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HomeMy WebLinkAboutRA-918_6174_CA_MRP_20230731_Final 2725 E. Millbrook Road, Suite 121 Raleigh, NC 27604 Telephone 919-871-0999 www.atcgroupservices.com July 31, 2023 Ms. Kristie Oseguera North Carolina Department of Environmental Quality Division of Waste Management – Underground Storage Tank Section 1646 Mail Service Center Raleigh, North Carolina 27699 Re: Groundwater Monitoring Report Middleburg Grocery Northwest Corner of US Highway 1/NC Highway 158 & North Hawkins Avenue Middleburg, Vance County, North Carolina NCDEQ Incident No. 6174 ATC Project No. STL0617401 Dear Ms. Oseguera: ATC Associates of North Carolina, P.C. (ATC) is submitting the enclosed Groundwater Monitoring Report for the Middleburg Grocery. The report documents the assessment activities conducted May through June 2023. If you have any questions or require additional information, please contact our office at (919) 871-0999. Sincerely, ATC Associates of North Carolina, P.C. Corinne Lally Gabriel Araos, P.E. Project Scientist Senior Project Manager Direct Line: 919-948-7379 Direct Line: 919-573-1205 Email: corinne.lally@oneatlas.com Email: gabe.araos@oneatlas.com Attachments: 1. Groundwater Monitoring Report Prepared for: North Carolina Department of Environmental Quality Division of Waste Management – Underground Storage Tank Section 1646 Mail Service Center Raleigh, North Carolina 27699 GROUNDWATER MONITORING REPORT Middleburg Grocery Northwest Corner of US Highway 1/NC Highway 158 & North Hawkins Avenue Middleburg, Vance County, North Carolina Incident 6174 ATC Project No. STL0617401 Prepared by: ATC Associates of North Carolina, P.C. 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina 27604 Telephone 919-871-0999 Corinne Lally Project Scientist Direct Line: 919-948-7379 Email: corinne.lally@oneatlas.com Gabriel Araos, P.E. Senior Project Manager Direct Line: 919-573-1205 Email: gabe.araos@oneatlas.com July 31, 2023 Middleburg Grocery July 31, 2023 Page i ATC Project No. STL0617401 NCDEQ State Lead Program TABLE OF CONTENTS 1.0 SITE IDENTIFICATION ............................................................................... 1 2.0 EXECUTIVE SUMMARY ............................................................................. 2 3.0 SITE DESCRIPTION ................................................................................... 3 3.1 Site Characterization .................................................................... 3 3.2 Site Background ........................................................................... 3 4.0 FIELD ACTIVITIES ..................................................................................... 9 4.1 Soil Borings and Monitoring Well Installation ............................... 9 4.2 Groundwater Levels ..................................................................... 9 5.0 ANALYTICAL RESULTS ............................................................................ 9 5.1 Soil Analytical Results .................................................................. 9 5.2 Groundwater Quality .................................................................... 10 5.3 Water Supply Wells ...................................................................... 11 6.0 CONCLUSIONS AND RECOMMENDATIONS ........................................... 11 TABLES Table 1 Water Supply Well Ownership Information Table 2 Monitoring Well Construction Details and Current Groundwater Elevations Table 3 Soil Analytical Results Table 4 Current Groundwater Analytical Results Table 5 Historical Groundwater Analytical Results Table 6 Natural Attenuation Parameters Table 7 Historical Water Supply Well Analytical Results FIGURES Figure 1 Topographic Map Figure 2 Site Map Figure 3 Water Supply Well Location Map Figure 4 Groundwater Elevation Contour Map Figure 5 Soil Analytical Results Figure 6 Dissolved Benzene Isoconcentration Map Figure 7 Additional Contaminants of Concern in Groundwater APPENDICES Appendix A Conceptual Site Map Appendix B Field Notes Appendix C Well Construction Records and Boring Logs Appendix D Access Agreement and Monitoring Well Permit Appendix E Photo log Appendix F Laboratory Analytical Results Middleburg Grocery July 31, 2023 Page 1 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program 1.0 SITE IDENTIFICATION 1. Site Identification Date of Report: 7/31/2023 UST Number (if known): RA-918 Facility I.D.: Unknown UST Incident Number (if known): 6174 Site Risk: High Site Rank: H1102D Land Use Category: Commercial Site Name: Middleburg Grocery Site Street Address: NW Corner of US Highway 1/NC Highway 158 & North Hawkins Avenue City/Town: Middleburg Zip Code: 27537 County: Vance Description of Geographical Data Point: Former USTs Location Method: Topographic Map Latitude (decimal degrees): 36.398464 N Longitude (decimal degrees): -78.323876 W 2. Information about Contacts Associated with the Leaking UST System UST Owner: William Wortham Address: P.O. Box 1452, Henderson, NC 27536 Tel.: Unknown UST Operator: Middleburg Grocery Address: NW Corner of US Hwy 1/NC Hwy 158 & N. Hawkins Ave. Tel. Unknown Property Owner: Nancy Nasher Address: 1781 Bullocksville Park Road, Manson, NC 27553 Tel.: Unknown Property Occupant: Vacant Address: Unaddressed Tel.: Not Applicable Consultant/Contractor: ATC Associates of North Carolina, P.C. Address: 2725 E. Millbrook Road, Suite 121, Raleigh, NC 27604 Tel.: (919) 871-0999 Analytical Laboratory: Pace Analytical Inc. State Certification No. 371 Address: 12065 Lebanon Road, Mount Juliet, TN, 37122 Tel: 615-758-5858 3. Information about Release Date Discovered: December 1990 Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release (Dispenser/Piping/UST): USTs and ASTs Sizes and contents of UST system(s) from which the release occurred: One 280-gallon kerosene UST, two 550-gallon gasoline USTs, and three 1,000-gallon gasoline USTs Criteria Used to Classify Risk: Ten potable water supply wells located within 1,000 feet of the site 4. Information about the Monitoring Report Date(s) of Groundwater Monitoring Events(s): 8/12/2022 5. Certification I, Gabriel Araos, a Professional Engineer/Licensed Geologist (circle one) 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/engineering (circle one or both) in North Carolina. The certification number of the company or corporation is C-274 and C1598. Middleburg Grocery July 31, 2023 Page 2 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program 2.0 EXECUTIVE SUMMARY ATC Associates of North Carolina, P.C. (ATC) has completed a Groundwater Monitoring Report for the Middleburg Grocery site. This report documents the May 25 through May 26, 2023, soil borings and monitoring well installation activities and the June 2023 groundwater monitoring event at Middleburg Grocery located at the northwest corner of US Highway 1/NC Highway 158 and North Hawkins Avenue in Middleburg, Vance County, North Carolina. These activities were performed based on a March 29, 2023, Task Authorization (TA-01) by the Trust Fund Branch of the Underground Storage Tank (UST) Section, Division of Waste Management, North Carolina Department of Environmental Quality (NCDEQ). This work is being performed as part of State Lead Contract #N70522-B between NCDEQ and ATC. The former Middleburg Grocery is located at the northwest corner of US Highway 1/NC Highway 158 and North Hawkins Avenue in Middleburg, Vance County, North Carolina. In December 1990, the NCDEQ identified the Middleburg Grocery Site (Incident #6174) and the Middleburg Variety (Incident #49089) as potential sources of petroleum contamination due to the operation of USTs at each of the sites. The Middleburg Variety is located approximately 290 feet northeast of the Middleburg Grocery site. The Middleburg Grocery site consists of a one-story building with gravel parking and is currently vacant. The former UST system at the Middleburg Grocery site included two 550-gallon gasoline USTs and three 1,000- gallon gasoline USTs which were removed in April 1991. Additionally, one 280-gallon kerosene UST was removed in June 2004. The Middleburg Variety site is an active convenience store. In May 1992, Environmental Aspects, Inc. (EAI) removed one 1,000-gallon kerosene UST, one 1,000-gallon diesel UST, and one 6,000-gallon gasoline UST from the Middleburg Variety site. Sixteen monitoring wells (MW-1R, MW- 2R, MW-4R, MW-5R, MW-6, MW-7R, MW-10, MW-11R, MW-12, MW-13, MW-14, MW-15, MW-16, MW-17, and MW-18, and DW-1) are located at the sites. Fourteen water supply wells are located within 1,000 feet of the Middleburg Grocery site. The following site conditions are noted based on the recent and historical assessment activities and the conceptual site model (Appendix A):  The site is classified as “High” risk due to the presence of fourteen water supply wells located within 1,000 feet of the site. However, none of the water supply wells appear to be at risk due to their location (upgradient or cross gradient) and their distance to the site;  On May 25 and May 26, 2023, ATC personnel mobilized to the site to supervise the advance of six soil borings (SB-1 through SB-6), and installation of two Type II monitoring wells (MW-17 and MW-18) to delineate the extent of impacted soil and groundwater;  On June 1, 2023, ATC personnel mobilized to collect groundwater samples from MW-1R, MW-2R, MW-4R, MW-5R, MW-11R, MW-12, MW-13, MW-16, MW-17, and MW-18. ATC was unable to sample well MW-6 due to the presence of a large ant nest;  The soil analytical results indicate petroleum impacts exceeding the soil-to-groundwater MSCCs SB-2, SB-5, and SB-6. Compounds exceeded both the soil-to-groundwater MSCCs and the residential MSCCs in SB-5 and SB-6. The analytical soil results indicate potential source area impact (SB-2) in the area near MW-5R and impacts (SB-5 and SB-6) from the former UST system at the Middelburg Variety site; Middleburg Grocery July 31, 2023 Page 3 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program  The groundwater analytical results indicate petroleum hydrocarbon compounds at concentrations exceeding 2L Standards in monitoring wells MW-1R, MW-4R, MW-5R, MW-11R, MW-12, and MW- 16;  The downgradient extent of the groundwater impact is defined by MW-18 for the Middleburg Grocery site and MW-17 for the Middleburg Variety site; and  ATC was unable to collect a sample from WSW-13 due to owner absence and inactive spigots. Historically, the analytical results for WSW-13 have been below the laboratory detection limits. Based on the groundwater analytical results, the groundwater impact appears to be generally stable, and largely defined in the downgradient direction. The soil analytical results indicate a potential source area near MW-5R and confirmed impacts exceeding the residential MSCCs from the former UST system at the Middleburg Variety site. Based on the results of the recent soil and groundwater investigation, both sites are candidates for site closure. ATC recommends the following:  Perform a fate and transport model to confirm that the closest (250 feet) active water supply well (WSW-1) would not be impacted by a release from the site. A previous fate and transport model performed in 2019 indicated that WSW-16 located 700 from the Middleburg Grocery site would not be impacted; and  Obtain an access agreement to sample WSW-1 to confirm historical analytical results that show no impacts from petroleum hydrocarbons. . 3.0 SITE DESCRIPTION 3.1 Site Characterization The former Middleburg Grocery site is located on two properties, a one-story, vacant building is located at 7001 US Highway 1 (0 Broad Street) and is currently owned by Mr. Willie Mae Baskerville. The location of the former UST system is an open gravel/grass lot located at the intersection of UST Highway 1 and North Hawkins Avenue and is owned by Ms. Nancy Nasher. The former UST system at the site included two 550- gallon gasoline USTs and three 1,000-gallon gasoline USTs which were removed in April 1991. Additionally, one 280-gallon kerosene UST was removed in June 2004. The site is bounded by residences to the north and west, US Highway 1/NC Highway 158 to the south, and North Hawkins Avenue to the east. Surrounding properties are characterized by residential, agricultural, and commercial use. Fourteen water supply wells are located within 1,000 feet of the site. Water supply well ownership information is included in Table 1. A site topographic map is included as Figure 1 and a site map depicting monitoring well locations and other pertinent site features is included as Figure 2. A Water Supply Well Location Map is included as Figure 3. 3.2 Site Background In December 1990, the NCDEQ identified the Middleburg Grocery Site and the Middleburg Variety (7075 Broad Street) as potential sources of petroleum contamination due to the operation of USTs and Middleburg Grocery July 31, 2023 Page 4 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program aboveground storage tanks (ASTs) at each of the sites. The Middleburg Variety is located approximately 290 feet northeast of the site. Per the NCDEQ UST database, two 550-gallon gasoline USTs and three 1,000-gallon gasoline USTs were removed from the Middleburg Grocery site in April 1991. Additionally, a 280-gallon kerosene UST was removed in June 2004. Laboratory analysis of soil samples collected from the UST basins following UST removal identified petroleum-related contamination originating from four of the five USTs. In April 1991, Westinghouse Environmental and Geotechnical Services, Inc. (Westinghouse) removed two 550-gallon gasoline USTs and three 1,000-gallon gasoline USTs from the former Middleburg Grocery site. Westinghouse collected ten soil samples during UST closure activities which indicated petroleum-impacted soils beneath four of the five USTs. In May 1992, Environmental Aspects, Inc. (EAI) removed one 1,000-gallon kerosene UST, one 1,000-gallon diesel UST, and one 6,000-gallon gasoline UST from the Middleburg Variety site. Additionally, EAI removed approximately 20 cubic yards of soil from the vicinity of the kerosene UST. In August 1992, EAI removed 280 cubic yards of soil from the vicinity of the dispenser island and product lines at the Middleburg Variety. In June 1992, ESE Bioscience, Inc. collected samples from 20 potable water supply wells in the area of the incident. Four of the wells indicated concentrations above laboratory detection limits and/or 2L Standards. In July 1992, Geophex, Ltd. conducted a magnetic and ground penetrating radar (GPR) survey at the site and the former Fogg Property, which is located adjacent to the site, across North Hawkins Avenue. The survey identified two anomalies on the Fogg Property. The anomalies included one UST on the northern portion of the Fogg Property and one septic tank. In May 1994, ATEC Associates, Inc. (ATEC) observed stockpiled soils on the Fogg Property. The soil was stockpiled on black plastic in the center of the property. ATEC also observed one kerosene AST at the Middleburg Variety Store. In August 1994, ATEC collected samples from ten potable water supply wells. Based on the analytical results, six of the wells indicated concentrations above laboratory detection limits and/or 2L Standards. ATEC completed a study to determine the feasibility to connect one of the residences with an impacted water supply well to the municipal water supply, which was summarized in an April 19, 1996, Investigation Results report. In May and June 2001, a soil and groundwater assessment was conducted by Marshall Miller & Associates. Twelve soil borings were advanced to a depth of approximately 20 feet below the ground surface (bgs) in the vicinity of the former USTs. From the twelve borings, six soil samples and three groundwater samples were collected. Laboratory analysis of three of the six soil samples and each of the groundwater samples reported targeted compounds at concentrations above their respective laboratory reporting limits. In July 2003, a receptor survey was completed by Schnabel Engineering South, LLC (Schnabel Engineering). The receptor survey identified twenty-four water supply wells within 1,500 feet of the site. Nine of the twenty- Middleburg Grocery July 31, 2023 Page 5 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program four water supply wells were subsequently sampled. Analytical results from four of the water supply wells identified petroleum-related impact. Also at that time, ten soil borings were advanced on the site and adjacent properties. Soil borings SB-1, SB-3, SB-7, SB-9, and SB-10 were converted into groundwater monitoring wells (MW-1 through MW-5) and subsequently sampled. Laboratory analysis of three of the five groundwater monitoring wells reported targeted compounds at concentrations above their respective laboratory reporting limits. The highest concentration of groundwater impacts was noted in monitoring well MW-1. In June 2004, contaminated soil was excavated from the vicinity of the former tank pit. During excavation activities, an approximate 280-gallon kerosene UST was encountered and subsequently removed. Approximately 393 tons of soil was excavated and disposed. Laboratory analysis of closure soil samples collected from the vicinity of the kerosene UST reported total petroleum hydrocarbons-diesel range organics (TPH-DRO) at concentrations above the NCDEQ UST Section’s Action Level. In August 2004, soil borings were advanced on adjacent properties. Four of the six borings were converted into monitoring wells (MW-6 through MW-9) and were subsequently sampled along with site monitoring wells MW-1 through MW-5. Laboratory analysis of the groundwater samples collected from monitoring wells MW-1, MW-5, and MW-7 reported targeted compounds at concentrations above their respective 2L Standards with the highest concentrations reported in monitoring well MW-1. In May 2006, Agra Environmental, Inc. (Agra) performed a groundwater sampling event including five monitoring wells (MW-3, MW-5, MW-6, MW-8, MW-9) and three water supply wells (WSW-2, WSW-8, and WSW-9). Monitoring wells MW-1, MW-2, MW-4, and MW-7 were dry and could not be sampled. Laboratory analysis of the groundwater samples collected from monitoring wells reported chloroform was detected above the respective 2L Standard in MW-6. No other compounds were detected above laboratory detection limits. Laboratory analysis of water supply well samples did not report targeted compounds at concentrations above their respective laboratory reporting limits. In September 2006, monitoring wells MW-1R, MW-2R, MW-4R, and MW-7R were installed to replace monitoring wells MW-1, MW-2, MW-4, and MW-7 which were dry during the May 2006 sampling event. Upon installation, a groundwater monitoring event was conducted at the site. Laboratory analysis of the groundwater samples collected from monitoring wells MW-1R, MW-4R, MW-5, and MW-7R reported targeted compounds at concentrations above their respective 2L Standards. Laboratory analysis of groundwater samples collected from water supply wells sampled during this sampling event did not report targeted compounds at concentrations above their respective laboratory reporting limits. In July 2009, Terraquest conducted a groundwater monitoring event of monitoring wells MW-1R, MW-2R, MW-4R through MW-7R, and from water supply wells WSW-1, WSW-2, WSW-4, WSW-5, WSW-6, WSW-8, WSW-10, and WSW-11. Laboratory analysis of the groundwater samples collected from monitoring wells MW-1R, MW-4R, MW-5, and MW-7R reported targeted compounds at concentrations above their respective 2L Standards with benzene reported above its GCL in MW-1R. Laboratory analysis of the water supply well samples did not report compounds above their respective laboratory reporting limits. Middleburg Grocery July 31, 2023 Page 6 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program In December 2009, Terraquest conducted a mobile multi-phase extraction event (MMPE) on the site using monitoring well MW-1R as an extraction point. In March 2010, monitoring wells MW-10 through MW-13 were installed and the monitoring well network was sampled. Light non-aqueous phase liquid (LNAPL) was discovered at a thickness of 0.02 inches in monitoring wells MW-1R and MW-4R. Laboratory analysis of the groundwater samples collected from monitoring wells MW-5R, MW-7R, and MW-12 reported targeted compounds at concentrations above their respective 2L Standards. In February 2013, Terraquest conducted a monitoring well sampling event of the monitoring well network. LNAPL was discovered in monitoring wells MW-1R and MW-2R and monitoring wells MW-5 and MW-11 were dry. Laboratory analysis of the groundwater samples collected from monitoring wells MW-4R, MW-7R, MW-14, and DW-1 reported targeted compounds at concentrations above their respective 2L Standards. In October 2014, ECS Carolina, LLP (ECS) collected twelve groundwater samples from monitoring wells MW-1R, MW-2R, MW-4R, MW-5, MW-6, MW-7R, MW-11 through MW-15, and DW-1 and one groundwater sample from water supply well WSW-13. Laboratory analysis of the groundwater samples collected from monitoring wells MW-1R and MW-12 reported EDB at a concentration above the respective 2L Standard and GCL. The analytical results for WSW-13 were below the laboratory reporting limits. In May 2015, ECS contracted CCI to conduct an 8-hour AFVR event on monitoring wells MW-1R and MW- 12. Prior to the AFVR event, LNAPL was not observed in monitoring wells MW-1R and MW-12. A total of 600 gallons of water was removed from the monitoring wells. Following the AFVR event, ECS collected eleven groundwater samples from site monitoring wells and collected a groundwater sample from water supply well WSW-13. In addition, ECS contracted with Bateman Civil Survey to survey the site monitoring wells. Laboratory analysis reported EDB at a concentration above the respective 2L Standard and GCL in MW-12. The analytical results for WSW-13 were below the laboratory reporting limits. In March 2016, ECS collected groundwater samples from monitoring wells MW-1R, MW-2R, MW-4R, MW-5, MW-6, MW-11 through MW-14, and DW-1, and a groundwater sample from water supply well WSW-13. ECS installed ORC socks in monitoring wells MW-1R, MW-4R, MW-5, MW-11, and MW-12. Laboratory analysis reported EDB at a concentration above the respective 2L Standard and GCL in MW-12. The analytical results for WSW-13 were below the laboratory reporting limits. In June 2017, ECS collected groundwater samples from monitoring wells MW-1R, MW-4R, MW-5, MW-11, MW-12, and DW-1. ECS removed ORC socks from monitoring wells MW-1R, MW-4R, MW-5, MW-11, and MW-12 and installed new ORC socks in monitoring wells MW-1R, MW-4R, MW-5, and MW-12. Laboratory analysis reported EDB at a concentration above the 2L Standard and GCL in MW-1R. In June 2018, ECS collected groundwater samples from monitoring wells MW-1R, MW-2R, MW-4R, MW-5, MW-6, MW-12, MW-13, and DW-1 and from water supply wells WSW-1, WSW-2, and WSW-13. ECS removed ORC socks from monitoring wells MW-1R, MW-4R, MW-5, and MW-12 and installed new ORC socks in monitoring well MW-1R, MW-4R, MW-5, and MW-12. Laboratory analysis reported EDB at a concentration above the 2L Standard and GCL in MW-1R. The analytical results for WSW-1, WSW-2 and WSW-13 were below the laboratory reporting limits. Middleburg Grocery July 31, 2023 Page 7 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program In July 2018, ECS contracted with Quantex to advance six soil borings to characterize the horizontal and vertical extent of possible soil contamination near monitoring wells MW-1R and MW-12. Laboratory analysis reported several targeted compounds at concentrations above their respective Soil-to-Water Maximum Soil Contaminant Concentrations (MSCCs) but below their respective residential MSCCs in soil samples SS-1-15, SS-2-15, SS-3-15, SS-5-10, and SS-5-15. In February 2019, ECS contracted with Zebra Environmental & Industrial Services to conduct an AFVR event at the site using monitoring wells MW-1R and MW-12 as extraction points. Quantex, on behalf of ECS, installed one Type II groundwater monitoring well, MW-11R. On February 27 and 28, 2019, ECS collected groundwater samples from monitoring wells MW-1R, MW-2R, MW-4R, MW-6, MW-11R, MW-12, MW-13, and DW-1. Additionally, ECS collected groundwater samples from water supply wells WSW-1, WSW-2, and WSW-13. Laboratory analysis reported benzene and EDB at concentrations above their respective 2L Standards and GCLs in the groundwater samples collected from monitoring well MW-1R. Laboratory analysis reported several targeted compounds at concentrations above their respective 2L Standards but below their respective GCLs in the groundwater samples collected from monitoring wells MW-1R, MW-4R, MW-11R, and MW-12. The analytical results for WSW-2 and WSW-13 were below the laboratory reporting limits. Chloroform was detected in WSW-1 at a concentration of 0.30J µg/L below the 2L Standards (the concentration of chloroform was estimated above the method detection limit but below the reporting limit). In July 2019, ECS collected groundwater samples from monitoring wells MW-1R, MW-2R, MW-4R, MW-6, MW-12, MW-13, and DW-1 and from water supply wells WSW-1, WSW-2, and WSW-13. Laboratory analysis reported EDB at a concentration above the 2L Standard and GCL in MW-1R. Laboratory analysis reported several targeted compounds at concentrations above their respective 2L Standards but below their respective GCLs in the groundwater samples collected from monitoring wells MW-1R, MW-4R, MW-11R, and MW-12. The analytical results for WSW-2 and WSW-13 were below the laboratory reporting limits. Chloroform was detected in WSW-1 at a concentration of 1.1 µg/L below the 2L Standards. On September 6, 2019, ECS submitted a report documenting slug tests and fate and transport modeling for the site. Based on the data collected during the slug test and computer modeling, water supply well WSW-16 (located approximately 700 feet down-gradient and southeast of the site) is not expected to be impacted by the release from Middleburg Grocery. In February 2020, ECS collected groundwater samples from monitoring wells MW-1R, MW-2R, MW-4R, MW- 6, MW-12, MW-13, and DW-1. Monitoring wells MW-5 and MW-11R were both measured dry and therefore, groundwater samples could not be collected. Additionally, ECS collected groundwater samples from water supply wells WSW-1, WSW-2, and WSW-13. Laboratory analysis reported several targeted compounds at concentrations above their respective 2L Standards but below their respective GCLs in the groundwater samples collected from monitoring wells MW-1R, MW-4R, and MW-12. The analytical results for WSW-2 and WSW-13 were below the laboratory reporting limits. Chloroform was detected in WSW-1 at a concentration of 0.38J µg/L below the 2L Standards. Based on the results and conclusions of the assessment, ECS recommended conducting two additional groundwater monitoring events for a total of three consecutive groundwater monitoring events to determine if concentrations remain below the GCLs along with continual Middleburg Grocery July 31, 2023 Page 8 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program redeployment of new ORC socks in monitoring wells MW-1R and MW-12. If concentrations remained below the GCLs after three consecutive groundwater monitoring events, ECS recommended the NCDEQ consider issuing a letter of No Further Action (NFA) conditional to a Notice of Residual Petroleum (NORP) for soil and groundwater contamination. Additionally, ECS recommended abandoning the monitoring wells associated with the site following the issue of an NFA. In May 2021, ATC Associates of North Carolina, P.C. (ATC) collected groundwater samples from monitoring wells MW-1R, MW-2R, MW-4R, MW-6, MW-11R, MW-12, MW-13, MW-14, and DW-1. Additionally, ATC collected groundwater samples from water supply well WSW-13. Results from the groundwater monitoring event indicated petroleum constituents above the 2L Standards in monitoring wells MW-1R, MW-4R, MW- 11R, and MW-12. No compounds exceeded GCLs. Water supply well WSW-13 did not contain any compounds above the laboratory detection limits. Based on the groundwater analytical results, the groundwater impact appears to be stable and mostly defined. On November 23, 2021, ATC collected groundwater samples from monitoring wells MW-1R, MW-2R, MW- 4R, MW-5, MW-6, MW-11R, MW-12, MW-13, and DW-1 and water supply well and WSW-13. Based on the groundwater analytical results, the groundwater impact appears to be generally stable and mostly defined; however, GCL exceedances were observed in monitoring well MW-1R that were not observed during the prior two sampling events. Water supply well WSW-13 did not contain any compounds above the laboratory detection limits. ATC recommended performing an AFVR event to reduce the GCL exceedances in MW-1R and continued semi-annual sampling to monitor groundwater concentrations for GCL exceedances. ATC also recommended installing up to two monitoring wells between the former Middleburg Grocery and east-adjacent Variety Store in order to delineate the plume since monitoring well MW-5 could not be located during the last two sampling events. On April 14, 2022, ATC supervised Eastern Environmental Management, LLC (Eastern) during an 8-hour AFVR event. Monitoring well MW-1R was used as the extraction point for the event. Prior to the event, MW-1R was gauged, and light non-aqueous phase liquid (LNAPL) was not detected. On August 8, 2022, ATC personnel mobilized to the site to supervise the installation of two Type II monitoring wells (MW-5R and MW-16). The Type II monitoring wells were installed to replace MW-5 with MW-5R and an additional well (MW-16) to horizontally delineate the groundwater plume to the east. On August 12, 2022, ATC collected samples from MW-1R, MW-2R, MW-4R, MW-6, MW-5R, MW-12, MW-13, MW-16 and DW-1. LNAPL was not detected in any of the monitoring wells. Results indicate petroleum hydrocarbon compounds at concentrations exceeding 2L Standards in monitoring wells MW-1R, MW-4R, MW-5R, MW-12, and MW-16. Benzene exceeded the GCLs in monitoring well MW-1R. On August 12, 2022, ATC also collected a groundwater sample from WSW-13. The sample was analyzed for VOCs by EPA Standard Method 6200B. Water supply well WSW-13 did not contain any compounds above the laboratory detection limits. ATC recommended additional soil and groundwater assessment near MW-16 and the evaluation of alternative remedial technology to address the GCL impacts in MW-1R. In July 2023, the Middleburg Variety property (7075 Broad Street) was assigned a separate incident number (#49089) to facility deed restrictions for site closure. Middleburg Grocery July 31, 2023 Page 9 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program 4.0 FIELD ACTIVITIES 4.1 Soil Borings and Monitoring Well Installation From May 25 through May 26, 2023, ATC mobilized to advance six soil borings (SB-1 through SB-6) and install two Type II permanent groundwater monitoring wells (MW-17 and MW-18). Soil borings were advanced to confirm the extent of soil impacts near MW-16 (from the former UST system at the Middelburg Variety site), and potential source areas near MW-5R. Soil borings were advanced to approximately 20 feet below ground surface (bgs). Well MW-17 was installed at 7109 Broad Street to confirm the downgradient impacted plume extent. Well MW-18 was installed at 7075 Broad Street between MW-16 and MW-4R to confirm source area impacts. Field notes are included as Appendix B, soil boring logs are included as Appendix C. A copy of the access agreement and a copy of the Monitoring Well Construction Permit are included as Appendix D. Well locations and soil boring locations are depicted on Figure 2. Ameriprobe, LLC, a North Carolina-licensed drilling contractor, advanced the Type II monitoring wells using a Geoprobe 7822DT. Both MW-17 and MW-18 were installed to a depth of approximately 20 feet bgs. Both wells are constructed of 2-inch diameter polyvinyl chloride (PVC) with 10 feet of 0.010-inch slotted screen section. Sand surrounded the screen from 8-20 feet bgs for both wells. A bentonite seal was placed from 4-8 feet bgs for each well. The Type II wells were completed with a grout seal from 0-4 feet bgs. The wells were completed within a 2-foot-by-2-foot concrete pad and 8-inch diameter well vault and capped with a lockable water-tight cap. Well construction data is included on Table 2. Once the installation of the monitoring wells was complete, the monitoring wells were developed by removing groundwater until it appeared clear of suspended sediment prior to departing the site. 4.2 Groundwater Levels On June 1, 2023, groundwater level measurements were collected from monitoring wells MW-1R, MW-2R, MW-4R, MW-5R, MW-11R, MW-12, MW-13, MW-16, MW-17, and MW-18. ATC was unable to sample well MW-6 due to the presence of a large ant nest. Monitoring well construction details and current groundwater elevation data are summarized in Table 2. Depth to groundwater measurements ranged from 12.81 feet bgs in MW-17 to 20.88 feet bgs in MW-13. A groundwater elevation contour map generated using the June 2023 groundwater elevation data is included as Figure 4. This figure indicates that the direction of groundwater flows towards the northeast. Field notes from the sampling event are included in Appendix B, and a photo log including the locations of the monitoring wells is included as Appendix E. 5.0 ANALYTICAL RESULTS 5.1 Soil Analytical Results Soil was collected from each soil boring and screened in 1-foot increments using a photoionization Detector (PID) in order to select discrete intervals for analysis. Samples were collected in laboratory-approved containers, packed in ice and delivered under chain-of-custody protocol to Pace Analytical National (Pace) in Middleburg Grocery July 31, 2023 Page 10 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program Mount Juliet, Tennessee for analyses. Soil samples were analyzed for volatile organic compounds (VOCs) by Environmental Protection Agency (EPA) Standard Method 8260B, semi-volatile organic compounds (SVOCs) by EPA Standard Methods 8270B, and Massachusetts Department of Environmental Protection (MADEP) volatile petroleum hydrocarbons (VPH) and extractable petroleum hydrocarbons (EPH). Results indicate petroleum hydrocarbon compounds at concentrations exceeding soil-to-groundwater maximum soil contamination concentrations (MSCCs) in SB-2, SB-5, and SB-6. Benzene was the only concentration that exceeded the soil-to-groundwater MSCCs in SB-2. Benzene, toluene, ethylbenzene, xylenes, naphthalene, sec-butylbenzene, isopropylbenzene, n-propylbenzene, 1,2,4-trimethylbenzne, and 1,3,5-trimethylbenzene exceeded the soil-to-groundwater MSCCs in SB-5. Ethylbenzene, xylenes, naphthalene, isopropylbenzene, n-propylbenzene, 1,2,4-trimethylbenzene and 1,3,5-trimethylbenzene exceeded the soil-to-groundwater MSCCs in SB-6. C5 to C8 aliphatics and C9 to C18 aliphatics exceeded the residential MSCCs in SB-5, and the soil-to-groundwater MSCCs in SB-6. C9 to C22 aliphatics exceeded the residential MSCCs in both SB-5 and SB-6. None of the other samples exceeded the residential MSCCs. Soil analytical results are included in Table 3, a soil analytical map is included as Figure 5. As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of the laboratory report was conducted. During the review, it was concluded that samples were received by the laboratory in acceptable condition and properly preserved, and the chain of custody was properly completed by all parties. The samples were analyzed within correct holding times and reported within the lab report. The laboratory QC report shows that an internal blank was analyzed for each method that was used for the original samples. The laboratory fortified blank (LFB) and laboratory control sample (LCS) data results were also provided for each analytical method. It should be noted that some compounds including ethylbenzene, methylene chloride, C19 to C36 aliphatics, and C9 to C22 aliphatics were detected in associated blanks. Refer to the laboratory reports in Appendix F for details regarding QA results for the laboratory samples and any noted exceptions. Overall, ATC concludes that the laboratory results are usable, and any exceptions do not significantly impact the conclusions presented in this report. 5.2 Groundwater Quality On June 1, 223, groundwater samples were collected from monitoring wells MW-1R, MW-2R, MW-4R, MW- 5R, MW-11R, MW-12, MW-13, MW-16, MW-17, and MW-18. A field blank sample was also collected during this event. During sampling activities, a three-volume well purge was implemented prior to groundwater sample collection to ensure a representative groundwater sample. Samples were collected in laboratory- approved containers, packed in ice and delivered under chain-of-custody protocol to Pace Analytical National (Pace) in Mount Juliet, Tennessee for analyses. Groundwater samples were analyzed for volatile organic compounds (VOCs) by Environmental Protection Agency (EPA) Standard Method 6200B. Results indicate petroleum hydrocarbon compounds at concentrations exceeding 2L Standards in monitoring wells MW-1R, MW-4R, MW-5R, MW-11R, MW-12, and MW-16. Compounds exceeding 2L Standards include benzene, toluene, ethylbenzene, total xylenes, methyl tert-butyl ether (MTBE), diisopropylether, naphthalene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, n-propylbenzene, and 1,2-dichloroethane. No compounds were detected above GCLs. Current groundwater analytical data is summarized in Table 4 and Middleburg Grocery July 31, 2023 Page 11 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program historical groundwater analytical data is summarized in Table 5. Natural attenuation parameters were collected during the sampling event and are summarized in Table 6. A dissolved benzene isoconcentration contour map is included as Figure 6. A figure depicting additional contaminants of concern in groundwater is included as Figure 7. The laboratory analytical report and chain-of-custody forms are included in Appendix F. As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of the laboratory report was conducted. During the review, it was concluded that samples were received by the laboratory in acceptable condition and properly preserved, and the chain of custody was properly completed by all parties. The samples were analyzed within correct holding times and reported within the lab report. The laboratory QC report shows that an internal blank was analyzed for each method that was used for the original samples. The laboratory fortified blank (LFB) and laboratory control sample (LCS) data results were also provided for each analytical method. Refer to the laboratory reports in Appendix F for details regarding QA results for the laboratory samples and any noted exceptions. Overall, ATC concludes that the laboratory results are usable, and any exceptions do not significantly impact the conclusions presented in this report. 5.3 Water Supply Wells Based on the updated receptor survey performed in December 2016 by ECS, there are fourteen water supply wells that are located within 1,000 feet of the site. Municipal water is available for the site and the surrounding area. Water supply well locations are shown on Figure 3. Water supply well ownership information is included in Table 1. On June 1, 2023, ATC attempted to collect a sample from WSW-13. At the time of the site visit, ATC personnel attempted to collect water from spigots on the front and side of the house. No water came out of either spigot. ATC attempted to speak with the homeowner, but no one was available. No results are available for WSW-13, and historical water supply well analytical results are included in Table 7. ATC personnel attempted to gain access to WSW-1 and WSW-2, however no response has been received from the property owners. 6.0 CONCLUSIONS AND RECOMMENDATIONS On behalf of the Trust Fund Branch of the UST Section, ATC has completed a Groundwater Monitoring Report documenting the May 2023 monitoring well installation activities and the June 2023 groundwater monitoring event at Middleburg Grocery located at the northwest corner of US Highway 1/NC Highway 158 and North Hawkins Avenue in Middleburg, Vance County, North Carolina. The following site conditions are noted based on the recent and historical assessment activities:  In December 1990, the NCDEQ identified the Middleburg Grocery Site and the Middleburg Variety (7075 Broad Street) as potential sources of petroleum contamination due to the operation of USTs at each of the sites. The Middleburg Variety property was assigned a separate incident number (#49089) to facilitate deed restrictions during site closure; Middleburg Grocery July 31, 2023 Page 12 of 11 ATC Project No. STL0617401 NCDEQ State Lead Program  The site is classified as “High” risk due to the presence of fourteen water supply wells located within 1,000 feet of the site. However, none of the water supply wells appear to be at risk due to their location (upgradient or cross gradient) and their distance to the site;  On May 25 and May 26, 2023, ATC personnel mobilized to the site to supervise the advance of six soil borings (SB-1 through SB-6), and installation of two Type II monitoring wells (MW-17 and MW-18) to delineate the extent of impacted soil and groundwater;  On June 1, 2023, ATC personnel mobilized to collect groundwater samples from MW-1R, MW-2R, MW-4R, MW-5R, MW-11R, MW-12, MW-13, MW-16, MW-17, and MW-18;  The soil analytical results indicate petroleum impacts exceeding the soil-to-groundwater MSCCs in SB-2, SB-5, and SB-6. Compounds exceeded both the residential MSCCs in SB-5 and SB-6. The analytical soil results indicate potential source area impact (SB-2) in the area near MW-5R and impacts (SB-5 and SB-6) from the former UST system at the Middleburg Variety site;  The groundwater analytical results indicate petroleum hydrocarbon compounds at concentrations exceeding 2L Standards in monitoring wells MW-1R, MW-4R, MW-5R, MW-11R, MW-12, and MW- 16;  The downgradient extent of the groundwater impact is defined by MW-18 for the Middleburg Grocery site and MW-17 for the Middleburg Variety site; and  ATC was unable to collect a sample from WSW-13 due to owner absence and inactive spigots. Historically, the analytical results for WSW-13 have been below the laboratory detection limits. Based on the groundwater analytical results, the groundwater impact appears to be generally stable, and largely defined in the downgradient direction. The soil analytical results indicate a potential source area near MW-5R and confirmed impacts exceeding the residential MSCCs from the former UST system at the Middleburg Variety site. Based on the results of the recent soil and groundwater investigation, both sites are candidates for site closure. ATC recommends the following:  Perform a fate and transport model to confirm that the closest (250 feet) active water supply well (WSW-1) would not be impacted by a release from the site. A previous fate and transport model performed in 2019 indicated that WSW-16 located 700 from the Middleburg Grocery site would not be impacted; and  Obtain an access agreement to sample WSW-1 to confirm historical analytical results that show no impacts from petroleum hydrocarbons. Middleburg Grocery ATC Project No. STL0617401 NCDEQ State Lead Program TABLES TABLE 1 WATER SUPPLY WELL INFORMATION MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Parcel ID Property Owner(s)Property Address Owner Address Estimated Distance and Direction from Source Up or Down Gradient Connected to a Municipal Water Supply Usage 33 North Hawkins Avenue 33 North Hawkins Avenue Middleburg, NC 27556 Middleburg, NC 27556 PO Box 57 Middleburg, NC 27556 54 North Hawkins Drive Middleburg, NC 27556 (252) 430-7716 30 South Hawkins Drive 351 North Drive #13 Middleburg, NC 27556 North Plainfield, NJ 07060 Corner of South Hawkins & Chestnut Street Middleburg, NC 27556 0 Plummer Land PO Box 41 Middleburg, NC 27556 Middleburg, NC 27556 321 Chestnut Street PO Box 341 Middleburg, NC 27556 Middleburg, NC 27556 88 South Carroll Street PO Box 85 Middleburg, NC 27556 Middleburg, NC 27556 123 Chestnut Street PO Box 262 Middleburg, NC 27556 Middleburg, NC 27556 98 Chestnut Street PO Box 219 Middleburg, NC 27556 Middleburg, NC 27556 PO Box 122 Middleburg, NC 27556 (919) 702-8102 156 Walnut Street 156 Walnut Street Middleburg, NC 27556 Middleburg, NC 27556 150 South Hawkins Avenue 150 South Hawkins Avenue Middleburg, NC 27556 Middleburg, NC 27556 120 South Hawkins Avneue PO Box 296 Middleburg, NC 27556 Middleburg, NC 27556 Note- information based on receptor survey conducted in December 2016 by ECS Southeast, LLP * = Vacant land ** = Two water supply wells are located on the property Active potable supplyWSW-2 0604 03001 Middleburg Baptist Church c/o Marsha Lougee 490 feet Northwest Upgradient No80 North Plummer Avenue Middleburg, NC 27556 Crossgradient Upgradient Crossgradient Crossgradient Inactive Active potable supply Active potable supply Crossgradient No WSW-7*0604 09001 Kristy B. Stainback 245 feet Southeast No InactivePO Box 219 Middleburg, NC 27556 WSW-8 Active potable supply No WSW-3 0604 02001 Annie Fudge 330 feet Northwest Yes Inactive 0604 07002 Raymond Glasco, Jr. c/o Willow Ann Glasco 0602 05001 Ronald and Nancy Stainback 800 feet Southeast No WSW-11 No0604 15002 WSW-9 WSW-10** Crossgradient Crossgradient Inactive Crossgradient Arthur Plummer Heirs c/o Gary & Eva Plummer Yes Michael D. Jones 840 feet Southeast Active potable supply 35 North Plummer Avenue Middleburg, NC 27556 850 feet Southwest No No Active potable supply WSW-15 0604 08002 Destry L. Herring No Active potable supply Active potable supply William A. and Dorothy B. Terry No Kenneth Paul Moody No 720 feet Northeast 900 feet Southeast 700 feet Southeast Middleburg Baptist Church Active potable supply Arthur Plummer Heirs c/o Gary Plummer WSW-12 0604 15002 Kristy B. Stainback WSW-14 0603 07002 0605 02002 WSW-1 0604 04004 Kim R. Lofton 250 feet Northwest No WSW-6* Crossgradient Crossgradient Crossgradient 54 North Hawkins Drive Middleburg, NC 27556 Active potable supply 270 feet South WSW-16 0604 08001 800 feet Southwest WSW-13 0604 05003 915 feet Southeast 440 feet West 0605 06001 Page 1 of 1 Upgradient Upgradient TABLE 2 WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Date Installed Well Casing Depth (ft) Screened Interval (ft) Depth of Well (ft) TOC Elev. (ft) Date Measured Depth to LNAPL (ft) Depth to Water (ft) LNAPL Thickness (ft) Groundwater Elevation (ft) 07/16/03 NA 16.77 NA 77.82 08/05/04 NA 20.09 NA 74.50 12/01/04 19.74 19.75 0.01 74.85 05/02/06 NA 21.65 NA 72.94 09/19/06 NA 21.90 NA 452.91 07/28/09 NA 21.67 NA 453.14 03/31/10 18.90 18.92 0.02 80.78 10/26/11 23.70 23.75 0.05 75.97 02/19/13 22.55 22.59 0.04 77.12 03/04/13 (Pre-MMPE)22.22 22.29 0.07 77.45 03/04/13 (Post-MMPE)NA 24.50 NA 75.18 10/17/14 NA 18.59 NA 81.09 05/14/15 NA 17.31 NA 456.70 03/10/16 NA 17.02 NA 456.99 06/14/17 NA 20.41 NA 453.60 02/27/19 NA 17.38 NA 456.63 07/16/19 NA 18.06 NA 455.95 02/18/20 NA 19.42 NA 454.59 05/21/21 NA 16.50 NA 457.51 11/23/21 NA 20.10 NA 453.91 4/14/22 (Pre-AFVR)NA 18.85 NA 455.16 4/14/22 (Post-AFVR)NA 28.30 NA 445.71 08/12/22 NA 20.71 NA 453.30 06/01/23 NA 19.39 NA 454.62 07/16/03 NA 16.19 NA 77.49 08/05/04 NA 19.81 NA 73.87 12/01/04 NA 19.51 NA 74.17 05/02/06 NA 21.40 NA 72.28 09/19/06 NA 21.65 NA 453.39 07/28/09 NA 21.44 NA 453.60 03/31/10 NA 18.42 NA 81.53 10/26/11 NA 23.36 NA 76.59 02/19/13 21.98 22.14 0.16 77.95 10/17/14 NA 18.19 NA 81.76 05/14/15 NA 16.02 NA 458.21 03/10/16 NA 16.07 NA 458.16 06/14/17 NM NM NM NM 02/27/19 NA 16.75 NA 457.48 07/16/19 NA 17.70 NA 456.53 02/18/20 NA 18.87 NA 455.36 05/21/21 NA 16.00 NA 458.23 11/23/21 NA 19.84 NA 454.39 08/12/22 NA 20.43 NA 453.80 06/01/23 NA 19.02 NA 455.21 07/16/03 NA 15.52 NA 79.24 08/05/04 NA 19.10 NA 75.66 12/01/04 NA 18.80 NA 75.96 05/02/06 NA 20.67 NA 74.09 09/19/06 NA 21.00 NA 454.18 07/28/09 NM NM NM NM 03/31/10 NM NM NM NM 10/26/11 NM NM NM NM 02/19/13 NM NM NM NM 10/17/14 NM NM NM NM Notes: 1. NM = Not Measured. 2. NS = Not Surveyed. 3. TOC = Top of Casing. 4. NA = Not Applicable. 5. LNAPL = Light Non-Aqueous Phase Liquid. 6. Corrected Groundwater Elevation for wells with LNAPL = (Groundwater Elevation + (LNAPL Thickness *0.8581)). 7. ft = feet. 94.59 MW-2 07/15/03 0-12 12-22 22 93.68 MW-1 07/15/03 MW-1R 0-12 12-22 22 12-22 22 475.18 MW-3 07/15/03 0-12 Abandoned - Dry Well Abandoned - Dry Well Destroyed 475.04 94.76 08/29/06 0-15 15-30 30 474.01 99.68 474.81 MW-2R 08/29/06 0-15 15-30 30 474.23 99.95 Page 1 of 4 TABLE 2 WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Date Installed Well Casing Depth (ft) Screened Interval (ft) Depth of Well (ft) TOC Elev. (ft) Date Measured Depth to LNAPL (ft) Depth to Water (ft) LNAPL Thickness (ft) Groundwater Elevation (ft) 07/16/03 NA 17.04 NA 75.51 08/05/04 NA 20.12 NA 72.43 12/01/04 NA 19.95 NA 72.60 05/02/06 NA 21.70 NA 70.85 09/19/06 NA 22.00 NA 451.14 07/28/09 NA 22.00 NA 451.14 03/31/10 19.36 19.38 0.02 78.67 10/26/11 23.98 24.00 0.02 74.05 02/19/13 NA 22.75 NA 75.28 10/17/14 NA 19.27 NA 78.76 05/14/15 NA 18.02 NA 454.30 03/10/16 NA 17.68 NA 454.64 06/14/17 NA 20.06 NA 452.26 02/27/19 NA 18.00 NA 454.32 07/16/19 NA 18.59 NA 453.73 02/18/20 NA 19.87 NA 452.45 05/21/21 NA 17.11 NA 455.21 11/23/21 NA 20.46 NA 451.86 08/12/22 NA 21.08 NA 451.24 06/01/23 NA 19.89 NA 452.43 07/16/03 NA 15.86 NA 76.87 08/05/04 NA 19.19 NA 73.54 12/01/04 NA 18.98 NA 73.75 05/02/06 NA 20.80 NA 71.93 09/19/06 NA 21.25 NA 451.72 07/28/09 NA 20.86 NA 452.11 03/31/10 NA 18.00 NA 80.12 10/26/11 NA 22.84 NA 75.28 02/19/13 NM NM NM NM 10/17/14 NA 17.70 NA 80.42 05/14/15 NA 16.42 NA 456.04 03/10/16 NA 16.29 NA 456.17 06/14/17 NA 19.41 NA 453.05 02/27/19 07/16/19 02/18/20 05/21/21 11/23/21 08/12/22 NA 20.57 NA 452.21 06/01/23 NA 19.28 NA 453.50 08/05/04 NA 14.38 NA 74.02 12/01/04 NA 14.13 NA 74.27 05/02/06 NA 16.15 NA 72.25 09/19/06 NA 16.65 NA 452.17 07/28/09 NA 16.38 NA 452.44 03/31/10 NA 13.19 NA 80.53 10/26/11 NA 18.18 NA 75.54 02/19/13 NA 17.00 NA 76.72 10/17/14 NA 12.81 NA 80.91 05/14/15 NA 9.02 NA 459.13 03/10/16 NA 11.32 NA 456.83 06/14/17 NM NM NM NM 02/27/19 NA 11.45 NA 456.70 07/16/19 NA 12.54 NA 455.61 02/18/20 NA 13.52 NA 454.63 05/21/21 NA 10.66 NA 457.49 11/23/21 NA 14.52 NA 453.63 08/12/22 NA 15.18 NA 452.97 06/01/23 Notes: 1. NM = Not Measured. 2. NS = Not Surveyed. 3. TOC = Top of Casing. 4. NA = Not Applicable. 5. LNAPL = Light Non-Aqueous Phase Liquid. 6. Corrected Groundwater Elevation for wells with LNAPL = (Groundwater Elevation + (LNAPL Thickness *0.8581)). 7. ft = feet. Not Measured MW-5 07/15/03 0-12 468.82 MW-6 22 472.97 98.12 12-22 MW-4 07/15/03 0-12 12-22 22 92.55 472.46 Could Not Locate Dry Abandoned - Dry Well 92.73 93.72 Dry 88.40 Dry Could Not Locate 468.15 472.78 MW-4R 08/29/06 0-14 14-29 29 472.32 473.14 98.03 3015-300-15MW-5R 08/08/22 08/05/04 0-13 13-23 23 Page 2 of 4 TABLE 2 WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Date Installed Well Casing Depth (ft) Screened Interval (ft) Depth of Well (ft) TOC Elev. (ft) Date Measured Depth to LNAPL (ft) Depth to Water (ft) LNAPL Thickness (ft) Groundwater Elevation (ft) 08/05/04 NA 20.08 NA 72.50 12/01/04 NA 19.72 NA 72.86 05/02/06 NA 20.84 NA 71.74 09/19/06 NA 21.65 NA 451.32 07/28/09 NA 21.82 NA 451.15 03/31/10 NA 19.00 NA 78.83 10/26/11 NA 23.51 NA 74.32 02/19/13 NA 22.00 NA 75.83 10/17/14 NA 23.75 NA 74.08 05/14/15 03/10/16 06/14/17 02/27/19 07/16/19 02/18/20 05/21/21 08/05/04 NA 20.31 NA 71.59 12/01/04 NA 19.99 NA 71.91 05/02/06 NA 21.53 NA 70.37 09/19/06 NA 21.75 NA 450.57 07/28/09 NM NM NM NM 03/31/10 NM NM NM NM 10/26/11 NM NM NM NM 02/19/13 NM NM NM NM 08/05/04 NA 15.59 NA 71.13 12/01/04 NA 15.11 NA 71.61 05/02/06 NA 17.20 NA 69.52 09/16/06 NA 17.00 NA 450.14 07/28/09 NA NM NA NM 03/31/10 NA NM NA NM 10/26/11 NA NM NA NM 02/19/13 NA NM NA NM 03/31/10 NA 20.82 NA 77.87 10/26/11 NA 25.12 NA 73.57 02/19/13 NA 23.75 NA 74.94 10/17/14 05/14/15 06/14/17 02/27/19 07/16/19 02/18/20 05/21/21 03/31/10 NA Dry NA NM 10/26/11 NA 20.09 NA 78.96 02/19/13 NM NM NM NM 10/17/14 NA 19.18 NA 79.87 05/14/15 NA 17.91 NA 455.45 03/10/16 NA 17.74 NA 455.62 06/14/17 NA 20.19 NA 453.17 02/27/19 NA 18.68 NA NS 07/16/19 NA 19.26 NA NS 02/18/20 05/21/21 NA 17.74 NA NS 11/23/21 08/12/22 NA 20.65 NA 453.01 06/01/23 NA 20.53 NA 453.13 Notes: 1. NM = Not Measured. 2. NS = Not Surveyed. 3. TOC = Top of Casing. 4. NA = Not Applicable. 5. LNAPL = Light Non-Aqueous Phase Liquid. 6. Corrected Groundwater Elevation for wells with LNAPL = (Groundwater Elevation + (LNAPL Thickness *0.8581)). 7. ft = feet. 473.36 MW-10 03/30/10 0-10 10-30 30 0-1103/30/10MW-11 23 0-13 23 0-11 11-21 91.90 472.32 21 99.05 13-23 86.72 467.14 98.69 Dry Could Not Locate Could Not Locate- Assumed Destroyed 21 92.58 2111-21 08/05/04 Abandoned - Dry Well Could Not Locate 0-11 11-21MW-7 MW-7R 08/29/06 0-15 15-30 30 472.97 97.83 NS NS 0-13 13-23 Could Not Locate Could Not Locate Destroyed Destroyed Could Not Locate Could Not Locate Dry Could Not Locate Could Not Locate Could Not Locate Could Not Locate Could Not Locate NS Could Not Locate Could Not Locate MW-8 08/05/04 MW-9 08/05/04 MW-11R 02/22/19 473.66 Page 3 of 4 TABLE 2 WELL CONSTRUCTION AND GROUNDWATER ELEVATION DATA MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Date Installed Well Casing Depth (ft) Screened Interval (ft) Depth of Well (ft) TOC Elev. (ft) Date Measured Depth to LNAPL (ft) Depth to Water (ft) LNAPL Thickness (ft) Groundwater Elevation (ft) 03/31/10 NA 18.37 NA 80.64 10/26/11 NA 22.96 NA 76.05 02/19/13 NA 22.10 NA 76.91 10/17/14 NA 18.72 NA 80.29 05/14/15 NA 16.81 NA 456.59 03/10/16 NA 16.58 NA 456.82 06/14/17 NA 19.52 NA 453.88 02/27/19 NA 16.93 NA 456.47 07/16/19 NA 17.50 NA 455.90 02/18/20 NA 18.93 NA 454.47 05/21/21 NA 16.02 NA 457.38 11/23/21 NA 19.54 NA 453.86 08/12/22 NA 20.12 NA 453.28 06/01/23 NA 18.87 NA 454.53 03/31/10 NA 20.27 NA 81.09 10/26/11 NA 25.17 NA 76.19 02/19/13 NA 24.00 NA 77.36 10/17/14 NA 20.02 NA 81.34 05/14/15 NA 18.72 NA 455.30 03/10/16 NA 18.12 NA 455.90 06/14/17 NM NM NM NM 02/27/19 NA 18.75 NA 455.27 07/16/19 NA 19.55 NA 454.47 02/18/20 NA 20.82 NA 453.20 05/21/21 NA 17.88 NA 456.14 11/23/21 NA 21.82 NA 452.20 08/12/22 NA 22.22 NA 451.80 06/01/23 NA 20.88 NA 453.14 10/26/11 NA 21.81 NA 73.44 02/19/13 NA 21.07 NA 74.18 10/17/14 NA 19.21 NA 76.04 05/14/15 NA 15.77 NA 453.68 03/10/16 NA 15.64 NA 453.81 06/14/17 NM NM NM NM 02/27/19 NM NM NM NM 07/16/19 NM NM NM NM 02/18/20 NM NM NM NM 05/21/21 NA 14.70 NA 454.75 10/26/11 NA 17.75 NA 76.00 02/19/13 NA 16.31 NA 77.44 10/17/14 NA 13.08 NA 80.67 05/14/15 NA 12.04 NA 452.71 03/10/16 06/14/17 02/27/19 07/16/19 02/18/20 05/21/21 08/12/22 NA 15.68 NA 450.20 06/01/23 NA 14.72 NA 451.16 MW-17 05/25/23 0-10 10-20 20 463.30 06/01/23 NA 12.81 NA 450.49 MW-18 05/25/23 0-10 10-20 20 467.79 06/01/23 NA 15.79 NA 452.00 10/26/11 NA 47.81 NA 51.88 02/19/13 NA 23.85 NA 75.84 10/17/14 NA 19.60 NA 80.09 05/14/15 NA 18.49 NA 455.84 03/10/16 NA 18.90 NA 455.43 06/14/17 NA 20.45 NA 453.88 02/27/19 NA 19.68 NA 454.65 07/16/19 NA 22.24 NA 452.09 02/18/20 NA 21.98 NA 452.35 05/21/21 NA 18.05 NA 456.28 11/23/21 NA 23.07 NA 451.26 08/12/22 NA 21.90 NA 452.43 06/01/23 Notes: 1. NM = Not Measured. 2. NS = Not Surveyed. 3. TOC = Top of Casing. 4. NA = Not Applicable. 5. LNAPL = Light Non-Aqueous Phase Liquid. 6. Corrected Groundwater Elevation for wells with LNAPL = (Groundwater Elevation + (LNAPL Thickness *0.8581)). 7. ft = feet. Well Not Sampled 99.01 101.36 0-15 0-1010/25/11MW-15 14-29 29 473.40 MW-14 10/25/11 0-14 95.25 Could Not Locate Could Not Locate 93.75 464.75 474.02 15-25 25 Could Not Locate 10-25 25 Could Not Locate 30 Could Not Locate Could Not Locate 469.45 MW-12 03/30/10 DW-1 10/25/11 0-45 45-50 50 MW-13 03/30/10 474.33 99.69 465.88MW-16 08/08/22 0-10 10-25 25 0-10 10-30 Page 4 of 4 TABLE 3 SOIL ANALYTICAL RESULTS MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Sample Depth (feet)Date Sampled BenzeneTolueneEthylbenzeneTotal XylenesMTBENaphthalenesec-ButylbenzeneIsopropylbenzeneMethylene Chloriden-Propylbenzene1,2,4-Trimethylbenzene1,2,3-Trimethylbenzene1,3,5-TrimethylbenzeneAcenaphtheneFluoreneNaphthalenePhenanthrenePyreneC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsSB-1 13-14 05/25/23 <0.00202 <0.0101 <0.00506 <0.0132 <0.00202 <0.0254 <0.0254 <0.00506 0.0144 JB <0.0101 <0.0101 <0.0101 <0.0101 <0.0390 <0.0390 <0.0390 <0.0390 <0.0390 <10.1 3.62 JB 4.01 3.51 JB SB-2 19-20 05/25/23 0.0147 0.0126 0.00911 B 0.0269 B <0.00289 <0.0362 <0.0362 <0.00723 0.0212 JB <0.0145 <0.0145 <0.0145 <0.0145 <0.0423 <0.0423 0.0117 J <0.0423 <0.0423 <14.5 4.06 JB 4.40 JB 3.15 JB SB-3 6-7 05/25/23 0.00252 <0.00327 <0.00630 <0.00222 0.0164 <0.0316 <0.0316 <0.00630 0.0171 JB <0.0126 <0.0126 <0.0126 <0.0126 <0.0422 <0.0422 0.0252 J <0.0422 <0.0422 <12.6 4.86 JB 29.5 9.01 B SB-4 13-14 05/26/23 <0.00254 <0.0127 <0.00635 <0.0166 <0.00254 <0.0318 <0.0318 <0.00635 0.0187 JB <0.0127 <0.0127 <0.0127 <0.0127 <0.0441 <0.0441 0.0171 J <0.0441 <0.0441 <12.7 4.23 JB 6.40 JB 3.79 JB SB-5 13-14 05/26/23 1.64 55.2 42.3 265 <0.0179 32.8 4.36 6.37 <0.448 27.2 157 38.3 50.9 0.0339 J 0.0422 J 10.9 0.0527 0.0101 J 1,350 2,010 5.96 JB 1,227 SB-6 18-19 05/26/23 <0.0177 0.288 10.7 41.0 <0.0177 13.6 2.25 3.12 <0.444 13.5 93.7 18.4 43.8 0.0166 J 0.0227 J 3.05 0.0285 J <0.0422 580 1,012 4.31 JB 810 0.0056 4.3 4.9 4.6 0.091 0.16 3.3 1.7 0.023 1.7 8.5 NE 8.3 8.2 47 0.16 56 270 68 540 #31 18 1,200 1,560 3,129 350 313 626 1,564 93.8 626 782 NE 782 940 620 313 469 469 939 1,500 31,000 469 164 32,000 40,000 81,760 3,100 8,176 16,350 40,880 1,400 16,350 20,440 NE 20,440 24,000 16,400 8,176 12,264 12,264 24,528 40,000 810,000 12,264 Notes: 1. Concentrations reported in milligrams per kilogram (mg/kg). 2. MSCC = Maximum Soil Contaminant Concentration. 3. Bold indicates concentrations above NCDEQ Soil-to-Groundwater MSCC. 4. Bold and italicized indicates concentrations above Residential MSCC. 5. Bold, italicized and shaded indicates concentrations above Industrial MSCC. 6. Final C9-C18 Aliphatics values are equal to the sum of C9-C12 Aliphatics and C9-C18 Aliphatics as reported in the laboratory report. 7. Final C9-C22 Aromatics are equal to the sum of C9-C10 Aromatics and C11-C22 Aromatics as reported in the laboratory analytical report. 8. "J" values were detected higher than the MDL, but below the RDL. 9. "B" indicates the compound was found in the blank. Residential MSCC Industrial/Commerical MSCC Soil-to-Groundwater MSCC MADEP VPH and EPHEPA Method:8260B 8270D Page 1 of 1 TABLE 4 CURRENT GROUNDWATER ANALYTICAL RESULTS MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes (Total)MTBENaphthalenen-Butylbenzenesec-ButylbenzeneChloromethane1,2-DichloroethaneDiisopropyl Ether (IPE)Isopropylbenzenep-Isopropyltoluene2-Butanone (MEK)4-Methyl-2-pentanone (MIBK)n-PropylbenzeneStyrene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneMW-1R 06/01/23 556 2,400 653 3,930 13.0 323 <10.0 6.22J <25.0 <10.0 6.84J 34.6 <10.0 <100 <100 85.3 <10.0 920 248 MW-2R 06/01/23 <1.00 0.320J <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <2.50 <1.00 <1.00 <1.00 <1.00 <10.0 <10.0 <1.00 <1.00 <1.00 <1.00 MW-4R 06/01/23 65.7 1.47 20.0 1.81J 1.93 78.2 3.57 1.29 <2.50 0.933J 1.70 11.1 0.970J <10.0 <10.0 10.5 0.514J <1.00 1.19 MW-5R 06/01/23 32.1 1.71 2.55 1.97J <1.00 50.5 1.11 0.581J 1.19J <1.00 <1.00 3.62 0.476J <10.0 <10.0 1.70 <1.00 <1.00 0.357J MW-11R 06/01/23 333 29.9 242 1,367 40.4 244 <10.0 6.15J <25.0 <10.0 24.5 20.3 5.55J 16.5J 18.1J 64.6 <10.0 809 280 MW-12 06/01/23 1,450 4,970 1,860 9,880 254 674 <100 <100 <250 76.0J 109 63.9J <100 <1,000 <1,000 191 <100 1,750 428 MW-13 06/01/23 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <2.50 <1.00 <1.00 <1.00 <1.00 <10.0 <10.0 <1.00 <1.00 <1.00 <1.00 MW-16 06/01/23 1,550 7,620 1,350 6,810 <200 541J <200 <200 <500 <200 <200 65.9J <200 <2,000 <2,000 180J <200 1,560 454 MW-17 06/01/23 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 0.829J <2.50 <1.00 <1.00 0.322J <1.00 <10.0 <10.0 <1.00 <1.00 <1.00 <1.00 MW-18 06/01/23 0.338J <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <2.50 <1.00 <1.00 <1.00 <1.00 <10.0 <10.0 <1.00 <1.00 <1.00 <1.00 1 600 600 500 20 6 70 70 3 0.4 70 70 25 4,000 100 70 70 400 400 5,000 260,000 80,000 50,000 20,000 6,000 5,900 8,800 3,000 400 70,000 30,500 11,700 4,000,000 100,000 26,100 70,000 28,500 24,100 Notes: 1. "<" or ND = Not detected at or above the laboratory reporting limit. 2. Concentrations reported in micrograms per liter (µg/L) = parts per billion (ppb). 3. Concentrations in bold print equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard) - April, 2022. 4. Concentrations in italics print equal or exceed the corresponding NCDEQ Gross Contamination Levels (GCLs) - January 2021. 5. 2L = 15A NCAC 2L .0202 Groundwater Standards. 6. J = Estimated concentration; constituent was postively identified at a concentration above the laboratory detection limit but below the reporting limit. 7. MTBE = Methyl tert-butyl ether. Analytical Method Standard Method 6200B 2L Standard GCL Page 1 of 1 TABLE 5 HISTORICAL GROUNDWATER ANALYTICAL RESULTS MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes (Total)MTBENaphthalenen-Butylbenzene1,2-Dibromoethane (EDB)1,4-Dichlorobenzene 1,1-Dichloroethane1,2-Dichloroethane1,2-Dichloropropane2-HexanoneDiisopropyl ether (IPE)Isopropylbenzenep-IsopropyltolueneMethyl Isobutyl Ketone (MIBK) n-PropylbenzeneStyreneTetrachloroethyleneTrichloroethylene1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene09/12/06 9,840 12,900 2,680 13,680 1,910 960 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2,520 600 07/28/09 13,000 19,000 1,900 9,800 2,800 410 ND 310 ND ND 320 ND ND 370 64 ND ND 200 57 ND ND ND 1,700 450 03/31/10 02/19/13 10/17/14 3,920 7,220 768 4,930 521 323 ND 163 ND ND 163 ND ND 122 31.7 ND ND 93.4 29.8 ND ND ND 846 204 05/14/15 1,090 3,100 419 2,904 61.5 221 ND 27.7 ND ND 16.3 ND ND 17.7 20.4 ND ND 59.9 12.9 ND ND ND 683 172 03/10/16 170 410 130 1,500 ND 230 13 4.4 ND ND 3.8 ND ND 3.6 16 1.4 ND 35 2.2 ND ND ND 320 92 06/14/17 2,560 3,430 205 3,510 238 179 ND 77.4 ND ND 59.4 ND ND 74.2 ND ND ND ND ND ND ND ND 494 ND 06/26/18 3,200 7,400 750 7,700 310 350 100 110 ND ND ND ND ND 88 39 10J ND ND ND ND ND ND 1,700 530 02/14/19 2,700 6,600 700 6,700 150 350 89 110 ND ND ND ND ND 84 45J ND ND 140 ND ND ND ND 1,500 500 02/28/19 7,300 19,000 1,600 11,400 180 930 34J 190 ND ND ND ND ND 120 54J ND 150 58J ND ND ND 1,900 470 07/16/19 4,200 12,000 980 8,200 350 1,300 ND 150 ND ND ND ND ND 84J 48J ND ND 130 ND ND ND ND 1,300 430 02/18/20 970 2,500 230 2,650 34 360 9.2J 38 ND ND ND ND ND 28 12J ND ND 12 0.42J ND ND ND 460 220 05/21/21 2,210 6,350 803 4,820 111J 659J <500 <500 <500 <500 <500 <500 NA <500 <500 <500 <5,000 142J <500 <500 <500 ND 1,510 409J 11/23/21 5,310 13,800 1,220 7,920 130J <2,500 <500 108J <500 <500 <500 <500 NA <500 <500 <500 <5,000 99.0J <500 <500 <500 ND 1,280 445J 08/12/22 6,420 17,200 1,590 9,940 109J <2,500 <500 <500 <500 <500 <500 <500 NA <500 <500 <500 <5,000 136J <500 <500 <500 <500 1,570 441J 06/01/23 556 2,400 653 3,930 13.0 323 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 NA 6.84J 34.6 <10.0 <100 85.3 <10.0 <10.0 <10.0 <10.0 920 248 09/12/06 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 07/28/09 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 03/31/10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10/26/11 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/19/13 10/17/14 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/14/15 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 03/10/16 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 06/26/18 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/28/19 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 07/16/19 ND ND ND ND ND 0.85 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/18/20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/21/21 <1.00 <1.00 <1.00 <2.00 <1.00 1.85J <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 ND 1.72 0.495J 11/23/21 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 ND <1.00 <1.00 08/12/22 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 06/01/23 <1.00 0.320J <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 09/12/06 179 17 82 213 ND 54 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 195 129 07/28/09 19 4 40 99 ND 37 22 ND ND ND ND ND ND ND 10 3.3 ND 27 ND ND ND ND 120 73 03/31/10 02/19/13 110 92 130 340 5.8 78 81 ND ND ND ND ND ND 2.5 2.5 7.7 ND 51 ND ND ND ND 360 170 10/17/14 24.3 1.6 3.5 5.2 0.80 6.2 2.8 ND ND ND ND ND ND 0.65 1.2 ND ND 1.8 ND ND ND ND 7.0 5.6 05/14/15 13.8 0.71 1.3 6.7 ND 6.7 0.88 ND ND ND ND ND ND ND 1.8 ND ND 0.51 ND ND ND ND 1.6 1.5 03/10/16 15 ND 3.2 3.6 ND 15 0.67 ND ND ND ND ND ND ND 2.4 ND ND 0.71 ND ND ND ND ND ND 06/14/17 66 1.7 76.4 ND ND 85.2 ND ND ND ND 0.58 ND ND 0.67 10.4 ND ND 15.8 ND ND ND ND ND 11.7 06/26/18 25 0.33 14 0.76 1.3 27 2.5 ND ND ND ND ND ND 0.50 4.5 0.54 ND 5.5 ND ND ND ND 1.1 3.7 02/28/19 14 0.17J 4.4 0.62J 0.40J 16 2.5 ND ND ND ND ND ND 4.40 3.1 0.52 ND 3.4 ND ND ND ND 1.1 3.5 07/16/19 6.6 ND 1.0 ND ND 6.8 1.9 ND ND ND ND ND ND ND 1.5 0.28J ND 2.0 ND ND ND ND 0.49J 1.8 02/18/20 63 2.2 16 12 0.92 47 5.0 ND ND ND 0.93J ND ND 1.2 11 1.2 ND 12 0.42J ND ND ND 4.8 5.9 05/21/21 16.0 0.404J 1.59 <2.00 <1.00 29.1Q 1.93 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 3.91 0.404J <10.0 4.37 0.193J <1.00 <1.00 ND <1.00 1.31 11/23/21 46.6 1.43 10.4 1.841J 0.329J 73.9 5.88 <1.00 <1.00 <1.00 <1.00 <1.00 NA 0.734J 15.3 1.99 <10.0 8.35 0.588J <1.00 <1.00 ND 0.385J 1.58 08/12/22 43.2 1.59 15.3 2.574 0.361J 92.3 7.57 <1.00 <1.00 <1.00 <1.00 <1.00 NA 0.576J 14.2 1.74 <10.0 9.25 0.700J <1.00 <1.00 4.86 0.756J 1.51 06/01/23 65.7 1.47 20.0 1.81J 1.93 78.2 3.57 <1.00 <1.00 <1.00 0.933J <1.00 NA 1.70 11.1 0.970J <10.0 10.5 0.514J <1.00 <1.00 <1.00 <1.00 1.19 1 600 600 500 20 6 70 0.02 6 6 0.4 0.6 40 70 70 25 100 70 70 0.7 3 0.6 400 400 5,000 260,000 80,000 50,000 20,000 6,000 5,900 50 405 6,000 400 600 40,000 70,000 30,500 11,700 100,000 26,100 70,000 700 3,000 600 28,500 24,100 Notes: 1. "<" or ND = Not detected at or above the laboratory reporting limit. 2. Concentrations reported in micrograms per liter (µg/L) = parts per billion (ppb). 3. Concentrations in bold print equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard) - April, 2022. 4. Concentrations in italics print equal or exceed the corresponding NCDEQ Gross Contamination Levels (GCLs) - January 2021. 5. 2L = 15A NCAC 2L .0202 Groundwater Standards. 6. J = Estimated concentration; constituent was postively identified at a concentration above the laboratory detection limit but below the reporting limit. 10. Q = Sample was prepared and/or analyzed past holding time as defined in the method. Concentrations should be considered minimum values. Sample Not Collected - LNAPL Sample Not Collected - LNAPL Sample Not Collected - LNAPL 2L Standard MW-4R Analytical Method 7. LNAPL = Light Non-Aqueous Phase Liquid. 8. MTBE = Methyl tert-butyl ether. MW-1R Sample Not Collected - LNAPL GCL 9. NA = Not Analyzed. Standard Method 6200B MW-2R Page 1 of 3 TABLE 5 HISTORICAL GROUNDWATER ANALYTICAL RESULTS MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes (Total)MTBENaphthalenen-Butylbenzene1,2-Dibromoethane (EDB)1,4-Dichlorobenzene 1,1-Dichloroethane1,2-Dichloroethane1,2-Dichloropropane2-HexanoneDiisopropyl ether (IPE)Isopropylbenzenep-IsopropyltolueneMethyl Isobutyl Ketone (MIBK) n-PropylbenzeneStyreneTetrachloroethyleneTrichloroethylene1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneAnalytical Method Standard Method 6200B 09/12/06 5.5 ND ND ND ND 33.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 7 07/28/09 50 27 110 149 1.1 20 2.6 ND ND ND 1.4 ND ND 3.2 9.7 0.88 ND 17 1.9 ND ND ND 2.8 72 03/31/10 88.7 14.6 86.1 45.3 ND 92.5 ND ND ND ND 1.4 ND ND 3.1 12.6 ND ND 21.1 1 ND ND ND ND 49.7 02/19/13 10/17/14 19.2 ND ND ND ND 34.7 ND ND ND ND ND ND ND ND 6.1 ND ND 1.7 ND ND ND ND ND 5.3 05/14/15 2.9 ND ND ND ND 10.4 ND ND ND ND ND ND ND ND 1.5 ND ND ND ND ND ND ND 0.71 ND 03/10/16 ND ND ND ND ND 4.2 0.57 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 06/14/17 ND ND ND ND ND 4.0 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 06/26/18 2.7 ND ND 0.42 ND 13 0.63 ND ND ND ND ND ND ND 1.7 ND ND ND ND ND ND ND ND 0.75 02/28/19 07/16/19 02/18/20 05/21/21 01/23/21 08/12/22 10.7 0.506J 0.854J 4.92 <1.00 22.4 0.587J <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 2.60 0.407J <10.0 0.956J <1.00 <1.00 <1.00 <1.00 1.07 3.59 06/01/23 32.1 1.71 2.55 1.97J <1.00 50.5 1.11 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 3.62 0.476J <10.0 1.70 <1.00 <1.00 <1.00 <1.00 <1.00 0.357J 09/12/06 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 07/28/09 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 03/31/10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10/26/11 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/19/13 ND ND ND ND 2.3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10/17/14 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/14/15 ND ND ND ND 6.9 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 03/10/16 ND ND ND ND 13 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 06/26/18 ND ND ND ND 26 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/28/19 ND ND ND ND 0.20J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 07/16/19 ND ND ND ND 15 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/18/20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/21/21 <1.00 <1.00 <1.00 <2.00 13.2 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 ND <1.00 <1.00 11/23/21 <1.00 <1.00 <1.00 <2.00 25.1 1.33J <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 ND <1.00 <1.00 08/12/22 <1.00 <1.00 <1.00 <2.00 19.3 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 06/01/23 09/12/06 5.5 ND 2.7 13.1 ND 4.8 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 16.7 5.2 07/28/09 3 ND 1.4 6.64 ND 5.6 0.95J ND ND ND ND ND ND ND 1 0.77 ND 0.81 ND ND ND ND 13 4.7 03/31/10 1.3 ND 0.5 6.64 1.9 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 2.8 1.3 10/26/11 35 ND 4.6 2.8 1.9 12.7 ND ND ND ND 6.7 ND ND 7.9 2.5 ND ND 1.8 ND ND ND ND 5.6 13.5 02/19/13 1.2 ND 0.18 ND ND ND ND ND ND 0.31 ND ND ND 0.22 ND ND ND ND ND ND ND ND 0.18 0.39 10/17/14 21.2 ND 3.8 12.6 2.5 14.0 ND ND ND ND ND ND ND 6.1 1.8 ND ND 2.6 ND ND ND ND 11.7 8.2 05/21/21 03/31/10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10/26/11 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/19/13 ND 0.19 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.47 0.14 05/21/21 03/31/10 02/19/13 10/17/14 357 129 148 882 27.6 157 ND 3.2 ND ND 32.1 ND ND 45.9 7.0 ND ND 19.9 ND ND ND ND 258 75.3 05/14/15 1,290 993 404 3,150 116 352 ND 16.8 ND ND 89.7 ND ND 124 20.0 ND ND 55.9 ND ND ND ND 840 221 03/10/16 790 560 160 1,000 230 150 ND 24 ND ND 98 ND ND 110 4.6 ND 110 9.6 ND ND ND ND 110 41 06/14/17 6.7 3.9 8.6 7.5 60.7 22.0 ND 3.0 ND ND 6.3 ND ND 17.2 0.74 ND ND 1.1 ND ND ND ND 2.4 1.5 02/22/19 02/28/19 400 100 400 1,970 39 340 28 ND ND ND ND ND 32J 22 29 5.0J ND 100 4.4J ND ND ND 1,000 260 07/16/19 580 140 480 2,260 17 350 47 ND ND ND 12 ND 93J 18 36 5.6J ND 110 ND ND ND ND 880 270 02/18/20 05/21/21 955 117 583 2,973 17.3 338 147 5.60 <1.00 <1.00 17.7 <1.00 NA 30.6 28.2 28.2 54.9 145 <1.00 <1.00 <1.00 ND 1,130 319 11/23/21 08/12/22 06/01/23 333 29.9 242 1,367 40.4 244 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 NA 24.5 20.3 5.55J 18.1J 64.6 <10.0 <10.0 <10.0 <10.0 809 280 1 600 600 500 20 6 70 0.02 6 6 0.4 0.6 40 70 70 25 100 70 70 0.7 3 0.6 400 400 5,000 260,000 80,000 50,000 20,000 6,000 5,900 50 405 6,000 400 600 40,000 70,000 30,500 11,700 100,000 26,100 70,000 700 3,000 600 28,500 24,100 Notes: 1. "<" or ND = Not detected at or above the laboratory reporting limit. 2. Concentrations reported in micrograms per liter (µg/L) = parts per billion (ppb). 3. Concentrations in bold print equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard) - April, 2022. 4. Concentrations in italics print equal or exceed the corresponding NCDEQ Gross Contamination Levels (GCLs) - January 2021. 5. 2L = 15A NCAC 2L .0202 Groundwater Standards. 6. J = Estimated concentration; constituent was postively identified at a concentration above the laboratory detection limit but below the reporting limit. 10. Q = Sample was prepared and/or analyzed past holding time as defined in the method. Concentrations should be considered minimum values. MW-10 2L Standard Dry Abandoned 7. LNAPL = Light Non-Aqueous Phase Liquid. Dry Dry Could Not Locate Dry Could Not Locate MW-11 Well not sampled Dry MW-5 Dry MW-5R 8. MTBE = Methyl tert-butyl ether. 9. NA = Not Analyzed. Dry GCL Could Not Locate Could Not Locate Dry MW-11R MW-6 Dry MW-7R Page 2 of 3 TABLE 5 HISTORICAL GROUNDWATER ANALYTICAL RESULTS MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Well ID Date Collected BenzeneTolueneEthylbenzeneXylenes (Total)MTBENaphthalenen-Butylbenzene1,2-Dibromoethane (EDB)1,4-Dichlorobenzene 1,1-Dichloroethane1,2-Dichloroethane1,2-Dichloropropane2-HexanoneDiisopropyl ether (IPE)Isopropylbenzenep-IsopropyltolueneMethyl Isobutyl Ketone (MIBK) n-PropylbenzeneStyreneTetrachloroethyleneTrichloroethylene1,1,2-Trichloroethane1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneAnalytical Method Standard Method 6200B 03/31/10 3,780 10,300 2,060 10,960 493 913 122 ND 55.7 63 292 51.7 ND 368 135 ND ND 275 105 62.5 71 ND 1,820 521 10/26/11 2,650 7,810 2,080 11,140 306 595 ND 52.1 ND ND 153 ND ND 187 73.2 ND ND 149 ND ND ND ND 1,680 446 02/19/13 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10/17/14 4,280 6,640 1,320 7,700 684 606 ND 95.8 ND ND 292 ND ND 350 35.5 ND ND 99.9 38.2 ND ND ND 1,160 282 05/14/15 3,390 5,820 1,230 7,360 366 698 ND 87.3 ND ND 135 ND ND 182 38.8 ND ND 105 35 ND ND ND 1,260 332 03/10/16 4,500 8,800 1,800 9,600 400 640 13 85 ND ND 110 ND ND 130 43 ND 18 130 39 ND ND ND 1,500 350 06/14/17 3,100 5,110 687 4,590 366 265 ND ND ND ND 63.6 ND ND 84.1 ND ND ND ND ND ND ND ND 508 ND 06/26/18 3,000 7,700 2,800 16,000 560 1,100 160 ND ND ND ND ND ND 120 110 44J ND 340 ND ND ND ND 3,100 850 02/14/19 2,100 3,500 1,400 7,900 390 570 45 22J ND ND ND ND ND 150 42 ND ND 110 ND ND ND ND 1,200 360 02/28/19 2,300 4,300 1,500 9,200 340 940 25J ND ND ND 110 ND ND 120 45J ND ND 120 38J ND ND ND 1,700 390 07/16/19 2,500 3,700 1,200 7,000 500 570 37J ND ND ND 130 ND ND 190 37J ND ND 94 ND ND ND ND 1,200 340 02/18/20 1,700 3,400 1,200 7,400 290 500 16J ND ND ND 120 ND ND 150 35 ND ND 86 24J ND ND ND 1,000 330 05/21/21 2,410 4,220 1,390 8,410 643 702 <100 <100 <100 <100 <100 <100 NA 229 37.1J 23.3J 56.3J 151 <100 <100 <100 ND 1,640 433 11/23/21 1,370 5,420 1,800 9,660 222 768 <100 <100 <100 <100 <100 <100 NA 69.0J 65.0J 23.3J <1,000 205 35.6J <100 <100 ND 1,910 508 08/12/22 1,320 6,150 2,350 11,270 268 781 30.8J <100 <100 <100 <100 <100 NA 118 78.4J <100 <1,000 238 37.6J <100 <100 <100 2,080 544 06/01/23 1,450 4,970 1,860 9,880 254 674 <100 <100 <100 <100 76.0J <100 NA 109 63.9J <100 <1,000 191 <100 <100 <100 <100 1,750 428 03/31/10 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10/26/11 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/19/13 ND ND ND ND 10 3 ND ND ND 2.7 ND ND ND 2.1 0.37 ND ND ND ND ND ND ND ND ND 10/17/14 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/14/15 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 03/10/16 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 06/26/18 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/28/19 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 07/16/19 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/18/20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/21/21 <1.00 0.364J <1.00 <2.00 <1.00 <5.00 3.20 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 0.250J 0.615J <10.0 1.18 <1.00 <1.00 <1.00 ND <1.00 <1.00 11/23/21 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 0 <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 ND <1.00 <1.00 08/12/22 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 06/01/23 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 10/26/11 40.4 0.96 ND ND 26.2 7.5 ND ND ND ND 5.1 ND ND 8.6 2.1 ND ND ND ND ND ND ND ND ND 02/19/13 8.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10/17/14 ND ND ND 2.2 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 0.53 ND 05/14/15 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 03/10/16 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/21/21 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 0.382J <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 0.156J <1.00 <1.00 <1.00 ND <1.00 <1.00 06/01/23 10/26/11 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/19/13 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 10/17/14 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/14/15 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/21/21 08/12/22 2,380 13,700 2,100 11,470 <500 811J <500 <500 <500 <500 <500 <500 NA <500 82.8J <500 <5,000 213J <500 <500 <500 <500 2,160 645 06/01/23 1,550 7,620 1,350 6,810 <200 541J <200 <200 <200 <200 <200 <200 NA <200 65.9J <200 <2,000 180J <200 <200 <200 <200 1,560 454 MW-17 06/01/23 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 0.322J <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 MW-18 06/01/23 0.338 J <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 10/26/11 168 522 193 754 33.6 128 ND 2.5 ND ND 7 ND ND 8.2 7.9 ND ND 18.7 ND ND ND ND 159 44.2 02/19/13 1 0.11 0.5 1.09 7.2 ND 0.23 ND ND ND ND ND ND 1.7 ND ND ND ND ND ND ND ND 2.6 0.85 10/17/14 ND ND ND ND 0.87 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/14/15 ND ND ND ND 0.69 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 03/10/16 1.8 12 2.6 20 0.69J 4.4 ND ND ND ND ND ND ND ND ND ND ND 0.64 ND ND ND ND 7.0 2.0 06/14/17 0.76 3.6 0.84 4.5 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 1.3 ND 06/26/18 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/28/19 ND ND ND ND 0.26J ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 07/16/19 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 02/18/20 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 05/21/21 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 0.240J <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 ND <1.00 <1.00 11/23/21 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 ND <1.00 <1.00 08/12/22 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NA <1.00 <1.00 <1.00 <10.0 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 06/01/23 1 600 600 500 20 6 70 0.02 6 6 0.4 0.6 40 70 70 25 100 70 70 0.7 3 0.6 400 400 5,000 260,000 80,000 50,000 20,000 6,000 5,900 50 405 6,000 400 600 40,000 70,000 30,500 11,700 100,000 26,100 70,000 700 3,000 600 28,500 24,100 Notes: 1. "<" or ND = Not detected at or above the laboratory reporting limit. 2. Concentrations reported in micrograms per liter (µg/L) = parts per billion (ppb). 3. Concentrations in bold print equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard) - April, 2022. 4. Concentrations in italics print equal or exceed the corresponding NCDEQ Gross Contamination Levels (GCLs) - January 2021. 5. 2L = 15A NCAC 2L .0202 Groundwater Standards. 6. J = Estimated concentration; constituent was postively identified at a concentration above the laboratory detection limit but below the reporting limit. 10. Q = Sample was prepared and/or analyzed past holding time as defined in the method. Concentrations should be considered minimum values. Well not sampled 8. MTBE = Methyl tert-butyl ether. 2L Standard GCL MW-16 Could Not Locate 9. NA = Not Analyzed. 7. LNAPL = Light Non-Aqueous Phase Liquid. MW-14 Well not sampled DW-1 MW-15 MW-13 MW-12 Page 3 of 3 TABLE 6 NATURAL ATTENUATION PARAMETERS MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 Monitoring Well Date Temperature (oC)Specific Conductivity (µs/cm)Dissolved Oxygen (mg/L)pH (SU)ORP (mV)11/23/21 08/12/22 06/01/23 11/23/21 18.8 50.9 8.50 4.95 154.1 08/12/22 20.0 56.0 5.77 4.79 339.8 06/01/23 20.46 75 4.25 4.20 173.2 11/23/21 17.1 60.1 6.11 4.63 195.3 08/12/22 06/01/23 19.53 74 2.83 4.55 168.2 MW-5 11/23/21 08/12/22 19.1 102.1 2.25 5.27 284.5 06/01/23 20.52 102 3.85 4.76 167.3 11/23/21 16.3 112.7 5.88 5.98 174.2 08/12/22 06/01/23 11/23/21 08/12/22 06/01/23 11/23/21 08/12/22 06/01/23 11/23/21 17.8 112.5 5.78 4.45 176.0 08/12/22 19.0 112.3 5.36 4.32 365.0 06/01/23 18.89 119 3.57 4.30 178.3 08/12/22 06/01/23 MW-17 06/01/23 19.41 96 4.22 4.49 177.7 MW-18 06/01/23 20.21 104 5.13 4.78 197.0 11/23/21 18.3 261.0 7.87 7.62 176.2 08/12/22 19.1 277.4 4.71 7.54 295.2 Notes: 1. oC = Degrees Celsius. 2. mg/L = milligrams per liter. 3. µs/cm = micro Siemens per centimeter. 4. SU = Standard Units. 5. ORP = Oxidation Reduction Potential. 6. mV = Millivolts. Not Measured - Petroleum Odor Not Measured - Petroleum Odor MW-16 Not Enough Water For Readings Not Measured - Petroleum Odor Not Measured - Petroleum Odor MW-2R MW-1R DW-1 MW-13 MW-12 MW-11R MW-6 MW-4R MW-5R Well Not Sampled Could Not Locate Not Measured - Petroleum Odor Dry Not Measured - Petroleum Odor and Sheen Not Measured - Petroleum Odor Not Measured - Petroleum Odor Not Measured - Petroleum Odor Not Enough Water For Readings Dry Page 1 of 1 TABLE 7 CURRENT AND HISTORICAL WATER SUPPLY WELL ANALYTICAL RESULTS MIDDLEBURG GROCERY NW CORNER OF US HWY 1/NC HWY 158 N. HAWKINS AVE. MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA INCIDENT #6174 06/07/04 ND ND ND ND ND ND ND ND ND ND ND ND ND 07/28/09 ND ND ND ND ND ND ND ND ND ND ND ND ND 06/26/18 ND ND ND ND ND ND ND ND ND ND ND ND ND 03/01/19 ND ND ND ND ND ND ND ND ND ND ND ND 0.30J 07/16/19 ND ND ND ND ND ND ND ND ND ND ND ND 1.1 02/18/20 ND ND ND ND ND ND ND ND ND ND ND ND 0.38J 05/21/21 11/23/21 06/01/23 09/12/06 ND ND ND ND ND ND ND ND ND ND ND ND ND 07/28/09 ND ND ND ND ND ND ND ND ND ND ND ND ND 06/26/18 ND ND ND ND ND ND ND ND ND ND ND ND ND 03/01/19 ND ND ND ND ND ND ND ND ND ND ND ND ND 07/16/19 ND ND ND ND ND ND ND ND ND ND ND ND ND 02/18/20 ND ND ND ND ND ND ND ND ND ND ND ND ND 05/21/21 11/23/21 06/01/23 06/07/04 ND ND ND 1.7 ND ND ND ND ND ND ND ND ND 05/21/21 06/07/04 ND 0.76 ND ND 4.2 ND ND ND ND ND ND ND ND 07/28/09 ND ND ND ND ND ND ND ND ND ND ND ND ND WSW-7 06/07/04 ND 0.76 ND ND ND ND ND ND ND ND ND ND ND 06/07/04 300 1.9 28 287.9 160 50 24 38 5.1 5.6 27 9 ND 09/12/06 ND ND ND ND ND ND ND ND ND ND ND ND ND 07/28/09 ND ND ND ND ND ND ND ND ND ND ND ND ND 06/07/04 150 0.66 ND 3 23 4.1 7.5 12 3.7 ND ND ND ND 07/28/09 ND ND ND ND ND ND ND ND ND ND ND ND ND 06/07/04 260 0.87 ND 0.59 45 ND 18 28 4.2 ND ND ND ND 09/12/06 ND ND ND ND ND ND ND ND ND ND ND ND ND 07/28/09 ND ND ND ND ND ND ND ND ND ND ND ND ND 10/17/14 ND ND ND ND ND ND ND ND ND ND ND ND ND 05/14/15 ND ND ND ND ND ND ND ND ND ND ND ND ND 03/10/16 ND ND ND ND ND ND ND ND ND ND ND ND ND 06/26/18 ND ND ND ND ND ND ND ND ND ND ND ND ND 03/01/19 ND ND ND ND ND ND ND ND ND ND ND ND ND 07/16/19 ND ND ND ND ND ND ND ND ND ND ND ND ND 02/18/20 ND ND ND ND ND ND ND ND ND ND ND ND ND 05/21/21 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <5.00 11/23/21 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <5.00 08/12/22 <1.00 <1.00 <1.00 <2.00 <1.00 <5.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <5.00 06/01/23 1 600 600 500 20 6 70 0.4 70 70 400 400 70 5,000 260,000 80,000 50,000 20,000 6,000 70,000 400 30,500 26,100 28,500 24,100 70,000 Notes: 1. MTBE = Methyl Tertiary Butyl Ether. 2. IPE = Isopropyl Ether. 3. "<" or ND = Not detected at or above the laboratory detection limit. 4. Concentrations are reported in micrograms per liter (ug/l) = parts per billion (ppb). 5. Concentrations in bold equal or exceed the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard)- April, 2022. 6. GCL = Gross Contamination Limit. appear to be active and/or the locations are unknown. Not Sampled- Owner Not Available Not Sampled- Owner Not Available 7. J = Indicates constituent was detected above laboratory detection limit but below laboratory reporting limit. WSW-6 WSW-11 GCL WSW-10 WSW-13 Not Sampled - InactiveXylenes (Total)2L Standard NaphthaleneIsopropylbenzenen-Propylbenzene1,2,4-TrimethylbenzeneEthylbenzeneWSW-8 TolueneWSW-2 Analytical Method Well ID Date Collected 1,2-DichloroethaneIPEStandard Method 6200B ChloroformBenzeneMTBE1,3,5-TrimethylbenzeneNot Sampled- Owner Not Available WSW-1 Not Sampled- Owner Not Available 8. Only analytical data for current water supply wells identified during the 2016 receptor survey conducted by ECS are shown. Former wells identified no longer Not Sampled- Owner Not Available Not Sampled- Owner Not Available WSW-3 Not Sampled- Inactive and Unaccessible Page 1 of 1 Middleburg Grocery ATC Project No. STL0617401 NCDEQ State Lead Program FIGURES Project Number: Date:Scale: Drn. By: Ckd. By:H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\SLC0617401-VIC.DWG, FIG107/07/2021 MIDDLEBURG GROCERY US HIGHWAY1/NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDENT #6174 SLC0617401 DH EF 1 1:2,000TOPOGRAPHIC MAP N NORTH HAWKINS AVENUE WALNUT AVENUEBROAD STREETLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEWSW-1ACTIVE WATER SUPPLY WELLWell IdentificationSITEWSW-1WSW-3MW-6MW-5MW-14MW-15MW-4RMW-11RMW-10MW-7RMW-13MW-12MW-1RDW-1MW-2RSCALE: 1" = 60'2004060NFORMER USTLOCATIONFORMER KEROSENEUST LOCATIONMW-1RMONITORING WELLWSW-3INACTIVE WATER SUPPLY WELLWell IdentificationMW-16MW-5RMW-5ABANDONED MONITORING WELLWell IdentificationWell IdentificationMW-17SB-1/MW-18SB-6SB-5SB-4SB-3SB-2SB-2SOIL BORINGBoring IdentificationFigure:Drawing File: Project Number: Ckd. By: Drn. By: App'd By: Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\STL0617401-SITE.DWG, FIG2 SITE MAP06/30/2023SEE LOWER LEFTMIDDLEBURG GROCERY NORTH WESTCORNER OF US HIGHWAY 1/ NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDNET #6174 STL0617401AS SHOWNMS CL2NOTES: 1.Features shown are not an authoritative location, nor are they presentedto a stated accuracy. COORDINATE SYSTEM: NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET 50SCALE: 1" = 200'0100150200N500 FT.RADIUS1,000 FT.RADIUSNORTH HAWKINS AVENUENORTH LEE AVENUEWALNUT AVENUEBROAD STREETNORTH WASHINGTON AVENUENORTH JACKSON AVENUESOUTH CAROL STREETCHESTNUT STREETNORTH HAWKINS AVENUEE O YOUNG ROADLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATE* = TWO WATER SUPPLY WELLS LOCATED ON PROPERTYPARCEL LINEWSW-7INACTIVE WATER SUPPLY WELLWell IdentificationWSW-1ACTIVE WATER SUPPLY WELLWell IdentificationSITEWSW-13WSW-2WSW-1WSW-3WSW-12WSW-11WSW-8WSW-16WSW-15WSW-9WSW-10*WSW-6WSW-7WSW-14Project Number:Date:Drn. By:Ckd. By:Figure:Scale:07/07/2021H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\SLC0617401-WSW.DWG, FIG3 MIDDLEBURG GROCERY NORTHWEST CORNER OF US HIGHWAY1/NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDENT #6174SLC0617401DHEFAS SHOWN3WATER SUPPLY WELL LOCATION MAP WALNUT AVENUE WSW-3MW-6MW-10MW-7RSCALE: 1" = 60'2004060NNSNLNLMW-17NORTH HAWKINS AVENUEBROAD STREETSITEWSW-1MW-15MW-4RMW-11RMW-13MW-12MW-1RDW-1MW-2RFORMER USTLOCATIONFORMER KEROSENEUST LOCATION452.43NL453.13454.53*453.14454.62455.21MW-16451.16MW-18MW-5MW-14NSMW-5R453.50450.49452.00455.0454.5454.0453.5453.0452.5452.0451.5451.0450.5LEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEWSW-1ACTIVE WATER SUPPLY WELLWell Identification455.0GROUNDWATER ELEVATION CONTOUR(DASHED WHERE INFERRED) (ft)GROUNDWATER FLOW DIRECTIONMW-1R454.62MONITORING WELLWell IdentificationRelative Groundwater Elevation (ft)WSW-3INACTIVE WATER SUPPLY WELLWell IdentificationMW-5ABANDONED MONITORING WELLWell IdentificationFigure:Drawing File: Project Number: Ckd. By: Drn. By: App'd By: Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\STL0617401-POT.DWG, FIG5 GROUNDWATER ELEVATION CONTOUR MAP06/30/2023SEE LOWER LEFTMIDDLEBURG GROCERY NORTH WESTCORNER OF US HIGHWAY 1/ NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDNET #6174 STL0617401AS SHOWNMS CL4NOTES: 1.Features shown are not an authoritative location, nor are they presentedto a stated accuracy.2.Ns = Not surveyed. 3.NL = Not located. 4.Groundwater elevations were obtain June 1, 2023. 5.*MW-13 was omitted from interpretation. COORDINATE SYSTEM: NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEETNS NORTH HAWKINS AVENUE WALNUT AVENUEBROAD STREETLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEWSW-1ACTIVE WATER SUPPLY WELLWell IdentificationSITEWSW-1WSW-3MW-6MW-14MW-15MW-4RMW-11RMW-10MW-7RMW-13MW-12MW-1RDW-1MW-2RSCALE: 1" = 60'2004060NFORMER USTLOCATIONFORMER KEROSENEUST LOCATIONMONITORING WELLMW-5MW-16MW-5RMW-5ABANDONED MONITORING WELLWell IdentificationMW-17SB-1/MW-18SB-6SB-5SB-4SB-3SB-2 SB-2SOIL BORINGBoring Identification MW-1RWell IdentificationFigure:Drawing File: Project Number: Ckd. By: Drn. By: App'd By: Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\STL0617401-SOIL.DWG, FIG4 SOIL ANALYTICAL RESULTS06/30/2023SEE LOWER LEFTMIDDLEBURG GROCERY NORTH WESTCORNER OF US HIGHWAY 1/ NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDNET #6174 STL0617401AS SHOWNMS CL5NOTES: 1.Features shown are not an authoritative location, nor are they presentedto a stated accuracy.2.Soil Samples measured in milligrams per kilogram (mg/kg). 3.Results in bold exceed soil to groundwater MSCCs. 4.Results in italics exceed residential MSCCs. COORDINATE SYSTEM: NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET MW-7RSCALE: 1" = 60'2004060NNAWALNUT AVENUEMW-6MW-14MW-15MW-10MW-1RDW-1MW-2RFORMER USTLOCATIONNANA556<1.00NAMW-161,550MW-17NORTH HAWKINS AVENUEBROAD STREETSITEWSW-1WSW-3MW-4RMW-11RMW-13MW-12FORMER KEROSENEUST LOCATION65.7NA3331,450<1.00MW-5MW-5R32.1MW-180.0338J<1.001, 0 0 0 1 0 0 10 1 1, 0 0 0 10 0 10 1SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINE100BENZENE ISOCONCENTRATION CONTOUR(DASHED WHERE INFERRED) (µg/L)LEGEND:WSW-1ACTIVE WATER SUPPLY WELLWell IdentificationMW-1R556MONITORING WELLWell IdentificationBenzene Concentration (µg/L)WSW-3INACTIVE WATER SUPPLY WELLWell IdentificationMW-5ABANDONED MONITORING WELLWell IdentificationFigure:Drawing File: Project Number: Ckd. By: Drn. By: App'd By: Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\STL0617401-BENZ.DWG, FIG6 BENZENE ISOCONCENTRATIONS MAP06/30/2023SEE LOWER LEFTMIDDLEBURG GROCERY NORTH WESTCORNER OF US HIGHWAY 1/ NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDNET #6174 STL0617401AS SHOWNMS CL6NOTES: 1.Features shown are not an authoritative location, nor are they presented to a stated accuracy. 2.NA = Not Analyzed. 3.µg/L = micrograms per liter. 4.Groundwater collected on June 1, 2023. 5.*DW-1 was omitted from interpretation. COORDINATE SYSTEM: NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEET NORTH HAWKINS AVENUE WALNUT AVENUEBROAD STREETLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATEPARCEL LINEWSW-1ACTIVE WATER SUPPLY WELLWell IdentificationSITEWSW-1WSW-3MW-6MW-14MW-15MW-4RMW-11RMW-10MW-7RMW-13MW-12MW-1RDW-1MW-2RSCALE: 1" = 60'2004060NFORMER USTLOCATIONFORMER KEROSENEUST LOCATIONMW-1RMONITORING WELLWell IdentificationNANANANAMW-5MW-16MW-5RMW-5ABANDONED MONITORING WELLWell IdentificationMW-17MW-18NAFigure:Drawing File: Project Number: Ckd. By: Drn. By: App'd By: Ckd. Date:Scale:Date:H:\2023\1 OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\STL0617401-GW.DWG, FIG7 ADDITIONAL CONTAMINANTS OF CONCERN IN GROUNDWATER06/30/2023SEE LOWER LEFTMIDDLEBURG GROCERY NORTH WESTCORNER OF US HIGHWAY 1/ NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDNET #6174 STL0617401AS SHOWNMS CL7NOTES: 1.Features shown are not an authoritative location, nor are they presentedto a stated accuracy.2.NA = Not Analyzed. 3.µg/L = micrograms per liter. 4.J = the identification of the analyte is acceptable; the reporting values is an estimate. 5.Only concentrations exceeding the corresponding NCDEQ Groundwater Quality 2L Standard (2L Standard) are shown. COORDINATE SYSTEM: NAD 1983 NORTH CAROLINA STATE PLANE FIPS 3200, US SURVEY FEETNA Middleburg Grocery ATC Project No. STL0617401 NCDEQ State Lead Program APPENDIX A CONCEPTUAL SITE MODEL Site Name: Middleburg Grocery Date:7/5/2023 Property Owner:Nancy Nasher Last Field Event Date:6/1/2023 Site Name: Middleburg Grocery Release Discovery Date:12/1/1990 NCDEQ UST Incident No.: 6174 Source of Release:Unknown Facility ID No.: Unknown Estimated Volume of Release:Unknown Risk Classification: H1102D Risk Rank: High Gasoline (leaded)No Site Address: NW Corner of US 1 and N. Hawkins Ave Gasoline (unleaded)Yes Site City, ST ZIP:Henderson, 27556 Gasoline (ethanol blend)No Site County:Vance Diesel No NCDEQ Regional Office:Raleigh Kerosene Yes Active UST Facility:No Heating Oil (#2)No USTs Present:None Heating Oil (>#2)No Motor Oil No Hydraulic Oil No Major Soil Type:Sandy silt to sandy clay Used Oil No Surface Cover over impacted soil:Concrete Utilities within plume (Y/N/U):Yes >S-W MSCCs (Y/N/U):Yes >Residential MSCCs (Y/N/U):Yes Site (Current):Vacant commercial >Comm/Ind MSCCs (Y/N/U):No Site (Future):Unknown North Adjacent:Residential East Adjacent:Vacant field, followed by Middleburg Variety Litho-Tectonic Zone Raleigh Belt of the Piedmont Physiographic Region.South Adjacent:Residential and agricultural Geologic Formation Rolesville suite, Wise and Lemon Springs intrusives West Adjacent:Cleared and vacant field Rock Type Foliated to massive granitic rock Depth to Bedrock (ft bgs)Unknown Municipal Water (Y/N/U):No Active Potable Wells <1000 ft (#/U):7 Active Potable Wells <500 ft (#/U):3 Depth to water (ft-bgs)18.87 Impacted Wells (Y/N/U):N Gradient (ft/ft):0.011 Any wells <250 ft (Y/N/U):Yes, WSW-1 Direction (N E S W combo):East Hydraulic Conductivity (ft/day):Unknown <500 ft (Y/N):No Total Porosity (%):Unknown Type of Surface Water:N/A Effective Porosity (%):Unknown Name of Nearest Stream:Fishing Creek Flow Rate (ft/year):Unknown Stream Classification:Class C COCs >2L (Y/N/U):Yes Impacted Surface Water (Y/N/U):No COCs >2L Extent Defined (Y/N):Yes, downgradient and upgradient COCs >GCLs (Y/N/U):No COCs >GCLs (Wells):No >LEL in Structures:Unknown COCs >GCLs Extent Defined (Y/N):Yes Vapors in Buildings:Unknown COCs >2B Standards by 10X (Y/N/U):No Slab-on-grade or Crawlspace:Slab-on-grade LNAPL (Y/N/U):Yes, historical Dissolved VOCs <5 ft of Structures:No LNAPL (Max Thickness ft):0.16 feet, 2013 LNAPL <15 ft of Structures:No LNAPL (Wells):MW-2R Basement <30 ft of Dissolved COCs:N/A LNAPL Extent Defined (Y/N):Yes LNAPL (<5 ft beneath buildings/U):No Utilities within plume (Y/N/U):No Alternative Water Source:N/A NORP:Yes, soil and groundwater Site Remediation:N/A Soil Excavation:N/A AFVR:N/A MMPE:N/A SVE/AS:N/A Other: CONCEPTUAL SITE MODEL Soil Information Possible Path(s) to Closure Site Information Release Information Petroleum Type Released Geologic Information Groundwater Information Comments: Receptor Information Water Supply Vapor Additional Support Documentation Available / Data Gaps: Confirm plume stability, no GCLs exceedences followed by F&T Modeling for site closure. Approach (general discussion):Fate and transport modeling Surface Water Land Use / Zoning Page 1 of 1 Middleburg Grocery ATC Project No. STL0617401 NCDEQ State Lead Program APPENDIX B FIELD NOTES Middleburg Grocery ATC Project No. STL0617401 NCDEQ State Lead Program APPENDIX C WELL CONSTRUCTION RECORDS AND BORING LOGS WELL CONSTRUCTION RECORD (GW-1) For Internal Use Only: Form GW-1 North Carolina Department of Environmental Quality - Division of Water Resources Revised 2-22-2016 1. Well Contractor Information: Well Contractor Name NC Well Contractor Certification Number Company Name 2. Well Construction Permit #: List all applicable well construction permits (i.e. UIC, County, State, Variance, etc.) 3. Well Use (check well use): Water Supply Well: □Agricultural □Municipal/Public □Geothermal (Heating/Cooling Supply) □Residential Water Supply (single) □Industrial/Commercial □Residential Water Supply (shared) □Irrigation Non-Water Supply Well: □Monitoring □Recovery Injection Well: □Aquifer Recharge □Groundwater Remediation □Aquifer Storage and Recovery □Salinity Barrier □Aquifer Test □Stormwater Drainage □Experimental Technology □Subsidence Control □Geothermal (Closed Loop) □Tracer □Geothermal (Heating/Cooling Return) □Other (explain under #21 Remarks) 4. Date Well(s) Completed: Well ID# 5a. Well Location: Facility/Owner Name Facility ID# (if applicable) Physical Address, City, and Zip County Parcel Identification No. (PIN) 5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees: (if well field, one lat/long is sufficient) N W 6. Is(are) the well(s): □Permanent or □Temporary 7. Is this a repair to an existing well: □Yes or □No If this is a repair, fill out known well construction information and explain the nature of the repair under #21 remarks section or on the back of this form. 8. For Geoprobe/DPT or Closed-Loop Geothermal Wells having the same construction, only 1 GW-1 is needed. Indicate TOTAL NUMBER of wells drilled: 9. Total well depth below land surface: (ft.) For multiple wells list all depths if different (example- 3@200’ and 2@100′) 10. Static water level below top of casing: (ft.) If water level is above casing, use “+” 11. Borehole diameter: (in.) 12. Well construction method: (i.e. auger, rotary, cable, direct push, etc.) FOR WATER SUPPLY WELLS ONLY: 13a. Yield (gpm) Method of test: 13b. Disinfection type: Amount: 14. WATER ZONES FROM TO DESCRIPTION ft. ft. ft. ft. 15. OUTER CASING (for multi-cased wells) OR LINER (if applicable) FROM TO DIAMETER THICKNESS MATERIAL ft. ft. in. 16. INNER CASING OR TUBING (geothermal closed-loop) FROM TO DIAMETER THICKNESS MATERIAL ft. ft. in. ft. ft. in. 17. SCREEN FROM TO DIAMETER SLOT SIZE THICKNESS MATERIAL ft. ft. in. ft. ft. in. 18. GROUT FROM TO MATERIAL EMPLACEMENT METHOD & AMOUNT ft. ft. ft. ft. ft. ft. 19. SAND/GRAVEL PACK (if applicable) FROM TO MATERIAL EMPLACEMENT METHOD ft. ft. ft. ft. 20. DRILLING LOG (attach additional sheets if necessary) FROM TO DESCRIPTION (color, hardness, soil/rock type, grain size, etc.) ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. 21. REMARKS 22. Certification: Signature of Certified Well Contractor Date By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with 15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy of this record has been provided to the well owner. 23. Site diagram or additional well details: You may use the back of this page to provide additional well site details or well construction details. You may also attach additional pages if necessary. SUBMITTAL INSTRUCTIONS 24a. For All Wells: Submit this form within 30 days of completion of well construction to the following: Division of Water Resources, Information Processing Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617 24b. For Injection Wells: In addition to sending the form to the address in 24a above, also submit one copy of this form within 30 days of completion of well construction to the following: Division of Water Resources, Underground Injection Control Program, 1636 Mail Service Center, Raleigh, NC 27699-1636 24c. For Water Supply & Injection Wells: In addition to sending the form to the address(es) above, also submit one copy of this form within 30 days of completion of well construction to the county health department of the county where constructed. John Allen 4196 - B Ameriprobe #6174 5/25/23 MW-17 Middleburg Grocery 7075 Broad Street, Middleburg, NC Vance 36.3998440 78.3223895 20 13 8 Auger 6/29/23 13 20 0 10 2 SCH40 PVC 10 20 2 0.010 SCH40 PVC 0 4 8 4 8 20 Neat Cement Bentonite #2 Sand Poured Through Augers Poured Through Augers See Consultant's Logs 2' X 2' Concrete Flushmount Pad Print Form Poured Through Augers WELL CONSTRUCTION RECORD (GW-1) For Internal Use Only: Form GW-1 North Carolina Department of Environmental Quality - Division of Water Resources Revised 2-22-2016 1. Well Contractor Information: Well Contractor Name NC Well Contractor Certification Number Company Name 2. Well Construction Permit #: List all applicable well construction permits (i.e. UIC, County, State, Variance, etc.) 3. Well Use (check well use): Water Supply Well: □Agricultural □Municipal/Public □Geothermal (Heating/Cooling Supply) □Residential Water Supply (single) □Industrial/Commercial □Residential Water Supply (shared) □Irrigation Non-Water Supply Well: □Monitoring □Recovery Injection Well: □Aquifer Recharge □Groundwater Remediation □Aquifer Storage and Recovery □Salinity Barrier □Aquifer Test □Stormwater Drainage □Experimental Technology □Subsidence Control □Geothermal (Closed Loop) □Tracer □Geothermal (Heating/Cooling Return) □Other (explain under #21 Remarks) 4. Date Well(s) Completed: Well ID# 5a. Well Location: Facility/Owner Name Facility ID# (if applicable) Physical Address, City, and Zip County Parcel Identification No. (PIN) 5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees: (if well field, one lat/long is sufficient) N W 6. Is(are) the well(s): □Permanent or □Temporary 7. Is this a repair to an existing well: □Yes or □No If this is a repair, fill out known well construction information and explain the nature of the repair under #21 remarks section or on the back of this form. 8. For Geoprobe/DPT or Closed-Loop Geothermal Wells having the same construction, only 1 GW-1 is needed. Indicate TOTAL NUMBER of wells drilled: 9. Total well depth below land surface: (ft.) For multiple wells list all depths if different (example- 3@200’ and 2@100′) 10. Static water level below top of casing: (ft.) If water level is above casing, use “+” 11. Borehole diameter: (in.) 12. Well construction method: (i.e. auger, rotary, cable, direct push, etc.) FOR WATER SUPPLY WELLS ONLY: 13a. Yield (gpm) Method of test: 13b. Disinfection type: Amount: 14. WATER ZONES FROM TO DESCRIPTION ft. ft. ft. ft. 15. OUTER CASING (for multi-cased wells) OR LINER (if applicable) FROM TO DIAMETER THICKNESS MATERIAL ft. ft. in. 16. INNER CASING OR TUBING (geothermal closed-loop) FROM TO DIAMETER THICKNESS MATERIAL ft. ft. in. ft. ft. in. 17. SCREEN FROM TO DIAMETER SLOT SIZE THICKNESS MATERIAL ft. ft. in. ft. ft. in. 18. GROUT FROM TO MATERIAL EMPLACEMENT METHOD & AMOUNT ft. ft. ft. ft. ft. ft. 19. SAND/GRAVEL PACK (if applicable) FROM TO MATERIAL EMPLACEMENT METHOD ft. ft. ft. ft. 20. DRILLING LOG (attach additional sheets if necessary) FROM TO DESCRIPTION (color, hardness, soil/rock type, grain size, etc.) ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. ft. 21. REMARKS 22. Certification: Signature of Certified Well Contractor Date By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with 15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy of this record has been provided to the well owner. 23. Site diagram or additional well details: You may use the back of this page to provide additional well site details or well construction details. You may also attach additional pages if necessary. SUBMITTAL INSTRUCTIONS 24a. For All Wells: Submit this form within 30 days of completion of well construction to the following: Division of Water Resources, Information Processing Unit, 1617 Mail Service Center, Raleigh, NC 27699-1617 24b. For Injection Wells: In addition to sending the form to the address in 24a above, also submit one copy of this form within 30 days of completion of well construction to the following: Division of Water Resources, Underground Injection Control Program, 1636 Mail Service Center, Raleigh, NC 27699-1636 24c. For Water Supply & Injection Wells: In addition to sending the form to the address(es) above, also submit one copy of this form within 30 days of completion of well construction to the county health department of the county where constructed. John Allen 4196 - B Ameriprobe #6174 5/25/23 MW-18 Middleburg Grocery 7075 Broad Street, Middleburg, NC Vance 36.3995847 78.3229792 20 13 8 Auger 6/29/23 13 20 0 10 2 SCH40 PVC 10 20 2 0.010 SCH40 PVC 0 4 8 4 8 20 Neat Cement Bentonite #2 Sand Poured Through Augers Poured Through Augers See Consultant's Logs 2' X 2' Concrete Flushmount Pad Print Form Poured Through Augers 06-30-2023 Z:\Enviro\NCDENR State Lead Contract\Kristie Sites\Middleburg\Boring Logs\MW-17.borATC Project No. STL0617401 Middleburg, North Carolina & North Hawkins Avenue NW Corner of US Hwy 1/NC Hwy 158 Middleburg Grocery ft bgs = feet below ground surface DPT = direct push technology HSA = hollow stem auger BORING LOG: MW-17 (Page 1 of 1) Date(s) Drilled : 5/25/23 Drilling Contractor : Ameriprobe, Inc. Drilling Method : DPT / HSA Boring Diameter : 3.25 inches Sampling Method : Continuous Sampling Interval : Continuous Logged By : GL Depth in Feet0 5 10 15 20 USCSSM ML SM SC GRAPHICDESCRIPTION Brown, orange SILTY fine to coarse SAND, no odor, dry Orange, brown fine to coarse SANDY SILT, no odor, dry Brown, orange SILTY fine to corase SAND, no odor, dry White, tan fine to coarse grained CLAYEY SAND, no odor, moist End of boring VOCs (ppm) 0.0 1.0 1.4 Boring: MW-17 Grout Bent. Seal Sand Pack Cover Riser Screen 06-30-2023 Z:\Enviro\NCDENR State Lead Contract\Kristie Sites\Middleburg\Boring Logs\MW-18.borATC Project No. STL0617401 Middleburg, North Carolina & North Hawkins Avenue NW Corner of US Hwy 1/NC Hwy 158 Middleburg Grocery ft bgs = feet below ground surface DPT = direct push technology HSA = hollow stem auger BORING LOG: MW-18/SB-1 (Page 1 of 1) Date(s) Drilled : 5/25/23 Drilling Contractor : Ameriprobe, Inc. Drilling Method : DPT / HSA Boring Diameter : 3.25 inches Sampling Method : Continuous Sampling Interval : Continuous Logged By : GL Depth in Feet0 5 10 15 20 USCSFB MH ML SM SC GRAPHICDESCRIPTION Concrete Red, white, brown CLAYEY SILT, dry Orange, black, white fine to coarse SANDY SILT, dry Orange, brown, white SILTY fine to coarse SAND, dry White, brown, orange CLAYEY fine to coarse SAND, moist, damp at 16' End of boring VOCs (ppm) 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 Boring: MW-18/SB-1 Grout Bent. Seal Sand Pack Cover Riser Screen 06-30-2023 Z:\Enviro\NCDENR State Lead Contract\Kristie Sites\Middleburg\Boring Logs\SB-2.borATC Project No. STL0617401 Middleburg, North Carolina & North Hawkins Avenue NW Corner of US Hwy 1/NC Hwy 158 Middleburg Grocery ft bgs = feet below ground surface DPT = direct push technology HSA = hollow stem auger BORING LOG: SB-2 (Page 1 of 1) Date(s) Drilled : 5/25/23 Drilling Contractor : Ameriprobe, Inc. Drilling Method : DPT / HSA Boring Diameter : 3.25 inches Sampling Method : Continuous Sampling Interval : Continuous Logged By : GL Depth in Feet0 5 10 15 20 USCSML MH ML SM GRAPHICDESCRIPTION Brown, orange, black fine to coarse SANDY SILT, dry Orange, red, brown CLAYEY SILT, dry, trace sand Orange, black, white fine to coarse SANDY SILT, moist at 12 Tan, orange SILTY fine to coarse SAND, moist End of boring VOCs (ppm) 0.7 0.0 0.3 0.5 0.4 2.6 2.5 2.8 2.9 2.4 2.0 2.2 2.2 2.4 2.1 2.0 1.6 2.0 3.0 3.5 06-30-2023 Z:\Enviro\NCDENR State Lead Contract\Kristie Sites\Middleburg\Boring Logs\SB-3.borATC Project No. STL0617401 Middleburg, North Carolina & North Hawkins Avenue NW Corner of US Hwy 1/NC Hwy 158 Middleburg Grocery ft bgs = feet below ground surface DPT = direct push technology HSA = hollow stem auger BORING LOG: SB-3 (Page 1 of 1) Date(s) Drilled : 5/25/23 Drilling Contractor : Ameriprobe, Inc. Drilling Method : DPT / HSA Boring Diameter : 3.25 inches Sampling Method : Continuous Sampling Interval : Continuous Logged By : GL Depth in Feet0 5 10 15 20 USCSML MH ML SM GRAPHICDESCRIPTION Brown, fine to coarse SANDY SILT, dry Orange, red, brown CLAYEY SILT, dry Orange, brown, white fine to coarse SANDY SILT, dry Tan, black, white SILTY fine to coarse SAND, dry End of boring VOCs (ppm) 0.4 0.2 0.3 0.2 0.2 0.1 1.5 2.7 2.4 1.5 1.6 2.6 1.0 1.6 1.7 1.6 2.4 2.4 2.0 2.0 06-30-2023 Z:\Enviro\NCDENR State Lead Contract\Kristie Sites\Middleburg\Boring Logs\SB-4.borATC Project No. STL0617401 Middleburg, North Carolina & North Hawkins Avenue NW Corner of US Hwy 1/NC Hwy 158 Middleburg Grocery ft bgs = feet below ground surface DPT = direct push technology HSA = hollow stem auger BORING LOG: SB-4 (Page 1 of 1) Date(s) Drilled : 5/26/23 Drilling Contractor : Ameriprobe, Inc. Drilling Method : DPT / HSA Boring Diameter : 3.25 inches Sampling Method : Continuous Sampling Interval : Continuous Logged By : GL Depth in Feet0 5 10 15 20 USCSFB MH ML SM GRAPHICDESCRIPTION Concrete Orange, brown CLAYEY SILT, dry Orange, tan fine to coarse SANDY SILTY, dry Orange, brown, white SILTY fine to coarse SAND, moist End of boring VOCs (ppm) 4.2 3.2 2.8 2.3 1.5 1.4 1.6 1.4 1.8 0.9 2.3 2.8 1.5 4.7 2.7 1.8 2.2 1.3 1.1 1.1 06-30-2023 Z:\Enviro\NCDENR State Lead Contract\Kristie Sites\Middleburg\Boring Logs\SB-5.borATC Project No. STL0617401 Middleburg, North Carolina & North Hawkins Avenue NW Corner of US Hwy 1/NC Hwy 158 Middleburg Grocery ft bgs = feet below ground surface DPT = direct push technology HSA = hollow stem auger BORING LOG: SB-5 (Page 1 of 1) Date(s) Drilled : 5/26/23 Drilling Contractor : Ameriprobe, Inc. Drilling Method : DPT / HSA Boring Diameter : 3.25 inches Sampling Method : Continuous Sampling Interval : Continuous Logged By : GL Depth in Feet0 5 10 15 20 USCSFB MH CH ML SM GRAPHICDESCRIPTION Concrete Brown, orange, CLAYEY SILT, dry Gray, orange, brown SILTY CLAY, dry Orange, gray, tan fine to coarse SANDY SILT, moist Brown, orange SILTY fine to coarse SAND, damp, wet at 17', strong odor at 17' End of boring VOCs (ppm) 2.6 2.6 1.6 2.9 1.8 2.4 10.3 69.5 144.4 283.4 528.8 747.2 2504 2606 1666 1091 1748 1429 1455 1418 07-03-2023 Z:\Enviro\NCDENR State Lead Contract\Kristie Sites\Middleburg\Boring Logs\SB-6.borATC Project No. STL0617401 Middleburg, North Carolina & North Hawkins Avenue NW Corner of US Hwy 1/NC Hwy 158 Middleburg Grocery ft bgs = feet below ground surface DPT = direct push technology HSA = hollow stem auger BORING LOG: SB-6 (Page 1 of 1) Date(s) Drilled : 5/26/23 Drilling Contractor : Ameriprobe, Inc. Drilling Method : DPT / HSA Boring Diameter : 3.25 inches Sampling Method : Continuous Sampling Interval : Continuous Logged By : GL Depth in Feet0 5 10 15 20 USCSFB MH CH CL ML SM GRAPHICDESCRIPTION Concrete Orange, brown, white CLAYEY SILT, dry Orange, white SILTY CLAY, dry Orange, brown, white fine to coarse SANDY CLAY, moist Brown, orange SILTY fine to coarse SAND, dry Orange, white, brown SILTY fine to coarse SAND, moist, strong odor at 18' End of boring VOCs (ppm) 6.8 13.2 7.2 5.2 7.9 10.0 29.6 39.5 101.3 123.4 89.1 91.8 66.7 61.4 342.3 107.8 360.9 468.0 1438 824.1 Middleburg Grocery ATC Project No. STL0617401 NCDEQ State Lead Program APPENDIX D ACCESS AGREEMENT AND MONITORING WELL PERMIT 1 Corinne Lally From:Clark, Timothy W <timothy.clark@deq.nc.gov> Sent:Tuesday, May 23, 2023 4:08 PM To:Corinne Lally Subject:RE: [External] Well permit update Corinne, Good speaking with you just now about your monitoring well permit applications. As I mentioned on the phone, all delegated signature authority has been temporarily suspended at DEQ (all divisions, not just Water Resources) duw to a judge’s ruling in an unrelated case. You permit applications were caught up in that hold until the issue is resolved. During the hold your permits exceeded the 15-day statutory deadline and have been automatically deemed permitted. Your permits are approved, we just can’t send you signed final permits at this time. You may commence with installation activities. The signature hold is temporary and we hope it will be resolved by the end of the month. Continue sending me future permit applications for review and approval. Timothy “Tyler” Clark (he/him/his) Hydrogeologist, Division of Water Resources North Carolina Department of Environmental Quality Office: (919) 791-4234 timothy.clark@ncdenr.gov From: Corinne Lally <Corinne.Lally@oneatlas.com> Sent: Friday, May 19, 2023 12:12 PM To: Clark, Timothy W <timothy.clark@deq.nc.gov> Subject: [External] Well permit update CAUTION: External email. Do not click links or open attachments unless verified. Report suspicious emails with the Report Message button located on your Outlook menu bar on the Home tab. Hello Tyler, I sent two well permits at the end of March, and I just wanted to check on the status. The permits are for 7075 Broad Street and 7109 Broad Street in Middleburg, Vance County. We are schedule to drill on the 5/25. Please let me know if you need anything else for these permits. Thank you! 2 Corinne Lally | Staff Scientist | ATC Associates of North Carolina, P.C. O: 919.871.0999 | C: 803.722.8512 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina 27604 OneAtlas.com I LinkedIn I Facebook I Twitter ENR #13 Top Construction Management Firm ENR #8 Top Environmental Management Firm ENR #44 Top Program Management Firm This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and/or confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any use and/or dissemination of any of this communication is strictly prohibited. If you have received this communication in error, notify the sender immediately by return email and delete the message and any attachments from your system. Email correspondence to and from this address may be subject to the North Carolina Public Records Law and may be disclosed to third parties by an authorized state official. 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina 27604 Telephone 919-871-0999 Fax 919-871-0335 www.atcgroupservices.com April 20, 2023 Mr. Eric Rice, P.G. North Carolina Department of Environmental Quality Raleigh Regional Office Division of Water Quality, Water Quality Regional Operations Section 3800 Barrett Drive Raleigh, North Carolina 27609 Re: Permit to Construct Monitoring Wells Middleburg Grocery Northwest Corner of US Highway 1/NC Highway 158 & North Hawkins Avenue Middleburg, Vance County, North Carolina NCDEQ Incident No. 6174 ATC Project No. SLC0617403 Dear Mr. Rice: Enclosed please find one application for a permit to construct one Type II monitoring well. The monitoring well will be located at 7109 Broad Street (PIN 0604 02007) in Middleburg, Vance County, North Carolina. The permit application, site map with the proposed locations of the monitoring wells, well construction details, and other relevant information are enclosed as attachments. Please review this package and return the approved permit to this office. If you have any questions or require additional information, please contact our office at (919) 871-0999. Sincerely, ATC Associates of North Carolina, P.C. Corinne Lally Staff Scientist FOR OFFICE USE ONLY PERMIT NO. ISSUED DATE NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY - DIVISION OF WATER RESOURCES APPLICATION FOR PERMIT TO CONSTRUCT A MONITORING OR RECOVERY WELL SYSTEM PLEASE TYPE OR PRINT CLEARLY In accordance with the provisions of Article 7, Chapter 87, General Statutes of North Carolina and regulations pursuant thereto, application is hereby made for a permit to construct monitoring or recovery wells. 1. Date: 4/20/2023 2. County: Vance 3. What type of well are you applying for? (monitoring or recovery): Monitoring Well 4. Applicant: Kristie Oseguera – NCDEQ State Lead Telephone: 919-707-8169 Applicant’s Mailing Address: 1646 Mail Service Center, Raleigh, NC 27699 Applicant’s Email Address (if available): kristie.oseguera@ncdenr.gov 5. Contact Person (if different than Applicant): Corinne Lally Telephone: 919-871-0999 Contact Person’s Mailing Address: 2725 E. Millbrook Road, Suite 121, Raleigh, NC 27604 Contact Person’s Email Address (if available): corinne.lally@oneatlas.com 6. Property Owner (if different than Applicant): Adnan Y. Nasher Telephone: 252-425-2267 Property Owner’s Mailing Address: PO Box 187, Middleburg, NC 27556 Property Owner’s Email Address (if available): Unknown 7. Property Physical Address (Including PIN Number) 7109 Broad Street (PIN: 0604 01001) City Middleburg County Vance Zip Code 27556 8. Reason for Well(s): Groundwater Contamination (ex: non-discharge permit requirements, suspected contamination, assessment, groundwater contamination, remediation, etc.) 9. Type of facility or site for which the well(s) is(are) needed: UST (ex: non-discharge facility, waste disposal site, landfill, UST, etc.) 10. Are there any current water quality permits or incidents associated with this facility or site? If so, list permit and/or incident no(s). NCDEQ Incident #6174 11. Type of contaminants being monitored or recovered: Petroleum Hydrocarbons (ex: organics, nutrients, heavy metals, etc.) 12. Are there any existing wells associated with the proposed well(s)? If yes, how many? 13 Existing Monitoring or Recovery Well Construction Permit No(s).: NA 13. Distance from proposed well(s) to nearest known waste or pollution source (in feet): 120 feet (former canopy) and 515 feet 14. Are there any water supply wells located less than 500 feet from the proposed well(s)? No If yes, give distance(s): 15. Well Contractor: Ameriprobe, LLC Certification No.: 4196-B Well Contractor Address: P.O. Box 135, Huntersville, NC 28070 PROPOSED WELL CONSTRUCTION INFORMATION 1. As required by 15A NCAC 02C .0105(f)(7), attach a well construction diagram of each well showing the following: a. Borehole and well diameter e. Type of casing material and thickness b. Estimated well depth f. Grout horizons c. Screen intervals g. Well head completion details d. Sand/gravel pack intervals Continued on Reverse PROPOSED WELL CONSTRUCTION INFORMATION (Continued) 2. Number of wells to be constructed in unconsolidated material: 1 3. Number of wells to be constructed in bedrock: 0 4. Total Number of wells to be constructed: 1 (add answers from 2 and 3) 5. How will the well(s) be secured? Locking well cap, 8” flush mount manhole cover 6. Estimated beginning construction date: 5/25/2023 7. Estimated construction completion date: 5/26/2023 ADDITIONAL INFORMATION 1. As required by 15A NCAC 02C .0105(f)(5), attach a scaled map of the site showing the locations of the following: a. All property boundaries, at least one of which is referenced to a minimum of two landmarks such as identified roads, intersections, streams, or lakes within 500 feet of the proposed well or well system. b. All existing wells, identified by type of use, within 500 feet of the proposed well or well system. c. The proposed well or well system. d. Any test borings within 500 feet of proposed well or well system. e. All sources of known or potential groundwater contamination (such as septic tank systems, pesticide, chemical or fuel storage areas, animal feedlots as defined in G.S. 143-215.10B(5), landfills, or other waste disposal areas) within 500 feet of the proposed well or well system. SIGNATURES The Applicant hereby agrees that the proposed well(s) will be constructed in accordance with approved specifications and conditions of this Well Construction Permit as regulated under the Well Construction Standards (Title 15A of the North Carolina Administrative Code, Subchapter 2C) and accepts full responsibility for compliance with these rules Staff Scientist (Agent for NCDEQ State Lead) Signature of Applicant or *Agent Title of Applicant or *Agent Corinne Lally * If signing as Agent, attach authorization agreement stating Printed name of Applicant or *Agent that you have the authority to act as the Agent. If the property is owned by someone other than the applicant, the property owner hereby consents to allow the applicant to construct wells as outlined in this Well Construction Permit application and that it shall be the responsibility of the applicant to ensure that the well(s) conform to the Well Construction Standards (Title 15A of the North Carolina Administrative Code, Subchapter 2C). See attached See attached Signature of Property Owner (if different than Applicant) Printed name of Property Owner (if different than Applicant) DIRECTIONS Please send the completed application to the appropriate Division of Water Resources’ Regional Office: Asheville Regional Office 2090 U.S. Highway 70 Swannanoa, NC 28778 Phone: (828) 296-4500 Fax: (828) 299-7043 Fayetteville Regional Office 225 Green Street, Suite 714 Fayetteville, NC 28301-5094 Phone: (910) 433-3300 Fax: (910) 486-0707 Mooresville Regional Office 610 East Center Avenue Mooresville, NC 28115 Phone: (704) 663-1699 Fax: (704) 663-6040 Raleigh Regional Office 3800 Barrett Drive Raleigh, NC 27609 Phone: (919) 791-4200 Fax: (919) 571-4718 Washington Regional Office 943 Washington Square Mall Washington, NC 27889 Phone: (252) 946-6481 Fax: (252) 975-3716 Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405 Phone: (910) 796-7215 Fax: (910) 350-2004 Winston-Salem Regional Office 450 W. Hanes Mill Road Suite 300 Winston-Salem, NC 27105 Phone: (336) 776-9800 Fax: (336) 776-9797 GW-22MR Rev. 3-1-2016 MONITORING WELL CONSTRUCTION DETAILS FLUSH GRADE MANHOLE CROSS SECTIONAL VIEW (NOT TO SCALE) LOCKABLE WELL CAP PROTECTIVE CASING AND CONCRETE PAD L1 CASING MATERIAL sch 40 PVC CASING DIAMETER 8 inches CASING LENGTH 12 inches PAD DIMENSIONS 2 feet x 2 feet HEIGHT ABOVE GROUND flush mounted WELL CASING MATERIAL sch 40 PVC DIAMETER 2 inches JOINT TYPE flush threaded LENGTH 10 feet L2 BACKFILL AROUND CASING MATERIAL cement grout THICKNESS 5 feet SEAL TYPE OF SEAL bentonite L4 THICKNESS 3 feet FILTER PACK TYPE OF FILTER #2 silica sand DISTANCE ABOVE SCREEN 2 feet TOTAL FILTER PACK LENGTH 12 feet WELL SCREEN L3 SCREEN MATERIAL sch 40 PVC DIAMETER 2 inches LENGTH 20 feet SLOT SIZE 0.010 inches DEPTH TO BOTTOM OF MONITORING WELL 30 feet DEPTH TO BOTTOM OF BOREHOLE 30 feet L1 =0 FT. L2 =10 FT.DIAMETER OF BOREHOLE 6 inches L3 =20 FT. L4 =30 FT. TITLE Monitoring Well Middleburg Grocery 2725 East Millbrook Road NW Corner of US Hwy 1 & N. Hawkins Ave.Suite 121 Middleburg, Vance County Raleigh, North Carolina 27604 North Carolina FILE PREP. BY REV. BY DATE PROJECT NO. CL GA 4/21/2023 SLC0617401 50 SCALE: 1" = 200'0100150200N500 FT.RADIUS1,000 FT.RADIUSNORTH HAWKINS AVENUENORTH LEE AVENUEWALNUT AVENUEBROAD STREETNORTH WASHINGTON AVENUENORTH JACKSON AVENUESOUTH CAROL STREETCHESTNUT STREETNORTH HAWKINS AVENUEE O YOUNG ROADLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATE* = TWO WATER SUPPLY WELLS LOCATED ON PROPERTYPARCEL LINEWSW-7INACTIVE WATER SUPPLY WELLWell IdentificationWSW-1ACTIVE WATER SUPPLY WELLWell IdentificationSITEWSW-13WSW-2WSW-1WSW-3WSW-12WSW-11WSW-8WSW-16WSW-15WSW-9WSW-10*WSW-6WSW-7WSW-14Project Number:Date:Drn. By:Ckd. By:Figure:Scale:07/07/2021H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\SLC0617401-WSW.DWG, FIG3 MIDDLEBURG GROCERY NORTHWEST CORNER OF US HIGHWAY1/NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDENT #6174SLC0617401DHEFAS SHOWN3WATER SUPPLY WELL LOCATION MAP XX= Proposed permanent monitoring well 2725 E. Millbrook Road, Suite 121 Raleigh, NC 27604 Telephone 919-871-0999 www.atcgroupservices.com March 29, 2023 Adnan Y Nasher PO Box 187 Middleburg, North Carolina 27556 Subject: Access Agreement for Environmental Assessment Middleburg Grocery Northwest Corner of US Highway 1/NC Highway 158 & North Hawkins Avenue Middleburg, Vance County, North Carolina NCDEQ Incident No. 6174 Dear Mr. Nasher: ATC Associates of North Carolina, P.C. (ATC), on behalf of the North Carolina Department of Environmental Quality (NCDEQ), is conducting an environmental assessment at the Middleburg Grocery site located at the northwest corner of US Highway 1/NC Highway 158 & North Hawkins Avenue in Middleburg, Vance County, North Carolina. As part of the assessment activities, ATC is requesting permission to access your property located at 7109 Broad Street (Parcel ID 0604 01001) in Middleburg, North Carolina for the purpose of conducting an assessment and/or remediation of the groundwater and/or soils. A map showing the location of your property in reference to the site property and the locations of the proposed monitoring wells is included following this letter. You, as the property owner, will not be held responsible or held liable for any damages or expenses for injury to persons or property while ATC is on the premises. Please provide your authorization and approval by signing the attached signature page in the enclosed envelope by April 28, 2023. Acknowledgement of this form is required by NCDEQ. Denial of site access will be forward to NCDEQ for their pursuit of site access. If you have any questions regarding these activities, please do not hesitate to contact Corinne Lally with ATC at corinne.lally@oneatlas.com or (919) 871-0999 or Kristie Oseguera with NCDEQ at kristie.oseguera@ncdenr.gov or (919) 707-8200. Sincerely, ATC Associates of North Carolina, P.C. Corinne Lally . Staff Scientist Enclosures: 1. Signature Page 2. Map of Proposed Monitoring Well Locations 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina 27604 Telephone 919-871-0999 Fax 919-871-0335 www.atcgroupservices.com April 20, 2023 Mr. Eric Rice, P.G. North Carolina Department of Environmental Quality Raleigh Regional Office Division of Water Quality, Water Quality Regional Operations Section 3800 Barrett Drive Raleigh, North Carolina 27609 Re: Permit to Construct Monitoring Wells Middleburg Grocery Northwest Corner of US Highway 1/NC Highway 158 & North Hawkins Avenue Middleburg, Vance County, North Carolina NCDEQ Incident No. 6174 ATC Project No. SLC0617403 Dear Mr. Rice: Enclosed please find one application for a permit to construct one Type II monitoring well. The monitoring well will be located at 7075 Broad Street (PIN 0604 02007) in Middleburg, Vance County, North Carolina. The permit application, site map with the proposed locations of the monitoring wells, well construction details, and other relevant information are enclosed as attachments. Please review this package and return the approved permit to this office. If you have any questions or require additional information, please contact our office at (919) 871-0999. Sincerely, ATC Associates of North Carolina, P.C. Corinne Lally Staff Scientist FOR OFFICE USE ONLY PERMIT NO. ISSUED DATE NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY - DIVISION OF WATER RESOURCES APPLICATION FOR PERMIT TO CONSTRUCT A MONITORING OR RECOVERY WELL SYSTEM PLEASE TYPE OR PRINT CLEARLY In accordance with the provisions of Article 7, Chapter 87, General Statutes of North Carolina and regulations pursuant thereto, application is hereby made for a permit to construct monitoring or recovery wells. 1. Date: 4/20/2023 2. County: Vance 3. What type of well are you applying for? (monitoring or recovery): Monitoring Well 4. Applicant: Kristie Oseguera – NCDEQ State Lead Telephone: 919-707-8169 Applicant’s Mailing Address: 1646 Mail Service Center, Raleigh, NC 27699 Applicant’s Email Address (if available): kristie.oseguera@ncdenr.gov 5. Contact Person (if different than Applicant): Corinne Lally Telephone: 919-871-0999 Contact Person’s Mailing Address: 2725 E. Millbrook Road, Suite 121, Raleigh, NC 27604 Contact Person’s Email Address (if available): corinne.lally@oneatlas.com 6. Property Owner (if different than Applicant): Adnan Y. Nasher Telephone: 252-425-2267 Property Owner’s Mailing Address: PO Box 187, Middleburg, NC 27556 Property Owner’s Email Address (if available): Unknown 7. Property Physical Address (Including PIN Number) 7075 Broad Street (PIN: 0604 02007) City Middleburg County Vance Zip Code 27556 8. Reason for Well(s): Groundwater Contamination (ex: non-discharge permit requirements, suspected contamination, assessment, groundwater contamination, remediation, etc.) 9. Type of facility or site for which the well(s) is(are) needed: UST (ex: non-discharge facility, waste disposal site, landfill, UST, etc.) 10. Are there any current water quality permits or incidents associated with this facility or site? If so, list permit and/or incident no(s). NCDEQ Incident #6174 11. Type of contaminants being monitored or recovered: Petroleum Hydrocarbons (ex: organics, nutrients, heavy metals, etc.) 12. Are there any existing wells associated with the proposed well(s)? If yes, how many? 13 Existing Monitoring or Recovery Well Construction Permit No(s).: NA 13. Distance from proposed well(s) to nearest known waste or pollution source (in feet): 285 feet and 400 feet 14. Are there any water supply wells located less than 500 feet from the proposed well(s)? Yes If yes, give distance(s): 250/470 feet (WSW-1) and 495 feet (WSW-2) 15. Well Contractor: Ameriprobe, LLC Certification No.: 4196-B Well Contractor Address: P.O. Box 135, Huntersville, NC 28070 PROPOSED WELL CONSTRUCTION INFORMATION 1. As required by 15A NCAC 02C .0105(f)(7), attach a well construction diagram of each well showing the following: a. Borehole and well diameter e. Type of casing material and thickness b. Estimated well depth f. Grout horizons c. Screen intervals g. Well head completion details d. Sand/gravel pack intervals Continued on Reverse PROPOSED WELL CONSTRUCTION INFORMATION (Continued) 2. Number of wells to be constructed in unconsolidated material: 1 3. Number of wells to be constructed in bedrock: 0 4. Total Number of wells to be constructed: 1 (add answers from 2 and 3) 5. How will the well(s) be secured? Locking well cap, 8” flush mount manhole cover 6. Estimated beginning construction date: 5/25/2023 7. Estimated construction completion date: 5/26/2023 ADDITIONAL INFORMATION 1. As required by 15A NCAC 02C .0105(f)(5), attach a scaled map of the site showing the locations of the following: a. All property boundaries, at least one of which is referenced to a minimum of two landmarks such as identified roads, intersections, streams, or lakes within 500 feet of the proposed well or well system. b. All existing wells, identified by type of use, within 500 feet of the proposed well or well system. c. The proposed well or well system. d. Any test borings within 500 feet of proposed well or well system. e. All sources of known or potential groundwater contamination (such as septic tank systems, pesticide, chemical or fuel storage areas, animal feedlots as defined in G.S. 143-215.10B(5), landfills, or other waste disposal areas) within 500 feet of the proposed well or well system. SIGNATURES The Applicant hereby agrees that the proposed well(s) will be constructed in accordance with approved specifications and conditions of this Well Construction Permit as regulated under the Well Construction Standards (Title 15A of the North Carolina Administrative Code, Subchapter 2C) and accepts full responsibility for compliance with these rules Staff Scientist (Agent for NCDEQ State Lead) Signature of Applicant or *Agent Title of Applicant or *Agent Corinne Lally * If signing as Agent, attach authorization agreement stating Printed name of Applicant or *Agent that you have the authority to act as the Agent. If the property is owned by someone other than the applicant, the property owner hereby consents to allow the applicant to construct wells as outlined in this Well Construction Permit application and that it shall be the responsibility of the applicant to ensure that the well(s) conform to the Well Construction Standards (Title 15A of the North Carolina Administrative Code, Subchapter 2C). See attached See attached Signature of Property Owner (if different than Applicant) Printed name of Property Owner (if different than Applicant) DIRECTIONS Please send the completed application to the appropriate Division of Water Resources’ Regional Office: Asheville Regional Office 2090 U.S. Highway 70 Swannanoa, NC 28778 Phone: (828) 296-4500 Fax: (828) 299-7043 Fayetteville Regional Office 225 Green Street, Suite 714 Fayetteville, NC 28301-5094 Phone: (910) 433-3300 Fax: (910) 486-0707 Mooresville Regional Office 610 East Center Avenue Mooresville, NC 28115 Phone: (704) 663-1699 Fax: (704) 663-6040 Raleigh Regional Office 3800 Barrett Drive Raleigh, NC 27609 Phone: (919) 791-4200 Fax: (919) 571-4718 Washington Regional Office 943 Washington Square Mall Washington, NC 27889 Phone: (252) 946-6481 Fax: (252) 975-3716 Wilmington Regional Office 127 Cardinal Drive Extension Wilmington, NC 28405 Phone: (910) 796-7215 Fax: (910) 350-2004 Winston-Salem Regional Office 450 W. Hanes Mill Road Suite 300 Winston-Salem, NC 27105 Phone: (336) 776-9800 Fax: (336) 776-9797 GW-22MR Rev. 3-1-2016 GW-22M (Rev. 5/11) 50 SCALE: 1" = 200'0100150200N500 FT.RADIUS1,000 FT.RADIUSNORTH HAWKINS AVENUENORTH LEE AVENUEWALNUT AVENUEBROAD STREETNORTH WASHINGTON AVENUENORTH JACKSON AVENUESOUTH CAROL STREETCHESTNUT STREETNORTH HAWKINS AVENUEE O YOUNG ROADLEGEND:SITE PROPERTY LINENOTE: ALL LOCATIONS ARE APPROXIMATE* = TWO WATER SUPPLY WELLS LOCATED ON PROPERTYPARCEL LINEWSW-7INACTIVE WATER SUPPLY WELLWell IdentificationWSW-1ACTIVE WATER SUPPLY WELLWell IdentificationSITEWSW-13WSW-2WSW-1WSW-3WSW-12WSW-11WSW-8WSW-16WSW-15WSW-9WSW-10*WSW-6WSW-7WSW-14Project Number:Date:Drn. By:Ckd. By:Figure:Scale:07/07/2021H:\2021\OTHER OFFICES\NORTH CAROLINA\NCDEQ-STATE LEAD\MIDDLEBURG GROCERY\SLC0617401-WSW.DWG, FIG3 MIDDLEBURG GROCERY NORTHWEST CORNER OF US HIGHWAY1/NC HIGHWAY 158 AND NORTH HAWKINS AVENUE MIDDLEBURG, VANCE COUNTY, NORTH CAROLINA NCDEQ INCIDENT #6174SLC0617401DHEFAS SHOWN3WATER SUPPLY WELL LOCATION MAP XX= Proposed permanent monitoring well MONITORING WELL CONSTRUCTION DETAILS FLUSH GRADE MANHOLE CROSS SECTIONAL VIEW (NOT TO SCALE) LOCKABLE WELL CAP PROTECTIVE CASING AND CONCRETE PAD L1 CASING MATERIAL sch 40 PVC CASING DIAMETER 8 inches CASING LENGTH 12 inches PAD DIMENSIONS 2 feet x 2 feet HEIGHT ABOVE GROUND flush mounted WELL CASING MATERIAL sch 40 PVC DIAMETER 2 inches JOINT TYPE flush threaded LENGTH 10 feet L2 BACKFILL AROUND CASING MATERIAL cement grout THICKNESS 5 feet SEAL TYPE OF SEAL bentonite L4 THICKNESS 3 feet FILTER PACK TYPE OF FILTER #2 silica sand DISTANCE ABOVE SCREEN 2 feet TOTAL FILTER PACK LENGTH 12 feet WELL SCREEN L3 SCREEN MATERIAL sch 40 PVC DIAMETER 2 inches LENGTH 20 feet SLOT SIZE 0.010 inches DEPTH TO BOTTOM OF MONITORING WELL 30 feet DEPTH TO BOTTOM OF BOREHOLE 30 feet L1 =0 FT. L2 =10 FT.DIAMETER OF BOREHOLE 6 inches L3 =20 FT. L4 =30 FT. TITLE Monitoring Well Middleburg Grocery 2725 East Millbrook Road NW Corner of US Hwy 1 & N. Hawkins Ave.Suite 121 Middleburg, Vance County Raleigh, North Carolina 27604 North Carolina FILE PREP. BY REV. BY DATE PROJECT NO. CL GA 4/21/2023 SLC0617401 2725 E. Millbrook Road, Suite 121 Raleigh, NC 27604 Telephone 919-871-0999 www.atcgroupservices.com March 29, 2023 Adnan Y Nasher PO Box 187 Middleburg, North Carolina 27556 Subject: Access Agreement for Environmental Assessment Middleburg Grocery Northwest Corner of US Highway 1/NC Highway 158 & North Hawkins Avenue Middleburg, Vance County, North Carolina NCDEQ Incident No. 6174 Dear Mr. Nasher: ATC Associates of North Carolina, P.C. (ATC), on behalf of the North Carolina Department of Environmental Quality (NCDEQ), is conducting an environmental assessment at the Middleburg Grocery site located at the northwest corner of US Highway 1/NC Highway 158 & North Hawkins Avenue in Middleburg, Vance County, North Carolina. As part of the assessment activities, ATC is requesting permission to access your property located at 7075 Broad Street (Parcel ID 0604 02007) in Middleburg, North Carolina for the purpose of conducting an assessment and/or remediation of the groundwater and/or soils. A map showing the location of your property in reference to the site property and the locations of the proposed monitoring wells is included following this letter. You, as the property owner, will not be held responsible or held liable for any damages or expenses for injury to persons or property while ATC is on the premises. Please provide your authorization and approval by signing the attached signature page in the enclosed envelope by April 28, 2023. Acknowledgement of this form is required by NCDEQ. Denial of site access will be forward to NCDEQ for their pursuit of site access. If you have any questions regarding these activities, please do not hesitate to contact Corinne Lally with ATC at corinne.lally@oneatlas.com or (919) 871-0999 or Kristie Oseguera with NCDEQ at kristie.oseguera@ncdenr.gov or (919) 707-8200. Sincerely, ATC Associates of North Carolina, P.C. Corinne Lally . Staff Scientist Enclosures: 1. Signature Page 2. Map of Proposed Monitoring Well Locations Middleburg Grocery ATC Project No. STL0617401 NCDEQ State Lead Program APPENDIX E PHOTO LOG Photo 1: Site status Photo 2: View of MW-1R. Site Photographs Middleburg Grocery- Incident #6174 NW Corner of Hwy 1/NC 158 & N Hawkins Ave Henderson, Vance County, North Carolina 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina Tel: (919) 871-0999 Fax: (737) 207-8261 Photos Taken By: Laura de Sousa Site ID: Incident #6174 ATC Project No.: STL0617401 Photo 3: View of MW-2R. Photo 4: View of MW-4R. Site Photographs Middleburg Grocery- Incident #6174 NW Corner of Hwy 1/NC 158 & N Hawkins Ave Henderson, Vance County, North Carolina 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina Tel: (919) 871-0999 Fax: (737) 207-8261 Photos Taken By: Laura de Sousa Site ID: Incident #6174 ATC Project No.: STL0617401 Photo 5: View of MW-5R. Photo 6: View of MW-11R. Site Photographs Middleburg Grocery- Incident #6174 NW Corner of Hwy 1/NC 158 & N Hawkins Ave Henderson, Vance County, North Carolina 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina Tel: (919) 871-0999 Fax: (737) 207-8261 Photos Taken By: Laura de Sousa Site ID: Incident #6174 ATC Project No.: STL0617401 Photo 7: View of MW-12. Photo 8: View of MW-13. Site Photographs Middleburg Grocery- Incident #6174 NW Corner of Hwy 1/NC 158 & N Hawkins Ave Henderson, Vance County, North Carolina 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina Tel: (919) 871-0999 Fax: (737) 207-8261 Photos Taken By: Laura de Sousa Site ID: Incident #6174 ATC Project No.: STL0617401 Photo 9: View of MW-16. Photo 10: View of MW-17. Site Photographs Middleburg Grocery- Incident #6174 NW Corner of Hwy 1/NC 158 & N Hawkins Ave Henderson, Vance County, North Carolina 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina Tel: (919) 871-0999 Fax: (737) 207-8261 Photos Taken By: Laura de Sousa Site ID: Incident #6174 ATC Project No.: STL0617401 Photo 11: View of MW-18. Site Photographs Middleburg Grocery- Incident #6174 NW Corner of Hwy 1/NC 158 & N Hawkins Ave Henderson, Vance County, North Carolina 2725 E. Millbrook Road, Suite 121 Raleigh, North Carolina Tel: (919) 871-0999 Fax: (737) 207-8261 Photos Taken By: Laura de Sousa Site ID: Incident #6174 ATC Project No.: STL0617401 Middleburg Grocery ATC Project No. STL0617401 NCDEQ State Lead Program APPENDIX F LABORATORY ANALYTICAL RESULTS ANALYTICAL REPORT June 16, 2023 ATC Group Services LLC Sample Delivery Group:L1621526 Samples Received:05/31/2023 Project Number: Description:Middleburg Grocery Report To:Corinne Lally 2725 E. Millbrook Road, Ste 121 Raleigh, NC 27604 Entire Report Reviewed By: June 16, 2023 [Preliminary Report] Heather J Wagner Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 1 of 51 June 16, 2023 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 1 of 51 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SB-1 (13-14) L1621526-01 6 SB-2 (19-20) L1621526-02 9 SB-3 (6-7) L1621526-03 12 SB-4 (13-14) L1621526-04 15 SB-5 (13-14) L1621526-05 18 SB-6 (18-19) L1621526-06 22 Qc: Quality Control Summary 26 Total Solids by Method 2540 G-2011 26 Volatile Petroleum Hydrocarbons by Method MADEPV 28 Volatile Organic Compounds (GC/MS) by Method 8260D 30 TPH by Method MADEPE 35 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 37 Gl: Glossary of Terms 49 Al: Accreditations & Locations 50 Sc: Sample Chain of Custody 51 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 2 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 2 of 51 SAMPLE SUMMARY Collected by Collected date/time Received date/time SB-1 (13-14) L1621526-01 Solid C. Lally 05/25/23 13:45 05/31/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2069920 1 06/01/23 16:09 06/01/23 16:23 CMK Mt. Juliet, TN Volatile Petroleum Hydrocarbons by Method MADEPV WG2075219 1.58 05/25/23 13:45 06/16/23 02:10 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2071407 1.58 05/25/23 13:45 06/04/23 16:41 JAH Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/08/23 00:19 DMG Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/08/23 12:17 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2070369 1 06/04/23 16:06 06/05/23 20:43 KLZ Mt. Juliet, TN Collected by Collected date/time Received date/time SB-2 (19-20) L1621526-02 Solid C. Lally 05/25/23 15:25 05/31/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2069922 1 06/01/23 16:32 06/01/23 16:46 CMK Mt. Juliet, TN Volatile Petroleum Hydrocarbons by Method MADEPV WG2075219 2.06 05/25/23 15:25 06/16/23 02:43 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2071407 2.06 05/25/23 15:25 06/04/23 17:00 JAH Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/08/23 00:41 DMG Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/08/23 11:55 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2070369 1 06/04/23 16:06 06/05/23 18:32 KLZ Mt. Juliet, TN Collected by Collected date/time Received date/time SB-3 (6-7) L1621526-03 Solid C. Lally 05/25/23 15:15 05/31/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2069922 1 06/01/23 16:32 06/01/23 16:46 CMK Mt. Juliet, TN Volatile Petroleum Hydrocarbons by Method MADEPV WG2075219 1.78 05/25/23 15:15 06/16/23 03:16 JHH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2071407 1.78 05/25/23 15:15 06/04/23 17:19 JAH Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/07/23 22:06 DMG Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/08/23 01:03 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2070369 1 06/04/23 16:06 06/05/23 18:54 KLZ Mt. Juliet, TN Collected by Collected date/time Received date/time SB-4 (13-14) L1621526-04 Solid C. Lally 05/26/23 11:15 05/31/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2069922 1 06/01/23 16:32 06/01/23 16:46 CMK Mt. Juliet, TN Volatile Petroleum Hydrocarbons by Method MADEPV WG2073821 1.67 05/26/23 11:15 06/09/23 00:40 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2071407 1.67 05/26/23 11:15 06/04/23 17:38 JAH Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/07/23 22:28 DMG Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/08/23 01:25 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2070369 1 06/04/23 16:06 06/05/23 19:16 KLZ Mt. Juliet, TN Collected by Collected date/time Received date/time SB-5 (13-14) L1621526-05 Solid C. Lally 05/26/23 11:25 05/31/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2069922 1 06/01/23 16:32 06/01/23 16:46 CMK Mt. Juliet, TN Volatile Petroleum Hydrocarbons by Method MADEPV WG2073821 30.2 05/26/23 11:25 06/09/23 03:57 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2071407 12.1 05/26/23 11:25 06/04/23 20:46 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2071836 302 05/26/23 11:25 06/05/23 19:36 DWR Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/07/23 22:50 DMG Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/08/23 01:47 DMG Mt. Juliet, TN TPH by Method MADEPE WG2071822 5 06/02/23 16:00 06/08/23 15:14 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2070370 1 06/05/23 17:27 06/06/23 12:23 AGW Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 3 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 3 of 51 SAMPLE SUMMARY Collected by Collected date/time Received date/time SB-5 (13-14) L1621526-05 Solid C. Lally 05/26/23 11:25 05/31/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2070370 10 06/05/23 17:27 06/09/23 00:43 AMG Mt. Juliet, TN Collected by Collected date/time Received date/time SB-6 (18-19) L1621526-06 Solid C. Lally 05/26/23 12:00 05/31/23 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2069922 1 06/01/23 16:32 06/01/23 16:46 CMK Mt. Juliet, TN Volatile Petroleum Hydrocarbons by Method MADEPV WG2073821 30.8 05/26/23 12:00 06/09/23 04:30 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2071407 12.3 05/26/23 12:00 06/04/23 21:04 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2071836 154 05/26/23 12:00 06/05/23 19:55 DWR Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/07/23 23:12 DMG Mt. Juliet, TN TPH by Method MADEPE WG2071822 1 06/02/23 16:00 06/08/23 02:54 DMG Mt. Juliet, TN TPH by Method MADEPE WG2071822 5 06/02/23 16:00 06/08/23 14:52 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2070370 1 06/05/23 17:27 06/06/23 11:01 AGW Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2070370 5 06/05/23 17:27 06/09/23 00:21 AMG Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 4 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 4 of 51 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Heather J Wagner Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 5 of 51 Jason Romer Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 5 of 51 SAMPLE RESULTS - 01 L1621526 SB-1 (13-14) Collected date/time: 05/25/23 13:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 85.3 1 06/01/2023 16:23 WG2069920 Volatile Petroleum Hydrocarbons by Method MADEPV Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C5-C8 Aliphatics U 3.37 10.1 1.58 06/16/2023 02:10 WG2075219 Unadjusted C9-C12 Aliphatics U 3.37 10.1 1.58 06/16/2023 02:10 WG2075219 Unadjusted C9-C10 Aromatics U 3.37 10.1 1.58 06/16/2023 02:10 WG2075219 Total VPH U 3.37 10.1 1.58 06/16/2023 02:10 WG2075219 (S) 2,5-Dibromotoluene(FID)101 70.0-130 06/16/2023 02:10 WG2075219 (S) 2,5-Dibromotoluene(PID)112 70.0-130 06/16/2023 02:10 WG2075219 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acetone U 0.0739 0.101 1.58 06/04/2023 16:41 WG2071407 Acrylonitrile U 0.00730 0.0254 1.58 06/04/2023 16:41 WG2071407 Benzene U 0.000946 0.00202 1.58 06/04/2023 16:41 WG2071407 Bromobenzene U 0.00182 0.0254 1.58 06/04/2023 16:41 WG2071407 Bromodichloromethane U 0.00147 0.00506 1.58 06/04/2023 16:41 WG2071407 Bromoform U 0.00237 0.0506 1.58 06/04/2023 16:41 WG2071407 Bromomethane U 0.00398 0.0254 1.58 06/04/2023 16:41 WG2071407 n-Butylbenzene U 0.0106 0.0254 1.58 06/04/2023 16:41 WG2071407 sec-Butylbenzene U 0.00583 0.0254 1.58 06/04/2023 16:41 WG2071407 tert-Butylbenzene U J4 0.00395 0.0101 1.58 06/04/2023 16:41 WG2071407 Carbon tetrachloride U J4 0.00182 0.0101 1.58 06/04/2023 16:41 WG2071407 Chlorobenzene U 0.000425 0.00506 1.58 06/04/2023 16:41 WG2071407 Chlorodibromomethane U 0.00124 0.00506 1.58 06/04/2023 16:41 WG2071407 Chloroethane U 0.00345 0.0101 1.58 06/04/2023 16:41 WG2071407 Chloroform U 0.00209 0.00506 1.58 06/04/2023 16:41 WG2071407 Chloromethane U 0.00880 0.0254 1.58 06/04/2023 16:41 WG2071407 2-Chlorotoluene U 0.00176 0.00506 1.58 06/04/2023 16:41 WG2071407 4-Chlorotoluene U 0.000911 0.0101 1.58 06/04/2023 16:41 WG2071407 1,2-Dibromo-3-Chloropropane U 0.00789 0.0506 1.58 06/04/2023 16:41 WG2071407 1,2-Dibromoethane U 0.00131 0.00506 1.58 06/04/2023 16:41 WG2071407 Dibromomethane U 0.00152 0.0101 1.58 06/04/2023 16:41 WG2071407 1,2-Dichlorobenzene U 0.000861 0.0101 1.58 06/04/2023 16:41 WG2071407 1,3-Dichlorobenzene U 0.00121 0.0101 1.58 06/04/2023 16:41 WG2071407 1,4-Dichlorobenzene U 0.00142 0.0101 1.58 06/04/2023 16:41 WG2071407 Dichlorodifluoromethane U 0.00325 0.00506 1.58 06/04/2023 16:41 WG2071407 1,1-Dichloroethane U 0.000994 0.00506 1.58 06/04/2023 16:41 WG2071407 1,2-Dichloroethane U 0.00132 0.00506 1.58 06/04/2023 16:41 WG2071407 1,1-Dichloroethene U J4 0.00123 0.00506 1.58 06/04/2023 16:41 WG2071407 cis-1,2-Dichloroethene U 0.00149 0.00506 1.58 06/04/2023 16:41 WG2071407 trans-1,2-Dichloroethene U 0.00210 0.0101 1.58 06/04/2023 16:41 WG2071407 1,2-Dichloropropane U 0.00287 0.0101 1.58 06/04/2023 16:41 WG2071407 1,1-Dichloropropene U 0.00164 0.00506 1.58 06/04/2023 16:41 WG2071407 1,3-Dichloropropane U 0.00101 0.0101 1.58 06/04/2023 16:41 WG2071407 cis-1,3-Dichloropropene U 0.00154 0.00506 1.58 06/04/2023 16:41 WG2071407 trans-1,3-Dichloropropene U 0.00231 0.0101 1.58 06/04/2023 16:41 WG2071407 2,2-Dichloropropane U 0.00279 0.00506 1.58 06/04/2023 16:41 WG2071407 Di-isopropyl ether U 0.000830 0.00202 1.58 06/04/2023 16:41 WG2071407 Ethylbenzene U 0.00149 0.00506 1.58 06/04/2023 16:41 WG2071407 Hexachloro-1,3-butadiene U 0.0121 0.0506 1.58 06/04/2023 16:41 WG2071407 Isopropylbenzene U 0.000861 0.00506 1.58 06/04/2023 16:41 WG2071407 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 6 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 6 of 51 SAMPLE RESULTS - 01 L1621526 SB-1 (13-14) Collected date/time: 05/25/23 13:45 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time p-Isopropyltoluene U 0.00516 0.0101 1.58 06/04/2023 16:41 WG2071407 2-Butanone (MEK)U 0.128 0.202 1.58 06/04/2023 16:41 WG2071407 Methylene Chloride 0.0144 B J 0.0135 0.0506 1.58 06/04/2023 16:41 WG2071407 4-Methyl-2-pentanone (MIBK)U 0.00461 0.0506 1.58 06/04/2023 16:41 WG2071407 Methyl tert-butyl ether U 0.000709 0.00202 1.58 06/04/2023 16:41 WG2071407 Naphthalene U 0.00988 0.0254 1.58 06/04/2023 16:41 WG2071407 n-Propylbenzene U 0.00192 0.0101 1.58 06/04/2023 16:41 WG2071407 Styrene U 0.000464 0.0254 1.58 06/04/2023 16:41 WG2071407 1,1,1,2-Tetrachloroethane U 0.00192 0.00506 1.58 06/04/2023 16:41 WG2071407 1,1,2,2-Tetrachloroethane U 0.00141 0.00506 1.58 06/04/2023 16:41 WG2071407 1,1,2-Trichlorotrifluoroethane U 0.00152 0.00506 1.58 06/04/2023 16:41 WG2071407 Tetrachloroethene U 0.00182 0.00506 1.58 06/04/2023 16:41 WG2071407 Toluene U 0.00263 0.0101 1.58 06/04/2023 16:41 WG2071407 1,2,3-Trichlorobenzene U 0.0149 0.0254 1.58 06/04/2023 16:41 WG2071407 1,2,4-Trichlorobenzene U 0.00890 0.0254 1.58 06/04/2023 16:41 WG2071407 1,1,1-Trichloroethane U 0.00187 0.00506 1.58 06/04/2023 16:41 WG2071407 1,1,2-Trichloroethane U 0.00121 0.00506 1.58 06/04/2023 16:41 WG2071407 Trichloroethene U 0.00118 0.00202 1.58 06/04/2023 16:41 WG2071407 Trichlorofluoromethane U 0.00168 0.00506 1.58 06/04/2023 16:41 WG2071407 1,2,3-Trichloropropane U 0.00328 0.0254 1.58 06/04/2023 16:41 WG2071407 1,2,4-Trimethylbenzene U 0.00320 0.0101 1.58 06/04/2023 16:41 WG2071407 1,2,3-Trimethylbenzene U 0.00320 0.0101 1.58 06/04/2023 16:41 WG2071407 1,3,5-Trimethylbenzene U 0.00405 0.0101 1.58 06/04/2023 16:41 WG2071407 Vinyl chloride U 0.00234 0.00506 1.58 06/04/2023 16:41 WG2071407 Xylenes, Total U 0.00178 0.0132 1.58 06/04/2023 16:41 WG2071407 (S) Toluene-d8 101 75.0-131 06/04/2023 16:41 WG2071407 (S) 4-Bromofluorobenzene 118 67.0-138 06/04/2023 16:41 WG2071407 (S) 1,2-Dichloroethane-d4 93.1 70.0-130 06/04/2023 16:41 WG2071407 TPH by Method MADEPE Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C9-C18 Aliphatics 3.62 B J 2.54 7.62 1 06/08/2023 12:17 WG2071822 Unadjusted C19-C36 Aliphatics 4.01 B J 2.54 7.62 1 06/08/2023 12:17 WG2071822 Unadjusted C11-C22 Aromatics 3.51 B J 2.54 7.62 1 06/08/2023 00:19 WG2071822 Unadjusted Total Petroleum Hydrocarbons 11.1 B 2.54 7.62 1 06/08/2023 12:17 WG2071822 (S) o-Terphenyl 76.0 40.0-140 06/08/2023 00:19 WG2071822 (S) 1-Chloro-octadecane 74.6 40.0-140 06/08/2023 12:17 WG2071822 (S) 2-Fluorobiphenyl 91.0 40.0-140 06/08/2023 00:19 WG2071822 (S) 2-Bromonaphthalene 100 40.0-140 06/08/2023 00:19 WG2071822 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acenaphthene U 0.00632 0.0390 1 06/05/2023 20:43 WG2070369 Acenaphthylene U 0.00550 0.0390 1 06/05/2023 20:43 WG2070369 Anthracene U 0.00695 0.0390 1 06/05/2023 20:43 WG2070369 Benzidine U 0.0734 1.96 1 06/05/2023 20:43 WG2070369 Benzo(a)anthracene U 0.00688 0.0390 1 06/05/2023 20:43 WG2070369 Benzo(b)fluoranthene U 0.00728 0.0390 1 06/05/2023 20:43 WG2070369 Benzo(k)fluoranthene U 0.00694 0.0390 1 06/05/2023 20:43 WG2070369 Benzo(g,h,i)perylene U 0.00714 0.0390 1 06/05/2023 20:43 WG2070369 Benzo(a)pyrene U 0.00726 0.0390 1 06/05/2023 20:43 WG2070369 Bis(2-chlorethoxy)methane U 0.0117 0.390 1 06/05/2023 20:43 WG2070369 Bis(2-chloroethyl)ether U 0.0129 0.390 1 06/05/2023 20:43 WG2070369 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 7 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 7 of 51 SAMPLE RESULTS - 01 L1621526 SB-1 (13-14) Collected date/time: 05/25/23 13:45 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time 2,2-Oxybis(1-Chloropropane)U 0.0169 0.390 1 06/05/2023 20:43 WG2070369 4-Bromophenyl-phenylether U 0.0137 0.390 1 06/05/2023 20:43 WG2070369 2-Chloronaphthalene U 0.00686 0.0390 1 06/05/2023 20:43 WG2070369 4-Chlorophenyl-phenylether U 0.0136 0.390 1 06/05/2023 20:43 WG2070369 Chrysene U 0.00776 0.0390 1 06/05/2023 20:43 WG2070369 Dibenz(a,h)anthracene U 0.0108 0.0390 1 06/05/2023 20:43 WG2070369 1,2-Dichlorobenzene U 0.0116 0.390 1 06/05/2023 20:43 WG2070369 1,3-Dichlorobenzene U 0.0118 0.390 1 06/05/2023 20:43 WG2070369 1,4-Dichlorobenzene U 0.0116 0.390 1 06/05/2023 20:43 WG2070369 3,3-Dichlorobenzidine U 0.0144 0.390 1 06/05/2023 20:43 WG2070369 2,4-Dinitrotoluene U 0.0112 0.390 1 06/05/2023 20:43 WG2070369 2,6-Dinitrotoluene U 0.0128 0.390 1 06/05/2023 20:43 WG2070369 Fluoranthene U 0.00705 0.0390 1 06/05/2023 20:43 WG2070369 Fluorene U 0.00635 0.0390 1 06/05/2023 20:43 WG2070369 Hexachlorobenzene U 0.0138 0.390 1 06/05/2023 20:43 WG2070369 Hexachloro-1,3-butadiene U 0.0131 0.390 1 06/05/2023 20:43 WG2070369 Hexachlorocyclopentadiene U 0.0205 0.390 1 06/05/2023 20:43 WG2070369 Hexachloroethane U 0.0154 0.390 1 06/05/2023 20:43 WG2070369 Indeno(1,2,3-cd)pyrene U 0.0110 0.0390 1 06/05/2023 20:43 WG2070369 Isophorone U 0.0120 0.390 1 06/05/2023 20:43 WG2070369 Naphthalene U 0.00980 0.0390 1 06/05/2023 20:43 WG2070369 Nitrobenzene U 0.0136 0.390 1 06/05/2023 20:43 WG2070369 n-Nitrosodimethylamine U 0.0579 0.390 1 06/05/2023 20:43 WG2070369 n-Nitrosodiphenylamine U 0.0295 0.390 1 06/05/2023 20:43 WG2070369 n-Nitrosodi-n-propylamine U 0.0130 0.390 1 06/05/2023 20:43 WG2070369 Phenanthrene U 0.00775 0.0390 1 06/05/2023 20:43 WG2070369 Benzylbutyl phthalate U 0.0122 0.390 1 06/05/2023 20:43 WG2070369 Bis(2-ethylhexyl)phthalate U 0.0495 0.390 1 06/05/2023 20:43 WG2070369 Di-n-butyl phthalate U 0.0134 0.390 1 06/05/2023 20:43 WG2070369 Diethyl phthalate U 0.0129 0.390 1 06/05/2023 20:43 WG2070369 Dimethyl phthalate U 0.0828 0.390 1 06/05/2023 20:43 WG2070369 Di-n-octyl phthalate U 0.0264 0.390 1 06/05/2023 20:43 WG2070369 Pyrene U 0.00760 0.0390 1 06/05/2023 20:43 WG2070369 1,2,4-Trichlorobenzene U 0.0122 0.390 1 06/05/2023 20:43 WG2070369 4-Chloro-3-methylphenol U 0.0127 0.390 1 06/05/2023 20:43 WG2070369 2-Chlorophenol U 0.0129 0.390 1 06/05/2023 20:43 WG2070369 2,4-Dichlorophenol U 0.0114 0.390 1 06/05/2023 20:43 WG2070369 2,4-Dimethylphenol U 0.0102 0.390 1 06/05/2023 20:43 WG2070369 4,6-Dinitro-2-methylphenol U 0.0885 0.390 1 06/05/2023 20:43 WG2070369 2,4-Dinitrophenol U 0.0913 0.390 1 06/05/2023 20:43 WG2070369 2-Nitrophenol U 0.0140 0.390 1 06/05/2023 20:43 WG2070369 4-Nitrophenol U 0.0122 0.390 1 06/05/2023 20:43 WG2070369 Pentachlorophenol U 0.0105 0.390 1 06/05/2023 20:43 WG2070369 Phenol U 0.0157 0.390 1 06/05/2023 20:43 WG2070369 2,4,6-Trichlorophenol U 0.0125 0.390 1 06/05/2023 20:43 WG2070369 (S) 2-Fluorophenol 55.2 12.0-120 06/05/2023 20:43 WG2070369 (S) Phenol-d5 54.2 10.0-120 06/05/2023 20:43 WG2070369 (S) Nitrobenzene-d5 50.9 10.0-122 06/05/2023 20:43 WG2070369 (S) 2-Fluorobiphenyl 52.2 15.0-120 06/05/2023 20:43 WG2070369 (S) 2,4,6-Tribromophenol 63.9 10.0-127 06/05/2023 20:43 WG2070369 (S) p-Terphenyl-d14 50.0 10.0-120 06/05/2023 20:43 WG2070369 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 8 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 8 of 51 SAMPLE RESULTS - 02 L1621526 SB-2 (19-20) Collected date/time: 05/25/23 15:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 78.6 1 06/01/2023 16:46 WG2069922 Volatile Petroleum Hydrocarbons by Method MADEPV Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C5-C8 Aliphatics U 4.81 14.5 2.06 06/16/2023 02:43 WG2075219 Unadjusted C9-C12 Aliphatics U 4.81 14.5 2.06 06/16/2023 02:43 WG2075219 Unadjusted C9-C10 Aromatics U 4.81 14.5 2.06 06/16/2023 02:43 WG2075219 Total VPH U 4.81 14.5 2.06 06/16/2023 02:43 WG2075219 (S) 2,5-Dibromotoluene(FID)104 70.0-130 06/16/2023 02:43 WG2075219 (S) 2,5-Dibromotoluene(PID)111 70.0-130 06/16/2023 02:43 WG2075219 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acetone U 0.106 0.145 2.06 06/04/2023 17:00 WG2071407 Acrylonitrile U 0.0104 0.0362 2.06 06/04/2023 17:00 WG2071407 Benzene 0.0147 0.00135 0.00289 2.06 06/04/2023 17:00 WG2071407 Bromobenzene U 0.00260 0.0362 2.06 06/04/2023 17:00 WG2071407 Bromodichloromethane U 0.00209 0.00723 2.06 06/04/2023 17:00 WG2071407 Bromoform U 0.00338 0.0723 2.06 06/04/2023 17:00 WG2071407 Bromomethane U 0.00570 0.0362 2.06 06/04/2023 17:00 WG2071407 n-Butylbenzene U 0.0152 0.0362 2.06 06/04/2023 17:00 WG2071407 sec-Butylbenzene U 0.00832 0.0362 2.06 06/04/2023 17:00 WG2071407 tert-Butylbenzene U J4 0.00564 0.0145 2.06 06/04/2023 17:00 WG2071407 Carbon tetrachloride U J4 0.00260 0.0145 2.06 06/04/2023 17:00 WG2071407 Chlorobenzene U 0.000608 0.00723 2.06 06/04/2023 17:00 WG2071407 Chlorodibromomethane U 0.00177 0.00723 2.06 06/04/2023 17:00 WG2071407 Chloroethane U 0.00491 0.0145 2.06 06/04/2023 17:00 WG2071407 Chloroform U 0.00298 0.00723 2.06 06/04/2023 17:00 WG2071407 Chloromethane U 0.0126 0.0362 2.06 06/04/2023 17:00 WG2071407 2-Chlorotoluene U 0.00250 0.00723 2.06 06/04/2023 17:00 WG2071407 4-Chlorotoluene U 0.00130 0.0145 2.06 06/04/2023 17:00 WG2071407 1,2-Dibromo-3-Chloropropane U 0.0113 0.0723 2.06 06/04/2023 17:00 WG2071407 1,2-Dibromoethane U 0.00187 0.00723 2.06 06/04/2023 17:00 WG2071407 Dibromomethane U 0.00218 0.0145 2.06 06/04/2023 17:00 WG2071407 1,2-Dichlorobenzene U 0.00123 0.0145 2.06 06/04/2023 17:00 WG2071407 1,3-Dichlorobenzene U 0.00174 0.0145 2.06 06/04/2023 17:00 WG2071407 1,4-Dichlorobenzene U 0.00202 0.0145 2.06 06/04/2023 17:00 WG2071407 Dichlorodifluoromethane U 0.00466 0.00723 2.06 06/04/2023 17:00 WG2071407 1,1-Dichloroethane U 0.00142 0.00723 2.06 06/04/2023 17:00 WG2071407 1,2-Dichloroethane U 0.00188 0.00723 2.06 06/04/2023 17:00 WG2071407 1,1-Dichloroethene U J4 0.00175 0.00723 2.06 06/04/2023 17:00 WG2071407 cis-1,2-Dichloroethene U 0.00212 0.00723 2.06 06/04/2023 17:00 WG2071407 trans-1,2-Dichloroethene U 0.00300 0.0145 2.06 06/04/2023 17:00 WG2071407 1,2-Dichloropropane U 0.00411 0.0145 2.06 06/04/2023 17:00 WG2071407 1,1-Dichloropropene U 0.00234 0.00723 2.06 06/04/2023 17:00 WG2071407 1,3-Dichloropropane U 0.00145 0.0145 2.06 06/04/2023 17:00 WG2071407 cis-1,3-Dichloropropene U 0.00219 0.00723 2.06 06/04/2023 17:00 WG2071407 trans-1,3-Dichloropropene U 0.00330 0.0145 2.06 06/04/2023 17:00 WG2071407 2,2-Dichloropropane U 0.00399 0.00723 2.06 06/04/2023 17:00 WG2071407 Di-isopropyl ether U 0.00119 0.00289 2.06 06/04/2023 17:00 WG2071407 Ethylbenzene 0.00911 B 0.00213 0.00723 2.06 06/04/2023 17:00 WG2071407 Hexachloro-1,3-butadiene U 0.0174 0.0723 2.06 06/04/2023 17:00 WG2071407 Isopropylbenzene U 0.00123 0.00723 2.06 06/04/2023 17:00 WG2071407 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 9 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 9 of 51 SAMPLE RESULTS - 02 L1621526 SB-2 (19-20) Collected date/time: 05/25/23 15:25 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time p-Isopropyltoluene U 0.00737 0.0145 2.06 06/04/2023 17:00 WG2071407 2-Butanone (MEK)U 0.184 0.289 2.06 06/04/2023 17:00 WG2071407 Methylene Chloride 0.0212 B J 0.0192 0.0723 2.06 06/04/2023 17:00 WG2071407 4-Methyl-2-pentanone (MIBK)U 0.00660 0.0723 2.06 06/04/2023 17:00 WG2071407 Methyl tert-butyl ether U 0.00101 0.00289 2.06 06/04/2023 17:00 WG2071407 Naphthalene U 0.0142 0.0362 2.06 06/04/2023 17:00 WG2071407 n-Propylbenzene U 0.00275 0.0145 2.06 06/04/2023 17:00 WG2071407 Styrene U 0.000662 0.0362 2.06 06/04/2023 17:00 WG2071407 1,1,1,2-Tetrachloroethane U 0.00274 0.00723 2.06 06/04/2023 17:00 WG2071407 1,1,2,2-Tetrachloroethane U 0.00201 0.00723 2.06 06/04/2023 17:00 WG2071407 1,1,2-Trichlorotrifluoroethane U 0.00218 0.00723 2.06 06/04/2023 17:00 WG2071407 Tetrachloroethene U 0.00260 0.00723 2.06 06/04/2023 17:00 WG2071407 Toluene 0.0823 0.00376 0.0145 2.06 06/04/2023 17:00 WG2071407 1,2,3-Trichlorobenzene U 0.0212 0.0362 2.06 06/04/2023 17:00 WG2071407 1,2,4-Trichlorobenzene U 0.0127 0.0362 2.06 06/04/2023 17:00 WG2071407 1,1,1-Trichloroethane U 0.00267 0.00723 2.06 06/04/2023 17:00 WG2071407 1,1,2-Trichloroethane U 0.00173 0.00723 2.06 06/04/2023 17:00 WG2071407 Trichloroethene U 0.00168 0.00289 2.06 06/04/2023 17:00 WG2071407 Trichlorofluoromethane U 0.00239 0.00723 2.06 06/04/2023 17:00 WG2071407 1,2,3-Trichloropropane U 0.00469 0.0362 2.06 06/04/2023 17:00 WG2071407 1,2,4-Trimethylbenzene U 0.00456 0.0145 2.06 06/04/2023 17:00 WG2071407 1,2,3-Trimethylbenzene U 0.00456 0.0145 2.06 06/04/2023 17:00 WG2071407 1,3,5-Trimethylbenzene U 0.00578 0.0145 2.06 06/04/2023 17:00 WG2071407 Vinyl chloride U 0.00335 0.00723 2.06 06/04/2023 17:00 WG2071407 Xylenes, Total 0.0269 B 0.00254 0.0188 2.06 06/04/2023 17:00 WG2071407 (S) Toluene-d8 101 75.0-131 06/04/2023 17:00 WG2071407 (S) 4-Bromofluorobenzene 105 67.0-138 06/04/2023 17:00 WG2071407 (S) 1,2-Dichloroethane-d4 91.2 70.0-130 06/04/2023 17:00 WG2071407 TPH by Method MADEPE Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C9-C18 Aliphatics 4.06 B J 2.76 8.27 1 06/08/2023 11:55 WG2071822 Unadjusted C19-C36 Aliphatics 4.40 B J 2.76 8.27 1 06/08/2023 11:55 WG2071822 Unadjusted C11-C22 Aromatics 3.15 B J 2.76 8.27 1 06/08/2023 00:41 WG2071822 Unadjusted Total Petroleum Hydrocarbons 11.6 B 2.76 8.27 1 06/08/2023 11:55 WG2071822 (S) o-Terphenyl 72.7 40.0-140 06/08/2023 00:41 WG2071822 (S) 1-Chloro-octadecane 72.7 40.0-140 06/08/2023 11:55 WG2071822 (S) 2-Fluorobiphenyl 89.0 40.0-140 06/08/2023 00:41 WG2071822 (S) 2-Bromonaphthalene 97.3 40.0-140 06/08/2023 00:41 WG2071822 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acenaphthene U 0.00685 0.0423 1 06/05/2023 18:32 WG2070369 Acenaphthylene U 0.00596 0.0423 1 06/05/2023 18:32 WG2070369 Anthracene U 0.00754 0.0423 1 06/05/2023 18:32 WG2070369 Benzidine U 0.0796 2.12 1 06/05/2023 18:32 WG2070369 Benzo(a)anthracene U 0.00746 0.0423 1 06/05/2023 18:32 WG2070369 Benzo(b)fluoranthene U 0.00790 0.0423 1 06/05/2023 18:32 WG2070369 Benzo(k)fluoranthene U 0.00753 0.0423 1 06/05/2023 18:32 WG2070369 Benzo(g,h,i)perylene U 0.00774 0.0423 1 06/05/2023 18:32 WG2070369 Benzo(a)pyrene U 0.00787 0.0423 1 06/05/2023 18:32 WG2070369 Bis(2-chlorethoxy)methane U 0.0127 0.423 1 06/05/2023 18:32 WG2070369 Bis(2-chloroethyl)ether U 0.0140 0.423 1 06/05/2023 18:32 WG2070369 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 10 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 10 of 51 SAMPLE RESULTS - 02 L1621526 SB-2 (19-20) Collected date/time: 05/25/23 15:25 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time 2,2-Oxybis(1-Chloropropane)U 0.0183 0.423 1 06/05/2023 18:32 WG2070369 4-Bromophenyl-phenylether U 0.0149 0.423 1 06/05/2023 18:32 WG2070369 2-Chloronaphthalene U 0.00744 0.0423 1 06/05/2023 18:32 WG2070369 4-Chlorophenyl-phenylether U 0.0148 0.423 1 06/05/2023 18:32 WG2070369 Chrysene U 0.00842 0.0423 1 06/05/2023 18:32 WG2070369 Dibenz(a,h)anthracene U 0.0117 0.0423 1 06/05/2023 18:32 WG2070369 1,2-Dichlorobenzene U 0.0126 0.423 1 06/05/2023 18:32 WG2070369 1,3-Dichlorobenzene U 0.0128 0.423 1 06/05/2023 18:32 WG2070369 1,4-Dichlorobenzene U 0.0126 0.423 1 06/05/2023 18:32 WG2070369 3,3-Dichlorobenzidine U 0.0156 0.423 1 06/05/2023 18:32 WG2070369 2,4-Dinitrotoluene U 0.0121 0.423 1 06/05/2023 18:32 WG2070369 2,6-Dinitrotoluene U 0.0139 0.423 1 06/05/2023 18:32 WG2070369 Fluoranthene U 0.00764 0.0423 1 06/05/2023 18:32 WG2070369 Fluorene U 0.00689 0.0423 1 06/05/2023 18:32 WG2070369 Hexachlorobenzene U 0.0150 0.423 1 06/05/2023 18:32 WG2070369 Hexachloro-1,3-butadiene U 0.0142 0.423 1 06/05/2023 18:32 WG2070369 Hexachlorocyclopentadiene U 0.0223 0.423 1 06/05/2023 18:32 WG2070369 Hexachloroethane U 0.0167 0.423 1 06/05/2023 18:32 WG2070369 Indeno(1,2,3-cd)pyrene U 0.0120 0.0423 1 06/05/2023 18:32 WG2070369 Isophorone U 0.0130 0.423 1 06/05/2023 18:32 WG2070369 Naphthalene 0.0117 J 0.0106 0.0423 1 06/05/2023 18:32 WG2070369 Nitrobenzene U 0.0148 0.423 1 06/05/2023 18:32 WG2070369 n-Nitrosodimethylamine U 0.0628 0.423 1 06/05/2023 18:32 WG2070369 n-Nitrosodiphenylamine U 0.0320 0.423 1 06/05/2023 18:32 WG2070369 n-Nitrosodi-n-propylamine U 0.0141 0.423 1 06/05/2023 18:32 WG2070369 Phenanthrene U 0.00841 0.0423 1 06/05/2023 18:32 WG2070369 Benzylbutyl phthalate U 0.0132 0.423 1 06/05/2023 18:32 WG2070369 Bis(2-ethylhexyl)phthalate U 0.0537 0.423 1 06/05/2023 18:32 WG2070369 Di-n-butyl phthalate U 0.0145 0.423 1 06/05/2023 18:32 WG2070369 Diethyl phthalate U 0.0140 0.423 1 06/05/2023 18:32 WG2070369 Dimethyl phthalate U 0.0898 0.423 1 06/05/2023 18:32 WG2070369 Di-n-octyl phthalate U 0.0286 0.423 1 06/05/2023 18:32 WG2070369 Pyrene U 0.00824 0.0423 1 06/05/2023 18:32 WG2070369 1,2,4-Trichlorobenzene U 0.0132 0.423 1 06/05/2023 18:32 WG2070369 4-Chloro-3-methylphenol U 0.0137 0.423 1 06/05/2023 18:32 WG2070369 2-Chlorophenol U 0.0140 0.423 1 06/05/2023 18:32 WG2070369 2,4-Dichlorophenol U 0.0123 0.423 1 06/05/2023 18:32 WG2070369 2,4-Dimethylphenol U 0.0111 0.423 1 06/05/2023 18:32 WG2070369 4,6-Dinitro-2-methylphenol U 0.0960 0.423 1 06/05/2023 18:32 WG2070369 2,4-Dinitrophenol U 0.0991 0.423 1 06/05/2023 18:32 WG2070369 2-Nitrophenol U 0.0151 0.423 1 06/05/2023 18:32 WG2070369 4-Nitrophenol U 0.0132 0.423 1 06/05/2023 18:32 WG2070369 Pentachlorophenol U 0.0114 0.423 1 06/05/2023 18:32 WG2070369 Phenol U 0.0170 0.423 1 06/05/2023 18:32 WG2070369 2,4,6-Trichlorophenol U 0.0136 0.423 1 06/05/2023 18:32 WG2070369 (S) 2-Fluorophenol 61.6 12.0-120 06/05/2023 18:32 WG2070369 (S) Phenol-d5 58.5 10.0-120 06/05/2023 18:32 WG2070369 (S) Nitrobenzene-d5 56.4 10.0-122 06/05/2023 18:32 WG2070369 (S) 2-Fluorobiphenyl 58.8 15.0-120 06/05/2023 18:32 WG2070369 (S) 2,4,6-Tribromophenol 71.5 10.0-127 06/05/2023 18:32 WG2070369 (S) p-Terphenyl-d14 57.6 10.0-120 06/05/2023 18:32 WG2070369 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 11 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 11 of 51 SAMPLE RESULTS - 03 L1621526 SB-3 (6-7) Collected date/time: 05/25/23 15:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 79.0 1 06/01/2023 16:46 WG2069922 Volatile Petroleum Hydrocarbons by Method MADEPV Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C5-C8 Aliphatics U 4.19 12.6 1.78 06/16/2023 03:16 WG2075219 Unadjusted C9-C12 Aliphatics U 4.19 12.6 1.78 06/16/2023 03:16 WG2075219 Unadjusted C9-C10 Aromatics U 4.19 12.6 1.78 06/16/2023 03:16 WG2075219 Total VPH U 4.19 12.6 1.78 06/16/2023 03:16 WG2075219 (S) 2,5-Dibromotoluene(FID)101 70.0-130 06/16/2023 03:16 WG2075219 (S) 2,5-Dibromotoluene(PID)109 70.0-130 06/16/2023 03:16 WG2075219 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acetone U 0.0920 0.126 1.78 06/04/2023 17:19 WG2071407 Acrylonitrile U 0.00910 0.0316 1.78 06/04/2023 17:19 WG2071407 Benzene U 0.00118 0.00252 1.78 06/04/2023 17:19 WG2071407 Bromobenzene U 0.00226 0.0316 1.78 06/04/2023 17:19 WG2071407 Bromodichloromethane U 0.00183 0.00630 1.78 06/04/2023 17:19 WG2071407 Bromoform U 0.00294 0.0630 1.78 06/04/2023 17:19 WG2071407 Bromomethane U 0.00497 0.0316 1.78 06/04/2023 17:19 WG2071407 n-Butylbenzene U 0.0132 0.0316 1.78 06/04/2023 17:19 WG2071407 sec-Butylbenzene U 0.00726 0.0316 1.78 06/04/2023 17:19 WG2071407 tert-Butylbenzene U J4 0.00491 0.0126 1.78 06/04/2023 17:19 WG2071407 Carbon tetrachloride U J4 0.00226 0.0126 1.78 06/04/2023 17:19 WG2071407 Chlorobenzene U 0.000529 0.00630 1.78 06/04/2023 17:19 WG2071407 Chlorodibromomethane U 0.00154 0.00630 1.78 06/04/2023 17:19 WG2071407 Chloroethane U 0.00429 0.0126 1.78 06/04/2023 17:19 WG2071407 Chloroform U 0.00259 0.00630 1.78 06/04/2023 17:19 WG2071407 Chloromethane U 0.0110 0.0316 1.78 06/04/2023 17:19 WG2071407 2-Chlorotoluene U 0.00218 0.00630 1.78 06/04/2023 17:19 WG2071407 4-Chlorotoluene U 0.00113 0.0126 1.78 06/04/2023 17:19 WG2071407 1,2-Dibromo-3-Chloropropane U 0.00982 0.0630 1.78 06/04/2023 17:19 WG2071407 1,2-Dibromoethane U 0.00163 0.00630 1.78 06/04/2023 17:19 WG2071407 Dibromomethane U 0.00190 0.0126 1.78 06/04/2023 17:19 WG2071407 1,2-Dichlorobenzene U 0.00107 0.0126 1.78 06/04/2023 17:19 WG2071407 1,3-Dichlorobenzene U 0.00151 0.0126 1.78 06/04/2023 17:19 WG2071407 1,4-Dichlorobenzene U 0.00177 0.0126 1.78 06/04/2023 17:19 WG2071407 Dichlorodifluoromethane U 0.00406 0.00630 1.78 06/04/2023 17:19 WG2071407 1,1-Dichloroethane U 0.00124 0.00630 1.78 06/04/2023 17:19 WG2071407 1,2-Dichloroethane U 0.00164 0.00630 1.78 06/04/2023 17:19 WG2071407 1,1-Dichloroethene U J4 0.00153 0.00630 1.78 06/04/2023 17:19 WG2071407 cis-1,2-Dichloroethene U 0.00185 0.00630 1.78 06/04/2023 17:19 WG2071407 trans-1,2-Dichloroethene U 0.00262 0.0126 1.78 06/04/2023 17:19 WG2071407 1,2-Dichloropropane U 0.00358 0.0126 1.78 06/04/2023 17:19 WG2071407 1,1-Dichloropropene U 0.00204 0.00630 1.78 06/04/2023 17:19 WG2071407 1,3-Dichloropropane U 0.00126 0.0126 1.78 06/04/2023 17:19 WG2071407 cis-1,3-Dichloropropene U 0.00191 0.00630 1.78 06/04/2023 17:19 WG2071407 trans-1,3-Dichloropropene U 0.00287 0.0126 1.78 06/04/2023 17:19 WG2071407 2,2-Dichloropropane U 0.00348 0.00630 1.78 06/04/2023 17:19 WG2071407 Di-isopropyl ether U 0.00103 0.00252 1.78 06/04/2023 17:19 WG2071407 Ethylbenzene U 0.00185 0.00630 1.78 06/04/2023 17:19 WG2071407 Hexachloro-1,3-butadiene U 0.0151 0.0630 1.78 06/04/2023 17:19 WG2071407 Isopropylbenzene U 0.00107 0.00630 1.78 06/04/2023 17:19 WG2071407 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 12 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 12 of 51 SAMPLE RESULTS - 03 L1621526 SB-3 (6-7) Collected date/time: 05/25/23 15:15 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time p-Isopropyltoluene U 0.00643 0.0126 1.78 06/04/2023 17:19 WG2071407 2-Butanone (MEK)U 0.160 0.252 1.78 06/04/2023 17:19 WG2071407 Methylene Chloride 0.0171 B J 0.0167 0.0630 1.78 06/04/2023 17:19 WG2071407 4-Methyl-2-pentanone (MIBK)U 0.00575 0.0630 1.78 06/04/2023 17:19 WG2071407 Methyl tert-butyl ether U 0.000882 0.00252 1.78 06/04/2023 17:19 WG2071407 Naphthalene U 0.0123 0.0316 1.78 06/04/2023 17:19 WG2071407 n-Propylbenzene U 0.00239 0.0126 1.78 06/04/2023 17:19 WG2071407 Styrene U 0.000577 0.0316 1.78 06/04/2023 17:19 WG2071407 1,1,1,2-Tetrachloroethane U 0.00239 0.00630 1.78 06/04/2023 17:19 WG2071407 1,1,2,2-Tetrachloroethane U 0.00175 0.00630 1.78 06/04/2023 17:19 WG2071407 1,1,2-Trichlorotrifluoroethane U 0.00190 0.00630 1.78 06/04/2023 17:19 WG2071407 Tetrachloroethene U 0.00225 0.00630 1.78 06/04/2023 17:19 WG2071407 Toluene U 0.00327 0.0126 1.78 06/04/2023 17:19 WG2071407 1,2,3-Trichlorobenzene U 0.0184 0.0316 1.78 06/04/2023 17:19 WG2071407 1,2,4-Trichlorobenzene U 0.0111 0.0316 1.78 06/04/2023 17:19 WG2071407 1,1,1-Trichloroethane U 0.00232 0.00630 1.78 06/04/2023 17:19 WG2071407 1,1,2-Trichloroethane U 0.00150 0.00630 1.78 06/04/2023 17:19 WG2071407 Trichloroethene U 0.00147 0.00252 1.78 06/04/2023 17:19 WG2071407 Trichlorofluoromethane U 0.00208 0.00630 1.78 06/04/2023 17:19 WG2071407 1,2,3-Trichloropropane U 0.00408 0.0316 1.78 06/04/2023 17:19 WG2071407 1,2,4-Trimethylbenzene U 0.00398 0.0126 1.78 06/04/2023 17:19 WG2071407 1,2,3-Trimethylbenzene U 0.00398 0.0126 1.78 06/04/2023 17:19 WG2071407 1,3,5-Trimethylbenzene U 0.00504 0.0126 1.78 06/04/2023 17:19 WG2071407 Vinyl chloride U 0.00292 0.00630 1.78 06/04/2023 17:19 WG2071407 Xylenes, Total U 0.00222 0.0164 1.78 06/04/2023 17:19 WG2071407 (S) Toluene-d8 101 75.0-131 06/04/2023 17:19 WG2071407 (S) 4-Bromofluorobenzene 117 67.0-138 06/04/2023 17:19 WG2071407 (S) 1,2-Dichloroethane-d4 94.4 70.0-130 06/04/2023 17:19 WG2071407 TPH by Method MADEPE Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C9-C18 Aliphatics 4.86 B J 2.75 8.23 1 06/07/2023 22:06 WG2071822 Unadjusted C19-C36 Aliphatics 29.5 B 2.75 8.23 1 06/07/2023 22:06 WG2071822 Unadjusted C11-C22 Aromatics 9.01 B 2.75 8.23 1 06/08/2023 01:03 WG2071822 Unadjusted Total Petroleum Hydrocarbons 43.4 B 2.75 8.23 1 06/08/2023 01:03 WG2071822 (S) o-Terphenyl 76.7 40.0-140 06/08/2023 01:03 WG2071822 (S) 1-Chloro-octadecane 78.6 40.0-140 06/07/2023 22:06 WG2071822 (S) 2-Fluorobiphenyl 88.1 40.0-140 06/08/2023 01:03 WG2071822 (S) 2-Bromonaphthalene 96.6 40.0-140 06/08/2023 01:03 WG2071822 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acenaphthene U 0.00682 0.0422 1 06/05/2023 18:54 WG2070369 Acenaphthylene U 0.00594 0.0422 1 06/05/2023 18:54 WG2070369 Anthracene U 0.00751 0.0422 1 06/05/2023 18:54 WG2070369 Benzidine U 0.0793 2.11 1 06/05/2023 18:54 WG2070369 Benzo(a)anthracene U 0.00743 0.0422 1 06/05/2023 18:54 WG2070369 Benzo(b)fluoranthene U 0.00786 0.0422 1 06/05/2023 18:54 WG2070369 Benzo(k)fluoranthene U 0.00749 0.0422 1 06/05/2023 18:54 WG2070369 Benzo(g,h,i)perylene U 0.00771 0.0422 1 06/05/2023 18:54 WG2070369 Benzo(a)pyrene U 0.00784 0.0422 1 06/05/2023 18:54 WG2070369 Bis(2-chlorethoxy)methane U 0.0127 0.422 1 06/05/2023 18:54 WG2070369 Bis(2-chloroethyl)ether U 0.0139 0.422 1 06/05/2023 18:54 WG2070369 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 13 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 13 of 51 SAMPLE RESULTS - 03 L1621526 SB-3 (6-7) Collected date/time: 05/25/23 15:15 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time 2,2-Oxybis(1-Chloropropane)U 0.0182 0.422 1 06/05/2023 18:54 WG2070369 4-Bromophenyl-phenylether U 0.0148 0.422 1 06/05/2023 18:54 WG2070369 2-Chloronaphthalene U 0.00741 0.0422 1 06/05/2023 18:54 WG2070369 4-Chlorophenyl-phenylether U 0.0147 0.422 1 06/05/2023 18:54 WG2070369 Chrysene U 0.00838 0.0422 1 06/05/2023 18:54 WG2070369 Dibenz(a,h)anthracene U 0.0117 0.0422 1 06/05/2023 18:54 WG2070369 1,2-Dichlorobenzene U 0.0125 0.422 1 06/05/2023 18:54 WG2070369 1,3-Dichlorobenzene U 0.0128 0.422 1 06/05/2023 18:54 WG2070369 1,4-Dichlorobenzene U 0.0125 0.422 1 06/05/2023 18:54 WG2070369 3,3-Dichlorobenzidine U 0.0156 0.422 1 06/05/2023 18:54 WG2070369 2,4-Dinitrotoluene U 0.0121 0.422 1 06/05/2023 18:54 WG2070369 2,6-Dinitrotoluene U 0.0138 0.422 1 06/05/2023 18:54 WG2070369 Fluoranthene U 0.00761 0.0422 1 06/05/2023 18:54 WG2070369 Fluorene U 0.00686 0.0422 1 06/05/2023 18:54 WG2070369 Hexachlorobenzene U 0.0149 0.422 1 06/05/2023 18:54 WG2070369 Hexachloro-1,3-butadiene U 0.0142 0.422 1 06/05/2023 18:54 WG2070369 Hexachlorocyclopentadiene U 0.0222 0.422 1 06/05/2023 18:54 WG2070369 Hexachloroethane U 0.0166 0.422 1 06/05/2023 18:54 WG2070369 Indeno(1,2,3-cd)pyrene U 0.0119 0.0422 1 06/05/2023 18:54 WG2070369 Isophorone U 0.0129 0.422 1 06/05/2023 18:54 WG2070369 Naphthalene 0.0252 J 0.0106 0.0422 1 06/05/2023 18:54 WG2070369 Nitrobenzene U 0.0147 0.422 1 06/05/2023 18:54 WG2070369 n-Nitrosodimethylamine U 0.0625 0.422 1 06/05/2023 18:54 WG2070369 n-Nitrosodiphenylamine U 0.0319 0.422 1 06/05/2023 18:54 WG2070369 n-Nitrosodi-n-propylamine U 0.0141 0.422 1 06/05/2023 18:54 WG2070369 Phenanthrene U 0.00837 0.0422 1 06/05/2023 18:54 WG2070369 Benzylbutyl phthalate U 0.0132 0.422 1 06/05/2023 18:54 WG2070369 Bis(2-ethylhexyl)phthalate U 0.0534 0.422 1 06/05/2023 18:54 WG2070369 Di-n-butyl phthalate U 0.0144 0.422 1 06/05/2023 18:54 WG2070369 Diethyl phthalate U 0.0139 0.422 1 06/05/2023 18:54 WG2070369 Dimethyl phthalate U 0.0894 0.422 1 06/05/2023 18:54 WG2070369 Di-n-octyl phthalate U 0.0285 0.422 1 06/05/2023 18:54 WG2070369 Pyrene U 0.00820 0.0422 1 06/05/2023 18:54 WG2070369 1,2,4-Trichlorobenzene U 0.0132 0.422 1 06/05/2023 18:54 WG2070369 4-Chloro-3-methylphenol U 0.0137 0.422 1 06/05/2023 18:54 WG2070369 2-Chlorophenol U 0.0139 0.422 1 06/05/2023 18:54 WG2070369 2,4-Dichlorophenol U 0.0123 0.422 1 06/05/2023 18:54 WG2070369 2,4-Dimethylphenol U 0.0110 0.422 1 06/05/2023 18:54 WG2070369 4,6-Dinitro-2-methylphenol U 0.0956 0.422 1 06/05/2023 18:54 WG2070369 2,4-Dinitrophenol U 0.0986 0.422 1 06/05/2023 18:54 WG2070369 2-Nitrophenol U 0.0151 0.422 1 06/05/2023 18:54 WG2070369 4-Nitrophenol U 0.0132 0.422 1 06/05/2023 18:54 WG2070369 Pentachlorophenol U 0.0113 0.422 1 06/05/2023 18:54 WG2070369 Phenol U 0.0170 0.422 1 06/05/2023 18:54 WG2070369 2,4,6-Trichlorophenol U 0.0135 0.422 1 06/05/2023 18:54 WG2070369 (S) 2-Fluorophenol 59.8 12.0-120 06/05/2023 18:54 WG2070369 (S) Phenol-d5 56.7 10.0-120 06/05/2023 18:54 WG2070369 (S) Nitrobenzene-d5 57.8 10.0-122 06/05/2023 18:54 WG2070369 (S) 2-Fluorobiphenyl 56.2 15.0-120 06/05/2023 18:54 WG2070369 (S) 2,4,6-Tribromophenol 62.4 10.0-127 06/05/2023 18:54 WG2070369 (S) p-Terphenyl-d14 54.3 10.0-120 06/05/2023 18:54 WG2070369 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 14 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 14 of 51 SAMPLE RESULTS - 04 L1621526 SB-4 (13-14) Collected date/time: 05/26/23 11:15 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 75.5 1 06/01/2023 16:46 WG2069922 Volatile Petroleum Hydrocarbons by Method MADEPV Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C5-C8 Aliphatics U 4.23 12.7 1.67 06/09/2023 00:40 WG2073821 Unadjusted C9-C12 Aliphatics U 4.23 12.7 1.67 06/09/2023 00:40 WG2073821 Unadjusted C9-C10 Aromatics U 4.23 12.7 1.67 06/09/2023 00:40 WG2073821 Total VPH U 4.23 12.7 1.67 06/09/2023 00:40 WG2073821 (S) 2,5-Dibromotoluene(FID)76.3 70.0-130 06/09/2023 00:40 WG2073821 (S) 2,5-Dibromotoluene(PID)87.4 70.0-130 06/09/2023 00:40 WG2073821 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acetone U 0.0927 0.127 1.67 06/04/2023 17:38 WG2071407 Acrylonitrile U 0.00917 0.0318 1.67 06/04/2023 17:38 WG2071407 Benzene U 0.00119 0.00254 1.67 06/04/2023 17:38 WG2071407 Bromobenzene U 0.00228 0.0318 1.67 06/04/2023 17:38 WG2071407 Bromodichloromethane U 0.00184 0.00635 1.67 06/04/2023 17:38 WG2071407 Bromoform U 0.00296 0.0635 1.67 06/04/2023 17:38 WG2071407 Bromomethane U 0.00500 0.0318 1.67 06/04/2023 17:38 WG2071407 n-Butylbenzene U 0.0133 0.0318 1.67 06/04/2023 17:38 WG2071407 sec-Butylbenzene U 0.00731 0.0318 1.67 06/04/2023 17:38 WG2071407 tert-Butylbenzene U J4 0.00496 0.0127 1.67 06/04/2023 17:38 WG2071407 Carbon tetrachloride U J4 0.00228 0.0127 1.67 06/04/2023 17:38 WG2071407 Chlorobenzene U 0.000534 0.00635 1.67 06/04/2023 17:38 WG2071407 Chlorodibromomethane U 0.00155 0.00635 1.67 06/04/2023 17:38 WG2071407 Chloroethane U 0.00432 0.0127 1.67 06/04/2023 17:38 WG2071407 Chloroform U 0.00261 0.00635 1.67 06/04/2023 17:38 WG2071407 Chloromethane U 0.0110 0.0318 1.67 06/04/2023 17:38 WG2071407 2-Chlorotoluene U 0.00219 0.00635 1.67 06/04/2023 17:38 WG2071407 4-Chlorotoluene U 0.00114 0.0127 1.67 06/04/2023 17:38 WG2071407 1,2-Dibromo-3-Chloropropane U 0.00990 0.0635 1.67 06/04/2023 17:38 WG2071407 1,2-Dibromoethane U 0.00164 0.00635 1.67 06/04/2023 17:38 WG2071407 Dibromomethane U 0.00190 0.0127 1.67 06/04/2023 17:38 WG2071407 1,2-Dichlorobenzene U 0.00108 0.0127 1.67 06/04/2023 17:38 WG2071407 1,3-Dichlorobenzene U 0.00152 0.0127 1.67 06/04/2023 17:38 WG2071407 1,4-Dichlorobenzene U 0.00178 0.0127 1.67 06/04/2023 17:38 WG2071407 Dichlorodifluoromethane U 0.00409 0.00635 1.67 06/04/2023 17:38 WG2071407 1,1-Dichloroethane U 0.00125 0.00635 1.67 06/04/2023 17:38 WG2071407 1,2-Dichloroethane U 0.00164 0.00635 1.67 06/04/2023 17:38 WG2071407 1,1-Dichloroethene U J4 0.00154 0.00635 1.67 06/04/2023 17:38 WG2071407 cis-1,2-Dichloroethene U 0.00187 0.00635 1.67 06/04/2023 17:38 WG2071407 trans-1,2-Dichloroethene U 0.00265 0.0127 1.67 06/04/2023 17:38 WG2071407 1,2-Dichloropropane U 0.00360 0.0127 1.67 06/04/2023 17:38 WG2071407 1,1-Dichloropropene U 0.00205 0.00635 1.67 06/04/2023 17:38 WG2071407 1,3-Dichloropropane U 0.00127 0.0127 1.67 06/04/2023 17:38 WG2071407 cis-1,3-Dichloropropene U 0.00192 0.00635 1.67 06/04/2023 17:38 WG2071407 trans-1,3-Dichloropropene U 0.00289 0.0127 1.67 06/04/2023 17:38 WG2071407 2,2-Dichloropropane U 0.00350 0.00635 1.67 06/04/2023 17:38 WG2071407 Di-isopropyl ether U 0.00104 0.00254 1.67 06/04/2023 17:38 WG2071407 Ethylbenzene U 0.00187 0.00635 1.67 06/04/2023 17:38 WG2071407 Hexachloro-1,3-butadiene U 0.0152 0.0635 1.67 06/04/2023 17:38 WG2071407 Isopropylbenzene U 0.00108 0.00635 1.67 06/04/2023 17:38 WG2071407 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 15 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 15 of 51 SAMPLE RESULTS - 04 L1621526 SB-4 (13-14) Collected date/time: 05/26/23 11:15 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time p-Isopropyltoluene U 0.00648 0.0127 1.67 06/04/2023 17:38 WG2071407 2-Butanone (MEK)U 0.161 0.254 1.67 06/04/2023 17:38 WG2071407 Methylene Chloride 0.0187 B J 0.0169 0.0635 1.67 06/04/2023 17:38 WG2071407 4-Methyl-2-pentanone (MIBK)U 0.00579 0.0635 1.67 06/04/2023 17:38 WG2071407 Methyl tert-butyl ether U 0.000888 0.00254 1.67 06/04/2023 17:38 WG2071407 Naphthalene U 0.0124 0.0318 1.67 06/04/2023 17:38 WG2071407 n-Propylbenzene U 0.00242 0.0127 1.67 06/04/2023 17:38 WG2071407 Styrene U 0.000581 0.0318 1.67 06/04/2023 17:38 WG2071407 1,1,1,2-Tetrachloroethane U 0.00240 0.00635 1.67 06/04/2023 17:38 WG2071407 1,1,2,2-Tetrachloroethane U 0.00176 0.00635 1.67 06/04/2023 17:38 WG2071407 1,1,2-Trichlorotrifluoroethane U 0.00192 0.00635 1.67 06/04/2023 17:38 WG2071407 Tetrachloroethene U 0.00228 0.00635 1.67 06/04/2023 17:38 WG2071407 Toluene U 0.00330 0.0127 1.67 06/04/2023 17:38 WG2071407 1,2,3-Trichlorobenzene U 0.0185 0.0318 1.67 06/04/2023 17:38 WG2071407 1,2,4-Trichlorobenzene U 0.0112 0.0318 1.67 06/04/2023 17:38 WG2071407 1,1,1-Trichloroethane U 0.00234 0.00635 1.67 06/04/2023 17:38 WG2071407 1,1,2-Trichloroethane U 0.00152 0.00635 1.67 06/04/2023 17:38 WG2071407 Trichloroethene U 0.00148 0.00254 1.67 06/04/2023 17:38 WG2071407 Trichlorofluoromethane U 0.00210 0.00635 1.67 06/04/2023 17:38 WG2071407 1,2,3-Trichloropropane U 0.00412 0.0318 1.67 06/04/2023 17:38 WG2071407 1,2,4-Trimethylbenzene U 0.00401 0.0127 1.67 06/04/2023 17:38 WG2071407 1,2,3-Trimethylbenzene U 0.00401 0.0127 1.67 06/04/2023 17:38 WG2071407 1,3,5-Trimethylbenzene U 0.00508 0.0127 1.67 06/04/2023 17:38 WG2071407 Vinyl chloride U 0.00295 0.00635 1.67 06/04/2023 17:38 WG2071407 Xylenes, Total U 0.00223 0.0166 1.67 06/04/2023 17:38 WG2071407 (S) Toluene-d8 99.7 75.0-131 06/04/2023 17:38 WG2071407 (S) 4-Bromofluorobenzene 102 67.0-138 06/04/2023 17:38 WG2071407 (S) 1,2-Dichloroethane-d4 88.0 70.0-130 06/04/2023 17:38 WG2071407 TPH by Method MADEPE Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C9-C18 Aliphatics 4.23 B J 2.88 8.61 1 06/07/2023 22:28 WG2071822 Unadjusted C19-C36 Aliphatics 6.40 B J 2.88 8.61 1 06/07/2023 22:28 WG2071822 Unadjusted C11-C22 Aromatics 3.79 B J 2.88 8.61 1 06/08/2023 01:25 WG2071822 Unadjusted Total Petroleum Hydrocarbons 14.4 B 2.88 8.61 1 06/08/2023 01:25 WG2071822 (S) o-Terphenyl 76.0 40.0-140 06/08/2023 01:25 WG2071822 (S) 1-Chloro-octadecane 76.7 40.0-140 06/07/2023 22:28 WG2071822 (S) 2-Fluorobiphenyl 95.2 40.0-140 06/08/2023 01:25 WG2071822 (S) 2-Bromonaphthalene 103 40.0-140 06/08/2023 01:25 WG2071822 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acenaphthene U 0.00714 0.0441 1 06/05/2023 19:16 WG2070369 Acenaphthylene U 0.00621 0.0441 1 06/05/2023 19:16 WG2070369 Anthracene U 0.00786 0.0441 1 06/05/2023 19:16 WG2070369 Benzidine U 0.0830 2.21 1 06/05/2023 19:16 WG2070369 Benzo(a)anthracene U 0.00778 0.0441 1 06/05/2023 19:16 WG2070369 Benzo(b)fluoranthene U 0.00823 0.0441 1 06/05/2023 19:16 WG2070369 Benzo(k)fluoranthene U 0.00784 0.0441 1 06/05/2023 19:16 WG2070369 Benzo(g,h,i)perylene U 0.00807 0.0441 1 06/05/2023 19:16 WG2070369 Benzo(a)pyrene U 0.00820 0.0441 1 06/05/2023 19:16 WG2070369 Bis(2-chlorethoxy)methane U 0.0133 0.441 1 06/05/2023 19:16 WG2070369 Bis(2-chloroethyl)ether U 0.0146 0.441 1 06/05/2023 19:16 WG2070369 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 16 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 16 of 51 SAMPLE RESULTS - 04 L1621526 SB-4 (13-14) Collected date/time: 05/26/23 11:15 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time 2,2-Oxybis(1-Chloropropane)U 0.0191 0.441 1 06/05/2023 19:16 WG2070369 4-Bromophenyl-phenylether U 0.0155 0.441 1 06/05/2023 19:16 WG2070369 2-Chloronaphthalene U 0.00775 0.0441 1 06/05/2023 19:16 WG2070369 4-Chlorophenyl-phenylether U 0.0154 0.441 1 06/05/2023 19:16 WG2070369 Chrysene U 0.00877 0.0441 1 06/05/2023 19:16 WG2070369 Dibenz(a,h)anthracene U 0.0122 0.0441 1 06/05/2023 19:16 WG2070369 1,2-Dichlorobenzene U 0.0131 0.441 1 06/05/2023 19:16 WG2070369 1,3-Dichlorobenzene U 0.0134 0.441 1 06/05/2023 19:16 WG2070369 1,4-Dichlorobenzene U 0.0131 0.441 1 06/05/2023 19:16 WG2070369 3,3-Dichlorobenzidine U 0.0163 0.441 1 06/05/2023 19:16 WG2070369 2,4-Dinitrotoluene U 0.0127 0.441 1 06/05/2023 19:16 WG2070369 2,6-Dinitrotoluene U 0.0144 0.441 1 06/05/2023 19:16 WG2070369 Fluoranthene U 0.00796 0.0441 1 06/05/2023 19:16 WG2070369 Fluorene U 0.00718 0.0441 1 06/05/2023 19:16 WG2070369 Hexachlorobenzene U 0.0156 0.441 1 06/05/2023 19:16 WG2070369 Hexachloro-1,3-butadiene U 0.0148 0.441 1 06/05/2023 19:16 WG2070369 Hexachlorocyclopentadiene U 0.0232 0.441 1 06/05/2023 19:16 WG2070369 Hexachloroethane U 0.0174 0.441 1 06/05/2023 19:16 WG2070369 Indeno(1,2,3-cd)pyrene U 0.0125 0.0441 1 06/05/2023 19:16 WG2070369 Isophorone U 0.0135 0.441 1 06/05/2023 19:16 WG2070369 Naphthalene 0.0171 J 0.0111 0.0441 1 06/05/2023 19:16 WG2070369 Nitrobenzene U 0.0154 0.441 1 06/05/2023 19:16 WG2070369 n-Nitrosodimethylamine U 0.0655 0.441 1 06/05/2023 19:16 WG2070369 n-Nitrosodiphenylamine U 0.0334 0.441 1 06/05/2023 19:16 WG2070369 n-Nitrosodi-n-propylamine U 0.0147 0.441 1 06/05/2023 19:16 WG2070369 Phenanthrene U 0.00876 0.0441 1 06/05/2023 19:16 WG2070369 Benzylbutyl phthalate U 0.0138 0.441 1 06/05/2023 19:16 WG2070369 Bis(2-ethylhexyl)phthalate U 0.0559 0.441 1 06/05/2023 19:16 WG2070369 Di-n-butyl phthalate U 0.0151 0.441 1 06/05/2023 19:16 WG2070369 Diethyl phthalate U 0.0146 0.441 1 06/05/2023 19:16 WG2070369 Dimethyl phthalate U 0.0936 0.441 1 06/05/2023 19:16 WG2070369 Di-n-octyl phthalate U 0.0298 0.441 1 06/05/2023 19:16 WG2070369 Pyrene U 0.00859 0.0441 1 06/05/2023 19:16 WG2070369 1,2,4-Trichlorobenzene U 0.0138 0.441 1 06/05/2023 19:16 WG2070369 4-Chloro-3-methylphenol U 0.0143 0.441 1 06/05/2023 19:16 WG2070369 2-Chlorophenol U 0.0146 0.441 1 06/05/2023 19:16 WG2070369 2,4-Dichlorophenol U 0.0129 0.441 1 06/05/2023 19:16 WG2070369 2,4-Dimethylphenol U 0.0115 0.441 1 06/05/2023 19:16 WG2070369 4,6-Dinitro-2-methylphenol U 0.100 0.441 1 06/05/2023 19:16 WG2070369 2,4-Dinitrophenol U 0.103 0.441 1 06/05/2023 19:16 WG2070369 2-Nitrophenol U 0.0158 0.441 1 06/05/2023 19:16 WG2070369 4-Nitrophenol U 0.0138 0.441 1 06/05/2023 19:16 WG2070369 Pentachlorophenol U 0.0119 0.441 1 06/05/2023 19:16 WG2070369 Phenol U 0.0178 0.441 1 06/05/2023 19:16 WG2070369 2,4,6-Trichlorophenol U 0.0142 0.441 1 06/05/2023 19:16 WG2070369 (S) 2-Fluorophenol 54.6 12.0-120 06/05/2023 19:16 WG2070369 (S) Phenol-d5 53.7 10.0-120 06/05/2023 19:16 WG2070369 (S) Nitrobenzene-d5 53.4 10.0-122 06/05/2023 19:16 WG2070369 (S) 2-Fluorobiphenyl 54.9 15.0-120 06/05/2023 19:16 WG2070369 (S) 2,4,6-Tribromophenol 63.9 10.0-127 06/05/2023 19:16 WG2070369 (S) p-Terphenyl-d14 52.2 10.0-120 06/05/2023 19:16 WG2070369 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 17 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 17 of 51 SAMPLE RESULTS - 05 L1621526 SB-5 (13-14) Collected date/time: 05/26/23 11:25 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 77.6 1 06/01/2023 16:46 WG2069922 Volatile Petroleum Hydrocarbons by Method MADEPV Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C5-C8 Aliphatics 1350 74.4 223 30.2 06/09/2023 03:57 WG2073821 Unadjusted C9-C12 Aliphatics 1250 74.4 223 30.2 06/09/2023 03:57 WG2073821 Unadjusted C9-C10 Aromatics 955 74.4 223 30.2 06/09/2023 03:57 WG2073821 Total VPH 3550 74.4 223 30.2 06/09/2023 03:57 WG2073821 (S) 2,5-Dibromotoluene(FID)93.3 70.0-130 06/09/2023 03:57 WG2073821 (S) 2,5-Dibromotoluene(PID)102 70.0-130 06/09/2023 03:57 WG2073821 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acetone U 0.654 0.895 12.1 06/04/2023 20:46 WG2071407 Acrylonitrile U 0.0646 0.223 12.1 06/04/2023 20:46 WG2071407 Benzene 1.64 0.00835 0.0179 12.1 06/04/2023 20:46 WG2071407 Bromobenzene U 0.0161 0.223 12.1 06/04/2023 20:46 WG2071407 Bromodichloromethane U 0.0130 0.0448 12.1 06/04/2023 20:46 WG2071407 Bromoform U 0.0210 0.448 12.1 06/04/2023 20:46 WG2071407 Bromomethane U 0.0352 0.223 12.1 06/04/2023 20:46 WG2071407 n-Butylbenzene U 0.0939 0.223 12.1 06/04/2023 20:46 WG2071407 sec-Butylbenzene 4.36 C5 0.0515 0.223 12.1 06/04/2023 20:46 WG2071407 tert-Butylbenzene U J4 0.0349 0.0895 12.1 06/04/2023 20:46 WG2071407 Carbon tetrachloride U J4 0.0161 0.0895 12.1 06/04/2023 20:46 WG2071407 Chlorobenzene U 0.00376 0.0448 12.1 06/04/2023 20:46 WG2071407 Chlorodibromomethane U 0.0110 0.0448 12.1 06/04/2023 20:46 WG2071407 Chloroethane U 0.0305 0.0895 12.1 06/04/2023 20:46 WG2071407 Chloroform U 0.0185 0.0448 12.1 06/04/2023 20:46 WG2071407 Chloromethane U 0.0778 0.223 12.1 06/04/2023 20:46 WG2071407 2-Chlorotoluene U 0.0155 0.0448 12.1 06/04/2023 20:46 WG2071407 4-Chlorotoluene U 0.00804 0.0895 12.1 06/04/2023 20:46 WG2071407 1,2-Dibromo-3-Chloropropane U 0.0698 0.448 12.1 06/04/2023 20:46 WG2071407 1,2-Dibromoethane U 0.0116 0.0448 12.1 06/04/2023 20:46 WG2071407 Dibromomethane U 0.0134 0.0895 12.1 06/04/2023 20:46 WG2071407 1,2-Dichlorobenzene U 0.00760 0.0895 12.1 06/04/2023 20:46 WG2071407 1,3-Dichlorobenzene U 0.0107 0.0895 12.1 06/04/2023 20:46 WG2071407 1,4-Dichlorobenzene U 0.0125 0.0895 12.1 06/04/2023 20:46 WG2071407 Dichlorodifluoromethane U 0.0288 0.0448 12.1 06/04/2023 20:46 WG2071407 1,1-Dichloroethane U 0.00878 0.0448 12.1 06/04/2023 20:46 WG2071407 1,2-Dichloroethane U 0.0116 0.0448 12.1 06/04/2023 20:46 WG2071407 1,1-Dichloroethene U J4 0.0108 0.0448 12.1 06/04/2023 20:46 WG2071407 cis-1,2-Dichloroethene U 0.0131 0.0448 12.1 06/04/2023 20:46 WG2071407 trans-1,2-Dichloroethene U 0.0186 0.0895 12.1 06/04/2023 20:46 WG2071407 1,2-Dichloropropane U 0.0254 0.0895 12.1 06/04/2023 20:46 WG2071407 1,1-Dichloropropene U 0.0145 0.0448 12.1 06/04/2023 20:46 WG2071407 1,3-Dichloropropane U 0.00896 0.0895 12.1 06/04/2023 20:46 WG2071407 cis-1,3-Dichloropropene U 0.0135 0.0448 12.1 06/04/2023 20:46 WG2071407 trans-1,3-Dichloropropene U 0.0204 0.0895 12.1 06/04/2023 20:46 WG2071407 2,2-Dichloropropane U 0.0247 0.0448 12.1 06/04/2023 20:46 WG2071407 Di-isopropyl ether U 0.00733 0.0179 12.1 06/04/2023 20:46 WG2071407 Ethylbenzene 42.3 0.0132 0.0448 12.1 06/04/2023 20:46 WG2071407 Hexachloro-1,3-butadiene U 0.107 0.448 12.1 06/04/2023 20:46 WG2071407 Isopropylbenzene 6.37 0.00760 0.0448 12.1 06/04/2023 20:46 WG2071407 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 18 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 18 of 51 SAMPLE RESULTS - 05 L1621526 SB-5 (13-14) Collected date/time: 05/26/23 11:25 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time p-Isopropyltoluene U 0.0457 0.0895 12.1 06/04/2023 20:46 WG2071407 2-Butanone (MEK)U 1.14 1.79 12.1 06/04/2023 20:46 WG2071407 Methylene Chloride U 0.119 0.448 12.1 06/04/2023 20:46 WG2071407 4-Methyl-2-pentanone (MIBK)U 0.0408 0.448 12.1 06/04/2023 20:46 WG2071407 Methyl tert-butyl ether U 0.00625 0.0179 12.1 06/04/2023 20:46 WG2071407 Naphthalene 32.8 2.17 5.59 302 06/05/2023 19:36 WG2071836 n-Propylbenzene 27.2 0.0170 0.0895 12.1 06/04/2023 20:46 WG2071407 Styrene U 0.00410 0.223 12.1 06/04/2023 20:46 WG2071407 1,1,1,2-Tetrachloroethane U 0.0170 0.0448 12.1 06/04/2023 20:46 WG2071407 1,1,2,2-Tetrachloroethane U 0.0124 0.0448 12.1 06/04/2023 20:46 WG2071407 1,1,2-Trichlorotrifluoroethane U 0.0135 0.0448 12.1 06/04/2023 20:46 WG2071407 Tetrachloroethene U 0.0160 0.0448 12.1 06/04/2023 20:46 WG2071407 Toluene 55.2 0.581 2.23 302 06/05/2023 19:36 WG2071836 1,2,3-Trichlorobenzene U 0.131 0.223 12.1 06/04/2023 20:46 WG2071407 1,2,4-Trichlorobenzene U 0.0787 0.223 12.1 06/04/2023 20:46 WG2071407 1,1,1-Trichloroethane U 0.0166 0.0448 12.1 06/04/2023 20:46 WG2071407 1,1,2-Trichloroethane U 0.0107 0.0448 12.1 06/04/2023 20:46 WG2071407 Trichloroethene U 0.0105 0.0179 12.1 06/04/2023 20:46 WG2071407 Trichlorofluoromethane U 0.0148 0.0448 12.1 06/04/2023 20:46 WG2071407 1,2,3-Trichloropropane U 0.0290 0.223 12.1 06/04/2023 20:46 WG2071407 1,2,4-Trimethylbenzene 157 0.705 2.23 302 06/05/2023 19:36 WG2071836 1,2,3-Trimethylbenzene 38.3 0.705 2.23 302 06/05/2023 19:36 WG2071836 1,3,5-Trimethylbenzene 50.9 0.893 2.23 302 06/05/2023 19:36 WG2071836 Vinyl chloride U 0.0207 0.0448 12.1 06/04/2023 20:46 WG2071407 Xylenes, Total 265 0.393 2.90 302 06/05/2023 19:36 WG2071836 (S) Toluene-d8 90.2 75.0-131 06/04/2023 20:46 WG2071407 (S) Toluene-d8 98.9 75.0-131 06/05/2023 19:36 WG2071836 (S) 4-Bromofluorobenzene 99.2 67.0-138 06/04/2023 20:46 WG2071407 (S) 4-Bromofluorobenzene 102 67.0-138 06/05/2023 19:36 WG2071836 (S) 1,2-Dichloroethane-d4 87.9 70.0-130 06/04/2023 20:46 WG2071407 (S) 1,2-Dichloroethane-d4 86.3 70.0-130 06/05/2023 19:36 WG2071836 TPH by Method MADEPE Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C9-C18 Aliphatics 760 14.0 41.9 5 06/08/2023 15:14 WG2071822 Unadjusted C19-C36 Aliphatics 5.96 B J 2.79 8.37 1 06/07/2023 22:50 WG2071822 Unadjusted C11-C22 Aromatics 272 2.79 8.37 1 06/08/2023 01:47 WG2071822 Unadjusted Total Petroleum Hydrocarbons 1040 14.0 41.9 5 06/08/2023 15:14 WG2071822 (S) o-Terphenyl 73.1 40.0-140 06/08/2023 01:47 WG2071822 (S) 1-Chloro-octadecane 62.6 40.0-140 06/08/2023 15:14 WG2071822 (S) 1-Chloro-octadecane 64.8 40.0-140 06/07/2023 22:50 WG2071822 (S) 2-Fluorobiphenyl 88.9 40.0-140 06/08/2023 01:47 WG2071822 (S) 2-Bromonaphthalene 96.1 40.0-140 06/08/2023 01:47 WG2071822 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acenaphthene 0.0339 J 0.00694 0.0429 1 06/06/2023 12:23 WG2070370 Acenaphthylene U J4 0.00604 0.0429 1 06/06/2023 12:23 WG2070370 Anthracene U 0.00764 0.0429 1 06/06/2023 12:23 WG2070370 Benzidine U 0.0806 2.15 1 06/06/2023 12:23 WG2070370 Benzo(a)anthracene U 0.00756 0.0429 1 06/06/2023 12:23 WG2070370 Benzo(b)fluoranthene U 0.00800 0.0429 1 06/06/2023 12:23 WG2070370 Benzo(k)fluoranthene U 0.00762 0.0429 1 06/06/2023 12:23 WG2070370 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 19 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 19 of 51 SAMPLE RESULTS - 05 L1621526 SB-5 (13-14) Collected date/time: 05/26/23 11:25 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Benzo(g,h,i)perylene U 0.00784 0.0429 1 06/06/2023 12:23 WG2070370 Benzo(a)pyrene U 0.00797 0.0429 1 06/06/2023 12:23 WG2070370 Bis(2-chlorethoxy)methane U 0.0129 0.429 1 06/06/2023 12:23 WG2070370 Bis(2-chloroethyl)ether U 0.0142 0.429 1 06/06/2023 12:23 WG2070370 2,2-Oxybis(1-Chloropropane)U 0.0185 0.429 1 06/06/2023 12:23 WG2070370 4-Bromophenyl-phenylether U 0.0151 0.429 1 06/06/2023 12:23 WG2070370 2-Chloronaphthalene U 0.00753 0.0429 1 06/06/2023 12:23 WG2070370 4-Chlorophenyl-phenylether U 0.0149 0.429 1 06/06/2023 12:23 WG2070370 Chrysene U 0.00853 0.0429 1 06/06/2023 12:23 WG2070370 Dibenz(a,h)anthracene U 0.0119 0.0429 1 06/06/2023 12:23 WG2070370 1,2-Dichlorobenzene U 0.0127 0.429 1 06/06/2023 12:23 WG2070370 1,3-Dichlorobenzene U 0.0130 0.429 1 06/06/2023 12:23 WG2070370 1,4-Dichlorobenzene U 0.0128 0.429 1 06/06/2023 12:23 WG2070370 3,3-Dichlorobenzidine U 0.0158 0.429 1 06/06/2023 12:23 WG2070370 2,4-Dinitrotoluene U 0.0123 0.429 1 06/06/2023 12:23 WG2070370 2,6-Dinitrotoluene U 0.0140 0.429 1 06/06/2023 12:23 WG2070370 Fluoranthene U 0.00774 0.0429 1 06/06/2023 12:23 WG2070370 Fluorene 0.0422 J 0.00698 0.0429 1 06/06/2023 12:23 WG2070370 Hexachlorobenzene U 0.0152 0.429 1 06/06/2023 12:23 WG2070370 Hexachloro-1,3-butadiene U 0.0144 0.429 1 06/06/2023 12:23 WG2070370 Hexachlorocyclopentadiene U 0.0225 0.429 1 06/06/2023 12:23 WG2070370 Hexachloroethane U 0.0169 0.429 1 06/06/2023 12:23 WG2070370 Indeno(1,2,3-cd)pyrene U 0.0121 0.0429 1 06/06/2023 12:23 WG2070370 Isophorone U 0.0131 0.429 1 06/06/2023 12:23 WG2070370 Naphthalene 10.9 0.108 0.429 10 06/09/2023 00:43 WG2070370 Nitrobenzene U 0.0149 0.429 1 06/06/2023 12:23 WG2070370 n-Nitrosodimethylamine U 0.0636 0.429 1 06/06/2023 12:23 WG2070370 n-Nitrosodiphenylamine U 0.0325 0.429 1 06/06/2023 12:23 WG2070370 n-Nitrosodi-n-propylamine U 0.0143 0.429 1 06/06/2023 12:23 WG2070370 Phenanthrene 0.0527 0.00851 0.0429 1 06/06/2023 12:23 WG2070370 Benzylbutyl phthalate U 0.0134 0.429 1 06/06/2023 12:23 WG2070370 Bis(2-ethylhexyl)phthalate U 0.0543 0.429 1 06/06/2023 12:23 WG2070370 Di-n-butyl phthalate U 0.0147 0.429 1 06/06/2023 12:23 WG2070370 Diethyl phthalate U 0.0142 0.429 1 06/06/2023 12:23 WG2070370 Dimethyl phthalate U 0.0909 0.429 1 06/06/2023 12:23 WG2070370 Di-n-octyl phthalate U 0.0290 0.429 1 06/06/2023 12:23 WG2070370 Pyrene 0.0101 J 0.00835 0.0429 1 06/06/2023 12:23 WG2070370 1,2,4-Trichlorobenzene U 0.0134 0.429 1 06/06/2023 12:23 WG2070370 4-Chloro-3-methylphenol U 0.0139 0.429 1 06/06/2023 12:23 WG2070370 2-Chlorophenol U 0.0142 0.429 1 06/06/2023 12:23 WG2070370 2,4-Dichlorophenol U 0.0125 0.429 1 06/06/2023 12:23 WG2070370 2,4-Dimethylphenol U 0.0112 0.429 1 06/06/2023 12:23 WG2070370 4,6-Dinitro-2-methylphenol U 0.0972 0.429 1 06/06/2023 12:23 WG2070370 2,4-Dinitrophenol U 0.100 0.429 1 06/06/2023 12:23 WG2070370 2-Nitrophenol U 0.0153 0.429 1 06/06/2023 12:23 WG2070370 4-Nitrophenol U 0.0134 0.429 1 06/06/2023 12:23 WG2070370 Pentachlorophenol U 0.0115 0.429 1 06/06/2023 12:23 WG2070370 Phenol U 0.0173 0.429 1 06/06/2023 12:23 WG2070370 2,4,6-Trichlorophenol U 0.0138 0.429 1 06/06/2023 12:23 WG2070370 (S) 2-Fluorophenol 37.0 12.0-120 06/06/2023 12:23 WG2070370 (S) 2-Fluorophenol 37.0 12.0-120 06/09/2023 00:43 WG2070370 (S) Phenol-d5 43.8 10.0-120 06/09/2023 00:43 WG2070370 (S) Phenol-d5 41.0 10.0-120 06/06/2023 12:23 WG2070370 (S) Nitrobenzene-d5 49.7 10.0-122 06/06/2023 12:23 WG2070370 (S) Nitrobenzene-d5 0.000 J2 10.0-122 06/09/2023 00:43 WG2070370 (S) 2-Fluorobiphenyl 34.0 15.0-120 06/09/2023 00:43 WG2070370 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 20 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 20 of 51 SAMPLE RESULTS - 05 L1621526 SB-5 (13-14) Collected date/time: 05/26/23 11:25 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time (S) 2-Fluorobiphenyl 39.8 15.0-120 06/06/2023 12:23 WG2070370 (S) 2,4,6-Tribromophenol 54.1 10.0-127 06/06/2023 12:23 WG2070370 (S) 2,4,6-Tribromophenol 33.6 10.0-127 06/09/2023 00:43 WG2070370 (S) p-Terphenyl-d14 44.9 10.0-120 06/06/2023 12:23 WG2070370 (S) p-Terphenyl-d14 41.6 10.0-120 06/09/2023 00:43 WG2070370 Sample Narrative: L1621526-05 WG2070370: Dilution and surrogate failure due to matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 21 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 21 of 51 SAMPLE RESULTS - 06 L1621526 SB-6 (18-19) Collected date/time: 05/26/23 12:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 78.9 1 06/01/2023 16:46 WG2069922 Volatile Petroleum Hydrocarbons by Method MADEPV Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C5-C8 Aliphatics 580 73.9 222 30.8 06/09/2023 04:30 WG2073821 Unadjusted C9-C12 Aliphatics 570 73.9 222 30.8 06/09/2023 04:30 WG2073821 Unadjusted C9-C10 Aromatics 678 73.9 222 30.8 06/09/2023 04:30 WG2073821 Total VPH 1830 73.9 222 30.8 06/09/2023 04:30 WG2073821 (S) 2,5-Dibromotoluene(FID)86.5 70.0-130 06/09/2023 04:30 WG2073821 (S) 2,5-Dibromotoluene(PID)97.3 70.0-130 06/09/2023 04:30 WG2073821 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acetone U 0.647 0.886 12.3 06/04/2023 21:04 WG2071407 Acrylonitrile U 0.0639 0.222 12.3 06/04/2023 21:04 WG2071407 Benzene U 0.00827 0.0177 12.3 06/04/2023 21:04 WG2071407 Bromobenzene U 0.0160 0.222 12.3 06/04/2023 21:04 WG2071407 Bromodichloromethane U 0.0128 0.0444 12.3 06/04/2023 21:04 WG2071407 Bromoform U 0.0207 0.444 12.3 06/04/2023 21:04 WG2071407 Bromomethane U 0.0348 0.222 12.3 06/04/2023 21:04 WG2071407 n-Butylbenzene U 0.0930 0.222 12.3 06/04/2023 21:04 WG2071407 sec-Butylbenzene 2.25 C5 0.0510 0.222 12.3 06/04/2023 21:04 WG2071407 tert-Butylbenzene U J4 0.0346 0.0886 12.3 06/04/2023 21:04 WG2071407 Carbon tetrachloride U J4 0.0158 0.0886 12.3 06/04/2023 21:04 WG2071407 Chlorobenzene U 0.00372 0.0444 12.3 06/04/2023 21:04 WG2071407 Chlorodibromomethane U 0.0108 0.0444 12.3 06/04/2023 21:04 WG2071407 Chloroethane U 0.0301 0.0886 12.3 06/04/2023 21:04 WG2071407 Chloroform U 0.0183 0.0444 12.3 06/04/2023 21:04 WG2071407 Chloromethane U 0.0770 0.222 12.3 06/04/2023 21:04 WG2071407 2-Chlorotoluene U 0.0153 0.0444 12.3 06/04/2023 21:04 WG2071407 4-Chlorotoluene U 0.00798 0.0886 12.3 06/04/2023 21:04 WG2071407 1,2-Dibromo-3-Chloropropane U 0.0691 0.444 12.3 06/04/2023 21:04 WG2071407 1,2-Dibromoethane U 0.0115 0.0444 12.3 06/04/2023 21:04 WG2071407 Dibromomethane U 0.0133 0.0886 12.3 06/04/2023 21:04 WG2071407 1,2-Dichlorobenzene U 0.00753 0.0886 12.3 06/04/2023 21:04 WG2071407 1,3-Dichlorobenzene U 0.0106 0.0886 12.3 06/04/2023 21:04 WG2071407 1,4-Dichlorobenzene U 0.0124 0.0886 12.3 06/04/2023 21:04 WG2071407 Dichlorodifluoromethane U 0.0285 0.0444 12.3 06/04/2023 21:04 WG2071407 1,1-Dichloroethane U 0.00870 0.0444 12.3 06/04/2023 21:04 WG2071407 1,2-Dichloroethane U 0.0115 0.0444 12.3 06/04/2023 21:04 WG2071407 1,1-Dichloroethene U J4 0.0107 0.0444 12.3 06/04/2023 21:04 WG2071407 cis-1,2-Dichloroethene U 0.0130 0.0444 12.3 06/04/2023 21:04 WG2071407 trans-1,2-Dichloroethene U 0.0184 0.0886 12.3 06/04/2023 21:04 WG2071407 1,2-Dichloropropane U 0.0252 0.0886 12.3 06/04/2023 21:04 WG2071407 1,1-Dichloropropene U 0.0143 0.0444 12.3 06/04/2023 21:04 WG2071407 1,3-Dichloropropane U 0.00887 0.0886 12.3 06/04/2023 21:04 WG2071407 cis-1,3-Dichloropropene U 0.0134 0.0444 12.3 06/04/2023 21:04 WG2071407 trans-1,3-Dichloropropene U 0.0202 0.0886 12.3 06/04/2023 21:04 WG2071407 2,2-Dichloropropane U 0.0245 0.0444 12.3 06/04/2023 21:04 WG2071407 Di-isopropyl ether U 0.00726 0.0177 12.3 06/04/2023 21:04 WG2071407 Ethylbenzene 10.7 0.0131 0.0444 12.3 06/04/2023 21:04 WG2071407 Hexachloro-1,3-butadiene U 0.106 0.444 12.3 06/04/2023 21:04 WG2071407 Isopropylbenzene 3.12 0.00753 0.0444 12.3 06/04/2023 21:04 WG2071407 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 22 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 22 of 51 SAMPLE RESULTS - 06 L1621526 SB-6 (18-19) Collected date/time: 05/26/23 12:00 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time p-Isopropyltoluene U 0.0452 0.0886 12.3 06/04/2023 21:04 WG2071407 2-Butanone (MEK)U 1.12 1.77 12.3 06/04/2023 21:04 WG2071407 Methylene Chloride U 0.118 0.444 12.3 06/04/2023 21:04 WG2071407 4-Methyl-2-pentanone (MIBK)U 0.0403 0.444 12.3 06/04/2023 21:04 WG2071407 Methyl tert-butyl ether U 0.00621 0.0177 12.3 06/04/2023 21:04 WG2071407 Naphthalene 13.6 0.0864 0.222 12.3 06/04/2023 21:04 WG2071407 n-Propylbenzene 13.5 0.0168 0.0886 12.3 06/04/2023 21:04 WG2071407 Styrene U 0.00406 0.222 12.3 06/04/2023 21:04 WG2071407 1,1,1,2-Tetrachloroethane U 0.0168 0.0444 12.3 06/04/2023 21:04 WG2071407 1,1,2,2-Tetrachloroethane U 0.0123 0.0444 12.3 06/04/2023 21:04 WG2071407 1,1,2-Trichlorotrifluoroethane U 0.0133 0.0444 12.3 06/04/2023 21:04 WG2071407 Tetrachloroethene U 0.0158 0.0444 12.3 06/04/2023 21:04 WG2071407 Toluene 0.288 0.0230 0.0886 12.3 06/04/2023 21:04 WG2071407 1,2,3-Trichlorobenzene U 0.130 0.222 12.3 06/04/2023 21:04 WG2071407 1,2,4-Trichlorobenzene U 0.0779 0.222 12.3 06/04/2023 21:04 WG2071407 1,1,1-Trichloroethane U 0.0164 0.0444 12.3 06/04/2023 21:04 WG2071407 1,1,2-Trichloroethane U 0.0106 0.0444 12.3 06/04/2023 21:04 WG2071407 Trichloroethene U 0.0103 0.0177 12.3 06/04/2023 21:04 WG2071407 Trichlorofluoromethane U 0.0147 0.0444 12.3 06/04/2023 21:04 WG2071407 1,2,3-Trichloropropane U 0.0287 0.222 12.3 06/04/2023 21:04 WG2071407 1,2,4-Trimethylbenzene 93.7 0.350 1.11 154 06/05/2023 19:55 WG2071836 1,2,3-Trimethylbenzene 18.4 0.0279 0.0886 12.3 06/04/2023 21:04 WG2071407 1,3,5-Trimethylbenzene 43.8 0.0354 0.0886 12.3 06/04/2023 21:04 WG2071407 Vinyl chloride U 0.0206 0.0444 12.3 06/04/2023 21:04 WG2071407 Xylenes, Total 41.0 0.0156 0.115 12.3 06/04/2023 21:04 WG2071407 (S) Toluene-d8 89.9 75.0-131 06/04/2023 21:04 WG2071407 (S) Toluene-d8 98.5 75.0-131 06/05/2023 19:55 WG2071836 (S) 4-Bromofluorobenzene 97.7 67.0-138 06/04/2023 21:04 WG2071407 (S) 4-Bromofluorobenzene 102 67.0-138 06/05/2023 19:55 WG2071836 (S) 1,2-Dichloroethane-d4 92.1 70.0-130 06/04/2023 21:04 WG2071407 (S) 1,2-Dichloroethane-d4 82.5 70.0-130 06/05/2023 19:55 WG2071836 TPH by Method MADEPE Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Unadjusted C9-C18 Aliphatics 442 13.8 41.2 5 06/08/2023 14:52 WG2071822 Unadjusted C19-C36 Aliphatics 4.31 B J 2.75 8.23 1 06/07/2023 23:12 WG2071822 Unadjusted C11-C22 Aromatics 132 2.75 8.23 1 06/08/2023 02:54 WG2071822 Unadjusted Total Petroleum Hydrocarbons 578 13.8 41.2 5 06/08/2023 14:52 WG2071822 (S) o-Terphenyl 69.9 40.0-140 06/08/2023 02:54 WG2071822 (S) 1-Chloro-octadecane 63.8 40.0-140 06/08/2023 14:52 WG2071822 (S) 1-Chloro-octadecane 64.6 40.0-140 06/07/2023 23:12 WG2071822 (S) 2-Fluorobiphenyl 85.8 40.0-140 06/08/2023 02:54 WG2071822 (S) 2-Bromonaphthalene 91.5 40.0-140 06/08/2023 02:54 WG2071822 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Acenaphthene 0.0166 J 0.00683 0.0422 1 06/06/2023 11:01 WG2070370 Acenaphthylene U J4 0.00594 0.0422 1 06/06/2023 11:01 WG2070370 Anthracene U 0.00751 0.0422 1 06/06/2023 11:01 WG2070370 Benzidine U 0.0793 2.12 1 06/06/2023 11:01 WG2070370 Benzo(a)anthracene U 0.00744 0.0422 1 06/06/2023 11:01 WG2070370 Benzo(b)fluoranthene U 0.00787 0.0422 1 06/06/2023 11:01 WG2070370 Benzo(k)fluoranthene U 0.00750 0.0422 1 06/06/2023 11:01 WG2070370 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 23 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 23 of 51 SAMPLE RESULTS - 06 L1621526 SB-6 (18-19) Collected date/time: 05/26/23 12:00 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time Benzo(g,h,i)perylene U 0.00771 0.0422 1 06/06/2023 11:01 WG2070370 Benzo(a)pyrene U 0.00784 0.0422 1 06/06/2023 11:01 WG2070370 Bis(2-chlorethoxy)methane U 0.0127 0.422 1 06/06/2023 11:01 WG2070370 Bis(2-chloroethyl)ether U 0.0139 0.422 1 06/06/2023 11:01 WG2070370 2,2-Oxybis(1-Chloropropane)U 0.0182 0.422 1 06/06/2023 11:01 WG2070370 4-Bromophenyl-phenylether U 0.0148 0.422 1 06/06/2023 11:01 WG2070370 2-Chloronaphthalene U 0.00741 0.0422 1 06/06/2023 11:01 WG2070370 4-Chlorophenyl-phenylether U 0.0147 0.422 1 06/06/2023 11:01 WG2070370 Chrysene U 0.00839 0.0422 1 06/06/2023 11:01 WG2070370 Dibenz(a,h)anthracene U 0.0117 0.0422 1 06/06/2023 11:01 WG2070370 1,2-Dichlorobenzene U 0.0125 0.422 1 06/06/2023 11:01 WG2070370 1,3-Dichlorobenzene U 0.0128 0.422 1 06/06/2023 11:01 WG2070370 1,4-Dichlorobenzene U 0.0126 0.422 1 06/06/2023 11:01 WG2070370 3,3-Dichlorobenzidine U 0.0156 0.422 1 06/06/2023 11:01 WG2070370 2,4-Dinitrotoluene U 0.0121 0.422 1 06/06/2023 11:01 WG2070370 2,6-Dinitrotoluene U 0.0138 0.422 1 06/06/2023 11:01 WG2070370 Fluoranthene U 0.00761 0.0422 1 06/06/2023 11:01 WG2070370 Fluorene 0.0227 J 0.00687 0.0422 1 06/06/2023 11:01 WG2070370 Hexachlorobenzene U 0.0149 0.422 1 06/06/2023 11:01 WG2070370 Hexachloro-1,3-butadiene U 0.0142 0.422 1 06/06/2023 11:01 WG2070370 Hexachlorocyclopentadiene U 0.0222 0.422 1 06/06/2023 11:01 WG2070370 Hexachloroethane U 0.0166 0.422 1 06/06/2023 11:01 WG2070370 Indeno(1,2,3-cd)pyrene U 0.0119 0.0422 1 06/06/2023 11:01 WG2070370 Isophorone U 0.0129 0.422 1 06/06/2023 11:01 WG2070370 Naphthalene 3.05 0.0529 0.212 5 06/09/2023 00:21 WG2070370 Nitrobenzene U 0.0147 0.422 1 06/06/2023 11:01 WG2070370 n-Nitrosodimethylamine U 0.0626 0.422 1 06/06/2023 11:01 WG2070370 n-Nitrosodiphenylamine U 0.0319 0.422 1 06/06/2023 11:01 WG2070370 n-Nitrosodi-n-propylamine U 0.0141 0.422 1 06/06/2023 11:01 WG2070370 Phenanthrene 0.0285 J 0.00837 0.0422 1 06/06/2023 11:01 WG2070370 Benzylbutyl phthalate U 0.0132 0.422 1 06/06/2023 11:01 WG2070370 Bis(2-ethylhexyl)phthalate U 0.0535 0.422 1 06/06/2023 11:01 WG2070370 Di-n-butyl phthalate U 0.0144 0.422 1 06/06/2023 11:01 WG2070370 Diethyl phthalate U 0.0139 0.422 1 06/06/2023 11:01 WG2070370 Dimethyl phthalate U 0.0894 0.422 1 06/06/2023 11:01 WG2070370 Di-n-octyl phthalate U 0.0285 0.422 1 06/06/2023 11:01 WG2070370 Pyrene U 0.00821 0.0422 1 06/06/2023 11:01 WG2070370 1,2,4-Trichlorobenzene U 0.0132 0.422 1 06/06/2023 11:01 WG2070370 4-Chloro-3-methylphenol U 0.0137 0.422 1 06/06/2023 11:01 WG2070370 2-Chlorophenol U 0.0139 0.422 1 06/06/2023 11:01 WG2070370 2,4-Dichlorophenol U 0.0123 0.422 1 06/06/2023 11:01 WG2070370 2,4-Dimethylphenol U 0.0110 0.422 1 06/06/2023 11:01 WG2070370 4,6-Dinitro-2-methylphenol U 0.0956 0.422 1 06/06/2023 11:01 WG2070370 2,4-Dinitrophenol U 0.0987 0.422 1 06/06/2023 11:01 WG2070370 2-Nitrophenol U 0.0151 0.422 1 06/06/2023 11:01 WG2070370 4-Nitrophenol U 0.0132 0.422 1 06/06/2023 11:01 WG2070370 Pentachlorophenol U 0.0113 0.422 1 06/06/2023 11:01 WG2070370 Phenol U 0.0170 0.422 1 06/06/2023 11:01 WG2070370 2,4,6-Trichlorophenol U 0.0136 0.422 1 06/06/2023 11:01 WG2070370 (S) 2-Fluorophenol 27.7 12.0-120 06/09/2023 00:21 WG2070370 (S) 2-Fluorophenol 31.8 12.0-120 06/06/2023 11:01 WG2070370 (S) Phenol-d5 31.7 10.0-120 06/09/2023 00:21 WG2070370 (S) Phenol-d5 32.9 10.0-120 06/06/2023 11:01 WG2070370 (S) Nitrobenzene-d5 0.000 J2 10.0-122 06/09/2023 00:21 WG2070370 (S) Nitrobenzene-d5 40.7 10.0-122 06/06/2023 11:01 WG2070370 (S) 2-Fluorobiphenyl 31.2 15.0-120 06/06/2023 11:01 WG2070370 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 24 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 24 of 51 SAMPLE RESULTS - 06 L1621526 SB-6 (18-19) Collected date/time: 05/26/23 12:00 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg mg/kg date / time (S) 2-Fluorobiphenyl 28.0 15.0-120 06/09/2023 00:21 WG2070370 (S) 2,4,6-Tribromophenol 30.1 10.0-127 06/09/2023 00:21 WG2070370 (S) 2,4,6-Tribromophenol 41.7 10.0-127 06/06/2023 11:01 WG2070370 (S) p-Terphenyl-d14 33.6 10.0-120 06/06/2023 11:01 WG2070370 (S) p-Terphenyl-d14 32.7 10.0-120 06/09/2023 00:21 WG2070370 Sample Narrative: L1621526-06 WG2070370: Dilution and surrogate failure due to matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 25 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 25 of 51 QUALITY CONTROL SUMMARYWG2069920 Total Solids by Method 2540 G-2011 L1621526-01 Method Blank (MB) (MB) R3932024-1 06/01/23 16:23 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1621525-01 Original Sample (OS) • Duplicate (DUP) (OS) L1621525-01 06/01/23 16:23 • (DUP) R3932024-3 06/01/23 16:23 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 96.5 96.6 1 0.106 10 Laboratory Control Sample (LCS) (LCS) R3932024-2 06/01/23 16:23 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 85.0-115 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 26 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 26 of 51 QUALITY CONTROL SUMMARYWG2069922 Total Solids by Method 2540 G-2011 L1621526-02,03,04,05,06 Method Blank (MB) (MB) R3932029-1 06/01/23 16:46 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00200 L1621529-02 Original Sample (OS) • Duplicate (DUP) (OS) L1621529-02 06/01/23 16:46 • (DUP) R3932029-3 06/01/23 16:46 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 75.4 72.0 1 4.59 10 Laboratory Control Sample (LCS) (LCS) R3932029-2 06/01/23 16:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 99.9 85.0-115 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 27 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 27 of 51 QUALITY CONTROL SUMMARYWG2073821 Volatile Petroleum Hydrocarbons by Method MADEPV L1621526-04,05,06 Method Blank (MB) (MB) R3934845-1 06/08/23 20:05 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Unadjusted C5-C8 Aliphatics U 1.67 5.00 Unadjusted C9-C12 Aliphatics U 1.67 5.00 Unadjusted C9-C10 Aromatics U 1.67 5.00 Total VPH U 1.67 5.00 (S) 2,5-Dibromotoluene(FID)72.7 70.0-130 (S) 2,5-Dibromotoluene(PID)83.5 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3934845-2 06/08/23 21:56 • (LCSD) R3934845-3 06/08/23 23:34 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Unadjusted C5-C8 Aliphatics 60.0 58.1 60.5 96.8 101 70.0-130 4.05 25 Unadjusted C9-C12 Aliphatics 70.0 77.7 79.8 111 114 70.0-130 2.67 25 Unadjusted C9-C10 Aromatics 10.0 12.9 13.0 129 130 70.0-130 0.772 25 Total VPH 140 149 153 106 109 70.0-130 2.65 25 (S) 2,5-Dibromotoluene(FID) 77.2 73.2 70.0-130 (S) 2,5-Dibromotoluene(PID) 91.3 86.5 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 28 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 28 of 51 QUALITY CONTROL SUMMARYWG2075219 Volatile Petroleum Hydrocarbons by Method MADEPV L1621526-01,02,03 Method Blank (MB) (MB) R3937515-3 06/15/23 15:30 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Unadjusted C5-C8 Aliphatics U 1.67 5.00 Unadjusted C9-C12 Aliphatics U 1.67 5.00 Unadjusted C9-C10 Aromatics U 1.67 5.00 Total VPH U 1.67 5.00 (S) 2,5-Dibromotoluene(FID)99.2 70.0-130 (S) 2,5-Dibromotoluene(PID)109 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3937515-1 06/15/23 13:18 • (LCSD) R3937515-2 06/15/23 13:51 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Unadjusted C5-C8 Aliphatics 60.0 46.8 46.4 78.0 77.3 70.0-130 0.858 25 Unadjusted C9-C12 Aliphatics 70.0 66.3 65.4 94.7 93.4 70.0-130 1.37 25 Unadjusted C9-C10 Aromatics 10.0 10.4 10.2 104 102 70.0-130 1.94 25 Total VPH 140 123 122 87.9 87.1 70.0-130 0.816 25 (S) 2,5-Dibromotoluene(FID) 100 95.7 70.0-130 (S) 2,5-Dibromotoluene(PID) 111 105 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 29 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 29 of 51 QUALITY CONTROL SUMMARYWG2071407 Volatile Organic Compounds (GC/MS) by Method 8260D L1621526-01,02,03,04,05,06 Method Blank (MB) (MB) R3932847-3 06/04/23 13:17 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Acetone U 0.0365 0.0500 Acrylonitrile U 0.00361 0.0125 Benzene U 0.000467 0.00100 Bromobenzene U 0.000900 0.0125 Bromodichloromethane U 0.000725 0.00250 Bromoform U 0.00117 0.0250 Bromomethane U 0.00197 0.0125 n-Butylbenzene U 0.00525 0.0125 sec-Butylbenzene U 0.00288 0.0125 tert-Butylbenzene U 0.00195 0.00500 Carbon tetrachloride U 0.000898 0.00500 Chlorobenzene U 0.000210 0.00250 Chlorodibromomethane U 0.000612 0.00250 Chloroethane U 0.00170 0.00500 Chloroform U 0.00103 0.00250 Chloromethane U 0.00435 0.0125 2-Chlorotoluene U 0.000865 0.00250 4-Chlorotoluene U 0.000450 0.00500 1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1,2-Dibromoethane U 0.000648 0.00250 Dibromomethane U 0.000750 0.00500 1,2-Dichlorobenzene U 0.000425 0.00500 1,3-Dichlorobenzene U 0.000600 0.00500 1,4-Dichlorobenzene U 0.000700 0.00500 Dichlorodifluoromethane U 0.00161 0.00250 1,1-Dichloroethane U 0.000491 0.00250 1,2-Dichloroethane U 0.000649 0.00250 1,1-Dichloroethene U 0.000606 0.00250 cis-1,2-Dichloroethene U 0.000734 0.00250 trans-1,2-Dichloroethene U 0.00104 0.00500 1,2-Dichloropropane U 0.00142 0.00500 1,1-Dichloropropene U 0.000809 0.00250 1,3-Dichloropropane U 0.000501 0.00500 cis-1,3-Dichloropropene U 0.000757 0.00250 trans-1,3-Dichloropropene U 0.00114 0.00500 2,2-Dichloropropane U 0.00138 0.00250 Di-isopropyl ether U 0.000410 0.00100 Ethylbenzene 0.00130 J 0.000737 0.00250 Hexachloro-1,3-butadiene U 0.00600 0.0250 Isopropylbenzene U 0.000425 0.00250 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 30 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 30 of 51 QUALITY CONTROL SUMMARYWG2071407 Volatile Organic Compounds (GC/MS) by Method 8260D L1621526-01,02,03,04,05,06 Method Blank (MB) (MB) R3932847-3 06/04/23 13:17 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg p-Isopropyltoluene U 0.00255 0.00500 2-Butanone (MEK)U 0.0635 0.100 Methylene Chloride 0.00960 J 0.00664 0.0250 4-Methyl-2-pentanone (MIBK)U 0.00228 0.0250 Methyl tert-butyl ether U 0.000350 0.00100 Naphthalene U 0.00488 0.0125 n-Propylbenzene U 0.000950 0.00500 Styrene 0.00503 J 0.000229 0.0125 1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 Tetrachloroethene U 0.000896 0.00250 Toluene 0.00158 J 0.00130 0.00500 1,2,3-Trichlorobenzene U 0.00733 0.0125 1,2,4-Trichlorobenzene U 0.00440 0.0125 1,1,1-Trichloroethane U 0.000923 0.00250 1,1,2-Trichloroethane U 0.000597 0.00250 Trichloroethene U 0.000584 0.00100 Trichlorofluoromethane U 0.000827 0.00250 1,2,3-Trichloropropane U 0.00162 0.0125 1,2,4-Trimethylbenzene U 0.00158 0.00500 1,2,3-Trimethylbenzene U 0.00158 0.00500 1,3,5-Trimethylbenzene U 0.00200 0.00500 Vinyl chloride U 0.00116 0.00250 Xylenes, Total 0.00397 J 0.000880 0.00650 (S) Toluene-d8 99.1 75.0-131 (S) 4-Bromofluorobenzene 108 67.0-138 (S) 1,2-Dichloroethane-d4 92.1 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3932847-1 06/04/23 10:29 • (LCSD) R3932847-2 06/04/23 10:48 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Acetone 0.625 0.814 0.784 130 125 10.0-160 3.75 31 Acrylonitrile 0.625 0.661 0.698 106 112 45.0-153 5.45 22 Benzene 0.125 0.134 0.135 107 108 70.0-123 0.743 20 Bromobenzene 0.125 0.123 0.132 98.4 106 73.0-121 7.06 20 Bromodichloromethane 0.125 0.121 0.119 96.8 95.2 73.0-121 1.67 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 31 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 31 of 51 QUALITY CONTROL SUMMARYWG2071407 Volatile Organic Compounds (GC/MS) by Method 8260D L1621526-01,02,03,04,05,06 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3932847-1 06/04/23 10:29 • (LCSD) R3932847-2 06/04/23 10:48 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Bromoform 0.125 0.134 0.135 107 108 64.0-132 0.743 20 Bromomethane 0.125 0.129 0.116 103 92.8 56.0-147 10.6 20 n-Butylbenzene 0.125 0.138 0.140 110 112 68.0-135 1.44 20 sec-Butylbenzene 0.125 0.151 0.156 121 125 74.0-130 3.26 20 tert-Butylbenzene 0.125 0.151 0.160 121 128 75.0-127 J4 5.79 20 Carbon tetrachloride 0.125 0.162 0.162 130 130 66.0-128 J4 J4 0.000 20 Chlorobenzene 0.125 0.127 0.128 102 102 76.0-128 0.784 20 Chlorodibromomethane 0.125 0.130 0.137 104 110 74.0-127 5.24 20 Chloroethane 0.125 0.150 0.144 120 115 61.0-134 4.08 20 Chloroform 0.125 0.134 0.133 107 106 72.0-123 0.749 20 Chloromethane 0.125 0.113 0.116 90.4 92.8 51.0-138 2.62 20 2-Chlorotoluene 0.125 0.128 0.140 102 112 75.0-124 8.96 20 4-Chlorotoluene 0.125 0.127 0.132 102 106 75.0-124 3.86 20 1,2-Dibromo-3-Chloropropane 0.125 0.119 0.137 95.2 110 59.0-130 14.1 20 1,2-Dibromoethane 0.125 0.129 0.134 103 107 74.0-128 3.80 20 Dibromomethane 0.125 0.130 0.127 104 102 75.0-122 2.33 20 1,2-Dichlorobenzene 0.125 0.126 0.130 101 104 76.0-124 3.12 20 1,3-Dichlorobenzene 0.125 0.127 0.129 102 103 76.0-125 1.56 20 1,4-Dichlorobenzene 0.125 0.124 0.132 99.2 106 77.0-121 6.25 20 Dichlorodifluoromethane 0.125 0.155 0.144 124 115 43.0-156 7.36 20 1,1-Dichloroethane 0.125 0.138 0.134 110 107 70.0-127 2.94 20 1,2-Dichloroethane 0.125 0.132 0.131 106 105 65.0-131 0.760 20 1,1-Dichloroethene 0.125 0.166 0.165 133 132 65.0-131 J4 J4 0.604 20 cis-1,2-Dichloroethene 0.125 0.134 0.135 107 108 73.0-125 0.743 20 trans-1,2-Dichloroethene 0.125 0.143 0.141 114 113 71.0-125 1.41 20 1,2-Dichloropropane 0.125 0.117 0.121 93.6 96.8 74.0-125 3.36 20 1,1-Dichloropropene 0.125 0.156 0.156 125 125 73.0-125 0.000 20 1,3-Dichloropropane 0.125 0.132 0.134 106 107 80.0-125 1.50 20 cis-1,3-Dichloropropene 0.125 0.125 0.127 100 102 76.0-127 1.59 20 trans-1,3-Dichloropropene 0.125 0.134 0.138 107 110 73.0-127 2.94 20 2,2-Dichloropropane 0.125 0.149 0.144 119 115 59.0-135 3.41 20 Di-isopropyl ether 0.125 0.133 0.132 106 106 60.0-136 0.755 20 Ethylbenzene 0.125 0.129 0.130 103 104 74.0-126 0.772 20 Hexachloro-1,3-butadiene 0.125 0.152 0.151 122 121 57.0-150 0.660 20 Isopropylbenzene 0.125 0.144 0.148 115 118 72.0-127 2.74 20 p-Isopropyltoluene 0.125 0.146 0.151 117 121 72.0-133 3.37 20 2-Butanone (MEK)0.625 0.629 0.665 101 106 30.0-160 5.56 24 Methylene Chloride 0.125 0.129 0.124 103 99.2 68.0-123 3.95 20 4-Methyl-2-pentanone (MIBK)0.625 0.677 0.718 108 115 56.0-143 5.88 20 Methyl tert-butyl ether 0.125 0.130 0.134 104 107 66.0-132 3.03 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 32 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 32 of 51 QUALITY CONTROL SUMMARYWG2071407 Volatile Organic Compounds (GC/MS) by Method 8260D L1621526-01,02,03,04,05,06 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3932847-1 06/04/23 10:29 • (LCSD) R3932847-2 06/04/23 10:48 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Naphthalene 0.125 0.104 0.108 83.2 86.4 59.0-130 3.77 20 n-Propylbenzene 0.125 0.132 0.138 106 110 74.0-126 4.44 20 Styrene 0.125 0.132 0.138 106 110 72.0-127 4.44 20 1,1,1,2-Tetrachloroethane 0.125 0.133 0.142 106 114 74.0-129 6.55 20 1,1,2,2-Tetrachloroethane 0.125 0.134 0.140 107 112 68.0-128 4.38 20 1,1,2-Trichlorotrifluoroethane 0.125 0.165 0.155 132 124 61.0-139 6.25 20 Tetrachloroethene 0.125 0.146 0.149 117 119 70.0-136 2.03 20 Toluene 0.125 0.127 0.130 102 104 75.0-121 2.33 20 1,2,3-Trichlorobenzene 0.125 0.127 0.133 102 106 59.0-139 4.62 20 1,2,4-Trichlorobenzene 0.125 0.111 0.117 88.8 93.6 62.0-137 5.26 20 1,1,1-Trichloroethane 0.125 0.156 0.155 125 124 69.0-126 0.643 20 1,1,2-Trichloroethane 0.125 0.129 0.133 103 106 78.0-123 3.05 20 Trichloroethene 0.125 0.130 0.132 104 106 76.0-126 1.53 20 Trichlorofluoromethane 0.125 0.163 0.158 130 126 61.0-142 3.12 20 1,2,3-Trichloropropane 0.125 0.128 0.145 102 116 67.0-129 12.5 20 1,2,4-Trimethylbenzene 0.125 0.134 0.140 107 112 70.0-126 4.38 20 1,2,3-Trimethylbenzene 0.125 0.131 0.137 105 110 74.0-124 4.48 20 1,3,5-Trimethylbenzene 0.125 0.139 0.148 111 118 73.0-127 6.27 20 Vinyl chloride 0.125 0.150 0.154 120 123 63.0-134 2.63 20 Xylenes, Total 0.375 0.393 0.411 105 110 72.0-127 4.48 20 (S) Toluene-d8 97.1 97.6 75.0-131 (S) 4-Bromofluorobenzene 101 102 67.0-138 (S) 1,2-Dichloroethane-d4 105 99.0 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 33 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 33 of 51 QUALITY CONTROL SUMMARYWG2071836 Volatile Organic Compounds (GC/MS) by Method 8260D L1621526-05,06 Method Blank (MB) (MB) R3933202-2 06/05/23 11:10 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Naphthalene U 0.00488 0.0125 Toluene U 0.00130 0.00500 1,2,4-Trimethylbenzene U 0.00158 0.00500 1,2,3-Trimethylbenzene U 0.00158 0.00500 1,3,5-Trimethylbenzene U 0.00200 0.00500 Xylenes, Total U 0.000880 0.00650 (S) Toluene-d8 99.0 75.0-131 (S) 4-Bromofluorobenzene 100 67.0-138 (S) 1,2-Dichloroethane-d4 85.5 70.0-130 Laboratory Control Sample (LCS) (LCS) R3933202-1 06/05/23 10:11 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Naphthalene 0.125 0.120 96.0 59.0-130 Toluene 0.125 0.139 111 75.0-121 1,2,4-Trimethylbenzene 0.125 0.124 99.2 70.0-126 1,2,3-Trimethylbenzene 0.125 0.135 108 74.0-124 1,3,5-Trimethylbenzene 0.125 0.136 109 73.0-127 Xylenes, Total 0.375 0.434 116 72.0-127 (S) Toluene-d8 95.7 75.0-131 (S) 4-Bromofluorobenzene 102 67.0-138 (S) 1,2-Dichloroethane-d4 87.8 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 34 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 34 of 51 QUALITY CONTROL SUMMARYWG2071822 TPH by Method MADEPE L1621526-01,02,03,04,05,06 Method Blank (MB) (MB) R3934072-1 06/07/23 01:28 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Unadjusted C9-C18 Aliphatics 2.20 J 2.17 6.50 Unadjusted C19-C36 Aliphatics 4.31 J 2.17 6.50 Unadjusted Total Petroleum Hydrocarbons 6.51 2.17 6.50 (S) 1-Chloro-octadecane 88.2 40.0-140 Method Blank (MB) (MB) R3934072-4 06/07/23 06:58 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Unadjusted C11-C22 Aromatics 4.21 J 2.17 6.50 Unadjusted Total Petroleum Hydrocarbons 4.21 J 2.17 6.50 (S) o-Terphenyl 87.2 40.0-140 (S) 2-Fluorobiphenyl 91.0 40.0-140 (S) 2-Bromonaphthalene 99.1 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3934072-2 06/07/23 01:53 • (LCSD) R3934072-3 06/07/23 02:15 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Unadjusted C9-C18 Aliphatics 39.9 33.5 35.6 84.0 89.2 40.0-140 6.08 25 Unadjusted C19-C36 Aliphatics 53.2 46.6 52.2 87.6 98.1 40.0-140 11.3 25 (S) 1-Chloro-octadecane 72.6 75.6 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3934072-5 06/07/23 07:20 • (LCSD) R3934072-6 06/07/23 08:03 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Unadjusted C11-C22 Aromatics 113 88.4 91.8 78.2 81.2 40.0-140 3.77 25 (S) o-Terphenyl 74.4 78.0 40.0-140 (S) 2-Fluorobiphenyl 88.2 86.7 40.0-140 (S) 2-Bromonaphthalene 93.8 93.0 40.0-140 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 35 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 35 of 51 QUALITY CONTROL SUMMARYWG2071822 TPH by Method MADEPE L1621526-01,02,03,04,05,06 L1621526-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1621526-06 06/07/23 23:12 • (MS) R3934072-7 06/07/23 23:35 • (MSD) R3934072-8 06/07/23 23:57 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Unadjusted C9-C18 Aliphatics 50.2 436 400 391 0.000 0.000 1 40.0-140 V V 2.24 50 Unadjusted C19-C36 Aliphatics 66.9 4.31 54.2 48.3 74.6 66.2 1 40.0-140 11.6 50 (S) 1-Chloro-octadecane 68.4 94.7 40.0-140 L1621526-06 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1621526-06 06/08/23 02:54 • (MS) R3934072-9 06/08/23 03:16 • (MSD) R3934072-10 06/08/23 03:38 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Unadjusted C11-C22 Aromatics 142 132 215 215 58.9 59.5 1 40.0-140 0.000 50 (S) o-Terphenyl 70.3 71.6 40.0-140 (S) 2-Fluorobiphenyl 86.9 88.9 40.0-140 (S) 2-Bromonaphthalene 90.2 98.1 40.0-140 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 36 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 36 of 51 QUALITY CONTROL SUMMARYWG2070369 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-01,02,03,04 Method Blank (MB) (MB) R3933459-2 06/05/23 17:48 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Acenaphthene U 0.00539 0.0333 Acenaphthylene U 0.00469 0.0333 Anthracene U 0.00593 0.0333 Benzidine U 0.0626 1.67 Benzo(a)anthracene U 0.00587 0.0333 Benzo(b)fluoranthene U 0.00621 0.0333 Benzo(k)fluoranthene U 0.00592 0.0333 Benzo(g,h,i)perylene U 0.00609 0.0333 Benzo(a)pyrene U 0.00619 0.0333 Bis(2-chlorethoxy)methane U 0.0100 0.333 Bis(2-chloroethyl)ether U 0.0110 0.333 2,2-Oxybis(1-Chloropropane)U 0.0144 0.333 4-Bromophenyl-phenylether U 0.0117 0.333 2-Chloronaphthalene U 0.00585 0.0333 4-Chlorophenyl-phenylether U 0.0116 0.333 Chrysene U 0.00662 0.0333 Dibenz(a,h)anthracene U 0.00923 0.0333 1,2-Dichlorobenzene U 0.00987 0.333 1,3-Dichlorobenzene U 0.0101 0.333 1,4-Dichlorobenzene U 0.00991 0.333 3,3-Dichlorobenzidine U 0.0123 0.333 2,4-Dinitrotoluene U 0.00955 0.333 2,6-Dinitrotoluene U 0.0109 0.333 Fluoranthene U 0.00601 0.0333 Fluorene U 0.00542 0.0333 Hexachlorobenzene U 0.0118 0.333 Hexachloro-1,3-butadiene U 0.0112 0.333 Hexachlorocyclopentadiene U 0.0175 0.333 Hexachloroethane U 0.0131 0.333 Indeno(1,2,3-cd)pyrene U 0.00941 0.0333 Isophorone U 0.0102 0.333 Naphthalene U 0.00836 0.0333 Nitrobenzene U 0.0116 0.333 n-Nitrosodimethylamine U 0.0494 0.333 n-Nitrosodiphenylamine U 0.0252 0.333 n-Nitrosodi-n-propylamine U 0.0111 0.333 Phenanthrene U 0.00661 0.0333 Benzylbutyl phthalate U 0.0104 0.333 Bis(2-ethylhexyl)phthalate U 0.0422 0.333 Di-n-butyl phthalate U 0.0114 0.333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 37 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 37 of 51 QUALITY CONTROL SUMMARYWG2070369 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-01,02,03,04 Method Blank (MB) (MB) R3933459-2 06/05/23 17:48 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Diethyl phthalate U 0.0110 0.333 Dimethyl phthalate U 0.0706 0.333 Di-n-octyl phthalate U 0.0225 0.333 Pyrene U 0.00648 0.0333 1,2,4-Trichlorobenzene U 0.0104 0.333 4-Chloro-3-methylphenol U 0.0108 0.333 2-Chlorophenol U 0.0110 0.333 2,4-Dichlorophenol U 0.00970 0.333 2,4-Dimethylphenol U 0.00870 0.333 4,6-Dinitro-2-methylphenol U 0.0755 0.333 2,4-Dinitrophenol U 0.0779 0.333 2-Nitrophenol U 0.0119 0.333 4-Nitrophenol U 0.0104 0.333 Pentachlorophenol U 0.00896 0.333 Phenol U 0.0134 0.333 2,4,6-Trichlorophenol U 0.0107 0.333 (S) 2-Fluorophenol 60.8 12.0-120 (S) Phenol-d5 56.5 10.0-120 (S) Nitrobenzene-d5 58.0 10.0-122 (S) 2-Fluorobiphenyl 63.4 15.0-120 (S) 2,4,6-Tribromophenol 70.7 10.0-127 (S) p-Terphenyl-d14 62.5 10.0-120 Laboratory Control Sample (LCS) (LCS) R3933459-1 06/05/23 17:26 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Acenaphthene 0.666 0.389 58.4 38.0-120 Acenaphthylene 0.666 0.419 62.9 40.0-120 Anthracene 0.666 0.419 62.9 42.0-120 Benzidine 1.33 0.539 40.5 10.0-120 Benzo(a)anthracene 0.666 0.379 56.9 44.0-120 Benzo(b)fluoranthene 0.666 0.391 58.7 43.0-120 Benzo(k)fluoranthene 0.666 0.427 64.1 44.0-120 Benzo(g,h,i)perylene 0.666 0.440 66.1 43.0-120 Benzo(a)pyrene 0.666 0.446 67.0 45.0-120 Bis(2-chlorethoxy)methane 0.666 0.386 58.0 20.0-120 Bis(2-chloroethyl)ether 0.666 0.453 68.0 16.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 38 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 38 of 51 QUALITY CONTROL SUMMARYWG2070369 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-01,02,03,04 Laboratory Control Sample (LCS) (LCS) R3933459-1 06/05/23 17:26 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% 2,2-Oxybis(1-Chloropropane)0.666 0.359 53.9 23.0-120 4-Bromophenyl-phenylether 0.666 0.403 60.5 40.0-120 2-Chloronaphthalene 0.666 0.394 59.2 35.0-120 4-Chlorophenyl-phenylether 0.666 0.396 59.5 40.0-120 Chrysene 0.666 0.409 61.4 43.0-120 Dibenz(a,h)anthracene 0.666 0.427 64.1 44.0-120 1,2-Dichlorobenzene 0.666 0.346 52.0 32.0-120 1,3-Dichlorobenzene 0.666 0.331 49.7 30.0-120 1,4-Dichlorobenzene 0.666 0.321 48.2 31.0-120 3,3-Dichlorobenzidine 1.33 0.867 65.2 28.0-120 2,4-Dinitrotoluene 0.666 0.484 72.7 45.0-120 2,6-Dinitrotoluene 0.666 0.401 60.2 42.0-120 Fluoranthene 0.666 0.422 63.4 44.0-120 Fluorene 0.666 0.394 59.2 41.0-120 Hexachlorobenzene 0.666 0.418 62.8 39.0-120 Hexachloro-1,3-butadiene 0.666 0.371 55.7 15.0-120 Hexachlorocyclopentadiene 0.666 0.326 48.9 15.0-120 Hexachloroethane 0.666 0.331 49.7 17.0-120 Indeno(1,2,3-cd)pyrene 0.666 0.398 59.8 45.0-120 Isophorone 0.666 0.369 55.4 23.0-120 Naphthalene 0.666 0.376 56.5 18.0-120 Nitrobenzene 0.666 0.372 55.9 17.0-120 n-Nitrosodimethylamine 0.666 0.451 67.7 10.0-125 n-Nitrosodiphenylamine 0.666 0.404 60.7 40.0-120 n-Nitrosodi-n-propylamine 0.666 0.336 50.5 26.0-120 Phenanthrene 0.666 0.380 57.1 42.0-120 Benzylbutyl phthalate 0.666 0.364 54.7 40.0-120 Bis(2-ethylhexyl)phthalate 0.666 0.357 53.6 41.0-120 Di-n-butyl phthalate 0.666 0.374 56.2 43.0-120 Diethyl phthalate 0.666 0.379 56.9 43.0-120 Dimethyl phthalate 0.666 0.403 60.5 43.0-120 Di-n-octyl phthalate 0.666 0.364 54.7 40.0-120 Pyrene 0.666 0.375 56.3 41.0-120 1,2,4-Trichlorobenzene 0.666 0.382 57.4 17.0-120 4-Chloro-3-methylphenol 0.666 0.375 56.3 28.0-120 2-Chlorophenol 0.666 0.381 57.2 28.0-120 2,4-Dichlorophenol 0.666 0.422 63.4 25.0-120 2,4-Dimethylphenol 0.666 0.383 57.5 15.0-120 4,6-Dinitro-2-methylphenol 0.666 0.438 65.8 16.0-120 2,4-Dinitrophenol 0.666 0.348 52.3 10.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 39 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 39 of 51 QUALITY CONTROL SUMMARYWG2070369 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-01,02,03,04 Laboratory Control Sample (LCS) (LCS) R3933459-1 06/05/23 17:26 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% 2-Nitrophenol 0.666 0.454 68.2 20.0-120 4-Nitrophenol 0.666 0.371 55.7 27.0-120 Pentachlorophenol 0.666 0.429 64.4 29.0-120 Phenol 0.666 0.321 48.2 28.0-120 2,4,6-Trichlorophenol 0.666 0.419 62.9 37.0-120 (S) 2-Fluorophenol 61.4 12.0-120 (S) Phenol-d5 58.6 10.0-120 (S) Nitrobenzene-d5 58.6 10.0-122 (S) 2-Fluorobiphenyl 59.8 15.0-120 (S) 2,4,6-Tribromophenol 79.9 10.0-127 (S) p-Terphenyl-d14 59.8 10.0-120 L1621275-24 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1621275-24 06/08/23 23:18 • (MS) R3934922-1 06/08/23 23:39 • (MSD) R3934922-2 06/09/23 00:00 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Acenaphthene 0.679 U 0.400 0.448 58.9 66.9 1 18.0-120 11.4 32 Acenaphthylene 0.679 U 0.413 0.470 60.9 70.1 1 25.0-120 12.8 32 Anthracene 0.679 U 0.416 0.484 61.4 72.2 1 22.0-120 15.1 29 Benzidine 1.36 U 0.183 0.220 13.5 16.5 1 10.0-120 18.4 40 Benzo(a)anthracene 0.679 U 0.438 0.499 64.5 74.4 1 25.0-120 13.0 29 Benzo(b)fluoranthene 0.679 U 0.420 0.491 61.8 73.3 1 19.0-122 15.8 31 Benzo(k)fluoranthene 0.679 U 0.404 0.473 59.5 70.6 1 23.0-120 15.7 30 Benzo(g,h,i)perylene 0.679 0.00631 0.287 0.305 41.3 44.6 1 10.0-120 6.25 33 Benzo(a)pyrene 0.679 U 0.448 0.523 66.1 78.1 1 24.0-120 15.4 30 Bis(2-chlorethoxy)methane 0.679 U 0.293 0.326 43.2 48.6 1 10.0-120 10.6 34 Bis(2-chloroethyl)ether 0.679 U 0.353 0.414 52.0 61.8 1 10.0-120 16.1 40 2,2-Oxybis(1-Chloropropane)0.679 U 0.365 0.414 53.8 61.8 1 10.0-120 12.7 40 4-Bromophenyl-phenylether 0.679 U 0.426 0.502 62.7 74.8 1 27.0-120 16.4 30 2-Chloronaphthalene 0.679 U 0.392 0.439 57.7 65.5 1 20.0-120 11.4 32 4-Chlorophenyl-phenylether 0.679 U 0.417 0.476 61.5 71.0 1 24.0-120 13.1 29 Chrysene 0.679 U 0.421 0.479 62.0 71.5 1 21.0-120 13.0 29 Dibenz(a,h)anthracene 0.679 U 0.350 0.385 51.5 57.4 1 10.0-120 9.52 32 1,2-Dichlorobenzene 0.679 U 0.373 0.415 55.0 62.0 1 10.0-120 10.7 38 1,3-Dichlorobenzene 0.679 U 0.340 0.387 50.2 57.7 1 10.0-120 12.7 40 1,4-Dichlorobenzene 0.679 U 0.343 0.395 50.6 58.9 1 10.0-120 13.9 39 3,3-Dichlorobenzidine 1.36 U 0.830 0.956 61.1 71.5 1 10.0-120 14.2 34 2,4-Dinitrotoluene 0.679 U 0.432 0.497 63.6 74.1 1 30.0-120 14.0 31 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 40 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 40 of 51 QUALITY CONTROL SUMMARYWG2070369 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-01,02,03,04 L1621275-24 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1621275-24 06/08/23 23:18 • (MS) R3934922-1 06/08/23 23:39 • (MSD) R3934922-2 06/09/23 00:00 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% 2,6-Dinitrotoluene 0.679 U 0.432 0.497 63.6 74.1 1 25.0-120 14.0 31 Fluoranthene 0.679 U 0.423 0.491 62.3 73.3 1 18.0-126 15.1 32 Fluorene 0.679 U 0.405 0.462 59.7 68.9 1 25.0-120 13.0 30 Hexachlorobenzene 0.679 U 0.430 0.485 63.3 72.4 1 27.0-120 12.1 28 Hexachloro-1,3-butadiene 0.679 U 0.335 0.367 49.4 54.8 1 10.0-120 9.08 38 Hexachlorocyclopentadiene 0.679 U 0.120 0.115 17.7 17.2 1 10.0-120 4.37 40 Hexachloroethane 0.679 U 0.327 0.366 48.2 54.6 1 10.0-120 11.3 40 Indeno(1,2,3-cd)pyrene 0.679 U 0.315 0.342 46.4 51.1 1 10.0-120 8.45 32 Isophorone 0.679 U 0.311 0.343 45.8 51.2 1 13.0-120 10.1 34 Naphthalene 0.679 0.0113 0.305 0.334 43.3 48.2 1 10.0-120 9.00 35 Nitrobenzene 0.679 U 0.270 0.303 39.8 45.2 1 10.0-120 11.5 36 n-Nitrosodimethylamine 0.679 U 0.235 0.257 34.7 38.3 1 10.0-127 8.77 40 n-Nitrosodiphenylamine 0.679 U 0.400 0.468 58.9 69.8 1 17.0-120 15.6 29 n-Nitrosodi-n-propylamine 0.679 U 0.363 0.413 53.5 61.7 1 10.0-120 13.0 37 Phenanthrene 0.679 U 0.395 0.450 58.2 67.2 1 17.0-120 13.1 31 Benzylbutyl phthalate 0.679 U 0.486 0.562 71.7 83.9 1 23.0-120 14.5 30 Bis(2-ethylhexyl)phthalate 0.679 U 0.510 0.572 75.2 85.3 1 17.0-126 11.4 30 Di-n-butyl phthalate 0.679 U 0.457 0.531 67.3 79.1 1 30.0-120 15.0 29 Diethyl phthalate 0.679 U 0.423 0.481 62.3 71.8 1 26.0-120 13.0 28 Dimethyl phthalate 0.679 U 0.413 0.472 60.9 70.4 1 25.0-120 13.2 29 Di-n-octyl phthalate 0.679 U 0.506 0.568 74.5 84.7 1 21.0-123 11.5 29 Pyrene 0.679 U 0.418 0.474 61.7 70.7 1 16.0-121 12.4 32 1,2,4-Trichlorobenzene 0.679 U 0.327 0.366 48.2 54.6 1 12.0-120 11.3 37 4-Chloro-3-methylphenol 0.679 U 0.354 0.394 52.1 58.7 1 15.0-120 10.7 30 2-Chlorophenol 0.679 U 0.392 0.452 57.7 67.5 1 15.0-120 14.4 37 2,4-Dichlorophenol 0.679 U 0.368 0.408 54.2 60.9 1 20.0-120 10.3 31 2,4-Dimethylphenol 0.679 U 0.334 0.373 49.2 55.7 1 10.0-120 11.0 33 4,6-Dinitro-2-methylphenol 0.679 U 0.182 0.203 26.8 30.2 1 10.0-120 10.7 39 2,4-Dinitrophenol 0.679 U 0.158 0.170 23.3 25.3 1 10.0-121 6.90 40 2-Nitrophenol 0.679 U 0.395 0.443 58.2 66.1 1 12.0-120 11.5 39 4-Nitrophenol 0.679 U 0.425 0.487 62.6 72.7 1 10.0-137 13.8 32 Pentachlorophenol 0.679 U 0.324 0.395 47.7 58.9 1 10.0-160 19.7 31 Phenol 0.679 U 0.353 0.404 52.0 60.3 1 12.0-120 13.6 38 2,4,6-Trichlorophenol 0.679 U 0.451 0.500 66.5 74.5 1 19.0-120 10.2 32 (S) 2-Fluorophenol 64.1 68.3 12.0-120 (S) Phenol-d5 57.1 61.3 10.0-120 (S) Nitrobenzene-d5 49.4 49.1 10.0-122 (S) 2-Fluorobiphenyl 63.0 67.2 15.0-120 (S) 2,4,6-Tribromophenol 77.6 85.7 10.0-127 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 41 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 41 of 51 QUALITY CONTROL SUMMARYWG2070369 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-01,02,03,04 L1621275-24 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1621275-24 06/08/23 23:18 • (MS) R3934922-1 06/08/23 23:39 • (MSD) R3934922-2 06/09/23 00:00 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% (S) p-Terphenyl-d14 70.3 77.0 10.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 42 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 42 of 51 QUALITY CONTROL SUMMARYWG2070370 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-05,06 Method Blank (MB) (MB) R3933916-2 06/06/23 10:41 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Acenaphthene U 0.00539 0.0333 Acenaphthylene U 0.00469 0.0333 Anthracene U 0.00593 0.0333 Benzidine U 0.0626 1.67 Benzo(a)anthracene U 0.00587 0.0333 Benzo(b)fluoranthene U 0.00621 0.0333 Benzo(k)fluoranthene U 0.00592 0.0333 Benzo(g,h,i)perylene U 0.00609 0.0333 Benzo(a)pyrene U 0.00619 0.0333 Bis(2-chlorethoxy)methane U 0.0100 0.333 Bis(2-chloroethyl)ether U 0.0110 0.333 2,2-Oxybis(1-Chloropropane)U 0.0144 0.333 4-Bromophenyl-phenylether U 0.0117 0.333 2-Chloronaphthalene U 0.00585 0.0333 4-Chlorophenyl-phenylether U 0.0116 0.333 Chrysene U 0.00662 0.0333 Dibenz(a,h)anthracene U 0.00923 0.0333 1,2-Dichlorobenzene U 0.00987 0.333 1,3-Dichlorobenzene U 0.0101 0.333 1,4-Dichlorobenzene U 0.00991 0.333 3,3-Dichlorobenzidine U 0.0123 0.333 2,4-Dinitrotoluene U 0.00955 0.333 2,6-Dinitrotoluene U 0.0109 0.333 Fluoranthene U 0.00601 0.0333 Fluorene U 0.00542 0.0333 Hexachlorobenzene U 0.0118 0.333 Hexachloro-1,3-butadiene U 0.0112 0.333 Hexachlorocyclopentadiene U 0.0175 0.333 Hexachloroethane U 0.0131 0.333 Indeno(1,2,3-cd)pyrene U 0.00941 0.0333 Isophorone U 0.0102 0.333 Naphthalene U 0.00836 0.0333 Nitrobenzene U 0.0116 0.333 n-Nitrosodimethylamine U 0.0494 0.333 n-Nitrosodiphenylamine U 0.0252 0.333 n-Nitrosodi-n-propylamine U 0.0111 0.333 Phenanthrene U 0.00661 0.0333 Benzylbutyl phthalate U 0.0104 0.333 Bis(2-ethylhexyl)phthalate U 0.0422 0.333 Di-n-butyl phthalate U 0.0114 0.333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 43 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 43 of 51 QUALITY CONTROL SUMMARYWG2070370 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-05,06 Method Blank (MB) (MB) R3933916-2 06/06/23 10:41 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Diethyl phthalate U 0.0110 0.333 Dimethyl phthalate U 0.0706 0.333 Di-n-octyl phthalate U 0.0225 0.333 Pyrene U 0.00648 0.0333 1,2,4-Trichlorobenzene U 0.0104 0.333 4-Chloro-3-methylphenol U 0.0108 0.333 2-Chlorophenol U 0.0110 0.333 2,4-Dichlorophenol U 0.00970 0.333 2,4-Dimethylphenol U 0.00870 0.333 4,6-Dinitro-2-methylphenol U 0.0755 0.333 2,4-Dinitrophenol U 0.0779 0.333 2-Nitrophenol U 0.0119 0.333 4-Nitrophenol U 0.0104 0.333 Pentachlorophenol U 0.00896 0.333 Phenol U 0.0134 0.333 2,4,6-Trichlorophenol U 0.0107 0.333 (S) 2-Fluorophenol 41.7 12.0-120 (S) Phenol-d5 37.5 10.0-120 (S) Nitrobenzene-d5 51.1 10.0-122 (S) 2-Fluorobiphenyl 41.1 15.0-120 (S) 2,4,6-Tribromophenol 56.2 10.0-127 (S) p-Terphenyl-d14 55.0 10.0-120 Laboratory Control Sample (LCS) (LCS) R3933916-1 06/06/23 10:20 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Acenaphthene 0.666 0.266 39.9 38.0-120 Acenaphthylene 0.666 0.262 39.3 40.0-120 J4 Anthracene 0.666 0.310 46.5 42.0-120 Benzidine 1.33 0.266 20.0 10.0-120 Benzo(a)anthracene 0.666 0.378 56.8 44.0-120 Benzo(b)fluoranthene 0.666 0.332 49.8 43.0-120 Benzo(k)fluoranthene 0.666 0.367 55.1 44.0-120 Benzo(g,h,i)perylene 0.666 0.370 55.6 43.0-120 Benzo(a)pyrene 0.666 0.376 56.5 45.0-120 Bis(2-chlorethoxy)methane 0.666 0.260 39.0 20.0-120 Bis(2-chloroethyl)ether 0.666 0.261 39.2 16.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 44 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 44 of 51 QUALITY CONTROL SUMMARYWG2070370 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-05,06 Laboratory Control Sample (LCS) (LCS) R3933916-1 06/06/23 10:20 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% 2,2-Oxybis(1-Chloropropane)0.666 0.215 32.3 23.0-120 4-Bromophenyl-phenylether 0.666 0.355 53.3 40.0-120 2-Chloronaphthalene 0.666 0.244 36.6 35.0-120 4-Chlorophenyl-phenylether 0.666 0.387 58.1 40.0-120 Chrysene 0.666 0.388 58.3 43.0-120 Dibenz(a,h)anthracene 0.666 0.365 54.8 44.0-120 1,2-Dichlorobenzene 0.666 0.229 34.4 32.0-120 1,3-Dichlorobenzene 0.666 0.204 30.6 30.0-120 1,4-Dichlorobenzene 0.666 0.226 33.9 31.0-120 3,3-Dichlorobenzidine 1.33 0.737 55.4 28.0-120 2,4-Dinitrotoluene 0.666 0.420 63.1 45.0-120 2,6-Dinitrotoluene 0.666 0.354 53.2 42.0-120 Fluoranthene 0.666 0.392 58.9 44.0-120 Fluorene 0.666 0.304 45.6 41.0-120 Hexachlorobenzene 0.666 0.373 56.0 39.0-120 Hexachloro-1,3-butadiene 0.666 0.396 59.5 15.0-120 Hexachlorocyclopentadiene 0.666 0.345 51.8 15.0-120 Hexachloroethane 0.666 0.237 35.6 17.0-120 Indeno(1,2,3-cd)pyrene 0.666 0.337 50.6 45.0-120 Isophorone 0.666 0.277 41.6 23.0-120 Naphthalene 0.666 0.231 34.7 18.0-120 Nitrobenzene 0.666 0.284 42.6 17.0-120 n-Nitrosodimethylamine 0.666 0.255 38.3 10.0-125 n-Nitrosodiphenylamine 0.666 0.295 44.3 40.0-120 n-Nitrosodi-n-propylamine 0.666 0.254 38.1 26.0-120 Phenanthrene 0.666 0.292 43.8 42.0-120 Benzylbutyl phthalate 0.666 0.338 50.8 40.0-120 Bis(2-ethylhexyl)phthalate 0.666 0.336 50.5 41.0-120 Di-n-butyl phthalate 0.666 0.335 50.3 43.0-120 Diethyl phthalate 0.666 0.354 53.2 43.0-120 Dimethyl phthalate 0.666 0.341 51.2 43.0-120 Di-n-octyl phthalate 0.666 0.350 52.6 40.0-120 Pyrene 0.666 0.338 50.8 41.0-120 1,2,4-Trichlorobenzene 0.666 0.289 43.4 17.0-120 4-Chloro-3-methylphenol 0.666 0.357 53.6 28.0-120 2-Chlorophenol 0.666 0.235 35.3 28.0-120 2,4-Dichlorophenol 0.666 0.299 44.9 25.0-120 2,4-Dimethylphenol 0.666 0.343 51.5 15.0-120 4,6-Dinitro-2-methylphenol 0.666 0.520 78.1 16.0-120 2,4-Dinitrophenol 0.666 0.519 77.9 10.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 45 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 45 of 51 QUALITY CONTROL SUMMARYWG2070370 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-05,06 Laboratory Control Sample (LCS) (LCS) R3933916-1 06/06/23 10:20 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% 2-Nitrophenol 0.666 0.284 42.6 20.0-120 4-Nitrophenol 0.666 0.309 46.4 27.0-120 Pentachlorophenol 0.666 0.523 78.5 29.0-120 Phenol 0.666 0.212 31.8 28.0-120 2,4,6-Trichlorophenol 0.666 0.352 52.9 37.0-120 (S) 2-Fluorophenol 39.9 12.0-120 (S) Phenol-d5 39.9 10.0-120 (S) Nitrobenzene-d5 45.6 10.0-122 (S) 2-Fluorobiphenyl 43.2 15.0-120 (S) 2,4,6-Tribromophenol 68.9 10.0-127 (S) p-Terphenyl-d14 58.6 10.0-120 L1621760-09 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1621760-09 06/06/23 14:26 • (MS) R3933916-3 06/06/23 14:46 • (MSD) R3933916-4 06/06/23 15:07 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Acenaphthene 0.764 0.0133 0.314 0.244 39.4 30.2 1 18.0-120 25.1 32 Acenaphthylene 0.764 U 0.305 0.244 39.9 32.0 1 25.0-120 22.1 32 Anthracene 0.764 0.0214 0.344 0.303 42.2 36.8 1 22.0-120 12.8 29 Benzidine 1.52 U U U 0.000 0.000 1 10.0-120 J6 J6 0.000 40 Benzo(a)anthracene 0.764 0.0468 0.391 0.350 45.1 39.7 1 25.0-120 11.1 29 Benzo(b)fluoranthene 0.764 0.0472 0.353 0.308 40.1 34.2 1 19.0-122 13.5 31 Benzo(k)fluoranthene 0.764 0.0180 0.341 0.320 42.2 39.5 1 23.0-120 6.25 30 Benzo(g,h,i)perylene 0.764 0.0255 0.349 0.330 42.3 39.9 1 10.0-120 5.41 33 Benzo(a)pyrene 0.764 0.0437 0.389 0.349 45.2 39.9 1 24.0-120 10.9 30 Bis(2-chlorethoxy)methane 0.764 U 0.319 0.244 41.7 32.0 1 10.0-120 26.5 34 Bis(2-chloroethyl)ether 0.764 U 0.269 0.195 35.3 25.5 1 10.0-120 32.1 40 2,2-Oxybis(1-Chloropropane)0.764 U 0.234 0.175 30.6 23.0 1 10.0-120 28.6 40 4-Bromophenyl-phenylether 0.764 U 0.380 0.339 49.7 44.4 1 27.0-120 11.2 30 2-Chloronaphthalene 0.764 U 0.297 0.233 38.9 30.5 1 20.0-120 24.2 32 4-Chlorophenyl-phenylether 0.764 U 0.448 0.359 58.7 47.0 1 24.0-120 22.2 29 Chrysene 0.764 0.0432 0.375 0.346 43.4 39.7 1 21.0-120 7.95 29 Dibenz(a,h)anthracene 0.764 U 0.357 0.334 46.7 43.7 1 10.0-120 6.64 32 1,2-Dichlorobenzene 0.764 U 0.222 0.162 29.1 21.2 1 10.0-120 31.6 38 1,3-Dichlorobenzene 0.764 U 0.208 0.150 27.2 19.7 1 10.0-120 32.1 40 1,4-Dichlorobenzene 0.764 U 0.214 0.161 28.1 21.0 1 10.0-120 28.7 39 3,3-Dichlorobenzidine 1.52 U 0.152 0.347 10.0 22.8 1 10.0-120 J3 78.0 34 2,4-Dinitrotoluene 0.764 U 0.429 0.376 56.2 49.2 1 30.0-120 13.1 31 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 46 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 46 of 51 QUALITY CONTROL SUMMARYWG2070370 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-05,06 L1621760-09 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1621760-09 06/06/23 14:26 • (MS) R3933916-3 06/06/23 14:46 • (MSD) R3933916-4 06/06/23 15:07 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% 2,6-Dinitrotoluene 0.764 U 0.376 0.316 49.2 41.4 1 25.0-120 17.2 31 Fluoranthene 0.764 0.130 0.460 0.378 43.2 32.6 1 18.0-126 19.4 32 Fluorene 0.764 0.00976 0.345 0.282 43.9 35.7 1 25.0-120 20.1 30 Hexachlorobenzene 0.764 U 0.378 0.343 49.5 44.9 1 27.0-120 9.86 28 Hexachloro-1,3-butadiene 0.764 U 0.463 0.331 60.7 43.4 1 10.0-120 33.2 38 Hexachlorocyclopentadiene 0.764 U 0.280 0.217 36.6 28.4 1 10.0-120 25.4 40 Hexachloroethane 0.764 U 0.219 0.162 28.7 21.2 1 10.0-120 30.1 40 Indeno(1,2,3-cd)pyrene 0.764 0.0263 0.328 0.299 39.5 35.8 1 10.0-120 9.14 32 Isophorone 0.764 U 0.361 0.282 47.3 36.9 1 13.0-120 24.6 34 Naphthalene 0.764 U 0.285 0.213 37.4 27.9 1 10.0-120 29.0 35 Nitrobenzene 0.764 U 0.331 0.244 43.4 32.0 1 10.0-120 30.3 36 n-Nitrosodimethylamine 0.764 U 0.255 0.167 33.3 21.9 1 10.0-127 J3 41.3 40 n-Nitrosodiphenylamine 0.764 U 0.312 0.272 40.8 35.6 1 17.0-120 13.8 29 n-Nitrosodi-n-propylamine 0.764 U 0.298 0.233 39.0 30.5 1 10.0-120 24.6 37 Phenanthrene 0.764 0.0812 0.351 0.284 35.3 26.6 1 17.0-120 20.9 31 Benzylbutyl phthalate 0.764 U 0.332 0.308 43.5 40.4 1 23.0-120 7.51 30 Bis(2-ethylhexyl)phthalate 0.764 U 0.328 0.314 42.9 41.1 1 17.0-126 4.29 30 Di-n-butyl phthalate 0.764 U 0.345 0.306 45.2 40.1 1 30.0-120 12.0 29 Diethyl phthalate 0.764 U 0.377 0.310 49.4 40.5 1 26.0-120 19.7 28 Dimethyl phthalate 0.764 U 0.371 0.300 48.6 39.3 1 25.0-120 21.2 29 Di-n-octyl phthalate 0.764 U 0.354 0.343 46.4 44.9 1 21.0-123 3.29 29 Pyrene 0.764 0.0901 0.377 0.322 37.6 30.4 1 16.0-121 15.7 32 1,2,4-Trichlorobenzene 0.764 U 0.335 0.264 43.8 34.5 1 12.0-120 23.8 37 4-Chloro-3-methylphenol 0.764 U 0.455 0.400 59.6 52.4 1 15.0-120 12.9 30 2-Chlorophenol 0.764 U 0.252 0.211 33.0 27.6 1 15.0-120 17.8 37 2,4-Dichlorophenol 0.764 U 0.410 0.357 53.8 46.7 1 20.0-120 14.1 31 2,4-Dimethylphenol 0.764 U 0.465 0.399 61.0 52.3 1 10.0-120 15.4 33 4,6-Dinitro-2-methylphenol 0.764 U 0.472 0.464 61.9 60.8 1 10.0-120 1.71 39 2,4-Dinitrophenol 0.764 U 0.635 0.589 83.2 77.2 1 10.0-121 7.49 40 2-Nitrophenol 0.764 U 0.359 0.271 47.0 35.4 1 12.0-120 28.1 39 4-Nitrophenol 0.764 U 0.386 0.323 50.6 42.3 1 10.0-137 17.8 32 Pentachlorophenol 0.764 U 0.561 0.570 73.4 74.6 1 10.0-160 1.62 31 Phenol 0.764 U 0.285 0.214 37.4 28.1 1 12.0-120 28.4 38 2,4,6-Trichlorophenol 0.764 U 0.425 0.358 55.7 46.8 1 19.0-120 17.3 32 (S) 2-Fluorophenol 36.9 28.8 12.0-120 (S) Phenol-d5 39.3 33.3 10.0-120 (S) Nitrobenzene-d5 51.7 34.5 10.0-122 (S) 2-Fluorobiphenyl 42.9 34.5 15.0-120 (S) 2,4,6-Tribromophenol 64.3 62.9 10.0-127 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 47 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 47 of 51 QUALITY CONTROL SUMMARYWG2070370 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1621526-05,06 L1621760-09 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1621760-09 06/06/23 14:26 • (MS) R3933916-3 06/06/23 14:46 • (MSD) R3933916-4 06/06/23 15:07 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% (S) p-Terphenyl-d14 46.5 44.1 10.0-120 Sample Narrative: OS: Duplicate Analysis performed due to QC failure. Results don't confirm; both analyses reported 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 48 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 48 of 51 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. MDL (dry)Method Detection Limit. RDL Reported Detection Limit. RDL (dry)Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description B The same analyte is found in the associated blank. C5 The reported concentration is an estimate. The continuing calibration standard associated with this data responded high.Data is likely to show a high bias concerning the result. J The identification of the analyte is acceptable; the reported value is an estimate. J2 Surrogate recovery limits have been exceeded; values are outside lower control limits. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 49 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 49 of 51 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 13:52 50 of 51 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1621526 06/16/23 15:37 50 of 51 ANALYTICAL REPORT June 14, 2023 ATC Group Services LLC Sample Delivery Group:L1623251 Samples Received:06/06/2023 Project Number: Description:Middleburg Grocery Report To:Corinne Lally 2725 E. Millbrook Road, Ste 121 Raleigh, NC 27604 Entire Report Reviewed By: June 14, 2023 [Preliminary Report] Heather J Wagner Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 1 of 42 June 14, 2023 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 1 of 42 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 MW-1R L1623251-01 6 MW-2R L1623251-02 8 MW-4R L1623251-03 10 MW-5R L1623251-04 12 MW-11R L1623251-05 14 MW-12 L1623251-06 16 MW-13 L1623251-07 18 MW-16 L1623251-08 20 MW-17 L1623251-09 22 MW-18 L1623251-10 24 FB-1 L1623251-11 26 TRIP BLANK L1623251-12 28 Qc: Quality Control Summary 30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 30 Gl: Glossary of Terms 39 Al: Accreditations & Locations 40 Sc: Sample Chain of Custody 41 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 2 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 2 of 42 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-1R L1623251-01 GW Laura De Sousa 06/01/23 12:20 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 10 06/10/23 06:01 06/10/23 06:01 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2076167 50 06/13/23 04:45 06/13/23 04:45 ACG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-2R L1623251-02 GW Laura De Sousa 06/01/23 12:00 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 1 06/10/23 02:01 06/10/23 02:01 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-4R L1623251-03 GW Laura De Sousa 06/01/23 13:50 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 1 06/10/23 02:23 06/10/23 02:23 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-5R L1623251-04 GW Laura De Sousa 06/01/23 13:35 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 1 06/10/23 02:45 06/10/23 02:45 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-11R L1623251-05 GW Laura De Sousa 06/01/23 12:30 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2076167 10 06/13/23 05:04 06/13/23 05:04 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2076606 10 06/13/23 15:01 06/13/23 15:01 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-12 L1623251-06 GW Laura De Sousa 06/01/23 12:25 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 100 06/10/23 06:45 06/10/23 06:45 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time MW-13 L1623251-07 GW Laura De Sousa 06/01/23 12:10 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 1 06/10/23 03:07 06/10/23 03:07 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2076167 1 06/13/23 03:27 06/13/23 03:27 ACG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-16 L1623251-08 GW Laura De Sousa 06/01/23 14:15 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 200 06/10/23 07:06 06/10/23 07:06 JAH Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 3 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 3 of 42 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-17 L1623251-09 GW Laura De Sousa 06/01/23 14:05 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 1 06/10/23 03:28 06/10/23 03:28 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2076167 1 06/13/23 03:46 06/13/23 03:46 ACG Mt. Juliet, TN Collected by Collected date/time Received date/time MW-18 L1623251-10 GW Laura De Sousa 06/01/23 13:30 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 1 06/10/23 03:50 06/10/23 03:50 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time FB-1 L1623251-11 GW Laura De Sousa 06/01/23 13:55 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 1 06/10/23 01:18 06/10/23 01:18 JAH Mt. Juliet, TN Collected by Collected date/time Received date/time TRIP BLANK L1623251-12 GW Laura De Sousa 06/01/23 00:00 06/06/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG2074789 1 06/10/23 00:56 06/10/23 00:56 JAH Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 4 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 4 of 42 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Heather J Wagner Project Manager Project Narrative Method 6200: Sample MW-11R (L1623251-05) was re-analyzed for acetone and 2-butanone from a vial containing headspace. Sample Delivery Group (SDG) Narrative Analyzed from headspace vial. Lab Sample ID Project Sample ID Method L1623251-05 MW-11R 6200B-2011 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 5 of 42 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 5 of 42 SAMPLE RESULTS - 01 L1623251 MW-1R Collected date/time: 06/01/23 12:20 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 113 500 10 06/10/2023 06:01 WG2074789 Acrolein U 25.4 500 10 06/10/2023 06:01 WG2074789 Acrylonitrile U 6.71 100 10 06/10/2023 06:01 WG2074789 Benzene 556 0.941 10.0 10 06/10/2023 06:01 WG2074789 Bromobenzene U 1.18 10.0 10 06/10/2023 06:01 WG2074789 Bromodichloromethane U 1.36 10.0 10 06/10/2023 06:01 WG2074789 Bromoform U 1.29 10.0 10 06/10/2023 06:01 WG2074789 Bromomethane U 6.05 50.0 10 06/10/2023 06:01 WG2074789 n-Butylbenzene U 1.57 10.0 10 06/10/2023 06:01 WG2074789 sec-Butylbenzene 6.22 J 1.25 10.0 10 06/10/2023 06:01 WG2074789 tert-Butylbenzene U 1.27 10.0 10 06/10/2023 06:01 WG2074789 Carbon tetrachloride U 1.28 10.0 10 06/10/2023 06:01 WG2074789 Chlorobenzene U 1.16 10.0 10 06/10/2023 06:01 WG2074789 Chlorodibromomethane U 1.40 10.0 10 06/10/2023 06:01 WG2074789 Chloroethane U 1.92 50.0 10 06/10/2023 06:01 WG2074789 Chloroform U 1.11 50.0 10 06/10/2023 06:01 WG2074789 Chloromethane U 9.60 25.0 10 06/10/2023 06:01 WG2074789 2-Chlorotoluene U 1.06 10.0 10 06/10/2023 06:01 WG2074789 4-Chlorotoluene U 1.14 10.0 10 06/10/2023 06:01 WG2074789 1,2-Dibromo-3-Chloropropane U 2.76 50.0 10 06/10/2023 06:01 WG2074789 1,2-Dibromoethane U 1.26 10.0 10 06/10/2023 06:01 WG2074789 Dibromomethane U 1.22 10.0 10 06/10/2023 06:01 WG2074789 1,2-Dichlorobenzene U 1.07 10.0 10 06/10/2023 06:01 WG2074789 1,3-Dichlorobenzene U 1.10 10.0 10 06/10/2023 06:01 WG2074789 1,4-Dichlorobenzene U 1.20 10.0 10 06/10/2023 06:01 WG2074789 Dichlorodifluoromethane U 3.74 50.0 10 06/10/2023 06:01 WG2074789 1,1-Dichloroethane U 1.00 10.0 10 06/10/2023 06:01 WG2074789 1,2-Dichloroethane U 0.819 10.0 10 06/10/2023 06:01 WG2074789 1,1-Dichloroethene U J4 1.88 10.0 10 06/10/2023 06:01 WG2074789 cis-1,2-Dichloroethene U 1.26 10.0 10 06/10/2023 06:01 WG2074789 trans-1,2-Dichloroethene U J4 1.49 10.0 10 06/10/2023 06:01 WG2074789 1,2-Dichloropropane U 1.49 10.0 10 06/10/2023 06:01 WG2074789 1,1-Dichloropropene U 1.42 10.0 10 06/10/2023 06:01 WG2074789 1,3-Dichloropropane U 1.10 10.0 10 06/10/2023 06:01 WG2074789 2,2-Dichloropropane U 1.61 10.0 10 06/10/2023 06:01 WG2074789 Di-isopropyl ether 6.84 J 1.05 10.0 10 06/10/2023 06:01 WG2074789 Ethylbenzene 653 1.37 10.0 10 06/10/2023 06:01 WG2074789 Hexachloro-1,3-butadiene U 3.37 10.0 10 06/10/2023 06:01 WG2074789 Isopropylbenzene 34.6 1.05 10.0 10 06/10/2023 06:01 WG2074789 p-Isopropyltoluene U 1.20 10.0 10 06/10/2023 06:01 WG2074789 2-Butanone (MEK)U 11.9 100 10 06/10/2023 06:01 WG2074789 Methylene Chloride U 4.30 50.0 10 06/10/2023 06:01 WG2074789 4-Methyl-2-pentanone (MIBK)U 4.78 100 10 06/10/2023 06:01 WG2074789 Methyl tert-butyl ether 13.0 1.01 10.0 10 06/10/2023 06:01 WG2074789 Naphthalene 323 10.0 50.0 10 06/10/2023 06:01 WG2074789 n-Propylbenzene 85.3 0.993 10.0 10 06/10/2023 06:01 WG2074789 Styrene U 1.18 10.0 10 06/10/2023 06:01 WG2074789 1,1,1,2-Tetrachloroethane U 1.47 10.0 10 06/10/2023 06:01 WG2074789 1,1,2,2-Tetrachloroethane U 1.33 10.0 10 06/10/2023 06:01 WG2074789 Tetrachloroethene U 3.00 10.0 10 06/10/2023 06:01 WG2074789 Toluene 2400 13.9 50.0 50 06/13/2023 04:45 WG2076167 1,2,3-Trichlorobenzene U 2.30 10.0 10 06/10/2023 06:01 WG2074789 1,2,4-Trichlorobenzene U 4.81 10.0 10 06/10/2023 06:01 WG2074789 1,1,1-Trichloroethane U 1.49 10.0 10 06/10/2023 06:01 WG2074789 1,1,2-Trichloroethane U 1.58 10.0 10 06/10/2023 06:01 WG2074789 Trichloroethene U 1.90 10.0 10 06/10/2023 06:01 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 6 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 6 of 42 SAMPLE RESULTS - 01 L1623251 MW-1R Collected date/time: 06/01/23 12:20 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 1.60 50.0 10 06/10/2023 06:01 WG2074789 1,2,3-Trichloropropane U 2.37 25.0 10 06/10/2023 06:01 WG2074789 1,2,4-Trimethylbenzene 920 3.22 10.0 10 06/10/2023 06:01 WG2074789 1,3,5-Trimethylbenzene 248 1.04 10.0 10 06/10/2023 06:01 WG2074789 Vinyl chloride U 2.34 10.0 10 06/10/2023 06:01 WG2074789 o-Xylene 1190 1.74 10.0 10 06/10/2023 06:01 WG2074789 m&p-Xylenes 2740 4.30 20.0 10 06/10/2023 06:01 WG2074789 (S) Toluene-d8 98.7 80.0-120 06/10/2023 06:01 WG2074789 (S) Toluene-d8 99.9 80.0-120 06/13/2023 04:45 WG2076167 (S) 4-Bromofluorobenzene 116 77.0-126 06/10/2023 06:01 WG2074789 (S) 4-Bromofluorobenzene 94.9 77.0-126 06/13/2023 04:45 WG2076167 (S) 1,2-Dichloroethane-d4 91.4 70.0-130 06/10/2023 06:01 WG2074789 (S) 1,2-Dichloroethane-d4 95.5 70.0-130 06/13/2023 04:45 WG2076167 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 7 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 7 of 42 SAMPLE RESULTS - 02 L1623251 MW-2R Collected date/time: 06/01/23 12:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 06/10/2023 02:01 WG2074789 Acrolein U 2.54 50.0 1 06/10/2023 02:01 WG2074789 Acrylonitrile U 0.671 10.0 1 06/10/2023 02:01 WG2074789 Benzene U 0.0941 1.00 1 06/10/2023 02:01 WG2074789 Bromobenzene U 0.118 1.00 1 06/10/2023 02:01 WG2074789 Bromodichloromethane U 0.136 1.00 1 06/10/2023 02:01 WG2074789 Bromoform U 0.129 1.00 1 06/10/2023 02:01 WG2074789 Bromomethane U 0.605 5.00 1 06/10/2023 02:01 WG2074789 n-Butylbenzene U 0.157 1.00 1 06/10/2023 02:01 WG2074789 sec-Butylbenzene U 0.125 1.00 1 06/10/2023 02:01 WG2074789 tert-Butylbenzene U 0.127 1.00 1 06/10/2023 02:01 WG2074789 Carbon tetrachloride U 0.128 1.00 1 06/10/2023 02:01 WG2074789 Chlorobenzene U 0.116 1.00 1 06/10/2023 02:01 WG2074789 Chlorodibromomethane U 0.140 1.00 1 06/10/2023 02:01 WG2074789 Chloroethane U 0.192 5.00 1 06/10/2023 02:01 WG2074789 Chloroform U 0.111 5.00 1 06/10/2023 02:01 WG2074789 Chloromethane U 0.960 2.50 1 06/10/2023 02:01 WG2074789 2-Chlorotoluene U 0.106 1.00 1 06/10/2023 02:01 WG2074789 4-Chlorotoluene U 0.114 1.00 1 06/10/2023 02:01 WG2074789 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 06/10/2023 02:01 WG2074789 1,2-Dibromoethane U 0.126 1.00 1 06/10/2023 02:01 WG2074789 Dibromomethane U 0.122 1.00 1 06/10/2023 02:01 WG2074789 1,2-Dichlorobenzene U 0.107 1.00 1 06/10/2023 02:01 WG2074789 1,3-Dichlorobenzene U 0.110 1.00 1 06/10/2023 02:01 WG2074789 1,4-Dichlorobenzene U 0.120 1.00 1 06/10/2023 02:01 WG2074789 Dichlorodifluoromethane U 0.374 5.00 1 06/10/2023 02:01 WG2074789 1,1-Dichloroethane U 0.100 1.00 1 06/10/2023 02:01 WG2074789 1,2-Dichloroethane U 0.0819 1.00 1 06/10/2023 02:01 WG2074789 1,1-Dichloroethene U J4 0.188 1.00 1 06/10/2023 02:01 WG2074789 cis-1,2-Dichloroethene U 0.126 1.00 1 06/10/2023 02:01 WG2074789 trans-1,2-Dichloroethene U J4 0.149 1.00 1 06/10/2023 02:01 WG2074789 1,2-Dichloropropane U 0.149 1.00 1 06/10/2023 02:01 WG2074789 1,1-Dichloropropene U 0.142 1.00 1 06/10/2023 02:01 WG2074789 1,3-Dichloropropane U 0.110 1.00 1 06/10/2023 02:01 WG2074789 2,2-Dichloropropane U 0.161 1.00 1 06/10/2023 02:01 WG2074789 Di-isopropyl ether U 0.105 1.00 1 06/10/2023 02:01 WG2074789 Ethylbenzene U 0.137 1.00 1 06/10/2023 02:01 WG2074789 Hexachloro-1,3-butadiene U 0.337 1.00 1 06/10/2023 02:01 WG2074789 Isopropylbenzene U 0.105 1.00 1 06/10/2023 02:01 WG2074789 p-Isopropyltoluene U 0.120 1.00 1 06/10/2023 02:01 WG2074789 2-Butanone (MEK)U 1.19 10.0 1 06/10/2023 02:01 WG2074789 Methylene Chloride U 0.430 5.00 1 06/10/2023 02:01 WG2074789 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 06/10/2023 02:01 WG2074789 Methyl tert-butyl ether U 0.101 1.00 1 06/10/2023 02:01 WG2074789 Naphthalene U 1.00 5.00 1 06/10/2023 02:01 WG2074789 n-Propylbenzene U 0.0993 1.00 1 06/10/2023 02:01 WG2074789 Styrene U 0.118 1.00 1 06/10/2023 02:01 WG2074789 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 06/10/2023 02:01 WG2074789 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 06/10/2023 02:01 WG2074789 Tetrachloroethene U 0.300 1.00 1 06/10/2023 02:01 WG2074789 Toluene 0.320 J 0.278 1.00 1 06/10/2023 02:01 WG2074789 1,2,3-Trichlorobenzene U 0.230 1.00 1 06/10/2023 02:01 WG2074789 1,2,4-Trichlorobenzene U 0.481 1.00 1 06/10/2023 02:01 WG2074789 1,1,1-Trichloroethane U 0.149 1.00 1 06/10/2023 02:01 WG2074789 1,1,2-Trichloroethane U 0.158 1.00 1 06/10/2023 02:01 WG2074789 Trichloroethene U 0.190 1.00 1 06/10/2023 02:01 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 8 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 8 of 42 SAMPLE RESULTS - 02 L1623251 MW-2R Collected date/time: 06/01/23 12:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 06/10/2023 02:01 WG2074789 1,2,3-Trichloropropane U 0.237 2.50 1 06/10/2023 02:01 WG2074789 1,2,4-Trimethylbenzene U 0.322 1.00 1 06/10/2023 02:01 WG2074789 1,3,5-Trimethylbenzene U 0.104 1.00 1 06/10/2023 02:01 WG2074789 Vinyl chloride U 0.234 1.00 1 06/10/2023 02:01 WG2074789 o-Xylene U 0.174 1.00 1 06/10/2023 02:01 WG2074789 m&p-Xylenes U 0.430 2.00 1 06/10/2023 02:01 WG2074789 (S) Toluene-d8 104 80.0-120 06/10/2023 02:01 WG2074789 (S) 4-Bromofluorobenzene 110 77.0-126 06/10/2023 02:01 WG2074789 (S) 1,2-Dichloroethane-d4 95.8 70.0-130 06/10/2023 02:01 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 9 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 9 of 42 SAMPLE RESULTS - 03 L1623251 MW-4R Collected date/time: 06/01/23 13:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 06/10/2023 02:23 WG2074789 Acrolein U 2.54 50.0 1 06/10/2023 02:23 WG2074789 Acrylonitrile U 0.671 10.0 1 06/10/2023 02:23 WG2074789 Benzene 65.7 0.0941 1.00 1 06/10/2023 02:23 WG2074789 Bromobenzene U 0.118 1.00 1 06/10/2023 02:23 WG2074789 Bromodichloromethane U 0.136 1.00 1 06/10/2023 02:23 WG2074789 Bromoform U 0.129 1.00 1 06/10/2023 02:23 WG2074789 Bromomethane U 0.605 5.00 1 06/10/2023 02:23 WG2074789 n-Butylbenzene 3.57 0.157 1.00 1 06/10/2023 02:23 WG2074789 sec-Butylbenzene 1.29 0.125 1.00 1 06/10/2023 02:23 WG2074789 tert-Butylbenzene U 0.127 1.00 1 06/10/2023 02:23 WG2074789 Carbon tetrachloride U 0.128 1.00 1 06/10/2023 02:23 WG2074789 Chlorobenzene U 0.116 1.00 1 06/10/2023 02:23 WG2074789 Chlorodibromomethane U 0.140 1.00 1 06/10/2023 02:23 WG2074789 Chloroethane U 0.192 5.00 1 06/10/2023 02:23 WG2074789 Chloroform U 0.111 5.00 1 06/10/2023 02:23 WG2074789 Chloromethane U 0.960 2.50 1 06/10/2023 02:23 WG2074789 2-Chlorotoluene U 0.106 1.00 1 06/10/2023 02:23 WG2074789 4-Chlorotoluene U 0.114 1.00 1 06/10/2023 02:23 WG2074789 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 06/10/2023 02:23 WG2074789 1,2-Dibromoethane U 0.126 1.00 1 06/10/2023 02:23 WG2074789 Dibromomethane U 0.122 1.00 1 06/10/2023 02:23 WG2074789 1,2-Dichlorobenzene U 0.107 1.00 1 06/10/2023 02:23 WG2074789 1,3-Dichlorobenzene U 0.110 1.00 1 06/10/2023 02:23 WG2074789 1,4-Dichlorobenzene U 0.120 1.00 1 06/10/2023 02:23 WG2074789 Dichlorodifluoromethane U 0.374 5.00 1 06/10/2023 02:23 WG2074789 1,1-Dichloroethane U 0.100 1.00 1 06/10/2023 02:23 WG2074789 1,2-Dichloroethane 0.933 J 0.0819 1.00 1 06/10/2023 02:23 WG2074789 1,1-Dichloroethene U J4 0.188 1.00 1 06/10/2023 02:23 WG2074789 cis-1,2-Dichloroethene U 0.126 1.00 1 06/10/2023 02:23 WG2074789 trans-1,2-Dichloroethene U J4 0.149 1.00 1 06/10/2023 02:23 WG2074789 1,2-Dichloropropane U 0.149 1.00 1 06/10/2023 02:23 WG2074789 1,1-Dichloropropene U 0.142 1.00 1 06/10/2023 02:23 WG2074789 1,3-Dichloropropane U 0.110 1.00 1 06/10/2023 02:23 WG2074789 2,2-Dichloropropane U 0.161 1.00 1 06/10/2023 02:23 WG2074789 Di-isopropyl ether 1.70 0.105 1.00 1 06/10/2023 02:23 WG2074789 Ethylbenzene 20.0 0.137 1.00 1 06/10/2023 02:23 WG2074789 Hexachloro-1,3-butadiene U 0.337 1.00 1 06/10/2023 02:23 WG2074789 Isopropylbenzene 11.1 0.105 1.00 1 06/10/2023 02:23 WG2074789 p-Isopropyltoluene 0.970 J 0.120 1.00 1 06/10/2023 02:23 WG2074789 2-Butanone (MEK)U 1.19 10.0 1 06/10/2023 02:23 WG2074789 Methylene Chloride U 0.430 5.00 1 06/10/2023 02:23 WG2074789 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 06/10/2023 02:23 WG2074789 Methyl tert-butyl ether 1.93 0.101 1.00 1 06/10/2023 02:23 WG2074789 Naphthalene 78.2 1.00 5.00 1 06/10/2023 02:23 WG2074789 n-Propylbenzene 10.5 0.0993 1.00 1 06/10/2023 02:23 WG2074789 Styrene 0.514 J 0.118 1.00 1 06/10/2023 02:23 WG2074789 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 06/10/2023 02:23 WG2074789 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 06/10/2023 02:23 WG2074789 Tetrachloroethene U 0.300 1.00 1 06/10/2023 02:23 WG2074789 Toluene 1.47 0.278 1.00 1 06/10/2023 02:23 WG2074789 1,2,3-Trichlorobenzene U 0.230 1.00 1 06/10/2023 02:23 WG2074789 1,2,4-Trichlorobenzene U 0.481 1.00 1 06/10/2023 02:23 WG2074789 1,1,1-Trichloroethane U 0.149 1.00 1 06/10/2023 02:23 WG2074789 1,1,2-Trichloroethane U 0.158 1.00 1 06/10/2023 02:23 WG2074789 Trichloroethene U 0.190 1.00 1 06/10/2023 02:23 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 10 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 10 of 42 SAMPLE RESULTS - 03 L1623251 MW-4R Collected date/time: 06/01/23 13:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 06/10/2023 02:23 WG2074789 1,2,3-Trichloropropane U 0.237 2.50 1 06/10/2023 02:23 WG2074789 1,2,4-Trimethylbenzene U 0.322 1.00 1 06/10/2023 02:23 WG2074789 1,3,5-Trimethylbenzene 1.19 0.104 1.00 1 06/10/2023 02:23 WG2074789 Vinyl chloride U 0.234 1.00 1 06/10/2023 02:23 WG2074789 o-Xylene 0.495 J 0.174 1.00 1 06/10/2023 02:23 WG2074789 m&p-Xylenes 1.31 J 0.430 2.00 1 06/10/2023 02:23 WG2074789 (S) Toluene-d8 104 80.0-120 06/10/2023 02:23 WG2074789 (S) 4-Bromofluorobenzene 112 77.0-126 06/10/2023 02:23 WG2074789 (S) 1,2-Dichloroethane-d4 89.8 70.0-130 06/10/2023 02:23 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 11 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 11 of 42 SAMPLE RESULTS - 04 L1623251 MW-5R Collected date/time: 06/01/23 13:35 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 06/10/2023 02:45 WG2074789 Acrolein U 2.54 50.0 1 06/10/2023 02:45 WG2074789 Acrylonitrile U 0.671 10.0 1 06/10/2023 02:45 WG2074789 Benzene 32.1 0.0941 1.00 1 06/10/2023 02:45 WG2074789 Bromobenzene U 0.118 1.00 1 06/10/2023 02:45 WG2074789 Bromodichloromethane U 0.136 1.00 1 06/10/2023 02:45 WG2074789 Bromoform U 0.129 1.00 1 06/10/2023 02:45 WG2074789 Bromomethane U 0.605 5.00 1 06/10/2023 02:45 WG2074789 n-Butylbenzene 1.11 0.157 1.00 1 06/10/2023 02:45 WG2074789 sec-Butylbenzene 0.581 J 0.125 1.00 1 06/10/2023 02:45 WG2074789 tert-Butylbenzene U 0.127 1.00 1 06/10/2023 02:45 WG2074789 Carbon tetrachloride U 0.128 1.00 1 06/10/2023 02:45 WG2074789 Chlorobenzene U 0.116 1.00 1 06/10/2023 02:45 WG2074789 Chlorodibromomethane U 0.140 1.00 1 06/10/2023 02:45 WG2074789 Chloroethane U 0.192 5.00 1 06/10/2023 02:45 WG2074789 Chloroform U 0.111 5.00 1 06/10/2023 02:45 WG2074789 Chloromethane 1.19 J 0.960 2.50 1 06/10/2023 02:45 WG2074789 2-Chlorotoluene U 0.106 1.00 1 06/10/2023 02:45 WG2074789 4-Chlorotoluene U 0.114 1.00 1 06/10/2023 02:45 WG2074789 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 06/10/2023 02:45 WG2074789 1,2-Dibromoethane U 0.126 1.00 1 06/10/2023 02:45 WG2074789 Dibromomethane U 0.122 1.00 1 06/10/2023 02:45 WG2074789 1,2-Dichlorobenzene U 0.107 1.00 1 06/10/2023 02:45 WG2074789 1,3-Dichlorobenzene U 0.110 1.00 1 06/10/2023 02:45 WG2074789 1,4-Dichlorobenzene U 0.120 1.00 1 06/10/2023 02:45 WG2074789 Dichlorodifluoromethane U 0.374 5.00 1 06/10/2023 02:45 WG2074789 1,1-Dichloroethane U 0.100 1.00 1 06/10/2023 02:45 WG2074789 1,2-Dichloroethane U 0.0819 1.00 1 06/10/2023 02:45 WG2074789 1,1-Dichloroethene U J4 0.188 1.00 1 06/10/2023 02:45 WG2074789 cis-1,2-Dichloroethene U 0.126 1.00 1 06/10/2023 02:45 WG2074789 trans-1,2-Dichloroethene U J4 0.149 1.00 1 06/10/2023 02:45 WG2074789 1,2-Dichloropropane U 0.149 1.00 1 06/10/2023 02:45 WG2074789 1,1-Dichloropropene U 0.142 1.00 1 06/10/2023 02:45 WG2074789 1,3-Dichloropropane U 0.110 1.00 1 06/10/2023 02:45 WG2074789 2,2-Dichloropropane U 0.161 1.00 1 06/10/2023 02:45 WG2074789 Di-isopropyl ether U 0.105 1.00 1 06/10/2023 02:45 WG2074789 Ethylbenzene 2.55 0.137 1.00 1 06/10/2023 02:45 WG2074789 Hexachloro-1,3-butadiene U 0.337 1.00 1 06/10/2023 02:45 WG2074789 Isopropylbenzene 3.62 0.105 1.00 1 06/10/2023 02:45 WG2074789 p-Isopropyltoluene 0.476 J 0.120 1.00 1 06/10/2023 02:45 WG2074789 2-Butanone (MEK)U 1.19 10.0 1 06/10/2023 02:45 WG2074789 Methylene Chloride U 0.430 5.00 1 06/10/2023 02:45 WG2074789 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 06/10/2023 02:45 WG2074789 Methyl tert-butyl ether U 0.101 1.00 1 06/10/2023 02:45 WG2074789 Naphthalene 50.5 1.00 5.00 1 06/10/2023 02:45 WG2074789 n-Propylbenzene 1.70 0.0993 1.00 1 06/10/2023 02:45 WG2074789 Styrene U 0.118 1.00 1 06/10/2023 02:45 WG2074789 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 06/10/2023 02:45 WG2074789 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 06/10/2023 02:45 WG2074789 Tetrachloroethene U 0.300 1.00 1 06/10/2023 02:45 WG2074789 Toluene 1.71 0.278 1.00 1 06/10/2023 02:45 WG2074789 1,2,3-Trichlorobenzene U 0.230 1.00 1 06/10/2023 02:45 WG2074789 1,2,4-Trichlorobenzene U 0.481 1.00 1 06/10/2023 02:45 WG2074789 1,1,1-Trichloroethane U 0.149 1.00 1 06/10/2023 02:45 WG2074789 1,1,2-Trichloroethane U 0.158 1.00 1 06/10/2023 02:45 WG2074789 Trichloroethene U 0.190 1.00 1 06/10/2023 02:45 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 12 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 12 of 42 SAMPLE RESULTS - 04 L1623251 MW-5R Collected date/time: 06/01/23 13:35 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 06/10/2023 02:45 WG2074789 1,2,3-Trichloropropane U 0.237 2.50 1 06/10/2023 02:45 WG2074789 1,2,4-Trimethylbenzene U 0.322 1.00 1 06/10/2023 02:45 WG2074789 1,3,5-Trimethylbenzene 0.357 J 0.104 1.00 1 06/10/2023 02:45 WG2074789 Vinyl chloride U 0.234 1.00 1 06/10/2023 02:45 WG2074789 o-Xylene 0.887 J 0.174 1.00 1 06/10/2023 02:45 WG2074789 m&p-Xylenes 1.08 J 0.430 2.00 1 06/10/2023 02:45 WG2074789 (S) Toluene-d8 101 80.0-120 06/10/2023 02:45 WG2074789 (S) 4-Bromofluorobenzene 111 77.0-126 06/10/2023 02:45 WG2074789 (S) 1,2-Dichloroethane-d4 97.0 70.0-130 06/10/2023 02:45 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 13 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 13 of 42 SAMPLE RESULTS - 05 L1623251 MW-11R Collected date/time: 06/01/23 12:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 113 500 10 06/13/2023 15:01 WG2076606 Acrolein U 25.4 500 10 06/13/2023 05:04 WG2076167 Acrylonitrile U 6.71 100 10 06/13/2023 05:04 WG2076167 Benzene 333 0.941 10.0 10 06/13/2023 05:04 WG2076167 Bromobenzene U 1.18 10.0 10 06/13/2023 05:04 WG2076167 Bromodichloromethane U 1.36 10.0 10 06/13/2023 05:04 WG2076167 Bromoform U 1.29 10.0 10 06/13/2023 05:04 WG2076167 Bromomethane U 6.05 50.0 10 06/13/2023 05:04 WG2076167 n-Butylbenzene U 1.57 10.0 10 06/13/2023 05:04 WG2076167 sec-Butylbenzene 6.15 J 1.25 10.0 10 06/13/2023 05:04 WG2076167 tert-Butylbenzene U 1.27 10.0 10 06/13/2023 05:04 WG2076167 Carbon tetrachloride U 1.28 10.0 10 06/13/2023 05:04 WG2076167 Chlorobenzene U 1.16 10.0 10 06/13/2023 05:04 WG2076167 Chlorodibromomethane U 1.40 10.0 10 06/13/2023 05:04 WG2076167 Chloroethane U 1.92 50.0 10 06/13/2023 05:04 WG2076167 Chloroform U 1.11 50.0 10 06/13/2023 05:04 WG2076167 Chloromethane U 9.60 25.0 10 06/13/2023 05:04 WG2076167 2-Chlorotoluene U 1.06 10.0 10 06/13/2023 05:04 WG2076167 4-Chlorotoluene U 1.14 10.0 10 06/13/2023 05:04 WG2076167 1,2-Dibromo-3-Chloropropane U 2.76 50.0 10 06/13/2023 05:04 WG2076167 1,2-Dibromoethane U 1.26 10.0 10 06/13/2023 05:04 WG2076167 Dibromomethane U 1.22 10.0 10 06/13/2023 05:04 WG2076167 1,2-Dichlorobenzene U 1.07 10.0 10 06/13/2023 05:04 WG2076167 1,3-Dichlorobenzene U 1.10 10.0 10 06/13/2023 05:04 WG2076167 1,4-Dichlorobenzene U 1.20 10.0 10 06/13/2023 05:04 WG2076167 Dichlorodifluoromethane U 3.74 50.0 10 06/13/2023 05:04 WG2076167 1,1-Dichloroethane U 1.00 10.0 10 06/13/2023 05:04 WG2076167 1,2-Dichloroethane U 0.819 10.0 10 06/13/2023 05:04 WG2076167 1,1-Dichloroethene U 1.88 10.0 10 06/13/2023 05:04 WG2076167 cis-1,2-Dichloroethene U 1.26 10.0 10 06/13/2023 05:04 WG2076167 trans-1,2-Dichloroethene U 1.49 10.0 10 06/13/2023 05:04 WG2076167 1,2-Dichloropropane U 1.49 10.0 10 06/13/2023 05:04 WG2076167 1,1-Dichloropropene U 1.42 10.0 10 06/13/2023 05:04 WG2076167 1,3-Dichloropropane U 1.10 10.0 10 06/13/2023 05:04 WG2076167 2,2-Dichloropropane U 1.61 10.0 10 06/13/2023 05:04 WG2076167 Di-isopropyl ether 24.5 1.05 10.0 10 06/13/2023 05:04 WG2076167 Ethylbenzene 242 1.37 10.0 10 06/13/2023 05:04 WG2076167 Hexachloro-1,3-butadiene U 3.37 10.0 10 06/13/2023 05:04 WG2076167 Isopropylbenzene 20.3 1.05 10.0 10 06/13/2023 05:04 WG2076167 p-Isopropyltoluene 5.55 J 1.20 10.0 10 06/13/2023 05:04 WG2076167 2-Butanone (MEK)16.5 J 11.9 100 10 06/13/2023 15:01 WG2076606 Methylene Chloride U 4.30 50.0 10 06/13/2023 05:04 WG2076167 4-Methyl-2-pentanone (MIBK)18.1 J 4.78 100 10 06/13/2023 05:04 WG2076167 Methyl tert-butyl ether 40.4 1.01 10.0 10 06/13/2023 05:04 WG2076167 Naphthalene 244 10.0 50.0 10 06/13/2023 05:04 WG2076167 n-Propylbenzene 64.6 0.993 10.0 10 06/13/2023 05:04 WG2076167 Styrene U 1.18 10.0 10 06/13/2023 05:04 WG2076167 1,1,1,2-Tetrachloroethane U 1.47 10.0 10 06/13/2023 05:04 WG2076167 1,1,2,2-Tetrachloroethane U 1.33 10.0 10 06/13/2023 05:04 WG2076167 Tetrachloroethene U 3.00 10.0 10 06/13/2023 05:04 WG2076167 Toluene 29.9 2.78 10.0 10 06/13/2023 05:04 WG2076167 1,2,3-Trichlorobenzene U 2.30 10.0 10 06/13/2023 05:04 WG2076167 1,2,4-Trichlorobenzene U 4.81 10.0 10 06/13/2023 05:04 WG2076167 1,1,1-Trichloroethane U 1.49 10.0 10 06/13/2023 05:04 WG2076167 1,1,2-Trichloroethane U 1.58 10.0 10 06/13/2023 05:04 WG2076167 Trichloroethene U 1.90 10.0 10 06/13/2023 05:04 WG2076167 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 14 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 14 of 42 SAMPLE RESULTS - 05 L1623251 MW-11R Collected date/time: 06/01/23 12:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 1.60 50.0 10 06/13/2023 05:04 WG2076167 1,2,3-Trichloropropane U 2.37 25.0 10 06/13/2023 05:04 WG2076167 1,2,4-Trimethylbenzene 809 3.22 10.0 10 06/13/2023 05:04 WG2076167 1,3,5-Trimethylbenzene 280 1.04 10.0 10 06/13/2023 05:04 WG2076167 Vinyl chloride U 2.34 10.0 10 06/13/2023 05:04 WG2076167 o-Xylene 267 1.74 10.0 10 06/13/2023 05:04 WG2076167 m&p-Xylenes 1100 4.30 20.0 10 06/13/2023 05:04 WG2076167 (S) Toluene-d8 99.4 80.0-120 06/13/2023 05:04 WG2076167 (S) Toluene-d8 97.9 80.0-120 06/13/2023 15:01 WG2076606 (S) 4-Bromofluorobenzene 96.3 77.0-126 06/13/2023 05:04 WG2076167 (S) 4-Bromofluorobenzene 106 77.0-126 06/13/2023 15:01 WG2076606 (S) 1,2-Dichloroethane-d4 98.0 70.0-130 06/13/2023 05:04 WG2076167 (S) 1,2-Dichloroethane-d4 113 70.0-130 06/13/2023 15:01 WG2076606 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 15 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 15 of 42 SAMPLE RESULTS - 06 L1623251 MW-12 Collected date/time: 06/01/23 12:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 1130 5000 100 06/10/2023 06:45 WG2074789 Acrolein U 254 5000 100 06/10/2023 06:45 WG2074789 Acrylonitrile U 67.1 1000 100 06/10/2023 06:45 WG2074789 Benzene 1450 9.41 100 100 06/10/2023 06:45 WG2074789 Bromobenzene U 11.8 100 100 06/10/2023 06:45 WG2074789 Bromodichloromethane U 13.6 100 100 06/10/2023 06:45 WG2074789 Bromoform U 12.9 100 100 06/10/2023 06:45 WG2074789 Bromomethane U 60.5 500 100 06/10/2023 06:45 WG2074789 n-Butylbenzene U 15.7 100 100 06/10/2023 06:45 WG2074789 sec-Butylbenzene U 12.5 100 100 06/10/2023 06:45 WG2074789 tert-Butylbenzene U 12.7 100 100 06/10/2023 06:45 WG2074789 Carbon tetrachloride U 12.8 100 100 06/10/2023 06:45 WG2074789 Chlorobenzene U 11.6 100 100 06/10/2023 06:45 WG2074789 Chlorodibromomethane U 14.0 100 100 06/10/2023 06:45 WG2074789 Chloroethane U 19.2 500 100 06/10/2023 06:45 WG2074789 Chloroform U 11.1 500 100 06/10/2023 06:45 WG2074789 Chloromethane U 96.0 250 100 06/10/2023 06:45 WG2074789 2-Chlorotoluene U 10.6 100 100 06/10/2023 06:45 WG2074789 4-Chlorotoluene U 11.4 100 100 06/10/2023 06:45 WG2074789 1,2-Dibromo-3-Chloropropane U 27.6 500 100 06/10/2023 06:45 WG2074789 1,2-Dibromoethane U 12.6 100 100 06/10/2023 06:45 WG2074789 Dibromomethane U 12.2 100 100 06/10/2023 06:45 WG2074789 1,2-Dichlorobenzene U 10.7 100 100 06/10/2023 06:45 WG2074789 1,3-Dichlorobenzene U 11.0 100 100 06/10/2023 06:45 WG2074789 1,4-Dichlorobenzene U 12.0 100 100 06/10/2023 06:45 WG2074789 Dichlorodifluoromethane U 37.4 500 100 06/10/2023 06:45 WG2074789 1,1-Dichloroethane U 10.0 100 100 06/10/2023 06:45 WG2074789 1,2-Dichloroethane 76.0 J 8.19 100 100 06/10/2023 06:45 WG2074789 1,1-Dichloroethene U J4 18.8 100 100 06/10/2023 06:45 WG2074789 cis-1,2-Dichloroethene U 12.6 100 100 06/10/2023 06:45 WG2074789 trans-1,2-Dichloroethene U J4 14.9 100 100 06/10/2023 06:45 WG2074789 1,2-Dichloropropane U 14.9 100 100 06/10/2023 06:45 WG2074789 1,1-Dichloropropene U 14.2 100 100 06/10/2023 06:45 WG2074789 1,3-Dichloropropane U 11.0 100 100 06/10/2023 06:45 WG2074789 2,2-Dichloropropane U 16.1 100 100 06/10/2023 06:45 WG2074789 Di-isopropyl ether 109 10.5 100 100 06/10/2023 06:45 WG2074789 Ethylbenzene 1860 13.7 100 100 06/10/2023 06:45 WG2074789 Hexachloro-1,3-butadiene U 33.7 100 100 06/10/2023 06:45 WG2074789 Isopropylbenzene 63.9 J 10.5 100 100 06/10/2023 06:45 WG2074789 p-Isopropyltoluene U 12.0 100 100 06/10/2023 06:45 WG2074789 2-Butanone (MEK)U 119 1000 100 06/10/2023 06:45 WG2074789 Methylene Chloride U 43.0 500 100 06/10/2023 06:45 WG2074789 4-Methyl-2-pentanone (MIBK)U 47.8 1000 100 06/10/2023 06:45 WG2074789 Methyl tert-butyl ether 254 10.1 100 100 06/10/2023 06:45 WG2074789 Naphthalene 674 100 500 100 06/10/2023 06:45 WG2074789 n-Propylbenzene 191 9.93 100 100 06/10/2023 06:45 WG2074789 Styrene U 11.8 100 100 06/10/2023 06:45 WG2074789 1,1,1,2-Tetrachloroethane U 14.7 100 100 06/10/2023 06:45 WG2074789 1,1,2,2-Tetrachloroethane U 13.3 100 100 06/10/2023 06:45 WG2074789 Tetrachloroethene U 30.0 100 100 06/10/2023 06:45 WG2074789 Toluene 4970 27.8 100 100 06/10/2023 06:45 WG2074789 1,2,3-Trichlorobenzene U 23.0 100 100 06/10/2023 06:45 WG2074789 1,2,4-Trichlorobenzene U 48.1 100 100 06/10/2023 06:45 WG2074789 1,1,1-Trichloroethane U 14.9 100 100 06/10/2023 06:45 WG2074789 1,1,2-Trichloroethane U 15.8 100 100 06/10/2023 06:45 WG2074789 Trichloroethene U 19.0 100 100 06/10/2023 06:45 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 16 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 16 of 42 SAMPLE RESULTS - 06 L1623251 MW-12 Collected date/time: 06/01/23 12:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 16.0 500 100 06/10/2023 06:45 WG2074789 1,2,3-Trichloropropane U 23.7 250 100 06/10/2023 06:45 WG2074789 1,2,4-Trimethylbenzene 1750 32.2 100 100 06/10/2023 06:45 WG2074789 1,3,5-Trimethylbenzene 428 10.4 100 100 06/10/2023 06:45 WG2074789 Vinyl chloride U 23.4 100 100 06/10/2023 06:45 WG2074789 o-Xylene 2920 17.4 100 100 06/10/2023 06:45 WG2074789 m&p-Xylenes 6960 43.0 200 100 06/10/2023 06:45 WG2074789 (S) Toluene-d8 100 80.0-120 06/10/2023 06:45 WG2074789 (S) 4-Bromofluorobenzene 109 77.0-126 06/10/2023 06:45 WG2074789 (S) 1,2-Dichloroethane-d4 95.5 70.0-130 06/10/2023 06:45 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 17 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 17 of 42 SAMPLE RESULTS - 07 L1623251 MW-13 Collected date/time: 06/01/23 12:10 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 06/10/2023 03:07 WG2074789 Acrolein U 2.54 50.0 1 06/10/2023 03:07 WG2074789 Acrylonitrile U 0.671 10.0 1 06/10/2023 03:07 WG2074789 Benzene U 0.0941 1.00 1 06/10/2023 03:07 WG2074789 Bromobenzene U 0.118 1.00 1 06/10/2023 03:07 WG2074789 Bromodichloromethane U 0.136 1.00 1 06/10/2023 03:07 WG2074789 Bromoform U 0.129 1.00 1 06/10/2023 03:07 WG2074789 Bromomethane U 0.605 5.00 1 06/10/2023 03:07 WG2074789 n-Butylbenzene U 0.157 1.00 1 06/10/2023 03:07 WG2074789 sec-Butylbenzene U 0.125 1.00 1 06/10/2023 03:07 WG2074789 tert-Butylbenzene U 0.127 1.00 1 06/10/2023 03:07 WG2074789 Carbon tetrachloride U 0.128 1.00 1 06/10/2023 03:07 WG2074789 Chlorobenzene U 0.116 1.00 1 06/10/2023 03:07 WG2074789 Chlorodibromomethane U 0.140 1.00 1 06/10/2023 03:07 WG2074789 Chloroethane U 0.192 5.00 1 06/10/2023 03:07 WG2074789 Chloroform U 0.111 5.00 1 06/10/2023 03:07 WG2074789 Chloromethane U 0.960 2.50 1 06/10/2023 03:07 WG2074789 2-Chlorotoluene U 0.106 1.00 1 06/10/2023 03:07 WG2074789 4-Chlorotoluene U 0.114 1.00 1 06/10/2023 03:07 WG2074789 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 06/10/2023 03:07 WG2074789 1,2-Dibromoethane U 0.126 1.00 1 06/10/2023 03:07 WG2074789 Dibromomethane U 0.122 1.00 1 06/10/2023 03:07 WG2074789 1,2-Dichlorobenzene U 0.107 1.00 1 06/10/2023 03:07 WG2074789 1,3-Dichlorobenzene U 0.110 1.00 1 06/10/2023 03:07 WG2074789 1,4-Dichlorobenzene U 0.120 1.00 1 06/10/2023 03:07 WG2074789 Dichlorodifluoromethane U 0.374 5.00 1 06/10/2023 03:07 WG2074789 1,1-Dichloroethane U 0.100 1.00 1 06/10/2023 03:07 WG2074789 1,2-Dichloroethane U 0.0819 1.00 1 06/10/2023 03:07 WG2074789 1,1-Dichloroethene U J4 0.188 1.00 1 06/10/2023 03:07 WG2074789 cis-1,2-Dichloroethene U 0.126 1.00 1 06/10/2023 03:07 WG2074789 trans-1,2-Dichloroethene U J4 0.149 1.00 1 06/10/2023 03:07 WG2074789 1,2-Dichloropropane U 0.149 1.00 1 06/10/2023 03:07 WG2074789 1,1-Dichloropropene U 0.142 1.00 1 06/10/2023 03:07 WG2074789 1,3-Dichloropropane U 0.110 1.00 1 06/10/2023 03:07 WG2074789 2,2-Dichloropropane U 0.161 1.00 1 06/10/2023 03:07 WG2074789 Di-isopropyl ether U 0.105 1.00 1 06/10/2023 03:07 WG2074789 Ethylbenzene U 0.137 1.00 1 06/10/2023 03:07 WG2074789 Hexachloro-1,3-butadiene U 0.337 1.00 1 06/10/2023 03:07 WG2074789 Isopropylbenzene U 0.105 1.00 1 06/10/2023 03:07 WG2074789 p-Isopropyltoluene U 0.120 1.00 1 06/10/2023 03:07 WG2074789 2-Butanone (MEK)U 1.19 10.0 1 06/10/2023 03:07 WG2074789 Methylene Chloride U 0.430 5.00 1 06/10/2023 03:07 WG2074789 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 06/10/2023 03:07 WG2074789 Methyl tert-butyl ether U 0.101 1.00 1 06/10/2023 03:07 WG2074789 Naphthalene U 1.00 5.00 1 06/13/2023 03:27 WG2076167 n-Propylbenzene U 0.0993 1.00 1 06/10/2023 03:07 WG2074789 Styrene U 0.118 1.00 1 06/10/2023 03:07 WG2074789 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 06/10/2023 03:07 WG2074789 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 06/10/2023 03:07 WG2074789 Tetrachloroethene U 0.300 1.00 1 06/10/2023 03:07 WG2074789 Toluene U 0.278 1.00 1 06/10/2023 03:07 WG2074789 1,2,3-Trichlorobenzene U 0.230 1.00 1 06/10/2023 03:07 WG2074789 1,2,4-Trichlorobenzene U 0.481 1.00 1 06/10/2023 03:07 WG2074789 1,1,1-Trichloroethane U 0.149 1.00 1 06/10/2023 03:07 WG2074789 1,1,2-Trichloroethane U 0.158 1.00 1 06/10/2023 03:07 WG2074789 Trichloroethene U 0.190 1.00 1 06/10/2023 03:07 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 18 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 18 of 42 SAMPLE RESULTS - 07 L1623251 MW-13 Collected date/time: 06/01/23 12:10 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 06/10/2023 03:07 WG2074789 1,2,3-Trichloropropane U 0.237 2.50 1 06/10/2023 03:07 WG2074789 1,2,4-Trimethylbenzene U 0.322 1.00 1 06/10/2023 03:07 WG2074789 1,3,5-Trimethylbenzene U 0.104 1.00 1 06/10/2023 03:07 WG2074789 Vinyl chloride U 0.234 1.00 1 06/10/2023 03:07 WG2074789 o-Xylene U 0.174 1.00 1 06/10/2023 03:07 WG2074789 m&p-Xylenes U 0.430 2.00 1 06/10/2023 03:07 WG2074789 (S) Toluene-d8 103 80.0-120 06/10/2023 03:07 WG2074789 (S) Toluene-d8 98.0 80.0-120 06/13/2023 03:27 WG2076167 (S) 4-Bromofluorobenzene 115 77.0-126 06/10/2023 03:07 WG2074789 (S) 4-Bromofluorobenzene 95.1 77.0-126 06/13/2023 03:27 WG2076167 (S) 1,2-Dichloroethane-d4 94.4 70.0-130 06/10/2023 03:07 WG2074789 (S) 1,2-Dichloroethane-d4 105 70.0-130 06/13/2023 03:27 WG2076167 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 19 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 19 of 42 SAMPLE RESULTS - 08 L1623251 MW-16 Collected date/time: 06/01/23 14:15 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 2260 10000 200 06/10/2023 07:06 WG2074789 Acrolein U 508 10000 200 06/10/2023 07:06 WG2074789 Acrylonitrile U 134 2000 200 06/10/2023 07:06 WG2074789 Benzene 1550 18.8 200 200 06/10/2023 07:06 WG2074789 Bromobenzene U 23.6 200 200 06/10/2023 07:06 WG2074789 Bromodichloromethane U 27.2 200 200 06/10/2023 07:06 WG2074789 Bromoform U 25.8 200 200 06/10/2023 07:06 WG2074789 Bromomethane U 121 1000 200 06/10/2023 07:06 WG2074789 n-Butylbenzene U 31.4 200 200 06/10/2023 07:06 WG2074789 sec-Butylbenzene U 25.0 200 200 06/10/2023 07:06 WG2074789 tert-Butylbenzene U 25.4 200 200 06/10/2023 07:06 WG2074789 Carbon tetrachloride U 25.6 200 200 06/10/2023 07:06 WG2074789 Chlorobenzene U 23.2 200 200 06/10/2023 07:06 WG2074789 Chlorodibromomethane U 28.0 200 200 06/10/2023 07:06 WG2074789 Chloroethane U 38.4 1000 200 06/10/2023 07:06 WG2074789 Chloroform U 22.2 1000 200 06/10/2023 07:06 WG2074789 Chloromethane U 192 500 200 06/10/2023 07:06 WG2074789 2-Chlorotoluene U 21.2 200 200 06/10/2023 07:06 WG2074789 4-Chlorotoluene U 22.8 200 200 06/10/2023 07:06 WG2074789 1,2-Dibromo-3-Chloropropane U 55.2 1000 200 06/10/2023 07:06 WG2074789 1,2-Dibromoethane U 25.2 200 200 06/10/2023 07:06 WG2074789 Dibromomethane U 24.4 200 200 06/10/2023 07:06 WG2074789 1,2-Dichlorobenzene U 21.4 200 200 06/10/2023 07:06 WG2074789 1,3-Dichlorobenzene U 22.0 200 200 06/10/2023 07:06 WG2074789 1,4-Dichlorobenzene U 24.0 200 200 06/10/2023 07:06 WG2074789 Dichlorodifluoromethane U 74.8 1000 200 06/10/2023 07:06 WG2074789 1,1-Dichloroethane U 20.0 200 200 06/10/2023 07:06 WG2074789 1,2-Dichloroethane U 16.4 200 200 06/10/2023 07:06 WG2074789 1,1-Dichloroethene U J4 37.6 200 200 06/10/2023 07:06 WG2074789 cis-1,2-Dichloroethene U 25.2 200 200 06/10/2023 07:06 WG2074789 trans-1,2-Dichloroethene U J4 29.8 200 200 06/10/2023 07:06 WG2074789 1,2-Dichloropropane U 29.8 200 200 06/10/2023 07:06 WG2074789 1,1-Dichloropropene U 28.4 200 200 06/10/2023 07:06 WG2074789 1,3-Dichloropropane U 22.0 200 200 06/10/2023 07:06 WG2074789 2,2-Dichloropropane U 32.2 200 200 06/10/2023 07:06 WG2074789 Di-isopropyl ether U 21.0 200 200 06/10/2023 07:06 WG2074789 Ethylbenzene 1350 27.4 200 200 06/10/2023 07:06 WG2074789 Hexachloro-1,3-butadiene U 67.4 200 200 06/10/2023 07:06 WG2074789 Isopropylbenzene 65.9 J 21.0 200 200 06/10/2023 07:06 WG2074789 p-Isopropyltoluene U 24.0 200 200 06/10/2023 07:06 WG2074789 2-Butanone (MEK)U 238 2000 200 06/10/2023 07:06 WG2074789 Methylene Chloride U 86.0 1000 200 06/10/2023 07:06 WG2074789 4-Methyl-2-pentanone (MIBK)U 95.6 2000 200 06/10/2023 07:06 WG2074789 Methyl tert-butyl ether U 20.2 200 200 06/10/2023 07:06 WG2074789 Naphthalene 541 J 200 1000 200 06/10/2023 07:06 WG2074789 n-Propylbenzene 180 J 19.9 200 200 06/10/2023 07:06 WG2074789 Styrene U 23.6 200 200 06/10/2023 07:06 WG2074789 1,1,1,2-Tetrachloroethane U 29.4 200 200 06/10/2023 07:06 WG2074789 1,1,2,2-Tetrachloroethane U 26.6 200 200 06/10/2023 07:06 WG2074789 Tetrachloroethene U 60.0 200 200 06/10/2023 07:06 WG2074789 Toluene 7620 55.6 200 200 06/10/2023 07:06 WG2074789 1,2,3-Trichlorobenzene U 46.0 200 200 06/10/2023 07:06 WG2074789 1,2,4-Trichlorobenzene U 96.2 200 200 06/10/2023 07:06 WG2074789 1,1,1-Trichloroethane U 29.8 200 200 06/10/2023 07:06 WG2074789 1,1,2-Trichloroethane U 31.6 200 200 06/10/2023 07:06 WG2074789 Trichloroethene U 38.0 200 200 06/10/2023 07:06 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 20 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 20 of 42 SAMPLE RESULTS - 08 L1623251 MW-16 Collected date/time: 06/01/23 14:15 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 32.0 1000 200 06/10/2023 07:06 WG2074789 1,2,3-Trichloropropane U 47.4 500 200 06/10/2023 07:06 WG2074789 1,2,4-Trimethylbenzene 1560 64.4 200 200 06/10/2023 07:06 WG2074789 1,3,5-Trimethylbenzene 454 20.8 200 200 06/10/2023 07:06 WG2074789 Vinyl chloride U 46.8 200 200 06/10/2023 07:06 WG2074789 o-Xylene 2030 34.8 200 200 06/10/2023 07:06 WG2074789 m&p-Xylenes 4780 86.0 400 200 06/10/2023 07:06 WG2074789 (S) Toluene-d8 102 80.0-120 06/10/2023 07:06 WG2074789 (S) 4-Bromofluorobenzene 111 77.0-126 06/10/2023 07:06 WG2074789 (S) 1,2-Dichloroethane-d4 98.3 70.0-130 06/10/2023 07:06 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 21 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 21 of 42 SAMPLE RESULTS - 09 L1623251 MW-17 Collected date/time: 06/01/23 14:05 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 06/10/2023 03:28 WG2074789 Acrolein U 2.54 50.0 1 06/10/2023 03:28 WG2074789 Acrylonitrile U 0.671 10.0 1 06/10/2023 03:28 WG2074789 Benzene U 0.0941 1.00 1 06/10/2023 03:28 WG2074789 Bromobenzene U 0.118 1.00 1 06/10/2023 03:28 WG2074789 Bromodichloromethane U 0.136 1.00 1 06/10/2023 03:28 WG2074789 Bromoform U 0.129 1.00 1 06/10/2023 03:28 WG2074789 Bromomethane U 0.605 5.00 1 06/10/2023 03:28 WG2074789 n-Butylbenzene U 0.157 1.00 1 06/10/2023 03:28 WG2074789 sec-Butylbenzene 0.829 J 0.125 1.00 1 06/10/2023 03:28 WG2074789 tert-Butylbenzene U 0.127 1.00 1 06/10/2023 03:28 WG2074789 Carbon tetrachloride U 0.128 1.00 1 06/10/2023 03:28 WG2074789 Chlorobenzene U 0.116 1.00 1 06/10/2023 03:28 WG2074789 Chlorodibromomethane U 0.140 1.00 1 06/10/2023 03:28 WG2074789 Chloroethane U 0.192 5.00 1 06/10/2023 03:28 WG2074789 Chloroform U 0.111 5.00 1 06/10/2023 03:28 WG2074789 Chloromethane U 0.960 2.50 1 06/10/2023 03:28 WG2074789 2-Chlorotoluene U 0.106 1.00 1 06/10/2023 03:28 WG2074789 4-Chlorotoluene U 0.114 1.00 1 06/10/2023 03:28 WG2074789 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 06/10/2023 03:28 WG2074789 1,2-Dibromoethane U 0.126 1.00 1 06/10/2023 03:28 WG2074789 Dibromomethane U 0.122 1.00 1 06/10/2023 03:28 WG2074789 1,2-Dichlorobenzene U 0.107 1.00 1 06/10/2023 03:28 WG2074789 1,3-Dichlorobenzene U 0.110 1.00 1 06/10/2023 03:28 WG2074789 1,4-Dichlorobenzene U 0.120 1.00 1 06/10/2023 03:28 WG2074789 Dichlorodifluoromethane U 0.374 5.00 1 06/10/2023 03:28 WG2074789 1,1-Dichloroethane U 0.100 1.00 1 06/10/2023 03:28 WG2074789 1,2-Dichloroethane U 0.0819 1.00 1 06/10/2023 03:28 WG2074789 1,1-Dichloroethene U J4 0.188 1.00 1 06/10/2023 03:28 WG2074789 cis-1,2-Dichloroethene U 0.126 1.00 1 06/10/2023 03:28 WG2074789 trans-1,2-Dichloroethene U J4 0.149 1.00 1 06/10/2023 03:28 WG2074789 1,2-Dichloropropane U 0.149 1.00 1 06/10/2023 03:28 WG2074789 1,1-Dichloropropene U 0.142 1.00 1 06/10/2023 03:28 WG2074789 1,3-Dichloropropane U 0.110 1.00 1 06/10/2023 03:28 WG2074789 2,2-Dichloropropane U 0.161 1.00 1 06/10/2023 03:28 WG2074789 Di-isopropyl ether U 0.105 1.00 1 06/10/2023 03:28 WG2074789 Ethylbenzene U 0.137 1.00 1 06/10/2023 03:28 WG2074789 Hexachloro-1,3-butadiene U 0.337 1.00 1 06/10/2023 03:28 WG2074789 Isopropylbenzene 0.322 J 0.105 1.00 1 06/10/2023 03:28 WG2074789 p-Isopropyltoluene U 0.120 1.00 1 06/10/2023 03:28 WG2074789 2-Butanone (MEK)U 1.19 10.0 1 06/10/2023 03:28 WG2074789 Methylene Chloride U 0.430 5.00 1 06/10/2023 03:28 WG2074789 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 06/10/2023 03:28 WG2074789 Methyl tert-butyl ether U 0.101 1.00 1 06/10/2023 03:28 WG2074789 Naphthalene U 1.00 5.00 1 06/13/2023 03:46 WG2076167 n-Propylbenzene U 0.0993 1.00 1 06/10/2023 03:28 WG2074789 Styrene U 0.118 1.00 1 06/10/2023 03:28 WG2074789 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 06/10/2023 03:28 WG2074789 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 06/10/2023 03:28 WG2074789 Tetrachloroethene U 0.300 1.00 1 06/10/2023 03:28 WG2074789 Toluene U 0.278 1.00 1 06/10/2023 03:28 WG2074789 1,2,3-Trichlorobenzene U 0.230 1.00 1 06/10/2023 03:28 WG2074789 1,2,4-Trichlorobenzene U 0.481 1.00 1 06/10/2023 03:28 WG2074789 1,1,1-Trichloroethane U 0.149 1.00 1 06/10/2023 03:28 WG2074789 1,1,2-Trichloroethane U 0.158 1.00 1 06/10/2023 03:28 WG2074789 Trichloroethene U 0.190 1.00 1 06/10/2023 03:28 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 22 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 22 of 42 SAMPLE RESULTS - 09 L1623251 MW-17 Collected date/time: 06/01/23 14:05 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 06/10/2023 03:28 WG2074789 1,2,3-Trichloropropane U 0.237 2.50 1 06/10/2023 03:28 WG2074789 1,2,4-Trimethylbenzene U 0.322 1.00 1 06/10/2023 03:28 WG2074789 1,3,5-Trimethylbenzene U 0.104 1.00 1 06/10/2023 03:28 WG2074789 Vinyl chloride U 0.234 1.00 1 06/10/2023 03:28 WG2074789 o-Xylene U 0.174 1.00 1 06/10/2023 03:28 WG2074789 m&p-Xylenes U 0.430 2.00 1 06/10/2023 03:28 WG2074789 (S) Toluene-d8 106 80.0-120 06/10/2023 03:28 WG2074789 (S) Toluene-d8 103 80.0-120 06/13/2023 03:46 WG2076167 (S) 4-Bromofluorobenzene 111 77.0-126 06/10/2023 03:28 WG2074789 (S) 4-Bromofluorobenzene 103 77.0-126 06/13/2023 03:46 WG2076167 (S) 1,2-Dichloroethane-d4 90.2 70.0-130 06/10/2023 03:28 WG2074789 (S) 1,2-Dichloroethane-d4 108 70.0-130 06/13/2023 03:46 WG2076167 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 23 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 23 of 42 SAMPLE RESULTS - 10 L1623251 MW-18 Collected date/time: 06/01/23 13:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 06/10/2023 03:50 WG2074789 Acrolein U 2.54 50.0 1 06/10/2023 03:50 WG2074789 Acrylonitrile U 0.671 10.0 1 06/10/2023 03:50 WG2074789 Benzene 0.338 J 0.0941 1.00 1 06/10/2023 03:50 WG2074789 Bromobenzene U 0.118 1.00 1 06/10/2023 03:50 WG2074789 Bromodichloromethane U 0.136 1.00 1 06/10/2023 03:50 WG2074789 Bromoform U 0.129 1.00 1 06/10/2023 03:50 WG2074789 Bromomethane U 0.605 5.00 1 06/10/2023 03:50 WG2074789 n-Butylbenzene U 0.157 1.00 1 06/10/2023 03:50 WG2074789 sec-Butylbenzene U 0.125 1.00 1 06/10/2023 03:50 WG2074789 tert-Butylbenzene U 0.127 1.00 1 06/10/2023 03:50 WG2074789 Carbon tetrachloride U 0.128 1.00 1 06/10/2023 03:50 WG2074789 Chlorobenzene U 0.116 1.00 1 06/10/2023 03:50 WG2074789 Chlorodibromomethane U 0.140 1.00 1 06/10/2023 03:50 WG2074789 Chloroethane U 0.192 5.00 1 06/10/2023 03:50 WG2074789 Chloroform U 0.111 5.00 1 06/10/2023 03:50 WG2074789 Chloromethane U 0.960 2.50 1 06/10/2023 03:50 WG2074789 2-Chlorotoluene U 0.106 1.00 1 06/10/2023 03:50 WG2074789 4-Chlorotoluene U 0.114 1.00 1 06/10/2023 03:50 WG2074789 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 06/10/2023 03:50 WG2074789 1,2-Dibromoethane U 0.126 1.00 1 06/10/2023 03:50 WG2074789 Dibromomethane U 0.122 1.00 1 06/10/2023 03:50 WG2074789 1,2-Dichlorobenzene U 0.107 1.00 1 06/10/2023 03:50 WG2074789 1,3-Dichlorobenzene U 0.110 1.00 1 06/10/2023 03:50 WG2074789 1,4-Dichlorobenzene U 0.120 1.00 1 06/10/2023 03:50 WG2074789 Dichlorodifluoromethane U 0.374 5.00 1 06/10/2023 03:50 WG2074789 1,1-Dichloroethane U 0.100 1.00 1 06/10/2023 03:50 WG2074789 1,2-Dichloroethane U 0.0819 1.00 1 06/10/2023 03:50 WG2074789 1,1-Dichloroethene U J4 0.188 1.00 1 06/10/2023 03:50 WG2074789 cis-1,2-Dichloroethene U 0.126 1.00 1 06/10/2023 03:50 WG2074789 trans-1,2-Dichloroethene U J4 0.149 1.00 1 06/10/2023 03:50 WG2074789 1,2-Dichloropropane U 0.149 1.00 1 06/10/2023 03:50 WG2074789 1,1-Dichloropropene U 0.142 1.00 1 06/10/2023 03:50 WG2074789 1,3-Dichloropropane U 0.110 1.00 1 06/10/2023 03:50 WG2074789 2,2-Dichloropropane U 0.161 1.00 1 06/10/2023 03:50 WG2074789 Di-isopropyl ether U 0.105 1.00 1 06/10/2023 03:50 WG2074789 Ethylbenzene U 0.137 1.00 1 06/10/2023 03:50 WG2074789 Hexachloro-1,3-butadiene U 0.337 1.00 1 06/10/2023 03:50 WG2074789 Isopropylbenzene U 0.105 1.00 1 06/10/2023 03:50 WG2074789 p-Isopropyltoluene U 0.120 1.00 1 06/10/2023 03:50 WG2074789 2-Butanone (MEK)U 1.19 10.0 1 06/10/2023 03:50 WG2074789 Methylene Chloride U 0.430 5.00 1 06/10/2023 03:50 WG2074789 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 06/10/2023 03:50 WG2074789 Methyl tert-butyl ether U 0.101 1.00 1 06/10/2023 03:50 WG2074789 Naphthalene U 1.00 5.00 1 06/10/2023 03:50 WG2074789 n-Propylbenzene U 0.0993 1.00 1 06/10/2023 03:50 WG2074789 Styrene U 0.118 1.00 1 06/10/2023 03:50 WG2074789 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 06/10/2023 03:50 WG2074789 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 06/10/2023 03:50 WG2074789 Tetrachloroethene U 0.300 1.00 1 06/10/2023 03:50 WG2074789 Toluene U 0.278 1.00 1 06/10/2023 03:50 WG2074789 1,2,3-Trichlorobenzene U 0.230 1.00 1 06/10/2023 03:50 WG2074789 1,2,4-Trichlorobenzene U 0.481 1.00 1 06/10/2023 03:50 WG2074789 1,1,1-Trichloroethane U 0.149 1.00 1 06/10/2023 03:50 WG2074789 1,1,2-Trichloroethane U 0.158 1.00 1 06/10/2023 03:50 WG2074789 Trichloroethene U 0.190 1.00 1 06/10/2023 03:50 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 24 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 24 of 42 SAMPLE RESULTS - 10 L1623251 MW-18 Collected date/time: 06/01/23 13:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 06/10/2023 03:50 WG2074789 1,2,3-Trichloropropane U 0.237 2.50 1 06/10/2023 03:50 WG2074789 1,2,4-Trimethylbenzene U 0.322 1.00 1 06/10/2023 03:50 WG2074789 1,3,5-Trimethylbenzene U 0.104 1.00 1 06/10/2023 03:50 WG2074789 Vinyl chloride U 0.234 1.00 1 06/10/2023 03:50 WG2074789 o-Xylene U 0.174 1.00 1 06/10/2023 03:50 WG2074789 m&p-Xylenes U 0.430 2.00 1 06/10/2023 03:50 WG2074789 (S) Toluene-d8 101 80.0-120 06/10/2023 03:50 WG2074789 (S) 4-Bromofluorobenzene 108 77.0-126 06/10/2023 03:50 WG2074789 (S) 1,2-Dichloroethane-d4 93.2 70.0-130 06/10/2023 03:50 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 25 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 25 of 42 SAMPLE RESULTS - 11 L1623251 FB-1 Collected date/time: 06/01/23 13:55 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 06/10/2023 01:18 WG2074789 Acrolein U 2.54 50.0 1 06/10/2023 01:18 WG2074789 Acrylonitrile U 0.671 10.0 1 06/10/2023 01:18 WG2074789 Benzene U 0.0941 1.00 1 06/10/2023 01:18 WG2074789 Bromobenzene U 0.118 1.00 1 06/10/2023 01:18 WG2074789 Bromodichloromethane U 0.136 1.00 1 06/10/2023 01:18 WG2074789 Bromoform U 0.129 1.00 1 06/10/2023 01:18 WG2074789 Bromomethane U 0.605 5.00 1 06/10/2023 01:18 WG2074789 n-Butylbenzene U 0.157 1.00 1 06/10/2023 01:18 WG2074789 sec-Butylbenzene U 0.125 1.00 1 06/10/2023 01:18 WG2074789 tert-Butylbenzene U 0.127 1.00 1 06/10/2023 01:18 WG2074789 Carbon tetrachloride U 0.128 1.00 1 06/10/2023 01:18 WG2074789 Chlorobenzene U 0.116 1.00 1 06/10/2023 01:18 WG2074789 Chlorodibromomethane U 0.140 1.00 1 06/10/2023 01:18 WG2074789 Chloroethane U 0.192 5.00 1 06/10/2023 01:18 WG2074789 Chloroform U 0.111 5.00 1 06/10/2023 01:18 WG2074789 Chloromethane U 0.960 2.50 1 06/10/2023 01:18 WG2074789 2-Chlorotoluene U 0.106 1.00 1 06/10/2023 01:18 WG2074789 4-Chlorotoluene U 0.114 1.00 1 06/10/2023 01:18 WG2074789 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 06/10/2023 01:18 WG2074789 1,2-Dibromoethane U 0.126 1.00 1 06/10/2023 01:18 WG2074789 Dibromomethane U 0.122 1.00 1 06/10/2023 01:18 WG2074789 1,2-Dichlorobenzene U 0.107 1.00 1 06/10/2023 01:18 WG2074789 1,3-Dichlorobenzene U 0.110 1.00 1 06/10/2023 01:18 WG2074789 1,4-Dichlorobenzene U 0.120 1.00 1 06/10/2023 01:18 WG2074789 Dichlorodifluoromethane U 0.374 5.00 1 06/10/2023 01:18 WG2074789 1,1-Dichloroethane U 0.100 1.00 1 06/10/2023 01:18 WG2074789 1,2-Dichloroethane U 0.0819 1.00 1 06/10/2023 01:18 WG2074789 1,1-Dichloroethene U J4 0.188 1.00 1 06/10/2023 01:18 WG2074789 cis-1,2-Dichloroethene U 0.126 1.00 1 06/10/2023 01:18 WG2074789 trans-1,2-Dichloroethene U J4 0.149 1.00 1 06/10/2023 01:18 WG2074789 1,2-Dichloropropane U 0.149 1.00 1 06/10/2023 01:18 WG2074789 1,1-Dichloropropene U 0.142 1.00 1 06/10/2023 01:18 WG2074789 1,3-Dichloropropane U 0.110 1.00 1 06/10/2023 01:18 WG2074789 2,2-Dichloropropane U 0.161 1.00 1 06/10/2023 01:18 WG2074789 Di-isopropyl ether U 0.105 1.00 1 06/10/2023 01:18 WG2074789 Ethylbenzene U 0.137 1.00 1 06/10/2023 01:18 WG2074789 Hexachloro-1,3-butadiene U 0.337 1.00 1 06/10/2023 01:18 WG2074789 Isopropylbenzene U 0.105 1.00 1 06/10/2023 01:18 WG2074789 p-Isopropyltoluene U 0.120 1.00 1 06/10/2023 01:18 WG2074789 2-Butanone (MEK)U 1.19 10.0 1 06/10/2023 01:18 WG2074789 Methylene Chloride 0.485 J 0.430 5.00 1 06/10/2023 01:18 WG2074789 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 06/10/2023 01:18 WG2074789 Methyl tert-butyl ether U 0.101 1.00 1 06/10/2023 01:18 WG2074789 Naphthalene U 1.00 5.00 1 06/10/2023 01:18 WG2074789 n-Propylbenzene U 0.0993 1.00 1 06/10/2023 01:18 WG2074789 Styrene U 0.118 1.00 1 06/10/2023 01:18 WG2074789 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 06/10/2023 01:18 WG2074789 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 06/10/2023 01:18 WG2074789 Tetrachloroethene U 0.300 1.00 1 06/10/2023 01:18 WG2074789 Toluene U 0.278 1.00 1 06/10/2023 01:18 WG2074789 1,2,3-Trichlorobenzene U 0.230 1.00 1 06/10/2023 01:18 WG2074789 1,2,4-Trichlorobenzene U 0.481 1.00 1 06/10/2023 01:18 WG2074789 1,1,1-Trichloroethane U 0.149 1.00 1 06/10/2023 01:18 WG2074789 1,1,2-Trichloroethane U 0.158 1.00 1 06/10/2023 01:18 WG2074789 Trichloroethene U 0.190 1.00 1 06/10/2023 01:18 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 26 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 26 of 42 SAMPLE RESULTS - 11 L1623251 FB-1 Collected date/time: 06/01/23 13:55 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 06/10/2023 01:18 WG2074789 1,2,3-Trichloropropane U 0.237 2.50 1 06/10/2023 01:18 WG2074789 1,2,4-Trimethylbenzene U 0.322 1.00 1 06/10/2023 01:18 WG2074789 1,3,5-Trimethylbenzene U 0.104 1.00 1 06/10/2023 01:18 WG2074789 Vinyl chloride U 0.234 1.00 1 06/10/2023 01:18 WG2074789 o-Xylene U 0.174 1.00 1 06/10/2023 01:18 WG2074789 m&p-Xylenes U 0.430 2.00 1 06/10/2023 01:18 WG2074789 (S) Toluene-d8 102 80.0-120 06/10/2023 01:18 WG2074789 (S) 4-Bromofluorobenzene 107 77.0-126 06/10/2023 01:18 WG2074789 (S) 1,2-Dichloroethane-d4 95.9 70.0-130 06/10/2023 01:18 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 27 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 27 of 42 SAMPLE RESULTS - 12 L1623251 TRIP BLANK Collected date/time: 06/01/23 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 06/10/2023 00:56 WG2074789 Acrolein U 2.54 50.0 1 06/10/2023 00:56 WG2074789 Acrylonitrile U 0.671 10.0 1 06/10/2023 00:56 WG2074789 Benzene U 0.0941 1.00 1 06/10/2023 00:56 WG2074789 Bromobenzene U 0.118 1.00 1 06/10/2023 00:56 WG2074789 Bromodichloromethane U 0.136 1.00 1 06/10/2023 00:56 WG2074789 Bromoform U 0.129 1.00 1 06/10/2023 00:56 WG2074789 Bromomethane U 0.605 5.00 1 06/10/2023 00:56 WG2074789 n-Butylbenzene U 0.157 1.00 1 06/10/2023 00:56 WG2074789 sec-Butylbenzene U 0.125 1.00 1 06/10/2023 00:56 WG2074789 tert-Butylbenzene U 0.127 1.00 1 06/10/2023 00:56 WG2074789 Carbon tetrachloride U 0.128 1.00 1 06/10/2023 00:56 WG2074789 Chlorobenzene U 0.116 1.00 1 06/10/2023 00:56 WG2074789 Chlorodibromomethane U 0.140 1.00 1 06/10/2023 00:56 WG2074789 Chloroethane U 0.192 5.00 1 06/10/2023 00:56 WG2074789 Chloroform U 0.111 5.00 1 06/10/2023 00:56 WG2074789 Chloromethane U 0.960 2.50 1 06/10/2023 00:56 WG2074789 2-Chlorotoluene U 0.106 1.00 1 06/10/2023 00:56 WG2074789 4-Chlorotoluene U 0.114 1.00 1 06/10/2023 00:56 WG2074789 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 06/10/2023 00:56 WG2074789 1,2-Dibromoethane U 0.126 1.00 1 06/10/2023 00:56 WG2074789 Dibromomethane U 0.122 1.00 1 06/10/2023 00:56 WG2074789 1,2-Dichlorobenzene U 0.107 1.00 1 06/10/2023 00:56 WG2074789 1,3-Dichlorobenzene U 0.110 1.00 1 06/10/2023 00:56 WG2074789 1,4-Dichlorobenzene U 0.120 1.00 1 06/10/2023 00:56 WG2074789 Dichlorodifluoromethane U 0.374 5.00 1 06/10/2023 00:56 WG2074789 1,1-Dichloroethane U 0.100 1.00 1 06/10/2023 00:56 WG2074789 1,2-Dichloroethane U 0.0819 1.00 1 06/10/2023 00:56 WG2074789 1,1-Dichloroethene U J4 0.188 1.00 1 06/10/2023 00:56 WG2074789 cis-1,2-Dichloroethene U 0.126 1.00 1 06/10/2023 00:56 WG2074789 trans-1,2-Dichloroethene U J4 0.149 1.00 1 06/10/2023 00:56 WG2074789 1,2-Dichloropropane U 0.149 1.00 1 06/10/2023 00:56 WG2074789 1,1-Dichloropropene U 0.142 1.00 1 06/10/2023 00:56 WG2074789 1,3-Dichloropropane U 0.110 1.00 1 06/10/2023 00:56 WG2074789 2,2-Dichloropropane U 0.161 1.00 1 06/10/2023 00:56 WG2074789 Di-isopropyl ether U 0.105 1.00 1 06/10/2023 00:56 WG2074789 Ethylbenzene U 0.137 1.00 1 06/10/2023 00:56 WG2074789 Hexachloro-1,3-butadiene U 0.337 1.00 1 06/10/2023 00:56 WG2074789 Isopropylbenzene U 0.105 1.00 1 06/10/2023 00:56 WG2074789 p-Isopropyltoluene U 0.120 1.00 1 06/10/2023 00:56 WG2074789 2-Butanone (MEK)U 1.19 10.0 1 06/10/2023 00:56 WG2074789 Methylene Chloride U 0.430 5.00 1 06/10/2023 00:56 WG2074789 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 06/10/2023 00:56 WG2074789 Methyl tert-butyl ether U 0.101 1.00 1 06/10/2023 00:56 WG2074789 Naphthalene U 1.00 5.00 1 06/10/2023 00:56 WG2074789 n-Propylbenzene U 0.0993 1.00 1 06/10/2023 00:56 WG2074789 Styrene U 0.118 1.00 1 06/10/2023 00:56 WG2074789 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 06/10/2023 00:56 WG2074789 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 06/10/2023 00:56 WG2074789 Tetrachloroethene U 0.300 1.00 1 06/10/2023 00:56 WG2074789 Toluene U 0.278 1.00 1 06/10/2023 00:56 WG2074789 1,2,3-Trichlorobenzene U 0.230 1.00 1 06/10/2023 00:56 WG2074789 1,2,4-Trichlorobenzene U 0.481 1.00 1 06/10/2023 00:56 WG2074789 1,1,1-Trichloroethane U 0.149 1.00 1 06/10/2023 00:56 WG2074789 1,1,2-Trichloroethane U 0.158 1.00 1 06/10/2023 00:56 WG2074789 Trichloroethene U 0.190 1.00 1 06/10/2023 00:56 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 28 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 28 of 42 SAMPLE RESULTS - 12 L1623251 TRIP BLANK Collected date/time: 06/01/23 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 06/10/2023 00:56 WG2074789 1,2,3-Trichloropropane U 0.237 2.50 1 06/10/2023 00:56 WG2074789 1,2,4-Trimethylbenzene U 0.322 1.00 1 06/10/2023 00:56 WG2074789 1,3,5-Trimethylbenzene U 0.104 1.00 1 06/10/2023 00:56 WG2074789 Vinyl chloride U 0.234 1.00 1 06/10/2023 00:56 WG2074789 o-Xylene U 0.174 1.00 1 06/10/2023 00:56 WG2074789 m&p-Xylenes U 0.430 2.00 1 06/10/2023 00:56 WG2074789 (S) Toluene-d8 98.1 80.0-120 06/10/2023 00:56 WG2074789 (S) 4-Bromofluorobenzene 113 77.0-126 06/10/2023 00:56 WG2074789 (S) 1,2-Dichloroethane-d4 98.6 70.0-130 06/10/2023 00:56 WG2074789 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 29 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 29 of 42 QUALITY CONTROL SUMMARYWG2074789 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-01,02,03,04,06,07,08,09,10,11,12 Method Blank (MB) (MB) R3935663-3 06/10/23 00:15 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acetone U 11.3 50.0 Acrolein U 2.54 50.0 Acrylonitrile U 0.671 10.0 Benzene U 0.0941 1.00 Bromobenzene U 0.118 1.00 Bromodichloromethane U 0.136 1.00 Bromoform U 0.129 1.00 Bromomethane U 0.605 5.00 n-Butylbenzene U 0.157 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butylbenzene U 0.127 1.00 Carbon tetrachloride U 0.128 1.00 Chlorobenzene U 0.116 1.00 Chlorodibromomethane U 0.140 1.00 Chloroethane U 0.192 5.00 Chloroform U 0.111 5.00 Chloromethane U 0.960 2.50 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 Dibromomethane U 0.122 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 Dichlorodifluoromethane U 0.374 5.00 1,1-Dichloroethane U 0.100 1.00 1,2-Dichloroethane U 0.0819 1.00 1,1-Dichloroethene U 0.188 1.00 cis-1,2-Dichloroethene U 0.126 1.00 trans-1,2-Dichloroethene U 0.149 1.00 1,2-Dichloropropane U 0.149 1.00 1,1-Dichloropropene U 0.142 1.00 1,3-Dichloropropane U 0.110 1.00 2,2-Dichloropropane U 0.161 1.00 Di-isopropyl ether U 0.105 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Isopropylbenzene U 0.105 1.00 p-Isopropyltoluene U 0.120 1.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 30 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 30 of 42 QUALITY CONTROL SUMMARYWG2074789 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-01,02,03,04,06,07,08,09,10,11,12 Method Blank (MB) (MB) R3935663-3 06/10/23 00:15 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l 2-Butanone (MEK)U 1.19 10.0 Methylene Chloride U 0.430 5.00 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 n-Propylbenzene U 0.0993 1.00 Styrene U 0.118 1.00 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,4-Trichlorobenzene U 0.481 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2-Trichloroethane U 0.158 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trimethylbenzene U 0.322 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 Vinyl chloride U 0.234 1.00 o-Xylene U 0.174 1.00 m&p-Xylenes U 0.430 2.00 (S) Toluene-d8 101 80.0-120 (S) 4-Bromofluorobenzene 110 77.0-126 (S) 1,2-Dichloroethane-d4 99.2 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3935663-1 06/09/23 23:10 • (LCSD) R3935663-2 06/09/23 23:32 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Acetone 25.0 22.0 26.1 88.0 104 19.0-160 17.0 27 Acrolein 25.0 26.9 27.5 108 110 10.0-160 2.21 26 Acrylonitrile 25.0 27.0 27.6 108 110 55.0-149 2.20 20 Benzene 5.00 5.54 5.70 111 114 70.0-123 2.85 20 Bromobenzene 5.00 4.52 4.88 90.4 97.6 73.0-121 7.66 20 Bromodichloromethane 5.00 5.01 5.34 100 107 75.0-120 6.38 20 Bromoform 5.00 4.60 4.90 92.0 98.0 68.0-132 6.32 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 31 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 31 of 42 QUALITY CONTROL SUMMARYWG2074789 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-01,02,03,04,06,07,08,09,10,11,12 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3935663-1 06/09/23 23:10 • (LCSD) R3935663-2 06/09/23 23:32 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Bromomethane 5.00 3.55 4.10 71.0 82.0 10.0-160 14.4 25 n-Butylbenzene 5.00 4.64 5.08 92.8 102 73.0-125 9.05 20 sec-Butylbenzene 5.00 4.87 5.17 97.4 103 75.0-125 5.98 20 tert-Butylbenzene 5.00 5.01 5.13 100 103 76.0-124 2.37 20 Carbon tetrachloride 5.00 5.96 5.91 119 118 68.0-126 0.842 20 Chlorobenzene 5.00 5.09 5.12 102 102 80.0-121 0.588 20 Chlorodibromomethane 5.00 4.81 4.75 96.2 95.0 77.0-125 1.26 20 Chloroethane 5.00 5.84 6.00 117 120 47.0-150 2.70 20 Chloroform 5.00 5.45 5.43 109 109 73.0-120 0.368 20 Chloromethane 5.00 4.78 5.01 95.6 100 41.0-142 4.70 20 2-Chlorotoluene 5.00 4.72 4.94 94.4 98.8 76.0-123 4.55 20 4-Chlorotoluene 5.00 4.52 4.78 90.4 95.6 75.0-122 5.59 20 1,2-Dibromo-3-Chloropropane 5.00 4.79 4.63 95.8 92.6 58.0-134 3.40 20 1,2-Dibromoethane 5.00 5.29 5.16 106 103 80.0-122 2.49 20 Dibromomethane 5.00 5.37 5.23 107 105 80.0-120 2.64 20 1,2-Dichlorobenzene 5.00 4.82 5.05 96.4 101 79.0-121 4.66 20 1,3-Dichlorobenzene 5.00 4.88 4.98 97.6 99.6 79.0-120 2.03 20 1,4-Dichlorobenzene 5.00 4.69 4.68 93.8 93.6 79.0-120 0.213 20 Dichlorodifluoromethane 5.00 5.18 5.52 104 110 51.0-149 6.36 20 1,1-Dichloroethane 5.00 5.30 6.04 106 121 70.0-126 13.1 20 1,2-Dichloroethane 5.00 5.43 5.09 109 102 70.0-128 6.46 20 1,1-Dichloroethene 5.00 6.13 6.23 123 125 71.0-124 J4 1.62 20 cis-1,2-Dichloroethene 5.00 5.49 5.35 110 107 73.0-120 2.58 20 trans-1,2-Dichloroethene 5.00 5.79 6.17 116 123 73.0-120 J4 6.35 20 1,2-Dichloropropane 5.00 5.41 5.62 108 112 77.0-125 3.81 20 1,1-Dichloropropene 5.00 5.67 5.54 113 111 74.0-126 2.32 20 1,3-Dichloropropane 5.00 5.25 5.42 105 108 80.0-120 3.19 20 2,2-Dichloropropane 5.00 5.17 5.18 103 104 58.0-130 0.193 20 Di-isopropyl ether 5.00 5.24 5.72 105 114 58.0-138 8.76 20 Ethylbenzene 5.00 5.00 5.25 100 105 79.0-123 4.88 20 Hexachloro-1,3-butadiene 5.00 4.87 5.19 97.4 104 54.0-138 6.36 20 Isopropylbenzene 5.00 5.16 5.38 103 108 76.0-127 4.17 20 p-Isopropyltoluene 5.00 4.90 5.15 98.0 103 76.0-125 4.98 20 2-Butanone (MEK)25.0 26.0 27.0 104 108 44.0-160 3.77 20 Methylene Chloride 5.00 5.77 5.91 115 118 67.0-120 2.40 20 4-Methyl-2-pentanone (MIBK)25.0 26.3 25.2 105 101 68.0-142 4.27 20 Methyl tert-butyl ether 5.00 5.50 5.73 110 115 68.0-125 4.10 20 Naphthalene 5.00 3.95 4.38 79.0 87.6 54.0-135 10.3 20 n-Propylbenzene 5.00 4.83 5.08 96.6 102 77.0-124 5.05 20 Styrene 5.00 4.81 5.03 96.2 101 73.0-130 4.47 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 32 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 32 of 42 QUALITY CONTROL SUMMARYWG2074789 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-01,02,03,04,06,07,08,09,10,11,12 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3935663-1 06/09/23 23:10 • (LCSD) R3935663-2 06/09/23 23:32 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% 1,1,1,2-Tetrachloroethane 5.00 5.09 5.36 102 107 75.0-125 5.17 20 1,1,2,2-Tetrachloroethane 5.00 4.87 4.92 97.4 98.4 65.0-130 1.02 20 Tetrachloroethene 5.00 5.53 5.58 111 112 72.0-132 0.900 20 Toluene 5.00 5.27 4.97 105 99.4 79.0-120 5.86 20 1,2,3-Trichlorobenzene 5.00 4.61 5.03 92.2 101 50.0-138 8.71 20 1,2,4-Trichlorobenzene 5.00 4.43 4.88 88.6 97.6 57.0-137 9.67 20 1,1,1-Trichloroethane 5.00 5.77 5.81 115 116 73.0-124 0.691 20 1,1,2-Trichloroethane 5.00 5.17 5.40 103 108 80.0-120 4.35 20 Trichloroethene 5.00 5.74 5.97 115 119 78.0-124 3.93 20 Trichlorofluoromethane 5.00 6.01 6.35 120 127 59.0-147 5.50 20 1,2,3-Trichloropropane 5.00 4.98 4.99 99.6 99.8 73.0-130 0.201 20 1,2,4-Trimethylbenzene 5.00 5.04 5.00 101 100 76.0-121 0.797 20 1,3,5-Trimethylbenzene 5.00 4.66 4.89 93.2 97.8 76.0-122 4.82 20 Vinyl chloride 5.00 5.93 6.17 119 123 67.0-131 3.97 20 o-Xylene 5.00 4.96 5.15 99.2 103 80.0-122 3.76 20 m&p-Xylenes 10.0 10.2 10.2 102 102 80.0-122 0.000 20 (S) Toluene-d8 103 97.9 80.0-120 (S) 4-Bromofluorobenzene 109 110 77.0-126 (S) 1,2-Dichloroethane-d4 93.9 97.2 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 33 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 33 of 42 QUALITY CONTROL SUMMARYWG2076167 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-01,05,07,09 Method Blank (MB) (MB) R3936022-3 06/12/23 22:25 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acrolein U 2.54 50.0 Acrylonitrile U 0.671 10.0 Benzene U 0.0941 1.00 Bromobenzene U 0.118 1.00 Bromodichloromethane U 0.136 1.00 Bromoform U 0.129 1.00 Bromomethane U 0.605 5.00 n-Butylbenzene U 0.157 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butylbenzene U 0.127 1.00 Carbon tetrachloride U 0.128 1.00 Chlorobenzene U 0.116 1.00 Chlorodibromomethane U 0.140 1.00 Chloroethane U 0.192 5.00 Chloroform U 0.111 5.00 Chloromethane U 0.960 2.50 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 Dibromomethane U 0.122 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 Dichlorodifluoromethane U 0.374 5.00 1,1-Dichloroethane U 0.100 1.00 1,2-Dichloroethane U 0.0819 1.00 1,1-Dichloroethene U 0.188 1.00 cis-1,2-Dichloroethene U 0.126 1.00 trans-1,2-Dichloroethene U 0.149 1.00 1,2-Dichloropropane U 0.149 1.00 1,1-Dichloropropene U 0.142 1.00 1,3-Dichloropropane U 0.110 1.00 2,2-Dichloropropane U 0.161 1.00 Di-isopropyl ether U 0.105 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Isopropylbenzene U 0.105 1.00 p-Isopropyltoluene U 0.120 1.00 Methylene Chloride U 0.430 5.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 34 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 34 of 42 QUALITY CONTROL SUMMARYWG2076167 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-01,05,07,09 Method Blank (MB) (MB) R3936022-3 06/12/23 22:25 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 n-Propylbenzene U 0.0993 1.00 Styrene U 0.118 1.00 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,4-Trichlorobenzene U 0.481 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2-Trichloroethane U 0.158 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trimethylbenzene U 0.322 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 Vinyl chloride U 0.234 1.00 o-Xylene U 0.174 1.00 m&p-Xylenes U 0.430 2.00 (S) Toluene-d8 101 80.0-120 (S) 4-Bromofluorobenzene 96.1 77.0-126 (S) 1,2-Dichloroethane-d4 95.3 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3936022-1 06/12/23 20:46 • (LCSD) R3936022-2 06/12/23 21:06 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Acrolein 25.0 25.9 26.5 104 106 10.0-160 2.29 26 Acrylonitrile 25.0 28.5 29.1 114 116 55.0-149 2.08 20 Benzene 5.00 5.07 5.05 101 101 70.0-123 0.395 20 Bromobenzene 5.00 4.94 5.16 98.8 103 73.0-121 4.36 20 Bromodichloromethane 5.00 4.85 5.04 97.0 101 75.0-120 3.84 20 Bromoform 5.00 4.33 4.46 86.6 89.2 68.0-132 2.96 20 Bromomethane 5.00 5.13 5.13 103 103 10.0-160 0.000 25 n-Butylbenzene 5.00 4.41 4.32 88.2 86.4 73.0-125 2.06 20 sec-Butylbenzene 5.00 5.47 5.32 109 106 75.0-125 2.78 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 35 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 35 of 42 QUALITY CONTROL SUMMARYWG2076167 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-01,05,07,09 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3936022-1 06/12/23 20:46 • (LCSD) R3936022-2 06/12/23 21:06 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% tert-Butylbenzene 5.00 5.60 5.64 112 113 76.0-124 0.712 20 Carbon tetrachloride 5.00 5.30 5.29 106 106 68.0-126 0.189 20 Chlorobenzene 5.00 4.79 4.82 95.8 96.4 80.0-121 0.624 20 Chlorodibromomethane 5.00 4.56 4.65 91.2 93.0 77.0-125 1.95 20 Chloroethane 5.00 5.16 5.00 103 100 47.0-150 3.15 20 Chloroform 5.00 4.99 5.10 99.8 102 73.0-120 2.18 20 Chloromethane 5.00 5.12 5.04 102 101 41.0-142 1.57 20 2-Chlorotoluene 5.00 5.15 5.33 103 107 76.0-123 3.44 20 4-Chlorotoluene 5.00 5.00 5.40 100 108 75.0-122 7.69 20 1,2-Dibromo-3-Chloropropane 5.00 4.54 4.67 90.8 93.4 58.0-134 2.82 20 1,2-Dibromoethane 5.00 4.88 4.90 97.6 98.0 80.0-122 0.409 20 Dibromomethane 5.00 4.88 5.03 97.6 101 80.0-120 3.03 20 1,2-Dichlorobenzene 5.00 5.02 5.03 100 101 79.0-121 0.199 20 1,3-Dichlorobenzene 5.00 4.98 5.09 99.6 102 79.0-120 2.18 20 1,4-Dichlorobenzene 5.00 5.05 5.00 101 100 79.0-120 0.995 20 Dichlorodifluoromethane 5.00 5.00 4.71 100 94.2 51.0-149 5.97 20 1,1-Dichloroethane 5.00 5.24 5.17 105 103 70.0-126 1.34 20 1,2-Dichloroethane 5.00 4.97 4.85 99.4 97.0 70.0-128 2.44 20 1,1-Dichloroethene 5.00 5.37 5.38 107 108 71.0-124 0.186 20 cis-1,2-Dichloroethene 5.00 5.38 5.14 108 103 73.0-120 4.56 20 trans-1,2-Dichloroethene 5.00 5.14 5.34 103 107 73.0-120 3.82 20 1,2-Dichloropropane 5.00 4.91 4.79 98.2 95.8 77.0-125 2.47 20 1,1-Dichloropropene 5.00 5.61 5.32 112 106 74.0-126 5.31 20 1,3-Dichloropropane 5.00 5.01 5.12 100 102 80.0-120 2.17 20 2,2-Dichloropropane 5.00 5.29 5.23 106 105 58.0-130 1.14 20 Di-isopropyl ether 5.00 5.27 5.21 105 104 58.0-138 1.15 20 Ethylbenzene 5.00 5.00 5.06 100 101 79.0-123 1.19 20 Hexachloro-1,3-butadiene 5.00 4.89 4.62 97.8 92.4 54.0-138 5.68 20 Isopropylbenzene 5.00 5.09 5.00 102 100 76.0-127 1.78 20 p-Isopropyltoluene 5.00 5.48 5.56 110 111 76.0-125 1.45 20 Methylene Chloride 5.00 5.10 5.06 102 101 67.0-120 0.787 20 4-Methyl-2-pentanone (MIBK)25.0 27.5 28.2 110 113 68.0-142 2.51 20 Methyl tert-butyl ether 5.00 5.24 5.45 105 109 68.0-125 3.93 20 Naphthalene 5.00 4.12 4.13 82.4 82.6 54.0-135 0.242 20 n-Propylbenzene 5.00 5.38 5.41 108 108 77.0-124 0.556 20 Styrene 5.00 4.14 4.17 82.8 83.4 73.0-130 0.722 20 1,1,1,2-Tetrachloroethane 5.00 4.73 4.78 94.6 95.6 75.0-125 1.05 20 1,1,2,2-Tetrachloroethane 5.00 4.99 5.17 99.8 103 65.0-130 3.54 20 Tetrachloroethene 5.00 5.12 4.99 102 99.8 72.0-132 2.57 20 Toluene 5.00 4.80 4.83 96.0 96.6 79.0-120 0.623 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 36 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 36 of 42 QUALITY CONTROL SUMMARYWG2076167 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-01,05,07,09 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3936022-1 06/12/23 20:46 • (LCSD) R3936022-2 06/12/23 21:06 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% 1,2,3-Trichlorobenzene 5.00 5.15 4.88 103 97.6 50.0-138 5.38 20 1,2,4-Trichlorobenzene 5.00 4.29 4.33 85.8 86.6 57.0-137 0.928 20 1,1,1-Trichloroethane 5.00 5.28 5.17 106 103 73.0-124 2.11 20 1,1,2-Trichloroethane 5.00 5.08 5.04 102 101 80.0-120 0.791 20 Trichloroethene 5.00 4.93 5.01 98.6 100 78.0-124 1.61 20 Trichlorofluoromethane 5.00 4.86 4.75 97.2 95.0 59.0-147 2.29 20 1,2,3-Trichloropropane 5.00 4.94 5.28 98.8 106 73.0-130 6.65 20 1,2,4-Trimethylbenzene 5.00 4.79 4.76 95.8 95.2 76.0-121 0.628 20 1,3,5-Trimethylbenzene 5.00 5.01 5.10 100 102 76.0-122 1.78 20 Vinyl chloride 5.00 5.64 5.40 113 108 67.0-131 4.35 20 o-Xylene 5.00 4.88 5.01 97.6 100 80.0-122 2.63 20 m&p-Xylenes 10.0 10.1 9.98 101 99.8 80.0-122 1.20 20 (S) Toluene-d8 99.7 97.4 80.0-120 (S) 4-Bromofluorobenzene 95.9 99.9 77.0-126 (S) 1,2-Dichloroethane-d4 99.0 101 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 37 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 37 of 42 QUALITY CONTROL SUMMARYWG2076606 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1623251-05 Method Blank (MB) (MB) R3936174-2 06/13/23 10:14 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acetone U 11.3 50.0 2-Butanone (MEK)U 1.19 10.0 (S) Toluene-d8 100 80.0-120 (S) 4-Bromofluorobenzene 98.9 77.0-126 (S) 1,2-Dichloroethane-d4 110 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3936174-1 06/13/23 09:10 • (LCSD) R3936174-3 06/13/23 11:33 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Acetone 25.0 30.9 30.1 124 120 19.0-160 2.62 27 2-Butanone (MEK)25.0 29.0 24.5 116 98.0 44.0-160 16.8 20 (S) Toluene-d8 97.7 96.6 80.0-120 (S) 4-Bromofluorobenzene 103 103 77.0-126 (S) 1,2-Dichloroethane-d4 115 110 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 38 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 38 of 42 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. J4 The associated batch QC was outside the established quality control range for accuracy. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 39 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 39 of 42 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:04 40 of 42 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: ATC Group Services LLC L1623251 06/14/23 16:07 40 of 42