroethene ug/L 09/27/06 -- 5 ND ND ug/L 01/31/07 3 ND ND ug/L 07/12/07 1 ND ND ug/L 01/17/08 1 ND ND ug/L 07/30/08 1 ND ND ug/L 01/22/09 1 8.1 J ND ug/L 07/14/09 1 2.7 J ND ug/L 01/07/10 1 2 J ND ug/L 07/20/10 1 ND ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.17 -- 1 ND ND ug/L 07/27/17 0.17 -- 1 ND ND ug/L 02/20/18 0.85 -- 1 ND ND ug/L 08/08/18 0.17 1.0 -- ND ND ug/L 01/16/19 0.17 1.0 ND ND ug/L 08/15/19 0.17 1.0 ND ND ug/L 01/16/20 0.17 1.0 ND ND ug/L 08/12/20 0.17 1.0 ND ND ug/L 01/26/21 1.7 10 ND ND ug/L 08/25/21 1.7 10 - ND ND ug/L 02/10/22 0.17 1.0 ND ND ug/L 08/15/22 1.7 10 -- ND ND Toluene ug/L 09/27/06 -- -- 5 ND ND ug/L 01/31/07 5 ND ND ug/L 07/12/07 1 130 0.48 ug/L 01/17/08 -- 1 100 ND ug/L 07/30/08 -- 1 190 ND ug/L 01/22/09 -- 1 520 ND ug/L 07/14/09 -- 1 280 ND ug/L 01/07/10 1 270 ND ug/L 07/20/10 1 300 ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.14 1 ND ND ug/L 07/27/17 0.14 1 360 ND ug/L 02/20/18 0.70 -- 1 ND ND ug/L 08/08/18 0.14 1.0 -- ND ND ug/L 01/16/19 0.14 1.0 0.96 J ND ug/L 08/15/19 0.14 1.0 ND ND ug/L 01/16/20 0.14 1.0 ND ND ug/L 08/12/20 0.14 1.0 ND ND ug/L 01/26/21 1.4 10 ND ND ug/L 08/25/21 1.4 10 - ND ND ug/L 02/10/22 0.14 1.0 39 ND ug/L 08/15/22 1.4 10 ND ND %%til) GOLDER Page 16 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Trichloroethene ug/L 09/27/06 -- 5 ND ND ug/L 01/31/07 3 ND ND ug/L 07/12/07 1 ND ND ug/L 01/17/08 1 ND ND ug/L 07/30/08 1 ND ND ug/L 01/22/09 1 8.3 J ND ug/L 07/14/09 -- 1 2 ND ug/L 01/07/10 1 ND ND ug/L 07/20/10 1 ND ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.15 -- 1 ND ND ug/L 07/27/17 0.15 -- 1 ND ND ug/L 02/20/18 0.15 -- 1 ND ND ug/L 08/08/18 0.15 1.0 -- ND ND ug/L 01/16/19 0.15 1.0 ND ND ug/L 08/15/19 0.15 1.0 ND ND ug/L 01/16/20 0.15 1.0 ND ND ug/L 08/12/20 0.15 1.0 ND ND ug/L 01/26/21 1.5 10 ND ND ug/L 08/25/21 1.5 10 - ND ND ug/L 02/10/22 0.15 1.0 ND ND ug/L 08/15/22 1.5 10 -- ND ND Vinyl chloride ug/L 09/27/06 -- -- 10 ND ND ug/L 01/31/07 5.5 ND ND ug/L 07/12/07 1 ND ND ug/L 01/17/08 1 ND ND ug/L 07/30/08 1 ND ND ug/L 01/22/09 1 5.8 J ND ug/L 07/14/09 -- 1 5.4 ND ug/L 01/07/10 1 6.7 ND ug/L 07/20/10 1 ND ND ug/L 01/31/11 1 ND ND ug/L 07/18/11 1 ND ND ug/L 01/25/12 1 ND ND ug/L 07/18/12 1 ND ND ug/L 01/23/13 1 ND ND ug/L 07/17/13 1 ND ND ug/L 01/27/14 1 ND ND ug/L 07/16/14 1 ND ND ug/L 01/20/15 1 ND ND ug/L 07/23/15 1 ND ND ug/L 01/12/16 1 ND ND ug/L 08/01/16 -- 1 ND ND ug/L 01/19/17 0.32 -- 1 ND ND ug/L 07/27/17 0.32 -- 1 ND ND ug/L 02/20/18 0.32 -- 1 ND ND ug/L 08/08/18 0.32 1.0 -- ND ND ug/L 01/16/19 0.32 1.0 -- ND ND ug/L 08/15/19 0.32 1.0 -- ND ND ug/L 01/16/20 0.32 1.0 -- ND ND ug/L 08/12/20 0.32 1.0 -- ND ND ug/L 01/26/21 3.2 10 -- ND ND ug/L 08/25/21 3.2 10 - ND ND ug/L 02/10/22 0.32 1.0 -- ND ND ug/L 08/15/22 3.2 10 -- ND ND %%til) GOLDER Page 17 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Xylenes (total) ug/L 09/27/06 -- 5 ND ND ug/L 01/31/07 4 ND ND ug/L 07/12/07 4 93 ND ug/L 01/17/08 5 69 ND ug/L 07/30/08 -- 5 100 ND ug/L 01/22/09 -- 5 210 ND ug/L 07/14/09 -- 5 180 ND ug/L 01/07/10 -- 5 220 ND ug/L 07/20/10 -- 5 170 ND ug/L 01/31/11 5 ND ND ug/L 07/18/11 5 ND ND ug/L 01/25/12 5 ND ND ug/L 07/18/12 5 ND ND ug/L 01/23/13 5 ND ND ug/L 07/17/13 5 ND ND ug/L 01/27/14 5 ND ND ug/L 07/16/14 5 ND ND ug/L 01/20/15 5 8.6 J ND ug/L 07/23/15 5 ND ND ug/L 01/12/16 5 ND ND ug/L 08/01/16 -- 5 ND ND ug/L 01/19/17 0.45 -- 5 ND ND ug/L 07/27/17 0.45 -- 5 74 ND ug/L 02/20/18 0.45 -- 5 ND ND ug/L 08/08/18 0.45 3.0 -- ND ND ug/L 01/16/19 0.45 3.0 5.4 ND ug/L 08/15/19 0.45 3.0 0.87 J ND ug/L 01/16/20 0.45 3.0 ND ND ug/L 08/12/20 0.45 3.0 1.6 J ND ug/L 01/26/21 4.5 30 ND ND ug/L 08/25/21 4.5 30 - ND ND ug/L 02/10/22 0.45 3.0 53 ND ug/L 08/15/22 4.5 30 ND ND 1,4-Dioxane ug/L 01/16/20 4.0 10.0 120 ND ug/L 01/26/21 8.0 20 280 ND ug/L 08/25/21 16 40 480 ND ug/L 02/10/22 40 100 1200 %%til) GOLDER Page 18 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Nitrate mg/L 09/27/06 32.1 ND mg/L 01/31/07 18.2 ND mg/L 07/12/07 -- -- 0.013 ND mg/L 01/17/08 10 4.1 J 0.006 mg/L 07/30/08 -- 10 ND ND mg/L 01/22/09 -- 10 ND ND mg/L 07/14/09 10 0.033 J ND mg/L 01/07/10 10 0.072 J ND mg/L 07/20/10 10 0.099 J ND mg/L 01/31/11 -- 10 6 J ND mg/L 07/18/11 -- 10 ND ND mg/L 01/25/12 -- 10 2 J ND mg/L 07/18/12 10 2.6 J ND mg/L 01/23/13 10 21 ND mg/L 07/17/13 10 ND ND mg/L 01/27/14 10 7 J ND mg/L 07/16/14 -- 10 0.1 J ND mg/L 01/20/15 10 0.17 J ND mg/L 07/23/15 -- 10 ND ND mg/L 01/12/16 10 0.2 J ND mg/L 08/01/16 -- 10 ND ND mg/L 01/19/17 0.025 10 0.71 J ND mg/L 07/27/17 0.025 10 0.11 J ND mg/L 02/20/18 0.025 -- 10 0.065 J ND mg/L 08/08/18 0.025 0.1 -- ND ND mg/L 01/16/19 0.025 0.1 0.056 J ND mg/L 08/15/19 0.025 0.1 ND ND mg/L 01/16/20 0.025 0.1 0.074 J ND mg/L 08/12/20 0.041 0.1 ND ND mg/L 01/26/21 0.041 0.1 0.061 J ND mg/L 08/25/21 0.041 0.1 - ND ND mg/L 02/10/22 0.041 0.1 ND mg/L 08/15/22 0.000041 0.0001 0.000091 J ND Sulfate mg/L 09/27/06 -- -- 33 ND mg/L 01/31/07 -- 7.8 ND mg/L 07/12/07 250 14 J ND mg/L 01/17/08 250 90 J ND mg/L 07/30/08 250 2.7 J ND mg/L 01/22/09 -- 250 ND ND mg/L 07/14/09 -- 250 2.4 J ND mg/L 01/07/10 250 1.7 J ND mg/L 07/20/10 -- 250 3.8 J ND mg/L 01/31/11 250 11 J ND mg/L 07/18/11 250 10 J ND mg/L 01/25/12 250 6.6 J ND mg/L 07/18/12 -- 250 8.8 J ND mg/L 01/23/13 -- 250 8.6 J ND mg/L 07/17/13 250 18 J 1.5 mg/L 01/27/14 250 25 J ND mg/L 07/16/14 250 22 J ND mg/L 01/20/15 250 14 J ND mg/L 07/23/15 250 28 J ND mg/L 01/12/16 250 12 J ND mg/L 08/01/16 -- -- 250 9.4 J ND mg/L 01/19/17 2.9 250 20 J ND mg/L 07/27/17 2.9 250 32 J ND mg/L 02/20/18 2.9 -- 250 65 J ND mg/L 08/08/18 2.9 5 -- 38 ND mg/L 01/16/19 2.9 5 9.2 ND mg/L 08/15/19 2.9 5 22 ND mg/L 01/16/20 2.9 5 52 ND mg/L 08/12/20 2.9 5 20 ND mg/L 01 /26/21 2.9 5 4.1 J ND mg/L 08/25/21 2.9 5 - 7.1 ND mg/L 02/10/22 2.9 5 16 mg/L 08/15/22 2.9 5 14 ND %%til) GOLDER Page 19 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Biochemical Oxygen Demand mg/L 09/27/06 -- 36 ND mg/L 01/31/07 -- 41 ND mg/L 07/12/07 -- 980 ND mg/L 01/17/08 -- 600 ND mg/L 07/30/08 -- 130 ND mg/L 01/22/09 -- 150 ND mg/L 07/14/09 -- 100 ND mg/L 01/07/10 -- 250 ND mg/L 07/20/10 -- 430 ND mg/L 01/31/11 9 ND mg/L 07/18/11 -- 14 ND mg/L 01/25/12 -- 13 ND mg/L 07/18/12 -- 15 ND mg/L 01/23/13 14 ND mg/L 07/17/13 16 ND mg/L 01/27/14 21 ND mg/L 07/16/14 17 ND mg/L 01/20/15 100 ND mg/L 07/23/15 10 ND mg/L 01/12/16 42 ND mg/L 08/01/16 -- 11 ND mg/L 01/19/17 2 20 ND mg/L 07/27/17 2 >2 ND mg/L 02/20/18 2 -- 25 ND mg/L 08/08/18 2 2 17 ND mg/L 01/16/19 2 2 36 ND mg/L 08/15/19 2 2 43 ND mg/L 01/16/20 2 2 27 ND mg/L 08/12/20 2 2 44 ND mg/L 01 /26/21 2 2 36 ND mg/L 08/25/21 2 2 54 ND mg/L 02/10/22 2 2 120 mg/L 08/15/22 2 2 62 ND Chemical Oxygen Demand mg/L 09/27/06 -- -- 225 ND mg/L 01/31/07 75 ND mg/L 07/12/07 1600 ND mg/L 01/17/08 960 ND mg/L 07/30/08 480 ND mg/L 01 /22/09 550 ND mg/L 07/14/09 560 ND mg/L 01/07/10 810 3.9 mg/L 07/20/10 990 ND mg/L 01/31/11 180 ND mg/L 07/18/11 200 ND mg/L 01/25/12 -- 180 ND mg/L 07/18/12 -- 210 ND mg/L 01/23/13 -- 180 ND mg/L 07/17/13 -- 200 ND mg/L 01/27/14 -- 290 ND mg/L 07/16/14 -- 210 ND mg/L 01/20/15 -- 760 ND mg/L 07/23/15 -- 300 ND mg/L 01/12/16 -- 220 ND mg/L 08/01/16 -- -- 130 ND mg/L 01/19/17 10 -- 120 ND mg/L 07/27/17 10 -- 3100 ND mg/L 02/20/18 10 -- 500 ND mg/L 08/08/18 10 10 190 ND mg/L 01/16/19 10 10 380 ND mg/L 08/15/19 10 10 560 ND mg/L 01/16/20 10 10 310 ND mg/L 08/12/20 20 20 580 ND mg/L 01/26/21 10 10 450 ND mg/L 08/25/21 10 10 - 680 ND mg/L 02/10/22 10 10 590 mg/L 08/15/22 10 10 710 ND %%til) GOLDER Page 20 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Phosphorus mg/L 09/27/06 -- 0.09 ND mg/L 01/31/07 0.044 ND mg/L 07/12/07 0.39 ND mg/L 01/17/08 0.5 ND mg/L 07/30/08 0.53 ND mg/L 01/22/09 0.23 ND mg/L 07/14/09 0.72 ND mg/L 01/07/10 0.54 ND mg/L 07/20/10 1.3 ND mg/L 01/31/11 0.13 ND mg/L 07/18/11 0.17 ND mg/L 01/25/12 0.15 ND mg/L 07/18/12 0.17 ND mg/L 01/23/13 0.16 ND mg/L 07/17/13 0.24 ND mg/L 01/27/14 0.27 ND mg/L 07/16/14 0.22 ND mg/L 01/20/15 0.86 ND mg/L 07/23/15 0.15 ND mg/L 01/12/16 0.41 ND mg/L 08/01/16 -- 0.21 ND mg/L 01/19/17 0.025 0.095 J ND mg/L 07/27/17 0.025 -- 1.4 ND mg/L 02/20/18 0.025 -- 1.0 ND mg/L 08/08/18 0.025 0.1 0.13 ND mg/L 01/16/19 0.025 0.1 0.25 ND mg/L 08/15/19 0.025 0.1 0.29 ND mg/L 01/16/20 0.025 0.1 0.20 ND mg/L 08/12/20 0.025 0.1 0.31 ND mg/L 01/26/21 0.025 0.1 0.40 ND mg/L 08/25/21 0.025 0.1 - 0.41 ND mg/L 02/10/22 0.025 0.1 0.26 mg/L 08/15/22 0.025 0.1 0.54 ND pH (field) S.U. 09/27/06 -- -- 7.7 S.U. 01/31/07 7.7 S.U. 07/12/07 6.54 S.U. 01/17/08 6.55 S.U. 07/30/08 6.58 S.U. 01 /22/09 8.23 S.U. 07/14/09 8.33 S.U. 01 /07/10 7.09 S.U. 07/20/10 6.9 S.U. 01/31/11 8.3 S.U. 07/18/11 8.53 S.U. 01 /25/12 7.96 S.U. 07/18/12 6.16 S.U. 01 /22/13 8.32 S.U. 07/17/13 8.26 S.U. 01 /28/14 8.75 S.U. 07/16/14 8.82 S.U. 01/20/15 7.9 S.U. 07/23/15 8.55 S.U. 01/12/16 9.1 S.U. 08/01 /16 7.88 S.U. 01/19/17 7.39 S.U. 07/27/17 6.29 S.U. 02/20/18 8.34 S.U. 08/08/18 8.27 S.U. 01/16/19 7.93 S.U. 08/15/19 8.77 S.U. 01/16/20 7.55 S.U. 08/10/20 8.75 S.U. 01/26/21 8.99 S.U. 08/25/21 8.94 S.U. 02/10/22 9.22 S.U. 08/15/22 7.51 %%til) GOLDER Page 21 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Specific Conductance (field) PS/cm 09/27/06 -- 2170 PS/cm 01/31/07 3000 PS/cm 07/12/07 4220 PS/cm 01/17/08 1890 PS/cm 07/30/08 4130 PS/Cm 01/22/09 2105 PS/cm 07/14/09 1751 PS/Cm 01/07/10 3294 PS/cm 07/20/10 5706 PS/Cm 01/31/11 2112 PS/cm 07/18/11 1980 PS/Cm 01/25/12 2158 PS/cm 07/18/12 1911 PS/Cm 01/22/13 2650 PS/cm 07/17/13 2180 PS/Cm 01/28/14 3142 PS/cm 07/16/14 2345 PS/Cm 01/20/15 5480 PS/cm 07/23/15 2840 PS/Cm 01/12/16 1799 PS/cm 08/01/16 1280 PS/Cm 01/19/17 1260 PS/cm 07/27/17 3445 PS/Cm 02/20/18 1846 PS/cm 08/08/18 2186 PS/Cm 01/16/19 4610 PS/cm 08/15/19 2747 PS/Cm 01/16/20 2384 PS/cm 08/10/20 2958 PS/Cm 01/26/21 3033 PS/cm 08/25/21 3087 PS/Cm 02/10/22 3152 PS/cm 08/15/22 7369 %%til) GOLDER Page 22 of 22 November 2022 Table 8 Project No. GL21456818 Summary of Detected Leachate Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit No. 80-03 Detected Monitoring Con stituents/Analytes Units Sample Date MDL MRL SWS Reporting Limit Leachate Blanks Temperature (field) °C 09/27/06 -- 22.2 °C 01/31/07 9.5 °C 07/12/07 23.39 °C 01/17/08 7.88 °C 07/30/08 22.84 °C 01/22/09 0.78 °C 07/14/09 25 °C 01/07/10 8.29 °C 07/20/10 21.53 °C 01/31/11 4.05 °C 07/18/11 27.79 °C 01/25/12 14.3 °C 07/18/12 29.51 °C 01/22/13 5.6 °C 07/17/13 28.25 °C 01/28/14 0.4 °C 07/16/14 26.9 °C 01/20/15 14.9 °C 07/23/15 26.8 °C 01/12/16 3 °C 08/01/16 25.7 °C 01/19/17 10.7 °C 07/27/17 27.8 °C 02/20/18 15.02 °C 08/08/18 27.6 °C 01/16/19 16.3 °C 08/15/19 26.7 °C 01/16/20 19.0 °C 08/10/20 28.1 °C 01/26/21 13.7 °C 08/25/21 23.7 °C 02/10/22 12.1 °C 08/15/22 25.6 Notes: mg/L = milligrams per liter ug/L = micrograms per liter my = millivolts S.U. = Standard Units ND = Not detected at the stated reporting limit pS/cm = microsiemens per centimeter -- = no data B = blank -qualified result J = August 2018 event, J flags are estimated values between MDL and MRL. Blanks = field, trip and method blanks SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/31/07 MDL = Laboratory method detection limit MRL = Laboratory method reporting limit 1) L2 is no longer sampled as representative samples cannot be collected from the pipe. 2) The following dilutions were noted for the August 2022 event: antimony (10x), Acetone & 2-Butanone (50x) and 1,4- Dioxane (50x). %%til) GOLDER Page 23 of 22 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 Antimony ug/L 11/04/05 -- - -- ND NO - - ND - - -- NC 2L = 1 ug/L ug/L 12/12/05 -- - -- NO ND - - ND - - -- EPA MCL = 6 ug/L ug/L 12/13/05 -- - -- NO ND - - ND - - -- ug/L 12/22/05 -- - -- NO ND - - ND - - -- ug/L 12/30/05 -- - 30 NO ND - - ND - - ND ug/L 09/26/06 -- - 30 - - - - - - - ND ug/L 01/31/07 -- - 6 NO ND - - ND - - ND ug/L 07/12/07 -- - 6 ND ND - - ND - - ND ug/L O8106/07 -- - 6 - - NO - - - - ND ug/L 01/17/08 -- - 6 ND - NO - ND - - -- ug/L 07/30/08 -- - 6 ND - NO - ND - - ND ug/L 01/22/09 -- - 6 ND - NO - ND - - ND ug/L 07/14/09 -- - 6 ND - NO - ND - - ND ug/L 01/07/10 -- - 6 ND - NO - ND - - ND ug/L 07/20/10 -- - 6 ND - NO - ND - - ND ug/L 01/31/11 -- - 6 ND - NO - ND - - ND ug/L 07/18/11 -- - 6 ND - NO - ND - - ND ug/L 07/19/12 -- - 6 ND - NO - ND - - ND ug/L 01/30/13 -- - 6 NO - NO - ND - - 0.35 J ug/L 07/15/13 -- - 6 ND - NO - ND - - ND ug/L 01/27/14 -- - 6 0.422 J - 1.31 J -- ND - - ND ug/L 07/14/14 -- - 6 ND - NO - ND - - ND ug/L 01/20/15 0.220 - 6 ND - NO - ND - - -- ug/L 07/23/15 0.220 - 6 0.399 J - ND - ND - - ND ug/L 01/12/16 0.220 - 6 0.478 B - 0.266 B - ND - - 0.577 J ug/L 08/01/16 0.220 - 6 ND - NO - ND - - ND ug/L 01/17/17 0.370 - 6 ND - NO - ND - - ND ug/L 07/26/17 0.370 - 6 ND - NO - ND - - ND ug/L 02/20/18 0.370 - 6 ND - NO - ND - - -- ug/L 08/08/18 1.85 5.00 -- ND - NO - ND - - ND ug/L 01/15/19 1.85 5.00 -- ND - NO - ND - - ND ug/L 08/15/19 0.740 2.00 -- ND - ND - ND - - ND ug/L 01/13/20 0.740 2.00 -- ND - ND - ND - - ND ug/L O8/10/20 0.740 2.00 -- ND - ND - ND - - ND ug/L 01/26/21 0.740 2.00 -- ND - ND - ND - - ND ug/L 08/27/21 0.740 2.00 -- ND - - ND - ND - ND ug/L 02/09/22 0.740 2.00 -- ND - - ND - ND - ND u /L 08/15/22 0.740 2.00 ND ND ND ND Arsenic ug/L 11/04/05 -- - -- ND ND - - ND - - -- NC 2L = 10 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - -- EPA MCL = 10 ug/L ug/L 12/13/05 -- - -- ND ND - - ND - - -- ug/L 12/22/05 -- - -- ND ND - - ND - - -- ug/L 12/30/05 -- - 10 ND ND - - ND - - ND ug/L 09/26/06 -- - 10 ND ND - - ND - - ND ug/L 01/31/07 -- - 10 4.0 B 2.4 B - - ND - - 3.0 J ug/L 07/12/07 -- - 10 ND ND - - ND - - ND ug/L O8/06/07 -- - 10 - - 5.2 J - - - - ND ug/L 01/17/08 -- - 10 ND - ND - ND - - ND ug/L 07/30/08 -- - 10 4.2 B - ND - ND - - 3.2 J ug/L 01/22/09 -- - 10 ND - ND - ND - - ND ug/L 07/14/09 -- - 10 ND - ND - ND - - 3.84 J ug/L 01/07/10 -- - 10 ND - ND - ND - - ND ug/L 07/20/10 -- - 10 ND - ND - ND - - ND ug/L 01/31/11 -- - 10 ND - ND - ND - - 4.78 J ug/L 07/18/11 -- - 10 3.94 J - 3.45 J - 4.56 J - - ND ug/L 01/25/12 -- - 10 ND - ND - ND - - ND ug/L 07/19/12 -- - 10 ND - 3.93 J - 6.09 J - - ND ug/L 01/30/13 -- - 10 ND - ND - ND - - 2.98 J ug/L 07/15/13 -- - 10 ND - ND - ND - - ND ug/L 01/27/14 -- - 10 ND - ND - ND - - ND ug/L 07/14/14 -- - 10 ND - ND - ND - - ND ug/L 01/20/15 5.40 - 10 ND - ND - ND - - ND ug/L 07/23/15 6.80 - 10 ND - ND - ND - - ND ug/L 01/12/16 6.80 - 10 ND - ND - ND - - ND ug/L O8/01/16 6.80 - 10 ND - ND - ND - - ND ug/L 01/17/17 6.80 - 10 ND - ND - ND - - ND ug/L 07/26/17 6.80 - 10 ND - ND - ND - - ND ug/L 02/20/18 6.80 - 10 ND - ND - ND - - ND ug/L 08/08/18 7.60 10.0 -- ND - ND - ND - - ND ug/L 01/15/19 7.60 10.0 -- ND - ND - ND - - ND ug/L 08/15/19 7.60 10.0 -- ND - ND - ND - - ND ug/L 01/13/20 7.60 10.0 -- ND - ND - ND - - ND ug/L 08/10/20 7.60 10.0 -- ND - ND - ND - - ND ug/L 01/26/21 7.60 10.0 -- ND - ND - ND - - ND ug/L 08/27/21 7.60 10.0 -- ND - - ND - ND - ND ug/L 02/09/22 7.60 10.0 -- ND - - ND - ND - ND ug/L 08/15/22 7.60 10.0 ND ND ND ND Barium ug/L 11/04/05 -- - -- ND ND - - ND - - -- NC 2L = 700 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - -- EPA MCL = 2000 ug/L ug/L 12/13/05 -- - -- ND ND - - ND - - -- ug/L 12/22/05 -- - -- ND ND - - ND - - -- ug/L 12/30/05 -- - 500 ND ND - - ND - - ND ug/L 09/26/06 -- - 500 ND ND - - ND - - ND ug/L 01/31/07 -- - 100 9.10 J 66.8 - - 55.5 J - - 0.40 J ug/L 07/12/07 -- - 100 12.8 J 41.9 J - - 55.9 J - - ND ug/L 08/06/07 -- - 100 - -- 65.4 B - - - - 17.4 J ug/L 01/17/08 -- - 100 9.90 J -- 80.2 J - 57.9 J - - ND ug/L 07/30/08 -- - 100 9.40 J - 77.1 J - 65.5 J - - ND ug/L 01/22/09 -- - 100 8.10 J - 71.5 J - 59.2 J - - ND ug/L 07/14/09 -- - 100 14.1 J - 81.8 J - 79.2 J - - ND ug/L 01/07/10 -- - 100 10.2 J - 69.9 J - 157 - - 0.481 J ug/L 07/20/10 -- - 100 9.14 J - 67.0 J - 58.8 J - - ND ug/L 01/31/11 -- - 100 10.4 J - 95.4 J - 62.3 J - - ND ug/L 07/18/11 -- - 100 11.0 J - 92.5 J - 64.4 J - - ND ug/L 01/25/12 -- - 100 11.3 J - 115 - 64.9 J - - ND ug/L 07/19/12 -- - 100 10.7 J - 84.7 J - 58.7 J - - ND ug/L 01/30/13 -- - 100 16.6 J - 160 - 64.4 J - - 1.24 J ug/L 07/15/13 -- - too 14.5 J - 101 - 64.7 J - - 1.75 J ug/L 01/27/14 -- - 100 14.9 J - 87.7 J - 60.4 J - - 1.18 J ug/L 07/14/14 -- - 100 16.5 J - 74.2 J - 60.3 J - - ND ug/L 01/20/15 1.0 - 100 15.7 J - 126 - 66.2 J - - 1.01 J ug/L 07/23/15 1.0 - 100 17.0 J - 90.6 J - 66.3 J - - ND ug/L 01/12/16 1.0 - 100 17.6 J - 120 - 57.1 J - - 1.94 J ug/L 08/01/16 1.0 - 100 14.9 J - 72.6 J - 68.6 J - - ND ug/L 01/17/17 1.0 - 100 17.7 J - 136 - 69.3 J - - ND ug/L 07/26/17 1.0 - 100 18.4 J - 99.7 J - 72.4 J - - 2.03 J ug/L 02/20/18 1.0 - 100 16.9 J - 118 - 64.4 J - - ND ug/L 08/08/18 1.10 10.0 -- 18.0 - 105 - 65.4 - - 3.31 J ug/L 01/15/19 1.10 10.0 -- 21.2 - 150 - 71.8 - - ND ug/L 08/15/19 1.10 10.0 -- 21.3 - 216 - 104 - - ND ug/L 01/13/20 1.10 10.0 -- 22.4 - 214 - 60.8 - - 1.11 J ug/L 08/10/20 1.10 10.0 -- 25.3 - 115 - 160 - - ND ug/L 01/26/21 1.10 10.0 -- 22.3 - 113 - 156 - - ND ug/L 08/27/21 1.10 10.0 -- 22.5 - - 80.3 - 95.0 - ND ug/L 02/09/22 1.10 10.0 -- 20.9 - - 72.6 - 106 - ND u /L 08/15/22 1.10 10.0 19.6 113 102 ND \\til) GOLDER Page 1 of 9 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 Beryllium ug/L 11/04/05 -- - -- ND ND - - 3.7 - - -- NC 2L = 4 ug/L ug/L 12/12/05 -- - -- ND 5.6 - - 2.7 - - -- EPA MCL = 4 ug/L ug/L 12/13/05 -- - -- ND 6.5 - - ND - - -- ug/L 12/22/05 -- - -- ND 2.4 - - 3.7 - - -- ug/L 12/30/05 -- - 2 ND 2.3 - - 3.6 - - ND ug/L 09/26/06 -- - 2 - -- - - - - - ND ug/L 01/31/07 -- - 1 ND 0.70 J - - ND - - ND ug/L 07/12/07 -- - 1 ND ND - - ND - - ND ug/L 08/06/07 -- - 1 - - ND - - - - ND ug/L 01/17/08 -- - 1 ND - ND - ND - - ND ug/L 07/30/08 -- - 1 ND - ND - ND - - ND ug/L 01/22/09 -- - 1 ND - 0.10 J - 0.20 J - - ND ug/L 07/14/09 -- - 1 ND - 0.142 J - 0.280 J - - ND ug/L 01/07/10 -- - 1 ND - 0.115 J - 1.59 - - ND ug/L 07/20/10 -- - 1 ND - ND - 0.302 J - - ND ug/L 01/31/11 -- - 1 ND - 0.103 J - 0.234 J - - ND ug/L 07/18/11 -- - 1 ND - ND - 0.234 J - - ND ug/L 01/25/12 -- - 1 ND - 0.101 J - 0.182 J - - ND ug/L 07/19/12 -- - 1 ND - ND - 0.197 J - - ND ug/L 01/30/13 -- - 1 ND - 0.103 J - 0.162 J - - ND ug/L 07/15/13 -- - 1 ND - ND - 0.226 J - - ND ug/L 01/27/14 -- - 1 ND - ND - 0.144 J - - ND ug/L 07/14/14 -- - 1 ND - ND - 0.209 J - - ND ug/L 01/20/15 0.1 - 1 ND - ND - 0.168 J - - ND ug/L 07/23/15 0.1 - 1 ND - ND - 0.149 J - - ND ug/L 01/12/16 0.1 - 1 ND - ND - 0.143 J - - ND ug/L 08/01/16 0.1 - 1 0.111 J - 0.103 J - 0.247 J - - 0.170 J ug/L 01/17/17 0.1 - 1 ND - ND - ND - - ND ug/L 07/26/17 0.130 - 1 ND - ND - ND - - ND ug/L 02/20/18 0.130 - 1 ND - ND - 0.201 J - - ND ug/L 08/08/18 0.160 1.00 -- ND - ND - 0.186 J - - ND ug/L 01/15/19 0.160 1.00 -- ND - ND -- 0.248 J - - ND ug/L 08/15/19 0.160 1.00 -- ND - ND - ND - - ND ug/L 01/13/20 0.160 1.00 -- ND - ND - ND - - ND ug/L O8/10/20 0.160 1.00 -- ND - ND - ND - - ND ug/L 01/26/21 0.160 1.00 -- ND - ND - ND - - ND ug/L 08/27/21 0.160 1.00 -- ND - - ND - ND - ND ug/L 02/09/22 0.160 1.00 -- ND - - ND - ND - ND u /L 08/15/22 0.160 1.00 ND ND ND ND Cadmium ug/L 11/04/05 -- - -- ND ND - - ND - - -- NC 2L = 2 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - -- EPA MCL = 5 ug/L ug/L 12/13/05 -- - -- ND ND - - ND - - -- ug/L 12/22/05 -- - -- ND ND - - ND - - -- ug/L 12/30/05 -- - 1 ND ND - - ND - - ND ug/L 09/26/06 -- - 1 ND ND - - ND - - ND ug/L 01/31/07 -- - 1 ND ND - - ND - - ND ug/L 07/12/07 -- - 1 ND ND - - ND - - ND ug/L 08/06/07 -- - 1 - - ND - - - - ND ug/L 01/17/08 -- - 1 ND - ND - ND - - ND ug/L 07/30/08 -- - 1 0.40 B - ND - ND - - 0.7 J ug/L 01/22/09 -- - 1 ND - ND - ND - - ND ug/L 07/14/09 -- - 1 0.214 J - ND - 0.148 J - - ND ug/L 01/07/10 -- - 1 0.260 J - 0.144 J - 0.385 J - - ND ug/L 07/20/10 -- - 1 ND - ND - ND - - ND ug/L 01/31/11 -- - 1 ND - ND - ND - - ND ug/L 07/18/11 -- - 1 ND - ND - ND - - ND ug/L 01/25/12 -- - 1 ND - ND - ND - - ND ug/L 07/19/12 -- - 1 ND - ND - ND - - ND ug/L 01/30/13 -- - 1 ND - ND - ND - - ND ug/L 07/15/13 -- - 1 ND - ND - ND - - ND ug/L 01/27/14 -- - 1 ND - ND - ND - - ND ug/L 07/14/14 -- - 1 ND - ND - ND - - ND ug/L 01/20/15 0.36 - 1 ND - ND - ND - - ND ug/L 07/23/15 0.36 - 1 ND - ND - ND - - ND ug/L 01/12/16 0.36 - 1 ND - ND - ND - - ND ug/L O8/01/16 0.36 - 1 ND - ND - ND - - ND ug/L 01/17/17 0.36 - 1 ND - ND - ND - - ND ug/L 07/26/17 0.36 - 1 ND - ND - ND - - ND ug/L 02/20/18 0.36 - 1 ND - ND - ND - - ND ug/L 08/08/18 0.36 1.00 -- ND - ND - ND - - ND ug/L 01/15/19 0.36 1.00 -- ND - ND - ND - - ND ug/L 08/15/19 0.36 1.00 -- ND - ND - ND - - ND ug/L 01/13/20 0.36 1.00 -- ND - ND - ND - - ND ug/L 08/10/20 0.36 1.00 -- ND - ND - ND - - ND ug/L 01/26/21 0.36 1.00 -- ND - ND - ND - - ND ug/L 08/27/21 0.36 1.00 -- ND - - ND - ND - ND ug/L 02/09/22 0.360 1.00 -- ND - - ND - ND - ND u /L 08/15/22 0.360 1.00 ND ND ND ND Chromium ug/L 11/04/05 -- - -- ND ND - - 24 - - -- NC 2L = 10 ug/L ug/L 12/12/05 -- - -- ND 71 - - 26 - - -- EPA MCL = 100 ug/L ug/L 12/13/05 -- - -- ND ND - - ND - - -- ug/L 12/22/05 -- - -- ND 32 - - 35 - - -- ug/L 12/30/05 -- - 10 ND 29 - - 15 - - ND ug/L 09/26/06 -- - 10 ND ND - - ND - - ND ug/L 01/31/07 -- - 10 ND 3.2 J - - ND - - ND ug/L 07/12/07 -- - 10 79.2 11.6 - - 3.0 J - - ND ug/L 08/06/07 -- - 10 - - ND - - - - ND ug/L 01/17/08 -- - 10 ND - 2.2 J - ND - - ND ug/L 07/30/08 -- - 10 ND - 4.6 B - ND - - 14.5 ug/L 01/22/09 -- - 10 ND - ND - ND - - ND ug/L 07/14/09 -- - 10 ND - 2.32 J - ND - - ND ug/L 01/07/10 -- - 10 ND - ND - 10.5 -- - ND ug/L 07/20/10 -- - 10 ND - ND - ND - - ND ug/L 01/31/11 -- - 10 ND - ND - ND - - ND ug/L 07/18/11 -- - 10 ND - ND - ND - - ND ug/L 01/25/12 -- - 10 ND - ND - ND - - ND ug/L 07/19/12 -- - 10 ND - ND - ND - - ND ug/L 01/30/13 -- - 10 ND - ND - ND - - 1.5 J ug/L 07/15/13 -- - 10 ND - ND - ND - - ND ug/L 01/27/14 -- - 10 ND - ND - ND - - ND ug/L 07/14/14 -- - 10 ND - ND - ND - - ND ug/L 01/20/15 1.40 - 10 ND - ND - ND - - ND ug/L 07/23/15 1.40 - 10 ND - ND - ND - - ND ug/L 01/12/16 1.40 - 10 ND - ND - ND - - ND ug/L 08/01/16 1.40 - 10 ND - ND - ND - - ND ug/L 01/17/17 1.40 - 10 ND - ND - ND - - ND ug/L 07/26/17 1.40 - 10 ND - ND - ND - - ND ug/L 02/20/18 1.40 - 10 ND - ND - ND - - ND ug/L 08/08/18 1.40 10.0 -- ND - ND -- ND - - 1.66 J ug/L 01/15/19 1.40 10.0 -- ND - ND - ND - - ND ug/L 08/15/19 1.40 10.0 -- ND - ND - ND - - ND ug/L 01/13/20 1.40 10.0 -- ND - ND - 1A2 J - - ND ug/L 08/10/20 1.40 10.0 -- ND - 257 J - 1.53 J - - ND ug/L 01/26/21 1.40 10.0 -- NO -- 206 J - ND - - ND ug/L 08/27/21 1.40 10.0 -- NO - -- T24 J - ND - ND ug/L 02/09/22 1.40 10.0 -- ND - -- 9.05 J - ND - ND u /L 08/15/22 1.40 10.0 ND 11.3 ND ND \\til) GOLDER Page 2 of 9 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 Cobalt ug/L 11/04/05 -- - -- ND ND - - ND - - -- NC 2L = 1 ug/L ug/L 12/12/05 -- - -- ND 14 - - ND - - No EPA MCL ug/L 12/13/05 -- - -- ND 12 - - ND - - -- ug/L 12/22/05 -- - -- ND ND - - 13 -- - -- ug/L 12/30/05 -- - 10 ND 10 - - 10 -- - ND ug/L 09/26/06 -- - 10 - - - - - - - ND ug/L 01/31/07 -- - 10 ND 8.6 J - - ND - - ND ug/L 07/12/07 -- - 10 ND 3.0 J -- - ND - - ND ug/L 08/06/07 -- - 10 - - 2.7 J -- - - - ND ug/L 01/17/08 -- - 10 ND - ND - ND - - ND ug/L 07/30/08 -- - 10 ND - 1.8 B - ND - - 1.1 J ug/L 01/22/09 -- - 10 2.1 B - 1.7 B -- ND - - 1.5 J ug/L 07/14/09 -- - 10 ND - 0.807 J -- ND - - ND ug/L 01/07/10 -- - 10 ND - 0.766 J -- 4.77 J -- - ND ug/L 07/20/10 -- - 10 ND - ND - ND - - ND ug/L 01/31/11 -- - 10 ND - ND - ND - - ND ug/L 07/18/11 -- - 10 ND - ND - ND - - ND ug/L 01/25/12 -- - 10 ND - 1.10 J -- ND - - ND ug/L 07/19/12 -- - 10 ND - ND - ND - - ND ug/L 01/30/13 -- - 10 ND - 1.42 J -- ND - - ND ug/L 07/15/13 -- - 10 ND - ND - ND - - ND ug/L 01/27/14 -- - 10 ND - 1.66 J -- ND - - ND ug/L 07/14/14 -- - 10 ND - ND - ND - - ND ug/L 01/20/15 1.10 - 10 ND - 1.51 J -- ND - - ND ug/L 07/23/15 1.10 - 10 ND - 1.45 J -- ND - - ND ug/L 01/12/16 1.10 - 10 ND - 1.61 J -- ND - - ND ug/L 08/01/16 1.10 - 10 ND - 1.13 J -- ND - - ND ug/L 01/17/17 1.10 - 10 ND -- 1.90 J -- ND - - ND ug/L 07/26/17 1.10 - 10 ND - 1.62 J -- ND - - ND ug/L 02/20/18 1.10 - 10 1.16 B - 2.34 B -- ND - - 1.22 J ug/L 08/08/18 1.40 10.0 -- ND - 2.69 J -- 1.83 J -- - ND ug/L 01/15/19 1.40 10.0 -- ND - 4.18 J -- ND - - ND ug/L 08/15/19 1.40 10.0 -- ND - 4.67 J -- 7.79 J -- - ND ug/L 01/13/20 1.40 10.0 -- ND - 2.48 J -- ND - - ND ug/L 08/10/20 1.40 10.0 -- ND - 2.72 J -- 19.6 -- - ND (Verification Event) ug/L 10/19/20 1.40 10.0 -- - - - - 14.0 (14.2)' -- - ND ug/L 01/26/21 1.40 10.0 -- ND - 3.36 J -- 25.9 -- - ND ug/L O8/27/21 1.40 10.0 -- ND - - 75.5 - ND - ND (Verification Event) ug/L 10/08/21 1.40 10.0 -- - - - 84.0 - - - ND ug/L 02/09/22 1.40 10.0 -- ND - - 63.9 - ND - ND ug/L O8115/22 1.40 10.0 ND 76.7 ND ND Copper ug/L 11/04/05 -- - -- ND ND - - ND - - -- NC 2L = 1000 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - -- EPA MCL = 1300 ug/L ug/L 12/13/05 -- - -- NO ND - - ND - - -- ug/L 12/22/05 -- - -- ND ND - - ND - - -- ug/L 12/30/05 -- - 200 ND ND - - ND - - ND ug/L 09/26/06 -- - 200 - - - - - - - ND ug/L 01/31/07 -- - 10 ND 4.70 J - - ND - - ND ug/L 07/12/07 -- - 10 3.70 J ND - - ND - - ND ug/L 08/06/07 -- - 10 - - ND - - - - 4 J ug/L 01/17/08 -- - 10 1.80 B - 1.90 B - 1.20 B - - 1.30 J ug/L 07/30/08 -- - 10 ND - ND - ND - - ND ug/L 01/22/09 -- - 10 2.40 J - ND - ND - - ND ug/L 07/14/09 -- - 10 1.12 B - 1.28 B - 4.03 B - - 1.04 J ug/L 01/07/10 -- - 10 ND - ND - 2.34 J - - ND ug/L 07/20/10 -- - 10 ND - ND - ND - - 3.50 J ug/L 01/31/11 -- - 10 1.78 J - ND -- ND - - ND ug/L 07/18/11 -- - 10 ND - ND -- ND - - ND ug/L 01/25/12 -- - 10 ND - ND -- ND - - ND ug/L 07/19/12 -- - 10 ND - ND -- ND - - ND ug/L 01/30/13 -- - 10 ND - ND -- 1.87 J - - ND ug/L 07/15/13 -- - 10 ND - ND - ND - - ND ug/L 01/27/14 -- - 10 ND - ND - ND - - ND ug/L 07/14/14 -- - 10 ND - ND - ND - - ND ug/L 01/20/15 1.60 - 10 ND - 1.74 J - ND - - ND ug/L 07/23/15 1.60 - 10 ND - ND - ND - - 1.90 J ug/L 01/12/16 1.60 - 10 ND - ND - ND - - 3.52 J ug/L 08/01/16 1.60 - 10 ND - ND - ND - - ND ug/L 01/17/17 1.60 - 10 ND - 2.32 B - ND - - 4.80 J ug/L 07/26/17 1.60 - 10 1.89 B - 1.72 B - ND - - 4.18 J ug/L 02/20/18 1.60 - 10 ND - ND -- ND - - ND ug/L 08/08/18 1.60 10.0 -- ND -- ND -- ND - - ND ug/L 01/15/19 1.60 10.0 -- ND -- ND -- ND - - ND ug/L 08/15/19 1.60 10.0 -- 1.63 J -- ND -- ND - - ND ug/L 01/13/20 1.60 10.0 -- ND -- ND -- ND - - ND ug/L 08/10/20 1.60 10.0 -- 2.45 B -- ND -- ND - - ND ug/L 01/26/21 1.60 10.0 -- 2.55 J -- ND -- ND -- -- ND ug/L 08/27/21 1.60 10.0 -- ND -- -- ND -- ND -- ND ug/L 02/09/22 1.60 10.0 -- ND -- -- ND -- ND -- ND ug/L 08/15/22 1.60 10.0 1.85 J ND ND ND Lead ug/L 11/04/05 - -- -- ND ND -- -- 18 - -- - NC 2L = 15 ug/L ug/L 12/12/05 - -- -- ND 24 -- -- 16 - -- - EPA MCL =15 ug/L ug/L 12/13/05 - -- - ND 10 -- -- ND -- -- - ug/L 12/22/05 - -- - ND 11 -- -- 28 - -- - ug/L 12/30/05 - -- 10 ND 10 -- -- 23 - -- ND ug/L 09/26/06 - -- 10 ND ND -- -- ND -- -- ND ug/L 01/31/07 - -- 10 ND 4.0 J -- -- ND -- -- ND ug/L 07/12/07 - -- 10 ND ND -- -- ND -- -- ND ug/L 08/06/07 - -- 10 -- -- ND -- -- -- -- ND ug/L 01/17/08 - -- 10 ND -- ND -- ND -- -- ND ug/L 07/30/08 - -- 10 ND -- ND -- ND -- -- ND ug/L 01/22/09 - -- 10 ND -- ND -- ND -- -- ND ug/L 07/14/09 - -- 10 ND -- 2.35 B -- ND -- -- 3.40 J ug/L 01/07/10 - -- 10 1.47 B -- ND -- 12.8 -- -- 1.58 J ug/L 07/20/10 - -- 10 ND -- ND -- ND -- -- ND ug/L 01/31/11 - -- 10 ND -- ND -- ND -- -- ND ug/L 07/18/11 - -- 10 ND -- ND -- ND -- -- ND ug/L 01/25/12 - -- 10 ND -- ND -- ND -- -- ND ug/L 07/19/12 - -- 10 ND -- ND -- ND -- -- ND ug/L 01/30/13 - -- 10 ND -- ND -- ND -- -- 1.97 J ug/L 07/15/13 - -- 10 ND -- ND -- ND -- -- ND ug/L 01/27/14 - -- 10 ND -- ND -- ND -- -- NO ug/L 07/14/14 - -- 10 ND -- ND -- ND -- -- ND ug/L 01/20/15 2.10 -- 10 ND -- ND -- ND -- -- ND ug/L 07/23/15 3.10 -- 10 ND -- ND -- ND -- -- ND ug/L 01/12/16 3.10 -- 10 ND -- ND -- ND -- -- ND ug/L O8/01/16 3.10 -- 10 ND -- ND -- ND -- -- ND ug/L 01/17/17 3.10 -- 10 ND -- ND -- ND -- -- ND ug/L 07/26/17 3.10 -- 10 ND -- ND -- ND - -- ND ug/L 02/20/18 3.10 - 10 ND -- ND -- ND - -- ND ug/L 08/08/18 3.10 10.0 -- ND -- ND -- ND - -- ND ug/L 01/15/19 3.10 10.0 -- NO -- ND -- ND - -- ND ug/L 08/15/19 3.10 10.0 -- NO -- ND -- ND - -- ND ug/L 01/13/20 3.10 10.0 -- NO -- ND -- ND -- - ND ug/L 08/10/20 3.10 10.0 -- NO -- ND -- ND -- - ND ug/L 01/26/21 3.10 10.0 -- NO - ND - ND - - ND ug/L 08/27/21 3.10 10.0 -- ND - - ND - ND - ND ug/L 02/09/22 3.10 10.0 -- 3.87 J - - ND - ND - ND ug/L 08/15/22 3.10 1 10.0 ND ND ND ND \\til) GOLDER Page 3 of 9 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 Mercury ug/L 12/30/05 -- - 0.5 - - - - - - - -- NC 2L = 1.05 ug/L ug/L 09/26/06 -- - 0.5 NO ND - - ND - - ND ug/L 01/31/07 -- - 0.2 NO ND - - ND - - ND ug/L 07/12/07 -- - 0.2 NO ND - - ND - - ND ug/L 08/06/07 -- - 0.2 - - NO - - - - ND ug/L 01/17/08 -- - 0.2 NO - ND - ND - - ND ug/L 07/30/08 -- - 0.2 NO - NO - ND - - ND ug/L 01/22/09 -- - 0.2 NO - NO - ND - - ND ug/L 07/14/09 -- - 0.2 NO - NO - ND - - ND ug/L 01/07/10 -- - 0.2 NO - NO - ND - - ND ug/L 07/20/10 -- - 0.2 NO - NO - ND - - ND ug/L 01/31/11 -- - 0.2 NO - NO - ND - - ND ug/L 07/18/11 -- - 0.2 ND - ND - ND - - ND ug/L 01/25/12 -- - 0.2 ND - ND - ND - - ND ug/L 07/19/12 -- - 0.2 ND - ND - ND - - ND ug/L 01/30/13 -- - 0.2 ND - ND - ND - - ND ug/L 07/15/13 -- - 0.2 ND - ND - ND - - ND ug/L 01/27/14 -- - 0.2 ND - ND - ND - - ND ug/L 07/14/14 -- - 0 ND - ND - NO - - ND ug/L 01/20/15 -- - 0.2 ND - ND - NO - - -- ug/L 07/23/15 0.170 - 0.2 ND - ND - NO - - ND ug/L 01/12/16 0.17 - 0.2 ND - ND - NO - - ND ug/L O8/01/16 0.170 - 0.2 ND - ND - NO - - ND ug/L 01/17/17 0.170 - 0.2 ND ND - - NO - - ND ug/L 07/26/17 0.170 - 0.2 ND - ND - NO - - ND ug/L 02/20/18 0.170 - 0.2 ND ND - - NO - - - ug/L O8/08/18 0.150 0.200 -- ND - ND - ND - - ND ug/L 01/15/19 -- - -- ND - ND - 0.290 - - ND ug/L 08/15/19 0.2 10.0 -- ND - ND - NO - - ND ug/L 01/13/20 -- - -- ND - ND - NO - - ND ug/L 08/10/20 0.150 0.200 -- ND - ND - NO - - ND ug/L 01/26/21 0.150 0.200 -- ND - ND - ND - - ND ug/L O8/27/21 0.150 0.200 -- ND - - ND - ND - ND ug/L 02/09/22 0.150 0.200 -- ND - - ND - 0.151 J - ND u /L O8/15/22 0.150 0.200 ND ND 0.223 ND Nickel ug/L 11/04/05 -- - -- ND ND - - ND - - -- NC 2L = 100 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - No EPA MCL ug/L 12/13/05 -- - -- ND ND - - ND - - -- ug/L 12/22/05 -- - -- ND ND - - ND - - -- ug/L 12/3O/O5 -- - 50 ND ND -- - - - - ND ug/L 09/26/06 -- - 50 - - -- - - - - ND ug/L 01/31/07 -- - 50 ND 3.1 J -- - ND - - ND ug/L 07/12/07 -- - 50 31.7 J 5.3 J -- - ND - - ND ug/L 08/O6/07 -- - 50 - - ND - - - - ND ug/L 01/17/08 -- - 50 ND - ND - ND - - ND ug/L 07/30/08 -- - 50 ND - 2.9 B - ND - - 12.4 J ug/L 01/22/09 -- - 50 ND - ND - ND - - ND ug/L 07/14/09 -- - 50 ND - 1.30 J - 1.06 J - - ND ug/L 01/07/10 -- - 50 ND - ND - 4.93 J - - ND ug/L 07/20/10 -- - 50 ND - ND - ND - - ND ug/L 01/31/11 -- - 50 ND - ND - ND - - ND ug/L 07/18/11 -- - 50 ND - ND - ND - - ND ug/L 01/25/12 -- - 50 3.13 J - ND - ND - - ND ug/L 07/19/12 -- - 50 ND - ND - ND - - ND ug/L 01/30/13 -- - 50 ND - ND - ND - - ND ug/L 07/15/13 -- - 50 ND - ND - ND - - ND ug/L 01/27/14 -- - 50 ND - ND - ND - - ND ug/L 07/14/14 -- - 50 6.13 J - ND - ND - - ND ug/L 01/20/15 1.80 - 50 ND - ND - ND - - ND ug/L 07/23/15 1.80 - 50 ND - ND - ND - - ND ug/L 01/12/16 1.80 - 50 ND - ND - ND - - ND ug/L OB/01/16 2.20 - 50 ND - ND - ND - - ND ug/L 01/17/17 2.20 - 50 ND - ND - ND - - ND ug/L 07/26/17 2.20 - 50 ND - ND - ND - - ND ug/L 02/2O/18 2.20 - 50 ND - ND - ND - - ND ug/L 08/08/18 2.20 10.0 -- ND - ND - ND - - ND ug/L 01/15/19 2.20 10.0 -- ND - ND - ND - - ND ug/L 08/15/19 2.20 10.0 -- ND - ND - ND - - ND ug/L 01/13/20 2.20 10.0 -- ND - ND - ND - - ND ug/L 08/10/20 2.20 10.0 -- ND - ND - ND - - ND ug/L 01/26/21 2.20 10.0 -- ND - ND - ND - - ND ug/L 08/27/21 2.20 10.0 -- ND - - 61.6 - 6.32 J - ND ug/L 02/09/22 2.20 10.0 - ND - - 47.5 - 4.73 J - ND u /L 08/15/22 2.20 10.0 ND 57.9 6.04 J ND Selenium ug/L 12/30/05 -- - 20 ND ND - - ND - - ND NC 2L = 20 ug/L ug/L 09/26/06 -- - 20 ND ND - - ND - - ND EPA MCL = 50 ug/L ug/L 01/31/07 -- - 10 2.6 B ND -- - ND - - 2.0 J ug/L 07/12/07 -- - 10 ND ND -- - ND - - ND ug/L 08/06/07 -- - 10 - - ND - - - - ND ug/L 01/17/08 -- - 10 3.5 B - ND - 2.7 B - - 2.1 J ug/L 07/30/08 -- - 10 ND - ND - ND - - ND ug/L 01/22/09 -- - 10 ND - ND - ND - - ND ug/L 07/14/09 -- - 10 ND - ND - ND - - ND ug/L 01/07/10 -- - 10 ND - ND - ND - - ND ug/L 07/20/10 -- - 10 ND - ND - ND - - ND ug/L 01/31/11 -- - 10 ND - ND - ND - - ND ug/L 07/18/11 -- - 10 ND - ND - ND - - ND ug/L 01/25/12 -- - 10 ND - ND - ND - - ND ug/L 07/19/12 -- - 10 ND - ND - ND - - ND ug/L 01/30/13 -- - 10 ND - ND - ND - - ND ug/L 01/30/13 -- - 10 ND - ND - ND - - ND ug/L 07/15/13 -- - 10 ND - ND - ND - - ND ug/L 01/27/14 -- - 10 ND - ND - ND - - ND ug/L 07/14/14 -- - 10 ND - ND - ND - - ND ug/L 01/20/15 5 - 10 ND - ND - ND - - ND ug/L 07/23/15 5 - 10 ND - ND - ND - - ND ug/L 01/12/16 5 - 10 ND - ND - ND - - ND ug/L 08/01/16 6.2 - 10 ND - ND - ND - - ND ug/L 01/17/17 6.2 - 10 ND - ND - ND - - ND ug/L 07/26/17 6.2 - 10 ND - ND - ND - - ND ug/L 02/20/18 6.2 - 10 ND - ND - ND - - ND ug/L 08/08/18 6.2 10.0 -- ND - ND - ND - - ND ug/L 01/15/19 6.2 10.0 -- ND - ND - ND - - ND ug/L 08/15/19 6.2 10.0 -- ND - ND - ND - - ND ug/L 01/13/20 6.2 10.0 -- ND - ND - ND - - ND ug/L 08/10/20 6.2 10.0 -- ND -- ND - ND - - ND ug/L 01/26/21 6.2 10.0 -- ND - ND - ND - - ND ug/L 08/27/21 6.2 10.0 -- ND - -- ND - ND - ND ug/L 02/09/22 6.20 10.0 - ND - -- ND - ND - ND u /L 08/15/22 6.20 10.0 ND ND ND ND \\til) GOLDER Page 4 of 9 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW18R2 MW-19 MW-19R PWS•1 Silver ug/L 12/01/05 -- - 10 NO ND - - NO - - NO NC 2L = 20 ug/L ug/L 09/26/06 -- - 10 NO ND - - NO - - NO EPA MCL = 100 ug/L ug/L 01/31/07 -- - 10 NO ND - - NO - - NO ug/L 07/12/07 -- - 10 NO ND - - NO - - NO ug/L 08/06/07 -- - 10 - - NO - - - - NO ug/L 01/17/08 -- - 10 NO - NO - NO - - NO ug/L 07/30/08 -- - 10 NO - NO - NO - - NO ug/L 01/22/09 -- - 10 2.7 B - NO - NO - - 2.1 J ug/L 07/14/09 -- - 10 NO - NO - NO - - NO ug/L 01/07/10 -- - 10 NO - NO - NO - - NO ug/L 07/20/10 -- - 10 NO - NO - NO - - NO ug/L 01/31/11 -- - 10 NO - NO - NO - - NO ug/L 07/18/11 -- - 10 NO - NO - NO - - NO ug/L 01/25/12 -- - 10 1.91 J - NO - NO - - NO ug/L 07/19/12 -- - 10 2.94 J - 3.44 J - NO - - NO ug/L 01/30/13 -- - 10 NO - 2.31 J - NO - - NO ug/L 07/15/13 -- - 10 NO - NO - NO - - NO ug/L 01/27/14 -- - 10 NO - NO - NO - - NO ug/L 07/14/14 -- - 10 NO - NO - NO - - NO ug/L 01/20/15 1.90 - 10 NO - NO - NO - - 3.39 J ug/L 07/23/15 1.90 - 10 NO - NO - NO - - NO ug/L 01/12/16 1.90 - 10 NO - NO - NO - - NO ug/L O8/01/16 1.90 - 10 4.39 J - NO - NO - - NO ug/L 01/17/17 1.90 - 10 NO - NO - NO - - NO ug/L 07/26/17 1.90 - 10 NO - 1.90 J - 2.12 J - - NO ug/L 02/20/18 1.90 - 10 NO - NO - NO - - NO ug/L O8/08/18 1.90 10.0 -- NO - NO - 2.11 J - - NO ug/L 01/15/19 1.90 10.0 -- NO - NO - NO - - NO ug/L 08/15/19 1.90 10.0 -- NO - NO - NO - - ND ug/L 01/13/20 1.90 10.0 -- NO - NO - NO - - ND ug/L 08/10/20 1.90 10.0 -- 2.49 B - 2.43 B - NO - - ND ug/L 01/26/21 1.90 10.0 -- NO - NO - NO - - ND ug/L 08/27/21 1.90 10.0 -- NO - - NO - NO - ND ug/L 02/09/22 1.90 10.0 -- NO - - NO - NO - ND ug/L 08/15/22 1.90 10.0 NO NO NO ND Thallium ug/L 11/04/05 -- - -- NO NO - - NO - - -- NC 2L = 2 ug/L ug/L 12/12/05 -- - -- NO NO - - NO - - -- EPA MCL = 2 ug/L ug/L 1203/05 -- - -- NO ND - - NO - - -- ug/L 12/22/05 -- - -- NO NO - - NO - - -- ug/L 12/30/05 -- - 10 NO NO - -- NO - - NO ug/L 09/26/06 -- - 10 - - - - - - - NO ug/L 01/31/07 -- - 5.5 NO 0.085 J - - NO - - NO ug/L 07112t07 -- - 5.5 NO NO - - NO - - NO ug/L 08/06/07 -- - 5.5 - - 0.080 J - - - - NO ug/L 01/17/08 -- - 5.5 NO - 0.084 J - NO - - NO ug/L 07/30/08 -- - 5.5 NO - 0.141 J - NO - - NO ug/L 01/22/09 -- - 5.5 NO - 0.078 B - 0.068 B - - 0.096 J ug/L 07/14/09 -- - 5.5 NO - 0.0580 J - 0.0490 J - - NO ug/L 01/07/10 -- - 5.5 NO - NO - 0.415 J - - NO ug/L 07/20/10 -- - 5.5 NO - NO - NO - - NO ug/L 01/31/11 -- - 5.5 NO - NO - NO - - NO ug/L 07/18/11 -- - 5.5 NO - NO - NO - - NO ug/L 01/25/12 -- - 5.5 NO - NO - NO - - NO ug/L 07/19/12 -- - 5.5 NO - NO - NO - - NO ug/L 01/30/13 -- - 5.5 NO - ND - NO - - NO ug/L 07/15/13 -- - 5.5 NO - 0.113 J -- NO - - NO ug/L 01/27/14 -- - 5.5 NO - 0.151 J -- NO - - NO ug/L 07/14/14 -- - 5.5 NO - NO - NO - - NO ug/L 01/20/15 0.110 - 5.5 NO - 0.178 J - NO - - -- ug/L 07/23/15 0.110 - 5.5 ND - 0.120 J - ND - - NO ug/L 01/12/16 0.110 - 5.5 ND - 0.309 J - 0.118 J - - NO ug/L 08/01/16 0.110 - 5.5 ND - 0.285 J - ND - - NO ug/L 01/17/17 0.110 - 5.5 ND - 0.439 J - ND - - NO ug/L 07/26/17 0.110 - 5.5 0.160 J - 0.458 J - 0.155 J - - NO ug/L 02/20/18 0.110 - 5.5 ND - 0.339 J - ND - - NO ug/L 08/08/18 0.550 5.00 -- ND -- ND -- ND - - NO ug/L 01/15/19 0.550 5.00 -- ND -- ND -- ND - - NO ug/L 08/15/19 0.220 2.00 -- ND -- 0.242 J -- ND -- - NO ug/L 01/13/20 0.220 2.00 -- ND -- 0.699 J -- ND -- - NO ug/L 08/10/20 0.220 2.00 - ND -- 0.390 J -- 0.229 J -- - NO ug/L 01/26/21 0.220 2.00 - ND -- 0.493 J -- ND -- -- NO ug/L 08/27/21 0.220 2.00 - ND -- -- 0.228 J -- ND -- NO ug/L 02/09/22 0.220 2.00 - ND - - 0.241 J - ND -- NO ug/L 08/15/22 0.220 2.00 ND 0.392 J ND NO Tin ug/L 02/09/22 2.90 10.0 - -- -- -- 26.7 -- -- -- NO NC 21. = 2000 ug/L ug/L 08/15/22 2.90 10.0 -- -- -- -- ND -- -- -- NO Vanadium ug/L 11/04/05 - -- - ND ND -- -- 52 •- -- - NC 21. = 7 ug/L ug/L 12/12/05 - -- - ND 160 -- -- 53 •- -- - NoEPAMCL ug/L 12/13/05 - -- - ND 42 -- -- ND -- -- - ug/L 12/22/05 - -- - ND 78 -- -- 78 •- -- - ug/L 12/30/05 - -- 40 ND 69 -- -- 45 •- -- NO ug/L 09/26/06 -- - 40 -- -- -- -- -- - - NO ug/L 01/31/07 -- - 25 ND 16.4 J -- -- ND - - NO ug/L 07/12/07 -- - 25 ND ND -- -- ND - - NO ug/L 08/06/07 -- - 25 -- -- 1.4 J •- -- - - NO ug/L 01/17/08 -- - 25 1.4 J - 7.8 J -- 1.7 J -- - NO ug/L 07/30/08 -- - 25 ND - 5.3 J -- ND - - NO ug/L 01/22/09 -- - 25 2.3 B - 2.5 B - ND - - 1.4 J ug/L 07/14/09 -- - 25 ND - 4.91 J -- 1.55 J -- - NO ug/L 01/07/10 -- - 25 ND - 1.53 J -- 23.5 J -- - NO ug/L 07/20/10 -- - 25 NO - 1.77 J -- 2.02 J -- - NO ug/L 01/31/11 -- - 25 NO - NO - NO - - NO ug/L 07/18/11 -- - 25 NO - NO - NO - - NO ug/L 01/25/12 -- - 25 NO - ND - NO - - NO ug/L 07/19/12 -- - 25 NO - ND - NO - - NO ug/L 01/30/13 -- - 25 NO - ND - NO - - NO ug/L 07/15/13 -- - 25 ND - ND - ND - - NO ug/L 01/27/14 -- - 25 ND - ND - ND - - NO ug/L 07/14/14 -- - 25 ND - ND - ND - - NO ug/L 01/20/15 1.40 - 25 ND - ND - ND - - NO ug/L 07/23/15 1.40 - 25 ND -- ND -- ND - - NO ug/L 01/12/16 1.40 - 25 ND -- NO -- ND - - NO ug/L 08/01/16 1.40 - 25 ND -- NO -- ND - - NO ug/L 01/17/17 1.40 - 25 ND -- NO -- ND - - NO ug/L 07/26/17 1.40 - 25 ND -- NO -- ND - - NO ug/L 02/20/18 1.40 -- 25 ND -- NO -- ND - - NO ug/L 08/08/18 1.40 10.0 -- ND -- NO -- 1.74 J - -- NO ug/L 01/15/19 1.40 10.0 -- ND -- NO -- ND -- -- NO ug/L 08/15/19 1.40 10.0 - ND -- NO -- ND -- -- NO ug/L 01/13/20 1.40 10.0 -- ND -- NO -- 3.35 J - -- NO ug/L 08/10/20 1.40 10.0 -- ND -- NO -- ND -- -- NO ug/L 01/26/21 1.40 10.0 -- ND -- NO -- ND -- -- NO ug/L 08/27/21 1.40 10.0 -- ND -- -- ND -- ND -- NO ug/L 02/09/22 1.40 10.0 - ND -- -- ND -- ND -- NO ug/L O8/15/22 1.40 10.0 ND ND ND NO \\til) GOLDER Page 5 of 9 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW18R2 MW-19 MW-19R PWS•1 Zinc ug/L 11/04/05 -- - -- 52 NO - - 62 - - -- NC 2L = 1000 ug/L ug/L 12MV05 -- - -- NO 56 - - 68 - - -- EPA MCL = 5000 ug/L ug/L 12/13/05 -- - -- NO NO - - NO - - -- ug/L 12/22/05 -- - -- NO NO - - 94 - - -- ug/L 12/30/05 -- - 50 NO 430 - - 51 - - NO ug/L 09/26/06 -- - 50 - - - - - - - NO ug/L 01/31/07 -- - 10 NO 10.1 - - NO - - ND ug/L 07/12/07 -- - 10 3.7 J NO -- -- NO - - ND ug/L O8/06/07 -- - 10 -- - 15 B -- -- - - 15 J ug/L 01/17/08 -- - 10 NO - NO - NO - - ND ug/L 07/30/08 -- - 10 NO - NO - NO - - ND ug/L 01/22/09 -- - 10 NO - NO -- NO - - ND ug/L 07/14/09 -- - 10 7.12 J - NO -- 5.82 J - - ND ug/L 01/07/10 -- - 10 2.46 J - 27.3 -- 43.0 - - ND ug/L 07/20/10 -- - 10 NO - NO -- 8.41 J - - ND ug/L 01/31/11 -- - 10 NO - NO -- NO - - ND ug/L 07/18/11 -- - 10 NO - NO -- NO - - ND ug/L 01/25/12 -- - 10 NO -- NO -- NO - - ND ug/L 07/19/12 -- - 10 NO -- NO -- 4.63 J - - ND ug/L 01/30/13 -- - 10 NO -- NO - NO - - ND ug/L 07/15/13 -- - 10 NO - NO - NO - - NO ug/L 01/27/14 -- - 10 3.96 J - NO - NO - - ND ug/L 07/14/14 -- - 10 NO - NO - NO - - NO ug/L 01/20/15 3.80 - 10 5.76 J - NO - NO - - NO ug/L 07/23/15 3.80 - 10 NO - NO - NO - - NO ug/L 01/1206 3.80 - 10 NO - NO - NO - - NO ug/L O8101/16 4.40 - 10 NO - NO - NO - - NO ug/L 01/17/17 4.40 - 10 NO - NO - NO - - NO ug/L 07/26/17 4.40 - 10 NO - NO - NO - - NO ug/L 02/20/18 4.40 - 10 NO - NO - NO - - NO ug/L 08/08/18 4.40 10.0 -- NO - NO - NO - - NO ug/L 01/15/19 4.40 10.0 -- NO - NO - NO - - NO ug/L 08/15/19 4.40 10.0 -- 5.60 J - 5.87 J - 5.92 J - - NO ug/L 01/13/20 4.40 10.0 -- 6.97 J - 4.68 J - NO - - NO ug/L 08/10/20 4.40 10.0 -- ND - NO - 4.50 J - - NO ug/L 01/26/21 4.40 10.0 -- 5.33 J - NO - ND - - NO ug/L 08/27/21 4.40 10.0 -- 7.88 J - - 7.73 J - ND - NO ug/L 02/O9/22 4.40 10.0 -- ND - -- 5.76 J - ND - NO u /L 08/15/22 4.40 10.0 6.40 J 5.59 J ND NO Iron ug/L 01/31/07 -- - 300 20 J 2510 -- - 180 - - NO NC 2L = 300 ug/L ug/L 07/12/07 -- - 300 284 J 968 - - 31 J - - NO EPA MCL = 300 ug/L ug/L OS/O6/07 -- - 300 - - 585 -- - - - NO ug/L 01/17/08 -- - 300 NO - 2310 -- 286 J - - NO ug/L 07/30/08 -- - 300 NO - 1310 -- 79 J - - NO ug/L 01/22/09 -- - 300 NO - 623 -- 68 J - - NO ug/L 07/14/09 -- - 300 47.9 J - 1450 -- 224 J - - NO ug/L 01/07/10 -- - 300 20.0 J - 484 -- 9220 -- - NO ug/L 07/20/10 -- - 300 58.4 B - 469 -- 431 -- - 30.8 J ug/L 01/31/11 -- - 300 NO - 57.0 J - 35.9 J -- - ND ug/L 07/18/11 -- - 300 NO - NO - 102 J -- - ND ug/L 01/25/12 -- - 300 NO - NO - 71.2 J -- - ND ug/L 07/19/12 -- - 300 27.7 J - NO - 65.4 J -- - ND ug/L 01/30/13 -- - 300 48.3 J - NO - 58.6 J -- - ND ug/L 07/15/13 -- - 300 NO - NO - 97.1 J -- - ND ug/L 01/27/14 -- - 300 NO - NO - NO - - ND ug/L 07/14/14 -- - 300 40.6 J - 165 J - 25.9 J - - ND ug/L 01/20/15 22.0 - 300 NO - 47.5 J - NO - - ND ug/L 07/23/15 22.0 - 300 NO - 35.5 J -- NO - - ND ug/L 01/12/16 22.0 - 300 59.8 J - 222 J -- NO - - ND ug/L 08/01/16 22.0 - 300 65.1 J - 168 J -- 38.7 J - - ND ug/L 01/17/17 22.0 - 300 NO - 32.6 J -- NO - - ND ug/L 07/26/17 22.0 - 300 47.6 J - 36.6 J -- NO - - ND ug/L 02/20/18 22.0 - 300 NO - 34 J - 40.4 J - - ND ug/L OS/OS/18 22.0 50.0 -- 63.4 - 62.8 -- 167 - - ND ug/L 01/15/19 22.0 50.0 -- NO - 1820 -- 104 - - ND ug/L 02/21/19 22.0 50.0 -- NO - 2110 -- - - - ND ug/L 08/15/19 22.0 50.0 -- NO - 1480 -- 5930 -- - ND ug/L 01/13/20 22.0 50.0 -- NO - 796 -- 1370 -- - ND ug/L 08/10/20 22.0 50.0 -- 81.8 - 3550 -- 20600 -- - ND ug/L 01/26/21 22.0 50.0 -- 39.4 J - 2170 -- 32500 -- - ND ug/L 08/27/21 22.0 50.0 -- 95.8 - - 12600 - 51.6 - ND (Verification Event) ug/L 10/08/21 22.0 50.0 -- - - - 7500 - - - ND ug/L 02/09/22 22.0 50.0 -- 25.7 J - -- 15600 - 38.5 J - ND u /L 08/15/22 22.0 50.0 NO 26700 NO ND Manganese ug/L 01/31/07 -- - 50 2.2 J 660 - -- 22.1 - - ND NC 2L = 50 ug/L ug/L 07/12/07 -- - 50 15.1 J 236 - -- 11.2 J - - ND EPA MCL = 50 ug/L ug/L 08/06/07 -- - 50 -- -- 163 -- -- - - NO ug/L 01/17/08 -- - 50 NO - 38.9 J -- 12.0 B - - 3.5 J ug/L 07/30/08 -- - 50 1.6 J - 35.4 J - 7.5 J - - NO ug/L 01/22/09 -- - 50 2.0 J - 33.7 J - 7.7 J - - ND ug/L 07/14/09 -- - 50 2.90 J - 37.4 J - 19.4 J -- - ND ug/L 01/07/10 -- - 50 1.77 J - 31.0 J - 202 -- - ND ug/L 07/20/10 -- - 50 5.27 J - 34.6 J - 22.2 J -- - ND ug/L 01/31/11 -- - 50 3.02 J - 43.8 J - 12.8 J -- - ND ug/L 07/18/11 -- - 50 1.70 J - 45.9 J -- 8.73 J -- - ND ug/L 01/25/12 - - 50 NO - 65.6 -• 6.77 J - - ND ug/L 07/19/12 -- - 50 1.23 J - 62.2 -• 3.99 J -- - ND ug/L 01/30/13 -- - 50 1.95 J - 149 -• 4.13 J -- - ND ug/L 07/15/13 -- - 50 3.00 J - 342 -• 8.13 J -- -- ND ug/L 01/27/14 -- - 50 3.48 J - 225 - 5.88 J - -- ND ug/L 07/14/14 - - 50 7.22 J -- 177 - 7.62 J -- -- ND ug/L 01/20/15 1.10 -- 50 4.07 J -- 362 - 5.00 J -- -- ND ug/L 07/23/15 1.10 -- 50 1.85 J -- 184 - 9.51 J -- -- ND ug/L 01/12/16 1.10 -- 50 3.21 J -- 690 - 4.39 J -- -- ND ug/L 08/01/16 1.10 -- 50 4.82 J -- 330 - 51.0 - -- NO ug/L 01/17/17 1.10 -- 50 6.69 J -- 668 - 4.50 J -- -- NO ug/L 07/26/17 1.10 -- 50 4.34 J -- 513 - 40.6 J -- -- NO ug/L 02/20/18 1.10 -- 50 9.35 J -- 676 - 5.72 J -- -- NO ug/L O8/08/18 1.50 10.0 - 5.48 J -- 572 - 24.7 -- -- NO ug/L 01/15/19 1.50 10.0 - 8.93 J -- 1540 -- 18.3 -- -- NO (Verification Event) ug/L 02/21/19 1.50 10.0 - -- -- 1780 -- -- -- -- NO ug/L O8/15/19 1.50 10.0 - 29.1 -- 827 -- 911 - -- NO ug/L 01/13/20 1.50 10.0 - 17.9 -- 1550 -- 200 - -- NO ug/L O8/10120 1.50 10.0 - 25.4 -- 1120 -- 2860 - -- NO ug/L 01/26/21 1.50 10.0 - 17.9 -- 1240 - 3380 - -- NO ug/L O8/27121 1.50 10.0 - 54.8 -- -- 14100 -- 73.5 -- NO (Verification Event) ug/L 10/08/21 1.50 10.0 - -- -- -- 15500 -- -- -- NO ug/L 02/09/22 1.50 10.0 - 21.7 - - 17300 - 34.5 -- NO u /L O8/15/22 1.50 10.0 14.2 17300 24.5 NO \\til) GOLDER Page 6 of 9 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R PWS-1 Acetone ug/L 11/04/05 -- - -- ND ND - - ND - - -- NC21- = 6000 ug/L ug/L 12/12/05 -- - -- ND ND - - ND - - No EPA MCL ug/L 12/13/05 -- - -- ND ND - - ND - - -- ug/L 12/22/05 -- - -- NO ND - - ND - - -- ug/L 12/30/05 -- - 20 ND ND - - ND - - ND ug/L 09/26/06 -- - 100 ND ND - - ND - - ND ug/L 09/26/06 -- - 100 ND ND ND - ND - - ND ug/L 01/31/07 -- - 100 ND ND - - ND - - ND ug/L 01/31/07 -- - 100 ND ND ND - ND - - ND ug/L 07/12/07 -- - 100 ND ND - - ND - - 0.93 J ug/L 07/12/07 -- - 100 ND ND ND - ND - - ND ug/L 08/06/07 -- - 100 -- -- ND - - - - ND ug/L 08/06/07 -- - 100 ND ND ND - ND - - 0.93 J ug/L 01/17/08 -- - 100 ND -- ND - ND - - ND ug/L 01/17/08 -- - 100 ND ND ND - ND - - ND ug/L 07/30/08 -- - 100 5.2 J -- ND - ND - - ND ug/L 01/22/09 -- - 100 ND -- ND - ND - - ND ug/L 07/14/09 -- - 100 ND -- ND - ND - - ND ug/L 01/07/10 -- - 100 ND -- ND -- ND - - ND ug/L 07/20/10 -- - 100 NO -- NO -- NO - - ND ug/L 01/31/11 -- -- 100 ND -- ND -- ND - - ND ug/L 07/18/11 -- -- 100 ND -- ND -- ND - - ND ug/L 01/25/12 -- -- 100 ND -- ND -- ND - - ND ug/L 07/19/12 - - 100 ND -- ND -- ND - -- ND ug/L 01/30/13 - -- 100 ND -- ND -- ND -- -- ND ug/L 07/15/13 - -- 100 ND -- ND -- ND -- -- ND ug/L 01/27/14 - -- 100 ND -- ND -- ND -- -- ND ug/L 07/14/14 - -- 100 ND -- ND -- ND -- -- ND ug/L 01/20/15 1.2 -- 100 ND -- ND -- ND -- -- -- ug/L 07/23/15 1.2 -- 100 ND -- ND -- ND -- -- ND ug/L 01/12/16 1.2 -- 100 ND -- ND -- ND -- -- ND ug/L O8/01/16 1.2 -- 100 ND -- ND -- ND -- -- ND ug/L 01/17/17 10 -- 100 ND -- ND -- ND -- -- ND ug/L 07/26/17 10 -- 100 ND -- ND -- ND -- -- NO ug/L 02/20/18 10 -- 100 ND -- ND -- ND -- -- ND ug/L 08/08/18 10 20 - ND -- ND -- ND -- -- ND ug/L 01/15/19 10 20 - ND -- ND -- ND -- -- ND ug/L 08/15/19 10 20 -- ND -- ND -- ND - -- ND ug/L 01/13/20 10 20 -- ND -- ND -- ND - - ND ug/L 08/10/20 10 20 -- ND -- ND -- ND - - ND ug/L 01/26/21 10 20 -- ND - ND - ND - - ND ug/L 08/27/21 10 20 -- ND - - ND -- ND - 38 ug/L 02/09/22 10 20 -- ND - - ND - ND ND ND ug/L 08/15/22 10 20 ND ND ND 20 Benzene ug/L 01/31/07 -- - 3 ND ND - - ND - - ND NC 2L = 1 ug/L ug/L 07/12/07 -- - 1 ND ND -- - ND - - ND EPA MCL = 5 ug/L ug/L 08/06/07 -- - 1 -- - ND - - - - ND ug/L 01/17/08 -- - 1 ND - ND - ND - - ND ug/L 07/30/08 -- - 1 ND - ND -- ND - - ND ug/L 01/22t09 -- - 1 ND - ND - ND - - ND ug/L 07/14/09 -- - 1 ND - ND -- ND - - ND ug/L 01/07/10 -- - 1 ND - ND -- ND - - ND ug/L 07/20/10 -- - 1 ND - ND -- ND - - ND ug/L 01/31/11 -- - 1 ND - ND -- ND - - ND ug/L 07/18/11 -- - 1 ND - ND -- ND - - ND ug/L 01/25/12 -- - 1 ND - ND -- ND - - ND ug/L 07/19/12 -- - 1 ND -- ND -- ND - - ND ug/L 01/30/13 -- - 1 ND -- ND -- ND - - ND ug/L 07/15/13 -- - 1 ND -- ND -- ND - - ND ug/L 01/27/14 -- - 1 ND - ND -- ND - - ND ug/L 07/14/14 -- - 1 ND - ND -- ND - - ND ug/L 01/20/15 -- - 1 ND - ND -- ND - - -- ug/L 07/23/15 0.15 - 1 ND -- ND -- ND - - ND ug/L 01/12/16 0.15 - 1 ND -- ND -- ND - - ND ug/L 08/01/16 0.15 - 1 ND -- ND -- 1.3 - - ND (Verification Event) ug/L 09/01/16 0.15 - 1 -- -- -- -- ND - - -- ug/L 01/17/17 0.15 - 1 ND -- ND -- ND - - ND ug/L 07/26/17 0.15 -- 1 ND -- ND -- ND - - ND ug/L 02/20/18 0.15 -- 1 ND ND -- -- ND - - ND ug/L 08/08/18 0.15 1.0 -- ND -- ND -- ND -- - ND ug/L 01/15/19 0.15 1.0 -- ND -- ND -- ND -- - ND ug/L 08/15/19 0.15 1.0 -- ND -- 2.1 - 4.5 - -- ND (Verification Event) ug/L 10/03/19 0.15 1.0 -- ND -- 2.3 -- 1.0 -- - ND ug/L 01/13/20 0.15 1.0 -- ND -- ND -- ND - - ND ug/L 08/10/20 0.15 1.0 -- ND -- 1.1 -- 5.8 - - ND (Verification Event) ug/L 10/19/20 0.15 1.0 -- -- -- 1.4 -- 3.2 - - ND ug/L 01/26/21 0.15 1.0 -- ND -- 0.79 J -- 7.4 -- - ND ug/L 08/27/21 0.15 1.0 -- ND -- -- 4.1 -- 0.75 J - ND (Verification Event) ug/L 10/08/21 0.15 1.0 -- -- -- -- 3.1 -- -- - ND ug/L 02/09/22 0.15 1.0 -- ND -- -- 4.5 -- 0.93 J 0.7 J ND ug/L 08/15/22 0.15 1.0 -- ND -- -- 5.5 -- 1.4 -- ND Verification Event ug/L 10/05/22 0.15 1.0 2.1 ND cis-1,2-Dichlomethene ug/L 09/26/06 -- - 5 ND ND -- - ND - - ND NC 21. = 70 ug/L ug/L 01/31/07 -- - 5 ND ND -- - ND - - ND EPA MCL = 70 ug/L ug/L 07/12/07 -- - 5 ND ND -- - ND - - ND ug/L 08/06/07 -- - 5 - - ND - - - - ND ug/L 01/17/08 -- - 5 ND - ND - ND - - ND ug/L 07/30/08 -- - 5 ND - ND - ND - - ND ug/L 01/22/09 -- - 5 ND - ND - ND - - ND ug/L 07/14/09 -- - 5 ND -- ND -- ND - - ND ug/L 01/07/10 -- - 5 ND - ND - ND - - ND ug/L 07/20/10 -- - 5 ND -- ND - ND - - ND ug/L 01/31/11 -- - 5 ND -- ND -- ND - - ND ug/L 07/18/11 -- - 5 ND -- ND -- ND - - ND ug/L 01/25/12 - - 5 ND -- NO -- ND - - ND ug/L 07/19/12 - -- 5 ND -- ND -- ND -- -- ND ug/L 01/30/13 - -- 5 ND -- ND -- ND -- -- ND ug/L 07/15/13 - -- 5 ND -- ND -- ND -- -- ND ug/L 01/27/14 - -- 5 ND -- 0.69 J -- ND -- -- ND ug/L 07/14/14 - -- 5 ND -- 1.7 J -- ND -- -- ND ug/L 01/20/15 0.15 -- 5 ND -- ND -- ND -- -- - ug/L 07/23/15 0.15 -- 5 ND -- 1.2 J -- ND -- -- ND ug/L 01/12/16 0.15 -- 5 ND -- ND -- ND -- -- ND ug/L O8101/16 0.15 -- 5 ND -- 0.89 J -- ND -- -- ND ug/L 01/17/17 0.15 -- 5 ND -- ND -- ND -- -- ND ug/L 07/26/17 0.15 -- 5 ND -- ND -- ND -- -- ND ug/L 02/20/18 0.15 -- 5 ND -- ND -- ND -- -- ND ug/L O8/08/18 0.15 1.0 - ND -- ND -- ND -- -- ND ug/L 01/15/19 0.15 1.0 - ND -- ND -- ND -- -- ND ug/L 08/15/19 0.15 1.0 - ND -- ND -- ND -- -- ND ug/L 01/13/20 0.15 1.0 - ND -- ND -- ND -- -- ND ug/L 08/10/20 0.15 1.0 -- ND -- ND -- ND -- -- ND ug/L 01/26/21 0.15 1.0 -- ND -- ND -- ND -- -- ND ug/L 08/27/21 0.15 1.0 -- ND -- -- ND -- ND -- ND ug/L 02/09/22 0.15 1.0 -- NO -- -- ND -- ND ND ND ug/L 08/15/22 0.15 1.0 ND ND ND ND \\til) GOLDER Page 7 of 9 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW-18R2 MWAS MW-19R PWS-1 1,4-Dioxane ug/L 08/08/18 25 60 -- NO - NO - NO - - NO NC 2L = 3 ug/L, No EPA MCL ug/L 01/15/19 1.2 2.0 -- NO - 4.6 -- NO - - NO (Verification Event) ug/L 02/21/19 1.2 2.0 -- NO - 5.0 -- NO - - NO ug/L 08/15/19 1.2 2.0 -- NO - 26 -- 25 -- - NO ug/L 01/13/20 1.2 2.0 -- NO - 6.3 -- 7.2 -- - NO ug/L 08/10/20 0.80 2.0 -- NO - 15 -- 29 -- - NO ug/L 01/26/21 0.80 2.0 -- NO - 14 -- 38 -- - NO ug/L 08/27/21 0.80 2.0 -- 1.5 J - -- 31 - 5.2 - NO ug/L 02/09/22 0.80 2.0 -- NO - -- 31 - 3.3 - NO ug/L O8/15/22 0.80 2.0 0.85 J 41 7.2 NO Tetrahydmfuran ug/L 01/31/11 -- - -- NO - NO - NO - - ND NC 2L=2000 ug/L ug/L 07/18/11 -- - -- NO - NO - NO - - NO No EPA MCL ug/L 07/18/11 -- - -- NO - NO - NO - - NO ug/L 01/25/12 -- - -- NO - NO - NO - - NO ug/L 07/19/12 -- - -- NO - ND - NO - - NO ug/L 01/30/13 -- - -- NO - ND - NO - - NO ug/L 07/15/13 -- - -- NO - 2.4 - NO - - NO ug/L 01/27/14 -- - -- NO - 1.3 - NO - - NO ug/L 07/14/14 -- - -- NO - NO - NO - - NO ug/L 01/20/15 0.8 - -- NO - NO - NO - - -- ug/L 07/23/15 0.8 - -- NO - NO - NO - - NO ug/L 01/12/16 0.8 - -- NO -- NO - NO - - NO ug/L 08/01/16 0.8 - -- NO - NO -- ND - - NO ug/L 01/17/17 0.8 - -- ND - NO -- 2.5 - - NO ug/L 07/26/17 0.8 - -- ND - NO -- ND - - NO ug/L 02/20/18 0.53 - -- ND -- NO -- ND - - NO ug/L 08/08/18 0.53 1.0 -- ND -- NO -- 3.2 - - NO ug/L 01/15/19 0.53 1.0 -- ND - NO -- ND - - NO ug/L 08/15/19 0.53 1.0 -- ND - NO -- ND - - NO ug/L 01/13/20 0.53 1.0 -- ND -- NO -- ND - - NO ug/L 08/10/20 0.53 1.0 -- ND -- 4.5 -- ND - - NO ug/L 01/26/21 0.53 1.0 -- ND -- NO -- ND -- -- NO ug/L 08/27/21 0.53 1.0 -- ND -- -- 21 -- 10 -- NO ug/L 02/09/22 0.53 1.0 -- ND -- -- ND -- ND -- NO ug/L 08/15/22 0.53 1.0 ND 14 ND NO Chloride mg/L 01/31/07 -- -- -- 11.0 6.0 -- - 9.0 - - NO NC 21. = 250 mg/L mg/L 07/12/07 -- -- -- 4.8 2.8 -- - 2.4 - - NO EPA MCL = 250 ug/L mg/L 08/06/07 -- - -- - - 2.9 - - - - NO mg/L 01/17/08 -- - -- 12 - 5.2 B - 7.5 B - - 2.1 mg/L 07/30/08 -- - -- 9.6 - 3.8 B - 5.6 - - 0.95 mg/L 01/22/09 -- - -- 7.5 - 2.6 J - 3.2 J - - NO mg/L 07/14/09 -- - -- 9.4 B - 5.8 B - 6.6 B - - 2.2 mg/L 01/07/10 -- - -- 9.1 - 6.0 - 6.0 - - NO mg/L 07/20/10 -- - -- 9.0 - 6.8 - 6.6 - - NO mg/L 01/31/11 -- - -- 8.7 B - 9.4 - 5.9 B - - 1.8 mg/L 07/18/11 -- - -- 7.8 - 8.9 - 5.6 B - - 1.5 mg/L 01/25/12 -- - -- 7.5 - 17 - 5.1 B - - 1.4 mg/L 07/19/12 -- - -- 5.6 - 7.1 - 4.6 - - ND mg/L 01/30/13 -- - -- 7.2 B - 22 - 4.6 B - - 1.5 mg/L 07/15/13 -- - -- 6.6 - 35 - 4.5 J - - ND mg/L 01/27/14 -- - -- 6.3 - 22 - 3.9 J - - ND mg/L 07/14/14 -- - -- 5.8 - 8.5 - 5.8 - - ND mg/L 01/20/15 2.2 - -- 6.5 - 21 - 5.4 - - -- mg/L 07/23/15 2.2 - -- 6.5 - 12 - 6.1 - - -- mg/I 01/12/16 2.2 - -- 5.6 - 35 - 2.3 J - - -- mg/L 08/01/16 0.29 - -- 4.6 J - 16 - 5.5 - - ND mg/L 01/17/17 2.2 - -- 5.3 - 30 - 4.7 J - - ND mg/L 07/26/17 2.2 - -- 5.3 - 23 - 5.0 - - ND mg/L 02/20/18 2.2 - -- 5 - 32 - 2.8 J - - ND mg/L 08/08/18 2.2 5 -- 3.6 J - 25 - 2.9 J - - ND mg/L 01/15/19 2.2 5 -- 3.3 J - 33 - NO - - ND (Verification Event) mg/L 02/21/19 2.2 5 -- - - 33 - - - - ND mg/L 08/15/19 2.2 5 -- 4.0 J - 92 - 11 - - ND mg/L 01/13/20 2.2 5 -- 5.4 - 39 - 5.3 - - ND mg/L 08/10/20 2.2 5 -- 3.6 J - 71 - 43 - - ND mg/L 01/26/21 2.2 5 -- 3.9 J - 52 - 50 - - ND mg/L O8/27/21 2.2 5 -- 4.6 J - - 110 - 5.9 - ND mg/L 02/09/22 2.2 5 -- 4.8 J - - 110 - 5.7 - ND mg/L O8/15/22 2.2 5 4.5 J 120 6.1 ND Total Dissolved Solids mg/L 01/31/07 -- - -- 120 108 - - 84 - - ND NC 2L = 500 mg/L mg/L 07/12/07 -- - -- 80 62 - - 72 - - ND No EPA MCL mg/L 08/06/07 -- - -- - - 90 - - - - ND mg/L 01/17/08 -- - -- 70 - 94 - 88 - - ND mg/L 07/30/08 -- - -- 110 - 48 - 96 - - ND mg/L 01/22/09 -- - -- 66 - 520 -- 52 - - ND mg/L 07/14/09 -- - -- 96 - 100 - 100 - - ND mg/L 01/07/10 -- - -- 80 - 60 - 74 - - ND mg/L 07/20/10 -- - -- 74 - 72 - 68 - - ND mg/L 01/31/11 -- - -- 94 - 100 - 44 - - ND mg/L 07/18/11 -- - -- 54 - 80 - 70 - - ND mg/L 01/25/12 -- - -- 56 - 82 - 56 - - ND mg/L 07/19/12 -- - -- 78 - 70 - 66 - - ND mg/L 01/30/13 -- - -- 32 - 140 - 36 - - ND mg/L 07/15/13 -- - -- 56 - 250 - 48 - - ND mg/L 01/27/14 -- - -- 52 - 130 - 40 - - ND mg/L 07/14/14 -- - -- 34 - 68 - 48 - - ND mg/L 01/20/15 10 - -- 46 - 200 - 58 - - -- mg/L 07/23/15 50 - -- 52 - 88 - 68 - - -- mg/L 01/12/16 50 - -- 72 - 300 - NO - - -- mg/L 08/01/16 50 - -- 56 - 170 - 80 - - NO mg/L 01/17/17 50 - -- NO - 320 - 64 - - NO mg/L 07/26/17 50 - -- NO - 210 - ND - - NO mg/L 02/20/18 50 - -- 66 - 380 - 72 - - NO mg/L 08/08/18 50 50 -- NO - 240 - ND - - NO mg/L 01/15/19 50 50 -- 60 - 520 -- 110 - - NO (Verification Event) mg/L 02/21/19 50 50 -- -- - 690 -- -- - - NO mg/L 08/15/19 50 50 -- ND -- 270 -- 110 - - NO mg/L 01/13/20 50 50 -- 82 -- 660 -- 90 -- - NO mg/L 08/10/20 50 50 -- ND -- 410 -- 160 -- - NO mg/L 01/26/21 50 50 -- 70 -- 550 -- 240 -- - NO mg/L 08/27/21 50 50 -- 76 -- -- 1200 -- 100 - NO (Verification Event) mg/L 10/08/21 50 50 -- -- -- -- 1200 -- -- - NO mg/L 02/09/22 50 50 -- 64 -- -- 1400 -- 86 -- NO m /L 08/15/22 50 50 ND 1600 110 NO \\til) GOLDER Page 8 of 9 November 2022 Table 9 Project No. GL21456818 Summary of Detected Constituents in Groundwater for the C&D Landfill Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells Assessment Monitoring Detected Monitoring Units Sample Date MDL MRL SWS Reporting Point Blanks Upgradient Downgradlent Constituents/Analytes Limit MW-17 MW-18 MW-18R MW-118R2 MW-19 MW-19R PWS-1 Sulfate mg/L 01/31/07 -- - -- ND 1.3 J - - 1.5 J - - ND NC 2L = 250 mg/L mg/L 07/12/07 -- - -- 0.91 1.6 - - 1.2 - - ND No EPA MCL mg/L 08/06/07 -- - -- - - 3.7 B - - - - 3.2 J mg/L 01/17/08 -- - 250 1.0 J - 0.99 J - 1.1 J - - ND mg/L 07/30/08 -- - 250 1.6 J - 2.4 J - 1.5 J -- - ND mg/L 01/22/09 -- - 250 ND - 2.7 J - 2.2 J -- - ND mg/L 07/14/09 -- - 250 ND - 2.9 J - 3.2 J -- - ND mg/L 01/07/10 -- - 250 ND - 2.6 J - 2.5 J -- - ND mg/L 07/20/10 -- - 250 ND - 3.0 J - 2.8 J -- - ND mg/L 01/31/11 -- - 250 1.8 J - 3.4 J - 3.1 J -- - ND mg/L 07/18/11 -- - 250 1.7 J - 3.6 J -- 2.5 J -- - ND mg/L 01/25/12 -- - 250 1.4 J - 7.4 J -- 2.7 J -- - ND mg/L 07/19/12 -- - 250 2 J - 9.2 J -- 2.4 J -- - ND mg/L 01/30/13 -- - 250 1.7 J - 12 J -- 2.8 J -- - ND mg/L 07/15/13 -- - 250 1.6 B - 70 J -- 4.1 B -- - 1.5 J mg/L 01/27/14 -- - 250 ND - 33 J -- 4 J -- - ND mg/L 07/14/14 -- - 250 ND - 21 J -- ND -- - ND mg/L 01/20/15 2.9 - 250 ND - 63 J -- ND -- - -- mg/L 07/23/15 2.9 - 250 ND - 16 J - ND - - -- mg/L 01/12/16 2.9 - 250 ND - - - 5 J - - -- mg/L 01/12/16 2.9 - 250 - - 110 J - - - - -- mg/L 08/01/16 0.07 - 250 0.12 J - 48 J - 1 J - - ND mg/L 01/17/17 2.9 - 250 ND - 110 J - ND - - ND mg/L 07/26/17 2.9 - 250 ND - 69 J - ND - - ND mg/L 02/20/18 2.9 - 250 ND - - - 3 J - - ND mg/L 02/20/18 5.8 - 250 - - 110 J - - - - ND mg/L 08/08/18 2.9 5 -- ND - 87 - 3 J - - ND mg/L 01/15/19 2.9 5 -- ND - 170 - 6.8 - - ND (Verification Event) mg/L 02/21/19 2.9 5 -- -- - 240 - - - - ND mg/L 08/15/19 2.9 5 -- ND - 15 - 6.5 - - ND mg/L 01/13/20 2.9 5 -- ND - 210 - 6.3 - - ND mg/L 08/10/20 2.9 5 -- ND - 100 - 7.3 - - ND mg/L 01/26/21 2.9 5 -- ND - 160 - 7.4 - - ND mg/L 08/27/21 2.9 5 -- ND - - 270 - ND - ND mg/L 02/09/22 2.9 5 -- ND - - 290 - ND - ND mg/L 08/15/22 2.9 5 ND 290 ND ND Total Alkalinity as CaCO3 mg/L 01/31/07 -- - -- 32 38 - - 22 -- - ND No Standard mg/L 07/12/07 -- - -- 16 B 49 - - 26 B -- - 6.4 J No EPA MCL mg/L 08/06/07 -- - -- -- - 6.0 - - - - -- mg/L 01/17/08 -- - -- 9.8 J - 26 - 25 - - ND mg/L 07/30/08 -- - -- 18 B - 27 B - 24 B - - 8.6 J mg/L 01/22/09 -- - -- 24 - 26 - 29 - - ND mg/L 07/14/09 -- - -- 11 J - 22 - 26 - - ND mg/L 01/07/10 -- - -- 8.7 J - 22 - 23 - - ND mg/L 07/20/10 -- - -- 11 J - 33 - 26 - - ND mg/L 01/31/11 -- - -- 18 - 29 - 14 J - - ND mg/L 07/18/11 -- - -- ND - 25 - 23 - - ND mg/L 01/25/12 -- - -- 12 - 26 - 17 - - ND mg/L 07/19/12 -- - -- 14 - 33 - 21 - - ND mg/L 01/30/13 -- - -- 27 - 33 - 24 - - ND mg/L 07/15/13 -- - -- 31 - 25 - 49 - - ND mg/L 01/27/14 -- - -- 40 - 37 - 39 - - ND mg/L 07/14/14 -- - -- 17 - 43 - 24 - - ND mg/L 01/20/15 14 - -- 34 - 61 - 38 - - -- mg/L 07/23/15 14 - -- 37 - 47 - 43 - - -- mg/L 01/12/16 14 - -- 34 - 110 - 24 - - -- mg/L 08/01/16 14 - -- 35 - 90 - 48 - - ND mg/L 01/17/17 14 - -- 42 - 130 - 44 - - ND mg/L 07/26/17 14 - -- 34 - 91 - 41 - - ND mg/L 02/20/18 14 - -- 29 - 130 - 29 - - ND mg/L 08/08/18 14 15 -- 35 - 120 - 32 - - ND mg/L 01/15/19 14 15 -- 25 - 190 - 32 - - ND (Verification Event) mg/L 02/21/19 14 15 -- - - 250 - - - - ND mg/L 08/15/19 14 15 -- 25 - 85 - 82 - - ND mg/L 01/13/20 14 15 -- 37 - 240 -- 42 - -- ND mg/L 08/10/20 14 15 -- 16 -- 150 -- 110 -- -- ND mg/L 01/26/21 14 15 -- 15 -- 170 -- 100 -- -- ND mg/L 08/27/21 14 15 -- 22 -- -- 550 -- 54 -- ND mg/L 02/09/22 14 15 -- 20 -- -- 750 -- 61 -- ND mg/L 08/15/22 14 15 22 940 65 ND Notes: ug/L = micrograms per liter mg/L = milligrams per liter S.U. = Standard Units NTU = Nephelometric Turbidity Units mV = millivolts ND = Not detected at the stated reporting limit pS/cm = microsiemens per centimeter --= no data available or not established B = blank -qualified result J = Prior to the August 2018 event, J flags are estimated values below the SWS Reporting limit. Beginning with the August 2018 event, J flags are estimated values between MDL and MRL. Blanks = field, trip and method blanks Shaded = Concentrations above the current NC 2L or Solid Waste Section Groundwater Protection Standards have been shaded SWS Reporting Limit = NCPQL prior to 2007 and NCSWSL starting in 01/31/07 MDL = Laboratory method detection limit MRL = Laboratory method reporting limit 1) Historical data prior to September 2006 provided by Rowan County. 2) MW-18 was replaced by MW-18R after the July 2007 sampling event. 3) The following dilutions were noted for the August 2022 event: antimony and thallium (2x) all wells; sulfate, chloride and alkalinity at MW-18R (5x). Monitoring Wells MW-18R2 and MW-19R were installed on May 13-14, 2021 4) Pore Water Sample Point (PWS-1) was added as part of 2022 Assessment Monitoring Work Plan \\til) GOLDER Page 9 of 9 November 2022 Project No. GL21456818 Table 10 Summary of C&D Landfill Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells SWS Reporting Upgradient D-ngradient Detected Monitoring DetecConstited MoAnalytes Units Sample Date PWS-1 Limit MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R pH S.U. 11/04/05 -- 6.41 5.46 - - 5.22 - - (field) S.U. 12/12/05 -- 6.50 5.50 - - 5.40 - - S.U. 12/13/05 -- 6.42 5.70 - - 5.50 - - S.U. 12/22/05 -- 6.51 5.65 - - 5.60 - - S.U. 12/30/05 -- 6.30 5.65 - - 5.20 - - S.U. 09/26/06 -- 5.89 5.30 - - 5.28 - - S.U. 01/31/07 -- 6.54 6.21 - - 5.41 - - S.U. 07/12/07 -- 6.19 5.51 - - 5.86 - - S.U. 08/06/07 -- - - 5.25 - - - - S.U. 01/17/08 -- 6.05 - 6.30 - 6.56 - - S.U. 07/30/08 -- 6.26 - 5.69 - 7.18 - - S.U. 01/22/09 -- 6.57 - 5.09 - 5.64 - - S.U. 07/14/09 -- 6.56 - 5.45 - 5.72 - - S.U. 01/07/10 -- 6.51 - 5.98 - 5.81 - - S.U. 07/20/10 -- 6.51 - 5.86 - 5.42 - - S.U. 01/31/11 -- 5.46 - 4.90 - 4.96 - - S.U. 07/18/11 -- 5.60 - 4.86 - 5.00 - - S.U. 01/25/12 -- 5.84 - 5.04 - 5.27 - - S.U. 07/17/12 -- 5.93 - 5.25 - 5.19 - - S.U. 01/30/13 -- 5.61 - 5.11 - 4.82 - - S.U. 07/15/13 -- 4.97 - 5.14 - 4.21 - - S.U. 01/27/14 -- 5.76 - 5.32 - 5.42 - - S.U. 07/14/14 -- 5.79 - 5.21 - 5.35 - - S.U. 01/20/15 -- 4.91 - 5.18 - 4.66 - - S.U. 07/23/15 -- 5.02 - 4.49 - 4.57 - - S.U. 01/12/16 -- 5.24 - 5.37 - 4.90 - - S.U. 01/12/16 -- 5.24 - 5.37 - 4.90 - - S.U. 08/01/16 -- 5.15 - 5.16 - 5.00 - - S.U. 01/17/17 -- 5.44 - 5.37 - 5.12 - - S.U. 07/24/17 -- 5.18 - 5.13 - 5.29 - - S.U. 02/20/18 -- 5.31 - 5.55 - 5.18 - - S.U. 08/08/18 -- 5.76 - 5.62 - 5.29 - - S.U. 01/16/19 -- 5.79 - 5.99 - 5.43 - - (Verification) S.U. 02/21/19 -- - - 6.21 - - - - S.U. 08/15/19 -- 5.60 - 5.22 - 5.51 - - (Verification) S.U. 10/03/19 -- - - 5.29 - 5.49 - - S.U. 01/13/20 -- 5.59 - 5.97 - 5.43 - - S.U. 08/10/20 -- 5.51 - 5.59 - 5.46 - - (verification) S.U. 10/19/20 -- - - 5.49 - 5.41 - - S.U. 01/26/21 -- 5.51 - 5.46 - 5.32 - - S.U. 08/27/21 -- 5.55 - - 6.25 - 5.72 - (Verification) S.U. 10/08/21 -- - - - 6.06 - - - S.U. 02/09/22 -- 5.74 - - 6.31 - 5.64 6.12 S.U. 08/15/22 -- 5.74 - - 6.21 - 5.71 - erification S.U. 10/05/22 5.60 Specific Conductivity pS/cm 11/04/05 -- 195 155 - - 150 - - (feld) PS/cm 12/12/05 -- 210 140 - - 145 - - pS/cm 12/13/05 -- 190 125 - - 140 - - pS/cm 12/22/05 -- 200 105 - - 130 - - pS/cm 12t30105 -- 190 160 - - 145 - - pS/cm 09/26/06 -- 125 80 - - 84 - - pS/cm 01/31/07 -- 162 125 - - 95 - - pS/cm 07/12/07 -- 99 124 - - 97 - - pS/cm 08/06/07 -- - - 87 - - - - pS/cm 01/17/08 -- 154 - 92 - 138 - - pS/cm 07/30/08 -- 147 - 97 - 141 - - pS/cm 01/22/09 -- 132 - 99 - 94 - - pS/cm 07/14/09 -- 102 - 94 - 113 - - pS/cm 01/07/10 -- 101 - 103 - 96 - - pS/cm 07/20/10 -- 93 - 109 - 103 - - pS/cm 01/31/11 -- 85 - 118 - 95 - - pS/cm 07/18/11 -- 86 - 125 - 103 - - pS/cm 01/25/12 -- 84 - 177 - 98 - - pS/cm 07/17/12 -- 72 - 110 - 89 - - pS/cm 01/30/13 -- 75 - 230 - 78 - - pS/cm 07/15/13 -- 85 - 380 - 91 - - pS/cm 01/27/14 -- 113 - 291 - 118 - - pS/cm 07/14/14 -- 95 - 197 - 132 - - pS/cm 01/20/15 -- 96 - 304 - 102 - - pS/cm 07/23/15 -- 91 - 165 - 119 - - pS/cm 01/12/16 -- 100 - 552 - 78 - - pS/cm 01/12/16 -- 100 - 552 - 78 - - pS/cm 08/01/16 -- 103 - 345 - 149 - - pS/cm 01/17/17 -- 97 - 535 - 116 - - pS/cm 07/24/17 -- 101 - 392 - 117 - - pS/cm 02/20118 -- 107 - 616 - 103 - - pS/cm 08/08/18 -- 110 - 503 - 112 - - pS/cm 01/16/19 -- 97 - 805 - 102 - - (Verification) PS/cm 02/21/19 -- - - 1098 - - - - pS/cm 08/15/19 -- 99 - 444 - 227 - - (Verification) PS/cm 10/03/19 -- - - 581 - 189 - - pS/cm 01/13/20 -- 109 - 940 - 135 - - pS/cm 08/10/20 -- 70 - 737 - 379 - - (Verification) PS/cm 10/19/20 -- - - 811 - 279 - - pS/cm 01/26/21 -- 101 - 858 - 433 - - pS/cm 08/27/21 -- 136 - - 1657 - 140.1 - (Verification) pS/cm 10/08/21 -- - - - 1410 - - - pS/cm 02/09/22 -- 91 - - 2166 - 163.7 930 PS/cm 08/15/22 -- 89 - - 2459 - 158.2 - erificationPS/cm 10/05/22 144.5 NNNI) GOLDER Page 1 of 3 November 2022 Project No. GL21456818 Table 10 Summary of C&D Landfill Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells SWS Reporting Upgradient D-ngradient Detected Monitoring DetecConstited MoAnalytes Units Sample Date PWS-1 Limit MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R Temperature °C 11/04/05 -- 19.60 18.60 - - 18.20 - - (field) °C 12/12/05 -- 18.40 18.60 - - 18.30 - - °C 12/13/05 -- 18.60 18.20 - - 18.20 - - °C 12/22/05 -- 18.80 18.40 - - 18.20 - - °C 12/30/05 -- 18.40 18.60 - - 18.40 - - °C 09/26/06 -- 19.40 21.90 - - 20.90 - - °C 01/31/07 -- 12.60 12.70 - - 10.60 - - °C 07/12/07 -- 20.13 21.05 - - 21.59 - - °C 08/06/07 -- - - 25.10 - - - - °C 01/17/08 -- 12.45 - 12.26 - 8.01 - - °C 07/30/08 -- 18.73 - 18.22 - 21.17 - - °C 01/22/09 -- 9.27 - 13.89 - 9.25 - - °C 07/14/09 -- 17.72 - 16.15 - 18.17 - - °C 01/07/10 -- 12.43 - 13.69 - 10.35 - - °C 07/20/10 -- 19.96 - 19.87 - 18.86 - - °C 01/31/11 -- 12.35 - 13.82 - 10.47 - - °C 07/18/11 -- 21.92 - 19.21 - 20.11 - - °C 01/25/12 -- 15.58 - 16.91 - 12.73 - - °C 07/17/12 -- 22.93 - 21.12 - 20.76 - - °C 01/30/13 -- 16.67 - 17.12 - 14.59 - - °C 07/15/13 -- 20.66 - 17.86 - 19.81 - - °C 01/27/14 -- 14.7 - 15.9 - 11.5 - - °C 07/14/14 -- 19.7 - 18.2 - 17.5 - - °C 01/20/15 -- 14.6 - 16.4 - 12.9 - - °C 07/23/15 -- 20.9 - 17.7 - 17.2 - - °C 01/12/16 -- 12.5 - 16.1 - 12.3 - - °C 01/12/16 -- 12.5 - 16.1 - 12.3 - - °C 08/01/16 -- 21.4 - 18.5 - 19.2 - - °C 01/17/17 -- 15.3 - 17.7 - 14.5 - - °C 07/24/17 -- 20.1 - 19.1 - 19.5 - - °C 02/20/18 -- 15.5 - 15.8 - 11.5 - - °C O8/08/18 -- 20.6 - 19.6 - 19.4 - - °C 01/16/19 -- 14.2 - 14.9 - 10.8 - - (Verification) °C 02/21/19 -- - - 14.5 - - - - °C 08/15/19 -- 22.0 - 21.3 - 21.5 - - (Verification) °C 10/03/19 -- - - 25.6 - 21.1 - - °C 01/13/20 -- 16.0 - 16.5 - 13.8 - - °C 08/10/20 -- 20.1 - 21.3 - 21.9 - - (Verification) °C 10/19/20 -- - - 20.1 - 18.9 - - °C 01/26/21 -- 13.8 - 14.8 - 13.0 - - °C 08/27/21 -- 20.6 - - 19.5 - 16.6 - (Verification) °C 10/08/21 -- - - - 17.2 - - - °C 02/09/22 -- 14.3 - - 15.4 - 14.3 16.2 °C 08/15/22 -- 18.4 - - 17.2 - 16.8 - erification °C 10/05/22 16.1 Turbidity NTU 12/30/05 -- - - - - - - - (field) NTU 09/26/06 -- 39.3 243 - - 45.3 - - NTU 01/31/07 -- 30.2 >1000 - - 819 - - NTU 07/12/07 -- 0 0 - - 0 - - NTU 08/06/07 -- - - 55.7 - - - - NTU 01/17/08 -- 0.48 - 50.9 - 6.39 - - NTU 07/30/08 -- 38.2 - 73.3 - 24.7 - - NTU 01/22/09 -- 2.41 - 14.9 - 3.59 - - NTU 07/14/09 -- 1.86 - 18.8 - 8.01 - - NTU 01/07/10 -- 2.89 - 24.6 - 249 - - NTU 07/20/10 -- 1.52 - 56.1 - 10.8 - - NTU 01/31/11 -- 0.49 - 1.58 - 1.71 - - NTU 07/18/11 -- 0.31 - 3.86 - 2.58 - - NTU 01/25/12 -- 1.31 - 1.65 - 3.12 - - NTU 07/17/12 -- 4.16 - 3.55 - 5.33 - - NTU 01/30/13 -- 3.64 - 1.76 - 2.42 - - NTU 07/15/13 -- 2.19 - 1.16 - 1.99 - - NTU 01/27/14 -- 0.14 - 1.13 - 1.45 - - NTU 07/14/14 -- 2.42 - 1.65 - 1.93 - - NTU 01/20/15 -- 0.51 - 1.39 - 0.82 - - NTU 07/23/15 -- 0.70 - 1.30 - 0.55 - - NTU 01/12/16 -- 3.86 - 0.81 - 4.44 - - NTU 01/12/16 -- 3.86 - 0.81 - 4.44 - - NTU 08/01/16 -- 2.10 - 3.45 - 1.49 - - NTU 01/17/17 -- 0.73 - 0.80 - 1.94 - - NTU 07/24/17 -- 1.92 - 2.23 - 0.81 - - NTU 02/20/18 -- 0.27 - 0.81 - 1.54 - - NTU 08/08/18 -- 1.30 - 1.49 - 6.59 - - NTU 01/16/19 -- 1.92 - 3.50 - 8.71 - - (Verification) NTU 02/21/19 -- - - 9.11 - - - - NTU 08/15/19 -- 0.79 - 3.62 - 8.98 - - (Verification) NTU 10/03/19 -- - - 0.60 - 19.1 - - NTU 01/13/20 -- 1.28 - 6.84 - 34.9 - - NTU 08/10/20 -- 1.12 - 22.50 - 9.46 - - (Verification) NTU 10/19/20 -- - - 115 - 23.3 - - NTU 01/26/20 -- 6.10 - 7.98 - 8.79 - - NTU 08/27/21 -- 3.02 - - 9.36 - 2.36 - (Verification) NTU 10/08/21 -- - - - 9.35 - - - NTU 02/09/22 -- 0.10 - - 8.29 - 0.66 168 NTU 08/15/22 -- 0.68 - - 8.69 - 19.7 - erification NTU 1 10/05/22 3.48 NNNI) GOLDER Page 2 of 3 November 2022 Project No. GL21456818 Table 10 Summary of C&D Landfill Field Parameters Rowan County Landfill (Active MSW and Closed C&D Facilities) Permit 80-03 C&D Monitoring Wells SWS Reporting Upgradient D-gradient Detected MonitMonitoring tec ectAnalytes Units Sample Date PWS-1 Ce Limit MW-17 MW-18 MW-18R MW-18R2 MW-19 MW-19R Oxygen Reduction Potential mV 12/30/05 -- - - - - - - - (field) mV 9/26/06 -- 185 165 - - 196 - - mV 1/31/07 -- 210 177 - - 185 - - mV 7/12/07 -- - - - - - - - mV 8/6107 -- - - - - - - - mV 07/20/10 -- - - - - - - - mV 01/31/11 -- 240.2 - 269.9 - 271.8 - - mV 07/18/11 -- 132.0 - 132.6 - 142.7 - - mV 01/25/12 -- -125.1 - -136.5 - -151.9 - - mV 07/17/12 -- 16.4 - 30.2 - 34.0 - - mV 01/30/13 -- 182.0 - 194.7 - 201.8 - - mV 07/15/13 -- 179.3 - 145.2 - 218.5 - - mV 01/27/14 -- 167.1 - 43.7 - 149.6 - - mV 07/14/14 -- 212.7 - 202.3 - 277.4 - - mV 01/20/15 -- 258.9 - 181.8 - 242.0 - - mV 07/23/15 -- 233.7 - 242.8 - 270.9 - - mV 01/12/16 -- 228.1 - 200 - 353.2 - - mV 01/12/16 -- 228.1 - 200 - 353.2 - - mV 08/01/16 -- 205.9 - 195.4 - 309.2 - - mV 01/17/17 -- 288.2 - 236.4 - 306.0 - - mV 07/24/17 -- 177.1 - 220.7 - 184.8 - - mV 02/20/18 -- 296.1 - 348.1 - 403.5 - - mV 08/08/18 -- 150.6 - 179.4 - 194.0 - - mV 01/16/19 -- 169.5 - 51.5 - 371.6 - - (Verification) mV 02/21/19 -- - - 159.6 - - - - mV 08/15/19 -- 275.0 - 191.0 - 146.3 - - (Verification) mV 10/03/19 -- - - 149.3 - 153.7 - - mV 01/13/20 -- 319.9 - 314.7 - 301.6 - - mV 08/10/20 -- -88.6 - -271.8 - -160.8 - - (Verification) mV 10/19/20 -- - - 199.5 - 85.3 - - mV 01/26/21 -- 98.0 - 96.7 - 66.5 - - mV 08/27/21 -- 105.2 - - -5.7 - 165.8 - (Verification) mV 10/08/21 -- - - - 3.9 - - - mV 02/09/22 -- 202.5 - - 17.9 - 203.6 28.2 mV 08/15/22 -- -21.4 - - -243.9 - 213.4 - enfication S.U. 10/05/22 103.5 Dissolved Oxygen mg/L 12/30/05 -- - - - - - - - (field) mg/L 9/26/06 -- - - - - - - - mg/L 1/31/07 -- 10.6 10.5 - - 7.6 - - mg/L 7/12/07 -- - - - - - - - mg/L 07/20/10 -- - - - - - - - mg/L 01/31/11 -- 8.28 - 1.01 - 3.05 - - mg/L 07/18/11 -- 3.99 - 1.17 - 1.79 - - mg/L 01/25/12 -- 6.51 - 0.47 - 2.12 - - mg/L 07/17/12 -- 7.30 - 2.95 - 4.98 - - mg/L 01/30/13 -- 3.33 - 2.25 - 5.18 - - mg/L 07/15/13 -- 3.64 - 3.23 - 2.71 - - mg/L 01/27/14 -- 1.43 - 0.72 - 3.97 - - mg/L 07/14/14 -- 1.85 - 0.40 - 0.57 - - mg/L 01/20/15 -- 4.71 - 0.78 - 1.93 - - mg/L 07/23/15 -- 2.24 - 0.41 - 3.28 - - mg/L 01/12/16 -- 1.35 - 1.44 - 4.19 - - mg/L 01/12/16 -- 1.35 - 1.44 - 4.19 - - mg/L 08/01/16 -- 1.57 - 0.87 - 0.91 - - mg/L 01/17/17 -- 3.52 - 0.37 - 4.11 - - mg/L 07/24/17 -- 0.73 - 0.38 - 0.47 - - mg/L 02/20/18 -- 0.57 - 0.35 - 4.57 - - mg/L 08/08/18 -- 1.98 - 0.42 - 2.48 - - mg/L 01/16/19 -- 4.08 - 3.36 - 2.49 - - (Venfication) mg/L 02/21/19 -- - - 1.42 - - - - mg/L 08/15/19 -- 2.04 - 0.20 - 0.15 - - mg/L 10/03/19 -- - - 0.61 - 1.60 - - mg/L 01/13/20 -- 2.93 - 1.57 - 2.97 - - mg/L 08/10/20 -- 0.36 - 0.13 - 0.19 - - (Verification) mg/L 10/19/20 -- - - 0.21 - 0.15 - - mg/L 01/26/21 -- 1.24 - 0.51 - 0.37 - - mg/L 08/27/21 -- 1.15 - - 0.17 - 0.29 - (Verification) mg/L 10/08/21 -- - - - 0.09 - - - mg/L 02/09/22 -- 6.84 - - 0.43 - 5.93 4.96 mg/L 08/15/22 -- 1.98 - - 0.56 - 1.17 - erification mg/L 10/05/22 2.09 Notes: mg/L = milligrams per liter -- = no data available S.U. = Standard Units NTU = Nephelometric Turbidity Units ND = Not detected at the stated reporting limit uS/cm= microaiemens per centimeter NNNI) GOLDER Page 3 of 3 November 18, 2022 GL21456818.001 Drawing XXNI) GOLDER CURRRENT LANDFILL ENTRANCE EXISTING FORMER LANDFILL SCALE HOUSE SEDIMENT BASIN ENTRANCE EXISTING SEDIMENT' .I BASIN QQ MW-1 1 I 61 MMW-6A 95.00 I I I I 6g0 I MW-200 I I 682.01 1I I IM tr m I / � i Qtoo � 01 r0 I t �- I MMW-9 4 I MW-25' 000 � ' 669.35 6'� , ° \ ! I I,, MMW-10 IMW-3 4 I W-34A 667.13 666.991 PZ 5 MMW-11 I 1 MW-33 659.99 (Ol6 i MMW-12 IL ool S�Go/ J ij 011 EXISTING SEDIMENT BASIN 250 0 250 500 SCALE FEET LEGEND NOTES 1. TOPOGRAPHIC CONTOUR INTERVAL = 2 FEET. 2. GROUNDWATER SURFACE CONTOUR INTERVAL = 10 FEET. 3. GROUNDWATER ELEVATIONS MEASURED ON AUGUST 15, 2022. 4. GROUNDWATER CONTOURS ARE BASED ON LINEAR INTERPOLATION BETWEEN AND EXTRAPOLATION FROM KNOWN DATA, TOPOGRAPHIC CONTOURS, AND KNOWN FIELD CONDITIONS. THEREFORE, GROUNDWATER CONTOURS MAY NOT REFLECT ACTUAL GROUNDWATER CONDITIONS. 5. GROUNDWATER CONTOUR LINES SHOW THE WATER TABLE SHAPE AND ELEVATION. THESE CONTOURS ARE INFERRED LINES FOLLOWING THE GROUNDWATER SURFACE AT A CONSTANT ELEVATION ABOVE SEA LEVEL. THE GROUNDWATER FLOW DIRECTION IS GENERALLY PERPENDICULAR TO THE GROUNDWATER SURFACE CONTOURS, SIMILAR TO THE RELATIONSHIP BETWEEN SURFACE WATER FLOW AND TOPOGRAPHIC CONTOURS. 6. SURFACE WATER MONITORING POINT SW-1 IS APPROXIMATELY 550 FEET OFF THE MAPPING LIMITS SHOWN AND IS COLLECTED FROM SECOND CREEK. 7. MONITORING WELLS MW-18R, MW-19, MW-23A, MW-27A, MW-28 AND MW-6 ARE UTILIZED FOR WATER LEVEL MONITORING ONLY. 8. THE LOCATION OF THE FRENCH DRAIN MONITORING POINT IS APPROXIMATE. 9. MW-28R WAS INSTALLED JULY 11, 2017 TO REPLACE MW-28. MW-28 WILL CONTINUE TO BE UTILIZED FOR WATER LEVEL MONITORING. 10. MW-18R2 AND MW-19R WERE INSTALLED IN MAY 2021 TO REPLACE MW-18R AND MW-19, RESPECTIVELY. 11. MW-29A, MW-30, MW-31, MW-32, MW-33 ARE NOT CURRENTLY PART OF THE COMPLIANCE NETWORK. 12. GROUNDWATER ELEVATIONS FROM WELLS DESIGNATED WITH "A" IN THE NAME WERE NOT USED FOR CONSTRUCTION OF GROUNDWATER CONTOURS. REFERENCE 1. EXISTING CONDITIONS INSIDE OF DASHED LINE COMPILED BY CARTOGRAPHIC AERIAL MAPPING, INC. USING PHOTOGRAMMETRIC METHODS, FROM AERIAL PHOTOGRAPHY DATED MAY 9, 2021. EXISTING CONDITIONS OUTSIDE OF DASHED LINE PROVIDED BY S&ME ENGINEERING, INC., DATE UNKNOWN. 2. PROPERTY BOUNDARY TAKEN FROM CAD FILE TITLED, "WELLS.DWG," PROVIDED BY HDR INC. 3. PIEZOMETER LOCATIONS AND GW LEVEL PROVIDED BY HDR INC. 4. PROPOSED BASE GRADES FOR PHASE 4/5 PROVIDED BY HDR INC. — — FACILITY BOUNDARY CLIENT — — — — — APPROXIMATE LIMITS OF WASTE ROWAN COUNTY, NORTH CAROLINA EXISTING TOPOGRAPHIC CONTOURS (2' INTERVALS) J 1 GROUNDWATER SURFACE CONTOURS I PROJECT 1 APPROXIMATE GROUNDWATER FLOW SEGMENT USED TO ROWAN COUNTY ACTIVE AND CLOSED LANDFILLS CALCULATE GRADIENT PERMIT No. 80-03 I 0MW-7 EXISTING GROUNDWATER MONITORING WELL WITH ROWAN COUNTY, NORTH CAROLINA 646.42 GROUNDWATER ELEVATION �MW-29A PROPOSED GROUNDWATER MONITORING WELL GROUNDWATER CONTOUR MAP o SURFACE WATER MONITORING POINT AUGUST 15, 2022 1 COMPLIANCE METHANE MONITORING POINT CONSULTANT YYYY-MM-DD 2022-09-21 ASSESSMENT METHANE MONITORING POINT DESIGNED NTT Ieo ® FRENCH DRAIN MONITORING POINT %% %) GOLDER PREPARED SIB TO SW-1 O PWS-1 PORE WATER SAMPLE LOCATION REVIEWED CD t (SEE NOTE 6) PZ 5-1 PIEZOMETER LOCATION APPROVED RPK /11 I PROPOSED METHANE MONITORING POINT PROJECT NO. REV. FIGURE G L21-456818.001 0 1 IL 0 01 RS iMMEE WOMM,' IMAEM-1--11111I APPENDIX A Groundwater and Surface Water Sampling Logs XXNI) GOLDER 01 RS iMMEEMINNI, IMAEM-1- E1IIISI APPENDIX B August 2022 and October 2022 Groundwater and Surface Water Certificate -of -Analysis, Chain -of - Custodies, and Lab Data Reviews XXNI) GOLDER 2�SQ pCCgF ENCO Laboratories 9e0 Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Tuesday, August 30, 2022 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 21456818.102, Project Name/Desc: Rowan County Active Landfills ENCO Workorder(s): CF11228 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, August 19, 2022. 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 6H PROJECT NARRATIVE Date: August 30, 2022 Client: Golder Associates, Inc. (G0007) Project: Rowan County Active Landfills Lab ID: CF11228 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The 8260D Continuing Calibration Verification (CCV) exhibited a high bias for lodomethane; however, this analyte was not detected in the associated samples. The spike recoveries for 1,4-Dioxane were outside control limits for the MS sample, the precision between duplicate spikes of 1,4-Dioxane exceeded acceptance criteria. The QC batch was approved based on acceptable LCS recovery of this analyte. An LCS and LCSD were analyzed in place of the MS and MSD for the 8260D SIM analysis. Quality Control Remarks The 8260D surrogate spike recovery of Dibromofluoromethane was outside of acceptance criteria. The samples were approved based on the recoveries of other surrogate standards. Other Comments Acetone and Methylene chloride, common laboratory contaminants, were detected in the Field Blank; however, this analyte was not detected in the associated samples, reducing the impact of the deviation. All samples received under this work order arrived in acceptable conditions. The samples were not checked for chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Amanda Gaines Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 68 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-MW3 Lab ID: CF11228-01 Sampled: 08/16/22 13:27 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:15 EPA 6020E EPA 3005A 02/12/23 08/21/22 18:04 08/26/22 09:54 EPA 8260D EPA 503013_MS 08/30/22 08/22/22 17:01 08/22/22 23:49 Client ID: 8003-MW7 Lab ID: CF11228-02 Sampled: 08/16/22 15:21 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Preo Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:17 EPA 6020E EPA 3005A 02/12/23 08/21/22 18:04 08/26/22 10:01 EPA 8260D EPA 5030B_MS 08/30/22 08/22/22 17:01 08/23/22 00:18 Client ID: 8003-MW9 Lab ID: CF11228-03 Sampled: 08/16/22 12:34 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:20 EPA 6020B EPA 3005A 02/12/23 08/21/22 18:04 08/26/22 10:05 EPA 8260D EPA 503013_MS 08/30/22 08/22/22 17:01 08/23/22 00:47 Client ID: 8003-MW11 Lab ID: CF11228-04 Sampled: 08/17/22 10:27 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/23 08/21/22 18:01 08/24/22 11:22 EPA 6020E EPA 3005A 02/13/23 08/21/22 18:04 08/26/22 10:10 EPA 8260D EPA 503013_MS 08/31/22 08/22/22 17:01 08/23/22 01:16 Client ID: 8003-MW12 (MS/MSD) Lab ID: CF11228-05 Sampled: 08/17/22 12:15 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/23 08/21/22 18:01 08/24/22 10:55 EPA 6020E EPA 3005A 02/13/23 08/21/22 18:04 08/26/22 08:56 EPA 8260D EPA 503013_MS 08/31/22 08/22/22 17:01 08/22/22 23:21 Client ID: 8003-MW13 Lab ID: CF11228-06 Sampled: 08/18/22 13:25 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/14/23 08/21/22 18:01 08/24/22 11:24 EPA 6020B EPA 3005A 02/14/23 08/21/22 18:04 08/26/22 10:14 EPA 8260D EPA 5030B_MS 09/01/22 08/22/22 17:01 08/23/22 01:44 Client ID: 8003-MW16 Lab ID: CF11228-07 Sampled: 08/16/22 12:25 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:27 EPA 6020B EPA 3005A 02/12/23 08/21/22 18:04 08/26/22 10:18 EPA 8260D EPA 503013_MS 08/30/22 08/19/22 15:25 08/19/22 23:54 Client ID: 8003-MW20 Lab ID: CF11228-08 Sampled: 08/18/22 10:15 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/14/23 08/21/22 18:01 08/24/22 11:29 EPA 6020E EPA 3005A 02/14/23 08/21/22 18:04 08/26/22 10:23 EPA 8260D EPA 503013_MS 09/01/22 08/22/22 17:01 08/23/22 02:13 Client ID: 8003-MW23 Lab ID: CF11228-09 Sampled: 08/16/22 15:57 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:31 EPA 6020E EPA 3005A 02/12/23 08/21/22 18:04 08/26/22 10:27 EPA 8260D EPA 503013_MS 08/30/22 08/19/22 15:25 08/20/22 00:23 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 68 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-MW24R Lab ID: CF11228-10 Sampled: 08/17/22 09:35 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/23 08/21/22 18:01 08/24/22 11:33 EPA 6020E EPA 3005A 02/13/23 08/21/22 18:04 08/26/22 10:31 EPA 8260D EPA 503013_MS 08/31/22 08/22/22 17:01 08/23/22 02:42 Client ID: 8003-MW25 Lab ID: CF11228-11 Sampled: 08/16/22 14:16 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Preo Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:41 EPA 6020E EPA 3005A 02/12/23 08/21/22 18:04 08/26/22 10:35 EPA 8260D EPA 5030B_MS 08/30/22 08/19/22 15:25 08/20/22 00:52 Client ID: 8003-MW26 Lab ID: CF11228-12 Sampled: 08/17/22 13:24 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 02/13/23 08/21/22 18:01 08/24/22 11:43 EPA 6020B EPA 3005A 02/13/23 08/21/22 18:04 08/26/22 10:49 EPA 8260D EPA 503013_MS 08/31/22 08/22/22 17:01 08/23/22 03:11 Client ID: 8003-MW27 Lab ID: CF11228-13 Sampled: 08/17/22 12:20 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/23 08/21/22 18:01 08/24/22 11:45 EPA 6020E EPA 3005A 02/13/23 08/21/22 18:04 08/26/22 10:53 EPA 8260D EPA 503013_MS 08/31/22 08/22/22 17:01 08/23/22 03:40 Client ID: 8003-MW28R Lab ID: CF11228-14 Sampled: 08/17/22 14:44 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/23 08/21/22 18:01 08/24/22 11:48 EPA 6020E EPA 3005A 02/13/23 08/21/22 18:04 08/26/22 10:57 EPA 8260D EPA 503013_MS 08/31/22 08/22/22 17:01 08/23/22 04:09 Client ID: 8003-French Drain Lab ID: CF11228-15 Sampled: 08/17/22 09:34 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/23 08/21/22 18:01 08/24/22 11:50 EPA 6020B EPA 3005A 02/13/23 08/21/22 18:04 08/26/22 11:01 EPA 8260D EPA 5030B_MS 08/31/22 08/22/22 17:01 08/23/22 04:37 Client ID: 8003-SW1 Lab ID: CF11228-16 Sampled: 08/16/22 16:10 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(sl EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:52 EPA 6020B EPA 3005A 02/12/23 08/21/22 18:04 08/26/22 11:06 EPA 8260D EPA 503013_MS 08/30/22 08/19/22 15:25 08/20/22 01:21 Client ID: 8003-SW2 Lab ID: CF11228-17 Sampled: 08/17/22 11:10 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/23 08/21/22 18:01 08/24/22 11:55 EPA 6020E EPA 3005A 02/13/23 08/21/22 18:04 08/26/22 11:10 EPA 8260D EPA 503013_MS 08/31/22 08/22/22 17:01 08/23/22 05:06 Client ID: 8003-SW3 Lab ID: CF11228-18 Sampled: 08/16/22 15:57 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:57 EPA 6020E EPA 3005A 02/12/23 08/23/22 23:42 08/26/22 14:36 EPA 8260D EPA 503013_MS 08/30/22 08/19/22 15:25 08/20/22 01:50 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 68 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-SW4 Lab ID: CF11228-19 Sampled: 08/16/22 10:36 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/12/23 08/21/22 18:01 08/24/22 11:59 EPA 6020E EPA 3005A 02/12/23 08/23/22 23:42 08/26/22 14:40 EPA 8260D EPA 503013_MS 08/30/22 08/19/22 15:25 08/20/22 02:18 Client ID: 8003-SWS Lab ID: CF11228-20 Sampled: 08/15/22 16:09 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Preo Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/11/23 08/21/22 18:01 08/24/22 12:02 EPA 6020E EPA 3005A 02/11/23 08/23/22 23:42 08/26/22 14:44 EPA 8260D EPA 5030B_MS 08/29/22 08/19/22 15:25 08/20/22 02:47 Client ID: 8003-SWS Lab ID: CF11228-20RE2 Sampled: 08/15/22 16:09 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MIS 08/29/22 08/29/22 11:54 08/29/22 14:11 Client ID: 8003-Field Blank Lab ID: CF11228-21 Sampled: 08/17/22 16:10 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 6010D EPA 3005A 02/13/23 08/23/22 20:33 08/25/22 09:54 EPA 6020E EPA 3005A 02/13/23 08/23/22 23:42 08/26/22 14:58 EPA 8260D EPA 503013_MS 08/31/22 08/22/22 17:01 08/22/22 22:52 EPA 8260D EPA 5030B_MS 08/31/22 08/25/22 00:00 08/25/22 11:03 Client ID: 8003-Field Blank Lab ID: CF11228-21RE1 Sampled: 08/17/22 16:10 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 08/31/22 08/23/22 14:59 08/23/22 22:39 Client ID: 8003-Trip Blank Lab ID: CF11228-22 Sampled: 08/15/22 16:09 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 08/29/22 08/19/22 15:25 08/19/22 21:59 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 68 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-MW3 Lab ID: CF11228-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 88.3 1.10 10.0 ug/L EPA 6010D Cobalt - Total 1.41 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 7.77 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW7 Lab ID: CF11228-02 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 63.9 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.268 J 0.160 1.00 ug/L EPA 6010D Chromium - Total 3.77 J 1.40 10.0 ug/L EPA 6010D Client ID: 8003-MW9 Lab ID: CF11228-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 61.8 1.10 10.0 ug/L EPA 6010D Chromium - Total 2.18 1 1.40 10.0 ug/L EPA 6010D Nickel - Total 5.69 1 2.20 10.0 ug/L EPA 6010D Vanadium - Total 3.85 J 1.40 10.0 ug/L EPA 6010D Client ID: 8003-MWll Lab ID: CF11228-04 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 37.9 1.10 10.0 ug/L EPA 6010D Client ID: 8003-MW32 (MS/MSD) Lab ID: CF11228-05 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 47.8 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.256 J 0.160 1.00 uq/L EPA 6010D I Client ID: 8003-MW33 Lab ID: CF11228-06 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 93.9 1.10 10.0 ug/L EPA 6010D Chromium - Total 2.40 1 1.40 10.0 ug/L EPA 6010D Client ID: 8003-MW36 Lab ID: CF11228-07 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 14.3 1.10 10.0 ug/L EPA 6010D Client ID: 8003-MW20 Lab ID: CF11228-08 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 84.5 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.223 J 0.160 1.00 ug/L EPA 6010D Cadmium - Total 0.422 J 0.360 1.00 ug/L EPA 6010D Cobalt - Total 9.08 J 1.40 10.0 ug/L EPA 6010D Copper - Total 2.72 J 1.60 10.0 ug/L EPA 6010D Zinc - Total 12.5 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW23 Lab ID: CF11228-09 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 180 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.283 J 0.160 1.00 ug/L EPA 6010D Chromium - Total 3.18 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 1.58 J 1.40 10.0 ug/L EPA 6010D Nickel - Total 7.23 J 2.20 10.0 ug/L EPA 6010D Client ID: 8003-MW24R Lab ID: CF11228-10 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 57.4 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.256 J 0.160 1.00 ug/L EPA 6010D Zinc - Total 39.4 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW25 Lab ID: CF11228-11 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 32.2 1.10 10.0 ug/L EPA 6010D Chromium - Total 3.70 1 1.40 10.0 ug/L EPA 6010D Vanadium - Total 8.06 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 6 of C)H (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-MW26 Lab ID: CF11228-12 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 45.9 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.265 J 0.160 1.00 ug/L EPA 6010D Client ID: 8003-MW27 Lab ID: CF11228-13 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 65.2 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.603 J 0.160 1.00 ug/L EPA 6010D Vanadium - Total 2.72 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 6.96 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW28R Lab ID: CF11228-14 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 377 1.10 10.0 ug/L EPA 6010D Beryllium - Total 0.677 1 0.160 1.00 ug/L EPA 6010D Cobalt - Total 3.33 1 1.40 10.0 ug/L EPA 6010D Client ID: 8003-French Drain Lab ID: CF11228-15 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 30.0 1.10 10.0 ug/L EPA 6010D Vanadium - Total 6.94 J 1.40 10.0 ug/L EPA 6010D Client ID: 8003-SW3 Lab ID: CF11228-16 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 48.4 1.10 10.0 ug/L EPA 6010D Vanadium - Total 5.40 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 6.82 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-SW2 Lab ID: CF11228-17 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 85.1 1.10 10.0 ug/L EPA 6010D Chromium - Total 1.66 J 1.40 10.0 ug/L EPA 6010D Cobalt - Total 4.62 J 1.40 10.0 ug/L EPA 6010D Copper - Total 3.25 J 1.60 10.0 ug/L EPA 6010D Lead - Total 3.45 J 3.10 10.0 ug/L EPA 6010D Vanadium - Total 12.2 1.40 10.0 ug/L EPA 6010D Zinc - Total 18.9 4.40 10.0 ug/L EPA 6010D Client ID: 8003-SW3 Lab ID: CF11228-18 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 79.0 1.10 10.0 ug/L EPA 6010D Copper - Total 3.71 1 1.60 10.0 ug/L EPA 6010D Vanadium - Total 6.86 1 1.40 10.0 ug/L EPA 6010D Zinc - Total 25.7 4.40 10.0 ug/L EPA 6010D Client ID: 8003-SW4 Lab ID: CF11228-19 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 57.8 1.10 10.0 ug/L EPA 6010D Vanadium - Total 2.29 J 1.40 10.0 ug/L EPA 6010D Client ID: 8003-SWS Lab ID: CF11228-20 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 69.1 1.10 10.0 ug/L EPA 6010D Cobalt - Total 5.70 J 1.40 10.0 ug/L EPA 6010D Nickel - Total 2.55 J 2.20 10.0 ug/L EPA 6010D Vanadium - Total 1.78 J 1.40 10.0 ug/L EPA 6010D Client ID: 8003-SWS Lab ID: CF31228-20RE2 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 2.6 0.80 2.0 uq/L EPA 8260D Client ID: 8003-Field Blank Lab ID: CF11228-21RE1 Analvte Results Flag MDL PQL Units Method Notes Acetone 20 10 20 ug/L EPA 8260D 0-01 Methylene chloride 0.95 J 0.23 1.0 ug/L EPA 8260D 0-01 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 68 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW1 Lab Sample ID:CF11228-01 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 13:27 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/22/22 23:49 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/22/22 23:49 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/22/22 23:49 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/22/22 23:49 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/22/22 23:49 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW1 Lab Sample ID: CH1228-01 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 13:27 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 111 % 53-136 2H22033 EPA 6260D 08122122 23:49 RKY Dibromofluoromethane 69 1 50.0 139 % 67-129 2H22033 EPA 6260D 08122122 23:49 RKY QS-03 Toluene-d8 56 1 50.0 113 % 59-134 2H22033 EPA 6260D 08122122 23:49 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 09:54 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Barium [7440-39-3]^ 88.3 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:15 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:15 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Cobalt[7440-48-4]^ 1.41 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 09:54 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH Zinc[7440-66-6]^ 7.77 J ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:15 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 9 Of 6H 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW7 Lab Sample ID:CF11228-02 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 15:21 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 00:18 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 00:18 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 00:18 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 00:18 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 00:18 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW7 Lab Sample ID: CH1228-02 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 15:21 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 58 1 50.0 115 % 53-136 2H22033 EPA 6260D 08123122 00:18 RKY Dibromofluoromethane 70 1 50.0 140 % 67-129 2H22033 EPA 6260D 08123122 00:18 RKY QS-03 Toluene-d8 56 1 50.0 112 % 59-134 2H22033 EPA 6260D 08123122 00:18 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 21-121003 EPA 6020B 08/26/22 10:01 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Barium [7440-39-3]^ 63.9 ug/L 1 1.10 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Beryllium [7440-41-7]^ 0.268 J ug/L 1 0.160 1.00 21-121002 EPA 6010D 08/24/22 11:17 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 21-121002 EPA 6010D 08/24/22 11:17 JDH Chromium [7440-47-3]^ 3.77 J ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 21-121003 EPA 6020B 08/26/22 10:01 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 21-121002 EPA 6010D 08/24/22 11:17 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW9 Lab Sample ID:CF11228-03 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 12:34 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 00:47 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 00:47 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 00:47 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 00:47 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 00:47 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW9 Lab Sample ID: CH1228-03 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 12:34 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 55 1 50.0 110 % 53-136 2H22033 EPA 6260D 08123122 00:47 RKY Dibromofluoromethane 70 1 50.0 139 % 67-129 2H22033 EPA 6260D 08123122 00:47 RKY QS-03 Toluene-d8 56 1 50.0 111 % 59-134 2H22033 EPA 6260D 08123122 00:47 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 10:05 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Barium [7440-39-3]^ 61.8 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:20 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:20 JDH Chromium [7440-47-3]^ 2.18 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Nickel[7440-02-O]^ 5.69 J ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 10:05 MAM Vanadium [7440-62-2]^ 3.85 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:20 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MWll Lab Sample ID:CF11228-04 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 10:27 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 01:16 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 01:16 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 01:16 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 01:16 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 01:16 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MWll Lab Sample ID: CH1228-04 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 10:27 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 111 % 53-136 2H22033 EPA 6260D 08123122 01:16 RKY Dibromofluoromethane 72 1 50.0 144 % 67-129 2H22033 EPA 6260D 08123122 01:16 RKY QS-03 Toluene-d8 57 1 50.0 114 % 59-134 2H22033 EPA 6260D 08123122 01:16 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 10:10 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Barium [7440-39-3]^ 37.9 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:22 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:22 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 10:10 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:22 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW12 (MS/MSD) Lab Sample ID:CF11228-05 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 12:15 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/22/22 23:21 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/22/22 23:21 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/22/22 23:21 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/22/22 23:21 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/22/22 23:21 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW12 (MS/MSD) Lab Sample ID: CH1228-05 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 12:15 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 112 % 53-136 2H22033 EPA 6260D 08122122 23:21 RKY Dibromofluoromethane 68 1 50.0 135 % 67-129 2H22033 EPA 6260D 08122122 23:21 RKY QS-03 Toluene-d8 56 1 50.0 113 % 59-134 2H22033 EPA 6260D 08122122 23:21 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 21-121003 EPA 6020B 08/26/22 08:56 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Barium [7440-39-3]^ 47.8 ug/L 1 1.10 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Beryllium [7440-41-7]^ 0.256 J ug/L 1 0.160 1.00 21-121002 EPA 6010D 08/24/22 10:55 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 21-121002 EPA 6010D 08/24/22 10:55 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 21-121003 EPA 6020B 08/26/22 08:56 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 21-121002 EPA 6010D 08/24/22 10:55 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 17 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW13 Lab Sample ID:CF11228-06 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/18/22 13:25 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 01:44 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 01:44 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 01:44 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 01:44 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 01:44 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 18 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW13 Lab Sample ID: CH1228-06 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/18/22 13:25 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 111 % 53-136 2H22033 EPA 6260D 08123122 01:44 RKY Dibromofluoromethane 70 1 50.0 140 % 67-129 2H22033 EPA 6260D 08123122 01:44 RKY QS-03 Toluene-d8 57 1 50.0 113 % 59-134 2H22033 EPA 6260D 08123122 01:44 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 10:14 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Barium [7440-39-3]^ 93.9 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:24 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:24 JDH Chromium [7440-47-3]^ 2.40 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 10:14 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:24 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 19 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW16 Lab Sample ID:CF11228-07 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 12:25 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/19/22 23:54 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2H19027 EPA 8260D 08/19/22 23:54 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2H19027 EPA 8260D 08/19/22 23:54 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/19/22 23:54 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/19/22 23:54 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 20 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW16 Lab Sample ID: CH1228-07 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 12:25 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 58 1 50.0 116 % 53-136 2H19027 EPA 6260D 08119122 23:54 RKY Dibromofluoromethane 56 1 50.0 112 % 67-129 2H19027 EPA 6260D 08119122 23:54 RKY Toluene-d8 54 1 50.0 108 % 59-134 2H19027 EPA 6260D 08119122 23:54 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 10:18 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Barium [7440-39-3]^ 14.3 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:27 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:27 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 10:18 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:27 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 21 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW20 Lab Sample ID:CF11228-08 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/18/22 10:15 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 02:13 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 02:13 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 02:13 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 02:13 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 02:13 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 22 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW20 Lab Sample ID: CH1228-08 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/18/22 10:15 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 54 1 50.0 108 % 53-136 2H22033 EPA 6260D 08123122 02:13 RKY Dibromofluoromethane 72 1 50.0 144 % 67-129 2H22033 EPA 6260D 08123122 02:13 RKY QS-03 Toluene-d8 56 1 50.0 112 % 59-134 2H22033 EPA 6260D 08123122 02:13 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 21-121003 EPA 6020B 08/26/22 10:23 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 21-121002 EPA 6010D 08/24/22 11:29 JDH Barium [7440-39-3]^ 84.5 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:29 JDH Beryllium [7440-41-7]^ 0.223 J ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:29 JDH Cadmium [7440-43-9]^ 0.422 J ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:29 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:29 JDH Cobalt[7440-48-4]^ 9.08 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:29 JDH Copper[7440-50-8]^ 2.72 J ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:29 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 21-121002 EPA 6010D 08/24/22 11:29 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 21-121002 EPA 6010D 08/24/22 11:29 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 21-121002 EPA 6010D 08/24/22 11:29 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 21-121002 EPA 6010D 08/24/22 11:29 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 21-121003 EPA 6020B 08/26/22 10:23 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:29 JDH Zinc[7440-66-6]^ 12.5 ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:29 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 of 68 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW23 Lab Sample ID:CF11228-09 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 15:57 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/20/22 00:23 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2H19027 EPA 8260D 08/20/22 00:23 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2H19027 EPA 8260D 08/20/22 00:23 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/20/22 00:23 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/20/22 00:23 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW23 Lab Sample ID: CH1228-09 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 15:57 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 58 1 50.0 116 % 53-136 2H19027 EPA 6260D 08120122 00:23 RKY Dibromofluoromethane 57 1 50.0 115 % 67-129 2H19027 EPA 6260D 08120122 00:23 RKY Toluene-d8 54 1 50.0 108 % 59-134 2H19027 EPA 6260D 08120122 00:23 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 21-121003 EPA 6020B 08/26/22 10:27 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Barium [7440-39-3]^ 180 ug/L 1 1.10 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Beryllium [7440-41-7]^ 0.283 J ug/L 1 0.160 1.00 21-121002 EPA 6010D 08/24/22 11:31 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 21-121002 EPA 6010D 08/24/22 11:31 JDH Chromium [7440-47-3]^ 3.18 J ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Cobalt[7440-48-4]^ 1.58 J ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Nickel[7440-02-O]^ 7.23 J ug/L 1 2.20 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 21-121003 EPA 6020B 08/26/22 10:27 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 21-121002 EPA 6010D 08/24/22 11:31 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 of 68 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW24R Lab Sample ID:CF11228-10 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 09:35 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 02:42 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 02:42 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 02:42 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 02:42 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 02:42 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 26 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW24R Lab Sample ID:CF11228-10 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 09:35 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 111 % 53-136 2H22033 EPA 6260D 08123122 02:42 RKY Dibromofluoromethane 72 1 50.0 145 % 67-129 2H22033 EPA 6260D 08123122 02:42 RKY QS-03 Toluene-d8 57 1 50.0 114 % 59-134 2H22033 EPA 6260D 08123122 02:42 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 21-121003 EPA 6020B 08/26/22 10:31 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Barium [7440-39-3]^ 57.4 ug/L 1 1.10 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Beryllium [7440-41-7]^ 0.256 J ug/L 1 0.160 1.00 21-121002 EPA 6010D 08/24/22 11:33 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 21-121002 EPA 6010D 08/24/22 11:33 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 21-121003 EPA 6020B 08/26/22 10:31 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH Zinc[7440-66-6]^ 39.4 ug/L 1 4.40 10.0 21-121002 EPA 6010D 08/24/22 11:33 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 27 of 68 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW25 Lab Sample ID:CF11228-11 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 14:16 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/20/22 00:52 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2H19027 EPA 8260D 08/20/22 00:52 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2H19027 EPA 8260D 08/20/22 00:52 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/20/22 00:52 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/20/22 00:52 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 28 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW25 Lab Sample ID: CH1228-11 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 14:16 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 111 % 53-136 2H19027 EPA 6260D 08120122 00:52 RKY Dibromofluoromethane 56 1 50.0 112 % 67-129 2H19027 EPA 6260D 08120122 00:52 RKY Toluene-d8 54 1 50.0 107 % 59-134 2H19027 EPA 6260D 08120122 00:52 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 10:35 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Barium [7440-39-3]^ 32.2 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:41 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:41 JDH Chromium [7440-47-3]^ 3.70 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 10:35 MAM Vanadium [7440-62-2]^ 8.06 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:41 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 29 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW26 Lab Sample ID:CF11228-12 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 13:24 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 03:11 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 03:11 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 03:11 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 03:11 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 03:11 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 30 of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW26 Lab Sample ID: CH1228-12 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 13:24 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 112 % 53-136 2H22033 EPA 6260D 08123122 03:11 RKY Dibromofluoromethane 73 1 50.0 146 % 67-129 2H22033 EPA 6260D 08123122 03:11 RKY QS-03 Toluene-d8 58 1 50.0 115 % 59-134 2H22033 EPA 6260D 08123122 03:11 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 21-121003 EPA 6020B 08/26/22 10:49 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Barium [7440-39-3]^ 45.9 ug/L 1 1.10 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Beryllium [7440-41-7]^ 0.265 J ug/L 1 0.160 1.00 21-121002 EPA 6010D 08/24/22 11:43 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 21-121002 EPA 6010D 08/24/22 11:43 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 21-121003 EPA 6020B 08/26/22 10:49 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 21-121002 EPA 6010D 08/24/22 11:43 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 31 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW27 Lab Sample ID:CF11228-13 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 12:20 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 03:40 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 03:40 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 03:40 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 03:40 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 03:40 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 32 of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW27 Lab Sample ID: CH1228-13 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 12:20 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 54 1 50.0 107 % 53-136 2H22033 EPA 6260D 08123122 03:40 RKY Dibromofluoromethane 74 1 50.0 148 % 67-129 2H22033 EPA 6260D 08123122 03:40 RKY QS-03 Toluene-d8 57 1 50.0 113 % 59-134 2H22033 EPA 6260D 08123122 03:40 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 21-121003 EPA 6020B 08/26/22 10:53 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Barium [7440-39-3]^ 65.2 ug/L 1 1.10 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Beryllium [7440-41-7]^ 0.603 J ug/L 1 0.160 1.00 21-121002 EPA 6010D 08/24/22 11:45 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 21-121002 EPA 6010D 08/24/22 11:45 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 21-121003 EPA 6020B 08/26/22 10:53 MAM Vanadium [7440-62-2]^ 2.72 J ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH Zinc[7440-66-6]^ 6.96 J ug/L 1 4.40 10.0 21-121002 EPA 6010D 08/24/22 11:45 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 33 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW28R Lab Sample ID:CF11228-14 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 14:44 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 04:09 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 04:09 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 04:09 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 04:09 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 04:09 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 34 of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW28R Lab Sample ID: CH1228-14 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 14:44 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 113 % 53-136 2H22033 EPA 6260D 08123122 04:09 RKY Dibromofluoromethane 71 1 50.0 143 % 67-129 2H22033 EPA 6260D 08123122 04:09 RKY QS-03 Toluene-d8 56 1 50.0 112 % 59-134 2H22033 EPA 6260D 08123122 04:09 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 21-121003 EPA 6020B 08/26/22 10:57 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH Barium [7440-39-3]^ 377 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:48 JDH Beryllium [7440-41-7]^ 0.677 J ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:48 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 21-121002 EPA 6010D 08/24/22 11:48 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH Cobalt[7440-48-4]^ 3.33 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:48 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 21-121003 EPA 6020B 08/26/22 10:57 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 21-121002 EPA 6010D 08/24/22 11:48 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 35 of 68 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-French Drain Lab Sample ID:CF11228-15 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 09:34 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 04:37 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 04:37 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 04:37 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 04:37 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 04:37 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 36 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-French Drain Lab Sample ID: CH1228-15 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 09:34 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 54 1 50.0 109 % 53-136 2H22033 EPA 6260D 08123122 04:37 RKY Dibromofluoromethane 71 1 50.0 142 % 67-129 2H22033 EPA 6260D 08123122 04:37 RKY QS-03 Toluene-d8 56 1 50.0 112 % 59-134 2H22033 EPA 6260D 08123122 0437 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 11:01 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Barium [7440-39-3]^ 30.0 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:50 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:50 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 11:01 MAM Vanadium [7440-62-2]^ 6.94 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:50 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 37 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW1 Lab Sample ID:CF11228-16 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/16/22 16:10 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/20/22 01:21 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2H19027 EPA 8260D 08/20/22 01:21 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2H19027 EPA 8260D 08/20/22 01:21 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/20/22 01:21 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/20/22 01:21 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 38 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW1 Lab Sample ID: CH1228-16 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/16/22 16:10 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 57 1 50.0 113 % 53-136 2H19027 EPA 6260D 08120122 01:21 RKY Dibromofluoromethane 56 1 50.0 113 % 67-129 2H19027 EPA 6260D 08120122 01:21 RKY Toluene-d8 53 1 50.0 107 % 59-134 2H19027 EPA 6260D 08120122 01:21 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 11:06 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Barium [7440-39-3]^ 48.4 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:52 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:52 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 11:06 MAM Vanadium [7440-62-2]^ 5.40 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH Zinc[7440-66-6]^ 6.82 J ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:52 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 39 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW2 Lab Sample ID:CF11228-17 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/17/22 11:10 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-122033 EPA 8260D 08/23/22 05:06 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 21-122033 EPA 8260D 08/23/22 05:06 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 21-122033 EPA 8260D 08/23/22 05:06 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 21-122033 EPA 8260D 08/23/22 05:06 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 21-122033 EPA 8260D 08/23/22 05:06 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 40 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW2 Lab Sample ID: CH1228-17 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/17/22 11:10 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 54 1 50.0 109 % 53-136 2H22033 EPA 6260D 08123122 05:06 RKY Dibromofluoromethane 71 1 50.0 143 % 67-129 2H22033 EPA 6260D 08123122 05:06 RKY QS-03 Toluene-d8 56 1 50.0 112 % 59-134 2H22033 EPA 6260D 08123122 05:06 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H21003 EPA 6020B 08/26/22 11:10 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Barium [7440-39-3]^ 85.1 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:55 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:55 JDH Chromium [7440-47-3]^ 1.66 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Cobalt[7440-48-4]^ 4.62 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Copper[7440-50-8]^ 3.25 J ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Lead [7439-92-1]^ 3.45 J ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H21003 EPA 6020B 08/26/22 11:10 MAM Vanadium [7440-62-2]^ 12.2 ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH Zinc[7440-66-6]^ 18.9 ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:55 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 41 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW3 Lab Sample ID:CF11228-18 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/16/22 15:57 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/20/22 01:50 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2H19027 EPA 8260D 08/20/22 01:50 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2H19027 EPA 8260D 08/20/22 01:50 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/20/22 01:50 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/20/22 01:50 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 42 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW3 Lab Sample ID: CH1228-18 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/16/22 15:57 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 111 % 53-136 2H19027 EPA 6260D 08120122 01:50 RKY Dibromofluoromethane 57 1 50.0 114 % 67-129 2H19027 EPA 6260D 08120122 01:50 RKY Toluene-d8 54 1 50.0 108 % 59-134 2H19027 EPA 6260D 08120122 01:50 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H23036 EPA 6020B 08/26/22 14:36 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Barium [7440-39-3]^ 79.0 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:57 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:57 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Copper[7440-50-8]^ 3.71 J ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H23036 EPA 6020B 08/26/22 14:36 MAM Vanadium [7440-62-2]^ 6.86 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH Zinc[7440-66-6]^ 25.7 ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:57 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 43 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW4 Lab Sample ID:CF11228-19 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/16/22 10:36 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/20/22 02:18 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2H19027 EPA 8260D 08/20/22 02:18 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2H19027 EPA 8260D 08/20/22 02:18 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/20/22 02:18 RKY Xylenes (Total) [1330-20-7]A 0.45 u ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/20/22 02:18 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 44 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW4 Lab Sample ID: CH1228-19 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/16/22 10:36 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 111 % 53-136 2H19027 EPA 6260D 08120122 02:18 RKY Dibromofluoromethane 58 1 50.0 116 % 67-129 2H19027 EPA 6260D 08120122 02:18 RKY Toluene-d8 55 1 50.0 109 % 59-134 2H19027 EPA 6260D 08120122 02:18 RKY Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL PQL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H23036 EPA 6020B 08/26/22 14:40 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Barium [7440-39-3]^ 57.8 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 11:59 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 11:59 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H23036 EPA 6020B 08/26/22 14:40 MAM Vanadium [7440-62-2]^ 2.29 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 11:59 JDH FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 45 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW5 Lab Sample ID:CF11228-20 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/15/22 16:09 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte FCAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/20/22 02:47 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2H19027 EPA 8260D 08/20/22 02:47 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2H19027 EPA 8260D 08/20/22 02:47 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/20/22 02:47 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 46 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-SW5 Lab Sample ID: CH1228-20 Received: 08/19/22 14:00 Matrix: Surface Water Sampled:08/15/22 16:09 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/20/22 02:47 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 55 1 50.0 109 % 53-136 2H19027 EPA 6260D 08120122 02:47 RKY Dibromofluoromethane 58 1 50.0 117 % 67-129 2H19027 EPA 6260D 08120122 02:47 RKY Toluene-d8 54 1 50.0 107 % 59-134 2H19027 EPA 6260D 08120122 02:47 RKY 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 2H23036 EPA 6020B 08/26/22 14:44 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Barium [7440-39-3]^ 69.1 ug/L 1 1.10 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H21002 EPA 6010D 08/24/22 12:02 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H21002 EPA 6010D 08/24/22 12:02 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Cobalt[7440-48-4]^ 5.70 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Nickel[7440-02-O]^ 2.55 J ug/L 1 2.20 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H23036 EPA 6020B 08/26/22 14:44 MAM Vanadium [7440-62-2]^ 1.78 J ug/L 1 1.40 10.0 2H21002 EPA 6010D 08/24/22 12:02 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H21002 EPA 6010D 08/24/22 12:02 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]^ 2.6 ug/L 1 0.80 2.0 2H29021 EPA 8260D 08/29/22 14:11 JMW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.6 1 5.00 91 % 75-125 2H29021 EPA 8260D 0812912214:11 JMW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 47 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-Field Blank Lab Sample ID:CF11228-21 Received: 08/19/22 14:00 Matrix: Water Sampled:08/17/22 16:10 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,1-Dichloroethane [75-34-3]A 0.13 u ug/L 1 0.13 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,1-Dichloroethene [75-35-4]A 0.21 u ug/L 1 0.21 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 u ug/L 1 0.23 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 u ug/L 1 0.48 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,2-Dibromoethane [106-93-4]A 0.66 u ug/L 1 0.66 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 u ug/L 1 0.19 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,2-Dichloroethane [107-06-2]A 0.21 u ug/L 1 0.21 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,2-Dichloropropane [78-87-5]A 0.10 u ug/L 1 0.10 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 u ug/L 1 0.19 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 u ug/L 1 1.1 5.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Acetone [67-64-1]A 20 ug/L 1 10 20 21-123028 EPA 8260D 08/23/22 22:39 RKY 0-01 Acrylonitrile [107-13-1]A 3.5 u ug/L 1 3.5 10 21-123028 EPA 8260D 08/23/22 22:39 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Bromodichloromethane [75-27-4]A 0.17 u ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Bromoform [75-25-2]A 0.22 u ug/L 1 0.22 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Chloroform [67-66-3]A 0.18 u ug/L 1 0.18 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 u ug/L 1 0.15 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Ethylbenzene[100-41-4]A 0.13 u ug/L 1 0.13 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Iodomethane[74-88-4]A 1.7 u ug/L 1 1.7 5.0 21-123028 EPA 8260D 08/23/22 22:39 RKY QV-01 Methylene chloride [75-09-2]A 0.95 J ug/L 1 0.23 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY 0-01 Styrene[100-42-5]A 0.11 u ug/L 1 0.11 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Tetrahydrofuran [109-99-9]A 0.53 u ug/L 1 0.53 1.0 21-122033 EPA 8260D 08/22/22 22:52 RKY Toluene [108-88-3]A 0.14 u ug/L 1 0.14 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 u ug/L 1 0.21 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 u ug/L 1 0.15 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Trichloroethene [79-01-6]A 0.15 u ug/L 1 0.15 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Trichlorofluoromethane [75-69-4]A 0.24 u ug/L 1 0.24 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 21-123028 EPA 8260D 08/23/22 22:39 RKY Vinyl chloride [75-01-4]A 0.32 Ll ug/L 1 0.32 1.0 21-123028 EPA 8260D 08/23/22 22:39 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 48 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-Field Blank Lab Sample ID: CH1228-21 Received: 08/19/22 14:00 Matrix: Water Sampled:08/17/22 16:10 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: Nicolas Tejada Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 2H23028 EPA 8260D 08/23/22 22:39 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 58 1 60.0 96 % 53-136 2H23028 EPA 6260D 08123122 22:39 RKY Dibromofluoromethane 67 1 60.0 112 % 67-129 2H23028 EPA 6260D 08123122 22:39 RKY Toluene-d8 56 1 60.0 93 % 59-134 2H23028 EPA 6260D 08123122 22:39 RKY 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 2H23036 EPA 6020B 08/26/22 14:58 MAM Arsenic [7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Barium [7440-39-3]^ 1.10 U ug/L 1 1.10 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H22035 EPA 6010D 08/25/22 09:54 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H22035 EPA 6010D 08/25/22 09:54 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Cobalt [7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H23036 EPA 6020B 08/26/22 14:58 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:54 JDH Zinc [7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H22035 EPA 6010D 08/25/22 09:54 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]^ 0.80 U ug/L 1 0.80 2.0 2H25007 EPA 8260D 08/25/22 11:03 JMW Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Analyzed ffly Notes Toluene-d8 4.2 1 5.00 85 % 75-125 2H25007 EPA 8260D 0812512211:03 JMW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 49 of 68 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-Trip Blank Lab Sample ID:CF11228-22 Received: 08/19/22 14:00 Matrix: Water Sampled:08/15/22 16:09 Work Order: CF11228 Project: Rowan County Active Landfills Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certfied anaiyte [NC 591] Analyte ICAS Numberl Results Flaa Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 u ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 u ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 u ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 u ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 u ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 2-Butanone [78-93-3]A 1.3 u ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 2-Hexanone [591-78-6]A 0.88 u ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/19/22 21:59 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 u ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Acetone [67-64-1]A 10 u ug/L 1 10 20 2H19027 EPA 8260D 08/19/22 21:59 RKY Acrylonitrile [107-13-1]^ 3.5 u ug/L 1 3.5 10 2H19027 EPA 8260D 08/19/22 21:59 RKY Benzene[71-43-2]A 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Bromochloromethane [74-97-5]A 0.48 u ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Bromodichloromethane [75-27-4]^ 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Bromoform [75-25-2]^ 0.22 u ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Bromomethane [74-83-9]A 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Carbon disulfide [75-15-0]A 1.5 u ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Carbon tetrachloride [56-23-5]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Chlorobenzene[108-90-7]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Chloroethane [75-00-3]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Chloroform [67-66-3]^ 0.18 u ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Chloromethane [74-87-3]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 u ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Dibromochloromethane [124-48-1]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Dibromomethane [74-95-3]A 0.27 u ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Ethylbenzene [100-41-4]A 0.13 u ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Iodomethane [74-88-4]^ 1.7 u ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Methylene chloride [75-09-2]A 0.23 u ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Styrene [100-42-5]A 0.11 u ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Tetrachloroethene [127-18-4]A 0.17 u ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Tetrahydrofuran [109-99-9]^ 0.53 u ug/L 1 0.53 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Toluene [108-88-3]^ 0.14 u ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 u ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 u ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Trichloroethene [79-01-6]^ 0.15 u ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Trichlorofluoromethane [75-69-4]^ 0.24 u ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Vinyl acetate [108-05-4]A 0.95 u ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Vinyl chloride [75-01-4]^ 0.32 u ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/19/22 21:59 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 50 Of 68 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-Trip Blank Lab Sample ID: CH1228-22 Received: 08/19/22 14:00 Matrix: Water Sampled:08/15/22 16:09 Work Order: CH1228 Project: Rowan County Active Landfills Sampled By: ENCO Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed AX Notes Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/19/22 21:59 RKY Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 56 1 50.0 113 % 53-136 2H19027 EPA 6260D 08119122 21:59 RKY Dlbromofluoromethane 54 1 50.0 108 % 67-129 2H19027 EPA 6260D 08119122 21:59 RKY Toluene-d8 53 1 50.0 105 % 59-134 2H19027 EPA 6260D 08119122 21:59 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 51 of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H19027 - EPA 5030E MS Blank (2111-119027-BLKI) Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 21:30 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 58 ug/L 50.0 115 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 52 Of 68 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H19027 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (2H19027-BLK3) Continued Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 21:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 52 u91L 50.0 104 67-129 Toluene-& 53 u91L 50.0 105 59-134 LCS (21-119027-BSI) Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 19:35 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 93 75-133 Benzene 19 1.0 ug/L 20.0 95 80-134 Chlorobenzene 18 1.0 ug/L 20.0 92 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 19 1.0 ug/L 20.0 97 74-120 Matrix Spike (2H19027-MS1) Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 20:04 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 93 75-133 Benzene 26 1.0 ug/L 20.0 7.2 92 80-134 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 92 80-120 Toluene 31 1.0 ug/L 20.0 12 97 71-120 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 95 74-120 Matrix Spike Dup (2H19027-MSD1) Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 20:33 Source: CF11231-02 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch 2H22033 - EPA 50308 MS Result 21 27 20 34 20 Flaq POL 1.0 1.0 1.0 1.0 1.0 Units ug/L ug/L ug/L ug/L ug/L Spike Level 20.0 20.0 20.0 20.0 20.0 Source Result 0.21 U 7.2 0.17 U 12 0.15 U %REC 106 100 101 113 101 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 14 6 10 10 7 RPD Limit Notes 20 17 16 17 22 Blank (2H22033-BLKI) Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 21:54 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 53 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H22033 - EPA 50305 MS - Continued Blank (2H22033-BLKI) Continued Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 21:54 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Tetrahydrofuran 0.53 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L 4-Bromofluorobenzene 56 u91L 50.0 111 53-136 Dibromofluoromethane 64 u91L 50.0 127 67-129 Toluene-d8 53 u91L 50.0 107 59-134 LCS (2H22033-BS1) Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 19:59 Spike Source O/oREC RPD Analvte Result Flaq Q Units Level Result O/oREC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 94 75-133 Benzene 18 1.0 ug/L 20.0 92 80-134 Chlorobenzene 18 1.0 ug/L 20.0 92 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 19 1.0 ug/L 20.0 93 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 54 of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H22O33 - EPA 50305 MS - Continued Matrix Spike (2H22033-MS1) Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 20:27 Source: CF11228-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 101 75-133 Benzene 19 1.0 ug/L 20.0 0.15 U 96 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 99 74-120 Matrix Spike Dup (2H22033-MSD1) Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 20:56 Source: CF11228-OS Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 105 75-133 4 20 Benzene 20 1.0 ug/L 20.0 0.15 U 98 80-134 1 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 97 80-120 1 16 Toluene 21 1.0 ug/L 20.0 0.14 U 107 71-120 2 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 98 74-120 0.8 22 Batch 2H23O28 - EPA 50308 MS Blank (2H23028-BLK1) Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 21:12 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 55 Of 68 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H23028 - EPA 50305 MS - Continued (� �Eo www.encolabs.com Blank (2H23028-BLKI) Continued Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 21:12 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 59 ug/L 60.0 98 53-136 Dibromofluoromethane 65 u9/L 60.0 109 67-129 Toluene-d8 55 u9/L 60.0 91 59-134 LCS (2H23028-BSI) Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 19:17 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 101 75-133 Benzene 18 1.0 ug/L 20.0 89 80-134 Chlorobenzene 18 1.0 ug/L 20.0 90 80-120 Toluene 20 1.0 ug/L 20.0 99 71-120 Trichloroethene 17 1.0 ug/L 20.0 87 74-120 Matrix Spike (2H23028-MS1) Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 19:46 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 115 75-133 Benzene 19 1.0 ug/L 20.0 0.15 U 96 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 95 74-120 Matrix Spike Dup (2H23028-MSD1) Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 20:15 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 117 75-133 2 20 Benzene 20 1.0 ug/L 20.0 0.15 U 100 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 5 16 Toluene 23 1.0 ug/L 20.0 0.14 U 114 71-120 7 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 102 74-120 7 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 56 Of 68 0Nk"q09 www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H21002 - EPA 3005A Blank (2H21002-BLK1) Prepared: 08/21/2022 18:01 Analyzed: 08/24/2022 10:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (2H21002-BS1) Prepared: 08/21/2022 18:01 Analyzed: 08/24/2022 10:58 Spike Source %REC RPD Analvte Result FFFlaa POL Units Level Result %REC Limits RPD Limit Notes Arsenic 178 10.0 ug/L 200 89 80-120 Barium 194 10.0 ug/L 200 97 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 18.4 1.00 ug/L 20.0 92 80-120 Chromium 201 10.0 ug/L 200 100 80-120 Cobalt 186 10.0 ug/L 200 93 80-120 Copper 196 10.0 ug/L 200 98 80-120 Lead 183 10.0 ug/L 200 91 80-120 Nickel 195 10.0 ug/L 200 98 80-120 Selenium 181 10.0 ug/L 200 91 80-120 Silver 199 10.0 ug/L 200 99 80-120 Vanadium 199 10.0 ug/L 200 100 80-120 Zinc 196 10.0 ug/L 200 98 80-120 Matrix Spike (2H21002-MS1) Prepared: 08/21/2022 18:01 Analyzed: 08/24/2022 11:01 Source: CF11228-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 183 10.0 ug/L 200 7.60 U 91 75-125 Barium 241 10.0 ug/L 200 47.8 97 75-125 Beryllium 20.8 1.00 ug/L 20.0 0.256 103 75-125 Cadmium 18.5 1.00 ug/L 20.0 0.360 U 93 75-125 Chromium 204 10.0 ug/L 200 1.40 U 102 75-125 Cobalt 188 10.0 ug/L 200 1.40 U 94 75-125 Copper 199 10.0 ug/L 200 1.60 U 100 75-125 Lead 185 10.0 ug/L 200 3.10 U 92 75-125 Nickel 197 10.0 ug/L 200 2.20 U 98 75-125 Selenium 188 10.0 ug/L 200 6.20 U 94 75-125 Silver 203 10.0 ug/L 200 1.90 U 101 75-125 Vanadium 203 10.0 ug/L 200 1.40 U 101 75-125 Zinc 202 10.0 ug/L 200 4.40 U 101 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 57 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H21002 - EPA 3005A - Continued Matrix Spike Dup (2H21002-MSD3) Prepared: 08/21/2022 18:01 Analyzed: 08/24/2022 11:03 Source: CF11228-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 203 10.0 ug/L 200 7.60 U 102 75-125 11 20 Barium 265 10.0 ug/L 200 47.8 109 75-125 9 20 Beryllium 20.4 1.00 ug/L 20.0 0.256 101 75-125 2 20 Cadmium 20.2 1.00 ug/L 20.0 0.360 U 101 75-125 9 20 Chromium 201 10.0 ug/L 200 1.40 U 101 75-125 2 20 Cobalt 206 10.0 ug/L 200 1.40 U 103 75-125 9 20 Copper 197 10.0 ug/L 200 1.60 U 98 75-125 1 20 Lead 204 10.0 ug/L 200 3.10 U 102 75-125 10 20 Nickel 216 10.0 ug/L 200 2.20 U 108 75-125 10 20 Selenium 208 10.0 ug/L 200 6.20 U 104 75-125 10 20 Silver 200 10.0 ug/L 200 1.90 U 100 75-125 1 20 Vanadium 200 10.0 ug/L 200 1.40 U 100 75-125 1 20 Zinc 226 10.0 ug/L 200 4.40 U 113 75-125 12 20 Post Spike (2H21002-PS1) Prepared: 08/21/2022 18:01 Analyzed: 08/24/2022 11:06 Source: CF11228-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.194 0.0100 mg/L 0.200 -0.00125 97 80-120 Barium 0.253 0.0100 mg/L 0.200 0.0478 103 80-120 Beryllium 0.0215 0.00100 mg/L 0.0200 0.000256 106 80-120 Cadmium 0.0194 0.00100 mg/L 0.0200 0.000192 96 80-120 Chromium 0.211 0.0100 mg/L 0.200 0.000456 106 80-120 Cobalt 0.198 0.0100 mg/L 0.200 0.000306 99 80-120 Copper 0.206 0.0100 mg/L 0.200 -0.00131 103 80-120 Lead 0.194 0.0100 mg/L 0.200 0.000533 97 80-120 Nickel 0.207 0.0100 mg/L 0.200 0.000296 103 80-120 Selenium 0.200 0.0100 mg/L 0.200 0.000623 100 80-120 Silver 0.210 0.0100 mg/L 0.200 0.000150 105 80-120 Vanadium 0.210 0.0100 mg/L 0.200 0.000987 105 80-120 Zinc 0.212 0.0100 mg/L 0.200 0.00317 105 80-120 Batch 2H21003 - EPA 3005A Blank (2H23003-BLKi) Prepared: 08/21/2022 18:04 Analyzed: 08/26/2022 08:48 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 (2H21003-BS1) Prepared: 08/21/2022 18:04 Analyzed: 08/26/2022 08:52 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.3 1.00 ug/L 20.0 101 80-120 Thallium 20.8 1.00 ug/L 20.0 104 80-120 Matrix Spike (2H21003-MS1) Prepared: 08/21/2022 18:04 Analyzed: 08/26/2022 09:01 Source: CF11228-05 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 58 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H21003 - EPA 3005A - Continued Matrix Spike (2H21003-MS3) Continued Prepared: 08/21/2022 18:04 Analyzed: 08/26/2022 09:01 Source: CF11228-05 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Antimony 38.3 2.00 ug/L 40.0 0.740 U 96 75-125 Thallium 39.9 2.00 ug/L 40.0 0.220 U 100 75-125 Matrix Spike Dup (2H23003-MSD1) Prepared: 08/21/2022 18:04 Analyzed: 08/26/2022 09:07 Source: CF11228-05 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Antimony 39.1 2.00 ug/L 40.0 0.740 U 98 75-125 2 20 Thallium 41.1 2.00 ug/L 40.0 0.220 U 103 75-125 3 20 Post Spike (2H21003-PS3) Prepared: 08/21/2022 18:04 Analyzed: 08/26/2022 09:12 Source: CF11228-05 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Antimony 20.6 1.00 ug/L 20.0-0.0654 103 75-125 Thallium 21.1 1.00 ug/L 20.0 0.00243 105 75-125 Batch 2H22035 - EPA 3005A Blank (2H22035-BLKI) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:29 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Lead 3.10 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L LCS (2H22035-BSI) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:42 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Arsenic 209 10.0 ug/L 200 105 80-120 Barium 209 10.0 ug/L 200 105 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 20.3 1.00 ug/L 20.0 101 80-120 Chromium 201 10.0 ug/L 200 101 80-120 Cobalt 208 10.0 ug/L 200 104 80-120 Copper 197 10.0 ug/L 200 99 80-120 Lead 206 10.0 ug/L 200 103 80-120 Nickel 209 10.0 ug/L 200 104 80-120 Selenium 203 10.0 ug/L 200 102 80-120 Silver 200 10.0 ug/L 200 100 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 59 Of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H22035 - EPA 3005A - Continued LCS (2H22035-BSI) Continued Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:42 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Vanadium 199 10.0 ug/L 200 100 80-120 Zinc 210 10.0 ug/L 200 105 80-120 Matrix Spike (2H22035-MS3) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:45 Source: CF11231-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Arsenic 184 10.0 ug/L 200 7.60 U 92 75-125 Barium 282 10.0 ug/L 200 81.6 100 75-125 Beryllium 19.7 1.00 ug/L 20.0 0.160 U 98 75-125 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 87 75-125 Chromium 198 10.0 ug/L 200 3.55 97 75-125 Cobalt 206 10.0 ug/L 200 7.54 99 75-125 Copper 182 10.0 ug/L 200 1.60 U 91 75-125 Lead 198 10.0 ug/L 200 3.10 U 99 75-125 Nickel 202 10.0 ug/L 200 4.48 99 75-125 Selenium 180 10.0 ug/L 200 6.20 U 90 75-125 Silver 199 10.0 ug/L 200 1.90 U 99 75-125 Vanadium 196 10.0 ug/L 200 1.53 97 75-125 Zinc 204 10.0 ug/L 200 7.82 98 75-125 Matrix Spike Dup (2H22035-MSD1) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:47 Source: CF11231-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Arsenic 186 10.0 ug/L 200 7.60 U 93 75-125 1 20 Barium 283 10.0 ug/L 200 81.6 101 75-125 0.2 20 Beryllium 19.5 1.00 ug/L 20.0 0.160 U 97 75-125 1 20 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 87 75-125 0.07 20 Chromium 197 10.0 ug/L 200 3.55 97 75-125 0.7 20 Cobalt 207 10.0 ug/L 200 7.54 100 75-125 0.3 20 Copper 181 10.0 ug/L 200 1.60 U 91 75-125 0.3 20 Lead 195 10.0 ug/L 200 3.10 U 98 75-125 1 20 Nickel 201 10.0 ug/L 200 4.48 98 75-125 0.2 20 Selenium 175 10.0 ug/L 200 6.20 U 88 75-125 3 20 Silver 200 10.0 ug/L 200 1.90 U 100 75-125 0.6 20 Vanadium 195 10.0 ug/L 200 1.53 97 75-125 0.8 20 Zinc 204 10.0 ug/L 200 7.82 98 75-125 0.4 20 Post Spike (2H22035-PS1) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:50 Source: CF11231-02 Spike Source O/oREC RPD Analvte Result Flaq POL Units Level Result O/oREC Limits RPD Limit Notes Arsenic 0.196 0.0100 mg/L 0.200 -0.0172 98 80-120 Barium 0.295 0.0100 mg/L 0.200 0.0816 107 80-120 Beryllium 0.0205 0.00100 mg/L 0.0200 -0.000101 102 80-120 Cadmium 0.0185 0.00100 mg/L 0.0200 -0.00214 92 80-120 Chromium 0.207 0.0100 mg/L 0.200 0.00355 102 80-120 Cobalt 0.217 0.0100 mg/L 0.200 0.00754 105 80-120 Copper 0.191 0.0100 mg/L 0.200 -0.0170 96 80-120 Lead 0.208 0.0100 mg/L 0.200 -6.35E-5 104 80-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 60 of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H22035 - EPA 3005A - Continued Post Spike (2H22035-PS3) Continued Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:50 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nickel 0.212 0.0100 mg/L 0.200 0.00448 104 80-120 Selenium 0.194 0.0100 mg/L 0.200 -0.0310 97 80-120 Silver 0.206 0.0100 mg/L 0.200 -0.00183 103 80-120 Vanadium 0.205 0.0100 mg/L 0.200 0.00153 102 80-120 Zinc 0.214 0.0100 mg/L 0.200 0.00782 103 80-120 Batch 2H23036 - EPA 3005A Blank (2H23036-BLKi) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:06 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 (2H23036-BS1) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.6 1.00 ug/L 20.0 103 80-120 Thallium 20.5 1.00 ug/L 20.0 103 80-120 Matrix Spike (2H23036-MS1) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:19 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.7 2.00 ug/L 40.0 0.740 U 102 75-125 Thallium 40.9 2.00 ug/L 40.0 0.220 U 102 75-125 Matrix Spike Dup (2H23036-MSD3) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:23 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.5 2.00 ug/L 40.0 0.740 U 101 75-125 0.4 20 Thallium 40.2 2.00 ug/L 40.0 0.220 U 101 75-125 2 20 Post Spike (2H23036-PS3) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:27 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 17.8 1.00 ug/L 20.0 0.0204 89 75-125 Thallium 17.4 1.00 ug/L 20.0 0.00489 87 75-125 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 2H25007 - EPA 50305 MS Blank (2H25007-BLKi) Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 10:12 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 4.4 ug/L 5.00 87 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 61 of 68 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 2H25007 - EPA 5030E MS - Continued LCS (2H25007-BSI) Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 07:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 25.0 97 80-133 Toluene-& 4.5 ug/L 5.00 90 75-125 Matrix Spike (2H25007-MS1) Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 08:29 Source: AF06202-02 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 220 10 ug/L 125 180 35 80-133 QM-07 Toluene-d8 22 u91L 25.0 89 75-125 Matrix Spike Dup (2H25007-MSD1) Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 08:54 Source: AF06202-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 290 10 ug/L 125 180 86 80-133 25 19 QM-11 Toluene-d8 22 u9/L 25.0 86 75-125 Batch 2H29021 - EPA 5030B MS Blank (2H29021-BLK1) Prepared: 08/29/2022 00:00 Analyzed: 08/29/2022 11:55 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 4.3 u91L 5.00 87 75-125 LCS (2H29021-BSI) Prepared: 08/29/2022 00:00 Analyzed: 08/29/2022 08:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 23 2.0 ug/L 25.0 94 80-133 Toluene-d8 4.2 u9/L 5.00 63 75-125 LCS Dup (2H29021-BSD1) Prepared: 08/29/2022 00:00 Analyzed: 08/29/2022 10:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit 1,4-Dioxane 24 2.0 ug/L 25.0 97 80-133 3 19 Toluene-d8 4.3 u91L 5.00 86 75-125 Notes QM-10 QM-10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 62 Of 68 (� �Eo www.encolabs.com FLAGS/NOTES AND DEFINITIONS B The analyte was detected in the associated method blank. D The sample was analyzed at dilution. J The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. U The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. E The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. MRL Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. PQL PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL. N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a "tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. [CALC] Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses. 0-01 This compound is a common laboratory contaminant. QM-07 The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-10 LCS/LCSD were analyzed in place of MS/MSD. QM-11 Precision between duplicate matrix spikes of the same sample was outside acceptance limits. 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 63 of 68 E 0 Nn .0 m O V C Q% a It w 0 M W U S 6' 3 61 u O � LLNo4"j� 0� Z (n W FE O o N S li N Of N 0 ; V in a U x Z p� a oN x uj U) Z 0 LU Z a N � 0 � b m Z rz 6 a w �o`? r Y o n E `a 0 �l E € mm x d r � CD 1- Cn LEI a u � U n Y `a UL �n •a cr J � Z ro c m m m a m [Eo] Q =+ 'U U Uz n as }� x x x x x x x x x x x N C CD a Wis aDm,pwue;x3 2 aaaaa' L xgpugddy CMD 0 U 6 POPLIOJ"-3 Ci09ZE'L xgpueddH C ogn 'k xipuaddy ❑4gZg x x x x x x x x x x x x v _ N 1 y4 C o C• x w Q) ro C7 C7 U C7 C9 t7 C9 C� C7 t� C'3 C� o x N E .0 CIO E m'� U pp �1 E E C U �y✓ O� C 2- IL IL a. ¢ m U5 J r r ro N t4 ,t-4 W 3 f(3 > c C� UZ r- t. Q1 r GCi O N cv o 0 z a C m $ d �J 0 to ri7 c� crf rh A A A c+%s A a p a) 0 G7 + O G C7 G u E d7 y= C] O 0 o ClO C) n n CD CD w w co co z �� L� E E � U m m E � ro dro E E ` F m 9 a c a 0 U h� i Q v m m u c� N N E ry I m � E E d E E a u cc 0 m m d N a Fw � a Ir I Cl s U E m s rn c c a m 4 rx m LPage 64 of 6 I L; d �r r o 6 M r 0 V w m 0 u ci 16 I N CL 0 cc t2 0 W U o N oLL A C YJ Opi v z LL o U rn a Z a U _0 o tap71 O a M D � r lB -p N C w N -o 1 F= -S rr5 m x m '� ) _ V7 m rn w 'O T ¢ m c oN m O y 3 Y Z ❑ � J m m 'm m E o c Q a U i V m � U o X X X X X X X X x y d � (31 NIS rJoaMPaPuO7x3 X X � 0ogzo' 1 )gMwddy aDgzq ¢ 0 U PPUEIIX3 ao9Z8's xgpueddv aoozg X fSf L XipLjGddV (]OgZg k X X X x x x ~ v w o m 1 N x a d N 9� O o a m E �v m �o ;U m U(D SP E P Y o E £ iii c U �= _ o v m :1i O � _ � m — y a rY r.► er 1� � t.,l J N o) fj7 tp vo & (!j m Lca �[ Ln C 5 C Z o A N N V O C Q u� 3: ,9 �-- j O E 2 i tL V3 coL�Lj .— 1: �— N � G Q v` d w'O [p d a G r. Z G O G b 0 0 0 CD t� G p Z r, •� �� w � v colco 05 00 4T 47 QO co CO db E m LD m uy = C7 ;E a m r E 0 m m U U r m c m EbQ�:r� m m Q zoo O 97 v td Q ¢ U U 0 U 4 r a a cc a ¢ E N E E P d O a T In v esn co m m 0 a F- atl oI ce I ¢ 8 s E a Cl i E m v� W a v c m Cc � � m a` 3G V n d ti E Page 65 of 6 i 4 m h 0 a 6p 19 N m m a 0 M Sample Preservation Verification EJ�ICO ENCO Cary Work Order: CF11228 Project: Rowan County Active Landfills Client: Golder Associates, Inc. (GO007) Project#: 21456818.102 Logged In: 19-Aug-22 15:18 Logged By: Samantha L Hy >tC Preservation Check Performed By: c2_ Date/Time: II CF11228-01 Cont Type Pres (pH) Requirement pH Checked 1 Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y/ N/ NA Y N NA CF11228-02 Cont Type Pres (pH) Requirement pH Checked / 4i Controt pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y 11 N I NA Y N h NA CF11228-03 Cont Type Pres (pH) Requirement pH Checked 1 Control Date�me pH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y I N/ NA Y I N l,, NA CF11228-04 Caret i yPe Pres (pH) pH Checked/ pH Adjusted Date/Time Reagent Used/Comments Requirement Controt , „ Adjusted A 250mLP+HNO3 . <2 Y/ IV 1 NA Y N l NA i CF11228-05 Corn Type Pres (pl-I) Requirement pH Checked / Ip Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 N / NA Y N NA 6 250mLP+HNO3 <2 Y! N 1 NA Y NA CF11228-06 Cont Type Pres (pH) Requirement pH Checked / 1,4qControl pH Adjusted Date/Time I Adjusted Reagent used/Comments A 250mLP+HNO3 1 Y I N/ NA I Y/ N/ NA CF11228-07 Gant Type Pres (pH) Requirement pHChecked / --An Control pH Adjusted Datemme Adjusted Reagent t tsedfCornmenks A 250mLP+HNO3 <2 Y N I NA Y/ N 1 NA CF11228-08 Cont Type Pres (pH) Requirement pH Checked / " t� Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250niLP+HNO3 <2 Y 1 N I NA Y I N l NA C:IELMNTIPrintlwko_Preservation Check. rpt Page 66 of 68 Sample Preservation Verification ENCO Cary Work Order: CF11228 Project: Rowan County Active Landfills Client: Golder Associates, Inc. (GO007) Project #: 21456818.102 Logged In: 19-Aug-22 15:18 Logged By: Samantha L H at 'a 1 11 - o Preservation Check Performed By: _ CA _ Date/Time: CF11228-09 Cont Type Pres (pH) Requirement JRH Checked/ Control pH Adjusted DateMme Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y N/ NA __d I Y kN NA CF11228-10 Cont Type Pres (pH) Requirement pH Checked / Control Date/Time PH Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y 1 N/ NA I Y N )NA CF11228-11 Cont Type Pres (pH) pH Checked f 1,Jn DatelTime pH Adjusted Reagent Used/Comments Requirement Control Adjusted A 250mLP+HNO3 <2 Y N/ NA Y N NA CF11228-12 Cont Type Pres (pH) Requirement pH Checked / J(i Control PH Adjusted DatelTime Adjusted Reagent Used/Comments A 250mLP+HNO3 . <2 Y � N / NA Y ! N NA CF11228-13 Cont T�rpe Pres (pi-4) Requirement pH Checked / ° Control pH Adjusted DateMme Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y N! NA Y N NA _ CF11228-14 Cony Type Pres (pH) Requirement pH Checked ! Control pH Adjusted DateMme Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y I N/ NA Y N NA CF11228-15 Coot Type Pres (pH) I pH Checked f Requirement Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 1 <2 1 Y N/ NA Y N NA CF11228-16 Cont Type Pres (pH) Requirement pH Checked / ;=1rk Control pH Adjusted Date/Time Adjusted Reagent Used/Comments A 250mLP+HNO3 <2 Y 1 N 1 NA Y7/N NA CF11228-17 Cont Type Pres (pH) pH Checked 1 pH Ad�usted DatelTimDate/Time,Reagent Used/Comments Requirement ; lit Control . Adjusted A 250mLP+HNO3 <2 Y l N 1 NA Y 1(N !/ NA C:IELMNTIPrintlwko_PreservationCheck,rpt Page 67_of 68 Sample Preservation Verification 1,119 a . ENCO Cary�- Work Order: CF11228 Project: Rowan County Active Landfills Client: Golder Associates, Inc. (GO007) Project#: 21456818.102 Logged in; 19-Aug-22 15:18 Logged By: Samantha L Hyatt Preservation Check Performed By: Date/Time: CF11228-18 Cont Type Pres (pH) Requirement pH Checked 1 Control pH Adjusted Date/Time Adiusted Reagent Used/Comments A 250mLP+HNO3 <2 Y N I NA I Y N NA C F11228-19 Cont Type Pres (pH) Requirement pH Checked f 1,Jn Control pH Adjusted DateMme Adjusted Reagent Used/Comments A 25OmLP+HNO3 <2 Y y N / NA I Y (I N ' NA CF1.1228-20 Cont Type _ Pres {pH) Requirement pH Checked 1 _ p Control pH Ad ustod Date/Time Adjusted Rea ent Used/Comments g A 250mLP+HNO3 <2 Y N t NA Y N NA CF11228-21 Cant Type Pres (pH) Requirement pH Checked ! 'Jq Control pH Adjusted Date/Timo Adjusted Reagent UsedlComments A 250mLP+HNO3 . <2 LY,1 N / NA YIN 1' NA CF11228-23 Cont Type Pres Pres (pH) Requirement pH Checked! t Control Date/Time Adjusted Adjusted Reagent Used/Comments A 250mLP+HNO3 [F] <2 YIN / NA Y N j NA CF11228-24 Cont T e yp Pres (pH) Requirement pH Checked/ Datums pH Ad}listed .� Control Adiusted Reagent Used/Comments A 250mLP+HNC3 [F] <2 Y 1 N / NA Y /( N ! NA Rea ent Name ID 1 2 pH Strip ID: Rea ent Name ID 3 4 Rea ent Name ID 5 6 Page 68 of 68 C:IELMNTIPrintlwko_PreservationCheck. rpt GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 4 Project Name: Rowan County Active Landfill Project Reference Number: GL21456818.001 Sampling Event Date: August 15 — 17, 2022 Report #: CF11228 Review Date: November 4, 2022 XX%I) GOLDER Initials: DC Review. RPK Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates NC, 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) X NC Appendix I NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List Other: 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. • Project number on report should be GL21456818.001.01 DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. 2.0 SAMPLE HOLDING TIMES DC Holding times for extraction and/or analysis were met for each analytical GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 4 Method (see below for reference). NXtil) GOLDER Review Criteria Method Anal tes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for anal sis 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). • The 8260D surrogate spike recovery of Dibromofluoromethane was outside of acceptance criteria. The samples were approved based on the recoveries of other surrogate standards. 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). The 8260D Continuing Calibration Verification (CCV) exhibited a high bias for lodomethane; however, this analyte was not detected in the associated samples. The spike recoveries for 1,4-Dioxane were outside control limits for the MS sample, the precision between duplicate spikes of 1,4-Dioxane exceeded acceptance criteria. The QC batch was approved based on acceptable LCS recovery of this analyte. An LCS and LCSD were analyzed in place of the MS and MSD for the 8260D SIM analysis. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). GOLDER ASSOCIATES NC, INC. XX % I) G O L D E R QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 4 DC Proper EPA SM 2540C-1997 analytical methods were used for analysis. 5.0 DATA REPORTING DC All analytical reporting associated with the event was performed by the contracted lab. DC Trip, field and/or equipment, and laboratory blank results have all been reported. All detects for blanks are listed below by constituent. All laboratory method blanks, if any, have been `flagged' with a `B' where detected in other samples as appropriate and a laboratory narrative was provided. If the sample was flagged by the laboratory and is not within 5X of the concentration in the blank (or 1 OX for commonly detected laboratory contaminants -acetone, methylene chloride and phthalates), list below with explanation if flags should be removed. If flags need to be added for samples, also list below. • Field Blank o Methylene Chloride detected @ 0.95 ug/L no B flags required o Acetone detected @ 20 ug/L No B flags required 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 (2x) all samples 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 SWSLs 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 dilutions. 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. NC 2L/GWPS/MCL Exceedances ➢ Cobalt (NC 2L = 1 ug/L, Proposed Site -Specific GPS = 117.2 ug/L) • MWA @ 1.41 ug/L (J) • MW-20 @ 9.08 ug/L (J) • MW-23 @ 1.58 (J) • MW-28R @ 3.33 ug/L (J) ➢ Vanadium (NC 2L = 7 ug/L) • MW-25 @ 8.06 ug/L (J) ➢ Lead (Chronic SW Standard 1.25 ug/L, Acute standard = 31.15 ug/L) • SW-2 @ 3.45 ug/L (J) (Upstream) ➢ Copper (Chronic SW Standard 2.7 ug/L) • SW-2 @ 3.25 ug/L (J) (Upstream) — Acute standard = 7.39 ug/L • SW-3 @ 3.71 ug/L (J) — Acute standard = 15.96 ug/L GOLDER ASSOCIATES NC, INC. XX % I) G 4 L D E R QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 4 of 4 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). DC Other report issues/Communications with laboratory/etc.: • Acetone and Methylene chloride, common laboratory contaminants, were detected in the Field Blank; however, this analyte was not detected in the associated samples, reducing the impact of the deviation. 2�SQ pCCgF ENCO Laboratories 9e0 Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Tuesday, August 30, 2022 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 21456818.102, Project Name/Desc: Rowan County Active Landfills - Ind. Parameters. ENCO Workorder(s): CF11230 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, August 19, 2022. 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 27 (� �Eo www.encolabs.com PROJECT NARRATIVE Date: August 30, 2022 Client: Golder Associates, Inc. (G0007) Project: Rowan County Active Landfills - Ind. Parameters. Lab ID: CF11230 Overview 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 lodomethane and Tetra hyd rofu ran; however, these analytes were not detected in the associated samples. The spike recovery for 1,4-Dioxane was outside control limits for the MS sample, the precision between duplicate spikes of 1,4-Dioxane exceeded acceptance criteria. The QC batch was approved based on acceptable LCS recovery of this analyte. An LCS and LCSD were analyzed in place of the MS and MSD for the 8260D SIM analysis. The spike recoveries for Iron and Manganese were outside control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of these elements. The spike recovery for Alkalinity was outside control limits for the MSD sample. The QC batch was approved based on acceptable LCS recovery of this analyte. Quality Control Remarks No Comments Other Comments All samples received under this work order arrived in acceptable conditions. The samples were not checked for chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Amanda Gaines Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 27 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-MW37 Lab ID: CF11230-01 Sampled: 08/16/22 13:32 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/22 08/22/22 09:48 08/22/22 19:28 EPA 310.2 NO PREP 08/30/22 08/23/22 11:43 08/23/22 14:35 EPA 6010D EPA 3005A 02/12/23 08/23/22 20:33 08/25/22 09:57 EPA 6020B EPA 3005A 02/12/23 08/23/22 23:42 08/26/22 15:02 EPA 7470A EPA 245.1 09/13/22 08/19/22 05:07 08/22/22 21:35 EPA 8260D EPA 503013_MS 08/30/22 08/19/22 15:25 08/20/22 03:16 SM 254OC-2011 NO PREP 08/23/22 08/22/22 17:00 08/22/22 17:00 Client ID: 8003-MW17 Lab ID: CF11230-01RE2 Sampled: 08/16/22 13:32 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 503013_MS 08/30/22 08/29/22 11:54 08/29/22 14:37 Client ID: 8003-MW18R2 Lab ID: CF11230-02 Sampled: 08/16/22 14:55 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/13/22 08/22/22 09:48 08/22/22 19:42 EPA 6010D EPA 3005A 02/12/23 08/23/22 20:33 08/25/22 09:59 EPA 6020E EPA 3005A 02/12/23 08/23/22 23:42 08/26/22 15:50 EPA 7470A EPA 245.1 09/13/22 08/19/22 05:07 08/22/22 21:37 EPA 8260D EPA 503013_MS 08/30/22 08/19/22 15:25 08/20/22 03:44 EPA 8260D EPA 503013_MS 08/30/22 08/25/22 00:00 08/25/22 14:04 SM 254OC-2011 NO PREP 08/23/22 08/22/22 17:00 08/22/22 17:00 Client ID: 8003-MW18R2 Lab ID: CF11230-02RE1 Sampled: 08/16/22 14:55 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 310.2 NO PREP 08/30/22 08/23/22 11:43 08/23/22 14:59 Client ID: 8003-MW19R Lab ID: CF11230-03 Sampled: 08/17/22 16:20 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/14/22 08/22/22 09:48 08/22/22 19:57 EPA 310.2 NO PREP 08/31/22 08/23/22 11:43 08/23/22 14:37 EPA 6010D EPA 3005A 02/13/23 08/23/22 20:33 08/25/22 10:09 EPA 6020B EPA 3005A 02/13/23 08/23/22 23:42 08/26/22 15:06 EPA 7470A EPA 245.1 09/14/22 08/19/22 05:07 08/22/22 21:39 EPA 8260D EPA 503013_MS 08/31/22 08/23/22 14:59 08/24/22 02:58 SM 2540C-2011 NO PREP 08/24/22 08/22/22 17:00 08/22/22 17:00 Client ID: 8003-MW19R Lab ID: CF11230-03RE2 Sampled: 08/17/22 16:20 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 8260D EPA 5030B_MS 08/31/22 08/29/22 11:54 08/29/22 15:54 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 27 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-MW37 Lab ID: CF11230-01 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 19.6 1.10 10.0 ug/L EPA 6010D Chloride 4500 J 2200 5000 ug/L EPA 300.0 Copper - Total 1.85 J 1.60 10.0 ug/L EPA 6010D Manganese - Total 14.2 1.50 10.0 ug/L EPA 6010D Total Alkalinity as CaCO3 22000 14000 15000 ug/L EPA 310.2 Zinc - Total 6.40 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW37 Lab ID: CF31230-01RE2 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 0.85 J 0.80 2.0 ug/L EPA 8260D Client ID: 8003-MW18R2 Lab ID: CF11230-02 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 41 0.80 2.0 ug/L EPA 8260D Barium - Total 113 1.10 10.0 ug/L EPA 6010D Benzene 5.5 0.15 1.0 ug/L EPA 8260D Chloride 120000 D 44000 100000 ug/L EPA 300.0 Chromium - Total 11.3 1.40 10.0 ug/L EPA 6010D Cobalt - Total 76.7 1.40 10.0 ug/L EPA 6010D Iron - Total 26700 22.0 50.0 ug/L EPA 6010D Manganese - Total 17300 1.50 10.0 ug/L EPA 6010D Nickel - Total 57.9 2.20 10.0 ug/L EPA 6010D Sulfate as SO4 290000 D 58000 100000 ug/L EPA 300.0 Tetrahydrofuran 14 0.53 1.0 ug/L EPA 8260D Thallium - Total 0.392 J 0.220 2.00 ug/L EPA 6020E Total Dissolved Solids 1600000 50000 50000 ug/L SM 2540C-2011 Zinc - Total 5.59 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-MW38R2 Lab ID: CF31230-02RE1 Analvte Results Flag MDL PQL Units Method Notes Total Alkalinity as CaCO3 940000 D 70000 75000 uq/L EPA 310.2 I Client ID: 8003-MW19R Lab ID: CF11230-03 Analvte Results Flag MDL PQL Units Method Notes Barium - Total 102 1.10 10.0 ug/L EPA 6010D Benzene 1.4 0.15 1.0 ug/L EPA 8260D Chloride 6100 2200 5000 ug/L EPA 300.0 Manganese - Total 24.5 1.50 10.0 ug/L EPA 6010D Mercury - Total 0.223 0.150 0.200 ug/L EPA 7470A Nickel - Total 6.04 J 2.20 10.0 ug/L EPA 6010D Total Alkalinity as CaCO3 65000 14000 15000 ug/L EPA 310.2 Total Dissolved Solids 110000 50000 50000 ug/L SM 2540C-2011 Client ID: 8003-MW19R Lab ID: CF31230-03RE2 Analvte Results Flag MDL PQL Units Method Notes 1,4-Dioxane 7.2 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 4 Of 27 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW17 Lab Sample ID:CF11230-01 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 13:32 Work Order: CF11230 Project: Rowan County Active Landfills - Ind. Sampled By0onathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 5911 Analyte rCAS Numberl Results Flan Units DF MDL I'Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]^ 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,1,1-Trichloroethane [71-55-6]^ 0.12 U ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,1,2,2-Tetrachloroethane [79-34-5]^ 0.28 U ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,1,2-Trichloroethane [79-00-5]^ 0.14 U ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,1-Dichloroethane [75-34-3]^ 0.13 U ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,1-Dichloroethene [75-35-4]^ 0.21 U ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,2,3-Trichloropropane [96-18-4]^ 0.23 U ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,2-Dibromo-3-chloropropane [96-12-8]^ 0.48 U ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,2-Dibromoethane [106-93-4]^ 0.66 U ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,2-Dichlorobenzene [95-50-1]^ 0.19 U ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,2-Dichloroethane [107-06-2]^ 0.21 U ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,2-Dichloropropane [78-87-5]^ 0.10 U ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 1,4-Dichlorobenzene [106-46-7]^ 0.19 U ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 2-Butanone [78-93-3]^ 1.3 U ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 2-Hexanone [591-78-6]^ 0.88 U ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/20/22 03:16 RKY 4-Methyl-2-pentanone [108-10-1]^ 1.1 U ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Acetone [67-64-1]^ 10 U ug/L 1 10 20 2H19027 EPA 8260D 08/20/22 03:16 RKY Acrylonitrile [107-13-1]^ 3.5 U ug/L 1 3.5 10 2H19027 EPA 8260D 08/20/22 03:16 RKY Benzene [71-43-2]^ 0.15 U ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Bromochloromethane [74-97-5]^ 0.48 U ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Bromodichloromethane [75-27-4]^ 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Bromoform [75-25-2]^ 0.22 U ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Bromomethane [74-83-9]^ 0.14 U ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Carbon disulfide [75-15-0]^ 1.5 U ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Carbon tetrachloride [56-23-5]^ 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Chlorobenzene[108-90-7]^ 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Chloroethane [75-00-3]^ 0.23 U ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Chloroform [67-66-3]^ 0.18 U ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Chloromethane [74-87-3]^ 0.13 U ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY cis-1,2-Dichloroethene [156-59-2]^ 0.15 U ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY cis-1,3-Dichloropropene [10061-01-5]^ 0.20 U ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Dibromochloromethane [124-48-1]^ 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Dibromomethane [74-95-3]^ 0.27 U ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Ethylbenzene [100-41-4]^ 0.13 U ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Iodomethane [74-88-4]^ 1.7 U ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Methylene chloride [75-09-2]^ 0.23 U ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Styrene [100-42-5]^ 0.11 U ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Tetrachloroethene [127-18-4]^ 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Tetrahydrofuran [109-99-9]^ 0.53 U ug/L 1 0.53 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Toluene [108-88-3]^ 0.14 U ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY trans-1,2-Dichloroethene [156-60-5]^ 0.21 U ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY trans-1,3-Dichloropropene [10061-02-6]^ 0.15 U ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY trans-1,4-Dichloro-2-butene [110-57-6]^ 0.70 U ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Trichloroethene [79-01-6]^ 0.15 U ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Trichlorofluoromethane [75-69-4]^ 0.24 U ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Vinyl acetate [108-05-4]^ 0.95 U ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/20/22 03:16 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 5 Of 27 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW17 Lab Sample ID: CH1230-01 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 13:32 Work Order: CH1230 Project: Rowan County Active Landfills - Ind. Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/20/22 03:16 RKY Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 55 1 50.0 110 % 53-136 2H19027 EPA 8260D 08120122 03:16 RKY Dlbromofluoromethane 58 1 50.0 116 % 67-129 2H19027 EPA 8260D 08120122 03:16 RKY Toluene-d8 55 1 50.0 109 % 59-134 2H19027 EPA 8260D 08120122 03:16 RKY Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 2H19004 EPA 7470A 08/22/22 21:35 CPH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H23036 EPA 6020B 08/26/22 15:02 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Barium [7440-39-3]^ 19.6 ug/L 1 1.10 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H22035 EPA 6010D 08/25/22 09:57 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H22035 EPA 6010D 08/25/22 09:57 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Cobalt [7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Copper[7440-50-8]^ 1.85 J ug/L 1 1.60 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Manganese [7439-96-5]^ 14.2 ug/L 1 1.50 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Nickel[7440-02-0]^ 2.20 U ug/L 1 2.20 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H23036 EPA 6020B 08/26/22 15:02 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Zinc[7440-66-6]^ 6.40 J ug/L 1 4.40 10.0 2H22035 EPA 6010D 08/25/22 09:57 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Notes Chloride [16887-00-6]^ 4500 J ug/L 1 2200 5000 2H22013 EPA 300.0 08/22/22 19:28 CB Sulfate as SO4 [14808-79-8]^ 2900 U ug/L 1 2900 5000 2H22013 EPA 300.0 08/22/22 19:28 CB Total Alkalinity as CaCO3 [471-34-1]^ 22000 ug/L 1 14000 15000 2H23018 EPA 310.2 08/23/22 14:35 MSE Total Dissolved Solids^ 50000 U ug/L 1 50000 50000 2H22026 SM 2540C-2011 08/22/22 17:00 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 27 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW17 Lab Sample ID: CH1230-01 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 13:32 Work Order: CH1230 Project: Rowan County Active Landfills - Ind. Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,4-Dioxane [123-91-1]A 0.85 J ug/L 1 0.80 2.0 21-129021 EPA 8260D 08/29/22 14:37 JMW Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-d8 4.5 1 5.00 90 % 75-125 2H29021 EPA 6260D 081291221427 JMW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 7 Of 27 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW18R2 Lab Sample ID:CF11230-02 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 14:55 Work Order: CF11230 Project: Rowan County Active Landfills - Ind. Sampled By:Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 5911 Analyte rCAS Numberl Results Flan Units DF MDL I'Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 2H19027 EPA 8260D 08/20/22 03:44 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 2H19027 EPA 8260D 08/20/22 03:44 RKY Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 2H19027 EPA 8260D 08/20/22 03:44 RKY Benzene [71-43-2]A 5.5 ug/L 1 0.15 1.0 21-119027 EPA 8260D 08/20/22 03:44 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Ethylbenzene [100-41-4]A 0.13 U ug/L 1 0.13 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Iodomethane [74-88-4]A 1.7 U ug/L 1 1.7 5.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Tetrahydrofuran [109-99-9]A 14 ug/L 1 0.53 1.0 21-119027 EPA 8260D 08/20/22 03:44 RKY Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 2H19027 EPA 8260D 08/20/22 03:44 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 8 Of 27 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW18R2 Lab Sample ID: CH1230-02 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 14:55 Work Order: CH1230 Project: Rowan County Active Landfills - Ind. Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 2H19027 EPA 8260D 08/20/22 03:44 RKY Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 58 1 50.0 117 % 53-136 2H19027 EPA 8260D 08120122 03:44 RKY Dibromofluoromethane 55 1 50.0 110 % 67-129 2H19027 EPA 8260D 08120122 03:44 RKY Toluene-d8 54 1 50.0 108 % 59-134 2H19027 EPA 8260D 08120122 03:44 RKY Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.150 U ug/L 1 0.150 0.200 2H19004 EPA 7470A 08/22/22 21:37 CPH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H23036 EPA 6020B 08/26/22 15:50 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Barium [7440-39-3]^ 113 ug/L 1 1.10 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H22035 EPA 6010D 08/25/22 09:59 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H22035 EPA 6010D 08/25/22 09:59 JDH Chromium [7440-47-3]^ 11.3 ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Cobalt[7440-48-4]^ 76.7 ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Iron [7439-89-6]^ 26700 ug/L 1 22.0 50.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Manganese [7439-96-5]^ 17300 ug/L 1 1.50 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Nickel[7440-02-O]^ 57.9 ug/L 1 2.20 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Thallium [7440-28-0]^ 0.392 J ug/L 2 0.220 2.00 2H23036 EPA 6020B 08/26/22 15:50 MAM Tin[7440-31-5]^ 2.90 U ug/L 1 2.90 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Zinc[7440-66-6]^ 5.59 J ug/L 1 4.40 10.0 2H22035 EPA 6010D 08/25/22 09:59 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Chloride [16887-00-6]^ 120000 D ug/L 20 44000 100000 2H22013 EPA 300.0 08/22/22 19:42 CB Sulfate as SO4 [14808-79-8]^ 290000 D ug/L 20 58000 100000 2H22013 EPA 300.0 08/22/22 19:42 CB Total Alkalinity as CaCO3 [471-34-1]^ 940000 D ug/L 5 70000 75000 2H23018 EPA 310.2 08/23/22 14:59 MSE Total Dissolved Solids^ 1600000 ug/L 1 50000 50000 2H22026 SM 2540C-2011 08/22/22 17:00 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 27 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW18R2 Lab Sample ID: CH1230-02 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/16/22 14:55 Work Order: CH1230 Project: Rowan County Active Landfills - Ind. Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,4-Dioxane [123-91-1]A 41 ug/L 1 0.80 2.0 21-125007 EPA 8260D 08/25/22 14:04 JMW Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-d8 4.2 1 5.00 84 % 75-125 2H25007 EPA 6260D 0812512214:04 JMW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 of 27 00� www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW19R Lab Sample ID:CF11230-03 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 16:20 Work Order: CF11230 Project: Rowan County Active Landfills - Ind. Sampled By:Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 5911 Analyte rCAS Numberl Results Flan Units DF MDL I'Q Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 0.17 U ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,1,1-Trichloroethane [71-55-6]A 0.12 U ug/L 1 0.12 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,1,2,2-Tetrachloroethane [79-34-5]A 0.28 U ug/L 1 0.28 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,1,2-Trichloroethane [79-00-5]A 0.14 U ug/L 1 0.14 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,1-Dichloroethane [75-34-3]A 0.13 U ug/L 1 0.13 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,1-Dichloroethene [75-35-4]A 0.21 U ug/L 1 0.21 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,2,3-Trichloropropane [96-18-4]A 0.23 U ug/L 1 0.23 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,2-Dibromo-3-chloropropane [96-12-8]A 0.48 U ug/L 1 0.48 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,2-Dibromoethane [106-93-4]A 0.66 U ug/L 1 0.66 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,2-Dichlorobenzene [95-50-1]A 0.19 U ug/L 1 0.19 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,2-Dichloroethane [107-06-2]A 0.21 U ug/L 1 0.21 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,2-Dichloropropane [78-87-5]A 0.10 U ug/L 1 0.10 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 1,4-Dichlorobenzene [106-46-7]A 0.19 U ug/L 1 0.19 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 2-Butanone [78-93-3]A 1.3 U ug/L 1 1.3 5.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 2-Hexanone [591-78-6]A 0.88 U ug/L 1 0.88 5.0 21-123028 EPA 8260D 08/24/22 02:58 RKY 4-Methyl-2-pentanone [108-10-1]A 1.1 U ug/L 1 1.1 5.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Acetone [67-64-1]A 10 U ug/L 1 10 20 21-123028 EPA 8260D 08/24/22 02:58 RKY Acrylonitrile [107-13-1]A 3.5 U ug/L 1 3.5 10 21-123028 EPA 8260D 08/24/22 02:58 RKY Benzene [71-43-2]A 1.4 ug/L 1 0.15 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Bromochloromethane [74-97-5]A 0.48 U ug/L 1 0.48 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Bromodichloromethane [75-27-4]A 0.17 U ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Bromoform [75-25-2]A 0.22 U ug/L 1 0.22 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Bromomethane [74-83-9]A 0.14 U ug/L 1 0.14 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Carbon disulfide [75-15-0]A 1.5 U ug/L 1 1.5 5.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Carbon tetrachloride [56-23-5]A 0.17 U ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Chlorobenzene[108-90-7]A 0.17 U ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Chloroethane [75-00-3]A 0.23 U ug/L 1 0.23 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Chloroform [67-66-3]A 0.18 U ug/L 1 0.18 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Chloromethane [74-87-3]A 0.13 U ug/L 1 0.13 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY cis-1,2-Dichloroethene [156-59-2]A 0.15 U ug/L 1 0.15 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY cis-1,3-Dichloropropene [10061-01-5]A 0.20 U ug/L 1 0.20 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Dibromochloromethane [124-48-1]A 0.17 U ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Dibromomethane [74-95-3]A 0.27 U ug/L 1 0.27 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Ethylbenzene[100-41-4]A 0.13 U ug/L 1 0.13 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Iodomethane[74-88-4]A 1.7 U ug/L 1 1.7 5.0 21-123028 EPA 8260D 08/24/22 02:58 RKY QV-01 Methylene chloride [75-09-2]A 0.23 U ug/L 1 0.23 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Styrene[100-42-5]A 0.11 U ug/L 1 0.11 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Tetrachloroethene [127-18-4]A 0.17 U ug/L 1 0.17 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Tetrahydrofuran [109-99-9]A 0.53 U ug/L 1 0.53 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY QV-01 Toluene [108-88-3]A 0.14 U ug/L 1 0.14 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY trans-1,2-Dichloroethene [156-60-5]A 0.21 U ug/L 1 0.21 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY trans-1,3-Dichloropropene [10061-02-6]A 0.15 U ug/L 1 0.15 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY trans-1,4-Dichloro-2-butene [110-57-6]A 0.70 U ug/L 1 0.70 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Trichloroethene [79-01-6]A 0.15 U ug/L 1 0.15 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Trichlorofluoromethane [75-69-4]A 0.24 U ug/L 1 0.24 1.0 21-123028 EPA 8260D 08/24/22 02:58 RKY Vinyl acetate [108-05-4]A 0.95 U ug/L 1 0.95 5.0 21-123028 EPA 8260D 08/24/22 02:58 RKY FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 Of 27 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW19R Lab Sample ID: CH1230-03 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 16:20 Work Order: CH1230 Project: Rowan County Active Landfills - Ind. Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes Vinyl chloride [75-01-4]^ 0.32 U ug/L 1 0.32 1.0 2H23028 EPA 8260D 08/24/22 02:58 RKY Xylenes (Total) [1330-20-7]^ 0.45 U ug/L 1 0.45 3.0 2H23028 EPA 8260D 08/24/22 02:58 RKY Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes 4-Bromofluorobenzene 55 1 60.0 92 % 53-136 2H23028 EPA 6260D 08124122 02:58 RKY Dlbromofluoromethane 63 1 60.0 105 % 67-129 2H23028 EPA 6260D 08124122 02:58 RKY Toluene-d8 54 1 60.0 91 % 59-134 2H23028 EPA 6260D 08124122 02:58 RKY Metals by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Mercury [7439-97-6]^ 0.223 ug/L 1 0.150 0.200 2H19004 EPA 7470A 08/22/22 21:39 CPH Metals (total recoverable) by EPA 6000/7000 Series Methods ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Ay Notes Antimony [7440-36-0]^ 0.740 U ug/L 2 0.740 2.00 2H23036 EPA 6020B 08/26/22 15:06 MAM Arsenic[7440-38-2]^ 7.60 U ug/L 1 7.60 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Barium [7440-39-3]^ 102 ug/L 1 1.10 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H22035 EPA 6010D 08/25/22 10:09 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H22035 EPA 6010D 08/25/22 10:09 JDH Chromium [7440-47-3]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Cobalt[7440-48-4]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Iron [7439-89-6]^ 22.0 U ug/L 1 22.0 50.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Manganese [7439-96-5]^ 24.5 ug/L 1 1.50 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Nickel[7440-02-O]^ 6.04 J ug/L 1 2.20 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Silver[7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Thallium [7440-28-0]^ 0.220 U ug/L 2 0.220 2.00 2H23036 EPA 6020B 08/26/22 15:06 MAM Vanadium [7440-62-2]^ 1.40 U ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Zinc[7440-66-6]^ 4.40 U ug/L 1 4.40 10.0 2H22035 EPA 6010D 08/25/22 10:09 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flag Units DF MDL POLL Batch Method Analyzed Notes Chloride [16887-00-6]^ 6100 ug/L 1 2200 5000 2H22013 EPA 300.0 08/22/22 19:57 CB Sulfate as SO4 [14808-79-8]^ 2900 U ug/L 1 2900 5000 2H22013 EPA 300.0 08/22/22 19:57 CB Total Alkalinity as CaCO3 [471-34-1]^ 65000 ug/L 1 14000 15000 2H23018 EPA 310.2 08/23/22 14:37 MSE Total Dissolved Solids^ 110000 ug/L 1 50000 50000 2H22026 SM 2540C-2011 08/22/22 17:00 DMJ FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 of 27 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-MW19R Lab Sample ID: CH1230-03 Received: 08/19/22 14:00 Matrix: Ground Water Sampled:08/17/22 16:20 Work Order: CH1230 Project: Rowan County Active Landfills - Ind. Sampled By: Jonathan Serenesics Volatile Organic Compounds by GCMS SIM Isotope Dilution ^ - ENCO Orlando certified analyte [NC 424] Analyte rCAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,4-Dioxane [123-91-1]A 7.2 ug/L 1 0.80 2.0 21-129021 EPA 8260D 08/29/22 15:54 JMW Surrogates Results DF Soike Lv/ % Rec % Rec Limits Batch Method Ana/vzed ffy Notes Toluene-d8 4.5 1 5.00 90 % 75-125 2H29021 EPA 6260D 0812912215:54 JMW FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H19027 - EPA 5030E MS Blank (2111-119027-BLKI) Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 21:30 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 58 ug/L 50.0 115 53-136 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 14 Of 27 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H19027 - EPA 5030E MS - Continued (� �Eo www.encolabs.com Blank (2H19027-BLK3) Continued Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 21:30 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Dibromofluoromethane 52 u91L 50.0 104 67-129 Toluene-& 53 u91L 50.0 105 59-134 LCS (21-119027-BSI) Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 19:35 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 93 75-133 Benzene 19 1.0 ug/L 20.0 95 80-134 Chlorobenzene 18 1.0 ug/L 20.0 92 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 19 1.0 ug/L 20.0 97 74-120 Matrix Spike (2H19027-MS1) Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 20:04 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 93 75-133 Benzene 26 1.0 ug/L 20.0 7.2 92 80-134 Chlorobenzene 18 1.0 ug/L 20.0 0.17 U 92 80-120 Toluene 31 1.0 ug/L 20.0 12 97 71-120 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 95 74-120 Matrix Spike Dup (2H19027-MSD1) Prepared: 08/19/2022 15:25 Analyzed: 08/19/2022 20:33 Source: CF11231-02 Analvte 1,1-Dichloroethene Benzene Chlorobenzene Toluene Trichloroethene Batch 2H23028 - EPA 50308 MS Result 21 27 20 34 20 Flaq POL 1.0 1.0 1.0 1.0 1.0 Units ug/L ug/L ug/L ug/L ug/L Spike Level 20.0 20.0 20.0 20.0 20.0 Source Result 0.21 U 7.2 0.17 U 12 0.15 U %REC 106 100 101 113 101 %REC Limits 75-133 80-134 80-120 71-120 74-120 RPD 14 6 10 10 7 RPD Limit Notes 20 17 16 17 22 Blank (2H23028-BLKi) Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 21:12 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 15 Of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H23028 - EPA 50305 MS - Continued Blank (2H23028-BLKI) Continued Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 21:12 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 59 u91L 60.0 98 53-136 Dibromofluoromethane 65 u91L 60.0 109 67-129 Toluene-d8 55 u91L 60.0 91 59-134 LCS (2H23028-BSI) Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 19:17 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 101 75-133 Benzene 18 1.0 ug/L 20.0 89 80-134 Chlorobenzene 18 1.0 ug/L 20.0 90 80-120 Toluene 20 1.0 ug/L 20.0 99 71-120 Trichloroethene 17 1.0 ug/L 20.0 87 74-120 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 16 of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H23028 - EPA 50305 MS - Continued Matrix Spike (2H23028-MS1) Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 19:46 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 115 75-133 Benzene 19 1.0 ug/L 20.0 0.15 U 96 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 106 71-120 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 95 74-120 Matrix Spike Dup (2H23028-MSD1) Prepared: 08/23/2022 14:59 Analyzed: 08/23/2022 20:15 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 23 1.0 ug/L 20.0 0.21 U 117 75-133 2 20 Benzene 20 1.0 ug/L 20.0 0.15 U 100 80-134 4 17 Chlorobenzene 20 1.0 ug/L 20.0 0.17 U 101 80-120 5 16 Toluene 23 1.0 ug/L 20.0 0.14 U 114 71-120 7 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 102 74-120 7 22 Batch 2H25020 - EPA 50308 MS Blank (2H25020-BLK1) Prepared: 08/25/2022 12:22 Analyzed: 08/25/2022 20:10 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 17 Of 27 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H25020 - EPA 50305 MS - Continued (� �Eo www.encolabs.com Blank (2H25020-BLKI) Continued Prepared: 08/25/2022 12:22 Analyzed: 08/25/2022 20:10 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 57 u9/L 60.0 96 53-136 Dibromofluoromethane 63 u9/L 60.0 105 67-129 Toluene-d8 55 u9/L 60.0 92 59-134 LCS (2H25020-BSI) Prepared: 08/25/2022 12:22 Analyzed: 08/25/2022 18:14 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 97 75-133 Benzene 19 1.0 ug/L 20.0 93 80-134 Chlorobenzene 19 1.0 ug/L 20.0 94 80-120 Toluene 20 1.0 ug/L 20.0 101 71-120 Trichloroethene 19 1.0 ug/L 20.0 93 74-120 Matrix Spike (2H25020-MS1) Prepared: 08/25/2022 12:22 Analyzed: 08/25/2022 18:43 Source: CF12515-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 93 75-133 Benzene 19 1.0 ug/L 20.0 0.15 U 93 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 94 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 103 71-120 Trichloroethene 19 1.0 ug/L 20.0 0.15 U 94 74-120 Matrix Spike Dup (21-125020-MS131) Prepared: 08/25/2022 12:22 Analyzed: 08/25/2022 19:12 Source: CF12515-09 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 0.21 U 97 75-133 5 20 Benzene 19 1.0 ug/L 20.0 0.15 U 93 80-134 0.2 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 94 80-120 0.6 16 Toluene 21 1.0 ug/L 20.0 0.14 U 103 71-120 0.05 17 Trichloroethene 18 1.0 ug/L 20.0 0.15 U 91 74-120 3 22 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 18 Of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals by EPA 6000/7000 Series Methods - Quality Control Batch 2H19004 - EPA 245.1 Blank (2H19004-BLK1) Prepared: 08/19/2022 05:07 Analyzed: 08/22/2022 21:05 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 (21-119004-BSI) Prepared: 08/19/2022 05:07 Analyzed: 08/22/2022 21:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.02 0.200 ug/L 5.00 100 80-120 Matrix Spike (21-119004-MS1) Prepared: 08/19/2022 05:07 Analyzed: 08/22/2022 21:20 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.07 0.200 ug/L 5.00 0.150 U 101 75-125 Matrix Spike Dup (21-119004-MS131) Prepared: 08/19/2022 05:07 Analyzed: 08/22/2022 21:23 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 4.97 0.200 ug/L 5.00 0.150 U 99 75-125 2 25 Post Spike (21-119004-PSI) Prepared: 08/19/2022 05:07 Analyzed: 08/22/2022 21:26 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Mercury 5.31 0.200 ug/L 4.76 0.0402 111 75-125 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H21035 - EPA 3005A Blank (2H22035-BLKI) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:29 Analvte Result Flaq POL Units Arsenic 7.60 U 10.0 ug/L Barium 1.10 U 10.0 ug/L Beryllium 0.160 U 1.00 ug/L Cadmium 0.360 U 1.00 ug/L Chromium 1.40 U 10.0 ug/L Cobalt 1.40 U 10.0 ug/L Copper 1.60 U 10.0 ug/L Iron 22.0 U 50.0 ug/L Lead 3.10 U 10.0 ug/L Manganese 1.50 U 10.0 ug/L Nickel 2.20 U 10.0 ug/L Selenium 6.20 U 10.0 ug/L Silver 1.90 U 10.0 ug/L Tin 2.90 U 10.0 ug/L Vanadium 1.40 U 10.0 ug/L Zinc 4.40 U 10.0 ug/L 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 19 of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H22035 - EPA 3005A - Continued LCS (2H22035-BSI) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:42 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 209 10.0 ug/L 200 105 80-120 Barium 209 10.0 ug/L 200 105 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 20.3 1.00 ug/L 20.0 101 80-120 Chromium 201 10.0 ug/L 200 101 80-120 Cobalt 208 10.0 ug/L 200 104 80-120 Copper 197 10.0 ug/L 200 99 80-120 Iron 1020 50.0 ug/L 1000 102 80-120 Lead 206 10.0 ug/L 200 103 80-120 Manganese 200 10.0 ug/L 200 100 80-120 Nickel 209 10.0 ug/L 200 104 80-120 Selenium 203 10.0 ug/L 200 102 80-120 Silver 200 10.0 ug/L 200 100 80-120 Tin 205 10.0 ug/L 200 102 80-120 Vanadium 199 10.0 ug/L 200 100 80-120 Zinc 210 10.0 ug/L 200 105 80-120 Matrix Spike (2H22035-MS3) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:45 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 184 10.0 ug/L 200 7.60 U 92 75-125 Barium 282 10.0 ug/L 200 81.6 100 75-125 Beryllium 19.7 1.00 ug/L 20.0 0.160 U 98 75-125 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 87 75-125 Chromium 198 10.0 ug/L 200 3.55 97 75-125 Cobalt 206 10.0 ug/L 200 7.54 99 75-125 Copper 182 10.0 ug/L 200 1.60 U 91 75-125 Iron 9910 50.0 ug/L 1000 9200 71 75-125 QM-07 Lead 198 10.0 ug/L 200 3.10 U 99 75-125 Manganese 3360 10.0 ug/L 200 3260 53 75-125 QM-07 Nickel 202 10.0 ug/L 200 4.48 99 75-125 Selenium 180 10.0 ug/L 200 6.20 U 90 75-125 Silver 199 10.0 ug/L 200 1.90 U 99 75-125 Tin 194 10.0 ug/L 200 2.90 U 97 75-125 Vanadium 196 10.0 ug/L 200 1.53 97 75-125 Zinc 204 10.0 ug/L 200 7.82 98 75-125 Matrix Spike Dup (2H22035-MSD1) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:47 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 186 10.0 ug/L 200 7.60 U 93 75-125 1 20 Barium 283 10.0 ug/L 200 81.6 101 75-125 0.2 20 Beryllium 19.5 1.00 ug/L 20.0 0.160 U 97 75-125 1 20 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 87 75-125 0.07 20 Chromium 197 10.0 ug/L 200 3.55 97 75-125 0.7 20 Cobalt 207 10.0 ug/L 200 7.54 100 75-125 0.3 20 Copper 181 10.0 ug/L 200 1.60 U 91 75-125 0.3 20 Iron 9850 50.0 ug/L 1000 9200 66 75-125 0.5 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 20 of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H22035 - EPA 3005A - Continued Matrix Spike Dup (2H22035-MSD3) Continued Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:47 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Lead 195 10.0 ug/L 200 3.10 U 98 75-125 1 20 Manganese 3340 10.0 ug/L 200 3260 42 75-125 0.7 20 QM-07 Nickel 201 10.0 ug/L 200 4.48 98 75-125 0.2 20 Selenium 175 10.0 ug/L 200 6.20 U 88 75-125 3 20 Silver 200 10.0 ug/L 200 1.90 U 100 75-125 0.6 20 Tin 194 10.0 ug/L 200 2.90 U 97 75-125 0.4 20 Vanadium 195 10.0 ug/L 200 1.53 97 75-125 0.8 20 Zinc 204 10.0 ug/L 200 7.82 98 75-125 0.4 20 Post Spike (2H22035-PSI) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:50 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.196 0.0100 mg/L 0.200 -0.0172 98 80-120 Barium 0.295 0.0100 mg/L 0.200 0.0816 107 80-120 Beryllium 0.0205 0.00100 mg/L 0.0200 -0.000101 102 80-120 Cadmium 0.0185 0.00100 mg/L 0.0200 -0.00214 92 80-120 Chromium 0.207 0.0100 mg/L 0.200 0.00355 102 80-120 Cobalt 0.217 0.0100 mg/L 0.200 0.00754 105 80-120 Copper 0.191 0.0100 mg/L 0.200 -0.0170 96 80-120 Iron 10.1 0.0500 mg/L 1.00 9.20 89 80-120 Lead 0.208 0.0100 mg/L 0.200 -6.35E-5 104 80-120 Manganese 3.44 0.0100 mg/L 0.200 3.26 90 80-120 Nickel 0.212 0.0100 mg/L 0.200 0.00448 104 80-120 Selenium 0.194 0.0100 mg/L 0.200 -0.0310 97 80-120 Silver 0.206 0.0100 mg/L 0.200 -0.00183 103 80-120 Tin 0.204 0.0100 mg/L 0.200 -0.00315 102 80-120 Vanadium 0.205 0.0100 mg/L 0.200 0.00153 102 80-120 Zinc 0.214 0.0100 mg/L 0.200 0.00782 103 80-120 Batch 2H23036 - EPA 3005A Blank (2H23036-BLK3) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:06 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 (2H23036-BSI) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:10 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.6 1.00 ug/L 20.0 103 80-120 Thallium 20.5 1.00 ug/L 20.0 103 80-120 Matrix Spike (2H23036-MS3) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:19 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.7 2.00 ug/L 40.0 0.740 U 102 75-125 Thallium 40.9 2.00 ug/L 40.0 0.220 U 102 75-125 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 21 Of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H23036 - EPA 3005A - Continued Matrix Spike Dup (2H23036-MSD3) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:23 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.5 2.00 ug/L 40.0 0.740 U 101 75-125 0.4 20 Thallium 40.2 2.00 ug/L 40.0 0.220 U 101 75-125 2 20 Post Spike (2H23036-PSI) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:27 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 17.8 1.00 ug/L 20.0 0.0204 89 75-125 Thallium 17.4 1.00 ug/L 20.0 0.00489 87 75-125 Classical Chemistry Parameters - Quality Control Batch 2H22013 - NO PREP Blank (2H22013-BLKI) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 16:20 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 (2H22013-BSI) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 16:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 49000 5000 ug/L 50000 97 90-110 Sulfate as SO4 52000 5000 ug/L 50000 103 90-110 Matrix Spike (2H22013-MS1) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 17:03 Source: CF03204-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 34000 5000 ug/L 20000 13000 102 90-110 Sulfate as SO4 42000 5000 ug/L 20000 20000 109 90-110 Matrix Spike (2H22013-MS2) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 18:16 Source: CF08978-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 22000 5000 ug/L 20000 3500 92 90-110 Sulfate as SO4 28000 5000 ug/L 20000 7900 99 90-110 Matrix Spike Dup (2H22013-MSDI) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 17:18 Source: CF03204-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chloride 33000 5000 ug/L 20000 13000 99 90-110 2 10 Sulfate as SO4 41000 5000 ug/L 20000 20000 105 90-110 2 10 Batch 2H22026 - NO PREP Blank (2H22026-BLK1) Prepared & Analyzed: 08/22/2022 17:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 22 Of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 2H22026 - NO PREP - Continued Blank (2H22026-BLKI) Continued Prepared & Analyzed: 08/22/2022 17:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 50000 U 50000 ug/L LCS (2H22026-BS1) Prepared & Analyzed: 08/22/2022 17:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 920 50 mg/L 1000 92 80-120 Duplicate (2H22026-DUP3) Prepared & Analyzed: 08/22/2022 17:00 Source: CF08978-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Dissolved Solids 50000 U 50000 ug/L 50000 U 20 Batch 2H23018 - NO PREP Blank (2H23018-BLKI) Prepared: 08/23/2022 11:43 Analyzed: 08/23/2022 14:29 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 (2H23018-BS1) Prepared: 08/23/2022 11:43 Analyzed: 08/23/2022 14:29 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 110 15 mg/L 100 107 80-120 Matrix Spike (2H23018-MS3) Prepared: 08/23/2022 11:43 Analyzed: 08/23/2022 14:31 Source: CF08978-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 42000 15000 ug/L 37800 14000 U 110 80-120 Matrix Spike Dup (2H23018-MSD3) Prepared: 08/23/2022 11:43 Analyzed: 08/23/2022 14:31 Source: CF08978-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Total Alkalinity as CaCO3 46000 15000 ug/L 37800 14000 U 121 80-120 9 25 QM-07 Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 2H25007 - EPA 5030E MS Blank (2H25007-BLKI) Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 10:12 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 0.80 U 2.0 ug/L Toluene-& 4.4 ug/L 5.00 67 75-125 LCS (2H25007-BS1) Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 07:56 Spike Source %REC RPD Analvte Result Flaq Q Units Level Result %REC Limits RPD Limit Notes FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 23 of 27 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS SIM Isotope Dilution - Quality Control Batch 2H25007 - EPA 5030E MS - Continued LCS (2H25007-BSI) Continued Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 07:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 24 2.0 ug/L 25.0 97 80-133 Toluene-& 4.5 ug/L 5.00 90 75-125 Matrix Spike (2H25007-MS1) Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 08:29 Source: AF06202-02 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 220 10 ug/L 125 180 35 80-133 QM-07 Toluene-d8 22 u91L 25.0 89 75-125 Matrix Spike Dup (2H25007-MSD1) Prepared: 08/25/2022 00:00 Analyzed: 08/25/2022 08:54 Source: AF06202-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 290 10 ug/L 125 180 86 80-133 25 19 QM-11 Toluene-d8 22 u9/L 25.0 86 75-125 Batch 2H29021 - EPA 5030B MS Blank (2H29021-BLK1) Prepared: 08/29/2022 00:00 Analyzed: 08/29/2022 11:55 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 4.3 u91L 5.00 87 75-125 LCS (2H29021-BSI) Prepared: 08/29/2022 00:00 Analyzed: 08/29/2022 08:56 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,4-Dioxane 23 2.0 ug/L 25.0 94 80-133 Toluene-d8 4.2 u9/L 5.00 63 75-125 LCS Dup (2H29021-BSD1) Prepared: 08/29/2022 00:00 Analyzed: 08/29/2022 10:27 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit 1,4-Dioxane 24 2.0 ug/L 25.0 97 80-133 3 19 Toluene-d8 4.3 u91L 5.00 86 75-125 Notes QM-10 QM-10 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 24 Of 27 (� �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-10 LCS/LCSD were analyzed in place of MS/MSD. QM-11 Precision between duplicate matrix spikes of the same sample was outside acceptance limits. QV-01 The associated continuing calibration verification standard exhibited high bias; since the result is ND, there is no impact. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 25 of 27 Ul a 7 m Zj C N 0 a 2 -2 •� COLO al E N n N � rC O m a x N m � c CfJ LLJ S2 cc m Y E m 0 J N 2 a a 00e aiel{n5 X x x m 6H 0yy x x x Q N Oovsc s SCLLVe ep.-g49'Z'U c �]!u!:'1> y o � x X X uZ,1'[i'aS'�5'95 X X a C qd.RJ.uW`e3,n:]•�:]'oJ'1�'J'�J.e9.�k''®'d c U 01 VJIS aOW8'PaPUW3 x K K aa9Za't x,pueddy aosze N m m an E ° U 9 UL C? 0 0 ,� �� p } E °D 0 CD m c U z z m t: eFN 2 ci: 0 �❑ d U a 0. a ¢ m n n �1 CJ r► N © CN LO 0r co {�1 CV). _o � c 9 ?r r yr Q E 4 C1 w U) CO V1 L.7 ✓�� v Qx�s co co d] 2� y m � Q � m S •! m n U� ¢ U F V1 m J m 0 m a J � � U m C E kE i t 00 0 o v a � � Q ff U o U Q C C U � 3 L m m in ff ff ff N E N E E p I p o ff C O ll� m N 0 W 0. N C s C ¢ m S t� m g r N a m m y R � a 5 Page 26 of 2 m 3 v c c� Sample Preservation Verification ENCQ Cary �uco* Work Order: CF11230 Project: Rowan County Active Landfills - Ind. Param Client: Golder Associates, Inc. (GO007) Project #: 21456818.102 Logged In: 19-Aug-22 14:57 Logged By: Samantha L H att Preservation Check Performed By: Date/Time: CF11230-01 Cont Type F'res (pH) Requirement pH Checked / ; Control pH Adjusted DatelTime Adjusted Reagent lased/Comments B 250mL.P+HNO3 <2 Y/ N/ NA Y N NA CF11230-02 Cont T e yA Pres (pH) Requirement pH Checked 1 Control Date/Time pH A�usted Adjusted Reagent Used/Comments B 250mLP+HNO3 <2 Y I N/ NA Y N NA CF11230-03 Cont Type Pres (pH) pH Checked / Control pH Adjy�sted Date�me Adjusted Reagent Used/Comments B 250mLP+HNO3 <2 Y N I NA Y/ N NA Rea ent Name ID 1 2 pH Strip ID: Reagent Name ID 3 4 Reagent Name ID 5 � 6 Page 27 of 27 C�\ELMNTIPrintlwko_PreservationCheek.rpt GOLDER ASSOCIATES NC INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: Rowan County C&D Landfill — Parameters Project Reference Number: GL21456818.001 Sampling Event Date: August 15 — 17, 2022 Report #: CF11230 Review Date: November 4. 2022 \Ntil) GOLDER Initials: DC Review: RPK Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates NC, 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. ANALYTE LIST(S) NC Closed Facility List (.500 Rules) X NC C & D List (New Rules) X NC Appendix I X NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List 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. Project number on report should be GL21456818.001.01 DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. Notes: 2.0 SAMPLE HOLDING TIMES GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL XN % I) G O L D E R LABORATORY DATA REVIEW Page 2 of 3 DC Holding times for extraction and/or analysis were met for each analytical Method (see lab manual for holding times). Notes: 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). ,-The 8260D Continuing Calibration Verification (CCV) exhibited a high bias for lodomethane and Tetrahydrofuran; however, these analytes were not detected in the associated samples. The spike recovery for 1,4-Dioxane was outside control limits for the MS sample, the precision between duplicate spikes of 1,4-Dioxane exceeded acceptance criteria. The QC batch was approved based on acceptable LCS recovery of this analyte. An LCS and LCSD were analyzed in place of the MS and MSD for the 8260D SIM analysis. r The spike recoveries for Iron and Manganese were outside control limits for the MS and MSD samples. The QC batch was approved based on acceptable LCS recovery of these elements. y The spike recovery for Alkalinity was outside control limits for the MSD sample. The QC batch was approved based on acceptable LCS recovery of this analyte. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper 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 10X for commonly detected laboratory contaminants - acetone, methylene chloride and phthalates), list below with explanation if flags should be GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL NN % I) G O L D E R LABORATORY DATA REVIEW Page 3 of 3 removed. If flags need to be added for samples, also list below. • Field Blank o Methylene Chloride detected @ 0.95 ug/L no B flags required o Acetone detected @ 20 ug/L No B flags required 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 (2x) all samples ➢ Sulfate & Chloride (20x) and Alkalinity (5x) in MW-18R2 DC The report provides the reporting limit for each constituent. DC The results were reported at or below their proper reporting limits (e.g., MDLs, MRLs, PQLs, etc.). 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 inorganic and organic constituents were reported above their respective NC 2L Drinking Water Standards in wells, surface points, or field/equipment/trip blanks. NC 2L/GWPS/MCL Exceedances ➢Chromium (NC 2L = 10 ug/L) ➢ MW-18R2 @ 11.3 ug/L ➢ Cobalt (NC 2L = 1 ug/L) ➢ MW-18R2 @ 76.7 ug/L ➢ Manganese (NC 2L = 50 ug/L) ➢ MW-18R2 @ 17300 ug/L ➢ Iron (NC 2L = 300 ug/L) ➢ MW-18R2 @ 26700 ug/L ➢ Benzene (NC 2L = 1 ug/L) ➢ MW-18R2 @ 5.5 ug/L ➢ MW-19R @ 1.4 ug/L, verification 2.1 ug/L ➢1,4-Dioxane (NC 2L = 3 ug/L) ➢ MW-18R2 @ 41 ug/L ➢ MW-19R @ 7.2 ug/L ➢Total Dissolved Solids (NC 2L = 500 mg/L) ➢ MW-18R2 @ 1600 mg/L ➢Sulfate (NC 2L = 250 mg/L) ➢ MW-18R2 @ 290 mg/L DC For sites with historical data, no inorganic and organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). DC Other report issues/Communications with laboratory/etc.: 2�SQ pCCgF ENCO Laboratories 9e0 Accurate. Timely. Responsive. Innovative. 102-A Woodwinds Industrial Court Cary NC, 27511 Phone: 919.467.3090 FAX: 919.467.3515 Tuesday, August 30, 2022 Golder Associates, Inc. (G0007) Attn: Darren Cox 5B Oak Branch Drive Greensboro, NC 27407 RE: Laboratory Results for Project Number: 21456818.101, Project Name/Desc: Rowan County Landfill Leachate ENCO Workorder(s): CF11232 Dear Darren Cox, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, August 19, 2022. 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 17 PROJECT NARRATIVE Date: August 30, 2022 Client: Golder Associates, Inc. (G0007) Project: Rowan County Landfill Leachate Lab ID: CF11232 Overview (� �Eo www.encolabs.com Environmental Conservation Laboratories, Inc. (ENCO) analyzed all submitted samples in accordance with the methods referenced in the laboratory report. Any particular difficulties encountered during sample handling by ENCO are discussed in the QC Remarks section below. Quality Control Samples The spike recoveries for Phosphorus and Sulfate were outside control limits for the MS and MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. Quality Control Remarks No Comments Other Comments Sample 8003-L1 for 8260D was processed at a dilution due to matrix interference, resulting in elevated reporting limits. All samples received under this work order arrived in acceptable conditions. The samples were not checked for chlorine, as it is not required. The analytical data presented in this report are consistent with the methods as referenced in the analytical report. Any exceptions or deviations are noted in the QC remarks section of this narrative or in the Flags/Notes and Definitions section of the report. Released By: Environmental Conservation Laboratories, Inc. Amanda Gaines Project Manager FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 2 of 17 (� �Eo www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE Client ID: 8003-L3 Lab ID: CF11232-01 Sampled: 08/18/22 11:05 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 353.2 NO PREP 08/20/22 11:05 08/19/22 15:13 08/19/22 16:41 EPA 353.2 [CALC] 08/20/22 11:05 08/22/22 09:26 08/22/22 13:10 EPA 353.2 NO PREP 09/15/22 08/22/22 09:26 08/22/22 13:10 EPA 365.4 Same 09/15/22 08/25/22 10:26 08/26/22 13:14 EPA 6010D EPA 3005A 02/14/23 08/23/22 20:33 08/25/22 10:27 EPA 6020B EPA 3005A 02/14/23 08/23/22 23:42 08/26/22 15:11 EPA 8260D EPA 5030B_MIS 09/01/22 08/22/22 17:01 08/23/22 05:35 SM 5210 B-2011 NO PREP 08/20/22 11:05 08/19/22 12:11 08/19/22 12:11 SM 5220D-2011 Same 09/15/22 08/23/22 10:16 08/23/22 12:57 Client ID: 8003-L1 Lab ID: CF11232-01RE1 Sampled: 08/18/22 11:05 Received: 08/19/22 14:00 Parameter Preparation Hold Date/Time(s) Prep Date/Time(s) Analysis Date/Time(s) EPA 300.0 NO PREP 09/15/22 08/24/22 09:38 08/24/22 16:29 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 3 Of 17 (� �Eo www.encolabs.com SAMPLE DETECTION SUMMARY Client ID: 8003-L1 Lab ID: CF11232-01 Analvte Results Flag MDL PQL Units Method Notes Antimony - Total 5.20 ]D 3.70 10.0 ug/L EPA 6020E Arsenic - Total 9.83 J 7.60 10.0 ug/L EPA 6010D Barium - Total 609 1.10 10.0 ug/L EPA 6010D Biochemical Oxygen Demand 62000 2000 2000 ug/L SM 5210 B-2011 Chemical Oxygen Demand 710000 10000 10000 ug/L SM 5220D-2011 Chromium - Total 19.7 1.40 10.0 ug/L EPA 6010D Cobalt - Total 12.4 1.40 10.0 ug/L EPA 6010D Nickel - Total 49.3 2.20 10.0 ug/L EPA 6010D Nitrate as N 0.091 J 0.041 0.10 mg/L EPA 353.2 Nitrate/Nitrite as N 270 41 100 ug/L EPA 353.2 Nitrite as N 170 17 100 ug/L EPA 353.2 Phosphorus - Total 540 25 100 ug/L EPA 365.4 Vanadium - Total 7.50 J 1.40 10.0 ug/L EPA 6010D Zinc - Total 9.19 J 4.40 10.0 ug/L EPA 6010D Client ID: 8003-L1 Lab ID: CF11232-01RE1 Analvte Results Flag MDL PQL Units Method Notes Sulfate as SO4 14000 2900 5000 ug/L EPA 300.0 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 4 Of 17 0Nk"q09 www.encolabs.com ANALYTICAL RESULTS Description: 8003-L1 Lab Sample ID:CF11232-01 Received: 08/19/22 14:00 Matrix: Water Sampled:08/18/22 11:05 Work Order: CF11232 Project: Rowan County Landfill Leachate Sampled By:Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary rertified analyte [NC 591] Analyte ICAS Numberl Results Flag Units DF MDL P L Batch Method Analyzed By Notes 1,1,1,2-Tetrachloroethane [630-20-6]A 1.7 UD ug/L 10 1.7 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,1,1-Trichloroethane [71-55-6]A 1.2 UD ug/L 10 1.2 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,1,2,2-Tetrachloroethane [79-34-5]A 2.8 UD ug/L 10 2.8 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,1,2-Trichloroethane [79-00-5]A 1.4 UD ug/L 10 1.4 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,1-Dichloroethane [75-34-3]^ 1.3 UD ug/L 10 1.3 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,1-Dichloroethene [75-35-4]^ 2.1 UD ug/L 10 2.1 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,2,3-Trichloropropane [96-18-4]^ 2.3 UD ug/L 10 2.3 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,2-Dibromo-3-chloropropane [96-12-8]^ 4.8 UD ug/L 10 4.8 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,2-Dibromoethane[106-93-4]^ 6.6 UD ug/L 10 6.6 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,2-Dichlorobenzene [95-50-1]^ 1.9 UD ug/L 10 1.9 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,2-Dichloroethane [107-06-2]^ 2.1 UD ug/L 10 2.1 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,2-Dichloropropane [78-87-5]^ 1.0 UD ug/L 10 1.0 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 1,4-Dichlorobenzene [106-46-7]^ 1.9 UD ug/L 10 1.9 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 2-Butanone [78-93-3]A 13 UD ug/L 10 13 50 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 2-Hexanone [591-78-6]A 8.8 UD ug/L 10 8.8 50 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 4-Methyl-2-pentanone [108-10-1]^ 11 UD ug/L 10 11 50 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Acetone [67-64-1]A 100 UD ug/L 10 100 200 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Acrylonitrile [107-13-1]^ 35 UD ug/L 10 35 100 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Benzene[71-43-2]A 1.5 UD ug/L 10 1.5 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Bromochloromethane [74-97-5]A 4.8 UD ug/L 10 4.8 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Bromodichloromethane [75-27-4]^ 1.7 UD ug/L 10 1.7 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Bromoform [75-25-2]^ 2.2 UD ug/L 10 2.2 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Bromomethane [74-83-9]A 1.4 UD ug/L 10 1.4 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Carbon disulfide [75-15-0]A 15 UD ug/L 10 15 50 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Carbon tetrachloride [56-23-5]A 1.7 UD ug/L 10 1.7 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Chlorobenzene[108-90-7]A 1.7 UD ug/L 10 1.7 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Chloroethane [75-00-3]A 2.3 UD ug/L 10 2.3 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Chloroform [67-66-3]^ 1.8 UD ug/L 10 1.8 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Chloromethane [74-87-3]A 1.3 UD ug/L 10 1.3 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 cis-1,2-Dichloroethene [156-59-2]^ 1.5 UD ug/L 10 1.5 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 cis-1,3-Dichloropropene [10061-01-5]A 2.0 UD ug/L 10 2.0 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Dibromochloromethane [124-48-1]A 1.7 UD ug/L 10 1.7 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Dibromomethane [74-95-3]A 2.7 UD ug/L 10 2.7 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Ethylbenzene [100-41-4]A 1.3 UD ug/L 10 1.3 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Iodomethane[74-88-4]^ 17 UD ug/L 10 17 50 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Methylene chloride [75-09-2]A 2.3 UD ug/L 10 2.3 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Styrene[100-42-5]A 1.1 UD ug/L 10 1.1 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Tetrachloroethene [127-18-4]A 1.7 UD ug/L 10 1.7 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Toluene [108-88-3]^ 1.4 UD ug/L 10 1.4 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 trans-1,2-Dichloroethene [156-60-5]^ 2.1 UD ug/L 10 2.1 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 trans-1,3-Dichloropropene [10061-02-6]^ 1.5 UD ug/L 10 1.5 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 trans-1,4-Dichloro-2-butene [110-57-6]A 7.0 UD ug/L 10 7.0 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Trichloroethene [79-01-6]^ 1.5 UD ug/L 10 1.5 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Trichlorofluoromethane [75-69-4]^ 2.4 UD ug/L 10 2.4 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Vinyl acetate [108-05-4]A 9.5 UD ug/L 10 9.5 50 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Vinyl chloride [75-01-4]^ 3.2 UD ug/L 10 3.2 10 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 Xylenes (Total) [1330-20-7]A 4.5 UD ug/L 10 4.5 30 21-122033 EPA 8260D 08/23/22 05:35 RKY R-04 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Pager) Of 17 (� �Eo www.encolabs.com ANALYTICAL RESULTS Description: 8003-Ll Lab Sample ID: CH1232-01 Received: 08/19/22 14:00 Matrix: Water Sampled:08/18/22 11:05 Work Order: CF11232 Project: Rowan County Landfill Leachate Sampled By:Jonathan Serenesics Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] Surrogates Results DF Spike Lv/ % Rec % Rec Limits Batch Method Ana/vzed By Notes 4-Bromofluorobenzene 52 1 50.0 105 % 53-136 2H22033 EPA 6260D 08123122 05:35 RKY R-04 Dibromofluoromethane 62 1 50.0 125 % 67-129 2H22033 EPA 6260D 08123122 05:35 RKY R-04 Toluene-d8 54 1 50.0 109 % 59-134 2H22033 EPA 6260D 08123122 0535 RKY R-04 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]^ 5.20 JD ug/L 10 3.70 10.0 2H23036 EPA 6020B 08/26/22 15:11 MAM Arsenic[7440-38-2]^ 9.83 J ug/L 1 7.60 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Barium [7440-39-3]^ 609 ug/L 1 1.10 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Beryllium [7440-41-7]^ 0.160 U ug/L 1 0.160 1.00 2H22035 EPA 6010D 08/25/22 10:27 JDH Cadmium [7440-43-9]^ 0.360 U ug/L 1 0.360 1.00 2H22035 EPA 6010D 08/25/22 10:27 JDH Chromium [7440-47-3]^ 19.7 ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Cobalt[7440-48-4]^ 12.4 ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Copper[7440-50-8]^ 1.60 U ug/L 1 1.60 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Lead [7439-92-1]^ 3.10 U ug/L 1 3.10 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Nickel[7440-02-O]^ 49.3 ug/L 1 2.20 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Selenium [7782-49-2]^ 6.20 U ug/L 1 6.20 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Silver [7440-22-4]^ 1.90 U ug/L 1 1.90 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Thallium [7440-28-0]^ 1.10 UD ug/L 10 1.10 10.0 2H23036 EPA 6020B 08/26/22 15:11 MAM Vanadium [7440-62-2]^ 7.50 J ug/L 1 1.40 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Zinc[7440-66-6]^ 9.19 J ug/L 1 4.40 10.0 2H22035 EPA 6010D 08/25/22 10:27 JDH Classical Chemistry Parameters ^ - ENCO Cary certified analyte [NC 591] Analyte rCAS Numberl Results Flaa Units DF MDL POLL Batch Method Analyzed Ay Notes Biochemical Oxygen Demand^ 62000 ug/L 1 2000 2000 2H19010 SM 5210 B-2011 08/19/22 12:11 JOC Chemical Oxygen Demand^ 710000 ug/L 1 10000 10000 2H23006 SM 5220D-2011 08/23/22 12:57 JOC Nitrate as N [14797-55-8] 0.091 J mg/L 1 0.041 0.10 [CALC] EPA 353.2 08/22/22 13:10 MSE Nitrate/Nitrite as N^ 270 ug/L 1 41 100 2H22010 EPA 353.2 08/22/22 13:10 MSE Nitrite as N [14797-65-0]^ 170 ug/L 1 17 100 2H19025 EPA 353.2 08/19/22 16:41 MSE Phosphorus[7723-14-O]^ 540 ug/L 1 25 100 2H25018 EPA 365.4 08/26/22 13:14 MSE Sulfate as SO4 [14808-79-B]^ 14000 ug/L 1 2900 5000 2H24013 EPA 300.0 08/24/22 16:29 CB FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 6 Of 17 (� �Eo www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H22033 - EPA 50305 MS Blank (2H22033-BLKI) Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 21:54 Analvte Result Flaq POL Units 1, 1, 1,2-Tetrachloroethane 0.17 U 1.0 ug/L 1,1,1-Trichloroethane 0.12 U 1.0 ug/L 1,1,2,2-Tetrachloroethane 0.28 U 1.0 ug/L 1,1,2-Trichloroethane 0.14 U 1.0 ug/L 1,1-Dichloroethane 0.13 U 1.0 ug/L 1,1-Dichloroethene 0.21 U 1.0 ug/L 1,2,3-Trichloropropane 0.23 U 1.0 ug/L 1,2-Dibromo-3-chloropropane 0.48 U 1.0 ug/L 1,2-Dibromoethane 0.66 U 1.0 ug/L 1,2-Dichlorobenzene 0.19 U 1.0 ug/L 1,2-Dichloroethane 0.21 U 1.0 ug/L 1,2-Dichloropropane 0.10 U 1.0 ug/L 1,4-Dichlorobenzene 0.19 U 1.0 ug/L 2-Butanone 1.3 U 5.0 ug/L 2-Hexanone 0.88 U 5.0 ug/L 4-Methyl-2-pentanone 1.1 U 5.0 ug/L Acetone 10 U 20 ug/L Acrylonitrile 3.5 U 10 ug/L Benzene 0.15 U 1.0 ug/L Bromochloromethane 0.48 U 1.0 ug/L Bromodichloromethane 0.17 U 1.0 ug/L Bromoform 0.22 U 1.0 ug/L Bromomethane 0.14 U 1.0 ug/L Carbon disulfide 1.5 U 5.0 ug/L Carbon tetrachloride 0.17 U 1.0 ug/L Chlorobenzene 0.17 U 1.0 ug/L Chloroethane 0.23 U 1.0 ug/L Chloroform 0.18 U 1.0 ug/L Chloromethane 0.13 U 1.0 ug/L cis- 1,2-Dichloroethene 0.15 U 1.0 ug/L cis- 1,3-Dichloropropene 0.20 U 1.0 ug/L Dibromochloromethane 0.17 U 1.0 ug/L Dibromomethane 0.27 U 1.0 ug/L Ethylbenzene 0.13 U 1.0 ug/L Iodomethane 1.7 U 5.0 ug/L Methylene chloride 0.23 U 1.0 ug/L Styrene 0.11 U 1.0 ug/L Tetrachloroethene 0.17 U 1.0 ug/L Toluene 0.14 U 1.0 ug/L trans-1,2-Dichloroethene 0.21 U 1.0 ug/L trans-1,3-Dichloropropene 0.15 U 1.0 ug/L trans-1,4-Dichloro-2-butene 0.70 U 1.0 ug/L Trichloroethene 0.15 U 1.0 ug/L Trichlorofluoromethane 0.24 U 1.0 ug/L Vinyl acetate 0.95 U 5.0 ug/L Vinyl chloride 0.32 U 1.0 ug/L Xylenes (Total) 0.45 U 3.0 ug/L Spike Source %REC RPD Level Result %REC Limits RPD Limit Notes 4-Bromofluorobenzene 56 u9/L 50.0 111 53-136 Dibromofluoromethane 64 u9/L 50.0 127 67-129 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 7 Of 17 QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2H22033 - EPA 50305 MS - Continued (� �Eo www.encolabs.com Blank (2H22033-BLKI) Continued Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 21:54 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Toluene-d8 53 u9/L 50.0 107 59-134 LCS (2H22033-BS1) Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 19:59 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 19 1.0 ug/L 20.0 94 75-133 Benzene 18 1.0 ug/L 20.0 92 80-134 Chlorobenzene 18 1.0 ug/L 20.0 92 80-120 Toluene 20 1.0 ug/L 20.0 102 71-120 Trichloroethene 19 1.0 ug/L 20.0 93 74-120 Matrix Spike (2H22033-MS1) Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 20:27 Source: CF11228-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 20 1.0 ug/L 20.0 0.21 U 101 75-133 Benzene 19 1.0 ug/L 20.0 0.15 U 96 80-134 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 95 80-120 Toluene 21 1.0 ug/L 20.0 0.14 U 105 71-120 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 99 74-120 Matrix Spike Dup (2H22033-MSD1) Prepared: 08/22/2022 17:01 Analyzed: 08/22/2022 20:56 Source: CF11228-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes 1,1-Dichloroethene 21 1.0 ug/L 20.0 0.21 U 105 75-133 4 20 Benzene 20 1.0 ug/L 20.0 0.15 U 98 80-134 1 17 Chlorobenzene 19 1.0 ug/L 20.0 0.17 U 97 80-120 1 16 Toluene 21 1.0 ug/L 20.0 0.14 U 107 71-120 2 17 Trichloroethene 20 1.0 ug/L 20.0 0.15 U 98 74-120 0.8 22 Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H22035 - EPA 3005A Blank (2H22035-BLKI) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:29 Analvte Arsenic Barium Beryllium Cadmium Chromium Cobalt Copper Lead Nickel Selenium Silver Vanadium Result Flaq POL Units 7.60 U 10.0 ug/L 1.10 U 10.0 ug/L 0.160 U 1.00 ug/L 0.360 U 1.00 ug/L 1.40 U 10.0 ug/L 1.40 U 10.0 ug/L 1.60 U 10.0 ug/L 3.10 U 10.0 ug/L 2.20 U 10.0 ug/L 6.20 U 10.0 ug/L 1.90 U 10.0 ug/L 1.40 U 10.0 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 8 Of 17 00� www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H22035 - EPA 3005A - Continued Blank (2H22035-BLKI) Continued Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:29 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Zinc 4.40 U 10.0 ug/L LCS (2H22035-BS1) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:42 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 209 10.0 ug/L 200 105 80-120 Barium 209 10.0 ug/L 200 105 80-120 Beryllium 20.2 1.00 ug/L 20.0 101 80-120 Cadmium 20.3 1.00 ug/L 20.0 101 80-120 Chromium 201 10.0 ug/L 200 101 80-120 Cobalt 208 10.0 ug/L 200 104 80-120 Copper 197 10.0 ug/L 200 99 80-120 Lead 206 10.0 ug/L 200 103 80-120 Nickel 209 10.0 ug/L 200 104 80-120 Selenium 203 10.0 ug/L 200 102 80-120 Silver 200 10.0 ug/L 200 100 80-120 Vanadium 199 10.0 ug/L 200 100 80-120 Zinc 210 10.0 ug/L 200 105 80-120 Matrix Spike (2H22035-MS3) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:45 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Arsenic 184 10.0 ug/L 200 7.60 U 92 75-125 Barium 282 10.0 ug/L 200 81.6 100 75-125 Beryllium 19.7 1.00 ug/L 20.0 0.160 U 98 75-125 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 87 75-125 Chromium 198 10.0 ug/L 200 3.55 97 75-125 Cobalt 206 10.0 ug/L 200 7.54 99 75-125 Copper 182 10.0 ug/L 200 1.60 U 91 75-125 Lead 198 10.0 ug/L 200 3.10 U 99 75-125 Nickel 202 10.0 ug/L 200 4.48 99 75-125 Selenium 180 10.0 ug/L 200 6.20 U 90 75-125 Silver 199 10.0 ug/L 200 1.90 U 99 75-125 Vanadium 196 10.0 ug/L 200 1.53 97 75-125 Zinc 204 10.0 ug/L 200 7.82 98 75-125 Matrix Spike Dup (2H22035-MSD1) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:47 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limi RPD Limit Notes Arsenic 186 10.0 ug/L 200 7.60 U 93 75-125 1 20 Barium 283 10.0 ug/L 200 81.6 101 75-125 0.2 20 Beryllium 19.5 1.00 ug/L 20.0 0.160 U 97 75-125 1 20 Cadmium 17.5 1.00 ug/L 20.0 0.360 U 87 75-125 0.07 20 Chromium 197 10.0 ug/L 200 3.55 97 75-125 0.7 20 Cobalt 207 10.0 ug/L 200 7.54 100 75-125 0.3 20 Copper 181 10.0 ug/L 200 1.60 U 91 75-125 0.3 20 Lead 195 10.0 ug/L 200 3.10 U 98 75-125 1 20 Nickel 201 10.0 ug/L 200 4.48 98 75-125 0.2 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. Page 9 Of 17 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H22035 - EPA 3005A - Continued Matrix Spike Dup (2H22035-MSD3) Continued Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:47 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Selenium 175 10.0 ug/L 200 6.20 U 88 75-125 3 20 Silver 200 10.0 ug/L 200 1.90 U 100 75-125 0.6 20 Vanadium 195 10.0 ug/L 200 1.53 97 75-125 0.8 20 Zinc 204 10.0 ug/L 200 7.82 98 75-125 0.4 20 Post Spike (2H22035-PS1) Prepared: 08/23/2022 23:33 Analyzed: 08/25/2022 09:50 Source: CF11231-02 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Arsenic 0.196 0.0100 mg/L 0.200 -0.0172 98 80-120 Barium 0.295 0.0100 mg/L 0.200 0.0816 107 80-120 Beryllium 0.0205 0.00100 mg/L 0.0200 -0.000101 102 80-120 Cadmium 0.0185 0.00100 mg/L 0.0200 -0.00214 92 80-120 Chromium 0.207 0.0100 mg/L 0.200 0.00355 102 80-120 Cobalt 0.217 0.0100 mg/L 0.200 0.00754 105 80-120 Copper 0.191 0.0100 mg/L 0.200 -0.0170 96 80-120 Lead 0.208 0.0100 mg/L 0.200 -6.35E-5 104 80-120 Nickel 0.212 0.0100 mg/L 0.200 0.00448 104 80-120 Selenium 0.194 0.0100 mg/L 0.200 -0.0310 97 80-120 Silver 0.206 0.0100 mg/L 0.200 -0.00183 103 80-120 Vanadium 0.205 0.0100 mg/L 0.200 0.00153 102 80-120 Zinc 0.214 0.0100 mg/L 0.200 0.00782 103 80-120 Batch 2H23036 - EPA 3005A Blank (2H23036-BLKi) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:06 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 (2H23036-BS1) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:10 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Antimony 20.6 1.00 ug/L 20.0 103 80-120 Thallium 20.5 1.00 ug/L 20.0 103 80-120 Matrix Spike (2H23036-MS1) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:19 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.7 2.00 ug/L 40.0 0.740 U 102 75-125 Thallium 40.9 2.00 ug/L 40.0 0.220 U 102 75-125 Matrix Spike Dup (2H23036-MSD3) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:23 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 40.5 2.00 ug/L 40.0 0.740 U 101 75-125 0.4 20 Thallium 40.2 2.00 ug/L 40.0 0.220 U 101 75-125 2 20 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 10 Of 17 (� �Eo www.encolabs.com QUALITY CONTROL DATA Metals (total recoverable) by EPA 6000/7000 Series Methods - Quality Control Batch 2H23036 - EPA 3005A - Continued Post Spike (2H23036-PS3) Prepared: 08/23/2022 23:42 Analyzed: 08/26/2022 14:27 Source: CF10735-05 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Antimony 17.8 1.00 ug/L 20.0 0.0204 89 75-125 Thallium 17.4 1.00 ug/L 20.0 0.00489 87 75-125 Classical Chemistry Parameters - Quality Control Batch 2H19010 - NO PREP Blank (2H19030-BLK1) Prepared & Analyzed: 08/19/2022 12:11 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Biochemical Oxygen Demand 2000 u 2000 ug/L LCS (2H19010-BSI) Prepared & Analyzed: 08/19/2022 12:11 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Biochemical Oxygen Demand 190000 2000 ug/L 198000 95 85-115 Duplicate (2H19030-DUPIL) Prepared & Analyzed: 08/19/2022 12:11 Source: CF09678-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Biochemical Oxygen Demand 140000 2000 ug/L 130000 7 30 Batch 2H19025 - NO PREP Blank (2H19025-BLK1) Prepared: 08/19/2022 15:13 Analyzed: 08/19/2022 16:40 Spike Source %REC RPD Analvte Result Flaa POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 17 u 100 ug/L LCS (2H19025-BSI) Prepared: 08/19/2022 15:13 Analyzed: 08/19/2022 16:32 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1.1 0.10 mg/L 1.00 110 90-110 Matrix Spike (2H19025-MS1) Prepared: 08/19/2022 15:13 Analyzed: 08/19/2022 16:42 Source: CF11232-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1100 100 ug/L 1000 170 90 90-110 Matrix Spike Dup (2H19025-MSD3) Prepared: 08/19/2022 15:13 Analyzed: 08/19/2022 16:43 Source: CF11232-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrite as N 1100 100 ug/L 1000 170 93 90-110 3 10 Batch 2H22010 - NO PREP FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 11 of 17 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 2H22010 - NO PREP - Continued Blank (2H22010-BLKI) Prepared: 08/22/2022 09:26 Analyzed: 08/22/2022 12:48 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 41 U 100 ug/L LCS (2H22010-BS1) Prepared: 08/22/2022 09:26 Analyzed: 08/22/2022 12:54 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 1.3 0.10 mg/L 1.25 101 90-110 Matrix Spike (2H22030-MS3) Prepared: 08/22/2022 09:26 Analyzed: 08/22/2022 12:57 Source: CF03204-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 530 100 ug/L 521 41 U 101 90-110 Matrix Spike (2H22010-MS2) Prepared: 08/22/2022 09:26 Analyzed: 08/22/2022 13:03 Source: CF09678-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 540 100 ug/L 521 41 U 104 90-110 Matrix Spike Dup (2H22030-MSD3) Prepared: 08/22/2022 09:26 Analyzed: 08/22/2022 12:59 Source: CF03204-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Nitrate/Nitrite as N 520 100 ug/L 521 41 U 101 90-110 0.7 10 Batch 2H22013 - NO PREP Blank (2H22013-BLKI) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 16:20 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 2900 U 5000 ug/L LCS (2H22013-BSI) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 16:34 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 52000 5000 ug/L 50000 103 90-110 Matrix Spike (2H22013-MS3) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 17:03 Source: CF03204-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 42000 5000 ug/L 20000 20000 109 90-110 Matrix Spike (2H22013-MS2) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 18:16 Source: CF08978-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 28000 5000 ug/L 20000 7900 99 90-110 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 12 Of 17 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 2H22O13 - NO PREP - Continued Matrix Spike Dup (2H22013-MSD3) Prepared: 08/22/2022 09:48 Analyzed: 08/22/2022 17:18 Source: CF03204-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 41000 5000 ug/L 20000 20000 105 90-110 2 10 Batch 2H23OO6 - Same Blank (2H23006-BLK1) Prepared: 08/23/2022 10:16 Analyzed: 08/23/2022 12:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chemical Oxygen Demand 10000 U 10000 ug/L LCS (2H23006-BSI) Prepared: 08/23/2022 10:16 Analyzed: 08/23/2022 12:57 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chemical Oxygen Demand 480000 10000 ug/L 500000 96 90-110 Matrix Spike (2H23006-MS1) Prepared: 08/23/2022 10:16 Analyzed: 08/23/2022 12:57 Source: CF10714-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chemical Oxygen Demand 530000 10000 ug/L 526000 10000 U 101 90-110 Matrix Spike Dup (2H23006-MSD3) Prepared: 08/23/2022 10:16 Analyzed: 08/23/2022 12:57 Source: CF10714-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Chemical Oxygen Demand 530000 10000 ug/L 526000 10000 U 101 90-110 0 5 Batch 2H24O13 - NO PREP Blank (2H24013-BLKI) Prepared: 08/24/2022 09:38 Analyzed: 08/24/2022 16:00 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 2900 U 5000 ug/L LCS (2H24013-BSI) Prepared: 08/24/2022 09:38 Analyzed: 08/24/2022 16:14 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 50000 5000 ug/L 50000 100 90-110 Matrix Spike (2H24013-MS3) Prepared: 08/24/2022 09:38 Analyzed: 08/24/2022 16:43 Source: CF11232-01RE3 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 37000 5000 ug/L 20000 14000 114 90-110 QM-07 Matrix Spike Dup (2H24013-MSD3) Prepared: 08/24/2022 09:38 Analyzed: 08/24/2022 16:58 Source: CF11232-OIREI Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Sulfate as SO4 37000 5000 ug/L 20000 14000 116 90-110 0.8 10 QM-07 Batch 2H25O18 - Same FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 13 Of 17 (� �Eo www.encolabs.com QUALITY CONTROL DATA Classical Chemistry Parameters - Quality Control Batch 2H25018 - Same - Continued Blank (2H25018-BLKI) Prepared: 08/25/2022 10:26 Analyzed: 08/26/2022 12:51 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Phosphorus 25 U 100 ug/L LCS (2H25018-BS1) Prepared: 08/25/2022 10:26 Analyzed: 08/26/2022 12:52 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Phosphorus 1700 100 ug/L 1600 106 80-120 Matrix Spike (2H25018-MS1) Prepared: 08/25/2022 10:26 Analyzed: 08/26/2022 12:55 Source: CF09671-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Phosphorus 7800 E 100 ug/L 640 7500 60 80-120 QM-07 Matrix Spike Dup (2H25018-MSD1) Prepared: 08/25/2022 10:26 Analyzed: 08/26/2022 12:57 Source: CF09671-01 Spike Source %REC RPD Analvte Result Flaq POL Units Level Result %REC Limits RPD Limit Notes Phosphorus 7800 E 100 ug/L 640 7500 51 80-120 0.7 25 QM-07 FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 14 Of 17 (� �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. R-04 The Reporting Limits for this analysis are elevated due to sample foaming. FINAL This report relates only to the sample as received by the laboratory, and may only be reproduced in full. I Page 15 of 17 E a x U s z �r a { cs ? o m 2 -2�y� fil ¢ U 7rg° ��'yyJ�� LV . E N � C Qy m .r X b E E E N Cn W N P : Lim O c13) 0 0 0 LC z 0 a n ¢ m m a Q E E o S c I U n s � o" y y Q r = m E m OQ£ ajejlng m 0 m m � 9 g Z y N -LOP i i eyJ M > n 0 c� mm Z'£5£ N se alu}�N x cr Q i = r (�'J�(+j/��i F� aous 7J ❑00 m X ` N C u u m 8MMVJ Q09 o. U E N E E UfAICOS X x a a o v ¢ N xipuaddy (l09Z$ x o w o m m 'p E m a $ a • a s u o o ap h Q C a Q m @ Qf o m _ ., Z is c u, r x CL o m m v O OC1 U ° O m� �y E L) d v ~ otl w r o E E M m c n C Qj ULo F% o H c a y Q a v a z m'm ¢ $ U E �' n oN o� �❑ m u~ N y � w E ¢ CAcn z i- C14 U oq o J 0 u a �� fJCj W .,C U z L o T c C ¢ •gyp m in E y C7 n j 1l n a co z a` La p V© a'� rsU F� v U) 10 - v Sample Preservation Verification ENCQ Cary Work Order: CF11232 Project: Rowan County Landfill Leachate Client: Golder Associates, Inc. (GO007) Project #: 21456818.101 Logged In: 19-Aug-22 14:24 Logged By: Samantha L Hy4tt �O� Preservation Check Performed By: j Date/Time: r��11�/L CF11232-01 Cont Type' Pre$ PH) Requirement'.Contras hecked f� �' Date h6 H AApsted ` Adjusted, Reagent, Used/Comments 9 C 250mLP+H2SQ4 <2 N I NA PY / N NA D 250mLP+HNO3 <2 N 1 NA N! NA- nx— Reagent Narne ID Rea ent Name ID 3 4 Rea ent Name ID 5 6 Page 17 of 17 C:IELMNTIPrintlwko_PreservationCheck. rpt GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: Rowan County Active MSW Landfill - Leachate Project Reference Number: GL21456818.001 Sampling Event Date: August 15 - 18, 2022 Report #: CF11232 Review Date: November 4, 2022 XX%I) GOLDER Initials: DC Review: RPK Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates NC, 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) X NC Appendix I NC Appendix I + Detects NC Appendix II X NC Subtitle D Leachate List Other: 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. Project number on report should be GL21456818.001.01 DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. 2.0 SAMPLE HOLDING TIMES DC Holding times for extraction and/or analysis were met for each analytical GOLDER ASSOCIATES NC, INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 2 of 3 Method (see below for reference). NXtil) GOLDER Review Criteria Method Anal tes Holding Time SW-846 Method 8260 and 8011 VOCs 14 days SW-846 Methods 8270, 8080, 8081, 8082, and 8151 SVOCs, PCBs, pesticides and herbicides 7 days for extraction, 40 days from extraction for anal sis 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 spike recoveries for Phosphorus and Sulfate were outside control limits for the MS and MSD samples. The QC batches were approved based on acceptable LCS recovery of these analytes. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper EPA SM 2540C-1997 analytical methods were used for analysis. 5.0 DATA REPORTING DC All analytical reporting associated with the event was performed by the contracted lab. GOLDER ASSOCIATES NC, INC. XX % I) G 4 L D E R QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 3 of 3 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. ➢ All VOCs, Antimony, Thallium (10x); 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 SWSLs 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 dilutions. 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. 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). DC Other report issues/Communications with laboratory/etc.: ➢ Sample 8003-L1 for 8260D was processed at a dilution due to matrix interference, resulting in elevated reporting limits. urofins Environment Testing America ANALYTICAL REPORT Eurofins Savannah 5102 LaRoche Avenue Savannah, GA 31404 Tel: (912)354-7858 Laboratory Job ID: 680-222852-1 Client Project/Site: CF14781 For: Environmental Conservation Laboratories 102 Woodwinds Industrial Ct, Suite A Cary, North Carolina 27511 IAttt�t__n'' : Amanda Gaines raw Authorized for release by. 1012112022 3:02:43 PM Naomi Flanagan, Project Manager (912)354-7858 Naomi.Flanagan@et.eurofinsus.com Designee for Sheila Hoffman, Project Manager II (912)250-0279 Sheila.Hoffman@et.eurofinsus.com The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. Sample Summary Client: Environmental Conservation Laboratories Project/Site: CF14781 Lab Sample ID Client Sample ID 680-222852-1 8003-MW 19R 680-222852-2 Trip Blank Matrix Water Water Collected Received 10/05/22 10:40 10/12/22 07:00 10/05/22 10:40 10/12/22 07:00 Job ID: 680-222852-1 Page 2 of 17 Eurofins Savannah 10/21 /2022 Method Summary Client: Environmental Conservation Laboratories Project/Site: CF14781 F Job ID: 680-222852-1 U Method Method Description Protocol Laboratory 8260D Volatile Organic Compounds by GC/MS SW846 EET SAV 5030C Purge and Trap SW846 EET SAV Protocol References: SW846 ='Test Methods For Evaluating Solid Waste, Physical/Chemical Methods', Third Edition, November 1986 And Its Updates. Laboratory References: EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Eurofins Savannah Page 3 of 17 10/21 /2022 Definitions/Glossary Client: Environmental Conservation Laboratories Job ID: 680-222852-1 Project/Site: CF14781 Glossary Abbreviation These commonly used abbreviations may or may not be present in this report. rX Listed under the "D" column to designate that the result is reported on a dry weight basis %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) oil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re -analysis, Re -extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level' MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRIES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Savannah Page 4 of 17 10/21 /2022 Case Narrative Client: Environmental Conservation Laboratories Project/Site: CF14781 Job ID: 680-222852-1 Laboratory: Eurofins Savannah Narrative Job Narrative 680-222852-1 F Job ID: 680-222852-1 Receipt The samples were received on 10/12/2022 7:00 AM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperatures of the 3 coolers at receipt time were 2.0°C, 4.1 °C and 4.4°C GC/MS VOA Method 8260D: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with analytical batch 680-745455. Method 8260D: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with analytical batch 680-745582. No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Eurofins Savannah Page 5 of 17 10/21 /2022 Detection Summary Client: Environmental Conservation Laboratories Job ID: 680-222852-1 Project/Site: CF14781 Client Sample ID: 8003-MW19R Lab Sample ID: 680-222852-1 Cmalyte Result Qualifier RL MDL Unit Dil Fac D Method Prep Type Benzene 2.1 1.0 0.27 ug/L 1 8260D Total/NA Client Sample ID: Trip Blank Lab Sample ID: 680-222852-2 CNo Detections This Detection Summary does not include radiochemical test results. Eurofins Savannah Page 6 of 17 10/21 /2022 Client Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14781 Client Sample ID: 8003-MW19R Date Collected: 10/05/22 10:40 Date Received: 10/12/22 07:00 Method: SW846 8260D - Volatile Organic Compounds by GC/MS Analyte Result Qualifier RL Benzene 2.1 1.0 F Job ID: 680-222852-1 Lab Sample ID: 680-222852-1 Matrix: Water MDL Unit D Prepared Analyzed Dil Fac 0.27 ug/L 10/18/2219:33 1 Page 7 of 17 Eurofins Savannah 10/21 /2022 Client Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14781 Client Sample ID: Trip Blank Date Collected: 10/05/22 10:40 Date Received: 10/12/22 07:00 Method: SW846 8260D - Volatile Organic Compounds by GC/MS Analyte Result Qualifier RL Benzene <0.27 1.0 F Job ID: 680-222852-1 Lab Sample ID: 680-222852-2 Matrix: Water MDL Unit D Prepared Analyzed Dil Fac 0.27 ug/L 10/17/2214:18 1 Page 8 of 17 Eurofins Savannah 10/21 /2022 QC Sample Results Client: Environmental Conservation Laboratories Project/Site: CF14781 Method: 8260D - Volatile Organic Compounds by GUMS Lab Sample ID: MB 680-74545519 Matrix: Water Analysis Batch: 745455 MB MB Analyte Result Qualifier Benzene ND Lab Sample ID: LCS 680-745455/5 Matrix: Water Analysis Batch: 745455 Spike Analyte Added Benzene 50.0 Lab Sample ID: LCSD 680-745455/6 Matrix: Water Analysis Batch: 745455 Spike Analyte Added Benzene 50.0 Lab Sample ID: MB 680-745582/10 Matrix: Water Analysis Batch: 745582 MB MB Analyte Result Qualifier Benzene ND Lab Sample ID: LCS 680-745582/6 Matrix: Water Analysis Batch: 745582 Spike Analyte Added Benzene 50.0 Lab Sample ID: LCSD 680-745582/7 Matrix: Water Analysis Batch: 745582 Spike Analyte Added Benzene 50.0 F Job ID: 680-222852-1 Client Sample ID: Method Blank Prep Type: Total/NA MDL Unit D Prepared Analyzed Dil Fac ug/L 10/17/2212:56 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA LCS LCS %Rec Result Qualifier Unit D %Rec Limits 47.85 ug/L 96 70 - 130 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA LCSD LCSD %Rec RPD Result Qualifier Unit D %Rec Limits RPD Limit 47.41 ug/L 95 70 - 130 1 30 Client Sample ID: Method Blank Prep Type: Total/NA MDL Unit D Prepared Analyzed Dil Fac ug/L 10/18/22 14:03 1 Client Sample ID: Lab Control Sample Prep Type: Total/NA LCS LCS %Rec Result Qualifier Unit D %Rec Limits 47.64 ug/L 95 70 - 130 Client Sample ID: Lab Control Sample Dup Prep Type: Total/NA LCSD LCSD %Rec RPD Result Qualifier Unit D %Rec Limits RPD Limit 45.83 ug/L 92 70 - 130 4 30 Page 9 of 17 Eurofins Savannah 10/21 /2022 QC Association Summary Client: Environmental Conservation Laboratories Project/Site: CF14781 GUMS VOA Analysis Batch: 745455 Lab Sample ID Client Sample ID 680-222852-2 Trip Blank MB 680-745455/9 Method Blank LCS 680-745455/5 Lab Control Sample LCSD 680-745455/6 Lab Control Sample Dup Analysis Batch: 745582 Lab Sample ID Client Sample ID 680-222852-1 8003-M W 19 R MB 680-745582/10 Method Blank LCS 680-745582/6 Lab Control Sample LCSD 680-745582/7 Lab Control Sample Dup F Job ID: 680-222852-1 Prep Type Matrix Method Prep Batch Total/NA Water 8260D Total/NA Water 8260D Total/NA Water 8260D Total/NA Water 8260D Prep Type Matrix Method Prep Batch Total/NA Water 8260D Total/NA Water 8260D Total/NA Water 8260D Total/NA Water 8260D Eurofins Savannah Page 10 of 17 10/21/2022 Lab Chronicle Client: Environmental Conservation Laboratories Project/Site: CF14781 Date Collected: 10/05/22 10:40 Date Received: 10/12/22 07:00 Batch Batch Dil Initial Prep Type Type Method Run Factor Amount Total/NA Analysis 8260D 1 5 mL Instrument ID: CMSU Client Sample ID: Trip Blank Date Collected: 10/05/22 10:40 Date Received: 10/12/22 07:00 Batch Batch Dil Initial Prep Type Type Method Run Factor Amount Total/NA Analysis 8260D 1 5 mL Instrument ID: CMSB Laboratory References: EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 F Job ID: 680-222852-1 Lab Sample ID: 680-222852-1 Matrix: Water Final Batch Prepared Amount Number or Analyzed Analyst Lab 5 mL 745582 10/18/22 19:33 P1C EET SAV Lab Sample ID: 680-222852-2 Matrix: Water n Y Final Batch Prepared Amount Number or Analyzed Analyst Lab 5 mL 745455 10/17/22 14:18 Y1S EET SAV Page 11 of 17 Eurofins Savannah 10/21 /2022 SUBCONTRACT ORDER ENCO Cary TALS project. #680240"i='. CF14781 SENDING LABORATORY: RECEIVING LABORATORY: ENCO Cary Test America (GA) 102-A Woodwinds Industrial Court 5102 LaRoche Avenue Cary, NC 27511 Savannah, GA 31404 Phone: 919.467.3090 Phone :(912) 354-7858 Fax: 919.467.3515 Fax: -0 Project Manager: Amanda L. Gaines Project State of Origin: North Carolina Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments 8003-MW19R Ground Water 05-Oct-22 10:40 • Analysis Due Expires Analysis Comments 8260D 19-Oct-22 15:00 19-Oct-22 10:40 If� Benzene only Containers Supplied: 40mLV+HCI (A) 40mLV+HCI (B) 40mLV+HCI (C) Sub Lab ID Originating Lab ID Client Matrix Date Sampled Sample Comments Trip Blank Water 05-Oct-22 10:40 Analysis Due Expires Analysis Comments 8260D 19-Oct-22 15:00 19-Oct-22 10:40 Benzene only Containers Supplied: 40mLV+HCI (A) 40mLV+HCI (B) Date IIIIhIIIl0111P�VIIIIIIIdIIIIIIIIIIV! 680-222852 Chain of Custodv A az> I +.. � I+,1 Page 12 of 17 Page I of 1 10/21 /2022 SUBCONTRACT ORDER ENCO Cary CF14781 Custom Analysis Settings Analysis: 8260D Matrix: Water Units: ug/L Calculation Options ❑ Dry -weight correct MDL/MRL ❑ Dry -weight correct results X❑ Report results to MDL ❑ Report results to MRL Info Synchronize with Base Method Flags ❑ B X1 MDL X❑ Flag Levels ❑ D X❑ MRL ❑X SUR Limit ❑ E RI # X❑ QC Limits ❑ J ❑ Rpt X❑ Analyte Info ❑ U E Dichlorodifluoromethane 0.2 1 25 161 48 25 161 48 Chloromethane 0.13 1 56 171 28 56 171 28 Vinyl chloride 0.32 1 49 150 27 49 150 27 Bromomethane 0.14 1 38 189 27 38 189 27 Chloroethane 0.23 1 45 213 26 45 213 26 Trichlorofluoromethane 0.24 1 68 183 22 68 183 22 1,1-Dichloroethene X 0.21 1 75 133 20 75 133 20 Acetone 10 20 10 158 78 10 158 78 Carbon disulfide 1.5 5 65 173 38 65 173 38 trans-1,2-Dichloroethene 0.21 1 75 139 19 75 139 19 1.1-Dichloroethane 0.13 1 79 141 19 79 141 19 2-Butanone 1.3 5 36 135 19 36 135 19 76 124 15 76 124 15 10 192 20 10 192 20 Dibromochloromethane 0.17 1 73 120 16 73 120 16 123 15 66 123 1 17 Released By Date Received By Date Released By Date Received By Date Page 2 of 3 Page 13 of 17 10/21/2022 SUBCONTRACT ORDER ENCO Cary CF14781 Analysis: 8260D Custom Analysis Settings Matrix: Water Units: ug/L Flags Calculation Options ❑ Dry -weight correct MDL/MRL Synchronize ❑X MDL with Base Method X❑ Flag Levels ❑ B ❑ D ❑ Dry -weight correct results X❑ MRL X❑ SUR Limit ❑ E ❑X Report results to MDL X❑ # X❑ QC Limits ❑ J ❑ Report results to MRL ❑ Rpt ❑X Analyte Info ❑ U Analvte Info Hexachlorobutadiene 0.222 1 63 120 19 63 120 19 1.2.3-Trichlorobenzene 0.012 1 62 120 17 62 120 17 x Xylenes (Total) 0.45 3 77 121 16 77 121 16 Released By Date Received By Date Released By Date Received By Date Page 3 of 3 Page 14 of 17 10r121/2022 m Page 15 of 17 10/21/2022 Login Sample Receipt Checklist Client: Environmental Conservation Laboratories Job Number: 680-222852-1 Login Number: 222852 List Number: 1 Creator: Drake, Victoria Question List Source: Eurofins Savannah Answer Comment Radioactivity wasn't checked or is </= background as measured by a survey N/A meter. The cooler's custody seal, if present, is intact. True Sample custody seals, if present, are intact. True The cooler or samples do not appear to have been compromised or True tampered with. Samples were received on ice. True Cooler Temperature is acceptable. True m Cooler Temperature is recorded. True COC is present. True COC is filled out in ink and legible. True COC is filled out with all pertinent information. True Is the Field Sampler's name present on COC? True There are no discrepancies between the containers received and the COC. True Samples are received within Holding Time (excluding tests with immediate True HTs) Sample containers have legible labels. True Containers are not broken or leaking. True Sample collection date/times are provided. True Appropriate sample containers are used. True Sample bottles are completely filled. True Sample Preservation Verified. True There is sufficient vol. for all requested analyses, incl. any requested True MS/MSDs Containers requiring zero headspace have no headspace or bubble is True <6mm (1/4"). Multiphasic samples are not present. True Samples do not require splitting or compositing. True Residual Chlorine Checked. N/A Eurofins Savannah Page 16 of 17 10/21/2022 Accreditation/Certification Summary Client: Environmental Conservation Laboratories Job ID: 680-222852-1 Project/Site: CF14781 Laboratory: Eurofins Savannah The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State 269 12-31-22 Virginia N ELAP 460161 06-14-23 Eurofins Savannah Page 17 of 17 10/21/2022 GOLDER ASSOCIATES NC INC. QUALITY ASSURANCE & QUALITY CONTROL LABORATORY DATA REVIEW Page 1 of 3 Project Name: Rowan County Resample Project Reference Number. GL21456818.002 Sampling Event Date: October 5, 2022 Report #: CF14781 Review Date: November 4. 2022 \Ntil) GOLDER Initials: DC Review. RPK Person(s) performing the review are to initial each item on this form as acknowledgement of data acceptance, or as acknowledgement of a review issue. In the case of the latter, a brief explanation should follow the applicable item. Golder Associates NC, 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. ANALYTE LIST(S) NC Closed Facility List (.500 Rules) X NC C & D List (New Rules) X NC Appendix I NC Appendix I + Detects NC Appendix II NC Subtitle D Leachate List 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. Project number is not included in Eurofins reports DC Sample receipt condition at laboratory was acceptable. DC Each sample and blank submitted for analysis appears in the report. Notes: 2.0 SAMPLE HOLDING TIMES GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL NN % I) G O L D E R LABORATORY DATA REVIEW Page 2 of 3 DC Holding times for extraction and/or analysis were met for each analytical Method (see lab manual for holding times). Notes: 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). ➢ Method 8260D: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with analytical batch 680-745455. ➢ Method 8260D: Insufficient sample volume was available to perform a matrix spike/matrix spike duplicate (MS/MSD) associated with analytical batch 680-745582. 4.0 ANALYTE LISTS/METHODS DC The proper number of constituents are present for each analyte list as identified above (including detects where applicable). DC Proper 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. GOLDER ASSOCIATES INC. QUALITY ASSURANCE & QUALITY CONTROL NN % I) G O L D E R LABORATORY DATA REVIEW Page 3 of 3 DC The report provides the reporting limit for each constituent DC The results were reported at or below their proper reporting limits (e.g., MDLs, MRLs, PQLs, etc.). 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 inorganic and organic constituents were reported above their respective NC 2L Drinking Water Standards in wells, surface points, or field/equipment/trip blanks. NC 2L/GWPS/MCL Exceedances ➢Benzene (NC 2L = 1ug/L) ➢ MW-19R @ 1.4 ug/L, verification 2.1 ug/L DC For sites with historical data, no inorganic and organic constituents were detected in a well or surface water point at concentrations outside of their historical range (more than 5X previous concentrations or first-time detections). DC Other report issues/Communications with laboratory/etc.: XXtil) GOLDER golder.com