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HomeMy WebLinkAboutAS-980_10873_CA_MRP_20230531 ENVIRONMENTAL | CIVIL | GEOTECHNICAL MONITORING REPORT LITTLE CUBBARD 137 US HIGHWAY 64 RUTHERFORDTON, RUTHERFORD COUNTY, NC NCDEQ INCIDENT NO. 10873 RISK CLASSIFICATION: I0160D MAY 31, 2023 NCDEQ CONTRACT NO. N122019D TASK AUTHORIZATION NO. 03 CATLIN PROJECT NO. 221064 PREPARED FOR: MR. SCOTT RYALS 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; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 TABLE OF CONTENTS PAGE 1.0 SITE INFORMATION 1 2.0 EXECUTIVE SUMMARY 2 3.0 SCOPE OF SERVICES 3 4.0 SITE HISTORY AND CHARACTERIZATION 3 4.1 UST OWNER AND OPERATOR INFORMATION 3 4.2 UST INFORMATION 4 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 REGIONAL AND SITE GEOLOGY AND HYDROGEOLOGY 7 5.1 SOIL AND BEDROCK 7 5.2 HYDROGEOLOGY 7 6.0 SITE ASSESSMENT INFORMATION 7 6.1 RECOVERY WELL INSTALLATION 7 6.2 MMPE EVENT 8 6.3 GAUGING DATA 8 6.4 SAMPLING DATA 9 6.5 SUMMARY OF GROUNDWATER INFORMATION 10 6.6 EVALUATION OF ASSESSMENT INFORMATION 11 7.0 CONCLUSIONS AND RECOMMENDATIONS 11 8.0 STATEMENTS AND CERTIFICATION 12 9.0 LIMITATIONS 13 10.0 REFERENCES 13 NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 TABLES TABLE 1 SITE HISTORY – UST AND OTHER RELEASE INFORMATION TABLE 2 PUBLIC AND PRIVATE WATER SUPPLY WELLS WITH 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 FIGURES FIGURE 1 SITE VICINITY MAP FIGURE 2 POTENTIAL RECEPTOR MAP FIGURE 3 SITE MAP FIGURE 4 GROUNDWATER ELEVATION – MAY 3, 2023 FIGURE 5 MONITORING WELL GROUNDWATER SAMPLE ANALYTICAL RESULTS – MAY 3, 2023 APPENDICES APPENDIX A HISTORICAL DATA APPENDIX B SITE PHOTOGRAPHS APPENDIX C JOB HAZARD ANALYSES, SURVEY NOTES, AND FIELD DATA SHEETS APPENDIX D WELL LOG AND WELL CONSTRUCTION RECORD APPENDIX E MMPE REPORT AND DISPOSAL DOCUMENTS APPENDIX F LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 1 May 2023 1.0 SITE INFORMATION Site Identification Date: 05/31/2023 Site Risk/Priority Rank: I0160D UST Number: AS-980 Incident Number: 10873 Site Name: Little Cubbard Facility ID: 0-009299 Site Location: 137 US Highway 64 Nearest City/Town: Rutherfordton County: Rutherford Description of Geographical Data Point: Former UST Basin Location Method: Google Earth Latitude (decimal degrees): 35.38431° Longitude (decimal degrees): -81.94739° Contacts Information UST Owner: Ray Thomas Petroleum Company, Inc. Address: Unknown Phone: Unknown UST Operator: Ray Thomas Petroleum Company, Inc. Address: Unknown Phone: Unknown Property Owner: Timothy and Lois Mace Address: PO Box 640, Ellenboro, NC 28040 Phone: Unknown Property Occupant: Vacant Address: 137 US Highway 64, Rutherfordton, NC 28139 Phone: Not Applicable Consultant: CATLIN Engineers and Scientists Address: 220 Old Dairy Rd., Wilmington, NC 28405 Phone: (910) 452-5861 Corporate Licensure No. For Engineering Services: C-0585 Corporate Geology License No.: C-118 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: 05/31/1993 Estimated Quantity of Release: Unknown Cause of Release: Leak in the UST system Source of Release: UST system or associated fitting(s) Sizes and contents of UST system(s) from which the release occurred: • Two 2,000-gallon gasoline USTs • One 1,000-gallon diesel UST • One 550-gallon heating oil UST NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 2 May 2023 2.0 EXECUTIVE SUMMARY The Little Cubbard site is located at 137 US Highway 64, Rutherfordton, Rutherford County, North Carolina. Seven underground storage tanks (USTs) were previously operated at the site. Four USTs (one 2,000-gallon gasoline, one 1,000-gallon gasoline, one 2,000-gallon diesel, and one 450-ggallon heating oil) were removed from the site in 1993. A petroleum release was discovered during tank closure activities. No potential receptors have been identified within 1,500 feet of the release. The purpose of this report is to document the latest monitoring well installation, remediation efforts, and groundwater sampling event. On March 1, 2023, CATLIN Engineers and Scientists (CATLIN) personnel advanced one boring for the construction of a recovery well (MW-14) to 35 feet below land surface (BLS). CATLIN coordinated a mobile multi-phase extraction (MMPE) event with Advanced Environmental Services, Inc. (AES) from March 20 to March 24, 2023. Monitoring wells MW-1 and MW-4, and recovery well MW-14, were utilized as extraction points. A total of 890 gallons of impacted groundwater and light non-aqueous phase liquid (LNAPL; aka free product) were recovered. A calculated 523.17 pounds of petroleum vapors were emitted, equivalent to approximately 85.04 gallons of petroleum. On May 3, 2023, CATLIN personnel returned to the site and measured groundwater at approximately 26 feet deep across the site. Groundwater samples from three wells (MW-1, MW-4, and MW-14) were collected. The samples were 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 indicted multiple dissolved petroleum constituents at concentrations greater than those established in Title 15A of the North Carolina Administrative Code, Subchapter 2L, Section .0202 Groundwater Quality Standards (2L GWQS) in all monitoring well samples. Benzene was also above its GCL in all three samples, and MTBE was above GCL in the MW-1 and MW-14 samples. Although contaminant concentrations have generally decreased since the previous sampling event (December 2022), petroleum constituent concentrations persist above GCL at the site. CATLIN recommends installing additional monitoring wells to delineate the GCL plume and consider conducting a six-month long MMPE event. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 3 May 2023 3.0 SCOPE OF SERVICES The scope of services for this report was performed in general accordance with CATLIN proposal number 221064.3P, dated February 15, 2023. Services were authorized by the North Carolina Department of Environmental Quality’s (NCDEQ’s) Task Authorization (TA) #03, accepted on February 15, 2023, and Contract Number N122019D. The approved scope of services for this Task Authorization included: •Update the site-specific Health and Safety Plan (HASP) for drilling activities; •Install one four-inch diameter recovery well (MW-14) up to 35 feet BLS; •Survey the top of casing (TOC) elevation of the new recovery well relative toan existing well; •Coordinate and oversee a MMPE event utilizing MW-1, MW-4, and MW-14 as extraction points; •Approximately 30 days after the MMPE event, collect groundwater samplesfrom MW-1, MW-4, and MW-14; •Analyze four water samples (two monitoring wells, one recovery well, and one field blank) according to SM 6200B (including EDB, MTBE, and DIPE);and •Prepare and submit a monitoring report summarizing the findings. The scope of services were conducted in accordance with the approved TA. 4.0 SITE HISTORY AND CHARACTERIZATION The Little Cubbard site is located at 137 US Highway 64, Rutherfordton, Rutherford County, North Carolina (Figures 1 and 2). Summarized available historical sampling and gauging data from previous consultants are provided in Appendix A. Recent site photographs are presented in Appendix B. 4.1 UST OWNER AND OPERATOR INFORMATION Ray Thomas Petroleum Company, Inc. (Thomas Petroleum), owned the USTs historically operated on-site. Thomas Petroleum filed for Chapter 11 Bankruptcy in 2013. The site was subsequently accepted in into the North Carolina UST Section Trust Fund Branch State Lead Program (NCDEQ, 2015). Available information regarding UST owners/operators and is presented on Table 1. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 4 May 2023 4.2 UST INFORMATION Limited historical files available on the NCDEQ Waste Management Online Database (aka Laserfiche) present conflicting information regarding the former USTs. According to NCDEQ Department of Waste Management (DWM) memo (2015) and the NCDEQ Tanks Database, up to seven USTs were previously operated at the site. However, reports prepared by ECS Southeast, LLP (ECS) and the GW/UST-2 Form completed by Bruce Bridges of Quality Petroleum Installation Service and submitted after UST removal only reference four USTs (ECS, 2020; Bridges, 1993). The GW/UST-2 form indicates that one 2,000-gallon gasoline UST, one 1,000-gallon gasoline UST, one 2,000 gallon-diesel UST, and one 250-gallon heating oil UST were removed from the site in 1993 (Bridges, 1993). It is likely that additional USTs were historically operated at the site, however their capacity, previous contents, and operation dates are unknown. Reportedly, all USTs have been removed from the site (ECS, 2019). Available UST system information is presented in Table 1 and the approximate former UST system locations are shown on Figure 3. 4.3 CONTAMINANT SOURCE INVENTORY An on-site release was discovered in 1993 during tank closure activities. According to NCDEQ records, elevated concentrations of benzene, toluene, ethylbenzene, and total xylenes (BTEX) compounds were detected in soil samples collected from beneath the former diesel and gasoline USTs (NCDEQ, 2015). A site history summary is included in Appendix A. 4.4 SITE CHARACTERISTICS The property is owned by Timothy and Lois Mace. The site has been razed and the former structures are no longer present. 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 residences and businesses. Residences are located to the north, west, and east of the site. The Thermal Belt Rail-Trail is located across Long Street, west of the site. A construction field office is located to the northeast, across US Highway 64 from the site. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 5 May 2023 4.6 RECEPTOR INFORMATION Conducting a receptor survey was outside the scope of this monitoring event. A review of historical files available on the NCDEQ Waste Management Online Database (aka Laserfiche) indicates that the last receptor survey update for the Little Cubbard site was conducted in 2020 by ECS. According to previous reports, municipal water is available to the site vicinity. ECS did not identify any receptors within 500 feet of the site but did indicate there is potential that some properties located near the site utilize water supply wells. No surface water bodies were identified within 1,500 feet of the site. Potential receptors are illustrated on Figure 2 and receptor information obtained from ECS (2020) is shown on Table 2. 4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES The release was discovered in 1993 during UST closure activities. Historical files available on Laserfiche do not fully elucidate the site history. However, according to the site history presented in a State Lead Referral Memo prepared by NCDEQ personnel, 120 cubic yards of contaminated soil were removed with the USTs in 1993. Elevated concentrations of BTEX compounds were reported in soil samples collected from beneath the gasoline and diesel USTs (NCDEQ, 2015). Between 1993 and 1994, 13 Type II monitoring wells (MW-1 through MW-13) were installed during Comprehensive Site Assessment (CSA) activities. Several VOCs were reported above their respective 2L GWQS in samples collected from multiple wells during the CSA. LNAPL was measured in monitoring well MW-4. A soil sample collected during monitoring well installation reportedly contained elevated concentrations of Total Petroleum Hydrocarbons (TPH) (NCDEQ, 2015). Following the CSA, 0.45 gallons of LNAPL were recovered from MW-4 in February 1994 and a Corrective Action Plan (CAP) was submitted by CBM Environmental (CBM) in November 1994. The CAP reportedly recommended LNAPL and impacted soil removal, and to remediate groundwater by conducting groundwater recovery and treatment with soil-venting on-site. The CAP-proposed remedial actions were reportedly initated by July 20, 1996 and deep well TW-1 was installed by 2002 (NCDEQ, 2015). Regular groundwater monitoring and LNAPL recovery events have been conducted at the site since 1994. LNAPL has previously been measured in monitoring wells MW-1, MW-4, and TW-1. It is unclear how LNAPL was historically recovered from the wells and the total amount of LNAPL removed is unknown (NCDEQ, 2015). In 2019, ECS conducted an Aggressive Fluid NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 6 May 2023 Vapor Recovery (AFVR) event, using MW-4 as an extraction point. During the AFVR event, a calculated total of 0.0610 pounds of VOCs were emitted as vapor and approximately 278 gallons of petroleum-impacted groundwater was recovered (ECS, 2019). Groundwater samples previously obtained from monitoring wells MW-1, MW-4, MW-7, and TW-1 have reportedly contained petroleum constituents at concentrations above their respective GCL. Since 1995, the BTEX compound concentrations have generally decreased in samples obtained from on-site monitoring wells. During monitoring events conducted in 2019, groundwater samples were obtained from MW-1, MW-2, MW-3, MW-4, MW-6, MW-7, MW-9, MW-11, and TW-1. Laboratory analytical results revealed multiple petroleum constituents at concentrations above their 2L GWQS in samples from MW-1, MW-4, MW-6, MW-7, MW-9, and TW-1. Benzene was reported above its GCL in the samples collected from MW-1 and MW-4 in 2019 (ECS, 2020). In 2020, Provectus ORS sleeve (ORS) remedial devices were deployed in monitoring wells MW-1 and MW-4. However, groundwater samples were not obtained six months after deployment (as recommended) to determine the efficacy of the ORS devices (ECS, 2020). CATLIN conducted a groundwater monitoring event in June 2021. During the site visit, TW-1 was observed as destroyed, MW-6 was obstructed, and wells MW-3 and MW-7 could not be located and were presumed destroyed. The remaining monitoring wells were gauged and sampled. Laboratory results revealed multiple contaminants in the samples from MW-1, MW-2, and MW-4 at concentrations above 2L GWQS. Benzene and MTBE were above their respective GCL in the sample from MW-1, and benzene was above GCL in the MW-4 sample. No measurable thickness of LNAPL was present in any of the monitoring wells (CATLIN, 2021). In November 2022, CATLIN supervised a MMPE event by AES utilizing monitoring wells MW-1 and MW-4. Prior to the event, LNAPL was measured in both MW-1 (0.02 feet thick) and MW-4 (0.25 feet thick). A total of 2,010 gallons of impacted groundwater and LNAPL were removed and approximately 2,699.07 pounds of petroleum vapors were emitted (equivalent to 438.73 gallons of petroleum). CATLIN returned to the site in December 2022 to gauge and sample MW-1 and MW-4. There was no measurable thickness of LNAPL in the wells. Several petroleum constituents were reported at concentrations above 2L GWQS in both samples. Benzene, EDB, and MTBE were above their respective GCL in the sample from MW-1, and benzene was above GCL in the MW-4 sample (CATLIN, 2023). Summarized historical data from ECS (2020) and a detailed site history prepared by NCDEQ personnel are presented in Appendix A. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 7 May 2023 5.0 REGIONAL AND 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 Piedmont physiographic province. The site is underlain by interlayered hornblende gneiss, metagabbro, mica schist, and granitic rock of the Inner Piedmont belt. The boring log from recovery well installation (MW-14) during this monitoring period indicates that silty clay is present to approximately 18 feet BLS. Sandy clay was encountered from approximately 18 to 33 feet BLS. White sand was observed at further depths. 5.2 HYDROGEOLOGY Groundwater - The 2020 Visual Hydrogeologic Framework – North Carolina Hydrogeological Database did not identify sufficient boreholes near the site to draw a cross-section. Sandy clay was recently encountered in the surficial aquifer. Surface Water – ECS (2020) did not identify any surface water bodies within 1,500 feet of the site during the most recent receptor survey. 6.0 SITE ASSESSMENT INFORMATION CATLIN conducted field activities in general accordance with the approved TA and pre-prepared HASP. Field activities included recovery well (MW-14) installation, a MMPE event, and groundwater sampling. Upon arrival at the site, potential hazards were evaluated before beginning field work and are documented on electronic Job Hazard Analysis (JHA) forms. The JHA forms are included in Appendix C. Photographs from the site visits are included in Appendix B. Well locations and site features are shown on Figure 3 and well construction details are presented on Table 3. 6.1 RECOVERY WELL INSTALLATION On March 1, 2023, a boring was advanced to 35 feet BLS for recovery well construction by a North Carolina Certified Well Contractor, utilizing hollow stem augers and a Diedrich D-50 drill rig. Cuttings generated during drilling activities were spread on-site. The well (MW-14) 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, 20 feet of 4-inch diameter, 0.010-inch slotted PVC well screen and approximately 15 feet of 4-inch NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 8 May 2023 diameter solid PVC riser to the surface. The annular space was filled with coarse sand pack to approximately two feet above the well screen and bentonite chips to within one foot of the ground surface. The bentonite chips were poured from the surface while simultaneously pouring water to facilitate hydration. The well was finished with a locking well cap, a flush-mount steel wellhead, and a concrete pad. After installation, the well was developed by over-pumping. The TOC elevation was measured using traditional survey methods (Rod and Level) in relation to a preexisting monitoring well (MW-1). Monitoring well construction information is summarized on Table 3 and a site map with monitoring well location is illustrated on Figure 3. Site photographs are presented in Appendix B. The well log and Well Construction Record were submitted to NCDEQ on March 6, 2023; copies are provided in Appendix D. 6.2 MMPE EVENT CATLIN mobilized to the site on March 20 and March 24, 2023 to supervise a MMPE event conducted by AES. Prior to the event, CATLIN personnel gauged monitoring wells MW-1 and MW-4, and recovery well MW-14 using an electronic groundwater interface probe and measured depth to water at approximately 26 feet below top of casing (BTOC). LNAPL was not measured. The MMPE event was conducted for a duration of 96 hours, ending on March 24, 2023. Monitoring wells MW-1 and MW-4, and recovery well MW-14 were utilized as extraction points. A total of 890 gallons of impacted groundwater and LNAPL were removed from the subsurface. No measurable LNAPL was observed. The vacuum at the recovery pump ranged from 17.0 to 20.5 inches of mercury and stabilized at 17.0 inches of mercury. Airflow rates ranged from 2,800 to 3,300 feet per minute and stabilized at 3,300 feet per minute. The system temperature ranged from 102 to 132 degrees Fahrenheit, and humidity maintained and stabilized at 99%. Field-gauged VOCs decreased from 24,000 parts per million (ppm) to 13,000 ppm throughout the event. A calculated 523.17 pounds of petroleum vapors were emitted during this event, equivalent to approximately 85.04 gallons of petroleum. The average rate of liquid recovery was 9.27 gallons per hour. The MMPE report from AES, including material manifests and emissions calculations, is included in Appendix E. 6.3 GAUGING DATA Historically, depth to groundwater in the shallow wells has ranged from 4.75 feet BTOC (MW-10) to 29.71 feet BTOC (MW-11). Depth to groundwater in the deep well (TW-1) had ranged from 21.50 feet BTOC to 36.77 feet BTOC (ECS, 2020). NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 9 May 2023 During the May 2023 event, CATLIN personnel measured depth to water using an electronic water interface probe. To prevent cross contamination, the probe and cabling were decontaminated according to the 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 Environmental Protection Agency (EPA) Region 4 Operating Procedures. Depth to water ranged from 24.14 feet BTOC (MW-4) to 27.29 feet BTOC (MW-1). Based on groundwater elevations calculated for this monitoring period, groundwater flow direction is towards the northwest. Monitoring well gauging results for events conducted by CATLIN are presented in Table 3. Groundwater elevation is illustrated on Figure 4 and groundwater sampling forms are provided in Appendix C. 6.4 SAMPLING DATA Following gauging, the wells were sampled in general accordance with NCDENR and NCDEQ Guidelines, and EPA Region 4 Operating Procedures. Prior to obtaining representative groundwater samples, each monitoring well was purged by removing a minimum of three well volumes using a new, disposable bailer. Monitoring well 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). 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. After a minimum of three well volumes were removed (or the well was bailed dry), a groundwater sample was collected from each well and poured into appropriate laboratory-provided, pre-preserved glassware, labeled, and placed on ice in an insulated cooler. A field blank was collected by pouring distilled water from a new gallon jug into appropriate laboratory-provided, pre-preserved glassware, labeled, and placed on ice in an insulated cooler. The groundwater samples and field 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 for analyses described in Section 3.0 Scope of Services. The COC is included with the analytical report provided Appendix F. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 10 May 2023 6.5 SUMMARY OF GROUNDWATER INFORMATION Historically, samples from monitoring wells MW-1 and MW-4 have contained the highest petroleum constituent concentrations. During the previous sampling event (December 2022), monitoring wells MW-1 and MW-4 contained several VOCs at concentrations above their 2L GWQS. Benzene, EDB, and MTBE were reported above GCL in the MW-1 sample, and benzene was above GCL in the sample from MW-4. LNAPL has been previously detected in MW-1, MW-4, and TW-1. Historical information prepared by other consultants is included in Appendix A. The latest groundwater sampling laboratory results for SM 6200B analysis are summarized in Table 4. Historical results for events conducted by CATLIN are included in Table 5. Monitoring well sample analytical results are illustrated on Figure 5. A copy of the complete laboratory report and COC documentation are in Appendix F. Monitoring/Recovery Wells During the May 2023 monitoring event, three groundwater samples (MW-1, MW-4, and MW-14) were collected and submitted for analysis via SM 6200B (including EDB, MTBE, and DIPE). Benzene was reported above its GCL in all three samples, and MTBE was also above its GCL in the MW-1 and MW-4 samples. Analytical results reported the following constituents at concentrations above their 2L GWQS in the samples: •MW-1: benzene (GCL exceedance), DIPE, ethylbenzene,isopropylbenzene, MTBE (GCL exceedance), naphthalene, n- propylbenzene, toluene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, and total xylenes; •MW-4: benzene (GCL exceedance), ethylbenzene, isopropylbenzene,MTBE, naphthalene, n-propylbenzene, toluene, 1,2,4- trimethylbenzene, 1,3,4-trimethylbenzene, and total xylenes; and •MW-14: benzene (GCL exceedance), DIPE, ethylbenzene,isopropylbenzene, MTBE (GCL exceedance), naphthalene, n-propylbenzene, toluene, 1,2,4-trimethylbenzene, 1,3,5- trimethylbenzene, and total xylenes. Field Blank One field blank sample was submitted for analysis per SM 6200B (including EDB, MTBE, and DIPE). An estimated (“J”-value) concentration of acetone, a known laboratory artifact, was detected in the field blank sample. No other targeted analytes were detected. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 11 May 2023 6.6 EVALUATION OF ASSESSMENT INFORMATION Extent of Contamination Several petroleum constituents were detected above their respective 2L GWQS in samples from MW-1, MW-4, and MW-14. Samples from MW-1 and MW-14 contained concentrations of benzene and MTBE above their respective GCL. The MW-4 sample also revealed MTBE above its GCL. A summary of monitoring well groundwater sample analytical results are illustrated on Figure 5. The highest petroleum constituent concentrations have historically been reported in samples from MW-1 and MW-4. Analytical results from the previous monitoring event (December 2022) revealed several petroleum constituents above 2L GWQS in multiple monitoring well samples. Benzene, EDB, and MTBE were reported above GCL in the sample from MW-1. Laboratory analysis for samples collected during this event indicate benzene and/or MTBE remain above GCL in samples from MW-1, MW-4, and MW-14, although overall VOC concentrations have generally decreased since the previous event (CATLIN, 2022). Cleanup Levels Achieved Soil – In October 1993, approximately 120 cubic yards of impacted soil were removed from the site. Soil samples obtained from beneath the former USTs and MW-1 boring contained elevated BTEX and TPH concentrations (NCDEQ, 2015). Groundwater – Groundwater contaminant concentrations are above 2L GWQS at the site and benzene and MTBE were reported above GCL. LNAPL – LNAPL was not measured during this monitoring period. LNAPL has been periodically measured at the site since 1994. 7.0 CONCLUSIONS AND RECOMMENDATIONS Conclusions Site activities for this period are summarized below: •One four-inch recovery well (MW-14) was installed to 35 feet BLS. •A MMPE event was conducted utilizing MW-1, MW-4, and MW-14 as extraction points. A total of 890 gallons of impacted groundwater and LNAPLwere removed. A calculated 523.17 pounds of petroleum vapors wereemitted, equivalent to 85.04 gallons of petroleum. •Approximately 30 days after the MMPE event, monitoring wells MW-1 and MW-4, and recovery well MW-14 were sampled. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 12 May 2023 •Multiple VOCs were detected above 2L GWQS in the MW-1, MW-4, andMW-14 samples. •Benzene and MTBE were detected above their GCL in the MW-1 and MW-14samples. Benzene was also detected above its GCL in the MW-4 sample. •LNAPL was not measured during this monitoring event. •The petroleum constituent concentrations in the monitoring well samples hasgenerally decreased since December 2022, but VOC concentrations persistabove GCL. Recommendations CATLIN recommends installing additional wells to delineate the GCL plume and consider conducting a six-month long MMPE event. 8.0 STATEMENTS AND CERTIFICATION 1 Enter the date the monitoring report was due. May 26, 2023 Will this report be submitted after the established due date? NO This report was submitted on May 31, 2023, within the 10-day grace period. 2 Was any required information from the above template missing from this report? YES No cross sections are provided. Adequate subsurface information is not available. 3 If applicable, will any of the proposed attenuation milestones under the schedule approved in the Corrective Action Plan not be met? NA The CAP is not publicly available on Laserfiche. 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. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 13 May 2023 9.0 LIMITATIONS The 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 between 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. 10.0 REFERENCES CATLIN Engineers and Scientists, Monitoring Report, Little Cubbard, 137 US Highway 84, Ruth, Rutherford County, North Carolina, NCDEQ Incident No. 10873, Risk Classification: I0160D, July 9, 2021. CATLIN Engineers and Scientists, Letter Report, Little Cubbard, 137 US Highway 64, Rutherfordton, NC 28040, Incident Number: 10873, Risk Classification: I0160D, CATLIN Project No. 221064, January 9, 2023. ECS Southeast, LLP, Groundwater Monitoring Report, Little Cubbard, 137 US Highway 64, Ruth, Rutherford County, North Carolina, December 19, 2019. ECS Southeast, LLP, Receptor Survey Update and Provectus ORS Sleeve Installation Letter Report, Little Cubbard Site, 137 US Highway 64, Ruth, Rutherford County, North Carolina, NCDEQ Incident: 10873, NCDEQ Contract:N17006, ECS Project 9:8976-B, July 2, 2020. NCDEQ, Division of Waste Management, Bob Davies and Kristin Hicklin, Memo, Little Cubbard, Incident # 10873, 101 Morgantown Hwy, Rutherfordton, March 13, 2015. NCDEQ, Division of Waste Management, Quality Petroleum Installation Services, Bruce Bridges, GW/UST-2, Site Investigation Report For Permanent Closure or Change-in-Service of U.S.T., July 7, 1993. NCDEQ, Division of Water Resources, 2020 Visual Hydrogeologic Framework, North Carolina Hydrogeological Database, ncwater.org/?page=350, accessed April 15, 2021. NCDEQ, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, Corrective Action Guidelines, January 19, 2021. NCDENR, UST Section, North Carolina Department of Environment and Natural Resources, Division of Waste Management, Guidelines for Sampling, December 1, 2013. NCDEQ, UST Section, North Carolina Department of Environmental Quality, Division of Waste Management, Guidelines for Site Checks, Tank Closure, and Initial Response and Abatement, January 19, 2021. North Carolina Department of Natural Resources and Community Development, Geological Map of North Carolina, 1985. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 14 May 2023 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. 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. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 TABLES Page 1 of 1 TABLE 1 SITE HISTORY — UST AND OTHER RELEASE INFORMATION Incident Name and No.: Little Cubbard - 10873 UST ID Number Name of Owner/ Operator Last Contents Previous Contents Capacity (gal) Construction Details Tank Dimensions Installation Date (mm/dd/yy) Date Removed (mm/dd/yy) 1 Gasoline Gasoline 10,000 Single Wall Steel Unknown 02/24/71 04/28/20 2 Gasoline Gasoline 2,000 Single Wall Steel 64" x 12'02/22/80 05/31/93 3 Gasoline Gasoline 1,000 Single Wall Steel 48" x 10'02/24/71 05/31/93 3A Diesel Diesel 4,000 Single Wall Steel Unknown 06/03/93 04/28/20 4 Gasoline Gasoline 8,000 Single Wall FRP Unknown 02/24/71 04/28/20 5 Diesel Diesel 2,000 Single Wall Steel 64" x 12'02/24/71 05/31/93 6 Heating Oil/ Diesel Heating Oil/ Diesel 450 Single Wall Steel Unknown 02/24/71 05/31/93 Incident Number Material Released Date Release Discovered (mm/dd/yy) 10873 Gasoline 05/31/93 Information obtained from the GW/UST-2 Form prepared by Bruce Bridges (1993), NCDEQ DWM (2015), and NCDEQ Tanks Database. ' = feet " = inches gal = gallons Description of the Release TPH concentrations above State Action Levels revealed in soil samples during UST removal activities. Ray Thomas Petroleum Co., Inc. Dates of Ownership/ Operation (mm/dd/yy) 02/24/71 - 05/31/93 02/24/71 - 05/31/93 02/24/71 - 04/28/20 06/03/93 - 04/28/20 02/24/71 - 05/31/93 02/22/80 - 05/31/93 02/24/71 - 04/28/20 NCDEQ; 10873_Little Cubbard; T1_Site History CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 Page 1 of 1 TABLE 2 Incident Name and No.: Little Cubbard - 10873 Parcel ID Property Address Owner Name (Last, First MI) Owner Mailing Address Well?Municipal Water Status 1206798 137 US Highway 64 Rutherfordton, NC 28139 Mace, Timothy; Mace, Lois PO Box 640 Ellenbor, NC 28040 None Available - connected 1206797 145 US Highway 64 Rutherfordton, NC 28139 Mace, Timothy; Mace, Lois PO Box 640 Ellenbor, NC 28040 Unknown 1202772 142 Long Street Rutherfordton, NC 28139 Parker, Hattie S. 205 Ruffs Trail Rutherfordton, NC 28139 None Available - connected 1654034 US Highway 64 Rutherfordton, NC 28139 Ensley, Jennifer L. 171 US Highway 64 Rutherfordton, NC 28139 Unknown 1654035 159 US Highway 64 Rutherfordton, NC 28139 Department of Transportation 1546 Mail Service Center Raliegh, NC 27611 Unknown 1209550 SAME Perez, Maria G. & Calvillo, Francisco J.527 Long StreetRutherfordton, NC 28139 Unknown 1204467 SAME Faulkner, Donald R. & Beverly A. 146 Long Street Rutherfordton, NC 28139 Unknown 1204303 SAME Morrow, Travis & Morrow, Michelle 519 Long Street Rutherfordton, NC 28139 Unknown 1204466 Long Street Rutherfordton, NC 28139 Faulkner, Donald R. & Beverly A. 146 Long Street Rutherfordton, NC 28139 Unknown 1654033 SAME Ensley, Jennifer L. 171 US Highway 64 Rutherfordton, NC 28139 Unknown 1204465 US Highway 64 Rutherfordton, NC 28139 Tabernacle, Bible 198 Youngs Drive Rutherfordton, NC 28139 Unknown 1209900 189 US Highway 64 Rutherfordton, NC 28139 Tabernacle, Bible PO Box 233 Spindale, NC 28160 None Available - connected 1628243 174 US Highway 64Rutherfordton, NC 28139 McSwain, Heath & McSwain, Erin 184 US Highway 64Rutherfordton, NC 28160 None Available - connected 1628244 SAME McSwain, Heath & McSwain, Erin 184 US Highway 64 Rutherfordton, NC 28160 None Available - connected 1600001 146 US Highway 64 Rutherfordton, NC 28139 McSwain, Heath & McSwain, Erin 184 US Highway 64 Rutherfordton, NC 28160 None Available - not connected 1619239 SAME Goforth, Sheila R. 126 Shady Woods Lane Rutherfordton, NC 28139 Unknown 1619238 SAME Chavez, Jesse & Trejo, Daisy H. 110 Shady Woods LaneRutherfordton, NC 28139 Unknown 1634566 Shady Woods Lane Rutherfordton, NC 28139 Town of Ruth PO Box 791 Rutherfordton, NC 28139 Unknown 1210374 124 Rock RoadRutherfordton, NC 28139 Department of Transportation 1546 Mail Service CenterRaliegh, NC 27611 Unknown 1606563 311 E. Mountain Street Rutherfordton, NC 28139 Department of Transportation 1546 Mail Service Center Raliegh, NC 27611 Unknown 1637266 E. Mountain Street Rutherfordton, NC 28139 Department of Transportation 1546 Mail Service Center Raliegh, NC 27611 Unknown Information obtained from ECS (2020). ft. = feet PUBLIC AND PRIVATE WATER SUPPLY WELLS WITH OTHER RECEPTOR INFORMATION NCDEQ; 10873_Little Cubbard.xlsx; T2_Receptor Info CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 Page 1 of 2 TABLE 3 WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA Incident Name and No.: Little Cubbard - 10873 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 06/02/21 NMT 20.88 1,002.65 11/14/22 0.02 29.27 994.28 Pre-MMPE 11/18/22 NMT 31.13 992.40 Post-MMPE 12/15/22 NMT 29.04 994.49 03/20/23 NMT 27.26 996.27 Pre-MMPE 03/24/23 NMT 30.02 993.51 Post-MMPE 05/03/23 NMT 27.29 996.24 MW-2 05/XX/93 06/02/21 2.0 15.0 15.0-30.0 30.0 1,021.45 NMT 21.29 1,000.16 MW-3 05/XX/93 06/02/21 2.0 14.0 14.0-29.0 29.0 1,013.04 Could not locate 06/02/21 NMT 16.54 1,001.10 11/14/22 0.25 26.25 991.60 Pre-MMPE 11/18/22 Post-MMPE 12/15/22 NMT 26.12 991.52 03/20/23 NMT 24.43 993.21 Pre-MMPE 03/24/23 NMT 26.43 991.21 Post-MMPE 05/03/23 NMT 24.14 993.50 MW-5 05/XX/93 MW-6 05/XX/93 06/02/21 2.0 15.0 15.0-30.0 30.0 1,021.15 Well cap stuck MW-7 05/XX/93 06/02/21 2.0 15.5 15.5-30.5 30.5 1,024.47 Could not locate MW-8 05/XX/93 MW-9 05/XX/93 06/02/21 2.0 14.0 14.0-29.0 29.0 1,007.02 NMT 13.37 993.65 Ɨ MW-10 05/XX/93 MW-11 05/XX/93 06/02/21 2.0 20.0 20.0-30.0 30.0 1,017.52 NMT 19.64 997.88 Ɨ MW-12 05/XX/93 MW-13 05/XX/93 16.12.005/XX/93MW-1 12.5-27.5 27.5 1,017.64 1,023.5331.116.1-31.1 MW-4 05/XX/93 2.0 12.5 NM NM NM Presumed Destroyed Dry Presumed Destroyed Destroyed Presumed Destroyed Destroyed NCDEQ; 10873_Little Cubbard; T3_Well Construction & Gauging CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 Page 2 of 2 TABLE 3 WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA Incident Name and No.: Little Cubbard - 10873 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 03/01/23 NMT 27.13 994.80 03/20/23 NMT 27.01 994.92 Pre-MMPE 03/24/23 NMT 33.11 988.82 Post-MMPE 05/03/23 NMT 26.86 995.07 TW-1 05/XX/93 06/02/21 2.0 35.0 35.0-40.0 40.0 1,023.69 Destroyed ft. BLS = feet Below Land Surface XX = Exact date unknown. NM = Not Measured NMT = No Measurable Thickness MMPE = Mobile Multi-Phase Extraction Event Ɨ = Depth to water was measured above the screened interval. * = Data for wells installed prior to 2023 obtained from ECS (2020). ** = 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] The total well depth of MW-1 and MW-4 were re-gauged by CATLIN personnel in December 2022. MW-14 1,021.9335.020.0-35.020.04.003/01/23 NM NCDEQ; 10873_Little Cubbard; T3_Well Construction & Gauging CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 Page 1 of 1 TABLE 4 SUMMARY OF GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B Incident Name and No.: Little Cubbard - 10873 Date Collected (mm/dd/yy) 05/03/23 2,300 J 30,000 1,200 J 470 2,700 160 J 28,000 870 380 44,000 3,200 740 18,300 BMDL 05/03/23 <800 9,400 780 J <81 ƚ 4,100 210 700 790 520 38,000 3,900 1,000 22,700 BMDL 05/03/23 4,300 J 30,000 2,700 J 890 3,700 190 J 77,000 800 450 J 59,000 2,900 650 18,400 BMDL 05/03/23 2.6 J <0.18 <1.7 <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). < = Less than method detection limit 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. Shaded results indicate concentrations above GCL. 2L GWQS = NCAC T15A:02L Groundwater Quality Standards GCL = Gross Contaminant Level ƚ = The method detection limit is above the 2L GWQS. J = Detected but below the Reporting Limit (lowest calibration standard); result is an estimated concentration (CLP J-Flag).EthylbenzeneWell/ Sample ID AcetoneMW-4 2-Butanone (MEK)Field Blank GCL (µg/L) 2L GWQS (µg/L) 5,000 1 Total Xylenes80,000 600 30,500 70 20,000 20 50,000 500Diisopropyl Ether (DIPE)70,000 70 1,3,5-TrimethylbenzeneIsopropylbenzene (Cumene)MW-14 MW-1 Contaminant of Concern Benzene6,000,000 6,000 Varies Varies 6,000 6 26,100 70 260,000 600 28,500 400 24,100 400 4,000,000 4,000 All Other SM 6200B AnalytesToluene1,2,4-Trimethylbenzenen-PropylbenzeneMethyl tert-Butyl Ether (MTBE)Naphthalene NCDEQ; 10873_Little Cubbard; T4_GW Results (SM 6200B) CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 Page 1 of 1 TABLE 5 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B Incident Name and No.: Little Cubbard - 10873 Date Collected (mm/dd/yy) 06/02/21 5,300 J 27,000 3,300 <70 ƚ <50 <75 ƚ 480 2,500 110 J <45 ƚ 34,000 600 270 45,000 2,800 720 20,700 BMDL 12/15/22 <1,000 32,000 <810 90 J <55 100 J 600 4,600 280 <49 ƚ 38,000 850 660 58,000 5,400 1,400 28,700 BMDL 05/03/23 2,300 J 30,000 1,200 J <60 <51 <64 ƚ 470 2,700 160 J <51 ƚ 28,000 870 380 44,000 3,200 740 18,300 BMDL 06/02/21 12 J 420 <9.4 2.4 J 2.0 J <0.75 ƚ 6.0 3.3 11 0.7 J 22 <0.75 3.0 2.8 52 7.4 108 BMDL 06/02/21 1,400 J 8,800 780 J 96 J <40 <60 ƚ <60 4,000 190 J <36 ƚ 510 960 490 45,000 4,300 1,000 24,100 BMDL 12/15/22 <1,000 8,400 <810 770 380 <85 ƚ <64 9,200 900 180 J 1,000 2,800 3,000 49,000 19,000 5,600 50,000 BMDL 05/03/23 <800 9,400 780 J <60 <51 <64 ƚ <81 ƚ 4,100 210 <51 ƚ 700 790 520 38,000 3,900 1,000 22,700 BMDL 06/02/21 2.8 J <0.13 <1.9 <0.14 <0.10 <0.15 ƚ <0.15 <0.090 <0.10 <0.090 <0.17 <0.15 <0.080 <0.11 <0.10 <0.10 <0.27 BMDL 06/02/21 3.9 J <0.13 <1.9 <0.14 <0.10 <0.15 ƚ <0.15 <0.090 <0.10 <0.090 <0.17 <0.15 <0.080 <0.11 <0.10 <0.10 <0.27 BMDL 05/03/23 4,300 J 30,000 2,700 J <150 ƚ <130 ƚ <160 ƚ 890 3,700 190 J <130 ƚ 77,000 800 450 J 59,000 2,900 650 18,400 BMDL All results in micrograms per liter (µg/L). < = Less than method detection limit 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. Shaded results indicate concentrations above GCL. 2L GWQS = NCAC T15A:02L Groundwater Quality Standards GCL = Gross Contaminant Level ƚ = The method detection limit is above the 2L GWQS. J = Detected but below the Reporting Limit (lowest calibration standard); result is an estimated concentration (CLP J-Flag). 8,80070 1,2-Dibromoethane (EDB)500.02 Total XylenesAll Other SM 6200B AnalytesDiisopropyl Ether (DIPE)EthylbenzeneIsopropylbenzene (Cumene)p-Isopropyltoluene (p-Cymene)Methyl tert-Butyl Ether (MTBE)Naphthalene VariesVaries70,000 70 80,000600 30,50070 11,70025 n-PropylbenzeneToluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneContaminant of Concern AcetoneBenzene2-Butanone (MEK)n-ButylbenzeneWell/ Sample ID sec-ButylbenzeneMW-1 5,900 70 MW-2 MW-9 MW-11 GCL (µg/L) 2L GWQS (µg/L) 6,000,000 6,000 5,0001 4,000,0004,000 MW-4 MW-14 24,100400 50,00050020,000 20 6,0006 26,10070 260,000600 28,500400 NCDEQ; 10873_Little Cubbard; T5_Historical GW CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 FIGURES FIGUREPROJECTTITLE 1SITE VICINITY MAP SITE LOCATION U S H W Y 64US 74 ALTCopyright:© 2013 National Geographic Society, i-cubed 2,000 0 2,000 4,0001,000 Feet ³ LITTLE CUBBARD137 US HWY 64RUTHERFORDTON, NC INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10873221064MAY 2023 AS SHOWN KMC/BJA FIGUREPROJECTTITLE 2POTENTIAL RECEPTOR MAP SITE LOCATION 1 ,5 0 0 F EET RADIUS 500F E ET RADIUS US HWY 64 US 74 ALTSource: Esri, Maxar, Earthstar Geographics, and the GIS User Community 500 0 500 1,000250 Feet ³ LITTLE CUBBARD137 US HWY 64RUTHERFORDTON, NC INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10873221064MAY 2023 AS SHOWN KMC/BJA FIGUREPROJECTTITLE 3SITE MAP !>!(>!> !>!>!> !>!>!>!>!> !> !>US HWY 64MW-9 MW-3(CNL) MW-4MW-6 MW-7(CNL)MW-1 TW-1 MW-2 MW-11 MW-5 MW-8 MW-12 APPROXIMATE LOCATIONOF FORMER UST BASIN MW-14 Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 60 0 60 12030 Feet ³ LITTLE CUBBARD137 US HWY 64RUTHERFORDTON, NC INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10873221064MAY 2023 AS SHOWN KMC/BJA NOTES: 1. Well and tank locations were obtained from previous reports prepared by other consultants and are approximate.2. The site has been razed; on-site structures shown on the map are not currently present. Parcel Boundary Monitoring Well (Type II)!> LEGEND Destroyed Monitoring Well (Deep)!(>Destroyed Monitoring Well (Type II)!>Approximate Locationof Former Pump Island 3. CNL = Could Not Locate4. MW-10 and MW-13 were destroyed and the locations are unkown. FIGUREPROJECTTITLE 4GROUNDWATER ELEVATION –MAY 3, 2023 !> !>!> !> !> !><US HWY 64MW-9 MW-4(993.50) MW-1(996.24) MW-2 MW-11 MW-14(995.07)994.00994.50995.00995.50Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 50 0 50 10025 Feet ³ LITTLE CUBBARD137 US HWY 64RUTHERFORDTON, NC INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10873221064MAY 2023 AS SHOWN KMC/BJA NOTES: 1. Well and tank locations were obtained from previous reports prepared by other consultants and are approximate.2. The groundwater elevation contour interval is 0.50 feet. Parcel Boundary Monitoring Well(Type II)!> LEGEND Gauged MonitoringWell (Type II)!> Approximate Locationof Former Pump Island Groundwater Flow Direction<Groundwater Elevation (Feet)(##) Groundwater Contour FIGUREPROJECTTITLE 5 MONITORING WELLGROUNDWATER SAMPLEANALYTICAL RESULTS –MAY 3, 2023 !> !>!> !> !> !>US HWY 64MW-9 MW-4 MW-1 MW-2 MW-11 MW-14 ESTIMATED HORIZONTALEXTENT OF GCLEXCEEDANCES ESTIMATED HORIZONTALEXTENT OF 2L GWQSEXCEEDANCES ?? ??Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 50 0 50 10025 Feet ³ LITTLE CUBBARD137 US HWY 64RUTHERFORDTON, NC INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10873221064MAY 2023 AS SHOWN KMC/BJA NOTE: Well and tank locations were obtained from previous reports prepared by other consultants and are approximate. Parcel Boundary Monitoring Well(Type II)!> LEGEND Sampled MonitoringWell (Type II)!> Approximate Locationof Former Pump Island Incident Name and No.: Little Cubbard - 10873 DateCollected 05/03/23 30,000 470 2,700 160 J 28,000 870 380 44,000 3,200 740 18,30005/03/23 9,400 <81 ƚ 4,100 210 700 790 520 38,000 3,900 1,000 22,70005/03/23 30,000 890 3,700 190 J 77,000 800 450 J 59,000 2,900 650 18,400 All results in micrograms per liter (µg/L).B o ld results are above 2L GWQS. Refer to Table 4 for all results and notes. Shaded results are above GCL. 50,00050028,500400260,00060030,50070 20,000 20 6,0006 26,10070 MW-14 24,100400 SampleID 70,000 70 80,000600 MW-1 Diisopropyl Ether (DIPE)Ethylbenzene5,0001BenzeneGCL (µg/L)2L GWQS (µg/L) MW-4 SUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B Methyl tert-Butyl Ether (MTBE)Naphthalene n-PropylbenzeneToluene1,3,5-TrimethylbenzeneTotal XylenesIsopropylbenzene (Cumene)Contaminant of Concern 1,2,4-Trimethylbenzene NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 APPENDICES NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 APPENDIX A HISTORICAL DATA Page 2 of 9Table 2Summary of Current and Historical Groundwater Analytical ResultsLittle Cubbard137 US Highway 65Ruth, Rutherford County, North CarolinaNCDEQ Incident: 10873NCDEQ Contract: N17006Volatile Organic Compounds by Standard Method 6200B or equivalentAcetoneBenzeneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChlorodibromoethaneChloroform1,2-Dibromoethane1,2-DichloroethaneDiisopropyl etherEthylbenzeneIsopropylbenzenep-IsopropyltolueneMethyl butyl ketoneMethyl ethyl ketoneMethyl tert butyl etherNaphthalenen-PropylbenzeneStyreneToluene1,2,4-Trimethlybenzene1,3,5-TrimethlybenzeneTotal XylenesNC2LGWQS 600010.670700.470 0.02 0.470600702540 4,000 2067070600 400 400 500GCL 6,000,000 5,000 NE 6,900 8,500 400 70,000 50400 70,000 84,500 25,000 11,700 40,000 4,000,000 20,000 6,000 30,000 70,000 260,000 28,500 25,000 85,50004/18/95---52,000---------------ND---ND6,000------------104,000ND------69,000------35,00008/09/95---48,000---------------ND---ND4,800------------145,0001,200--- ---53,000--- ---24,90011/10/96---49,000---------------ND--- <1,0003,400------------100,000ND------64,000------22,00003/20/96---51,000---------------ND---1,000 3,900------------79,000ND------62,000------19,00006/27/96---58,000---------------ND---1,400 3,100------------130,000ND------54,000------19,00004/11/02Insufficient Volume of Groundwater; Well Not Sampled10/10/02Insufficient Volume of Groundwater; Well Not Sampled07/15/03Free Product; Well Not Sampled06/25/15---15,000------ <0.05 ------ <0.2529.6 127 4,390 253---------6,690 792 63537.644,700 4,470 1,110 22,55005/06/19<12,0007,700<120 <120 <120 <120 <120 <120 <120 <1204,300 280<120 <1,200 <1,2002,300 1,700 760<12028,000 5,500 1,300 22,90012/06/19---9,100<125 <125 <125 <125 <125 <125 <125 <1253,250 247--- --- ---3,820 790 581<12525,700 3,970 994 17,12004/18/95---480--- --- --- --- --- ND --- ND12--- --- --- ---33--- --- ---38--- ---37008/09/95---520--- --- --- --- --- ND --- ND10--- --- --- ---10--- --- ---34--- ---14211/10/95---540--- --- --- --- --- ND ---5.0 10--- --- --- ---ND--- --- ---39--- ---43003/20/96---460--- --- --- --- --- ND ---6.0 15--- --- --- ---ND--- --- ---47--- ---30006/27/96---640--- --- --- --- --- ND --- ND9.0--- --- --- ---11--- --- ---32--- ---50004/11/02Insufficient Volume of Groundwater; Well Not Sampled10/10/02Insufficient Volume of Groundwater; Well Not Sampled07/15/03---65---------------------ND1.2------------11ND------2.7------10006/25/15---308------ <0.5------<0.251.53.000 1.33.2---------3.0 <0.5 1.2<0.55.99.72.2 72.305/06/19 13 J<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <5.0 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.504/18/95---11,000---------------ND---170 2,070------------210ND------11,800------10,80008/09/95---1,280---------------4.0---49330------------1266------1,240------1,68011/10/96---5.0---------------ND---ND2.0------------NDND------5.0------1003/20/96---ND---------------ND---NDND------------NDND------ND------ND06/26/96---ND---------------ND---NDND------------NDND------ND------6.004/11/02Insufficient Volume of Groundwater; Well Not Sampled10/10/02Insufficient Volume of Groundwater; Well Not Sampled07/15/03---ND---------------------ND3.0------------NDND------5.4------5.806/25/15---8.4------ <0.5------ <0.25 <0.5 <0.58.3 0.58---------<0.5 <0.50.94<0.59.6<0.5 <0.58.605/06/19<500.53<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.501.7 0.21 J<0.50 <5.0 <5.0 <0.50 <2.00.35 J<0.500.94<0.500.31 J 2.004/18/95Free Product; Well Not Sampled08/09/95Free Product; Well Not Sampled11/10/96Free Product; Well Not Sampled03/20/96Free Product; Well Not Sampled06/26/96---27,000---------------ND---ND3,700------------NDND------50,000------17,00004/11/02Insufficient Volume of Groundwater; Well Not Sampled10/10/02Insufficient Volume of Groundwater; Well Not Sampled07/15/03Free Product; Well Not Sampled06/25/15Free Product; Well Not Sampled05/06/19<2,50015,000<2562 32<25 <2530<25685,500 24016 J220 J360470 600 66023 J62,000 4,800 1,300 24,80012/06/19No Sample Collected - Well Access Obstructed04/18/95--- ND --- --- --- --- --- ND --- ND ND --- --- --- --- ND ND --- --- ND --- --- ND08/09/95---ND---------------ND---NDND------------NDND------ND------ND11/10/96Insufficient Volume of Groundwater; Well Not Sampled03/20/96Insufficient Volume of Groundwater; Well Not Sampled06/26/96Insufficient Volume of Groundwater; Well Not Sampled04/11/02Well Not Located06/25/15Well DestroyedMW-5MW-1MW-2MW-3MW-4Sample DateSample IDAPPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064CATLIN Engineers and Scientists May 2023 Page 3 of 9Table 2Summary of Current and Historical Groundwater Analytical ResultsLittle Cubbard137 US Highway 65Ruth, Rutherford County, North CarolinaNCDEQ Incident: 10873NCDEQ Contract: N17006Volatile Organic Compounds by Standard Method 6200B or equivalentAcetoneBenzeneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChlorodibromoethaneChloroform1,2-Dibromoethane1,2-DichloroethaneDiisopropyl etherEthylbenzeneIsopropylbenzenep-IsopropyltolueneMethyl butyl ketoneMethyl ethyl ketoneMethyl tert butyl etherNaphthalenen-PropylbenzeneStyreneToluene1,2,4-Trimethlybenzene1,3,5-TrimethlybenzeneTotal XylenesNC2LGWQS 600010.670700.470 0.02 0.470600702540 4,000 2067070600 400 400 500GCL 6,000,000 5,000 NE 6,900 8,500 400 70,000 50400 70,000 84,500 25,000 11,700 40,000 4,000,000 20,000 6,000 30,000 70,000 260,000 28,500 25,000 85,500Sample DateSample ID04/18/95---1,180--- --- --- --- --- ND ---18 100--- --- --- ---35ND --- ---1,380--- ---48008/09/95---290--- --- --- --- --- ND ---14 48--- --- --- ---7.0ND --- ---510--- ---11011/10/96---660--- --- --- --- --- ND --- ND71--- --- --- ---NDND --- ---810--- ---35003/20/96---1,100--- --- --- --- --- ND --- ND150--- --- --- ---81ND --- ---1,900--- ---65006/26/96---840--- --- --- --- --- ND ---13 110--- --- --- ---ND120--- ---1,100--- ---52004/11/02Insufficient Volume of Groundwater; Well Not Sampled10/10/02Insufficient Volume of Groundwater; Well Not Sampled07/15/03 --- 100 --- ------ --- --- --- ---6.7 39--- --- --- ---117.1--- ---200--- ---23006/25/15--- <0.5 --- --- <0.5 --- --- <0.25 <0.5<0.5 <0.5 <0.5 --- --- --- <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.505/06/19 15 J<0.507.6<0.50 <0.500.6832<0.50 <0.5010<0.50 <0.50 <0.50 <5.0 <5.0 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.504/18/95---7,620---------------ND---50200------------1,370ND------3,450------1,28008/09/95---3,600---------------ND---94320------------900ND------3,000------2,60011/10/96---2,800---------------ND---ND160------------420ND------1,900------1,50003/20/96---2,900---------------ND---73170------------1,500ND------2,000------2,20006/27/96---6,800---------------ND---ND400------------4,400ND------5,500------3,70004/11/02Insufficient Volume of Groundwater; Well Not Sampled10/10/02Insufficient Volume of Groundwater; Well Not Sampled07/15/03---ND---------------------100ND------------2,000ND------ND------5106/25/15--- <0.5------ <0.5------ <0.250.687.5<0.5 <0.5---------741<0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.505/06/19<50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.500.6810 0.26 J<0.50 <0.50 <5.0 <5.0690<2.0 <0.50 <0.50 <0.50 <0.500.31 J<1.512/06/19--- <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.54.6<2.5 <2.5---------511<10.0 <2.5 <2.5 <2.5 <2.5 <2.5 <7.504/18/95---ND---------------ND---NDND------------NDND------ND------ND08/09/95---ND---------------ND---NDND------------NDND------ND------ND11/10/95---ND---------------ND---NDND------------NDND------1.0------1003/20/96---ND---------------ND---NDND------------NDND------ND------ND06/27/96---ND---------------ND---NDND------------NDND------ND------ND04/11/02Insufficient Volume of Groundwater; Well Not Sampled10/10/02Insufficient Volume of Groundwater; Well Not Sampled07/15/03---ND--------------- <0.25 ---NDND------------NDND------ND------ND06/25/15Well Not Located04/18/95---ND---------------ND---NDND------------NDND------ND------ND08/09/95---ND---------------ND---NDND------------NDND------ND------ND11/10/96---ND---------------ND---NDND------------NDND------ND------ND03/20/96---ND---------------ND---NDND------------NDND------ND------ND06/26/96---ND---------------ND---NDND------------NDND------ND------ND04/11/02---ND---------------------NDND------------NDND------ND------ND10/10/02---ND---------------------NDND------------NDND------ND------ND07/15/03---ND---------------------NDND------------NDND------ND------ND06/25/15--- <0.5------ <0.5--------- <0.5 <0.5 <0.5 <0.5--------- <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.505/06/19 10 J<0.507.5<0.50 <0.501.831<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <5.0 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <1.504/18/95---ND---------------ND---NDND------------NDND------ND------ND08/09/95---ND---------------ND---NDND------------NDND------ND------ND11/10/96---ND---------------ND---NDND------------NDND------ND------ND03/20/96---ND---------------ND---NDND------------NDND------ND------ND06/26/96---ND---------------ND---NDND------------NDND------ND------ND04/11/02Well Not Located06/25/15Well DestroyedMW-10MW-8MW-9MW-6MW-7APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064CATLIN Engineers and Scientists May 2023 Page 4 of 9Table 2Summary of Current and Historical Groundwater Analytical ResultsLittle Cubbard137 US Highway 65Ruth, Rutherford County, North CarolinaNCDEQ Incident: 10873NCDEQ Contract: N17006Volatile Organic Compounds by Standard Method 6200B or equivalentAcetoneBenzeneBromodichloromethanen-Butylbenzenesec-ButylbenzeneChlorodibromoethaneChloroform1,2-Dibromoethane1,2-DichloroethaneDiisopropyl etherEthylbenzeneIsopropylbenzenep-IsopropyltolueneMethyl butyl ketoneMethyl ethyl ketoneMethyl tert butyl etherNaphthalenen-PropylbenzeneStyreneToluene1,2,4-Trimethlybenzene1,3,5-TrimethlybenzeneTotal XylenesNC2LGWQS 600010.670700.470 0.02 0.470600702540 4,000 2067070600 400 400 500GCL 6,000,000 5,000 NE 6,900 8,500 400 70,000 50400 70,000 84,500 25,000 11,700 40,000 4,000,000 20,000 6,000 30,000 70,000 260,000 28,500 25,000 85,500Sample DateSample ID04/18/95---3.0--- --- --- --- --- ND --- ND ND --- --- --- --- ND ND --- ---4.0--- --- ND08/09/95---3.0--- --- --- --- --- ND --- ND ND --- --- --- --- ND ND --- --- ND --- --- ND11/10/96---5.0--- --- --- --- --- ND --- ND ND --- --- --- --- ND ND --- ---2.0--- --- ND03/20/96---7.0--- --- --- --- --- ND --- ND ND --- --- --- --- ND ND --- ---3.0--- --- ND06/26/96Insufficient Volume of Groundwater; Well Not Sampled04/11/02--- ND --- --- --- --- --- --- --- ND ND --- --- --- --- ND ND --- ---1.0--- --- ND10/10/02---1.0--- --- --- --- --- --- --- ND ND --- --- --- --- ND ND --- ---2.2--- --- ND07/15/03---1.9--- --- --- --- --- --- --- ND ND--- --- --- --- ND ND --- --- ND --- --- ND06/25/15--- <0.5 --- --- <0.5 --- --- --- <0.5 <0.50.61<0.5 --- --- --- <0.5 <0.5 <0.5 <0.50.54<0.5 <0.5 <0.505/06/19<50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <5.0 <0.50 <2.0 <0.50 <0.50<0.50<0.50 <0.50 <1.504/18/95--- ND --- --- --- --- --- ND --- ND ND --- --- --- --- ND ND --- --- ND --- --- ND08/09/95---ND---------------ND---NDND------------NDND------ND------ND11/10/96---ND---------------ND---NDND------------NDND------ND------ND03/20/96---ND---------------ND---NDND------------NDND------ND------ND06/26/96---ND---------------ND---NDND------------NDND------ND------ND04/11/02Insufficient Volume of Groundwater; Well Not Sampled10/10/02Insufficient Volume of Groundwater; Well Not Sampled07/15/03---ND---------------------NDND------------NDND------ND------ND06/25/15Well Not Located04/18/95---ND---------------ND---NDND------------NDND------ND------ND08/09/95Insufficient Volume of Groundwater; Well Not Sampled11/10/96Insufficient Volume of Groundwater; Well Not Sampled03/20/96---ND---------------ND---NDND------------NDND------ND------ND06/27/96Well Not Located04/11/02Well Not Located06/25/15Well Destroyed04/18/95---1,930---------------ND---ND70------------190ND------1,900------24008/09/95---40,000---------------ND---800 6,000------------205,000500--- ---42,000--- ---28,00011/10/95---880--- --- --- --- --- ND ---6.0 180--- --- --- ---240 55------1,400------1,30003/20/96---1,400---------------ND---9.0 210------------320 320------2,700------1,40006/27/96---720---------------ND---ND52------------NDND------1,700------70004/11/02Free Product; Well Not Sampled10/10/02Free Product; Well Not Sampled07/15/03Free Product; Well Not Sampled06/25/15---503------16.4--------- <0.5 <0.5405 89.5---------302 264 162<0.53281,040<0.51,75505/06/19<5,000410<50 <50 <50 <50 <50 <50 <50 <50720 140<50 <500 <500 <50560 400<501,300 2,700 770 3,65012/06/19---1,120<25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0 <25.0840 79.8---------868 228 174<25.04,690 1,320 417 4,920Notes:All results presented in micrograms per liter or mg/LCompounds not listed were not detected at concentrations greater than laboratory method reporting limitsNC2LGWQS - North Carolina 2L Groundwater Quality Standard GCL - Gross Contamination LevelsND - Not Detected --- - Not Analyzed or previously reportedValue = concentration exceeds laboratory method reporting limitValue= concentration exceeds NC2LGWQSValue= concentration exceeds GCLTW-1MW-12MW-13MW-11APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064CATLIN Engineers and Scientists May 2023 APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 APPENIDIX A HISTORICAL DATA (NCDEQ; 2015) NCDEQ; 10873_Little Cubbard; AppA CATLIN Project No. 221064 CATLIN Engineers and Scientists July 2021 APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 APPENDIX A HISTORCIAL DATA NCDEQ; 10873_Little Cubbard CATLIN Project No. 221064 CATLIN Engineers and Scientists May 2023 NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 APPENDIX B SITE PHOTOGRAPHS APPENDIX B SITE PHOTOGRAPHS – MARCH 1, 20, 24 AND MAY 3, 2023 NCDEQ; 10873_Little Cupboard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 View of the site, facing northeast. View of the site, facing southwest. APPENDIX B SITE PHOTOGRAPHS – MARCH 1, 20, 24 AND MAY 3, 2023 NCDEQ; 10873_Little Cupboard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 View of rig set up on MW-14, facing west. View of completed MW-14, facing west. APPENDIX B SITE PHOTOGRAPHS – MARCH 1, 20, 24 AND MAY 3, 2023 NCDEQ; 10873_Little Cupboard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 View of MMPE set-up, facing northwest. View of MMPE trailer, facing west. APPENDIX B SITE PHOTOGRAPHS – MARCH 1, 20, 24 AND MAY 3, 2023 NCDEQ; 10873_Little Cupboard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 View of MMPE set-up with MW-4 in the foreground, facing southwest. View of MW-14 MMPE set-up, facing southwest. MW-4 APPENDIX B SITE PHOTOGRAPHS – MARCH 1, 20, 24 AND MAY 3, 2023 NCDEQ; 10873_Little Cupboard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 View of MW-1 MMPE set-up, facing northwest. View of TerraNova tanker pumping recovered fluids at conclusion of MMPE, facing north. APPENDIX B SITE PHOTOGRAPHS – MARCH 1, 20, 24 AND MAY 3, 2023 NCDEQ; 10873_Little Cupboard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 View of site after MMPE equipment broken down, facing west. View of the site prior to the groundwater sampling event, facing west-northwest. APPENDIX B SITE PHOTOGRAPHS – MARCH 1, 20, 24 AND MAY 3, 2023 NCDEQ; 10873_Little Cupboard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 View of MW-1, facing southwest. View of MW-4, facing south. APPENDIX B SITE PHOTOGRAPHS – MARCH 1, 20, 24 AND MAY 3, 2023 NCDEQ; 10873_Little Cupboard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 View of MW-14, facing south. NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 APPENDIX C JOB HAZARD ANALYSES, SURVEY NOTES, 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 7:45 8:45 8:45 9:00 9:00 16:00 16:00 16:30 16:30 16:45 16:45 17:15 Date and Time: 03/01/23 @ 09:00 03/01/23 @ 09:00 03/01/23 @ 09:00Sandra Miller / CATLIN Equipment Used:PPE D/Oil-Water Interface Probe/Sampling Supplies/Generator/Pressure Washer/PID PERSONNEL ONSITE Name and Company (Print)Signature Logan Hamilton / CATLIN Logan Hamilton Tommy Chalmers / CATLIN CATLIN departs site for hotel and completion of today's notes. Snakes surroundings Poison Plants (Ivy, Oak, and/or Sumac)surroundings DAILY TASK Vehicle #55 Mileage:Start: End: Mob and travel to Little Cubbard site (from Carson Property site). On-site Health and Safety Meeting covering proper PPE, weather, road safety, and rig precautions. Set up, drilled with smaller augers and collected soil samples, went down with larger augers for 4" well installation, installed 4"-diameter casing/screen, deconned equipment, and developed well. Final construcion of new well and well pad completed after drillers went to get supplies. Developed well. Surveyed MW-14 using known elevation from MW-1. Final deconning and cleanup of site. Packed augers back on rig in preparation for traveling. 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)Unlikely 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: 03/01/2023 Employee Certifying this JHA Print Name: Benjamin J. Ashba, P.G.Signature: Weather:High overcast, breezy, mid-60's Potential Chemicals Concentration BENZENE ppm Site-Specific Job Hazard Analysis Operational Phase Task/Operation Location Where Task/Operation Performed Monitoring Soil Boring/Well Installation Little Cubbard, Ruth, NC Page 1 of 1 CLIENT'S CATLIN NAME:PROJECT: CATLIN PROJECT #:PHASE: INSTRUMENT #: ELEVATION (TBM):DATE:3/1/2023 ROD #:UNITS (FT./M): FEET TOP BOTTOM4.844.866.426.484.834.87 FIELD NOTES BY:DATE:3/1/2023 INSTRUMENT BY: NOTES REDUCED BY:DATE:3/6/2023 ROD PERSON: HI - (-) = ELEV.* A sketch must be provided with the level notes. S. MILLER L. HAMILTON G. HILL S. MILLER 0.00 (+) = MID at TBM or BM (TOP - BOTTOM) * 100 = DISTANCE TBM + (+) = HI (TOP + BOTTOM)/2 = MID (-) 1028.38 0.00 30 0 1028.38 29 0 28 0 1028.38 0.00 0.00 27 0 1028.38 0.00 1028.38 0.00 26 0 1028.38 25 0 24 0 1028.38 0.00 0.00 23 0 1028.38 0.00 1028.38 0.00 22 0 1028.38 21 0 20 0 1028.38 0.00 0.00 19 0 1028.38 0.00 1028.38 0.00 18 0 1028.38 17 0 16 0 1028.38 0.00 0.00 15 0 1028.38 0.00 1028.38 0.00 14 0 1028.38 13 0 12 0 1028.38 0.00 0.00 11 0 1028.38 0.00 1028.38 0.00 10 0 1028.38 9 0 8 0 1028.38 0.00 0.00 7 0 1028.38 0.00 1028.38 0.00 6 0 1028.38 5 0 MW-1 4 0 1028.38 0.00 6.45 MW-14 3 0 -4 4.85 1023.53 4.85 1023.53 4.85 MW-1 2 240 -6 6.45 1021.93 HI ELEV. (feet)CHECK (T+B)/2 NOTES 1 0 -2 4.85 1028.38 1023.53 POINT ANGLE (degrees) DISTANCE (feet)MID (-)(+) REDUCED LEVEL NOTES NCDEQ - SLP Little Cupboard 221064 BENCH MARK DESC.:MW-1 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 85 dBA Exposure Potential Unlikely Unlikely Unlikely Start Stop 7:45 11:30 11:30 11:45 11:45 15:00 15:00 17:15 Date and Time: 03/20/23 @ 11:45Sandra Miller / CATLIN Equipment Used:PPE D/Oil-Water Interface Probe/Tablet Opened and gauged wells, observed MMPE set-up, noted depths of stingers/vacuum/PID readings, take pictures. Travel to hotel in Waxhaw for next site. PERSONNEL ONSITE Name and Company (Print)Signature On-site health and safety briefing. Watch for cars in driveway and going down the road. Wear safety vest when near road. Watch for ants and spiders when in and around wells. Wear hearing protection and and be careful on and around MMPE equipment. Snakes surroundings Poison Plants (Ivy, Oak, and/or Sumac)surroundings DAILY TASK Truck #55 Mileage:Start: End: Mob and travel to site. Insect bites and stings surroundings Cold Weather Operations Likely Heat (ambient)Unlikely Slips/Trips/Falls Likely Noise Likely Biological Hazards Name of Biological Hazard Source 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: 03-20-23 Employee Certifying this JHA Print Name: Sean O'Neil, PE Signature: Weather:Sunny, breezy, mid 40s Chemical Hazards Potential Chemicals Concentration BENZENE ppm Site-Specific Job Hazard Analysis Operational Phase Task/Operation Location Where Task/Operation Performed Monitoring Mobile Multi-Phase Extraction (MMPE) Start-Up Little Cupboard, Ruth, NC 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 85 dBA Exposure Potential Unlikely Unlikely Unlikely Start Stop 7:30 11:15 11:15 11:30 11:30 13:45 13:45 19:15 Date and Time: 03/24/23 @ 11:30Sandra Miller / CATLIN Equipment Used:PPE D/Oil-Water Interface Probe/Tablet Observed MMPE final stages and collected notes/data from AE, observed liquid pump-off by TerraNova (890 gal), observed MMPE breakdown, closed wells, took pictures. Travel to Raleigh office via Lexington to check on presence of equipment left on site several weeks ago, gas for truck, demob PERSONNEL ONSITE Name and Company (Print)Signature DAILY TASK Truck #55 Mileage:Start: End: Mob and travel to site. On-site health and safety briefing. Watch for cars in driveway and going down the road. Wear safety vest when near road. Watch for ants and spiders when in and around wells. Wear hearing protection and and be careful on and around MMPE equipment. Snakes surroundings Poison Plants (Ivy, Oak, and/or Sumac)surroundings Noise Likely Biological Hazards Name of Biological Hazard Source Insect bites and stings surroundings Cold Weather Operations Likely Heat (ambient)Unlikely 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 Chemical Hazards Potential Chemicals Concentration BENZENE ppm ETHYL BENZENE ppm Date(s) this JHA Conducted: 03-24-23 Employee Certifying this JHA Print Name: Sean O'Neil, PE Signature: Weather:Sunny, high 70s Site-Specific Job Hazard Analysis Operational Phase Task/Operation Location Where Task/Operation Performed Monitoring Mobile Multi-Phase Extraction (MMPE) Break-Down Little Cupboard, Ruth, NC 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 Exposure Potential Likely Likely Likely Start Stop 7:15 11:15 11:15 11:30 11:30 14:30 14:30 19:15 Date and Time: 5/3/23 @ 11:30 Equipment Used:PPE D/Oil-Water Interface Probe/Sampling Supplies/Aqua Troll 600/Bailers Van #59 Mileage: Weather: Mob equipment and travel to site On site safety briefing. Watch for ants/spiders near wells. Be aware of slips, trip, and falls. Wear safety vest and watch for trucks and cars. Locate, open, gauge, photograph, and sample wells MW-1, MW-4, and MW-14. Had to wait for recharge on the wells. Field blank collected at 11:52. Biological Hazards Name of Biological Hazard Source Insect bites and stings Cold Weather Operations Unlikely Heat (ambient)Unlikely Slips/Trips/Falls Likely surroundings Finish COC and got PO#, depart site for Raleigh office, ice for samples, gas for van, demob van. Major construction traffic and stop/crawl on I40 due to accident. Start:End: DAILY TASK Snakes surroundings Poison Plants (Ivy, Oak, and/or Sumac)surroundings PERSONNEL ONSITE Name and Company (Print)Signature Sandra Miller / CATLIN Chemical Hazards Sunny, Windy, Low 60's Site-Specific Job Hazard Analysis Location Where Task/Operation Performed Little Cupboard, Ruth, NC Task/Operation Gauge and Sample Wells Employee Certifying this JHA Print Name: Benjamin J. Ashba, P.G.Signature: Operational Phase Monitoring Date(s) this JHA Conducted: 5/3/2023 Potential Chemicals Concentration BENZENE ppm ETHYL BENZENE ppm TOLUENE ppm XYLENE, ALL ISOMERS ppm METHYL TERT-BUTYL ETHER ppm NAPHTHALENE ppm Physical Hazards Name of Physical Hazard Exposure Level/ Potential * Gas and/or Diesel CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: MW-1 3.71 27.29 0.605 NMT 1.816 31 3.027 2 Method:Bailer Purge Start Time:12:34 Required Bails for 3 Well Volumes:8 Purge Stop Time:12:42 Required Bails for 5 Well Volumes:13 Was Well Purged Dry?Yes Number of Bails Removed:5 Sample Time:13:03 Groundwater Removed (gal):1.2 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) 12:31 13.06 207.55 0.05 7.39 26.79 12:32 12.58 149.01 0.05 7.23 27.78 12:33 12.21 120.29 41.98 7.07 28.94 12:34 11.66 139.09 58.61 3.78 29.19 12:35 11.51 144.20 60.78 3.27 29.39 12:36 11.52 139.32 60.91 3.21 29.50 12:37 11.45 138.32 61.78 3.19 29.57 12:38 11.45 134.60 62.53 3.14 29.62 12:39 11.51 127.43 62.35 3.12 29.64 Laboratory:Con-Test Analysis:6200B Laboratory Analysis Information Geochemical Parameters Depth to Water (ft below TOC) GROUNDWATER SAMPLING FORM Water Column (ft below TOC) One Well Volume (gal) Three Well Volumes (gal) Five Well Volumes (gal) NCDEQ-Scott Ryals Monitoring Well Information Sandy Miller 5/3/2023 Little Cubbard 221064.3 Mild turbidity; HCO. Bailed dry twice. waited for recharge to sample. Aqua Troll 600 Turbidity and Additional Sampling Notes Well Diameter (inches) Well Data Well ID Depth to Product (ft below TOC) Total Well Depth (ft) Purging Information Information Volume of Groundwater in Well CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: MW-4 2.86 24.14 0.467 NMT 1.400 27 2.334 2 Method:Bailer Purge Start Time:12:18 Required Bails for 3 Well Volumes:6 Purge Stop Time:12:26 Required Bails for 5 Well Volumes:10 Was Well Purged Dry?Yes Number of Bails Removed:5 Sample Time:12:49 Groundwater Removed (gal):1.2 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) 12:14 12.99 230.27 0.00 7.34 28.12 12:15 12.69 244.98 0.00 7.21 28.13 12:16 11.81 211.19 6.09 7.20 28.45 12:17 11.65 211.34 69.69 2.85 28.99 12:18 11.65 211.88 66.69 2.95 29.05 12:19 11.63 216.33 67.03 3.18 29.12 12:20 11.68 214.67 69.67 3.04 29.15 12:21 11.66 218.56 70.73 3.82 29.17 12:22 11.68 220.55 71.56 4.09 29.23 Laboratory:Con-Test Analysis: Mild turbidity; slightly orange. HCO. Waited for recharge to sample. Laboratory Analysis Information 6200B Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua Troll 600 Turbidity and Additional Sampling Notes 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) NCDEQ-Scott Ryals Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) GROUNDWATER SAMPLING FORM Little Cubbard Sandy Miller 221064.3 5/3/2023 CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: MW-14 8.14 26.86 5.314 NMT 15.941 35 26.569 4 Method:Bailer Purge Start Time:13:13 Required Bails for 3 Well Volumes:67 Purge Stop Time:13 50 Required Bails for 5 Well Volumes:111 Was Well Purged Dry?Yes Number of Bails Removed:53 Sample Time:13:56 Groundwater Removed (gal):12.7 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) 13:29 11.62 267.72 45.45 3.52 25.14 13:30 11.69 267.13 44.86 3.92 25.16 13:31 11.70 269.81 43.60 3.70 25.10 13:32 11.56 280.69 40.78 3.63 25.10 13:33 11.68 274.98 43.18 3.59 25.04 13:34 11.67 275.56 42.46 4.24 25.14 13:35 11.61 284.30 41.30 3.36 24.64 13:36 11.67 282.20 40.66 3.60 24.61 13:37 11.65 284.22 39.89 4.42 24.48 13:38 11.64 286.28 39.77 3.62 24.50 13:39 11.57 291.97 38.36 3.64 24.39 13:40 11.63 288.86 37.94 3.69 24.37 13:41 11.63 290.26 37.33 3.87 24.33 13:42 11.65 291.18 36.82 3.74 23.76 13:43 11.61 294.40 36.27 3.90 23.52 13:44 11.61 294.63 36.06 4.14 23.76 13:45 11.64 292.88 35.78 4.01 23.64 13:46 11.65 290.47 35.73 4.02 23.60 13:47 11.73 281.00 35.84 3.90 24.19 Laboratory:Con-Test Analysis: High turbidity; brownish- red. HCO. Waited for recharge to sample. Laboratory Analysis Information 6200B Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua Troll 600 Turbidity and Additional Sampling Notes 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) NCDEQ-Scott Ryals Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) GROUNDWATER SAMPLING FORM Little Cubbard Sandy Miller 221064.3 5/3/2023 NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 APPENDIX D WELL LOG AND WELL CONSTRUCTION RECORD 35.0 0.0 5.0 10.0 15.0 20.0 25.0 30.0 33.0 3 4 7 6 6 5 5 10 4 1 2 3 3 3 3 0 3 4 4 5 5 5 5 6 2 2 3 4 4 4 3 5 35.0 15.0 35.0 0.0 1.0 13.0 35.04" Sch. 40 PVC4" Slot .010Sch. 40 PVCD D D M M W W W 0.5 18.0 33.0 0.5 18.0 33.0 35.0 ASPHALT (CL) - Dark red grading to reddish brown, Silty CLAY. Mod. HCO Orangish brown and red with black streaks and tr. mica and/or quartz at 10.0' BLS (CL) - Orangish red with black streaks with browns, Sandy CLAY with tr. mica and/or quartz. Mod HCO (SW) - White with tan and black, Cse. SAND with tr. mica and/or quartz BORING TERMINATED AT ELEVATION 986.9 ft in Cse. SAND with quartz fragments 1021.4 1003.9 988.9 1021.4 1003.9 988.9 986.9 47.8 68.6 283 58.7 53.9 113 769 1556 DRILL MACHINE:Diedrich D-50 METHOD:HSA COUNTY:RUTHERFORD 1121616 607849 T.O.C. ELEV.: TOTAL DEPTH: WELL DEPTH: NC SHEET 30.2 27.1 DEPTH 1 1021.93 35.0 35.0 0 HOUR DTW: 24 HOUR DTW:END DATE:3/1/23 OF1 BORING LOCATION: NE corner of Building BLOW COUNT 0.5ft START DATE:3/1/23 0.5ft WELL ID: STATE: MW-14NORTHING: LOGGED BY: DRILLER: CREW: 0.5ft0.5ft EASTING: PROJECT NO.:221064 SYSTEM:NCSP NAD 83 (USft) Little CubbardPROJECT:S. Miller D. T. Chalmers, JR L. Hamilton LOCATION:RUTHERFORDTON ENVIRONMENTAL, CIVILGEOTECHNICAL Wilmington, Raleigh, Washington,Charleston CATLIN BORING LOG 221064_NCDEQ SLP LITTLE CUBBARD.GPJ CATLIN.GDT 3/6/23Portland Cement Bentonite Pellets #2 Medium Sand 0.0 WELL LOG WELL DETAIL SOIL AND ROCK DESCRIPTIONLAB.DEPTH MOIS 0.0 LAND SURFACE LOG ELEVATION 1021.9 OVA (ppm) 221064 03/01/23 HSA 4146A 27.13 MW-14 -81.9474685 D. T. Chalmers, JR 35.384342 RUTHERFORD 1 X 3/6/2023 10.25 Surface Pour CATLIN Engineers and Scientists X 4 Slot .010 137 US Hwy 64, RUTHERFORDTON, 28139 Bent. Pellets13 15 Concrete N/A 13 35 Torpedo Sand 35.0 X 1 1 0 15 35 PVC 4 Sch. 40 Surface Pour 0 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.NCDEQ-Little Cubbard 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 0-009299 N/A NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 APPENDIX E MMPE REPORT AND DISPOSAL DOCUMENTS www.AdvancedEnvironmental.com "Your Environmental Solutions Partner" ADVANCED ENVIRONMENTAL SERVICES, INC. PO Box 38218 Greensboro, NC 27438 (336) 282-3586 advservices@aol.com www.AdvancedEnvironmental.com INVOICE BILL TO Catlin Engineers & Scientists 220 Old Dairy Farm Road Wilmington, NC 28405 SHIP TO Catlin Engineers & Scientists accounts.payable@catlinu sa.com INVOICE #2138 DATE 03/30/2023 DUE DATE 03/30/2023 TERMS Net 45 JOB#; NAME DATES OF SERVICE PO# OR PM Little Cuppard *** 3/2 - 3/24, 2023 ***Ben Ashba, PG TASK DESCRIPTION QTY RATE UNITS AMOUNT 7.420 MMPE system, power supply and mobe 1 2,500.00 week 2,500.00 7.420a Equipment 1 1,500.00 event 1,500.00 7.420c Fluids disposal 890 0.35 gallon 311.50 7.420d Time for MMPE prep., system setup, supervision, operation and maintenance, breakdown and non- mobe travel 1 2,500.00 week 2,500.00 12.030 Per-diem 4 155.00 night 620.00 Thank you for your business! Past due amounts are subject to finance charges of 1.5% per month plus all applicable attorney's collection fees. SUBTOTAL 7,431.50 TAX 0.00 TOTAL 7,431.50 BALANCE DUE $7,431.50 ADVANCED ENVIRONMENTAL SERVICES, INC. “Your Environmental Solutions Partner” MOBILE MULTI-PHASE EXTRACTION REPORT Site Location: Little Cubbard 137 US Hwy 64 Rutherfordton, NC Prepared for: Catlin Engineers and Scientists 220 Old Dairy Rd. Wilmington, NC 28405 PM – Ben Ashba, PG March 28, 2023 TABLE OF CONTENTS EVENT SUMMARY MMPE FIELD LOG MASS-REMOVAL CALCULATION FIELD NOTES DISPOSAL MANIFESTS MOBILE MULTI-PHASE EXTRACTION EVENT SUMMARY March 28, 2023 Location: Little Cubbard 137 US Hwy 64 Rutherfordton, NC Client: Catlin Engineers and Scientists 220 Old Dairy Rd. Wilmington, NC 28405 Event Dates: March 20 - 24, 2023 Advanced Job # 03 - 2316 Advanced Personnel: Lee Heilig and Chad Widner MMPE System: MMPE system rated 140 CFM at 24” hg 4’ discharge stack - 3” diameter 5,000 - gallon tanker 140’ piping 1.0” hose to 3 wells Extraction Well: MW-1, MW-4 and MW-14 Well Initial FP / WL(ft) Final FP / WL(ft) Stinger depth(ft) Run Time / Changed To MW-1 27.26 30.02 29’/30’ 93.0 hours MW-4 24.43 26.43 26’/27’ 93.0 hours MW-14 27.01 33.11 29’/34’ 96.0 hours Description of Event: The MMPE event ran from 13:05 March 20, through 13:05 March 24, 2023. The MMPE system was active for 96.0 hours. During the event vacuum at the recovery pump ranged from 17.0 to 20.5 inches of mercury (hg) and stabilized at approximately 17.0 inches of mercury. Airflow rates ranged from 2,800 to 3,300 feet per minute and stabilized at approximately 3,300 feet per minute. System temperature ranged from 102 – 132 degrees F and humidity maintained 99 percent. Field gauged volatile organic compounds (VOC’s) decreased from 24,000 to 13,000 (PPM) throughout the event. Groundwater / Product Mix Recovered: During the event a total of 890 gallons of product/water mix were removed from the site and properly disposed at a certified North Carolina disposal facility. No measurable free product was recovered during the event. Total fluids recovered, was measured based on stick readings conducted during and following the event. Based on 96.0 hours of operation and a total of 890 gallons recovered, the average groundwater recovery rate was calculated to be approximately 9.27 gallons per hour. Events Results: Based on mass-removal calculations 523.17 pounds or 85.04 gallons of VOC’s were removed as vapor. Using Dwyer Magnehelic gauges, vacuum influence was monitored at MW-2. No measurable vacuum influence was observed throughout the event. No measurable draw down was observed throughout the event. Following the event, no free product was identified in any well. MMPE FIELD LOG: CLIENT: Catlin Engineering JOB NAME: Little Cubbard LOCATION: Rutherfordton, NC MMPE EVENT DATES: March 20 - 24, 2023 EXTRACTION POINTS: MW-1, MW-4 and MW-14 AES JOB NUMBER: 03 - 2316 DATE TIME FLOW (f/m) HUM.(%) TEMP. (F)VOC's(ppm)VAC. (hg")GALLONS STINGER/WL's EXTRACTION POINTS (hg") MW-1 MW-4 MW-14 Start 13:05 Stinger(ft)29'/30'26'/27'29'/34' Initial WL's 27.26 24.43 27.01 03/20/23 13:30 2,800 99 102 24,000 20.5 7.0 7.0 7.0 14:30 2,900 99 107 24,000 20.0 7.0 7.0 7.0 15:30 3,200 99 111 21,000 18.5 6.0 5.5 6.0 17:30 3,200 99 116 21,000 18.0 5.5 5.0 5.5 03/21/23 8:30 3,200 99 118 20,000 18.0 5.5 5.0 5.5 10:30 3,200 99 121 19,000 18.0 5.5 5.0 5.5 17:30 3,200 99 128 18,000 18.0 5.5 5.0 5.5 18:30 3,200 99 126 18,000 18.0 5.5 5.0 5.5 03/22/23 8:15 3,200 99 121 14,000 17.5 225 gal.5.0 5.0 5.0 10:15 3,200 99 122 14,000 17.5 5.0 5.0 5.0 15:45 3,200 99 124 17,000 17.5 5.0 5.0 5.0 17:30 3,300 99 123 17,000 17.5 5.0 5.0 5.0 03/23/23 8:15 3,300 99 125 15,000 17.0 400 gal. 5.0 5.0 5.0 10:15 3,300 99 127 14,000 17.0 5.0 5.0 5.0 16:00 3,300 99 128 14,000 17.0 5.0 5.0 5.0 17:30 3,300 99 123 14,000 17.0 5.0 5.0 5.0 03/24/23 8:15 3,300 99 127 14,000 17.0 525 gal. 5.0 5.0 5.0 11:00 3,000 99 132 13,000 17.0 5.0 5.0 5.0 END 13:05 Total fluids: 890 gal.Final WL's 30.02 26.43 33.11 Total free product:0.0 DATE TIME STINGER/WL's Vacuum Influence Well Gauging (ft) MW-2 MW-2 Start 13:05 03/20/23 28.40 03/21/23 0.00 28.38 03/22/23 0.00 28.39 03/23/23 0.00 28.34 03/24/23 0.00 28.37 END 13:05 Final W/L 28.37 Page 1 of 1 MOBILE MULTI-PHASE EXTRACTION EVENT SITE NAME: Little Cubbard CLIENT: Catlin Engineering INCIDENT NUMBER: AVERAGE DEPTH TO GROUNDWATER: 24 - 27 feet DESCRIBE SOIL IN THE SATURATED ZONE: AVERAGE HYDRAULIC CONDUCTIVITY (if known): EXTRACTION WELLS USED FOR MMPE: MW-1, MW-4 and MW-14 SPECIFICATIONS OF THE MMPE SYSTEM (cfm @ in Hg): 140 cfm @ 24.0"Hg DRY STANDARD CUBIC FEET PER MINUTE (DSCFM) AIR FLOW CALCULATIONS (Qstd) Date Hours Vacuum Velocity Pipe ID Temp Rel Humid Water Water Qstd(inches of Hg)(ft/min)(in)(°F)(%)Vapor (Wt%)Vapor (Vol%)(flow) 3/20/23 24.00 19.25 3025.00 3 109 99.0 0.051 0.076 127 3/21/23 48.00 18.00 3200.00 3 123 99.0 0.093 0.130 124 3/22/23 72.00 17.50 3300.00 3 123 99.0 0.093 0.130 128 3/23/23 96.00 17.00 3300.00 3 128 99.0 0.108 0.148 124 3/24/23 NOTES Qstd = Flow at DSCFM Vacuum = The level of vacuum being applied should be recorded from the MMPE system (inches of Hg) Velocity = The rate at which air flows is measured at the blower discharge piping (anemometer or pitot tube) Pipe ID = The inside diameter of the blower discharge piping (from the MMPE system) Temperature = The temperature of the air stream exiting the blower discharge piping (dry bulb temp., in deg.°F) Relative humidity = The % relative humidity of the air stream exiting the blower discharge piping Bwsw = water vapor % by weight, i.e., pounds of water per pound of dry air, derived from the Psychrometric chart (temp Vs relative humidity) Bws = water vapor % by volume EQUATIONS Bws = (Bwsw/18 lb-mole H20)/[(1/28.84 lb-mole dry air) + (Bwsw/18 lb-mole H2O)] Qstd = (1-Water Vapor) * velocity * (PI * (diameter/24)2) * (528°R/(Temp + 460)) EMISSION CALCULATIONS Elapsed Time Flow PPMmeasured PPMwet PPMdry K PPMconc Cc:m Cc PMRc PMRg PMR (hour)(DSCFM)(ppm)(#C - gas)(mg/dsm3)(lb/dscf)(lb/hour)(lb/hour)(lb) 24 127 22500 22500 24339 1 24339 12144 0.00075815 5.79 6.71 160.94 48 124 18750 18750 21544 1 21544 10750 0.000671095 4.99 5.77 138.47 72 128 15500 15500 17810 1 17810 8886 0.000554772 4.25 4.92 118.05 96 124 14000 14000 16423 1 16423 8194 0.000511565 3.81 4.40 105.72 Total emissions in pounds 523.17 Total emissions as gallons (pounds / 6.152)85.04 NOTES PPMmeasured = Actual measurements (ppm) taken with a OVA or TVA at the blower discharge piping PPMwet = "wet" concentration PPMdry = "dry" concentration K = Number of carbons in calibration gas: (Methane K = 1, or Propane K = 3, or Hexane K = 6) PPMc= PPMv, Volumetric concentration of VOC emissions as carbon, dry basis at STP Cc:m = mg/dsm3, mass concentration of VOC emissions as carbon Mc = 12.01 mg/mg-mole, molecular weight of carbon K3 = 24.07 dsm3/106 mg-mole, mass to volume conversion factor at STP Cc = lb/dcsf, mass concentration of VOC emissions as carbon, dry basis at STP PMRc = lb/hr, pollutant mass removal rate of VOC's as carbon PMRg = lb/hr, pollutant mass removal rate of of VOC's as gasoline PMR = lb, pollutant mass removal of VOC's as gasoline EQUATIONS PPMwet = PPMmeasuredPPMdry = (PPMwet)/(1-Bws) PPMc = (PPMd)(K) Cc:m = (PPMc)(Mc / K3) Cc = (Cc:m)(62.43x10-9 lb-m3/mg-ft3) PMRc = (Cc)(Qstd)(60 minute/hour) PMRg = (PMRc)(Mg/Mcg) PMR = (PMRg)(#hours) I C MMPR. Field Log Went:Cc,f/,'r:J . I SiteName: L i-tflelv. bb,..rof ells: ""w -l M ~-'f, M "" -14 :oS D~ D : bf) Page#_j_ Job J'1nmher. D 3-Z-31 4 Event Dates: 3 (z,,-o-2 '-f f2_oz3 'ov1~ MMPKField Log Went:Ce< t/,·n L_ , SiteName:£...i'ftte. Cl,{bD'-lroi tJ E'Xtlra~•Wells:Mv-1 1V1w-L1 Mw-h "'.2 . 3 / ) _;;;, 22 2. taA , : ' JobNwuber: D3-Z3I r;, EventDates: 3 /-zi~ -2-~/202-3 I I i I l I I I I I I MATERIAL ~p Manifest Document No. Page of MANIFEST TERRA NOVA I / EMERGENCY PHONE NO. POST OFFICE BOX 357 TEL (336) 841-5276 Zebra Job No. • (336) 841-5276 HIGH POINT, NC 27261 FAX (336) 841-5509 2'<01/,./ < . ,"' I GENERATOR INFORMATION I Name r I; US EPA ID No. I I ,,/, Ui'/ I / .(•I/ //'•' / /Y1( ,, ~/1 Street Address Maillng Address Phone No. .. ,/5'-:/ v s /.JIA.)~ l-V l~,.-:1{> .-,,,"71 -L/3'/J ,-""; ' ''.I''\ _) Contact /7 ,/,, { -f:, .r;,;.,,,,1/ ... _,/ ; t, ,j DESCRIPTION OF MATERIALS USDOT Proper Shipping Name Hazard UN/NA Packing Containers Total Unit HM (Complete All Items for Hazardous Materials) Class or Div ID No. Group Qty. Type Quantity Wt.Nol. a. I ;</t'A/ ,;J,., L . r-, • ---TT $() #Jill .--/(' /11,1?,;-) I b. 0 t?' c. ADDITIONAL INFORMATION ERG No. Zebra Profile Code Facility Use a. /)/ j _) -b. I/ --" c. ,,/"_,,/' GENERATOR'S CERTIFICATION This is to certify that the above-described materials are properly classified, described, packaged, marked and labeled, and are in proper condition for transportation according to the applicable regulations of the Department of Transportation. I further certify that non~ of the materials described above are a hazardous waste as defined by EPA 40 CFR Part 261 or any applicable state law, and unless specifically identified above, the materials contain less than 1,000 ppm total halogens and do not contain quantifiable levels (2 ppm) of PCBs as defined by EPA 40 CFR Parts 279 and 761. rinted ype Name _,, 1 ,; . Transporter TN Solutions, Inc. Address 901 East Springfield Road High Point, NC 27263 gnature / _, '/ Mo. Day r. JI--- TRANSPORTER INFORMATION I hereby acknowledge receipt of the above-described materials for transport fr~om the r ene.iJor site listed above. bv / I ;.!, ,., I ~-;:: ,)/ J( -:• ,.~ y'-,t' ', -z _, Slgnaturr £' ,,-, )',J_Lft_, Shipment Date I hereby acknowledge receipt of the above-described materials were received ""'T""ra_n_s-po_rt.,..e_r_o_r -----------r.u-,-n""'lt'"'N""~-----1----,from the generator site and Were transported to the facility listed below. EPA ID No. NCO991302669 \ 1 -I Phone (336) 841-5276 Signature Delivery Date ' FACILITY INFORMATION Facility TN Solutions, Inc. I hereby acknowledge receipt of the materials covered by this manifest except for any discrepancy noted below. Address 901 East Springfield Road High Point, NC 27263 Signature Receipt Date Dlscreoancles / Routlna Codes I Handlna Methods Facility or NCO991302669 a. EPAID No. J Phone (336) 841-5276 b. .. Contact c. C Bill Hunter ,, ORIGINAL· Facility Retain COPY 2 • Return to Generator COPY 3 • Transporter Retain \.COPY 4 • Generator Retain ,fJ -• l I I NCDEQ; 10873_Little Cubbard CATLIN Engineers and Scientists CATLIN Project No. 221064 May 2023 APPENDIX F LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 May 17, 2023 Ben Ashba CATLIN Engineers & Scientists 220 Old Dairy Road Wilmington, NC 28405 Project Location: Ruth, NC Client Job Number: Project Number: 221064.3 Laboratory Work Order Number: 23E0926 Enclosed are results of analyses for samples as received by the laboratory on May 5, 2023. If you have any questions concerning this report, please feel free to contact me. Sincerely, Kaitlyn A. Feliciano Project Manager Page 1 of 25 Table of Contents Table of Contents Sample Summary 3 Hits Only Report 4 Case Narrative 6 Sample Results 7 23E0926-01 7 23E0926-02 9 23E0926-03 11 23E0926-04 13 Sample Preparation Information 15 QC Data 16 Volatile Organic Compounds by GC/MS 16 B340060 16 Flag/Qualifier Summary 20 Certifications 21 Chain of Custody/Sample Receipt 23 Page 2 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 ANALYTICAL SUMMARY 5/17/2023 CATLIN Engineers & Scientists 220 Old Dairy Road Wilmington, NC 28405 ATTN: Ben Ashba 221064.3 23E0926 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 Ruth, NC 230503-3 MW-1 23E0926-01 Ground Water SM21-23 6200B MW-4 23E0926-02 Ground Water SM21-23 6200B MW-14 23E0926-03 Ground Water SM21-23 6200B FB Field Blank 23E0926-04 Field Blank SM21-23 6200B [TOC_1]Sample Summary[TOC] Page 3 of 25 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: Analyte Results/Qual RL Units Method 23E0926-01MW-1 DL 1,2,4-Trimethylbenzene 3200 200 g/L SM21-23 6200B80 1,3,5-Trimethylbenzene 740 200 g/L SM21-23 6200B60 2-Butanone (MEK)1200 2000 g/L SM21-23 6200BJ670 Acetone 2300 20000 g/L SM21-23 6200BJ800 Benzene 30000 200 g/L SM21-23 6200B74 Diisopropyl Ether (DIPE)470 200 g/L SM21-23 6200B81 Ethylbenzene 2700 200 g/L SM21-23 6200B88 Isopropylbenzene (Cumene)160 200 g/L SM21-23 6200BJ60 m+p Xylene 12000 400 g/L SM21-23 6200B200 Methyl tert-Butyl Ether (MTBE)28000 200 g/L SM21-23 6200B68 Naphthalene 870 200 g/L SM21-23 6200B150 n-Propylbenzene 380 200 g/L SM21-23 6200B50 o-Xylene 6300 200 g/L SM21-23 6200B97 Toluene 44000 200 g/L SM21-23 6200B89 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23E0926-02MW-4 DL 1,2,4-Trimethylbenzene 3900 200 g/L SM21-23 6200B80 1,3,5-Trimethylbenzene 1000 200 g/L SM21-23 6200B60 2-Butanone (MEK)780 2000 g/L SM21-23 6200BJ670 Benzene 9400 200 g/L SM21-23 6200B74 Ethylbenzene 4100 200 g/L SM21-23 6200B88 Isopropylbenzene (Cumene)210 200 g/L SM21-23 6200B60 m+p Xylene 15000 400 g/L SM21-23 6200B200 Methyl tert-Butyl Ether (MTBE)700 200 g/L SM21-23 6200B68 Naphthalene 790 200 g/L SM21-23 6200B150 n-Propylbenzene 520 200 g/L SM21-23 6200B50 o-Xylene 7700 200 g/L SM21-23 6200B97 Toluene 38000 200 g/L SM21-23 6200B89 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23E0926-03MW-14 DL 1,2,4-Trimethylbenzene 2900 500 g/L SM21-23 6200B200 1,3,5-Trimethylbenzene 650 500 g/L SM21-23 6200B150 2-Butanone (MEK)2700 5000 g/L SM21-23 6200BJ1700 Acetone 4300 50000 g/L SM21-23 6200BJ2000 Benzene 30000 500 g/L SM21-23 6200B180 Diisopropyl Ether (DIPE)890 500 g/L SM21-23 6200B200 Ethylbenzene 3700 500 g/L SM21-23 6200B220 Isopropylbenzene (Cumene)190 500 g/L SM21-23 6200BJ150 m+p Xylene 12000 1000 g/L SM21-23 6200B490 Methyl tert-Butyl Ether (MTBE)77000 500 g/L SM21-23 6200B170 Naphthalene 800 500 g/L SM21-23 6200B380 n-Propylbenzene 450 500 g/L SM21-23 6200BJ120 o-Xylene 6400 500 g/L SM21-23 6200B240 Toluene 59000 500 g/L SM21-23 6200B220 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23E0926-04FB Field Blank DL Acetone 2.6 50 g/L SM21-23 6200BJ2.0 Page 4 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 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 5 of 25 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 23E0926-01,02+03 due to elevated 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 2,2-Dichloropropane 23E0926-01[MW-1], 23E0926-02[MW-4], 23E0926-03[MW-14], 23E0926-04[FB Field Blank], B340060-BLK1, B340060-BS1, B340060-BSD1 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 Diisopropyl Ether (DIPE) B340060-BSD1 Elevated reporting limit due to high concentration of target compounds. Analyte & Samples(s) Qualified: RL-11 23E0926-01[MW-1], 23E0926-02[MW-4], 23E0926-03[MW-14] 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 6 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 5/5/2023 Work Order: 23E0926Sample Description:Project Location: Ruth, NC Sample ID: 23E0926-01 Field Sample #: MW-1 Sample Matrix: Ground Water Sampled: 5/3/2023 13:03 [TOC_2]23E0926-01[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-11 Volatile Organic Compounds by GC/MS 2300 20000 5/13/23 18:35 MFFg/L800 5/12/23SM21-23 6200B400JAcetone 30000 200 5/13/23 18:35 MFFg/L74 5/12/23SM21-23 6200B400Benzene ND 200 5/13/23 18:35 MFFg/L59 5/12/23SM21-23 6200B400Bromobenzene ND 200 5/13/23 18:35 MFFg/L110 5/12/23SM21-23 6200B400Bromochloromethane ND 200 5/13/23 18:35 MFFg/L63 5/12/23SM21-23 6200B400Bromodichloromethane ND 200 5/13/23 18:35 MFFg/L160 5/12/23SM21-23 6200B400Bromoform ND 800 5/13/23 18:35 MFFg/L530 5/12/23SM21-23 6200B400Bromomethane 1200 2000 5/13/23 18:35 MFFg/L670 5/12/23SM21-23 6200B400J2-Butanone (MEK) ND 200 5/13/23 18:35 MFFg/L60 5/12/23SM21-23 6200B400n-Butylbenzene ND 200 5/13/23 18:35 MFFg/L51 5/12/23SM21-23 6200B400sec-Butylbenzene ND 200 5/13/23 18:35 MFFg/L57 5/12/23SM21-23 6200B400tert-Butylbenzene ND 200 5/13/23 18:35 MFFg/L65 5/12/23SM21-23 6200B400Carbon Tetrachloride ND 200 5/13/23 18:35 MFFg/L48 5/12/23SM21-23 6200B400Chlorobenzene ND 20000 5/13/23 18:35 MFFg/L8100 5/12/23SM21-23 6200B400Ethanol ND 200 5/13/23 18:35 MFFg/L80 5/12/23SM21-23 6200B400Chlorodibromomethane ND 200 5/13/23 18:35 MFFg/L140 5/12/23SM21-23 6200B400Chloroethane ND 200 5/13/23 18:35 MFFg/L56 5/12/23SM21-23 6200B400Chloroform ND 240 5/13/23 18:35 MFFg/L200 5/12/23SM21-23 6200B400Chloromethane ND 200 5/13/23 18:35 MFFg/L62 5/12/23SM21-23 6200B4002-Chlorotoluene ND 200 5/13/23 18:35 MFFg/L62 5/12/23SM21-23 6200B4004-Chlorotoluene ND 200 5/13/23 18:35 MFFg/L64 5/12/23SM21-23 6200B4001,2-Dibromoethane (EDB) ND 200 5/13/23 18:35 MFFg/L52 5/12/23SM21-23 6200B4001,2-Dichlorobenzene ND 200 5/13/23 18:35 MFFg/L55 5/12/23SM21-23 6200B4001,3-Dichlorobenzene ND 200 5/13/23 18:35 MFFg/L51 5/12/23SM21-23 6200B4001,4-Dichlorobenzene ND 200 5/13/23 18:35 MFFg/L64 5/12/23SM21-23 6200B400Dichlorodifluoromethane (Freon 12) ND 200 5/13/23 18:35 MFFg/L55 5/12/23SM21-23 6200B4001,1-Dichloroethane ND 200 5/13/23 18:35 MFFg/L120 5/12/23SM21-23 6200B4001,2-Dichloroethane ND 200 5/13/23 18:35 MFFg/L56 5/12/23SM21-23 6200B4001,1-Dichloroethylene ND 200 5/13/23 18:35 MFFg/L56 5/12/23SM21-23 6200B400cis-1,2-Dichloroethylene ND 200 5/13/23 18:35 MFFg/L69 5/12/23SM21-23 6200B400trans-1,2-Dichloroethylene ND 200 5/13/23 18:35 MFFg/L77 5/12/23SM21-23 6200B4001,2-Dichloropropane ND 200 5/13/23 18:35 MFFg/L46 5/12/23SM21-23 6200B4001,3-Dichloropropane ND 200 5/13/23 18:35 MFFg/L140 5/12/23SM21-23 6200B400L-042,2-Dichloropropane ND 200 5/13/23 18:35 MFFg/L60 5/12/23SM21-23 6200B4001,1-Dichloropropene ND 200 5/13/23 18:35 MFFg/L65 5/12/23SM21-23 6200B400cis-1,3-Dichloropropene ND 200 5/13/23 18:35 MFFg/L57 5/12/23SM21-23 6200B400trans-1,3-Dichloropropene 470 200 5/13/23 18:35 MFFg/L81 5/12/23SM21-23 6200B400Diisopropyl Ether (DIPE) 2700 200 5/13/23 18:35 MFFg/L88 5/12/23SM21-23 6200B400Ethylbenzene ND 2000 5/13/23 18:35 MFFg/L480 5/12/23SM21-23 6200B4002-Hexanone (MBK) 160 200 5/13/23 18:35 MFFg/L60 5/12/23SM21-23 6200B400JIsopropylbenzene (Cumene) ND 200 5/13/23 18:35 MFFg/L51 5/12/23SM21-23 6200B400p-Isopropyltoluene (p-Cymene) 28000 200 5/13/23 18:35 MFFg/L68 5/12/23SM21-23 6200B400Methyl tert-Butyl Ether (MTBE) ND 2000 5/13/23 18:35 MFFg/L71 5/12/23SM21-23 6200B400Methylene Chloride ND 2000 5/13/23 18:35 MFFg/L530 5/12/23SM21-23 6200B4004-Methyl-2-pentanone (MIBK) [TOC_1]Sample Results[TOC] Page 7 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 5/5/2023 Work Order: 23E0926Sample Description:Project Location: Ruth, NC Sample ID: 23E0926-01 Field Sample #: MW-1 Sample Matrix: Ground Water Sampled: 5/3/2023 13:03 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-11 Volatile Organic Compounds by GC/MS 870 200 5/13/23 18:35 MFFg/L150 5/12/23SM21-23 6200B400Naphthalene 380 200 5/13/23 18:35 MFFg/L50 5/12/23SM21-23 6200B400n-Propylbenzene ND 200 5/13/23 18:35 MFFg/L60 5/12/23SM21-23 6200B400Styrene ND 200 5/13/23 18:35 MFFg/L55 5/12/23SM21-23 6200B4001,1,2,2-Tetrachloroethane ND 200 5/13/23 18:35 MFFg/L67 5/12/23SM21-23 6200B400Tetrachloroethylene 44000 200 5/13/23 18:35 MFFg/L89 5/12/23SM21-23 6200B400Toluene ND 400 5/13/23 18:35 MFFg/L140 5/12/23SM21-23 6200B4001,2,3-Trichlorobenzene ND 400 5/13/23 18:35 MFFg/L120 5/12/23SM21-23 6200B4001,2,4-Trichlorobenzene ND 200 5/13/23 18:35 MFFg/L60 5/12/23SM21-23 6200B4001,1,1-Trichloroethane ND 200 5/13/23 18:35 MFFg/L76 5/12/23SM21-23 6200B4001,1,2-Trichloroethane ND 200 5/13/23 18:35 MFFg/L70 5/12/23SM21-23 6200B400Trichloroethylene ND 200 5/13/23 18:35 MFFg/L62 5/12/23SM21-23 6200B400Trichlorofluoromethane (Freon 11) ND 200 5/13/23 18:35 MFFg/L110 5/12/23SM21-23 6200B4001,2,3-Trichloropropane 3200 200 5/13/23 18:35 MFFg/L80 5/12/23SM21-23 6200B4001,2,4-Trimethylbenzene 740 200 5/13/23 18:35 MFFg/L60 5/12/23SM21-23 6200B4001,3,5-Trimethylbenzene ND 8000 5/13/23 18:35 MFFg/L670 5/12/23SM21-23 6200B400Vinyl Acetate ND 200 5/13/23 18:35 MFFg/L95 5/12/23SM21-23 6200B400Vinyl Chloride 12000 400 5/13/23 18:35 MFFg/L200 5/12/23SM21-23 6200B400m+p Xylene 6300 200 5/13/23 18:35 MFFg/L97 5/12/23SM21-23 6200B400o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 94.6 5/13/23 18:3570-130 Toluene-d8 97.8 5/13/23 18:3570-130 4-Bromofluorobenzene 94.2 5/13/23 18:3570-130 Page 8 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 5/5/2023 Work Order: 23E0926Sample Description:Project Location: Ruth, NC Sample ID: 23E0926-02 Field Sample #: MW-4 Sample Matrix: Ground Water Sampled: 5/3/2023 12:49 [TOC_2]23E0926-02[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-11 Volatile Organic Compounds by GC/MS ND 20000 5/13/23 19:01 MFFg/L800 5/12/23SM21-23 6200B400Acetone 9400 200 5/13/23 19:01 MFFg/L74 5/12/23SM21-23 6200B400Benzene ND 200 5/13/23 19:01 MFFg/L59 5/12/23SM21-23 6200B400Bromobenzene ND 200 5/13/23 19:01 MFFg/L110 5/12/23SM21-23 6200B400Bromochloromethane ND 200 5/13/23 19:01 MFFg/L63 5/12/23SM21-23 6200B400Bromodichloromethane ND 200 5/13/23 19:01 MFFg/L160 5/12/23SM21-23 6200B400Bromoform ND 800 5/13/23 19:01 MFFg/L530 5/12/23SM21-23 6200B400Bromomethane 780 2000 5/13/23 19:01 MFFg/L670 5/12/23SM21-23 6200B400J2-Butanone (MEK) ND 200 5/13/23 19:01 MFFg/L60 5/12/23SM21-23 6200B400n-Butylbenzene ND 200 5/13/23 19:01 MFFg/L51 5/12/23SM21-23 6200B400sec-Butylbenzene ND 200 5/13/23 19:01 MFFg/L57 5/12/23SM21-23 6200B400tert-Butylbenzene ND 200 5/13/23 19:01 MFFg/L65 5/12/23SM21-23 6200B400Carbon Tetrachloride ND 200 5/13/23 19:01 MFFg/L48 5/12/23SM21-23 6200B400Chlorobenzene ND 20000 5/13/23 19:01 MFFg/L8100 5/12/23SM21-23 6200B400Ethanol ND 200 5/13/23 19:01 MFFg/L80 5/12/23SM21-23 6200B400Chlorodibromomethane ND 200 5/13/23 19:01 MFFg/L140 5/12/23SM21-23 6200B400Chloroethane ND 200 5/13/23 19:01 MFFg/L56 5/12/23SM21-23 6200B400Chloroform ND 240 5/13/23 19:01 MFFg/L200 5/12/23SM21-23 6200B400Chloromethane ND 200 5/13/23 19:01 MFFg/L62 5/12/23SM21-23 6200B4002-Chlorotoluene ND 200 5/13/23 19:01 MFFg/L62 5/12/23SM21-23 6200B4004-Chlorotoluene ND 200 5/13/23 19:01 MFFg/L64 5/12/23SM21-23 6200B4001,2-Dibromoethane (EDB) ND 200 5/13/23 19:01 MFFg/L52 5/12/23SM21-23 6200B4001,2-Dichlorobenzene ND 200 5/13/23 19:01 MFFg/L55 5/12/23SM21-23 6200B4001,3-Dichlorobenzene ND 200 5/13/23 19:01 MFFg/L51 5/12/23SM21-23 6200B4001,4-Dichlorobenzene ND 200 5/13/23 19:01 MFFg/L64 5/12/23SM21-23 6200B400Dichlorodifluoromethane (Freon 12) ND 200 5/13/23 19:01 MFFg/L55 5/12/23SM21-23 6200B4001,1-Dichloroethane ND 200 5/13/23 19:01 MFFg/L120 5/12/23SM21-23 6200B4001,2-Dichloroethane ND 200 5/13/23 19:01 MFFg/L56 5/12/23SM21-23 6200B4001,1-Dichloroethylene ND 200 5/13/23 19:01 MFFg/L56 5/12/23SM21-23 6200B400cis-1,2-Dichloroethylene ND 200 5/13/23 19:01 MFFg/L69 5/12/23SM21-23 6200B400trans-1,2-Dichloroethylene ND 200 5/13/23 19:01 MFFg/L77 5/12/23SM21-23 6200B4001,2-Dichloropropane ND 200 5/13/23 19:01 MFFg/L46 5/12/23SM21-23 6200B4001,3-Dichloropropane ND 200 5/13/23 19:01 MFFg/L140 5/12/23SM21-23 6200B400L-042,2-Dichloropropane ND 200 5/13/23 19:01 MFFg/L60 5/12/23SM21-23 6200B4001,1-Dichloropropene ND 200 5/13/23 19:01 MFFg/L65 5/12/23SM21-23 6200B400cis-1,3-Dichloropropene ND 200 5/13/23 19:01 MFFg/L57 5/12/23SM21-23 6200B400trans-1,3-Dichloropropene ND 200 5/13/23 19:01 MFFg/L81 5/12/23SM21-23 6200B400Diisopropyl Ether (DIPE) 4100 200 5/13/23 19:01 MFFg/L88 5/12/23SM21-23 6200B400Ethylbenzene ND 2000 5/13/23 19:01 MFFg/L480 5/12/23SM21-23 6200B4002-Hexanone (MBK) 210 200 5/13/23 19:01 MFFg/L60 5/12/23SM21-23 6200B400Isopropylbenzene (Cumene) ND 200 5/13/23 19:01 MFFg/L51 5/12/23SM21-23 6200B400p-Isopropyltoluene (p-Cymene) 700 200 5/13/23 19:01 MFFg/L68 5/12/23SM21-23 6200B400Methyl tert-Butyl Ether (MTBE) ND 2000 5/13/23 19:01 MFFg/L71 5/12/23SM21-23 6200B400Methylene Chloride ND 2000 5/13/23 19:01 MFFg/L530 5/12/23SM21-23 6200B4004-Methyl-2-pentanone (MIBK) Page 9 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 5/5/2023 Work Order: 23E0926Sample Description:Project Location: Ruth, NC Sample ID: 23E0926-02 Field Sample #: MW-4 Sample Matrix: Ground Water Sampled: 5/3/2023 12:49 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-11 Volatile Organic Compounds by GC/MS 790 200 5/13/23 19:01 MFFg/L150 5/12/23SM21-23 6200B400Naphthalene 520 200 5/13/23 19:01 MFFg/L50 5/12/23SM21-23 6200B400n-Propylbenzene ND 200 5/13/23 19:01 MFFg/L60 5/12/23SM21-23 6200B400Styrene ND 200 5/13/23 19:01 MFFg/L55 5/12/23SM21-23 6200B4001,1,2,2-Tetrachloroethane ND 200 5/13/23 19:01 MFFg/L67 5/12/23SM21-23 6200B400Tetrachloroethylene 38000 200 5/13/23 19:01 MFFg/L89 5/12/23SM21-23 6200B400Toluene ND 400 5/13/23 19:01 MFFg/L140 5/12/23SM21-23 6200B4001,2,3-Trichlorobenzene ND 400 5/13/23 19:01 MFFg/L120 5/12/23SM21-23 6200B4001,2,4-Trichlorobenzene ND 200 5/13/23 19:01 MFFg/L60 5/12/23SM21-23 6200B4001,1,1-Trichloroethane ND 200 5/13/23 19:01 MFFg/L76 5/12/23SM21-23 6200B4001,1,2-Trichloroethane ND 200 5/13/23 19:01 MFFg/L70 5/12/23SM21-23 6200B400Trichloroethylene ND 200 5/13/23 19:01 MFFg/L62 5/12/23SM21-23 6200B400Trichlorofluoromethane (Freon 11) ND 200 5/13/23 19:01 MFFg/L110 5/12/23SM21-23 6200B4001,2,3-Trichloropropane 3900 200 5/13/23 19:01 MFFg/L80 5/12/23SM21-23 6200B4001,2,4-Trimethylbenzene 1000 200 5/13/23 19:01 MFFg/L60 5/12/23SM21-23 6200B4001,3,5-Trimethylbenzene ND 8000 5/13/23 19:01 MFFg/L670 5/12/23SM21-23 6200B400Vinyl Acetate ND 200 5/13/23 19:01 MFFg/L95 5/12/23SM21-23 6200B400Vinyl Chloride 15000 400 5/13/23 19:01 MFFg/L200 5/12/23SM21-23 6200B400m+p Xylene 7700 200 5/13/23 19:01 MFFg/L97 5/12/23SM21-23 6200B400o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 107 5/13/23 19:0170-130 Toluene-d8 101 5/13/23 19:0170-130 4-Bromofluorobenzene 94.6 5/13/23 19:0170-130 Page 10 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 5/5/2023 Work Order: 23E0926Sample Description:Project Location: Ruth, NC Sample ID: 23E0926-03 Field Sample #: MW-14 Sample Matrix: Ground Water Sampled: 5/3/2023 13:56 [TOC_2]23E0926-03[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-11 Volatile Organic Compounds by GC/MS 4300 50000 5/13/23 19:28 MFFg/L2000 5/12/23SM21-23 6200B1000JAcetone 30000 500 5/13/23 19:28 MFFg/L180 5/12/23SM21-23 6200B1000Benzene ND 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B1000Bromobenzene ND 500 5/13/23 19:28 MFFg/L280 5/12/23SM21-23 6200B1000Bromochloromethane ND 500 5/13/23 19:28 MFFg/L160 5/12/23SM21-23 6200B1000Bromodichloromethane ND 500 5/13/23 19:28 MFFg/L410 5/12/23SM21-23 6200B1000Bromoform ND 2000 5/13/23 19:28 MFFg/L1300 5/12/23SM21-23 6200B1000Bromomethane 2700 5000 5/13/23 19:28 MFFg/L1700 5/12/23SM21-23 6200B1000J2-Butanone (MEK) ND 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B1000n-Butylbenzene ND 500 5/13/23 19:28 MFFg/L130 5/12/23SM21-23 6200B1000sec-Butylbenzene ND 500 5/13/23 19:28 MFFg/L140 5/12/23SM21-23 6200B1000tert-Butylbenzene ND 500 5/13/23 19:28 MFFg/L160 5/12/23SM21-23 6200B1000Carbon Tetrachloride ND 500 5/13/23 19:28 MFFg/L120 5/12/23SM21-23 6200B1000Chlorobenzene ND 50000 5/13/23 19:28 MFFg/L20000 5/12/23SM21-23 6200B1000Ethanol ND 500 5/13/23 19:28 MFFg/L200 5/12/23SM21-23 6200B1000Chlorodibromomethane ND 500 5/13/23 19:28 MFFg/L340 5/12/23SM21-23 6200B1000Chloroethane ND 500 5/13/23 19:28 MFFg/L140 5/12/23SM21-23 6200B1000Chloroform ND 600 5/13/23 19:28 MFFg/L500 5/12/23SM21-23 6200B1000Chloromethane ND 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B10002-Chlorotoluene ND 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B10004-Chlorotoluene ND 500 5/13/23 19:28 MFFg/L160 5/12/23SM21-23 6200B10001,2-Dibromoethane (EDB) ND 500 5/13/23 19:28 MFFg/L130 5/12/23SM21-23 6200B10001,2-Dichlorobenzene ND 500 5/13/23 19:28 MFFg/L140 5/12/23SM21-23 6200B10001,3-Dichlorobenzene ND 500 5/13/23 19:28 MFFg/L130 5/12/23SM21-23 6200B10001,4-Dichlorobenzene ND 500 5/13/23 19:28 MFFg/L160 5/12/23SM21-23 6200B1000Dichlorodifluoromethane (Freon 12) ND 500 5/13/23 19:28 MFFg/L140 5/12/23SM21-23 6200B10001,1-Dichloroethane ND 500 5/13/23 19:28 MFFg/L300 5/12/23SM21-23 6200B10001,2-Dichloroethane ND 500 5/13/23 19:28 MFFg/L140 5/12/23SM21-23 6200B10001,1-Dichloroethylene ND 500 5/13/23 19:28 MFFg/L140 5/12/23SM21-23 6200B1000cis-1,2-Dichloroethylene ND 500 5/13/23 19:28 MFFg/L170 5/12/23SM21-23 6200B1000trans-1,2-Dichloroethylene ND 500 5/13/23 19:28 MFFg/L190 5/12/23SM21-23 6200B10001,2-Dichloropropane ND 500 5/13/23 19:28 MFFg/L120 5/12/23SM21-23 6200B10001,3-Dichloropropane ND 500 5/13/23 19:28 MFFg/L350 5/12/23SM21-23 6200B1000L-042,2-Dichloropropane ND 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B10001,1-Dichloropropene ND 500 5/13/23 19:28 MFFg/L160 5/12/23SM21-23 6200B1000cis-1,3-Dichloropropene ND 500 5/13/23 19:28 MFFg/L140 5/12/23SM21-23 6200B1000trans-1,3-Dichloropropene 890 500 5/13/23 19:28 MFFg/L200 5/12/23SM21-23 6200B1000Diisopropyl Ether (DIPE) 3700 500 5/13/23 19:28 MFFg/L220 5/12/23SM21-23 6200B1000Ethylbenzene ND 5000 5/13/23 19:28 MFFg/L1200 5/12/23SM21-23 6200B10002-Hexanone (MBK) 190 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B1000JIsopropylbenzene (Cumene) ND 500 5/13/23 19:28 MFFg/L130 5/12/23SM21-23 6200B1000p-Isopropyltoluene (p-Cymene) 77000 500 5/13/23 19:28 MFFg/L170 5/12/23SM21-23 6200B1000Methyl tert-Butyl Ether (MTBE) ND 5000 5/13/23 19:28 MFFg/L180 5/12/23SM21-23 6200B1000Methylene Chloride ND 5000 5/13/23 19:28 MFFg/L1300 5/12/23SM21-23 6200B10004-Methyl-2-pentanone (MIBK) Page 11 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 5/5/2023 Work Order: 23E0926Sample Description:Project Location: Ruth, NC Sample ID: 23E0926-03 Field Sample #: MW-14 Sample Matrix: Ground Water Sampled: 5/3/2023 13:56 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: RL-11 Volatile Organic Compounds by GC/MS 800 500 5/13/23 19:28 MFFg/L380 5/12/23SM21-23 6200B1000Naphthalene 450 500 5/13/23 19:28 MFFg/L120 5/12/23SM21-23 6200B1000Jn-Propylbenzene ND 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B1000Styrene ND 500 5/13/23 19:28 MFFg/L140 5/12/23SM21-23 6200B10001,1,2,2-Tetrachloroethane ND 500 5/13/23 19:28 MFFg/L170 5/12/23SM21-23 6200B1000Tetrachloroethylene 59000 500 5/13/23 19:28 MFFg/L220 5/12/23SM21-23 6200B1000Toluene ND 1000 5/13/23 19:28 MFFg/L340 5/12/23SM21-23 6200B10001,2,3-Trichlorobenzene ND 1000 5/13/23 19:28 MFFg/L300 5/12/23SM21-23 6200B10001,2,4-Trichlorobenzene ND 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B10001,1,1-Trichloroethane ND 500 5/13/23 19:28 MFFg/L190 5/12/23SM21-23 6200B10001,1,2-Trichloroethane ND 500 5/13/23 19:28 MFFg/L170 5/12/23SM21-23 6200B1000Trichloroethylene ND 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B1000Trichlorofluoromethane (Freon 11) ND 500 5/13/23 19:28 MFFg/L280 5/12/23SM21-23 6200B10001,2,3-Trichloropropane 2900 500 5/13/23 19:28 MFFg/L200 5/12/23SM21-23 6200B10001,2,4-Trimethylbenzene 650 500 5/13/23 19:28 MFFg/L150 5/12/23SM21-23 6200B10001,3,5-Trimethylbenzene ND 20000 5/13/23 19:28 MFFg/L1700 5/12/23SM21-23 6200B1000Vinyl Acetate ND 500 5/13/23 19:28 MFFg/L240 5/12/23SM21-23 6200B1000Vinyl Chloride 12000 1000 5/13/23 19:28 MFFg/L490 5/12/23SM21-23 6200B1000m+p Xylene 6400 500 5/13/23 19:28 MFFg/L240 5/12/23SM21-23 6200B1000o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 79.0 5/13/23 19:2870-130 Toluene-d8 103 5/13/23 19:2870-130 4-Bromofluorobenzene 93.8 5/13/23 19:2870-130 Page 12 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 5/5/2023 Work Order: 23E0926Sample Description:Project Location: Ruth, NC Sample ID: 23E0926-04 Field Sample #: FB Field Blank Sample Matrix: Field Blank Sampled: 5/3/2023 11:52 [TOC_2]23E0926-04[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS 2.6 50 5/13/23 12:21 MFFg/L2.0 5/12/23SM21-23 6200B1JAcetone ND 0.50 5/13/23 12:21 MFFg/L0.18 5/12/23SM21-23 6200B1Benzene ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B1Bromobenzene ND 0.50 5/13/23 12:21 MFFg/L0.28 5/12/23SM21-23 6200B1Bromochloromethane ND 0.50 5/13/23 12:21 MFFg/L0.16 5/12/23SM21-23 6200B1Bromodichloromethane ND 0.50 5/13/23 12:21 MFFg/L0.41 5/12/23SM21-23 6200B1Bromoform ND 2.0 5/13/23 12:21 MFFg/L1.3 5/12/23SM21-23 6200B1Bromomethane ND 5.0 5/13/23 12:21 MFFg/L1.7 5/12/23SM21-23 6200B12-Butanone (MEK) ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B1n-Butylbenzene ND 0.50 5/13/23 12:21 MFFg/L0.13 5/12/23SM21-23 6200B1sec-Butylbenzene ND 0.50 5/13/23 12:21 MFFg/L0.14 5/12/23SM21-23 6200B1tert-Butylbenzene ND 0.50 5/13/23 12:21 MFFg/L0.16 5/12/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 5/13/23 12:21 MFFg/L0.12 5/12/23SM21-23 6200B1Chlorobenzene ND 50 5/13/23 12:21 MFFg/L20 5/12/23SM21-23 6200B1Ethanol ND 0.50 5/13/23 12:21 MFFg/L0.20 5/12/23SM21-23 6200B1Chlorodibromomethane ND 0.50 5/13/23 12:21 MFFg/L0.34 5/12/23SM21-23 6200B1Chloroethane ND 0.50 5/13/23 12:21 MFFg/L0.14 5/12/23SM21-23 6200B1Chloroform ND 0.60 5/13/23 12:21 MFFg/L0.50 5/12/23SM21-23 6200B1Chloromethane ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B12-Chlorotoluene ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B14-Chlorotoluene ND 0.50 5/13/23 12:21 MFFg/L0.16 5/12/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 5/13/23 12:21 MFFg/L0.13 5/12/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 5/13/23 12:21 MFFg/L0.14 5/12/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 5/13/23 12:21 MFFg/L0.13 5/12/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 5/13/23 12:21 MFFg/L0.16 5/12/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12) ND 0.50 5/13/23 12:21 MFFg/L0.14 5/12/23SM21-23 6200B11,1-Dichloroethane ND 0.50 5/13/23 12:21 MFFg/L0.30 5/12/23SM21-23 6200B11,2-Dichloroethane ND 0.50 5/13/23 12:21 MFFg/L0.14 5/12/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 5/13/23 12:21 MFFg/L0.14 5/12/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 5/13/23 12:21 MFFg/L0.17 5/12/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 5/13/23 12:21 MFFg/L0.19 5/12/23SM21-23 6200B11,2-Dichloropropane ND 0.50 5/13/23 12:21 MFFg/L0.12 5/12/23SM21-23 6200B11,3-Dichloropropane ND 0.50 5/13/23 12:21 MFFg/L0.35 5/12/23SM21-23 6200B1L-042,2-Dichloropropane ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B11,1-Dichloropropene ND 0.50 5/13/23 12:21 MFFg/L0.16 5/12/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 5/13/23 12:21 MFFg/L0.14 5/12/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 5/13/23 12:21 MFFg/L0.20 5/12/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 5/13/23 12:21 MFFg/L0.22 5/12/23SM21-23 6200B1Ethylbenzene ND 5.0 5/13/23 12:21 MFFg/L1.2 5/12/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 5/13/23 12:21 MFFg/L0.13 5/12/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 5/13/23 12:21 MFFg/L0.17 5/12/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 5/13/23 12:21 MFFg/L0.18 5/12/23SM21-23 6200B1Methylene Chloride ND 5.0 5/13/23 12:21 MFFg/L1.3 5/12/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 13 of 25 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 5/5/2023 Work Order: 23E0926Sample Description:Project Location: Ruth, NC Sample ID: 23E0926-04 Field Sample #: FB Field Blank Sample Matrix: Field Blank Sampled: 5/3/2023 11:52 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 5/13/23 12:21 MFFg/L0.38 5/12/23SM21-23 6200B1Naphthalene ND 0.50 5/13/23 12:21 MFFg/L0.12 5/12/23SM21-23 6200B1n-Propylbenzene ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B1Styrene ND 0.50 5/13/23 12:21 MFFg/L0.14 5/12/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 5/13/23 12:21 MFFg/L0.17 5/12/23SM21-23 6200B1Tetrachloroethylene ND 0.50 5/13/23 12:21 MFFg/L0.22 5/12/23SM21-23 6200B1Toluene ND 1.0 5/13/23 12:21 MFFg/L0.34 5/12/23SM21-23 6200B11,2,3-Trichlorobenzene ND 1.0 5/13/23 12:21 MFFg/L0.30 5/12/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 5/13/23 12:21 MFFg/L0.19 5/12/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 5/13/23 12:21 MFFg/L0.17 5/12/23SM21-23 6200B1Trichloroethylene ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B1Trichlorofluoromethane (Freon 11) ND 0.50 5/13/23 12:21 MFFg/L0.28 5/12/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 5/13/23 12:21 MFFg/L0.20 5/12/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 5/13/23 12:21 MFFg/L0.15 5/12/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 5/13/23 12:21 MFFg/L1.7 5/12/23SM21-23 6200B1Vinyl Acetate ND 0.50 5/13/23 12:21 MFFg/L0.24 5/12/23SM21-23 6200B1Vinyl Chloride ND 1.0 5/13/23 12:21 MFFg/L0.49 5/12/23SM21-23 6200B1m+p Xylene ND 0.50 5/13/23 12:21 MFFg/L0.24 5/12/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 85.4 5/13/23 12:2170-130 Toluene-d8 99.3 5/13/23 12:2170-130 4-Bromofluorobenzene 94.2 5/13/23 12:2170-130 Page 14 of 25 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] B340060 05/12/230.0125 5.0023E0926-01 [MW-1] B340060 05/12/230.0125 5.0023E0926-02 [MW-4] B340060 05/12/230.005 5.0023E0926-03 [MW-14] B340060 05/12/235 5.0023E0926-04 [FB Field Blank] [TOC_1]Sample Preparation Information[TOC] Page 15 of 25 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 B340060 - SW-846 5030B [TOC_3]B340060[TOC] Blank (B340060-BLK1) Prepared: 05/12/23 Analyzed: 05/13/23 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/L0.50 L-04ND 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/L5.0ND Naphthalene g/L0.50ND 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 16 of 25 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 B340060 - SW-846 5030B Blank (B340060-BLK1) Prepared: 05/12/23 Analyzed: 05/13/23 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 92.123.0 g/L 25.0 70-130Surrogate: Toluene-d8 99.424.8 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 93.123.3 LCS (B340060-BS1) Prepared: 05/12/23 Analyzed: 05/13/23 Acetone g/L50 100 70-13084.484.4 Benzene g/L0.50 10.0 70-13010010.0 Bromobenzene g/L0.50 10.0 70-13010210.2 Bromochloromethane g/L0.50 10.0 70-13097.69.76 Bromodichloromethane g/L0.50 10.0 70-13095.29.52 Bromoform g/L0.50 10.0 70-13082.58.25 Bromomethane g/L2.0 10.0 60-14012012.0 2-Butanone (MEK)g/L5.0 100 70-13093.193.1 n-Butylbenzene g/L0.50 10.0 70-13093.89.38 sec-Butylbenzene g/L0.50 10.0 70-13094.89.48 tert-Butylbenzene g/L0.50 10.0 70-13098.59.85 Carbon Tetrachloride g/L0.50 10.0 70-13087.58.75 Chlorobenzene g/L0.50 10.0 70-13010710.7 Ethanol g/L50 100 70-13079.679.6 Chlorodibromomethane g/L0.50 10.0 70-13094.49.44 Chloroethane g/L0.50 10.0 60-14089.98.99 Chloroform g/L0.50 10.0 70-13091.49.14 Chloromethane g/L0.60 10.0 60-14010910.9 2-Chlorotoluene g/L0.50 10.0 70-13010510.5 4-Chlorotoluene g/L0.50 10.0 70-13010210.2 1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13010410.4 1,2-Dichlorobenzene g/L0.50 10.0 70-13099.39.93 1,3-Dichlorobenzene g/L0.50 10.0 70-13010010.0 1,4-Dichlorobenzene g/L0.50 10.0 70-13010110.1 Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 60-14011011.0 1,1-Dichloroethane g/L0.50 10.0 70-13012012.0 1,2-Dichloroethane g/L0.50 10.0 70-13085.18.51 1,1-Dichloroethylene g/L0.50 10.0 70-13087.08.70 cis-1,2-Dichloroethylene g/L0.50 10.0 70-13089.08.90 trans-1,2-Dichloroethylene g/L0.50 10.0 70-13093.49.34 1,2-Dichloropropane g/L0.50 10.0 70-13010210.2 1,3-Dichloropropane g/L0.50 10.0 70-13010210.2 2,2-Dichloropropane g/L0.50 10.0 L-0470-13062.4 *6.24 1,1-Dichloropropene g/L0.50 10.0 70-13094.99.49 cis-1,3-Dichloropropene g/L0.50 10.0 70-13093.99.39 trans-1,3-Dichloropropene g/L0.50 10.0 70-13092.79.27 Page 17 of 25 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 B340060 - SW-846 5030B LCS (B340060-BS1) Prepared: 05/12/23 Analyzed: 05/13/23 Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13011411.4 Ethylbenzene g/L0.50 10.0 70-13010610.6 2-Hexanone (MBK)g/L5.0 100 70-13093.293.2 Isopropylbenzene (Cumene)g/L0.50 10.0 70-13010310.3 p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13094.59.45 Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 70-13094.79.47 Methylene Chloride g/L5.0 10.0 70-13092.59.25 4-Methyl-2-pentanone (MIBK)g/L5.0 100 70-13091.691.6 Naphthalene g/L0.50 10.0 70-13090.99.09 n-Propylbenzene g/L0.50 10.0 70-13010310.3 Styrene g/L0.50 10.0 70-13010310.3 1,1,2,2-Tetrachloroethane g/L0.50 10.0 70-13091.19.11 Tetrachloroethylene g/L0.50 10.0 70-13010710.7 Toluene g/L0.50 10.0 70-13010510.5 1,2,3-Trichlorobenzene g/L1.0 10.0 70-13097.39.73 1,2,4-Trichlorobenzene g/L0.50 10.0 70-13099.79.97 1,1,1-Trichloroethane g/L0.50 10.0 70-13090.19.01 1,1,2-Trichloroethane g/L0.50 10.0 70-13010410.4 Trichloroethylene g/L0.50 10.0 70-13010110.1 Trichlorofluoromethane (Freon 11)g/L0.50 10.0 70-13087.28.72 1,2,3-Trichloropropane g/L0.50 10.0 70-13011311.3 1,2,4-Trimethylbenzene g/L0.50 10.0 70-13096.19.61 1,3,5-Trimethylbenzene g/L0.50 10.0 70-13099.29.92 Vinyl Acetate g/L20 100 70-13090.890.8 Vinyl Chloride g/L0.50 10.0 60-14011311.3 m+p Xylene g/L1.0 20.0 70-13010521.0 o-Xylene g/L0.50 10.0 70-13010310.3 g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 86.521.6 g/L 25.0 70-130Surrogate: Toluene-d8 10225.6 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 96.824.2 LCS Dup (B340060-BSD1) Prepared: 05/12/23 Analyzed: 05/13/23 Acetone g/L50 100 2570-13085.2 0.95685.2 Benzene g/L0.50 10.0 2570-13094.4 6.169.44 Bromobenzene g/L0.50 10.0 2570-13095.6 6.099.56 Bromochloromethane g/L0.50 10.0 2570-13094.0 3.769.40 Bromodichloromethane g/L0.50 10.0 2570-13093.0 2.349.30 Bromoform g/L0.50 10.0 2570-13087.0 5.318.70 Bromomethane g/L2.0 10.0 2560-140114 5.2911.4 2-Butanone (MEK)g/L5.0 100 2570-13091.7 1.5091.7 n-Butylbenzene g/L0.50 10.0 2570-13085.7 9.038.57 sec-Butylbenzene g/L0.50 10.0 2570-13087.6 7.898.76 tert-Butylbenzene g/L0.50 10.0 2570-13090.7 8.259.07 Carbon Tetrachloride g/L0.50 10.0 2570-13083.9 4.208.39 Chlorobenzene g/L0.50 10.0 2570-130100 6.2910.0 Ethanol g/L50 100 2570-13072.2 9.8372.2 Chlorodibromomethane g/L0.50 10.0 2570-13089.6 5.228.96 Chloroethane g/L0.50 10.0 2560-14086.7 3.628.67 Chloroform g/L0.50 10.0 2570-13086.7 5.288.67 Chloromethane g/L0.60 10.0 2560-14098.8 9.919.88 2-Chlorotoluene g/L0.50 10.0 2570-13094.4 11.09.44 4-Chlorotoluene g/L0.50 10.0 2570-13095.2 6.419.52 Page 18 of 25 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 B340060 - SW-846 5030B LCS Dup (B340060-BSD1) Prepared: 05/12/23 Analyzed: 05/13/23 1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-13099.8 3.649.98 1,2-Dichlorobenzene g/L0.50 10.0 2570-13098.2 1.119.82 1,3-Dichlorobenzene g/L0.50 10.0 2570-13095.6 5.009.56 1,4-Dichlorobenzene g/L0.50 10.0 2570-13092.5 8.989.25 Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 2560-140101 8.1710.1 1,1-Dichloroethane g/L0.50 10.0 2570-130105 13.110.5 1,2-Dichloroethane g/L0.50 10.0 2570-13080.6 5.438.06 1,1-Dichloroethylene g/L0.50 10.0 2570-13081.3 6.778.13 cis-1,2-Dichloroethylene g/L0.50 10.0 2570-13082.2 7.948.22 trans-1,2-Dichloroethylene g/L0.50 10.0 2570-13091.7 1.849.17 1,2-Dichloropropane g/L0.50 10.0 2570-130100 1.2910.0 1,3-Dichloropropane g/L0.50 10.0 2570-13098.9 3.189.89 2,2-Dichloropropane g/L0.50 10.0 25 L-0470-13058.1 7.14*5.81 1,1-Dichloropropene g/L0.50 10.0 2570-13087.3 8.348.73 cis-1,3-Dichloropropene g/L0.50 10.0 2570-13088.1 6.378.81 trans-1,3-Dichloropropene g/L0.50 10.0 2570-13083.2 10.88.32 Diisopropyl Ether (DIPE)g/L0.50 10.0 25 L-0770-130131 14.0*13.1 Ethylbenzene g/L0.50 10.0 2570-13099.9 5.649.99 2-Hexanone (MBK)g/L5.0 100 2570-13089.5 3.9689.5 Isopropylbenzene (Cumene)g/L0.50 10.0 2570-13094.3 9.219.43 p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-13088.9 6.118.89 Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 2570-130108 13.110.8 Methylene Chloride g/L5.0 10.0 2570-13091.7 0.8699.17 4-Methyl-2-pentanone (MIBK)g/L5.0 100 2570-13091.2 0.42791.2 Naphthalene g/L0.50 10.0 2570-13084.1 7.778.41 n-Propylbenzene g/L0.50 10.0 2570-13095.6 7.269.56 Styrene g/L0.50 10.0 2570-130101 2.1610.1 1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-13091.4 0.3299.14 Tetrachloroethylene g/L0.50 10.0 2570-130102 4.8910.2 Toluene g/L0.50 10.0 2570-130101 4.3710.1 1,2,3-Trichlorobenzene g/L1.0 10.0 2570-13090.6 7.139.06 1,2,4-Trichlorobenzene g/L0.50 10.0 2570-13094.1 5.789.41 1,1,1-Trichloroethane g/L0.50 10.0 2570-13086.3 4.318.63 1,1,2-Trichloroethane g/L0.50 10.0 2570-13096.9 6.789.69 Trichloroethylene g/L0.50 10.0 2570-130100 0.099510.0 Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-13083.9 3.868.39 1,2,3-Trichloropropane g/L0.50 10.0 2570-130109 3.5210.9 1,2,4-Trimethylbenzene g/L0.50 10.0 2570-13089.6 7.008.96 1,3,5-Trimethylbenzene g/L0.50 10.0 2570-13092.6 6.889.26 Vinyl Acetate g/L20 100 2570-13096.9 6.5096.9 Vinyl Chloride g/L0.50 10.0 2560-14098.6 13.79.86 m+p Xylene g/L1.0 20.0 2570-13096.0 8.9519.2 o-Xylene g/L0.50 10.0 2570-13095.9 7.149.59 g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 86.221.5 g/L 25.0 70-130Surrogate: Toluene-d8 10025.1 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 96.524.1 Page 19 of 25 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 [TOC_1]Flag/Qualifier Summary[TOC] Page 20 of 25 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 21 of 25 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 22 of 25 Table of Contents Page 23 of 25 Table of Contents Page 24 of 25 Table of Contents Page 25 of 25 Table of Contents