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Home My WebLink AboutRA-527_3327_CA_MRP_20220321 WithersRavenel Our People. Your Success. 115 MacKenan Drive | Cary, NC 27511 t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F‐1479 Asheville | Cary | Greensboro | Pittsboro | Raleigh | Wilmington SUBSEQUENT MONITORING REPORT Former Billy’s Mini Mart NCDEQ Incident # 3327 UST # RA‐527 3121 NC Highway 86 North Hillsborough, Orange County, North Carolina WithersRavenel Project No. 02170214.74 Prepared for: State of North Carolina Department of Environmental Quality Division of Waste Management Underground Storage Tank Section Federal & State Lead Program 1646 Mail Service Center Raleigh, North Carolina 27699‐1646 Prepared by: WithersRavenel 115 MacKenan Drive Cary, North Carolina 27511 North Carolina Firm License No. F‐1479 March 21, 2022 WithersRavenel Our People. Your Success. 115 MacKenan Drive | Cary, NC 27511 t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F‐1479 Asheville | Cary | Greensboro | Pittsboro | Raleigh | Wilmington March 21, 2022 State of North Carolina Department of Environmental Quality Federal & State Lead Program Division of Waste Management‐Underground Storage Tank Section 1646 Mail Service Center Raleigh, North Carolina 27699‐1646 Attn: Mr. Mark Petermann, L.G. Re: Subsequent Monitoring Report Former Billy’s Mini Mart 3121 NC Highway 86 North Hillsborough, Orange County, North Carolina Groundwater Incident Number: 3327 UST Number: RA‐527 WR Project Number: 02170214.74 Mr. Petermann, WithersRavenel, Inc. (WR) has completed this Subsequent Monitoring Report to document monitoring well installation and groundwater sampling activities completed at the facility in association with our proposal, numbered TA‐02, for the above referenced site, approved by the Federal & State Lead Program on October 7, 2021. WR appreciates the opportunity to be of service to the Federal & State Lead Program. Should you have any questions regarding the attached, please contact us at (919) 469‐3340. Cordially, WithersRavenel Matilynn Maltba Elizabeth A. Allyn, P.G. Environmental Staff Professional I Environmental Project Geologist II WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 i TABLE OF CONTENTS SECTION A. SITE INFORMATION ..................................................................................................................... 2 SECTION B. EXECUTIVE SUMMARY ................................................................................................................ 3 SECTION C. SITE HISTORY AND CHARACTERIZATION ............................................................................ 5 SECTION D. MONITORING WELL INSTALLATION – NOVEMBER 2021 .............................................. 9 SECTION E. GROUNDWATER SAMPLING – NOVEMBER‐DECEMBER 2021 .................................. 10 SECTION F. COMPOUND‐SPECIFIC ISOTOPE ANALYSIS ..................................................................... 11 SECTION G. CONCLUSIONS AND RECOMMENDATIONS .................................................................... 12 FIGURES Figure 1 General Location Map Figure 2 Site Map Figure 3 Groundwater Elevation Contour Map – Nov/Dec 2021 Figure 4 Groundwater Analytical Results Map – Nov/Dec 2021 Figure 5 Groundwater Benzene Isoconcentration Map – Nov/Dec 2021 Figure 6 Groundwater Naphthalene Isoconcentration Map – Nov/Dec 2021 Figure 7 Groundwater MTBE Isoconcentration Map – Nov/Dec 2021 Figure 8 Receptor Map TABLES Table B‐1 Site History: UST/AST System & Other Release Information Table B‐4 Summary of Groundwater Analytical Results Table B‐4A Summary of Historical Groundwater Analytical Results Table B‐5 Public & Private Water Supply Well Information Table B‐7 Monitoring & Remediation Well Construction Information Table B‐9 Current and Historical Groundwater Elevations and LNAPL Thickness APPENDICES Appendix A Field Notes & Photographic Record Appendix B Boring Logs & Well Construction Records Appendix C Laboratory Analytical Report & Chain‐of‐Custody Appendix D General Standard Operating Procedures Appendix E Compound‐Specific Isotope Analysis Interpretation WithersRavenel Our People. Your Success. 115 MacKenan Drive | Cary, NC 27511 t: 919.469.3340 | f: 919.467.6008 | www.withersravenel.com | License No. F‐1479 Asheville | Cary | Greensboro | Pittsboro | Raleigh | Wilmington SECTION A. SITE INFORMATION 1. Site Identification Date of Report: March 21, 2022 Facility I.D.: 00‐0‐0000022161 Incident No.: 3327 UST No.: RA‐527 Site Risk: High Site Rank: H0245B Land Use Category: Commercial Site Name: Former Billy’s Mini Mart Site Location: 3121 NC Highway 86 North Nearest City/Town: Hillsborough County: Orange Description of Geographical Data Point: Center of Source Area Location Method: Google Earth Latitude: 36.136434° N Longitude: ‐79.120169° W 2. Contact Information Responsible Party: Home Oil Company Address: 933 West Center St., Mebane, NC 27302 Phone: 919‐428‐6056 Property Owner: Kittaney Inc. Address: 3121 NC Hwy 86 North, Hillsborough, NC 27278 Phone: 919‐428‐6056 Property Occupant: Ken’s Quickie Mart/John’s Grill Address: 3121 NC Hwy 86 North, Hillsborough, NC 27278 Phone: 919‐732‐5090 Consultant/Contractor: WithersRavenel Address: 115 MacKenan Drive, Cary, NC 27511 Phone: 919‐469‐3340 Analytical Laboratory: Waypoint Analytical, LLC State Certification Number: ENV402 Address: 449 Springbrook Rd., Charlotte, NC 28217 Phone: 704‐529‐6364 WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 3 SECTION B. EXECUTIVE SUMMARY 1. Summary of Activities Associated with Current TA WithersRavenel, Inc. (WR) supervised the installation of one temporary well and two permanent monitoring wells and conducted a groundwater sampling event at the Billy’s Mini Mart site located at 3121 NC Highway 86 in Hillsborough, Orange County, North Carolina in association with task authorization TA‐02 approved on October 7, 2021, under North Carolina Department of Environmental Quality (NCDEQ) Contract #N122019B. The scope of work for this project included the installation of two permanent monitoring wells (MW‐18 and MW‐19) and one temporary well (TW‐1), sampling the temporary well and monitoring wells MW‐4, MW‐12, MW‐ 13, MW‐17, MW‐18, and MW‐19, surveying the tops‐of‐casing elevations for the two permanent monitoring wells. 2. Soil, Groundwater and LNAPL Assessment Information Soils No soil samples were obtained in connection with this task authorization. To date, assessment of soil impact at the site has not been performed to determine the extent of soil contamination exceeding Maximum Soil Contaminant Concentrations (MSCCs), however, the 1999 Comprehensive Site Assessment (CSA) completed by Stratus Environmental Services, LLP (Stratus) mapped the “approximate lateral extent of petroleum hydrocarbons in soil”. Groundwater Analytical data for groundwater samples collected from site monitoring wells during November/December 2021 indicated the presence of one or more targeted compounds exceeding the North Carolina Groundwater Quality Standards (2L Standards) in samples from monitoring wells MW‐4, MW‐12, MW‐13, MW‐14, and MW‐17, and temporary well TW‐1. Benzene was reported at a concentration exceeding the Gross Contamination Level (GCL) in monitoring well MW‐13. Based on measurements obtained in November/December 2021, groundwater flow was determined to be generally to the southeast. Previous interpretations of groundwater flow have generally trended to the south through the site, with some movement to the north on the northern part of the site. This disparity could be due in part to the potential influence of the septic system and associated leach field on the site, located in the vicinity of MW‐2R and MW‐16, or to fluctuations in general groundwater elevations at the location. LNAPL Light non‐aqueous phase liquid (LNAPL) has historically been detected in monitoring wells MW‐ 8, MW‐11, and SRW‐1 during previous monitoring events. LNAPL was not measured during the November‐December 2021 sampling event. WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 4 3. Receptor Information WR performed a receptor survey at the site in September 2002. Thirty water supply wells were identified within a 1,000‐foot (ft) radius of the release area, one of which (WSW‐1) is located in the northeast corner of the site. Municipal water is not available to the site or surrounding properties. Private water supply well information is included in Table B‐5, and supply well locations are depicted on Figure 8. Based on information obtained from the NCDEQ Source Water Assessment Program (SWAP) website, the on‐site water supply well is identified as a transient non‐community water system (PWS ID NC0368479). The nearest surface water feature identified in proximity to the site is an un‐named pond located approximately 600 feet to the south/southwest of the site. 4. Remediation Activities Based on WR’s review of historical files available for the site, the following remedial activities have been completed at the location:  UST and soil excavation activities were conducted at the site during December 1986.  A groundwater pump and treatment system was brought online in 1988 and operated until at least 1999 at the location. However, sometime after 1999, the system was taken offline.  In February 2013, a 96‐hour Mobile Multi‐Phase Extraction (MMPE) event was conducted at the site, during which 3,115 gallons of impacted groundwater were recovered and approximately 307.31 gallons of volatile product were extracted.  Provectus® ORS™ well sleeves were placed in MW‐11, MW‐14 and RW‐3 in December 2018 and were replaced in December 2019. WR is not aware of additional remedial activities performed at the site. 5. Recommendations Based on the results of assessment and monitoring activities conducted at the site in association with this TA, WR recommends the following:  Continue performance of groundwater and supply well sampling to determine contaminant trends and ensure supply wells do not show impact.  If funding allows, conduct soil and groundwater assessment through use of Membrane Interface Hydraulic Profiling (MiHPt) in conjunction with groundwater assessment focused on collection of data for determination of a suitable chemical amendment for remediation at the facility.  Should LNAPL be identified during future monitoring at the site, as an interim remedial effort, perform a surfactant injection in and around the estimated area of LNAPL impact, followed by an MMPE event.  Complete a Corrective Action Feasibility Study (CAFS) to address long‐term remediation of soil and groundwater at the facility. WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 5 SECTION C. SITE HISTORY AND CHARACTERIZATION The following information summarizes the site history and characterization. 1. UST Information Previous reports indicated a UST system was present at the site in the 1980s and 1990s which consisted of one 8,000‐gallon and two 4,000‐gallon gasoline USTs. The 8,000‐gallon and one of the 4,000‐gallon USTs and the associated dispenser island were located west of the building while the second 4,000‐gallon UST was located on the north side of the existing building. A release was discovered during November 1986 when Home Oil Company (UST owner) reported to NCDEQ that 1,000 to 2,000‐gallons of gasoline were unaccounted for from the 4,000‐gallon UST located west of the building. As a result, this UST was replaced in December 1986. A split in one of the welded seams of the tank was discovered during its removal. Current and historical UST information is included in Table B‐1. In October 2000, the two USTs located west of the building (the 8,000‐gallon and the 4,000‐gallon tanks) were closed by way of removal and replaced with a 10,000‐gallon and a 6,000‐gallon UST. The replacement tanks were installed north of the building. During the installation of these new USTs, the contractor noted the presence of an additional 4,000‐gallon tank, which was left in place adjacent to the new UST pit. NCDEQ records indicate that this 4,000‐gallon UST was closed in 2008. 2. Description of Release/General Assessment History The following summary of the assessment history is based on WR’s review of historical files for the subject incident including:  A release of petroleum was discovered in 1986, when at least two of the USTs located on the property were removed and soil was excavated to 22 ft below land surface (bls). A groundwater pump and treat system was later installed and began operation in 1988. It is unclear when treatment system operations terminated at the location, but it was estimated to have been sometime after 1999. Two water supply wells sampled in 1988 were found to be impacted by MTBE (Penland – 213 parts‐per‐billion or “ppb” and Bledsoe – 28 ppb). Supply wells sampled in 2002 indicated an MTBE concentration of 3 ppb in one well sampled (Gates). A Comprehensive Site Assessment (CSA) was completed for the release in June 1999, which recommended dual‐phase vacuum extraction at the site. Pilot testing, that included soil vapor extraction (SVE), step‐drawdown testing and pump testing for the completion of a Corrective Action Plan (CAP) was performed in August 1999. Based on the 1999 CSA, municipal water is not available in the vicinity of the site and soil contamination had not been properly assessed. Only one soil sample was collected from the vadose zone at the location, obtained during the installation of monitoring well DW‐1.  WR performed a receptor survey in September of 2002 and determined the following: thirty (30) supply wells were identified within 1,000 ft of the site; municipal water is not available to the site or surrounding properties; the nearest surface water feature is an un‐named pond located approximately 600 feet to the south/southwest of the site; the site and surrounding WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 6 areas are rural consisting of large lots used primarily for single‐family residential use, or remain undeveloped; and the land use at the site is small business retail.  WR collected groundwater samples from the existing monitoring/recovery wells at the site on June 1, 2004. Based on the laboratory analytical report, petroleum compounds were detected at concentrations above 2L Standards in samples collected from monitoring wells MW‐1, MW‐ 4, MW‐6, MW‐8, MW‐9, MW‐10, RW‐3, DW‐2 and SRW‐1. No supply wells were sampled during this groundwater sampling event. Groundwater elevation data indicated that groundwater flow direction at the site was to the south/southeast with an approximately gradient of 0.04 ft/ft.  WR personnel were onsite on September 29, 2005 to collect groundwater samples from the existing monitoring/recovery wells at the location (MW‐1 through MW‐10, DMW‐1, DMW‐ 2, RW‐3, SRW‐1 and SRW‐2). LNAPL was detected in monitoring well MW‐8. Based on the laboratory analytical report, petroleum compounds were detected at concentrations above 2L Standards in samples collected from monitoring wells MW‐4, DMW‐1, DMW‐2, SRW‐1, and SRW‐2.  WR personnel were onsite on November 2 and 3, 2006 to collect groundwater samples from the existing monitoring/recovery wells at the site (MW‐1 through MW‐10, DMW‐1, DMW‐2, RW‐3, and SRW‐1) and from six water supply wells located in the immediate vicinity of the site (Ken’s [WSW‐1], Bledsoe [WSW‐2], Gates [WSW‐3], Murray [WSW‐4], Page [WSW‐6], and Huskins [WSW‐7]). LNAPL was not detected in the monitoring wells during this sampling event. Monitoring wells MW‐1, MW‐9, and MW‐10 were dry and not able to be sampled. Based on the laboratory analytical report, petroleum compounds were detected at concentrations above 2L Standards in samples collected from monitoring wells MW‐4, MW‐8, RW‐3, DMW‐1, and SRW‐1. No targeted compounds were detected above laboratory detection limits in the supply well samples.  WR personnel were onsite on November 4, 2008 to collect groundwater samples from the existing monitoring/recovery wells at the site (MW‐1 through MW‐10, DMW‐1, DMW‐2, RW‐ 3, and SRW‐1). LNAPL was not detected in the monitoring wells during this sampling event. WR personnel also collected groundwater samples from six water supply wells located in the immediate vicinity of the site (WSW‐1, WSW‐2, WSW‐3, WSW‐4, WSW‐6, and WSW‐7). Groundwater analytical results showed petroleum compounds at concentrations above 2L Standards in samples collected from monitoring wells MW‐8, DMW‐1, and SRW‐1. The groundwater dissolved contaminant plume was determined to be delineated. No targeted compounds were detected in the supply wells that were sampled. Groundwater flow direction at the site was determined to be to the southeast.  Additional groundwater monitoring events were conducted on August 14, 2009, March 25, 2010, November 8, 2011, and November 29, 2012. During one event, LNAPL was present in monitoring well MW‐8 at a thickness of 0.31 feet. Petroleum compounds were detected above the 2L standards in monitoring wells MW‐4, MW‐10R, DMW‐1, SRW‐1, and SRW‐2. Analytical results of the water supply well samples indicated the presence of MTBE in samples collected from wells WSW‐1, WSW‐2, and WSW‐6 at concentrations below the 2L Standard.  A MMPE event was conducted for 96 hours in February 2013 by Terraquest Environmental WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 7 Consultants, P.C. At the conclusion of the event, 3,115 ‐gal of contaminated water and 307.31 ‐gal of volatilized product had been removed from monitoring well MW‐8.  WR completed a groundwater sampling event in November 2014. Groundwater samples were collected from wells MW‐3, MW‐4, MW‐5, MW‐7, MW‐8, MW‐9R, MW‐10R, RW‐3, DW‐1, DW‐2, and SRW‐1. Supply wells WSW‐1, WSW‐6 and WSW‐7 were also sampled. LNAPL was measured in monitoring well MW‐11 at a thickness of 0.01 ft. Benzene exceeded the GCL in monitoring well MW‐9R. Monitoring wells DW‐1, MW‐4, MW‐8, MW‐9R, MW‐10R, and SRW‐1 exhibited concentrations that exceeded their respective 2L standards. Monitoring wells MW‐3, MW‐5 and MW‐7 and water supply wells WSW‐1, WSW‐6, and WSW‐7 did not contain VOCs at concentrations that exceeded the laboratory detection limits.  In May 2015, WR installed monitoring wells MW‐12, MW‐13, MW‐14, MW‐15, MW‐16 and MW‐17 and performed a groundwater sampling event at the site. Monitoring wells MW‐4, MW‐8, MW‐9R, MW‐10R, MW‐11, MW‐12, MW‐13, MW‐14, MW‐17, DW‐1, DW‐2, SRW‐ 1 and RW‐3 contained concentrations exceeding their respective 2L Standards. Benzene was reported at concentrations exceeding the GCL for the compound in samples from MW‐9R and MW‐13. Numerous compounds exceeded their respective GCLs in MW‐11. Based on measurements obtained during the May 2015 groundwater sampling event at the site, groundwater flow appeared to trend to the southeast through the site.  In October 2015, WR personnel gauged LNAPL levels within MW‐11 and MW‐14, and gauged, purged and sampled monitoring wells MW‐2R, MW‐3, MW‐4, MW‐5, MW‐6, MW‐7, MW‐8, MW‐9R, MW‐10R, MW‐12, MW‐13, MW‐15, MW‐16, MW‐17, DW‐1, DW‐2 and SRW‐1 and supply wells WSW‐1, WSW‐2, WSW‐3, WSW‐4, WSW‐5 and WSW‐6 for VOC analysis. Analytical data for groundwater samples obtained from monitoring wells at the site indicated the presence of one or more targeted compounds in samples obtained from wells MW‐4, MW‐ 5, MW‐8, MW‐9R, MW‐10R, MW‐12, MW‐13, MW‐17, DW‐1, DW‐2 and SRW‐1 at concentrations exceeding their respective 2L Standards. Benzene was reported at a concentration exceeding the GCL in the sample from MW‐9R. The presence of LNAPL in wells MW‐11 and MW‐14 also represents a GCL violation. WR also obtained LNAPL samples from monitoring well MW‐11 and the two active USTs (UST‐1 and UST‐2) located on the property for product identification “fingerprint” analyses. Not accounting for possible degradation of select chemical compounds, initial results of fuels and LNAPL testing showed no direct correlation between the UST samples and the LNAPL sample obtained from MW‐11. Further laboratory interpretation of these data revealed that the fuels contained in USTs 1 and 2 do not match the product within monitoring well MW‐11.  In April 2017, WR personnel gauged LNAPL levels within MW‐11 and MW‐14, and gauged, purged and sampled monitoring wells MW‐1, MW‐2R, MW‐3, MW‐4, MW‐5, MW‐6, MW‐7, MW‐8, MW‐9R, MW‐10R, MW‐12, MW‐13, MW‐15, MW‐16, MW‐17, DW‐1, DW‐2 and SRW‐1 and supply wells WSW‐1, WSW‐2, WSW‐3, WSW‐4, WSW‐5 and WSW‐6 for VOC analysis. One or more compounds in samples obtained from wells MW‐4, MW‐5, MW‐8, MW‐ 9R, MW‐10R, MW‐12, MW‐13, MW‐17, DW‐1, DW‐2, and SRW‐1 at concentrations exceeding their respective 2L Standards. Benzene was reported at a concentration exceeding the GCL in the sample from MW‐9R. The presence of LNAPL in wells MW‐11 and MW‐14 also represents a GCL violation. Analytical data for supply well samples obtained from WSW‐ 1, WSW‐2, WSW‐3 and WSW‐4 indicated the presence of chloroform in the samples at levels WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 8 above the laboratory method detection limit (MDL) for SM6200B but beneath the NC 2L Standard for the compound. There is no standard for chloroform listed by the US EPA Region IV Maximum Contaminant Levels (MCL), December 2009. Based on measurements obtained during the April 2017 groundwater sampling event at the site, groundwater flow appears to trend to the south and southeast through the location.  WR personnel completed a groundwater and supply well sampling event between November 29 and December 18, 2018. One or more compounds in samples obtained from wells MW‐8, MW‐9R, MW‐12, MW‐13, MW‐17, DW‐2 and SRW‐1 were detected at concentrations exceeding their respective 2L Standards. Benzene was reported at a concentration exceeding the GCL for the compound in the sample from MW‐13. LNAPL was measured in wells MW‐ 11 (0.02 ft) and MW‐14 (0.01 ft). Analytical data for supply well samples showed bromodichloromethane present in the sample obtained from WSW‐1 at a concentration exceeding the 2L Standard. Data for samples obtained from WSW‐1, WSW‐2 and WSW‐4 showed the presence of chloroform in the samples at levels above the laboratory MDL for SM6200B but beneath the NC 2L Standard for the compound. Analytical data for supply well samples obtained from WSW‐3, WSW‐5 and WSW‐6 did not indicate the presence of target compounds at levels above their MDLs for SM6200B.  WR personnel completed a groundwater and supply well sampling event between December 30, 2019 and January 20, 2020. One or more compounds detected in samples from MW‐4, MW‐8, MW‐9R, MW‐10R, MW‐11, MW‐12, MW‐13, MW‐14, MW‐17 and SRW‐1 were reported at concentrations exceeding their respective 2L Standards. Benzene was reported at a concentration exceeding the GCLs in the samples obtained from MW‐9R and MW‐13. Analytical data for supply well samples showed acetone present in the sample obtained from WSW‐1 at a concentration beneath the 2L Standard, and chloroform in samples from WSW‐ 1, WSW‐3 and WSW‐4, also at concentrations beneath the 2L Standard. Based on data for wells WSW‐1, WSW‐3 and WSW‐4, the NCDEQ requested that WR re‐sample these wells. Results of SM6200B analysis of these samples showed chloroform present in samples from WSW‐3 and WSW‐4 at levels beneath the 2L Standard. Chloromethane was reported in each of the supply wells (WSW‐1, WSW‐3 and WSW‐4) at concentrations above the 2L Standard for the compound. 3. Brief Description of Site Characteristics The site is located in Hillsborough, Orange County, North Carolina (Figure 1) and includes an area of approximately 1.6 acres. The facility is located at 3121 NC Highway 86 and includes the following improvements: A one‐story brick/block building (the former Billy's Mini Mart) currently operating as Ken's Quickie Mart. A wood‐framed addition is located at the rear of the building along the eastern wall. Approximately 30% of the site surface is covered with asphalt or concrete. Active UST systems are contained within a UST area located near the northeastern corner of the building on site. These USTs supply dispensers are located beneath a canopy located near the northwestern corner of the building. Potable water utilized on the site is obtained from a supply well located near the northeastern corner of the property (WSW‐1). An additional (out of service) supply well is located southwest of the site building, between monitoring wells MW‐6 and MW‐ 8. A septic system is located to the east of the site building. Site features, improvements and monitoring well locations are shown on Figure 2. Site photographs are included in Appendix A. WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 9 The surrounding area consists mainly of private residences and undeveloped properties. Carolane Propane Gas Company maintains a facility located to the north of the site, on the northern side of Phelps Road. Municipal water is not currently available to the site or surrounding properties. 4. Information on Receptors/Potential Receptors A receptor survey was performed in association with the release at the site by WR in September 2002 and included the following findings:  Thirty water supply wells were identified within 1,000 ft of the site,  An un‐named surface water body (pond) is located approximately 600 feet south‐southwest of the site,  No public water supply was found to be available to the site or surrounding properties. Private water supply well information is included in Table B‐5, and well locations are depicted on Figure 8. 5. Regional and Site Geology and Hydrology The Geologic Map of North Carolina depicts the site in the as being underlain by felsic metavolcanic rock of the Cambrian to Late Proterozoic that is described as light gray to greenish gray metamorphosed dacitic to rhyolitic flows and tuffs interbedded with mafic and intermediate metavolcanic rock, meta‐argillite, and metamudstone. According to the United States Department of Agricultural (USDA) Natural Resources Conservation Service (NRCS) Web Soil Survey, the source area is underlain by Herndon silt loam (2 to 6 percent slopes). Herndon silt loam is well drained, found on summit interfluves, and the parent material is residuum weathered from phyllite. Well construction records for monitoring wells MW‐12 through MW‐17 indicated that soils beneath the site are predominantly clay to clayey silt with auger refusal encountered at approximately 39 bgs. SECTION D. MONITORING WELL INSTALLATION – NOVEMBER 2021 WR, along with Quantex, Inc., a North Carolina‐licensed well driller, mobilized to the site on November 30, 2021, to install two type II monitoring wells, MW‐18 and MW‐19, and one temporary well, TW‐1. Prior to sub‐surface work, WR contacted the public utility locating service NC811 and the WR Subsurface Utility Engineering Department to mark public and private utilities. Each type II monitoring well was advanced using 6 inch solid‐stem augers. Each 2‐inch diameter monitoring well was completed with a 15‐foot (‐ft) length of Schedule 40 PVC 10‐slot well screen followed by a 25‐ft length of Schedule 40 PVC 2‐inch diameter casing. Monitoring wells MW‐18 and MW‐19 were each installed to a depth of 40‐ft below ground surface (bgs). Each well was completed with a concrete collar/pad and 8‐inch diameter flush‐mount manway. Temporary monitoring well TW‐1 was advanced using 6‐inch solid‐stem augers and a 1” slotted PVC well WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 10 screen was placed into the borehole and sand was placed between the edge of the borehole and the well screen. TW‐1 was removed after sample collection and the borehole properly abandoned. Boring logs and well completion records are included in Appendix B. Monitoring well locations are shown on Figure 2. Following completion, each monitoring well TOC was surveyed, and each well was developed with a dedicated bailer. SECTION E. GROUNDWATER SAMPLING – NOVEMBER‐DECEMBER 2021 On November 30 and December 1, 2021, WR personnel mobilized to the subject property to perform limited groundwater sampling activities. The scope of work for this project included the gauging, purging, and sampling of the temporary well and monitoring wells MW‐4, MW‐12, MW‐ 13, MW‐17, MW‐18, and MW‐19. The following paragraphs describe the sampling activities and associated laboratory analytical results. Groundwater Sampling Activities Prior to the purging and sampling of site monitoring wells as described below, WR personnel gauged the wells with an electronic oil‐water interface meter to determine the depth to LNAPL and groundwater at each well location. During the performance of these activities, LNAPL was not identified in the monitoring wells. The depth to groundwater measurements in the monitoring wells across the site ranged from 27.60 feet below the top of casing (ft‐BTOC) in monitoring well MW‐17 to 29.98 ft‐BTOC in monitoring well MW‐4. Depth to water was, on average, 12.8 feet deeper during the November‐ December 2021 event compared to the May 2021 event. This is consistent with historical water table elevation fluctuations. Based on groundwater elevation measurements taken on November 30, 2021 and December 1, 2021, the direction of groundwater flow is generally towards the southeast. Groundwater flow as determined based on these measurements is shown on Figure 3. Groundwater elevation measurements for this event are presented in Table B‐7. Historical groundwater elevations are summarized in Table B‐9. Following gauging, the monitoring wells were purged and sampled with separate, disposable polyethylene (PE) bailers for each well. Samples from the wells were decanted into pre‐preserved laboratory provided sample containers. Samples collected from site monitoring wells were submitted to Waypoint for testing by Environmental Protection Agency (EPA) Method 8260B. In addition, the samples that exceeded the 2L Standards were submitted to Microbial Insights for Compound Specific Isotope Analysis. Laboratory Results Analytical data for groundwater samples collected from site monitoring wells during November and December 2021 indicated the presence of one or more targeted compounds exceeding the 2L Standards in samples from monitoring wells MW‐4, MW‐12, MW‐13, MW‐14, and MW‐17, and temporary well TW‐1. Benzene was reported at a concentration exceeding the GCL in monitoring well MW‐13. Based solely on total BTEX concentrations for groundwater samples from May 2021 in comparison to those from November/December 2021, increases in contaminants were indicated in the WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 11 sampled monitoring wells. Changes in total BTEX concentrations at the location, whether increasing or decreasing, may relate to fluctuations in groundwater elevations at the site, although continued monitoring assists in mapping these trends. On average, groundwater elevations within the surficial aquifer were 12.8 ft deeper than those measured in May 2021. The changes in total BTEX over the May 2021 – November/December 2021 period are shown in the following table: Well ID Total BTEX May 2021 Total BTEX Nov‐Dec 2021 Change Percent Change MW‐4 714.2 852 increase 19.3 MW‐12 167.3 208.3 increase 24.5 MW‐13 25,670 33,810 increase 31.7 MW‐17 1,282.9 1,658.6 increase 29.3 Groundwater analytical results are summarized in Table B‐4 and shown on Figure 4. Isoconcentration maps showing benzene, naphthalene, and MTBE are included as Figures 5, 6, and 7, respectively. Historical groundwater analytical results are summarized in Table B‐4A. Copies of the laboratory analytical report and chain‐of‐custody are included in Appendix C. WR’s generalized standard operating procedures are provide in Appendix D. SECTION F. COMPOUND‐SPECIFIC ISOTOPE ANALYSIS Compound‐Specific Isotope Analysis (CSIA) is an analytical method that measures the ratios of naturally occurring stable isotopes in environmental samples. CSIA can be used to gain information about potential contamination sources, the extent of degradation, comingling of contaminant plumes, and the origins of some chemicals. The latter application is often used for investigating disputed environmental contamination. Stable isotope fingerprinting provides the resolution to the question of whether two compounds or substances are distinguishable (un‐related). If the two samples are indistinguishable, this supports the hypothesis that they are related (Muhammad, 20151). CSIA is possible because each element in a compound has a distinct isotopic ratio. The isotopes of a given element have the same number of protons and electrons, but a different number of neutrons and therefore a different atomic mass. Each element has a most abundant isotope and one or more less abundant isotopes. The less abundant isotopes are sometimes heavier because they contain one or more extra neutrons. The difference between these stable yet heavier, less abundant isotopes is the increased mass. CSIA is an analytical method that measures the ratio of stable isotopes of a contaminant. For a given element, the isotopic ratio is known to within a few percent. 1 Muhammad, Syahidah A., Frew, Russell D., and Hayman, Alan R. February 27, 2015, Compound‐ Specific Isotope Analysis of Diesel Fuels in a Forensic Investigation. Frontiers in Chemistry. WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 12 The ratio can change in a systematic way during the course of biodegradation and abiotic degradation. CSIA measures these small changes in isotopic ratios and important information regarding the source, transport, and fate of a compound can be gained from these changes. Based on the dual isotope plot obtained from the CSIA, the δ13C values do not appear to become more positive in the downgradient direction (MW‐12 to MW‐4, MW‐12 to TW‐1); therefore, evidence of degradation is not present. The dual isotope plot points for MW‐4 and MW‐13 are almost identical which does not support the hypothesis of two different source areas for the impacts observed in these two wells. The laboratory CSIA interpretation is included in Appendix E. SECTION G. CONCLUSIONS AND RECOMMENDATIONS This report documents the results of field activities conducted at the site November 30 through December 1, 2021. Conclusions based on assessment and sampling activities, combined with analytical data historical information at the site include the following:  No public or private water supply system services the site or surrounding area,  As many as 30 water supply wells are located within 1,000 ft of the source area.  Numerous wells located on the property contain contaminants at levels in excess of their respective 2L Standard(s).  Benzene was detected in monitoring well MW‐13 in excess of the GCL.  LNAPL was not identified in the monitoring wells gauged in association with sampling event performed in November‐December 2021.  Based on results of the CSIA, it appears the areas of impact around MW‐13 extending to MW‐ 12 and MW‐17 and the impacted area around MW‐4 are related.  Additionally, the CSIA results indicate that degradation is not occurring.  Fluctuations in contaminants are occurring at the site, and present data for total BTEX concentrations in monitoring wells suggest an increasing trend. Changes in total BTEX concentrations at the location, whether increasing or decreasing, may relate to changes in groundwater elevations at the site, although continued monitoring assists in mapping trends.  Groundwater elevations for monitoring wells measured in November/December 2021 were, on average, 12.8 ft deeper than those measured in May 2021 with the May 2021 measurements being the shallowest observed at the site. The increase in total BTEX concentrations in site wells may relate to the less dilution of contaminants.  Based on data for soil samples collected in association with assessment activities performed at the site to date, the extent of soil contamination at the site has not been defined to levels equivalent to the Soil‐to‐Water, Residential, or Industrial/Commercial MSCCs.  Based on groundwater level measurements conducted at the site during November/December 2021, groundwater flow direction is to the southeast which is consistent with historical trends. Based on the results of assessment and monitoring activities conducted at the site in association with this TA, WR recommends the following:  Continue performance of groundwater and supply well sampling to determine contaminant trends and ensure supply wells do not show impact. WithersRavenel Our People. Your Success. Former Billy’s Mini Mart – NCDEQ Incident #3327 WR Project # 02170214.74 Subsequent Monitoring Report March 2022 13  If funding allows, conduct soil and groundwater assessment through use of MiHPt in conjunction with groundwater assessment focused on collection of data for determination of a suitable chemical amendment for remediation at the facility.  Should LNAPL be identified during future monitoring at the site, as an interim remedial effort, perform a surfactant injection in and around the estimated area of LNAPL impact, followed by an MMPE event.  Complete a CAFS to address long‐term remediation of soil and groundwater at the facility. WithersRavenel Our People. Your Success. FIGURES WithersRavenel Our People. Your Success. TABLES UST IDNumberCurrent/LastContentsPreviousContentsCapacity(in gallons)ConstructionDetailsTankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofUSTWas release associated with UST System? (Y/N)1Gasoline Gasoline 10,000 Unknown Unknown Unknown2000AcitveUnknown2Gasoline Gasoline 6,000 Unknown Unknown Unknown2000ActiveUnknown3 Unknown Unknown 4,000 Steel Unknown UnknownUnknown Closed (12/16/2008)1Unknown4 Gasoline Unknown 4,000 Steel Unknown Unknown UnknownClosed by removal (2000)Unknown5 Gasoline Unknown 8,000 Steel Unknown Unknown UnknownClosed by removal (2000)Unknown6 Unknown Unknown 4,000 Unknown Unknown Unknown UnknownClosed by removal (1986)UnknownAST IDNumberCurrent/LastContentsPreviousContentsCapacity(in gallons)ConstructionDetailsTankDimensions (diameter x length) (ft)Description ofAssociatedPiping & PumpsDate of TankInstallationStatus ofASTWas release associated with AST System? (Y/N)1 Kerosene Unknown Unknown Unknown Unknown Unknown Unknown UnknownUnknown2 Propane Unknown Unknown Unknown Unknown Unknown Unknown UnknownUnknown3 Unknown Unknown Unknown Unknown Unknown Unknown Unknown UnknownUnknownIncidentNumberMaterialReleasedDateofRelease3327 Gasoline 1986Notes: 1. = Per NCDEQ DWM‐UST Section records. Description of ReleaseTable B‐1Site History: UST/AST System & Other Release InformationBilly's Mini MartThe UST owners (Home Oil Company) notified NCDENR that the UST system located at the site lost between 1,000 and 2,000 gallons of gasoline.3121 NC Highway 86 Hillsborough, Orange County, NCIncident Number: 3327Page 1 of 1 Benzenen‐Butylbenzenesec‐ButylbenzeneDi‐isopropyl etherEthylbenzenen‐Hexane2‐HexanoneIsopropylbenzenep‐IsopropyltolueneMethylene Chloride4‐Methyl‐2‐pentanone (MIBK)Methyl tert‐butyl etherNaphthalenen‐PropylbenzeneStyreneToluene1,2,4‐Trimethylbenzene1,3,5‐Trimethylbenzeneo‐Xylenem&p‐XylenesTotal Xylene71‐43‐2 104‐51‐8 135‐98‐8 108‐20‐3 100‐41‐4 110‐54‐3 591‐78‐698‐82‐899‐87‐675‐09‐2 108‐10‐1 1634‐04‐491‐20‐3 103‐65‐1 100‐42‐5 108‐88‐395‐63‐6 108‐67‐895‐47‐6 1330‐20‐7NATW‐1 11/30/202113.8<1.000.5<5.001.35<10.0 <5.00 <5.00 <0.500 <1.00 <5.002.91 1.31 1.82<0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500MW‐4 12/1/2021588 20.5 10.2<50.0190 149<50.0 <50.07.07<10.0 <50.0767 174 83.3<5.0011.8 136 63.3<5.0062.2 62.2MW‐12 12/1/2021131 5.09 6.15 20.9<0.500 <10.0 <5.009.55 4.9 1.07<5.00379 156 0.937<0.5000.844 25.8 9.74 67.7 8.77 76.5MW‐13 12/1/2021559095.1 42.1<50.04440 567 988 193 21.8<10.0414 1330 1010 615 14.8 1880 3700 965 6550 15300 21900MW‐17 12/1/2021293 18.3 8.83 22.6 83.7 212 5.32 49.6 4.92<1.006.79<0.500124 130<0.50011.9 832 234 306 968 1270MW‐18 11/30/2021<0.500 <1.00 <0.500 <5.00 <0.500 <10.0 <5.00 <5.00 <0.500 <1.00 <5.004.56<1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500MW‐19 12/1/2021<0.500 <1.00 <0.500 <5.00 <0.500 <10.0 <5.00 <5.00 <0.500 <1.00 <5.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500Trip Blank 11/30/2021<0.500 <1.00 <0.500 <5.00 <0.500 <10.0 <5.00 <5.00 <0.500 <1.00 <5.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500Trip Blank 12/1/2021<0.500 <1.00 <0.500 <5.00 <0.500 <10.0 <5.00 <5.00 <0.500 <1.00 <5.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.5001 70 70 70 600 NL 40 70 25 5 100 20 6 70 70 600 400 400 500 500 5005,000 5,900 8,800 70,000 80,000 NL 40,000 30,500 11,700 5,000 100,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 85,500 85,500 50,0005 NL NL NL NL NL 5 NL NL NL 100 NL NL 5 1000 5 10000 NL NL NL NLNotes:1)NL = Not Listed2)Result= Result Exceeds Laboratory Detection Limits3)Result= Result Exceeds 2L Standard4)Result= Result Exceeds GCL Value5) US EPA Region IV MCL = Maximum Contaminant Level defined by US EPA Region IV, December 2009. Standard as shown hereon applies only to supply well samples.GCLs for GroundwaterTABLE B‐4SUMMARY OF GROUNDWATER ANALYTICAL RESULTSBilly's Mini MartIncident Number: 33273121 NC Highway 86 Hillsborough, Orange County, NCGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for GroundwaterUS EPA Region IV MCLAll results provided in ug/L (micrograms per liter) or parts per billionNC 2L Standard ‐ North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L .0202Compounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. Analytical Method8260D ‐ Volatile Organic CompoundsSampleIDDateCollectedNC 2L Standard Page 1 of 1 Calculated504.1AcetoneBenzeneBromodichloromethanen‐Butylbenzenesec‐Butylbenzenetert‐ButylbenzeneChloroformChloromethane1,2‐DichloroethaneDi‐isopropyl etherEthylbenzenen‐Hexane2‐HexanoneIsopropylbenzenep‐Isopropyltoluene2‐Butanone (MEK)Methylene Chloride4‐Methyl‐2‐pentanone (MIBK)Methyl tert‐butyl etherNaphthalenen‐PropylbenzeneStyreneToluene1,2,4‐Trimethylbenzene1,3,5‐Trimethylbenzeneo‐Xylenem&p‐XylenesTotal Xylenetert‐Amyl alcohol (TAA)tert‐Amyl Methyl Ether (TAME)*tert‐Butyl alcohol (tert‐butanol, TBA)*Ethylene Dibromide67‐64‐171‐43‐275‐27‐4 104‐51‐8 135‐98‐898‐06‐667‐66‐374‐87‐3 107‐06‐2 108‐20‐3 100‐41‐4 110‐54‐3 591‐78‐698‐82‐899‐87‐678‐93‐375‐09‐2 108‐10‐1 1634‐04‐491‐20‐3 103‐65‐1 100‐42‐5 108‐88‐395‐63‐6 108‐67‐895‐47‐61330‐20‐7NA75‐85‐4 994‐05‐875‐65‐0 106‐93‐43/25/2010ND0.66NR ND ND NA ND ND ND0.6ND NR NA ND ND NA NR NA130ND ND NA ND ND ND ND ND ND NA NR NR NA11/8/2011ND900NR ND ND NA ND ND ND11 70NR NA5.1ND NA NR NA2,300 22 8.3NA18 22 9.8ND ND34.64NA NR NR NA11/29/2012ND140NR0.26 0.28ND0.16NR0.5 7.1 16NR NA1.3ND ND NR ND1,100ND2.2ND1.6 5.3 0.5ND ND4.2NA NR NR NA11/5/2014<5013<1.0 <1.0 <1.0 <1.0 <5.0 <2.5 <1.04.2<20 NR NA <1.0 <1.0 <10 <5.0 <10910<5.0 <1.0 <1.0 <5.0 <20 <20 <20 <40 <40 NA13 210<0.010 5/5/2015<250 <5 <5 <5 <5 <5 <25 <12 <5 <5 <5 NR <50 <5 <5 <50 <25 <50300<25 <5 <5 <25 <5 <5 <5 <10 <10 <250 <534NA10/13/2015<250 <5 <5 <5 <5 <5 <25 <12.5 <5 <5 <5 NR <50 <5 <5 <50 <25 <50404<25 <5 <5 <25 <5 <5 <5 <10 <10 <250 <554.5NA4/19/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <101.06<5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 2.2<0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/4/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.000.963<0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.02.14<1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA3/25/2010ND ND ND ND ND NA ND ND ND0.77ND NR NA ND ND NA NR NA5.2ND ND ND ND ND ND ND ND ND NA NR NR NA11/8/2011ND ND ND ND ND NA ND ND ND ND ND NR NA ND ND NA NR NA1.7ND ND ND ND ND ND ND ND ND NA NR NR NA11/29/2012ND ND ND ND ND ND0.18NR ND0.47ND NR NA ND ND ND NR ND3.8ND ND ND ND ND ND ND ND ND NA NR NR NA11/5/2014<50 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <2.5 <1.0 <1.0 <1.0 NR NA <1.0 <1.0 <10 <5.0 <109.8<5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 <2.0 NA <1.0 <5.0 <0.010 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <1078<5 <1 <1 <5 <1 <1 <1 <2 <2 <501.2 10NA10/13/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <1026<5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/18/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <10.384<1 NR <10 <1 <1 <10 <5 <1045.6<5 <1 <1 <1 <1 <1 <1 <2 <2 <500.623 4.74NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 23<0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <10 <0.64 NA12/30/2019<10 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 23<0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.0 <1.0037.1<1.00 <0.500 <0.50022.7<0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA3/25/2010ND ND NR ND ND ND ND ND ND ND ND NR NA ND ND ND ND ND ND ND ND ND ND ND ND NR NR ND NA NR NR ND11/8/2011ND ND NR ND ND ND ND ND ND ND ND NR NA ND ND ND ND ND ND ND ND ND ND ND ND NR NR ND NA NR NR ND11/29/2012 5/06/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA10/12/20154/18/201712/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<10 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.0 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA11/3/2006NA NA NA NA NA NA NA NA NA NA NA NR NA NA NA NA NA NA NA NA NA NA NA NA NA NR NR NA NA NR NR NA11/4/2008NA NA NA NA NA NA NA NA NA NA NA NR NA NA NA NA NA NA NA NA NA NA NA NA NA NR NR NA NA NR NR NA3/25/20104ND ND ND ND ND3.8NR ND ND ND NR NA ND ND ND ND ND ND ND ND ND ND ND ND NR NR ND NA NR NR ND11/8/201111/29/2012 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/18/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<10 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/4/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA8/26/2009ND ND ND ND ND ND ND ND ND ND ND NR NA ND ND NA NR NA0.64ND ND ND ND ND ND NR NR ND NA NR NR ND3/25/2010ND ND ND ND ND ND ND ND ND ND ND NR NA ND ND NA NR NA ND ND ND ND ND ND ND NR NR ND NA NR NR ND11/8/2011ND ND ND ND ND ND ND ND ND ND ND NR NA ND ND ND NR ND0.32ND ND ND ND ND ND NR NR ND NA NR NR ND11/4/2014<50 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <2.5 <1.0 <1.0 <1.0 NR NA <1.0 <1.0 <10 <5.0 <10 <1.0 <5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 <2.0 NA <1.0 <5.0 NA 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/18/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/4/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.0 <0.500 <10.0 <10.0 <10.0 NA6,000 1 NL 70 70 70 70 3 0.4 70 600 NL 40 70 25 4,000 5 100 20 6 70 70 600 400 400 500 500 500 40 128 10 0.026,000,000 5,000 NL 5,900 8,800 14,750 70,000 3,000 400 70,000 80,000 NL 40,000 30,500 11,700 4,000,000 5,000 100,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 85,500 85,500 50,000 40,000 128,000 10,000 50Notes:1)NLResult2)NAResult3)NRResult4)NDTABLE B‐4ASUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL RESULTSBilly's Mini MartIncident Number: 33273121 NC Highway 86 Hillsborough, Orange County, NCAnalytical Method6200B ‐ Volatile Organic CompoundsSampleIDDateCollectedDW‐1DW‐2MW‐1Well Not Sampled ‐ DryWell Not Sampled ‐ DryWell Not Sampled ‐ DryMW‐2MW‐2RWell Not Sampled ‐ DryWell Not Sampled ‐ DryMW‐3NC 2L Standard GCLs for GroundwaterAll results provided in ug/L (micrograms per liter) or parts per billionNC 2L Standard ‐ North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L .0202= Not ListedCompounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. = Compound Not Analyzed for by Laboratory.= Result Exceeds 2L Standard= Compound Not Reported By Previous Consultants= Result Exceeds GCL ValueGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater= Compound Not Detected.= Result Exceeds Laboratory Detection LimitsPage 1 of 6 Calculated504.1AcetoneBenzeneBromodichloromethanen‐Butylbenzenesec‐Butylbenzenetert‐ButylbenzeneChloroformChloromethane1,2‐DichloroethaneDi‐isopropyl etherEthylbenzenen‐Hexane2‐HexanoneIsopropylbenzenep‐Isopropyltoluene2‐Butanone (MEK)Methylene Chloride4‐Methyl‐2‐pentanone (MIBK)Methyl tert‐butyl etherNaphthalenen‐PropylbenzeneStyreneToluene1,2,4‐Trimethylbenzene1,3,5‐Trimethylbenzeneo‐Xylenem&p‐XylenesTotal Xylenetert‐Amyl alcohol (TAA)tert‐Amyl Methyl Ether (TAME)*tert‐Butyl alcohol (tert‐butanol, TBA)*Ethylene Dibromide67‐64‐171‐43‐275‐27‐4 104‐51‐8 135‐98‐898‐06‐667‐66‐374‐87‐3 107‐06‐2 108‐20‐3 100‐41‐4 110‐54‐3 591‐78‐698‐82‐899‐87‐678‐93‐375‐09‐2 108‐10‐1 1634‐04‐491‐20‐3 103‐65‐1 100‐42‐5 108‐88‐395‐63‐6 108‐67‐895‐47‐61330‐20‐7NA75‐85‐4 994‐05‐875‐65‐0 106‐93‐4TABLE B‐4ASUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL RESULTSBilly's Mini MartIncident Number: 33273121 NC Highway 86 Hillsborough, Orange County, NCAnalytical Method6200B ‐ Volatile Organic CompoundsSampleIDDateCollected3/25/2010ND230NR6.7 5NA ND NR ND5.8 93NR NA37 3.3NA NR NA1,100 110 88NA6 280 91NR NR180.93NA NR NR NA11/8/2011ND40NR13 4.4 0.23 2.0NR ND5.1 29NR NA17 2.6ND NR ND600 48 43ND2 110 26NR NR44.4NA NR NR NA11/5/2014<12002,400<25 <25 <25 <25 <120 <62 <25 <25210NR NA <25 <25 <250 <120 <2502,000 140 25<25 <120470 180 87 590 677NA110 940<0.010 5/5/2015<12001,000<25 <25 <25 <25 <120 <62 <25 <25200NR <25033<25 <250 <120 <250950 210 86<25 <120660 260 49 380 429 1,200<25310NA10/13/2015<501,040<12.38 1.99<1 <5 <2.5 <110.7 108NR <1010.1 1.21<10 <5 <101,190 101 19.7<115.9 172 46.8 8.52 145 153.52 1,140 21.9 254NA4/18/2017<50824<17.93 6.05<1 <5 <2.5 <113.5 127NR <1019.2 5.2<10 <5 <101,700 157 48.5<19.44 167 20.9 1.02 55.6 56.62 1,640 26.9<250 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 2.9<0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/201935 560<0.062 21 11<0.50 <0.076 <0.079 <0.066 11 170NR <0.065 39 7.2<0.24 <0.083 <0.078 980 210 77<0.047 11 79 36 1.4 53 54<0.72 24 310NA5/4/2021<100468<5.0011.3 6.63<20.0 <5.00 <5.00 <5.009.83 160NR <10.027.0<5.00 <50.0 <20.0 <10.0685 146 53.5<5.0010.3 80.6 39.5<5.0075.9 75.9<100 <100197NA12/1/2021<50.0588<5.0020.5 10.2<20.0 <5.00 <5.00 <5.00 <50.0190 149<50.0 <50.07.07<50.0 <10.0 <50.0767 174 83.3<5.0011.8 136 63.3<5.0062.2 62.2NA NA NA NA3/25/2010ND ND ND ND ND ND ND NR ND ND ND NR NA ND ND ND ND ND ND ND ND NA ND ND ND NR NR ND NA NR NR ND11/8/2011ND ND ND ND ND ND ND NR ND ND ND NR NA ND ND ND ND ND ND ND ND NA ND ND ND NR NR ND NA NR NR ND11/29/2012ND ND ND ND ND ND0.22NR ND ND ND NR NA ND ND ND ND ND ND ND ND ND ND ND ND NR NR ND NA NR NR ND11/4/2014<50 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <2.5 <1.0 <1.0 <1.0 NR NA <1.0 <1.0 <10 <5.0 <10 <1.0 <5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 <2.0 NA <1.0 <5.0 NM 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA10/13/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <16.06<1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/19/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA3/25/2010ND ND ND ND ND ND ND ND ND ND ND NR NA ND ND ND ND ND ND ND ND NA ND ND ND NR NR ND NA NR NR ND11/8/2011ND ND ND ND ND ND ND ND ND ND ND NR NA ND ND ND ND ND ND ND ND NA ND ND ND NR NR ND NA NR NR ND11/29/2012ND ND ND ND ND ND0.26ND ND ND NR NA ND ND ND NR ND0.2 0.8 0.65ND ND4.2 2NR NR ND NA NR NR ND 5/06/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA10/13/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/18/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <1 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.50 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA3/25/2010ND ND NR ND ND ND2.5ND ND ND NR NA ND ND ND ND ND ND ND ND NA ND ND ND ND ND ND NA NR NR ND11/4/2014<50 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <2.5 <1.0 <1.0 <1.0 NR NA <1.0 <1.0 <10 <5.0 <10 <1.0 <5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 <2.0 NA <1.0 <5.0 NA 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA10/13/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/19/2017<50 <1 <1 <1 <1 <11.98<2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 3.3<0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<10 <0.048 <0.062 <0.076 <0.076 <0.088 3<0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <1 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.002.50<0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA3/25/2010ND700NR130 37NA ND NR NR ND600NR NA97 56ND250 98 470 290NA630 2,800 860NR NR6,800NA NR NR NA11/8/201111/29/201211/5/2014<5055<1.086 57 1.3<5.0 <2.5 <1.0 <1.0140NR NA170 34<10 <5.0 <10 <1.0330 250<1.014 1200 560 310 660 970NA2<5.0 <0.010 5/06/2015<50340<127 15<1 <5 <2.5 <1 <1150NR <1067 21<10 <599<1320 150<172 1000 390 690 1200 1890<500 <1 <5 NA10/12/2015<5076.6<117.1 7.78<1 <5 <2.5 <1 <152NR <1044.8 4.24<10 <510.8<1176 86.1<19.44 493 157 68.7 249 317.7<500 <10 <50 NA4/18/2017<5024.4<121.911.9<1 <5 <2.5 <1 <143NR <1050.8 25<10 <5 <1012.4 133 162<13.03 541 288 5.83 208 213.83 32.9<15.29NA12/18/2018<0.31 2.4<0.062 23 12<0.088 <0.076 <0.079 <0.066 <0.050 15NR <0.065 31 5.1<0.24 <0.083 <0.078 <0.042 29 89<0.047 0.89 75 130 1.2 9.8 11<0.72 <0.10 <0.64 NA12/30/2019<0.31 34<0.062 47 23 0.62<0.076 <0.079 <0.066 <0.050 68NR <0.065 78 12<0.24 <0.083 <0.078 <0.042 180 180<0.047 3.2 850 340 2.4 390 390 47<0.10 <0.64 NA5/5/2021<10.045.6<0.50029.7 9.12<2.00 <0.500 <0.500 <0.500 <0.500348NR <1.0051.3 5.94<5.00 <2.005.33<1.00264 138<0.50011.9 997 337 21.1 710 731<10.0 <10.0 <10.0 NA6,000 1 NL 70 70 70 70 3 0.4 70 600 NL 40 70 25 4,000 5 100 20 6 70 70 600 400 400 500 500 500 40 128 10 0.026,000,000 5,000 NL 5,900 8,800 14,750 70,000 3,000 400 70,000 80,000 NL 40,000 30,500 11,700 4,000,000 5,000 100,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 85,500 85,500 50,000 40,000 128,000 10,000 50Notes:1)NLResult2)NAResult3)NRResult4)NDMW‐5MW‐4MW‐6MW‐7MW‐8Well Not Sampled ‐ LNAPL PresentWell Not Sampled ‐ LNAPL PresentNC 2L Standard GCLs for GroundwaterAll results provided in ug/L (micrograms per liter) or parts per billion= Not ListedCompounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. = Compound Not Analyzed for by Laboratory.= Result Exceeds 2L StandardNC 2L Standard ‐ North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L .0202= Compound Not Reported By Previous Consultants= Result Exceeds GCL Value= Result Exceeds Laboratory Detection LimitsGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater= Compound Not Detected.Page 2 of 6 Calculated504.1AcetoneBenzeneBromodichloromethanen‐Butylbenzenesec‐Butylbenzenetert‐ButylbenzeneChloroformChloromethane1,2‐DichloroethaneDi‐isopropyl etherEthylbenzenen‐Hexane2‐HexanoneIsopropylbenzenep‐Isopropyltoluene2‐Butanone (MEK)Methylene Chloride4‐Methyl‐2‐pentanone (MIBK)Methyl tert‐butyl etherNaphthalenen‐PropylbenzeneStyreneToluene1,2,4‐Trimethylbenzene1,3,5‐Trimethylbenzeneo‐Xylenem&p‐XylenesTotal Xylenetert‐Amyl alcohol (TAA)tert‐Amyl Methyl Ether (TAME)*tert‐Butyl alcohol (tert‐butanol, TBA)*Ethylene Dibromide67‐64‐171‐43‐275‐27‐4 104‐51‐8 135‐98‐898‐06‐667‐66‐374‐87‐3 107‐06‐2 108‐20‐3 100‐41‐4 110‐54‐3 591‐78‐698‐82‐899‐87‐678‐93‐375‐09‐2 108‐10‐1 1634‐04‐491‐20‐3 103‐65‐1 100‐42‐5 108‐88‐395‐63‐6 108‐67‐895‐47‐61330‐20‐7NA75‐85‐4 994‐05‐875‐65‐0 106‐93‐4TABLE B‐4ASUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL RESULTSBilly's Mini MartIncident Number: 33273121 NC Highway 86 Hillsborough, Orange County, NCAnalytical Method6200B ‐ Volatile Organic CompoundsSampleIDDateCollected3/25/2010ND11,000NR190ND NA ND NR ND89 3,500NR NA140ND NA NR NA8,400 710 260NA7,500 2,600 580NR NR16,300NA NR NR NA11/5/2014<25006,600<50 <50 <50 <50 <250 <120 <5073 2,600NR NA110<50 <500 <250 <5006,100 590 360<503,500 2,700 800 2600 7900 10,500NA660 3,100 0.091 5/06/2015<50006,500<100 <100 <100 <100 <500 <250 <100 <1001,800NR <1000 <100 <100 <1000 <500 <10004,400 540 220<1002,200 1,600 450 1800 5300 7,100 6,500<1001,700NA10/12/2015<50006,730<100 <100 <100 <100 <500 <250 <100 <1001,380NR <1000 <100 <100 <1000 <500 <10004,080<500173<1001,900 1,120 312 1350 3750 5,100 5,320<100843NA4/18/2017<50005,090<100 <100 <100 <100 <500 <250 <10054.2 1,120NR <100047.7<100 <1000 <500 <10003,550 325 168<100956 869 263 938 2790 3,728 4,000 58.4<500 NA12/18/2018<0.31 260<0.062 8.6 4.7<0.088 <0.076 <0.079 <0.066 20 62NR <0.065 13 5<0.24 <0.083 <0.078 590 25 23<0.047 11 27 11 8.8 40 49<0.72 12 350NA12/30/2019<3.1 7,200<0.62 23 11<0.88 <0.76 <0.79 <0.66 51 1,900NR25 70 6.8<2.4 <0.83 93 3,600 580 210<0.47 800 1,400 370 870 4500 5,400 5,500<100 <6.4 NA5/5/202112.4<0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.006.08<1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0109NA3/25/2010ND900NR ND ND NA ND ND ND ND2300NR NA150ND NA NR230 230 740 320 27 1900 3100 750NR NR13400NA NR NR NA11/8/2011ND200NR210 87NA ND ND ND ND2,200NR NA290 66ND NR NA ND870 1,000 73 1,100 2,900 1,700NR NR9,000NA NR NR NA11/29/2012ND190NR76 22ND ND ND ND ND1,300NR NA100ND ND NR ND ND830 360 81 580 2,600 700NR NR4,800NA NR NR NA11/5/2014<2500300<50 <50 <50 <50 <250 <120 <50 <50660NR NA77<50 <500 <250 <50069 360 230<50 <2501,600 490 760 2000 2,760NA <50 <250 <0.010 5/06/2015<2500430<50 <50 <50 <50 <250 <120 <50 <50640NR <50076<50 <500 <250 <500390 800 210<50260 1,700 590 720 1800 2,520 3,100<50 <250 NA10/12/2015<5013.9<19.35 4.74<1<5 <2.5 <1 <140.9NR <1012.8 2.39<10 <5 <102.65 35.9 38.6<15.81 114 67.1 26.6 69.1 95.7 51.5<1 <5 NA4/18/2017<50038.9<16.19 3.87<1 <50 <25 <10 <10196NR <1023.8 8.42<100 <5024 64.4 115 77.2 0.758 27 291 128 56.7 353 409.7 112<10 <50 NA12/18/2018<0.31 0.97<0.062 1.1 0.58<0.088 <0.076 <0.079 <0.066 <0.050 1.2NR <0.065 <0.054 <0.5 <0.24 <0.083 <0.078 1.2<11.2<0.047 <0.044 6 3.8 2.4 3.5 6<0.72 <0.10 <0.64 NA12/30/201925 8.2<0.062 11 3.9<0.088 <0.076 <0.079 <0.066 <0.050 73NR <0.065 14 1.7<0.24 <0.083 12 6.1 50 44<0.047 6.2 130 68 6.3 130 130<0.72 <0.10 <0.64 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA1/8/2011100 130NA33ND NA ND NA ND ND1,500NR NA47ND46NR NA39 33 140 48 1700 1100 270NR NR8300NA NR NR NA11/29/201211/5/2014 5/06/2015<500000 <10000 <10000 <10000 <10000 <10000 <50000 <25000 <10000 <10000120,000NR <100000 <10000 <10000 <100000 <50000 <100000 <10000170,00040000<10000 <5000040000099000180000560000740000<500000 <10000 <50000 NA10/13/20154/18/201712/18/201812/30/2019<3.1 16<0.62 19 12<0.88 <0.76 <0.79 <0.66 <0.50 800NR73 74 10<2.4 <0.83 350 <0.42 1,800 170<549 2,900 840 670 4,900 5,600<7.2 <1.0 <6.4 NA5/5/2021<1,000 <50.0 <50.053.1<50.0 <200 <50.0 <50.0 <50.0 <50.02,880NR <100121<50.0 <500 <200 <100 <1001,310 212<50.0118 3,910 1,100 3,020 259 3,280<1,000 <1,000 <1,000 NA 5/07/2015<50180<13.6 5.6<1 <5 <2.5 <136 7.8NR <1010 10<10 <5 <10980 160 5.8<1 <5140 29 90 66 156<500016 1,800NA10/12/2015<5037.7<11.7 2.76<1 <5 <2.5 <13.5 2.83NR <105.55 2.31<10 <5 <1094.8 137 3.4<1 <580.6 15 60.2 31.5 91.7<2501.01 94.7NA4/18/2017<5051<13.88 5.3<11.11<2.5 <15.73 0.51NR <108.57 14<10 <5 <10135 166 1.26<10.469 118 20.9 67.9 38.7 106.6 367 2.08 314NA12/18/2018<0.31 120<0.062 3.8 4.9<0.51.4<0.079 <0.066 23<0.5 NR <0.065 7.4 5<0.24 <0.083 <0.078 420 230 1.1<0.047 0.77 130 26 80 47 130<0.72 <101,100NA12/30/2019<0.31 93<0.503.9 6<0.501.2<0.079 <0.066 11<0.50 NR <0.065 9.5 4.8<0.24 <2 <0.078 250 1,200 1.3<0.047 0.57 80 18 70 27 97 910<10660NA5/5/2021<10.096.9<0.5005.16 5.40<2.002.34<0.500 <0.50017.3<0.500 NR <1.008.40 4.83<1.00 <2.00 <1.00357 178 0.627<0.5000.518 9.70 5.74 66 3.9 69.9<10.0 <10.0558NA12/1/2021<5.00131<0.5005.09 6.15<2.00 <0.500 <0.500 <0.50020.9<0.500 <10.0 <5.009.55 4.9<5.001.07<5.00379 156 0.937<0.5000.844 25.80 9.74 67.7 8.77 76.5NA NA NA NA6,000 1 NL 70 70 70 70 3 0.4 70 600 NL 40 70 25 4,000 5 100 20 6 70 70 600 400 400 500 500 500 40 128 10 0.026,000,000 5,000 NL 5,900 8,800 14,750 70,000 3,000 400 70,000 80,000 NL 40,000 30,500 11,700 4,000,000 5,000 100,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 85,500 85,500 50,000 40,000 128,000 10,000 50Notes:1)NLResult2)NAResult3)NRResult4)NDMW‐9RWell Not Sampled ‐ LNAPL PresentWell Not Sampled ‐ LNAPL PresentNot Sampled ‐ LNAPL PresentNot Sampled ‐ LNAPL PresentMW‐10RMW‐11Well Not Sampled ‐ DryNC 2L Standard = Compound Not Analyzed for by Laboratory.= Result Exceeds 2L Standard= Compound Not Reported By Previous Consultants= Result Exceeds GCL ValueGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater= Compound Not Detected.GCLs for GroundwaterAll results provided in ug/L (micrograms per liter) or parts per billion= Not ListedCompounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. NC 2L Standard ‐ North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L .0202MW‐12= Result Exceeds Laboratory Detection LimitsPage 3 of 6 Calculated504.1AcetoneBenzeneBromodichloromethanen‐Butylbenzenesec‐Butylbenzenetert‐ButylbenzeneChloroformChloromethane1,2‐DichloroethaneDi‐isopropyl etherEthylbenzenen‐Hexane2‐HexanoneIsopropylbenzenep‐Isopropyltoluene2‐Butanone (MEK)Methylene Chloride4‐Methyl‐2‐pentanone (MIBK)Methyl tert‐butyl etherNaphthalenen‐PropylbenzeneStyreneToluene1,2,4‐Trimethylbenzene1,3,5‐Trimethylbenzeneo‐Xylenem&p‐XylenesTotal Xylenetert‐Amyl alcohol (TAA)tert‐Amyl Methyl Ether (TAME)*tert‐Butyl alcohol (tert‐butanol, TBA)*Ethylene Dibromide67‐64‐171‐43‐275‐27‐4 104‐51‐8 135‐98‐898‐06‐667‐66‐374‐87‐3 107‐06‐2 108‐20‐3 100‐41‐4 110‐54‐3 591‐78‐698‐82‐899‐87‐678‐93‐375‐09‐2 108‐10‐1 1634‐04‐491‐20‐3 103‐65‐1 100‐42‐5 108‐88‐395‐63‐6 108‐67‐895‐47‐61330‐20‐7NA75‐85‐4 994‐05‐875‐65‐0 106‐93‐4TABLE B‐4ASUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL RESULTSBilly's Mini MartIncident Number: 33273121 NC Highway 86 Hillsborough, Orange County, NCAnalytical Method6200B ‐ Volatile Organic CompoundsSampleIDDateCollected 5/07/20159709,200<1011<10 <10 <50 <25 <10 <103,500NR350 84 18 620<50150 3,400 660 250 84 29,000 1,800 460 5200 12000 17,200<2500019 1,000NA10/12/2015<2500697<50 <50 <50 <50 <250 <125 <50 <50829NR <500 <50 <50 <500 <250 <500 <50616 76<502,820605 154132030604,380<2500 <50 <250 NA4/19/2017541 2,930<5033.9<50 <50 <250 <125 <50 <504,780NR655157 53.5<500 <250252 165 1,120 543<506,7103,720 94165701770024,270 1,070<50599NA12/18/2018<3.1 5,500<0.62 390 140<0.88 <0.76 <0.79 <0.66 <0.50 4,200NR630380 72<2.4 <0.83 430 1,400 1,400 65021 4,9004,500 1,20058001600021,000<7.2 <0.10 <6.4 NA12/30/2019<10005,400<6.2 <50 <50 <8.8 <7.6 <7.9 <6.6 <5.0 5,300NR1,000180<8.9 <24 <8.3 430 550 1,000 600<504,0004,300 1,10078001900027,000 2,400<10 <64 NA5/5/2021<1,0004,920<50.061.9<50.0 <200 <50.0 <50.0 <50.0 <50.03,480NR385 117<50.0 <500 <200162 1,230 690 367<50.01,7702,870 73749501050015,500<1,000 <1,000 <1,000 NA12/1/2021<50.05,590<5.0095.1 42.1<20.0 <5.00 <5.00 <5.00 <50.04,440 567988193 21.8<50.0 <10.0414 1,330 1010 615 14.81,8803,700 96565501530021,900NA NA NA NA 5/07/2015<100004,800<200 <200 <200 <200 <1000 <500 <200 <2002,000NR <2000 <200 <200 <2000 <1000 <20004,100<1000 <200 <20011,0001,100 310200048006,800<10000210 1,800NA10/12/20154/18/201712/18/201812/30/2019570 1,100 6 54 25<0.88 <0.76 <0.79 <0.66 18 4,100NR370 150 11 400<0.83 170 230 1,600 470 84 18,000 3,600 9207,100 15,00022,000 1,520<100 <6.4 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.50010.2NR3.31 0.643 1.09<5.00 <2.00 <1.001.55 11.9 0.800<0.500 <0.50018.1 42.1 7.68 20.9 28.6<10.0 <10.0 <10.0 NA 5/07/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <51.1<11.4 3 4.4<50 <1 <5 NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/18/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA5/4/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA 5/07/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <16.3NR <10 <1 <1 <10 <5 <10 <1 <52.7<1 <512 4.1 724 31<50 <1 <5 NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/18/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 <0.72 <0.10 <0.64 NA12/30/2019<10 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <1 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <1 <1.5 <0.72 <0.10 <0.64 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.0 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA 5/07/2015<2500980<50 <50 <50 <50 <250 <120 <50 <501900NR <500110<50 <500 <250 <500260 470 350<50480 2500 660 2800 7400 10200<2500 <50 <250 NA10/12/2015<1250940<25 <25 <25 <25 <125 <62.5 <2544.3 570NR <25042.4<25 <250 <125 <250244 198 127<25132 1050 274 1070 2670 3740 1900<25238NA4/18/2017<1250602<25137 44.8<25 <125 <62.5 <2526.8 597NR <250150 113<250 <125 <250104 413 524<2572.4 3610 1020 1430 4000 5430 863<25399NA12/18/2018<3.1 31<0.62 120 47<0.88 <0.76 <0.79 <0.66 <0.50 64NR <0.65 52 24<2.4 <0.83 <0.78 <0.42 180 180<0.47 5 1,600 620 260 670 930<7.2 <1.0 <6.4 NA12/30/2019<3.1 550<0.62 130 50<0.88 <0.76 <0.79 <0.66 30580NR <0.65 170 21<2.4 <0.83 <0.78 80 470 570<0.47 62 2,500 700 1100 3200 4,300 1,100<1.0 <6.4 NA5/5/2021<100150<5.0021.2 6.52<20.0 <5.00 <5.00 <5.0010.3 91.0NR <10.032.1<5.00 <50.0 <20.0 <10.0 <10.0148 86.8<5.0011.9 600 171 265 767 1,030<100 <100 <100 NA12/1/2021<5.00293<0.50018.3 8.83<2.00 <0.500 <0.500 <0.50022.6 83.7 212 5.32 49.6 4.92<5.00 <1.006.79<0.500124 130<0.50011.9 832 234 306 968 1,270NA NA NA NAMW‐18 11/30/2021<5.00 <0.500 <0.500 <1.00 <0.500 <2.00 <0.500 <0.500 <0.500 <5.00 <0.500 <10.0 <5.00 <5.00 <0.500 <5.00 <1.00 <5.004.56<1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 NA NA NA NAMW‐19 12/1/2021<5.00 <0.500 <0.500 <1.00 <0.500 <2.00 <0.500 <0.500 <0.500 <5.00 <0.500 <10.0 <5.00 <5.00 <0.500 <5.00 <1.00 <5.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 NA NA NA NA3/25/2010ND2,400NR120ND NA ND ND ND ND1300NR NA70NR NA NR120 1,400 410 140ND590 2,400 710NR NR9,000NA NR NR NA11/8/2011ND3,600NR51 22NA ND ND ND ND1300NR NA110 37ND NR NA3,200 590 290ND330 3,900 3900NR NR8,000NA NR NR NA11/29/2012ND1,000NR120 22ND ND ND ND ND480NR NA48 24ND NR ND1,300 850 130 24 120 2,700 2700NRNR3,970NA NR NR NA11/4/2014<12001,800<25 <25 <25 <25 <120 <62 <25 <25380NR NA <25 <25 <250 <120 <2501,600 210 44<25 <120840 380 180 1000 1,180NA31 660<0.010 5/06/2015<25002,300<50 <50 <50 <50 <250 <120 <50 <50640NR <500 <50 <50 <500 <250 <5001,600 280 73<50 <2501,200 520 360 2000 2,360<2500 <50 <250 NA10/12/2015<12501,860<25 <25 <25 <25 <125 <62.5 <25 <25421NR <250 <25 <25 <250 <125 <2501,610 217 39.4<25 <125615 250 96.4 1030 1,126.4 1,430<25363NA4/19/2017<25003,060<50 <50 <50 <50 <250 <125 <5022.3 869NR <50041.7 28.5<500 <250 <5002,360 383 102<5098.3 1,150 414 19.3 1430 1,449.3 2,620 47 1,310NA12/18/2018<0.31 310<0.062 2.3 1.3<0.088 <0.076 <0.079 <0.066 2.1 110NR <0.065 7.7 1.2<0.24 <0.083 <0.078 180 62 20<0.047 9.2 190 67<5210 220<0.72 <10 <0.64 NA12/30/2019<3.1 2,000<0.62 12 7.9<0.88 <0.76 <0.79 <0.66 18540NR <0.65 38 6.2<2.4 <0.83 <0.78 1,400 400 97<0.47 62 680 250 17 620 640 1,800<100 <6.4 NA5/4/2021<10.0230<0.5002.11 0.939<2.00 <0.500 <0.500 <0.5002.97 39.8NR <1.004.70 0.602<5.00 <2.00 <1.00169 19.8 8.05<0.5006.05 49.9 14.0 1.35 26 27.4<10.0 <10.053.1NA3/25/2010ND220NR ND ND ND ND ND ND11 100NR NA ND ND NAND1,200ND16ND ND92 31NR NR205NA NR NR NA11/8/2011ND110NR2.8 2.6ND ND ND ND14 71NR NA5.8 1.1NDNA3,100 22 16ND1.6 58 13NR NR76.8NA NR NR NA11/29/2012ND9NR1.1 1.1ND ND ND ND12 11NR NA0.91ND NDND1,200 8.6 3.6 0.5 0.39 3.8 0.36NR NR3.23NA NR NR NA12/18/201812/30/20195/3/2021TW‐1 11/30/2021<5.00 13.8 <0.500 <1.00 1 <2.00 <0.500 <0.500 <0.500 <5.00 1.35 <10.0 <5.00 <5.00 <0.500 <5.00 <1.00 <5.00 2.91 1.31 1.82 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.5006,000 1 NL 70 70 70 70 3 0.4 70 600 NL 40 70 25 4,000 5 100 20 6 70 70 600 400 400 500 500 500 40 128 10 0.026,000,000 5,000 NL 5,900 8,800 14,750 70,000 3,000 400 70,000 80,000 NL 40,000 30,500 11,700 4,000,000 5,000 100,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 85,500 85,500 50,000 40,000 128,000 10,000 50Notes:1)NLResult2)NAResult3)NRResult4)NDMW‐14Well Not Sampled ‐ LNAPL PresentWell Not Sampled ‐ LNAPL PresentWell Not Sampled ‐ LNAPL PresentNC 2L Standard GCLs for GroundwaterAll results provided in ug/L (micrograms per liter) or parts per billion= Not ListedMW‐15MW‐16SRW‐1SRW‐2Not Sampled Not Sampled Not Sampled = Compound Not Reported By Previous Consultants= Result Exceeds GCL ValueGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater= Compound Not Detected.Compounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. = Compound Not Analyzed for by Laboratory.= Result Exceeds 2L StandardNC 2L Standard ‐ North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L .0202MW‐13MW‐17= Result Exceeds Laboratory Detection LimitsPage 4 of 6 Calculated504.1AcetoneBenzeneBromodichloromethanen‐Butylbenzenesec‐Butylbenzenetert‐ButylbenzeneChloroformChloromethane1,2‐DichloroethaneDi‐isopropyl etherEthylbenzenen‐Hexane2‐HexanoneIsopropylbenzenep‐Isopropyltoluene2‐Butanone (MEK)Methylene Chloride4‐Methyl‐2‐pentanone (MIBK)Methyl tert‐butyl etherNaphthalenen‐PropylbenzeneStyreneToluene1,2,4‐Trimethylbenzene1,3,5‐Trimethylbenzeneo‐Xylenem&p‐XylenesTotal Xylenetert‐Amyl alcohol (TAA)tert‐Amyl Methyl Ether (TAME)*tert‐Butyl alcohol (tert‐butanol, TBA)*Ethylene Dibromide67‐64‐171‐43‐275‐27‐4 104‐51‐8 135‐98‐898‐06‐667‐66‐374‐87‐3 107‐06‐2 108‐20‐3 100‐41‐4 110‐54‐3 591‐78‐698‐82‐899‐87‐678‐93‐375‐09‐2 108‐10‐1 1634‐04‐491‐20‐3 103‐65‐1 100‐42‐5 108‐88‐395‐63‐6 108‐67‐895‐47‐61330‐20‐7NA75‐85‐4 994‐05‐875‐65‐0 106‐93‐4TABLE B‐4ASUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL RESULTSBilly's Mini MartIncident Number: 33273121 NC Highway 86 Hillsborough, Orange County, NCAnalytical Method6200B ‐ Volatile Organic CompoundsSampleIDDateCollected3/25/2010NA0.52NA ND0.51NA ND ND ND ND43NR NA ND ND NA NR NA1,400ND ND NA ND ND ND NR NR ND NA NR NR NA11/8/2011ND ND NA ND NA NA ND ND ND ND47NR NA ND ND ND NR NA2,700ND ND ND ND ND ND NR NR ND NA NR NR NA11/29/201211/5/2014<1000 <20 <20 <20 <20 <20 <20 <2042<20 NR NA <20 <20 <20 <20 <202,200<20 <20 <20 <2027<20 <20 <40 <40 NA150 2,100NA 5/06/2015<1000 <20 <20 <20 <20 <20 <100 <50 <2036<20 NR <200 <20 <20 <200 <100 <2001,700<100 <20 <20 <100 <20 <20 <20 <40 <40 <100094 1,400NA12/18/201812/30/20195/3/20213/25/2010ND ND ND ND NA ND ND NR ND ND ND NR NA ND ND NA NR ND1.4ND ND ND ND ND ND NR NR ND NA NR NR NA11/8/2011ND ND ND ND NA ND1.3NR ND ND ND NR NA ND ND ND NR NA ND ND ND ND ND ND ND NR NR ND NA NR NR NA11/29/2012ND ND ND ND ND ND2.5NR ND ND ND NR NA ND ND ND NR ND0.85ND ND ND ND ND ND NR NR ND NA NR NR NA11/4/2014<50 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <2.5 <1.0 <1.0 <1.0 NR NA <1.0 <1.0 <10 <5.0 <10 <1.0 <5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 <2.0 NA <1.0 <5.0 NA 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR NA <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 NA NA NA NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/19/2017<50 <1 <1 <1 <1 <10.807<2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<10 <0.048 2.5<0.076 <0.076 <0.088 8.6<0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA12/30/201932<0.048 <0.062 <0.076 <0.076 <0.088 1.3<0.50 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA1/20/2020<0.31 <0.048 <0.062 <0.076 <0.076 <0.72 <0.076 17<0.066 <27 <0.061 NR <0.050 <0.054 <0.089 <0.065 <0.24 <0.083 <0.042 <0.078 <0.19 <0.087 <0.10 <0.098 <0.062 <0.076 <0.044 <0.060 <0.044 <0.12 <0.12 NA5/5/2021<10.0 <0.5001.34<0.500 <0.500 <2.004.23<0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA3/25/2010ND ND ND ND NA NA ND NR ND ND ND NR NA ND ND NA NR ND ND ND ND ND ND ND ND NR NR ND NA NR NR NA11/8/201126ND ND ND NA NA0.81NR ND ND ND NR NA ND ND ND NR NA0.94ND ND ND ND ND ND NR NR ND NA NR NR NA11/29/2012ND ND ND ND ND ND97NR ND ND ND NR NA ND ND83NR ND0.77ND ND ND ND ND ND NR NR ND NA NR NR NA 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR NA <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 NA NA NA NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/19/2017<50 <1 <1 <1 <1 <10.64<2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<10 <0.048 <0.062 <0.076 <0.076 <0.088 1.1<0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA12/30/2019<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 <0.50 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.000.782<0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA 5/6/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR NA <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 NA NA NA NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/19/2017<50 <1 <1 <1 <1 <10.656<2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<10 <0.048 <0.062 <0.076 <0.076 <0.088 <0.5 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA12/30/2019<0.31 <0.048 <0.062 <0.076 <0.076 <0.088 1.2<0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA1/20/2020<0.31 <0.048 <0.062 <0.076 <0.076 <0.72 0.94 8.2<0.066 <27 <0.061 NR <0.050 <0.054 <0.089 <0.065 <0.24 <0.083 <0.042 <0.078 <0.19 <0.087 <0.10 <0.098 <0.062 <0.076 <0.044 <0.060 <0.044 <0.12 <0.12 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.001.97<0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA11/8/2011ND ND ND ND ND NA97NR ND26ND NR NA ND ND ND ND ND83ND ND ND ND ND ND NR NR0.94NA NR NR NA11/29/2012ND ND ND ND ND ND1.1NR ND ND ND NR NA ND ND ND ND ND ND ND ND ND ND ND ND NR NR ND NA NR NR NA 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR NA <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 NA NA NA NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/19/2017<50 <1 <1 <1 <1 <10.628<2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<10 <0.048 <0.062 <0.076 <0.076 <0.088 0.87<0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA12/30/2019<10 <0.048 <0.062 <0.076 <0.076 <0.088 1.4<0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA1/20/2020<0.31 <0.048 <0.062 <0.076 <0.076 <0.72 1.4 7.9<0.066 <27 <0.061 NR <0.050 <0.054 <0.089 <0.065 <0.24 <0.083 <0.042 <0.078 <0.19 <0.087 <0.10 <0.098 <0.062 <0.076 <0.044 <0.060 <0.044 <0.12 <0.12 NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.000.601<0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA6,000 1 NL 70 70 70 70 3 0.4 70 600 NL 40 70 25 4,000 5 100 20 6 70 70 600 400 400 500 500 500 40 128 10 0.026,000,000 5,000 NL 5,900 8,800 14,750 70,000 3,000 400 70,000 80,000 NL 40,000 30,500 11,700 4,000,000 5,000 100,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 85,500 85,500 50,000 40,000 128,000 10,000 50NL 5 NL NL NL 5 NL NL 7 NL NL NL 5 NL NL NL NL 100 NL NL 5 1000 5 10000 NL NL NL NL NL NL NL NLNotes:1)NLResult2)NAResult3)NRResult4)ND5)RW‐3Well Not Sampled ‐ DryNot Sampled Not Sampled Not Sampled NC 2L Standard GCLs for GroundwaterUS EPA Region IV MCLWSW‐1WSW‐2WSW‐3WSW‐4All results provided in ug/L (micrograms per liter) or parts per billion= Not ListedCompounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. = Compound Not Analyzed for by Laboratory.= Result Exceeds 2L StandardUS EPA Region IV MCL = Maximum Contaminant Level defined by US EPA Region IV, December 2009. Standard as shown hereon applies only to supply well samples.NC 2L Standard ‐ North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L .0202= Compound Not Reported By Previous Consultants= Result Exceeds GCL ValueGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater= Compound Not Detected.= Result Exceeds Laboratory Detection LimitsPage 5 of 6 Calculated504.1AcetoneBenzeneBromodichloromethanen‐Butylbenzenesec‐Butylbenzenetert‐ButylbenzeneChloroformChloromethane1,2‐DichloroethaneDi‐isopropyl etherEthylbenzenen‐Hexane2‐HexanoneIsopropylbenzenep‐Isopropyltoluene2‐Butanone (MEK)Methylene Chloride4‐Methyl‐2‐pentanone (MIBK)Methyl tert‐butyl etherNaphthalenen‐PropylbenzeneStyreneToluene1,2,4‐Trimethylbenzene1,3,5‐Trimethylbenzeneo‐Xylenem&p‐XylenesTotal Xylenetert‐Amyl alcohol (TAA)tert‐Amyl Methyl Ether (TAME)*tert‐Butyl alcohol (tert‐butanol, TBA)*Ethylene Dibromide67‐64‐171‐43‐275‐27‐4 104‐51‐8 135‐98‐898‐06‐667‐66‐374‐87‐3 107‐06‐2 108‐20‐3 100‐41‐4 110‐54‐3 591‐78‐698‐82‐899‐87‐678‐93‐375‐09‐2 108‐10‐1 1634‐04‐491‐20‐3 103‐65‐1 100‐42‐5 108‐88‐395‐63‐6 108‐67‐895‐47‐61330‐20‐7NA75‐85‐4 994‐05‐875‐65‐0 106‐93‐4TABLE B‐4ASUMMARY OF HISTORICAL GROUNDWATER ANALYTICAL RESULTSBilly's Mini MartIncident Number: 33273121 NC Highway 86 Hillsborough, Orange County, NCAnalytical Method6200B ‐ Volatile Organic CompoundsSampleIDDateCollected 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR NA <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 NA NA NA NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/19/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/2018<10 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA12/30/2019<10 <0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.00 <0.500 <0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA3/25/2010ND ND ND ND NA NA0.79NA ND ND ND NR NA ND ND NA NR ND ND ND ND ND ND ND ND NR NR ND NA NR NR NA11/8/2011ND ND ND ND NA NA ND NA ND ND ND NR NA ND ND ND NR NA ND ND ND ND ND ND ND NR NR ND NA NR NR NA11/29/2012ND ND ND ND ND ND0.37NA ND ND ND NR NA ND ND ND NR ND0.77ND ND ND ND ND ND NR NR ND NA NR NR NA11/4/2014<50 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <2.5 <1.0 <1.0 <1.0 NR NA <1.0 <1.0 <10 <5.0 <10 <1.0 <5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 <2.0 NA <1.0 <5.0 NA 5/5/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR NA <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 NA NA NA NA10/12/2015<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <5 <1 <1 <1 <2 <2 <50 <1 <5 NA4/19/2017<50 <1 <1 <1 <1 <1 <5 <2.5 <1 <1 <1 NR <10 <1 <1 <10 <5 <10 <1 <5 <1 <1 <1 <1 <1 <1 <2 <2 <50 <1 <5 NA12/18/201825<0.048 <0.062 <0.076 <0.076 <0.088 <0.076 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA12/30/2019<10 <0.048 <0.062 <0.076 <0.076 <0.088 <0.50 <0.079 <0.066 <0.050 <0.061 NR <0.065 <0.054 <0.089 <0.24 <0.083 <0.078 <0.042 <0.19 <0.087 <0.047 <0.044 <0.054 <0.076 <0.044 <0.12 <0.15 NA NA NA NA5/5/2021<10.0 <0.500 <0.500 <0.500 <0.500 <2.001.47<0.500 <0.500 <0.500 <0.500 NR <1.00 <0.500 <0.500 <5.00 <2.00 <1.00 <1.00 <1.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <1.00 <0.500 <10.0 <10.0 <10.0 NA11/8/2011ND ND ND ND NA NA ND NA ND ND ND NR NA ND ND ND ND ND ND ND ND ND ND ND ND NR NR ND NA NR NR NA11/29/2012ND ND ND ND ND ND ND NA ND ND ND NR NA ND ND ND ND ND ND ND ND ND ND ND ND NR NR ND NA NR NR NA11/4/2014<50 <1.0 <1.0 <1.0 <1.0 <1.0 <5.0 <2.5 <1.0 <1.0 <1.0 NR NA <1.0 <1.0 <10 <5.0 <10 <1.0 <5.0 <1.0 <1.0 <5.0 <1.0 <1.0 <1.0 <2.0 <2.0 NA <1.0 <5.0 NA4/19/201712/18/20186,000 1 NL 70 70 70 70 3 0.4 70 600 NL 40 70 25 4,000 5 100 20 6 70 70 600 400 400 500 500 500 40 128 10 0.026,000,000 5,000 NL 5,900 8,800 14,750 70,000 3,000 400 70,000 80,000 NL 40,000 30,500 11,700 4,000,000 5,000 100,000 20,000 6,000 26,100 70,000 260,000 28,500 24,100 85,500 85,500 50,000 40,000 128,000 10,000 50NL 5 NL NL NL 5 NL NL 7 NL NL NL 5 NL NL NL NL 100 NL NL 5 1000 5 10000 NL NL NL NL NL NL NL NLNotes:1)NLResult2)NAResult3)NRResult4)ND5)WSW‐5= Compound Not Analyzed for by Laboratory.= Result Exceeds 2L StandardWSW‐6WSW‐7Not SampledNot SampledNC 2L Standard GCLs for GroundwaterNC 2L Standard ‐ North Carolina Groundwater Quality Standard as per NC Administrative Code 15A NCAC 02L .0202= Compound Not Reported By Previous Consultants= Result Exceeds GCL ValueUS EPA Region IV MCLAll results provided in ug/L (micrograms per liter) or parts per billion= Not ListedCompounds analyzed for by laboratory but not listed were not detected above laboratory detection limits. See the laboratory report included in the Appendix for a full list of constituents. US EPA Region IV MCL = Maximum Contaminant Level defined by US EPA Region IV, December 2009. Standard as shown hereon applies only to supply well samples.= Result Exceeds Laboratory Detection LimitsGCLs for Groundwater = NCDEQ UST Section Gross Contamination Levels for Groundwater= Compound Not Detected.Page 6 of 6 Easting NorthingWSW-1 9866485561 3121 NC Highway 86 N Kittaney, Inc.3121 NC Highway 86 North Hillsborough, NC 27278Sole source Unknown Unknown 123 Up-gradient 1964673.17 868647.98WSW-2 9866488257 117 Phelps Road Steven D Bledsoe505 Phelps Road Hillsborough, NC 27278Sole source Unknown Unknown 250 Down-gradient 1964575.64 868305.58WSW-3 9866486069 3105 NC Highway 86 N Laverne W James288 Atwater Street Yanceyville, NC 27379Sole source Unknown Unknown 248 Down-gradient 1964575.64 868305.58WSW-4 9866482247 3118 NC Highway 86 NJeannine R. Murray Whitfield6005 Mt. Herman Church Durham, NC 27705Sole source Unknown Unknown 341 Down-gradient 1964250.52 868583.00WSW-5 9866580465 201 Phelps RoadArtis Eugene Summey Dianne T Summey201 Phelps Road Hillsborough, NC 27278Sole source Unknown Unknown 453 Cross-gradient 1965040.81 868575.50WSW-6 9866488975 118 Phelps RoadRobert L. Bates Alesha R. Bates118 Phelps Road Hillsborough, NC 27278Sole source Unknown Unknown 456 Up-gradient 1964857.04 868921.051)2)3)WR completed a well survey at the site in 2002.Location Relative to Groundwater FlowIncident Number: 3327Well Coordinates(NC State Plane NAD 83 Feet)Property AddressWell IDBOLD, Italicized owner names represent "new" owners of properties shown. Well Screen Interval(feet)Well Distance from Source Area(feet)Property OwnerNotes: Well location addresses and property owner information was obtained from the Orange County GIS Department. Property ownership information current as of May 20, 2021.ParcelNumberWell Depth(feet)TABLE B-5PUBLIC & PRIVATE WATER SUPPLY WELL INFORMATIONBilly's Mini Mart3121 NC Highway 86 Hillsborough, Orange County, NCProperty Owner AddressWell UsePage 1 of 1 Easting NorthingMW‐1 Unknown 2 30 15 15 ‐ 30 101.58‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964476.82 868535.62MW‐2 UnknownMW‐2R 3/22/2010 2 35 20 20 ‐ 35 98.36‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964626.77 868637.60MW‐3 Unknown 2 48 28 28 ‐ 48 98.67‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964572.47 868536.85MW‐4 Unknown 2 39 24 24 ‐ 39 99.27 12/1/2021 29.98‐‐‐‐69.29 1964540.45 868542.18MW‐5 Unknown 2 39 24 24 ‐ 39 100.82‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964457.79 868649.55MW‐6 Unknown 2 39 24 24 ‐ 39 99.90‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964530.60 868483.10MW‐7 Unknown 2 39 24 24 ‐ 39 103.42‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964392.66 868477.36MW‐8 Unknown 2 39 9 9 ‐ 39 100.04‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964516.23 868513.05MW‐9 Unknown 2 30 15 15 ‐ 30‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐MW‐9R 3/22/2010 2 40 25 25 ‐ 40 100.83‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964504.32 868547.51MW‐10 Unknown 2 30 15 15 ‐ 30‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐MW‐10R 3/22/2010 2 40 25 25 ‐ 40 100.98‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964503.09 868525.77MW‐11 3/22/2010 2 35 20 20 ‐ 35 100.00‐‐‐‐ ‐‐‐‐ ‐‐‐‐ ‐‐‐‐1964521.26 868579.53MW‐12 5/6/2015 2 39 24 24 ‐ 39 99.02 12/1/2020 28.09‐‐‐‐70.93 1964542.48 868659.90MW‐135/6/2015 2 39 24 24 ‐ 39 100.52 12/1/2021 29.61‐‐‐‐70.91 1964496.32 868616.51MW‐14 5/7/2015 2 39 24 24 ‐ 39 99.25‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1964547.71 868596.96MW‐15 5/7/2015 2 39 24 24 ‐ 39 97.96‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1964612.71 868552.54MW‐16 5/6/2015 2 39 24 24 ‐ 39 98.72‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1964600.28 868632.40MW‐17 5/6/2015 2 39 24 24 ‐ 39 98.40 12/1/2021 27.60‐‐‐‐70.80 1964608.36 868674.28MW‐18 11/30/2021 2 40 25 25‐40 98.24 11/30/2021 27.69‐‐‐‐70.55‐‐‐‐‐‐‐‐MW‐19 11/30/2021 2 40 25 25‐40 98.82 12/1/2021 27.74‐‐‐‐71.08‐‐‐‐‐‐‐‐TW‐1 11/30/2021 1 40 25 25‐40‐‐‐‐11/30/2021 28.50‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐DW‐1 Unknown 2 59 54 54 ‐ 59 99.18‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1964536.35 868540.13DW‐2 Unknown 2 80 75 75 ‐ 80 99.29‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1964536.76 868531.92RW‐1 UnknownRW‐2 UnknownRW‐3 Unknown 2 30.0 Unknown Unknown‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1964545.62 868560.47SRW‐1 Unknown 6 50 10 10 ‐ 50 99.60‐‐‐‐‐‐‐‐‐‐‐‐#VALUE! 1964522.39 868536.85SRW‐2 Unknown 6 Unknown Unknown Unknown 100.90‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐1964473.12 868556.951)2)3)4)5) LNAPL = Light Non‐Aqueous Phase Liquid NM = Not MeasuredTotal Depth (feet)Date Water Level MeasuredScreened Interval (feet)Destroyed Well construction information was obtained from previous consultants reports, excepting construction data for MW‐12, MW‐13, MW‐14, MW‐15, MW‐16 and MW‐17. Top‐of‐Casing elevations for all wells excepting MW‐12, MW‐13, MW‐14, MW‐15, MW‐16 and MW‐17 were determined by previous consultants and are relative to an elevation of 100.00 feet established at the TOC for MW‐11. Top‐of‐Casing elevations for wells MW‐18 & MW‐19 surveyed on November 30, 2021.Depth‐to‐Water from Top‐of‐Casing(feet) Groundwater elevation calculated by: (Top‐of‐Casing ‐ Depth‐to‐Water) + (LNAPL Thickness x 0.8581)TABLE B‐73121 NC Highway 86 MONITORING & REMEDIATION WELL CONSTRUCTION INFORMATIONWell Casing Diameter(inches)LNAPL Thickness(feet)DestroyedDestroyedTop‐of‐Casing Elevation (feet)Well Casing Depth (feet)Billy's Mini MartHillsborough, Orange County, NCNotes: Date InstalledGroundwaterElevation (feet)Incident Number: 3327Well IDWell Coordinates(NC State Plane NAD 83 Feet)Page 1 of 1 Well ID Screened Interval (feet) Top‐of‐Casing Elevation (feet) Date Water Level Measured Depth‐to‐ LNAPL (feet) Depth‐to‐Water Uncorrected (feet) LNAPL Thickness (feet) Depth‐to‐Water Corrected (feet) Groundwater Surface Elevation (feet) 5/3/2021 ‐‐‐18.05 ‐‐‐18.05 83.53 12/30/2019 ‐‐‐28.88 ‐‐‐28.88 72.70 11/29/2018 ‐‐‐26.23 ‐‐‐26.23 75.35 4/18/2017 ‐‐‐29.56 ‐‐‐29.56 72.02 10/12/2015 ‐‐‐Dry ‐‐‐Dry ‐‐‐ 5/5/2015 ‐‐‐26.21 ‐‐‐26.21 75.37 11/4/2014 ‐‐‐Dry ‐‐‐Dry ‐‐‐ 11/29/2012 ‐‐‐Dry ‐‐‐Dry ‐‐‐ 11/8/2011 ‐‐‐28.89 ‐‐‐28.89 72.69 3/25/2010 ‐‐‐27.36 ‐‐‐27.36 74.22 8/14/2009 ‐‐‐28.84 ‐‐‐28.84 72.74 11/4/2008 ‐‐‐Dry ‐‐‐Dry ‐‐‐ 5/3/2021 ‐‐‐14.90 ‐‐‐14.90 83.46 12/30/2019 ‐‐‐27.15 ‐‐‐27.15 71.21 11/29/2018 ‐‐‐21.58 ‐‐‐21.58 76.78 4/18/2017 ‐‐‐26.43 ‐‐‐26.43 71.93 10/12/2015 ‐‐‐28.13 ‐‐‐28.13 70.23 5/5/2015 ‐‐‐21.95 ‐‐‐21.95 76.41 11/4/2014 ‐‐‐27.62 ‐‐‐27.62 70.74 11/29/2012 ‐‐‐33.98 ‐‐‐33.98 64.38 11/8/2011 ‐‐‐Dry ‐‐‐Dry ‐‐‐ 3/25/2010 ‐‐‐23.95 ‐‐‐23.95 74.41 5/3/2021 ‐‐‐23.13 ‐‐‐23.13 75.54 12/30/2019 ‐‐‐30.93 ‐‐‐30.93 67.74 11/29/2018 ‐‐‐27.64 ‐‐‐27.64 71.03 4/18/2017 ‐‐‐30.78 ‐‐‐30.78 67.89 10/12/2015 ‐‐‐30.05 ‐‐‐30.05 68.62 5/5/2015 ‐‐‐27.39 ‐‐‐27.39 71.28 11/4/2014 ‐‐‐31.33 ‐‐‐31.33 67.34 11/29/2012 ‐‐‐35.50 ‐‐‐35.50 63.17 11/8/2011 ‐‐‐35.82 ‐‐‐35.82 62.85 3/25/2010 ‐‐‐28.07 ‐‐‐28.07 70.60 8/14/2009 ‐‐‐31.84 ‐‐‐31.84 66.83 11/4/2008 ‐‐‐33.58 ‐‐‐33.58 65.09 12/1/2021 ‐‐‐29.98 29.98 69.29 5/3/2021 ‐‐‐16.80 ‐‐‐16.80 82.47 12/30/2019 ‐‐‐28.37 ‐‐‐28.37 70.90 11/29/2018 ‐‐‐24.16 ‐‐‐24.16 75.11 4/18/2017 ‐‐‐27.71 ‐‐‐27.71 71.56 10/12/2015 ‐‐‐28.20 ‐‐‐28.20 71.07 5/5/2015 ‐‐‐24.13 ‐‐‐24.13 75.14 11/4/2014 ‐‐‐29.23 ‐‐‐29.23 70.04 11/29/2012 ‐‐‐35.34 ‐‐‐35.34 63.93 11/8/2011 ‐‐‐35.22 ‐‐‐35.22 64.05 3/25/2010 ‐‐‐25.32 ‐‐‐25.32 73.95 8/14/2009 ‐‐‐29.36 ‐‐‐29.36 69.91 11/4/2008 ‐‐‐NM ‐‐‐‐‐‐NM MW‐424 ‐ 39 99.27 MW‐115 ‐ 30 101.58 MW‐2R MW‐3 98.3620 ‐ 35 Incident Number: 3327 TABLE B‐9 CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & LNAPL THICKNESS Billy's Mini Mart 3121 NC Highway 86 Hillsborough, Orange County, NC 28 ‐ 48 98.67 Page 1 of 5 Well ID Screened Interval (feet) Top‐of‐Casing Elevation (feet) Date Water Level Measured Depth‐to‐ LNAPL (feet) Depth‐to‐Water Uncorrected (feet) LNAPL Thickness (feet) Depth‐to‐Water Corrected (feet) Groundwater Surface Elevation (feet) Incident Number: 3327 TABLE B‐9 CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & LNAPL THICKNESS Billy's Mini Mart 3121 NC Highway 86 Hillsborough, Orange County, NC 5/3/2021 ‐‐‐16.72 ‐‐‐16.72 84.10 12/30/2019 ‐‐‐29.27 ‐‐‐29.27 71.55 11/29/2018 ‐‐‐25.13 ‐‐‐25.13 75.69 4/18/2017 ‐‐‐28.46 ‐‐‐28.46 72.36 10/12/2015 ‐‐‐29.41 ‐‐‐29.41 71.41 5/5/2015 ‐‐‐25.14 ‐‐‐25.14 75.68 11/4/2014 ‐‐‐30.28 ‐‐‐30.28 70.54 11/29/2012 ‐‐‐36.96 ‐‐‐36.96 63.86 11/8/2011 ‐‐‐36.63 ‐‐‐36.63 64.19 3/25/2010 ‐‐‐26.34 ‐‐‐26.34 74.48 8/14/2009 ‐‐‐30.44 ‐‐‐30.44 70.38 11/4/2008 ‐‐‐34.33 ‐‐‐34.33 66.49 5/3/2021 ‐‐‐23.80 ‐‐‐23.80 76.10 12/30/2019 ‐‐‐32.00 ‐‐‐32.00 67.90 11/29/2018 ‐‐‐27.78 ‐‐‐27.78 72.12 4/18/2017 ‐‐‐31.84 ‐‐‐31.84 68.06 10/12/2015 ‐‐‐31.16 ‐‐‐31.16 68.74 5/5/2015 ‐‐‐28.43 ‐‐‐28.43 71.47 11/4/2014 ‐‐‐NM ‐‐‐ ‐‐‐NM 11/29/2012 ‐‐‐36.96 ‐‐‐36.96 62.94 11/8/2011 ‐‐‐36.63 ‐‐‐36.63 63.27 3/25/2010 ‐‐‐26.34 ‐‐‐26.34 73.56 8/14/2009 ‐‐‐30.44 ‐‐‐30.44 69.46 11/4/2008 ‐‐‐34.33 ‐‐‐34.33 65.57 5/3/2021 ‐‐‐19.80 ‐‐‐19.80 83.62 12/30/2019 ‐‐‐32.17 ‐‐‐32.17 71.25 11/29/2018 ‐‐‐NM ‐‐‐ ‐‐‐ ‐‐‐ 4/18/2017 ‐‐‐31.44 ‐‐‐31.44 71.98 10/12/2015 ‐‐‐32.18 ‐‐‐32.18 71.24 5/5/2015 ‐‐‐28.03 ‐‐‐28.03 83.04 11/4/2014 ‐‐‐33.12 ‐‐‐33.12 70.30 11/29/2012 ‐‐‐Dry ‐‐‐ ‐‐‐Dry 11/8/2011 ‐‐‐Dry ‐‐‐ ‐‐‐Dry 3/25/2010 ‐‐‐29.16 ‐‐‐29.16 74.26 8/14/2009 ‐‐‐33.28 ‐‐‐33.28 70.14 11/4/2008 ‐‐‐37.01 ‐‐‐37.01 66.41 5/3/2021 ‐‐‐17.00 ‐‐‐17.00 83.04 12/30/2019 ‐‐‐28.93 ‐‐‐28.93 71.11 11/29/2018 ‐‐‐24.77 ‐‐‐24.77 75.27 4/18/2017 ‐‐‐28.26 ‐‐‐28.26 71.78 10/12/2015 ‐‐‐28.98 ‐‐‐28.98 71.06 5/5/2015 ‐‐‐24.85 ‐‐‐24.85 75.19 11/4/2014 ‐‐‐29.93 ‐‐‐29.93 70.11 2/15/2013 ‐‐‐34.17 ‐‐‐34.17 65.87 2/11/2013 ‐‐‐34.23 ‐‐‐34.23 65.81 11/29/2012 ‐‐‐36.52 ‐‐‐36.52 63.52 11/8/2011 ‐‐‐36.06 ‐‐‐36.06 63.98 3/25/2010 ‐‐‐25.98 ‐‐‐25.98 74.06 8/14/2009 ‐‐‐31.20 ‐‐‐31.20 68.84 11/4/2008 ‐‐‐33.65 ‐‐‐33.65 66.39 5/3/2021 ‐‐‐17.03 ‐‐‐17.03 83.80 12/30/2019 ‐‐‐29.73 ‐‐‐29.73 71.10 11/29/2018 ‐‐‐25.61 ‐‐‐25.61 75.22 4/18/2017 ‐‐‐29.06 ‐‐‐29.06 71.77 10/12/2015 ‐‐‐29.75 ‐‐‐29.75 71.08 5/5/2015 ‐‐‐25.64 ‐‐‐25.64 75.19 11/4/2014 ‐‐‐30.75 ‐‐‐30.75 70.08 11/29/2012 ‐‐‐34.80 ‐‐‐34.80 66.03 11/8/2011 ‐‐‐Dry ‐‐‐Dry Dry 3/25/2010 ‐‐‐26.77 ‐‐‐26.77 74.06 MW‐5 MW‐6 MW‐7 MW‐8 MW‐9R 9 ‐ 39 25 ‐ 40 100.83 100.04 24 ‐ 39 103.42 99.9024 ‐ 39 100.8224 ‐ 39 Page 2 of 5 Well ID Screened Interval (feet) Top‐of‐Casing Elevation (feet) Date Water Level Measured Depth‐to‐ LNAPL (feet) Depth‐to‐Water Uncorrected (feet) LNAPL Thickness (feet) Depth‐to‐Water Corrected (feet) Groundwater Surface Elevation (feet) Incident Number: 3327 TABLE B‐9 CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & LNAPL THICKNESS Billy's Mini Mart 3121 NC Highway 86 Hillsborough, Orange County, NC 5/3/2021 ‐‐‐17.52 ‐‐‐17.52 83.46 12/30/2019 ‐‐‐29.93 ‐‐‐29.93 71.05 11/29/2018 ‐‐‐25.61 ‐‐‐25.61 75.37 4/18/2017 ‐‐‐29.24 ‐‐‐29.24 71.74 10/12/2015 ‐‐‐29.93 ‐‐‐29.93 71.05 5/5/2015 ‐‐‐25.81 ‐‐‐25.81 75.17 11/4/2014 ‐‐‐30.91 ‐‐‐30.91 70.07 11/29/2012 ‐‐‐37.26 ‐‐‐37.26 63.72 11/8/2011 ‐‐‐37.04 ‐‐‐37.04 63.94 3/25/2010 ‐‐‐26.86 ‐‐‐26.86 74.12 5/3/2021 ‐‐‐15.85 ‐‐‐15.85 84.15 12/30/2019 ‐‐‐26.33 ‐‐‐26.33 73.67 11/29/2018 22.73 22.75 0.02 22.75 78.23 4/18/2017 27.92 28.18 0.26 27.96 83.46 10/12/2015 26.91 27.12 0.21 26.94 84.15 5/5/2015 ‐‐‐24.33 ‐‐‐24.33 75.67 11/4/2014 29.51 29.52 0.01 29.51 70.49 11/29/2012 ‐‐‐35.04 ‐‐‐35.04 64.96 11/8/2011 ‐‐‐35.00 ‐‐‐35.00 65.00 3/25/2010 ‐‐‐24.60 ‐‐‐24.60 75.40 12/1/2021 ‐‐‐28.09 ‐‐‐28.09 70.93 5/3/2021 ‐‐‐15.45 ‐‐‐15.45 83.57 12/30/2019 ‐‐‐27.65 ‐‐‐27.65 71.37 11/29/2018 ‐‐‐23.53 ‐‐‐23.53 75.49 4/18/2017 ‐‐‐26.92 ‐‐‐26.92 72.10 10/12/2015 ‐‐‐27.52 ‐‐‐27.52 71.50 5/7/2015 ‐‐‐23.50 ‐‐‐23.50 75.52 12/1/2021 ‐‐‐29.61 ‐‐‐29.61 70.91 5/3/2021 ‐‐‐16.95 ‐‐‐16.95 83.57 12/30/2019 ‐‐‐29.14 ‐‐‐29.14 71.38 11/29/2018 ‐‐‐25.11 ‐‐‐25.11 75.41 4/18/2017 ‐‐‐28.52 ‐‐‐28.52 72.00 10/12/2015 ‐‐‐29.22 ‐‐‐29.22 71.30 5/7/2015 ‐‐‐25.12 ‐‐‐25.12 75.40 5/3/2021 ‐‐‐16.17 ‐‐‐16.17 83.08 12/30/2019 ‐‐‐28.11 ‐‐‐28.11 71.14 11/29/2018 23.90 23.91 0.01 23.91 75.34 4/18/2017 27.44 27.69 0.25 27.48 71.77 10/12/2015 28.12 28.15 0.03 28.12 71.13 5/7/2015 ‐‐‐24.21 ‐‐‐24.21 75.04 5/3/2021 ‐‐‐18.86 ‐‐‐18.86 79.10 12/30/2019 ‐‐‐24.47 ‐‐‐24.47 73.49 11/29/2018 ‐‐‐19.92 ‐‐‐19.92 78.04 4/18/2017 ‐‐‐27.12 ‐‐‐27.12 70.84 10/12/2015 ‐‐‐26.24 ‐‐‐26.24 71.72 5/7/2015 ‐‐‐30.55 ‐‐‐30.55 67.41 MW‐13 24 ‐ 39 99.2524 ‐ 39 99.0224 ‐ 39MW‐12 MW‐10R 20 ‐ 35 100.00 100.98 MW‐15 24 ‐ 39 97.96 MW‐11 MW‐14 25 ‐ 40 100.52 Page 3 of 5 Well ID Screened Interval (feet) Top‐of‐Casing Elevation (feet) Date Water Level Measured Depth‐to‐ LNAPL (feet) Depth‐to‐Water Uncorrected (feet) LNAPL Thickness (feet) Depth‐to‐Water Corrected (feet) Groundwater Surface Elevation (feet) Incident Number: 3327 TABLE B‐9 CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & LNAPL THICKNESS Billy's Mini Mart 3121 NC Highway 86 Hillsborough, Orange County, NC 5/3/2021 ‐‐‐15.70 ‐‐‐15.70 83.02 12/30/2019 ‐‐‐27.63 ‐‐‐27.63 71.09 11/29/2018 ‐‐‐23.38 ‐‐‐23.38 75.34 4/18/2017 ‐‐‐26.90 ‐‐‐26.90 71.82 10/12/2015 ‐‐‐27.43 ‐‐‐27.43 71.29 5/7/2015 ‐‐‐23.47 ‐‐‐23.47 75.25 12/1/2021 ‐‐‐27.60 ‐‐‐27.60 70.80 5/3/2021 ‐‐‐14.66 ‐‐‐14.66 83.74 12/30/2019 ‐‐‐27.00 ‐‐‐27.00 71.40 11/29/2018 ‐‐‐22.10 ‐‐‐22.10 76.30 4/18/2017 ‐‐‐26.36 ‐‐‐26.36 72.04 10/12/2015 ‐‐‐26.78 ‐‐‐26.78 71.62 5/7/2015 ‐‐‐23.90 ‐‐‐23.90 74.50 MW‐18 25 ‐ 40 98.24 11/30/2021 ‐‐‐27.69 ‐‐‐27.69 70.55 MW‐19 25 ‐ 40 98.82 12/1/2021 ‐‐‐27.74 ‐‐‐27.74 71.08 TW‐125 ‐ 40 NA 11/30/2021 ‐‐‐28.50 ‐‐‐28.50 NA 5/3/2021 ‐‐‐16.10 ‐‐‐16.10 83.08 12/30/2019 ‐‐‐54.50 ‐‐‐54.50 44.68 11/29/2018 ‐‐‐23.93 ‐‐‐23.93 75.25 4/18/2017 ‐‐‐27.36 ‐‐‐27.36 71.82 10/12/2015 ‐‐‐27.18 ‐‐‐27.18 72.00 5/5/2015 ‐‐‐24.10 ‐‐‐24.10 75.08 11/4/2014 ‐‐‐28.24 ‐‐‐28.24 70.94 11/29/2012 ‐‐‐35.20 ‐‐‐35.20 63.98 11/8/2011 ‐‐‐34.45 ‐‐‐34.45 64.73 3/25/2010 ‐‐‐26.26 ‐‐‐26.26 72.92 8/14/2009 ‐‐‐33.51 ‐‐‐33.51 65.67 11/4/2008 ‐‐‐33.11 ‐‐‐33.11 66.07 5/3/2021 ‐‐‐28.40 ‐‐‐28.40 70.89 12/30/2019 ‐‐‐20.20 ‐‐‐20.20 79.09 11/29/2018 ‐‐‐30.40 ‐‐‐30.40 68.89 4/18/2017 ‐‐‐33.29 ‐‐‐33.29 66.00 10/12/2015 ‐‐‐49.88 ‐‐‐49.88 49.41 5/5/2015 ‐‐‐45.31 ‐‐‐45.31 53.98 11/4/2014 ‐‐‐31.94 ‐‐‐31.94 67.35 11/29/2012 ‐‐‐41.89 ‐‐‐41.89 57.40 11/8/2011 ‐‐‐35.95 ‐‐‐35.95 63.34 3/25/2010 ‐‐‐40.81 ‐‐‐40.81 58.48 5/3/2021 ‐‐‐‐‐‐‐‐‐‐‐‐NM 12/30/2019 ‐‐‐28.50 ‐‐‐28.50 ‐‐‐ 11/29/2018 ‐‐‐26.22 ‐‐‐26.22 ‐‐‐ 4/18/2017 ‐‐‐DRY ‐‐‐‐‐‐‐‐‐ 10/12/2015 ‐‐‐‐‐‐‐‐‐‐‐‐NM 5/5/2015 ‐‐‐24.00 ‐‐‐24.00 NM 11/4/2014 ‐‐‐28.81 ‐‐‐28.81 NM 11/29/2012 ‐‐‐Dry ‐‐‐Dry NM 11/8/2011 ‐‐‐35.95 ‐‐‐35.95 NM 3/25/2010 ‐‐‐40.81 ‐‐‐40.81 NM 8/14/2009 ‐‐‐43.58 ‐‐‐43.58 NM 11/4/2008 ‐‐‐36.45 ‐‐‐36.45 NM 98.4024 ‐ 39MW‐17 24 ‐ 39MW‐16 DW‐1 DW‐2 RW‐3 ‐‐‐‐ 75 ‐ 80 99.29 99.1854 ‐ 59 98.72 Page 4 of 5 Well ID Screened Interval (feet) Top‐of‐Casing Elevation (feet) Date Water Level Measured Depth‐to‐ LNAPL (feet) Depth‐to‐Water Uncorrected (feet) LNAPL Thickness (feet) Depth‐to‐Water Corrected (feet) Groundwater Surface Elevation (feet) Incident Number: 3327 TABLE B‐9 CURRENT & HISTORICAL GROUNDWATER ELEVATIONS & LNAPL THICKNESS Billy's Mini Mart 3121 NC Highway 86 Hillsborough, Orange County, NC 5/3/2021 ‐‐‐16.60 ‐‐‐16.60 83.00 12/30/2019 ‐‐‐28.60 ‐‐‐28.60 71.00 11/29/2018 ‐‐‐24.50 ‐‐‐24.50 75.10 4/18/2017 ‐‐‐27.81 ‐‐‐27.81 71.79 10/12/2015 ‐‐‐28.60 ‐‐‐28.60 71.00 5/5/2015 ‐‐‐24.52 ‐‐‐24.52 75.08 11/4/2014 ‐‐‐29.57 ‐‐‐29.57 70.03 11/29/2012 ‐‐‐35.96 ‐‐‐36.65 62.95 11/8/2011 ‐‐‐35.72 ‐‐‐37.00 62.60 3/25/2010 ‐‐‐25.65 ‐‐‐29.09 70.51 5/3/2021 ‐‐‐NM ‐‐‐ ‐‐‐ ‐‐‐ 12/30/2019 ‐‐‐NM ‐‐‐ ‐‐‐ ‐‐‐ 11/29/2018 ‐‐‐NM ‐‐‐ ‐‐‐ ‐‐‐ 4/18/2017 ‐‐‐NM ‐‐‐ ‐‐‐ ‐‐‐ 10/12/2015 ‐‐‐NM ‐‐‐NM NM 5/5/2015 ‐‐‐NM ‐‐‐NM NM 11/4/2014 ‐‐‐NM ‐‐‐NM NM 11/29/2012 ‐‐‐37.14 ‐‐‐36.65 63.76 11/8/2011 ‐‐‐36.88 ‐‐‐37.00 64.02 3/25/2010 ‐‐‐26.78 ‐‐‐29.09 74.12 1) 2) 3)4) 5) 6)LNAPL = Light Non‐Aqueous Phase Liquid SRW‐2 ‐‐100.90 Groundwater elevation calculated by: (Top‐of‐Casing ‐ Depth‐to‐Water) + (LNAPL Thickness x 0.8581) ‐‐‐ = Not Applicable SRW‐1 NM = Not Measured Notes: Well construction information was obtained from previous consultants reports, excepting construction data for MW‐12, MW‐13, MW‐ 14, MW‐15, MW‐16 and MW‐17. Top‐of‐Casing elevations for all wells excepting MW‐12, MW‐13, MW‐14, MW‐15, MW‐16 and MW‐17 were determined by previous consultants and are relative to an elevation of 100.00 feet established at the TOC for MW‐11. 10 ‐ 50 99.60 Page 5 of 5 WithersRavenel Our People. Your Success. APPENDIX A FIELD NOTES & PHOTOGRAPHIC RECORD WithersRavenel Our People. Your Success. PHOTO 1 Proposed TW‐1 location (moved due to extensive utilities PHOTO 2 TW‐1 location WithersRavenel Our People. Your Success. PHOTO 3 Location of monitoring well MW‐18 PHOTO 4 Location of monitoring well MW‐19 WithersRavenel Our People. Your Success. APPENDIX B BORING LOGS & WELL CONSTRUCTION RECORDS Job Name: Site Loc.: Driller: Notes: ~ 28.5 feet = Groundwater Level (Measured Beneath TOC) WELL CONSTRUCTION LOG Well ID:TW-1 Former Billy's Mini Mart Job #:02170214.74 Date:November 30, 2021 Hillsborough, Orange County, NC TOC EL:NM WR Rep:M. Maltba Quantex GW EL:NM NC NAD83 Easting:NC NAD83 Northing: Depth in Feet Soil Description (Field USCS Classification) Well Construction 0 Ground Surface TW-10-25 ft 1" Dia. PVC Casing 2 3 4 5 1 Red 0-10 ft 6 7 8 9 10 Tan clay and silt 16 17 10-40 ft 11 12 13 14 15 36 37 38 18 19 20 21 39 40 Page 1 of 1 115 MacKenan Drive Cary, North Carolina 27511 tel:919.469.3340 fax:919.467.6008 www.withersravenel.com 0-40 ft Clean-Washed Torpedo Sand 1.) Boring Terminated at 40' BLS 2.) BLS - Below Land Surface 3.) TOC - Top of Casing 25-40 ft 1" Dia. 0.010-Slot PVC Well Screen 26 27 28 29 30 31 32 33 34 22 23 24 25 35 Page 1 of 1 Job Name: Site Loc.: Driller: Notes: 27.69 = Groundwater Level (Measured Beneath TOC) Page 1 of 1 115 MacKenan Drive Cary, North Carolina 27511 tel:919.469.3340 fax:919.467.6008 www.withersravenel.com Brown clay and silt 10-15 ft Tan clay and silt 15-40 ft 1.) Boring Terminated at 40' BLS 2.) BLS - Below Land Surface 3.) TOC - Top of Casing 25-40 ft 2" Dia. 0.010-Slot PVC Well Screen 26 27 28 29 30 31 32 33 34 21-23 ft Bentonite22 23 23-40 ft Clean-Washed Torpedo Sand 24 25 35 36 37 38 18 19 20 21 39 40 11 12 13 14 15 8 9 10 16 17 MW-180-25 ft 2" Dia. PVC Casing 2 3 4 5 1 Rusty red clay and silt 0-10 ft 0-21 ft Concrete Grout 6 7 NC NAD83 Easting: NC NAD83 Northing: Depth in Feet Soil Description (Field USCS Classification) Well Construction 0 Ground Surface Date:November 30, 2021 Hillsborough, Orange County, NC TOC EL:98.24 WR Rep:M. Maltba Quantex GW EL:70.55 WELL CONSTRUCTION LOG Well ID:MW-18 Former Billy's Mini Mart Job #:02170214.74 Page 1 of 1 Job Name: Site Loc.: Driller: Notes: 27.74 = Groundwater Level (Measured Beneath TOC) Page 1 of 1 115 MacKenan Drive Cary, North Carolina 27511 tel:919.469.3340 fax:919.467.6008 www.withersravenel.com Tan clay and silt 10-40 ft 23-40 ft Clean-Washed Torpedo Sand 21-23 ft Bentonite 0-21 ft Concrete Grout 25-40 ft 2" Dia. 0.010-Slot PVC Well Screen 0-25 ft 2" Dia. PVC Casing 40 1.) Boring Terminated at 40' BLS 2.) BLS - Below Land Surface 3.) TOC - Top of Casing 34 35 36 37 38 39 21 22 23 24 25 26 27 28 29 18 19 20 30 31 32 33 15 16 17 11 12 13 14 8 9 10 MW-192 3 4 5 1 Rusty red clay and silt 0-10 ft 6 7 NC NAD83 Easting:NC NAD83 Northing: Depth in Feet Soil Description (Field USCS Classification) Well Construction 0 Ground Surface Date:November 30, 2021 Hillsborough, Orange County, NC TOC EL:98.82 WR Rep:M. Maltba Quantex GW EL:71.08 WELL CONSTRUCTION LOG Well ID:MW-19 Former Billy's Mini Mart Job #:02170214.74 Page 1 of 1 :(//&216758&7,215(&25' 7KLVIRUPFDQEHXVHGIRUVLQJOHRUPXOWLSOHZHOOV )RUP*: 1RUWK&DUROLQD'HSDUWPHQWRI(QYLURQPHQWDQG1DWXUDO5HVRXUFHV±'LYLVLRQRI:DWHU4XDOLW\5HYLVHG-DQ :HOO&RQWUDFWRU,QIRUPDWLRQ :HOO&RQWUDFWRU1DPH 1&:HOO&RQWUDFWRU&HUWLILFDWLRQ1XPEHU &RPSDQ\1DPH :HOO&RQVWUXFWLRQ3HUPLW List all applicable well construction permits (i.e. County, State, Variance, etc.) :HOO8VHFKHFNZHOOXVH :DWHU6XSSO\:HOO Ƒ$JULFXOWXUDOƑ0XQLFLSDO3XEOLF Ƒ*HRWKHUPDO+HDWLQJ&RROLQJ6XSSO\Ƒ5HVLGHQWLDO:DWHU6XSSO\VLQJOH Ƒ,QGXVWULDO&RPPHUFLDOƑ5HVLGHQWLDO:DWHU6XSSO\VKDUHG Ƒ,UULJDWLRQ 1RQ:DWHU6XSSO\:HOO Ƒ0RQLWRULQJƑ5HFRYHU\ ,QMHFWLRQ:HOO Ƒ$TXLIHU5HFKDUJHƑ*URXQGZDWHU5HPHGLDWLRQ Ƒ$TXLIHU6WRUDJHDQG5HFRYHU\Ƒ6DOLQLW\%DUULHU Ƒ$TXLIHU7HVWƑ6WRUPZDWHU'UDLQDJH Ƒ([SHULPHQWDO7HFKQRORJ\Ƒ6XEVLGHQFH&RQWURO Ƒ*HRWKHUPDO&ORVHG/RRSƑ7UDFHU Ƒ*HRWKHUPDO+HDWLQJ&RROLQJ5HWXUQƑ2WKHUH[SODLQXQGHU5HPDUNV 'DWH:HOOV&RPSOHWHGBBBBBBBBBBBB:HOO,'BBBBBBBBBBBBBBBBBBBBBB D:HOO/RFDWLRQ )DFLOLW\2ZQHU1DPH)DFLOLW\,'LIDSSOLFDEOH 3K\VLFDO$GGUHVV&LW\DQG=LS &RXQW\3DUFHO,GHQWLILFDWLRQ1R3,1 E/DWLWXGHDQG/RQJLWXGHLQGHJUHHVPLQXWHVVHFRQGVRUGHFLPDOGHJUHHV LIZHOOILHOGRQHODWORQJLVVXIILFLHQW 1: ,VDUHWKHZHOOVƑ3HUPDQHQWRUƑ7HPSRUDU\ ,VWKLVDUHSDLUWRDQH[LVWLQJZHOOƑ<HVRUƑ1R 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. 1XPEHURIZHOOVFRQVWUXFWHG For multiple injection or non-water supply wells ONLY with the same construction, you can submit one form. 7RWDOZHOOGHSWKEHORZODQGVXUIDFHIW For multiple wells list all depths if different (example- 3@200’ and 2@100ƍ 6WDWLFZDWHUOHYHOEHORZWRSRIFDVLQJIWIf water level is above casing, use “+” %RUHKROHGLDPHWHULQ :HOOFRQVWUXFWLRQPHWKRG LHDXJHUURWDU\FDEOHGLUHFWSXVKHWF )25:$7(56833/<:(//621/< D<LHOGJSP0HWKRGRIWHVW E'LVLQIHFWLRQW\SH$PRXQW :$7(5=21(6 )52072'(6&5,37,21 IWIW IWIW 287(5&$6,1*IRUPXOWLFDVHGZHOOV25/,1(5LIDSSOLFDEOH )52072',$0(7(57+,&.1(660$7(5,$/ IWIWLQ ,11(5&$6,1*2578%,1*JHRWKHUPDOFORVHGORRS )52072',$0(7(57+,&.1(660$7(5,$/ IWIWLQ IWIWLQ 6&5((1 )52072',$0(7(56/276,=(7+,&.1(660$7(5,$/ IWIWLQ IWIWLQ *5287 )520720$7(5,$/(03/$&(0(170(7+2' $02817 IWIW IWIW IWIW 6$1'*5$9(/3$&.LIDSSOLFDEOH )520720$7(5,$/(03/$&(0(170(7+2' IWIW IWIW '5,//,1*/2*DWWDFKDGGLWLRQDOVKHHWVLIQHFHVVDU\ )52072'(6&5,37,21FRORUKDUGQHVVVRLOURFNW\SHJUDLQVL]HHWF IWIW IWIW IWIW IWIW IWIW IWIW IWIW 5(0$5.6 &HUWLILFDWLRQ 6LJQDWXUHRI&HUWLILHG:HOO&RQWUDFWRU'DWHBy 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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ithersRavenel Our People. Your Success. APPENDIX C LABORATORY ANALYTICAL REPORT & CHAIN OF CUSTODY Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis. 12/10/2021 Withers & Ravenel Liz Allyn 115 Mackenan Dr. BUILDING 117 Cary, NC, 27511 Ref: Analytical Testing Lab Report Number: 21-337-0011 Client Project Description: Former Billy's Mini Mart 02170214.74 Dear Liz Allyn: Waypoint Analytical, LLC (Charlotte) received sample(s) on 12/3/2021 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as- received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 65 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202237735State ProgramNorth Carolina 12/31/2021402State ProgramNorth Carolina 07/31/202299012State ProgramSouth Carolina 12/31/202199012State ProgramSouth Carolina Page 1 of 1 00016/21-337-0011 Page 2 of 65 Report Number: Sample Summary Table Client Project Description: 21-337-0011 Former Billy's Mini Mart 02170214.74 Lab No Client Sample ID Matrix Date Collected Date Received 11/30/2021 12:30Aqueous 89850 TW-1 12/03/2021 12:55 11/30/2021 14:10Aqueous 89851 MW-18 12/03/2021 12:55 12/01/2021 11:10Aqueous 89852 MW-4 12/03/2021 12:55 12/01/2021 14:00Aqueous 89853 MW-12 12/03/2021 12:55 12/01/2021 12:00Aqueous 89854 MW-13 12/03/2021 12:55 12/01/2021 14:45Aqueous 89855 MW-19 12/03/2021 12:55 12/01/2021 15:50Aqueous 89856 MW-17 12/03/2021 12:55 11/30/2021Aqueous 89857 Trip Blank 12/03/2021 12:55 12/01/2021Aqueous 89858 Trip Blank 12/03/2021 12:55 Page 3 of 65 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 21-337-0011 Report Limit Project:Former Billy's Mini Mart V 89850TW-1 13.8 12/10/2021 07:278260DBenzeneµg/L 0.500 0.500 12/10/2021 07:278260Dsec-Butyl benzene µg/L 0.500 1.35 12/10/2021 07:278260DEthylbenzeneµg/L 0.500 2.91 12/10/2021 07:278260DMethyl tert-butyl ether (MTBE)µg/L 0.500 1.31 12/10/2021 07:278260DNaphthaleneµg/L 1.00 1.82 12/10/2021 07:278260Dn-Propylbenzene µg/L 0.500 V 89851MW-18 4.56 12/10/2021 07:538260DMethyl tert-butyl ether (MTBE)µg/L 0.500 V 89852MW-4 588 12/10/2021 10:038260DBenzeneµg/L 5.00 20.5 12/10/2021 10:038260Dn-Butylbenzene µg/L 10.0 10.2 12/10/2021 10:038260Dsec-Butyl benzene µg/L 5.00 190 12/10/2021 10:038260DEthylbenzeneµg/L 5.00 149 12/10/2021 10:038260Dn-Hexane µg/L 100 7.07 12/10/2021 10:038260D4-Isopropyl toluene µg/L 5.00 767 12/10/2021 10:038260DMethyl tert-butyl ether (MTBE)µg/L 5.00 174 12/10/2021 10:038260DNaphthaleneµg/L 10.0 83.3 12/10/2021 10:038260Dn-Propylbenzene µg/L 5.00 11.8 12/10/2021 10:038260DTolueneµg/L 5.00 136 12/10/2021 10:038260D1,2,4-Trimethylbenzene µg/L 5.00 63.3 12/10/2021 10:038260D1,3,5-Trimethylbenzene µg/L 5.00 62.2 12/10/2021 10:038260Dm,p-Xylene µg/L 10.0 62.2 12/10/2021 10:038260DXylene (Total)µg/L 5.00 V 89853MW-12 131 12/10/2021 14:498260DBenzeneµg/L 5.00 5.09 12/10/2021 08:198260Dn-Butylbenzene µg/L 1.00 6.15 12/10/2021 08:198260Dsec-Butyl benzene µg/L 0.500 20.9 12/10/2021 08:198260DDi-Isopropyl Ether (DIPE)µg/L 5.00 9.55 12/10/2021 08:198260DIsopropylbenzeneµg/L 5.00 4.90 12/10/2021 08:198260D4-Isopropyl toluene µg/L 0.500 379 12/10/2021 14:498260DMethyl tert-butyl ether (MTBE)µg/L 5.00 1.07 12/10/2021 08:198260DMethylene Chloride µg/L 1.00 156 12/10/2021 14:498260DNaphthaleneµg/L 10.0 0.937 12/10/2021 08:198260Dn-Propylbenzene µg/L 0.500 0.844 12/10/2021 08:198260DTolueneµg/L 0.500 Page 4 of 65 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 21-337-0011 Report Limit Project:Former Billy's Mini Mart V 89853MW-12 25.8 12/10/2021 08:198260D1,2,4-Trimethylbenzene µg/L 0.500 9.74 12/10/2021 08:198260D1,3,5-Trimethylbenzene µg/L 0.500 67.7 12/10/2021 08:198260Do-Xylene µg/L 0.500 8.77 12/10/2021 08:198260Dm,p-Xylene µg/L 1.00 76.5 12/10/2021 08:198260DXylene (Total)µg/L 0.500 V 89854MW-13 5590 12/10/2021 12:138260DBenzeneµg/L 50.0 95.1 12/10/2021 11:478260Dn-Butylbenzene µg/L 10.0 42.1 12/10/2021 11:478260Dsec-Butyl benzene µg/L 5.00 4440 12/10/2021 12:138260DEthylbenzeneµg/L 50.0 567 12/10/2021 11:478260Dn-Hexane µg/L 100 988 12/10/2021 11:478260D2-Hexanone µg/L 50.0 193 12/10/2021 11:478260DIsopropylbenzeneµg/L 50.0 21.8 12/10/2021 11:478260D4-Isopropyl toluene µg/L 5.00 1330 12/10/2021 12:138260DMethyl tert-butyl ether (MTBE)µg/L 50.0 414 12/10/2021 11:478260D4-Methyl-2-Pentanone µg/L 50.0 1010 12/10/2021 12:138260DNaphthaleneµg/L 100 615 12/10/2021 11:478260Dn-Propylbenzene µg/L 5.00 14.8 12/10/2021 11:478260DStyreneµg/L 5.00 1880 12/10/2021 12:138260DTolueneµg/L 50.0 3700 12/10/2021 12:138260D1,2,4-Trimethylbenzene µg/L 50.0 965 12/10/2021 12:138260D1,3,5-Trimethylbenzene µg/L 50.0 6550 12/10/2021 12:138260Do-Xylene µg/L 50.0 15300 12/10/2021 12:138260Dm,p-Xylene µg/L 100 21900 12/10/2021 12:138260DXylene (Total)µg/L 50.0 V 89856MW-17 293 12/10/2021 15:128260DBenzeneµg/L 5.00 18.3 12/10/2021 09:118260Dn-Butylbenzene µg/L 1.00 8.83 12/10/2021 09:118260Dsec-Butyl benzene µg/L 0.500 22.6 12/10/2021 09:118260DDi-Isopropyl Ether (DIPE)µg/L 5.00 83.7 12/10/2021 09:118260DEthylbenzeneµg/L 0.500 212 12/10/2021 15:128260Dn-Hexane µg/L 100 5.32 12/10/2021 09:118260D2-Hexanone µg/L 5.00 49.6 12/10/2021 09:118260DIsopropylbenzeneµg/L 5.00 4.92 12/10/2021 09:118260D4-Isopropyl toluene µg/L 0.500 6.79 12/10/2021 09:118260D4-Methyl-2-Pentanone µg/L 5.00 Page 5 of 65 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 21-337-0011 Report Limit Project:Former Billy's Mini Mart V 89856MW-17 124 12/10/2021 15:128260DNaphthaleneµg/L 10.0 130 12/10/2021 15:128260Dn-Propylbenzene µg/L 5.00 11.9 12/10/2021 09:118260DTolueneµg/L 0.500 832 12/10/2021 15:128260D1,2,4-Trimethylbenzene µg/L 5.00 234 12/10/2021 15:128260D1,3,5-Trimethylbenzene µg/L 5.00 306 12/10/2021 15:128260Do-Xylene µg/L 5.00 968 12/10/2021 15:128260Dm,p-Xylene µg/L 10.0 1270 12/10/2021 15:128260DXylene (Total)µg/L 5.00 Page 6 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:TW-1 89850 Matrix: 11/30/2021 12:30 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.00Acetone 1 12/10/21 07:27 8260DJLB 13.8 µg/L 0.500Benzene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Bromobenzene 1 12/10/21 07:27 8260DJLB <1.00 µg/L 1.00Bromochloromethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Bromodichloromethane 1 12/10/21 07:27 8260DJLB <5.00 µg/L 5.00Bromoform 1 12/10/21 07:27 8260DJLB <1.00 µg/L 1.00Bromomethane 1 12/10/21 07:27 8260DJLB <1.00 µg/L 1.00n-Butylbenzene 1 12/10/21 07:27 8260DJLB 0.500 µg/L 0.500sec-Butyl benzene 1 12/10/21 07:27 8260DJLB <2.00 µg/L 2.00tert-Butyl benzene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Carbon Tetrachloride 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Chlorobenzene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Chlorodibromomethane 1 12/10/21 07:27 8260DJLB <1.00 µg/L 1.00Chloroethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Chloroform 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Chloromethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5002-Chlorotoluene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5004-Chlorotoluene 1 12/10/21 07:27 8260DJLB <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,2-Dibromoethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Dibromomethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,2-Dichlorobenzene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,3-Dichlorobenzene 1 12/10/21 07:27 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 7 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:TW-1 89850 Matrix: 11/30/2021 12:30 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 12/10/21 07:27 8260DJLB <5.00 µg/L 5.00Dichlorodifluoromethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,2-Dichloroethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,2-Dichloropropane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,3-Dichloropropane 1 12/10/21 07:27 8260DJLB <2.00 µg/L 2.002,2-Dichloropropane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,1-Dichloropropene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 12/10/21 07:27 8260DJLB 1.35 µg/L 0.500Ethylbenzene 1 12/10/21 07:27 8260DJLB <2.00 µg/L 2.00Hexachlorobutadiene 1 12/10/21 07:27 8260DJLB <5.00 µg/L 5.00Di-Isopropyl Ether (DIPE)1 12/10/21 07:27 8260DJLB <5.00 µg/L 5.00Isopropylbenzene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5004-Isopropyl toluene 1 12/10/21 07:27 8260DJLB <5.00 µg/L 5.002-Hexanone 1 12/10/21 07:27 8260DJLB <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 12/10/21 07:27 8260DJLB <1.00 µg/L 1.00Methylene Chloride 1 12/10/21 07:27 8260DJLB 2.91 µg/L 0.500Methyl tert-butyl ether (MTBE)1 12/10/21 07:27 8260DJLB <5.00 µg/L 5.004-Methyl-2-Pentanone 1 12/10/21 07:27 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 8 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:TW-1 89850 Matrix: 11/30/2021 12:30 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 1.31 µg/L 1.00Naphthalene 1 12/10/21 07:27 8260DJLB 1.82 µg/L 0.500n-Propylbenzene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Styrene 1 12/10/21 07:27 8260DJLB <10.0 µg/L 10.0Ethyl Tertiary Butyl Ether (ETBE)1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Tetrachloroethene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Toluene 1 12/10/21 07:27 8260DJLB <2.00 µg/L 2.001,2,3-Trichlorobenzene 1 12/10/21 07:27 8260DJLB <1.00 µg/L 1.001,2,4-Trichlorobenzene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,1,1-Trichloroethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,1,2-Trichloroethane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Trichloroethene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Trichlorofluoromethane 1 12/10/21 07:27 8260DJLB <1.00 µg/L 1.001,2,3-Trichloropropane 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 12/10/21 07:27 8260DJLB <2.00 µg/L 2.00Vinyl Acetate 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500Vinyl Chloride 1 12/10/21 07:27 8260DJLB <1.00 µg/L 1.00m,p-Xylene 1 12/10/21 07:27 8260DJLB <0.500 µg/L 0.500o-Xylene 1 12/10/21 07:27 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 9 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:TW-1 89850 Matrix: 11/30/2021 12:30 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 12/10/21 07:27 8260D Surrogate: 4-Bromofluorobenzene 96.4 Limits: 80-124%12/10/21 07:271 JLB V12707 Surrogate: Dibromofluoromethane 94.6 Limits: 75-129%12/10/21 07:271 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 92.8 Limits: 63-136%12/10/21 07:271 JLB V12707 Surrogate: Toluene-d8 98.6 Limits: 77-123%12/10/21 07:271 JLB V12707 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 10 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:TW-1 89850 Matrix: 11/30/2021 12:30 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12706 12/09/21 09:00 <5.00 µg/L 5.00Acrolein 1 12/10/21 07:27 V12707JLB <5.00 µg/L 5.00Acrylonitrile 1 12/10/21 07:27 V12707JLB <5.00 µg/L 5.00Carbon Disulfide 1 12/10/21 07:27 V12707JLB <10.0 µg/L 10.0n-Hexane 1 12/10/21 07:27 V12707JLB Surrogate: 4-Bromofluorobenzene 96.4 Limits: 80-124%12/10/21 07:271 JLB V12707 Surrogate: Dibromofluoromethane 94.6 Limits: 75-129%12/10/21 07:271 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 92.8 Limits: 63-136%12/10/21 07:271 JLB V12707 Surrogate: Toluene-d8 98.6 Limits: 77-123%12/10/21 07:271 JLB V12707 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 11 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-18 89851 Matrix: 11/30/2021 14:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.00Acetone 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Benzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Bromobenzene 1 12/10/21 07:53 8260DJLB <1.00 µg/L 1.00Bromochloromethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Bromodichloromethane 1 12/10/21 07:53 8260DJLB <5.00 µg/L 5.00Bromoform 1 12/10/21 07:53 8260DJLB <1.00 µg/L 1.00Bromomethane 1 12/10/21 07:53 8260DJLB <1.00 µg/L 1.00n-Butylbenzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500sec-Butyl benzene 1 12/10/21 07:53 8260DJLB <2.00 µg/L 2.00tert-Butyl benzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Carbon Tetrachloride 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Chlorobenzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Chlorodibromomethane 1 12/10/21 07:53 8260DJLB <1.00 µg/L 1.00Chloroethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Chloroform 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Chloromethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5002-Chlorotoluene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5004-Chlorotoluene 1 12/10/21 07:53 8260DJLB <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,2-Dibromoethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Dibromomethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,2-Dichlorobenzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,3-Dichlorobenzene 1 12/10/21 07:53 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 12 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-18 89851 Matrix: 11/30/2021 14:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 12/10/21 07:53 8260DJLB <5.00 µg/L 5.00Dichlorodifluoromethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,2-Dichloroethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,2-Dichloropropane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,3-Dichloropropane 1 12/10/21 07:53 8260DJLB <2.00 µg/L 2.002,2-Dichloropropane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,1-Dichloropropene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Ethylbenzene 1 12/10/21 07:53 8260DJLB <2.00 µg/L 2.00Hexachlorobutadiene 1 12/10/21 07:53 8260DJLB <5.00 µg/L 5.00Di-Isopropyl Ether (DIPE)1 12/10/21 07:53 8260DJLB <5.00 µg/L 5.00Isopropylbenzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5004-Isopropyl toluene 1 12/10/21 07:53 8260DJLB <5.00 µg/L 5.002-Hexanone 1 12/10/21 07:53 8260DJLB <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 12/10/21 07:53 8260DJLB <1.00 µg/L 1.00Methylene Chloride 1 12/10/21 07:53 8260DJLB 4.56 µg/L 0.500Methyl tert-butyl ether (MTBE)1 12/10/21 07:53 8260DJLB <5.00 µg/L 5.004-Methyl-2-Pentanone 1 12/10/21 07:53 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 13 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-18 89851 Matrix: 11/30/2021 14:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1.00 µg/L 1.00Naphthalene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500n-Propylbenzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Styrene 1 12/10/21 07:53 8260DJLB <10.0 µg/L 10.0Ethyl Tertiary Butyl Ether (ETBE)1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Tetrachloroethene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Toluene 1 12/10/21 07:53 8260DJLB <2.00 µg/L 2.001,2,3-Trichlorobenzene 1 12/10/21 07:53 8260DJLB <1.00 µg/L 1.001,2,4-Trichlorobenzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,1,1-Trichloroethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,1,2-Trichloroethane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Trichloroethene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Trichlorofluoromethane 1 12/10/21 07:53 8260DJLB <1.00 µg/L 1.001,2,3-Trichloropropane 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 12/10/21 07:53 8260DJLB <2.00 µg/L 2.00Vinyl Acetate 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500Vinyl Chloride 1 12/10/21 07:53 8260DJLB <1.00 µg/L 1.00m,p-Xylene 1 12/10/21 07:53 8260DJLB <0.500 µg/L 0.500o-Xylene 1 12/10/21 07:53 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 14 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-18 89851 Matrix: 11/30/2021 14:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 12/10/21 07:53 8260D Surrogate: 4-Bromofluorobenzene 95.0 Limits: 80-124%12/10/21 07:531 JLB V12707 Surrogate: Dibromofluoromethane 94.0 Limits: 75-129%12/10/21 07:531 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 93.8 Limits: 63-136%12/10/21 07:531 JLB V12707 Surrogate: Toluene-d8 99.0 Limits: 77-123%12/10/21 07:531 JLB V12707 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 15 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-18 89851 Matrix: 11/30/2021 14:10 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12706 12/09/21 09:00 <5.00 µg/L 5.00Acrolein 1 12/10/21 07:53 V12707JLB <5.00 µg/L 5.00Acrylonitrile 1 12/10/21 07:53 V12707JLB <5.00 µg/L 5.00Carbon Disulfide 1 12/10/21 07:53 V12707JLB <10.0 µg/L 10.0n-Hexane 1 12/10/21 07:53 V12707JLB Surrogate: 4-Bromofluorobenzene 95.0 Limits: 80-124%12/10/21 07:531 JLB V12707 Surrogate: Dibromofluoromethane 94.0 Limits: 75-129%12/10/21 07:531 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 93.8 Limits: 63-136%12/10/21 07:531 JLB V12707 Surrogate: Toluene-d8 99.0 Limits: 77-123%12/10/21 07:531 JLB V12707 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 16 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-4 89852 Matrix: 12/1/2021 11:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <50.0 µg/L 50.0Acetone 10 12/10/21 10:03 8260DJLB 588 µg/L 5.00Benzene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Bromobenzene 10 12/10/21 10:03 8260DJLB <10.0 µg/L 10.0Bromochloromethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Bromodichloromethane 10 12/10/21 10:03 8260DJLB <50.0 µg/L 50.0Bromoform 10 12/10/21 10:03 8260DJLB <10.0 µg/L 10.0Bromomethane 10 12/10/21 10:03 8260DJLB 20.5 µg/L 10.0n-Butylbenzene 10 12/10/21 10:03 8260DJLB 10.2 µg/L 5.00sec-Butyl benzene 10 12/10/21 10:03 8260DJLB <20.0 µg/L 20.0tert-Butyl benzene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Carbon Tetrachloride 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Chlorobenzene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Chlorodibromomethane 10 12/10/21 10:03 8260DJLB <10.0 µg/L 10.0Chloroethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Chloroform 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Chloromethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.002-Chlorotoluene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.004-Chlorotoluene 10 12/10/21 10:03 8260DJLB <20.0 µg/L 20.01,2-Dibromo-3-Chloropropane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,2-Dibromoethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Dibromomethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,2-Dichlorobenzene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,3-Dichlorobenzene 10 12/10/21 10:03 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 17 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-4 89852 Matrix: 12/1/2021 11:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.001,4-Dichlorobenzene 10 12/10/21 10:03 8260DJLB <50.0 µg/L 50.0Dichlorodifluoromethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,1-Dichloroethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,2-Dichloroethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,1-Dichloroethene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00cis-1,2-Dichloroethene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00trans-1,2-Dichloroethene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,2-Dichloropropane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,3-Dichloropropane 10 12/10/21 10:03 8260DJLB <20.0 µg/L 20.02,2-Dichloropropane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,1-Dichloropropene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00cis-1,3-Dichloropropene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00trans-1,3-Dichloropropene 10 12/10/21 10:03 8260DJLB 190 µg/L 5.00Ethylbenzene 10 12/10/21 10:03 8260DJLB <20.0 µg/L 20.0Hexachlorobutadiene 10 12/10/21 10:03 8260DJLB <50.0 µg/L 50.0Di-Isopropyl Ether (DIPE)10 12/10/21 10:03 8260DJLB <50.0 µg/L 50.0Isopropylbenzene 10 12/10/21 10:03 8260DJLB 7.07 µg/L 5.004-Isopropyl toluene 10 12/10/21 10:03 8260DJLB <50.0 µg/L 50.02-Hexanone 10 12/10/21 10:03 8260DJLB <50.0 µg/L 50.0Methyl Ethyl Ketone (MEK)10 12/10/21 10:03 8260DJLB <10.0 µg/L 10.0Methylene Chloride 10 12/10/21 10:03 8260DJLB 767 µg/L 5.00Methyl tert-butyl ether (MTBE)10 12/10/21 10:03 8260DJLB <50.0 µg/L 50.04-Methyl-2-Pentanone 10 12/10/21 10:03 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 18 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-4 89852 Matrix: 12/1/2021 11:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 174 µg/L 10.0Naphthalene 10 12/10/21 10:03 8260DJLB 83.3 µg/L 5.00n-Propylbenzene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Styrene 10 12/10/21 10:03 8260DJLB <100 µg/L 100Ethyl Tertiary Butyl Ether (ETBE)10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,1,1,2-Tetrachloroethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,1,2,2-Tetrachloroethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Tetrachloroethene 10 12/10/21 10:03 8260DJLB 11.8 µg/L 5.00Toluene 10 12/10/21 10:03 8260DJLB <20.0 µg/L 20.01,2,3-Trichlorobenzene 10 12/10/21 10:03 8260DJLB <10.0 µg/L 10.01,2,4-Trichlorobenzene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,1,1-Trichloroethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.001,1,2-Trichloroethane 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Trichloroethene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Trichlorofluoromethane 10 12/10/21 10:03 8260DJLB <10.0 µg/L 10.01,2,3-Trichloropropane 10 12/10/21 10:03 8260DJLB 136 µg/L 5.001,2,4-Trimethylbenzene 10 12/10/21 10:03 8260DJLB 63.3 µg/L 5.001,3,5-Trimethylbenzene 10 12/10/21 10:03 8260DJLB <20.0 µg/L 20.0Vinyl Acetate 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00Vinyl Chloride 10 12/10/21 10:03 8260DJLB 62.2 µg/L 10.0m,p-Xylene 10 12/10/21 10:03 8260DJLB <5.00 µg/L 5.00o-Xylene 10 12/10/21 10:03 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 19 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-4 89852 Matrix: 12/1/2021 11:10 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 62.2 µg/L 5.00Xylene (Total)10 12/10/21 10:03 8260D Surrogate: 4-Bromofluorobenzene 97.0 Limits: 80-124%12/10/21 10:0310 JLB V12707 Surrogate: Dibromofluoromethane 93.4 Limits: 75-129%12/10/21 10:0310 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 90.6 Limits: 63-136%12/10/21 10:0310 JLB V12707 Surrogate: Toluene-d8 98.8 Limits: 77-123%12/10/21 10:0310 JLB V12707 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 20 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-4 89852 Matrix: 12/1/2021 11:10 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12706 12/09/21 09:00 <50.0 µg/L 50.0Acrolein 10 12/10/21 10:03 V12707JLB <50.0 µg/L 50.0Acrylonitrile 10 12/10/21 10:03 V12707JLB <50.0 µg/L 50.0Carbon Disulfide 10 12/10/21 10:03 V12707JLB 149 µg/L 100n-Hexane 10 12/10/21 10:03 V12707JLB Surrogate: 4-Bromofluorobenzene 97.0 Limits: 80-124%12/10/21 10:0310 JLB V12707 Surrogate: Dibromofluoromethane 93.4 Limits: 75-129%12/10/21 10:0310 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 90.6 Limits: 63-136%12/10/21 10:0310 JLB V12707 Surrogate: Toluene-d8 98.8 Limits: 77-123%12/10/21 10:0310 JLB V12707 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 21 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-12 89853 Matrix: 12/1/2021 14:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.00Acetone 1 12/10/21 08:19 8260DJLB 131 µg/L 5.00Benzene 10 12/10/21 14:49 8260DJLB <0.500 µg/L 0.500Bromobenzene 1 12/10/21 08:19 8260DJLB <1.00 µg/L 1.00Bromochloromethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Bromodichloromethane 1 12/10/21 08:19 8260DJLB <5.00 µg/L 5.00Bromoform 1 12/10/21 08:19 8260DJLB <1.00 µg/L 1.00Bromomethane 1 12/10/21 08:19 8260DJLB 5.09 µg/L 1.00n-Butylbenzene 1 12/10/21 08:19 8260DJLB 6.15 µg/L 0.500sec-Butyl benzene 1 12/10/21 08:19 8260DJLB <2.00 µg/L 2.00tert-Butyl benzene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Carbon Tetrachloride 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Chlorobenzene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Chlorodibromomethane 1 12/10/21 08:19 8260DJLB <1.00 µg/L 1.00Chloroethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Chloroform 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Chloromethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5002-Chlorotoluene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5004-Chlorotoluene 1 12/10/21 08:19 8260DJLB <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,2-Dibromoethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Dibromomethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,2-Dichlorobenzene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,3-Dichlorobenzene 1 12/10/21 08:19 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 22 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-12 89853 Matrix: 12/1/2021 14:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 12/10/21 08:19 8260DJLB <5.00 µg/L 5.00Dichlorodifluoromethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,2-Dichloroethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,2-Dichloropropane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,3-Dichloropropane 1 12/10/21 08:19 8260DJLB <2.00 µg/L 2.002,2-Dichloropropane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,1-Dichloropropene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Ethylbenzene 1 12/10/21 08:19 8260DJLB <2.00 µg/L 2.00Hexachlorobutadiene 1 12/10/21 08:19 8260DJLB 20.9 µg/L 5.00Di-Isopropyl Ether (DIPE)1 12/10/21 08:19 8260DJLB 9.55 µg/L 5.00Isopropylbenzene 1 12/10/21 08:19 8260DJLB 4.90 µg/L 0.5004-Isopropyl toluene 1 12/10/21 08:19 8260DJLB <5.00 µg/L 5.002-Hexanone 1 12/10/21 08:19 8260DJLB <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 12/10/21 08:19 8260DJLB 1.07 µg/L 1.00Methylene Chloride 1 12/10/21 08:19 8260DJLB 379 µg/L 5.00Methyl tert-butyl ether (MTBE)10 12/10/21 14:49 8260DJLB <5.00 µg/L 5.004-Methyl-2-Pentanone 1 12/10/21 08:19 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 23 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-12 89853 Matrix: 12/1/2021 14:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 156 µg/L 10.0Naphthalene 10 12/10/21 14:49 8260DJLB 0.937 µg/L 0.500n-Propylbenzene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Styrene 1 12/10/21 08:19 8260DJLB <10.0 µg/L 10.0Ethyl Tertiary Butyl Ether (ETBE)1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Tetrachloroethene 1 12/10/21 08:19 8260DJLB 0.844 µg/L 0.500Toluene 1 12/10/21 08:19 8260DJLB <2.00 µg/L 2.001,2,3-Trichlorobenzene 1 12/10/21 08:19 8260DJLB <1.00 µg/L 1.001,2,4-Trichlorobenzene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,1,1-Trichloroethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.5001,1,2-Trichloroethane 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Trichloroethene 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Trichlorofluoromethane 1 12/10/21 08:19 8260DJLB <1.00 µg/L 1.001,2,3-Trichloropropane 1 12/10/21 08:19 8260DJLB 25.8 µg/L 0.5001,2,4-Trimethylbenzene 1 12/10/21 08:19 8260DJLB 9.74 µg/L 0.5001,3,5-Trimethylbenzene 1 12/10/21 08:19 8260DJLB <2.00 µg/L 2.00Vinyl Acetate 1 12/10/21 08:19 8260DJLB <0.500 µg/L 0.500Vinyl Chloride 1 12/10/21 08:19 8260DJLB 8.77 µg/L 1.00m,p-Xylene 1 12/10/21 08:19 8260DJLB 67.7 µg/L 0.500o-Xylene 1 12/10/21 08:19 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 24 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-12 89853 Matrix: 12/1/2021 14:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 76.5 µg/L 0.500Xylene (Total)1 12/10/21 08:19 8260D Surrogate: 4-Bromofluorobenzene 97.0 Limits: 80-124%12/10/21 08:191 JLB V12707 Surrogate: Dibromofluoromethane 95.0 Limits: 75-129%12/10/21 08:191 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 93.8 Limits: 63-136%12/10/21 08:191 JLB V12707 Surrogate: Toluene-d8 97.8 Limits: 77-123%12/10/21 08:191 JLB V12707 Surrogate: 4-Bromofluorobenzene 101 Limits: 80-124%12/10/21 14:4910 JLB V12715 Surrogate: Dibromofluoromethane 103 Limits: 75-129%12/10/21 14:4910 JLB V12715 Surrogate: 1,2-Dichloroethane - d4 97.2 Limits: 63-136%12/10/21 14:4910 JLB V12715 Surrogate: Toluene-d8 83.8 Limits: 77-123%12/10/21 14:4910 JLB V12715 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 25 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-12 89853 Matrix: 12/1/2021 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12706 12/09/21 09:00 V12714 12/10/21 09:00 <5.00 µg/L 5.00Acrolein 1 12/10/21 08:19 V12707JLB <5.00 µg/L 5.00Acrylonitrile 1 12/10/21 08:19 V12707JLB <5.00 µg/L 5.00Carbon Disulfide 1 12/10/21 08:19 V12707JLB <10.0 µg/L 10.0n-Hexane 1 12/10/21 08:19 V12707JLB Surrogate: 4-Bromofluorobenzene 97.0 Limits: 80-124%12/10/21 08:191 JLB V12707 Surrogate: Dibromofluoromethane 95.0 Limits: 75-129%12/10/21 08:191 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 93.8 Limits: 63-136%12/10/21 08:191 JLB V12707 Surrogate: Toluene-d8 97.8 Limits: 77-123%12/10/21 08:191 JLB V12707 Surrogate: 4-Bromofluorobenzene 101 Limits: 80-124%12/10/21 14:4910 JLB V12715 Surrogate: Dibromofluoromethane 103 Limits: 75-129%12/10/21 14:4910 JLB V12715 Surrogate: 1,2-Dichloroethane - d4 97.2 Limits: 63-136%12/10/21 14:4910 JLB V12715 Surrogate: Toluene-d8 83.8 Limits: 77-123%12/10/21 14:4910 JLB V12715 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 26 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-13 89854 Matrix: 12/1/2021 12:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <50.0 µg/L 50.0Acetone 10 12/10/21 11:47 8260DJLB 5590 µg/L 50.0Benzene 100 12/10/21 12:13 8260DJLB <5.00 µg/L 5.00Bromobenzene 10 12/10/21 11:47 8260DJLB <10.0 µg/L 10.0Bromochloromethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Bromodichloromethane 10 12/10/21 11:47 8260DJLB <50.0 µg/L 50.0Bromoform 10 12/10/21 11:47 8260DJLB <10.0 µg/L 10.0Bromomethane 10 12/10/21 11:47 8260DJLB 95.1 µg/L 10.0n-Butylbenzene 10 12/10/21 11:47 8260DJLB 42.1 µg/L 5.00sec-Butyl benzene 10 12/10/21 11:47 8260DJLB <20.0 µg/L 20.0tert-Butyl benzene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Carbon Tetrachloride 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Chlorobenzene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Chlorodibromomethane 10 12/10/21 11:47 8260DJLB <10.0 µg/L 10.0Chloroethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Chloroform 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Chloromethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.002-Chlorotoluene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.004-Chlorotoluene 10 12/10/21 11:47 8260DJLB <20.0 µg/L 20.01,2-Dibromo-3-Chloropropane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,2-Dibromoethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Dibromomethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,2-Dichlorobenzene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,3-Dichlorobenzene 10 12/10/21 11:47 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 27 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-13 89854 Matrix: 12/1/2021 12:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.001,4-Dichlorobenzene 10 12/10/21 11:47 8260DJLB <50.0 µg/L 50.0Dichlorodifluoromethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,1-Dichloroethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,2-Dichloroethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,1-Dichloroethene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00cis-1,2-Dichloroethene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00trans-1,2-Dichloroethene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,2-Dichloropropane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,3-Dichloropropane 10 12/10/21 11:47 8260DJLB <20.0 µg/L 20.02,2-Dichloropropane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,1-Dichloropropene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00cis-1,3-Dichloropropene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00trans-1,3-Dichloropropene 10 12/10/21 11:47 8260DJLB 4440 µg/L 50.0Ethylbenzene 100 12/10/21 12:13 8260DJLB <20.0 µg/L 20.0Hexachlorobutadiene 10 12/10/21 11:47 8260DJLB <50.0 µg/L 50.0Di-Isopropyl Ether (DIPE)10 12/10/21 11:47 8260DJLB 193 µg/L 50.0Isopropylbenzene 10 12/10/21 11:47 8260DJLB 21.8 µg/L 5.004-Isopropyl toluene 10 12/10/21 11:47 8260DJLB 988 µg/L 50.02-Hexanone 10 12/10/21 11:47 8260DJLB <50.0 µg/L 50.0Methyl Ethyl Ketone (MEK)10 12/10/21 11:47 8260DJLB <10.0 µg/L 10.0Methylene Chloride 10 12/10/21 11:47 8260DJLB 1330 µg/L 50.0Methyl tert-butyl ether (MTBE)100 12/10/21 12:13 8260DJLB 414 µg/L 50.04-Methyl-2-Pentanone 10 12/10/21 11:47 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 28 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-13 89854 Matrix: 12/1/2021 12:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 1010 µg/L 100Naphthalene 100 12/10/21 12:13 8260DJLB 615 µg/L 5.00n-Propylbenzene 10 12/10/21 11:47 8260DJLB 14.8 µg/L 5.00Styrene 10 12/10/21 11:47 8260DJLB <100 µg/L 100Ethyl Tertiary Butyl Ether (ETBE)10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,1,1,2-Tetrachloroethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,1,2,2-Tetrachloroethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Tetrachloroethene 10 12/10/21 11:47 8260DJLB 1880 µg/L 50.0Toluene 100 12/10/21 12:13 8260DJLB <20.0 µg/L 20.01,2,3-Trichlorobenzene 10 12/10/21 11:47 8260DJLB <10.0 µg/L 10.01,2,4-Trichlorobenzene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,1,1-Trichloroethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.001,1,2-Trichloroethane 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Trichloroethene 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Trichlorofluoromethane 10 12/10/21 11:47 8260DJLB <10.0 µg/L 10.01,2,3-Trichloropropane 10 12/10/21 11:47 8260DJLB 3700 µg/L 50.01,2,4-Trimethylbenzene 100 12/10/21 12:13 8260DJLB 965 µg/L 50.01,3,5-Trimethylbenzene 100 12/10/21 12:13 8260DJLB <20.0 µg/L 20.0Vinyl Acetate 10 12/10/21 11:47 8260DJLB <5.00 µg/L 5.00Vinyl Chloride 10 12/10/21 11:47 8260DJLB 15300 µg/L 100m,p-Xylene 100 12/10/21 12:13 8260DJLB 6550 µg/L 50.0o-Xylene 100 12/10/21 12:13 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 29 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-13 89854 Matrix: 12/1/2021 12:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 21900 µg/L 50.0Xylene (Total)100 12/10/21 12:13 8260D Surrogate: 4-Bromofluorobenzene 98.0 Limits: 80-124%12/10/21 11:4710 JLB V12707 Surrogate: Dibromofluoromethane 93.4 Limits: 75-129%12/10/21 11:4710 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 92.6 Limits: 63-136%12/10/21 11:4710 JLB V12707 Surrogate: Toluene-d8 98.8 Limits: 77-123%12/10/21 11:4710 JLB V12707 Surrogate: 4-Bromofluorobenzene 96.0 Limits: 80-124%12/10/21 12:13100 JLB V12707 Surrogate: Dibromofluoromethane 93.2 Limits: 75-129%12/10/21 12:13100 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 91.2 Limits: 63-136%12/10/21 12:13100 JLB V12707 Surrogate: Toluene-d8 98.0 Limits: 77-123%12/10/21 12:13100 JLB V12707 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 30 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-13 89854 Matrix: 12/1/2021 12:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12706 12/09/21 09:00 <50.0 µg/L 50.0Acrolein 10 12/10/21 11:47 V12707JLB <50.0 µg/L 50.0Acrylonitrile 10 12/10/21 11:47 V12707JLB <50.0 µg/L 50.0Carbon Disulfide 10 12/10/21 11:47 V12707JLB 567 µg/L 100n-Hexane 10 12/10/21 11:47 V12707JLB Surrogate: 4-Bromofluorobenzene 98.0 Limits: 80-124%12/10/21 11:4710 JLB V12707 Surrogate: Dibromofluoromethane 93.4 Limits: 75-129%12/10/21 11:4710 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 92.6 Limits: 63-136%12/10/21 11:4710 JLB V12707 Surrogate: Toluene-d8 98.8 Limits: 77-123%12/10/21 11:4710 JLB V12707 Surrogate: 4-Bromofluorobenzene 96.0 Limits: 80-124%12/10/21 12:13100 JLB V12707 Surrogate: Dibromofluoromethane 93.2 Limits: 75-129%12/10/21 12:13100 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 91.2 Limits: 63-136%12/10/21 12:13100 JLB V12707 Surrogate: Toluene-d8 98.0 Limits: 77-123%12/10/21 12:13100 JLB V12707 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 31 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-19 89855 Matrix: 12/1/2021 14:45 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.00Acetone 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Benzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Bromobenzene 1 12/10/21 12:02 8260DJLB <1.00 µg/L 1.00Bromochloromethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Bromodichloromethane 1 12/10/21 12:02 8260DJLB <5.00 µg/L 5.00Bromoform 1 12/10/21 12:02 8260DJLB <1.00 µg/L 1.00Bromomethane 1 12/10/21 12:02 8260DJLB <1.00 µg/L 1.00n-Butylbenzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500sec-Butyl benzene 1 12/10/21 12:02 8260DJLB <2.00 µg/L 2.00tert-Butyl benzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Carbon Tetrachloride 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Chlorobenzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Chlorodibromomethane 1 12/10/21 12:02 8260DJLB <1.00 µg/L 1.00Chloroethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Chloroform 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Chloromethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5002-Chlorotoluene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5004-Chlorotoluene 1 12/10/21 12:02 8260DJLB <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,2-Dibromoethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Dibromomethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,2-Dichlorobenzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,3-Dichlorobenzene 1 12/10/21 12:02 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 32 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-19 89855 Matrix: 12/1/2021 14:45 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 12/10/21 12:02 8260DJLB <5.00 µg/L 5.00Dichlorodifluoromethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,2-Dichloroethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,2-Dichloropropane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,3-Dichloropropane 1 12/10/21 12:02 8260DJLB <2.00 µg/L 2.002,2-Dichloropropane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,1-Dichloropropene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Ethylbenzene 1 12/10/21 12:02 8260DJLB <2.00 µg/L 2.00Hexachlorobutadiene 1 12/10/21 12:02 8260DJLB <5.00 µg/L 5.00Di-Isopropyl Ether (DIPE)1 12/10/21 12:02 8260DJLB <5.00 µg/L 5.00Isopropylbenzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5004-Isopropyl toluene 1 12/10/21 12:02 8260DJLB <5.00 µg/L 5.002-Hexanone 1 12/10/21 12:02 8260DJLB <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 12/10/21 12:02 8260DJLB <1.00 µg/L 1.00Methylene Chloride 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Methyl tert-butyl ether (MTBE)1 12/10/21 12:02 8260DJLB <5.00 µg/L 5.004-Methyl-2-Pentanone 1 12/10/21 12:02 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 33 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-19 89855 Matrix: 12/1/2021 14:45 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1.00 µg/L 1.00Naphthalene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500n-Propylbenzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Styrene 1 12/10/21 12:02 8260DJLB <10.0 µg/L 10.0Ethyl Tertiary Butyl Ether (ETBE)1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Tetrachloroethene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Toluene 1 12/10/21 12:02 8260DJLB <2.00 µg/L 2.001,2,3-Trichlorobenzene 1 12/10/21 12:02 8260DJLB <1.00 µg/L 1.001,2,4-Trichlorobenzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,1,1-Trichloroethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,1,2-Trichloroethane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Trichloroethene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Trichlorofluoromethane 1 12/10/21 12:02 8260DJLB <1.00 µg/L 1.001,2,3-Trichloropropane 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 12/10/21 12:02 8260DJLB <2.00 µg/L 2.00Vinyl Acetate 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500Vinyl Chloride 1 12/10/21 12:02 8260DJLB <1.00 µg/L 1.00m,p-Xylene 1 12/10/21 12:02 8260DJLB <0.500 µg/L 0.500o-Xylene 1 12/10/21 12:02 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 34 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-19 89855 Matrix: 12/1/2021 14:45 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 12/10/21 12:02 8260D Surrogate: 4-Bromofluorobenzene 106 Limits: 80-124%12/10/21 12:021 JLB V12715 Surrogate: Dibromofluoromethane 92.8 Limits: 75-129%12/10/21 12:021 JLB V12715 Surrogate: 1,2-Dichloroethane - d4 92.2 Limits: 63-136%12/10/21 12:021 JLB V12715 Surrogate: Toluene-d8 83.2 Limits: 77-123%12/10/21 12:021 JLB V12715 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 35 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-19 89855 Matrix: 12/1/2021 14:45 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12714 12/10/21 09:00 <5.00 µg/L 5.00Acrolein 1 12/10/21 12:02 V12715JLB <5.00 µg/L 5.00Acrylonitrile 1 12/10/21 12:02 V12715JLB <5.00 µg/L 5.00Carbon Disulfide 1 12/10/21 12:02 V12715JLB <10.0 µg/L 10.0n-Hexane 1 12/10/21 12:02 V12715JLB Surrogate: 4-Bromofluorobenzene 106 Limits: 80-124%12/10/21 12:021 JLB V12715 Surrogate: Dibromofluoromethane 92.8 Limits: 75-129%12/10/21 12:021 JLB V12715 Surrogate: 1,2-Dichloroethane - d4 92.2 Limits: 63-136%12/10/21 12:021 JLB V12715 Surrogate: Toluene-d8 83.2 Limits: 77-123%12/10/21 12:021 JLB V12715 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 36 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-17 89856 Matrix: 12/1/2021 15:50 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.00Acetone 1 12/10/21 09:11 8260DJLB 293 µg/L 5.00Benzene 10 12/10/21 15:12 8260DJLB <0.500 µg/L 0.500Bromobenzene 1 12/10/21 09:11 8260DJLB <1.00 µg/L 1.00Bromochloromethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Bromodichloromethane 1 12/10/21 09:11 8260DJLB <5.00 µg/L 5.00Bromoform 1 12/10/21 09:11 8260DJLB <1.00 µg/L 1.00Bromomethane 1 12/10/21 09:11 8260DJLB 18.3 µg/L 1.00n-Butylbenzene 1 12/10/21 09:11 8260DJLB 8.83 µg/L 0.500sec-Butyl benzene 1 12/10/21 09:11 8260DJLB <2.00 µg/L 2.00tert-Butyl benzene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Carbon Tetrachloride 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Chlorobenzene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Chlorodibromomethane 1 12/10/21 09:11 8260DJLB <1.00 µg/L 1.00Chloroethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Chloroform 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Chloromethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5002-Chlorotoluene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5004-Chlorotoluene 1 12/10/21 09:11 8260DJLB <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,2-Dibromoethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Dibromomethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,2-Dichlorobenzene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,3-Dichlorobenzene 1 12/10/21 09:11 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 37 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-17 89856 Matrix: 12/1/2021 15:50 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 12/10/21 09:11 8260DJLB <5.00 µg/L 5.00Dichlorodifluoromethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,2-Dichloroethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,2-Dichloropropane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,3-Dichloropropane 1 12/10/21 09:11 8260DJLB <2.00 µg/L 2.002,2-Dichloropropane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,1-Dichloropropene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 12/10/21 09:11 8260DJLB 83.7 µg/L 0.500Ethylbenzene 1 12/10/21 09:11 8260DJLB <2.00 µg/L 2.00Hexachlorobutadiene 1 12/10/21 09:11 8260DJLB 22.6 µg/L 5.00Di-Isopropyl Ether (DIPE)1 12/10/21 09:11 8260DJLB 49.6 µg/L 5.00Isopropylbenzene 1 12/10/21 09:11 8260DJLB 4.92 µg/L 0.5004-Isopropyl toluene 1 12/10/21 09:11 8260DJLB 5.32 µg/L 5.002-Hexanone 1 12/10/21 09:11 8260DJLB <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 12/10/21 09:11 8260DJLB <1.00 µg/L 1.00Methylene Chloride 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Methyl tert-butyl ether (MTBE)1 12/10/21 09:11 8260DJLB 6.79 µg/L 5.004-Methyl-2-Pentanone 1 12/10/21 09:11 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 38 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-17 89856 Matrix: 12/1/2021 15:50 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 124 µg/L 10.0Naphthalene 10 12/10/21 15:12 8260DJLB 130 µg/L 5.00n-Propylbenzene 10 12/10/21 15:12 8260DJLB <0.500 µg/L 0.500Styrene 1 12/10/21 09:11 8260DJLB <10.0 µg/L 10.0Ethyl Tertiary Butyl Ether (ETBE)1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Tetrachloroethene 1 12/10/21 09:11 8260DJLB 11.9 µg/L 0.500Toluene 1 12/10/21 09:11 8260DJLB <2.00 µg/L 2.001,2,3-Trichlorobenzene 1 12/10/21 09:11 8260DJLB <1.00 µg/L 1.001,2,4-Trichlorobenzene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,1,1-Trichloroethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.5001,1,2-Trichloroethane 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Trichloroethene 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Trichlorofluoromethane 1 12/10/21 09:11 8260DJLB <1.00 µg/L 1.001,2,3-Trichloropropane 1 12/10/21 09:11 8260DJLB 832 µg/L 5.001,2,4-Trimethylbenzene 10 12/10/21 15:12 8260DJLB 234 µg/L 5.001,3,5-Trimethylbenzene 10 12/10/21 15:12 8260DJLB <2.00 µg/L 2.00Vinyl Acetate 1 12/10/21 09:11 8260DJLB <0.500 µg/L 0.500Vinyl Chloride 1 12/10/21 09:11 8260DJLB 968 µg/L 10.0m,p-Xylene 10 12/10/21 15:12 8260DJLB 306 µg/L 5.00o-Xylene 10 12/10/21 15:12 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 39 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-17 89856 Matrix: 12/1/2021 15:50 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 1270 µg/L 5.00Xylene (Total)10 12/10/21 15:12 8260D Surrogate: 4-Bromofluorobenzene 99.0 Limits: 80-124%12/10/21 09:111 JLB V12707 Surrogate: Dibromofluoromethane 95.0 Limits: 75-129%12/10/21 09:111 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 94.6 Limits: 63-136%12/10/21 09:111 JLB V12707 Surrogate: Toluene-d8 98.0 Limits: 77-123%12/10/21 09:111 JLB V12707 Surrogate: 4-Bromofluorobenzene 109 Limits: 80-124%12/10/21 15:1210 JLB V12715 Surrogate: Dibromofluoromethane 93.4 Limits: 75-129%12/10/21 15:1210 JLB V12715 Surrogate: 1,2-Dichloroethane - d4 98.6 Limits: 63-136%12/10/21 15:1210 JLB V12715 Surrogate: Toluene-d8 92.8 Limits: 77-123%12/10/21 15:1210 JLB V12715 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 40 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:MW-17 89856 Matrix: 12/1/2021 15:50 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12706 12/09/21 09:00 V12714 12/10/21 09:00 <5.00 µg/L 5.00Acrolein 1 12/10/21 09:11 V12707JLB <5.00 µg/L 5.00Acrylonitrile 1 12/10/21 09:11 V12707JLB <5.00 µg/L 5.00Carbon Disulfide 1 12/10/21 09:11 V12707JLB 212 µg/L 100n-Hexane 10 12/10/21 15:12 V12715JLB Surrogate: 4-Bromofluorobenzene 99.0 Limits: 80-124%12/10/21 09:111 JLB V12707 Surrogate: Dibromofluoromethane 95.0 Limits: 75-129%12/10/21 09:111 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 94.6 Limits: 63-136%12/10/21 09:111 JLB V12707 Surrogate: Toluene-d8 98.0 Limits: 77-123%12/10/21 09:111 JLB V12707 Surrogate: 4-Bromofluorobenzene 109 Limits: 80-124%12/10/21 15:1210 JLB V12715 Surrogate: Dibromofluoromethane 93.4 Limits: 75-129%12/10/21 15:1210 JLB V12715 Surrogate: 1,2-Dichloroethane - d4 98.6 Limits: 63-136%12/10/21 15:1210 JLB V12715 Surrogate: Toluene-d8 92.8 Limits: 77-123%12/10/21 15:1210 JLB V12715 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 41 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89857 Matrix: 11/30/2021 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.00Acetone 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Benzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Bromobenzene 1 12/10/21 03:58 8260DJLB <1.00 µg/L 1.00Bromochloromethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Bromodichloromethane 1 12/10/21 03:58 8260DJLB <5.00 µg/L 5.00Bromoform 1 12/10/21 03:58 8260DJLB <1.00 µg/L 1.00Bromomethane 1 12/10/21 03:58 8260DJLB <1.00 µg/L 1.00n-Butylbenzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500sec-Butyl benzene 1 12/10/21 03:58 8260DJLB <2.00 µg/L 2.00tert-Butyl benzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Carbon Tetrachloride 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Chlorobenzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Chlorodibromomethane 1 12/10/21 03:58 8260DJLB <1.00 µg/L 1.00Chloroethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Chloroform 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Chloromethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5002-Chlorotoluene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5004-Chlorotoluene 1 12/10/21 03:58 8260DJLB <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,2-Dibromoethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Dibromomethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,2-Dichlorobenzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,3-Dichlorobenzene 1 12/10/21 03:58 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 42 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89857 Matrix: 11/30/2021 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 12/10/21 03:58 8260DJLB <5.00 µg/L 5.00Dichlorodifluoromethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,2-Dichloroethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,2-Dichloropropane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,3-Dichloropropane 1 12/10/21 03:58 8260DJLB <2.00 µg/L 2.002,2-Dichloropropane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,1-Dichloropropene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Ethylbenzene 1 12/10/21 03:58 8260DJLB <2.00 µg/L 2.00Hexachlorobutadiene 1 12/10/21 03:58 8260DJLB <5.00 µg/L 5.00Di-Isopropyl Ether (DIPE)1 12/10/21 03:58 8260DJLB <5.00 µg/L 5.00Isopropylbenzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5004-Isopropyl toluene 1 12/10/21 03:58 8260DJLB <5.00 µg/L 5.002-Hexanone 1 12/10/21 03:58 8260DJLB <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 12/10/21 03:58 8260DJLB <1.00 µg/L 1.00Methylene Chloride 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Methyl tert-butyl ether (MTBE)1 12/10/21 03:58 8260DJLB <5.00 µg/L 5.004-Methyl-2-Pentanone 1 12/10/21 03:58 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 43 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89857 Matrix: 11/30/2021 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1.00 µg/L 1.00Naphthalene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500n-Propylbenzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Styrene 1 12/10/21 03:58 8260DJLB <10.0 µg/L 10.0Ethyl Tertiary Butyl Ether (ETBE)1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Tetrachloroethene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Toluene 1 12/10/21 03:58 8260DJLB <2.00 µg/L 2.001,2,3-Trichlorobenzene 1 12/10/21 03:58 8260DJLB <1.00 µg/L 1.001,2,4-Trichlorobenzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,1,1-Trichloroethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,1,2-Trichloroethane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Trichloroethene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Trichlorofluoromethane 1 12/10/21 03:58 8260DJLB <1.00 µg/L 1.001,2,3-Trichloropropane 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 12/10/21 03:58 8260DJLB <2.00 µg/L 2.00Vinyl Acetate 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500Vinyl Chloride 1 12/10/21 03:58 8260DJLB <1.00 µg/L 1.00m,p-Xylene 1 12/10/21 03:58 8260DJLB <0.500 µg/L 0.500o-Xylene 1 12/10/21 03:58 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 44 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89857 Matrix: 11/30/2021 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 12/10/21 03:58 8260D Surrogate: 4-Bromofluorobenzene 97.2 Limits: 80-124%12/10/21 03:581 JLB V12707 Surrogate: Dibromofluoromethane 96.0 Limits: 75-129%12/10/21 03:581 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 94.8 Limits: 63-136%12/10/21 03:581 JLB V12707 Surrogate: Toluene-d8 99.4 Limits: 77-123%12/10/21 03:581 JLB V12707 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 45 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89857 Matrix: 11/30/2021 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12706 12/09/21 09:00 <5.00 µg/L 5.00Acrolein 1 12/10/21 03:58 V12707JLB <5.00 µg/L 5.00Acrylonitrile 1 12/10/21 03:58 V12707JLB <5.00 µg/L 5.00Carbon Disulfide 1 12/10/21 03:58 V12707JLB <10.0 µg/L 10.0n-Hexane 1 12/10/21 03:58 V12707JLB Surrogate: 4-Bromofluorobenzene 97.2 Limits: 80-124%12/10/21 03:581 JLB V12707 Surrogate: Dibromofluoromethane 96.0 Limits: 75-129%12/10/21 03:581 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 94.8 Limits: 63-136%12/10/21 03:581 JLB V12707 Surrogate: Toluene-d8 99.4 Limits: 77-123%12/10/21 03:581 JLB V12707 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 46 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89858 Matrix: 12/1/2021 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <5.00 µg/L 5.00Acetone 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Benzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Bromobenzene 1 12/10/21 04:24 8260DJLB <1.00 µg/L 1.00Bromochloromethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Bromodichloromethane 1 12/10/21 04:24 8260DJLB <5.00 µg/L 5.00Bromoform 1 12/10/21 04:24 8260DJLB <1.00 µg/L 1.00Bromomethane 1 12/10/21 04:24 8260DJLB <1.00 µg/L 1.00n-Butylbenzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500sec-Butyl benzene 1 12/10/21 04:24 8260DJLB <2.00 µg/L 2.00tert-Butyl benzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Carbon Tetrachloride 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Chlorobenzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Chlorodibromomethane 1 12/10/21 04:24 8260DJLB <1.00 µg/L 1.00Chloroethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Chloroform 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Chloromethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5002-Chlorotoluene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5004-Chlorotoluene 1 12/10/21 04:24 8260DJLB <2.00 µg/L 2.001,2-Dibromo-3-Chloropropane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,2-Dibromoethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Dibromomethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,2-Dichlorobenzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,3-Dichlorobenzene 1 12/10/21 04:24 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 47 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89858 Matrix: 12/1/2021 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.5001,4-Dichlorobenzene 1 12/10/21 04:24 8260DJLB <5.00 µg/L 5.00Dichlorodifluoromethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,2-Dichloroethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,1-Dichloroethene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500cis-1,2-Dichloroethene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500trans-1,2-Dichloroethene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,2-Dichloropropane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,3-Dichloropropane 1 12/10/21 04:24 8260DJLB <2.00 µg/L 2.002,2-Dichloropropane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,1-Dichloropropene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500cis-1,3-Dichloropropene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500trans-1,3-Dichloropropene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Ethylbenzene 1 12/10/21 04:24 8260DJLB <2.00 µg/L 2.00Hexachlorobutadiene 1 12/10/21 04:24 8260DJLB <5.00 µg/L 5.00Di-Isopropyl Ether (DIPE)1 12/10/21 04:24 8260DJLB <5.00 µg/L 5.00Isopropylbenzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5004-Isopropyl toluene 1 12/10/21 04:24 8260DJLB <5.00 µg/L 5.002-Hexanone 1 12/10/21 04:24 8260DJLB <5.00 µg/L 5.00Methyl Ethyl Ketone (MEK)1 12/10/21 04:24 8260DJLB <1.00 µg/L 1.00Methylene Chloride 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Methyl tert-butyl ether (MTBE)1 12/10/21 04:24 8260DJLB <5.00 µg/L 5.004-Methyl-2-Pentanone 1 12/10/21 04:24 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 48 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89858 Matrix: 12/1/2021 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <1.00 µg/L 1.00Naphthalene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500n-Propylbenzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Styrene 1 12/10/21 04:24 8260DJLB <10.0 µg/L 10.0Ethyl Tertiary Butyl Ether (ETBE)1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,1,1,2-Tetrachloroethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,1,2,2-Tetrachloroethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Tetrachloroethene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Toluene 1 12/10/21 04:24 8260DJLB <2.00 µg/L 2.001,2,3-Trichlorobenzene 1 12/10/21 04:24 8260DJLB <1.00 µg/L 1.001,2,4-Trichlorobenzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,1,1-Trichloroethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,1,2-Trichloroethane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Trichloroethene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Trichlorofluoromethane 1 12/10/21 04:24 8260DJLB <1.00 µg/L 1.001,2,3-Trichloropropane 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,2,4-Trimethylbenzene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.5001,3,5-Trimethylbenzene 1 12/10/21 04:24 8260DJLB <2.00 µg/L 2.00Vinyl Acetate 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500Vinyl Chloride 1 12/10/21 04:24 8260DJLB <1.00 µg/L 1.00m,p-Xylene 1 12/10/21 04:24 8260DJLB <0.500 µg/L 0.500o-Xylene 1 12/10/21 04:24 8260DJLB Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 49 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89858 Matrix: 12/1/2021 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.500 µg/L 0.500Xylene (Total)1 12/10/21 04:24 8260D Surrogate: 4-Bromofluorobenzene 97.8 Limits: 80-124%12/10/21 04:241 JLB V12707 Surrogate: Dibromofluoromethane 94.2 Limits: 75-129%12/10/21 04:241 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 93.8 Limits: 63-136%12/10/21 04:241 JLB V12707 Surrogate: Toluene-d8 98.8 Limits: 77-123%12/10/21 04:241 JLB V12707 Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 50 of 65 , REPORT OF ANALYSISReport Number : Project Information : NC 27511 21-337-0011 01221 Withers & Ravenel 115 Mackenan Dr. BUILDING 117 Liz Allyn Cary 02170214.74 Received : 12/03/2021 Former Billy's Mini Mart Report Date : 12/10/2021 Sample ID : Lab No : Sampled:Trip Blank 89858 Matrix: 12/1/2021 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 5030B 8260D Prep Batch(es):V12706 12/09/21 09:00 <5.00 µg/L 5.00Acrolein 1 12/10/21 04:24 V12707JLB <5.00 µg/L 5.00Acrylonitrile 1 12/10/21 04:24 V12707JLB <5.00 µg/L 5.00Carbon Disulfide 1 12/10/21 04:24 V12707JLB <10.0 µg/L 10.0n-Hexane 1 12/10/21 04:24 V12707JLB Surrogate: 4-Bromofluorobenzene 97.8 Limits: 80-124%12/10/21 04:241 JLB V12707 Surrogate: Dibromofluoromethane 94.2 Limits: 75-129%12/10/21 04:241 JLB V12707 Surrogate: 1,2-Dichloroethane - d4 93.8 Limits: 63-136%12/10/21 04:241 JLB V12707 Surrogate: Toluene-d8 98.8 Limits: 77-123%12/10/21 04:241 JLB V12707 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 51 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12707QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12706 Associated Lab Samples: 89850, 89851, 89852, 89853, 89854, 89856, 89857, 89858 LRB-V12706 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 12/10/21 03:325.00< 5.00µg/LAcetone 12/10/21 03:320.500< 0.500µg/LBenzene 12/10/21 03:320.500< 0.500µg/LBromobenzene 12/10/21 03:321.00< 1.00µg/LBromochloromethane 12/10/21 03:320.500< 0.500µg/LBromodichloromethane 12/10/21 03:325.00< 5.00µg/LBromoform 12/10/21 03:321.00< 1.00µg/LBromomethane 12/10/21 03:321.00< 1.00µg/Ln-Butylbenzene 12/10/21 03:320.500< 0.500µg/Lsec-Butyl benzene 12/10/21 03:322.00< 2.00µg/Ltert-Butyl benzene 12/10/21 03:320.500< 0.500µg/LCarbon Tetrachloride 12/10/21 03:320.500< 0.500µg/LChlorobenzene 12/10/21 03:320.500< 0.500µg/LChlorodibromomethane 12/10/21 03:321.00< 1.00µg/LChloroethane 12/10/21 03:320.500< 0.500µg/LChloroform 12/10/21 03:320.500< 0.500µg/LChloromethane 12/10/21 03:320.500< 0.500µg/L2-Chlorotoluene 12/10/21 03:320.500< 0.500µg/L4-Chlorotoluene 12/10/21 03:322.00< 2.00µg/L1,2-Dibromo-3-Chloropropane 12/10/21 03:320.500< 0.500µg/L1,2-Dibromoethane 12/10/21 03:320.500< 0.500µg/LDibromomethane 12/10/21 03:320.500< 0.500µg/L1,2-Dichlorobenzene 12/10/21 03:320.500< 0.500µg/L1,3-Dichlorobenzene 12/10/21 03:320.500< 0.500µg/L1,4-Dichlorobenzene 12/10/21 03:325.00< 5.00µg/LDichlorodifluoromethane 12/10/21 03:320.500< 0.500µg/L1,1-Dichloroethane 12/10/21 03:320.500< 0.500µg/L1,2-Dichloroethane Page 1 of 12Date:12/10/2021 04:42 PM Page 52 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12707QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12706 Associated Lab Samples: 89850, 89851, 89852, 89853, 89854, 89856, 89857, 89858 LRB-V12706 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 12/10/21 03:320.500< 0.500µg/L1,1-Dichloroethene 12/10/21 03:320.500< 0.500µg/Lcis-1,2-Dichloroethene 12/10/21 03:320.500< 0.500µg/Ltrans-1,2-Dichloroethene 12/10/21 03:320.500< 0.500µg/L1,2-Dichloropropane 12/10/21 03:320.500< 0.500µg/L1,3-Dichloropropane 12/10/21 03:322.00< 2.00µg/L2,2-Dichloropropane 12/10/21 03:320.500< 0.500µg/L1,1-Dichloropropene 12/10/21 03:320.500< 0.500µg/Lcis-1,3-Dichloropropene 12/10/21 03:320.500< 0.500µg/Ltrans-1,3-Dichloropropene 12/10/21 03:320.500< 0.500µg/LEthylbenzene 12/10/21 03:322.00< 2.00µg/LHexachlorobutadiene 12/10/21 03:325.00< 5.00µg/LDi-Isopropyl Ether (DIPE) 12/10/21 03:325.00< 5.00µg/LIsopropylbenzene 12/10/21 03:320.500< 0.500µg/L4-Isopropyl toluene 12/10/21 03:325.00< 5.00µg/L2-Hexanone 12/10/21 03:325.00< 5.00µg/LMethyl Ethyl Ketone (MEK) 12/10/21 03:321.00< 1.00µg/LMethylene Chloride 12/10/21 03:320.500< 0.500µg/LMethyl tert-butyl ether (MTBE) 12/10/21 03:325.00< 5.00µg/L4-Methyl-2-Pentanone 12/10/21 03:321.00< 1.00µg/LNaphthalene 12/10/21 03:320.500< 0.500µg/Ln-Propylbenzene 12/10/21 03:320.500< 0.500µg/LStyrene 12/10/21 03:3210.0< 10.0µg/LEthyl Tertiary Butyl Ether (ETBE) 12/10/21 03:320.500< 0.500µg/L1,1,1,2-Tetrachloroethane 12/10/21 03:320.500< 0.500µg/L1,1,2,2-Tetrachloroethane 12/10/21 03:320.500< 0.500µg/LTetrachloroethene 12/10/21 03:320.500< 0.500µg/LToluene Page 2 of 12Date:12/10/2021 04:42 PM Page 53 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12707QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12706 Associated Lab Samples: 89850, 89851, 89852, 89853, 89854, 89856, 89857, 89858 LRB-V12706 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 12/10/21 03:322.00< 2.00µg/L1,2,3-Trichlorobenzene 12/10/21 03:321.00< 1.00µg/L1,2,4-Trichlorobenzene 12/10/21 03:320.500< 0.500µg/L1,1,1-Trichloroethane 12/10/21 03:320.500< 0.500µg/L1,1,2-Trichloroethane 12/10/21 03:320.500< 0.500µg/LTrichloroethene 12/10/21 03:320.500< 0.500µg/LTrichlorofluoromethane 12/10/21 03:321.00< 1.00µg/L1,2,3-Trichloropropane 12/10/21 03:320.500< 0.500µg/L1,2,4-Trimethylbenzene 12/10/21 03:320.500< 0.500µg/L1,3,5-Trimethylbenzene 12/10/21 03:322.00< 2.00µg/LVinyl Acetate 12/10/21 03:320.500< 0.500µg/LVinyl Chloride 12/10/21 03:321.00< 1.00µg/Lm,p-Xylene 12/10/21 03:320.500< 0.500µg/Lo-Xylene 12/10/21 03:325.00< 5.00µg/LAcrolein 12/10/21 03:325.00< 5.00µg/LAcrylonitrile 12/10/21 03:325.00< 5.00µg/LCarbon Disulfide 12/10/21 03:3210.0< 10.0µg/Ln-Hexane 12/10/21 03:324-Bromofluorobenzene (S)98.6 80-124 12/10/21 03:32Dibromofluoromethane (S)95.4 75-129 12/10/21 03:321,2-Dichloroethane - d4 (S)93.0 63-136 12/10/21 03:32Toluene-d8 (S)98.0 77-123 LCS-V12706 LCSD-V12706Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 31.2 78.083.033.240.0µg/LAcetone 40-166 6.2 20.0 Page 3 of 12Date:12/10/2021 04:42 PM Page 54 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12707QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12706 LCS-V12706 LCSD-V12706Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.0 95.094.518.920.0µg/LBenzene 77-128 0.5 20.0 18.4 92.093.518.720.0µg/LBromobenzene 78-129 1.6 20.0 19.6 98.010521.020.0µg/LBromochloromethane 78-135 6.8 20.0 18.7 93.594.018.820.0µg/LBromodichloromethane 76-138 0.5 20.0 19.9 99.599.519.920.0µg/LBromoform 71-135 0.0 20.0 16.7 83.584.516.920.0µg/LBromomethane 41-168 1.1 20.0 19.3 96.597.019.420.0µg/Ln-Butylbenzene 68-134 0.5 20.0 19.0 95.096.019.220.0µg/Lsec-Butyl benzene 71-131 1.0 20.0 18.5 92.594.518.920.0µg/Ltert-Butyl benzene 70-132 2.1 20.0 19.2 96.092.518.520.0µg/LCarbon Tetrachloride 72-142 3.7 20.0 18.8 94.093.018.620.0µg/LChlorobenzene 78-119 1.0 20.0 18.9 94.595.519.120.0µg/LChlorodibromomethane 75-134 1.0 20.0 18.9 94.593.518.720.0µg/LChloroethane 57-142 1.0 20.0 17.8 89.088.017.620.0µg/LChloroform 77-130 1.1 20.0 17.3 86.588.017.620.0µg/LChloromethane 47-145 1.7 20.0 18.8 94.093.018.620.0µg/L2-Chlorotoluene 74-126 1.0 20.0 18.9 94.594.018.820.0µg/L4-Chlorotoluene 78-129 0.5 20.0 20.7 10410220.420.0µg/L1,2-Dibromo-3-Chloropropane 63-134 1.4 20.0 19.3 96.598.019.620.0µg/L1,2-Dibromoethane 77-135 1.5 20.0 18.6 93.094.518.920.0µg/LDibromomethane 76-138 1.6 20.0 19.4 97.094.518.920.0µg/L1,2-Dichlorobenzene 78-128 2.6 20.0 19.0 95.097.019.420.0µg/L1,3-Dichlorobenzene 77-125 2.0 20.0 19.2 96.095.519.120.0µg/L1,4-Dichlorobenzene 75-126 0.5 20.0 17.0 85.085.017.020.0µg/LDichlorodifluoromethane 28-163 0.0 20.0 18.0 90.091.518.320.0µg/L1,1-Dichloroethane 70-130 1.6 20.0 16.9 84.586.017.220.0µg/L1,2-Dichloroethane 68-131 1.7 20.0 Page 4 of 12Date:12/10/2021 04:42 PM Page 55 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12707QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12706 LCS-V12706 LCSD-V12706Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 18.3 91.590.518.120.0µg/L1,1-Dichloroethene 70-154 1.0 20.0 18.3 91.593.518.720.0µg/Lcis-1,2-Dichloroethene 76-141 2.1 20.0 18.3 91.591.018.220.0µg/Ltrans-1,2-Dichloroethene 76-135 0.5 20.0 18.9 94.593.518.720.0µg/L1,2-Dichloropropane 77-130 1.0 20.0 19.2 96.098.519.720.0µg/L1,3-Dichloropropane 76-132 2.5 20.0 16.9 84.583.016.620.0µg/L2,2-Dichloropropane 29-149 1.7 20.0 18.3 91.592.018.420.0µg/L1,1-Dichloropropene 71-136 0.5 20.0 18.5 92.589.517.920.0µg/Lcis-1,3-Dichloropropene 65-140 3.2 20.0 18.5 92.589.517.920.0µg/Ltrans-1,3-Dichloropropene 67-140 3.2 20.0 17.8 89.091.518.320.0µg/LEthylbenzene 80-127 2.7 20.0 19.3 96.598.019.620.0µg/LHexachlorobutadiene 61-134 1.5 20.0 18.6 93.094.018.820.0µg/LDi-Isopropyl Ether (DIPE)60-154 1.0 20.0 18.6 93.093.518.720.0µg/LIsopropylbenzene 70-130 0.5 20.0 19.3 96.595.019.020.0µg/L4-Isopropyl toluene 69-132 1.5 20.0 18.6 93.096.019.220.0µg/L2-Hexanone 64-137 3.1 20.0 17.7 88.590.018.020.0µg/LMethyl Ethyl Ketone (MEK)71-134 1.6 20.0 18.4 92.092.018.420.0µg/LMethylene Chloride 73-131 0.0 20.0 19.0 95.094.518.920.0µg/LMethyl tert-butyl ether (MTBE)68-135 0.5 20.0 18.7 93.596.019.220.0µg/L4-Methyl-2-Pentanone 69-134 2.6 20.0 19.7 98.510220.320.0µg/LNaphthalene 64-136 3.0 20.0 18.8 94.094.018.820.0µg/Ln-Propylbenzene 72-132 0.0 20.0 19.3 96.596.019.220.0µg/LStyrene 78-129 0.5 20.0 38.6 96.596.738.740.0µg/LEthyl Tertiary Butyl Ether (ETBE)70-130 0.2 20.0 19.4 97.095.519.120.0µg/L1,1,1,2-Tetrachloroethane 79-134 1.5 20.0 19.2 96.095.019.020.0µg/L1,1,2,2-Tetrachloroethane 62-127 1.0 20.0 18.9 94.597.019.420.0µg/LTetrachloroethene 80-129 2.6 20.0 Page 5 of 12Date:12/10/2021 04:42 PM Page 56 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12707QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12706 LCS-V12706 LCSD-V12706Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.0 95.095.019.020.0µg/LToluene 76-131 0.0 20.0 20.8 10410420.720.0µg/L1,2,3-Trichlorobenzene 58-144 0.4 20.0 20.6 10310120.220.0µg/L1,2,4-Trichlorobenzene 66-139 1.9 20.0 18.9 94.592.518.520.0µg/L1,1,1-Trichloroethane 75-135 2.1 20.0 19.3 96.597.519.520.0µg/L1,1,2-Trichloroethane 70-140 1.0 20.0 18.8 94.097.519.520.0µg/LTrichloroethene 77-133 3.6 20.0 18.9 94.594.018.820.0µg/LTrichlorofluoromethane 62-148 0.5 20.0 19.8 99.010120.120.0µg/L1,2,3-Trichloropropane 71-127 1.5 20.0 19.7 98.597.019.420.0µg/L1,2,4-Trimethylbenzene 75-133 1.5 20.0 19.2 96.095.019.020.0µg/L1,3,5-Trimethylbenzene 75-131 1.0 20.0 15.6 78.072.014.420.0µg/LVinyl Acetate 34-167 8.0 20.0 18.5 92.588.517.720.0µg/LVinyl Chloride 57-141 4.4 20.0 38.4 96.095.538.240.0µg/Lm,p-Xylene 77-133 0.5 20.0 18.8 94.095.019.020.0µg/Lo-Xylene 78-128 1.0 20.0 36.3 90.789.535.840.0µg/LAcrolein 70-130 1.3 20.0 40.4 10110441.540.0µg/LAcrylonitrile 81-127 2.6 20.0 17.5 87.585.517.120.0µg/LCarbon Disulfide 59-135 2.3 20.0 16.7 83.588.017.620.0µg/Ln-Hexane 70-130 5.2 20.0 96.898.64-Bromofluorobenzene (S)80-124 94.494.8Dibromofluoromethane (S)75-129 94.092.81,2-Dichloroethane - d4 (S)63-136 98.898.0Toluene-d8 (S)77-123 Page 6 of 12Date:12/10/2021 04:42 PM Page 57 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12715QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12714 Associated Lab Samples: 89853, 89855, 89856 LRB-V12714 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 12/10/21 11:385.00< 5.00µg/LAcetone 12/10/21 11:380.500< 0.500µg/LBenzene 12/10/21 11:380.500< 0.500µg/LBromobenzene 12/10/21 11:381.00< 1.00µg/LBromochloromethane 12/10/21 11:380.500< 0.500µg/LBromodichloromethane 12/10/21 11:385.00< 5.00µg/LBromoform 12/10/21 11:381.00< 1.00µg/LBromomethane 12/10/21 11:381.00< 1.00µg/Ln-Butylbenzene 12/10/21 11:380.500< 0.500µg/Lsec-Butyl benzene 12/10/21 11:382.00< 2.00µg/Ltert-Butyl benzene 12/10/21 11:380.500< 0.500µg/LCarbon Tetrachloride 12/10/21 11:380.500< 0.500µg/LChlorobenzene 12/10/21 11:380.500< 0.500µg/LChlorodibromomethane 12/10/21 11:381.00< 1.00µg/LChloroethane 12/10/21 11:380.500< 0.500µg/LChloroform 12/10/21 11:380.500< 0.500µg/LChloromethane 12/10/21 11:380.500< 0.500µg/L2-Chlorotoluene 12/10/21 11:380.500< 0.500µg/L4-Chlorotoluene 12/10/21 11:382.00< 2.00µg/L1,2-Dibromo-3-Chloropropane 12/10/21 11:380.500< 0.500µg/L1,2-Dibromoethane 12/10/21 11:380.500< 0.500µg/LDibromomethane 12/10/21 11:380.500< 0.500µg/L1,2-Dichlorobenzene 12/10/21 11:380.500< 0.500µg/L1,3-Dichlorobenzene 12/10/21 11:380.500< 0.500µg/L1,4-Dichlorobenzene 12/10/21 11:385.00< 5.00µg/LDichlorodifluoromethane 12/10/21 11:380.500< 0.500µg/L1,1-Dichloroethane 12/10/21 11:380.500< 0.500µg/L1,2-Dichloroethane Page 7 of 12Date:12/10/2021 04:42 PM Page 58 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12715QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12714 Associated Lab Samples: 89853, 89855, 89856 LRB-V12714 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 12/10/21 11:380.500< 0.500µg/L1,1-Dichloroethene 12/10/21 11:380.500< 0.500µg/Lcis-1,2-Dichloroethene 12/10/21 11:380.500< 0.500µg/Ltrans-1,2-Dichloroethene 12/10/21 11:380.500< 0.500µg/L1,2-Dichloropropane 12/10/21 11:380.500< 0.500µg/L1,3-Dichloropropane 12/10/21 11:382.00< 2.00µg/L2,2-Dichloropropane 12/10/21 11:380.500< 0.500µg/L1,1-Dichloropropene 12/10/21 11:380.500< 0.500µg/Lcis-1,3-Dichloropropene 12/10/21 11:380.500< 0.500µg/Ltrans-1,3-Dichloropropene 12/10/21 11:380.500< 0.500µg/LEthylbenzene 12/10/21 11:382.00< 2.00µg/LHexachlorobutadiene 12/10/21 11:385.00< 5.00µg/LDi-Isopropyl Ether (DIPE) 12/10/21 11:385.00< 5.00µg/LIsopropylbenzene 12/10/21 11:380.500< 0.500µg/L4-Isopropyl toluene 12/10/21 11:385.00< 5.00µg/L2-Hexanone 12/10/21 11:385.00< 5.00µg/LMethyl Ethyl Ketone (MEK) 12/10/21 11:381.00< 1.00µg/LMethylene Chloride 12/10/21 11:380.500< 0.500µg/LMethyl tert-butyl ether (MTBE) 12/10/21 11:385.00< 5.00µg/L4-Methyl-2-Pentanone 12/10/21 11:381.00< 1.00µg/LNaphthalene 12/10/21 11:380.500< 0.500µg/Ln-Propylbenzene 12/10/21 11:380.500< 0.500µg/LStyrene 12/10/21 11:3810.0< 10.0µg/LEthyl Tertiary Butyl Ether (ETBE) 12/10/21 11:380.500< 0.500µg/L1,1,1,2-Tetrachloroethane 12/10/21 11:380.500< 0.500µg/L1,1,2,2-Tetrachloroethane 12/10/21 11:380.500< 0.500µg/LTetrachloroethene 12/10/21 11:380.500< 0.500µg/LToluene Page 8 of 12Date:12/10/2021 04:42 PM Page 59 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12715QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12714 Associated Lab Samples: 89853, 89855, 89856 LRB-V12714 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 12/10/21 11:382.00< 2.00µg/L1,2,3-Trichlorobenzene 12/10/21 11:381.00< 1.00µg/L1,2,4-Trichlorobenzene 12/10/21 11:380.500< 0.500µg/L1,1,1-Trichloroethane 12/10/21 11:380.500< 0.500µg/L1,1,2-Trichloroethane 12/10/21 11:380.500< 0.500µg/LTrichloroethene 12/10/21 11:380.500< 0.500µg/LTrichlorofluoromethane 12/10/21 11:381.00< 1.00µg/L1,2,3-Trichloropropane 12/10/21 11:380.500< 0.500µg/L1,2,4-Trimethylbenzene 12/10/21 11:380.500< 0.500µg/L1,3,5-Trimethylbenzene 12/10/21 11:382.00< 2.00µg/LVinyl Acetate 12/10/21 11:380.500< 0.500µg/LVinyl Chloride 12/10/21 11:381.00< 1.00µg/Lm,p-Xylene 12/10/21 11:380.500< 0.500µg/Lo-Xylene 12/10/21 11:385.00< 5.00µg/LAcrolein 12/10/21 11:385.00< 5.00µg/LAcrylonitrile 12/10/21 11:385.00< 5.00µg/LCarbon Disulfide 12/10/21 11:3810.0< 10.0µg/Ln-Hexane 12/10/21 11:384-Bromofluorobenzene (S)118 80-124 12/10/21 11:38Dibromofluoromethane (S)89.8 75-129 12/10/21 11:381,2-Dichloroethane - d4 (S)92.2 63-136 12/10/21 11:38Toluene-d8 (S)91.8 77-123 LCS-V12714 LCSD-V12714Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 35.4 88.510040.140.0µg/LAcetone 40-166 12.4 20.0 Page 9 of 12Date:12/10/2021 04:42 PM Page 60 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12715QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12714 LCS-V12714 LCSD-V12714Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 21.3 10711021.920.0µg/LBenzene 77-128 2.7 20.0 19.9 99.510220.320.0µg/LBromobenzene 78-129 1.9 20.0 21.3 10711422.720.0µg/LBromochloromethane 78-135 6.3 20.0 21.2 10611222.320.0µg/LBromodichloromethane 76-138 5.0 20.0 21.0 10511122.120.0µg/LBromoform 71-135 5.1 20.0 20.5 10310220.420.0µg/LBromomethane 41-168 0.4 20.0 20.8 10410721.320.0µg/Ln-Butylbenzene 68-134 2.3 20.0 20.6 10310621.120.0µg/Lsec-Butyl benzene 71-131 2.3 20.0 20.2 10110420.720.0µg/Ltert-Butyl benzene 70-132 2.4 20.0 21.1 10611021.920.0µg/LCarbon Tetrachloride 72-142 3.7 20.0 20.3 10210320.520.0µg/LChlorobenzene 78-119 0.9 20.0 20.1 10110220.420.0µg/LChlorodibromomethane 75-134 1.4 20.0 20.7 10410921.720.0µg/LChloroethane 57-142 4.7 20.0 20.8 10410821.520.0µg/LChloroform 77-130 3.3 20.0 20.2 10110420.820.0µg/LChloromethane 47-145 2.9 20.0 20.6 10310420.820.0µg/L2-Chlorotoluene 74-126 0.9 20.0 20.1 10110420.720.0µg/L4-Chlorotoluene 78-129 2.9 20.0 20.7 10411723.420.0µg/L1,2-Dibromo-3-Chloropropane 63-134 12.2 20.0 20.0 10010621.220.0µg/L1,2-Dibromoethane 77-135 5.8 20.0 20.8 10411122.220.0µg/LDibromomethane 76-138 6.5 20.0 20.0 10010420.820.0µg/L1,2-Dichlorobenzene 78-128 3.9 20.0 20.5 10310520.920.0µg/L1,3-Dichlorobenzene 77-125 1.9 20.0 19.7 98.510120.120.0µg/L1,4-Dichlorobenzene 75-126 2.0 20.0 19.8 99.010420.820.0µg/LDichlorodifluoromethane 28-163 4.9 20.0 21.2 10610921.820.0µg/L1,1-Dichloroethane 70-130 2.7 20.0 20.3 10210621.220.0µg/L1,2-Dichloroethane 68-131 4.3 20.0 Page 10 of 12Date:12/10/2021 04:42 PM Page 61 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12715QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12714 LCS-V12714 LCSD-V12714Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.8 10411022.020.0µg/L1,1-Dichloroethene 70-154 5.6 20.0 21.3 10711022.020.0µg/Lcis-1,2-Dichloroethene 76-141 3.2 20.0 21.2 10610821.620.0µg/Ltrans-1,2-Dichloroethene 76-135 1.8 20.0 21.8 10911222.420.0µg/L1,2-Dichloropropane 77-130 2.7 20.0 20.0 10010420.820.0µg/L1,3-Dichloropropane 76-132 3.9 20.0 21.1 10610921.720.0µg/L2,2-Dichloropropane 29-149 2.8 20.0 21.4 10711021.920.0µg/L1,1-Dichloropropene 71-136 2.3 20.0 21.8 10911523.020.0µg/Lcis-1,3-Dichloropropene 65-140 5.3 20.0 21.8 10911523.020.0µg/Ltrans-1,3-Dichloropropene 67-140 5.3 20.0 20.1 10110020.020.0µg/LEthylbenzene 80-127 0.4 20.0 21.2 10610721.420.0µg/LHexachlorobutadiene 61-134 0.9 20.0 21.1 10611022.020.0µg/LDi-Isopropyl Ether (DIPE)60-154 4.1 20.0 20.5 10310420.820.0µg/LIsopropylbenzene 70-130 1.4 20.0 20.3 10210420.720.0µg/L4-Isopropyl toluene 69-132 1.9 20.0 19.8 99.010621.120.0µg/L2-Hexanone 64-137 6.3 20.0 25.0 12511022.020.0µg/LMethyl Ethyl Ketone (MEK)71-134 12.7 20.0 20.7 10410621.120.0µg/LMethylene Chloride 73-131 1.9 20.0 20.7 10411422.820.0µg/LMethyl tert-butyl ether (MTBE)68-135 9.6 20.0 21.2 10611923.720.0µg/L4-Methyl-2-Pentanone 69-134 11.1 20.0 18.5 92.510520.920.0µg/LNaphthalene 64-136 12.1 20.0 20.3 10210420.720.0µg/Ln-Propylbenzene 72-132 1.9 20.0 20.8 10410721.420.0µg/LStyrene 78-129 2.8 20.0 43.4 10911345.340.0µg/LEthyl Tertiary Butyl Ether (ETBE)70-130 4.2 20.0 20.9 10510520.920.0µg/L1,1,1,2-Tetrachloroethane 79-134 0.0 20.0 19.6 98.010420.820.0µg/L1,1,2,2-Tetrachloroethane 62-127 5.9 20.0 20.3 10210420.820.0µg/LTetrachloroethene 80-129 2.4 20.0 Page 11 of 12Date:12/10/2021 04:42 PM Page 62 of 65 Quality Control Data 21-337-0011Report No: Project Description: Client ID:Withers & Ravenel Former Billy's Mini Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12715QC Analytical Batch(es): Analysis Method: Analysis Description: 5030B QC Prep:V12714 LCS-V12714 LCSD-V12714Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 21.1 10611021.920.0µg/LToluene 76-131 3.7 20.0 20.9 10511623.120.0µg/L1,2,3-Trichlorobenzene 58-144 10.0 20.0 20.7 10411122.220.0µg/L1,2,4-Trichlorobenzene 66-139 6.9 20.0 21.3 10711222.320.0µg/L1,1,1-Trichloroethane 75-135 4.5 20.0 21.6 10811222.420.0µg/L1,1,2-Trichloroethane 70-140 3.6 20.0 21.3 10710921.820.0µg/LTrichloroethene 77-133 2.3 20.0 20.4 10211021.920.0µg/LTrichlorofluoromethane 62-148 7.0 20.0 19.4 97.010721.420.0µg/L1,2,3-Trichloropropane 71-127 9.8 20.0 20.3 10210420.720.0µg/L1,2,4-Trimethylbenzene 75-133 1.9 20.0 20.4 10210420.720.0µg/L1,3,5-Trimethylbenzene 75-131 1.4 20.0 19.8 99.011122.120.0µg/LVinyl Acetate 34-167 10.9 20.0 21.0 10510721.320.0µg/LVinyl Chloride 57-141 1.4 20.0 41.4 10410642.340.0µg/Lm,p-Xylene 77-133 2.1 20.0 20.4 10210320.620.0µg/Lo-Xylene 78-128 0.9 20.0 41.8 10511345.340.0µg/LAcrolein 70-130 8.0 20.0 42.8 10711847.040.0µg/LAcrylonitrile 81-127 9.3 20.0 20.4 10210821.520.0µg/LCarbon Disulfide 59-135 5.2 20.0 22.3 11211522.920.0µg/Ln-Hexane 70-130 2.6 20.0 98.41004-Bromofluorobenzene (S)80-124 95.2100Dibromofluoromethane (S)75-129 92.21011,2-Dichloroethane - d4 (S)63-136 95.293.8Toluene-d8 (S)77-123 Page 12 of 12Date:12/10/2021 04:42 PM Page 63 of 65 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:21-337-0011 Withers & Ravenel 01221 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT-15 0.8C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Sarah J. Locklear Date & Time:12/03/2021 13:02:28 Special precautions or instructions included? Comments: Page 64 of 65 Page 65 of 65 10515 Research Drive Knoxville, TN 37932 Phone: (865) 573-8188 Fax: (865) 573-8133 Client:Phone:919-418-0279 Withers and Ravenel Liz Allyn 111 Mackenah Drive Fax:Cary, NC 27511 Identifier: 070SL Date Rec: 12/14/2021 Report Date: 03/07/2022 Client Project #: Client Project Name: Purchase Order #: 02170214.74/20002/00010 02170214.74 Billy’s Mini Mart CSIATest results provided for: NOTICE: This report is intended only for the addressee shown above and may contain confidential or privileged information. If the recipient of this material is not the intended recipient or if you have received this in error, please notify Microbial Insights, Inc. immediately. The data and other information in this report represent only the sample(s) analyzed and are rendered upon condition that it is not to be reproduced without approval from Microbial Insights, Inc. Thank you for your cooperation. Reviewed By: Results relate only to the items tested and the sample(s) as received by the laboratory. Page 1 of 4 Client: Project:Date Received: MI Project Number: CSIA 070SL Billy’s Mini Mart Withers and Ravenel 12/14/2021 Tel. (865) 573-8188 Fax. (865) 573-8133 10515 Research Dr., Knoxville, TN 37932 MICROBIAL INSIGHTS, INC. TW-1 MW-4 MW-12Client Sample ID: Sample Information MW-13 MW-17 12/01/202112/01/202112/01/202112/01/202111/30/2021Sample Date: Analyst/Reviewer:MW/SR MW/SR MW/SR MW/SR MW/SR Carbon Units -27.6 -24.1 -27.6 -29.3δ¹³C, VPDB (‰)¹³C/¹²C Benzene (‰)-27.2 NA NA -24.1 NAδ¹³C, VPDB (‰)¹³C/¹²C Toluene (‰)ND (I) Hydrogen Units -73.1 -72.7 -74.0 -72.8δ²H, VSMOW (‰)²H/¹H Benzene (‰)-73.9 NA NA -54.2 NAδ²H, VSMOW (‰)²H/¹H Toluene (‰)-57.0 (J) Legend: NA= Not Analyzed NS=Not Sampled J= Estimated concentration below PQL but above LQL ND= Not Detected Page 2 of 4 Quality Assurance/Quality Control Data Samples Received 12/14/2021 Date Prepared Date Analyzed Arrival Temperature Positive Control (‰ Std. Dev.)*BlankComponent 12/14/2021 03/07/2022 0.12 °C Pass¹³C/¹²C Benzene (‰) 12/14/2021 03/07/2022 0.12 °C Pass¹³C/¹²C Toluene (‰) 12/14/2021 03/07/2022 0.42 °C Pass²H/¹H Benzene (‰) 12/14/2021 03/07/2022 0.32 °C Pass²H/¹H Toluene (‰) positive control values are within +- 0.5‰ of true value.δ*C13 *2 Hδ positive control values are within +- 10.0‰ of true value. Page 3 of 4 10515 Research Drive Knoxville, TN 37932 Phone: (865) 573-8188 Fax: (865) 573-8133 Identifier: 070SL Date Rec: 12/14/2021 Report Date: 03/07/2022 Client Project #: 02170214.74 Client Project Name: Billy’s Mini Mart Purchase Order #: 02170214.74/20002/00010 Comments:Compounds expected to be below the CSIA limit of detection (LOD) after required dilutions were not analyzed (NA). Please note that duplicate analysis of benzene in sample MW-17 was +/- 0.8, which is outside of the carbon CSIA acceptable range of +/- 0.5. Due to non-target compounds, baseline separation for benzene in samples TW-1 and MW-17 was not fully achieved in the hydrogen CSIA analysis. Values that were detected but not quantified resulted in an ND due to the presence of an unknown analyte causing interferant are indicated with an “I”. Page 4 of 4 WithersRavenel Our People. Your Success. APPENDIX D GENERAL STANDARD OPERATING PROCEDURES Generalized Standard Operating Procedures (Not All Inclusive) WithersRavenel Our People. Your Success. Soil Sampling, Soil Boring and Monitor Well Installation, Well Development Soil borings are installed utilizing a stainless-steel hand auger, direct-push hydraulic drill or auger rotary drill using either a macro core™ sampler, hollow stem augers, or air rotary roller cone bit. Soil borings are typically sampled at discrete intervals from the bucket of a clean stainless steel hand auger, direct push stainless steel sampler with acetate sleeve, or a split barrel sampler. When appropriate, soil samples may be collected from drill cuttings associated with the boring or well installation. Monitor wells are constructed within select soil borings of one, two, or four-inch inside diameter PVC casing and machine slotted screen in accordance with NCAC Title 15A, Subchapter 02C (Well Construction Standards, Criteria and Standards Applicable to Water Supply and Certain Other Wells). Clean-washed “#2 Torpedo Sand” is typically utilized to fill the boring annulus surrounding the well screen, extending to a minimum of 1-foot above the well screen. A minimum 1-foot thick bentonite clay seal is emplaced above the sand pack and hydrated. Neat cement grout is placed in the remaining annulus space from the upper portion of the bentonite seal to within 1-foot of surface grade. In coastal plain areas where shallow groundwater is encountered, a variance to construction standards may be employed to ensure the upper portion of the well screen intersects the upper aquifer surface. Wellheads may be completed with either concrete-set flush mounted traffic-bearing steel skirted manholes with bolt down covers or steel above-ground “stick-up” well protectors set in a concrete pad. The monitoring wells are secured with locking caps. Temporary wells or piezometers may be completed with the PVC riser cut at or above grade, and are abandoned within 24-hours of their installation. Wells may be developed using a bailer, electric submersible pump, pneumatic pump, or peristaltic pump, dependent upon site conditions. When wells are developed by the driller, they may be developed with any of the methods outlined above, in addition to air or water injection. Soil boring logs and well construction details are typically prepared for presentation in a report appendix. Borings completed in bedrock may be drilled using air rotary, coring, or sonic drilling methods. Groundwater Depth to Water Measurements Groundwater level measurements are typically obtained using an electronic water level indicator which registers a tone and/or illuminated light when the probe contacts groundwater. Depth to groundwater measurements are obtained by lowering the probe attached to a cable usually marked in 0.01 foot intervals into the well until the probe of the meter intersects the water surface. The measurement from the top of the riser pipe or top of casing (TOC) to the water level is recorded to the nearest 0.01 foot. The electronic water level indicator probe and exposed probe cable is decontaminated between measurement locations. Generalized Standard Operating Procedures (Not All Inclusive) WithersRavenel Our People. Your Success. Free Product Level Measurements Light Non-Aqueous Phase Liquid (LNAPL) or “free product” present on the water table is measured using an electronic oil/water interface probe. The interface probe has both an audible and illuminating light that indicate when a liquid level is encountered. The oil/water interface probe registers a solid tone and solidly lit light when LNAPL petroleum product is encountered and a beeping tone flashing light when groundwater is encountered. Depth to LNAPL measurements are obtained by lowering the probe attached to a cable marked in 0.01 foot intervals into the well until the probe of the meter intersects the product or groundwater. The measurements from the top of the riser pipe or TOC to the liquid level are recorded to the nearest 0.01 foot. The thickness of LNAPL is calculated by subtracting the depth to LNAPL measurement from the depth to groundwater measurement. The electronic interface probe is decontaminated between measurement locations. Soil Sampling and Field Screening Soil sampling is performed in general accordance with ASTM: 1586-84 where applicable. Sampling procedures are followed to protect the chemical integrity of the soil samples and minimize the potential for cross contamination between sample locations, including discarding of the exterior of the sample which contacts the auger bucket, acetate sleeve, or split barrel sampler, the use of stainless steel sampling equipment, and the thorough decontamination of sampling apparatus prior to use and between sample locations. Soil samples retained as a part of excavation or other intrusive “digging” activities may be collected from the bucket of excavation equipment or using a hand shovel, if appropriate. Care to collect soil samples from excavation equipment includes retrieving native soil from material that has not made contact with the excavating equipment. Samples are collected in sealable bags or by directly filling sample containers as described above. Sampling is performed using new, disposable nitrile gloves for each sample location to ensure sample integrity and minimize the potential for cross contamination or field personnel exposure to contaminants. Sampling equipment such as hand auger extensions and buckets, direct push samplers, split spoons or shovels, are decontaminated prior to their use in the collection of samples. Samples are placed within laboratory grade sample containers provided by the laboratory to which the samples are submitted, labeled, sealed, and placed in an ice filled cooler. An aliquot of the sample is typically placed in a clean sealable bag and allowed to reach ambient air temperature for future screening of volatile vapor content with a photoionization detector (PID), flame-ionization detector (FID) or other portable screening device. Screening of samples with a PID, FID or other field screening device is performed in accordance with device manufacturer specifications for screening, following calibration of the instrument based on manufacturer recommended procedures. Generalized Standard Operating Procedures (Not All Inclusive) WithersRavenel Our People. Your Success. Groundwater Sampling Groundwater samples are generally collected using one of three standard methods – through the use of a dedicated, disposable bailer, a peristaltic pump or submersible electric pump. When sampling with a bailer, a minimum of three well volumes of groundwater are extracted from the well as a means of purging, unless the well is purged to a “dry” state prior to the removal of three volumes of water. Prior to collection of the groundwater sample with the bailer, the water level is allowed to recover to within 80% of the original level measured prior to purging. When sampling with a peristaltic or submersible electric pump, polyethylene (PE) tubing (or equivalent) is emplaced into the screened section of the monitoring well, and the pump is used to extract water through the tubing. When using the either of these methods, general water quality measurements including but not limited to pH, temperature, dissolved oxygen (DO), oxygen reductive potential (ORP), specific conductivity and turbidity may be used as methods for determining when an adequate purge of the well has been conducted. When water quality parameters are measured, the resulting data are included in well purge forms or field notes specific to each site and sampling point. Following the purging of three well volumes of groundwater (in the case of the bailed well) or stability of monitored measurements (in the case of the peristaltic or submersible electric pump), the groundwater sample(s) are introduced directly into sample containers provided by the laboratory to which samples are ultimately submitted for analysis. Any samples requiring chemical preservation are contained in pre- preserved container(s) provided by the laboratory. Sampling is performed using new, disposable nitrile gloves for each sample location to ensure sample integrity and minimize the potential for cross contamination of samples or field personnel exposure to contaminants. Water Supply Well Sampling Sampling of water supply wells is accomplished through the collection of a representative sample from an in-line water tap or other point accessible for sampling. Where possible, the sample is collected from a point prior to any filtration or point of entry (POE) system which might be installed on a well. In some cases, samples will be collected from both pre and post-POE locations. Prior to the collection of samples through an in-place sampling point, the tap or sampling port is cleaned with an Alconox® and deionized water solution, rinsed with deionized water, and again with an isopropyl alcohol (IPA) rinse. In the case of active supply wells (e.g., a well with a useable well pump with an active power supply), the well pump is energized and allowed to run for a minimum of ten (10) minutes time, after which a sample is contained in laboratory grade sample containers as described in the previous section. Water quality parameters may be (but are not necessarily) measured in association with the well purging. Supply wells without active power supplies are not generally sampled, as the well seal cannot be compromised by individuals not certified as a well contractor. However, in the case of a well with no power supply or pump installed, samples could be obtained through the use of a bailer, peristaltic pump or electric submersible pump. Generalized Standard Operating Procedures (Not All Inclusive) WithersRavenel Our People. Your Success. Decontamination Procedures Decontamination procedures employed in the performance of field activities will vary dependent upon the method(s) of sampling performed at any site, but will generally include the following: • Remove excess soil/sludge from any sampling equipment as needed, • Wash and scrub the equipment with a phosphate-free detergent such as Alconox® or Liquinox® in a contaminant-free tap water solution. Use a brush to remove particulate matter and surface films as necessary, • Rinse thoroughly with tap water, • Rinse thoroughly with analyte-free water (deionized water),  Rinse thoroughly with isopropyl alcohol, • Allow the equipment to air dry, • Prevent inadvertent contamination during storage and transport (accomplished through storage of equipment in foil or plastic bags/sheeting). In the case of disposable bailers and tubing utilized for the purging and sampling of wells, these items may be decontaminated prior to their disposal. In general, no decontamination of these items is necessary prior to their use in sampling. WithersRavenel Our People. Your Success. APPENDIX E COMPOUND‐SPECIFIC ISOTOPE ANALYSIS INTERPRETATION