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HomeMy WebLinkAboutRA-1717_10538_CA_MRP_20230825 ENVIRONMENTAL | CIVIL | GEOTECHNICAL MONITORING REPORT WILLIAM WATTS STORE 2100 AUBURN ROAD RALEIGH, WAKE COUNTY, NC NCDEQ INCIDENT NO. 10538 RISK CLASSIFICATION: H0350D AUGUST 25, 2023 NCDEQ CONTRACT NO. N70522-A TASK AUTHORIZATION NO. 01 CATLIN PROJECT NO. 221081 PREPARED FOR: MR. MARK PETERMANN 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; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 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 3 4.3 CONTAMINANT SOURCE INVENTORY 4 4.4 SITE CHARACTERISTICS 4 4.5 OWNERS AND OCCUPANTS OF ADJOINING/NEARBY PROPERTIES AND LAND USE 4 4.6 RECEPTOR INFORMATION 4 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 GAUGING DATA 8 6.2 SAMPLING DATA 8 6.3 SUMMARY OF GROUNDWATER INFORMATION 9 6.4 EVALUATION OF ASSESSMENT INFORMATION 10 7.0 CONCLUSIONS AND RECOMMENDATIONS 11 8.0 LIMITATIONS 11 9.0 STATEMENTS AND CERTIFICATION 12 10.0 REFERENCES 12 NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 TABLES TABLE 1 SITE HISTORY – UST AND OTHER RELEASE INFORMATION TABLE 2 PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION TABLE 3 WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA TABLE 4 SUMMARY OF GROUNDWATER LABORATORY RESULTS – STANDARD METHOD 6200B TABLE 5 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS – STANDARD METHOD 6200B FIGURES FIGURE 1 SITE VICINITY MAP FIGURE 2 POTENTIAL RECEPTOR MAP FIGURE 3 SITE MAP FIGURE 4 GROUNDWATER ELEVATION – JULY 13, 2023 FIGURE 5 MONITORING WELL GROUNDWATER SAMPLE ANALYTICAL RESULTS – JULY 13, 2023 FIGURE 6 WATER SUPPLY WELL GROUNDWATER SAMPLE ANALYTICAL RESULTS – JULY 13, 2023 APPENDICES APPENDIX A HISTORICAL DATA APPENDIX B SITE PHOTOGRAPHS APPENDIX C DAILY ACTIVITIES LOG AND FIELD DATA SHEETS APPENDIX D LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 1 August 2023 1.0 SITE INFORMATION Site Identification Date: 08/25/2023 Site Risk/Priority Rank: H0350D UST Number: RA-1717 Incident Number: 10538 Site Name: William Watts Store Facility ID: Unknown Site Location: 2100 Auburn Road Nearest City/Town: Raleigh County: Wake Description of Geographical Data Point: Former Dispenser Island Location Method: Google Earth Latitude (decimal degrees): 35.693002° Longitude (decimal degrees): -78.555279° Contacts Information Former UST Owner: Mr. William Watts Address: 3923 St. James Church Rd., Raleigh, NC 27604 Phone: Not Applicable Former UST Operator: Mr. William Watts Address: 3923 St. James Church Rd., Raleigh, NC 27604 Phone: Not Applicable Property Owner: Auburn Road, LLC Address: 200 US Highway 70E, Garner, NC 27529 Phone: Unknown Property Occupant: Light of Life Ministries Address: 2100 Auburn Road, Raleigh, NC 27610 Phone: (919) 280-9911 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: 06/19/1992 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: • One 1,000-gallon gasoline UST • One 550-gallon kerosene UST NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 2 August 2023 2.0 EXECUTIVE SUMMARY The William Watts Store site is located at 2100 Auburn Road, Raleigh, Wake County, North Carolina. Two underground storage tanks (USTs) were previously operated at the site. One 1,000-gallon gasoline UST and one 550-gallon kerosene UST were removed from the site in 1993. A petroleum release was discovered when residents noticed gasoline in their potable water supply wells. Petroleum-impacted soils were identified during UST closures. The purpose of this report is to document the latest groundwater sampling event. On July 13, 2023, CATLIN Engineers and Scientists (CATLIN) personnel measured groundwater at approximately 11.7 feet below the top of casing (BTOC) across the site. Groundwater samples from five monitoring wells and three water supply wells (WSWs) were collected. One WSW (WSW-9) had a point of entry (POE) treatment system, and a sample was collected both pre- and post-treatment (influent and effluent). 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 did not indicate any dissolved petroleum constituents above their respective Title 15A of the North Carolina Administrative Code, Subchapter 2L, Section .0202 Groundwater Quality Standards (2L GWQS) in the samples collected from monitoring wells MW-1, MW-3R, MW-7, or MW-9. Naphthalene was detected in the sample from MW-4 at a concentration above its 2L GWQS. Light non-aqueous phase liquid (LNAPL aka free-phase product) has not been detected at this site. Groundwater flow direction is towards the northwest. Analytical results from the samples from water supply well WSW-9 E (Effluent), WSW-12, and WSW-24 did not indicate any dissolved petroleum constituents above laboratory reporting limits. The influent sample from water supply well WSW-9 (WSW-9 I) revealed benzene and naphthalene at concentrations which exceeded their 2L GWQS as well as multiple estimated (“J”-value) and low concentrations of additional constituents. Contaminant concentrations appear to have decreased in the sample from monitoring well MW-4 since the March 2022 sampling event. CATLIN recommends to: • Continue to pursue the relocation of WSW-9. On March 18, 2022, Mr. Mark Petermann (NCDEQ) emailed the owner of WSW-9 to see if he was willing to relocate the water supply well on-site. If agreed upon, CATLIN recommends installing a new water supply well on the parcel, abandon WSW-9 and installing an additional water supply well on the adjacent property (currently utilizing WSW-9). • Install a Provectus®-ORS (ORS Sleeve) into monitoring well MW-4 to reduce dissolved contamination. • Conduct a sampling event approximately 6-months after deployment of the ORS Sleeves. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 3 August 2023 3.0 SCOPE OF SERVICES The scope of services for this report was performed in general accordance with CATLIN proposal number 221081.01P, dated July 6, 2023. Services were authorized by the North Carolina Department of Environmental Quality’s (NCDEQ’s) Task Authorization (TA) #01, accepted on July 7, 2023, and Contract Number N70522-A. The approved scope of services for this Task Authorization included to: • Collect monitoring well samples from five monitoring wells (MW-1, MW-3R, MW-4, MW-7, and MW-9); • Collect water supply well samples from four wells [WSW-2 (if access granted), WSW-9 (influent and effluent), WSW-12, and WSW-24]; • Analyze 12 samples (five monitoring wells, five water supply well samples, one trip blank, and one field blank) per SM 6200B (including EDB, MTBE, and DIPE); • Prepare an Annual Monitoring Report documenting the findings. CATLIN personnel were unable to gain access to WSW-2; therefore, this well was not sampled. The remaining scope of services was conducted in general accordance with the approved TA. 4.0 SITE HISTORY AND CHARACTERIZATION The William Watts Store site is located at 2100 Auburn Road, Raleigh, Wake County, North Carolina (Figures 1 and 2). Summarized available historical sampling and gauging data done by other consultants are provided in Appendix A and site photographs are presented in Appendix B. 4.1 UST OWNER AND OPERATOR INFORMATION Mr. William Watts owned the two USTs historically operated on-site. The tanks were operated by Watts Store for petroleum retail sales. Upon his passing, ownership was transferred to Mr. Samuel Watts, his son, who did not participate in the store operation. Mr. William Watts is deceased, and the site was accepted into the North Carolina UST Section Trust Fund Branch State Lead Program (ATEC, 1994). Available information regarding UST owners/operators is presented on Table 1. 4.2 UST INFORMATION Reportedly, one 1,000-gallon gasoline and one 550-gallon kerosene UST were previously operated on-site. The installation dates for the tanks are unknown and they operated until July 1993 when they were removed from the site (OHM, 1993). NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 4 August 2023 Available UST system information is presented in Table 1 and the approximate former UST basin locations are illustrated on Figure 3. 4.3 CONTAMINANT SOURCE INVENTORY An on-site release was discovered in June 1992 when residents noticed gasoline in their potable water supply wells. During the tank closure activities in July 1993, approximately 9.91 tons of contaminated soils were excavated and removed from the site and soil samples were collected. The analytical results revealed total petroleum hydrocarbons (TPH) above State Action Levels (W&R, 2008; S&ME, 2017). 4.4 SITE CHARACTERISTICS The property is currently owned by Auburn Road, LLC and it is occupied by Light of Life Ministries church and several residential homes. The parcel is comprised of the church building, several residential homes and structures, trees, grassy areas, and gravel/dirt driveways. 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 residential. The site is bounded by Auburn Road to the north and east with a train track and residences beyond, Gin Street to the west with residences beyond, and residences to the south. 4.6 RECEPTOR INFORMATION CATLIN performed a receptor survey in September 2021. CATLIN personnel walked a 500-foot radius from the site and performed a windshield survey of all properties within the remaining 1,500 feet from the site. Additionally, Request for Water Supply Well Information Survey letters were sent to all property owners within 1,000 feet of the site. Information obtained from the field survey and letter responses were compiled with water supply well information provided by S&ME on September 15, 2014 and is summarized below. Based on utility data and GIS information obtained from correspondence with the City of Raleigh Public Utilities department, municipal water is available to many properties within 1,500 feet of the site. The properties where public water is not currently available, water lines could be extended in those areas to provide connections (CATLIN, 2021). A total of 24 water supply wells were identified within 1,500 feet. Within 1,000 feet of the site, 17 potable wells are located. Most wells identified during the survey were either confirmed to be potable wells or assumed to be potable NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 5 August 2023 based on municipal water information (CATLIN, 2021). The use of several wells was undetermined and are included as “unknown” on Table 2. Three surface water bodies were identified within 1,500 feet of the site. According to CATLIN personnel observations during the receptor survey, three unnamed/unclassified small creeks were identified within 1,500 feet of the site (CATLIN, 2021). Potential receptors are illustrated on Figure 2 and receptor information is shown on Table 2. 4.7 PREVIOUS INVESTIGATIONS AND REMEDIAL ACTIVITIES As discussed above, the on-site release was discovered in June 1992 when residents noticed gasoline in their potable water supply wells. During the tank closure activities in July 1993, soil samples were collected, and the analytical results revealed TPH above State Action Levels. Additionally, a groundwater sample from the on-site potable well was collected and sampled. The laboratory analytical results indicated that 1,2-dichloroethane was present at a concentration which exceeded the 2L GWQS (ATEC, 1994; W&R, 2008). Annual water supply well sampling was conducted at the subject site and surrounding wells until February 24, 2000, when the on-site residences were connected to public water and the on-site water supply well (WSW-1) was abandoned in August 2000 (MM&A, 2001). Between September 2005 and August 2014, nine monitoring wells were installed and sampled by various consultants. The laboratory analytical results of samples from monitoring wells MW-3 and MW-4 have historically detected multiple petroleum constituents at concentrations which exceeded their 2L GWQS. In October 2010, S&ME advanced seven soil borings on the property to varying depths, with soil samples collected at selected intervals. The laboratory analytical results of the soil samples indicated that several VOCs, carbon fractions, and/or other petroleum constituents were detected in soil boring SB-1 (to the west of the UST basin) at a depth of five feet below land surface (BLS) at concentrations exceeding their respective Maximum Soil Contaminant Concentrations (MSCCs) or State Action Levels. Monitoring wells MW-3 and MW-6D were abandoned in June 2016 in preparation for the removal of impacted soil in their vicinity. A total of 128.34 tons of additional petroleum-impacted soil was removed at this time. Six confirmatory soil samples were collected from the sidewalls of the excavation for laboratory analysis. No target constituents were reported in these samples at concentrations exceeding their respective Soil to Groundwater MSCCs. Samples were not collected from the base of the excavation due to excessive moisture. Well MW-3R was later installed as a replacement. Laboratory analytical results from MW-3R have not detected petroleum constituents above 2L GWQS. The surrounding water supply wells have also continued to be sampled and monitored (S&ME, 2010; S&ME, 2016; S&ME, 2017). NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 6 August 2023 Since the release was discovered in June 1992, different water supply wells have been sampled at various times by various consultants (the wells include WSW-1 through WSW-9, WSW-11, WSW-12, WSW-13 through WSW-16, WSW-18, and WSW-24). Water supply well WSW-9 currently has a POE treatment system and both influent and effluent samples are collected. Multiple VOCs (including benzene, 1,2-dichloroethane, and naphthalene) have been detected in samples from wells WSW-1 (until it was abandoned) and the influent sample from WSW-9. CATLIN conducted the most recent monitoring event in September 2021. Monitoring wells MW-1 through MW-5 and MW-7 through MW-9 were sampled as well as three nearby water supply wells (WSW-9 [influent and effluent], WSW-12, and WSW-24). Water supply well WSW-2 was not sampled due to lack of access. Groundwater laboratory analysis revealed naphthalene above its 2L GWQS in the MW-4 sample. Multiple petroleum constituents were detected in the WSW-9 influent sample. However, all contaminants were below their corresponding Gross Contaminant Levels (GCLs). No analytes were detected in the WSW-9 (effluent), WSW-12, or WSW-24 samples (CATLIN, 2021). CATLIN also performed a receptor survey in September 2021. A total of 24 water supply wells were identified within 1,500 feet of the site. Seventeen active potable wells were identified between 250 and 1,000 feet from the site and three surface water bodies (small, unnamed creeks) were identified within 1,500 feet. Public water surface was noted to be available to some, but not all, properties in the site vicinity. Water lines were present along East Garner Road and a water line crosses over to Auburn Road in the vicinity of Antelope Lane and continues to the southeast along Auburn Road (CATLIN 2021). On March 10, 2022, CATLIN personnel collected groundwater samples from five monitoring wells and three WSWs. Laboratory results from the samples from supply wells WSW-9E (effluent), WSW-12, and WSW-24 did not indicate any dissolved petroleum constituents above laboratory reporting limits. The influent sample from water supply well WSW-9 revealed benzene and naphthalene at concentrations which exceeded their 2L GWQS as well as multiple estimated (“J”-value) and low concentrations of additional constituents (CATLIN, 2022). Summarized available historical monitoring well sampling and gauging data conducted by other consultants are provided in Appendix A. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 7 August 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 the foliated to massive intrusive granitic rocks of the Rolesville Suite within the Raleigh Belt. These are megacrystic to equigranular rocks, and the Wise and Lemon Springs intrusives are exposed in the site area. Boring logs provided in S&ME October 2010 and S&ME September 2014 reports indicate that tan-orange-yellow silty sands and sandy silty clays are present to approximately 45 feet BLS (S&ME, 2010; S&ME, 2014). 5.2 HYDROGEOLOGY Groundwater - The 2020 Visual Hydrogeologic Framework (VHF) – North Carolina Hydrogeological Database did not identify sufficient boreholes near the site to draw a cross-section. Surface Water – Three surface water bodies were identified within 1,500 feet of the site. According to CATLIN personnel observations during the receptor survey, three unnamed/unclassified small creeks were identified within 1,500 feet of the site (CATLIN, 2021). 6.0 SITE ASSESSMENT INFORMATION CATLIN personnel followed the previously prepared Health and Safety Plan (HASP) when conducting the site visit. CATLIN conducted field activities on July 13, 2023 in general accordance with the approved TA. Upon arrival at the site, potential hazards were evaluated before beginning field work and are documented on a Daily Activities Log. The Daily Activities Log is included in Appendix C. Photographs from the site visit are included in Appendix B. CATLIN personnel gauged and collected groundwater samples for laboratory analysis of VOCs per SM 6200B from five monitoring wells (MW-1, MW-3R, MW-4, MW-7, and MW-9) and three water supply wells (WSW-9, WSW-12, and WSW-24). Water supply well WSW-9 has a POE treatment system and samples were collected at the influent and effluent locations. CATLIN was unable to gain access to sample water supply well WSW-2, so this well was not sampled. Water supply well locations are illustrated on Figure 2 and well information is provided in Table 2. Monitoring well locations and site features are shown on Figure 3 and monitoring well construction details are presented in Table 3. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 8 August 2023 6.1 GAUGING DATA Historically, depth to water has ranged from 7.57 feet BTOC (MW-8, 2016) to 16.68 feet BTOC (MW-5, 2017). The groundwater flow direction has been towards the northwest (S&ME, 2018). During July 2023 event, CATLIN personnel measured depth to water in five monitoring wells using an electronic water interface probe. To prevent cross contamination, the probe and cabling were decontaminated according to manufacturer’s recommendations between use in each well. Gauging data were recorded on an electronic groundwater sampling form using a tablet device. Gauging procedures were performed in general accordance with North Carolina Department of Environmental and Natural Resources (NCDENR) and NCDEQ Guidelines, and Environmental Protection Agency (EPA) Region 4 Operating Procedures. Depth to water ranged from 8.83 feet BTOC (MW-9) to 13.38 feet BTOC (MW-4). The depths to water measured in all the gauged wells were within their respective screened intervals. Based on groundwater elevations calculated for this monitoring period, groundwater flow direction is towards the northwest, which is consistent with the historical groundwater flow direction. Monitoring well gauging results are presented in Table 3. Groundwater elevations are illustrated on Figure 4 and field data sheets are provided in Appendix C. 6.2 SAMPLING DATA Following gauging, the monitoring wells and water supply 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 (or bailing the well dry) using a new, disposable bailer. The water supply wells were purged by allowing the spigot to run for approximately 15 minutes. 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 field data sheets. Copies of the field data sheets are available in Appendix C. After purging activities, a groundwater sample was collected from each well and poured from the bailer directly into appropriate laboratory-provided, pre-preserved glassware, labeled, and placed on ice in an insulated cooler. The water supply well samples were collected directly from either a spigot located NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 9 August 2023 on the well or potentially on the residential structure. These samples were directly into appropriate laboratory-provided, pre-preserved glassware, labeled, and placed on ice in an insulated cooler. A field blank was collected by pouring water from a new, sealed gallon of distilled water directly into laboratory-provided glassware. The glassware was labeled and placed on ice in an insulated cooler. A laboratory-provided trip blank was maintained in the cooler for the duration of the sampling event. The groundwater samples, the field blank, and the trip blank were submitted to Con-Test Analytical Laboratory (Certification NC 652 and NC-DW 25703) in East Longmeadow, Massachusetts, under proper chain of custody (COC) protocol for analyses described in Section 3.0 Scope of Services. The COC is included with the analytical report provided Appendix D. 6.3 SUMMARY OF GROUNDWATER INFORMATION Historically, samples from monitoring well MW-3 have revealed the highest concentrations of petroleum constituents. However, since additional soil excavation was conducted in 2016 near former MW-3, MW-4 has exhibited the highest petroleum constituent concentrations. During the previous sampling event conducted by CATLIN in March 2022, the sample from MW-4 contained VOCs at concentrations above the 2L GWQS. Summarized available historical gauging and sampling data from other consultants are provided in Appendix A. The latest groundwater sampling laboratory results for SM 6200B analysis are summarized in Table 4 and historical results are in Table 5. Monitoring well sample analytical results are illustrated on Figure 5 and water supply well results are summarized on Figure 6. A copy of the complete laboratory report and COC documentation are in Appendix D. Monitoring Wells During the July 2023 monitoring event, five monitoring well groundwater samples (MW-1, MW-3R, MW-4, MW-7, and MW-9) were collected and submitted for analysis via SM 6200B (including EDB, MTBE, and DIPE). Laboratory results did not indicate any dissolved petroleum constituents above their respective laboratory reporting limits in the samples from monitoring wells MW-1, MW-3R, MW-7, or MW-9. Multiple VOCs were detected in the sample from MW-4 at concentrations greater than their respective laboratory reporting limits, including naphthalene at a concentration above its 2L GWQS. Water Supply Wells Laboratory analytical results per SM 6200B (including EDB, MTBE, and DIPE) did not indicate any dissolved petroleum constituents above their NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 10 August 2023 respective laboratory reporting limits in the samples from water supply wells WSW-9 (Effluent), WSW-12, and WSW-24. The influent sample from water supply well WSW-9 (WSW-9 I) contained several contaminant concentrations above the laboratory method detection limits, including benzene and naphthalene at concentrations which exceeded their 2L GWQS. Field Blank and Trip Blank One field blank sample and one laboratory-provided trip blank sample were submitted for analysis per SM 6200B (including EDB, MTBE, and DIPE). Laboratory analysis of the field blank sample detected an estimated (“J”-value) concentration of acetone. No additional targeted analytes were detected in the field blank sample. No targeted analytes were detected in the trip blank sample. 6.4 EVALUATION OF ASSESSMENT INFORMATION Extent of Contamination Naphthalene was detected above its 2L GWQS in the MW-4 sample. A summary of monitoring well groundwater sample analytical results is illustrated on Figure 5. The highest contaminant concentrations have historically been reported in samples from MW-4. The concentrations in the sample from MW-4 collected during this monitoring event revealed concentrations lower than those reported during the previous event in March 2022 (CATLIN, 2022). Additionally, laboratory analytical results of the pre-treatment water supply well sample WSW-9 I revealed benzene and naphthalene concentrations which exceeded their respective 2L GWQS. Cleanup Levels Achieved Soil – To date, 138.25 tons of impacted soil have been removed from the site. Laboratory analysis via EPA Method 8260B and Massachusetts Department of Environmental Protection (MADEP) volatile petroleum hydrocarbon (VPH) methods of the soil samples obtained from the post-excavation activities in 2016 indicated that petroleum constituent concentrations did not exceed the MSCCs (S&ME, 2016). Groundwater – Groundwater contaminant concentrations are above 2L GWQS at the site, both in a monitoring well (MW-4) and a water supply well (WSW-9). LNAPL – LNAPL has not been detected at this site. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 11 August 2023 7.0 CONCLUSIONS AND RECOMMENDATIONS Conclusions Groundwater monitoring findings for this period are summarized below: • Five monitoring wells (MW-1, MW-3R, MW-4, MW-7, and MW-9) were sampled. • Three water supply wells (WSW-9, WSW-12, and WSW-24) were sampled. • Water supply well WSW-2 was not sampled due to lack of access. • Naphthalene was revealed as above its 2L GWQS in MW-4. • Contaminant concentrations in MW-4 have decreased since the March 2022 sampling event. • Petroleum constituents which exceeded their 2L GWQS were detected in the pre-treatment WSW-9 I sample. • No petroleum constituents were detected in the WSW-9 Effluent, WSW-12, or WSW-24 samples. • Groundwater flow was found to be in the northwest direction. Beginning in the summer of 2023, discussions between Wake County, the Town of Garner, and the NCDEQ State Lead Program have been on-going concerning connecting the area in the vicinity of the subject site to municipal water. A public meeting is scheduled for September 12, 2023 to gage interest. Recommendations CATLIN recommends to: • Pending the outcome of the September 12th public meeting, connect nearby parcels to municipal water if it becomes available. • Install an ORS Sleeve into monitoring well MW-4 to reduce dissolved contamination. • Conduct a sampling event approximately 6-months after deployment of the ORS Sleeves. 8.0 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. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 12 August 2023 9.0 STATEMENTS AND CERTIFICATION 1 Enter the date the monitoring report was due. August 25, 2023 Will this report be submitted after the established due date? NO 2 Was any required information from the above template missing from this report? YES No cross sections are provided. 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 No CAP has been submitted for this site. 4 Does any known or suspected source zone soil contamination or free product remain outside of the assessed area that could be inhibiting natural attenuation? NO 5 Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite or offsite source? NO 6 Certification: I, Sean J. O’Neil, a Licensed Engineer 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 engineering in North Carolina. The certification number of the company or corporation is C-0585. 10.0 REFERENCES ATEC Associates, Inc., Initial Investigation, William Watts Store, 2100 Auburn Road, Auburn, NC (Wake County), DEM Task Number 10538-2, September 23, 1994. CATLIN Engineers and Scientists, Monitoring Report, William Watts Store, 2100 Auburn Road, Raleigh, Wake County, North Carolina, NCDEQ Incident No. 10538, Risk Classification: H0350D, October 7, 2021. CATLIN Engineers and Scientists, Monitoring Report, William Watts Store, 2100 Auburn Road, Raleigh, Wake County, North Carolina, NCDEQ Incident No. 10538, Risk Classification: H0350D, April 7, 2022. Horton, J. Wright, Jr. and Victor A. Zullo, An Introduction to the Geology of the Carolinas: The Geology of the Carolinas, pp 1-11. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 13 August 2023 Marshall Miller & Associates, Water Supply Well Annual Monitoring Report, Watts Store, 2100 Auburn Road, Garner, Wake County, NC, Incident No. 10538, November 27, 2001. Narkunas, J., Groundwater Evaluation in the Central Coastal Plain of North Carolina, North Carolina Department of Natural Resources and Community Development, 1980, pp 119. NCDEQ, Division of Water Resources, 2020 Visual Hydrogeologic Framework, North Carolina Hydrogeological Database, ncwater.org/?page=350. 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. OHM Corporation, UST Closure and Site Sensitivity Evaluation Report, August 31, 1993. S&ME, Inc., Groundwater Monitoring Report, Former William Watts Store, 2100 Auburn Road, Raleigh, Wake County, NC, 27610, NCDENR Incident No. 10538, October 15, 2010. S&ME, Inc., Groundwater Monitoring Report, Former William Watts Store, # 10538, 2100 Auburn Road, Raleigh, Wake County, NC, 27610, September 15, 2014. S&ME, Inc., Soil Removal Report, William Watts Store, Incident # 10538, 2100 Auburn Road, Raleigh, Wake County, NC, 27610, September 19, 2016. S&ME, Inc., Groundwater Monitoring Report, Former William Watts Store, # 10538, 2100 Auburn Road, Raleigh, Wake County, NC, 27610, January 18, 2017. S&ME, Inc., Groundwater Monitoring Report, Former William Watts Store, # 10538, 2100 Auburn Road, Raleigh, Wake County, NC, 27610, February 16, 2018. U.S. Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey, https://websoilsurvey.sc.egov.usda.gov/App/WebSoilSurvey.aspx. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Field Equipment Cleaning and Decontamination at the FEC, Striggow, B., U.S. EPA Report No. SESDPROC-206-R3, Effective Date December 18, 2015. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Laboratory Services and Applied Science Division, Athens Georgia, Operating Procedure Potable Water Supply Sampling, Chief, Applied Science Branch, U.S. EPA Report No. ASBPROC-305-R4, Effective Date June 11, 2019. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 14 August 2023 U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Groundwater Level and Well Depth Measurement, Striggow, B., U.S. EPA Report No. SESDPROC-105-R3, Effective Date November 3, 2016. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – Groundwater Sampling, Striggow, B., U.S. EPA Report No. SESDPROC-301-R4, Effective Date April 26, 2017. U.S. EPA, Region 4, U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens Georgia, Operating Procedure – In Situ Water Quality Monitoring, Chief, Field Services Branch, U.S. EPA Report No. SESDPROC-111-R4, Effective Date March 14, 2018. Winner, M.D, Jr., and Coble, R.W., Hydrogeologic Framework of the North Carolina Coastal Plain Aquifer System: U.S. Geological Survey Open File Report 87- 690, 1989, pp 155. Withers & Ravenel, Phase I Limited Site Assessment, Watts Store, 2100 Auburn Road, Garner, Wake County, NC, Incident No. 10538, November 11, 2005. Withers & Ravenel, Additional Site Assessment Report, Watts Store, 2100 Auburn Road, Garner, Wake County, NC, Incident No. 10538, March 3, 2006. Withers & Ravenel, Monitoring Report, Watts’ Store, 2100 Auburn Road, Garner, Wake County, North Carolina, Incident # 10538, W&R Project No. 97505.0, December 30, 2008. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 TABLES Page 1 of 1 TABLE 1 SITE HISTORY — UST AND OTHER RELEASE INFORMATION Incident Name and No.: William Watts Store - 10538 UST ID Number Name of Owner/ Operator Last Contents Previous Contents Capacity (gal) Construction Details Tank Dimensions (inches) Installation Date (mm/dd/yy) Date Removed (mm/dd/yy) 1 Gasoline Gasoline 1,000 Unknown Unknown Unknown 07/30/93 2 Kerosene Kerosene 550 Unknown Unknown Unknown 07/30/93 Incident Number Material Released Date of Release (mm/dd/yy) 10538 Kerosene Gasoline 06/19/92 Information obtained from S&ME (2018). gal = gallons Dates of Ownership/Operation (mm/dd/yy) Mr. William Watts Description of the Release Residents began to notice gasoline in their potable water supply well in June of 1992. TPH later discovered in soils during UST excavation on July 30, 1993. Unknown - 07/30/93 Unknown - 07/30/93 NCDEQ; 10538_William Watts Store; T1_Site History CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 Page 1 of 4 TABLE 2 Incident Name and No.: William Watts Store - 10538 Well ID Property Address Wake County PIN Number Owner Name (Last, First MI) Owner Mailing Address Well Use Distance/ Direction from Source Area (ft.) Comment WSW-2 2112 Auburn Road, Raleigh, NC 1730262960 Wright, Carolyn C 4736 Gin Street, Raleigh, NC Potable 430 / SE Per municipality,no water connection. Assumed potable.Owner did not answer door. WSW-3 4721 Gin Street, Raleigh, NC 1730260962 Hinton, Ewarja and Johgre 2700 Adcox Place, Raleigh, NC Potable 535 / S Per municipality,no water connection. Assumed potable.Owner did not answer door. WSW-4 2025 Auburn Road, Raleigh, NC 1730176649 Mazza, Anthony; Helguera- Jimenez, Maria 2025 Auburn Road, Raleigh, NC Potable 429 / WNW Per municipality,no water connection. Assumed potable.Owner did not answer door. WSW-5 2036 E. Garner Road, Raleigh, NC 1730277241 Watts, Laura; Gaul, Barbara 132 S, Hiddenbrooke Drive, Advance, NC Potable 461 / E Per municipality,no water connection.Well located but no answer. Assumed potable. WSW-6 2017 E. Garner Road, Raleigh, NC 1730270794 JPWR Properties LLC 2304 Smith Drive, Clayton, NC Unknown 322 / N Per municipality,no water connection. Property appeared vacant and could not confirm location of well. WSW-7 2021 E. Garner Road, Raleigh, NC 1730271676 JPWR Properties LLC 2304 Smith Drive, Clayton, NC Unknown 253 / NNE Per municipality,no water connection. Property appeared vacant and could not confirm location of well. WSW-8 2021 Auburn Road, Raleigh, NC 1730175657 Colley, Kay; Hinton, Bobbie 3616 Open Sight Ct, Raleigh, NC Potable 498 / WNW Per municipality,no water connection.Well located on property. Assumed potable. WSW-9 4710 Gin Street, Raleigh, NC 1730177184 Woods, John and Larry 4710 Gin Street, Raleigh, NC Potable 370 / SW Influent and Effluent samples were taken from POE sample. PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION NCDEQ; 10538_William Watts Store; T2_Receptor Info CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 Page 2 of 4 TABLE 2 Incident Name and No.: William Watts Store - 10538 PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION Well ID Property Address Wake County PIN Number Owner Name (Last, First MI) Owner Mailing Address Well Use Distance/ Direction from Source Area (ft.) Comment WSW-11 4724 Gin Street, Raleigh, NC 1730168787 Jupiter Investments LLC 3038 Medlin Drive, Raleigh, NC Potable 624 / SSW Per municipality,no water connection.Well located on property. Assumed potable. WSW-12 2020 Auburn Road, Raleigh, NC 1730177385 Newkirk, Charlene 2020 Auburn Road, Raleigh, NC Potable 292 / SW Well located on property.Per owner,this well also serves 4700 Gin Street. WSW-13 2005 Auburn Road, Raleigh, NC 1730174746 Curtis, Foston and Ethel 2005 Auburn Road, Raleigh, NC Potable 626 / WNW Per municipality,no water connection.Well located on property. Assumed potable. WSW-14 2101 E. Garner Road, Raleigh, NC 1730289409 Auburn Estates MHP LLC PO Box 1440, Clayton, NC Unknown 760 / E Well located on front property and all plots have a water meter after.Potentially a community well for the trailerpark. WSW-15 4737 Gin Street, Raleigh, NC 1730260529 Pair, Ella 4737 Gin Street, Raleigh, NC Potable 820 / S Per municipality,no water connection.Well noticed on property. Assumed potable. WSW-16 4741 Gin Street, Raleigh, NC 1730260499 Williams, Joel 1306 Walnut Street, Cary, NC Potable 919 / S Per municipality,no water connection.Well noticed on property. Assumed potable. WSW-17 3109 Antelope Lane, Raleigh, NC 1730285069 Bannister, David PO Box 324, Garner, NC Potable 817 / NE Per municipality,no water connection.Well noticed on property. Assumed potable. WSW-18 2208 Auburn Road, Raleigh, NC 1730264949 Howell, Mindy PO Box 1657, New Port, NC Potable 560 / ESE Per municipality,no water connection.Well noticed on property. Assumed potable. NCDEQ; 10538_William Watts Store; T2_Receptor Info CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 Page 3 of 4 TABLE 2 Incident Name and No.: William Watts Store - 10538 PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION Well ID Property Address Wake County PIN Number Owner Name (Last, First MI) Owner Mailing Address Well Use Distance/ Direction from Source Area (ft.) Comment WSW-19 3112 Antelope Lane, Raleigh, NC 1730283057 Maldonado, Rene 3112 Antelope Lane, Raleigh, NC Potable 736 / NNE Per municipality,no water connection.Well noticed on property. Assumed potable. WSW-20 3108 Antelope Lane, Raleigh, NC 1730283235 Spinks, Patricia 3108 Antelope Lane, Raleigh, NC Potable 902 / NNE Per municipality,no water connection.Well noticed on property. Assumed potable. WSW-21 2104 E. Garner Road, Raleigh, NC 1730370123 Watts, Laura; Gaul, Barbara 132 Hiddenbrooke Drive, Advance, NC Potable 987 / E Per municipality,no water connection.Well noticed on property. Assumed potable. WSW-22 3100 Antelope Lane, Raleigh, NC 1730283666 Bently, Allen and Dixie 1901 Strikland Lane, Clayton, NC Potable 1,135 / NNE Per municipality,no water connection.Well noticed on property. Assumed potable. WSW-23 1837 E. Garner Road, Raleigh, NC 1730184702 Broken Wing Fellowship Original Freewill Baptist Church 1009 Bent Oak Court, Raleigh, NC Unknown 1,320 / NW Well noticed on property.Fire hydrant nearby so possible that public water is available. WSW-24 2029 Auburn Road, Raleigh, NC 1730177672 Taylor, Thornton and Nancy 2029 Auburn Road, Raleigh, NC Potable 352 / NW Well was sampled. WSW-25 1829 E. Garner Road, Raleigh, NC 1730181773 McLawhorn, Benny 1829 E. Garner Road, Raleigh, NC Unknown 1,496 / NW Well noticed on property.Fire hydrant nearby so possible that public water is available. WSW-26 3101 Antelope Lane, Raleigh, NC 1730285543 Bannister, David W. P.O. Box 324, Garner, NC Potable 1,480 / NW Per municipality,no water connection.Well noticed on property. Assumed potable. NCDEQ; 10538_William Watts Store; T2_Receptor Info CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 Page 4 of 4 TABLE 2 Incident Name and No.: William Watts Store - 10538 PUBLIC AND PRIVATE WATER SUPPLY WELLS AND OTHER RECEPTOR INFORMATION Receptor ID Distance/ Direction from Source Area (ft.) CREEK 1 410 / N CREEK 2 555 / SE CREEK 3 583 / E Information obtained from field survey conducted on September 10, 2021 and Wake County GIS Viewer (iMaps). ft. = feet Description Runoff / small creek that runs away from the site. Runoff / small creek that runs away from the site. Runoff / small creek that runs away from the site. Location NW to NE of site Southeast of site East of site NCDEQ; 10538_William Watts Store; T2_Receptor Info CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 Page 1 of 1 TABLE 3 WELL CONSTRUCTION AND HISTORICAL WATER LEVEL GAUGING DATA Incident Name and No.: William Watts Store - 10538 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.) 09/08/21 NMT 12.84 83.56 03/10/22 NMT 13.24 83.16 07/13/23 NMT 12.72 83.68 MW-2 01/23/06 09/08/21 2.0 5.0 5.0-20.0 20.0 97.18 NMT 13.57 83.61 09/08/21 NMT 12.94 83.58 03/10/22 NMT 13.35 83.17 07/13/23 NMT 12.83 83.69 09/08/21 NMT 13.67 83.24 03/10/22 NMT 13.82 83.09 07/13/23 NMT 13.38 83.53 MW-5 09/08/10 09/08/21 2.0 10.0 10.0-20.0 20.0 97.90 NMT 13.97 83.93 09/08/21 NMT 10.65 83.42 03/10/22 NMT 11.04 83.03 07/13/23 NMT 10.62 83.45 MW-8 08/07/14 09/08/21 2.0 5.0 5.0-20.0 20.0 91.31 NMT 8.50 82.81 09/08/21 NMT 8.90 83.28 03/10/22 NMT 9.16 83.02 07/13/23 NMT 8.83 83.35 NMT = No Measurable Thickness * = Data obtained from S&ME (2018). 20.0 96.40 5.0 5.0-20.0 20.0 96.52 ** = 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] ft. BLS = feet Below Land Surface MW-7 08/07/14 MW-9 08/07/14 2.0 5.0 5.0-20.0 20.0 5.0 5.0-20.0 20.0 92.18 2.0 2.0 2.0 2.0 94.07 MW-1 09/28/05 MW-3R 10/01/16 MW-4 09/08/10 10.0 10.0-20.0 20.0 96.91 7.0 7.0-20.0 NCDEQ; 10538_William Watts Store; T3_Well Construction & Gauging CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 Page 1 of 1 TABLE 4 SUMMARY OF GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B Incident Name and No.: William Watt's Store - 10538 Well Type Well/ Sample ID Date Collected MW-1 07/13/23 <2.0 <0.18 <0.15 <0.13 <0.14 0.23 J <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL MW-3R 07/13/23 <2.0 <0.18 <0.15 <0.13 <0.14 <0.14 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL MW-4 07/13/23 <2.0 <0.18 5.9 5.0 1.5 <0.14 34 14 11 <0.17 21 15 <0.17 160 7.2 5.78 J BMDL MW-7 07/13/23 <2.0 <0.18 <0.15 <0.13 <0.14 <0.14 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL MW-9 07/13/23 <2.0 <0.18 <0.15 <0.13 <0.14 <0.14 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL WSW-9 I 07/13/23 <2.0 48 0.33 J 0.38 J 0.31 J <0.14 <0.22 4.0 <0.13 0.19 J 30 <0.12 0.29 J 0.84 <0.15 <0.73 BMDL WSW-9 E 07/13/23 <2.0 <0.18 <0.15 <0.13 <0.14 <0.14 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL WSW-12 07/13/23 <2.0 <0.18 <0.15 <0.13 <0.14 <0.14 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL WSW-24 07/13/23 <2.0 <0.18 <0.15 <0.13 <0.14 <0.14 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL 07/13/23 3.0 J <0.18 <0.15 <0.13 <0.14 <0.14 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL 07/13/23 <2.0 <0.18 <0.15 <0.13 <0.14 <0.14 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.20 <0.15 <0.73 BMDL All results in micrograms per liter (µg/L). BMDL = Below Method Detection Limit (refer to analytical report for a complete list of analytes and detection limits) I / E = Influent / Effluent GCL = Gross Contaminant Level 2L GWQS = NCAC T15A:02L Groundwater Quality Standards Bold results indicate concentrations above 2L GWQS. < = Less than Method Detection Limit J = Detected but below the Reporting Limit (lowest calibration standard); result is an estimated concentration (CLP J-Flag). GCL (µg/L) 2L GWQS (µg/L) 6,000,000 6,000 5,000 1 tert-Butylbenzene 5,900 70 8,800 70 14,750 70MonitoringWater SupplyField Blank / FB Contaminant of Concern Acetone Benzene sec-Butylbenzene n-ButylbenzeneEthylbenzenep-Isopropyltoluene(p-Cymene)Chloroform Trip Blank / TB 28,500 400 700 0.7 20,000 20 Naphthalene Isopropylbenzene (Cumene)All Other SM 6200B AnalytesTetrachloroethylene70,000 70 1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenen-PropylbenzeneTotal XylenesMethyl tert-Butyl Ether (MTBE)Varies Varies 80,000 600 30,500 70 11,700 25 6,000 6 26,100 70 50,000 500 24,100 400 NCDEQ; 10538_William Watts Store; T4_GW Results CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 Page 1 of 1 TABLE 5 SUMMARY OF HISTORICAL GROUNDWATER LABORATORY RESULTS — STANDARD METHOD 6200B Incident Name and No.: William Watt's Store - 10538 Well Type Well/ Sample ID Date Collected (mm/dd/yy) 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL 03/10/22 <2.0 <0.20 <1.6 <0.15 <0.11 <0.13 BMDL <0.31 <0.21 <0.11 <0.097 <0.17 <0.24 <0.086 <0.19 <0.22 <0.20 <0.11 <0.69 BMDL 07/13/23 <2.0 <0.18 <1.7 <0.15 <0.13 <0.14 0.23 J <0.30 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.22 <0.20 <0.15 <0.73 BMDL MW-2 09/08/21 <2.4 <0.13 <1.9 <0.14 0.13 J <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL <0.11 0.12 J <0.10 <0.27 BMDL 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL 03/10/22 <2.0 <0.20 <1.6 <0.15 <0.11 <0.13 BMDL <0.31 <0.21 <0.11 <0.097 <0.17 <0.24 <0.086 <0.19 <0.22 <0.20 <0.11 <0.69 BMDL 07/13/23 <2.0 <0.18 <1.7 <0.15 <0.13 <0.14 <0.14 <0.30 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.22 <0.20 <0.15 <0.73 BMDL 09/08/21 <9.4 <0.52 <7.5 11 4.4 1.5 J BMDL <1.30 ƚ 110 20 13 BMDL 46 17 BMDL 0.60 J 280 69 80.90 BMDL 03/10/22 11 J <0.80 36 18 8.1 2.7 BMDL <1.2 ƚ 160 30 25 <0.69 67 31 <0.75 ƚ <0.90 480 78 59.3 BMDL 07/13/23 <2.0 <0.18 <1.7 5.9 5.0 1.5 <0.14 <0.30 34 14 11 <0.17 21 15 <0.17 <0.22 160 7.2 5.78 J BMDL MW-5 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL 03/10/22 <2.0 <0.20 <1.6 <0.15 <0.11 <0.13 BMDL <0.31 <0.21 <0.11 <0.097 <0.17 <0.24 <0.086 <0.19 <0.22 <0.20 <0.11 <0.69 BMDL 07/13/23 <2.0 <0.18 <1.7 <0.15 <0.13 <0.14 <0.14 <0.30 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.22 <0.20 <0.15 <0.73 BMDL MW-8 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL 0.12 J <0.10 <0.10 <0.27 BMDL 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL 0.11 J <0.10 <0.10 <0.27 BMDL 03/10/22 <2.0 <0.20 <1.6 <0.15 <0.11 <0.13 BMDL <0.31 <0.21 <0.11 <0.097 <0.17 <0.24 <0.086 <0.19 <0.22 <0.20 <0.11 <0.69 BMDL 07/13/23 <2.0 <0.18 <1.7 <0.15 <0.13 <0.14 <0.14 <0.30 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.22 <0.20 <0.15 <0.73 BMDL 09/08/21 <2.4 32 <1.9 0.22 J 0.32 J 0.33 J BMDL 1.6 <0.090 4.0 <0.090 BMDL 29 <0.080 BMDL 0.12 J 0.85 <0.10 0.29 J BMDL 03/10/22 <2.0 61 <1.6 0.46 J 0.60 0.52 BMDL <0.31 <0.21 6.1 0.48 J 0.29 J 43 <0.086 0.38 J <0.22 1.6 <0.11 <0.69 BMDL 07/13/23 <2.0 48 <1.7 0.33 J 0.38 J 0.31 J <0.14 <0.30 <0.22 4.0 <0.13 0.19 J 30 <0.12 0.29 J <0.22 0.84 <0.15 <0.73 BMDL 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL 03/10/22 <2.0 <0.20 <1.6 <0.15 <0.11 <0.13 BMDL <0.31 <0.21 <0.11 <0.097 <0.17 <0.24 <0.086 <0.19 <0.22 <0.20 <0.11 <0.69 BMDL 07/13/23 <2.0 <0.18 <1.7 <0.15 <0.13 <0.14 <0.14 <0.30 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.22 <0.20 <0.15 <0.73 BMDL 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL 03/10/22 <2.0 <0.20 <1.6 <0.15 <0.11 <0.13 BMDL <0.31 <0.21 <0.11 <0.097 <0.17 <0.24 <0.086 <0.19 <0.22 <0.20 <0.11 <0.69 BMDL 07/13/23 <2.0 <0.18 <1.7 <0.15 <0.13 <0.14 <0.14 <0.30 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.22 <0.20 <0.15 <0.73 BMDL 09/08/21 <2.4 <0.13 <1.9 <0.14 <0.10 <0.090 BMDL <0.32 <0.090 <0.10 <0.090 BMDL <0.15 <0.080 BMDL <0.11 <0.10 <0.10 <0.27 BMDL 03/10/22 <2.0 <0.20 <1.6 <0.15 <0.11 <0.13 BMDL <0.31 <0.21 <0.11 <0.097 <0.17 <0.24 <0.086 <0.19 <0.22 <0.20 <0.11 <0.69 BMDL 07/13/23 <2.0 <0.18 <1.7 <0.15 <0.13 <0.14 <0.14 <0.30 <0.22 <0.15 <0.13 <0.17 <0.38 <0.12 <0.17 <0.22 <0.20 <0.15 <0.73 BMDL All results in micrograms per liter (µg/L). BMDL = Below Method Detection Limit (refer to analytical report for a complete list of analytes and detection limits) GCL = Gross Contaminant Level 2L GWQS = NCAC T15A:02L Groundwater Quality Standards Bold results indicate concentrations above 2L GWQS.< = Less than Method Detection Limit 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). 400 0.4 GCL (µg/L) 2L GWQS (µg/L) 6,000,000 6,000 5,000 1 4,000,000 4,000 5,900 70 8,800 70 14,750 70 70,000 70 28,500 400 24,100 400 50,000 500 Varies Varies 80,000 600 30,500 70 11,700 25 6,000 6 26,100 70 260,000 600 20,000 20 700 0.7 All Other SM 6200B Analytestert-Butylbenzene 1,2-Dichloroethane EthylbenzeneIsopropylbenzene (Cumene)p-Isopropyltoluene(p-Cymene)Naphthalene n-PropylbenzeneToluene 1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal XylenesMethyl tert-Butyl Ether (MTBE)TetrachloroethyleneChloroform sec-Butylbenzene Contaminant of Concern Acetone Benzene 2-Butanone (MEK)n-ButylbenzeneMonitoringWSW-9 Influent WSW-9 Effluent WSW-12Water SupplyWSW-24 MW-1 MW-3R MW-4 MW-7 MW-9 NCDEQ; 10538_William Watts Store; T5_Historical GW Results CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 FIGURES FIGUREPROJECTTITLE 1WILLIAM WATTS STORE2100 AUBURN ROADRALEIGH, NC SITE VICINITY MAP SITE LOCATION INTERSTATE 40 AUBURN RD Copyright:© 2013 National Geographic Society, i-cubed 2,000 0 2,000 4,0001,000 Feet ³ INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10538221081AUG 2023 AS SHOWN KMC/SJO FIGUREPROJECTTITLE 2WILLIAM WATTS STORE2100 AUBURN ROADRALEIGH, NC POTENTIAL RECEPTOR MAP !(P !(P !(P !(P !(P !(P !(P !(P !(P!(P !(P !(P !(P !(P !(P !(P !(P !(P!(P !(P !(P !(P !(P !(P SITE LOCATION 1 ,5 0 0 F EET RADIUS INTERSTATE 40 AUBURN RD WSW-6 WSW-7WSW-24 WSW-12 WSW-9 WSW-3 WSW-2WSW-18 WSW-22 WSW-20 WSW-17 WSW-19 WSW-25 WSW-24 WSW-14 WSW-21 WSW-5 WSW-11 WSW-15 WSW-16 WSW-13 WSW-8WSW-4 WSW-26 500F E E T RADIUS CREEK 2 CREEK 3 CREEK 1 Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 500 0 500 1,000250 Feet ³ NOTE: Well locations were obtained from a field survey conducted on September 10, 2021 and are approximate. LEGEND !(P Active Potable Water Supply Well INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10538221081AUG 2023 AS SHOWN KMC/SJO FIGUREPROJECTTITLE 3WILLIAM WATTS STORE2100 AUBURN ROADRALEIGH, NC SITE MAP !> !> !> !>!>!>!> !>!> !> AUBURN RD MW-8 MW-7 MW-9 MW-4 MW-1 MW-3 MW-6DMW-3R MW-2 MW-5 FORMERDISPENSER ISLAND FORMER 550-GAL.KEROSENE UST FORMER 1,000-GAL.GASOLINE UST Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 30 0 30 6015 Feet ³ NOTE: Well and tank locations were obtained from previous reports prepared by other consultants and are approximate. INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10538221081AUG 2023 AS SHOWN KMC/SJO Parcel Boundary LEGEND Monitoring Well (Type II)!> Approximate Location of Former UST System Abandoned Monitoring Well (Type II)!> FIGUREPROJECTTITLE 4WILLIAM WATTS STORE2100 AUBURN ROADRALEIGH, NC GROUNDWATER ELEVATION –JULY 13, 2023 !> !> !> !> !> !>!> !><AUBURN RD MW-8 MW-7(83.45) MW-9(83.35) MW-4(83.53) MW-1(83.68) MW-3R(83.69) MW-2 MW-583.5083.6083.40Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 30 0 30 6015 Feet ³ 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 0.10 feet. INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10538221081AUG 2023 AS SHOWN KMC/SJO Parcel Boundary LEGEND Monitoring Well(Type II)!> Approximate Location of Former UST System Gauged Monitoring Well (Type II)!> Groundwater FlowDirection Groundwater Contour<Groundwater Elevation (Feet)(##) FIGUREPROJECTTITLE 5WILLIAM WATTS STORE2100 AUBURN ROADRALEIGH, NC MONITORING WELLGROUNDWATER SAMPLEANALYTICAL RESULTS –JULY 13, 2023 !> !> !> !> !> !>!> !> AUBURN RD MW-8 MW-7 MW-9 MW-4 MW-1 MW-3R MW-2 MW-5 Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 30 0 30 6015 Feet ³ NOTE: Well and tank locations were obtained from previous reports prepared by other consultants and are approximate. INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10538221081AUG 2023 AS SHOWN KMC/SJO Parcel Boundary LEGEND Monitoring Well(Type II)!> Approximate Location of Former UST System Sampled Monitoring Well (Type II)!> DateCollected 07/13/23 <0.3807/13/23 <0.3807/13/23 2107/13/23 <0.3807/13/23 <0.38 All results in micrograms per liter (µg/L).Bold results are above 2L GWQS. Refer to Table 4 for all results and notes. SUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B 6,0006Naphthalene Incident Name and No.: William Watts Store - 10538 GCL (µg/L)2L GWQS (µg/L) Contaminant of Concern MW-4 Well/ SampleIDMW-1MW-3R MW-7MW-9 FIGUREPROJECTTITLE 6WILLIAM WATTS STORE2100 AUBURN ROADRALEIGH, NC WATER SUPPLY WELLGROUNDWATER SAMPLEANALYTICAL RESULTS –JULY 13, 2023 !(P !(P !(P !(P !(P !(P !(P !(P !(P!(P !(P !(P !(P !(P !(P !(P !(P !(P!(P !(P !(P !(P !(P !(P AUBURN RD WSW-8WSW-4 WSW-5 WSW-9 WSW-3 WSW-2 WSW-7 WSW-6 WSW-26 WSW-16 WSW-15 WSW-11 WSW-13 WSW-14 WSW-21 WSW-23 WSW-25 WSW-22 WSW-20 WSW-19 WSW-17 WSW-24 WSW-12 WSW-18 Source: Esri, Maxar, Earthstar Geographics, and the GIS User Community 300 0 300 600150 Feet ³ NOTE: Well locations were obtained from a field survey conducted on September 10, 2021 and are approximate. INCIDENT NO.JOB NO.DATE SCALE DRAWN BY/CHECKED BY10538221081AUG 2023 AS SHOWN KMC/SJO LEGEND !(P Active PotableWater Supply Well !(P Sampled PotableWater Supply Well Parcel Boundary DateCollected 07/13/23 48 0.33 J 0.38 J 0.31 J 4.0 0.19 J 30 0.29 J 0.8407/13/23 <0.18 <0.15 <0.13 <0.14 <0.15 <0.17 <0.38 <0.17 <0.2007/13/23 <0.18 <0.15 <0.13 <0.14 <0.15 <0.17 <0.38 <0.17 <0.2007/13/23 <0.18 <0.15 <0.13 <0.14 <0.15 <0.17 <0.38 <0.17 <0.20 All results in micrograms per liter (µg/L).Bold results are above 2L GWQS. Refer to Table 4 for all results and notes. 28,500400 WSW-12WSW-9 EWSW-9 I 5,0001 WSW-24 GCL (µg/L)2L GWQS (µg/L) 6,00065,90070 8,80070 14,75070 30,50070 20,00020 7000.7 SUMMARY OF GROUNDWATER LABORATORY RESULTS - STANDARD METHOD 6200B Contaminant of Concern 1,2,4-TrimethylbenzeneWell/ SampleID Benzene Incident Name and No.: William Watts Store - 10538 Naphthalene n-Butylbenzenesec-Butylbenzene tert-Butylbenzene Isopropylbenzene (Cumene)Methyl tert-Butyl Ether (MTBE)Tetrachloroethylene NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 APPENDICES NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 APPENDIX A HISTORICAL DATA TABLE 1UST OWNER/OPERATOR INFORMATIONUST Incident Name (Incident No. 10538, UST #: RA-1717)2100 Auburn Road, Raleigh, Wake County, North CarolinaS&ME Project # 4305-17-132AUST Facility ID # RA-171712Notes:Information collected from Wake County GIS and The NCDEQ Regional Underground Storage Tank Database updated March 3, 2017Unknown3923 St. James Church Rd., Raleigh, NC 27604AddressIncidentNumberTelephone NumberOwner or Operator?UST/AST IDNumber(s)Name of Owner or OperatorDates of Ownership / OperationSamuel Watts Unknown to 7/30/1993 10538 BothAPPENDIX A HISTORICAL DATA (S&ME, 2017)NCDEQ; 10538_William Watts Store CATLIN Project No. 221081CATLIN Engineers and Scientists August 2023 TABLE 2UST INFORMATIONUST Incident Name (Incident No. 10538, UST #: RA-1717)2100 Auburn Road, Raleigh, Wake County, North CarolinaS&ME Project # 4305-17-132AUST Facility ID # RA-1717USTID NumberCurrent/LastContents *PreviousContents *Capacity(gallons)Construction Details **Tank DimensionsD/L (ft)Description of Associated Piping and PumpsDate USTInstalled Status of UST ***Was ReleaseAssociated WithUST System?(Yes/No)1 Gasoline Gasoline 1,000 Unknown Unknown Unknown Unknown Permanently closed by removal (7/30/93) Yes2 Kerosene Kerosene 500 Unknown Unknown Unknown Unknown Permanently closed by removal (7/30/93) YesAPPENDIX A HISTORICAL DATA (S&ME, 2017)NCDEQ; 10538_William Watts Store CATLIN Project No. 221081CATLIN Engineers and Scientists August 2023 TABLE 3 MONITORING WELL CONSTRUCTION DATA AND GROUNDWATER ELEVATIONS UST Facility ID # RA-1717 Well ID Date Installed Date Water Level Measured Well Casing Depth (ft BGS) Well Casing Diameter (in) Depth of Well (ft-BGS) Top of Casing Elevation* (ft) Depth to Water from Top of Casing (ft) Free Product Thickness (ft) Groundwater Elevation (ft) Latitude (decimal) Longitude (decimal) 11/11/08 15.20 0.00 81.20 09/08/10 13.16 0.00 83.24 08/07/14 11.94 0.00 84.46 10/13/16 12.04 0.00 84.36 12/21/17 15.13 0.00 81.27 11/11/08 15.98 0.00 81.20 09/08/10 13.89 0.00 83.29 08/07/14 12.57 0.00 84.61 10/13/16 12.80 0.00 84.38 12/21/17 15.92 0.00 81.26 11/11/08 15.36 0.00 81.51 09/08/10 13.60 0.00 83.27 08/07/14 12.44 0.00 84.43 Well Abandoned 10/13/16 12.15 0.00 84.37 12/21/17 15.22 0.00 81.30 09/09/10 13.70 0.00 83.21 08/07/14 12.62 0.00 84.29 10/13/16 12.64 0.00 84.27 12/21/17 15.60 0.00 81.31 09/09/10 14.57 0.00 83.33 08/07/14 13.16 0.00 84.74 10/13/16 13.34 0.00 84.56 12/21/17 16.68 0.00 81.22 09/09/10 13.96 0.00 83.23 08/08/14 12.88 0.00 84.31 Well Abandoned 08/08/14 9.85 0.00 84.22 10/14/16 9.79 0.00 84.28 12/21/17 12.79 0.00 81.28 08/08/14 7.83 0.00 83.48 10/13/16 7.57 0.00 83.74 12/21/17 10.21 0.00 81.10 08/08/14 8.05 0.00 84.13 10/13/16 8.02 0.00 84.16 12/21/17 10.93 0.00 81.25 ft = feet in = inches ft-BGS = feet below ground surface -78.553000 -78.555275 35.692991 35.693041 -78.555291 -78.555367 35.692935 35.693001 30.0 94.07 -78.555492 35.692922 -78.555129 35.692998 -78.555264 -78.555254 35.693312 -78.555532 35.693151 35.693082 Well Abandoned Well Abandoned 5-20 10-20 97.19 96.52 96.8720.05-20 97.1820.05-20 9/8/2010 2.0 97.9020.0 20.0 20.0 96.912.0 2.01/23/2006 2.010/1/2016 9/8/2010 UST Incident Name (Incident No. 10538, UST #: RA-1717) Screen Interval (ft-BGS) MW-1 9/28/2005 2.0 20.0 96.400-7 7-20 -78.555412 2100 Auburn Road, Raleigh, Wake County, North Carolina S&ME Project # 4305-17-132A 1/23/2006 35.692927 MW-2 MW-3R MW-9 MW-5 44.0 10-20 39-44 5-20 MW-6D 9/9/2010 2.0 MW-7 8/7/2014 2.0 2.00-10 0-39 0-5 MW-4 0-5 0-5 0-5 0-10 MW-3 2.0 92.1820.0 MW-8 8/7/2014 2.08/7/2014 0-5 0-5 5-20 5-20 20.0 91.31 APPENDIX A HISTORICAL DATA (S&ME, 2017) NCDEQ; 10538_William Watts Store CATLIN Project No. 221081 CATLIN Engineers and Scientists August 2023 UST Facility ID # RA-1717Well IDAddressOwnerApproximate Distance and Direction from SiteWell In UseWSW-24736 Gin Street Carolyn Christmas and James Ralph Wright462 feet southwestYesWSW-34721 Gin Street Ewarja Dasberey and Johgre J. L. Hinton505 feet south, southwestYesWSW-6 2017 E. Garner RoadJPWR Properties LLC313 feet northYesWSW-7 2021 E. Garner RoadJPWR Properties LLC240 feet northeastYesWSW-94710 Gin StreetJohn Henry Jr. and Larry Carlton Woods 300 feet south, southwest YesWSW-12 2020 Auburn Road Charlene B. Newkirk 240 feet southwest YesWSW-18 2208 Auburn Road Mindy Anne Howell 565 feet southeast YesWSW-24 2029 Auburn Road Hazel McClamb 272 feet northwest YesNotes:Information collected from Wake County GIS Parcel Data, dated September 2017WATER SUPPLY WELL INFORMATIONTABLE 4S&ME Project # 4305-17-132A2100 Auburn Road, Raleigh, Wake County, North CarolinaUST Incident Name (Incident No. 10538, UST #: RA-1717)APPENDIX A HISTORICAL DATA (S&ME, 2017)NCDEQ; 10538_William Watts Store CATLIN Project No. 221081CATLIN Engineers and Scientists August 2023 TABLE 5SUMMARY OF HISTORICAL AND CURRENT GROUNDWATER ANALYTICAL RESULTSUST Incident Name (Incident No. 10538, UST #: RA-1717)2100 Auburn Road, Raleigh, Wake County, North CarolinaS&ME Project # 4305-17-132AUST Facility ID # RA-1717Standard Method 6200B or equivalentWellIDDateCollected11/11/2008 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA9/8/2010 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA8/7/2014 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA10/13/2016 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA12/21/2017 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 0.75 J11/11/2008 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA9/8/2010 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA8/7/2014 NA --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA10/13/2016 14 J --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA12/21/2017 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---11/11/2008 --1.5 40 140 800--- ---6.5 2 200 33---21 430 150---1.5NA9/8/2010 ---1.7 39 273 1,451--- --- --- ---324 58.8---55.6 788 235--- --- NA8/7/2014 NA ---44.6 219 1,095--- --- --- ---249 35.4---36.3 533 188--- --- NA10/14/2016 26 J ---0.49 0.7 5--- 0.27 J --- --- 0.83 ---0.17 J0.27 J4.4 1.8--- --- NA12/21/2017 --- --- --- ---1.3--- --- --- --- 1.8 0.200.17---3.0 0.14--- --- ---9/9/2010 --- ---5.8 69.5 256--- --- --- ---98.5 26.3---22.6490189--- --- NA8/7/2014 NA ---3.8 15.8 86.1--- --- --- ---20.6 10.8---5.7 2.9 55--- --- NA10/13/2016 --- 0.3810 38 160 3.2 J 20 5.9 1.7 26 15 18 11.0 150 79--- --- NA12/21/2017 -- ---6.6 43 118 20 15 3.6 1.3 37 11 15 9.0 200 60--- --- ---9/9/2010 -- -- -- -- --- --- --- --- --- --- --- --- --- --- --- --- --- NA8/7/2014 -- -- -- -- --- --- --- --- --- --- --- --- --- --- --- --- --- NA10/13/2016 11 J -- -- -- --- --- --- --- --- --- --- --- --- --- --- --- --- NA12/21/2017 11 J --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- 0.23 J9/10/2010 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA8/8/2014 NA --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA8/8/2014 NA --- ---2--- --- --- --- --- --- --- --- --- --- --- --- --- NA10/14/2016 7.9 J --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA12/21/2017 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---8/8/2014 NA --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA10/14/2016 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA12/21/2017 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---8/8/2014 NA --- --- ---20--- --- --- --- --- --- --- --- --- --- --- --- NA10/13/2016 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- NA12/21/2017 --- --- 0.31 J --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---WSW-9 12/21/2017 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---WSW-9 Effluent 12/27/2017 --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---WSW-9 Influent 12/27/2017 ---58--- --- 0.65 J --- 0.47 J 0.41 J 0.37 J42 3.5--- --- --- ---2.2--- ---6,000 1 600 600 500 4,000 70 70 70 6 70 25 70 400 400 70 70 706,000,000 5,000 260,000 84,500 85,500 4,000,000 6,900 8,500 15,000 6,000 25,000 11,700 30,000 28,500 25,000 70,000 70,000 70,000Notes:Analytes that are not shown for the method were not detected.Concentrations are reported in micrograms per liter (μg/L).2L Standard: North Carolina Groundwater Quality Standards: 15A NCAC 2L.0202Concentrations exceeding the 2L Standards are shown in Shaded and BOLD fields.Concentrations exceeding the laboratory's reporting limits are shown in BOLD fields.NA: Analysis for sample not requested.GCL - Gross Contamination Level--- : Not detected above laboratory reporting limits.ChloroformTotal Xylenes1,2,4-Trimethylbenzenen-Propylbenzene1,3,5-TrimethylbenzeneStyrene1,2-DichloroethaneAnalytical Method ĺContaminant of Concern ĺp-Isopropyltoluenesec-butylbenzeneNaphthalenetert-butylbenzene2-ButanoneIsopropylbenzenen-butylbenzeneEthylbenzeneTolueneAcetoneBenzene2L Standard (μg/L) GCL (μg/L) MW-5MW-3RMW-1MW-2MW-4MW-3MW-9MW-6DMW-7MW-8APPENDIX A HISTORICAL DATA (S&ME, 2017)NCDEQ; 10538_William Watts Store CATLIN Project No. 221081CATLIN Engineers and Scientists August 2023 NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 APPENDIX B SITE PHOTOGRAPHS APPENDIX B SITE PHOTOGRAPHS – JULY 13, 2023 NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 View of site, facing south-southwest. View of MW-1, facing south-southwest. APPENDIX B SITE PHOTOGRAPHS – JULY 13, 2023 NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 View of MW-3R, facing south-southwest. View of MW-4, facing east. APPENDIX B SITE PHOTOGRAPHS – JULY 13, 2023 NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 View of MW-7, facing west-northwest. View of MW-9, facing north. APPENDIX B SITE PHOTOGRAPHS – JULY 13, 2023 NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 View of system for WSW-9. Closer view of sampling points labelled. APPENDIX B SITE PHOTOGRAPHS – JULY 13, 2023 NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 View of sampling point for WSW-12. NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 APPENDIX C DAILY ACTIVITIES LOG AND FIELD DATA SHEETS CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: MW-1 7.28 12.72 1.188 NMT 3.564 20 5.940 2 Method:Bailer Purge Start Time:11:28 Required Bails for 3 Well Volumes:15 Purge Stop Time:11:44 Required Bails for 5 Well Volumes:25 Was Well Purged Dry?Yes Number of Bails Removed:12.5 Sample Time:11:48 Groundwater Removed (gal):3.0 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) 11:29 191.76 6.79 6.74 174.81 19.87 11:30 210.40 6.08 6.28 197.46 18.42 11:31 211.78 6.15 6.22 204.12 18.25 11:32 212.13 6.19 6.18 207.70 18.20 11:33 212.82 6.20 6.15 210.58 18.18 11:34 213.00 6.20 6.13 213.08 18.20 11:35 213.21 6.21 6.11 214.85 18.21 11:36 213.18 6.22 6.09 216.48 18.23 11:37 213.15 6.22 6.08 217.59 18.24 11:38 213.15 6.22 6.07 218.55 18.24 11:39 213.06 6.22 6.06 219.18 18.25 11:40 213.06 6.22 6.05 219.82 18.27 11:41 213.91 6.28 6.02 221.98 18.42 11:42 212.27 6.34 6.04 222.09 18.29 11:43 212.53 6.40 6.04 222.45 18.26 Laboratory: Con-Test Analysis: Well Data Well ID Depth to Product (ft below TOC) Total Well Depth (ft) Purging Information Information Volume of Groundwater in Well Well Diameter (inches) GROUNDWATER SAMPLING FORM Water Column (ft below TOC) One Well Volume (gal) Three Well Volumes (gal) Five Well Volumes (gal) 6200B Laboratory Analysis Information Geochemical Parameters Depth to Water (ft below TOC) Mild turbidity; light tan. dry at 12.5 bails Aqua TROLL 600 Turbidity and Additional Sampling Notes NCDEQ-SPL; Petermann Monitoring Well Information Nate Newman 7/13/2023 William Watts Store 221081.01 CATLIN PROJECT: SAMPLED BY: CATLIN PROJECT # : DATE SAMPLED: CLIENT'S NAME: MW-3R 7.17 12.83 1.170 NMT 3.510 20 5.851 2 Method:Bailer Purge Start Time:11:03 Required Bails for 3 Well Volumes:15 Purge Stop Time:11:18 Required Bails for 5 Well Volumes:25 Was Well Purged Dry?No Number of Bails Removed:15 Sample Time:11:18 Groundwater Removed (gal):3.6 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) 11:04 506.66 3.71 6.42 201.76 19.72 11:05 340.84 3.87 6.44 200.80 19.39 11:06 945.26 4.08 6.46 200.64 19.21 11:07 651.34 4.26 6.46 201.35 19.13 11:08 1127.02 4.40 6.46 201.88 19.12 11:09 1127.79 4.53 6.45 202.79 19.09 11:10 1130.42 4.59 6.44 203.69 19.13 11:11 1130.38 4.59 6.43 204.48 19.23 11:12 1129.10 4.59 6.43 205.09 19.23 11:13 1125.94 4.54 6.43 205.69 19.44 11:14 1130.02 4.47 6.42 206.41 19.47 11:15 1129.91 4.52 6.42 206.73 19.48 11:16 1130.56 4.57 6.42 207.05 19.56 Laboratory: Con-Test Analysis: Depth to Water (ft below TOC) One Well Volume (gal) GROUNDWATER SAMPLING FORM William Watts Store Nate Newman 221081.01 7/13/2023 NCDEQ-SPL; Petermann Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) 6200B Depth to Product (ft below TOC)Three Well Volumes (gal) Total Well Depth (ft) Five Well Volumes (gal) Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua TROLL 600 Turbidity and Additional Sampling Notes Moderate turbidity; light tan Laboratory Analysis Information CATLIN PROJECT: SAMPLED BY: CATLIN PROJECT # : DATE SAMPLED: CLIENT'S NAME: MW-4 6.62 13.38 1.080 NMT 3.241 20 5.402 2 Method:Bailer Purge Start Time:10:47 Required Bails for 3 Well Volumes:14 Purge Stop Time:10:55 Required Bails for 5 Well Volumes:23 Was Well Purged Dry?No Number of Bails Removed:14 Sample Time:10:55 Groundwater Removed (gal):3.4 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) 10:48 117.04 3.89 5.05 258.79 19.69 10:49 140.57 3.87 5.27 250.80 19.30 10:50 165.55 4.01 5.48 241.04 19.15 10:51 164.93 4.06 5.47 240.84 19.15 10:52 167.77 4.08 5.47 240.58 19.21 10:53 168.84 4.10 5.45 242.40 19.24 Laboratory: Con-Test Analysis: Depth to Water (ft below TOC) One Well Volume (gal) GROUNDWATER SAMPLING FORM William Watts Store Nate Newman 221081.01 7/13/2023 NCDEQ-SPL; Petermann Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) 6200B Depth to Product (ft below TOC)Three Well Volumes (gal) Total Well Depth (ft) Five Well Volumes (gal) Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua TROLL 600 Turbidity and Additional Sampling Notes Moderate turbidity; light brown Laboratory Analysis Information CATLIN PROJECT: SAMPLED BY: CATLIN PROJECT # : DATE SAMPLED: CLIENT'S NAME: MW-7 9.38 10.62 1.531 NMT 4.592 20 7.654 2 Method:Bailer Purge Start Time:10:08 Required Bails for 3 Well Volumes:20 Purge Stop Time:10:18 Required Bails for 5 Well Volumes:32 Was Well Purged Dry?No Number of Bails Removed:20 Sample Time:10:18 Groundwater Removed (gal):4.8 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) 10:09 129.86 3.89 4.41 278.67 20.70 10:10 137.34 4.05 4.37 283.40 20.17 10:11 140.81 4.15 4.29 289.71 20.07 10:12 144.83 4.32 4.22 294.62 19.94 10:13 146.88 4.38 4.17 297.85 19.83 10:14 147.05 4.39 4.12 299.66 19.86 10:15 149.67 4.39 4.08 303.40 19.84 10:16 149.78 4.46 4.07 302.55 19.99 Laboratory: Con-Test Analysis: Depth to Water (ft below TOC) One Well Volume (gal) GROUNDWATER SAMPLING FORM William Watts Store Nate Newman 221081.01 7/13/2023 NCDEQ-SPL; Petermann Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) 6200B Depth to Product (ft below TOC)Three Well Volumes (gal) Total Well Depth (ft) Five Well Volumes (gal) Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua TROLL 600 Turbidity and Additional Sampling Notes Light turbidity; light tan Laboratory Analysis Information CATLIN PROJECT: SAMPLED BY: CATLIN PROJECT # : DATE SAMPLED: CLIENT'S NAME: MW-9 11.17 8.83 1.823 NMT 5.469 20 9.115 2 Method:Bailer Purge Start Time:10:29 Required Bails for 3 Well Volumes:23 Purge Stop Time:10:37 Required Bails for 5 Well Volumes:38 Was Well Purged Dry?No Number of Bails Removed:23 Sample Time:10:37 Groundwater Removed (gal):5.5 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) 10:30 261.30 4.55 5.51 232.44 20.48 10:31 253.74 4.62 5.50 233.31 20.12 10:32 248.38 4.69 5.47 235.65 19.91 10:33 247.11 4.71 5.45 237.77 19.81 10:34 246.81 4.74 5.44 239.02 19.69 10:35 246.95 4.80 5.43 240.22 19.66 10:36 247.06 4.86 5.43 239.88 19.70 Laboratory: Con-Test Analysis: Depth to Water (ft below TOC) One Well Volume (gal) GROUNDWATER SAMPLING FORM William Watts Store Nate Newman 221081.01 7/13/2023 NCDEQ-SPL; Petermann Monitoring Well Information Well Data Volume of Groundwater in Well Well ID Water Column (ft below TOC) 6200B Depth to Product (ft below TOC)Three Well Volumes (gal) Total Well Depth (ft) Five Well Volumes (gal) Well Diameter (inches) Purging Information Information Geochemical Parameters Aqua TROLL 600 Turbidity and Additional Sampling Notes Moderate turbidity; light brown Laboratory Analysis Information CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: WSW-2 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) Laboratory: Con-Test Analysis: Purge Stop Time Screen Interval WATER SUPPLY WELL SAMPLING FORM William Watts Store Nate Newman 221081.01 7/13/2023 NCDEQ-SLP; Petermann Water Supply Well Purging Information Water Supply Well ID Well Depth Purge Start Time Well Diamater 6200B Was Well Purged Dry? Date Installled Sample Time Well Material Comments Knocked on door and did not get an answer. Do not have an access agreement. Geochemical Parameters Turbidity and Additional Sampling Notes Laboratory Analysis Information CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: WSW-9 Influent 13:38 13:53 No 13:53 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) Laboratory: Con-Test Analysis:6200B Laboratory Analysis Information William Watts Store 221081.01 NCDEQ-SLP; Petermann Nate Newman 7/13/2023 Comments No VuSitu Data. Geochemical Parameters Turbidity and Additional Sampling Notes Purge Stop Time Screen Interval Was Well Purged Dry? Date Installled Sample Time Well Material WATER SUPPLY WELL SAMPLING FORM Water Supply Well Purging Information Water Supply Well ID Well Depth Purge Start Time Well Diamater CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: WSW-9 Effluent 13:54 14:09 No 14:09 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) Laboratory: Con-Test Analysis:6200B Was Well Purged Dry? Date Installled Sample Time Well Material Comments No VuSitu data. Geochemical Parameters Turbidity and Additional Sampling Notes Laboratory Analysis Information Purge Stop Time Screen Interval WATER SUPPLY WELL SAMPLING FORM William Watts Store Nate Newman 221081.01 7/13/2023 NCDEQ-SLP; Petermann Water Supply Well Purging Information Water Supply Well ID Well Depth Purge Start Time Well Diamater CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: WSW-12 13:16 13:31 No 13:31 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) Laboratory: Con-Test Analysis: Purge Stop Time Screen Interval WATER SUPPLY WELL SAMPLING FORM William Watts Store Nate Newman 221081.01 7/13/2023 NCDEQ-SLP; Petermann Water Supply Well Purging Information Water Supply Well ID Well Depth Purge Start Time Well Diamater 6200B Was Well Purged Dry? Date Installled Sample Time Well Material Comments Sample taken from spigot on house. No VuSitu data. Geochemical Parameters Turbidity and Additional Sampling Notes Laboratory Analysis Information CATLIN PROJECT:SAMPLED BY: CATLIN PROJECT # :DATE SAMPLED: CLIENT'S NAME: WSW-24 12:50 13:05 No 13:05 Equipment Used: Time pH (Standard Units) ORP (mV) Specific Cond. (µS/cm) Dissolved Oxygen (mg/L) Temperature (Co) Laboratory: Con-Test Analysis: Purge Stop Time Screen Interval WATER SUPPLY WELL SAMPLING FORM William Watts Store Nate Newman 221081.01 7/13/2023 NCDEQ-SLP; Petermann Water Supply Well Purging Information Water Supply Well ID Well Depth Purge Start Time Well Diamater 6200B Was Well Purged Dry? Date Installled Sample Time Well Material Comments Sample taken from spigot on well house. No VuSitu data. Geochemical Parameters Turbidity and Additional Sampling Notes Laboratory Analysis Information NCDEQ; 10538_William Watts Store CATLIN Engineers and Scientists CATLIN Project No. 221081 August 2023 APPENDIX D LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY DOCUMENT 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 July 26, 2023 Sean O’Neil CATLIN Engineers & Scientists 1044 Washington Street Raleigh, NC 27605 Project Location: Raleigh NC Client Job Number: Project Number: 221081.01 Laboratory Work Order Number: 23G1784 Enclosed are results of analyses for samples as received by the laboratory on July 14, 2023. If you have any questions concerning this report, please feel free to contact me. Sincerely, Kaitlyn A. Feliciano Project Manager Page 1 of 46 Table of Contents Table of Contents Sample Summary 3 Hits Only Report 4 Case Narrative 6 Sample Results 8 23G1784-01 8 23G1784-02 10 23G1784-03 12 23G1784-04 14 23G1784-05 16 23G1784-06 18 23G1784-07 20 23G1784-08 22 23G1784-09 24 23G1784-10 26 23G1784-11 28 Sample Preparation Information 30 QC Data 31 Volatile Organic Compounds by GC/MS 31 B346265 31 B346361 35 Flag/Qualifier Summary 39 Certifications 40 Chain of Custody/Sample Receipt 42 Page 2 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 ANALYTICAL SUMMARY 7/26/2023 CATLIN Engineers & Scientists 1044 Washington Street Raleigh, NC 27605 ATTN: Sean O’Neil 221081.01 23G1784 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 Raleigh NC 230713-3 MW-1 23G1784-01 Ground Water SM21-23 6200B MW-3R 23G1784-02 Ground Water SM21-23 6200B MW-4 23G1784-03 Ground Water SM21-23 6200B MW-7 23G1784-04 Ground Water SM21-23 6200B MW-9 23G1784-05 Ground Water SM21-23 6200B WSW-9 I 23G1784-06 Ground Water SM21-23 6200B WSW-9 E 23G1784-07 Ground Water SM21-23 6200B WSW-12 23G1784-08 Ground Water SM21-23 6200B WSW-24 23G1784-09 Ground Water SM21-23 6200B FB 23G1784-10 Field Blank SM21-23 6200B TB 23G1784-11 Trip Blank Water SM21-23 6200B [TOC_1]Sample Summary[TOC] Page 3 of 46 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:23G1784-02MW-3R No Results Detected Client ID:Lab ID:23G1784-04MW-7 No Results Detected Client ID:Lab ID:23G1784-05MW-9 No Results Detected Client ID:Lab ID:23G1784-07WSW-9 E No Results Detected Client ID:Lab ID:23G1784-08WSW-12 No Results Detected Client ID:Lab ID:23G1784-09WSW-24 No Results Detected Client ID:Lab ID:23G1784-11TB No Results Detected Con-Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary section of this report. Users must review this report in its entirety to determine data usability and assessment. Page 4 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 EXECUTIVE SUMMARY Client ID:Lab ID: Analyte Results/Qual RL Units Method 23G1784-01MW-1 DL Chloroform 0.23 0.50 g/L SM21-23 6200BJ0.14 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23G1784-03MW-4 DL 1,2,4-Trimethylbenzene 160 10 g/L SM21-23 6200B4.0 1,3,5-Trimethylbenzene 7.2 0.50 g/L SM21-23 6200B0.15 Ethylbenzene 34 0.50 g/L SM21-23 6200B0.22 Isopropylbenzene (Cumene)14 0.50 g/L SM21-23 6200B0.15 m+p Xylene 5.3 1.0 g/L SM21-23 6200B0.49 Naphthalene 21 0.50 g/L SM21-23 6200B0.38 n-Butylbenzene 5.9 0.50 g/L SM21-23 6200B0.15 n-Propylbenzene 15 0.50 g/L SM21-23 6200B0.12 o-Xylene 0.48 0.50 g/L SM21-23 6200BJ0.24 p-Isopropyltoluene (p-Cymene)11 0.50 g/L SM21-23 6200B0.13 sec-Butylbenzene 5.0 0.50 g/L SM21-23 6200B0.13 tert-Butylbenzene 1.5 0.50 g/L SM21-23 6200B0.14 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23G1784-06WSW-9 I DL 1,2,4-Trimethylbenzene 0.84 0.50 g/L SM21-23 6200B0.20 Benzene 48 0.50 g/L SM21-23 6200B0.18 Isopropylbenzene (Cumene)4.0 0.50 g/L SM21-23 6200B0.15 Methyl tert-Butyl Ether (MTBE)0.19 0.50 g/L SM21-23 6200BJ0.17 Naphthalene 30 0.50 g/L SM21-23 6200B0.38 n-Butylbenzene 0.33 0.50 g/L SM21-23 6200BJ0.15 sec-Butylbenzene 0.38 0.50 g/L SM21-23 6200BJ0.13 tert-Butylbenzene 0.31 0.50 g/L SM21-23 6200BJ0.14 Tetrachloroethylene 0.29 0.50 g/L SM21-23 6200BJ0.17 Client ID:Lab ID: Analyte Results/Qual RL Units Method 23G1784-10FB DL Acetone 3.0 50 g/L SM21-23 6200BJ2.0 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 46 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. [TOC_1]Case Narrative[TOC] SM21-23 6200B Qualifications: Reported result is estimated. Value reported over verified calibration range. Analyte & Samples(s) Qualified: E 1,2,4-Trimethylbenzene 23G1784-03[MW-4] Reported results are estimated. Analysis performed on a previously used vial. Analyte & Samples(s) Qualified: H-08 23G1784-03RE1[MW-4], 23G1784-04[MW-7], 23G1784-07[WSW-9 E] 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 Bromomethane 23G1784-01[MW-1], 23G1784-02[MW-3R], 23G1784-03[MW-4], 23G1784-05[MW-9], 23G1784-06[WSW-9 I], 23G1784-08[WSW-12], 23G1784-09[WSW-24], 23G1784-10[FB], 23G1784-11[TB], B346265-BLK1, B346265-BS1, B346265-BSD1, S090669-CCV1 Chloromethane 23G1784-01[MW-1], 23G1784-02[MW-3R], 23G1784-03[MW-4], 23G1784-05[MW-9], 23G1784-06[WSW-9 I], 23G1784-08[WSW-12], 23G1784-09[WSW-24], 23G1784-10[FB], 23G1784-11[TB], B346265-BLK1, B346265-BS1, B346265-BSD1, S090669-CCV1 Dichlorodifluoromethane (Freon 12) 23G1784-01[MW-1], 23G1784-02[MW-3R], 23G1784-03[MW-4], 23G1784-05[MW-9], 23G1784-06[WSW-9 I], 23G1784-08[WSW-12], 23G1784-09[WSW-24], 23G1784-10[FB], 23G1784-11[TB], B346265-BLK1, B346265-BS1, B346265-BSD1, S090669-CCV1 Naphthalene 23G1784-04[MW-7], 23G1784-07[WSW-9 E], B346361-BLK1, B346361-BS1, B346361-BSD1, S090781-CCV1 Trichlorofluoromethane (Freon 11) 23G1784-01[MW-1], 23G1784-02[MW-3R], 23G1784-03[MW-4], 23G1784-05[MW-9], 23G1784-06[WSW-9 I], 23G1784-08[WSW-12], 23G1784-09[WSW-24], 23G1784-10[FB], 23G1784-11[TB], B346265-BLK1, B346265-BS1, B346265-BSD1, S090669-CCV1 Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but the other is within limits. RPD between the two LFB/LCS results is within method specified criteria. Analyte & Samples(s) Qualified: L-07 2-Butanone (MEK) B346265-BS1 Vinyl Chloride B346265-BSD1 Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but the other is within limits. RPD outside of control limits. Reduced precision anticipated for any reported result for this compound. Analyte & Samples(s) Qualified: L-07A Ethanol B346265-BSD1 Page 6 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 The results of analyses reported only relate to samples submitted to the Con-Test Analytical Laboratory for testing. I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the best of my knowledge and belief, accurate and complete. Meghan E. Kelley Reporting Specialist Page 7 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-01 Field Sample #: MW-1 Sample Matrix: Ground Water Sampled: 7/13/2023 11:48 [TOC_2]23G1784-01[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 7/18/23 19:21 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/18/23 19:21 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 19:21 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 19:21 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 19:21 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 19:21 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 19:21 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/18/23 19:21 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/18/23 19:21 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/18/23 19:21 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 19:21 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 19:21 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 19:21 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 19:21 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane 0.23 0.50 7/18/23 19:21 MFFg/L0.14 7/18/23SM21-23 6200B1JChloroform ND 0.60 7/18/23 19:21 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 19:21 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 19:21 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 19:21 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 19:21 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 19:21 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 19:21 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 19:21 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 19:21 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 19:21 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 19:21 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 19:21 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 19:21 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 19:21 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 19:21 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 19:21 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 19:21 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/18/23 19:21 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 19:21 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/18/23 19:21 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/18/23 19:21 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 19:21 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 19:21 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) [TOC_1]Sample Results[TOC] Page 8 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-01 Field Sample #: MW-1 Sample Matrix: Ground Water Sampled: 7/13/2023 11:48 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 7/18/23 19:21 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene ND 0.50 7/18/23 19:21 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 19:21 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/18/23 19:21 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/18/23 19:21 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 19:21 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 19:21 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 19:21 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 19:21 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 19:21 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/18/23 19:21 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/18/23 19:21 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 19:21 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 19:21 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/18/23 19:21 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/18/23 19:21 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 99.0 7/18/23 19:2170-130 Toluene-d8 101 7/18/23 19:2170-130 4-Bromofluorobenzene 95.6 7/18/23 19:2170-130 Page 9 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-02 Field Sample #: MW-3R Sample Matrix: Ground Water Sampled: 7/13/2023 11:18 [TOC_2]23G1784-02[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 7/18/23 19:48 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/18/23 19:48 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 19:48 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 19:48 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 19:48 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 19:48 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 19:48 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/18/23 19:48 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/18/23 19:48 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/18/23 19:48 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 19:48 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 19:48 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 19:48 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 19:48 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/18/23 19:48 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/18/23 19:48 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 19:48 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 19:48 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 19:48 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 19:48 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 19:48 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 19:48 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 19:48 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 19:48 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 19:48 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 19:48 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 19:48 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 19:48 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 19:48 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 19:48 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 19:48 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 19:48 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/18/23 19:48 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 19:48 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/18/23 19:48 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/18/23 19:48 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 19:48 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 19:48 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 10 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-02 Field Sample #: MW-3R Sample Matrix: Ground Water Sampled: 7/13/2023 11:18 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 7/18/23 19:48 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene ND 0.50 7/18/23 19:48 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 19:48 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/18/23 19:48 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/18/23 19:48 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 19:48 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 19:48 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 19:48 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 19:48 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 19:48 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/18/23 19:48 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/18/23 19:48 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 19:48 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 19:48 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/18/23 19:48 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/18/23 19:48 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 97.2 7/18/23 19:4870-130 Toluene-d8 99.6 7/18/23 19:4870-130 4-Bromofluorobenzene 93.2 7/18/23 19:4870-130 Page 11 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-03 Field Sample #: MW-4 Sample Matrix: Ground Water Sampled: 7/13/2023 10:55 [TOC_2]23G1784-03[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 7/18/23 20:16 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/18/23 20:16 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 20:16 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 20:16 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 20:16 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 20:16 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 20:16 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) 5.9 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene 5.0 0.50 7/18/23 20:16 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene 1.5 0.50 7/18/23 20:16 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/18/23 20:16 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 20:16 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 20:16 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 20:16 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 20:16 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/18/23 20:16 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/18/23 20:16 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 20:16 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 20:16 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 20:16 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 20:16 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 20:16 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 20:16 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 20:16 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 20:16 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 20:16 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 20:16 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 20:16 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 20:16 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 20:16 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 20:16 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 20:16 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 20:16 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) 34 0.50 7/18/23 20:16 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 20:16 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) 14 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) 11 0.50 7/18/23 20:16 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/18/23 20:16 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 20:16 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 20:16 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 12 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-03 Field Sample #: MW-4 Sample Matrix: Ground Water Sampled: 7/13/2023 10:55 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS 21 0.50 7/18/23 20:16 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene 15 0.50 7/18/23 20:16 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 20:16 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/18/23 20:16 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/18/23 20:16 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 20:16 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 20:16 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 20:16 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 20:16 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 20:16 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane 270 0.50 7/18/23 20:16 MFFg/L0.20 7/18/23SM21-23 6200B1E1,2,4-Trimethylbenzene 160 10 7/20/23 19:56 MFFg/L4.0 7/18/23SM21-23 6200B201,2,4-Trimethylbenzene 7.2 0.50 7/18/23 20:16 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 20:16 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 20:16 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride 5.3 1.0 7/18/23 20:16 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene 0.48 0.50 7/18/23 20:16 MFFg/L0.24 7/18/23SM21-23 6200B1Jo-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 101 7/20/23 19:5670-130 1,2-Dichloroethane-d4 96.6 7/18/23 20:1670-130 Toluene-d8 96.9 7/18/23 20:1670-130 Toluene-d8 97.0 7/20/23 19:5670-130 4-Bromofluorobenzene 99.0 7/18/23 20:1670-130 4-Bromofluorobenzene 88.3 7/20/23 19:5670-130 Page 13 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-04 Field Sample #: MW-7 Sample Matrix: Ground Water Sampled: 7/13/2023 10:18 [TOC_2]23G1784-04[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: H-08 Volatile Organic Compounds by GC/MS ND 50 7/20/23 16:49 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/20/23 16:49 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/20/23 16:49 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/20/23 16:49 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/20/23 16:49 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/20/23 16:49 MFFg/L1.3 7/18/23SM21-23 6200B1Bromomethane ND 5.0 7/20/23 16:49 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/20/23 16:49 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/20/23 16:49 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/20/23 16:49 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/20/23 16:49 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/20/23 16:49 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/20/23 16:49 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/20/23 16:49 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/20/23 16:49 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/20/23 16:49 MFFg/L0.50 7/18/23SM21-23 6200B1Chloromethane ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/20/23 16:49 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/20/23 16:49 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/20/23 16:49 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/20/23 16:49 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/20/23 16:49 MFFg/L0.16 7/18/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12) ND 0.50 7/20/23 16:49 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 0.50 7/20/23 16:49 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/20/23 16:49 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/20/23 16:49 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/20/23 16:49 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/20/23 16:49 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/20/23 16:49 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/20/23 16:49 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/20/23 16:49 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/20/23 16:49 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/20/23 16:49 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/20/23 16:49 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/20/23 16:49 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/20/23 16:49 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/20/23 16:49 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/20/23 16:49 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/20/23 16:49 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 14 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-04 Field Sample #: MW-7 Sample Matrix: Ground Water Sampled: 7/13/2023 10:18 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: H-08 Volatile Organic Compounds by GC/MS ND 2.0 7/20/23 16:49 MFFg/L0.38 7/18/23SM21-23 6200B1L-04Naphthalene ND 0.50 7/20/23 16:49 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/20/23 16:49 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/20/23 16:49 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/20/23 16:49 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/20/23 16:49 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 1.0 7/20/23 16:49 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/20/23 16:49 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/20/23 16:49 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B1Trichlorofluoromethane (Freon 11) ND 0.50 7/20/23 16:49 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/20/23 16:49 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/20/23 16:49 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/20/23 16:49 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/20/23 16:49 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/20/23 16:49 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/20/23 16:49 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 96.5 7/20/23 16:4970-130 Toluene-d8 102 7/20/23 16:4970-130 4-Bromofluorobenzene 81.0 7/20/23 16:4970-130 Page 15 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-05 Field Sample #: MW-9 Sample Matrix: Ground Water Sampled: 7/13/2023 10:37 [TOC_2]23G1784-05[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 7/18/23 21:11 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/18/23 21:11 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 21:11 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 21:11 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 21:11 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 21:11 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 21:11 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/18/23 21:11 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/18/23 21:11 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/18/23 21:11 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 21:11 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 21:11 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 21:11 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 21:11 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/18/23 21:11 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/18/23 21:11 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 21:11 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 21:11 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 21:11 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 21:11 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 21:11 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 21:11 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 21:11 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 21:11 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 21:11 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 21:11 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 21:11 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 21:11 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 21:11 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 21:11 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 21:11 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 21:11 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/18/23 21:11 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 21:11 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/18/23 21:11 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/18/23 21:11 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 21:11 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 21:11 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 16 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-05 Field Sample #: MW-9 Sample Matrix: Ground Water Sampled: 7/13/2023 10:37 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 7/18/23 21:11 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene ND 0.50 7/18/23 21:11 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 21:11 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/18/23 21:11 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/18/23 21:11 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 21:11 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 21:11 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 21:11 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 21:11 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 21:11 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/18/23 21:11 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/18/23 21:11 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 21:11 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 21:11 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/18/23 21:11 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/18/23 21:11 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 96.6 7/18/23 21:1170-130 Toluene-d8 99.8 7/18/23 21:1170-130 4-Bromofluorobenzene 95.7 7/18/23 21:1170-130 Page 17 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-06 Field Sample #: WSW-9 I Sample Matrix: Ground Water Sampled: 7/13/2023 13:53 [TOC_2]23G1784-06[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 7/18/23 21:39 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone 48 0.50 7/18/23 21:39 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 21:39 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 21:39 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 21:39 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 21:39 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 21:39 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) 0.33 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B1Jn-Butylbenzene 0.38 0.50 7/18/23 21:39 MFFg/L0.13 7/18/23SM21-23 6200B1Jsec-Butylbenzene 0.31 0.50 7/18/23 21:39 MFFg/L0.14 7/18/23SM21-23 6200B1Jtert-Butylbenzene ND 0.50 7/18/23 21:39 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 21:39 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 21:39 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 21:39 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 21:39 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/18/23 21:39 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/18/23 21:39 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 21:39 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 21:39 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 21:39 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 21:39 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 21:39 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 21:39 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 21:39 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 21:39 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 21:39 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 21:39 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 21:39 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 21:39 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 21:39 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 21:39 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 21:39 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 21:39 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/18/23 21:39 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 21:39 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) 4.0 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/18/23 21:39 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) 0.19 0.50 7/18/23 21:39 MFFg/L0.17 7/18/23SM21-23 6200B1JMethyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 21:39 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 21:39 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 18 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-06 Field Sample #: WSW-9 I Sample Matrix: Ground Water Sampled: 7/13/2023 13:53 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS 30 0.50 7/18/23 21:39 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene ND 0.50 7/18/23 21:39 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 21:39 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane 0.29 0.50 7/18/23 21:39 MFFg/L0.17 7/18/23SM21-23 6200B1JTetrachloroethylene ND 0.50 7/18/23 21:39 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 21:39 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 21:39 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 21:39 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 21:39 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 21:39 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane 0.84 0.50 7/18/23 21:39 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/18/23 21:39 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 21:39 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 21:39 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/18/23 21:39 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/18/23 21:39 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 96.3 7/18/23 21:3970-130 Toluene-d8 98.1 7/18/23 21:3970-130 4-Bromofluorobenzene 96.2 7/18/23 21:3970-130 Page 19 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-07 Field Sample #: WSW-9 E Sample Matrix: Ground Water Sampled: 7/13/2023 14:09 [TOC_2]23G1784-07[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: H-08 Volatile Organic Compounds by GC/MS ND 50 7/20/23 17:16 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/20/23 17:16 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/20/23 17:16 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/20/23 17:16 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/20/23 17:16 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/20/23 17:16 MFFg/L1.3 7/18/23SM21-23 6200B1Bromomethane ND 5.0 7/20/23 17:16 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/20/23 17:16 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/20/23 17:16 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/20/23 17:16 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/20/23 17:16 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/20/23 17:16 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/20/23 17:16 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/20/23 17:16 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/20/23 17:16 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/20/23 17:16 MFFg/L0.50 7/18/23SM21-23 6200B1Chloromethane ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/20/23 17:16 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/20/23 17:16 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/20/23 17:16 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/20/23 17:16 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/20/23 17:16 MFFg/L0.16 7/18/23SM21-23 6200B1Dichlorodifluoromethane (Freon 12) ND 0.50 7/20/23 17:16 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 0.50 7/20/23 17:16 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/20/23 17:16 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/20/23 17:16 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/20/23 17:16 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/20/23 17:16 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/20/23 17:16 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/20/23 17:16 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/20/23 17:16 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/20/23 17:16 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/20/23 17:16 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/20/23 17:16 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/20/23 17:16 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/20/23 17:16 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/20/23 17:16 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/20/23 17:16 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/20/23 17:16 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 20 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-07 Field Sample #: WSW-9 E Sample Matrix: Ground Water Sampled: 7/13/2023 14:09 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Sample Flags: H-08 Volatile Organic Compounds by GC/MS ND 2.0 7/20/23 17:16 MFFg/L0.38 7/18/23SM21-23 6200B1L-04Naphthalene ND 0.50 7/20/23 17:16 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/20/23 17:16 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/20/23 17:16 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/20/23 17:16 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/20/23 17:16 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 1.0 7/20/23 17:16 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/20/23 17:16 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/20/23 17:16 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B1Trichlorofluoromethane (Freon 11) ND 0.50 7/20/23 17:16 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/20/23 17:16 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/20/23 17:16 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/20/23 17:16 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/20/23 17:16 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/20/23 17:16 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/20/23 17:16 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 99.1 7/20/23 17:1670-130 Toluene-d8 95.3 7/20/23 17:1670-130 4-Bromofluorobenzene 83.9 7/20/23 17:1670-130 Page 21 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-08 Field Sample #: WSW-12 Sample Matrix: Ground Water Sampled: 7/13/2023 13:31 [TOC_2]23G1784-08[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 7/18/23 22:35 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/18/23 22:35 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 22:35 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 22:35 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 22:35 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 22:35 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 22:35 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/18/23 22:35 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/18/23 22:35 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/18/23 22:35 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 22:35 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 22:35 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 22:35 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 22:35 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/18/23 22:35 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/18/23 22:35 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 22:35 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 22:35 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 22:35 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 22:35 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 22:35 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 22:35 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 22:35 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 22:35 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 22:35 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 22:35 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 22:35 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 22:35 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 22:35 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 22:35 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 22:35 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 22:35 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/18/23 22:35 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 22:35 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/18/23 22:35 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/18/23 22:35 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 22:35 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 22:35 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 22 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-08 Field Sample #: WSW-12 Sample Matrix: Ground Water Sampled: 7/13/2023 13:31 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 7/18/23 22:35 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene ND 0.50 7/18/23 22:35 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 22:35 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/18/23 22:35 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/18/23 22:35 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 22:35 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 22:35 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 22:35 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 22:35 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 22:35 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/18/23 22:35 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/18/23 22:35 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 22:35 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 22:35 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/18/23 22:35 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/18/23 22:35 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 94.4 7/18/23 22:3570-130 Toluene-d8 98.6 7/18/23 22:3570-130 4-Bromofluorobenzene 93.6 7/18/23 22:3570-130 Page 23 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-09 Field Sample #: WSW-24 Sample Matrix: Ground Water Sampled: 7/13/2023 13:05 [TOC_2]23G1784-09[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 7/18/23 23:02 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/18/23 23:02 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 23:02 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 23:02 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 23:02 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 23:02 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 23:02 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/18/23 23:02 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/18/23 23:02 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/18/23 23:02 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 23:02 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 23:02 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 23:02 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 23:02 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/18/23 23:02 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/18/23 23:02 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 23:02 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 23:02 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 23:02 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 23:02 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 23:02 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 23:02 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 23:02 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 23:02 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 23:02 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 23:02 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 23:02 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 23:02 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 23:02 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 23:02 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 23:02 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 23:02 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/18/23 23:02 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 23:02 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/18/23 23:02 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/18/23 23:02 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 23:02 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 23:02 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 24 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-09 Field Sample #: WSW-24 Sample Matrix: Ground Water Sampled: 7/13/2023 13:05 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 7/18/23 23:02 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene ND 0.50 7/18/23 23:02 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 23:02 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/18/23 23:02 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/18/23 23:02 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 23:02 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 23:02 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 23:02 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 23:02 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 23:02 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/18/23 23:02 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/18/23 23:02 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 23:02 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 23:02 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/18/23 23:02 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/18/23 23:02 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 93.7 7/18/23 23:0270-130 Toluene-d8 99.4 7/18/23 23:0270-130 4-Bromofluorobenzene 93.2 7/18/23 23:0270-130 Page 25 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-10 Field Sample #: FB Sample Matrix: Field Blank Sampled: 7/13/2023 12:00 [TOC_2]23G1784-10[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS 3.0 50 7/18/23 23:30 MFFg/L2.0 7/18/23SM21-23 6200B1JAcetone ND 0.50 7/18/23 23:30 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 23:30 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 23:30 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 23:30 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 23:30 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 23:30 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/18/23 23:30 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/18/23 23:30 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/18/23 23:30 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 23:30 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 23:30 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 23:30 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 23:30 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/18/23 23:30 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/18/23 23:30 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 23:30 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 23:30 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 23:30 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 23:30 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 23:30 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 23:30 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 23:30 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 23:30 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 23:30 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 23:30 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 23:30 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 23:30 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 23:30 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 23:30 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 23:30 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 23:30 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/18/23 23:30 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 23:30 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/18/23 23:30 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/18/23 23:30 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 23:30 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 23:30 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 26 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-10 Field Sample #: FB Sample Matrix: Field Blank Sampled: 7/13/2023 12:00 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 7/18/23 23:30 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene ND 0.50 7/18/23 23:30 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 23:30 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/18/23 23:30 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/18/23 23:30 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 23:30 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 23:30 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 23:30 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 23:30 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 23:30 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/18/23 23:30 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/18/23 23:30 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 23:30 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 23:30 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/18/23 23:30 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/18/23 23:30 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 94.8 7/18/23 23:3070-130 Toluene-d8 99.6 7/18/23 23:3070-130 4-Bromofluorobenzene 94.4 7/18/23 23:3070-130 Page 27 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-11 Field Sample #: TB Sample Matrix: Trip Blank Water Sampled: 7/13/2023 00:00 [TOC_2]23G1784-11[TOC] AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 50 7/18/23 15:11 MFFg/L2.0 7/18/23SM21-23 6200B1Acetone ND 0.50 7/18/23 15:11 MFFg/L0.18 7/18/23SM21-23 6200B1Benzene ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B1Bromobenzene ND 0.50 7/18/23 15:11 MFFg/L0.28 7/18/23SM21-23 6200B1Bromochloromethane ND 0.50 7/18/23 15:11 MFFg/L0.16 7/18/23SM21-23 6200B1Bromodichloromethane ND 0.50 7/18/23 15:11 MFFg/L0.41 7/18/23SM21-23 6200B1Bromoform ND 2.0 7/18/23 15:11 MFFg/L1.3 7/18/23SM21-23 6200B1L-04Bromomethane ND 5.0 7/18/23 15:11 MFFg/L1.7 7/18/23SM21-23 6200B12-Butanone (MEK) ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B1n-Butylbenzene ND 0.50 7/18/23 15:11 MFFg/L0.13 7/18/23SM21-23 6200B1sec-Butylbenzene ND 0.50 7/18/23 15:11 MFFg/L0.14 7/18/23SM21-23 6200B1tert-Butylbenzene ND 0.50 7/18/23 15:11 MFFg/L0.16 7/18/23SM21-23 6200B1Carbon Tetrachloride ND 0.50 7/18/23 15:11 MFFg/L0.12 7/18/23SM21-23 6200B1Chlorobenzene ND 50 7/18/23 15:11 MFFg/L20 7/18/23SM21-23 6200B1Ethanol ND 0.50 7/18/23 15:11 MFFg/L0.20 7/18/23SM21-23 6200B1Chlorodibromomethane ND 0.50 7/18/23 15:11 MFFg/L0.34 7/18/23SM21-23 6200B1Chloroethane ND 0.50 7/18/23 15:11 MFFg/L0.14 7/18/23SM21-23 6200B1Chloroform ND 0.60 7/18/23 15:11 MFFg/L0.50 7/18/23SM21-23 6200B1L-04Chloromethane ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B12-Chlorotoluene ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B14-Chlorotoluene ND 0.50 7/18/23 15:11 MFFg/L0.16 7/18/23SM21-23 6200B11,2-Dibromoethane (EDB) ND 0.50 7/18/23 15:11 MFFg/L0.13 7/18/23SM21-23 6200B11,2-Dichlorobenzene ND 0.50 7/18/23 15:11 MFFg/L0.14 7/18/23SM21-23 6200B11,3-Dichlorobenzene ND 0.50 7/18/23 15:11 MFFg/L0.13 7/18/23SM21-23 6200B11,4-Dichlorobenzene ND 0.50 7/18/23 15:11 MFFg/L0.16 7/18/23SM21-23 6200B1L-04Dichlorodifluoromethane (Freon 12) ND 0.50 7/18/23 15:11 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethane ND 1.0 7/18/23 15:11 MFFg/L0.30 7/18/23SM21-23 6200B11,2-Dichloroethane ND 0.50 7/18/23 15:11 MFFg/L0.14 7/18/23SM21-23 6200B11,1-Dichloroethylene ND 0.50 7/18/23 15:11 MFFg/L0.14 7/18/23SM21-23 6200B1cis-1,2-Dichloroethylene ND 0.50 7/18/23 15:11 MFFg/L0.17 7/18/23SM21-23 6200B1trans-1,2-Dichloroethylene ND 0.50 7/18/23 15:11 MFFg/L0.19 7/18/23SM21-23 6200B11,2-Dichloropropane ND 0.50 7/18/23 15:11 MFFg/L0.12 7/18/23SM21-23 6200B11,3-Dichloropropane ND 0.50 7/18/23 15:11 MFFg/L0.35 7/18/23SM21-23 6200B12,2-Dichloropropane ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B11,1-Dichloropropene ND 0.50 7/18/23 15:11 MFFg/L0.16 7/18/23SM21-23 6200B1cis-1,3-Dichloropropene ND 0.50 7/18/23 15:11 MFFg/L0.14 7/18/23SM21-23 6200B1trans-1,3-Dichloropropene ND 0.50 7/18/23 15:11 MFFg/L0.20 7/18/23SM21-23 6200B1Diisopropyl Ether (DIPE) ND 0.50 7/18/23 15:11 MFFg/L0.22 7/18/23SM21-23 6200B1Ethylbenzene ND 5.0 7/18/23 15:11 MFFg/L1.2 7/18/23SM21-23 6200B12-Hexanone (MBK) ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B1Isopropylbenzene (Cumene) ND 0.50 7/18/23 15:11 MFFg/L0.13 7/18/23SM21-23 6200B1p-Isopropyltoluene (p-Cymene) ND 0.50 7/18/23 15:11 MFFg/L0.17 7/18/23SM21-23 6200B1Methyl tert-Butyl Ether (MTBE) ND 5.0 7/18/23 15:11 MFFg/L0.18 7/18/23SM21-23 6200B1Methylene Chloride ND 5.0 7/18/23 15:11 MFFg/L1.3 7/18/23SM21-23 6200B14-Methyl-2-pentanone (MIBK) Page 28 of 46 Table of Contents 39 Spruce Street * East Longmeadow, MA 01028 * FAX 413/525-6405 * TEL. 413/525-2332 Date Received: 7/14/2023 Work Order: 23G1784Sample Description:Project Location: Raleigh NC Sample ID: 23G1784-11 Field Sample #: TB Sample Matrix: Trip Blank Water Sampled: 7/13/2023 00:00 AnalystAnalyzedDilutionFlag/QualRLResultsAnalyte Date/Time DL Units Date PreparedMethod Volatile Organic Compounds by GC/MS ND 0.50 7/18/23 15:11 MFFg/L0.38 7/18/23SM21-23 6200B1Naphthalene ND 0.50 7/18/23 15:11 MFFg/L0.12 7/18/23SM21-23 6200B1n-Propylbenzene ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B1Styrene ND 0.50 7/18/23 15:11 MFFg/L0.14 7/18/23SM21-23 6200B11,1,2,2-Tetrachloroethane ND 0.50 7/18/23 15:11 MFFg/L0.17 7/18/23SM21-23 6200B1Tetrachloroethylene ND 0.50 7/18/23 15:11 MFFg/L0.22 7/18/23SM21-23 6200B1Toluene ND 1.0 7/18/23 15:11 MFFg/L0.34 7/18/23SM21-23 6200B11,2,3-Trichlorobenzene ND 0.50 7/18/23 15:11 MFFg/L0.30 7/18/23SM21-23 6200B11,2,4-Trichlorobenzene ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B11,1,1-Trichloroethane ND 0.50 7/18/23 15:11 MFFg/L0.19 7/18/23SM21-23 6200B11,1,2-Trichloroethane ND 0.50 7/18/23 15:11 MFFg/L0.17 7/18/23SM21-23 6200B1Trichloroethylene ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B1L-04Trichlorofluoromethane (Freon 11) ND 0.50 7/18/23 15:11 MFFg/L0.28 7/18/23SM21-23 6200B11,2,3-Trichloropropane ND 0.50 7/18/23 15:11 MFFg/L0.20 7/18/23SM21-23 6200B11,2,4-Trimethylbenzene ND 0.50 7/18/23 15:11 MFFg/L0.15 7/18/23SM21-23 6200B11,3,5-Trimethylbenzene ND 20 7/18/23 15:11 MFFg/L1.7 7/18/23SM21-23 6200B1Vinyl Acetate ND 0.50 7/18/23 15:11 MFFg/L0.24 7/18/23SM21-23 6200B1Vinyl Chloride ND 1.0 7/18/23 15:11 MFFg/L0.49 7/18/23SM21-23 6200B1m+p Xylene ND 0.50 7/18/23 15:11 MFFg/L0.24 7/18/23SM21-23 6200B1o-Xylene Surrogates % Recovery Recovery Limits Flag/Qual 1,2-Dichloroethane-d4 99.1 7/18/23 15:1170-130 Toluene-d8 99.6 7/18/23 15:1170-130 4-Bromofluorobenzene 94.9 7/18/23 15:1170-130 Page 29 of 46 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] B346265 07/18/235 5.0023G1784-01 [MW-1] B346265 07/18/235 5.0023G1784-02 [MW-3R] B346265 07/18/235 5.0023G1784-03 [MW-4] B346265 07/18/235 5.0023G1784-05 [MW-9] B346265 07/18/235 5.0023G1784-06 [WSW-9 I] B346265 07/18/235 5.0023G1784-08 [WSW-12] B346265 07/18/235 5.0023G1784-09 [WSW-24] B346265 07/18/235 5.0023G1784-10 [FB] B346265 07/18/235 5.0023G1784-11 [TB] Prep Method: SW-846 5030B-SM21-23 6200B Lab Number [Field ID]Batch DateInitial [mL]Final [mL] B346361 07/18/230.25 5.0023G1784-03RE1 [MW-4] B346361 07/18/235 5.0023G1784-04 [MW-7] B346361 07/18/235 5.0023G1784-07 [WSW-9 E] [TOC_1]Sample Preparation Information[TOC] Page 30 of 46 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 B346265 - SW-846 5030B [TOC_3]B346265[TOC] Blank (B346265-BLK1) Prepared & Analyzed: 07/18/23 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/L2.0 L-04ND 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/L0.60 L-04ND 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/L0.50 L-04ND 1,1-Dichloroethane g/L0.50ND 1,2-Dichloroethane g/L1.0ND 1,1-Dichloroethylene g/L0.50ND cis-1,2-Dichloroethylene g/L0.50ND trans-1,2-Dichloroethylene g/L0.50ND 1,2-Dichloropropane g/L0.50ND 1,3-Dichloropropane g/L0.50ND 2,2-Dichloropropane g/L0.50ND 1,1-Dichloropropene g/L0.50ND cis-1,3-Dichloropropene g/L0.50ND trans-1,3-Dichloropropene g/L0.50ND Diisopropyl Ether (DIPE)g/L0.50ND Ethylbenzene g/L0.50ND 2-Hexanone (MBK)g/L5.0ND Isopropylbenzene (Cumene)g/L0.50ND p-Isopropyltoluene (p-Cymene)g/L0.50ND Methyl tert-Butyl Ether (MTBE)g/L0.50ND Methylene Chloride g/L5.0ND 4-Methyl-2-pentanone (MIBK)g/L5.0ND 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 31 of 46 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 B346265 - SW-846 5030B Blank (B346265-BLK1) Prepared & Analyzed: 07/18/23 1,1,1-Trichloroethane g/L0.50ND 1,1,2-Trichloroethane g/L0.50ND Trichloroethylene g/L0.50ND Trichlorofluoromethane (Freon 11)g/L0.50 L-04ND 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 97.824.4 g/L 25.0 70-130Surrogate: Toluene-d8 99.024.8 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 94.023.5 LCS (B346265-BS1) Prepared & Analyzed: 07/18/23 Acetone g/L50 200 70-13071.0142 Benzene g/L0.50 20.0 70-13011222.3 Bromobenzene g/L0.50 20.0 70-13011222.4 Bromochloromethane g/L0.50 20.0 70-13011723.4 Bromodichloromethane g/L0.50 20.0 70-13010320.6 Bromoform g/L0.50 20.0 70-13010921.9 Bromomethane g/L2.0 20.0 L-0460-14044.3 *8.86 2-Butanone (MEK)g/L5.0 200 L-0770-130142*283 n-Butylbenzene g/L0.50 20.0 70-13011322.7 sec-Butylbenzene g/L0.50 20.0 70-13012023.9 tert-Butylbenzene g/L0.50 20.0 70-13011022.0 Carbon Tetrachloride g/L0.50 20.0 70-13010520.9 Chlorobenzene g/L0.50 20.0 70-13010621.2 Ethanol g/L50 200 70-13073.2146 Chlorodibromomethane g/L0.50 20.0 70-13010621.2 Chloroethane g/L0.50 20.0 60-14070.914.2 Chloroform g/L0.50 20.0 70-13011022.0 Chloromethane g/L0.60 20.0 L-0460-14039.3 *7.86 2-Chlorotoluene g/L0.50 20.0 70-13097.719.5 4-Chlorotoluene g/L0.50 20.0 70-13011021.9 1,2-Dibromoethane (EDB)g/L0.50 20.0 70-13010921.9 1,2-Dichlorobenzene g/L0.50 20.0 70-13011222.3 1,3-Dichlorobenzene g/L0.50 20.0 70-13011222.4 1,4-Dichlorobenzene g/L0.50 20.0 70-13010520.9 Dichlorodifluoromethane (Freon 12)g/L0.50 20.0 L-0460-14051.2 *10.2 1,1-Dichloroethane g/L0.50 20.0 70-13012324.6 1,2-Dichloroethane g/L1.0 20.0 70-13091.218.2 1,1-Dichloroethylene g/L0.50 20.0 70-13071.214.2 cis-1,2-Dichloroethylene g/L0.50 20.0 70-13011923.9 trans-1,2-Dichloroethylene g/L0.50 20.0 70-13011322.7 1,2-Dichloropropane g/L0.50 20.0 70-13011122.2 1,3-Dichloropropane g/L0.50 20.0 70-13011022.0 2,2-Dichloropropane g/L0.50 20.0 70-13010921.8 1,1-Dichloropropene g/L0.50 20.0 70-13010921.8 cis-1,3-Dichloropropene g/L0.50 20.0 70-13011122.3 trans-1,3-Dichloropropene g/L0.50 20.0 70-13011923.8 Page 32 of 46 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 B346265 - SW-846 5030B LCS (B346265-BS1) Prepared & Analyzed: 07/18/23 Diisopropyl Ether (DIPE)g/L0.50 20.0 70-13012024.0 Ethylbenzene g/L0.50 20.0 70-13011021.9 2-Hexanone (MBK)g/L5.0 200 70-130112223 Isopropylbenzene (Cumene)g/L0.50 20.0 70-13010621.2 p-Isopropyltoluene (p-Cymene)g/L0.50 20.0 70-13011723.3 Methyl tert-Butyl Ether (MTBE)g/L0.50 20.0 70-13010020.0 Methylene Chloride g/L5.0 20.0 70-13083.816.8 4-Methyl-2-pentanone (MIBK)g/L5.0 200 70-130109219 Naphthalene g/L0.50 20.0 70-13097.419.5 n-Propylbenzene g/L0.50 20.0 70-13011222.3 Styrene g/L0.50 20.0 70-13011222.4 1,1,2,2-Tetrachloroethane g/L0.50 20.0 70-13012324.5 Tetrachloroethylene g/L0.50 20.0 70-13010921.7 Toluene g/L0.50 20.0 70-13010921.7 1,2,3-Trichlorobenzene g/L1.0 20.0 70-13010320.6 1,2,4-Trichlorobenzene g/L0.50 20.0 70-13010821.5 1,1,1-Trichloroethane g/L0.50 20.0 70-13010921.8 1,1,2-Trichloroethane g/L0.50 20.0 70-13011522.9 Trichloroethylene g/L0.50 20.0 70-13010621.2 Trichlorofluoromethane (Freon 11)g/L0.50 20.0 L-0470-13064.8 *13.0 1,2,3-Trichloropropane g/L0.50 20.0 70-13011723.4 1,2,4-Trimethylbenzene g/L0.50 20.0 70-13011022.1 1,3,5-Trimethylbenzene g/L0.50 20.0 70-13010721.5 Vinyl Acetate g/L20 200 70-130118237 Vinyl Chloride g/L0.50 20.0 60-14065.013.0 m+p Xylene g/L1.0 40.0 70-13010742.9 o-Xylene g/L0.50 20.0 70-13011122.2 g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 97.224.3 g/L 25.0 70-130Surrogate: Toluene-d8 97.224.3 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 10025.0 LCS Dup (B346265-BSD1) Prepared & Analyzed: 07/18/23 Acetone g/L50 200 2570-13073.6 3.59147 Benzene g/L0.50 20.0 2570-130113 1.5122.6 Bromobenzene g/L0.50 20.0 2570-130113 0.80222.5 Bromochloromethane g/L0.50 20.0 2570-130122 4.0724.3 Bromodichloromethane g/L0.50 20.0 2570-130103 0.097120.6 Bromoform g/L0.50 20.0 2570-130112 2.8022.5 Bromomethane g/L2.0 20.0 25 L-0460-14054.0 19.7*10.8 2-Butanone (MEK)g/L5.0 200 2570-130118 17.9237 n-Butylbenzene g/L0.50 20.0 2570-130115 1.1823.0 sec-Butylbenzene g/L0.50 20.0 2570-130120 0.75024.1 tert-Butylbenzene g/L0.50 20.0 2570-130110 0.22722.0 Carbon Tetrachloride g/L0.50 20.0 2570-130103 1.8820.5 Chlorobenzene g/L0.50 20.0 2570-130106 0.42421.2 Ethanol g/L50 200 25 L-07A70-13041.5 55.3**83.0 Chlorodibromomethane g/L0.50 20.0 2570-130111 4.7922.2 Chloroethane g/L0.50 20.0 2560-14070.5 0.56614.1 Chloroform g/L0.50 20.0 2570-130111 1.1322.3 Chloromethane g/L0.60 20.0 25 L-0460-14044.0 11.3*8.80 2-Chlorotoluene g/L0.50 20.0 2570-130102 4.5020.4 4-Chlorotoluene g/L0.50 20.0 2570-130110 0.77222.1 Page 33 of 46 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 B346265 - SW-846 5030B LCS Dup (B346265-BSD1) Prepared & Analyzed: 07/18/23 1,2-Dibromoethane (EDB)g/L0.50 20.0 2570-130117 6.2823.3 1,2-Dichlorobenzene g/L0.50 20.0 2570-130115 2.7022.9 1,3-Dichlorobenzene g/L0.50 20.0 2570-130113 1.0722.6 1,4-Dichlorobenzene g/L0.50 20.0 2570-130107 1.9421.3 Dichlorodifluoromethane (Freon 12)g/L0.50 20.0 25 L-0460-14050.4 1.57*10.1 1,1-Dichloroethane g/L0.50 20.0 2570-130123 0.20324.6 1,2-Dichloroethane g/L1.0 20.0 2570-13094.4 3.3918.9 1,1-Dichloroethylene g/L0.50 20.0 2570-13071.7 0.63014.3 cis-1,2-Dichloroethylene g/L0.50 20.0 2570-130121 1.7024.3 trans-1,2-Dichloroethylene g/L0.50 20.0 2570-130115 1.0122.9 1,2-Dichloropropane g/L0.50 20.0 2570-130113 1.4322.5 1,3-Dichloropropane g/L0.50 20.0 2570-130111 1.1722.3 2,2-Dichloropropane g/L0.50 20.0 2570-130108 1.2921.5 1,1-Dichloropropene g/L0.50 20.0 2570-130111 1.2722.1 cis-1,3-Dichloropropene g/L0.50 20.0 2570-130112 0.44822.4 trans-1,3-Dichloropropene g/L0.50 20.0 2570-130122 2.7824.5 Diisopropyl Ether (DIPE)g/L0.50 20.0 2570-130124 3.2024.8 Ethylbenzene g/L0.50 20.0 2570-130108 1.3321.6 2-Hexanone (MBK)g/L5.0 200 2570-130115 2.86230 Isopropylbenzene (Cumene)g/L0.50 20.0 2570-130106 0.094321.2 p-Isopropyltoluene (p-Cymene)g/L0.50 20.0 2570-130115 1.2123.0 Methyl tert-Butyl Ether (MTBE)g/L0.50 20.0 2570-130105 4.9221.0 Methylene Chloride g/L5.0 20.0 2570-13076.0 9.7615.2 4-Methyl-2-pentanone (MIBK)g/L5.0 200 2570-130113 3.66227 Naphthalene g/L0.50 20.0 2570-130106 8.4621.2 n-Propylbenzene g/L0.50 20.0 2570-130112 0.13422.3 Styrene g/L0.50 20.0 2570-130111 1.2622.1 1,1,2,2-Tetrachloroethane g/L0.50 20.0 2570-130126 2.8925.2 Tetrachloroethylene g/L0.50 20.0 2570-130108 0.55421.6 Toluene g/L0.50 20.0 2570-130107 1.1621.5 1,2,3-Trichlorobenzene g/L1.0 20.0 2570-130110 6.3621.9 1,2,4-Trichlorobenzene g/L0.50 20.0 2570-130108 0.83321.7 1,1,1-Trichloroethane g/L0.50 20.0 2570-130108 0.96821.6 1,1,2-Trichloroethane g/L0.50 20.0 2570-130119 4.0223.9 Trichloroethylene g/L0.50 20.0 2570-130108 1.5921.6 Trichlorofluoromethane (Freon 11)g/L0.50 20.0 25 L-0470-13064.0 1.24*12.8 1,2,3-Trichloropropane g/L0.50 20.0 2570-130120 2.5324.0 1,2,4-Trimethylbenzene g/L0.50 20.0 2570-130110 0.13622.1 1,3,5-Trimethylbenzene g/L0.50 20.0 2570-130108 0.27921.5 Vinyl Acetate g/L20 200 2570-130122 3.10244 Vinyl Chloride g/L0.50 20.0 25 L-0760-14058.9 9.85*11.8 m+p Xylene g/L1.0 40.0 2570-130107 0.49042.7 o-Xylene g/L0.50 20.0 2570-130110 0.40722.1 g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 93.023.2 g/L 25.0 70-130Surrogate: Toluene-d8 97.524.4 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 98.524.6 Page 34 of 46 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 B346361 - SW-846 5030B [TOC_3]B346361[TOC] Blank (B346361-BLK1) Prepared: 07/19/23 Analyzed: 07/20/23 Acetone g/L50ND Benzene g/L0.50ND Bromobenzene g/L0.50ND Bromochloromethane g/L0.50ND Bromodichloromethane g/L0.50ND Bromoform g/L0.50ND Bromomethane g/L2.0ND 2-Butanone (MEK)g/L5.0ND n-Butylbenzene g/L0.50ND sec-Butylbenzene g/L0.50ND tert-Butylbenzene g/L0.50ND Carbon Tetrachloride g/L0.50ND Chlorobenzene g/L0.50ND Ethanol g/L50ND Chlorodibromomethane g/L0.50ND Chloroethane g/L0.50ND Chloroform g/L0.50ND Chloromethane g/L0.60ND 2-Chlorotoluene g/L0.50ND 4-Chlorotoluene g/L0.50ND 1,2-Dibromoethane (EDB)g/L0.50ND 1,2-Dichlorobenzene g/L0.50ND 1,3-Dichlorobenzene g/L0.50ND 1,4-Dichlorobenzene g/L0.50ND Dichlorodifluoromethane (Freon 12)g/L0.50ND 1,1-Dichloroethane g/L0.50ND 1,2-Dichloroethane g/L0.50ND 1,1-Dichloroethylene g/L0.50ND cis-1,2-Dichloroethylene g/L0.50ND trans-1,2-Dichloroethylene g/L0.50ND 1,2-Dichloropropane g/L0.50ND 1,3-Dichloropropane g/L0.50ND 2,2-Dichloropropane g/L0.50ND 1,1-Dichloropropene g/L0.50ND cis-1,3-Dichloropropene g/L0.50ND trans-1,3-Dichloropropene g/L0.50ND Diisopropyl Ether (DIPE)g/L0.50ND Ethylbenzene g/L0.50ND 2-Hexanone (MBK)g/L5.0ND Isopropylbenzene (Cumene)g/L0.50ND p-Isopropyltoluene (p-Cymene)g/L0.50ND Methyl tert-Butyl Ether (MTBE)g/L0.50ND Methylene Chloride g/L5.0ND 4-Methyl-2-pentanone (MIBK)g/L5.0ND Naphthalene g/L0.50 L-04ND n-Propylbenzene g/L0.50ND Styrene g/L0.50ND 1,1,2,2-Tetrachloroethane g/L0.50ND Tetrachloroethylene g/L0.50ND Toluene g/L0.50ND 1,2,3-Trichlorobenzene g/L1.0ND 1,2,4-Trichlorobenzene g/L0.50ND Page 35 of 46 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 B346361 - SW-846 5030B Blank (B346361-BLK1) Prepared: 07/19/23 Analyzed: 07/20/23 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 96.424.1 g/L 25.0 70-130Surrogate: Toluene-d8 10025.1 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 82.120.5 LCS (B346361-BS1) Prepared: 07/19/23 Analyzed: 07/20/23 Acetone g/L50 100 70-13088.088.0 Benzene g/L0.50 10.0 70-13010310.3 Bromobenzene g/L0.50 10.0 70-13099.49.94 Bromochloromethane g/L0.50 10.0 70-13011111.1 Bromodichloromethane g/L0.50 10.0 70-13010410.4 Bromoform g/L0.50 10.0 70-13083.78.37 Bromomethane g/L2.0 10.0 60-14011211.2 2-Butanone (MEK)g/L5.0 100 70-13096.996.9 n-Butylbenzene g/L0.50 10.0 70-13095.19.51 sec-Butylbenzene g/L0.50 10.0 70-13090.29.02 tert-Butylbenzene g/L0.50 10.0 70-13084.18.41 Carbon Tetrachloride g/L0.50 10.0 70-13079.17.91 Chlorobenzene g/L0.50 10.0 70-13010310.3 Ethanol g/L50 100 70-13072.072.0 Chlorodibromomethane g/L0.50 10.0 70-13095.99.59 Chloroethane g/L0.50 10.0 60-14086.98.69 Chloroform g/L0.50 10.0 70-13099.39.93 Chloromethane g/L0.60 10.0 60-14096.29.62 2-Chlorotoluene g/L0.50 10.0 70-13099.69.96 4-Chlorotoluene g/L0.50 10.0 70-13094.79.47 1,2-Dibromoethane (EDB)g/L0.50 10.0 70-13010310.3 1,2-Dichlorobenzene g/L0.50 10.0 70-13097.79.77 1,3-Dichlorobenzene g/L0.50 10.0 70-13010010.0 1,4-Dichlorobenzene g/L0.50 10.0 70-13010210.2 Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 60-14090.19.01 1,1-Dichloroethane g/L0.50 10.0 70-13097.29.72 1,2-Dichloroethane g/L0.50 10.0 70-13098.19.81 1,1-Dichloroethylene g/L0.50 10.0 70-13090.69.06 cis-1,2-Dichloroethylene g/L0.50 10.0 70-13094.99.49 trans-1,2-Dichloroethylene g/L0.50 10.0 70-13090.49.04 1,2-Dichloropropane g/L0.50 10.0 70-13010710.7 1,3-Dichloropropane g/L0.50 10.0 70-13010210.2 2,2-Dichloropropane g/L0.50 10.0 70-13095.09.50 1,1-Dichloropropene g/L0.50 10.0 70-13010110.1 cis-1,3-Dichloropropene g/L0.50 10.0 70-13010110.1 trans-1,3-Dichloropropene g/L0.50 10.0 70-13010110.1 Page 36 of 46 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 B346361 - SW-846 5030B LCS (B346361-BS1) Prepared: 07/19/23 Analyzed: 07/20/23 Diisopropyl Ether (DIPE)g/L0.50 10.0 70-13097.69.76 Ethylbenzene g/L0.50 10.0 70-13099.49.94 2-Hexanone (MBK)g/L5.0 100 70-13091.291.2 Isopropylbenzene (Cumene)g/L0.50 10.0 70-13090.99.09 p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 70-13092.49.24 Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 70-13088.28.82 Methylene Chloride g/L5.0 10.0 70-13091.79.17 4-Methyl-2-pentanone (MIBK)g/L5.0 100 70-13090.390.3 Naphthalene g/L0.50 10.0 L-0470-13064.6 *6.46 n-Propylbenzene g/L0.50 10.0 70-13094.49.44 Styrene g/L0.50 10.0 70-13091.29.12 1,1,2,2-Tetrachloroethane g/L0.50 10.0 70-13098.99.89 Tetrachloroethylene g/L0.50 10.0 70-13011011.0 Toluene g/L0.50 10.0 70-13010310.3 1,2,3-Trichlorobenzene g/L1.0 10.0 70-13080.18.01 1,2,4-Trichlorobenzene g/L0.50 10.0 70-13076.07.60 1,1,1-Trichloroethane g/L0.50 10.0 70-13097.19.71 1,1,2-Trichloroethane g/L0.50 10.0 70-13010410.4 Trichloroethylene g/L0.50 10.0 70-13010310.3 Trichlorofluoromethane (Freon 11)g/L0.50 10.0 70-13092.69.26 1,2,3-Trichloropropane g/L0.50 10.0 70-13012112.1 1,2,4-Trimethylbenzene g/L0.50 10.0 70-13088.58.85 1,3,5-Trimethylbenzene g/L0.50 10.0 70-13096.49.64 Vinyl Acetate g/L20 100 70-13094.094.0 Vinyl Chloride g/L0.50 10.0 60-14099.29.92 m+p Xylene g/L1.0 20.0 70-13096.719.3 o-Xylene g/L0.50 10.0 70-13090.89.08 g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 95.924.0 g/L 25.0 70-130Surrogate: Toluene-d8 10125.3 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 93.823.4 LCS Dup (B346361-BSD1) Prepared: 07/19/23 Analyzed: 07/20/23 Acetone g/L50 100 2570-13085.1 3.3685.1 Benzene g/L0.50 10.0 2570-13099.7 3.649.97 Bromobenzene g/L0.50 10.0 2570-130100 0.70210.0 Bromochloromethane g/L0.50 10.0 2570-130109 1.1810.9 Bromodichloromethane g/L0.50 10.0 2570-13099.5 4.429.95 Bromoform g/L0.50 10.0 2570-13082.7 1.208.27 Bromomethane g/L2.0 10.0 2560-140110 1.8911.0 2-Butanone (MEK)g/L5.0 100 2570-13094.2 2.8494.2 n-Butylbenzene g/L0.50 10.0 2570-13093.7 1.489.37 sec-Butylbenzene g/L0.50 10.0 2570-13089.7 0.5568.97 tert-Butylbenzene g/L0.50 10.0 2570-13084.4 0.3568.44 Carbon Tetrachloride g/L0.50 10.0 2570-13073.6 7.207.36 Chlorobenzene g/L0.50 10.0 2570-130102 0.87710.2 Ethanol g/L50 100 2570-13075.8 5.1775.8 Chlorodibromomethane g/L0.50 10.0 2570-13095.0 0.9439.50 Chloroethane g/L0.50 10.0 2560-14087.4 0.5748.74 Chloroform g/L0.50 10.0 2570-13096.5 2.869.65 Chloromethane g/L0.60 10.0 2560-14091.4 5.129.14 2-Chlorotoluene g/L0.50 10.0 2570-13095.9 3.799.59 4-Chlorotoluene g/L0.50 10.0 2570-13095.6 0.9469.56 Page 37 of 46 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 B346361 - SW-846 5030B LCS Dup (B346361-BSD1) Prepared: 07/19/23 Analyzed: 07/20/23 1,2-Dibromoethane (EDB)g/L0.50 10.0 2570-130100 3.1410.0 1,2-Dichlorobenzene g/L0.50 10.0 2570-130101 3.5210.1 1,3-Dichlorobenzene g/L0.50 10.0 2570-130100 0.0010.0 1,4-Dichlorobenzene g/L0.50 10.0 2570-13099.3 3.079.93 Dichlorodifluoromethane (Freon 12)g/L0.50 10.0 2560-14082.0 9.418.20 1,1-Dichloroethane g/L0.50 10.0 2570-13095.3 1.979.53 1,2-Dichloroethane g/L0.50 10.0 2570-13096.1 2.069.61 1,1-Dichloroethylene g/L0.50 10.0 2570-13089.0 1.788.90 cis-1,2-Dichloroethylene g/L0.50 10.0 2570-13093.8 1.179.38 trans-1,2-Dichloroethylene g/L0.50 10.0 2570-13089.3 1.228.93 1,2-Dichloropropane g/L0.50 10.0 2570-130106 1.0410.6 1,3-Dichloropropane g/L0.50 10.0 2570-130101 1.2810.1 2,2-Dichloropropane g/L0.50 10.0 2570-13089.7 5.748.97 1,1-Dichloropropene g/L0.50 10.0 2570-13094.2 6.679.42 cis-1,3-Dichloropropene g/L0.50 10.0 2570-13097.7 3.129.77 trans-1,3-Dichloropropene g/L0.50 10.0 2570-13097.6 3.329.76 Diisopropyl Ether (DIPE)g/L0.50 10.0 2570-13096.6 1.039.66 Ethylbenzene g/L0.50 10.0 2570-13095.2 4.329.52 2-Hexanone (MBK)g/L5.0 100 2570-13087.2 4.5787.2 Isopropylbenzene (Cumene)g/L0.50 10.0 2570-13089.1 2.008.91 p-Isopropyltoluene (p-Cymene)g/L0.50 10.0 2570-13089.8 2.858.98 Methyl tert-Butyl Ether (MTBE)g/L0.50 10.0 2570-13086.7 1.728.67 Methylene Chloride g/L5.0 10.0 2570-13091.2 0.5479.12 4-Methyl-2-pentanone (MIBK)g/L5.0 100 2570-13085.1 5.9285.1 Naphthalene g/L0.50 10.0 25 L-0470-13063.3 2.03*6.33 n-Propylbenzene g/L0.50 10.0 2570-13091.3 3.349.13 Styrene g/L0.50 10.0 2570-13090.8 0.4409.08 1,1,2,2-Tetrachloroethane g/L0.50 10.0 2570-130100 1.1110.0 Tetrachloroethylene g/L0.50 10.0 2570-130100 9.4010.0 Toluene g/L0.50 10.0 2570-13098.5 4.859.85 1,2,3-Trichlorobenzene g/L1.0 10.0 2570-13082.9 3.448.29 1,2,4-Trichlorobenzene g/L0.50 10.0 2570-13077.0 1.317.70 1,1,1-Trichloroethane g/L0.50 10.0 2570-13094.9 2.299.49 1,1,2-Trichloroethane g/L0.50 10.0 2570-130105 1.4310.5 Trichloroethylene g/L0.50 10.0 2570-130101 1.8610.1 Trichlorofluoromethane (Freon 11)g/L0.50 10.0 2570-13089.4 3.528.94 1,2,3-Trichloropropane g/L0.50 10.0 2570-130120 1.5812.0 1,2,4-Trimethylbenzene g/L0.50 10.0 2570-13088.9 0.4518.89 1,3,5-Trimethylbenzene g/L0.50 10.0 2570-13094.5 1.999.45 Vinyl Acetate g/L20 100 2570-13091.4 2.8391.4 Vinyl Chloride g/L0.50 10.0 2560-14094.7 4.649.47 m+p Xylene g/L1.0 20.0 2570-13094.0 2.7818.8 o-Xylene g/L0.50 10.0 2570-13089.9 0.9968.99 g/L 25.0 70-130Surrogate: 1,2-Dichloroethane-d4 93.223.3 g/L 25.0 70-130Surrogate: Toluene-d8 99.124.8 g/L 25.0 70-130Surrogate: 4-Bromofluorobenzene 93.023.2 Page 38 of 46 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 Reported result is estimated. Value reported over verified calibration range.E Reported results are estimated. Analysis performed on a previously used vial.H-08 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 Either laboratory fortified blank/laboratory control sample or duplicate recovery is outside of control limits, but the other is within limits. RPD outside of control limits. Reduced precision anticipated for any reported result for this compound. L-07A [TOC_1]Flag/Qualifier Summary[TOC] Page 39 of 46 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 40 of 46 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 41 of 46 Table of Contents Page 42 of 46 Table of Contents Page 43 of 46 Table of Contents Page 44 of 46 Table of Contents Page 45 of 46 Table of Contents Page 46 of 46 Table of Contents