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HomeMy WebLinkAboutAS-3030_28254_CA_MRP_20231030 Via Email October 30, 2023 NC Department of Environmental Quality Division of Waste Management - Underground Storage Tanks 2090 U.S. 70 Highway Swannanoa, NC 28778 Attention: Ms. Katie Bernal, PG Re: Groundwater Monitoring Report NC DOT- Robbinsville Maintenance Facility 40 State Shed Road Robbinsville, North Carolina DEQ Incident No. 28254 H&H Job No. DOT-476 Dear Katie, On behalf of the NC DOT, please find the attached Groundwater Monitoring Report for the NC DOT Maintenance Facility located at 40 State Shed Road in Robbinsville, Graham County, North Carolina. If you have any questions, please do not hesitate to contact us. Sincerely, Hart & Hickman, PC David Graham, PG Matt Bramblett, PE Senior Project Geologist Principal Attachment Cc: Mr. Jeff Walston, NC DOT (via email) Ms. Jennifer Parish, NC DOT (via email) #C-1269 Engineering #-245 Geology Groundwater Monitoring Report NC DOT Maintenance Facility Robbinsville, North Carolina NC DEQ Incident Number: 28254 H&H Job No. DOT-476 October 30, 2023 Assessment Report Information Site Location: NC DOT Maintenance Facility 40 State Shed Road Robbinsville, North Carolina 28771 Property Owner: North Carolina Department of Transportation 4809 Beryl Road Raleigh, North Carolina 27606 Attn: Mr. Jeff Walston, PE (919) 707-2944 Consultant Information: Hart & Hickman, PC 2923 South Tryon Street, Suite 100 Charlotte, North Carolina 28203 Attn: Mr. David Graham, PG - Senior Project Geologist (704) 586-0007 General Site Information: NC DEQ Incident Number: 28254 Facility ID Number: 0-024661 NC DEQ Risk Classification: Intermediate Latitude/Longitude: 35o 19’13” / 83o 48’ 05” (Approximate) Release Discovery Date(s): August 26, 2004 Estimated Quantity of Release: Approximately 1,000 gallons Cause/Source of Release: One 5,700-gallon gasoline UST and one 5,700-gallon diesel UST i https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc Groundwater Monitoring Report NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Table of Contents Section Page No. 1.0 Introduction ............................................................................................................................ 1  2.0 Site History ............................................................................................................................. 2  3.0 Receptor Survey Information ............................................................................................... 6  4.0 Geology and Hydrogeology ................................................................................................... 7  4.1 Regional Geology and Hydrogeology ...................................................................................7  4.2 Site Geology and Hydrogeology ...........................................................................................8  5.0 Groundwater Monitoring ...................................................................................................... 9  5.1 Monitoring Wells and Water Levels .....................................................................................9  5.2 Sample Collection Procedures and Analyses ........................................................................9  5.3 Groundwater Sampling and Results ......................................................................................9  6.0 Surface Water Sampling ..................................................................................................... 11  6.1 Sample Collection Procedures and Analyses ......................................................................11  6.2 Surface Water Analytical Results ........................................................................................11  7.0 Summary and Certification ................................................................................................ 12  List of Tables Table 1 Summary of Adjacent Property Owner and Water Supply Well Information Table 2 Summary of Monitoring Well Construction Data and Water Level Elevations Table 3 Summary of Groundwater Analytical Results Table 4 Natural Attenuation Parameters - September 2023 Table 5 Summary of Surface Water Analytical Results ii https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc List of Figures Figure 1 Site Location Map Figure 2 Site Map Figure 3 Receptor Survey Map Figure 4 Shallow Groundwater Potentiometric Map Figure 5 Groundwater Sample Locations and Analytical Data Figure 6 Surface Water Sample Locations and Analytical Data List of Appendices Appendix A Laboratory Analytical Data Sheets Appendix B Groundwater Sampling Forms 1 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc Groundwater Monitoring Report NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 1.0 Introduction This monitoring report documents groundwater and surface water sampling performed by Hart & Hickman, PC (H&H) at the North Carolina Department of Transportation (NC DOT) maintenance facility located at 40 State Shed Road in Robbinsville, Graham County, North Carolina. Due to failing cathodic protection monitoring tests, a 5,700-gallon gasoline underground storage tank (UST) and a 5,700-gallon diesel UST were removed from the site by NC DOT on August 31, 2004. During excavation activities, the diesel product line leading to the dispenser island was broken and approximately 1,000 gallons of diesel fuel were released in the UST basin area. Approximately 3,900 gallons of fuel and water were then pumped from the UST basin. A site location map is provided as Figure 1, and a site map is included as Figure 2. Due to the presence of a surface water body (Tulula Creek) within 500 ft of the site and previously detected concentrations of petroleum constituents in groundwater that exceeded 10 times the 15A NCAC 2B Water Quality Standards for Surface Waters (2B Standards), the North Carolina Department of Environmental Quality (NC DEQ) risk classification for this incident is Intermediate (95D). The DEQ incident number is #28254. The environmental assessment work described in this report was conducted for NC DOT and included the following tasks:  Locating and gauging monitoring wells  Sampling monitoring wells MW-1 through MW-5 and DW-1  Sampling of Tulula Creek (Upstream, Edge of Bank, and Downstream)  Data Evaluation and Reporting 2 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc 2.0 Site History Due to failing cathodic protection monitoring tests, a 5,700-gallon gasoline UST and a 5,700- gallon diesel UST were removed from the site by NC DOT on August 31, 2004. During excavation activities on August 26, 2004, the diesel product line leading to the dispenser island was broken and approximately 1,000 gallons of diesel fuel were released. Approximately 3,900 gallons of fuel and water were then pumped from the UST basin using two 4-inch diameter basin wells. Nine soil samples (SS-1 through SS-9) were collected by NC DOT from the excavation sidewalls, adjacent to the dispenser line, and under the dispensers after UST removal activities on August 31, 2004. Due to the presence of shallow groundwater, soil samples were collected at depths ranging from 2.5 feet (ft) to 4 ft below ground surface (bgs). Bedrock was encountered in the former UST basin at a depth of approximately 12 ft bgs. Petroleum-related constituents were detected in UST closure soil samples above Soil to Water and/or Residential Maximum Soil Contaminant Concentrations (MSCCs). Petroleum-related constituents were also reported in a groundwater sample collected from the UST basin. Based on the results of UST closure activities, Limited Site Assessment (LSA) sampling activities were conducted at the site by H&H in 2005. Five Type II monitoring wells (MW-1 through MW-5) and one Type III monitoring well (DW-1) were installed during LSA activities. Concentrations of petroleum constituents above the NC DEQ 15A NCAC 2L.0202 Groundwater Quality Standards (2L Standards) were detected in the monitoring wells. As noted above, concentrations of petroleum constituents detected in groundwater samples collected at the site also exceeded 10 times the 2B Standards. In a NC DEQ Notice of Regulatory Requirements (NORR) letter dated January 19, 2021 and a follow up email request dated June 30, 2022, NC DEQ requested a comprehensive groundwater sampling event and an updated receptor survey be conducted to evaluate current risks associated with the site. No assessment activities had been conducted at the site since completion of the LSA in 2005. Per NC DEQ’s request, H&H conducted an updated receptor survey and comprehensive groundwater sampling event in September 2022. Concentrations of benzene and 3 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc naphthalene were detected above NC 2L standards in MW-1 but did not exceed 10 times the 2B Surface Water standards. No other volatile organic compounds (VOCs) or semi-VOCs (SVOCs) were detected above the 2L Standards or 10 times Surface Water standards in groundwater samples collected from monitoring wells at the site. Groundwater concentrations have decreased significantly in monitoring wells MW-1 through MW-4 and DW-1 since the 2005 sampling event. Results of the September 2022 sampling event are documented in H&H’s Groundwater Monitoring Report dated December 19, 2022. Although target concentrations were low in September 2022, only two groundwater sampling events had been conducted at the site. Based on the groundwater sampling results, H&H recommended one additional sampling event be completed at the site in March 2023. NC DEQ agreed with H&H’s recommendations in an Acknowledgement of Report Receipt letter dated January 10, 2023. Depending on the March 2023 sampling results (above 2L Standards and below 10 times Surface Water standards), DEQ indicated that the Robbinsville Maintenance facility Incident may be eligible for risk-based closure by filing a Notice of Residual Petroleum (NRP) on the deed for the property. A groundwater use restriction would be required on the NRP. NC DEQ also indicated a residential land use restriction would be required on the NRP because soil impacts previously exceeded the Residential MSCCs. To achieve unrestricted closure for the site (no NRP for land use and/or groundwater), groundwater impacts would need to be below the 2L Standards and soil impacts would need to be less than Residential MSCCs. Based on conversations between H&H and NC DOT, a groundwater use restriction is acceptable if a NRP is required for Incident closure. However, H&H understands that NC DOT would like to close out the site without a residential land use restriction on the NRP, if possible. Based on discussions between H&H and Ms. Katie Bernal, NC DEQ Incident Manager for the NC DOT Robbinsville Maintenance facility, additional soil sampling activities would be required to achieve incident closure without a residential land use restriction on the NRP. H&H reviewed the soil analytical data in the 2005 LSA which indicated the presence of Massachusetts Department of Environmental Protection (MADEP) volatile petroleum hydrocarbons (VPH) and extractable petroleum hydrocarbons (EPH) and/or naphthalene above the Residential MSCCs at previous soil sample locations SS-8 (3.5 ft) and SS-9 (3.5 ft). The unrestricted use standard for 4 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc soil is the Residential MSCCs. Based on the above historical soil results, H&H conducted soil sampling activities in March 2023 to evaluate if soil impacts near SS-8 and SS-9 remain above Residential screening levels. Concentrations of target petroleum constituents were detected in the soil samples collected adjacent to former sample locations SS-8 and SS-9 in March 2023. Concentrations of total C9- C22 Aromatics and naphthalene were detected above the Residential MSCCs in soil sample SS- 9. Concentrations of other target petroleum constituents were also detected in SS-8 and SS-9 above the Soil-to-Water MSCCs. Analytical results of groundwater samples collected from monitoring wells in March 2023 indicated concentrations of benzene, naphthalene, and MADEP EPH and VPH in MW-1 above the 2L Standards. Low-level concentrations of other petroleum-related VOCs and/or SVOCs were also detected in MW-1, MW-2, MW-3, and MW-4 below 2L Standards. Concentrations of VOCs and SVOCs remained relatively stable between the September 2022 and March 2023 sampling events. However, a concentration of 1-methylnaphthalene was detected in MW-1 above 10 times surface water criteria. The concentration of 1-methylnaphthalene was detected in MW-1, which is located upgradient and approximately 230 ft away from Tulula Creek. No concentrations of 1-methylnapthalene were detected in monitoring wells MW-3 and MW-4 located downgradient of MW-1 and approximately 60 to 70 ft upgradient of the stream in March 2023. Although the site may qualify as high risk, H&H requested that NC DEQ consider Incident closure because water supply wells are approximately 900 ft away and Tulula Creek is approximately 200 to 250 ft away from groundwater impacts above standards. H&H recommended completing an NRP for incident closure in accordance with NC DEQ guidelines. Because soil concentrations are above Residential MSCCs, a residential land use restriction would be required on the NRP to obtain a No Further Action (NFA) requested letter. The NRP would consist of language specifying perpetual land use restrictions that restrict both residential use and groundwater use at the site. In NC DEQ NORR letter dated June 13, 2023, NC DEQ requested a comprehensive groundwater 5 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc sampling event be conducted in September 2023. In addition to the groundwater sampling, NC DEQ requested that surface water samples be collected from Tulula Creek to evaluate the potential for surface water impacts due to the concentration of 1-methylnaphthalene above 10 times surface water criteria in MW-1. The September 2023 groundwater and surface water sampling activities are described below. 6 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc 3.0 Receptor Survey Information No water supply wells were identified within a 1,500 ft radius of the site during LSA activities in 2005. Municipal water is supplied to occupied properties within the site area including the subject property. H&H identified one surface water body (Tulula Creek) located adjacent to the site, approximately 200 ft west of the former dispenser area and 250 ft west of the former UST basin area. Tulula Creek is classified as a Water Supply Class III (WS-III) and Trout Water (Tr). On September 8, 2022, H&H conducted an updated receptor survey for surrounding properties within 1,500 ft of the source area at the site. Prior to conducting the survey, H&H contacted the Town of Robbinsville water department to verify water usage in the area. H&H confirmed that municipal water is available to properties within a 1,500 ft radius of the site. As part of the receptor survey update, H&H performed driving and walking reconnaissance of the site area to observe for evidence of water supply wells. H&H also distributed approximately 18 NC DEQ Request for Water Supply Well Information forms to property owners within a 500 ft radius of the release area via hand delivery and/or via US Mail. During the receptor survey, H&H spoke with a neighbor of the property owner at 209 Old Tallulah Road located approximately 900 ft southeast of the site. The neighbor indicated a water supply well may be located on the 209 Old Tallulah Road property. H&H hand delivered the Request for Water Supply Well Information form to the 209 Old Tallulah Road address. The form was returned to H&H and indicated that two water supply wells (WS-1 and WS-2) were installed approximately five years ago and provide water to three residences at 209 and 240 Old Tallulah Road. The wells are also used for livestock. H&H did not observe the water supply wells during the receptor survey and was not able to contact the owner to confirm the well locations. As such, the well locations are estimated at the two property addresses noted above (see Figure 3). Six NC DEQ Request for Water Supply Well Information forms were returned to H&H and did not indicate the presence of water supply wells. Other than WS-1 and WS-2, water supply wells were not identified during the receptor survey update. Adjacent property owners and water supply wells owner in the area are included in Table 1. 7 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc 4.0 Geology and Hydrogeology 4.1 Regional Geology and Hydrogeology According to the North Carolina Geological Survey 1985 Geologic Map of North Carolina, the site area is located in the Blue Ridge Belt of the Blue Ridge Physiographic Province of North Carolina. According to the geologic map, the basement rocks in the site area are composed of metasandstone, metagraywacke, metasiltstone, and mica schist. In the Blue Ridge, bedrock is overlain by a mantle of weathered rock or saprolite. The saprolite consists of unconsolidated clay, silt, and sand with lesser amounts of rock fragments. Due to the range of parent rock types and their variable susceptibility to weathering, the saprolite ranges widely in color, texture, and thickness. Generally, the saprolite is thickest near interstream divides and thins toward stream beds. In profile, the saprolite normally grades from clayey soils near the land surface to highly weathered rock above competent bedrock. The occurrence and movement of groundwater in the Blue Ridge is within two separate but interconnected water-bearing zones. A shallow water-bearing zone occurs within the saprolite, and a deeper water-bearing zone occurs within the underlying bedrock. Groundwater in the shallow saprolite zone occurs in the interstitial pore spaces between the grains comprising the saprolite soils. Groundwater in this zone is typically under water table or unconfined conditions. Groundwater movement is generally lateral from recharge areas to small streams which serve as localized discharge points. The occurrence and movement of groundwater in underlying bedrock is controlled by secondary joints, fractures, and faults within the bedrock. On a regional scale, the direction of groundwater flow is typically from uplands to major streams and groundwater sinks. The saprolite has a higher porosity than the bedrock and serves as a reservoir which supplies water to a network of fractures in the bedrock. 8 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc 4.2 Site Geology and Hydrogeology Based on field observations during LSA activities by H&H in 2005, the site is generally composed of surficial fill and alluvial soils consisting of tan-brown to brownish red sandy silts and silty clays. Metasandstone bedrock was encountered below the soils at approximately 11 to 13 ft bgs. An alluvial layer of well-rounded pebbles and cobbles with abundant groundwater is present just above bedrock. The pebbles and cobbles are assumed to be present from previous meanders of Tulula Creek. Larger mica schist boulders were also encountered above the bedrock. The boulders were encountered at depths ranging from three to eight ft below ground surface. H&H installed five shallow monitoring wells (MW-1 through MW-5) and one deeper monitoring well (DW-1) at the site during LSA activities in January 2005. After installation, the top of casing elevations of the monitoring wells were referenced to a common, but arbitrary, datum using surveying techniques. These same wells were gauged and sampled in September 2023. The depth to groundwater at the site is approximately 5 ft bgs. H&H prepared a potentiometric map based on groundwater elevations referencing an arbitrary datum. Based on the potentiometric map, the shallow groundwater flow direction is generally to the west towards Tulula Creek (Figure 4). 9 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc 5.0 Groundwater Monitoring 5.1 Monitoring Wells and Water Levels Six monitoring wells (MW-1 through MW-5 and DW-1) were sampled on September 18 and 19, 2023. The monitoring wells appeared to be in good condition. Monitoring well construction information is provided in Table 2. An electronic water level indicator was used to record the static water levels in the six existing monitoring wells. The depths to water in shallow monitoring wells ranged from 5.10 ft (MW-5) to 5.74 ft (MW-1) below the monitoring well top of casings. The estimated potentiometric surface from September 2023 is depicted on Figure 4. As shown on Figure 4, the potentiometric surface slopes to the west towards Tulula Creek. 5.2 Sample Collection Procedures and Analyses Laboratory supplied sample containers were used for sample collection. A chain-of-custody record was completed for samples collected and included sample description, date collected, time collected, matrix, sample container information, and analyses required. The sample containers were placed in a cooler with ice and submitted to Waypoint Analytical (Waypoint) for laboratory analysis of VOCs by Standard Method for the Examination of Water and Wastewater 6200B and SVOCs by EPA Method 625 (base/neutral and acid extractables) Laboratory analytical data sheets are provided in Appendix A, and analytical results are summarized in Table 3. 5.3 Groundwater Sampling and Results After monitoring wells were gauged for depth to water, the wells were sampled using low-flow sampling techniques with a peristaltic pump. During well purging, measurements of pH, conductivity, temperature, dissolved oxygen (DO), oxidation reduction potential (ORP), and turbidity were collected. The wells were purged until field parameters stabilized, and turbidity levels were below 10 Nephelometric Turbidity Units (NTUs), if possible. Upon stabilization, a groundwater sample was collected for laboratory analysis. Field parameter data are provided in 10 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc Table 4. Groundwater sampling forms are included in Appendix B. Based on laboratory analytical results, concentrations of benzene (5.07 ug/L), naphthalene (9.69 ug/L), and 1-methylnaphthalene (7.53 ug/L) were detected in MW-1 above the 2L Standards of 1.0 ug/L, 6.0 ug/L and 1.0 ug/L, respectively. Low-level concentrations of other petroleum- related VOCs and SVOCs were also detected in MW-1 and MW-4 below the 2L Standards. The groundwater concentrations noted above were also compared to the 2B Standards. The nearest groundwater discharge is to Tulula Creek which is classified as a Water Supply Class III (WS-III) and a Trout Water (Tr) surface water. Based on the classification of the receiving water body downgradient of the site, concentrations detected in groundwater were compared to the lower criteria applicable for WS III/Tr or Class C (All Water) surface water. Per NC Division of Water Resources (DWR) guidance (NC DWR Surface Water Quality Standards, Criteria & In- Stream Target Values table, July 2021), if no 2B Standards exist for certain compounds, concentrations were also compared to the lower of the EPA National Recommended Water Quality Criteria or NC In-Stream Target Values. Based on this comparison, no compounds were detected at a concentration 10 times the surface water criteria during the most recent sampling event. Concentrations of VOCs and/or SVOCs have significantly decreased in monitoring wells MW-1 through MW-4 and DW-1 since the 2005 sampling event. For example, benzene decreased from 320 µg/L in 2005 to 5.07 µg/L in 2023 in MW-1. VOCs and/or SVOCs previously detected in wells MW-2 through MW-4 and DW-1 were not detected or were detected at concentrations below their respective 2L Standards. The absence of impacts has remained consistent in upgradient monitoring well MW-5 over time. Historical groundwater monitoring data are provided in Table 3. Key contaminant concentrations in groundwater are depicted on Figure 5. 11 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc 6.0 Surface Water Sampling 6.1 Sample Collection Procedures and Analyses H&H collected three surface water samples from Tulula Creek located to the west and downgradient of the site. At NC DEQ’s request, the surface water samples were collected at one upstream location (Upstream), one edge of bank location (Edge of Bank) and one downstream location (Downstream). The Edge of Bank sample was between the Upstream and Downstream sample locations. NC DEQ also requested that samples be collected near seeps flowing from the site if identified in Tulula Creek. No potential flowing seeps were identified by H&H during the surface water sampling activities. Surface water sample locations are shown on Figure 6. Surface water samples were collected using a decontaminated stainless-steel scoop in a manner to avoid re-suspension of bottom deposits. At each location, surface water quality parameters including temperature, pH, conductivity, DO, ORP, and turbidity were measured. Geochemical field parameters are included in Table 4. Surface water samples were placed directly into dedicated laboratory-supplied sample bottles, labeled, and placed on ice in an insulated cooler. A chain-of-custody record was completed and included sample description, analyses required, matrix, sample container information, and date and time of sample collection. The sample containers were submitted to Waypoint for laboratory analysis of VOCs and SVOCs. The laboratory analytical report and chain-of-custody record are provided in Appendix A, and analytical results are summarized in Table 5. 6.2 Surface Water Analytical Results Based on laboratory analytical results, no VOCs or SVOCs were detected above the laboratory method detection limits in the surface water samples collected from Tulula Creek. 12 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Report/AS_3030_28254_MRP_20231030_Monitoring Report.doc 7.0 Summary and Certification Groundwater and surface water sampling activities were conducted at the NC DOT Maintenance Facility in Robbinsville, North Carolina in September 2023. The findings are summarized below.  Analytical results of groundwater samples collected from monitoring wells at the site indicate concentrations of benzene, naphthalene, and 1-methylnapthalene above 2L Standards in MW-1. Low-level concentrations of other petroleum-related VOCs and/or SVOCs were also detected in MW-1 and MW-4 below the 2L Standards. Concentrations of VOCs and SVOCs have significantly decreased in monitoring wells MW-1 through MW-4 and DW-1 since the 2005 sampling event and have remained relatively stable or decreased since the September 2022 sampling event. No groundwater concentrations exceed 10 times surface water criteria.  No VOCS or SVOCs were detected in the three surface water samples collected from Tulula Creek located to the west and downgradient of the site. H&H recommends one additional semi-annual sampling event for monitoring wells at the site in March 2024. Incident closure should be considered if target petroleum constituents are below 10 times surface water criteria in monitoring wells at the site for two consecutive monitoring events. If DEQ is willing to close the incident, H&H recommends completing the NRP for incident closure in accordance with NC DEQ guidelines. Because soil concentrations have been detected above Residential MSCCs, a residential land use restriction will be required on the NRP to obtain a No Further Action (NFA) requested letter. The NRP will consist of language specifying perpetual land use restrictions that restrict both residential use and groundwater use at the site. Table 1 (Page 1 of 1) Summary of Adjacent Property Owner and Water Supply Well Information NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Depth Use 568100EX0004 Site 40 State Shed Road NC Dept of Transportation 1275 Old Sweetwater Rd Robbinsville, NC 28771 NA NA NA NA NA NA NA 568100000004PT A 92 Five Point Road Southeast Bulk, LLC 7014 A.C. Skinner Parkway Jacksonville, FL 32256 Northeast NA NA NA NA NA NA NA B State Shed Road NC Dept of Transportation 1275 Old Sweetwater Rd Robbinsville, NC 28771 East NA NA NA NA NA NA 5588000014600T C 88 State Shed Road Adams Contracting P.O. Box 1157 Robbinsville, NC 28771 South NA NA NA NA NA NA 56601620000201 D 77 Tallulah Road Colvard Family Trust 420 Snug Harbor Dr Meritt Island Fl, 32953 Southwest NA NA NA NA NA NA 5660162000021/ 559800005290 E Tallulah Road/32 Five Point Rd Tony Cody & William Adams P.O. Box 218 Robbinsville, NC 28771 West/Northwest NA NA NA NA NA NA 566016200001 F HWY 129 Five Point Rd Adams Contracting Co.P.O. Box 1157 Robbinsville, NC 28771 North NA NA NA NA NA NA 557900030010/ 557900030006*NA 209/240 Old Tallulah Road Richard & Nancy Brooks 209 Old Tallulah Rd Robbinsville, NC 28771 Southeast WS-1/WS-2 340 ft Drinking/ Livestock Yes Supplies water to three residences at 209 and 240 Old Tallulah Rd 900 ft Notes: * = The property owner provided information that indicated WS-1 and WS-2 supplies water to three residences located at 209 and 240 Old Tallulah Road. The locations of WS-1 and WS-2 are unknown and are esitmated on 209 and 240 Tallulah Road, respectively (Figure 3). NA = not applicable Confirmed Well Usage (September 2022) Additional Well Information Approximate Distance of Well From Source Area of Release (ft) Well Details Parcel ID No. Map No. (Adjacent Parcel) Property Address Owner Owner Mailing Address Direction From Site Water Supply Well ID https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Tables/GW Tables 10/24/2023 Table 1 (Page 1 of 1) Hart & Hickman, PC Table 2 (Page 1 of 1) Summary of Monitoring Well Construction Data and Water Level Elevations NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Well ID Sampling Date Top of Casing Elevation (ft) Depth To Water (ft below TOC) Groundwater Elevation (ft) Well Casing Diameter (inches) Screen Interval (ft bgs) Depth of Well (ft bgs) 1/20/2005 5.27 93.70 9/6/2022 5.21 93.76 3/20/2023 4.60 94.37 9/18/2023 5.74 93.23 1/20/2005 4.62 94.01 9/6/2022 4.71 93.92 3/20/2023 4.07 94.56 9/18/2023 5.18 93.45 1/20/2005 5.07 93.34 9/6/2022 5.29 93.12 3/20/2023 4.85 93.56 9/18/2023 5.68 92.73 1/20/2005 4.57 93.07 9/6/2022 4.70 92.94 3/20/2023 4.39 93.25 9/18/2023 5.22 92.42 1/20/2005 4.37 95.43 9/6/2022 4.53 95.27 3/20/2023 3.45 96.35 9/18/2023 5.10 94.70 1/20/2005 5.25 94.02 9/6/2022 5.31 93.96 3/20/2023 4.65 94.62 9/18/2023 5.91 93.36 Notes: Top of casing (TOC) elevations referenced from an arbitrary benchmark of 100 ft. Wells installed by H&H on January 18 and 19, 2005. ft bgs = feet below ground surface * DW-1 is a Type III monitoring well with surface casing to 28 ft. MW-5 DW-1* MW-1 98.97 MW-2 MW-3 MW-4 98.63 98.41 97.64 99.80 99.27 50 2-12 2-12 2-12 2-12 2-12 40-50 12 12 12 12 12 2 2 2 2 2 2 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Tables/GW Tables 10/24/2023 Table 2 (Page 1 of 1) Hart & Hickman, PC Table 3 (Page 1 of 1) Summary of Groundwater Analytical Results NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Ac e t o n e Be n z e n e n-B u t y l b e n z e n e se c - B u t y l b e n z e n e Et h y l b e n z e n e Is o p r o p y l b e n z e n e (C u m e n e ) Is o p r o p y l E t h e r ( I P E ) Me t h y l t e r t - b u t y l e t h e r (M T B E ) 4-M e t h y l - 2 - P e n t a n o n e Me t h y l e n e C h l o r i d e Na p h t h a l e n e n-P r o p y l b e n z e n e To l u e n e Tr i c h l o r o e t h y l e n e 1,2 , 4 - T r i m e t h y l b e n z e n e 1,3 , 5 - T r i m e t h y l b e n z e n e To t a l X y l e n e s Ac e n a p h t h e n e Be n z o i c A c i d Bis ( 2 - e t h y l h e x y l ) p h t h a l a t e Bu t y l b e n z y l p h t h a l a t e Dib e n z o f u r a n Die t h y l p h t h a l a t e Flu o r e n e 1-M e t h y l n a p h t h a l e n e 2-M e t h y l n a p h t h a l e n e Na p h t h a l e n e Ph e n a n t h r e n e VP H C 5 - C 8 A l i p h a t i c s VP H C 9 - C 1 2 A l i p h a t i c s EP H C 9 - C 1 8 A l i p h a t i c s To t a l C 9 - C 1 8 A l i p h a t i c s EP H C 1 9 - C 3 6 A l i p h a t i c s VP H C 9 - C 1 0 A r o m a t i c s EP H C 1 1 - C 2 2 A r o m a t i c s To t a l C 9 - C 2 2 A r o m a t i c s 1/20/2005 NA 320 34 8.4 150 27 32 690 NA <20 100 91 300 <5.0 79 22 370 <1.8 NA <9.7 <9.7 <2.1 <9.7 5.4 J NA <1.7 75 3.7 J 1,400 280 100 380 <31 1,300 1,000 2,300 9/7/2022 <1.80 11.7 7.18 7.74 1.95 12.5 2.52 <0.140 <0.078 <0.330 21.2 32.7 0.488 J <0.180 <0.190 <0.180 2.25 J <7.12 <11.5 <8.80 <4.53 <5.08 <9.35 <7.27 NA NA <7.88 <6.34 NA NA NA NA NA NA NA NA 3/21/2023 <18.0 8.36 10.7 10.7 3.38 J 14.5 <5.00 <1.40 <0.780 <3.30 30.3 42.5 <2.20 <1.80 <1.90 <1.80 <2.1 1.39 J <1.11 <3.49 <1.84 1.30 J <0.749 3.68 16.1 9.94 12.7 2.70 758 512 70.5 J 582.5 J <124 229 728 957 9/19/2023 <1.80 5.07 4.66 6.74 0.607 8.75 0.730 <0.140 <0.078 0.568 J 9.69 21.4 0.338 J <0.180 <0.190 <0.180 1.31 J 0.887 J <1.10 <3.46 <1.83 <0.856 <0.745 2.06 7.53 2.27 3.27 1.81 J NA NA NA NA NA NA NA NA 1/20/2005 NA 25 4.4 1.3 5.0 4.4 1.9 32 NA <2.0 38 11 2.4 <0.5 0.58 <0.50 1.88 <1.8 NA <9.7 <9.7 <2.1 <9.7 3.3 J NA <1.7 34 3.0 J 83 J 110 510 620 <31 150 770 920 9/7/2022 1.82 J <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <11.5 <8.80 <4.53 <5.08 <9.35 <7.27 NA NA <7.88 <6.34 NA NA NA NA NA NA NA NA 9/7/2022 (Dup)<1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 NA <11.5 NA NA NA <9.35 NA NA NA NA NA NA NA NA NA NA NA NA NA 3/21/2023 <1.80 0.848 <0.180 0.325 J <0.170 0.988 <0.500 <0.140 <0.078 <0.330 <0.470 1.97 <0.220 <0.180 <0.190 <0.180 <0.21 <0.303 <1.11 <3.49 <1.84 <0.861 <0.749 <0.811 <1.15 <0.669 <0.731 <0.430 <11.5 34.6 J <28.2 34.6 J <124 <4.02 61.2 J 61.2 J 9/19/2023 <1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <0.453 <1.65 <5.19 <2.75 <1.28 4.26 J <1.21 <1.71 <0.999 <1.09 <0.642 NA NA NA NA NA NA NA NA 1/20/2005 NA 0.95 2.1 0.59 <0.5 <0.5 1.3 37 NA <2.0 <0.5 0.58 <0.5 <0.5 1.5 0.96 3.0 <1.8 NA <9.7 <9.7 <2.1 <9.7 <9.7 NA <1.7 <9.7 <9.7 <75 <70 <75 ND <31 <35 <71 ND 9/7/2022 <1.80 <0.180 <0.180 0.456 J <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <11.5 <8.80 <4.53 <5.08 <9.35 <7.27 NA NA <7.88 <6.34 NA NA NA NA NA NA NA NA 3/21/2023 <1.80 <0.180 <0.180 1.21 <0.170 <0.180 1.10 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 0.562 J <1.11 <3.49 <1.84 <0.861 <0.749 0.921 J <1.15 <0.669 <0.731 <0.430 NA NA NA NA NA NA NA NA 9/18/2023 <1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <0.302 <1.10 <3.46 <1.83 <0.856 3.54 J <0.807 <1.14 <0.666 <0.728 <0.428 NA NA NA NA NA NA NA NA 1/20/2005 NA 5.6 7.6 0.96 5.5 1.4 6.3 34 NA <2.0 8.9 5.4 3.0 <0.5 9.5 6.2 28.8 <3.7 NA 120 15 J <4.3 <19 <19 NA <3.5 17 J 4.9 J <75 <70 550 550 9,700 180 2,600 2,780 9/7/2022 1.90 J <0.180 <0.180 0.376 J <0.170 <0.180 0.614 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <11.5 <8.80 <4.53 <5.08 <9.35 <7.27 NA NA <7.88 <6.34 NA NA NA NA NA NA NA NA 3/20/2023 <1.80 <0.180 <0.180 0.428 J <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 0.602 J <1.11 <3.49 <1.84 <0.861 <0.749 <0.811 <1.15 <0.669 <0.731 <0.430 41.8 J 47.4 J 29.3 J 76.7 J <124 9.91 J 139 J 148.91 J 9/18/2023 <1.80 <0.180 <0.180 0.242 J <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 0.591 J 4.54 J <3.46 <1.83 <0.856 2.49 J <0.807 <1.14 <0.666 <0.728 <0.428 NA NA NA NA NA NA NA NA 1/20/2005 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA <2.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <1.5 <1.8 NA <9.7 <9.7 <2.1 <9.7 <9.7 NA <1.7 <9.7 <9.7 <75 <70 <75 ND <31 <35 <71 ND 9/6/2022 <1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <11.5 <8.80 <4.53 <5.08 <9.35 <7.27 NA NA <7.88 <6.34 NA NA NA NA NA NA NA NA 3/20/2023 <1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <0.303 <1.11 <3.49 <1.84 <0.861 <0.749 <0.811 <1.15 <0.669 <0.731 <0.430 NA NA NA NA NA NA NA NA 9/18/2023 <1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <0.302 <1.10 <3.46 <1.83 <0.856 5.15 <0.807 <1.14 <0.666 <0.728 <0.428 NA NA NA NA NA NA NA NA 1/20/2005 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA <2.0 <0.5 <0.5 <0.5 1.9 <0.5 <0.5 <1.5 <1.8 NA <9.7 <9.7 <2.1 <9.7 <9.7 NA <1.7 <9.7 <9.7 <75 <70 <75 ND <31 <35 <71 ND 9/7/2022 <1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 0.712 J <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <11.5 <8.80 <4.53 <5.08 <9.35 <7.27 NA NA <7.88 <6.34 NA NA NA NA NA NA NA NA 3/21/2023 <1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <0.303 <1.11 <3.49 <1.84 <0.861 <0.749 <0.811 <1.15 <0.669 <0.731 <0.430 NA NA NA NA NA NA NA NA 9/19/2023 <1.80 <0.180 <0.180 <0.200 <0.170 <0.180 <0.500 <0.140 <0.078 <0.330 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <0.302 <1.10 <3.46 <1.83 <0.856 11.9 <0.807 <1.14 <0.666 <0.728 <0.428 NA NA NA NA NA NA NA NA 6,000 1 70 70 600 70 70 20 100 5 6 70 600 3 400 400 500 80 30,000 3 1,000 28 6,000 300 1 30 6 200 400 NS NS 700 10,000 NS NS 200 6,000,000 5,000 5,900 8,800 80,000 30,500 70,000 20,000 100,000 5,000 6,000 26,100 260,000 3,000 28,500 24,100 50,000 1,950 1,700,000 135 NS 1,550 NS 845 1,000 12,000 6,000 550 NS NS NS NS NS NS NS NS 20,000 11.9 39 NS 680 2,500 200,000 190 28,000 200 120 800 3.6 25 3,900 1,300 4,500 290 900,000 3.2 1 NS 6,000 300 8 850 120 3 1,250 1,800 1,800 1,800 2,100 NS NS NS Notes: 1) North Carolina Department of Environmental Quality (NC DEQ) 15A NCAC 02L.0202 Groundwater Quality Standards (2L Standards) dated April 2022. Groundwater Interim Maximum Allowable Concentration (IMAC) (dated November 2022) used if 2L Standard not available. 2) NC DEQ Gross Contamination Levels (GCL) for Groundwater dated September 2022. 3) NC 15A NCAC 02B.0202 Surface Water Quality Standards (2B Standards) for Class WS III/Tr or Class C (All waters) surface waters dated July 2021. If no standard exists, the lower of EPA Recommended Water Quality Criteria for Aquatic Life & Human Health or NC In-Stream Target Values for Surface Water - Class WS III/Tr or Class C (All waters) (July 2021) was used. The nearest discharge is to a Class WS III/Tr surface water body (Tulula Creek). Based on the classification of the receiving water body, surface water standards and criteria are based on Class WS III/Tr or Class C (All waters) surface water standards. Bold indicates above 2L Standard. Underline exceeds 10 X Surface Water Criteria. Only those compounds detected in at least one sample shown above. µg/L = micrograms per liter; Dup = duplicate VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; NA = not analyzed; ND = not detected; NS = not specified VPH = volatile petroleum hydrocarbons; EPH = extractable petroleum hydrocarbons; MADEP = Massachusetts Department of Environmental Protection Laboratory analytical methods are shown in parentheses. J = Estimated value between the laboratory reporting limit and the method detection limit. MW-5 2L Standard (1) 10 X Surface Water Criteria (3) GCL (2) DW-1 VPH/EPH (MADEP) µg/L SVOCs (625.1) µg/L VOCs (6200B) MW-3 MW-4 Sa m p l e I D Sa m p l e D a t e µg/L MW-1 MW-2 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Tables/GW Tables 10/27/2023 Table 3 (Page 1 of 1) Hart & Hickman, PC Table 4 (Page 1 of 1) Natural Attenuation Parameters - September 2023 NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Sample ID pH (SU) Conductivity (µS/cm)Temperature (ºC)ORP (mV) Dissolved Oxygen (mg/L) Turbidity (NTU) MW-1 6.60 527 25.3 -123.3 0.15 0.78 MW-2 5.76 221.1 22.2 108.4 1.16 0.97 MW-3 6.32 326.3 22.5 -79.2 0.13 1.34 MW-4 6.06 589.0 24.3 -68.2 0.15 0.50 MW-5 6.02 349.1 25.5 5.1 0.13 0.49 DW-1 7.51 205.4 21.5 -181.6 0.16 2.41 Upstream 7.17 32.1 16.7 -19.3 7.62 2.68 Edge of Bank 7.26 32.5 16.1 -18.4 7.42 2.33 Downstream 7.30 34.1 16.5 -43.2 8.91 4.12 Notes: SU = Standard Units µS/cm = microsiemens per centimeter ºC = degrees Celsius mg/L = milligrams per liter ORP = oxidation-reduction potential mV = millivolts NTU = nephelometric turbidity units https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Tables/GW Tables 10/24/2023 Table 4 (Page 1 of 1) Hart & Hickman, PC Table 5 (Page 1 of 1) Summary of Surface Water Analytical Results NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Surface Water Sample ID Upstream Edge of Bank Downstream Sample Date 9/19/2023 9/19/2023 9/19/2023 Units VOCs (6200B)BDL BDL BDL -- -- SVOCs (625.1)BDL BDL BDL -- -- Notes: 1) North Carolina 15A NCAC 02B.0202 Surface Water Quality Standards (2B Standards) for Class WS III/Tr or Class C (All waters) surface waters dated July 2021. 2) Lower of EPA National Recommended Water Quality Criteria for Aquatic Life & Human Health or NC In-Stream Target Values for Surface Waters - Class WS III/Tr or Class C (All waters) (July 2021). Laboratory analytical methods are shown in parentheses. VOCs = volatile organic compounds; SVOCs = semi-volatile organic compounds; -- = not applicable BDL = All compounds are below laboratory detection limit. µg/L Tulula Creek (West of Site Property Boundary) Screening Criteria NC 2B Standards (1)Water Quality Criteria (2) https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 - 09 GW Report/Tables/GW Tables 10/27/2023 Table 5 (Page 1 of 1) Hart & Hickman, PC USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed April, 2023. SITE LOCATION MAP NC DOT MAINTENANCE FACILITY40 STATE SHED ROADROBBINSVILLE, NORTH CAROLINA DATE: 10-16-23 JOB NO: DOT-476 REVISION NO: 0 FIGURE NO: 1 2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology TITLE PROJECT 0 2,000 4,000 SCALE IN FEET SITE Pa t h : S : \ A A A - M a s t e r P r o j e c t s \ N C D O T - D O T \ D O T - 4 7 6 R o b b i n s v i l l e \ F i g u r e s \ F i g u r e 1 . m x d N U.S.G.S. QUADRANGLE MAP ROBBINSVILLE, NORTH CAROLINA 2022 QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC) ST A T E S H E D R O A D FIVE POINTS ROA D OFFICE FO R M E R 1 0 , 0 0 0 G A L A S T s MAINTENAN C E SHOP TRUCK STORAG E SHED GRAVEL PARKING SOUTHEAST ENERGY (BULK FACILITY) SW E E T G U M R D . ( O L D T A L L U L A H R D . ) VACANT/UNOCCUPIED EQUIPME N T STORAGE NC DOT ADDITIONAL STORAGE YARD GRAVEL STOCKPILE GRAVEL STOCKPILE MW-4 MW-3 MW-1 DW-1 MW-5 FORMER LOCATION OF LIQUID ASPHALT AST FORMER LIQUID ASPHALT AST OIL/WATER SEPARATOR WASH PAD SALT SPREADER STORAGE RACK MW-2 TU L U L A C R E E K STORAGE UNITS TA L L U L A H R O A D ( H W Y 1 2 9 ) EQUIPMENT STORAGE AREA CANOPY W-2 FORMER 5,700-GAL GASOLINE UST AND 5,700-GAL DIESEL UST BASIN SALT SPREADER HANG RACK FORMER PRODUCT PIPING REVISION NO. 1 JOB NO. DOT-476 DATE: 10-16-23 FIGURE NO. 2 NC DOT MAINTENANCE FACILITY 40 STATE SHED ROAD ROBBINSVILLE, NORTH CAROLINA SITE MAP 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology LEGEND SITE PROPERTY BOUNDARY PARCEL BOUNDARY LINE SURFACE WATER FEATURE FENCE WATER LINE SEWER LINE SEWER MANHOLE FORMER USED OIL UST FORMER AST FUEL DISPENSERS SHALLOW MONITORING WELL DEEP MONITORING WELL UST OBSERVATION WELL NOTES: 1.PARCEL DATA OBTAINED FROM GRAHAM COUNTY GIS, 2023. 2.UST = UNDERGROUND STORAGE TANK AST = ABOVEGROUND STORAGE TANK S: \ A A A - M a s t e r P r o j e c t s \ N C D O T - D O T \ D O T - 4 7 6 R o b b i n s v i l l e \ R e p o r t s \ 2 0 2 3 - 0 9 G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ 2 0 2 3 1 0 0 5 . d w g , F I G 2 , 1 0 / 2 4 / 2 0 2 3 7 : 5 2 : 5 8 A M , s h a y n e s REVISION NO. 0 JOB NO. DOT-476 DATE: 10-16-23 FIGURE NO. 3 NC DOT MAINTENANCE FACILITY 40 STATE SHED ROAD ROBBINSVILLE, NORTH CAROLINA RECEPTOR SURVEY MAP LEGEND SITE PROPERTY BOUNDARY PARCEL BOUNDARY LINE TULULA CREEK PROPERTY IDENTIFICATION WATER SUPPLY WELL LOCATION GROUNDWATER FLOW DIRECTION 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES: 1.AERIAL IMAGERY OBTAINED FROM NCONEMAP, 2022. 2.BASE DATA OBTAINED FROM NCONEMAP, 2023. SW E E T G U M R D . ( O L D T A L L U L A H R D . ) TA L L U L A H R D . ( H W Y 1 2 9 ) ST A T E S H E D R D . FIVE P O I N T S R D . W. FO R T H I L L R D . OL D M O T H E R C H U R C H R D . E. M A I N S T . FOR D S T . 500 FT RADIUS 1,500 FT RADIUS WS-1 WS-2 S: \ A A A - M a s t e r P r o j e c t s \ N C D O T - D O T \ D O T - 4 7 6 R o b b i n s v i l l e \ R e p o r t s \ 2 0 2 3 - 0 9 G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ 2 0 2 3 1 0 1 6 . d w g , F I G 3 , 1 0 / 1 6 / 2 0 2 3 2 : 2 5 : 4 5 P M , d r a b u r n ST A T E S H E D R O A D FIVE POINTS ROA D OFFICE FO R M E R 1 0 , 0 0 0 G A L A S T s MAINTENAN C E SHOP TRUCK STORAG E SHED GRAVEL PARKING SOUTHEAST ENERGY (BULK FACILITY) SW E E T G U M R D . ( O L D T A L L U L A H R D . ) VACANT/UNOCCUPIED EQUIPME N T STORAGE NC DOT ADDITIONAL STORAGE YARD GRAVEL STOCKPILE GRAVEL STOCKPILE MW-4 MW-3 MW-1 DW-1 MW-5 FORMER LOCATION OF LIQUID ASPHALT AST FORMER LIQUID ASPHALT AST OIL/WATER SEPARATOR WASH PAD SALT SPREADER STORAGE RACK MW-2 TU L U L A C R E E K STORAGE UNITS TA L L U L A H R O A D ( H W Y 1 2 9 ) EQUIPMENT STORAGE AREA CANOPY W-2 FORMER 5,700-GAL GASOLINE UST AND 5,700-GAL DIESEL UST BASIN SALT SPREADER HANG RACK (94.70) (92.73) (93.45) (93.23) (92.42) 93 93 . 5 93 93 . 5 94 . 5 94 . 5 FORMER PRODUCT PIPING 92. 5 92 . 5 94 94 REVISION NO. 1 JOB NO. DOT-476 DATE: 10-16-23 FIGURE NO. 4 NC DOT MAINTENANCE FACILITY 40 STATE SHED ROAD ROBBINSVILLE, NORTH CAROLINA SHALLOW GROUNDWATER POTENTIOMETRIC MAP NOTES: 1.PARCEL DATA OBTAINED FROM GRAHAM COUNTY GIS, 2023. 2.ALL SITE WELLS GAUGED BY H&H ON SEPTEMBER 18, 2023. 3.UST = UNDERGROUND STORAGE TANK AST = ABOVEGROUND STORAGE TANK 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology LEGEND SITE PROPERTY BOUNDARY PARCEL BOUNDARY LINE SURFACE WATER FEATURE FENCE WATER LINE SEWER LINE SEWER MANHOLE FORMER USED OIL UST FORMER AST FUEL DISPENSER SHALLOW MONITORING WELL DEEP MONITORING WELL UST OBSERVATION WELL GROUNDWATER ELEVATION (FT) ESTIMATED SHALLOW GROUNDWATER CONTOUR LINE ESTIMATED GROUNDWATER FLOW DIRECTION (93.23) 94 S: \ A A A - M a s t e r P r o j e c t s \ N C D O T - D O T \ D O T - 4 7 6 R o b b i n s v i l l e \ R e p o r t s \ 2 0 2 3 - 0 9 G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ 2 0 2 3 1 0 0 5 . d w g , F I G 4 , 1 0 / 2 4 / 2 0 2 3 8 : 3 0 : 1 8 A M , s h a y n e s ST A T E S H E D R O A D FIVE POINTS ROA D OFFICE FO R M E R 1 0 , 0 0 0 G A L A S T s MAINTENAN C E SHOP TRUCK STORAG E SHED GRAVEL PARKING SOUTHEAST ENERGY (BULK FACILITY) SW E E T G U M R D . ( O L D T A L L U L A H R D . ) VACANT/UNOCCUPIED EQUIPME N T STORAGE NC DOT ADDITIONAL STORAGE YARD GRAVEL STOCKPILE GRAVEL STOCKPILE MW-4 MW-3 MW-1 DW-1 MW-5 FORMER LOCATION OF LIQUID ASPHALT AST FORMER LIQUID ASPHALT AST OIL/WATER SEPARATOR WASH PAD SALT SPREADER STORAGE RACK MW-2 TU L U L A C R E E K STORAGE UNITS TA L L U L A H R O A D ( H W Y 1 2 9 ) EQUIPMENT STORAGE AREA CANOPY W-2 FORMER 5,700-GAL GASOLINE UST AND 5,700-GAL DIESEL UST BASIN SALT SPREADER HANG RACK FORMER PRODUCT PIPING MW-3 1/20/2005 9/7/2022 3/21/2023 9/18/2023 MTBE 37 <0.140 <0.140 <0.140 REVISION NO. 1 JOB NO. DOT-476 DATE: 10-16-23 FIGURE NO. 5 NC DOT MAINTENANCE FACILITY 40 STATE SHED ROAD ROBBINSVILLE, NORTH CAROLINA GROUNDWATER SAMPLE LOCATIONS AND ANALYTICAL DATA NOTES: 1.ONLY CONSTITUENTS DETECTED ABOVE 2L STANDARDS OR 10X THE SURFACE WATER CRITERIA ARE SHOWN. REFER TO TABLE 3 FOR ALL DETECTED CONSTITUENTS. 2.BOLD CONCENTRATIONS EXCEED THE NC 2L STANDARDS. 3.UNDERLINE EXCEEDS 10X THE SURFACE WATER CRITERIA. 4.MTBE = METHYL TERT-BUTYL ETHER NA = NOT ANALYZED BDL = ALL COMPOUNDS BELOW LABORATORY DETECTION LIMITS ND = NO PETROLEUM COMPOUNDS DETECTED UST = UNDERGROUND STORAGE TANK AST = ABOVEGROUND STORAGE TANK µg/L = MICROGRAMS PER LITER 5.J FLAG DENOTES ESTIMATED CONCENTRATION BETWEEN LABORATORY REPORTING LIMIT AND METHOD DETECTION LIMIT. 6.SEE TABLE 3 FOR MASSACHUSETTS DEPARTMENT OF ENVIRONMENTAL PROTECTION (MADEP), EXTRACTABLE PETROLEUM HYDROCARBON (EPH), AND VOLATILE PETROLUEM HYDROCARBON (VPH) ANALYTICAL DATA. 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology LEGEND SITE PROPERTY BOUNDARY PARCEL BOUNDARY LINE SURFACE WATER FEATURE FENCE WATER LINE SEWER LINE SEWER MANHOLE FORMER USED OIL UST FORMER AST FUEL DISPENSER SHALLOW MONITORING WELL DEEP MONITORING WELL UST OBSERVATION WELL MW-1 1/20/2005 9/7/2022 3/21/2023 9/19/2023 BENZENE 320 11.7 8.36 5.07 MTBE 690 <0.140 <1.40 <0.140 NAPHTHALENE 100 21.2 30.3 9.69 n-PROPYLBENZENE 91 32.7 42.5 21.4 TOLUENE 300 0.488 J <2.20 0.338 J 1-METHYLNAPHTHALENE NA NA 16.1 7.53 PHENANTHRENE 3.7 J <6.34 2.70 1.81 J MW-2 1/20/2005 9/7/2022 3/21/2023 9/19/2023 BENZENE 25 <0.180 0.848 <0.180 MTBE 32 <0.140 <0.140 <0.140 NAPHTHALENE 38 <0.470 <0.470 <0.470 MW-3 1/20/2005 9/7/2022 3/21/2023 9/18/2023 MTBE 37 <0.140 <0.140 <0.140 MW-4 1/20/2005 9/7/2022 3/20/2023 9/18/2023 BENZENE 5.6 <0.180 <0.180 <0.180 MTBE 34 <0.140 <0.140 <0.140 NAPHTHALENE 17 J <0.470 <0.470 <0.470 BIS(2-ETHYLHEXYL) PHTHALATE 120 <8.80 <3.49 <3.46 BUTYLBENZYLPHTHALATE 15 J <4.53 <1.84 <1.83 PHENANTHRENE 4.9 J <6.34 <0.430 <0.428 MW-5 1/20/2005 9/6/2022 3/20/2023 9/18/2023 BDL CONSTITUENT SAMPLE ID CONCENTRATION (µg/L) SAMPLE DATE DW-1 1/20/2005 9/7/2022 3/21/2023 9/19/2023 ND S: \ A A A - M a s t e r P r o j e c t s \ N C D O T - D O T \ D O T - 4 7 6 R o b b i n s v i l l e \ R e p o r t s \ 2 0 2 3 - 0 9 G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ 2 0 2 3 1 0 0 5 . d w g , F I G 5 , 1 0 / 2 4 / 2 0 2 3 4 : 0 7 : 1 5 P M , s h a y n e s ST A T E S H E D R O A D FIVE POINTS ROA D OFFICE FO R M E R 1 0 , 0 0 0 G A L A S T s MAINTENAN C E SHOP TRUCK STORAG E SHED GRAVEL PARKING SOUTHEAST ENERGY (BULK FACILITY) SW E E T G U M R D . ( O L D T A L L U L A H R D . ) VACANT/UNOCCUPIED EQUIPME N T STORAGE NC DOT ADDITIONAL STORAGE YARD GRAVEL STOCKPILE GRAVEL STOCKPILE MW-4 MW-3 MW-1 DW-1 MW-5 FORMER LOCATION OF LIQUID ASPHALT AST FORMER LIQUID ASPHALT AST OIL/WATER SEPARATOR WASH PAD SALT SPREADER STORAGE RACK MW-2 TU L U L A C R E E K STORAGE UNITS TA L L U L A H R O A D ( H W Y 1 2 9 ) EQUIPMENT STORAGE AREA CANOPY W-2 FORMER 5,700-GAL GASOLINE UST AND 5,700-GAL DIESEL UST BASIN SALT SPREADER HANG RACK FORMER PRODUCT PIPING DOWNSTREAM 9/19/2023 BDL REVISION NO. 1 JOB NO. DOT-476 DATE: 10-16-23 FIGURE NO. 6 NC DOT MAINTENANCE FACILITY 40 STATE SHED ROAD ROBBINSVILLE, NORTH CAROLINA SURFACE WATER SAMPLE LOCATIONS AND ANALYTICAL DATA NOTES: 1.PARCEL DATA OBTAINED FROM GRAHAM COUNTY GIS, 2023. 2.BDL = BELOW LABORATORY DETECTION LIMITS UST = UNDERGROUND STORAGE TANK AST = ABOVE GROUND STORAGE TANK 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology LEGEND SITE PROPERTY BOUNDARY PARCEL BOUNDARY LINE SURFACE WATER FEATURE FENCE WATER LINE SEWER LINE SEWER MANHOLE FORMER USED OIL UST FORMER AST FUEL DISPENSER SHALLOW MONITORING WELL DEEP MONITORING WELL UST OBSERVATION WELL SURFACE WATER SAMPLE LOCATION SAMPLE ID CONCENTRATION (µg/L) SAMPLE DATE UPSTREAM 9/19/2023 BDL EDGE OF BANK 9/19/2023 BDL DOWNSTREAM 9/19/2023 BDL S: \ A A A - M a s t e r P r o j e c t s \ N C D O T - D O T \ D O T - 4 7 6 R o b b i n s v i l l e \ R e p o r t s \ 2 0 2 3 - 0 9 G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ 2 0 2 3 1 0 0 5 . d w g , F I G 6 , 1 0 / 2 4 / 2 0 2 3 4 : 0 8 : 1 6 P M , s h a y n e s Appendix A Laboratory Analytical Data Sheets   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   9/29/2023 Hart & Hickman (Charlotte) David Graham 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 23-263-0010 Client Project Description: DOT-476 Dear David Graham: Waypoint Analytical, LLC (Charlotte) received sample(s) on 9/20/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 102 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202437735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202499012State ProgramSouth Carolina 12/31/202399012State ProgramSouth Carolina Page 1 of 1 00016/23-263-0010 Page 2 of 102 Report Number: Sample Summary Table Client Project Description: 23-263-0010 DOT-476 Lab No Client Sample ID Matrix Date Collected Date Received 09/19/2023 11:25Aqueous 95675 MW-1 09/20/2023 09/19/2023 09:30Aqueous 95676 MW-2 09/20/2023 09/18/2023 16:20Aqueous 95677 MW-3 09/20/2023 09/18/2023 15:30Aqueous 95678 MW-4 09/20/2023 09/18/2023 14:15Aqueous 95679 MW-5 09/20/2023 09/19/2023 10:30Aqueous 95680 DW-1 09/20/2023 09/19/2023 12:45Aqueous 95681 UPSTREAM 09/20/2023 09/19/2023 12:25Aqueous 95682 Edge of Bank 09/20/2023 09/19/2023 12:05Aqueous 95683 Downstream 09/20/2023 Page 3 of 102 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-263-0010 Report Limit Project:DOT-476 V 95675MW-1 5.07 09/27/2023 15:086200BBenzeneµg/L 0.180 4.66 09/27/2023 15:086200Bn-Butylbenzene µg/L 0.180 6.74 09/27/2023 15:086200Bsec-Butyl benzene µg/L 0.200 0.730 09/27/2023 15:086200BDi-Isopropyl Ether (DIPE)µg/L 0.500 0.607 09/27/2023 15:086200BEthylbenzeneµg/L 0.170 8.75 09/27/2023 15:086200BIsopropylbenzeneµg/L 0.180 J0.568 09/27/2023 15:086200BMethylene Chloride µg/L 0.330 9.69 09/27/2023 15:086200BNaphthaleneµg/L 0.470 21.4 09/27/2023 15:086200Bn-Propylbenzene µg/L 0.190 J0.338 09/27/2023 15:086200BTolueneµg/L 0.220 J0.225 09/27/2023 15:086200Bo-Xylene µg/L 0.210 1.08 09/27/2023 15:086200Bm,p-Xylene µg/L 0.420 J1.31 09/27/2023 15:086200BXylene (Total)µg/L 0.210 J0.887 09/26/2023 20:47625.1 Acenaphthene µg/L 0.302 2.06 09/26/2023 20:47625.1 Fluorene µg/L 0.807 7.53 09/26/2023 20:47625.1 1-Methylnaphthalene µg/L 1.14 2.27 09/26/2023 20:47625.1 2-Methylnaphthalene µg/L 0.666 3.27 09/26/2023 20:47625.1 Naphthalene µg/L 0.728 J1.81 09/26/2023 20:47625.1 Phenanthrene µg/L 0.428 V 95676MW-2 J4.26 09/25/2023 20:52625.1 Diethyl phthalate µg/L 1.12 V 95677MW-3 J3.54 09/25/2023 20:28625.1 Diethyl phthalate µg/L 0.745 V 95678MW-4 J0.242 09/26/2023 18:136200Bsec-Butyl benzene µg/L 0.200 J0.591 09/25/2023 20:05625.1 Acenaphthene µg/L 0.302 J4.54 09/25/2023 20:05625.1 Benzoic Acid µg/L 1.10 J2.49 09/25/2023 20:05625.1 Diethyl phthalate µg/L 0.745 V 95679MW-5 5.15 09/25/2023 19:42625.1 Diethyl phthalate µg/L 0.745 V 95680DW-1 11.9 09/26/2023 20:23625.1 Diethyl phthalate µg/L 0.745 Page 4 of 102   Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: DOT-476 Lab Report Number: 23-263-0010 Date: 9/28/2023 625.1 - Base/Neutrals and Acids by GC/MS Method 625.1 QC Batch No: V38372/V38350 LCSD was surrogated twice. All surrogates fall within acceptance criteria. Analyte: Benzidine QC Batch No: V38300/V38350 This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for a low bias. Analyte: Benzidine QC Batch No: V38300/V38350 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Benzidine QC Batch No: V38372/V38350 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Benzidine QC Batch No: V38372/V38350 This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for a low bias. Volatile Organic Compounds - GC/MS Method 6200B Analyte: 1,2,3-Trichlorobenzene QC Batch No: V38378/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2,3-Trichlorobenzene QC Batch No: V38416/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2,3-Trichlorobenzene QC Batch No: V38456/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2,4-Trichlorobenzene QC Batch No: V38378/V38455 Page 5 of 102   Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2,4-Trichlorobenzene QC Batch No: V38416/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 1,2,4-Trichlorobenzene QC Batch No: V38456/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: 2,2-Dichloropropane QC Batch No: V38416/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Carbon Tetrachloride QC Batch No: V38378/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Carbon Tetrachloride QC Batch No: V38416/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Carbon Tetrachloride QC Batch No: V38456/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Chloromethane QC Batch No: V38416/V38455 This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for a low bias. Analyte: Chloromethane QC Batch No: V38456/V38455 This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for a low bias. Analyte: Dichlorodifluoromethane Page 6 of 102   QC Batch No: V38416/V38455 This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for a low bias. Analyte: Dichlorodifluoromethane QC Batch No: V38456/V38455 This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for a low bias. Analyte: Hexachlorobutadiene QC Batch No: V38416/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Hexachlorobutadiene QC Batch No: V38456/V38455 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Vinyl acetate QC Batch No: V38378/V38455 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Vinyl chloride QC Batch No: V38416/V38455 This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for a low bias. Page 7 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-1 95675 Matrix: 9/19/2023 11:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38455 09/27/23 09:00 <1.80 µg/L 1.80 10.0Acetone 1 09/27/23 15:08 V38456MSA 5.07 µg/L 0.180 0.500Benzene 1 09/27/23 15:08 V38456MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 09/27/23 15:08 V38456MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/27/23 15:08 V38456MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/27/23 15:08 V38456MSA <1.50 µg/L 1.50 5.00Bromoform 1 09/27/23 15:08 V38456MSA <0.280 µg/L 0.280 1.00Bromomethane 1 09/27/23 15:08 V38456MSA 4.66 µg/L 0.180 0.500n-Butylbenzene 1 09/27/23 15:08 V38456MSA 6.74 µg/L 0.200 0.500sec-Butyl benzene 1 09/27/23 15:08 V38456MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/27/23 15:08 V38456MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/27/23 15:08 V38456MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/27/23 15:08 V38456MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/27/23 15:08 V38456MSA <0.430 µg/L 0.430 1.00Chloroethane 1 09/27/23 15:08 V38456MSA <0.220 µg/L 0.220 0.500Chloroform 1 09/27/23 15:08 V38456MSA <0.220 M µg/L 0.220 0.500Chloromethane 1 09/27/23 15:08 V38456MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/27/23 15:08 V38456MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/27/23 15:08 V38456MSA 0.730 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/27/23 15:08 V38456MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/27/23 15:08 V38456MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/27/23 15:08 V38456MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 09/27/23 15:08 V38456MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 8 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-1 95675 Matrix: 9/19/2023 11:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38455 09/27/23 09:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/27/23 15:08 V38456MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/27/23 15:08 V38456MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/27/23 15:08 V38456MSA <1.20 M µg/L 1.20 5.00Dichlorodifluoromethane 1 09/27/23 15:08 V38456MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/27/23 15:08 V38456MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/27/23 15:08 V38456MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/27/23 15:08 V38456MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/27/23 15:08 V38456MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/27/23 15:08 V38456MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/27/23 15:08 V38456MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/27/23 15:08 V38456MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/27/23 15:08 V38456MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/27/23 15:08 V38456MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/27/23 15:08 V38456MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/27/23 15:08 V38456MSA <42.0 µg/L 42.0 200Ethanol 1 09/27/23 15:08 V38456MSA 0.607 µg/L 0.170 0.500Ethylbenzene 1 09/27/23 15:08 V38456MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/27/23 15:08 V38456MSA <0.380 µg/L 0.380 1.002-Hexanone 1 09/27/23 15:08 V38456MSA 8.75 µg/L 0.180 0.500Isopropylbenzene 1 09/27/23 15:08 V38456MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/27/23 15:08 V38456MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/27/23 15:08 V38456MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 9 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-1 95675 Matrix: 9/19/2023 11:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38455 09/27/23 09:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/27/23 15:08 V38456MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/27/23 15:08 V38456MSA 0.568 J µg/L 0.330 2.00Methylene Chloride 1 09/27/23 15:08 V38456MSA 9.69 µg/L 0.470 1.00Naphthalene 1 09/27/23 15:08 V38456MSA 21.4 µg/L 0.190 0.500n-Propylbenzene 1 09/27/23 15:08 V38456MSA <0.220 µg/L 0.220 0.500Styrene 1 09/27/23 15:08 V38456MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/27/23 15:08 V38456MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/27/23 15:08 V38456MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/27/23 15:08 V38456MSA 0.338 J µg/L 0.220 0.500Toluene 1 09/27/23 15:08 V38456MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/27/23 15:08 V38456MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/27/23 15:08 V38456MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/27/23 15:08 V38456MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/27/23 15:08 V38456MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 09/27/23 15:08 V38456MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/27/23 15:08 V38456MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/27/23 15:08 V38456MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/27/23 15:08 V38456MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/27/23 15:08 V38456MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/27/23 15:08 V38456MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 09/27/23 15:08 V38456MSA 0.225 J µg/L 0.210 0.500o-Xylene 1 09/27/23 15:08 V38456MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 10 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-1 95675 Matrix: 9/19/2023 11:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38455 09/27/23 09:00 1.08 µg/L 0.420 1.00m,p-Xylene 1 09/27/23 15:08 V38456MSA 1.31 J µg/L 0.210 0.500Xylene (Total)1 09/27/23 15:08 V38456 Surrogate: 4-Bromofluorobenzene 91.2 Limits: 70-130%09/27/23 15:081 MSA V38456 Surrogate: Dibromofluoromethane 100 Limits: 70-130%09/27/23 15:081 MSA V38456 Surrogate: 1,2-Dichloroethane - d4 111 Limits: 70-130%09/27/23 15:081 MSA V38456 Surrogate: Toluene-d8 96.2 Limits: 70-130%09/27/23 15:081 MSA V38456 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 0.887 J µg/L 0.302 2.00Acenaphthene 1 09/26/23 20:47 V38372AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 09/26/23 20:47 V38372AMP <0.836 µg/L 0.836 2.00Anthracene 1 09/26/23 20:47 V38372AMP <1.32 M µg/L 1.32 10.0Benzidine 1 09/26/23 20:47 V38372AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 09/26/23 20:47 V38372AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 09/26/23 20:47 V38372AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 09/26/23 20:47 V38372AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 09/26/23 20:47 V38372AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 09/26/23 20:47 V38372AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 09/26/23 20:47 V38372AMP <0.684 µg/L 0.684 5.00Benzyl alcohol 1 09/26/23 20:47 V38372AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 09/26/23 20:47 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 11 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-1 95675 Matrix: 9/19/2023 11:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 09/26/23 20:47 V38372AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 09/26/23 20:47 V38372AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 09/26/23 20:47 V38372AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 09/26/23 20:47 V38372AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 09/26/23 20:47 V38372AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 09/26/23 20:47 V38372AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 09/26/23 20:47 V38372AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 09/26/23 20:47 V38372AMP <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 09/26/23 20:47 V38372AMP <0.405 µg/L 0.405 2.00Chrysene 1 09/26/23 20:47 V38372AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 09/26/23 20:47 V38372AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 09/26/23 20:47 V38372AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 09/26/23 20:47 V38372AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 09/26/23 20:47 V38372AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 09/26/23 20:47 V38372AMP <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 09/26/23 20:47 V38372AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 09/26/23 20:47 V38372AMP <0.745 µg/L 0.745 5.00Diethyl phthalate 1 09/26/23 20:47 V38372AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 09/26/23 20:47 V38372AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 09/26/23 20:47 V38372AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 09/26/23 20:47 V38372AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 09/26/23 20:47 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 12 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-1 95675 Matrix: 9/19/2023 11:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 09/26/23 20:47 V38372AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 09/26/23 20:47 V38372AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 09/26/23 20:47 V38372AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 09/26/23 20:47 V38372AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 09/26/23 20:47 V38372AMP 2.06 µg/L 0.807 2.00Fluorene 1 09/26/23 20:47 V38372AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 09/26/23 20:47 V38372AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 09/26/23 20:47 V38372AMP <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 09/26/23 20:47 V38372AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 09/26/23 20:47 V38372AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 09/26/23 20:47 V38372AMP <0.444 µg/L 0.444 5.00Isophorone 1 09/26/23 20:47 V38372AMP 7.53 µg/L 1.14 2.001-Methylnaphthalene 1 09/26/23 20:47 V38372AMP 2.27 µg/L 0.666 2.002-Methylnaphthalene 1 09/26/23 20:47 V38372AMP 3.27 µg/L 0.728 2.00Naphthalene 1 09/26/23 20:47 V38372AMP <0.905 µg/L 0.905 5.00Nitrobenzene 1 09/26/23 20:47 V38372AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 09/26/23 20:47 V38372AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 09/26/23 20:47 V38372AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 09/26/23 20:47 V38372AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 09/26/23 20:47 V38372AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 09/26/23 20:47 V38372AMP 1.81 J µg/L 0.428 2.00Phenanthrene 1 09/26/23 20:47 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 13 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-1 95675 Matrix: 9/19/2023 11:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.651 µg/L 0.651 5.00Phenol 1 09/26/23 20:47 V38372AMP <0.434 µg/L 0.434 2.00Pyrene 1 09/26/23 20:47 V38372AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 09/26/23 20:47 V38372AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 09/26/23 20:47 V38372AMP 625.1Surrogate: Phenol-d5 25.0 Limits: 10-63%09/26/23 20:471 AMP Surrogate: 2-Fluorobiphenyl 58.4 Limits: 49-118%09/26/23 20:471 AMP V38372 Surrogate: 2-Fluorophenol 37.6 Limits: 22-84%09/26/23 20:471 AMP V38372 Surrogate: Nitrobenzene-d5 51.6 Limits: 43-123%09/26/23 20:471 AMP V38372 Surrogate: 4-Terphenyl-d14 69.8 Limits: 49-151%09/26/23 20:471 AMP V38372 Surrogate: 2,4,6-Tribromophenol 71.9 Limits: 31-144%09/26/23 20:471 AMP V38372 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 14 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-2 95676 Matrix: 9/19/2023 9:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 09/26/23 04:28 V38378MSA <0.180 µg/L 0.180 0.500Benzene 1 09/26/23 04:28 V38378MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 09/26/23 04:28 V38378MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/26/23 04:28 V38378MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/26/23 04:28 V38378MSA <1.50 µg/L 1.50 5.00Bromoform 1 09/26/23 04:28 V38378MSA <0.280 µg/L 0.280 1.00Bromomethane 1 09/26/23 04:28 V38378MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 09/26/23 04:28 V38378MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 09/26/23 04:28 V38378MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/26/23 04:28 V38378MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/26/23 04:28 V38378MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/26/23 04:28 V38378MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/26/23 04:28 V38378MSA <0.430 µg/L 0.430 1.00Chloroethane 1 09/26/23 04:28 V38378MSA <0.220 µg/L 0.220 0.500Chloroform 1 09/26/23 04:28 V38378MSA <0.220 µg/L 0.220 0.500Chloromethane 1 09/26/23 04:28 V38378MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/26/23 04:28 V38378MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/26/23 04:28 V38378MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/26/23 04:28 V38378MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/26/23 04:28 V38378MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/26/23 04:28 V38378MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 09/26/23 04:28 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 15 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-2 95676 Matrix: 9/19/2023 9:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/26/23 04:28 V38378MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/26/23 04:28 V38378MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/26/23 04:28 V38378MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 09/26/23 04:28 V38378MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/26/23 04:28 V38378MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/26/23 04:28 V38378MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/26/23 04:28 V38378MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/26/23 04:28 V38378MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/26/23 04:28 V38378MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/26/23 04:28 V38378MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/26/23 04:28 V38378MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/26/23 04:28 V38378MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/26/23 04:28 V38378MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/26/23 04:28 V38378MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/26/23 04:28 V38378MSA <42.0 µg/L 42.0 200Ethanol 1 09/26/23 04:28 V38378MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 09/26/23 04:28 V38378MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/26/23 04:28 V38378MSA <0.380 µg/L 0.380 1.002-Hexanone 1 09/26/23 04:28 V38378MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 09/26/23 04:28 V38378MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/26/23 04:28 V38378MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/26/23 04:28 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 16 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-2 95676 Matrix: 9/19/2023 9:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/26/23 04:28 V38378MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/26/23 04:28 V38378MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 09/26/23 04:28 V38378MSA <0.470 µg/L 0.470 1.00Naphthalene 1 09/26/23 04:28 V38378MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 09/26/23 04:28 V38378MSA <0.220 µg/L 0.220 0.500Styrene 1 09/26/23 04:28 V38378MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/26/23 04:28 V38378MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/26/23 04:28 V38378MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/26/23 04:28 V38378MSA <0.220 µg/L 0.220 0.500Toluene 1 09/26/23 04:28 V38378MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/26/23 04:28 V38378MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/26/23 04:28 V38378MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/26/23 04:28 V38378MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/26/23 04:28 V38378MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 09/26/23 04:28 V38378MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/26/23 04:28 V38378MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/26/23 04:28 V38378MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/26/23 04:28 V38378MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/26/23 04:28 V38378MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/26/23 04:28 V38378MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 09/26/23 04:28 V38378MSA <0.210 µg/L 0.210 0.500o-Xylene 1 09/26/23 04:28 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 17 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-2 95676 Matrix: 9/19/2023 9:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 09/26/23 04:28 V38378MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 09/26/23 04:28 V38378 Surrogate: 4-Bromofluorobenzene 92.8 Limits: 70-130%09/26/23 04:281 MSA V38378 Surrogate: Dibromofluoromethane 99.2 Limits: 70-130%09/26/23 04:281 MSA V38378 Surrogate: 1,2-Dichloroethane - d4 107 Limits: 70-130%09/26/23 04:281 MSA V38378 Surrogate: Toluene-d8 99.8 Limits: 70-130%09/26/23 04:281 MSA V38378 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <0.453 µg/L 0.453 3.00Acenaphthene 1 09/25/23 20:52 V38300AMP <0.445 µg/L 0.445 3.00Acenaphthylene 1 09/25/23 20:52 V38300AMP <1.25 µg/L 1.25 3.00Anthracene 1 09/25/23 20:52 V38300AMP <1.98 M µg/L 1.98 15.0Benzidine 1 09/25/23 20:52 V38300AMP <0.955 µg/L 0.955 3.00Benzo(a)anthracene 1 09/25/23 20:52 V38300AMP <1.53 µg/L 1.53 3.00Benzo(a)pyrene 1 09/25/23 20:52 V38300AMP <3.74 µg/L 3.74 7.50Benzo(b)fluoranthene 1 09/25/23 20:52 V38300AMP <1.52 µg/L 1.52 7.50Benzo(g,h,i)perylene 1 09/25/23 20:52 V38300AMP <2.99 µg/L 2.99 7.50Benzo(k)fluoranthene 1 09/25/23 20:52 V38300AMP <1.65 µg/L 1.65 15.0Benzoic Acid 1 09/25/23 20:52 V38300AMP <1.03 µg/L 1.03 7.50Benzyl alcohol 1 09/25/23 20:52 V38300AMP <0.702 µg/L 0.702 7.50Bis(2-Chloroethoxy)methane 1 09/25/23 20:52 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 18 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-2 95676 Matrix: 9/19/2023 9:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <1.56 µg/L 1.56 7.50Bis(2-Chloroethyl)ether 1 09/25/23 20:52 V38300AMP <1.62 µg/L 1.62 7.50Bis(2-Chloroisopropyl)ether 1 09/25/23 20:52 V38300AMP <5.19 µg/L 5.19 15.0Bis(2-ethylhexyl)phthalate 1 09/25/23 20:52 V38300AMP <1.67 µg/L 1.67 7.504-Bromophenyl phenyl ether 1 09/25/23 20:52 V38300AMP <2.75 µg/L 2.75 7.50Butyl benzyl phthalate 1 09/25/23 20:52 V38300AMP <1.77 µg/L 1.77 7.504-Chloro-3-methylphenol 1 09/25/23 20:52 V38300AMP <11.1 µg/L 11.1 30.02-Chloronaphthalene 1 09/25/23 20:52 V38300AMP <1.41 µg/L 1.41 15.02-Chlorophenol 1 09/25/23 20:52 V38300AMP <2.57 µg/L 2.57 7.504-Chlorophenyl phenyl ether 1 09/25/23 20:52 V38300AMP <0.607 µg/L 0.607 3.00Chrysene 1 09/25/23 20:52 V38300AMP <0.651 µg/L 0.651 3.00Dibenz(a,h)anthracene 1 09/25/23 20:52 V38300AMP <1.28 µg/L 1.28 7.50Dibenzofuran 1 09/25/23 20:52 V38300AMP <3.00 µg/L 3.00 7.501,2-Dichlorobenzene 1 09/25/23 20:52 V38300AMP <3.00 µg/L 3.00 7.501,3-Dichlorobenzene 1 09/25/23 20:52 V38300AMP <3.08 µg/L 3.08 7.501,4-Dichlorobenzene 1 09/25/23 20:52 V38300AMP <2.84 µg/L 2.84 7.503,3'-Dichlorobenzidine 1 09/25/23 20:52 V38300AMP <2.19 µg/L 2.19 15.02,4-Dichlorophenol 1 09/25/23 20:52 V38300AMP 4.26 J µg/L 1.12 7.50Diethyl phthalate 1 09/25/23 20:52 V38300AMP <1.41 µg/L 1.41 7.50Dimethyl phthalate 1 09/25/23 20:52 V38300AMP <2.36 µg/L 2.36 30.02,4-Dimethylphenol 1 09/25/23 20:52 V38300AMP <3.09 µg/L 3.09 7.50Di-n-butyl phthalate 1 09/25/23 20:52 V38300AMP <3.11 µg/L 3.11 15.04,6-Dinitro-2-methylphenol 1 09/25/23 20:52 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 19 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-2 95676 Matrix: 9/19/2023 9:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <2.88 µg/L 2.88 15.02,4-Dinitrophenol 1 09/25/23 20:52 V38300AMP <1.67 µg/L 1.67 7.502,4-Dinitrotoluene 1 09/25/23 20:52 V38300AMP <1.21 µg/L 1.21 7.502,6-Dinitrotoluene 1 09/25/23 20:52 V38300AMP <2.48 µg/L 2.48 7.50Di-n-Octyl Phthalate 1 09/25/23 20:52 V38300AMP <0.375 µg/L 0.375 3.00Fluoranthene 1 09/25/23 20:52 V38300AMP <1.21 µg/L 1.21 3.00Fluorene 1 09/25/23 20:52 V38300AMP <1.47 µg/L 1.47 7.50Hexachlorobenzene 1 09/25/23 20:52 V38300AMP <4.10 µg/L 4.10 7.50Hexachlorobutadiene 1 09/25/23 20:52 V38300AMP <3.08 µg/L 3.08 7.50Hexachlorocyclopentadiene 1 09/25/23 20:52 V38300AMP <2.64 µg/L 2.64 7.50Hexachloroethane 1 09/25/23 20:52 V38300AMP <0.715 µg/L 0.715 3.00Indeno(1,2,3-cd)pyrene 1 09/25/23 20:52 V38300AMP <0.666 µg/L 0.666 7.50Isophorone 1 09/25/23 20:52 V38300AMP <1.71 µg/L 1.71 3.001-Methylnaphthalene 1 09/25/23 20:52 V38300AMP <0.999 µg/L 0.999 3.002-Methylnaphthalene 1 09/25/23 20:52 V38300AMP <1.09 µg/L 1.09 3.00Naphthalene 1 09/25/23 20:52 V38300AMP <1.36 µg/L 1.36 7.50Nitrobenzene 1 09/25/23 20:52 V38300AMP <0.739 µg/L 0.739 7.502-Nitrophenol 1 09/25/23 20:52 V38300AMP <1.85 µg/L 1.85 15.04-Nitrophenol 1 09/25/23 20:52 V38300AMP <1.65 µg/L 1.65 7.50N-Nitrosodiphenylamine 1 09/25/23 20:52 V38300AMP <0.961 µg/L 0.961 7.50N-Nitroso-di-n-propylamine 1 09/25/23 20:52 V38300AMP <2.15 µg/L 2.15 7.50Pentachlorophenol 1 09/25/23 20:52 V38300AMP <0.642 µg/L 0.642 3.00Phenanthrene 1 09/25/23 20:52 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 20 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-2 95676 Matrix: 9/19/2023 9:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <0.976 µg/L 0.976 7.50Phenol 1 09/25/23 20:52 V38300AMP <0.651 µg/L 0.651 3.00Pyrene 1 09/25/23 20:52 V38300AMP <3.32 µg/L 3.32 7.501,2,4-Trichlorobenzene 1 09/25/23 20:52 V38300AMP <1.98 µg/L 1.98 7.502,4,6-Trichlorophenol 1 09/25/23 20:52 V38300AMP 625.1Surrogate: Phenol-d5 28.8 Limits: 10-63%09/25/23 20:521 AMP Surrogate: 2-Fluorobiphenyl 83.8 Limits: 49-118%09/25/23 20:521 AMP V38300 Surrogate: 2-Fluorophenol 43.6 Limits: 22-84%09/25/23 20:521 AMP V38300 Surrogate: Nitrobenzene-d5 84.8 Limits: 43-123%09/25/23 20:521 AMP V38300 Surrogate: 4-Terphenyl-d14 103 Limits: 49-151%09/25/23 20:521 AMP V38300 Surrogate: 2,4,6-Tribromophenol 97.7 Limits: 31-144%09/25/23 20:521 AMP V38300 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 21 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-3 95677 Matrix: 9/18/2023 16:20 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 09/26/23 07:46 V38378MSA <0.180 µg/L 0.180 0.500Benzene 1 09/26/23 07:46 V38378MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 09/26/23 07:46 V38378MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/26/23 07:46 V38378MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/26/23 07:46 V38378MSA <1.50 µg/L 1.50 5.00Bromoform 1 09/26/23 07:46 V38378MSA <0.280 µg/L 0.280 1.00Bromomethane 1 09/26/23 07:46 V38378MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 09/26/23 07:46 V38378MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 09/26/23 07:46 V38378MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/26/23 07:46 V38378MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/26/23 07:46 V38378MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/26/23 07:46 V38378MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/26/23 07:46 V38378MSA <0.430 µg/L 0.430 1.00Chloroethane 1 09/26/23 07:46 V38378MSA <0.220 µg/L 0.220 0.500Chloroform 1 09/26/23 07:46 V38378MSA <0.220 µg/L 0.220 0.500Chloromethane 1 09/26/23 07:46 V38378MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/26/23 07:46 V38378MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/26/23 07:46 V38378MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/26/23 07:46 V38378MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/26/23 07:46 V38378MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/26/23 07:46 V38378MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 09/26/23 07:46 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 22 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-3 95677 Matrix: 9/18/2023 16:20 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/26/23 07:46 V38378MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/26/23 07:46 V38378MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/26/23 07:46 V38378MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 09/26/23 07:46 V38378MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/26/23 07:46 V38378MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/26/23 07:46 V38378MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/26/23 07:46 V38378MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/26/23 07:46 V38378MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/26/23 07:46 V38378MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/26/23 07:46 V38378MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/26/23 07:46 V38378MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/26/23 07:46 V38378MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/26/23 07:46 V38378MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/26/23 07:46 V38378MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/26/23 07:46 V38378MSA <42.0 µg/L 42.0 200Ethanol 1 09/26/23 07:46 V38378MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 09/26/23 07:46 V38378MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/26/23 07:46 V38378MSA <0.380 µg/L 0.380 1.002-Hexanone 1 09/26/23 07:46 V38378MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 09/26/23 07:46 V38378MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/26/23 07:46 V38378MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/26/23 07:46 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 23 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-3 95677 Matrix: 9/18/2023 16:20 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/26/23 07:46 V38378MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/26/23 07:46 V38378MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 09/26/23 07:46 V38378MSA <0.470 µg/L 0.470 1.00Naphthalene 1 09/26/23 07:46 V38378MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 09/26/23 07:46 V38378MSA <0.220 µg/L 0.220 0.500Styrene 1 09/26/23 07:46 V38378MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/26/23 07:46 V38378MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/26/23 07:46 V38378MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/26/23 07:46 V38378MSA <0.220 µg/L 0.220 0.500Toluene 1 09/26/23 07:46 V38378MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/26/23 07:46 V38378MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/26/23 07:46 V38378MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/26/23 07:46 V38378MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/26/23 07:46 V38378MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 09/26/23 07:46 V38378MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/26/23 07:46 V38378MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/26/23 07:46 V38378MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/26/23 07:46 V38378MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/26/23 07:46 V38378MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/26/23 07:46 V38378MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 09/26/23 07:46 V38378MSA <0.210 µg/L 0.210 0.500o-Xylene 1 09/26/23 07:46 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 24 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-3 95677 Matrix: 9/18/2023 16:20 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 09/26/23 07:46 V38378MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 09/26/23 07:46 V38378 Surrogate: 4-Bromofluorobenzene 89.8 Limits: 70-130%09/26/23 07:461 MSA V38378 Surrogate: Dibromofluoromethane 100 Limits: 70-130%09/26/23 07:461 MSA V38378 Surrogate: 1,2-Dichloroethane - d4 110 Limits: 70-130%09/26/23 07:461 MSA V38378 Surrogate: Toluene-d8 95.4 Limits: 70-130%09/26/23 07:461 MSA V38378 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <0.302 µg/L 0.302 2.00Acenaphthene 1 09/25/23 20:28 V38300AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 09/25/23 20:28 V38300AMP <0.836 µg/L 0.836 2.00Anthracene 1 09/25/23 20:28 V38300AMP <1.32 M µg/L 1.32 10.0Benzidine 1 09/25/23 20:28 V38300AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 09/25/23 20:28 V38300AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 09/25/23 20:28 V38300AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 09/25/23 20:28 V38300AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 09/25/23 20:28 V38300AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 09/25/23 20:28 V38300AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 09/25/23 20:28 V38300AMP <0.684 µg/L 0.684 5.00Benzyl alcohol 1 09/25/23 20:28 V38300AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 09/25/23 20:28 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 25 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-3 95677 Matrix: 9/18/2023 16:20 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 09/25/23 20:28 V38300AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 09/25/23 20:28 V38300AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 09/25/23 20:28 V38300AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 09/25/23 20:28 V38300AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 09/25/23 20:28 V38300AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 09/25/23 20:28 V38300AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 09/25/23 20:28 V38300AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 09/25/23 20:28 V38300AMP <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 09/25/23 20:28 V38300AMP <0.405 µg/L 0.405 2.00Chrysene 1 09/25/23 20:28 V38300AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 09/25/23 20:28 V38300AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 09/25/23 20:28 V38300AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 09/25/23 20:28 V38300AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 09/25/23 20:28 V38300AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 09/25/23 20:28 V38300AMP <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 09/25/23 20:28 V38300AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 09/25/23 20:28 V38300AMP 3.54 J µg/L 0.745 5.00Diethyl phthalate 1 09/25/23 20:28 V38300AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 09/25/23 20:28 V38300AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 09/25/23 20:28 V38300AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 09/25/23 20:28 V38300AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 09/25/23 20:28 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 26 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-3 95677 Matrix: 9/18/2023 16:20 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 09/25/23 20:28 V38300AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 09/25/23 20:28 V38300AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 09/25/23 20:28 V38300AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 09/25/23 20:28 V38300AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 09/25/23 20:28 V38300AMP <0.807 µg/L 0.807 2.00Fluorene 1 09/25/23 20:28 V38300AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 09/25/23 20:28 V38300AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 09/25/23 20:28 V38300AMP <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 09/25/23 20:28 V38300AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 09/25/23 20:28 V38300AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 09/25/23 20:28 V38300AMP <0.444 µg/L 0.444 5.00Isophorone 1 09/25/23 20:28 V38300AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 09/25/23 20:28 V38300AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 09/25/23 20:28 V38300AMP <0.728 µg/L 0.728 2.00Naphthalene 1 09/25/23 20:28 V38300AMP <0.905 µg/L 0.905 5.00Nitrobenzene 1 09/25/23 20:28 V38300AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 09/25/23 20:28 V38300AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 09/25/23 20:28 V38300AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 09/25/23 20:28 V38300AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 09/25/23 20:28 V38300AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 09/25/23 20:28 V38300AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 09/25/23 20:28 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 27 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-3 95677 Matrix: 9/18/2023 16:20 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <0.651 µg/L 0.651 5.00Phenol 1 09/25/23 20:28 V38300AMP <0.434 µg/L 0.434 2.00Pyrene 1 09/25/23 20:28 V38300AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 09/25/23 20:28 V38300AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 09/25/23 20:28 V38300AMP 625.1Surrogate: Phenol-d5 14.2 Limits: 10-63%09/25/23 20:281 AMP Surrogate: 2-Fluorobiphenyl 64.4 Limits: 49-118%09/25/23 20:281 AMP V38300 Surrogate: 2-Fluorophenol 22.7 Limits: 22-84%09/25/23 20:281 AMP V38300 Surrogate: Nitrobenzene-d5 63.2 Limits: 43-123%09/25/23 20:281 AMP V38300 Surrogate: 4-Terphenyl-d14 81.4 Limits: 49-151%09/25/23 20:281 AMP V38300 Surrogate: 2,4,6-Tribromophenol 81.0 Limits: 31-144%09/25/23 20:281 AMP V38300 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 28 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-4 95678 Matrix: 9/18/2023 15:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38414 09/26/23 09:00 <1.80 µg/L 1.80 10.0Acetone 1 09/26/23 18:13 V38416ENM <0.180 µg/L 0.180 0.500Benzene 1 09/26/23 18:13 V38416ENM <0.210 µg/L 0.210 0.500Bromobenzene 1 09/26/23 18:13 V38416ENM <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/26/23 18:13 V38416ENM <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/26/23 18:13 V38416ENM <1.50 µg/L 1.50 5.00Bromoform 1 09/26/23 18:13 V38416ENM <0.280 µg/L 0.280 1.00Bromomethane 1 09/26/23 18:13 V38416ENM <0.180 µg/L 0.180 0.500n-Butylbenzene 1 09/26/23 18:13 V38416ENM 0.242 J µg/L 0.200 0.500sec-Butyl benzene 1 09/26/23 18:13 V38416ENM <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/26/23 18:13 V38416ENM <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/26/23 18:13 V38416ENM <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/26/23 18:13 V38416ENM <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/26/23 18:13 V38416ENM <0.430 µg/L 0.430 1.00Chloroethane 1 09/26/23 18:13 V38416ENM <0.220 µg/L 0.220 0.500Chloroform 1 09/26/23 18:13 V38416ENM <0.220 M µg/L 0.220 0.500Chloromethane 1 09/26/23 18:13 V38416ENM <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/26/23 18:13 V38416ENM <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/26/23 18:13 V38416ENM <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/26/23 18:13 V38416ENM <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/26/23 18:13 V38416ENM <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/26/23 18:13 V38416ENM <0.230 µg/L 0.230 0.500Dibromomethane 1 09/26/23 18:13 V38416ENM Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 29 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-4 95678 Matrix: 9/18/2023 15:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38414 09/26/23 09:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/26/23 18:13 V38416ENM <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/26/23 18:13 V38416ENM <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/26/23 18:13 V38416ENM <1.20 M µg/L 1.20 5.00Dichlorodifluoromethane 1 09/26/23 18:13 V38416ENM <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/26/23 18:13 V38416ENM <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/26/23 18:13 V38416ENM <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/26/23 18:13 V38416ENM <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/26/23 18:13 V38416ENM <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/26/23 18:13 V38416ENM <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/26/23 18:13 V38416ENM <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/26/23 18:13 V38416ENM <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/26/23 18:13 V38416ENM <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/26/23 18:13 V38416ENM <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/26/23 18:13 V38416ENM <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/26/23 18:13 V38416ENM <42.0 µg/L 42.0 200Ethanol 1 09/26/23 18:13 V38416ENM <0.170 µg/L 0.170 0.500Ethylbenzene 1 09/26/23 18:13 V38416ENM <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/26/23 18:13 V38416ENM <0.380 µg/L 0.380 1.002-Hexanone 1 09/26/23 18:13 V38416ENM <0.180 µg/L 0.180 0.500Isopropylbenzene 1 09/26/23 18:13 V38416ENM <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/26/23 18:13 V38416ENM <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/26/23 18:13 V38416ENM Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 30 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-4 95678 Matrix: 9/18/2023 15:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38414 09/26/23 09:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/26/23 18:13 V38416ENM <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/26/23 18:13 V38416ENM <0.330 µg/L 0.330 2.00Methylene Chloride 1 09/26/23 18:13 V38416ENM <0.470 µg/L 0.470 1.00Naphthalene 1 09/26/23 18:13 V38416ENM <0.190 µg/L 0.190 0.500n-Propylbenzene 1 09/26/23 18:13 V38416ENM <0.220 µg/L 0.220 0.500Styrene 1 09/26/23 18:13 V38416ENM <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/26/23 18:13 V38416ENM <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/26/23 18:13 V38416ENM <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/26/23 18:13 V38416ENM <0.220 µg/L 0.220 0.500Toluene 1 09/26/23 18:13 V38416ENM <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/26/23 18:13 V38416ENM <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/26/23 18:13 V38416ENM <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/26/23 18:13 V38416ENM <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/26/23 18:13 V38416ENM <0.180 µg/L 0.180 0.500Trichloroethene 1 09/26/23 18:13 V38416ENM <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/26/23 18:13 V38416ENM <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/26/23 18:13 V38416ENM <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/26/23 18:13 V38416ENM <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/26/23 18:13 V38416ENM <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/26/23 18:13 V38416ENM <0.170 M µg/L 0.170 0.500Vinyl Chloride 1 09/26/23 18:13 V38416ENM <0.210 µg/L 0.210 0.500o-Xylene 1 09/26/23 18:13 V38416ENM Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 31 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-4 95678 Matrix: 9/18/2023 15:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38414 09/26/23 09:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 09/26/23 18:13 V38416ENM <0.21 µg/L 0.210 0.500Xylene (Total)1 09/26/23 18:13 V38416 Surrogate: 4-Bromofluorobenzene 91.2 Limits: 70-130%09/26/23 18:131 ENM V38416 Surrogate: Dibromofluoromethane 102 Limits: 70-130%09/26/23 18:131 ENM V38416 Surrogate: 1,2-Dichloroethane - d4 113 Limits: 70-130%09/26/23 18:131 ENM V38416 Surrogate: Toluene-d8 98.4 Limits: 70-130%09/26/23 18:131 ENM V38416 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 0.591 J µg/L 0.302 2.00Acenaphthene 1 09/25/23 20:05 V38300AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 09/25/23 20:05 V38300AMP <0.836 µg/L 0.836 2.00Anthracene 1 09/25/23 20:05 V38300AMP <1.32 M µg/L 1.32 10.0Benzidine 1 09/25/23 20:05 V38300AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 09/25/23 20:05 V38300AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 09/25/23 20:05 V38300AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 09/25/23 20:05 V38300AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 09/25/23 20:05 V38300AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 09/25/23 20:05 V38300AMP 4.54 J µg/L 1.10 10.0Benzoic Acid 1 09/25/23 20:05 V38300AMP <0.684 µg/L 0.684 5.00Benzyl alcohol 1 09/25/23 20:05 V38300AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 09/25/23 20:05 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 32 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-4 95678 Matrix: 9/18/2023 15:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 09/25/23 20:05 V38300AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 09/25/23 20:05 V38300AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 09/25/23 20:05 V38300AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 09/25/23 20:05 V38300AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 09/25/23 20:05 V38300AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 09/25/23 20:05 V38300AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 09/25/23 20:05 V38300AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 09/25/23 20:05 V38300AMP <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 09/25/23 20:05 V38300AMP <0.405 µg/L 0.405 2.00Chrysene 1 09/25/23 20:05 V38300AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 09/25/23 20:05 V38300AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 09/25/23 20:05 V38300AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 09/25/23 20:05 V38300AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 09/25/23 20:05 V38300AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 09/25/23 20:05 V38300AMP <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 09/25/23 20:05 V38300AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 09/25/23 20:05 V38300AMP 2.49 J µg/L 0.745 5.00Diethyl phthalate 1 09/25/23 20:05 V38300AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 09/25/23 20:05 V38300AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 09/25/23 20:05 V38300AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 09/25/23 20:05 V38300AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 09/25/23 20:05 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 33 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-4 95678 Matrix: 9/18/2023 15:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 09/25/23 20:05 V38300AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 09/25/23 20:05 V38300AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 09/25/23 20:05 V38300AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 09/25/23 20:05 V38300AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 09/25/23 20:05 V38300AMP <0.807 µg/L 0.807 2.00Fluorene 1 09/25/23 20:05 V38300AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 09/25/23 20:05 V38300AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 09/25/23 20:05 V38300AMP <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 09/25/23 20:05 V38300AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 09/25/23 20:05 V38300AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 09/25/23 20:05 V38300AMP <0.444 µg/L 0.444 5.00Isophorone 1 09/25/23 20:05 V38300AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 09/25/23 20:05 V38300AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 09/25/23 20:05 V38300AMP <0.728 µg/L 0.728 2.00Naphthalene 1 09/25/23 20:05 V38300AMP <0.905 µg/L 0.905 5.00Nitrobenzene 1 09/25/23 20:05 V38300AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 09/25/23 20:05 V38300AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 09/25/23 20:05 V38300AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 09/25/23 20:05 V38300AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 09/25/23 20:05 V38300AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 09/25/23 20:05 V38300AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 09/25/23 20:05 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 34 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-4 95678 Matrix: 9/18/2023 15:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <0.651 µg/L 0.651 5.00Phenol 1 09/25/23 20:05 V38300AMP <0.434 µg/L 0.434 2.00Pyrene 1 09/25/23 20:05 V38300AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 09/25/23 20:05 V38300AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 09/25/23 20:05 V38300AMP 625.1Surrogate: Phenol-d5 19.1 Limits: 10-63%09/25/23 20:051 AMP Surrogate: 2-Fluorobiphenyl 57.2 Limits: 49-118%09/25/23 20:051 AMP V38300 Surrogate: 2-Fluorophenol 27.1 Limits: 22-84%09/25/23 20:051 AMP V38300 Surrogate: Nitrobenzene-d5 55.6 Limits: 43-123%09/25/23 20:051 AMP V38300 Surrogate: 4-Terphenyl-d14 81.2 Limits: 49-151%09/25/23 20:051 AMP V38300 Surrogate: 2,4,6-Tribromophenol 78.3 Limits: 31-144%09/25/23 20:051 AMP V38300 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 35 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-5 95679 Matrix: 9/18/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 09/26/23 04:53 V38378MSA <0.180 µg/L 0.180 0.500Benzene 1 09/26/23 04:53 V38378MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 09/26/23 04:53 V38378MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/26/23 04:53 V38378MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/26/23 04:53 V38378MSA <1.50 µg/L 1.50 5.00Bromoform 1 09/26/23 04:53 V38378MSA <0.280 µg/L 0.280 1.00Bromomethane 1 09/26/23 04:53 V38378MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 09/26/23 04:53 V38378MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 09/26/23 04:53 V38378MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/26/23 04:53 V38378MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/26/23 04:53 V38378MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/26/23 04:53 V38378MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/26/23 04:53 V38378MSA <0.430 µg/L 0.430 1.00Chloroethane 1 09/26/23 04:53 V38378MSA <0.220 µg/L 0.220 0.500Chloroform 1 09/26/23 04:53 V38378MSA <0.220 µg/L 0.220 0.500Chloromethane 1 09/26/23 04:53 V38378MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/26/23 04:53 V38378MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/26/23 04:53 V38378MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/26/23 04:53 V38378MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/26/23 04:53 V38378MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/26/23 04:53 V38378MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 09/26/23 04:53 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 36 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-5 95679 Matrix: 9/18/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/26/23 04:53 V38378MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/26/23 04:53 V38378MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/26/23 04:53 V38378MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 09/26/23 04:53 V38378MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/26/23 04:53 V38378MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/26/23 04:53 V38378MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/26/23 04:53 V38378MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/26/23 04:53 V38378MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/26/23 04:53 V38378MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/26/23 04:53 V38378MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/26/23 04:53 V38378MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/26/23 04:53 V38378MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/26/23 04:53 V38378MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/26/23 04:53 V38378MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/26/23 04:53 V38378MSA <42.0 µg/L 42.0 200Ethanol 1 09/26/23 04:53 V38378MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 09/26/23 04:53 V38378MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/26/23 04:53 V38378MSA <0.380 µg/L 0.380 1.002-Hexanone 1 09/26/23 04:53 V38378MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 09/26/23 04:53 V38378MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/26/23 04:53 V38378MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/26/23 04:53 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 37 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-5 95679 Matrix: 9/18/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/26/23 04:53 V38378MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/26/23 04:53 V38378MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 09/26/23 04:53 V38378MSA <0.470 µg/L 0.470 1.00Naphthalene 1 09/26/23 04:53 V38378MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 09/26/23 04:53 V38378MSA <0.220 µg/L 0.220 0.500Styrene 1 09/26/23 04:53 V38378MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/26/23 04:53 V38378MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/26/23 04:53 V38378MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/26/23 04:53 V38378MSA <0.220 µg/L 0.220 0.500Toluene 1 09/26/23 04:53 V38378MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/26/23 04:53 V38378MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/26/23 04:53 V38378MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/26/23 04:53 V38378MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/26/23 04:53 V38378MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 09/26/23 04:53 V38378MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/26/23 04:53 V38378MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/26/23 04:53 V38378MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/26/23 04:53 V38378MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/26/23 04:53 V38378MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/26/23 04:53 V38378MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 09/26/23 04:53 V38378MSA <0.210 µg/L 0.210 0.500o-Xylene 1 09/26/23 04:53 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 38 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-5 95679 Matrix: 9/18/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 09/26/23 04:53 V38378MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 09/26/23 04:53 V38378 Surrogate: 4-Bromofluorobenzene 90.6 Limits: 70-130%09/26/23 04:531 MSA V38378 Surrogate: Dibromofluoromethane 104 Limits: 70-130%09/26/23 04:531 MSA V38378 Surrogate: 1,2-Dichloroethane - d4 112 Limits: 70-130%09/26/23 04:531 MSA V38378 Surrogate: Toluene-d8 97.6 Limits: 70-130%09/26/23 04:531 MSA V38378 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <0.302 µg/L 0.302 2.00Acenaphthene 1 09/25/23 19:42 V38300AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 09/25/23 19:42 V38300AMP <0.836 µg/L 0.836 2.00Anthracene 1 09/25/23 19:42 V38300AMP <1.32 M µg/L 1.32 10.0Benzidine 1 09/25/23 19:42 V38300AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 09/25/23 19:42 V38300AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 09/25/23 19:42 V38300AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 09/25/23 19:42 V38300AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 09/25/23 19:42 V38300AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 09/25/23 19:42 V38300AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 09/25/23 19:42 V38300AMP <0.684 µg/L 0.684 5.00Benzyl alcohol 1 09/25/23 19:42 V38300AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 09/25/23 19:42 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 39 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-5 95679 Matrix: 9/18/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 09/25/23 19:42 V38300AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 09/25/23 19:42 V38300AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 09/25/23 19:42 V38300AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 09/25/23 19:42 V38300AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 09/25/23 19:42 V38300AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 09/25/23 19:42 V38300AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 09/25/23 19:42 V38300AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 09/25/23 19:42 V38300AMP <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 09/25/23 19:42 V38300AMP <0.405 µg/L 0.405 2.00Chrysene 1 09/25/23 19:42 V38300AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 09/25/23 19:42 V38300AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 09/25/23 19:42 V38300AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 09/25/23 19:42 V38300AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 09/25/23 19:42 V38300AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 09/25/23 19:42 V38300AMP <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 09/25/23 19:42 V38300AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 09/25/23 19:42 V38300AMP 5.15 µg/L 0.745 5.00Diethyl phthalate 1 09/25/23 19:42 V38300AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 09/25/23 19:42 V38300AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 09/25/23 19:42 V38300AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 09/25/23 19:42 V38300AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 09/25/23 19:42 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 40 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-5 95679 Matrix: 9/18/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 09/25/23 19:42 V38300AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 09/25/23 19:42 V38300AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 09/25/23 19:42 V38300AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 09/25/23 19:42 V38300AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 09/25/23 19:42 V38300AMP <0.807 µg/L 0.807 2.00Fluorene 1 09/25/23 19:42 V38300AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 09/25/23 19:42 V38300AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 09/25/23 19:42 V38300AMP <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 09/25/23 19:42 V38300AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 09/25/23 19:42 V38300AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 09/25/23 19:42 V38300AMP <0.444 µg/L 0.444 5.00Isophorone 1 09/25/23 19:42 V38300AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 09/25/23 19:42 V38300AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 09/25/23 19:42 V38300AMP <0.728 µg/L 0.728 2.00Naphthalene 1 09/25/23 19:42 V38300AMP <0.905 µg/L 0.905 5.00Nitrobenzene 1 09/25/23 19:42 V38300AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 09/25/23 19:42 V38300AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 09/25/23 19:42 V38300AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 09/25/23 19:42 V38300AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 09/25/23 19:42 V38300AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 09/25/23 19:42 V38300AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 09/25/23 19:42 V38300AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 41 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:MW-5 95679 Matrix: 9/18/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38276 09/25/23 10:51 <0.651 µg/L 0.651 5.00Phenol 1 09/25/23 19:42 V38300AMP <0.434 µg/L 0.434 2.00Pyrene 1 09/25/23 19:42 V38300AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 09/25/23 19:42 V38300AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 09/25/23 19:42 V38300AMP 625.1Surrogate: Phenol-d5 17.7 Limits: 10-63%09/25/23 19:421 AMP Surrogate: 2-Fluorobiphenyl 52.8 Limits: 49-118%09/25/23 19:421 AMP V38300 Surrogate: 2-Fluorophenol 26.1 Limits: 22-84%09/25/23 19:421 AMP V38300 Surrogate: Nitrobenzene-d5 53.8 Limits: 43-123%09/25/23 19:421 AMP V38300 Surrogate: 4-Terphenyl-d14 71.0 Limits: 49-151%09/25/23 19:421 AMP V38300 Surrogate: 2,4,6-Tribromophenol 71.1 Limits: 31-144%09/25/23 19:421 AMP V38300 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 42 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:DW-1 95680 Matrix: 9/19/2023 10:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 09/26/23 08:11 V38378MSA <0.180 µg/L 0.180 0.500Benzene 1 09/26/23 08:11 V38378MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 09/26/23 08:11 V38378MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/26/23 08:11 V38378MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/26/23 08:11 V38378MSA <1.50 µg/L 1.50 5.00Bromoform 1 09/26/23 08:11 V38378MSA <0.280 µg/L 0.280 1.00Bromomethane 1 09/26/23 08:11 V38378MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 09/26/23 08:11 V38378MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 09/26/23 08:11 V38378MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/26/23 08:11 V38378MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/26/23 08:11 V38378MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/26/23 08:11 V38378MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/26/23 08:11 V38378MSA <0.430 µg/L 0.430 1.00Chloroethane 1 09/26/23 08:11 V38378MSA <0.220 µg/L 0.220 0.500Chloroform 1 09/26/23 08:11 V38378MSA <0.220 µg/L 0.220 0.500Chloromethane 1 09/26/23 08:11 V38378MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/26/23 08:11 V38378MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/26/23 08:11 V38378MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/26/23 08:11 V38378MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/26/23 08:11 V38378MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/26/23 08:11 V38378MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 09/26/23 08:11 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 43 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:DW-1 95680 Matrix: 9/19/2023 10:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/26/23 08:11 V38378MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/26/23 08:11 V38378MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/26/23 08:11 V38378MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 09/26/23 08:11 V38378MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/26/23 08:11 V38378MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/26/23 08:11 V38378MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/26/23 08:11 V38378MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/26/23 08:11 V38378MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/26/23 08:11 V38378MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/26/23 08:11 V38378MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/26/23 08:11 V38378MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/26/23 08:11 V38378MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/26/23 08:11 V38378MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/26/23 08:11 V38378MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/26/23 08:11 V38378MSA <42.0 µg/L 42.0 200Ethanol 1 09/26/23 08:11 V38378MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 09/26/23 08:11 V38378MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/26/23 08:11 V38378MSA <0.380 µg/L 0.380 1.002-Hexanone 1 09/26/23 08:11 V38378MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 09/26/23 08:11 V38378MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/26/23 08:11 V38378MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/26/23 08:11 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 44 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:DW-1 95680 Matrix: 9/19/2023 10:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/26/23 08:11 V38378MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/26/23 08:11 V38378MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 09/26/23 08:11 V38378MSA <0.470 µg/L 0.470 1.00Naphthalene 1 09/26/23 08:11 V38378MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 09/26/23 08:11 V38378MSA <0.220 µg/L 0.220 0.500Styrene 1 09/26/23 08:11 V38378MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/26/23 08:11 V38378MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/26/23 08:11 V38378MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/26/23 08:11 V38378MSA <0.220 µg/L 0.220 0.500Toluene 1 09/26/23 08:11 V38378MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/26/23 08:11 V38378MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/26/23 08:11 V38378MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/26/23 08:11 V38378MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/26/23 08:11 V38378MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 09/26/23 08:11 V38378MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/26/23 08:11 V38378MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/26/23 08:11 V38378MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/26/23 08:11 V38378MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/26/23 08:11 V38378MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/26/23 08:11 V38378MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 09/26/23 08:11 V38378MSA <0.210 µg/L 0.210 0.500o-Xylene 1 09/26/23 08:11 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 45 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:DW-1 95680 Matrix: 9/19/2023 10:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 09/26/23 08:11 V38378MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 09/26/23 08:11 V38378 Surrogate: 4-Bromofluorobenzene 94.2 Limits: 70-130%09/26/23 08:111 MSA V38378 Surrogate: Dibromofluoromethane 104 Limits: 70-130%09/26/23 08:111 MSA V38378 Surrogate: 1,2-Dichloroethane - d4 113 Limits: 70-130%09/26/23 08:111 MSA V38378 Surrogate: Toluene-d8 99.0 Limits: 70-130%09/26/23 08:111 MSA V38378 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.302 µg/L 0.302 2.00Acenaphthene 1 09/26/23 20:23 V38372AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 09/26/23 20:23 V38372AMP <0.836 µg/L 0.836 2.00Anthracene 1 09/26/23 20:23 V38372AMP <1.32 M µg/L 1.32 10.0Benzidine 1 09/26/23 20:23 V38372AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 09/26/23 20:23 V38372AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 09/26/23 20:23 V38372AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 09/26/23 20:23 V38372AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 09/26/23 20:23 V38372AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 09/26/23 20:23 V38372AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 09/26/23 20:23 V38372AMP <0.684 µg/L 0.684 5.00Benzyl alcohol 1 09/26/23 20:23 V38372AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 09/26/23 20:23 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 46 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:DW-1 95680 Matrix: 9/19/2023 10:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 09/26/23 20:23 V38372AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 09/26/23 20:23 V38372AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 09/26/23 20:23 V38372AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 09/26/23 20:23 V38372AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 09/26/23 20:23 V38372AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 09/26/23 20:23 V38372AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 09/26/23 20:23 V38372AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 09/26/23 20:23 V38372AMP <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 09/26/23 20:23 V38372AMP <0.405 µg/L 0.405 2.00Chrysene 1 09/26/23 20:23 V38372AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 09/26/23 20:23 V38372AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 09/26/23 20:23 V38372AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 09/26/23 20:23 V38372AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 09/26/23 20:23 V38372AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 09/26/23 20:23 V38372AMP <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 09/26/23 20:23 V38372AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 09/26/23 20:23 V38372AMP 11.9 µg/L 0.745 5.00Diethyl phthalate 1 09/26/23 20:23 V38372AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 09/26/23 20:23 V38372AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 09/26/23 20:23 V38372AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 09/26/23 20:23 V38372AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 09/26/23 20:23 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 47 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:DW-1 95680 Matrix: 9/19/2023 10:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 09/26/23 20:23 V38372AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 09/26/23 20:23 V38372AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 09/26/23 20:23 V38372AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 09/26/23 20:23 V38372AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 09/26/23 20:23 V38372AMP <0.807 µg/L 0.807 2.00Fluorene 1 09/26/23 20:23 V38372AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 09/26/23 20:23 V38372AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 09/26/23 20:23 V38372AMP <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 09/26/23 20:23 V38372AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 09/26/23 20:23 V38372AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 09/26/23 20:23 V38372AMP <0.444 µg/L 0.444 5.00Isophorone 1 09/26/23 20:23 V38372AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 09/26/23 20:23 V38372AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 09/26/23 20:23 V38372AMP <0.728 µg/L 0.728 2.00Naphthalene 1 09/26/23 20:23 V38372AMP <0.905 µg/L 0.905 5.00Nitrobenzene 1 09/26/23 20:23 V38372AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 09/26/23 20:23 V38372AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 09/26/23 20:23 V38372AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 09/26/23 20:23 V38372AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 09/26/23 20:23 V38372AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 09/26/23 20:23 V38372AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 09/26/23 20:23 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 48 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:DW-1 95680 Matrix: 9/19/2023 10:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.651 µg/L 0.651 5.00Phenol 1 09/26/23 20:23 V38372AMP <0.434 µg/L 0.434 2.00Pyrene 1 09/26/23 20:23 V38372AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 09/26/23 20:23 V38372AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 09/26/23 20:23 V38372AMP 625.1Surrogate: Phenol-d5 24.9 Limits: 10-63%09/26/23 20:231 AMP Surrogate: 2-Fluorobiphenyl 57.4 Limits: 49-118%09/26/23 20:231 AMP V38372 Surrogate: 2-Fluorophenol 36.5 Limits: 22-84%09/26/23 20:231 AMP V38372 Surrogate: Nitrobenzene-d5 52.0 Limits: 43-123%09/26/23 20:231 AMP V38372 Surrogate: 4-Terphenyl-d14 69.8 Limits: 49-151%09/26/23 20:231 AMP V38372 Surrogate: 2,4,6-Tribromophenol 71.0 Limits: 31-144%09/26/23 20:231 AMP V38372 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 49 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:UPSTREAM 95681 Matrix: 9/19/2023 12:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 09/26/23 05:17 V38378MSA <0.180 µg/L 0.180 0.500Benzene 1 09/26/23 05:17 V38378MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 09/26/23 05:17 V38378MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/26/23 05:17 V38378MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/26/23 05:17 V38378MSA <1.50 µg/L 1.50 5.00Bromoform 1 09/26/23 05:17 V38378MSA <0.280 µg/L 0.280 1.00Bromomethane 1 09/26/23 05:17 V38378MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 09/26/23 05:17 V38378MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 09/26/23 05:17 V38378MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/26/23 05:17 V38378MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/26/23 05:17 V38378MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/26/23 05:17 V38378MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/26/23 05:17 V38378MSA <0.430 µg/L 0.430 1.00Chloroethane 1 09/26/23 05:17 V38378MSA <0.220 µg/L 0.220 0.500Chloroform 1 09/26/23 05:17 V38378MSA <0.220 µg/L 0.220 0.500Chloromethane 1 09/26/23 05:17 V38378MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/26/23 05:17 V38378MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/26/23 05:17 V38378MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/26/23 05:17 V38378MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/26/23 05:17 V38378MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/26/23 05:17 V38378MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 09/26/23 05:17 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 50 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:UPSTREAM 95681 Matrix: 9/19/2023 12:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/26/23 05:17 V38378MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/26/23 05:17 V38378MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/26/23 05:17 V38378MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 09/26/23 05:17 V38378MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/26/23 05:17 V38378MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/26/23 05:17 V38378MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/26/23 05:17 V38378MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/26/23 05:17 V38378MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/26/23 05:17 V38378MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/26/23 05:17 V38378MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/26/23 05:17 V38378MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/26/23 05:17 V38378MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/26/23 05:17 V38378MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/26/23 05:17 V38378MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/26/23 05:17 V38378MSA <42.0 µg/L 42.0 200Ethanol 1 09/26/23 05:17 V38378MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 09/26/23 05:17 V38378MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/26/23 05:17 V38378MSA <0.380 µg/L 0.380 1.002-Hexanone 1 09/26/23 05:17 V38378MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 09/26/23 05:17 V38378MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/26/23 05:17 V38378MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/26/23 05:17 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 51 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:UPSTREAM 95681 Matrix: 9/19/2023 12:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/26/23 05:17 V38378MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/26/23 05:17 V38378MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 09/26/23 05:17 V38378MSA <0.470 µg/L 0.470 1.00Naphthalene 1 09/26/23 05:17 V38378MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 09/26/23 05:17 V38378MSA <0.220 µg/L 0.220 0.500Styrene 1 09/26/23 05:17 V38378MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/26/23 05:17 V38378MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/26/23 05:17 V38378MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/26/23 05:17 V38378MSA <0.220 µg/L 0.220 0.500Toluene 1 09/26/23 05:17 V38378MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/26/23 05:17 V38378MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/26/23 05:17 V38378MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/26/23 05:17 V38378MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/26/23 05:17 V38378MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 09/26/23 05:17 V38378MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/26/23 05:17 V38378MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/26/23 05:17 V38378MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/26/23 05:17 V38378MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/26/23 05:17 V38378MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/26/23 05:17 V38378MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 09/26/23 05:17 V38378MSA <0.210 µg/L 0.210 0.500o-Xylene 1 09/26/23 05:17 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 52 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:UPSTREAM 95681 Matrix: 9/19/2023 12:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 09/26/23 05:17 V38378MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 09/26/23 05:17 V38378 Surrogate: 4-Bromofluorobenzene 92.2 Limits: 70-130%09/26/23 05:171 MSA V38378 Surrogate: Dibromofluoromethane 99.6 Limits: 70-130%09/26/23 05:171 MSA V38378 Surrogate: 1,2-Dichloroethane - d4 113 Limits: 70-130%09/26/23 05:171 MSA V38378 Surrogate: Toluene-d8 96.4 Limits: 70-130%09/26/23 05:171 MSA V38378 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.302 µg/L 0.302 2.00Acenaphthene 1 09/26/23 21:56 V38372AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 09/26/23 21:56 V38372AMP <0.836 µg/L 0.836 2.00Anthracene 1 09/26/23 21:56 V38372AMP <1.32 M µg/L 1.32 10.0Benzidine 1 09/26/23 21:56 V38372AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 09/26/23 21:56 V38372AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 09/26/23 21:56 V38372AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 09/26/23 21:56 V38372AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 09/26/23 21:56 V38372AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 09/26/23 21:56 V38372AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 09/26/23 21:56 V38372AMP <0.684 µg/L 0.684 5.00Benzyl alcohol 1 09/26/23 21:56 V38372AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 09/26/23 21:56 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 53 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:UPSTREAM 95681 Matrix: 9/19/2023 12:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 09/26/23 21:56 V38372AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 09/26/23 21:56 V38372AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 09/26/23 21:56 V38372AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 09/26/23 21:56 V38372AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 09/26/23 21:56 V38372AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 09/26/23 21:56 V38372AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 09/26/23 21:56 V38372AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 09/26/23 21:56 V38372AMP <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 09/26/23 21:56 V38372AMP <0.405 µg/L 0.405 2.00Chrysene 1 09/26/23 21:56 V38372AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 09/26/23 21:56 V38372AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 09/26/23 21:56 V38372AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 09/26/23 21:56 V38372AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 09/26/23 21:56 V38372AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 09/26/23 21:56 V38372AMP <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 09/26/23 21:56 V38372AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 09/26/23 21:56 V38372AMP <0.745 µg/L 0.745 5.00Diethyl phthalate 1 09/26/23 21:56 V38372AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 09/26/23 21:56 V38372AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 09/26/23 21:56 V38372AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 09/26/23 21:56 V38372AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 09/26/23 21:56 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 54 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:UPSTREAM 95681 Matrix: 9/19/2023 12:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 09/26/23 21:56 V38372AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 09/26/23 21:56 V38372AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 09/26/23 21:56 V38372AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 09/26/23 21:56 V38372AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 09/26/23 21:56 V38372AMP <0.807 µg/L 0.807 2.00Fluorene 1 09/26/23 21:56 V38372AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 09/26/23 21:56 V38372AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 09/26/23 21:56 V38372AMP <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 09/26/23 21:56 V38372AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 09/26/23 21:56 V38372AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 09/26/23 21:56 V38372AMP <0.444 µg/L 0.444 5.00Isophorone 1 09/26/23 21:56 V38372AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 09/26/23 21:56 V38372AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 09/26/23 21:56 V38372AMP <0.728 µg/L 0.728 2.00Naphthalene 1 09/26/23 21:56 V38372AMP <0.905 µg/L 0.905 5.00Nitrobenzene 1 09/26/23 21:56 V38372AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 09/26/23 21:56 V38372AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 09/26/23 21:56 V38372AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 09/26/23 21:56 V38372AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 09/26/23 21:56 V38372AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 09/26/23 21:56 V38372AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 09/26/23 21:56 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 55 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:UPSTREAM 95681 Matrix: 9/19/2023 12:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.651 µg/L 0.651 5.00Phenol 1 09/26/23 21:56 V38372AMP <0.434 µg/L 0.434 2.00Pyrene 1 09/26/23 21:56 V38372AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 09/26/23 21:56 V38372AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 09/26/23 21:56 V38372AMP 625.1Surrogate: Phenol-d5 25.2 Limits: 10-63%09/26/23 21:561 AMP Surrogate: 2-Fluorobiphenyl 68.2 Limits: 49-118%09/26/23 21:561 AMP V38372 Surrogate: 2-Fluorophenol 39.6 Limits: 22-84%09/26/23 21:561 AMP V38372 Surrogate: Nitrobenzene-d5 64.2 Limits: 43-123%09/26/23 21:561 AMP V38372 Surrogate: 4-Terphenyl-d14 80.4 Limits: 49-151%09/26/23 21:561 AMP V38372 Surrogate: 2,4,6-Tribromophenol 76.2 Limits: 31-144%09/26/23 21:561 AMP V38372 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 56 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Edge of Bank 95682 Matrix: 9/19/2023 12:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 09/26/23 05:42 V38378MSA <0.180 µg/L 0.180 0.500Benzene 1 09/26/23 05:42 V38378MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 09/26/23 05:42 V38378MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/26/23 05:42 V38378MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/26/23 05:42 V38378MSA <1.50 µg/L 1.50 5.00Bromoform 1 09/26/23 05:42 V38378MSA <0.280 µg/L 0.280 1.00Bromomethane 1 09/26/23 05:42 V38378MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 09/26/23 05:42 V38378MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 09/26/23 05:42 V38378MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/26/23 05:42 V38378MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/26/23 05:42 V38378MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/26/23 05:42 V38378MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/26/23 05:42 V38378MSA <0.430 µg/L 0.430 1.00Chloroethane 1 09/26/23 05:42 V38378MSA <0.220 µg/L 0.220 0.500Chloroform 1 09/26/23 05:42 V38378MSA <0.220 µg/L 0.220 0.500Chloromethane 1 09/26/23 05:42 V38378MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/26/23 05:42 V38378MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/26/23 05:42 V38378MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/26/23 05:42 V38378MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/26/23 05:42 V38378MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/26/23 05:42 V38378MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 09/26/23 05:42 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 57 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Edge of Bank 95682 Matrix: 9/19/2023 12:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/26/23 05:42 V38378MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/26/23 05:42 V38378MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/26/23 05:42 V38378MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 09/26/23 05:42 V38378MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/26/23 05:42 V38378MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/26/23 05:42 V38378MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/26/23 05:42 V38378MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/26/23 05:42 V38378MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/26/23 05:42 V38378MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/26/23 05:42 V38378MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/26/23 05:42 V38378MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/26/23 05:42 V38378MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/26/23 05:42 V38378MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/26/23 05:42 V38378MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/26/23 05:42 V38378MSA <42.0 µg/L 42.0 200Ethanol 1 09/26/23 05:42 V38378MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 09/26/23 05:42 V38378MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/26/23 05:42 V38378MSA <0.380 µg/L 0.380 1.002-Hexanone 1 09/26/23 05:42 V38378MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 09/26/23 05:42 V38378MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/26/23 05:42 V38378MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/26/23 05:42 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 58 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Edge of Bank 95682 Matrix: 9/19/2023 12:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/26/23 05:42 V38378MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/26/23 05:42 V38378MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 09/26/23 05:42 V38378MSA <0.470 µg/L 0.470 1.00Naphthalene 1 09/26/23 05:42 V38378MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 09/26/23 05:42 V38378MSA <0.220 µg/L 0.220 0.500Styrene 1 09/26/23 05:42 V38378MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/26/23 05:42 V38378MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/26/23 05:42 V38378MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/26/23 05:42 V38378MSA <0.220 µg/L 0.220 0.500Toluene 1 09/26/23 05:42 V38378MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/26/23 05:42 V38378MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/26/23 05:42 V38378MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/26/23 05:42 V38378MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/26/23 05:42 V38378MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 09/26/23 05:42 V38378MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/26/23 05:42 V38378MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/26/23 05:42 V38378MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/26/23 05:42 V38378MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/26/23 05:42 V38378MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/26/23 05:42 V38378MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 09/26/23 05:42 V38378MSA <0.210 µg/L 0.210 0.500o-Xylene 1 09/26/23 05:42 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 59 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Edge of Bank 95682 Matrix: 9/19/2023 12:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 09/26/23 05:42 V38378MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 09/26/23 05:42 V38378 Surrogate: 4-Bromofluorobenzene 92.8 Limits: 70-130%09/26/23 05:421 MSA V38378 Surrogate: Dibromofluoromethane 106 Limits: 70-130%09/26/23 05:421 MSA V38378 Surrogate: 1,2-Dichloroethane - d4 114 Limits: 70-130%09/26/23 05:421 MSA V38378 Surrogate: Toluene-d8 97.8 Limits: 70-130%09/26/23 05:421 MSA V38378 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.302 µg/L 0.302 2.00Acenaphthene 1 09/26/23 21:33 V38372AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 09/26/23 21:33 V38372AMP <0.836 µg/L 0.836 2.00Anthracene 1 09/26/23 21:33 V38372AMP <1.32 M µg/L 1.32 10.0Benzidine 1 09/26/23 21:33 V38372AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 09/26/23 21:33 V38372AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 09/26/23 21:33 V38372AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 09/26/23 21:33 V38372AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 09/26/23 21:33 V38372AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 09/26/23 21:33 V38372AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 09/26/23 21:33 V38372AMP <0.684 µg/L 0.684 5.00Benzyl alcohol 1 09/26/23 21:33 V38372AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 09/26/23 21:33 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 60 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Edge of Bank 95682 Matrix: 9/19/2023 12:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 09/26/23 21:33 V38372AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 09/26/23 21:33 V38372AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 09/26/23 21:33 V38372AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 09/26/23 21:33 V38372AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 09/26/23 21:33 V38372AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 09/26/23 21:33 V38372AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 09/26/23 21:33 V38372AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 09/26/23 21:33 V38372AMP <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 09/26/23 21:33 V38372AMP <0.405 µg/L 0.405 2.00Chrysene 1 09/26/23 21:33 V38372AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 09/26/23 21:33 V38372AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 09/26/23 21:33 V38372AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 09/26/23 21:33 V38372AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 09/26/23 21:33 V38372AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 09/26/23 21:33 V38372AMP <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 09/26/23 21:33 V38372AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 09/26/23 21:33 V38372AMP <0.745 µg/L 0.745 5.00Diethyl phthalate 1 09/26/23 21:33 V38372AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 09/26/23 21:33 V38372AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 09/26/23 21:33 V38372AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 09/26/23 21:33 V38372AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 09/26/23 21:33 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 61 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Edge of Bank 95682 Matrix: 9/19/2023 12:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 09/26/23 21:33 V38372AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 09/26/23 21:33 V38372AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 09/26/23 21:33 V38372AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 09/26/23 21:33 V38372AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 09/26/23 21:33 V38372AMP <0.807 µg/L 0.807 2.00Fluorene 1 09/26/23 21:33 V38372AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 09/26/23 21:33 V38372AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 09/26/23 21:33 V38372AMP <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 09/26/23 21:33 V38372AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 09/26/23 21:33 V38372AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 09/26/23 21:33 V38372AMP <0.444 µg/L 0.444 5.00Isophorone 1 09/26/23 21:33 V38372AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 09/26/23 21:33 V38372AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 09/26/23 21:33 V38372AMP <0.728 µg/L 0.728 2.00Naphthalene 1 09/26/23 21:33 V38372AMP <0.905 µg/L 0.905 5.00Nitrobenzene 1 09/26/23 21:33 V38372AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 09/26/23 21:33 V38372AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 09/26/23 21:33 V38372AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 09/26/23 21:33 V38372AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 09/26/23 21:33 V38372AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 09/26/23 21:33 V38372AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 09/26/23 21:33 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 62 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Edge of Bank 95682 Matrix: 9/19/2023 12:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.651 µg/L 0.651 5.00Phenol 1 09/26/23 21:33 V38372AMP <0.434 µg/L 0.434 2.00Pyrene 1 09/26/23 21:33 V38372AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 09/26/23 21:33 V38372AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 09/26/23 21:33 V38372AMP 625.1Surrogate: Phenol-d5 26.4 Limits: 10-63%09/26/23 21:331 AMP Surrogate: 2-Fluorobiphenyl 62.0 Limits: 49-118%09/26/23 21:331 AMP V38372 Surrogate: 2-Fluorophenol 40.6 Limits: 22-84%09/26/23 21:331 AMP V38372 Surrogate: Nitrobenzene-d5 58.2 Limits: 43-123%09/26/23 21:331 AMP V38372 Surrogate: 4-Terphenyl-d14 75.8 Limits: 49-151%09/26/23 21:331 AMP V38372 Surrogate: 2,4,6-Tribromophenol 72.4 Limits: 31-144%09/26/23 21:331 AMP V38372 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 63 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Downstream 95683 Matrix: 9/19/2023 12:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <1.80 µg/L 1.80 10.0Acetone 1 09/26/23 06:07 V38378MSA <0.180 µg/L 0.180 0.500Benzene 1 09/26/23 06:07 V38378MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 09/26/23 06:07 V38378MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 09/26/23 06:07 V38378MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 09/26/23 06:07 V38378MSA <1.50 µg/L 1.50 5.00Bromoform 1 09/26/23 06:07 V38378MSA <0.280 µg/L 0.280 1.00Bromomethane 1 09/26/23 06:07 V38378MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 09/26/23 06:07 V38378MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 09/26/23 06:07 V38378MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 09/26/23 06:07 V38378MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 09/26/23 06:07 V38378MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 09/26/23 06:07 V38378MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 09/26/23 06:07 V38378MSA <0.430 µg/L 0.430 1.00Chloroethane 1 09/26/23 06:07 V38378MSA <0.220 µg/L 0.220 0.500Chloroform 1 09/26/23 06:07 V38378MSA <0.220 µg/L 0.220 0.500Chloromethane 1 09/26/23 06:07 V38378MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 09/26/23 06:07 V38378MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 09/26/23 06:07 V38378MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 09/26/23 06:07 V38378MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 09/26/23 06:07 V38378MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 09/26/23 06:07 V38378MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 09/26/23 06:07 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 64 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Downstream 95683 Matrix: 9/19/2023 12:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 09/26/23 06:07 V38378MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 09/26/23 06:07 V38378MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 09/26/23 06:07 V38378MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 09/26/23 06:07 V38378MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 09/26/23 06:07 V38378MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 09/26/23 06:07 V38378MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 09/26/23 06:07 V38378MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 09/26/23 06:07 V38378MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 09/26/23 06:07 V38378MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 09/26/23 06:07 V38378MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 09/26/23 06:07 V38378MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 09/26/23 06:07 V38378MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 09/26/23 06:07 V38378MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 09/26/23 06:07 V38378MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 09/26/23 06:07 V38378MSA <42.0 µg/L 42.0 200Ethanol 1 09/26/23 06:07 V38378MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 09/26/23 06:07 V38378MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 09/26/23 06:07 V38378MSA <0.380 µg/L 0.380 1.002-Hexanone 1 09/26/23 06:07 V38378MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 09/26/23 06:07 V38378MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 09/26/23 06:07 V38378MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 09/26/23 06:07 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 65 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Downstream 95683 Matrix: 9/19/2023 12:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 09/26/23 06:07 V38378MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 09/26/23 06:07 V38378MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 09/26/23 06:07 V38378MSA <0.470 µg/L 0.470 1.00Naphthalene 1 09/26/23 06:07 V38378MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 09/26/23 06:07 V38378MSA <0.220 µg/L 0.220 0.500Styrene 1 09/26/23 06:07 V38378MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 09/26/23 06:07 V38378MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 09/26/23 06:07 V38378MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 09/26/23 06:07 V38378MSA <0.220 µg/L 0.220 0.500Toluene 1 09/26/23 06:07 V38378MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 09/26/23 06:07 V38378MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 09/26/23 06:07 V38378MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 09/26/23 06:07 V38378MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 09/26/23 06:07 V38378MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 09/26/23 06:07 V38378MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 09/26/23 06:07 V38378MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 09/26/23 06:07 V38378MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 09/26/23 06:07 V38378MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 09/26/23 06:07 V38378MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 09/26/23 06:07 V38378MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 09/26/23 06:07 V38378MSA <0.210 µg/L 0.210 0.500o-Xylene 1 09/26/23 06:07 V38378MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 66 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Downstream 95683 Matrix: 9/19/2023 12:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V38377 09/25/23 14:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 09/26/23 06:07 V38378MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 09/26/23 06:07 V38378 Surrogate: 4-Bromofluorobenzene 91.2 Limits: 70-130%09/26/23 06:071 MSA V38378 Surrogate: Dibromofluoromethane 101 Limits: 70-130%09/26/23 06:071 MSA V38378 Surrogate: 1,2-Dichloroethane - d4 109 Limits: 70-130%09/26/23 06:071 MSA V38378 Surrogate: Toluene-d8 97.6 Limits: 70-130%09/26/23 06:071 MSA V38378 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.302 µg/L 0.302 2.00Acenaphthene 1 09/26/23 21:10 V38372AMP <0.297 µg/L 0.297 2.00Acenaphthylene 1 09/26/23 21:10 V38372AMP <0.836 µg/L 0.836 2.00Anthracene 1 09/26/23 21:10 V38372AMP <1.32 M µg/L 1.32 10.0Benzidine 1 09/26/23 21:10 V38372AMP <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 09/26/23 21:10 V38372AMP <1.02 µg/L 1.02 2.00Benzo(a)pyrene 1 09/26/23 21:10 V38372AMP <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 09/26/23 21:10 V38372AMP <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 09/26/23 21:10 V38372AMP <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 09/26/23 21:10 V38372AMP <1.10 µg/L 1.10 10.0Benzoic Acid 1 09/26/23 21:10 V38372AMP <0.684 µg/L 0.684 5.00Benzyl alcohol 1 09/26/23 21:10 V38372AMP <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 09/26/23 21:10 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 67 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Downstream 95683 Matrix: 9/19/2023 12:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 09/26/23 21:10 V38372AMP <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 09/26/23 21:10 V38372AMP <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 09/26/23 21:10 V38372AMP <1.11 µg/L 1.11 5.004-Bromophenyl phenyl ether 1 09/26/23 21:10 V38372AMP <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 09/26/23 21:10 V38372AMP <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 09/26/23 21:10 V38372AMP <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 09/26/23 21:10 V38372AMP <0.938 µg/L 0.938 10.02-Chlorophenol 1 09/26/23 21:10 V38372AMP <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 09/26/23 21:10 V38372AMP <0.405 µg/L 0.405 2.00Chrysene 1 09/26/23 21:10 V38372AMP <0.434 µg/L 0.434 2.00Dibenz(a,h)anthracene 1 09/26/23 21:10 V38372AMP <0.856 µg/L 0.856 5.00Dibenzofuran 1 09/26/23 21:10 V38372AMP <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 09/26/23 21:10 V38372AMP <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 09/26/23 21:10 V38372AMP <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 09/26/23 21:10 V38372AMP <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 09/26/23 21:10 V38372AMP <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 09/26/23 21:10 V38372AMP <0.745 µg/L 0.745 5.00Diethyl phthalate 1 09/26/23 21:10 V38372AMP <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 09/26/23 21:10 V38372AMP <1.57 µg/L 1.57 20.02,4-Dimethylphenol 1 09/26/23 21:10 V38372AMP <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 09/26/23 21:10 V38372AMP <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 09/26/23 21:10 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 68 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Downstream 95683 Matrix: 9/19/2023 12:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 09/26/23 21:10 V38372AMP <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 09/26/23 21:10 V38372AMP <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 09/26/23 21:10 V38372AMP <1.65 µg/L 1.65 5.00Di-n-Octyl Phthalate 1 09/26/23 21:10 V38372AMP <0.250 µg/L 0.250 2.00Fluoranthene 1 09/26/23 21:10 V38372AMP <0.807 µg/L 0.807 2.00Fluorene 1 09/26/23 21:10 V38372AMP <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 09/26/23 21:10 V38372AMP <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 09/26/23 21:10 V38372AMP <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 09/26/23 21:10 V38372AMP <1.76 µg/L 1.76 5.00Hexachloroethane 1 09/26/23 21:10 V38372AMP <0.477 µg/L 0.477 2.00Indeno(1,2,3-cd)pyrene 1 09/26/23 21:10 V38372AMP <0.444 µg/L 0.444 5.00Isophorone 1 09/26/23 21:10 V38372AMP <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 09/26/23 21:10 V38372AMP <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 09/26/23 21:10 V38372AMP <0.728 µg/L 0.728 2.00Naphthalene 1 09/26/23 21:10 V38372AMP <0.905 µg/L 0.905 5.00Nitrobenzene 1 09/26/23 21:10 V38372AMP <0.493 µg/L 0.493 5.002-Nitrophenol 1 09/26/23 21:10 V38372AMP <1.23 µg/L 1.23 10.04-Nitrophenol 1 09/26/23 21:10 V38372AMP <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 09/26/23 21:10 V38372AMP <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 09/26/23 21:10 V38372AMP <1.43 µg/L 1.43 5.00Pentachlorophenol 1 09/26/23 21:10 V38372AMP <0.428 µg/L 0.428 2.00Phenanthrene 1 09/26/23 21:10 V38372AMP Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 69 of 102 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-263-0010 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 09/20/2023 DOT-476 Report Date : 09/29/2023 Sample ID : Lab No : Sampled:Downstream 95683 Matrix: 9/19/2023 12:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V38350 09/26/23 11:13 <0.651 µg/L 0.651 5.00Phenol 1 09/26/23 21:10 V38372AMP <0.434 µg/L 0.434 2.00Pyrene 1 09/26/23 21:10 V38372AMP <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 09/26/23 21:10 V38372AMP <1.32 µg/L 1.32 5.002,4,6-Trichlorophenol 1 09/26/23 21:10 V38372AMP 625.1Surrogate: Phenol-d5 26.8 Limits: 10-63%09/26/23 21:101 AMP Surrogate: 2-Fluorobiphenyl 63.6 Limits: 49-118%09/26/23 21:101 AMP V38372 Surrogate: 2-Fluorophenol 41.8 Limits: 22-84%09/26/23 21:101 AMP V38372 Surrogate: Nitrobenzene-d5 62.4 Limits: 43-123%09/26/23 21:101 AMP V38372 Surrogate: 4-Terphenyl-d14 80.0 Limits: 49-151%09/26/23 21:101 AMP V38372 Surrogate: 2,4,6-Tribromophenol 75.5 Limits: 31-144%09/26/23 21:101 AMP V38372 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLMinimum valueM Page 70 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38378QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38377 Associated Lab Samples: 95676, 95677, 95679, 95680, 95681, 95682, 95683 LRB-V38377 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 02:4910.01.80<1.80µg/LAcetone 09/26/23 02:490.5000.180<0.180µg/LBenzene 09/26/23 02:490.5000.210<0.210µg/LBromobenzene 09/26/23 02:491.000.420<0.420µg/LBromochloromethane 09/26/23 02:490.5000.160<0.160µg/LBromodichloromethane 09/26/23 02:495.001.50<1.50µg/LBromoform 09/26/23 02:491.000.280<0.280µg/LBromomethane 09/26/23 02:490.5000.180<0.180µg/Ln-Butylbenzene 09/26/23 02:490.5000.200<0.200µg/Lsec-Butyl benzene 09/26/23 02:492.000.920<0.920µg/Ltert-Butyl benzene 09/26/23 02:490.5000.180<0.180µg/LCarbon Tetrachloride 09/26/23 02:490.5000.190<0.190µg/LChlorobenzene 09/26/23 02:490.5000.190<0.190µg/LChlorodibromomethane 09/26/23 02:491.000.430<0.430µg/LChloroethane 09/26/23 02:490.5000.220<0.220µg/LChloroform 09/26/23 02:490.5000.220<0.220µg/LChloromethane 09/26/23 02:490.5000.200<0.200µg/L2-Chlorotoluene 09/26/23 02:490.5000.200<0.200µg/L4-Chlorotoluene 09/26/23 02:490.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 09/26/23 02:492.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 09/26/23 02:490.5000.200<0.200µg/L1,2-Dibromoethane 09/26/23 02:490.5000.230<0.230µg/LDibromomethane 09/26/23 02:490.5000.220<0.220µg/L1,2-Dichlorobenzene 09/26/23 02:490.5000.190<0.190µg/L1,3-Dichlorobenzene 09/26/23 02:490.5000.210<0.210µg/L1,4-Dichlorobenzene 09/26/23 02:495.001.20<1.20µg/LDichlorodifluoromethane 09/26/23 02:490.5000.240<0.240µg/L1,1-Dichloroethane Page 1 of 30Date:09/29/2023 08:35 AM Page 71 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38378QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38377 Associated Lab Samples: 95676, 95677, 95679, 95680, 95681, 95682, 95683 LRB-V38377 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 02:490.5000.150<0.150µg/L1,2-Dichloroethane 09/26/23 02:490.5000.150<0.150µg/L1,1-Dichloroethene 09/26/23 02:490.5000.200<0.200µg/Lcis-1,2-Dichloroethene 09/26/23 02:490.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 09/26/23 02:490.5000.190<0.190µg/L1,2-Dichloropropane 09/26/23 02:490.5000.130<0.130µg/L1,3-Dichloropropane 09/26/23 02:492.000.210<0.210µg/L2,2-Dichloropropane 09/26/23 02:490.5000.200<0.200µg/L1,1-Dichloropropene 09/26/23 02:490.5000.210<0.210µg/Lcis-1,3-Dichloropropene 09/26/23 02:490.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 09/26/23 02:4920042.0<42.0µg/LEthanol 09/26/23 02:490.5000.170<0.170µg/LEthylbenzene 09/26/23 02:493.000.350<0.350µg/LHexachlorobutadiene 09/26/23 02:491.000.380<0.380µg/L2-Hexanone 09/26/23 02:490.5000.180<0.180µg/LIsopropylbenzene 09/26/23 02:490.5000.089<0.089µg/L4-Isopropyl toluene 09/26/23 02:495.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 09/26/23 02:491.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 09/26/23 02:491.000.078<0.078µg/L4-Methyl-2-Pentanone 09/26/23 02:492.000.330<0.330µg/LMethylene Chloride 09/26/23 02:491.000.470<0.470µg/LNaphthalene 09/26/23 02:490.5000.190<0.190µg/Ln-Propylbenzene 09/26/23 02:490.5000.220<0.220µg/LStyrene 09/26/23 02:490.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 09/26/23 02:490.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 09/26/23 02:490.5000.220<0.220µg/LTetrachloroethene 09/26/23 02:490.5000.220<0.220µg/LToluene Page 2 of 30Date:09/29/2023 08:35 AM Page 72 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38378QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38377 Associated Lab Samples: 95676, 95677, 95679, 95680, 95681, 95682, 95683 LRB-V38377 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 02:490.5000.380<0.380µg/L1,2,3-Trichlorobenzene 09/26/23 02:490.5000.310<0.310µg/L1,2,4-Trichlorobenzene 09/26/23 02:490.5000.160<0.160µg/L1,1,1-Trichloroethane 09/26/23 02:490.5000.096<0.096µg/L1,1,2-Trichloroethane 09/26/23 02:490.5000.180<0.180µg/LTrichloroethene 09/26/23 02:490.5000.180<0.180µg/LTrichlorofluoromethane 09/26/23 02:490.5000.270<0.270µg/L1,2,3-Trichloropropane 09/26/23 02:490.5000.190<0.190µg/L1,2,4-Trimethylbenzene 09/26/23 02:490.5000.180<0.180µg/L1,3,5-Trimethylbenzene 09/26/23 02:495.001.00<1.00µg/LVinyl Acetate 09/26/23 02:490.5000.170<0.170µg/LVinyl Chloride 09/26/23 02:490.5000.210<0.210µg/Lo-Xylene 09/26/23 02:491.000.420<0.420µg/Lm,p-Xylene 09/26/23 02:494-Bromofluorobenzene (S)91.0 70-130 09/26/23 02:49Dibromofluoromethane (S)100 70-130 09/26/23 02:491,2-Dichloroethane - d4 (S)106 70-130 09/26/23 02:49Toluene-d8 (S)98.6 70-130 LCS-V38377Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 134*26.820.0µg/LCarbon Tetrachloride 70-130 Page 3 of 30* QC Fail Date:09/29/2023 08:35 AM Page 73 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38378QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38377 LCS-V38377 LCSD-V38377Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 38.5 96.296.738.740.0µg/LAcetone 40-160 0.5 20.0 19.7 98.598.519.720.0µg/LBenzene 70-130 0.0 20.0 20.5 10310020.020.0µg/LBromobenzene 70-130 2.4 20.0 22.5 11311122.120.0µg/LBromochloromethane 70-130 1.7 20.0 22.1 11110721.320.0µg/LBromodichloromethane 70-130 3.6 20.0 24.0 12011723.320.0µg/LBromoform 70-130 2.9 20.0 21.7 10996.519.320.0µg/LBromomethane 60-140 11.7 20.0 20.7 10410220.420.0µg/Ln-Butylbenzene 70-130 1.4 20.0 20.4 10210120.220.0µg/Lsec-Butyl benzene 70-130 0.9 20.0 21.7 10910520.920.0µg/Ltert-Butyl benzene 70-130 3.7 20.0 21.9 11010721.420.0µg/LChlorobenzene 70-130 2.3 20.0 24.1 12111422.720.0µg/LChlorodibromomethane 70-130 5.9 20.0 14.3 71.573.014.620.0µg/LChloroethane 60-140 2.0 20.0 21.3 10711021.920.0µg/LChloroform 70-130 2.7 20.0 13.0 65.061.012.220.0µg/LChloromethane 60-140 6.3 20.0 19.4 97.097.019.420.0µg/L2-Chlorotoluene 70-130 0.0 20.0 20.4 10210120.220.0µg/L4-Chlorotoluene 70-130 0.9 20.0 16.5 82.578.515.720.0µg/LDi-Isopropyl Ether (DIPE)70-130 4.9 20.0 22.5 11311122.220.0µg/L1,2-Dibromo-3-Chloropropane 70-130 1.3 20.0 19.9 99.510220.420.0µg/L1,2-Dibromoethane 70-130 2.4 20.0 23.0 11510220.420.0µg/LDibromomethane 70-130 11.9 20.0 22.0 11011122.220.0µg/L1,2-Dichlorobenzene 70-130 0.9 20.0 22.1 11110921.720.0µg/L1,3-Dichlorobenzene 70-130 1.8 20.0 21.1 10610821.620.0µg/L1,4-Dichlorobenzene 70-130 2.3 20.0 12.9 64.563.512.720.0µg/LDichlorodifluoromethane 60-140 1.5 20.0 19.1 95.596.519.320.0µg/L1,1-Dichloroethane 70-130 1.0 20.0 Page 4 of 30Date:09/29/2023 08:35 AM Page 74 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38378QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38377 LCS-V38377 LCSD-V38377Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 22.7 11411422.820.0µg/L1,2-Dichloroethane 70-130 0.4 20.0 22.2 11198.019.620.0µg/L1,1-Dichloroethene 70-130 12.4 20.0 19.8 99.099.519.920.0µg/Lcis-1,2-Dichloroethene 70-130 0.5 20.0 19.6 98.010020.020.0µg/Ltrans-1,2-Dichloroethene 70-130 2.0 20.0 16.6 83.084.016.820.0µg/L1,2-Dichloropropane 70-130 1.1 20.0 19.7 98.597.019.420.0µg/L1,3-Dichloropropane 70-130 1.5 20.0 20.3 10210520.920.0µg/L2,2-Dichloropropane 70-130 2.9 20.0 22.6 11311122.120.0µg/L1,1-Dichloropropene 70-130 2.2 20.0 19.6 98.096.019.220.0µg/Lcis-1,3-Dichloropropene 70-130 2.0 20.0 20.9 10510520.920.0µg/Ltrans-1,3-Dichloropropene 70-130 0.0 20.0 440 88.079.2396500µg/LEthanol 60-140 10.5 20.0 20.6 10310120.120.0µg/LEthylbenzene 70-130 2.4 20.0 24.7 12412023.920.0µg/LHexachlorobutadiene 70-130 3.2 20.0 17.2 86.090.018.020.0µg/L2-Hexanone 60-140 4.5 20.0 22.2 11110821.620.0µg/LIsopropylbenzene 70-130 2.7 20.0 22.2 11111122.220.0µg/L4-Isopropyl toluene 70-130 0.0 20.0 16.9 84.579.515.920.0µg/LMethyl Ethyl Ketone (MEK)60-140 6.0 20.0 21.9 11010821.520.0µg/LMethyl tert-butyl ether (MTBE)70-130 1.8 20.0 16.4 82.078.515.720.0µg/L4-Methyl-2-Pentanone 60-140 4.3 20.0 16.8 84.082.016.420.0µg/LMethylene Chloride 70-130 2.4 20.0 22.3 11211823.620.0µg/LNaphthalene 70-130 5.6 20.0 19.9 99.599.519.920.0µg/Ln-Propylbenzene 70-130 0.0 20.0 22.5 11310821.620.0µg/LStyrene 70-130 4.0 20.0 24.6 12311322.620.0µg/L1,1,1,2-Tetrachloroethane 70-130 8.4 20.0 17.5 87.583.516.720.0µg/L1,1,2,2-Tetrachloroethane 70-130 4.6 20.0 23.5 11811923.720.0µg/LTetrachloroethene 70-130 0.8 20.0 Page 5 of 30Date:09/29/2023 08:35 AM Page 75 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38378QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38377 LCS-V38377 LCSD-V38377Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.6 10310120.220.0µg/LToluene 70-130 1.9 20.0 24.8 124143*28.520.0µg/L1,2,3-Trichlorobenzene 70-130 13.8 20.0 26.2 131*12825.620.0µg/L1,2,4-Trichlorobenzene 70-130 2.3 20.0 24.2 12112024.020.0µg/L1,1,1-Trichloroethane 70-130 0.8 20.0 20.8 10497.519.520.0µg/L1,1,2-Trichloroethane 70-130 6.4 20.0 23.1 11611222.420.0µg/LTrichloroethene 70-130 3.0 20.0 24.0 12012424.720.0µg/LTrichlorofluoromethane 60-140 2.8 20.0 20.7 10410220.320.0µg/L1,2,3-Trichloropropane 70-130 1.9 20.0 21.8 10910821.520.0µg/L1,2,4-Trimethylbenzene 70-130 1.3 20.0 21.4 10710721.420.0µg/L1,3,5-Trimethylbenzene 70-130 0.0 20.0 19.8 99.078.515.720.0µg/LVinyl Acetate 60-140 23.0*20.0 13.3 66.567.513.520.0µg/LVinyl Chloride 60-140 1.4 20.0 21.1 10610420.720.0µg/Lo-Xylene 70-130 1.9 20.0 45.5 11411144.540.0µg/Lm,p-Xylene 70-130 2.2 20.0 91.090.04-Bromofluorobenzene (S)70-130 106101Dibromofluoromethane (S)70-130 1081091,2-Dichloroethane - d4 (S)70-130 99.4100Toluene-d8 (S)70-130 Page 6 of 30* QC Fail Date:09/29/2023 08:35 AM Page 76 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38416QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38414 Associated Lab Samples: 95678 LRB-V38414 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 16:5910.01.80<1.80µg/LAcetone 09/26/23 16:590.5000.180<0.180µg/LBenzene 09/26/23 16:590.5000.210<0.210µg/LBromobenzene 09/26/23 16:591.000.420<0.420µg/LBromochloromethane 09/26/23 16:590.5000.160<0.160µg/LBromodichloromethane 09/26/23 16:595.001.50<1.50µg/LBromoform 09/26/23 16:591.000.280<0.280µg/LBromomethane 09/26/23 16:590.5000.180<0.180µg/Ln-Butylbenzene 09/26/23 16:590.5000.200<0.200µg/Lsec-Butyl benzene 09/26/23 16:592.000.920<0.920µg/Ltert-Butyl benzene 09/26/23 16:590.5000.180<0.180µg/LCarbon Tetrachloride 09/26/23 16:590.5000.190<0.190µg/LChlorobenzene 09/26/23 16:590.5000.190<0.190µg/LChlorodibromomethane 09/26/23 16:591.000.430<0.430µg/LChloroethane 09/26/23 16:590.5000.220<0.220µg/LChloroform 09/26/23 16:590.5000.220<0.220µg/LChloromethane 09/26/23 16:590.5000.200<0.200µg/L2-Chlorotoluene 09/26/23 16:590.5000.200<0.200µg/L4-Chlorotoluene 09/26/23 16:590.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 09/26/23 16:592.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 09/26/23 16:590.5000.200<0.200µg/L1,2-Dibromoethane 09/26/23 16:590.5000.230<0.230µg/LDibromomethane 09/26/23 16:590.5000.220<0.220µg/L1,2-Dichlorobenzene 09/26/23 16:590.5000.190<0.190µg/L1,3-Dichlorobenzene 09/26/23 16:590.5000.210<0.210µg/L1,4-Dichlorobenzene 09/26/23 16:595.001.20<1.20µg/LDichlorodifluoromethane 09/26/23 16:590.5000.240<0.240µg/L1,1-Dichloroethane Page 7 of 30Date:09/29/2023 08:35 AM Page 77 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38416QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38414 Associated Lab Samples: 95678 LRB-V38414 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 16:590.5000.150<0.150µg/L1,2-Dichloroethane 09/26/23 16:590.5000.150<0.150µg/L1,1-Dichloroethene 09/26/23 16:590.5000.200<0.200µg/Lcis-1,2-Dichloroethene 09/26/23 16:590.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 09/26/23 16:590.5000.190<0.190µg/L1,2-Dichloropropane 09/26/23 16:590.5000.130<0.130µg/L1,3-Dichloropropane 09/26/23 16:592.000.210<0.210µg/L2,2-Dichloropropane 09/26/23 16:590.5000.200<0.200µg/L1,1-Dichloropropene 09/26/23 16:590.5000.210<0.210µg/Lcis-1,3-Dichloropropene 09/26/23 16:590.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 09/26/23 16:5920042.0<42.0µg/LEthanol 09/26/23 16:590.5000.170<0.170µg/LEthylbenzene 09/26/23 16:593.000.350<0.350µg/LHexachlorobutadiene 09/26/23 16:591.000.380<0.380µg/L2-Hexanone 09/26/23 16:590.5000.180<0.180µg/LIsopropylbenzene 09/26/23 16:590.5000.089<0.089µg/L4-Isopropyl toluene 09/26/23 16:595.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 09/26/23 16:591.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 09/26/23 16:591.000.078<0.078µg/L4-Methyl-2-Pentanone 09/26/23 16:592.000.330<0.330µg/LMethylene Chloride 09/26/23 16:591.000.470<0.470µg/LNaphthalene 09/26/23 16:590.5000.190<0.190µg/Ln-Propylbenzene 09/26/23 16:590.5000.220<0.220µg/LStyrene 09/26/23 16:590.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 09/26/23 16:590.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 09/26/23 16:590.5000.220<0.220µg/LTetrachloroethene 09/26/23 16:590.5000.220<0.220µg/LToluene Page 8 of 30Date:09/29/2023 08:35 AM Page 78 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38416QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38414 Associated Lab Samples: 95678 LRB-V38414 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 16:590.5000.380<0.380µg/L1,2,3-Trichlorobenzene 09/26/23 16:590.5000.310<0.310µg/L1,2,4-Trichlorobenzene 09/26/23 16:590.5000.160<0.160µg/L1,1,1-Trichloroethane 09/26/23 16:590.5000.096<0.096µg/L1,1,2-Trichloroethane 09/26/23 16:590.5000.180<0.180µg/LTrichloroethene 09/26/23 16:590.5000.180<0.180µg/LTrichlorofluoromethane 09/26/23 16:590.5000.270<0.270µg/L1,2,3-Trichloropropane 09/26/23 16:590.5000.190<0.190µg/L1,2,4-Trimethylbenzene 09/26/23 16:590.5000.180<0.180µg/L1,3,5-Trimethylbenzene 09/26/23 16:595.001.00<1.00µg/LVinyl Acetate 09/26/23 16:590.5000.170<0.170µg/LVinyl Chloride 09/26/23 16:590.5000.210<0.210µg/Lo-Xylene 09/26/23 16:591.000.420<0.420µg/Lm,p-Xylene 09/26/23 16:594-Bromofluorobenzene (S)92.8 70-130 09/26/23 16:59Dibromofluoromethane (S)100 70-130 09/26/23 16:591,2-Dichloroethane - d4 (S)106 70-130 09/26/23 16:59Toluene-d8 (S)98.4 70-130 LCS-V38414 LCSD-V38414Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 40.0 10011345.140.0µg/LAcetone 40-160 11.9 20.0 18.8 94.096.519.320.0µg/LBenzene 70-130 2.6 20.0 20.1 10199.519.920.0µg/LBromobenzene 70-130 1.0 20.0 21.1 10611422.820.0µg/LBromochloromethane 70-130 7.7 20.0 20.8 10411222.420.0µg/LBromodichloromethane 70-130 7.4 20.0 Page 9 of 30Date:09/29/2023 08:35 AM Page 79 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38416QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38414 LCS-V38414 LCSD-V38414Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 23.5 11812725.320.0µg/LBromoform 70-130 7.3 20.0 18.2 91.099.519.920.0µg/LBromomethane 60-140 8.9 20.0 21.6 10810721.420.0µg/Ln-Butylbenzene 70-130 0.9 20.0 20.5 10310520.920.0µg/Lsec-Butyl benzene 70-130 1.9 20.0 21.5 10811021.920.0µg/Ltert-Butyl benzene 70-130 1.8 20.0 26.6 133*139*27.820.0µg/LCarbon Tetrachloride 70-130 4.4 20.0 21.3 10711222.420.0µg/LChlorobenzene 70-130 5.0 20.0 22.4 11212124.120.0µg/LChlorodibromomethane 70-130 7.3 20.0 13.1 65.565.513.120.0µg/LChloroethane 60-140 0.0 20.0 20.7 10411122.120.0µg/LChloroform 70-130 6.5 20.0 10.7 53.5*58.0*11.620.0µg/LChloromethane 60-140 8.0 20.0 19.9 99.598.519.720.0µg/L2-Chlorotoluene 70-130 1.0 20.0 20.1 10110320.520.0µg/L4-Chlorotoluene 70-130 1.9 20.0 14.7 73.578.515.720.0µg/LDi-Isopropyl Ether (DIPE)70-130 6.5 20.0 24.3 12212024.020.0µg/L1,2-Dibromo-3-Chloropropane 70-130 1.2 20.0 19.6 98.010520.920.0µg/L1,2-Dibromoethane 70-130 6.4 20.0 21.0 10511322.520.0µg/LDibromomethane 70-130 6.8 20.0 21.9 11011623.120.0µg/L1,2-Dichlorobenzene 70-130 5.3 20.0 22.2 11111623.120.0µg/L1,3-Dichlorobenzene 70-130 3.9 20.0 21.5 10810921.820.0µg/L1,4-Dichlorobenzene 70-130 1.3 20.0 11.9 59.5*59.0*11.820.0µg/LDichlorodifluoromethane 60-140 0.8 20.0 18.0 90.096.519.320.0µg/L1,1-Dichloroethane 70-130 6.9 20.0 22.0 11011823.520.0µg/L1,2-Dichloroethane 70-130 6.5 20.0 20.4 10210420.720.0µg/L1,1-Dichloroethene 70-130 1.4 20.0 19.5 97.599.519.920.0µg/Lcis-1,2-Dichloroethene 70-130 2.0 20.0 18.4 92.010120.120.0µg/Ltrans-1,2-Dichloroethene 70-130 8.8 20.0 Page 10 of 30* QC Fail Date:09/29/2023 08:35 AM Page 80 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38416QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38414 LCS-V38414 LCSD-V38414Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 15.5 77.584.016.820.0µg/L1,2-Dichloropropane 70-130 8.0 20.0 18.9 94.596.519.320.0µg/L1,3-Dichloropropane 70-130 2.0 20.0 24.3 122135*26.920.0µg/L2,2-Dichloropropane 70-130 10.1 20.0 21.1 10611623.220.0µg/L1,1-Dichloropropene 70-130 9.4 20.0 19.2 96.010120.120.0µg/Lcis-1,3-Dichloropropene 70-130 4.5 20.0 20.6 10311222.420.0µg/Ltrans-1,3-Dichloropropene 70-130 8.3 20.0 316 63.270.4352500µg/LEthanol 60-140 10.7 20.0 19.9 99.510220.420.0µg/LEthylbenzene 70-130 2.4 20.0 27.0 135*132*26.320.0µg/LHexachlorobutadiene 70-130 2.6 20.0 17.0 85.099.519.920.0µg/L2-Hexanone 60-140 15.7 20.0 21.9 11011122.120.0µg/LIsopropylbenzene 70-130 0.9 20.0 22.8 11411723.420.0µg/L4-Isopropyl toluene 70-130 2.5 20.0 16.0 80.085.517.120.0µg/LMethyl Ethyl Ketone (MEK)60-140 6.6 20.0 20.5 10310921.720.0µg/LMethyl tert-butyl ether (MTBE)70-130 5.6 20.0 15.2 76.086.017.220.0µg/L4-Methyl-2-Pentanone 60-140 12.3 20.0 14.9 74.578.515.720.0µg/LMethylene Chloride 70-130 5.2 20.0 22.2 11112625.220.0µg/LNaphthalene 70-130 12.6 20.0 20.0 10010320.520.0µg/Ln-Propylbenzene 70-130 2.4 20.0 21.5 10810921.820.0µg/LStyrene 70-130 1.3 20.0 22.3 11211823.520.0µg/L1,1,1,2-Tetrachloroethane 70-130 5.2 20.0 16.9 84.594.018.820.0µg/L1,1,2,2-Tetrachloroethane 70-130 10.6 20.0 23.2 11612023.920.0µg/LTetrachloroethene 70-130 2.9 20.0 19.4 97.010220.420.0µg/LToluene 70-130 5.0 20.0 27.0 135*158*31.620.0µg/L1,2,3-Trichlorobenzene 70-130 15.6 20.0 26.8 134*142*28.320.0µg/L1,2,4-Trichlorobenzene 70-130 5.4 20.0 24.4 12212525.020.0µg/L1,1,1-Trichloroethane 70-130 2.4 20.0 Page 11 of 30* QC Fail Date:09/29/2023 08:35 AM Page 81 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38416QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38414 LCS-V38414 LCSD-V38414Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.2 96.010120.120.0µg/L1,1,2-Trichloroethane 70-130 4.5 20.0 21.9 11011222.320.0µg/LTrichloroethene 70-130 1.8 20.0 24.5 12312424.820.0µg/LTrichlorofluoromethane 60-140 1.2 20.0 18.6 93.099.019.820.0µg/L1,2,3-Trichloropropane 70-130 6.2 20.0 22.2 11111322.520.0µg/L1,2,4-Trimethylbenzene 70-130 1.3 20.0 21.5 10811022.020.0µg/L1,3,5-Trimethylbenzene 70-130 2.2 20.0 22.9 11513226.420.0µg/LVinyl Acetate 60-140 14.1 20.0 11.7 58.5*60.512.120.0µg/LVinyl Chloride 60-140 3.3 20.0 20.7 10410721.420.0µg/Lo-Xylene 70-130 3.3 20.0 44.7 11211445.740.0µg/Lm,p-Xylene 70-130 2.2 20.0 91.891.44-Bromofluorobenzene (S)70-130 103102Dibromofluoromethane (S)70-130 1101101,2-Dichloroethane - d4 (S)70-130 97.697.8Toluene-d8 (S)70-130 Page 12 of 30* QC Fail Date:09/29/2023 08:35 AM Page 82 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38456QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38455 Associated Lab Samples: 95675 LRB-V38455 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/27/23 13:3010.01.80<1.80µg/LAcetone 09/27/23 13:300.5000.180<0.180µg/LBenzene 09/27/23 13:300.5000.210<0.210µg/LBromobenzene 09/27/23 13:301.000.420<0.420µg/LBromochloromethane 09/27/23 13:300.5000.160<0.160µg/LBromodichloromethane 09/27/23 13:305.001.50<1.50µg/LBromoform 09/27/23 13:301.000.280<0.280µg/LBromomethane 09/27/23 13:300.5000.180<0.180µg/Ln-Butylbenzene 09/27/23 13:300.5000.200<0.200µg/Lsec-Butyl benzene 09/27/23 13:302.000.920<0.920µg/Ltert-Butyl benzene 09/27/23 13:300.5000.180<0.180µg/LCarbon Tetrachloride 09/27/23 13:300.5000.190<0.190µg/LChlorobenzene 09/27/23 13:300.5000.190<0.190µg/LChlorodibromomethane 09/27/23 13:301.000.430<0.430µg/LChloroethane 09/27/23 13:300.5000.220<0.220µg/LChloroform 09/27/23 13:300.5000.220<0.220µg/LChloromethane 09/27/23 13:300.5000.200<0.200µg/L2-Chlorotoluene 09/27/23 13:300.5000.200<0.200µg/L4-Chlorotoluene 09/27/23 13:300.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 09/27/23 13:302.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 09/27/23 13:300.5000.200<0.200µg/L1,2-Dibromoethane 09/27/23 13:300.5000.230<0.230µg/LDibromomethane 09/27/23 13:300.5000.220<0.220µg/L1,2-Dichlorobenzene 09/27/23 13:300.5000.190<0.190µg/L1,3-Dichlorobenzene 09/27/23 13:300.5000.210<0.210µg/L1,4-Dichlorobenzene 09/27/23 13:305.001.20<1.20µg/LDichlorodifluoromethane 09/27/23 13:300.5000.240<0.240µg/L1,1-Dichloroethane Page 13 of 30Date:09/29/2023 08:35 AM Page 83 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38456QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38455 Associated Lab Samples: 95675 LRB-V38455 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/27/23 13:300.5000.150<0.150µg/L1,2-Dichloroethane 09/27/23 13:300.5000.150<0.150µg/L1,1-Dichloroethene 09/27/23 13:300.5000.200<0.200µg/Lcis-1,2-Dichloroethene 09/27/23 13:300.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 09/27/23 13:300.5000.190<0.190µg/L1,2-Dichloropropane 09/27/23 13:300.5000.130<0.130µg/L1,3-Dichloropropane 09/27/23 13:302.000.210<0.210µg/L2,2-Dichloropropane 09/27/23 13:300.5000.200<0.200µg/L1,1-Dichloropropene 09/27/23 13:300.5000.210<0.210µg/Lcis-1,3-Dichloropropene 09/27/23 13:300.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 09/27/23 13:3020042.0<42.0µg/LEthanol 09/27/23 13:300.5000.170<0.170µg/LEthylbenzene 09/27/23 13:303.000.350<0.350µg/LHexachlorobutadiene 09/27/23 13:301.000.380<0.380µg/L2-Hexanone 09/27/23 13:300.5000.180<0.180µg/LIsopropylbenzene 09/27/23 13:300.5000.089<0.089µg/L4-Isopropyl toluene 09/27/23 13:305.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 09/27/23 13:301.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 09/27/23 13:301.000.078<0.078µg/L4-Methyl-2-Pentanone 09/27/23 13:302.000.330<0.330µg/LMethylene Chloride 09/27/23 13:301.000.470<0.470µg/LNaphthalene 09/27/23 13:300.5000.190<0.190µg/Ln-Propylbenzene 09/27/23 13:300.5000.220<0.220µg/LStyrene 09/27/23 13:300.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 09/27/23 13:300.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 09/27/23 13:300.5000.220<0.220µg/LTetrachloroethene 09/27/23 13:300.5000.220<0.220µg/LToluene Page 14 of 30Date:09/29/2023 08:35 AM Page 84 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38456QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38455 Associated Lab Samples: 95675 LRB-V38455 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/27/23 13:300.5000.380<0.380µg/L1,2,3-Trichlorobenzene 09/27/23 13:300.5000.310<0.310µg/L1,2,4-Trichlorobenzene 09/27/23 13:300.5000.160<0.160µg/L1,1,1-Trichloroethane 09/27/23 13:300.5000.096<0.096µg/L1,1,2-Trichloroethane 09/27/23 13:300.5000.180<0.180µg/LTrichloroethene 09/27/23 13:300.5000.180<0.180µg/LTrichlorofluoromethane 09/27/23 13:300.5000.270<0.270µg/L1,2,3-Trichloropropane 09/27/23 13:300.5000.190<0.190µg/L1,2,4-Trimethylbenzene 09/27/23 13:300.5000.180<0.180µg/L1,3,5-Trimethylbenzene 09/27/23 13:305.001.00<1.00µg/LVinyl Acetate 09/27/23 13:300.5000.170<0.170µg/LVinyl Chloride 09/27/23 13:300.5000.210<0.210µg/Lo-Xylene 09/27/23 13:301.000.420<0.420µg/Lm,p-Xylene 09/27/23 13:304-Bromofluorobenzene (S)91.0 70-130 09/27/23 13:30Dibromofluoromethane (S)101 70-130 09/27/23 13:301,2-Dichloroethane - d4 (S)110 70-130 09/27/23 13:30Toluene-d8 (S)96.8 70-130 LCS-V38455 LCSD-V38455Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 40.5 10110642.340.0µg/LAcetone 40-160 4.3 20.0 19.3 96.598.019.620.0µg/LBenzene 70-130 1.5 20.0 20.8 10410420.820.0µg/LBromobenzene 70-130 0.0 20.0 21.7 10910621.220.0µg/LBromochloromethane 70-130 2.3 20.0 21.2 10610821.620.0µg/LBromodichloromethane 70-130 1.8 20.0 Page 15 of 30Date:09/29/2023 08:35 AM Page 85 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38456QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38455 LCS-V38455 LCSD-V38455Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 22.8 11411823.620.0µg/LBromoform 70-130 3.4 20.0 19.3 96.593.518.720.0µg/LBromomethane 60-140 3.1 20.0 21.9 11011122.120.0µg/Ln-Butylbenzene 70-130 0.9 20.0 21.0 10510921.720.0µg/Lsec-Butyl benzene 70-130 3.2 20.0 21.6 10811022.020.0µg/Ltert-Butyl benzene 70-130 1.8 20.0 26.7 134*132*26.420.0µg/LCarbon Tetrachloride 70-130 1.1 20.0 22.3 11210821.520.0µg/LChlorobenzene 70-130 3.6 20.0 23.5 11812024.020.0µg/LChlorodibromomethane 70-130 2.1 20.0 14.5 72.567.513.520.0µg/LChloroethane 60-140 7.1 20.0 21.0 10510921.720.0µg/LChloroform 70-130 3.2 20.0 11.4 57.0*57.0*11.420.0µg/LChloromethane 60-140 0.0 20.0 19.9 99.510220.420.0µg/L2-Chlorotoluene 70-130 2.4 20.0 20.4 10210521.020.0µg/L4-Chlorotoluene 70-130 2.8 20.0 15.2 76.077.515.520.0µg/LDi-Isopropyl Ether (DIPE)70-130 1.9 20.0 21.6 10811923.820.0µg/L1,2-Dibromo-3-Chloropropane 70-130 9.6 20.0 18.7 93.597.519.520.0µg/L1,2-Dibromoethane 70-130 4.1 20.0 20.5 10310821.520.0µg/LDibromomethane 70-130 4.7 20.0 22.0 11011222.420.0µg/L1,2-Dichlorobenzene 70-130 1.8 20.0 22.1 11111623.120.0µg/L1,3-Dichlorobenzene 70-130 4.4 20.0 22.0 11011022.020.0µg/L1,4-Dichlorobenzene 70-130 0.0 20.0 10.9 54.5*52.5*10.520.0µg/LDichlorodifluoromethane 60-140 3.7 20.0 19.4 97.096.519.320.0µg/L1,1-Dichloroethane 70-130 0.5 20.0 21.8 10911021.920.0µg/L1,2-Dichloroethane 70-130 0.4 20.0 20.3 10210520.920.0µg/L1,1-Dichloroethene 70-130 2.9 20.0 18.9 94.598.519.720.0µg/Lcis-1,2-Dichloroethene 70-130 4.1 20.0 19.8 99.010220.320.0µg/Ltrans-1,2-Dichloroethene 70-130 2.4 20.0 Page 16 of 30* QC Fail Date:09/29/2023 08:35 AM Page 86 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38456QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38455 LCS-V38455 LCSD-V38455Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 15.8 79.084.016.820.0µg/L1,2-Dichloropropane 70-130 6.1 20.0 18.7 93.596.519.320.0µg/L1,3-Dichloropropane 70-130 3.1 20.0 24.7 12412124.220.0µg/L2,2-Dichloropropane 70-130 2.0 20.0 22.2 11111322.520.0µg/L1,1-Dichloropropene 70-130 1.3 20.0 19.8 99.010120.220.0µg/Lcis-1,3-Dichloropropene 70-130 2.0 20.0 21.2 10610721.420.0µg/Ltrans-1,3-Dichloropropene 70-130 0.9 20.0 366 73.283.6418500µg/LEthanol 60-140 13.2 20.0 20.7 10410520.920.0µg/LEthylbenzene 70-130 0.9 20.0 26.7 134*13026.020.0µg/LHexachlorobutadiene 70-130 2.6 20.0 19.2 96.089.517.920.0µg/L2-Hexanone 60-140 7.0 20.0 22.6 11311322.620.0µg/LIsopropylbenzene 70-130 0.0 20.0 23.2 11611723.320.0µg/L4-Isopropyl toluene 70-130 0.4 20.0 16.9 84.590.018.020.0µg/LMethyl Ethyl Ketone (MEK)60-140 6.3 20.0 19.8 99.010721.420.0µg/LMethyl tert-butyl ether (MTBE)70-130 7.7 20.0 15.9 79.580.516.120.0µg/L4-Methyl-2-Pentanone 60-140 1.2 20.0 15.3 76.583.016.620.0µg/LMethylene Chloride 70-130 8.1 20.0 22.8 11411522.920.0µg/LNaphthalene 70-130 0.4 20.0 20.8 10410420.820.0µg/Ln-Propylbenzene 70-130 0.0 20.0 21.9 11011222.420.0µg/LStyrene 70-130 2.2 20.0 23.9 12011322.620.0µg/L1,1,1,2-Tetrachloroethane 70-130 5.5 20.0 17.9 89.592.518.520.0µg/L1,1,2,2-Tetrachloroethane 70-130 3.2 20.0 24.0 12011422.820.0µg/LTetrachloroethene 70-130 5.1 20.0 19.6 98.010220.420.0µg/LToluene 70-130 4.0 20.0 29.8 149*135*27.020.0µg/L1,2,3-Trichlorobenzene 70-130 9.8 20.0 26.7 134*132*26.320.0µg/L1,2,4-Trichlorobenzene 70-130 1.5 20.0 23.2 11612224.320.0µg/L1,1,1-Trichloroethane 70-130 4.6 20.0 Page 17 of 30* QC Fail Date:09/29/2023 08:35 AM Page 87 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V38456QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V38455 LCS-V38455 LCSD-V38455Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.6 98.098.019.620.0µg/L1,1,2-Trichloroethane 70-130 0.0 20.0 21.5 10810520.920.0µg/LTrichloroethene 70-130 2.8 20.0 23.3 11711823.620.0µg/LTrichlorofluoromethane 60-140 1.2 20.0 20.4 10210621.120.0µg/L1,2,3-Trichloropropane 70-130 3.3 20.0 22.3 11211222.420.0µg/L1,2,4-Trimethylbenzene 70-130 0.4 20.0 22.3 11211523.020.0µg/L1,3,5-Trimethylbenzene 70-130 3.0 20.0 23.9 12014028.020.0µg/LVinyl Acetate 60-140 15.7 20.0 12.5 62.560.512.120.0µg/LVinyl Chloride 60-140 3.2 20.0 21.1 10610521.020.0µg/Lo-Xylene 70-130 0.4 20.0 46.0 11511345.040.0µg/Lm,p-Xylene 70-130 2.1 20.0 92.892.24-Bromofluorobenzene (S)70-130 97.699.2Dibromofluoromethane (S)70-130 1041091,2-Dichloroethane - d4 (S)70-130 98.898.0Toluene-d8 (S)70-130 Page 18 of 30Date:09/29/2023 08:35 AM Page 88 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38300QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38276 Associated Lab Samples: 95676, 95677, 95678, 95679 LRB-V38276 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 15:422.000.302<0.302µg/LAcenaphthene 09/26/23 15:422.000.297<0.297µg/LAcenaphthylene 09/26/23 15:422.000.836<0.836µg/LAnthracene 09/26/23 15:4210.01.32<1.32µg/LBenzidine 09/26/23 15:422.000.637<0.637µg/LBenzo(a)anthracene 09/26/23 15:422.001.02<1.02µg/LBenzo(a)pyrene 09/26/23 15:425.002.49<2.49µg/LBenzo(b)fluoranthene 09/26/23 15:425.001.01<1.01µg/LBenzo(g,h,i)perylene 09/26/23 15:425.001.99<1.99µg/LBenzo(k)fluoranthene 09/26/23 15:4210.01.10<1.10µg/LBenzoic Acid 09/26/23 15:425.000.684<0.684µg/LBenzyl alcohol 09/26/23 15:425.000.468<0.468µg/LBis(2-Chloroethoxy)methane 09/26/23 15:425.001.04<1.04µg/LBis(2-Chloroethyl)ether 09/26/23 15:425.001.08<1.08µg/LBis(2-Chloroisopropyl)ether 09/26/23 15:4210.03.46<3.46µg/LBis(2-ethylhexyl)phthalate 09/26/23 15:425.001.11<1.11µg/L4-Bromophenyl phenyl ether 09/26/23 15:425.001.83<1.83µg/LButyl benzyl phthalate 09/26/23 15:425.001.18<1.18µg/L4-Chloro-3-methylphenol 09/26/23 15:4220.07.38<7.38µg/L2-Chloronaphthalene 09/26/23 15:4210.00.938<0.938µg/L2-Chlorophenol 09/26/23 15:425.001.71<1.71µg/L4-Chlorophenyl phenyl ether 09/26/23 15:422.000.405<0.405µg/LChrysene 09/26/23 15:422.000.434<0.434µg/LDibenz(a,h)anthracene 09/26/23 15:425.000.856<0.856µg/LDibenzofuran 09/26/23 15:425.002.00<2.00µg/L1,2-Dichlorobenzene 09/26/23 15:425.002.00<2.00µg/L1,3-Dichlorobenzene 09/26/23 15:425.002.05<2.05µg/L1,4-Dichlorobenzene Page 19 of 30Date:09/29/2023 08:35 AM Page 89 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38300QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38276 Associated Lab Samples: 95676, 95677, 95678, 95679 LRB-V38276 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 15:425.001.89<1.89µg/L3,3'-Dichlorobenzidine 09/26/23 15:4210.01.46<1.46µg/L2,4-Dichlorophenol 09/26/23 15:425.000.745<0.745µg/LDiethyl phthalate 09/26/23 15:425.000.939<0.939µg/LDimethyl phthalate 09/26/23 15:4220.01.57<1.57µg/L2,4-Dimethylphenol 09/26/23 15:425.002.06<2.06µg/LDi-n-butyl phthalate 09/26/23 15:4210.02.07<2.07µg/L4,6-Dinitro-2-methylphenol 09/26/23 15:4210.01.92<1.92µg/L2,4-Dinitrophenol 09/26/23 15:425.001.11<1.11µg/L2,4-Dinitrotoluene 09/26/23 15:425.000.809<0.809µg/L2,6-Dinitrotoluene 09/26/23 15:425.001.65<1.65µg/LDi-n-Octyl Phthalate 09/26/23 15:422.000.250<0.250µg/LFluoranthene 09/26/23 15:422.000.807<0.807µg/LFluorene 09/26/23 15:425.000.979<0.979µg/LHexachlorobenzene 09/26/23 15:425.002.73<2.73µg/LHexachlorobutadiene 09/26/23 15:425.002.05<2.05µg/LHexachlorocyclopentadiene 09/26/23 15:425.001.76<1.76µg/LHexachloroethane 09/26/23 15:422.000.477<0.477µg/LIndeno(1,2,3-cd)pyrene 09/26/23 15:425.000.444<0.444µg/LIsophorone 09/26/23 15:422.001.14<1.14µg/L1-Methylnaphthalene 09/26/23 15:422.000.666<0.666µg/L2-Methylnaphthalene 09/26/23 15:422.000.728<0.728µg/LNaphthalene 09/26/23 15:425.000.905<0.905µg/LNitrobenzene 09/26/23 15:425.000.493<0.493µg/L2-Nitrophenol 09/26/23 15:4210.01.23<1.23µg/L4-Nitrophenol 09/26/23 15:425.001.10<1.10µg/LN-Nitrosodiphenylamine 09/26/23 15:425.000.641<0.641µg/LN-Nitroso-di-n-propylamine Page 20 of 30Date:09/29/2023 08:35 AM Page 90 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38300QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38276 Associated Lab Samples: 95676, 95677, 95678, 95679 LRB-V38276 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 15:425.001.43<1.43µg/LPentachlorophenol 09/26/23 15:422.000.428<0.428µg/LPhenanthrene 09/26/23 15:425.000.651<0.651µg/LPhenol 09/26/23 15:422.000.434<0.434µg/LPyrene 09/26/23 15:425.002.21<2.21µg/L1,2,4-Trichlorobenzene 09/26/23 15:425.001.32<1.32µg/L2,4,6-Trichlorophenol 09/26/23 15:422-Fluorobiphenyl (S)70.2 49-118 09/26/23 15:422-Fluorophenol (S)37.3 22-84 09/26/23 15:42Nitrobenzene-d5 (S)66.4 43-123 09/26/23 15:424-Terphenyl-d14 (S)84.8 49-151 09/26/23 15:422,4,6-Tribromophenol (S)68.3 31-144 09/26/23 15:42Phenol-d5 (S)24.1 10-63 LCS-V38276 LCSD-V38276Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 32.4 64.866.233.150.0µg/LAcenaphthene 47-145 2.1 20.0 33.6 67.268.834.450.0µg/LAcenaphthylene 33-145 2.3 20.0 41.3 82.682.641.350.0µg/LAnthracene 27-133 0.0 20.0 15.3 30.614.2*7.1250.0µg/LBenzidine 15-150 72.9*20.0 40.6 81.280.440.250.0µg/LBenzo(a)anthracene 33-143 0.9 20.0 44.7 89.489.844.950.0µg/LBenzo(a)pyrene 17-163 0.4 20.0 42.8 85.686.243.150.0µg/LBenzo(b)fluoranthene 24-159 0.6 20.0 38.7 77.477.438.750.0µg/LBenzo(g,h,i)perylene 10-219 0.0 20.0 41.0 82.082.441.250.0µg/LBenzo(k)fluoranthene 11-162 0.4 20.0 15.2 30.428.214.150.0µg/LBenzoic Acid 10-125 7.5 20.0 Page 21 of 30* QC Fail Date:09/29/2023 08:35 AM Page 91 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38300QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38276 LCS-V38276 LCSD-V38276Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 31.8 63.661.230.650.0µg/LBenzyl alcohol 16-107 3.8 20.0 33.1 66.264.032.050.0µg/LBis(2-Chloroethoxy)methane 33-184 3.3 20.0 31.8 63.664.032.050.0µg/LBis(2-Chloroethyl)ether 12-158 0.6 20.0 31.0 62.064.032.050.0µg/LBis(2-Chloroisopropyl)ether 36-166 3.1 20.0 41.0 82.081.840.950.0µg/LBis(2-ethylhexyl)phthalate 10-158 0.2 20.0 37.6 75.275.237.650.0µg/L4-Bromophenyl phenyl ether 53-127 0.0 20.0 42.1 84.282.841.450.0µg/LButyl benzyl phthalate 10-152 1.6 20.0 33.1 66.264.032.050.0µg/L4-Chloro-3-methylphenol 22-147 3.3 20.0 31.8 63.664.832.450.0µg/L2-Chloronaphthalene 60-118 1.8 20.0 31.1 62.261.430.750.0µg/L2-Chlorophenol 23-134 1.2 20.0 35.2 70.472.236.150.0µg/L4-Chlorophenyl phenyl ether 25-158 2.5 20.0 40.9 81.881.840.950.0µg/LChrysene 17-168 0.0 20.0 29.7 59.461.430.750.0µg/LDibenz(a,h)anthracene 10-227 3.3 20.0 33.7 67.469.234.650.0µg/LDibenzofuran 39-114 2.6 20.0 24.4 48.850.225.150.0µg/L1,2-Dichlorobenzene 32-129 2.8 20.0 23.4 46.847.423.750.0µg/L1,3-Dichlorobenzene 20-124 1.2 20.0 23.8 47.647.823.950.0µg/L1,4-Dichlorobenzene 20-124 0.4 20.0 41.7 83.481.840.950.0µg/L3,3'-Dichlorobenzidine 10-262 1.9 20.0 35.1 70.268.634.350.0µg/L2,4-Dichlorophenol 39-135 2.3 20.0 39.8 79.680.440.250.0µg/LDiethyl phthalate 10-114 1.0 20.0 40.0 80.081.040.550.0µg/LDimethyl phthalate 10-112 1.2 20.0 42.3 84.676.838.450.0µg/L2,4-Dimethylphenol 32-119 9.6 20.0 44.6 89.289.844.950.0µg/LDi-n-butyl phthalate 10-118 0.6 20.0 43.6 87.285.442.750.0µg/L4,6-Dinitro-2-methylphenol 10-181 2.0 20.0 40.6 81.275.637.850.0µg/L2,4-Dinitrophenol 10-191 7.1 20.0 40.1 80.281.040.550.0µg/L2,4-Dinitrotoluene 39-139 0.9 20.0 Page 22 of 30Date:09/29/2023 08:35 AM Page 92 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38300QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38276 LCS-V38276 LCSD-V38276Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 40.0 80.081.040.550.0µg/L2,6-Dinitrotoluene 50-158 1.2 20.0 43.1 86.285.842.950.0µg/LDi-n-Octyl Phthalate 10-146 0.4 20.0 38.7 77.477.438.750.0µg/LFluoranthene 26-137 0.0 20.0 36.1 72.273.636.850.0µg/LFluorene 59-121 1.9 20.0 38.8 77.678.239.150.0µg/LHexachlorobenzene 10-152 0.7 20.0 22.7 45.446.023.050.0µg/LHexachlorobutadiene 24-116 1.3 20.0 26.4 52.853.226.650.0µg/LHexachlorocyclopentadiene 32-117 0.7 20.0 21.9 43.845.022.550.0µg/LHexachloroethane 40-113 2.7 20.0 38.6 77.278.639.350.0µg/LIndeno(1,2,3-cd)pyrene 10-171 1.7 20.0 30.8 61.660.430.250.0µg/LIsophorone 21-196 1.9 20.0 25.4 50.850.825.450.0µg/L1-Methylnaphthalene 40-135 0.0 20.0 25.2 50.450.625.350.0µg/L2-Methylnaphthalene 18-121 0.3 20.0 25.4 50.850.425.250.0µg/LNaphthalene 21-133 0.7 20.0 27.8 55.654.227.150.0µg/LNitrobenzene 35-180 2.5 20.0 30.2 60.459.829.950.0µg/L2-Nitrophenol 29-182 0.9 20.0 18.1 36.236.618.350.0µg/L4-Nitrophenol 10-132 1.0 20.0 48.5 97.096.248.150.0µg/LN-Nitrosodiphenylamine 69-152 0.8 20.0 33.7 67.467.633.850.0µg/LN-Nitroso-di-n-propylamine 10-230 0.2 20.0 49.6 99.299.649.850.0µg/LPentachlorophenol 14-176 0.4 20.0 39.3 78.679.039.550.0µg/LPhenanthrene 54-120 0.5 20.0 14.8 29.628.614.350.0µg/LPhenol 10-112 3.4 20.0 40.1 80.280.240.150.0µg/LPyrene 52-115 0.0 20.0 23.1 46.246.023.050.0µg/L1,2,4-Trichlorobenzene 44-142 0.4 20.0 37.4 74.876.238.150.0µg/L2,4,6-Trichlorophenol 37-144 1.8 20.0 69.271.62-Fluorobiphenyl (S)49-118 33.633.92-Fluorophenol (S)22-84 Page 23 of 30Date:09/29/2023 08:35 AM Page 93 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38300QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38276 LCS-V38276 LCSD-V38276Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 56.256.6Nitrobenzene-d5 (S)43-123 80.681.84-Terphenyl-d14 (S)49-151 71.274.52,4,6-Tribromophenol (S)31-144 22.322.3Phenol-d5 (S)10-63 Page 24 of 30Date:09/29/2023 08:35 AM Page 94 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38372QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38350 Associated Lab Samples: 95675, 95680, 95681, 95682, 95683 LRB-V38350 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 18:512.000.302<0.302µg/LAcenaphthene 09/26/23 18:512.000.297<0.297µg/LAcenaphthylene 09/26/23 18:512.000.836<0.836µg/LAnthracene 09/26/23 18:5110.01.32<1.32µg/LBenzidine 09/26/23 18:512.000.637<0.637µg/LBenzo(a)anthracene 09/26/23 18:512.001.02<1.02µg/LBenzo(a)pyrene 09/26/23 18:515.002.49<2.49µg/LBenzo(b)fluoranthene 09/26/23 18:515.001.01<1.01µg/LBenzo(g,h,i)perylene 09/26/23 18:515.001.99<1.99µg/LBenzo(k)fluoranthene 09/26/23 18:5110.01.10<1.10µg/LBenzoic Acid 09/26/23 18:515.000.684<0.684µg/LBenzyl alcohol 09/26/23 18:515.000.468<0.468µg/LBis(2-Chloroethoxy)methane 09/26/23 18:515.001.04<1.04µg/LBis(2-Chloroethyl)ether 09/26/23 18:515.001.08<1.08µg/LBis(2-Chloroisopropyl)ether 09/26/23 18:5110.03.46<3.46µg/LBis(2-ethylhexyl)phthalate 09/26/23 18:515.001.11<1.11µg/L4-Bromophenyl phenyl ether 09/26/23 18:515.001.83<1.83µg/LButyl benzyl phthalate 09/26/23 18:515.001.18<1.18µg/L4-Chloro-3-methylphenol 09/26/23 18:5120.07.38<7.38µg/L2-Chloronaphthalene 09/26/23 18:5110.00.938<0.938µg/L2-Chlorophenol 09/26/23 18:515.001.71<1.71µg/L4-Chlorophenyl phenyl ether 09/26/23 18:512.000.405<0.405µg/LChrysene 09/26/23 18:512.000.434<0.434µg/LDibenz(a,h)anthracene 09/26/23 18:515.000.856<0.856µg/LDibenzofuran 09/26/23 18:515.002.00<2.00µg/L1,2-Dichlorobenzene 09/26/23 18:515.002.00<2.00µg/L1,3-Dichlorobenzene 09/26/23 18:515.002.05<2.05µg/L1,4-Dichlorobenzene Page 25 of 30Date:09/29/2023 08:35 AM Page 95 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38372QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38350 Associated Lab Samples: 95675, 95680, 95681, 95682, 95683 LRB-V38350 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 18:515.001.89<1.89µg/L3,3'-Dichlorobenzidine 09/26/23 18:5110.01.46<1.46µg/L2,4-Dichlorophenol 09/26/23 18:515.000.745<0.745µg/LDiethyl phthalate 09/26/23 18:515.000.939<0.939µg/LDimethyl phthalate 09/26/23 18:5120.01.57<1.57µg/L2,4-Dimethylphenol 09/26/23 18:515.002.06<2.06µg/LDi-n-butyl phthalate 09/26/23 18:5110.02.07<2.07µg/L4,6-Dinitro-2-methylphenol 09/26/23 18:5110.01.92<1.92µg/L2,4-Dinitrophenol 09/26/23 18:515.001.11<1.11µg/L2,4-Dinitrotoluene 09/26/23 18:515.000.809<0.809µg/L2,6-Dinitrotoluene 09/26/23 18:515.001.65<1.65µg/LDi-n-Octyl Phthalate 09/26/23 18:512.000.250<0.250µg/LFluoranthene 09/26/23 18:512.000.807<0.807µg/LFluorene 09/26/23 18:515.000.979<0.979µg/LHexachlorobenzene 09/26/23 18:515.002.73<2.73µg/LHexachlorobutadiene 09/26/23 18:515.002.05<2.05µg/LHexachlorocyclopentadiene 09/26/23 18:515.001.76<1.76µg/LHexachloroethane 09/26/23 18:512.000.477<0.477µg/LIndeno(1,2,3-cd)pyrene 09/26/23 18:515.000.444<0.444µg/LIsophorone 09/26/23 18:512.001.14<1.14µg/L1-Methylnaphthalene 09/26/23 18:512.000.666<0.666µg/L2-Methylnaphthalene 09/26/23 18:512.000.728<0.728µg/LNaphthalene 09/26/23 18:515.000.905<0.905µg/LNitrobenzene 09/26/23 18:515.000.493<0.493µg/L2-Nitrophenol 09/26/23 18:5110.01.23<1.23µg/L4-Nitrophenol 09/26/23 18:515.001.10<1.10µg/LN-Nitrosodiphenylamine 09/26/23 18:515.000.641<0.641µg/LN-Nitroso-di-n-propylamine Page 26 of 30Date:09/29/2023 08:35 AM Page 96 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38372QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38350 Associated Lab Samples: 95675, 95680, 95681, 95682, 95683 LRB-V38350 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 09/26/23 18:515.001.43<1.43µg/LPentachlorophenol 09/26/23 18:512.000.428<0.428µg/LPhenanthrene 09/26/23 18:515.000.651<0.651µg/LPhenol 09/26/23 18:512.000.434<0.434µg/LPyrene 09/26/23 18:515.002.21<2.21µg/L1,2,4-Trichlorobenzene 09/26/23 18:515.001.32<1.32µg/L2,4,6-Trichlorophenol 09/26/23 18:512-Fluorobiphenyl (S)70.8 49-118 09/26/23 18:512-Fluorophenol (S)48.5 22-84 09/26/23 18:51Nitrobenzene-d5 (S)67.6 43-123 09/26/23 18:514-Terphenyl-d14 (S)84.8 49-151 09/26/23 18:512,4,6-Tribromophenol (S)80.4 31-144 09/26/23 18:51Phenol-d5 (S)31.1 10-63 LCS-V38350 LCSD-V38350Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 36.1 72.272.036.050.0µg/LAcenaphthene 47-145 0.2 20.0 36.6 73.271.835.950.0µg/LAcenaphthylene 33-145 1.9 20.0 39.8 79.681.240.650.0µg/LAnthracene 27-133 1.9 20.0 4.36 8.7*12.7*6.3750.0µg/LBenzidine 15-150 37.4*20.0 38.9 77.879.639.850.0µg/LBenzo(a)anthracene 33-143 2.2 20.0 43.5 87.087.843.950.0µg/LBenzo(a)pyrene 17-163 0.9 20.0 38.0 76.077.638.850.0µg/LBenzo(b)fluoranthene 24-159 2.0 20.0 40.1 80.280.440.250.0µg/LBenzo(g,h,i)perylene 10-219 0.2 20.0 42.9 85.886.443.250.0µg/LBenzo(k)fluoranthene 11-162 0.6 20.0 16.2 32.433.816.950.0µg/LBenzoic Acid 10-125 4.2 20.0 Page 27 of 30* QC Fail Date:09/29/2023 08:35 AM Page 97 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38372QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38350 LCS-V38350 LCSD-V38350Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 35.0 70.071.235.650.0µg/LBenzyl alcohol 16-107 1.6 20.0 34.9 69.871.235.650.0µg/LBis(2-Chloroethoxy)methane 33-184 1.9 20.0 29.8 59.661.030.550.0µg/LBis(2-Chloroethyl)ether 12-158 2.3 20.0 31.3 62.664.032.050.0µg/LBis(2-Chloroisopropyl)ether 36-166 2.2 20.0 42.9 85.884.642.350.0µg/LBis(2-ethylhexyl)phthalate 10-158 1.4 20.0 36.5 73.071.835.950.0µg/L4-Bromophenyl phenyl ether 53-127 1.6 20.0 43.1 86.287.443.750.0µg/LButyl benzyl phthalate 10-152 1.3 20.0 38.1 76.275.637.850.0µg/L4-Chloro-3-methylphenol 22-147 0.7 20.0 36.7 73.473.636.850.0µg/L2-Chloronaphthalene 60-118 0.2 20.0 32.1 64.265.632.850.0µg/L2-Chlorophenol 23-134 2.1 20.0 36.4 72.871.835.950.0µg/L4-Chlorophenyl phenyl ether 25-158 1.3 20.0 39.7 79.480.640.350.0µg/LChrysene 17-168 1.5 20.0 31.9 63.877.038.550.0µg/LDibenz(a,h)anthracene 10-227 18.7 20.0 38.5 77.075.637.850.0µg/LDibenzofuran 39-114 1.8 20.0 26.8 53.655.827.950.0µg/L1,2-Dichlorobenzene 32-129 4.0 20.0 25.8 51.654.427.250.0µg/L1,3-Dichlorobenzene 20-124 5.2 20.0 24.8 49.651.825.950.0µg/L1,4-Dichlorobenzene 20-124 4.3 20.0 33.7 67.470.835.450.0µg/L3,3'-Dichlorobenzidine 10-262 4.9 20.0 36.4 72.874.437.250.0µg/L2,4-Dichlorophenol 39-135 2.1 20.0 40.4 80.880.240.150.0µg/LDiethyl phthalate 10-114 0.7 20.0 41.0 82.079.439.750.0µg/LDimethyl phthalate 10-112 3.2 20.0 48.3 96.696.048.050.0µg/L2,4-Dimethylphenol 32-119 0.6 20.0 43.3 86.688.044.050.0µg/LDi-n-butyl phthalate 10-118 1.6 20.0 35.8 71.673.036.550.0µg/L4,6-Dinitro-2-methylphenol 10-181 1.9 20.0 37.8 75.672.836.450.0µg/L2,4-Dinitrophenol 10-191 3.7 20.0 43.3 86.683.241.650.0µg/L2,4-Dinitrotoluene 39-139 4.0 20.0 Page 28 of 30Date:09/29/2023 08:35 AM Page 98 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38372QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38350 LCS-V38350 LCSD-V38350Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 43.9 87.884.842.450.0µg/L2,6-Dinitrotoluene 50-158 3.4 20.0 43.3 86.687.443.750.0µg/LDi-n-Octyl Phthalate 10-146 0.9 20.0 40.4 80.881.240.650.0µg/LFluoranthene 26-137 0.4 20.0 38.4 76.877.238.650.0µg/LFluorene 59-121 0.5 20.0 40.5 81.080.040.050.0µg/LHexachlorobenzene 10-152 1.2 20.0 30.6 61.263.031.550.0µg/LHexachlorobutadiene 24-116 2.8 20.0 21.0 42.044.422.250.0µg/LHexachlorocyclopentadiene 32-117 5.5 20.0 25.4 50.852.626.350.0µg/LHexachloroethane 40-113 3.4 20.0 38.8 77.677.238.650.0µg/LIndeno(1,2,3-cd)pyrene 10-171 0.5 20.0 33.7 67.467.633.850.0µg/LIsophorone 21-196 0.2 20.0 31.5 63.067.433.750.0µg/L1-Methylnaphthalene 40-135 6.7 20.0 31.4 62.866.433.250.0µg/L2-Methylnaphthalene 18-121 5.5 20.0 30.3 60.663.231.650.0µg/LNaphthalene 21-133 4.2 20.0 33.2 66.467.833.950.0µg/LNitrobenzene 35-180 2.0 20.0 33.3 66.668.834.450.0µg/L2-Nitrophenol 29-182 3.2 20.0 21.8 43.645.222.650.0µg/L4-Nitrophenol 10-132 3.6 20.0 46.1 92.293.646.850.0µg/LN-Nitrosodiphenylamine 69-152 1.5 20.0 36.3 72.673.236.650.0µg/LN-Nitroso-di-n-propylamine 10-230 0.8 20.0 39.8 79.686.643.350.0µg/LPentachlorophenol 14-176 8.4 20.0 39.8 79.680.240.150.0µg/LPhenanthrene 54-120 0.7 20.0 14.7 29.429.214.650.0µg/LPhenol 10-112 0.6 20.0 40.1 80.281.240.650.0µg/LPyrene 52-115 1.2 20.0 28.9 57.860.430.250.0µg/L1,2,4-Trichlorobenzene 44-142 4.3 20.0 37.7 75.474.237.150.0µg/L2,4,6-Trichlorophenol 37-144 1.6 20.0 142*71.42-Fluorobiphenyl (S)49-118 86.4*43.82-Fluorophenol (S)22-84 Page 29 of 30* QC Fail Date:09/29/2023 08:35 AM Page 99 of 102 Quality Control Data 23-263-0010Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V38372QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V38350 LCS-V38350 LCSD-V38350Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 124*63.6Nitrobenzene-d5 (S)43-123 151*75.44-Terphenyl-d14 (S)49-151 164*80.82,4,6-Tribromophenol (S)31-144 55.828.8Phenol-d5 (S)10-63 Page 30 of 30* QC Fail Date:09/29/2023 08:35 AM Page 100 of 102 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-263-0010 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 1.7C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:09/20/2023 14:39:18 Special precautions or instructions included? Comments: Page 101 of 102 Page 102 of 102 Appendix B Groundwater Sampling Forms Stabilization Criteria LOW-FLOW GROUNDWATER SAMPLING RECORD R PARAMETERS Maintenance Stabilization Criteria LOW-FLOW GROUNDWATER SAMPLING RECORD R PARAMETERS Maintenance Stabilization Criteria LOW-FLOW GROUNDWATER SAMPLING RECORD R PARAMETERS Maintenance Stabilization Criteria LOW-FLOW GROUNDWATER SAMPLING RECORD R PARAMETERS Maintenance 15:30 Stabilization Criteria LOW-FLOW GROUNDWATER SAMPLING RECORD R PARAMETERS Maintenance Stabilization Criteria LOW-FLOW GROUNDWATER SAMPLING RECORD R PARAMETERS Maintenance DOT Robbinsville Maintenance Facility DOT Robbinsville Maintenance Facility DOT Robbinsville Maintenance Facility