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HomeMy WebLinkAboutAS-3030_28254_CA_MRP_20230606_SAR Via Email June 6, 2023 NC Department of Environmental Quality Div. of Waste Management - Underground Storage Tanks 2090 U.S. 70 Highway Swannanoa, NC 28778 Attention: Ms. Katie Bernal, PG Re: Soil and Groundwater Assessment 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 Soil and Groundwater Assessment 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 Soil and Groundwater Assessment Report NC DOT Maintenance Facility Robbinsville, North Carolina NC DEQ Incident Number: 28254 H&H Job No. DOT-476 June 6, 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 prior to this report 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 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc Soil and Groundwater Assessment 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 ................................................................................................ 5  4.0 Geology and Hydrogeology .................................................................................................... 6  4.1 Regional Geology and Hydrogeology ..........................................................................6  4.2 Site Geology and Hydrogeology ...................................................................................7  5.0 Soil Assessment Activities ...................................................................................................... 8  5.1 Soil Sampling Activities ...............................................................................................8  5.2 Soil Analytical Results ..................................................................................................9  6.0 Groundwater Monitoring .................................................................................................... 10  6.1 Monitoring Wells and Water Levels ...........................................................................10  6.2 Sample Collection Procedures and Analyses ..............................................................10  6.3 Groundwater Sampling and Results ............................................................................10  7.0 Summary and Certification ................................................................................................ 13  ii https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc List of Tables Table 1 Summary of Adjacent Property Owner and Water Supply Well Information Table 2 Summary of Soil Analytical Results Table 3 Summary of Monitoring Well Construction Data and Water Level Elevations Table 4 Summary of Groundwater Analytical Results Table 5 Natural Attenuation Parameters – March 2023 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 Soil Boring Locations and Analytical Data Figure 6 Groundwater Sample Locations and Analytical Data List of Appendices Appendix A Boring Logs Appendix B Laboratory Analytical Data Sheets Appendix C Groundwater Sampling Forms 1 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc Soil and Groundwater Assessment Report NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 1.0 Introduction This assessment report documents soil and groundwater sampling performed 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 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 exceed 10 times the 2B Surface Water 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:  Soil assessment near previous UST closure soil sample locations SS-8 and SS-9  Locating and gauging monitoring wells  Sampling monitoring wells MW-1 through MW-5 and DW-1  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 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.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 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 and adjacent to the dispenser line and 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 2L Groundwater 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 Surface Water Standards. No water supply wells were identified within a 1,500 ft radius of the site during LSA activities in 2005. However, a named surface water body (Tulula Creek) is located 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 a Trout Water (Tr). The site and surrounding properties utilize municipal water. 3 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc 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 naphthalene were detected above NC 2L standards in MW-1 but did not exceed 10 times the 2B Surface Water standards. No other VOCs or 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 decreased significantly in monitoring wells MW-1 through MW-4 and DW-1 since the 2005 sampling event. Results of the most recent 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 will 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. Katei Bernal, NC DEQ Incident Manager for the NC DOT Robbinsville Maintenance facility, additional soil sampling activities would be required to 4 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc 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 that concentrations 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 soil is the Residential MSCCs. Based on the above historical soil results, H&H conducted soil sampling activities to evaluate if soil impacts near SS-8 and SS-9 remain above Residential screening levels. The March 2023 soil assessment and groundwater monitoring activities are described below. 5 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.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 a receptor survey update 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 look 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. 6 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.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. 7 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.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 (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 March 2023. The depth to groundwater at the site is approximately 3.5 to 5 ft below grade. 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 and toward Tulula Creek (Figure 4). 8 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc 5.0 Soil Assessment Activities 5.1 Soil Sampling Activities Prior to conducting soil assessment activities, H&H contacted North Carolina 811, the public utility locator, to mark subsurface utilities located at the site. H&H also contracted with a private utility locator to screen proposed soil boring locations for subgrade utilities not marked by the public locator. The private utility locator utilized electromagnetic and ground penetrating radar (GPR) technology to identify subgrade utilities. On March 21, 2023, H&H advanced two soil borings adjacent to two previous soil boring locations SS-8 and SS-9, which are located near the former product line (Figure 5). H&H contracted with Penhall Company to core through the asphalt at each boring location. Soil borings were advanced to approximate depths of 4 ft bgs using a stainless-steel hand auger. Previous soil samples were collected at 3.5 ft bgs in each boring location. During boring advancement, soil samples were collected at one ft intervals. H&H recorded soil lithology and screened the soil samples for the presence of odors, staining, and/or organic vapors using a photoionization detector (PID). Additionally, H&H observed the soil for visual and olfactory indications of impacts. Based on field screening results, there were indications of potential impacts in each soil boring. Soil samples were collected at the approximate depth interval (3 ft to 4 ft bgs), which bracket the previous sample depths. Soil boring logs are included in Appendix A. The soil samples were submitted to Waypoint Analytical, a NC certified laboratory, under chain- of-custody protocol. Based on previous soil impacts above Residential MSCCs, the soil samples collected near SS-8 and SS-9 were analyzed for parameters previously present above Residential MSCCs which included EPH and VPH by the MADEP Methods. Due to the prior presence of naphthalene above the Residential MSCC, the soil sample collected near SS-9 was also analyzed for polynuclear aromatic hydrocarbons (PAHs), including naphthalene, by EPA Method 8270. 9 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc 5.2 Soil Analytical Results Concentrations of target petroleum constituents were detected in both of the soil samples collected at the site. Concentrations of total C9-C22 Aromatics (689 mg/kg) and naphthalene (9.26 mg/kg) were detected above the Residential MSCCs in soil sample SS-9. Concentrations of other target MADEP EPH and VPH constituents and/or PAHs were also detected in SS-8 and SS-9 above the Soil-to-Water MSCCs. Analytical results are summarized in Table 2. Historical soil analytical data are also included in Table 2. Soil boring locations and analytical results are shown on Figure 5. The analytical laboratory report is included in Appendix B. Upon completion of sampling activities, soil borings were backfilled with bentonite and patched with asphalt to match the existing ground surface. 10 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc 6.0 Groundwater Monitoring 6.1 Monitoring Wells and Water Levels Six monitoring wells (MW-1 through MW-5 and DW-1) were sampled on March 20 and 21, 2023. The monitoring wells appeared to be in good condition. Monitoring well construction information is provided in Table 3. 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 3.45 ft (MW-5) to 4.85 ft (MW-3) below the monitoring well top of casings. The estimated potentiometric surface from March 2023 is depicted on Figure 4. As shown on Figure 4, the potentiometric surface generally slopes to the west towards Tulula Creek. 6.2 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 for laboratory analysis of volatile organic compounds (VOCs) by Standard Method for the Examination of Water and Wastewater 6200B and semi-VOCs by EPA Method 625 (base/neutral and acid extractables). Because MADEP EPH and VPH concentrations in groundwater samples collected from MW-1, MW-2, and MW-4 exceeded their respective 2L Standards during LSA activities in 2005, NC DEQ requested that samples from these wells also be analyzed for EPH and VPH during the sampling event to evaluate current EPH and VPH concentrations. Laboratory analytical data sheets are provided in Appendix B, and analytical results are summarized in Table 4. 6.3 Groundwater Sampling and Results After monitoring wells were gauged for depth to water, the wells were sampled using low-flow 11 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc sampling techniques with a peristaltic pump. During well purging, measurements of pH, conductivity, temperature, dissolved oxygen, and turbidity were collected. The wells were purged until field parameters stabilized, and turbidity levels were below 10 Nephelometric Turbidity Units (NTUs). Upon stabilization, a groundwater sample was collected for laboratory analysis. Field parameter data are provided in Table 5. Groundwater sampling forms are included in Appendix C. Based on laboratory analytical results, concentrations of benzene (8.36 ug/L) and naphthalene (30.3 ug/L) were detected in MW-1 above the 2L Standards of 1.0 ug/L and 6.0 ug/L, respectively. Concentrations of C5-C8 Aliphatics (758 ug/L) and Total C9-C22 Aromatics (957 ug/L) were also detected in MW-1 above the 2L Standard of 400 ug/L and 200 ug/L, respectively. Low-level concentrations of other petroleum-related VOCs, SVOCs and/or MADEP EPH and VPH were also detected in MW-1, MW-2, MW-3, and MW-4 below the 2L Standards. The groundwater concentrations noted above were also compared to the NC Water Quality Standards for Surface Water (2B Standards). The nearest groundwater discharge is to a Water Supply Class III (WS-III) and a Trout Water (Tr) surface water body (Tulula Creek). 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, 1-Methylnaphthalene (16.1 ug/L) was detected at a concentration 10 times the surface water criteria in MW-1. Please note that 1-methylnaphthalene was not previously reported by the laboratory for the 2005 or 2022 groundwater sampling events. 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 8.36 µg/L in 2023 in MW-1. VOCs and/or SVOCs previously detected in 12 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc 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 monitoring well MW-5 over time. Concentrations of MADEP EPH and VPH have generally decreased in MW-1, MW-2, and MW-4 since 2005. Historical groundwater monitoring data are provided in Table 4. Key contaminant concentrations in groundwater are depicted on Figure 6. 13 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc 7.0 Summary and Certification Soil assessment and groundwater monitoring activities were conducted at the NC DOT Maintenance Facility in Robbinsville, North Carolina in March 2023. The findings are summarized below.  The updated water supply well survey identified two water supply wells located approximately 900 ft cross-gradient of the Site which were installed in the time since the last receptor survey was completed during the LSA. Because these water wells are within 1,000 ft radius, DEQ may choose to modify the risk level to high, although these wells are not likely to be impacted based on their distance and hydrologic position.  Analytical results of soil samples collected by H&H indicate concentrations of target petroleum constituents above the Residential MSCCs in one of the two soil samples recently collected.  Analytical results of groundwater samples collected from monitoring wells at the site indicate concentrations of benzene, naphthalene and MADEP EPH and VPH in MW-1 above the NC 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 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 stable since the 2022 sampling event. A concentration of 1- methylnaphthalene was detected in MW-1 above 10 times the applicable surface water criteria. With the exception of the concentration of 1-methylnaphthalene detected in MW-1 (above 10 times the applicable surface water criteria), detected groundwater concentrations are similar to groundwater concentrations detected at the site in September 2022. The concentration of 1- methylnaphthalene was detected in MW-1, which is located upgradient and approximately 230 ft away from the stream. No concentrations of 1-methylnapthalene were detected in monitoring 14 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Report/AS_3030_28254_MRP_20230606_Soil & Groundwater.doc wells MW-3 and MW-4 located downgradient of MW-1 and approximately 60 to 70 ft from the stream. Although the site may qualify as high risk, H&H requests that DEQ consider incident closure because the water supply wells are approximately 900 ft away and the stream is approximately 200 to 250 ft away from groundwater impacts above standards. 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 are 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 Summary of Adjacent Property Owner and Water Supply Well Information NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Parcel ID No. Map No. (Adjacent Parcel) Property Address Owner Owner Mailing Address Direction From Site Water Supply Well ID Confirmed Well Usage (September 2022) Additional Well Information Approximate Distance of Well From Source Area of Release (ft) 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 Well Details https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Tables/GW Tables 4/27/2023 Table 1 (Page 1 of 1) Hart & Hickman, PC Table 2 (Page 1 of 1) Summary of Soil Analytical Results NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Sample ID: SS-1 SS-2 SS-3 SS-4 SS-5 SS-6 SS-7 Depth (feet): 4 4 4 4 4 3 2.5 3.5 3-4 3.5 3-4 Sample Date: 8/31/2004 8/31/2004 8/31/2004 8/31/2004 8/31/2004 8/31/2004 8/31/2004 8/31/2004 3/21/2023 8/31/2004 3/21/2023 Location: Sidewall/Line Basin Sidewall Basin Sidewall Basin Sidewall Basin Sidewall Dispenser Dispenser VPH/EPH (MADEP) VPH C5-C8 Aliphatics 12.2 <10 <10 11.5 <10 11.7 20.1 226 56.4 486 287 68 625 9,340 VPH C9-C12 Aliphatics 51.8 11.4 <10 <10 <10 <10 117 470 191 532 319 NS NS NS EPH C9-C18 Aliphatics 136 119 <100 <10 252 <10 <100 1,800 142 688 647 NS NS NS Total C9-C18 Aliphatics 187.8 130.4 ND ND 252 ND 117 2,270 333 1,220 966 540 1,560 23,300 EPH C19-C36 Aliphatics <100 113 <100 <10 <100 <10 <100 262 28.3 J 173 103 J >100% 31,200 467,000 VPH C9-C10 Aromatics 29.0 <10 <10 <10 <10 <10 68.6 249 88.3 272 176 NS NS NS EPH C11-C22 Aromatics 429 220 142 13.2 159 12.7 156 872 122 247 513 NS NS NS Total C9-C22 Aromatics 458 220 142 13.2 159 12.7 224.6 1,121 210.3 519 689 31 469 7,000 VOCs (8260) Benzene ND ND ND ND ND ND ND ND NA 1.12 NA 0.0072 12 59.4 n-Butylbenzene ND ND ND ND ND ND ND 2.25 NA 4.46 NA 2.4 782 11,600 Ethylbenzene ND ND ND ND ND ND ND 5.77 NA 26.1 NA 8 60.3 297 n-Propylbenzene ND ND ND ND ND ND ND 2.52 NA 12.9 NA 1.4 1,560 23,300 p-Isopropyltoluene ND ND ND ND ND ND ND ND NA 2.77 NA 0.12 1,560 23,300 Naphthalene ND ND ND ND ND ND ND ND NA 18.3 NA 0.2 5.5 27 Bromomethane ND ND ND 0.227 0.318 0.208 ND ND NA ND NA 0.047 21 327 Chloroethane ND ND ND ND ND ND 0.129 ND NA 7.86 NA NS NS NS Chloromethane ND ND 0.963 1.14 1.47 0.959 0.561 3.33 NA ND NA 0.014 51 251 SVOCs (8270) Fluorene ND ND ND ND ND ND ND 1.14 NA ND 0.805 J 55 625 9,340 1-Methylnaphthalene N/A N/A N/A N/A N/A N/A N/A N/A NA N/A 7.56 0.054 22.8 112 2-Methylnaphthalene ND ND ND ND ND ND ND 13.7 NA 12 14.1 1.5 62.5 934 Naphthalene ND ND ND ND ND ND ND 3.95 NA 6.36 9.26 0.2 5.5 27 n-Nitrosodiphenylamine ND ND ND ND ND ND ND 1.19 NA ND NA NS NS NS Phenanthrene ND ND ND ND ND ND ND 1.97 NA 1.59 1.62 J 64 469 7,000 Notes: 1) Analytical results compared to North Carolina UST Maximum Soil Contaminant Concentration levels (MSCCs), dated September 2022. All values shown are reported in mg/kg. Soil samples from 2004 were collected by NC DOT. EPA Method number follows parameter in parenthesis. Bold indicates concentration exceeds Soil to Groundwater MSCCs. Underline indicates concentration exceeds Residential MSCCs. VOC = Volatile Organic Compound; SVOC = Semi-Volatile Organic Compound; NA = Not Analyzed; NS = Not Specified; ND = Not Detected VPH = Volatile Petroleum Hydrocarbons; EPH = Extractable Petroleum Hydrocarbons MADEP = Massachusetts Department of Environmental Protection N/A = 2004 lab report not available to confirm if compound was analyzed. Product Line Commercial / Industrial MSCC(1) Soil to GW MSCC(1) Residential MSCC(1) SS-8 SS-9 Product Line https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Tables/Soil Tables Table 2 (1 of 1) Hart & Hickman, PC Table 3 (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 (mm/dd/yy) 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 1/20/2005 4.62 94.01 9/6/2022 4.71 93.92 3/20/2023 4.07 94.56 1/20/2005 5.07 93.34 9/6/2022 5.29 93.12 3/20/2023 4.85 93.56 1/20/2005 4.57 93.07 9/6/2022 4.70 92.94 3/20/2023 4.39 93.25 1/20/2005 4.37 95.43 9/6/2022 4.53 95.27 3/20/2023 3.45 96.35 1/20/2005 5.25 94.02 9/6/2022 5.31 93.96 3/20/2023 4.65 94.62 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. 2 2 2 2 2 2 50 2-12 2-12 2-12 2-12 2-12 40-50 12 12 12 12 12MW-5 DW-1* MW-1 98.97 MW-2 MW-3 MW-4 98.63 98.41 97.64 99.80 99.27 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Tables/GW Tables4/27/2023 Table 3 (Page 1 of 1) Hart & Hickman, PC Table 4 (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 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 Bi s ( 2 - et 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 Fl u 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 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 100 91 300 <5.0 79 22 370 <1.8 <9.7 <9.7 <2.1 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 21.2 32.7 0.488 J <0.180 <0.190 <0.180 2.25 J <7.12 <8.80 <4.53 <5.08 <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 30.3 42.5 <2.20 <1.80 <1.90 <1.80 <2.1 1.39 J <3.49 <1.84 1.30 J 3.68 16.1 9.94 12.7 2.70 758 512 70.5 J 582.5 J <124 229 728 957 1/20/2005 NA 25 4.4 1.3 5.0 4.4 1.9 32 NA 38 11 2.4 <0.5 0.58 <0.50 1.88 <1.8 <9.7 <9.7 <2.1 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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <8.80 <4.53 <5.08 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 NA NA NA NA 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 <0.470 1.97 <0.220 <0.180 <0.190 <0.180 <0.21 <0.303 <3.49 <1.84 <0.861 <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 1/20/2005 NA 0.95 2.1 0.59 <0.5 <0.5 1.3 37 NA <0.5 0.58 <0.5 <0.5 1.5 0.96 3.0 <1.8 <9.7 <9.7 <2.1 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <8.80 <4.53 <5.08 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 0.562 J <3.49 <1.84 <0.861 0.921 J <1.15 <0.669 <0.731 <0.430 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 8.9 5.4 3.0 <0.5 9.5 6.2 28.8 <3.7 120 15 J <4.3 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <8.80 <4.53 <5.08 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 0.602 J <3.49 <1.84 <0.861 <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 1/20/2005 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 NA <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <1.5 <1.8 <9.7 <9.7 <2.1 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <8.80 <4.53 <5.08 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <0.303 <3.49 <1.84 <0.861 <0.811 <1.15 <0.669 <0.731 <0.430 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 <0.5 <0.5 <0.5 1.9 <0.5 <0.5 <1.5 <1.8 <9.7 <9.7 <2.1 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <7.12 <8.80 <4.53 <5.08 <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 <0.470 <0.190 <0.220 <0.180 <0.190 <0.180 <0.21 <0.303 <3.49 <1.84 <0.861 <0.811 <1.15 <0.669 <0.731 <0.430 NA NA NA NA NA NA NA NA 6,000 1 70 70 600 70 70 20 100 6 70 600 3 400 400 500 80 3 1,000 28 300 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 6,000 26,100 260,000 3,000 28,500 24,100 50,000 1,950 135 NS 1,550 845 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 28,000 120 800 3.6 25 3,900 1,300 4,500 290 3.2 1 NS 300 8 850 120 3 1,250 1,800 1,800 1,800 2,100 NS NS 8,300 Notes: 1) Analytical results compared to North Carolina 2L (NC2L) Groundwater Standards or Interim Maximum Allowable Concentrations, April 2022. 2) Analytical results compared to North Carolina Gross Contamination Levels (GCL) for Groundwater, September 2022. 3) NC Water Quality Standards for Surface Water (2B Standards). If no standard exists, the lower of EPA Recommended Water Quality Criteria for Aquatic Life & Human Health - Class WS III/Tr or Class C (All waters) 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 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 EPA Method number follows parameter in parenthesis. J = Estimated value between the laboratory reporting limit and the method detection limit. VPH/EPH (MADEP) µg/L MW-2 MW-3 MW-4 SVOCs (625) µg/L VOCs (6200B) Sa m p l e I D Sa m p l e D a t e µg/L MW-1 MW-5 NC2L1 10 X Surface Water Criteria3 GCL2 DW-1 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/NC DOT -DOT/DOT-476 Robbinsville/Reports/2023 Soil & GW Report/Tables/GW Tables4/27/2023 Table 4 (Page 1 of 1) Hart & Hickman, PC Table 5 Natural Attenuation Parameters - March 2023 NC DOT Maintenance Facility Robbinsville, North Carolina H&H Job No. DOT-476 Well pH (SU) Conductivity (µS/cm) Temperature (ºC)ORP (mV)Dissolved Oxygen (mg/L) Turbidity (NTU) MW-1 6.97 513.3 16.4 -101.0 1.21 0.26 MW-2 5.90 249.1 15.9 65.6 1.80 0.40 MW-3 6.50 383.9 14.1 -78.9 2.14 2.80 MW-4 6.14 673.0 14.5 -11.8 2.46 0.37 MW-5 5.91 602.1 12.6 182.8 5.40 0.68 DW-1 7.65 212.1 14.4 -135.4 0.57 1.21 Notes: SU = Standard Units µS/cm = microsiemens per centimeter 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 Soil & GW Report/Tables/GW Tables 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, andNational Transportation Dataset; USGS Global Ecosystems; U.S. CensusBureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S.Department of State Humanitarian Information Unit; and NOAA NationalCenters for Environmental Information, U.S. Coastal Relief Model. Datarefreshed June, 2022. SITE LOCATION MAP NC DOT MAINTENANCE FACILITY40 STATE SHED ROADROBBINSVILLE, NORTH CAROLINA DATE: 12-15-2022 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 Path: S:\AAA-Master Projects\NC DOT -DOT\DOT-476 Robbinsville\Figures\Figure-1.mxd N U.S.G.S. QUADRANGLE MAP ROBBINSVILLE, NORTH CAROLINA 2022 QUADRANGLE7.5 MINUTE SERIES (TOPOGRAPHIC) MW-4 MW-3 MW-1 DW-1 MW-5 MW-2 W-2 REVISION NO. 1 JOB NO. DOT-476 DATE: 4-24-23 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 USED OIL UNDERGROUND STORAGE TANK FORMER AST FUEL DISPENSERS MONITORING WELL DEEP MONITORING WELL UST OBSERVATION WELL NOTES: 1.PARCEL DATA OBTAINED FROM GRAHAM COUNTY GIS, 2023. 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 S o i l & G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ S o i l _ G W _ 2 0 2 3 0 4 2 4 . d w g , F I G 2 , 4 / 2 5 / 2 0 2 3 4 : 4 2 : 4 9 P M , s p e r r y REVISION NO. 0 JOB NO. DOT-476 DATE: 4-24-23 FIGURE NO. 3 NC DOT MAINTENANCE FACILITY 40 STATE SHED ROAD ROBBINSVILLE, NORTH CAROLINA RECEPTOR SURVEY MAP LEGEND SITE PROPERTY BOUNDARY PARCEL BOUNDARY 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 \ F i g u r e s \ R e c e p t o r _ S u r v e y F I G - 0 3 . d w g , F I G 3 , 4 / 2 5 / 2 0 2 3 4 : 4 8 : 2 5 P M , s p e r r y MW-4 MW-3 MW-1 DW-1 MW-5 MW-2 W-2 REVISION NO. 1 JOB NO. DOT-476 DATE: 4-26-23 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. 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 USED OIL UNDERGROUND STORAGE TANK FORMER AST FUEL DISPENSER MONITORING WELL DEEP MONITORING WELL UST OBSERVATION WELL GROUNDWATER ELEVATION (FT) (3/20/23) ESTIMATED SHALLOW GROUNDWATER CONTOUR LINE ESTIMATED GROUNDWATER FLOW DIRECTION (93.25) 95 (96.35) (93.56) (94.56) (94.37) (93.25) 94 95 94 95 96 96 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 S o i l & G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ S o i l _ G W _ 2 0 2 3 0 4 2 4 . d w g , F I G 4 , 4 / 2 6 / 2 0 2 3 1 0 : 1 4 : 3 8 A M , s p e r r y MW-4 MW-3 MW-1 DW-1 MW-5 MW-2 W-2 SS-7SS-6 SS-9 SS-8 SS-1 SS-2 SS-5 SS-4 SS-3 SS-8 8/31/2004 3/21/2023 DEPTH 3.5 3-4 TOTAL C9-C18 ALIPHATICS 2,270 333 TOTAL C9-C22 AROMATICS 1,121 210.3 REVISION NO. 1 JOB NO. DOT-476 DATE: 4-24-23 FIGURE NO. 5 NC DOT MAINTENANCE FACILITY 40 STATE SHED ROAD ROBBINSVILLE, NORTH CAROLINA SOIL BORING LOCATIONS AND ANALYTICAL DATA NOTES: 1.PARCEL DATA OBTAINED FROM GRAHAM COUNTY GIS, 2023. 2.UST SAMPLES COLLECTED BY DOT (08/31/04). 3.ONLY COMPOUNDS THAT WERE DETECTED ABOVE RESIDENTIAL MSCCs ARE SHOWN. REFER TO TABLE 2 FOR ALL DETECTED COMPOUNDS. 4.BOLD EXCEEDS SOIL-TO-WATER MSCCs. 5.UNDERLINE EXCEEDS RESIDENTIAL MSCCs. 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 USED OIL UNDERGROUND STORAGE TANK FORMER AST FUEL DISPENSERS MONITORING WELL DEEP MONITORING WELL UST OBSERVATION WELL APPROXIMATE SOIL SAMPLE LOCATION SS-8 8/31/2004 3/21/2023 DEPTH 3.5 3-4 TOTAL C9-C18 ALIPHATICS 2,270 333 TOTAL C9-C22 AROMATICS 1,121 210.3 CONSTITUENT SAMPLE ID SAMPLE DATE SS-9 8/31/2004 3/21/2023 DEPTH 3.5 3-4 TOTAL C9-C22 AROMATICS 519 689 NAPHTHALENE (VIA 8260)18.3 NA NAPHTHALENE (VIA 8270)6.36 9.26 CONCENTRATION (mg/kg) 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 S o i l & G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ S o i l _ G W _ 2 0 2 3 0 4 2 4 . d w g , F I G 5 , 5 / 2 5 / 2 0 2 3 3 : 4 8 : 1 7 P M , s h a y n e s MW-4 MW-3 MW-1 DW-1 MW-5 MW-2 W-2 MW-3 1/20/2005 9/7/2022 3/21/2023 MTBE 37 <0.140 <0.140 REVISION NO. 1 JOB NO. DOT-476 DATE: 4-26-23 FIGURE NO. 6 NC DOT MAINTENANCE FACILITY 40 STATE SHED ROAD ROBBINSVILLE, NORTH CAROLINA GROUNDWATER SAMPLE LOCATIONS AND ANALYTICAL DATA NOTES: 1.BOLD CONCENTRATIONS EXCEED THE NC 2L STANDARDS. 2.UNDERLINE EXCEEDS 10X SURFACE WATER CRITERIA. 3.MTBE = METHYL TERT-BUTYL ETHER NA = NOT ANALYZED ND = NO PETROLEUM COMPOUNDS DETECTED BDL = BELOW LABORATORY DETECTION LIMITS 4.J FLAG DENOTES ESTIMATED CONCENTRATION BETWEEN LABORATORY REPORTING LIMIT AND METHOD DETECTION LIMIT. 5.SEE TABLE 4 FOR MADEP EPH AND 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 USED OIL UNDERGROUND STORAGE TANK FORMER AST FUEL DISPENSER MONITORING WELL DEEP MONITORING WELL UST OBSERVATION WELL MW-1 1/20/2005 9/7/2022 3/21/2023 BENZENE 320 11.7 8.36 MTBE 690 <0.140 <1.40 NAPHTHALENE 100 21.2 30.3 n-PROYLBENZENE 91 32.7 42.5 TOLUENE 300 0.488 J <2.20 1-METHYLNAPHTHALENE NA NA 16.1 PHENANTHRENE 3.7 J <6.34 2.70 MW-2 1/20/2005 9/7/2022 3/21/2023 BENZENE 25 <0.180 0.848 MTBE 32 <0.140 <1.40 NAPHTHALENE 38 <0.470 <0.470 MW-3 1/20/2005 9/7/2022 3/21/2023 MTBE 37 <0.140 <0.140 MW-4 1/20/2005 9/7/2022 3/20/2023 BENZENE 5.6 <0.180 <0.180 MTBE 34 <0.140 <0.140 NAPHTHALENE 17 J <0.470 <0.470 BIS(2-ETHYLHEXYL) PHTHALATE 120 <8.80 <3.49 BUTYLBENZYLPHTHALATE 15 J <4.53 <1.84 PHENANTHRENE 4.9 J <6.34 <0.430 MW-5 1/20/2005 9/6/2022 3/20/2023 BDL CONSTITUENT SAMPLE ID CONCENTRATION (µg/L) SAMPLE DATE DW-1 1/20/2005 9/7/2022 3/21/2023 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 S o i l & G W R e p o r t \ F i g u r e s \ D O T - 4 7 6 _ S o i l _ G W _ 2 0 2 3 0 4 2 4 . d w g , F I G 6 , 5 / 2 6 / 2 0 2 3 1 0 : 0 8 : 0 8 A M , s h a y n e s Appendix A Boring Logs NOTES: Borehole cored by Penhall Company using a core drill to remove asphalt. generated using GroundLogs.online Client: Project: Address: NC DOT DOT-476 40 State Shed Road, Robbinsville,NC BORING LOG Boring No. Page: SS-8 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 03/21/23 03/21/23 Hart and Hickman, PC Hand Auger Hand Auger DJH DJH Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 4.0 3.25 DE P T H ( f t ) LI T H O L O G Y WA T E R L EV E L BO R I N G CO M P L E T I O N COLLECT Sa m p l e T y p e Ti m e Bl o w C ou n t s Re c o v e ry ( f t ) SOIL/ROCK VISUAL DESCRIPTION MEASURE PI D ( p pm ) La b S am p l e DE P T H ( f t ) 0 1 2 3 4 5 (0') Asphalt (0.5') Fill: Gravel (1') Sandy CLAY (CH); high plasticity, soft, wet, gray, strong odor (3') Silty SAND (SM); loose, wet, brownish gray, strong odor (4') Boring terminated 394.3 397.5 437.8 SS-8(3-4) 0 1 2 3 4 5 Grab GR 4.00 NOTES: Borehole cored by Penhall Company using a core drill to remove asphalt. generated using GroundLogs.online Client: Project: Address: NC DOT DOT-476 40 State Shed Road, Robbinsville,NC BORING LOG Boring No. Page: SS-9 1 of 1 Drilling Start Date: Drilling End Date: Drilling Company: Drilling Method: Drilling Equipment: Driller: Logged By: 03/21/23 03/21/23 Hart and Hickman, PC Hand Auger Hand Auger DJH DJH Boring Depth (ft): Boring Diameter (in): Sampling Method(s): DTW During Drilling (ft): DTW After Drilling (ft): Ground Surface Elev. (ft): Location (X,Y): 4.0 Grab DE P T H ( f t ) LI T H O L O G Y WA T E R L E V E L BO R I N G CO M P L E T I O N COLLECT Sa m p l e T y p e Ti m e Bl o w C o u n t s Re c o v e r y ( f t ) SOIL/ROCK VISUAL DESCRIPTION MEASURE PI D ( p p m ) La b S a m p l e DE P T H ( f t ) 0 1 2 3 4 5 GR 4.00 (0') Asphalt (1') Sandy CLAY (CH); high plasticity, soft, moist, gray, strong odor (2') Sandy CLAY (CH); little fine-coarse sand, high plasticity, soft, wet, gray/brown, strong odor (3') Sandy CLAY (CH); few silt, high plasticity, soft, moist, gray, strong odor (4') Boring terminated 72.5 1,439 1,258 SS-9(3-4) 0 1 2 3 4 5 3.25 Appendix B 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.   4/3/2023 Hart & Hickman (Charlotte) David Graham 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 23-081-0101 Client Project Description: DOT-476 Dear David Graham: Waypoint Analytical, LLC (Charlotte) received sample(s) on 3/22/2023 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 18 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Page 1 of 1 00016/23-081-0101 Page 2 of 18 Report Number: Sample Summary Table Client Project Description: 23-081-0101 DOT-476 Lab No Client Sample ID Matrix Date Collected Date Received 03/21/2023 13:05Solids 91868 SS-8(3-4)03/22/2023 12:15 03/21/2023 12:20Solids 91869 SS-9(3-4)03/22/2023 12:15 Page 3 of 18 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-081-0101 Report Limit Project:DOT-476 V 91868SS-8(3-4) 142 03/31/2023 23:37MADEP-EPH Aliphatic C9-C18 mg/Kg - dry 10.8 J28.3 03/31/2023 23:37MADEP-EPH Aliphatic C19-C36 mg/Kg - dry 14.3 122 03/31/2023 23:37MADEP-EPH Aromatic C11-C22 mg/Kg - dry 16.6 56.4 03/28/2023 16:34MADEP-VPH Aliphatic C5-C8 mg/Kg - dry 1.43 191 03/28/2023 16:34MADEP-VPH Aliphatic C9-C12 mg/Kg - dry 5.35 88.3 03/28/2023 16:34MADEP-VPH Aromatic C9-C10 mg/Kg - dry 0.731 14.7 03/28/2023 15:31SW-DRYWT Moisture % V 91869SS-9(3-4) J0.805 03/29/2023 02:508270EFluorenemg/Kg - dry 0.629 7.56 03/29/2023 02:508270E1-Methylnaphthalene mg/Kg - dry 0.521 14.1 03/29/2023 02:508270E2-Methylnaphthalene mg/Kg - dry 0.492 9.26 03/29/2023 02:508270ENaphthalenemg/Kg - dry 0.708 J1.62 03/29/2023 02:508270EPhenanthrenemg/Kg - dry 1.02 647 04/01/2023 12:14MADEP-EPH Aliphatic C9-C18 mg/Kg - dry 45.0 J10304/01/2023 12:14MADEP-EPH Aliphatic C19-C36 mg/Kg - dry 59.8 513 04/01/2023 12:14MADEP-EPH Aromatic C11-C22 mg/Kg - dry 69.5 287 03/28/2023 17:21MADEP-VPH Aliphatic C5-C8 mg/Kg - dry 1.50 319 03/28/2023 17:21MADEP-VPH Aliphatic C9-C12 mg/Kg - dry 5.61 176 03/28/2023 17:21MADEP-VPH Aromatic C9-C10 mg/Kg - dry 0.767 18.7 03/27/2023 15:51SW-DRYWT Moisture % Page 4 of 18   Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: DOT-476 Lab Report Number: 23-081-0101 Date: 4/3/2023 Massachusetts EPH Method MADEP-EPH Sample 91869 (SS-9(3-4)) QC Batch No: V31501 Sample requires dilution due to high levels of target and/or non-target analytes. Analyte: 2-Bromonaphthalene QC Batch No: V31501/V31319 Fractionation surrogate 2-Bromonaphthalene running high in entire batch due to concentrated standard. The other fractionation surrogate 2-Fluorobiphenyl is performing as expected. This still proves that the fractionation process is working. Semivolatile Organic Compounds - GC/MS Method 8270E Sample 91869 (SS-9(3-4)) QC Batch No: V31378/V31269 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Page 5 of 18 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0101 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/03/2023 Sample ID : Lab No : Sampled:SS-8(3-4) 91868 Matrix: 3/21/2023 13:05 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 14.7 %Moisture 1 03/28/23 15:31 SW-DRYWTPEB Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQL Page 6 of 18 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0101 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/03/2023 Sample ID : Lab No : Sampled:SS-8(3-4) 91868 Matrix: 3/21/2023 13:05 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V31319 03/28/23 11:00 142 mg/Kg - dry 10.8 58.7Aliphatic C9-C18 1 03/31/23 23:37 V31501AMP 28.3 J mg/Kg - dry 14.3 58.7Aliphatic C19-C36 1 03/31/23 23:37 V31501AMP 122 mg/Kg - dry 16.6 58.7Aromatic C11-C22 1 03/31/23 23:37 V31501AMP MADEP-EPHSurrogate: 2-Bromonaphthalene I *Limits: 40-140%03/31/23 23:371 AMP MADEP-EPHSurrogate: Chlorooctadecane 80.7 Limits: 40-140%03/31/23 23:371 AMP MADEP-EPHSurrogate: OTP Surrogate 95.3 Limits: 40-140%03/31/23 23:371 AMP Surrogate: 2-Fluorobiphenyl 105 Limits: 40-140%03/31/23 23:371 AMP V31501 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V31296 03/28/23 08:00 56.4 mg/Kg - dry 1.43 9.38Aliphatic C5-C8 100 03/28/23 16:34 V31297TBL 191 mg/Kg - dry 5.35 9.38Aliphatic C9-C12 100 03/28/23 16:34 V31297TBL 88.3 mg/Kg - dry 0.731 9.38Aromatic C9-C10 100 03/28/23 16:34 V31297TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)112 Limits: 70-130%03/28/23 16:34100 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)125 Limits: 70-130%03/28/23 16:34100 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQL Page 7 of 18 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0101 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/03/2023 Sample ID : Lab No : Sampled:SS-9(3-4) 91869 Matrix: 3/21/2023 12:20 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 18.7 %Moisture 1 03/27/23 15:51 SW-DRYWTPEB Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQL Page 8 of 18 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0101 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/03/2023 Sample ID : Lab No : Sampled:SS-9(3-4) 91869 Matrix: 3/21/2023 12:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V31269 03/28/23 09:15 <0.570 mg/Kg - dry 0.570 3.25Acenaphthene 4 03/29/23 02:50 V31378ANG <0.516 mg/Kg - dry 0.516 3.25Acenaphthylene 4 03/29/23 02:50 V31378ANG <0.703 mg/Kg - dry 0.703 3.25Anthracene 4 03/29/23 02:50 V31378ANG <0.683 mg/Kg - dry 0.683 3.25Benzo(a)anthracene 4 03/29/23 02:50 V31378ANG <0.723 mg/Kg - dry 0.723 3.25Benzo(a)pyrene 4 03/29/23 02:50 V31378ANG <0.718 mg/Kg - dry 0.718 3.25Benzo(b)fluoranthene 4 03/29/23 02:50 V31378ANG <0.669 mg/Kg - dry 0.669 3.25Benzo(g,h,i)perylene 4 03/29/23 02:50 V31378ANG <0.674 mg/Kg - dry 0.674 3.25Benzo(k)fluoranthene 4 03/29/23 02:50 V31378ANG <0.698 mg/Kg - dry 0.698 3.25Chrysene 4 03/29/23 02:50 V31378ANG <1.13 mg/Kg - dry 1.13 3.25Dibenz(a,h)anthracene 4 03/29/23 02:50 V31378ANG <0.605 mg/Kg - dry 0.605 3.25Fluoranthene 4 03/29/23 02:50 V31378ANG 0.805 J mg/Kg - dry 0.629 3.25Fluorene 4 03/29/23 02:50 V31378ANG <0.880 mg/Kg - dry 0.880 3.25Indeno(1,2,3-cd)pyrene 4 03/29/23 02:50 V31378ANG 7.56 mg/Kg - dry 0.521 3.251-Methylnaphthalene 4 03/29/23 02:50 V31378ANG 14.1 mg/Kg - dry 0.492 3.252-Methylnaphthalene 4 03/29/23 02:50 V31378ANG 9.26 mg/Kg - dry 0.708 3.25Naphthalene 4 03/29/23 02:50 V31378ANG 1.62 J mg/Kg - dry 1.02 3.25Phenanthrene 4 03/29/23 02:50 V31378ANG <0.659 mg/Kg - dry 0.659 3.25Pyrene 4 03/29/23 02:50 V31378ANG Surrogate: 2-Fluorobiphenyl 102 Limits: 44-115%03/29/23 02:504 ANG V31378 Surrogate: Nitrobenzene-d5 109 Limits: 37-122%03/29/23 02:504 ANG V31378 Surrogate: 4-Terphenyl-d14 116 Limits: 54-127%03/29/23 02:504 ANG V31378 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQL Page 9 of 18 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0101 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/03/2023 Sample ID : Lab No : Sampled:SS-9(3-4) 91869 Matrix: 3/21/2023 12:20 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V31319 03/28/23 11:00 647 mg/Kg - dry 45.0 245Aliphatic C9-C18 4 04/01/23 12:14 V31501AMP 103 J mg/Kg - dry 59.8 245Aliphatic C19-C36 4 04/01/23 12:14 V31501AMP 513 mg/Kg - dry 69.5 245Aromatic C11-C22 4 04/01/23 12:14 V31501AMP MADEP-EPHSurrogate: 2-Bromonaphthalene I *Limits: 40-140%04/01/23 12:144 AMP MADEP-EPHSurrogate: Chlorooctadecane 71.5 Limits: 40-140%04/01/23 12:144 AMP MADEP-EPHSurrogate: OTP Surrogate 81.3 Limits: 40-140%04/01/23 12:144 AMP Surrogate: 2-Fluorobiphenyl 105 Limits: 40-140%04/01/23 12:144 AMP V31501 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V31296 03/28/23 08:00 287 mg/Kg - dry 1.50 9.84Aliphatic C5-C8 100 03/28/23 17:21 V31297TBL 319 mg/Kg - dry 5.61 9.84Aliphatic C9-C12 100 03/28/23 17:21 V31297TBL 176 mg/Kg - dry 0.767 9.84Aromatic C9-C10 100 03/28/23 17:21 V31297TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)85.7 Limits: 70-130%03/28/23 17:21100 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)101 Limits: 70-130%03/28/23 17:21100 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQL Page 10 of 18 Quality Control Data 23-081-0101Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V31378QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V31269 Associated Lab Samples: 91869 LRB-V31269 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/28/23 16:470.6600.116<0.116mg/KgAcenaphthene 03/28/23 16:470.6600.105<0.105mg/KgAcenaphthylene 03/28/23 16:470.6600.143<0.143mg/KgAnthracene 03/28/23 16:470.6600.139<0.139mg/KgBenzo(a)anthracene 03/28/23 16:470.6600.147<0.147mg/KgBenzo(a)pyrene 03/28/23 16:470.6600.146<0.146mg/KgBenzo(b)fluoranthene 03/28/23 16:470.6600.136<0.136mg/KgBenzo(g,h,i)perylene 03/28/23 16:470.6600.137<0.137mg/KgBenzo(k)fluoranthene 03/28/23 16:470.6600.142<0.142mg/KgChrysene 03/28/23 16:470.6600.230<0.230mg/KgDibenz(a,h)anthracene 03/28/23 16:470.6600.123<0.123mg/KgFluoranthene 03/28/23 16:470.6600.128<0.128mg/KgFluorene 03/28/23 16:470.6600.179<0.179mg/KgIndeno(1,2,3-cd)pyrene 03/28/23 16:470.6600.106<0.106mg/Kg1-Methylnaphthalene 03/28/23 16:470.6600.100<0.100mg/Kg2-Methylnaphthalene 03/28/23 16:470.6600.144<0.144mg/KgNaphthalene 03/28/23 16:470.6600.208<0.208mg/KgPhenanthrene 03/28/23 16:470.6600.134<0.134mg/KgPyrene 03/28/23 16:472-Fluorobiphenyl (S)101 44-115 03/28/23 16:472-Fluorophenol (S)86.4 35-115 03/28/23 16:47Nitrobenzene-d5 (S)91.0 37-122 03/28/23 16:474-Terphenyl-d14 (S)116 54-127 03/28/23 16:472,4,6-Tribromophenol (S)80.4 39-132 03/28/23 16:47Phenol-d5 (S)79.2 34-121 Page 1 of 6Date:04/03/2023 11:22 AM Page 11 of 18 Quality Control Data 23-081-0101Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V31378QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V31269 LCS-V31269 LCSD-V31269Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1.66 99.495.21.591.67mg/KgAcenaphthene 40-123 4.3 20 1.72 10397.61.631.67mg/KgAcenaphthylene 32-132 5.3 20 2.03 1221041.731.67mg/KgAnthracene 47-123 15.9 20 1.81 1081051.761.67mg/KgBenzo(a)anthracene 49-126 2.8 20 1.94 1161141.901.67mg/KgBenzo(a)pyrene 45-129 2.0 20 1.78 1071031.721.67mg/KgBenzo(b)fluoranthene 45-132 3.4 20 1.69 10199.41.661.67mg/KgBenzo(g,h,i)perylene 43-134 1.7 20 1.82 1091021.701.67mg/KgBenzo(k)fluoranthene 47-132 6.8 20 1.76 1051021.701.67mg/KgChrysene 50-124 3.4 20 1.80 1081051.751.67mg/KgDibenz(a,h)anthracene 45-134 2.8 20 1.67 10098.21.641.67mg/KgFluoranthene 50-127 1.8 20 1.78 10797.61.631.67mg/KgFluorene 43-125 8.7 20 1.72 1031011.681.67mg/KgIndeno(1,2,3-cd)pyrene 45-133 2.3 20 1.51 90.486.81.451.67mg/Kg1-Methylnaphthalene 40-119 4.0 20 1.58 94.685.61.431.67mg/Kg2-Methylnaphthalene 38-122 9.9 20 1.78 10788.61.481.67mg/KgNaphthalene 35-123 18.4 20 1.83 1101001.671.67mg/KgPhenanthrene 50-121 9.1 20 1.83 1101041.731.67mg/KgPyrene 47-127 5.6 20 1051042-Fluorobiphenyl (S)44-115 87.382.82-Fluorophenol (S)35-115 90.490.4Nitrobenzene-d5 (S)37-122 1151164-Terphenyl-d14 (S)54-127 81.081.62,4,6-Tribromophenol (S)39-132 80.776.8Phenol-d5 (S)34-121 Page 2 of 6Date:04/03/2023 11:22 AM Page 12 of 18 Quality Control Data 23-081-0101Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Massachusetts EPH MADEP-EPH V31501QC Analytical Batch(es): Analysis Method: Analysis Description: MAEPH (Prep) QC Prep:V31319 Associated Lab Samples: 91868, 91869 LRB-V31319 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/31/23 18:4650.09.20<9.20mg/KgAliphatic C9-C18 03/31/23 18:4650.012.2<12.2mg/KgAliphatic C19-C36 03/31/23 18:4650.014.2<14.2mg/KgAromatic C11-C22 03/31/23 18:462-Fluorobiphenyl (S)105 40-140 03/31/23 18:462-Bromonaphthalene (S)I 40-140 03/31/23 18:46Chlorooctadecane (S)77.8 40-140 03/31/23 18:46OTP Surrogate (S)92.8 40-140 LCS-V31319 LCSD-V31319Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 35.4 59.060.636.460.0mg/KgAliphatic C9-C18 40-140 2.7 50 64.5 80.680.564.480.0mg/KgAliphatic C19-C36 40-140 0.1 50 166 97.691.7156170mg/KgAromatic C11-C22 40-140 6.2 50 1051002-Fluorobiphenyl (S)40-140 I*I*2-Bromonaphthalene (S)40-140 83.083.7Chlorooctadecane (S)40-140 90.386.2OTP Surrogate (S)40-140 Page 3 of 6* QC Fail Date:04/03/2023 11:22 AM Page 13 of 18 Quality Control Data 23-081-0101Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Massachusetts VPH MADEP-VPH V31297QC Analytical Batch(es): Analysis Method: Analysis Description: MAVPH (Prep) QC Prep:V31296 Associated Lab Samples: 91868, 91869 LRB-V31296 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/28/23 10:418.001.22<1.22mg/KgAliphatic C5-C8 03/28/23 10:418.004.56<4.56mg/KgAliphatic C9-C12 03/28/23 10:418.000.624<0.624mg/KgAromatic C9-C10 03/28/23 10:412,5-Dibromotoluene (FID) (S)101 70-130 03/28/23 10:412,5-Dibromotoluene (PID) (S)113 70-130 LCS-V31296 LCSD-V31296Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 29.1 90.991.829.432.0mg/KgAliphatic C5-C8 70-130 1.0 50 36.4 11412138.732.0mg/KgAliphatic C9-C12 70-130 6.1 50 12.5 11711412.210.7mg/KgAromatic C9-C10 70-130 2.4 50 10298.12,5-Dibromotoluene (FID) (S)70-130 1151182,5-Dibromotoluene (PID) (S)70-130 Page 4 of 6Date:04/03/2023 11:22 AM Page 14 of 18 Quality Control Data 23-081-0101Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 Dry Weight Determination SW-DRYWT V31240QC Analytical Batch: Analysis Method: Analysis Description: V 91768-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 03/27/23 15:511.519.219.5%Moisture V 91869-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 03/27/23 15:510.518.818.7%Moisture Page 5 of 6Date:04/03/2023 11:22 AM Page 15 of 18 Quality Control Data 23-081-0101Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 Dry Weight Determination SW-DRYWT V31307QC Analytical Batch: Analysis Method: Analysis Description: V 91868-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 03/28/23 15:311.314.514.7%Moisture V 92036-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 03/28/23 15:314.718.519.4%Moisture Page 6 of 6Date:04/03/2023 11:22 AM Page 16 of 18 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-081-0101 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT-15 4.1 C 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)ü 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:Angela D Overcash Date & Time:03/22/2023 13:43:45 Special precautions or instructions included? Comments: Page 17 of 18 Page 18 of 18   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.   4/7/2023 Hart & Hickman (Charlotte) David Graham 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 23-081-0100 Client Project Description: DOT-476 Dear David Graham: Waypoint Analytical, LLC (Charlotte) received sample(s) on 3/22/2023 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 91 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Page 1 of 1 00016/23-081-0100 Page 2 of 91 Report Number: Sample Summary Table Client Project Description: 23-081-0100 DOT-476 Lab No Client Sample ID Matrix Date Collected Date Received 03/21/2023 14:10Aqueous 91859 MW-1 03/22/2023 12:15 03/21/2023 15:25Aqueous 91860 MW-2 03/22/2023 12:15 03/21/2023 09:35Aqueous 91861 MW-3 03/22/2023 12:15 03/20/2023 16:10Aqueous 91862 MW-4 03/22/2023 12:15 03/20/2023 15:05Aqueous 91863 MW-5 03/22/2023 12:15 03/21/2023 10:35Aqueous 91864 DW-1 03/22/2023 12:15 Page 3 of 91 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-081-0100 Report Limit Project:DOT-476 V 91859MW-1 8.36 03/31/2023 02:236200BBenzeneµg/L 1.80 10.7 03/31/2023 02:236200Bn-Butylbenzene µg/L 1.80 10.7 03/31/2023 02:236200Bsec-Butyl benzene µg/L 2.00 J3.38 03/31/2023 02:236200BEthylbenzeneµg/L 1.70 14.5 03/31/2023 02:236200BIsopropylbenzeneµg/L 1.80 30.3 03/31/2023 02:236200BNaphthaleneµg/L 4.70 42.5 03/31/2023 02:236200Bn-Propylbenzene µg/L 1.90 J1.39 03/29/2023 21:19625.1 Acenaphthene µg/L 0.303 J1.30 03/29/2023 21:19625.1 Dibenzofuran µg/L 0.861 3.68 03/29/2023 21:19625.1 Fluorene µg/L 0.811 16.1 03/29/2023 21:19625.1 1-Methylnaphthalene µg/L 1.15 9.94 03/29/2023 21:19625.1 2-Methylnaphthalene µg/L 0.669 12.7 03/29/2023 21:19625.1 Naphthalene µg/L 0.731 2.70 03/29/2023 21:19625.1 Phenanthrene µg/L 0.430 J70.5 04/03/2023 14:44MADEP-EPH Aliphatic C9-C18 µg/L 28.2 728 04/03/2023 14:44MADEP-EPH Aromatic C11-C22 µg/L 61.2 758 03/25/2023 12:08MADEP-VPH Aliphatic C5-C8 µg/L 11.5 512 03/25/2023 12:08MADEP-VPH Aliphatic C9-C12 µg/L 25.8 229 03/25/2023 12:08MADEP-VPH Aromatic C9-C10 µg/L 4.02 V 91860MW-2 0.848 03/30/2023 23:126200BBenzeneµg/L 0.180 J0.325 03/30/2023 23:126200Bsec-Butyl benzene µg/L 0.200 0.988 03/30/2023 23:126200BIsopropylbenzeneµg/L 0.180 1.97 03/30/2023 23:126200Bn-Propylbenzene µg/L 0.190 J61.2 04/03/2023 15:20MADEP-EPH Aromatic C11-C22 µg/L 61.2 J34.6 03/25/2023 02:17MADEP-VPH Aliphatic C9-C12 µg/L 25.8 V 91861MW-3 1.21 03/30/2023 23:396200Bsec-Butyl benzene µg/L 0.200 1.10 03/30/2023 23:396200BDi-Isopropyl Ether (DIPE)µg/L 0.500 J0.562 03/29/2023 00:08625.1 Acenaphthene µg/L 0.303 J0.921 03/29/2023 00:08625.1 Fluorene µg/L 0.811 V 91862MW-4 J0.428 03/31/2023 00:066200Bsec-Butyl benzene µg/L 0.200 J0.602 03/28/2023 23:44625.1 Acenaphthene µg/L 0.303 J29.3 04/03/2023 15:56MADEP-EPH Aliphatic C9-C18 µg/L 28.2 Page 4 of 91 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-081-0100 Report Limit Project:DOT-476 V 91862MW-4 J13904/03/2023 15:56MADEP-EPH Aromatic C11-C22 µg/L 61.2 J41.8 03/25/2023 12:31MADEP-VPH Aliphatic C5-C8 µg/L 11.5 J47.4 03/25/2023 12:31MADEP-VPH Aliphatic C9-C12 µg/L 25.8 J9.91 03/25/2023 12:31MADEP-VPH Aromatic C9-C10 µg/L 4.02 Page 5 of 91   Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: DOT-476 Lab Report Number: 23-081-0100 Date: 4/7/2023 625.1 - Base/Neutrals and Acids by GC/MS Method 625.1 Analyte: 1,2,4-Trichlorobenzene QC Batch No: V31390/V31295 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. No hits in samples. No further action taken. Analyte: 2-Chloronaphthalene QC Batch No: V31390/V31295 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. No hits in samples. No further action taken. Analyte: 3,3`-Dichlorobenzidine QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: 4,6-Dinitro-2-methylphenol QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: 4-Nitrophenol QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Benzo(a)anthracene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Benzo(a)pyrene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Benzo(b)fluoranthene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Benzo(g,h,i)perylene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Benzo(k)fluoranthene QC Batch No: V31390/V31295 Page 6 of 91   Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Benzoic Acid QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Bis(2-ethylhexyl)phthalate QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Chrysene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Dibenz(a,h)anthracene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Di-n-octyl phthalate QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Hexachloroethane QC Batch No: V31390/V31295 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. No hits in samples. No further action taken. Analyte: Indeno(1,2,3-cd)pyrene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Pentachlorophenol QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Phenanthrene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Pyrene QC Batch No: V31390/V31295 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Massachusetts EPH Method MADEP-EPH QC Batch No: V31552 LCS/LCSD ranges are above the accepted range. Reporting non-detects and reprepping hits. Sample 91859 (MW-1) QC Batch No: V31552 Out-of-hold reprep confirms original. Reprep had failing QC (low surrogate in LRB and LCS as well as low ALI C9-C18 range in LCS and LCSD). Page 7 of 91   Sample 91860 (MW-2) QC Batch No: V31552 Out-of-hold reprep confirms original. Reprep had failing QC (low surrogate in LRB and LCS as well as low ALI C9-C18 range in LCS and LCSD). Sample 91862 (MW-4) QC Batch No: V31552 Out-of-hold reprep confirms original. Reprep had failing QC (low surrogate in LRB and LCS as well as low ALI C9- C18 range in LCS and LCSD). Analyte: 2-Bromonaphthalene QC Batch No: V31552/V31458 Fractionation surrogate 2-Bromonaphthalene is running high in entire batch due to concentrated standard. The other fractionation surrogate 2-Fluorobiphenyl is performing as expected which proved the fractionation process is working. Analyte: 2-Bromonaphthalene QC Batch No: V31552/V31458 Surrogate Out Volatile Organic Compounds - GC/MS Method 6200B Analyte: 1,1,1-Trichloroethane QC Batch No: V31534/V31446 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: 1,1-Dichloroethane QC Batch No: V31534/V31446 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: 1,1-Dichloroethene QC Batch No: V31534/V31446 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: 1,1-Dichloropropene QC Batch No: V31534/V31446 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: V31449/V31446 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 Page 8 of 91   QC Batch No: V31534/V31446 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-Trichloropropane QC Batch No: V31534/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: 1,2,4-Trichlorobenzene QC Batch No: V31449/V31446 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: V31534/V31446 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: V31534/V31446 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-Butanone QC Batch No: V31534/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: 2-Chlorotoluene QC Batch No: V31449/V31446 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: Acetone QC Batch No: V31598/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Bromochloromethane QC Batch No: V31534/V31446 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: Bromoform QC Batch No: V31534/V31446 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. Page 9 of 91   Analyte: Bromoform QC Batch No: V31598/V31446 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: Bromomethane QC Batch No: V31598/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Carbon Tetrachloride QC Batch No: V31449/V31446 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: V31534/V31446 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: Chloroform QC Batch No: V31534/V31446 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: V31598/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: cis-1,2-Dichloroethene QC Batch No: V31534/V31446 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: Ethanol QC Batch No: V31598/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Hexachlorobutadiene QC Batch No: V31449/V31446 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: V31534/V31446 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. Page 10 of 91   Analyte: Hexachlorobutadiene QC Batch No: V31598/V31446 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: Methyl tert-butyl ether (MTBE) QC Batch No: V31598/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Methylene chloride QC Batch No: V31598/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: n-Butylbenzene QC Batch No: V31598/V31446 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: n-Propylbenzene QC Batch No: V31534/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: trans-1,2-Dichloroethene QC Batch No: V31534/V31446 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: trans-1,3-Dichloropropene QC Batch No: V31449/V31446 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: trans-1,3-Dichloropropene QC Batch No: V31534/V31446 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: Trichlorofluoromethane QC Batch No: V31598/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Vinyl acetate QC Batch No: V31598/V31446 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Vinyl chloride QC Batch No: V31598/V31446 Page 11 of 91   Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Page 12 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-1 91859 Matrix: 3/21/2023 14:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <18.0 µg/L 18.0 100Acetone 10 03/31/23 02:23 V31449MSA 8.36 µg/L 1.80 5.00Benzene 10 03/31/23 02:23 V31449MSA <2.10 µg/L 2.10 5.00Bromobenzene 10 03/31/23 02:23 V31449MSA <4.20 µg/L 4.20 10.0Bromochloromethane 10 03/31/23 02:23 V31449MSA <1.60 µg/L 1.60 5.00Bromodichloromethane 10 03/31/23 02:23 V31449MSA <15.0 µg/L 15.0 50.0Bromoform 10 03/31/23 02:23 V31449MSA <2.80 µg/L 2.80 10.0Bromomethane 10 03/31/23 02:23 V31449MSA 10.7 µg/L 1.80 5.00n-Butylbenzene 10 03/31/23 02:23 V31449MSA 10.7 µg/L 2.00 5.00sec-Butyl benzene 10 03/31/23 02:23 V31449MSA <9.20 µg/L 9.20 20.0tert-Butyl benzene 10 03/31/23 02:23 V31449MSA <1.80 µg/L 1.80 5.00Carbon Tetrachloride 10 03/31/23 02:23 V31449MSA <1.90 µg/L 1.90 5.00Chlorobenzene 10 03/31/23 02:23 V31449MSA <1.90 µg/L 1.90 5.00Chlorodibromomethane 10 03/31/23 02:23 V31449MSA <4.30 µg/L 4.30 10.0Chloroethane 10 03/31/23 02:23 V31449MSA <2.20 µg/L 2.20 5.00Chloroform 10 03/31/23 02:23 V31449MSA <2.20 µg/L 2.20 5.00Chloromethane 10 03/31/23 02:23 V31449MSA <2.00 µg/L 2.00 5.002-Chlorotoluene 10 03/31/23 02:23 V31449MSA <2.00 µg/L 2.00 5.004-Chlorotoluene 10 03/31/23 02:23 V31449MSA <5.00 µg/L 5.00 5.00Di-Isopropyl Ether (DIPE)10 03/31/23 02:23 V31449MSA <11.0 µg/L 11.0 20.01,2-Dibromo-3-Chloropropane 10 03/31/23 02:23 V31449MSA <2.00 µg/L 2.00 5.001,2-Dibromoethane 10 03/31/23 02:23 V31449MSA <2.30 µg/L 2.30 5.00Dibromomethane 10 03/31/23 02:23 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 13 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-1 91859 Matrix: 3/21/2023 14:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <2.20 µg/L 2.20 5.001,2-Dichlorobenzene 10 03/31/23 02:23 V31449MSA <1.90 µg/L 1.90 5.001,3-Dichlorobenzene 10 03/31/23 02:23 V31449MSA <2.10 µg/L 2.10 5.001,4-Dichlorobenzene 10 03/31/23 02:23 V31449MSA <12.0 µg/L 12.0 50.0Dichlorodifluoromethane 10 03/31/23 02:23 V31449MSA <2.40 µg/L 2.40 5.001,1-Dichloroethane 10 03/31/23 02:23 V31449MSA <1.50 µg/L 1.50 5.001,2-Dichloroethane 10 03/31/23 02:23 V31449MSA <1.50 µg/L 1.50 5.001,1-Dichloroethene 10 03/31/23 02:23 V31449MSA <2.00 µg/L 2.00 5.00cis-1,2-Dichloroethene 10 03/31/23 02:23 V31449MSA <1.80 µg/L 1.80 5.00trans-1,2-Dichloroethene 10 03/31/23 02:23 V31449MSA <1.90 µg/L 1.90 5.001,2-Dichloropropane 10 03/31/23 02:23 V31449MSA <1.30 µg/L 1.30 5.001,3-Dichloropropane 10 03/31/23 02:23 V31449MSA <2.10 µg/L 2.10 20.02,2-Dichloropropane 10 03/31/23 02:23 V31449MSA <2.00 µg/L 2.00 5.001,1-Dichloropropene 10 03/31/23 02:23 V31449MSA <2.10 µg/L 2.10 5.00cis-1,3-Dichloropropene 10 03/31/23 02:23 V31449MSA <1.50 µg/L 1.50 5.00trans-1,3-Dichloropropene 10 03/31/23 02:23 V31449MSA <420 µg/L 420 2000Ethanol 10 03/31/23 02:23 V31449MSA 3.38 J µg/L 1.70 5.00Ethylbenzene 10 03/31/23 02:23 V31449MSA <3.50 µg/L 3.50 30.0Hexachlorobutadiene 10 03/31/23 02:23 V31449MSA <3.80 µg/L 3.80 10.02-Hexanone 10 03/31/23 02:23 V31449MSA 14.5 µg/L 1.80 5.00Isopropylbenzene 10 03/31/23 02:23 V31449MSA <0.890 µg/L 0.890 5.004-Isopropyl toluene 10 03/31/23 02:23 V31449MSA <7.10 µg/L 7.10 50.0Methyl Ethyl Ketone (MEK)10 03/31/23 02:23 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 14 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-1 91859 Matrix: 3/21/2023 14:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <1.40 µg/L 1.40 10.0Methyl tert-butyl ether (MTBE)10 03/31/23 02:23 V31449MSA <0.780 µg/L 0.780 10.04-Methyl-2-Pentanone 10 03/31/23 02:23 V31449MSA <3.30 µg/L 3.30 20.0Methylene Chloride 10 03/31/23 02:23 V31449MSA 30.3 µg/L 4.70 10.0Naphthalene 10 03/31/23 02:23 V31449MSA 42.5 µg/L 1.90 5.00n-Propylbenzene 10 03/31/23 02:23 V31449MSA <2.20 µg/L 2.20 5.00Styrene 10 03/31/23 02:23 V31449MSA <1.60 µg/L 1.60 5.001,1,1,2-Tetrachloroethane 10 03/31/23 02:23 V31449MSA <1.60 µg/L 1.60 5.001,1,2,2-Tetrachloroethane 10 03/31/23 02:23 V31449MSA <2.20 µg/L 2.20 5.00Tetrachloroethene 10 03/31/23 02:23 V31449MSA <2.20 µg/L 2.20 5.00Toluene 10 03/31/23 02:23 V31449MSA <3.80 µg/L 3.80 5.001,2,3-Trichlorobenzene 10 03/31/23 02:23 V31449MSA <3.10 µg/L 3.10 5.001,2,4-Trichlorobenzene 10 03/31/23 02:23 V31449MSA <1.60 µg/L 1.60 5.001,1,1-Trichloroethane 10 03/31/23 02:23 V31449MSA <0.960 µg/L 0.960 5.001,1,2-Trichloroethane 10 03/31/23 02:23 V31449MSA <1.80 µg/L 1.80 5.00Trichloroethene 10 03/31/23 02:23 V31449MSA <1.80 µg/L 1.80 5.00Trichlorofluoromethane 10 03/31/23 02:23 V31449MSA <2.70 µg/L 2.70 5.001,2,3-Trichloropropane 10 03/31/23 02:23 V31449MSA <1.90 µg/L 1.90 5.001,2,4-Trimethylbenzene 10 03/31/23 02:23 V31449MSA <1.80 µg/L 1.80 5.001,3,5-Trimethylbenzene 10 03/31/23 02:23 V31449MSA <10.0 µg/L 10.0 50.0Vinyl Acetate 10 03/31/23 02:23 V31449MSA <1.70 µg/L 1.70 5.00Vinyl Chloride 10 03/31/23 02:23 V31449MSA <2.10 µg/L 2.10 5.00o-Xylene 10 03/31/23 02:23 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 15 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-1 91859 Matrix: 3/21/2023 14:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <4.20 µg/L 4.20 10.0m,p-Xylene 10 03/31/23 02:23 V31449MSA <2.1 µg/L 2.10 5.00Xylene (Total)10 03/31/23 02:23 V31449 Surrogate: 4-Bromofluorobenzene 98.6 Limits: 70-130%03/31/23 02:2310 MSA V31449 Surrogate: Dibromofluoromethane 102 Limits: 70-130%03/31/23 02:2310 MSA V31449 Surrogate: 1,2-Dichloroethane - d4 108 Limits: 70-130%03/31/23 02:2310 MSA V31449 Surrogate: Toluene-d8 102 Limits: 70-130%03/31/23 02:2310 MSA V31449 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V31295 03/28/23 09:04 1.39 J µg/L 0.303 2.01Acenaphthene 1 03/29/23 21:19 V31440JMV <0.298 µg/L 0.298 2.01Acenaphthylene 1 03/29/23 21:19 V31440JMV <0.840 µg/L 0.840 2.01Anthracene 1 03/29/23 21:19 V31440JMV <1.33 µg/L 1.33 10.1Benzidine 1 03/29/23 21:19 V31440JMV <0.640 µg/L 0.640 2.01Benzo(a)anthracene 1 03/29/23 21:19 V31440JMV <1.03 µg/L 1.03 2.01Benzo(a)pyrene 1 03/29/23 21:19 V31440JMV <2.50 µg/L 2.50 5.03Benzo(b)fluoranthene 1 03/29/23 21:19 V31440JMV <1.02 µg/L 1.02 5.03Benzo(g,h,i)perylene 1 03/29/23 21:19 V31440JMV <2.00 µg/L 2.00 5.03Benzo(k)fluoranthene 1 03/29/23 21:19 V31440JMV <1.11 µg/L 1.11 10.1Benzoic Acid 1 03/29/23 21:19 V31440JMV <0.688 µg/L 0.688 5.03Benzyl alcohol 1 03/29/23 21:19 V31440JMV <0.470 µg/L 0.470 5.03Bis(2-Chloroethoxy)methane 1 03/29/23 21:19 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 16 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-1 91859 Matrix: 3/21/2023 14:10 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):V31295 03/28/23 09:04 <1.05 µg/L 1.05 5.03Bis(2-Chloroethyl)ether 1 03/29/23 21:19 V31440JMV <1.09 µg/L 1.09 5.03Bis(2-Chloroisopropyl)ether 1 03/29/23 21:19 V31440JMV <3.49 µg/L 3.49 10.1Bis(2-ethylhexyl)phthalate 1 03/29/23 21:19 V31440JMV <1.12 µg/L 1.12 5.034-Bromophenyl phenyl ether 1 03/29/23 21:19 V31440JMV <1.84 µg/L 1.84 5.03Butyl benzyl phthalate 1 03/29/23 21:19 V31440JMV <1.19 µg/L 1.19 5.034-Chloro-3-methylphenol 1 03/29/23 21:19 V31440JMV <7.42 µg/L 7.42 20.12-Chloronaphthalene 1 03/29/23 21:19 V31440JMV <0.947 µg/L 0.947 10.12-Chlorophenol 1 03/29/23 21:19 V31440JMV <1.72 µg/L 1.72 5.034-Chlorophenyl phenyl ether 1 03/29/23 21:19 V31440JMV <0.407 µg/L 0.407 2.01Chrysene 1 03/29/23 21:19 V31440JMV <0.436 µg/L 0.436 2.01Dibenz(a,h)anthracene 1 03/29/23 21:19 V31440JMV 1.30 J µg/L 0.861 5.03Dibenzofuran 1 03/29/23 21:19 V31440JMV <2.01 µg/L 2.01 5.031,2-Dichlorobenzene 1 03/29/23 21:19 V31440JMV <2.01 µg/L 2.01 5.031,3-Dichlorobenzene 1 03/29/23 21:19 V31440JMV <2.06 µg/L 2.06 5.031,4-Dichlorobenzene 1 03/29/23 21:19 V31440JMV <1.90 µg/L 1.90 5.033,3'-Dichlorobenzidine 1 03/29/23 21:19 V31440JMV <1.47 µg/L 1.47 10.12,4-Dichlorophenol 1 03/29/23 21:19 V31440JMV <0.749 µg/L 0.749 5.03Diethyl phthalate 1 03/29/23 21:19 V31440JMV <0.944 µg/L 0.944 5.03Dimethyl phthalate 1 03/29/23 21:19 V31440JMV <1.58 µg/L 1.58 20.12,4-Dimethylphenol 1 03/29/23 21:19 V31440JMV <2.07 µg/L 2.07 5.03Di-n-butyl phthalate 1 03/29/23 21:19 V31440JMV <2.09 µg/L 2.09 10.14,6-Dinitro-2-methylphenol 1 03/29/23 21:19 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 17 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-1 91859 Matrix: 3/21/2023 14:10 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):V31295 03/28/23 09:04 <1.94 µg/L 1.94 10.12,4-Dinitrophenol 1 03/29/23 21:19 V31440JMV <1.12 µg/L 1.12 5.032,4-Dinitrotoluene 1 03/29/23 21:19 V31440JMV <0.813 µg/L 0.813 5.032,6-Dinitrotoluene 1 03/29/23 21:19 V31440JMV <1.66 µg/L 1.66 5.03Di-n-Octyl Phthalate 1 03/29/23 21:19 V31440JMV <0.251 µg/L 0.251 2.01Fluoranthene 1 03/29/23 21:19 V31440JMV 3.68 µg/L 0.811 2.01Fluorene 1 03/29/23 21:19 V31440JMV <0.984 µg/L 0.984 5.03Hexachlorobenzene 1 03/29/23 21:19 V31440JMV <2.75 µg/L 2.75 5.03Hexachlorobutadiene 1 03/29/23 21:19 V31440JMV <2.06 µg/L 2.06 5.03Hexachlorocyclopentadiene 1 03/29/23 21:19 V31440JMV <1.77 µg/L 1.77 5.03Hexachloroethane 1 03/29/23 21:19 V31440JMV <0.479 µg/L 0.479 2.01Indeno(1,2,3-cd)pyrene 1 03/29/23 21:19 V31440JMV <0.446 µg/L 0.446 5.03Isophorone 1 03/29/23 21:19 V31440JMV 16.1 µg/L 1.15 2.011-Methylnaphthalene 1 03/29/23 21:19 V31440JMV 9.94 µg/L 0.669 2.012-Methylnaphthalene 1 03/29/23 21:19 V31440JMV 12.7 µg/L 0.731 2.01Naphthalene 1 03/29/23 21:19 V31440JMV <0.910 µg/L 0.910 5.03Nitrobenzene 1 03/29/23 21:19 V31440JMV <0.495 µg/L 0.495 5.032-Nitrophenol 1 03/29/23 21:19 V31440JMV <1.24 µg/L 1.24 10.14-Nitrophenol 1 03/29/23 21:19 V31440JMV <1.11 µg/L 1.11 5.03N-Nitrosodiphenylamine 1 03/29/23 21:19 V31440JMV <0.644 µg/L 0.644 5.03N-Nitroso-di-n-propylamine 1 03/29/23 21:19 V31440JMV <1.44 µg/L 1.44 5.03Pentachlorophenol 1 03/29/23 21:19 V31440JMV 2.70 µg/L 0.430 2.01Phenanthrene 1 03/29/23 21:19 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 18 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-1 91859 Matrix: 3/21/2023 14:10 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):V31295 03/28/23 09:04 <0.654 µg/L 0.654 5.03Phenol 1 03/29/23 21:19 V31440JMV <0.436 µg/L 0.436 2.01Pyrene 1 03/29/23 21:19 V31440JMV <2.22 µg/L 2.22 5.031,2,4-Trichlorobenzene 1 03/29/23 21:19 V31440JMV <1.33 µg/L 1.33 5.032,4,6-Trichlorophenol 1 03/29/23 21:19 V31440JMV 625.1Surrogate: Phenol-d5 22.3 Limits: 10-63%03/29/23 21:191 JMV Surrogate: 2-Fluorobiphenyl 73.6 Limits: 49-118%03/29/23 21:191 JMV V31440 Surrogate: 2-Fluorophenol 34.6 Limits: 22-84%03/29/23 21:191 JMV V31440 Surrogate: Nitrobenzene-d5 64.8 Limits: 43-123%03/29/23 21:191 JMV V31440 Surrogate: 4-Terphenyl-d14 88.3 Limits: 49-151%03/29/23 21:191 JMV V31440 Surrogate: 2,4,6-Tribromophenol 56.9 Limits: 31-144%03/29/23 21:191 JMV V31440 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 19 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-1 91859 Matrix: 3/21/2023 14:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V31458 03/31/23 12:50 70.5 J µg/L 28.2 350Aliphatic C9-C18 1 04/03/23 14:44 V31552AMP <124 µg/L 124 500Aliphatic C19-C36 1 04/03/23 14:44 V31552AMP 728 µg/L 61.2 250Aromatic C11-C22 1 04/03/23 14:44 V31552AMP MADEP-EPHSurrogate: 2-Bromonaphthalene I *Limits: 40-140%04/03/23 14:441 AMP MADEP-EPHSurrogate: Chlorooctadecane 71.9 Limits: 40-140%04/03/23 14:441 AMP MADEP-EPHSurrogate: OTP Surrogate 80.9 Limits: 40-140%04/03/23 14:441 AMP Surrogate: 2-Fluorobiphenyl 99.8 Limits: 40-140%04/03/23 14:441 AMP V31552 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V31197 03/24/23 08:00 758 µg/L 11.5 50.0Aliphatic C5-C8 1 03/25/23 12:08 V31198TBL 512 µg/L 25.8 50.0Aliphatic C9-C12 1 03/25/23 12:08 V31198TBL 229 µg/L 4.02 50.0Aromatic C9-C10 1 03/25/23 12:08 V31198TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)114 Limits: 70-130%03/25/23 12:081 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)98.5 Limits: 70-130%03/25/23 12:081 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 20 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-2 91860 Matrix: 3/21/2023 15:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <1.80 µg/L 1.80 10.0Acetone 1 03/30/23 23:12 V31449MSA 0.848 µg/L 0.180 0.500Benzene 1 03/30/23 23:12 V31449MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 03/30/23 23:12 V31449MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 03/30/23 23:12 V31449MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 03/30/23 23:12 V31449MSA <1.50 µg/L 1.50 5.00Bromoform 1 03/30/23 23:12 V31449MSA <0.280 µg/L 0.280 1.00Bromomethane 1 03/30/23 23:12 V31449MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 03/30/23 23:12 V31449MSA 0.325 J µg/L 0.200 0.500sec-Butyl benzene 1 03/30/23 23:12 V31449MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 03/30/23 23:12 V31449MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 03/30/23 23:12 V31449MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 03/30/23 23:12 V31449MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 03/30/23 23:12 V31449MSA <0.430 µg/L 0.430 1.00Chloroethane 1 03/30/23 23:12 V31449MSA <0.220 µg/L 0.220 0.500Chloroform 1 03/30/23 23:12 V31449MSA <0.220 µg/L 0.220 0.500Chloromethane 1 03/30/23 23:12 V31449MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 03/30/23 23:12 V31449MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 03/30/23 23:12 V31449MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 03/30/23 23:12 V31449MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 03/30/23 23:12 V31449MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 03/30/23 23:12 V31449MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 03/30/23 23:12 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 21 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-2 91860 Matrix: 3/21/2023 15:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 03/30/23 23:12 V31449MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 03/30/23 23:12 V31449MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 03/30/23 23:12 V31449MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 03/30/23 23:12 V31449MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 03/30/23 23:12 V31449MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 03/30/23 23:12 V31449MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 03/30/23 23:12 V31449MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 03/30/23 23:12 V31449MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 03/30/23 23:12 V31449MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 03/30/23 23:12 V31449MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 03/30/23 23:12 V31449MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 03/30/23 23:12 V31449MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 03/30/23 23:12 V31449MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 03/30/23 23:12 V31449MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 03/30/23 23:12 V31449MSA <42.0 µg/L 42.0 200Ethanol 1 03/30/23 23:12 V31449MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 03/30/23 23:12 V31449MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 03/30/23 23:12 V31449MSA <0.380 µg/L 0.380 1.002-Hexanone 1 03/30/23 23:12 V31449MSA 0.988 µg/L 0.180 0.500Isopropylbenzene 1 03/30/23 23:12 V31449MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 03/30/23 23:12 V31449MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 03/30/23 23:12 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 22 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-2 91860 Matrix: 3/21/2023 15:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 03/30/23 23:12 V31449MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 03/30/23 23:12 V31449MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 03/30/23 23:12 V31449MSA <0.470 µg/L 0.470 1.00Naphthalene 1 03/30/23 23:12 V31449MSA 1.97 µg/L 0.190 0.500n-Propylbenzene 1 03/30/23 23:12 V31449MSA <0.220 µg/L 0.220 0.500Styrene 1 03/30/23 23:12 V31449MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 03/30/23 23:12 V31449MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 03/30/23 23:12 V31449MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 03/30/23 23:12 V31449MSA <0.220 µg/L 0.220 0.500Toluene 1 03/30/23 23:12 V31449MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 03/30/23 23:12 V31449MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 03/30/23 23:12 V31449MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 03/30/23 23:12 V31449MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 03/30/23 23:12 V31449MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 03/30/23 23:12 V31449MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 03/30/23 23:12 V31449MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 03/30/23 23:12 V31449MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 03/30/23 23:12 V31449MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 03/30/23 23:12 V31449MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 03/30/23 23:12 V31449MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 03/30/23 23:12 V31449MSA <0.210 µg/L 0.210 0.500o-Xylene 1 03/30/23 23:12 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 23 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-2 91860 Matrix: 3/21/2023 15:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 03/30/23 23:12 V31449MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 03/30/23 23:12 V31449 Surrogate: 4-Bromofluorobenzene 97.6 Limits: 70-130%03/30/23 23:121 MSA V31449 Surrogate: Dibromofluoromethane 89.4 Limits: 70-130%03/30/23 23:121 MSA V31449 Surrogate: 1,2-Dichloroethane - d4 111 Limits: 70-130%03/30/23 23:121 MSA V31449 Surrogate: Toluene-d8 113 Limits: 70-130%03/30/23 23:121 MSA V31449 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V31295 03/28/23 09:04 <0.303 µg/L 0.303 2.01Acenaphthene 1 03/29/23 21:42 V31440JMV <0.298 µg/L 0.298 2.01Acenaphthylene 1 03/29/23 21:42 V31440JMV <0.840 µg/L 0.840 2.01Anthracene 1 03/29/23 21:42 V31440JMV <1.33 µg/L 1.33 10.1Benzidine 1 03/29/23 21:42 V31440JMV <0.640 µg/L 0.640 2.01Benzo(a)anthracene 1 03/29/23 21:42 V31440JMV <1.03 µg/L 1.03 2.01Benzo(a)pyrene 1 03/29/23 21:42 V31440JMV <2.50 µg/L 2.50 5.03Benzo(b)fluoranthene 1 03/29/23 21:42 V31440JMV <1.02 µg/L 1.02 5.03Benzo(g,h,i)perylene 1 03/29/23 21:42 V31440JMV <2.00 µg/L 2.00 5.03Benzo(k)fluoranthene 1 03/29/23 21:42 V31440JMV <1.11 µg/L 1.11 10.1Benzoic Acid 1 03/29/23 21:42 V31440JMV <0.688 µg/L 0.688 5.03Benzyl alcohol 1 03/29/23 21:42 V31440JMV <0.470 µg/L 0.470 5.03Bis(2-Chloroethoxy)methane 1 03/29/23 21:42 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 24 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-2 91860 Matrix: 3/21/2023 15:25 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):V31295 03/28/23 09:04 <1.05 µg/L 1.05 5.03Bis(2-Chloroethyl)ether 1 03/29/23 21:42 V31440JMV <1.09 µg/L 1.09 5.03Bis(2-Chloroisopropyl)ether 1 03/29/23 21:42 V31440JMV <3.49 µg/L 3.49 10.1Bis(2-ethylhexyl)phthalate 1 03/29/23 21:42 V31440JMV <1.12 µg/L 1.12 5.034-Bromophenyl phenyl ether 1 03/29/23 21:42 V31440JMV <1.84 µg/L 1.84 5.03Butyl benzyl phthalate 1 03/29/23 21:42 V31440JMV <1.19 µg/L 1.19 5.034-Chloro-3-methylphenol 1 03/29/23 21:42 V31440JMV <7.42 µg/L 7.42 20.12-Chloronaphthalene 1 03/29/23 21:42 V31440JMV <0.947 µg/L 0.947 10.12-Chlorophenol 1 03/29/23 21:42 V31440JMV <1.72 µg/L 1.72 5.034-Chlorophenyl phenyl ether 1 03/29/23 21:42 V31440JMV <0.407 µg/L 0.407 2.01Chrysene 1 03/29/23 21:42 V31440JMV <0.436 µg/L 0.436 2.01Dibenz(a,h)anthracene 1 03/29/23 21:42 V31440JMV <0.861 µg/L 0.861 5.03Dibenzofuran 1 03/29/23 21:42 V31440JMV <2.01 µg/L 2.01 5.031,2-Dichlorobenzene 1 03/29/23 21:42 V31440JMV <2.01 µg/L 2.01 5.031,3-Dichlorobenzene 1 03/29/23 21:42 V31440JMV <2.06 µg/L 2.06 5.031,4-Dichlorobenzene 1 03/29/23 21:42 V31440JMV <1.90 µg/L 1.90 5.033,3'-Dichlorobenzidine 1 03/29/23 21:42 V31440JMV <1.47 µg/L 1.47 10.12,4-Dichlorophenol 1 03/29/23 21:42 V31440JMV <0.749 µg/L 0.749 5.03Diethyl phthalate 1 03/29/23 21:42 V31440JMV <0.944 µg/L 0.944 5.03Dimethyl phthalate 1 03/29/23 21:42 V31440JMV <1.58 µg/L 1.58 20.12,4-Dimethylphenol 1 03/29/23 21:42 V31440JMV <2.07 µg/L 2.07 5.03Di-n-butyl phthalate 1 03/29/23 21:42 V31440JMV <2.09 µg/L 2.09 10.14,6-Dinitro-2-methylphenol 1 03/29/23 21:42 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 25 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-2 91860 Matrix: 3/21/2023 15:25 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):V31295 03/28/23 09:04 <1.94 µg/L 1.94 10.12,4-Dinitrophenol 1 03/29/23 21:42 V31440JMV <1.12 µg/L 1.12 5.032,4-Dinitrotoluene 1 03/29/23 21:42 V31440JMV <0.813 µg/L 0.813 5.032,6-Dinitrotoluene 1 03/29/23 21:42 V31440JMV <1.66 µg/L 1.66 5.03Di-n-Octyl Phthalate 1 03/29/23 21:42 V31440JMV <0.251 µg/L 0.251 2.01Fluoranthene 1 03/29/23 21:42 V31440JMV <0.811 µg/L 0.811 2.01Fluorene 1 03/29/23 21:42 V31440JMV <0.984 µg/L 0.984 5.03Hexachlorobenzene 1 03/29/23 21:42 V31440JMV <2.75 µg/L 2.75 5.03Hexachlorobutadiene 1 03/29/23 21:42 V31440JMV <2.06 µg/L 2.06 5.03Hexachlorocyclopentadiene 1 03/29/23 21:42 V31440JMV <1.77 µg/L 1.77 5.03Hexachloroethane 1 03/29/23 21:42 V31440JMV <0.479 µg/L 0.479 2.01Indeno(1,2,3-cd)pyrene 1 03/29/23 21:42 V31440JMV <0.446 µg/L 0.446 5.03Isophorone 1 03/29/23 21:42 V31440JMV <1.15 µg/L 1.15 2.011-Methylnaphthalene 1 03/29/23 21:42 V31440JMV <0.669 µg/L 0.669 2.012-Methylnaphthalene 1 03/29/23 21:42 V31440JMV <0.731 µg/L 0.731 2.01Naphthalene 1 03/29/23 21:42 V31440JMV <0.910 µg/L 0.910 5.03Nitrobenzene 1 03/29/23 21:42 V31440JMV <0.495 µg/L 0.495 5.032-Nitrophenol 1 03/29/23 21:42 V31440JMV <1.24 µg/L 1.24 10.14-Nitrophenol 1 03/29/23 21:42 V31440JMV <1.11 µg/L 1.11 5.03N-Nitrosodiphenylamine 1 03/29/23 21:42 V31440JMV <0.644 µg/L 0.644 5.03N-Nitroso-di-n-propylamine 1 03/29/23 21:42 V31440JMV <1.44 µg/L 1.44 5.03Pentachlorophenol 1 03/29/23 21:42 V31440JMV <0.430 µg/L 0.430 2.01Phenanthrene 1 03/29/23 21:42 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 26 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-2 91860 Matrix: 3/21/2023 15:25 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):V31295 03/28/23 09:04 <0.654 µg/L 0.654 5.03Phenol 1 03/29/23 21:42 V31440JMV <0.436 µg/L 0.436 2.01Pyrene 1 03/29/23 21:42 V31440JMV <2.22 µg/L 2.22 5.031,2,4-Trichlorobenzene 1 03/29/23 21:42 V31440JMV <1.33 µg/L 1.33 5.032,4,6-Trichlorophenol 1 03/29/23 21:42 V31440JMV 625.1Surrogate: Phenol-d5 21.6 Limits: 10-63%03/29/23 21:421 JMV Surrogate: 2-Fluorobiphenyl 71.8 Limits: 49-118%03/29/23 21:421 JMV V31440 Surrogate: 2-Fluorophenol 34.9 Limits: 22-84%03/29/23 21:421 JMV V31440 Surrogate: Nitrobenzene-d5 64.4 Limits: 43-123%03/29/23 21:421 JMV V31440 Surrogate: 4-Terphenyl-d14 87.3 Limits: 49-151%03/29/23 21:421 JMV V31440 Surrogate: 2,4,6-Tribromophenol 53.4 Limits: 31-144%03/29/23 21:421 JMV V31440 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 27 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-2 91860 Matrix: 3/21/2023 15:25 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V31458 03/31/23 12:50 <28.2 µg/L 28.2 350Aliphatic C9-C18 1 04/03/23 15:20 V31552AMP <124 µg/L 124 500Aliphatic C19-C36 1 04/03/23 15:20 V31552AMP 61.2 J µg/L 61.2 250Aromatic C11-C22 1 04/03/23 15:20 V31552AMP MADEP-EPHSurrogate: 2-Bromonaphthalene I *Limits: 40-140%04/03/23 15:201 AMP MADEP-EPHSurrogate: Chlorooctadecane 68.4 Limits: 40-140%04/03/23 15:201 AMP MADEP-EPHSurrogate: OTP Surrogate 79.4 Limits: 40-140%04/03/23 15:201 AMP Surrogate: 2-Fluorobiphenyl 102 Limits: 40-140%04/03/23 15:201 AMP V31552 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V31197 03/24/23 08:00 <11.5 µg/L 11.5 50.0Aliphatic C5-C8 1 03/25/23 02:17 V31198TBL 34.6 J µg/L 25.8 50.0Aliphatic C9-C12 1 03/25/23 02:17 V31198TBL <4.02 µg/L 4.02 50.0Aromatic C9-C10 1 03/25/23 02:17 V31198TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)80.9 Limits: 70-130%03/25/23 02:171 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)75.4 Limits: 70-130%03/25/23 02:171 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 28 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-3 91861 Matrix: 3/21/2023 9:35 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <1.80 µg/L 1.80 10.0Acetone 1 03/30/23 23:39 V31449MSA <0.180 µg/L 0.180 0.500Benzene 1 03/30/23 23:39 V31449MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 03/30/23 23:39 V31449MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 03/30/23 23:39 V31449MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 03/30/23 23:39 V31449MSA <1.50 µg/L 1.50 5.00Bromoform 1 03/30/23 23:39 V31449MSA <0.280 µg/L 0.280 1.00Bromomethane 1 03/30/23 23:39 V31449MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 03/30/23 23:39 V31449MSA 1.21 µg/L 0.200 0.500sec-Butyl benzene 1 03/30/23 23:39 V31449MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 03/30/23 23:39 V31449MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 03/30/23 23:39 V31449MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 03/30/23 23:39 V31449MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 03/30/23 23:39 V31449MSA <0.430 µg/L 0.430 1.00Chloroethane 1 03/30/23 23:39 V31449MSA <0.220 µg/L 0.220 0.500Chloroform 1 03/30/23 23:39 V31449MSA <0.220 µg/L 0.220 0.500Chloromethane 1 03/30/23 23:39 V31449MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 03/30/23 23:39 V31449MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 03/30/23 23:39 V31449MSA 1.10 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 03/30/23 23:39 V31449MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 03/30/23 23:39 V31449MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 03/30/23 23:39 V31449MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 03/30/23 23:39 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 29 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-3 91861 Matrix: 3/21/2023 9:35 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 03/30/23 23:39 V31449MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 03/30/23 23:39 V31449MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 03/30/23 23:39 V31449MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 03/30/23 23:39 V31449MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 03/30/23 23:39 V31449MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 03/30/23 23:39 V31449MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 03/30/23 23:39 V31449MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 03/30/23 23:39 V31449MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 03/30/23 23:39 V31449MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 03/30/23 23:39 V31449MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 03/30/23 23:39 V31449MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 03/30/23 23:39 V31449MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 03/30/23 23:39 V31449MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 03/30/23 23:39 V31449MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 03/30/23 23:39 V31449MSA <42.0 µg/L 42.0 200Ethanol 1 03/30/23 23:39 V31449MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 03/30/23 23:39 V31449MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 03/30/23 23:39 V31449MSA <0.380 µg/L 0.380 1.002-Hexanone 1 03/30/23 23:39 V31449MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 03/30/23 23:39 V31449MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 03/30/23 23:39 V31449MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 03/30/23 23:39 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 30 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-3 91861 Matrix: 3/21/2023 9:35 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 03/30/23 23:39 V31449MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 03/30/23 23:39 V31449MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 03/30/23 23:39 V31449MSA <0.470 µg/L 0.470 1.00Naphthalene 1 03/30/23 23:39 V31449MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 03/30/23 23:39 V31449MSA <0.220 µg/L 0.220 0.500Styrene 1 03/30/23 23:39 V31449MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 03/30/23 23:39 V31449MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 03/30/23 23:39 V31449MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 03/30/23 23:39 V31449MSA <0.220 µg/L 0.220 0.500Toluene 1 03/30/23 23:39 V31449MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 03/30/23 23:39 V31449MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 03/30/23 23:39 V31449MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 03/30/23 23:39 V31449MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 03/30/23 23:39 V31449MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 03/30/23 23:39 V31449MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 03/30/23 23:39 V31449MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 03/30/23 23:39 V31449MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 03/30/23 23:39 V31449MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 03/30/23 23:39 V31449MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 03/30/23 23:39 V31449MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 03/30/23 23:39 V31449MSA <0.210 µg/L 0.210 0.500o-Xylene 1 03/30/23 23:39 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 31 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-3 91861 Matrix: 3/21/2023 9:35 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 03/30/23 23:39 V31449MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 03/30/23 23:39 V31449 Surrogate: 4-Bromofluorobenzene 99.6 Limits: 70-130%03/30/23 23:391 MSA V31449 Surrogate: Dibromofluoromethane 93.4 Limits: 70-130%03/30/23 23:391 MSA V31449 Surrogate: 1,2-Dichloroethane - d4 101 Limits: 70-130%03/30/23 23:391 MSA V31449 Surrogate: Toluene-d8 104 Limits: 70-130%03/30/23 23:391 MSA V31449 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V31217 03/27/23 11:43 0.562 J µg/L 0.303 2.01Acenaphthene 1 03/29/23 00:08 V31390ANG <0.298 µg/L 0.298 2.01Acenaphthylene 1 03/29/23 00:08 V31390ANG <0.840 µg/L 0.840 2.01Anthracene 1 03/29/23 00:08 V31390ANG <1.33 µg/L 1.33 10.1Benzidine 1 03/29/23 00:08 V31390ANG <0.640 µg/L 0.640 2.01Benzo(a)anthracene 1 03/29/23 00:08 V31390ANG <1.03 µg/L 1.03 2.01Benzo(a)pyrene 1 03/29/23 00:08 V31390ANG <2.50 µg/L 2.50 5.03Benzo(b)fluoranthene 1 03/29/23 00:08 V31390ANG <1.02 µg/L 1.02 5.03Benzo(g,h,i)perylene 1 03/29/23 00:08 V31390ANG <2.00 µg/L 2.00 5.03Benzo(k)fluoranthene 1 03/29/23 00:08 V31390ANG <1.11 µg/L 1.11 10.1Benzoic Acid 1 03/29/23 00:08 V31390ANG <0.688 µg/L 0.688 5.03Benzyl alcohol 1 03/29/23 00:08 V31390ANG <0.470 µg/L 0.470 5.03Bis(2-Chloroethoxy)methane 1 03/29/23 00:08 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 32 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-3 91861 Matrix: 3/21/2023 9:35 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):V31217 03/27/23 11:43 <1.05 µg/L 1.05 5.03Bis(2-Chloroethyl)ether 1 03/29/23 00:08 V31390ANG <1.09 µg/L 1.09 5.03Bis(2-Chloroisopropyl)ether 1 03/29/23 00:08 V31390ANG <3.49 µg/L 3.49 10.1Bis(2-ethylhexyl)phthalate 1 03/29/23 00:08 V31390ANG <1.12 µg/L 1.12 5.034-Bromophenyl phenyl ether 1 03/29/23 00:08 V31390ANG <1.84 µg/L 1.84 5.03Butyl benzyl phthalate 1 03/29/23 00:08 V31390ANG <1.19 µg/L 1.19 5.034-Chloro-3-methylphenol 1 03/29/23 00:08 V31390ANG <7.42 M µg/L 7.42 20.12-Chloronaphthalene 1 03/29/23 00:08 V31390ANG <0.947 µg/L 0.947 10.12-Chlorophenol 1 03/29/23 00:08 V31390ANG <1.72 µg/L 1.72 5.034-Chlorophenyl phenyl ether 1 03/29/23 00:08 V31390ANG <0.407 µg/L 0.407 2.01Chrysene 1 03/29/23 00:08 V31390ANG <0.436 µg/L 0.436 2.01Dibenz(a,h)anthracene 1 03/29/23 00:08 V31390ANG <0.861 µg/L 0.861 5.03Dibenzofuran 1 03/29/23 00:08 V31390ANG <2.01 µg/L 2.01 5.031,2-Dichlorobenzene 1 03/29/23 00:08 V31390ANG <2.01 µg/L 2.01 5.031,3-Dichlorobenzene 1 03/29/23 00:08 V31390ANG <2.06 µg/L 2.06 5.031,4-Dichlorobenzene 1 03/29/23 00:08 V31390ANG <1.90 µg/L 1.90 5.033,3'-Dichlorobenzidine 1 03/29/23 00:08 V31390ANG <1.47 µg/L 1.47 10.12,4-Dichlorophenol 1 03/29/23 00:08 V31390ANG <0.749 µg/L 0.749 5.03Diethyl phthalate 1 03/29/23 00:08 V31390ANG <0.944 µg/L 0.944 5.03Dimethyl phthalate 1 03/29/23 00:08 V31390ANG <1.58 µg/L 1.58 20.12,4-Dimethylphenol 1 03/29/23 00:08 V31390ANG <2.07 µg/L 2.07 5.03Di-n-butyl phthalate 1 03/29/23 00:08 V31390ANG <2.09 µg/L 2.09 10.14,6-Dinitro-2-methylphenol 1 03/29/23 00:08 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 33 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-3 91861 Matrix: 3/21/2023 9:35 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):V31217 03/27/23 11:43 <1.94 µg/L 1.94 10.12,4-Dinitrophenol 1 03/29/23 00:08 V31390ANG <1.12 µg/L 1.12 5.032,4-Dinitrotoluene 1 03/29/23 00:08 V31390ANG <0.813 µg/L 0.813 5.032,6-Dinitrotoluene 1 03/29/23 00:08 V31390ANG <1.66 µg/L 1.66 5.03Di-n-Octyl Phthalate 1 03/29/23 00:08 V31390ANG <0.251 µg/L 0.251 2.01Fluoranthene 1 03/29/23 00:08 V31390ANG 0.921 J µg/L 0.811 2.01Fluorene 1 03/29/23 00:08 V31390ANG <0.984 µg/L 0.984 5.03Hexachlorobenzene 1 03/29/23 00:08 V31390ANG <2.75 µg/L 2.75 5.03Hexachlorobutadiene 1 03/29/23 00:08 V31390ANG <2.06 µg/L 2.06 5.03Hexachlorocyclopentadiene 1 03/29/23 00:08 V31390ANG <1.77 M µg/L 1.77 5.03Hexachloroethane 1 03/29/23 00:08 V31390ANG <0.479 µg/L 0.479 2.01Indeno(1,2,3-cd)pyrene 1 03/29/23 00:08 V31390ANG <0.446 µg/L 0.446 5.03Isophorone 1 03/29/23 00:08 V31390ANG <1.15 µg/L 1.15 2.011-Methylnaphthalene 1 03/29/23 00:08 V31390ANG <0.669 µg/L 0.669 2.012-Methylnaphthalene 1 03/29/23 00:08 V31390ANG <0.731 µg/L 0.731 2.01Naphthalene 1 03/29/23 00:08 V31390ANG <0.910 µg/L 0.910 5.03Nitrobenzene 1 03/29/23 00:08 V31390ANG <0.495 µg/L 0.495 5.032-Nitrophenol 1 03/29/23 00:08 V31390ANG <1.24 µg/L 1.24 10.14-Nitrophenol 1 03/29/23 00:08 V31390ANG <1.11 µg/L 1.11 5.03N-Nitrosodiphenylamine 1 03/29/23 00:08 V31390ANG <0.644 µg/L 0.644 5.03N-Nitroso-di-n-propylamine 1 03/29/23 00:08 V31390ANG <1.44 µg/L 1.44 5.03Pentachlorophenol 1 03/29/23 00:08 V31390ANG <0.430 µg/L 0.430 2.01Phenanthrene 1 03/29/23 00:08 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 34 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-3 91861 Matrix: 3/21/2023 9:35 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):V31217 03/27/23 11:43 <0.654 µg/L 0.654 5.03Phenol 1 03/29/23 00:08 V31390ANG <0.436 µg/L 0.436 2.01Pyrene 1 03/29/23 00:08 V31390ANG <2.22 M µg/L 2.22 5.031,2,4-Trichlorobenzene 1 03/29/23 00:08 V31390ANG <1.33 µg/L 1.33 5.032,4,6-Trichlorophenol 1 03/29/23 00:08 V31390ANG 625.1Surrogate: Phenol-d5 26.3 Limits: 10-63%03/29/23 00:081 ANG Surrogate: 2-Fluorobiphenyl 84.3 Limits: 49-118%03/29/23 00:081 ANG V31390 Surrogate: 2-Fluorophenol 39.1 Limits: 22-84%03/29/23 00:081 ANG V31390 Surrogate: Nitrobenzene-d5 72.0 Limits: 43-123%03/29/23 00:081 ANG V31390 Surrogate: 4-Terphenyl-d14 99.0 Limits: 49-151%03/29/23 00:081 ANG V31390 Surrogate: 2,4,6-Tribromophenol 64.3 Limits: 31-144%03/29/23 00:081 ANG V31390 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 35 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-4 91862 Matrix: 3/20/2023 16:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <1.80 µg/L 1.80 10.0Acetone 1 03/31/23 00:06 V31449MSA <0.180 µg/L 0.180 0.500Benzene 1 03/31/23 00:06 V31449MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 03/31/23 00:06 V31449MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 03/31/23 00:06 V31449MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 03/31/23 00:06 V31449MSA <1.50 µg/L 1.50 5.00Bromoform 1 03/31/23 00:06 V31449MSA <0.280 µg/L 0.280 1.00Bromomethane 1 03/31/23 00:06 V31449MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 03/31/23 00:06 V31449MSA 0.428 J µg/L 0.200 0.500sec-Butyl benzene 1 03/31/23 00:06 V31449MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 03/31/23 00:06 V31449MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 03/31/23 00:06 V31449MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 03/31/23 00:06 V31449MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 03/31/23 00:06 V31449MSA <0.430 µg/L 0.430 1.00Chloroethane 1 03/31/23 00:06 V31449MSA <0.220 µg/L 0.220 0.500Chloroform 1 03/31/23 00:06 V31449MSA <0.220 µg/L 0.220 0.500Chloromethane 1 03/31/23 00:06 V31449MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 03/31/23 00:06 V31449MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 03/31/23 00:06 V31449MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 03/31/23 00:06 V31449MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 03/31/23 00:06 V31449MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 03/31/23 00:06 V31449MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 03/31/23 00:06 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 36 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-4 91862 Matrix: 3/20/2023 16:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 03/31/23 00:06 V31449MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 03/31/23 00:06 V31449MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 03/31/23 00:06 V31449MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 03/31/23 00:06 V31449MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 03/31/23 00:06 V31449MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 03/31/23 00:06 V31449MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 03/31/23 00:06 V31449MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 03/31/23 00:06 V31449MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 03/31/23 00:06 V31449MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 03/31/23 00:06 V31449MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 03/31/23 00:06 V31449MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 03/31/23 00:06 V31449MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 03/31/23 00:06 V31449MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 03/31/23 00:06 V31449MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 03/31/23 00:06 V31449MSA <42.0 µg/L 42.0 200Ethanol 1 03/31/23 00:06 V31449MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 03/31/23 00:06 V31449MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 03/31/23 00:06 V31449MSA <0.380 µg/L 0.380 1.002-Hexanone 1 03/31/23 00:06 V31449MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 03/31/23 00:06 V31449MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 03/31/23 00:06 V31449MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 03/31/23 00:06 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 37 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-4 91862 Matrix: 3/20/2023 16:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 03/31/23 00:06 V31449MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 03/31/23 00:06 V31449MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 03/31/23 00:06 V31449MSA <0.470 µg/L 0.470 1.00Naphthalene 1 03/31/23 00:06 V31449MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 03/31/23 00:06 V31449MSA <0.220 µg/L 0.220 0.500Styrene 1 03/31/23 00:06 V31449MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 03/31/23 00:06 V31449MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 03/31/23 00:06 V31449MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 03/31/23 00:06 V31449MSA <0.220 µg/L 0.220 0.500Toluene 1 03/31/23 00:06 V31449MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 03/31/23 00:06 V31449MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 03/31/23 00:06 V31449MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 03/31/23 00:06 V31449MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 03/31/23 00:06 V31449MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 03/31/23 00:06 V31449MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 03/31/23 00:06 V31449MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 03/31/23 00:06 V31449MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 03/31/23 00:06 V31449MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 03/31/23 00:06 V31449MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 03/31/23 00:06 V31449MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 03/31/23 00:06 V31449MSA <0.210 µg/L 0.210 0.500o-Xylene 1 03/31/23 00:06 V31449MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 38 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-4 91862 Matrix: 3/20/2023 16:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31446 03/30/23 09:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 03/31/23 00:06 V31449MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 03/31/23 00:06 V31449 Surrogate: 4-Bromofluorobenzene 117 Limits: 70-130%03/31/23 00:061 MSA V31449 Surrogate: Dibromofluoromethane 106 Limits: 70-130%03/31/23 00:061 MSA V31449 Surrogate: 1,2-Dichloroethane - d4 115 Limits: 70-130%03/31/23 00:061 MSA V31449 Surrogate: Toluene-d8 98.4 Limits: 70-130%03/31/23 00:061 MSA V31449 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V31217 03/27/23 11:43 0.602 J µg/L 0.303 2.01Acenaphthene 1 03/28/23 23:44 V31390ANG <0.298 µg/L 0.298 2.01Acenaphthylene 1 03/28/23 23:44 V31390ANG <0.840 µg/L 0.840 2.01Anthracene 1 03/28/23 23:44 V31390ANG <1.33 µg/L 1.33 10.1Benzidine 1 03/28/23 23:44 V31390ANG <0.640 µg/L 0.640 2.01Benzo(a)anthracene 1 03/28/23 23:44 V31390ANG <1.03 µg/L 1.03 2.01Benzo(a)pyrene 1 03/28/23 23:44 V31390ANG <2.50 µg/L 2.50 5.03Benzo(b)fluoranthene 1 03/28/23 23:44 V31390ANG <1.02 µg/L 1.02 5.03Benzo(g,h,i)perylene 1 03/28/23 23:44 V31390ANG <2.00 µg/L 2.00 5.03Benzo(k)fluoranthene 1 03/28/23 23:44 V31390ANG <1.11 µg/L 1.11 10.1Benzoic Acid 1 03/28/23 23:44 V31390ANG <0.688 µg/L 0.688 5.03Benzyl alcohol 1 03/28/23 23:44 V31390ANG <0.470 µg/L 0.470 5.03Bis(2-Chloroethoxy)methane 1 03/28/23 23:44 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 39 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-4 91862 Matrix: 3/20/2023 16:10 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):V31217 03/27/23 11:43 <1.05 µg/L 1.05 5.03Bis(2-Chloroethyl)ether 1 03/28/23 23:44 V31390ANG <1.09 µg/L 1.09 5.03Bis(2-Chloroisopropyl)ether 1 03/28/23 23:44 V31390ANG <3.49 µg/L 3.49 10.1Bis(2-ethylhexyl)phthalate 1 03/28/23 23:44 V31390ANG <1.12 µg/L 1.12 5.034-Bromophenyl phenyl ether 1 03/28/23 23:44 V31390ANG <1.84 µg/L 1.84 5.03Butyl benzyl phthalate 1 03/28/23 23:44 V31390ANG <1.19 µg/L 1.19 5.034-Chloro-3-methylphenol 1 03/28/23 23:44 V31390ANG <7.42 M µg/L 7.42 20.12-Chloronaphthalene 1 03/28/23 23:44 V31390ANG <0.947 µg/L 0.947 10.12-Chlorophenol 1 03/28/23 23:44 V31390ANG <1.72 µg/L 1.72 5.034-Chlorophenyl phenyl ether 1 03/28/23 23:44 V31390ANG <0.407 µg/L 0.407 2.01Chrysene 1 03/28/23 23:44 V31390ANG <0.436 µg/L 0.436 2.01Dibenz(a,h)anthracene 1 03/28/23 23:44 V31390ANG <0.861 µg/L 0.861 5.03Dibenzofuran 1 03/28/23 23:44 V31390ANG <2.01 µg/L 2.01 5.031,2-Dichlorobenzene 1 03/28/23 23:44 V31390ANG <2.01 µg/L 2.01 5.031,3-Dichlorobenzene 1 03/28/23 23:44 V31390ANG <2.06 µg/L 2.06 5.031,4-Dichlorobenzene 1 03/28/23 23:44 V31390ANG <1.90 µg/L 1.90 5.033,3'-Dichlorobenzidine 1 03/28/23 23:44 V31390ANG <1.47 µg/L 1.47 10.12,4-Dichlorophenol 1 03/28/23 23:44 V31390ANG <0.749 µg/L 0.749 5.03Diethyl phthalate 1 03/28/23 23:44 V31390ANG <0.944 µg/L 0.944 5.03Dimethyl phthalate 1 03/28/23 23:44 V31390ANG <1.58 µg/L 1.58 20.12,4-Dimethylphenol 1 03/28/23 23:44 V31390ANG <2.07 µg/L 2.07 5.03Di-n-butyl phthalate 1 03/28/23 23:44 V31390ANG <2.09 µg/L 2.09 10.14,6-Dinitro-2-methylphenol 1 03/28/23 23:44 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 40 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-4 91862 Matrix: 3/20/2023 16:10 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):V31217 03/27/23 11:43 <1.94 µg/L 1.94 10.12,4-Dinitrophenol 1 03/28/23 23:44 V31390ANG <1.12 µg/L 1.12 5.032,4-Dinitrotoluene 1 03/28/23 23:44 V31390ANG <0.813 µg/L 0.813 5.032,6-Dinitrotoluene 1 03/28/23 23:44 V31390ANG <1.66 µg/L 1.66 5.03Di-n-Octyl Phthalate 1 03/28/23 23:44 V31390ANG <0.251 µg/L 0.251 2.01Fluoranthene 1 03/28/23 23:44 V31390ANG <0.811 µg/L 0.811 2.01Fluorene 1 03/28/23 23:44 V31390ANG <0.984 µg/L 0.984 5.03Hexachlorobenzene 1 03/28/23 23:44 V31390ANG <2.75 µg/L 2.75 5.03Hexachlorobutadiene 1 03/28/23 23:44 V31390ANG <2.06 µg/L 2.06 5.03Hexachlorocyclopentadiene 1 03/28/23 23:44 V31390ANG <1.77 M µg/L 1.77 5.03Hexachloroethane 1 03/28/23 23:44 V31390ANG <0.479 µg/L 0.479 2.01Indeno(1,2,3-cd)pyrene 1 03/28/23 23:44 V31390ANG <0.446 µg/L 0.446 5.03Isophorone 1 03/28/23 23:44 V31390ANG <1.15 µg/L 1.15 2.011-Methylnaphthalene 1 03/28/23 23:44 V31390ANG <0.669 µg/L 0.669 2.012-Methylnaphthalene 1 03/28/23 23:44 V31390ANG <0.731 µg/L 0.731 2.01Naphthalene 1 03/28/23 23:44 V31390ANG <0.910 µg/L 0.910 5.03Nitrobenzene 1 03/28/23 23:44 V31390ANG <0.495 µg/L 0.495 5.032-Nitrophenol 1 03/28/23 23:44 V31390ANG <1.24 µg/L 1.24 10.14-Nitrophenol 1 03/28/23 23:44 V31390ANG <1.11 µg/L 1.11 5.03N-Nitrosodiphenylamine 1 03/28/23 23:44 V31390ANG <0.644 µg/L 0.644 5.03N-Nitroso-di-n-propylamine 1 03/28/23 23:44 V31390ANG <1.44 µg/L 1.44 5.03Pentachlorophenol 1 03/28/23 23:44 V31390ANG <0.430 µg/L 0.430 2.01Phenanthrene 1 03/28/23 23:44 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 41 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-4 91862 Matrix: 3/20/2023 16:10 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):V31217 03/27/23 11:43 <0.654 µg/L 0.654 5.03Phenol 1 03/28/23 23:44 V31390ANG <0.436 µg/L 0.436 2.01Pyrene 1 03/28/23 23:44 V31390ANG <2.22 M µg/L 2.22 5.031,2,4-Trichlorobenzene 1 03/28/23 23:44 V31390ANG <1.33 µg/L 1.33 5.032,4,6-Trichlorophenol 1 03/28/23 23:44 V31390ANG 625.1Surrogate: Phenol-d5 23.6 Limits: 10-63%03/28/23 23:441 ANG Surrogate: 2-Fluorobiphenyl 76.3 Limits: 49-118%03/28/23 23:441 ANG V31390 Surrogate: 2-Fluorophenol 37.6 Limits: 22-84%03/28/23 23:441 ANG V31390 Surrogate: Nitrobenzene-d5 66.2 Limits: 43-123%03/28/23 23:441 ANG V31390 Surrogate: 4-Terphenyl-d14 88.3 Limits: 49-151%03/28/23 23:441 ANG V31390 Surrogate: 2,4,6-Tribromophenol 61.5 Limits: 31-144%03/28/23 23:441 ANG V31390 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 42 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-4 91862 Matrix: 3/20/2023 16:10 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V31458 03/31/23 12:50 29.3 J µg/L 28.2 350Aliphatic C9-C18 1 04/03/23 15:56 V31552AMP <124 µg/L 124 500Aliphatic C19-C36 1 04/03/23 15:56 V31552AMP 139 J µg/L 61.2 250Aromatic C11-C22 1 04/03/23 15:56 V31552AMP MADEP-EPHSurrogate: 2-Bromonaphthalene I *Limits: 40-140%04/03/23 15:561 AMP MADEP-EPHSurrogate: Chlorooctadecane 68.0 Limits: 40-140%04/03/23 15:561 AMP MADEP-EPHSurrogate: OTP Surrogate 73.0 Limits: 40-140%04/03/23 15:561 AMP Surrogate: 2-Fluorobiphenyl 102 Limits: 40-140%04/03/23 15:561 AMP V31552 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V31197 03/24/23 08:00 41.8 J µg/L 11.5 50.0Aliphatic C5-C8 1 03/25/23 12:31 V31198TBL 47.4 J µg/L 25.8 50.0Aliphatic C9-C12 1 03/25/23 12:31 V31198TBL 9.91 J µg/L 4.02 50.0Aromatic C9-C10 1 03/25/23 12:31 V31198TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)82.6 Limits: 70-130%03/25/23 12:311 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)82.1 Limits: 70-130%03/25/23 12:311 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 43 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-5 91863 Matrix: 3/20/2023 15:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31533 03/31/23 09:00 <1.80 µg/L 1.80 10.0Acetone 1 03/31/23 15:21 V31534MSA <0.180 µg/L 0.180 0.500Benzene 1 03/31/23 15:21 V31534MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 03/31/23 15:21 V31534MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 03/31/23 15:21 V31534MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 03/31/23 15:21 V31534MSA <1.50 µg/L 1.50 5.00Bromoform 1 03/31/23 15:21 V31534MSA <0.280 µg/L 0.280 1.00Bromomethane 1 03/31/23 15:21 V31534MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 03/31/23 15:21 V31534MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 03/31/23 15:21 V31534MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 03/31/23 15:21 V31534MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 03/31/23 15:21 V31534MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 03/31/23 15:21 V31534MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 03/31/23 15:21 V31534MSA <0.430 µg/L 0.430 1.00Chloroethane 1 03/31/23 15:21 V31534MSA <0.220 µg/L 0.220 0.500Chloroform 1 03/31/23 15:21 V31534MSA <0.220 µg/L 0.220 0.500Chloromethane 1 03/31/23 15:21 V31534MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 03/31/23 15:21 V31534MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 03/31/23 15:21 V31534MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 03/31/23 15:21 V31534MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 03/31/23 15:21 V31534MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 03/31/23 15:21 V31534MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 03/31/23 15:21 V31534MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 44 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-5 91863 Matrix: 3/20/2023 15:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31533 03/31/23 09:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 03/31/23 15:21 V31534MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 03/31/23 15:21 V31534MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 03/31/23 15:21 V31534MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 03/31/23 15:21 V31534MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 03/31/23 15:21 V31534MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 03/31/23 15:21 V31534MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 03/31/23 15:21 V31534MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 03/31/23 15:21 V31534MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 03/31/23 15:21 V31534MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 03/31/23 15:21 V31534MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 03/31/23 15:21 V31534MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 03/31/23 15:21 V31534MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 03/31/23 15:21 V31534MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 03/31/23 15:21 V31534MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 03/31/23 15:21 V31534MSA <42.0 µg/L 42.0 200Ethanol 1 03/31/23 15:21 V31534MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 03/31/23 15:21 V31534MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 03/31/23 15:21 V31534MSA <0.380 µg/L 0.380 1.002-Hexanone 1 03/31/23 15:21 V31534MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 03/31/23 15:21 V31534MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 03/31/23 15:21 V31534MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 03/31/23 15:21 V31534MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 45 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-5 91863 Matrix: 3/20/2023 15:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31533 03/31/23 09:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 03/31/23 15:21 V31534MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 03/31/23 15:21 V31534MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 03/31/23 15:21 V31534MSA <0.470 µg/L 0.470 1.00Naphthalene 1 03/31/23 15:21 V31534MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 03/31/23 15:21 V31534MSA <0.220 µg/L 0.220 0.500Styrene 1 03/31/23 15:21 V31534MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 03/31/23 15:21 V31534MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 03/31/23 15:21 V31534MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 03/31/23 15:21 V31534MSA <0.220 µg/L 0.220 0.500Toluene 1 03/31/23 15:21 V31534MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 03/31/23 15:21 V31534MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 03/31/23 15:21 V31534MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 03/31/23 15:21 V31534MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 03/31/23 15:21 V31534MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 03/31/23 15:21 V31534MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 03/31/23 15:21 V31534MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 03/31/23 15:21 V31534MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 03/31/23 15:21 V31534MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 03/31/23 15:21 V31534MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 03/31/23 15:21 V31534MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 03/31/23 15:21 V31534MSA <0.210 µg/L 0.210 0.500o-Xylene 1 03/31/23 15:21 V31534MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 46 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-5 91863 Matrix: 3/20/2023 15:05 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31533 03/31/23 09:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 03/31/23 15:21 V31534MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 03/31/23 15:21 V31534 Surrogate: 4-Bromofluorobenzene 116 Limits: 70-130%03/31/23 15:211 MSA V31534 Surrogate: Dibromofluoromethane 105 Limits: 70-130%03/31/23 15:211 MSA V31534 Surrogate: 1,2-Dichloroethane - d4 117 Limits: 70-130%03/31/23 15:211 MSA V31534 Surrogate: Toluene-d8 97.4 Limits: 70-130%03/31/23 15:211 MSA V31534 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V31217 03/27/23 11:43 <0.303 µg/L 0.303 2.01Acenaphthene 1 03/28/23 23:21 V31390ANG <0.298 µg/L 0.298 2.01Acenaphthylene 1 03/28/23 23:21 V31390ANG <0.840 µg/L 0.840 2.01Anthracene 1 03/28/23 23:21 V31390ANG <1.33 µg/L 1.33 10.1Benzidine 1 03/28/23 23:21 V31390ANG <0.640 µg/L 0.640 2.01Benzo(a)anthracene 1 03/28/23 23:21 V31390ANG <1.03 µg/L 1.03 2.01Benzo(a)pyrene 1 03/28/23 23:21 V31390ANG <2.50 µg/L 2.50 5.03Benzo(b)fluoranthene 1 03/28/23 23:21 V31390ANG <1.02 µg/L 1.02 5.03Benzo(g,h,i)perylene 1 03/28/23 23:21 V31390ANG <2.00 µg/L 2.00 5.03Benzo(k)fluoranthene 1 03/28/23 23:21 V31390ANG <1.11 µg/L 1.11 10.1Benzoic Acid 1 03/28/23 23:21 V31390ANG <0.688 µg/L 0.688 5.03Benzyl alcohol 1 03/28/23 23:21 V31390ANG <0.470 µg/L 0.470 5.03Bis(2-Chloroethoxy)methane 1 03/28/23 23:21 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 47 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-5 91863 Matrix: 3/20/2023 15:05 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):V31217 03/27/23 11:43 <1.05 µg/L 1.05 5.03Bis(2-Chloroethyl)ether 1 03/28/23 23:21 V31390ANG <1.09 µg/L 1.09 5.03Bis(2-Chloroisopropyl)ether 1 03/28/23 23:21 V31390ANG <3.49 µg/L 3.49 10.1Bis(2-ethylhexyl)phthalate 1 03/28/23 23:21 V31390ANG <1.12 µg/L 1.12 5.034-Bromophenyl phenyl ether 1 03/28/23 23:21 V31390ANG <1.84 µg/L 1.84 5.03Butyl benzyl phthalate 1 03/28/23 23:21 V31390ANG <1.19 µg/L 1.19 5.034-Chloro-3-methylphenol 1 03/28/23 23:21 V31390ANG <7.42 M µg/L 7.42 20.12-Chloronaphthalene 1 03/28/23 23:21 V31390ANG <0.947 µg/L 0.947 10.12-Chlorophenol 1 03/28/23 23:21 V31390ANG <1.72 µg/L 1.72 5.034-Chlorophenyl phenyl ether 1 03/28/23 23:21 V31390ANG <0.407 µg/L 0.407 2.01Chrysene 1 03/28/23 23:21 V31390ANG <0.436 µg/L 0.436 2.01Dibenz(a,h)anthracene 1 03/28/23 23:21 V31390ANG <0.861 µg/L 0.861 5.03Dibenzofuran 1 03/28/23 23:21 V31390ANG <2.01 µg/L 2.01 5.031,2-Dichlorobenzene 1 03/28/23 23:21 V31390ANG <2.01 µg/L 2.01 5.031,3-Dichlorobenzene 1 03/28/23 23:21 V31390ANG <2.06 µg/L 2.06 5.031,4-Dichlorobenzene 1 03/28/23 23:21 V31390ANG <1.90 µg/L 1.90 5.033,3'-Dichlorobenzidine 1 03/28/23 23:21 V31390ANG <1.47 µg/L 1.47 10.12,4-Dichlorophenol 1 03/28/23 23:21 V31390ANG <0.749 µg/L 0.749 5.03Diethyl phthalate 1 03/28/23 23:21 V31390ANG <0.944 µg/L 0.944 5.03Dimethyl phthalate 1 03/28/23 23:21 V31390ANG <1.58 µg/L 1.58 20.12,4-Dimethylphenol 1 03/28/23 23:21 V31390ANG <2.07 µg/L 2.07 5.03Di-n-butyl phthalate 1 03/28/23 23:21 V31390ANG <2.09 µg/L 2.09 10.14,6-Dinitro-2-methylphenol 1 03/28/23 23:21 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 48 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-5 91863 Matrix: 3/20/2023 15:05 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):V31217 03/27/23 11:43 <1.94 µg/L 1.94 10.12,4-Dinitrophenol 1 03/28/23 23:21 V31390ANG <1.12 µg/L 1.12 5.032,4-Dinitrotoluene 1 03/28/23 23:21 V31390ANG <0.813 µg/L 0.813 5.032,6-Dinitrotoluene 1 03/28/23 23:21 V31390ANG <1.66 µg/L 1.66 5.03Di-n-Octyl Phthalate 1 03/28/23 23:21 V31390ANG <0.251 µg/L 0.251 2.01Fluoranthene 1 03/28/23 23:21 V31390ANG <0.811 µg/L 0.811 2.01Fluorene 1 03/28/23 23:21 V31390ANG <0.984 µg/L 0.984 5.03Hexachlorobenzene 1 03/28/23 23:21 V31390ANG <2.75 µg/L 2.75 5.03Hexachlorobutadiene 1 03/28/23 23:21 V31390ANG <2.06 µg/L 2.06 5.03Hexachlorocyclopentadiene 1 03/28/23 23:21 V31390ANG <1.77 M µg/L 1.77 5.03Hexachloroethane 1 03/28/23 23:21 V31390ANG <0.479 µg/L 0.479 2.01Indeno(1,2,3-cd)pyrene 1 03/28/23 23:21 V31390ANG <0.446 µg/L 0.446 5.03Isophorone 1 03/28/23 23:21 V31390ANG <1.15 µg/L 1.15 2.011-Methylnaphthalene 1 03/28/23 23:21 V31390ANG <0.669 µg/L 0.669 2.012-Methylnaphthalene 1 03/28/23 23:21 V31390ANG <0.731 µg/L 0.731 2.01Naphthalene 1 03/28/23 23:21 V31390ANG <0.910 µg/L 0.910 5.03Nitrobenzene 1 03/28/23 23:21 V31390ANG <0.495 µg/L 0.495 5.032-Nitrophenol 1 03/28/23 23:21 V31390ANG <1.24 µg/L 1.24 10.14-Nitrophenol 1 03/28/23 23:21 V31390ANG <1.11 µg/L 1.11 5.03N-Nitrosodiphenylamine 1 03/28/23 23:21 V31390ANG <0.644 µg/L 0.644 5.03N-Nitroso-di-n-propylamine 1 03/28/23 23:21 V31390ANG <1.44 µg/L 1.44 5.03Pentachlorophenol 1 03/28/23 23:21 V31390ANG <0.430 µg/L 0.430 2.01Phenanthrene 1 03/28/23 23:21 V31390ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 49 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:MW-5 91863 Matrix: 3/20/2023 15:05 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):V31217 03/27/23 11:43 <0.654 µg/L 0.654 5.03Phenol 1 03/28/23 23:21 V31390ANG <0.436 µg/L 0.436 2.01Pyrene 1 03/28/23 23:21 V31390ANG <2.22 M µg/L 2.22 5.031,2,4-Trichlorobenzene 1 03/28/23 23:21 V31390ANG <1.33 µg/L 1.33 5.032,4,6-Trichlorophenol 1 03/28/23 23:21 V31390ANG 625.1Surrogate: Phenol-d5 23.7 Limits: 10-63%03/28/23 23:211 ANG Surrogate: 2-Fluorobiphenyl 77.7 Limits: 49-118%03/28/23 23:211 ANG V31390 Surrogate: 2-Fluorophenol 34.1 Limits: 22-84%03/28/23 23:211 ANG V31390 Surrogate: Nitrobenzene-d5 65.6 Limits: 43-123%03/28/23 23:211 ANG V31390 Surrogate: 4-Terphenyl-d14 96.6 Limits: 49-151%03/28/23 23:211 ANG V31390 Surrogate: 2,4,6-Tribromophenol 64.7 Limits: 31-144%03/28/23 23:211 ANG V31390 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 50 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:DW-1 91864 Matrix: 3/21/2023 10:35 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31596 04/03/23 09:00 <1.80 µg/L 1.80 10.0Acetone 1 04/03/23 14:40 V31598MSA <0.180 µg/L 0.180 0.500Benzene 1 04/03/23 14:40 V31598MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 04/03/23 14:40 V31598MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 04/03/23 14:40 V31598MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 04/03/23 14:40 V31598MSA <1.50 µg/L 1.50 5.00Bromoform 1 04/03/23 14:40 V31598MSA <0.280 µg/L 0.280 1.00Bromomethane 1 04/03/23 14:40 V31598MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 04/03/23 14:40 V31598MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 04/03/23 14:40 V31598MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 04/03/23 14:40 V31598MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 04/03/23 14:40 V31598MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 04/03/23 14:40 V31598MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 04/03/23 14:40 V31598MSA <0.430 µg/L 0.430 1.00Chloroethane 1 04/03/23 14:40 V31598MSA <0.220 µg/L 0.220 0.500Chloroform 1 04/03/23 14:40 V31598MSA <0.220 µg/L 0.220 0.500Chloromethane 1 04/03/23 14:40 V31598MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 04/03/23 14:40 V31598MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 04/03/23 14:40 V31598MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 04/03/23 14:40 V31598MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 04/03/23 14:40 V31598MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 04/03/23 14:40 V31598MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 04/03/23 14:40 V31598MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 51 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:DW-1 91864 Matrix: 3/21/2023 10:35 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31596 04/03/23 09:00 <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 04/03/23 14:40 V31598MSA <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 04/03/23 14:40 V31598MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 04/03/23 14:40 V31598MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 04/03/23 14:40 V31598MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 04/03/23 14:40 V31598MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 04/03/23 14:40 V31598MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 04/03/23 14:40 V31598MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 04/03/23 14:40 V31598MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 04/03/23 14:40 V31598MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 04/03/23 14:40 V31598MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 04/03/23 14:40 V31598MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 04/03/23 14:40 V31598MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 04/03/23 14:40 V31598MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 04/03/23 14:40 V31598MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 04/03/23 14:40 V31598MSA <42.0 µg/L 42.0 200Ethanol 1 04/03/23 14:40 V31598MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 04/03/23 14:40 V31598MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 04/03/23 14:40 V31598MSA <0.380 µg/L 0.380 1.002-Hexanone 1 04/03/23 14:40 V31598MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 04/03/23 14:40 V31598MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 04/03/23 14:40 V31598MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 04/03/23 14:40 V31598MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 52 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:DW-1 91864 Matrix: 3/21/2023 10:35 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31596 04/03/23 09:00 <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 04/03/23 14:40 V31598MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 04/03/23 14:40 V31598MSA <0.330 µg/L 0.330 2.00Methylene Chloride 1 04/03/23 14:40 V31598MSA <0.470 µg/L 0.470 1.00Naphthalene 1 04/03/23 14:40 V31598MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 04/03/23 14:40 V31598MSA <0.220 µg/L 0.220 0.500Styrene 1 04/03/23 14:40 V31598MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 04/03/23 14:40 V31598MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 04/03/23 14:40 V31598MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 04/03/23 14:40 V31598MSA <0.220 µg/L 0.220 0.500Toluene 1 04/03/23 14:40 V31598MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 04/03/23 14:40 V31598MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 04/03/23 14:40 V31598MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 04/03/23 14:40 V31598MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 04/03/23 14:40 V31598MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 04/03/23 14:40 V31598MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 04/03/23 14:40 V31598MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 04/03/23 14:40 V31598MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 04/03/23 14:40 V31598MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 04/03/23 14:40 V31598MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 04/03/23 14:40 V31598MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 04/03/23 14:40 V31598MSA <0.210 µg/L 0.210 0.500o-Xylene 1 04/03/23 14:40 V31598MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 53 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:DW-1 91864 Matrix: 3/21/2023 10:35 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31596 04/03/23 09:00 <0.420 µg/L 0.420 1.00m,p-Xylene 1 04/03/23 14:40 V31598MSA <0.21 µg/L 0.210 0.500Xylene (Total)1 04/03/23 14:40 V31598 Surrogate: 4-Bromofluorobenzene 113 Limits: 70-130%04/03/23 14:401 MSA V31598 Surrogate: Dibromofluoromethane 98.0 Limits: 70-130%04/03/23 14:401 MSA V31598 Surrogate: 1,2-Dichloroethane - d4 111 Limits: 70-130%04/03/23 14:401 MSA V31598 Surrogate: Toluene-d8 108 Limits: 70-130%04/03/23 14:401 MSA V31598 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V31295 03/28/23 09:04 <0.303 µg/L 0.303 2.01Acenaphthene 1 03/29/23 20:56 V31440JMV <0.298 µg/L 0.298 2.01Acenaphthylene 1 03/29/23 20:56 V31440JMV <0.840 µg/L 0.840 2.01Anthracene 1 03/29/23 20:56 V31440JMV <1.33 µg/L 1.33 10.1Benzidine 1 03/29/23 20:56 V31440JMV <0.640 µg/L 0.640 2.01Benzo(a)anthracene 1 03/29/23 20:56 V31440JMV <1.03 µg/L 1.03 2.01Benzo(a)pyrene 1 03/29/23 20:56 V31440JMV <2.50 µg/L 2.50 5.03Benzo(b)fluoranthene 1 03/29/23 20:56 V31440JMV <1.02 µg/L 1.02 5.03Benzo(g,h,i)perylene 1 03/29/23 20:56 V31440JMV <2.00 µg/L 2.00 5.03Benzo(k)fluoranthene 1 03/29/23 20:56 V31440JMV <1.11 µg/L 1.11 10.1Benzoic Acid 1 03/29/23 20:56 V31440JMV <0.688 µg/L 0.688 5.03Benzyl alcohol 1 03/29/23 20:56 V31440JMV <0.470 µg/L 0.470 5.03Bis(2-Chloroethoxy)methane 1 03/29/23 20:56 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 54 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:DW-1 91864 Matrix: 3/21/2023 10:35 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):V31295 03/28/23 09:04 <1.05 µg/L 1.05 5.03Bis(2-Chloroethyl)ether 1 03/29/23 20:56 V31440JMV <1.09 µg/L 1.09 5.03Bis(2-Chloroisopropyl)ether 1 03/29/23 20:56 V31440JMV <3.49 µg/L 3.49 10.1Bis(2-ethylhexyl)phthalate 1 03/29/23 20:56 V31440JMV <1.12 µg/L 1.12 5.034-Bromophenyl phenyl ether 1 03/29/23 20:56 V31440JMV <1.84 µg/L 1.84 5.03Butyl benzyl phthalate 1 03/29/23 20:56 V31440JMV <1.19 µg/L 1.19 5.034-Chloro-3-methylphenol 1 03/29/23 20:56 V31440JMV <7.42 µg/L 7.42 20.12-Chloronaphthalene 1 03/29/23 20:56 V31440JMV <0.947 µg/L 0.947 10.12-Chlorophenol 1 03/29/23 20:56 V31440JMV <1.72 µg/L 1.72 5.034-Chlorophenyl phenyl ether 1 03/29/23 20:56 V31440JMV <0.407 µg/L 0.407 2.01Chrysene 1 03/29/23 20:56 V31440JMV <0.436 µg/L 0.436 2.01Dibenz(a,h)anthracene 1 03/29/23 20:56 V31440JMV <0.861 µg/L 0.861 5.03Dibenzofuran 1 03/29/23 20:56 V31440JMV <2.01 µg/L 2.01 5.031,2-Dichlorobenzene 1 03/29/23 20:56 V31440JMV <2.01 µg/L 2.01 5.031,3-Dichlorobenzene 1 03/29/23 20:56 V31440JMV <2.06 µg/L 2.06 5.031,4-Dichlorobenzene 1 03/29/23 20:56 V31440JMV <1.90 µg/L 1.90 5.033,3'-Dichlorobenzidine 1 03/29/23 20:56 V31440JMV <1.47 µg/L 1.47 10.12,4-Dichlorophenol 1 03/29/23 20:56 V31440JMV <0.749 µg/L 0.749 5.03Diethyl phthalate 1 03/29/23 20:56 V31440JMV <0.944 µg/L 0.944 5.03Dimethyl phthalate 1 03/29/23 20:56 V31440JMV <1.58 µg/L 1.58 20.12,4-Dimethylphenol 1 03/29/23 20:56 V31440JMV <2.07 µg/L 2.07 5.03Di-n-butyl phthalate 1 03/29/23 20:56 V31440JMV <2.09 µg/L 2.09 10.14,6-Dinitro-2-methylphenol 1 03/29/23 20:56 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 55 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:DW-1 91864 Matrix: 3/21/2023 10:35 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):V31295 03/28/23 09:04 <1.94 µg/L 1.94 10.12,4-Dinitrophenol 1 03/29/23 20:56 V31440JMV <1.12 µg/L 1.12 5.032,4-Dinitrotoluene 1 03/29/23 20:56 V31440JMV <0.813 µg/L 0.813 5.032,6-Dinitrotoluene 1 03/29/23 20:56 V31440JMV <1.66 µg/L 1.66 5.03Di-n-Octyl Phthalate 1 03/29/23 20:56 V31440JMV <0.251 µg/L 0.251 2.01Fluoranthene 1 03/29/23 20:56 V31440JMV <0.811 µg/L 0.811 2.01Fluorene 1 03/29/23 20:56 V31440JMV <0.984 µg/L 0.984 5.03Hexachlorobenzene 1 03/29/23 20:56 V31440JMV <2.75 µg/L 2.75 5.03Hexachlorobutadiene 1 03/29/23 20:56 V31440JMV <2.06 µg/L 2.06 5.03Hexachlorocyclopentadiene 1 03/29/23 20:56 V31440JMV <1.77 µg/L 1.77 5.03Hexachloroethane 1 03/29/23 20:56 V31440JMV <0.479 µg/L 0.479 2.01Indeno(1,2,3-cd)pyrene 1 03/29/23 20:56 V31440JMV <0.446 µg/L 0.446 5.03Isophorone 1 03/29/23 20:56 V31440JMV <1.15 µg/L 1.15 2.011-Methylnaphthalene 1 03/29/23 20:56 V31440JMV <0.669 µg/L 0.669 2.012-Methylnaphthalene 1 03/29/23 20:56 V31440JMV <0.731 µg/L 0.731 2.01Naphthalene 1 03/29/23 20:56 V31440JMV <0.910 µg/L 0.910 5.03Nitrobenzene 1 03/29/23 20:56 V31440JMV <0.495 µg/L 0.495 5.032-Nitrophenol 1 03/29/23 20:56 V31440JMV <1.24 µg/L 1.24 10.14-Nitrophenol 1 03/29/23 20:56 V31440JMV <1.11 µg/L 1.11 5.03N-Nitrosodiphenylamine 1 03/29/23 20:56 V31440JMV <0.644 µg/L 0.644 5.03N-Nitroso-di-n-propylamine 1 03/29/23 20:56 V31440JMV <1.44 µg/L 1.44 5.03Pentachlorophenol 1 03/29/23 20:56 V31440JMV <0.430 µg/L 0.430 2.01Phenanthrene 1 03/29/23 20:56 V31440JMV Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Method Quantitation LimitMQLMinimum valueM Page 56 of 91 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-081-0100 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 David Graham Charlotte Received : 03/22/2023 DOT-476 Report Date : 04/07/2023 Sample ID : Lab No : Sampled:DW-1 91864 Matrix: 3/21/2023 10:35 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):V31295 03/28/23 09:04 <0.654 µg/L 0.654 5.03Phenol 1 03/29/23 20:56 V31440JMV <0.436 µg/L 0.436 2.01Pyrene 1 03/29/23 20:56 V31440JMV <2.22 µg/L 2.22 5.031,2,4-Trichlorobenzene 1 03/29/23 20:56 V31440JMV <1.33 µg/L 1.33 5.032,4,6-Trichlorophenol 1 03/29/23 20:56 V31440JMV 625.1Surrogate: Phenol-d5 19.7 Limits: 10-63%03/29/23 20:561 JMV Surrogate: 2-Fluorobiphenyl 65.0 Limits: 49-118%03/29/23 20:561 JMV V31440 Surrogate: 2-Fluorophenol 32.1 Limits: 22-84%03/29/23 20:561 JMV V31440 Surrogate: Nitrobenzene-d5 57.3 Limits: 43-123%03/29/23 20:561 JMV V31440 Surrogate: 4-Terphenyl-d14 77.5 Limits: 49-151%03/29/23 20:561 JMV V31440 Surrogate: 2,4,6-Tribromophenol 50.4 Limits: 31-144%03/29/23 20:561 JMV V31440 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Estimated valueJRecovery out of rangeI Page 57 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31446 Associated Lab Samples: 91859, 91860, 91861, 91862 LRB-V31446 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/30/23 17:4510.01.80<1.80µg/LAcetone 03/30/23 17:450.5000.180<0.180µg/LBenzene 03/30/23 17:450.5000.210<0.210µg/LBromobenzene 03/30/23 17:451.000.420<0.420µg/LBromochloromethane 03/30/23 17:450.5000.160<0.160µg/LBromodichloromethane 03/30/23 17:455.001.50<1.50µg/LBromoform 03/30/23 17:451.000.280<0.280µg/LBromomethane 03/30/23 17:450.5000.180<0.180µg/Ln-Butylbenzene 03/30/23 17:450.5000.200<0.200µg/Lsec-Butyl benzene 03/30/23 17:452.000.920<0.920µg/Ltert-Butyl benzene 03/30/23 17:450.5000.180<0.180µg/LCarbon Tetrachloride 03/30/23 17:450.5000.190<0.190µg/LChlorobenzene 03/30/23 17:450.5000.190<0.190µg/LChlorodibromomethane 03/30/23 17:451.000.430<0.430µg/LChloroethane 03/30/23 17:450.5000.220<0.220µg/LChloroform 03/30/23 17:450.5000.220<0.220µg/LChloromethane 03/30/23 17:450.5000.200<0.200µg/L2-Chlorotoluene 03/30/23 17:450.5000.200<0.200µg/L4-Chlorotoluene 03/30/23 17:450.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 03/30/23 17:452.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 03/30/23 17:450.5000.200<0.200µg/L1,2-Dibromoethane 03/30/23 17:450.5000.230<0.230µg/LDibromomethane 03/30/23 17:450.5000.220<0.220µg/L1,2-Dichlorobenzene 03/30/23 17:450.5000.190<0.190µg/L1,3-Dichlorobenzene 03/30/23 17:450.5000.210<0.210µg/L1,4-Dichlorobenzene 03/30/23 17:455.001.20<1.20µg/LDichlorodifluoromethane 03/30/23 17:450.5000.240<0.240µg/L1,1-Dichloroethane Page 1 of 32Date:04/07/2023 04:51 PM Page 58 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31446 Associated Lab Samples: 91859, 91860, 91861, 91862 LRB-V31446 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/30/23 17:450.5000.150<0.150µg/L1,2-Dichloroethane 03/30/23 17:450.5000.150<0.150µg/L1,1-Dichloroethene 03/30/23 17:450.5000.200<0.200µg/Lcis-1,2-Dichloroethene 03/30/23 17:450.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 03/30/23 17:450.5000.190<0.190µg/L1,2-Dichloropropane 03/30/23 17:450.5000.130<0.130µg/L1,3-Dichloropropane 03/30/23 17:452.000.210<0.210µg/L2,2-Dichloropropane 03/30/23 17:450.5000.200<0.200µg/L1,1-Dichloropropene 03/30/23 17:450.5000.210<0.210µg/Lcis-1,3-Dichloropropene 03/30/23 17:450.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 03/30/23 17:4520042.0<42.0µg/LEthanol 03/30/23 17:450.5000.170<0.170µg/LEthylbenzene 03/30/23 17:453.000.350<0.350µg/LHexachlorobutadiene 03/30/23 17:451.000.380<0.380µg/L2-Hexanone 03/30/23 17:450.5000.180<0.180µg/LIsopropylbenzene 03/30/23 17:450.5000.089<0.089µg/L4-Isopropyl toluene 03/30/23 17:455.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 03/30/23 17:451.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 03/30/23 17:451.000.078<0.078µg/L4-Methyl-2-Pentanone 03/30/23 17:452.000.330<0.330µg/LMethylene Chloride 03/30/23 17:451.000.470<0.470µg/LNaphthalene 03/30/23 17:450.5000.190<0.190µg/Ln-Propylbenzene 03/30/23 17:450.5000.220<0.220µg/LStyrene 03/30/23 17:450.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 03/30/23 17:450.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 03/30/23 17:450.5000.220<0.220µg/LTetrachloroethene 03/30/23 17:450.5000.220<0.220µg/LToluene Page 2 of 32Date:04/07/2023 04:51 PM Page 59 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31446 Associated Lab Samples: 91859, 91860, 91861, 91862 LRB-V31446 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/30/23 17:450.5000.380<0.380µg/L1,2,3-Trichlorobenzene 03/30/23 17:450.5000.310<0.310µg/L1,2,4-Trichlorobenzene 03/30/23 17:450.5000.160<0.160µg/L1,1,1-Trichloroethane 03/30/23 17:450.5000.096<0.096µg/L1,1,2-Trichloroethane 03/30/23 17:450.5000.180<0.180µg/LTrichloroethene 03/30/23 17:450.5000.180<0.180µg/LTrichlorofluoromethane 03/30/23 17:450.5000.270<0.270µg/L1,2,3-Trichloropropane 03/30/23 17:450.5000.190<0.190µg/L1,2,4-Trimethylbenzene 03/30/23 17:450.5000.180<0.180µg/L1,3,5-Trimethylbenzene 03/30/23 17:455.001.00<1.00µg/LVinyl Acetate 03/30/23 17:450.5000.170<0.170µg/LVinyl Chloride 03/30/23 17:450.5000.210<0.210µg/Lo-Xylene 03/30/23 17:451.000.420<0.420µg/Lm,p-Xylene 03/30/23 17:454-Bromofluorobenzene (S)85.8 70-130 03/30/23 17:45Dibromofluoromethane (S)104 70-130 03/30/23 17:451,2-Dichloroethane - d4 (S)116 70-130 03/30/23 17:45Toluene-d8 (S)92.4 70-130 LCS-V31446 LCSD-V31446Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 39.6 99.010441.440.0µg/LAcetone 40-160 4.4 20.0 18.2 91.093.018.620.0µg/LBenzene 70-130 2.1 20.0 25.3 12712124.220.0µg/LBromobenzene 70-130 4.4 20.0 20.6 10311623.120.0µg/LBromochloromethane 70-130 11.4 20.0 24.9 12511422.720.0µg/LBromodichloromethane 70-130 9.2 20.0 Page 3 of 32Date:04/07/2023 04:51 PM Page 60 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31446 LCS-V31446 LCSD-V31446Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 23.3 11711222.420.0µg/LBromoform 70-130 3.9 20.0 24.0 12011523.020.0µg/LBromomethane 60-140 4.2 20.0 24.4 12211322.520.0µg/Ln-Butylbenzene 70-130 8.1 20.0 22.8 11410721.420.0µg/Lsec-Butyl benzene 70-130 6.3 20.0 25.2 12610821.620.0µg/Ltert-Butyl benzene 70-130 15.3 20.0 21.3 10710420.820.0µg/LChlorobenzene 70-130 2.3 20.0 23.1 11610521.020.0µg/LChlorodibromomethane 70-130 9.5 20.0 18.7 93.510120.220.0µg/LChloroethane 60-140 7.7 20.0 20.6 10311222.320.0µg/LChloroform 70-130 7.9 20.0 17.3 86.586.517.320.0µg/LChloromethane 60-140 0.0 20.0 24.9 12511823.520.0µg/L4-Chlorotoluene 70-130 5.7 20.0 18.2 91.090.018.020.0µg/LDi-Isopropyl Ether (DIPE)70-130 1.1 20.0 22.2 11111022.020.0µg/L1,2-Dibromo-3-Chloropropane 70-130 0.9 20.0 22.4 11210821.620.0µg/L1,2-Dibromoethane 70-130 3.6 20.0 24.7 12410621.220.0µg/LDibromomethane 70-130 15.2 20.0 22.7 11410621.220.0µg/L1,2-Dichlorobenzene 70-130 6.8 20.0 23.5 11810621.120.0µg/L1,3-Dichlorobenzene 70-130 10.7 20.0 22.3 11210821.620.0µg/L1,4-Dichlorobenzene 70-130 3.1 20.0 19.9 99.511021.920.0µg/LDichlorodifluoromethane 60-140 9.5 20.0 19.8 99.097.019.420.0µg/L1,1-Dichloroethane 70-130 2.0 20.0 22.6 11311723.320.0µg/L1,2-Dichloroethane 70-130 3.0 20.0 20.4 10210821.620.0µg/L1,1-Dichloroethene 70-130 5.7 20.0 20.4 10210821.620.0µg/Lcis-1,2-Dichloroethene 70-130 5.7 20.0 20.3 10210220.420.0µg/Ltrans-1,2-Dichloroethene 70-130 0.4 20.0 23.0 11598.019.620.0µg/L1,2-Dichloropropane 70-130 15.9 20.0 21.0 10598.019.620.0µg/L1,3-Dichloropropane 70-130 6.8 20.0 Page 4 of 32Date:04/07/2023 04:51 PM Page 61 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31446 LCS-V31446 LCSD-V31446Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 23.3 11711723.420.0µg/L2,2-Dichloropropane 70-130 0.4 20.0 22.3 11211422.720.0µg/L1,1-Dichloropropene 70-130 1.7 20.0 24.8 12410921.820.0µg/Lcis-1,3-Dichloropropene 70-130 12.8 20.0 26.7 134*136*27.220.0µg/Ltrans-1,3-Dichloropropene 70-130 1.8 20.0 517 103109543500µg/LEthanol 60-140 4.9 20.0 21.1 10698.019.620.0µg/LEthylbenzene 70-130 7.3 20.0 22.1 11191.018.220.0µg/L2-Hexanone 60-140 19.3 20.0 24.7 12412324.520.0µg/LIsopropylbenzene 70-130 0.8 20.0 24.2 12111422.820.0µg/L4-Isopropyl toluene 70-130 5.9 20.0 17.6 88.081.516.320.0µg/LMethyl Ethyl Ketone (MEK)60-140 7.6 20.0 19.8 99.010521.020.0µg/LMethyl tert-butyl ether (MTBE)70-130 5.8 20.0 24.6 12311422.720.0µg/L4-Methyl-2-Pentanone 60-140 8.0 20.0 21.1 10610621.220.0µg/LMethylene Chloride 70-130 0.4 20.0 22.8 11412825.620.0µg/LNaphthalene 70-130 11.5 20.0 24.3 12211723.420.0µg/Ln-Propylbenzene 70-130 3.7 20.0 21.8 10911022.020.0µg/LStyrene 70-130 0.9 20.0 23.3 11711222.420.0µg/L1,1,1,2-Tetrachloroethane 70-130 3.9 20.0 24.0 12011322.520.0µg/L1,1,2,2-Tetrachloroethane 70-130 6.4 20.0 23.5 11810721.320.0µg/LTetrachloroethene 70-130 9.8 20.0 24.0 12010020.020.0µg/LToluene 70-130 18.1 20.0 22.5 11311723.320.0µg/L1,1,1-Trichloroethane 70-130 3.4 20.0 23.5 11812424.720.0µg/L1,1,2-Trichloroethane 70-130 4.9 20.0 23.2 11610521.020.0µg/LTrichloroethene 70-130 9.9 20.0 22.6 11312023.920.0µg/LTrichlorofluoromethane 60-140 5.5 20.0 24.3 12212024.020.0µg/L1,2,3-Trichloropropane 70-130 1.2 20.0 22.3 11210821.520.0µg/L1,2,4-Trimethylbenzene 70-130 3.6 20.0 Page 5 of 32* QC Fail Date:04/07/2023 04:51 PM Page 62 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31446 LCS-V31446 LCSD-V31446Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 25.8 12912424.720.0µg/L1,3,5-Trimethylbenzene 70-130 4.3 20.0 19.3 96.584.516.920.0µg/LVinyl Acetate 60-140 13.2 20.0 18.8 94.010220.320.0µg/LVinyl Chloride 60-140 7.6 20.0 22.0 11010621.120.0µg/Lo-Xylene 70-130 4.1 20.0 46.1 11510843.240.0µg/Lm,p-Xylene 70-130 6.4 20.0 1111154-Bromofluorobenzene (S)70-130 93.8105Dibromofluoromethane (S)70-130 1051151,2-Dichloroethane - d4 (S)70-130 99.881.6Toluene-d8 (S)70-130 Page 6 of 32Date:04/07/2023 04:51 PM Page 63 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31534QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31533 Associated Lab Samples: 91863 LRB-V31533 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/31/23 14:2710.01.80<1.80µg/LAcetone 03/31/23 14:270.5000.180<0.180µg/LBenzene 03/31/23 14:270.5000.210<0.210µg/LBromobenzene 03/31/23 14:271.000.420<0.420µg/LBromochloromethane 03/31/23 14:270.5000.160<0.160µg/LBromodichloromethane 03/31/23 14:275.001.50<1.50µg/LBromoform 03/31/23 14:271.000.280<0.280µg/LBromomethane 03/31/23 14:270.5000.180<0.180µg/Ln-Butylbenzene 03/31/23 14:270.5000.200<0.200µg/Lsec-Butyl benzene 03/31/23 14:272.000.920<0.920µg/Ltert-Butyl benzene 03/31/23 14:270.5000.180<0.180µg/LCarbon Tetrachloride 03/31/23 14:270.5000.190<0.190µg/LChlorobenzene 03/31/23 14:270.5000.190<0.190µg/LChlorodibromomethane 03/31/23 14:271.000.430<0.430µg/LChloroethane 03/31/23 14:270.5000.220<0.220µg/LChloroform 03/31/23 14:270.5000.220<0.220µg/LChloromethane 03/31/23 14:270.5000.200<0.200µg/L2-Chlorotoluene 03/31/23 14:270.5000.200<0.200µg/L4-Chlorotoluene 03/31/23 14:270.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 03/31/23 14:272.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 03/31/23 14:270.5000.200<0.200µg/L1,2-Dibromoethane 03/31/23 14:270.5000.230<0.230µg/LDibromomethane 03/31/23 14:270.5000.220<0.220µg/L1,2-Dichlorobenzene 03/31/23 14:270.5000.190<0.190µg/L1,3-Dichlorobenzene 03/31/23 14:270.5000.210<0.210µg/L1,4-Dichlorobenzene 03/31/23 14:275.001.20<1.20µg/LDichlorodifluoromethane 03/31/23 14:270.5000.240<0.240µg/L1,1-Dichloroethane Page 7 of 32Date:04/07/2023 04:51 PM Page 64 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31534QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31533 Associated Lab Samples: 91863 LRB-V31533 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/31/23 14:270.5000.150<0.150µg/L1,2-Dichloroethane 03/31/23 14:270.5000.150<0.150µg/L1,1-Dichloroethene 03/31/23 14:270.5000.200<0.200µg/Lcis-1,2-Dichloroethene 03/31/23 14:270.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 03/31/23 14:270.5000.190<0.190µg/L1,2-Dichloropropane 03/31/23 14:270.5000.130<0.130µg/L1,3-Dichloropropane 03/31/23 14:272.000.210<0.210µg/L2,2-Dichloropropane 03/31/23 14:270.5000.200<0.200µg/L1,1-Dichloropropene 03/31/23 14:270.5000.210<0.210µg/Lcis-1,3-Dichloropropene 03/31/23 14:270.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 03/31/23 14:2720042.0<42.0µg/LEthanol 03/31/23 14:270.5000.170<0.170µg/LEthylbenzene 03/31/23 14:273.000.350<0.350µg/LHexachlorobutadiene 03/31/23 14:271.000.380<0.380µg/L2-Hexanone 03/31/23 14:270.5000.180<0.180µg/LIsopropylbenzene 03/31/23 14:270.5000.089<0.089µg/L4-Isopropyl toluene 03/31/23 14:275.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 03/31/23 14:271.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 03/31/23 14:271.000.078<0.078µg/L4-Methyl-2-Pentanone 03/31/23 14:272.000.330<0.330µg/LMethylene Chloride 03/31/23 14:271.000.470<0.470µg/LNaphthalene 03/31/23 14:270.5000.190<0.190µg/Ln-Propylbenzene 03/31/23 14:270.5000.220<0.220µg/LStyrene 03/31/23 14:270.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 03/31/23 14:270.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 03/31/23 14:270.5000.220<0.220µg/LTetrachloroethene 03/31/23 14:270.5000.220<0.220µg/LToluene Page 8 of 32Date:04/07/2023 04:51 PM Page 65 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31534QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31533 Associated Lab Samples: 91863 LRB-V31533 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/31/23 14:270.5000.380<0.380µg/L1,2,3-Trichlorobenzene 03/31/23 14:270.5000.310<0.310µg/L1,2,4-Trichlorobenzene 03/31/23 14:270.5000.160<0.160µg/L1,1,1-Trichloroethane 03/31/23 14:270.5000.096<0.096µg/L1,1,2-Trichloroethane 03/31/23 14:270.5000.180<0.180µg/LTrichloroethene 03/31/23 14:270.5000.180<0.180µg/LTrichlorofluoromethane 03/31/23 14:270.5000.270<0.270µg/L1,2,3-Trichloropropane 03/31/23 14:270.5000.190<0.190µg/L1,2,4-Trimethylbenzene 03/31/23 14:270.5000.180<0.180µg/L1,3,5-Trimethylbenzene 03/31/23 14:275.001.00<1.00µg/LVinyl Acetate 03/31/23 14:270.5000.170<0.170µg/LVinyl Chloride 03/31/23 14:270.5000.210<0.210µg/Lo-Xylene 03/31/23 14:271.000.420<0.420µg/Lm,p-Xylene 03/31/23 14:274-Bromofluorobenzene (S)98.4 70-130 03/31/23 14:27Dibromofluoromethane (S)104 70-130 03/31/23 14:271,2-Dichloroethane - d4 (S)114 70-130 03/31/23 14:27Toluene-d8 (S)92.2 70-130 LCS-V31533Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 11422.720.0µg/LBromochloromethane 70-130 10921.720.0µg/LBromoform 70-130 11222.420.0µg/LChloroform 70-130 11823.520.0µg/L1,1-Dichloroethane 70-130 11222.420.0µg/Lcis-1,2-Dichloroethene 70-130 12424.820.0µg/L2,2-Dichloropropane 70-130 Page 9 of 32Date:04/07/2023 04:51 PM Page 66 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31534QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31533 LCS-V31533Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 11623.220.0µg/L1,1-Dichloropropene 70-130 12725.320.0µg/L1,1,1-Trichloroethane 70-130 LCS-V31533 LCSD-V31533Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 48.1 12011546.140.0µg/LAcetone 40-160 4.2 20.0 24.3 12210120.120.0µg/LBenzene 70-130 18.9 20.0 26.0 13010721.320.0µg/LBromobenzene 70-130 19.8 20.0 23.2 11611623.120.0µg/LBromodichloromethane 70-130 0.4 20.0 23.4 11711222.420.0µg/LBromomethane 60-140 4.3 20.0 23.9 12011523.020.0µg/Ln-Butylbenzene 70-130 3.8 20.0 24.1 12110921.720.0µg/Lsec-Butyl benzene 70-130 10.4 20.0 25.1 12611021.920.0µg/Ltert-Butyl benzene 70-130 13.6 20.0 22.0 11011122.120.0µg/LChlorobenzene 70-130 0.4 20.0 22.6 11310721.420.0µg/LChlorodibromomethane 70-130 5.4 20.0 21.5 10895.519.120.0µg/LChloroethane 60-140 11.8 20.0 17.6 88.085.017.020.0µg/LChloromethane 60-140 3.4 20.0 25.6 12811623.120.0µg/L2-Chlorotoluene 70-130 10.2 20.0 24.9 12510621.220.0µg/L4-Chlorotoluene 70-130 16.0 20.0 25.0 12511222.420.0µg/LDi-Isopropyl Ether (DIPE)70-130 10.9 20.0 22.2 11111122.120.0µg/L1,2-Dibromo-3-Chloropropane 70-130 0.4 20.0 22.5 11311222.420.0µg/L1,2-Dibromoethane 70-130 0.4 20.0 23.5 11810621.120.0µg/LDibromomethane 70-130 10.7 20.0 21.8 10911222.420.0µg/L1,2-Dichlorobenzene 70-130 2.7 20.0 23.3 11710721.320.0µg/L1,3-Dichlorobenzene 70-130 8.9 20.0 Page 10 of 32Date:04/07/2023 04:51 PM Page 67 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31534QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31533 LCS-V31533 LCSD-V31533Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 21.5 10811022.020.0µg/L1,4-Dichlorobenzene 70-130 2.2 20.0 19.3 96.595.019.020.0µg/LDichlorodifluoromethane 60-140 1.5 20.0 25.5 12812224.420.0µg/L1,2-Dichloroethane 70-130 4.4 20.0 19.5 97.598.519.720.0µg/L1,2-Dichloropropane 70-130 1.0 20.0 21.1 10690.518.120.0µg/L1,3-Dichloropropane 70-130 15.3 20.0 22.1 11112625.120.0µg/Lcis-1,3-Dichloropropene 70-130 12.7 20.0 24.3 122137*27.420.0µg/Ltrans-1,3-Dichloropropene 70-130 11.9 20.0 687 137123614500µg/LEthanol 60-140 11.2 20.0 20.6 10310520.920.0µg/LEthylbenzene 70-130 1.4 20.0 18.8 94.096.519.320.0µg/L2-Hexanone 60-140 2.6 20.0 25.2 12612023.920.0µg/LIsopropylbenzene 70-130 5.2 20.0 25.7 12911522.920.0µg/L4-Isopropyl toluene 70-130 11.5 20.0 20.7 10483.516.720.0µg/LMethyl Ethyl Ketone (MEK)60-140 21.3*20.0 25.3 12712625.120.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.7 20.0 20.7 10411122.220.0µg/L4-Methyl-2-Pentanone 60-140 6.9 20.0 25.7 12912825.520.0µg/LMethylene Chloride 70-130 0.7 20.0 25.0 12511723.420.0µg/LNaphthalene 70-130 6.6 20.0 25.2 12610120.120.0µg/Ln-Propylbenzene 70-130 22.5*20.0 24.5 12310921.720.0µg/LStyrene 70-130 12.1 20.0 25.6 12811623.220.0µg/L1,1,1,2-Tetrachloroethane 70-130 9.8 20.0 24.6 12310220.420.0µg/L1,1,2,2-Tetrachloroethane 70-130 18.6 20.0 23.1 11611522.920.0µg/LTetrachloroethene 70-130 0.8 20.0 22.3 11212524.920.0µg/LToluene 70-130 11.0 20.0 22.5 11312925.720.0µg/L1,1,2-Trichloroethane 70-130 13.2 20.0 23.5 11811222.320.0µg/LTrichloroethene 70-130 5.2 20.0 24.2 12112124.120.0µg/LTrichlorofluoromethane 60-140 0.4 20.0 Page 11 of 32* QC Fail Date:04/07/2023 04:51 PM Page 68 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31534QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31533 LCS-V31533 LCSD-V31533Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 24.5 12393.518.720.0µg/L1,2,3-Trichloropropane 70-130 26.8*20.0 23.7 11910921.820.0µg/L1,2,4-Trimethylbenzene 70-130 8.3 20.0 25.5 12810721.420.0µg/L1,3,5-Trimethylbenzene 70-130 17.4 20.0 24.4 12210220.420.0µg/LVinyl Acetate 60-140 17.8 20.0 19.7 98.510420.720.0µg/LVinyl Chloride 60-140 4.9 20.0 24.4 12210521.020.0µg/Lo-Xylene 70-130 14.9 20.0 45.6 11411144.240.0µg/Lm,p-Xylene 70-130 3.1 20.0 1171014-Bromofluorobenzene (S)70-130 124104Dibromofluoromethane (S)70-130 1261121,2-Dichloroethane - d4 (S)70-130 97.296.6Toluene-d8 (S)70-130 Page 12 of 32* QC Fail Date:04/07/2023 04:51 PM Page 69 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31598QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31596 Associated Lab Samples: 91864 LRB-V31596 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/03/23 14:1210.01.80<1.80µg/LAcetone 04/03/23 14:120.5000.180<0.180µg/LBenzene 04/03/23 14:120.5000.210<0.210µg/LBromobenzene 04/03/23 14:121.000.420<0.420µg/LBromochloromethane 04/03/23 14:120.5000.160<0.160µg/LBromodichloromethane 04/03/23 14:125.001.50<1.50µg/LBromoform 04/03/23 14:121.000.280<0.280µg/LBromomethane 04/03/23 14:120.5000.180<0.180µg/Ln-Butylbenzene 04/03/23 14:120.5000.200<0.200µg/Lsec-Butyl benzene 04/03/23 14:122.000.920<0.920µg/Ltert-Butyl benzene 04/03/23 14:120.5000.180<0.180µg/LCarbon Tetrachloride 04/03/23 14:120.5000.190<0.190µg/LChlorobenzene 04/03/23 14:120.5000.190<0.190µg/LChlorodibromomethane 04/03/23 14:121.000.430<0.430µg/LChloroethane 04/03/23 14:120.5000.220<0.220µg/LChloroform 04/03/23 14:120.5000.220<0.220µg/LChloromethane 04/03/23 14:120.5000.200<0.200µg/L2-Chlorotoluene 04/03/23 14:120.5000.200<0.200µg/L4-Chlorotoluene 04/03/23 14:120.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 04/03/23 14:122.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 04/03/23 14:120.5000.200<0.200µg/L1,2-Dibromoethane 04/03/23 14:120.5000.230<0.230µg/LDibromomethane 04/03/23 14:120.5000.220<0.220µg/L1,2-Dichlorobenzene 04/03/23 14:120.5000.190<0.190µg/L1,3-Dichlorobenzene 04/03/23 14:120.5000.210<0.210µg/L1,4-Dichlorobenzene 04/03/23 14:125.001.20<1.20µg/LDichlorodifluoromethane 04/03/23 14:120.5000.240<0.240µg/L1,1-Dichloroethane Page 13 of 32Date:04/07/2023 04:51 PM Page 70 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31598QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31596 Associated Lab Samples: 91864 LRB-V31596 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/03/23 14:120.5000.150<0.150µg/L1,2-Dichloroethane 04/03/23 14:120.5000.150<0.150µg/L1,1-Dichloroethene 04/03/23 14:120.5000.200<0.200µg/Lcis-1,2-Dichloroethene 04/03/23 14:120.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 04/03/23 14:120.5000.190<0.190µg/L1,2-Dichloropropane 04/03/23 14:120.5000.130<0.130µg/L1,3-Dichloropropane 04/03/23 14:122.000.210<0.210µg/L2,2-Dichloropropane 04/03/23 14:120.5000.200<0.200µg/L1,1-Dichloropropene 04/03/23 14:120.5000.210<0.210µg/Lcis-1,3-Dichloropropene 04/03/23 14:120.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 04/03/23 14:1220042.0<42.0µg/LEthanol 04/03/23 14:120.5000.170<0.170µg/LEthylbenzene 04/03/23 14:123.000.350<0.350µg/LHexachlorobutadiene 04/03/23 14:121.000.380<0.380µg/L2-Hexanone 04/03/23 14:120.5000.180<0.180µg/LIsopropylbenzene 04/03/23 14:120.5000.089<0.089µg/L4-Isopropyl toluene 04/03/23 14:125.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 04/03/23 14:121.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 04/03/23 14:121.000.078<0.078µg/L4-Methyl-2-Pentanone 04/03/23 14:122.000.330<0.330µg/LMethylene Chloride 04/03/23 14:121.000.470<0.470µg/LNaphthalene 04/03/23 14:120.5000.190<0.190µg/Ln-Propylbenzene 04/03/23 14:120.5000.220<0.220µg/LStyrene 04/03/23 14:120.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 04/03/23 14:120.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 04/03/23 14:120.5000.220<0.220µg/LTetrachloroethene 04/03/23 14:120.5000.220<0.220µg/LToluene Page 14 of 32Date:04/07/2023 04:51 PM Page 71 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31598QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31596 Associated Lab Samples: 91864 LRB-V31596 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/03/23 14:120.5000.380<0.380µg/L1,2,3-Trichlorobenzene 04/03/23 14:120.5000.310<0.310µg/L1,2,4-Trichlorobenzene 04/03/23 14:120.5000.160<0.160µg/L1,1,1-Trichloroethane 04/03/23 14:120.5000.096<0.096µg/L1,1,2-Trichloroethane 04/03/23 14:120.5000.180<0.180µg/LTrichloroethene 04/03/23 14:120.5000.180<0.180µg/LTrichlorofluoromethane 04/03/23 14:120.5000.270<0.270µg/L1,2,3-Trichloropropane 04/03/23 14:120.5000.190<0.190µg/L1,2,4-Trimethylbenzene 04/03/23 14:120.5000.180<0.180µg/L1,3,5-Trimethylbenzene 04/03/23 14:125.001.00<1.00µg/LVinyl Acetate 04/03/23 14:120.5000.170<0.170µg/LVinyl Chloride 04/03/23 14:120.5000.210<0.210µg/Lo-Xylene 04/03/23 14:121.000.420<0.420µg/Lm,p-Xylene 04/03/23 14:124-Bromofluorobenzene (S)103 70-130 04/03/23 14:12Dibromofluoromethane (S)99.6 70-130 04/03/23 14:121,2-Dichloroethane - d4 (S)112 70-130 04/03/23 14:12Toluene-d8 (S)85.8 70-130 LCS-V31596 LCSD-V31596Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 41.1 10380.532.240.0µg/LAcetone 40-160 24.2*20.0 19.6 98.095.019.020.0µg/LBenzene 70-130 3.1 20.0 21.9 11010621.120.0µg/LBromobenzene 70-130 3.7 20.0 21.9 11010621.120.0µg/LBromochloromethane 70-130 3.7 20.0 22.6 11310721.320.0µg/LBromodichloromethane 70-130 5.9 20.0 Page 15 of 32* QC Fail Date:04/07/2023 04:51 PM Page 72 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31598QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31596 LCS-V31596 LCSD-V31596Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 17.9 89.568.013.620.0µg/LBromomethane 60-140 27.3*20.0 24.6 12311823.520.0µg/Ln-Butylbenzene 70-130 4.5 20.0 21.1 10610821.620.0µg/Lsec-Butyl benzene 70-130 2.3 20.0 22.3 11211021.920.0µg/Ltert-Butyl benzene 70-130 1.8 20.0 23.8 11912625.220.0µg/LCarbon Tetrachloride 70-130 5.7 20.0 20.8 10410621.120.0µg/LChlorobenzene 70-130 1.4 20.0 19.6 98.010821.620.0µg/LChlorodibromomethane 70-130 9.7 20.0 21.5 10898.519.720.0µg/LChloroethane 60-140 8.7 20.0 21.6 10810521.020.0µg/LChloroform 70-130 2.8 20.0 17.3 86.570.514.120.0µg/LChloromethane 60-140 20.3*20.0 23.0 11512024.020.0µg/L2-Chlorotoluene 70-130 4.2 20.0 20.5 10310420.820.0µg/L4-Chlorotoluene 70-130 1.4 20.0 19.8 99.084.516.920.0µg/LDi-Isopropyl Ether (DIPE)70-130 15.8 20.0 23.1 11697.519.520.0µg/L1,2-Dibromo-3-Chloropropane 70-130 16.9 20.0 18.6 93.010220.420.0µg/L1,2-Dibromoethane 70-130 9.2 20.0 23.3 11710721.420.0µg/LDibromomethane 70-130 8.5 20.0 25.4 12710821.620.0µg/L1,2-Dichlorobenzene 70-130 16.1 20.0 21.7 10911122.120.0µg/L1,3-Dichlorobenzene 70-130 1.8 20.0 21.2 10610420.720.0µg/L1,4-Dichlorobenzene 70-130 2.3 20.0 20.6 10389.517.920.0µg/LDichlorodifluoromethane 60-140 14.0 20.0 20.3 10287.017.420.0µg/L1,1-Dichloroethane 70-130 15.3 20.0 22.7 11411723.420.0µg/L1,2-Dichloroethane 70-130 3.0 20.0 24.0 12010521.020.0µg/L1,1-Dichloroethene 70-130 13.3 20.0 21.3 10794.018.820.0µg/Lcis-1,2-Dichloroethene 70-130 12.4 20.0 21.5 10889.517.920.0µg/Ltrans-1,2-Dichloroethene 70-130 18.2 20.0 20.2 10195.019.020.0µg/L1,2-Dichloropropane 70-130 6.1 20.0 Page 16 of 32* QC Fail Date:04/07/2023 04:51 PM Page 73 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31598QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31596 LCS-V31596 LCSD-V31596Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 18.2 91.097.519.520.0µg/L1,3-Dichloropropane 70-130 6.8 20.0 24.3 12212023.920.0µg/L2,2-Dichloropropane 70-130 1.6 20.0 24.0 12011422.820.0µg/L1,1-Dichloropropene 70-130 5.1 20.0 23.1 11699.019.820.0µg/Lcis-1,3-Dichloropropene 70-130 15.3 20.0 20.0 10010721.320.0µg/Ltrans-1,3-Dichloropropene 70-130 6.2 20.0 519 10496.2481500µg/LEthanol 60-140 7.6 20.0 20.0 10097.519.520.0µg/LEthylbenzene 70-130 2.5 20.0 27.9 140*133*26.620.0µg/LHexachlorobutadiene 70-130 4.7 20.0 17.8 89.090.018.020.0µg/L2-Hexanone 60-140 1.1 20.0 23.1 11611022.020.0µg/LIsopropylbenzene 70-130 4.8 20.0 24.0 12011723.420.0µg/L4-Isopropyl toluene 70-130 2.5 20.0 16.4 82.087.017.420.0µg/LMethyl Ethyl Ketone (MEK)60-140 5.9 20.0 23.1 11693.018.620.0µg/LMethyl tert-butyl ether (MTBE)70-130 21.5*20.0 17.3 86.589.017.820.0µg/L4-Methyl-2-Pentanone 60-140 2.8 20.0 21.1 10683.516.720.0µg/LMethylene Chloride 70-130 23.2*20.0 18.8 94.089.017.820.0µg/LNaphthalene 70-130 5.4 20.0 20.2 10110520.920.0µg/Ln-Propylbenzene 70-130 3.4 20.0 21.4 10712725.320.0µg/LStyrene 70-130 16.7 20.0 23.9 12011422.820.0µg/L1,1,1,2-Tetrachloroethane 70-130 4.7 20.0 18.6 93.090.518.120.0µg/L1,1,2,2-Tetrachloroethane 70-130 2.7 20.0 21.9 11012625.120.0µg/LTetrachloroethene 70-130 13.6 20.0 21.0 10595.019.020.0µg/LToluene 70-130 10.0 20.0 24.0 12012023.920.0µg/L1,2,3-Trichlorobenzene 70-130 0.4 20.0 23.3 11711823.520.0µg/L1,2,4-Trichlorobenzene 70-130 0.8 20.0 25.7 12912124.120.0µg/L1,1,1-Trichloroethane 70-130 6.4 20.0 17.9 89.587.517.520.0µg/L1,1,2-Trichloroethane 70-130 2.2 20.0 Page 17 of 32* QC Fail Date:04/07/2023 04:51 PM Page 74 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31598QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31596 LCS-V31596 LCSD-V31596Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 22.5 11311222.320.0µg/LTrichloroethene 70-130 0.8 20.0 24.9 12510220.320.0µg/LTrichlorofluoromethane 60-140 20.3*20.0 19.2 96.093.018.620.0µg/L1,2,3-Trichloropropane 70-130 3.1 20.0 21.7 10910921.820.0µg/L1,2,4-Trimethylbenzene 70-130 0.4 20.0 21.8 10911122.220.0µg/L1,3,5-Trimethylbenzene 70-130 1.8 20.0 21.7 10970.014.020.0µg/LVinyl Acetate 60-140 43.1*20.0 20.2 10179.515.920.0µg/LVinyl Chloride 60-140 23.8*20.0 21.6 10812324.520.0µg/Lo-Xylene 70-130 12.5 20.0 43.6 10911144.440.0µg/Lm,p-Xylene 70-130 1.8 20.0 10599.24-Bromofluorobenzene (S)70-130 100102Dibromofluoromethane (S)70-130 1091061,2-Dichloroethane - d4 (S)70-130 100106Toluene-d8 (S)70-130 Page 18 of 32* QC Fail Date:04/07/2023 04:51 PM Page 75 of 91 Quality Control Data 23-081-0100Report 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 V31390QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31217 Associated Lab Samples: 91861, 91862, 91863 LRB-V31217 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/28/23 15:382.000.302<0.302µg/LAcenaphthene 03/28/23 15:382.000.297<0.297µg/LAcenaphthylene 03/28/23 15:382.000.836<0.836µg/LAnthracene 03/28/23 15:3810.01.32<1.32µg/LBenzidine 03/28/23 15:382.000.637<0.637µg/LBenzo(a)anthracene 03/28/23 15:382.001.02<1.02µg/LBenzo(a)pyrene 03/28/23 15:385.002.49<2.49µg/LBenzo(b)fluoranthene 03/28/23 15:385.001.01<1.01µg/LBenzo(g,h,i)perylene 03/28/23 15:385.001.99<1.99µg/LBenzo(k)fluoranthene 03/28/23 15:3810.01.10<1.10µg/LBenzoic Acid 03/28/23 15:385.000.684<0.684µg/LBenzyl alcohol 03/28/23 15:385.000.468<0.468µg/LBis(2-Chloroethoxy)methane 03/28/23 15:385.001.04<1.04µg/LBis(2-Chloroethyl)ether 03/28/23 15:385.001.08<1.08µg/LBis(2-Chloroisopropyl)ether 03/28/23 15:3810.03.46<3.46µg/LBis(2-ethylhexyl)phthalate 03/28/23 15:385.001.11<1.11µg/L4-Bromophenyl phenyl ether 03/28/23 15:385.001.83<1.83µg/LButyl benzyl phthalate 03/28/23 15:385.001.18<1.18µg/L4-Chloro-3-methylphenol 03/28/23 15:3820.07.38<7.38µg/L2-Chloronaphthalene 03/28/23 15:3810.00.938<0.938µg/L2-Chlorophenol 03/28/23 15:385.001.71<1.71µg/L4-Chlorophenyl phenyl ether 03/28/23 15:382.000.405<0.405µg/LChrysene 03/28/23 15:382.000.434<0.434µg/LDibenz(a,h)anthracene 03/28/23 15:385.000.856<0.856µg/LDibenzofuran 03/28/23 15:385.002.00<2.00µg/L1,2-Dichlorobenzene 03/28/23 15:385.002.00<2.00µg/L1,3-Dichlorobenzene 03/28/23 15:385.002.05<2.05µg/L1,4-Dichlorobenzene Page 19 of 32Date:04/07/2023 04:51 PM Page 76 of 91 Quality Control Data 23-081-0100Report 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 V31390QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31217 Associated Lab Samples: 91861, 91862, 91863 LRB-V31217 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/28/23 15:385.001.89<1.89µg/L3,3'-Dichlorobenzidine 03/28/23 15:3810.01.46<1.46µg/L2,4-Dichlorophenol 03/28/23 15:385.000.745<0.745µg/LDiethyl phthalate 03/28/23 15:385.000.939<0.939µg/LDimethyl phthalate 03/28/23 15:3820.01.57<1.57µg/L2,4-Dimethylphenol 03/28/23 15:385.002.06<2.06µg/LDi-n-butyl phthalate 03/28/23 15:3810.02.07<2.07µg/L4,6-Dinitro-2-methylphenol 03/28/23 15:3810.01.92<1.92µg/L2,4-Dinitrophenol 03/28/23 15:385.001.11<1.11µg/L2,4-Dinitrotoluene 03/28/23 15:385.000.809<0.809µg/L2,6-Dinitrotoluene 03/28/23 15:385.001.65<1.65µg/LDi-n-Octyl Phthalate 03/28/23 15:382.000.250<0.250µg/LFluoranthene 03/28/23 15:382.000.807<0.807µg/LFluorene 03/28/23 15:385.000.979<0.979µg/LHexachlorobenzene 03/28/23 15:385.002.73<2.73µg/LHexachlorobutadiene 03/28/23 15:385.002.05<2.05µg/LHexachlorocyclopentadiene 03/28/23 15:385.001.76<1.76µg/LHexachloroethane 03/28/23 15:382.000.477<0.477µg/LIndeno(1,2,3-cd)pyrene 03/28/23 15:385.000.444<0.444µg/LIsophorone 03/28/23 15:382.001.14<1.14µg/L1-Methylnaphthalene 03/28/23 15:382.000.666<0.666µg/L2-Methylnaphthalene 03/28/23 15:382.000.728<0.728µg/LNaphthalene 03/28/23 15:385.000.905<0.905µg/LNitrobenzene 03/28/23 15:385.000.493<0.493µg/L2-Nitrophenol 03/28/23 15:3810.01.23<1.23µg/L4-Nitrophenol 03/28/23 15:385.001.10<1.10µg/LN-Nitrosodiphenylamine 03/28/23 15:385.000.641<0.641µg/LN-Nitroso-di-n-propylamine Page 20 of 32Date:04/07/2023 04:51 PM Page 77 of 91 Quality Control Data 23-081-0100Report 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 V31390QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31217 Associated Lab Samples: 91861, 91862, 91863 LRB-V31217 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/28/23 15:385.001.43<1.43µg/LPentachlorophenol 03/28/23 15:382.000.428<0.428µg/LPhenanthrene 03/28/23 15:385.000.651<0.651µg/LPhenol 03/28/23 15:382.000.434<0.434µg/LPyrene 03/28/23 15:385.002.21<2.21µg/L1,2,4-Trichlorobenzene 03/28/23 15:385.001.32<1.32µg/L2,4,6-Trichlorophenol 03/28/23 15:382-Fluorobiphenyl (S)80.0 49-118 03/28/23 15:382-Fluorophenol (S)38.7 22-84 03/28/23 15:38Nitrobenzene-d5 (S)73.2 43-123 03/28/23 15:384-Terphenyl-d14 (S)101 49-151 03/28/23 15:382,4,6-Tribromophenol (S)64.8 31-144 03/28/23 15:38Phenol-d5 (S)25.0 10-63 LCS-V31217 LCSD-V31217Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 33.2 66.455.227.650.0µg/LAcenaphthene 47-145 18.4 20.0 34.0 68.057.828.950.0µg/LAcenaphthylene 33-145 16.2 20.0 43.6 87.272.036.050.0µg/LAnthracene 27-133 19.0 20.0 9.14 18.217.68.8250.0µg/LBenzidine 15-150 3.5 20.0 42.9 85.869.234.650.0µg/LBenzo(a)anthracene 33-143 21.4*20.0 45.8 91.673.836.950.0µg/LBenzo(a)pyrene 17-163 21.5*20.0 42.7 85.468.034.050.0µg/LBenzo(b)fluoranthene 24-159 22.6*20.0 39.7 79.464.032.050.0µg/LBenzo(g,h,i)perylene 10-219 21.4*20.0 42.4 84.867.433.750.0µg/LBenzo(k)fluoranthene 11-162 22.8*20.0 16.4 32.826.413.250.0µg/LBenzoic Acid 10-125 21.6*20.0 Page 21 of 32* QC Fail Date:04/07/2023 04:51 PM Page 78 of 91 Quality Control Data 23-081-0100Report 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 V31390QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31217 LCS-V31217 LCSD-V31217Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 27.5 55.048.424.250.0µg/LBenzyl alcohol 16-107 12.7 20.0 33.6 67.259.629.850.0µg/LBis(2-Chloroethoxy)methane 33-184 11.9 20.0 26.7 53.446.823.450.0µg/LBis(2-Chloroethyl)ether 12-158 13.1 20.0 26.5 53.046.223.150.0µg/LBis(2-Chloroisopropyl)ether 36-166 13.7 20.0 46.5 93.074.437.250.0µg/LBis(2-ethylhexyl)phthalate 10-158 22.2*20.0 38.2 76.464.632.350.0µg/L4-Bromophenyl phenyl ether 53-127 16.7 20.0 46.9 93.876.838.450.0µg/LButyl benzyl phthalate 10-152 19.9 20.0 35.3 70.660.030.050.0µg/L4-Chloro-3-methylphenol 22-147 16.2 20.0 30.1 60.251.8*25.950.0µg/L2-Chloronaphthalene 60-118 15.0 20.0 26.4 52.847.023.550.0µg/L2-Chlorophenol 23-134 11.6 20.0 35.0 70.060.230.150.0µg/L4-Chlorophenyl phenyl ether 25-158 15.0 20.0 42.4 84.869.234.650.0µg/LChrysene 17-168 20.2*20.0 42.0 84.068.434.250.0µg/LDibenz(a,h)anthracene 10-227 20.4*20.0 34.8 69.658.429.250.0µg/LDibenzofuran 39-114 17.5 20.0 22.6 45.238.019.050.0µg/L1,2-Dichlorobenzene 32-129 17.3 20.0 21.8 43.637.018.550.0µg/L1,3-Dichlorobenzene 20-124 16.3 20.0 21.6 43.238.219.150.0µg/L1,4-Dichlorobenzene 20-124 12.2 20.0 41.5 83.065.832.950.0µg/L3,3'-Dichlorobenzidine 10-262 23.1*20.0 33.2 66.457.828.950.0µg/L2,4-Dichlorophenol 39-135 13.8 20.0 39.6 79.267.033.550.0µg/LDiethyl phthalate 10-114 16.6 20.0 39.2 78.466.033.050.0µg/LDimethyl phthalate 10-112 17.1 20.0 42.5 85.071.235.650.0µg/L2,4-Dimethylphenol 32-119 17.6 20.0 48.6 97.280.240.150.0µg/LDi-n-butyl phthalate 10-118 19.1 20.0 42.0 84.067.433.750.0µg/L4,6-Dinitro-2-methylphenol 10-181 21.9*20.0 38.0 76.065.232.650.0µg/L2,4-Dinitrophenol 10-191 15.2 20.0 39.3 78.665.632.850.0µg/L2,4-Dinitrotoluene 39-139 18.0 20.0 Page 22 of 32* QC Fail Date:04/07/2023 04:51 PM Page 79 of 91 Quality Control Data 23-081-0100Report 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 V31390QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31217 LCS-V31217 LCSD-V31217Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 38.6 77.263.831.950.0µg/L2,6-Dinitrotoluene 50-158 19.0 20.0 47.1 94.275.237.650.0µg/LDi-n-Octyl Phthalate 10-146 22.4*20.0 40.7 81.466.833.450.0µg/LFluoranthene 26-137 19.7 20.0 36.9 73.861.030.550.0µg/LFluorene 59-121 18.9 20.0 36.7 73.461.630.850.0µg/LHexachlorobenzene 10-152 17.4 20.0 25.0 50.041.020.550.0µg/LHexachlorobutadiene 24-116 19.7 20.0 25.4 50.842.821.450.0µg/LHexachlorocyclopentadiene 32-117 17.0 20.0 21.5 43.035.4*17.750.0µg/LHexachloroethane 40-113 19.3 20.0 40.7 81.465.432.750.0µg/LIndeno(1,2,3-cd)pyrene 10-171 21.7*20.0 31.4 62.855.627.850.0µg/LIsophorone 21-196 12.1 20.0 26.9 53.846.823.450.0µg/L1-Methylnaphthalene 40-135 13.9 20.0 27.3 54.646.623.350.0µg/L2-Methylnaphthalene 18-121 15.8 20.0 26.6 53.246.623.350.0µg/LNaphthalene 21-133 13.2 20.0 29.0 58.050.825.450.0µg/LNitrobenzene 35-180 13.2 20.0 30.0 60.051.225.650.0µg/L2-Nitrophenol 29-182 15.8 20.0 20.4 40.832.616.350.0µg/L4-Nitrophenol 10-132 22.3*20.0 47.3 94.680.440.250.0µg/LN-Nitrosodiphenylamine 69-152 16.2 20.0 31.8 63.655.627.850.0µg/LN-Nitroso-di-n-propylamine 10-230 13.4 20.0 46.9 93.875.437.750.0µg/LPentachlorophenol 14-176 21.7*20.0 41.7 83.468.034.050.0µg/LPhenanthrene 54-120 20.3*20.0 13.4 26.823.411.750.0µg/LPhenol 10-112 13.5 20.0 43.5 87.071.035.550.0µg/LPyrene 52-115 20.2*20.0 24.3 48.641.2*20.650.0µg/L1,2,4-Trichlorobenzene 44-142 16.4 20.0 34.6 69.258.029.050.0µg/L2,4,6-Trichlorophenol 37-144 17.6 20.0 69.662.62-Fluorobiphenyl (S)49-118 31.427.42-Fluorophenol (S)22-84 Page 23 of 32* QC Fail Date:04/07/2023 04:51 PM Page 80 of 91 Quality Control Data 23-081-0100Report 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 V31390QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31217 LCS-V31217 LCSD-V31217Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 59.854.4Nitrobenzene-d5 (S)43-123 92.475.24-Terphenyl-d14 (S)49-151 61.052.62,4,6-Tribromophenol (S)31-144 20.918.1Phenol-d5 (S)10-63 Page 24 of 32Date:04/07/2023 04:51 PM Page 81 of 91 Quality Control Data 23-081-0100Report 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 V31440QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31295 Associated Lab Samples: 91859, 91860, 91864 LRB-V31295 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/29/23 16:182.000.302<0.302µg/LAcenaphthene 03/29/23 16:182.000.297<0.297µg/LAcenaphthylene 03/29/23 16:182.000.836<0.836µg/LAnthracene 03/29/23 16:1810.01.32<1.32µg/LBenzidine 03/29/23 16:182.000.637<0.637µg/LBenzo(a)anthracene 03/29/23 16:182.001.02<1.02µg/LBenzo(a)pyrene 03/29/23 16:185.002.49<2.49µg/LBenzo(b)fluoranthene 03/29/23 16:185.001.01<1.01µg/LBenzo(g,h,i)perylene 03/29/23 16:185.001.99<1.99µg/LBenzo(k)fluoranthene 03/29/23 16:1810.01.10<1.10µg/LBenzoic Acid 03/29/23 16:185.000.684<0.684µg/LBenzyl alcohol 03/29/23 16:185.000.468<0.468µg/LBis(2-Chloroethoxy)methane 03/29/23 16:185.001.04<1.04µg/LBis(2-Chloroethyl)ether 03/29/23 16:185.001.08<1.08µg/LBis(2-Chloroisopropyl)ether 03/29/23 16:1810.03.46<3.46µg/LBis(2-ethylhexyl)phthalate 03/29/23 16:185.001.11<1.11µg/L4-Bromophenyl phenyl ether 03/29/23 16:185.001.83<1.83µg/LButyl benzyl phthalate 03/29/23 16:185.001.18<1.18µg/L4-Chloro-3-methylphenol 03/29/23 16:1820.07.38<7.38µg/L2-Chloronaphthalene 03/29/23 16:1810.00.938<0.938µg/L2-Chlorophenol 03/29/23 16:185.001.71<1.71µg/L4-Chlorophenyl phenyl ether 03/29/23 16:182.000.405<0.405µg/LChrysene 03/29/23 16:182.000.434<0.434µg/LDibenz(a,h)anthracene 03/29/23 16:185.000.856<0.856µg/LDibenzofuran 03/29/23 16:185.002.00<2.00µg/L1,2-Dichlorobenzene 03/29/23 16:185.002.00<2.00µg/L1,3-Dichlorobenzene 03/29/23 16:185.002.05<2.05µg/L1,4-Dichlorobenzene Page 25 of 32Date:04/07/2023 04:51 PM Page 82 of 91 Quality Control Data 23-081-0100Report 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 V31440QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31295 Associated Lab Samples: 91859, 91860, 91864 LRB-V31295 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/29/23 16:185.001.89<1.89µg/L3,3'-Dichlorobenzidine 03/29/23 16:1810.01.46<1.46µg/L2,4-Dichlorophenol 03/29/23 16:185.000.745<0.745µg/LDiethyl phthalate 03/29/23 16:185.000.939<0.939µg/LDimethyl phthalate 03/29/23 16:1820.01.57<1.57µg/L2,4-Dimethylphenol 03/29/23 16:185.002.06<2.06µg/LDi-n-butyl phthalate 03/29/23 16:1810.02.07<2.07µg/L4,6-Dinitro-2-methylphenol 03/29/23 16:1810.01.92<1.92µg/L2,4-Dinitrophenol 03/29/23 16:185.001.11<1.11µg/L2,4-Dinitrotoluene 03/29/23 16:185.000.809<0.809µg/L2,6-Dinitrotoluene 03/29/23 16:185.001.65<1.65µg/LDi-n-Octyl Phthalate 03/29/23 16:182.000.250<0.250µg/LFluoranthene 03/29/23 16:182.000.807<0.807µg/LFluorene 03/29/23 16:185.000.979<0.979µg/LHexachlorobenzene 03/29/23 16:185.002.73<2.73µg/LHexachlorobutadiene 03/29/23 16:185.002.05<2.05µg/LHexachlorocyclopentadiene 03/29/23 16:185.001.76<1.76µg/LHexachloroethane 03/29/23 16:182.000.477<0.477µg/LIndeno(1,2,3-cd)pyrene 03/29/23 16:185.000.444<0.444µg/LIsophorone 03/29/23 16:182.001.14<1.14µg/L1-Methylnaphthalene 03/29/23 16:182.000.666<0.666µg/L2-Methylnaphthalene 03/29/23 16:182.000.728<0.728µg/LNaphthalene 03/29/23 16:185.000.905<0.905µg/LNitrobenzene 03/29/23 16:185.000.493<0.493µg/L2-Nitrophenol 03/29/23 16:1810.01.23<1.23µg/L4-Nitrophenol 03/29/23 16:185.001.10<1.10µg/LN-Nitrosodiphenylamine 03/29/23 16:185.000.641<0.641µg/LN-Nitroso-di-n-propylamine Page 26 of 32Date:04/07/2023 04:51 PM Page 83 of 91 Quality Control Data 23-081-0100Report 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 V31440QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31295 Associated Lab Samples: 91859, 91860, 91864 LRB-V31295 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/29/23 16:185.001.43<1.43µg/LPentachlorophenol 03/29/23 16:182.000.428<0.428µg/LPhenanthrene 03/29/23 16:185.000.651<0.651µg/LPhenol 03/29/23 16:182.000.434<0.434µg/LPyrene 03/29/23 16:185.002.21<2.21µg/L1,2,4-Trichlorobenzene 03/29/23 16:185.001.32<1.32µg/L2,4,6-Trichlorophenol 03/29/23 16:182-Fluorobiphenyl (S)81.4 49-118 03/29/23 16:182-Fluorophenol (S)38.5 22-84 03/29/23 16:18Nitrobenzene-d5 (S)72.0 43-123 03/29/23 16:184-Terphenyl-d14 (S)102 49-151 03/29/23 16:182,4,6-Tribromophenol (S)63.1 31-144 03/29/23 16:18Phenol-d5 (S)25.1 10-63 LCS-V31295 LCSD-V31295Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 39.6 79.280.840.450.0µg/LAcenaphthene 47-145 2.0 20.0 40.2 80.484.242.150.0µg/LAcenaphthylene 33-145 4.6 20.0 47.5 95.098.249.150.0µg/LAnthracene 27-133 3.3 20.0 17.7 35.435.817.950.0µg/LBenzidine 15-150 1.1 20.0 44.6 89.292.246.150.0µg/LBenzo(a)anthracene 33-143 3.3 20.0 48.9 97.810150.450.0µg/LBenzo(a)pyrene 17-163 3.0 20.0 43.8 87.690.445.250.0µg/LBenzo(b)fluoranthene 24-159 3.1 20.0 42.0 84.087.243.650.0µg/LBenzo(g,h,i)perylene 10-219 3.7 20.0 45.1 90.297.048.550.0µg/LBenzo(k)fluoranthene 11-162 7.2 20.0 18.5 37.035.817.950.0µg/LBenzoic Acid 10-125 3.2 20.0 Page 27 of 32Date:04/07/2023 04:51 PM Page 84 of 91 Quality Control Data 23-081-0100Report 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 V31440QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31295 LCS-V31295 LCSD-V31295Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 35.2 70.471.835.950.0µg/LBenzyl alcohol 16-107 1.9 20.0 40.7 81.484.442.250.0µg/LBis(2-Chloroethoxy)methane 33-184 3.6 20.0 34.4 68.871.035.550.0µg/LBis(2-Chloroethyl)ether 12-158 3.1 20.0 35.4 70.872.036.050.0µg/LBis(2-Chloroisopropyl)ether 36-166 1.6 20.0 49.4 98.810351.550.0µg/LBis(2-ethylhexyl)phthalate 10-158 4.1 20.0 41.7 83.486.843.450.0µg/L4-Bromophenyl phenyl ether 53-127 3.9 20.0 51.9 10410954.450.0µg/LButyl benzyl phthalate 10-152 4.7 20.0 40.2 80.482.241.150.0µg/L4-Chloro-3-methylphenol 22-147 2.2 20.0 37.2 74.477.438.750.0µg/L2-Chloronaphthalene 60-118 3.9 20.0 34.2 68.469.634.850.0µg/L2-Chlorophenol 23-134 1.7 20.0 40.0 80.083.241.650.0µg/L4-Chlorophenyl phenyl ether 25-158 3.9 20.0 43.7 87.491.845.950.0µg/LChrysene 17-168 4.9 20.0 44.2 88.492.846.450.0µg/LDibenz(a,h)anthracene 10-227 4.8 20.0 40.6 81.283.841.950.0µg/LDibenzofuran 39-114 3.1 20.0 28.0 56.057.828.950.0µg/L1,2-Dichlorobenzene 32-129 3.1 20.0 27.4 54.855.027.550.0µg/L1,3-Dichlorobenzene 20-124 0.3 20.0 28.0 56.055.627.850.0µg/L1,4-Dichlorobenzene 20-124 0.7 20.0 42.8 85.688.444.250.0µg/L3,3'-Dichlorobenzidine 10-262 3.2 20.0 39.5 79.081.840.950.0µg/L2,4-Dichlorophenol 39-135 3.4 20.0 45.2 90.493.046.550.0µg/LDiethyl phthalate 10-114 2.8 20.0 44.2 88.491.845.950.0µg/LDimethyl phthalate 10-112 3.7 20.0 50.0 10010452.050.0µg/L2,4-Dimethylphenol 32-119 3.9 20.0 52.2 10410753.650.0µg/LDi-n-butyl phthalate 10-118 2.6 20.0 45.0 90.094.247.150.0µg/L4,6-Dinitro-2-methylphenol 10-181 4.5 20.0 43.1 86.292.046.050.0µg/L2,4-Dinitrophenol 10-191 6.5 20.0 43.7 87.492.246.150.0µg/L2,4-Dinitrotoluene 39-139 5.3 20.0 Page 28 of 32Date:04/07/2023 04:51 PM Page 85 of 91 Quality Control Data 23-081-0100Report 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 V31440QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31295 LCS-V31295 LCSD-V31295Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 42.6 85.288.644.350.0µg/L2,6-Dinitrotoluene 50-158 3.9 20.0 51.2 10210853.950.0µg/LDi-n-Octyl Phthalate 10-146 5.1 20.0 42.8 85.687.643.850.0µg/LFluoranthene 26-137 2.3 20.0 42.6 85.288.844.450.0µg/LFluorene 59-121 4.1 20.0 38.8 77.680.440.250.0µg/LHexachlorobenzene 10-152 3.5 20.0 29.5 59.059.229.650.0µg/LHexachlorobutadiene 24-116 0.3 20.0 31.4 62.863.231.650.0µg/LHexachlorocyclopentadiene 32-117 0.6 20.0 27.1 54.255.427.750.0µg/LHexachloroethane 40-113 2.1 20.0 41.5 83.086.243.150.0µg/LIndeno(1,2,3-cd)pyrene 10-171 3.7 20.0 38.3 76.678.839.450.0µg/LIsophorone 21-196 2.8 20.0 32.2 64.466.833.450.0µg/L1-Methylnaphthalene 40-135 3.6 20.0 32.6 65.268.234.150.0µg/L2-Methylnaphthalene 18-121 4.4 20.0 32.7 65.467.233.650.0µg/LNaphthalene 21-133 2.7 20.0 36.5 73.074.237.150.0µg/LNitrobenzene 35-180 1.6 20.0 36.3 72.676.438.250.0µg/L2-Nitrophenol 29-182 5.1 20.0 23.1 46.247.223.650.0µg/L4-Nitrophenol 10-132 2.1 20.0 53.4 10710954.750.0µg/LN-Nitrosodiphenylamine 69-152 2.4 20.0 40.3 80.680.840.450.0µg/LN-Nitroso-di-n-propylamine 10-230 0.2 20.0 49.7 99.410351.750.0µg/LPentachlorophenol 14-176 3.9 20.0 45.1 90.292.246.150.0µg/LPhenanthrene 54-120 2.1 20.0 16.7 33.433.016.550.0µg/LPhenol 10-112 1.2 20.0 45.6 91.295.847.950.0µg/LPyrene 52-115 4.9 20.0 29.3 58.659.829.950.0µg/L1,2,4-Trichlorobenzene 44-142 2.0 20.0 39.8 79.682.441.250.0µg/L2,4,6-Trichlorophenol 37-144 3.4 20.0 83.689.82-Fluorobiphenyl (S)49-118 40.041.62-Fluorophenol (S)22-84 Page 29 of 32Date:04/07/2023 04:51 PM Page 86 of 91 Quality Control Data 23-081-0100Report 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 V31440QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V31295 LCS-V31295 LCSD-V31295Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 75.280.2Nitrobenzene-d5 (S)43-123 95.21024-Terphenyl-d14 (S)49-151 66.668.52,4,6-Tribromophenol (S)31-144 25.826.3Phenol-d5 (S)10-63 Page 30 of 32Date:04/07/2023 04:51 PM Page 87 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Massachusetts EPH MADEP-EPH V31552QC Analytical Batch(es): Analysis Method: Analysis Description: MAEPH (Prep) QC Prep:V31458 Associated Lab Samples: 91859, 91860, 91862 LRB-V31458 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/03/23 10:2935028.2<28.2µg/LAliphatic C9-C18 04/03/23 10:29500124<124µg/LAliphatic C19-C36 04/03/23 10:2925061.2<61.2µg/LAromatic C11-C22 04/03/23 10:292-Fluorobiphenyl (S)102 40-140 04/03/23 10:292-Bromonaphthalene (S)I 40-140 04/03/23 10:29Chlorooctadecane (S)103 40-140 04/03/23 10:29OTP Surrogate (S)105 40-140 LCS-V31458 LCSD-V31458Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1930 322*277*1660600µg/LAliphatic C9-C18 40-140 15.0 50.0 4400 550*473*3780800µg/LAliphatic C19-C36 40-140 15.1 50.0 2410 142*261*44301700µg/LAromatic C11-C22 40-140 59.0*50.0 90.784.72-Fluorobiphenyl (S)40-140 191*181*2-Bromonaphthalene (S)40-140 78.364.6Chlorooctadecane (S)40-140 73.667.5OTP Surrogate (S)40-140 Page 31 of 32* QC Fail Date:04/07/2023 04:51 PM Page 88 of 91 Quality Control Data 23-081-0100Report No: Project Description: Client ID:Hart & Hickman (Charlotte) DOT-476 QC Prep Batch Method: Massachusetts VPH MADEP-VPH V31198QC Analytical Batch(es): Analysis Method: Analysis Description: MAVPH (Prep) QC Prep:V31197 Associated Lab Samples: 91859, 91860, 91862 LRB-V31197 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/24/23 19:1350.011.5<11.5µg/LAliphatic C5-C8 03/24/23 19:1350.025.8<25.8µg/LAliphatic C9-C12 03/24/23 19:1350.04.02<4.02µg/LAromatic C9-C10 03/24/23 19:132,5-Dibromotoluene (FID) (S)91.0 70-130 03/24/23 19:132,5-Dibromotoluene (PID) (S)79.6 70-130 LCS-V31197 LCSD-V31197Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 303 101102306300µg/LAliphatic C5-C8 70-130 0.9 50.0 358 119116349300µg/LAliphatic C9-C12 70-130 2.5 50.0 103 103104104100µg/LAromatic C9-C10 70-130 0.9 50.0 85.476.92,5-Dibromotoluene (FID) (S)70-130 80.776.92,5-Dibromotoluene (PID) (S)70-130 Page 32 of 32Date:04/07/2023 04:51 PM Page 89 of 91 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-081-0100 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT-15 4.1 C 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:Angela D Overcash Date & Time:03/22/2023 13:35:10 Special precautions or instructions included? Comments: Page 90 of 91 Page 91 of 91 Appendix C Groundwater Sampling Forms 6?%%%0DVWHU7HPSODWHV?)RUPV)RUPV?/RZ)ORZ*URXQGZDWHU6DPSOLQJ)RUPSGI /DVW8SGDWHG Job No: Well ID: Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate (mg/l)(oC)(PS/cm)(SU)(mV)(NTU) Stabilization Criteria 3ULPDU\6HFRQGDU\ LOW-FLOW GROUNDWATER Other Sample Parameters:___________________________________________________________________________________________________ Sampled at:____________________________Parameters taken with: Sample Delivered to:________________________________ by ______________________________________ at ____________________________. Field Filtration: )Yes  No If yes, which sample parameters were field filtered:_____________________________________________ Sample Parameter Containers (Types, Number of Containers, Preservatives): SAMPLING RECORDWell Location: Facility Name:Date: Top of Casing Elevation (ft msl):_______________ Casing Material:_______________ Volume of Water Per Well Volume: Total Well Depth (ft :________________Depth to Water (ft  :___________________________Well Diameter: Sampling Personnel:___________________________BBBBBBBBBBBBBBBBBBBBBBBBBB6FUHHQ,QWHUYDO IW  BBBBBBBBBBBBBBBBBBBBBBBBBBB Type of Pump:____________________________ Tubing Material:____________________________ Pump/Tubing set at:_______________ft Weather Conditions:_______________________________________________________NOTES: *5281':$7(R SAMPLING PARAMETERS 6WDELOL]DWLRQFULWHULDJXLGHOLQHVIURPWKH(3$6(6'2SHUDWLQJ 3URFHGXUHIRU*URXQGZDWHU6DPSOLQJGDWHG$SULO 7XUE 178VIRUPHWDOV :DWHU/HYHOVOLJKWRUVWDEOH GUDZGRZQGXULQJSXUJLQJ  S+XQLW 6&RQG253P9 '2PJ/DOT-476 DOT Maintenance Facilit Robbinsville, NC 3/21/23 98.97 12 DJH 7 Sunny, 55 F Be in um in at 1340 13:45 13:50 13:55 14:00 14:05 14:10 4.90 4.95 4.97 4.99 5.00 5.00 1 L 2 L 3 L 4 L 5 L 6 L 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 2.45 1.74 1.54 1.38 1.30 1.21 16.7 16.6 16.5 16.5 16.4 16.4 513.0 515.6 516.1 513.8 513.0 513.3 6.98 6.97 6.94 6.93 6.94 6.97 -48.0 -73.3 -82.9 -92.1 -97.3 -101.0 0.63 0.69 0.46 0.18 0.16 0.26 N/A YSI-003 and HACH-003 x3 40 mL VOAs 6200 VOCs , x2 1-L ambers SVOCs 625 , x3 40 mL VOAs MADEP VPH , and x2 1-L ambers MADEP EPH Peristaltic PVC 2 inch 14:10 Wa oint MW-1 2 12 Pol eth lene TOC 4.60 3/20/23TOCTOC gallons 6?%%%0DVWHU7HPSODWHV?)RUPV)RUPV?/RZ)ORZ*URXQGZDWHU6DPSOLQJ)RUPSGI /DVW8SGDWHG Job No: Well ID: Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate (mg/l)(oC)(PS/cm)(SU)(mV)(NTU) Stabilization Criteria 3ULPDU\6HFRQGDU\ LOW-FLOW GROUNDWATER Other Sample Parameters:___________________________________________________________________________________________________ Sampled at:____________________________Parameters taken with: Sample Delivered to:________________________________ by ______________________________________ at ____________________________. Field Filtration: )Yes  No If yes, which sample parameters were field filtered:_____________________________________________ Sample Parameter Containers (Types, Number of Containers, Preservatives): SAMPLING RECORDWell Location: Facility Name:Date: Top of Casing Elevation (ft msl):_______________ Casing Material:_______________ Volume of Water Per Well Volume: Total Well Depth (ft :________________Depth to Water (ft  :___________________________Well Diameter: Sampling Personnel:___________________________BBBBBBBBBBBBBBBBBBBBBBBBBB6FUHHQ,QWHUYDO IW  BBBBBBBBBBBBBBBBBBBBBBBBBBB Type of Pump:____________________________ Tubing Material:____________________________ Pump/Tubing set at:_______________ft Weather Conditions:_______________________________________________________NOTES: *5281':$7(R SAMPLING PARAMETERS 6WDELOL]DWLRQFULWHULDJXLGHOLQHVIURPWKH(3$6(6'2SHUDWLQJ 3URFHGXUHIRU*URXQGZDWHU6DPSOLQJGDWHG$SULO 7XUE 178VIRUPHWDOV :DWHU/HYHOVOLJKWRUVWDEOH GUDZGRZQGXULQJSXUJLQJ  S+XQLW 6&RQG253P9 '2PJ/DOT-476 DOT Maintenance Facilit Robbinsville, NC 3/21/23 98.63 12 DJH 7 Sunny, 57 F Be in um in at 1455 15:00 15:05 15:10 15:15 15:20 15:25 4.25 4.25 4.25 4.25 4.25 4.25 1 L 2 L 3 L 4 L 5 L 6 L 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 1.43 1.30 1.30 1.66 1.80 1.80 16.2 16.0 15.9 15.9 15.9 15.9 255.2 251.2 247.4 248.4 249.2 249.1 6.03 5.93 5.91 5.90 5.91 5.90 72.2 77.4 76.8 72.7 67.5 65.6 0.51 0.62 0.41 0.36 0.64 0.40 N/A YSI-003 and HACH-003 x3 40 mL VOAs 6200 VOCs , x2 1-L ambers SVOCs 625 , x3 40 mL VOAs MADEP VPH , and x2 1-L ambers MADEP EPH Peristaltic PVC 2 inch 15:25 Wa oint MW-2 2 12 Pol eth lene TOC 4.07 3/20/23TOCTOC gallons 6?%%%0DVWHU7HPSODWHV?)RUPV)RUPV?/RZ)ORZ*URXQGZDWHU6DPSOLQJ)RUPSGI /DVW8SGDWHG Job No: Well ID: Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate (mg/l)(oC)(PS/cm)(SU)(mV)(NTU) Stabilization Criteria 3ULPDU\6HFRQGDU\ LOW-FLOW GROUNDWATER Other Sample Parameters:___________________________________________________________________________________________________ Sampled at:____________________________Parameters taken with: Sample Delivered to:________________________________ by ______________________________________ at ____________________________. Field Filtration: )Yes  No If yes, which sample parameters were field filtered:_____________________________________________ Sample Parameter Containers (Types, Number of Containers, Preservatives): SAMPLING RECORDWell Location: Facility Name:Date: Top of Casing Elevation (ft msl):_______________ Casing Material:_______________ Volume of Water Per Well Volume: Total Well Depth (ft :________________Depth to Water (ft  :___________________________Well Diameter: Sampling Personnel:___________________________BBBBBBBBBBBBBBBBBBBBBBBBBB6FUHHQ,QWHUYDO IW  BBBBBBBBBBBBBBBBBBBBBBBBBBB Type of Pump:____________________________ Tubing Material:____________________________ Pump/Tubing set at:_______________ft Weather Conditions:_______________________________________________________NOTES: *5281':$7(R SAMPLING PARAMETERS 6WDELOL]DWLRQFULWHULDJXLGHOLQHVIURPWKH(3$6(6'2SHUDWLQJ 3URFHGXUHIRU*URXQGZDWHU6DPSOLQJGDWHG$SULO 7XUE 178VIRUPHWDOV :DWHU/HYHOVOLJKWRUVWDEOH GUDZGRZQGXULQJSXUJLQJ  S+XQLW 6&RQG253P9 '2PJ/DOT-476 DOT Maintenance Facilit Robbinsville, NC 3/21/23 98.41 12 DJH 7 Sunny, 20s F Be in um in at 0855 09:00 09:05 09:10 09:15 09:20 09:25 09:30 09:35 4.95 4.95 4.95 4.95 4.95 4.95 4.95 4.95 1 L 2 L 3 L 4 L 5 L 6 L 7 L 8 L 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 1.41 0.97 0.56 0.82 1.67 2.25 2.26 2.14 11.9 13.0 13.2 13.5 13.7 13.9 13.8 14.1 384.3 386.9 386.5 385.3 385.3 384.8 384.1 383.9 6.43 6.59 6.55 6.53 6.51 6.51 6.51 6.50 15.4 -41.0 -54.2 -63.6 -69.3 -74.5 -76.8 -78.9 18.40 10.00 8.51 8.15 8.90 5.83 5.21 2.80 N/A YSI-003 and HACH-003 x3 40 mL VOAs 6200 VOCs , x2 1-L ambers SVOCs 625 , Peristaltic PVC 2 inch 09:35 Wa oint MW-3 2 12 Pol eth lene TOC 4.85 3/20/23TOCTOC gallons 6?%%%0DVWHU7HPSODWHV?)RUPV)RUPV?/RZ)ORZ*URXQGZDWHU6DPSOLQJ)RUPSGI /DVW8SGDWHG Job No: Well ID: Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate (mg/l)(oC)(PS/cm)(SU)(mV)(NTU) Stabilization Criteria 3ULPDU\6HFRQGDU\ LOW-FLOW GROUNDWATER Other Sample Parameters:___________________________________________________________________________________________________ Sampled at:____________________________Parameters taken with: Sample Delivered to:________________________________ by ______________________________________ at ____________________________. Field Filtration: )Yes  No If yes, which sample parameters were field filtered:_____________________________________________ Sample Parameter Containers (Types, Number of Containers, Preservatives): SAMPLING RECORDWell Location: Facility Name:Date: Top of Casing Elevation (ft msl):_______________ Casing Material:_______________ Volume of Water Per Well Volume: Total Well Depth (ft :________________Depth to Water (ft  :___________________________Well Diameter: Sampling Personnel:___________________________BBBBBBBBBBBBBBBBBBBBBBBBBB6FUHHQ,QWHUYDO IW  BBBBBBBBBBBBBBBBBBBBBBBBBBB Type of Pump:____________________________ Tubing Material:____________________________ Pump/Tubing set at:_______________ft Weather Conditions:_______________________________________________________NOTES: *5281':$7(R SAMPLING PARAMETERS 6WDELOL]DWLRQFULWHULDJXLGHOLQHVIURPWKH(3$6(6'2SHUDWLQJ 3URFHGXUHIRU*URXQGZDWHU6DPSOLQJGDWHG$SULO 7XUE 178VIRUPHWDOV :DWHU/HYHOVOLJKWRUVWDEOH GUDZGRZQGXULQJSXUJLQJ  S+XQLW 6&RQG253P9 '2PJ/DOT-476 DOT Maintenance Facilit Robbinsville, NC 3/21/23 97.64 12 DJH 7 Sunny, 49 F Be in um in at 15:35 15:40 15:45 15:50 15:55 16:00 16:05 16:10 4.43 4.43 4.43 4.44 4.44 4.44 4.44 1 L 2 L 3 L 4 L 5 L 6 L 7 L 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 0.81 0.43 0.55 1.89 2.38 2.52 2.46 14.9 14.8 14.6 14.6 14.4 14.5 14.5 672.0 673.0 672.0 671.0 672.0 672.0 673.0 6.16 6.15 6.12 6.17 6.17 6.17 6.14 45.6 18.8 5.1 -1.1 -4.8 -9.1 -11.8 0.85 0.70 0.56 2.09 0.71 0.78 0.37 N/A YSI-003 and HACH-003 x3 40 mL VOAs 6200 VOCs , x2 1-L ambers SVOCs 625 , x3 40 mL VOAs MADEP VPH , and x2 1-L ambers MADEP EPH Peristaltic PVC 2 inch 16:10 Wa oint MW-4 2 12 Pol eth lene TOC 4.39 3/20/23TOCTOC gallons 6?%%%0DVWHU7HPSODWHV?)RUPV)RUPV?/RZ)ORZ*URXQGZDWHU6DPSOLQJ)RUPSGI /DVW8SGDWHG Job No: Well ID: Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate (mg/l)(oC)(PS/cm)(SU)(mV)(NTU) Stabilization Criteria 3ULPDU\6HFRQGDU\ LOW-FLOW GROUNDWATER Other Sample Parameters:___________________________________________________________________________________________________ Sampled at:____________________________Parameters taken with: Sample Delivered to:________________________________ by ______________________________________ at ____________________________. Field Filtration: )Yes  No If yes, which sample parameters were field filtered:_____________________________________________ Sample Parameter Containers (Types, Number of Containers, Preservatives): SAMPLING RECORDWell Location: Facility Name:Date: Top of Casing Elevation (ft msl):_______________ Casing Material:_______________ Volume of Water Per Well Volume: Total Well Depth (ft :________________Depth to Water (ft  :___________________________Well Diameter: Sampling Personnel:___________________________BBBBBBBBBBBBBBBBBBBBBBBBBB6FUHHQ,QWHUYDO IW  BBBBBBBBBBBBBBBBBBBBBBBBBBB Type of Pump:____________________________ Tubing Material:____________________________ Pump/Tubing set at:_______________ft Weather Conditions:_______________________________________________________NOTES: *5281':$7(R SAMPLING PARAMETERS 6WDELOL]DWLRQFULWHULDJXLGHOLQHVIURPWKH(3$6(6'2SHUDWLQJ 3URFHGXUHIRU*URXQGZDWHU6DPSOLQJGDWHG$SULO 7XUE 178VIRUPHWDOV :DWHU/HYHOVOLJKWRUVWDEOH GUDZGRZQGXULQJSXUJLQJ  S+XQLW 6&RQG253P9 '2PJ/DOT-476 DOT Maintenance Facilit Robbinsville, NC 3/20/23 99.80 12 DJH 7 Sunny, 49 F Be in um in at 14:40 14:45 14:50 14:55 15:00 15:05 3.50 3.50 3.50 3.50 3.50 1 L 2 L 3 L 4 L 5 L 200 mL/min 200 mL/min 200 mL/min 200 mL/min 200 mL/min 6.05 5.75 5.43 5.45 5.40 12.7 12.7 12.7 12.6 12.6 588.3 592.2 598.4 602.2 602.1 6.65 6.02 5.92 5.93 5.91 156.7 175.6 181.5 183.0 182.8 1.20 1.08 0.87 0.63 0.68 N/A YSI-003 and HACH-003 x3 40 mL VOAs 6200 VOCs , x2 1-L ambers SVOCs 625 , Peristaltic PVC 2 inch 15:05 Wa oint MW-5 2 12 Pol eth lene TOC 3.45 3/20/23TOCTOC gallons 6?%%%0DVWHU7HPSODWHV?)RUPV)RUPV?/RZ)ORZ*URXQGZDWHU6DPSOLQJ)RUPSGI /DVW8SGDWHG Job No: Well ID: Water Volume Pumping DO Temp. S. Cond. pH ORP Turbidity Time Level Pumped Rate (mg/l)(oC)(PS/cm)(SU)(mV)(NTU) Stabilization Criteria 3ULPDU\6HFRQGDU\ LOW-FLOW GROUNDWATER Other Sample Parameters:___________________________________________________________________________________________________ Sampled at:____________________________Parameters taken with: Sample Delivered to:________________________________ by ______________________________________ at ____________________________. Field Filtration: )Yes  No If yes, which sample parameters were field filtered:_____________________________________________ Sample Parameter Containers (Types, Number of Containers, Preservatives): SAMPLING RECORDWell Location: Facility Name:Date: Top of Casing Elevation (ft msl):_______________ Casing Material:_______________ Volume of Water Per Well Volume: Total Well Depth (ft :________________Depth to Water (ft  :___________________________Well Diameter: Sampling Personnel:___________________________BBBBBBBBBBBBBBBBBBBBBBBBBB6FUHHQ,QWHUYDO IW  BBBBBBBBBBBBBBBBBBBBBBBBBBB Type of Pump:____________________________ Tubing Material:____________________________ Pump/Tubing set at:_______________ft Weather Conditions:_______________________________________________________NOTES: *5281':$7(R SAMPLING PARAMETERS 6WDELOL]DWLRQFULWHULDJXLGHOLQHVIURPWKH(3$6(6'2SHUDWLQJ 3URFHGXUHIRU*URXQGZDWHU6DPSOLQJGDWHG$SULO 7XUE 178VIRUPHWDOV :DWHU/HYHOVOLJKWRUVWDEOH GUDZGRZQGXULQJSXUJLQJ  S+XQLW 6&RQG253P9 '2PJ/DOT-476 DOT Maintenance Facilit Robbinsville, NC 3/21/23 99.27 50 DJH 45 Sunny, 40 F Be in um in at 10:00 10:05 10:10 10:15 10:20 10:25 10:30 10:35 5.55 6.12 6.49 6.71 6.98 7.15 7.26 1 L 2 L 2.5 L 3.0 L 3.5 L 4.0 L 4.5 L 200 mL/min 200 mL/min 100 mL/min 100 mL/min 100 mL/min 100 mL/min 100 mL/min 5.34 2.04 1.13 0.85 0.70 0.61 0.57 15.4 15.8 15.1 14.7 15.0 14.3 14.4 215.2 218.9 217.1 216.3 215.3 210.9 212.1 7.20 7.47 7.66 7.73 7.73 7.71 7.65 -52.9 -92.1 -119.8 -130.9 -135.2 -136.3 -135.4 8.18 5.49 7.17 5.05 1.48 1.45 1.21 N/A YSI-003 and HACH-003 x3 40 mL VOAs 6200 VOCs , x2 1-L ambers SVOCs 625 , Peristaltic PVC 2 inch 10:35 Wa oint DW-1 40 50 Pol eth lene TOC 4.65 3/20/23TOCTOC gallons