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HomeMy WebLinkAbout3601_CramertonLF_December2022GWMR_FID1830590_20240222 SECOND SEMI-ANNUAL 2022 GROUNDWATER AND SURFACE WATER MONITORING EVENT GASTON COUNTY - CLOSED CRAMERTON LANDFILL CRAMERTON, NORTH CAROLINA PERMIT NO.: 36-01 Prepared for: Mr. Dan Ziehm, PE Gaston County Public Works P.O. Box 1578 Gastonia, North Carolina 28053 July 21, 2023 Prepared by: _____________________________ Ross Klingman, P.G. Senior Geologist SECOND SEMI-ANNUAL 2022 GROUNDWATER AND SURFACE WATER MONITORING EVENT GASTON COUNTY - CLOSED CRAMERTON LANDFILL CRAMERTON, NORTH CAROLINA PERMIT NO.: 36-01 TABLE OF CONTENTS 1.0 Introduction 1 2.0 Background Information 2 3.0 Groundwater and Surface Water Monitoring Activities 5 4.0 Groundwater Flow Direction 6 5.0 Groundwater and Surface Water Analytical Results 7 6.0 Conclusions 8 7.0 Recommendations 10 LIST OF FIGURES 1. Site Location Map 2. Site Layout Map 3. Shallow Groundwater Flow 4. Groundwater Analytical Results LIST OF TABLES 1. Groundwater Gauging Data 2. Field Parameter Data 3. Groundwater Analytical Results 4. Surface Water Analytical Results APPENDICES A. NCSWS Correspondence – PFAS Monitoring Requirements – March 13, 2023 & July 17, 2023 B. Laboratory Data Sheets C. Historical Groundwater Analytical Results Page | 1 SECOND SEMI-ANNUAL 2022 GROUNDWATER AND SURFACE WATER MONITORING EVENT GASTON COUNTY - CLOSED CRAMERTON LANDFILL CRAMERTON, NORTH CAROLINA PERMIT NO.: 36-01 1.0 INTRODUCTION Buxton Environmental, Inc. (BEI) respectfully submits the methods and results of the second semi-annual 2022 groundwater and surface water monitoring activities at the Gaston County - Closed Cramerton Landfill (Permit No.: 36-01) located in along Cramerton Road in Cramerton, North Carolina. The purpose for conducting these activities were to monitor groundwater, surface water and hydrogeologic conditions at the subject site. A site location map and site layout map are provided in Figures 1 and 2, respectively. The groundwater monitoring activities were conducted in general accordance with current North Carolina Department of Environmental Quality, Division of Waste Management-Solid Waste Section (NCSWS) rules and guidelines; the NCSWS groundwater and surface water sampling guidelines dated April 2008; the NCSWS letter dated September 9, 2016 concerning 14-day notification following a groundwater constituent exceedance of North Carolina Groundwater Protection Standards (NCGPSs) for the first-time; a March 23, 2017 memorandum from the NCSWS concerning routine up-keep and maintenance issues at monitoring wells; and a May 29, 2018 memorandum from the NCSWS requiring the analysis of 1,4-dioxane by EPA Method 8260 (VOCs) or EPA Method 8270 (semi-VOCs) utilizing the select ion monitoring (SIM) procedure, the discontinuation of Solid Waste Section Limits (SWSLs, minimum laboratory detection limits) and opting for EPA approved analytical methods sufficiently sensitive to quantify the presence of constituents at or below applicable standards. The NCGPSs are generally defined by the NCSWS as the most protective of the Federal Maximum Contaminant Level for Drinking Water (MCL), the North Carolina 2L Groundwater Quality Standards (2L NCGQSs), or NCGPSs established by the NCSWS (generally obtained from interim established 2L NCGQSs). The NCGPS and 2L NCGQS for non-naturally occurring constituents with no established standard is the practical quantitation limit (PQL). For naturally occurring constituents (i.e. metals), the NCGPS and the 2L NCGQS is the naturally occurring background concentration. For clarity purposes, the NCGPSs and 2L NCGQSs are essentially synonymous with each other. According to the NCGPSs and 2L NCGQSs, non- quantified J-flagged laboratory data (estimated qualified data) which are detected less than the quantifiable PQL, limit of quantitation (LOQ) or reporting limit (RL) (all synonyms) and above the method detection limit (MDL) (lowest non-quantified limits of the laboratory instrumentation) are not considered exceedances of NCGPSs or 2L NCGQSs. The NCGPSs in this report have been updated to reflect current standards issued by the NCSWS on April 11, 2022. On March 2, 2020, Mr. Ervin Lane with the NCSWS indicated that a new policy would allow permitted landfills to discontinue/reduce the required analysis of 1,4-dioxane (by EPA SIM) during routine monitoring at compliance groundwater monitor wells and surface water sample locations, if they have been below the MDL for two (2) consecutive events. On March 13, 2023, the NCSWS issued a memorandum requiring per- and polyfluoroalkyl substances (PFAS) analyses during groundwater, surface water and leachate monitoring conducted after July 1, 2023 at all landfills regulated under 15A NCAC 13B Rules for ,0601 and .0602 (all other landfills not regulated under .0531-0546 and .1600 rules); .0544 and .0545 (construction and demolition (C&D) landfills); and .1623, and .1630 - .1637 (Subtitle D lined municipal solid waste (MSW) landfills. According to the memo, PFAS include a group of manufactured compounds used in aerospace, automotive, textiles, electronics, food packaging, stain-repellent products, non-stick products and firefighting foams that do not breakdown in the environment and Page | 2 bioaccumulate in humans and animals through soil and drinking water and are linked to adverse health effects. On July 20, 2023, Mr. Perry Sugg (NCSWS Environmental Compliance Branch Head), clarified that PFAS monitoring was also required at old closed MSW landfills (this site) that fall under old NCSWS Rule .0500 that defaults to North Carolina 2L groundwater monitoring rules. Water samples should be analyzed by EPA (Draft) Method 1633 (PFAS) by a Department of Defense (DOD) accredited laboratory. The March 13, 2023 memorandum from the NCSWS regarding PFAS monitoring requirements is provided in Appendix A. On July 17, 2023, the NCSWS issued a memorandum clarifying PFAS monitoring requirements at solid waste sanitary landfills. The letter addresses landfill types that should comply; monitoring frequency (minimum of two (2) consecutive sample events, after which the data will be evaluated for future continued monitoring requirements); sampling methodology (including sampling practices and precautions to avoid equipment cross- contamination); analytical method and laboratories (EPA (Draft) Method 1633 for up to 40 PFAS compounds by a DOD accredited laboratory); monitoring locations (groundwater wells, surface water locations, underdrains and leachate); and reporting (routine report preparation and submittal, along with electronic deliverable data (EDD) requirements in the EQUIS format). The July 17, 2023 memorandum from the NCSWS clarifying PFAS monitoring requirements is provided in Appendix A. A summary of background information, and the methods, results, conclusions and recommendations of this investigation are outlined below. Page | 3 2.0 BACKGROUND INFORMATION Based on review of aerial photographs and discussions with Gaston County personnel, the subject facility operated from approximately 1966 until it closed in 1984. The subject property consists of approximately 44 acres and contains a Colonial Pipeline (petroleum) easement across the central portion of the site. Two landfill areas, one located northwest of the pipeline and one located southeast of the pipeline, were filled during operation. To comply with NCSWS guidelines, semi-annual groundwater monitoring was initiated in April 1997 at eight shallow monitor wells MW-1 through MW-8. The groundwater samples have been analyzed for Appendix I VOCs and RCRA metals. Groundwater samples collected at the site during these activities indicated several VOCs and metals above the NCGPSs. Due to the presence of target constituents above the NCGPSs, the NCSWS requested that additional assessment be conducted to determine the extent of affected groundwater and the existence of surrounding water supply wells. According to a March 22, 2001 Site Assessment Activities for Cramerton Closed Landfill report prepared by Resolve Environmental Services, P.A., two deep monitor wells MW-2D and MW-6D and one shallow monitor well MW-7A were installed at the site. The three wells were installed immediately adjacent to monitor wells MW-2, MW-6 and MW-7, respectively. Monitor well MW-7 was located in a small storm water detention pond and was no longer sampled once replacement well MW-7A was installed. MW-2D and MW-6D were installed to assess a deeper portion of the aquifer. Groundwater sample MW-2D indicated the presence of 68 micrograms per liter (ug/l) lead, which was above the NCGPS. Groundwater sample MW-6D indicated the presence of 20 ug/l lead and 9 ug/l benzene, which were above the NCGPSs. Groundwater sample MW-7A indicated the presence of 22 ug/l lead and 6 ug/l 1,2-dichloroethane, which were above the NCGPSs. During the assessment, 34 water supply wells were identified within a 0.5 mile radius of the former landfill. According to the report, these water supply wells were either located upgradient of the landfill or were separated by a shallow groundwater divide. In response to the March 2001 report, the NCSWS requested in a November 8, 2001 letter that additional assessment activities be conducted in the area of monitor well MW-6D and MW-7A to determine the extent of affected groundwater. Gaston County purchased 2.44 acres of property on the eastern corner of the site located immediately adjacent to monitor well MW-7A, to serve as a buffer for affected groundwater detected at the site. On February 8 and 9, 2018, Mr. Ross Klingman, P.G. with BEI conducted routine up-keep and maintenance at on-site monitor wells, in order to comply with the March 23, 2017 memorandum from the NCSWS. During these activities, repairs and up-keep were made at the following monitor wells: MW-1 (the lock latch was repaired, dirt and vegetation were removed from the concrete pad, and a well construction tag was placed on the stand-up cover); MW-2 (dirt and vegetation were removed from the concrete pad, a new expandable well cap was installed at the well head, and a well construction tag was placed on the stand-up cover); MW-2D (dirt and vegetation were removed from the concrete pad); MW-3 (dirt and vegetation were removed from the concrete pad, and a new lock was installed on the stand-up cover lid); MW-4 (dirt and vegetation were removed from the concrete pad and a new expandable well cap was installed at the well head); MW-5 (dirt and vegetation were removed from the cracked original concrete pad, a new concrete veneer was installed over the original cracked concrete pad, and a new lock was placed on the stand-up cover lid); MW-6 (dirt and vegetation were removed from the concrete pad, and a new lock was placed on stand-up cover lid); MW-6D (dirt and vegetation were removed from the concrete pad); MW-7 (dirt and vegetation were removed from the concrete pad); MW-7A (dirt and vegetation were removed from the concrete pad and a new lock was placed on the stand-up cover lid); and MW-8 (dirt and vegetation were removed from the concrete pad). During the well maintenance activities, the latitude and longitude at each groundwater monitor well were obtained with the “My GPS Coordinates” Page | 4 software, and well construction information was obtained from the well tags, which are presented in Table 1. The damaged concrete well cover pad at monitor well MW-6 was repaired by replacement on November 5, 2018. On September 23, 2020, a water supply well located outside of the waste boundary on the northwest corner of the closed Cramerton Landfill (Figure 2) was appropriately abandoned in accordance with NCSWS rules; North Carolina Well Construction Standards (15A NCAC 02C .0113 and .0114); and an August 19, 2020 conversation with Mr. Ervin Lane (NCSWS project manager) regarding the abandonment procedure. In early August 2020, the concrete well house was damaged during mowing activities at the site, which prompted the abandonment of the water supply well. On August 21, 2020, BEI placed the water supply well in temporary closure by installing a PVC well cap secured with metal screws over the galvanized steel well head casing, which was then covered with a faux rock well cover. According to an affixed well tag, the well was installed by Junior Setzer Well Boring Co. (NC Registration No.: 322) on August 15, 1974; had a water yield of 3 gallons per minute; and was constructed with a 6” diameter galvanized steel well surface casing installed to 32’ below grade, and contained a 6” diameter open bore hole well advanced from 32’ to the total well depth of 125’ below grade. The well plumbing/pump had been previously removed from the well. Prior to abandonment, Gaston County Public Works obtained a permit to abandon the well from the Gaston County Department of Health & Human Services. On September 23, 2020, the water supply well was appropriately abandoned by McCall Brothers, Inc. (NC Well Certification No.: 4445-B) of Charlotte, North Carolina with abandonment oversight by Ms. Michelle Sparks with Gaston County Health Department and Mr. Ross Klingman, P.G. with BEI. The well was abandoned by: first disinfecting the well with granulated chlorine, gauging the depth to water in the well (20’ below grade), removing the surface concrete pad around the well head, digging dirt around the well to a depth of 2’ below grade, cutting the upper portion of galvanized steel well casing 2’ below grade with an acetylene torch, slowly pouring thirty-one (31) 50 pound bags of pelletized bentonite chips from the base of the well to the top of the cut steel surface casing, capping the top of the well with one (1) 80 pound bag of concrete, and covering the cured concrete cap with soil the following day. In accordance with the new NCSWS guidance regarding 1,4-dioxane (SIM) monitoring frequency, BEI recommended in the First Semi-Annual 2020 Groundwater and Surface Water Monitoring Event report dated September 1, 2020 that groundwater samples collected at monitor wells MW-2, MW-2D, MW-4, MW-5, MW- 6, MW-6D and MW-7A, and surface water sample Downstream would continue to be analyzed for 1,4-dioxane by EPA Method 8260D (SIM) until 1,4-dioxane has not been detected above the MDL for two (2) consecutive events. All groundwater and surface water samples would continue to be analyzed for 1,4-dioxane (non-SIM) as part of the standard Appendix I VOC analysis (EPA Method 8260D; MDL = 13ug/l and PQL = 50 ug/l), for continued monitoring purposes. During the second semi-annual 2020 monitoring event, surface water samples Upstream and Downstream were added back to the 1,4-dioxane (SIM) sampling frequency, in order to monitor background conditions and surface water quality due to the presence of 1,4-dioxane being detected in groundwater at the site. During second annual 2021 groundwater sampling event, monitor well MW-3 indicated the presence of 15J ug/l 1,4-dioxane (non-SIM), which was below the NCGPS of 3 ug/l since it is J-flagged. Based on this information, MW-3 was recommended to be added back to the 1,4-dioxane (SIM) the semi-annual sampling schedule. Page | 5 3.0 GROUNDWATER AND SURFACE WATER MONITORING ACTIVITIES On December 20 and 21, 2022, BEI conducted the second semi-annual 2022 groundwater and surface water monitoring event at the subject site. Groundwater monitoring activities were conducted at nine (9) shallow monitor wells MW-1, MW-2, MW-3, MW-4, MW-5, MW-6, MW-7A and MW-8, and two (2) deep monitor wells MW-2D and MW-6D. Monitor well MW-5 contained limited water, therefore, was only sampled for Appendix I VOCs. Monitor well MW-1 is an upgradient background well, and the remaining wells are downgradient compliance wells. During these activities, surface water samples, Upstream and Downstream, were also collected from the on-site tributary creek. Prior to conducting the sampling activities, groundwater levels were obtained from each well with a depth-to- water electrode to the nearest 0.01 foot. Following the gauging activities, each well was purged of three well bore volumes of water or until dryness with a disposable Teflon bailer attached to new nylon rope. Purge water was poured on the ground surface at respective well heads. Field parameters including pH, conductivity and temperature were collected following purging at each groundwater monitor well, and prior to sampling at each surface water sample location with a calibrated HANNA-Groline-HI9814 meter. Groundwater gauging and field parameter data are provided in Tables 1 and 2, respectively. The groundwater and surface water samples were analyzed for Appendix I VOCs by EPA Method 8260D (plus 1,4-dioxane (non-SIM)) and 8 RCRA metals by EPA Methods 6020B and 7470A. Groundwater samples collected at monitor well MW-5 were only able to be analyzed for Appendix I VOCs, due to limited water conditions. Groundwater samples collected at MW-2, MW-2D, MW-4, MW-6, MW-6D and MW-7A were also analyzed for 1,4-dioxane by EPA Method 8260D (SIM, to achieve the 3 ug/l LOQ/PQL/RL requirement), since 1,4-dioxane has been detected above the MDL for one or more of the past two (2) consecutive events. Groundwater sample collected at MW-8 was also inadvertently analyzed for 1,4-dioxane by EPA Method 8260D (SIM). Upstream and Downstream surface water samples were also analyzed for 1,4-dioxane by EPA 8260D (SIM), in order to monitor background conditions and surface water quality due to the presence of 1,4- dioxane being detected in groundwater at the site. The samples were analyzed by Pace Analytical Services, LLC (South Carolina License # 329) in West Columbia, South Carolina. The samples were collected in general accordance with NCSWS protocol, immediately poured into laboratory supplied containers, appropriately labeled (with sample identification, sample depth, date and time), placed in a cooler with wet ice, transferred to the laboratory with chain-of-custody documentation. During the groundwater sampling activities, BEI conducted a routine up-keep and maintenance inspection at on-site monitor wells, in order to comply with the March 23, 2017 memorandum from the NCSWS. The monitor wells were locked, appeared to be in good condition, and in compliance with NCSWS standards. Page | 6 4.0 GROUNDWATER FLOW DIRECTION Based on groundwater levels obtained on December 20 and 21, 2023 during the second semi-annual 2022 monitoring event, shallow groundwater flow is to the south southeast and south southwest on the northwest portion of the site; and to the southwest, northwest and south southeast on the southeast portion of the site. A shallow groundwater flow direction map is provided in Figure 3. A horizontal hydraulic gradient of 0.039 feet per feet (ft/ft) was observed between shallow monitor wells MW-1 and MW-3 on the northwest portion of the site; and a horizontal hydraulic gradient of 0.031 feet per feet (ft/ft) was observed between shallow monitor wells MW-6 and MW-5 on the southeastern portion of the site. A downward hydraulic gradient of 0.0048 feet/feet was observed at nested monitor wells MW-2 and MW-2D; and a downward vertical hydraulic gradient of 0.0597 feet/feet was observed at nested monitor wells MW-6 and MW-6D. Upward vertical hydraulic gradients are generally associated with groundwater discharge zones and downward vertical hydraulic gradients were generally associated with groundwater recharge zones. Page | 7 5.0 GROUNDWATER AND SURFACE WATER ANALYTICAL RESULTS The groundwater and surface water analytical results for the second semi-annual 2022 event are presented in Tables 3 and 4, respectively, and are illustrated in Figure 4. Laboratory data sheets are presented in Appendix B. Historical groundwater analytical results are presented in Appendix C. Groundwater samples collected at monitor wells MW-2D, MW-4, MW-6, MW-6D and MW-7A indicated the presence of target constituents above the NCGPSs, which are summarized below. Groundwater sample MW- 2D indicated the presence of 5.4 ug/l 1,4-dioxane (SIM). Groundwater sample MW-4 indicated the presence of 86H ug/l 1,4-dioxane (non-SIM), 110 ug/l 1,4-dioxane (SIM). An H-flag indicates that the sample was analyzed outside of the EPA method holding time. Groundwater sample MW-6 indicated the presence of 4.1 ug/l benzene, 22 ug/l 1,4-dichlorobenzene, 85H ug/l 1,4-dioxane (non-SIM), 120 ug/l 1,4-dioxane (SIM) and 6,200 ug/l barium. Groundwater sample MW-6D indicated the presence of 2.5 ug/l benzene, 12 ug/l 1,4- dichlorobenzene, 260H ug/l 1,4-dioxane (non-SIM) and 330S ug/l 1,4-dioxane (SIM). An S-flag indicates matrix spike/matrix spike duplicate (MS/MSD) failure and outside of control limits, however, the sample passed accepted criteria. Groundwater sample MW-7A indicated the presence of 4.15.5 ug/l benzene, 11 ug/l 1,4- dichlorobenzene, 120 ug/l 1,4-dioxane (non-SIM) and 110 ug/l 1,4-dioxane (SIM). The groundwater samples collected at monitor wells MW-1, MW-2, MW-3, MW-5 and MW-8 did not indicate target constituents above NCGPSs. Monitor wells MW-1 and MW-8, which had been removed from the 1,4-dioxane (SIM) monitoring schedule due to non-detects below MDLs for two (2) or more consecutive background monitoring events, did not indicate 1,4-dioxane (non-SIM) and/or 1,4-dioxane (SIM) above the MDL during the second semi-annual 2022 sampling event, therefore, should continue to not be analyzed for 1,4-dioxane (SIM). No target constituents were detected above NCGPSs for the first-time in any of the groundwater samples collected during the second semi-annual 2022 event, therefore, a 14-Day Notification of Groundwater Protection Standards Exceedance form is not required to be submitted to the NCSWS. The Upstream and Downstream surface water samples did not indicate the presence of target constituents above the lowest of: established North Carolina Surface Water and Wetland Standards (15A NCAC 02B) (Redbook, May 1, 2007)(NC2BRB); North Carolina 15A NCAC 02B Water Quality Standards for Surface Water (June 10, 2019) (NC2B); or North Carolina In-Steam Target Values for Surface Water (NCTSW) for Duharts Creek (Class WS-V water); or EPA National Recommended Water Quality Criteria for Aquatic Life and Human Health (EPAWQC), which are collectively referred to in this report as North Carolina Surface Water and Wetland Standards (NCSWWSs). However, the Downstream surface water sample indicated 2.4J ug/l 1,4- dioxane (SIM) above the MDL, which was below the NCSWWS of 0.35 ug/l since it was an estimated J- flagged result. Page | 8 6.0 CONCLUSIONS On December 20 and 21, 2022, BEI conducted the second semi-annual 2022 groundwater and surface water monitoring activities at the Gaston County - Closed Cramerton Landfill located in Cramerton, North Carolina. A summary of the findings is provided below. • On March 13, 2023, the NCSWS issued a memorandum requiring per- and polyfluoroalkyl substances (PFAS) analyses during groundwater, surface water and leachate monitoring conducted after July 1, 2023 at all landfills regulated under 15A NCAC 13B Rules for ,0601 and .0602 (all other landfills not regulated under .0531-0546 and .1600 rules); .0544 and .0545 (construction and demolition (C&D) landfills); and .1623, and .1630 - .1637 (Subtitle D lined municipal solid waste (MSW) landfills. According to the memo, PFAS include a group of manufactured compounds used in aerospace, automotive, textiles, electronics, food packaging, stain-repellent products, non-stick products and firefighting foams that do not breakdown in the environment and bioaccumulate in humans and animals through soil and drinking water and are linked to adverse health effects. On July 20, 2023, Mr. Perry Sugg (NCSWS Environmental Compliance Branch Head), clarified that PFAS monitoring was also required at old closed MSW landfills (this site) that fall under old NCSWS Rule .0500 that defaults to North Carolina 2L groundwater monitoring rules. Water samples should be analyzed by EPA (Draft) Method 1633 (PFAS) by a Department of Defense (DOD) accredited laboratory. • On July 17, 2023, the NCSWS issued a memorandum clarifying PFAS monitoring requirements at solid waste sanitary landfills. The letter addresses landfill types that should comply; monitoring frequency (minimum of two (2) consecutive sample events, after which the data will be evaluated for future continued monitoring requirements); sampling methodology (including sampling practices and precautions to avoid equipment cross-contamination); analytical method and laboratories (EPA (Draft) Method 1633 for up to 40 PFAS compounds by a DOD accredited laboratory); monitoring locations (groundwater wells, surface water locations, underdrains and leachate); and reporting (routine report preparation and submittal, along with electronic deliverable data (EDD) requirements in the EQUIS format). • During the sampling event, all monitor wells were locked, appeared to be in good condition and in compliance with NCSWS standards. • Shallow groundwater flow is to the south southeast and south southwest on the northwest portion of the site; and to the southwest, northwest and south southeast on the southeast portion of the site. A horizontal hydraulic gradient of 0.039 feet per feet (ft/ft) was observed between shallow monitor wells MW-1 and MW-3 on the northwest portion of the site; and a horizontal hydraulic gradient of 0.031 feet per feet (ft/ft) was observed between shallow monitor wells MW-6 and MW-5 on the southeastern portion of the site. A downward hydraulic gradient of 0.0048 feet/feet was observed at nested monitor wells MW-2 and MW-2D; and a downward vertical hydraulic gradient of 0.0597 feet/feet was observed at nested monitor wells MW-6 and MW-6D. Upward vertical hydraulic gradients are generally associated with groundwater discharge zones and downward vertical hydraulic gradients were generally associated with groundwater recharge zones. Page | 9 • Groundwater samples collected at monitor wells MW-2D, MW-4, MW-6, MW-6D and MW-7A indicated the presence of target constituents above the NCGPSs, which are summarized below. Groundwater sample MW-2D indicated the presence of 5.4 ug/l 1,4-dioxane (SIM). Groundwater sample MW-4 indicated the presence of 86H ug/l 1,4-dioxane (non-SIM), 110 ug/l 1,4-dioxane (SIM). Groundwater sample MW-6 indicated the presence of 4.1 ug/l benzene, 22 ug/l 1,4-dichlorobenzene, 85H ug/l 1,4-dioxane (non-SIM), 120 ug/l 1,4-dioxane (SIM) and 6,200 ug/l barium. Groundwater sample MW-6D indicated the presence of 2.5 ug/l benzene, 12 ug/l 1,4-dichlorobenzene, 260H ug/l 1,4- dioxane (non-SIM) and 330S ug/l 1,4-dioxane (SIM). Groundwater sample MW-7A indicated the presence of 4.15.5 ug/l benzene, 11 ug/l 1,4-dichlorobenzene, 120 ug/l 1,4-dioxane (non-SIM) and 110 ug/l 1,4-dioxane (SIM). The groundwater samples collected at monitor wells MW-1, MW-2, MW-3, MW-5 and MW-8 did not indicate target constituents above NCGPSs. • Monitor wells MW-1 and MW-8, which had been removed from the 1,4-dioxane (SIM) monitoring schedule due to non-detects below MDLs for two (2) or more consecutive background monitoring events, did not indicate 1,4-dioxane (non-SIM) and/or 1,4-dioxane (SIM) above the MDL during the second semi-annual 2022 sampling event, therefore, should continue to not be analyzed for 1,4-dioxane (SIM). • No target constituents were detected above NCGPSs for the first-time in any of the groundwater samples collected during the second semi-annual 2022 event, therefore, a 14-Day Notification of Groundwater Protection Standards Exceedance form is not required to be submitted to the NCSWS. • The Upstream and Downstream surface water samples did not indicate the presence of target constituents above NCSWWSs. However, the Downstream surface water sample indicated 2.4J ug/l 1,4-dioxane (SIM) above the MDL, which was below the NCSWWS of 0.35 ug/l since it was an estimated J-flagged result. Page | 10 7.0 RECOMMENDATIONS Based on the findings of this assessment, Buxton Environmental, Inc. makes the following recommendations. • Semi-annual groundwater and surface water monitoring, including Appendix I VOCs, RCRA metals and 1,4-dioxane (non-SIM/SIM) analysis, should continue to be conducted at the Closed Cramerton Landfill. In addition, groundwater and surface water samples should be analyzed for PFAS compounds by EPA (Draft) Method 1633 by a DOD accredited laboratory for the next two (2) semi-annual monitoring events, in accordance with the March 13 and July 17, 2023 memorandums issued by the NCSWS. The next semi- annual sampling event is anticipated to be conducted in August 2023. • Groundwater samples collected at monitor wells MW-2, MW-2D, MW-3, MW-4, MW-5, MW-6, MW-6D and MW-7A should continue to be analyzed for 1,4-dioxane by EPA Method 8260D (SIM) until 1,4- dioxane has not been detected above the MDL for two (2) consecutive events. In addition, surface water samples Upstream and Downstream should be analyzed for 1,4-dioxane (SIM), in order to monitor background conditions and surface water quality due to the presence of 1,4-dioxane being detected in groundwater at the site. All groundwater and surface water samples will continue to be analyzed for 1,4- dioxane (non-SIM) as part of the standard Appendix I VOC analysis (EPA Method 8260D; MDL = 13ug/l and PQL = 50 ug/l), for continued monitoring purposes. • A copy of this report should be forwarded to the NCSWS for their review. rk:reports:cramertonrpt.1222 FIGURES TABLES APPENDIX A. NCSWS CORRESPONDENCE PFAS MONITORING REQUIREMENTS MARCH 13, 2023 & July 17, 2023 APPENDIX B LABORATORY DATA SHEETS The electronic signature above is the equivalent of a handwritten signature. This report shall not be reproduced,except in its entirety,without the written approval of Pace Analytical Services,LLC. Pace Analytical Services,LLC (formerly Shealy Environmental Services,Inc.) 106 Vantage Point Drive West Columbia,SC 29172 Tel:803-791-9700 Fax:803-791-9111 www.pacelabs.com Report of Analysis Buxton Environmental PO Box 11550 Charlotte,NC 28220 Attention:Ross Klingman Project Name:Gaston Co -Cramerton Landfill Project Number:NC Permit Lot Number:XL23005 Date Completed:01/14/2023 01/18/2023 11:44 PM Approved and released by: Project Manager II:Cathy S.Dover Page 1 of 96 PACE ANALYTICAL SERVICES,LLC SC DHEC No:32010001 NELAC No:E87653 NC DENR No:329 NC Field Parameters No:5639 Pace Analytical Services,LLC (formerly Shealy Environmetal Services,Inc.) 106 Vantage Point Drive West Columbia,SC 29172 (803)791-9700 Fax (803)791-9111 www.pacelabs.com Case Narrative Buxton Environmental Lot Number:XL23005 This Report of Analysis contains the analytical result(s)for the sample(s)listed on the Sample Summary following this Case Narrative.The sample receiving date is documented in the header information associated with each sample. All results listed in this report relate only to the samples that are contained within this report.Where sampling is conducted by the client,results relate to the accuracy of the information provided,and as the samples are received. Sample receipt,sample analysis,and data review have been performed in accordance with the most current approved The NELAC Institute (TNI)standards,the Pace Analytical Services,LLC ("Pace") Laboratory Quality Manual,standard operating procedures (SOPs),and Pace policies.Any exceptions to the TNI standards,the Laboratory Quality Manual,SOPs or policies are qualified on the results page or discussed below. Pace is a TNI accredited laboratory;however,the following analyses are currently not listed on our TNI scope of accreditation:Drinking Water:VOC (excluding BTEX,MTBE,Naphthalene,&1,2- dichloroethane)EPA 524.2,E.coli and Total coliforms SM 9223 B-2004,Solid Chemical Material:TOC Walkley-Black,Biological Tissue:All,Non-Potable Water:SGT-HEM EPA 1664B,Silica EPA 200.7, Boron,Calcium,Silicon,Strontium EPA 200.8,Bicarbonate,Carbonate,and Hydroxide Alkalinity SM 2320 B-2011,SM 9221 C E-2006 &SM 9222D-2006,Strontium SW-846 6010D,VOC SM 6200 B-2011,Fecal Coliform Colilert-18. VOA 8260D Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD)for analytical batch 63598.An LCS/LCSD was run in lieu of an MS/MSD.Associated samples: XL23005-001 (MW-1)(Run 1)(Analysis Batch 63598) XL23005-002 (MW-2)(Run 1)(Analysis Batch 63598) XL23005-003 (MW-2D)(Run 1)(Analysis Batch 63598) XL23005-004 (MW-3)(Run 1)(Analysis Batch 63598) XL23005-005 (MW-4)(Run 1)(Analysis Batch 63598) XL23005-006 (MW-5)(Run 1)(Analysis Batch 63598) XL23005-007 (MW-6)(Run 1)(Analysis Batch 63598) Sample XL23005-006 (MW-5)had an air bubble >6mm in the sample vial. The laboratory control sample (LCS)and /or laboratory control sample duplicate (LCSD)for analytical batch 63598 exceeded acceptance criteria for the following analytes:Acetone,acrylonitrile,1,2-dibromo- 3-chloropropane,2-hexanone and 4-methyl-2-pentanone.These analytes were biased high and were not detected in the associated samples:XL23005-001,XL23005-002,XL23005-003,XL23005-004,XL23005- 005,XL23005-006,and XL23005-007. XL23005-001 (MW-1)(Run 1)(Analysis Batch 63598) XL23005-002 (MW-2)(Run 1)(Analysis Batch 63598) XL23005-003 (MW-2D)(Run 1)(Analysis Batch 63598) XL23005-004 (MW-3)(Run 1)(Analysis Batch 63598) XL23005-005 (MW-4)(Run 1)(Analysis Batch 63598) Page 2 of 96 PACE ANALYTICAL SERVICES,LLC SC DHEC No:32010001 NELAC No:E87653 NC DENR No:329 NC Field Parameters No:5639 Pace Analytical Services,LLC (formerly Shealy Environmetal Services,Inc.) 106 Vantage Point Drive West Columbia,SC 29172 (803)791-9700 Fax (803)791-9111 www.pacelabs.com XL23005-006 (MW-5)(Run 1)(Analysis Batch 63598) XL23005-007 (MW-6)(Run 1)(Analysis Batch 63598) Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD)for analytical batch 64027.An LCS/LCSD was run in lieu of an MS/MSD.Associated sample:XL23005-012 (Upstream)(Run 1)(Analysis Batch 64027). The laboratory control sample (LCS)and /or laboratory control sample duplicate (LCSD)for analytical batch 64027 exceeded acceptance criteria for Acetone and 1,4-Dioxane.These analyte were biased high and were not detected in the associated sample:XL23005-012 (Upstream)(Run 1)(Analysis Batch 64027). The laboratory control sample duplicate (LCSD)for analytical batch 64120 exceeded acceptance criteria for the following analytes:Acetone,2-Hexanone and 4-Methyl-2-pentanone.These analytes were biased high and were not detected in the associated samples:XL23005-011 (Downstream)(Run 1)(Analysis Batch 64120). Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD)for analytical batch 64120.An LCS/LCSD was run in lieu of an MS/MSD.Associated samples: XL23005-004 (MW-3)(Run 2)(Analysis Batch 64120) XL23005-007 (MW-6)(Run 2)(Analysis Batch 64120) XL23005-011 (Downstream)(Run 1)(Analysis Batch 64120) Reanalysis for the following samples was performed outside of the analytical holding time for 1,4-dioxane which failed above CCV criteria during Run1 analysis and was detected in the samples:XL23005-008 and XL23005-009. Reanalysis of the following sample was performed outside of the analytical holding time for 1,4-dioxane which was not detected in the sequence LOQ during Run1 analysis:XL23005-006 XL23005-006 (MW-5)(Run 2)(Analysis Batch 64454) XL23005-008 (MW-6D)(Run 2)(Analysis Batch 64454) XL23005-009 (MW-7A)(Run 2)(Analysis Batch 64454) Insufficient sample volume was provided to perform matrix spike/matrix spike duplicate (MS/MSD)for analytical batch 64447.An LCS/LCSD was run in lieu of an MS/MSD.Associated samples:XL23005- 005 (MW-4)(Run 3)(Analysis Batch 64447)and XL23005-007 (MW-6)(Run 3)(Analysis Batch 64447). Reanalysis of the following samples was performed outside of the analytical holding time:XL23005-005 and XL23005-007.1,4-dioxane failed below CCV criteria during Run1 analysis and was not detected in the sequence LOQ.The Run2 resulted above criteria for 1,4-dioxane in the CCV and was detected in the sample.The sample was analyzed a third time to confirm the 1,4-dioxane detection in the Run2. XL23005-005 (MW-4)(Run 3)(Analysis Batch 64447) XL23005-007 (MW-6)(Run 3)(Analysis Batch 64447) Reanalysis of the following samples was performed outside of the analytical holding time for 1,4-Dioxane due to low failure in the CCV and non-detect in the LOQ:XL23005-001,XL23005-002,and XL23005-003. XL23005-001 (MW-1)(Run 2)(Analysis Batch 64116) XL23005-002 (MW-2)(Run 2)(Analysis Batch 64116) XL23005-003 (MW-2D)(Run 2)(Analysis Batch 64116) Page 3 of 96 PACE ANALYTICAL SERVICES,LLC SC DHEC No:32010001 NELAC No:E87653 NC DENR No:329 NC Field Parameters No:5639 Pace Analytical Services,LLC (formerly Shealy Environmetal Services,Inc.) 106 Vantage Point Drive West Columbia,SC 29172 (803)791-9700 Fax (803)791-9111 www.pacelabs.com 1,4-Dioxane SIM 8260D The sample duplicate and matrix spike (DUP/MS)were not reported in BATCH:XQ63746 due to analyst error.The samples affected:XL23005-002,XL23005-003,XL23005-005,XL23005-007,XL23005-008, XL23005-009,XL23005-010,XL23005-011,and XL23005-012.The CCV and LCS associated with BATCH:XQ63746 passed acceptance criteria,therefore the data has been reported. XL23005-002 (MW-2)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate XL23005-003 (MW-2D)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate XL23005-005 (MW-4)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate XL23005-007 (MW-6)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate XL23005-008 (MW-6D)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate XL23005-009 (MW-7A)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate XL23005-010 (MW-8)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate XL23005-011 (Downstream)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate XL23005-012 (Upstream)(Run 1)(Analysis Batch 63746)1,4-Dioxane (SIM)1,2-DCA-d4 surrogate The MS/MSD for batch 63929 and parent sample XL23005-008 (MW-6D),recovered outside the control limits.The associated LCS passed acceptance criteria. If you have any questions regarding this report,please contact the Pace Project Manager listed on the cover page. Page 4 of 96 PACE ANALYTICAL SERVICES, LLC Sample Summary Buxton Environmental Lot Number: XL23005 Project Name: Gaston Co - Cramerton Landfill Project Number: NC Permit: 3601 Sample Number Sample ID Matrix Date Sampled Date Received 001 12/20/2022 1330MW-1 Aqueous 12/23/2022 002 12/20/2022 1400MW-2 Aqueous 12/23/2022 003 12/20/2022 1430MW-2D Aqueous 12/23/2022 004 12/21/2022 1530MW-3 Aqueous 12/23/2022 005 12/20/2022 1500MW-4 Aqueous 12/23/2022 006 12/21/2022 1430MW-5 Aqueous 12/23/2022 007 12/21/2022 1700MW-6 Aqueous 12/23/2022 008 12/21/2022 1730MW-6D Aqueous 12/23/2022 009 12/21/2022 1630MW-7A Aqueous 12/23/2022 010 12/21/2022 1600MW-8 Aqueous 12/23/2022 011 12/21/2022 1500DownstreamAqueous 12/23/2022 012 12/20/2022 1245UpstreamAqueous 12/23/2022 (12 samples) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 5 of 96 PACE ANALYTICAL SERVICES, LLC Detection Summary Buxton Environmental Lot Number: XL23005 Project Name: Gaston Co - Cramerton Landfill Project Number: NC Permit: 3601 Sample Sample ID Matrix Parameter Method Result Q Units Page 001 MW-1 Aqueous Barium 6020B 61 ug/L 10 001 MW-1 Aqueous Chromium 6020B 3.2 J ug/L 10 001 MW-1 Aqueous Lead 6020B 0.88 J ug/L 10 002 MW-2 Aqueous Arsenic 6020B 9.5 ug/L 14 002 MW-2 Aqueous Barium 6020B 110 ug/L 14 002 MW-2 Aqueous Cadmium 6020B 0.14 J ug/L 14 002 MW-2 Aqueous Lead 6020B 1.4 ug/L 14 003 MW-2D Aqueous 1,4-Dichlorobenzene 8260D 0.46 J ug/L 15 003 MW-2D Aqueous 1,1-Dichloroethane 8260D 1.1 ug/L 15 003 MW-2D Aqueous 1,1-Dichloroethene 8260D 0.87 J ug/L 15 003 MW-2D Aqueous cis-1,2-Dichloroethene 8260D 0.82 J ug/L 15 003 MW-2D Aqueous 1,4-Dioxane 8260D (SIM)5.4 ug/L 17 003 MW-2D Aqueous Barium 6020B 24 ug/L 18 004 MW-3 Aqueous Barium 6020B 41 ug/L 21 004 MW-3 Aqueous Cadmium 6020B 0.18 J ug/L 21 004 MW-3 Aqueous Chromium 6020B 2.8 J ug/L 21 004 MW-3 Aqueous Lead 6020B 2.3 ug/L 21 005 MW-4 Aqueous Benzene 8260D 0.51 J ug/L 22 005 MW-4 Aqueous Chlorobenzene 8260D 8.8 ug/L 22 005 MW-4 Aqueous 1,2-Dichlorobenzene 8260D 0.94 J ug/L 22 005 MW-4 Aqueous 1,4-Dichlorobenzene 8260D 5.1 ug/L 22 005 MW-4 Aqueous 1,4-Dioxane 8260D 86 H ug/L 22 005 MW-4 Aqueous 1,4-Dioxane 8260D (SIM)110 ug/L 24 005 MW-4 Aqueous Barium 6020B 270 ug/L 25 005 MW-4 Aqueous Cadmium 6020B 0.14 J ug/L 25 005 MW-4 Aqueous Selenium 6020B 1.7 J ug/L 25 007 MW-6 Aqueous Benzene 8260D 4.1 ug/L 28 007 MW-6 Aqueous Chlorobenzene 8260D 2.4 ug/L 28 007 MW-6 Aqueous Chloroethane 8260D 0.67 J ug/L 28 007 MW-6 Aqueous 1,2-Dichlorobenzene 8260D 0.78 J ug/L 28 007 MW-6 Aqueous 1,4-Dichlorobenzene 8260D 22 ug/L 28 007 MW-6 Aqueous 1,1-Dichloroethane 8260D 0.89 J ug/L 28 007 MW-6 Aqueous cis-1,2-Dichloroethene 8260D 0.79 J ug/L 28 007 MW-6 Aqueous 1,4-Dioxane 8260D 85 H ug/L 28 007 MW-6 Aqueous Ethylbenzene 8260D 0.42 J ug/L 28 007 MW-6 Aqueous Toluene 8260D 0.43 J ug/L 28 007 MW-6 Aqueous Vinyl chloride 8260D 0.67 J ug/L 29 007 MW-6 Aqueous Xylenes (total)8260D 1.8 ug/L 29 007 MW-6 Aqueous 1,4-Dioxane 8260D (SIM)120 ug/L 30 007 MW-6 Aqueous Arsenic 6020B 2.3 ug/L 31 007 MW-6 Aqueous Barium 6020B 6200 ug/L 31 007 MW-6 Aqueous Selenium 6020B 2.2 J ug/L 31 008 MW-6D Aqueous Benzene 8260D 2.5 ug/L 32 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 6 of 96 Detection Summary (Continued) Lot Number: XL23005 Sample Sample ID Matrix Parameter Method Result Q Units Page 008 MW-6D Aqueous Chlorobenzene 8260D 1.9 ug/L 32 008 MW-6D Aqueous 1,2-Dichlorobenzene 8260D 0.83 J ug/L 32 008 MW-6D Aqueous 1,4-Dichlorobenzene 8260D 12 ug/L 32 008 MW-6D Aqueous 1,1-Dichloroethane 8260D 1.1 ug/L 32 008 MW-6D Aqueous 1,2-Dichloroethane 8260D 0.55 J ug/L 32 008 MW-6D Aqueous 1,4-Dioxane 8260D 260 H ug/L 32 008 MW-6D Aqueous Ethylbenzene 8260D 0.53 J ug/L 32 008 MW-6D Aqueous Toluene 8260D 0.43 J ug/L 32 008 MW-6D Aqueous Xylenes (total)8260D 2.7 ug/L 33 008 MW-6D Aqueous 1,4-Dioxane 8260D (SIM)330 S ug/L 34 008 MW-6D Aqueous Arsenic 6020B 2.5 ug/L 35 008 MW-6D Aqueous Barium 6020B 150 ug/L 35 008 MW-6D Aqueous Selenium 6020B 1.9 J ug/L 35 009 MW-7A Aqueous Benzene 8260D 4.1 ug/L 36 009 MW-7A Aqueous Chlorobenzene 8260D 6.9 ug/L 36 009 MW-7A Aqueous 1,4-Dichlorobenzene 8260D 10 ug/L 36 009 MW-7A Aqueous 1,4-Dioxane 8260D 110 H ug/L 36 009 MW-7A Aqueous Toluene 8260D 0.83 J ug/L 36 009 MW-7A Aqueous Xylenes (total)8260D 0.79 J ug/L 37 009 MW-7A Aqueous 1,4-Dioxane 8260D (SIM)130 ug/L 38 009 MW-7A Aqueous Arsenic 6020B 3.9 ug/L 39 009 MW-7A Aqueous Barium 6020B 530 ug/L 39 009 MW-7A Aqueous Cadmium 6020B 0.29 J ug/L 39 009 MW-7A Aqueous Selenium 6020B 1.4 J ug/L 39 010 MW-8 Aqueous Barium 6020B 26 ug/L 43 011 Downstream Aqueous 1,4-Dioxane 8260D (SIM)2.4 J ug/L 46 011 Downstream Aqueous Barium 6020B 42 ug/L 47 012 Upstream Aqueous Barium 6020B 77 ug/L 51 012 Upstream Aqueous Cadmium 6020B 0.19 J ug/L 51 012 Upstream Aqueous Lead 6020B 0.85 J ug/L 51 (73 detections) 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 7 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-1 XL23005-001 12/20/2022 1330 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0312 BBW 63598 2 5030B 8260D 1 01/04/2023 1435 CJJ 64116 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND L 1ug/L0.8020 Benzene 71-43-2 8260D ND 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D ND 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND L 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D ND H 2ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND L 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND L 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 8 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-1 XL23005-001 12/20/2022 1330 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0312 BBW 63598 2 5030B 8260D 1 01/04/2023 1435 CJJ 64116 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceAcceptanceRun 2Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 103 70-130 H 105 70-130 1,2-Dichloroethane-d4 107 70-130 H 108 70-130 Toluene-d8 105 70-130 H 111 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 9 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-1 XL23005-001 12/20/2022 1330 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1336 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0505 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B ND 1ug/L1.32.0 Barium 7440-39-3 6020B 61 1ug/L1.35.0 Cadmium 7440-43-9 6020B ND 1ug/L0.130.50 Chromium 7440-47-3 6020B 3.2 J 1ug/L1.35.0 Lead 7439-92-1 6020B 0.88 J 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B ND 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 10 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-2 XL23005-002 12/20/2022 1400 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0334 BBW 63598 2 5030B 8260D 1 01/04/2023 1500 CJJ 64116 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND L 1ug/L0.8020 Benzene 71-43-2 8260D ND 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D ND 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND L 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D ND H 2ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND L 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND L 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 11 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-2 XL23005-002 12/20/2022 1400 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0334 BBW 63598 2 5030B 8260D 1 01/04/2023 1500 CJJ 64116 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceAcceptanceRun 2Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 102 70-130 H 107 70-130 1,2-Dichloroethane-d4 106 70-130 H 108 70-130 Toluene-d8 106 70-130 H 111 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 12 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-2 XL23005-002 12/20/2022 1400 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM)1 12/28/2022 1204 BLM 63746 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)ND 1ug/L1.03.0 AcceptanceRun 1 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 95 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 13 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-2 XL23005-002 12/20/2022 1400 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1339 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0515 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B 9.5 1ug/L1.32.0 Barium 7440-39-3 6020B 110 1ug/L1.35.0 Cadmium 7440-43-9 6020B 0.14 J 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B 1.4 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B ND 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 14 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-2D XL23005-003 12/20/2022 1430 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0357 BBW 63598 2 5030B 8260D 1 01/04/2023 1525 CJJ 64116 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND L 1ug/L0.8020 Benzene 71-43-2 8260D ND 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D ND 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND L 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D 0.46 J 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D 1.1 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D 0.87 J 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D 0.82 J 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D ND H 2ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND L 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND L 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 15 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-2D XL23005-003 12/20/2022 1430 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0357 BBW 63598 2 5030B 8260D 1 01/04/2023 1525 CJJ 64116 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceAcceptanceRun 2Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 105 70-130 H 108 70-130 1,2-Dichloroethane-d4 96 70-130 H 106 70-130 Toluene-d8 106 70-130 H 111 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 16 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-2D XL23005-003 12/20/2022 1430 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM)1 12/28/2022 1228 BLM 63746 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)5.4 1ug/L1.03.0 AcceptanceRun 1 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 95 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 17 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-2D XL23005-003 12/20/2022 1430 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1341 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0526 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B ND 1ug/L1.32.0 Barium 7440-39-3 6020B 24 1ug/L1.35.0 Cadmium 7440-43-9 6020B ND 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B ND 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B ND 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 18 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-3 XL23005-004 12/21/2022 1530 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0419 BBW 63598 2 5030B 8260D 1 01/04/2023 1545 CDA 64120 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND L 1ug/L0.8020 Benzene 71-43-2 8260D ND 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D ND 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND L 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D ND 2ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND L 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND L 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 19 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-3 XL23005-004 12/21/2022 1530 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0419 BBW 63598 2 5030B 8260D 1 01/04/2023 1545 CDA 64120 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceAcceptanceRun 2Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 100 70-130 96 70-130 1,2-Dichloroethane-d4 107 70-130 94 70-130 Toluene-d8 107 70-130 92 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 20 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-3 XL23005-004 12/21/2022 1530 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1344 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0536 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B ND 1ug/L1.32.0 Barium 7440-39-3 6020B 41 1ug/L1.35.0 Cadmium 7440-43-9 6020B 0.18 J 1ug/L0.130.50 Chromium 7440-47-3 6020B 2.8 J 1ug/L1.35.0 Lead 7439-92-1 6020B 2.3 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B ND 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 21 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-4 XL23005-005 12/20/2022 1500 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0442 BBW 63598 3 5030B 8260D 1 01/09/2023 1534 CDA 64447 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND L 1ug/L0.8020 Benzene 71-43-2 8260D 0.51 J 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D 8.8 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND L 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D 0.94 J 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D 5.1 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D 86 H 3ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND L 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND L 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 22 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-4 XL23005-005 12/20/2022 1500 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0442 BBW 63598 3 5030B 8260D 1 01/09/2023 1534 CDA 64447 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceAcceptanceRun 3Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 104 70-130 H 90 70-130 1,2-Dichloroethane-d4 106 70-130 H 90 70-130 Toluene-d8 107 70-130 H 94 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 23 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-4 XL23005-005 12/20/2022 1500 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM)1 12/28/2022 1252 BLM 63746 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)110 1ug/L1.03.0 AcceptanceRun 1 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 94 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 24 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-4 XL23005-005 12/20/2022 1500 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1347 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0649 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B ND 1ug/L1.32.0 Barium 7440-39-3 6020B 270 1ug/L1.35.0 Cadmium 7440-43-9 6020B 0.14 J 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B ND 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B 1.7 J 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 25 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-5 XL23005-006 12/21/2022 1430 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0249 BBW 63598 2 5030B 8260D 1 01/09/2023 1816 CDA 64454 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND L 1ug/L0.8020 Benzene 71-43-2 8260D ND 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D ND 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND L 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D ND H 2ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND L 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND L 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 26 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-5 XL23005-006 12/21/2022 1430 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0249 BBW 63598 2 5030B 8260D 1 01/09/2023 1816 CDA 64454 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceAcceptanceRun 2Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 102 70-130 H 111 70-130 1,2-Dichloroethane-d4 102 70-130 H 105 70-130 Toluene-d8 106 70-130 H 109 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 27 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-6 XL23005-007 12/21/2022 1700 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0504 BBW 63598 3 5030B 8260D 1 01/09/2023 1559 CDA 64447 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND L 1ug/L0.8020 Benzene 71-43-2 8260D 4.1 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D 2.4 1ug/L0.401.0 Chloroethane 75-00-3 8260D 0.67 J 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND L 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D 0.78 J 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D 22 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D 0.89 J 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D 0.79 J 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D 85 H 3ug/L1350 Ethylbenzene 100-41-4 8260D 0.42 J 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND L 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND L 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D 0.43 J 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 28 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-6 XL23005-007 12/21/2022 1700 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 12/24/2022 0504 BBW 63598 3 5030B 8260D 1 01/09/2023 1559 CDA 64447 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D 0.67 J 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D 1.8 1ug/L0.401.0 AcceptanceAcceptanceRun 3Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 105 70-130 H 94 70-130 1,2-Dichloroethane-d4 101 70-130 H 92 70-130 Toluene-d8 105 70-130 H 98 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 29 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-6 XL23005-007 12/21/2022 1700 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM)1 12/28/2022 1316 BLM 63746 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)120 1ug/L1.03.0 AcceptanceRun 1 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 94 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 30 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-6 XL23005-007 12/21/2022 1700 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1355 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0700 BNW 12/27/2022 0940 63573 2 3005A 6020B 50 12/30/2022 1955 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B 2.3 1ug/L1.32.0 Barium 7440-39-3 6020B 6200 2ug/L63250 Cadmium 7440-43-9 6020B ND 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B ND 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B 2.2 J 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 31 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-6D XL23005-008 12/21/2022 1730 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/04/2023 0134 JMM2 64061 2 5030B 8260D 1 01/09/2023 1621 CDA 64454 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND 1ug/L0.8020 Benzene 71-43-2 8260D 2.5 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D 1.9 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D 0.83 J 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D 12 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D 1.1 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D 0.55 J 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D 260 H 2ug/L1350 Ethylbenzene 100-41-4 8260D 0.53 J 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D 0.43 J 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 32 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-6D XL23005-008 12/21/2022 1730 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/04/2023 0134 JMM2 64061 2 5030B 8260D 1 01/09/2023 1621 CDA 64454 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D 2.7 1ug/L0.401.0 AcceptanceAcceptanceRun 2Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 108 70-130 H 109 70-130 1,2-Dichloroethane-d4 106 70-130 H 103 70-130 Toluene-d8 111 70-130 H 107 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 33 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-6D XL23005-008 12/21/2022 1730 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 2 5030B 8260D (SIM)5 12/30/2022 1500 BLM 63929 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)330 S 2ug/L5.015 AcceptanceRun 2 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 93 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 34 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-6D XL23005-008 12/21/2022 1730 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1357 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0710 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B 2.5 1ug/L1.32.0 Barium 7440-39-3 6020B 150 1ug/L1.35.0 Cadmium 7440-43-9 6020B ND 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B ND 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B 1.9 J 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 35 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-7A XL23005-009 12/21/2022 1630 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/04/2023 0159 JMM2 64061 2 5030B 8260D 1 01/09/2023 1644 CDA 64454 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND 1ug/L0.8020 Benzene 71-43-2 8260D 4.1 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D 6.9 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D 10 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D 110 H 2ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D 0.83 J 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 36 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-7A XL23005-009 12/21/2022 1630 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/04/2023 0159 JMM2 64061 2 5030B 8260D 1 01/09/2023 1644 CDA 64454 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D 0.79 J 1ug/L0.401.0 AcceptanceAcceptanceRun 2Run 1 Surrogate Q % Recovery Limits % Recovery LimitsQ Bromofluorobenzene 106 70-130 H 116 70-130 1,2-Dichloroethane-d4 105 70-130 H 103 70-130 Toluene-d8 110 70-130 H 109 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 37 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-7A XL23005-009 12/21/2022 1630 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM)1 12/28/2022 1406 BLM 63746 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)130 1ug/L1.03.0 AcceptanceRun 1 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 93 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 38 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-7A XL23005-009 12/21/2022 1630 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1400 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0721 BNW 12/27/2022 0940 63573 2 3005A 6020B 5 12/30/2022 0947 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B 3.9 1ug/L1.32.0 Barium 7440-39-3 6020B 530 2ug/L6.325 Cadmium 7440-43-9 6020B 0.29 J 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B ND 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B 1.4 J 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 39 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-8 XL23005-010 12/21/2022 1600 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/04/2023 0224 JMM2 64061 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND 1ug/L0.8020 Benzene 71-43-2 8260D ND 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D ND 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D ND 1ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 40 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-8 XL23005-010 12/21/2022 1600 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/04/2023 0224 JMM2 64061 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceRun 1 Surrogate Q % Recovery Limits Bromofluorobenzene 110 70-130 1,2-Dichloroethane-d4 108 70-130 Toluene-d8 110 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 41 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-8 XL23005-010 12/21/2022 1600 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM)1 12/28/2022 1430 BLM 63746 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)ND 1ug/L1.03.0 AcceptanceRun 1 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 94 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 42 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental MW-8 XL23005-010 12/21/2022 1600 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1403 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0731 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B ND 1ug/L1.32.0 Barium 7440-39-3 6020B 26 1ug/L1.35.0 Cadmium 7440-43-9 6020B ND 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B ND 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B ND 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 43 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental Downstream XL23005-011 12/21/2022 1500 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/04/2023 1635 CDA 64120 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND 1ug/L0.8020 Benzene 71-43-2 8260D ND 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D ND 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D ND 1ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND L 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND L 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 44 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental Downstream XL23005-011 12/21/2022 1500 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/04/2023 1635 CDA 64120 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceRun 1 Surrogate Q % Recovery Limits Bromofluorobenzene 98 70-130 1,2-Dichloroethane-d4 95 70-130 Toluene-d8 96 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 45 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental Downstream XL23005-011 12/21/2022 1500 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM)1 12/28/2022 1454 BLM 63746 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)2.4 J 1ug/L1.03.0 AcceptanceRun 1 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 94 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 46 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental Downstream XL23005-011 12/21/2022 1500 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1405 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0742 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B ND 1ug/L1.32.0 Barium 7440-39-3 6020B 42 1ug/L1.35.0 Cadmium 7440-43-9 6020B ND 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B ND 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B ND 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 47 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental Upstream XL23005-012 12/20/2022 1245 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/03/2023 1537 CDA 64027 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Acetone 67-64-1 8260D ND L 1ug/L5.020 Acrylonitrile 107-13-1 8260D ND 1ug/L0.8020 Benzene 71-43-2 8260D ND 1ug/L0.401.0 Bromochloromethane 74-97-5 8260D ND 1ug/L0.401.0 Bromodichloromethane 75-27-4 8260D ND 1ug/L0.401.0 Bromoform 75-25-2 8260D ND 1ug/L0.401.0 Bromomethane (Methyl bromide)74-83-9 8260D ND 1ug/L0.402.0 2-Butanone (MEK)78-93-3 8260D ND 1ug/L2.010 Carbon disulfide 75-15-0 8260D ND 1ug/L0.401.0 Carbon tetrachloride 56-23-5 8260D ND 1ug/L0.401.0 Chlorobenzene 108-90-7 8260D ND 1ug/L0.401.0 Chloroethane 75-00-3 8260D ND 1ug/L0.402.0 Chloroform 67-66-3 8260D ND 1ug/L0.401.0 Chloromethane (Methyl chloride)74-87-3 8260D ND 1ug/L0.501.0 1,2-Dibromo-3-chloropropane (DBCP)96-12-8 8260D ND 1ug/L0.401.0 Dibromochloromethane 124-48-1 8260D ND 1ug/L0.401.0 1,2-Dibromoethane (EDB)106-93-4 8260D ND 1ug/L0.401.0 Dibromomethane (Methylene bromide)74-95-3 8260D ND 1ug/L0.401.0 trans-1,4-Dichloro-2-butene 110-57-6 8260D ND 1ug/L0.502.0 1,2-Dichlorobenzene 95-50-1 8260D ND 1ug/L0.401.0 1,4-Dichlorobenzene 106-46-7 8260D ND 1ug/L0.401.0 1,1-Dichloroethane 75-34-3 8260D ND 1ug/L0.401.0 1,2-Dichloroethane 107-06-2 8260D ND 1ug/L0.401.0 1,1-Dichloroethene 75-35-4 8260D ND 1ug/L0.401.0 cis-1,2-Dichloroethene 156-59-2 8260D ND 1ug/L0.401.0 trans-1,2-Dichloroethene 156-60-5 8260D ND 1ug/L0.401.0 1,2-Dichloropropane 78-87-5 8260D ND 1ug/L0.401.0 cis-1,3-Dichloropropene 10061-01-5 8260D ND 1ug/L0.401.0 trans-1,3-Dichloropropene 10061-02-6 8260D ND 1ug/L0.401.0 1,4-Dioxane 123-91-1 8260D ND L 1ug/L1350 Ethylbenzene 100-41-4 8260D ND 1ug/L0.401.0 2-Hexanone 591-78-6 8260D ND 1ug/L2.010 Methyl iodide (Iodomethane)74-88-4 8260D ND 1ug/L0.405.0 4-Methyl-2-pentanone 108-10-1 8260D ND 1ug/L2.010 Methylene chloride 75-09-2 8260D ND 1ug/L0.401.0 Styrene 100-42-5 8260D ND 1ug/L0.411.0 1,1,1,2-Tetrachloroethane 630-20-6 8260D ND 1ug/L0.401.0 1,1,2,2-Tetrachloroethane 79-34-5 8260D ND 1ug/L0.401.0 Tetrachloroethene 127-18-4 8260D ND 1ug/L0.401.0 Toluene 108-88-3 8260D ND 1ug/L0.401.0 1,1,1-Trichloroethane 71-55-6 8260D ND 1ug/L0.401.0 1,1,2-Trichloroethane 79-00-5 8260D ND 1ug/L0.401.0 Trichloroethene 79-01-6 8260D ND 1ug/L0.401.0 Trichlorofluoromethane 75-69-4 8260D ND 1ug/L0.401.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 48 of 96 Volatile Organic Compounds by GC/MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental Upstream XL23005-012 12/20/2022 1245 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D 1 01/03/2023 1537 CDA 64027 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,2,3-Trichloropropane 96-18-4 8260D ND 1ug/L0.401.0 Vinyl acetate 108-05-4 8260D ND 1ug/L1.25.0 Vinyl chloride 75-01-4 8260D ND 1ug/L0.401.0 Xylenes (total)1330-20-7 8260D ND 1ug/L0.401.0 AcceptanceRun 1 Surrogate Q % Recovery Limits Bromofluorobenzene 110 70-130 1,2-Dichloroethane-d4 106 70-130 Toluene-d8 112 70-130 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 49 of 96 Volatile Organic Compounds by GC/MS (SIM) Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental Upstream XL23005-012 12/20/2022 1245 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 5030B 8260D (SIM)1 12/28/2022 1519 BLM 63746 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL 1,4-Dioxane 123-91-1 8260D (SIM)ND 1ug/L1.03.0 AcceptanceRun 1 Surrogate Q % Recovery Limits 1,2-Dichloroethane-d4 91 40-170 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 50 of 96 ICP-MS Description:Matrix: Date Received: Client:Laboratory ID: Date Sampled: Buxton Environmental Upstream XL23005-012 12/20/2022 1245 12/23/2022 Aqueous Project Name: Gaston Co - Cramerton Project Number: NC Permit: 3601 Run Prep Method Analytical Method Dilution Analysis Date Analyst Prep Date Batch 1 7470A 1 12/24/2022 1408 MRW2 12/24/2022 0927 63554 1 3005A 6020B 1 12/30/2022 0937 BNW 12/27/2022 0940 63573 AnalyticalCAS Parameter Number Method Result Q LOQ Units Run DL Arsenic 7440-38-2 6020B ND 1ug/L1.32.0 Barium 7440-39-3 6020B 77 1ug/L1.35.0 Cadmium 7440-43-9 6020B 0.19 J 1ug/L0.130.50 Chromium 7440-47-3 6020B ND 1ug/L1.35.0 Lead 7439-92-1 6020B 0.85 J 1ug/L0.251.0 Mercury 7439-97-6 7470A ND 1mg/L0.0000910.00020 Selenium 7782-49-2 6020B ND 1ug/L1.35.0 Silver 7440-22-4 6020B ND 1ug/L0.251.0 J = Estimated result < LOQ and > DL_ LOQ = Limit of Quantitation B = Detected in the method blank E = Quantitation of compound exceeded the calibration range P = The RPD between two GC columns exceeds 40%ND = Not detected at or above the DL N = Recovery is out of criteria H = Out of holding time Q = Surrogate failure L = LCS/LCSD failure S = MS/MSD failure DL = Detection Limit W = Reported on wet weight basis 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 51 of 96 QC Summary 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 52 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:XQ63598-001 63598 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil Acetone ND 12/23/2022 2148205.0 ug/L1 Acrylonitrile ND 12/23/2022 2148200.80 ug/L1 Benzene ND 12/23/2022 21481.0 0.40 ug/L1 Bromochloromethane ND 12/23/2022 21481.0 0.40 ug/L1 Bromodichloromethane ND 12/23/2022 21481.0 0.40 ug/L1 Bromoform ND 12/23/2022 21481.0 0.40 ug/L1 Bromomethane (Methyl bromide)ND 12/23/2022 21482.0 0.40 ug/L1 2-Butanone (MEK)ND 12/23/2022 2148102.0 ug/L1 Carbon disulfide ND 12/23/2022 21481.0 0.40 ug/L1 Carbon tetrachloride ND 12/23/2022 21481.0 0.40 ug/L1 Chlorobenzene ND 12/23/2022 21481.0 0.40 ug/L1 Chloroethane ND 12/23/2022 21482.0 0.40 ug/L1 Chloroform ND 12/23/2022 21481.0 0.40 ug/L1 Chloromethane (Methyl chloride)ND 12/23/2022 21481.0 0.50 ug/L1 1,2-Dibromo-3-chloropropane (DBCP)ND 12/23/2022 21481.0 0.40 ug/L1 Dibromochloromethane ND 12/23/2022 21481.0 0.40 ug/L1 1,2-Dibromoethane (EDB)ND 12/23/2022 21481.0 0.40 ug/L1 Dibromomethane (Methylene bromide)ND 12/23/2022 21481.0 0.40 ug/L1 trans-1,4-Dichloro-2-butene ND 12/23/2022 21482.0 0.50 ug/L1 1,2-Dichlorobenzene ND 12/23/2022 21481.0 0.40 ug/L1 1,4-Dichlorobenzene ND 12/23/2022 21481.0 0.40 ug/L1 1,1-Dichloroethane ND 12/23/2022 21481.0 0.40 ug/L1 1,2-Dichloroethane ND 12/23/2022 21481.0 0.40 ug/L1 1,1-Dichloroethene ND 12/23/2022 21481.0 0.40 ug/L1 cis-1,2-Dichloroethene ND 12/23/2022 21481.0 0.40 ug/L1 trans-1,2-Dichloroethene ND 12/23/2022 21481.0 0.40 ug/L1 1,2-Dichloropropane ND 12/23/2022 21481.0 0.40 ug/L1 cis-1,3-Dichloropropene ND 12/23/2022 21481.0 0.40 ug/L1 trans-1,3-Dichloropropene ND 12/23/2022 21481.0 0.40 ug/L1 Ethylbenzene ND 12/23/2022 21481.0 0.40 ug/L1 2-Hexanone ND 12/23/2022 2148102.0 ug/L1 Methyl iodide (Iodomethane)ND 12/23/2022 21485.0 0.40 ug/L1 4-Methyl-2-pentanone ND 12/23/2022 2148102.0 ug/L1 Methylene chloride ND 12/23/2022 21481.0 0.40 ug/L1 Styrene ND 12/23/2022 21481.0 0.41 ug/L1 1,1,1,2-Tetrachloroethane ND 12/23/2022 21481.0 0.40 ug/L1 1,1,2,2-Tetrachloroethane ND 12/23/2022 21481.0 0.40 ug/L1 Tetrachloroethene ND 12/23/2022 21481.0 0.40 ug/L1 Toluene ND 12/23/2022 21481.0 0.40 ug/L1 1,1,1-Trichloroethane ND 12/23/2022 21481.0 0.40 ug/L1 1,1,2-Trichloroethane ND 12/23/2022 21481.0 0.40 ug/L1 Trichloroethene ND 12/23/2022 21481.0 0.40 ug/L1 Trichlorofluoromethane ND 12/23/2022 21481.0 0.40 ug/L1 1,2,3-Trichloropropane ND 12/23/2022 21481.0 0.40 ug/L1 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 53 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:XQ63598-001 63598 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil Vinyl acetate ND 12/23/2022 21485.0 1.2 ug/L1 Vinyl chloride ND 12/23/2022 21481.0 0.40 ug/L1 Xylenes (total)ND 12/23/2022 21481.0 0.40 ug/L1 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 105 70-130 1,2-Dichloroethane-d4 107 70-130 Toluene-d8 105 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 54 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:XQ63598-002 63598 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) Acetone 180 12/23/2022 1941N17610060-1401 Acrylonitrile 130 12/23/2022 194112810070-1301 Benzene 50 12/23/2022 1941995070-1301 Bromochloromethane 51 12/23/2022 19411025070-1301 Bromodichloromethane 53 12/23/2022 19411065070-1301 Bromoform 54 12/23/2022 19411075070-1301 Bromomethane (Methyl bromide)55 12/23/2022 19411095070-1301 2-Butanone (MEK)110 12/23/2022 194111510070-1301 Carbon disulfide 47 12/23/2022 1941945070-1301 Carbon tetrachloride 54 12/23/2022 19411085070-1301 Chlorobenzene 51 12/23/2022 19411025070-1301 Chloroethane 54 12/23/2022 19411095070-1301 Chloroform 51 12/23/2022 19411025070-1301 Chloromethane (Methyl chloride)58 12/23/2022 19411155060-1401 1,2-Dibromo-3-chloropropane (DBCP)65 12/23/2022 1941N1315070-1301 Dibromochloromethane 54 12/23/2022 19411075070-1301 1,2-Dibromoethane (EDB)54 12/23/2022 19411075070-1301 Dibromomethane (Methylene bromide)53 12/23/2022 19411065070-1301 trans-1,4-Dichloro-2-butene 56 12/23/2022 19411125070-1301 1,2-Dichlorobenzene 52 12/23/2022 19411055070-1301 1,4-Dichlorobenzene 52 12/23/2022 19411045070-1301 1,1-Dichloroethane 52 12/23/2022 19411045070-1301 1,2-Dichloroethane 52 12/23/2022 19411045070-1301 1,1-Dichloroethene 47 12/23/2022 1941945070-1301 cis-1,2-Dichloroethene 51 12/23/2022 19411025070-1301 trans-1,2-Dichloroethene 51 12/23/2022 19411015070-1301 1,2-Dichloropropane 52 12/23/2022 19411045070-1301 cis-1,3-Dichloropropene 53 12/23/2022 19411065070-1301 trans-1,3-Dichloropropene 56 12/23/2022 19411125070-1301 Ethylbenzene 51 12/23/2022 19411035070-1301 2-Hexanone 130 12/23/2022 1941N13110070-1301 Methyl iodide (Iodomethane)48 12/23/2022 1941965070-1301 4-Methyl-2-pentanone 130 12/23/2022 194112810070-1301 Methylene chloride 50 12/23/2022 19411005070-1301 Styrene 54 12/23/2022 19411085070-1301 1,1,1,2-Tetrachloroethane 54 12/23/2022 19411075070-1301 1,1,2,2-Tetrachloroethane 61 12/23/2022 19411235070-1301 Tetrachloroethene 48 12/23/2022 1941975070-1301 Toluene 52 12/23/2022 19411035070-1301 1,1,1-Trichloroethane 52 12/23/2022 19411045070-1301 1,1,2-Trichloroethane 53 12/23/2022 19411055070-1301 Trichloroethene 47 12/23/2022 1941945070-1301 Trichlorofluoromethane 62 12/23/2022 19411245070-1301 1,2,3-Trichloropropane 55 12/23/2022 19411105070-1301 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 55 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:XQ63598-002 63598 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) Vinyl acetate 47 12/23/2022 1941945060-1401 Vinyl chloride 55 12/23/2022 19411105070-1301 Xylenes (total)100 12/23/2022 194110510070-1301 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 95 70-130 1,2-Dichloroethane-d4 97 70-130 Toluene-d8 94 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 56 of 96 Volatile Organic Compounds by GC/MS - LCSD Batch:Prep Method: Sample ID:XQ63598-003 63598 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD LimitDil(ug/L)(ug/L) Acetone 170 12/24/2022 0204N16810060-1404.9 201 Acrylonitrile 130 12/24/2022 0204N13510070-1305.2 201 Benzene 50 12/24/2022 0204995070-1300.098 201 Bromochloromethane 49 12/24/2022 0204985070-1303.6 201 Bromodichloromethane 51 12/24/2022 02041035070-1303.5 201 Bromoform 51 12/24/2022 02041025070-1304.8 201 Bromomethane (Methyl bromide)55 12/24/2022 02041095070-1300.097 201 2-Butanone (MEK)110 12/24/2022 020411510070-1300.13 201 Carbon disulfide 47 12/24/2022 0204945070-1300.034 201 Carbon tetrachloride 53 12/24/2022 02041055070-1303.1 201 Chlorobenzene 50 12/24/2022 02041005070-1301.9 201 Chloroethane 59 12/24/2022 02041185070-1307.7 201 Chloroform 50 12/24/2022 02041005070-1301.7 201 Chloromethane (Methyl chloride)59 12/24/2022 02041195060-1402.8 201 1,2-Dibromo-3-chloropropane (DBCP)67 12/24/2022 0204N1345070-1302.2 201 Dibromochloromethane 51 12/24/2022 02041035070-1304.1 201 1,2-Dibromoethane (EDB)53 12/24/2022 02041055070-1302.0 201 Dibromomethane (Methylene bromide)51 12/24/2022 02041025070-1303.5 201 trans-1,4-Dichloro-2-butene 45 12/24/2022 0204+8950 70-13023 201 1,2-Dichlorobenzene 49 12/24/2022 0204995070-1306.1 201 1,4-Dichlorobenzene 49 12/24/2022 0204975070-1306.6 201 1,1-Dichloroethane 52 12/24/2022 02041035070-1300.42 201 1,2-Dichloroethane 51 12/24/2022 02041025070-1302.1 201 1,1-Dichloroethene 48 12/24/2022 0204955070-1301.6 201 cis-1,2-Dichloroethene 51 12/24/2022 02041015070-1300.66 201 trans-1,2-Dichloroethene 51 12/24/2022 02041015070-1300.14 201 1,2-Dichloropropane 51 12/24/2022 02041025070-1302.1 201 cis-1,3-Dichloropropene 51 12/24/2022 02041035070-1303.3 201 trans-1,3-Dichloropropene 54 12/24/2022 02041095070-1302.9 201 Ethylbenzene 50 12/24/2022 02041005070-1303.0 201 2-Hexanone 140 12/24/2022 0204N14310070-1309.1 201 Methyl iodide (Iodomethane)47 12/24/2022 0204955070-1300.75 201 4-Methyl-2-pentanone 130 12/24/2022 0204N13110070-1302.1 201 Methylene chloride 49 12/24/2022 0204985070-1302.2 201 Styrene 53 12/24/2022 02041055070-1303.1 201 1,1,1,2-Tetrachloroethane 51 12/24/2022 02041025070-1304.8 201 1,1,2,2-Tetrachloroethane 59 12/24/2022 02041185070-1303.7 201 Tetrachloroethene 48 12/24/2022 0204965070-1300.64 201 Toluene 51 12/24/2022 02041025070-1301.4 201 1,1,1-Trichloroethane 51 12/24/2022 02041025070-1301.7 201 1,1,2-Trichloroethane 52 12/24/2022 02041045070-1300.53 201 Trichloroethene 47 12/24/2022 0204945070-1300.31 201 Trichlorofluoromethane 61 12/24/2022 02041215070-1302.1 201 1,2,3-Trichloropropane 54 12/24/2022 02041085070-1301.4 201 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 57 of 96 Volatile Organic Compounds by GC/MS - LCSD Batch:Prep Method: Sample ID:XQ63598-003 63598 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD LimitDil(ug/L)(ug/L) Vinyl acetate 46 12/24/2022 0204925060-1402.1 201 Vinyl chloride 56 12/24/2022 02041115070-1301.3 201 Xylenes (total)100 12/24/2022 020410210070-1302.7 201 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 106 70-130 1,2-Dichloroethane-d4 111 70-130 Toluene-d8 106 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 58 of 96 Volatile Organic Compounds by GC/MS (SIM) - MB Batch:Prep Method: Sample ID:XQ63746-001 63746 5030B Analytical Method:8260D (SIM) Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil 1,4-Dioxane ND 12/28/2022 10473.0 1.0 ug/L1 Surrogate Q % Rec Acceptance Limit 1,2-Dichloroethane-d4 95 40-170 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 59 of 96 Volatile Organic Compounds by GC/MS (SIM) - LCS Batch:Prep Method: Sample ID:XQ63746-002 63746 5030B Analytical Method:8260D (SIM) Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) 1,4-Dioxane 45 12/28/2022 0945905070-1301 Surrogate Q % Rec Acceptance Limit 1,2-Dichloroethane-d4 102 40-170 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 60 of 96 Volatile Organic Compounds by GC/MS (SIM) - MB Batch:Prep Method: Sample ID:XQ63929-001 63929 5030B Analytical Method:8260D (SIM) Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil 1,4-Dioxane ND 12/30/2022 11373.0 1.0 ug/L1 Surrogate Q % Rec Acceptance Limit 1,2-Dichloroethane-d4 93 40-170 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 61 of 96 Volatile Organic Compounds by GC/MS (SIM) - LCS Batch:Prep Method: Sample ID:XQ63929-002 63929 5030B Analytical Method:8260D (SIM) Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) 1,4-Dioxane 45 12/30/2022 1032895070-1301 Surrogate Q % Rec Acceptance Limit 1,2-Dichloroethane-d4 97 40-170 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 62 of 96 Volatile Organic Compounds by GC/MS (SIM) - MS Batch:Prep Method: Sample ID:XL23005-008MS 63929 5030B Analytical Method:8260D (SIM) Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec Limit Sample Amount Dil(ug/L)(ug/L)(ug/L) 1,4-Dioxane 320 12/30/2022 1524N-3.5250 70-1303305 Surrogate Q % Rec Acceptance Limit 1,2-Dichloroethane-d4 111 40-170 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 63 of 96 Volatile Organic Compounds by GC/MS (SIM) - MSD Batch:Prep Method: Sample ID:XL23005-008MD 63929 5030B Analytical Method:8260D (SIM) Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD Limit Sample Amount Dil(ug/L)(ug/L)(ug/L) 1,4-Dioxane 330 12/30/2022 1548N1.0250 70-1303.5 203305 Surrogate Q % Rec Acceptance Limit 1,2-Dichloroethane-d4 113 40-170 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 64 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64027-001 64027 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil Acetone ND 01/03/2023 1401205.0 ug/L1 Acrylonitrile ND 01/03/2023 1401200.80 ug/L1 Benzene ND 01/03/2023 14011.0 0.40 ug/L1 Bromochloromethane ND 01/03/2023 14011.0 0.40 ug/L1 Bromodichloromethane ND 01/03/2023 14011.0 0.40 ug/L1 Bromoform ND 01/03/2023 14011.0 0.40 ug/L1 Bromomethane (Methyl bromide)ND 01/03/2023 14012.0 0.40 ug/L1 2-Butanone (MEK)ND 01/03/2023 1401102.0 ug/L1 Carbon disulfide ND 01/03/2023 14011.0 0.40 ug/L1 Carbon tetrachloride ND 01/03/2023 14011.0 0.40 ug/L1 Chlorobenzene ND 01/03/2023 14011.0 0.40 ug/L1 Chloroethane ND 01/03/2023 14012.0 0.40 ug/L1 Chloroform ND 01/03/2023 14011.0 0.40 ug/L1 Chloromethane (Methyl chloride)ND 01/03/2023 14011.0 0.50 ug/L1 1,2-Dibromo-3-chloropropane (DBCP)ND 01/03/2023 14011.0 0.40 ug/L1 Dibromochloromethane ND 01/03/2023 14011.0 0.40 ug/L1 1,2-Dibromoethane (EDB)ND 01/03/2023 14011.0 0.40 ug/L1 Dibromomethane (Methylene bromide)ND 01/03/2023 14011.0 0.40 ug/L1 trans-1,4-Dichloro-2-butene ND 01/03/2023 14012.0 0.50 ug/L1 1,2-Dichlorobenzene ND 01/03/2023 14011.0 0.40 ug/L1 1,4-Dichlorobenzene ND 01/03/2023 14011.0 0.40 ug/L1 1,1-Dichloroethane ND 01/03/2023 14011.0 0.40 ug/L1 1,2-Dichloroethane ND 01/03/2023 14011.0 0.40 ug/L1 1,1-Dichloroethene ND 01/03/2023 14011.0 0.40 ug/L1 cis-1,2-Dichloroethene ND 01/03/2023 14011.0 0.40 ug/L1 trans-1,2-Dichloroethene ND 01/03/2023 14011.0 0.40 ug/L1 1,2-Dichloropropane ND 01/03/2023 14011.0 0.40 ug/L1 cis-1,3-Dichloropropene ND 01/03/2023 14011.0 0.40 ug/L1 trans-1,3-Dichloropropene ND 01/03/2023 14011.0 0.40 ug/L1 1,4-Dioxane ND 01/03/2023 14015013ug/L1 Ethylbenzene ND 01/03/2023 14011.0 0.40 ug/L1 2-Hexanone ND 01/03/2023 1401102.0 ug/L1 Methyl iodide (Iodomethane)ND 01/03/2023 14015.0 0.40 ug/L1 4-Methyl-2-pentanone ND 01/03/2023 1401102.0 ug/L1 Methylene chloride ND 01/03/2023 14011.0 0.40 ug/L1 Styrene ND 01/03/2023 14011.0 0.41 ug/L1 1,1,1,2-Tetrachloroethane ND 01/03/2023 14011.0 0.40 ug/L1 1,1,2,2-Tetrachloroethane ND 01/03/2023 14011.0 0.40 ug/L1 Tetrachloroethene ND 01/03/2023 14011.0 0.40 ug/L1 Toluene ND 01/03/2023 14011.0 0.40 ug/L1 1,1,1-Trichloroethane ND 01/03/2023 14011.0 0.40 ug/L1 1,1,2-Trichloroethane ND 01/03/2023 14011.0 0.40 ug/L1 Trichloroethene ND 01/03/2023 14011.0 0.40 ug/L1 Trichlorofluoromethane ND 01/03/2023 14011.0 0.40 ug/L1 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 65 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64027-001 64027 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil 1,2,3-Trichloropropane ND 01/03/2023 14011.0 0.40 ug/L1 Vinyl acetate ND 01/03/2023 14015.0 1.2 ug/L1 Vinyl chloride ND 01/03/2023 14011.0 0.40 ug/L1 Xylenes (total)ND 01/03/2023 14011.0 0.40 ug/L1 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 108 70-130 1,2-Dichloroethane-d4 105 70-130 Toluene-d8 111 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 66 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64027-002 64027 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) Acetone 110 01/03/2023 103211010060-1401 Acrylonitrile 90 01/03/2023 10329010070-1301 Benzene 43 01/03/2023 1032865070-1301 Bromochloromethane 44 01/03/2023 1032875070-1301 Bromodichloromethane 44 01/03/2023 1032885070-1301 Bromoform 45 01/03/2023 1032905070-1301 Bromomethane (Methyl bromide)47 01/03/2023 1032935070-1301 2-Butanone (MEK)92 01/03/2023 10329210070-1301 Carbon disulfide 42 01/03/2023 1032845070-1301 Carbon tetrachloride 44 01/03/2023 1032875070-1301 Chlorobenzene 43 01/03/2023 1032875070-1301 Chloroethane 42 01/03/2023 1032845070-1301 Chloroform 43 01/03/2023 1032865070-1301 Chloromethane (Methyl chloride)40 01/03/2023 1032815060-1401 1,2-Dibromo-3-chloropropane (DBCP)43 01/03/2023 1032865070-1301 Dibromochloromethane 45 01/03/2023 1032905070-1301 1,2-Dibromoethane (EDB)44 01/03/2023 1032885070-1301 Dibromomethane (Methylene bromide)45 01/03/2023 1032905070-1301 trans-1,4-Dichloro-2-butene 42 01/03/2023 1032855070-1301 1,2-Dichlorobenzene 43 01/03/2023 1032875070-1301 1,4-Dichlorobenzene 43 01/03/2023 1032865070-1301 1,1-Dichloroethane 43 01/03/2023 1032875070-1301 1,2-Dichloroethane 45 01/03/2023 1032895070-1301 1,1-Dichloroethene 43 01/03/2023 1032875070-1301 cis-1,2-Dichloroethene 45 01/03/2023 1032905070-1301 trans-1,2-Dichloroethene 45 01/03/2023 1032905070-1301 1,2-Dichloropropane 44 01/03/2023 1032885070-1301 cis-1,3-Dichloropropene 45 01/03/2023 1032915070-1301 trans-1,3-Dichloropropene 44 01/03/2023 1032895070-1301 1,4-Dioxane 740 01/03/2023 1032N14850060-1401 Ethylbenzene 44 01/03/2023 1032885070-1301 2-Hexanone 78 01/03/2023 10327810070-1301 Methyl iodide (Iodomethane)43 01/03/2023 1032865070-1301 4-Methyl-2-pentanone 89 01/03/2023 10328910070-1301 Methylene chloride 45 01/03/2023 1032895070-1301 Styrene 45 01/03/2023 1032895070-1301 1,1,1,2-Tetrachloroethane 44 01/03/2023 1032895070-1301 1,1,2,2-Tetrachloroethane 42 01/03/2023 1032845070-1301 Tetrachloroethene 43 01/03/2023 1032865070-1301 Toluene 43 01/03/2023 1032875070-1301 1,1,1-Trichloroethane 43 01/03/2023 1032855070-1301 1,1,2-Trichloroethane 44 01/03/2023 1032885070-1301 Trichloroethene 43 01/03/2023 1032875070-1301 Trichlorofluoromethane 47 01/03/2023 1032945070-1301 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 67 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64027-002 64027 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) 1,2,3-Trichloropropane 45 01/03/2023 1032895070-1301 Vinyl acetate 46 01/03/2023 1032925060-1401 Vinyl chloride 44 01/03/2023 1032895070-1301 Xylenes (total)85 01/03/2023 10328510070-1301 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 92 70-130 1,2-Dichloroethane-d4 86 70-130 Toluene-d8 90 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 68 of 96 Volatile Organic Compounds by GC/MS - LCSD Batch:Prep Method: Sample ID:YQ64027-003 64027 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD LimitDil(ug/L)(ug/L) Acetone 160 01/03/2023 1230N,+164100 60-14039 201 Acrylonitrile 110 01/03/2023 123010910070-13019 201 Benzene 47 01/03/2023 1230945070-1309.1 201 Bromochloromethane 52 01/03/2023 12301045070-13018 201 Bromodichloromethane 51 01/03/2023 12301025070-13015 201 Bromoform 52 01/03/2023 12301055070-13016 201 Bromomethane (Methyl bromide)47 01/03/2023 1230955070-1301.6 201 2-Butanone (MEK)130 01/03/2023 1230+126100 70-13032 201 Carbon disulfide 46 01/03/2023 1230925070-1309.5 201 Carbon tetrachloride 53 01/03/2023 12301075070-13020 201 Chlorobenzene 51 01/03/2023 12301035070-13017 201 Chloroethane 42 01/03/2023 1230845070-1300.80 201 Chloroform 50 01/03/2023 12301005070-13015 201 Chloromethane (Methyl chloride)36 01/03/2023 1230715060-14013 201 1,2-Dibromo-3-chloropropane (DBCP)50 01/03/2023 12301005070-13015 201 Dibromochloromethane 52 01/03/2023 12301035070-13014 201 1,2-Dibromoethane (EDB)52 01/03/2023 12301035070-13015 201 Dibromomethane (Methylene bromide)54 01/03/2023 12301095070-13019 201 trans-1,4-Dichloro-2-butene 56 01/03/2023 1230+11250 70-13027 201 1,2-Dichlorobenzene 50 01/03/2023 12301015070-13015 201 1,4-Dichlorobenzene 51 01/03/2023 12301015070-13017 201 1,1-Dichloroethane 51 01/03/2023 12301035070-13017 201 1,2-Dichloroethane 55 01/03/2023 1230+11150 70-13021 201 1,1-Dichloroethene 49 01/03/2023 1230975070-13012 201 cis-1,2-Dichloroethene 52 01/03/2023 12301045070-13014 201 trans-1,2-Dichloroethene 52 01/03/2023 12301035070-13014 201 1,2-Dichloropropane 53 01/03/2023 12301065070-13018 201 cis-1,3-Dichloropropene 55 01/03/2023 12301095070-13018 201 trans-1,3-Dichloropropene 54 01/03/2023 1230+10950 70-13021 201 1,4-Dioxane 950 01/03/2023 1230N,+191500 60-14026 201 Ethylbenzene 52 01/03/2023 12301045070-13017 201 2-Hexanone 110 01/03/2023 1230+106100 70-13030 201 Methyl iodide (Iodomethane)49 01/03/2023 1230985070-13013 201 4-Methyl-2-pentanone 120 01/03/2023 1230+124100 70-13033 201 Methylene chloride 52 01/03/2023 12301045070-13015 201 Styrene 51 01/03/2023 12301035070-13014 201 1,1,1,2-Tetrachloroethane 52 01/03/2023 12301055070-13016 201 1,1,2,2-Tetrachloroethane 49 01/03/2023 1230985070-13015 201 Tetrachloroethene 51 01/03/2023 12301025070-13018 201 Toluene 50 01/03/2023 12301005070-13014 201 1,1,1-Trichloroethane 50 01/03/2023 12301015070-13016 201 1,1,2-Trichloroethane 52 01/03/2023 12301035070-13016 201 Trichloroethene 54 01/03/2023 1230+10850 70-13022 201 Trichlorofluoromethane 45 01/03/2023 1230905070-1304.8 201 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 69 of 96 Volatile Organic Compounds by GC/MS - LCSD Batch:Prep Method: Sample ID:YQ64027-003 64027 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD LimitDil(ug/L)(ug/L) 1,2,3-Trichloropropane 51 01/03/2023 12301025070-13014 201 Vinyl acetate 57 01/03/2023 1230+11450 60-14021 201 Vinyl chloride 44 01/03/2023 1230885070-1301.1 201 Xylenes (total)100 01/03/2023 123010110070-13017 201 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 104 70-130 1,2-Dichloroethane-d4 100 70-130 Toluene-d8 107 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 70 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64061-001 64061 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil Acetone ND 01/03/2023 2311205.0 ug/L1 Acrylonitrile ND 01/03/2023 2311200.80 ug/L1 Benzene ND 01/03/2023 23111.0 0.40 ug/L1 Bromochloromethane ND 01/03/2023 23111.0 0.40 ug/L1 Bromodichloromethane ND 01/03/2023 23111.0 0.40 ug/L1 Bromoform ND 01/03/2023 23111.0 0.40 ug/L1 Bromomethane (Methyl bromide)ND 01/03/2023 23112.0 0.40 ug/L1 2-Butanone (MEK)ND 01/03/2023 2311102.0 ug/L1 Carbon disulfide ND 01/03/2023 23111.0 0.40 ug/L1 Carbon tetrachloride ND 01/03/2023 23111.0 0.40 ug/L1 Chlorobenzene ND 01/03/2023 23111.0 0.40 ug/L1 Chloroethane ND 01/03/2023 23112.0 0.40 ug/L1 Chloroform ND 01/03/2023 23111.0 0.40 ug/L1 Chloromethane (Methyl chloride)ND 01/03/2023 23111.0 0.50 ug/L1 1,2-Dibromo-3-chloropropane (DBCP)ND 01/03/2023 23111.0 0.40 ug/L1 Dibromochloromethane ND 01/03/2023 23111.0 0.40 ug/L1 1,2-Dibromoethane (EDB)ND 01/03/2023 23111.0 0.40 ug/L1 Dibromomethane (Methylene bromide)ND 01/03/2023 23111.0 0.40 ug/L1 trans-1,4-Dichloro-2-butene ND 01/03/2023 23112.0 0.50 ug/L1 1,2-Dichlorobenzene ND 01/03/2023 23111.0 0.40 ug/L1 1,4-Dichlorobenzene ND 01/03/2023 23111.0 0.40 ug/L1 1,1-Dichloroethane ND 01/03/2023 23111.0 0.40 ug/L1 1,2-Dichloroethane ND 01/03/2023 23111.0 0.40 ug/L1 1,1-Dichloroethene ND 01/03/2023 23111.0 0.40 ug/L1 cis-1,2-Dichloroethene ND 01/03/2023 23111.0 0.40 ug/L1 trans-1,2-Dichloroethene ND 01/03/2023 23111.0 0.40 ug/L1 1,2-Dichloropropane ND 01/03/2023 23111.0 0.40 ug/L1 cis-1,3-Dichloropropene ND 01/03/2023 23111.0 0.40 ug/L1 trans-1,3-Dichloropropene ND 01/03/2023 23111.0 0.40 ug/L1 1,4-Dioxane ND 01/03/2023 23115013ug/L1 Ethylbenzene ND 01/03/2023 23111.0 0.40 ug/L1 2-Hexanone ND 01/03/2023 2311102.0 ug/L1 Methyl iodide (Iodomethane)ND 01/03/2023 23115.0 0.40 ug/L1 4-Methyl-2-pentanone ND 01/03/2023 2311102.0 ug/L1 Methylene chloride ND 01/03/2023 23111.0 0.40 ug/L1 Styrene ND 01/03/2023 23111.0 0.41 ug/L1 1,1,1,2-Tetrachloroethane ND 01/03/2023 23111.0 0.40 ug/L1 1,1,2,2-Tetrachloroethane ND 01/03/2023 23111.0 0.40 ug/L1 Tetrachloroethene ND 01/03/2023 23111.0 0.40 ug/L1 Toluene ND 01/03/2023 23111.0 0.40 ug/L1 1,1,1-Trichloroethane ND 01/03/2023 23111.0 0.40 ug/L1 1,1,2-Trichloroethane ND 01/03/2023 23111.0 0.40 ug/L1 Trichloroethene ND 01/03/2023 23111.0 0.40 ug/L1 Trichlorofluoromethane ND 01/03/2023 23111.0 0.40 ug/L1 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 71 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64061-001 64061 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil 1,2,3-Trichloropropane ND 01/03/2023 23111.0 0.40 ug/L1 Vinyl acetate ND 01/03/2023 23115.0 1.2 ug/L1 Vinyl chloride ND 01/03/2023 23111.0 0.40 ug/L1 Xylenes (total)ND 01/03/2023 23111.0 0.40 ug/L1 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 103 70-130 1,2-Dichloroethane-d4 105 70-130 Toluene-d8 107 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 72 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64061-002 64061 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) Acetone 83 01/03/2023 20128310060-1401 Acrylonitrile 90 01/03/2023 20129010070-1301 Benzene 46 01/03/2023 2012915070-1301 Bromochloromethane 46 01/03/2023 2012915070-1301 Bromodichloromethane 46 01/03/2023 2012925070-1301 Bromoform 46 01/03/2023 2012925070-1301 Bromomethane (Methyl bromide)49 01/03/2023 2012975070-1301 2-Butanone (MEK)99 01/03/2023 20129910070-1301 Carbon disulfide 42 01/03/2023 2012855070-1301 Carbon tetrachloride 46 01/03/2023 2012915070-1301 Chlorobenzene 47 01/03/2023 2012945070-1301 Chloroethane 44 01/03/2023 2012875070-1301 Chloroform 46 01/03/2023 2012915070-1301 Chloromethane (Methyl chloride)41 01/03/2023 2012815060-1401 1,2-Dibromo-3-chloropropane (DBCP)42 01/03/2023 2012845070-1301 Dibromochloromethane 47 01/03/2023 2012945070-1301 1,2-Dibromoethane (EDB)47 01/03/2023 2012945070-1301 Dibromomethane (Methylene bromide)48 01/03/2023 2012975070-1301 trans-1,4-Dichloro-2-butene 46 01/03/2023 2012925070-1301 1,2-Dichlorobenzene 46 01/03/2023 2012925070-1301 1,4-Dichlorobenzene 46 01/03/2023 2012925070-1301 1,1-Dichloroethane 45 01/03/2023 2012915070-1301 1,2-Dichloroethane 49 01/03/2023 2012975070-1301 1,1-Dichloroethene 45 01/03/2023 2012905070-1301 cis-1,2-Dichloroethene 48 01/03/2023 2012965070-1301 trans-1,2-Dichloroethene 48 01/03/2023 2012965070-1301 1,2-Dichloropropane 47 01/03/2023 2012945070-1301 cis-1,3-Dichloropropene 47 01/03/2023 2012945070-1301 trans-1,3-Dichloropropene 47 01/03/2023 2012935070-1301 1,4-Dioxane 700 01/03/2023 201214050060-1401 Ethylbenzene 48 01/03/2023 2012955070-1301 2-Hexanone 110 01/03/2023 201210910070-1301 Methyl iodide (Iodomethane)44 01/03/2023 2012895070-1301 4-Methyl-2-pentanone 94 01/03/2023 20129410070-1301 Methylene chloride 46 01/03/2023 2012925070-1301 Styrene 47 01/03/2023 2012955070-1301 1,1,1,2-Tetrachloroethane 46 01/03/2023 2012925070-1301 1,1,2,2-Tetrachloroethane 45 01/03/2023 2012905070-1301 Tetrachloroethene 47 01/03/2023 2012945070-1301 Toluene 47 01/03/2023 2012945070-1301 1,1,1-Trichloroethane 44 01/03/2023 2012895070-1301 1,1,2-Trichloroethane 48 01/03/2023 2012965070-1301 Trichloroethene 46 01/03/2023 2012925070-1301 Trichlorofluoromethane 50 01/03/2023 20121015070-1301 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 73 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64061-002 64061 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) 1,2,3-Trichloropropane 49 01/03/2023 2012975070-1301 Vinyl acetate 45 01/03/2023 2012895060-1401 Vinyl chloride 45 01/03/2023 2012905070-1301 Xylenes (total)91 01/03/2023 20129110070-1301 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 100 70-130 1,2-Dichloroethane-d4 92 70-130 Toluene-d8 98 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 74 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64116-001 64116 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil 1,4-Dioxane ND 01/04/2023 11195013ug/L1 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 106 70-130 1,2-Dichloroethane-d4 105 70-130 Toluene-d8 110 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 75 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64116-002 64116 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) 1,4-Dioxane 640 01/04/2023 093212850060-1401 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 94 70-130 1,2-Dichloroethane-d4 92 70-130 Toluene-d8 96 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 76 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64120-001 64120 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil Acetone ND 01/04/2023 1300205.0 ug/L1 Acrylonitrile ND 01/04/2023 1300200.80 ug/L1 Benzene ND 01/04/2023 13001.0 0.40 ug/L1 Bromochloromethane ND 01/04/2023 13001.0 0.40 ug/L1 Bromodichloromethane ND 01/04/2023 13001.0 0.40 ug/L1 Bromoform ND 01/04/2023 13001.0 0.40 ug/L1 Bromomethane (Methyl bromide)ND 01/04/2023 13002.0 0.40 ug/L1 2-Butanone (MEK)ND 01/04/2023 1300102.0 ug/L1 Carbon disulfide ND 01/04/2023 13001.0 0.40 ug/L1 Carbon tetrachloride ND 01/04/2023 13001.0 0.40 ug/L1 Chlorobenzene ND 01/04/2023 13001.0 0.40 ug/L1 Chloroethane ND 01/04/2023 13002.0 0.40 ug/L1 Chloroform ND 01/04/2023 13001.0 0.40 ug/L1 Chloromethane (Methyl chloride)ND 01/04/2023 13001.0 0.50 ug/L1 1,2-Dibromo-3-chloropropane (DBCP)ND 01/04/2023 13001.0 0.40 ug/L1 Dibromochloromethane ND 01/04/2023 13001.0 0.40 ug/L1 1,2-Dibromoethane (EDB)ND 01/04/2023 13001.0 0.40 ug/L1 Dibromomethane (Methylene bromide)ND 01/04/2023 13001.0 0.40 ug/L1 trans-1,4-Dichloro-2-butene ND 01/04/2023 13002.0 0.50 ug/L1 1,2-Dichlorobenzene ND 01/04/2023 13001.0 0.40 ug/L1 1,4-Dichlorobenzene ND 01/04/2023 13001.0 0.40 ug/L1 1,1-Dichloroethane ND 01/04/2023 13001.0 0.40 ug/L1 1,2-Dichloroethane ND 01/04/2023 13001.0 0.40 ug/L1 1,1-Dichloroethene ND 01/04/2023 13001.0 0.40 ug/L1 cis-1,2-Dichloroethene ND 01/04/2023 13001.0 0.40 ug/L1 trans-1,2-Dichloroethene ND 01/04/2023 13001.0 0.40 ug/L1 1,2-Dichloropropane ND 01/04/2023 13001.0 0.40 ug/L1 cis-1,3-Dichloropropene ND 01/04/2023 13001.0 0.40 ug/L1 trans-1,3-Dichloropropene ND 01/04/2023 13001.0 0.40 ug/L1 1,4-Dioxane ND 01/04/2023 13005013ug/L1 Ethylbenzene ND 01/04/2023 13001.0 0.40 ug/L1 2-Hexanone ND 01/04/2023 1300102.0 ug/L1 Methyl iodide (Iodomethane)ND 01/04/2023 13005.0 0.40 ug/L1 4-Methyl-2-pentanone ND 01/04/2023 1300102.0 ug/L1 Methylene chloride ND 01/04/2023 13001.0 0.40 ug/L1 Styrene ND 01/04/2023 13001.0 0.41 ug/L1 1,1,1,2-Tetrachloroethane ND 01/04/2023 13001.0 0.40 ug/L1 1,1,2,2-Tetrachloroethane ND 01/04/2023 13001.0 0.40 ug/L1 Tetrachloroethene ND 01/04/2023 13001.0 0.40 ug/L1 Toluene ND 01/04/2023 13001.0 0.40 ug/L1 1,1,1-Trichloroethane ND 01/04/2023 13001.0 0.40 ug/L1 1,1,2-Trichloroethane ND 01/04/2023 13001.0 0.40 ug/L1 Trichloroethene ND 01/04/2023 13001.0 0.40 ug/L1 Trichlorofluoromethane ND 01/04/2023 13001.0 0.40 ug/L1 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 77 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64120-001 64120 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil 1,2,3-Trichloropropane ND 01/04/2023 13001.0 0.40 ug/L1 Vinyl acetate ND 01/04/2023 13005.0 1.2 ug/L1 Vinyl chloride ND 01/04/2023 13001.0 0.40 ug/L1 Xylenes (total)ND 01/04/2023 13001.0 0.40 ug/L1 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 96 70-130 1,2-Dichloroethane-d4 97 70-130 Toluene-d8 96 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 78 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64120-002 64120 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) Acetone 100 01/04/2023 094510010060-1401 Acrylonitrile 92 01/04/2023 09459210070-1301 Benzene 48 01/04/2023 0945965070-1301 Bromochloromethane 48 01/04/2023 0945965070-1301 Bromodichloromethane 48 01/04/2023 0945965070-1301 Bromoform 45 01/04/2023 0945905070-1301 Bromomethane (Methyl bromide)56 01/04/2023 09451135070-1301 2-Butanone (MEK)90 01/04/2023 09459010070-1301 Carbon disulfide 48 01/04/2023 0945965070-1301 Carbon tetrachloride 49 01/04/2023 0945995070-1301 Chlorobenzene 48 01/04/2023 0945955070-1301 Chloroethane 53 01/04/2023 09451075070-1301 Chloroform 45 01/04/2023 0945905070-1301 Chloromethane (Methyl chloride)56 01/04/2023 09451115060-1401 1,2-Dibromo-3-chloropropane (DBCP)49 01/04/2023 0945995070-1301 Dibromochloromethane 53 01/04/2023 09451055070-1301 1,2-Dibromoethane (EDB)49 01/04/2023 0945985070-1301 Dibromomethane (Methylene bromide)48 01/04/2023 0945975070-1301 trans-1,4-Dichloro-2-butene 46 01/04/2023 0945925070-1301 1,2-Dichlorobenzene 47 01/04/2023 0945955070-1301 1,4-Dichlorobenzene 46 01/04/2023 0945935070-1301 1,1-Dichloroethane 47 01/04/2023 0945935070-1301 1,2-Dichloroethane 46 01/04/2023 0945925070-1301 1,1-Dichloroethene 53 01/04/2023 09451065070-1301 cis-1,2-Dichloroethene 46 01/04/2023 0945925070-1301 trans-1,2-Dichloroethene 48 01/04/2023 0945965070-1301 1,2-Dichloropropane 47 01/04/2023 0945955070-1301 cis-1,3-Dichloropropene 51 01/04/2023 09451015070-1301 trans-1,3-Dichloropropene 52 01/04/2023 09451045070-1301 1,4-Dioxane 380 01/04/2023 09457650060-1401 Ethylbenzene 52 01/04/2023 09451035070-1301 2-Hexanone 100 01/04/2023 094510110070-1301 Methyl iodide (Iodomethane)48 01/04/2023 0945975070-1301 4-Methyl-2-pentanone 100 01/04/2023 094510110070-1301 Methylene chloride 46 01/04/2023 0945915070-1301 Styrene 49 01/04/2023 0945995070-1301 1,1,1,2-Tetrachloroethane 50 01/04/2023 09451005070-1301 1,1,2,2-Tetrachloroethane 49 01/04/2023 0945975070-1301 Tetrachloroethene 50 01/04/2023 09451005070-1301 Toluene 49 01/04/2023 0945995070-1301 1,1,1-Trichloroethane 50 01/04/2023 0945995070-1301 1,1,2-Trichloroethane 50 01/04/2023 0945995070-1301 Trichloroethene 51 01/04/2023 09451015070-1301 Trichlorofluoromethane 53 01/04/2023 09451065070-1301 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 79 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64120-002 64120 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) 1,2,3-Trichloropropane 49 01/04/2023 0945975070-1301 Vinyl acetate 43 01/04/2023 0945875060-1401 Vinyl chloride 56 01/04/2023 09451115070-1301 Xylenes (total)99 01/04/2023 09459910070-1301 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 99 70-130 1,2-Dichloroethane-d4 93 70-130 Toluene-d8 96 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 80 of 96 Volatile Organic Compounds by GC/MS - LCSD Batch:Prep Method: Sample ID:YQ64120-003 64120 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD LimitDil(ug/L)(ug/L) Acetone 160 01/04/2023 1109N,+161100 60-14047 201 Acrylonitrile 110 01/04/2023 110911010070-13018 201 Benzene 51 01/04/2023 11091025070-1305.3 201 Bromochloromethane 55 01/04/2023 11091105070-13013 201 Bromodichloromethane 57 01/04/2023 11091145070-13017 201 Bromoform 54 01/04/2023 11091085070-13018 201 Bromomethane (Methyl bromide)55 01/04/2023 11091105070-1302.1 201 2-Butanone (MEK)130 01/04/2023 1109+125100 70-13033 201 Carbon disulfide 50 01/04/2023 11091005070-1303.7 201 Carbon tetrachloride 57 01/04/2023 11091145070-13015 201 Chlorobenzene 55 01/04/2023 11091105070-13014 201 Chloroethane 52 01/04/2023 11091045070-1303.0 201 Chloroform 51 01/04/2023 11091025070-13012 201 Chloromethane (Methyl chloride)48 01/04/2023 1109965060-14015 201 1,2-Dibromo-3-chloropropane (DBCP)58 01/04/2023 11091165070-13016 201 Dibromochloromethane 59 01/04/2023 11091185070-13012 201 1,2-Dibromoethane (EDB)57 01/04/2023 11091145070-13015 201 Dibromomethane (Methylene bromide)57 01/04/2023 11091135070-13016 201 trans-1,4-Dichloro-2-butene 50 01/04/2023 11091005070-1308.0 201 1,2-Dichlorobenzene 54 01/04/2023 11091095070-13014 201 1,4-Dichlorobenzene 53 01/04/2023 11091055070-13013 201 1,1-Dichloroethane 53 01/04/2023 11091055070-13012 201 1,2-Dichloroethane 56 01/04/2023 1109+11350 70-13021 201 1,1-Dichloroethene 54 01/04/2023 11091075070-1301.3 201 cis-1,2-Dichloroethene 51 01/04/2023 11091035070-13011 201 trans-1,2-Dichloroethene 51 01/04/2023 11091025070-1306.7 201 1,2-Dichloropropane 57 01/04/2023 11091135070-13018 201 cis-1,3-Dichloropropene 60 01/04/2023 11091215070-13018 201 trans-1,3-Dichloropropene 63 01/04/2023 11091265070-13019 201 1,4-Dioxane 480 01/04/2023 1109+95500 60-14023 201 Ethylbenzene 57 01/04/2023 11091155070-13011 201 2-Hexanone 140 01/04/2023 1109N,+139100 70-13032 201 Methyl iodide (Iodomethane)53 01/04/2023 11091065070-1309.0 201 4-Methyl-2-pentanone 150 01/04/2023 1109N,+146100 70-13037 201 Methylene chloride 53 01/04/2023 11091065070-13015 201 Styrene 56 01/04/2023 11091125070-13013 201 1,1,1,2-Tetrachloroethane 58 01/04/2023 11091165070-13015 201 1,1,2,2-Tetrachloroethane 54 01/04/2023 11091075070-1309.8 201 Tetrachloroethene 56 01/04/2023 11091125070-13011 201 Toluene 55 01/04/2023 11091105070-13011 201 1,1,1-Trichloroethane 54 01/04/2023 11091085070-1308.3 201 1,1,2-Trichloroethane 57 01/04/2023 11091145070-13014 201 Trichloroethene 59 01/04/2023 11091185070-13015 201 Trichlorofluoromethane 50 01/04/2023 11091005070-1305.8 201 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 81 of 96 Volatile Organic Compounds by GC/MS - LCSD Batch:Prep Method: Sample ID:YQ64120-003 64120 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD LimitDil(ug/L)(ug/L) 1,2,3-Trichloropropane 54 01/04/2023 11091075070-13010 201 Vinyl acetate 50 01/04/2023 11091005060-14014 201 Vinyl chloride 50 01/04/2023 11091005070-13010 201 Xylenes (total)110 01/04/2023 110911210070-13012 201 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 100 70-130 1,2-Dichloroethane-d4 95 70-130 Toluene-d8 97 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 82 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64447-001 64447 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil 1,4-Dioxane ND 01/09/2023 12575013ug/L1 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 87 70-130 1,2-Dichloroethane-d4 88 70-130 Toluene-d8 91 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 83 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64447-002 64447 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) 1,4-Dioxane 460 01/09/2023 09379350060-1401 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 89 70-130 1,2-Dichloroethane-d4 87 70-130 Toluene-d8 90 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 84 of 96 Volatile Organic Compounds by GC/MS - LCSD Batch:Prep Method: Sample ID:YQ64447-003 64447 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD LimitDil(ug/L)(ug/L) 1,4-Dioxane 410 01/09/2023 10398150060-14013 201 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 91 70-130 1,2-Dichloroethane-d4 88 70-130 Toluene-d8 93 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 85 of 96 Volatile Organic Compounds by GC/MS - MB Batch:Prep Method: Sample ID:YQ64454-001 64454 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil 1,4-Dioxane ND 01/09/2023 14525013ug/L1 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 102 70-130 1,2-Dichloroethane-d4 102 70-130 Toluene-d8 107 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 86 of 96 Volatile Organic Compounds by GC/MS - LCS Batch:Prep Method: Sample ID:YQ64454-002 64454 5030B Analytical Method:8260D Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) 1,4-Dioxane 470 01/09/2023 13119550060-1401 Surrogate Q % Rec Acceptance Limit Bromofluorobenzene 104 70-130 1,2-Dichloroethane-d4 97 70-130 Toluene-d8 102 70-130 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 87 of 96 ICP-MS - MB Batch:Prep Method: Prep Date: Sample ID:XQ63573-001 63573 3005A 12/27/2022 0940Analytical Method:6020B Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil Arsenic ND 12/30/2022 04442.0 1.3 ug/L1 Barium ND 12/30/2022 04445.0 1.3 ug/L1 Cadmium ND 12/30/2022 04440.50 0.13 ug/L1 Chromium ND 12/30/2022 04445.0 1.3 ug/L1 Lead ND 12/30/2022 04441.0 0.25 ug/L1 Selenium ND 12/30/2022 04445.0 1.3 ug/L1 Silver ND 12/30/2022 04441.0 0.25 ug/L1 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 88 of 96 ICP-MS - LCS Batch:Prep Method: Prep Date: Sample ID:XQ63573-002 63573 3005A 12/27/2022 0940Analytical Method:6020B Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(ug/L)(ug/L) Arsenic 92 12/30/2022 04549210080-1201 Barium 97 12/30/2022 04549710080-1201 Cadmium 99 12/30/2022 04549910080-1201 Chromium 98 12/30/2022 04549810080-1201 Lead 110 12/30/2022 045410710080-1201 Selenium 89 12/30/2022 04548910080-1201 Silver 98 12/30/2022 04549810080-1201 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 89 of 96 ICP-MS - MS Batch:Prep Method: Prep Date: Sample ID:XL23005-004MS 63573 3005A 12/27/2022 0940Analytical Method:6020B Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec Limit Sample Amount Dil(ug/L)(ug/L)(ug/L) Arsenic 96 12/30/2022 06079610075-125ND1 Barium 140 12/30/2022 060710110075-125411 Cadmium 100 12/30/2022 060710310075-1250.18 1 Chromium 100 12/30/2022 060710010075-1252.8 1 Lead 110 12/30/2022 060710310075-1252.3 1 Selenium 79 12/30/2022 06077910075-125ND1 Silver 82 12/30/2022 06078210075-125ND1 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 90 of 96 ICP-MS - MSD Batch:Prep Method: Prep Date: Sample ID:XL23005-004MD 63573 3005A 12/27/2022 0940Analytical Method:6020B Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date% RPD %Rec Limit % RPD Limit Sample Amount Dil(ug/L)(ug/L)(ug/L) Arsenic 100 12/30/2022 061810010075-1254.3 20ND1 Barium 150 12/30/2022 061810710075-1253.9 20411 Cadmium 110 12/30/2022 061810510075-1252.1 200.18 1 Chromium 100 12/30/2022 061810010075-1250.19 202.8 1 Lead 110 12/30/2022 061810510075-1251.4 202.3 1 Selenium 82 12/30/2022 06188210075-1253.6 20ND1 Silver 85 12/30/2022 06188510075-1253.0 20ND1 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 91 of 96 ICP-MS - MB Batch:Prep Method: Prep Date: Sample ID:XQ63554-001 63554 12/24/2022 0927Analytical Method:7470A Matrix:Aqueous Parameter Result Q LOQ DL Units Analysis DateDil Mercury ND 12/24/2022 13090.00020 0.000091 mg/L1 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 92 of 96 ICP-MS - LCS Batch:Prep Method: Prep Date: Sample ID:XQ63554-002 63554 12/24/2022 0927Analytical Method:7470A Matrix:Aqueous Parameter Result Q % Rec Spike Amount Analysis Date %Rec LimitDil(mg/L)(mg/L) Mercury 0.0019 12/24/2022 1312960.0020 80-1201 Note:Calculations are performed before rounding to avoid round-off errors in calculated results LOQ = Limit of Quantitation ND = Not detected at or above the DL J = Estimated result < LOQ and > DL N = Recovery is out of criteria P = The RPD between two GC columns exceeds 40% + = RPD is out of criteria _DL = Detection Limit * = RSD is out of criteria 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 93 of 96 Chain of Custody and Miscellaneous Documents 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 94 of 96 PACE ANALYTICAL SERVICES, LLC 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 95 of 96 PACE ANALYTICAL SERVICES, LLC 106 Vantage Point Drive West Columbia, SC 29172 (803) 791-9700 Fax (803) 791-9111 www.pacelabs.com Pace Analytical Services, LLC (formerly Shealy Environmental Services, Inc.) Page 96 of 96 APPENDIX C HISTORICAL GROUNDWATER ANALYTICAL RESULTS TABLE 1 GROUNDWATER GAUGING DATA GASTON COUNTY - CLOSED CRAMERTON LANDFILL (PERMIT NO.: 36-01) CRAMERTON, NORTH CAROLINA DECEMBER 20 & 21, 2022 Well ID Latitude Longitude Drilling Install TD TD Screen Sand Bentonite Grout TOC DTW DTW (degrees)(degrees)Company Date BTOC (ft)BGS (ft)Depth BGS (ft)BGS (ft)BGS (ft)BGS (ft)Elevation (ft)BTOC (ft)Elevation (ft) MW-1 35.245683 -81.088322 Atec 2/2/94 23.9 21 11-21 9-21 8-9 0-8 702.23 21.85 680.38 MW-2 35.243256 -81.089040 Atec 2/16/94 17.5 16 4-14 3-14 2-3 0-2 652.34 4.25 648.09 MW-2D 35.243575 -81.089144 Geologic Ex.8/17/00 53 50 40-50 ------656.54 8.60 647.94 MW-3 35.242310 -81.087524 Atec 2/8/94 15.5 13 3-13 2-13 1-2 0-1 643.73 10.63 633.10 MW-4 35.243791 -81.087339 Atec 2/17/94 10 7.5 3.5-7.5 3-7.5 2-3 0-2 667.20 7.58 659.62 MW-5 35.241956 -81.087072 Atec 2/2/94 11.7 8.5 5-8.5 4-8.5 2-4 0-2 646.88 11.60 635.28 MW-6 35.239941 -81.086173 Atec 2/17/94 29 27 21-27 20-27 18-20 0-18 682.36 27.29 655.07 MW-6D 35.240045 -81.086169 Geologic Ex.8/17/00 56 52 42-52 ------685.74 32.08 653.66 MW-7 35.240835 -81.084008 Atec 7/16/94 24.5 22 17-22 16-22 15-16 0-15 ------ MW-7A 35.241155 -81.083876 Geologic Ex.8/17/00 38 35 25-35 23-35 21-23 0-21 680.03 28.45 651.58 MW-8 35.241749 -81.084505 Atec 2/3/94 26 23 8-23 7-23 5.6-7 0-5.6 671.01 4.31 666.70 Notes: Depth to water measurements collected on December 20 & 21, 2022 to the nearest 0.01 foot with a depth-to-water meter. TD=total depth;BTOC=below top of casing;TOC=top of casing;DTW=depth to water;ft=feet Latitude and longitude determined on February 8 & 9, 2018 with My GPS Coordinates app. TABLE 2 FIELD PARAMETER DATA GASTON COUNTY - CLOSED CRAMERTON LANDFILL (PERMIT NO.: 36-01) CRAMERTON, NORTH CAROLINA DECEMBER 20 & 21, 2022 Sample ID Field Parameters pH (standard units)K (uS/cm)T (Celsius) MW-1 5.86 430 12.4 MW-2 5.83 420 12.1 MW-2D 8.18 390 13.5 MW-3 6.47 180 13.6 MW-4 6.38 1,290 11.1 MW-5 ------ MW-6 6.43 1,790 12.6 MW-6D 7.17 2,360 11.7 MW-7A 6.14 1,480 13.0 MW-8 6.21 190 13.2 Upstream 6.42 580 9.2 Downstream 6.69 220 8.7 Notes: Field parameters collected on December 20 & 21, 2022 by Buxton Environmental, Inc. utilizing a calibrated HANNA Groline HI9814 meter. Field parameters at monitor wells collected after purging 3 well volumes of water or until dryness with a disposable PVC bailer and new nylon string. SU = standard units uS/cm = microsiemens per centimeter K = conductivity; T = temperature "--" = limited water (MW-3) or dry (Downstream) rk:table:crampara.1221 TABLE 3 GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL (PERMIT NO.: 36-01) CRAMERTON, NORTH CAROLINA DECEMBER 20 & 21, 2022 Sample ID LOQ MDL MW-1 MW-2 MW-2D MW-3 MW-4 MW-5 MW-6 MW-6D MW-7A MW-8 NCGPS Appendix I VOCs (EPA 8260D) Acetone 20 5 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6,000 Benzene 1 0.4 BDL BDL BDL BDL 0.51J BDL 4.1 2.5 4.1 BDL 1 Chlorobenzene 1 0.4 BDL BDL BDL BDL 8.8 BDL 2.4 1.9 6.9 BDL 50 Chloroethane 2 0.4 BDL BDL BDL BDL BDL BDL 0.67J BDL BDL BDL 3,000 1,2-Dichlorobenzene 1 0.4 BDL BDL BDL BDL 0.94J BDL 0.78J 0.83J BDL BDL 20 1,4-Dichlorobenzene 1 0.4 BDL BDL 0.46J BDL 5.1 BDL 22 12 10 BDL 6 1,1-Dichloroethane 1 0.4 BDL BDL 1.1 BDL BDL BDL 0.89J 1.1 BDL BDL 6 1,2-Dichloroethane 1 0.4 BDL BDL BDL BDL BDL BDL BDL 0.55J BDL BDL 0.4 1,1-Dichloroethene 1 0.4 BDL BDL 0.87J BDL BDL BDL BDL BDL BDL BDL 7 cis-1,2 Dichloroethene 1 0.4 BDL BDL 0.82J BDL BDL BDL 0.79J BDL BDL BDL 70 1,4-Dioxane 50 13 BDL BDL BDL BDL 86H BDL 85H 260H 110H BDL 3 Ethylbenzene 1 0.4 BDL BDL BDL BDL BDL BDL 0.42J 0.53J BDL BDL 600 Toluene 1 0.4 BDL BDL BDL BDL BDL BDL 0.43J 0.43J 0.83J BDL 600 Vinyl Chloride 1 0.4 BDL BDL BDL BDL BDL BDL 0.67J BDL BDL BDL 0.03 Xylenes 1 0.4 BDL BDL BDL BDL BDL BDL 1.8 2.7 1 BDL 500 EPA 8260D (SIM) 1,4-Dioxane 3 1 NT BDL 5.4 NT 110 NT 120 330S 130 BDL 3 RCRA Metals (EPA 6020B & 7470A) Arsenic 2 1.3 BDL 9.5 BDL BDL BDL NT 2.3 2.5 3.9 BDL 10 Barium 5 1.3 61 110 24 41 270 NT 6,200 150 530 28 700 Cadmium 0.5 0.13 BDL 0.14J BDL 0.18J 0.14J NT BDL BDL 0.29J BDL 2 Chromium 5 1.3 3.2J BDL BDL 2.8J BDL NT BDL BDL BDL BDL 10 Lead 1 0.25 0.88J 1.4 BDL BDL BDL NT BDL BDL BDL BDL 15 Mercury 0.2 0.091 BDL BDL BDL BDL BDL NT BDL BDL BDL BDL 1 Selenium 5 1.3 BDL BDL BDL BDL 1.7J NT 2.2J 1.9J 1.4J BDL 20 Notes: Groundwater samples collected on December 20 & 21, 2022 and analyzed for Appendix I volatile organic compounds (VOCs) by EPA Method 8260D (plus 1,4-dioxane (non-SIM)) and RCRA metals by EPA Methods 6020B and 7470A. Samples collected at MW-2, MW-2D, MW-4, MW-5, MW-6, MW-6D, MW-7A also analyzed for 1,4-dioxane by EPA Method 8260D (SIM). Analyses by Pace Analytical Services, LLC. (NC Certification No.: 329) in West Columbia, SC. Groundwater sample collected after purging 3 well volumes of water or until dryness with a disposable PVC bailer and new nylon string. NCGPS=North Carolina Groundwater Protection Standard (April 11, 2022) LOQ = limit of quantitation (aka: report limit (RL) or practical quantitation limit (PQL)) is the lowest quantitation limit attainable by the EPA method MDL = method detection limit is the lowest qualified limit (estimated result) attainable by the EPA method BDL = Below Detection Limit NT = not tested due to dry conditions or limited water Bold and shade denotes groundwater sample above established NCGPS (J-flagged data not considered). data presented in micrograms per liter (ug/l) S = MS/MSD failure B = detected in method blank J = estimated result <LOQ or PQL and >=MDL (According to NCAC Title 15A Subchapter 2L North Carolina Groundwater Quality Standards (primary standard used to establish NCGPS's) dated April 1, 2022, J-flagged groundwater data exceeding the standard does not constitute an exceedance). TABLE 4 SURFACE WATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL (PERMIT NO.: 36-01) CRAMERTON, NORTH CAROLINA DECEMBER 20 & 21, 2022 Sample ID LOQ MDL Upstream Downstream NCSWWS Appendix I VOCs (EPA 8260D)NA NA BDL BDL NA EPA 8260D (SIM) 1,4-Dioxane 3 1 BDL 2.4J 0.35 (NCTSW) RCRA Metals (EPA 6020B & 7470A) Barium 5 1.3 77 42 1,000 (NC2BRB) Cadmium 0.5 0.13 0.19J BDL 2(NC2BRB) Lead 1 0.25 0.85J BDL 25 (NC2BRB) Notes: Surface water samples collected on December 20 & 21, 2022 and analyzed for Appendix I volatile organic compounds (VOCs) by EPA Method 8260D; 1-4-Dioxane by EPA Method 8260D (select ion monitoring (SIM)); and RCRA metals by EPA 6020B and 7470A. Analyses by Pace Analytical Services, Inc. (NC Certification No.: 329) in West Columbia, SC. LOQ = limit of quantitation (aka: report limit (RL) or practical quantitation limit (PQL)) is the lowest quantitation limit attainable by the EPA method MDL = method detection limit is the lowest qualified limit (estimated result) attainable by the EPA method BDL = Below Detection LimitNCSWWS = lowest of: established North Carolina Surface Water and Wetland Standards (15A NCAC 02B) (Redbook, May 1, 2007)(NC2BRB); North Carolina 15A NCAC 02B Water Quality Standards for Surface Water (June 10, 2019) (NC2B); or North Carolina In-Steam Target Values for Surface Water (NCTSW) for Duharts Creek (Class WS-V Water); or EPA National Recommended Water Quality Criteria for Aquatic Life and Human Health (EPAWQC). Criteria. VOCs = volatile organic compounds data presented in micrograms per liter (ug/l) J = estimated result <LOQ and >=MDL B = detected in method blank NT* = not test due to dry conditions bold and shade denotes above established NCSWWS (J-flagged data not considered since estimated) MW-1 HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 4/97 9/97 4/98 9/98 4/99 9/99 5/00 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 NCGPS Appendix I VOCs Acetone BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.9J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6,000 CD BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 7.5 BDL BDL BDL BDL BDL BDL BDL 0.16J BDL BDL BDL BDL BDL BDL 700 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 3 RCRA Metals Arsenic BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 5.9J BDL 7.3 BDL BDL BDL 6.1BJ 5.4J 10 Barium 460 770 680 1,100 530 1,200 BDL BDL BDL 126 93 40 66 240 110 110 220 290 130 470 32 70 130 67 550 41 22 35 57 73 160 1,000 700 Cadmium BDL BDL BDL 1.1 2 5 3 2 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.71J 1.2J BDL BDL 4.4 BDL BDL 0.16J BDL BDL 0.76J BDL 2 Chromium BDL 18 8 26 BDL 21 BDL BDL BDL BDL BDL BDL BDL 6.1 BDL BDL BDL 7.8 BDL 16 16 3.6J 3.7J 2.8J 15 BDL BDL BDL 3.3J 3.2J 2.4J 52B 10 Lead 7 24 28 21 13 23 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.9 22 2.2J 5.3J BDL 3.7BJ 4.8J 10 14 15 Mercury 0.31 0.3 BDL 1.6 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL .072J BDL BDL 1 Selenium BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.1BJ BDL BDL BDL 20 Silver BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.77BJ BDL BDL BDL BDL 1.1BJ BDL BDL BDL 20 Date 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/19 11/19 7/20 12/20 8/21 12/21 8/22 12/22 NCGPS Appendix I VOCs Acetone BDL BDL BDL BDL BDL BDL BDL BDL 3.1J BDL 5.3J BDL BDL BDL BDL BDL BDL BDL 5.3J BDL 6,000 CD BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 700 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT BDL BDL BDL NT NT NT NT NT NT 3 RCRA Metals Arsenic BDL 12 4.4BJ BDL BDL 8.6J BDL 1.2 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 10 Barium 260 750 27 69 42 1,000 61 160 340 95 87 44 24 190 31 28 37 41 75 61 700 Cadmium 1.3J BDL BDL BDL 1J 1.3J 0.22 0.79 BDL 0.16J BDL BDL BDL BDL BDL BDL BDL 0.48J 0.39J BDL 2 Chromium 7.3 27 BDL BDL BDL 33 1.5J BDL 10J 3.9J 3.1J 3J 2.1BJ 4.5J 12 31 BDL 1.7J 1.8J 3.2J 10 Lead 71B 17 BDL 2.7J 120 20 1 0.6J 3.9 1 0.67J 0.44J 0.27J 2.3 0.81J BDL BDL BDL 0.45J 0.88J 15 Mercury BDL BDL .04BJ .021J BDL .065BJ BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 Selenium BDL BDL BDL 2.9J BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.6J BDL BDL BDL BDL BDL BDL 20 Silver BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to 2019. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOCs = volatile organic compounds CD = carbon disulfide; CB = chlorobenzene; DCB = dichlorobenzene; DCE = dichloroethene; EB = ethlbenzene; VC = vinyl chloride bold and shade denotes above NCGPS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL MW-2 HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 4/97 9/97 4/98 9/98 4/99 9/99 5/00 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/1911/19 7/20 12/20 8/21 12/218/2212/22 NCGPS Appendix I VOC's Acetone BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.5J BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.7J BDL 4.2J BDL BDL BDL BDL BDL BDL BDL 7.3J BDL 6,000 Benzene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 1.1 BDL BDL BDL BDL 0.87J 0.8J 0.65J 0.69J NT 0.53J 0.65J 0.84J 0.31J 0.65J 0.64J 0.56J 0.4J 0.59J 0.63J 0.61J 0.66J 0.59J 0.61J 0.62J 0.62J 0.6J 0.6J BDL 0.51J0.58J0.54JBDL0.57J 0.57J0.59J BDL 1 CB BDL 5.1 5.2 BDL 7 8 7 6 7.8 6.8 6.2 8.4 7.5 2.2 4.2 5 3.4 4 4.1 BDL 4.9 5 5 5.4 NT 4.3 6.4 5.8 2.5 4.9 4.6 3.9 5.9 4.3 4.9 3.8 5 3.8 4.4 3.9 3.4 3.6 4.1 0.53J 4.1 4.8 4.1 BDL 3.5 4.2 4.5 BDL 50 CD BDL BDL BDL BDL BDL BDL BDL 35 BDL BDL BDL BDL 8.5 BDL BDL BDL BDL BDL BDL BDL 0.12J BDL BDL 0.23J NT 0.47J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 700 1,2-DCB BDL 5.2 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 1,4-DCB 5 BDL 5.4 BDL 6 7 BDL BDL BDL 4.1 3.6 4.9 BDL BDL 3.6 3.6 2.8 3.5 3.7 BDL 3.4 3.4 3.3 3.6 NT 0.41J 3.6 4.2 1.9 3.6 2.9 3.1 3.5 3 3.4 3.2 3.3 3 3.1 3.4 3.4 3.4 3.1 BDL 2.9 3.3 2.9 0.43J 2.8 3.2 3.2 BDL 6 1,1-DCA 6.8 5 BDL BDL 6 8 BDL 5 5.2 3.5 2.8 2.7 1.8 BDL 2.4 2.3 1.9 2 1.7 1.7 1.8 2 1.2 1.1 NT 0.85J 0.85J 1.3 0.36J 0.83J 0.73J 0.59J 0.73J 0.78J 0.61J 0.63J 0.63J 0.62J 0.5J BDL 0.55J 0.44J 0.45J BDL 0.99J BDL BDL 1.2 BDL BDL BDL BDL 6 1,1-DCE BDL BDL BDL BDL BDL 7 BDL BDL BDL 3.4 2.7 3.2 2.8 2.5 3.6 3 2.2 3.6 2.8 3 2.8 2 2.2 2 NT 1.6 1.3 2.9 0.64J 1.7 1.7 1.2 1.3 1.5 1.3 1.5 1.2 1.2 0.99J 1.5 1.2 1 1 BDL BDL0.74J0.81J0.79J0.49J 0.67J 0.6J BDL 7 cis-1,2-DCE 11 8.8 BDL 6.6 7 11 BDL 7 5.6 3.9 3.2 3.2 2.9 1 1 3.7 3 BDL 2.8 2.3 2.6 2.3 2.2 2 NT 1.4 1.5 2.8 0.73J 2 1.6 1.6 1.4 1.7 1.4 1.5 1.7 1.6 1.4 1.5 1.6 1.4 1.5 BDL 1.4 1.2 1.1 0.78J BDL 1.1 1 BDL 70 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT BDL 19J 20J BDL BDL 14J BDL 14J BDL NS MI BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.58J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NS Styrene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.9 NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 70 TCE BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.18J BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3 1,2,3-TCP BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.18J BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL 0.99J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.005 VC BDL BDL BDL BDL BDL 11 12 BDL BDL 5 5 4.3 3.6 BDL 4.1 2.9 2.5 3.9 2 2.7 2.2 1.8 1.8 1.5 NT 1.3 1.2 0.8J BDL 1.4 1 0.82J 1.2 1.4 1.1 BDL 1 0.98J 0.73J 0.64J 0.95J 0.77J 0.94J BDL 0.58J0.61J0.56JBDL BDL 0.47JBDL BDL 0.03 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 3.4 15 23 19 5.3 14 14 12 BDL 3 RCRA Metals Arsenic BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 5.1 BDL 6.1 BDL 6 BDL BDL BDL 6.1 BDL NT BDL 5.7J 4J 8.9J 9.8BJ 8.7BJ BDL BDL 7.1J 4.6BJ BDL 2.7J 4.9J 2.9 BDL BDL BDL 3.8 BDL 2.2 3.6 4.3 5 BDL BDL BDL 9.5 10 Barium 420 520 300 490 BDL BDL BDL BDL BDL 175 262 180 200 260 300 640 220 300 370 230 220 420 390 320 NT 260 210 320 260 150 230 160 270 260 170 140 210 200 160 160 140 210 240 140 190 270 200 260 160 BDL 170 110 700 Cadmium BDL BDL BDL BDL BDL 3 5 2 2 BDL BDL BDL BDL BDL BDL BDL 1.4 BDL 6.1 BDL 2.1 1.7J 2.8 1.1J NT 2.4 BDL 1.1J 1J BDL 1.8J BDL 1.9J 1.2J BDL 1.4J 5 2.4J 0.21 0.2 BDL 1.2 1.1 BDL 1.2 1 2 2.5 BDL BDL 0.24J0.14J 2 Chromium BDL 11 2 2.9 BDL 12 BDL BDL BDL BDL 9 BDL BDL BDL 7.4 14 BDL 6.5 11 BDL 3.7J 14 10 6.2 NT 4.1 BDL BDL 3J BDL BDL BDL 3.8J 4.6J BDL BDL 3.2J 10J BDL 3.7J BDL 2.6J 4.9J 1.4J 3.3BJ 4.5J 9.8 3.2J BDL BDL BDL BDL 10 Lead 7 32 18 19 BDL 23 BDL BDL BDL BDL 7 5.7 BDL 7.1 14 34 4.8 9.9 16 BDL 2.2J 12 25B 19 NT 9.8 9J 12 4.7BJ BDL 13 BDL 48B 16 2.3BJ BDL 8.5J 5.5J .45J BDL BDL 4.1 7.2 0.26J 3 11 6 9.6 BDL BDL BDL 1.4 15 Mercury BDL 0.4 BDL BDL BDL 0.2 BDL BDL BDL BDL BDL BDL BDL BDL 0.13 0.11 0.12 BDL 0.22 BDL 0.11 0.21 0.22 0.16 NT 0.11 .066J 0.27 .075J .088J .058J BDL .019J BDL .057BJ .054J .049J 0.1B BDL 0.035JBDL 0.12 0.12J BDL BDL BDL BDL 0.2 BDL BDL BDL BDL 1 Selenium BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 5.4 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.1J NT BDL BDL BDL 2.7BJ 2.6J 12 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.4J BDL BDL BDL BDL BDL BDL 20 Silver BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.2BJ BDL BDL 1.3BJ NT 2.6 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.4J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.33J BDL BDL BDL BDL 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to December 2020. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOC's = volatile organic compounds; CD = carbon disulfide; CB = chlorobenzene; DCB = dichlorobenzene; DCA = dichloroethane; DCE = dichloroethene; MI = methyl iodide; TCE = trichloroethene; TCP = trichloropropane; VC - vinyl chloride bold and shade denotes above NCGQS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL NT = not tested MW-2D HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/19 11/19 7/20 12/20 8/21 12/21 8/22 12/22 NCGPS Appendix I VOC's Acetone BDL 94 29.9 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6.1J BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.4J 2.6J BDL 5.3J 8.1J 7.5J BDL BDL BDL BDL BDL BDL BDL BDL BDL 6,000 Benzene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.58J BDL BDL BDL BDL 1 Bromoform BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.35J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4 Carbon Disulfide BDL BDL BDL BDL 2.8 BDL BDL BDL BDL BDL BDL BDL BDL 0.73J BDL BDL 1 NT 2.1 0.1J BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.2J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 700 Chlorobenzene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.29J 0.22J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 50 Chloromethane BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.36J BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.55J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3 1,4-DCB BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.26J 0.32J BDL BDL NT BDL 0.34J 0.44J BDL BDL BDL 0.45J 0.36J 0.41J 0.42J 0.42J 0.46J BDL 0.46J 0.52J 0.6J 0.56J 0.54J 0.6J 0.46J 0.55J 0.55J 2.9 0.47J BDL 0.44J 0.46J 6 1,1-DCA BDL BDL 2.7 3.4 3.4 2.6 BDL 2.6 3.2 3 2.7 2.7 2.8 2.2 3.4 1.8 2.4 NT 2.1 2.3 3.1 1.8 2.2 2 1.7 2.3 2.1 2.2 2 1.6 2 1.6 1.5 1.6 1.4 1.6 1.6 1.3 1.4 1.4 0.74J 1.3 1 1.2 1.1 6 1,1-DCE BDL BDL BDL BDL 1.1 1.5 BDL 1.1 1.3 1.1 1.5 1.3 1.7 1.2 1.4 1.1 1.8 NT 1.1 1.3 2.4 1.4 1.6 1.4 1.4 1.6 1.5 0.91J 1.2 0.97J 1.6 1 1.8 1.3 1.1 1.1 1.6 1.1 0.97J 1.1 BDL 1 0.6J 0.61J 0.87J 7 cis-1,2-DCE BDL BDL BDL BDL 1.7 1.7 BDL 1.8 2 1.9 BDL 1.8 1.9 1.6 2 1.3 2 NT 1.4 1.7 2.2 1.6 1.6 1.5 1.6 1.6 1.6 1.7 1.5 1.2 1.8 1.2 1.5 1.3 1.3 1.1 1.5 1.1 1.2 1.1 1.1 1.2 0.59J 0.85J 0.82J 70 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT BDL BDL BDL BDL 19J BDL BDL BDL BDL 3 MC BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.23J 0.58BJ BDL BDL NT BDL 0.45J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 5 Methyl Iodide BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.52J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NS Tetrachloroethene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.38J 0.45J 0.28J 0.46J NT 0.34J 0.29J BDL 0.37J 0.38J 0.26J 0.34J 0.37J 0.36J BDL 0.35J 0.26J 0.4J 0.27J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.7 Trichloroethene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.24J 0.3J 0.22J 0.24J NT 0.21J 0.21J BDL 0.22J 0.27J 0.22J 0.23J 0.18J 0.25J BDL 0.18J BDL 0.29J 0.19J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3 Vinyl Chloride BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.46J BDL BDL BDL BDL 0.03 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 5.5 4.3 5.9 6.7 16 5.5 4.8 5.4 5.4 3 RCRA Metals Arsenic BDL BDL 13 11 BDL BDL BDL 7.7 BDL 7.1 BDL BDL BDL 4.7J BDL BDL BDL NT BDL BDL BDL 7.7J 9.5BJ 6.6BJ BDL 12J 5J 9.4BJ BDL BDL BDL 0.46J 0.57J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 10 Barium BDL BDL 86 96 38 49 43 55 29 26 BDL BDL 27 14J 30 19J 15J NT 16 14J 9.7J 20J 10J 11J 8.8J 1.6J 14J 13 10J 16J 17J 19 15 14 13 11 17 22 27 31 40 31 32 56 24 700 Cadmium 2 3 BDL BDL BDL BDL BDL BDL BDL 1.1 1 BDL 1.6 BDL BDL 1.5J BDL NT 1.1 BDL BDL BDL BDL 0.86J BDL BDL 0.93J BDL BDL 0.9J 0.9J 0.42 0.52 0.13J 0.22J 0.15J 0.16J BDL 0.49J BDL 0.49J BDL 0.36J 0.56 BDL 2 Chromium BDL BDL 13 15 BDL 5.1 5.2 6.2 BDL BDL BDL BDL BDL BDL 3.7J BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL 2.7J BDL BDL BDL 1J BDL BDL BDL BDL BDL BDL 1.5BJ BDL BDL BDL BDL BDL BDL BDL 10 Lead BDL BDL 19 24 16 10 8.7 14 9.5 4.5 5.4 BDL 4.8 BDL 4.3 6.3B 4.2 NT 2.9 7.1J BDL 4.5BJ BDL 4.8J BDL 21B 7.3J BDL BDL BDL BDL 0.36J 0.21J BDL BDL BDL BDL BDL 0.71J BDL 1.2 BDL BDL BDL BDL 15 Mercury BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL .064J 6.7J BDL BDL .022J .037BJ .016J BDL .05BJ BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 Selenium BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL 5.5BJ BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 Silver BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.52BJ NT 1.2 BDL BDL 0.76BJ BDL 0.48J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to 2020. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOC's = volatile organic compounds; DCB = dichlorobenzene; DCA = dichloroethane; DCE = dichloroethene; MC = methylene chloride bold and shade denotes above NCGQS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL NT = not tested rk:table:cramhistgw.mw2D MW-3 HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 4/97 9/97 4/98 9/98 4/99 9/99 5/00 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/19 11/19 7/20 12/20 8/21 12/21 8/22 12/22 NCGPS Appendix I VOCs Acetone BDL BDL BDL BDL BDL BDL BDL 110 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.6J 8.6 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.7J BDL BDL 4J BDL 5.4J BDL 2J BDL BDL BDL BDL BDL BDL BDL 6,000 Benzene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.19J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 BF BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.37J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4 CT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.45J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.3 CD BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.82J 0.61J BDL 0.79J BDL 0.36J 0.16J BDL BDL BDL BDL 0.68J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 700 CB BDL 8.4 BDL 9.7 BDL 11 BDL BDL BDL BDL BDL BDL BDL BDL 1.6 1.4 3.5 BDL 3 BDL 3.4 BDL BDL 0.58J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 50 CM BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.4J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3 1,4-DCB BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.47J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6 1,2-DCA BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.52J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.4 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT BDL BDL BDL NT NT 15J BDL BDL BDL 3 4-M-2-P BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.66J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 100 Styrene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.18J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 70 Toluene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 17 BDL BDL BDL BDL BDL 2.6 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.59J BDL BDL BDL BDL BDL BDL BDL 600 1,2,3-TCP BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.54J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.005 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 1.9J BDL BDL NT NT NT 4.6 NT NT 3 RCRA Metals Arsenic BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6.4 BDL BDL BDL NT BDL BDL BDL BDL BDL NT 5.5J 6.4BJ 6.4BJ NT 4.8BJ BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL 10 Barium 230 1,200 280 2,200 BDL 1,200 BDL BDL BDL 263 177 140 120 190 130 240 170 570 260 100 140 NT 110 180 120 230 65 NT 120 140 47 NT 48 71 56 89 48 50 64 NT 68 140 44 45 55 90 48 38 140 85 NT 41 700 Cadmium BDL BDL BDL BDL 1 5 2 1 BDL 3 BDL BDL BDL BDL BDL BDL BDL 1.3 BDL 1.2 1.4J NT 1.1J 2.1 0.95J 1.4J BDL NT BDL 4.7 BDL NT 0.83J 0.8J BDL 0.6J 1.1J 3.5J 0.36 NT BDL 0.35J 0.23J 0.36J 0.17J 0.44J 0.44J 0.16J 0.75 1.5 NT 0.18J 2 Chromium BDL 61 9 42 BDL 40 BDL BDL BDL BDL BDL BDL BDL 5 BDL 9 BDL 29 8.3 6.6 2.4J NT BDL BDL BDL 4.8 BDL NT 12 BDL BDL NT 4.2J 2.6J BDL BDL BDL 2.8J 1.4J NT 1.8J 2J 4.2J 4J 4.3BJ 4.4J 1.3J 1.7J BDL BDL NT 2.8J 10 Lead BDL 26 13 18 BDL 21 BDL BDL BDL BDL BDL BDL BDL BDL BDL 6.4 BDL 6.1 BDL BDL BDL NT BDL 3.5 7.7J 4.6J 2.1J NT 5.4BJ BDL 3J NT BDL 2J BDL 2J BDL BDL 0.97J NT 1.1 0.92J 1.6 2.2 1.4 3.5 0.9J 1.1 0.76J BDL NT BDL 15 Mercury BDL 0.3 BDL 0.32 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL NT BDL .082J 0.13 NT .068J .035J.073BJ .018J BDL.062BJBDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL 1 Selenium BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL 3.2J BDL 3.8J BDL NT 8.2BJ BDL 2.7J NT BDL BDL BDL BDL BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL 20 Silver BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.5BJ NT 2.1J 1.1BJ BDL 2.6J BDL NT 1.9BJ BDL BDL NT BDL BDL BDL 1.1J BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL NT BDL 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to 2019. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOCs = volatile organic compounds BF = bromoform; CD = carbon disulfide; CT = carbon tetrachloride; CB = chlorobenzene; CM = chloromethane; DCB = dichloroenzene; TCP = trichloropropane bold and shade denotes above NCGQS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL NT = not tested rk:table:cramhistgw.mw-3 MW-4 HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 4/97 9/97 4/98 9/98 4/99 9/99 5/00 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/167/17 11/17 5/18 11/18 5/1911/197/2012/208/2112/218/22 12/22NCGPS Appendix I VOCs Acetone BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 5J BDL BDL 7J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 7.6J 2.4J 1.8J BDL 4.3J 2.5J 5.4J BDL 12J BDL BDL BDL BDLBDL 6.3J BDL 6,000 Benzene BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL 1.9 1.8 1.6 1.3 1.8 1.4 1.8 1 2 1.6 1.2 0.7J 0.96J 0.74J 0.74J 0.41J 0.35J 0.46J 0.14J 0.45J 0.18J BDL 0.69J BDL 1.2 0.99J0.66J0.53JBDL BDL0.64J0.68J 1.5 BDL 1.1 1 1.1 0.51J 1 2-BT BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2J BDL BDLBDL BDL BDL BDL BDLBDL BDL BDL 4,000 CD 11 BDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 7.7 BDL BDL BDL BDL BDL BDL BDL 0.2J BDL BDL 0.38J BDL 0.28J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.12J BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDLBDL BDL BDL 700 CB BDLBDLBDL BDL 7 9 BDL BDL 6.9 5.7 6.1 3.2 4.3 3.8 7 8.5 7 9 10 10 12 8.1 10 9.8 9.3 8.6 6.2 12 9.6 8.5 6.8 7.1 5.8 10 2.2 1.6 12 0.96J 13 9.8 14 9.6 8.4 BDL 9.7 13 14 5.1 19 16 17 8.8 50 CA BDLBDLBDL BDL BDL BDL BDL BDL BDL 3.3 4 BDL BDL 3 2 BDL BDL 2.1 BDL BDL 0.96J BDL 1.4J 1.2J BDL 1.3J 0.58J 0.5J 0.7J BDL 0.72J 0.49J 0.62J 0.85J BDL BDL 0.66J BDL BDL BDL0.78J0.43J0.46J BDLBDL0.59J0.72JBDL0.91J0.73JBDL BDL 3,000 1,2-DCB BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL 1.4 1.4 1.1 1.4 1.5 1.3 1.7 1.1 1.4 1.2 0.92J BDL 0.69J 1.2 1.1 0.87J 0.76J 0.88J 0.64J 0.99J BDL BDL 1.2 BDL 0.87J 0.98J 1.3 0.88J0.67J BDL0.59J0.88J0.87J0.43J 1.1 1.2 1.2 0.94J 20 1,4-DCB 11 12 6.6 13 21 21 9 7 19 14.3 16 8.4 11 11 13 13 11 13 13 11 14 9.7 14 12 10 5.9 6.5 8.8 9.6 7 6.2 5.3 5.1 8.1 1.5 3 8.9 0.7J 7.2 7.5 12 6.6 5.4 6.7 5.3 5.0 8.6 3 6.7 6.1 9.4 5.1 6 1,1-DCA BDLBDLBDL BDL BDL BDL BDL BDL 11 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.25J 0.72J 0.14J BDL BDL 0.13J BDL 0.14J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDLBDL BDL BDL 6 cis1,2DCE BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.29J 0.18J 0.15J 0.15J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDLBDL BDL BDL 70 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 140 73 130 81 42J 130 160 130 86H 3 MI BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.29J 0.18J 0.15J 0.15J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.72J BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDLBDL BDL BDL NS Toluene BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.18J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL 2.2 BDL BDL BDLBDL BDL BDL 600 Xylenes BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL 1.9 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDLBDL BDL BDL 500 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 95 69 140 97 39 140 160 130 110 3 RCRA Metals Arsenic BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6.3J BDL BDL BDL BDL BDL 0.46J BDL BDL BDL BDLBDL 1.4J BDL BDL BDLBDL 1.7J BDL 10 Barium 690 830 590 850 BDL 530 BDL BDL BDL 665 652 340 400 660 420 840 780 890 640 700 94 690 620 480 400 410 190 620 460 200 240 440 89 400 68 240 180 240 300 560 500 560 350 140 280 540 490 310 750 570 670 270 700 Cadmium 11 1 BDL BDL 1 3 8 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.9 3 1.6 1.6 2 1.4J 0.82J BDL BDL 0.69J 0.64J BDL 2.6 1.6J 0.91J 1.2J 0.62J 1.7J 1.4J 1.3J 3.6J 1.4 0.49 BDL 0.3J 0.34J0.38J0.45J0.33J0.15JBDL BDL0.17J 0.7 0.14J 2 Chromium 11 35 31 26 16 13 BDL BDL BDL 6 9 5 BDL 8.7 BDL BDL BDL 29 12 BDL 37 2.6J 5.1 10 4.9J BDL 3.3J BDL 6.9 BDL BDL BDL BDL 6.7 BDL BDL 1.2J 3.9J 3.1J BDL BDL 2.1J 8.8 BDL 5.2B 6 BDL BDL BDLBDL 3.4J BDL 10 Lead 14 30 34 16 BDL BDL BDL BDL BDL BDL BDL 9.6 BDL BDL BDL BDL 4 8 BDL BDL 15 BDL 10B 9.1 7.1J BDL BDL BDL 4.7BJ BDL BDL BDL 4BJ 8.7J 4.9BJ BDL BDL 5.5J 1.8 0.36J0.33J0.78J 3.9 BDL 2.5 3.2 BDL 0.44J0.25JBDL 1.6 BDL 15 Mercury BDL 0.4 BDL 3.3 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL0.058JBDL BDL BDL BDL BDL .067J .064J BDL .015J .085J .073BJ .024J BDL .089BJ BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDLBDL BDL BDL 1 Selenium BDLBDLBDL BDL BDL BDL BDL BDL BDL 9 18 7.4 BDL 6.1 BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.8J BDL 3.7J BDL BDL 6.9BJ 3.5J 4.9J BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.9J BDL BDL BDLBDL BDL 1.6J BDL 1.6J 1.9J 2.1J BDL 20 Silver BDLBDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.6BJ BDL 7.1 2.9BJ BDL 9.8 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.7J BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDLBDL BDL 1.7J 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to December 2020. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOCs = volatile organic compounds; BT = Butanone; CD = carbon disulfide; CB = chlorobenzene; CA = chloroethane; DCB = dichlorobenzene; DCA = dichloroethane; DCE = dichloroethene; MI = methyl iodide bold and shade denotes above NCGQS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDLrk:table:cramhistgw.mw4 MW-5 HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 4/97 9/97 4/98 9/98 4/99 9/99 5/00 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/19 11/19 7/20 12/20 8/21 12/21 8/22 1222 NCGPS Appendix I VOCs Acetone BDL NT BDL NT BDL NT BDL NT NT NT NT BDL BDL BDL BDL BDL BDL NT BDL BDL 2.9J NT NT NT BDL NT BDL NT BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL NT NT NT 5.4J 2.8J 4.5J BDL BDL BDL NT NT NT BDL 6,000 CD BDL NT BDL NT BDL NT BDL NT NT NT NT BDL BDL BDL BDL BDL BDL NT BDL BDL 0.097J NT NT NT BDL NT BDL NT BDL BDL BDL NT BDL BDL BDL BDL BDL BDL BDL NT NT NT BDL BDL BDL BDL BDL BDL NT NT NT BDL 700 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 6.2 1.8J BDL 1.9J 1.3J NT NT NT NT 3 RCRA Metals Arsenic BDL NT BDL NT BDL NT BDL NT NT NT NT BDL BDL BDL BDL BDL BDL NT 14 BDL BDL NT NT NT 9.7J NT 6J NT BDL BDL 4.3BJ NT BDL BDL 6.1BJ BDL BDL BDL BDL NT NT NT BDL 1.7J BDL 2.9 BDL BDL NT NT NT NT 10 Barium 220 NT 320 NT BDL NT BDL NT NT NT NT 42 220 610 32 25 220 NT 3,500 32 1,800 NT NT NT 1,000 NT 13J NT 20J 37 63 NT 49 46 17J 25 18J 22J 14 NT NT NT 24 510 29 430 22 32 NT NT NT NT 700 Cadmium BDL NT BDL NT 1 NT 2 NT NT NT NT BDL BDL BDL BDL BDL 1.8 NT 3.8 BDL 8.9 NT NT NT 14 NT BDL NT BDL 1.8J 0.88J NT 1.6J 2.5 BDL BDL 1J 0.9J 0.34 NT NT NT 0.24J 2.3 0.35J 2.2 0.59 BDL NT NT NT NT 2 Chromium BDL NT 12 NT BDL NT BDL NT NT NT NT BDL 5.7 18 BDL BDL BDL NT 130 BDL 58 NT NT NT 38 NT BDL NT 2.2J 2.9J 3J NT BDL BDL BDL BDL BDL 95 BDL NT NT NT BDL 21 2.5BJ 18 BDL BDL NT NT NT NT 10 Lead BDL NT 17 NT BDL NT BDL NT NT NT NT BDL BDL 7.3 BDL BDL BDL NT 55 BDL 24 NT NT NT 45 NT 2.3J NT BDL BDL 12 NT 29B 7.8J 3.8BJ BDL BDL BDL BDL NT NT NT BDL 12 0.54J 12 BDL 0.26J NT NT NT NT 15 Mercury BDL NT BDL NT BDL NT BDL NT NT NT NT BDL 0.13 BDL BDL BDL BDL NT 0.36 0.13 0.17 NT NT NT .062J NT BDL NT BDL .077J BDL NT BDL BDL BDL .019J BDL .057BJ BDL NT NT NT BDL 0.3 BDL BDL BDL BDL NT NT NT NT 1 Selenium BDL NT BDL NT BDL NT BDL NT NT NT NT 5.8 BDL BDL BDL BDL BDL NT 5.9 BDL BDL NT NT NT BDL NT BDL NT BDL BDL 4.1J NT BDL BDL BDL BDL BDL BDL BDL NT NT NT BDL BDL BDL 2.6J BDL BDL NT NT NT NT 20 Silver BDL NT BDL NT BDL NT BDL NT NT NT NT BDL BDL BDL BDL BDL BDL NT BDL BDL BDL NT NT NT BDL NT BDL NT 0.86BJ BDL BDL NT BDL BDL BDL 0.8J BDL BDL BDL NT NT NT BDL BDL BDL BDL BDL BDL NT NT NT NT 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to 2020. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOCs = volatile organic compounds; CD = carbon disulfide NT = not tested, well dry NA = not applicable bold and shade denotes above NCGQS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL NT = not tested MW-6 HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 4/97 9/97 4/98 9/98 4/99 9/99 5/00 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/19 11/19 7/20 12/20 8/21 12/21 8/22 12/22 NCGPS Appendix I VOCs Acetone BDL BDL BDL BDL BDL BDL BDL 700 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.4J 2J BDL 10J BDL BDL 10J BDL BDL BDL BDL 9.8 BDL BDL BDL BDL BDL BDL 2.4J BDL 3.5J 3J 6.3J 2.5J 2.7J BDL BDL BDL BDL BDL 5.8J BDL 6,000 Benzene 8.2 7.5 8.9 7.9 10 13 9 8 5.1 5.9 5.3 6.5 6.5 5.2 6.7 7.1 5.6 6.8 6.7 6.6 6.8 6.2 6.2 4.7 7 6.2 5.8 7 5.3 2.9 6 2.3 2 3.8 5.5 5.1 3.2 5.2 6.5 6.1 4.8 4.4 4.8 4.6 6.0 5.7 4.2 4.8 5.4 6.2 5.0 4.1 1 BDCM BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.32J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.6 2-BT BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 11 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.5J BDL BDL BDL 2.3J BDL BDL BDL 2.9J BDL BDL 4,000 CD 5.8 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 7.8 BDL BDL BDL BDL BDL BDL BDL 0.67J BDL BDL 0.14J BDL 1.6 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 700 CA BDL BDL BDL BDL 12 15 BDL BDL 12 5.6 8.3 6.5 8.6 7 4.6 4.3 4.6 4.4 4.8 4.4 3.6 3 3.1 3.2 2.4 2.8 3 1.7J 1.7J 0.69J 1.8J 1.3J 1.6J 1.7J 2 BDL 0.71J 1.4J BDL 1.1J 1.5J 1.2J 1.5J 1.2J 0.82J 1.1J 1J 0.79J 0.7J 0.67J0.79J 0.67J 3,000 CB BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL 1.1 1.1 1.2 1.1 1 1 1.1 1.1 1.1 1.5 1 1.2 BDL 1.1 0.79J 1 1.2 1.2 0.91J 1.3 1.4 1.4 1.3 1.3 1.4 1.4 1.5 1.6 1.2 1.6 1.9 2.4 2.7 2.4 50 1,2-DCB BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.56J 0.49J 0.71J 0.73J 0.82J BDL 0.69J 1.2 0.77J 0.85J 0.86J 0.94J 0.64J 0.82J BDL BDL 0.72J 0.94J 0.95J 0.88J 0.97J 1 0.71J 0.9J 0.87J 0.97J 0.8J 0.83J 0.8J 0.88J0.86J 0.78J 20 1,4-DCB 12 13 16 14 19 21 17 15 15 13.7 13.5 15 17 14 14 15 13 18 20 17 19 18 20 21 20 19 20 27 19 21 19 20 16 18 20 19 16 20 20 20 22 21 18 20 20 23 21 20 20 21 22 22 6 1,1-DCA 13 11 11 7.8 12 20 10 11 11 9.8 9 9.4 7.7 11 13 13 9.5 7.3 7.8 6.9 5.8 5.9 3.1 3.4 2.4 2.1 2.6 2.1 1.2 1.2 1 0.92J 1.1 0.99J 1.2 0.89J 0.54J 0.98J 1.3 1.2 0.8J 0.86J 1.4 1 1.3 1.3 1.2 1.2 1 1.1 1.1 0.89J 6 1,2-DCA BDL BDL BDL BDL BDL 5 BDL BDL BDL 2.2 2 1.8 BDL BDL 2.2 2.4 1.7 2.1 2 BDL 1.6 BDL 1.6 1.6 BDL 1.5 BDL 2 1.1 BDL BDL BDL BDL BDL BDL 0.94J 0.77J 0.91J 0.97J BDL 0.89J 0.82J 1 0.74J 0.98J 0.82J 0.64J 0.68J 0.53J 0.73J0.54J BDL 0.4 cis1,2DCE 82 80 74 82 66 98 71 66 66 61.4 66.8 62 54 57 54 64 40 55 60 47 47 50 52 52 54 50 39 67 39 47 57 48 26 33 13 13 6.8 13 8.2 10 4.1 9.2 9.4 BDL 1.2 3 0.45J 0.57J 0.52J 0.42J BDL 0.79J 70 trans1,2DCEBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.36J 0.35J 0.32J BDL 0.27J 0.28J BDL 0.29J 0.22J BDL 0.26J 0.23J 0.23J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 100 1,2-DCP BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.45J BDL 0.28J 0.29J BDL 0.28J 0.25J 0.71J 0.24J 0.23J 0.21J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.6 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 57 82 75 56 73 100 130 110 85H 3 EB BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.31J 0.18J BDL BDL BDL BDL 0.33J BDL BDL BDL BDL BDL BDL BDL BDL 0.46J BDL 0.28J 0.37J 0.41J BDL BDL 0.45J BDL 0.91J 0.47J 0.5J 0.8J 0.84J 1.3 BDL 0.42J 600 2-Hexanone BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.5J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 40 MC BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.21J BDL BDL BDL BDL BDL BDL BDL BDL 0.37J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 5 PCE BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.19J BDL BDL BDL BDL BDL BDL BDL 0.38J BDL 0.13J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.7 Toluene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.5 1.1 BDL BDL BDL BDL BDL BDL BDL 0.57J 0.38J BDL 0.37J 0.6J 0.41J 0.61J BDL 0.36J 1.1 BDL BDL 0.45J BDL 0.4J 0.44J BDL 0.48J 0.56J BDL BDL BDL BDL BDL 3.1 0.77J 2.5 3.8 2.7 2.9 0.95J 0.43J 600 TCE 12 9.8 11 7.1 7 9 5 BDL BDL BDL BDL 1.4 2.6 BDL BDL BDL BDL 1.2 BDL 1 1 0.92J 1.7 0.97J 2.3 1.2 0.66J BDL 0.83J 0.9J 1.5 0.68J BDL 0.48J BDL 0.31J BDL 0.26J 0.5J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3 VC BDL BDL BDL BDL 12 15 14 BDL BDL 5.1 6.3 5.9 6.6 BDL 7.6 5.8 6.2 8.2 6.2 8.1 7.3 0.92J 7 6.2 7.1 7.2 7.8 5.3 5.5 5.2 5.8 4 4.7 11 16 8.3 1.9 6.7 6.2 4.3 3.5 4.4 5.1 4.3 1.1 2.0 BDL 0.58J BDL BDL 0.52J 0.67J 0.03 Xylenes BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.1 BDL BDL BDL BDL BDL BDL BDL BDL 1.1 6.2 0.95J 1.2 BDL 0.35J BDL BDL 0.77J 2.7 0.8J 1 0.42J 0.35J BDL BDL BDL 0.7J 1.1 BDL BDL BDL BDL BDL 3.3 1.9 4.1 7.7 6.4 8.7 3.6 1.8 500 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 52 77 75 63 61 100 120 110 120 3 RCRA Metals Arsenic BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 7 5.3 BDL BDL BDL BDL BDL 7.4 BDL BDL 5J BDL 8.2J 11B 10B 10.0 6.3BJ 7.5J 4.9BJ BDL 3.4J 5.2J 3.0 1.6 2.1 1.8J BDL 2.7 1.7J BDL 1.4J 1.4J 2.2 4.8 7.6 2.3 10 Barium 810 1500 1200 1800 1600 950 830 800 660 845 745 720 1200 1100 1400 910 1100 1100 1100 1100 1300 1200 1200 1100 1200 1300 1400 1200 1100 1500 1400 2000 1400 1200 1600 1400 1600 1900 1600 2100 2100 1900 2200 1800 2900 2500 3000 4200 4100 4000 4600 6200 700 Cadmium BDL 16 8 21 12 4 4 4 BDL BDL BDL BDL 2.6 BDL 3 BDL BDL BDL BDL BDL BDL 1.2J 1J 1.2J BDL 0.73J BDL 1.2J BDL 3.9 0.72J 4.6 2 BDL BDL 0.8J 0.6J 1.8J 0.65 0.72 0.5 0.43J 0.71 BDL 0.95 0.35J 0.56 0.57 0.54 0.29J 5 BDL 2 Chromium BDL 15 4 7.8 28 BDL BDL BDL BDL 6 8 BDL 8.1 6.6 21 BDL BDL BDL BDL BDL 3J 2.5J BDL BDL 2.2J 2.9J BDL BDL BDL BDL BDL 9.1B BDL BDL BDL BDL 1.2J BDL BDL 0.95J BDL 1.4 BDL 1.3J BDL BDL BDL BDL BDL BDL 18 BDL 10 Lead 7 42 29 40 38 BDL BDL BDL BDL BDL BDL 7.6 6.8 6.2 16 BDL BDL BDL BDL BDL BDL BDL BDL 6.4 6.4J 4.8J 5.8J BDL 7.3BJ 4.2J 10 12 35B 5.5J BDL 4.8J BDL BDL 0.28J 0.19J BDL BDL BDL 0.27J BDL BDL BDL BDL BDL BDL 5.6 BDL 15 Mercury 1.1 1.3 0.8 3.2 1.5 0.4 BDL BDL BDL BDL BDL BDL BDL 0.13 0.12 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.06J BDL 0.099J BDL 0.08J0.055J BDL 0.14B BDL BDL.071BJ BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 Selenium BDL BDL BDL BDL BDL BDL BDL BDL BDL 9 14 7.7 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.9J BDL BDL BDL BDL 14B BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.5J BDL BDL BDL BDL BDL 3.1J 2.3J 1.6J 2J 4.2J 2.2J 20 Silver BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL0.76BJBDL 4J 1.5BJ BDL 11 BDL BDL BDL BDL BDL BDL BDL BDL BDL 2J 2.1J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to 2020. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOCs = volatile organic compounds BT = butanone; BDM = bromodichloromethane; CD = carbon disulfide; CA = chloroethane; CB = chlorobenzene; DCA = dichloroethane; DCE = dichloroethene; DCB = dichlorobenzene; DCP = dichloropropane; EB = ethylbenzene; MC =methylene chloride; PCE = tetrachloroethene; TCE = trichloroethene; VC = vinyl chloride bold and shade denotes above NCGQS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL MW-6D HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/19 11/19 7/20 12/20 8/21 12/21 8/22 12/22 NCGPS Appendix I VOCs Acetone 620 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.8J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.2J 2.7J 7.4J 2.9J 2.5J BDL BDL BDL BDL BDL 7J BDL 6,000 Benzene 9 BDL BDL BDL BDL BDL BDL BDL BDL BDL 3 3.7 3.6 4.7 5 4.1 5.2 3.3 4.5 5.3 6.5 4.9 4.1 4.9 4.1 4.4 4.1 4.8 3.8 3.3 4.6 4.8 5.2 5.1 4.4 5.7 5.2 5.5 5.3 5.3 5.3 2.3 5.6 5.1 2.5 1 Bromoform BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.39J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4 2-Butanone BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.1J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6J BDL BDL 4,000 Carbon Disulfide BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.5J BDL BDL 0.31J BDL 1.6 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 700 Chlorobenzene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.62J 0.76J 0.77J 1 0.67J 1 1.1 1.5 1.3 1.3 BDL 0.69J 1.6 1.7 1.9 1.5 1.4 1.7 1.9 1.8 1.8 1.6 1.9 1.9 1.9 2.2 2.2 2 0.97J 2.3 2.6 1.9 50 Chlorethane BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.55J BDL BDL 1.2J BDL 1.1J 1J 1.2J BDL BDL 1.1J BDL 0.96J 1.1J 0.96J BDL BDL 1.1J BDL BDL 0.88J 0.63J 0.94J 0.8J 0.58J 0.95J 0.95J 0.95J BDL 0.83J 0.83J BDL 3,000 1,2-Dichlorobenzene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.41J 0.48J 0.48J 0.66J 0.41J BDL 0.78J 0.99J 0.87J 0.85J 0.78J 0.97J 1 0.96J 1.2 0.94J 1 BDL 1.3 1.1 1.2 1.1 1.1 1.2 1.1 1.2 1.2 1 0.54J 1.1 1.1 0.83J 20 1,4-Dichlorobenzene 17 BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.4 3.7 3.5 4.8 6.3 6.6 9.3 6.4 7.5 11 13 12 11 12 12 12 13 15 12 12 14 15 15 15 14 15 16 16 17 17 14 9.9 16 17 12 6 1,1-Dichloroethane 10 BDL 2.3 2.6 2.9 2.5 BDL 3 3.3 3 9.2 11 14 16 18 16 13 16 11 10 16 9.7 8 9.6 5.3 5.7 6.9 6.3 4.7 3.8 5.3 4.4 4.3 3.8 3.8 4.5 3.5 3.7 3.5 3.5 2.6 1.8 2.2 1.8 1.1 6 1,2-Dichloroethane BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.8J BDL BDL BDL BDL BDL BDL BDL 1.1 1.1 BDL BDL 1 0.97J BDL BDL 0.81J 0.96J BDL BDL BDL 0.97J 1.2 0.92J 0.9J 0.78J 0.78J 0.74J 0.57J 0.64J 0.6J 0.55J 0.4 1,1-Dichloroethene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.42J BDL 0.32J BDL BDL 0.23J BDL 0.97J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 7 cis-1,2-Dichloroethene BDL BDL BDL BDL 1.7 2.7 BDL 2.1 1.7 2.6 23 31 32 44 55 55 64 52 55 62 75 51 39 42 28 18 11 7.8 3.8 2.2 2.1 1.5 BDL BDL 1 0.46J BDL BDL 0.54J 0.54J BDL BDL BDL BDL BDL 70 trans-1,2-Dichloroethene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.3J 0.33J BDL 0.32J 0.28J BDL 0.31J 0.3J 0.26J 0.21J 0.29J BDL 0.24J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 100 1,2-Dichloropropane BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.77J BDL 0.69J 0.69J BDL 0.67J 0.68J 1.1 0.64J 0.59J 0.51J 0.54J 0.67J 0.48J 0.68J 0.5J 0.42J 0.59J 0.47J BDL BDL BDL 0.46J 0.4J BDL BDL BDL BDL BDL BDL BDL BDL 0.6 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 130 170 190 190 260 140 320 340 260H 3 Ethylbenzene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.42J 0.59J 0.52J 0.74J 0.48J 0.53J 0.46J 0.41J 0.46J 0.46J 0.62J BDL 0.65J 0.87J 0.53J 600 4-Methyl-2-Pentanone BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.75J 0.33J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 100 Tetrachloroethene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.3 2.4 BDL 0.94J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.61J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.7 Toluene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.4J 0.29J BDL BDL BDL BDL BDL BDL 0.38J 0.39J 0.38J 0.49J BDL 0.4J 0.58J 0.47J BDL 0.51J 0.37J BDL BDL BDL BDL BDL BDL 0.54J 0.54J 3.6 0.57J 4.6 1.8 0.43J 600 Trichloroethene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2 2.6 3.1 4.4 3.6 2.8 1.9 1 1.3 0.79J BDL 0.32J 0.25J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3 Vinyl Chloride BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.1 BDL 2.2 2.6 2.7 3.4 4.4 2.6 5.6 6 7.1 5.8 8.6 12 8.7 10 6.4 5 BDL 0.6J 1.4 0.87J 0.68J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.03 Xylenes BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.53J 0.59J 0.72J 0.81J BDL 0.61J BDL BDL 1.2 0.91J 1 1.3 1.2 0.7J 0.84J 0.76J 0.54J 1.3 1.2 1.5 1.4 1.1 1.2 1.2 0.4J 1.6 1.6 3.1 1.1 4.3 4.8 2.7 500 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 150 170 210 210 240 160 300 440 330S 3 RCRA Metals Arsenic BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 9.6J 5.4BJ 13B BDL 6.3BJ 5.9J BDL 4.2J 2.5J BDL 1 2.2 2.6 1.7J 1.3J 3.4 2 3.1 3.1 1.8J 2.3 2.8 3.4 2.5 10 Barium BDL BDL 58 33 30 40 45 49 42 48 100 110 140 140 140 150 160 190 170 12J 250 230 38 200 130 120 250 150 18J 19J 300 160 340 150 74 280 380 130 420 420 16 170 130 390 150 700 Cadmium 3 BDL BDL BDL BDL BDL BDL BDL BDL 1.5 1 BDL BDL BDL 1.3J 1.6J 0.98J 0.74J 0.65J BDL BDL BDL BDL 0.69J 0.77J 1.5J 2.1 4.3BJ BDL 1J 1.5J 0.3 0.72 0.3J 0.54 0.16J 0.38J 0.2J 0.3J 0.3J 0.26J 0.14J 0.14J BDL BDL 2 Chromium BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.072J 3J 2.4J BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.3J BDL BDL 2.1J 2.3J BDL 2.2J 0.74J BDL 1.3BJ BDL BDL 1.7J 1.6J BDL BDL BDL 10 Lead 20 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4.1 6.6J 3.2J 3.7J BDL BDL BDL 11 BDL 34B 6.1J BDL BDL BDL BDL 0.28J 2.5 BDL 0.54J BDL BDL BDL 0.58J 0.58J BDL 0.31J BDL BDL BDL 15 Mercury BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.072J BDL BDL BDL BDL BDL 0.058J BDL BDL BDL BDL 0.037BJ BDL BDL .054BJ BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 Selenium BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.1J 2.7BJ BDL BDL BDL BDL BDL BDL 6.9BJ BDL 7.5J 3.1J BDL BDL BDL 3.7J BDL BDL BDL BDL 2.5J BDL BDL BDL BDL BDL BDL 1.9J BDL 1.7J 2.9J 1.9J 20 Silver BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.4BJ 0.87J 1.1J BDL BDL 7.2 8.2 BDL BDL BDL BDL BDL BDL BDL BDL 0.7J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to 2020. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOCs = volatile organic compounds bold and shade denotes above NCGPS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL MW-7 HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 4/97 9/97 4/98 9/98 4/99 9/99 NCGPS Appendix I VOC's Carbon Disulfide 21 8.3 BDL BDL BDL BDL 700 Chloroethane BDL BDL BDL BDL 11 BDL 2,800 1,4-Dichlorobenzene BDL BDL 5.5 BDL 6 7 75 1,1-Dichloroethane 28 24 26 9.6 26 41 700 1,2-Dichloroethane 5 7.5 BDL 5.3 BDL 12 0.38 cis-1,2-Dichloroethene 22 21 18 12 20 34 70 Methylene Chloride BDL BDL BDL 6.1 BDL BDL 5 RCRA Metals Barium 460 530 480 580 500 640 2,000 Cadmium BDL BDL BDL BDL 2 3 5 Chromium BDL 3 BDL BDL BDL 13 50 Lead BDL 9 8 BDL BDL BDL 15 Mercury BDL BDL BDL 3.4 BDL BDL 1.1 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals. BDL = below detection limit NCGPS = North Carolina Groundwater Protection Standard VOC's = volatile organic compounds bold and shade denotes above NCGPS data presented in micrograms per liter (ug/l) rk:table:cramhistgw.mw7 MW-7A HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/14 5/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/19 11/19 7/20 12/208/21 12/21 8/2212/22NCGPS Appendix I VOCs Acetone 96 BDL BDL BDL BDL 120 1,600 BDL BDL BDL BDL BDL BDL 5.1J BDL BDL BDL BDL BDL 7.2J 13J BDL BDL BDL BDL BDL BDL BDL 52 21 5.1J 3.3J BDL 2J BDL 5.4J BDL 660H BDL 520 BDL300S BDL BDL BDL 6,000 Benzene BDL 5.4 2.8 BDL BDL 7.5 7.7 7.6 9.1 6 7.6 6.9 6.5 6.7 4.7 1.3 2.1 6 6.7 5.1 7.9 2.7 3.8 6.2 3.7 4.3 6.7 BDL 7 3.3 6 5.6 7.2 6 5.9 5.3 6.1 5 7.5 7.1 7 7.6 7.6 5.5 4.1 1 Bromoform BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.4J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4 2-Butanone BDL BDL BDL BDL BDL 140 2,000 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1,200H BDL 800 BDL400S 4.2J BDL BDL 4,000 Carbon Disulfide BDL BDL BDL BDL BDL 17 BDL BDL BDL BDL BDL BDL BDL 0.36J BDL BDL 1 BDL 1.6 BDL BDL BDL BDL BDL 0.42J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 700 Chloroethane BDL BDL 3.5 4 BDL BDL 3.9 2.6 2 BDL 2.4 BDL BDL 0.57J BDL 1.2J 1.1J BDL 0.96J 0.63J 0.64J BDL BDL 0.69J BDL BDL BDL BDL BDL BDL 1J BDL BDL BDL BDL BDL BDL BDL 0.53J 0.43J BDL0.46J0.46JBDL BDL 3,000 Chlorobenzene BDL BDL BDL BDL 2.3 3.5 BDL 4 6.6 3.9 4.4 4.1 4.7 4.6 3.2 1.4 1.6 3.9 4.4 3.5 5.1 2.3 3 5 3.7 4.3 8.6 BDL 8.6 4.8 6.2 6.3 7.8 8.2 7.8 6.7 8.1 BDL 9.7 8.9 10 9.6 9.3 7.8 6.9 50 Chloroform BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.94J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 70 1,2-Dichlorobenzene BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.36J 0.3J BDL BDL BDL BDL 0.33J BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.4J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 1,4-Dichlorobenzene 6 11 6.4 4.1 9.6 13 14 14 17 13 16 16 14 13 10 5.7 6.5 12 13 14 17 9.5 9.4 12 9.9 10 15 BDL 15 10 12 12 15 13 13 10 12 12 13 12 12 12 12 11 10 6 1,1-Dichloroethane 13 5.2 10.6 7.8 3.6 BDL BDL BDL BDL BDL BDL BDL BDL 0.24J 1.7 1.3 1.2 BDL 0.15J 0.21J 0.36J 0.49J 0.31J BDL 0.24J 0.15J 0.13J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6 1,2-Dichloroethane 6 BDL 2.9 2.5 1.3 2.7 4.5 1.6 BDL BDL BDL BDL BDL 0.68J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.63J BDL BDL BDL BDL BDL BDL BDL 0.4 cis-1,2-Dichloroethene 9 BDL 7.6 6.1 3.4 BDL BDL BDL BDL BDL BDL BDL BDL 0.45J 1.6 1.6 BDL BDL 0.53J 0.31J 0.9J 0.92J 0.93J 0.24J 0.7J 0.46J BDL BDL 0.23J BDL 0.39J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 70 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 14J 230 93 320 85 69J 120 120 110H 3 Ethylbenzene 15 7.3 BDL BDL 13 22 48 31 32 8 BDL BDL BDL BDL BDL BDL 0.34J BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.3J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL0.46J BDL BDL BDL 600 2-Hexanone BDL BDL BDL BDL BDL BDL 85 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6J BDL 8.9J BDL 3.7J BDL BDL BDL 40 4-Methyl-2-pentanone BDL BDL BDL BDL BDL 15 690 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.5J 2.5J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.3J BDL BDL BDL BDL BDL 73 BDL 130 BDL 31 BDL BDL BDL 100 Toluene BDL BDL BDL BDL 1.4 2.3 41 3.2 1.8 1 BDL BDL BDL 0.65J 0.71J 0.33J 0.5J BDL 0.43J 0.56J BDL 0.84J 0.5J BDL 0.43J BDL 0.56J BDL 0.48J BDL 0.55J 0.39J BDL BDL 0.6J BDL BDL 4.1 1.9 4.6 1.3 1.5 8 0.68J0.83J 600 Vinyl Chloride BDL BDL BDL BDL BDL 2.1 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.29J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.030 Xylenes 23 BDL BDL BDL 23 11 110 44 46 8.6 8.4 6.1 6.9 2.1 0.42J BDL 0.77J BDL 3.9 BDL 4.9 0.83J 0.51J 0.84J BDL BDL 0.47J BDL BDL BDL 4.9 2.2 BDL BDL BDL BDL BDL 12 3.4 21 5.2 6.9 3.1 0.57J 1 500 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT 31 310 110 280 83 120 110 110 130 3 RCRA Metals Arsenic 10 BDL BDL BDL BDL BDL BDL 14 BDL BDL 5 BDL BDL BDL 16 32 31 10 BDL 5.9J BDL 25 19B 4.8BJ 20 16B 5.6J 9.2BJ BDL BDL 3.1J 1 1.5 1.9J 1.9J 1.7J 4.2 1.7J 1.9J 2.2 2.1 2 1.5J 2.5 3.9 10 Barium BDL BDL 312 252 300 410 440 420 390 390 420 420 420 420 420 430 480 460 460 580 430 550 450 420 520 500 380 480 440 460 450 500 440 410 430 420 450 650 480 670 460 540 460 500 530 700 Cadmium 3 BDL BDL 7 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.2J 0.85J BDL 3.2 0.97J BDL BDL BDL BDL 0.69J 2.1BJ 1.8J BDL BDL 0.7J BDL 1.1J 0.34 0.86 BDL 0.36J 0.74 0.16J 0.21J 1.1 0.13J0.18J BDL 0.8 BDL 0.29J 2 Chromium 19 BDL BDL BDL BDL BDL BDL 6.7 BDL BDL BDL BDL BDL 3.5J 2.8J BDL BDL BDL 3.5J BDL BDL BDL BDL BDL BDL 2.7J BDL BDL BDL 1J BDL 1.5J BDL BDL BDL BDL BDL BDL 1.3J BDL BDL BDL BDL BDL BDL 10 Lead 22 BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL 3.2 BDL BDL BDL BDL 9.7 11 3.8J 8.1J BDL BDL BDL 5.3J BDL 40B 7.2J BDL 4.5J BDL BDL 0.44J 0.18J BDL BDL 0.69J BDL BDL 1.3 1.2 BDL BDL 0.36JBDL BDL 15 Mercury BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.055J BDL BDL BDL BDL BDL 0.7J 0.068J BDL BDL BDL .057BJ BDL BDL .053BJ BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 Selenium BDL BDL BDL 6 9.6 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 5.8 BDL BDL BDL BDL 11B BDL BDL BDL BDL BDL BDL BDL 8.6J 9.7J BDL BDL BDL BDL BDL BDL BDL BDL 3J BDL BDL BDL 1.8J 1.4J 20 Silver BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.4BJ BDL BDL 1.6BJ BDL 7.9 BDL BDL BDL BDL 0.46J BDL BDL BDL BDL 0.5J 2.6J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to 2020. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOCs = volatile organic compounds bold and shade denotes above NCGPS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL H= out of holding time rk:table:cramhistgw.mw7A MW-8 HISTORICAL GROUNDWATER ANALYTICAL RESULTS GASTON COUNTY - CLOSED CRAMERTON LANDFILL GASTON COUNTY, NORTH CAROLINA Date 4/97 9/97 4/98 9/98 4/99 9/99 5/00 9/00 5/01 12/01 7/02 12/02 5/03 11/03 5/04 11/04 4/05 11/05 5/06 11/06 6/07 11/07 6/08 11/08 6/09 11/09 4/10 11/10 5/11 11/11 5/12 12/12 5/13 12/13 5/14 12/145/15 12/15 5/16 11/16 7/17 11/17 5/18 11/18 5/19 11/19 7/20 12/20 8/21 12/21 8/22 12/22 NCGPS Appendix I VOCs Acetone BDL BDL BDL BDL BDL BDL BDL 86 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 2.2J BDL 4.1J BDL BDL BDL BDL BDL BDL BDL BDL BDL 6,000 Bromoform BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.38J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 4 1,1-DCA BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.23J0.63J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 6 PCE BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.15J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.3 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 0.7 EPA 8260 (SIM) 1,4-Dioxane NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT NT BDL BDL BDL NT NT NT NT NT BDL 3 RCRA Metals Arsenic BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.8BJ 4.1BJ9.2BJ BDL BDL BDL 7.2BJ BDL BDL BDL BDL 0.3J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 10 Barium 180 410 520 720 BDL BDL BDL BDLBDL 128 282 58 150 130 660 490 220 360 250 110 220 46 47 34 42 43 37 39 40 35 38 34 48 150 38 35 35 36 44 55 27 29 25 97 29 270 28 27 27 27 33 28 700 Cadmium BDL BDL 20 BDL 1 2 2 5 BDL BDL BDL BDL BDL BDL 3.4 BDL BDL 1.8 BDL BDL 0.81J 1.1J 2 BDL BDL BDL BDL BDL BDL BDL 0.88J BDL BDL BDL BDL BDL BDL BDL 0.47 0.48 0.16J 0.26J 0.15J BDL BDL 0.18J 0.16J BDL 0.27J BDL 0.19J BDL 2 Chromium BDL 19 16 26 BDL 14 BDL 22 BDL 6 21 BDL BDL 5.6 51 16 7.3 21 12 6.2 16 BDL BDL BDL BDL BDL BDL BDL 2.3J BDL BDL BDL BDL 9.4 BDL BDL BDL 1.3J 1.3J 1.6J BDL BDL BDL 5.4 1.6BJ 14 BDL BDL BDL BDL BDL BDL 10 Lead 7 13 16 19 BDL BDL BDL 12 BDL BDL 4 BDL BDL BDL 11 11 3.7 3.1 BDL BDL 2.8J BDL BDL 3 8J 2.3J 9.7J BDL 3BJ BDL 11 2J 41B 7.4J 2.2BJ 3.3J 3.3J BDL 0.3J 0.45J BDL BDL BDL BDL BDL 6.9 BDL BDL BDL BDL BDL BDL 15 Mercury BDL BDL BDL 2 BDL BDL BDL BDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL .054J BDL BDL BDL BDL BDL .079J BDL BDL .027J .028J .022BJBDL BDL .053BJ BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1 Selenium BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 3.1J BDL BDL BDL BDL 3.8BJ BDL 4.9J 3.5J 4.9J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 Silver BDL BDL BDL BDL BDL BDL BDL BDLBDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 1.3BJ BDL BDL BDL BDL 0.53J BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL 20 Notes: Groundwater samples collected on above listed dates and analyzed for Appendix I VOC's and RCRA metals; and 1-4-dioxane by EPA Method 8260 (select ion monitoring (SIM)) November 2018 to 2019. BDL = below detection limit; NT = not tested NCGPS = North Carolina Groundwater Protection Standard VOCs = volatile organic compounds; DCA = dichloroethane; PCE = tetrachloroethene bold and shade denotes above NCGPS data presented in micrograms per liter (ug/l) B = detected in method blank J = estimated result <PQL and >=MDL rk:table:cramhistgw.mw8