Loading...
HomeMy WebLinkAboutMO-8736_40256_CA_CAPR_20240102 CORRECTIVE ACTION MONITORING REPORT The Pantry #3957 6441 Wilkinson Blvd Belmont, Gaston County, North Carolina 28012 Facility ID No. 0-036103 NCDEQ Incident No. 40256 ATC Project No. PAN3957019 CORRECTIVE ACTION MONITORING REPORT The Pantry #3957 6441 Wilkinson Blvd Belmont, Gaston County, North Carolina 28012 Facility ID No. 0-036103 NCDEQ Incident No. 40256 NCDEQ Priority Ranking: Intermediate (I130D) ATC Project No. PAN3957019 Prepared By: Submitted To: North Carolina Department of Environmental Quality Noelle A. France, P.G. Mooresville Regional Office Senior Project Manager Division of Waste Management - UST Section 610 East Center Avenue, Suite 301 Mooresville, North Carolina 28115 ___________________________ Submitted By: _____________________________ Michael D. Shaw, P.G. NC Licensed Geologist #1338 ATC Associates of North Carolina, P.C. 7606 Whitehall Executive Center Drive Suite 800 Charlotte, North Carolina 28273 Phone: (704) 529-3200 Fax: (704) 529-3272 On Behalf Of: Circle K Stores, Inc. 1100 Situs Court Raleigh, North Carolina 27606 January 2, 2024 Site Identification: Facility I.D.: 0-036103 UST Incident Number: 40256 Site Risk: I130D Site Name: The Pantry #3957 Site Street Address: 6441 Wilkinson Blvd City/Town: Belmont Zip Code: 28012 County: Gaston Description of Geographical Data Point: UST Basin Latitude: 35. 252845° N Longitude: 81. 04381° W Location Method: Google Earth UST Owner/Operator: Circle K Stores, Inc. Address: 1100 Situs Court, Raleigh, North Carolina 27606 Phone: (919) 774-6700 Property Owner: National Retail Properties LP Address: 450 S. Orange Ave, Ste 900, Orlando, Florida 32801 Phone: (407) 839-0034 Property Occupant: Circle K Stores, Inc. Address: 1100 Situs Court, Raleigh, North Carolina 27606 Phone: (919) 774-6700 Consultant: ATC Associates of North Carolina, P.C. Address: 7606 Whitehall Executive Center Dr., Charlotte, NC 28273 Phone: (704) 529-3200 Analytical Laboratory: Waypoint Analytical State Certification No: 37735 / 402 Address: 449 Springbrook Road, Charlotte, NC 28217 Phone: (704) 529-6364 Information about Release Date Discovered: September 3, 2013 Estimated Quantity of Release:_ Unknown Cause of Release: Physical/mechanical UST system damage Source of Release (e.g., Piping/UST): Racing fuel UST Sizes and contents of UST system(s) from which the release occurred): 4,000-gallon racing fuel UST Information about the Monitoring Report Dates of MMPE Event: NA Date of Groundwater Monitoring Event: December 4 and 5, 2023 I, Michael D. Shaw, a Licensed Geologist for ATC Associates of North Carolina, P.C. do certify that the information contained in this report is correct and accurate to the best of my knowledge. ATC Associates of North Carolina, P.C. is licensed to practice geology and engineering in North Carolina. The certification number issued by the North Carolina Board for Licensing of Geologists is C-274. The certification number issued by the North Carolina Board of Examiners for Engineers and Surveyors is C-1598. 7606 Whitehall Executive Center Drive, Suite 800 Charlotte, NC 28273 Tel: 704-529-3200 Fax: 704-529-3272 www.atcgroupservices.com N.C. Engineering License No. C-1598 January 2, 2024 Mr. Brad Newton, L.G. North Carolina Department of Environmental Quality Mooresville Regional Office Division of Waste Management - UST Section 610 East Center Avenue, Suite 301 Mooresville, North Carolina 28115 RE: Corrective Action Monitoring Report The Pantry #3957 6441 Wilkinson Blvd Belmont, Gaston County, North Carolina 28012 Facility ID No. 0-036103 NCDEQ Incident No. 40256 NCDEQ Priority Ranking: Intermediate (I130D) ATC Project No. PAN3957019 Dear Mr. Newton: ATC Associates of North Carolina, P.C., on behalf of Circle K Stores, Inc., is submitting the enclosed Corrective Action Monitoring Report for The Pantry #3957. This report includes information pertaining field activities conducted at the site from May through June 2023. If you have any questions or require additional information, please contact our office at (704) 529-3200. Sincerely, ATC Associates of North Carolina, P.C. Noelle France, P.G. Michael D. Shaw, P.G. Senior Project Manager Senior Program Manager cc: Mr. Alan Cubberley – Circle K Stores, Inc. TABLE OF CONTENTS 1.0 EXECUTIVE SUMMARY ................................................................................................. 1 2.0 SITE INFORMATION ....................................................................................................... 2 2.1 Site Description ................................................................................................................ 2 2.2 Site History ....................................................................................................................... 2 2.3 Site Vicinity ....................................................................................................................... 5 2.4 Receptor Survey .............................................................................................................. 5 4.0 GROUNDWATER MONITORING .................................................................................... 5 5.0 CONCLUSIONS AND RECOMENDATIONS ................................................................... 6 7.0 REPORT LIMITATIONS .................................................................................................. 7 TABLES Table B-1 Site History – UST System and Other Release Information Table B-2 Site History – UST Owner/Operator and Other Responsible Party Information Table B-4 Summary of Groundwater Sampling Results Table B-4B Historical Summary of Groundwater Sampling Results Table B-6 Property Owners/Occupants Table B-7 Monitoring Well Construction Information FIGURES Figure 1 Site Topographic Map Figure 2 Site Map Figure 3 Groundwater Elevation Map Figure 4 Groundwater Quality Map APPENDICES Appendix A Laboratory Analytical Report The Pantry #3957 January 2, 2023 Corrective Action Monitoring Report Page 1 1.0 EXECUTIVE SUMMARY ATC Associates of North Carolina, P.C. (ATC), on behalf of Circle K Stores, Inc. (Circle K), has prepared a Corrective Action Monitoring Report for The Pantry #3957, located in Belmont, Gaston County, North Carolina. This report summarizes field activities conducted December 4 and 5, 2023 in accordance with Pre-Approved Task Authorization (PATA) #40256-19, as approved November 16, 2023. Based on historical assessments, light non-aqueous phase liquid (LNAPL) and dissolved groundwater concentrations above Gross Contamination Levels (GCLs) have been identified on-site. A receptor survey conducted during Phase I Limited Site Assessment (LSA) activities did not identify water supply wells, surface water bodies, or other receptors within 1,500 feet of the site. The site is ranked as an intermediate risk due to dissolved concentrations above GCLs.  Light Non-Aqueous Phase Liquid (LNAPL) was detected in monitoring well MW-6 (0.02 ft) during the site activities.  Dissolved phase petroleum constituents were not detected above GCL Standards in the monitoring wells.  Dissolved phase petroleum constituents were detected above 2L Standards in each of the monitoring wells sampled with the exception of AS-2 and DMW-1.  Groundwater is estimated to flow generally to the south. In general, VOC concentrations at the site appear to be generally stable or decreasing apart from MW-1 and MW-10. VOC concentrations in MW-1 have increased slightly since the previous sampling event. Constituent concentrations in MW-10 have increased since the June 2023 sampling event. VOCs are no longer present exceeding GCLs. The site and surrounding areas are supplied water by the City of Belmont. Private and public water supply wells were not identified within 1,500 feet of the subject site. Surface water bodies were not observed within 1,500 feet of the release area. ATC recommends an MMPE/AS event targeting MW-6 and MW-10, to remove LNAPL from MW-6 and address the increasing constituent concentrations in MW-10. The Pantry #3957 January 2, 2023 Corrective Action Monitoring Report Page 2 2.0 SITE INFORMATION 2.1 Site Description The Pantry #3957 site is located at 6441 Wilkinson Boulevard in Belmont, Gaston County, North Carolina. The site currently operates as a Kangaroo Express/Marathon with retail fuel and convenience store sales. A United States Geological Survey (USGS) topographic map that shows topographic contours, site location, buildings, and adjacent roads in the site vicinity is included as Figure 1. A site map depicting monitoring well locations and other site features is included as Figure 2. There are currently two compartmentalized USTs, installed in May 2001, on site. One UST contains 20,000 gallons of regular gasoline and 12,000 gallons of premium gasoline, and the second UST contains 4,000 gallons of diesel fuel and 4,000 gallons of kerosene. The second UST had a third compartment, which formerly held 4,000 gallons of racing fuel, but was closed in place on January 8, 2016. UST system and owner/operator information are provided in Tables B-1 and B-2. The site is developed with a single-story convenience store building, a car wash, multiple USTs, and fuel dispensers associated with the USTs. Surface cover at the site consists of asphalt and concrete in the fueling and driveway areas. The surface cover on the east portion of the property is landscaped grass and shrubs. The immediate site vicinity is mostly developed with commercial properties and some residences located to the northwest. The site and surrounding areas are supplied water by the City of Belmont. Private and public water supply wells were not identified within 1,500 feet of the subject site. Surface water bodies were not observed within 1,500 feet of the release area. Surficial soils at the site consist mainly of silty clay and sandy silt, undrerlain Free by saprolite and partially weathered rock. During earlier site assessment activities, auger refusal was encountered at depths ranging from 27 feet to 31 ft-bgs on the north side of the site, but bedrock had not been observed to a termination depth of 50 ft-bgs. However, air-rotary drilling activities conducted in October 2021 encountered competent rock at 33 and 41 ft-bgs. Measured depths to water in shallow site wells ranged from approximately 23.73 feet to 22.55 feet below top-of-casing (TOC) during the December 2023 sampling event. 2.2 Site History In April 1999, a Phase I/II Environmental Site Assessment (ESA) was conducted by Excel Environmental Associates, PLLC (Excel) at the subject site, which operated as McKenney Jeep- Eagle. Soil and groundwater analytical results indicated elevated levels of hydrocarbon constituents and incident number 21659 was issued. Additional assessment completed in July 1999 defined the extent of groundwater impact and identified groundwater concentrations above GCLs. An interim soil vapor extraction and air sparge remediation system was installed in August 1999. A Comprehensive Site Assessment (CSA) Report completed by Excel in April 2000 indicated reduced soil and groundwater contaminant concentrations, and the NCDEQ issued a No Further Action status for the incident. The Pantry #3957 January 2, 2023 Corrective Action Monitoring Report Page 3 The Pantry, Inc. contracted ATC to conduct a site check in August 2013, for the on-site racing fuel UST. Concentrations of volatile organic compounds (VOCs) were detected in the soil samples above soil-to-groundwater, but below residential, MSCCs. Concentrations of VOCs and volatile petroleum hydrocarbons (VPH) were detected above 2L Standards in the groundwater sample. The concentration of benzene exceeded the GCL. The results of the site check were reported to the NCDEQ on and incident number 40256 was issued. Phase I Limited Site Assessment (LSA) and Comprehensive Site Assessment (CSA) activities conducted in correlation with incident number 40256 delineated the extents of free-phase product, soil impact, and dissolved groundwater contamination. Impact appeared to be confined to the subject site. MMPE technology was the chosen corrective action for recovering free product and dissolved contamination for Incident Number 40256. Free product has historically been identified at the site in wells MW-3, MW-4, MW-5, MW-6, and MW-8, with a maximum thickness of approximately 2.50 feet. An MMPE event and two groundwater monitoring events (one prior to the MMPE event, and one subsequent) were conducted at the site in October and November 2018. The MMPE event was conducted at the site in October/November 2018, utilizing groundwater monitoring wells MW-1, MW-4, and MW-10 as target extraction wells. Groundwater samples were collected from target extraction wells prior to the MMPE event. MTBE was detected in exceedance of GCLs in monitoring well MW-10 prior to the MMPE event. VOCs were not detected above GCLs in the groundwater samples collected after the MMPE event. ATC conducted a groundwater sampling event in August 2019. Analytical results from the August 2019 sampling event indicated MTBE was detected in exceedance of GCLs in monitoring well MW-10. In April 2020, ATC conducted a MMPE event and subsequent groundwater monitoring event. Prior to the MMPE event, the groundwater sample collected from monitoring well MW-10 contained concentrations of benzene and MTBE over GCLs. The MMPE event conducted in April 2020, recovered 4,973 gallons of petroleum-impact water, and approximately 108.62 gallons of product recovered as vapor. VOCs were detected above 2L Standards in each of the monitoring wells sampled, but none exceeded GCLs. In October 2020, ATC completed a Limited Site Check, in response to spill bucket failures associated with the diesel and regular unleaded UST spill buckets. The laboratory report for the collected soil samples did not indicate the detection of TPH-GRO or TPH-DRO during sampling activities and no additional assessment activities were recommended. ATC conducted a groundwater sampling event in November 2020. Analytical results indicated MW-10 contained benzene and MTBE at concentrations exceeding GCLs. ATC recommended the installation of two Air-Sparge wells, to enhance VOC recovery during MMPE events. In March and April 2021, ATC conducted an MMPE event and subsequent groundwater monitoring event. The MMPE event recovered approximately 9,992 gallons of petroleum The Pantry #3957 January 2, 2023 Corrective Action Monitoring Report Page 4 impacted groundwater, and 137.35 gallons of VOCs as vapor. Analytical results indicated monitoring well MW-10 contained concentrations of benzene and MTBE exceeding GCLs. Ethanol was detected in monitoring well MW-6, which had not been detected above the laboratory method detection limit during prior sampling events. ATC recommended confirmation sampling of select wells, and to include laboratory analysis for low levels of ethanol. On October 29, 2021, ATC installed air sparge wells AS-1 and AS-2 and conducted an air sparge enhanced mobile multi-phase extraction (AS/MMPE) event from November 1-5, 2021. Calculated effluent airflow rates and the vapor concentration readings from the vacuum truck indicated that an estimated 1,319.87 pounds (244.87 equivalent gallons) of petroleum hydrocarbons were recovered as vapor during the MMPE event. The MMPE event generated approximately 5,653 gallons of petroleum impacted groundwater. A subsequent groundwater monitoring event was completed on December 1, 2021. ATC collected groundwater samples from ten monitoring wells (MW-1, MW-4 through MW-6, MW-8, MW-10, MW-12, MW-14, AS-1, and AS-2). ATC concluded that detected VOC concentrations in a majority of the monitoring wells appear to be generally stable, with some minor fluctuations in concentrations likely due to seasonal groundwater changes. Of note, VOC concentrations in monitoring well MW-10 have continued to increase as compared to historical data. While the MMPE events have been effective at reducing VOC concentrations in the groundwater, it is possible that they have also mobilized contaminants to that extraction point. The concentration of ethanol detected in monitoring well MW-6 increased since April 2021, and had not been detected above the laboratory method detection limit during prior sampling events. The air sparge wells contained MTBE and TAA over 2L Standards, the detected concentrations of those and other VOCs indicate the contaminant plume appears to be vertically defined. ATC conducted a groundwater gauging event on June 23, 2022. ATC personnel gauged eleven monitoring wells (MW-1, MW-3 through MW-6, MW-8, MW-10, MW-11, MW-12, MW-14, AS-1, and AS-2) for liquid levels. LNAPL was not detected or observed in the gauged wells. Monitoring well MW-10 contained concentrations of benzene at 5,240 ug/L (GCL of 5,000 ug/L), over its GCL. One or more VOCs were detected at concentrations above 2L Standards in groundwater monitoring wells; MW-1, MW-5, MW-6, MW-8, MW-10, MW-12, MW-14 and AS-1. Contaminant concentrations at the site appeared to be generally stable, allowing fluctuation for seasonal changes. Detected VOCs in monitoring well MW-10 have decreased in comparison to the previous sampling event. Benzene in excess of its 2L standard has been detected in AS-1 for the first time and suggests that the vertical extent of the contaminant plume is not defined in that area. ATC recommended continuing AS/MMPE events and groundwater monitoring. ATC conducted an air sparge enhanced mobile multi-phase extraction (AS/MMPE) event from March 6 to March 10, 2023. A subsequent groundwater monitoring event was completed on April 3, 2023. The groundwater samples were analyzed for volatile organic compounds (VOCs) and oxygenates by Standard Method 6200B. The AS/MMPE event recovered approximately 5,456 gallons of petroleum impacted groundwater, and 226.57 gallons of VOCs as vapor. LNAPL was not detected in the monitoring wells during the site activities. The groundwater sample collected from monitoring well MW-1 contained concentrations of TBA at 10,800 ug/L, above the GCL. Dissolved phase petroleum constituents were detected above 2L Standards in each of the The Pantry #3957 January 2, 2023 Corrective Action Monitoring Report Page 5 monitoring wells sampled with the exception of AS-1. Groundwater is estimated to flow generally to the south. In general, VOC concentrations at the site appeared to be generally stable or decreasing. ATC recommended an ozone-enhanced AS/MMPE event and groundwater monitoring, including well MW-11 to evaluate the extent of the contaminant plume upgradient of well MW-10 and the dispensers. From May 15 to 19, 2023, Zava Industrial, Inc. (Zava) performed an air-sparge enhanced 96- hour MMPE event. ATC personnel provided onsite supervision for event set-up and break- down. Air Sparge wells AS-1 and AS-2 were utilized as the air sparge points, and monitoring wells MW-5, MW-6 and MW-10 were utilized as target extraction wells for the 96-hour MMPE event. Calculated effluent airflow rates and the vapor concentration readings from the vacuum truck indicated that an estimated 481.51 pounds (89.33 equivalent gallons) of petroleum hydrocarbons were recovered as vapor during the MMPE event. The MMPE event generated approximately 6,050 gallons of petroleum impacted groundwater. ATC conducted a groundwater sampling event on June 15 - 16, 2023. ATC personnel gauged twelve monitoring wells (MW-1, MW-3 MW-4, MW-5, MW-6, MW-8, MW-10, MW-11, MW-12, MW-14, AS-1, and AS-2) for liquid levels. LNAPL was not detected or observed in the gauged wells. The laboratory analytical results from the samples collected during the June 15-16, 2023, groundwater sampling event were compared to 2L Standards and GCLs. Light Non-Aqueous Phase Liquid (LNAPL) was not detected in the monitoring wells during the site activities. Dissolved phase petroleum constituents were not detected above GCL Standards in the monitoring wells. Dissolved phase petroleum constituents were detected above 2L Standards in each of the monitoring wells sampled with the exception of AS-2.Groundwater is estimated to flow generally to the south. 2.3 Site Vicinity The site is located on the northwest corner of Wilkinson Boulevard and North Main Street in Belmont, North Carolina. Properties immediately surrounding the site are mostly commercial, while properties farther to the northwest of the site are mostly residential. Property owners and occupants for adjoining properties are listed in Table B-6. 2.4 Receptor Survey A receptor survey was performed within 1,500 feet of the site during Phase I LSA activities. Water supply wells were not identified within 1,500 feet of the site. Public water is supplied to the site and surrounding area by the local municipality. The site is not located within a wellhead protection program area or in the Coastal Plain Physiographic region. 4.0 GROUNDWATER MONITORING ATC conducted a groundwater sampling event on December 4 and 5, 2023. ATC personnel gauged twelve monitoring wells (MW-1, MW-3 MW-4, MW-5, MW-8, MW-10, MW-11, MW-12, MW-14, DMW-1,AS-1, and AS-2) for liquid levels. Groundwater monitoring well MW-6 was found to contain 0.02 feet of LNAPL. The Pantry #3957 January 2, 2023 Corrective Action Monitoring Report Page 6 Groundwater measurement data for the December 2023 monitoring event is summarized in Table B-7 and the calculated groundwater elevations and contours are depicted in Figure 3. Based on the June 2023 gauging data, groundwater flows generally to the south. Historically, the groundwater flow direction at the site has been variable and has also been to the southeast and southwest. ATC collected groundwater samples from eleven monitoring wells (MW-1, MW-3 MW-5, MW-8, MW-10, MW-11, MW-12, MW-14, DMW-1, AS-1, and AS-2). Prior to sampling, each well was purged of approximately three standing well volumes, or until the well was purged dry and allowed to recharge. Samples were collected with new disposable bailers and poured directly into laboratory-provided containers with appropriate preservatives, placed in a chilled cooler and delivered to Pace Analytical, LLC (Pace), in Huntersville, North Carolina, using proper chain of custody procedures. The samples were analyzed by Standard Method 6200B, expanded to include oxygenates. The laboratory analytical results from the samples collected during the December 4 and 5, 2023, groundwater sampling event were compared to 2L Standards and GCLs, and indicated the following:  Light Non-Aqueous Phase Liquid (LNAPL) was detected in monitoring well MW-6 (0.02 ft) during the site activities.  Dissolved phase petroleum constituents were not detected above GCL Standards in the monitoring wells.  Dissolved phase petroleum constituents were detected above 2L Standards in each of the monitoring wells sampled with the exception of AS-2 and DMW-1. A summary of the recent groundwater analytical results is included in Table B-4, historical groundwater analytical data is provided in Table B-4B. A map depicting VOCs detected at concentrations exceeding 2L Standards during the December 4 & 5, 2023, sampling event is included as Figure 4. The laboratory report for the December 4 & 5 2023, sampling is included in Appendix B. 5.0 CONCLUSIONS AND RECOMENDATIONS ATC Associates of North Carolina, P.C. (ATC), on behalf of Circle K Stores, Inc. (Circle K), has prepared a Corrective Action Monitoring Report for The Pantry #3957, located in Belmont, Gaston County, North Carolina. This report summarizes field activities conducted December 4 and 5, 2023 in accordance with Pre-Approved Task Authorization (PATA) #40256-19, as approved November 16, 2023. Based on the results of the field activities and laboratory analytical results ATC presents the following conclusions and recommendations:  Light Non-Aqueous Phase Liquid (LNAPL) was detected in monitoring well MW-6 (0.02 ft) during the site activities.  Dissolved phase petroleum constituents were not detected above GCL Standards in the monitoring wells. The Pantry #3957 January 2, 2023 Corrective Action Monitoring Report Page 7  Dissolved phase petroleum constituents were detected above 2L Standards in each of the monitoring wells sampled with the exception of AS-2 and DMW-1.  Groundwater is estimated to flow generally to the south. In general, VOC concentrations at the site appear to be generally stable or decreasing apart from MW-1 and MW-10. VOC concentrations in MW-1 have increased slightly since the previous sampling event. Constituent concentrations in MW-10 have increased since the June 2023 sampling event. VOCs are no longer present exceeding GCLs. The site and surrounding areas are supplied water by the City of Belmont. Private and public water supply wells were not identified within 1,500 feet of the subject site. Surface water bodies were not observed within 1,500 feet of the release area. ATC recommends an MMPE/AS event targeting MW-6 and MW-10, to remove LNAPL from MW-6 and address the residual LNAPL affecting constituent concentrations in MW-10. 7.0 REPORT LIMITATIONS This investigation is intended to be a non-biased assessment of on-site environmental conditions proximate to the location of the former and/or current UST system. Subsurface investigative and remedial methodologies were performed in general accordance with applicable state and federal regulatory requirements. The information presented in this report is based upon site-specific observations, generally accepted geological and environmental consulting practices, and analytical results for environmental samples collected at the time of the field investigation was performed. The data presented in this report are believed to represent subsurface conditions at the facility; however, data may not be completely representative of subsurface conditions at every location. ATC assumes no liability arising from environmental impact to, or from, the site, regardless of the date of impact occurrence or findings. TABLES Table B-1: Site History - UST System and Other Release Information Revision Date: 3/23/16 Incident Number and Name: 40256/Pantry 3957 UST ID Number Current/Last Contents Previous Contents Capacity (gallons) Construction Details Tank Dimensions Description of Associated Piping and Pumps Date Tank Installed Status of UST Was Release Associated with the UST System? 1A Regular Gasoline (Ethanol)Regular Gasoline (Ethanol)20,000 Fiberglass unknown Fiberglass 5/1/2001 In Use No 1B Premium Gasoline (Ethanol)Premium Gasoline (Ethanol)12,000 Fiberglass unknown Fiberglass 5/1/2001 In Use No 2A Diesel Diesel 4,000 Fiberglass unknown FRP 5/1/2001 In Use No 2B Kerosene Kerosene 4,000 Fiberglass unknown FRP 5/1/2001 In Use No 2C Racing Fuel Racing Fuel 4,000 Fiberglass unknown FRP 5/1/2001 Closed in place 1/8/2016 Yes AST ID Number Current/Last Contents Previous Contents Capacity (gallons) Construction Details Tank Dimensions Description of Associated Piping and Pumps Date Tank Installed Status of AST Was Release Associated with the AST System? None Associated With This Site Table B-2: Site History - UST Owner/Operator and Other Responsible Party Information Revision Date: 5/1/17 Incident Number and Name: 40256/Pantry 3957 UST ID Number 1A, 1B, 2A, 2B, 2C Facility ID Number 0-036103 City State Zip Telephone Number Raleigh NC 27606 919-774-6700 City State Zip Telephone Number Raleigh NC 27606 919-774-6700 UST ID Number 1A, 1B, 2A, 2B, 2C Facility ID Number 0-036103 City State Zip Telephone Number Charlotte NC 28224 unknown City State Zip Telephone Number Charlotte NC 28224 unknown Dates of Operation (MM/DD/YY to MM/DD/YY)Name of Owner 04/06/2007 to present Name of Operator Circle K Stores, Inc. Circle K Stores, Inc.04/06/2007 to present 1100 Situs Court, Suite 100 Street Address 1100 Situs Court, Suite 100 Street Address Name of Owner Dates of Operation (MM/DD/YY to MM/DD/YY) Dates of Operation (MM/DD/YY to MM/DD/YY) Petro Express 05/01/2001 to 04/05/2007 Street Address PO Box 24060 Petro Express 05/01/2001 to 04/05/2007 Street Address PO Box 24060 Name of Operator Dates of Operation (MM/DD/YY to MM/DD/YY) Table B-4: Summary of Groundwater Sampling Results Revision Date: 12/16/21 Incident Number and Name: 40256/Pantry 3957 Standard Method 6200B Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes, TotalMethyl-tert-butyl etherNaphthaleneDiisopropyl etherIsopropylbenzene n-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Amylmethyl etherChloroformn-Butylbenzenesec-Butylbenzene1,2,3-Trichloropropane1 600 600 500 20 6 70 70 70 400 400 40 128 70 70 70 0.005 5,000 260,000 80,000 50,000 20,000 6,000 70,000 25,000 26,100 28,500 24,100 40,000 128,000 70,000 5,900 8,800 N/A MW-1 12/05/2023 124 21,800 290 637 <6.7 60.3J <9.1 73.1 52.1J 310 92.7 <930 <15.5 <8.6 <8.3 <10.6 <21.6 MW-3 12/04/2023 1,760 2,630 787 3,384 15,300 89.1J 50.6J 65.5 71.5 531 132 5200J 625J <8.6 <8.3 <10.6 <21.6 MW-5 12/05/2023 22.8J 13,000 361 917 <6.7 133J <9.1 105 80.3 501 131 <930 <15.5 <8.6 <8.3 <10.6 <21.6 MW-8 12/05/2023 690 69,800 462 2,524 <21.3 242J <29.0 <42.4 <42.0 554 <28.5 <2980 <49.6 <27.7 <26.6 <34.0 <69.2 MW-10 12/04/2023 3,380 18,800 1310 8,700 6,470 167J 37.8J 65.3 112 1,100 246 1910J 555J <6.9 <6.6 <8.5 <17.3 MW-11 12/04/2023 0.77 0.73 0.18J 3.3 60.2 0.49J 1.3 <0.11 <0.10 1.9 1.4 <7.4 4.7J 2.7 <0.066 <0.085 <0.17 MW-12 12/04/2023 170 121 841 2,630 237 174 1.9J 125 299 2,150 569 121J 24.2J <0.86 <0.83 8.0 16.5 MW-14 12/05/2023 840 3.8J 3.8J 1,182 1,410 101 11.5 47.1 19.3 544 52.4 446J 157 0.80J 9.2 3.1J <1.7 DMW-1 12/05/2023 <0.079 <0.090 <0.081 <0.26J 0.21J 0.12J <0.072 <0.11 <0.10 0.064J <0.071 <7.4 <0.12 7.2 0.12J <0.085 <0.17 AS-1 12/04/2023 19.5 0.20J <0.081 0.78J 106 3.5 0.60 <0.11 <0.10 2.4 1.6 33.5J 7.5J 4.4 <0.066 0.16J <0.17 AS-2 12/04/2023 <0.079 0.27J <0.081 <0.41J 2.2 0.13J <0.072 <0.11 <0.10 0.14J <0.071 <7.4 <0.12 4.7 <0.066 <0.085 <0.17 2L Standards Analytical Method GCL Table B-4B: Summary of Historical Groundwater Sampling Results Revision Date: 7/5/22 Incident Number and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes, TotalMethyl-tert-butyl etherNaphthalenetert-Butyl benzeneChloromethane(Methyl Chloride)2-Chlorotoluene4-Chlorotoluene1,2-Dichloroethanetrans-13-DichloropropeneDiisopropyl etherEthanol2-HexanoneIsopropylbenzenep-Isopropyl toluene (p-Cymene)Methylene Chloriden-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Amylmethyl ethertert-Butyl Alcohol (TBA)Chloroformn-Butylbenzenesec-Butylbenzene1,2,3-Trichloropropane2L Standard 1 600 600 500 20 6 70 3 100 24 0.4 0.4 70 4,000 40 70 25 400 70 400 400 40 128 10 70 70 70 0.005 GCL 5,000 260,000 80,000 50,000 20,000 6,000 14,750 3,000 NE 24,000 400 400 70,000 4,000,000 40,000 30,500 11,700 400,000 26,100 28,500 24,100 40,000 128,000 10,000 70000 6900 8,800 N/A 8/23/2013 5,660 175,000 900 4,360 626 <2,500 <625 NR NR NR NR NR <625 NR NR <625 NR <2,500 <625 360 J <625 NR NR NR NR NR NR NR 2/27/2014 4,600 188,000 1,670 7,410 <500 <2,000 <500 NR NR NR NR NR <500 NR NR <500 NR <2,000 <500 1,570 <500 NR NR NR NR NR NR NR 7/9/2015 2,770 143,000 637 3,880 <625 <2,500 <625 NR NR NR NR NR <625 NR NR <625 NR <2,500 <625 1,050 <625 NR NR NR NR NR NR NR 3/3/2016 1,900 126,000 686 4,320 <500 <2,000 <500 NR NR NR NR NR <500 NR NR <500 NR <2,000 <500 774 <500 NR NR NR NR NR NR NR 6/10/2016 1,760 153,000 1,610 10,700 <500 <2,000 <500 NR NR NR NR NR <500 NR NR 993 NR 2,210 823 6,770 1,750 NR NR NR NR NR NR NR 11/2/2016 1,800 190,000 840 3,200 J <500 <500 <500 NR NR NR NR NR <500 NR NR <500 NR <5,000 170 J 970 240 J NR NR NR NR NR NR NR 4/7/2017 1,400 150,000 1,500 4,000 <50 74 <50 NR NR NR NR NR <50 NR NR 180 NR <500 110 780 200 NR NR NR NR NR NR NR 12/21/2017 1,900 190,000 1,000 4,800 <1,000 3,400 3,600 NR NR NR NR NR <1,000 NR NR <1,000 NR <10,000 <1,000 1,600 360 J NR NR NR NR NR NR NR 4/20/2018 1,600 110,000 920 4,300 <180 <240 <240 NR NR NR NR NR <360 NR NR <240 NR <6400 <260 <360 <260 NR NR NR NR NR NR NR 10/29/2018 2,130 193,000 809 4,130 <130 <130 NA NR NR NR NR NR <130 NR NR NA NR NA NA NA NA NR NR NR NR NR NR NR 11/8/2018 1,200 134,000 474 J 2,570 <130 <130 <130 NR NR NR NR NR <130 NR NR <130 NR <1000 <130 277 J <130 NR NR NR NR NR NR NR 8/28/2019 82.2 J 32,300 231 1170 <25 <25 <25 NR <25 NR NR NR <25 NR NR 39.2 J <25 <40 29.9 J 173 60.2 J NR NR NR NR NR NR NR 4/28/2020 39.6J 14,500 168 977 <55.5 <82.4 <31.2 NR <25.9 NR NR NR <41.8 NR NR 68.6 NR <188 <30.1 372 103 NR NR NR NR NR NR NR 11/5/2020 34.7 8,410 161 720 <22.2 71.4J NR NR NR NR <13.2 NR <16.7 NR <30.2 55.9 NR <75.0 <12.0 323 <11.4 <2020 NR NR NR NR NR NR 4/20/2021 17.4 1700 88.6 279 <5.3 37.5 NR NR NR NR NR NR <3.8 <902 NR 27.1 NR <24.4 <4.2 159 39.6 <455 <33.2 <335 NR NR NR NR 12/1/2021 1.11 3.8 46 13.2 0.277J 5.82 1.89J 1.07 1.05 0.263J <0.150 <0.150 <0.500 <42.0 0.389J 15.6 0.216J <0.330 8.15 15.8 9.5 13.4 <0.280 6.43J NR NR NR NR 06/23/2022 28.0 1,570 121 121 <5.3 39.1 <4.0 <6.8 <4.0 <4.0 <4.0 <4.5 <3.8 <902 NR 24.1 NR <24.4 13.6 69.2 24.9 <455 <116 <335 <5.4 NR NR NR 04/03/2023 139 25,500 290 638 <84.4 <129 <64.6 <108 <64.2 <64.8 <64.4 NR <61.6 <14400 NR <66.6 NR 2,020 <68.0 238 <66.4 <7280 <1850 10,800 <86.0 <98.0 NR NR 6/15/2023 77.9 9,360 265 418 <21.1 44.4J <16.2 <27.0 <16.0 <16.2 <16.1 <18.2 <15.4 <3610 NR 67.5 NR <97.5 49.0 304 91.5 <1820 <462 <1340 <21.5 <24.5 NR NR 12/05/2023 124 21,800 290 637 <6.7 60.3J <10.7 NR NR NR <13.2 <16.5 <9.1 <631 NR 73.1 NR <236 52.1J 310 92.7 <930 <15.5 <511 <8.6 <8.3 <10.6 <21.6 2/27/2014 <0.50 0.77 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 7/9/2015 3.1 0.32 J <0.50 <2.0 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR 0.43 J NR <2.0 <0.50 0.81 <0.50 NR NR NR NR NR NR NR 2/27/2014 7/10/2015 11,700 223,000 2,110 12,060 16,500 191 J <50.0 NR NR NR NR NR 95.5 NR NR 261 NR <200 173 1,160 260 NR NR NR NR NR NR NR 9/14/2015 2,370 6,480 277 1,823 7,120 138 <25 NR NR NR NR NR 26.4 NR NR 114 NR <100 68.1 507 141 NR NR NR NR NR NR NR 3/3/2016 2,760 12,800 367 2,734 5,760 182 <25 NR NR NR NR NR 30 NR NR 142 NR <100 95 757 201 NR NR NR NR NR NR NR 6/10/2016 3,580 34,500 577 6,240 8,220 <500 <125 NR NR NR NR NR <125 NR NR 150 NR 580 <125 1,150 284 NR NR NR NR NR NR NR 11/2/2016 5,600 85,000 850 6,600 8,900 <250 <250 NR NR NR NR NR <250 NR NR <250 NR <2,500 110 J 950 220 J NR NR NR NR NR NR NR 4/7/2017 5,800 98,000 1,700 16,500 19,000 310 <100 NR NR NR NR NR 98 J NR NR 180 NR <1,000 160 2,300 560 NR NR NR NR NR NR NR 12/21/2017 5,700 51,000 580 3,700 12,000 <500 <500 NR NR NR NR NR <500 NR NR <2,000 NR <5,000 <500 <1,000 <2,000 NR NR NR NR NR NR NR 4/2/2018*3,800 40,000 630 4,200 8,900 NA NA NR NR NR NR NR NA NR NR NA NR NA NA NA NA NR NR NR NR NR NR NR 4/20/2018 1,100 5,500 140 690 4,400 <12 <12 NR NR NR NR NR <18 NR NR 53 NR <320 23 190 56 NR NR NR NR NR NR NR 11/8/2018 2,350 25,500 360 1,790 6,170 <63 <63 NR NR NR NR NR <63 NR NR 81.9 J NR <500 <63 221 J 72.0 J NR NR NR NR NR NR NR 8/28/2019 3,800 73,000 1120 6360 9490 <130 <130 NR <130 NR NR NR <130 NR NR <130 <130 <200 <130 743 254 J NR NR NR NR NR NR NR 4/6/2020 3,820 65,700 1,180 8,120 11,700 <330 <125 NR <104 NR NR NR <167 NR NR <119 NR <750 <120 1,360 <114 NR NR NR NR NR NR NR 4/28/2020 1,090 18,700 678 4,200 3,560 210J <31.2 NR <25.9 NR NR NR <41.8 NR NR 89.1 NR <188 <30.1 814 <28.4 NR NR NR NR NR NR NR 11/5/2020 3,500 31,500 1,150 6,910 13,100 195J NR NR NR NR <52.6 NR <66.8 NR <121 128 NR <300 <48.2 1,150 <45.4 <8100 NR NR NR NR NR NR 4/20/2021 4170 53200 1510 9570 18000 268J NR NR NR NR NR <28900 <123 <28900 NR <133 NR <780 <136 1,350 <133 <14600 <1060 <10700 NR NR NR NR 12/1/2021 06/23/2022 2,160 14,600 978 5,030 12,000 129J <40.4 <67.5 <40.1 <40.5 <40.2 <45.4 53.2J <9020 NR 98.5 NR <244 101 700 179 5260J <1160 4500J <53.8 NR NR NR 04/03/2023 1,450 11,600 897 5,210 7,800 92.2J <32.3 <54.0 <32.1 <32.4 <32.2 NR <30.8 <7220 NR 78.7 NR 812 123 869 217 <3640 <925 5260 <43.0 <49.0 NR NR 6/16/2023 2,460 14,500 1,080 5,740 14,600 117J <40.4 <67.5 <40.1 <40.5 <40.2 <45.4 43.2J <9020 NR 93.8 NR <244 113 852 175 <4550 <1160 <3350 <53.8 <61.2 NR NR 12/04/2023 1,760 2,630 787 3,384 15,300 89.1J <10.7 NR NR NR <13.2 <16.5 50.6J <631 NR 65.5 NR <236 71.5 531 132 5200J 625J <511 <8.6 <8.3 <10.6 <21.6 2/27/2014 3,040 192,000 1,510 7,820 926 <2,000 <500 NR NR NR NR NR <500 NR NR <500 NR <2,000 <500 1,300 <500 NR NR NR NR NR NR NR 7/10/2015 1,760 90,700 537 J 2,761 474 J <2,500 <625 NR NR NR NR NR <625 NR NR <625 NR <2,500 <625 536 J <625 NR NR NR NR NR NR NR 3/3/2016 2,070 172,000 1,530 8,830 422 <1,000 <250 NR NR NR NR NR <250 NR NR 497 NR <1,000 382 2,300 570 NR NR NR NR NR NR NR 6/10/2016 875 93,200 788 4,490 <250 <1,000 <250 NR NR NR NR NR <250 NR NR <250 NR 1,140 <250 1,060 278 NR NR NR NR NR NR NR 11/2/2016 1,900 190,000 750 4,200 100 J <500 <500 NR NR NR NR NR <500 NR NR <500 NR <5,000 <500 570 <1,000 NR NR NR NR NR NR NR 4/7/2017 1,400 140,000 850 5,100 180 110 <50 NR NR NR NR NR <50 NR NR 170 NR <500 98 740 180 NR NR NR NR NR NR NR 12/21/2017 2,800 170,000 700 J 3,700 <1,200 <1,200 <1,200 NR NR NR NR NR <1,200 NR NR <5,000 NR <12,000 <1,200 <2,500 <5,000 NR NR NR NR NR NR NR 4/2/2018*2,800 180,000 870 4,900 210 NA NA NR NR NR NR NR NA NR NR NA NR NA NA NA NA NR NR NR NR NR NR NR 4/20/2018 1,500 150,000 1,000 5,600 <180 <240 <240 NR NR NR NR NR <360 NR NR <240 NR <6400 <260 920 <260 NR NR NR NR NR NR NR 10/29/2018 1,320 135,000 517 2,660 <130 <130 NA NR NR NR NR NR <130 NR NR NA NR NA NA NA NA NR NR NR NR NR NR NR 11/8/2018 1,370 134,000 826 4,640 <130 <130 <130 NR NR NR NR NR <130 NR NR <130 NR <1000 <130 431 J <130 NR NR NR NR NR NR NR 8/28/2019 4/6/2020 1,100 118,000 623 3,000 <444 <659 <250 NR <207 NR NR NR <334 NR NR <238 NR <1500 <241 544 <227 NR NR NR NR NR NR NR 4/28/2020 11/5/2020 623 83,100 538 2,480 <222 <330 NR NR NR NR <132 NR <167 NR <302 <119 NR <750 <120 639 <114 <20200 NR NR NR NR NR NR 3/31/2021 414 57,600 364J 1760 <169 <258 NR NR NR NR NR NA <123 NA NR NA NR <780 NA NA NA <20200 NA NA NR NR NR NR 4/20/2021 147 30,300 228 1030 <106 166J NR NR NR NR NR <18000 <77.0 <18000 NR <83.2 NR <488 <85.0 243 <83.0 <9100 <665 <6700 NR NR NR NR 12/1/2021 262 72,400 470 1,740 2.46J 68.8 51.6J 20 10.1 <2.00 <1.50 <1.50 <5.00 <420 13.6 102 6.64 <3.30 60.4 426 94.7 <19.0 6.98J 42.1J NR NR NR NR 06/23/2022 04/03/2023 6/15/2023 12/4/2023 Analytical Method MW-2 Standard Method 6200B Not Sampled - Well Obstructed MW-1 MW-3 MW-4 Not sampled, well obstructed Not Sampled Due to Presence of Free Product Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled Page 1 of 4 Table B-4B: Summary of Historical Groundwater Sampling Results Revision Date: 7/5/22 Incident Number and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes, TotalMethyl-tert-butyl etherNaphthalenetert-Butyl benzeneChloromethane(Methyl Chloride)2-Chlorotoluene4-Chlorotoluene1,2-Dichloroethanetrans-13-DichloropropeneDiisopropyl etherEthanol2-HexanoneIsopropylbenzenep-Isopropyl toluene (p-Cymene)Methylene Chloriden-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Amylmethyl ethertert-Butyl Alcohol (TBA)Chloroformn-Butylbenzenesec-Butylbenzene1,2,3-Trichloropropane2L Standard 1 600 600 500 20 6 70 3 100 24 0.4 0.4 70 4,000 40 70 25 400 70 400 400 40 128 10 70 70 70 0.005 GCL 5,000 260,000 80,000 50,000 20,000 6,000 14,750 3,000 NE 24,000 400 400 70,000 4,000,000 40,000 30,500 11,700 400,000 26,100 28,500 24,100 40,000 128,000 10,000 70000 6900 8,800 N/A Analytical Method Standard Method 6200B 2/27/2014 7/10/2015 4,250 303,000 741 3,920 <500 <2,000 <500 NR NR NR NR NR <500 NR NR <500 NR <2,000 <500 420 J <500 NR NR NR NR NR NR NR 9/14/2015 4,100 350,000 1,650 10,020 <1,250 <5,000 <1,250 NR NR NR NR NR <1,250 NR NR <1,250 NR <5,000 <1,250 4,280 <1,250 NR NR NR NR NR NR NR 3/3/2016 1,560 232,000 860 5,430 <625 <2,500 <625 NR NR NR NR NR <625 NR NR <625 NR <2,500 <625 829 <625 NR NR NR NR NR NR NR 6/10/2016 1,040 184,000 871 5,010 <625 <2,500 <625 NR NR NR NR NR <625 NR NR <625 NR 2,690 <625 1,220 <625 NR NR NR NR NR NR NR 11/2/2016 1,200 330,000 800 4,500 <250 <250 <250 NR NR NR NR NR <250 NR NR <250 NR <2,500 75 J 560 130 J NR NR NR NR NR NR NR 4/7/2017 740 190,000 950 5,700 <50 130 <50 NR NR NR NR NR <50 NR NR 180 NR <500 120 850 220 NR NR NR NR NR NR NR 12/21/2017 <2,500 130,000 <2,500 2,200 <2,500 <2,500 <2,500 NR NR NR NR NR <2,500 NR NR <10,000 NR <25,000 <2,500 <5,000 <10,000 NR NR NR NR NR NR NR 4/2/2018*680 180,000 870 4,900 <90 NA NA NR NR NR NR NR NA NR NR NA NR NA NA NA NA NR NR NR NR NR NR NR 4/20/2018 1,700 200,000 760 3,900 <360 <480 <480 NR NR NR NR NR <720 NR NR <480 NR <13000 <520 <720 <520 NR NR NR NR NR NR NR 11/8/2018 756 186,000 912 4810 <130 <130 <130 NR NR NR NR NR <130 NR NR <130 NR <1000 <130 419 J <130 NR NR NR NR NR NR NR 8/28/2019 <130 46,100 594 1310 J <130 <130 <130 NR <130 NR NR NR <130 NR NR <130 <130 <200 <130 354 J <130 NR NR NR NR NR NR NR 4/28/2020 <120 94,800 955 3,850 <222 <330 <125 NR <104 NR NR NR <167 NR NR <119 NR <750 <120 622 <114 NR NR NR NR NR NR NR 11/5/2020 <24.0 12,800 317 654 <44.4 172J NR NR NR NR <26.3 NR <33.4 NR <60.4 87.8 NR <150 <24.1 414 103 <4050 NR NR NR NR NR NR 3/31/2021 872J 105,000 849J 2670 <422 <645 NR NR NR NR NR NA <308 NA NR NA NR <1950 NA NA NA NA NA NA NR NR NR NR 4/20/2021 383 90,000 658 2080 <211 <322 NR NR NR NR NR NR <154 <36100 NR <166 NR <975 <170 630 <166 <18200 <1330 <13400 NR NR NR NR 12/1/2021 222 74,000 625 1,700 5.1J 124 75.7 20.2 17.1 <2.00 2.15J <1.50 <5.00 <420 15.5 147 10.2 <3.30 94.3 635 152 46.1J 4.89J 39.2J NR NR NR NR 06/23/2022 <172 62,800 493 1,720 <211 <322 <162 <270 <160 <162 <161 <182 <154 <36100 NR <166 NR <975 <170 444 <166 <18200 <4620 <13400 <215 NR NR NR 04/03/2023 <172 62,700 588 1,787 <211 <322 <162 <270 <160 <162 <161 NR <154 <36100 NR <166 NR <975 <170 472 <166 <18200 <4620 <13400 <215 <245 NR NR 6/15/2023 90.2J 27,000 363 1,412 <84.4 <129 <64.6 <108 <64.2 <64.8 <64.4 <72.6 <61.6 <14400 NR 89.3J NR <390 <68.0 408 87.0J <7280 <1850 <5360 <86.0 <98.0 NR NR 12/05/2023 22.8J 13,000 361 917 <6.7 133J <10.7 NR NR NR <13.2 <16.5 <9.1 <631 NR 105 NR <236 80.3 501 131 <930 <15.5 <511 <8.6 <8.3 <10.6 <21.6 2/27/2014 7/10/2015 3,590 290,000 615 3,390 43.9 J <200 <50.0 NR NR NR NR NR <50.0 NR NR 77.4 NR <200 48.6 J 303 71.6 NR NR NR NR NR NR NR 9/14/2015 2,600 258,000 <1,250 5,970 <1,250 <5,000 <1,250 NR NR NR NR NR <1,250 NR NR <1,250 NR <5,000 <1,250 1,340 <1,250 NR NR NR NR NR NR NR 3/3/2016 2,360 308,000 1,960 11,680 <1,000 <4,000 <1,000 NR NR NR NR NR <1,000 NR NR <1,000 NR <4,000 <1,000 3,100 <1,000 NR NR NR NR NR NR NR 6/10/2016 2,450 330,000 4,900 30,440 <1,000 <4,000 <1,000 NR NR NR NR NR <1,000 NR NR 2,320 NR 4,410 1,980 18,000 4,350 NR NR NR NR NR NR NR 11/2/2016 2,900 220,000 680 J 3,800 <1,000 <1,000 <1,000 NR NR NR NR NR <1,000 NR NR <1,000 NR <2,000 <1,000 600 J <200 NR NR NR NR NR NR NR 4/7/2017 2,700 180,000 760 4,000 <250 <250 <250 NR NR NR NR NR <250 NR NR 150 J NR <2,500 <250 700 170 J NR NR NR NR NR NR NR 12/21/2017 3,600 180,000 620 J 2,500 J <1,200 <1,200 <1,200 NR NR NR NR NR <1,200 NR NR <5,000 NR <12,000 <1,200 <2,500 <5,000 NR NR NR NR NR NR NR 4/20/2018 2,600 120,000 560 2,380 <180 <240 <240 NR NR NR NR NR <360 NR NR <240 NR <6400 <260 420 <260 NR NR NR NR NR NR NR 11/8/2018 2,900 106,000 774 3200 <130 <130 <130 NR NR NR NR NR <130 NR NR 147 J NR <1000 <130 483 J 154 J NR NR NR NR NR NR NR 8/28/2019 2,820 134,000 691 J 2210 J <310 <310 <310 NR <310 NR NR NR <310 NR NR <310 <310 <500 <310 <310 <310 NR NR NR NR NR NR NR 4/28/2020 2,950 97,100 587 2,980 <444 <659 <250 NR <207 NR NR NR <334 NR NR <238 NR <1500 <241 610 <227 NR NR NR NR NR NR NR 11/5/2020 1,980 71,700 391 1,900 <222 <330 NR NR NR NR <132 NR <167 NR <302 <119 NR <750 <120 391 <114 <20200 NR NR NR NR NR NR 4/20/2021 3110 96700 526 2120 <211 <322 NR NR NR NR NR NR <154 55,300J NR <166 NR <975 <170 320 <166 <18200 <1330 <13400 NR NR NR NR 12/1/2021 3,670 84,600 735 3,320 61.2J 235 <92.0 98.1 <20.0 25.4J 38.1J 1,680 <50.0 96,900 115 132 <8.90 <33.0 92.8 498 121 328J 85.7J 210J NR NR NR NR 06/23/2022 2,690 71,900 577 2,400 <211 <322 <162 <270 <160 <162 <161 <182 <154 <36100 NR <166 NR <975 <170 394 <166 <18200 <4620 <13400 <215 NR NR NR 04/03/2023 2,610 90,400 649 2,643 <211 <322 <162 <270 <160 <162 <161 NR <154 55,700J NR <166 NR <975 <170 476 <166 <18200 <4620 <13400 <215 <245 NR NR 6/15/2023 2,370 88,200 595 2,686 <211 <322 <162 <270 <160 <162 <161 <182 <154 <36100 NR <166 NR <975 <170 453 <166 <18200 <4620 <13400 <215 <245 NR NR 12/5/2023 2/27/2014 <0.50 14.9 <0.50 0.59 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 0.78 <0.50 NR NR NR NR NR NR NR 7/9/2015 0.83 47.7 1.0 7.4 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 1.6 0.30 J NR NR NR NR NR NR NR 5/27/2014 2,850 273,000 683 4,100 87.0 <200 <50.0 NR NR NR NR NR <50.0 NR NR 86.7 NR <2.0 59.2 467 91.2 NR NR NR NR NR NR NR 7/10/2015 3,280 260,000 636 J 3,550 <1,250 <5,000 <1,250 NR NR NR NR NR <1,250 NR NR <1,250 NR <5,000 <1,250 <1,250 <1,250 NR NR NR NR NR NR NR 3/3/2016 1,240 152,000 701 4,720 <500 <2,000 <500 NR NR NR NR NR <500 NR NR <500 NR <2,000 <500 1,100 <500 NR NR NR NR NR NR NR 6/10/2016 750 108,000 <500 3,240 <500 <2,000 <500 NR NR NR NR NR <500 NR NR <500 NR 2,280 <500 645 <500 NR NR NR NR NR NR NR 11/2/2016 2,900 250,000 720 4,500 <250 <250 <250 NR NR NR NR NR <250 NR NR <250 NR <2,500 90 J 640 140 J NR NR NR NR NR NR NR 4/7/2017 2,100 200,000 700 4,800 <25 160 <25 NR NR NR NR NR <25 NR NR 130 NR <250 84 740 170 NR NR NR NR NR NR NR 12/21/2017 2,400 230,000 600 J 3,200 J <1,200 <1,200 <1,200 NR NR NR NR NR <1,200 NR NR <5,000 NR <12,000 <1,200 550 J <5,000 NR NR NR NR NR NR NR 4/20/2018 1,700 150,000 500 3,000 <220 <300 <300 NR NR NR NR NR <450 NR NR <300 NR <8000 <320 500 <320 NR NR NR NR NR NR NR 11/8/2018 1,730 162,000 604 3,430 <130 <130 <130 NR NR NR NR NR <130 NR NR <130 NR <1000 <130 340 J <130 NR NR NR NR NR NR NR 8/28/2019 776 J 124,000 <630 <1300 <630 <630 <630 NR <630 NR NR NR <630 NR NR <630 <630 <1000 <630 <630 <630 NR NR NR NR NR NR NR 4/28/2020 837 109,000 638 3,350 <444 <659 <250 NR <207 NR NR NR <334 NR NR <238 NR <1500 <241 693 <227 NR NR NR NR NR NR NR 11/5/2020 458 70500 475 2,540 <178 <264 NR NR NR NR <105 NR <134 NR <242 <95.2 NR <600 <96.4 501 <90.8 <16200 NR NR NR NR NR NR 4/20/2021 9.5 1360 19.2 99.2 <5.3 14.3J NR NR NR NR NR <902 <3.8 <902 NR <4.2 NR <24.4 <4.2 30.1 <4.2 <455 <33.2 <335 NR NR NR NR 12/1/2021 399 56,200 446 2,040 <14.0 79.1J <92.0 <22.0 <20.0 <20.0 <15.0 <15.0 <50.0 <4200 <38.0 102 <8.90 <33.0 68.2 451 95.7 <190 <28.0 <160 NR NR NR NR 06/23/2022 337 52,100 446 2,340 <169 <258 <129 <216 <128 <130 <129 <145 <123 <28900 NR <133 NR 7350 <136 632 153J <14600 <3700 <10700 <172 NR NR NR 04/03/2023 626 78,900 469 2,626 <169 <258 <129 <216 <128 <130 <129 NR <123 <28900 NR <133 NR <780 <136 518 <133 <14600 <3700 <10700 <172 <196 NR NR 6/15/2023 628 69,700 476 2,555 <0.42 140 <0.32 <0.54 <0.32 <0.32 <0.32 <0.36 <0.31 <72.2 NR 124 NR <2.0 85.3 552 145 <36.4 <9.2 32.1J <0.43 <0.49 NR NR 12/05/2023 690 69,800 462 2,524 <21.3 242J <34.2 NR NR NR <42.4 <52.8 <29.0 <2020 NR <42.4 NR <756 <42.0 554 <28.5 <2980 <49.6 <1640 <27.7 <26.6 <34.0 <69.2 5/27/2014 159 44.3 18.1 1,426 22.2 40.4 101 NR NR NR NR NR 0.76 NR NR 42.2 NR <2.0 54.8 690 55.6 NR NR NR NR NR NR NR 7/9/2015 257 95.7 42.7 3,470 8.5 234 <2.5 NR NR NR NR NR <2.5 NR NR 96.9 NR <10.0 150 2,380 303 NR NR NR NR NR NR NR MW-7 MW-9 Not Sampled Due to Presence of Free Product Not Sampled Due to Presence of Free Product MW-5 MW-8 MW-6 Not Sampled Due to Presence of Free Product Page 2 of 4 Table B-4B: Summary of Historical Groundwater Sampling Results Revision Date: 7/5/22 Incident Number and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes, TotalMethyl-tert-butyl etherNaphthalenetert-Butyl benzeneChloromethane(Methyl Chloride)2-Chlorotoluene4-Chlorotoluene1,2-Dichloroethanetrans-13-DichloropropeneDiisopropyl etherEthanol2-HexanoneIsopropylbenzenep-Isopropyl toluene (p-Cymene)Methylene Chloriden-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Amylmethyl ethertert-Butyl Alcohol (TBA)Chloroformn-Butylbenzenesec-Butylbenzene1,2,3-Trichloropropane2L Standard 1 600 600 500 20 6 70 3 100 24 0.4 0.4 70 4,000 40 70 25 400 70 400 400 40 128 10 70 70 70 0.005 GCL 5,000 260,000 80,000 50,000 20,000 6,000 14,750 3,000 NE 24,000 400 400 70,000 4,000,000 40,000 30,500 11,700 400,000 26,100 28,500 24,100 40,000 128,000 10,000 70000 6900 8,800 N/A Analytical Method Standard Method 6200B 5/27/2014 1,120 4,720 373 3,890 12,000 59.6 <0.50 NR NR NR NR NR 27.0 NR NR 28.2 NR <2.0 45.4 925 206 NR NR NR NR NR NR NR 7/9/2015 5,990 22,100 1,350 8,150 70,200 <1000 <250 NR NR NR NR NR 153 J NR NR <250 NR <1000 139 J 1,120 243 J NR NR NR NR NR NR NR 9/14/2015 5,650 23,100 1,470 9,860 52,800 <1,000 <250 NR NR NR NR NR <250 NR NR <250 NR <1000 <250 1,380 300 NR NR NR NR NR NR NR 3/3/2016 2,220 6,190 545 3,890 18,800 <250 <62.5 NR NR NR NR NR <62.5 NR NR <62.5 NR <250 74.6 721 171 NR NR NR NR NR NR NR 6/10/2016 8,340 41,000 2,300 13,880 98,900 <2,000 <500 NR NR NR NR NR <500 NR NR <500 NR <2,000 <500 1,740 <500 NR NR NR NR NR NR NR 11/2/2016 11,000 57,000 2,500 18,100 91,000 <250 <250 NR NR NR NR NR 220 J NR NR <250 NR <2,500 190 J 1,600 340 J NR NR NR NR NR NR NR 4/7/2017 12,000 57,000 3,100 20,800 130,000 250 <50 NR NR NR NR NR 270 NR NR 120 NR <500 220 2,200 520 NR NR NR NR NR NR NR 12/21/2017 7,900 35,000 1,500 9,700 100,000 <500 <500 NR NR NR NR NR <500 NR NR <2,000 NR <5,000 <500 900 J 220 J NR NR NR NR NR NR NR 4/20/2018 5,000 21,000 1,400 9,100 61,000 <120 <120 NR NR NR NR NR <180 NR NR <120 NR <3200 <130 1,000 210 NR NR NR NR NR NR NR 10/29/2018 3,720 20,300 1,340 9,930 29,700 111 J NA NR NR NR NR NR 59.1 J NR NR NA NR NA NA NA NA NR NR NR NR NR NR NR 11/8/2018 1,030 4,470 351 3,010 5,950 58.3 J <25 NR NR NR NR NR <25 NR NR 31.5 J NR <200 48.2 J 458 109 NR NR NR NR NR NR NR 8/28/2019 3720 16700 862 5170 28,900 77.9 J <25 NR <25 NR NR NR 67.1 J NR NR 33.8 J <25 94.4 J 45.0 J 445 135 NR NR NR NR NR NR NR 4/6/2020 10,500 51,500 2,350 22,700 112,000 1,700J <250 NR <207 NR NR NR <334 NR NR <238 NR <1500 <241 3,660 <227 NR NR NR NR NR NR NR 4/28/2020 584 1,360 123 914 2,650 106 <5.0 NR <4.1 NR NR NR 7.2J NR NR 24.8 NR <30.0 <4.8 164 <4.5 NR NR NR NR NR NR NR 11/5/2020 5,560 29,900 1,930 12,300 38,400 268J NR NR NR NR <65.8 NR 119J NR <151 <59.5 NR <375 <60.2 1,580 <56.8 <10100 NR NR NR NR NR NR 3/31/2021 6,330 37,000 2,480 15,300 43,400 362J NR NR NR NR NR NA 111J NA NR NA NR <488 NA NA NA NA NA NA NR NR NR NR 4/20/2021 9,040 51,100 3,100 19,900 53,700 367J NR NR NR NR NR <28900 172J <28900 NR <133 NR <780 <136 2320 <133 <14600 2,680J <10700 NR NR NR NR 12/1/2021 12,600 73,400 4,800 30,300 76,400 720J <920 <220 <200 <200 <150 1,330 <500 <42000 <380 204J <89.0 <330 386J 3,210 695 11,100 4,430J 1,690J NR NR NR NR 06/23/2022 5,240 29,200 1870 12,600 12,700 223J <80.8 <135 <80.2 <81.0 <80.5 <90.8 144 <18000 NR 160 NR <488 196 1,390 390 <9100 <2310 <6700 <108 NR NR NR 04/03/2023 1,770 9,260 723 5,480 3,470 109 <16.2 <27.0 <16.0 <16.2 <16.1 NR 21.1J <3610 NR 48.2 NR 606 74.9 762 155 <1820 <462 2570 <21.5 <24.5 NR NR 6/16/2023 615 2,130 208 1,755 1,350 58.5 <4.0 <6.8 <4.0 <4.0 <4.0 <4.5 6.0J <902 NR 16.5 NR <24.4 21.8 296 52.7 <455 <116 <335 <5.4 <6.1 NR NR 12/04/2023 3,380 18,800 1,310 8,700 6,470 167J <8.6 NR NR NR <10.6 <13.2 37.8J <505 NR 65.3 NR <189 112 1,100 246 1910J 555J <409 <6.9 <6.6 <8.5 <17.3 5/27/2014 809 2,440 482 2,780 469 30.3 <0.50 NR NR NR NR NR 5.4 NR NR 41.2 NR <2.0 74.4 705 142 NR NR NR NR NR NR NR 7/9/2015 1,870 10,800 1,120 7,900 2,020 111 <10.0 NR NR NR NR NR 19.2 NR NR 62.7 NR 42.8 133 1,670 346 NR NR NR NR NR NR NR 06/23/2022 1.8 1.5 0.59 47.2 71.8 2.4 <0.32 <0.54 <0.32 <0.32 <0.32 <0.36 1.5 127J NR <0.33 NR <2.0 <0.34 50.9 17.7 <36.4 <9.2 <26.8 <0.43 NR NR NR 6/16/2023 0.59 <0.24 <0.30 4.2 27.6 <0.64 <0.32 <0.54 <0.32 <0.32 <0.32 <0.36 0.68 <72.2 NR <0.33 NR <2.0 <0.34 7.2 2.0 <36.4 <9.2 <26.8 3.1 <0.49 NR NR 12/04/2023 0.77 0.73 0.18J 3.3 60.2 0.49J <0.086 NR NR NR <0.11 <0.13 1.3 <5.0 NR <0.11 NR <1.9 <0.10 1.9 1.4 <7.4 4.7J <4.1 2.7 <0.066 <0.085 <0.17 5/27/2014 3,540 57,400 5,320 32,900 6,780 515 <50.0 NR NR NR NR NR <50.0 NR NR 260 NR <2.0 577 4,500 958 NR NR NR NR NR NR NR 7/9/2015 9,690 71,300 10,400 59,600 17,500 722 J <250 NR NR NR NR NR <250 NR NR 455 NR <1,000 1,170 7,700 1,870 NR NR NR NR NR NR NR 9/14/2015 4,980 69,400 9,450 57,300 8,910 <1,000 <250 NR NR NR NR NR <250 NR NR 886 NR <1,000 2,470 15,800 4,390 NR NR NR NR NR NR NR 3/3/2016 3,550 44,900 4,710 43,300 6,750 889 <125 NR NR NR NR NR <125 NR NR 404 NR <500 1,130 10,600 2,690 NR NR NR NR NR NR NR 6/10/2016 2,920 37,300 3,420 28,030 5,730 <500 <125 NR NR NR NR NR <125 NR NR 158 NR 546 394 4,450 1,120 NR NR NR NR NR NR NR 11/2/2016 3,700 55,000 4,500 36,000 4,500 300 <250 NR NR NR NR NR <250 NR NR <250 NR <2,500 390 3,600 870 NR NR NR NR NR NR NR 4/7/2017 1,100 16,000 5,000 30,600 1,100 400 <50 NR NR NR NR NR <50 NR NR 270 NR <500 630 5,000 1,300 NR NR NR NR NR NR NR 12/21/2017 1,100 9,000 2,600 22,900 1,900 650 <100 NR NR NR NR NR <100 NR NR 170 J NR <1,000 400 3,600 920 NR NR NR NR NR NR NR 4/20/2018 280 910 2,300 14,800 400 200 <12 NR NR NR NR NR <18 NR NR 190 NR <320 410 3,200 850 NR NR NR NR NR NR NR 11/8/2018 444 852 2,300 17,900 537 207 <25 NR NR NR NR NR <25 NR NR 146 NR <200 352 2,970 746 NR NR NR NR NR NR NR 8/28/2019 639 400 1290 9960 771 170 <13 NR 106 NR NR NR <13 NR NR 125 <13 <20 324 3140 828 NR NR NR NR NR NR NR 4/28/2020 223 175 973 6,130 259 250 <5.0 NR <4.1 NR NR NR <6.7 NR NR 144 NR <30.0 <4.8 2,640 <4.5 NR NR NR NR NR NR NR 11/5/2020 255 269 918 5,140 391 216 NR NR NR NR <5.3 NR <6.7 NR 28.4J 128 NR <30.0 <4.8 2,300 <4.5 <810 NR NR NR NR NR NR 4/20/2021 86.2 32.2 403 1930 136 92.2 NR NR NR NR NR <902 <3.8 <902 NR 72.1 NR <24.4 <4.2 1510 <4.2 <455 <33.2 <335 NR NR NR NR 12/1/2021 366 498 1,260 5,820 639 226 347 <22.0 85.1 104 <15.0 <15.0 <50.0 <4200 <38.0 166 43.2J <33.0 360 2,860 756 230J 70.1J <160 NR NR NR NR 06/23/2022 218 426 924 3,920 269 195 <4.0 <6.8 <4.0 <4.0 <4.0 <4.5 <3.8 <902 NR 127 NR <24.4 262 2,190 573 <455 <116 <335 <5.4 NR NR NR 04/03/2023 211 81.1 810 3,740 285 209 <8.1 <13.5 <8.0 <8.1 <8.0 NR <7.7 <1800 NR 177 NR 297 401 3240 914 <910 <231 <670 <10.8 96.6 NR NR 6/15/2023 124 19.2 556 2,330 179 160 <6.5 <10.8 <6.4 <6.5 <6.4 <7.3 <6.2 <1440 NR 130 NR <39.0 276 2210 567 <728 <185 <536 <8.6 <9.8 NR NR 12/04/2023 170 121 841 2,630 237 174 <1.1 NR NR NR <1.3 <1.6 1.9J <63.1 NR 125 NR <23.6 299 2,150 569 121J 24.2J <51.1 <0.86 <0.83 8.0 16.5 10/13/2014 <0.50 3.4 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 7/9/2015 <0.50 0.51 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 10/13/2014 479 22.6 13.8 1,150 274 18.9 <0.50 NR NR NR NR NR 4.8 NR NR 33.8 NR <2.0 20.4 405 29.6 NR NR NR NR NR NR NR 7/9/2015 873 28.7 20.9 2,990 296 170 <2.0 NR NR NR NR NR 5.9 NR NR 88.0 NR <8.0 65.6 1,310 89.8 NR NR NR NR NR NR NR 11/2/2016 1,600 18 <10 3,500 680 J 140 <10 NR NR NR NR NR 14 NR NR 150 NR <100 54 1,200 60 NR NR NR NR NR NR NR 4/7/2017 1,500 29 33 3,000 1,100 210 <12 NR NR NR NR NR 16 NR NR 110 NR <120 70 1,300 110 NR NR NR NR NR NR NR 12/21/2017 960 14 6.4 J 1,100 1,600 100 <10 NR NR NR NR NR 14 NR NR 29 J NR <100 13 310 17 J NR NR NR NR NR NR NR 4/20/2018 860 6.2 3.7 1,020 1,300 90 <1.2 NR NR NR NR NR 13 NR NR 36 NR <32 13 360 22 NR NR NR NR NR NR NR 11/8/2018 1,190 8.7 J <6.3 1,880 1,330 83.2 <6.3 NR NR NR NR NR 13.7 J NR NR 56.3 NR <50 21.3 J 584 36.9 NR NR NR NR NR NR NR 8/28/2019 912 9.3 J 6.4 J 1730 1010 79.9 <3.1 NR 10.1 J NR NR NR 7.8 J NR NR 49.6 3.6 J <5.0 30.3 834 82.0 NR NR NR NR NR NR NR 4/28/2020 648 7.5 4.7J 1,310 928 97.7 <2.5 NR <2.1 NR NR NR 7.7 NR NR 45.9 NR <15.0 <2.4 674 <2.3 NR NR NR NR NR NR NR 11/5/2020 446 6.6 3.9 899 688 71.5 NR NR NR NR <1.3 NR 5.6 NR <3.0 33.5 NR <7.5 <1.2 480 <1.1 268J NR NR NR NR NR NR 4/20/2021 359 9.7 4.1 1300 526 77.0 NR NR NR NR NR <361 4.5 <361 NR 40.0 NR <9.8 <1.7 920 <1.7 <182 54.1 <134 NR NR NR NR 12/1/2021 632 6.61 4.4J 1,260 1,230 91 <9.20 <2.20 <2.00 <2.00 <1.50 <1.50 9.35 <420 <3.80 48.3 2.98J <3.30 26.6 603 58.4 292 123 <16.0 NR NR NR NR 06/23/2022 620 15.8 7.8 1,790 686 135 <3.2 <5.4 <3.2 <3.2 <3.2 <3.6 7.1 <722 NR 70.5 NR <19.5 53.9 1,140 150 723J <92.5 342J <4.3 NR NR NR 04/03/2023 783 9.8 3.1J 1,468 1,070 105 <3.2 <5.4 <3.2 <3.2 <3.2 NR 9.2 <722 NR 52.1 NR 36.3 27.8 798 98.1 <364 112 <268 <4.3 8.9 NR NR 6/16/2023 725 4.9J <3.0 1,283 1,110 115 <3.2 <5.4 <3.2 <3.2 <3.2 <3.6 8.1 <722 NR 45.6 NR <19.5 19.9 625 60.9 <364 126 <268 <4.3 <4.9 NR NR 12/05/2023 840 3.8J 3.8J 1,182 1,410 101 <0.86 NR NR NR <1.1 <1.3 11.5 <50.5 NR 47.1 NR <18.9 19.3 544 52.4 446J 157 <40.9 0.80J 9.2 3.1J <1.7 10/13/2014 <0.50 9.2 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 7/9/2015 <0.50 5.0 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 10/13/2014 <0.50 2.7 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 7/9/2015 <0.50 1.0 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR MW-10 MW-13 MW-16 MW-15 MW-14 MW-11 MW-12 Page 3 of 4 Table B-4B: Summary of Historical Groundwater Sampling Results Revision Date: 7/5/22 Incident Number and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes, TotalMethyl-tert-butyl etherNaphthalenetert-Butyl benzeneChloromethane(Methyl Chloride)2-Chlorotoluene4-Chlorotoluene1,2-Dichloroethanetrans-13-DichloropropeneDiisopropyl etherEthanol2-HexanoneIsopropylbenzenep-Isopropyl toluene (p-Cymene)Methylene Chloriden-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenetert-Amyl Alcoholtert-Amylmethyl ethertert-Butyl Alcohol (TBA)Chloroformn-Butylbenzenesec-Butylbenzene1,2,3-Trichloropropane2L Standard 1 600 600 500 20 6 70 3 100 24 0.4 0.4 70 4,000 40 70 25 400 70 400 400 40 128 10 70 70 70 0.005 GCL 5,000 260,000 80,000 50,000 20,000 6,000 14,750 3,000 NE 24,000 400 400 70,000 4,000,000 40,000 30,500 11,700 400,000 26,100 28,500 24,100 40,000 128,000 10,000 70000 6900 8,800 N/A Analytical Method Standard Method 6200B 10/13/2014 <0.50 4.6 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 7/9/2015 <0.50 0.77 <0.50 <1.5 <0.50 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 2/27/2014 0.74 73.6 0.69 4.0 2.7 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 1.2 <0.50 NR NR NR NR NR NR NR 7/9/2015 <0.50 5.8 <0.50 <1.5 1.1 <2.0 <0.50 NR NR NR NR NR <0.50 NR NR <0.50 NR <2.0 <0.50 <0.50 <0.50 NR NR NR NR NR NR NR 12/05/2023 <0.079 <0.090 <0.081 <0.26J 0.21J 0.12J <0.086 NR NR NR <0.11 <0.13 <0.072 <5.0 NR <0.11 NR <1.9 <0.10 0.064J <0.071 <7.4 <0.12 <4.1 7.2 0.12J <0.085 <0.17 12/1/2021 <0.180 0.522 <0.170 0.702J 545 <0.470 <0.920 <0.220 <0.200 <0.200 <0.150 <0.150 2.14 <42.0 <0.380 <0.180 <0.089 <0.190 <0.190 <0.180 <1.90 10 <1.60 NR NR NR NR 06/23/2022 26.8 <0.48 <0.30 2.2 191 3.3 <0.32 <0.54 <0.32 <0.32 <0.32 <0.36 1.2 <72.2 NR 0.98 NR <2.0 <0.34 1.2 0.71 48.9J 11.1 38.6J 1.4 NR NR NR 04/03/2023 35.7 <0.24 <0.30 0.99 179 4.5 <0.32 <0.54 <0.32 <0.32 <0.32 NR 0.85 <72.2 NR <0.33 NR <2.0 <0.34 3.1 1.6 49.2J 10.9 <26.8 4.2 <0.49 NR NR 6/16/2023 17.2 <0.24 <0.30 NR 88.5 2.1 <0.32 <0.54 <0.32 <0.32 <0.32 <0.36 0.39J <72.2 NR <0.33 NR <2.0 <0.34 1.8 0.95 <36.4 <9.2 <26.8 4.1 <0.49 NR NR 12/04/2023 19.5 0.20J <0.081 0.78J 106 3.5 <0.086 NR NR NR <0.11 <0.13 0.60 <5.0 NR <0.11 NR <1.9 <0.10 2.4 1.6 33.5J 7.5J <4.1 4.4 <0.066 0.16J <0.17 12/1/2021 0.744 10.8 1.25 16.3 159 <0.470 <0.920 <0.220 <0.200 <0.200 <0.150 <0.150 1.19 <42.0 <0.380 0.213J <0.089 <0.330 0.328J 3.41 0.943 62.2 13.1 11.5 NR NR NR NR 06/23/2022 <0.34 0.71 <0.30 0.70J 2.6 <0.64 <0.32 <0.54 <0.32 <0.32 <0.32 <0.36 <0.31 <72.2 NR <0.33 NR <2.0 <0.34 0.50 0.43J <36.4 <9.2 <26.8 2.6 NR NR NR 04/03/2023 <0.34 <0.24 <0.30 <1.05 <0.42 <0.64 <0.32 <0.54 <0.32 <0.32 <0.32 NR <0.31 <72.2 NR <0.33 NR <2.0 <0.34 <0.50 <0.33 <36.4 <9.2 <26.8 4.7 <0.49 NR NR 6/16/2023 <0.34 <0.24 <0.30 NR 1.1 <0.64 <0.32 <0.54 <0.32 <0.32 <0.32 <0.36 <0.31 <72.2 NR <0.33 NR <2.0 <0.34 <0.50 <0.33 <36.4 <9.2 <26.8 3.4 <0.49 NR NR 12/04/2023 <0.079 0.27J <0.081 <0.41J 2.2 0.13J <0.086 NR NR NR <0.11 <0.13 <0.072 <5.0 NR <0.11 NR <1.9 <0.10 0.14J <0.071 <7.4 <0.12 <4.1 4.7 <0.066 <0.085 <0.17 Results in ug/L GCL = Gross Contamination Level Concentrations in bold exceeded the 2L Standard Concentrations in bold and italics exceeded the GCL J = Estimated Value NE = Not Established NA = Not Analyzed NR = Not Reported * Analyzed via EPA Method 602 AS-1 AS-2 MW-17 DMW-1 Page 4 of 4 Table B-6: Property Owners/Occupants Revision Date: 6/4/18 Incident Number and Name: 40256/Pantry 3957 Tax Parcel Identification Number (PIN) Owner Name Owner Address Property Address 3585938243 National Retail Properties LP 450 S. Orange Ave., Suite 900 Orlando, FL 32801 6441 Wilkinson Blvd SUBJECT SITE 3595033351 Generation III, LLC c/o Tilghman & Co. 27 Annette Dr, Suite 107 Benson, NC 27504 6501 Wilkinson Blvd 3595124249 Sisters of Our Lady of Mercy 100 Mercy Drive Belmont, NC 28012 500 Sacred Heart Circle 3595030040 Starrbelmont LP PO Box 2338 Cleveland, TN 37320 6450 Wilkinson Blvd 3595020814 Sisters of Our Lady of Mercy c/o Stanton Enterprise 125 E. Charlotte Ave. Mount Holly, NC 28120 505 N. Main St. 3585928912 CommunityOne Bank, N.A.PO Box 1328 Asheboro, NC 27204 6440 Wilkinson Blvd 3585924795 CNMAIN1 LLC & Others 275 Route 304 #700 Nanuet, NY 10954 6404 Wilkinson Blvd 3585934217 Alliance Real Estate III, Inc.PO Box 1787 Gastonia, NC 28053 6425 Wilkinson Blvd, A 3585939406 Georgoulias, Kostas F.609 N. Main St. Belmont, NC 28012 609 N. Main St. Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 8/23/2013 26.45 0.00 65.37 2/26/2014 24.88 0.00 66.94 10/13/2014 24.04 0.00 67.78 7/8/2015 23.80 0.00 68.02 8/31/2015 25.07 0.00 66.75 9/4/2015 25.38 0.00 66.44 3/3/2016 23.08 0.00 68.74 6/10/2016 22.91 0.00 68.91 11/2/2016 23.14 0.00 68.68 4/7/2017 22.39 0.00 69.43 12/21/2017 23.52 0.00 68.30 4/20/2018 23.99 0.00 67.83 10/29/2018 23.30 0.00 68.52 11/8/2018 23.51 0.00 68.31 8/28/2019 20.91 0.00 70.91 4/28/2020 19.77 0.00 72.05 11/5/2020 20.84 0.00 70.98 4/20/2021 18.83 0.00 72.99 12/2/2021 22.88 0.00 68.94 6/23/2022 23.21 0.00 68.61 4/3/2023 22.63 0.00 69.19 6/15/2023 21.81 0.00 70.01 12/4/2023 24.95 0.00 66.87 2/26/2014 25.74 0.00 66.96 10/13/2014 24.78 0.00 67.92 7/8/2015 24.50 0.00 68.20 92.703318-3318MW-2 2 MW-1 2 19 19-29 29 91.82 Page 1 of 9 Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 2/26/2014 23.17 0.15 66.98 5/27/2014 21.70 0.00 68.32 10/13/2014 22.32 0.00 67.70 7/8/2015 21.96 0.00 68.06 8/31/2015 23.47 0.32 66.82 9/4/2015 23.82 0.00 66.20 9/14/2015 23.82 0.00 66.20 1/25/2016 21.86 0.00 68.16 1/29/2016 22.10 0.00 67.92 3/3/2016 21.35 0.00 68.67 6/10/2016 21.16 0.00 68.86 11/2/2016 21.21 0.00 68.81 4/7/2017 20.46 0.00 69.56 12/21/2017 21.75 0.00 68.27 4/2/2018 22.05 0.00 67.97 4/20/2018 22.88 0.00 67.14 11/8/2018 21.73 0.00 68.29 8/28/2019 19.12 0.00 70.90 4/6/2020 17.96 0.00 72.06 4/10/2020 18.19 0.00 71.83 4/28/2020 17.98 0.00 72.04 11/5/2020 18.97 0.00 71.05 4/20/2021 17.15 0.00 72.87 11/1/2021 20.29 0.00 69.73 12/2/2021 21.39 0.00 68.63 6/23/2022 21.95 0.00 68.07 4/3/2023 20.69 0.00 69.33 5/15/2023 21.01 0.00 69.01 5/19/2023 20.61 0.00 69.41 6/15/2023 19.90 0.00 70.12 12/4/2023 23.94 0.00 66.08 MW-3 2 18 18-33 33 90.02 Page 2 of 9 Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 2/26/2014 23.74 0.00 66.98 10/13/2014 22.94 0.00 67.78 7/8/2015 22.61 0.00 68.11 8/31/2015 23.95 0.13 66.88 9/4/2015 24.38 0.15 66.47 3/3/2016 21.89 0.00 68.83 6/10/2016 21.76 0.00 68.96 11/2/2016 21.85 0.00 68.87 4/7/2017 21.10 0.00 69.62 12/21/2017 22.32 0.00 68.40 4/2/2018 22.71 0.00 68.01 4/20/2018 22.78 0.00 67.94 10/29/2018 22.20 0.00 68.52 11/8/2018 22.34 0.00 68.38 8/28/2019 19.74 0.00 70.98 4/6/2020 18.60 0.00 72.12 4/10/2020 18.82 0.00 71.90 4/28/2020 18.64 0.00 72.08 11/5/2020 19.55 0.00 71.17 3/29/2021 17.75 0.00 72.97 4/2/2021 18.06 0.00 72.66 4/20/2021 17.62 0.00 73.10 12/2/2021 21.55 0.00 69.17 6/23/2022 21.95 0.00 68.77 4/3/2023 21.40 0.00 69.32 6/15/2023 20.61 0.00 70.11 12/4/2023 23.75 0.00 66.97 2 18 18-33 33 90.72MW-4 Page 3 of 9 Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 2/26/2014 26.83 1.01 64.68 5/27/2014 22.93 0.47 68.11 10/13/2014 23.14 0.00 67.50 7/8/2015 22.79 0.00 67.85 8/31/2015 24.38 0.43 66.63 9/4/2015 26.68 0.00 63.96 9/14/2015 24.43 0.00 66.21 1/25/2016 22.46 0.00 68.18 1/29/2016 25.84 0.00 64.80 3/3/2016 22.12 0.00 68.52 6/10/2016 21.92 0.00 68.72 11/2/2016 22.22 0.00 68.42 4/7/2017 21.46 0.00 69.18 12/21/2017 22.49 0.00 68.15 4/2/2018 22.93 0.00 67.71 4/20/2018 23.00 0.00 67.64 11/8/2018 22.61 0.00 68.03 8/28/2019 19.94 0.00 70.70 4/28/2020 18.84 Sheen 71.80 11/5/2020 19.80 0.00 70.84 3/29/2021 17.94 0.00 72.70 4/2/2021 18.52 0.00 72.12 4/20/2021 17.90 0.00 72.74 11/1/2021 21.55 0.00 69.09 12/2/2021 21.63 0.00 69.01 6/23/2022 22.09 0.00 68.55 4/3/2023 21.64 0.00 69.00 5/15/2023 21.01 0.00 69.63 5/19/2023 29.30 0.00 61.34 6/15/2023 20.80 0.00 69.84 12/4/2023 23.09 0.00 67.55 MW-5 2 18 18-33 33 90.64 Page 4 of 9 Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 2/26/2014 24.41 2.50 69.30 5/27/2014 25.36 1.99 67.91 10/13/2014 23.90 0.06 67.71 7/8/2015 23.51 1.72 69.53 8/31/2015 26.14 1.18 66.43 9/4/2015 29.35 0.00 62.21 9/14/2015 25.68 0.00 65.88 3/3/2016 23.39 0.00 68.17 6/10/2016 23.20 0.00 68.36 11/2/2016 24.00 0.00 67.56 4/7/2017 23.38 0.00 68.18 12/21/2017 24.08 0.00 67.48 4/20/2018 24.43 0.00 67.13 11/8/2018 21.12 0.01 70.45 8/28/2019 21.33 0.00 70.23 4/28/2020 20.29 0.00 71.27 11/5/2020 21.18 0.00 70.38 4/20/2021 19.34 0.00 72.22 12/2/2021 23.47 0.00 68.09 6/23/2022 23.48 0.00 68.08 4/3/2023 23.15 0.00 68.41 5/15/2023 22.5 0.00 69.06 5/19/2023 22.5 0.00 69.06 6/15/2023 22.21 0.00 69.35 12/4/2023 25.32 0.02 66.26 2/26/2014 29.81 0.00 66.65 10/13/2014 28.81 0.00 67.65 7/8/2015 28.26 0.00 68.20 MW-6 2 18 18-33 33 91.56 18-33 96.4633182MW-7 Page 5 of 9 Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 5/27/2014 24.10 0.00 67.61 10/13/2014 24.77 0.05 66.98 7/8/2015 24.13 1.83 69.15 8/31/2015 27.09 1.78 66.15 9/4/2015 27.52 1.87 65.79 9/14/2015 27.62 1.75 65.59 1/25/2016 25.32 1.32 67.52 1/29/2016 27.25 0.00 64.46 3/3/2016 23.81 0.00 67.90 6/10/2016 23.61 0.00 68.10 11/2/2016 24.56 0.00 67.15 4/7/2017 23.98 0.00 67.73 12/21/2017 24.66 0.00 67.05 4/20/2018 24.88 0.00 66.83 11/8/2018 24.72 0.00 66.99 8/28/2019 21.78 0.00 69.93 4/28/2020 20.81 0.00 70.90 11/5/2020 21.72 0.00 69.99 4/20/2021 19.84 0.00 71.87 12/2/2021 23.84 0.00 67.87 6/23/2022 23.98 0.00 67.73 4/3/2023 23.6 0.00 68.11 6/15/2023 22.75 0.00 68.96 12/4/2023 25.73 0.00 65.98 5/27/2014 21.58 0.00 69.82 10/13/2014 22.38 0.00 69.02 7/8/2015 22.11 0.00 69.29 91.40332 MW-8 2 18 18-33 33 91.71 18-3318MW-9 Page 6 of 9 Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 5/27/2014 21.64 0.00 70.83 10/13/2014 22.38 0.00 70.09 7/8/2015 22.12 0.00 70.35 9/14/2015 23.79 0.00 68.68 3/3/2016 21.52 0.00 70.95 6/10/2016 21.37 0.00 71.10 11/2/2016 21.31 0.00 71.16 4/7/2017 20.54 0.00 71.93 12/21/2017 21.95 0.00 70.52 4/20/2018 22.23 0.00 70.24 10/29/2018 21.98 0.00 70.49 11/8/2018 21.91 0.00 70.56 8/28/2019 19.26 0.00 73.21 4/6/2020 18.10 0.00 74.37 4/10/2020 18.30 0.00 74.17 4/28/2020 18.11 0.00 74.36 11/5/2020 19.14 0.00 73.33 3/29/2021 17.26 0.00 75.21 4/2/2021 17.70 0.00 74.77 4/20/2021 17.13 0.00 75.34 11/1/2021 20.65 0.00 71.82 12/2/2021 21.35 0.00 71.12 6/23/2022 21.57 0.00 70.90 4/3/2023 20.79 0.00 71.68 5/15/2023 20.15 0.00 72.32 5/19/2023 20.15 0.00 72.32 6/15/2023 20.00 0.00 72.47 12/4/2023 23.25 0.00 69.22 5/27/2014 21.50 0.00 70.93 10/13/2014 22.21 0.00 70.22 7/8/2015 21.97 0.00 70.46 6/23/2022 21.22 0.00 71.21 6/15/2023 19.75 0.00 72.68 12/4/2023 12.05 0.00 80.38 MW-11 2 16 16-31 31 92.43 MW-10 2 18 18-33 33 92.47 Page 7 of 9 Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 5/27/2014 21.98 0.00 70.92 10/13/2014 22.62 0.00 70.28 7/8/2015 22.37 0.00 70.53 8/31/2015 23.64 0.00 69.26 9/4/2015 24.03 0.00 68.87 9/14/2015 24.02 0.00 68.88 3/3/2016 21.72 0.00 71.18 6/10/2016 21.52 0.00 71.38 11/2/2016 21.36 0.00 71.54 4/7/2017 20.57 0.00 72.33 12/21/2017 22.04 0.00 70.86 4/20/2018 22.45 0.00 70.45 11/8/2018 22.42 0.00 70.48 8/28/2019 19.45 0.00 73.45 4/28/2020 18.28 0.00 74.62 11/5/2020 19.28 0.00 73.62 4/20/2021 17.26 0.00 75.64 12/2/2021 22.28 0.00 70.62 6/23/2022 21.67 0.00 71.23 4/3/2023 21.03 0.00 71.87 6/15/2023 20.21 0.00 72.69 12/4/2023 23.46 0.00 69.44 10/13/2014 22.43 0.00 67.56 7/8/2015 22.21 0.00 67.78 92.90 89.99MW-13 2 15-3015 30 MW-12 2 12 12-27 27 Page 8 of 9 Table B-7: Monitoring Well Construction Information Revision Date: 12/13/21 Incident No. and Name: 40256/Pantry 3957 Facility ID #: 0-036103 Well ID Date GW Measured Casing Diameter (in.) Casing Depth (ft) Screened Interval Total Depth TOC Elevation* Depth to Water from TOC Free Product Thickness** Groundwater Elevation* 10/13/2014 21.61 0.00 66.51 7/8/2015 21.42 0.00 66.70 11/2/2016 21.71 0.00 66.41 4/7/2017 21.02 0.00 67.10 12/21/2017 21.73 0.00 66.39 4/20/2018 21.70 0.00 66.42 11/8/2018 21.60 0.00 66.52 8/28/2019 18.67 0.00 69.45 4/28/2020 17.89 0.00 70.23 11/5/2020 18.56 0.00 69.56 4/20/2021 17.61 0.00 70.51 12/2/2021 22.17 0.00 65.95 6/23/2022 20.78 0.00 67.34 4/3/2023 20.15 0.00 67.97 6/15/2023 19.36 0.00 68.76 12/4/2023 22.55 0.00 65.57 10/13/2014 27.58 0.00 67.09 7/8/2015 27.23 0.00 67.44 10/13/2014 30.74 0.00 65.02 7/8/2015 30.62 0.00 65.14 10/13/2014 29.44 0.00 62.57 7/8/2015 29.14 0.00 62.87 2/26/2014 25.45 0.00 66.83 10/13/2014 24.54 0.00 67.74 7/8/2015 24.16 0.00 68.12 12/4/2023 26.50 0.00 65.78 11/1/2021 20.65 0.00 69.35 12/1/2021 21.23 0.00 68.77 6/23/2022 21.44 0.00 68.56 4/3/2023 20.72 0.00 69.28 5/15/2023 20.15 0.00 69.85 5/19/2023 20.15 0.00 69.85 6/15/2023 20.00 0.00 70.00 12/4/2023 23.25 0.00 66.75 11/1/2021 20.70 0.00 69.44 12/1/2021 21.08 0.00 69.06 6/23/2022 21.30 0.00 68.84 4/3/2023 20.62 0.00 69.52 5/15/2023 20.01 0.00 70.13 5/19/2023 20.01 0.00 70.13 6/15/2023 19.83 0.00 70.31 12/4/2023 23.11 0.00 67.03 TOC = Top of Casing * All measurements are feet Below Ground Surface (ft. BGS). NS = Not Surveyed DO = Dissolved Oxygen 90.00 AS-2 2 30.0 30-32.5 32.5 90.14 MW-14 2 15 15-30 30 88.12 DMW-1 2 47.5 47.5-50 50 92.28 92.0133 3318-33182 95.763318-33182 94.67 AS-1 2 35.0 35-40 40 18-33182MW-17 MW-16 MW-15 Page 9 of 9 FIGURES PROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE PROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILECAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272 Dispenser CanopyUSTPitSouth Fork StreetWilkinson BoulevardMW-17Grass/PlantingAreaMW-16MW-14MW-9MW-15MW-8MW-7MW-6MW-2MW-1MW-4MW-3MW-12MW-5DMW-1MW-11MW-10MW-13Pantry 3957StoreAS-2AS-1CARWASHPROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE Type II Monitoring WellType III Monitoring WellLEGENDPROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILECAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272Air Sparge Well Dispenser CanopyUSTPitSouth Fork StreetWilkinson BoulevardMW-17MW-16MW-14MW-9MW-15MW-8MW-7MW-6MW-2MW-1MW-4MW-3MW-12MW-5DMW-1MW-11MW-10MW-13Pantry 3957StoreAS-2AS-1CARWASHPROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE Type II Monitoring WellType III Monitoring WellLEGEND1.Groundwater levels measured on 12/04/2023 2.Well AS-2 not used for groundwater elevation contours PROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILECAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272Groundwater Elevation(In Feet)Groundwater ElevationContour LineGroundwater FlowDirection68.3166.87Not MeasuredNM6 8 . 0 Air Sparge Well65.5765.9866.2467.5566.9769.44NMNMNMNM[65.78]NMNM[67.03][66.75]NM69.38Groundwater ElevationNot Used In Contouring[68.31]69.2269 . 0 6 7 . 0 6 6 .0 67. 0 66.08 Dispenser CanopyUSTPitSouth Fork StreetWilkinson BoulevardMW-17MW-16MW-14MW-9MW-15MW-8MW-7MW-6MW-2MW-1MW-4MW-3MW-12MW-5DMW-1MW-11MW-10MW-13Pantry 3957StoreAS-2AS-1CARWASHPROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE Type II Monitoring WellType III Monitoring WellLEGEND1. Groundwater samples collected on 04/03/2023.& 04/05/2023 2. Concentrations reported in ug/L 3. Concentrations shown exceed 2L standards PROJECT NO. NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILECAD FILE PREP. BYTYPE CODE REV. BY SCALE PROJECT NO. TITLE DATE Charlotte, North Carolina 28273 (704) 529-3200 FAX (704) 529-3272NSNot sampledNSAir Sparge WellNSNSNSNSNSNSNSNS LABORATORY ANALYTICAL REPORT APPENDIX A #=CL# December 12, 2023 LIMS USE: FR - NOELLE FRANCE LIMS OBJECT ID: 92701721 92701721 Project: Pace Project No.: RE: Noelle France ATC Group Services LLC- South Charlotte 7606 Whitehall Exe Center Dr Suite 800 Charlotte, NC 28273 GWQS CK 3957 GASTONIA NC Dear Noelle France: Enclosed are the analytical results for sample(s) received by the laboratory on December 05, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Taylor M Cannon taylor.cannon@pacelabs.com Project Manager 704-977-0943 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 57 #=CP# CERTIFICATIONS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 57 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Lab ID Sample ID Matrix Date Collected Date Received 92701721001 MW-1 Water 12/05/23 11:00 12/05/23 13:00 92701721002 MW-3 Water 12/04/23 12:40 12/05/23 13:00 92701721003 MW-5 Water 12/05/23 12:00 12/05/23 13:00 92701721004 MW-8 Water 12/05/23 11:20 12/05/23 13:00 92701721005 MW-10 Water 12/04/23 12:15 12/05/23 13:00 92701721006 MW-11 Water 12/04/23 13:40 12/05/23 13:00 92701721007 MW-12 Water 12/04/23 13:45 12/05/23 13:00 92701721008 MW-14 Water 12/05/23 09:50 12/05/23 13:00 92701721009 AS-1 Water 12/04/23 11:30 12/05/23 13:00 92701721010 AS-2 Water 12/04/23 11:20 12/05/23 13:00 92701721011 DMW-1 Water 12/05/23 09:35 12/05/23 13:00 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 57 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92701721001 MW-1 SM 6200B 69 PASI-CJJK 92701721002 MW-3 SM 6200B 69 PASI-CJJK 92701721003 MW-5 SM 6200B 69 PASI-CJJK 92701721004 MW-8 SM 6200B 69 PASI-CSAS 92701721005 MW-10 SM 6200B 69 PASI-CJJK 92701721006 MW-11 SM 6200B 69 PASI-CJJK 92701721007 MW-12 SM 6200B 69 PASI-CJJK 92701721008 MW-14 SM 6200B 69 PASI-CJJK 92701721009 AS-1 SM 6200B 69 PASI-CJJK 92701721010 AS-2 SM 6200B 69 PASI-CJJK 92701721011 DMW-1 SM 6200B 69 PASI-CJJK PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-1 Lab ID:92701721001 Collected:12/05/23 11:00 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <930 ug/L 12/11/23 20:25 75-85-412500930125 tert-Amylmethyl ether <15.5 ug/L 12/11/23 20:25 994-05-8125015.5 125 Benzene 124 ug/L 12/11/23 20:25 71-43-262.5 9.8 125 Bromobenzene <16.9 ug/L 12/11/23 20:25 108-86-162.5 16.9 125 Bromochloromethane <11.8 ug/L 12/11/23 20:25 74-97-562.5 11.8 125 Bromodichloromethane <21.2 ug/L 12/11/23 20:25 75-27-462.5 21.2 125 Bromoform <24.6 ug/L 12/11/23 20:25 75-25-262.5 24.6 125 Bromomethane <27.8 ug/L 12/11/23 20:25 74-83-962527.8 125 tert-Butyl Alcohol <511 ug/L 12/11/23 20:25 75-65-06250511125 n-Butylbenzene <8.3 ug/L 12/11/23 20:25 104-51-862.5 8.3 125 sec-Butylbenzene <10.6 ug/L 12/11/23 20:25 135-98-862.5 10.6 125 tert-Butylbenzene <10.7 ug/L 12/11/23 20:25 98-06-662.5 10.7 125 tert-Butyl Formate <37.5 ug/L 12/11/23 20:25 762-75-4625037.5 125 Carbon tetrachloride <21.1 ug/L 12/11/23 20:25 56-23-562.5 21.1 125 Chlorobenzene <10.6 ug/L 12/11/23 20:25 108-90-762.5 10.6 125 Chloroethane <21.6 ug/L 12/11/23 20:25 75-00-312521.6 125 Chloroform <8.6 ug/L 12/11/23 20:25 67-66-362.5 8.6 125 Chloromethane <21.9 ug/L 12/11/23 20:25 74-87-312521.9 125 2-Chlorotoluene <16.1 ug/L 12/11/23 20:25 95-49-862.5 16.1 125 4-Chlorotoluene <12.0 ug/L 12/11/23 20:25 106-43-462.5 12.0 125 1,2-Dibromo-3-chloropropane <22.4 ug/L 12/11/23 20:25 96-12-812522.4 125 Dibromochloromethane <18.5 ug/L 12/11/23 20:25 124-48-162.5 18.5 125 1,2-Dibromoethane (EDB)<18.4 ug/L 12/11/23 20:25 106-93-462.5 18.4 125 Dibromomethane <23.4 ug/L 12/11/23 20:25 74-95-362.5 23.4 125 1,2-Dichlorobenzene <11.8 ug/L 12/11/23 20:25 95-50-162.5 11.8 125 1,3-Dichlorobenzene <12.2 ug/L 12/11/23 20:25 541-73-162.5 12.2 125 1,4-Dichlorobenzene <11.2 ug/L 12/11/23 20:25 106-46-762.5 11.2 125 Dichlorodifluoromethane <15.4 ug/L 12/11/23 20:25 75-71-862.5 15.4 125 1,1-Dichloroethane <7.0 ug/L 12/11/23 20:25 75-34-362.5 7.0 125 1,2-Dichloroethane <13.2 ug/L 12/11/23 20:25 107-06-262.5 13.2 125 1,1-Dichloroethene <9.8 ug/L 12/11/23 20:25 75-35-462.5 9.8 125 cis-1,2-Dichloroethene <13.9 ug/L 12/11/23 20:25 156-59-262.5 13.9 125 trans-1,2-Dichloroethene <12.6 ug/L 12/11/23 20:25 156-60-562.5 12.6 125 1,2-Dichloropropane <17.0 ug/L 12/11/23 20:25 78-87-562.5 17.0 125 1,3-Dichloropropane <10.7 ug/L 12/11/23 20:25 142-28-962.5 10.7 125 2,2-Dichloropropane <15.2 ug/L 12/11/23 20:25 594-20-762.5 15.2 125 1,1-Dichloropropene <8.2 ug/L 12/11/23 20:25 563-58-662.5 8.2 125 cis-1,3-Dichloropropene <11.2 ug/L 12/11/23 20:25 10061-01-562.5 11.2 125 trans-1,3-Dichloropropene <16.5 ug/L 12/11/23 20:25 10061-02-662.5 16.5 125 Diisopropyl ether <9.1 ug/L 12/11/23 20:25 108-20-362.5 9.1 125 Ethanol <631 ug/L 12/11/23 20:25 64-17-525000631125 Ethylbenzene 290 ug/L 12/11/23 20:25 100-41-462.5 10.2 125 Ethyl-tert-butyl ether <14.0 ug/L 12/11/23 20:25 637-92-3125014.0 125 Hexachloro-1,3-butadiene <43.9 ug/L 12/11/23 20:25 87-68-325043.9 125 Isopropylbenzene (Cumene)73.1 ug/L 12/11/23 20:25 98-82-862.5 13.2 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-1 Lab ID:92701721001 Collected:12/05/23 11:00 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <236 ug/L 12/11/23 20:25 75-09-2250236125 Methyl-tert-butyl ether <6.7 ug/L 12/11/23 20:25 1634-04-462.5 6.7 125 Naphthalene 60.3J ug/L 12/11/23 20:25 91-20-3 C825012.6 125 n-Propylbenzene 52.1J ug/L 12/11/23 20:25 103-65-162.5 13.1 125 Styrene <17.1 ug/L 12/11/23 20:25 100-42-562.5 17.1 125 1,1,1,2-Tetrachloroethane <11.4 ug/L 12/11/23 20:25 630-20-662.5 11.4 125 1,1,2,2-Tetrachloroethane <9.2 ug/L 12/11/23 20:25 79-34-562.5 9.2 125 Tetrachloroethene <10.7 ug/L 12/11/23 20:25 127-18-462.5 10.7 125 Toluene 21800 ug/L 12/11/23 20:25 108-88-362.5 11.2 125 1,2,3-Trichlorobenzene <15.1 ug/L 12/11/23 20:25 87-61-625015.1 125 1,2,4-Trichlorobenzene <19.5 ug/L 12/11/23 20:25 120-82-125019.5 125 1,1,1-Trichloroethane <13.4 ug/L 12/11/23 20:25 71-55-662.5 13.4 125 1,1,2-Trichloroethane <12.0 ug/L 12/11/23 20:25 79-00-562.5 12.0 125 Trichloroethene <21.4 ug/L 12/11/23 20:25 79-01-662.5 21.4 125 Trichlorofluoromethane <18.0 ug/L 12/11/23 20:25 75-69-412518.0 125 1,2,3-Trichloropropane <21.6 ug/L 12/11/23 20:25 96-18-462.5 21.6 125 1,2,4-Trimethylbenzene 310 ug/L 12/11/23 20:25 95-63-662.5 3.8 125 1,3,5-Trimethylbenzene 92.7 ug/L 12/11/23 20:25 108-67-862.5 8.9 125 Vinyl chloride <18.6 ug/L 12/11/23 20:25 75-01-412518.6 125 m&p-Xylene 387 ug/L 12/11/23 20:25 179601-23-112511.7 125 o-Xylene 250 ug/L 12/11/23 20:25 95-47-662.5 18.0 125 Surrogates 1,2-Dichloroethane-d4 (S)101 %12/11/23 20:25 17060-07-070-130 125 4-Bromofluorobenzene (S)98 %12/11/23 20:25 460-00-470-130 125 Toluene-d8 (S)101 %12/11/23 20:25 2037-26-570-130 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-3 Lab ID:92701721002 Collected:12/04/23 12:40 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 5200J ug/L 12/06/23 21:33 75-85-412500930125 tert-Amylmethyl ether 625J ug/L 12/06/23 21:33 994-05-8125015.5 125 Benzene 1760 ug/L 12/06/23 21:33 71-43-262.5 9.8 125 Bromobenzene <16.9 ug/L 12/06/23 21:33 108-86-162.5 16.9 125 Bromochloromethane <11.8 ug/L 12/06/23 21:33 74-97-562.5 11.8 125 Bromodichloromethane <21.2 ug/L 12/06/23 21:33 75-27-462.5 21.2 125 Bromoform <24.6 ug/L 12/06/23 21:33 75-25-262.5 24.6 125 Bromomethane <27.8 ug/L 12/06/23 21:33 74-83-962527.8 125 tert-Butyl Alcohol <511 ug/L 12/06/23 21:33 75-65-06250511125 n-Butylbenzene <8.3 ug/L 12/06/23 21:33 104-51-862.5 8.3 125 sec-Butylbenzene <10.6 ug/L 12/06/23 21:33 135-98-862.5 10.6 125 tert-Butylbenzene <10.7 ug/L 12/06/23 21:33 98-06-662.5 10.7 125 tert-Butyl Formate <37.5 ug/L 12/06/23 21:33 762-75-4625037.5 125 Carbon tetrachloride <21.1 ug/L 12/06/23 21:33 56-23-562.5 21.1 125 Chlorobenzene <10.6 ug/L 12/06/23 21:33 108-90-762.5 10.6 125 Chloroethane <21.6 ug/L 12/06/23 21:33 75-00-312521.6 125 Chloroform <8.6 ug/L 12/06/23 21:33 67-66-362.5 8.6 125 Chloromethane <21.9 ug/L 12/06/23 21:33 74-87-312521.9 125 2-Chlorotoluene <16.1 ug/L 12/06/23 21:33 95-49-862.5 16.1 125 4-Chlorotoluene <12.0 ug/L 12/06/23 21:33 106-43-462.5 12.0 125 1,2-Dibromo-3-chloropropane <22.4 ug/L 12/06/23 21:33 96-12-812522.4 125 Dibromochloromethane <18.5 ug/L 12/06/23 21:33 124-48-162.5 18.5 125 1,2-Dibromoethane (EDB)<18.4 ug/L 12/06/23 21:33 106-93-462.5 18.4 125 Dibromomethane <23.4 ug/L 12/06/23 21:33 74-95-362.5 23.4 125 1,2-Dichlorobenzene <11.8 ug/L 12/06/23 21:33 95-50-162.5 11.8 125 1,3-Dichlorobenzene <12.2 ug/L 12/06/23 21:33 541-73-162.5 12.2 125 1,4-Dichlorobenzene <11.2 ug/L 12/06/23 21:33 106-46-762.5 11.2 125 Dichlorodifluoromethane <15.4 ug/L 12/06/23 21:33 75-71-862.5 15.4 125 1,1-Dichloroethane <7.0 ug/L 12/06/23 21:33 75-34-362.5 7.0 125 1,2-Dichloroethane <13.2 ug/L 12/06/23 21:33 107-06-262.5 13.2 125 1,1-Dichloroethene <9.8 ug/L 12/06/23 21:33 75-35-462.5 9.8 125 cis-1,2-Dichloroethene <13.9 ug/L 12/06/23 21:33 156-59-262.5 13.9 125 trans-1,2-Dichloroethene <12.6 ug/L 12/06/23 21:33 156-60-562.5 12.6 125 1,2-Dichloropropane <17.0 ug/L 12/06/23 21:33 78-87-562.5 17.0 125 1,3-Dichloropropane <10.7 ug/L 12/06/23 21:33 142-28-962.5 10.7 125 2,2-Dichloropropane <15.2 ug/L 12/06/23 21:33 594-20-762.5 15.2 125 1,1-Dichloropropene <8.2 ug/L 12/06/23 21:33 563-58-662.5 8.2 125 cis-1,3-Dichloropropene <11.2 ug/L 12/06/23 21:33 10061-01-562.5 11.2 125 trans-1,3-Dichloropropene <16.5 ug/L 12/06/23 21:33 10061-02-662.5 16.5 125 Diisopropyl ether 50.6J ug/L 12/06/23 21:33 108-20-362.5 9.1 125 Ethanol <631 ug/L 12/06/23 21:33 64-17-525000631125 Ethylbenzene 787 ug/L 12/06/23 21:33 100-41-462.5 10.2 125 Ethyl-tert-butyl ether 24.0J ug/L 12/06/23 21:33 637-92-3125014.0 125 Hexachloro-1,3-butadiene <43.9 ug/L 12/06/23 21:33 87-68-325043.9 125 Isopropylbenzene (Cumene)65.5 ug/L 12/06/23 21:33 98-82-862.5 13.2 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-3 Lab ID:92701721002 Collected:12/04/23 12:40 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <236 ug/L 12/06/23 21:33 75-09-2250236125 Methyl-tert-butyl ether 15300 ug/L 12/06/23 21:33 1634-04-462.5 6.7 125 Naphthalene 89.1J ug/L 12/06/23 21:33 91-20-325012.6 125 n-Propylbenzene 71.5 ug/L 12/06/23 21:33 103-65-162.5 13.1 125 Styrene <17.1 ug/L 12/06/23 21:33 100-42-562.5 17.1 125 1,1,1,2-Tetrachloroethane <11.4 ug/L 12/06/23 21:33 630-20-662.5 11.4 125 1,1,2,2-Tetrachloroethane <9.2 ug/L 12/06/23 21:33 79-34-562.5 9.2 125 Tetrachloroethene <10.7 ug/L 12/06/23 21:33 127-18-462.5 10.7 125 Toluene 2630 ug/L 12/06/23 21:33 108-88-362.5 11.2 125 1,2,3-Trichlorobenzene <15.1 ug/L 12/06/23 21:33 87-61-625015.1 125 1,2,4-Trichlorobenzene <19.5 ug/L 12/06/23 21:33 120-82-125019.5 125 1,1,1-Trichloroethane <13.4 ug/L 12/06/23 21:33 71-55-662.5 13.4 125 1,1,2-Trichloroethane <12.0 ug/L 12/06/23 21:33 79-00-562.5 12.0 125 Trichloroethene <21.4 ug/L 12/06/23 21:33 79-01-662.5 21.4 125 Trichlorofluoromethane <18.0 ug/L 12/06/23 21:33 75-69-412518.0 125 1,2,3-Trichloropropane <21.6 ug/L 12/06/23 21:33 96-18-462.5 21.6 125 1,2,4-Trimethylbenzene 531 ug/L 12/06/23 21:33 95-63-662.5 3.8 125 1,3,5-Trimethylbenzene 132 ug/L 12/06/23 21:33 108-67-862.5 8.9 125 Vinyl chloride <18.6 ug/L 12/06/23 21:33 75-01-412518.6 125 m&p-Xylene 2580 ug/L 12/06/23 21:33 179601-23-112511.7 125 o-Xylene 804 ug/L 12/06/23 21:33 95-47-662.5 18.0 125 Surrogates 1,2-Dichloroethane-d4 (S)98 %12/06/23 21:33 17060-07-070-130 125 4-Bromofluorobenzene (S)100 %12/06/23 21:33 460-00-470-130 125 Toluene-d8 (S)99 %12/06/23 21:33 2037-26-570-130 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-5 Lab ID:92701721003 Collected:12/05/23 12:00 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <930 ug/L 12/06/23 20:57 75-85-412500930125 tert-Amylmethyl ether <15.5 ug/L 12/06/23 20:57 994-05-8125015.5 125 Benzene 22.8J ug/L 12/06/23 20:57 71-43-262.5 9.8 125 Bromobenzene <16.9 ug/L 12/06/23 20:57 108-86-162.5 16.9 125 Bromochloromethane <11.8 ug/L 12/06/23 20:57 74-97-562.5 11.8 125 Bromodichloromethane <21.2 ug/L 12/06/23 20:57 75-27-462.5 21.2 125 Bromoform <24.6 ug/L 12/06/23 20:57 75-25-262.5 24.6 125 Bromomethane <27.8 ug/L 12/06/23 20:57 74-83-962527.8 125 tert-Butyl Alcohol <511 ug/L 12/06/23 20:57 75-65-06250511125 n-Butylbenzene <8.3 ug/L 12/06/23 20:57 104-51-862.5 8.3 125 sec-Butylbenzene <10.6 ug/L 12/06/23 20:57 135-98-862.5 10.6 125 tert-Butylbenzene <10.7 ug/L 12/06/23 20:57 98-06-662.5 10.7 125 tert-Butyl Formate <37.5 ug/L 12/06/23 20:57 762-75-4625037.5 125 Carbon tetrachloride <21.1 ug/L 12/06/23 20:57 56-23-562.5 21.1 125 Chlorobenzene <10.6 ug/L 12/06/23 20:57 108-90-762.5 10.6 125 Chloroethane <21.6 ug/L 12/06/23 20:57 75-00-312521.6 125 Chloroform <8.6 ug/L 12/06/23 20:57 67-66-362.5 8.6 125 Chloromethane <21.9 ug/L 12/06/23 20:57 74-87-312521.9 125 2-Chlorotoluene <16.1 ug/L 12/06/23 20:57 95-49-862.5 16.1 125 4-Chlorotoluene <12.0 ug/L 12/06/23 20:57 106-43-462.5 12.0 125 1,2-Dibromo-3-chloropropane <22.4 ug/L 12/06/23 20:57 96-12-812522.4 125 Dibromochloromethane <18.5 ug/L 12/06/23 20:57 124-48-162.5 18.5 125 1,2-Dibromoethane (EDB)<18.4 ug/L 12/06/23 20:57 106-93-462.5 18.4 125 Dibromomethane <23.4 ug/L 12/06/23 20:57 74-95-362.5 23.4 125 1,2-Dichlorobenzene <11.8 ug/L 12/06/23 20:57 95-50-162.5 11.8 125 1,3-Dichlorobenzene <12.2 ug/L 12/06/23 20:57 541-73-162.5 12.2 125 1,4-Dichlorobenzene <11.2 ug/L 12/06/23 20:57 106-46-762.5 11.2 125 Dichlorodifluoromethane <15.4 ug/L 12/06/23 20:57 75-71-862.5 15.4 125 1,1-Dichloroethane <7.0 ug/L 12/06/23 20:57 75-34-362.5 7.0 125 1,2-Dichloroethane <13.2 ug/L 12/06/23 20:57 107-06-262.5 13.2 125 1,1-Dichloroethene <9.8 ug/L 12/06/23 20:57 75-35-462.5 9.8 125 cis-1,2-Dichloroethene <13.9 ug/L 12/06/23 20:57 156-59-262.5 13.9 125 trans-1,2-Dichloroethene <12.6 ug/L 12/06/23 20:57 156-60-562.5 12.6 125 1,2-Dichloropropane <17.0 ug/L 12/06/23 20:57 78-87-562.5 17.0 125 1,3-Dichloropropane <10.7 ug/L 12/06/23 20:57 142-28-962.5 10.7 125 2,2-Dichloropropane <15.2 ug/L 12/06/23 20:57 594-20-762.5 15.2 125 1,1-Dichloropropene <8.2 ug/L 12/06/23 20:57 563-58-662.5 8.2 125 cis-1,3-Dichloropropene <11.2 ug/L 12/06/23 20:57 10061-01-562.5 11.2 125 trans-1,3-Dichloropropene <16.5 ug/L 12/06/23 20:57 10061-02-662.5 16.5 125 Diisopropyl ether <9.1 ug/L 12/06/23 20:57 108-20-362.5 9.1 125 Ethanol <631 ug/L 12/06/23 20:57 64-17-525000631125 Ethylbenzene 361 ug/L 12/06/23 20:57 100-41-462.5 10.2 125 Ethyl-tert-butyl ether <14.0 ug/L 12/06/23 20:57 637-92-3125014.0 125 Hexachloro-1,3-butadiene <43.9 ug/L 12/06/23 20:57 87-68-325043.9 125 Isopropylbenzene (Cumene)105 ug/L 12/06/23 20:57 98-82-862.5 13.2 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-5 Lab ID:92701721003 Collected:12/05/23 12:00 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <236 ug/L 12/06/23 20:57 75-09-2250236125 Methyl-tert-butyl ether <6.7 ug/L 12/06/23 20:57 1634-04-462.5 6.7 125 Naphthalene 133J ug/L 12/06/23 20:57 91-20-3 C825012.6 125 n-Propylbenzene 80.3 ug/L 12/06/23 20:57 103-65-162.5 13.1 125 Styrene <17.1 ug/L 12/06/23 20:57 100-42-562.5 17.1 125 1,1,1,2-Tetrachloroethane <11.4 ug/L 12/06/23 20:57 630-20-662.5 11.4 125 1,1,2,2-Tetrachloroethane <9.2 ug/L 12/06/23 20:57 79-34-562.5 9.2 125 Tetrachloroethene <10.7 ug/L 12/06/23 20:57 127-18-462.5 10.7 125 Toluene 13000 ug/L 12/06/23 20:57 108-88-362.5 11.2 125 1,2,3-Trichlorobenzene <15.1 ug/L 12/06/23 20:57 87-61-625015.1 125 1,2,4-Trichlorobenzene <19.5 ug/L 12/06/23 20:57 120-82-125019.5 125 1,1,1-Trichloroethane <13.4 ug/L 12/06/23 20:57 71-55-662.5 13.4 125 1,1,2-Trichloroethane <12.0 ug/L 12/06/23 20:57 79-00-562.5 12.0 125 Trichloroethene <21.4 ug/L 12/06/23 20:57 79-01-662.5 21.4 125 Trichlorofluoromethane <18.0 ug/L 12/06/23 20:57 75-69-412518.0 125 1,2,3-Trichloropropane <21.6 ug/L 12/06/23 20:57 96-18-462.5 21.6 125 1,2,4-Trimethylbenzene 501 ug/L 12/06/23 20:57 95-63-662.5 3.8 125 1,3,5-Trimethylbenzene 131 ug/L 12/06/23 20:57 108-67-862.5 8.9 125 Vinyl chloride <18.6 ug/L 12/06/23 20:57 75-01-412518.6 125 m&p-Xylene 504 ug/L 12/06/23 20:57 179601-23-112511.7 125 o-Xylene 413 ug/L 12/06/23 20:57 95-47-662.5 18.0 125 Surrogates 1,2-Dichloroethane-d4 (S)99 %12/06/23 20:57 17060-07-070-130 125 4-Bromofluorobenzene (S)100 %12/06/23 20:57 460-00-470-130 125 Toluene-d8 (S)99 %12/06/23 20:57 2037-26-570-130 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-8 Lab ID:92701721004 Collected:12/05/23 11:20 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <2980 ug/L 12/09/23 05:44 75-85-4400002980400 tert-Amylmethyl ether <49.6 ug/L 12/09/23 05:44 994-05-8400049.6 400 Benzene 690 ug/L 12/09/23 05:44 71-43-220031.4 400 Bromobenzene <54.0 ug/L 12/09/23 05:44 108-86-120054.0 400 Bromochloromethane <37.8 ug/L 12/09/23 05:44 74-97-520037.8 400 Bromodichloromethane <68.0 ug/L 12/09/23 05:44 75-27-420068.0 400 Bromoform <78.8 ug/L 12/09/23 05:44 75-25-220078.8 400 Bromomethane <88.8 ug/L 12/09/23 05:44 74-83-9200088.8 400 tert-Butyl Alcohol <1640 ug/L 12/09/23 05:44 75-65-0200001640400 n-Butylbenzene <26.6 ug/L 12/09/23 05:44 104-51-820026.6 400 sec-Butylbenzene <34.0 ug/L 12/09/23 05:44 135-98-820034.0 400 tert-Butylbenzene <34.2 ug/L 12/09/23 05:44 98-06-620034.2 400 tert-Butyl Formate <120 ug/L 12/09/23 05:44 762-75-420000120400 Carbon tetrachloride <67.6 ug/L 12/09/23 05:44 56-23-520067.6 400 Chlorobenzene <33.8 ug/L 12/09/23 05:44 108-90-720033.8 400 Chloroethane <69.2 ug/L 12/09/23 05:44 75-00-340069.2 400 Chloroform <27.7 ug/L 12/09/23 05:44 67-66-320027.7 400 Chloromethane <70.0 ug/L 12/09/23 05:44 74-87-340070.0 400 2-Chlorotoluene <51.6 ug/L 12/09/23 05:44 95-49-820051.6 400 4-Chlorotoluene <38.2 ug/L 12/09/23 05:44 106-43-420038.2 400 1,2-Dibromo-3-chloropropane <71.6 ug/L 12/09/23 05:44 96-12-840071.6 400 Dibromochloromethane <59.2 ug/L 12/09/23 05:44 124-48-120059.2 400 1,2-Dibromoethane (EDB)<58.8 ug/L 12/09/23 05:44 106-93-420058.8 400 Dibromomethane <74.8 ug/L 12/09/23 05:44 74-95-320074.8 400 1,2-Dichlorobenzene <37.6 ug/L 12/09/23 05:44 95-50-120037.6 400 1,3-Dichlorobenzene <39.2 ug/L 12/09/23 05:44 541-73-120039.2 400 1,4-Dichlorobenzene <35.9 ug/L 12/09/23 05:44 106-46-720035.9 400 Dichlorodifluoromethane <49.2 ug/L 12/09/23 05:44 75-71-820049.2 400 1,1-Dichloroethane <22.4 ug/L 12/09/23 05:44 75-34-320022.4 400 1,2-Dichloroethane <42.4 ug/L 12/09/23 05:44 107-06-220042.4 400 1,1-Dichloroethene <31.5 ug/L 12/09/23 05:44 75-35-420031.5 400 cis-1,2-Dichloroethene <44.4 ug/L 12/09/23 05:44 156-59-220044.4 400 trans-1,2-Dichloroethene <40.4 ug/L 12/09/23 05:44 156-60-520040.4 400 1,2-Dichloropropane <54.4 ug/L 12/09/23 05:44 78-87-520054.4 400 1,3-Dichloropropane <34.2 ug/L 12/09/23 05:44 142-28-920034.2 400 2,2-Dichloropropane <48.8 ug/L 12/09/23 05:44 594-20-720048.8 400 1,1-Dichloropropene <26.4 ug/L 12/09/23 05:44 563-58-620026.4 400 cis-1,3-Dichloropropene <35.8 ug/L 12/09/23 05:44 10061-01-520035.8 400 trans-1,3-Dichloropropene <52.8 ug/L 12/09/23 05:44 10061-02-620052.8 400 Diisopropyl ether <29.0 ug/L 12/09/23 05:44 108-20-320029.0 400 Ethanol <2020 ug/L 12/09/23 05:44 64-17-5800002020400 Ethylbenzene 462 ug/L 12/09/23 05:44 100-41-420032.5 400 Ethyl-tert-butyl ether <44.8 ug/L 12/09/23 05:44 637-92-3400044.8 400 Hexachloro-1,3-butadiene <140 ug/L 12/09/23 05:44 87-68-3800140400 Isopropylbenzene (Cumene)<42.4 ug/L 12/09/23 05:44 98-82-820042.4 400 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-8 Lab ID:92701721004 Collected:12/05/23 11:20 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <756 ug/L 12/09/23 05:44 75-09-2800756400 Methyl-tert-butyl ether <21.3 ug/L 12/09/23 05:44 1634-04-420021.3 400 Naphthalene 242J ug/L 12/09/23 05:44 91-20-3 C880040.4 400 n-Propylbenzene <42.0 ug/L 12/09/23 05:44 103-65-120042.0 400 Styrene <54.8 ug/L 12/09/23 05:44 100-42-520054.8 400 1,1,1,2-Tetrachloroethane <36.4 ug/L 12/09/23 05:44 630-20-620036.4 400 1,1,2,2-Tetrachloroethane <29.5 ug/L 12/09/23 05:44 79-34-520029.5 400 Tetrachloroethene <34.3 ug/L 12/09/23 05:44 127-18-420034.3 400 Toluene 69800 ug/L 12/09/23 05:44 108-88-320035.9 400 1,2,3-Trichlorobenzene <48.4 ug/L 12/09/23 05:44 87-61-680048.4 400 1,2,4-Trichlorobenzene <62.4 ug/L 12/09/23 05:44 120-82-180062.4 400 1,1,1-Trichloroethane <42.8 ug/L 12/09/23 05:44 71-55-620042.8 400 1,1,2-Trichloroethane <38.2 ug/L 12/09/23 05:44 79-00-520038.2 400 Trichloroethene <68.4 ug/L 12/09/23 05:44 79-01-620068.4 400 Trichlorofluoromethane <57.6 ug/L 12/09/23 05:44 75-69-440057.6 400 1,2,3-Trichloropropane <69.2 ug/L 12/09/23 05:44 96-18-420069.2 400 1,2,4-Trimethylbenzene 554 ug/L 12/09/23 05:44 95-63-620012.3 400 1,3,5-Trimethylbenzene <28.5 ug/L 12/09/23 05:44 108-67-820028.5 400 Vinyl chloride <59.6 ug/L 12/09/23 05:44 75-01-440059.6 400 m&p-Xylene 1730 ug/L 12/09/23 05:44 179601-23-140037.4 400 o-Xylene 794 ug/L 12/09/23 05:44 95-47-620057.6 400 Surrogates 1,2-Dichloroethane-d4 (S)108 %12/09/23 05:44 17060-07-070-130 400 4-Bromofluorobenzene (S)97 %12/09/23 05:44 460-00-470-130 400 Toluene-d8 (S)101 %12/09/23 05:44 2037-26-570-130 400 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-10 Lab ID:92701721005 Collected:12/04/23 12:15 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 1910J ug/L 12/10/23 23:02 75-85-410000744100 tert-Amylmethyl ether 555J ug/L 12/10/23 23:02 994-05-8100012.4 100 Benzene 3380 ug/L 12/10/23 23:02 71-43-250.0 7.9 100 Bromobenzene <13.5 ug/L 12/10/23 23:02 108-86-150.0 13.5 100 Bromochloromethane <9.4 ug/L 12/10/23 23:02 74-97-550.0 9.4 100 Bromodichloromethane <17.0 ug/L 12/10/23 23:02 75-27-450.0 17.0 100 Bromoform <19.7 ug/L 12/10/23 23:02 75-25-250.0 19.7 100 Bromomethane <22.2 ug/L 12/10/23 23:02 74-83-950022.2 100 tert-Butyl Alcohol <409 ug/L 12/10/23 23:02 75-65-05000409100 n-Butylbenzene <6.6 ug/L 12/10/23 23:02 104-51-850.0 6.6 100 sec-Butylbenzene <8.5 ug/L 12/10/23 23:02 135-98-850.0 8.5 100 tert-Butylbenzene <8.6 ug/L 12/10/23 23:02 98-06-650.0 8.6 100 tert-Butyl Formate <30.0 ug/L 12/10/23 23:02 762-75-4500030.0 100 Carbon tetrachloride <16.9 ug/L 12/10/23 23:02 56-23-550.0 16.9 100 Chlorobenzene <8.5 ug/L 12/10/23 23:02 108-90-750.0 8.5 100 Chloroethane <17.3 ug/L 12/10/23 23:02 75-00-310017.3 100 Chloroform <6.9 ug/L 12/10/23 23:02 67-66-350.0 6.9 100 Chloromethane <17.5 ug/L 12/10/23 23:02 74-87-310017.5 100 2-Chlorotoluene <12.9 ug/L 12/10/23 23:02 95-49-850.0 12.9 100 4-Chlorotoluene <9.6 ug/L 12/10/23 23:02 106-43-450.0 9.6 100 1,2-Dibromo-3-chloropropane <17.9 ug/L 12/10/23 23:02 96-12-810017.9 100 Dibromochloromethane <14.8 ug/L 12/10/23 23:02 124-48-150.0 14.8 100 1,2-Dibromoethane (EDB)<14.7 ug/L 12/10/23 23:02 106-93-450.0 14.7 100 Dibromomethane <18.7 ug/L 12/10/23 23:02 74-95-350.0 18.7 100 1,2-Dichlorobenzene <9.4 ug/L 12/10/23 23:02 95-50-150.0 9.4 100 1,3-Dichlorobenzene <9.8 ug/L 12/10/23 23:02 541-73-150.0 9.8 100 1,4-Dichlorobenzene <9.0 ug/L 12/10/23 23:02 106-46-750.0 9.0 100 Dichlorodifluoromethane <12.3 ug/L 12/10/23 23:02 75-71-850.0 12.3 100 1,1-Dichloroethane <5.6 ug/L 12/10/23 23:02 75-34-350.0 5.6 100 1,2-Dichloroethane <10.6 ug/L 12/10/23 23:02 107-06-250.0 10.6 100 1,1-Dichloroethene <7.9 ug/L 12/10/23 23:02 75-35-450.0 7.9 100 cis-1,2-Dichloroethene <11.1 ug/L 12/10/23 23:02 156-59-250.0 11.1 100 trans-1,2-Dichloroethene <10.1 ug/L 12/10/23 23:02 156-60-550.0 10.1 100 1,2-Dichloropropane <13.6 ug/L 12/10/23 23:02 78-87-550.0 13.6 100 1,3-Dichloropropane <8.5 ug/L 12/10/23 23:02 142-28-950.0 8.5 100 2,2-Dichloropropane <12.2 ug/L 12/10/23 23:02 594-20-750.0 12.2 100 1,1-Dichloropropene <6.6 ug/L 12/10/23 23:02 563-58-650.0 6.6 100 cis-1,3-Dichloropropene <9.0 ug/L 12/10/23 23:02 10061-01-550.0 9.0 100 trans-1,3-Dichloropropene <13.2 ug/L 12/10/23 23:02 10061-02-650.0 13.2 100 Diisopropyl ether 37.8J ug/L 12/10/23 23:02 108-20-350.0 7.2 100 Ethanol <505 ug/L 12/10/23 23:02 64-17-520000505100 Ethylbenzene 1310 ug/L 12/10/23 23:02 100-41-450.0 8.1 100 Ethyl-tert-butyl ether 17.6J ug/L 12/10/23 23:02 637-92-3100011.2 100 Hexachloro-1,3-butadiene <35.1 ug/L 12/10/23 23:02 87-68-320035.1 100 Isopropylbenzene (Cumene)65.3 ug/L 12/10/23 23:02 98-82-850.0 10.6 100 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-10 Lab ID:92701721005 Collected:12/04/23 12:15 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <189 ug/L 12/10/23 23:02 75-09-2200189100 Methyl-tert-butyl ether 6470 ug/L 12/10/23 23:02 1634-04-450.0 5.3 100 Naphthalene 167J ug/L 12/10/23 23:02 91-20-3 C820010.1 100 n-Propylbenzene 112 ug/L 12/10/23 23:02 103-65-150.0 10.5 100 Styrene <13.7 ug/L 12/10/23 23:02 100-42-550.0 13.7 100 1,1,1,2-Tetrachloroethane <9.1 ug/L 12/10/23 23:02 630-20-650.0 9.1 100 1,1,2,2-Tetrachloroethane <7.4 ug/L 12/10/23 23:02 79-34-550.0 7.4 100 Tetrachloroethene <8.6 ug/L 12/10/23 23:02 127-18-450.0 8.6 100 Toluene 18800 ug/L 12/10/23 23:02 108-88-350.0 9.0 100 1,2,3-Trichlorobenzene <12.1 ug/L 12/10/23 23:02 87-61-620012.1 100 1,2,4-Trichlorobenzene <15.6 ug/L 12/10/23 23:02 120-82-120015.6 100 1,1,1-Trichloroethane <10.7 ug/L 12/10/23 23:02 71-55-650.0 10.7 100 1,1,2-Trichloroethane <9.6 ug/L 12/10/23 23:02 79-00-550.0 9.6 100 Trichloroethene <17.1 ug/L 12/10/23 23:02 79-01-650.0 17.1 100 Trichlorofluoromethane <14.4 ug/L 12/10/23 23:02 75-69-410014.4 100 1,2,3-Trichloropropane <17.3 ug/L 12/10/23 23:02 96-18-450.0 17.3 100 1,2,4-Trimethylbenzene 1100 ug/L 12/10/23 23:02 95-63-650.0 3.1 100 1,3,5-Trimethylbenzene 246 ug/L 12/10/23 23:02 108-67-850.0 7.1 100 Vinyl chloride <14.9 ug/L 12/10/23 23:02 75-01-410014.9 100 m&p-Xylene 5630 ug/L 12/10/23 23:02 179601-23-11009.4 100 o-Xylene 3070 ug/L 12/10/23 23:02 95-47-650.0 14.4 100 Surrogates 1,2-Dichloroethane-d4 (S)100 %12/10/23 23:02 17060-07-070-130 100 4-Bromofluorobenzene (S)100 %12/10/23 23:02 460-00-470-130 100 Toluene-d8 (S)101 %12/10/23 23:02 2037-26-570-130 100 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-11 Lab ID:92701721006 Collected:12/04/23 13:40 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7.4 ug/L 12/10/23 20:37 75-85-41007.4 1 tert-Amylmethyl ether 4.7J ug/L 12/10/23 20:37 994-05-810.0 0.12 1 Benzene 0.77 ug/L 12/10/23 20:37 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 12/10/23 20:37 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 12/10/23 20:37 74-97-50.50 0.094 1 Bromodichloromethane <0.17 ug/L 12/10/23 20:37 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 12/10/23 20:37 75-25-20.50 0.20 1 Bromomethane <0.22 ug/L 12/10/23 20:37 74-83-95.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 12/10/23 20:37 75-65-050.0 4.1 1 n-Butylbenzene <0.066 ug/L 12/10/23 20:37 104-51-80.50 0.066 1 sec-Butylbenzene <0.085 ug/L 12/10/23 20:37 135-98-80.50 0.085 1 tert-Butylbenzene <0.086 ug/L 12/10/23 20:37 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 12/10/23 20:37 762-75-450.0 0.30 1 Carbon tetrachloride <0.17 ug/L 12/10/23 20:37 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 12/10/23 20:37 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 12/10/23 20:37 75-00-31.0 0.17 1 Chloroform 2.7 ug/L 12/10/23 20:37 67-66-30.50 0.069 1 Chloromethane <0.18 ug/L 12/10/23 20:37 74-87-31.0 0.18 1 2-Chlorotoluene <0.13 ug/L 12/10/23 20:37 95-49-80.50 0.13 1 4-Chlorotoluene <0.096 ug/L 12/10/23 20:37 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 12/10/23 20:37 96-12-81.0 0.18 1 Dibromochloromethane <0.15 ug/L 12/10/23 20:37 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)<0.15 ug/L 12/10/23 20:37 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 12/10/23 20:37 74-95-30.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 12/10/23 20:37 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 12/10/23 20:37 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 12/10/23 20:37 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 12/10/23 20:37 75-71-80.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 12/10/23 20:37 75-34-30.50 0.056 1 1,2-Dichloroethane <0.11 ug/L 12/10/23 20:37 107-06-20.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 12/10/23 20:37 75-35-40.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 12/10/23 20:37 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 12/10/23 20:37 156-60-50.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 12/10/23 20:37 78-87-50.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 12/10/23 20:37 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 12/10/23 20:37 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 12/10/23 20:37 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 12/10/23 20:37 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 12/10/23 20:37 10061-02-60.50 0.13 1 Diisopropyl ether 1.3 ug/L 12/10/23 20:37 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 12/10/23 20:37 64-17-52005.0 1 Ethylbenzene 0.18J ug/L 12/10/23 20:37 100-41-40.50 0.081 1 Ethyl-tert-butyl ether 0.31J ug/L 12/10/23 20:37 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 12/10/23 20:37 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)<0.11 ug/L 12/10/23 20:37 98-82-80.50 0.11 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-11 Lab ID:92701721006 Collected:12/04/23 13:40 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <1.9 ug/L 12/10/23 20:37 75-09-22.0 1.9 1 Methyl-tert-butyl ether 60.2 ug/L 12/10/23 20:37 1634-04-40.50 0.053 1 Naphthalene 0.49J ug/L 12/10/23 20:37 91-20-32.0 0.10 1 n-Propylbenzene <0.10 ug/L 12/10/23 20:37 103-65-10.50 0.10 1 Styrene <0.14 ug/L 12/10/23 20:37 100-42-50.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 12/10/23 20:37 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 12/10/23 20:37 79-34-50.50 0.074 1 Tetrachloroethene 0.094J ug/L 12/10/23 20:37 127-18-40.50 0.086 1 Toluene 0.73 ug/L 12/10/23 20:37 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene <0.12 ug/L 12/10/23 20:37 87-61-62.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 12/10/23 20:37 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 12/10/23 20:37 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 12/10/23 20:37 79-00-50.50 0.096 1 Trichloroethene <0.17 ug/L 12/10/23 20:37 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 12/10/23 20:37 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 12/10/23 20:37 96-18-40.50 0.17 1 1,2,4-Trimethylbenzene 1.9 ug/L 12/10/23 20:37 95-63-60.50 0.031 1 1,3,5-Trimethylbenzene 1.4 ug/L 12/10/23 20:37 108-67-80.50 0.071 1 Vinyl chloride <0.15 ug/L 12/10/23 20:37 75-01-41.0 0.15 1 m&p-Xylene 1.5 ug/L 12/10/23 20:37 179601-23-11.0 0.094 1 o-Xylene 1.8 ug/L 12/10/23 20:37 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)101 %12/10/23 20:37 17060-07-070-130 1 4-Bromofluorobenzene (S)101 %12/10/23 20:37 460-00-470-130 1 Toluene-d8 (S)100 %12/10/23 20:37 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-12 Lab ID:92701721007 Collected:12/04/23 13:45 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 121J ug/L 12/10/23 21:50 75-85-4125093.0 12.5 tert-Amylmethyl ether 24.2J ug/L 12/10/23 21:50 994-05-81251.6 12.5 Benzene 170 ug/L 12/10/23 21:50 71-43-26.2 0.98 12.5 Bromobenzene <1.7 ug/L 12/10/23 21:50 108-86-16.2 1.7 12.5 Bromochloromethane <1.2 ug/L 12/10/23 21:50 74-97-56.2 1.2 12.5 Bromodichloromethane <2.1 ug/L 12/10/23 21:50 75-27-46.2 2.1 12.5 Bromoform <2.5 ug/L 12/10/23 21:50 75-25-26.2 2.5 12.5 Bromomethane <2.8 ug/L 12/10/23 21:50 74-83-962.5 2.8 12.5 tert-Butyl Alcohol <51.1 ug/L 12/10/23 21:50 75-65-062551.1 12.5 n-Butylbenzene <0.83 ug/L 12/10/23 21:50 104-51-86.2 0.83 12.5 sec-Butylbenzene 8.0 ug/L 12/10/23 21:50 135-98-86.2 1.1 12.5 tert-Butylbenzene <1.1 ug/L 12/10/23 21:50 98-06-66.2 1.1 12.5 tert-Butyl Formate <3.8 ug/L 12/10/23 21:50 762-75-46253.8 12.5 Carbon tetrachloride <2.1 ug/L 12/10/23 21:50 56-23-56.2 2.1 12.5 Chlorobenzene <1.1 ug/L 12/10/23 21:50 108-90-76.2 1.1 12.5 Chloroethane <2.2 ug/L 12/10/23 21:50 75-00-312.5 2.2 12.5 Chloroform <0.86 ug/L 12/10/23 21:50 67-66-36.2 0.86 12.5 Chloromethane <2.2 ug/L 12/10/23 21:50 74-87-312.5 2.2 12.5 2-Chlorotoluene <1.6 ug/L 12/10/23 21:50 95-49-86.2 1.6 12.5 4-Chlorotoluene <1.2 ug/L 12/10/23 21:50 106-43-46.2 1.2 12.5 1,2-Dibromo-3-chloropropane <2.2 ug/L 12/10/23 21:50 96-12-812.5 2.2 12.5 Dibromochloromethane <1.8 ug/L 12/10/23 21:50 124-48-16.2 1.8 12.5 1,2-Dibromoethane (EDB)<1.8 ug/L 12/10/23 21:50 106-93-46.2 1.8 12.5 Dibromomethane <2.3 ug/L 12/10/23 21:50 74-95-36.2 2.3 12.5 1,2-Dichlorobenzene <1.2 ug/L 12/10/23 21:50 95-50-16.2 1.2 12.5 1,3-Dichlorobenzene <1.2 ug/L 12/10/23 21:50 541-73-16.2 1.2 12.5 1,4-Dichlorobenzene <1.1 ug/L 12/10/23 21:50 106-46-76.2 1.1 12.5 Dichlorodifluoromethane <1.5 ug/L 12/10/23 21:50 75-71-86.2 1.5 12.5 1,1-Dichloroethane <0.70 ug/L 12/10/23 21:50 75-34-36.2 0.70 12.5 1,2-Dichloroethane <1.3 ug/L 12/10/23 21:50 107-06-26.2 1.3 12.5 1,1-Dichloroethene <0.98 ug/L 12/10/23 21:50 75-35-46.2 0.98 12.5 cis-1,2-Dichloroethene <1.4 ug/L 12/10/23 21:50 156-59-26.2 1.4 12.5 trans-1,2-Dichloroethene <1.3 ug/L 12/10/23 21:50 156-60-56.2 1.3 12.5 1,2-Dichloropropane <1.7 ug/L 12/10/23 21:50 78-87-56.2 1.7 12.5 1,3-Dichloropropane <1.1 ug/L 12/10/23 21:50 142-28-96.2 1.1 12.5 2,2-Dichloropropane <1.5 ug/L 12/10/23 21:50 594-20-76.2 1.5 12.5 1,1-Dichloropropene <0.82 ug/L 12/10/23 21:50 563-58-66.2 0.82 12.5 cis-1,3-Dichloropropene <1.1 ug/L 12/10/23 21:50 10061-01-56.2 1.1 12.5 trans-1,3-Dichloropropene <1.6 ug/L 12/10/23 21:50 10061-02-66.2 1.6 12.5 Diisopropyl ether 1.9J ug/L 12/10/23 21:50 108-20-36.2 0.91 12.5 Ethanol <63.1 ug/L 12/10/23 21:50 64-17-5250063.1 12.5 Ethylbenzene 841 ug/L 12/10/23 21:50 100-41-46.2 1.0 12.5 Ethyl-tert-butyl ether <1.4 ug/L 12/10/23 21:50 637-92-31251.4 12.5 Hexachloro-1,3-butadiene <4.4 ug/L 12/10/23 21:50 87-68-325.0 4.4 12.5 Isopropylbenzene (Cumene)125 ug/L 12/10/23 21:50 98-82-86.2 1.3 12.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-12 Lab ID:92701721007 Collected:12/04/23 13:45 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <23.6 ug/L 12/10/23 21:50 75-09-225.0 23.6 12.5 Methyl-tert-butyl ether 237 ug/L 12/10/23 21:50 1634-04-46.2 0.67 12.5 Naphthalene 174 ug/L 12/10/23 21:50 91-20-325.0 1.3 12.5 n-Propylbenzene 299 ug/L 12/10/23 21:50 103-65-16.2 1.3 12.5 Styrene <1.7 ug/L 12/10/23 21:50 100-42-56.2 1.7 12.5 1,1,1,2-Tetrachloroethane <1.1 ug/L 12/10/23 21:50 630-20-66.2 1.1 12.5 1,1,2,2-Tetrachloroethane <0.92 ug/L 12/10/23 21:50 79-34-56.2 0.92 12.5 Tetrachloroethene <1.1 ug/L 12/10/23 21:50 127-18-46.2 1.1 12.5 Toluene 121 ug/L 12/10/23 21:50 108-88-36.2 1.1 12.5 1,2,3-Trichlorobenzene <1.5 ug/L 12/10/23 21:50 87-61-625.0 1.5 12.5 1,2,4-Trichlorobenzene <2.0 ug/L 12/10/23 21:50 120-82-125.0 2.0 12.5 1,1,1-Trichloroethane <1.3 ug/L 12/10/23 21:50 71-55-66.2 1.3 12.5 1,1,2-Trichloroethane <1.2 ug/L 12/10/23 21:50 79-00-56.2 1.2 12.5 Trichloroethene <2.1 ug/L 12/10/23 21:50 79-01-66.2 2.1 12.5 Trichlorofluoromethane <1.8 ug/L 12/10/23 21:50 75-69-412.5 1.8 12.5 1,2,3-Trichloropropane 16.5 ug/L 12/10/23 21:50 96-18-46.2 2.2 12.5 1,2,4-Trimethylbenzene 2150 ug/L 12/10/23 21:50 95-63-66.2 0.38 12.5 1,3,5-Trimethylbenzene 569 ug/L 12/10/23 21:50 108-67-86.2 0.89 12.5 Vinyl chloride <1.9 ug/L 12/10/23 21:50 75-01-412.5 1.9 12.5 m&p-Xylene 1510 ug/L 12/10/23 21:50 179601-23-112.5 1.2 12.5 o-Xylene 1120 ug/L 12/10/23 21:50 95-47-66.2 1.8 12.5 Surrogates 1,2-Dichloroethane-d4 (S)98 %12/10/23 21:50 17060-07-070-130 12.5 4-Bromofluorobenzene (S)101 %12/10/23 21:50 460-00-470-130 12.5 Toluene-d8 (S)102 %12/10/23 21:50 2037-26-570-130 12.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-14 Lab ID:92701721008 Collected:12/05/23 09:50 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 446J ug/L 12/07/23 21:37 75-85-4100074.4 10 tert-Amylmethyl ether 157 ug/L 12/07/23 21:37 994-05-81001.2 10 Benzene 840 ug/L 12/07/23 21:37 71-43-25.0 0.79 10 Bromobenzene <1.4 ug/L 12/07/23 21:37 108-86-15.0 1.4 10 Bromochloromethane <0.94 ug/L 12/07/23 21:37 74-97-55.0 0.94 10 Bromodichloromethane <1.7 ug/L 12/07/23 21:37 75-27-45.0 1.7 10 Bromoform <2.0 ug/L 12/07/23 21:37 75-25-25.0 2.0 10 Bromomethane <2.2 ug/L 12/07/23 21:37 74-83-950.0 2.2 10 tert-Butyl Alcohol <40.9 ug/L 12/07/23 21:37 75-65-050040.9 10 n-Butylbenzene 9.2 ug/L 12/07/23 21:37 104-51-85.0 0.66 10 sec-Butylbenzene 3.1J ug/L 12/07/23 21:37 135-98-85.0 0.85 10 tert-Butylbenzene <0.86 ug/L 12/07/23 21:37 98-06-65.0 0.86 10 tert-Butyl Formate <3.0 ug/L 12/07/23 21:37 762-75-45003.0 10 Carbon tetrachloride <1.7 ug/L 12/07/23 21:37 56-23-55.0 1.7 10 Chlorobenzene <0.85 ug/L 12/07/23 21:37 108-90-75.0 0.85 10 Chloroethane <1.7 ug/L 12/07/23 21:37 75-00-310.0 1.7 10 Chloroform 0.80J ug/L 12/07/23 21:37 67-66-35.0 0.69 10 Chloromethane <1.8 ug/L 12/07/23 21:37 74-87-310.0 1.8 10 2-Chlorotoluene <1.3 ug/L 12/07/23 21:37 95-49-85.0 1.3 10 4-Chlorotoluene <0.96 ug/L 12/07/23 21:37 106-43-45.0 0.96 10 1,2-Dibromo-3-chloropropane <1.8 ug/L 12/07/23 21:37 96-12-810.0 1.8 10 Dibromochloromethane <1.5 ug/L 12/07/23 21:37 124-48-15.0 1.5 10 1,2-Dibromoethane (EDB)<1.5 ug/L 12/07/23 21:37 106-93-45.0 1.5 10 Dibromomethane <1.9 ug/L 12/07/23 21:37 74-95-35.0 1.9 10 1,2-Dichlorobenzene <0.94 ug/L 12/07/23 21:37 95-50-15.0 0.94 10 1,3-Dichlorobenzene <0.98 ug/L 12/07/23 21:37 541-73-15.0 0.98 10 1,4-Dichlorobenzene <0.90 ug/L 12/07/23 21:37 106-46-75.0 0.90 10 Dichlorodifluoromethane <1.2 ug/L 12/07/23 21:37 75-71-85.0 1.2 10 1,1-Dichloroethane <0.56 ug/L 12/07/23 21:37 75-34-35.0 0.56 10 1,2-Dichloroethane <1.1 ug/L 12/07/23 21:37 107-06-25.0 1.1 10 1,1-Dichloroethene <0.79 ug/L 12/07/23 21:37 75-35-45.0 0.79 10 cis-1,2-Dichloroethene <1.1 ug/L 12/07/23 21:37 156-59-25.0 1.1 10 trans-1,2-Dichloroethene <1.0 ug/L 12/07/23 21:37 156-60-55.0 1.0 10 1,2-Dichloropropane <1.4 ug/L 12/07/23 21:37 78-87-55.0 1.4 10 1,3-Dichloropropane <0.85 ug/L 12/07/23 21:37 142-28-95.0 0.85 10 2,2-Dichloropropane <1.2 ug/L 12/07/23 21:37 594-20-75.0 1.2 10 1,1-Dichloropropene <0.66 ug/L 12/07/23 21:37 563-58-65.0 0.66 10 cis-1,3-Dichloropropene <0.90 ug/L 12/07/23 21:37 10061-01-55.0 0.90 10 trans-1,3-Dichloropropene <1.3 ug/L 12/07/23 21:37 10061-02-65.0 1.3 10 Diisopropyl ether 11.5 ug/L 12/07/23 21:37 108-20-35.0 0.72 10 Ethanol <50.5 ug/L 12/07/23 21:37 64-17-5200050.5 10 Ethylbenzene 3.8J ug/L 12/07/23 21:37 100-41-45.0 0.81 10 Ethyl-tert-butyl ether 7.5J ug/L 12/07/23 21:37 637-92-31001.1 10 Hexachloro-1,3-butadiene <3.5 ug/L 12/07/23 21:37 87-68-320.0 3.5 10 Isopropylbenzene (Cumene)47.1 ug/L 12/07/23 21:37 98-82-85.0 1.1 10 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:MW-14 Lab ID:92701721008 Collected:12/05/23 09:50 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <18.9 ug/L 12/07/23 21:37 75-09-220.0 18.9 10 Methyl-tert-butyl ether 1410 ug/L 12/07/23 21:37 1634-04-45.0 0.53 10 Naphthalene 101 ug/L 12/07/23 21:37 91-20-320.0 1.0 10 n-Propylbenzene 19.3 ug/L 12/07/23 21:37 103-65-15.0 1.0 10 Styrene <1.4 ug/L 12/07/23 21:37 100-42-55.0 1.4 10 1,1,1,2-Tetrachloroethane <0.91 ug/L 12/07/23 21:37 630-20-65.0 0.91 10 1,1,2,2-Tetrachloroethane <0.74 ug/L 12/07/23 21:37 79-34-55.0 0.74 10 Tetrachloroethene <0.86 ug/L 12/07/23 21:37 127-18-45.0 0.86 10 Toluene 3.8J ug/L 12/07/23 21:37 108-88-35.0 0.90 10 1,2,3-Trichlorobenzene <1.2 ug/L 12/07/23 21:37 87-61-620.0 1.2 10 1,2,4-Trichlorobenzene <1.6 ug/L 12/07/23 21:37 120-82-120.0 1.6 10 1,1,1-Trichloroethane <1.1 ug/L 12/07/23 21:37 71-55-65.0 1.1 10 1,1,2-Trichloroethane <0.96 ug/L 12/07/23 21:37 79-00-55.0 0.96 10 Trichloroethene <1.7 ug/L 12/07/23 21:37 79-01-65.0 1.7 10 Trichlorofluoromethane <1.4 ug/L 12/07/23 21:37 75-69-410.0 1.4 10 1,2,3-Trichloropropane <1.7 ug/L 12/07/23 21:37 96-18-45.0 1.7 10 1,2,4-Trimethylbenzene 544 ug/L 12/07/23 21:37 95-63-65.0 0.31 10 1,3,5-Trimethylbenzene 52.4 ug/L 12/07/23 21:37 108-67-85.0 0.71 10 Vinyl chloride <1.5 ug/L 12/07/23 21:37 75-01-410.0 1.5 10 m&p-Xylene 762 ug/L 12/07/23 21:37 179601-23-110.0 0.94 10 o-Xylene 420 ug/L 12/07/23 21:37 95-47-65.0 1.4 10 Surrogates 1,2-Dichloroethane-d4 (S)98 %12/07/23 21:37 17060-07-070-130 10 4-Bromofluorobenzene (S)99 %12/07/23 21:37 460-00-470-130 10 Toluene-d8 (S)100 %12/07/23 21:37 2037-26-570-130 10 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:AS-1 Lab ID:92701721009 Collected:12/04/23 11:30 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 33.5J ug/L 12/06/23 18:32 75-85-41007.4 1 tert-Amylmethyl ether 7.5J ug/L 12/06/23 18:32 994-05-810.0 0.12 1 Benzene 19.5 ug/L 12/06/23 18:32 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 12/06/23 18:32 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 12/06/23 18:32 74-97-50.50 0.094 1 Bromodichloromethane <0.17 ug/L 12/06/23 18:32 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 12/06/23 18:32 75-25-20.50 0.20 1 Bromomethane <0.22 ug/L 12/06/23 18:32 74-83-95.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 12/06/23 18:32 75-65-050.0 4.1 1 n-Butylbenzene <0.066 ug/L 12/06/23 18:32 104-51-80.50 0.066 1 sec-Butylbenzene 0.16J ug/L 12/06/23 18:32 135-98-80.50 0.085 1 tert-Butylbenzene <0.086 ug/L 12/06/23 18:32 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 12/06/23 18:32 762-75-450.0 0.30 1 Carbon tetrachloride <0.17 ug/L 12/06/23 18:32 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 12/06/23 18:32 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 12/06/23 18:32 75-00-31.0 0.17 1 Chloroform 4.4 ug/L 12/06/23 18:32 67-66-30.50 0.069 1 Chloromethane <0.18 ug/L 12/06/23 18:32 74-87-31.0 0.18 1 2-Chlorotoluene <0.13 ug/L 12/06/23 18:32 95-49-80.50 0.13 1 4-Chlorotoluene <0.096 ug/L 12/06/23 18:32 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 12/06/23 18:32 96-12-81.0 0.18 1 Dibromochloromethane <0.15 ug/L 12/06/23 18:32 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)<0.15 ug/L 12/06/23 18:32 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 12/06/23 18:32 74-95-30.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 12/06/23 18:32 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 12/06/23 18:32 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 12/06/23 18:32 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 12/06/23 18:32 75-71-80.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 12/06/23 18:32 75-34-30.50 0.056 1 1,2-Dichloroethane <0.11 ug/L 12/06/23 18:32 107-06-20.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 12/06/23 18:32 75-35-40.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 12/06/23 18:32 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 12/06/23 18:32 156-60-50.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 12/06/23 18:32 78-87-50.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 12/06/23 18:32 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 12/06/23 18:32 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 12/06/23 18:32 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 12/06/23 18:32 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 12/06/23 18:32 10061-02-60.50 0.13 1 Diisopropyl ether 0.60 ug/L 12/06/23 18:32 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 12/06/23 18:32 64-17-52005.0 1 Ethylbenzene <0.081 ug/L 12/06/23 18:32 100-41-40.50 0.081 1 Ethyl-tert-butyl ether 0.29J ug/L 12/06/23 18:32 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 12/06/23 18:32 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)<0.11 ug/L 12/06/23 18:32 98-82-80.50 0.11 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:AS-1 Lab ID:92701721009 Collected:12/04/23 11:30 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <1.9 ug/L 12/06/23 18:32 75-09-22.0 1.9 1 Methyl-tert-butyl ether 106 ug/L 12/06/23 18:32 1634-04-40.50 0.053 1 Naphthalene 3.5 ug/L 12/06/23 18:32 91-20-32.0 0.10 1 n-Propylbenzene <0.10 ug/L 12/06/23 18:32 103-65-10.50 0.10 1 Styrene <0.14 ug/L 12/06/23 18:32 100-42-50.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 12/06/23 18:32 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 12/06/23 18:32 79-34-50.50 0.074 1 Tetrachloroethene <0.086 ug/L 12/06/23 18:32 127-18-40.50 0.086 1 Toluene 0.20J ug/L 12/06/23 18:32 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene <0.12 ug/L 12/06/23 18:32 87-61-62.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 12/06/23 18:32 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 12/06/23 18:32 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 12/06/23 18:32 79-00-50.50 0.096 1 Trichloroethene <0.17 ug/L 12/06/23 18:32 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 12/06/23 18:32 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 12/06/23 18:32 96-18-40.50 0.17 1 1,2,4-Trimethylbenzene 2.4 ug/L 12/06/23 18:32 95-63-60.50 0.031 1 1,3,5-Trimethylbenzene 1.6 ug/L 12/06/23 18:32 108-67-80.50 0.071 1 Vinyl chloride <0.15 ug/L 12/06/23 18:32 75-01-41.0 0.15 1 m&p-Xylene 0.28J ug/L 12/06/23 18:32 179601-23-11.0 0.094 1 o-Xylene 1.5 ug/L 12/06/23 18:32 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)99 %12/06/23 18:32 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %12/06/23 18:32 460-00-470-130 1 Toluene-d8 (S)99 %12/06/23 18:32 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:AS-2 Lab ID:92701721010 Collected:12/04/23 11:20 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7.4 ug/L 12/06/23 18:50 75-85-41007.4 1 tert-Amylmethyl ether <0.12 ug/L 12/06/23 18:50 994-05-810.0 0.12 1 Benzene <0.079 ug/L 12/06/23 18:50 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 12/06/23 18:50 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 12/06/23 18:50 74-97-50.50 0.094 1 Bromodichloromethane <0.17 ug/L 12/06/23 18:50 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 12/06/23 18:50 75-25-20.50 0.20 1 Bromomethane <0.22 ug/L 12/06/23 18:50 74-83-95.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 12/06/23 18:50 75-65-050.0 4.1 1 n-Butylbenzene <0.066 ug/L 12/06/23 18:50 104-51-80.50 0.066 1 sec-Butylbenzene <0.085 ug/L 12/06/23 18:50 135-98-80.50 0.085 1 tert-Butylbenzene <0.086 ug/L 12/06/23 18:50 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 12/06/23 18:50 762-75-450.0 0.30 1 Carbon tetrachloride <0.17 ug/L 12/06/23 18:50 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 12/06/23 18:50 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 12/06/23 18:50 75-00-31.0 0.17 1 Chloroform 4.7 ug/L 12/06/23 18:50 67-66-30.50 0.069 1 Chloromethane <0.18 ug/L 12/06/23 18:50 74-87-31.0 0.18 1 2-Chlorotoluene <0.13 ug/L 12/06/23 18:50 95-49-80.50 0.13 1 4-Chlorotoluene <0.096 ug/L 12/06/23 18:50 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 12/06/23 18:50 96-12-81.0 0.18 1 Dibromochloromethane <0.15 ug/L 12/06/23 18:50 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)<0.15 ug/L 12/06/23 18:50 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 12/06/23 18:50 74-95-30.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 12/06/23 18:50 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 12/06/23 18:50 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 12/06/23 18:50 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 12/06/23 18:50 75-71-80.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 12/06/23 18:50 75-34-30.50 0.056 1 1,2-Dichloroethane <0.11 ug/L 12/06/23 18:50 107-06-20.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 12/06/23 18:50 75-35-40.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 12/06/23 18:50 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 12/06/23 18:50 156-60-50.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 12/06/23 18:50 78-87-50.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 12/06/23 18:50 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 12/06/23 18:50 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 12/06/23 18:50 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 12/06/23 18:50 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 12/06/23 18:50 10061-02-60.50 0.13 1 Diisopropyl ether <0.072 ug/L 12/06/23 18:50 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 12/06/23 18:50 64-17-52005.0 1 Ethylbenzene <0.081 ug/L 12/06/23 18:50 100-41-40.50 0.081 1 Ethyl-tert-butyl ether <0.11 ug/L 12/06/23 18:50 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 12/06/23 18:50 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)<0.11 ug/L 12/06/23 18:50 98-82-80.50 0.11 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:AS-2 Lab ID:92701721010 Collected:12/04/23 11:20 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <1.9 ug/L 12/06/23 18:50 75-09-22.0 1.9 1 Methyl-tert-butyl ether 2.2 ug/L 12/06/23 18:50 1634-04-40.50 0.053 1 Naphthalene 0.13J ug/L 12/06/23 18:50 91-20-32.0 0.10 1 n-Propylbenzene <0.10 ug/L 12/06/23 18:50 103-65-10.50 0.10 1 Styrene <0.14 ug/L 12/06/23 18:50 100-42-50.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 12/06/23 18:50 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 12/06/23 18:50 79-34-50.50 0.074 1 Tetrachloroethene <0.086 ug/L 12/06/23 18:50 127-18-40.50 0.086 1 Toluene 0.27J ug/L 12/06/23 18:50 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene <0.12 ug/L 12/06/23 18:50 87-61-62.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 12/06/23 18:50 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 12/06/23 18:50 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 12/06/23 18:50 79-00-50.50 0.096 1 Trichloroethene <0.17 ug/L 12/06/23 18:50 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 12/06/23 18:50 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 12/06/23 18:50 96-18-40.50 0.17 1 1,2,4-Trimethylbenzene 0.14J ug/L 12/06/23 18:50 95-63-60.50 0.031 1 1,3,5-Trimethylbenzene <0.071 ug/L 12/06/23 18:50 108-67-80.50 0.071 1 Vinyl chloride <0.15 ug/L 12/06/23 18:50 75-01-41.0 0.15 1 m&p-Xylene 0.27J ug/L 12/06/23 18:50 179601-23-11.0 0.094 1 o-Xylene <0.14 ug/L 12/06/23 18:50 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)100 %12/06/23 18:50 17060-07-070-130 1 4-Bromofluorobenzene (S)99 %12/06/23 18:50 460-00-470-130 1 Toluene-d8 (S)99 %12/06/23 18:50 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:DMW-1 Lab ID:92701721011 Collected:12/05/23 09:35 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7.4 ug/L 12/06/23 18:13 75-85-41007.4 1 tert-Amylmethyl ether <0.12 ug/L 12/06/23 18:13 994-05-810.0 0.12 1 Benzene <0.079 ug/L 12/06/23 18:13 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 12/06/23 18:13 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 12/06/23 18:13 74-97-50.50 0.094 1 Bromodichloromethane <0.17 ug/L 12/06/23 18:13 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 12/06/23 18:13 75-25-20.50 0.20 1 Bromomethane <0.22 ug/L 12/06/23 18:13 74-83-9 M15.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 12/06/23 18:13 75-65-050.0 4.1 1 n-Butylbenzene 0.12J ug/L 12/06/23 18:13 104-51-80.50 0.066 1 sec-Butylbenzene <0.085 ug/L 12/06/23 18:13 135-98-80.50 0.085 1 tert-Butylbenzene <0.086 ug/L 12/06/23 18:13 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 12/06/23 18:13 762-75-4 P550.0 0.30 1 Carbon tetrachloride <0.17 ug/L 12/06/23 18:13 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 12/06/23 18:13 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 12/06/23 18:13 75-00-31.0 0.17 1 Chloroform 7.2 ug/L 12/06/23 18:13 67-66-30.50 0.069 1 Chloromethane <0.18 ug/L 12/06/23 18:13 74-87-31.0 0.18 1 2-Chlorotoluene <0.13 ug/L 12/06/23 18:13 95-49-80.50 0.13 1 4-Chlorotoluene <0.096 ug/L 12/06/23 18:13 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 12/06/23 18:13 96-12-81.0 0.18 1 Dibromochloromethane <0.15 ug/L 12/06/23 18:13 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)<0.15 ug/L 12/06/23 18:13 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 12/06/23 18:13 74-95-30.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 12/06/23 18:13 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 12/06/23 18:13 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 12/06/23 18:13 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 12/06/23 18:13 75-71-80.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 12/06/23 18:13 75-34-30.50 0.056 1 1,2-Dichloroethane <0.11 ug/L 12/06/23 18:13 107-06-20.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 12/06/23 18:13 75-35-40.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 12/06/23 18:13 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 12/06/23 18:13 156-60-50.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 12/06/23 18:13 78-87-50.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 12/06/23 18:13 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 12/06/23 18:13 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 12/06/23 18:13 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 12/06/23 18:13 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 12/06/23 18:13 10061-02-60.50 0.13 1 Diisopropyl ether <0.072 ug/L 12/06/23 18:13 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 12/06/23 18:13 64-17-52005.0 1 Ethylbenzene <0.081 ug/L 12/06/23 18:13 100-41-40.50 0.081 1 Ethyl-tert-butyl ether <0.11 ug/L 12/06/23 18:13 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 12/06/23 18:13 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)<0.11 ug/L 12/06/23 18:13 98-82-80.50 0.11 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 57 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Sample:DMW-1 Lab ID:92701721011 Collected:12/05/23 09:35 Received:12/05/23 13:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <1.9 ug/L 12/06/23 18:13 75-09-22.0 1.9 1 Methyl-tert-butyl ether 0.21J ug/L 12/06/23 18:13 1634-04-40.50 0.053 1 Naphthalene 0.12J ug/L 12/06/23 18:13 91-20-32.0 0.10 1 n-Propylbenzene <0.10 ug/L 12/06/23 18:13 103-65-10.50 0.10 1 Styrene <0.14 ug/L 12/06/23 18:13 100-42-50.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 12/06/23 18:13 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 12/06/23 18:13 79-34-50.50 0.074 1 Tetrachloroethene <0.086 ug/L 12/06/23 18:13 127-18-40.50 0.086 1 Toluene <0.090 ug/L 12/06/23 18:13 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene 0.13J ug/L 12/06/23 18:13 87-61-62.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 12/06/23 18:13 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 12/06/23 18:13 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 12/06/23 18:13 79-00-50.50 0.096 1 Trichloroethene <0.17 ug/L 12/06/23 18:13 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 12/06/23 18:13 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 12/06/23 18:13 96-18-40.50 0.17 1 1,2,4-Trimethylbenzene 0.064J ug/L 12/06/23 18:13 95-63-60.50 0.031 1 1,3,5-Trimethylbenzene <0.071 ug/L 12/06/23 18:13 108-67-80.50 0.071 1 Vinyl chloride <0.15 ug/L 12/06/23 18:13 75-01-41.0 0.15 1 m&p-Xylene 0.12J ug/L 12/06/23 18:13 179601-23-11.0 0.094 1 o-Xylene <0.14 ug/L 12/06/23 18:13 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)99 %12/06/23 18:13 17060-07-070-130 1 4-Bromofluorobenzene (S)100 %12/06/23 18:13 460-00-470-130 1 Toluene-d8 (S)99 %12/06/23 18:13 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 817584 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92701721002, 92701721003, 92701721009, 92701721010, 92701721011 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4231714 Associated Lab Samples:92701721002, 92701721003, 92701721009, 92701721010, 92701721011 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 12/06/23 16:060.091 1,1,1-Trichloroethane ug/L <0.11 0.50 12/06/23 16:060.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 12/06/23 16:060.074 1,1,2-Trichloroethane ug/L <0.096 0.50 12/06/23 16:060.096 1,1-Dichloroethane ug/L <0.056 0.50 12/06/23 16:060.056 1,1-Dichloroethene ug/L <0.079 0.50 12/06/23 16:060.079 1,1-Dichloropropene ug/L <0.066 0.50 12/06/23 16:060.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 12/06/23 16:060.12 1,2,3-Trichloropropane ug/L <0.17 0.50 12/06/23 16:060.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 12/06/23 16:060.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 12/06/23 16:060.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 12/06/23 16:060.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 12/06/23 16:060.15 1,2-Dichlorobenzene ug/L <0.094 0.50 12/06/23 16:060.094 1,2-Dichloroethane ug/L <0.11 0.50 12/06/23 16:060.11 1,2-Dichloropropane ug/L <0.14 0.50 12/06/23 16:060.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 12/06/23 16:060.071 1,3-Dichlorobenzene ug/L <0.098 0.50 12/06/23 16:060.098 1,3-Dichloropropane ug/L <0.085 0.50 12/06/23 16:060.085 1,4-Dichlorobenzene ug/L <0.090 0.50 12/06/23 16:060.090 2,2-Dichloropropane ug/L <0.12 0.50 12/06/23 16:060.12 2-Chlorotoluene ug/L <0.13 0.50 12/06/23 16:060.13 4-Chlorotoluene ug/L <0.096 0.50 12/06/23 16:060.096 Benzene ug/L <0.079 0.50 12/06/23 16:060.079 Bromobenzene ug/L <0.14 0.50 12/06/23 16:060.14 Bromochloromethane ug/L <0.094 0.50 12/06/23 16:060.094 Bromodichloromethane ug/L <0.17 0.50 12/06/23 16:060.17 Bromoform ug/L <0.20 0.50 12/06/23 16:060.20 Bromomethane ug/L <0.22 5.0 12/06/23 16:060.22 Carbon tetrachloride ug/L <0.17 0.50 12/06/23 16:060.17 Chlorobenzene ug/L <0.085 0.50 12/06/23 16:060.085 Chloroethane ug/L <0.17 1.0 12/06/23 16:060.17 Chloroform ug/L <0.069 0.50 12/06/23 16:060.069 Chloromethane ug/L <0.18 1.0 12/06/23 16:060.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 12/06/23 16:060.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 12/06/23 16:060.090 Dibromochloromethane ug/L <0.15 0.50 12/06/23 16:060.15 Dibromomethane ug/L <0.19 0.50 12/06/23 16:060.19 Dichlorodifluoromethane ug/L <0.12 0.50 12/06/23 16:060.12 Diisopropyl ether ug/L <0.072 0.50 12/06/23 16:060.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 27 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4231714 Associated Lab Samples:92701721002, 92701721003, 92701721009, 92701721010, 92701721011 Matrix:Water AnalyzedMDL Ethanol ug/L <5.0 200 12/06/23 16:065.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 12/06/23 16:060.11 Ethylbenzene ug/L <0.081 0.50 12/06/23 16:060.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 12/06/23 16:060.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 12/06/23 16:060.11 m&p-Xylene ug/L <0.094 1.0 12/06/23 16:060.094 Methyl-tert-butyl ether ug/L <0.053 0.50 12/06/23 16:060.053 Methylene Chloride ug/L <1.9 2.0 12/06/23 16:061.9 n-Butylbenzene ug/L <0.066 0.50 12/06/23 16:060.066 n-Propylbenzene ug/L <0.10 0.50 12/06/23 16:060.10 Naphthalene ug/L <0.10 2.0 12/06/23 16:060.10 o-Xylene ug/L <0.14 0.50 12/06/23 16:060.14 sec-Butylbenzene ug/L <0.085 0.50 12/06/23 16:060.085 Styrene ug/L <0.14 0.50 12/06/23 16:060.14 tert-Amyl Alcohol ug/L <7.4 100 12/06/23 16:067.4 tert-Amylmethyl ether ug/L <0.12 10.0 12/06/23 16:060.12 tert-Butyl Alcohol ug/L <4.1 50.0 12/06/23 16:064.1 tert-Butyl Formate ug/L <0.30 50.0 12/06/23 16:060.30 tert-Butylbenzene ug/L <0.086 0.50 12/06/23 16:060.086 Tetrachloroethene ug/L <0.086 0.50 12/06/23 16:060.086 Toluene ug/L <0.090 0.50 12/06/23 16:060.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 12/06/23 16:060.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 12/06/23 16:060.13 Trichloroethene ug/L <0.17 0.50 12/06/23 16:060.17 Trichlorofluoromethane ug/L <0.14 1.0 12/06/23 16:060.14 Vinyl chloride ug/L <0.15 1.0 12/06/23 16:060.15 1,2-Dichloroethane-d4 (S)%99 70-130 12/06/23 16:06 4-Bromofluorobenzene (S)%100 70-130 12/06/23 16:06 Toluene-d8 (S)%100 70-130 12/06/23 16:06 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4231715LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 21.520 107 60-140 1,1,1-Trichloroethane ug/L 20.520 103 60-140 1,1,2,2-Tetrachloroethane ug/L 20.720 104 60-140 1,1,2-Trichloroethane ug/L 20.620 103 60-140 1,1-Dichloroethane ug/L 19.920 100 60-140 1,1-Dichloroethene ug/L 20.820 104 60-140 1,1-Dichloropropene ug/L 21.620 108 60-140 1,2,3-Trichlorobenzene ug/L 21.320 106 60-140 1,2,3-Trichloropropane ug/L 19.520 98 60-140 1,2,4-Trichlorobenzene ug/L 20.820 104 60-140 1,2,4-Trimethylbenzene ug/L 21.120 106 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 28 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4231715LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 19.720 98 60-140 1,2-Dibromoethane (EDB)ug/L 20.720 104 60-140 1,2-Dichlorobenzene ug/L 20.820 104 60-140 1,2-Dichloroethane ug/L 19.920 100 60-140 1,2-Dichloropropane ug/L 20.920 105 60-140 1,3,5-Trimethylbenzene ug/L 21.120 106 60-140 1,3-Dichlorobenzene ug/L 20.620 103 60-140 1,3-Dichloropropane ug/L 20.020 100 60-140 1,4-Dichlorobenzene ug/L 20.720 103 60-140 2,2-Dichloropropane ug/L 20.820 104 60-140 2-Chlorotoluene ug/L 20.620 103 60-140 4-Chlorotoluene ug/L 20.520 103 60-140 Benzene ug/L 20.220 101 60-140 Bromobenzene ug/L 20.720 104 60-140 Bromochloromethane ug/L 20.920 105 60-140 Bromodichloromethane ug/L 20.520 102 60-140 Bromoform ug/L 21.520 108 60-140 Bromomethane ug/L 20.620 103 60-140 Carbon tetrachloride ug/L 21.020 105 60-140 Chlorobenzene ug/L 20.520 102 60-140 Chloroethane ug/L 22.720 113 60-140 Chloroform ug/L 19.920 100 60-140 Chloromethane ug/L 20.520 103 60-140 cis-1,2-Dichloroethene ug/L 20.620 103 60-140 cis-1,3-Dichloropropene ug/L 20.520 103 60-140 Dibromochloromethane ug/L 21.020 105 60-140 Dibromomethane ug/L 20.320 102 60-140 Dichlorodifluoromethane ug/L 21.420 107 60-140 Diisopropyl ether ug/L 19.920 100 60-140 Ethanol ug/L 788800 98 60-140 Ethyl-tert-butyl ether ug/L 39.440 99 60-140 Ethylbenzene ug/L 20.420 102 60-140 Hexachloro-1,3-butadiene ug/L 21.920 109 60-140 Isopropylbenzene (Cumene)ug/L 21.420 107 60-140 m&p-Xylene ug/L 40.740 102 60-140 Methyl-tert-butyl ether ug/L 19.320 97 60-140 Methylene Chloride ug/L 20.520 102 60-140 n-Butylbenzene ug/L 20.920 104 60-140 n-Propylbenzene ug/L 20.420 102 60-140 Naphthalene ug/L 20.820 104 60-140 o-Xylene ug/L 20.820 104 60-140 sec-Butylbenzene ug/L 20.520 102 60-140 Styrene ug/L 21.020 105 60-140 tert-Amyl Alcohol ug/L 386400 96 60-140 tert-Amylmethyl ether ug/L 41.140 103 60-140 tert-Butyl Alcohol ug/L 183200 91 60-140 tert-Butyl Formate ug/L 163160 102 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 29 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4231715LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 20.820 104 60-140 Tetrachloroethene ug/L 21.820 109 60-140 Toluene ug/L 20.120 100 60-140 trans-1,2-Dichloroethene ug/L 20.420 102 60-140 trans-1,3-Dichloropropene ug/L 20.620 103 60-140 Trichloroethene ug/L 21.220 106 60-140 Trichlorofluoromethane ug/L 20.120 101 60-140 Vinyl chloride ug/L 19.620 98 60-140 1,2-Dichloroethane-d4 (S)%95 70-130 4-Bromofluorobenzene (S)%101 70-130 Toluene-d8 (S)%100 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4231716MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92701721011 4231717 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 111 60-140115 3 3020<0.091 22.2 22.9 1,1,1-Trichloroethane ug/L 20 108 60-140112 4 3020<0.11 21.6 22.5 1,1,2,2-Tetrachloroethane ug/L 20 104 60-140106 2 3020<0.074 20.9 21.2 1,1,2-Trichloroethane ug/L 20 104 60-140106 2 3020<0.096 20.8 21.2 1,1-Dichloroethane ug/L 20 105 60-140109 4 3020<0.056 21.0 21.7 1,1-Dichloroethene ug/L 20 111 60-140114 3 3020<0.079 22.2 22.8 1,1-Dichloropropene ug/L 20 117 60-140121 3 3020<0.066 23.4 24.1 1,2,3-Trichlorobenzene ug/L 20 99 60-14098 1 30200.13J 19.9 19.8 1,2,3-Trichloropropane ug/L 20 105 60-140105 0 3020<0.17 21.0 20.9 1,2,4-Trichlorobenzene ug/L 20 101 60-140101 0 3020<0.16 20.2 20.3 1,2,4-Trimethylbenzene ug/L 20 109 60-140111 2 30200.064J 21.9 22.3 1,2-Dibromo-3- chloropropane ug/L 20 99 60-140101 2 3020<0.18 19.8 20.3 1,2-Dibromoethane (EDB)ug/L 20 107 60-140108 1 3020<0.15 21.3 21.5 1,2-Dichlorobenzene ug/L 20 103 60-140107 3 3020<0.094 20.7 21.4 1,2-Dichloroethane ug/L 20 99 60-140102 3 3020<0.11 19.9 20.5 1,2-Dichloropropane ug/L 20 110 60-140112 2 3020<0.14 22.0 22.4 1,3,5-Trimethylbenzene ug/L 20 109 60-140113 4 3020<0.071 21.8 22.6 1,3-Dichlorobenzene ug/L 20 106 60-140109 3 3020<0.098 21.3 21.9 1,3-Dichloropropane ug/L 20 102 60-140104 2 3020<0.085 20.4 20.8 1,4-Dichlorobenzene ug/L 20 106 60-140107 0 3020<0.090 21.2 21.3 2,2-Dichloropropane ug/L 20 112 60-140116 4 3020<0.12 22.3 23.2 2-Chlorotoluene ug/L 20 107 60-140109 2 3020<0.13 21.3 21.8 4-Chlorotoluene ug/L 20 107 60-140110 3 3020<0.096 21.5 22.1 Benzene ug/L 20 106 60-140110 3 3020<0.079 21.2 22.0 Bromobenzene ug/L 20 105 60-140109 3 3020<0.14 21.1 21.8 Bromochloromethane ug/L 20 104 60-140109 5 3020<0.094 20.8 21.8 Bromodichloromethane ug/L 20 104 60-140107 3 3020<0.17 20.7 21.4 Bromoform ug/L 20 104 60-140106 2 3020<0.20 20.8 21.1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 30 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4231716MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92701721011 4231717 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L M1205660-14064 14 3020<0.22 11.2 12.8 Carbon tetrachloride ug/L 20 113 60-140115 2 3020<0.17 22.5 23.1 Chlorobenzene ug/L 20 108 60-140110 2 3020<0.085 21.5 22.0 Chloroethane ug/L 20 121 60-140126 4 3020<0.17 24.2 25.3 Chloroform ug/L 20 103 60-140106 2 30207.2 27.8 28.5 Chloromethane ug/L 20 90 60-14093 4 3020<0.18 18.0 18.7 cis-1,2-Dichloroethene ug/L 20 106 60-140109 2 3020<0.11 21.3 21.8 cis-1,3-Dichloropropene ug/L 20 103 60-140106 3 3020<0.090 20.5 21.2 Dibromochloromethane ug/L 20 106 60-140108 2 3020<0.15 21.2 21.7 Dibromomethane ug/L 20 104 60-140107 2 3020<0.19 20.8 21.3 Dichlorodifluoromethane ug/L 20 119 60-140122 2 3020<0.12 23.9 24.4 Diisopropyl ether ug/L 20 98 60-140102 4 3020<0.072 19.6 20.5 Ethanol ug/L 800 106 60-140105 0 30800<5.0 848 847 Ethyl-tert-butyl ether ug/L 40 96 60-14099 3 3040<0.11 38.4 39.5 Ethylbenzene ug/L 20 108 60-140111 3 3020<0.081 21.5 22.1 Hexachloro-1,3-butadiene ug/L 20 107 60-140112 4 3020<0.35 21.4 22.4 Isopropylbenzene (Cumene)ug/L 20 111 60-140114 3 3020<0.11 22.2 22.8 m&p-Xylene ug/L 40 107 60-140110 3 30400.12J 42.9 44.2 Methyl-tert-butyl ether ug/L 20 94 60-14095 2 30200.21J 18.9 19.2 Methylene Chloride ug/L 20 88 60-14092 4 3020<1.9 17.6 18.4 n-Butylbenzene ug/L 20 110 60-140111 0 30200.12J 22.1 22.2 n-Propylbenzene ug/L 20 108 60-140112 4 3020<0.10 21.6 22.4 Naphthalene ug/L 20 101 60-140101 0 30200.12J 20.4 20.3 o-Xylene ug/L 20 108 60-140111 3 3020<0.14 21.6 22.2 sec-Butylbenzene ug/L 20 108 60-140111 3 3020<0.085 21.7 22.3 Styrene ug/L 20 109 60-140111 2 3020<0.14 21.7 22.2 tert-Amyl Alcohol ug/L 400 103 60-140102 1 30400<7.4 413 407 tert-Amylmethyl ether ug/L 40 100 60-140103 3 3040<0.12 40.1 41.1 tert-Butyl Alcohol ug/L 200 75 60-14071 5 30200<4.1 150 143 tert-Butyl Formate ug/L P51602960-14018 30160<0.30 45.9J 29.2J tert-Butylbenzene ug/L 20 90 60-14093 3 3020<0.086 18.1 18.6 Tetrachloroethene ug/L 20 109 60-140112 3 3020<0.086 21.8 22.4 Toluene ug/L 20 105 60-140108 3 3020<0.090 21.0 21.7 trans-1,2-Dichloroethene ug/L 20 109 60-140111 2 3020<0.10 21.8 22.3 trans-1,3-Dichloropropene ug/L 20 101 60-140104 3 3020<0.13 20.1 20.8 Trichloroethene ug/L 20 110 60-140115 4 3020<0.17 22.0 22.9 Trichlorofluoromethane ug/L 20 113 60-140115 2 3020<0.14 22.5 23.0 Vinyl chloride ug/L 20 100 60-140103 3 3020<0.15 20.0 20.6 1,2-Dichloroethane-d4 (S)%93 70-13094 4-Bromofluorobenzene (S)%101 70-130101 Toluene-d8 (S)%99 70-130101 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 31 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 817593 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92701721008 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4231737 Associated Lab Samples:92701721008 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 12/07/23 13:270.091 1,1,1-Trichloroethane ug/L <0.11 0.50 12/07/23 13:270.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 12/07/23 13:270.074 1,1,2-Trichloroethane ug/L <0.096 0.50 12/07/23 13:270.096 1,1-Dichloroethane ug/L <0.056 0.50 12/07/23 13:270.056 1,1-Dichloroethene ug/L <0.079 0.50 12/07/23 13:270.079 1,1-Dichloropropene ug/L <0.066 0.50 12/07/23 13:270.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 12/07/23 13:270.12 1,2,3-Trichloropropane ug/L <0.17 0.50 12/07/23 13:270.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 12/07/23 13:270.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 12/07/23 13:270.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 12/07/23 13:270.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 12/07/23 13:270.15 1,2-Dichlorobenzene ug/L <0.094 0.50 12/07/23 13:270.094 1,2-Dichloroethane ug/L <0.11 0.50 12/07/23 13:270.11 1,2-Dichloropropane ug/L <0.14 0.50 12/07/23 13:270.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 12/07/23 13:270.071 1,3-Dichlorobenzene ug/L <0.098 0.50 12/07/23 13:270.098 1,3-Dichloropropane ug/L <0.085 0.50 12/07/23 13:270.085 1,4-Dichlorobenzene ug/L <0.090 0.50 12/07/23 13:270.090 2,2-Dichloropropane ug/L <0.12 0.50 12/07/23 13:270.12 2-Chlorotoluene ug/L <0.13 0.50 12/07/23 13:270.13 4-Chlorotoluene ug/L <0.096 0.50 12/07/23 13:270.096 Benzene ug/L <0.079 0.50 12/07/23 13:270.079 Bromobenzene ug/L <0.14 0.50 12/07/23 13:270.14 Bromochloromethane ug/L <0.094 0.50 12/07/23 13:270.094 Bromodichloromethane ug/L <0.17 0.50 12/07/23 13:270.17 Bromoform ug/L <0.20 0.50 12/07/23 13:270.20 Bromomethane ug/L <0.22 5.0 12/07/23 13:270.22 Carbon tetrachloride ug/L <0.17 0.50 12/07/23 13:270.17 Chlorobenzene ug/L <0.085 0.50 12/07/23 13:270.085 Chloroethane ug/L <0.17 1.0 12/07/23 13:270.17 Chloroform ug/L <0.069 0.50 12/07/23 13:270.069 Chloromethane ug/L <0.18 1.0 12/07/23 13:270.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 12/07/23 13:270.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 12/07/23 13:270.090 Dibromochloromethane ug/L <0.15 0.50 12/07/23 13:270.15 Dibromomethane ug/L <0.19 0.50 12/07/23 13:270.19 Dichlorodifluoromethane ug/L <0.12 0.50 12/07/23 13:270.12 Diisopropyl ether ug/L <0.072 0.50 12/07/23 13:270.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 32 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4231737 Associated Lab Samples:92701721008 Matrix:Water AnalyzedMDL Ethanol ug/L <5.0 200 12/07/23 13:275.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 12/07/23 13:270.11 Ethylbenzene ug/L <0.081 0.50 12/07/23 13:270.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 12/07/23 13:270.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 12/07/23 13:270.11 m&p-Xylene ug/L <0.094 1.0 12/07/23 13:270.094 Methyl-tert-butyl ether ug/L <0.053 0.50 12/07/23 13:270.053 Methylene Chloride ug/L <1.9 2.0 12/07/23 13:271.9 n-Butylbenzene ug/L <0.066 0.50 12/07/23 13:270.066 n-Propylbenzene ug/L <0.10 0.50 12/07/23 13:270.10 Naphthalene ug/L <0.10 2.0 12/07/23 13:270.10 o-Xylene ug/L <0.14 0.50 12/07/23 13:270.14 sec-Butylbenzene ug/L <0.085 0.50 12/07/23 13:270.085 Styrene ug/L <0.14 0.50 12/07/23 13:270.14 tert-Amyl Alcohol ug/L <7.4 100 12/07/23 13:277.4 tert-Amylmethyl ether ug/L <0.12 10.0 12/07/23 13:270.12 tert-Butyl Alcohol ug/L <4.1 50.0 12/07/23 13:274.1 tert-Butyl Formate ug/L <0.30 50.0 12/07/23 13:270.30 tert-Butylbenzene ug/L <0.086 0.50 12/07/23 13:270.086 Tetrachloroethene ug/L <0.086 0.50 12/07/23 13:270.086 Toluene ug/L <0.090 0.50 12/07/23 13:270.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 12/07/23 13:270.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 12/07/23 13:270.13 Trichloroethene ug/L <0.17 0.50 12/07/23 13:270.17 Trichlorofluoromethane ug/L <0.14 1.0 12/07/23 13:270.14 Vinyl chloride ug/L <0.15 1.0 12/07/23 13:270.15 1,2-Dichloroethane-d4 (S)%99 70-130 12/07/23 13:27 4-Bromofluorobenzene (S)%98 70-130 12/07/23 13:27 Toluene-d8 (S)%101 70-130 12/07/23 13:27 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4231738LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 19.520 97 60-140 1,1,1-Trichloroethane ug/L 18.820 94 60-140 1,1,2,2-Tetrachloroethane ug/L 19.420 97 60-140 1,1,2-Trichloroethane ug/L 19.220 96 60-140 1,1-Dichloroethane ug/L 18.420 92 60-140 1,1-Dichloroethene ug/L 19.620 98 60-140 1,1-Dichloropropene ug/L 20.320 102 60-140 1,2,3-Trichlorobenzene ug/L 19.620 98 60-140 1,2,3-Trichloropropane ug/L 18.620 93 60-140 1,2,4-Trichlorobenzene ug/L 19.020 95 60-140 1,2,4-Trimethylbenzene ug/L 19.520 98 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 33 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4231738LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 18.120 91 60-140 1,2-Dibromoethane (EDB)ug/L 18.720 94 60-140 1,2-Dichlorobenzene ug/L 19.320 96 60-140 1,2-Dichloroethane ug/L 18.120 91 60-140 1,2-Dichloropropane ug/L 19.520 97 60-140 1,3,5-Trimethylbenzene ug/L 19.620 98 60-140 1,3-Dichlorobenzene ug/L 19.020 95 60-140 1,3-Dichloropropane ug/L 18.320 92 60-140 1,4-Dichlorobenzene ug/L 18.720 94 60-140 2,2-Dichloropropane ug/L 18.620 93 60-140 2-Chlorotoluene ug/L 19.120 95 60-140 4-Chlorotoluene ug/L 18.820 94 60-140 Benzene ug/L 18.920 95 60-140 Bromobenzene ug/L 19.020 95 60-140 Bromochloromethane ug/L 19.120 96 60-140 Bromodichloromethane ug/L 18.520 93 60-140 Bromoform ug/L 18.620 93 60-140 Bromomethane ug/L 16.120 81 60-140 Carbon tetrachloride ug/L 19.820 99 60-140 Chlorobenzene ug/L 19.020 95 60-140 Chloroethane ug/L 19.820 99 60-140 Chloroform ug/L 18.520 93 60-140 Chloromethane ug/L 16.620 83 60-140 cis-1,2-Dichloroethene ug/L 18.920 95 60-140 cis-1,3-Dichloropropene ug/L 18.520 92 60-140 Dibromochloromethane ug/L 19.220 96 60-140 Dibromomethane ug/L 18.920 95 60-140 Dichlorodifluoromethane ug/L 22.320 111 60-140 Diisopropyl ether ug/L 18.120 90 60-140 Ethanol ug/L 793800 99 60-140 Ethyl-tert-butyl ether ug/L 35.540 89 60-140 Ethylbenzene ug/L 19.220 96 60-140 Hexachloro-1,3-butadiene ug/L 20.520 102 60-140 Isopropylbenzene (Cumene)ug/L 19.920 100 60-140 m&p-Xylene ug/L 38.140 95 60-140 Methyl-tert-butyl ether ug/L 17.520 88 60-140 Methylene Chloride ug/L 15.120 76 60-140 n-Butylbenzene ug/L 19.820 99 60-140 n-Propylbenzene ug/L 19.120 96 60-140 Naphthalene ug/L 19.820 99 60-140 o-Xylene ug/L 19.020 95 60-140 sec-Butylbenzene ug/L 19.220 96 60-140 Styrene ug/L 19.520 97 60-140 tert-Amyl Alcohol ug/L 394400 99 60-140 tert-Amylmethyl ether ug/L 37.840 95 60-140 tert-Butyl Alcohol ug/L 171200 86 60-140 tert-Butyl Formate ug/L 135160 84 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 34 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4231738LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 16.120 80 60-140 Tetrachloroethene ug/L 19.020 95 60-140 Toluene ug/L 18.620 93 60-140 trans-1,2-Dichloroethene ug/L 19.220 96 60-140 trans-1,3-Dichloropropene ug/L 18.620 93 60-140 Trichloroethene ug/L 19.520 98 60-140 Trichlorofluoromethane ug/L 20.020 100 60-140 Vinyl chloride ug/L 18.020 90 60-140 1,2-Dichloroethane-d4 (S)%97 70-130 4-Bromofluorobenzene (S)%101 70-130 Toluene-d8 (S)%100 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4231739MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92701882001 4231740 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 110 60-140121 9 3020ND22.0 24.2 1,1,1-Trichloroethane ug/L 20 113 60-140124 9 3020ND22.6 24.8 1,1,2,2-Tetrachloroethane ug/L 20 106 60-140118 11 3020ND21.1 23.6 1,1,2-Trichloroethane ug/L 20 109 60-140119 9 3020ND21.7 23.8 1,1-Dichloroethane ug/L 20 115 60-140126 9 3020ND23.1 25.2 1,1-Dichloroethene ug/L 20 122 60-140130 6 3020ND24.5 26.0 1,1-Dichloropropene ug/L 20 125 60-140134 7 3020ND25.0 26.8 1,2,3-Trichlorobenzene ug/L 20 100 60-140110 10 3020ND20.0 22.1 1,2,3-Trichloropropane ug/L 20 100 60-140114 13 3020ND20.1 22.8 1,2,4-Trichlorobenzene ug/L 20 100 60-140109 8 3020ND20.0 21.7 1,2,4-Trimethylbenzene ug/L 20 110 60-140119 8 30200.046J 22.1 23.9 1,2-Dibromo-3- chloropropane ug/L 20 95 60-140111 15 3020ND19.0 22.1 1,2-Dibromoethane (EDB)ug/L 20 103 60-140116 12 3020ND20.6 23.2 1,2-Dichlorobenzene ug/L 20 107 60-140116 8 3020ND21.4 23.2 1,2-Dichloroethane ug/L 20 106 60-140116 9 3020ND21.3 23.2 1,2-Dichloropropane ug/L 20 117 60-140127 9 3020ND23.3 25.4 1,3,5-Trimethylbenzene ug/L 20 112 60-140119 6 3020ND22.5 23.9 1,3-Dichlorobenzene ug/L 20 108 60-140117 8 3020ND21.6 23.4 1,3-Dichloropropane ug/L 20 105 60-140116 10 3020ND21.0 23.3 1,4-Dichlorobenzene ug/L 20 106 60-140114 7 3020ND21.2 22.8 2,2-Dichloropropane ug/L 20 119 60-140129 8 3020ND23.8 25.8 2-Chlorotoluene ug/L 20 110 60-140117 7 3020ND22.0 23.4 4-Chlorotoluene ug/L 20 110 60-140118 7 3020ND22.0 23.6 Benzene ug/L 20 112 60-140122 8 3020ND22.5 24.4 Bromobenzene ug/L 20 106 60-140118 10 3020ND21.2 23.5 Bromochloromethane ug/L 20 111 60-140122 9 3020ND22.3 24.4 Bromodichloromethane ug/L 20 106 60-140118 11 3020ND21.3 23.7 Bromoform ug/L 20 101 60-140116 14 3020ND20.1 23.2 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 35 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4231739MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92701882001 4231740 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L 20 113 60-140120 6 3020ND22.7 24.1 Carbon tetrachloride ug/L 20 113 60-140122 8 3020ND22.5 24.5 Chlorobenzene ug/L 20 109 60-140118 8 3020ND21.7 23.6 Chloroethane ug/L 20 125 60-140135 8 3020ND25.1 27.0 Chloroform ug/L 20 112 60-140120 7 3020ND22.4 24.0 Chloromethane ug/L 20 112 60-140121 7 3020ND22.4 24.1 cis-1,2-Dichloroethene ug/L 20 116 60-140126 8 3020ND23.2 25.1 cis-1,3-Dichloropropene ug/L 20 107 60-140119 11 3020ND21.3 23.8 Dibromochloromethane ug/L 20 103 60-140116 12 3020ND20.7 23.3 Dibromomethane ug/L 20 104 60-140114 9 3020ND20.9 22.9 Dichlorodifluoromethane ug/L M12013860-140147 6 3020ND27.7 29.4 Diisopropyl ether ug/L 20 111 60-140121 8 3020ND22.2 24.1 Ethanol ug/L 800 108 60-140119 9 30800ND867950 Ethyl-tert-butyl ether ug/L 40 105 60-140115 9 3040ND42.0 46.1 Ethylbenzene ug/L 20 109 60-140118 8 3020ND21.8 23.6 Hexachloro-1,3-butadiene ug/L 20 113 60-140121 7 3020ND22.7 24.3 Isopropylbenzene (Cumene)ug/L 20 112 60-140120 7 3020ND22.5 24.1 m&p-Xylene ug/L 40 108 60-140117 8 3040ND43.4 46.8 Methyl-tert-butyl ether ug/L 20 99 60-140111 11 3020ND19.8 22.2 Methylene Chloride ug/L 20 99 60-140110 10 3020ND19.9 21.9 n-Butylbenzene ug/L 20 114 60-140120 6 3020ND22.7 24.0 n-Propylbenzene ug/L 20 112 60-140120 7 3020ND22.3 23.9 Naphthalene ug/L 20 99 60-140109 10 3020ND19.9 21.9 o-Xylene ug/L 20 109 60-140119 9 3020ND21.8 23.9 sec-Butylbenzene ug/L 20 111 60-140119 7 3020ND22.3 23.9 Styrene ug/L 20 109 60-140120 9 3020ND21.9 23.9 tert-Amyl Alcohol ug/L 400 94 60-140106 12 30400ND378425 tert-Amylmethyl ether ug/L 40 105 60-140117 11 3040ND42.0 46.8 tert-Butyl Alcohol ug/L 200 70 60-14078 11 30200ND139155 tert-Butyl Formate ug/L M11601760-14015 30160ND27.7J 23.5J tert-Butylbenzene ug/L 20 92 60-14098 7 3020ND18.3 19.7 Tetrachloroethene ug/L 20 108 60-140116 8 3020ND21.5 23.3 Toluene ug/L 20 109 60-140118 8 3020ND21.8 23.7 trans-1,2-Dichloroethene ug/L 20 121 60-140128 6 3020ND24.1 25.6 trans-1,3-Dichloropropene ug/L 20 106 60-140119 12 3020ND21.1 23.8 Trichloroethene ug/L 20 112 60-140123 9 3020ND22.4 24.6 Trichlorofluoromethane ug/L 20 121 60-140129 6 3020ND24.3 25.8 Vinyl chloride ug/L 20 118 60-140127 7 3020ND23.6 25.4 1,2-Dichloroethane-d4 (S)%96 70-13097 4-Bromofluorobenzene (S)%100 70-130101 Toluene-d8 (S)%101 70-130101 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 36 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 818002 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92701721004 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4234241 Associated Lab Samples:92701721004 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 12/09/23 02:420.091 1,1,1-Trichloroethane ug/L <0.11 0.50 12/09/23 02:420.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 12/09/23 02:420.074 1,1,2-Trichloroethane ug/L <0.096 0.50 12/09/23 02:420.096 1,1-Dichloroethane ug/L <0.056 0.50 12/09/23 02:420.056 1,1-Dichloroethene ug/L <0.079 0.50 12/09/23 02:420.079 1,1-Dichloropropene ug/L <0.066 0.50 12/09/23 02:420.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 12/09/23 02:420.12 1,2,3-Trichloropropane ug/L <0.17 0.50 12/09/23 02:420.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 12/09/23 02:420.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 12/09/23 02:420.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 12/09/23 02:420.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 12/09/23 02:420.15 1,2-Dichlorobenzene ug/L <0.094 0.50 12/09/23 02:420.094 1,2-Dichloroethane ug/L <0.11 0.50 12/09/23 02:420.11 1,2-Dichloropropane ug/L <0.14 0.50 12/09/23 02:420.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 12/09/23 02:420.071 1,3-Dichlorobenzene ug/L <0.098 0.50 12/09/23 02:420.098 1,3-Dichloropropane ug/L <0.085 0.50 12/09/23 02:420.085 1,4-Dichlorobenzene ug/L <0.090 0.50 12/09/23 02:420.090 2,2-Dichloropropane ug/L <0.12 0.50 12/09/23 02:420.12 2-Chlorotoluene ug/L <0.13 0.50 12/09/23 02:420.13 4-Chlorotoluene ug/L <0.096 0.50 12/09/23 02:420.096 Benzene ug/L <0.079 0.50 12/09/23 02:420.079 Bromobenzene ug/L <0.14 0.50 12/09/23 02:420.14 Bromochloromethane ug/L <0.094 0.50 12/09/23 02:420.094 Bromodichloromethane ug/L <0.17 0.50 12/09/23 02:420.17 Bromoform ug/L <0.20 0.50 12/09/23 02:420.20 Bromomethane ug/L <0.22 5.0 12/09/23 02:420.22 Carbon tetrachloride ug/L <0.17 0.50 12/09/23 02:420.17 Chlorobenzene ug/L <0.085 0.50 12/09/23 02:420.085 Chloroethane ug/L <0.17 1.0 12/09/23 02:420.17 Chloroform ug/L <0.069 0.50 12/09/23 02:420.069 Chloromethane ug/L <0.18 1.0 12/09/23 02:420.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 12/09/23 02:420.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 12/09/23 02:420.090 Dibromochloromethane ug/L <0.15 0.50 12/09/23 02:420.15 Dibromomethane ug/L <0.19 0.50 12/09/23 02:420.19 Dichlorodifluoromethane ug/L <0.12 0.50 12/09/23 02:420.12 Diisopropyl ether ug/L <0.072 0.50 12/09/23 02:420.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 37 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4234241 Associated Lab Samples:92701721004 Matrix:Water AnalyzedMDL Ethanol ug/L <5.0 200 12/09/23 02:425.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 12/09/23 02:420.11 Ethylbenzene ug/L <0.081 0.50 12/09/23 02:420.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 12/09/23 02:420.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 12/09/23 02:420.11 m&p-Xylene ug/L <0.094 1.0 12/09/23 02:420.094 Methyl-tert-butyl ether ug/L <0.053 0.50 12/09/23 02:420.053 Methylene Chloride ug/L <1.9 2.0 12/09/23 02:421.9 n-Butylbenzene ug/L <0.066 0.50 12/09/23 02:420.066 n-Propylbenzene ug/L <0.10 0.50 12/09/23 02:420.10 Naphthalene ug/L <0.10 2.0 12/09/23 02:420.10 o-Xylene ug/L <0.14 0.50 12/09/23 02:420.14 sec-Butylbenzene ug/L <0.085 0.50 12/09/23 02:420.085 Styrene ug/L <0.14 0.50 12/09/23 02:420.14 tert-Amyl Alcohol ug/L <7.4 100 12/09/23 02:427.4 tert-Amylmethyl ether ug/L <0.12 10.0 12/09/23 02:420.12 tert-Butyl Alcohol ug/L <4.1 50.0 12/09/23 02:424.1 tert-Butyl Formate ug/L <0.30 50.0 12/09/23 02:420.30 tert-Butylbenzene ug/L <0.086 0.50 12/09/23 02:420.086 Tetrachloroethene ug/L <0.086 0.50 12/09/23 02:420.086 Toluene ug/L <0.090 0.50 12/09/23 02:420.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 12/09/23 02:420.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 12/09/23 02:420.13 Trichloroethene ug/L <0.17 0.50 12/09/23 02:420.17 Trichlorofluoromethane ug/L <0.14 1.0 12/09/23 02:420.14 Vinyl chloride ug/L <0.15 1.0 12/09/23 02:420.15 1,2-Dichloroethane-d4 (S)%109 70-130 12/09/23 02:42 4-Bromofluorobenzene (S)%98 70-130 12/09/23 02:42 Toluene-d8 (S)%100 70-130 12/09/23 02:42 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4234242LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 21.320 106 60-140 1,1,1-Trichloroethane ug/L 22.320 111 60-140 1,1,2,2-Tetrachloroethane ug/L 23.020 115 60-140 1,1,2-Trichloroethane ug/L 22.320 111 60-140 1,1-Dichloroethane ug/L 23.020 115 60-140 1,1-Dichloroethene ug/L 22.920 115 60-140 1,1-Dichloropropene ug/L 24.620 123 60-140 1,2,3-Trichlorobenzene ug/L 18.420 92 60-140 1,2,3-Trichloropropane ug/L 21.920 109 60-140 1,2,4-Trichlorobenzene ug/L 18.220 91 60-140 1,2,4-Trimethylbenzene ug/L 22.020 110 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 38 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4234242LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 18.920 95 60-140 1,2-Dibromoethane (EDB)ug/L 22.520 113 60-140 1,2-Dichlorobenzene ug/L 21.220 106 60-140 1,2-Dichloroethane ug/L 23.620 118 60-140 1,2-Dichloropropane ug/L 22.520 112 60-140 1,3,5-Trimethylbenzene ug/L 21.920 109 60-140 1,3-Dichlorobenzene ug/L 21.020 105 60-140 1,3-Dichloropropane ug/L 21.820 109 60-140 1,4-Dichlorobenzene ug/L 20.920 105 60-140 2,2-Dichloropropane ug/L 19.320 97 60-140 2-Chlorotoluene ug/L 21.820 109 60-140 4-Chlorotoluene ug/L 22.420 112 60-140 Benzene ug/L 21.620 108 60-140 Bromobenzene ug/L 21.020 105 60-140 Bromochloromethane ug/L 22.820 114 60-140 Bromodichloromethane ug/L 21.720 108 60-140 Bromoform ug/L 19.520 97 60-140 Bromomethane ug/L 18.020 90 60-140 Carbon tetrachloride ug/L 20.420 102 60-140 Chlorobenzene ug/L 21.520 107 60-140 Chloroethane ug/L 25.020 125 60-140 Chloroform ug/L 22.620 113 60-140 Chloromethane ug/L 18.420 92 60-140 cis-1,2-Dichloroethene ug/L 23.420 117 60-140 cis-1,3-Dichloropropene ug/L 20.320 102 60-140 Dibromochloromethane ug/L 21.020 105 60-140 Dibromomethane ug/L 19.520 98 60-140 Dichlorodifluoromethane ug/L 14.420 72 60-140 Diisopropyl ether ug/L 21.120 106 60-140 Ethanol ug/L 880800 110 60-140 Ethyl-tert-butyl ether ug/L 41.940 105 60-140 Ethylbenzene ug/L 21.520 107 60-140 Hexachloro-1,3-butadiene ug/L 18.320 92 60-140 Isopropylbenzene (Cumene)ug/L 21.720 108 60-140 m&p-Xylene ug/L 43.740 109 60-140 Methyl-tert-butyl ether ug/L 20.920 105 60-140 Methylene Chloride ug/L 22.720 114 60-140 n-Butylbenzene ug/L 22.020 110 60-140 n-Propylbenzene ug/L 21.620 108 60-140 Naphthalene ug/L 18.720 94 60-140 o-Xylene ug/L 21.120 106 60-140 sec-Butylbenzene ug/L 21.620 108 60-140 Styrene ug/L 22.220 111 60-140 tert-Amyl Alcohol ug/L 367400 92 60-140 tert-Amylmethyl ether ug/L 41.040 102 60-140 tert-Butyl Alcohol ug/L 169200 85 60-140 tert-Butyl Formate ug/L 125160 78 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 39 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4234242LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 17.520 87 60-140 Tetrachloroethene ug/L 19.420 97 60-140 Toluene ug/L 20.820 104 60-140 trans-1,2-Dichloroethene ug/L 23.220 116 60-140 trans-1,3-Dichloropropene ug/L 20.620 103 60-140 Trichloroethene ug/L 20.820 104 60-140 Trichlorofluoromethane ug/L 20.820 104 60-140 Vinyl chloride ug/L 17.920 89 60-140 1,2-Dichloroethane-d4 (S)%111 70-130 4-Bromofluorobenzene (S)%104 70-130 Toluene-d8 (S)%102 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4234243MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92702293001 4234244 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 123 60-140131 7 3020ND24.5 26.2 1,1,1-Trichloroethane ug/L M12013960-140148 6 3020ND27.9 29.6 1,1,2,2-Tetrachloroethane ug/L M12012960-140142 10 3020ND25.8 28.4 1,1,2-Trichloroethane ug/L 20 127 60-140139 9 3020ND25.3 27.7 1,1-Dichloroethane ug/L M12014160-140150 6 3020ND28.1 29.9 1,1-Dichloroethene ug/L M12014860-140160 8 3020ND29.7 32.1 1,1-Dichloropropene ug/L M12015560-140163 5 3020ND31.0 32.6 1,2,3-Trichlorobenzene ug/L 20 105 60-140114 9 3020ND21.0 22.9 1,2,3-Trichloropropane ug/L 20 124 60-140136 10 3020ND24.7 27.3 1,2,4-Trichlorobenzene ug/L 20 109 60-140118 8 3020ND21.8 23.5 1,2,4-Trimethylbenzene ug/L 20 130 60-140139 7 3020ND26.0 27.8 1,2-Dibromo-3- chloropropane ug/L 20 112 60-140125 10 3020ND22.4 24.9 1,2-Dibromoethane (EDB)ug/L 20 127 60-140139 9 3020ND25.4 27.8 1,2-Dichlorobenzene ug/L 20 121 60-140129 7 3020ND24.1 25.8 1,2-Dichloroethane ug/L M12014060-140151 8 3020ND27.9 30.2 1,2-Dichloropropane ug/L M12013460-140145 8 3020ND26.9 29.0 1,3,5-Trimethylbenzene ug/L 20 130 60-140138 6 3020ND26.0 27.6 1,3-Dichlorobenzene ug/L 20 121 60-140131 8 3020ND24.2 26.2 1,3-Dichloropropane ug/L 20 127 60-140136 7 3020ND25.3 27.2 1,4-Dichlorobenzene ug/L 20 119 60-140130 9 3020ND23.8 26.0 2,2-Dichloropropane ug/L M12013860-140146 5 3020ND27.7 29.1 2-Chlorotoluene ug/L 20 128 60-140138 8 3020ND25.6 27.7 4-Chlorotoluene ug/L M12012960-140141 8 3020ND25.9 28.2 Benzene ug/L 20 128 60-140138 7 3020ND25.7 27.6 Bromobenzene ug/L 20 120 60-140129 8 3020ND24.0 25.9 Bromochloromethane ug/L M12013360-140142 6 3020ND26.6 28.4 Bromodichloromethane ug/L 20 124 60-140136 9 3020ND24.9 27.2 Bromoform ug/L 20 109 60-140120 9 3020ND21.8 23.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 40 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4234243MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92702293001 4234244 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L M12013460-140144 8 3020ND26.8 28.9 Carbon tetrachloride ug/L 20 126 60-140135 7 3020ND25.1 27.0 Chlorobenzene ug/L 20 122 60-140132 7 3020ND24.4 26.3 Chloroethane ug/L M12016060-140169 6 3020ND31.9 33.8 Chloroform ug/L M12014160-140147 4 3020ND28.2 29.4 Chloromethane ug/L M12013360-140142 6 3020ND26.7 28.4 cis-1,2-Dichloroethene ug/L M12014160-140149 6 3020ND28.1 29.7 cis-1,3-Dichloropropene ug/L 20 121 60-140132 9 3020ND24.2 26.4 Dibromochloromethane ug/L 20 120 60-140129 8 3020ND23.9 25.8 Dibromomethane ug/L 20 113 60-140122 8 3020ND22.5 24.5 Dichlorodifluoromethane ug/L 20 133 60-140138 4 3020ND26.6 27.6 Diisopropyl ether ug/L 20 129 60-140139 8 3020ND25.8 27.9 Ethanol ug/L M180012960-140145 12 30800ND10301160 Ethyl-tert-butyl ether ug/L 40 126 60-140137 8 3040ND50.5 54.8 Ethylbenzene ug/L 20 125 60-140134 8 3020ND24.9 26.9 Hexachloro-1,3-butadiene ug/L 20 120 60-140127 6 3020ND23.9 25.4 Isopropylbenzene (Cumene)ug/L 20 127 60-140136 7 3020ND25.4 27.1 m&p-Xylene ug/L 40 128 60-140136 7 3040ND51.1 54.5 Methyl-tert-butyl ether ug/L 20 123 60-140135 9 3020ND24.7 27.1 Methylene Chloride ug/L M12013460-140143 6 3020ND26.8 28.6 n-Butylbenzene ug/L M12013960-140146 5 3020ND27.8 29.3 n-Propylbenzene ug/L 20 130 60-140138 6 3020ND26.0 27.6 Naphthalene ug/L 20 111 60-140124 11 3020ND22.1 24.7 o-Xylene ug/L 20 122 60-140129 5 3020ND24.5 25.8 sec-Butylbenzene ug/L 20 132 60-140140 6 3020ND26.3 28.0 Styrene ug/L 20 126 60-140136 8 3020ND25.1 27.2 tert-Amyl Alcohol ug/L 400 103 60-140123 18 30400ND411492 tert-Amylmethyl ether ug/L 40 119 60-140131 10 3040ND47.4 52.4 tert-Butyl Alcohol ug/L M120012560-140152 19 30200ND250304 tert-Butyl Formate ug/L P51605060-14045 11 30160ND79.4 71.3 tert-Butylbenzene ug/L 20 104 60-140110 6 3020ND20.7 22.0 Tetrachloroethene ug/L 20 115 60-140123 7 3020ND23.0 24.6 Toluene ug/L 20 122 60-140133 9 3020ND24.3 26.5 trans-1,2-Dichloroethene ug/L M12014860-140157 6 3020ND29.6 31.3 trans-1,3-Dichloropropene ug/L 20 123 60-140134 9 3020ND24.6 26.9 Trichloroethene ug/L 20 123 60-140134 8 3020ND24.6 26.8 Trichlorofluoromethane ug/L M12014360-140151 6 3020ND28.5 30.3 Vinyl chloride ug/L 20 130 60-140136 5 3020ND26.1 27.3 1,2-Dichloroethane-d4 (S)%116 70-130115 4-Bromofluorobenzene (S)%103 70-130103 Toluene-d8 (S)%100 70-130102 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 41 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 818537 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92701721005, 92701721006, 92701721007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4237094 Associated Lab Samples:92701721005, 92701721006, 92701721007 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 12/10/23 14:160.091 1,1,1-Trichloroethane ug/L <0.11 0.50 12/10/23 14:160.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 12/10/23 14:160.074 1,1,2-Trichloroethane ug/L <0.096 0.50 12/10/23 14:160.096 1,1-Dichloroethane ug/L <0.056 0.50 12/10/23 14:160.056 1,1-Dichloroethene ug/L <0.079 0.50 12/10/23 14:160.079 1,1-Dichloropropene ug/L <0.066 0.50 12/10/23 14:160.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 12/10/23 14:160.12 1,2,3-Trichloropropane ug/L <0.17 0.50 12/10/23 14:160.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 12/10/23 14:160.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 12/10/23 14:160.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 12/10/23 14:160.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 12/10/23 14:160.15 1,2-Dichlorobenzene ug/L <0.094 0.50 12/10/23 14:160.094 1,2-Dichloroethane ug/L <0.11 0.50 12/10/23 14:160.11 1,2-Dichloropropane ug/L <0.14 0.50 12/10/23 14:160.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 12/10/23 14:160.071 1,3-Dichlorobenzene ug/L <0.098 0.50 12/10/23 14:160.098 1,3-Dichloropropane ug/L <0.085 0.50 12/10/23 14:160.085 1,4-Dichlorobenzene ug/L <0.090 0.50 12/10/23 14:160.090 2,2-Dichloropropane ug/L <0.12 0.50 12/10/23 14:160.12 2-Chlorotoluene ug/L <0.13 0.50 12/10/23 14:160.13 4-Chlorotoluene ug/L <0.096 0.50 12/10/23 14:160.096 Benzene ug/L <0.079 0.50 12/10/23 14:160.079 Bromobenzene ug/L <0.14 0.50 12/10/23 14:160.14 Bromochloromethane ug/L <0.094 0.50 12/10/23 14:160.094 Bromodichloromethane ug/L <0.17 0.50 12/10/23 14:160.17 Bromoform ug/L <0.20 0.50 12/10/23 14:160.20 Bromomethane ug/L <0.22 5.0 12/10/23 14:160.22 Carbon tetrachloride ug/L <0.17 0.50 12/10/23 14:160.17 Chlorobenzene ug/L <0.085 0.50 12/10/23 14:160.085 Chloroethane ug/L <0.17 1.0 12/10/23 14:160.17 Chloroform ug/L <0.069 0.50 12/10/23 14:160.069 Chloromethane ug/L <0.18 1.0 12/10/23 14:160.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 12/10/23 14:160.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 12/10/23 14:160.090 Dibromochloromethane ug/L <0.15 0.50 12/10/23 14:160.15 Dibromomethane ug/L <0.19 0.50 12/10/23 14:160.19 Dichlorodifluoromethane ug/L <0.12 0.50 12/10/23 14:160.12 Diisopropyl ether ug/L <0.072 0.50 12/10/23 14:160.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 42 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4237094 Associated Lab Samples:92701721005, 92701721006, 92701721007 Matrix:Water AnalyzedMDL Ethanol ug/L <5.0 200 12/10/23 14:165.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 12/10/23 14:160.11 Ethylbenzene ug/L <0.081 0.50 12/10/23 14:160.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 12/10/23 14:160.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 12/10/23 14:160.11 m&p-Xylene ug/L <0.094 1.0 12/10/23 14:160.094 Methyl-tert-butyl ether ug/L <0.053 0.50 12/10/23 14:160.053 Methylene Chloride ug/L <1.9 2.0 12/10/23 14:161.9 n-Butylbenzene ug/L <0.066 0.50 12/10/23 14:160.066 n-Propylbenzene ug/L <0.10 0.50 12/10/23 14:160.10 Naphthalene ug/L <0.10 2.0 12/10/23 14:160.10 o-Xylene ug/L <0.14 0.50 12/10/23 14:160.14 sec-Butylbenzene ug/L <0.085 0.50 12/10/23 14:160.085 Styrene ug/L <0.14 0.50 12/10/23 14:160.14 tert-Amyl Alcohol ug/L <7.4 100 12/10/23 14:167.4 tert-Amylmethyl ether ug/L <0.12 10.0 12/10/23 14:160.12 tert-Butyl Alcohol ug/L <4.1 50.0 12/10/23 14:164.1 tert-Butyl Formate ug/L <0.30 50.0 12/10/23 14:160.30 tert-Butylbenzene ug/L <0.086 0.50 12/10/23 14:160.086 Tetrachloroethene ug/L <0.086 0.50 12/10/23 14:160.086 Toluene ug/L <0.090 0.50 12/10/23 14:160.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 12/10/23 14:160.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 12/10/23 14:160.13 Trichloroethene ug/L <0.17 0.50 12/10/23 14:160.17 Trichlorofluoromethane ug/L <0.14 1.0 12/10/23 14:160.14 Vinyl chloride ug/L <0.15 1.0 12/10/23 14:160.15 1,2-Dichloroethane-d4 (S)%101 70-130 12/10/23 14:16 4-Bromofluorobenzene (S)%100 70-130 12/10/23 14:16 Toluene-d8 (S)%99 70-130 12/10/23 14:16 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4237095LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 21.520 108 60-140 1,1,1-Trichloroethane ug/L 20.920 105 60-140 1,1,2,2-Tetrachloroethane ug/L 20.620 103 60-140 1,1,2-Trichloroethane ug/L 21.020 105 60-140 1,1-Dichloroethane ug/L 21.720 109 60-140 1,1-Dichloroethene ug/L 22.320 112 60-140 1,1-Dichloropropene ug/L 23.220 116 60-140 1,2,3-Trichlorobenzene ug/L 20.220 101 60-140 1,2,3-Trichloropropane ug/L 19.920 100 60-140 1,2,4-Trichlorobenzene ug/L 20.220 101 60-140 1,2,4-Trimethylbenzene ug/L 21.620 108 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 43 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4237095LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 18.520 93 60-140 1,2-Dibromoethane (EDB)ug/L 20.620 103 60-140 1,2-Dichlorobenzene ug/L 20.920 104 60-140 1,2-Dichloroethane ug/L 20.520 103 60-140 1,2-Dichloropropane ug/L 22.320 112 60-140 1,3,5-Trimethylbenzene ug/L 21.720 109 60-140 1,3-Dichlorobenzene ug/L 20.920 105 60-140 1,3-Dichloropropane ug/L 20.720 104 60-140 1,4-Dichlorobenzene ug/L 20.720 104 60-140 2,2-Dichloropropane ug/L 22.320 112 60-140 2-Chlorotoluene ug/L 21.120 106 60-140 4-Chlorotoluene ug/L 21.120 106 60-140 Benzene ug/L 21.220 106 60-140 Bromobenzene ug/L 20.820 104 60-140 Bromochloromethane ug/L 21.220 106 60-140 Bromodichloromethane ug/L 20.520 103 60-140 Bromoform ug/L 20.520 102 60-140 Bromomethane ug/L 20.620 103 60-140 Carbon tetrachloride ug/L 20.620 103 60-140 Chlorobenzene ug/L 20.920 104 60-140 Chloroethane ug/L 23.720 119 60-140 Chloroform ug/L 21.220 106 60-140 Chloromethane ug/L 20.720 104 60-140 cis-1,2-Dichloroethene ug/L 21.820 109 60-140 cis-1,3-Dichloropropene ug/L 21.320 106 60-140 Dibromochloromethane ug/L 20.720 103 60-140 Dibromomethane ug/L 20.420 102 60-140 Dichlorodifluoromethane ug/L 22.120 111 60-140 Diisopropyl ether ug/L 21.720 109 60-140 Ethanol ug/L 834800 104 60-140 Ethyl-tert-butyl ether ug/L 41.340 103 60-140 Ethylbenzene ug/L 20.920 105 60-140 Hexachloro-1,3-butadiene ug/L 21.720 108 60-140 Isopropylbenzene (Cumene)ug/L 22.020 110 60-140 m&p-Xylene ug/L 42.340 106 60-140 Methyl-tert-butyl ether ug/L 19.820 99 60-140 Methylene Chloride ug/L 19.520 97 60-140 n-Butylbenzene ug/L 22.020 110 60-140 n-Propylbenzene ug/L 21.320 107 60-140 Naphthalene ug/L 20.020 100 60-140 o-Xylene ug/L 21.320 107 60-140 sec-Butylbenzene ug/L 21.320 107 60-140 Styrene ug/L 21.420 107 60-140 tert-Amyl Alcohol ug/L 386400 97 60-140 tert-Amylmethyl ether ug/L 41.840 105 60-140 tert-Butyl Alcohol ug/L 156200 78 60-140 tert-Butyl Formate ug/L 169160 105 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 44 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4237095LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 17.220 86 60-140 Tetrachloroethene ug/L 20.720 104 60-140 Toluene ug/L 20.720 104 60-140 trans-1,2-Dichloroethene ug/L 22.520 112 60-140 trans-1,3-Dichloropropene ug/L 21.020 105 60-140 Trichloroethene ug/L 21.420 107 60-140 Trichlorofluoromethane ug/L 21.020 105 60-140 Vinyl chloride ug/L 21.020 105 60-140 1,2-Dichloroethane-d4 (S)%96 70-130 4-Bromofluorobenzene (S)%102 70-130 Toluene-d8 (S)%100 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4237096MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92701775004 4237097 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 112 60-140104 8 3020<0.091 22.5 20.8 1,1,1-Trichloroethane ug/L 20 116 60-140104 10 3020<0.11 23.2 20.9 1,1,2,2-Tetrachloroethane ug/L 20 111 60-140100 10 3020<0.074 22.1 19.9 1,1,2-Trichloroethane ug/L 20 112 60-14098 13 3020<0.096 22.3 19.6 1,1-Dichloroethane ug/L 20 117 60-140106 9 3020<0.056 23.3 21.2 1,1-Dichloroethene ug/L 20 125 60-140114 9 3020<0.079 25.0 22.8 1,1-Dichloropropene ug/L 20 127 60-140115 10 3020<0.066 25.4 23.0 1,2,3-Trichlorobenzene ug/L 20 101 60-14096 5 3020<0.12 20.1 19.1 1,2,3-Trichloropropane ug/L 20 105 60-14095 9 3020<0.17 21.0 19.1 1,2,4-Trichlorobenzene ug/L 20 100 60-14096 4 3020<0.16 20.1 19.2 1,2,4-Trimethylbenzene ug/L 20 114 60-140105 8 3020<0.031 22.8 21.1 1,2-Dibromo-3- chloropropane ug/L 20 98 60-14092 7 3020<0.18 19.7 18.4 1,2-Dibromoethane (EDB)ug/L 20 108 60-14097 11 3020<0.15 21.6 19.4 1,2-Dichlorobenzene ug/L 20 108 60-140102 6 3020<0.094 21.5 20.3 1,2-Dichloroethane ug/L 20 109 60-14098 11 3020<0.11 21.8 19.6 1,2-Dichloropropane ug/L 20 119 60-140107 11 3020<0.14 23.9 21.3 1,3,5-Trimethylbenzene ug/L 20 114 60-140106 8 3020<0.071 22.8 21.2 1,3-Dichlorobenzene ug/L 20 108 60-140103 4 3020<0.098 21.6 20.7 1,3-Dichloropropane ug/L 20 109 60-14099 9 3020<0.085 21.7 19.8 1,4-Dichlorobenzene ug/L 20 108 60-140101 7 3020<0.090 21.7 20.2 2,2-Dichloropropane ug/L 20 122 60-140110 11 3020<0.12 24.4 22.0 2-Chlorotoluene ug/L 20 112 60-140104 7 3020<0.13 22.4 20.9 4-Chlorotoluene ug/L 20 114 60-140103 10 3020<0.096 22.7 20.6 Benzene ug/L 20 115 60-140103 10 3020<0.079 22.9 20.7 Bromobenzene ug/L 20 110 60-140101 9 3020<0.14 22.0 20.1 Bromochloromethane ug/L 20 113 60-140101 11 3020<0.094 22.5 20.3 Bromodichloromethane ug/L 20 108 60-14097 11 3020<0.17 21.6 19.4 Bromoform ug/L 20 105 60-14095 10 3020<0.20 20.9 19.0 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 45 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4237096MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92701775004 4237097 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L 20 110 60-140106 4 3020<0.22 22.1 21.2 Carbon tetrachloride ug/L 20 116 60-140103 12 3020<0.17 23.2 20.6 Chlorobenzene ug/L 20 111 60-140102 9 3020<0.085 22.2 20.4 Chloroethane ug/L 20 130 60-140118 10 3020<0.17 26.1 23.5 Chloroform ug/L 20 112 60-140101 10 3020<0.069 22.4 20.3 Chloromethane ug/L 20 114 60-140101 12 3020<0.18 22.9 20.3 cis-1,2-Dichloroethene ug/L 20 118 60-140106 11 3020<0.11 23.5 21.2 cis-1,3-Dichloropropene ug/L 20 110 60-14099 11 3020<0.090 22.0 19.7 Dibromochloromethane ug/L 20 106 60-14097 9 3020<0.15 21.3 19.4 Dibromomethane ug/L 20 106 60-14095 11 3020<0.19 21.2 19.0 Dichlorodifluoromethane ug/L M12014160-140125 12 3020<0.12 28.1 25.0 Diisopropyl ether ug/L 20 111 60-14099 12 3020<0.072 22.1 19.7 Ethanol ug/L 800 113 60-140100 12 30800<5.0 906 802 Ethyl-tert-butyl ether ug/L 40 105 60-14094 12 3040<0.11 42.0 37.4 Ethylbenzene ug/L 20 113 60-140103 9 3020<0.081 22.5 20.6 Hexachloro-1,3-butadiene ug/L 20 111 60-140104 6 3020<0.35 22.1 20.9 Isopropylbenzene (Cumene)ug/L 20 114 60-140105 8 3020<0.11 22.8 21.1 m&p-Xylene ug/L 40 111 60-140102 8 3040<0.094 44.6 41.0 Methyl-tert-butyl ether ug/L 20 101 60-14090 11 3020<0.053 20.1 18.0 Methylene Chloride ug/L 20 102 60-14091 12 3020<1.9 20.3 18.1 n-Butylbenzene ug/L 20 115 60-140108 6 3020<0.066 23.0 21.6 n-Propylbenzene ug/L 20 114 60-140105 8 3020<0.10 22.8 21.0 Naphthalene ug/L 20 101 60-14096 5 3020<0.10 20.2 19.3 o-Xylene ug/L 20 111 60-140102 8 3020<0.14 22.1 20.5 sec-Butylbenzene ug/L 20 112 60-140104 7 3020<0.085 22.5 20.9 Styrene ug/L 20 113 60-140103 9 3020<0.14 22.6 20.6 tert-Amyl Alcohol ug/L 400 100 60-14090 11 30400<7.4 400 360 tert-Amylmethyl ether ug/L 40 107 60-14096 11 3040<0.12 42.9 38.3 tert-Butyl Alcohol ug/L 200 75 60-14067 12 30200<4.1 150 133 tert-Butyl Formate ug/L M11603160-14022 30160<0.30 49.1J 35.1J tert-Butylbenzene ug/L 20 93 60-14086 8 3020<0.086 18.6 17.2 Tetrachloroethene ug/L 20 110 60-140102 8 3020<0.086 21.9 20.3 Toluene ug/L 20 112 60-140100 11 3020<0.090 22.4 20.0 trans-1,2-Dichloroethene ug/L 20 122 60-140110 10 3020<0.10 24.3 22.1 trans-1,3-Dichloropropene ug/L 20 108 60-14097 11 3020<0.13 21.7 19.3 Trichloroethene ug/L 20 115 60-140103 11 3020<0.17 23.1 20.6 Trichlorofluoromethane ug/L 20 125 60-140113 9 3020<0.14 24.9 22.7 Vinyl chloride ug/L 20 122 60-140110 10 3020<0.15 24.4 22.0 1,2-Dichloroethane-d4 (S)%100 70-13097 4-Bromofluorobenzene (S)%99 70-130100 Toluene-d8 (S)%100 70-130101 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 46 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 818660 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92701721001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4237620 Associated Lab Samples:92701721001 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 12/11/23 12:330.091 1,1,1-Trichloroethane ug/L <0.11 0.50 12/11/23 12:330.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 12/11/23 12:330.074 1,1,2-Trichloroethane ug/L <0.096 0.50 12/11/23 12:330.096 1,1-Dichloroethane ug/L <0.056 0.50 12/11/23 12:330.056 1,1-Dichloroethene ug/L <0.079 0.50 12/11/23 12:330.079 1,1-Dichloropropene ug/L <0.066 0.50 12/11/23 12:330.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 12/11/23 12:330.12 1,2,3-Trichloropropane ug/L <0.17 0.50 12/11/23 12:330.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 12/11/23 12:330.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 12/11/23 12:330.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 12/11/23 12:330.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 12/11/23 12:330.15 1,2-Dichlorobenzene ug/L <0.094 0.50 12/11/23 12:330.094 1,2-Dichloroethane ug/L <0.11 0.50 12/11/23 12:330.11 1,2-Dichloropropane ug/L <0.14 0.50 12/11/23 12:330.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 12/11/23 12:330.071 1,3-Dichlorobenzene ug/L <0.098 0.50 12/11/23 12:330.098 1,3-Dichloropropane ug/L <0.085 0.50 12/11/23 12:330.085 1,4-Dichlorobenzene ug/L <0.090 0.50 12/11/23 12:330.090 2,2-Dichloropropane ug/L <0.12 0.50 12/11/23 12:330.12 2-Chlorotoluene ug/L <0.13 0.50 12/11/23 12:330.13 4-Chlorotoluene ug/L <0.096 0.50 12/11/23 12:330.096 Benzene ug/L <0.079 0.50 12/11/23 12:330.079 Bromobenzene ug/L <0.14 0.50 12/11/23 12:330.14 Bromochloromethane ug/L <0.094 0.50 12/11/23 12:330.094 Bromodichloromethane ug/L <0.17 0.50 12/11/23 12:330.17 Bromoform ug/L <0.20 0.50 12/11/23 12:330.20 Bromomethane ug/L <0.22 5.0 12/11/23 12:330.22 Carbon tetrachloride ug/L <0.17 0.50 12/11/23 12:330.17 Chlorobenzene ug/L <0.085 0.50 12/11/23 12:330.085 Chloroethane ug/L <0.17 1.0 12/11/23 12:330.17 Chloroform ug/L <0.069 0.50 12/11/23 12:330.069 Chloromethane ug/L <0.18 1.0 12/11/23 12:330.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 12/11/23 12:330.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 12/11/23 12:330.090 Dibromochloromethane ug/L <0.15 0.50 12/11/23 12:330.15 Dibromomethane ug/L <0.19 0.50 12/11/23 12:330.19 Dichlorodifluoromethane ug/L <0.12 0.50 12/11/23 12:330.12 Diisopropyl ether ug/L <0.072 0.50 12/11/23 12:330.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 47 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4237620 Associated Lab Samples:92701721001 Matrix:Water AnalyzedMDL Ethanol ug/L <5.0 200 12/11/23 12:335.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 12/11/23 12:330.11 Ethylbenzene ug/L <0.081 0.50 12/11/23 12:330.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 12/11/23 12:330.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 12/11/23 12:330.11 m&p-Xylene ug/L <0.094 1.0 12/11/23 12:330.094 Methyl-tert-butyl ether ug/L <0.053 0.50 12/11/23 12:330.053 Methylene Chloride ug/L <1.9 2.0 12/11/23 12:331.9 n-Butylbenzene ug/L <0.066 0.50 12/11/23 12:330.066 n-Propylbenzene ug/L <0.10 0.50 12/11/23 12:330.10 Naphthalene ug/L <0.10 2.0 12/11/23 12:330.10 o-Xylene ug/L <0.14 0.50 12/11/23 12:330.14 sec-Butylbenzene ug/L <0.085 0.50 12/11/23 12:330.085 Styrene ug/L <0.14 0.50 12/11/23 12:330.14 tert-Amyl Alcohol ug/L <7.4 100 12/11/23 12:337.4 tert-Amylmethyl ether ug/L <0.12 10.0 12/11/23 12:330.12 tert-Butyl Alcohol ug/L <4.1 50.0 12/11/23 12:334.1 tert-Butyl Formate ug/L <0.30 50.0 12/11/23 12:330.30 tert-Butylbenzene ug/L <0.086 0.50 12/11/23 12:330.086 Tetrachloroethene ug/L <0.086 0.50 12/11/23 12:330.086 Toluene ug/L <0.090 0.50 12/11/23 12:330.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 12/11/23 12:330.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 12/11/23 12:330.13 Trichloroethene ug/L <0.17 0.50 12/11/23 12:330.17 Trichlorofluoromethane ug/L <0.14 1.0 12/11/23 12:330.14 Vinyl chloride ug/L <0.15 1.0 12/11/23 12:330.15 1,2-Dichloroethane-d4 (S)%100 70-130 12/11/23 12:33 4-Bromofluorobenzene (S)%98 70-130 12/11/23 12:33 Toluene-d8 (S)%100 70-130 12/11/23 12:33 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4237621LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 20.520 103 60-140 1,1,1-Trichloroethane ug/L 19.720 98 60-140 1,1,2,2-Tetrachloroethane ug/L 21.220 106 60-140 1,1,2-Trichloroethane ug/L 20.520 103 60-140 1,1-Dichloroethane ug/L 20.020 100 60-140 1,1-Dichloroethene ug/L 20.820 104 60-140 1,1-Dichloropropene ug/L 21.520 108 60-140 1,2,3-Trichlorobenzene ug/L 21.120 106 60-140 1,2,3-Trichloropropane ug/L 19.720 98 60-140 1,2,4-Trichlorobenzene ug/L 20.720 104 60-140 1,2,4-Trimethylbenzene ug/L 21.420 107 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 48 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4237621LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 20.020 100 60-140 1,2-Dibromoethane (EDB)ug/L 19.920 99 60-140 1,2-Dichlorobenzene ug/L 20.720 104 60-140 1,2-Dichloroethane ug/L 19.520 98 60-140 1,2-Dichloropropane ug/L 21.420 107 60-140 1,3,5-Trimethylbenzene ug/L 21.120 105 60-140 1,3-Dichlorobenzene ug/L 20.620 103 60-140 1,3-Dichloropropane ug/L 20.220 101 60-140 1,4-Dichlorobenzene ug/L 20.320 101 60-140 2,2-Dichloropropane ug/L 20.620 103 60-140 2-Chlorotoluene ug/L 20.720 103 60-140 4-Chlorotoluene ug/L 20.620 103 60-140 Benzene ug/L 20.020 100 60-140 Bromobenzene ug/L 20.220 101 60-140 Bromochloromethane ug/L 20.220 101 60-140 Bromodichloromethane ug/L 19.720 98 60-140 Bromoform ug/L 20.120 101 60-140 Bromomethane ug/L 18.720 94 60-140 Carbon tetrachloride ug/L 20.020 100 60-140 Chlorobenzene ug/L 20.020 100 60-140 Chloroethane ug/L 22.020 110 60-140 Chloroform ug/L 19.920 99 60-140 Chloromethane ug/L 19.620 98 60-140 cis-1,2-Dichloroethene ug/L 20.420 102 60-140 cis-1,3-Dichloropropene ug/L 20.520 103 60-140 Dibromochloromethane ug/L 20.320 102 60-140 Dibromomethane ug/L 19.620 98 60-140 Dichlorodifluoromethane ug/L 23.320 116 60-140 Diisopropyl ether ug/L 19.920 99 60-140 Ethanol ug/L 858800 107 60-140 Ethyl-tert-butyl ether ug/L 38.540 96 60-140 Ethylbenzene ug/L 20.020 100 60-140 Hexachloro-1,3-butadiene ug/L 21.920 109 60-140 Isopropylbenzene (Cumene)ug/L 20.920 105 60-140 m&p-Xylene ug/L 40.040 100 60-140 Methyl-tert-butyl ether ug/L 19.020 95 60-140 Methylene Chloride ug/L 17.520 87 60-140 n-Butylbenzene ug/L 21.620 108 60-140 n-Propylbenzene ug/L 20.720 104 60-140 Naphthalene ug/L 21.420 107 60-140 o-Xylene ug/L 20.320 102 60-140 sec-Butylbenzene ug/L 20.820 104 60-140 Styrene ug/L 20.720 104 60-140 tert-Amyl Alcohol ug/L 409400 102 60-140 tert-Amylmethyl ether ug/L 40.440 101 60-140 tert-Butyl Alcohol ug/L 154200 77 60-140 tert-Butyl Formate ug/L 162160 101 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 49 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4237621LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 17.120 86 60-140 Tetrachloroethene ug/L 19.820 99 60-140 Toluene ug/L 19.620 98 60-140 trans-1,2-Dichloroethene ug/L 20.920 105 60-140 trans-1,3-Dichloropropene ug/L 20.220 101 60-140 Trichloroethene ug/L 20.120 101 60-140 Trichlorofluoromethane ug/L 21.320 106 60-140 Vinyl chloride ug/L 20.020 100 60-140 1,2-Dichloroethane-d4 (S)%97 70-130 4-Bromofluorobenzene (S)%101 70-130 Toluene-d8 (S)%100 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4237622MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92702550006 4237623 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 110 60-140121 9 3020<0.091 21.9 24.1 1,1,1-Trichloroethane ug/L 20 111 60-140117 6 3020<0.11 22.1 23.4 1,1,2,2-Tetrachloroethane ug/L 20 103 60-140120 16 3020<0.074 20.5 24.0 1,1,2-Trichloroethane ug/L 20 103 60-140118 13 3020<0.096 20.7 23.6 1,1-Dichloroethane ug/L 20 114 60-140121 6 3020<0.056 22.8 24.2 1,1-Dichloroethene ug/L 20 122 60-140123 0 3020<0.079 24.5 24.6 1,1-Dichloropropene ug/L 20 125 60-140129 3 3020<0.066 25.1 25.7 1,2,3-Trichlorobenzene ug/L 20 96 60-140112 15 3020<0.12 19.2 22.3 1,2,3-Trichloropropane ug/L 20 98 60-140114 15 3020<0.17 19.6 22.9 1,2,4-Trichlorobenzene ug/L 20 98 60-140111 12 3020<0.16 19.7 22.1 1,2,4-Trimethylbenzene ug/L 20 113 60-140124 9 30200.59 23.2 25.3 1,2-Dibromo-3- chloropropane ug/L 20 88 60-140109 22 3020<0.18 17.5 21.9 1,2-Dibromoethane (EDB)ug/L 20 102 60-140116 13 3020<0.15 20.4 23.2 1,2-Dichlorobenzene ug/L 20 106 60-140120 12 3020<0.094 21.3 23.9 1,2-Dichloroethane ug/L 20 103 60-140115 11 3020<0.11 20.6 22.9 1,2-Dichloropropane ug/L 20 113 60-140127 12 3020<0.14 22.6 25.5 1,3,5-Trimethylbenzene ug/L 20 114 60-140122 6 30200.22J 23.1 24.6 1,3-Dichlorobenzene ug/L 20 109 60-140120 10 3020<0.098 21.8 24.1 1,3-Dichloropropane ug/L 20 104 60-140119 13 3020<0.085 20.9 23.8 1,4-Dichlorobenzene ug/L 20 107 60-140118 10 3020<0.090 21.4 23.7 2,2-Dichloropropane ug/L 20 116 60-140124 7 3020<0.12 23.1 24.9 2-Chlorotoluene ug/L 20 112 60-140121 8 3020<0.13 22.4 24.2 4-Chlorotoluene ug/L 20 114 60-140123 7 3020<0.096 22.8 24.5 Benzene ug/L 20 110 60-140119 8 30200.10J 22.1 23.8 Bromobenzene ug/L 20 108 60-140118 9 3020<0.14 21.5 23.5 Bromochloromethane ug/L 20 106 60-140118 11 3020<0.094 21.3 23.6 Bromodichloromethane ug/L 20 102 60-140114 11 3020<0.17 20.4 22.9 Bromoform ug/L 20 94 60-140112 18 3020<0.20 18.9 22.5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 50 of 57 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4237622MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92702550006 4237623 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L 20 109 60-140107 2 3020<0.22 21.7 21.3 Carbon tetrachloride ug/L 20 110 60-140115 5 3020<0.17 22.0 23.1 Chlorobenzene ug/L 20 109 60-140118 8 3020<0.085 21.8 23.6 Chloroethane ug/L 20 126 60-140131 4 3020<0.17 25.2 26.1 Chloroform ug/L 20 108 60-140121 11 3020<0.069 21.7 24.2 Chloromethane ug/L 20 109 60-140110 1 3020<0.18 21.8 22.0 cis-1,2-Dichloroethene ug/L 20 115 60-140123 7 3020<0.11 23.0 24.6 cis-1,3-Dichloropropene ug/L 20 103 60-140117 12 3020<0.090 20.6 23.3 Dibromochloromethane ug/L 20 100 60-140114 13 3020<0.15 20.0 22.9 Dibromomethane ug/L 20 98 60-140114 14 3020<0.19 19.7 22.7 Dichlorodifluoromethane ug/L 20 130 60-140127 2 3020<0.12 25.9 25.4 Diisopropyl ether ug/L 20 108 60-140119 10 3020<0.072 21.6 23.9 Ethanol ug/L 800 99 60-140131 27 30800<5.0 794 1050 Ethyl-tert-butyl ether ug/L 40 101 60-140113 11 3040<0.11 40.4 45.3 Ethylbenzene ug/L 20 111 60-140119 7 3020<0.081 22.3 23.8 Hexachloro-1,3-butadiene ug/L 20 112 60-140119 6 3020<0.35 22.3 23.8 Isopropylbenzene (Cumene)ug/L 20 114 60-140122 7 3020<0.11 22.8 24.4 m&p-Xylene ug/L 40 110 60-140117 6 30401.7 45.5 48.5 Methyl-tert-butyl ether ug/L 20 95 60-140108 13 3020<0.053 19.0 21.6 Methylene Chloride ug/L 20 101 60-140110 9 3020<1.9 20.2 22.1 n-Butylbenzene ug/L 20 117 60-140125 6 3020<0.066 23.5 25.0 n-Propylbenzene ug/L 20 116 60-140122 5 3020<0.10 23.3 24.5 Naphthalene ug/L 20 94 60-140114 19 30200.21J 19.0 23.0 o-Xylene ug/L 20 110 60-140119 8 30200.57 22.5 24.4 sec-Butylbenzene ug/L 20 115 60-140119 4 3020<0.085 23.0 23.9 Styrene ug/L 20 111 60-140119 7 3020<0.14 22.1 23.8 tert-Amyl Alcohol ug/L 400 87 60-140110 23 30400<7.4 349 440 tert-Amylmethyl ether ug/L 40 99 60-140114 14 3040<0.12 39.6 45.8 tert-Butyl Alcohol ug/L 200 67 60-14082 19 30200<4.1 135 164 tert-Butyl Formate ug/L M11604560-14040 14 30160<0.30 72.6 63.3 tert-Butylbenzene ug/L 20 93 60-140100 7 3020<0.086 18.6 19.9 Tetrachloroethene ug/L 20 111 60-140115 4 3020<0.086 22.2 23.0 Toluene ug/L 20 106 60-140116 9 3020<0.090 21.2 23.2 trans-1,2-Dichloroethene ug/L 20 120 60-140125 4 3020<0.10 24.0 25.1 trans-1,3-Dichloropropene ug/L 20 102 60-140116 13 3020<0.13 20.4 23.3 Trichloroethene ug/L 20 111 60-140119 7 3020<0.17 22.1 23.7 Trichlorofluoromethane ug/L 20 121 60-140121 0 3020<0.14 24.2 24.2 Vinyl chloride ug/L 20 115 60-140116 1 3020<0.15 22.9 23.2 1,2-Dichloroethane-d4 (S)%98 70-13099 4-Bromofluorobenzene (S)%100 70-130100 Toluene-d8 (S)%101 70-130101 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 51 of 57 #=QL# QUALIFIERS Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Result may be biased high due to carryover from previously analyzed sample.C8 Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 The EPA or method required sample preservation degrades this compound, therefore acceptable recoveries may not be achieved in sample matrix spikes.P5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 52 of 57 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92701721 GWQS CK 3957 GASTONIA NC Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92701721001 818660MW-1 SM 6200B 92701721002 817584MW-3 SM 6200B 92701721003 817584MW-5 SM 6200B 92701721004 818002MW-8 SM 6200B 92701721005 818537MW-10 SM 6200B 92701721006 818537MW-11 SM 6200B 92701721007 818537MW-12 SM 6200B 92701721008 817593MW-14 SM 6200B 92701721009 817584AS-1 SM 6200B 92701721010 817584AS-2 SM 6200B 92701721011 817584DMW-1 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/12/2023 03:07 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 53 of 57 Page 54 of 57 Page 55 of 57 Page 56 of 57 Page 57 of 57