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HomeMy WebLinkAboutFA-7726_42007_CA_MRP_20220608June 8, 2022 Mr. James Brown North Carolina Department of Environmental Quality NCDEQ Fayetteville Regional Office Division of Waste Management, UST Section Systel Building 225 Green Street, Suite 714 Fayetteville, North Carolina 28301 Subject:Groundwater Monitoring Report Speedway 8299 291 NC Highway 42 East Clayton, Johnston County, North Carolina Incident No.: 42007 Mid-Atlantic Project No.: 000R2826.15 Dear Mr. Brown: Speedway LLC is pleased to submit the enclosed Groundwater Monitoring Report for the Speedway 8299 facility located at 291 NC Highway 42 East, in Clayton, North Carolina. If you have any questions, please feel free to contact me at (919) 516-8069 or Trey Marchant with Mid-Atlantic Associates, Inc. at (919) 250-9918. Sincerely, SPEEDWAY LLC Charles A. Chiara Manager, Environmental Services Report Date:June 8, 2022 Project No:000R2826.15 GROUNDWATER MONITORING REPORT SPEEDWAY 8299 291 NC Highway 42 East, Clayton, Johnston County, North Carolina ENGINEERING & ENVIRONMENTAL SOLUTIONS PREPARED FOR:PREPARED BY: Speedway, LLC 500 Speedway Drive Enon, Ohio, 45323 Mid Atlantic Associates, Inc. 409 Rogers View Court Raleigh, North Carolina, 27610 GROUNDWATER MONITORING REPORT A. Site Information 1. Site Identification Date of Report:June 8, 2022 Facility ID:0-036192 UST Incident No. (if known):42007 Site Risk:High Site Rank:H-255-D Land Use Classification:Residential Site Name:Speedway 8299 Site Location:291 NC Highway 42 East Nearest City/Town:Clayton County:Johnston Latitude:35.639444° N Longitude:-78.440336° W Description of Geographical Data Point:Approximate UST Area Location Method:Google Earth 2. Information about Contacts Associated with the Leaking UST System UST Owner:Speedway LLC Address:500 Speedway Drive, Enon, Ohio 45323 Phone:(919) 516-8069 UST Operator:Same as UST Owner Address:Phone: Property Owner:Same as UST Owner Address:Phone: Property Occupant:Same as UST Owner Address:Phone: Consultant/Contractor:Mid-Atlantic Associates, Inc. Address:409 Rogers View Ct., Raleigh, NC 27610 Phone:(919) 250-9918 3. Release Information Date Discovered:August 8, 2016 Estimated Quantity of Release:Estimated 600 gallons Cause of Release:A loose valve connection allowed fuel to accumulate in a gasoline STP sump and overflowed to the tank pit. No fuel was released to the land surface. Source of Release (Piping/UST):Gasoline UST System Sizes and contents of UST system(s) from which release occurred:One 6,000-gallon capacity regular-unleaded gasoline UST Criteria Used to Classify Risk:Free product is present on the water table. Two water supply wells are located within 1000 feet of the source area. I, Raymond S. Marchant, III, a Professional Engineer/Licensed Geologist (circle one) for Mid-Atlantic Associates, Inc. (firm or company of employment), do certify that the information contained in this report is correct and accurate to the best of my knowledge. TABLE OF CONTENTS 1.0 INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 2.0 SITE HISTORY AND SOURCE CHARACTERIZATION . . . . . . . . . . . . . . . . . . . . 2 2.1 UST Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.2 UST System Owner/Operator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.3 Information on Source of Release . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.4 Regional Geology and Hydrogeology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2.5 Site Geology and Hydrogeology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 3.0 POTENTIAL RECEPTORS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 4.0 FIELD ACTIVITIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.1 Monitoring Well Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.2 Liquid Level Measurements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.3 Monitoring Well Sample Collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 4.4 Soil Vapor Sample Collection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5.0 DISCUSSION OF SAMPLING RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5.1 Summary of Analytical Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 5.2 Description of Current Plume Size and Location . . . . . . . . . . . . . . . . . . . . . 5 5.3 Additional Monitoring Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 5.4 Soil Vapor Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 6.0 FUTURE SITE REMEDIATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 7.0 SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS . . . . . . . . . . . . . . . . 7 8.0 STATEMENTS AND CERTIFICATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 DRAWINGS TABLES APPENDICES Appendix A Selected Historical Site Information Appendix B Well Construction Records Appendix C Mid-Atlantic Field Procedures Appendix D Laboratory Analytical Reports and Chain-of-Custody Records Appendix E Soil Gas Sampling Test Results Letter Report 1.0 INTRODUCTION The subject site is the Speedway 8299 facility located at 291 NC Highway 42 East in Clayton, Johnston County, North Carolina (Drawing 1.1). The site is currently in use as a convenience store and retail petroleum dispensing facility and operates one 12,000-gallon gasoline UST, two 6,000-gallon gasoline USTs and one 10,000-gallon diesel UST. The layout of the facility is shown on Drawing 1.2. On August 8, 2016, gasoline was observed inside the containment sumps for both the submersible turbine pump (STP) and the #1 and #2 dispensers associated with the 6,000-gallon regular unleaded gasoline UST (Drawing 1.2). Upon detection, the system was immediately taken out of service until the source of the release (loose connection of valve) could be repaired. A Phase I LSA was conducted at the site in September 2016. Free product was detected in one well (MW-1) and a subsequent AFVR event was performed to recover free product from the water table. Based on the results of the Phase I LSA, the release was classified as high risk with an RRA score of H-255-D due to the presence of two confirmed water-supply wells located within 1,000 feet of the source area of the release. Additional monitoring wells were installed in June 2017 and an MMPE event to recover additional free product from the water table was conducted. Following the completion of the initial MMPE, a CSA was conducted at the site. During the completion of the CSA, six additional type II monitoring wells and one type III deep well were installed on site. It was noted during the second phase of CSA drilling completed in November 2018 that the free product thickness on site had increased significantly in monitoring wells MW-1, MW-3, MW-5 and MW-6. Mid-Atlantic requested a second MMPE event to be conducted while the CSA activities were completed. The second MMPE event was completed using monitoring wells MW-1, MW-3, MW-5, and MW-6 during the week of January 14 through January 18, 2019. Free product gauging indicated that free product was still present in monitoring wells MW-1, MW-3, MW-5, and MW-6. Consequently, consecutive 96-hour events were conducted during the weeks of December 2 through December 6 and December 9 through December 13, 2019. Prior to post MMPE groundwater sampling conducted on January 7, 2020, two additional type II monitoring wells were installed on site. An additional MMPE event was conducted from July 20 through July 24, 2020. Following the July 2020 MMPE event and subsequent August 2020 groundwater sampling event, three additional type II monitoring wells were installed to help define the groundwater plume to the Gross Contaminant Levels (GCLs). Additional MMPE events were conducted from February 8, 2021 through February 12, 2021, August 30, 2021 through September 3, 2021, and March 21, 2022 through March 25, 2022. This report documents the post MMPE groundwater sampling activities conducted on April 13, 2022. Selected site historical information is provided in Appendix A. The opinions included herein are based on our experience and the information obtained during the study. This report is based on limited observations made on the dates noted using the procedures described herein. If additional information becomes available, we request the opportunity to review the information, reassess the potential environmental concerns and modify our conclusions and recommendations, if appropriate. 2.0 SITE HISTORY AND SOURCE CHARACTERIZATION 2.1 UST Information According to the UST Section’s Registration database, the site’s Facility I.D. number is 0-036192. The following table summarizes the UST System information. UST Information UST Information Tank No. Constr. Type Install Date Size (gal) Tank Dimensions Last Contents Previous Contents (if any) 1 Fiberglass CladSteel 5/1/2001 6,000 Unknown Gasoline Unknown 2 Fiberglass CladSteel 5/1/2001 6,000 Unknown Gasoline Unknown 3 Fiberglass Clad Steel 5/1/2001 12,000 Unknown Gasoline Unknown 4 Fiberglass Clad Steel 5/1/2001 10,000 Unknown Diesel Unknown 2.2 UST System Owner/Operator Speedway LLC is listed as the current owner/operator of the UST System. 2.3 Information on Source of Release On August 5, 2016, gasoline was observed inside the containment sumps for both the STP and the #1 and #2 dispensers associated with the 6,000-gallon regular unleaded gasoline UST (Drawing 1.2). Upon detection, the system was immediately taken out of service until the source of the release (loose connection of valve) could be repaired. The approximate locations of the STP sump and dispenser sump where the fuel/water mixtures were initially observed are shown on Drawing 1.2. 2.4 Regional Geology and Hydrogeology According to the map titled Geology of North Carolina (1985), prepared by the North Carolina Geological Survey Section of the NCDEQ, the subject site is located in the areas known as the Yorktown Formation and the Duplin Formation. The Yorktown Formation is comprised of fossiliferous clay with varying amounts of fine-grained sand which is bluish Groundwater Monitoring Report Speedway 8299 Clayton, North Carolina June 8, 2022 Page 2 gray in color, and shell material commonly concentrated in lenses which are located mainly in the area north of the Neuse River. The Duplin Formation is comprised of shelly, medium- to coarse-grained sand, sandy marl, and limestone which is bluish gray in color and is located mainly in the area south of the Neuse River. Based on descriptions of subsurface geology, the subject site is located in the Yorktown Formation. The subject site is located in the Coastal Plain physiographic region. In the coastal plain, an aquifer is typically composed of one to several layers of eastward thickening, permeable sands or limestone split by discontinuous, clay-rich materials. Confining units, consisting of clay-rich sediments, exist above and below an aquifer. These confining units are more continuous clay layers and separate the aquifer. The surficial or unconfined aquifer overlies all the confined aquifers in the coastal plain. 2.5 Site Geology and Hydrogeology Selected historical site assessment data is provided in Appendix A. GENERAL GEOLOGIC PROFILE COMPREHENSIVE SITE ASSESSMENT REPORT, FEBRUARY 22, 2019 DEPTH (FT BLS)GEOLOGIC DESCRIPTION 0 – 32 feet (approx.) Natural deposits primarily consist of sandy silty clays, clayey silts and silty clays with varying thicknesses. 35 – 65 feet Sandy silt and silty sand. Bedrock not encountered to a depth of 65 feet. HYDROGEOLOGICAL PARAMETERS PARAMETER RESULT Average Depth to Shallow Groundwater, April 13, 2022 12.66 feet Maximum Observed Seasonal Fluctuation in Depth to Groundwater (February 2021 to April 2022) Approximately 6.61 feet Groundwater Flow Direction April 13, 2022 Generally north-northwest Hydraulic Gradient (Horizontal) April 13, 2022 0.020 ft/ft (measured from MW-8 toMW-2) 3.0 POTENTIAL RECEPTORS Receptor information for the site was previously documented in Mid-Atlantic’s Phase I Limited Site Assessment dated December 6, 2016. A receptor survey update was not conducted during this monitoring event. Please refer to previous reports for detailed receptor information. As indicated, the site is currently classified as “high” risk due to the presence of free product on the water table and two confirmed (and several other likely) drinking water supply wells located within 1,000 feet of the source area of the release. Groundwater Monitoring Report Speedway 8299 Clayton, North Carolina June 8, 2022 Page 3 According to the USGS topographic quadrangle map of Clayton, North Carolina (Drawing 1.1), the nearest surface water body is an unnamed tributary to the Neuse River, located approximately 1,400 feet northeast of the source area of the release. 4.0 FIELD ACTIVITIES On April 13, 2022 Mid-Atlantic personnel mobilized to the site to conduct post MMPE groundwater sampling, which included liquid level measurements. Refer to Mid-Atlantic's Free Product Recovery Report dated June 8, 2022 for results of the MMPE event. 4.1 Monitoring Well Installation One additional type II monitoring well was installed at the site to better define the groundwater plume to the GCLs. On February 24, 2022, monitoring well MW-16 was installed to a depth of 20 feet below land surface to the north of the convenience storebuilding. The location of the monitoring well is depicted on Drawing 1.2. Monitoring well construction details are summarized in Table 4.1 and construction records and soil boring logs are provided in Appendix B. 4.2 Liquid Level Measurements Mid-Atlantic personnel collected depth to free product and/or depth to groundwater measurements from site monitoring wells on April 13, 2022. Monitoring well construction details are provided in Table 4.1. Liquid level measurements, along with historical measurements, are summarized in Table 4.2. As indicated, monitoring wells MW-1,MW-3, MW-5, MW-6, MW-11, and MW-12 exhibited approximately 0.37, 0.05, 2.81, 0.25, 0.05, and 0.34 feet of free product, respectively. Free product was not detected in wells MW-2, MW-4, MW-6D, MW-7 through MW-10, and MW-13 through MW-16. Liquid level measurements for the April 13, 2022 gauging activities is illustrated on Drawing 4.1. 4.3 Monitoring Well Sample Collection Mid-Atlantic personnel collected groundwater samples from the monitoring wells MW-2, MW-4, MW-6D, MW-7 through MW-10, and MW-13 through MW-16 on April 13, 2022. Groundwater samples were not collected from monitoring wells containing free product. Groundwater samples were collected using the procedures described in Appendix C. Samples were shipped to Pace National Laboratory (Pace) in Mt. Juliet, Tennessee and analyzed by the methods shown on the chain-of-custody record provided in Appendix D. 4.4 Soil Vapor Sample Collection In order to determine interior vapor conditions from petroleum groundwater impacts, Mid-Atlantic collected two soil vapor samples (SSSG-1 and SSSG-2) from within the convenience store building. Samples were collected on February 25, 2022 and the Groundwater Monitoring Report Speedway 8299 Clayton, North Carolina June 8, 2022 Page 4 sample locations are depicted on Drawing 1.2. Sampling methodology is provided in the recent Soil Gas Sampling Results letter report dated May 3, 2022 and included as Appendix E. 5.0 DISCUSSION OF SAMPLING RESULTS 5.1 Summary of Analytical Results The laboratory analytical report and chain-of-custody record for groundwater samples collected on April 13, 2022 are provided in Appendix D and the results of selected target compounds are summarized in Table 5.1 and on Drawings 5.1 and 5.2. As summarized, the groundwater samples collected from wells MW-7, MW-8, MW-10, and MW-14 exhibited several contaminant concentrations above the NCGQS but below the GCLs. Samples collected from monitoring wells MW-2 and MW-13 exhibited concentrations of benzene above its GCL. Contaminants of concern were not detected in the groundwater samples collected from wells MW-4, MW-6D, MW-9, and MW-16 above the laboratory method detection limits. 5.2 Description of Current Plume Size and Location Free Product On March 21, 2022, gasoline free product was measured in monitoring wells MW-1, MW-3, MW-5, MW-6, MW-11, MW-12 and MW-13 at a thickness of 6.38, 2.37, 3.15, 3.15, 0.59, 4.24, and 4.25 feet, respectively. Wells MW-1, MW-3, MW-5, MW-6, and MW-11 have historically exhibited free product. Well MW-12 was installed in January of 2020 and well MW-13 was installed in January of 2021. As such, free product was detected in wells MW-12 and MW-13 for the third time since installation during the start of the March 2022 MMPE event. During the April 2022 groundwater monitoring event, free product measured in monitoring wells MW-1, MW-3, MW-5, MW-6, MW-11, and MW-12 exhibited approximately 0.37, 0.05, 2.81, 0.25, 0.05, and 0.34 feet of free product, respectively. No free product was observed in monitoring well MW-13 during the April 2022 monitoring event. Based on the results illustrated by the free product gauging activities, the thickness of the free product observed in monitoring wells MW-1, MW-3, MW-5, MW-6, MW-11, MW-12, and MW-13 appears to have diminished since March 21, 2022.Overall, the free product plume appears to be expanding/migrating towards the west and may now be underneath a portion of the convenience store building. Additional information regarding free product recovery is provided in the recent Free Product Recovery Report dated June 8, 2022.The free product plume appears to be delineated within the existing monitoring well network as depicted on Drawing 5.3. Groundwater Monitoring Report Speedway 8299 Clayton, North Carolina June 8, 2022 Page 5 Groundwater Isoconcentration maps for benzene and naphthalene for the April 13, 2022 groundwater sampling event are provided as Drawings 5.1 and 5.2, respectively. The dissolved-phasegroundwater contaminant plume is not fully delineated to the extent of the NCGQS,. With the migration of the free product plume towards the west and sampling results from newly installed monitoring well MW-16, the plume appears to be delineated towards the northwest (to the north of the convenience store). 5.3 Additional Monitoring Information • Proximity of Plume to Nearest Receptor Based on the results of the LSA receptor survey, there are two confirmed water-supply wells within 1,000 feet of the source area of the release and three confirmed water-supply wells within 1,500 feet of the source area of the release. The nearest potential receptor is the Greer Water-Supply Well (109 Neuse Ridge Drive), located approximately 375 feet northwest of the release. Please note that monitoring well MW-4 was installed between the source area of the release and the off-site Greer Water-Supply Well.As indicated in Section 5.1, contaminants of concern were not detected in the groundwater sample collected from this well at concentrations exceeding the laboratory method detection limits or the NCGQS. With the migration of the free product plume in a westerly direction, this plume may now be partially underneath the convenience store building. • Groundwater Flow Direction Based on measurements collected on April 13, 2022, groundwater appears to be highest at well MW-8 and flow towards the north and towards the west with a hydraulic gradient (measured from MW-8 towards MW-2) of approximately 0.020 ft/ft. An Estimated Water Table Contour Map is provided as Drawing 4.1 (Note: estimated water elevation levels for wells MW-1, MW-3, MW-5, MW-6, MW-11, and MW-12 were not shown due to the presence of free product). As shown on the drawings in Appendix A, historical groundwater flow has varied between east, north, and west. Water level measurements and groundwater elevation data, as well as historical measurements, are provided in Table 4.2. The hydraulic gradient was calculated using the procedure discussed in Appendix C. 5.4 Soil Vapor Sample Results Contaminants of concern were detected in both soil vapor samples at concentrations exceeding laboratory method detection limits. However, risk calculator results indicatethat the soil vapor beneath the convenience store building’s floor slab does not appear to pose an unacceptable risk to the occupants of the building. Additional information is summarized in the Soil Gas Sampling Results letter included as Appendix E. Groundwater Monitoring Report Speedway 8299 Clayton, North Carolina June 8, 2022 Page 6 6.0 FUTURE SITE REMEDIATION According to the NCDEQ, the incident is currently ranked “high risk” due to the presence of free product on the water table and two confirmed drinking water supply wells (and likely several more) located within 1,000 feet of the source area of the release. The nearest surface water body is an unnamed tributary to the Neuse River, located approximately 1,400 feet northeast of the source area of the release. Mid-Atlantic is moving the site towards a remedial active approach. Dual Phase Extraction (DPE) is currently planned to be implemented at this site and is being evaluated for the logistics/feasibility of implementation. Mid-Atlantic recommends continuing to conduct 96-hour MMPE events for free product removal. The next event should be conducted in September 2022 or earlier. 7.0 SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS Site activities included in this report are summarized as follows: • Depth to groundwater and free product thickness were measured in site monitoring wells; and • Groundwater samples were collected from site monitoring wells that did not contain a measurable amount of free product. Based on the results of the April 13, 2022 sampling activities, Mid-Atlantic concludes the following: • Free product is present on the water table in thicknesses up to 2.81 feet and appears to be migrating towards the west; • With the migration of the free product plume towards the west, the plume now appears to be partially under the convenience store building; • The groundwater samples collected from the site exhibited concentrations above the NCGQS and the GCLs; • Sampling results for newly installed monitoring well MW-16, which is located to the north of the convenience store building, indicate that the dissolved phase contaminant plume does not extend to that portion of the subject site; • The groundwater sample collected from well MW-4 (installed between the source area of the release and the Greer Water-Supply Well) did not exhibit contaminants concentrations above the NCGQS. In addition, contaminants of Groundwater Monitoring Report Speedway 8299 Clayton, North Carolina June 8, 2022 Page 7 concern were not detected in the groundwater sample collected from MW-4 at concentrations above the laboratory method detection limits; • Groundwater appears to be highest at well MW-8 and flows towards the north and west with a hydraulic gradient (measured from MW-8 towards MW-2) of approximately 0.020 ft/ft; and • Soil vapor sampling from February 2022 indicate that the soil vapor beneath the convenience store building's floor slab does not pose an unacceptable risk to the occupants of the building. Based on the conclusions, Mid-Atlantic recommends the following: • Continued periodic sampling (at least semi-annual) of the monitoring wells to evaluate contaminant plume movement; • Continue to move the site towards a remedial active approach. DPE is currently planned to be implemented at this site; • Conducting MMPE events for free product removal until the majority of freeproduct has been removed and/or a remedial approach can be implemented; and, • Submittal of this report to the NCDEQ for their review and comment. 8.0 STATEMENTS AND CERTIFICATION The following statements must be included at the closing of the document text, and must display the seal and signature of the certifying P.E. or L.G. in addition to the name and certification number of the company or corporation [See 15A NCAC 2L .0103(e).] NO.DESCRIPTION YES NO 1 Enter the date the monitoring report was due.Not established. Willthis report be submitted after the established due date? 2 Was any required information from the above template missing from this report? If the answer to question #1 or# 2 is “YES”, please provide additional information in this cell to explain what was missing and why. Pertinent information regarding site groundwater conditions is provided throughout the report and selected historical assessment information is provided in Appendix A. 3 If applicable, will any of the proposed attenuation milestones under theschedule approved in the Corrective Action Plan not be met? (within areasonable margin of error)N/A Groundwater Monitoring Report Speedway 8299 Clayton, North Carolina June 8, 2022 Page 8 If the answer to question #3 is ÒNOÓ, skip to the certification under #8 below. If the answer to question #3 is ÒYESÓ, please generally describe in this cell the possible reason(s) and outline proposed remedies. (This should be described in more detail in the report text above.) 4 Does any known or suspected source zone soil contamination or freeproduct remain outside of the assessed area that could be inhibitingnatural attenuation? 5 Has there been an unexpected increase in contaminant mass sufficient to suggest a potential new release from a separate onsite or offsite source? If the answer to either question #4 or #5 is ÒYESÓ, generally describe in this cell any actions recommended to further assess or clean up this known or suspected source. 6 I,, a Licensed Geologist for , do certify that the information contained in this report is correct and accurate to the best of my knowledge. is licensed to practice geology/engineering in North Carolina. The certification numbers of the company or corporation are . DRAWINGS DRAWN BY: DATE: ENG. CHECK: JOB NO: APPROVAL: CHH DRAFTCHECK: GIS NO: FIG NO: 1.1 SUBJECT SITE ´ 1:12,000SCALE: §¨¦I40 §¨¦I95 §¨¦I440 §¨¦U70 §¨¦U64 §¨¦U264§¨¦N540 §¨¦U1 JOHNSTON WAKE HARNETT NASH WAYNE WILSON 0 1,000 2,000500Feet REFERENCES: 1. USGS TOPOGRAPHIC QUADRANGLE: CLAYTON, NC - 20162. PROPERTY BOUNDARY FROM JOHNSTON COUNTY GIS3. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION ATLAS,BUREAU OF TRANSPORATION STATISTICS, WASHINGTON, D.C. TOPOGRAPHIC SITE MAPSPEEDWAY 8299291 NC HIGHWAY 42 E.CLAYTON, NORTH CAROLINA MAY 2022 000R2826.15 5G-R2826.14-01 AREA SHOWN WITHINNORTH CAROLINA CHH CHH CONTOUR INTERVAL = 10 FEET JIE JIE JIE JIE JIE TABLES MW-1 2 9/29/2016 23 98.82 8 to 23 MW-2 2 9/29/2016 23 96.68 8 to 23 MW-3 2 6/13/2017 18 97.63 8 to 18 MW-4 2 6/13/2017 19 98.63 9 to 19 MW-5 2 3/27/2018 20 98.28 10 to 20 MW-6 2 3/9/2018 20 100.79 10 to 20 MW-6D 2 10/23/2018 56/65 98.88 60 to 65 MW-7 2 3/8/2018 20 99.21 10 to 20 MW-8 2 3/8/2018 18 96.92 8 to 18 MW-9 2 10/23/2018 20 98.19 10 to 20 MW-10 2 10/23/2018 20 98.60 10 to 20 MW-11 2 1/6/2020 20 99.00 10 to 20 MW-12 2 1/6/2020 20 97.39 10 to 20 MW-13 2 1/26/2021 18 98.73 8 to 18 MW-14 2 1/26/2021 18 97.05 8 to 18 MW-15 2 1/26/2021 18 97.45 8 to 18 MW-16 2 2/24/2022 20 99.11 10 to 20 NOTES: BLS - Below land surface WELL NUMBER DIAMETER (INCHES) CONSTRUCTION DATE CASING DEPTH (FEET BLS) SCREENED INTERVAL (FEET BLS) TOP OF CASING ELEVATION (FEET) TABLE 4.1 MONITORING WELL CONSTRUCTION INFORMATION SPEEDWAY 8299 CLAYTON, NORTH CAROLINA MID-ATLANTIC JOB NO. 000R2826.15 WELL NUMBER DATE TOC (ft)DTP (ft)APPARENT FP THICKNESS (ft)DTW (ft), BTOC CORRECTED DTW (ft)SWLE (ft) MW-1 09/30/16 98.82 14.93 0.50 15.43 15.07 83.76 MW-1 06/15/17 98.82 11.86 1.07 12.93 12.15 86.67 MW-1 02/12/18 98.82 13.38 1.44 14.82 13.77 85.05 MW-1 03/09/18 98.82 12.75 2.13 14.88 13.33 85.49 MW-1 10/26/18 98.82 11.79 4.98 16.77 13.13 85.69 MW-1 01/14/19 98.82 7.18 9.43 16.61 9.73 89.09 MW-1 05/06/19 98.82 9.16 13.84 23.00 12.90 85.92 MW-1 12/02/19 98.82 13.93 5.88 19.81 15.52 83.30 MW-1 01/07/20 98.82 13.83 1.25 15.08 14.17 84.65 MW-1 08/13/20 98.82 12.38 0.72 13.10 12.57 86.25 MW-1 02/23/21 98.82 6.76 0.02 6.78 6.77 92.05 MW-1 02/24/21 98.82 6.97 0.06 7.03 6.99 91.83 MW-1 08/30/21 98.82 13.81 3.32 17.13 14.71 84.11 MW-1 09/24/21 98.82 15.69 1.18 16.87 16.01 82.81 MW-1 03/21/22 98.82 12.32 6.38 18.70 14.04 84.78 MW-1 04/13/22 98.82 13.09 0.37 13.46 13.19 85.63 MW-2 09/30/16 96.68 --0.00 12.96 --83.72 MW-2 06/15/17 96.68 --0.00 10.06 --86.62 MW-2 02/12/18 96.68 --0.00 11.27 --85.41 MW-2 03/09/18 96.68 --0.00 11.07 --85.61 MW-2 10/26/18 96.68 --0.00 11.99 --84.69 MW-2 01/14/19 96.68 --0.00 7.21 --89.47 MW-2 05/06/19 96.68 --0.00 7.39 --89.29 MW-2 12/02/19 96.68 --0.00 13.19 --83.49 MW-2 01/07/20 96.68 --0.00 11.09 --85.59 MW-2 08/13/20 96.68 --0.00 10.35 --86.33 MW-2 02/24/21 96.68 --0.00 5.49 --91.19 MW-2 08/30/21 96.68 --0.00 12.47 --84.21 MW-2 09/24/21 96.68 --0.00 13.82 --82.86 MW-2 04/13/22 96.68 --0.00 10.98 --85.70 MW-3 MW-3 06/15/17 97.63 10.52 1.59 12.11 10.95 86.68 MW-3 02/12/18 97.63 10.55 6.39 16.94 12.28 85.35 MW-3 03/09/18 97.63 11.69 2.15 13.84 12.27 85.36 MW-3 10/26/18 97.63 9.67 7.96 17.63 11.82 85.81 MW-3 01/14/19 97.63 6.01 7.49 13.50 8.03 89.60 MW-3 05/06/19 97.63 7.38 5.70 13.08 8.92 88.71 MW-3 12/02/19 97.63 13.67 4.08 17.75 14.77 82.86 MW-3 01/07/20 97.63 11.65 3.67 15.32 12.64 84.99 MW-3 08/13/20 97.63 11.09 1.89 12.98 11.60 86.03 MW-3 02/23/21 97.63 5.72 0.06 5.78 5.74 91.89 MW-3 02/24/21 97.63 5.97 0.05 6.02 5.98 91.65 MW-3 08/30/21 97.63 13.03 2.37 15.40 13.67 83.96 MW-3 09/24/21 97.63 14.44 1.70 16.14 14.90 82.73 MW-3 03/21/22 97.63 13.03 2.37 15.40 13.67 83.96 MW-3 04/13/22 97.63 12.20 0.05 12.25 12.21 85.42 Monitoring well installed 6/13/17 TABLE 4.2SUMMARY OF HISTORICAL LIQUID LEVEL MEASUREMENTSSPEEDWAY 8299CLAYTON, NORTH CAROLINADWM INCIDENT NO.: 42007MID-ATLANTIC JOB NO. R2826.15 WELL NUMBER DATE TOC (ft)DTP (ft)APPARENT FP THICKNESS (ft)DTW (ft), BTOC CORRECTED DTW (ft)SWLE (ft) TABLE 4.2SUMMARY OF HISTORICAL LIQUID LEVEL MEASUREMENTSSPEEDWAY 8299CLAYTON, NORTH CAROLINADWM INCIDENT NO.: 42007MID-ATLANTIC JOB NO. R2826.15 MW-4 MW-4 06/15/17 98.63 --0.00 11.69 --86.94 MW-4 03/09/18 98.63 --0.00 12.72 --85.91 MW-4 10/26/18 98.63 --0.00 12.87 --85.76 MW-4 01/14/19 98.63 --0.00 NM --NM MW-4 05/06/19 98.63 --0.00 8.84 --89.79 MW-4 12/02/19 98.63 --0.00 NM --NM MW-4 01/07/20 98.63 --0.00 12.74 --85.89 MW-4 08/13/20 98.63 --0.00 11.88 --86.75 MW-4 02/24/21 98.63 --0.00 7.21 --91.42 MW-4 09/24/21 98.63 --0.00 15.70 --82.93 MW-4 04/13/22 98.63 --0.00 12.84 --85.79 MW-5 MW-5 03/09/18 98.28 11.52 0.20 11.72 11.57 86.71 MW-5 10/26/18 98.28 9.08 8.68 17.76 11.42 86.86 MW-5 01/14/19 98.28 3.95 12.38 16.33 7.29 90.99 MW-5 05/06/19 98.28 7.24 7.86 15.10 9.36 88.92 MW-5 12/02/19 98.28 12.25 5.41 17.66 13.71 84.57 MW-5 01/07/20 98.28 11.73 0.21 11.94 11.79 86.49 MW-5 08/13/20 98.28 10.91 0.14 11.05 10.95 87.33 MW-5 02/23/21 98.28 5.42 0.02 5.44 5.43 92.85 MW-5 02/24/21 98.28 5.37 0.99 6.36 5.64 92.64 MW-5 08/30/21 98.28 11.57 5.36 16.93 13.02 85.26 MW-5 09/24/21 98.28 13.99 1.01 15.00 14.26 84.02 MW-5 03/21/22 98.28 15.02 3.15 18.17 15.87 82.41 MW-5 04/13/22 98.28 11.42 2.81 14.23 12.18 86.10 MW-6 MW-6 03/09/18 100.79 13.80 0.19 13.99 13.85 86.94 MW-6 10/26/18 100.79 12.14 5.49 17.63 13.62 87.17 MW-6 01/14/19 100.79 11.05 6.06 17.11 12.69 88.10 MW-6 05/06/19 100.79 10.18 6.06 16.24 11.82 88.97 MW-6 12/02/19 100.79 15.12 4.30 19.42 16.28 84.51 MW-6 01/07/20 100.79 14.04 0.28 14.32 14.12 86.67 MW-6 08/13/20 100.79 13.05 0.08 13.13 13.07 87.72 MW-6 02/23/21 100.79 6.28 3.44 9.72 7.21 93.58 MW-6 02/24/21 100.79 6.45 3.45 9.90 7.38 93.41 MW-6 08/30/21 100.79 14.93 1.30 16.23 15.28 85.51 MW-6 09/24/21 100.79 16.49 0.22 16.71 16.55 84.24 MW-6 03/21/22 100.79 15.02 3.15 18.17 15.87 84.92 MW-6 04/13/22 100.79 13.92 0.25 14.17 13.99 86.80 Monitoring well installed 3/7/2018 Monitoring well installed 6/13/17 Monitoring well installed 3/9/2018 WELL NUMBER DATE TOC (ft)DTP (ft)APPARENT FP THICKNESS (ft)DTW (ft), BTOC CORRECTED DTW (ft)SWLE (ft) TABLE 4.2 SUMMARY OF HISTORICAL LIQUID LEVEL MEASUREMENTS SPEEDWAY 8299 CLAYTON, NORTH CAROLINA DWM INCIDENT NO.: 42007 MID-ATLANTIC JOB NO. R2826.15 MW-6D MW-6D 10/26/18 98.88 --0.00 13.56 --85.32 MW-6D 01/14/19 98.88 --0.00 NM --NM MW-6D 05/06/19 98.88 --0.00 9.57 --89.31 MW-6D 12/02/19 98.88 --0.00 NM --NM MW-6D 01/07/20 98.88 --0.00 NM --NM MW-6D 08/13/20 98.88 --0.00 12.74 --86.14 MW-6D 02/24/21 98.88 --0.00 7.19 --91.69 MW-6D 09/24/21 98.88 --0.00 16.20 --82.68 MW-6D 04/13/22 98.88 --0.00 13.91 --84.97 MW-7 MW-7 03/09/18 99.21 --0.00 12.67 --86.54 MW-7 10/26/18 99.21 --0.00 12.51 --86.70 MW-7 01/14/19 99.21 --0.00 NM --NM MW-7 05/06/19 99.21 --0.00 8.61 --90.60 MW-7 12/02/19 99.21 --0.00 14.86 --84.35 MW-7 01/07/20 99.21 --0.00 7.30 --91.91 MW-7 08/13/20 99.21 --0.00 12.11 --87.10 MW-7 02/24/21 99.21 --0.00 6.49 --92.72 MW-7 08/30/21 99.21 --0.00 14.11 --85.10 MW-7 09/24/21 99.21 --0.00 15.24 --83.97 MW-7 03/21/22 99.21 --0.00 14.76 --84.45 MW-7 04/13/22 99.21 --0.00 12.59 --86.62 MW-8 MW-8 03/09/18 96.92 --0.00 10.22 --86.70 MW-8 10/26/18 96.92 --0.00 10.20 --86.72 MW-8 01/14/19 96.92 --0.00 NM --NM MW-8 05/06/19 96.92 --0.00 6.68 --90.24 MW-8 12/02/19 96.92 --0.00 NM --NM MW-8 01/07/20 96.92 --0.00 7.74 --89.18 MW-8 08/13/20 96.92 --0.00 9.62 --87.30 MW-8 02/24/21 96.92 --0.00 4.82 --92.10 MW-8 09/24/21 96.92 --0.00 12.88 --84.04 MW-8 04/13/22 96.92 --0.00 10.09 --86.83 Monitoring well installed 3/8/2018 Monitoring well installed 3/8/2018 Monitoring well installed 10/25/2018 WELL NUMBER DATE TOC (ft)DTP (ft)APPARENT FP THICKNESS (ft)DTW (ft), BTOC CORRECTED DTW (ft)SWLE (ft) TABLE 4.2SUMMARY OF HISTORICAL LIQUID LEVEL MEASUREMENTSSPEEDWAY 8299CLAYTON, NORTH CAROLINADWM INCIDENT NO.: 42007 MID-ATLANTIC JOB NO. R2826.15 MW-9 MW-9 10/26/18 98.19 --0.00 12.47 --85.72 MW-9 01/14/19 98.19 --0.00 NM --NM MW-9 05/06/19 98.19 --0.00 8.59 --89.60 MW-9 12/02/19 98.19 --0.00 15.01 --83.18 MW-9 01/07/20 98.19 --0.00 7.03 --91.16 MW-9 08/13/20 98.19 --0.00 12.05 --86.14 MW-9 02/23/21 98.19 --0.00 5.94 --92.25 MW-9 02/24/21 98.19 --0.00 6.16 --92.03 MW-9 08/30/21 98.19 --0.00 14.14 --84.05 MW-9 09/24/21 98.19 --0.00 15.39 --82.80 MW-9 03/22/22 98.19 --0.00 14.39 --83.80 MW-9 04/13/22 98.19 --0.00 12.71 --85.48 MW-10 MW-10 10/26/18 98.60 --0.00 13.19 --85.41 MW-10 01/14/19 98.60 --0.00 NM --NM MW-10 05/06/19 98.60 --0.00 9.02 --89.58 MW-10 12/02/19 98.60 --0.00 15.59 --83.01 MW-10 01/07/20 98.60 --0.00 6.38 --92.22 MW-10 08/13/20 98.60 --0.00 12.81 --85.79 MW-10 02/23/21 98.60 --0.00 6.58 --92.02 MW-10 02/24/21 98.60 --0.00 6.79 --91.81 MW-10 08/30/21 98.60 --0.00 14.77 --83.83 MW-10 09/24/21 98.60 --0.00 15.92 --82.68 MW-10 03/22/22 98.60 --0.00 14.18 --84.42 MW-10 04/13/22 98.60 --0.00 13.34 --85.26 MW-11 MW-11 01/07/20 99.00 --0.00 13.46 --85.54 MW-11 08/13/20 99.00 --0.00 12.66 --86.34 MW-11 02/23/21 99.00 7.01 0.37 7.38 7.11 91.89 MW-11 02/24/21 99.00 7.23 0.39 7.62 7.34 91.66 MW-11 08/30/21 99.00 14.41 1.16 15.57 14.72 84.28 MW-11 09/24/21 99.00 15.74 1.36 17.10 16.11 82.89 MW-11 03/21/22 99.00 13.62 0.59 14.21 13.78 85.22 MW-11 04/13/22 99.00 13.19 0.05 13.24 13.20 85.80 MW-12 MW-12 01/07/20 97.39 --0.00 11.78 --85.61 MW-12 08/13/20 97.39 --0.00 10.94 --86.45 MW-12 02/24/21 97.39 --0.00 6.09 --91.30 MW-12 08/30/21 97.39 11.28 6.70 17.98 13.09 84.30 MW-12 09/24/21 97.39 14.28 0.96 15.24 14.54 82.85 MW-12 03/21/22 97.39 11.14 4.24 15.38 12.28 85.11 MW-12 04/13/22 97.39 11.46 0.34 11.80 11.55 85.84 MW-13 MW-13 02/23/21 98.73 --0.00 7.04 --91.69 MW-13 02/24/21 98.73 --0.00 7.21 --91.52 MW-13 08/30/21 98.73 15.10 2.63 17.73 15.81 82.92 MW-13 09/24/21 98.73 14.98 2.76 17.74 15.73 83.00 MW-13 03/21/22 98.73 12.50 4.25 16.75 13.65 85.08 MW-13 04/13/22 98.73 --0.00 12.82 --85.91 Monitoring well installed 1-7-20 Monitoring well installed 1-7-20 Monitoring well installed 1-28-21 Monitoring well installed 10/23/2018 Monitoring well installed 10/23/2018 WELL NUMBER DATE TOC (ft)DTP (ft)APPARENT FP THICKNESS (ft)DTW (ft), BTOC CORRECTED DTW (ft)SWLE (ft) TABLE 4.2SUMMARY OF HISTORICAL LIQUID LEVEL MEASUREMENTSSPEEDWAY 8299CLAYTON, NORTH CAROLINADWM INCIDENT NO.: 42007MID-ATLANTIC JOB NO. R2826.15 MW-14 MW-14 02/24/21 97.05 --0.00 5.84 --91.21 MW-14 08/30/21 97.05 --0.00 12.77 --84.28 MW-14 09/24/21 97.05 --0.00 14.21 --82.84 MW-14 04/13/22 97.05 --0.00 11.23 --85.82 MW-15 MW-15 02/24/21 97.45 --0.00 6.15 --91.30 MW-15 09/24/21 97.45 --0.00 15.54 --81.91 MW-15 04/13/22 97.45 --0.00 11.50 --85.95 MW-16 MW-16 04/13/22 99.11 --0.00 13.23 --85.88 Notes: Shaded cells indicate that the water level has been corrected for the presence of free product (DTW - (0.73*FP Thickness)) 0.73 is the approximate specific gravity of gasoline at 60 degrees Farenheit.BTOC - Below Top of Casing (TOC)DTP - Depth to Free Product (in feet)DTW - Depth to Water (in feet)SWLE - Static Water Elevation (in feet) Monitoring well installed 2-24-22 FP - Free Product Monitoring well installed 1-28-21 Monitoring well installed 1-28-21 5,000 84,500 260,000 85,500 20,000 70,000 6,000 15,000 1 600 600 500 20 70 6 400 200 700 15 Well Number Sample Date Benzene Ethyl Benzene Toluene Xylenes Methyl tert- Butyl ether (MTBE) Diisopropyl Ether (DIPE)Naphthalene C5-C8 Aliphatics C9-C22 Aromatics C9-C18 Aliphatics Lead 09/30/16 FP FP FP FP FP FP FP NA NA NA NA06/15/17 FP FP FP FP FP FP FP NA NA NA NA03/09/18 FP FP FP FP FP FP FP NA NA NA NA 10/24/18 FP FP FP FP FP FP FP NA NA NA NA05/06/19 FP FP FP FP FP FP FP NA NA NA NA01/07/20 FP FP FP FP FP FP FP NA NA NA NA 08/13/20 FP FP FP FP FP FP FP NA NA NA NA02/24/21 FP FP FP FP FP FP FP NA NA NA NA09/24/21 FP FP FP FP FP FP FP NA NA NA NA 04/13/22 FP FP FP FP FP FP FP NA NA NA NA 09/30/16 111 7.6 12.7 130.4 579 1.73 25.5 661 117 288 ND 06/14/17 2,660 319 3,090 1,444 536 17.1 122 NA NA NA NA 03/09/18 5,060 863 9,760 4,150 115 ND 170 J NA NA NA NA 10/24/18 2,560 558 4,670 2,370 249 ND 164 NA NA NA NA 05/06/19 3,910 525 4,200 1,885 38.2 J ND 140 J NA NA NA NA 01/07/20 4,350 1,050 8,670 4,240 116 ND 231 NA NA NA NA 08/13/20 4,770 1,040 6,920 3,750 ND 11.6 J 243 J NA NA NA NA 02/24/21 5,590 792 4,860 1,984 33.2 J ND NDa NA NA NA NA 09/24/21 9,590 1,570 13,100 4,883 81.4 ND 623 NA NA NA NA 04/13/22 4,020 1,390 6,320 3,750 ND ND 588 NA NA NA NA 06/15/17 FP FP FP FP FP FP FP NA NA NA NA 03/09/18 FP FP FP FP FP FP FP NA NA NA NA10/24/18 FP FP FP FP FP FP FP NA NA NA NA05/06/19 FP FP FP FP FP FP FP NA NA NA NA 01/07/20 FP FP FP FP FP FP FP NA NA NA NA08/13/20 FP FP FP FP FP FP FP NA NA NA NA02/24/21 FP FP FP FP FP FP FP NA NA NA NA 09/24/21 FP FP FP FP FP FP FP NA NA NA NAFPFPFPFPFPFPFPNANANANA 06/14/17 ND ND ND ND ND ND ND ND ND ND 14.503/09/18 ND ND ND ND ND ND ND NA NA NA NA10/24/18 2.01 ND 0.971 J 0.366 J ND ND ND NA NA NA NA 05/06/19 ND ND ND ND ND ND ND NA NA NA NA01/07/20 ND ND ND ND ND ND ND NA NA NA NA 08/13/20 ND ND ND ND ND ND ND NA NA NA NA02/24/21 ND ND ND ND ND ND ND NA NA NA NA09/24/21 ND ND ND ND ND ND ND NA NA NA NA04/13/22 ND ND ND ND ND ND ND NA NA NA NA 03/09/18 FP FP FP FP FP FP FP NA NA NA NA 10/24/18 FP FP FP FP FP FP FP NA NA NA NA05/06/19 FP FP FP FP FP FP FP NA NA NA NA01/07/20 FP FP FP FP FP FP FP NA NA NA NA 08/13/20 FP FP FP FP FP FP FP NA NA NA NA02/24/21 FP FP FP FP FP FP FP NA NA NA NA09/24/21 FP FP FP FP FP FP FP NA NA NA NA 04/13/22 FP FP FP FP FP FP FP NA NA NA NA NCGQS TABLE 5.1 SUMMARY OF CHEMICAL CONSTITUENTS DETECTED IN GROUNDWATER SPEEDWAY 8299 CLAYTON, NORTH CAROLINA MID-ATLANTIC PROJECT NO. 000R2826.15GCL Not Established MW-1 MW-2 MW-4 MW-3 MW-5 Well did not exist 5,000 84,500 260,000 85,500 20,000 70,000 6,000 15,000 1 600 600 500 20 70 6 400 200 700 15 Well Number Sample Date Benzene Ethyl Benzene Toluene Xylenes Methyl tert- Butyl ether (MTBE) Diisopropyl Ether (DIPE)Naphthalene C5-C8 Aliphatics C9-C22 Aromatics C9-C18 Aliphatics Lead NCGQS TABLE 5.1 SUMMARY OF CHEMICAL CONSTITUENTS DETECTED IN GROUNDWATER SPEEDWAY 8299 CLAYTON, NORTH CAROLINA MID-ATLANTIC PROJECT NO. 000R2826.15 GCL Not Established 03/09/18 FP FP FP FP FP FP FP NA NA NA NA 10/24/18 FP FP FP FP FP FP FP NA NA NA NA 05/06/19 FP FP FP FP FP FP FP NA NA NA NA01/07/20 FP FP FP FP FP FP FP NA NA NA NA08/13/20 FP FP FP FP FP FP FP NA NA NA NA 02/24/21 FP FP FP FP FP FP FP NA NA NA NA09/24/21 FP FP FP FP FP FP FP NA NA NA NA04/13/22 FP FP FP FP FP FP FP NA NA NA NA 10/26/18 ND ND 0.784 J ND ND ND ND ND ND ND 5.09 05/06/19 ND ND ND ND ND ND ND ND ND ND 5.0901/07/20 NA NA NA NA NA NA NA NA NA NA NA08/13/20 NA NA NA NA NA NA NA NA NA NA NA 02/24/21 ND ND ND ND ND ND 4.31 J NA NA NA NA09/24/21 ND ND ND ND ND ND ND NA NA NA NA04/13/22 ND ND ND ND ND ND ND NA NA NA NA 03/09/18 2,050 26.2 78.1 191 31.9 ND 37.1 J 5,670 120 354 ND 10/24/18 2,950 117 118 34 ND ND ND NA NA NA NA 05/06/19 6,440 623 6,700 2,369 ND ND 138 J NA NA NA NA 01/07/20 4,330 346 3,200 787 20.4 13.9 75.2 NA NA NA NA 08/13/20 4,460 372 3,840 1,577 18.7 J 11.9 J 102 J NA NA NA NA 02/24/21 7,860 990 10,400 4,210 17.6 J 25.8 J 126 J NA NA NA NA 09/24/21 3,350 330 1,340 660 ND ND ND NA NA NA NA 04/13/22 2,790 182 511 432 6.57 J ND ND NA NA NA NA 03/09/18 ND ND 1.48 1.79 J ND ND ND ND ND ND ND 10/24/18 ND ND ND ND ND ND ND NA NA NA NA05/06/19 1,990 138 382 266.1 36.8 ND 90.6 NA NA NA NA 01/07/20 99.5 ND 0.796 J 46.02 J 4.29 ND 6.17 NA NA NA NA 08/13/20 245 ND ND 85.8 J ND ND 35.7 NA NA NA NA 02/24/21 1,290 190 94.2 75.4 31.7 3.21 57.9 J NA NA NA NA 09/24/21 814 73.2 114 178.9 5.42 J ND ND NA NA NA NA 04/13/22 26.5 ND ND 11.4 ND ND 2.05 J NA NA NA NA 10/25/18 ND ND ND ND ND ND ND ND ND 44.9 J 7.5305/06/19 ND ND ND 0.466 J ND ND 1.33 J ND ND 44.9 J 7.5301/07/20 ND ND ND ND ND ND ND NA NA NA NA 08/13/20 ND ND ND ND ND ND ND NA NA NA NA02/24/21 ND ND ND ND ND ND ND NA NA NA NA09/24/21 ND ND ND ND ND ND ND NA NA NA NA 04/13/22 ND ND ND ND ND ND ND NA NA NA NA MW-9 Well did not exist Well did not exist Well did not exist Well did not exist MW-6 MW-8 MW-7 MW-6D Well did not exist 5,000 84,500 260,000 85,500 20,000 70,000 6,000 15,000 1 600 600 500 20 70 6 400 200 700 15 Well Number Sample Date Benzene Ethyl Benzene Toluene Xylenes Methyl tert- Butyl ether (MTBE) Diisopropyl Ether (DIPE)Naphthalene C5-C8 Aliphatics C9-C22 Aromatics C9-C18 Aliphatics Lead NCGQS TABLE 5.1 SUMMARY OF CHEMICAL CONSTITUENTS DETECTED IN GROUNDWATER SPEEDWAY 8299 CLAYTON, NORTH CAROLINA MID-ATLANTIC PROJECT NO. 000R2826.15 GCL Not Established 10/25/18 4,710 462 6,630 3,050 45.4 20 92.0 J 22,800 794 3,680 ND 05/06/19 933 93.2 992 705 ND ND ND NA NA NA NA 01/07/20 1,300 158 958 727 ND 4.19 34.9 NA NA NA NA 08/13/20 945 112 1,030 739 ND ND 33.7 J NA NA NA NA 02/24/21 618 25.5 237 311 ND ND NDa NA NA NA NA 09/24/21 1,370 159 757 952 ND ND ND NA NA NA NA 04/13/22 1,150 140 651 585 ND 2.25 J 32.3 J NA NA NA NA 01/07/20 19,700 2,800 36,800 14,380 4,890 ND 1090 J 171,000 ND 56,900 8.18 08/13/20 14,900 2,590 33,300 13,120 2,370 ND ND NA NA NA NA 02/24/21 FP FP FP FP FP FP FP NA NA NA NA09/24/21 FP FP FP FP FP FP FP NA NA NA NA04/13/22 FP FP FP FP FP FP FP NA NA NA NA 01/07/20 15,500 2,780 32,200 14,840 ND ND 625 137,000 8,430 44,400 6.61 08/13/20 16,000 2,590 33,100 13,040 ND ND ND NA NA NA NA 02/24/21 12,900 2,830 31,700 15,220 NDa 30.1 J 328 J NA NA NA NA09/24/21 FP FP FP FP FP FP FP NA NA NA NA 04/13/22 FP FP FP FP FP FP FP NA NA NA NA 02/24/21 11,700 2,440 28,400 12,990 NDa ND NDa NA NA NA NA 09/24/21 FP FP FP FP FP FP FP NA NA NA NA04/13/22 5,320 2,430 16,400 13,170 NDa NDa NDa NA NA NA NA 02/24/21 928 447 1,460 2,179 1.68 2.55 79.9 J NA NA NA NA 09/24/21 2,110 1,300 3,220 4,570 ND ND 155 J NA NA NA NA 04/13/22 1,170 588 981 1,772 ND ND 126 J NA NA NA NA Well did not exist MW-10 Well did not exist MW-12 MW-11 Well did not exist Well Installed January 26, 2021 Well Installed January 26, 2021 MW-14 MW-13 5,000 84,500 260,000 85,500 20,000 70,000 6,000 15,000 1 600 600 500 20 70 6 400 200 700 15 Well Number Sample Date Benzene Ethyl Benzene Toluene Xylenes Methyl tert- Butyl ether (MTBE) Diisopropyl Ether (DIPE)Naphthalene C5-C8 Aliphatics C9-C22 Aromatics C9-C18 Aliphatics Lead NCGQS TABLE 5.1 SUMMARY OF CHEMICAL CONSTITUENTS DETECTED IN GROUNDWATER SPEEDWAY 8299 CLAYTON, NORTH CAROLINA MID-ATLANTIC PROJECT NO. 000R2826.15 GCL Not Established 02/24/21 ND ND ND ND ND ND ND NA NA NA NA09/24/21 0.488 J ND ND ND ND ND ND NA NA NA NA04/13/22 ND ND ND ND 0.113 J ND ND NA NA NA NA 04/13/22 ND ND ND ND ND ND ND NA NA NA NA Notes: ND - Not detected at or above laboratory's practical quantitation limit * C9-C12 Aliphatics (VPH) onlyNDa - detection limit exceeds NCGQS ** C9-C10 Aromatics (VPH) onlyNA - Not Analyzed for this parameterAll concentrations reported in ug/L - micrograms per literBold values exceed NC Groundwater Quality Standards (NCGQS)Shaded values exceed GCLJ- Estimated ValueValues for naphthalene are reported as Method 6200B/625Note: This table summarizes historical results for selected compounds. Additional compounds may have been detected. Refer to laboratory reports for additional information. Well Installed February 24, 2022MW-16 MW-15 Well Installed January 26, 2021 APPENDIX A SELECTED HISTORICAL SITE INFORMATION JIE JIE JIE JIE JIE JIE JIE JIE JIE JIE JIE APPENDIX B WELL CONSTRUCTION RECORDS WELL CONSTRUCTION RECORD (GW-1)For Internal Use Only: Form GW-1 North Carolina Department of Environmental Quality - Division of Water Resources Revised 6-6-2018 1. Well Contractor Information: Well Contractor Name NC Well Contractor Certification Number Company Name 2. Well Construction Permit #: List all applicable well construction permits (i.e. UIC, County, State, Variance, etc.) 3. Well Use (check well use): Water Supply Well: Agricultural Municipal/Public Geothermal (Heating/Cooling Supply)Residential Water Supply (single) Industrial/Commercial Residential Water Supply (shared) Irrigation Wells > 100,000 GPD Non-Water Supply Well: Monitoring Recovery Injection Well: Aquifer Recharge Groundwater Remediation Aquifer Storage and Recovery Salinity Barrier Aquifer Test Stormwater Drainage Experimental Technology Subsidence Control Geothermal (Closed Loop)Tracer Geothermal (Heating/Cooling Return) Other (explain under #21 Remarks) 4. Date Well(s) Completed: Well ID# 5a. Well Location: Facility/Owner Name Facility ID# (if applicable) Physical Address, City, and Zip County Parcel Identification No. (PIN) 5b. Latitude and longitude in degrees/minutes/seconds or decimal degrees: (if well field, one lat/long is sufficient) N W 6. Is(are) the well(s): Permanent or Temporary 7. Is this a repair to an existing well: Yes or No If this is a repair, fill out known well construction information and explain the nature of the repair under #21 remarks section or on the back of this form. 8. For Geoprobe/DPT or Closed-Loop Geothermal Wells having the same construction, only 1 GW-1 is needed. Indicate TOTAL NUMBER of wells drilled: 9. Total well depth below land surface:(ft.) For multiple wells list all depths if different (example- 3@200’ and 2@100 ) 10. Static water level below top of casing:(ft.) If water level is above casing, use “+” 11. Borehole diameter: (in.) 12. Well construction method: (i.e. auger, rotary, cable, direct push, etc.) FOR WATER SUPPLY WELLS ONLY: 13a. Yield (gpm) Method of test: 13b. Disinfection type: Amount: 14. WATER ZONES FROM TO DESCRIPTION ft.ft. ft.ft. 15. OUTER CASING (for multi-cased wells) OR LINER (if applicable) FROM TO DIAMETER THICKNESS MATERIAL ft.ft.in. 16. INNER CASING OR TUBING (geothermal closed-loop) FROM TO DIAMETER THICKNESS MATERIAL ft.ft.in. ft.ft.in. 17. SCREEN FROM TO DIAMETER SLOT SIZE THICKNESS MATERIAL ft.ft.in. ft.ft.in. 18. GROUT FROM TO MATERIAL EMPLACEMENT METHOD & AMOUNT ft.ft. ft.ft. ft.ft. 19. SAND/GRAVEL PACK (if applicable) FROM TO MATERIAL EMPLACEMENT METHOD ft.ft. ft.ft. 20. DRILLING LOG (attach additional sheets if necessary) FROM TO DESCRIPTION (color, hardness, soil/rock type, grain size, etc.) ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. 21. REMARKS 22. Certification: Signature of Certified Well Contractor Date By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with 15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy of this record has been provided to the well owner. Site diagram or additional well details: You may use the back of this page to provide additional SUBMITTAL INSTRUCTIONS Submit this GW-1 within 30 days of well completion per the following: 24a. For All Wells:Original form to Division of Water Resources (DWR), Information Processing Unit, 1617 MSC, Raleigh, NC 27699-1617 24b. For Injection Wells:Copy to DWR, Underground Injection Control (IUC) Program, 1636 MSC, Raleigh, NC 27699-1636 24c. For Water Supply and Open-Loop Geothermal Return Wells: Copy to the county environmental health department of the county where installed 24d. For Water Wells producing over 100,000 GPD: Copy to DWR, CCPCUAPermit Program, 1611 MSC, Raleigh, NC 27699-1611 NICHOLAS HAYES A - 4121 GEOLOGIC EXPLORATION 0.0 SCH 40 10.0 20.0 .010 0.0 PORTLAND BENTONITE 8.0 20-40 0.0 RED SANDY CLAY 02/24/22 MW-16 SPEEDWAY - 8299 291 NC HIGHWAY 42 CLAYTON 27527 JOHNSTON BENTONITE SEAL ~ 5.0 - 8.0 FEET 35° 38' 22.88" 78° 26' 24.59"02/25/22 20.0 14.0 8.0 AUGER PVC SCH 40 PVC 2.0 2.0 5.0 20.0 20.0 FINE SILICA SAND SLURRY Depth to Water (ft):ft -bgsBlow Counts TVA (ppm)Recovery (ft.)*Boring advanced with geoprobe direct push technology and macrocore sampling. Boringterminated at 20 feet BLS. GEX switched to 4 1/4-inch inner diameter hollow-stem augers to install well to 20 feet BLS in - indicates inches N/A - indicates not applicable to this boringft - indicates depth in feet ppm - indicates parts per millionft BLS - indicates feet below land surface DPT - Direct Push Technology 1125 E. Morehead Street Suite 104 Charlotte, NC 28204 Ph: (980) 585-1271 LOG OF BORING: MW-16 Page:1 of 1 Top of Casing Elev. (ft):100.56 Project Number:R2826.15 Sampling Method:Macrocore Total Well Depth (ft):20 Site Name: Speedway 8299 Drilling/Boring Method: 4 1/4" ID Hollow-Stem Auger and DPT Total Boring Depth (ft):20 Date Started:2/24/2022 Driller :Bubba Hayes Date Completed:2/24/2022 Monitoring Equipment:TVA Location: Clayton, N.C.Subcontractor/Drillers: Geologic Exploration (GEX) 2 2 4 4 Geologist/Engineer:Gary Fischer SOIL DESCRIPTION (color, texture, moisture, etc.)Construction Deatails ft-BLSNone Full RecoveryFlushmount Cover 12 12 14 14 Full Recovery8 8 10 10 Full RecoveryFull Recovery6 6 Tan and light purple, fine sandy silt, minor clay20 20 0.4 16 16 18 18 0.5 22 22 24 24 28 28 26 26 Grout 1'-5' Bentonite 5'-8'0.2 0.4 0.6 0.9 COMMENTS: TVA - toxic vapor analyzer NM Sand 8'-20' Light brown, sandy silt, minor clay Dark red and light brown, silty clay, minor sand Light gray and reddish purple, fine sandy clay Reddish orange, fine sandy silt, minor clay Off-white and reddish purple, fine sandy clay 30 30 APPENDIX C MID-ATLANTIC FIELD PROCEDURES Groundwater Sampling Procedures I. Sample Collection A. Monitoring Wells Prior to sample collection, each well is purged of three to five standing well volumes or to dryness to remove stagnant water from the well and well bore in an effort to collect samples that are representative of the water quality in the formation surrounding each well. Purging is performed either with a new, polyethylene bailer dedicated to each well, or with a decontaminated pump. Samples are retrieved from the monitoring well using the dedicated bailer. New nylon string is used on each dedicated bailer, and new nitrile sampling gloves are donned prior to purging and sampling of each well. B. Geoprobe “Screen Point Sampler” The screen point sampler is a “grab” sampling device that is driven into the saturated zone and a surrounding metal sheath is retracted, exposing a screen. Groundwater entering the screen is then drawn to land surface through disposable tubing that is placed through the hollow push rods. The sample is collected from the tubing into the appropriate sampling glassware. C. Water-Supply Wells Water samples are typically collected from the available spigot that is nearest to the well. The water is allowed to run at a high flow from the spigot for approximately 10 to 15 minutes to allow the water in the delivery lines to be purged. The sample flow is then reduced and the samples are collected directly into pre-labeled containers as described below. New nitrile sampling gloves are donned prior to sampling of each well. D. Treatment System Influent/Effluent Samples are typically collected from the influent or effluent of pump-and-treat groundwater remediation systems using designated sampling ports in the influent and effluent water transport lines. The water is typically allowed to run for several seconds to clear potential debris in the sampling port. The sample is then collected directly into sampling containers as described below. New nitrile sampling gloves are donned prior to sample collection. II. Preparation for Laboratory Analysis Groundwater samples are decanted directly into laboratory-prepared, pre-labeled, sampling containers, packed in ice, and shipped to a certified laboratory under chain-of-custody control. Laboratory analyses performed on the samples are specified on the chain-of-custody. Groundwater Flow Direction Determination Procedure I. Well Casing Rim Elevation Determination After well completion, a measuring point is marked on the rim of each well casing by field personnel. A survey level and stadia rod is used to determine the vertical elevation of the measuring point relative to a designated site benchmark. The elevations are determined to the nearest 0.01 foot. II. Depth-to-Groundwater Measurements Prior to collecting depth-to-water measurements, the field technician opens the locking well plugs and allows the water table to “stabilize” within the well. The technician then uses an electronic water level indicator (or oil/water interface probe, if free product is present) to measure the depth-to-water from the measuring point on the casing rim to the nearest 0.01 foot. The measured depths-to-water are then subtracted from the casing elevations to determine water level elevations relative to the benchmark. III. Horizontal Flow Direction Determination Horizontal groundwater flow direction in the surficial aquifer is determined by development of a water table contour map based upon water table elevation data obtained from site monitoring wells. The water levels measured in deep, Type III monitoring wells are not used in constructing the water table map. Mid-Atlantic uses Golden Software’s “Surfer” version 7.0 to generate the contours using the Kriging method. Alternatively, the water-table contour map may be hand drawn by Mid-Atlantic staff and then digitized by AutoCAD software. Groundwater flow direction is determined by interpreting the contours. Groundwater will flow in the direction from higher elevation to lower elevation (perpendicular to the generated contours). IV. Vertical Flow Direction Determination Groundwater exhibits both horizontal and vertical components of flow through an aquifer. The hydraulic gradient is the difference in hydraulic head divided by the distance along the flow path. The vertical gradient may be either up or down within the aquifer. The vertical gradient is calculated using measurements obtained from a “paired” shallow monitoring well and a deep, Type III monitoring well. The gradient is calculated by first determining the difference in the static water level elevations at the well pair. Second, the relative elevation of the middle of the screened interval is determined for each well pair. Finally, the difference in the static water level elevations at each well pair is divided by the difference in the mid-screen elevations for the well pair. This value is arbitrarily assigned a positive value if the groundwater is moving vertically downward (recharge area) and a negative value if the groundwater is moving vertically upward (discharge area). Groundwater will flow in the direction from higher elevation to lower elevation. Hydraulic Gradient Determination Procedure The hydraulic gradient, which is a measure of the “steepness” of the water table, is determined by dividing the change in the elevation (in feet) of the water table over the change in horizontal distance (in feet) between two measuring points. Typically, the gradient is determined after the Water Table Elevation Contour Map is prepared. Two wells are typically selected that, when a line is drawn between the wells, the orientation of this line approximates the direction of groundwater flow. The greater the horizontal distance between the lines, the more representative the hydraulic gradient value will be for the site. If two wells are not arranged in line with groundwater flow, the hydraulic gradient can be estimated by performing the same calculation using the contours generated for the groundwater flow direction map. The units for the hydraulic gradient are feet/feet. The hydraulic gradient (measured from MW-8 to MW-2 on April 13, 2022) for the subject site was determined as follows: Gradient = dh/dl = (86.83 – 85.70) / 55 = 0.020 ft/ft where: dh = change in head (more specifically, water table elevation) in feet dl = horizontal distance (in feet) between monitoring wells or other head measurement points. APPENDIX D LABORATORY ANALYTICAL REPORTS AND CHAIN- OF-CUSTODY RECORDS ANALYTICAL REPORT April 21, 2022 Mid-Atlantic - Speedway NC Sample Delivery Group:L1482562 Samples Received:04/14/2022 Project Number:R2826.15 (A) Description:Speedway 8299 Site:8299 Report To:Mr. Trey Marchant 409 Rogers View Court Raleigh, NC 27610 Entire Report Reviewed By: April 21, 2022 [Preliminary Report] T. Alan Harvill 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: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 1 of 47 April 22, 2022 T. Alan Harvill Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 1 of 47 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 TRIP BLANK L1482562-01 6 MW-2 L1482562-02 8 MW-4 L1482562-03 10 MW-6D L1482562-04 12 MW-7 L1482562-05 14 MW-8 L1482562-06 16 MW-9 L1482562-07 18 MW-10 L1482562-08 20 MW-13 L1482562-09 22 MW-14 L1482562-10 24 MW-15 L1482562-11 26 MW-16 L1482562-12 28 Qc: Quality Control Summary 30 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 30 Gl: Glossary of Terms 44 Al: Accreditations & Locations 45 Sc: Sample Chain of Custody 46 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 2 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 2 of 47 SAMPLE SUMMARY Collected by Collected date/time Received date/time TRIP BLANK L1482562-01 GW Gary A. Fischer 04/13/22 00:00 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1849538 1 04/18/22 10:56 04/18/22 10:56 BMB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-2 L1482562-02 GW Gary A. Fischer 04/13/22 11:45 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1849538 500 04/18/22 15:24 04/18/22 15:24 BMB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-4 L1482562-03 GW Gary A. Fischer 04/13/22 07:50 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1849538 1 04/18/22 14:01 04/18/22 14:01 BMB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-6D L1482562-04 GW Gary A. Fischer 04/13/22 10:35 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1849538 1 04/18/22 14:21 04/18/22 14:21 BMB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-7 L1482562-05 GW Gary A. Fischer 04/13/22 06:20 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850548 50 04/19/22 13:05 04/19/22 13:05 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850998 50 04/20/22 14:43 04/20/22 14:43 DWR Mt. Juliet, TN Collected by Collected date/time Received date/time MW-8 L1482562-06 GW Gary A. Fischer 04/13/22 07:20 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850548 1 04/19/22 12:27 04/19/22 12:27 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850998 1 04/20/22 14:21 04/20/22 14:21 DWR Mt. Juliet, TN Collected by Collected date/time Received date/time MW-9 L1482562-07 GW Gary A. Fischer 04/13/22 08:25 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1849538 1 04/18/22 14:42 04/18/22 14:42 BMB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-10 L1482562-08 GW Gary A. Fischer 04/13/22 09:00 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850548 20 04/19/22 13:24 04/19/22 13:24 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850998 20 04/20/22 15:04 04/20/22 15:04 DWR Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 3 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 3 of 47 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-13 L1482562-09 GW Gary A. Fischer 04/13/22 06:50 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1849538 1000 04/18/22 18:47 04/18/22 18:47 BMB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-14 L1482562-10 GW Gary A. Fischer 04/13/22 11:05 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850548 50 04/19/22 13:43 04/19/22 13:43 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850998 50 04/20/22 15:26 04/20/22 15:26 DWR Mt. Juliet, TN Collected by Collected date/time Received date/time MW-15 L1482562-11 GW Gary A. Fischer 04/13/22 12:20 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850232 1 04/18/22 14:38 04/18/22 14:38 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850895 1 04/21/22 01:01 04/21/22 01:01 BMB Mt. Juliet, TN Collected by Collected date/time Received date/time MW-16 L1482562-12 GW Gary A. Fischer 04/13/22 09:40 04/14/22 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850232 1 04/18/22 14:57 04/18/22 14:57 DWR Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG1850895 1 04/21/22 01:22 04/21/22 01:22 BMB Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 4 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 4 of 47 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] T. Alan Harvill Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 5 of 47 T. Alan Harvill Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 5 of 47 SAMPLE RESULTS - 01 L1482562 TRIP BLANK Collected date/time: 04/13/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 04/18/2022 10:56 WG1849538 1,1,1-Trichloroethane U 0.149 1.00 1 04/18/2022 10:56 WG1849538 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 04/18/2022 10:56 WG1849538 1,1,2-Trichloroethane U 0.158 1.00 1 04/18/2022 10:56 WG1849538 1,1-Dichloroethane U 0.100 1.00 1 04/18/2022 10:56 WG1849538 1,1-Dichloroethene U 0.188 1.00 1 04/18/2022 10:56 WG1849538 1,1-Dichloropropene U 0.142 1.00 1 04/18/2022 10:56 WG1849538 1,2,3-Trichlorobenzene U 0.230 1.00 1 04/18/2022 10:56 WG1849538 1,2,3-Trichloropropane U 0.237 2.50 1 04/18/2022 10:56 WG1849538 1,2,4-Trichlorobenzene U 0.481 1.00 1 04/18/2022 10:56 WG1849538 1,2,4-Trimethylbenzene U 0.322 1.00 1 04/18/2022 10:56 WG1849538 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 04/18/2022 10:56 WG1849538 1,2-Dibromoethane U 0.126 1.00 1 04/18/2022 10:56 WG1849538 1,2-Dichlorobenzene U 0.107 1.00 1 04/18/2022 10:56 WG1849538 1,2-Dichloroethane U 0.0819 1.00 1 04/18/2022 10:56 WG1849538 1,2-Dichloropropane U 0.149 1.00 1 04/18/2022 10:56 WG1849538 1,3,5-Trimethylbenzene U 0.104 1.00 1 04/18/2022 10:56 WG1849538 1,3-Dichlorobenzene U 0.110 1.00 1 04/18/2022 10:56 WG1849538 1,3-Dichloropropane U 0.110 1.00 1 04/18/2022 10:56 WG1849538 1,4-Dichlorobenzene U 0.120 1.00 1 04/18/2022 10:56 WG1849538 2,2-Dichloropropane U 0.161 1.00 1 04/18/2022 10:56 WG1849538 2-Butanone (MEK)U 1.19 10.0 1 04/18/2022 10:56 WG1849538 2-Chlorotoluene U 0.106 1.00 1 04/18/2022 10:56 WG1849538 4-Chlorotoluene U 0.114 1.00 1 04/18/2022 10:56 WG1849538 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 04/18/2022 10:56 WG1849538 Acetone U 11.3 50.0 1 04/18/2022 10:56 WG1849538 Acrolein U C4 2.54 50.0 1 04/18/2022 10:56 WG1849538 Acrylonitrile U 0.671 10.0 1 04/18/2022 10:56 WG1849538 Benzene U 0.0941 1.00 1 04/18/2022 10:56 WG1849538 Bromobenzene U 0.118 1.00 1 04/18/2022 10:56 WG1849538 Bromodichloromethane U 0.136 1.00 1 04/18/2022 10:56 WG1849538 Bromoform U 0.129 1.00 1 04/18/2022 10:56 WG1849538 Bromomethane U 0.605 5.00 1 04/18/2022 10:56 WG1849538 Carbon tetrachloride U 0.128 1.00 1 04/18/2022 10:56 WG1849538 Chlorobenzene U 0.116 1.00 1 04/18/2022 10:56 WG1849538 Chlorodibromomethane U J4 0.140 1.00 1 04/18/2022 10:56 WG1849538 Chloroethane U 0.192 5.00 1 04/18/2022 10:56 WG1849538 Chloroform U 0.111 5.00 1 04/18/2022 10:56 WG1849538 Chloromethane U 0.960 2.50 1 04/18/2022 10:56 WG1849538 Dichlorodifluoromethane U 0.374 5.00 1 04/18/2022 10:56 WG1849538 Ethanol U 42.0 100 1 04/18/2022 10:56 WG1849538 Ethyl tert-butyl ether U 0.101 1.00 1 04/18/2022 10:56 WG1849538 Ethylbenzene U 0.137 1.00 1 04/18/2022 10:56 WG1849538 Hexachloro-1,3-butadiene U 0.337 1.00 1 04/18/2022 10:56 WG1849538 Di-isopropyl ether U 0.105 1.00 1 04/18/2022 10:56 WG1849538 Isopropylbenzene U 0.105 1.00 1 04/18/2022 10:56 WG1849538 Methyl tert-butyl ether U 0.101 1.00 1 04/18/2022 10:56 WG1849538 Methylene Chloride U 0.430 5.00 1 04/18/2022 10:56 WG1849538 Naphthalene U 1.00 5.00 1 04/18/2022 10:56 WG1849538 Styrene U 0.118 1.00 1 04/18/2022 10:56 WG1849538 Tetrachloroethene U 0.300 1.00 1 04/18/2022 10:56 WG1849538 Toluene U 0.278 1.00 1 04/18/2022 10:56 WG1849538 Trichloroethene U J4 0.190 1.00 1 04/18/2022 10:56 WG1849538 Trichlorofluoromethane U 0.160 5.00 1 04/18/2022 10:56 WG1849538 Vinyl chloride U 0.234 1.00 1 04/18/2022 10:56 WG1849538 cis-1,2-Dichloroethene U 0.126 1.00 1 04/18/2022 10:56 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 6 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 6 of 47 SAMPLE RESULTS - 01 L1482562 TRIP BLANK Collected date/time: 04/13/22 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes U 0.430 2.00 1 04/18/2022 10:56 WG1849538 n-Butylbenzene U 0.157 1.00 1 04/18/2022 10:56 WG1849538 n-Propylbenzene U 0.0993 1.00 1 04/18/2022 10:56 WG1849538 o-Xylene U 0.174 1.00 1 04/18/2022 10:56 WG1849538 p-Isopropyltoluene U 0.120 1.00 1 04/18/2022 10:56 WG1849538 sec-Butylbenzene U 0.125 1.00 1 04/18/2022 10:56 WG1849538 tert-Butyl alcohol U 4.06 5.00 1 04/18/2022 10:56 WG1849538 tert-Butyl Formate U 4.51 20.0 1 04/18/2022 10:56 WG1849538 tert-Butylbenzene U 0.127 1.00 1 04/18/2022 10:56 WG1849538 trans-1,2-Dichloroethene U 0.149 1.00 1 04/18/2022 10:56 WG1849538 (S) Toluene-d8 110 80.0-120 04/18/2022 10:56 WG1849538 (S) 4-Bromofluorobenzene 106 77.0-126 04/18/2022 10:56 WG1849538 (S) 1,2-Dichloroethane-d4 87.3 70.0-130 04/18/2022 10:56 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 7 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 7 of 47 SAMPLE RESULTS - 02 L1482562 MW-2 Collected date/time: 04/13/22 11:45 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 73.5 500 500 04/18/2022 15:24 WG1849538 1,1,1-Trichloroethane U 74.5 500 500 04/18/2022 15:24 WG1849538 1,1,2,2-Tetrachloroethane U 66.5 500 500 04/18/2022 15:24 WG1849538 1,1,2-Trichloroethane U 79.0 500 500 04/18/2022 15:24 WG1849538 1,1-Dichloroethane U 50.0 500 500 04/18/2022 15:24 WG1849538 1,1-Dichloroethene U 94.0 500 500 04/18/2022 15:24 WG1849538 1,1-Dichloropropene U 71.0 500 500 04/18/2022 15:24 WG1849538 1,2,3-Trichlorobenzene U 115 500 500 04/18/2022 15:24 WG1849538 1,2,3-Trichloropropane U 119 1250 500 04/18/2022 15:24 WG1849538 1,2,4-Trichlorobenzene U 241 500 500 04/18/2022 15:24 WG1849538 1,2,4-Trimethylbenzene 589 161 500 500 04/18/2022 15:24 WG1849538 1,2-Dibromo-3-Chloropropane U 138 2500 500 04/18/2022 15:24 WG1849538 1,2-Dibromoethane U 63.0 500 500 04/18/2022 15:24 WG1849538 1,2-Dichlorobenzene U 53.5 500 500 04/18/2022 15:24 WG1849538 1,2-Dichloroethane U 40.9 500 500 04/18/2022 15:24 WG1849538 1,2-Dichloropropane U 74.5 500 500 04/18/2022 15:24 WG1849538 1,3,5-Trimethylbenzene 146 J 52.0 500 500 04/18/2022 15:24 WG1849538 1,3-Dichlorobenzene U 55.0 500 500 04/18/2022 15:24 WG1849538 1,3-Dichloropropane U 55.0 500 500 04/18/2022 15:24 WG1849538 1,4-Dichlorobenzene U 60.0 500 500 04/18/2022 15:24 WG1849538 2,2-Dichloropropane U 80.5 500 500 04/18/2022 15:24 WG1849538 2-Butanone (MEK)U 595 5000 500 04/18/2022 15:24 WG1849538 2-Chlorotoluene U 53.0 500 500 04/18/2022 15:24 WG1849538 4-Chlorotoluene U 57.0 500 500 04/18/2022 15:24 WG1849538 4-Methyl-2-pentanone (MIBK) U 239 5000 500 04/18/2022 15:24 WG1849538 Acetone U 5650 25000 500 04/18/2022 15:24 WG1849538 Acrolein U C4 1270 25000 500 04/18/2022 15:24 WG1849538 Acrylonitrile U 336 5000 500 04/18/2022 15:24 WG1849538 Benzene 4020 47.1 500 500 04/18/2022 15:24 WG1849538 Bromobenzene U 59.0 500 500 04/18/2022 15:24 WG1849538 Bromodichloromethane U 68.0 500 500 04/18/2022 15:24 WG1849538 Bromoform U 64.5 500 500 04/18/2022 15:24 WG1849538 Bromomethane U 303 2500 500 04/18/2022 15:24 WG1849538 Carbon tetrachloride U 64.0 500 500 04/18/2022 15:24 WG1849538 Chlorobenzene U 58.0 500 500 04/18/2022 15:24 WG1849538 Chlorodibromomethane U J4 70.0 500 500 04/18/2022 15:24 WG1849538 Chloroethane U 96.0 2500 500 04/18/2022 15:24 WG1849538 Chloroform U 55.5 2500 500 04/18/2022 15:24 WG1849538 Chloromethane U 480 1250 500 04/18/2022 15:24 WG1849538 Dichlorodifluoromethane U 187 2500 500 04/18/2022 15:24 WG1849538 Ethanol U 21000 50000 500 04/18/2022 15:24 WG1849538 Ethyl tert-butyl ether U 50.5 500 500 04/18/2022 15:24 WG1849538 Ethylbenzene 1390 68.5 500 500 04/18/2022 15:24 WG1849538 Hexachloro-1,3-butadiene U 169 500 500 04/18/2022 15:24 WG1849538 Di-isopropyl ether U 52.5 500 500 04/18/2022 15:24 WG1849538 Isopropylbenzene 55.0 J 52.5 500 500 04/18/2022 15:24 WG1849538 Methyl tert-butyl ether U 50.5 500 500 04/18/2022 15:24 WG1849538 Methylene Chloride U 215 2500 500 04/18/2022 15:24 WG1849538 Naphthalene 588 J 500 2500 500 04/18/2022 15:24 WG1849538 Styrene U 59.0 500 500 04/18/2022 15:24 WG1849538 Tetrachloroethene U 150 500 500 04/18/2022 15:24 WG1849538 Toluene 6320 139 500 500 04/18/2022 15:24 WG1849538 Trichloroethene U J4 95.0 500 500 04/18/2022 15:24 WG1849538 Trichlorofluoromethane U 80.0 2500 500 04/18/2022 15:24 WG1849538 Vinyl chloride U 117 500 500 04/18/2022 15:24 WG1849538 cis-1,2-Dichloroethene U 63.0 500 500 04/18/2022 15:24 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 8 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 8 of 47 SAMPLE RESULTS - 02 L1482562 MW-2 Collected date/time: 04/13/22 11:45 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes 2470 215 1000 500 04/18/2022 15:24 WG1849538 n-Butylbenzene U 78.5 500 500 04/18/2022 15:24 WG1849538 n-Propylbenzene 130 J 49.7 500 500 04/18/2022 15:24 WG1849538 o-Xylene 1280 87.0 500 500 04/18/2022 15:24 WG1849538 p-Isopropyltoluene U 60.0 500 500 04/18/2022 15:24 WG1849538 sec-Butylbenzene U 62.5 500 500 04/18/2022 15:24 WG1849538 tert-Butyl alcohol U 2030 2500 500 04/18/2022 15:24 WG1849538 tert-Butyl Formate U 2260 10000 500 04/18/2022 15:24 WG1849538 tert-Butylbenzene U 63.5 500 500 04/18/2022 15:24 WG1849538 trans-1,2-Dichloroethene U 74.5 500 500 04/18/2022 15:24 WG1849538 (S) Toluene-d8 108 80.0-120 04/18/2022 15:24 WG1849538 (S) 4-Bromofluorobenzene 108 77.0-126 04/18/2022 15:24 WG1849538 (S) 1,2-Dichloroethane-d4 88.4 70.0-130 04/18/2022 15:24 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 9 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 9 of 47 SAMPLE RESULTS - 03 L1482562 MW-4 Collected date/time: 04/13/22 07:50 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 04/18/2022 14:01 WG1849538 1,1,1-Trichloroethane U 0.149 1.00 1 04/18/2022 14:01 WG1849538 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 04/18/2022 14:01 WG1849538 1,1,2-Trichloroethane U 0.158 1.00 1 04/18/2022 14:01 WG1849538 1,1-Dichloroethane U 0.100 1.00 1 04/18/2022 14:01 WG1849538 1,1-Dichloroethene U 0.188 1.00 1 04/18/2022 14:01 WG1849538 1,1-Dichloropropene U 0.142 1.00 1 04/18/2022 14:01 WG1849538 1,2,3-Trichlorobenzene U 0.230 1.00 1 04/18/2022 14:01 WG1849538 1,2,3-Trichloropropane U 0.237 2.50 1 04/18/2022 14:01 WG1849538 1,2,4-Trichlorobenzene U 0.481 1.00 1 04/18/2022 14:01 WG1849538 1,2,4-Trimethylbenzene U 0.322 1.00 1 04/18/2022 14:01 WG1849538 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 04/18/2022 14:01 WG1849538 1,2-Dibromoethane U 0.126 1.00 1 04/18/2022 14:01 WG1849538 1,2-Dichlorobenzene U 0.107 1.00 1 04/18/2022 14:01 WG1849538 1,2-Dichloroethane U 0.0819 1.00 1 04/18/2022 14:01 WG1849538 1,2-Dichloropropane U 0.149 1.00 1 04/18/2022 14:01 WG1849538 1,3,5-Trimethylbenzene U 0.104 1.00 1 04/18/2022 14:01 WG1849538 1,3-Dichlorobenzene U 0.110 1.00 1 04/18/2022 14:01 WG1849538 1,3-Dichloropropane U 0.110 1.00 1 04/18/2022 14:01 WG1849538 1,4-Dichlorobenzene U 0.120 1.00 1 04/18/2022 14:01 WG1849538 2,2-Dichloropropane U 0.161 1.00 1 04/18/2022 14:01 WG1849538 2-Butanone (MEK)U 1.19 10.0 1 04/18/2022 14:01 WG1849538 2-Chlorotoluene U 0.106 1.00 1 04/18/2022 14:01 WG1849538 4-Chlorotoluene U 0.114 1.00 1 04/18/2022 14:01 WG1849538 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 04/18/2022 14:01 WG1849538 Acetone U 11.3 50.0 1 04/18/2022 14:01 WG1849538 Acrolein U C4 2.54 50.0 1 04/18/2022 14:01 WG1849538 Acrylonitrile U 0.671 10.0 1 04/18/2022 14:01 WG1849538 Benzene U 0.0941 1.00 1 04/18/2022 14:01 WG1849538 Bromobenzene U 0.118 1.00 1 04/18/2022 14:01 WG1849538 Bromodichloromethane U 0.136 1.00 1 04/18/2022 14:01 WG1849538 Bromoform U 0.129 1.00 1 04/18/2022 14:01 WG1849538 Bromomethane U 0.605 5.00 1 04/18/2022 14:01 WG1849538 Carbon tetrachloride U 0.128 1.00 1 04/18/2022 14:01 WG1849538 Chlorobenzene U 0.116 1.00 1 04/18/2022 14:01 WG1849538 Chlorodibromomethane U J4 0.140 1.00 1 04/18/2022 14:01 WG1849538 Chloroethane U 0.192 5.00 1 04/18/2022 14:01 WG1849538 Chloroform 1.22 J 0.111 5.00 1 04/18/2022 14:01 WG1849538 Chloromethane U 0.960 2.50 1 04/18/2022 14:01 WG1849538 Dichlorodifluoromethane U 0.374 5.00 1 04/18/2022 14:01 WG1849538 Ethanol U 42.0 100 1 04/18/2022 14:01 WG1849538 Ethyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:01 WG1849538 Ethylbenzene U 0.137 1.00 1 04/18/2022 14:01 WG1849538 Hexachloro-1,3-butadiene U 0.337 1.00 1 04/18/2022 14:01 WG1849538 Di-isopropyl ether U 0.105 1.00 1 04/18/2022 14:01 WG1849538 Isopropylbenzene U 0.105 1.00 1 04/18/2022 14:01 WG1849538 Methyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:01 WG1849538 Methylene Chloride U 0.430 5.00 1 04/18/2022 14:01 WG1849538 Naphthalene U 1.00 5.00 1 04/18/2022 14:01 WG1849538 Styrene U 0.118 1.00 1 04/18/2022 14:01 WG1849538 Tetrachloroethene U 0.300 1.00 1 04/18/2022 14:01 WG1849538 Toluene U 0.278 1.00 1 04/18/2022 14:01 WG1849538 Trichloroethene U J4 0.190 1.00 1 04/18/2022 14:01 WG1849538 Trichlorofluoromethane U 0.160 5.00 1 04/18/2022 14:01 WG1849538 Vinyl chloride U 0.234 1.00 1 04/18/2022 14:01 WG1849538 cis-1,2-Dichloroethene U 0.126 1.00 1 04/18/2022 14:01 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 10 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 10 of 47 SAMPLE RESULTS - 03 L1482562 MW-4 Collected date/time: 04/13/22 07:50 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes U 0.430 2.00 1 04/18/2022 14:01 WG1849538 n-Butylbenzene U 0.157 1.00 1 04/18/2022 14:01 WG1849538 n-Propylbenzene U 0.0993 1.00 1 04/18/2022 14:01 WG1849538 o-Xylene U 0.174 1.00 1 04/18/2022 14:01 WG1849538 p-Isopropyltoluene U 0.120 1.00 1 04/18/2022 14:01 WG1849538 sec-Butylbenzene U 0.125 1.00 1 04/18/2022 14:01 WG1849538 tert-Butyl alcohol U 4.06 5.00 1 04/18/2022 14:01 WG1849538 tert-Butyl Formate U 4.51 20.0 1 04/18/2022 14:01 WG1849538 tert-Butylbenzene U 0.127 1.00 1 04/18/2022 14:01 WG1849538 trans-1,2-Dichloroethene U 0.149 1.00 1 04/18/2022 14:01 WG1849538 (S) Toluene-d8 107 80.0-120 04/18/2022 14:01 WG1849538 (S) 4-Bromofluorobenzene 107 77.0-126 04/18/2022 14:01 WG1849538 (S) 1,2-Dichloroethane-d4 89.4 70.0-130 04/18/2022 14:01 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 11 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 11 of 47 SAMPLE RESULTS - 04 L1482562 MW-6D Collected date/time: 04/13/22 10:35 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 04/18/2022 14:21 WG1849538 1,1,1-Trichloroethane U 0.149 1.00 1 04/18/2022 14:21 WG1849538 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 04/18/2022 14:21 WG1849538 1,1,2-Trichloroethane U 0.158 1.00 1 04/18/2022 14:21 WG1849538 1,1-Dichloroethane U 0.100 1.00 1 04/18/2022 14:21 WG1849538 1,1-Dichloroethene U 0.188 1.00 1 04/18/2022 14:21 WG1849538 1,1-Dichloropropene U 0.142 1.00 1 04/18/2022 14:21 WG1849538 1,2,3-Trichlorobenzene U 0.230 1.00 1 04/18/2022 14:21 WG1849538 1,2,3-Trichloropropane U 0.237 2.50 1 04/18/2022 14:21 WG1849538 1,2,4-Trichlorobenzene U 0.481 1.00 1 04/18/2022 14:21 WG1849538 1,2,4-Trimethylbenzene U 0.322 1.00 1 04/18/2022 14:21 WG1849538 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 04/18/2022 14:21 WG1849538 1,2-Dibromoethane U 0.126 1.00 1 04/18/2022 14:21 WG1849538 1,2-Dichlorobenzene U 0.107 1.00 1 04/18/2022 14:21 WG1849538 1,2-Dichloroethane U 0.0819 1.00 1 04/18/2022 14:21 WG1849538 1,2-Dichloropropane U 0.149 1.00 1 04/18/2022 14:21 WG1849538 1,3,5-Trimethylbenzene U 0.104 1.00 1 04/18/2022 14:21 WG1849538 1,3-Dichlorobenzene U 0.110 1.00 1 04/18/2022 14:21 WG1849538 1,3-Dichloropropane U 0.110 1.00 1 04/18/2022 14:21 WG1849538 1,4-Dichlorobenzene U 0.120 1.00 1 04/18/2022 14:21 WG1849538 2,2-Dichloropropane U 0.161 1.00 1 04/18/2022 14:21 WG1849538 2-Butanone (MEK)U 1.19 10.0 1 04/18/2022 14:21 WG1849538 2-Chlorotoluene U 0.106 1.00 1 04/18/2022 14:21 WG1849538 4-Chlorotoluene U 0.114 1.00 1 04/18/2022 14:21 WG1849538 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 04/18/2022 14:21 WG1849538 Acetone U 11.3 50.0 1 04/18/2022 14:21 WG1849538 Acrolein U C4 2.54 50.0 1 04/18/2022 14:21 WG1849538 Acrylonitrile U 0.671 10.0 1 04/18/2022 14:21 WG1849538 Benzene U 0.0941 1.00 1 04/18/2022 14:21 WG1849538 Bromobenzene U 0.118 1.00 1 04/18/2022 14:21 WG1849538 Bromodichloromethane U 0.136 1.00 1 04/18/2022 14:21 WG1849538 Bromoform U 0.129 1.00 1 04/18/2022 14:21 WG1849538 Bromomethane U 0.605 5.00 1 04/18/2022 14:21 WG1849538 Carbon tetrachloride U 0.128 1.00 1 04/18/2022 14:21 WG1849538 Chlorobenzene U 0.116 1.00 1 04/18/2022 14:21 WG1849538 Chlorodibromomethane U J4 0.140 1.00 1 04/18/2022 14:21 WG1849538 Chloroethane U 0.192 5.00 1 04/18/2022 14:21 WG1849538 Chloroform 0.253 J 0.111 5.00 1 04/18/2022 14:21 WG1849538 Chloromethane U 0.960 2.50 1 04/18/2022 14:21 WG1849538 Dichlorodifluoromethane U 0.374 5.00 1 04/18/2022 14:21 WG1849538 Ethanol U 42.0 100 1 04/18/2022 14:21 WG1849538 Ethyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:21 WG1849538 Ethylbenzene U 0.137 1.00 1 04/18/2022 14:21 WG1849538 Hexachloro-1,3-butadiene U 0.337 1.00 1 04/18/2022 14:21 WG1849538 Di-isopropyl ether U 0.105 1.00 1 04/18/2022 14:21 WG1849538 Isopropylbenzene U 0.105 1.00 1 04/18/2022 14:21 WG1849538 Methyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:21 WG1849538 Methylene Chloride U 0.430 5.00 1 04/18/2022 14:21 WG1849538 Naphthalene U 1.00 5.00 1 04/18/2022 14:21 WG1849538 Styrene U 0.118 1.00 1 04/18/2022 14:21 WG1849538 Tetrachloroethene U 0.300 1.00 1 04/18/2022 14:21 WG1849538 Toluene U 0.278 1.00 1 04/18/2022 14:21 WG1849538 Trichloroethene U J4 0.190 1.00 1 04/18/2022 14:21 WG1849538 Trichlorofluoromethane U 0.160 5.00 1 04/18/2022 14:21 WG1849538 Vinyl chloride U 0.234 1.00 1 04/18/2022 14:21 WG1849538 cis-1,2-Dichloroethene U 0.126 1.00 1 04/18/2022 14:21 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 12 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 12 of 47 SAMPLE RESULTS - 04 L1482562 MW-6D Collected date/time: 04/13/22 10:35 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes U 0.430 2.00 1 04/18/2022 14:21 WG1849538 n-Butylbenzene U 0.157 1.00 1 04/18/2022 14:21 WG1849538 n-Propylbenzene U 0.0993 1.00 1 04/18/2022 14:21 WG1849538 o-Xylene U 0.174 1.00 1 04/18/2022 14:21 WG1849538 p-Isopropyltoluene U 0.120 1.00 1 04/18/2022 14:21 WG1849538 sec-Butylbenzene U 0.125 1.00 1 04/18/2022 14:21 WG1849538 tert-Butyl alcohol U 4.06 5.00 1 04/18/2022 14:21 WG1849538 tert-Butyl Formate U 4.51 20.0 1 04/18/2022 14:21 WG1849538 tert-Butylbenzene U 0.127 1.00 1 04/18/2022 14:21 WG1849538 trans-1,2-Dichloroethene U 0.149 1.00 1 04/18/2022 14:21 WG1849538 (S) Toluene-d8 109 80.0-120 04/18/2022 14:21 WG1849538 (S) 4-Bromofluorobenzene 108 77.0-126 04/18/2022 14:21 WG1849538 (S) 1,2-Dichloroethane-d4 89.4 70.0-130 04/18/2022 14:21 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 13 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 13 of 47 SAMPLE RESULTS - 05 L1482562 MW-7 Collected date/time: 04/13/22 06:20 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 7.35 50.0 50 04/19/2022 13:05 WG1850548 1,1,1-Trichloroethane U 7.45 50.0 50 04/19/2022 13:05 WG1850548 1,1,2,2-Tetrachloroethane U 6.65 50.0 50 04/19/2022 13:05 WG1850548 1,1,2-Trichloroethane U 7.90 50.0 50 04/19/2022 13:05 WG1850548 1,1-Dichloroethane U 5.00 50.0 50 04/19/2022 13:05 WG1850548 1,1-Dichloroethene U 9.40 50.0 50 04/19/2022 13:05 WG1850548 1,1-Dichloropropene U 7.10 50.0 50 04/19/2022 13:05 WG1850548 1,2,3-Trichlorobenzene U 11.5 50.0 50 04/19/2022 13:05 WG1850548 1,2,3-Trichloropropane U 11.9 125 50 04/19/2022 13:05 WG1850548 1,2,4-Trichlorobenzene U 24.1 50.0 50 04/19/2022 13:05 WG1850548 1,2,4-Trimethylbenzene 62.5 16.1 50.0 50 04/19/2022 13:05 WG1850548 1,2-Dibromo-3-Chloropropane U 13.8 250 50 04/19/2022 13:05 WG1850548 1,2-Dibromoethane U 6.30 50.0 50 04/19/2022 13:05 WG1850548 1,2-Dichlorobenzene U 5.35 50.0 50 04/19/2022 13:05 WG1850548 1,2-Dichloroethane U 4.09 50.0 50 04/19/2022 13:05 WG1850548 1,2-Dichloropropane U 7.45 50.0 50 04/19/2022 13:05 WG1850548 1,3,5-Trimethylbenzene 24.3 J 5.20 50.0 50 04/19/2022 13:05 WG1850548 1,3-Dichlorobenzene U 5.50 50.0 50 04/19/2022 13:05 WG1850548 1,3-Dichloropropane U 5.50 50.0 50 04/19/2022 13:05 WG1850548 1,4-Dichlorobenzene U 6.00 50.0 50 04/19/2022 13:05 WG1850548 2,2-Dichloropropane U 8.05 50.0 50 04/19/2022 13:05 WG1850548 2-Butanone (MEK)U 59.5 500 50 04/19/2022 13:05 WG1850548 2-Chlorotoluene U 5.30 50.0 50 04/19/2022 13:05 WG1850548 4-Chlorotoluene U 5.70 50.0 50 04/19/2022 13:05 WG1850548 4-Methyl-2-pentanone (MIBK) U 23.9 500 50 04/19/2022 13:05 WG1850548 Acetone U 565 2500 50 04/19/2022 13:05 WG1850548 Acrolein U J4 127 2500 50 04/19/2022 13:05 WG1850548 Acrylonitrile U 33.6 500 50 04/19/2022 13:05 WG1850548 Benzene 2790 4.71 50.0 50 04/19/2022 13:05 WG1850548 Bromobenzene U 5.90 50.0 50 04/19/2022 13:05 WG1850548 Bromodichloromethane U 6.80 50.0 50 04/19/2022 13:05 WG1850548 Bromoform U 6.45 50.0 50 04/19/2022 13:05 WG1850548 Bromomethane U 30.3 250 50 04/19/2022 13:05 WG1850548 Carbon tetrachloride U 6.40 50.0 50 04/19/2022 13:05 WG1850548 Chlorobenzene U 5.80 50.0 50 04/19/2022 13:05 WG1850548 Chlorodibromomethane U 7.00 50.0 50 04/19/2022 13:05 WG1850548 Chloroethane U 9.60 250 50 04/19/2022 13:05 WG1850548 Chloroform U 5.55 250 50 04/19/2022 13:05 WG1850548 Chloromethane U 48.0 125 50 04/19/2022 13:05 WG1850548 Dichlorodifluoromethane U 18.7 250 50 04/19/2022 13:05 WG1850548 Ethanol U 2100 5000 50 04/20/2022 14:43 WG1850998 Ethyl tert-butyl ether U 5.05 50.0 50 04/19/2022 13:05 WG1850548 Ethylbenzene 182 6.85 50.0 50 04/19/2022 13:05 WG1850548 Hexachloro-1,3-butadiene U 16.9 50.0 50 04/19/2022 13:05 WG1850548 Di-isopropyl ether U 5.25 50.0 50 04/19/2022 13:05 WG1850548 Isopropylbenzene 15.4 J 5.25 50.0 50 04/19/2022 13:05 WG1850548 Methyl tert-butyl ether 6.57 J 5.05 50.0 50 04/19/2022 13:05 WG1850548 Methylene Chloride U 21.5 250 50 04/19/2022 13:05 WG1850548 Naphthalene U 50.0 250 50 04/19/2022 13:05 WG1850548 Styrene U 5.90 50.0 50 04/19/2022 13:05 WG1850548 Tetrachloroethene U 15.0 50.0 50 04/19/2022 13:05 WG1850548 Toluene 511 13.9 50.0 50 04/19/2022 13:05 WG1850548 Trichloroethene U 9.50 50.0 50 04/19/2022 13:05 WG1850548 Trichlorofluoromethane U 8.00 250 50 04/19/2022 13:05 WG1850548 Vinyl chloride U 11.7 50.0 50 04/19/2022 13:05 WG1850548 cis-1,2-Dichloroethene U 6.30 50.0 50 04/19/2022 13:05 WG1850548 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 14 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 14 of 47 SAMPLE RESULTS - 05 L1482562 MW-7 Collected date/time: 04/13/22 06:20 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes 278 21.5 100 50 04/19/2022 13:05 WG1850548 n-Butylbenzene U 7.85 50.0 50 04/19/2022 13:05 WG1850548 n-Propylbenzene 16.4 J 4.97 50.0 50 04/19/2022 13:05 WG1850548 o-Xylene 154 8.70 50.0 50 04/19/2022 13:05 WG1850548 p-Isopropyltoluene U 6.00 50.0 50 04/19/2022 13:05 WG1850548 sec-Butylbenzene U 6.25 50.0 50 04/19/2022 13:05 WG1850548 tert-Butyl alcohol U 203 250 50 04/19/2022 13:05 WG1850548 tert-Butyl Formate U J4 226 1000 50 04/20/2022 14:43 WG1850998 tert-Butylbenzene U 6.35 50.0 50 04/19/2022 13:05 WG1850548 trans-1,2-Dichloroethene U 7.45 50.0 50 04/19/2022 13:05 WG1850548 (S) Toluene-d8 103 80.0-120 04/19/2022 13:05 WG1850548 (S) Toluene-d8 109 80.0-120 04/20/2022 14:43 WG1850998 (S) 4-Bromofluorobenzene 104 77.0-126 04/19/2022 13:05 WG1850548 (S) 4-Bromofluorobenzene 86.8 77.0-126 04/20/2022 14:43 WG1850998 (S) 1,2-Dichloroethane-d4 111 70.0-130 04/19/2022 13:05 WG1850548 (S) 1,2-Dichloroethane-d4 99.7 70.0-130 04/20/2022 14:43 WG1850998 Sample Narrative: L1482562-05 WG1850548, WG1850998: Target compound too high to run at a lower dilution. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 15 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 15 of 47 SAMPLE RESULTS - 06 L1482562 MW-8 Collected date/time: 04/13/22 07:20 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 04/19/2022 12:27 WG1850548 1,1,1-Trichloroethane U 0.149 1.00 1 04/19/2022 12:27 WG1850548 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 04/19/2022 12:27 WG1850548 1,1,2-Trichloroethane U 0.158 1.00 1 04/19/2022 12:27 WG1850548 1,1-Dichloroethane U 0.100 1.00 1 04/19/2022 12:27 WG1850548 1,1-Dichloroethene U 0.188 1.00 1 04/19/2022 12:27 WG1850548 1,1-Dichloropropene U 0.142 1.00 1 04/19/2022 12:27 WG1850548 1,2,3-Trichlorobenzene U 0.230 1.00 1 04/19/2022 12:27 WG1850548 1,2,3-Trichloropropane U 0.237 2.50 1 04/19/2022 12:27 WG1850548 1,2,4-Trichlorobenzene U 0.481 1.00 1 04/19/2022 12:27 WG1850548 1,2,4-Trimethylbenzene 1.37 0.322 1.00 1 04/19/2022 12:27 WG1850548 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 04/19/2022 12:27 WG1850548 1,2-Dibromoethane U 0.126 1.00 1 04/19/2022 12:27 WG1850548 1,2-Dichlorobenzene U 0.107 1.00 1 04/19/2022 12:27 WG1850548 1,2-Dichloroethane U 0.0819 1.00 1 04/19/2022 12:27 WG1850548 1,2-Dichloropropane U 0.149 1.00 1 04/19/2022 12:27 WG1850548 1,3,5-Trimethylbenzene U 0.104 1.00 1 04/19/2022 12:27 WG1850548 1,3-Dichlorobenzene U 0.110 1.00 1 04/19/2022 12:27 WG1850548 1,3-Dichloropropane U 0.110 1.00 1 04/19/2022 12:27 WG1850548 1,4-Dichlorobenzene U 0.120 1.00 1 04/19/2022 12:27 WG1850548 2,2-Dichloropropane U 0.161 1.00 1 04/19/2022 12:27 WG1850548 2-Butanone (MEK)U 1.19 10.0 1 04/19/2022 12:27 WG1850548 2-Chlorotoluene U 0.106 1.00 1 04/19/2022 12:27 WG1850548 4-Chlorotoluene U 0.114 1.00 1 04/19/2022 12:27 WG1850548 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 04/19/2022 12:27 WG1850548 Acetone U 11.3 50.0 1 04/19/2022 12:27 WG1850548 Acrolein U J4 2.54 50.0 1 04/19/2022 12:27 WG1850548 Acrylonitrile U 0.671 10.0 1 04/19/2022 12:27 WG1850548 Benzene 26.5 0.0941 1.00 1 04/19/2022 12:27 WG1850548 Bromobenzene U 0.118 1.00 1 04/19/2022 12:27 WG1850548 Bromodichloromethane U 0.136 1.00 1 04/19/2022 12:27 WG1850548 Bromoform U 0.129 1.00 1 04/19/2022 12:27 WG1850548 Bromomethane U 0.605 5.00 1 04/19/2022 12:27 WG1850548 Carbon tetrachloride U 0.128 1.00 1 04/19/2022 12:27 WG1850548 Chlorobenzene U 0.116 1.00 1 04/19/2022 12:27 WG1850548 Chlorodibromomethane U 0.140 1.00 1 04/19/2022 12:27 WG1850548 Chloroethane U 0.192 5.00 1 04/19/2022 12:27 WG1850548 Chloroform U 0.111 5.00 1 04/19/2022 12:27 WG1850548 Chloromethane U 0.960 2.50 1 04/19/2022 12:27 WG1850548 Dichlorodifluoromethane U 0.374 5.00 1 04/19/2022 12:27 WG1850548 Ethanol U 42.0 100 1 04/20/2022 14:21 WG1850998 Ethyl tert-butyl ether U 0.101 1.00 1 04/19/2022 12:27 WG1850548 Ethylbenzene U 0.137 1.00 1 04/19/2022 12:27 WG1850548 Hexachloro-1,3-butadiene U 0.337 1.00 1 04/19/2022 12:27 WG1850548 Di-isopropyl ether U 0.105 1.00 1 04/19/2022 12:27 WG1850548 Isopropylbenzene 0.880 J 0.105 1.00 1 04/19/2022 12:27 WG1850548 Methyl tert-butyl ether U 0.101 1.00 1 04/19/2022 12:27 WG1850548 Methylene Chloride U 0.430 5.00 1 04/19/2022 12:27 WG1850548 Naphthalene 2.05 J 1.00 5.00 1 04/19/2022 12:27 WG1850548 Styrene U 0.118 1.00 1 04/19/2022 12:27 WG1850548 Tetrachloroethene U 0.300 1.00 1 04/19/2022 12:27 WG1850548 Toluene U 0.278 1.00 1 04/19/2022 12:27 WG1850548 Trichloroethene U 0.190 1.00 1 04/19/2022 12:27 WG1850548 Trichlorofluoromethane U 0.160 5.00 1 04/19/2022 12:27 WG1850548 Vinyl chloride U 0.234 1.00 1 04/19/2022 12:27 WG1850548 cis-1,2-Dichloroethene U 0.126 1.00 1 04/19/2022 12:27 WG1850548 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 16 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 16 of 47 SAMPLE RESULTS - 06 L1482562 MW-8 Collected date/time: 04/13/22 07:20 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes U 0.430 2.00 1 04/19/2022 12:27 WG1850548 n-Butylbenzene 0.159 J 0.157 1.00 1 04/19/2022 12:27 WG1850548 n-Propylbenzene U 0.0993 1.00 1 04/19/2022 12:27 WG1850548 o-Xylene 11.4 0.174 1.00 1 04/19/2022 12:27 WG1850548 p-Isopropyltoluene U 0.120 1.00 1 04/19/2022 12:27 WG1850548 sec-Butylbenzene 0.136 J 0.125 1.00 1 04/19/2022 12:27 WG1850548 tert-Butyl alcohol 16.9 4.06 5.00 1 04/19/2022 12:27 WG1850548 tert-Butyl Formate U J4 4.51 20.0 1 04/20/2022 14:21 WG1850998 tert-Butylbenzene U 0.127 1.00 1 04/19/2022 12:27 WG1850548 trans-1,2-Dichloroethene U 0.149 1.00 1 04/19/2022 12:27 WG1850548 (S) Toluene-d8 104 80.0-120 04/19/2022 12:27 WG1850548 (S) Toluene-d8 111 80.0-120 04/20/2022 14:21 WG1850998 (S) 4-Bromofluorobenzene 106 77.0-126 04/19/2022 12:27 WG1850548 (S) 4-Bromofluorobenzene 88.8 77.0-126 04/20/2022 14:21 WG1850998 (S) 1,2-Dichloroethane-d4 111 70.0-130 04/19/2022 12:27 WG1850548 (S) 1,2-Dichloroethane-d4 103 70.0-130 04/20/2022 14:21 WG1850998 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 17 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 17 of 47 SAMPLE RESULTS - 07 L1482562 MW-9 Collected date/time: 04/13/22 08:25 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 04/18/2022 14:42 WG1849538 1,1,1-Trichloroethane U 0.149 1.00 1 04/18/2022 14:42 WG1849538 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 04/18/2022 14:42 WG1849538 1,1,2-Trichloroethane U 0.158 1.00 1 04/18/2022 14:42 WG1849538 1,1-Dichloroethane U 0.100 1.00 1 04/18/2022 14:42 WG1849538 1,1-Dichloroethene U 0.188 1.00 1 04/18/2022 14:42 WG1849538 1,1-Dichloropropene U 0.142 1.00 1 04/18/2022 14:42 WG1849538 1,2,3-Trichlorobenzene U 0.230 1.00 1 04/18/2022 14:42 WG1849538 1,2,3-Trichloropropane U 0.237 2.50 1 04/18/2022 14:42 WG1849538 1,2,4-Trichlorobenzene U 0.481 1.00 1 04/18/2022 14:42 WG1849538 1,2,4-Trimethylbenzene U 0.322 1.00 1 04/18/2022 14:42 WG1849538 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 04/18/2022 14:42 WG1849538 1,2-Dibromoethane U 0.126 1.00 1 04/18/2022 14:42 WG1849538 1,2-Dichlorobenzene U 0.107 1.00 1 04/18/2022 14:42 WG1849538 1,2-Dichloroethane U 0.0819 1.00 1 04/18/2022 14:42 WG1849538 1,2-Dichloropropane U 0.149 1.00 1 04/18/2022 14:42 WG1849538 1,3,5-Trimethylbenzene U 0.104 1.00 1 04/18/2022 14:42 WG1849538 1,3-Dichlorobenzene U 0.110 1.00 1 04/18/2022 14:42 WG1849538 1,3-Dichloropropane U 0.110 1.00 1 04/18/2022 14:42 WG1849538 1,4-Dichlorobenzene U 0.120 1.00 1 04/18/2022 14:42 WG1849538 2,2-Dichloropropane U 0.161 1.00 1 04/18/2022 14:42 WG1849538 2-Butanone (MEK)U 1.19 10.0 1 04/18/2022 14:42 WG1849538 2-Chlorotoluene U 0.106 1.00 1 04/18/2022 14:42 WG1849538 4-Chlorotoluene U 0.114 1.00 1 04/18/2022 14:42 WG1849538 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 04/18/2022 14:42 WG1849538 Acetone U 11.3 50.0 1 04/18/2022 14:42 WG1849538 Acrolein U C4 2.54 50.0 1 04/18/2022 14:42 WG1849538 Acrylonitrile U 0.671 10.0 1 04/18/2022 14:42 WG1849538 Benzene U 0.0941 1.00 1 04/18/2022 14:42 WG1849538 Bromobenzene U 0.118 1.00 1 04/18/2022 14:42 WG1849538 Bromodichloromethane U 0.136 1.00 1 04/18/2022 14:42 WG1849538 Bromoform U 0.129 1.00 1 04/18/2022 14:42 WG1849538 Bromomethane U 0.605 5.00 1 04/18/2022 14:42 WG1849538 Carbon tetrachloride U 0.128 1.00 1 04/18/2022 14:42 WG1849538 Chlorobenzene U 0.116 1.00 1 04/18/2022 14:42 WG1849538 Chlorodibromomethane U J4 0.140 1.00 1 04/18/2022 14:42 WG1849538 Chloroethane U 0.192 5.00 1 04/18/2022 14:42 WG1849538 Chloroform U 0.111 5.00 1 04/18/2022 14:42 WG1849538 Chloromethane U 0.960 2.50 1 04/18/2022 14:42 WG1849538 Dichlorodifluoromethane U 0.374 5.00 1 04/18/2022 14:42 WG1849538 Ethanol U 42.0 100 1 04/18/2022 14:42 WG1849538 Ethyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:42 WG1849538 Ethylbenzene U 0.137 1.00 1 04/18/2022 14:42 WG1849538 Hexachloro-1,3-butadiene U 0.337 1.00 1 04/18/2022 14:42 WG1849538 Di-isopropyl ether U 0.105 1.00 1 04/18/2022 14:42 WG1849538 Isopropylbenzene U 0.105 1.00 1 04/18/2022 14:42 WG1849538 Methyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:42 WG1849538 Methylene Chloride U 0.430 5.00 1 04/18/2022 14:42 WG1849538 Naphthalene U 1.00 5.00 1 04/18/2022 14:42 WG1849538 Styrene U 0.118 1.00 1 04/18/2022 14:42 WG1849538 Tetrachloroethene U 0.300 1.00 1 04/18/2022 14:42 WG1849538 Toluene U 0.278 1.00 1 04/18/2022 14:42 WG1849538 Trichloroethene U J4 0.190 1.00 1 04/18/2022 14:42 WG1849538 Trichlorofluoromethane U 0.160 5.00 1 04/18/2022 14:42 WG1849538 Vinyl chloride U 0.234 1.00 1 04/18/2022 14:42 WG1849538 cis-1,2-Dichloroethene U 0.126 1.00 1 04/18/2022 14:42 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 18 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 18 of 47 SAMPLE RESULTS - 07 L1482562 MW-9 Collected date/time: 04/13/22 08:25 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes U 0.430 2.00 1 04/18/2022 14:42 WG1849538 n-Butylbenzene U 0.157 1.00 1 04/18/2022 14:42 WG1849538 n-Propylbenzene U 0.0993 1.00 1 04/18/2022 14:42 WG1849538 o-Xylene U 0.174 1.00 1 04/18/2022 14:42 WG1849538 p-Isopropyltoluene U 0.120 1.00 1 04/18/2022 14:42 WG1849538 sec-Butylbenzene U 0.125 1.00 1 04/18/2022 14:42 WG1849538 tert-Butyl alcohol U 4.06 5.00 1 04/18/2022 14:42 WG1849538 tert-Butyl Formate U 4.51 20.0 1 04/18/2022 14:42 WG1849538 tert-Butylbenzene U 0.127 1.00 1 04/18/2022 14:42 WG1849538 trans-1,2-Dichloroethene U 0.149 1.00 1 04/18/2022 14:42 WG1849538 (S) Toluene-d8 106 80.0-120 04/18/2022 14:42 WG1849538 (S) 4-Bromofluorobenzene 105 77.0-126 04/18/2022 14:42 WG1849538 (S) 1,2-Dichloroethane-d4 90.3 70.0-130 04/18/2022 14:42 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 19 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 19 of 47 SAMPLE RESULTS - 08 L1482562 MW-10 Collected date/time: 04/13/22 09:00 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 2.94 20.0 20 04/19/2022 13:24 WG1850548 1,1,1-Trichloroethane U 2.98 20.0 20 04/19/2022 13:24 WG1850548 1,1,2,2-Tetrachloroethane U 2.66 20.0 20 04/19/2022 13:24 WG1850548 1,1,2-Trichloroethane U 3.16 20.0 20 04/19/2022 13:24 WG1850548 1,1-Dichloroethane U 2.00 20.0 20 04/19/2022 13:24 WG1850548 1,1-Dichloroethene U 3.76 20.0 20 04/19/2022 13:24 WG1850548 1,1-Dichloropropene U 2.84 20.0 20 04/19/2022 13:24 WG1850548 1,2,3-Trichlorobenzene U 4.60 20.0 20 04/19/2022 13:24 WG1850548 1,2,3-Trichloropropane U 4.74 50.0 20 04/19/2022 13:24 WG1850548 1,2,4-Trichlorobenzene U 9.62 20.0 20 04/19/2022 13:24 WG1850548 1,2,4-Trimethylbenzene 79.3 6.44 20.0 20 04/19/2022 13:24 WG1850548 1,2-Dibromo-3-Chloropropane U 5.52 100 20 04/19/2022 13:24 WG1850548 1,2-Dibromoethane U 2.52 20.0 20 04/19/2022 13:24 WG1850548 1,2-Dichlorobenzene U 2.14 20.0 20 04/19/2022 13:24 WG1850548 1,2-Dichloroethane U 1.64 20.0 20 04/19/2022 13:24 WG1850548 1,2-Dichloropropane U 2.98 20.0 20 04/19/2022 13:24 WG1850548 1,3,5-Trimethylbenzene 18.0 J 2.08 20.0 20 04/19/2022 13:24 WG1850548 1,3-Dichlorobenzene U 2.20 20.0 20 04/19/2022 13:24 WG1850548 1,3-Dichloropropane U 2.20 20.0 20 04/19/2022 13:24 WG1850548 1,4-Dichlorobenzene U 2.40 20.0 20 04/19/2022 13:24 WG1850548 2,2-Dichloropropane U 3.22 20.0 20 04/19/2022 13:24 WG1850548 2-Butanone (MEK)U 23.8 200 20 04/19/2022 13:24 WG1850548 2-Chlorotoluene U 2.12 20.0 20 04/19/2022 13:24 WG1850548 4-Chlorotoluene U 2.28 20.0 20 04/19/2022 13:24 WG1850548 4-Methyl-2-pentanone (MIBK) U 9.56 200 20 04/19/2022 13:24 WG1850548 Acetone 274 J 226 1000 20 04/19/2022 13:24 WG1850548 Acrolein U J4 50.8 1000 20 04/19/2022 13:24 WG1850548 Acrylonitrile U 13.4 200 20 04/19/2022 13:24 WG1850548 Benzene 1150 1.88 20.0 20 04/19/2022 13:24 WG1850548 Bromobenzene U 2.36 20.0 20 04/19/2022 13:24 WG1850548 Bromodichloromethane U 2.72 20.0 20 04/19/2022 13:24 WG1850548 Bromoform U 2.58 20.0 20 04/19/2022 13:24 WG1850548 Bromomethane U 12.1 100 20 04/19/2022 13:24 WG1850548 Carbon tetrachloride U 2.56 20.0 20 04/19/2022 13:24 WG1850548 Chlorobenzene U 2.32 20.0 20 04/19/2022 13:24 WG1850548 Chlorodibromomethane U 2.80 20.0 20 04/19/2022 13:24 WG1850548 Chloroethane U 3.84 100 20 04/19/2022 13:24 WG1850548 Chloroform U 2.22 100 20 04/19/2022 13:24 WG1850548 Chloromethane U 19.2 50.0 20 04/19/2022 13:24 WG1850548 Dichlorodifluoromethane U 7.48 100 20 04/19/2022 13:24 WG1850548 Ethanol U 840 2000 20 04/20/2022 15:04 WG1850998 Ethyl tert-butyl ether U 2.02 20.0 20 04/19/2022 13:24 WG1850548 Ethylbenzene 140 2.74 20.0 20 04/19/2022 13:24 WG1850548 Hexachloro-1,3-butadiene U 6.74 20.0 20 04/19/2022 13:24 WG1850548 Di-isopropyl ether 2.25 J 2.10 20.0 20 04/19/2022 13:24 WG1850548 Isopropylbenzene 7.60 J 2.10 20.0 20 04/19/2022 13:24 WG1850548 Methyl tert-butyl ether U 2.02 20.0 20 04/19/2022 13:24 WG1850548 Methylene Chloride U 8.60 100 20 04/19/2022 13:24 WG1850548 Naphthalene 32.3 J 20.0 100 20 04/19/2022 13:24 WG1850548 Styrene U 2.36 20.0 20 04/19/2022 13:24 WG1850548 Tetrachloroethene U 6.00 20.0 20 04/19/2022 13:24 WG1850548 Toluene 651 5.56 20.0 20 04/19/2022 13:24 WG1850548 Trichloroethene U 3.80 20.0 20 04/19/2022 13:24 WG1850548 Trichlorofluoromethane U 3.20 100 20 04/19/2022 13:24 WG1850548 Vinyl chloride U 4.68 20.0 20 04/19/2022 13:24 WG1850548 cis-1,2-Dichloroethene U 2.52 20.0 20 04/19/2022 13:24 WG1850548 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 20 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 20 of 47 SAMPLE RESULTS - 08 L1482562 MW-10 Collected date/time: 04/13/22 09:00 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes 319 8.60 40.0 20 04/19/2022 13:24 WG1850548 n-Butylbenzene U 3.14 20.0 20 04/19/2022 13:24 WG1850548 n-Propylbenzene 14.2 J 1.99 20.0 20 04/19/2022 13:24 WG1850548 o-Xylene 266 3.48 20.0 20 04/19/2022 13:24 WG1850548 p-Isopropyltoluene U 2.40 20.0 20 04/19/2022 13:24 WG1850548 sec-Butylbenzene U 2.50 20.0 20 04/19/2022 13:24 WG1850548 tert-Butyl alcohol U 81.2 100 20 04/19/2022 13:24 WG1850548 tert-Butyl Formate U J4 90.2 400 20 04/20/2022 15:04 WG1850998 tert-Butylbenzene 12.6 J 2.54 20.0 20 04/19/2022 13:24 WG1850548 trans-1,2-Dichloroethene U 2.98 20.0 20 04/19/2022 13:24 WG1850548 (S) Toluene-d8 104 80.0-120 04/19/2022 13:24 WG1850548 (S) Toluene-d8 113 80.0-120 04/20/2022 15:04 WG1850998 (S) 4-Bromofluorobenzene 106 77.0-126 04/19/2022 13:24 WG1850548 (S) 4-Bromofluorobenzene 91.8 77.0-126 04/20/2022 15:04 WG1850998 (S) 1,2-Dichloroethane-d4 109 70.0-130 04/19/2022 13:24 WG1850548 (S) 1,2-Dichloroethane-d4 102 70.0-130 04/20/2022 15:04 WG1850998 Sample Narrative: L1482562-08 WG1850548, WG1850998: Target compound too high to run at a lower dilution. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 21 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 21 of 47 SAMPLE RESULTS - 09 L1482562 MW-13 Collected date/time: 04/13/22 06:50 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 147 1000 1000 04/18/2022 18:47 WG1849538 1,1,1-Trichloroethane U 149 1000 1000 04/18/2022 18:47 WG1849538 1,1,2,2-Tetrachloroethane U 133 1000 1000 04/18/2022 18:47 WG1849538 1,1,2-Trichloroethane U 158 1000 1000 04/18/2022 18:47 WG1849538 1,1-Dichloroethane U 100 1000 1000 04/18/2022 18:47 WG1849538 1,1-Dichloroethene U 188 1000 1000 04/18/2022 18:47 WG1849538 1,1-Dichloropropene U 142 1000 1000 04/18/2022 18:47 WG1849538 1,2,3-Trichlorobenzene U 230 1000 1000 04/18/2022 18:47 WG1849538 1,2,3-Trichloropropane U 237 2500 1000 04/18/2022 18:47 WG1849538 1,2,4-Trichlorobenzene U 481 1000 1000 04/18/2022 18:47 WG1849538 1,2,4-Trimethylbenzene 1960 322 1000 1000 04/18/2022 18:47 WG1849538 1,2-Dibromo-3-Chloropropane U 276 5000 1000 04/18/2022 18:47 WG1849538 1,2-Dibromoethane U 126 1000 1000 04/18/2022 18:47 WG1849538 1,2-Dichlorobenzene U 107 1000 1000 04/18/2022 18:47 WG1849538 1,2-Dichloroethane U 81.9 1000 1000 04/18/2022 18:47 WG1849538 1,2-Dichloropropane U 149 1000 1000 04/18/2022 18:47 WG1849538 1,3,5-Trimethylbenzene 514 J 104 1000 1000 04/18/2022 18:47 WG1849538 1,3-Dichlorobenzene U 110 1000 1000 04/18/2022 18:47 WG1849538 1,3-Dichloropropane U 110 1000 1000 04/18/2022 18:47 WG1849538 1,4-Dichlorobenzene U 120 1000 1000 04/18/2022 18:47 WG1849538 2,2-Dichloropropane U 161 1000 1000 04/18/2022 18:47 WG1849538 2-Butanone (MEK)U 1190 10000 1000 04/18/2022 18:47 WG1849538 2-Chlorotoluene U 106 1000 1000 04/18/2022 18:47 WG1849538 4-Chlorotoluene U 114 1000 1000 04/18/2022 18:47 WG1849538 4-Methyl-2-pentanone (MIBK) U 478 10000 1000 04/18/2022 18:47 WG1849538 Acetone U 11300 50000 1000 04/18/2022 18:47 WG1849538 Acrolein U C4 2540 50000 1000 04/18/2022 18:47 WG1849538 Acrylonitrile U 671 10000 1000 04/18/2022 18:47 WG1849538 Benzene 5320 94.1 1000 1000 04/18/2022 18:47 WG1849538 Bromobenzene U 118 1000 1000 04/18/2022 18:47 WG1849538 Bromodichloromethane U 136 1000 1000 04/18/2022 18:47 WG1849538 Bromoform U 129 1000 1000 04/18/2022 18:47 WG1849538 Bromomethane U 605 5000 1000 04/18/2022 18:47 WG1849538 Carbon tetrachloride U 128 1000 1000 04/18/2022 18:47 WG1849538 Chlorobenzene U 116 1000 1000 04/18/2022 18:47 WG1849538 Chlorodibromomethane U J4 140 1000 1000 04/18/2022 18:47 WG1849538 Chloroethane U 192 5000 1000 04/18/2022 18:47 WG1849538 Chloroform U 111 5000 1000 04/18/2022 18:47 WG1849538 Chloromethane U 960 2500 1000 04/18/2022 18:47 WG1849538 Dichlorodifluoromethane U 374 5000 1000 04/18/2022 18:47 WG1849538 Ethanol U 42000 100000 1000 04/18/2022 18:47 WG1849538 Ethyl tert-butyl ether U 101 1000 1000 04/18/2022 18:47 WG1849538 Ethylbenzene 2430 137 1000 1000 04/18/2022 18:47 WG1849538 Hexachloro-1,3-butadiene U 337 1000 1000 04/18/2022 18:47 WG1849538 Di-isopropyl ether U 105 1000 1000 04/18/2022 18:47 WG1849538 Isopropylbenzene 114 J 105 1000 1000 04/18/2022 18:47 WG1849538 Methyl tert-butyl ether U 101 1000 1000 04/18/2022 18:47 WG1849538 Methylene Chloride U 430 5000 1000 04/18/2022 18:47 WG1849538 Naphthalene U 1000 5000 1000 04/18/2022 18:47 WG1849538 Styrene U 118 1000 1000 04/18/2022 18:47 WG1849538 Tetrachloroethene U 300 1000 1000 04/18/2022 18:47 WG1849538 Toluene 16400 278 1000 1000 04/18/2022 18:47 WG1849538 Trichloroethene U J4 190 1000 1000 04/18/2022 18:47 WG1849538 Trichlorofluoromethane U 160 5000 1000 04/18/2022 18:47 WG1849538 Vinyl chloride U 234 1000 1000 04/18/2022 18:47 WG1849538 cis-1,2-Dichloroethene U 126 1000 1000 04/18/2022 18:47 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 22 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 22 of 47 SAMPLE RESULTS - 09 L1482562 MW-13 Collected date/time: 04/13/22 06:50 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes 9150 430 2000 1000 04/18/2022 18:47 WG1849538 n-Butylbenzene U 157 1000 1000 04/18/2022 18:47 WG1849538 n-Propylbenzene 277 J 99.3 1000 1000 04/18/2022 18:47 WG1849538 o-Xylene 4020 174 1000 1000 04/18/2022 18:47 WG1849538 p-Isopropyltoluene U 120 1000 1000 04/18/2022 18:47 WG1849538 sec-Butylbenzene U 125 1000 1000 04/18/2022 18:47 WG1849538 tert-Butyl alcohol U 4060 5000 1000 04/18/2022 18:47 WG1849538 tert-Butyl Formate U 4510 20000 1000 04/18/2022 18:47 WG1849538 tert-Butylbenzene U 127 1000 1000 04/18/2022 18:47 WG1849538 trans-1,2-Dichloroethene U 149 1000 1000 04/18/2022 18:47 WG1849538 (S) Toluene-d8 107 80.0-120 04/18/2022 18:47 WG1849538 (S) 4-Bromofluorobenzene 108 77.0-126 04/18/2022 18:47 WG1849538 (S) 1,2-Dichloroethane-d4 90.9 70.0-130 04/18/2022 18:47 WG1849538 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 23 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 23 of 47 SAMPLE RESULTS - 10 L1482562 MW-14 Collected date/time: 04/13/22 11:05 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 7.35 50.0 50 04/19/2022 13:43 WG1850548 1,1,1-Trichloroethane U 7.45 50.0 50 04/19/2022 13:43 WG1850548 1,1,2,2-Tetrachloroethane U 6.65 50.0 50 04/19/2022 13:43 WG1850548 1,1,2-Trichloroethane U 7.90 50.0 50 04/19/2022 13:43 WG1850548 1,1-Dichloroethane U 5.00 50.0 50 04/19/2022 13:43 WG1850548 1,1-Dichloroethene U 9.40 50.0 50 04/19/2022 13:43 WG1850548 1,1-Dichloropropene U 7.10 50.0 50 04/19/2022 13:43 WG1850548 1,2,3-Trichlorobenzene U 11.5 50.0 50 04/19/2022 13:43 WG1850548 1,2,3-Trichloropropane U 11.9 125 50 04/19/2022 13:43 WG1850548 1,2,4-Trichlorobenzene U 24.1 50.0 50 04/19/2022 13:43 WG1850548 1,2,4-Trimethylbenzene 228 16.1 50.0 50 04/19/2022 13:43 WG1850548 1,2-Dibromo-3-Chloropropane U 13.8 250 50 04/19/2022 13:43 WG1850548 1,2-Dibromoethane U 6.30 50.0 50 04/19/2022 13:43 WG1850548 1,2-Dichlorobenzene U 5.35 50.0 50 04/19/2022 13:43 WG1850548 1,2-Dichloroethane U 4.09 50.0 50 04/19/2022 13:43 WG1850548 1,2-Dichloropropane U 7.45 50.0 50 04/19/2022 13:43 WG1850548 1,3,5-Trimethylbenzene 70.8 5.20 50.0 50 04/19/2022 13:43 WG1850548 1,3-Dichlorobenzene U 5.50 50.0 50 04/19/2022 13:43 WG1850548 1,3-Dichloropropane U 5.50 50.0 50 04/19/2022 13:43 WG1850548 1,4-Dichlorobenzene U 6.00 50.0 50 04/19/2022 13:43 WG1850548 2,2-Dichloropropane U 8.05 50.0 50 04/19/2022 13:43 WG1850548 2-Butanone (MEK)U 59.5 500 50 04/19/2022 13:43 WG1850548 2-Chlorotoluene 8.17 J 5.30 50.0 50 04/19/2022 13:43 WG1850548 4-Chlorotoluene 20.4 J 5.70 50.0 50 04/19/2022 13:43 WG1850548 4-Methyl-2-pentanone (MIBK) 50.6 J 23.9 500 50 04/19/2022 13:43 WG1850548 Acetone U 565 2500 50 04/19/2022 13:43 WG1850548 Acrolein U J4 127 2500 50 04/19/2022 13:43 WG1850548 Acrylonitrile U 33.6 500 50 04/19/2022 13:43 WG1850548 Benzene 1170 4.71 50.0 50 04/19/2022 13:43 WG1850548 Bromobenzene U 5.90 50.0 50 04/19/2022 13:43 WG1850548 Bromodichloromethane U 6.80 50.0 50 04/19/2022 13:43 WG1850548 Bromoform U 6.45 50.0 50 04/19/2022 13:43 WG1850548 Bromomethane U 30.3 250 50 04/19/2022 13:43 WG1850548 Carbon tetrachloride U 6.40 50.0 50 04/19/2022 13:43 WG1850548 Chlorobenzene U 5.80 50.0 50 04/19/2022 13:43 WG1850548 Chlorodibromomethane U 7.00 50.0 50 04/19/2022 13:43 WG1850548 Chloroethane U 9.60 250 50 04/19/2022 13:43 WG1850548 Chloroform U 5.55 250 50 04/19/2022 13:43 WG1850548 Chloromethane U 48.0 125 50 04/19/2022 13:43 WG1850548 Dichlorodifluoromethane U 18.7 250 50 04/19/2022 13:43 WG1850548 Ethanol U 2100 5000 50 04/20/2022 15:26 WG1850998 Ethyl tert-butyl ether U 5.05 50.0 50 04/19/2022 13:43 WG1850548 Ethylbenzene 588 6.85 50.0 50 04/19/2022 13:43 WG1850548 Hexachloro-1,3-butadiene U 16.9 50.0 50 04/19/2022 13:43 WG1850548 Di-isopropyl ether U 5.25 50.0 50 04/19/2022 13:43 WG1850548 Isopropylbenzene 35.2 J 5.25 50.0 50 04/19/2022 13:43 WG1850548 Methyl tert-butyl ether U 5.05 50.0 50 04/19/2022 13:43 WG1850548 Methylene Chloride U 21.5 250 50 04/19/2022 13:43 WG1850548 Naphthalene 126 J 50.0 250 50 04/19/2022 13:43 WG1850548 Styrene 44.1 J 5.90 50.0 50 04/19/2022 13:43 WG1850548 Tetrachloroethene U 15.0 50.0 50 04/19/2022 13:43 WG1850548 Toluene 981 13.9 50.0 50 04/19/2022 13:43 WG1850548 Trichloroethene U 9.50 50.0 50 04/19/2022 13:43 WG1850548 Trichlorofluoromethane U 8.00 250 50 04/19/2022 13:43 WG1850548 Vinyl chloride U 11.7 50.0 50 04/19/2022 13:43 WG1850548 cis-1,2-Dichloroethene U 6.30 50.0 50 04/19/2022 13:43 WG1850548 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 24 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 24 of 47 SAMPLE RESULTS - 10 L1482562 MW-14 Collected date/time: 04/13/22 11:05 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes 752 21.5 100 50 04/19/2022 13:43 WG1850548 n-Butylbenzene U 7.85 50.0 50 04/19/2022 13:43 WG1850548 n-Propylbenzene 52.3 4.97 50.0 50 04/19/2022 13:43 WG1850548 o-Xylene 1020 8.70 50.0 50 04/19/2022 13:43 WG1850548 p-Isopropyltoluene 6.59 J 6.00 50.0 50 04/19/2022 13:43 WG1850548 sec-Butylbenzene U 6.25 50.0 50 04/19/2022 13:43 WG1850548 tert-Butyl alcohol U 203 250 50 04/19/2022 13:43 WG1850548 tert-Butyl Formate U J4 226 1000 50 04/20/2022 15:26 WG1850998 tert-Butylbenzene 33.1 J 6.35 50.0 50 04/19/2022 13:43 WG1850548 trans-1,2-Dichloroethene U 7.45 50.0 50 04/19/2022 13:43 WG1850548 (S) Toluene-d8 103 80.0-120 04/19/2022 13:43 WG1850548 (S) Toluene-d8 110 80.0-120 04/20/2022 15:26 WG1850998 (S) 4-Bromofluorobenzene 107 77.0-126 04/19/2022 13:43 WG1850548 (S) 4-Bromofluorobenzene 89.2 77.0-126 04/20/2022 15:26 WG1850998 (S) 1,2-Dichloroethane-d4 113 70.0-130 04/19/2022 13:43 WG1850548 (S) 1,2-Dichloroethane-d4 101 70.0-130 04/20/2022 15:26 WG1850998 Sample Narrative: L1482562-10 WG1850548, WG1850998: Target compound too high to run at a lower dilution. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 25 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 25 of 47 SAMPLE RESULTS - 11 L1482562 MW-15 Collected date/time: 04/13/22 12:20 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 04/18/2022 14:38 WG1850232 1,1,1-Trichloroethane U 0.149 1.00 1 04/18/2022 14:38 WG1850232 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 04/18/2022 14:38 WG1850232 1,1,2-Trichloroethane U 0.158 1.00 1 04/18/2022 14:38 WG1850232 1,1-Dichloroethane U 0.100 1.00 1 04/18/2022 14:38 WG1850232 1,1-Dichloroethene U 0.188 1.00 1 04/18/2022 14:38 WG1850232 1,1-Dichloropropene U 0.142 1.00 1 04/18/2022 14:38 WG1850232 1,2,3-Trichlorobenzene U 0.230 1.00 1 04/18/2022 14:38 WG1850232 1,2,3-Trichloropropane U 0.237 2.50 1 04/18/2022 14:38 WG1850232 1,2,4-Trichlorobenzene U 0.481 1.00 1 04/18/2022 14:38 WG1850232 1,2,4-Trimethylbenzene U 0.322 1.00 1 04/18/2022 14:38 WG1850232 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 04/18/2022 14:38 WG1850232 1,2-Dibromoethane U 0.126 1.00 1 04/18/2022 14:38 WG1850232 1,2-Dichlorobenzene U 0.107 1.00 1 04/18/2022 14:38 WG1850232 1,2-Dichloroethane U 0.0819 1.00 1 04/18/2022 14:38 WG1850232 1,2-Dichloropropane U 0.149 1.00 1 04/18/2022 14:38 WG1850232 1,3,5-Trimethylbenzene U 0.104 1.00 1 04/18/2022 14:38 WG1850232 1,3-Dichlorobenzene U 0.110 1.00 1 04/18/2022 14:38 WG1850232 1,3-Dichloropropane U 0.110 1.00 1 04/18/2022 14:38 WG1850232 1,4-Dichlorobenzene U 0.120 1.00 1 04/18/2022 14:38 WG1850232 2,2-Dichloropropane U 0.161 1.00 1 04/18/2022 14:38 WG1850232 2-Butanone (MEK)U 1.19 10.0 1 04/18/2022 14:38 WG1850232 2-Chlorotoluene U 0.106 1.00 1 04/18/2022 14:38 WG1850232 4-Chlorotoluene U 0.114 1.00 1 04/18/2022 14:38 WG1850232 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 04/18/2022 14:38 WG1850232 Acetone U 11.3 50.0 1 04/18/2022 14:38 WG1850232 Acrolein U J4 2.54 50.0 1 04/18/2022 14:38 WG1850232 Acrylonitrile U 0.671 10.0 1 04/18/2022 14:38 WG1850232 Benzene U 0.0941 1.00 1 04/18/2022 14:38 WG1850232 Bromobenzene U 0.118 1.00 1 04/18/2022 14:38 WG1850232 Bromodichloromethane U 0.136 1.00 1 04/18/2022 14:38 WG1850232 Bromoform U 0.129 1.00 1 04/18/2022 14:38 WG1850232 Bromomethane U 0.605 5.00 1 04/18/2022 14:38 WG1850232 Carbon tetrachloride U 0.128 1.00 1 04/18/2022 14:38 WG1850232 Chlorobenzene U 0.116 1.00 1 04/18/2022 14:38 WG1850232 Chlorodibromomethane U 0.140 1.00 1 04/18/2022 14:38 WG1850232 Chloroethane U 0.192 5.00 1 04/18/2022 14:38 WG1850232 Chloroform 6.88 0.111 5.00 1 04/18/2022 14:38 WG1850232 Chloromethane U 0.960 2.50 1 04/18/2022 14:38 WG1850232 Dichlorodifluoromethane U 0.374 5.00 1 04/18/2022 14:38 WG1850232 Ethanol U 42.0 100 1 04/21/2022 01:01 WG1850895 Ethyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:38 WG1850232 Ethylbenzene U 0.137 1.00 1 04/18/2022 14:38 WG1850232 Hexachloro-1,3-butadiene U 0.337 1.00 1 04/18/2022 14:38 WG1850232 Di-isopropyl ether U 0.105 1.00 1 04/18/2022 14:38 WG1850232 Isopropylbenzene U 0.105 1.00 1 04/18/2022 14:38 WG1850232 Methyl tert-butyl ether 0.113 J 0.101 1.00 1 04/18/2022 14:38 WG1850232 Methylene Chloride U 0.430 5.00 1 04/18/2022 14:38 WG1850232 Naphthalene U 1.00 5.00 1 04/18/2022 14:38 WG1850232 Styrene U 0.118 1.00 1 04/18/2022 14:38 WG1850232 Tetrachloroethene U 0.300 1.00 1 04/18/2022 14:38 WG1850232 Toluene U 0.278 1.00 1 04/18/2022 14:38 WG1850232 Trichloroethene U 0.190 1.00 1 04/18/2022 14:38 WG1850232 Trichlorofluoromethane U 0.160 5.00 1 04/18/2022 14:38 WG1850232 Vinyl chloride U 0.234 1.00 1 04/18/2022 14:38 WG1850232 cis-1,2-Dichloroethene U 0.126 1.00 1 04/18/2022 14:38 WG1850232 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 26 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 26 of 47 SAMPLE RESULTS - 11 L1482562 MW-15 Collected date/time: 04/13/22 12:20 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes U 0.430 2.00 1 04/18/2022 14:38 WG1850232 n-Butylbenzene U 0.157 1.00 1 04/18/2022 14:38 WG1850232 n-Propylbenzene U J4 0.0993 1.00 1 04/18/2022 14:38 WG1850232 o-Xylene U 0.174 1.00 1 04/18/2022 14:38 WG1850232 p-Isopropyltoluene U 0.120 1.00 1 04/18/2022 14:38 WG1850232 sec-Butylbenzene U 0.125 1.00 1 04/18/2022 14:38 WG1850232 tert-Butyl alcohol U 4.06 5.00 1 04/18/2022 14:38 WG1850232 tert-Butyl Formate U 4.51 20.0 1 04/21/2022 01:01 WG1850895 tert-Butylbenzene U 0.127 1.00 1 04/18/2022 14:38 WG1850232 trans-1,2-Dichloroethene U 0.149 1.00 1 04/18/2022 14:38 WG1850232 (S) Toluene-d8 102 80.0-120 04/18/2022 14:38 WG1850232 (S) Toluene-d8 107 80.0-120 04/21/2022 01:01 WG1850895 (S) 4-Bromofluorobenzene 101 77.0-126 04/18/2022 14:38 WG1850232 (S) 4-Bromofluorobenzene 107 77.0-126 04/21/2022 01:01 WG1850895 (S) 1,2-Dichloroethane-d4 116 70.0-130 04/18/2022 14:38 WG1850232 (S) 1,2-Dichloroethane-d4 97.2 70.0-130 04/21/2022 01:01 WG1850895 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 27 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 27 of 47 SAMPLE RESULTS - 12 L1482562 MW-16 Collected date/time: 04/13/22 09:40 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 04/18/2022 14:57 WG1850232 1,1,1-Trichloroethane U 0.149 1.00 1 04/18/2022 14:57 WG1850232 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 04/18/2022 14:57 WG1850232 1,1,2-Trichloroethane U 0.158 1.00 1 04/18/2022 14:57 WG1850232 1,1-Dichloroethane U 0.100 1.00 1 04/18/2022 14:57 WG1850232 1,1-Dichloroethene U 0.188 1.00 1 04/18/2022 14:57 WG1850232 1,1-Dichloropropene U 0.142 1.00 1 04/18/2022 14:57 WG1850232 1,2,3-Trichlorobenzene U 0.230 1.00 1 04/18/2022 14:57 WG1850232 1,2,3-Trichloropropane U 0.237 2.50 1 04/18/2022 14:57 WG1850232 1,2,4-Trichlorobenzene U 0.481 1.00 1 04/18/2022 14:57 WG1850232 1,2,4-Trimethylbenzene U 0.322 1.00 1 04/18/2022 14:57 WG1850232 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 04/18/2022 14:57 WG1850232 1,2-Dibromoethane U 0.126 1.00 1 04/18/2022 14:57 WG1850232 1,2-Dichlorobenzene U 0.107 1.00 1 04/18/2022 14:57 WG1850232 1,2-Dichloroethane U 0.0819 1.00 1 04/18/2022 14:57 WG1850232 1,2-Dichloropropane U 0.149 1.00 1 04/18/2022 14:57 WG1850232 1,3,5-Trimethylbenzene U 0.104 1.00 1 04/18/2022 14:57 WG1850232 1,3-Dichlorobenzene U 0.110 1.00 1 04/18/2022 14:57 WG1850232 1,3-Dichloropropane U 0.110 1.00 1 04/18/2022 14:57 WG1850232 1,4-Dichlorobenzene U 0.120 1.00 1 04/18/2022 14:57 WG1850232 2,2-Dichloropropane U 0.161 1.00 1 04/18/2022 14:57 WG1850232 2-Butanone (MEK)U 1.19 10.0 1 04/18/2022 14:57 WG1850232 2-Chlorotoluene U 0.106 1.00 1 04/18/2022 14:57 WG1850232 4-Chlorotoluene U 0.114 1.00 1 04/18/2022 14:57 WG1850232 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 1 04/18/2022 14:57 WG1850232 Acetone U 11.3 50.0 1 04/18/2022 14:57 WG1850232 Acrolein U J4 2.54 50.0 1 04/18/2022 14:57 WG1850232 Acrylonitrile U 0.671 10.0 1 04/18/2022 14:57 WG1850232 Benzene U 0.0941 1.00 1 04/18/2022 14:57 WG1850232 Bromobenzene U 0.118 1.00 1 04/18/2022 14:57 WG1850232 Bromodichloromethane U 0.136 1.00 1 04/18/2022 14:57 WG1850232 Bromoform U 0.129 1.00 1 04/18/2022 14:57 WG1850232 Bromomethane U 0.605 5.00 1 04/18/2022 14:57 WG1850232 Carbon tetrachloride U 0.128 1.00 1 04/18/2022 14:57 WG1850232 Chlorobenzene U 0.116 1.00 1 04/18/2022 14:57 WG1850232 Chlorodibromomethane U 0.140 1.00 1 04/18/2022 14:57 WG1850232 Chloroethane U 0.192 5.00 1 04/18/2022 14:57 WG1850232 Chloroform U 0.111 5.00 1 04/18/2022 14:57 WG1850232 Chloromethane U 0.960 2.50 1 04/18/2022 14:57 WG1850232 Dichlorodifluoromethane U 0.374 5.00 1 04/18/2022 14:57 WG1850232 Ethanol U 42.0 100 1 04/21/2022 01:22 WG1850895 Ethyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:57 WG1850232 Ethylbenzene U 0.137 1.00 1 04/18/2022 14:57 WG1850232 Hexachloro-1,3-butadiene U 0.337 1.00 1 04/18/2022 14:57 WG1850232 Di-isopropyl ether U 0.105 1.00 1 04/18/2022 14:57 WG1850232 Isopropylbenzene U 0.105 1.00 1 04/18/2022 14:57 WG1850232 Methyl tert-butyl ether U 0.101 1.00 1 04/18/2022 14:57 WG1850232 Methylene Chloride U 0.430 5.00 1 04/18/2022 14:57 WG1850232 Naphthalene U 1.00 5.00 1 04/18/2022 14:57 WG1850232 Styrene U 0.118 1.00 1 04/18/2022 14:57 WG1850232 Tetrachloroethene U 0.300 1.00 1 04/18/2022 14:57 WG1850232 Toluene U 0.278 1.00 1 04/18/2022 14:57 WG1850232 Trichloroethene U 0.190 1.00 1 04/18/2022 14:57 WG1850232 Trichlorofluoromethane U 0.160 5.00 1 04/18/2022 14:57 WG1850232 Vinyl chloride U 0.234 1.00 1 04/18/2022 14:57 WG1850232 cis-1,2-Dichloroethene U 0.126 1.00 1 04/18/2022 14:57 WG1850232 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 28 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 28 of 47 SAMPLE RESULTS - 12 L1482562 MW-16 Collected date/time: 04/13/22 09:40 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time m&p-Xylenes U 0.430 2.00 1 04/18/2022 14:57 WG1850232 n-Butylbenzene U 0.157 1.00 1 04/18/2022 14:57 WG1850232 n-Propylbenzene U J4 0.0993 1.00 1 04/18/2022 14:57 WG1850232 o-Xylene U 0.174 1.00 1 04/18/2022 14:57 WG1850232 p-Isopropyltoluene 0.217 J 0.120 1.00 1 04/18/2022 14:57 WG1850232 sec-Butylbenzene U 0.125 1.00 1 04/18/2022 14:57 WG1850232 tert-Butyl alcohol U 4.06 5.00 1 04/18/2022 14:57 WG1850232 tert-Butyl Formate U 4.51 20.0 1 04/21/2022 01:22 WG1850895 tert-Butylbenzene U 0.127 1.00 1 04/18/2022 14:57 WG1850232 trans-1,2-Dichloroethene U 0.149 1.00 1 04/18/2022 14:57 WG1850232 (S) Toluene-d8 103 80.0-120 04/18/2022 14:57 WG1850232 (S) Toluene-d8 108 80.0-120 04/21/2022 01:22 WG1850895 (S) 4-Bromofluorobenzene 101 77.0-126 04/18/2022 14:57 WG1850232 (S) 4-Bromofluorobenzene 102 77.0-126 04/21/2022 01:22 WG1850895 (S) 1,2-Dichloroethane-d4 115 70.0-130 04/18/2022 14:57 WG1850232 (S) 1,2-Dichloroethane-d4 97.2 70.0-130 04/21/2022 01:22 WG1850895 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 29 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 29 of 47 QUALITY CONTROL SUMMARYWG1849538 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-01,02,03,04,07,09 Method Blank (MB) (MB) R3782398-3 04/18/22 09:21 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 1,1,2-Trichloroethane U 0.158 1.00 1,1-Dichloroethane U 0.100 1.00 1,1-Dichloroethene U 0.188 1.00 1,1-Dichloropropene U 0.142 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trichlorobenzene U 0.481 1.00 1,2,4-Trimethylbenzene U 0.322 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,2-Dichloroethane U 0.0819 1.00 1,2-Dichloropropane U 0.149 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,3-Dichloropropane U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 2,2-Dichloropropane U 0.161 1.00 2-Butanone (MEK)U 1.19 10.0 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 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 Bromomethane U 0.605 5.00 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 Dichlorodifluoromethane U 0.374 5.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 30 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 30 of 47 QUALITY CONTROL SUMMARYWG1849538 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-01,02,03,04,07,09 Method Blank (MB) (MB) R3782398-3 04/18/22 09:21 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Ethanol U 42.0 100 Ethyl tert-butyl ether U 0.101 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Di-isopropyl ether U 0.105 1.00 Isopropylbenzene U 0.105 1.00 Methyl tert-butyl ether U 0.101 1.00 Methylene Chloride U 0.430 5.00 Naphthalene U 1.00 5.00 Styrene U 0.118 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 Vinyl chloride U 0.234 1.00 cis-1,2-Dichloroethene U 0.126 1.00 m&p-Xylenes U 0.430 2.00 n-Butylbenzene U 0.157 1.00 n-Propylbenzene U 0.0993 1.00 o-Xylene U 0.174 1.00 p-Isopropyltoluene U 0.120 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butyl alcohol U 4.06 5.00 tert-Butyl formate U 4.51 20.0 tert-Butylbenzene U 0.127 1.00 trans-1,2-Dichloroethene U 0.149 1.00 (S) Toluene-d8 109 80.0-120 (S) 4-Bromofluorobenzene 108 77.0-126 (S) 1,2-Dichloroethane-d4 86.9 70.0-130 Laboratory Control Sample (LCS) (LCS) R3782398-1 04/18/22 07:58 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l %% 1,1,1,2-Tetrachloroethane 5.00 5.64 113 75.0-125 1,1,1-Trichloroethane 5.00 5.24 105 73.0-124 1,1,2,2-Tetrachloroethane 5.00 3.72 74.4 65.0-130 1,1,2-Trichloroethane 5.00 5.36 107 80.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 31 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 31 of 47 QUALITY CONTROL SUMMARYWG1849538 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-01,02,03,04,07,09 Laboratory Control Sample (LCS) (LCS) R3782398-1 04/18/22 07:58 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l %% 1,1-Dichloroethane 5.00 4.25 85.0 70.0-126 1,1-Dichloroethene 5.00 4.97 99.4 71.0-124 1,1-Dichloropropene 5.00 4.92 98.4 74.0-126 1,2,3-Trichlorobenzene 5.00 5.62 112 50.0-138 1,2,3-Trichloropropane 5.00 4.91 98.2 73.0-130 1,2,4-Trichlorobenzene 5.00 5.24 105 57.0-137 1,2,4-Trimethylbenzene 5.00 4.31 86.2 76.0-121 1,2-Dibromo-3-Chloropropane 5.00 5.88 118 58.0-134 1,2-Dibromoethane 5.00 5.71 114 80.0-122 1,2-Dichlorobenzene 5.00 4.76 95.2 79.0-121 1,2-Dichloroethane 5.00 4.49 89.8 70.0-128 1,2-Dichloropropane 5.00 4.65 93.0 77.0-125 1,3,5-Trimethylbenzene 5.00 4.32 86.4 76.0-122 1,3-Dichlorobenzene 5.00 4.70 94.0 79.0-120 1,3-Dichloropropane 5.00 5.21 104 80.0-120 1,4-Dichlorobenzene 5.00 4.69 93.8 79.0-120 2,2-Dichloropropane 5.00 4.78 95.6 58.0-130 2-Butanone (MEK)25.0 23.8 95.2 44.0-160 2-Chlorotoluene 5.00 4.09 81.8 76.0-123 4-Chlorotoluene 5.00 3.95 79.0 75.0-122 4-Methyl-2-pentanone (MIBK) 25.0 22.7 90.8 68.0-142 Acetone 25.0 18.0 72.0 19.0-160 Acrolein 25.0 11.8 47.2 10.0-160 Acrylonitrile 25.0 22.9 91.6 55.0-149 Benzene 5.00 4.47 89.4 70.0-123 Bromobenzene 5.00 3.65 73.0 73.0-121 Bromodichloromethane 5.00 5.14 103 75.0-120 Bromoform 5.00 6.33 127 68.0-132 Bromomethane 5.00 3.94 78.8 10.0-160 Carbon tetrachloride 5.00 5.23 105 68.0-126 Chlorobenzene 5.00 5.32 106 80.0-121 Chlorodibromomethane 5.00 6.28 126 77.0-125 J4 Chloroethane 5.00 3.33 66.6 47.0-150 Chloroform 5.00 4.97 99.4 73.0-120 Chloromethane 5.00 3.86 77.2 41.0-142 Dichlorodifluoromethane 5.00 4.65 93.0 51.0-149 ethanol 250 211 84.4 10.0-160 Ethyl tert-butyl ether 5.00 4.44 88.8 63.0-138 Ethylbenzene 5.00 5.10 102 79.0-123 Hexachloro-1,3-butadiene 5.00 5.39 108 54.0-138 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 32 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 32 of 47 QUALITY CONTROL SUMMARYWG1849538 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-01,02,03,04,07,09 Laboratory Control Sample (LCS) (LCS) R3782398-1 04/18/22 07:58 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Di-isopropyl ether 5.00 4.26 85.2 58.0-138 Isopropylbenzene 5.00 5.03 101 76.0-127 Methyl tert-butyl ether 5.00 5.31 106 68.0-125 Methylene Chloride 5.00 4.72 94.4 67.0-120 Naphthalene 5.00 5.69 114 54.0-135 Styrene 5.00 4.44 88.8 73.0-130 Tetrachloroethene 5.00 6.04 121 72.0-132 Toluene 5.00 4.78 95.6 79.0-120 Trichloroethene 5.00 6.42 128 78.0-124 J4 Trichlorofluoromethane 5.00 4.37 87.4 59.0-147 Vinyl chloride 5.00 3.55 71.0 67.0-131 cis-1,2-Dichloroethene 5.00 4.96 99.2 73.0-120 m&p-Xylenes 10.0 10.3 103 80.0-122 n-Butylbenzene 5.00 3.71 74.2 73.0-125 n-Propylbenzene 5.00 3.88 77.6 77.0-124 o-Xylene 5.00 5.07 101 80.0-122 p-Isopropyltoluene 5.00 4.29 85.8 76.0-125 sec-Butylbenzene 5.00 4.18 83.6 75.0-125 tert-Butyl alcohol 25.0 18.9 75.6 27.0-160 tert-Butylbenzene 5.00 4.58 91.6 76.0-124 trans-1,2-Dichloroethene 5.00 5.05 101 73.0-120 (S) Toluene-d8 107 80.0-120 (S) 4-Bromofluorobenzene 107 77.0-126 (S) 1,2-Dichloroethane-d4 88.6 70.0-130 Laboratory Control Sample (LCS) (LCS) R3782398-2 04/18/22 08:40 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l %% tert-Butyl Formate 100 115 115 10.0-160 (S) Toluene-d8 107 80.0-120 (S) 4-Bromofluorobenzene 109 77.0-126 (S) 1,2-Dichloroethane-d4 90.4 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 33 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 33 of 47 QUALITY CONTROL SUMMARYWG1850232 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-11,12 Method Blank (MB) (MB) R3782533-3 04/18/22 11:58 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 1,1,2-Trichloroethane U 0.158 1.00 1,1-Dichloroethane U 0.100 1.00 1,1-Dichloroethene U 0.188 1.00 1,1-Dichloropropene U 0.142 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trichlorobenzene U 0.481 1.00 1,2,4-Trimethylbenzene U 0.322 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,2-Dichloroethane U 0.0819 1.00 1,2-Dichloropropane U 0.149 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,3-Dichloropropane U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 2,2-Dichloropropane U 0.161 1.00 2-Butanone (MEK)U 1.19 10.0 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 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 Bromomethane U 0.605 5.00 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 Dichlorodifluoromethane U 0.374 5.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 34 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 34 of 47 QUALITY CONTROL SUMMARYWG1850232 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-11,12 Method Blank (MB) (MB) R3782533-3 04/18/22 11:58 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Ethyl tert-butyl ether U 0.101 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Di-isopropyl ether U 0.105 1.00 Isopropylbenzene U 0.105 1.00 Methyl tert-butyl ether U 0.101 1.00 Methylene Chloride U 0.430 5.00 Naphthalene U 1.00 5.00 Styrene U 0.118 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 Vinyl chloride U 0.234 1.00 cis-1,2-Dichloroethene U 0.126 1.00 m&p-Xylenes U 0.430 2.00 n-Butylbenzene U 0.157 1.00 n-Propylbenzene U 0.0993 1.00 o-Xylene U 0.174 1.00 p-Isopropyltoluene U 0.120 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butyl alcohol U 4.06 5.00 tert-Butylbenzene U 0.127 1.00 trans-1,2-Dichloroethene U 0.149 1.00 (S) Toluene-d8 103 80.0-120 (S) 4-Bromofluorobenzene 102 77.0-126 (S) 1,2-Dichloroethane-d4 114 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3782533-1 04/18/22 11:00 • (LCSD) R3782533-2 04/18/22 11:19 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 %%%%% 1,1,1,2-Tetrachloroethane 5.00 5.34 5.27 107 105 75.0-125 1.32 20 1,1,1-Trichloroethane 5.00 5.51 5.44 110 109 73.0-124 1.28 20 1,1,2,2-Tetrachloroethane 5.00 4.57 4.03 91.4 80.6 65.0-130 12.6 20 1,1,2-Trichloroethane 5.00 5.13 5.14 103 103 80.0-120 0.195 20 1,1-Dichloroethane 5.00 4.81 4.77 96.2 95.4 70.0-126 0.835 20 1,1-Dichloroethene 5.00 5.15 4.86 103 97.2 71.0-124 5.79 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 35 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 35 of 47 QUALITY CONTROL SUMMARYWG1850232 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-11,12 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3782533-1 04/18/22 11:00 • (LCSD) R3782533-2 04/18/22 11:19 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-Dichloropropene 5.00 4.90 4.60 98.0 92.0 74.0-126 6.32 20 1,2,3-Trichlorobenzene 5.00 4.09 3.58 81.8 71.6 50.0-138 13.3 20 1,2,3-Trichloropropane 5.00 5.14 4.55 103 91.0 73.0-130 12.2 20 1,2,4-Trichlorobenzene 5.00 4.11 3.58 82.2 71.6 57.0-137 13.8 20 1,2,4-Trimethylbenzene 5.00 5.35 4.90 107 98.0 76.0-121 8.78 20 1,2-Dibromo-3-Chloropropane 5.00 4.98 4.66 99.6 93.2 58.0-134 6.64 20 1,2-Dibromoethane 5.00 5.35 5.47 107 109 80.0-122 2.22 20 1,2-Dichlorobenzene 5.00 5.12 4.85 102 97.0 79.0-121 5.42 20 1,2-Dichloroethane 5.00 5.14 5.31 103 106 70.0-128 3.25 20 1,2-Dichloropropane 5.00 4.97 4.86 99.4 97.2 77.0-125 2.24 20 1,3,5-Trimethylbenzene 5.00 4.81 3.98 96.2 79.6 76.0-122 18.9 20 1,3-Dichlorobenzene 5.00 5.34 4.68 107 93.6 79.0-120 13.2 20 1,3-Dichloropropane 5.00 4.91 4.75 98.2 95.0 80.0-120 3.31 20 1,4-Dichlorobenzene 5.00 5.20 4.71 104 94.2 79.0-120 9.89 20 2,2-Dichloropropane 5.00 6.03 5.70 121 114 58.0-130 5.63 20 2-Butanone (MEK)25.0 27.8 29.1 111 116 44.0-160 4.57 20 2-Chlorotoluene 5.00 4.73 3.94 94.6 78.8 76.0-123 18.2 20 4-Chlorotoluene 5.00 5.20 4.45 104 89.0 75.0-122 15.5 20 4-Methyl-2-pentanone (MIBK) 25.0 27.0 27.7 108 111 68.0-142 2.56 20 Acetone 25.0 28.2 31.9 113 128 19.0-160 12.3 27 Acrolein 25.0 47.1 49.3 188 197 10.0-160 J4 J4 4.56 26 Acrylonitrile 25.0 19.3 22.2 77.2 88.8 55.0-149 14.0 20 Benzene 5.00 5.04 4.85 101 97.0 70.0-123 3.84 20 Bromobenzene 5.00 4.26 3.66 85.2 73.2 73.0-121 15.2 20 Bromodichloromethane 5.00 5.13 5.09 103 102 75.0-120 0.783 20 Bromoform 5.00 5.09 5.22 102 104 68.0-132 2.52 20 Bromomethane 5.00 4.65 4.54 93.0 90.8 10.0-160 2.39 25 Carbon tetrachloride 5.00 5.55 5.45 111 109 68.0-126 1.82 20 Chlorobenzene 5.00 5.22 5.01 104 100 80.0-121 4.11 20 Chlorodibromomethane 5.00 5.14 5.30 103 106 77.0-125 3.07 20 Chloroethane 5.00 4.54 4.43 90.8 88.6 47.0-150 2.45 20 Chloroform 5.00 5.03 4.98 101 99.6 73.0-120 0.999 20 Chloromethane 5.00 4.08 4.10 81.6 82.0 41.0-142 0.489 20 Dichlorodifluoromethane 5.00 5.10 5.14 102 103 51.0-149 0.781 20 Ethyl tert-butyl ether 5.00 5.20 5.37 104 107 63.0-138 3.22 20 Ethylbenzene 5.00 5.18 5.04 104 101 79.0-123 2.74 20 Hexachloro-1,3-butadiene 5.00 4.14 3.69 82.8 73.8 54.0-138 11.5 20 Di-isopropyl ether 5.00 4.75 4.88 95.0 97.6 58.0-138 2.70 20 Isopropylbenzene 5.00 5.16 5.07 103 101 76.0-127 1.76 20 Methyl tert-butyl ether 5.00 5.43 5.95 109 119 68.0-125 9.14 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 36 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 36 of 47 QUALITY CONTROL SUMMARYWG1850232 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-11,12 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3782533-1 04/18/22 11:00 • (LCSD) R3782533-2 04/18/22 11:19 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 %%%%% Methylene Chloride 5.00 4.97 5.19 99.4 104 67.0-120 4.33 20 Naphthalene 5.00 4.04 3.77 80.8 75.4 54.0-135 6.91 20 Styrene 5.00 4.66 4.80 93.2 96.0 73.0-130 2.96 20 Tetrachloroethene 5.00 5.43 5.14 109 103 72.0-132 5.49 20 Toluene 5.00 5.01 4.95 100 99.0 79.0-120 1.20 20 Trichloroethene 5.00 5.07 5.04 101 101 78.0-124 0.593 20 Trichlorofluoromethane 5.00 5.22 5.08 104 102 59.0-147 2.72 20 Vinyl chloride 5.00 4.54 4.61 90.8 92.2 67.0-131 1.53 20 cis-1,2-Dichloroethene 5.00 5.00 5.05 100 101 73.0-120 0.995 20 m&p-Xylenes 10.0 10.7 10.3 107 103 80.0-122 3.81 20 n-Butylbenzene 5.00 5.00 4.53 100 90.6 73.0-125 9.86 20 n-Propylbenzene 5.00 4.37 3.63 87.4 72.6 77.0-124 J4 18.5 20 o-Xylene 5.00 5.24 4.91 105 98.2 80.0-122 6.50 20 p-Isopropyltoluene 5.00 5.37 4.71 107 94.2 76.0-125 13.1 20 sec-Butylbenzene 5.00 5.44 4.94 109 98.8 75.0-125 9.63 20 tert-Butyl alcohol 25.0 19.9 22.7 79.6 90.8 27.0-160 13.1 30 tert-Butylbenzene 5.00 5.45 4.54 109 90.8 76.0-124 18.2 20 trans-1,2-Dichloroethene 5.00 4.91 4.71 98.2 94.2 73.0-120 4.16 20 (S) Toluene-d8 102 103 80.0-120 (S) 4-Bromofluorobenzene 101 104 77.0-126 (S) 1,2-Dichloroethane-d4 105 110 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 37 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 37 of 47 QUALITY CONTROL SUMMARYWG1850548 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-05,06,08,10 Method Blank (MB) (MB) R3782733-3 04/19/22 07:01 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 1,1,2-Trichloroethane U 0.158 1.00 1,1-Dichloroethane U 0.100 1.00 1,1-Dichloroethene U 0.188 1.00 1,1-Dichloropropene U 0.142 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trichlorobenzene U 0.481 1.00 1,2,4-Trimethylbenzene U 0.322 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,2-Dichloroethane U 0.0819 1.00 1,2-Dichloropropane U 0.149 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,3-Dichloropropane U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 2,2-Dichloropropane U 0.161 1.00 2-Butanone (MEK)U 1.19 10.0 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 4-Methyl-2-pentanone (MIBK) U 0.478 10.0 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 Bromomethane U 0.605 5.00 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 Dichlorodifluoromethane U 0.374 5.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 38 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 38 of 47 QUALITY CONTROL SUMMARYWG1850548 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-05,06,08,10 Method Blank (MB) (MB) R3782733-3 04/19/22 07:01 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Ethyl tert-butyl ether U 0.101 1.00 Ethylbenzene U 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Di-isopropyl ether U 0.105 1.00 Isopropylbenzene U 0.105 1.00 Methyl tert-butyl ether U 0.101 1.00 Methylene Chloride U 0.430 5.00 Naphthalene U 1.00 5.00 Styrene U 0.118 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 Vinyl chloride U 0.234 1.00 cis-1,2-Dichloroethene U 0.126 1.00 m&p-Xylenes U 0.430 2.00 n-Butylbenzene U 0.157 1.00 n-Propylbenzene U 0.0993 1.00 o-Xylene U 0.174 1.00 p-Isopropyltoluene U 0.120 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butyl alcohol U 4.06 5.00 tert-Butylbenzene U 0.127 1.00 trans-1,2-Dichloroethene U 0.149 1.00 (S) Toluene-d8 104 80.0-120 (S) 4-Bromofluorobenzene 104 77.0-126 (S) 1,2-Dichloroethane-d4 113 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3782733-1 04/19/22 06:04 • (LCSD) R3782733-2 04/19/22 06:23 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 %%%%% 1,1,1,2-Tetrachloroethane 5.00 5.51 5.50 110 110 75.0-125 0.182 20 1,1,1-Trichloroethane 5.00 5.59 5.71 112 114 73.0-124 2.12 20 1,1,2,2-Tetrachloroethane 5.00 4.90 4.63 98.0 92.6 65.0-130 5.67 20 1,1,2-Trichloroethane 5.00 5.35 5.04 107 101 80.0-120 5.97 20 1,1-Dichloroethane 5.00 5.06 5.48 101 110 70.0-126 7.97 20 1,1-Dichloroethene 5.00 4.88 5.65 97.6 113 71.0-124 14.6 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 39 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 39 of 47 QUALITY CONTROL SUMMARYWG1850548 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-05,06,08,10 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3782733-1 04/19/22 06:04 • (LCSD) R3782733-2 04/19/22 06:23 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-Dichloropropene 5.00 4.81 5.09 96.2 102 74.0-126 5.66 20 1,2,3-Trichlorobenzene 5.00 4.73 4.22 94.6 84.4 50.0-138 11.4 20 1,2,3-Trichloropropane 5.00 6.06 5.64 121 113 73.0-130 7.18 20 1,2,4-Trichlorobenzene 5.00 4.83 4.24 96.6 84.8 57.0-137 13.0 20 1,2,4-Trimethylbenzene 5.00 5.60 5.24 112 105 76.0-121 6.64 20 1,2-Dibromo-3-Chloropropane 5.00 6.30 5.60 126 112 58.0-134 11.8 20 1,2-Dibromoethane 5.00 5.48 5.53 110 111 80.0-122 0.908 20 1,2-Dichlorobenzene 5.00 5.61 4.96 112 99.2 79.0-121 12.3 20 1,2-Dichloroethane 5.00 5.64 5.58 113 112 70.0-128 1.07 20 1,2-Dichloropropane 5.00 5.02 5.34 100 107 77.0-125 6.18 20 1,3,5-Trimethylbenzene 5.00 5.38 5.18 108 104 76.0-122 3.79 20 1,3-Dichlorobenzene 5.00 5.45 5.05 109 101 79.0-120 7.62 20 1,3-Dichloropropane 5.00 5.11 4.92 102 98.4 80.0-120 3.79 20 1,4-Dichlorobenzene 5.00 5.47 5.02 109 100 79.0-120 8.58 20 2,2-Dichloropropane 5.00 5.98 6.24 120 125 58.0-130 4.26 20 2-Butanone (MEK)25.0 31.5 31.2 126 125 44.0-160 0.957 20 2-Chlorotoluene 5.00 5.26 4.88 105 97.6 76.0-123 7.50 20 4-Chlorotoluene 5.00 5.54 5.11 111 102 75.0-122 8.08 20 4-Methyl-2-pentanone (MIBK) 25.0 29.8 28.6 119 114 68.0-142 4.11 20 Acetone 25.0 29.6 29.3 118 117 19.0-160 1.02 27 Acrolein 25.0 41.0 46.0 164 184 10.0-160 J4 J4 11.5 26 Acrylonitrile 25.0 26.1 26.6 104 106 55.0-149 1.90 20 Benzene 5.00 5.14 5.29 103 106 70.0-123 2.88 20 Bromobenzene 5.00 4.60 4.22 92.0 84.4 73.0-121 8.62 20 Bromodichloromethane 5.00 5.43 5.20 109 104 75.0-120 4.33 20 Bromoform 5.00 5.65 5.50 113 110 68.0-132 2.69 20 Bromomethane 5.00 4.76 4.99 95.2 99.8 10.0-160 4.72 25 Carbon tetrachloride 5.00 5.47 5.85 109 117 68.0-126 6.71 20 Chlorobenzene 5.00 5.35 5.36 107 107 80.0-121 0.187 20 Chlorodibromomethane 5.00 5.41 5.32 108 106 77.0-125 1.68 20 Chloroethane 5.00 4.49 4.73 89.8 94.6 47.0-150 5.21 20 Chloroform 5.00 5.28 5.49 106 110 73.0-120 3.90 20 Chloromethane 5.00 4.13 4.33 82.6 86.6 41.0-142 4.73 20 Dichlorodifluoromethane 5.00 5.30 5.50 106 110 51.0-149 3.70 20 Ethyl tert-butyl ether 5.00 5.59 5.63 112 113 63.0-138 0.713 20 Ethylbenzene 5.00 5.45 5.49 109 110 79.0-123 0.731 20 Hexachloro-1,3-butadiene 5.00 4.35 3.97 87.0 79.4 54.0-138 9.13 20 Di-isopropyl ether 5.00 4.92 4.92 98.4 98.4 58.0-138 0.000 20 Isopropylbenzene 5.00 5.37 5.58 107 112 76.0-127 3.84 20 Methyl tert-butyl ether 5.00 6.23 6.15 125 123 68.0-125 1.29 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 40 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 40 of 47 QUALITY CONTROL SUMMARYWG1850548 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-05,06,08,10 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3782733-1 04/19/22 06:04 • (LCSD) R3782733-2 04/19/22 06:23 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 %%%%% Methylene Chloride 5.00 5.71 5.85 114 117 67.0-120 2.42 20 Naphthalene 5.00 5.30 4.76 106 95.2 54.0-135 10.7 20 Styrene 5.00 5.01 5.03 100 101 73.0-130 0.398 20 Tetrachloroethene 5.00 5.25 5.31 105 106 72.0-132 1.14 20 Toluene 5.00 5.09 5.15 102 103 79.0-120 1.17 20 Trichloroethene 5.00 5.36 5.57 107 111 78.0-124 3.84 20 Trichlorofluoromethane 5.00 5.23 5.58 105 112 59.0-147 6.48 20 Vinyl chloride 5.00 4.69 5.02 93.8 100 67.0-131 6.80 20 cis-1,2-Dichloroethene 5.00 5.49 5.48 110 110 73.0-120 0.182 20 m&p-Xylenes 10.0 10.9 11.0 109 110 80.0-122 0.913 20 n-Butylbenzene 5.00 4.73 4.59 94.6 91.8 73.0-125 3.00 20 n-Propylbenzene 5.00 4.60 4.41 92.0 88.2 77.0-124 4.22 20 o-Xylene 5.00 5.51 5.57 110 111 80.0-122 1.08 20 p-Isopropyltoluene 5.00 5.38 5.00 108 100 76.0-125 7.32 20 sec-Butylbenzene 5.00 5.45 5.25 109 105 75.0-125 3.74 20 tert-Butyl alcohol 25.0 18.6 24.9 74.4 99.6 27.0-160 29.0 30 tert-Butylbenzene 5.00 5.56 5.30 111 106 76.0-124 4.79 20 trans-1,2-Dichloroethene 5.00 5.02 5.40 100 108 73.0-120 7.29 20 (S) Toluene-d8 101 99.5 80.0-120 (S) 4-Bromofluorobenzene 103 105 77.0-126 (S) 1,2-Dichloroethane-d4 115 115 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 41 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 41 of 47 QUALITY CONTROL SUMMARYWG1850895 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-11,12 Method Blank (MB) (MB) R3783394-4 04/21/22 00:22 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Ethanol U 42.0 100 tert-Butyl formate U 4.51 20.0 (S) Toluene-d8 109 80.0-120 (S) 4-Bromofluorobenzene 105 77.0-126 (S) 1,2-Dichloroethane-d4 96.1 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3783394-1 04/20/22 22:59 • (LCSD) R3783394-2 04/20/22 23:19 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 %%%%% ethanol 250 224 234 89.6 93.6 10.0-160 4.37 30 (S) Toluene-d8 107 108 80.0-120 (S) 4-Bromofluorobenzene 104 106 77.0-126 (S) 1,2-Dichloroethane-d4 100 98.0 70.0-130 Laboratory Control Sample (LCS) (LCS) R3783394-3 04/20/22 23:40 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l %% tert-Butyl Formate 100 92.7 92.7 10.0-160 (S) Toluene-d8 106 80.0-120 (S) 4-Bromofluorobenzene 106 77.0-126 (S) 1,2-Dichloroethane-d4 96.5 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 42 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 42 of 47 QUALITY CONTROL SUMMARYWG1850998 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1482562-05,06,08,10 Method Blank (MB) (MB) R3783267-4 04/20/22 08:56 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Ethanol U 42.0 100 tert-Butyl formate U 4.51 20.0 (S) Toluene-d8 115 80.0-120 (S) 4-Bromofluorobenzene 90.4 77.0-126 (S) 1,2-Dichloroethane-d4 103 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3783267-1 04/20/22 07:30 • (LCSD) R3783267-2 04/20/22 07:51 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 %%%%% ethanol 250 252 317 101 127 10.0-160 22.8 30 (S) Toluene-d8 110 110 80.0-120 (S) 4-Bromofluorobenzene 90.3 91.8 77.0-126 (S) 1,2-Dichloroethane-d4 106 105 70.0-130 Laboratory Control Sample (LCS) (LCS) R3783267-3 04/20/22 08:12 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte ug/l ug/l %% tert-Butyl Formate 100 179 179 10.0-160 J4 (S) Toluene-d8 111 80.0-120 (S) 4-Bromofluorobenzene 92.4 77.0-126 (S) 1,2-Dichloroethane-d4 94.9 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 43 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 43 of 47 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. 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 C4 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low. Data is likely to show a low bias concerning the result. J The identification of the analyte is acceptable; the reported value is an estimate. J4 The associated batch QC was outside the established quality control range for accuracy. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 44 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 44 of 47 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: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/21/22 09:23 45 of 47 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 (A)L1482562 04/22/22 09:45 45 of 47 APPENDIX E SOIL GAS SAMPLING TEST RESULTS LETTER REPORT May 3, 2022 Mr. Chuck Chiara Speedway, LLC 500 Speedway Drive Enon, OH 45323 Reference: SOIL GAS SAMPLING TEST RESULTS SPEEDWAY 8299 291 NC HIGHWAY 42 EAST CLAYTON, NORTH CAROLINA INCIDENT NO.: 42007 FACILITY ID NO.: 0-036192 MID-ATLANTIC JOB NO.: R2826.15 Dear Mr. Chiara: As requested, Mid-Atlantic has conducted sub-slab soil gas testing for the above-referenced site. The procedures and results are outlined below. VAPOR SAMPLING POINT INSTALLATION AND SAMPLING On February 24, 2022, two drill holes (SSSG-1 and SSSG-2) were advanced in the floor of the supply room (eastern side of the building) to support the installation of vapor sampling equipment at these locations, shown on the attached drawing. The locations were chosen to provide sample collection directly over the area where free product is likely to be present on the water table. New “Vapor Pins™” were installed at each location. These pins consist of a brass barb fitting with a silicone sleeve to create a seal with the concrete when inserted using an installation/extraction tool. Once installed, samples were collected into a Tedlar bag and submitted to Pace National laboratory in Mt. Juliet, Tennessee for BTEX analysis using Method 18. A photoionization detector (PID) was also utilized to measure VOC concentrations in sub-slab vapor. Additional details regarding the installation and sampling procedures are provided in Mid-Atlantic’s field notes in Attachment A. INVESTIGATIVE RESULTS PID readings for sample SSSG-1 (southern sample) and SSSG-2 (northern sample) were 7.6 ppm and 3.4 ppm, respectively. The laboratory analytical report is provided in Attachment B and results are summarized on the NCDEQ Risk Calculator, provided in Attachment C. [Note: the UST Section currently does not have established standards for soil gas concentrations. Therefore, for this exercise we have adopted the Superfund Section’s methodology for determining risk.] According to the Risk Calculator calculations for the sample SSSG-2, two compounds (benzene and ethylbenzene) exhibited Calculated Carcinogenic Risk concentrations exceeding their initial screening levels. Soil Gas Sampling Results May 3, 2022 Speedway 8299 Page 2 Clayton, North Carolina However, actual risk is based on a Cumulative Carcinogenic Risk of 10-4 and the Cumulative Carcinogenic Risk for this sample is 6.6X10-6, which is a factor of two less than the acceptable risk benchmark. Sample SSSG-1 did not exhibit target compounds at concentrations exceeding the Calculated Carcinogenic Risk benchmark. Neither sample exhibited target compounds at concentrations exceeding the Hazard Index (1.0), which is a summation of the Calculated Non- Carcinogenic Hazard Quotient. CONCLUSIONS Based on the results of the sampling and comparison to DEQ risk benchmarks, the soil gas beneath the building’s floor slab does not appear to pose an unacceptable risk to the occupants of the building. If you have any questions, please feel free to contact us at (919) 250-9918. Sincerely, MID-ATLANTIC ASSOCIATES, INC. Raymond S. Marchant, III, P.G. Daniel H. Nielsen, P.E. Principal Geologist Principal Engineer Attachments: Drawing – Sub-Slab Soil Gas Sampling Point Locations A – Mid-Atlantic Field Notes B – Laboratory Analytical Report and Chain of Custody Record C – NCDEQ Risk Calculator Results DRAWING JIE ATTACHMENT A Field Notes Project Info Field Tech: Kevin Clay Date: 2/24/2022 Project Name: Speedway 8299 Images/Notes Page 1 of 3 Page 2 of 3 Notes : Meet with Gary and Trey at 815. Discuss plan and select sample locations. Storage room on eastern side of building selected for sample locations since the room had exposed concrete floors. One permanent pin was set in the southern portion of the room adjacent to an electrical panel (SSSG-1) and the other was set in the northern portion of the room adjacent to a refrigerator (SSSG-2). Both pins were installed using a hammer drill. The upper approximately 2 inches of floor were drilled using a 1.5-inch diameter spline bit. The remaining approximately 5 inches of floor were drilled using a 5/8-inch bit to a depth beneath the floor. A brass pin was set in the hole and a cap and stainless steel cover were installed to protect the point. At each point 240 mL of air were purged from the points using a 60 mL syringe. Following that, air samples were collected at each point by purging 600 mL into a tedlar bag. The bags were placed into a cooler and later provided to a courier affiliated with Pace National. Following installation and sampling, the points were connected to a MiniRAE 3000 PID. The PID increased to a reading of 7.6 ppm at SSSG-1 and 3.4 ppm at SSSG-2. The cap and cover were set at both points once finished. Kim, the store manager, looked in the storage room and not raise concerns about the sample locations (which were confirmed prior to installation) or appearance of the points once installed. Page 3 of 3 ATTACHMENT B ANALYTICAL REPORT February 28, 2022 Mid-Atlantic - Speedway NC Sample Delivery Group:L1465028 Samples Received:02/25/2022 Project Number:R2826.15 Description:Speedway 8299 Site:8299 Report To:Mr. Trey Marchant 409 Rogers View Court Raleigh, NC 27610 Entire Report Reviewed By: February 28, 2022 [Preliminary Report] T. Alan Harvill 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: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 1 of 10 March 01, 2022 T. Alan Harvill Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 1 of 10 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SSSG-1 L1465028-01 5 SSSG-2 L1465028-02 6 Qc: Quality Control Summary 7 Volatile Organic Compounds (MS) by Method M18-Mod 7 Gl: Glossary of Terms 8 Al: Accreditations & Locations 9 Sc: Sample Chain of Custody 10 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 2 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 2 of 10 SAMPLE SUMMARY Collected by Collected date/time Received date/time SSSG-1 L1465028-01 Air Kevin Clay 02/24/22 10:21 02/25/22 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (MS) by Method M18-Mod WG1823695 1 02/25/22 16:08 02/25/22 16:08 DAH Mt. Juliet, TN Collected by Collected date/time Received date/time SSSG-2 L1465028-02 Air Kevin Clay 02/24/22 10:31 02/25/22 09:30 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (MS) by Method M18-Mod WG1823695 1 02/25/22 15:27 02/25/22 15:27 DAH Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 3 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 3 of 10 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] T. Alan Harvill Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 4 of 10 T. Alan Harvill Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 4 of 10 SAMPLE RESULTS - 01 L1465028 SSSG-1 Collected date/time: 02/24/22 10:21 Volatile Organic Compounds (MS) by Method M18-Mod CAS # Mol. Wt. RDL1 RDL2 Result Result Qualifier Dilution Batch Analyte ppbv ug/m3 ppbv ug/m3 Benzene 71-43-2 78.10 0.200 0.639 2.28 7.28 1 WG1823695 Toluene 108-88-3 92.10 0.500 1.88 10.5 39.6 1 WG1823695 Ethylbenzene 100-41-4 106 0.200 0.867 1.90 8.24 1 WG1823695 m&p-Xylene 1330-20-7 106 0.400 1.73 5.11 22.2 1 WG1823695 o-Xylene 95-47-6 106 0.200 0.867 4.61 20.0 1 WG1823695 Methyl tert-butyl ether 1634-04-4 88.10 0.200 0.721 3.57 12.9 1 WG1823695 TPH (GC/MS) Low Fraction 8006-61-9 101 200 826 1040 4300 1 WG1823695 (S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 95.8 WG1823695 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 5 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 5 of 10 SAMPLE RESULTS - 02 L1465028 SSSG-2 Collected date/time: 02/24/22 10:31 Volatile Organic Compounds (MS) by Method M18-Mod CAS # Mol. Wt. RDL1 RDL2 Result Result Qualifier Dilution Batch Analyte ppbv ug/m3 ppbv ug/m3 Benzene 71-43-2 78.10 0.200 0.639 0.296 0.946 1 WG1823695 Toluene 108-88-3 92.10 0.500 1.88 3.22 12.1 1 WG1823695 Ethylbenzene 100-41-4 106 0.200 0.867 1.38 5.98 1 WG1823695 m&p-Xylene 1330-20-7 106 0.400 1.73 3.31 14.4 1 WG1823695 o-Xylene 95-47-6 106 0.200 0.867 5.24 22.7 1 WG1823695 Methyl tert-butyl ether 1634-04-4 88.10 0.200 0.721 2.89 10.4 1 WG1823695 TPH (GC/MS) Low Fraction 8006-61-9 101 200 826 908 3750 1 WG1823695 (S) 1,4-Bromofluorobenzene 460-00-4 175 60.0-140 95.8 WG1823695 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 6 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 6 of 10 QUALITY CONTROL SUMMARYWG1823695 Volatile Organic Compounds (MS) by Method M18-Mod L1465028-01,02 Method Blank (MB) (MB) R3763864-3 02/25/22 08:25 MB Result MB Qualifier MB MDL MB RDL Analyte ppbv ppbv ppbv Benzene U 0.0715 0.200 Ethylbenzene U 0.0835 0.200 MTBE U 0.0647 0.200 Toluene U 0.0870 0.500 m&p-Xylene U 0.135 0.400 o-Xylene U 0.0828 0.200 TPH (GC/MS) Low Fraction U 39.7 200 (S) 1,4-Bromofluorobenzene 94.6 60.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3763864-1 02/25/22 07:03 • (LCSD) R3763864-2 02/25/22 07:45 Spike Amount LCS Result LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ppbv ppbv ppbv %%%%% MTBE 3.75 4.23 4.27 113 114 70.0-130 0.941 25 Benzene 3.75 4.03 4.04 107 108 70.0-130 0.248 25 Toluene 3.75 4.00 4.00 107 107 70.0-130 0.000 25 Ethylbenzene 3.75 4.09 4.10 109 109 70.0-130 0.244 25 m&p-Xylene 7.50 8.16 8.18 109 109 70.0-130 0.245 25 o-Xylene 3.75 3.93 3.95 105 105 70.0-130 0.508 25 TPH (GC/MS) Low Fraction 203 223 224 110 110 70.0-130 0.447 25 (S) 1,4-Bromofluorobenzene 97.1 96.2 60.0-140 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 7 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 7 of 10 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. 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 The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 8 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 8 of 10 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: Mid-Atlantic - Speedway NC R2826.15 L1465028 02/28/22 19:24 9 of 10 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Mid-Atlantic - Speedway NC R2826.15 L1465028 03/01/22 10:26 9 of 10 ATTACHMENT C Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Prepared By:Kevin Clay Trey Marchant Dan Nielsen North Carolina Department of Environmental Quality Risk Calculator Speedway 8299 291 NC-42 East, Clayton, NC 27527 SSSG-1 January 2022 November 2021 EPA RSL Table North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Soil Gas to Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: SSSG-1 Exposure Unit ID: CAS #Chemical Name: Soil Gas Concentration (ug/m3) Calculated Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 71-43-2 Benzene 7.28 0.0728 1.6E+00 2.6E+01 4.6E-08 5.5E-04 100-41-4 Ethylbenzene 8.24 0.0824 4.9E+00 8.8E+02 1.7E-08 1.9E-05 1634-04-4 Methyl tert-Butyl Ether (MTBE) 12.9 0.129 4.7E+01 2.6E+03 2.7E-09 9.8E-06 108-88-3 Toluene 39.6 0.396 - 4.4E+03 1.8E-05 108-38-3 Xylene, m- 22.2 0.222 - 8.8E+01 5.1E-04 95-47-6 Xylene, o- 20 0.2 - 8.8E+01 4.6E-04 Cumulative: 6.6E-08 1.6E-03 All concentrations are in ug/m3 Output Form 3E Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion risk, no risk values are calculated for these chemicals. North Carolina DEQ Risk Calculator Version Date: Basis: Site Name: Site Address: DEQ Section: Site ID: Exposure Unit ID: Submittal Date: Reviewed By: Prepared By:Kevin Clay Trey Marchant Dan Nielsen North Carolina Department of Environmental Quality Risk Calculator Speedway 8299 291 NC-42 East, Clayton, NC 27527 SSSG-2 January 2022 November 2021 EPA RSL Table North Carolina DEQ Risk Calculator DEQ Risk Calculator - Vapor Intrusion - Non-Residential Worker Indoor Air Version Date: January 2022 Basis: November 2021 EPA RSL Table Site ID: SSSG-2 Exposure Unit ID: CAS # Chemical Name: Indoor Air Concentration (ug/m3) Target Indoor Air Conc. for Carcinogens @ TCR = 1E-06 Target Indoor Air Conc. for Non- Carcinogens @ THQ = 0.2 Calculated Carcinogenic Risk Calculated Non- Carcinogenic Hazard Quotient 71-43-2 Benzene 7.28 1.6E+00 2.6E+01 4.6E-06 5.5E-02 100-41-4 Ethylbenzene 8.24 4.9E+00 8.8E+02 1.7E-06 1.9E-03 1634-04-4 Methyl tert-Butyl Ether (MTBE)12.9 4.7E+01 2.6E+03 2.7E-07 9.8E-04 108-88-3 Toluene 39.6 - 4.4E+03 1.8E-03 108-38-3 Xylene, m-22.2 - 8.8E+01 5.1E-02 95-47-6 Xylene, o-20 - 8.8E+01 4.6E-02 Cumulative: 6.6E-06 1.6E-01 All concentrations are in ug/m3 Output Form 3F ** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate carcinogenic risk or hazard quotient. Lead concentrations are compared to the National Ambient Air Quality Standard of 0.15 μg/m3. Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Risks are calculated for these values if indoor air concentrations are entered and indoor air screening levels have been established, but it should be noted that detections of these chemicals are likely not associated with vapor intrusion. North Carolina DEQ Risk Calculator 1 RSM PG NC