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HomeMy WebLinkAboutWS-4579_14873_CA_MRP_20230126Chevron Environmental Management Company Groundwater Monitoring Report – Third Quarter 2022 Former Chevron Facility (Gulf Oil) #205513 600 South Main Street (formerly 500 South Main Street) High Point, North Carolina 27260 Guilford County UST Incident Numbers 14873 Risk Classification: Intermediate Release Information Date Discovered: October 1995 Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release: 5 – 1,000-gallon gasoline tanks (USTs 4, 5, 6, 7, and 8) and 1 – 650-gallon waste oil tank (UST 9); (Incident # 14874 also associated with this property had documented releases from 3 – 6,000-gallon gasoline tanks (USTs 11, 12, and 13) Site latitude: 35°56’56” N (NAD 27) Site Longitude: 80°00’18” W (NAD 27) Location Method: GPS Surveyed Groundwater Monitoring Report – Third Quarter 2022 This document is intended only for the use of the individual or entity for which it was prepared and may contain information that is privileged, confidential and exempt from disclosure under applicable law. Any dissemination, distribution or copying of this document is strictly prohibited. www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR i Groundwater Monitoring Report – Third Quarter 2022 Former Chevron Facility (Gulf Oil) #205513 January 26, 2023 Prepared By: Prepared For: Arcadis G&M of North Carolina, Inc. (Certification C-1869). North Carolina Department of Environmental 3540 Toringdon Way Quality, Division of Waste Management Suite 220 UST Section Charlotte North Carolina 28277 Phone: 704 752 4258 Fax: 704 752 4258 Our Ref: 30064349 ________________________________________ Sherrie Lang Certified Project Manager _______________________________________ Scott Bostian, P.E. #25659 Principal Chemical Engineer Groundwater Monitoring Report – Third Quarter 2022 www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR.docx ii Contents Acronyms and Abbreviations ................................................................................................................................ iv 1 Executive Summary ......................................................................................................................................... 1 2 Site Location and Characterization ............................................................................................................... 1 2.1 Facility Ownership and Well Installation History ................................................................................. 2 3 Receptor Information ...................................................................................................................................... 2 4 Geology and Hydrogeology ............................................................................................................................ 2 4.1 Regional Geology and Hydrogeology ................................................................................................... 2 4.2 Site Geology ............................................................................................................................................. 3 5 Groundwater Monitoring ................................................................................................................................. 3 5.1 Groundwater Gauging ............................................................................................................................. 3 5.2 Groundwater Sampling ........................................................................................................................... 3 5.3 Groundwater Analytical Results ............................................................................................................ 4 6 Investigative Derived Waste ........................................................................................................................... 4 7 Conclusion and Recommendations .............................................................................................................. 4 8 References ....................................................................................................................................................... 5 9 Statements and Certification .......................................................................................................................... 6 Groundwater Monitoring Report – Third Quarter 2022 www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR.docx iii Tables Table 1 UST System Information Table 2 UST Owner/Operator Information Table 3 Groundwater Monitoring Well Construction and Elevation Data Table 4 2022 Sampling Analysis Plan Table 5 Groundwater Analytical Results Figures Figure 1 - Site Location Map Figure 2 - Land Use Map Figure 3 - Site Map Figure 4 - Potentiometric Surface Map July 19-20, 2022 Figure 5 - Groundwater Analytical Map Figure 6 - Dissolved Benzene Isoconcentration Contour Map Figure 7 - Dissolved 1,2-DCA Isoconcentration Contour Map Figure 8 - Dissolved EDB Isoconcentration Contour Map Appendices Regulatory Correspondence Groundwater Sampling Field Logs Laboratory Analytical and Validation Reports Waste Manifest Groundwater Monitoring Report – Third Quarter 2022 www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR.docx iv Acronyms and Abbreviations Arcadis Arcadis U.S., Inc. BBL Blasland, Bouck, and Lee, Inc. bgs below ground surface btoc below top of casing PreCAP Pre-Corrective Action Plan Groundwater Assessment Report COC chemicals of concern CEMC Chevron Environmental Management Company DO dissolved oxygen EDB ethylene dibromide GCL Gross Contaminant Level GEX Geologic Exploration, Inc. Gulf Oil Gulf Oil Company Ilderton Oil Ilderton Oil Company MS/MSD matrix spike/matrix spike duplicate NCDEQ North Carolina Department of Environmental Quality ORP oxygen reduction potential PSH phase-separated hydrocarbon PWR partially weathered rock QA/QC quality assurance/quality control µg/L microgram per liter USEPA United States Environmental Protection Agency USGS United States Geological Survey US Survey United States Survey UST underground storage tank 1,2-DCA 1,2-dichloroethane Groundwater Monitoring Report – Third Quarter 2022 www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR.docx 1 1 Executive Summary On behalf of Chevron Environmental Management Company (CEMC), Arcadis U.S., Inc. (Arcadis) is pleased to submit this Groundwater Monitoring Report – Third Quarter 2022 (report). This report summarizes the groundwater monitoring/sampling completed between July 18 and 20, 2022 at the former Chevron facility (Gulf Oil Company #205513; the Site; Incident #14873) located at 600 South Main Street in High Point, North Carolina. It has been established that because Ilderton Oil (additional responsible party) had dissolved in 2012, North Carolina Department of Environmental Quality (NCDEQ) Underground Storage Tank (UST) Section, Division of Waste Management, Winston-Salem Regional Office would take over Incident #14874 under the state lead program. It has also been proposed by NCDEQ that CEMC would clean up 1,2-dichloroethane (1,2-DCA) and ethylene dibromide (EDB) concentrations to below the Gross Contamination Levels (GCLs); and once 1,2-DCA and EDB were below the GCLs, NCDEQ would assume the remaining liability at the site. The previous groundwater samples were collected in December 2021 and the results were submitted in the Pre-Corrective Action Plan Groundwater Assessment Report (PreCAP), dated May 27, 2022. NCDEQ issued an Acknowledgement of Report Receipt on June 23, 2022 for the PreCAP and requested the next semiannual groundwater monitoring event be completed in July 2022. Results from the July 2022 sampling indicated 1,2-DCA and EDB concentrations were above GCLs in one well (MW-8), and benzene remained above GCLs in three wells (MW-2, MW-7, and MW-8). Overall constituent of concern (COC) concentrations have decreased or remained stable in site monitoring wells since sampling began in 2005. This report was prepared in accordance with the NCDEQ cleanup requirements pursuant to Title 15A North Carolina Administrative Code 2L, Title 15A Department of Environmental Quality 0407(d) Risk-based Assessment and Corrective Action for Petroleum USTs for intermediate risk. Regulatory correspondence is included in Appendix A. 2 Site Location and Characterization The site is located at the southwest corner of Grimes Avenue and South Main Street in High Point, North Carolina, as shown on the United States Geologic Survey (USGS) Topographic Quadrangle for High Point West (Figures 1 and 2). High Point is located in the southwestern portion of Guilford County, North Carolina. The area is urban in character and primarily commercial to the north, east, and south of the site. The area to the west is a combination of commercial and residential. Figure 2 is a Local Land Use Map. The site currently operates as a retail oriental rug supplier, consisting of a large showroom and warehouse structure with an asphalt parking lot. A two-door warehouse delivery bay exists on the southeast side of the facility along Taylor Avenue. Additional customer and employee parking is situated along Taylor Avenue on the southeast side of the property. The current site structure encompasses an area much larger than the original retail petroleum station. At the time when the site operated as a petroleum retail station, the legal deed reported the site dimensions as approximately 0.33 acre. The current property is greater than one acre in size and is listed as 600 South Main Steet. The properties contiguous to the west were zoned as residential multi-family, although an area of commercial properties was also shown as located to the west of the site. Beyond the immediate vicinity of the site, most properties in the High Point Main Street area were shown to be zoned as commercial (2022 Arcadis). A site map showing former site features and underground storage tank data is included on Figure 3. Groundwater Monitoring Report – Third Quarter 2022 www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR.docx 2 2.1 Facility Ownership and Well Installation History Based on the information provided in the Phase I Environmental Site Assessment (ENSCI Environmental, Inc. 1995), the site was most likely used for residential purposes prior to 1929. In 1929, Gulf Oil purchased the property, and USTs were installed at some point between 1929 and 1938, when they are evident on aerial photographs of the area. Three 6,000-gallon USTs (ID numbers 1, 2, and 3) used for storage and distribution of gasoline were installed in the UST field located on the northwest portion of the property in 1971. In 1979, Ilderton Oil purchased the property and the existing 6,000-gallon USTs. Ilderton Oil operated USTs 1, 2, and 3 until they were removed and replaced in October 1988 with three new 6,000-gallon USTs (ID numbers 11, 12, and 13). Gulf Oil and its successors never owned or operated USTs 11, 12, and 13. In October 1995 and prior to the sale of the property, Ilderton Oil removed USTs 11, 12, and 13. During these removal activities, seven additional USTs were encountered and removed. Five 1,000-gallon USTs (ID numbers 4, 5, 6, 7, and 8), which appeared to have been used for storage and distribution of gasoline, were encountered in a UST pit located on the northeastern portion of the property. One 650-gallon UST used for the storage of used oil, and one 750-gallon UST used for the storage of kerosene were located in a UST pit on the southern portion of the property. The seven additional USTs were owned and operated by Gulf Oil and had previously been abandoned in place. A summary of USTs previously located at the site is included in Table 1, and a summary of UST ownership is included in Table 2. Between June 13 and 14, 2005, representatives of Blasland, Bouck and Lee, Inc. (BBL) and Geologic Exploration, Inc. (GEX) (a North Carolina licensed well driller) installed groundwater monitoring wells MW-1, MW-2, and MW-3 (BBL 2005). Between September 13 and 14, 2005, wells MW-5 and MW-6 were installed at locations expected to be downgradient from the former Gulf Oil gasoline UST area as specified in the UST Section Guidelines, and deep well MW-4D was installed adjacent to monitoring well MW-2 (BBL 2005). Between February 24 and 25, 2014, representatives of Arcadis and GEX installed monitoring wells MW-7, MW-8, and MW-9 (Arcadis 2014). 3 Receptor Information A sensitive receptor survey was completed in April 2011. Potable water is obtained from a municipal supply in the area of the Site. Additionally, no potable water wells were identified within 1,500-feet of the site. The nearest surface water body is an intermittent tributary of the Richland Creek, which has its headwater approximately 2,500-feet to the west of the former UST areas (Arcadis 2022). 4 Geology and Hydrogeology The geology and hydrogeology for this area and the site are summarized below. 4.1 Regional Geology and Hydrogeology The site is located within the Piedmont Physiographic Province in central North Carolina, which is characterized by gently rolling landscape and broad ridges that lie between the Coastal Plain to the east and the Blue Ridge Mountains to the west. The site is located within the Carolina Slate Belt. Rocks of this area generally consist of metamorphosed igneous intrusive granitic rock ranging in age from 520 to 650 million years old (Brown, et al. 1985). The primary rock type in the area is metamorphosed granite with some intrusions of granodiorite and Groundwater Monitoring Report – Third Quarter 2022 www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR.docx 3 quartz diorite. This rock is best described as white to gray, and fine to coarse grained with massive foliation (Carpenter 1982). Weathering of the rock in this area produces an overlying soil material identified as saprolite which resembles soil but retains some of the structure of the parent bedrock. Saprolite is produced by chemical weathering of the underlying crystalline rock. Saprolite grades with depth to a semi-consolidated material known as partially weathered rock (PWR). Regionally, groundwater is found in saprolite, PWR, and underlying bedrock. Typically, these units may behave as separate, unconfined, and semi-confined units within the aquifer system. PWR can be included as part of the unconfined unit because it reacts hydraulically with saprolite. The saprolite and PWR typically have the capacity to store large volumes of groundwater and act as a groundwater reservoir due to their high porosity relative to the underlying bedrock unit. Groundwater storied in the saprolite generally flows horizontally toward surface water features mimicking the local topography. Metavolcanic rocks generally have almost no porosity features such as joints and fractures that contain groundwater. Groundwater flow within bedrock fractures is controlled by the number, size, spacing, orientation, and interconnectedness of the fractures (USGS 1997). 4.2 Site Geology Based on data collected during previous monitoring well installations at the Site, surficial soil and saprolite are present from the ground surface to approximately 58 below ground surface (bgs) and consist of a clayey to sandy silt. 5 Groundwater Monitoring Groundwater sampling at the site was completed as summarized below. 5.1 Groundwater Gauging On July 19, 2022, the nine site monitoring wells were gauged with an oil/water interface probe to determine depth to groundwater and measure phase separated hydrocarbon (PSH) if present. Gauging data from wells MW-1, MW-3 and MW-5 were inadvertently lost due to damaged equipment shortly following gauging activities, so they are not included for this event. Depths to water in the remaining six wells ranged from 28.12 feet below top-of- casing (btoc) in monitoring well MW-2 to 29.90 feet btoc in monitoring well MW-6. The corresponding groundwater elevations ranged from 881.12 United States survey (US survey) feet in well MW-8 & MW-9 to 882.60 US survey feet in well MW-6. PSH was not detected in the monitoring wells during the July 2022 gauging activities. Historical groundwater gauging data indicate PSH has not been detected in the nine site monitoring wells. Groundwater gauging data from the most recent event (July 2022) and the historical groundwater gauging data are provided in Table 3; well construction and location information for the nine monitoring wells is also summarized. Data from the July 2022 event indicated that, although relatively flat, the horizontal component of shallow groundwater flow was to the south/ southwest.A potentiometric surface map is included as Figure 4. 5.2 Groundwater Sampling Upon completion of gauging activities, groundwater samples were collected for the nine site monitoring wells between July 18 and 20, 2022, in accordance with the sampling plan (Table 4). Groundwater samples were Groundwater Monitoring Report – Third Quarter 2022 www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR.docx 4 collected using low flow sampling methodologies in accordance with current United States Environmental Protection Agency (USEPA) practices (USEPA 2013). Throughout the sampling process at each well, measurements of temperature, pH, specific conductance, dissolved oxygen (DO), oxygen reduction potential (ORP), and turbidity, were recorded using a calibrated multiparameter water quality meter and turbidity meter. The field parameters and sampling information were recorded on field sampling logs and are included in Appendix B. The groundwater samples were collected in pre-preserved laboratory-supplied containers and immediately placed in a cooler with wet ice following collection. At the completion of sampling activities, the samples were delivered in properly cooled and sealed containers to Pace Analytical National, a North Carolina certified laboratory in Mount Juliet, Tennessee under appropriate chain-of-custody procedure. Samples were analyzed for volatile organic compounds by USEPA Method 6200B. Quality assurance/quality control (QA/QC) samples were collected to provide additional data for evaluating the quality of the chemical analysis. QA/QC samples included a blind duplicate, a matrix spike/matrix spike duplicate (MS/MSD), equipment rinsate blank, and a field blank. The laboratory and data validation reports are included in Appendix C. Analytical data were validated in accordance with USEPA National Functional Guidelines. Validation provided the means to determine the reliability of the chemical analysis, the accuracy, and the precision of information acquired by the laboratory. 5.3 Groundwater Analytical Results Groundwater COCs exceeding the GCLs were detected in samples collected from three of the nine monitoring wells during the July 2022 groundwater sampling event. Groundwater COC results for the nine wells are summarized in Table 5 and shown on Figure 5. Historical analytical results between June 2005 and July 2022 are also summarized in Table 5. Dissolved-phase benzene concentrations exceeded the GCL of 5,000 µg/L in groundwater samples collected from monitoring wells MW-2 (9,280 micrograms per liter [µg/L]), MW-7 (5,930 µg/L), and MW-8 (23,800 µg/L). Dissolved phase 1,2-DCA, and EDB concentrations exceeded the GCL standard of 400 µg/L and 50 µg/L, respectively, in the groundwater sample collected from monitoring well MW-8 (1,240 µg/L and 222 µg/L, respectively). Methyl tertiary butyl ether did not exceed the GCL of 20,000 µg/L during this event; detected concentrations ranged from 12.6 (MW-4D) to 6,950 (MW-9). Benzene, 1,2-DCA, and EDB isoconcentration maps are provided on Figures 6, 7, and 8. 6 Investigative Derived Waste Purge water generated in July 2022 was profiled and transported by Clean Harbors Environmental Services, Inc. and disposed of on September 6, 2022 at Clean Harbors LaPorte, LLC in LaPorte, Texas, a North Carolina certified waste disposal facility. The waste manifest is included in Appendix D. 7 Conclusion and Recommendations  During the July 2022 groundwater monitoring event groundwater elevations were gauged and samples were collected from the nine Site monitoring wells. Groundwater Monitoring Report – Third Quarter 2022 www.arcadis.com 2023.01.26 Chevron 205513 3Q2022 GMR.docx 5  Benzene concentrations were detected above the GCL at three monitoring wells (MW-2, MW-7, and MW-8)  Dissolved phase 1,2-DCA and EDB concentrations were detected above their respective GCLs at monitoring well MW-8.  Benzene concentrations in MW-2 and MW-7 have declined over the last two sampling events.  Semiannual groundwater monitoring will continue in 2023 (first and third quarters) and the results will be provided in subsequent groundwater monitoring reports. Data gathered during the semiannual groundwater monitoring events will be used for the corrective action plan for the site. Monitored natural attenuation parameters have been added to the next sampling event. A remedial strategy will be proposed once sufficient data can be evaluated. 8 References Arcadis, 2014. Well Installation Report, Former Gulf Oil / Chevron #205513, 500 South Main Street, High Point, Guilford County, North Carolina. March 2014. Arcadis 2022. Pre-Corrective Action Plan Groundwater Assessment Report, Former Chevron Facility (Gulf Oil) #205513, 600 South Main Street (formerly 500 South Main Street), High Point, North Carolina. May 27. Blasland, Bouck & Lee, Inc. (BBL), 2005. Limited Site Assessment Report, Illoco Mart – High Point B, Former Chevron Facility 205512, 500 South Main Street, High Point, Guilford County, North Carolina, Groundwater Incident No. 14873. November 2005. Brown, et al., 1985. Geologic Map of North Carolina: North Carolina Geological Survey, 1:500,000. Carpenter, 1982. Geologic Map of Region G (Alamance, Caswell, Davidson, Guilford, Randolph, and Rockingham counties North Carolina). Regional Geology Series 2. North Carolina Geological Survey. ENSCI Engineering Group, P.A., 1995. UST Closure Report, Iloco Convenience Store/Gas Station, 500 South Main Street, High Point, North Carolina. November 1995. USEPA, 2013. Groundwater Sampling Operating Procedure. U.S. Environmental Protection Agency, Science and Ecosystem Support Division, Athens, Georgia. March, 2013. USGS, 1997. Groundwater Atlas of the United States, Segment 11, Hydrogeologic Investigations Atlas 730-L. United States Geological Survey. Reston, Virginia. 1997. Tables Table 1 UST System Information Chevron 600 South Main Street High Point, North Carolina 1/1 Gasoline Gasoline 6,000 Unknown Unknown Unknown 1971 Removed - 1988 Unknown 2/1 Gasoline Gasoline 6,000 Unknown Unknown Unknown 1971 Removed - 1988 Unknown 3/1 Gasoline Gasoline 6,000 Unknown Unknown Unknown 1971 Removed - 1988 Unknown 4/2 Gasoline Gasoline 1,000 Unknown 4' - 0 10.5'-0 Unknown Unknown Closed - 1979; Removed - 1995 Unknown 5/2 Gasoline Gasoline 1,000 Unknown 4' - 0 10.5'-0 Unknown Unknown Closed - 1979; Removed - 1995 Unknown 6/2 Gasoline Gasoline 1,000 Unknown 4' - 0 10.5'-0 Unknown Unknown Closed - 1979; Removed - 1995 Unknown 7/2 Gasoline Gasoline 1,000 Unknown 4' - 0 10.5'-0 Unknown Unknown Closed - 1979; Removed - 1995 Unknown 8/2 Gasoline Gasoline 1,000 Unknown 4' - 0 10.5'-0 Unknown Unknown Closed - 1979; Removed - 1995 Unknown 9 Waste Oil Waste Oil 560 Unknown 3.5' - 0 7.67' - 0 Unknown Unknown Removed - 1995 Unknown 10 Kerosene Kerosene 560 Unknown 3.5' - 0 7.67' - 0 Unknown Unknown Removed - 1995 Unknown 11/3 Gasoline Gasoline 6,000 Unknown 8' - 0 16'- 0 Unknown 1988 Removed - 1995 Unknown 12/3 Gasoline Gasoline 6,000 Unknown 8' - 0 16'- 0 Unknown 1988 Removed - 1995 Unknown 13/3 Gasoline Gasoline 6,000 Unknown 8' - 0 16'- 0 Unknown 1988 Removed - 1995 Unknown Notes: 1 - Operated by Gulf Oil Company & Ilderton Oil Company. 2 - Abandoned in place with sand/cement prior to Ilderton Oil Company's purchase of the property in 1979. 3 - Owned and operated solely by Ilderton Oil Company. 4 - UST dimensions obtained from Southern Pump & Tank Company Tank Chart Information. UST = underground storage tank. Associated Piping and Pumps Description Date Tank Installed Status of UST Release associated with the UST System? UST ID Number Current/Last Contents Previous Contents Capacity (gallons) Construction Details Tank Dimensions/4 T1_UST Details 1/1 Table 2 UST Owner/Operator Information Chevron 600 South Main Street High Point, North Carolina UST ID Number Name of Owner or Operator Dates of Ownership/Operation Owner or Operator? 11, 12, and 13 Ilderton Oil Company 1995 to 1998 owner/operator UST ID Number Name of Owner or Operator Dates of Ownership/Operation Owner or Operator? 4, 5, 6, 7, 8, 9, and 10 Gulf Oil Company unknown owner UST ID Number Name of Owner or Operator Dates of Ownership/Operation Owner or Operator? 1, 2, and 3 Ilderton Oil Company 1979 to 1988 owner/operator UST ID Number Name of Owner or Operator Dates of Ownership/Operation Owner or Operator? 1, 2, and 3 Gulf Oil Company 1971 to 1979 owner/operator Note: UST = underground storage tank Address:Telephone Number: Ilderton Oil Company was dissolved in 2012 Address:Telephone Number: Address:Telephone Number: (Chevron Environmental Management Company) 1500 Louisiana Street 38154, Houston, Texas, 77002 832.854.5667 (Chevron Environmental Management Company) 1500 Louisiana Street 38154, Houston, Texas, 77002 832.854.5667 Address:Telephone Number: Ilderton Oil Company was dissolved in 2012 T2_UST Ownership 1/1 Table 3 Groundwater Monitoring Well Construction and Elevation Data Chevron 600 South Main Street High Point, North Carolina Well ID Latitude / Longitude Date Installed (mm/dd/yr) Well Diameter (inches) Total Depth (feet btoc) Screened Interval (feet btoc) Top of Casing Elevation (feet msl) Gauging Date (mm/dd/yr) Depth to Water (feet btoc) Depth to Product (feet btoc) Free Product Thickness (feet) Corrected Groundwater Elevation (feet msl) 06/14/05 27.85 ND ND 883.07 09/13/05 29.11 ND ND 881.81 09/26/05 29.25 ND ND 881.67 10/11/05 29.30 ND ND 881.62 06/22/10 28.36 ND ND 882.56 02/25/14 29.84 ND ND 881.08 12/14/21 28.48 ND ND 882.44 7/19/2022a -------- 06/14/05 27.44 ND ND 882.64 09/13/05 27.92 ND ND 882.16 09/26/05 28.20 ND ND 881.88 10/11/05 28.30 ND ND 881.78 06/22/10 27.37 ND ND 882.71 02/25/14 28.88 ND ND 881.20 12/14/21 27.45 ND ND 882.63 07/19/22 28.12 ND ND 881.96 06/14/05 13.90 ND ND 882.89 09/13/05 15.17 ND ND 881.62 09/26/05 15.35 ND ND 881.44 10/11/05 15.40 ND ND 881.39 06/22/10 14.63 ND ND 882.16 02/25/14 16.01 ND ND 880.78 12/14/21 15.09 ND ND 881.70 7/19/2022a -------- 09/13/05 26.30 ND ND 884.27 09/26/05 28.80 ND ND 881.77 10/11/05 28.89 ND ND 881.68 06/22/10 27.97 ND ND 882.60 02/25/14 29.47 ND ND 881.10 12/14/21 28.06 ND ND 882.51 57.70 07/20/22 28.76 ND ND 881.81 09/13/05 26.94 ND ND 882.24 09/26/05 27.12 ND ND 882.06 10/11/05 27.22 ND ND 881.96 06/22/10 26.32 ND ND 882.86 02/25/14 27.80 ND ND 881.38 12/14/21 26.53 ND ND 882.65 7/19/2022a -------- MW-2 MW-1 801926.639 N 1702730.838 S 6/13/2005 2 37.00 6/14/2005 2 25.00 10-25 910.9222-37 909.18MW-5 802152.810 N 1702634.365 E 9/13/2005 2 40.00 25-40 MW-4D 802074.968 N 1702747.309 E 9/13/2005 910.08 910.5758.00 802078.392 N 1702745.238 E 6/13/2005 2 37.00 22-37 896.79MW-3 802079.517 N 1702402.193 E 6 53-58 T3_Well Construction & GW Elev 1/2 Table 3 Groundwater Monitoring Well Construction and Elevation Data Chevron 600 South Main Street High Point, North Carolina Well ID Latitude / Longitude Date Installed (mm/dd/yr) Well Diameter (inches) Total Depth (feet btoc) Screened Interval (feet btoc) Top of Casing Elevation (feet msl) Gauging Date (mm/dd/yr) Depth to Water (feet btoc) Depth to Product (feet btoc) Free Product Thickness (feet) Corrected Groundwater Elevation (feet msl) 09/13/05 29.96 ND ND 882.54 09/26/05 29.60 ND ND 882.90 10/11/05 30.18 ND ND 882.32 06/22/10 29.31 ND ND 883.19 02/25/14 30.83 ND ND 881.67 12/14/21 29.16 ND ND 883.34 40.01 07/20/22 29.90 ND ND 882.60 02/25/14 29.76 ND ND 880.49 12/14/21 28.33 ND ND 881.92 37.28 07/19/22 29.02 ND ND 881.23 02/25/14 29.39 ND ND 880.38 12/14/21 27.98 ND ND 881.79 37.10 07/20/22 28.65 ND ND 881.12 02/25/14 29.43 ND ND 880.41 12/14/21 28.04 ND ND 881.80 37.40 07/20/22 28.72 ND ND 881.12 Notes: btoc = below top of well casing msl = mean sea level ND = not detected mm/dd/yr = month/day/year a = Groundwater gauging data collected from wells MW-1, MW-3, and MW-5 in July 2022 were inadvertantly lost because of damaged equipment. 40.00MW-6 802198.116 N 1702897.303 E 22-37 909.84 37.00 37.00 MW-8 802045.978 N 1702724.309 E 37.00MW-9 802063.491 N 1702710.205 E 2/24/2014 2 909.77 910.25 912.50 MW-7 2/24/2014 2 22-37 802054.562 N 1702760.910 E 2/24/2014 2 22-37 9/14/2005 2 25-40 T3_Well Construction & GW Elev 2/2 Table 4 2022 Sampling Analysis Plan Chevron 600 South Main Street High Point, North Carolina Well ID Date Installed (mm/dd/year) Total Depth (feet btoc) Screened Interval (feet btoc) EPA Method 6200B Field Parameters1 MW-1 6/13/2005 37.00 22-37 X X MW-2 6/13/2005 37.00 22-37 X X MW-3 6/14/2005 25.00 10-25 X X MW-4D 9/13/2005 58.00 53-58 X X MW-5 9/13/2005 40.00 25-40 X X MW-6 9/14/2005 40.00 25-40 X X MW-7 2/24/2014 37.00 22-37 X X MW-8 2/24/2014 37.00 22-37 X X MW-9 2/24/2014 37.00 22-37 X X Notes: btoc = below top of well casing. DO = dissolved oxygen. EPA = environmental protection agency. mS/cm = millisiemens per centimeter. NA = not applicable. ND = not detected. ORP = oxidation reduction potential. mm/dd/yr = month/day/year. 1Field parameters = pH, specific conductance (mS/cm), temperature, DO, ORP, and turbidity. T4_SAP 1/1 Table 5 Groundwater Analytical Results Chevron 600 South Main Street High Point, North Carolina 5,000 260,000 84,500 85,500 25,000 6,000 30,000 20,000 28,500 25,000 70,000 400 600 50 06/14/05 1.3 3.0 NA NA NA < 1.0 NA NA < 1.0 < 1.00 < 1.00 NA 06/22/10 2.3 < 0.70 < 0.50 < 1.6 NA NA NA < 0.74 NA NA < 0.50 < 0.50 < 0.50 NA 02/25/14 < 5.0 < 1.0 < 1.0 < 5.0 NA NA NA < 1.0 NA NA < 1.0 < 1.0 < 1.0 < 0.019 12/15/21 < 1.0 < 1.0 < 1.0 < 2.0 < 1.0 < 5.0 < 1.0 U 0.645 J < 1.0 < 1.0 < 1.0 0.238 J < 1.0 < 1.0 7/18/22 < 1.00 < 1.00 < 1.00 < 3.00 < 1.00 < 5.00 < 1.00 0.904 J < 1.00 < 1.00 0.105 J < 1.00 < 1.00 < 1.00 DUP 7/18/22 < 1.00 < 1.00 < 1.00 < 3.00 < 1.00 < 5.00 < 1.00 0.875 J < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 06/14/05 9,840 2,540 2,500 NA NA NA 475 NA NA 90.0 414 4.70 NA 06/22/10 12,000 770 1,400 2,000 NA NA NA 3,200 NA NA 59 520 < 50 NA 02/25/14 16,000 550 3,100 2,800 120 800 270 6,100 860 200 < 100 250 < 100 1.4 12/14/21 11,700 D 475 J 2,730 3,285 104 J 665 235 J 5,620 1,400 336 J 52.5 J 121 J < 50 UJ < 50 UJ 7/19/22 9,280 204 1,560 1,217 J 50.6 J 313 J 149 J 6,510 735 186 J 38.5 J 147 J < 200 < 200 06/14/05 < 1.0 < 1.0 < 1.0 < 3.0 NA NA NA < 1.0 NA NA < 1.0 < 1.00 < 1.00 NA 06/22/10 < 0.30 < 0.70 < 0.50 < 1.6 NA NA NA < 0.74 NA NA < 0.50 < 0.50 < 0.50 NA 02/25/14 < 1.0 < 1.0 < 1.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 0.020 12/15/21 < 1.0 < 1.0 < 1.0 < 2.0 < 1.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 7/18/22 < 1.00 < 1.00 < 1.00 < 3.00 < 1.00 < 5.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 <1.00 <1.00 10/11/05 < 1.00 < 1.00 < 1.00 < 2.00 NA NA NA < 1.00 NA NA < 1.00 6.03 < 1.00 NA 06/22/10 < 0.30 < 0.70 < 0.50 < 1.6 NA NA NA < 0.74 NA NA < 0.50 2.8 < 0.50 NA 02/25/14 1.1 < 1.0 < 1.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 0.019 12/14/21 0.367 J < 1.0 < 1.0 < 2.0 < 1.0 < 5.0 < 1.0 6.04 < 1.0 < 1.0 0.804 J 0.584 J < 1.0 < 1.0 7/20/22 < 1.00 < 1.00 < 1.00 < 3.00 < 1.00 < 5.00 < 1.00 12.6 < 1.00 < 1.00 1.64 1.19 <1.00 <1.00 10/11/05 < 1.00 < 1.00 < 1.00 < 2.00 NA NA NA < 1.00 NA NA < 1.00 < 1.00 < 1.00 NA 06/22/10 < 0.30 < 0.70 < 0.50 < 1.6 NA NA NA < 0.74 NA NA < 0.50 < 0.50 < 0.50 NA 02/25/14 < 1.0 < 1.0 < 1.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 0.019 12/15/21 < 1.0 < 1.0 < 1.0 < 2.0 < 1.0 < 5.0 < 1.0 0.149 J < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 7/19/22 < 1.00 < 1.00 < 1.00 < 3.00 < 1.00 < 5.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 <1.00 <1.00 10/11/05 < 1.00 < 1.00 < 1.00 < 2.00 NA NA NA < 1.00 NA NA < 1.0 < 1.00 < 1.00 NA 06/23/10 < 0.30 < 0.70 < 0.50 < 1.6 NA NA NA < 0.74 NA NA < 0.50 < 0.50 < 0.50 NA 02/25/14 < 1.0 < 1.0 < 1.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 <1.0 < 0.019 12/15/21 < 1.0 < 1.0 < 1.0 < 2.0 < 1.0 < 5.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 < 1.0 7/20/22 < 1.00 < 1.00 < 1.00 < 3.00 < 1.00 < 5.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 < 1.00 <1.00 <1.00 MW-6 MW-5 MW-4D MW-3 MW-2 GCL (µg/L)Isopropyl etherIsopropylbenzeneNaphthalenen-PropylbenzeneMethyl tert-butyl etherWell Date Collected (mm/dd/yr) Volatile Organic Compounds (VOCs) by EPA 625 & SM 6200B MW-1 Benzene TolueneEthylbenzeneTotal Xylenes1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1,2-Dichloroethane1,2-DichloropropaneEthylene dibromide (EDB)T5_GW Analytical 1/2 Table 5 Groundwater Analytical Results Chevron 600 South Main Street High Point, North Carolina 5,000 260,000 84,500 85,500 25,000 6,000 30,000 20,000 28,500 25,000 70,000 400 600 50GCL (µg/L)Isopropyl etherIsopropylbenzeneNaphthalenen-PropylbenzeneMethyl tert-butyl etherWell Date Collected (mm/dd/yr) Volatile Organic Compounds (VOCs) by EPA 625 & SM 6200B Benzene TolueneEthylbenzeneTotal Xylenes1,2,4-Trimethylbenzene1,3,5-Trimethylbenzene1,2-Dichloroethane1,2-DichloropropaneEthylene dibromide (EDB)02/25/14 9,400 77 820 < 250 82 420 73 2,500 < 50 < 50 52 < 50 < 50 0.84 12/14/21 7,980 D 198 D 2160 D 2,800 D 95.4 636 D 180 D 3,960 D 1090 D 328 D 44.2 93.4 < 1 11.4 7/19/22 5,930 53.8 1,300 823 56.1 302 130 3,310 427 161 32.4 J 120 <50.0 <50.0 02/26/14 22,000 3,200 2,400 8,100 NA NA NA 36,000 NA NA NA 2,000 < 200 210 12/16/21 2,730 D 96.9 D 974 D 476.6 D 62.6 185 D 126 D 7,400 D 200 D 73.2 12.5 18 < 1 < 1.0 7/20/22 23,800 12,100 J 1,820 9,120 71.4 342 199 <25.0 1,310 335 315 1,240 <25.0 222 02/26/14 9,800 3,800 3,400 9,300 NA NA NA 9,000 NA NA NA 330 < 50 8.7 12/15/21 19,700 15,400 2,100 7,280 90 J 432 J 187 J 88,200 D 1,260 311 242 J 742 < 250 193 J 7/20/22 4,250 <1,000 1,000 J <3,000 <1,000 1,240 J <1,000 6,950 <1,000 <1,000 <1,000 <1,000 <1,000 <1,000 Notes: Results reported in micrograms per liter (µg/L). GCL = Gross Contamination Levels for Groundwater. D = Concentration is based on a diluted sample analysis. DNE = Does not exist. J = The compound was positively identified; however, the associated numerical value is an estimated concentration only. UJ = The compound was not detected above the reported sample quantitation limit. However, the reported limit is appropriate and may or may not represent the actual limit of quantitation. NA = Not analyzed / not available. Bold analytical values indicate concentration exceeds the applicable GCL. DUP = Duplicate Sample Result mm/dd/yr = month/day/year. MW-9 MW-8 MW-7 T5_GW Analytical 2/2 Figures NORTH CAROLINA SITE LOCATION MAP 1C:\Users\ari00071\ACCDocs\Arcadis\AUS-CHEVRON-205513-HIGH POINT North Carolina\Project Files\2022\01-In Progress\01-DWG\GEN-F01-SLM.dwg LAYOUT: 1 SAVED: 5/19/2022 11:36 PM ACADVER: 24.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: ARCADIS.CTB PLOTTED: 10/18/2022 9:25PM BY: R, ANITAHIGH POINT SITE LOCATION REFERENCE: BASE MAP USGS 7.5. MIN. TOPO. QUAD., HIGH POINT EAST AND HIGH POINT WEST, NORTH CAROLINA, 2019. Approximate Scale: 1 in. = 2000 ft. 0 2000'4000' FIGURE CHEVRON FACILITY #205513 600 SOUTH MAIN STREET HIGH POINT, NORTH CAROLINA SCHOOL DAYCARE PARK/ RECREATION CENTER 1,500 FTSITE SOUTH MAIN ST.TAYLOR AVE.S. ELM ST.LAND USE MAP IMAGES: Arcadis Logo_2021.PNGXREFS:PROJECTNAME: ----IMAGE: BING MAPS C:\Users\jlharris\ACCDocs\Arcadis\AUS-CHEVRON-205513-HIGH POINT North Carolina\Project Files\2022\01-In Progress\01-DWG\GEN-F02-LAND USE.dwg LAYOUT: 2 SAVED: 2/9/2022 5:24 PM ACADVER: 24.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: PLTFULL.CTB PLOTTED: 5/19/202211:00 AM BY: HARRIS, JESSCHEVRON FACILITY #205513 600 SOUTH MAIN STREET HIGH POINT, NORTH CAROLINA 2 FIGURE 0 GRAPHIC SCALE 500'1000' ZAKI ORIENTAL RUGS W. GRI M E S A V E N U E 60' R/W BRICK BUILDING S. ELM STREET68' R/WTAYLOR AVE N U E VARIABLE WI D T H R / W S. MAIN STREET100' R/W MW-3 MW-5 MW-6 MW-1 MW-8 MW-9 MW-2 MW-7 MW-4D 470 S MAIN STREET 465 S MAIN STREET IMAGES: Arcadis Logo_2021.PNG GEN-X-IMAGE1.jpgXREFS:PROJECTNAME: ----SOURCE: Base map digitized from 'WELL LOCATION SURVEY' provided by 'Taylor Wiseman & Taylor', 4101-F Stuart Andrew Blvd., Charlotte, NC. (704) 527-2535, map date June 30, 2005, map scale 1"=50'. Wells surveyed by Taylor Wiseman & Taylor 11/23/2021. Aerial image from Google Earth Pro.C:\Users\ari00071\ACCDocs\Arcadis\AUS-CHEVRON-205513-HIGH POINT North Carolina\Project Files\2022\01-In Progress\01-DWG\GWM-3Q22-F02-SITE PLAN_1.dwg LAYOUT: 2 SAVED: 10/18/2022 11:16 PM ACADVER: 24.2S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: PLTFULL.CTB PLOTTED:10/19/2022 10:27 AM BY: R, ANITACHEVRON FACILITY #205513 600 SOUTH MAIN STREET HIGH POINT, NORTH CAROLINA 0 GRAPHIC SCALE 100'200' PROPERTY LINE SHALLOW MONITORING WELL DEEP MONITORING WELL LEGEND SITE MAP FIGURE3 ZAKI ORIENTAL RUGS W. GRI M E S A V E N U E 60' R/W BRICK BUILDING S. ELM STREET68' R/W TAYLOR AVE N U E VARIABLE WI D T H R / W S. MAIN STREET100' R/W MW-3* MW-5* MW-6 (882.60) MW-1* MW-8 (881.12) MW-9 (881.12) MW-2 (881.96) MW-7 (881.23) MW-4D (881.81) 882.50882.50 882.00882.00 881.50 881.5 0 IMAGES: Arcadis Logo_2021.PNG GEN-X-IMAGE1.jpgXREFS:PROJECTNAME: ----SOURCE: Base map digitized from 'WELL LOCATION SURVEY' provided by 'Taylor Wiseman & Taylor', 4101-F Stuart Andrew Blvd., Charlotte, NC. (704) 527-2535, map date June 30, 2005, map scale 1"=50'. Wells surveyed by Taylor Wiseman & Taylor 11/23/2021. Aerial image from Google Earth Pro.C:\Users\aschilling\DC\ACCDocs\Arcadis\AUS-CHEVRON-205513-HIGH POINT North Carolina\Project Files\2023\01-In Progress\01-DWG\GWM-3Q22-F04-GWE.dwg LAYOUT: 4 SAVED: 1/20/2023 1:34 PM ACADVER: 24.2S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: PLTFULL.CTB PLOTTED:1/20/2023 1:34 PM BY: SCHILLING, ADAMCHEVRON FACILITY #205513 600 SOUTH MAIN STREET HIGH POINT, NORTH CAROLINA 4 FIGURE 0 GRAPHIC SCALE 100'200' PROPERTY LINE SHALLOW MONITORING WELL DEEP MONITORING WELL GROUNDWATER ELEVATION (FEET) POTENTIOMETRIC SURFACE CONTOUR (FEET) GROUNDWATER FLOW DIRECTION NOT INCLUDED THIS GAUGING EVENT; DATA INADVERTENTLY LOST DUE TO DAMAGED EQUIPMENT LEGEND GROUNDWATER CONTOUR MAP JULY 19-20, 2022 (882.60) 882.50 * ZAKI ORIENTAL RUGS W. GRI M E S A V E N U E 60' R/W BRICK BUILDING S. ELM STREET68' R/WTAYLOR AVE N U E VARIABLE WI D T H R / W S. MAIN STREET100' R/W MW-3 MW-5 MW-6 MW-1 MW-8 MW-9 MW-2 MW-7 MW-4D IMAGES: Arcadis Logo_2021.PNG GEN-X-IMAGE1.jpgXREFS:PROJECTNAME: ----SOURCE: Base map digitized from 'WELL LOCATION SURVEY' provided by 'Taylor Wiseman & Taylor', 4101-F Stuart Andrew Blvd., Charlotte, NC. (704) 527-2535, map date June 30, 2005, map scale 1"=50'. Wells surveyed by Taylor Wiseman & Taylor 11/23/2021. Aerial image from Google Earth Pro.C:\Users\aschilling\DC\ACCDocs\Arcadis\AUS-CHEVRON-205513-HIGH POINT North Carolina\Project Files\2023\01-In Progress\01-DWG\GWM-3Q22-F05-GWAR.dwg LAYOUT: 5 SAVED: 1/23/2023 9:37 AM ACADVER: 24.2S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: PLTFULL.CTB PLOTTED:1/23/2023 9:40 AM BY: SCHILLING, ADAMCHEVRON FACILITY #205513 600 SOUTH MAIN STREET HIGH POINT, NORTH CAROLINA 5 FIGURE 0 GRAPHIC SCALE 100'200' PROPERTY LINE SHALLOW MONITORING WELL DEEP MONITORING WELL GROSS CONTAMINATION LEVELS FOR GROUNDWATER. THE COMPOUND WAS POSITIVELY IDENTIFIED; HOWEVER, THE ASSOCIATED NUMERICAL VALUE IS AN ESTIMATED CONCENTRATION ONLY. BOLD VALUES INDICATE CONCENTRATION EXCEEDS THE APPLICABLE GCL. DUPLICATE SAMPLE RESULT METHYL TERT-BUTYL ETHER LEGEND GROUNDWATER ANALYTICAL MAP JULY 18 - 20, 2022 GCLs MW-1 Date 7/18/2022 Benzene <1.00 [<1.00] Toluene <1.00 [<1.00] Ethylbenzene <1.00 [<1.00] Xylenes (Total)<3.00 [<3.00] MTBE <0.904 J [0.875 J] 1,2-DCA <1.00 [<1.00] EDB <1.00 [<1.00] MW-2 Date 7/19/2022 Benzene 9,280 Toluene 204 Ethylbenzene 1,560 Xylenes (Total)1,217 J MTBE 6,510 1,2-DCA 147 J EDB <200 MW-3 Date 7/18/2022 Benzene <1.00 Toluene <1.00 Ethylbenzene <1.00 Xylenes (Total)<3.00 MTBE <1.00 1,2-DCA <1.00 EDB <1.00 MW-4D Date 7/20/2022 Benzene <1.00 Toluene <1.00 Ethylbenzene <1.00 Xylenes (Total)<3.00 MTBE 12.6 1,2-DCA 1.19 EDB <1.00 MW-5 Date 7/19/2022 Benzene <1.00 Toluene <1.00 Ethylbenzene <1.00 MTBE <1.00 Xylenes (Total)<3.00 MTBE <1.00 1,2-DCA <1.00 EDB <1.00 MW-6 Date 7/20/2022 Benzene <1.00 Toluene <1.00 Ethylbenzene <1.00 Xylenes (Total)<3.00 MTBE <1.00 1,2-DCA <1.00 EDB <1.00 MW-7 Date 7/19/2022 Benzene Toluene 53.8 Ethylbenzene 1,300 Xylenes (Total)823 MTBE 3,310 1,2-DCA 120 EDB <50 5,930 MW-8 Date 7/20/2022 Benzene 23,800 Toluene 12,100 J Ethylbenzene 1,820 Xylenes (Total)9,120 MTBE <25.0 1,2-DCA 1,240 EDB 222 J BOLD [ ] MTBE NOTE: 1.RESULTS REPORTED IN MICROGRAMS PER LITER (µg/L). MW-9 Date 7/20/2022 Benzene 4,250 Toluene <1,000 Ethylbenzene 1,000 J Xylenes (Total)<3,000 MTBE 6,950 1,2-DCA <1,000 EDB <1,000 1,2-DICHLOROETHANE ETHYLENE DIBROMIDEEDB 1,2-DCA Analytes GCL (ug/l) Benzene 5,000 Toluene 260,000 Ethylbenzene 84,500 Xylenes (Total)85,500 MTBE 20,000 1,2-DCA 400 EDB 50 ZAKI ORIENTAL RUGS W. GRI M E S A V E N U E 60' R/W BRICK BUILDING S. ELM STREET68' R/W TAYLOR AVE N U E VARIABLE WI D T H R / W S. MAIN STREET100' R/W MW-3 <1.0 MW-5<1.0 MW-6<1.0 MW-1 <1.0 5,000 500 MW-29,280 MW-823,800 MW-75,930 MW-94,250 MW-4D<1.0*IMAGES: Arcadis Logo_2021.PNG GEN-X-IMAGE1.jpgXREFS:PROJECTNAME: ----C:\Users\jlharris\ACCDocs\Arcadis\AUS-CHEVRON-205513-HIGH POINT North Carolina\Project Files\2023\01-In Progress\01-DWG\GWM-3Q22-F06-BENZ.dwg LAYOUT: 6 SAVED: 1/10/2023 9:14 AM ACADVER: 24.2S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: PLTFULL.CTB PLOTTED: 1/12/20238:14 PM BY: HARRIS, JESSCHEVRON FACILITY #205513 600 SOUTH MAIN STREET HIGH POINT, NORTH CAROLINA 6 FIGURE 0 GRAPHIC SCALE 100'200' SOURCE: Base map digitized from 'WELL LOCATION SURVEY' provided by 'Taylor Wiseman & Taylor', 4101-F Stuart Andrew Blvd., Charlotte, NC. (704) 527-2535, map date June 30, 2005, map scale 1"=50'. Wells surveyed by Taylor Wiseman & Taylor 11/23/2021. Aerial image from Google Earth Pro. 1.RESULTS REPORTED IN MICROGRAMS PER LITER (µg/L). 2.GROUNDWATER SAMPLES COLLECTED JULY 18-20, 2022. 3.GROSS CONTAMINANT LEVEL FOR BENZENE IS 5,000 μg/L. PROPERTY LINE SHALLOW MONITORING WELL DEEP MONITORING WELL BENZENE CONCENTRATION (µg/L) BENZENE CONCENTRATION CONTOUR (µg/L, DASHED WHERE INFERRED) LESS THAN REPORTING LIMIT SHOWN MONITORING WELL MW-4D NOT USED FOR CONTOURING BECAUSE IT IS SCREENED IN A DEEPER HYDROSTRATIGRAPHIC UNIT LEGEND NOTES: BENZENE ISOCONCENTRATION CONTOUR MAP 2,730 500 * < ZAKI ORIENTAL RUGS W. GRI M E S A V E N U E 60' R/W BRICK BUILDING S. ELM STREET68' R/W TAYLOR AVE N U E VARIABLE WI D T H R / W S. MAIN STREET100' R/W MW-3 <1.0 MW-5<1.0 MW-6<1.0 MW-1 <1.0 40 MW-2147 MW-81,240 MW-7 120 MW-9<1,000 MW-4D1.19 400 IMAGES: Arcadis Logo_2021.PNG GEN-X-IMAGE1.jpgXREFS:PROJECTNAME: ----C:\Users\jlharris\ACCDocs\Arcadis\AUS-CHEVRON-205513-HIGH POINT North Carolina\Project Files\2023\01-In Progress\01-DWG\GWM-3Q22-F07-12DCA.dwg LAYOUT: 7 SAVED: 1/10/2023 9:18 AM ACADVER: 24.2S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: PLTFULL.CTB PLOTTED: 1/12/20238:16 PM BY: HARRIS, JESSCHEVRON FACILITY #205513 600 SOUTH MAIN STREET HIGH POINT, NORTH CAROLINA 7 FIGURE 0 GRAPHIC SCALE 100'200' 1,2-DCA ISOCONCENTRATION CONTOUR MAP 1.RESULTS REPORTED IN MICROGRAMS PER LITER (µg/L). 2.GROUNDWATER SAMPLES COLLECTED JULY 18-20, 2022. 3.GROSS CONTAMINANT LEVEL FOR 1,2-DCA IS 400 μg/L. PROPERTY LINE SHALLOW MONITORING WELL DEEP MONITORING WELL 1,2-DCA CONCENTRATION (µg/L) 1,2-DCA CONCENTRATION CONTOUR (µg/L, DASHED WHERE INFERRED) 1,2-DICHLOROETHANE LESS THAN REPORTING LIMIT SHOWN MONITORING WELL MW-4D NOT USED FOR CONTOURING BECAUSE IT IS SCREENED IN A DEEPER HYDROSTRATIGRAPHIC UNIT LEGEND NOTES: 743 40 1,2-DCA < * SOURCE: Base map digitized from 'WELL LOCATION SURVEY' provided by 'Taylor Wiseman & Taylor', 4101-F Stuart Andrew Blvd., Charlotte, NC. (704) 527-2535, map date June 30, 2005, map scale 1"=50'. Wells surveyed by Taylor Wiseman & Taylor 11/23/2021. Aerial image from Google Earth Pro. ZAKI ORIENTAL RUGS W. GRI M E S A V E N U E 60' R/W BRICK BUILDING S. ELM STREET68' R/W TAYLOR AVE N U E VARIABLE WI D T H R / W S. MAIN STREET100' R/W MW-3 <1.0 MW-5<1.0 MW-6<1.0 MW-1 <1.0 MW-2<200 MW-7<50 MW-4D<1.0*50 5 MW-8 222 MW-9<1,000 IMAGES: Arcadis Logo_2021.PNG GEN-X-IMAGE1.jpgXREFS:PROJECTNAME: ----C:\Users\jlharris\ACCDocs\Arcadis\AUS-CHEVRON-205513-HIGH POINT North Carolina\Project Files\2023\01-In Progress\01-DWG\GWM-3Q22-F08-EDB.dwg LAYOUT: 8 SAVED: 1/10/2023 9:18 AM ACADVER: 24.2S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: PLTFULL.CTB PLOTTED: 1/12/20238:18 PM BY: HARRIS, JESSCHEVRON FACILITY #205513 600 SOUTH MAIN STREET HIGH POINT, NORTH CAROLINA 8 FIGURE 0 GRAPHIC SCALE 100'200' EDB ISOCONCENTRATION CONTOUR MAP SOURCE: Base map digitized from 'WELL LOCATION SURVEY' provided by 'Taylor Wiseman & Taylor', 4101-F Stuart Andrew Blvd., Charlotte, NC. (704) 527-2535, map date June 30, 2005, map scale 1"=50'. Wells surveyed by Taylor Wiseman & Taylor 11/23/2021. Aerial image from Google Earth Pro. 1.RESULTS REPORTED IN MICROGRAMS PER LITER (µg/L). 2.GROUNDWATER SAMPLES COLLECTED JULY 18-20, 2022. 3.GROSS CONTAMINANT LEVEL FOR EDB IS 50 μg/L. PROPERTY LINE SHALLOW MONITORING WELL DEEP MONITORING WELL EDB CONCENTRATION (µg/L) EDB CONCENTRATION CONTOUR (µg/L, DASHED WHERE INFERRED) ETHYLENE DIBROMIDE LESS THAN REPORTING LIMIT SHOWN LESS THAN ESTIMATED REPORTING LIMIT LEGEND NOTES: 11.4 5 EDB < * Appendix A Regulatory Correspondence June 23, 2022 Chevron Products Company Attn: Christine Lametrie 1400 Smith Street Houston, TX 77022-7327 Re: Acknowledgement of Report Receipt Iloco Mart – High Point - B 500 S. Main Street High Point, Guilford County Incident Number: 14873 Risk Classification: Intermediate Ranking: I140D Dear Ms. Lametrie: The UST Section, Division of Waste Management, is in receipt of the report dated May 27, 2022. The report will be reviewed and maintained in the Guilford County Department of Health and Human Services Office. Based on the high contaminant concentrations in the groundwater at the site, our office requests a remedial strategy be evaluated for the site. Please include the evaluation of the proposed remedial strategy in the next semi-annual groundwater monitoring and sampling event to be conducted in July 2022. If you have questions regarding the information contained in this letter, please contact Jordan Lerew at the Guilford County Department of Health and Human Services, 400 W. Market Street, Suite 300, Greensboro, NC 27401 or (336) 641-3541. Sincerely, James W. Brown Interim Regional Supervisor Winston-Salem, Regional Office UST Section, Division of Waste Management, NCDEQ Appendix B Groundwater Sampling Field Logs Well ID Date Static Water Level (ft bmp) Total Depth (ft bmp) PID Reading (ppm) Comments MW-2 07/19/2022 28.12 37.00 --DTW on 7/18 0855, DTB on 7/19 post-sampling, DTW on 7/19 with pump (pre-purge) 27.89. On older wells (MW-1 through MW-6), advised to use turbidity limit of <10 NTU rather than 5 for stabilization criteriaMW-4D 07/20/2022 28.76 57.70 --DTW on 7/18- with pump on 7/19 DTQ 28.71MW-6 07/20/2022 29.9 40.01 --Loss of data due to iPad loss- wrote down final parameters (stable) due to overheating, excluding final DTWMW-7 07/19/2022 29.02 37.28 --No lock on well cap; missing initial purge field parameters because YSI DO needed troubleshooting (replaced before next well). DTW taken 7/18, DTB taken after sampling.MW-8 07/20/2022 28.65 37.10 --DTW on 7/18, DTB after sampling. DTW (with pump, pre-purge) on 7/20 28.47 ft btocMW-9 07/20/2022 28.72 37.40 --Notes about location (and location vs VP-1 and VP-2) sent to PM ft-bmp = feet below measuring point ND = Not Detected PID = Photoionization Detector Reading ppm = parts per million -- = Not Recorded 09:20 ND -- 09:10 ND -- 10:10 ND -- 12:00 ND -- 08:55 ND -- 08:50 ND -- Gauging Equipment:Interface Probe Gauging Time Depth to Product (ft LNAPL Removed (gal) Measuring Point:Top of Casing Date(s): 07/19/2022, 07/20/2022 Sampler(s): David Rosen Client: Chevron Site ID:205513 Site Location:High Point, North Carolina Groundwater Gauging Log Project Number 30064349 Project Number 30064349 Well ID MW-2 Date 7/19/2022 Site Location High Point, North Carolina Site ID 205513 Weather (°F)Clear Sampled by David Rosen Measuring Point Description Top of Casing Screen Depth Interval (ft-bmp)22 to 37 Casing Diameter (in.) 2 Well Casing Material PVC Static Water Level (ft-bmp)28.12 Total Depth (ft-bmp)37 Water Column (ft) 8.88 Gallons in Well 1.44 Water Quality Meter Make/Model Hach 2100Q,YSI Pro Plus Purge Method Low-Flow Sample Method Grab Sample Time 19:35 Purge Start 18:50 Purge End 19:30 Well Volumes Purged 0.56 Gallons Purged 0.80 Total Purge Time (h:m) 0:40 Sample ID MW-2-W- 20220719 Duplicate ID MS, MSD Evacuation Equipment Bladder Appearance Time Rate (ml/min) Depth to Water (ft) pH (standard units) Conductivity (mS/cm) Turbidity (NTU) Dissolved Oxygen (mg/L) Temperature (°C)Redox (mV)Color Odor 18:55 100 28.21 5.97 0.760 34.4 0.80 25.00 -41.9 Clear Moderate 19:00 75 28.27 5.92 0.740 37.2 1.03 24.60 -42.5 Clear Moderate 19:05 50 28.28 5.97 0.730 24.4 0.95 26.30 -43.9 Clear Moderate 19:10 50 28.28 6.01 0.740 20.1 0.91 27.50 -43.8 Clear Moderate 19:15 50 28.28 6.04 0.740 15.7 0.90 27.70 -42.2 Clear Moderate 19:20 50 28.28 6.05 0.740 13.6 0.96 27.70 -40.5 Clear Moderate 19:25 50 28.28 6.05 0.750 10.6 0.94 27.30 -37.9 Clear Moderate 19:30 50 28.28 6.05 0.750 9.4 0.94 27.00 -37.9 Clear Moderate Comments:DTW on 7/18 0855, DTB on 7/19 post-sampling, DTW on 7/19 with pump (pre-purge) 27.89. On older wells (MW-1 through MW-6), advised to use turbidity limit of <10 NTU rather than 5 for stabilization criteria Well Casing Volume Conversion Well diameter (in.) = gallons per foot 1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47 1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65 Sample Information Sample ID:MW-2-W-20220719 Sample Time:19:35 Sample Depth (ft-bmp):30 Analytes and Methods:See Chain-of-Custody. ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts in. = inches NTU = Nephelometric Turbidity Unit °F = degrees Fahrenheit ft = feet mg/L = milligrams per liter °C = degrees Celsius mL/min = milliliters per minute PVC = Polyvinyl Chloride -- = Not Recorded Chevron Groundwater Sampling Form Project Number 30064349 Well ID MW-4D Date 7/20/2022 Site Location High Point, North Carolina Site ID 205513 Weather (°F)Clear Sampled by David Rosen Measuring Point Description Top of Casing Screen Depth Interval (ft-bmp)53 to 58 Casing Diameter (in.) 6 Well Casing Material -- Static Water Level (ft-bmp)28.76 Total Depth (ft-bmp)57.7 Water Column (ft) 28.94 Gallons in Well 42.32 Water Quality Meter Make/Model Hach 2100Q,YSI Pro Plus Purge Method Low-Flow Sample Method Grab Sample Time 10:30 Purge Start 10:01 Purge End 10:25 Well Volumes Purged 0.05 Gallons Purged 2.00 Total Purge Time (h:m) 0:24 Sample ID MW-4D-W- 20220720 Duplicate ID -- Evacuation Equipment Bladder Appearance Time Rate (ml/min) Depth to Water (ft) pH (standard units) Conductivity (mS/cm) Turbidity (NTU) Dissolved Oxygen (mg/L) Temperature (°C)Redox (mV)Color Odor 10:05 150 28.70 5.83 0.367 222 5.63 21.70 125.3 Clear Moderate 10:10 50 28.71 5.79 0.373 205 5.13 22.70 117.6 Clear Moderate 10:15 50 28.70 5.81 0.379 167 4.86 24.20 111.3 Clear Moderate 10:20 50 28.72 5.81 0.382 174 4.77 24.60 107.4 Clear Moderate 10:25 50 28.72 5.82 0.381 162 4.68 25.10 104.8 Clear Moderate Comments:DTW on 7/18- with pump on 7/19 DTQ 28.71 Well Casing Volume Conversion Well diameter (in.) = gallons per foot 1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47 1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65 Sample Information Sample ID:MW-4D-W-20220720 Sample Time:10:30 Sample Depth (ft-bmp):55 Analytes and Methods:See Chain-of-Custody. ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts in. = inches NTU = Nephelometric Turbidity Unit °F = degrees Fahrenheit ft = feet mg/L = milligrams per liter °C = degrees Celsius mL/min = milliliters per minute PVC = Polyvinyl Chloride -- = Not Recorded Chevron Groundwater Sampling Form Project Number 30064349 Well ID MW-6 Date 7/20/2022 Site Location High Point, North Carolina Site ID 205513 Weather (°F)Clear Sampled by David Rosen Measuring Point Description Top of Casing Screen Depth Interval (ft-bmp)25 to 40 Casing Diameter (in.) 2 Well Casing Material PVC Static Water Level (ft-bmp)29.9 Total Depth (ft-bmp)40.01 Water Column (ft) 10.11 Gallons in Well 1.64 Water Quality Meter Make/Model Hach 2100Q,YSI Pro Plus Purge Method Low-Flow Sample Method Grab Sample Time 08:50 Purge Start 08:00 Purge End 08:45 Well Volumes Purged 1.22 Gallons Purged 2.00 Total Purge Time (h:m) 0:45 Sample ID MW-6-W- 20220720 Duplicate ID -- Evacuation Equipment Bladder Appearance Time Rate (ml/min) Depth to Water (ft) pH (standard units) Conductivity (mS/cm) Turbidity (NTU) Dissolved Oxygen (mg/L) Temperature (°C)Redox (mV)Color Odor 08:45 0 0.00 5.65 0.102 34.8 5.32 22.40 166.8 Clear None Comments:Loss of data due to iPad loss- wrote down final parameters (stable) due to overheating, excluding final DTW Well Casing Volume Conversion Well diameter (in.) = gallons per foot 1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47 1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65 Sample Information Sample ID:MW-6-W-20220720 Sample Time:08:50 Sample Depth (ft-bmp):35 Analytes and Methods:See Chain-of-Custody. ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts in. = inches NTU = Nephelometric Turbidity Unit °F = degrees Fahrenheit ft = feet mg/L = milligrams per liter °C = degrees Celsius mL/min = milliliters per minute PVC = Polyvinyl Chloride -- = Not Recorded Chevron Groundwater Sampling Form Project Number 30064349 Well ID MW-7 Date 7/19/2022 Site Location High Point, North Carolina Site ID 205513 Weather (°F)Clear Sampled by David Rosen Measuring Point Description Top of Casing Screen Depth Interval (ft-bmp)22 to 37 Casing Diameter (in.) 2 Well Casing Material PVC Static Water Level (ft-bmp)29.02 Total Depth (ft-bmp)37.28 Water Column (ft) 8.26 Gallons in Well 1.34 Water Quality Meter Make/Model Hach 2100Q,YSI Pro Plus Purge Method Low-Flow Sample Method Grab Sample Time 13:50 Purge Start 12:30 Purge End 13:45 Well Volumes Purged 2.24 Gallons Purged 3.00 Total Purge Time (h:m) 1:15 Sample ID MW-7-W- 20220719 Duplicate ID -- Evacuation Equipment Bladder Appearance Time Rate (ml/min) Depth to Water (ft) pH (standard units) Conductivity (mS/cm) Turbidity (NTU) Dissolved Oxygen (mg/L) Temperature (°C)Redox (mV)Color Odor 13:30 100 29.76 6.75 0.610 28.0 2.63 28.20 -13.8 Clear Mild 13:35 100 29.75 6.75 0.580 19.8 2.58 28.00 -15.4 Clear Mild 13:40 100 29.76 6.75 0.570 19.6 2.58 28.00 -16.6 Clear Mild 13:45 100 29.76 6.75 0.580 19.3 2.57 28.00 -17.5 Clear Mild Comments:No lock on well cap; missing initial purge field parameters because YSI DO needed troubleshooting (replaced before next well). DTW taken 7/18, DTB taken after sampling. Well Casing Volume Conversion Well diameter (in.) = gallons per foot 1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47 1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65 Sample Information Sample ID:MW-7-W-20220719 Sample Time:13:50 Sample Depth (ft-bmp):33 Analytes and Methods:See Chain-of-Custody. ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts in. = inches NTU = Nephelometric Turbidity Unit °F = degrees Fahrenheit ft = feet mg/L = milligrams per liter °C = degrees Celsius mL/min = milliliters per minute PVC = Polyvinyl Chloride -- = Not Recorded Chevron Groundwater Sampling Form Project Number 30064349 Well ID MW-8 Date 7/20/2022 Site Location High Point, North Carolina Site ID 205513 Weather (°F)Clear Sampled by David Rosen Measuring Point Description Top of Casing Screen Depth Interval (ft-bmp)22 to 37 Casing Diameter (in.) 2 Well Casing Material PVC Static Water Level (ft-bmp)28.65 Total Depth (ft-bmp)37.1 Water Column (ft) 8.45 Gallons in Well 1.37 Water Quality Meter Make/Model Hach 2100Q,YSI Pro Plus Purge Method Low-Flow Sample Method Grab Sample Time 13:25 Purge Start 12:50 Purge End 13:20 Well Volumes Purged 0.77 Gallons Purged 1.05 Total Purge Time (h:m) 0:30 Sample ID MW-8-W- 20220720 Duplicate ID -- Evacuation Equipment Bladder Appearance Time Rate (ml/min) Depth to Water (ft) pH (standard units) Conductivity (mS/cm) Turbidity (NTU) Dissolved Oxygen (mg/L) Temperature (°C)Redox (mV)Color Odor 13:00 125 28.77 5.93 0.421 21.3 0.38 28.70 -33.5 Clear Strong 13:05 60 28.84 5.92 0.416 14.8 0.35 28.20 -34.3 Clear Strong 13:10 60 28.82 5.99 0.421 12.9 0.28 32.20 -38.8 Clear Strong 13:15 60 28.84 6.01 0.424 11.0 0.24 33.40 -44 Clear Strong 13:20 60 28.84 6.02 0.431 9.4 0.21 33.20 -46.2 Clear Strong Comments:DTW on 7/18, DTB after sampling. DTW (with pump, pre-purge) on 7/20 28.47 ft btoc Well Casing Volume Conversion Well diameter (in.) = gallons per foot 1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47 1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65 Sample Information Sample ID:MW-8-W-20220720 Sample Time:13:25 Sample Depth (ft-bmp):32 Analytes and Methods:See Chain-of-Custody. ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts in. = inches NTU = Nephelometric Turbidity Unit °F = degrees Fahrenheit ft = feet mg/L = milligrams per liter °C = degrees Celsius mL/min = milliliters per minute PVC = Polyvinyl Chloride -- = Not Recorded Chevron Groundwater Sampling Form Project Number 30064349 Well ID MW-9 Date 7/20/2022 Site Location High Point, North Carolina Site ID 205513 Weather (°F)Clear Sampled by David Rosen Measuring Point Description Top of Casing Screen Depth Interval (ft-bmp)22 to 37 Casing Diameter (in.) 2 Well Casing Material PVC Static Water Level (ft-bmp)28.72 Total Depth (ft-bmp)37.4 Water Column (ft) 8.68 Gallons in Well 1.41 Water Quality Meter Make/Model Hach 2100Q,YSI Pro Plus Purge Method Low-Flow Sample Method Grab Sample Time 12:05 Purge Start 11:22 Purge End 12:00 Well Volumes Purged 0.71 Gallons Purged 1.00 Total Purge Time (h:m) 0:38 Sample ID MW-9-W- 20220720 Duplicate ID -- Evacuation Equipment Bladder Appearance Time Rate (ml/min) Depth to Water (ft) pH (standard units) Conductivity (mS/cm) Turbidity (NTU) Dissolved Oxygen (mg/L) Temperature (°C)Redox (mV)Color Odor 11:30 150 28.80 6.23 0.503 25.4 0.55 24.50 -64.8 Clear Strong 11:35 60 28.89 6.24 0.498 18.0 0.37 25.20 -70.8 Clear Strong 11:40 60 28.97 6.24 0.500 16.9 0.32 25.50 -74.1 Clear Strong 11:45 60 29.04 6.23 0.490 14.6 0.27 26.40 -75.6 Clear Strong 11:50 60 29.08 6.22 0.480 13.3 0.28 27.50 -76.9 Clear Strong 11:55 60 29.12 6.21 0.480 10.3 0.26 28.60 -78.1 Clear Strong 12:00 60 29.16 6.22 0.480 9.4 0.24 28.90 -79.7 Clear Strong Comments:Notes about location (and location vs VP-1 and VP-2) sent to PM Well Casing Volume Conversion Well diameter (in.) = gallons per foot 1 = 0.04 1.5 = 0.09 2.5 = 0.26 3.5 = 0.50 6 = 1.47 1.25 = 0.06 2 = 0.16 3 = 0.37 4 = 0.65 Sample Information Sample ID:MW-9-W-20220720 Sample Time:12:05 Sample Depth (ft-bmp):32 Analytes and Methods:See Chain-of-Custody. ft-bmp = feet below measuring point mS/cm = milliSiemens per centimeter mV = millivolts in. = inches NTU = Nephelometric Turbidity Unit °F = degrees Fahrenheit ft = feet mg/L = milligrams per liter °C = degrees Celsius mL/min = milliliters per minute PVC = Polyvinyl Chloride -- = Not Recorded Chevron Groundwater Sampling Form Appendix C Laboratory Analytical and Validation Reports ANALYTICAL REPORT August 08, 2022 Arcadis - Chevron - NC Sample Delivery Group:L1517676 Samples Received:07/22/2022 Project Number:30064349 Description:Pod 2 - High Point, NC #205513 Site:205513 Report To:Andrew DeMarco 801 Corporate Center Drive Suite 300 Raleigh, NC 27607 Entire Report Reviewed By: August 08, 2022 [Preliminary Report] Chris McCord Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 1 of 44 August 08, 2022 Chris McCord Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 1 of 44 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 MW-1-W-20220718 L1517676-01 6 MW-2-W-20220719 L1517676-02 8 MW-3-W-20220718 L1517676-03 10 MW-4D-W-20220720 L1517676-04 12 MW-5-W-20220719 L1517676-05 14 MW-6-W-20220720 L1517676-06 16 MW-7-W-20220719 L1517676-07 18 MW-8-W-20220720 L1517676-08 20 MW-9-W-20220720 L1517676-09 22 DUP-01-W-20220718 L1517676-10 24 FB-W-20220720 L1517676-11 26 TB-01-W-20220718 L1517676-12 28 Qc: Quality Control Summary 30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 30 Gl: Glossary of Terms 41 Al: Accreditations & Locations 42 Sc: Sample Chain of Custody 43 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 2 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 2 of 44 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-1-W-20220718 L1517676-01 GW David Rosen 07/18/22 15:25 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 1 07/25/22 13:33 07/25/22 13:33 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1 08/01/22 17:59 08/01/22 17:59 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time MW-2-W-20220719 L1517676-02 GW David Rosen 07/19/22 19:35 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 200 07/25/22 12:16 07/25/22 12:16 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 200 08/01/22 20:32 08/01/22 20:32 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time MW-3-W-20220718 L1517676-03 GW David Rosen 07/18/22 18:10 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 1 07/25/22 13:52 07/25/22 13:52 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1 08/01/22 18:21 08/01/22 18:21 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time MW-4D-W-20220720 L1517676-04 GW David Rosen 07/20/22 10:30 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 1 07/25/22 14:11 07/25/22 14:11 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1 08/01/22 18:42 08/01/22 18:42 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time MW-5-W-20220719 L1517676-05 GW David Rosen 07/19/22 10:20 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 1 07/25/22 14:30 07/25/22 14:30 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1 08/01/22 19:04 08/01/22 19:04 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time MW-6-W-20220720 L1517676-06 GW David Rosen 07/20/22 08:50 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 1 07/25/22 14:49 07/25/22 14:49 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1 08/01/22 19:26 08/01/22 19:26 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time MW-7-W-20220719 L1517676-07 GW David Rosen 07/19/22 13:50 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 50 07/25/22 16:44 07/25/22 16:44 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 50 08/01/22 20:54 08/01/22 20:54 JCP Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 3 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 3 of 44 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-8-W-20220720 L1517676-08 GW David Rosen 07/20/22 13:25 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 25 07/25/22 17:03 07/25/22 17:03 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 250 08/01/22 21:16 08/01/22 21:16 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time MW-9-W-20220720 L1517676-09 GW David Rosen 07/20/22 12:05 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1000 08/01/22 21:38 08/01/22 21:38 JCP Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1904352 1000 08/02/22 21:47 08/02/22 21:47 ADM Mt. Juliet, TN Collected by Collected date/time Received date/time DUP-01-W-20220718 L1517676-10 GW David Rosen 07/18/22 00:00 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 1 07/25/22 15:08 07/25/22 15:08 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1 08/01/22 19:48 08/01/22 19:48 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time FB-W-20220720 L1517676-11 GW David Rosen 07/20/22 12:45 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 1 07/25/22 11:38 07/25/22 11:38 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1 08/01/22 20:10 08/01/22 20:10 JCP Mt. Juliet, TN Collected by Collected date/time Received date/time TB-01-W-20220718 L1517676-12 GW David Rosen 07/18/22 00:00 07/22/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1900326 1 07/25/22 11:57 07/25/22 11:57 JAH Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1903831 1 08/01/22 16:31 08/01/22 16:31 JCP Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 4 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 4 of 44 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Chris McCord Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 5 of 44 Chris McCord Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 5 of 44 SAMPLE RESULTS - 01 L1517676 MW-1-W-20220718 Collected date/time: 07/18/22 15:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 13:33 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 17:59 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 13:33 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 13:33 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 13:33 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 13:33 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 13:33 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 13:33 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 13:33 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 13:33 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 13:33 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 13:33 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 13:33 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 13:33 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 13:33 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 13:33 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 13:33 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 13:33 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 13:33 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 13:33 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 13:33 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 13:33 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 13:33 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 13:33 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 13:33 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 13:33 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 13:33 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 13:33 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 13:33 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 13:33 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 13:33 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 13:33 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 13:33 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 13:33 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 13:33 WG1900326 Di-isopropyl ether 0.105 J 0.105 1.00 1 07/25/2022 13:33 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 13:33 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 13:33 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 13:33 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 13:33 WG1900326 2-Butanone (MEK)1.51 J 1.19 10.0 1 07/25/2022 13:33 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 13:33 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 13:33 WG1900326 Methyl tert-butyl ether 0.904 J 0.101 1.00 1 08/01/2022 17:59 WG1903831 Naphthalene U 1.00 5.00 1 07/25/2022 13:33 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 13:33 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 13:33 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 13:33 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 13:33 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 13:33 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 13:33 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 13:33 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 13:33 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 13:33 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 13:33 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 13:33 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 6 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 6 of 44 SAMPLE RESULTS - 01 L1517676 MW-1-W-20220718 Collected date/time: 07/18/22 15:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 13:33 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 13:33 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 13:33 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 13:33 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 13:33 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 13:33 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 13:33 WG1900326 (S) Toluene-d8 101 80.0-120 07/25/2022 13:33 WG1900326 (S) Toluene-d8 104 80.0-120 08/01/2022 17:59 WG1903831 (S) 4-Bromofluorobenzene 101 77.0-126 07/25/2022 13:33 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 17:59 WG1903831 (S) 1,2-Dichloroethane-d4 128 70.0-130 07/25/2022 13:33 WG1900326 (S) 1,2-Dichloroethane-d4 87.4 70.0-130 08/01/2022 17:59 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 7 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 7 of 44 SAMPLE RESULTS - 02 L1517676 MW-2-W-20220719 Collected date/time: 07/19/22 19:35 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 J5 2260 10000 200 07/25/2022 12:16 WG1900326 Acrolein U 508 10000 200 08/01/2022 20:32 WG1903831 Acrylonitrile U 134 2000 200 07/25/2022 12:16 WG1900326 Benzene 9280 V 18.8 200 200 07/25/2022 12:16 WG1900326 Bromobenzene U 23.6 200 200 07/25/2022 12:16 WG1900326 Bromodichloromethane U 27.2 200 200 07/25/2022 12:16 WG1900326 Bromoform U 25.8 200 200 07/25/2022 12:16 WG1900326 Bromomethane U 121 1000 200 07/25/2022 12:16 WG1900326 n-Butylbenzene U 31.4 200 200 07/25/2022 12:16 WG1900326 sec-Butylbenzene U 25.0 200 200 07/25/2022 12:16 WG1900326 tert-Butylbenzene U 25.4 200 200 07/25/2022 12:16 WG1900326 Carbon tetrachloride U 25.6 200 200 07/25/2022 12:16 WG1900326 Chlorobenzene U 23.2 200 200 07/25/2022 12:16 WG1900326 Chlorodibromomethane U 28.0 200 200 07/25/2022 12:16 WG1900326 Chloroethane U 38.4 1000 200 07/25/2022 12:16 WG1900326 Chloroform U J4 22.2 1000 200 07/25/2022 12:16 WG1900326 Chloromethane U 192 500 200 07/25/2022 12:16 WG1900326 2-Chlorotoluene U 21.2 200 200 07/25/2022 12:16 WG1900326 4-Chlorotoluene U 22.8 200 200 07/25/2022 12:16 WG1900326 1,2-Dibromo-3-Chloropropane U 55.2 1000 200 07/25/2022 12:16 WG1900326 1,2-Dibromoethane U 25.2 200 200 07/25/2022 12:16 WG1900326 Dibromomethane U 24.4 200 200 07/25/2022 12:16 WG1900326 1,2-Dichlorobenzene U 21.4 200 200 07/25/2022 12:16 WG1900326 1,3-Dichlorobenzene U 22.0 200 200 07/25/2022 12:16 WG1900326 1,4-Dichlorobenzene U 24.0 200 200 07/25/2022 12:16 WG1900326 Dichlorodifluoromethane U 74.8 1000 200 07/25/2022 12:16 WG1900326 1,1-Dichloroethane U 20.0 200 200 07/25/2022 12:16 WG1900326 1,2-Dichloroethane 147 J 16.4 200 200 07/25/2022 12:16 WG1900326 1,1-Dichloroethene U 37.6 200 200 07/25/2022 12:16 WG1900326 cis-1,2-Dichloroethene U 25.2 200 200 07/25/2022 12:16 WG1900326 trans-1,2-Dichloroethene U 29.8 200 200 07/25/2022 12:16 WG1900326 1,2-Dichloropropane U 29.8 200 200 07/25/2022 12:16 WG1900326 1,1-Dichloropropene U 28.4 200 200 07/25/2022 12:16 WG1900326 1,3-Dichloropropane U 22.0 200 200 07/25/2022 12:16 WG1900326 2,2-Dichloropropane U J4 J5 32.2 200 200 07/25/2022 12:16 WG1900326 Di-isopropyl ether 38.5 J 21.0 200 200 07/25/2022 12:16 WG1900326 Ethylbenzene 1560 27.4 200 200 07/25/2022 12:16 WG1900326 Hexachloro-1,3-butadiene U 67.4 200 200 07/25/2022 12:16 WG1900326 Isopropylbenzene 50.6 J 21.0 200 200 07/25/2022 12:16 WG1900326 p-Isopropyltoluene U 24.0 200 200 07/25/2022 12:16 WG1900326 2-Butanone (MEK)U 238 2000 200 07/25/2022 12:16 WG1900326 Methylene Chloride U 86.0 1000 200 07/25/2022 12:16 WG1900326 4-Methyl-2-pentanone (MIBK)U 95.6 2000 200 07/25/2022 12:16 WG1900326 Methyl tert-butyl ether 6510 20.2 200 200 08/01/2022 20:32 WG1903831 Naphthalene 313 J 200 1000 200 07/25/2022 12:16 WG1900326 n-Propylbenzene 149 J 19.9 200 200 07/25/2022 12:16 WG1900326 Styrene 37.7 J 23.6 200 200 07/25/2022 12:16 WG1900326 1,1,1,2-Tetrachloroethane U 29.4 200 200 07/25/2022 12:16 WG1900326 1,1,2,2-Tetrachloroethane U 26.6 200 200 07/25/2022 12:16 WG1900326 Tetrachloroethene U 60.0 200 200 07/25/2022 12:16 WG1900326 Toluene 204 55.6 200 200 07/25/2022 12:16 WG1900326 1,2,3-Trichlorobenzene U 46.0 200 200 07/25/2022 12:16 WG1900326 1,2,4-Trichlorobenzene U 96.2 200 200 07/25/2022 12:16 WG1900326 1,1,1-Trichloroethane U J4 29.8 200 200 07/25/2022 12:16 WG1900326 1,1,2-Trichloroethane U 31.6 200 200 07/25/2022 12:16 WG1900326 Trichloroethene U 38.0 200 200 07/25/2022 12:16 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 8 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 8 of 44 SAMPLE RESULTS - 02 L1517676 MW-2-W-20220719 Collected date/time: 07/19/22 19:35 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U J3 32.0 1000 200 07/25/2022 12:16 WG1900326 1,2,3-Trichloropropane U 47.4 500 200 07/25/2022 12:16 WG1900326 1,2,4-Trimethylbenzene 735 64.4 200 200 07/25/2022 12:16 WG1900326 1,3,5-Trimethylbenzene 186 J 20.8 200 200 07/25/2022 12:16 WG1900326 Vinyl chloride U 46.8 200 200 07/25/2022 12:16 WG1900326 o-Xylene 157 J 34.8 200 200 07/25/2022 12:16 WG1900326 m&p-Xylenes 1060 86.0 400 200 07/25/2022 12:16 WG1900326 (S) Toluene-d8 101 80.0-120 07/25/2022 12:16 WG1900326 (S) Toluene-d8 105 80.0-120 08/01/2022 20:32 WG1903831 (S) 4-Bromofluorobenzene 99.6 77.0-126 07/25/2022 12:16 WG1900326 (S) 4-Bromofluorobenzene 107 77.0-126 08/01/2022 20:32 WG1903831 (S) 1,2-Dichloroethane-d4 123 70.0-130 07/25/2022 12:16 WG1900326 (S) 1,2-Dichloroethane-d4 87.4 70.0-130 08/01/2022 20:32 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 9 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 9 of 44 SAMPLE RESULTS - 03 L1517676 MW-3-W-20220718 Collected date/time: 07/18/22 18:10 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 13:52 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 18:21 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 13:52 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 13:52 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 13:52 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 13:52 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 13:52 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 13:52 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 13:52 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 13:52 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 13:52 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 13:52 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 13:52 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 13:52 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 13:52 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 13:52 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 13:52 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 13:52 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 13:52 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 13:52 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 13:52 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 13:52 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 13:52 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 13:52 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 13:52 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 13:52 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 13:52 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 13:52 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 13:52 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 13:52 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 13:52 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 13:52 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 13:52 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 13:52 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 13:52 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 13:52 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 13:52 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 13:52 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 13:52 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 13:52 WG1900326 2-Butanone (MEK)4.25 J 1.19 10.0 1 07/25/2022 13:52 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 13:52 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 13:52 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 13:52 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 13:52 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 13:52 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 13:52 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 13:52 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 13:52 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 13:52 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 13:52 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 13:52 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 13:52 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 13:52 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 13:52 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 13:52 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 10 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 10 of 44 SAMPLE RESULTS - 03 L1517676 MW-3-W-20220718 Collected date/time: 07/18/22 18:10 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 13:52 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 13:52 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 13:52 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 13:52 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 13:52 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 13:52 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 13:52 WG1900326 (S) Toluene-d8 101 80.0-120 07/25/2022 13:52 WG1900326 (S) Toluene-d8 105 80.0-120 08/01/2022 18:21 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 13:52 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 18:21 WG1903831 (S) 1,2-Dichloroethane-d4 127 70.0-130 07/25/2022 13:52 WG1900326 (S) 1,2-Dichloroethane-d4 87.2 70.0-130 08/01/2022 18:21 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 11 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 11 of 44 SAMPLE RESULTS - 04 L1517676 MW-4D-W-20220720 Collected date/time: 07/20/22 10:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 14:11 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 18:42 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 14:11 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 14:11 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 14:11 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 14:11 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 14:11 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 14:11 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 14:11 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 14:11 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 14:11 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 14:11 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 14:11 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 14:11 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 14:11 WG1900326 Chloroform 0.116 J 0.111 5.00 1 08/01/2022 18:42 WG1903831 Chloromethane U 0.960 2.50 1 07/25/2022 14:11 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 14:11 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 14:11 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 14:11 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 14:11 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 14:11 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 14:11 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 14:11 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 14:11 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 14:11 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 14:11 WG1900326 1,2-Dichloroethane 1.19 0.0819 1.00 1 07/25/2022 14:11 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 14:11 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 14:11 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 14:11 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 14:11 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 14:11 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 14:11 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 14:11 WG1900326 Di-isopropyl ether 1.64 0.105 1.00 1 07/25/2022 14:11 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 14:11 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 14:11 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 14:11 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 14:11 WG1900326 2-Butanone (MEK)3.43 J 1.19 10.0 1 07/25/2022 14:11 WG1900326 Methylene Chloride 0.589 J 0.430 5.00 1 07/25/2022 14:11 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 14:11 WG1900326 Methyl tert-butyl ether 12.6 0.101 1.00 1 08/01/2022 18:42 WG1903831 Naphthalene U 1.00 5.00 1 07/25/2022 14:11 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 14:11 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 14:11 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 14:11 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 14:11 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 14:11 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 14:11 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 14:11 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 14:11 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 14:11 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 14:11 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 14:11 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 12 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 12 of 44 SAMPLE RESULTS - 04 L1517676 MW-4D-W-20220720 Collected date/time: 07/20/22 10:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 14:11 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 14:11 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 14:11 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 14:11 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 14:11 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 14:11 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 14:11 WG1900326 (S) Toluene-d8 103 80.0-120 07/25/2022 14:11 WG1900326 (S) Toluene-d8 105 80.0-120 08/01/2022 18:42 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 14:11 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 18:42 WG1903831 (S) 1,2-Dichloroethane-d4 127 70.0-130 07/25/2022 14:11 WG1900326 (S) 1,2-Dichloroethane-d4 85.7 70.0-130 08/01/2022 18:42 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 13 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 13 of 44 SAMPLE RESULTS - 05 L1517676 MW-5-W-20220719 Collected date/time: 07/19/22 10:20 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 14:30 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 19:04 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 14:30 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 14:30 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 14:30 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 14:30 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 14:30 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 14:30 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 14:30 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 14:30 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 14:30 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 14:30 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 14:30 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 14:30 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 14:30 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 14:30 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 14:30 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 14:30 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 14:30 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 14:30 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 14:30 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 14:30 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 14:30 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 14:30 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 14:30 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 14:30 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 14:30 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 14:30 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 14:30 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 14:30 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 14:30 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 14:30 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 14:30 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 14:30 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 14:30 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 14:30 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 14:30 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 14:30 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 14:30 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 14:30 WG1900326 2-Butanone (MEK)5.30 J 1.19 10.0 1 07/25/2022 14:30 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 14:30 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 14:30 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 14:30 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 14:30 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 14:30 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 14:30 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 14:30 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 14:30 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 14:30 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 14:30 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 14:30 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 14:30 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 14:30 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 14:30 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 14:30 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 14 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 14 of 44 SAMPLE RESULTS - 05 L1517676 MW-5-W-20220719 Collected date/time: 07/19/22 10:20 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 14:30 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 14:30 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 14:30 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 14:30 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 14:30 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 14:30 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 14:30 WG1900326 (S) Toluene-d8 102 80.0-120 07/25/2022 14:30 WG1900326 (S) Toluene-d8 103 80.0-120 08/01/2022 19:04 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 14:30 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 19:04 WG1903831 (S) 1,2-Dichloroethane-d4 126 70.0-130 07/25/2022 14:30 WG1900326 (S) 1,2-Dichloroethane-d4 87.1 70.0-130 08/01/2022 19:04 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 15 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 15 of 44 SAMPLE RESULTS - 06 L1517676 MW-6-W-20220720 Collected date/time: 07/20/22 08:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 14:49 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 19:26 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 14:49 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 14:49 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 14:49 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 14:49 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 14:49 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 14:49 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 14:49 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 14:49 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 14:49 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 14:49 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 14:49 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 14:49 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 14:49 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 14:49 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 14:49 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 14:49 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 14:49 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 14:49 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 14:49 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 14:49 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 14:49 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 14:49 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 14:49 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 14:49 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 14:49 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 14:49 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 14:49 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 14:49 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 14:49 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 14:49 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 14:49 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 14:49 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 14:49 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 14:49 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 14:49 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 14:49 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 14:49 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 14:49 WG1900326 2-Butanone (MEK)1.93 J 1.19 10.0 1 07/25/2022 14:49 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 14:49 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 14:49 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 14:49 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 14:49 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 14:49 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 14:49 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 14:49 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 14:49 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 14:49 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 14:49 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 14:49 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 14:49 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 14:49 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 14:49 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 14:49 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 16 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 16 of 44 SAMPLE RESULTS - 06 L1517676 MW-6-W-20220720 Collected date/time: 07/20/22 08:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 14:49 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 14:49 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 14:49 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 14:49 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 14:49 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 14:49 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 14:49 WG1900326 (S) Toluene-d8 100 80.0-120 07/25/2022 14:49 WG1900326 (S) Toluene-d8 99.9 80.0-120 08/01/2022 19:26 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 14:49 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 19:26 WG1903831 (S) 1,2-Dichloroethane-d4 128 70.0-130 07/25/2022 14:49 WG1900326 (S) 1,2-Dichloroethane-d4 87.2 70.0-130 08/01/2022 19:26 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 17 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 17 of 44 SAMPLE RESULTS - 07 L1517676 MW-7-W-20220719 Collected date/time: 07/19/22 13:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 565 2500 50 07/25/2022 16:44 WG1900326 Acrolein U 127 2500 50 08/01/2022 20:54 WG1903831 Acrylonitrile U 33.6 500 50 07/25/2022 16:44 WG1900326 Benzene 5930 4.71 50.0 50 07/25/2022 16:44 WG1900326 Bromobenzene U 5.90 50.0 50 07/25/2022 16:44 WG1900326 Bromodichloromethane U 6.80 50.0 50 07/25/2022 16:44 WG1900326 Bromoform U 6.45 50.0 50 07/25/2022 16:44 WG1900326 Bromomethane U 30.3 250 50 07/25/2022 16:44 WG1900326 n-Butylbenzene 8.52 J 7.85 50.0 50 07/25/2022 16:44 WG1900326 sec-Butylbenzene 8.12 J 6.25 50.0 50 07/25/2022 16:44 WG1900326 tert-Butylbenzene U 6.35 50.0 50 07/25/2022 16:44 WG1900326 Carbon tetrachloride U 6.40 50.0 50 07/25/2022 16:44 WG1900326 Chlorobenzene U 5.80 50.0 50 07/25/2022 16:44 WG1900326 Chlorodibromomethane U 7.00 50.0 50 07/25/2022 16:44 WG1900326 Chloroethane U 9.60 250 50 07/25/2022 16:44 WG1900326 Chloroform U J4 5.55 250 50 07/25/2022 16:44 WG1900326 Chloromethane U 48.0 125 50 07/25/2022 16:44 WG1900326 2-Chlorotoluene U 5.30 50.0 50 07/25/2022 16:44 WG1900326 4-Chlorotoluene U 5.70 50.0 50 07/25/2022 16:44 WG1900326 1,2-Dibromo-3-Chloropropane U 13.8 250 50 07/25/2022 16:44 WG1900326 1,2-Dibromoethane U 6.30 50.0 50 07/25/2022 16:44 WG1900326 Dibromomethane U 6.10 50.0 50 07/25/2022 16:44 WG1900326 1,2-Dichlorobenzene U 5.35 50.0 50 07/25/2022 16:44 WG1900326 1,3-Dichlorobenzene U 5.50 50.0 50 07/25/2022 16:44 WG1900326 1,4-Dichlorobenzene U 6.00 50.0 50 07/25/2022 16:44 WG1900326 Dichlorodifluoromethane U 18.7 250 50 07/25/2022 16:44 WG1900326 1,1-Dichloroethane U 5.00 50.0 50 07/25/2022 16:44 WG1900326 1,2-Dichloroethane 120 4.09 50.0 50 07/25/2022 16:44 WG1900326 1,1-Dichloroethene U 9.40 50.0 50 07/25/2022 16:44 WG1900326 cis-1,2-Dichloroethene U 6.30 50.0 50 07/25/2022 16:44 WG1900326 trans-1,2-Dichloroethene U 7.45 50.0 50 07/25/2022 16:44 WG1900326 1,2-Dichloropropane U 7.45 50.0 50 07/25/2022 16:44 WG1900326 1,1-Dichloropropene U 7.10 50.0 50 07/25/2022 16:44 WG1900326 1,3-Dichloropropane U 5.50 50.0 50 07/25/2022 16:44 WG1900326 2,2-Dichloropropane U J4 8.05 50.0 50 07/25/2022 16:44 WG1900326 Di-isopropyl ether 32.4 J 5.25 50.0 50 07/25/2022 16:44 WG1900326 Ethylbenzene 1300 6.85 50.0 50 07/25/2022 16:44 WG1900326 Hexachloro-1,3-butadiene U 16.9 50.0 50 07/25/2022 16:44 WG1900326 Isopropylbenzene 56.1 5.25 50.0 50 07/25/2022 16:44 WG1900326 p-Isopropyltoluene U 6.00 50.0 50 07/25/2022 16:44 WG1900326 2-Butanone (MEK)U 59.5 500 50 07/25/2022 16:44 WG1900326 Methylene Chloride U 21.5 250 50 07/25/2022 16:44 WG1900326 4-Methyl-2-pentanone (MIBK)U 23.9 500 50 07/25/2022 16:44 WG1900326 Methyl tert-butyl ether 3310 5.05 50.0 50 08/01/2022 20:54 WG1903831 Naphthalene 302 50.0 250 50 07/25/2022 16:44 WG1900326 n-Propylbenzene 130 4.97 50.0 50 07/25/2022 16:44 WG1900326 Styrene U 5.90 50.0 50 07/25/2022 16:44 WG1900326 1,1,1,2-Tetrachloroethane U 7.35 50.0 50 07/25/2022 16:44 WG1900326 1,1,2,2-Tetrachloroethane U 6.65 50.0 50 07/25/2022 16:44 WG1900326 Tetrachloroethene U 15.0 50.0 50 07/25/2022 16:44 WG1900326 Toluene 53.8 13.9 50.0 50 07/25/2022 16:44 WG1900326 1,2,3-Trichlorobenzene U 11.5 50.0 50 07/25/2022 16:44 WG1900326 1,2,4-Trichlorobenzene U 24.1 50.0 50 07/25/2022 16:44 WG1900326 1,1,1-Trichloroethane U J4 7.45 50.0 50 07/25/2022 16:44 WG1900326 1,1,2-Trichloroethane U 7.90 50.0 50 07/25/2022 16:44 WG1900326 Trichloroethene U 9.50 50.0 50 07/25/2022 16:44 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 18 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 18 of 44 SAMPLE RESULTS - 07 L1517676 MW-7-W-20220719 Collected date/time: 07/19/22 13:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 8.00 250 50 07/25/2022 16:44 WG1900326 1,2,3-Trichloropropane U 11.9 125 50 07/25/2022 16:44 WG1900326 1,2,4-Trimethylbenzene 427 16.1 50.0 50 07/25/2022 16:44 WG1900326 1,3,5-Trimethylbenzene 161 5.20 50.0 50 07/25/2022 16:44 WG1900326 Vinyl chloride U 11.7 50.0 50 07/25/2022 16:44 WG1900326 o-Xylene 197 8.70 50.0 50 07/25/2022 16:44 WG1900326 m&p-Xylenes 626 21.5 100 50 07/25/2022 16:44 WG1900326 (S) Toluene-d8 100 80.0-120 07/25/2022 16:44 WG1900326 (S) Toluene-d8 102 80.0-120 08/01/2022 20:54 WG1903831 (S) 4-Bromofluorobenzene 102 77.0-126 07/25/2022 16:44 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 20:54 WG1903831 (S) 1,2-Dichloroethane-d4 127 70.0-130 07/25/2022 16:44 WG1900326 (S) 1,2-Dichloroethane-d4 84.9 70.0-130 08/01/2022 20:54 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 19 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 19 of 44 SAMPLE RESULTS - 08 L1517676 MW-8-W-20220720 Collected date/time: 07/20/22 13:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone 11100 J 2820 12500 250 08/01/2022 21:16 WG1903831 Acrolein U 635 12500 250 08/01/2022 21:16 WG1903831 Acrylonitrile U 16.8 250 25 07/25/2022 17:03 WG1900326 Benzene 23800 23.5 250 250 08/01/2022 21:16 WG1903831 Bromobenzene U 2.95 25.0 25 07/25/2022 17:03 WG1900326 Bromodichloromethane U 3.40 25.0 25 07/25/2022 17:03 WG1900326 Bromoform U 3.22 25.0 25 07/25/2022 17:03 WG1900326 Bromomethane U 15.1 125 25 07/25/2022 17:03 WG1900326 n-Butylbenzene 8.69 J 3.93 25.0 25 07/25/2022 17:03 WG1900326 sec-Butylbenzene 6.50 J 3.13 25.0 25 07/25/2022 17:03 WG1900326 tert-Butylbenzene U 3.18 25.0 25 07/25/2022 17:03 WG1900326 Carbon tetrachloride U 3.20 25.0 25 07/25/2022 17:03 WG1900326 Chlorobenzene U 2.90 25.0 25 07/25/2022 17:03 WG1900326 Chlorodibromomethane U 3.50 25.0 25 07/25/2022 17:03 WG1900326 Chloroethane U 4.80 125 25 07/25/2022 17:03 WG1900326 Chloroform U J4 2.78 125 25 07/25/2022 17:03 WG1900326 Chloromethane U 24.0 62.5 25 07/25/2022 17:03 WG1900326 2-Chlorotoluene U 2.65 25.0 25 07/25/2022 17:03 WG1900326 4-Chlorotoluene U 2.85 25.0 25 07/25/2022 17:03 WG1900326 1,2-Dibromo-3-Chloropropane U 6.90 125 25 07/25/2022 17:03 WG1900326 1,2-Dibromoethane 222 3.15 25.0 25 07/25/2022 17:03 WG1900326 Dibromomethane U 3.05 25.0 25 07/25/2022 17:03 WG1900326 1,2-Dichlorobenzene U 2.68 25.0 25 07/25/2022 17:03 WG1900326 1,3-Dichlorobenzene U 2.75 25.0 25 07/25/2022 17:03 WG1900326 1,4-Dichlorobenzene U 3.00 25.0 25 07/25/2022 17:03 WG1900326 Dichlorodifluoromethane U 9.35 125 25 07/25/2022 17:03 WG1900326 1,1-Dichloroethane U 2.50 25.0 25 07/25/2022 17:03 WG1900326 1,2-Dichloroethane 1240 2.05 25.0 25 07/25/2022 17:03 WG1900326 1,1-Dichloroethene U 4.70 25.0 25 07/25/2022 17:03 WG1900326 cis-1,2-Dichloroethene U 3.15 25.0 25 07/25/2022 17:03 WG1900326 trans-1,2-Dichloroethene U 3.73 25.0 25 07/25/2022 17:03 WG1900326 1,2-Dichloropropane U 3.73 25.0 25 07/25/2022 17:03 WG1900326 1,1-Dichloropropene U 3.55 25.0 25 07/25/2022 17:03 WG1900326 1,3-Dichloropropane U 2.75 25.0 25 07/25/2022 17:03 WG1900326 2,2-Dichloropropane U J4 4.03 25.0 25 07/25/2022 17:03 WG1900326 Di-isopropyl ether 315 2.63 25.0 25 07/25/2022 17:03 WG1900326 Ethylbenzene 1820 3.43 25.0 25 07/25/2022 17:03 WG1900326 Hexachloro-1,3-butadiene U 8.43 25.0 25 07/25/2022 17:03 WG1900326 Isopropylbenzene 71.4 2.63 25.0 25 07/25/2022 17:03 WG1900326 p-Isopropyltoluene U 3.00 25.0 25 07/25/2022 17:03 WG1900326 2-Butanone (MEK)9210 29.8 250 25 07/25/2022 17:03 WG1900326 Methylene Chloride U 10.7 125 25 07/25/2022 17:03 WG1900326 4-Methyl-2-pentanone (MIBK)325 12.0 250 25 07/25/2022 17:03 WG1900326 Methyl tert-butyl ether U J4 2.53 25.0 25 07/25/2022 17:03 WG1900326 Naphthalene 342 25.0 125 25 07/25/2022 17:03 WG1900326 n-Propylbenzene 199 2.48 25.0 25 07/25/2022 17:03 WG1900326 Styrene U 2.95 25.0 25 07/25/2022 17:03 WG1900326 1,1,1,2-Tetrachloroethane U 3.68 25.0 25 07/25/2022 17:03 WG1900326 1,1,2,2-Tetrachloroethane U 3.33 25.0 25 07/25/2022 17:03 WG1900326 Tetrachloroethene U 7.50 25.0 25 07/25/2022 17:03 WG1900326 Toluene 12100 J4 69.5 250 250 08/01/2022 21:16 WG1903831 1,2,3-Trichlorobenzene U 5.75 25.0 25 07/25/2022 17:03 WG1900326 1,2,4-Trichlorobenzene U 12.0 25.0 25 07/25/2022 17:03 WG1900326 1,1,1-Trichloroethane U J4 3.73 25.0 25 07/25/2022 17:03 WG1900326 1,1,2-Trichloroethane U 3.95 25.0 25 07/25/2022 17:03 WG1900326 Trichloroethene U 4.75 25.0 25 07/25/2022 17:03 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 20 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 20 of 44 SAMPLE RESULTS - 08 L1517676 MW-8-W-20220720 Collected date/time: 07/20/22 13:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 4.00 125 25 07/25/2022 17:03 WG1900326 1,2,3-Trichloropropane U 5.93 62.5 25 07/25/2022 17:03 WG1900326 1,2,4-Trimethylbenzene 1310 8.05 25.0 25 07/25/2022 17:03 WG1900326 1,3,5-Trimethylbenzene 335 2.60 25.0 25 07/25/2022 17:03 WG1900326 Vinyl chloride U 5.85 25.0 25 07/25/2022 17:03 WG1900326 o-Xylene 3120 4.35 25.0 25 07/25/2022 17:03 WG1900326 m&p-Xylenes 6000 10.7 50.0 25 07/25/2022 17:03 WG1900326 (S) Toluene-d8 99.3 80.0-120 07/25/2022 17:03 WG1900326 (S) Toluene-d8 104 80.0-120 08/01/2022 21:16 WG1903831 (S) 4-Bromofluorobenzene 100 77.0-126 07/25/2022 17:03 WG1900326 (S) 4-Bromofluorobenzene 104 77.0-126 08/01/2022 21:16 WG1903831 (S) 1,2-Dichloroethane-d4 125 70.0-130 07/25/2022 17:03 WG1900326 (S) 1,2-Dichloroethane-d4 86.0 70.0-130 08/01/2022 21:16 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 21 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 21 of 44 SAMPLE RESULTS - 09 L1517676 MW-9-W-20220720 Collected date/time: 07/20/22 12:05 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11300 50000 1000 08/01/2022 21:38 WG1903831 Acrolein U 2540 50000 1000 08/01/2022 21:38 WG1903831 Acrylonitrile U 671 10000 1000 08/01/2022 21:38 WG1903831 Benzene 4250 94.1 1000 1000 08/01/2022 21:38 WG1903831 Bromobenzene U 118 1000 1000 08/01/2022 21:38 WG1903831 Bromodichloromethane U 136 1000 1000 08/01/2022 21:38 WG1903831 Bromoform U 129 1000 1000 08/01/2022 21:38 WG1903831 Bromomethane U 605 5000 1000 08/02/2022 21:47 WG1904352 n-Butylbenzene U 157 1000 1000 08/01/2022 21:38 WG1903831 sec-Butylbenzene U 125 1000 1000 08/01/2022 21:38 WG1903831 tert-Butylbenzene U 127 1000 1000 08/01/2022 21:38 WG1903831 Carbon tetrachloride U 128 1000 1000 08/01/2022 21:38 WG1903831 Chlorobenzene U 116 1000 1000 08/01/2022 21:38 WG1903831 Chlorodibromomethane U 140 1000 1000 08/01/2022 21:38 WG1903831 Chloroethane U 192 5000 1000 08/01/2022 21:38 WG1903831 Chloroform U 111 5000 1000 08/01/2022 21:38 WG1903831 Chloromethane U 960 2500 1000 08/01/2022 21:38 WG1903831 2-Chlorotoluene U 106 1000 1000 08/01/2022 21:38 WG1903831 4-Chlorotoluene U 114 1000 1000 08/01/2022 21:38 WG1903831 1,2-Dibromo-3-Chloropropane U 276 5000 1000 08/01/2022 21:38 WG1903831 1,2-Dibromoethane U 126 1000 1000 08/01/2022 21:38 WG1903831 Dibromomethane U 122 1000 1000 08/01/2022 21:38 WG1903831 1,2-Dichlorobenzene U 107 1000 1000 08/01/2022 21:38 WG1903831 1,3-Dichlorobenzene U 110 1000 1000 08/01/2022 21:38 WG1903831 1,4-Dichlorobenzene U 120 1000 1000 08/01/2022 21:38 WG1903831 Dichlorodifluoromethane U 374 5000 1000 08/01/2022 21:38 WG1903831 1,1-Dichloroethane U 100 1000 1000 08/01/2022 21:38 WG1903831 1,2-Dichloroethane U 81.9 1000 1000 08/01/2022 21:38 WG1903831 1,1-Dichloroethene U J4 188 1000 1000 08/01/2022 21:38 WG1903831 cis-1,2-Dichloroethene U J4 126 1000 1000 08/01/2022 21:38 WG1903831 trans-1,2-Dichloroethene U J4 149 1000 1000 08/01/2022 21:38 WG1903831 1,2-Dichloropropane U 149 1000 1000 08/01/2022 21:38 WG1903831 1,1-Dichloropropene U J4 142 1000 1000 08/01/2022 21:38 WG1903831 1,3-Dichloropropane U 110 1000 1000 08/01/2022 21:38 WG1903831 2,2-Dichloropropane U 161 1000 1000 08/01/2022 21:38 WG1903831 Di-isopropyl ether U 105 1000 1000 08/01/2022 21:38 WG1903831 Ethylbenzene 1000 J 137 1000 1000 08/01/2022 21:38 WG1903831 Hexachloro-1,3-butadiene U 337 1000 1000 08/01/2022 21:38 WG1903831 Isopropylbenzene U 105 1000 1000 08/01/2022 21:38 WG1903831 p-Isopropyltoluene U 120 1000 1000 08/01/2022 21:38 WG1903831 2-Butanone (MEK)U 1190 10000 1000 08/01/2022 21:38 WG1903831 Methylene Chloride U J4 430 5000 1000 08/01/2022 21:38 WG1903831 4-Methyl-2-pentanone (MIBK)U 478 10000 1000 08/01/2022 21:38 WG1903831 Methyl tert-butyl ether 6950 101 1000 1000 08/01/2022 21:38 WG1903831 Naphthalene 1240 J 1000 5000 1000 08/02/2022 21:47 WG1904352 n-Propylbenzene U J4 99.3 1000 1000 08/01/2022 21:38 WG1903831 Styrene U 118 1000 1000 08/01/2022 21:38 WG1903831 1,1,1,2-Tetrachloroethane U 147 1000 1000 08/01/2022 21:38 WG1903831 1,1,2,2-Tetrachloroethane U 133 1000 1000 08/01/2022 21:38 WG1903831 Tetrachloroethene U J4 300 1000 1000 08/01/2022 21:38 WG1903831 Toluene U J4 278 1000 1000 08/01/2022 21:38 WG1903831 1,2,3-Trichlorobenzene U 230 1000 1000 08/02/2022 21:47 WG1904352 1,2,4-Trichlorobenzene U 481 1000 1000 08/01/2022 21:38 WG1903831 1,1,1-Trichloroethane U 149 1000 1000 08/01/2022 21:38 WG1903831 1,1,2-Trichloroethane U 158 1000 1000 08/01/2022 21:38 WG1903831 Trichloroethene U J4 190 1000 1000 08/01/2022 21:38 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 22 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 22 of 44 SAMPLE RESULTS - 09 L1517676 MW-9-W-20220720 Collected date/time: 07/20/22 12:05 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 160 5000 1000 08/01/2022 21:38 WG1903831 1,2,3-Trichloropropane U 237 2500 1000 08/01/2022 21:38 WG1903831 1,2,4-Trimethylbenzene U 322 1000 1000 08/01/2022 21:38 WG1903831 1,3,5-Trimethylbenzene U 104 1000 1000 08/01/2022 21:38 WG1903831 Vinyl chloride U 234 1000 1000 08/01/2022 21:38 WG1903831 o-Xylene U 174 1000 1000 08/01/2022 21:38 WG1903831 m&p-Xylenes U 430 2000 1000 08/01/2022 21:38 WG1903831 (S) Toluene-d8 103 80.0-120 08/01/2022 21:38 WG1903831 (S) Toluene-d8 102 80.0-120 08/02/2022 21:47 WG1904352 (S) 4-Bromofluorobenzene 104 77.0-126 08/01/2022 21:38 WG1903831 (S) 4-Bromofluorobenzene 105 77.0-126 08/02/2022 21:47 WG1904352 (S) 1,2-Dichloroethane-d4 85.9 70.0-130 08/01/2022 21:38 WG1903831 (S) 1,2-Dichloroethane-d4 113 70.0-130 08/02/2022 21:47 WG1904352 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 23 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 23 of 44 SAMPLE RESULTS - 10 L1517676 DUP-01-W-20220718 Collected date/time: 07/18/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 15:08 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 19:48 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 15:08 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 15:08 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 15:08 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 15:08 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 15:08 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 15:08 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 15:08 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 15:08 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 15:08 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 15:08 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 15:08 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 15:08 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 15:08 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 15:08 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 15:08 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 15:08 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 15:08 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 15:08 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 15:08 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 15:08 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 15:08 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 15:08 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 15:08 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 15:08 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 15:08 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 15:08 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 15:08 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 15:08 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 15:08 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 15:08 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 15:08 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 15:08 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 15:08 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 15:08 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 15:08 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 15:08 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 15:08 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 15:08 WG1900326 2-Butanone (MEK)1.62 J 1.19 10.0 1 07/25/2022 15:08 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 15:08 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 15:08 WG1900326 Methyl tert-butyl ether 0.875 J 0.101 1.00 1 08/01/2022 19:48 WG1903831 Naphthalene U 1.00 5.00 1 07/25/2022 15:08 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 15:08 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 15:08 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 15:08 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 15:08 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 15:08 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 15:08 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 15:08 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 15:08 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 15:08 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 15:08 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 15:08 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 24 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 24 of 44 SAMPLE RESULTS - 10 L1517676 DUP-01-W-20220718 Collected date/time: 07/18/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 15:08 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 15:08 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 15:08 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 15:08 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 15:08 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 15:08 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 15:08 WG1900326 (S) Toluene-d8 102 80.0-120 07/25/2022 15:08 WG1900326 (S) Toluene-d8 107 80.0-120 08/01/2022 19:48 WG1903831 (S) 4-Bromofluorobenzene 104 77.0-126 07/25/2022 15:08 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 19:48 WG1903831 (S) 1,2-Dichloroethane-d4 126 70.0-130 07/25/2022 15:08 WG1900326 (S) 1,2-Dichloroethane-d4 84.4 70.0-130 08/01/2022 19:48 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 25 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 25 of 44 SAMPLE RESULTS - 11 L1517676 FB-W-20220720 Collected date/time: 07/20/22 12:45 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 11:38 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 20:10 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 11:38 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 11:38 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 11:38 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 11:38 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 11:38 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 11:38 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 11:38 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 11:38 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 11:38 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 11:38 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 11:38 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 11:38 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 11:38 WG1900326 Chloroform U 0.111 5.00 1 08/01/2022 20:10 WG1903831 Chloromethane U 0.960 2.50 1 07/25/2022 11:38 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 11:38 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 11:38 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 11:38 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 11:38 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 11:38 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 11:38 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 11:38 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 11:38 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 11:38 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 11:38 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 11:38 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 11:38 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 11:38 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 11:38 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 11:38 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 11:38 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 11:38 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 11:38 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 11:38 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 11:38 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 11:38 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 11:38 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 11:38 WG1900326 2-Butanone (MEK)U 1.19 10.0 1 07/25/2022 11:38 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 11:38 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 11:38 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 11:38 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 11:38 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 11:38 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 11:38 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 11:38 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 11:38 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 11:38 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 11:38 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 11:38 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 11:38 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 11:38 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 11:38 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 11:38 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 26 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 26 of 44 SAMPLE RESULTS - 11 L1517676 FB-W-20220720 Collected date/time: 07/20/22 12:45 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 11:38 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 11:38 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 11:38 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 11:38 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 11:38 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 11:38 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 11:38 WG1900326 (S) Toluene-d8 103 80.0-120 07/25/2022 11:38 WG1900326 (S) Toluene-d8 101 80.0-120 08/01/2022 20:10 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 11:38 WG1900326 (S) 4-Bromofluorobenzene 101 77.0-126 08/01/2022 20:10 WG1903831 (S) 1,2-Dichloroethane-d4 126 70.0-130 07/25/2022 11:38 WG1900326 (S) 1,2-Dichloroethane-d4 85.4 70.0-130 08/01/2022 20:10 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 27 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 27 of 44 SAMPLE RESULTS - 12 L1517676 TB-01-W-20220718 Collected date/time: 07/18/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 11:57 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 16:31 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 11:57 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 11:57 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 11:57 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 11:57 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 11:57 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 11:57 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 11:57 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 11:57 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 11:57 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 11:57 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 11:57 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 11:57 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 11:57 WG1900326 Chloroform U 0.111 5.00 1 08/01/2022 16:31 WG1903831 Chloromethane U 0.960 2.50 1 07/25/2022 11:57 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 11:57 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 11:57 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 11:57 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 11:57 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 11:57 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 11:57 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 11:57 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 11:57 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 11:57 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 11:57 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 11:57 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 11:57 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 11:57 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 11:57 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 11:57 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 11:57 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 11:57 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 11:57 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 11:57 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 11:57 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 11:57 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 11:57 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 11:57 WG1900326 2-Butanone (MEK)1.95 J 1.19 10.0 1 07/25/2022 11:57 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 11:57 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 11:57 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 11:57 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 11:57 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 11:57 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 11:57 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 11:57 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 11:57 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 11:57 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 11:57 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 11:57 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 11:57 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 11:57 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 11:57 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 11:57 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 28 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 28 of 44 SAMPLE RESULTS - 12 L1517676 TB-01-W-20220718 Collected date/time: 07/18/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 11:57 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 11:57 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 11:57 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 11:57 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 11:57 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 11:57 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 11:57 WG1900326 (S) Toluene-d8 105 80.0-120 07/25/2022 11:57 WG1900326 (S) Toluene-d8 99.9 80.0-120 08/01/2022 16:31 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 11:57 WG1900326 (S) 4-Bromofluorobenzene 100 77.0-126 08/01/2022 16:31 WG1903831 (S) 1,2-Dichloroethane-d4 127 70.0-130 07/25/2022 11:57 WG1900326 (S) 1,2-Dichloroethane-d4 84.5 70.0-130 08/01/2022 16:31 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 29 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 29 of 44 QUALITY CONTROL SUMMARYWG1900326 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,10,11,12 Method Blank (MB) (MB) R3820703-3 07/25/22 11:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acetone U 11.3 50.0 Acrylonitrile U 0.671 10.0 Benzene U 0.0941 1.00 Bromobenzene U 0.118 1.00 Bromodichloromethane U 0.136 1.00 Bromoform U 0.129 1.00 Bromomethane U 0.605 5.00 n-Butylbenzene U 0.157 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butylbenzene U 0.127 1.00 Carbon tetrachloride U 0.128 1.00 Chlorobenzene U 0.116 1.00 Chlorodibromomethane U 0.140 1.00 Chloroethane U 0.192 5.00 Chloroform U 0.111 5.00 Chloromethane U 0.960 2.50 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 Dibromomethane U 0.122 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 Dichlorodifluoromethane U 0.374 5.00 1,1-Dichloroethane U 0.100 1.00 1,2-Dichloroethane U 0.0819 1.00 1,1-Dichloroethene U 0.188 1.00 cis-1,2-Dichloroethene U 0.126 1.00 trans-1,2-Dichloroethene U 0.149 1.00 1,2-Dichloropropane U 0.149 1.00 1,1-Dichloropropene U 0.142 1.00 1,3-Dichloropropane U 0.110 1.00 2,2-Dichloropropane U 0.161 1.00 Di-isopropyl ether U 0.105 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Isopropylbenzene U 0.105 1.00 p-Isopropyltoluene U 0.120 1.00 2-Butanone (MEK)U 1.19 10.0 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 30 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 30 of 44 QUALITY CONTROL SUMMARYWG1900326 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,10,11,12 Method Blank (MB) (MB) R3820703-3 07/25/22 11:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Methylene Chloride U 0.430 5.00 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 n-Propylbenzene U 0.0993 1.00 Styrene U 0.118 1.00 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,4-Trichlorobenzene U 0.481 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2-Trichloroethane U 0.158 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trimethylbenzene U 0.322 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 Vinyl chloride U 0.234 1.00 o-Xylene U 0.174 1.00 m&p-Xylenes U 0.430 2.00 (S) Toluene-d8 102 80.0-120 (S) 4-Bromofluorobenzene 104 77.0-126 (S) 1,2-Dichloroethane-d4 124 70.0-130 Laboratory Control Sample (LCS) (LCS) R3820703-1 07/25/22 05:11 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Acetone 25.0 50.8 203 19.0-160 J4 Acrylonitrile 25.0 29.4 118 55.0-149 Benzene 5.00 5.35 107 70.0-123 Bromobenzene 5.00 5.93 119 73.0-121 Bromodichloromethane 5.00 5.77 115 75.0-120 Bromoform 5.00 4.90 98.0 68.0-132 Bromomethane 5.00 4.71 94.2 10.0-160 n-Butylbenzene 5.00 5.45 109 73.0-125 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 31 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 31 of 44 QUALITY CONTROL SUMMARYWG1900326 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,10,11,12 Laboratory Control Sample (LCS) (LCS) R3820703-1 07/25/22 05:11 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% sec-Butylbenzene 5.00 5.50 110 75.0-125 tert-Butylbenzene 5.00 5.56 111 76.0-124 Carbon tetrachloride 5.00 6.09 122 68.0-126 Chlorobenzene 5.00 4.53 90.6 80.0-121 Chlorodibromomethane 5.00 5.04 101 77.0-125 Chloroethane 5.00 4.77 95.4 47.0-150 Chloroform 5.00 6.31 126 73.0-120 J4 Chloromethane 5.00 4.50 90.0 41.0-142 2-Chlorotoluene 5.00 5.82 116 76.0-123 4-Chlorotoluene 5.00 5.57 111 75.0-122 1,2-Dibromo-3-Chloropropane 5.00 5.65 113 58.0-134 1,2-Dibromoethane 5.00 4.79 95.8 80.0-122 Dibromomethane 5.00 5.52 110 80.0-120 1,2-Dichlorobenzene 5.00 5.27 105 79.0-121 1,3-Dichlorobenzene 5.00 5.08 102 79.0-120 1,4-Dichlorobenzene 5.00 5.09 102 79.0-120 Dichlorodifluoromethane 5.00 5.12 102 51.0-149 1,1-Dichloroethane 5.00 5.74 115 70.0-126 1,2-Dichloroethane 5.00 5.82 116 70.0-128 1,1-Dichloroethene 5.00 6.03 121 71.0-124 cis-1,2-Dichloroethene 5.00 5.51 110 73.0-120 trans-1,2-Dichloroethene 5.00 5.59 112 73.0-120 1,2-Dichloropropane 5.00 5.12 102 77.0-125 1,1-Dichloropropene 5.00 5.56 111 74.0-126 1,3-Dichloropropane 5.00 4.88 97.6 80.0-120 2,2-Dichloropropane 5.00 7.01 140 58.0-130 J4 Di-isopropyl ether 5.00 5.46 109 58.0-138 Ethylbenzene 5.00 4.58 91.6 79.0-123 Hexachloro-1,3-butadiene 5.00 5.82 116 54.0-138 Isopropylbenzene 5.00 5.16 103 76.0-127 p-Isopropyltoluene 5.00 5.42 108 76.0-125 2-Butanone (MEK)25.0 31.5 126 44.0-160 Methylene Chloride 5.00 5.86 117 67.0-120 4-Methyl-2-pentanone (MIBK)25.0 27.1 108 68.0-142 Methyl tert-butyl ether 5.00 6.59 132 68.0-125 J4 Naphthalene 5.00 5.06 101 54.0-135 n-Propylbenzene 5.00 5.96 119 77.0-124 Styrene 5.00 4.93 98.6 73.0-130 1,1,1,2-Tetrachloroethane 5.00 5.22 104 75.0-125 1,1,2,2-Tetrachloroethane 5.00 5.92 118 65.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 32 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 32 of 44 QUALITY CONTROL SUMMARYWG1900326 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,10,11,12 Laboratory Control Sample (LCS) (LCS) R3820703-1 07/25/22 05:11 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Tetrachloroethene 5.00 4.66 93.2 72.0-132 Toluene 5.00 4.71 94.2 79.0-120 1,2,3-Trichlorobenzene 5.00 4.83 96.6 50.0-138 1,2,4-Trichlorobenzene 5.00 5.28 106 57.0-137 1,1,1-Trichloroethane 5.00 6.30 126 73.0-124 J4 1,1,2-Trichloroethane 5.00 4.96 99.2 80.0-120 Trichloroethene 5.00 4.84 96.8 78.0-124 Trichlorofluoromethane 5.00 3.45 69.0 59.0-147 1,2,3-Trichloropropane 5.00 6.10 122 73.0-130 1,2,4-Trimethylbenzene 5.00 5.60 112 76.0-121 1,3,5-Trimethylbenzene 5.00 5.96 119 76.0-122 Vinyl chloride 5.00 4.75 95.0 67.0-131 o-Xylene 5.00 4.90 98.0 80.0-122 m&p-Xylenes 10.0 9.38 93.8 80.0-122 (S) Toluene-d8 104 80.0-120 (S) 4-Bromofluorobenzene 105 77.0-126 (S) 1,2-Dichloroethane-d4 128 70.0-130 L1517676-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1517676-02 07/25/22 12:16 • (MS) R3820703-4 07/25/22 17:41 • (MSD) R3820703-5 07/25/22 18:00 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l %%%%% Acetone 5000 U 10200 7890 204 158 200 10.0-160 J5 25.5 35 Acrylonitrile 5000 U 6000 5460 120 109 200 21.0-160 9.42 32 Benzene 1000 9280 12100 11600 282 232 200 17.0-158 V V 4.22 27 Bromobenzene 1000 U 1230 1260 123 126 200 30.0-149 2.41 28 Bromodichloromethane 1000 U 1200 1220 120 122 200 31.0-150 1.65 27 Bromoform 1000 U 1070 922 107 92.2 200 29.0-150 14.9 29 Bromomethane 1000 U 859 973 85.9 97.3 200 10.0-160 12.4 38 n-Butylbenzene 1000 U 1070 1150 107 115 200 31.0-150 7.21 30 sec-Butylbenzene 1000 U 1090 1200 109 120 200 33.0-155 9.61 29 tert-Butylbenzene 1000 U 1120 1140 112 114 200 34.0-153 1.77 28 Carbon tetrachloride 1000 U 1150 1340 115 134 200 23.0-159 15.3 28 Chlorobenzene 1000 U 905 968 90.5 96.8 200 33.0-152 6.73 27 Chlorodibromomethane 1000 U 1090 1010 109 101 200 37.0-149 7.62 27 Chloroethane 1000 U 858 951 85.8 95.1 200 10.0-160 10.3 30 Chloroform 1000 U 1200 1250 120 125 200 29.0-154 4.08 28 Chloromethane 1000 U 880 945 88.0 94.5 200 10.0-160 7.12 29 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 33 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 33 of 44 QUALITY CONTROL SUMMARYWG1900326 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,10,11,12 L1517676-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1517676-02 07/25/22 12:16 • (MS) R3820703-4 07/25/22 17:41 • (MSD) R3820703-5 07/25/22 18:00 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l %%%%% 2-Chlorotoluene 1000 U 1170 1250 117 125 200 32.0-153 6.61 28 4-Chlorotoluene 1000 U 1140 1170 114 117 200 32.0-150 2.60 28 1,2-Dibromo-3-Chloropropane 1000 U 1260 1210 126 121 200 22.0-151 4.05 34 1,2-Dibromoethane 1000 U 1030 943 103 94.3 200 34.0-147 8.82 27 Dibromomethane 1000 U 1110 1100 111 110 200 30.0-151 0.905 27 1,2-Dichlorobenzene 1000 U 992 1040 99.2 104 200 34.0-149 4.72 28 1,3-Dichlorobenzene 1000 U 994 1050 99.4 105 200 36.0-146 5.48 27 1,4-Dichlorobenzene 1000 U 987 1010 98.7 101 200 35.0-142 2.30 27 Dichlorodifluoromethane 1000 U 952 1100 95.2 110 200 10.0-160 14.4 29 1,1-Dichloroethane 1000 U 1120 1170 112 117 200 25.0-158 4.37 27 1,2-Dichloroethane 1000 147 1490 1390 134 124 200 29.0-151 6.94 27 1,1-Dichloroethene 1000 U 1090 1250 109 125 200 11.0-160 13.7 29 cis-1,2-Dichloroethene 1000 U 1080 1100 108 110 200 10.0-160 1.83 27 trans-1,2-Dichloroethene 1000 U 1020 1160 102 116 200 17.0-153 12.8 27 1,2-Dichloropropane 1000 U 1060 1060 106 106 200 30.0-156 0.000 27 1,1-Dichloropropene 1000 U 1150 1270 115 127 200 25.0-158 9.92 27 1,3-Dichloropropane 1000 U 1020 1020 102 102 200 38.0-147 0.000 27 2,2-Dichloropropane 1000 U 1300 1550 130 155 200 24.0-152 J5 17.5 29 Di-isopropyl ether 1000 38.5 1150 1170 111 113 200 21.0-160 1.72 28 Ethylbenzene 1000 1560 2780 2770 122 121 200 30.0-155 0.360 27 Hexachloro-1,3-butadiene 1000 U 1100 1220 110 122 200 20.0-154 10.3 34 Isopropylbenzene 1000 50.6 1040 1150 98.9 110 200 28.0-157 10.0 27 p-Isopropyltoluene 1000 U 1110 1200 111 120 200 30.0-154 7.79 29 2-Butanone (MEK)5000 U 7300 5990 146 120 200 10.0-160 19.7 32 Methylene Chloride 1000 U 1130 1130 113 113 200 23.0-144 0.000 28 4-Methyl-2-pentanone (MIBK)5000 U 5820 5350 116 107 200 29.0-160 8.42 29 Methyl tert-butyl ether 1000 6070 8760 8680 269 261 200 28.0-150 V V 0.917 29 Naphthalene 1000 313 1460 1420 115 111 200 12.0-156 2.78 35 n-Propylbenzene 1000 149 1370 1450 122 130 200 31.0-154 5.67 28 Styrene 1000 37.7 952 1060 91.4 102 200 33.0-155 10.7 28 1,1,1,2-Tetrachloroethane 1000 U 968 977 96.8 97.7 200 36.0-151 0.925 29 1,1,2,2-Tetrachloroethane 1000 U 1290 1130 129 113 200 33.0-150 13.2 28 Tetrachloroethene 1000 U 969 1020 96.9 102 200 10.0-160 5.13 27 Toluene 1000 204 1200 1230 99.6 103 200 26.0-154 2.47 28 1,2,3-Trichlorobenzene 1000 U 868 962 86.8 96.2 200 17.0-150 10.3 36 1,2,4-Trichlorobenzene 1000 U 956 971 95.6 97.1 200 24.0-150 1.56 33 1,1,1-Trichloroethane 1000 U 1210 1390 121 139 200 23.0-160 13.8 28 1,1,2-Trichloroethane 1000 U 1060 1000 106 100 200 35.0-147 5.83 27 Trichloroethene 1000 U 1040 1040 104 104 200 10.0-160 0.000 25 Trichlorofluoromethane 1000 U 604 1210 60.4 121 200 17.0-160 J3 66.8 31 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 34 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 34 of 44 QUALITY CONTROL SUMMARYWG1900326 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,10,11,12 L1517676-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1517676-02 07/25/22 12:16 • (MS) R3820703-4 07/25/22 17:41 • (MSD) R3820703-5 07/25/22 18:00 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l %%%%% 1,2,3-Trichloropropane 1000 U 1360 1230 136 123 200 34.0-151 10.0 29 1,2,4-Trimethylbenzene 1000 735 2040 2080 131 134 200 26.0-154 1.94 27 1,3,5-Trimethylbenzene 1000 186 1390 1440 120 125 200 28.0-153 3.53 27 Vinyl chloride 1000 U 832 1030 83.2 103 200 10.0-160 21.3 27 o-Xylene 1000 157 1130 1180 97.3 102 200 45.0-144 4.33 26 m&p-Xylenes 2000 1060 3180 3260 106 110 200 43.0-146 2.48 26 (S) Toluene-d8 99.6 99.4 80.0-120 (S) 4-Bromofluorobenzene 102 101 77.0-126 (S) 1,2-Dichloroethane-d4 128 125 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 35 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 35 of 44 QUALITY CONTROL SUMMARYWG1903831 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R3821687-4 08/01/22 14:42 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acetone U 11.3 50.0 Acrolein U 2.54 50.0 Acrylonitrile U 0.671 10.0 Benzene U 0.0941 1.00 Bromobenzene U 0.118 1.00 Bromodichloromethane U 0.136 1.00 Bromoform U 0.129 1.00 n-Butylbenzene U 0.157 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butylbenzene U 0.127 1.00 Carbon tetrachloride U 0.128 1.00 Chlorobenzene U 0.116 1.00 Chlorodibromomethane U 0.140 1.00 Chloroethane U 0.192 5.00 Chloroform U 0.111 5.00 Chloromethane U 0.960 2.50 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 Dibromomethane U 0.122 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 Dichlorodifluoromethane U 0.374 5.00 1,1-Dichloroethane U 0.100 1.00 1,2-Dichloroethane U 0.0819 1.00 1,1-Dichloroethene U 0.188 1.00 cis-1,2-Dichloroethene U 0.126 1.00 trans-1,2-Dichloroethene U 0.149 1.00 1,2-Dichloropropane U 0.149 1.00 1,1-Dichloropropene U 0.142 1.00 1,3-Dichloropropane U 0.110 1.00 2,2-Dichloropropane U 0.161 1.00 Di-isopropyl ether U 0.105 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Isopropylbenzene U 0.105 1.00 p-Isopropyltoluene U 0.120 1.00 2-Butanone (MEK)U 1.19 10.0 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 36 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 36 of 44 QUALITY CONTROL SUMMARYWG1903831 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,09,10,11,12 Method Blank (MB) (MB) R3821687-4 08/01/22 14:42 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Methylene Chloride U 0.430 5.00 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 Methyl tert-butyl ether U 0.101 1.00 n-Propylbenzene U 0.0993 1.00 Styrene U 0.118 1.00 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 1,2,4-Trichlorobenzene U 0.481 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2-Trichloroethane U 0.158 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trimethylbenzene U 0.322 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 Vinyl chloride U 0.234 1.00 o-Xylene U 0.174 1.00 m&p-Xylenes U 0.430 2.00 (S) Toluene-d8 101 80.0-120 (S) 4-Bromofluorobenzene 101 77.0-126 (S) 1,2-Dichloroethane-d4 84.1 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3821687-1 08/01/22 12:54 • (LCSD) R3821687-2 08/01/22 13:16 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Acetone 25.0 27.0 27.7 108 111 19.0-160 2.56 27 Acrolein 25.0 26.4 25.0 106 100 10.0-160 5.45 26 Acrylonitrile 25.0 26.7 24.6 107 98.4 55.0-149 8.19 20 Benzene 5.00 6.17 6.15 123 123 70.0-123 0.325 20 Bromobenzene 5.00 5.23 5.23 105 105 73.0-121 0.000 20 Bromodichloromethane 5.00 4.80 4.94 96.0 98.8 75.0-120 2.87 20 Bromoform 5.00 4.68 4.86 93.6 97.2 68.0-132 3.77 20 n-Butylbenzene 5.00 5.75 5.87 115 117 73.0-125 2.07 20 sec-Butylbenzene 5.00 5.89 5.85 118 117 75.0-125 0.681 20 tert-Butylbenzene 5.00 6.05 6.13 121 123 76.0-124 1.31 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 37 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 37 of 44 QUALITY CONTROL SUMMARYWG1903831 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,09,10,11,12 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3821687-1 08/01/22 12:54 • (LCSD) R3821687-2 08/01/22 13:16 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Carbon tetrachloride 5.00 5.35 5.76 107 115 68.0-126 7.38 20 Chlorobenzene 5.00 5.97 6.02 119 120 80.0-121 0.834 20 Chlorodibromomethane 5.00 4.71 4.46 94.2 89.2 77.0-125 5.45 20 Chloroethane 5.00 4.63 4.55 92.6 91.0 47.0-150 1.74 20 Chloroform 5.00 5.64 5.76 113 115 73.0-120 2.11 20 Chloromethane 5.00 3.32 3.49 66.4 69.8 41.0-142 4.99 20 2-Chlorotoluene 5.00 5.91 6.06 118 121 76.0-123 2.51 20 4-Chlorotoluene 5.00 5.60 5.56 112 111 75.0-122 0.717 20 1,2-Dibromo-3-Chloropropane 5.00 4.26 4.58 85.2 91.6 58.0-134 7.24 20 1,2-Dibromoethane 5.00 5.37 4.96 107 99.2 80.0-122 7.94 20 Dibromomethane 5.00 5.54 5.32 111 106 80.0-120 4.05 20 1,2-Dichlorobenzene 5.00 5.44 5.35 109 107 79.0-121 1.67 20 1,3-Dichlorobenzene 5.00 5.47 5.41 109 108 79.0-120 1.10 20 1,4-Dichlorobenzene 5.00 5.26 5.70 105 114 79.0-120 8.03 20 Dichlorodifluoromethane 5.00 5.79 5.69 116 114 51.0-149 1.74 20 1,1-Dichloroethane 5.00 5.53 5.62 111 112 70.0-126 1.61 20 1,2-Dichloroethane 5.00 4.59 4.60 91.8 92.0 70.0-128 0.218 20 1,1-Dichloroethene 5.00 6.63 6.75 133 135 71.0-124 J4 J4 1.79 20 cis-1,2-Dichloroethene 5.00 6.05 6.17 121 123 73.0-120 J4 J4 1.96 20 trans-1,2-Dichloroethene 5.00 6.41 6.36 128 127 73.0-120 J4 J4 0.783 20 1,2-Dichloropropane 5.00 5.54 5.85 111 117 77.0-125 5.44 20 1,1-Dichloropropene 5.00 6.45 6.34 129 127 74.0-126 J4 J4 1.72 20 1,3-Dichloropropane 5.00 5.53 5.24 111 105 80.0-120 5.39 20 2,2-Dichloropropane 5.00 4.51 4.53 90.2 90.6 58.0-130 0.442 20 Di-isopropyl ether 5.00 4.73 4.68 94.6 93.6 58.0-138 1.06 20 Ethylbenzene 5.00 5.96 5.84 119 117 79.0-123 2.03 20 Hexachloro-1,3-butadiene 5.00 5.31 5.39 106 108 54.0-138 1.50 20 Isopropylbenzene 5.00 6.12 6.07 122 121 76.0-127 0.820 20 p-Isopropyltoluene 5.00 5.95 6.15 119 123 76.0-125 3.31 20 2-Butanone (MEK)25.0 26.4 25.7 106 103 44.0-160 2.69 20 Methylene Chloride 5.00 6.42 6.37 128 127 67.0-120 J4 J4 0.782 20 4-Methyl-2-pentanone (MIBK)25.0 24.9 23.8 99.6 95.2 68.0-142 4.52 20 Methyl tert-butyl ether 5.00 5.73 5.71 115 114 68.0-125 0.350 20 n-Propylbenzene 5.00 6.30 6.28 126 126 77.0-124 J4 J4 0.318 20 Styrene 5.00 5.52 5.38 110 108 73.0-130 2.57 20 1,1,1,2-Tetrachloroethane 5.00 5.31 5.32 106 106 75.0-125 0.188 20 1,1,2,2-Tetrachloroethane 5.00 4.72 4.84 94.4 96.8 65.0-130 2.51 20 Tetrachloroethene 5.00 7.02 6.91 140 138 72.0-132 J4 J4 1.58 20 Toluene 5.00 6.12 6.01 122 120 79.0-120 J4 1.81 20 1,2,4-Trichlorobenzene 5.00 4.71 5.16 94.2 103 57.0-137 9.12 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 38 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 38 of 44 QUALITY CONTROL SUMMARYWG1903831 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-01,02,03,04,05,06,07,08,09,10,11,12 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3821687-1 08/01/22 12:54 • (LCSD) R3821687-2 08/01/22 13:16 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% 1,1,1-Trichloroethane 5.00 5.57 5.87 111 117 73.0-124 5.24 20 1,1,2-Trichloroethane 5.00 5.53 5.49 111 110 80.0-120 0.726 20 Trichloroethene 5.00 6.69 7.15 134 143 78.0-124 J4 J4 6.65 20 Trichlorofluoromethane 5.00 5.53 5.78 111 116 59.0-147 4.42 20 1,2,3-Trichloropropane 5.00 5.15 5.10 103 102 73.0-130 0.976 20 1,2,4-Trimethylbenzene 5.00 5.45 5.51 109 110 76.0-121 1.09 20 1,3,5-Trimethylbenzene 5.00 5.75 5.75 115 115 76.0-122 0.000 20 Vinyl chloride 5.00 5.62 5.65 112 113 67.0-131 0.532 20 o-Xylene 5.00 5.70 5.74 114 115 80.0-122 0.699 20 m&p-Xylenes 10.0 12.0 12.1 120 121 80.0-122 0.830 20 (S) Toluene-d8 105 101 80.0-120 (S) 4-Bromofluorobenzene 106 105 77.0-126 (S) 1,2-Dichloroethane-d4 87.1 85.4 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 39 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 39 of 44 QUALITY CONTROL SUMMARYWG1904352 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1517676-09 Method Blank (MB) (MB) R3823340-2 08/02/22 11:29 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Bromomethane U 0.605 5.00 Naphthalene U 1.00 5.00 1,2,3-Trichlorobenzene U 0.230 1.00 (S) Toluene-d8 101 80.0-120 (S) 4-Bromofluorobenzene 104 77.0-126 (S) 1,2-Dichloroethane-d4 120 70.0-130 Laboratory Control Sample (LCS) (LCS) R3823340-1 08/02/22 10:51 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Bromomethane 5.00 5.40 108 10.0-160 Naphthalene 5.00 4.76 95.2 54.0-135 1,2,3-Trichlorobenzene 5.00 5.00 100 50.0-138 (S) Toluene-d8 96.2 80.0-120 (S) 4-Bromofluorobenzene 104 77.0-126 (S) 1,2-Dichloroethane-d4 121 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 40 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 40 of 44 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. V The sample concentration is too high to evaluate accurate spike recoveries. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 41 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 41 of 44 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 42 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 42 of 44 Chevron - 205513 DATA REVIEW Volatile organic compounds SDG# L1517676 Analyses Performed By: Pace Analytical National Mount Juliet, TN 37122 Report # 47033R Review Level: Tier II Project: 30064349.08.82 DATA REVIEW REPORT arcadis.com SUMMARY This data quality assessment summarizes the review of Sample Delivery Groups (SDGs) # L1517676 for samples collected in association with the Chevron 205513 Site. The review was conducted as a Tier II evaluation and included review of data package completeness. Only analytical data associated with constituents of concern were reviewed for this validation. Field documentation was not included in this review. Included with this assessment are the validation annotated sample result sheets and chain of custody. Analyses were performed on the following samples: Sample ID Lab ID Matrix Sample Collection Date Parent Sample Analysis VOC MW-1-W-20220718 L1517676-01 Water 07/18/2022 X MW-2-W-20220719 L1517676-02 Water 07/19/2022 X MW-3-W-20220718 L1517676-03 Water 07/18/2022 X MW-4D-W-20220720 L1517676-04 Water 07/20/2022 X MW-5-W-20220719 L1517676-05 Water 07/19/2022 X MW-6-W-20220720 L1517676-06 Water 07/20/2022 X MW-7-W-20220719 L1517676-07 Water 07/19/2022 X MW-8-W-20220720 L1517676-08 Water 07/20/2022 X MW-9-W-20220720 L1517676-09 Water 07/20/2022 X DUP-01-W-20220718 L1517676-10 Water 07/18/2022 MW-1-W-20220718 X FB-W-20220720 L1517676-11 Water 07/20/2022 X TB-01-W-20220718 L1517676-12 Water 07/18/2022 X Notes: VOC = volatile organic compounds. DATA REVIEW REPORT arcadis.com ANALYTICAL DATA PACKAGE DOCUMENTATION The table below is the evaluation of the data package completeness. Items Reviewed Reported Performance Acceptable Not Required No Yes No Yes 1. Sample receipt condition X X 2. Requested analyses and sample results X X 3. Master tracking list X X 4. Methods of analysis X X 5. Reporting limits X X 6. Sample collection date X X 7. Laboratory sample received date X X 8. Sample preservation verification (as applicable) X X 9. Sample preparation/extraction/analysis dates X X 10. Fully executed Chain-of-Custody (COC) form X X 11. Narrative summary of QA or sample problems provided X X 12. Data Package Completeness and Compliance X X Note: QA - Quality Assurance DATA REVIEW REPORT arcadis.com ORGANIC ANALYSIS INTRODUCTION Analyses were performed according to United States Environmental Protection Agency (USEPA) SW-846 Methods 6200B. Data were reviewed in accordance with the method specified criteria, USEPA National Functional Guidelines NFG for Organic Superfund Methods Data Review, EPA-540-R-20-005 (November 2020), with reference to the historical (USEPA Contract Laboratory Program National Functional Guidelines for Organic Data Review, OSWER 9240.1-05A-P, October 1999, as appropriate). The data review process is an evaluation of data on a technical basis rather than a determination of contract compliance. As such, the standards against which the data are being weighed may differ from those specified in the analytical method. It is assumed that the data package represents the best efforts of the laboratory and had already been subjected to adequate and sufficient quality review prior to submission. During the review process, laboratory qualified and unqualified data are verified against the supporting documentation. Based on this evaluation, qualifier codes may be added, deleted, or modified by the data reviewer. Results are qualified with the following codes in accordance with USEPA National Functional Guidelines: • Concentration (C) Qualifiers U The compound was analyzed for but not detected. The associated value is the compound quantitation limit. B The compound has been found in the sample as well as its associated blank, its presence in the sample may be suspect. • Quantitation (Q) Qualifiers E The compound was quantitated above the calibration range. D Concentration is based on a diluted sample analysis. • Validation Qualifiers J The compound was positively identified; however, the associated numerical value is an estimated concentration only. UJ The compound was not detected above the reported sample quantitation limit. However, the reported limit is approximate and may or may not represent the actual limit of quantitation. JN The analysis indicates the presence of a compound for which there is presumptive evidence to make a tentative identification. The associated numerical value is an estimated concentration only. UB Compound considered non-detect at the listed value due to associated blank contamination. N The analysis indicates the presence of a compound for which there is presumptive evidence to make a tentative identification. R The sample results are rejected. Two facts should be noted by all data users. First, the "R" flag means that the associated value is unusable. In other words, due to significant quality control (QC) problems, the analysis is invalid and provides no information as to whether the compound is present or not. "R" values should not appear on data tables because they cannot be relied upon, even as a last resort. The second fact to keep in mind is DATA REVIEW REPORT arcadis.com that no compound concentration, even if it has passed all QC tests, is guaranteed to be accurate. Strict QC serves to increase confidence in data but any value potentially contains error. DATA REVIEW REPORT arcadis.com VOLATILE ORGANIC COMPOUND (VOC) ANALYSES 1. Holding Times The specified holding times for the following methods are presented in the following table. Method Matrix Holding Time Preservation SW-846 6200B Water 14 days from collection to analysis Cool to <6 °C; preserved to a pH of less than 2 s.u. Note: s.u. Standard units All samples were analyzed within the specified holding time criteria. 2. Blank Contamination Quality assurance (QA) blanks (i.e., method and rinse blanks) are prepared to identify any contamination which may have been introduced into the samples during sample preparation or field activity. Method blanks measure laboratory contamination. Rinse blanks measure contamination of samples during field operations. A blank action level (BAL) of five times the concentration of a detected compound in an associated blank (common laboratory contaminant compounds are calculated at ten times) is calculated for QA blanks containing concentrations greater than the sample detection limit (SDL). The BAL is compared to the associated sample results to determine the appropriate qualification of the sample results, if needed. Compounds were not detected above the SDL in the associated blanks; therefore, detected sample results were not associated with blank contamination. 3. Surrogates/System Monitoring Compounds All samples to be analyzed for organic compounds are spiked with surrogate compounds prior to sample preparation to evaluate overall laboratory performance and efficiency of the analytical technique. VOC analysis requires that all surrogates associated with the analysis exhibit recoveries within the laboratory- established acceptance limits. All surrogate recoveries were within the control limits. 4. Matrix Spike/Matrix Spike Duplicate (MS/MSD) Analyses MS/MSD data are used to assess the precision and accuracy of the analytical method. The compounds used to perform the MS/MSD analysis must exhibit a percent recovery within the laboratory-established acceptance limits. The relative percent difference (RPD) between the MS/MSD recoveries must exhibit an RPD within the laboratory-established acceptance limits. Note: The MS/MSD recovery control limits do not apply for MS/MSD performed on sample locations where the compound concentration detected in the parent sample exceeds the MS/MSD concentration by a factor of four or greater. MS/MSD analysis was performed on sample ID MW-2-W-20220719. Sample locations associated with the MS/MSD exhibiting recoveries outside of the control limits are presented in the following table. DATA REVIEW REPORT arcadis.com Sample Locations Compound MS Recovery MSD Recovery MW-2-W-20220719 Acetone >UL AC 2,2-Dichloropropane AC >UL Note: AC Acceptable The criteria used to evaluate the MS/MSD recoveries are presented in the following table. In the case of an MS/MSD deviation, the sample results are qualified as documented in the table below. Control Limit Sample Result Qualification > the upper control limit (UL) Non-detect No Action Detect J < the lower control limit (LL) but > 10% Non-detect UJ Detect J < 10% Non-detect R Detect J Parent sample concentration > four times the MS/MSD spiking solution concentration. Detect No Action Non-detect Sample locations associated with MS/MSD recoveries exhibiting an RPD greater than the control limit are presented in the following table. Sample Locations Compound MW-2-W-20220719 Trichlorofluoromethane The criteria used to evaluate the RPD between the MS/MSD recoveries are presented in the following table. In the case of an RPD deviation, the sample results are qualified as documented in the table below. Control Limit Sample Result Qualification > UL Non-detect UJ Detect J 5. Laboratory Control Sample/Laboratory Control Sample Duplicate (LCS/LCSD) Analysis The LCS/LCSD analysis is used to assess the precision and accuracy of the analytical method independent of matrix interferences. The compounds associated with the LCS/LCSD analysis must exhibit a percent recovery within the laboratory-established acceptance limits. Sample locations associated with LCS/LCSD analysis exhibiting recoveries outside of the control limits presented in the following table. DATA REVIEW REPORT arcadis.com Sample Locations Compound LCS Recovery LCSD Recovery MW-1-W-20220718 MW-2-W-20220719 MW-3-W-20220718 MW-4D-W-20220720 MW-5-W-20220719 MW-6-W-20220720 MW-7-W-20220719 MW-8-W-20220720 MW-9-W-20220720 DUP-01-W-20220718 FB-W-20220720 TB-01-W-20220718 Acetone >UL NA Chloroform >UL NA 2,2-Dichloropropane >UL NA Methyl tert-butyl ether >UL NA 1,1,1-Trichloroethane >UL NA 1,1-Dichloroethene >UL >UL cis-1,2-Dichloroethene >UL >UL trans-1,2-Dichloroethene >UL >UL 1,1-Dichloropropene >UL >UL Methylene Chloride >UL >UL n-Propylbenzene >UL >UL Tetrachloroethene >UL >UL Toluene >UL AC Trichloroethene >UL >UL The criteria used to evaluate the LCS/LCSD recoveries are presented in the following table. In the case of an LCS/LCSD deviation, the sample results are qualified as documented in the table below. Control Limit Sample Result Qualification > the upper control limit (UL) Non-detect No Action Detect J < the lower control limit (LL) but > 10% Non-detect UJ Detect J < 10% Non-detect R Detect J 6. Field Duplicate Analysis Field duplicate analysis is used to assess the overall precision of the field sampling procedures and analytical method. A control limit of 30% for water matrices is applied to the RPD between the parent sample and the field duplicate. In the instance when the parent and/or duplicate sample concentrations are less than or equal to 5 times the RL, a control limit of two times the RL is applied for water matrices. Results for duplicate samples are summarized in the following table. DATA REVIEW REPORT arcadis.com Sample ID/Duplicate ID Compound Sample Result Duplicate Result RPD MW-1-W-20220718 / DUP-01-W- 20220718 Di-isopropyl ether 0.105 1 U AC 2-Butanone (MEK) 1.51 1.62 AC Methyl tert-butyl ether 0.904 0.875 AC Notes: AC Acceptable The calculated RPDs between the parent sample and field duplicate were acceptable. 7. System Performance and Overall Assessment Overall system performance was acceptable. Other than for those deviations specifically mentioned in this review, the overall data quality is within the guidelines specified in the method. DATA REVIEW REPORT arcadis.com DATA VALIDATION CHECKLIST FOR VOCs VOCs: SW-846 6200B Reported Performance Acceptable Not Required No Yes No Yes GAS CHROMATOGRAPHY/MASS SPECTROMETRY (GC/MS) Tier II Validation Holding times X X Reporting limits (units) X X Blanks A. Method blanks X X B. Equipment blanks X X C. Trip blanks X X Laboratory Control Sample (LCS) X X Laboratory Control Sample Duplicate(LCSD) X X LCS/LCSD Precision (RPD) X X Matrix Spike (MS) X X Matrix Spike Duplicate (MSD) X X MS/MSD Precision (RPD) X X Field/Lab Duplicate (RPD) X X Surrogate Spike Recoveries X X Dilution Factor X X Notes: %R Percent recovery RPD Relative percent difference DATA REVIEW REPORT arcadis.com VALIDATION PERFORMED BY: Bhagyashree Fulzele SIGNATURE: DATE: September 30, 2022 PEER REVIEW: Dennis Capria DATE: September 30, 2022 CHAIN OF CUSTODY CORRECTED SAMPLE ANALYSIS DATA SHEETS SAMPLE RESULTS - 01 L1517676 MW-1-W-20220718 Collected date/time: 07/18/22 15:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 13:33 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 17:59 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 13:33 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 13:33 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 13:33 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 13:33 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 13:33 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 13:33 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 13:33 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 13:33 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 13:33 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 13:33 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 13:33 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 13:33 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 13:33 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 13:33 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 13:33 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 13:33 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 13:33 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 13:33 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 13:33 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 13:33 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 13:33 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 13:33 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 13:33 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 13:33 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 13:33 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 13:33 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 13:33 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 13:33 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 13:33 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 13:33 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 13:33 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 13:33 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 13:33 WG1900326 Di-isopropyl ether 0.105 J 0.105 1.00 1 07/25/2022 13:33 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 13:33 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 13:33 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 13:33 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 13:33 WG1900326 2-Butanone (MEK)1.51 J 1.19 10.0 1 07/25/2022 13:33 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 13:33 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 13:33 WG1900326 Methyl tert-butyl ether 0.904 J 0.101 1.00 1 08/01/2022 17:59 WG1903831 Naphthalene U 1.00 5.00 1 07/25/2022 13:33 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 13:33 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 13:33 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 13:33 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 13:33 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 13:33 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 13:33 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 13:33 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 13:33 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 13:33 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 13:33 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 13:33 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 6 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 6 of 44 SAMPLE RESULTS - 01 L1517676 MW-1-W-20220718 Collected date/time: 07/18/22 15:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 13:33 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 13:33 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 13:33 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 13:33 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 13:33 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 13:33 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 13:33 WG1900326 (S) Toluene-d8 101 80.0-120 07/25/2022 13:33 WG1900326 (S) Toluene-d8 104 80.0-120 08/01/2022 17:59 WG1903831 (S) 4-Bromofluorobenzene 101 77.0-126 07/25/2022 13:33 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 17:59 WG1903831 (S) 1,2-Dichloroethane-d4 128 70.0-130 07/25/2022 13:33 WG1900326 (S) 1,2-Dichloroethane-d4 87.4 70.0-130 08/01/2022 17:59 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 7 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 7 of 44 SAMPLE RESULTS - 02 L1517676 MW-2-W-20220719 Collected date/time: 07/19/22 19:35 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 J5 2260 10000 200 07/25/2022 12:16 WG1900326 Acrolein U 508 10000 200 08/01/2022 20:32 WG1903831 Acrylonitrile U 134 2000 200 07/25/2022 12:16 WG1900326 Benzene 9280 V 18.8 200 200 07/25/2022 12:16 WG1900326 Bromobenzene U 23.6 200 200 07/25/2022 12:16 WG1900326 Bromodichloromethane U 27.2 200 200 07/25/2022 12:16 WG1900326 Bromoform U 25.8 200 200 07/25/2022 12:16 WG1900326 Bromomethane U 121 1000 200 07/25/2022 12:16 WG1900326 n-Butylbenzene U 31.4 200 200 07/25/2022 12:16 WG1900326 sec-Butylbenzene U 25.0 200 200 07/25/2022 12:16 WG1900326 tert-Butylbenzene U 25.4 200 200 07/25/2022 12:16 WG1900326 Carbon tetrachloride U 25.6 200 200 07/25/2022 12:16 WG1900326 Chlorobenzene U 23.2 200 200 07/25/2022 12:16 WG1900326 Chlorodibromomethane U 28.0 200 200 07/25/2022 12:16 WG1900326 Chloroethane U 38.4 1000 200 07/25/2022 12:16 WG1900326 Chloroform U J4 22.2 1000 200 07/25/2022 12:16 WG1900326 Chloromethane U 192 500 200 07/25/2022 12:16 WG1900326 2-Chlorotoluene U 21.2 200 200 07/25/2022 12:16 WG1900326 4-Chlorotoluene U 22.8 200 200 07/25/2022 12:16 WG1900326 1,2-Dibromo-3-Chloropropane U 55.2 1000 200 07/25/2022 12:16 WG1900326 1,2-Dibromoethane U 25.2 200 200 07/25/2022 12:16 WG1900326 Dibromomethane U 24.4 200 200 07/25/2022 12:16 WG1900326 1,2-Dichlorobenzene U 21.4 200 200 07/25/2022 12:16 WG1900326 1,3-Dichlorobenzene U 22.0 200 200 07/25/2022 12:16 WG1900326 1,4-Dichlorobenzene U 24.0 200 200 07/25/2022 12:16 WG1900326 Dichlorodifluoromethane U 74.8 1000 200 07/25/2022 12:16 WG1900326 1,1-Dichloroethane U 20.0 200 200 07/25/2022 12:16 WG1900326 1,2-Dichloroethane 147 J 16.4 200 200 07/25/2022 12:16 WG1900326 1,1-Dichloroethene U 37.6 200 200 07/25/2022 12:16 WG1900326 cis-1,2-Dichloroethene U 25.2 200 200 07/25/2022 12:16 WG1900326 trans-1,2-Dichloroethene U 29.8 200 200 07/25/2022 12:16 WG1900326 1,2-Dichloropropane U 29.8 200 200 07/25/2022 12:16 WG1900326 1,1-Dichloropropene U 28.4 200 200 07/25/2022 12:16 WG1900326 1,3-Dichloropropane U 22.0 200 200 07/25/2022 12:16 WG1900326 2,2-Dichloropropane U J4 J5 32.2 200 200 07/25/2022 12:16 WG1900326 Di-isopropyl ether 38.5 J 21.0 200 200 07/25/2022 12:16 WG1900326 Ethylbenzene 1560 27.4 200 200 07/25/2022 12:16 WG1900326 Hexachloro-1,3-butadiene U 67.4 200 200 07/25/2022 12:16 WG1900326 Isopropylbenzene 50.6 J 21.0 200 200 07/25/2022 12:16 WG1900326 p-Isopropyltoluene U 24.0 200 200 07/25/2022 12:16 WG1900326 2-Butanone (MEK)U 238 2000 200 07/25/2022 12:16 WG1900326 Methylene Chloride U 86.0 1000 200 07/25/2022 12:16 WG1900326 4-Methyl-2-pentanone (MIBK)U 95.6 2000 200 07/25/2022 12:16 WG1900326 Methyl tert-butyl ether 6510 20.2 200 200 08/01/2022 20:32 WG1903831 Naphthalene 313 J 200 1000 200 07/25/2022 12:16 WG1900326 n-Propylbenzene 149 J 19.9 200 200 07/25/2022 12:16 WG1900326 Styrene 37.7 J 23.6 200 200 07/25/2022 12:16 WG1900326 1,1,1,2-Tetrachloroethane U 29.4 200 200 07/25/2022 12:16 WG1900326 1,1,2,2-Tetrachloroethane U 26.6 200 200 07/25/2022 12:16 WG1900326 Tetrachloroethene U 60.0 200 200 07/25/2022 12:16 WG1900326 Toluene 204 55.6 200 200 07/25/2022 12:16 WG1900326 1,2,3-Trichlorobenzene U 46.0 200 200 07/25/2022 12:16 WG1900326 1,2,4-Trichlorobenzene U 96.2 200 200 07/25/2022 12:16 WG1900326 1,1,1-Trichloroethane U J4 29.8 200 200 07/25/2022 12:16 WG1900326 1,1,2-Trichloroethane U 31.6 200 200 07/25/2022 12:16 WG1900326 Trichloroethene U 38.0 200 200 07/25/2022 12:16 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 8 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 8 of 44 SAMPLE RESULTS - 02 L1517676 MW-2-W-20220719 Collected date/time: 07/19/22 19:35 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U J3 32.0 1000 200 07/25/2022 12:16 WG1900326 1,2,3-Trichloropropane U 47.4 500 200 07/25/2022 12:16 WG1900326 1,2,4-Trimethylbenzene 735 64.4 200 200 07/25/2022 12:16 WG1900326 1,3,5-Trimethylbenzene 186 J 20.8 200 200 07/25/2022 12:16 WG1900326 Vinyl chloride U 46.8 200 200 07/25/2022 12:16 WG1900326 o-Xylene 157 J 34.8 200 200 07/25/2022 12:16 WG1900326 m&p-Xylenes 1060 86.0 400 200 07/25/2022 12:16 WG1900326 (S) Toluene-d8 101 80.0-120 07/25/2022 12:16 WG1900326 (S) Toluene-d8 105 80.0-120 08/01/2022 20:32 WG1903831 (S) 4-Bromofluorobenzene 99.6 77.0-126 07/25/2022 12:16 WG1900326 (S) 4-Bromofluorobenzene 107 77.0-126 08/01/2022 20:32 WG1903831 (S) 1,2-Dichloroethane-d4 123 70.0-130 07/25/2022 12:16 WG1900326 (S) 1,2-Dichloroethane-d4 87.4 70.0-130 08/01/2022 20:32 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 9 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 9 of 44 SAMPLE RESULTS - 03 L1517676 MW-3-W-20220718 Collected date/time: 07/18/22 18:10 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 13:52 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 18:21 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 13:52 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 13:52 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 13:52 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 13:52 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 13:52 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 13:52 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 13:52 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 13:52 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 13:52 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 13:52 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 13:52 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 13:52 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 13:52 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 13:52 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 13:52 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 13:52 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 13:52 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 13:52 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 13:52 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 13:52 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 13:52 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 13:52 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 13:52 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 13:52 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 13:52 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 13:52 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 13:52 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 13:52 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 13:52 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 13:52 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 13:52 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 13:52 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 13:52 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 13:52 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 13:52 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 13:52 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 13:52 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 13:52 WG1900326 2-Butanone (MEK)4.25 J 1.19 10.0 1 07/25/2022 13:52 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 13:52 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 13:52 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 13:52 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 13:52 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 13:52 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 13:52 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 13:52 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 13:52 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 13:52 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 13:52 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 13:52 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 13:52 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 13:52 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 13:52 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 13:52 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 10 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 10 of 44 SAMPLE RESULTS - 03 L1517676 MW-3-W-20220718 Collected date/time: 07/18/22 18:10 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 13:52 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 13:52 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 13:52 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 13:52 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 13:52 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 13:52 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 13:52 WG1900326 (S) Toluene-d8 101 80.0-120 07/25/2022 13:52 WG1900326 (S) Toluene-d8 105 80.0-120 08/01/2022 18:21 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 13:52 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 18:21 WG1903831 (S) 1,2-Dichloroethane-d4 127 70.0-130 07/25/2022 13:52 WG1900326 (S) 1,2-Dichloroethane-d4 87.2 70.0-130 08/01/2022 18:21 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 11 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 11 of 44 SAMPLE RESULTS - 04 L1517676 MW-4D-W-20220720 Collected date/time: 07/20/22 10:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 14:11 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 18:42 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 14:11 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 14:11 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 14:11 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 14:11 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 14:11 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 14:11 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 14:11 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 14:11 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 14:11 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 14:11 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 14:11 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 14:11 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 14:11 WG1900326 Chloroform 0.116 J 0.111 5.00 1 08/01/2022 18:42 WG1903831 Chloromethane U 0.960 2.50 1 07/25/2022 14:11 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 14:11 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 14:11 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 14:11 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 14:11 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 14:11 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 14:11 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 14:11 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 14:11 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 14:11 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 14:11 WG1900326 1,2-Dichloroethane 1.19 0.0819 1.00 1 07/25/2022 14:11 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 14:11 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 14:11 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 14:11 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 14:11 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 14:11 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 14:11 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 14:11 WG1900326 Di-isopropyl ether 1.64 0.105 1.00 1 07/25/2022 14:11 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 14:11 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 14:11 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 14:11 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 14:11 WG1900326 2-Butanone (MEK)3.43 J 1.19 10.0 1 07/25/2022 14:11 WG1900326 Methylene Chloride 0.589 J 0.430 5.00 1 07/25/2022 14:11 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 14:11 WG1900326 Methyl tert-butyl ether 12.6 0.101 1.00 1 08/01/2022 18:42 WG1903831 Naphthalene U 1.00 5.00 1 07/25/2022 14:11 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 14:11 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 14:11 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 14:11 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 14:11 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 14:11 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 14:11 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 14:11 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 14:11 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 14:11 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 14:11 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 14:11 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 12 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 12 of 44 SAMPLE RESULTS - 04 L1517676 MW-4D-W-20220720 Collected date/time: 07/20/22 10:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 14:11 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 14:11 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 14:11 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 14:11 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 14:11 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 14:11 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 14:11 WG1900326 (S) Toluene-d8 103 80.0-120 07/25/2022 14:11 WG1900326 (S) Toluene-d8 105 80.0-120 08/01/2022 18:42 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 14:11 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 18:42 WG1903831 (S) 1,2-Dichloroethane-d4 127 70.0-130 07/25/2022 14:11 WG1900326 (S) 1,2-Dichloroethane-d4 85.7 70.0-130 08/01/2022 18:42 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 13 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 13 of 44 SAMPLE RESULTS - 05 L1517676 MW-5-W-20220719 Collected date/time: 07/19/22 10:20 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 14:30 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 19:04 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 14:30 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 14:30 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 14:30 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 14:30 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 14:30 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 14:30 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 14:30 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 14:30 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 14:30 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 14:30 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 14:30 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 14:30 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 14:30 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 14:30 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 14:30 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 14:30 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 14:30 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 14:30 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 14:30 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 14:30 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 14:30 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 14:30 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 14:30 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 14:30 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 14:30 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 14:30 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 14:30 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 14:30 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 14:30 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 14:30 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 14:30 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 14:30 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 14:30 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 14:30 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 14:30 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 14:30 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 14:30 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 14:30 WG1900326 2-Butanone (MEK)5.30 J 1.19 10.0 1 07/25/2022 14:30 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 14:30 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 14:30 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 14:30 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 14:30 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 14:30 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 14:30 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 14:30 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 14:30 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 14:30 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 14:30 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 14:30 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 14:30 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 14:30 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 14:30 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 14:30 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 14 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 14 of 44 SAMPLE RESULTS - 05 L1517676 MW-5-W-20220719 Collected date/time: 07/19/22 10:20 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 14:30 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 14:30 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 14:30 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 14:30 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 14:30 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 14:30 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 14:30 WG1900326 (S) Toluene-d8 102 80.0-120 07/25/2022 14:30 WG1900326 (S) Toluene-d8 103 80.0-120 08/01/2022 19:04 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 14:30 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 19:04 WG1903831 (S) 1,2-Dichloroethane-d4 126 70.0-130 07/25/2022 14:30 WG1900326 (S) 1,2-Dichloroethane-d4 87.1 70.0-130 08/01/2022 19:04 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 15 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 15 of 44 SAMPLE RESULTS - 06 L1517676 MW-6-W-20220720 Collected date/time: 07/20/22 08:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 14:49 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 19:26 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 14:49 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 14:49 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 14:49 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 14:49 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 14:49 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 14:49 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 14:49 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 14:49 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 14:49 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 14:49 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 14:49 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 14:49 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 14:49 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 14:49 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 14:49 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 14:49 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 14:49 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 14:49 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 14:49 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 14:49 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 14:49 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 14:49 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 14:49 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 14:49 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 14:49 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 14:49 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 14:49 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 14:49 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 14:49 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 14:49 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 14:49 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 14:49 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 14:49 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 14:49 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 14:49 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 14:49 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 14:49 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 14:49 WG1900326 2-Butanone (MEK)1.93 J 1.19 10.0 1 07/25/2022 14:49 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 14:49 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 14:49 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 14:49 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 14:49 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 14:49 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 14:49 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 14:49 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 14:49 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 14:49 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 14:49 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 14:49 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 14:49 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 14:49 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 14:49 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 14:49 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 16 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 16 of 44 SAMPLE RESULTS - 06 L1517676 MW-6-W-20220720 Collected date/time: 07/20/22 08:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 14:49 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 14:49 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 14:49 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 14:49 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 14:49 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 14:49 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 14:49 WG1900326 (S) Toluene-d8 100 80.0-120 07/25/2022 14:49 WG1900326 (S) Toluene-d8 99.9 80.0-120 08/01/2022 19:26 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 14:49 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 19:26 WG1903831 (S) 1,2-Dichloroethane-d4 128 70.0-130 07/25/2022 14:49 WG1900326 (S) 1,2-Dichloroethane-d4 87.2 70.0-130 08/01/2022 19:26 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 17 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 17 of 44 SAMPLE RESULTS - 07 L1517676 MW-7-W-20220719 Collected date/time: 07/19/22 13:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 565 2500 50 07/25/2022 16:44 WG1900326 Acrolein U 127 2500 50 08/01/2022 20:54 WG1903831 Acrylonitrile U 33.6 500 50 07/25/2022 16:44 WG1900326 Benzene 5930 4.71 50.0 50 07/25/2022 16:44 WG1900326 Bromobenzene U 5.90 50.0 50 07/25/2022 16:44 WG1900326 Bromodichloromethane U 6.80 50.0 50 07/25/2022 16:44 WG1900326 Bromoform U 6.45 50.0 50 07/25/2022 16:44 WG1900326 Bromomethane U 30.3 250 50 07/25/2022 16:44 WG1900326 n-Butylbenzene 8.52 J 7.85 50.0 50 07/25/2022 16:44 WG1900326 sec-Butylbenzene 8.12 J 6.25 50.0 50 07/25/2022 16:44 WG1900326 tert-Butylbenzene U 6.35 50.0 50 07/25/2022 16:44 WG1900326 Carbon tetrachloride U 6.40 50.0 50 07/25/2022 16:44 WG1900326 Chlorobenzene U 5.80 50.0 50 07/25/2022 16:44 WG1900326 Chlorodibromomethane U 7.00 50.0 50 07/25/2022 16:44 WG1900326 Chloroethane U 9.60 250 50 07/25/2022 16:44 WG1900326 Chloroform U J4 5.55 250 50 07/25/2022 16:44 WG1900326 Chloromethane U 48.0 125 50 07/25/2022 16:44 WG1900326 2-Chlorotoluene U 5.30 50.0 50 07/25/2022 16:44 WG1900326 4-Chlorotoluene U 5.70 50.0 50 07/25/2022 16:44 WG1900326 1,2-Dibromo-3-Chloropropane U 13.8 250 50 07/25/2022 16:44 WG1900326 1,2-Dibromoethane U 6.30 50.0 50 07/25/2022 16:44 WG1900326 Dibromomethane U 6.10 50.0 50 07/25/2022 16:44 WG1900326 1,2-Dichlorobenzene U 5.35 50.0 50 07/25/2022 16:44 WG1900326 1,3-Dichlorobenzene U 5.50 50.0 50 07/25/2022 16:44 WG1900326 1,4-Dichlorobenzene U 6.00 50.0 50 07/25/2022 16:44 WG1900326 Dichlorodifluoromethane U 18.7 250 50 07/25/2022 16:44 WG1900326 1,1-Dichloroethane U 5.00 50.0 50 07/25/2022 16:44 WG1900326 1,2-Dichloroethane 120 4.09 50.0 50 07/25/2022 16:44 WG1900326 1,1-Dichloroethene U 9.40 50.0 50 07/25/2022 16:44 WG1900326 cis-1,2-Dichloroethene U 6.30 50.0 50 07/25/2022 16:44 WG1900326 trans-1,2-Dichloroethene U 7.45 50.0 50 07/25/2022 16:44 WG1900326 1,2-Dichloropropane U 7.45 50.0 50 07/25/2022 16:44 WG1900326 1,1-Dichloropropene U 7.10 50.0 50 07/25/2022 16:44 WG1900326 1,3-Dichloropropane U 5.50 50.0 50 07/25/2022 16:44 WG1900326 2,2-Dichloropropane U J4 8.05 50.0 50 07/25/2022 16:44 WG1900326 Di-isopropyl ether 32.4 J 5.25 50.0 50 07/25/2022 16:44 WG1900326 Ethylbenzene 1300 6.85 50.0 50 07/25/2022 16:44 WG1900326 Hexachloro-1,3-butadiene U 16.9 50.0 50 07/25/2022 16:44 WG1900326 Isopropylbenzene 56.1 5.25 50.0 50 07/25/2022 16:44 WG1900326 p-Isopropyltoluene U 6.00 50.0 50 07/25/2022 16:44 WG1900326 2-Butanone (MEK)U 59.5 500 50 07/25/2022 16:44 WG1900326 Methylene Chloride U 21.5 250 50 07/25/2022 16:44 WG1900326 4-Methyl-2-pentanone (MIBK)U 23.9 500 50 07/25/2022 16:44 WG1900326 Methyl tert-butyl ether 3310 5.05 50.0 50 08/01/2022 20:54 WG1903831 Naphthalene 302 50.0 250 50 07/25/2022 16:44 WG1900326 n-Propylbenzene 130 4.97 50.0 50 07/25/2022 16:44 WG1900326 Styrene U 5.90 50.0 50 07/25/2022 16:44 WG1900326 1,1,1,2-Tetrachloroethane U 7.35 50.0 50 07/25/2022 16:44 WG1900326 1,1,2,2-Tetrachloroethane U 6.65 50.0 50 07/25/2022 16:44 WG1900326 Tetrachloroethene U 15.0 50.0 50 07/25/2022 16:44 WG1900326 Toluene 53.8 13.9 50.0 50 07/25/2022 16:44 WG1900326 1,2,3-Trichlorobenzene U 11.5 50.0 50 07/25/2022 16:44 WG1900326 1,2,4-Trichlorobenzene U 24.1 50.0 50 07/25/2022 16:44 WG1900326 1,1,1-Trichloroethane U J4 7.45 50.0 50 07/25/2022 16:44 WG1900326 1,1,2-Trichloroethane U 7.90 50.0 50 07/25/2022 16:44 WG1900326 Trichloroethene U 9.50 50.0 50 07/25/2022 16:44 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 18 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 18 of 44 SAMPLE RESULTS - 07 L1517676 MW-7-W-20220719 Collected date/time: 07/19/22 13:50 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 8.00 250 50 07/25/2022 16:44 WG1900326 1,2,3-Trichloropropane U 11.9 125 50 07/25/2022 16:44 WG1900326 1,2,4-Trimethylbenzene 427 16.1 50.0 50 07/25/2022 16:44 WG1900326 1,3,5-Trimethylbenzene 161 5.20 50.0 50 07/25/2022 16:44 WG1900326 Vinyl chloride U 11.7 50.0 50 07/25/2022 16:44 WG1900326 o-Xylene 197 8.70 50.0 50 07/25/2022 16:44 WG1900326 m&p-Xylenes 626 21.5 100 50 07/25/2022 16:44 WG1900326 (S) Toluene-d8 100 80.0-120 07/25/2022 16:44 WG1900326 (S) Toluene-d8 102 80.0-120 08/01/2022 20:54 WG1903831 (S) 4-Bromofluorobenzene 102 77.0-126 07/25/2022 16:44 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 20:54 WG1903831 (S) 1,2-Dichloroethane-d4 127 70.0-130 07/25/2022 16:44 WG1900326 (S) 1,2-Dichloroethane-d4 84.9 70.0-130 08/01/2022 20:54 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 19 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 19 of 44 SAMPLE RESULTS - 08 L1517676 MW-8-W-20220720 Collected date/time: 07/20/22 13:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone 11100 J 2820 12500 250 08/01/2022 21:16 WG1903831 Acrolein U 635 12500 250 08/01/2022 21:16 WG1903831 Acrylonitrile U 16.8 250 25 07/25/2022 17:03 WG1900326 Benzene 23800 23.5 250 250 08/01/2022 21:16 WG1903831 Bromobenzene U 2.95 25.0 25 07/25/2022 17:03 WG1900326 Bromodichloromethane U 3.40 25.0 25 07/25/2022 17:03 WG1900326 Bromoform U 3.22 25.0 25 07/25/2022 17:03 WG1900326 Bromomethane U 15.1 125 25 07/25/2022 17:03 WG1900326 n-Butylbenzene 8.69 J 3.93 25.0 25 07/25/2022 17:03 WG1900326 sec-Butylbenzene 6.50 J 3.13 25.0 25 07/25/2022 17:03 WG1900326 tert-Butylbenzene U 3.18 25.0 25 07/25/2022 17:03 WG1900326 Carbon tetrachloride U 3.20 25.0 25 07/25/2022 17:03 WG1900326 Chlorobenzene U 2.90 25.0 25 07/25/2022 17:03 WG1900326 Chlorodibromomethane U 3.50 25.0 25 07/25/2022 17:03 WG1900326 Chloroethane U 4.80 125 25 07/25/2022 17:03 WG1900326 Chloroform U J4 2.78 125 25 07/25/2022 17:03 WG1900326 Chloromethane U 24.0 62.5 25 07/25/2022 17:03 WG1900326 2-Chlorotoluene U 2.65 25.0 25 07/25/2022 17:03 WG1900326 4-Chlorotoluene U 2.85 25.0 25 07/25/2022 17:03 WG1900326 1,2-Dibromo-3-Chloropropane U 6.90 125 25 07/25/2022 17:03 WG1900326 1,2-Dibromoethane 222 3.15 25.0 25 07/25/2022 17:03 WG1900326 Dibromomethane U 3.05 25.0 25 07/25/2022 17:03 WG1900326 1,2-Dichlorobenzene U 2.68 25.0 25 07/25/2022 17:03 WG1900326 1,3-Dichlorobenzene U 2.75 25.0 25 07/25/2022 17:03 WG1900326 1,4-Dichlorobenzene U 3.00 25.0 25 07/25/2022 17:03 WG1900326 Dichlorodifluoromethane U 9.35 125 25 07/25/2022 17:03 WG1900326 1,1-Dichloroethane U 2.50 25.0 25 07/25/2022 17:03 WG1900326 1,2-Dichloroethane 1240 2.05 25.0 25 07/25/2022 17:03 WG1900326 1,1-Dichloroethene U 4.70 25.0 25 07/25/2022 17:03 WG1900326 cis-1,2-Dichloroethene U 3.15 25.0 25 07/25/2022 17:03 WG1900326 trans-1,2-Dichloroethene U 3.73 25.0 25 07/25/2022 17:03 WG1900326 1,2-Dichloropropane U 3.73 25.0 25 07/25/2022 17:03 WG1900326 1,1-Dichloropropene U 3.55 25.0 25 07/25/2022 17:03 WG1900326 1,3-Dichloropropane U 2.75 25.0 25 07/25/2022 17:03 WG1900326 2,2-Dichloropropane U J4 4.03 25.0 25 07/25/2022 17:03 WG1900326 Di-isopropyl ether 315 2.63 25.0 25 07/25/2022 17:03 WG1900326 Ethylbenzene 1820 3.43 25.0 25 07/25/2022 17:03 WG1900326 Hexachloro-1,3-butadiene U 8.43 25.0 25 07/25/2022 17:03 WG1900326 Isopropylbenzene 71.4 2.63 25.0 25 07/25/2022 17:03 WG1900326 p-Isopropyltoluene U 3.00 25.0 25 07/25/2022 17:03 WG1900326 2-Butanone (MEK)9210 29.8 250 25 07/25/2022 17:03 WG1900326 Methylene Chloride U 10.7 125 25 07/25/2022 17:03 WG1900326 4-Methyl-2-pentanone (MIBK)325 12.0 250 25 07/25/2022 17:03 WG1900326 Methyl tert-butyl ether U J4 2.53 25.0 25 07/25/2022 17:03 WG1900326 Naphthalene 342 25.0 125 25 07/25/2022 17:03 WG1900326 n-Propylbenzene 199 2.48 25.0 25 07/25/2022 17:03 WG1900326 Styrene U 2.95 25.0 25 07/25/2022 17:03 WG1900326 1,1,1,2-Tetrachloroethane U 3.68 25.0 25 07/25/2022 17:03 WG1900326 1,1,2,2-Tetrachloroethane U 3.33 25.0 25 07/25/2022 17:03 WG1900326 Tetrachloroethene U 7.50 25.0 25 07/25/2022 17:03 WG1900326 Toluene 12100 J4 69.5 250 250 08/01/2022 21:16 WG1903831 1,2,3-Trichlorobenzene U 5.75 25.0 25 07/25/2022 17:03 WG1900326 1,2,4-Trichlorobenzene U 12.0 25.0 25 07/25/2022 17:03 WG1900326 1,1,1-Trichloroethane U J4 3.73 25.0 25 07/25/2022 17:03 WG1900326 1,1,2-Trichloroethane U 3.95 25.0 25 07/25/2022 17:03 WG1900326 Trichloroethene U 4.75 25.0 25 07/25/2022 17:03 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 20 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 20 of 44 SAMPLE RESULTS - 08 L1517676 MW-8-W-20220720 Collected date/time: 07/20/22 13:25 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 4.00 125 25 07/25/2022 17:03 WG1900326 1,2,3-Trichloropropane U 5.93 62.5 25 07/25/2022 17:03 WG1900326 1,2,4-Trimethylbenzene 1310 8.05 25.0 25 07/25/2022 17:03 WG1900326 1,3,5-Trimethylbenzene 335 2.60 25.0 25 07/25/2022 17:03 WG1900326 Vinyl chloride U 5.85 25.0 25 07/25/2022 17:03 WG1900326 o-Xylene 3120 4.35 25.0 25 07/25/2022 17:03 WG1900326 m&p-Xylenes 6000 10.7 50.0 25 07/25/2022 17:03 WG1900326 (S) Toluene-d8 99.3 80.0-120 07/25/2022 17:03 WG1900326 (S) Toluene-d8 104 80.0-120 08/01/2022 21:16 WG1903831 (S) 4-Bromofluorobenzene 100 77.0-126 07/25/2022 17:03 WG1900326 (S) 4-Bromofluorobenzene 104 77.0-126 08/01/2022 21:16 WG1903831 (S) 1,2-Dichloroethane-d4 125 70.0-130 07/25/2022 17:03 WG1900326 (S) 1,2-Dichloroethane-d4 86.0 70.0-130 08/01/2022 21:16 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 21 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 21 of 44 SAMPLE RESULTS - 09 L1517676 MW-9-W-20220720 Collected date/time: 07/20/22 12:05 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11300 50000 1000 08/01/2022 21:38 WG1903831 Acrolein U 2540 50000 1000 08/01/2022 21:38 WG1903831 Acrylonitrile U 671 10000 1000 08/01/2022 21:38 WG1903831 Benzene 4250 94.1 1000 1000 08/01/2022 21:38 WG1903831 Bromobenzene U 118 1000 1000 08/01/2022 21:38 WG1903831 Bromodichloromethane U 136 1000 1000 08/01/2022 21:38 WG1903831 Bromoform U 129 1000 1000 08/01/2022 21:38 WG1903831 Bromomethane U 605 5000 1000 08/02/2022 21:47 WG1904352 n-Butylbenzene U 157 1000 1000 08/01/2022 21:38 WG1903831 sec-Butylbenzene U 125 1000 1000 08/01/2022 21:38 WG1903831 tert-Butylbenzene U 127 1000 1000 08/01/2022 21:38 WG1903831 Carbon tetrachloride U 128 1000 1000 08/01/2022 21:38 WG1903831 Chlorobenzene U 116 1000 1000 08/01/2022 21:38 WG1903831 Chlorodibromomethane U 140 1000 1000 08/01/2022 21:38 WG1903831 Chloroethane U 192 5000 1000 08/01/2022 21:38 WG1903831 Chloroform U 111 5000 1000 08/01/2022 21:38 WG1903831 Chloromethane U 960 2500 1000 08/01/2022 21:38 WG1903831 2-Chlorotoluene U 106 1000 1000 08/01/2022 21:38 WG1903831 4-Chlorotoluene U 114 1000 1000 08/01/2022 21:38 WG1903831 1,2-Dibromo-3-Chloropropane U 276 5000 1000 08/01/2022 21:38 WG1903831 1,2-Dibromoethane U 126 1000 1000 08/01/2022 21:38 WG1903831 Dibromomethane U 122 1000 1000 08/01/2022 21:38 WG1903831 1,2-Dichlorobenzene U 107 1000 1000 08/01/2022 21:38 WG1903831 1,3-Dichlorobenzene U 110 1000 1000 08/01/2022 21:38 WG1903831 1,4-Dichlorobenzene U 120 1000 1000 08/01/2022 21:38 WG1903831 Dichlorodifluoromethane U 374 5000 1000 08/01/2022 21:38 WG1903831 1,1-Dichloroethane U 100 1000 1000 08/01/2022 21:38 WG1903831 1,2-Dichloroethane U 81.9 1000 1000 08/01/2022 21:38 WG1903831 1,1-Dichloroethene U J4 188 1000 1000 08/01/2022 21:38 WG1903831 cis-1,2-Dichloroethene U J4 126 1000 1000 08/01/2022 21:38 WG1903831 trans-1,2-Dichloroethene U J4 149 1000 1000 08/01/2022 21:38 WG1903831 1,2-Dichloropropane U 149 1000 1000 08/01/2022 21:38 WG1903831 1,1-Dichloropropene U J4 142 1000 1000 08/01/2022 21:38 WG1903831 1,3-Dichloropropane U 110 1000 1000 08/01/2022 21:38 WG1903831 2,2-Dichloropropane U 161 1000 1000 08/01/2022 21:38 WG1903831 Di-isopropyl ether U 105 1000 1000 08/01/2022 21:38 WG1903831 Ethylbenzene 1000 J 137 1000 1000 08/01/2022 21:38 WG1903831 Hexachloro-1,3-butadiene U 337 1000 1000 08/01/2022 21:38 WG1903831 Isopropylbenzene U 105 1000 1000 08/01/2022 21:38 WG1903831 p-Isopropyltoluene U 120 1000 1000 08/01/2022 21:38 WG1903831 2-Butanone (MEK)U 1190 10000 1000 08/01/2022 21:38 WG1903831 Methylene Chloride U J4 430 5000 1000 08/01/2022 21:38 WG1903831 4-Methyl-2-pentanone (MIBK)U 478 10000 1000 08/01/2022 21:38 WG1903831 Methyl tert-butyl ether 6950 101 1000 1000 08/01/2022 21:38 WG1903831 Naphthalene 1240 J 1000 5000 1000 08/02/2022 21:47 WG1904352 n-Propylbenzene U J4 99.3 1000 1000 08/01/2022 21:38 WG1903831 Styrene U 118 1000 1000 08/01/2022 21:38 WG1903831 1,1,1,2-Tetrachloroethane U 147 1000 1000 08/01/2022 21:38 WG1903831 1,1,2,2-Tetrachloroethane U 133 1000 1000 08/01/2022 21:38 WG1903831 Tetrachloroethene U J4 300 1000 1000 08/01/2022 21:38 WG1903831 Toluene U J4 278 1000 1000 08/01/2022 21:38 WG1903831 1,2,3-Trichlorobenzene U 230 1000 1000 08/02/2022 21:47 WG1904352 1,2,4-Trichlorobenzene U 481 1000 1000 08/01/2022 21:38 WG1903831 1,1,1-Trichloroethane U 149 1000 1000 08/01/2022 21:38 WG1903831 1,1,2-Trichloroethane U 158 1000 1000 08/01/2022 21:38 WG1903831 Trichloroethene U J4 190 1000 1000 08/01/2022 21:38 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 22 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 22 of 44 SAMPLE RESULTS - 09 L1517676 MW-9-W-20220720 Collected date/time: 07/20/22 12:05 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 160 5000 1000 08/01/2022 21:38 WG1903831 1,2,3-Trichloropropane U 237 2500 1000 08/01/2022 21:38 WG1903831 1,2,4-Trimethylbenzene U 322 1000 1000 08/01/2022 21:38 WG1903831 1,3,5-Trimethylbenzene U 104 1000 1000 08/01/2022 21:38 WG1903831 Vinyl chloride U 234 1000 1000 08/01/2022 21:38 WG1903831 o-Xylene U 174 1000 1000 08/01/2022 21:38 WG1903831 m&p-Xylenes U 430 2000 1000 08/01/2022 21:38 WG1903831 (S) Toluene-d8 103 80.0-120 08/01/2022 21:38 WG1903831 (S) Toluene-d8 102 80.0-120 08/02/2022 21:47 WG1904352 (S) 4-Bromofluorobenzene 104 77.0-126 08/01/2022 21:38 WG1903831 (S) 4-Bromofluorobenzene 105 77.0-126 08/02/2022 21:47 WG1904352 (S) 1,2-Dichloroethane-d4 85.9 70.0-130 08/01/2022 21:38 WG1903831 (S) 1,2-Dichloroethane-d4 113 70.0-130 08/02/2022 21:47 WG1904352 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 23 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 23 of 44 SAMPLE RESULTS - 10 L1517676 DUP-01-W-20220718 Collected date/time: 07/18/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 15:08 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 19:48 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 15:08 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 15:08 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 15:08 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 15:08 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 15:08 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 15:08 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 15:08 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 15:08 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 15:08 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 15:08 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 15:08 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 15:08 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 15:08 WG1900326 Chloroform U J4 0.111 5.00 1 07/25/2022 15:08 WG1900326 Chloromethane U 0.960 2.50 1 07/25/2022 15:08 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 15:08 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 15:08 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 15:08 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 15:08 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 15:08 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 15:08 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 15:08 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 15:08 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 15:08 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 15:08 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 15:08 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 15:08 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 15:08 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 15:08 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 15:08 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 15:08 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 15:08 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 15:08 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 15:08 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 15:08 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 15:08 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 15:08 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 15:08 WG1900326 2-Butanone (MEK)1.62 J 1.19 10.0 1 07/25/2022 15:08 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 15:08 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 15:08 WG1900326 Methyl tert-butyl ether 0.875 J 0.101 1.00 1 08/01/2022 19:48 WG1903831 Naphthalene U 1.00 5.00 1 07/25/2022 15:08 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 15:08 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 15:08 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 15:08 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 15:08 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 15:08 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 15:08 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 15:08 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 15:08 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 15:08 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 15:08 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 15:08 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 24 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 24 of 44 SAMPLE RESULTS - 10 L1517676 DUP-01-W-20220718 Collected date/time: 07/18/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 15:08 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 15:08 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 15:08 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 15:08 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 15:08 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 15:08 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 15:08 WG1900326 (S) Toluene-d8 102 80.0-120 07/25/2022 15:08 WG1900326 (S) Toluene-d8 107 80.0-120 08/01/2022 19:48 WG1903831 (S) 4-Bromofluorobenzene 104 77.0-126 07/25/2022 15:08 WG1900326 (S) 4-Bromofluorobenzene 105 77.0-126 08/01/2022 19:48 WG1903831 (S) 1,2-Dichloroethane-d4 126 70.0-130 07/25/2022 15:08 WG1900326 (S) 1,2-Dichloroethane-d4 84.4 70.0-130 08/01/2022 19:48 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 25 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 25 of 44 SAMPLE RESULTS - 11 L1517676 FB-W-20220720 Collected date/time: 07/20/22 12:45 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 11:38 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 20:10 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 11:38 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 11:38 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 11:38 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 11:38 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 11:38 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 11:38 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 11:38 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 11:38 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 11:38 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 11:38 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 11:38 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 11:38 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 11:38 WG1900326 Chloroform U 0.111 5.00 1 08/01/2022 20:10 WG1903831 Chloromethane U 0.960 2.50 1 07/25/2022 11:38 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 11:38 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 11:38 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 11:38 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 11:38 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 11:38 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 11:38 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 11:38 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 11:38 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 11:38 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 11:38 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 11:38 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 11:38 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 11:38 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 11:38 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 11:38 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 11:38 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 11:38 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 11:38 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 11:38 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 11:38 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 11:38 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 11:38 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 11:38 WG1900326 2-Butanone (MEK)U 1.19 10.0 1 07/25/2022 11:38 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 11:38 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 11:38 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 11:38 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 11:38 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 11:38 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 11:38 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 11:38 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 11:38 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 11:38 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 11:38 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 11:38 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 11:38 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 11:38 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 11:38 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 11:38 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 26 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 26 of 44 SAMPLE RESULTS - 11 L1517676 FB-W-20220720 Collected date/time: 07/20/22 12:45 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 11:38 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 11:38 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 11:38 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 11:38 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 11:38 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 11:38 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 11:38 WG1900326 (S) Toluene-d8 103 80.0-120 07/25/2022 11:38 WG1900326 (S) Toluene-d8 101 80.0-120 08/01/2022 20:10 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 11:38 WG1900326 (S) 4-Bromofluorobenzene 101 77.0-126 08/01/2022 20:10 WG1903831 (S) 1,2-Dichloroethane-d4 126 70.0-130 07/25/2022 11:38 WG1900326 (S) 1,2-Dichloroethane-d4 85.4 70.0-130 08/01/2022 20:10 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 27 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 27 of 44 SAMPLE RESULTS - 12 L1517676 TB-01-W-20220718 Collected date/time: 07/18/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U J4 11.3 50.0 1 07/25/2022 11:57 WG1900326 Acrolein U 2.54 50.0 1 08/01/2022 16:31 WG1903831 Acrylonitrile U 0.671 10.0 1 07/25/2022 11:57 WG1900326 Benzene U 0.0941 1.00 1 07/25/2022 11:57 WG1900326 Bromobenzene U 0.118 1.00 1 07/25/2022 11:57 WG1900326 Bromodichloromethane U 0.136 1.00 1 07/25/2022 11:57 WG1900326 Bromoform U 0.129 1.00 1 07/25/2022 11:57 WG1900326 Bromomethane U 0.605 5.00 1 07/25/2022 11:57 WG1900326 n-Butylbenzene U 0.157 1.00 1 07/25/2022 11:57 WG1900326 sec-Butylbenzene U 0.125 1.00 1 07/25/2022 11:57 WG1900326 tert-Butylbenzene U 0.127 1.00 1 07/25/2022 11:57 WG1900326 Carbon tetrachloride U 0.128 1.00 1 07/25/2022 11:57 WG1900326 Chlorobenzene U 0.116 1.00 1 07/25/2022 11:57 WG1900326 Chlorodibromomethane U 0.140 1.00 1 07/25/2022 11:57 WG1900326 Chloroethane U 0.192 5.00 1 07/25/2022 11:57 WG1900326 Chloroform U 0.111 5.00 1 08/01/2022 16:31 WG1903831 Chloromethane U 0.960 2.50 1 07/25/2022 11:57 WG1900326 2-Chlorotoluene U 0.106 1.00 1 07/25/2022 11:57 WG1900326 4-Chlorotoluene U 0.114 1.00 1 07/25/2022 11:57 WG1900326 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 07/25/2022 11:57 WG1900326 1,2-Dibromoethane U 0.126 1.00 1 07/25/2022 11:57 WG1900326 Dibromomethane U 0.122 1.00 1 07/25/2022 11:57 WG1900326 1,2-Dichlorobenzene U 0.107 1.00 1 07/25/2022 11:57 WG1900326 1,3-Dichlorobenzene U 0.110 1.00 1 07/25/2022 11:57 WG1900326 1,4-Dichlorobenzene U 0.120 1.00 1 07/25/2022 11:57 WG1900326 Dichlorodifluoromethane U 0.374 5.00 1 07/25/2022 11:57 WG1900326 1,1-Dichloroethane U 0.100 1.00 1 07/25/2022 11:57 WG1900326 1,2-Dichloroethane U 0.0819 1.00 1 07/25/2022 11:57 WG1900326 1,1-Dichloroethene U 0.188 1.00 1 07/25/2022 11:57 WG1900326 cis-1,2-Dichloroethene U 0.126 1.00 1 07/25/2022 11:57 WG1900326 trans-1,2-Dichloroethene U 0.149 1.00 1 07/25/2022 11:57 WG1900326 1,2-Dichloropropane U 0.149 1.00 1 07/25/2022 11:57 WG1900326 1,1-Dichloropropene U 0.142 1.00 1 07/25/2022 11:57 WG1900326 1,3-Dichloropropane U 0.110 1.00 1 07/25/2022 11:57 WG1900326 2,2-Dichloropropane U J4 0.161 1.00 1 07/25/2022 11:57 WG1900326 Di-isopropyl ether U 0.105 1.00 1 07/25/2022 11:57 WG1900326 Ethylbenzene U 0.137 1.00 1 07/25/2022 11:57 WG1900326 Hexachloro-1,3-butadiene U 0.337 1.00 1 07/25/2022 11:57 WG1900326 Isopropylbenzene U 0.105 1.00 1 07/25/2022 11:57 WG1900326 p-Isopropyltoluene U 0.120 1.00 1 07/25/2022 11:57 WG1900326 2-Butanone (MEK)1.95 J 1.19 10.0 1 07/25/2022 11:57 WG1900326 Methylene Chloride U 0.430 5.00 1 07/25/2022 11:57 WG1900326 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 07/25/2022 11:57 WG1900326 Methyl tert-butyl ether U J4 0.101 1.00 1 07/25/2022 11:57 WG1900326 Naphthalene U 1.00 5.00 1 07/25/2022 11:57 WG1900326 n-Propylbenzene U 0.0993 1.00 1 07/25/2022 11:57 WG1900326 Styrene U 0.118 1.00 1 07/25/2022 11:57 WG1900326 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 07/25/2022 11:57 WG1900326 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 07/25/2022 11:57 WG1900326 Tetrachloroethene U 0.300 1.00 1 07/25/2022 11:57 WG1900326 Toluene U 0.278 1.00 1 07/25/2022 11:57 WG1900326 1,2,3-Trichlorobenzene U 0.230 1.00 1 07/25/2022 11:57 WG1900326 1,2,4-Trichlorobenzene U 0.481 1.00 1 07/25/2022 11:57 WG1900326 1,1,1-Trichloroethane U J4 0.149 1.00 1 07/25/2022 11:57 WG1900326 1,1,2-Trichloroethane U 0.158 1.00 1 07/25/2022 11:57 WG1900326 Trichloroethene U 0.190 1.00 1 07/25/2022 11:57 WG1900326 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 28 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 28 of 44 SAMPLE RESULTS - 12 L1517676 TB-01-W-20220718 Collected date/time: 07/18/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 07/25/2022 11:57 WG1900326 1,2,3-Trichloropropane U 0.237 2.50 1 07/25/2022 11:57 WG1900326 1,2,4-Trimethylbenzene U 0.322 1.00 1 07/25/2022 11:57 WG1900326 1,3,5-Trimethylbenzene U 0.104 1.00 1 07/25/2022 11:57 WG1900326 Vinyl chloride U 0.234 1.00 1 07/25/2022 11:57 WG1900326 o-Xylene U 0.174 1.00 1 07/25/2022 11:57 WG1900326 m&p-Xylenes U 0.430 2.00 1 07/25/2022 11:57 WG1900326 (S) Toluene-d8 105 80.0-120 07/25/2022 11:57 WG1900326 (S) Toluene-d8 99.9 80.0-120 08/01/2022 16:31 WG1903831 (S) 4-Bromofluorobenzene 103 77.0-126 07/25/2022 11:57 WG1900326 (S) 4-Bromofluorobenzene 100 77.0-126 08/01/2022 16:31 WG1903831 (S) 1,2-Dichloroethane-d4 127 70.0-130 07/25/2022 11:57 WG1900326 (S) 1,2-Dichloroethane-d4 84.5 70.0-130 08/01/2022 16:31 WG1903831 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 10:03 29 of 44 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Arcadis - Chevron - NC 30064349 L1517676 08/08/22 18:46 29 of 44 Appendix D Waste Manifest Arcadis. Improving quality of life. Arcadis U.S., Inc. 3540 Toringdon Way, Suite 220 Charlotte North Carolina 28277 Phone: 704 752 4258 www.arcadis.com