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HomeMy WebLinkAboutWA-27689_38813_CA_MRP_20230428 ENVIRONMENTAL | CIVIL | GEOTECHNICAL MONITORING REPORT US 17 COUNTRY STORE 1383 US HIGHWAY 17 SOUTH ELIZABETH CITY, PASQUOTANK COUNTY, NC NCDEQ INCIDENT NO. 38813 RISK CLASSIFICATION: I140D APRIL 28, 2023 NCDEQ CONTRACT NO. N122019D TASK AUTHORIZATION NO. 06 CATLIN PROJECT NO. 220209 PREPARED FOR: MR. HASSAN OSMAN NCDEQ, DWM, UST SECTION 1646 MAIL SERVICE CENTER RALEIGH, NC 27699-1646 PREPARED BY: CATLIN ENGINEERS AND SCIENTISTS 220 OLD DAIRY ROAD WILMINGTON, NC 28405 (910) 452-5861 CORPORATE LICENSURE NO. FOR ENGINEERING SERVICES C-0585 CORPORATE LICENSURE NO. FOR GEOLOGY SERVICES C-118 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 TABLE OF CONTENTS PAGE 1.0 SITE INFORMATION 1 2.0 EXECUTIVE SUMMARY 2 3.0 SCOPE OF SERVICES 2 4.0 SITE HISTORY AND CHARACTERIZATION 3 4.1 UST OWNER AND OPERATOR INFORMATION 3 4.2 UST INFORMATION 3 4.3 CONTAMINANT SOURCE INVENTORY 4 4.4 SITE CHARACTERISTICS 4 4.5 OWNERS AND OCCUPANTS OF ADJOINING/NEARBY PROPERTIES AND LAND USE 4 4.6 RECEPTOR INFORMATION 5 4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES 5 5.0 SITE GEOLOGY AND HYDROGEOLOGY 6 5.1 SOIL AND BEDROCK 6 5.2 HYDROGEOLOGY 7 6.0 SITE ASSESSMENT INFORMATION 7 6.1 MONITORING WELL INSTALLATION 8 6.2 GAUGING DATA 8 6.3 SAMPLING DATA 9 6.4 SUMMARY OF GROUNDWATER INFORMATION 9 6.5 EVALUATION OF ASSESSMENT INFORMATION 10 7.0 CONCLUSIONS AND RECOMMENDATIONS 11 8.0 LIMITATIONS 11 9.0 STATEMENTS AND CERTIFICATION 12 10.0 REFERENCES 12 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 TABLES TABLE 1 SITE HISTORY – UST AND OTHER RELEASE INFORMATION TABLE 2 PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION TABLE 3 WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA TABLE 4 SUMMARY OF GROUNDWATER LABORATORY RESULTS – STANDARD METHOD 6200B TABLE 5 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS – STANDARD METHOD 6200B TABLE 6 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS – EPA METHOD 625 TABLE 7 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS – MADEP EPH/VPH FIGURES FIGURE 1 SITE VICINITY MAP FIGURE 2 POTENTIAL RECEPTOR MAP FIGURE 3 SITE MAP FIGURE 4 GROUNDWATER ELEVATION – MARCH 29, 2023 FIGURE 5 MONITORING WELL GROUNDWATER SAMPLE ANALYTICAL RESULTS – MARCH 29, 2023 APPENDICES APPENDIX A HISTORICAL DATA APPENDIX B SITE PHOTOGRAPHS APPENDIX C JOB HAZARD ANALYSES AND FIELD DATA SHEETS APPENDIX D WELL LOG AND WELL CONSTRUCTION RECORD APPENDIX E LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 1 April 2023 1.0 SITE INFORMATION Site Identification Date: 04/28/2023 Site Risk/Priority Rank: I140D UST Number: WA-27689 Incident Number: 38813 Site Name: US 17 Country Store Facility ID: 00-01670 Site Location: 1383 US Hwy 17 S Nearest City/Town: Elizabeth City County: Pasquotank Description of Geographical Data Point: Former 10,000-gal diesel UST basin Location Method: Google Earth Latitude (decimal degrees): 36.259624 ° Longitude (decimal degrees): -76.302518° Contacts Information UST Owner: Hollowell Oil Company (Dissolved) Address: N/A Phone: N/A UST Operator: Hubert D. Ambrose (Deceased) Address: N/A Phone: N/A Property Owner: Ghanshyam R. Patel Address: 109 Golf Club Dr., Elizabeth City, NC 27909 Phone: (732) 735-3625 Property Occupant: Unknown Resident/Renter Address: 1382 US Hwy 17 S, Elizabeth City, NC 27909 Phone: N/A Consultant: CATLIN Engineers and Scientists (CATLIN) Address: 220 Old Dairy Rd., Wilmington, NC 28405 Phone: (910) 452-5861 Analytical Laboratory: Con-Test Analytical Laboratory State Certification: NC 652, NC-DW 25703 Address: 39 Spruce St., E. Longmeadow, MA 01028 Phone: (413) 525-2332 Release Information Date Discovered: 08/13/2015 Estimated Quantity of Release: Unknown Cause of Release: Leak in the UST system(s) Source of Release: UST system or associated fitting(s) Sizes and contents of UST system(s) from which the release occurred: • One 10,000-gallon gasoline (UST 1) • Two 10,000-gallon diesel (UST 4 & 6) • One 6,000-gallon gasoline (UST 2) • One 2,000-gallon kerosene (UST 3) • One 2,000-gallon diesel (UST 5) NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 2 April 2023 2.0 EXECUTIVE SUMMARY The US 17 Country Store site is located at 1383 US Highway 17 South, Elizabeth City, Pasquotank County, North Carolina. Six underground storage tanks (USTs) historically operated at the site. One 2,000-gallon diesel UST was previously abandoned in place in 1996. One 6,000-gallon gasoline, one 10,000-gallon gasoline, two 10,000-gallon diesel, and one 2,000-gallon kerosene USTs were removed from the site in June 2022. The purpose of this report is to document the latest well installation and groundwater sampling activities. On March 21 and 22, 2023, CATLIN Engineers and Scientists (CATLIN) personnel advanced one boring to 30 feet below land surface (BLS) for the construction of a Type III monitoring well (TMW-01). On March 29, 2023, CATLIN returned to the site for gauging and sampling activities. Groundwater was measured at approximately two feet deep across the site. Light non-aqueous phase liquid (LNAPL; aka free-phase product) was not measured in any of the monitoring wells. Groundwater samples from five monitoring wells were collected and submitted for laboratory analysis of volatile organic compounds (VOCs) per Standard Method (SM) 6200B plus ethylene dibromide (EDB), methyl tert-butyl ether (MTBE), and diisopropyl ether (DIPE). Laboratory results did not indicate any dissolved petroleum constituents above the concentrations established in Title 15A of the North Carolina Administrative Code, Subchapter 2L, Section .0202 Groundwater Quality Standards (2L GWQS) in the samples from MW-02 and TMW-01. Multiple targeted analytes were reported in the MW-04 sample at concentrations above 2L GWQS, but below the Gross Contaminant Levels (GCL). Only benzene was above 2L GWQS in the MW-01 and MW-03 samples. The VOC concentrations reported in the MW-01, MW-02, and MW-03 samples during this monitoring event are generally lower than those from the previous event (November 2022), while those in MW-04 have fluctuated. CATLIN recommends to: • Evaluate passive remedial and/or enhanced natural attenuation options. • Continue period monitoring (sampling). • Make additional efforts to obtain access and sample water supply well WSW-1. 3.0 SCOPE OF SERVICES The scope of services for this report were performed in general accordance with CATLIN proposal number 220209.6P, dated January 24, 2023. Services were authorized by NCDEQ’s Task Authorization (TA) #06, dated January 25, 2023, and Contract Number N122019D. NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 3 April 2023 The approved scope of services for this Task Authorization included to: • Install one Type III monitoring well and survey the top of casing (TOC) elevation; • Collect groundwater samples from five monitoring wells (MW-01 through MW-04 and TMW-01) and one water supply well (WSW-1) • Analyze seven water samples (five monitoring wells, one water supply well, and one trip blank) per SM 6200B (plus EDB, MTBE, and DIPE); and • Prepare and submit a monitoring report summarizing the findings. Access was not granted for water supply well WSW-1; therefore, this well was not sampled. The remaining scope of services was conducted in general accordance with the approved TA. 4.0 SITE HISTORY AND CHARACTERIZATION The US 17 Country Store site is located at 1383 US Highway 17 South, Elizabeth City, Pasquotank County, North Carolina (Figures 1 and 2). Summarized historical sampling and gauging data from previous consultants are provided in Appendix A. Site photographs are presented in Appendix B. 4.1 UST OWNER AND OPERATOR INFORMATION Hollowell Oil Company owned the six USTs historically operated on-site. The tanks were operated by Hubert Ambrose for petroleum retail sales. Hollowell Oil Co. is dissolved (1993) and Hubert Ambrose is deceased (2018). The site was accepted into the North Carolina UST Section Trust Fund Branch State Lead Program in April 2020 (NCDEQ, 2020). Available information regarding UST owners/operators is presented on Table 1. 4.2 UST INFORMATION Historically, one 2,000-gallon diesel UST operated on-site until April 1996. Due to existing structures placed over top of the tank, it was abandoned in place by other parties in May 1996 (CE&S, 1996). A 10,000-gallon gasoline UST and 6,000-gallon gasoline UST were installed in 1982, a 10,000-gallon diesel UST was installed in 1984, and a 2,000- gallon kerosene UST and a 10,000-gallon diesel USTs were installed in 1988. These five USTs presumably operated until their temporary closure in 2008 (NCDEQ, 2020). These tanks were removed by CATLIN in June 2022 (CATLIN, 2022A). NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 4 April 2023 Available UST system information is presented in Table 1 and the approximate former UST system locations are illustrated on Figure 2. 4.3 CONTAMINANT SOURCE INVENTORY An on-site release was discovered in August 2015 during site assessment activities. Groundwater analytical results revealed multiple VOCs at concentrations greater than their 2L GWQS and benzene up to 9,090 micrograms per liter (μg/L), which is above its GCL of 5,000 μg/L (ECES, 2015). 4.4 SITE CHARACTERISTICS The site previously operated as a country store and retail gas station. The property was passed to Hubert Ambrose’s heirs in 2018 (NCDEQ, 2020). Currently, the property is owned by Ghanshyam Patel and occupied by Automotive Solutions (a vehicle repair service). The parcel has three structures: the former store building, a repair garage (Automotive Solutions), and a small vacant building located on the northeast portion of the property. During recent site activities, it appeared that the former store was in the process of being remodeled and there was a residential dwelling upstairs. The terrain includes concrete, gravel parking surfaces, and grassy areas. The open, parking area is leased to commercial truck drivers for parking their personal vehicles and semi-trucks. During recent site activities, a number of the monitoring well concrete pads were found to be damaged. The damaged concrete pads were removed and replaced with larger and thicker concrete pads. Site photographs are presented in Appendix B. 4.5 OWNERS AND OCCUPANTS OF ADJOINING/NEARBY PROPERTIES AND LAND USE Properties in the site vicinity are mostly businesses and agricultural land. The site is bound by US Highway 17 South to the west and Simpson Ditch Road to the north. A gas station (Exxon) and convenience store are located to the north (across Simpson Ditch Road). The adjoining property to the east is owned by the Freeway Tabernacle Church and the property to the south is a business (B&S Enterprises, Inc.). Agricultural land is located to the north and west (across US Highway 17 South). NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 5 April 2023 4.6 RECEPTOR INFORMATION CATLIN conducted the most recent receptor survey for the US 17 Country Store site in November 2022. Potential receptors located within 1,500 feet of the subject site are illustrated on Figure 2 and pertinent receptor information from CATLIN (2022B) is described below and presented on Table 2. Based on utility data obtained from the Pasquotank County GIS map, public water is available to properties within 1,500 feet of the site. One non-potable well is located approximately 300 feet northwest from the source area, in an agricultural field across US Highway 17. The well appears to be used for irrigation; however, there is a spigot and hose at the well. There is concern that seasonal farm workers may drink water from the well. A drainage ditch is located approximately 395 feet northwest of the site. No perennial surface water bodies were identified within 1,500 feet of the site; the nearest one is an unnamed tributary of the Little River, located 4,260 feet northwest of the site. 4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES In April 1996, Coastal Engineers & Surveying (CE&S) conducted groundwater sampling in the vicinity of a 2,000-gallon diesel UST. A temporary monitoring well was installed near the tank and groundwater samples were collected for analysis per Environmental Protection Agency (EPA) Method 602/625. No analytes were reported above the laboratory detection limits. The UST was abandoned in place in May 1996 by Roger Turner & Sons, Inc. (CE&S, 1996). In August 2015, Eastern Carolina Environmental Services, Inc. (ECES) conducted a groundwater investigation and receptor survey. No water supply wells or surface water bodies were identified within 1,000 feet of the site. Eight temporary monitoring wells were installed and groundwater samples were collected for analysis per SM 6200B. Laboratory analytical results revealed multiple analytes above their 2L GWQS in all samples, and benzene exceeding its GCL. Based on these results, an intermediate risk classification was assigned (ECES, 2015). On behalf of NCDEQ, CATLIN conducted soil sampling activities in June 2021. Fourteen soil borings (SB-01 through SB-14) were advanced via direct push technology (DPT) in the vicinity of the remaining USTs. Soil samples were collected from each at approximately four feet BLS for waste characterization and analysis for total petroleum hydrocarbons (TPH) gasoline range organics (GRO) and diesel range organics (DRO) per ultraviolet florescence (UVF) methods. Laboratory analytical results indicated TPH GRO and/or DRO concentrations above State Action Levels in multiple NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 6 April 2023 samples, up to 3,774 milligrams per kilogram (mg/kg) TPH GRO and 20,678 mg/kg TPH DRO. However, the samples collected in the vicinity of the southern gasoline UST (UST 1) were below State Action Levels (CATLIN, 2021). CATLIN conducted UST closure activities in June 2022. The five remaining USTs (Tanks 1 through 4 and Tank 6) were closed by removal. A total of 450.41 tons of contaminated soil were excavated and disposed. Groundwater was encountered during the excavation activities and a LNAPL sheen was observed. Approximately 625 gallons of non-hazardous fluids were pumped from the tanks. No soil or groundwater samples were collected due to the prior soil assessment and waste characterization analyses (CATLIN, 2022A). A Limited Site Assessment (LSA) was performed by CATLIN in October and November 2022. Four Type II monitoring wells (MW-01 through MW-04) were installed. Groundwater samples were collected from the monitoring wells and analyzed for VOCs via SM 6200B (including EDB, MTBE, and DIPE), semi-VOCs via EPA Method 625, and extractable petroleum hydrocarbons (EPH)/volatile petroleum hydrocarbons (VPH) via Massachusetts Department of Environmental Protection (MADEP) methods. Benzene was reported above 2L GWQS in all four monitoring well samples. Multiple semi-VOCs and MADEP analytical fractions were reported in the MW-02, MW-03, and MW-04 samples above 2L GWQS. However, no contaminants were above GCL. One water supply well (WSW-1) that appeared to be used for watering crops was identified approximately 300 feet northwest of the site, and a drainage ditch runs along the northwest site boundary (CATLIN, 2022B). Portions of summarized historical sampling data from previous consultants are provided in Appendix A. 5.0 SITE GEOLOGY AND HYDROGEOLOGY 5.1 SOIL AND BEDROCK As defined in the Geologic Map of North Carolina, published by the North Carolina Department of Natural Resources and Community Development (1985), the site lies within the Coastal Plain physiographic province. Two natural subdivisions of the Coastal Plain were described by Stuckey (1965): the Tidewater region and the Tidewater. The project area is located within the Inner Coastal Plain, which is an area of constructional topography (Horton and Zullo, 1991). The Coastal Plain comprises a wedge-shaped sequence of stratified marine and non-marine sedimentary rocks deposited on crystalline basement. The NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 7 April 2023 sedimentary sequences range in age from Recent to lower Cretaceous (Narkunas, 1980). The site is underlain by undivided surficial deposits within the Coastal Plain. According to the 1985 Geologic Map of North Carolina, sand, clay, gravel, and peat are exposed in the site area. According to monitoring well boring logs from CATLIN (2022B), tan, clayey sand underlies the site to approximately three feet BLS. Sandy clay and/or clayey sand was encountered from three to eight feet BLS. Gray sand was observed up to 30 feet BLS during the installation of TMW-01 during this event. 5.2 HYDROGEOLOGY Groundwater – The Coastal Plain groundwater system consists of aquifers comprised of permeable sands, gravels, and limestones separated by confining units of less permeable sediment. According to Winner, Jr. and Coble (1989), the surficial aquifer consists primarily of fine sands, clays, shells, peat beds, and scattered deposits of coarse-grained material in the form of relic beach ridges and floodplain alluvium. The areal extent of the surficial aquifer in the Coastal Plain is approximately 25,000 square miles with an average thickness of 35 feet. The average estimated hydraulic conductivity is 29 feet per day (Winner, Jr. and Coble, 1989). The 2020 VHF identified three boreholes near the site to draw a cross-section: Elizabeth City RO Test, E 11I; PA-T2-62, F 10Q; and DWR Perquimans Test, F 13W. According to the VHF, the surficial aquifer extends to approximately 260 feet BLS. The Yorktown confining unit (approximately 10 feet thick) and associated aquifer are projected to underlie the surficial aquifer to 470 feet BLS. The Castle Hayne, Beaufort, Upper Cape Fear, and Lower Cape Fear aquifers are modeled to be present at further depths. Surface Water – A drainage ditch is located approximately 395 feet northwest of the site. No perennial surface water bodies were identified within 1,500 feet of the site. 6.0 SITE ASSESSMENT INFORMATION Field activities included installing one Type III monitoring well (TMW-01) and obtaining groundwater samples from five monitoring wells (MW-01 through MW-04 and TMW-01) and attempt to obtain an access agreement for sampling one water supply well (WSW-1). CATLIN conducted field activities on in general accordance with the approved TA and pre-prepared Health and Safety Plan (HASP). Daily safety briefings detailing hazards identified in the task specific job hazard analysis (JHA) NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 8 April 2023 sheets were conducted prior to initiating field work. The JHAs and field data sheets are included in Appendix C. 6.1 MONITORING WELL INSTALLATION On March 21 and 22, 2023, one boring was advanced to 30 feet BLS for monitoring well construction by a North Carolina Certified Well Contractor, utilizing hollow stem augers and mud rotary tooling with a Diedrich D-50 drill rig. Cuttings generated during drilling activities were spread on-site. The well (TMW-01) was constructed of new, threaded PVC casing and screen. No glues or cements were used in joining PVC components. New nitrile gloves were worn while handling all well materials. The monitoring well was constructed with a pointed PVC sediment trap, five feet of 2-inch diameter, 0.010-inch slotted PVC well screen, 25 feet of 2-inch diameter inner casing PVC, and 20 feet of 4-inch diameter outer casing PVC to the surface. The annular space was filled with coarse sand packed to approximately three feet above the well screen and bentonite chips were packed to within 20 feet of the ground surface. The bentonite chips were poured from the surface while simultaneously pouring water to facilitate hydration. The remaining 20 feet was filled with Portland cement poured from the surface. The well was finished with a concrete pad and flush-mount steel wellhead and locking well cap. After installation, the monitoring well was developed by over-pumping. The TOC elevation was measured using traditional survey methods (Rod and Level). The survey forms are included in Appendix C. Monitoring well construction information is summarized on Table 3 and a site map with monitoring well locations are illustrated on Figure 3. Site photographs are presented in Appendix B. The well log and Well Construction Record were submitted to NCDEQ on April 4, 2023; copies are provided in Appendix D. 6.2 GAUGING DATA During the March 2023 event, CATLIN personnel measured depth to water in five monitoring wells using an electronic water interface probe. To prevent cross contamination, the probe and cabling were decontaminated according to manufacturer’s recommendations between use in each well. Gauging data were recorded on an electronic groundwater sampling form using a tablet device. Gauging procedures were performed in general accordance with North Carolina Department of Environmental and Natural Resources (NCDENR) and NCDEQ Guidelines, and EPA Region 4 Operating Procedures. NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 9 April 2023 Depth to water ranged from 0.99 feet below top of casing (BTOC) (MW-01) to 2.77 feet BTOC (MW-04) in the Type II wells. Depth to water in Type III well TMW-01 was 2.98 feet BTOC. The depths to water in MW-01, MW-03, MW-04, and TMW-01 were above their respective screen intervals. LNAPL was not encountered during this monitoring event. Based on groundwater elevations calculated for this monitoring period, groundwater flow direction is towards the west. Monitoring well gauging results for events conducted by CATLIN are presented in Table 3. Groundwater elevations and flow direction are illustrated on Figure 4. Groundwater sampling forms with gauging data are provided in Appendix C. 6.3 SAMPLING DATA Following gauging, the wells were sampled in general accordance with NCDEQ Guidelines and EPA Region 4 Operating Procedures. Prior to obtaining a representative groundwater sample, each monitoring well was purged by removing a minimum of three well volumes using a new, disposable bailer. Groundwater field parameter data were measured at one-minute intervals using an In-Situ Aqua TROLL 600 Multiparameter Sonde (Aqua TROLL). Conductivity, pH, oxidation reduction potential (ORP), dissolved oxygen, and temperature measurements were recorded utilizing the VuSitu mobile application (version 1.17.12). The Aqua TROLL was decontaminated according to manufacturer’s recommendations and rinsed with distilled water between use at each monitoring well. Groundwater parameter data were transferred from the VuSitu mobile application to the electronic groundwater sampling forms. Copies of the groundwater sampling forms are available in Appendix C. Once a minimum of three well volumes were removed (or the well was bailed dry), groundwater samples were collected from the bailers and poured into appropriate, laboratory-provided, pre-preserved glassware, labeled, and placed on ice in an insulated cooler. The groundwater samples and laboratory-provided trip blank were submitted to Con-Test Analytical Laboratory (Certification NC 652 and NC-DW 25703) in East Longmeadow, Massachusetts, under proper chain of custody (COC) protocol and analyzed per SM 6200B (including EDB, MTBE, and DIPE). The laboratory analytical data and COC are included in Appendix E. 6.4 SUMMARY OF GROUNDWATER INFORMATION The latest groundwater sampling laboratory results for SM 6200B analysis are summarized in Table 4 and illustrated on Figure 5. Historical results for events conducted by CATLIN are in Tables 6 and 7. A copy of the complete laboratory report and COC documentation are in Appendix E. NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 10 April 2023 Monitoring Wells During the March 2023 sampling event, five monitoring well groundwater samples (MW-01 through MW-04 and TMW-01) were collected and submitted for analysis via SM 6200B (including EDB, MTBE, and DIPE. No analyte concentrations were detected above GCL in any of the monitoring well samples. Analytical results reported the following VOCs at concentrations above their 2L GWQS in the MW-01, MW-03, and MW-04 samples: •MW-01 and MW-03: benzene; and •MW-04: benzene, isopropylbenzene, MTBE, naphthalene, and n-propylbenzene. Water Supply Well A groundwater sample was not obtained from water supply well WSW-1. The property owner could not be reached through mail, and no one was present on site at the time of sampling activities. Trip Blank A laboratory-provided trip blank was submitted for analysis per SM 6200B. No targeted analytes were detected in the trip blank sample. 6.5 EVALUATION OF ASSESSMENT INFORMATION Extent of Contamination Benzene was above its 2L GWQS in the samples from MW-01 and MW-03. Multiple petroleum constituents were detected above their respective 2L GWQS in the sample from MW-04. However, no constituents were reported above GCL. A summary of monitoring well groundwater sample analytical results are illustrated on Figure 5. The dissolved phase contaminant plume is horizontally delineated to the south and is vertically delineated. The highest contaminant concentrations have historically been reported in samples from MW-03 and MW-04. The concentrations in samples obtained from MW-01, MW-02, and MW-03 appear to be decreasing in relation to the concentrations historically reported, while those in MW-04 have fluctuated. Cleanup Levels Achieved Soil – Approximately 450.41 of impacted soil have been removed from the site (CATLIN, 2022A). Soil samples obtained in 2021 indicate that TPH concentrations are above State Action Levels, up to 3,774 mg/kg TPH GRO and 20,678 mg/kg TPH DRO (CATLIN, 2021). NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 11 April 2023 Groundwater – Groundwater contaminant concentrations are above 2L GWQS, but below GCL at the site. LNAPL – LNAPL was not measured during this monitoring period. LNAPL has never been detected at the site. 7.0 CONCLUSIONS AND RECOMMENDATIONS Conclusions Groundwater monitoring findings for this period are summarized below: •One Type III monitoring well (TMW-01) was installed to 30 feet BLS. •Damaged concrete well pads were removed and replaced. •Groundwater samples were collected from MW-01 through MW-04 andTMW-01 and analyzed per SM 6200B (including EDB, MTBE, and DIPE). •Access was not granted to sample water supply well WSW-1. •Multiple contaminants were detected in the MW-04 sample at concentrationsabove their 2L GWQS. •Only benzene was above its 2L GWQS in the MW-01 and MW-03 samples. •No constituents were reported above their respective GCL. Recommendations CATLIN recommends to: •Evaluate passive remedial and/or enhanced natural attenuation options. •Continue period monitoring (sampling). •Make additional efforts to obtain access and sample water supply wellWSW-1. 8.0 LIMITATIONS The soil and groundwater samples analyzed as part of this investigation only provide isolated data points and may not represent conditions at every location in the project area. Analyses and conclusions of this report, being based on interpolation of data points at the project area, may not be completely representative of all site conditions. Conclusions and recommendations of this investigation and report are based on the best available data in an effort to comply with current regulatory requirements. NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 12 April 2023 9.0 STATEMENTS AND CERTIFICATION 1 Enter the date the monitoring report was due. April 28, 2023 Will this report be submitted after the established due date? NO 2 Was any required information from the above template missing from this report? YES No cross sections are provided 3 If applicable, will any of the proposed attenuation milestones under the schedule approved in the Corrective Action Plan not be met? NA No CAP has been submitted for this site. 4 Does any known or suspected source zone soil contamination or free product remain outside of the assessed area that could be inhibiting natural attenuation? NO 5 Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite or offsite source? NO 6 Certification: I, Benjamin J. Ashba, a Licensed Geologist for CATLIN Engineers and Scientists, do certify that the information contained in this report is correct and accurate to the best of my knowledge. CATLIN Engineers and Scientists is licensed to practice geology in North Carolina. The certification number of the company or corporation is C-118. 10.0 REFERENCES CATLIN Engineers and Scientists, Letter Report, US 17 Country Store, 851 Halls Creek Road, Elizabeth City, NC 27909, Incident Number: 38813, Risk Classification: I140D, July 30, 2021. CATLIN Engineers and Scientists, UST Closure Report, US 17 Country Store, 1383 US Highway 17 South, Elizabeth City, Pasquotank County, North Carolina, NCDEQ Incident No: 38813, Risk Classification: I140D, July 20, 2022(A). CATLIN Engineers and Scientists, Limited Site Assessment Report, US 17 Country Store, 1383 US Highway 17 South, Elizabeth City, Pasquotank County, North Carolina, NCDEQ Incident No: 38813, Risk Classification: I140D, December 22, 2022(B). Coastal Engineering and Surveying, Re: Country Store, Hwy 17 South, Elizabeth City, UST Closure File 2099-Posquotank, June 21, 1996. NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 13 April 2023 County of Pasquotank, North Carolina, Zoning Ordinance, June 12, 2021. Eastern Carolina Environmental Services, Inc., Ground-Water Investigation and Receptor Survey, Hubert Ambrose Property – 1383 US Highway 17 South, Elizabeth City, Pasquotank County, North Carolina, August 25, 2015. Horton, J. Wright and Zullo, Vicor A., The Geology of the Carolinas, 1991. Narkunas, James, Groundwater Evaluation in the Central Coastal Plain of North Carolina, January 1, 1980. NCDENR, UST Section, North Carolina Department of Environmental Quality, Division of Environmental Management, Underground Storage Tank Closure Report, July 26, 1996. NCDENR, UST Section, North Carolina Department of Environmental Quality, Division of Environmental Management, UST-3 Form, Notice of Intent: UST Permanent Closure or Change-in-Service, May 15, 1996. NCDENR, UST Section, North Carolina Department of Environmental Quality, Division of Environmental Management, UST-2 Form, Site Investigation Report for Permanent Closure or Change-in-Service of UST, June 24, 1996. NCDEQ, Division of Water Resources, 2020 Visual Hydrogeologic Framework, North Carolina Hydrogeological Database, ncwater.org/?page=350, accessed November 15, 2022. NCDEQ, Division of Waste Management, Document Management System (Laserfiche), Miscellaneous (documents associated with Incident No. 18221), accessed November 2020-April 2021. NCDEQ, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, Guidelines for Sampling, UST Section, North Carolina Department of Environment and Natural Resources, December 1, 2013. NCDEQ, UST Section, North Carolina Department of Environment Quality, Division of Waste Management, Guidelines for Site Checks, Tank Closure, and Initial Response and Abatement for Petroleum and Hazardous Substance UST Releases, Petroleum Non-UST Releases, January 19, 2021. NCDEQ, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, UST Section Assessment Guidelines, Petroleum and Hazardous Substance UST Releases, Petroleum Non-UST Releases, January 19, 2021. NCDEQ, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, Memorandum, Recommendation for State Lead Cleanup, Incident Name: US 17 Country Store, Incident# (UST#): 38813 (WA-27689), March 30, 2020. NCDEQ, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, State Lead Acceptance, US 17 Country Store, 1383 US Hwy 17 South, Elizabeth City, Pasquotank County, North Carolina, Incident Numbers: 38813, Risk Classification: Intermediate, September 8, 2020. NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 14 April 2023 Rhodes, Thomas S., and Conrad, Stephen G., 1985, Geologic Map of North Carolina: Department of Natural Resources and Community Development, Division of Land Resources, and the NC Geological Survey, compiled by Brown, Philip M., et al, and Parker, John M. III, and in association with the State Geologic Map Advisory Committee, scale 1:500,000. Pasquotank County, North Carolina, https://www.pasquotankcountync.org/, December 2022. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Guidance – Design and Installation of Monitoring Wells, Striggow, B., US. EPA Report No. SESGUID-101-R0, Effective Date February 18, 2008. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Field Equipment Cleaning and Decontamination at the FEC, Striggow, B., U.S. EPA Report No. SESDPROC-206-R3, Effective Date December 18, 2015. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Groundwater Level and Well Depth Measurement, Striggow, B., U.S. EPA Report No. SESDPROC-105-R3, Effective Date November 3, 2016. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Groundwater Sampling, Striggow, B., U.S. EPA Report No. SESDPROC-301-R4, Effective Date April 26, 2017. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – In Situ Water Quality Monitoring, Chief, Field Services Branch, U.S. EPA Report No. SESDPROC-111-R4, Effective Date March 14, 2018. Winner M.D, Jr. and Coble R.W., Hydrogeologic Framework of the North Carolina Coastal Plain Aquifer System, 1996. NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 TABLES Page 1 of 1 TABLE 1 SITE HISTORY — UST AND OTHER RELEASE INFORMATION Incident Name and No.: US 17 Country Store - 38813 UST ID Number Name of Owner/ Operator Last Contents Previous Contents Capacity (gal) Construction Details Tank Dimensions (feet) Installation Date (mm/dd/yy) Date Removed (mm/dd/yy) 1 Gasoline Gasoline 10,000 Single Wall Steel 22.75 x 8.5 04/22/82 06/21/22 2 Gasoline Gasoline 6,000 Single Wall Steel 16 x 8 04/22/82 06/21/22 3 Kerosene Kerosene 2,000 Single Wall Steel 12 x 5.4 04/22/88 06/21/22 4 Diesel Diesel 10,000 Single Wall Steel 26 x 8 04/22/88 06/21/22 5*Diesel Diesel 2,000 Steel 12 x 4.5 04/22/82 AIP 05/28/96 6 Diesel Diesel 10,000 Single Wall Steel 26.5 x 8 01/01/84 06/21/22 Incident Number Material Released Date Release Discovered (mm/dd/yy) 38813 Petroleum 08/13/15 Information on UST 5 obtained from C&S (1996). Information on release obtained from ECE (2015) and NCDEQ (2020). * = Tank system was not associated with the release. gal = gallons XX = Exact date unknown. AIP = Abandoned In Place Hollowell Oil Co. (dissolved) / Hubert D. Ambrose (deceased) Description of the Release Groundwater contamination was discovered during site assessment activities in August 2015. Dates of Ownership/ Operation (mm/dd/yy) 01/01/84 - 11/06/08 04/22/82 - 04/XX/96 04/22/82 - 11/06/08 04/22/88 - 11/06/08 NCDEQ; 38813_US 17 Country Store; T1_Site History CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 Page 1 of 1 TABLE 2 Incident Name and No.: US 17 Country Store - 38813 Well ID Property Address Parcel ID Owner Name Owner Mailing Address Well Use Distance/ Direction from Source Area (ft.) Comment WSW-1 Intersection of US Hwy 17 & Foreman Bundy Rd 7992 03444414 Yeng K Choo & Ann Kuan Tan 2507 Dan & Mary Street, Elizabeth City, NC 27909 Active Non- Potable 300 / NW Appeared to be used for watering crops. Receptor ID Location Contact Distance/ Direction from Source Area (ft.) Drainage Ditch Parrallel to US 17 —Northwest Site Boundary Information obtained from a field survey conducted on November 9, 2022, receptor survey letters sent to properties within 1,000 feet. ft. = feet Drainage ditch along the site boundary, suspected to intersect with the water table. Description PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION NCDEQ; 38813_US 17 Country Store; T2_Receptor Info CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 Page 1 of 1 TABLE 3 WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA Incident Name and No.: US 17 Country Store - 38813 Well ID Date Installed (mm/dd/yy) Date Water Level Measured (mm/dd/yy) Well Diameter (inches) Well Casing Depth (ft. BLS) Screened Interval (x to y ft. BLS) Bottom of Well (ft. BLS) Top of Casing Elevation (ft.) Free-Phase Product Thickness* Depth to Groundwater from Top of Casing (ft.) Groundwater Elevation (ft.)Comments 11/09/22 NMT 4.64 95.36 03/29/23 NMT 0.99 99.01 Ɨ 11/09/22 NMT 5.13 94.98 03/29/23 NMT 1.87 98.24 11/09/22 NMT 5.05 95.03 03/29/23 NMT 2.76 97.32 Ɨ 11/09/22 NMT 5.04 95.03 03/29/23 NMT 2.77 97.30 Ɨ TMW-01 03/22/23 03/29/23 4.0/2.0 25.0 25.0-30.0 30.0 100.14 NMT 2.98 97.16 Type III; Ɨ ft. BLS = feet Below Land Surface NMT = No Measurable Thickness Ɨ = Water level was measured above the screened interval. 10/25/22 10/25/22 10/25/22 MW-04 MW-03 MW-02 MW-01 100.0014.04.0-14.04.02.0 2.0 1.5 1.5-11.5 11.5 100.11 100.0814.04.0-14.04.02.0 * = if free-phase product is present in a well, ground water elevation should be calculated by : [top of casing elevation - depth to water]+ [free product thickness x specific gravity of the fuel type] 2.0 4.0 4.0-14.0 14.0 100.0710/25/22 NCDEQ; 38813_US 17 Country Store; T3_Well Construction & Gauging CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 Page 1 of 1 TABLE 4 SUMMARY OF GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B Incident Name and No.: US 17 Country Store - 38813 Date Collected (mm/dd/yy) 03/29/23 <2.0 4.1 <1.7 0.25 J 0.87 <0.14 <0.20 3.4 0.81 4.9 <0.38 1.0 <0.22 0.38 J <0.15 <0.73 BMDL 03/29/23 <4.0 <0.37 <3.4 0.82 J 1.2 <0.28 <0.40 <0.44 0.72 J <0.34 <0.76 0.98 J <0.45 <0.40 <0.30 <1.47 BMDL 03/29/23 <8.0 2.1 <6.7 0.60 J <0.51 <0.57 <0.81 2.4 1.9 J 5.1 <1.5 3.4 <0.89 <0.80 0.64 J <2.97 BMDL 03/29/23 <20 780 24 J 24 17 2.3 J 13 350 83 430 79 L 220 16 35 <1.5 32.5 J BMDL 03/29/23 12 J 0.76 <1.7 1.4 0.55 <0.14 <0.20 3.8 1.1 3.9 1.4 L 2.5 6.4 13 1.1 8.60 BMDL 03/29/23 <2.0 <0.18 <1.7 <0.15 <0.13 <0.14 <0.20 <0.22 <0.15 <0.17 <0.38 <0.12 <0.22 <0.20 <0.15 <0.73 BMDL All results in micrograms per liter (µg/L). BMDL = Below Method Detection Limit (refer to analytical report for a complete list of analytes and detection limits) Bold results indicate concentrations above 2L GWQS. GCL = Gross Contaminant Level 2L GWQS = NCAC T15A:02L Groundwater Quality Standards < = Less than method detection limit J = Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated concentration (CLP J-Flag). L = Laboratory fortified blank/laboratory control sample recovery and duplicate recovery are outside of control limits. Reported value for this compound is likely to be biased on the low side (L-04 Flag). MW-01 Well/ Sample ID 28,500 400 24,100 400 50,000 500 80,000 600 Trip Blank GCL (µg/L) 2L GWQS (µg/L) 6,000,000 6,000 5,000 1 4,000,000 4,000 5,900 70 8,800 70 14,750 70 70,000 70 TMW-01 Varies Varies 30,500 70 20,000 20 6,000 6 26,100 70 260,000 600 MW-04 MW-03 MW-02 Total Xylenes All Other SM 6200B Analytes1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenesec-Butylbenzene Contaminant of Concern Acetone Benzene 2-Butanone (MEK)n-ButylbenzeneMethyl tert-Butyl Ether (MTBE)Naphthalene n-PropylbenzeneToluene tert-Butylbenzene Diisopropyl Ether (DIPE)EthylbenzeneIsopropylbenzene (Cumene)NCDEQ; 38813_US 17 Country Store; T4_GW Results (SM 6200B) CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 Page 1 of 1 TABLE 5 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B Incident Name and No.: US 17 Country Store - 38813 Date Collected (mm/dd/yy) 11/09/22 5.6 J 19 <3.2 1.1 1.1 <0.26 <0.26 <0.26 9.5 1.9 <0.19 17 3.1 3.4 0.58 J 1.6 0.36 J 5.9 BMDL 03/29/23 <2.0 4.1 <1.7 0.25 J 0.87 <0.14 <0.13 <0.20 3.4 0.81 <0.13 4.9 <0.38 1.0 <0.22 0.38 J <0.15 <0.73 BMDL 11/09/22 <4.1 140 <3.2 8.8 13 0.50 J 0.58 J 0.32 J 5.1 18 <0.19 48 7.5 24 1.4 <0.40 <0.23 <2.46 J*BMDL 03/29/23 <4.0 <0.37 <3.4 0.82 J 1.2 <0.28 <0.26 <0.40 <0.44 0.72 J <0.25 <0.34 <0.76 0.98 J <0.45 <0.40 <0.30 <1.47 BMDL 11/09/22 <10 96 <8.1 14 7.8 <0.64 <0.65 7.6 130 36 3.7 38 51 83 69 390 120 560 BMDL 03/29/23 <8.0 2.1 <6.7 0.60 J <0.51 <0.57 <0.51 <0.81 2.4 1.9 J <0.51 5.1 <1.5 3.4 <0.89 <0.80 0.64 J <2.97 BMDL 11/09/22 <8.1 180 16 J 25 17 2.4 <0.52 2.7 250 120 1.0 J 12 91 320 4.9 54 1.6 J 23 BMDL 03/29/23 <20 780 24 J 24 17 2.3 J <1.3 13 350 83 <1.3 430 79 L 220 16 35 <1.5 32.5 J BMDL 03/29/23 12 J 0.76 <1.7 1.4 0.55 <0.14 <0.13 <0.20 3.8 1.1 <0.13 3.9 1.4 L 2.5 6.4 13 1.1 8.60 BMDL All results in micrograms per liter (µg/L). BMDL = Below Method Detection Limit Bold results indicate concentrations above 2L GWQS. GCL = Gross Contaminant Level 2L GWQS = NCAC T15A:02L Groundwater Quality Standards < = Less than method detection limit * = The value represents the sum of the reported practical quantitation limit of one analyte and the detected concentration of the other analyte. J = Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated concentration (CLP J-Flag). L = Laboratory fortified blank/laboratory control sample recovery and duplicate recovery are outside of control limits. Reported value for this compound is likely to be biased on the low side (L-04 Flag).p-Isopropyltoluene (p-Cymene)Contaminant of Concern Acetone Benzene 2-Butanone (MEK)n-Butylbenzenesec-Butylbenzene Well/ Sample ID tert-Butylbenzene 1,4-Dichlorobenzene Diisopropyl Ether (DIPE)EthylbenzeneIsopropylbenzene (Cumene)Total Xylenes All Other SM 6200B AnalytesMethyl tert-Butyl Ether (MTBE)Naphthalene n-PropylbenzeneToluene 1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneVaries Varies 30,500 70 11,700 25 20,000 20 6,000 6 26,100 70 260,000 600 80,000 600 28,500 400 24,100 400 50,000 500 GCL (µg/L) 2L GWQS (µg/L) 6,000,000 6,000 5,000 1 4,000,000 4,000 5,900 70 8,800 70 14,750 70 405 6 70,000 70 TMW-01 MW-04 MW-03 MW-02 MW-01 NCDEQ; 38813_US 17 Country Store; T5_Historical GW (SM 6200B) CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 Page 1 of 1 Date Collected (mm/dd/yy) 11/09/22 <0.567 <0.503 <0.457 <0.767 <0.568 <0.672 <0.755 <0.523 <0.519 <0.249 <0.500 <0.669 BMDL 11/09/22 3.80 J 0.689 J <0.464 <0.780 8.53 4.70 J 78.5 13 <0.527 2.09 J <0.508 2.26 J BMDL 11/09/22 <0.561 <0.498 <0.452 2.50 J <0.562 15.2 13.9 <0.518 0.984 J <0.246 0.789 J <0.662 BMDL 11/09/22 <0.580 <0.514 0.469 J <0.784 0.950 J 68.8 90.9 <0.535 <0.530 1.71 J <0.511 <0.684 BMDL All results in micrograms per liter (µg/L). EPA = Environmental Protection Agency BMDL = Below Method Detection Limit Bold results indicate concentrations above 2L GWQS. GCL = Gross Contaminant Level 2L GWQS = NCAC T15A:02L Groundwater Quality Standards NE = Not Established < = Less than method detection limit J = Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated concentration (CLP J-Flag). Varies Varies GCL (µg/L) 2L GWQS (µg/L) 1,950 80 2,000 2,000 845 300 6,000 6 NE NE 100,000 100 400,000 400 30,000 30 NE NE 12,000 30 550 200 TABLE 6 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS — EPA METHOD 625 Incident Name and No.: US 17 Country Store - 38813 MW-04 MW-03 200 200PyreneContaminant of Concern Well/ Sample ID AcenaphtheneAnthraceneFluoreneNaphthalene2-MethylnaphthalenePhenanthreneAll Other EPA 625 AnalytesMW-01 MW-02 3/4-MethylphenolPhenol2-Methylphenol2,4-DimethylphenolDiethylphthalateNCDEQ; 38813_US 17 Country Store; T6_Historical GW (EPA 625) CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 Page 1 of 1 TABLE 7 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS — MADEP EPH/VPH Incident Name and No.: US 17 Country Store - 38813 Date Collected (mm/dd/yy) 11/09/22 100 <95 <95 210 <200 <200 210 <300 <95 <295 ƚ 2,100 610 1,800 340 210 580 340 2,310 610 2,380 440 H,S 180 H,S 800 H,S 340 210 580 340 650 H,S 180 H,S 1,380 H,S 11/09/22 150 <96 230 1,400 730 1,700 1,400 880 <96 1,930 170 <98 270 2,300 900 1,900 2,300 1,070 <98 2,170 240 H <99 H 230 H 2,300 900 1,900 2,300 1,140 H <99 H 2,130 H All results in micrograms per liter (µg/L). MADEP = Massachusetts Department of Environmental Protection EPH = Extractable Petroleum Hydrocarbon VPH = Volatile Petroleum Hydrocarbon Bold results indicate concentrations above 2L GWQS. GCL = Gross Contaminant Level 2L GWQS = NCAC T15A:02L Groundwater Quality Standards < = Less than method detection limit NE = Not Established ƚ = The method detection limit is above the 2L GWQS. H = Sample was extracted past the recommended holding time (H-06 Flag). S = Sample was re-extracted outside of holding time since surrogate standard recovery was outside of control limits. Data from analysis performed outside of holding time is also reported since surrogate recovery is acceptable (S-10 Flag). ** = Sample was run twice for EPH analysis due to laboratory issues (See H and S Flags). Refer to the analytical report for all flags and the case narrative summary.C9-C22 AromaticsWell/ Sample ID Method EPH Analytical Fractions VPH Analytical Fractions Combined MADEP EPH/VPH Fractions Contaminant of Concern C9-C18 AliphaticC19-C36 AliphaticC11-C22 AromaticC5-C8 AliphaticC9-C12 AliphaticNE 200 C9-C10 AromaticC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsMW-01 GCL (µg/L) 2L GWQS (µg/L) NE 700 NE 10,000 MW-03 11/09/22MW-04** 11/09/22MW-02** NE 200 NE 400 NE 700 NE 200 NE 400 NE 700 NE 10,000 NCDEQ; 38813_US 17 Country Store; T7_Historical GW (MADEP) CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 FIGURES FIGUREPROJECTTITLE 1SITE VICINITY MAP SITE LOCATIONUS HWY 17 SFOREMAN BUNDY RD Copyright:© 2013 National Geographic Society, i-cubed 2,000 0 2,000 4,0001,000 Feet ³ US 17 COUNTRY STORE1383 US HWY 17 SOUTHELIZABETH CITY, NC JOB NO.DATE SCALE DRAWN BY/CHECKED BY220209APRIL 2023 AS SHOWN KMC/BJA INCIDENT NO. 38813 FIGUREPROJECTTITLE 2POTENTIAL RECEPTOR MAP !(W SITE LOCATIONUS HWY 17 SFOREMAN BUNDY RD 1 ,5 0 0 F EET RADIUS 500F E E T RADIUS WSW-1 DRAINAGE DITCHDRAINAGE DITCH Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 500 0 500 1,000250 Feet ³ US 17 COUNTRY STORE1383 US HWY 17 SOUTHELIZABETH CITY, NC JOB NO.DATE SCALE DRAWN BY/CHECKED BY220209APRIL 2023 AS SHOWN KMC/BJAINCIDENT NO.38813 LEGEND Active Non-Potable Water Supply Well!(W FIGUREPROJECTTITLE 3 !> !> !> !> !(> FORMER COUNTRY STOREUS HIGHWAY 17 S2,000-GALKEROSENE UST KEROSENE DISPENSER DISPENSERS DIESELDISPENSERS 10,000-GALDIESEL UST 10,000-GALGASOLINEUST DISPENSERS 6,000-GALGASOLINE UST !(V !(V 2,000-GAL DIESEL UST(ABANDONED IN PLACE) 10,000-GALDIESEL UST MW-01 MW-02 MW-03 MW-04TMW-01 Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community ³ 30 0 30 6015 Feet NOTES: 1. UST system components and utility locations provided bySEPI Geohpysical Investigation (2021) and are approximate.2. Well locations were obtained from field activities conducted by CATLIN on October 25, 2022 and March 22, 2023. Parcel Boundary Assumed Supply Lines UST System ElectricalComponent LEGEND Vent(s)!(V Vent Lines (Removed) Telephone Lines Unknown Lines SITE MAPUS 17 COUNTRY STORE1383 US HWY 17 SOUTHELIZABETH CITY, NC JOB NO.DATE SCALE DRAWN BY/CHECKED BY220209APRIL 2023 AS SHOWN KMC/BJA INCIDENT NO. 38813 Approximate Location of Former UST System Assumed Supply Lines (Abandoned in Place) MonitoringWell (Type II)!> Excavation Limits MonitoringWell (Type III)((> FIGUREPROJECTTITLE 4 !> !> !> !> !(><US HIGHWAY 17 S!(V !(V MW-01(99.01) MW-02(98.24) MW-03(97.32) MW-04(97.30) TMW-01*(97.16)98.7598.5098.2598.0097.7597.50Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community ³ 30 0 30 6015 Feet NOTES: 1. UST system components and utility locations provided bySEPI Geohpysical Investigation (2021) and are approximate.2. Well locations were obtained from field activities conducted by CATLIN on October 25, 2022 and March 22, 2023.3. The groundwater elevation contour interval is 0.25 feet. * = Deep well; elevation not used for contouring purposes. GROUNDWATER ELEVATION –MARCH 29, 2023 US 17 COUNTRY STORE1383 US HWY 17 SOUTHELIZABETH CITY, NC JOB NO.DATE SCALE DRAWN BY/CHECKED BY220209APRIL 2023 AS SHOWN KMC/BJAINCIDENT NO.38813 Parcel Boundary Assumed Supply Lines UST System ElectricalComponent LEGEND Vent(s)!(V Vent Lines (Removed) Approximate Location of Former UST System Assumed Supply Lines (Abandoned in Place) Gauged MonitoringWell (Type II)!> Gauged Monitoring Well (Type III)!(> Groundwater Contour Groundwater Flow Direction <Groundwater Elevation (Feet)(##) FIGUREPROJECTTITLE 5 !> !> !> !> !(> !(V !(V MW-01 MW-02 MW-03 MW-04TMW-01* ESTIMATED HORIZONTAL EXTENT OF 2L GWQS EXCEEDANCES ?? ?????Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community ³ 30 0 30 6015 Feet NOTES: 1. UST system components and utility locations provided bySEPI Geohpysical Investigation (2021) and are approximate.2. Well locations were obtained from field activities conducted by CATLIN on October 25, 2022 and March 22, 2023.3. * = Deep well; analytical results not used for contouring purposes Parcel Boundary Assumed Supply Lines UST System ElectricalComponent LEGEND Vent(s)!(V Vent Lines (Removed) MONITORING WELLGROUNDWATER SAMPLEANALYTICAL RESULTS –MARCH 29, 2023 US 17 COUNTRY STORE1383 US HWY 17 SOUTHELIZABETH CITY, NC JOB NO.DATE SCALE DRAWN BY/CHECKED BY220209APRIL 2023 AS SHOWN KMC/BJAINCIDENT NO.38813 Approximate Location of Former UST System Assumed Supply Lines (Abandoned in Place) Sampled MonitoringWell (Type II)!> Sampled Monitoring Well (Type III)!(> Incident Name and No.: US 17 Country Store - 38813 DateCollected 03/29/23 4.1 0.81 4.9 <0.38 1.003/29/23 <0.37 0.72 J <0.34 <0.76 0.98 J03/29/23 2.1 1.9 J 5.1 <1.5 3.403/29/23 780 83 430 79 L 22003/29/23 0.76 1.1 3.9 1.4 L 2.5 All results in micrograms per liter (µg/L).Refer to Table 4 for all results and notes.Bold results are above 2L GWQS. MW-04 MW-02MW-03 SUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B Contaminant of Concern Benzene Naphthalene n-PropylbenzeneIsopropylbenzene (Cumene)Methyl tert-Butyl Ether (MTBE)Well/ SampleIDMW-01 TMW-01 GCL (µg/L)2L GWQS (µg/L) 5,0001 6,0006 26,1007020,0002030,50070 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 APPENDICES NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 APPENDIX A HISTORICAL DATA APPENDIX A HISTORICAL DATA (ECES, 2015) NCDEQ; 38813_US 17 Country Store CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 APPENDIX A HISTORICAL DATA (ECES, 2015) NCDEQ; 38813_US 17 Country Store CATLIN Project No. 220209 CATLIN Engineers and Scientists April 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 APPENDIX B SITE PHOTOGRAPHS APPENDIX B SITE PHOTOGRAPHS – MARCH 21 AND 22, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store Site / Drill Rig Facing East US 17 Country Store Site Facing Southeast APPENDIX B SITE PHOTOGRAPHS – MARCH 21 AND 22, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store Site Facing Southwest US 17 Country Store Drilling TMW-01 Facing East APPENDIX B SITE PHOTOGRAPHS – MARCH 21 AND 22, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store Drilling TMW-01 US 17 Country Store Developing TMW-01 APPENDIX B SITE PHOTOGRAPHS – MARCH 21 AND 22, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store Finished TMW-01 Facing Southeast US 17 Country Store Damaged MW-03 Facing Southwest APPENDIX B SITE PHOTOGRAPHS – MARCH 21 AND 22, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store Damaged MW-02 Facing Northeast US 17 Country Store Damaged MW-02 APPENDIX B SITE PHOTOGRAPHS – MARCH 29, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store Site Facing East US 17 Country Store MW-01 Facing Southeast APPENDIX B SITE PHOTOGRAPHS – MARCH 29, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store MW-01 Sampling US 17 Country Store MW-01 Well Cap & Lock APPENDIX B SITE PHOTOGRAPHS – MARCH 29, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store MW-02 After Rehab US 17 Country Store MW-02 After Rehab APPENDIX B SITE PHOTOGRAPHS – MARCH 29, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store MW-03 After Rehab US 17 Country Store MW-02 After Rehab APPENDIX B SITE PHOTOGRAPHS – MARCH 29, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store MW-04 US 17 Country Store MW-04 APPENDIX B SITE PHOTOGRAPHS – MARCH 29, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store MW-04 (Right) US 17 Country Store TMW-01 (Left) APPENDIX B SITE PHOTOGRAPHS – MARCH 29, 2023 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 US 17 Country Store WSW-1 US 17 Country Store WSW-1 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 APPENDIX C JOB HAZARD ANALYSES AND FIELD DATA SHEETS Source Exposure Limit Groundwater and/or soil vapor 0.5 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 100 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 20 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 100 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 50 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 10 ppm TLV-TWA ACGIH Source Exposure Limit atmosphere N/A atmosphere N/A surroundings N/A Drill Rig N/A tools and materials N/A Drill Rig N/A Drill Rig 85 dBA Exposure Potential Likely Likely Likely Start Stop 10:45 14:45 14:45 14:50 14:50 17:30 17:30 18:00 7:00 7:30 7:30 7:45 7:45 12:30 12:30 Date and Time: 3/21/23 @ 14:50 3/22/23 @ 07:45 3/21/23 @ 14:50 3/22/23 @ 07:45 3/21/23 @ 14:50 3/22/23 @ 07:45 Tommy Chalmers / CATLIN Cameron Stratton / CATLIN Equipment Used:PPE D/Water Level Indicator/Sampling Supplies/Generator/Pressure Washer PERSONNEL ONSITE Name and Company (Print)Signature Trevor Mizelle / CATLIN Cleaned up equipment and departed site. Snakes surroundings Poison Plants (Ivy, Oak, and/or Sumac)surroundings DAILY TASK Vehicle # 50 Mileage:Start: End: Travel from Wilmington office to site on March 21, 2023. On-site Health and Safety Meeting covering proper PPE, weather concerns, equipment and road safety. Set up, drilled TMW-01 to 20' w/ mud rotary and taking split spoons.Changed to HSA and drilled to 20'. Grout and set outside casing. Travel from site ot hotel. Travel from hotel to site on March 22, 2023. Drilled out casing set yesterday with mud rotary. Continued down to 30' taking split spoons. Set Type III MW @ 30' w/ 5' screen. Survey new well with existing well MW-01. Take pics of wells and located destroyed wells. On-site Health and Safety Meeting covering proper PPE, weather concerns, equipment and road safety. Insect bites and stings surroundings Drill Rig Operations Likely Heavy Lifting/ Moving Likely Rolling or Pinching Objects Likely Noise Likely Biological Hazards Name of Biological Hazard Source Cold Weather Operations Unlikely Heat (ambient)Likely Slips/Trips/Falls Likely NAPHTHALENE ppm * Gas and/or Diesel Physical Hazards Name of Physical Hazard Exposure Level/ Potential TOLUENE ppm XYLENE, ALL ISOMERS ppm METHYL TERT-BUTYL ETHER ppm ETHYL BENZENE ppm Date(s) this JHA Conducted: 3/21/23 & 3/22/23 Employee Certifying this JHA Print Name: Benjamin J. Ashba, P.G.Signature: Weather:Sunny, 70's Potential Chemicals Concentration BENZENE ppm Site-Specific Job Hazard Analysis Operational Phase Task/Operation Location Where Task/Operation Performed Monitoring Soil Borings/Well Installations Lancaster Store, Elizabeth City, NC Page 1 of 1 CLIENT'S CATLIN NAME:PROJECT:CATLIN PROJECT #:PHASE: INSTRUMENT #:ELEVATION (TBM):DATE:3/22/2023 ROD #:UNITS (FT./M): TOP BOTTOM5.665.105.365.135.665.10 FIELD NOTES BY:DATE:3/22/2023 INSTRUMENT BY: NOTES REDUCED BY:DATE:4/19/2023 ROD PERSON: HI - (-) = ELEV.* A sketch must be provided with the level notes. T. Mizelle T. Mizelle S. Miller C. Stratton 0.00 (+) = MID at TBM or BM (TOP - BOTTOM) * 100 = DISTANCE TBM + (+) = HI (TOP + BOTTOM)/2 = MID (-) 105.38 0.00 30 0 105.38 29 0 28 0 105.38 0.00 0.00 27 0 105.38 0.00 105.38 0.00 26 0 105.38 25 0 24 0 105.38 0.00 0.00 23 0 105.38 0.00 105.38 0.00 22 0 105.38 21 0 20 0 105.38 0.00 0.00 19 0 105.38 0.00 105.38 0.00 18 0 105.38 17 0 16 0 105.38 0.00 0.00 15 0 105.38 0.00 105.38 0.00 14 0 105.38 13 0 12 0 105.38 0.00 0.00 11 0 105.38 0.00 105.38 0.00 10 0 105.38 9 0 8 0 105.38 0.00 0.00 7 0 105.38 0.00 105.38 0.00 6 0 105.38 5 0 MW-01 4 0 105.38 0.00 5.25 TMW-01 3 0 56 5.38 105.38 100.00 5.38 100.00 5.38 MW-01 2 71 23 5.24 105.38 100.14 HI ELEV. (feet)CHECK (T+B)/2 NOTES 1 0 56 5.38 105.38 100.00 POINT ANGLE (degrees) DISTANCE (feet)MID (-)(+) REDUCED LEVEL NOTES US 17 Country Store220209 BENCH MARK DESC.:MW-01 NCDEQ - SLP Source Exposure Limit Groundwater and/or soil vapor 0.5 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 100 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 20 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 100 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 50 ppm TLV-TWA ACGIH Groundwater and/or soil vapor 10 ppm TLV-TWA ACGIH Source Exposure Limit atmosphere N/A atmosphere N/A surroundings N/A Roads N/A Exposure Potential Likely Unlikely Unlikely Start Stop 11:45 12:30 12:30 12:45 12:45 18:15 18:15 18:30 18:30 18:45 Date and Time: 3/29/23 @ 12:45 ETHYL BENZENE NAPHTHALENE ppm Physical Hazards Name of Physical Hazard Exposure Level/ Potential * Gas and/or Diesel Sunny and 70s Site-Specific Job Hazard Analysis Location Where Task/Operation Performed Lancaster Store, Elizabeth City, NC Task/Operation Gauge and Sample Wells Employee Certifying this JHA Print Name: Sean O'Neil, P.E.Signature: Operational Phase Monitoring Date(s) this JHA Conducted: 03/29/2023 Weather: Mob and Travel to Site. Located, opened, gauged, photographed, and sampled monitoring wells. Spoke with property owner. Rehabbed MW-2 and MW-3. Attempted WSW access but was unable (no residence or office on site). Depart site and drove to hotel. Chemical Hazards Potential Chemicals Concentration BENZENE ppm ppm TOLUENE ppm XYLENE, ALL ISOMERS ppm METHYL TERT-BUTYL ETHER ppm Traffic Likely Biological Hazards Name of Biological Hazard Source Poison Plants (Ivy, Oak, and/or Sumac)surroundings Van #59 Mileage: On-Site Health and Safety briefing Cold Weather Operations Unlikely - 60s out Heat (ambient)Unlikely - 60s out Slips/Trips/Falls Likely Insect bites and stings surroundings Start: End: DAILY TASK Snakes surroundings PERSONNEL ONSITE Name and Company (Print)Signature Nathaniel Newman / CATLIN Equipment Used:PPE D/Interface Probe/Sampling Supplies/Aqua Troll 600/Bailers CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: MW-01 13.01 0.99 2.123 NMT 6.370 14 10.616 2 Method:Bailer Purge Start Time:15:11 Required Bails for 3 Well Volumes:27 Purge Stop Time:15:20 Required Bails for 5 Well Volumes:45 Was Well Purged Dry?No Number of Bails Removed:27 Sample Time:15:20 Groundwater Removed (gal):6.5 Equipment Used: Time Specific Cond. (µS/cm) pH (Standard Units) ORP (mV) Dissolved Oxygen (mg/L) Temperature (Co) 15:08 0.00 12.72 -75.35 8.44 23.67 15:09 1380.70 12.49 -58.85 4.79 24.00 15:10 1462.94 12.47 -55.80 3.17 24.10 15:11 1521.78 12.45 -52.51 3.26 24.26 15:12 1544.44 12.42 -50.64 3.46 24.39 15:13 924.12 12.42 -49.88 3.59 24.54 15:14 1580.59 12.42 -49.58 3.69 24.63 15:15 1497.01 12.42 -49.17 3.72 24.72 15:16 1571.88 12.42 -48.66 3.86 24.66 Laboratory:ConTest Analysis: GROUNDWATER SAMPLING FORM Water Column (ft below TOC) One Well Volume (gal) Three Well Volumes (gal) Five Well Volumes (gal) Monitoring Well Information Well Data Well ID Depth to Product (ft below TOC) Total Well Depth (ft) Nate Newman 3/29/2023 US 17 Country Store 220209 Volume of Groundwater in Well NCDEQ - SLP Aqua Troll 600 Turbidity and Additional Sampling Notes Well Diameter (inches) Depth to Water (ft below TOC) 6200B Laboratory Analysis Information Geochemical Parameters Moderate turbidity; light brown. Purging Information Information CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: MW-02 9.63 1.87 1.572 NMT 4.715 11.5 7.858 2 Method:Bailer Purge Start Time:15:55 Required Bails for 3 Well Volumes:20 Purge Stop Time:16:01 Required Bails for 5 Well Volumes:33 Was Well Purged Dry?No Number of Bails Removed:20 Sample Time:16:01 Groundwater Removed (gal):4.8 Equipment Used: Time Specific Cond. (µS/cm) pH (Standard Units) ORP (mV) Dissolved Oxygen (mg/L) Temperature (Co) 15:52 1.23 13.29 -61.06 8.06 26.21 15:53 1783.98 12.84 -219.11 5.16 24.45 15:54 1821.60 12.72 -168.67 3.55 24.30 15:55 1809.94 12.62 -138.39 3.48 24.43 15:56 1747.79 12.54 -120.53 3.45 24.56 15:57 1789.37 12.48 -109.63 3.26 24.73 15:58 1788.75 12.44 -103.25 3.25 24.80 15:59 1203.88 12.47 -100.98 3.23 24.98 16:00 3.66 12.53 -98.95 8.04 24.99 16:01 3.39 12.56 -88.70 8.33 24.98 Laboratory:ConTest Analysis: GROUNDWATER SAMPLING FORM US 17 Country Store Nate Newman 220209 3/29/2023 NCDEQ - SLP Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) Depth to Water (ft below TOC)One Well Volume (gal) Depth to Product (ft below TOC)Three Well Volumes (gal) Total Well Depth (ft)Five Well Volumes (gal) Bottom at 11.4. Moderate turbidity; brown. Laboratory Analysis Information 6200B Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua Troll 600 Turbidity and Additional Sampling Notes CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: MW-03 11.24 2.76 1.834 NMT 5.503 14 9.172 2 Method:Bailer Purge Start Time:13:50 Required Bails for 3 Well Volumes:19 Purge Stop Time:14:00 Required Bails for 5 Well Volumes:39 Was Well Purged Dry?No Number of Bails Removed:19 Sample Time:14:00 Groundwater Removed (gal):4.6 Equipment Used: Time Specific Cond. (µS/cm) pH (Standard Units) ORP (mV) Dissolved Oxygen (mg/L) Temperature (Co) 13:52 0.00 13.46 230.72 8.28 26.43 13:53 0.00 13.00 99.67 7.99 26.72 13:54 1880.51 12.52 -19.09 4.31 25.39 13:55 746.84 12.52 -47.30 4.14 25.33 13:56 1890.70 12.48 -63.01 3.64 25.42 13:57 1823.92 12.43 -71.01 3.69 25.61 13:58 1793.43 12.40 -73.65 3.61 25.77 Laboratory:ConTest Analysis: GROUNDWATER SAMPLING FORM US 17 Country Store Nate Newman 220209 3/29/2023 NCDEQ - SLP Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) Depth to Water (ft below TOC)One Well Volume (gal) Depth to Product (ft below TOC)Three Well Volumes (gal) Total Well Depth (ft)Five Well Volumes (gal) Moderate turbidity; gray. Laboratory Analysis Information 6200B Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua Troll 600 Turbidity and Additional Sampling Notes CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: MW-04 11.23 2.77 1.833 NMT 5.498 14 9.164 2 Method:Bailer Purge Start Time:14:51 Required Bails for 3 Well Volumes:23 Purge Stop Time:14:58 Required Bails for 5 Well Volumes:39 Was Well Purged Dry?No Number of Bails Removed:23 Sample Time:14:58 Groundwater Removed (gal):5.5 Equipment Used: Time Specific Cond. (µS/cm) pH (Standard Units) ORP (mV) Dissolved Oxygen (mg/L) Temperature (Co) 14:48 0.00 195.59 8.42 25.71 14:49 532.51 12.32 -141.21 4.44 25.59 14:50 501.06 12.26 -137.78 2.95 25.69 14:51 505.01 12.22 -135.04 2.91 25.80 14:52 510.54 12.20 -131.86 2.99 25.90 14:53 518.66 12.18 -129.74 3.11 25.99 14:54 514.85 12.17 -124.99 2.87 26.04 Laboratory:ConTest Analysis:6200B Depth to Product (ft below TOC)Three Well Volumes (gal) Total Well Depth (ft)Five Well Volumes (gal) Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua Troll 600 Turbidity and Additional Sampling Notes High turbidity; gray/black. Laboratory Analysis Information Depth to Water (ft below TOC)One Well Volume (gal) GROUNDWATER SAMPLING FORM US 17 Country Store Nate Newman 220209 3/29/2023 NCDEQ - SLP Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: TMW-01 27.02 2.98 4.410 NMT 13.229 30 22.048 2 Method:Bailer Purge Start Time:15:29 Required Bails for 3 Well Volumes:56 Purge Stop Time:15:47 Required Bails for 5 Well Volumes:92 Was Well Purged Dry?No Number of Bails Removed:56 Sample Time:15:47 Groundwater Removed (gal):13.4 Equipment Used: Time Specific Cond. (µS/cm) pH (Standard Units) ORP (mV) Dissolved Oxygen (mg/L) Temperature (Co) 15:26 1.45 12.63 -17.70 8.37 24.79 15:27 2789.94 13.76 -194.53 7.23 26.40 15:28 2729.80 13.76 -194.00 4.81 26.78 15:29 2840.40 13.78 -188.84 4.72 27.16 15:30 3022.22 13.79 -186.47 4.52 27.50 15:31 3028.73 13.80 -184.81 4.44 27.74 15:32 2894.79 13.80 -184.71 4.22 27.96 15:33 2654.88 13.78 -183.95 4.08 28.15 15:34 2372.01 13.76 -182.64 4.04 28.28 15:35 2054.65 13.74 -180.65 4.03 28.38 15:36 1810.31 13.71 -177.39 3.92 28.44 15:37 1474.74 13.65 -173.28 3.98 28.49 15:38 1226.10 13.61 -169.46 3.88 28.53 15:39 1009.26 13.55 -164.00 3.95 28.55 15:40 846.84 13.48 -157.77 3.99 28.56 15:41 692.61 13.42 -152.28 3.86 28.56 15:42 666.23 13.43 -149.32 3.77 28.64 15:43 613.48 13.39 -143.58 3.75 28.61 Laboratory:ConTest Analysis:6200B Depth to Product (ft below TOC)Three Well Volumes (gal) Total Well Depth (ft)Five Well Volumes (gal) Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua Troll 600 Turbidity and Additional Sampling Notes Clear Laboratory Analysis Information Depth to Water (ft below TOC)One Well Volume (gal) GROUNDWATER SAMPLING FORM US 17 Country Store Nate Newman 220209 3/29/2023 NCDEQ - SLP Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 APPENDIX D WELL LOG AND WELL CONSTRUCTION RECORD 30.0 5.0 8.0 13.0 18.0 22.4 27.4 5 14 7 9 5 8 2 7 7 1 3 2 4 13 7 5 6 5 3 11 5 2 6 4 30.0 4" Sch. 40 PVC25.0 20.0 30.0 0.0 20.0 22.0 30.02" Sch. 40 PVC2" Slot .010Sch. 40 PVCM M Sat. Sat. Sat. Sat. 5.0 7.5 5.0 7.5 29.4 FILL (CH) - Gray, Highly Plastic CLAY. Strong HCO (SP) - Gray, F. SAND. Strong HCO from 8.0-10.0' BLS Mod. HCO from 13.0-15.0' BLS BORING TERMINATED AT ELEVATION 70.1 ft in F. SAND 95.1 92.6 95.1 92.6 70.7 193.6 145.4 13.7 3.6 141.9 42.8 DRILL MACHINE:Diedrich D-50 METHOD:MUD ROTRAY/HSA COUNTY:PASQUOTANK 2795238 924304 T.O.C. ELEV.: TOTAL DEPTH: WELL DEPTH: NC SHEET 3.4 NM DEPTH 1 100.14 30.0 30.0 0 HOUR DTW: 24 HOUR DTW:END DATE:3/22/23 OF1 BORING LOCATION:~3' NE of MW-04 BLOW COUNT 0.5ft START DATE:3/21/23 0.5ft WELL ID: STATE: TMW-01NORTHING: LOGGED BY: DRILLER: CREW: 0.5ft0.5ft EASTING: PROJECT NO.:220209 SYSTEM:NCSP NAD 83 (USft) US 17 COUNTRY STOREPROJECT:T. MIZELLE D. T. Chalmers, JR C. STRATTON LOCATION:ELIZABETH CITY ENVIRONMENTAL, CIVILGEOTECHNICAL Wilmington, Raleigh, Washington,Charleston CATLIN BORING LOG 220209_NCDEQ SLP US 17 COUNTRY STORE.GPJ CATLIN.GDT 4/4/23Concrete Bentonite Pellets #2 Medium Sand 0.0 WELL LOG WELL DETAIL SOIL AND ROCK DESCRIPTIONLAB.DEPTH MOIS 0.0 LAND SURFACE LOG ELEVATION 100.1 OVA (ppm) 220209 03/22/23 MUD ROTRAY/HSA 4146A 3.41 TMW-01 -76.3025 D. T. Chalmers, JR 36.25986 PASQUOTANK 1 X 4/4/2023 10.25 Surface Pour CATLIN Engineers and Scientists X 2 Slot .010 1383 US HWY 17 SOUTH, ELIZABETH CITY, NC 27909 Bent. Pellets22 PVC 25 20N/A 22 30 Torpedo Sand 30.0 X 20 25 30 PVC 2 Sch. 40 0 0 4 Sch. 40 Sch. 40 PVC Well ID#: Facility/Owner Name Facility ID# (if applicable) Physical Address, City, and Zip County Parcel Identification No. (PIN) (if well field, one lat/long is sufficient) N 6. Is (are) the well(s): Yes TemporaryPermanent or or No7. Is this a repair to an existing well: 8. Number of wells constructed: For multiple injection or non-water supply wells ONLY with the same construction, youcan submit one form. 9. Total well depth below land surface: For multiple wells list all depths in different (example- 3@200' and 2@100') W (ft.)10. Static water level below top of casing: If water level is above casing, use "+" 11. Borehole diameter: MATERIAL FROM Residential Water Supply (shared) Adapted from Form GW-1 ft. ft. ft.ft. ft.ft. ft.ft. ft.ft. ft. ft. (ft.) (in.) ft. ft.ft. ft. ft. ft.in. in. ft. ft. ft.ft. ft. ft. 13b. Disinfection type: 22. Certification: Revised 2-22-2016 ft.NDEQ-US 17 COUNTRY STORE TO DIAMETER THICKNESS MATERIAL FROM17. SCREEN DIAMETER SLOT SIZE MATERIALTHICKNESS FROM TO MATERIAL ft.ft. ft. ft. FROM TO 18. GROUT MATERIAL 19. SAND/GRAVEL PACK (if applicable) 1. Well Contractor Information: This form can be used for single or multiple wells Well Contractor Name NC Well Contractor Certification Number Company Name 2. Well Construction Permit #:List all applicable well permits (i.e. County, State, Variance, Injection, etc.) 3. Well Use (check well use): Water Supply Well: Agricultural Non-Water Supply Well: Monitoring Geothermal (Heating/Cooling Supply) Industrial/Commercial Irrigation 15. INNER CASING OR TUBING (geothermal closed-loop) Municipal/Public Residential Water Supply (single) ft. ft.ft. ft.ft. ft. ft.ft. ft. TO EMPLACEMENT METHOD & AMOUNT in. in. in. EMPLACEMENT METHOD Recovery Injection Well: You may use the back of this page to provide additional well site details or well construction details. You may also attach additional pages if necessary. By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with15A 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. If this is a repair, fill out known well construction information and explain the nature ofthe repair under #21 remarks section or on the back of this form. 12. Well construction method: (i.e. auger, rotary, cable, direct push, etc.) 13a. Yield (gpm) FOR WATER SUPPLY WELLS ONLY: Method of test: Amount: For Internal Use ONLY: 14. WATER ZONES FROM TO DESCRIPTION FROM TO 24c. For Water Sypply & Injection Wells:Also submit one copy of this form within 30 days of completion of wellconstruction to the county health department of the county where constructed. DIAMETER THICKNESS FROM TO DESCRIPTION (color, hardness, soil/rock type, grain size, etc.) 21. REMARKS 20. DRILLING LOG (attach additional sheets if necessary) 5b. Latitude and Longitude in degrees/minutes/seconds or decimal degrees: Signature of Certified Well Contractor Date 24a. For All Wells: Submit this form within 30 days of completion of wellconstruction to the following: SUBMITTAL INSTRUCTIONS Division of Water Resources, Information Processing Unit,1617 Mail Service Center, Raleigh, NC 27699-1617 Division of Water Resources, Underground Injection Control Program,1636 Mail Service Center, Raleigh, NC 27699-1636 16. OUTER CASING (for multi-cased wells) OR LINER (if applicable) North Carolina Department of Environment and Natural Resources - Division of Water Resources 24b. For Injection Wells ONLY: In addition to sending the form to theaddress in 24a above, also submit a copy of this form within 30 days ofcompletion of well construction to the following: WELL CONSTRUCTION RECORD 23. Site diagram or additional well details: Aquifer Recharge Groundwater Remediation Stormwater Drainage Aquifer Storage and Recovery Aquifer Test Experimental Technology Geothermal (Closed Loop) Geothermal (Heating/Cooling Return) Salinity Barrier Subsidence Control Tracer Other (explain under #21 Remarks) 4. Date Well(s) Completed: 5a. Well Location:SEE ATTAC H E D Surface Pour Surface Pour020 N/A 00-0-0000001670 NCDEQ; 38813_US 17 Country Store CATLIN Engineers and Scientists CATLIN Project No. 220209 April 2023 APPENDIX E LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 April 5, 2023 Ben Ashba CATLIN Engineers & Scientists 220 Old Dairy Road Wilmington, NC 28405 Project Location: Elizabeth City, NC Client Job Number: Project Number: 220209 Laboratory Work Order Number: 23C3558 Enclosed are results of analyses for samples as received by the laboratory on March 31, 2023. If you have any questions concerning this report, please feel free to contact me. Sincerely, Kaitlyn A. Feliciano Project Manager Page 1 of 30 Table of Contents Table of Contents Sample Summary 3 Hits Only Report 4 Case Narrative 7 Sample Results 8 23C3558-01 8 23C3558-02 10 23C3558-03 12 23C3558-04 14 23C3558-05 16 23C3558-06 18 Sample Preparation Information 20 QC Data 21 Volatile Organic Compounds by GC/MS 21 B335888 21 Flag/Qualifier Summary 25 Certifications 26 Chain of Custody/Sample Receipt 28 Page 2 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 ANALYTICAL SUMMARY 4/5/2023 CATLIN Engineers & Scientists 220 Old Dairy Road Wilmington, NC 28405 ATTN: Ben Ashba 220209 23C3558 The results of analyses performed on the following samples submitted to the CON-TEST Analytical Laboratory are found in this report. PROJECT LOCATION: PURCHASE ORDER NUMBER: PROJECT NUMBER: REPORT DATE: WORK ORDER NUMBER: FIELD SAMPLE #LAB ID:MATRIX TESTSAMPLE DESCRIPTION SUB LAB Elizabeth City, NC 230330-3 Trip Blank 23C3558-01 Ground Water SM21-23 6200B MW-01 23C3558-02 Ground Water SM21-23 6200B MW-02 23C3558-03 Ground Water SM21-23 6200B MW-03 23C3558-04 Ground Water SM21-23 6200B MW-04 23C3558-05 Ground Water SM21-23 6200B TMW-01 23C3558-06 Ground Water SM21-23 6200B [TOC_1]Sample Summary[TOC] Page 3 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 [TOC_1]Hits Only Report[TOC]EXECUTIVE SUMMARY Client ID:Lab ID:23C3558-01Trip Blank No Results Detected Con-Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary section of this report. Users must review this report in its entirety to determine data usability and assessment. Page 4 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 EXECUTIVE SUMMARY Client ID:Lab ID: Analyte Results/Qual RL Units Method 23C3558-02MW-01 DL 1,2,4-Trimethylbenzene 0.38 0.50 g/L SM21-23 6200BJ0.20 Benzene 4.1 0.50 g/L SM21-23 6200B0.18 Ethylbenzene 3.4 0.50 g/L SM21-23 6200B0.22 Isopropylbenzene (Cumene)0.81 0.50 g/L SM21-23 6200B0.15 Methyl tert-Butyl Ether (MTBE)4.9 0.50 g/L SM21-23 6200B0.17 n-Butylbenzene 0.25 0.50 g/L SM21-23 6200BJ0.15 n-Propylbenzene 1.0 0.50 g/L SM21-23 6200B0.12 sec-Butylbenzene 0.87 0.50 g/L SM21-23 6200B0.13 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23C3558-03MW-02 DL Isopropylbenzene (Cumene)0.72 1.0 g/L SM21-23 6200BJ0.30 n-Butylbenzene 0.82 1.0 g/L SM21-23 6200BJ0.30 n-Propylbenzene 0.98 1.0 g/L SM21-23 6200BJ0.25 sec-Butylbenzene 1.2 1.0 g/L SM21-23 6200B0.25 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23C3558-04MW-03 DL 1,3,5-Trimethylbenzene 0.64 2.0 g/L SM21-23 6200BJ0.60 Benzene 2.1 2.0 g/L SM21-23 6200B0.74 Ethylbenzene 2.4 2.0 g/L SM21-23 6200B0.88 Isopropylbenzene (Cumene)1.9 2.0 g/L SM21-23 6200BJ0.60 Methyl tert-Butyl Ether (MTBE)5.1 2.0 g/L SM21-23 6200B0.68 n-Butylbenzene 0.60 2.0 g/L SM21-23 6200BJ0.60 n-Propylbenzene 3.4 2.0 g/L SM21-23 6200B0.50 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23C3558-05MW-04 DL 1,2,4-Trimethylbenzene 35 5.0 g/L SM21-23 6200B2.0 2-Butanone (MEK)24 50 g/L SM21-23 6200BJ17 Benzene 780 5.0 g/L SM21-23 6200B1.8 Diisopropyl Ether (DIPE)13 5.0 g/L SM21-23 6200B2.0 Ethylbenzene 350 5.0 g/L SM21-23 6200B2.2 Isopropylbenzene (Cumene)83 5.0 g/L SM21-23 6200B1.5 m+p Xylene 30 10 g/L SM21-23 6200B4.9 Methyl tert-Butyl Ether (MTBE)430 5.0 g/L SM21-23 6200B1.7 Naphthalene 79 5.0 g/L SM21-23 6200BL-04 3.8 n-Butylbenzene 24 5.0 g/L SM21-23 6200B1.5 n-Propylbenzene 220 5.0 g/L SM21-23 6200B1.2 o-Xylene 2.5 5.0 g/L SM21-23 6200BJ2.4 sec-Butylbenzene 17 5.0 g/L SM21-23 6200B1.3 tert-Butylbenzene 2.3 5.0 g/L SM21-23 6200BJ1.4 Toluene 16 5.0 g/L SM21-23 6200B2.2 Page 5 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23C3558-06TMW-01 DL 1,2,4-Trimethylbenzene 13 0.50 g/L SM21-23 6200B0.20 1,3,5-Trimethylbenzene 1.1 0.50 g/L SM21-23 6200B0.15 Acetone 12 50 g/L SM21-23 6200BJ2.0 Benzene 0.76 0.50 g/L SM21-23 6200B0.18 Ethylbenzene 3.8 0.50 g/L SM21-23 6200B0.22 Isopropylbenzene (Cumene)1.1 0.50 g/L SM21-23 6200B0.15 m+p Xylene 5.7 1.0 g/L SM21-23 6200B0.49 Methyl tert-Butyl Ether (MTBE)3.9 0.50 g/L SM21-23 6200B0.17 Naphthalene 1.4 0.50 g/L SM21-23 6200BL-04 0.38 n-Butylbenzene 1.4 0.50 g/L SM21-23 6200B0.15 n-Propylbenzene 2.5 0.50 g/L SM21-23 6200B0.12 o-Xylene 2.9 0.50 g/L SM21-23 6200B0.24 sec-Butylbenzene 0.55 0.50 g/L SM21-23 6200B0.13 Toluene 6.4 0.50 g/L SM21-23 6200B0.22 Con-Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary section of this report. Users must review this report in its entirety to determine data usability and assessment. Page 6 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 CASE NARRATIVE SUMMARY All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report. For method 6200B elevated reporting limits for samples 23C3558-03+04 due to matrix interference. For method 6200B elevated reporting limits for sample 23C3558-05 due to high concentrations of target compounds. [TOC_1]Case Narrative[TOC] SM21-23 6200B Qualifications: Laboratory fortified blank/laboratory control sample recovery and duplicate recovery are outside of control limits. Reported value for this compound is likely to be biased on the low side. Analyte & Samples(s) Qualified: L-04 4-Methyl-2-pentanone (MIBK) 23C3558-01[Trip Blank], 23C3558-02[MW-01], 23C3558-03[MW-02], 23C3558-04[MW-03], 23C3558-05[MW-04], 23C3558-06[TMW-01], B335888-BLK1, B335888-BS1, B335888-BSD1, S085445-CCV1 Naphthalene 23C3558-01[Trip Blank], 23C3558-02[MW-01], 23C3558-03[MW-02], 23C3558-04[MW-03], 23C3558-05[MW-04], 23C3558-06[TMW-01], B335888-BLK1, B335888-BS1, B335888-BSD1, S085445-CCV1 Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but the other is within limits. RPD between the two LFB/LCS results is within method specified criteria. Analyte & Samples(s) Qualified: L-07 Bromomethane B335888-BSD1 Elevated reporting limit due to high concentration of target compounds. Analyte & Samples(s) Qualified: RL-11 23C3558-05[MW-04] Elevated reporting limit due to matrix interference. Analyte & Samples(s) Qualified: RL-12 23C3558-03[MW-02], 23C3558-04[MW-03] The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing. I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the best of my knowledge and belief, accurate and complete. Meghan E. Kelley Reporting Specialist Page 7 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-01 Field Sample #: Trip Blank Sample Matrix: Ground Water Sampled: 3/29/2023 00:00 [TOC_2]23C3558-01[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 4/3/23 22:53 MFFg/L2.0 4/3/23SM21-23 6200B1Acetone ND 0.50 4/3/23 22:53 MFFg/L0.18 4/3/23SM21-23 6200B1Benzene ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B1Bromobenzene ND 0.50 4/3/23 22:53 MFFg/L0.28 4/3/23SM21-23 6200B1Bromochloromethane ND 0.50 4/3/23 22:53 MFFg/L0.16 4/3/23SM21-23 6200B1Bromodichloromethane ND 0.50 4/3/23 22:53 MFFg/L0.41 4/3/23SM21-23 6200B1Bromoform ND 2.0 4/3/23 22:53 MFFg/L1.3 4/3/23SM21-23 6200B1Bromomethane ND 5.0 4/3/23 22:53 MFFg/L1.7 4/3/23SM21-23 6200B12-Butanone (MEK) ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B1n-Butylbenzene ND 0.50 4/3/23 22:53 MFFg/L0.13 4/3/23SM21-23 6200B1sec-Butylbenzene ND 0.50 4/3/23 22:53 MFFg/L0.14 4/3/23SM21-23 6200B1tert-Butylbenzene ND 0.50 4/3/23 22:53 MFFg/L0.16 4/3/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 4/3/23 22:53 MFFg/L0.12 4/3/23SM21-23 6200B1Chlorobenzene ND 50 4/3/23 22:53 MFFg/L20 4/3/23SM21-23 6200B1Ethanol ND 0.50 4/3/23 22:53 MFFg/L0.20 4/3/23SM21-23 6200B1Chlorodibromomethane ND 0.50 4/3/23 22:53 MFFg/L0.34 4/3/23SM21-23 6200B1Chloroethane ND 0.50 4/3/23 22:53 MFFg/L0.14 4/3/23SM21-23 6200B1Chloroform ND 0.60 4/3/23 22:53 MFFg/L0.50 4/3/23SM21-23 6200B1Chloromethane ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B12-Chlorotoluene ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B14-Chlorotoluene ND 0.50 4/3/23 22:53 MFFg/L0.16 4/3/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 4/3/23 22:53 MFFg/L0.13 4/3/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 4/3/23 22:53 MFFg/L0.14 4/3/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 4/3/23 22:53 MFFg/L0.13 4/3/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 4/3/23 22:53 MFFg/L0.16 4/3/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12) ND 0.50 4/3/23 22:53 MFFg/L0.14 4/3/23SM21-23 6200B11,1-Dichloroethane ND 0.50 4/3/23 22:53 MFFg/L0.30 4/3/23SM21-23 6200B11,2-Dichloroethane ND 0.50 4/3/23 22:53 MFFg/L0.14 4/3/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 4/3/23 22:53 MFFg/L0.14 4/3/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 4/3/23 22:53 MFFg/L0.17 4/3/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 4/3/23 22:53 MFFg/L0.19 4/3/23SM21-23 6200B11,2-Dichloropropane ND 0.50 4/3/23 22:53 MFFg/L0.12 4/3/23SM21-23 6200B11,3-Dichloropropane ND 0.50 4/3/23 22:53 MFFg/L0.35 4/3/23SM21-23 6200B12,2-Dichloropropane ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B11,1-Dichloropropene ND 0.50 4/3/23 22:53 MFFg/L0.16 4/3/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 4/3/23 22:53 MFFg/L0.14 4/3/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 4/3/23 22:53 MFFg/L0.20 4/3/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 4/3/23 22:53 MFFg/L0.22 4/3/23SM21-23 6200B1Ethylbenzene ND 5.0 4/3/23 22:53 MFFg/L1.2 4/3/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 4/3/23 22:53 MFFg/L0.13 4/3/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 4/3/23 22:53 MFFg/L0.17 4/3/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 4/3/23 22:53 MFFg/L0.18 4/3/23SM21-23 6200B1Methylene Chloride ND 5.0 4/3/23 22:53 MFFg/L1.3 4/3/23SM21-23 6200B1L-044-Methyl-2-pentanone (MIBK) [TOC_1]Sample Results[TOC] Page 8 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-01 Field Sample #: Trip Blank Sample Matrix: Ground Water Sampled: 3/29/2023 00:00 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 4/3/23 22:53 MFFg/L0.38 4/3/23SM21-23 6200B1L-04Naphthalene ND 0.50 4/3/23 22:53 MFFg/L0.12 4/3/23SM21-23 6200B1n-Propylbenzene ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B1Styrene ND 0.50 4/3/23 22:53 MFFg/L0.14 4/3/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 4/3/23 22:53 MFFg/L0.17 4/3/23SM21-23 6200B1Tetrachloroethylene ND 0.50 4/3/23 22:53 MFFg/L0.22 4/3/23SM21-23 6200B1Toluene ND 1.0 4/3/23 22:53 MFFg/L0.34 4/3/23SM21-23 6200B11,2,3-Trichlorobenzene ND 1.0 4/3/23 22:53 MFFg/L0.30 4/3/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 4/3/23 22:53 MFFg/L0.19 4/3/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 4/3/23 22:53 MFFg/L0.17 4/3/23SM21-23 6200B1Trichloroethylene ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B1Trichlorofluoromethane (Freon 11) ND 0.50 4/3/23 22:53 MFFg/L0.28 4/3/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 4/3/23 22:53 MFFg/L0.20 4/3/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 4/3/23 22:53 MFFg/L0.15 4/3/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 4/3/23 22:53 MFFg/L1.7 4/3/23SM21-23 6200B1Vinyl Acetate ND 0.50 4/3/23 22:53 MFFg/L0.24 4/3/23SM21-23 6200B1Vinyl Chloride ND 1.0 4/3/23 22:53 MFFg/L0.49 4/3/23SM21-23 6200B1m+p Xylene ND 0.50 4/3/23 22:53 MFFg/L0.24 4/3/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 106 4/3/23 22:5370-130 Toluene-d8 99.0 4/3/23 22:5370-130 4-Bromofluorobenzene 88.9 4/3/23 22:5370-130 Page 9 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-02 Field Sample #: MW-01 Sample Matrix: Ground Water Sampled: 3/29/2023 15:20 [TOC_2]23C3558-02[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 4/4/23 5:42 MFFg/L2.0 4/3/23SM21-23 6200B1Acetone 4.1 0.50 4/4/23 5:42 MFFg/L0.18 4/3/23SM21-23 6200B1Benzene ND 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B1Bromobenzene ND 0.50 4/4/23 5:42 MFFg/L0.28 4/3/23SM21-23 6200B1Bromochloromethane ND 0.50 4/4/23 5:42 MFFg/L0.16 4/3/23SM21-23 6200B1Bromodichloromethane ND 0.50 4/4/23 5:42 MFFg/L0.41 4/3/23SM21-23 6200B1Bromoform ND 2.0 4/4/23 5:42 MFFg/L1.3 4/3/23SM21-23 6200B1Bromomethane ND 5.0 4/4/23 5:42 MFFg/L1.7 4/3/23SM21-23 6200B12-Butanone (MEK) 0.25 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B1Jn-Butylbenzene 0.87 0.50 4/4/23 5:42 MFFg/L0.13 4/3/23SM21-23 6200B1sec-Butylbenzene ND 0.50 4/4/23 5:42 MFFg/L0.14 4/3/23SM21-23 6200B1tert-Butylbenzene ND 0.50 4/4/23 5:42 MFFg/L0.16 4/3/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 4/4/23 5:42 MFFg/L0.12 4/3/23SM21-23 6200B1Chlorobenzene ND 50 4/4/23 5:42 MFFg/L20 4/3/23SM21-23 6200B1Ethanol ND 0.50 4/4/23 5:42 MFFg/L0.20 4/3/23SM21-23 6200B1Chlorodibromomethane ND 0.50 4/4/23 5:42 MFFg/L0.34 4/3/23SM21-23 6200B1Chloroethane ND 0.50 4/4/23 5:42 MFFg/L0.14 4/3/23SM21-23 6200B1Chloroform ND 0.60 4/4/23 5:42 MFFg/L0.50 4/3/23SM21-23 6200B1Chloromethane ND 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B12-Chlorotoluene ND 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B14-Chlorotoluene ND 0.50 4/4/23 5:42 MFFg/L0.16 4/3/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 4/4/23 5:42 MFFg/L0.13 4/3/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 4/4/23 5:42 MFFg/L0.14 4/3/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 4/4/23 5:42 MFFg/L0.13 4/3/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 4/4/23 5:42 MFFg/L0.16 4/3/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12) ND 0.50 4/4/23 5:42 MFFg/L0.14 4/3/23SM21-23 6200B11,1-Dichloroethane ND 0.50 4/4/23 5:42 MFFg/L0.30 4/3/23SM21-23 6200B11,2-Dichloroethane ND 0.50 4/4/23 5:42 MFFg/L0.14 4/3/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 4/4/23 5:42 MFFg/L0.14 4/3/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 4/4/23 5:42 MFFg/L0.17 4/3/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 4/4/23 5:42 MFFg/L0.19 4/3/23SM21-23 6200B11,2-Dichloropropane ND 0.50 4/4/23 5:42 MFFg/L0.12 4/3/23SM21-23 6200B11,3-Dichloropropane ND 0.50 4/4/23 5:42 MFFg/L0.35 4/3/23SM21-23 6200B12,2-Dichloropropane ND 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B11,1-Dichloropropene ND 0.50 4/4/23 5:42 MFFg/L0.16 4/3/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 4/4/23 5:42 MFFg/L0.14 4/3/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 4/4/23 5:42 MFFg/L0.20 4/3/23SM21-23 6200B1Diisopropyl Ether (DIPE) 3.4 0.50 4/4/23 5:42 MFFg/L0.22 4/3/23SM21-23 6200B1Ethylbenzene ND 5.0 4/4/23 5:42 MFFg/L1.2 4/3/23SM21-23 6200B12-Hexanone (MBK) 0.81 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 4/4/23 5:42 MFFg/L0.13 4/3/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) 4.9 0.50 4/4/23 5:42 MFFg/L0.17 4/3/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 4/4/23 5:42 MFFg/L0.18 4/3/23SM21-23 6200B1Methylene Chloride ND 5.0 4/4/23 5:42 MFFg/L1.3 4/3/23SM21-23 6200B1L-044-Methyl-2-pentanone (MIBK) Page 10 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-02 Field Sample #: MW-01 Sample Matrix: Ground Water Sampled: 3/29/2023 15:20 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 4/4/23 5:42 MFFg/L0.38 4/3/23SM21-23 6200B1L-04Naphthalene 1.0 0.50 4/4/23 5:42 MFFg/L0.12 4/3/23SM21-23 6200B1n-Propylbenzene ND 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B1Styrene ND 0.50 4/4/23 5:42 MFFg/L0.14 4/3/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 4/4/23 5:42 MFFg/L0.17 4/3/23SM21-23 6200B1Tetrachloroethylene ND 0.50 4/4/23 5:42 MFFg/L0.22 4/3/23SM21-23 6200B1Toluene ND 1.0 4/4/23 5:42 MFFg/L0.34 4/3/23SM21-23 6200B11,2,3-Trichlorobenzene ND 1.0 4/4/23 5:42 MFFg/L0.30 4/3/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 4/4/23 5:42 MFFg/L0.19 4/3/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 4/4/23 5:42 MFFg/L0.17 4/3/23SM21-23 6200B1Trichloroethylene ND 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B1Trichlorofluoromethane (Freon 11) ND 0.50 4/4/23 5:42 MFFg/L0.28 4/3/23SM21-23 6200B11,2,3-Trichloropropane 0.38 0.50 4/4/23 5:42 MFFg/L0.20 4/3/23SM21-23 6200B1J1,2,4-Trimethylbenzene ND 0.50 4/4/23 5:42 MFFg/L0.15 4/3/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 4/4/23 5:42 MFFg/L1.7 4/3/23SM21-23 6200B1Vinyl Acetate ND 0.50 4/4/23 5:42 MFFg/L0.24 4/3/23SM21-23 6200B1Vinyl Chloride ND 1.0 4/4/23 5:42 MFFg/L0.49 4/3/23SM21-23 6200B1m+p Xylene ND 0.50 4/4/23 5:42 MFFg/L0.24 4/3/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 107 4/4/23 5:4270-130 Toluene-d8 98.0 4/4/23 5:4270-130 4-Bromofluorobenzene 89.4 4/4/23 5:4270-130 Page 11 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-03 Field Sample #: MW-02 Sample Matrix: Ground Water Sampled: 3/29/2023 16:01 [TOC_2]23C3558-03[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-12 Volatile Organic Compounds by GC/MS ND 100 4/4/23 6:09 MFFg/L4.0 4/3/23SM21-23 6200B2Acetone ND 1.0 4/4/23 6:09 MFFg/L0.37 4/3/23SM21-23 6200B2Benzene ND 1.0 4/4/23 6:09 MFFg/L0.30 4/3/23SM21-23 6200B2Bromobenzene ND 1.0 4/4/23 6:09 MFFg/L0.57 4/3/23SM21-23 6200B2Bromochloromethane ND 1.0 4/4/23 6:09 MFFg/L0.32 4/3/23SM21-23 6200B2Bromodichloromethane ND 1.0 4/4/23 6:09 MFFg/L0.82 4/3/23SM21-23 6200B2Bromoform ND 4.0 4/4/23 6:09 MFFg/L2.6 4/3/23SM21-23 6200B2Bromomethane ND 10 4/4/23 6:09 MFFg/L3.4 4/3/23SM21-23 6200B22-Butanone (MEK) 0.82 1.0 4/4/23 6:09 MFFg/L0.30 4/3/23SM21-23 6200B2Jn-Butylbenzene 1.2 1.0 4/4/23 6:09 MFFg/L0.25 4/3/23SM21-23 6200B2sec-Butylbenzene ND 1.0 4/4/23 6:09 MFFg/L0.28 4/3/23SM21-23 6200B2tert-Butylbenzene ND 1.0 4/4/23 6:09 MFFg/L0.33 4/3/23SM21-23 6200B2Carbon Tetrachloride ND 1.0 4/4/23 6:09 MFFg/L0.24 4/3/23SM21-23 6200B2Chlorobenzene ND 100 4/4/23 6:09 MFFg/L41 4/3/23SM21-23 6200B2Ethanol ND 1.0 4/4/23 6:09 MFFg/L0.40 4/3/23SM21-23 6200B2Chlorodibromomethane ND 1.0 4/4/23 6:09 MFFg/L0.68 4/3/23SM21-23 6200B2Chloroethane ND 1.0 4/4/23 6:09 MFFg/L0.28 4/3/23SM21-23 6200B2Chloroform ND 1.2 4/4/23 6:09 MFFg/L1.0 4/3/23SM21-23 6200B2Chloromethane ND 1.0 4/4/23 6:09 MFFg/L0.31 4/3/23SM21-23 6200B22-Chlorotoluene ND 1.0 4/4/23 6:09 MFFg/L0.31 4/3/23SM21-23 6200B24-Chlorotoluene ND 1.0 4/4/23 6:09 MFFg/L0.32 4/3/23SM21-23 6200B21,2-Dibromoethane (EDB) ND 1.0 4/4/23 6:09 MFFg/L0.26 4/3/23SM21-23 6200B21,2-Dichlorobenzene ND 1.0 4/4/23 6:09 MFFg/L0.27 4/3/23SM21-23 6200B21,3-Dichlorobenzene ND 1.0 4/4/23 6:09 MFFg/L0.26 4/3/23SM21-23 6200B21,4-Dichlorobenzene ND 1.0 4/4/23 6:09 MFFg/L0.32 4/3/23SM21-23 6200B2Dichlorodifluoromethane (Freon 12) ND 1.0 4/4/23 6:09 MFFg/L0.27 4/3/23SM21-23 6200B21,1-Dichloroethane ND 1.0 4/4/23 6:09 MFFg/L0.61 4/3/23SM21-23 6200B21,2-Dichloroethane ND 1.0 4/4/23 6:09 MFFg/L0.28 4/3/23SM21-23 6200B21,1-Dichloroethylene ND 1.0 4/4/23 6:09 MFFg/L0.28 4/3/23SM21-23 6200B2cis-1,2-Dichloroethylene ND 1.0 4/4/23 6:09 MFFg/L0.34 4/3/23SM21-23 6200B2trans-1,2-Dichloroethylene ND 1.0 4/4/23 6:09 MFFg/L0.39 4/3/23SM21-23 6200B21,2-Dichloropropane ND 1.0 4/4/23 6:09 MFFg/L0.23 4/3/23SM21-23 6200B21,3-Dichloropropane ND 1.0 4/4/23 6:09 MFFg/L0.70 4/3/23SM21-23 6200B22,2-Dichloropropane ND 1.0 4/4/23 6:09 MFFg/L0.30 4/3/23SM21-23 6200B21,1-Dichloropropene ND 1.0 4/4/23 6:09 MFFg/L0.33 4/3/23SM21-23 6200B2cis-1,3-Dichloropropene ND 1.0 4/4/23 6:09 MFFg/L0.28 4/3/23SM21-23 6200B2trans-1,3-Dichloropropene ND 1.0 4/4/23 6:09 MFFg/L0.40 4/3/23SM21-23 6200B2Diisopropyl Ether (DIPE) ND 1.0 4/4/23 6:09 MFFg/L0.44 4/3/23SM21-23 6200B2Ethylbenzene ND 10 4/4/23 6:09 MFFg/L2.4 4/3/23SM21-23 6200B22-Hexanone (MBK) 0.72 1.0 4/4/23 6:09 MFFg/L0.30 4/3/23SM21-23 6200B2JIsopropylbenzene (Cumene) ND 1.0 4/4/23 6:09 MFFg/L0.25 4/3/23SM21-23 6200B2p-Isopropyltoluene (p-Cymene) ND 1.0 4/4/23 6:09 MFFg/L0.34 4/3/23SM21-23 6200B2Methyl tert-Butyl Ether (MTBE) ND 10 4/4/23 6:09 MFFg/L0.35 4/3/23SM21-23 6200B2Methylene Chloride ND 10 4/4/23 6:09 MFFg/L2.6 4/3/23SM21-23 6200B2L-044-Methyl-2-pentanone (MIBK) Page 12 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-03 Field Sample #: MW-02 Sample Matrix: Ground Water Sampled: 3/29/2023 16:01 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-12 Volatile Organic Compounds by GC/MS ND 1.0 4/4/23 6:09 MFFg/L0.76 4/3/23SM21-23 6200B2L-04Naphthalene 0.98 1.0 4/4/23 6:09 MFFg/L0.25 4/3/23SM21-23 6200B2Jn-Propylbenzene ND 1.0 4/4/23 6:09 MFFg/L0.30 4/3/23SM21-23 6200B2Styrene ND 1.0 4/4/23 6:09 MFFg/L0.27 4/3/23SM21-23 6200B21,1,2,2-Tetrachloroethane ND 1.0 4/4/23 6:09 MFFg/L0.34 4/3/23SM21-23 6200B2Tetrachloroethylene ND 1.0 4/4/23 6:09 MFFg/L0.45 4/3/23SM21-23 6200B2Toluene ND 2.0 4/4/23 6:09 MFFg/L0.68 4/3/23SM21-23 6200B21,2,3-Trichlorobenzene ND 2.0 4/4/23 6:09 MFFg/L0.60 4/3/23SM21-23 6200B21,2,4-Trichlorobenzene ND 1.0 4/4/23 6:09 MFFg/L0.30 4/3/23SM21-23 6200B21,1,1-Trichloroethane ND 1.0 4/4/23 6:09 MFFg/L0.38 4/3/23SM21-23 6200B21,1,2-Trichloroethane ND 1.0 4/4/23 6:09 MFFg/L0.35 4/3/23SM21-23 6200B2Trichloroethylene ND 1.0 4/4/23 6:09 MFFg/L0.31 4/3/23SM21-23 6200B2Trichlorofluoromethane (Freon 11) ND 1.0 4/4/23 6:09 MFFg/L0.55 4/3/23SM21-23 6200B21,2,3-Trichloropropane ND 1.0 4/4/23 6:09 MFFg/L0.40 4/3/23SM21-23 6200B21,2,4-Trimethylbenzene ND 1.0 4/4/23 6:09 MFFg/L0.30 4/3/23SM21-23 6200B21,3,5-Trimethylbenzene ND 40 4/4/23 6:09 MFFg/L3.3 4/3/23SM21-23 6200B2Vinyl Acetate ND 1.0 4/4/23 6:09 MFFg/L0.47 4/3/23SM21-23 6200B2Vinyl Chloride ND 2.0 4/4/23 6:09 MFFg/L0.98 4/3/23SM21-23 6200B2m+p Xylene ND 1.0 4/4/23 6:09 MFFg/L0.49 4/3/23SM21-23 6200B2o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 110 4/4/23 6:0970-130 Toluene-d8 99.3 4/4/23 6:0970-130 4-Bromofluorobenzene 91.0 4/4/23 6:0970-130 Page 13 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-04 Field Sample #: MW-03 Sample Matrix: Ground Water Sampled: 3/29/2023 14:00 [TOC_2]23C3558-04[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-12 Volatile Organic Compounds by GC/MS ND 200 4/4/23 6:37 MFFg/L8.0 4/3/23SM21-23 6200B4Acetone 2.1 2.0 4/4/23 6:37 MFFg/L0.74 4/3/23SM21-23 6200B4Benzene ND 2.0 4/4/23 6:37 MFFg/L0.59 4/3/23SM21-23 6200B4Bromobenzene ND 2.0 4/4/23 6:37 MFFg/L1.1 4/3/23SM21-23 6200B4Bromochloromethane ND 2.0 4/4/23 6:37 MFFg/L0.63 4/3/23SM21-23 6200B4Bromodichloromethane ND 2.0 4/4/23 6:37 MFFg/L1.6 4/3/23SM21-23 6200B4Bromoform ND 8.0 4/4/23 6:37 MFFg/L5.3 4/3/23SM21-23 6200B4Bromomethane ND 20 4/4/23 6:37 MFFg/L6.7 4/3/23SM21-23 6200B42-Butanone (MEK) 0.60 2.0 4/4/23 6:37 MFFg/L0.60 4/3/23SM21-23 6200B4Jn-Butylbenzene ND 2.0 4/4/23 6:37 MFFg/L0.51 4/3/23SM21-23 6200B4sec-Butylbenzene ND 2.0 4/4/23 6:37 MFFg/L0.57 4/3/23SM21-23 6200B4tert-Butylbenzene ND 2.0 4/4/23 6:37 MFFg/L0.65 4/3/23SM21-23 6200B4Carbon Tetrachloride ND 2.0 4/4/23 6:37 MFFg/L0.48 4/3/23SM21-23 6200B4Chlorobenzene ND 200 4/4/23 6:37 MFFg/L81 4/3/23SM21-23 6200B4Ethanol ND 2.0 4/4/23 6:37 MFFg/L0.80 4/3/23SM21-23 6200B4Chlorodibromomethane ND 2.0 4/4/23 6:37 MFFg/L1.4 4/3/23SM21-23 6200B4Chloroethane ND 2.0 4/4/23 6:37 MFFg/L0.56 4/3/23SM21-23 6200B4Chloroform ND 2.4 4/4/23 6:37 MFFg/L2.0 4/3/23SM21-23 6200B4Chloromethane ND 2.0 4/4/23 6:37 MFFg/L0.62 4/3/23SM21-23 6200B42-Chlorotoluene ND 2.0 4/4/23 6:37 MFFg/L0.62 4/3/23SM21-23 6200B44-Chlorotoluene ND 2.0 4/4/23 6:37 MFFg/L0.64 4/3/23SM21-23 6200B41,2-Dibromoethane (EDB) ND 2.0 4/4/23 6:37 MFFg/L0.52 4/3/23SM21-23 6200B41,2-Dichlorobenzene ND 2.0 4/4/23 6:37 MFFg/L0.55 4/3/23SM21-23 6200B41,3-Dichlorobenzene ND 2.0 4/4/23 6:37 MFFg/L0.51 4/3/23SM21-23 6200B41,4-Dichlorobenzene ND 2.0 4/4/23 6:37 MFFg/L0.64 4/3/23SM21-23 6200B4Dichlorodifluoromethane (Freon 12) ND 2.0 4/4/23 6:37 MFFg/L0.55 4/3/23SM21-23 6200B41,1-Dichloroethane ND 2.0 4/4/23 6:37 MFFg/L1.2 4/3/23SM21-23 6200B41,2-Dichloroethane ND 2.0 4/4/23 6:37 MFFg/L0.56 4/3/23SM21-23 6200B41,1-Dichloroethylene ND 2.0 4/4/23 6:37 MFFg/L0.56 4/3/23SM21-23 6200B4cis-1,2-Dichloroethylene ND 2.0 4/4/23 6:37 MFFg/L0.69 4/3/23SM21-23 6200B4trans-1,2-Dichloroethylene ND 2.0 4/4/23 6:37 MFFg/L0.77 4/3/23SM21-23 6200B41,2-Dichloropropane ND 2.0 4/4/23 6:37 MFFg/L0.46 4/3/23SM21-23 6200B41,3-Dichloropropane ND 2.0 4/4/23 6:37 MFFg/L1.4 4/3/23SM21-23 6200B42,2-Dichloropropane ND 2.0 4/4/23 6:37 MFFg/L0.60 4/3/23SM21-23 6200B41,1-Dichloropropene ND 2.0 4/4/23 6:37 MFFg/L0.65 4/3/23SM21-23 6200B4cis-1,3-Dichloropropene ND 2.0 4/4/23 6:37 MFFg/L0.57 4/3/23SM21-23 6200B4trans-1,3-Dichloropropene ND 2.0 4/4/23 6:37 MFFg/L0.81 4/3/23SM21-23 6200B4Diisopropyl Ether (DIPE) 2.4 2.0 4/4/23 6:37 MFFg/L0.88 4/3/23SM21-23 6200B4Ethylbenzene ND 20 4/4/23 6:37 MFFg/L4.8 4/3/23SM21-23 6200B42-Hexanone (MBK) 1.9 2.0 4/4/23 6:37 MFFg/L0.60 4/3/23SM21-23 6200B4JIsopropylbenzene (Cumene) ND 2.0 4/4/23 6:37 MFFg/L0.51 4/3/23SM21-23 6200B4p-Isopropyltoluene (p-Cymene) 5.1 2.0 4/4/23 6:37 MFFg/L0.68 4/3/23SM21-23 6200B4Methyl tert-Butyl Ether (MTBE) ND 20 4/4/23 6:37 MFFg/L0.71 4/3/23SM21-23 6200B4Methylene Chloride ND 20 4/4/23 6:37 MFFg/L5.3 4/3/23SM21-23 6200B4L-044-Methyl-2-pentanone (MIBK) Page 14 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-04 Field Sample #: MW-03 Sample Matrix: Ground Water Sampled: 3/29/2023 14:00 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-12 Volatile Organic Compounds by GC/MS ND 2.0 4/4/23 6:37 MFFg/L1.5 4/3/23SM21-23 6200B4L-04Naphthalene 3.4 2.0 4/4/23 6:37 MFFg/L0.50 4/3/23SM21-23 6200B4n-Propylbenzene ND 2.0 4/4/23 6:37 MFFg/L0.60 4/3/23SM21-23 6200B4Styrene ND 2.0 4/4/23 6:37 MFFg/L0.55 4/3/23SM21-23 6200B41,1,2,2-Tetrachloroethane ND 2.0 4/4/23 6:37 MFFg/L0.67 4/3/23SM21-23 6200B4Tetrachloroethylene ND 2.0 4/4/23 6:37 MFFg/L0.89 4/3/23SM21-23 6200B4Toluene ND 4.0 4/4/23 6:37 MFFg/L1.4 4/3/23SM21-23 6200B41,2,3-Trichlorobenzene ND 4.0 4/4/23 6:37 MFFg/L1.2 4/3/23SM21-23 6200B41,2,4-Trichlorobenzene ND 2.0 4/4/23 6:37 MFFg/L0.60 4/3/23SM21-23 6200B41,1,1-Trichloroethane ND 2.0 4/4/23 6:37 MFFg/L0.76 4/3/23SM21-23 6200B41,1,2-Trichloroethane ND 2.0 4/4/23 6:37 MFFg/L0.70 4/3/23SM21-23 6200B4Trichloroethylene ND 2.0 4/4/23 6:37 MFFg/L0.62 4/3/23SM21-23 6200B4Trichlorofluoromethane (Freon 11) ND 2.0 4/4/23 6:37 MFFg/L1.1 4/3/23SM21-23 6200B41,2,3-Trichloropropane ND 2.0 4/4/23 6:37 MFFg/L0.80 4/3/23SM21-23 6200B41,2,4-Trimethylbenzene 0.64 2.0 4/4/23 6:37 MFFg/L0.60 4/3/23SM21-23 6200B4J1,3,5-Trimethylbenzene ND 80 4/4/23 6:37 MFFg/L6.7 4/3/23SM21-23 6200B4Vinyl Acetate ND 2.0 4/4/23 6:37 MFFg/L0.95 4/3/23SM21-23 6200B4Vinyl Chloride ND 4.0 4/4/23 6:37 MFFg/L2.0 4/3/23SM21-23 6200B4m+p Xylene ND 2.0 4/4/23 6:37 MFFg/L0.97 4/3/23SM21-23 6200B4o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 109 4/4/23 6:3770-130 Toluene-d8 99.9 4/4/23 6:3770-130 4-Bromofluorobenzene 89.8 4/4/23 6:3770-130 Page 15 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-05 Field Sample #: MW-04 Sample Matrix: Ground Water Sampled: 3/29/2023 14:58 [TOC_2]23C3558-05[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-11 Volatile Organic Compounds by GC/MS ND 500 4/4/23 7:04 MFFg/L20 4/3/23SM21-23 6200B10Acetone 780 5.0 4/4/23 7:04 MFFg/L1.8 4/3/23SM21-23 6200B10Benzene ND 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B10Bromobenzene ND 5.0 4/4/23 7:04 MFFg/L2.8 4/3/23SM21-23 6200B10Bromochloromethane ND 5.0 4/4/23 7:04 MFFg/L1.6 4/3/23SM21-23 6200B10Bromodichloromethane ND 5.0 4/4/23 7:04 MFFg/L4.1 4/3/23SM21-23 6200B10Bromoform ND 20 4/4/23 7:04 MFFg/L13 4/3/23SM21-23 6200B10Bromomethane 24 50 4/4/23 7:04 MFFg/L17 4/3/23SM21-23 6200B10J2-Butanone (MEK) 24 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B10n-Butylbenzene 17 5.0 4/4/23 7:04 MFFg/L1.3 4/3/23SM21-23 6200B10sec-Butylbenzene 2.3 5.0 4/4/23 7:04 MFFg/L1.4 4/3/23SM21-23 6200B10Jtert-Butylbenzene ND 5.0 4/4/23 7:04 MFFg/L1.6 4/3/23SM21-23 6200B10Carbon Tetrachloride ND 5.0 4/4/23 7:04 MFFg/L1.2 4/3/23SM21-23 6200B10Chlorobenzene ND 500 4/4/23 7:04 MFFg/L200 4/3/23SM21-23 6200B10Ethanol ND 5.0 4/4/23 7:04 MFFg/L2.0 4/3/23SM21-23 6200B10Chlorodibromomethane ND 5.0 4/4/23 7:04 MFFg/L3.4 4/3/23SM21-23 6200B10Chloroethane ND 5.0 4/4/23 7:04 MFFg/L1.4 4/3/23SM21-23 6200B10Chloroform ND 6.0 4/4/23 7:04 MFFg/L5.0 4/3/23SM21-23 6200B10Chloromethane ND 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B102-Chlorotoluene ND 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B104-Chlorotoluene ND 5.0 4/4/23 7:04 MFFg/L1.6 4/3/23SM21-23 6200B101,2-Dibromoethane (EDB) ND 5.0 4/4/23 7:04 MFFg/L1.3 4/3/23SM21-23 6200B101,2-Dichlorobenzene ND 5.0 4/4/23 7:04 MFFg/L1.4 4/3/23SM21-23 6200B101,3-Dichlorobenzene ND 5.0 4/4/23 7:04 MFFg/L1.3 4/3/23SM21-23 6200B101,4-Dichlorobenzene ND 5.0 4/4/23 7:04 MFFg/L1.6 4/3/23SM21-23 6200B10Dichlorodifluoromethane (Freon 12) ND 5.0 4/4/23 7:04 MFFg/L1.4 4/3/23SM21-23 6200B101,1-Dichloroethane ND 5.0 4/4/23 7:04 MFFg/L3.0 4/3/23SM21-23 6200B101,2-Dichloroethane ND 5.0 4/4/23 7:04 MFFg/L1.4 4/3/23SM21-23 6200B101,1-Dichloroethylene ND 5.0 4/4/23 7:04 MFFg/L1.4 4/3/23SM21-23 6200B10cis-1,2-Dichloroethylene ND 5.0 4/4/23 7:04 MFFg/L1.7 4/3/23SM21-23 6200B10trans-1,2-Dichloroethylene ND 5.0 4/4/23 7:04 MFFg/L1.9 4/3/23SM21-23 6200B101,2-Dichloropropane ND 5.0 4/4/23 7:04 MFFg/L1.2 4/3/23SM21-23 6200B101,3-Dichloropropane ND 5.0 4/4/23 7:04 MFFg/L3.5 4/3/23SM21-23 6200B102,2-Dichloropropane ND 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B101,1-Dichloropropene ND 5.0 4/4/23 7:04 MFFg/L1.6 4/3/23SM21-23 6200B10cis-1,3-Dichloropropene ND 5.0 4/4/23 7:04 MFFg/L1.4 4/3/23SM21-23 6200B10trans-1,3-Dichloropropene 13 5.0 4/4/23 7:04 MFFg/L2.0 4/3/23SM21-23 6200B10Diisopropyl Ether (DIPE) 350 5.0 4/4/23 7:04 MFFg/L2.2 4/3/23SM21-23 6200B10Ethylbenzene ND 50 4/4/23 7:04 MFFg/L12 4/3/23SM21-23 6200B102-Hexanone (MBK) 83 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B10Isopropylbenzene (Cumene) ND 5.0 4/4/23 7:04 MFFg/L1.3 4/3/23SM21-23 6200B10p-Isopropyltoluene (p-Cymene) 430 5.0 4/4/23 7:04 MFFg/L1.7 4/3/23SM21-23 6200B10Methyl tert-Butyl Ether (MTBE) ND 50 4/4/23 7:04 MFFg/L1.8 4/3/23SM21-23 6200B10Methylene Chloride ND 50 4/4/23 7:04 MFFg/L13 4/3/23SM21-23 6200B10L-044-Methyl-2-pentanone (MIBK) Page 16 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-05 Field Sample #: MW-04 Sample Matrix: Ground Water Sampled: 3/29/2023 14:58 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-11 Volatile Organic Compounds by GC/MS 79 5.0 4/4/23 7:04 MFFg/L3.8 4/3/23SM21-23 6200B10L-04Naphthalene 220 5.0 4/4/23 7:04 MFFg/L1.2 4/3/23SM21-23 6200B10n-Propylbenzene ND 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B10Styrene ND 5.0 4/4/23 7:04 MFFg/L1.4 4/3/23SM21-23 6200B101,1,2,2-Tetrachloroethane ND 5.0 4/4/23 7:04 MFFg/L1.7 4/3/23SM21-23 6200B10Tetrachloroethylene 16 5.0 4/4/23 7:04 MFFg/L2.2 4/3/23SM21-23 6200B10Toluene ND 10 4/4/23 7:04 MFFg/L3.4 4/3/23SM21-23 6200B101,2,3-Trichlorobenzene ND 10 4/4/23 7:04 MFFg/L3.0 4/3/23SM21-23 6200B101,2,4-Trichlorobenzene ND 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B101,1,1-Trichloroethane ND 5.0 4/4/23 7:04 MFFg/L1.9 4/3/23SM21-23 6200B101,1,2-Trichloroethane ND 5.0 4/4/23 7:04 MFFg/L1.7 4/3/23SM21-23 6200B10Trichloroethylene ND 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B10Trichlorofluoromethane (Freon 11) ND 5.0 4/4/23 7:04 MFFg/L2.8 4/3/23SM21-23 6200B101,2,3-Trichloropropane 35 5.0 4/4/23 7:04 MFFg/L2.0 4/3/23SM21-23 6200B101,2,4-Trimethylbenzene ND 5.0 4/4/23 7:04 MFFg/L1.5 4/3/23SM21-23 6200B101,3,5-Trimethylbenzene ND 200 4/4/23 7:04 MFFg/L17 4/3/23SM21-23 6200B10Vinyl Acetate ND 5.0 4/4/23 7:04 MFFg/L2.4 4/3/23SM21-23 6200B10Vinyl Chloride 30 10 4/4/23 7:04 MFFg/L4.9 4/3/23SM21-23 6200B10m+p Xylene 2.5 5.0 4/4/23 7:04 MFFg/L2.4 4/3/23SM21-23 6200B10Jo-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 106 4/4/23 7:0470-130 Toluene-d8 98.4 4/4/23 7:0470-130 4-Bromofluorobenzene 90.4 4/4/23 7:0470-130 Page 17 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-06 Field Sample #: TMW-01 Sample Matrix: Ground Water Sampled: 3/29/2023 15:47 [TOC_2]23C3558-06[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS 12 50 4/4/23 0:15 MFFg/L2.0 4/3/23SM21-23 6200B1JAcetone 0.76 0.50 4/4/23 0:15 MFFg/L0.18 4/3/23SM21-23 6200B1Benzene ND 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B1Bromobenzene ND 0.50 4/4/23 0:15 MFFg/L0.28 4/3/23SM21-23 6200B1Bromochloromethane ND 0.50 4/4/23 0:15 MFFg/L0.16 4/3/23SM21-23 6200B1Bromodichloromethane ND 0.50 4/4/23 0:15 MFFg/L0.41 4/3/23SM21-23 6200B1Bromoform ND 2.0 4/4/23 0:15 MFFg/L1.3 4/3/23SM21-23 6200B1Bromomethane ND 5.0 4/4/23 0:15 MFFg/L1.7 4/3/23SM21-23 6200B12-Butanone (MEK) 1.4 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B1n-Butylbenzene 0.55 0.50 4/4/23 0:15 MFFg/L0.13 4/3/23SM21-23 6200B1sec-Butylbenzene ND 0.50 4/4/23 0:15 MFFg/L0.14 4/3/23SM21-23 6200B1tert-Butylbenzene ND 0.50 4/4/23 0:15 MFFg/L0.16 4/3/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 4/4/23 0:15 MFFg/L0.12 4/3/23SM21-23 6200B1Chlorobenzene ND 50 4/4/23 0:15 MFFg/L20 4/3/23SM21-23 6200B1Ethanol ND 0.50 4/4/23 0:15 MFFg/L0.20 4/3/23SM21-23 6200B1Chlorodibromomethane ND 0.50 4/4/23 0:15 MFFg/L0.34 4/3/23SM21-23 6200B1Chloroethane ND 0.50 4/4/23 0:15 MFFg/L0.14 4/3/23SM21-23 6200B1Chloroform ND 0.60 4/4/23 0:15 MFFg/L0.50 4/3/23SM21-23 6200B1Chloromethane ND 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B12-Chlorotoluene ND 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B14-Chlorotoluene ND 0.50 4/4/23 0:15 MFFg/L0.16 4/3/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 4/4/23 0:15 MFFg/L0.13 4/3/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 4/4/23 0:15 MFFg/L0.14 4/3/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 4/4/23 0:15 MFFg/L0.13 4/3/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 4/4/23 0:15 MFFg/L0.16 4/3/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12) ND 0.50 4/4/23 0:15 MFFg/L0.14 4/3/23SM21-23 6200B11,1-Dichloroethane ND 0.50 4/4/23 0:15 MFFg/L0.30 4/3/23SM21-23 6200B11,2-Dichloroethane ND 0.50 4/4/23 0:15 MFFg/L0.14 4/3/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 4/4/23 0:15 MFFg/L0.14 4/3/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 4/4/23 0:15 MFFg/L0.17 4/3/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 4/4/23 0:15 MFFg/L0.19 4/3/23SM21-23 6200B11,2-Dichloropropane ND 0.50 4/4/23 0:15 MFFg/L0.12 4/3/23SM21-23 6200B11,3-Dichloropropane ND 0.50 4/4/23 0:15 MFFg/L0.35 4/3/23SM21-23 6200B12,2-Dichloropropane ND 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B11,1-Dichloropropene ND 0.50 4/4/23 0:15 MFFg/L0.16 4/3/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 4/4/23 0:15 MFFg/L0.14 4/3/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 4/4/23 0:15 MFFg/L0.20 4/3/23SM21-23 6200B1Diisopropyl Ether (DIPE) 3.8 0.50 4/4/23 0:15 MFFg/L0.22 4/3/23SM21-23 6200B1Ethylbenzene ND 5.0 4/4/23 0:15 MFFg/L1.2 4/3/23SM21-23 6200B12-Hexanone (MBK) 1.1 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 4/4/23 0:15 MFFg/L0.13 4/3/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) 3.9 0.50 4/4/23 0:15 MFFg/L0.17 4/3/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 4/4/23 0:15 MFFg/L0.18 4/3/23SM21-23 6200B1Methylene Chloride ND 5.0 4/4/23 0:15 MFFg/L1.3 4/3/23SM21-23 6200B1L-044-Methyl-2-pentanone (MIBK) Page 18 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 3/31/2023 Work Order: 23C3558Sample Description:Project Location: Elizabeth City, NC Sample ID: 23C3558-06 Field Sample #: TMW-01 Sample Matrix: Ground Water Sampled: 3/29/2023 15:47 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS 1.4 0.50 4/4/23 0:15 MFFg/L0.38 4/3/23SM21-23 6200B1L-04Naphthalene 2.5 0.50 4/4/23 0:15 MFFg/L0.12 4/3/23SM21-23 6200B1n-Propylbenzene ND 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B1Styrene ND 0.50 4/4/23 0:15 MFFg/L0.14 4/3/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 4/4/23 0:15 MFFg/L0.17 4/3/23SM21-23 6200B1Tetrachloroethylene 6.4 0.50 4/4/23 0:15 MFFg/L0.22 4/3/23SM21-23 6200B1Toluene ND 1.0 4/4/23 0:15 MFFg/L0.34 4/3/23SM21-23 6200B11,2,3-Trichlorobenzene ND 1.0 4/4/23 0:15 MFFg/L0.30 4/3/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 4/4/23 0:15 MFFg/L0.19 4/3/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 4/4/23 0:15 MFFg/L0.17 4/3/23SM21-23 6200B1Trichloroethylene ND 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B1Trichlorofluoromethane (Freon 11) ND 0.50 4/4/23 0:15 MFFg/L0.28 4/3/23SM21-23 6200B11,2,3-Trichloropropane 13 0.50 4/4/23 0:15 MFFg/L0.20 4/3/23SM21-23 6200B11,2,4-Trimethylbenzene 1.1 0.50 4/4/23 0:15 MFFg/L0.15 4/3/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 4/4/23 0:15 MFFg/L1.7 4/3/23SM21-23 6200B1Vinyl Acetate ND 0.50 4/4/23 0:15 MFFg/L0.24 4/3/23SM21-23 6200B1Vinyl Chloride 5.7 1.0 4/4/23 0:15 MFFg/L0.49 4/3/23SM21-23 6200B1m+p Xylene 2.9 0.50 4/4/23 0:15 MFFg/L0.24 4/3/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 109 4/4/23 0:1570-130 Toluene-d8 99.3 4/4/23 0:1570-130 4-Bromofluorobenzene 86.7 4/4/23 0:1570-130 Page 19 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Sample Extraction Data Prep Method: SW-846 5030B-SM21-23 6200B Lab Number [Field ID]Batch DateInitial [mL]Final [mL] B335888 04/03/235 5.0023C3558-01 [Trip Blank] B335888 04/03/235 5.0023C3558-02 [MW-01] B335888 04/03/232.5 5.0023C3558-03 [MW-02] B335888 04/03/231.25 5.0023C3558-04 [MW-03] B335888 04/03/230.5 5.0023C3558-05 [MW-04] B335888 04/03/235 5.0023C3558-06 [TMW-01] [TOC_1]Sample Preparation Information[TOC] Page 20 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control QUALITY CONTROL [TOC_2]Volatile Organic Compounds by GC/MS[TOC] Batch B335888 - SW-846 5030B [TOC_3]B335888[TOC] Blank (B335888-BLK1) Prepared & Analyzed: 04/03/23 Acetone g/L50ND Benzene g/L0.50ND Bromobenzene g/L0.50ND Bromochloromethane g/L0.50ND Bromodichloromethane g/L0.50ND Bromoform g/L0.50ND Bromomethane g/L2.0ND 2-Butanone (MEK)g/L5.0ND n-Butylbenzene g/L0.50ND sec-Butylbenzene g/L0.50ND tert-Butylbenzene g/L0.50ND Carbon Tetrachloride g/L0.50ND Chlorobenzene g/L0.50ND Ethanol g/L50ND Chlorodibromomethane g/L0.50ND Chloroethane g/L0.50ND Chloroform g/L0.50ND Chloromethane g/L0.60ND 2-Chlorotoluene g/L0.50ND 4-Chlorotoluene g/L0.50ND 1,2-Dibromoethane (EDB)g/L0.50ND 1,2-Dichlorobenzene g/L0.50ND 1,3-Dichlorobenzene g/L0.50ND 1,4-Dichlorobenzene g/L0.50ND Dichlorodifluoromethane (Freon 12)g/L0.50ND 1,1-Dichloroethane g/L0.50ND 1,2-Dichloroethane g/L0.50ND 1,1-Dichloroethylene g/L0.50ND cis-1,2-Dichloroethylene g/L0.50ND trans-1,2-Dichloroethylene g/L0.50ND 1,2-Dichloropropane g/L0.50ND 1,3-Dichloropropane g/L0.50ND 2,2-Dichloropropane g/L0.50ND 1,1-Dichloropropene g/L0.50ND cis-1,3-Dichloropropene g/L0.50ND trans-1,3-Dichloropropene g/L0.50ND Diisopropyl Ether (DIPE)g/L0.50ND Ethylbenzene g/L0.50ND 2-Hexanone (MBK)g/L5.0ND Isopropylbenzene (Cumene)g/L0.50ND p-Isopropyltoluene (p-Cymene)g/L0.50ND Methyl tert-Butyl Ether (MTBE)g/L0.50ND Methylene Chloride g/L5.0ND 4-Methyl-2-pentanone (MIBK)g/L5.0 L-04ND Naphthalene g/L0.50 L-04ND n-Propylbenzene g/L0.50ND Styrene g/L0.50ND 1,1,2,2-Tetrachloroethane g/L0.50ND Tetrachloroethylene g/L0.50ND Toluene g/L0.50ND 1,2,3-Trichlorobenzene g/L1.0ND 1,2,4-Trichlorobenzene g/L0.50ND [TOC_1]QC Data[TOC] Page 21 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control QUALITY CONTROL Batch B335888 - SW-846 5030B Blank (B335888-BLK1) Prepared & Analyzed: 04/03/23 1,1,1-Trichloroethane g/L0.50ND 1,1,2-Trichloroethane g/L0.50ND Trichloroethylene g/L0.50ND Trichlorofluoromethane (Freon 11)g/L0.50ND 1,2,3-Trichloropropane g/L0.50ND 1,2,4-Trimethylbenzene g/L0.50ND 1,3,5-Trimethylbenzene g/L0.50ND Vinyl Acetate g/L20ND Vinyl Chloride g/L0.50ND m+p Xylene g/L1.0ND o-Xylene g/L0.50ND g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10726.8 g/L 25.0 70-130Surrogate: Toluene-d8 10425.9 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 86.721.7 LCS (B335888-BS1) Prepared & Analyzed: 04/03/23 Acetone g/L50 100 70-130114114 Benzene g/L0.50 10.0 70-13096.89.68 Bromobenzene g/L0.50 10.0 70-13090.09.00 Bromochloromethane g/L0.50 10.0 70-13010610.6 Bromodichloromethane g/L0.50 10.0 70-13097.29.72 Bromoform g/L0.50 10.0 70-13087.48.74 Bromomethane g/L2.0 10.0 60-14014014.0 2-Butanone (MEK)g/L5.0 100 70-130104104 n-Butylbenzene g/L0.50 10.0 70-13083.88.38 sec-Butylbenzene g/L0.50 10.0 70-13089.18.91 tert-Butylbenzene g/L0.50 10.0 70-13092.89.28 Carbon Tetrachloride g/L0.50 10.0 70-13089.98.99 Chlorobenzene g/L0.50 10.0 70-13095.89.58 Ethanol g/L50 100 70-13091.891.8 Chlorodibromomethane g/L0.50 10.0 70-13089.48.94 Chloroethane g/L0.50 10.0 60-14093.39.33 Chloroform g/L0.50 10.0 70-13095.19.51 Chloromethane g/L0.60 10.0 60-14091.59.15 2-Chlorotoluene g/L0.50 10.0 70-13092.89.28 4-Chlorotoluene g/L0.50 10.0 70-13089.78.97 1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13095.29.52 1,2-Dichlorobenzene g/L0.50 10.0 70-13094.29.42 1,3-Dichlorobenzene g/L0.50 10.0 70-13096.19.61 1,4-Dichlorobenzene g/L0.50 10.0 70-13096.29.62 Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 60-14010710.7 1,1-Dichloroethane g/L0.50 10.0 70-13092.79.27 1,2-Dichloroethane g/L0.50 10.0 70-13010310.3 1,1-Dichloroethylene g/L0.50 10.0 70-13010410.4 cis-1,2-Dichloroethylene g/L0.50 10.0 70-13096.29.62 trans-1,2-Dichloroethylene g/L0.50 10.0 70-13088.08.80 1,2-Dichloropropane g/L0.50 10.0 70-13010010.0 1,3-Dichloropropane g/L0.50 10.0 70-13095.99.59 2,2-Dichloropropane g/L0.50 10.0 70-13077.87.78 1,1-Dichloropropene g/L0.50 10.0 70-13093.99.39 cis-1,3-Dichloropropene g/L0.50 10.0 70-13090.49.04 trans-1,3-Dichloropropene g/L0.50 10.0 70-13094.79.47 Page 22 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control QUALITY CONTROL Batch B335888 - SW-846 5030B LCS (B335888-BS1) Prepared & Analyzed: 04/03/23 Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13010510.5 Ethylbenzene g/L0.50 10.0 70-13095.29.52 2-Hexanone (MBK)g/L5.0 100 70-13095.395.3 Isopropylbenzene (Cumene)g/L0.50 10.0 70-13091.09.10 p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13086.28.62 Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 70-13094.59.45 Methylene Chloride g/L5.0 10.0 70-13097.89.78 4-Methyl-2-pentanone (MIBK)g/L5.0 100 L-0470-13067.5 *67.5 Naphthalene g/L0.50 10.0 L-0470-13052.2 *5.22 n-Propylbenzene g/L0.50 10.0 70-13084.68.46 Styrene g/L0.50 10.0 70-13090.69.06 1,1,2,2-Tetrachloroethane g/L0.50 10.0 70-13087.38.73 Tetrachloroethylene g/L0.50 10.0 70-13099.89.98 Toluene g/L0.50 10.0 70-13095.09.50 1,2,3-Trichlorobenzene g/L1.0 10.0 70-13073.87.38 1,2,4-Trichlorobenzene g/L0.50 10.0 70-13078.97.89 1,1,1-Trichloroethane g/L0.50 10.0 70-13097.99.79 1,1,2-Trichloroethane g/L0.50 10.0 70-13095.49.54 Trichloroethylene g/L0.50 10.0 70-13099.39.93 Trichlorofluoromethane (Freon 11)g/L0.50 10.0 70-13010210.2 1,2,3-Trichloropropane g/L0.50 10.0 70-13011011.0 1,2,4-Trimethylbenzene g/L0.50 10.0 70-13090.29.02 1,3,5-Trimethylbenzene g/L0.50 10.0 70-13085.08.50 Vinyl Acetate g/L20 100 70-13084.684.6 Vinyl Chloride g/L0.50 10.0 60-14098.49.84 m+p Xylene g/L1.0 20.0 70-13094.819.0 o-Xylene g/L0.50 10.0 70-13090.99.09 g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10426.0 g/L 25.0 70-130Surrogate: Toluene-d8 10025.1 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 95.824.0 LCS Dup (B335888-BSD1) Prepared & Analyzed: 04/03/23 Acetone g/L50 100 2570-130103 10.4103 Benzene g/L0.50 10.0 2570-130100 3.4510.0 Bromobenzene g/L0.50 10.0 2570-13094.2 4.569.42 Bromochloromethane g/L0.50 10.0 2570-130109 3.0710.9 Bromodichloromethane g/L0.50 10.0 2570-13098.5 1.339.85 Bromoform g/L0.50 10.0 2570-13086.6 0.9208.66 Bromomethane g/L2.0 10.0 25 L-0760-140154 9.47*15.4 2-Butanone (MEK)g/L5.0 100 2570-13096.2 7.8596.2 n-Butylbenzene g/L0.50 10.0 2570-13086.4 3.068.64 sec-Butylbenzene g/L0.50 10.0 2570-13093.3 4.619.33 tert-Butylbenzene g/L0.50 10.0 2570-13097.9 5.359.79 Carbon Tetrachloride g/L0.50 10.0 2570-13092.8 3.179.28 Chlorobenzene g/L0.50 10.0 2570-13097.8 2.079.78 Ethanol g/L50 100 2570-13088.4 3.7588.4 Chlorodibromomethane g/L0.50 10.0 2570-13090.2 0.8919.02 Chloroethane g/L0.50 10.0 2560-14096.9 3.799.69 Chloroform g/L0.50 10.0 2570-13098.8 3.829.88 Chloromethane g/L0.60 10.0 2560-14095.0 3.759.50 2-Chlorotoluene g/L0.50 10.0 2570-13089.2 3.968.92 4-Chlorotoluene g/L0.50 10.0 2570-13091.1 1.559.11 Page 23 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Volatile Organic Compounds by GC/MS - Quality Control QUALITY CONTROL Batch B335888 - SW-846 5030B LCS Dup (B335888-BSD1) Prepared & Analyzed: 04/03/23 1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-13091.2 4.299.12 1,2-Dichlorobenzene g/L0.50 10.0 2570-13097.9 3.859.79 1,3-Dichlorobenzene g/L0.50 10.0 2570-13096.8 0.7269.68 1,4-Dichlorobenzene g/L0.50 10.0 2570-13094.2 2.109.42 Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 2560-140111 3.7711.1 1,1-Dichloroethane g/L0.50 10.0 2570-13096.4 3.919.64 1,2-Dichloroethane g/L0.50 10.0 2570-130102 1.3610.2 1,1-Dichloroethylene g/L0.50 10.0 2570-130107 2.9410.7 cis-1,2-Dichloroethylene g/L0.50 10.0 2570-13098.4 2.269.84 trans-1,2-Dichloroethylene g/L0.50 10.0 2570-13091.0 3.359.10 1,2-Dichloropropane g/L0.50 10.0 2570-13099.8 0.3009.98 1,3-Dichloropropane g/L0.50 10.0 2570-13096.1 0.2089.61 2,2-Dichloropropane g/L0.50 10.0 2570-13083.2 6.718.32 1,1-Dichloropropene g/L0.50 10.0 2570-130101 7.2910.1 cis-1,3-Dichloropropene g/L0.50 10.0 2570-13092.3 2.089.23 trans-1,3-Dichloropropene g/L0.50 10.0 2570-13090.9 4.099.09 Diisopropyl Ether (DIPE)g/L0.50 10.0 2570-130107 2.0810.7 Ethylbenzene g/L0.50 10.0 2570-13097.5 2.399.75 2-Hexanone (MBK)g/L5.0 100 2570-13089.1 6.7389.1 Isopropylbenzene (Cumene)g/L0.50 10.0 2570-13092.2 1.319.22 p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-13088.0 2.078.80 Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 2570-13094.1 0.4249.41 Methylene Chloride g/L5.0 10.0 2570-130105 7.0110.5 4-Methyl-2-pentanone (MIBK)g/L5.0 100 25 L-0470-13062.4 7.88*62.4 Naphthalene g/L0.50 10.0 25 L-0470-13052.5 0.573*5.25 n-Propylbenzene g/L0.50 10.0 2570-13087.7 3.608.77 Styrene g/L0.50 10.0 2570-13089.1 1.678.91 1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-13085.7 1.858.57 Tetrachloroethylene g/L0.50 10.0 2570-130101 1.2910.1 Toluene g/L0.50 10.0 2570-13097.5 2.609.75 1,2,3-Trichlorobenzene g/L1.0 10.0 2570-13073.4 0.5437.34 1,2,4-Trichlorobenzene g/L0.50 10.0 2570-13077.8 1.407.78 1,1,1-Trichloroethane g/L0.50 10.0 2570-13098.7 0.8149.87 1,1,2-Trichloroethane g/L0.50 10.0 2570-13093.0 2.559.30 Trichloroethylene g/L0.50 10.0 2570-130101 1.9910.1 Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-130106 3.8510.6 1,2,3-Trichloropropane g/L0.50 10.0 2570-130103 6.3110.3 1,2,4-Trimethylbenzene g/L0.50 10.0 2570-13093.9 4.029.39 1,3,5-Trimethylbenzene g/L0.50 10.0 2570-13088.9 4.498.89 Vinyl Acetate g/L20 100 2570-13083.0 1.8083.0 Vinyl Chloride g/L0.50 10.0 2560-140104 5.9210.4 m+p Xylene g/L1.0 20.0 2570-13094.0 0.84718.8 o-Xylene g/L0.50 10.0 2570-13091.7 0.8769.17 g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 10426.0 g/L 25.0 70-130Surrogate: Toluene-d8 99.124.8 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 93.023.3 Page 24 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 *QC result is outside of established limits. Wide recovery limits established for difficult compound. Wide RPD limits established for difficult compound. #Data exceeded client recommended or regulatory level Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the calculation which have not been rounded. No results have been blank subtracted unless specified in the case narrative section. FLAG/QUALIFIER SUMMARY Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated concentration (CLP J-Flag). J Laboratory fortified blank/laboratory control sample recovery and duplicate recovery are outside of control limits. Reported value for this compound is likely to be biased on the low side. L-04 Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but the other is within limits. RPD between the two LFB/LCS results is within method specified criteria. L-07 Elevated reporting limit due to high concentration of target compounds.RL-11 Elevated reporting limit due to matrix interference.RL-12 [TOC_1]Flag/Qualifier Summary[TOC] Page 25 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 CertificationsAnalyte CERTIFICATIONS Certified Analyses included in this Report SM21-23 6200B in Water NCAcetone NCBenzene NCBromobenzene NCBromochloromethane NCBromodichloromethane NCBromoform NCBromomethane NC2-Butanone (MEK) NCn-Butylbenzene NCsec-Butylbenzene NCtert-Butylbenzene NCCarbon Tetrachloride NCChlorobenzene NCEthanol NCChlorodibromomethane NCChloroethane NCChloroform NCChloromethane NC2-Chlorotoluene NC4-Chlorotoluene NC1,2-Dibromoethane (EDB) NC1,2-Dichlorobenzene NC1,3-Dichlorobenzene NC1,4-Dichlorobenzene NCDichlorodifluoromethane (Freon 12) NC1,1-Dichloroethane NC1,2-Dichloroethane NC1,1-Dichloroethylene NCcis-1,2-Dichloroethylene NCtrans-1,2-Dichloroethylene NC1,2-Dichloropropane NC1,3-Dichloropropane NC2,2-Dichloropropane NC1,1-Dichloropropene NCcis-1,3-Dichloropropene NCtrans-1,3-Dichloropropene NCDiisopropyl Ether (DIPE) NCEthylbenzene NC2-Hexanone (MBK) NCIsopropylbenzene (Cumene) NCp-Isopropyltoluene (p-Cymene) NCMethyl tert-Butyl Ether (MTBE) NCMethylene Chloride NC4-Methyl-2-pentanone (MIBK) NCNaphthalene NCn-Propylbenzene NCStyrene [TOC_1]Certifications[TOC] Page 26 of 30 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 CertificationsAnalyte CERTIFICATIONS Certified Analyses included in this Report SM21-23 6200B in Water NC1,1,2,2-Tetrachloroethane NCTetrachloroethylene NCToluene NC1,2,3-Trichlorobenzene NC1,2,4-Trichlorobenzene NC1,1,1-Trichloroethane NC1,1,2-Trichloroethane NCTrichloroethylene NCTrichlorofluoromethane (Freon 11) NC1,2,3-Trichloropropane NC1,2,4-Trimethylbenzene NC1,3,5-Trimethylbenzene NCVinyl Acetate NCVinyl Chloride NCm+p Xylene NCo-Xylene The CON-TEST Environmental Laboratory operates under the following certifications and accreditations: Code Description Number Expires 652North Carolina Div. of Water QualityNC 12/31/2023 Page 27 of 30 Table of Contents Page 28 of 30 Table of Contents Page 29 of 30 Table of Contents Page 30 of 30 Table of Contents