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HomeMy WebLinkAboutMO-7545_36185_CA_MRP_20231013 Monitoring Report Dot’s Place Too 1484 Mecklenburg Highway Mount Mourne, Iredell County, North Carolina 28115 NCDEQ Incident No. 36185 ATC Project No: STL3618501 Submittal Date: October 13, 2023 Prepared By: ATC Associates of North Carolina, P.C. 7606 Whitehall Executive Center Drive, Suite 800 Charlotte, North Carolina 28273 p: (704) 529-3200 / f: (704) 529-3272 www.atcgroupservices.com 7606 Whitehall Executive Center Drive Suite 800 Charlotte, NC 28273 Tel: 704-529-3200 www.atcassociates.com Fax: 704-529-3272 N.C. Engineering License No. C-1598 October 13, 2023 Mr. Scott Ryals, P.E. North Carolina Department of Environmental Quality Division of Waste Management - Underground Storage Tank Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Re: Monitoring Report Dot’s Place Too 1484 Mecklenburg Highway Mount Mourne, Iredell County, North Carolina 28115 NCDEQ Incident # 36185 ATC Project # STL3618501 Task Authorization: TA-01 Dear Mr. Ryals: ATC Associates of North Carolina, P.C. is submitting the enclosed Monitoring Report for Dot’s Place Too. The report presents a summary of field activities and laboratory analytical results for work conducted in July and August 2023. Field activities included collection of groundwater samples from monitoring wells and supply wells for laboratory analysis. If you have any questions or require additional information, please contact our office at (704) 529-3200. Sincerely, ATC Associates of North Carolina, P.C. Noelle France, P.G. Al Quarles, P.G. Senior Project Manager Senior Project Manager Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 TABLE OF CONTENTS 1.0 SITE IDENTIFICATION ............................................................................... 1  2.0 EXECUTIVE SUMMARY ............................................................................. 2  3.0 SITE DESCRIPTION ................................................................................... 3  3.1 Site Characterization .................................................................... 3  3.2 Site Background ........................................................................... 3  3.3 Site and Regional Geology .......................................................... 5  3.4 Site and Regional Hydrogeology .................................................. 6  4.0 GROUNDWATER CHARACTERIZATION .................................................. 6  4.1 Water Supply Wells ...................................................................... 6  4.2 Groundwater Levels ..................................................................... 7  4.3 Groundwater Quality .................................................................... 7  5.0 CONCLUSIONS AND RECOMMENDATIONS ........................................... 9  TABLES Table 1 Water Supply Well Information Table 2 Monitoring Well Construction Table 3 Groundwater Elevation Data Table 4 Field Parameters Table 5 Recent Groundwater Analytical Data Table 6 Historical Water Supply Well Analytical Data Table 7 Historical Monitoring Well Analytical Data FIGURES Figure 1 Site Location Map Figure 2 Site Vicinity Map with Water Supply Well Locations Figure 3 Site Map Figure 4 Groundwater Elevation Map Figure 5 Benzene Isoconcentration Contour Map Figure 6 EDB Isoconcentration Contour Map Figure 7 Contaminants of Concern Map APPENDICES Appendix A Conceptual Site Model Appendix B Field Notes & Photographs Appendix C Laboratory Analytical Reports Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 1 1.0 SITE IDENTIFICATION 1. Site Identification Date of Report: October 13, 2023 Facility I.D.: Not Listed UST Incident Number (if known): 36185 Site Risk: High Site Rank: 0330D Land Use Category: Commercial Site Name: Dot’s Place Too Site Street Address: 1484 Mecklenburg Highway City/Town: Mount Mourne Zip Code: 28115 County: Iredell County Description of Geographical Data Point: Store___ Location Method: __Google Earth______________________________ Latitude (decimal degrees): 35.54393 Longitude (decimal degrees): -80.84722 2. Information about Contacts Associated with the Leaking UST System UST Owner: Bill Bolmer Address: 220 Chandeleur Drive, Mooresville, North Carolina 28117 Tel.: Unknown UST Operator: Bill Bolmer Address: 220 Chandeleur Drive, Mooresville, North Carolina 28117 Tel.: Unknown Property Owner: Grant William Bolmer Jr. (Bolmer Group) Address: 17750 Mooresville Road, Mooresville, North Carolina 28125 Tel.: Unknown Property Occupant: Vacant Address: 1484 Mecklenburg Highway, Mount Mourne, North Carolina, 28115 Tel: Unknown Consultant/Contractor: ATC Associates of North Carolina, P.C. Address: 7606 Whitehall Exec. Cntr Dr. Ste 800, Charlotte, NC Tel.: (704) 529-3200 Analytical Laboratory: Pace Analytical Laboratory State Certification No.: 12 Address: 9800 Kincey Ave, Suite 100, Huntersville NC 28078 Tel: 704-875-9092 3. Information about Release Date Discovered: October 2006 Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release (Dispenser/Piping/UST): Leaking UST System Sizes and contents of UST system(s) from which the release occurred: Three 550-gallon gasoline USTs and one 100-gallon hydraulic oil UST. Criteria Used to Classify Risk: Water supply wells within 1,000 feet of the source area. 4. Information about the Monitoring Report Date(s) of Groundwater Monitoring & Supply Well Sampling Events(s): 7/25/23 and 8/4/23 5. Certification I, Al Quarles, a Licensed Geologist for ATC Associates of North Carolina, P.C., do certify that the information contained in this report is correct and accurate to the best of my knowledge. ATC Associates of North Carolina, P.C. is licensed to practice engineering and geology in North Carolina. The certification number of the company or corporation is C-1598 for engineering and C-294 for geology. Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 2 2.0 EXECUTIVE SUMMARY ATC Associates of North Carolina, P.C. (ATC) has completed a Groundwater Monitoring Report (GMR) documenting site assessment activity conducted in July and August 2023, at Dot’s Place Too, located at 1484 Mecklenburg Highway in Mount Mourne, Iredell County, North Carolina. The GMR was performed based on the June 22, 2023, Task Authorization (TA-01) by the Trust Fund Branch of the Underground Storage Tank (UST) Section, Division of Waste Management, North Carolina Department of Environmental Quality (NCDEQ) and an August 4, 2023 Change Order for the resampling of water supply well WSW-8. The work was performed as part of the State Lead Contract #N70522-B between NCDEQ and ATC. Former petroleum USTs at the site released petroleum product to the subsurface prior to their removal in 2006. This GMR documents impacts to the site related to the former UST system. The approved scope of services included the sampling of five monitoring wells (MW-1R, MW-4, MW-5, MW-6, and DW-1), and two active potable water supply wells (WSW-8, and WSW-9), with analysis of all samples for volatile organic compounds (VOCs) by Standard Method (SM) 6200B. All samples were collected on July 25, 2023, and water supply well WSW-8 was resampled on August 4, 2023, that also included the analysis of 1,2-dibromoethane or ethylene dibromide (EDB) using EPA Method 504.1. Analytical results were compared to the 15A NCAC 02L .0202 Groundwater Quality Standards (2L Standards) and Gross Contamination Levels (GCLs). Due to an oversight, the sampling of the on-site water supply well or water supply well WSW-4 was not included in the proposed scope of services. Analytical results from the July 25, 2023 sampling indicated that the reported results for monitoring well MW-5 (with no VOCs) and water supply well WSW-8 (with multiple VOCs) had been swapped by the laboratory. Confirmation sampling of WSW-8 on August 4, 2023 indicated no VOCs with the exception of chloroform. For the purposes of this report, the analytical data discussed used, assumes that the results from MW-5 and WSW-8 had been switched. A summary of the site conditions based on the recent and historical assessment are presented below and in the Conceptual Site Model (CSM) in Appendix A.  Six active water supply wells are located within 500 feet of the source area, including two wells within 250 feet (WSW-SITE and WSW-4). While municipal water is available those properties, none the properties are not within the Town of Mooresville limits and cannot access the water line at this time. Additional active water supply wells are likely present between 500 and 1,000 feet of the source area;  Water supply well WSW-8 contained chloroform (August 4, 2023 sample) at an estimated concentration of 0.22 micrograms per liter (µg/L), less than the 2L Standard;  The water supply well WSW-9 sample contained trihalomethanes typically found in treated municipal water and no other VOCs. The sample is presumed to be a municipal water sample;  Light non-aqueous phase liquid (LNAPL) was not detected in the monitoring wells;  EDB was detected in wells MW-1R at a concentration of 209 µg/L, exceeding the GCL of 50 µg/L;  Each of the shallow monitoring wells sampled contained several VOCs at concentrations exceeding the 2L Standards;  The depth to groundwater ranged from 28.84 feet below top of casing (ft-toc) in well MW-6 to 31.22 ft-toc in well MW-5 on July 25, 2023. Groundwater levels are approximately 5.5 to 6.8 feet lower than those observed in March 2021; and, Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 3  Historically, groundwater flow has been indicated to be the southeast. The recent data suggest a groundwater mound at well MW-1R with flow to the west toward MW-6 from MW- 1 and to the southeast toward MW-5 from MW-1. The contaminant plume appears to be generally stable with overall decreasing concentrations with time except for well MW-6. VOC concentrations in well MW-6 increased since first sampled in March 2021 possibly due to the use of the on-site water supply well. VOC concentrations were below laboratory detection limits in the deep well DMW-1. Contaminant concentrations have fluctuated with time but are generally decreasing. The reduction of VOCs following prior aggressive fluid vapor recovery (AFVR) events does not appear to be sustained, and the use of oxygen releasing socks has not been effective at reducing the contaminant concentrations in groundwater monitoring wells. Based on the current and historical findings, ATC recommends the following:  Sample the on-site water supply well WSW-SITE and WSW-4 located within 500 feet of the source area.  Consider conducting a qualitative high resolution site characterization (qHRSC) for possible chemical injection to reduce the petroleum VOCs including EDB that exceeds the GCL.  Consider conducting a combined mobile multi-phase extraction / air sparge (MMPE/AS) event using MW-1, MW-4, and MW-6 as extraction wells and DMW-1 as the sparge well. 3.0 SITE DESCRIPTION 3.1 Site Characterization The NCDEQ retained ATC to provide environmental consulting services for Dot’s Place Too, which is located at 1484 Mecklenburg Highway in Mount Mourne, Iredell County, North Carolina. Figure 1 depicts the site location on a topographic map. The site is currently used as a plant nursery with retail sales of lawn care and landscaping products. Twenty-four water supply wells were identified within 1,000 feet of the site in 2008. Data from the 2015 receptor update indicated four active water supply wells within 500 feet of the site, and current site activities identified six active water supply wells within 500 feet of the source area, including an on-site wells (WSW-SITE) and WSW-4 within 250 feet of the source area. Municipal water lines from the Town of Mooresville are located along the properties with the water supply wells, however, the properties are not within the Town of Mooresville limits. Thus, access to the municipal water line is not available at this time and would require that the properties be annexed into the Town of Mooresville. Figure 2 indicates the location of water supply wells in the site vicinity, and Table 1 provides the water supply well information. Figure 3 presents the locations of the monitoring wells and prior locations of the former USTs and building. 3.2 Site Background The former Dot’s Place Too served as a gasoline station in the 1970’s and 1980s. Four underground storage tanks (USTs) were formerly utilized at the site. Three 550-gallon gasoline USTs and one 100-gallon hydraulic oil UST were removed in October 2006. During UST closure activities, concentrations of diesel range organic and gasoline range organic total petroleum hydrocarbons were detected exceeding the North Carolina action levels for soil. Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 4 Between February 13 and April 1, 2008, Geological Resources, Inc. completed Phase I and II Limited Site Assessments (LSA) at the site. During the investigations, four groundwater monitoring wells were installed (MW-1, MW-2, MW-3, and MW-4). Groundwater sampling from the Phase II LSA indicated petroleum impact to the monitoring wells, including a concentration of EDB exceeding the GCL in monitoring well MW-1. Subsequent groundwater monitoring events have been conducted at the site from 2009 through 2013, which indicated remaining petroleum impact above the 2L Standards. In November 2009, monitoring well MW-1R was installed to replace monitoring well MW-1 which was destroyed during the installation of a water main near the western edge of the site. In February 2010, monitoring well MW-5 was installed to the west of the site in a vacant lot. On January 4, 2013, Force Environmental Service Company, LLC performed an 8-hour aggressive fluid-vapor recovery (AFVR) event utilizing well MW-1R as the extraction point. According to an Initial Abatement Action Report (IAAR) performed by Schnabel Engineering South, P.C, the AFVR event recovered approximately 825 gallons of petroleum impacted groundwater. Calculations to determine the volume of VOCs recovered as vapor were not provided. Post-AFVR groundwater monitoring indicated that the AFVR had aided in reducing the dissolved petroleum constituent concentrations below GCLs; however, petroleum impact remained above 2L Standards. In April 2015, ATC and A&D Environmental Services conducted an 8-hour AFVR event using well MW-4 as the extraction point. The AFVR generated approximately 1,019 gallons of petroleum impacted groundwater and recovered an estimated 5.75 gallons of petroleum as vapor. In May 2015, ATC completed a comprehensive groundwater sampling event and updated the sensitive receptor and water supply well survey previously completed in 2008. VOC concentrations were reduced slightly. Table 1 lists water supply wells within 500 feet of the source area. Adventus remedial O-sox were installed in monitoring wells MW-1R, MW-4, and MW-5 in August 2015 and a subsequent monitoring event was performed in February 2016. The subsequent sampling event was performed to monitor groundwater conditions following an updated O-sox installation in June 2016. In August 2017, groundwater monitoring wells MW-1R, MW-4, and MW-5, and water supply wells WSW-3 and WSW-9/WSW-26 were sampled. Several petroleum constituents were detected in wells MW-1R, MW-4, and MW-5 above the 2L Standards. Provectus Oxygen Releasing Substrate (ORS) were installed in monitoring wells MW-1R, MW- 4, and MW-5 in September 2018. Groundwater monitoring wells MW-1R, MW-3, MW-4, and MW-5 were sampled in September 2019. The ORS was removed from monitoring wells MW-1R, MW-4, and MW-5 prior to sampling. EDB was detected in wells MW-1R and MW-4 at concentrations exceeding the GCLs. Several petroleum constituents were detected in wells MW-1R, MW-3, and MW-5 at concentrations exceeding the 2L Standards. In April 2020, groundwater samples were collected from water supply wells WSW-2, WSW-3, WSW-5 and WSW-9/WSW-26. No petroleum constituents were detected in the April 2020 water supply well samples with the exception of chloroform (0.47 µg/L) in WSW-9/WSW-26 which was Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 5 below the 2L Standard. ATC recommended the installation of a shallow monitoring well at the former kerosene/gasoline UST basin, and a deep monitoring well in the former gasoline dispenser/UST basin to further evaluate the horizontal and vertical extent of groundwater impact, and four additional soil borings around the former gasoline dispenser/UST basin to evaluate the extent and magnitude of soil contamination. On March 11, 2021, ATC oversaw the advancement of four soil borings for the collection of soil samples. On March 11 and 12, 2021, ATC supervised the installation of monitoring wells MW-6 and DW-1. On March 11, 2021, soil samples were collected from four soil borings (SB-A, SB-B, SB-C, and SB-D) and two monitoring wells (MW-6 and DW-1) at select intervals. One soil sample from each boring was selected for laboratory analysis based on the highest potential for soil impacts based on visual and olfactory observations, as well as PID screening results. The VOCs detected in soils included, p-Isopropyltoluene, methyl isobutyl ketone (MIBK), and C5-C8 Aliphatics in soil samples SB-A, MW-6, and DW-1; naphthalene in soil samples MW-6 and DW- 1; and 1,2,4-trimethylbenzene in soil sample MW-6 were detected at concentrations above the Soil-to-Water MSCCs, but below the Residential cleanup levels. SVOCs and EPH were not detected in the sample collected from MW-6, and the sample collected from SB-D did not contain detectable concentrations of petroleum constituents. On March 18, 2021, ATC collected groundwater samples from five monitoring wells (MW-1R, MW- 4, MW-5, MW-6, and DW-1), and two active potable water supply wells (WSW-8, and WSW- 9/WSW-26) located within 500 feet of the source area. Groundwater monitoring wells MW-2 and MW-3 were not located for sampling, and ATC was unable to obtain permission to sample water supply wells WSW-2 and WSW-3. Six active water supply wells are located within 500 feet of the source area. Municipal water is available to properties located along Mecklenburg Highway; however, none of the properties with identified water supply wells have an active municipal water account. Additional active water supply wells are likely present between 500 and 1,000 feet of the source area. An active water supply well, presumed to be used for drinking water and irrigation, was observed on site during the March 2021 assessment activities, and appears to have been installed at the site at some time since 2019. The site does not have an active municipal water account. Light non- aqueous phase liquid (LNAPL) was not detected in the monitoring wells,1,2-Dibromoethane (ethylene dibromide or EDB) was detected in wells MW-1R and MW-4 at concentrations exceeding the GCL. Each of the sampled monitoring wells contained several VOCs at concentrations exceeding the 2L Standards. The water supply wells contained toluene (WSW-8 at 0.6 micrograms per liter or µg/L) and chloroform (WSW-9 at 0.43J µg/L), at concentrations less than the 2L Standards. 3.3 Site and Regional Geology According to the Geologic Map of North Carolina, produced by the State of North Carolina in 1985, the site lies in the Charlotte Belt of the Piedmont Physiographic Province of North Carolina. The rock type in this area has been identified as granite, a crystalline igneous rock. The shallow subsurface in most areas of the Piedmont contains residual soil overburden, including structure-free residuum, saprolite, and partially weathered rock (PWR) that derive from in-place weathering of the crystalline bedrock. Occasional areas containing recent deposits of alluvium in the uppermost subsurface are found near streams and rivers. Saprolite and PWR typically contain some relict structures from the original rock material. Depth to rock ranges from ground surface at occasional outcrops to depths of greater than 100 feet in areas of easily weathered rock. Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 6 According to geological data collected during the installation of the monitoring wells during the Phase II LSA performed by Geological Resources, Inc., the site soils consist of undifferentiated silts to approximately 22 ft-bgs, transitioning to saprolite and granitic rock at a depth of 40 ft-bgs. Based on ATC’s observations during the installation of monitoring wells MW-6 and DW-1, PWR extended to a depth of approximately 55 ft-bgs, and bedrock was encountered from 55 ft-bgs to 65 ft-bgs. On March 11 and 12, 2021, ATC supervised the installation of monitoring wells MW-6 and DW- 1. The boring for monitoring well MW-6 was extended to a depth of approximately 35 ft-bgs. The boring for the outer casing of DW-1 was extended to a depth of approximately 55 ft-bgs. The boring for monitoring well DW-1 was extended to approximately 65 ft-bgs. Evidence of PWR was observed from approximately 25 ft-bgs to 55 ft-bgs, and the top of bedrock was encountered at a depth of approximately 55 ft-bgs. 3.4 Site and Regional Hydrogeology The shallow aquifer occurrence varies in depth from ground surface at springs, creeks, and rivers to as deep as 50 feet or more beneath upland surfaces in some parts of the Piedmont. Water in the alluvium or unconsolidated residual material, including saprolite and PWR, usually behaves as an unconfined aquifer, or water table, and will yield water with head elevation equivalent to the first elevation where water was encountered. Permeability varies with lithology and is typically relatively low in residual soils, with higher permeability in saprolite or PWR due to relict rock texture and variable susceptibility to weathering exhibited by different minerals in the rock. Groundwater flow in residual soils or alluvium generally follows local topographic conditions toward local drainage features. Based on the data from the monitoring well network, shallow groundwater flows generally to the east. The depth to groundwater ranged from 28.84 feet below top of casing (ft-toc) in well MW-6 to 31.22 ft-toc in well MW-5, during the groundwater monitoring event. Historical groundwater levels have ranged from approximately 22 ft-bgs to 35 ft- bgs. Modern water supply wells in the Piedmont, likely including those in the site vicinity, are typically installed with a surface casing through the unconsolidated material, and an open borehole into the bedrock where water-bearing fractures are encountered. 4.0 GROUNDWATER CHARACTERIZATION 4.1 Water Supply Wells On July 25, 2023, ATC collected samples from water supply wells WSW-8 and WSW-9. On August 4, 2023, ATC collected a confirmatory sample from water supply well WSW-8. No sample was proposed to be collected from water supply wells WSW-SITE or WSW-4 located within 250 of the source area. Water supply well information is included in Table 1 and locations are depicted on Figure 2. During sampling activities, the water supply wells were purged for 15 minutes prior to sampling. The water samples were collected in laboratory-supplied, preserved containers; entered into chain of custody control; placed on ice; and shipped to Pace Analytical Services, LLC in Huntersville, North Carolina. The water supply well samples were analyzed by Standard Method 6200B for VOCs including petroleum constituents. Field notes from the groundwater monitoring event are included in Appendix B. The analytical report is included in Appendix C. Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 7 ATC received the analytical results for these wells on August 2, 2023. Analytical results from MW-5 did not indicate the presence of VOCs, where they had been present during the previous sampling event. The analytical results from WSW-8 indicated the presence of various VOCs where none had been present previously. Based on these results, ATC concluded that the samples had been switched at some point. ATC reviewed field notes and laboratory report, and asked field and laboratory staff about possible mislabeling of sample identifications between sample MW-5 and WSW-8. The sample containers were labeled in the field at the time of sample collection of each sample, and therefore, mislabeling by the field staff does not appear to be the cause. The laboratory indicated that they checked their system and found no indication of mislabeling, although ATC suspects that to be the case. To confirm the results for WSW-8, ATC resampled WSW-8 on August 4, 2023, and those results indicated no VOCs except for an estimated concentration of chloroform. For the purposes of this report, the analytical results of the July 25, 2023 sampling of WSW-8 and MW-5 are reported as if the sample identifications were mislabeled. 4.2 Groundwater Levels On July 25, 2023, a groundwater gauging event was conducted for monitoring wells MW-1R, MW-4, MW-5, MW-6, and DW-1. Monitoring wells MW-2 and MW-3 were not located and are likely covered by landscaping supplies. Depth to groundwater and total well depths were measured from TOC using an electronic water level indicator. Figure 3 depicts a site map with pertinent site features and monitoring well locations. Monitoring well construction details are summarized in Table 2. Groundwater flow has previously been reported to be the southeast. The depth to groundwater ranged from 28.84 feet below top of casing (ft-toc) in well MW-6 to 31.22 ft-toc in well MW-5. Historical groundwater levels have ranged from approximately 22 ft-bgs to 35 ft-bgs. Recent and historical depth to groundwater and groundwater elevation data are summarized in Table 3. A groundwater elevation map is presented in Figure 4. Field notes from the groundwater monitoring event are included in Appendix B. 4.3 Groundwater Quality On July 25, 2023, a groundwater sampling event was conducted for monitoring wells MW-1R, MW-4, MW-5, MW-6, DW-1, WSW-8, and WSW-9. LNAPL was not detected in the monitoring wells. During sampling activities, the monitoring wells were purged of three standing well volumes, or purged dry and allowed to recharge, to ensure a representative groundwater sample was collected. After purging, field parameters were measured and recorded at the time of sampling and are presented in Table 4 and in the field notes included in Appendix B. The water samples were collected in laboratory-supplied, preserved containers; placed on ice; entered into chain of custody control; and transported to Pace Analytical Services, LLC in Huntersville, North Carolina. The monitoring well samples, a field blank, and a trip blank were analyzed by Standard Method 6200B for VOCs including petroleum constituents. Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 8 Groundwater analytical results for the groundwater monitoring wells, assuming the original WSW-8 data is actually that of MW-5, were compared to the 2L Standards and GCLs. The findings from the groundwater monitoring event indicate the following:  Water supply well WSW-8 contained chloroform (August 4, 2023 sample) at an estimated concentration of 0.22 µg/L, less than the 2L Standard;  The water supply well WSW-9 sample contained trihalomethanes typically found in chlorinated water. The property with this well does not have an active municipal water account;  LNAPL was not detected in the monitoring wells;  Monitoring wells MW-1R contained EDB at 209 µg/L, exceeding the GCL of 50 µg/L;  Each of the shallow monitoring wells contained several VOCs at concentrations exceeding the 2L Standards; and  VOCs were not detected in the deep monitoring well DMW-1, except for chloroform at an estimated concentration less than the 2L Standard. Recent groundwater analytical results for the monitoring and water supply wells are summarized in Table 5. Historical water supply well and monitoring well analytical data are included in Table 6 and Table 7, respectively. Figure 5, Figure 6, and Figure 7 depict the concentrations for benzene, EDB, and VOCs exceeding the 2L Standards in groundwater. Field notes and photographs from the groundwater monitoring event are included in Appendix B. The laboratory analytical report is included in Appendix C. The contaminant plume appears to be generally stable with overall decreasing concentrations with time except for well MW-6. VOC concentrations in well MW-6 increased since first sampled in March 2021 possibly due to the use of the on-site water supply well. VOC concentrations were below laboratory detection limits in the deep well DMW-1. Contaminant concentrations have fluctuated with time but are generally decreasing. As part of ATC’s quality assurance and quality control (QA and QC) measures, a data review of the laboratory reports was conducted. During the review, it was found that the samples were received from the laboratory in acceptable condition and properly preserved. The samples were analyzed within correct holding times and reported within the lab report, and the chain of custody was properly completed by all parties. The field blank sample, FB-1, and a laboratory provided Trip Blank were analyzed for VOCs, neither of which contained detectable concentrations of petroleum constituents. The laboratory QC report shows that two internal method blanks were analyzed for each method that was used for the original samples. The laboratory fortified blank (LFB) and laboratory control sample (LCS) data results were also provided for each analytical method. Some samples had to be diluted during analysis, resulting in method detection limits that exceeded the 2L Standard; however, the wells with higher dilutions had other compounds with confirmed detections above 2L Standards. Refer to the laboratory reports in Appendix C for details regarding QA results for the laboratory samples and any noted exceptions. Overall, ATC concludes that the laboratory results are usable. Lab qualifications are defined on the corresponding tables. Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 9 5.0 CONCLUSIONS AND RECOMMENDATIONS On behalf of the Trust Fund Branch of the UST Section, ATC has completed a Groundwater Monitoring Report documenting assessment activities conducted in July and August 2023, at Dot’s Place Too, located at 1484 Mecklenburg Highway in Mount Mourne, Iredell County, North Carolina. The approved scope of services included the sampling of five monitoring wells (MW-1R, MW-4, MW-5, MW-6, and DW-1), and two active potable water supply wells (WSW-8, and WSW-9), with analysis of all samples for VOCs by SM 6200B. All samples were collected on July 25, 2023, and water supply well WSW-8 was resampled on August 4, 2023, that also included the analysis of EDB using EPA Method 504.1. Analytical results were compared to the 2L Standards and GCLs. Analytical results from the July 25, 2023 sampling indicated that the reported results for monitoring well MW-5 (with no VOCs) and water supply well WSW-8 (with multiple VOCs) had been mislabeled by the laboratory. Confirmation sampling of WSW-8 on August 4, 2023 indicated no VOCs with the exception of chloroform. For the purposes of this report, the analytical data discussed used, assumes that the results from MW-5 and WSW-8 had been switched. A summary of the site conditions based on the recent and historical assessment are presented below and in the CSM in Appendix A.  Six active water supply wells are located within 500 feet of the source area, including two wells within 250 feet (WSW-SITE and WSW-4). While municipal water is available those properties, none the properties are not within the Town of Mooresville limits and cannot access the water line at this time. Additional active water supply wells are likely present between 500 and 1,000 feet of the source area;  Water supply well WSW-8 contained chloroform (August 4, 2023 sample) at an estimated concentration of 0.22 µg/L, less than the 2L Standard;  The water supply well WSW-9 sample contained trihalomethanes typically found in chlorinated water. The property with this well does not have an active municipal water account;  LNAPL was not detected in the monitoring wells;  EDB was detected in wells MW-1R at a concentration of 209 µg/L, exceeding the GCL of 50 µg/L;  Each of the shallow monitoring wells sampled contained several VOCs at concentrations exceeding the 2L Standards;  The depth to groundwater ranged from 28.84 feet below top of casing (ft-toc) in well MW-6 to 31.22 ft-toc in well MW-5 on July 25, 2023. Groundwater levels are approximately 5.5 to 6.8 feet lower than those observed in March 2021; and,  Historically, groundwater flow has been indicated to be the southeast. The recent data suggest a groundwater mound at well MW-1R with flow to the west toward MW-6 from MW- 1 and to the southeast toward MW-5 from MW-1. The contaminant plume appears to be generally stable with overall decreasing concentrations with time except for well MW-6. VOC concentrations in well MW-6 increased since first sampled in March 2021 possibly due to the use of the on-site water supply well. VOC concentrations were below laboratory detection limits in the deep well DMW-1. Contaminant concentrations have fluctuated with time but are generally decreasing. Monitoring Report October 13, 2023 Dot’s Place Too, Incident # 36185, Mooresville, NC ATC Project No. STL3618501 10 The reduction of VOCs following prior AFVR events does not appear to be sustained, and the use of oxygen releasing socks has not been effective at reducing the contaminant concentrations in groundwater monitoring wells. Based on the current and historical findings, ATC recommends the following: Sample the on-site water supply well WELL-SITE and WSW-4 located within 250 feet of the source area; Consider conducting a qHRSC for possible chemical injection to reduce the petroleum VOCs including EDB that exceeds the GCL. Consider conducting a combined MMPE/AS event using MW-1, MW-4, and MW-6 as extraction wells and DMW-1 as the sparge well. TABLES TABLE 1WATER-SUPPLY WELL INFORMATIONDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185Well Well / Property OwnerProperty AddressOwner AddressWell Use (P/I/A/N)Active Municipal Water Account (Y/N)Available Water Connection (Y/N)WSW-SITE Bolmer Group LLC1484 Mecklenburg HighwayMooresville, NC 2811717750 Mooresville RoadMooresville, NC 28115P / INYWSW-2RKWP LLCMoser Brothers Enterprises Inc.1488 Mecklenburg HighwayMooresville, NC 28117444 Williamson Rd, Suite AMooresville, NC 28117130 SWPNYWSW-3 HWG Mt. Mourne LLC1477 Mecklenburg HighwayMooresville, NC 28117130 Valleymist LaneMooresville, NC 28117295 NE UnknownVacant with no structures on-siteYWSW-4 Bolmer Group LLC1478 Mecklenburg HighwayMooresville, NC 2811717750 Mooresville RoadMooresville, NC 28115220 NPNYWSW-5 HWG Mt. Mourne LLC1489/1495 Mecklenburg HighwayMooresville, NC 28117130 Valleymist LaneMooresville, NC 28117275 SSE N *Vacant with no structures on-siteYWSW-6 HWG Mt. Mourne LLCVacant - Mecklenburg HighwayMooresville, NC 28117130 Valleymist LaneMooresville, NC 28117290 SEAVacant with no structures on-siteYWSW-8 Joseph Albert Wilson Heirs117 Faith RoadMooresville, NC 28117P.O. Box 66Mount Mourne, NC 28123475 ESE PNYWSW-9Gaston Tuck1467 Mecklenburg HighwayMooresville, NC 28117P.O. Box 444Mount Mourne, NC 28123450 NNE PNYNotes:P / I / A / N = Potable / Irrigation / Abandoned / Not ActiveNote: All properties with the active water supply wells are outside of the Town of Mooresville, and the properties would need to be annexed to access the water line.Distance/Direction From Source Area(ft)SITE TABLE 2 MONITORING WELL CONSTRUCTION DETAILS DOT'S PLACE TOO 1484 Mecklenburg Highway Mount Mourne, Iredell County, North Carolina NCDEQ Incident #36185 MW-1R 11/17/09 30-40 2 40 100.02 DMW-1 03/12/21 60-65 2 65 100.04 MW-2 03/31/08 25-40 2 40 99.34 MW-3 03/31/08 25-40 2 40 98.83 MW-4 03/31/08 25-40 2 40 100.23 MW-5 02/11/10 20-35 2 35 100.68 MW-6 03/11/21 18-33 2 33 98.23 Notes: Top of casing elevation relative to arbitrary benchmark elevation of 100 feet Top of Casing Elevation (feet) Well ID Date Installed Screen Interval (feet) Well Diameter (inches) Total Depth (feet) TABLE 3 GROUNDWATER ELEVATION DATA DOT'S PLACE TOO 1484 Mecklenburg Highway Mount Mourne, Iredell County, North Carolina NCDEQ Incident #36185 11/17/09 31.71 68.31 02/11/10 28.66 71.36 01/07/11 29.01 71.01 05/10/11 28.02 72.00 10/19/11 30.19 69.83 07/20/12 29.96 70.06 02/07/13 33.67 66.35 08/25/14 29.64 70.38 05/18/15 30.49 69.53 02/15/16 32.15 67.87 08/22/17 31.99 68.03 09/03/19 25.55 74.47 03/18/21 23.96 76.06 07/25/23 29.53 70.49 05/21/09 29.75 69.59 11/06/09 31.02 68.32 02/11/10 27.22 72.12 01/07/11 27.95 71.39 05/10/11 26.65 72.69 10/19/11 29.43 69.91 07/20/12 29.49 69.85 02/07/13 32.99 66.35 08/25/14 29.35 69.99 05/18/15 29.63 69.71 02/15/16 31.27 68.07 08/22/17 Obstruction- Well not accessible 09/03/19 Could Not Find 03/18/21 Could Not Find 07/25/23 99.34 Well ID MW-1R 30-40 MW-2 25-40 Groundwater Elevation Depth to Groundwater TOC Elevation Screen Interval Gauging Date 100.02 Not Required Page 1 of 3 TABLE 3 GROUNDWATER ELEVATION DATA DOT'S PLACE TOO 1484 Mecklenburg Highway Mount Mourne, Iredell County, North Carolina NCDEQ Incident #36185 Well ID Groundwater Elevation Depth to Groundwater TOC Elevation Screen Interval Gauging Date 05/21/09 27.91 70.92 11/06/09 28.90 69.93 02/11/10 23.86 74.97 01/07/11 27.75 71.08 05/10/11 25.96 72.87 10/19/11 28.54 70.29 07/20/12 27.96 70.87 02/07/13 30.84 67.99 08/25/14 27.78 71.05 05/18/15 27.31 71.52 02/15/16 27.02 71.81 08/22/17 Obstruction- Well not accessible 09/03/19 24.17 74.66 03/18/21 Could Not Find 07/25/23 05/21/09 31.71 68.52 11/06/09 32.44 67.79 02/11/10 29.59 70.64 01/07/11 29.81 70.42 05/10/11 29.99 70.24 10/19/11 30.93 69.30 07/20/12 30.50 69.73 02/07/13 34.30 65.93 08/25/14 30.12 70.11 04/27/15 NM NM 05/18/15 31.22 69.01 02/15/16 32.78 67.45 08/22/17 32.73 67.50 09/03/19 26.30 73.93 03/18/21 24.70 75.53 07/25/23 30.38 69.85 MW-3 25-40 98.83 Not Required MW-4 25-40 100.23 Page 2 of 3 TABLE 3 GROUNDWATER ELEVATION DATA DOT'S PLACE TOO 1484 Mecklenburg Highway Mount Mourne, Iredell County, North Carolina NCDEQ Incident #36185 Well ID Groundwater Elevation Depth to Groundwater TOC Elevation Screen Interval Gauging Date 02/11/10 30.31 70.37 01/07/11 30.52 70.16 05/10/11 29.70 70.98 10/19/11 31.61 69.07 07/20/12 31.18 69.50 02/07/13 34.89 65.79 08/25/14 30.79 69.89 05/18/15 31.93 68.75 02/15/16 33.76 66.92 08/22/17 33.83 66.85 09/03/19 27.03 73.65 03/18/21 25.47 75.21 07/25/23 31.22 69.46 03/18/21 22.10 76.13 07/25/23 28.84 69.39 03/18/21 24.00 76.04 07/25/23 30.14 69.90 Notes: All measurements expressed in feet TOC = Top of Casing NM = Not Measured MW-5 20-35 100.68 MW-6 DMW-1 60-65 100.04 98.2318-33 Page 3 of 3 TABLE 4FIELD PARAMETERSDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185MW-1R 07/25/2320.710.153.6535.7MW-4 07/25/2323.110.352.7314.9MW-5 07/25/2323.560.205.0765.6MW-6 07/25/2319.160.273.5215.2DW-107/25/2320.930.189.8-436.4Notes:°C = degrees CelsiusmS/cm = milliSiemens per centimetermg/L = milligrams per literORP = oxidation-reduction potentialmV= millivoltssu = standard unitspH(su)Well IDSample DateTemperature (°C)Conductivity (mS/cm)Dissolved Oxygen(mg/L)ORP(mV)Page 1 of 1 TABLE 5RECENT GROUNDWATER ANALYTICAL RESULTSDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185Sample IDConstituent of ConcernBenzeneTolueneEthylbenzeneTotal XylenesChloroformNaphthalene1,2-Dibromoethane (EDB)1,2-DichloroethaneIsopropylbenzene n-Propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 50070 6 0.02 0.4 70 70 400 4005,000260,00080,00050,00070,0006,0005040025,00026,10028,50024,100MW-1R 07/25/231,680 35,400 2,210 23,650<13.8484 209<21.272.2J 134 2,770 714MW-4 07/25/23361 7,480 3,230 17,230<3.5371<7.4 <5.3190 498 3,210 858MW-5 07/25/2314.555.2 369 1,716 <0.06940.6 0.37J 1.035.381.2 770<0.71MW-6 07/25/2327.91379472,910 <1.4104<2.9 <2.1140 4442570784DW-107/25/23 <0.079 <0.090 <0.081 <0.234 0.26J <0.10 <0.15 <0.11 <0.11 <0.10 <0.031 <0.07107/25/23 <0.079 <0.090 <0.081 <0.234 <0.069 <0.10 <0.15 <0.11 <0.11 <0.10 <0.031 <0.07108/04/23 <0.079 <0.090 <0.081 <0.234 0.22J <0.10 <0.15 <0.11 <0.11 <0.10 <0.031 <0.071WSW-9 07/25/23 <0.079 <0.090 <0.081 <0.234 40.9* <0.10 <0.15 <0.11 <0.11 <0.10 <0.031 <0.071Notes:Concentrations are reported in micrograms per liter (µg/L)."<" = Not detected at or above the laboratory detection limit2L Standard = 15A NCAC 2L .0202 Groundwater Quality StandardsGCL = Gross Contamination LevelJ = Estimated value between laboratory method detection limit and reporting limitValues in BOLD exceed 2L StandardsValues In UNDERLINED AND BOLD text exceed GCL standards.NE - Not Established* Chloroform and other trihalomethanes reported in the water supply well sample WSW-9, presumed to be municipal water.2L StandardsGCL StandardsWSW-8 TABLE 6HISTORICAL WATER SUPPLY WELL ANALYTICAL RESULTSDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185Well IDSampleDateBenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherIsopropyl Ether1,2-Dibromoethane (EDB)Naphthalenen-ButylbenzeneMethylene ChlorideChloroformIsopropylbenzenen-propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 20 70 0.02 6 70 5 70 70 70 400 40005/21/09 <0.20 <0.27 <0.20 <0.40 <0.38 <0.21 <0.019 <0.39 <0.20 1.2 0.77 <0.24 <0.30 <0.20 <0.2511/05/09 <0.5 <0.5 <0.5 <1.5 <0.5 <0.5 <0.5 3.2 <0.5 <2.0 0.88 <0.5 <0.5 <0.5 <0.502/11/10 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.5001/07/11 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.061 <0.50 <0.50 <0.50 <0.17 <0.50 <0.50 <0.50 <0.5005/10/11 <0.27 <1.7 <1.7 <1.7 <0.19 0.38 J <0.61 <1.7 <0.17 <0.17 <1.7 <0.29 <0.24 <1.7 <1.710/19/11 <0.27 <1.7 <1.7 <1.7 0.22 J <0.052 <0.61 <1.7 <0.17 <0.17 0.6 <0.29 <0.24 <1.7 <1.704/27/20 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <2.0 <0.50 2.0 <0.50 <0.50 <0.50 <0.50 <0.5003/18/21Not Sampled05/21/09 <0.20 <0.27 <0.20 <0.40 <0.38 <0.21 <0.019 <0.39 <0.20 0.69 <0.20 <0.24 <0.30 <0.20 <0.2511/05/09 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <2.0 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.5002/11/10 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.5001/07/11 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.061 <0.50 <0.50 <0.50 <0.17 <0.50 <0.50 <0.50 <0.5005/10/11 <0.027 9.5 13 <0.17 <0.019 <0.052 <0.061 <0.17 0.81 <0.17 <0.17 1.8 3.8 45 1310/19/11 <0.027 <0.17 <0.17 <0.17 <0.019 <0.052 <0.061 <0.17 <0.50 <0.17 <0.17 <0.029 <0.024 <0.17 <0.1705/18/15 <0.079 <0.090 <0.092 <0.29 <0.090 <0.18 <0.089 <0.12 <0.054 <3.2 <0.14 <0.11 <0.094 <0.18 <0.1003/02/16 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <1.0 <0.50 <0.50 <0.50 <0.5008/22/17 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <1.0 <0.50 <5.0 <0.50 <0.50 <0.50 <0.50 <0.5004/27/20 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <2.0 <0.50 2.0 <0.50 <0.50 <0.50 <0.50 <0.5003/18/21Not SampledWSW-3(1477 Meck. Hwy)WSW-2 (1488 Meck. Hwy)2L StandardPage 1 of 3 TABLE 6HISTORICAL WATER SUPPLY WELL ANALYTICAL RESULTSDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185Well IDSampleDateBenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherIsopropyl Ether1,2-Dibromoethane (EDB)Naphthalenen-ButylbenzeneMethylene ChlorideChloroformIsopropylbenzenen-propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 20 70 0.02 6 70 5 70 70 70 400 4002L Standard05/21/09 <0.20 <0.27 <0.20 <0.40 <0.38 <0.21 <0.020 <0.39 <0.20 0.68 <0.20 <0.24 <0.30 <0.20 <0.2511/05/09 <0.20 <0.27 <0.20 <0.40 <0.38 <0.21 <0.019 <0.39 <0.20 0.75 <0.20 <0.24 <0.30 <0.20 <0.2505/10/11 <0.027 0.92 0.45 J 4.2 <0.019 <0.052 <0.061 2.0 <0.017 <0.17 <0.17 <0.29 <0.015 2.6 0.7908/25/14 <0.079 <0.090 <0.092 <0.29 <0.090 <0.18 <0.089 <0.12 <0.054 <3.2 <0.14 <0.11 <0.094 <0.18 <0.1005/18/15 <0.079 <0.090 <0.092 <0.29 <0.090 <0.18 <0.089 <0.12 <0.054 <3.2 <0.14 <0.11 <0.094 <0.18 <0.1003/02/16 <0.50 <0.50 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <5.0 <1.0 <0.50 <0.50 <0.50 <0.5005/21/09 <0.20 <0.27 <0.20 <0.40 <0.38 <0.21 <0.019 <0.39 <0.20 0.75 <0.20 <0.24 <0.30 <0.20 <0.2511/05/09 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <2.0 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.5002/11/10 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.5001/07/11 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.061 <0.50 <0.50 <0.50 <0.17 <0.50 <0.50 <0.50 <0.5005/10/11 <0.027 0.58 <0.17 0.81 <0.019 <0.052 <0.061 <0.17 <0.017 <0.17 <0.17 <0.029 <0.015 <0.17 <0.1710/19/11 <0.027 <0.17 <0.17 <0.17 <0.019 <0.052 <0.061 <0.17 0.81 <0.17 0.24 J <0.029 <0.024 <0.17 <0.1707/20/12 <0.027 <0.17 <0.17 <0.17 <0.019 <0.052 <0.061 <0.17 <0.017 <0.17 0.24 J <0.029 <0.024 <0.17 <0.1708/22/17 Not Sampled- Well Not Found- Does Not ExistWSW-5(1495 Meck. Hwy)WSW-4(1478 Meck. Hwy)Page 2 of 3 TABLE 6HISTORICAL WATER SUPPLY WELL ANALYTICAL RESULTSDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185Well IDSampleDateBenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherIsopropyl Ether1,2-Dibromoethane (EDB)Naphthalenen-ButylbenzeneMethylene ChlorideChloroformIsopropylbenzenen-propylbenzene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1 600 600 500 20 70 0.02 6 70 5 70 70 70 400 4002L Standard05/21/09 <0.20 <0.27 <0.20 <0.40 <0.38 <0.21 <0.019 <0.39 <0.20 <0.53 <0.20 <0.24 <0.30 <0.20 <0.2511/05/09 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <2.0 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.5002/11/10 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.5001/07/11 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.061 <0.50 <0.50 <0.50 0.20 J <0.50 <0.50 <0.50 <0.5005/10/11 <0.27 0.41 J <0.17 <0.17 <0.019 <0.052 <0.061 <0.17 <0.017 <0.17 0.22 J <0.029 <0.015 <0.17 <0.1710/19/11 <0.27 <0.17 <0.17 <0.17 <0.019 <0.052 <0.061 <0.17 0.81 <0.17 0.20 J <0.029 <0.024 <0.17 <0.1708/25/14 <0.079 <0.090 <0.092 <0.29 <0.090 <0.18 <0.089 <0.12 <0.054 <3.2 <0.14 <0.11 <0.094 <0.18 <0.1005/18/15 <0.079 <0.090 <0.092 <0.29 <0.090 <0.18 <0.089 <0.12 <0.054 <3.2 0.19 J <0.11 <0.094 <0.18 <0.1004/27/20 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <2.0 <0.50 2.0 <0.50 <0.50 <0.50 <0.50 <0.5003/18/21 <0.34 0.60 <0.30 <0.34 <0.42 <0.31 <0.27 <0.64 <0.49 <2.0 <0.35 <0.33 <0.34 <0.50 <0.3307/25/23 <0.079 <0.090 <0.081 <0.234 <0.053 <0.072 <0.15 <0.10 <0.066 <1.9 <0.069 <0.11 <0.10 <0.031 <0.07108/04/23 <0.079 <0.090 <0.081 <0.234 <0.053 <0.072 <0.15 <0.10 <0.066 <1.9 0.22J <0.11 <0.10 <0.031 <0.07102/11/10 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 0.64 <0.50 <0.50 <0.50 <0.5008/22/17 <0.50 <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <1.0 <0.50 <5.0 0.36 J <0.50 <0.50 <0.50 <0.5004/27/20 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <2.0 <0.50 <2.0 0.47 J <0.50 <0.50 <0.50 <0.5003/18/21 <0.34 <0.48 <0.30 <0.34 <0.42 <0.31 <0.27 <0.64 <0.49 <2.0 0.43 J <0.33 <0.34 <0.50 <0.3307/25/23 <0.079 <0.090 <0.081 <0.234 <0.053 <0.072 <0.15 <0.10 <0.066 <1.9 40.9 <0.11 <0.10 <0.031 <0.071Notes:ND = Not detected at or above the laboratory detection limitNE = Not EstablishedConcentrations are reported in micrograms per liter (µg/L) .Values in BOLD print indicate levels above 2L Standards* Chloroform and other trihalomethanes reported in the water supply well sample WSW-9, presumed to be municipal water.J = Estimated value below method reporting limitWSW-9/WSW-26(1467 Meck. Hwy) WSW-8 (117 Faith Rd)Page 3 of 3 TABLE 7HISTORICAL MONITORING WELL ANALYTICAL RESULTSDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185Well IDSampleDateBenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthalene1,2-Dibromoethane (EDB)n-Butylbenzenesec-Butylbenzene1,2-DichloroethaneIsopropylbenzenen-propylbenzeneTetrachloroetheneTrichloroethene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenep-IsopropyltolueneIsopropyl EtherMethylene ChlorideEthanol1,1-Dichloroethane1,1,2,2-Tetrachloroethane1,2,3-Trichloropropane2L Standard 1 600 600 500 20 6 0.02 70 70 0.04 70 70 0.7 3.0 400 400 25 70 5 4,000 6 0.2 0.005GCL Standard 5,000260,00080,00050,00020,0006,000505,9008,80040025,00026,1007003,00028,50024,10011,70070,0005,0004,000,0006,000200NEMW-1 02/14/081,730 31,900 5,150 25,500<104390.000470.8--19.8 274 708-- --3,140 98513.3 <50 -- -- -- -- --11/17/091,060 16,200 2,980 15,590<12.5306 18<12.5 <12.525<12.5483<12.5 --3,090 780NS <12.5 <50.0 ND -- -- --02/11/10460 6,100 1,700 6,800<10.086<10.0 40 14 <10.0120 320<10.0 --1,700 460<10.0 <10.0 <10.0 <2,000 -- -- --01/07/11 <11.053,000 5,500 27,800<200300 360<6.7 <4.2 <9.3210 570<5.7 --3,100 770<7.1 <21.0 <68.0 <13,000 -- -- --05/10/112,500 23,000 3,700 15,600<0.38280 15053.0 <0.2173 170.0 450<0.29 --2,500 69013.0 <1.0 <3.44,200-- -- --10/19/114,900 52,000 4,700 23,000<9.5240 J 200 J<8.4 <5.2 <12150 J 390<7.2 --2,300 670<8.9 <26 <85 <17,000 -- -- --07/20/125,60049,000 5,200 27,200<3.8280 300<3.3 <2.1270 160 420<2.9 --2,600 690<3.5 <10 <34 <6,600 -- -- --02/07/132,600 30,800 3,510 19,400<50.0405<50.0 <50.0 <50.0 <50.0253 312<50.0 --2,140 494NA <50.0 <200 NA -- ----08/25/143,800 64,000 4,400 24,600<18290 29024 J 22 J170 J 150 380 52 J 180 2,800 700<25 <36 <640 <5,600 <32 <25 <2405/18/152,500 35,000 4,500 29,900<45 <60140 J<27 <42 <97180 J 380<40 <383,100 660<62 <90 <1,600 <14,000 <79 <62 <6002/15/161,200 16,000 2,000 22,800<120280<120 60 J <120 <120110 J 220<120 <2503,500 760<120 <120 <120 <120 <120 <120 <12008/22/171,600 25,000 2,300 21,700<200 <400 <200 <200 <200 <800140 250<200 <2003,000 770<200 <200 <2,000 <20,000 <200 <200 <20009/03/193,030 39,500 2,080 16,500<500 <500316 J<500 <500 <500 <500 <500 <500 <5001,200 408 J<500 <500 <2,000 <100,000 <500 <500 <50003/18/21792 21,400 2,320 15,500<84.4317J 70.2J<98.0 <80.0 <64.492.4J<68.0 <58.4 <76.61,910<66.4 NA <61.6 <390 NA <73.4 <45.0 <52.207/25/231,680 35,400 2,210 23,650<10.7484 209<13.3 <17.0 <21.272.2J 134<17.1 <34.22,770 714NA <14.5 <378 <1010 <11.2 <14.8 <34.603/18/2112214 67.6 303 <0.846.7<0.54 3.4 <0.80 <0.64 8.8 <0.68 <0.58 <0.77 79.3 30.8 NA <0.62 <3.9 NA <0.73 <0.45 <0.5207/25/23 <0.079 <0.090 <0.081 <0.234 <0.053 <0.10 <0.15 <0.066 <0.085 <0.11 <0.11 <0.10 <0.086 <0.17 <0.031 <0.071 NA <0.072 <1.9 <5.0 <0.056 <0.074 <0.1704/01/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <0.010 <1.0 -- <1.0 <1.0 <1.0 -- -- <1.0 <1.0 <1.0 <5.0 -- -- -- -- --04/15/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <0.010 <1.0 NS NS <1.0 <1.0 NS -- <1.0 <1.0 <1.0 NS NS -- -- -- --05/21/09 <0.20 <0.27 <0.20 <0.40 <0.38 <0.39 <0.020 <0.20 <0.24 NS <0.24 <0.30 <0.36 -- <0.20 <0.25 <0.26 <0.21 0.72 -- -- -- --11/06/09 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 -- <0.50 <0.50 NS <0.50 <2.0 -- -- -- --02/11/10 <0.50 <0.50 <0.50 <1.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 -- <0.50 <0.50 <0.50 <0.50 <0.50 -- -- -- --01/07/11 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.061 <0.50 <0.50 <0.023 <0.50 <0.50 <0.50 -- <0.50 <0.50 <0.50 <0.50 <0.50 -- -- -- --05/10/11 <0.027 <0.17 <0.17 <0.17 <0.019 <0.17 <0.061 <0.017 <0.010 <0.023 <0.029 <0.024 <0.014 -- <0.17 <0.17 <0.018 <0.052 <0.17 -- -- -- --10/19/11 <0.027 <0.17 <0.17 <0.17 <0.019 <0.17 <0.061 <0.017 <0.010 <0.023 <0.029 <0.024 <0.014 -- <0.17 <0.17 <0.018 <0.052 <0.17 -- -- -- --07/20/12 <0.027 <0.17 <0.17 <0.17 <0.019 <0.17 <0.061 <0.017 <0.010 <0.023 <0.029 <0.024 <0.014 -- <0.17 <0.17 <0.018 <0.052 <0.17 -- -- -- --02/07/13 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 -- <0.50 <0.50 NA <0.50 2.0 -- -- -- --08/25/14 <0.079 <0.090 <0.092 <0.29 <0.090 <0.12 <0.089 <0.054 <0.084 <0.19 <0.11 <0.094 <0.080 <0.077 <0.18 <0.10 <0.12 <0.18 <3.2 <28 <0.16 <0.12 <0.1205/18/15 <0.079 <0.090 <0.092 <0.29 <0.090 <0.12 <0.089 <0.054 <0.084 <0.19 <0.11 <0.094 <0.080 <0.077 <0.18 <0.10 <0.12 <0.18 <3.2 <28 <0.16 <0.12 <0.1202/15/16 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <50 <1.0 <0.50 <0.5008/22/17Not Sampled - Obstruction - Well Not Accessible09/03/19Not Sampled - Could Not Find03/18/21Not Sampled - Could Not FindDMW-1MW-2MW-1RPage 1 of 3 TABLE 7HISTORICAL MONITORING WELL ANALYTICAL RESULTSDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185Well IDSampleDateBenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthalene1,2-Dibromoethane (EDB)n-Butylbenzenesec-Butylbenzene1,2-DichloroethaneIsopropylbenzenen-propylbenzeneTetrachloroetheneTrichloroethene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenep-IsopropyltolueneIsopropyl EtherMethylene ChlorideEthanol1,1-Dichloroethane1,1,2,2-Tetrachloroethane1,2,3-Trichloropropane2L Standard 1 600 600 500 20 6 0.02 70 70 0.04 70 70 0.7 3.0 400 400 25 70 5 4,000 6 0.2 0.005GCL Standard 5,000260,00080,00050,00020,0006,000505,9008,80040025,00026,1007003,00028,50024,10011,70070,0005,0004,000,0006,000200NE04/15/08 <1.0 <1.0 <1.0 <3.0 <1.0 <1.0 <0.010 <1.0 NS NS <1.0 <1.0 NS -- <1.0 <1.0 <1.0 NS NS -- -- -- --05/21/09 <0.20 <0.27 <0.20 <0.40 <0.38 <0.39 <0.019 <0.20 <0.24 NS <0.24 <0.30 <0.36 -- <0.520 <0.25 <0.26 <0.21 0.84 -- -- -- --11/06/09 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 -- <0.50 <0.50 NS <0.50 <2.0 -- -- -- --02/11/101.1<0.50 <0.50 1.2 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 -- <0.50 <0.50 <0.50 <0.50 <0.50 -- -- -- --01/07/114.30.79 1.2 <0.50 <0.50 <0.50 <0.061 <0.50 <0.50 <0.023 0.94 0.63 <0.050 -- 2.1 <0.50 <0.50 <0.50 <0.50 -- -- -- --05/10/11 <1.4 320 120760<0.9550<3.1 <0.84 <0.52 <1.2 <1.4 33 <0.72 -- 300 94 <0.89 <2.6 <8.5 -- -- -- --10/19/11 0.13 J <0.17 <0.17 <0.17 <0.019 <0.17 <0.061 <0.017 <0.010 <0.023 <0.029 <0.024 <0.014 -- <0.17 <0.17 <0.018 <0.052 <0.17 -- -- -- --07/20/12 <0.27 2.1 J <0.17 <0.17 <0.019 <0.17 <0.061 <0.017 <0.010 <0.023 <0.029 <0.024 <0.014 -- <0.17 <0.17 <0.018 <0.052 <0.17 ------ --02/07/13 <0.50 <0.50 <0.50 <1.5 <0.50 <2.0 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 -- <0.50 <0.50 NA <0.50 <2.0 -- -- -- --08/25/14 <0.079 <0.090 <0.092 <0.29 <0.090 <0.12 <0.089 <0.054 <0.084 <0.19 <0.11 <0.094 <0.080 <0.077 <0.18 <0.10 <0.12 <0.18 <3.2 <28 <0.16 <0.12 <0.1205/18/15 <0.079 <0.090 <0.092 <0.29 <0.090 <0.12 <0.089 <0.054 <0.084 <0.19 <0.11 <0.094 <0.080 <0.077 <0.18 <0.10 <0.12 <0.18 <3.2 <28 <0.16 <0.12 <0.1202/15/16 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <50 <1.0 <0.50 <0.5008/22/17Not Sampled - Obstruction - Well Not Accessible09/03/19 0.16 J <0.50 <0.50 <1.5 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <100 <0.50 <0.50 <0.5003/18/21Not Sampled - Could Not Locate04/15/08226 1,790 866 4,160<1.047.3 0.952.92 NS NS 43.996.5NS --517119 6.37 NS NS -- -- -- --05/21/091,900 14,000 3,000 19,000<76.0 <78.055.9<40.0 <48.0 NS110 370<72.0 --1,700 410<0.26 <0.21 <110.0 -- <66 NS <11011/06/091,170 11,700 3,110 16,710<5.0160 16.8<5.0 <5.014.8 98.1 250<5.0 --1,510373 NS <5.0 <20.0 -- <5.0 <5.0 <5.002/11/101,900 19,000 4,500 25,000<25.0250 94<25.0 <25.0 <25.0170 450<25.0 --3,000 810 43<25.0 <25.0 -- <25.0 <25.0 <25.001/07/111,500 14,000 4,600 24,800<50.0270 6125 J <50.0 <2.3180 520<1.4 --2,900 760<5.2 <50.0 <17.0 -- <5.4 <1.3 <3305/10/111,300 4,900 2,800 10,000<0.019150 9921 <0.01079 110 340<0.014 --1,300380 3.6 5.3 <0.17 -- 1.25.02.110/19/111,200 10,000 3,700 19,000<1.9180 18 J33 J <1.025 J 130 350<1.4 --2,000 550<1.8 <5.2 <17 -- <5.4 <1.3 <3307/20/121,200 9,700 4,800 25,700<1.9260 33 J<1.7 <1.0 <2.3180 460<1.4 --2,700 710<1.8 <5.2 <17 -- <5.4 <1.3 <3302/07/13471 4,080 3,380 18,810<50.0364<50.0 <50.0 <50.0 <50.0252 292<50.0 --1,910 443NA <50.0 <200 -- <50.0 <50.0 <50.008/25/14750 8,800 4,700 26,500<18290<18 <11 <17 <39160 400<16 <153,100 830<25 <36 <640 <5,600 <32 <25 <2405/18/15520 3,300 4,800 23,000<9.0 <12 <8.9 39 J 14 J <19180 470<8.0 <7.73,000 700<12 <18 <320 <2,800 <16 <12 <1202/15/16540 2,200 2,400 18,400<25170<25 24 J 7.5 J <2592 220<25 <252,000 5407.5 J <25 <250 <2,500 <25 <25 <2508/22/17550 2,100 1,100 16,100<50120 30<50 <50 <200 47 97 <50 <501,500 490<50 <50 <500 <5,000 <200 <50 <5009/03/19978 11,100 2,920 18,700<130182 87.7 J<130 <13052.3 J 90.9 J 286<130 <1302,650 776<130 <130 <500 <25,000 <130 <130 <13003/18/21860 9,360 2,320 13,800<42.2283 121<49.0 <40.052.6 133<34.0 <29.2 <38.32,550<33.2 NA <30.8 <195 NA <36.7 <22.5 <26.107/25/23361 7,480 3,230 17,230<2.7371<7.4 <3.3 <4.3 <5.3190 498<4.3 <8.63,210 858NA <3.6 <94.5 <252 <2.8 <3.7 <8.6MW-3MW-4Page 2 of 3 TABLE 7HISTORICAL MONITORING WELL ANALYTICAL RESULTSDOT'S PLACE TOO1484 Mecklenburg HighwayMount Mourne, Iredell County, North CarolinaNCDEQ Incident #36185Well IDSampleDateBenzeneTolueneEthylbenzeneTotal XylenesMethyl Tertiary Butyl EtherNaphthalene1,2-Dibromoethane (EDB)n-Butylbenzenesec-Butylbenzene1,2-DichloroethaneIsopropylbenzenen-propylbenzeneTetrachloroetheneTrichloroethene1,2,4-Trimethylbenzene1,3,5-Trimethylbenzenep-IsopropyltolueneIsopropyl EtherMethylene ChlorideEthanol1,1-Dichloroethane1,1,2,2-Tetrachloroethane1,2,3-Trichloropropane2L Standard 1 600 600 500 20 6 0.02 70 70 0.04 70 70 0.7 3.0 400 400 25 70 5 4,000 6 0.2 0.005GCL Standard 5,000260,00080,00050,00020,0006,000505,9008,80040025,00026,1007003,00028,50024,10011,70070,0005,0004,000,0006,000200NE02/11/10590 5,100 4,200 23,600<25.0280<25.0 <25.0 <25.0 <25.0240 720<25.0 --3,800 980<25.0 <25.0 <25.0 -- <25.0 <0.50 <25.001/07/11270 3,100 2,400 13,900<50.0140 15 J<50.0 <50.028 J 130 360<1.4 --2,300 650<50.0 <50.0 <17.0 -- <5.4 <1.3 <3005/10/11250 1,900 1,600 5,700<0.019110 17<0.17 14 <0.023180 420<0.014 --1,200 68012 <0.052 <0.17 -- <0.094 <0.013 <0.3310/19/11530 6,200 3,400 19,400<1.9210 38 J43 J <1.073 160 500<1.4 --2,900 800<1.8 <5.2 <17 -- <5.4 <1.3 <3307/20/12560 4,900 2,900 15,400<0.95210 6551 16 J84 150 390<0.72 --2,300 6809.0 J <2.6 <8.5 -- <4.7 <0.65 <1702/07/13 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS08/25/1476 1,100 1,100 6,500<9.0100<8.9 12 J 11 J <1976 200<8.0 <7.71,500400 <12 <18 <320 <2,800 <16 <12 <1205/18/155.9140 2001,270<0.90 <1.2 <0.89 <0.54 4.3 J <1.9 2273<0.80 <0.77510180 4.6 J <1.8 <32 <500 <1.6 <1.2 <1.202/15/1662700 29016,400<50210<50 63 <50 <50 32 J77<50 <503,500 96016 J <50 <500 <5,000 <100 <50 <5008/22/177.0130 977,400<2572<25 <25 <25 <100 6.5 8.0 <25 <251,400 740<25 <25 <250 <2,500 <25 <25 <5009/03/197.9 J28.3 2831,890<1015.7<10 <10 <10 <10 12.7 38.9 <10 <10484140 <10 <10 <40 <2,000 <10 <10 <1003/18/2167.9249680 4,0408.068.7 5.8<4.9 <4.07.750.5 <3.4 <2.9 <3.81,070<3.3 NA <3.1 <19.5 NA <3.7 <2.2 <2.607/25/2314.555.2 3691,716<0.05340.6 0.37J<0.066 <0.0851.035.381.2<0.086 <0.17770<0.71 NA <0.072 <1.9 <5.0 <0.056 <0.074 <0.1703/18/21 <4.3 33.6 4681,260<5.344.2<3.4 <6.1 <5.0 <4.090.2<4.2 <3.6 <4.81,520 459NA <3.8 <24.4 NA <4.6 <2.8 <3.307/25/2327.9137947 2,910<1.1104<2.9 <1.3 <1.7 <2.1140 444<1.7 <3.42,570 784NA <1.4 <37.8 <101 <1.1 <1.5 <3.5Notes:Concentrations are reported in micrograms per liter (µg/L).GCL = Gross Contamination Level2L Standard = 15A NCAC 2L .0202 Groundwater Quality StandardsJ = Estimated valueNA = Not AnalyzedNE = Not EstablishedNS = Not SampledValues in BOLD exceed 2L StandardsValues In UNDERLINED AND BOLD text exceed GCL standards. -- = No analytical data reported for constituentSample results for MW-5 on July 25, 2023 reported as the laboratory WSW-8 results due to presumed swapping of sample identifications by the laboratoryMW-6MW-5Page 3 of 3 FIGURES REFERENCE: USGS 7.5-MINUTE MAP, MOORESVILLE, NORTH CAROLINA. DATED 1993 LATITUDE:ƒ1257+ LONGITUDE:ƒ:(67 SITE CAD FILE PREP. BY REV. BY SCALE PROJECT NO. TITLE DATE LB EG 05/06/2021 SLC3681501 500'1,000'LEGENDWATER SUPPLYWELL LOCATIONSource: NC GeospatialDatabaseWSW-31477 Mecklenburg HighwaySITEWSW-8117 Faith RoadWSW-41478 Mecklenburg HighwayWSW-6Vacant Parcel - Well AbandonedWSW-51493/1495 Mecklenburg HighwayWSW-21488 Mecklenburg HighwayWSW-91467 Mecklenburg HighwayASSOCIATES OF NORTH CAROLINA, P.C. (704) 529-3200 FAX (704) 529-3272 PROJECT NO. Charlotte, North Carolina 28273 NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE S:\Administrative\ATC RETURNS!\ATC Logo - 2015\ATC Logo_Full Color_CMYK.jpgWSW-SITE MW-1RMW-4MW-3MW-2MW-5FORMER DOT'S PLACE TOORESIDENCERESIDENCEEDGE OF PAVEMENTFORMER DOT'S PLACE TOOEDGE OF PAVEMENTMW-6MECKLE N B U R G H I G H W A YFORMER UST BASINFORMER UST BASINDW-1LEGENDMONITORING WELLLOCATIONPROPERTY BOUNDARYWATER SUPPLY WELL LOCATIONSource: GOOGLEEARTH PROCAD FILE ASSOCIATES OF NORTH CAROLINA, P.C. (704) 529-3200 FAX (704) 529-3272 PROJECT NO. Charlotte, North Carolina 28273 NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE WSW-SITE MW-1RMW-4MW-3MW-2MW-5FORMER DOT'S PLACE TOORESIDENCERESIDENCEEDGE OF PAVEMENTMW-2FORMER DOT'S PLACE TOOEDGE OF PAVEMENTMW-6MECKLE N B U R G H I G H W A YFORMER UST BASINFORMER UST BASINDW-1MW-3LEGEND69.39NRNOT REQUIREDMONITORING WELL LOCATIONPROPERTYBOUNDARYGROUNDWATER ELEVATIONGROUNDWATER ELEVATION CONTOUR LINE (DASHED WHERE INFERRED)GROUNDWATER DIRECTIONAL FLOWCAD FILE MW-3RESIDENCERESIDENCEASSOCIATES OF NORTH CAROLINA, P.C. (704) 529-3200 FAX (704) 529-3272 PROJECT NO. Charlotte, North Carolina 28273 NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE NR69.50 Source: GOOGLEEARTH PROGROUNDWATER ELEVATIONA MEASURED ON 07/25/2023 1.NR69.3969.8569.4669.7 5 70.25 70.00 69.75 69.50 70.49[69.90] MW-1RMW-4MW-3MW-2MW-5FORMER DOT'S PLACE TOORESIDENCERESIDENCEEDGE OF PAVEMENTMW-2FORMER DOT'S PLACE TOOEDGE OF PAVEMENTMW-6MECKLE N B U R G H I G H W A YFORMER UST BASINFORMER UST BASINDW-1MW-3LEGENDMONITORING WELLLOCATIONISOCONCENTRATIONCONTOUR LINE (DASHEDWHERE INFERRED)PROPERTYBOUNDARYBENZENEISOCONCENTRATIONNOT REQUIREDNOT USED INCONTOURINGCAD FILERESIDENCE RESIDENCEASSOCIATES OF NORTH CAROLINA, P.C. (704) 529-3200 FAX (704) 529-3272 PROJECT NO. Charlotte, North Carolina 28273 NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE NR14.50Source: GOOGLEEARTH PROGROUNDWATER SAMPLES TAKEN 07/25/20231.NR361NR10 µg/L1 µg/L[<0.079][0.079]1,000 µg/L1,68027.9361100 µg/L MW-1RMW-4MW-3MW-2MW-5FORMER DOT'S PLACE TOORESIDENCERESIDENCEEDGE OF PAVEMENTMW-2FORMER DOT'S PLACE TOOEDGE OF PAVEMENTMW-6MECKLE N B U R G H I G H W A YFORMER UST BASINFORMER UST BASINDW-1MW-3LEGENDMONITORING WELLLOCATIONISOCONCENTRATIONCONTOUR LINE (DASHEDWHERE INFERRED)PROPERTYBOUNDARYEDB ISOCONCENTRATIONNOT REQUIREDNOT USED INCONTOURINGCAD FILERESIDENCE RESIDENCEASSOCIATES OF NORTH CAROLINA, P.C. (704) 529-3200 FAX (704) 529-3272 PROJECT NO. Charlotte, North Carolina 28273 NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE NR<0.37JSource: GOOGLEEARTH PROGROUNDWATER SAMPLES TAKEN 07/25/20231. 2.NR209NR200 µg/L[<0.15]20.0 µg/L0.2 µg/L2.0 µg/L0.02 µg/L<7.4<2.9[<0.15]209 MW-1RMW-4MW-3MW-2MW-5FORMER DOT'S PLACE TOORESIDENCERESIDENCEEDGE OF PAVEMENTMW-2FORMER DOT'S PLACE TOOEDGE OF PAVEMENTMW-6MECKLE N B U R G H I G H W A YFORMER UST BASINFORMER UST BASINDW-1MW-3LEGENDMONITORING WELLLOCATIONPROPERTYBOUNDARYNOT REQUIREDCAD FILERESIDENCE RESIDENCEASSOCIATES OF NORTH CAROLINA, P.C. (704) 529-3200 FAX (704) 529-3272 PROJECT NO. Charlotte, North Carolina 28273 NOTES: DATE TITLE SCALEREV. BYPREP. BYCAD FILE NRSource: GOOGLEEARTH PROGROUNDWATER SAMPLES TAKEN 07/25/20231.NRNR APPENDIX A CONCEPTUAL SITE MODEL Site Name: Dot's Place Too Date:9/5/2023 Property Owner: Grant William Bolmer Jr. Last Field Event Date:8/4/2023 Site Name: Dot's Place Too Release Discovery Date: October 2006 NCDEQ UST Incident No.: 36185 Source of Release: Leaking UST System Facility ID No.: Unknown Estimated Volume of Release: Unknown Risk Classification: High Risk Rank:0330D Gasoline (leaded)Yes Site Address:1484 Mecklenburg Highway Gasoline (unleaded)No Site City, ST ZIP:Mount Mourne Gasoline (ethanol blend)No Site County:Iredell Diesel No NCDEQ Regional Office:Mooresville Regional Office Kerosene No Active UST Facility:No Heating Oil (#2)No USTs Present:No Heating Oil (>#2)No Motor Oil No Hydraulic Oil Yes Major Soil Type:Silt Used Oil No Surface Cover over impacted soil: Unpaved soil Utilities within plume (Y/N/U): U >S‐W MSCCs (Y/N/U):Y >Residential MSCCs (Y/N/U): N Site (Current):Landscaping Business >Comm/Ind MSCCs (Y/N/U): N Site (Future):Landscaping Business North Adjacent:Residential and agricultural East Adjacent:Railroad and residential Litho‐Tectonic Zone Charlotte Belt South Adjacent:Residential Geologic Formation Unknown West Adjacent:Residential and agricultural Rock Type Granite Depth to Bedrock (ft bgs)~55 feet bgs Municipal Water (Y/N/U):Available Active Potable Wells <1000 ft (#/U): 24 Active Potable Wells <500 ft (#/U): 4 Depth to water (ft‐bgs)Historically ~22 to 35 Impacted Wells (Y/N/U):N Gradient (ft/ft):0.011 (SE) Any wells <250 ft (Y/N/U): WSW‐2 located on site Direction (N E S W combo):Southeast (and partially) West Hydraulic Conductivity (ft/day): Unknown <500 ft (Y/N):N Total Porosity (%):Unknown Type of Surface Water:intermittent stream Effective Porosity (%):Unknown Name of Nearest Stream:NA Flow Rate (ft/year):Unknown Stream Classification:NA COCs >2L (Y/N/U):Y Impacted Surface Water (Y/N/U): U COCs >2L Extent Defined (Y/N): N ‐ >2L downgradient in MW‐5 COCs >GCLs (Y/N/U):Y COCs >GCLs (Wells):MW‐1R (EDB)>LEL in Structures:Unknown COCs >GCLs Extent Defined (Y/N): Y Vapors in Buildings:Unknown COCs >2B Standards by 10X (Y/N/U): Yes Slab‐on‐grade or Crawlspace: Unknown LNAPL (Y/N/U):N Dissolved VOCs <5 ft of Structures: Unknown LNAPL (Max Thickness ft):NA LNAPL <15 ft of Structures:No LNAPL (Wells):NA Basement <30 ft of Dissolved COCs: Unknown LNAPL Extent Defined (Y/N): NA LNAPL (<5 ft beneath buildings/U): NA Utilities within plume (Y/N/U): Unknown Alternative Water Source:Municipal water to WSW users NORP:NA Site Remediation:NA Soil Excavation:NA AFVR:NA MMPE:NA SVE/AS:NA Other:NA CONCEPTUAL SITE MODEL  Soil Information Possible Path(s) to Closure Site Information Release Information Petroleum Type Released Geologic Information Groundwater Information Comments: Receptor Information Water Supply Vapor Additional Support Documentation Available / Data Gaps: qHRSC if chemical injection pursued. Water supply well connection agreements to  WSW users needed for all <500 feet to pursue this option. Fate & Transport  modeling to evaluate potential impact to other WSWs >500 feet for consideration  of an NFA. Approach (general discussion): Address GCLs in groundwater Surface Water Land Use / Zoning EDB > GCLS, multiple VOCs > 2L, multiple water supply wells within 500 feet.  Additional assessment for chemical injection, or combined MMPE/AS event to  reduce VOCs <GCLs and connection WSW users <500 feet to muncipal water.  Possible replacement irrigation well on‐site. Page 1 of 1 APPENDIX B FIELD NOTES AND PHOTOGRAPHS Proje t · {J Dot’s Place Too July 2023 NCDEQ Incident No. 36185 ATC Project No. STL3618501 Photo 1: DMW-1. Photo 2 MW-1R. Photo 3: MW-5. Photo 4: MW-4. Photo 5: Sampling Point WSW-8. . APPENDIX C LABORATORY ANALYTICAL REPORTS #=CL# August 02, 2023 LIMS USE: FR - NOELLE FRANCE LIMS OBJECT ID: 92679292 92679292 Project: Pace Project No.: RE: Noelle France ATC Group Services LLC- South Charlotte 7606 Whitehall Exe Center Dr Suite 800 Charlotte, NC 28273 DOT'S PLACE TOO MOUNT MOURNE N Dear Noelle France: Enclosed are the analytical results for sample(s) received by the laboratory on July 26, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Taylor M Cannon taylor.cannon@pacelabs.com Project Manager (704)875-9092 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 38 #=CP# CERTIFICATIONS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 38 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Lab ID Sample ID Matrix Date Collected Date Received 92679292001 MW-1R Water 07/25/23 09:40 07/26/23 06:00 92679292002 MW-4 Water 07/25/23 10:55 07/26/23 06:00 92679292003 MW-5 Water 07/25/23 11:35 07/26/23 06:00 92679292004 MW-6 Water 07/25/23 09:05 07/26/23 06:00 92679292005 DW-1 Water 07/25/23 10:19 07/26/23 06:00 92679292006 WSW-8 Water 07/25/23 11:50 07/26/23 06:00 92679292007 WSW-9 Water 07/25/23 12:05 07/26/23 06:00 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 38 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92679292001 MW-1R SM 6200B 69 PASI-CSAS 92679292002 MW-4 SM 6200B 69 PASI-CSAS 92679292003 MW-5 SM 6200B 69 PASI-CSAS 92679292004 MW-6 SM 6200B 69 PASI-CSAS 92679292005 DW-1 SM 6200B 69 PASI-CSAS 92679292006 WSW-8 SM 6200B 69 PASI-CSAS 92679292007 WSW-9 SM 6200B 69 PASI-CSAS PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: MW-1R Lab ID: 92679292001 Collected: 07/25/23 09:40 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <1490 ug/L 07/27/23 21:46 75-85-420000 1490 200 tert-Amylmethyl ether <24.8 ug/L 07/27/23 21:46 994-05-82000 24.8 200 Benzene 1680 ug/L 07/27/23 21:46 71-43-2100 15.7 200 Bromobenzene <27.0 ug/L 07/27/23 21:46 108-86-1100 27.0 200 Bromochloromethane <18.9 ug/L 07/27/23 21:46 74-97-5100 18.9 200 Bromodichloromethane <34.0 ug/L 07/27/23 21:46 75-27-4100 34.0 200 Bromoform <39.4 ug/L 07/27/23 21:46 75-25-2100 39.4 200 Bromomethane <44.4 ug/L 07/27/23 21:46 74-83-91000 44.4 200 tert-Butyl Alcohol <818 ug/L 07/27/23 21:46 75-65-010000 818 200 n-Butylbenzene <13.3 ug/L 07/27/23 21:46 104-51-8100 13.3 200 sec-Butylbenzene <17.0 ug/L 07/27/23 21:46 135-98-8100 17.0 200 tert-Butylbenzene <17.1 ug/L 07/27/23 21:46 98-06-6100 17.1 200 tert-Butyl Formate <60.0 ug/L 07/27/23 21:46 762-75-410000 60.0 200 Carbon tetrachloride <33.8 ug/L 07/27/23 21:46 56-23-5100 33.8 200 Chlorobenzene <16.9 ug/L 07/27/23 21:46 108-90-7100 16.9 200 Chloroethane <34.6 ug/L 07/27/23 21:46 75-00-3200 34.6 200 Chloroform <13.8 ug/L 07/27/23 21:46 67-66-3100 13.8 200 Chloromethane <35.0 ug/L 07/27/23 21:46 74-87-3200 35.0 200 2-Chlorotoluene <25.8 ug/L 07/27/23 21:46 95-49-8100 25.8 200 4-Chlorotoluene <19.1 ug/L 07/27/23 21:46 106-43-4100 19.1 200 1,2-Dibromo-3-chloropropane <35.8 ug/L 07/27/23 21:46 96-12-8200 35.8 200 Dibromochloromethane <29.6 ug/L 07/27/23 21:46 124-48-1100 29.6 200 1,2-Dibromoethane (EDB)209 ug/L 07/27/23 21:46 106-93-4100 29.4 200 Dibromomethane <37.4 ug/L 07/27/23 21:46 74-95-3100 37.4 200 1,2-Dichlorobenzene <18.8 ug/L 07/27/23 21:46 95-50-1100 18.8 200 1,3-Dichlorobenzene <19.6 ug/L 07/27/23 21:46 541-73-1100 19.6 200 1,4-Dichlorobenzene <17.9 ug/L 07/27/23 21:46 106-46-7100 17.9 200 Dichlorodifluoromethane <24.6 ug/L 07/27/23 21:46 75-71-8100 24.6 200 1,1-Dichloroethane <11.2 ug/L 07/27/23 21:46 75-34-3100 11.2 200 1,2-Dichloroethane <21.2 ug/L 07/27/23 21:46 107-06-2100 21.2 200 1,1-Dichloroethene <15.7 ug/L 07/27/23 21:46 75-35-4100 15.7 200 cis-1,2-Dichloroethene <22.2 ug/L 07/27/23 21:46 156-59-2100 22.2 200 trans-1,2-Dichloroethene <20.2 ug/L 07/27/23 21:46 156-60-5100 20.2 200 1,2-Dichloropropane <27.2 ug/L 07/27/23 21:46 78-87-5100 27.2 200 1,3-Dichloropropane <17.1 ug/L 07/27/23 21:46 142-28-9100 17.1 200 2,2-Dichloropropane <24.4 ug/L 07/27/23 21:46 594-20-7100 24.4 200 1,1-Dichloropropene <13.2 ug/L 07/27/23 21:46 563-58-6100 13.2 200 cis-1,3-Dichloropropene <17.9 ug/L 07/27/23 21:46 10061-01-5100 17.9 200 trans-1,3-Dichloropropene <26.4 ug/L 07/27/23 21:46 10061-02-6100 26.4 200 Diisopropyl ether <14.5 ug/L 07/27/23 21:46 108-20-3100 14.5 200 Ethanol <1010 ug/L 07/27/23 21:46 64-17-540000 1010 200 Ethylbenzene 2210 ug/L 07/27/23 21:46 100-41-4100 16.2 200 Ethyl-tert-butyl ether <22.4 ug/L 07/27/23 21:46 637-92-32000 22.4 200 Hexachloro-1,3-butadiene <70.2 ug/L 07/27/23 21:46 87-68-3400 70.2 200 Isopropylbenzene (Cumene)72.2J ug/L 07/27/23 21:46 98-82-8100 21.2 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: MW-1R Lab ID: 92679292001 Collected: 07/25/23 09:40 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <378 ug/L 07/27/23 21:46 75-09-2400 378 200 Methyl-tert-butyl ether <10.7 ug/L 07/27/23 21:46 1634-04-4100 10.7 200 Naphthalene 484 ug/L 07/27/23 21:46 91-20-3400 20.2 200 n-Propylbenzene 134 ug/L 07/27/23 21:46 103-65-1100 21.0 200 Styrene <27.4 ug/L 07/27/23 21:46 100-42-5100 27.4 200 1,1,1,2-Tetrachloroethane <18.2 ug/L 07/27/23 21:46 630-20-6100 18.2 200 1,1,2,2-Tetrachloroethane <14.8 ug/L 07/27/23 21:46 79-34-5100 14.8 200 Tetrachloroethene <17.1 ug/L 07/27/23 21:46 127-18-4100 17.1 200 Toluene 35400 ug/L 07/27/23 21:46 108-88-3100 18.0 200 1,2,3-Trichlorobenzene <24.2 ug/L 07/27/23 21:46 87-61-6400 24.2 200 1,2,4-Trichlorobenzene <31.2 ug/L 07/27/23 21:46 120-82-1400 31.2 200 1,1,1-Trichloroethane <21.4 ug/L 07/27/23 21:46 71-55-6100 21.4 200 1,1,2-Trichloroethane <19.1 ug/L 07/27/23 21:46 79-00-5100 19.1 200 Trichloroethene <34.2 ug/L 07/27/23 21:46 79-01-6100 34.2 200 Trichlorofluoromethane <28.8 ug/L 07/27/23 21:46 75-69-4200 28.8 200 1,2,3-Trichloropropane <34.6 ug/L 07/27/23 21:46 96-18-4100 34.6 200 1,2,4-Trimethylbenzene 2770 ug/L 07/27/23 21:46 95-63-6100 6.1 200 1,3,5-Trimethylbenzene 714 ug/L 07/27/23 21:46 108-67-8100 14.3 200 Vinyl chloride <29.8 ug/L 07/27/23 21:46 75-01-4200 29.8 200 m&p-Xylene 15900 ug/L 07/27/23 21:46 179601-23-1200 18.7 200 o-Xylene 7750 ug/L 07/27/23 21:46 95-47-6100 28.8 200 Surrogates 1,2-Dichloroethane-d4 (S)99 %07/27/23 21:46 17060-07-070-130 200 4-Bromofluorobenzene (S)90 %07/27/23 21:46 460-00-470-130 200 Toluene-d8 (S)100 %07/27/23 21:46 2037-26-570-130 200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: MW-4 Lab ID: 92679292002 Collected: 07/25/23 10:55 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <372 ug/L 07/28/23 17:06 75-85-45000 372 50 tert-Amylmethyl ether <6.2 ug/L 07/28/23 17:06 994-05-8500 6.2 50 Benzene 361 ug/L 07/28/23 17:06 71-43-225.0 3.9 50 Bromobenzene <6.8 ug/L 07/28/23 17:06 108-86-125.0 6.8 50 Bromochloromethane <4.7 ug/L 07/28/23 17:06 74-97-525.0 4.7 50 Bromodichloromethane <8.5 ug/L 07/28/23 17:06 75-27-425.0 8.5 50 Bromoform <9.8 ug/L 07/28/23 17:06 75-25-225.0 9.8 50 Bromomethane <11.1 ug/L 07/28/23 17:06 74-83-9250 11.1 50 tert-Butyl Alcohol <204 ug/L 07/28/23 17:06 75-65-02500 204 50 n-Butylbenzene <3.3 ug/L 07/28/23 17:06 104-51-825.0 3.3 50 sec-Butylbenzene <4.3 ug/L 07/28/23 17:06 135-98-825.0 4.3 50 tert-Butylbenzene <4.3 ug/L 07/28/23 17:06 98-06-625.0 4.3 50 tert-Butyl Formate <15.0 ug/L 07/28/23 17:06 762-75-42500 15.0 50 Carbon tetrachloride <8.4 ug/L 07/28/23 17:06 56-23-525.0 8.4 50 Chlorobenzene <4.2 ug/L 07/28/23 17:06 108-90-725.0 4.2 50 Chloroethane <8.6 ug/L 07/28/23 17:06 75-00-350.0 8.6 50 Chloroform <3.5 ug/L 07/28/23 17:06 67-66-325.0 3.5 50 Chloromethane <8.8 ug/L 07/28/23 17:06 74-87-350.0 8.8 50 2-Chlorotoluene <6.4 ug/L 07/28/23 17:06 95-49-825.0 6.4 50 4-Chlorotoluene <4.8 ug/L 07/28/23 17:06 106-43-425.0 4.8 50 1,2-Dibromo-3-chloropropane <9.0 ug/L 07/28/23 17:06 96-12-850.0 9.0 50 Dibromochloromethane <7.4 ug/L 07/28/23 17:06 124-48-125.0 7.4 50 1,2-Dibromoethane (EDB)<7.4 ug/L 07/28/23 17:06 106-93-425.0 7.4 50 Dibromomethane <9.4 ug/L 07/28/23 17:06 74-95-325.0 9.4 50 1,2-Dichlorobenzene <4.7 ug/L 07/28/23 17:06 95-50-125.0 4.7 50 1,3-Dichlorobenzene <4.9 ug/L 07/28/23 17:06 541-73-125.0 4.9 50 1,4-Dichlorobenzene <4.5 ug/L 07/28/23 17:06 106-46-725.0 4.5 50 Dichlorodifluoromethane <6.2 ug/L 07/28/23 17:06 75-71-825.0 6.2 50 1,1-Dichloroethane <2.8 ug/L 07/28/23 17:06 75-34-325.0 2.8 50 1,2-Dichloroethane <5.3 ug/L 07/28/23 17:06 107-06-225.0 5.3 50 1,1-Dichloroethene <3.9 ug/L 07/28/23 17:06 75-35-425.0 3.9 50 cis-1,2-Dichloroethene <5.6 ug/L 07/28/23 17:06 156-59-225.0 5.6 50 trans-1,2-Dichloroethene <5.0 ug/L 07/28/23 17:06 156-60-525.0 5.0 50 1,2-Dichloropropane <6.8 ug/L 07/28/23 17:06 78-87-525.0 6.8 50 1,3-Dichloropropane <4.3 ug/L 07/28/23 17:06 142-28-925.0 4.3 50 2,2-Dichloropropane <6.1 ug/L 07/28/23 17:06 594-20-725.0 6.1 50 1,1-Dichloropropene <3.3 ug/L 07/28/23 17:06 563-58-625.0 3.3 50 cis-1,3-Dichloropropene <4.5 ug/L 07/28/23 17:06 10061-01-525.0 4.5 50 trans-1,3-Dichloropropene <6.6 ug/L 07/28/23 17:06 10061-02-625.0 6.6 50 Diisopropyl ether <3.6 ug/L 07/28/23 17:06 108-20-325.0 3.6 50 Ethanol <252 ug/L 07/28/23 17:06 64-17-510000 252 50 Ethylbenzene 3230 ug/L 07/28/23 17:06 100-41-425.0 4.1 50 Ethyl-tert-butyl ether <5.6 ug/L 07/28/23 17:06 637-92-3500 5.6 50 Hexachloro-1,3-butadiene <17.6 ug/L 07/28/23 17:06 87-68-3100 17.6 50 Isopropylbenzene (Cumene)190 ug/L 07/28/23 17:06 98-82-825.0 5.3 50 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: MW-4 Lab ID: 92679292002 Collected: 07/25/23 10:55 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <94.5 ug/L 07/28/23 17:06 75-09-2100 94.5 50 Methyl-tert-butyl ether <2.7 ug/L 07/28/23 17:06 1634-04-425.0 2.7 50 Naphthalene 371 ug/L 07/28/23 17:06 91-20-3100 5.0 50 n-Propylbenzene 498 ug/L 07/28/23 17:06 103-65-125.0 5.2 50 Styrene <6.8 ug/L 07/28/23 17:06 100-42-525.0 6.8 50 1,1,1,2-Tetrachloroethane <4.6 ug/L 07/28/23 17:06 630-20-625.0 4.6 50 1,1,2,2-Tetrachloroethane <3.7 ug/L 07/28/23 17:06 79-34-525.0 3.7 50 Tetrachloroethene <4.3 ug/L 07/28/23 17:06 127-18-425.0 4.3 50 Toluene 7480 ug/L 07/28/23 17:06 108-88-325.0 4.5 50 1,2,3-Trichlorobenzene <6.0 ug/L 07/28/23 17:06 87-61-6100 6.0 50 1,2,4-Trichlorobenzene <7.8 ug/L 07/28/23 17:06 120-82-1100 7.8 50 1,1,1-Trichloroethane <5.4 ug/L 07/28/23 17:06 71-55-625.0 5.4 50 1,1,2-Trichloroethane <4.8 ug/L 07/28/23 17:06 79-00-525.0 4.8 50 Trichloroethene <8.6 ug/L 07/28/23 17:06 79-01-625.0 8.6 50 Trichlorofluoromethane <7.2 ug/L 07/28/23 17:06 75-69-450.0 7.2 50 1,2,3-Trichloropropane <8.6 ug/L 07/28/23 17:06 96-18-425.0 8.6 50 1,2,4-Trimethylbenzene 3210 ug/L 07/28/23 17:06 95-63-625.0 1.5 50 1,3,5-Trimethylbenzene 858 ug/L 07/28/23 17:06 108-67-825.0 3.6 50 Vinyl chloride <7.4 ug/L 07/28/23 17:06 75-01-450.0 7.4 50 m&p-Xylene 12300 ug/L 07/28/23 17:06 179601-23-150.0 4.7 50 o-Xylene 4930 ug/L 07/28/23 17:06 95-47-625.0 7.2 50 Surrogates 1,2-Dichloroethane-d4 (S)97 %07/28/23 17:06 17060-07-070-130 50 4-Bromofluorobenzene (S)95 %07/28/23 17:06 460-00-470-130 50 Toluene-d8 (S)95 %07/28/23 17:06 2037-26-570-130 50 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: MW-5 Lab ID: 92679292003 Collected: 07/25/23 11:35 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7.4 ug/L 07/28/23 15:53 75-85-4100 7.4 1 tert-Amylmethyl ether <0.12 ug/L 07/28/23 15:53 994-05-810.0 0.12 1 Benzene <0.079 ug/L 07/28/23 15:53 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 07/28/23 15:53 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 07/28/23 15:53 74-97-50.50 0.094 1 Bromodichloromethane <0.17 ug/L 07/28/23 15:53 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 07/28/23 15:53 75-25-20.50 0.20 1 Bromomethane <0.22 ug/L 07/28/23 15:53 74-83-95.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 07/28/23 15:53 75-65-050.0 4.1 1 n-Butylbenzene <0.066 ug/L 07/28/23 15:53 104-51-80.50 0.066 1 sec-Butylbenzene <0.085 ug/L 07/28/23 15:53 135-98-80.50 0.085 1 tert-Butylbenzene <0.086 ug/L 07/28/23 15:53 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 07/28/23 15:53 762-75-450.0 0.30 1 Carbon tetrachloride <0.17 ug/L 07/28/23 15:53 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 07/28/23 15:53 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 07/28/23 15:53 75-00-31.0 0.17 1 Chloroform <0.069 ug/L 07/28/23 15:53 67-66-30.50 0.069 1 Chloromethane 0.18J ug/L 07/28/23 15:53 74-87-31.0 0.18 1 2-Chlorotoluene <0.13 ug/L 07/28/23 15:53 95-49-80.50 0.13 1 4-Chlorotoluene <0.096 ug/L 07/28/23 15:53 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 07/28/23 15:53 96-12-81.0 0.18 1 Dibromochloromethane <0.15 ug/L 07/28/23 15:53 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)<0.15 ug/L 07/28/23 15:53 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 07/28/23 15:53 74-95-30.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 07/28/23 15:53 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 07/28/23 15:53 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 07/28/23 15:53 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 07/28/23 15:53 75-71-80.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 07/28/23 15:53 75-34-30.50 0.056 1 1,2-Dichloroethane <0.11 ug/L 07/28/23 15:53 107-06-20.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 07/28/23 15:53 75-35-40.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 07/28/23 15:53 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 07/28/23 15:53 156-60-50.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 07/28/23 15:53 78-87-50.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 07/28/23 15:53 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 07/28/23 15:53 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 07/28/23 15:53 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 07/28/23 15:53 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 07/28/23 15:53 10061-02-60.50 0.13 1 Diisopropyl ether <0.072 ug/L 07/28/23 15:53 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 07/28/23 15:53 64-17-5200 5.0 1 Ethylbenzene <0.081 ug/L 07/28/23 15:53 100-41-40.50 0.081 1 Ethyl-tert-butyl ether <0.11 ug/L 07/28/23 15:53 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 07/28/23 15:53 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)<0.11 ug/L 07/28/23 15:53 98-82-80.50 0.11 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: MW-5 Lab ID: 92679292003 Collected: 07/25/23 11:35 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <1.9 ug/L 07/28/23 15:53 75-09-22.0 1.9 1 Methyl-tert-butyl ether <0.053 ug/L 07/28/23 15:53 1634-04-40.50 0.053 1 Naphthalene <0.10 ug/L 07/28/23 15:53 91-20-32.0 0.10 1 n-Propylbenzene <0.10 ug/L 07/28/23 15:53 103-65-10.50 0.10 1 Styrene <0.14 ug/L 07/28/23 15:53 100-42-50.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 07/28/23 15:53 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 07/28/23 15:53 79-34-50.50 0.074 1 Tetrachloroethene <0.086 ug/L 07/28/23 15:53 127-18-40.50 0.086 1 Toluene <0.090 ug/L 07/28/23 15:53 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene <0.12 ug/L 07/28/23 15:53 87-61-62.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 07/28/23 15:53 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 07/28/23 15:53 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 07/28/23 15:53 79-00-50.50 0.096 1 Trichloroethene <0.17 ug/L 07/28/23 15:53 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 07/28/23 15:53 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 07/28/23 15:53 96-18-40.50 0.17 1 1,2,4-Trimethylbenzene <0.031 ug/L 07/28/23 15:53 95-63-60.50 0.031 1 1,3,5-Trimethylbenzene <0.071 ug/L 07/28/23 15:53 108-67-80.50 0.071 1 Vinyl chloride <0.15 ug/L 07/28/23 15:53 75-01-41.0 0.15 1 m&p-Xylene <0.094 ug/L 07/28/23 15:53 179601-23-11.0 0.094 1 o-Xylene <0.14 ug/L 07/28/23 15:53 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)98 %07/28/23 15:53 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %07/28/23 15:53 460-00-470-130 1 Toluene-d8 (S)96 %07/28/23 15:53 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: MW-6 Lab ID: 92679292004 Collected: 07/25/23 09:05 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <149 ug/L 07/28/23 16:30 75-85-42000 149 20 tert-Amylmethyl ether <2.5 ug/L 07/28/23 16:30 994-05-8200 2.5 20 Benzene 27.9 ug/L 07/28/23 16:30 71-43-210.0 1.6 20 Bromobenzene <2.7 ug/L 07/28/23 16:30 108-86-110.0 2.7 20 Bromochloromethane <1.9 ug/L 07/28/23 16:30 74-97-510.0 1.9 20 Bromodichloromethane <3.4 ug/L 07/28/23 16:30 75-27-410.0 3.4 20 Bromoform <3.9 ug/L 07/28/23 16:30 75-25-210.0 3.9 20 Bromomethane <4.4 ug/L 07/28/23 16:30 74-83-9100 4.4 20 tert-Butyl Alcohol <81.8 ug/L 07/28/23 16:30 75-65-01000 81.8 20 n-Butylbenzene <1.3 ug/L 07/28/23 16:30 104-51-810.0 1.3 20 sec-Butylbenzene <1.7 ug/L 07/28/23 16:30 135-98-810.0 1.7 20 tert-Butylbenzene <1.7 ug/L 07/28/23 16:30 98-06-610.0 1.7 20 tert-Butyl Formate <6.0 ug/L 07/28/23 16:30 762-75-41000 6.0 20 Carbon tetrachloride <3.4 ug/L 07/28/23 16:30 56-23-510.0 3.4 20 Chlorobenzene <1.7 ug/L 07/28/23 16:30 108-90-710.0 1.7 20 Chloroethane <3.5 ug/L 07/28/23 16:30 75-00-320.0 3.5 20 Chloroform <1.4 ug/L 07/28/23 16:30 67-66-310.0 1.4 20 Chloromethane <3.5 ug/L 07/28/23 16:30 74-87-320.0 3.5 20 2-Chlorotoluene <2.6 ug/L 07/28/23 16:30 95-49-810.0 2.6 20 4-Chlorotoluene <1.9 ug/L 07/28/23 16:30 106-43-410.0 1.9 20 1,2-Dibromo-3-chloropropane <3.6 ug/L 07/28/23 16:30 96-12-820.0 3.6 20 Dibromochloromethane <3.0 ug/L 07/28/23 16:30 124-48-110.0 3.0 20 1,2-Dibromoethane (EDB)<2.9 ug/L 07/28/23 16:30 106-93-410.0 2.9 20 Dibromomethane <3.7 ug/L 07/28/23 16:30 74-95-310.0 3.7 20 1,2-Dichlorobenzene <1.9 ug/L 07/28/23 16:30 95-50-110.0 1.9 20 1,3-Dichlorobenzene <2.0 ug/L 07/28/23 16:30 541-73-110.0 2.0 20 1,4-Dichlorobenzene <1.8 ug/L 07/28/23 16:30 106-46-710.0 1.8 20 Dichlorodifluoromethane <2.5 ug/L 07/28/23 16:30 75-71-810.0 2.5 20 1,1-Dichloroethane <1.1 ug/L 07/28/23 16:30 75-34-310.0 1.1 20 1,2-Dichloroethane <2.1 ug/L 07/28/23 16:30 107-06-210.0 2.1 20 1,1-Dichloroethene <1.6 ug/L 07/28/23 16:30 75-35-410.0 1.6 20 cis-1,2-Dichloroethene <2.2 ug/L 07/28/23 16:30 156-59-210.0 2.2 20 trans-1,2-Dichloroethene <2.0 ug/L 07/28/23 16:30 156-60-510.0 2.0 20 1,2-Dichloropropane <2.7 ug/L 07/28/23 16:30 78-87-510.0 2.7 20 1,3-Dichloropropane <1.7 ug/L 07/28/23 16:30 142-28-910.0 1.7 20 2,2-Dichloropropane <2.4 ug/L 07/28/23 16:30 594-20-710.0 2.4 20 1,1-Dichloropropene <1.3 ug/L 07/28/23 16:30 563-58-610.0 1.3 20 cis-1,3-Dichloropropene <1.8 ug/L 07/28/23 16:30 10061-01-510.0 1.8 20 trans-1,3-Dichloropropene <2.6 ug/L 07/28/23 16:30 10061-02-610.0 2.6 20 Diisopropyl ether <1.4 ug/L 07/28/23 16:30 108-20-310.0 1.4 20 Ethanol <101 ug/L 07/28/23 16:30 64-17-54000 101 20 Ethylbenzene 947 ug/L 07/28/23 16:30 100-41-410.0 1.6 20 Ethyl-tert-butyl ether <2.2 ug/L 07/28/23 16:30 637-92-3200 2.2 20 Hexachloro-1,3-butadiene <7.0 ug/L 07/28/23 16:30 87-68-340.0 7.0 20 Isopropylbenzene (Cumene)140 ug/L 07/28/23 16:30 98-82-810.0 2.1 20 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: MW-6 Lab ID: 92679292004 Collected: 07/25/23 09:05 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <37.8 ug/L 07/28/23 16:30 75-09-240.0 37.8 20 Methyl-tert-butyl ether <1.1 ug/L 07/28/23 16:30 1634-04-410.0 1.1 20 Naphthalene 104 ug/L 07/28/23 16:30 91-20-340.0 2.0 20 n-Propylbenzene 444 ug/L 07/28/23 16:30 103-65-110.0 2.1 20 Styrene <2.7 ug/L 07/28/23 16:30 100-42-510.0 2.7 20 1,1,1,2-Tetrachloroethane <1.8 ug/L 07/28/23 16:30 630-20-610.0 1.8 20 1,1,2,2-Tetrachloroethane <1.5 ug/L 07/28/23 16:30 79-34-510.0 1.5 20 Tetrachloroethene <1.7 ug/L 07/28/23 16:30 127-18-410.0 1.7 20 Toluene 137 ug/L 07/28/23 16:30 108-88-310.0 1.8 20 1,2,3-Trichlorobenzene <2.4 ug/L 07/28/23 16:30 87-61-640.0 2.4 20 1,2,4-Trichlorobenzene <3.1 ug/L 07/28/23 16:30 120-82-140.0 3.1 20 1,1,1-Trichloroethane <2.1 ug/L 07/28/23 16:30 71-55-610.0 2.1 20 1,1,2-Trichloroethane <1.9 ug/L 07/28/23 16:30 79-00-510.0 1.9 20 Trichloroethene <3.4 ug/L 07/28/23 16:30 79-01-610.0 3.4 20 Trichlorofluoromethane <2.9 ug/L 07/28/23 16:30 75-69-420.0 2.9 20 1,2,3-Trichloropropane <3.5 ug/L 07/28/23 16:30 96-18-410.0 3.5 20 1,2,4-Trimethylbenzene 2570 ug/L 07/28/23 16:30 95-63-610.0 0.61 20 1,3,5-Trimethylbenzene 784 ug/L 07/28/23 16:30 108-67-810.0 1.4 20 Vinyl chloride <3.0 ug/L 07/28/23 16:30 75-01-420.0 3.0 20 m&p-Xylene 2050 ug/L 07/28/23 16:30 179601-23-120.0 1.9 20 o-Xylene 860 ug/L 07/28/23 16:30 95-47-610.0 2.9 20 Surrogates 1,2-Dichloroethane-d4 (S)98 %07/28/23 16:30 17060-07-070-130 20 4-Bromofluorobenzene (S)95 %07/28/23 16:30 460-00-470-130 20 Toluene-d8 (S)95 %07/28/23 16:30 2037-26-570-130 20 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: DW-1 Lab ID: 92679292005 Collected: 07/25/23 10:19 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7.4 ug/L 07/31/23 15:57 75-85-4100 7.4 1 tert-Amylmethyl ether <0.12 ug/L 07/31/23 15:57 994-05-810.0 0.12 1 Benzene <0.079 ug/L 07/31/23 15:57 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 07/31/23 15:57 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 07/31/23 15:57 74-97-50.50 0.094 1 Bromodichloromethane <0.17 ug/L 07/31/23 15:57 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 07/31/23 15:57 75-25-20.50 0.20 1 Bromomethane <0.22 ug/L 07/31/23 15:57 74-83-95.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 07/31/23 15:57 75-65-050.0 4.1 1 n-Butylbenzene <0.066 ug/L 07/31/23 15:57 104-51-80.50 0.066 1 sec-Butylbenzene <0.085 ug/L 07/31/23 15:57 135-98-80.50 0.085 1 tert-Butylbenzene <0.086 ug/L 07/31/23 15:57 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 07/31/23 15:57 762-75-450.0 0.30 1 Carbon tetrachloride <0.17 ug/L 07/31/23 15:57 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 07/31/23 15:57 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 07/31/23 15:57 75-00-31.0 0.17 1 Chloroform 0.26J ug/L 07/31/23 15:57 67-66-30.50 0.069 1 Chloromethane <0.18 ug/L 07/31/23 15:57 74-87-31.0 0.18 1 2-Chlorotoluene <0.13 ug/L 07/31/23 15:57 95-49-80.50 0.13 1 4-Chlorotoluene <0.096 ug/L 07/31/23 15:57 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 07/31/23 15:57 96-12-81.0 0.18 1 Dibromochloromethane <0.15 ug/L 07/31/23 15:57 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)<0.15 ug/L 07/31/23 15:57 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 07/31/23 15:57 74-95-30.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 07/31/23 15:57 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 07/31/23 15:57 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 07/31/23 15:57 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 07/31/23 15:57 75-71-80.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 07/31/23 15:57 75-34-30.50 0.056 1 1,2-Dichloroethane <0.11 ug/L 07/31/23 15:57 107-06-20.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 07/31/23 15:57 75-35-40.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 07/31/23 15:57 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 07/31/23 15:57 156-60-50.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 07/31/23 15:57 78-87-50.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 07/31/23 15:57 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 07/31/23 15:57 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 07/31/23 15:57 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 07/31/23 15:57 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 07/31/23 15:57 10061-02-60.50 0.13 1 Diisopropyl ether <0.072 ug/L 07/31/23 15:57 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 07/31/23 15:57 64-17-5200 5.0 1 Ethylbenzene <0.081 ug/L 07/31/23 15:57 100-41-40.50 0.081 1 Ethyl-tert-butyl ether <0.11 ug/L 07/31/23 15:57 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 07/31/23 15:57 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)<0.11 ug/L 07/31/23 15:57 98-82-80.50 0.11 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: DW-1 Lab ID: 92679292005 Collected: 07/25/23 10:19 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <1.9 ug/L 07/31/23 15:57 75-09-22.0 1.9 1 Methyl-tert-butyl ether <0.053 ug/L 07/31/23 15:57 1634-04-40.50 0.053 1 Naphthalene <0.10 ug/L 07/31/23 15:57 91-20-32.0 0.10 1 n-Propylbenzene <0.10 ug/L 07/31/23 15:57 103-65-10.50 0.10 1 Styrene <0.14 ug/L 07/31/23 15:57 100-42-50.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 07/31/23 15:57 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 07/31/23 15:57 79-34-50.50 0.074 1 Tetrachloroethene <0.086 ug/L 07/31/23 15:57 127-18-40.50 0.086 1 Toluene <0.090 ug/L 07/31/23 15:57 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene <0.12 ug/L 07/31/23 15:57 87-61-62.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 07/31/23 15:57 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 07/31/23 15:57 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 07/31/23 15:57 79-00-50.50 0.096 1 Trichloroethene <0.17 ug/L 07/31/23 15:57 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 07/31/23 15:57 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 07/31/23 15:57 96-18-40.50 0.17 1 1,2,4-Trimethylbenzene <0.031 ug/L 07/31/23 15:57 95-63-60.50 0.031 1 1,3,5-Trimethylbenzene <0.071 ug/L 07/31/23 15:57 108-67-80.50 0.071 1 Vinyl chloride <0.15 ug/L 07/31/23 15:57 75-01-41.0 0.15 1 m&p-Xylene <0.094 ug/L 07/31/23 15:57 179601-23-11.0 0.094 1 o-Xylene <0.14 ug/L 07/31/23 15:57 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)97 %07/31/23 15:57 17060-07-070-130 1 4-Bromofluorobenzene (S)95 %07/31/23 15:57 460-00-470-130 1 Toluene-d8 (S)94 %07/31/23 15:57 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: WSW-8 Lab ID: 92679292006 Collected: 07/25/23 11:50 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol 50.8J ug/L 07/27/23 17:15 75-85-4100 7.4 1 tert-Amylmethyl ether <0.12 ug/L 07/27/23 17:15 994-05-810.0 0.12 1 Benzene 14.5 ug/L 07/27/23 17:15 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 07/27/23 17:15 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 07/27/23 17:15 74-97-50.50 0.094 1 Bromodichloromethane <0.17 ug/L 07/27/23 17:15 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 07/27/23 17:15 75-25-20.50 0.20 1 Bromomethane <0.22 ug/L 07/27/23 17:15 74-83-9 M15.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 07/27/23 17:15 75-65-050.0 4.1 1 n-Butylbenzene <0.066 ug/L 07/27/23 17:15 104-51-8 M10.50 0.066 1 sec-Butylbenzene <0.085 ug/L 07/27/23 17:15 135-98-8 M10.50 0.085 1 tert-Butylbenzene <0.086 ug/L 07/27/23 17:15 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 07/27/23 17:15 762-75-450.0 0.30 1 Carbon tetrachloride <0.17 ug/L 07/27/23 17:15 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 07/27/23 17:15 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 07/27/23 17:15 75-00-3 M11.0 0.17 1 Chloroform <0.069 ug/L 07/27/23 17:15 67-66-30.50 0.069 1 Chloromethane <0.18 ug/L 07/27/23 17:15 74-87-31.0 0.18 1 2-Chlorotoluene <0.13 ug/L 07/27/23 17:15 95-49-8 M10.50 0.13 1 4-Chlorotoluene <0.096 ug/L 07/27/23 17:15 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 07/27/23 17:15 96-12-81.0 0.18 1 Dibromochloromethane <0.15 ug/L 07/27/23 17:15 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)0.37J ug/L 07/27/23 17:15 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 07/27/23 17:15 74-95-3 M10.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 07/27/23 17:15 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 07/27/23 17:15 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 07/27/23 17:15 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 07/27/23 17:15 75-71-8 M10.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 07/27/23 17:15 75-34-30.50 0.056 1 1,2-Dichloroethane 1.0 ug/L 07/27/23 17:15 107-06-2 M10.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 07/27/23 17:15 75-35-4 M10.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 07/27/23 17:15 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 07/27/23 17:15 156-60-5 M10.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 07/27/23 17:15 78-87-5 M10.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 07/27/23 17:15 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 07/27/23 17:15 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 07/27/23 17:15 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 07/27/23 17:15 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 07/27/23 17:15 10061-02-6 M10.50 0.13 1 Diisopropyl ether <0.072 ug/L 07/27/23 17:15 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 07/27/23 17:15 64-17-5 M1200 5.0 1 Ethylbenzene 369 ug/L 07/28/23 10:56 100-41-4 M15.0 0.81 10 Ethyl-tert-butyl ether <0.11 ug/L 07/27/23 17:15 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 07/27/23 17:15 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)35.3 ug/L 07/27/23 17:15 98-82-80.50 0.11 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: WSW-8 Lab ID: 92679292006 Collected: 07/25/23 11:50 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <1.9 ug/L 07/27/23 17:15 75-09-2 M12.0 1.9 1 Methyl-tert-butyl ether <0.053 ug/L 07/27/23 17:15 1634-04-40.50 0.053 1 Naphthalene 40.6 ug/L 07/27/23 17:15 91-20-32.0 0.10 1 n-Propylbenzene 81.2 ug/L 07/27/23 17:15 103-65-10.50 0.10 1 Styrene <0.14 ug/L 07/27/23 17:15 100-42-50.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 07/27/23 17:15 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 07/27/23 17:15 79-34-50.50 0.074 1 Tetrachloroethene <0.086 ug/L 07/27/23 17:15 127-18-40.50 0.086 1 Toluene 55.2 ug/L 07/27/23 17:15 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene <0.12 ug/L 07/27/23 17:15 87-61-6 M12.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 07/27/23 17:15 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 07/27/23 17:15 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 07/27/23 17:15 79-00-5 M10.50 0.096 1 Trichloroethene <0.17 ug/L 07/27/23 17:15 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 07/27/23 17:15 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 07/27/23 17:15 96-18-4 M10.50 0.17 1 1,2,4-Trimethylbenzene 770 ug/L 07/28/23 10:56 95-63-6 M15.0 0.31 10 1,3,5-Trimethylbenzene <0.71 ug/L 07/28/23 10:56 108-67-8 M15.0 0.71 10 Vinyl chloride <0.15 ug/L 07/27/23 17:15 75-01-41.0 0.15 1 m&p-Xylene 941 ug/L 07/28/23 10:56 179601-23-1 M110.0 0.94 10 o-Xylene 775 ug/L 07/28/23 10:56 95-47-65.0 1.4 10 Surrogates 1,2-Dichloroethane-d4 (S)95 %07/27/23 17:15 17060-07-070-130 1 4-Bromofluorobenzene (S)97 %07/27/23 17:15 460-00-470-130 1 Toluene-d8 (S)104 %07/27/23 17:15 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: WSW-9 Lab ID: 92679292007 Collected: 07/25/23 12:05 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7.4 ug/L 07/28/23 13:44 75-85-4100 7.4 1 tert-Amylmethyl ether <0.12 ug/L 07/28/23 13:44 994-05-810.0 0.12 1 Benzene <0.079 ug/L 07/28/23 13:44 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 07/28/23 13:44 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 07/28/23 13:44 74-97-50.50 0.094 1 Bromodichloromethane 8.6 ug/L 07/28/23 13:44 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 07/28/23 13:44 75-25-20.50 0.20 1 Bromomethane 0.42J ug/L 07/28/23 13:44 74-83-95.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 07/28/23 13:44 75-65-050.0 4.1 1 n-Butylbenzene <0.066 ug/L 07/28/23 13:44 104-51-80.50 0.066 1 sec-Butylbenzene <0.085 ug/L 07/28/23 13:44 135-98-80.50 0.085 1 tert-Butylbenzene <0.086 ug/L 07/28/23 13:44 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 07/28/23 13:44 762-75-450.0 0.30 1 Carbon tetrachloride <0.17 ug/L 07/28/23 13:44 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 07/28/23 13:44 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 07/28/23 13:44 75-00-31.0 0.17 1 Chloroform 40.9 ug/L 07/28/23 13:44 67-66-3 M10.50 0.069 1 Chloromethane 0.18J ug/L 07/28/23 13:44 74-87-3 M11.0 0.18 1 2-Chlorotoluene <0.13 ug/L 07/28/23 13:44 95-49-80.50 0.13 1 4-Chlorotoluene <0.096 ug/L 07/28/23 13:44 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 07/28/23 13:44 96-12-81.0 0.18 1 Dibromochloromethane 2.2 ug/L 07/28/23 13:44 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)<0.15 ug/L 07/28/23 13:44 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 07/28/23 13:44 74-95-30.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 07/28/23 13:44 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 07/28/23 13:44 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 07/28/23 13:44 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 07/28/23 13:44 75-71-80.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 07/28/23 13:44 75-34-30.50 0.056 1 1,2-Dichloroethane <0.11 ug/L 07/28/23 13:44 107-06-20.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 07/28/23 13:44 75-35-40.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 07/28/23 13:44 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 07/28/23 13:44 156-60-50.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 07/28/23 13:44 78-87-50.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 07/28/23 13:44 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 07/28/23 13:44 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 07/28/23 13:44 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 07/28/23 13:44 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 07/28/23 13:44 10061-02-60.50 0.13 1 Diisopropyl ether <0.072 ug/L 07/28/23 13:44 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 07/28/23 13:44 64-17-5200 5.0 1 Ethylbenzene <0.081 ug/L 07/28/23 13:44 100-41-40.50 0.081 1 Ethyl-tert-butyl ether <0.11 ug/L 07/28/23 13:44 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 07/28/23 13:44 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)<0.11 ug/L 07/28/23 13:44 98-82-80.50 0.11 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 17 of 38 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Sample: WSW-9 Lab ID: 92679292007 Collected: 07/25/23 12:05 Received: 07/26/23 06:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Methylene Chloride <1.9 ug/L 07/28/23 13:44 75-09-22.0 1.9 1 Methyl-tert-butyl ether <0.053 ug/L 07/28/23 13:44 1634-04-40.50 0.053 1 Naphthalene <0.10 ug/L 07/28/23 13:44 91-20-3 R12.0 0.10 1 n-Propylbenzene <0.10 ug/L 07/28/23 13:44 103-65-10.50 0.10 1 Styrene <0.14 ug/L 07/28/23 13:44 100-42-5 M1,R10.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 07/28/23 13:44 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 07/28/23 13:44 79-34-50.50 0.074 1 Tetrachloroethene <0.086 ug/L 07/28/23 13:44 127-18-40.50 0.086 1 Toluene <0.090 ug/L 07/28/23 13:44 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene <0.12 ug/L 07/28/23 13:44 87-61-62.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 07/28/23 13:44 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 07/28/23 13:44 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 07/28/23 13:44 79-00-50.50 0.096 1 Trichloroethene <0.17 ug/L 07/28/23 13:44 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 07/28/23 13:44 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 07/28/23 13:44 96-18-40.50 0.17 1 1,2,4-Trimethylbenzene <0.031 ug/L 07/28/23 13:44 95-63-6 M1,R10.50 0.031 1 1,3,5-Trimethylbenzene <0.071 ug/L 07/28/23 13:44 108-67-8 M10.50 0.071 1 Vinyl chloride <0.15 ug/L 07/28/23 13:44 75-01-41.0 0.15 1 m&p-Xylene <0.094 ug/L 07/28/23 13:44 179601-23-1 R11.0 0.094 1 o-Xylene <0.14 ug/L 07/28/23 13:44 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)100 %07/28/23 13:44 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %07/28/23 13:44 460-00-470-130 1 Toluene-d8 (S)95 %07/28/23 13:44 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 18 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 789623 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92679292001, 92679292006 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4092585 Associated Lab Samples:92679292001, 92679292006 Matrix: Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 07/27/23 15:280.091 1,1,1-Trichloroethane ug/L <0.11 0.50 07/27/23 15:280.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 07/27/23 15:280.074 1,1,2-Trichloroethane ug/L <0.096 0.50 07/27/23 15:280.096 1,1-Dichloroethane ug/L <0.056 0.50 07/27/23 15:280.056 1,1-Dichloroethene ug/L <0.079 0.50 07/27/23 15:280.079 1,1-Dichloropropene ug/L <0.066 0.50 07/27/23 15:280.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 07/27/23 15:280.12 1,2,3-Trichloropropane ug/L <0.17 0.50 07/27/23 15:280.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 07/27/23 15:280.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 07/27/23 15:280.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 07/27/23 15:280.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 07/27/23 15:280.15 1,2-Dichlorobenzene ug/L <0.094 0.50 07/27/23 15:280.094 1,2-Dichloroethane ug/L <0.11 0.50 07/27/23 15:280.11 1,2-Dichloropropane ug/L <0.14 0.50 07/27/23 15:280.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 07/27/23 15:280.071 1,3-Dichlorobenzene ug/L <0.098 0.50 07/27/23 15:280.098 1,3-Dichloropropane ug/L <0.085 0.50 07/27/23 15:280.085 1,4-Dichlorobenzene ug/L <0.090 0.50 07/27/23 15:280.090 2,2-Dichloropropane ug/L <0.12 0.50 07/27/23 15:280.12 2-Chlorotoluene ug/L <0.13 0.50 07/27/23 15:280.13 4-Chlorotoluene ug/L <0.096 0.50 07/27/23 15:280.096 Benzene ug/L <0.079 0.50 07/27/23 15:280.079 Bromobenzene ug/L <0.14 0.50 07/27/23 15:280.14 Bromochloromethane ug/L <0.094 0.50 07/27/23 15:280.094 Bromodichloromethane ug/L <0.17 0.50 07/27/23 15:280.17 Bromoform ug/L <0.20 0.50 07/27/23 15:280.20 Bromomethane ug/L <0.22 5.0 07/27/23 15:280.22 Carbon tetrachloride ug/L <0.17 0.50 07/27/23 15:280.17 Chlorobenzene ug/L <0.085 0.50 07/27/23 15:280.085 Chloroethane ug/L <0.17 1.0 07/27/23 15:280.17 Chloroform ug/L <0.069 0.50 07/27/23 15:280.069 Chloromethane ug/L <0.18 1.0 07/27/23 15:280.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 07/27/23 15:280.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 07/27/23 15:280.090 Dibromochloromethane ug/L <0.15 0.50 07/27/23 15:280.15 Dibromomethane ug/L <0.19 0.50 07/27/23 15:280.19 Dichlorodifluoromethane ug/L <0.12 0.50 07/27/23 15:280.12 Diisopropyl ether ug/L <0.072 0.50 07/27/23 15:280.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 19 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4092585 Associated Lab Samples:92679292001, 92679292006 Matrix: Water AnalyzedMDL Ethanol ug/L <5.0 200 07/27/23 15:285.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 07/27/23 15:280.11 Ethylbenzene ug/L <0.081 0.50 07/27/23 15:280.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 07/27/23 15:280.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 07/27/23 15:280.11 m&p-Xylene ug/L <0.094 1.0 07/27/23 15:280.094 Methyl-tert-butyl ether ug/L <0.053 0.50 07/27/23 15:280.053 Methylene Chloride ug/L <1.9 2.0 07/27/23 15:281.9 n-Butylbenzene ug/L <0.066 0.50 07/27/23 15:280.066 n-Propylbenzene ug/L <0.10 0.50 07/27/23 15:280.10 Naphthalene ug/L <0.10 2.0 07/27/23 15:280.10 o-Xylene ug/L <0.14 0.50 07/27/23 15:280.14 sec-Butylbenzene ug/L <0.085 0.50 07/27/23 15:280.085 Styrene ug/L <0.14 0.50 07/27/23 15:280.14 tert-Amyl Alcohol ug/L <7.4 100 07/27/23 15:287.4 tert-Amylmethyl ether ug/L <0.12 10.0 07/27/23 15:280.12 tert-Butyl Alcohol ug/L <4.1 50.0 07/27/23 15:284.1 tert-Butyl Formate ug/L <0.30 50.0 07/27/23 15:280.30 tert-Butylbenzene ug/L <0.086 0.50 07/27/23 15:280.086 Tetrachloroethene ug/L <0.086 0.50 07/27/23 15:280.086 Toluene ug/L <0.090 0.50 07/27/23 15:280.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 07/27/23 15:280.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 07/27/23 15:280.13 Trichloroethene ug/L <0.17 0.50 07/27/23 15:280.17 Trichlorofluoromethane ug/L <0.14 1.0 07/27/23 15:280.14 Vinyl chloride ug/L <0.15 1.0 07/27/23 15:280.15 1,2-Dichloroethane-d4 (S)%102 70-130 07/27/23 15:28 4-Bromofluorobenzene (S)%100 70-130 07/27/23 15:28 Toluene-d8 (S)%101 70-130 07/27/23 15:28 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4092586LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 19.620 98 60-140 1,1,1-Trichloroethane ug/L 20.220 101 60-140 1,1,2,2-Tetrachloroethane ug/L 20.120 100 60-140 1,1,2-Trichloroethane ug/L 19.920 99 60-140 1,1-Dichloroethane ug/L 20.520 103 60-140 1,1-Dichloroethene ug/L 21.320 106 60-140 1,1-Dichloropropene ug/L 21.220 106 60-140 1,2,3-Trichlorobenzene ug/L 21.120 105 60-140 1,2,3-Trichloropropane ug/L 19.020 95 60-140 1,2,4-Trichlorobenzene ug/L 20.820 104 60-140 1,2,4-Trimethylbenzene ug/L 19.320 97 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 20 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4092586LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 19.220 96 60-140 1,2-Dibromoethane (EDB)ug/L 19.820 99 60-140 1,2-Dichlorobenzene ug/L 19.120 95 60-140 1,2-Dichloroethane ug/L 20.320 102 60-140 1,2-Dichloropropane ug/L 20.320 102 60-140 1,3,5-Trimethylbenzene ug/L 19.420 97 60-140 1,3-Dichlorobenzene ug/L 18.720 94 60-140 1,3-Dichloropropane ug/L 18.820 94 60-140 1,4-Dichlorobenzene ug/L 18.420 92 60-140 2,2-Dichloropropane ug/L 19.720 98 60-140 2-Chlorotoluene ug/L 19.120 95 60-140 4-Chlorotoluene ug/L 19.020 95 60-140 Benzene ug/L 19.120 96 60-140 Bromobenzene ug/L 18.520 93 60-140 Bromochloromethane ug/L 20.620 103 60-140 Bromodichloromethane ug/L 19.220 96 60-140 Bromoform ug/L 18.620 93 60-140 Bromomethane ug/L 19.420 97 60-140 Carbon tetrachloride ug/L 19.220 96 60-140 Chlorobenzene ug/L 19.020 95 60-140 Chloroethane ug/L 21.620 108 60-140 Chloroform ug/L 19.920 99 60-140 Chloromethane ug/L 21.820 109 60-140 cis-1,2-Dichloroethene ug/L 20.520 103 60-140 cis-1,3-Dichloropropene ug/L 19.220 96 60-140 Dibromochloromethane ug/L 18.820 94 60-140 Dibromomethane ug/L 19.520 97 60-140 Dichlorodifluoromethane ug/L 25.420 127 60-140 Diisopropyl ether ug/L 21.020 105 60-140 Ethanol ug/L 891800 111 60-140 Ethyl-tert-butyl ether ug/L 39.240 98 60-140 Ethylbenzene ug/L 18.820 94 60-140 Hexachloro-1,3-butadiene ug/L 21.520 107 60-140 Isopropylbenzene (Cumene)ug/L 19.420 97 60-140 m&p-Xylene ug/L 38.040 95 60-140 Methyl-tert-butyl ether ug/L 19.320 96 60-140 Methylene Chloride ug/L 21.920 110 60-140 n-Butylbenzene ug/L 19.420 97 60-140 n-Propylbenzene ug/L 18.720 93 60-140 Naphthalene ug/L 21.420 107 60-140 o-Xylene ug/L 18.920 95 60-140 sec-Butylbenzene ug/L 19.020 95 60-140 Styrene ug/L 19.220 96 60-140 tert-Amyl Alcohol ug/L 419400 105 60-140 tert-Amylmethyl ether ug/L 39.840 99 60-140 tert-Butyl Alcohol ug/L 205200 103 60-140 tert-Butyl Formate ug/L 160160 100 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 21 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4092586LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 15.620 78 60-140 Tetrachloroethene ug/L 18.320 91 60-140 Toluene ug/L 18.420 92 60-140 trans-1,2-Dichloroethene ug/L 21.220 106 60-140 trans-1,3-Dichloropropene ug/L 19.820 99 60-140 Trichloroethene ug/L 19.620 98 60-140 Trichlorofluoromethane ug/L 19.820 99 60-140 Vinyl chloride ug/L 18.420 92 60-140 1,2-Dichloroethane-d4 (S)%105 70-130 4-Bromofluorobenzene (S)%101 70-130 Toluene-d8 (S)%100 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4092587MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92679292006 4092588 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 25 128 60-140122 5 3025<0.091 32.1 30.4 1,1,1-Trichloroethane ug/L 25 132 60-140125 5 3025<0.11 33.0 31.2 1,1,2,2-Tetrachloroethane ug/L 25 136 60-140137 0 3025<0.074 34.0 34.2 1,1,2-Trichloroethane ug/L M12512160-140155 25 3025<0.096 30.1 38.8 1,1-Dichloroethane ug/L 25 137 60-140139 1 3025<0.056 34.4 34.8 1,1-Dichloroethene ug/L M12515760-140142 10 3025<0.079 39.2 35.5 1,1-Dichloropropene ug/L 25 134 60-140130 3 3025<0.066 33.6 32.5 1,2,3-Trichlorobenzene ug/L M12513560-140146 8 3025<0.12 33.9 36.6 1,2,3-Trichloropropane ug/L M12516660-140158 5 3025<0.17 41.4 39.4 1,2,4-Trichlorobenzene ug/L 25 131 60-140138 5 3025<0.16 32.7 34.4 1,2,4-Trimethylbenzene ug/L M12517360-140320 4 3025770813 850 1,2-Dibromo-3- chloropropane ug/L 25 135 60-140137 2 3025<0.18 33.8 34.3 1,2-Dibromoethane (EDB) ug/L 25 130 60-140126 4 30250.37J 33.0 31.8 1,2-Dichlorobenzene ug/L 25 136 60-140137 1 3025<0.094 34.0 34.2 1,2-Dichloroethane ug/L M12514160-140137 3 30251.0 36.3 35.1 1,2-Dichloropropane ug/L M12514160-140140 0 3025<0.14 35.1 35.1 1,3,5-Trimethylbenzene ug/L M125107060-1401100 3 3025<0.71 267 274 1,3-Dichlorobenzene ug/L 25 133 60-140136 2 3025<0.098 33.2 33.9 1,3-Dichloropropane ug/L 25 127 60-140124 2 3025<0.085 31.8 31.0 1,4-Dichlorobenzene ug/L 25 131 60-140136 4 3025<0.090 32.9 34.1 2,2-Dichloropropane ug/L 25 129 60-140133 3 3025<0.12 32.1 33.2 2-Chlorotoluene ug/L M12515060-140146 3 3025<0.13 37.4 36.4 4-Chlorotoluene ug/L 25 124 60-140131 5 3025<0.096 31.1 32.7 Benzene ug/L 25 95 60-140111 10 302514.5 38.2 42.4 Bromobenzene ug/L 25 127 60-140138 8 3025<0.14 31.8 34.6 Bromochloromethane ug/L 25 139 60-140140 1 3025<0.094 34.8 35.0 Bromodichloromethane ug/L 25 119 60-140134 12 3025<0.17 29.7 33.4 Bromoform ug/L 25 115 60-140111 4 3025<0.20 28.6 27.6 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 22 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4092587MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92679292006 4092588 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L M12518460-140167 3025<0.22 46.1J 41.9J Carbon tetrachloride ug/L 25 111 60-140122 9 3025<0.17 27.9 30.6 Chlorobenzene ug/L 25 137 60-140133 3 3025<0.085 34.1 33.3 Chloroethane ug/L M12514960-140144 3 3025<0.17 37.2 36.1 Chloroform ug/L 25 135 60-140133 2 3025<0.069 33.8 33.2 Chloromethane ug/L 25 137 60-140139 1 3025<0.18 34.2 34.6 cis-1,2-Dichloroethene ug/L 25 136 60-140140 3 3025<0.11 34.1 35.0 cis-1,3-Dichloropropene ug/L 25 116 60-140136 15 3025<0.090 29.0 33.9 Dibromochloromethane ug/L 25 117 60-140120 2 3025<0.15 29.2 29.9 Dibromomethane ug/L M12514560-140139 4 3025<0.19 36.3 34.8 Dichlorodifluoromethane ug/L M12514060-140143 2 3025<0.12 35.0 35.7 Diisopropyl ether ug/L 25 139 60-140139 1 3025<0.072 34.7 34.9 Ethanol ug/L M1100017660-140159 301000<5.0 1760J 1590J Ethyl-tert-butyl ether ug/L 50 131 60-140131 3050<0.11 65.3J 65.3J Ethylbenzene ug/L M12514160-140120 1 3025369405 399 Hexachloro-1,3-butadiene ug/L 25 135 60-140133 2 3025<0.35 33.7 33.1 Isopropylbenzene (Cumene)ug/L 25 112 60-140113 0 302535.3 63.3 63.6 m&p-Xylene ug/L M15014060-140154 1 30509411010 1020 Methyl-tert-butyl ether ug/L 25 129 60-140127 2 3025<0.053 32.2 31.7 Methylene Chloride ug/L M12515660-140155 1 3025<1.9 39.1 38.7 n-Butylbenzene ug/L M12519560-140201 3 3025<0.066 48.8 50.3 n-Propylbenzene ug/L 25 60 60-14078 4 302581.2 96.2 101 Naphthalene ug/L 25 105 60-140123 7 302540.6 66.8 71.4 o-Xylene ug/L 25 93 60-14079 0 3025775798 795 sec-Butylbenzene ug/L M12513760-140144 5 3025<0.085 34.1 36.0 Styrene ug/L 25 139 60-140138 1 3025<0.14 34.8 34.5 tert-Amyl Alcohol ug/L 500 113 60-140128 3050050.8J 618J 689J tert-Amylmethyl ether ug/L 50 119 60-140138 3050<0.12 59.5J 69.1J tert-Butyl Alcohol ug/L 250 132 60-140131 30250<4.1 329J 327J tert-Butyl Formate ug/L 200 101 60-14098 30200<0.30 202J 195J tert-Butylbenzene ug/L 25 104 60-140108 4 3025<0.086 26.1 27.1 Tetrachloroethene ug/L 25 124 60-140140 12 3025<0.086 31.0 35.1 Toluene ug/L 25 62 60-140110 16 302555.2 70.8 82.7 trans-1,2-Dichloroethene ug/L M12513960-140141 1 3025<0.10 34.8 35.3 trans-1,3-Dichloropropene ug/L M12511060-140141 25 3025<0.13 27.5 35.4 Trichloroethene ug/L 25 127 60-140127 0 3025<0.17 31.8 31.9 Trichlorofluoromethane ug/L 25 130 60-140131 1 3025<0.14 32.5 32.6 Vinyl chloride ug/L 25 117 60-140119 2 3025<0.15 29.2 29.7 1,2-Dichloroethane-d4 (S) %100 70-13098 4-Bromofluorobenzene (S) %100 70-13098 Toluene-d8 (S)%98 70-130113 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 23 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 789971 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92679292002, 92679292003, 92679292004, 92679292007 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4094183 Associated Lab Samples:92679292002, 92679292003, 92679292004, 92679292007 Matrix: Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 07/28/23 13:260.091 1,1,1-Trichloroethane ug/L <0.11 0.50 07/28/23 13:260.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 07/28/23 13:260.074 1,1,2-Trichloroethane ug/L <0.096 0.50 07/28/23 13:260.096 1,1-Dichloroethane ug/L <0.056 0.50 07/28/23 13:260.056 1,1-Dichloroethene ug/L <0.079 0.50 07/28/23 13:260.079 1,1-Dichloropropene ug/L <0.066 0.50 07/28/23 13:260.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 07/28/23 13:260.12 1,2,3-Trichloropropane ug/L <0.17 0.50 07/28/23 13:260.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 07/28/23 13:260.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 07/28/23 13:260.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 07/28/23 13:260.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 07/28/23 13:260.15 1,2-Dichlorobenzene ug/L <0.094 0.50 07/28/23 13:260.094 1,2-Dichloroethane ug/L <0.11 0.50 07/28/23 13:260.11 1,2-Dichloropropane ug/L <0.14 0.50 07/28/23 13:260.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 07/28/23 13:260.071 1,3-Dichlorobenzene ug/L <0.098 0.50 07/28/23 13:260.098 1,3-Dichloropropane ug/L <0.085 0.50 07/28/23 13:260.085 1,4-Dichlorobenzene ug/L <0.090 0.50 07/28/23 13:260.090 2,2-Dichloropropane ug/L <0.12 0.50 07/28/23 13:260.12 2-Chlorotoluene ug/L <0.13 0.50 07/28/23 13:260.13 4-Chlorotoluene ug/L <0.096 0.50 07/28/23 13:260.096 Benzene ug/L <0.079 0.50 07/28/23 13:260.079 Bromobenzene ug/L <0.14 0.50 07/28/23 13:260.14 Bromochloromethane ug/L <0.094 0.50 07/28/23 13:260.094 Bromodichloromethane ug/L <0.17 0.50 07/28/23 13:260.17 Bromoform ug/L <0.20 0.50 07/28/23 13:260.20 Bromomethane ug/L <0.22 5.0 07/28/23 13:260.22 Carbon tetrachloride ug/L <0.17 0.50 07/28/23 13:260.17 Chlorobenzene ug/L <0.085 0.50 07/28/23 13:260.085 Chloroethane ug/L <0.17 1.0 07/28/23 13:260.17 Chloroform ug/L <0.069 0.50 07/28/23 13:260.069 Chloromethane ug/L <0.18 1.0 07/28/23 13:260.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 07/28/23 13:260.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 07/28/23 13:260.090 Dibromochloromethane ug/L <0.15 0.50 07/28/23 13:260.15 Dibromomethane ug/L <0.19 0.50 07/28/23 13:260.19 Dichlorodifluoromethane ug/L <0.12 0.50 07/28/23 13:260.12 Diisopropyl ether ug/L <0.072 0.50 07/28/23 13:260.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 24 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4094183 Associated Lab Samples:92679292002, 92679292003, 92679292004, 92679292007 Matrix: Water AnalyzedMDL Ethanol ug/L <5.0 200 07/28/23 13:265.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 07/28/23 13:260.11 Ethylbenzene ug/L <0.081 0.50 07/28/23 13:260.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 07/28/23 13:260.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 07/28/23 13:260.11 m&p-Xylene ug/L <0.094 1.0 07/28/23 13:260.094 Methyl-tert-butyl ether ug/L <0.053 0.50 07/28/23 13:260.053 Methylene Chloride ug/L <1.9 2.0 07/28/23 13:261.9 n-Butylbenzene ug/L <0.066 0.50 07/28/23 13:260.066 n-Propylbenzene ug/L <0.10 0.50 07/28/23 13:260.10 Naphthalene ug/L <0.10 2.0 07/28/23 13:260.10 o-Xylene ug/L <0.14 0.50 07/28/23 13:260.14 sec-Butylbenzene ug/L <0.085 0.50 07/28/23 13:260.085 Styrene ug/L <0.14 0.50 07/28/23 13:260.14 tert-Amyl Alcohol ug/L <7.4 100 07/28/23 13:267.4 tert-Amylmethyl ether ug/L <0.12 10.0 07/28/23 13:260.12 tert-Butyl Alcohol ug/L <4.1 50.0 07/28/23 13:264.1 tert-Butyl Formate ug/L <0.30 50.0 07/28/23 13:260.30 tert-Butylbenzene ug/L <0.086 0.50 07/28/23 13:260.086 Tetrachloroethene ug/L <0.086 0.50 07/28/23 13:260.086 Toluene ug/L <0.090 0.50 07/28/23 13:260.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 07/28/23 13:260.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 07/28/23 13:260.13 Trichloroethene ug/L <0.17 0.50 07/28/23 13:260.17 Trichlorofluoromethane ug/L <0.14 1.0 07/28/23 13:260.14 Vinyl chloride ug/L <0.15 1.0 07/28/23 13:260.15 1,2-Dichloroethane-d4 (S)%100 70-130 07/28/23 13:26 4-Bromofluorobenzene (S)%98 70-130 07/28/23 13:26 Toluene-d8 (S)%95 70-130 07/28/23 13:26 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4094184LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 18.720 94 60-140 1,1,1-Trichloroethane ug/L 17.920 89 60-140 1,1,2,2-Tetrachloroethane ug/L 18.820 94 60-140 1,1,2-Trichloroethane ug/L 16.520 83 60-140 1,1-Dichloroethane ug/L 17.220 86 60-140 1,1-Dichloroethene ug/L 17.720 88 60-140 1,1-Dichloropropene ug/L 18.720 94 60-140 1,2,3-Trichlorobenzene ug/L 19.220 96 60-140 1,2,3-Trichloropropane ug/L 18.020 90 60-140 1,2,4-Trichlorobenzene ug/L 19.420 97 60-140 1,2,4-Trimethylbenzene ug/L 18.220 91 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 25 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4094184LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 18.720 93 60-140 1,2-Dibromoethane (EDB)ug/L 18.720 94 60-140 1,2-Dichlorobenzene ug/L 19.220 96 60-140 1,2-Dichloroethane ug/L 18.020 90 60-140 1,2-Dichloropropane ug/L 17.520 87 60-140 1,3,5-Trimethylbenzene ug/L 18.320 91 60-140 1,3-Dichlorobenzene ug/L 18.820 94 60-140 1,3-Dichloropropane ug/L 18.120 90 60-140 1,4-Dichlorobenzene ug/L 18.620 93 60-140 2,2-Dichloropropane ug/L 17.520 88 60-140 2-Chlorotoluene ug/L 18.320 92 60-140 4-Chlorotoluene ug/L 18.320 91 60-140 Benzene ug/L 17.520 88 60-140 Bromobenzene ug/L 18.420 92 60-140 Bromochloromethane ug/L 17.820 89 60-140 Bromodichloromethane ug/L 15.920 79 60-140 Bromoform ug/L 18.620 93 60-140 Bromomethane ug/L 14.620 73 60-140 Carbon tetrachloride ug/L 17.520 88 60-140 Chlorobenzene ug/L 18.120 91 60-140 Chloroethane ug/L 15.720 78 60-140 Chloroform ug/L 17.620 88 60-140 Chloromethane ug/L 16.420 82 60-140 cis-1,2-Dichloroethene ug/L 17.620 88 60-140 cis-1,3-Dichloropropene ug/L 17.920 90 60-140 Dibromochloromethane ug/L 18.220 91 60-140 Dibromomethane ug/L 18.620 93 60-140 Dichlorodifluoromethane ug/L 17.520 88 60-140 Diisopropyl ether ug/L 17.220 86 60-140 Ethanol ug/L 696800 87 60-140 Ethyl-tert-butyl ether ug/L 35.940 90 60-140 Ethylbenzene ug/L 17.620 88 60-140 Hexachloro-1,3-butadiene ug/L 19.520 97 60-140 Isopropylbenzene (Cumene)ug/L 17.920 89 60-140 m&p-Xylene ug/L 35.440 89 60-140 Methyl-tert-butyl ether ug/L 17.420 87 60-140 Methylene Chloride ug/L 16.720 83 60-140 n-Butylbenzene ug/L 18.520 93 60-140 n-Propylbenzene ug/L 17.920 89 60-140 Naphthalene ug/L 19.920 99 60-140 o-Xylene ug/L 17.420 87 60-140 sec-Butylbenzene ug/L 17.320 87 60-140 Styrene ug/L 18.320 91 60-140 tert-Amyl Alcohol ug/L 359400 90 60-140 tert-Amylmethyl ether ug/L 37.040 93 60-140 tert-Butyl Alcohol ug/L 178200 89 60-140 tert-Butyl Formate ug/L 144160 90 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 26 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4094184LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 14.420 72 60-140 Tetrachloroethene ug/L 17.420 87 60-140 Toluene ug/L 17.520 87 60-140 trans-1,2-Dichloroethene ug/L 18.020 90 60-140 trans-1,3-Dichloropropene ug/L 18.220 91 60-140 Trichloroethene ug/L 18.020 90 60-140 Trichlorofluoromethane ug/L 16.620 83 60-140 Vinyl chloride ug/L 14.420 72 60-140 1,2-Dichloroethane-d4 (S)%99 70-130 4-Bromofluorobenzene (S)%98 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4094185MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92679292007 4094186 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 113 60-140119 5 3020<0.091 22.6 23.8 1,1,1-Trichloroethane ug/L 20 123 60-140129 5 3020<0.11 24.6 25.9 1,1,2,2-Tetrachloroethane ug/L 20 109 60-140118 8 3020<0.074 21.8 23.7 1,1,2-Trichloroethane ug/L 20 129 60-140122 6 3020<0.096 25.9 24.4 1,1-Dichloroethane ug/L 20 123 60-140126 2 3020<0.056 24.5 25.1 1,1-Dichloroethene ug/L 20 132 60-140134 2 3020<0.079 26.4 26.8 1,1-Dichloropropene ug/L 20 131 60-140132 1 3020<0.066 26.2 26.4 1,2,3-Trichlorobenzene ug/L 20 112 60-140113 1 3020<0.12 22.4 22.7 1,2,3-Trichloropropane ug/L 20 102 60-140114 11 3020<0.17 20.4 22.8 1,2,4-Trichlorobenzene ug/L 20 114 60-140115 1 3020<0.16 22.7 23.0 1,2,4-Trimethylbenzene ug/L M1,R12013360-14010 171 3020<0.031 26.5 2.1 1,2-Dibromo-3- chloropropane ug/L 20 100 60-140106 6 3020<0.18 20.0 21.3 1,2-Dibromoethane (EDB) ug/L 20 110 60-140118 7 3020<0.15 22.0 23.6 1,2-Dichlorobenzene ug/L 20 111 60-140114 3 3020<0.094 22.2 22.7 1,2-Dichloroethane ug/L 20 118 60-140126 6 3020<0.11 23.7 25.2 1,2-Dichloropropane ug/L 20 137 60-140126 9 3020<0.14 27.5 25.1 1,3,5-Trimethylbenzene ug/L M12010960-1401 3020<0.071 21.7 0.15J 1,3-Dichlorobenzene ug/L 20 109 60-140110 1 3020<0.098 21.9 22.0 1,3-Dichloropropane ug/L 20 105 60-140115 9 3020<0.085 21.1 23.1 1,4-Dichlorobenzene ug/L 20 109 60-140112 2 3020<0.090 21.8 22.3 2,2-Dichloropropane ug/L 20 126 60-140131 4 3020<0.12 25.1 26.2 2-Chlorotoluene ug/L 20 123 60-140116 6 3020<0.13 24.6 23.2 4-Chlorotoluene ug/L 20 125 60-140115 8 3020<0.096 25.1 23.1 Benzene ug/L 20 116 60-140120 3 3020<0.079 23.2 23.9 Bromobenzene ug/L 20 123 60-140111 10 3020<0.14 24.7 22.2 Bromochloromethane ug/L 20 119 60-140125 5 3020<0.094 23.8 25.0 Bromodichloromethane ug/L 20 132 60-140139 4 30208.6 35.0 36.4 Bromoform ug/L 20 110 60-140113 3 3020<0.20 22.0 22.6 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 27 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4094185MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92679292007 4094186 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L 20 88 60-14083 6 30200.42J 18.1 17.0 Carbon tetrachloride ug/L 20 121 60-140124 2 3020<0.17 24.2 24.8 Chlorobenzene ug/L 20 111 60-140117 6 3020<0.085 22.1 23.4 Chloroethane ug/L 20 130 60-140134 3 3020<0.17 25.9 26.7 Chloroform ug/L M12014360-140151 2 302040.9 69.4 71.2 Chloromethane ug/L M12014260-140171 18 30200.18J 28.6 34.4 cis-1,2-Dichloroethene ug/L 20 121 60-140126 4 3020<0.11 24.3 25.3 cis-1,3-Dichloropropene ug/L 20 125 60-140130 4 3020<0.090 25.1 26.0 Dibromochloromethane ug/L 20 111 60-140118 5 30202.2 24.4 25.8 Dibromomethane ug/L 20 113 60-140119 6 3020<0.19 22.5 23.8 Dichlorodifluoromethane ug/L 20 132 60-140133 1 3020<0.12 26.5 26.7 Diisopropyl ether ug/L 20 120 60-140128 6 3020<0.072 24.0 25.5 Ethanol ug/L 800 128 60-140124 3 30800<5.0 1020 989 Ethyl-tert-butyl ether ug/L 40 114 60-140119 5 3040<0.11 45.6 47.8 Ethylbenzene ug/L 20 109 60-140115 6 3020<0.081 21.8 23.1 Hexachloro-1,3-butadiene ug/L 20 119 60-140117 2 3020<0.35 23.9 23.4 Isopropylbenzene (Cumene)ug/L 20 114 60-140119 4 3020<0.11 22.9 23.8 m&p-Xylene ug/L R14010960-14065 50 3040<0.094 43.4 25.9 Methyl-tert-butyl ether ug/L 20 111 60-140118 6 3020<0.053 22.2 23.6 Methylene Chloride ug/L 20 114 60-140122 7 3020<1.9 22.8 24.4 n-Butylbenzene ug/L 20 123 60-140121 2 3020<0.066 24.5 24.1 n-Propylbenzene ug/L 20 123 60-140113 9 3020<0.10 24.6 22.5 Naphthalene ug/L R12010860-14067 47 3020<0.10 21.6 13.3 o-Xylene ug/L 20 110 60-140106 3 3020<0.14 22.0 21.3 sec-Butylbenzene ug/L 20 123 60-140114 8 3020<0.085 24.7 22.9 Styrene ug/L M1,R1201360-1403 126 3020<0.14 2.6 0.60 tert-Amyl Alcohol ug/L 400 112 60-140116 3 30400<7.4 450 464 tert-Amylmethyl ether ug/L 40 115 60-140120 4 3040<0.12 45.8 47.9 tert-Butyl Alcohol ug/L 200 115 60-140126 9 30200<4.1 230 252 tert-Butyl Formate ug/L 160 103 60-14094 9 30160<0.30 165 150 tert-Butylbenzene ug/L 20 107 60-14094 12 3020<0.086 21.3 18.9 Tetrachloroethene ug/L 20 116 60-140126 8 3020<0.086 23.2 25.2 Toluene ug/L 20 121 60-140125 3 3020<0.090 24.2 25.0 trans-1,2-Dichloroethene ug/L 20 130 60-140135 4 3020<0.10 26.0 27.1 trans-1,3-Dichloropropene ug/L 20 125 60-140122 3 3020<0.13 25.0 24.4 Trichloroethene ug/L 20 120 60-140124 3 3020<0.17 24.1 24.8 Trichlorofluoromethane ug/L 20 123 60-140127 3 3020<0.14 24.6 25.3 Vinyl chloride ug/L 20 109 60-140107 1 3020<0.15 21.8 21.5 1,2-Dichloroethane-d4 (S) %104 70-130101 4-Bromofluorobenzene (S) %100 70-130101 Toluene-d8 (S)%111 70-130110 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 28 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 790354 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92679292005 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4096169 Associated Lab Samples:92679292005 Matrix: Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 07/31/23 14:080.091 1,1,1-Trichloroethane ug/L <0.11 0.50 07/31/23 14:080.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 07/31/23 14:080.074 1,1,2-Trichloroethane ug/L <0.096 0.50 07/31/23 14:080.096 1,1-Dichloroethane ug/L <0.056 0.50 07/31/23 14:080.056 1,1-Dichloroethene ug/L <0.079 0.50 07/31/23 14:080.079 1,1-Dichloropropene ug/L <0.066 0.50 07/31/23 14:080.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 07/31/23 14:080.12 1,2,3-Trichloropropane ug/L <0.17 0.50 07/31/23 14:080.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 07/31/23 14:080.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 07/31/23 14:080.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 07/31/23 14:080.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 07/31/23 14:080.15 1,2-Dichlorobenzene ug/L <0.094 0.50 07/31/23 14:080.094 1,2-Dichloroethane ug/L <0.11 0.50 07/31/23 14:080.11 1,2-Dichloropropane ug/L <0.14 0.50 07/31/23 14:080.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 07/31/23 14:080.071 1,3-Dichlorobenzene ug/L <0.098 0.50 07/31/23 14:080.098 1,3-Dichloropropane ug/L <0.085 0.50 07/31/23 14:080.085 1,4-Dichlorobenzene ug/L <0.090 0.50 07/31/23 14:080.090 2,2-Dichloropropane ug/L <0.12 0.50 07/31/23 14:080.12 2-Chlorotoluene ug/L <0.13 0.50 07/31/23 14:080.13 4-Chlorotoluene ug/L <0.096 0.50 07/31/23 14:080.096 Benzene ug/L <0.079 0.50 07/31/23 14:080.079 Bromobenzene ug/L <0.14 0.50 07/31/23 14:080.14 Bromochloromethane ug/L <0.094 0.50 07/31/23 14:080.094 Bromodichloromethane ug/L <0.17 0.50 07/31/23 14:080.17 Bromoform ug/L <0.20 0.50 07/31/23 14:080.20 Bromomethane ug/L <0.22 5.0 07/31/23 14:080.22 Carbon tetrachloride ug/L <0.17 0.50 07/31/23 14:080.17 Chlorobenzene ug/L <0.085 0.50 07/31/23 14:080.085 Chloroethane ug/L <0.17 1.0 07/31/23 14:080.17 Chloroform ug/L <0.069 0.50 07/31/23 14:080.069 Chloromethane ug/L <0.18 1.0 07/31/23 14:080.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 07/31/23 14:080.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 07/31/23 14:080.090 Dibromochloromethane ug/L <0.15 0.50 07/31/23 14:080.15 Dibromomethane ug/L <0.19 0.50 07/31/23 14:080.19 Dichlorodifluoromethane ug/L <0.12 0.50 07/31/23 14:080.12 Diisopropyl ether ug/L <0.072 0.50 07/31/23 14:080.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 29 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4096169 Associated Lab Samples:92679292005 Matrix: Water AnalyzedMDL Ethanol ug/L <5.0 200 07/31/23 14:085.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 07/31/23 14:080.11 Ethylbenzene ug/L <0.081 0.50 07/31/23 14:080.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 07/31/23 14:080.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 07/31/23 14:080.11 m&p-Xylene ug/L <0.094 1.0 07/31/23 14:080.094 Methyl-tert-butyl ether ug/L <0.053 0.50 07/31/23 14:080.053 Methylene Chloride ug/L <1.9 2.0 07/31/23 14:081.9 n-Butylbenzene ug/L <0.066 0.50 07/31/23 14:080.066 n-Propylbenzene ug/L <0.10 0.50 07/31/23 14:080.10 Naphthalene ug/L <0.10 2.0 07/31/23 14:080.10 o-Xylene ug/L <0.14 0.50 07/31/23 14:080.14 sec-Butylbenzene ug/L <0.085 0.50 07/31/23 14:080.085 Styrene ug/L <0.14 0.50 07/31/23 14:080.14 tert-Amyl Alcohol ug/L <7.4 100 07/31/23 14:087.4 tert-Amylmethyl ether ug/L <0.12 10.0 07/31/23 14:080.12 tert-Butyl Alcohol ug/L <4.1 50.0 07/31/23 14:084.1 tert-Butyl Formate ug/L <0.30 50.0 07/31/23 14:080.30 tert-Butylbenzene ug/L <0.086 0.50 07/31/23 14:080.086 Tetrachloroethene ug/L <0.086 0.50 07/31/23 14:080.086 Toluene ug/L <0.090 0.50 07/31/23 14:080.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 07/31/23 14:080.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 07/31/23 14:080.13 Trichloroethene ug/L <0.17 0.50 07/31/23 14:080.17 Trichlorofluoromethane ug/L <0.14 1.0 07/31/23 14:080.14 Vinyl chloride ug/L <0.15 1.0 07/31/23 14:080.15 1,2-Dichloroethane-d4 (S)%98 70-130 07/31/23 14:08 4-Bromofluorobenzene (S)%97 70-130 07/31/23 14:08 Toluene-d8 (S)%94 70-130 07/31/23 14:08 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4096170LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 18.920 94 60-140 1,1,1-Trichloroethane ug/L 17.420 87 60-140 1,1,2,2-Tetrachloroethane ug/L 18.220 91 60-140 1,1,2-Trichloroethane ug/L 16.320 82 60-140 1,1-Dichloroethane ug/L 16.520 83 60-140 1,1-Dichloroethene ug/L 16.920 84 60-140 1,1-Dichloropropene ug/L 17.520 87 60-140 1,2,3-Trichlorobenzene ug/L 18.820 94 60-140 1,2,3-Trichloropropane ug/L 17.520 88 60-140 1,2,4-Trichlorobenzene ug/L 19.120 96 60-140 1,2,4-Trimethylbenzene ug/L 17.920 89 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 30 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4096170LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 17.420 87 60-140 1,2-Dibromoethane (EDB)ug/L 18.520 93 60-140 1,2-Dichlorobenzene ug/L 19.320 97 60-140 1,2-Dichloroethane ug/L 17.520 88 60-140 1,2-Dichloropropane ug/L 17.220 86 60-140 1,3,5-Trimethylbenzene ug/L 18.020 90 60-140 1,3-Dichlorobenzene ug/L 18.520 93 60-140 1,3-Dichloropropane ug/L 17.820 89 60-140 1,4-Dichlorobenzene ug/L 18.720 94 60-140 2,2-Dichloropropane ug/L 16.720 84 60-140 2-Chlorotoluene ug/L 17.620 88 60-140 4-Chlorotoluene ug/L 17.920 89 60-140 Benzene ug/L 17.220 86 60-140 Bromobenzene ug/L 18.620 93 60-140 Bromochloromethane ug/L 17.620 88 60-140 Bromodichloromethane ug/L 15.920 79 60-140 Bromoform ug/L 18.520 93 60-140 Bromomethane ug/L 15.020 75 60-140 Carbon tetrachloride ug/L 17.720 89 60-140 Chlorobenzene ug/L 18.420 92 60-140 Chloroethane ug/L 15.120 76 60-140 Chloroform ug/L 17.220 86 60-140 Chloromethane ug/L 14.320 72 60-140 cis-1,2-Dichloroethene ug/L 16.820 84 60-140 cis-1,3-Dichloropropene ug/L 17.620 88 60-140 Dibromochloromethane ug/L 18.320 91 60-140 Dibromomethane ug/L 19.120 96 60-140 Dichlorodifluoromethane ug/L 18.520 93 60-140 Diisopropyl ether ug/L 15.720 79 60-140 Ethanol ug/L 608800 76 60-140 Ethyl-tert-butyl ether ug/L 33.640 84 60-140 Ethylbenzene ug/L 17.420 87 60-140 Hexachloro-1,3-butadiene ug/L 18.920 95 60-140 Isopropylbenzene (Cumene)ug/L 17.820 89 60-140 m&p-Xylene ug/L 34.840 87 60-140 Methyl-tert-butyl ether ug/L 16.420 82 60-140 Methylene Chloride ug/L 15.220 76 60-140 n-Butylbenzene ug/L 17.520 87 60-140 n-Propylbenzene ug/L 17.220 86 60-140 Naphthalene ug/L 19.020 95 60-140 o-Xylene ug/L 17.020 85 60-140 sec-Butylbenzene ug/L 16.820 84 60-140 Styrene ug/L 18.220 91 60-140 tert-Amyl Alcohol ug/L 327400 82 60-140 tert-Amylmethyl ether ug/L 36.540 91 60-140 tert-Butyl Alcohol ug/L 154200 77 60-140 tert-Butyl Formate ug/L 135160 84 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 31 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4096170LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 14.320 71 60-140 Tetrachloroethene ug/L 17.320 86 60-140 Toluene ug/L 17.320 86 60-140 trans-1,2-Dichloroethene ug/L 17.020 85 60-140 trans-1,3-Dichloropropene ug/L 17.720 89 60-140 Trichloroethene ug/L 18.620 93 60-140 Trichlorofluoromethane ug/L 17.020 85 60-140 Vinyl chloride ug/L 13.220 66 60-140 1,2-Dichloroethane-d4 (S)%95 70-130 4-Bromofluorobenzene (S)%97 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4096171MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92679660013 4096172 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 116 60-140111 5 3020ND23.2 22.1 1,1,1-Trichloroethane ug/L 20 112 60-140107 5 3020ND22.3 21.3 1,1,2,2-Tetrachloroethane ug/L 20 107 60-140101 6 3020ND21.4 20.2 1,1,2-Trichloroethane ug/L 20 97 60-14091 6 3020ND19.4 18.3 1,1-Dichloroethane ug/L 20 101 60-14096 5 3020ND20.1 19.2 1,1-Dichloroethene ug/L 20 108 60-140103 5 3020ND21.6 20.5 1,1-Dichloropropene ug/L 20 113 60-140108 5 3020ND22.6 21.5 1,2,3-Trichlorobenzene ug/L 20 116 60-140107 8 3020ND23.2 21.4 1,2,3-Trichloropropane ug/L 20 103 60-14095 8 3020ND20.6 18.9 1,2,4-Trichlorobenzene ug/L 20 117 60-140110 6 3020ND23.5 22.1 1,2,4-Trimethylbenzene ug/L 20 110 60-140103 6 3020ND21.9 20.6 1,2-Dibromo-3- chloropropane ug/L 20 102 60-14096 6 3020ND20.5 19.2 1,2-Dibromoethane (EDB) ug/L 20 111 60-140105 6 3020ND22.2 21.0 1,2-Dichlorobenzene ug/L 20 115 60-140108 6 3020ND23.0 21.6 1,2-Dichloroethane ug/L 20 105 60-140100 5 3020ND20.9 19.9 1,2-Dichloropropane ug/L 20 103 60-14098 5 3020ND20.6 19.7 1,3,5-Trimethylbenzene ug/L 20 111 60-140104 6 3020ND22.1 20.8 1,3-Dichlorobenzene ug/L 20 115 60-140107 7 3020ND22.9 21.5 1,3-Dichloropropane ug/L 20 107 60-140101 6 3020ND21.4 20.2 1,4-Dichlorobenzene ug/L 20 113 60-140105 7 3020ND22.5 21.1 2,2-Dichloropropane ug/L 20 110 60-140103 6 3020ND21.9 20.7 2-Chlorotoluene ug/L 20 108 60-140102 6 3020ND21.7 20.5 4-Chlorotoluene ug/L 20 110 60-140102 7 3020ND21.9 20.5 Benzene ug/L 20 106 60-140102 4 3020ND21.3 20.4 Bromobenzene ug/L 20 112 60-140107 4 3020ND22.3 21.3 Bromochloromethane ug/L 20 108 60-140102 6 3020ND21.6 20.3 Bromodichloromethane ug/L 20 95 60-14092 4 3020ND19.0 18.3 Bromoform ug/L 20 111 60-140105 6 3020ND22.2 20.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 32 of 38 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4096171MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92679660013 4096172 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L 20 86 60-14081 6 3020ND17.2 16.2 Carbon tetrachloride ug/L 20 116 60-140111 4 3020ND23.3 22.3 Chlorobenzene ug/L 20 113 60-140108 5 3020ND22.7 21.6 Chloroethane ug/L 20 90 60-14086 5 3020ND18.1 17.2 Chloroform ug/L 20 105 60-14098 7 3020ND21.0 19.7 Chloromethane ug/L 20 85 60-14080 7 3020ND17.1 15.9 cis-1,2-Dichloroethene ug/L 20 102 60-14096 6 3020ND20.4 19.2 cis-1,3-Dichloropropene ug/L 20 104 60-14099 5 3020ND20.8 19.8 Dibromochloromethane ug/L 20 110 60-140105 5 3020ND21.9 20.9 Dibromomethane ug/L 20 115 60-140110 4 3020ND23.0 22.1 Dichlorodifluoromethane ug/L 20 118 60-140111 7 3020ND23.7 22.2 Diisopropyl ether ug/L 20 93 60-14087 7 3020ND18.5 17.3 Ethanol ug/L 800 87 60-14084 4 30800ND697 669 Ethyl-tert-butyl ether ug/L 40 99 60-14094 6 3040ND39.7 37.4 Ethylbenzene ug/L 20 109 60-140104 5 3020ND21.8 20.8 Hexachloro-1,3-butadiene ug/L 20 134 60-140120 11 3020ND26.8 24.0 Isopropylbenzene (Cumene)ug/L 20 112 60-140106 6 3020ND22.5 21.1 m&p-Xylene ug/L 40 109 60-140103 6 3040ND43.7 41.1 Methyl-tert-butyl ether ug/L 20 95 60-14091 5 3020ND19.0 18.1 Methylene Chloride ug/L 20 90 60-14084 7 3020ND18.0 16.8 n-Butylbenzene ug/L 20 114 60-140106 8 3020ND22.9 21.2 n-Propylbenzene ug/L 20 109 60-140101 7 3020ND21.8 20.3 Naphthalene ug/L 20 111 60-140106 5 3020ND22.2 21.1 o-Xylene ug/L 20 106 60-140100 5 3020ND21.1 20.1 sec-Butylbenzene ug/L 20 109 60-140101 7 3020ND21.8 20.2 Styrene ug/L 20 109 60-140105 5 3020ND21.9 20.9 tert-Amyl Alcohol ug/L 400 94 60-14089 6 30400ND376 355 tert-Amylmethyl ether ug/L 40 108 60-140103 5 3040ND43.1 41.2 tert-Butyl Alcohol ug/L 200 93 60-14093 1 30200ND187 185 tert-Butyl Formate ug/L 160 87 60-14073 18 30160ND140 116 tert-Butylbenzene ug/L 20 92 60-14085 8 3020ND18.3 16.9 Tetrachloroethene ug/L 20 116 60-140109 6 3020ND23.2 21.9 Toluene ug/L 20 108 60-140104 4 3020ND21.6 20.7 trans-1,2-Dichloroethene ug/L 20 106 60-14099 7 3020ND21.3 19.9 trans-1,3-Dichloropropene ug/L 20 104 60-14099 4 3020ND20.7 19.8 Trichloroethene ug/L 20 117 60-140114 3 3020ND23.4 22.7 Trichlorofluoromethane ug/L 20 112 60-140107 5 3020ND22.4 21.3 Vinyl chloride ug/L 20 85 60-14078 8 3020ND17.0 15.7 1,2-Dichloroethane-d4 (S) %94 70-13094 4-Bromofluorobenzene (S) %96 70-13097 Toluene-d8 (S)%96 70-13096 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 33 of 38 #=QL# QUALIFIERS Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 RPD value was outside control limits.R1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 34 of 38 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92679292 DOT'S PLACE TOO MOUNT MOURNE N Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92679292001 789623MW-1R SM 6200B 92679292002 789971MW-4 SM 6200B 92679292003 789971MW-5 SM 6200B 92679292004 789971MW-6 SM 6200B 92679292005 790354DW-1 SM 6200B 92679292006 789623WSW-8 SM 6200B 92679292007 789971WSW-9 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/02/2023 10:40 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 35 of 38 Page 36 of 38 Page 37 of 38 Page 38 of 38 #=CL# August 08, 2023 LIMS USE: FR - NOELLE FRANCE LIMS OBJECT ID: 92681018 92681018 Project: Pace Project No.: RE: Noelle France ATC Group Services LLC- South Charlotte 7606 Whitehall Exe Center Dr Suite 800 Charlotte, NC 28273 DOT'S PLACE TOO Dear Noelle France: Enclosed are the analytical results for sample(s) received by the laboratory on August 04, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Taylor M Cannon taylor.cannon@pacelabs.com Project Manager (704)875-9092 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 17 #=CP# CERTIFICATIONS Pace Project No.: Project: 92681018 DOT'S PLACE TOO Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 17 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92681018 DOT'S PLACE TOO Lab ID Sample ID Matrix Date Collected Date Received 92681018001 WSW-8 Water 08/04/23 15:10 08/04/23 15:36 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 17 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92681018 DOT'S PLACE TOO Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92681018001 WSW-8 EPA 504.1 2 PASI-CHH SM 6200B 69 PASI-CTMH PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92681018 DOT'S PLACE TOO Sample: WSW-8 Lab ID: 92681018001 Collected: 08/04/23 15:10 Received: 08/04/23 15:36 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: EPA 504.1 Preparation Method: EPA 504.1 Pace Analytical Services - Charlotte 504 GCS EDB and DBCP 1,2-Dibromoethane (EDB)<0.0055 ug/L 08/07/23 21:40 106-93-408/07/23 10:310.019 0.0055 1 Surrogates 1-Chloro-2-bromopropane (S)70 %08/07/23 21:40 301-79-5608/07/23 10:3170-130 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol <7.4 ug/L 08/07/23 15:10 75-85-4100 7.4 1 tert-Amylmethyl ether <0.12 ug/L 08/07/23 15:10 994-05-810.0 0.12 1 Benzene <0.079 ug/L 08/07/23 15:10 71-43-20.50 0.079 1 Bromobenzene <0.14 ug/L 08/07/23 15:10 108-86-10.50 0.14 1 Bromochloromethane <0.094 ug/L 08/07/23 15:10 74-97-50.50 0.094 1 Bromodichloromethane <0.17 ug/L 08/07/23 15:10 75-27-40.50 0.17 1 Bromoform <0.20 ug/L 08/07/23 15:10 75-25-20.50 0.20 1 Bromomethane <0.22 ug/L 08/07/23 15:10 74-83-95.0 0.22 1 tert-Butyl Alcohol <4.1 ug/L 08/07/23 15:10 75-65-050.0 4.1 1 n-Butylbenzene <0.066 ug/L 08/07/23 15:10 104-51-80.50 0.066 1 sec-Butylbenzene <0.085 ug/L 08/07/23 15:10 135-98-80.50 0.085 1 tert-Butylbenzene <0.086 ug/L 08/07/23 15:10 98-06-60.50 0.086 1 tert-Butyl Formate <0.30 ug/L 08/07/23 15:10 762-75-450.0 0.30 1 Carbon tetrachloride <0.17 ug/L 08/07/23 15:10 56-23-50.50 0.17 1 Chlorobenzene <0.085 ug/L 08/07/23 15:10 108-90-70.50 0.085 1 Chloroethane <0.17 ug/L 08/07/23 15:10 75-00-31.0 0.17 1 Chloroform 0.22J ug/L 08/07/23 15:10 67-66-30.50 0.069 1 Chloromethane <0.18 ug/L 08/07/23 15:10 74-87-31.0 0.18 1 2-Chlorotoluene <0.13 ug/L 08/07/23 15:10 95-49-80.50 0.13 1 4-Chlorotoluene <0.096 ug/L 08/07/23 15:10 106-43-40.50 0.096 1 1,2-Dibromo-3-chloropropane <0.18 ug/L 08/07/23 15:10 96-12-81.0 0.18 1 Dibromochloromethane <0.15 ug/L 08/07/23 15:10 124-48-10.50 0.15 1 1,2-Dibromoethane (EDB)<0.15 ug/L 08/07/23 15:10 106-93-40.50 0.15 1 Dibromomethane <0.19 ug/L 08/07/23 15:10 74-95-30.50 0.19 1 1,2-Dichlorobenzene <0.094 ug/L 08/07/23 15:10 95-50-10.50 0.094 1 1,3-Dichlorobenzene <0.098 ug/L 08/07/23 15:10 541-73-10.50 0.098 1 1,4-Dichlorobenzene <0.090 ug/L 08/07/23 15:10 106-46-70.50 0.090 1 Dichlorodifluoromethane <0.12 ug/L 08/07/23 15:10 75-71-80.50 0.12 1 1,1-Dichloroethane <0.056 ug/L 08/07/23 15:10 75-34-30.50 0.056 1 1,2-Dichloroethane <0.11 ug/L 08/07/23 15:10 107-06-20.50 0.11 1 1,1-Dichloroethene <0.079 ug/L 08/07/23 15:10 75-35-40.50 0.079 1 cis-1,2-Dichloroethene <0.11 ug/L 08/07/23 15:10 156-59-20.50 0.11 1 trans-1,2-Dichloroethene <0.10 ug/L 08/07/23 15:10 156-60-50.50 0.10 1 1,2-Dichloropropane <0.14 ug/L 08/07/23 15:10 78-87-50.50 0.14 1 1,3-Dichloropropane <0.085 ug/L 08/07/23 15:10 142-28-90.50 0.085 1 2,2-Dichloropropane <0.12 ug/L 08/07/23 15:10 594-20-70.50 0.12 1 1,1-Dichloropropene <0.066 ug/L 08/07/23 15:10 563-58-60.50 0.066 1 cis-1,3-Dichloropropene <0.090 ug/L 08/07/23 15:10 10061-01-50.50 0.090 1 trans-1,3-Dichloropropene <0.13 ug/L 08/07/23 15:10 10061-02-60.50 0.13 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92681018 DOT'S PLACE TOO Sample: WSW-8 Lab ID: 92681018001 Collected: 08/04/23 15:10 Received: 08/04/23 15:36 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLPQL Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Diisopropyl ether <0.072 ug/L 08/07/23 15:10 108-20-30.50 0.072 1 Ethanol <5.0 ug/L 08/07/23 15:10 64-17-5200 5.0 1 Ethylbenzene <0.081 ug/L 08/07/23 15:10 100-41-40.50 0.081 1 Ethyl-tert-butyl ether <0.11 ug/L 08/07/23 15:10 637-92-310.0 0.11 1 Hexachloro-1,3-butadiene <0.35 ug/L 08/07/23 15:10 87-68-32.0 0.35 1 Isopropylbenzene (Cumene)<0.11 ug/L 08/07/23 15:10 98-82-80.50 0.11 1 Methylene Chloride <1.9 ug/L 08/07/23 15:10 75-09-22.0 1.9 1 Methyl-tert-butyl ether <0.053 ug/L 08/07/23 15:10 1634-04-40.50 0.053 1 Naphthalene <0.10 ug/L 08/07/23 15:10 91-20-32.0 0.10 1 n-Propylbenzene <0.10 ug/L 08/07/23 15:10 103-65-10.50 0.10 1 Styrene <0.14 ug/L 08/07/23 15:10 100-42-50.50 0.14 1 1,1,1,2-Tetrachloroethane <0.091 ug/L 08/07/23 15:10 630-20-60.50 0.091 1 1,1,2,2-Tetrachloroethane <0.074 ug/L 08/07/23 15:10 79-34-50.50 0.074 1 Tetrachloroethene <0.086 ug/L 08/07/23 15:10 127-18-40.50 0.086 1 Toluene <0.090 ug/L 08/07/23 15:10 108-88-30.50 0.090 1 1,2,3-Trichlorobenzene <0.12 ug/L 08/07/23 15:10 87-61-62.0 0.12 1 1,2,4-Trichlorobenzene <0.16 ug/L 08/07/23 15:10 120-82-12.0 0.16 1 1,1,1-Trichloroethane <0.11 ug/L 08/07/23 15:10 71-55-60.50 0.11 1 1,1,2-Trichloroethane <0.096 ug/L 08/07/23 15:10 79-00-50.50 0.096 1 Trichloroethene <0.17 ug/L 08/07/23 15:10 79-01-60.50 0.17 1 Trichlorofluoromethane <0.14 ug/L 08/07/23 15:10 75-69-41.0 0.14 1 1,2,3-Trichloropropane <0.17 ug/L 08/07/23 15:10 96-18-40.50 0.17 1 1,2,4-Trimethylbenzene <0.031 ug/L 08/07/23 15:10 95-63-60.50 0.031 1 1,3,5-Trimethylbenzene <0.071 ug/L 08/07/23 15:10 108-67-80.50 0.071 1 Vinyl chloride <0.15 ug/L 08/07/23 15:10 75-01-41.0 0.15 1 m&p-Xylene <0.094 ug/L 08/07/23 15:10 179601-23-11.0 0.094 1 o-Xylene <0.14 ug/L 08/07/23 15:10 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)95 %08/07/23 15:10 17060-07-070-130 1 4-Bromofluorobenzene (S)95 %08/07/23 15:10 460-00-470-130 1 Toluene-d8 (S)104 %08/07/23 15:10 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92681018 DOT'S PLACE TOO Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 791870 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92681018001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4103460 Associated Lab Samples:92681018001 Matrix: Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L <0.091 0.50 08/07/23 13:580.091 1,1,1-Trichloroethane ug/L <0.11 0.50 08/07/23 13:580.11 1,1,2,2-Tetrachloroethane ug/L <0.074 0.50 08/07/23 13:580.074 1,1,2-Trichloroethane ug/L <0.096 0.50 08/07/23 13:580.096 1,1-Dichloroethane ug/L <0.056 0.50 08/07/23 13:580.056 1,1-Dichloroethene ug/L <0.079 0.50 08/07/23 13:580.079 1,1-Dichloropropene ug/L <0.066 0.50 08/07/23 13:580.066 1,2,3-Trichlorobenzene ug/L <0.12 2.0 08/07/23 13:580.12 1,2,3-Trichloropropane ug/L <0.17 0.50 08/07/23 13:580.17 1,2,4-Trichlorobenzene ug/L <0.16 2.0 08/07/23 13:580.16 1,2,4-Trimethylbenzene ug/L <0.031 0.50 08/07/23 13:580.031 1,2-Dibromo-3-chloropropane ug/L <0.18 1.0 08/07/23 13:580.18 1,2-Dibromoethane (EDB)ug/L <0.15 0.50 08/07/23 13:580.15 1,2-Dichlorobenzene ug/L <0.094 0.50 08/07/23 13:580.094 1,2-Dichloroethane ug/L <0.11 0.50 08/07/23 13:580.11 1,2-Dichloropropane ug/L <0.14 0.50 08/07/23 13:580.14 1,3,5-Trimethylbenzene ug/L <0.071 0.50 08/07/23 13:580.071 1,3-Dichlorobenzene ug/L <0.098 0.50 08/07/23 13:580.098 1,3-Dichloropropane ug/L <0.085 0.50 08/07/23 13:580.085 1,4-Dichlorobenzene ug/L <0.090 0.50 08/07/23 13:580.090 2,2-Dichloropropane ug/L <0.12 0.50 08/07/23 13:580.12 2-Chlorotoluene ug/L <0.13 0.50 08/07/23 13:580.13 4-Chlorotoluene ug/L <0.096 0.50 08/07/23 13:580.096 Benzene ug/L <0.079 0.50 08/07/23 13:580.079 Bromobenzene ug/L <0.14 0.50 08/07/23 13:580.14 Bromochloromethane ug/L <0.094 0.50 08/07/23 13:580.094 Bromodichloromethane ug/L <0.17 0.50 08/07/23 13:580.17 Bromoform ug/L <0.20 0.50 08/07/23 13:580.20 Bromomethane ug/L <0.22 5.0 08/07/23 13:580.22 Carbon tetrachloride ug/L <0.17 0.50 08/07/23 13:580.17 Chlorobenzene ug/L <0.085 0.50 08/07/23 13:580.085 Chloroethane ug/L <0.17 1.0 08/07/23 13:580.17 Chloroform ug/L <0.069 0.50 08/07/23 13:580.069 Chloromethane ug/L <0.18 1.0 08/07/23 13:580.18 cis-1,2-Dichloroethene ug/L <0.11 0.50 08/07/23 13:580.11 cis-1,3-Dichloropropene ug/L <0.090 0.50 08/07/23 13:580.090 Dibromochloromethane ug/L <0.15 0.50 08/07/23 13:580.15 Dibromomethane ug/L <0.19 0.50 08/07/23 13:580.19 Dichlorodifluoromethane ug/L <0.12 0.50 08/07/23 13:580.12 Diisopropyl ether ug/L <0.072 0.50 08/07/23 13:580.072 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92681018 DOT'S PLACE TOO Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4103460 Associated Lab Samples:92681018001 Matrix: Water AnalyzedMDL Ethanol ug/L <5.0 200 08/07/23 13:585.0 Ethyl-tert-butyl ether ug/L <0.11 10.0 08/07/23 13:580.11 Ethylbenzene ug/L <0.081 0.50 08/07/23 13:580.081 Hexachloro-1,3-butadiene ug/L <0.35 2.0 08/07/23 13:580.35 Isopropylbenzene (Cumene)ug/L <0.11 0.50 08/07/23 13:580.11 m&p-Xylene ug/L <0.094 1.0 08/07/23 13:580.094 Methyl-tert-butyl ether ug/L <0.053 0.50 08/07/23 13:580.053 Methylene Chloride ug/L <1.9 2.0 08/07/23 13:581.9 n-Butylbenzene ug/L <0.066 0.50 08/07/23 13:580.066 n-Propylbenzene ug/L <0.10 0.50 08/07/23 13:580.10 Naphthalene ug/L <0.10 2.0 08/07/23 13:580.10 o-Xylene ug/L <0.14 0.50 08/07/23 13:580.14 sec-Butylbenzene ug/L <0.085 0.50 08/07/23 13:580.085 Styrene ug/L <0.14 0.50 08/07/23 13:580.14 tert-Amyl Alcohol ug/L <7.4 100 08/07/23 13:587.4 tert-Amylmethyl ether ug/L <0.12 10.0 08/07/23 13:580.12 tert-Butyl Alcohol ug/L <4.1 50.0 08/07/23 13:584.1 tert-Butyl Formate ug/L <0.30 50.0 08/07/23 13:580.30 tert-Butylbenzene ug/L <0.086 0.50 08/07/23 13:580.086 Tetrachloroethene ug/L <0.086 0.50 08/07/23 13:580.086 Toluene ug/L <0.090 0.50 08/07/23 13:580.090 trans-1,2-Dichloroethene ug/L <0.10 0.50 08/07/23 13:580.10 trans-1,3-Dichloropropene ug/L <0.13 0.50 08/07/23 13:580.13 Trichloroethene ug/L <0.17 0.50 08/07/23 13:580.17 Trichlorofluoromethane ug/L <0.14 1.0 08/07/23 13:580.14 Vinyl chloride ug/L <0.15 1.0 08/07/23 13:580.15 1,2-Dichloroethane-d4 (S)%95 70-130 08/07/23 13:58 4-Bromofluorobenzene (S)%94 70-130 08/07/23 13:58 Toluene-d8 (S)%105 70-130 08/07/23 13:58 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4103461LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 20.620 103 60-140 1,1,1-Trichloroethane ug/L 19.220 96 60-140 1,1,2,2-Tetrachloroethane ug/L 19.820 99 60-140 1,1,2-Trichloroethane ug/L 19.720 98 60-140 1,1-Dichloroethane ug/L 17.820 89 60-140 1,1-Dichloroethene ug/L 18.420 92 60-140 1,1-Dichloropropene ug/L 17.520 87 60-140 1,2,3-Trichlorobenzene ug/L 20.520 102 60-140 1,2,3-Trichloropropane ug/L 18.520 93 60-140 1,2,4-Trichlorobenzene ug/L 20.320 101 60-140 1,2,4-Trimethylbenzene ug/L 19.920 100 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92681018 DOT'S PLACE TOO Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4103461LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 19.020 95 60-140 1,2-Dibromoethane (EDB)ug/L 20.020 100 60-140 1,2-Dichlorobenzene ug/L 20.320 101 60-140 1,2-Dichloroethane ug/L 18.920 94 60-140 1,2-Dichloropropane ug/L 18.720 93 60-140 1,3,5-Trimethylbenzene ug/L 19.820 99 60-140 1,3-Dichlorobenzene ug/L 20.120 100 60-140 1,3-Dichloropropane ug/L 18.820 94 60-140 1,4-Dichlorobenzene ug/L 20.320 101 60-140 2,2-Dichloropropane ug/L 19.420 97 60-140 2-Chlorotoluene ug/L 19.320 96 60-140 4-Chlorotoluene ug/L 19.420 97 60-140 Benzene ug/L 18.920 95 60-140 Bromobenzene ug/L 19.920 99 60-140 Bromochloromethane ug/L 19.920 99 60-140 Bromodichloromethane ug/L 19.620 98 60-140 Bromoform ug/L 16.820 84 60-140 Bromomethane ug/L 25.420 127 60-140 Carbon tetrachloride ug/L 20.820 104 60-140 Chlorobenzene ug/L 19.820 99 60-140 Chloroethane ug/L 19.820 99 60-140 Chloroform ug/L 17.820 89 60-140 Chloromethane ug/L 15.320 76 60-140 cis-1,2-Dichloroethene ug/L 17.720 89 60-140 cis-1,3-Dichloropropene ug/L 19.220 96 60-140 Dibromochloromethane ug/L 20.120 101 60-140 Dibromomethane ug/L 20.220 101 60-140 Dichlorodifluoromethane ug/L 21.120 105 60-140 Diisopropyl ether ug/L 16.120 81 60-140 Ethanol ug/L 652800 81 60-140 Ethyl-tert-butyl ether ug/L 32.240 80 60-140 Ethylbenzene ug/L 19.420 97 60-140 Hexachloro-1,3-butadiene ug/L 21.320 107 60-140 Isopropylbenzene (Cumene)ug/L 20.520 102 60-140 m&p-Xylene ug/L 39.140 98 60-140 Methyl-tert-butyl ether ug/L 16.720 83 60-140 Methylene Chloride ug/L 18.620 93 60-140 n-Butylbenzene ug/L 20.720 104 60-140 n-Propylbenzene ug/L 19.020 95 60-140 Naphthalene ug/L 20.120 101 60-140 o-Xylene ug/L 19.120 96 60-140 sec-Butylbenzene ug/L 19.920 99 60-140 Styrene ug/L 20.120 101 60-140 tert-Amyl Alcohol ug/L 364400 91 60-140 tert-Amylmethyl ether ug/L 36.340 91 60-140 tert-Butyl Alcohol ug/L 169200 84 60-140 tert-Butyl Formate ug/L 135160 84 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92681018 DOT'S PLACE TOO Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4103461LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 16.820 84 60-140 Tetrachloroethene ug/L 20.420 102 60-140 Toluene ug/L 18.120 91 60-140 trans-1,2-Dichloroethene ug/L 17.620 88 60-140 trans-1,3-Dichloropropene ug/L 19.420 97 60-140 Trichloroethene ug/L 20.720 104 60-140 Trichlorofluoromethane ug/L 20.220 101 60-140 Vinyl chloride ug/L 15.120 76 60-140 1,2-Dichloroethane-d4 (S)%99 70-130 4-Bromofluorobenzene (S)%99 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4103462MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92681011001 4103463 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 109 60-140122 11 3020ND21.8 24.4 1,1,1-Trichloroethane ug/L 20 102 60-140115 12 3020ND20.4 22.9 1,1,2,2-Tetrachloroethane ug/L 20 102 60-140111 8 3020ND20.4 22.1 1,1,2-Trichloroethane ug/L 20 103 60-140114 11 3020ND20.6 22.9 1,1-Dichloroethane ug/L 20 97 60-140111 13 3020ND19.5 22.1 1,1-Dichloroethene ug/L 20 107 60-140119 11 3020ND21.4 23.8 1,1-Dichloropropene ug/L 20 109 60-140120 10 3020ND21.8 24.1 1,2,3-Trichlorobenzene ug/L 20 114 60-140129 13 3020ND22.8 25.9 1,2,3-Trichloropropane ug/L 20 95 60-140103 9 3020ND18.9 20.6 1,2,4-Trichlorobenzene ug/L 20 114 60-140125 9 3020ND22.8 25.0 1,2,4-Trimethylbenzene ug/L 20 107 60-140117 9 3020ND21.4 23.4 1,2-Dibromo-3- chloropropane ug/L 20 101 60-140114 12 3020ND20.1 22.8 1,2-Dibromoethane (EDB) ug/L 20 106 60-140117 10 3020ND21.2 23.4 1,2-Dichlorobenzene ug/L 20 107 60-140118 10 3020ND21.4 23.6 1,2-Dichloroethane ug/L 20 96 60-140108 12 3020ND19.3 21.7 1,2-Dichloropropane ug/L 20 103 60-140115 11 3020ND20.7 23.1 1,3,5-Trimethylbenzene ug/L 20 106 60-140117 10 3020ND21.2 23.5 1,3-Dichlorobenzene ug/L 20 107 60-140117 9 3020ND21.4 23.5 1,3-Dichloropropane ug/L 20 98 60-140110 12 3020ND19.5 21.9 1,4-Dichlorobenzene ug/L 20 106 60-140115 8 3020ND21.2 23.0 2,2-Dichloropropane ug/L 20 104 60-140117 12 3020ND20.9 23.5 2-Chlorotoluene ug/L 20 101 60-140110 9 3020ND20.2 22.1 4-Chlorotoluene ug/L 20 103 60-140111 7 3020ND20.6 22.2 Benzene ug/L 20 102 60-140115 12 3020ND20.5 23.0 Bromobenzene ug/L 20 103 60-140111 7 3020ND20.6 22.1 Bromochloromethane ug/L 20 103 60-140118 13 3020ND20.6 23.6 Bromodichloromethane ug/L 20 99 60-140111 12 3020ND19.8 22.3 Bromoform ug/L 20 106 60-140118 11 3020ND21.2 23.6 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92681018 DOT'S PLACE TOO Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4103462MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92681011001 4103463 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromomethane ug/L 20 91 60-14099 8 3020ND18.2 19.8 Carbon tetrachloride ug/L 20 109 60-140121 10 3020ND21.8 24.2 Chlorobenzene ug/L 20 104 60-140112 7 3020ND20.8 22.4 Chloroethane ug/L 20 87 60-14097 12 3020ND17.3 19.4 Chloroform ug/L 20 98 60-140108 9 3020ND19.7 21.6 Chloromethane ug/L 20 85 60-14096 13 3020ND17.0 19.3 cis-1,2-Dichloroethene ug/L 20 99 60-140110 11 3020ND19.8 22.0 cis-1,3-Dichloropropene ug/L 20 101 60-140113 11 3020ND20.2 22.5 Dibromochloromethane ug/L 20 103 60-140114 10 3020ND20.6 22.8 Dibromomethane ug/L 20 110 60-140120 8 3020ND22.0 23.9 Dichlorodifluoromethane ug/L 20 95 60-140106 11 3020ND19.0 21.2 Diisopropyl ether ug/L 20 91 60-140106 15 3020ND18.1 21.1 Ethanol ug/L 800 85 60-14094 9 30800ND683 748 Ethyl-tert-butyl ether ug/L 40 86 60-14099 14 3040ND34.3 39.5 Ethylbenzene ug/L 20 102 60-140108 6 3020ND20.4 21.6 Hexachloro-1,3-butadiene ug/L M12012960-140148 14 3020ND25.7 29.6 Isopropylbenzene (Cumene)ug/L 20 108 60-140116 8 3020ND21.5 23.2 m&p-Xylene ug/L 40 102 60-140109 7 3040ND40.9 43.7 Methyl-tert-butyl ether ug/L 20 88 60-140102 15 3020ND17.7 20.5 Methylene Chloride ug/L 20 89 60-140102 13 3020ND17.9 20.3 n-Butylbenzene ug/L 20 115 60-140128 11 3020ND23.0 25.6 n-Propylbenzene ug/L 20 104 60-140114 9 3020ND20.8 22.8 Naphthalene ug/L 20 106 60-140119 12 3020ND21.1 23.8 o-Xylene ug/L 20 104 60-140112 7 3020ND20.7 22.3 sec-Butylbenzene ug/L 20 108 60-140122 12 3020ND21.6 24.4 Styrene ug/L 20 104 60-140111 7 3020ND20.7 22.2 tert-Amyl Alcohol ug/L 400 87 60-14099 13 30400ND347 395 tert-Amylmethyl ether ug/L 40 95 60-140107 12 3040ND38.0 43.0 tert-Butyl Alcohol ug/L 200 86 60-140104 19 30200ND172 208 tert-Butyl Formate ug/L 160 72 60-14071 1 30160ND115 114 tert-Butylbenzene ug/L 20 89 60-140101 13 3020ND17.7 20.2 Tetrachloroethene ug/L 20 113 60-140116 2 3020ND22.7 23.3 Toluene ug/L 20 100 60-140110 9 3020ND20.1 22.0 trans-1,2-Dichloroethene ug/L 20 102 60-140115 11 3020ND20.4 22.9 trans-1,3-Dichloropropene ug/L 20 99 60-140111 11 3020ND19.8 22.2 Trichloroethene ug/L 20 112 60-140123 9 3020ND22.4 24.5 Trichlorofluoromethane ug/L 20 101 60-140110 8 3020ND20.2 21.9 Vinyl chloride ug/L 20 79 60-14090 13 3020ND15.9 18.0 1,2-Dichloroethane-d4 (S) %91 70-13096 4-Bromofluorobenzene (S) %98 70-13096 Toluene-d8 (S)%98 70-13097 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92681018 DOT'S PLACE TOO Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 791790 EPA 504.1 EPA 504.1 GCS 504 EDB DBCP Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples: 92681018001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 4103039 Associated Lab Samples:92681018001 Matrix: Water AnalyzedMDL 1,2-Dibromoethane (EDB)ug/L <0.0056 0.020 08/07/23 15:140.0056 1-Chloro-2-bromopropane (S)%91 70-130 08/07/23 15:14 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4103040LABORATORY CONTROL SAMPLE & LCSD: LCSSpike LCSD % Rec RPD Max RPD LCSD Result 4103041 1,2-Dibromoethane (EDB)ug/L 0.260.25 104 70-130880.22 17 20 1-Chloro-2-bromopropane (S)%122 70-130102 Parameter Units MS Result % Rec Limits Qual% RecConc. 4103043MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92680612002 4103044 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,2-Dibromoethane (EDB) ug/L 0.24 92 65-13591 0 200.24ND 0.22 0.22 1-Chloro-2-bromopropane (S) %102 70-13099 Parameter Units Dup Result Max RPD QualifiersRPDResult 92680612001 4103042SAMPLE DUPLICATE: 1,2-Dibromoethane (EDB)ug/L <0.0055 20ND 1-Chloro-2-bromopropane (S)%108107 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 17 #=QL# QUALIFIERS Pace Project No.: Project: 92681018 DOT'S PLACE TOO DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 17 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92681018 DOT'S PLACE TOO Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92681018001 791790 791921WSW-8 EPA 504.1 EPA 504.1 92681018001 791870WSW-8 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 08/08/2023 04:52 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 17 Page 15 of 17 Page 16 of 17 Page 17 of 17