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HomeMy WebLinkAboutWS-2851_7068_CA_MRP_20230605_LSA CES Group Engineers, LLP IMPROVING. PROTECTING. RESTORING. CHARLOTTE, NC 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 COLUMBIA, SC 1411 Gervais Street, Suite 140 Columbia, SC 29201 www.ces-group.net June 5, 2023 Scott Ryals, PE Environmental Engineer North Carolina Department of Environmental Quality DWM UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 RE: Limited Site Assessment G&B Oil Co. - Sparta Incident No.: 7068 UST ID No.: WS-2851 Facility ID No.: 00-0-0000031916 1497 US-21 Sparta, Alleghany County, North Carolina 28675 Dear Mr. Ryals: CES Group Engineers, LLP (CES), while under contract with the North Carolina Department of Environmental Quality (NCDEQ), Contract No.: N040722, executed on April 20, 2022, is submitting this Limited Site Assessment to you for the aforementioned property electronically via email. The performed work was authorized by NCDEQ Task Authorization (TA) #01, approved on January 26, 2023. Should you have any questions in regards to this submittal, please do not hesitate to contact me at (704) 325-5408. Regards, Greg Hans, PMP Environmental Division Manager Enclosures: Limited Site Assessment CES Project No. 8079.0123E 1 June 5, 2023 PHASE I LIMITED SITE ASSESSMENT REPORT G&B Oil Co. - Sparta 1497 US-21 Sparta, Alleghany County, North Carolina 28675 NCDEQ Incident No.: 7068 UST ID No.: WS-2851 Facility ID No.: 00-0-0000031916 June 5, 2023 Prepared for: Mr. Scott Ryals NCDEQ DWM UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Prepared by: CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, North Carolina 28273 CES Project No. 8079.0123E 2 June 5, 2023 TABLE OF CONTENTS Page 1.0 SITE INFORMATION ................................................................................................. 4 1.1 Site Identification............................................................................................. 4 1.2 Contact Information ......................................................................................... 4 1.3 Release Information ........................................................................................ 4 1.4 Certification ..................................................................................................... 5 2.0 EXECUTIVE SUMMARY ............................................................................................ 6 3.0 SITE HISTORY AND CHARACTERIZATION ............................................................. 9 3.1 Responsible Party Information ........................................................................ 9 3.2 UST Information .............................................................................................. 9 3.3 AST Information ............................................................................................ 10 3.4 Release Description ...................................................................................... 10 3.5 Site Characteristics ....................................................................................... 10 3.6 Prior Actions ................................................................................................. 11 4.0 RISK CHARACTERIZATION .................................................................................... 12 4.1 Part I – Groundwater/Surface Water/Vapor Impacts ..................................... 12 4.2 Part II – Land Use ......................................................................................... 13 5.0 RECEPTOR INFORMATION .................................................................................... 15 5.1 Water Supply Wells ....................................................................................... 15 5.2 Public Water Supplies ................................................................................... 15 5.3 Surface Water ............................................................................................... 15 5.4 Wellhead Protection Areas ............................................................................ 15 5.5 Deep Aquifers in the Coastal Plain Physiographic Region ............................ 16 5.6 Subsurface Structures .................................................................................. 16 6.0 LAND USE ............................................................................................................... 17 6.1 Property Owners and Occupants .................................................................. 17 7.0 SITE GEOLOGY AND HYDROGEOLOGY ............................................................... 18 8.0 SAMPLING RESULTS ............................................................................................. 19 8.1 Phase I Investigation ..................................................................................... 19 9.0 CONCLUSIONS AND RECOMMENDATIONS ......................................................... 21 9.1 Conclusions and Recommendations ................................................................... 21 10.0 REFERENCES ......................................................................................................... 22 CES Project No. 8079.0123E 3 June 5, 2023 FIGURES FIGURE 1 SITE LOCATION MAP FIGURE 2 SITE MAP FIGURE 3 ESTIMATED EXTENT OF SOIL CONTAMINATION MAP FIGURE 4 GROUNDWATER ELEVATION AND ESTIMATED EXTENT OF CONTAMINATION MAP FIGURE 5 POTENTIAL RECEPTOR AND LAND USE MAP TABLES TABLE B-1 SITE HISTORY – UST/AST SYSTEM AND OTHER RELEASE INFORMATION TABLE B-2 SITE HISTORY – UST/AST OWNER/OPERATOR AND OTHER RESPONSIBLE PARTY INFORMATION TABLE B-3 SUMMARY OF SOIL ANALYTICAL RESULTS TABLE B-4 GROUNDWATER ANALYTICAL RESULTS TABLE B-5 PUBLIC AND PRIVATE WATER SUPPLY WELL AND OTHER RECEPTOR INFORMATION TABLE B-6 CONTIGUOUS PROPERTY OWNERS/OCCUPANTS TABLE B-7 MONITORING WELL CONSTRUCTION INFORMATION TABLE B-9 CURRENT GROUNDWATER ELEVATIONS APPENDICES APPENDIX A HISTORICAL DATA APPENDIX B SITE PHOTOGRAPHS APPENDIX C MONITORING FIELD DATA SHEETS, SAMPLING PROTOCOLS, JOB HAZARD ANALYSIS, AND HEALTH & SAFETY PLAN APPENDIX D SOIL AND GROUNDWATER LABORATORY REPORTS AND CHAIN-OF- CUSTODY RECORDS APPENDIX E SOIL BORING LOG, WELL PERMITS AND MONITORING WELL CONSTRUCTION RECORDS CES Project No. 8079.0123E 4 June 5, 2023 1.0 SITE INFORMATION 1.1 Site Identification Date of Report: June 5, 2023 Site Risk/Ranking: Low Facility I.D.:00-0-0000031916 UST Incident Number (if known): WS-2851 / 7068 Site Name: G&B Oil Co. - Sparta Street Address:1497 US-21 City/Town:Sparta Zip Code: 28675 County: Alleghany Description of Geographical Data Point (e.g., MW):MW-1 Location Method (GPS, topographical map, online map, other):GIS Address Matching Latitude (decimal degrees):36.49064 Longitude(decimal degrees): -81.10264 1.2 Contact Information UST/AST Owner: G&B Oil Co, Inc Email: N/A Address: 667 North Bridge Street, Elkin, NC 28621 Tel: N/A UST/AST Operator: G&B Oil Co, Inc Email: N/A Address: 1497 Highway 21 North, Sparta, NC 28675 Tel: N/A Property Owner: Lowell T. Miller Email: ltmiller@skybest.com Address: 1778 Memorial Park Drive, Sparta, NC 28675 Tel: Property Occupant: Vacant Email: N/A Address: 1497 US-21, Sparta, NC 28675 Tel: N/A Consultant/Contractor: CES Group Engineers, LLP. Email: ghans@ces-group.net Address: 3525 Whitehall Park Drive, Ste150, Charlotte, NC 28273 Tel: 704-325-5408 Analytical Laboratory: Waypoint Analytical State Certification No: 402 Address: 449 Springbrook Road, Charlotte, NC 28217 Tel: 704-529-6364 Drilling Contractor: Carolina Soil Investigations Email: keith@csieco.com Address: 132 Gurney Road, Olin, NC 28660 Tel: 704-539-5279 1.3 Release Information Date Discovered: 12/20/1990 (According to NCDEQ UST Incident Maps and available historical reports) Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release (e.g., Dispenser/Piping/UST): USTs/Dispenser/Piping Sizes and Contents of Tanks or Other Containment from which the Release Occurred:  Three 1,000-gal gasoline USTs CES Project No. 8079.0123E 5 June 5, 2023 1.4 Certification I, Charles D. Heleine, a North Carolina Licensed Professional Engineer employed by CES, do certify that the information contained in this report is accurate, to the best of my knowledge. E-Signature 05/30/2023 Charles D. Heleine, NC PE No. 27196 CES Group Engineers, LLP (CES) is licensed to practice engineering in North Carolina. The firm license number is F-1240. CES Project No. 8079.0123E 6 June 5, 2023 2.0 EXECUTIVE SUMMARY The purpose of this Phase I Limited Site Assessment (LSA) is to provide the information necessary for the North Carolina Department of Environmental Quality (NCDEQ) to evaluate the level of risk to human health and the environment resulting from the apparent release of petroleum-related constituents from the historical operation of three 1,000-gallon gasoline underground storage tanks (USTs), reportedly removed in December, 1990, located at the G&B Oil Co convenience store and gasoline service station, 1497 US-21, Sparta, Alleghany County, North Carolina (hereafter identified as the site, subject site, subject property or property). The site location, including topographic features, is depicted on Figure 1. CES Group Engineers, LLP (CES) has been authorized to perform this Limited Site Assessment by NCDEQ, represented by Scott Ryals, PE, Environmental Engineer. A Phase I LSA of the subject property was completed by CES to evaluate if soil and groundwater has been impacted at the site by the apparent release condition, and if the potential exists for nearby water supply wells and/or other receptors to be impacted. In December, 1990, a total of three 1,000-gallon gasoline USTs were reportedly removed from the site under the direction of G&B Oil Co, of Sparta, North Carolina. No further information regarding the removal and/or sampling of the removed USTs was readily available for review. However, according to two Reports of Environmental Services, prepared by Law Engineering and Environmental Services, Inc (Law), of Greensboro, North Carolina, dated February 19, 1993 and February 22, 1994, and a Response to NCDEM Letter Dated April 16, 1996, dated June 21, 1996, also prepared by Law, a total of 422-tons of contaminated soils were excavated from the area of the removed 1,000-gallon gallon gasoline USTs in 1991 (dates unknown), for offsite disposal, with one soil sample (EXC-2) collected from the base of the excavated area reporting a total petroleum hydrocarbon (TPH) concentration of 800 parts per million (ppm). Additionally, as reported by Law, a second excavation area completed in January, 1994, located beneath bulk above ground storage tanks (ASTs) that were previously removed, and located to the east-northeast of the former 1,000-gallon gasoline USTs, reported TPH concentrations below NCDEQ Action Levels. Based upon the listed date of discovery of December 20, 1990, as referenced in Section 1.3 of this report, it is presumed that NCDEQ subsequently issued Incident Number 7068 for an apparent release condition identified during the removal of the three 1,000-gallon gasoline USTs in December, 1990. The aforementioned environmental reports, prepared by Law, are included in Appendix A. Since the reported excavation of 422-tons of contaminated soils in 1991, and the assessment of the bulk ASTs in January, 1994, no further assessment, monitoring and/or remediation activities are known to have taken place at the site. Based upon a review of historical reports, which reported rock at a depth of approximately 15-feet below grade, on April 25, 2023, under the direction of CES, an air rotary drill rig was mobilized to the site to install one soil boring in the former gasoline tank grave for subsequent conversion into a 2-inch diameter permanent groundwater monitoring well to a proposed depth of 35-feet below grade. However, during drilling activities on April 25, 2023, groundwater was not encountered to a maximum boring exploration depth of 40-feet below grade utilizing the air rotary drilling equipment. At this time, per conversations with Mr. Scott Ryals, NCDEQ, the boring was terminated and it was agreed that an attempt would be made to sample perched water that was observed immediately above the rock interface at 15-feet below grade. As a result, a 1-inch diameter groundwater monitoring well was set within the bore hole to a depth of 20-feet below CES Project No. 8079.0123E 7 June 5, 2023 grade and completed with 10-feet solid riser and 10-feet schedule 40 screen. During the installation of groundwater monitoring well MW-1 on April 25, 2023, one soil sample was collected from the soil sample exhibiting the highest photoionization detector (PID) reading above the rock interface, at a depth of approximately 15-feet below grade, placed in laboratory provided vials and glassware, stored on ice, and hand delivered under chain-of-custody (COC) procedures on April 26, 2023 to Waypoint Analytical (Waypoint) of Charlotte, North Carolina (NC Certification No. 402) for laboratory analysis of VOCs by 8260, sVOCs by 8270, Metals (Pb & Cr) and VPH and EPH by MassDEP methodologies. Soil laboratory analytical results from MW-1 reported the following petroleum-related constituent concentrations above the Soil to Water Maximum Soil Contaminant Concentration (MSCC):  MW-1: 1-methylnaphthalene and 2- methylnaphthalene. Soil laboratory analytical results from MW-1 reported the following petroleum-related constituent concentrations above the Soil to Water MSCC, Residential Soil Clean Up Levels and the Industrial/Commercial MSCC:  MW-1: chromium. All other concentrations of petroleum-related constituents were reported below Soil to Water MSCC, Residential Soil Cleanup Levels and Industrial/Commercial MSCC from MW-1. On May 4, 2023, CES returned to the site to collect a perched water sample from MW-1. Prior to sample collection, depth to groundwater (DTW) measurements were recorded using a water level meter capable of detecting light non-aqueous phase liquid (LNAPL or Free Product) to an accuracy of 0.01 feet. Free product was not detected in MW-1. DTW was recorded at a depth of 14.60-feet below grade in MW-1. Groundwater samples were then collected from MW-1, placed on ice, and delivered under COC procedures to Waypoint on May 5, 2023 for analysis of VOCs by 6200B, Base/Neutrals and Acids by 625, VPH and EPH by MassDEP methodologies. It should be noted that due to low water volumes encountered in MW-1, perched water samples were not submitted for analysis of EDB by 504.1 or Metals (PB & Cr). Groundwater laboratory analytical results from MW-1 reported the following petroleum-related constituent concentrations above the 2L Standards:  MW-1: naphthalene, C9-C12 aliphatic and C9-C10 aromatic. All other concentrations of petroleum-related constituents were reported below 2L Standards from MW-1. No concentrations of petroleum-related constituents were reported above the Gross Contaminant Level (GCL) from MW-1. Municipal water distribution systems provided by the Town of Sparta serve the subject property and surrounding properties. Two water supply wells, located approximately 275-feet to the west of the site at 1467 US-21 S, and approximately 900-feet to the southeast of the site at 1606 US-21 S, were identified within 1,500-feet of the site during the receptor survey. CES Project No. 8079.0123E 8 June 5, 2023 Based upon soil concentrations reported above applicable soil standards from a soil sample collected from immediately above the rock interface, at a depth of approximately 15-feet below grade, and a perched water sample reporting concentrations above the 2L Standard, but below the GCL Standard, and with the reported presence of two water supply wells located in the general vicinity of the site, at a distance of approximately 275-feet to the west (presumed cross gradient) and 900-feet to the southeast (presumed downgradient), it is recommended that water samples be collected from these two water supply well systems and analyzed for petroleum-related constituents to evaluate the potential for the apparent release condition at the subject site to have impacted these nearby, and identified sensitive receptors. CES Project No. 8079.0123E 9 June 5, 2023 3.0 SITE HISTORY AND CHARACTERIZATION The subject site where this LSA was performed, where an apparent release of petroleum-related constituents occurred, consists of one parcel, identified as Alleghany County Parcel Identification Number (PIN) 3080147074, and is situated along the northern line of US-21, as shown on Figure 1. The site is generally located in a mixed-use area of Sparta, Alleghany County, North Carolina, with US-21 to the south, with a large tract of farmland located across the roadway, a self-storage facility to the east, single-family residences to the north, and Deer Haven Road to the west, with Andrews & Gentry Surveyors located across the roadway, and is generally situated in an area of residential, commercial, industrial and manufacturing uses. The subject property is currently a vacant lot, with no structures present, and is predominantly covered by asphalt-paved and natural vegetative surfaces. This LSA (ie, the installation of monitoring well MW-1) was performed on the east-central portion of the site, in the area of the former gasoline USTs, which were reportedly removed in December, 1990. Figure 2 depicts pertinent site features. 3.1 Responsible Party Information UST Owner/Operator: G&B Oil Co, Inc Address: 667 North Bridge Street, Elkin, NC 28621 Phone: N/A Other Person(s) Associated With USTs: (Site accepted into State-Lead Cleanup Program) Address: N/A Phone: N/A Current Property Owner: Lowell T. Miller Address: 1778 Memorial Park Drive, Sparta, NC 28675 Phone: 336-272-5292 On December 9, 2022, the site was accepted into the NCDEQ State-Lead Cleanup Program to conduct further investigative measures relative to Incident Number 7068. Additional responsible party information is provided in Table B-1 and Table B-2, and above in Section 1.2. 3.2 UST Information A general summary of the UST system is presented below, with further information included in Tables B-1 and B-2: UST ID No Current/Last Contents Capacity (gallons) Date Installed * Date Removed * Discovery of Release 1 Gasoline 1,000 1/1/1964 12/1990 Yes 2 Gasoline 1,000 1/1/1964 12/1990 Yes 3 Gasoline 1,000 1/1/1964 12/1990 Yes 4 ** Diesel Unknown 1/1/1964 Unknown Unknown 5 ** Heating Oil 270 Unknown Unknown Unknown CES Project No. 8079.0123E 10 June 5, 2023 * According to UST information retrieved from the NCDEQ UST Database. ** According to UST information retrieved from the NCDEQ UST Database, a diesel UST is listed as being installed at the site on January 1, 1964. Additionally, according to a review of historical reports, prepared by Law, a 270-gallon heating oil UST was located on the north-northeastern portion of the site, adjacent to a former structure. However, no further removal information and/or knowledge of these USTs are known to exist. 3.3 AST Information Not Applicable. No ASTs or other above ground vessels or substantial petroleum storage containers are known to exist at the site. However, according to a review of a Report of Environmental Services, prepared by Law, and dated February 22, 1994, four bulk ASTs were also removed from the site in December, 1990, with subsurface soil samples collected from beneath each of the ASTs in January, 1994, reporting concentrations below applicable state standards. 3.4 Release Description As reported in the Reports of Environmental Services, prepared by Law in February, 1993 and February, 1994, during the removal of three 1,000-gallon gasoline USTs in December, 1990, NCDEQ was notified of an apparent release to the subsurface and subsequently issued Incident Number 7068 to G&B Oil Co, LLC . Historical reports, prepared by Law, are included in Appendix A. 3.5 Site Characteristics The subject property is in an Urban Transition land classification area of Sparta, and includes one parcel, with Alleghany County Parcel Identification Number 3080147074, occupying an area of approximately 0.51-acre. According to Alleghany County GIS, Land Use of the subject property has been identified as Commercial. The adjoining property to the south of the site is US-21, with a large tract of farmland located across the roadway. The adjoining property to the east of the site is a self-storage facility. The adjoining properties to the north of the site are single-family residences. The adjoining property to the west of the site is Deer Haven Road, with Andrews and Gentry Surveyors located across the roadway. The subject property is currently vacant, with no structures present, and is primarily covered by asphalt-paved and natural vegetative surfaces. The subject site is situated along the northern line of US-21, a 2-lane, asphalt surfaced, rural section roadway. The subject site is presumably served by commercial utilities, including electrical power and telephone and potentially natural gas services. Public water distribution and sanitary sewer services provided by the Town of Sparta reportedly serve the site. CES Project No. 8079.0123E 11 June 5, 2023 3.6 Prior Actions According to a review of available reports, prior actions at the site included the removal of three 1,000-gallon gasoline USTs in December, 1990, with the excavation, removal and disposal of 422-tons of contaminated soils in 1991, and an assessment of the removed bulk ASTs in January, 1994. Since the reported excavation of 422-tons of contaminated soils in 1991 and the assessment of the bulk ASTs in January, 1994, no further assessment, monitoring and/or remediation activities are known to have taken place at the site. CES Project No. 8079.0123E 12 June 5, 2023 4.0 RISK CHARACTERIZATION 4.1 Part I – Groundwater/Surface Water/Vapor Impacts High Risk 1. Has the release contaminated any water supply well including any well used for non- drinking purposes ? NO Not to our knowledge. 2. Is a water supply well used for drinking water located within 1,000 feet of the source area of the release ? YES Two water supply wells, used for drinking water, are located approximately 275-feet to the west of the site at 1467 US-21 S, and approximately 900-feet to the southeast of the site at 1606 US-21 S. 3. Is a water supply well not used for drinking water (e.g., irrigation, washing cars, industrial cooling water, filling swimming pools) located within 250 feet of the source area of the release ? NO Not to our knowledge. 4. Does groundwater within 500 feet of the source area of the release have the potential for use (there is no other source of water supply other than the groundwater) ? NO Municipal water distribution systems are available to serve the subject property and surrounding properties. 5. Do vapors from the release pose a threat of explosion because of accumulation of the vapors in a confined space or pose any other serious threat to public health, public safety or the environment ? NO To date, and to CES’ knowledge, no known incidents of explosion threats have been reported. Intermediate Risk 6. Are there any other factors that would cause the release to pose an imminent danger to public health, public safety, or the environment ? NO 7. Is a surface water body located within 500 feet of the source area of the release ? NO CES Project No. 8079.0123E 13 June 5, 2023 8. Is the source area of the release located within an approved or planned wellhead protection area as defined in 42 USC 300h-7(e) ? NO 9. Is the release located in the Coastal Plain physiographic region as designated on a map entitled “Geology of North Carolina” published by the Department in 1985 ? NO 10. Do the levels of groundwater contamination for any contaminant exceed the gross contamination levels (See Table 2.) established by the Department ? NO 4.2 Part II – Land Use Property Containing Source Area of Release 1. Does the property contain one or more primary or secondary residences (permanent or temporary) ? NO 2. Does the property contain a school, daycare center, hospital, playground, park, recreation area, church, nursing home, or other place of public assembly ? NO 3. Does the property contain a commercial (e.g., retail, warehouse, office/business space etc.) or industrial (e.g., manufacturing, utilities, industrial research and development, chemical/petroleum bulk storage, etc.) enterprise, an inactive commercial or industrial enterprise, or is the land undeveloped ? YES The subject property is currently unoccupied and vacant, with no structures present, and previously operated as a convenience store, gasoline service station and bulk above ground storage of petroleum products. 4. Do children visit the property ? YES Children have the ability to visit the property. Is access to the property reliably restricted consistent with its use (e.g., by fences, security personnel or both) ? NO 5. Do pavement, buildings, or other structures cap the contaminated soil ? NO Currently, the area of MW-1 is located in an area of overgrown, natural vegetation. CES Project No. 8079.0123E 14 June 5, 2023 If yes, what mechanisms are in place or can be put into place to ensure that the contaminated soil will remain capped in the foreseeable future ? Not applicable. 6. What is the zoning (land classification) status of the property ? Urban Transition 7. Is the use of the property likely to change in the next 20 years ? YES According to information received from the property owner, Lowell T. Miller, the property is currently for sale, with the assumption the property will be developed from its current state of being unoccupied and vacant, with no structures present. Property Surrounding Source Area of Release 1. What is the distance from the source area of the release to the nearest primary or secondary residence (permanent or temporary) ? 125 Feet to the north-northwest 2. What is the distance from the source area of the release to the nearest school, daycare center, hospital, playground, park, recreation area, church, nursing home or other place of public assembly ? 1,000 feet to the west Little River, a potential recreation area, is located approximately 1,000-feet to the west. 3. What is the zoning (land classification) status of properties in the surrounding area ? Urban Transition Urban Developed Rural Community 4. Briefly characterize the use and activities of the land in the surrounding area. The site is generally located in a mixed-use area of Sparta, with predominantly residential, commercial, manufacturing and agricultural/farm land uses. The site is bordered to the south by US-21, on the east by a self-storage facility, on the north by single-family residences, and on the west by Deer Haven Road. CES Project No. 8079.0123E 15 June 5, 2023 5.0 RECEPTOR INFORMATION 5.1 Water Supply Wells As part of this LSA, a water supply well survey was conducted by interviewing the owner of the subject property, conducting a walking and windshield survey and sending out Request for Water Supply Well Information forms to property owners located within a 500-feet radius of the subject property. During the walking and windshield survey, no water supply wells were visually observed within 500-feet of the site. However, according to information obtained from the subject property owner, nearby and surrounding property owners, a review of NCDEQ SWAPInfo 2.0 and historical documents, and the Town of Sparta and Allegany County, two water supply wells, reportedly used for drinking water, located approximately 275-feet to the west of the site at 1467 US-21 S, and approximately 900-feet to the southeast of the site at 1606 US-21 S, were identified within 1,500- feet of the site. On May 5, 2023, CES sent out Request for Water Supply Well Information forms to the twelve properties within a 500-feet radius of the subject property. A total of six Water Supply Well Information forms were returned to CES, or information was otherwise communicated to CES, which did not report the presence of water supply wells within 500-feet radius of the site, with the exception of the water supply wells located at 1467 US-21 S and 1606 US-21 S. Table B-5 summarizes public and private water supply well information. 5.2 Public Water Supplies According to the NC SWAPInfo 2.0 Map and NC One Map - Public Water Supply Water Resources Map, no public water supply wells are known to exist within a 1,500-feet radius of the subject property. Two public water supply wells, listed as the Town of Sparta Well #18 and #19, are located approximately 2,000-feet to the southeast of the site. Additional public water supply wells exist in the Town of Sparta, at distances greater than 5,000-feet from the site. Municipal water distribution systems provided by the Town of Sparta are available to serve the subject property and surrounding properties. 5.3 Surface Water According to the NC One Map – Surface Water Classifications Map, the nearest surface water body, Little River, is located approximately 1,000-feet to the west of the site. According to the NC One Map – Surface Water Intakes Map, no surface water intakes are located within a 1,500-feet radius of the subject site. 5.4 Wellhead Protection Areas According to the NC SWAPInfo 2.0 Map and Database, no approved wellhead protection areas or plans are located in Alleghany County. CES Project No. 8079.0123E 16 June 5, 2023 5.5 Deep Aquifers in the Coastal Plain Physiographic Region Not Applicable to the subject site, as the site lies within the Blue Ridge Physiographic Region. 5.6 Subsurface Structures Underground utilities have been identified at and adjacent to the subject site, and the potential exists for soil and groundwater contamination to be in contact with these underground utilities. Perched groundwater has historically been measured at approximately 14-feet below ground surface at the site. Because the underground utilities are expected to be at a shallower depth than 14-feet, the utility lines would not be considered receptors or conduits for ground water contaminant migration. No subsurface structures have been identified at the site. Figure 5 depicts a 1,500-feet Potential Receptor Map. CES Project No. 8079.0123E 17 June 5, 2023 6.0 LAND USE 6.1 Property Owners and Occupants Land use in the vicinity of the subject property can be characterized as residential, commercial, manufacturing and agricultural/farm land uses. Based on petroleum-related constituents reported above applicable groundwater standards (2L Standard), nearby and surrounding property owners and occupants may be impacted by the apparent release from Incident Number 7068, should the contaminant plume happen to extend beyond the subject property. Table B-6 summarizes contiguous property owners and occupants. No sensitive land use features, such as schools, daycare centers, nursing homes, hospitals, playgrounds, churches, camps, or other places of assembly, have been identified within 1,500- feet of the source of the release, with the exception of Little River, a potential recreation area, located approximately 1,000-feet to the west of the site. Aerial imagery depicting land use in the general vicinity of the site is included on Figure 5. CES Project No. 8079.0123E 18 June 5, 2023 7.0 SITE GEOLOGY AND HYDROGEOLOGY According to the Geological Map of North Carolina (1985), the subject site is located within the Blue Ridge Physiographic Province, is underlain by sedimentary and metamorphic rocks of the Blue Ridge Belt, and is within a muscovite-biotite gneiss formation. A description of the underlaying Rock Unit Zatm is locally sulfidic; interlayered and gradational with mica schist, minor amphibolite, and hornblende gneiss. According to the US Department of Agriculture, Natural Resources Conservation Service, Web Soil Survey, soils at the subject property consist of Chester loam (CeC), which generally have a 6 to 10 percent slope, and are classified as well drained loam (0 to 5-inches), clay loam (5 to 21- inches), fine sandy loam (21 to 29-inches) and sandy loam (29 to 80-inches). Parent materials were classified as creep deposits over residuum weathered from igneous and metamorphic rock. Encountered soils from monitoring well MW-1A located above the rock interface (0 to 15-feet below grade) were generally classified as reddish-brown clayey silt. According to a review of applicable USGS topographic mapping for the subject property and onsite observations, it has been determined that natural surface drainage in the vicinity of the subject site is generally in a south-southeasterly direction. While not always the case, groundwater flow direction typically follows the direction of surface water flow, and is, therefore, anticipated to flow south-southeasterly. Man-made improvements may alter natural local drainage patterns to some degree. The data obtained and reported herein is representative of conditions only at the referenced boring and monitoring well location, and is not necessarily indicative of conditions elsewhere on the subject property. CES Project No. 8079.0123E 19 June 5, 2023 8.0 SAMPLING RESULTS 8.1 Phase I Investigation Based on the reported rock interface at a depth of approximately 15-feet below grade, on April 25, 2023, under the direction of CES, an air rotary drill rig was mobilized to the site to install one soil boring in the former gasoline tank grave for subsequent conversion into a 2-inch diameter permanent groundwater monitoring well to a proposed depth of 35-feet below grade. However, during drilling activities on April 25, 2023, groundwater was not encountered to a maximum boring exploration depth of 40-feet below grade utilizing the air rotary drilling equipment. At this time, per conversations with Mr. Scott Ryals, NCDEQ, the boring was terminated and it was agreed that an attempt would be made to sample perched water that was observed immediately above the rock interface at 15-feet below grade. As a result, a 1-inch diameter groundwater monitoring was set within the bore hole to a depth of 20-feet below grade and completed with 10-feet solid riser and 10-feet schedule 40 screen. Soil boring/monitoring well MW-1 was installed by a sub-contracted driller, Carolina Soil Investigations, LLC of Olin, North Carolina, via air rotary augering techniques, utilizing a track- mounted geoprobe rig, Model 7822DT, equipped with an air compressor. Prior to the completion of MW-1, Monitoring Well Construction Permit Number WM0401433 was obtained from the Water Quality Regional Operations Section of the NCDEQ Division of Water Resources. Encountered soils from monitoring well MW-1A located above the rock interface (0 to 15-feet below grade) were generally classified as reddish-brown clayey silt. Figure 2, Site Plan, depicts the location of monitoring well MW-1. A monitoring well construction log and drilling form for the soil boring/monitoring well are included as Table B-7 and Appendix E, respectively. The Monitoring Well Construction Permit and Subsurface Investigation Permit are included in Appendix E. During the advancement of the soil boring, the CES Environmental Scientist field screened encountered soils above the rock interface with a MiniRAE 2000 PID for the presence of VOCs, reported in parts per million per volume (ppmv), to facilitate the selection of one soil sample for subsequent laboratory analysis. PID measurements ranged from non-detect (ie, 0.0 ppmv) to 61.5 ppmv, from a soil sample collected immediately above the rock interface, at a depth of approximately 15-feet below grade. Based on PID measurements and the presence of the rock interface at approximately 15-feet below grade, the soil sample immediately above the rock interface, at a depth of approximately 15-feet below grade was collected in laboratory provided vials and glassware, stored on ice, and hand delivered under COC procedures on April 26, 2023, to Waypoint for laboratory analysis of the following:  VOCs by 8260 + MTBE/IPE  sVOCS by 8270 BNA  MassDEP VPH  MassDEP EPH  Metals: Pb + Cr Soil laboratory analytical results from MW-1 reported the following petroleum-related constituent concentrations above the Soil to Water MSCC: CES Project No. 8079.0123E 20 June 5, 2023  MW-1: 1-methylnaphthalene and 2- methylnaphthalene. Soil laboratory analytical results from MW-1 reported the following petroleum-related constituent concentrations above the Soil to Water MSCC, Residential Soil Clean Up Levels and the Industrial/Commercial MSCC:  MW-1: chromium. All other concentrations of petroleum-related constituents were reported below Soil to Water MSCC, Residential Soil Cleanup Levels and Industrial/Commercial MSCC from MW-1. A photographic log depicting the site and soil boring location is included in Appendix B. Figure 2 depicts the location of soil boring/monitoring well MW-1. Figure 3 depicts an Estimated Extent of Soil Contamination Map. Table B-3 summarizes soil laboratory analytical results. Soil laboratory analytical reports are included in Appendix D. On May 4, 2023, CES returned to the site to collect a perched water sample from MW-1. Prior to sample collection, DTW measurements were recorded using a water level meter capable of detecting light non-aqueous phase liquid (LNAPL or Free Product) to an accuracy of 0.01 feet. Free product was not detected in MW-1. DTW was recorded at a depth of 14.60-feet below grade in MW-1. Groundwater samples were then collected from MW-1, placed on ice, and delivered under COC procedures to Waypoint on May 5, 2023 for analysis of VOCs by 6200B, Base/Neutrals and Acids by 625, VPH and EPH by MassDEP methodologies. It should be noted that due to low water volumes encountered, perched water samples were not submitted for analysis of EDB by 504.1 or Metals (PB & Cr). Groundwater laboratory analytical results from MW-1 reported the following petroleum-related constituent concentrations above the 2L Standards:  MW-1: naphthalene, C9-C12 aliphatic and C9-C10 aromatic. All other concentrations of petroleum-related constituents were reported below 2L Standards from MW-1. No concentrations of petroleum-related constituents were reported above the GCL from MW-1. Figure 4 depicts a Groundwater Elevation and Estimated Extent of Contamination Map. Tables B-4 and B-9 summarize groundwater analytical results and depth to groundwater measurements, respectively. Field data sheets for groundwater sampling, along with CES’ standard operating procedures for soil and groundwater investigations, and the prepared and reviewed Job Hazard Analysis (JHA) and Emergency Management and Health & Safety Plan (HASP) are included in Appendix C. Groundwater analytical reports are included in Appendix D. CES Project No. 8079.0123E 21 June 5, 2023 9.0 CONCLUSIONS AND RECOMMENDATIONS 9.1 Conclusions and Recommendations Conclusions: A Phase I LSA of the subject property was completed by CES to evaluate if soil and groundwater has been impacted at the site by the apparent release condition from the historical operation of the gasoline UST system (removed in December, 1990), and if the potential exists for nearby water supply wells and/or other receptors to be impacted. Subsequent findings indicated that a soil sample collected from a soil boring/monitoring well (MW- 1) installed in the area of the former gasoline tank grave, reported concentrations of petroleum- related constituents above Soil Standards, and subsequent groundwater samples collected from MW-1 reported concentrations of petroleum-related constituents above 2L Standards, but below the GCL. Two water supply wells, used for drinking water, located approximately 275-feet to the west of the site at 1467 US-21 S, and approximately 900-feet to the southeast of the site at 1606 US-21 S, were identified within 1,500-feet of the site. Recommendations: Based upon soil concentrations reported above applicable soil standards from a soil sample collected from immediately above the rock interface, at a depth of approximately 15-feet below grade, and a perched water sample reporting concentrations above the 2L Standard, but below the GCL Standard, and with the reported presence of two water supply wells located in the general vicinity of the site, at a distance of approximately 275-feet to the west (presumed cross gradient) and 900-feet to the southeast (presumed downgradient), it is recommended that water samples be collected from these two water supply well systems and analyzed for petroleum-related constituents to evaluate the potential for the apparent release condition at the subject site to have impacted these nearby, and identified sensitive receptors. CES Project No. 8079.0123E 22 June 5, 2023 10.0 REFERENCES Law Engineering and Environmental Services, Inc, of Greensboro, North Carolina. Report of Environmental Services, dated February 19, 1993. Law Engineering and Environmental Services, Inc, of Greensboro, North Carolina. Report of Environmental Services, dated February 22, 1994. Law Engineering and Environmental Services, Inc, of Greensboro, North Carolina. Response to NCDEM Letter Dated April 16, 1996, dated June 21, 1996. FIGURES ^_ Site Location Figure 1Topographic Site Location MapG&B Oil Company1497 NC 21 SSparta, Alleghany County, North CarolinaDrawn on: 5/30/2023 Drawn by: Amy Schmidt Reviewed by: Greg Hans 3525 Whitehall Park Drive Suite 150 Charlotte, North Carolina 28273T: 704-489-1500 www.ces-group.net 0 2,000 4,000 6,000 8,0001,000 FEET REFERENCE: USGS The National Map: National Boundaries Dataset, 3DEP Elevation Program, Geographic Names Information System, National Hydrography Dataset, National Land Cover Database, National Structures Dataset, and National Transportation Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data; U.S. Department of State Humanitarian Information Unit; and NOAA National Centers for Environmental Information, U.S. Coastal Relief Model. Data refreshed April, 2023. CES Project No. 8079.0123E DRAWN BY: BN CHECKED BY: GH PROJECT NUMBER: 8079.0123E DRAWING TITLE: SHEET NUMBER: SEAL:PROJECT DESCRIPTION:Site PlanCES GROUP ENGINEERS, LLP NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVESUITE 150CHARLOTTE, NC 28273T 704. 489.1500 www.ces-group.net DATE: 05/30/2023 SCALE : 1" = 20' DRAWN BY: BN CHECKED BY: GH PROJECT NUMBER: 8079.0123E DRAWING TITLE: SHEET NUMBER: SEAL:PROJECT DESCRIPTION:Estimated Extent of Soil Contamination MapCES GROUP ENGINEERS, LLP NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVESUITE 150CHARLOTTE, NC 28273T 704. 489.1500 www.ces-group.net DATE: 05/30/2023 SCALE : 1" = 20' DRAWN BY: BN CHECKED BY: GH PROJECT NUMBER: 8079.0123E DRAWING TITLE: SHEET NUMBER: SEAL: PROJECT DESCRIPTION:Groundwater Elevation andEstimated Extent of Contamination MapCES GROUP ENGINEERS, LLP NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVESUITE 150CHARLOTTE, NC 28273T 704. 489.1500 www.ces-group.net DATE: 05/30/2023 SCALE : 1" = 20' !( !( !( !( !( !(^_ Site Location LITTLERIV E R308016715630802525313080054269308005529230801513443080152823 3 0 8 0 1 5 1 3 4 4 3 0 8 0 1 5 5 3 2 8 308015042130801501713080156202308015613430801562023080155328308015613430801571433 0 8 0 1 4 3 9 2 5 3 0 8 0 1 4 2 7 1 9 308014271930801435443 0 8 0 0 4 2 8 2 9 3 0 8 0 0 4 0 9 6 0 3 08 00 42 8 29 30 8 0 0 44 92 7 3080148188 3080240284 3080234931308023565830802349313080233918308032481130803304613080324811308033367030803248113080327599308024028430801496963080042512 LITTLE RVR 308004 938830800489643080049388LITTLE RVR30800493883080130059 LI T TLERVR3 080046224LITTLE RVR 3080130059 30800468583080046965 3 0 8 0 0 5 6 1 4 13080055292 308004632830800464173080046417308004651630800465163080046615 3080046820 3080046722 3080351291308025253130803431483080333670 30803431483080436305308025973730803506323080454014 308043630530801477643080149696308014776430801479583080147764 3080247982 3080149696 308024798 2 3080057495 3080056320 3 0 8 0 3 3 0 4 6 1 3 0 8 0 3 3 3 6 7 0 3 0 8 0 1 5 4 7 0 3 3 0 8 0 1 5 5 3 2 8 3 0 8 0 1 5 2 8 2 3 3 0 8 0 1 5 5 3 2 8 3080157143308014795830801479583080247 9 8 2 30802525313080247982 3080245297 30802484533 0 8 0 2 4 5 2 9 7 3 0 8 0 2 4 1 1 9 6 3080248453 3080247982 3080333670 3080436305 3080327599 3080436305 3080229058308013005930802339183080241196US HWY 21 NGREENWAYDRMILLFALLSLNFAIRFIELD D R SOUTHSIDEDR DEERHAVEN R D RIVERSEDGERD Figure 5Potential Receptor and Land Use MapG&B Oil Company1497 NC 21 SSparta, Alleghany County, North CarolinaCES Project No. 8079.0123E Drawn on: 5/30/2023 Drawn by: Amy Schmidt Reviewed by: Greg Hans 3525 Whitehall Park DriveSuite 150Charlotte, North Carolina 28273T: 704-489-1500www.ces-group.net³ 0 300 600 900 1,200150 FEET Legend ^_Site Location 500' Radius 1,000' Radius 1,500' Radius Parcels !(Water Supply Wells - None Present !(Water Supply Wells - Active (Drinking Water) !(Water Supply Wells - Active (Drinking Water and Irrigation) REFERENCE:NC OneMap aerial orthoimagery dated 2022. Parcel data and street dataobtained from NC OneMap and Alleghany County TABLES Table B-1: Site History – UST/AST System and Other Release Information Revision Date: 05/18/2023 Incident Number and Name: 7068; G B Oil Co - Sparta UST ID#: WS-2851 No Description of Associated Piping and Pumps Was release associated with the UST System? Status of USTDate Tank Installed Steel 1/1/1964 Permanently Closed / Removed 12/1990 UST ID Number Gasoline 1,000 Unknown Unknown1 Gasoline Tank Dimensions (diameter x length) Construction Details Capacity (in gallons) Previous Contents Current/Last Contents 2 Gasoline Gasoline 1,000 Unknown Unknown Steel 1/1/1964 Permanently Closed / Removed 12/1990 Yes 3 Gasoline Gasoline 1,000 Unknown Unknown Steel 1/1/1964 Permanently Closed / Removed 12/1990 Yes 4 Diesel Diesel Unknown Unknown Unknown Steel 1/1/1964 Unknown Unknown 5 Heating Oil Heating Oil 270 Unknown Unknown Unknown Unknown Unknown Unknown Page 1 of 2 Table B-1: Site History – UST/AST System and Other Release Information Revision Date: 05/18/2023 Incident Number and Name: 7068; G B Oil Co - Sparta UST ID#: WS-2851 Incident Number Material Released Date of Release 7068 Petroleum December, 1990 Description of Associated Piping and Pumps Was release associated with the AST System? Date Tank Installed AST ID Number Current/Last Contents * Previous Contents * Capacity (in gallons) Construction Details **Tank Dimensions Status of AST *** Description of Release Soil contamination reported from samples collected underneath the 1,000-gallon gasoline USTs Page 2 of 2 Table B-2: Site History - UST/AST Owner/Operator and Other Responsible Party Information Revision Date: 05/18/2023 Incident Number and Name: 7068; G B Oil Co - Sparta UST ID#: WS-2851 2 3 4 State Zip NC 28621 State Zip NC 28621 State Zip Street Address G&B Oil Co, Inc Tanks 1 - 3 (1/1/1964 through 12/1990); Tank 4 (1/1/1964 through Unknown) UST ID Number 1 Facility ID Number Name of Owner Dates of Operation (mm/dd/yy to mm/dd/yy) 00-0-0000031916 City Telephone Number Elkin N/A 667 North Bridge Street Name of Other Responsible Party Dates of Release(s) (mm/dd/yy to mm/dd/yy) Street Address City Telephone Number Sparta N/A Incident Number 7068 Street Address Hwy 21 North City Telephone Number Name of Operator Dates of Operation (mm/dd/yy to mm/dd/yy) G&B Oil Co, Inc Tanks 1 - 3 (1/1/1964 through 12/1990); Tank 4 (1/1/1964 through Unknown) Page 1 of 1 Table B-3: Summary of Soil Analytical Results Revision Date: 5/18/2023 Incident Number and Name: Incident No. 7068; G B Oil Co - Sparta UST ID#: WS-2851 6010D 6010D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8260D 8270E 8270E MADEP- EPH MADEP- EPH Sample ID Date Collected (m/dd/yy) Source Area (eg. Tank Grave) Sample Depth (feet BGS) PID (ppmv) MW-1 4/25/23 Tank Grave 15' 61.5 97.8 20.1 0.012 J 0.005 J 0.001 J 0.0007 J 0.0010 J 0.006 JB 0.031 0.004 J 0.033 0.012 3.93 J 5.81 J 19.1 J 21.9 J 3.8 270 24 2.4 2.2 8 1.3 0.023 0.2 1.4 6.6 6.6 0.054 1.5 540 N/A 1.32 400 930 930 1560 60.3 1560 93.8 5.5 1560 156 156 22.8 62.5 1560 31200 6.54 400 14000 11600 23300 297 23300 1400 27 23300 2330 2330 112 934 23300 46700 Feet BGS = feet below ground surface mg/kg =milligrams per kilogram ppmv: parts per million per volume as detected by MiniRAE2000 photoionization detector (PID) J: Estimated value BDL = Below Laboratory Detection Limit NA = Not applicable Highlighted Yellow / Bold = Values exceeding the Soil-to-Water Soil Standard Highlighted Green / Bold = Values exceeding the Residential Soil Cleanup Standard Highlighted Red / Bold = Values exceeding Soil-to-Water, Residential and Industrial/Commercial Standards Concentrations compared to Table - 1, Rev 10/5/2021, Site Checks, Tank Closure, and Initial Response and Abatement (same as current version of Table 1 - Assessment and Corrective Action for UST Releases)AcetoneAnalytical Method (e.g., VOCs by 8260D)  Contaminant of Concern (mg/kg) ChromiumLeadIndustrial/Commercial MSCC (mg/kg)C19-C36 Aliphaticn-Butylbenzenesec-ButylbenzeneEthylbenzene2-MethylnaphthaleneC9-C18 AliphaticMethylene ChlorideNaphthalene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneIsopropylbenzenen-Propylbenzene1-MethylnaphthaleneSoil-to-Water Maximum Contaminant Concentration (mg/kg) Residential Soil Cleanup Levels (mg/kg) Table B-4: Summary of Groundwater Analytical Results Revision Date: 05/18/2023 Incident Number and Name: Incident No. 7068; G B Oil Co - Sparta UST ID#: WS-2851 6010D 6010D 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 6200B 625.1 625.1 MADEP EPH MADEP EPH MADEP VPH MADEP VPH MADEP VPH Sample ID Date Collected (m/dd/yy) Incident Phase MW-1 5/4/23 LSA NA NA 56.7 J 9.18 2.38 J 297 27.7 3.62 J 16.2 J 166 49.7 3.22 J 232 303 273 5.22 J 5.71 J 70.2 J 229 J 57 3,880 2,420 10 15 6000 70 70 600 70 25 400 6 70 70 400 400 500 30000 100 700 NA 400 700 200 10000 15000 6000000 5900 8800 80000 30500 11700 4000000 6000 26100 70000 28500 24100 50000 1700000 100000 NA NA NA NA NA µg/l = Micrograms per Liter GCL = Gross Contamination Level BDL = Below Laboratory Detection Limit NA = Not Available or Applicable J = Detected but below the Reporting Limit; therefore, result is an estimated concentration Concentrations in BOLD and Highlighted Yellow reported above 2L Standards (May 4, 2023) No concentrations were reported above GCL Standards (May 4, 2023) Constituents not listed above were reported as BDLs Laboratory analysis performed by Waypoint Analytical, Inc of Charlotte, NC (NC Certification No. 402)Styrene2L Standard (ug/L) (Effective 4/1/2022) GCL (ug/L) (Table 2 - Revised 10/8/2020)EthylbenzeneAcetoneMethyl Ethyl Ketone (MEK)ChromiumLeadC9-C10 AromaticC5-C8 AliphaticC9-C12 AliphaticAnalytical Method (e.g., VOCs by EPA 6200B)  Contaminant of Concern (mg/kg) n-ButylbenzeneXylene (Total)Isopropyl benzene4-Isoproply toluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneNaphthalenen-Propyl benzenesec-Butyl benzeneBenzoic AcidC11-C22 AromaticC9-C18 Aliphatic2,4-Dimethylphenol Table B-5: Public and Private Water Supply Well and Other Receptor Information Revision Date: 05/23/2023 Incident Number and Name: No. 7068; G B Oil Co - Sparta UST ID#: WS-2851 Water Supply Well and Other Receptor Information 1 WSW Robert Andrews Both 336-467-0317 1467 US-21 S, Sparta, NC 28675 Business 36.49112 -81.10338 A / P 275 Cross gradient 2 WSW Zachary Johnson Both 336-657-1981 1606 US-21 S, Sparta, NC 28675 Residential / Livestock Uses 36.48820 -81.10222 A / P 900 Downgradient Additional Information for Water Supply Wells (and Other Receptors, if applicable) Well # / ID (same as above) Public Water: Connected / Available / Not Available Well Currently Used for: Active / Inactive / Abandoned Construction Method and Well Type Total Depth (ft BGS) Screened Interval (x to y ft BGS) ft BGS = Feet below ground surface Distance from Source (ft) Street Address for Receptor * Ex: WSW = Water Supply Well, SWB = Surface Water Body, Resvr = Reservoir, PWS = Public Water Supply, PW = Public Well, SW = Supply Well, WPA = Wellhead Protection Areas, RA = Recharge Areas (for deep aquifers), Sub = Subsurface Structures, Con = Conduits, Other: ** The location and/or latitude/longitude (IN DECIMAL DEGREES) must be sufficiently accurate and precise to allow easy location of wells (or recovery if buried/paved/covered-over, lost, or otherwise damaged) and for the location / replication of sampling points for any other receptor. Coordinates are estimated based on physical location of onsite structure(s) *** Status: A = Active or IA = Inactive *and* Use: P = Potable or NP = Non-Potable Use. (Describe further in Additional Information for Water Supply Wells table below.) Up or Downgradient (if known) Well # Contact Name Source Status & Use *** Type *Owner/User/ Both Contact Phone # Receptor Description and Location Details ** Latitude/ Longitude ** (decimal degrees) Private / Public / Semi-Public Casing Depth (ft BGS) No other receptors are known to exist within 500-feet, 1,000-feet or 1,500-feet of the site Page 1 of 1 Table B-6: Contiguous Property Owners/Occupant Revision Date: 05/18/2023 Incident No: 7068; Name: G B Oil Co - Sparta UST ID#: WS-2851 Tax Parcel Number / Map ID Owner / Occupant Name Address (Physical) Address (Mailing) 3080147074 (subject property) Lowell T. Miller & Martha M. Smiley / Vacant 1497 US-21 S, Sparta, NC 28675 1778 Memorial Park Drive, Sparta, NC 28675 3080148121 (adjoining property to the north) Judith Carr Morrison / Residential 299 Deer Haven Road, Sparta, NC 28675 299 Deer Haven Road, Sparta, NC 28675 3080241196 (adjoining property to the east) Scotts Rent-All, LLC / Self- Storage Facility 1549 US-21 S, Sparta, NC 28675 PO Box 661, Sparta, NC 28675 3080146351 (property to the west across Deer Haven Road) Robert Andrews / Andrews & Gentry Surveyors 1467 US-21 S, Sparta, NC 28675 PO Box 111, Sparta, NC 28675 3080130059 (property to the south across US- 21) Dogwood Desperado Trust / Residential & Farmland 1606 US-21 S, Sparta, NC 28675 PO Box 877, Sparta, NC 28675 Table B-7: Monitoring and Remediation Well Construction Information Revision Date: 05/18/2023 Incident Number and Name: No. 7068; G B Oil Co - Sparta UST ID#: WS-2851 Well ID Date Installed (m/dd/yy) Date Water Level Measured (m/dd/yy) Well Casing Diameter (in.) Well Casing Depth (ft. BGS) Screened Interval (x to y ft. BGS) Depth of Well (ft. BGS) Top of Casing Elevation* (ft.) Depth to Water from Top of Casing (ft.) Free Product Thickness ** (ft.) Initial Groundwater Elevation* (ft.) Latitude/ Longitude (decimal degrees)*** MW-1 4/25/2023 5/4/2023 1" 10' 10 to 20' 20' N/A 14.60 0.0 14.60 36.49064 -81.10264 ft BGS = feet below ground * Reference Point for Elevation Measurements Sea Level ** If free product is present in a well, groundwater elevation is calculated by: [Top of Casing Elevation - Depth to Water] + [free product thickness x 0.8581] *** The location must be sufficiently accurate and precise to allow easy recovery of lost or damaged wells. Depth to groundwater measurement representative of perched water depth to water measurement Page 1 of 1 Table B-9: Groundwater Elevations and Free Product Thickness Revision Date: 05/18/2023 Incident No. 7068; Incident Name: G B Oil Co - Sparta UST ID#: WS-2851 Well ID #Top of Casing Elevation (MSL) Screened Interval (top of screen, bottom of screen) Date Depth to Water* Uncorrected (feet) Free Product Thickness (feet) Depth to Water* Corrected for Free Product Thickness(feet) Groundwater Surface Elevation (MSL) MW-1 NA 10 - 20' 5/4/2023 14.60 0 14.60 NA *representative of perched water depth to water measurement APPENDIX A HISTORICAL DATA APPENDIX B SITE PHOTOGRAPHS View of former UST excavaƟon area (vegetaƟve overgrowth) with the installaƟon of MW-1 in progress AddiƟonal view of former UST excavaƟon area (vegetaƟve overgrowth) with the installaƟon of MW-1 in progress Carolina Soil InvesƟgaƟons air compressor equipment uƟlized for air rotary drilling during the installaƟon of MW-1 InstallaƟon of MW-1 uƟlizing air rotary drilling techniques MW-1 (1-inch monitoring well set at 20 feet below grade) View of agricultural farmland to the south of the site APPENDIX C MONITORING FIELD DATA SHEETS, SAMPLING PROTOCOLS, JOB HAZARD ANALYSIS, AND HEALTH & SAFETY PLAN Appendix B: Groundwater Monitoring Field Data Completion Date: 05/18/2023 Incident Number and Name: Incident No. 7068; G B Oil Co - Sparta UST ID No. WS-2851 Well ID Sampling Date (m/dd/yy) Well Casing Diameter (in.) Screened Interval (x to y ft. BGS) Depth of Well (ft. BGS) Top of Casing Elevation * (ft.) Depth to Water from Top of Casing (ft.) Free Product Thickness (ft.) Groundwater Elevation* (ft.) Sample Analysis Number of Sample Containers Proposed Purged Volume (gal) Actual Purged Volume (gal) Purge Comments MNA Parameters MW-1 5/4/2023 1" 10 to 20' 20' N/A 14.60 ND N/A 6200B + ext, 504.1, 625 BNA + TICs, VPH, EPH, PB + Cr 15 N/A N/A Monitoring well not purged/developed due to size and low water volume Not Collected G B Oil Co - Sparta, NCDEQ Incident No.: 7068, UST ID No.: WS-2851 *: Top-of-Casing elevations not obtained under current task order / work order 1 ENVIRONMENTAL MANAGEMENT AND HEALTH AND SAFETY PLAN NCDEQ Project WS-2851_7068 G&B Oil Company 1497 NC 21 S Sparta, Alleghany County, NC CES PROJECT NUMBER: 8079.0123E Prepared by: CES GROUP ENGINEERS, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 February 6, 2023 i TABLE OF CONTENTS Page 1.0 INTRODUCTION 1 1.1 PURPOSE/OBJECTIVE 2 1.2 RESPONSIBILITIES FOR HEALTH AND SAFETY 3 1.3 SUBCONTRACTOR’S RESPONSIBILITY 3 2.0 ASSIGNMENT OF RESPONSIBILITY 4 2.1 SITE SAFETY OFFICER 4 2.2 PROJECT MANAGER(S) 5 3.0 BACKGROUND AND HAZARD EVALUATION 7 3.1 PROJECT DESCRIPTION 7 3.2 HAZARD EVALUATION 7 3.3 SAFETY DATA SHEETS (SDS) 8 4.0 AIR MONITORING 9 4.1 MONITORING EQUIPMENT 9 4.2 TYPES AND FREQUENCY OF MONITORING 10 4.2.1 Breathing Zone Monitoring 10 4.2.2 Explosive Gas Source Monitoring 10 4.2.3 Work Area Monitoring 10 4.2.4 Dust Monitoring 10 4.3 ACTION LEVELS 11 5.0 PERSONAL PROTECTIVE EQUIPMENT AND PROCEDURES 11 5.1 RESPIRATORY PROTECTION 11 5.2 PROTECTIVE CLOTHING 12 5.3 LEVELS OF PROTECTION 13 5.3.1 Modified Level D 13 5.3.2 Level D Protection 13 5.3.3 Level C Protection 14 5.3.4 Level B Protection 14 6.0 SITE CONTROL 15 6.1 REGULATED AREAS 15 6.2 ACCESS/SITE SECURITY 16 6.3 POSTING/BARRICADES 16 ii Page 7.0 POLICIES 16 7.1 GENERAL WORK PRACTICES 16 7.2 HEAVY EQUIPMENT OPERATION 17 7.3 SANITATION 19 8.0 DECONTAMINATION 19 8.1 PERSONAL DECONTAMINATION 20 8.2 EQUIPMENT DECONTAMINATION 21 9.0 TRAINING 22 9.1 BASIC TRAINING 22 9.2 SITE-SPECIFIC TRAINING 22 10.0 HEALTH MONITORING 23 10.1 PHYSICAL EXAMINATION 23 10.2 HEAT STRESS 23 10.3 COLD STRESS 24 10.4 SELF MONITORING 26 11.0 SITE STANDARD OPERATING PROCEDURES 26 11.1 WORK PRACTICES 26 11.2 COMMUNICATION PROCEDURES 27 12.0 EMERGENCY PROCEDURES 28 12.1 GENERAL 28 12.2 RESPONSIBILITIES 29 12.3 EMERGENCY CONTACT LIST 30 12.4 PERSONNEL INJURY IN THE EXCLUSION ZONE 32 12.5 PERSONNEL INJURY IN THE SUPPORT ZONE 32 12.6 FIRE OR EXPLOSION 32 12.7 PERSONAL PROTECTIVE EQUIPMENT FAILURE 32 12.8 POLLUTANT DISCHARGES/SPILLS 32 APPENDIX A Safety Data Sheet (Benzene - Volatile Organic Compounds) APPENDIX B Emergency Phone Numbers / Contact List APPENDIX C Route to Hospital 1 ENVIRONMENTAL MANAGEMENT AND HEALTH AND SAFETY PLAN (EMP) NCDEQ Project WS-2851_7068 G&B Oil Company 1497 NC 21 S Sparta, Alleghany County, NC 1.0 INTRODUCTION This Environmental Management and Health and Safety Plan (EMP), additionally referred to as the ‘plan”, has been developed for CES Group Engineers, LLP (CES), for application to work completed at NCDEQ WS-2851_7068, G&B Oil Company, 1497 N C 21 S, Sparta, Alleghany County, North Carolina, under CES Project Number: 8079.0123E. For the purpose of this plan, the term “project” references “NCDEQ WS-2851_7068”. Additionally, this plan should also be utilized for any work completed at surrounding properties where contamination, or additional assessment activities, may be located. For the purpose of this plan, the term “subsurface investigation” will include, but is not limited to, geophysical investigations, air rotary drilling of soil borings with conversion to temporary or permanent monitoring wells, excavation and removal of encountered underground storage tanks (USTs), and contaminated soils / groundwater, and additional assessment and remediation activities, which may include hand-augering of soil borings, installation of monitoring wells and/or remedial recovery wells, groundwater monitoring and sampling, and injections, and the abandonment of monitoring wells. The term “subsurface investigation” may also be referred to as “excavation” in this plan. The plan addresses health and safety procedures and information relevant to environmental services being provided by CES personnel, and/or subcontracted personnel. The health and safety portion of the plan provides procedures to minimize: (1) the potential for accidents from physical hazards, and (2) the potential for exposure to chemical contaminants during activities which disturb the subsurface materials in the event that contamination of soil or groundwater by special wastes is encountered. The Project Manager, assisted by the assigned Site Safety officer, will ensure that all on-site subcontractor personnel, and site visitors, comply with the specified health and safety requirements. At least one copy of this EMP will be maintained at the local office of CES, as well as one copy will be maintained onsite by CES, and/or subcontracted personnel. 2 As part of CES’ safety program, a site-specific Job Hazard Analysis (JHA) form will be used, in conjunction with this plan, which will also include the name, address, and telephone number of the nearest hospital in relation to the project address where work is being completed. CES personnel have been instructed to utilize 911 as the first call should an accident, or issue, be apparent that warrants an immediate emergency response action. This plan is intended for general use during subsurface investigation activities completed by CES personnel, or CES subconsultants/subcontractors, and as a general reference for workers to review and understand the potential environmental and health and safety conditions that may be present under normal subsurface investigation conditions. Additionally, this plan should also be utilized for any work completed at surrounding properties where subsurface investigation activities are, or may be required. Prior to initiating subsurface investigation activities, as those referenced above, CES personnel (Project Manager(s), Site Safety Officer, and/or Field Crews) will complete Job Hazard Analysis (JHA) and selected CES safety forms which detail job specifics, including the sequence of basic job steps, potential incidents or hazards, and recommended procedures to eliminate potential incidents or hazards. 1.1 PURPOSE / OBJECTIVE The protection of workers and environmental safety and health are major concerns during this project and cannot be understated. The objective of the EMP is to document procedures and precautions to be implemented during any geophysical investigations and installation of soil borings (via air rotary drilling techniques) with conversion to permanent monitoring wells, and site assessments, including soil and groundwater monitoring and/or remediation activities, in order to provide for and promote safe working conditions at the site during field activities, specifically at locations where contamination of soil and groundwater has been documented and/or is expected to be encountered. The safety organization and procedures have been established based on a previous analysis of potential hazards at the site. Personal protection measures have been selected in response to these potential hazards. This EMP and HASP has also been developed based upon review of the requirements described in the U.S. Environmental Protection Agency (USEPA) Standard Operating Safety Guide and the U.S. Department of Labor OSHA standards 29 CFR Part 1910. Reasonable precautions will be taken by the contractor’s representative and its subcontractors to provide for and promote the safety and health of workers and the general public. Subcontractors will 3 be given copies and will be required to follow this EMP. 1.2 RESPONSIBILITIES FOR HEALTH AND SAFETY All site activities which have the potential to expose personnel to site contamination or a related injury are subject to this EMP. Personnel will be responsible for adherence to the safety procedures during the performance of the work. In no case may work be performed in a manner that conflicts with the intent of, or the inherent safety and environmental cautions expressed in, these procedures. Following due warning(s), personnel who violate safety procedures will be dismissed from the site, and may be terminated. In the event that contamination is encountered during regular construction operations, personnel will be exclusively employed in the affected area of the project site, who have been properly trained in health and safety regulations associated with handling hazardous materials or special wastes as specified in the training section (Section 9.0) of this EMP. The requirements provided herein may be modified as the work progresses to accommodate changing conditions, but a reduction or increase in the health and safety requirements will not be made without prior approval by the assigned Site Safety Officer (SSO). The prevention of adverse health effects and injuries to site workers is totally dependent on the contribution of all project participants. Open communication among workers, supervisors, and management concerning safety at the site is an essential element of this EMP. 1.3 SUBCONTRACTOR’S RESPONSIBILITY The Subcontractor is solely responsible for the health, safety, and protection of their own on- site personnel during the performance of the survey services work scope. The Subcontractor will perform the work specified in the contract documents in accordance with the HEALTH AND SAFETY REQUIREMENTS specified herein, and federal, OSHA, state, and local health and safety regulations. It will be the responsibility of the Subcontractor to be familiar with the required health and safety regulations in the performance of this work. The Subcontractor will designate a Site Safety officer to implement and monitor activities related to this EMP. Should any unforeseen or site-specific safety-related factor, hazard, or condition become evident during the performance of the work, the Subcontractor will take immediate and prudent action to establish and maintain safe working conditions and to safeguard site personnel, the public, and the environment. 4 2.0 ASSIGNMENT OF RESPONSIBILITY All site activities which have the potential to expose CES personnel to site contamination or related injury are subject to this EMP. As previously discussed, all site personnel are responsible for adherence to the safety procedures during performance of the work. Specific oversight responsibilities are assigned to various personnel as discussed in the paragraphs to follow. 2.1 SITE SAFETY OFFICER The SSO will be assigned to monitor the daily activities to assure that all health and safety procedures/policies are being followed by CES personnel. This includes communicating the specific requirements to all personnel, including subcontractors, implementing the EMP, conducting site inspections to monitor compliance with EMP as required, providing or coordinating training as required, coordinating the medical monitoring program, coordinating respirator fit tests as required, coordinating the acquisition, calibration and maintenance of air monitoring equipment, respirators and other safety equipment, directing on-site health and safety activities, and reporting safety related incidents or accidents to the Project Manager. The SSO for CES is: Greg Hans, PMP CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 704.325.5408 (direct) 617.828.9948 (mobile) It should be noted that the SSO may and will delegate responsibilities to a representative of CES, subconsultants and/or subcontractors working at the Site and offsite properties for any and all tasks associated with additional subsurface investigation activities. 2.2 PROJECT MANAGER(S) The project manager is ultimately responsible for ensuring that all project participants abide by the requirements set forth in this plan. Any and all changes in the scope of health and safety requirements or site characterization will be communicated from the Project Manager and/or Environmental Scientist/Engineer to the SSO. 5 Environmental Project Manager: Greg Hans, PMP CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 704.325.5408 (direct) 617.828.9948 (mobile) Environmental Engineer: Chuck Heleine, PE CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150 Charlotte, NC 28273 704.308.7916 (mobile) 3.0 BACKGROUND AND HAZARD EVALUATION 3.1 PROJECT DESCRIPTION This project involves the installation of monitoring well(s) via air rotary drilling techniques with the subsequent monitoring of potentially contaminated groundwater with petroleum related constituents, and may also include geophysical investigations or utility clearance, and the installation of future soil borings with conversion to permanent monitoring wells via mechanical drilling techniques (ie, air rotary), and potential future assessment, monitoring and remediation of soil and groundwater contaminants potentially encountered by said or existing borings. Future activities at the site may include, but are not limited to excavation and removal of encountered underground storage tanks (USTs), and contaminated soils / groundwater, and additional assessment and remediation activities, which may include hand- augering of soil borings, installation of permanent monitoring wells and/or remedial recovery wells, groundwater monitoring, and injections, and abandonment of monitoring wells. During the completion of the aforementioned activities, heavy equipment and machinery, such as drilling rigs, compressors, excavators, back-hoes, dump trucks, etc may be utilized and present onsite. 3.2 HAZARD EVALUATION Constant attention will be given to physical hazards encountered during work day activities, particularly those activities associated near heavy equipment such as drilling, subsurface 6 excavations, and/or earthmoving equipment. An evaluation of the potential hazards associated with site activities has been completed by reviewing the general construction scope of work for each of the projects, to be performed by others. The following potential exposure pathways have been identified: · Dermal contact, inhalation and ingestion of contaminated soils and groundwater · Inhalation and ingestion of contaminated vapors and particles · Ingestion of waste solids (accidental/poor hygiene) · Dermal contact with waste solids Given that subsurface investigation activities may occur in close proximity to ongoing or future construction (ie, excavations) related activities that may disturb surficial and subsurface soils, pipes, etc and the physical properties of the contaminants that may be present at these locations, there is a potential respiratory hazard from contaminants such as petroleum related compounds, and therefore a contact hazard from petroleum related compounds. A respiratory hazard from dust and contaminated dust particles may also exist during nearby drilling, excavation and removal activities. It is recognized that site hazard evaluation is a dynamic and on-going process that changes on a daily basis during progression of the work. However, significant deviation from the prescribed site characterization will necessitate re-evaluation and possible EMP revision. Communication from the SSO will initiate the re-evaluation process by the Project Manager. 3.3 SAFETY DATA SHEETS (SDS) Consistent with 29 CFS 1910.1200, (Hazard Communication Standard) applicable Safety Data Sheets (or equivalent) will be kept on-site, in each vehicle, and with the Project Manager. All subcontractors must ensure that their employees are informed of their rights and responsibilities under the OSHA Hazard Communication Standard. Subcontractors will provide SDS sheets for items which they bring on the site, as applicable. Due to the presence of petroleum related constituents, a SDS for Benzene (prepared by Marathon Petroleum Company, dated 5/14/2015), as VOC concentrations may be encountered onsite, has been included as Appendix A. It should be noted that the attached SDS is representative of potential chemicals and materials that may be encountered in the field during subsurface investigation activities. Should these, or any other chemicals or hazardous materials, actually 7 be encountered by CES employees while in the field, the hazards and exposures of these chemicals or hazardous materials will be re-evaluated. 4.0 AIR MONITORING The purpose of air monitoring during subsurface investigation activities is to identify and quantify airborne contaminants to determine the level of protection needed. Should air monitoring for airborne contaminants be necessary, air monitoring with direct reading instruments will be conducted during all intrusive activities. Four categories of air monitoring will be conducted as follows: · Breathing Zone Monitoring · Explosive Gas Source Monitoring · Work Area Monitoring · Dust Monitoring Equipment to be used in conducting air monitoring activities, along with a description of the type and frequency of monitoring and associated action levels are discussed in the paragraphs to follow. It should be noted that the contractors working in active construction zones, including but not limited to excavations, trenches, bore holes, etc should be responsible for proper air monitoring of these areas. However, should CES feel the need to perform additional air monitoring, the following procedures (as outlined in sections 4.0 through 6.0, and to an extent, sections 7.0 through 11.0) may be implemented. 4.1 MONITORING EQUIPMENT If CES employees are working in, or near, active construction zones where the potential exists for chemical hazards and exposures to be present, the breathing zones will be monitored using a MiniRAE portable VOC monitor. These instruments use a photoionization detector that is designed to measure trace quantities of VOCs with a parts-per-million (ppm) sensitivity range. It does not detect methane. The survey instrument will be calibrated using an appropriate standard according to manufacturer’s instructions. The VOC monitor will be calibrated prior to each use if the instrument is used infrequently, or daily when in constant use. If the MiniRAE portable VOC monitor detects elevated levels of VOC concentrations (> 50 ppmv), in ambient air at the site, a Gastech 02 /explosion/H2S meter will be used to measure oxygen concentrations, explosion potential, and hydrogen sulfide (H2S) concentration. The 8 instrument will be calibrated with methane and H2S according to the manufacturer’s instructions. Air monitoring equipment will be certified intrinsically safe and operated by personnel trained in the use of the specific equipment provided. 4.2 TYPES AND FREQUENCY OF MONITORING 4.2.1 Breathing Zone Monitoring The breathing zone of a representative employee suspected of greatest exposure for each job category engaged in work with potentially hazardous substances will be monitored as follows: · For excavation operations, monitor the breathing zone of the equipment operator and laborers with an OVM when the waste material is initially exposed. The results of the monitoring, the employee’s name, and the work activity will be recorded in the daily log 4.2.2 Explosive Gas Source Monitoring During all operations identified as having a fire/explosion hazard, a combustible gas meter set to measure the lower explosive level (LEL) will be used to continuously monitor the top of the trench or excavation. 4.2.3 Work Area Monitoring Each work area associated with hazardous waste spills and/or contamination will be monitored at least one time each day with an OVM to determine the concentration of contaminants being released into the general area. 4.2.4 Dust Monitoring Chemical exposure via inhalation will be mitigated through the evaluation of wind velocity, and common sense. Personal protective equipment will be utilized as necessary (based on specific action levels) to prevent chemical exposure in excess of the exposure limits. When possible, personnel should be situated upwind of work activity when working at the site. Excavated areas should be allowed to vent for one to two minutes prior to investigative 9 activities to allow any vapors, dusts, or gases to dissipate. Liquids and solids should never be smelled to confirm the presence or absence of chemicals. The SSO or CES representative will screen the site for dusty conditions to prevent inhalation of chemicals in particulate form (e.g. residue on soil grains). If dusty conditions are observed, all workers will wear appropriate respiratory protection designed for dusts. Extremely dusty conditions may require dust suppression via water mist or spray prior to returning to work. 4.3 ACTION LEVELS The action levels as prescribed by the National Institute for Occupational Safety and Health (NIOSH) will be used to initiate protective actions including, but not limited to, use of personal protective devices, shut down of specific work activities, and site evacuation. A current volume of the NIOSH Pocket Guide (electronic version) to Chemical hazards will, or may be utilized as an on-site referenced by the SSO. 5.0 PERSONAL PROTECTIVE EQUIPMENT AND PROCEDURES 5.1 RESPIRATORY PROTECTION During excavation or construction activities in an area where special wastes are expected or have been encountered, the use of respiratory protection equipment may be required. Respiratory protection is of primary importance as inhalation is one of the major routes of exposure to chemical toxicants. Respiratory protective devices include air purifying respirators, air-line respirators, and self-contained breathing apparatus. The following respiratory protection practices will be observed by all workers at the Site when conditions warrant respiratory protection: · The respiratory protection utilized on-site will be in accordance with OSHA, 29 CFR 1910.134 · Only properly cleaned, maintained, NIOSH/MSHA-approved, respirators will be used on-site (if required) · Selection of respirators, as well as any decisions regarding upgrading or downgrading of respiratory protection, will be 10 made by the SSO · Air-purifying cartridges will be replaced on a regular basis (at least once per day) as determined by the SSO · No employee will be assigned to tasks requiring the use of respirators if, based upon the most recent examination, a physician determines that the employee will be unable to function normally wearing a respirator or that the safety or health of the employee or other employees will be compromised by use of a respirator · Persons required to wear full-face respirators must not have beards or moustaches that interfere with proper respirator seal. All personnel wearing full-face respirators or personnel working in the exclusion zone will be required to be clean-shaven prior to each day’s shift. This will be strictly enforced by the SSO · All personnel required to use APRs must be properly fit tested prior to engaging in field activities in accordance with OSHA standards (29 CFR 1910.1025) 5.2 PROTECTIVE CLOTHING To protect workers against dermal contact with contaminants, the following apparel must be worn during site-specific work activities depending on the level of protection specified for those activities (Section 5.3 of this EMP): · Disposable Tyvek coveralls · PVC-coated or equivalent coveralls for splash protection · Nitrile gloves or equivalent · Inner gloves - latex or vinyl · Outer disposable boots · Hard hat · Chemical-resistant boots (Neoprene, PVC, or equivalent) 11 · Hearing protection (as applicable) · Steel-toed safety shoes · Goggles or safety glasses will be worn at all times in the work area · Sleeves taped to gloves and cuffs taped to boots · Face shield attachments for use with hard hats · Disposable, chemical-resistant outer boots Upgrading or downgrading selected protective equipment will be the decision of the SSO based on assessment of exposure potential during specific tasks. 5.3 LEVELS OF PROTECTION The levels of protection to be utilized at the site, and the activities to which they apply, are described in the following paragraphs. The SSO will select the appropriate level of PPE based on air monitoring results. 5.3.1 Modified Level D This is the minimum level of protective clothing to be worn at the site during subsurface investigation activities. All workers, supervisors, and visitors will be required to don the following clothing prior to entering the project site. Based on the anticipated activities to be performed at the site, it is anticipated that Modified Level D will provide adequate protection coverage. · Work clothes · Hard hat · Safety shoes · Visibility vest · Work gloves (only as necessary) 5.3.2 Level D Protection Level D protection includes chemical resistant gloves and will be used for site work whenever contact with contaminated equipment or materials is possible. The following clothing will be required for Level D: · Disposable, chemical-resistant outer boots · Coveralls (work uniform) · Hard hat · Eye protection (safety glasses, goggles, or face-shield)* 12 · Safety shoes · Nitrile gloves* * Optional, as determined by SSO Dust masks shall be used to reduce employee exposure to fugitive dust, an optional Level D device. The absence of dusty conditions at the site will be justification for the SSO to permit personnel to remove their masks. 5.3.3 Level C Protection Level C will be used for site work when the inhalation and dermal contact hazard is elevated. When conditions for Level C protection are appropriate, the following equipment will be required: · Tyvek coveralls/chemical-resistant protective coverall · Gloves (inner latex gloves and outer nitrile gloves) · Hard hat · Safety shoes · Full-face or half-face air purifying respirator with organic vapor cartridge (or other proper type cartridge for the intended use, as determined by the SSO) · Chemical-resistant outer boots · Tape gloves and boots to coveralls to prevent leakage · Hearing protection (as determined by SSO) 5.3.4 Level B Protection Level B will be used for site work when inhalation and dermal contact hazard are elevated to the point that a positive pressure, supplied air source is needed. · Saranex coveralls/chemical-resistant clothing · Gloves (inner latex gloves and outer nitrile gloves) · Hard hat · Self-contained breathing apparatus (SCBA), or Supplied Air- Line Respirator (SAR) · Chemical-resistant safety boots · Gloves and boots taped to prevent leakage 13 6.0 SITE CONTROL The purpose of site control is to minimize potential contamination of workers and to protect the surrounding area from hazards found at the site. If the project site is not secured by fencing or other suitable site control means and is not routinely patrolled by police or other independent security personnel; certain procedures must be followed to ensure suitable site control and limitation of access so that those persons who may be unaware of site conditions are not exposed to hazards. All excavations left open and unattended by site personnel will be appropriately barricaded and visibly posted with “No Trespassing” or other appropriate signage. All heavy machinery and equipment shall be locked or chained each evening upon completion of daily activities. All potentially contaminated media, such as soil, will be covered with plastic prior to leaving the site. 6.1 REGULATED AREAS As appropriate to the task conducted, the site vicinity will be divided into three zones to allow control of worker exposures. These zones are described as follows: · Exclusion Zone. This zone includes the actual area of contamination and localized work area where specific investigative and/or construction equipment is operating. This zone has the highest inhalation exposure potential, and/or presents a high probability of skin contact with cutaneous percutaneous - affecting chemicals. New exclusion zones may exist during certain site-specific activities. This will be defined by the SSO and access by individuals not necessary to operation will be limited. (Level D is minimum). · Contamination Reduction Zone. This zone includes the areas immediately surrounding the Exclusion Zone. All personnel and equipment leaving the Exclusion Zone shall be decontaminated in this zone. 14 Support Zone. This zone covers all areas outside of the Contamination Reduction Zone. Administrative activities are conducted in the Support zone, as well as equipment supply and first aid supply. It is essential that contamination be kept out of this zone. 6.2 ACCESS/SITE SECURITY Access to contaminated work areas (Exclusion and Contamination Reduction Zones) will be regulated and limited to authorized persons. Such persons include the Contractor’s employees, designated equipment operators, and designated union representatives, as applicable. The SSO will enforce access limitations during work hours. 6.3 POSTING/BARRICADES Warning signs will be posted and hung, as applicable, in readily visible locations in or near contaminated work areas. Barricades or barricade tape will be utilized to prevent access to various work areas as indicated above. 7.0 POLICIES 7.1 GENERAL WORK PRACTICES General work practices to be employed on-site are as follows: · At least one copy of this EMP will be available at the work site · No food or beverages will be present or consumed in the exclusion or contamination reduction zones. No tobacco products will be present or used, and cosmetics will not be applied in the exclusion or contamination reduction zones · No matches or lighters are permitted in the exclusion or contamination reduction zones · During operations within an area of contamination, all employees will be required to wash their hands and face before eating, drinking, smoking, or applying cosmetics 15 · Field personnel must observe each other for signs of exposure. Indications of adverse effects include, but are not limited to, the following: - Changes in complexion and skin discoloration - Changes in coordination - Changes in demeanor - Excessive salivation and pupillary response - Changes in speech pattern Field personnel will be cautioned to inform the SSO of non- visible effects of exposure such as the following: - Headaches - Dizziness - Nausea - Blurred vision - Cramps - Irritation of eyes, skin, or respiratory tract · 7.2 HEAVY EQUIPMENT OPERATION Extra attention should be paid to the following information regarding work around heavy equipment (cranes, excavators, front end/backhoe loaders, drilling rigs, etc.). · Use common sense · Follow OSHA requirements found in 29 CFR 1910 and 29 CFR 1926 · Wear hard hats, hearing protection, and safety glasses at all times (when not prohibited by the use of air purifying respirators). Wear other protective gear as specified in the Health and Safety Plan 16 · A closed cab or cage will be required for equipment used at the site · Pay attention at all times · Maintain visual contact at all times · Establish hand signal communication when verbal communication is difficult. Select one person per work group to be the one to give hand signals to equipment operators · Be aware of footing at all times · Be sure that all heavy equipment has a backup alarm · Be sure that only qualified people operate heavy equipment · Use chains, hoists, straps, and other equipment to safely move heavy materials · Use proper personal lifting techniques. (Use your legs, not your back) · Never walk directly in back of, or to the side of, heavy equipment without the operator’s knowledge · Never use a piece of equipment unless you are familiar with its operation. This applies to heavy as well as light equipment (for example, chain saws) · Make sure all precautions have been taken before moving pipe sections and other materials to be utilized during this project as they are extremely heavy. Let the equipment, not your body, do the moving 17 · Be sure that no underground or overhead power lines, sewer lines, gas lines, or telephone lines will present a hazard in the work area 7.3 SANITATION Onsite sanitation facilities (e.g., wash stations, etc.) may be provided for use by field personnel assigned to the work if work activities involve the direct handling of contaminated soils and groundwater. 8.0 DECONTAMINATION The process of removing or neutralizing contaminants that have accumulated on personnel and equipment is critical to personnel protection. Decontamination protects workers from hazardous substances that may contaminate and eventually permeate the protective clothing, respiratory equipment, tools, vehicles, and other equipment used on site. Decontamination protects site personnel in the following ways: minimizing the transfer of harmful materials into clean areas; preventing the mixing of incompatible chemicals; and protecting the community by preventing uncontrolled transportation of contaminants from the site. General – Each time an employee enters the Contamination Reduction Zone from the Exclusion Zone, he/she just make a thorough self-examination. Equipment must be removed without exposure to the wearer. Hands and face must be scrubbed before eating or use of tobacco or cosmetic products to avoid accidental ingestion of wastes. Footwear must be changed prior to leaving the Contamination Reduction Zone to avoid “tracking” of contaminants outside the area. Clothing – The Contractor will provide all required protective clothing. Protective clothes will be left in the change facility. No clothing (including boots) is to be worn or carried away from the site. Soiled clothing is to be disposed of as appropriate. Respirators – All required respirators will be provided and maintained by the Contractor and will be cleaned daily. Cleaning and maintenance will be performed in accordance with the appropriate OSHA standard (29 CFR 1910.134). 18 Packaging of Waste Items – All disposable clothing and other contaminated material will be placed in containers for storage on-site. Personnel will make a conscious effort to minimize the volume of contaminated materials. Legible and understandable precautionary labels will be affixed prominently to containers of contaminated scrap, waste, debris, and clothing. Containers will be disposed with other solids in an EPA-approved manner. 8.1 PERSONAL DECONTAMINATION Minimum measures to be undertaken for decontamination are outlined below. These measures are to be followed, as applicable, unless the SSO specifies that a higher level of decontamination is warranted, and accordingly, sets forth upgraded decontamination procedures. MINIMUM MEASURES FOR DECONTAMINATION STATION PROCEDURES 1. Equipment Drop 1. Deposit equipment used on site (tools, sampling devices and containers, monitoring instruments, radios, clipboards, etc.) on plastic drop cloths or in different containers with plastic liners. During hot weather operations, a cool down station may be set up within this area. 2. Outer Garment, Boots and Gloves Wash and Rinse 2. Scrub outer boots, outer gloves and fully encapsulating suit with decon solution or detergent and water. Rinse off using copious amounts of water. 3. Outer Boot and Glove Removal 3. Remove outer boots and gloves. Deposit in container with plastic liner. 4. Tank Change 4. If worker leaves Exclusion Zone to change air tanks, this is the last step in the decontamination procedure. Worker’s air tank is exchanged, new outer gloves and boot covers donned, joints taped, and worker returns to duty. 5. Boot, Gloves and Outer Garment Removal 5. Boots, fully-encapsulated suit, inner gloves removed and deposited in separate containers lined with plastic. 6. SCBA Removal 6. SCBA backpack and facepiece is removed (avoid touching face with fingers). SCBA deposited on plastic sheets. 7. Field Wash 7. Hands and face are thoroughly washed. Shower as soon as possible. 19 EQUIPMENT NEEDED TO PERFORM MINIMUM DECONTAMINATION MEASURES STATION EQUIPMENT 1 A. Various Size Containers B. Plastic Liners C. Plastic Drop Cloths 2 A. Container (20-30 Gallons) B. Decon. Solution or Detergent Water C. Rinse Water D. 2-3 Long-Handled, Soft Bristled Scrub Brushes 3 A. Container (20-30 Gallons) B. Plastic Liners C. Bench or Stools 4 A. Air Tanks or Masks and Cartridges, depending Upon Level. B. Tape C. Boot Covers D. Gloves 5 A. Containers (20-30 Gallons) B. Plastic Liners C. Bench or Stools 6 A. Plastic Sheets B. Basin or Bucket C. Soap and Towels D. Bench or Stools 8.2 EQUIPMENT DECONTAMINATION Any items taken into the Exclusion Zone will be assumed to be contaminated. In general, vehicles, equipment, and materials brought into the Exclusion Zone will remain in the Exclusion Zone until no longer necessary to the project. 20 All contaminated vehicles and equipment will be decontaminated before they are taken off- site. The Contractor will provide and maintain the following facilities for equipment decontamination: - equipment decontamination pad - contaminated water collection system - high-pressure water or steam cleaners - trisodium phosphate detergent - wire brushes and scrapers 9.0 TRAINING 9.1 BASIC TRAINING All employees who will perform work at the site must have completed environmental and safety training as approved and/or provided by CES, the Owner, the Contractor, or if required, by 3rd party General Contractor. 9.2 SITE-SPECIFIC TRAINING Employees assigned to the site may, as needed, be given site-specific training and field experience to include the following topics: - Acute and chronic effects of the toxic chemicals found at the site - Routes of potential exposure and field activities which could result in such exposure - Need for personal protection, types of protection, fit effectiveness and limitations - Medical surveillance program - Work zones established at the site - Prohibited activities in the Exclusion and Contamination Reduction Zones - Engineering controls and safe work practices associated with each employee’s work assignment, including dust control measures - Personal and equipment decontamination procedures - Emergency response procedures - Basic operational safety, emphasizing hazards expected on-site - Drum handling procedures - Spill control - Sampling procedures - Site communication procedures 21 10.0 HEALTH MONITORING 10.1 PHYSICAL EXAMINATION The Contractor may require all of its field workers to pass a pre-employment medical examination prior to working at the site. The examination shall include a complete medical and occupational history, and an evaluation from the attending physician as to whether the employee is qualified to work in areas where exposure to chemicals or physical stress is possible, and is physically able to use protective equipment, including respirators. 10.2 HEAT STRESS Subsurface investigation tasks, assignments, projects etc will, or may be conducted during all four season, winter, spring, summer and fall. Accordingly, warm temperatures during these time periods may put extra physical stress on the body. Long periods of exposure to heat may cause illness, particularly if the employee is not accustomed to working in hot areas. Also, heat builds up inside protective clothing, so there is a risk of heat stress even if outside temperatures are moderate. The signs, symptoms and treatment of heat stress are outlined below. All individuals participating in work in the Exclusion Zone and Contamination Reduction Zones should be monitored regularly for heat stress symptoms. Heat Cramps Symptoms: painful muscle spasms Cause: profuse sweating and drinking large amounts of water Treatment: provide liquids with electrolytes (sodium, potassium) like diluted Gatorade 22 Heat Exhaustion Symptoms: weakness, fatigue, dizziness; pale, cool, moist skin; heavy sweating; Headache; nausea; and fainting Cause: reduced blood volume resulting from dehydration from profuse sweating and insufficient replacement of water and salts Treatment: If worker is conscious, rest in cool place; replace water and electrolytes lost in sweat; if unconscious, get medical help immediately. DO NOT give liquids if person is unconscious Heat Stroke Symptoms: very dry, hot skin with red mottled or bluish appearance; confusion; Convulsions; unconsciousness; rapidly rising temperature Cause: body becomes overheated because the worker does not sweat. Can be fatal. Treatment: call for medical help immediately; move person to cool place; remove PPE; use wet towels or water and fan to cool while waiting for help. 10.4 COLD STRESS Subsurface investigation tasks, assignments, projects etc will, or may be conducted during all four season, winter, spring, summer and fall. Accordingly, cold temperatures during these time periods may put extra physical stress on the body. Long periods of exposure to cold may cause illness, particularly if the employee is not accustomed to working in cold areas. Cold stress occurs by driving down the body’s skin temperature and eventually the body temperature (core temperature). The signs, symptoms and treatment of cold stress are outlined below. All individuals participating in work in the Exclusion Zone and Contamination Reduction Zones should be monitored regularly for cold stress symptoms. 23 Hypothermia: Symptoms: shivering, reduced circulation, slow/weak pulse, slowed breathing, lack of coordination, irritability, confusion, sleepy behavior Cause: body heat is lost faster than it can be replaced and normal body temperature drops below 95 degrees F Treatment: move person to warm and dry area, remove wet clothes and replace with dry clothes, layer with blankets, give warm sweetened liquids, if unconscious, get medical help immediately. DO NOT give liquids if person is unconscious Frostbite Symptoms: reddened skin, with development of gray/white patches, numbness, firm or hard parts affected, blisters Cause: freezing of skin and underlying tissues typically affecting extremities, particularly the feet and hands Treatment: move person to warm and dry area, remove wet clothes and replace with dry clothes, layer with blankets, give warm sweetened liquids, if unconscious, get medical help immediately. DO NOT give liquids if person is unconscious. DO NOT rub affected area, DO NOT break blisters, DO NOT try to directly warm the frostbite areas without medical attention Trench Foot Symptoms: redness of skin, swelling, numbness, blisters Cause: prolonged exposure to wet and cold temperatures, constantly wet and cold feet, wet and cold feet lose heat 25x faster than dry feet Treatment: call for medical help immediately; remove the shoes, boots, wet socks, dry the feet 24 10.5 SELF MONITORING While at the site, CES employees and sub-contractors will be required to monitor their own health and that of their co-workers. Visual observations include: - behavioral changes - change in appetite - coordination losses - gum and lip discoloration - increased salivation - pupil dilation - sensation losses - skin rashes - slurred speech Any abnormalities or changes are to be reported to the physician and investigated immediately. Such aspects could be symptoms of toxic exposure and must not be allowed to persist without medical attention. In addition, all accidents and injuries, no matter how small, are to be reported to the SSO and investigated. 11.0 SITE STANDARD OPERATING PROCEDURES 11.1 WORK PRACTICES The need to exercise caution in the performance of specific work tasks is made more acute due to weather conditions, restricted mobility, and reduced peripheral vision caused by the protective gear itself, the need to maintain the integrity of the protective gear, and the increased difficulty in communicating caused by respirators. Work at the site will be conducted according to established procedures and guidelines for the safety and health of all involved. Among the most important of these principles for working at the site are: - In any unknown situation, always assume the worst conditions and plan accordingly - Establish and maintain communication 25 - Minimize contact with excavated or contaminated materials. Plan work work areas, decontamination areas, and procedures to accomplish this. Do not place equipment on drums or on the ground. Do not sit or stand on drums or other materials - Employ disposable items when possible to minimize risks during decontamination and possible cross-contamination during sampling/handling. This will require a common-sense approach to potential risks and costs - Smoking, eating, or drinking after entering the work zone and before decontamination will not be allowed. Oral ingestion of contaminants from your hands are a likely means of introduction of the toxic substances into the body - Avoid heat and other work stresses relating to wearing the protective gear. Work breaks and proper tracking are planned to prevent stress-related accidents or fatigue - Maintain monitoring systems. Conditions can change quickly if sub-surface areas of contamination are penetrated - Be observant of not only your own immediate surroundings but also that of others. It is a team effort to notice and warn of impending dangerous situations. Extra precautions are necessary when working near heavy equipment while utilizing personal protective gear, as vision, hearing, and communication may be restricted by the protective gear - Be aware that chemical contaminants may aggravate or worsen symptoms of other illnesses or intoxication. Avoid use of alcohol and working when ill 11.2 COMMUNICATION PROCEDURES Personnel in the Exclusion Zone shall remain within sight of other project personnel, and should work in conjunction with another individual. Since it is not anticipated that the project area will encompass a large area at any given time, radio communication will not be required. 26 The following standard hand signals will be used in the event that communication is required amongst workers in and/or between the Exclusion Zone and Contamination Reduction Zone. Hand gripping throat Out of air, cannot breathe Grip partner’s wrist, or both Leave area immediately Hands around partner’s waist Rotating hands above the head Need assistance Right hand thumb up OK, I’m all right, I understand Right hand thumb down No, negative 12.0 EMERGENCY PROCEDURES 12.1 GENERAL A comprehensive emergency response plan has been developed to handle all on-site emergencies. A list of site conditions which might require implementation of the plan includes but is not limited to: - Fire or explosion on-site - Serious employee injury - Accumulation of combustible gases or vapors at concentrations greater than background - Oxygen concentration below 19.5% - Unsafe working conditions, such as inclement weather or hazardous material releases - Major release of toxic materials for which appropriate PPE is not being worn by workers 27 12.2 RESPONSIBILITIES The emergency coordinator is the SSO (Greg Hans) or assigned CES representative working onsite; the alternate or back-up is the Environmental Engineer (Chuck Heleine). The emergency coordinator is responsible for: - Assessing the situation and determining whether an emergency exists which requires activating the plan - Directing all efforts in the area, including evacuating personnel and minimizing property loss - Ensuring that outside emergency services such as fire departments, police, ambulance, and hospitals are notified when necessary - Directing the shut-down of site operations when necessary - Notifying regulatory agencies as necessary 28 12.3 EMERGENCY CONTACT LIST Emergency Contact Phone Number Environmental PM: Greg Hans, PMP 617.828.9948 (M) CES Group Engineers, LLP 704.325.5408 (D) Other SSO (if assigned by by Env PM) Carolina Soil Investigations (Drillers) 704.539.5279 (assigned CSI field crew chief) Back-up PM Chuck Heleine 704.308.7916 (M) CES Group Engineers, LLP Police: North Carolina Highway Patrol 911 Sparta Police Department 336.372.4252 Hospital: Alleghany Memorial Hospital 336.372.5511 233 Doctors Square Sparta, NC 28675 Fire: Sparta Alleghany Fire Department 336.372.4957 Doctor: Alleghany Memorial Hospital 336.372.5511 Ambulance 911 NCDENR (Winston-Salem Region) 336.776.9800 Directions to the nearest hospital: Alleghany Memorial Hospital, 233 Doctors Square, Sparta, NC 28675 Refer to Appendix C. 29 12.4 PERSONNEL INJURY IN THE EXCLUSION ZONE When there is an injury in the Exclusion Zone, a continuous horn blast will be sounded as an emergency signal (as applicable). Upon the sounding of the emergency signal, all site personnel shall assemble in the personnel decontamination area. Rescue personnel will enter the Exclusion Zone (if required) to remove the injured person. The SSO, or CES representative, will evaluate the nature of the injury and call for an ambulance (if needed), and the affected person will be decontaminated to the extent possible prior to movement to the Support Zone. The appropriate first aid will be administered. No persons shall re-enter the Exclusion Zone until the cause of the injury or symptom is determined. 12.5 PERSONAL INJURY IN THE SUPPORT ZONE Upon notification of an injury in the Support Zone, the SSO, or CES representative, will assess the nature of the injury. If the injury or absence of the injured person does not affect the performance of site personnel, operations may continue while appropriate first aid and follow-up is initiated. If the injury increases the risk to others, the designated emergency signal (continuous horn blast) shall be sounded, and all site personnel shall move to the decontamination line for further instructions. Activities on-site will stop until the added risk is removed or minimized. 12.6 FIRE OR EXPLOSION Upon notification of a fire or explosion on-site, a continuous horn blast will be sounded, and all site personnel will assemble at the decontamination area. The fire department must be alerted and all personnel moved as soon as possible to a safe distance. 12.7 PERSONAL PROTECTIVE EQUIPMENT FAILURE If any site worker experiences a failure or alteration of protective equipment which may alter the protection factor, that person and his/her work partner must immediately leave the Exclusion Zone. Re-entry shall not be permitted until the equipment has been appropriately repaired or replaced. 12.8 POLLUTANT DISCHARGES/SPILLS In the event of an unauthorized discharge of pollutants or contaminants into the soil, sewers, or ambient air, the person first finding such an incident should immediately notify the Project Manager and/or the SSO. The Project Manager and/or SSO will immediately notify Greg Hans or Chuck Heleine and the Local Fire / Emergency Management agency (Alleghany County Emergency Management at 336.372.6220). APPENDIX A SAFETY DATA SHEETS (BENZENE) SAFETY DATA SHEET SDS ID NO.:0156MAR019 Revision Date 05/14/2015 1. IDENTIFICATION Product Name:Marathon Petroleum Benzene Synonym:Benzene; Cyclohexatriene Product Code:0156MAR019 Chemical Family:Petroleum Hydrocarbon Recommended Use:Solvent. Chemical intermediate. Restrictions on Use:All others. SDS information:1-419-421-3070 Emergency Telephone:1-877-627-5463 2. HAZARD IDENTIFICATION Classification OSHA Regulatory Status This chemical is considered hazardous by the 2012 OSHA Hazard Communication Standard (29 CFR 1910.1200) Skin corrosion/irritation Category 2 Serious eye damage/eye irritation Category 2A Germ cell mutagenicity Category 1B Carcinogenicity Category 1A Specific target organ toxicity (repeated exposure)Category 1 Aspiration toxicity Category 1 Acute aquatic toxicity Category 2 Hazards Not Otherwise Classified (HNOC) Static accumulating flammable liquid Label elements EMERGENCY OVERVIEW Manufacturer, Importer, or Responsible Party Name and Address: MARATHON PETROLEUM COMPANY LP 539 South Main Street Findlay, OH 45840 Flammable liquids Category 2 Danger HIGHLY FLAMMABLE LIQUID AND VAPOR May accumulate electrostatic charge and ignite or explode SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 1 of 10 May be fatal if swallowed and enters airways Causes skin irritation _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Precautionary Statements - Prevention Obtain special instructions before use Do not handle until all safety precautions have been read and understood Keep away from heat/sparks/open flames/hot surfaces. - No smoking Keep container tightly closed Ground/bond container and receiving equipment Use explosion-proof electrical/ventilating/lighting/equipment Use only non-sparking tools. Take precautionary measures against static discharge Do not breathe dust/fume/gas/mist/vapors/spray Do not eat, drink or smoke when using this product Wash hands and any possibly exposed skin thoroughly after handling Wear protective gloves/protective clothing/eye protection/face protection Avoid release to the environment Precautionary Statements - Response IF exposed or concerned: Get medical attention IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing If eye irritation persists: Get medical attention IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water/shower If skin irritation occurs: Get medical attention Wash contaminated clothing before reuse IF SWALLOWED: Immediately call a POISON CENTER or doctor Do NOT induce vomiting In case of fire: Use water spray, fog or regular foam for extinction Precautionary Statements - Storage Store in a well-ventilated place. Keep cool Store locked up Precautionary Statements - Disposal Dispose of contents/container at an approved waste disposal plant 3. COMPOSITION/INFORMATION ON INGREDIENTS Benzene is a six carbon aromatic petroleum hydrocarbon. Composition Information: Name CAS Number % Concentration Benzene 71-43-2 99-100 All concentrations are percent by weight unless material is a gas. Gas concentrations are in percent by volume. Causes serious eye irritation May cause genetic defects May cause cancer Causes damage to organs (blood, blood-forming organs, immune system) through prolonged or repeated exposure Toxic to aquatic life Appearance Clear Liquid Physical State Liquid Odor Sweet , Distinct SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 2 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 4. FIRST AID MEASURES First Aid Measures General Advice:In case of accident or if you feel unwell, seek medical advice immediately (show directions for use or safety data sheet if possible). Inhalation:Remove to fresh air. If not breathing, institute rescue breathing. If breathing is difficult, ensure airway is clear, give oxygen and continue to monitor. If heart has stopped, immediately begin cardiopulmonary resuscitation (CPR). Keep affected person warm and at rest. GET IMMEDIATE MEDICAL ATTENTION. Skin Contact:Immediately wash exposed skin with plenty of soap and water while removing contaminated clothing and shoes. May be absorbed through the skin in harmful amounts. Get medical attention if irritation persists. Place contaminated clothing in closed container until cleaned or discarded. If clothing is to be laundered, inform the person performing the operation of contaminant's hazardous properties. Destroy contaminated, non-chemical resistant footwear. Eye Contact:Flush immediately with large amounts of water for at least 15 minutes. Eyelids should be held away from the eyeball to ensure thorough rinsing. Gently remove contacts while flushing. Get medical attention if irritation persists. Ingestion:Do not induce vomiting because of danger of aspirating liquid into lungs, causing serious damage and chemical pneumonitis. If spontaneous vomiting occurs, keep head below hips, or if patient is lying down, turn body and head to side to prevent aspiration and monitor for breathing difficulty. Never give anything by mouth to an unconscious person. Keep affected person warm and at rest. GET IMMEDIATE MEDICAL ATTENTION. Most important signs and symptoms, both short-term and delayed with overexposure Adverse Effects:Overexposure to vapors may cause eye, skin and respiratory irritation. Headache, drowsiness, dizziness, loss of coordination, disorientation and fatigue. Prolonged and repeated contact may cause defatting and drying of the skin and may lead to irritation and/or dermatitis. Prolonged or repeated exposure may cause adverse effects on blood, blood-forming organs, and immune system. Indication of any immediate medical attention and special treatment needed Notes To Physician:INHALATION: This material (or a component) sensitizes the myocardium to the effects of sympathomimetic amines. Epinephrine and other sympathomimetic drugs may initiate cardiac arrhythmias in individuals exposed to this material. Administration of sympathomimetic drugs should be avoided. INGESTION: This material represents a significant aspiration and chemical pneumonitis hazard. Induction of emesis is not recommended. 5. FIRE-FIGHTING MEASURES Suitable extinguishing media For small fires, Class B fire extinguishing media such as CO2, dry chemical, foam (AFFF/ATC) or water spray can be used. For large fires, water spray, fog or foam (AFFF/ATC) can be used. Firefighting should be attempted only by those who are adequately trained and equipped with proper protective equipment. Unsuitable extinguishing media Do not use straight water streams to avoid spreading fire. SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 3 of 10 Specific hazards arising from the chemical This product has been determined to be a highly flammable liquid per the OSHA Hazard Communication Standard and should be handled accordingly. Vapors may travel along the ground or be moved by ventilation and ignited by many sources such as pilot _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 lights, sparks, electric motors, static discharge, or other ignition sources at locations distant from material handling. Flashback can occur along vapor trail. For additional fire related information, see NFPA 30 or the Emergency Response Guidebook 130. Hazardous combustion products Smoke, carbon monoxide, and other products of incomplete combustion. Explosion data Sensitivity to Mechanical Impact No. Sensitivity to Static Discharge Yes. Special protective equipment and precautions for firefighters Firefighters should wear full protective clothing and positive-pressure self-contained breathing apparatus (SCBA) with a full face-piece, as appropriate. Avoid using straight water streams. Water may be ineffective in extinguishing low flash point fires, but can be used to cool exposed surfaces. Avoid excessive water spray application. Water spray and foam (AFFF/ATC) must be applied carefully to avoid frothing and from as far a distance as possible. Keep run-off water out of sewers and water sources. Additional firefighting tactics FIRES INVOLVING TANKS OR CAR/TRAILER LOADS: Fight fire from maximum distance or use unmanned hose holders or monitor nozzles. Cool containers with flooding quantities of water until well after the fire is out. Do not direct water at source of leak or safety devices; icing may occur. Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank. ALWAYS stay away from tanks engulfed in fire. For massive fire, use unmanned hose holders or monitor nozzles: if this is impossible, withdraw from area and let fire burn. EVACUATION: Consider initial downwind evacuation for at least 1000 feet. If tank, rail car or tank truck is involved in a fire, ISOLATE for 5280 feet (1 mile) in all directions; also, consider initial evacuation of 5280 feet (1 mile) in all directions. 6. ACCIDENTAL RELEASE MEASURES Personal precautions:Keep public away. Isolate and evacuate area. Shut off source if safe to do so. Eliminate all ignition sources. Protective equipment:Use personal protection measures as recommended in Section 8. Emergency procedures:Advise authorities and National Response Center (800-424-8802) if the product has entered a water course or sewer. Notify local health and pollution control agencies, if appropriate. Environmental precautions:Avoid release to the environment. Avoid subsoil penetration. Methods and materials for containment: Contain liquid with sand or soil. Methods and materials for cleaning up: Use suitable absorbent materials such as vermiculite, sand, or clay to clean up residual liquids. Recover and return free product to proper containers. When recovering free liquids ensure all equipment is grounded and bonded. Use only non-sparking tools. 7. HANDLING AND STORAGE Safe Handling Precautions:NEVER SIPHON THIS PRODUCT BY MOUTH. Static accumulating flammable liquid. Use appropriate grounding and bonding practices. Bonding and grounding may be insufficient to eliminate the hazard from static electricity. Do not expose to heat, open flames, strong oxidizers or other sources of ignition. Use only non-sparking tools. Do not cut, drill, grind or weld on empty containers since explosive residues may remain. Avoid contact with skin, eyes and clothing. Avoid breathing vapors or mists. Use only with adequate ventilation. Use personal protection measures as recommended in Section 8. Exercise good personal hygiene including removal of soiled clothing and prompt washing with soap and water. Comply with all applicable EPA, OSHA, NFPA and consistent state and local requirements. NFPA Health 2 Flammability 3 Instability 0 Special Hazard - SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 4 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Hydrocarbons are basically non-conductors of electricity and can become electrostatically charged during mixing, filtering, pumping at high flow rates or loading and transfer operations. If this charge reaches a sufficiently high level, sparks can form that may ignite the vapors of flammable liquids. Sudden release of hot organic chemical vapors or mists from process equipment operating under elevated temperature and pressure, or sudden ingress of air into vacuum equipment may result in ignition of vapors or mists without the presence of obvious ignition sources. Nozzle spouts must be kept in contact with the containers or tank during the entire filling operation. Storage Conditions:Store in properly closed containers that are appropriately labeled and in a cool, well-ventilated area. Incompatible Materials Strong oxidizing agents. 8. EXPOSURE CONTROLS/PERSONAL PROTECTION Name ACGIH TLV OSHA PELS:OSHA - Vacated PELs NIOSH IDLH Benzene 71-43-2 0.5 ppm TWA 2.5 ppm STEL Skin - potential significant contribution to overallexposure by the cutaneous route TWA: 10 ppm (applies to industry segments exempt from the benzene standard)TWA: 1 ppm STEL: 5 ppm (see 29 CFR 1910.1028) 25 ppm Ceiling 1 ppm TWA 5 ppm STEL 500 ppm Notes:The manufacturer has voluntarily elected to provide exposure limits contained in OSHA's 1989 air contaminants standard in its SDSs, even though certain of those exposure limits were vacated in 1992. Engineering measures:Local or general exhaust required in an enclosed area or when there is inadequate ventilation. Use mechanical ventilation equipment that is explosion-proof. Personal protective equipment Eye protection:Use goggles or face-shield if the potential for splashing exists. Skin and body protection:For non-exposure jobs or where exposure is expected to be less than 15 minutes, neoprene gloves can be used to prevent skin contact. For all exposure jobs expected to be greater than 15 minutes, Viton® gloves should be used to prevent skin contact. Glove suitability is based on workplace conditions and usage. Contact the glove manufacturer for specific advice on glove selection and breakthrough times. Depending upon the conditions of use and specific work situations, additional protective equipment and/or clothing may be required to control exposures. Respiratory protection:Approved organic vapor chemical cartridge or supplied air respirators should be worn for exposures to any components exceeding the established exposure limits. Observe respirator assigned protection factors (APFs) criteria cited in federal OSHA 29 CFR 1910.134. Self-contained breathing apparatus should be used for fire fighting. Hygiene measures:Handle in accordance with good industrial hygiene and safety practice. Avoid contact with skin, eyes and clothing. 9. PHYSICAL AND CHEMICAL PROPERTIES Information on basic physical and chemical properties Physical State Liquid Appearance Clear Liquid Color Colorless Odor Sweet , Distinct Odor Threshold 12 ppmv Property Values (Method) SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 5 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Melting Point / Freezing Point 5.5 °C / 42 °F Initial Boiling Point / Boiling Range 80 °C / 176 °F Flash Point -11 °C / 12 °F Evaporation Rate 5.1 (Butyl acetate = 1) Flammability (solid, gas)Not applicable. Flammability Limit in Air (%): Upper Flammability Limit:7.1 Lower Flammability Limit:1.4 Explosion limits:No data available. Vapor Pressure 3.21 psia @ 100°F Vapor Density 2.7 (Air = 1) Specific Gravity / Relative Density 0.883 Water Solubility No data available. Solubility in other solvents No data available. Partition Coefficient No data available. Decomposition temperature No data available. pH:Not applicable. Autoignition Temperature 562 °C / 1044 °F Kinematic Viscosity 0.593 cSt @ 100°F Dynamic Viscosity No data available. Explosive Properties No data available. VOC Content (%)No data available. Density No data available. Bulk Density Not applicable. 10. STABILITY AND REACTIVITY Chemical stability The material is stable at 70°F (21°C ), 760 mmHg pressure. Possibility of hazardous reactions None under normal processing. Hazardous polymerization Will not occur. Conditions to avoid Sources of heat or ignition. Incompatible Materials Strong oxidizing agents. Hazardous decomposition products None known under normal conditions of use. 11. TOXICOLOGICAL INFORMATION Potential short-term adverse effects from overexposures Inhalation Overexposure may cause respiratory tract irritation and central nervous system depression. Breathing high concentrations of this material, for example, in a confined space or by intentional abuse, can cause irregular heartbeats which can cause death. Eye contact Irritating to eyes. Skin contact Irritating to skin. May be absorbed through the skin in harmful amounts. Effects may become more serious with repeated or prolonged contact. Ingestion May be fatal if swallowed or vomited and enters airways. May cause irritation of the mouth, throat and gastrointestinal tract. May cause central nervous system depression or effects. Acute toxicological data Name Oral LD50 Dermal LD50 Inhalation LC50 Benzene > 2000 mg/kg (Rat)> 5000 mg/kg (Rabbit)> 20 mg/l (Rat) 4 h Reactivity The product is non-reactive under normal conditions. SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 6 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 71-43-2 Delayed and immediate effects as well as chronic effects from short and long-term exposure BENZENE: Studies of workers exposed to benzene show clear evidence that overexposure can cause cancer and other diseases of the blood forming organs including Acute Myelogenous Leukemia (AML), and Aplastic Anemia (AA), an often fatal disease. Some studies suggest overexposure to benzene may also be associated with Myelodysplastic Syndrome (MDS). Findings from a case control study of workers exposed to benzene was reported during the 2009 Benzene Symposium in Munich included an increase in Acute Myeloid Leukemias and Non-Hodgkins Lymphoid Neoplasms (NHLN) of the subtype follicular lymphoma (FL) in some occupational categories. Some studies of workers exposed to benzene have shown an association with increased rates of chromosome aberrations in circulating lymphocytes. One study of women workers exposed to benzene suggested a weak association with irregular menstruation. However, other studies of workers exposed to benzene have not demonstrated clear evidence of an effect on fertility or reproductive outcome in humans. Benzene can cross the placenta and affect the developing fetus. Cases of AA have been reported in the offspring of persons severely overexposed to benzene. Studies in laboratory animals indicate that prolonged, repeated exposure to high levels of benzene vapor can cause bone marrow suppression and cancer in multiple organ systems. Studies in laboratory animals show evidence of adverse effects on male reproductive organs following high levels of exposure but no significant effects on reproduction have been observed. Embryotoxicity has been reported in studies of laboratory animals but effects were limited to reduced fetal weight and minor skeletal variations. Benzene has been classified as a proven human carcinogen by OSHA and a Group 1 (Carcinogenic to Humans) material by IARC. The current proposed IARC classification for benzene is summarized as follows: Sufficient evidence for Acute Myeloid Leukemia; limited evidence for Acute Lymphatic Leukemia, Chronic Lymphatic Leukemia, Non-Hodgkin Lymphoma, and Multiple Myeloma. Adverse effects related to the physical, chemical and toxicological characteristics Signs and Symptoms Overexposure to vapors may cause eye, skin and respiratory irritation. Inhalation of high vapor concentrations may cause symptoms like headache, dizziness, tiredness, nausea and vomiting Repeated or prolonged skin contact may cause drying, reddening, itching and cracking. Sensitization Not expected to be a skin or respiratory sensitizer. Mutagenic effects May cause genetic defects. Carcinogenicity Cancer designations are listed in the table below Name ACGIH (Class) IARC (Class) NTP OSHA Benzene 71-43-2 Confirmed human carcinogen (A1) Carcinogenic to humans (1)Known to be human carcinogen Known carcinogen Reproductive toxicity None known. Specific Target Organ Toxicity (STOT) - single exposure Not classified. Specific Target Organ Toxicity (STOT) - repeated exposure Blood. Blood-forming organs. Immune system. Aspiration hazard May be fatal if swallowed or vomited and enters airways. 12. ECOLOGICAL INFORMATION Ecotoxicity This product should be considered toxic to aquatic organisms. Name Algae/aquatic plants Fish Toxicity to Crustacea SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 7 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Microorganisms Benzene 71-43-2 72-hr EC50 = 29 mg/l Algae 96-hr LC50 = 5.3 mg/l Rainbow trout (flow-through) -48-hr EC50 = 8.76-15.6 mg/l Daphnia magna (Static) Persistence and degradability Readily biodegradable in the environment. Bioaccumulation Not expected to bioaccumulate in aquatic organisms. Mobility in soil May partition into air, soil and water. Other adverse effects No information available. 13. DISPOSAL CONSIDERATIONS Description of Waste Residues This material may be a flammable liquid waste. Safe Handling of Wastes Handle in accordance with applicable local, state, and federal regulations. Use personal protection measures as required. Use appropriate grounding and bonding practices. Use only non-sparking tools. Do not expose to heat, open flames, strong oxidizers or other sources of ignition. No smoking. Disposal of Wastes / Methods of Disposal The user is responsible for determining if any discarded material is a hazardous waste (40 CFR 262.11). Dispose of in accordance with federal, state and local regulations. Methods of Contaminated Packaging DisposalEmpty containers should be completely drained and then discarded or recycled, if possible. Do not cut, drill, grind or weld on empty containers since explosive residues may be present. Dispose of in accordance with federal, state and local regulations. 14. TRANSPORT INFORMATION DOT (49 CFR 172.101): UN Proper Shipping Name:Benzene UN/Identification No:UN 1114 Class:3 Packing Group:II TDG (Canada): UN Proper Shipping Name:Benzene UN/Identification No:UN 1114 Transport Hazard Class(es):3 Packing Group:II 15. REGULATORY INFORMATION US Federal Regulatory Information: US TSCA Chemical Inventory Section 8(b):This product and/or its components are listed on the TSCA Chemical Inventory. EPA Superfund Amendment & Reauthorization Act (SARA): SARA Section 302:This product does not contain any component(s) included on EPA's Extremely Hazardous Substance (EHS) List. Name CERCLA/SARA - Section 302 Extremely Hazardous Substances and TPQs Benzene NA SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 8 of 10 _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 SARA Section 304:This product may contain component(s) identified either as an EHS or a CERCLA Hazardous substance which in case of a spill or release may be subject to SARA reporting requirements: Name Hazardous Substances RQs Benzene 10 SARA Section 311/312:The following EPA hazard categories apply to this product: Acute Health Hazard Chronic Health Hazard Fire Hazard SARA Section 313:This product may contain component(s), which if in exceedance of the de minimus threshold, may be subject to the reporting requirements of SARA Title III Section 313 Toxic Release Reporting (Form R). Name CERCLA/SARA 313 Emission reporting: Benzene 0.1 % de minimis concentration State and Community Right-To-Know Regulations: The following component(s) of this material are identified on the regulatory lists below: Benzene Louisiana Right-To-Know:Not Listed California Proposition 65:Carcinogen, initial date 2/27/87 Developmental toxicity, initial date 12/26/97 Male reproductive toxicity, initial date 12/26/97 New Jersey Right-To-Know:SN 0197 Pennsylvania Right-To-Know:Environmental hazard; Special hazardous substance Massachusetts Right-To Know:Carcinogen; Extraordinarily hazardous Florida Substance List:Not Listed Rhode Island Right-To-Know:Toxic (skin); Flammable (skin); Carcinogen (skin) Michigan Critical Materials Register List:100 lb Annual usage threshold Massachusetts Extraordinarily Hazardous Substances:Carcinogen; Extraordinarily hazardous California - Regulated Carcinogens:Not Listed Pennsylvania RTK - Special Hazardous Substances: Present New Jersey - Special Hazardous Substances:Carcinogen; Flammable - third degree; Mutagen New Jersey - Environmental Hazardous Substances List: SN 0197 TPQ: 500 lb Illinois - Toxic Air Contaminants:Present New York - Reporting of Releases Part 597 - List of Hazardous Substances: 10 lb RQ (air); 1 lb RQ (land/water) Canada DSL/NDSL Inventory:This product and/or its components are listed either on the Domestic Substances List (DSL) or are exempt. Canadian Regulatory Information:This product has been classified in accordance with the hazard criteria of the Controlled Products Regulations and the SDS contains all of the information required by those regulations. Name Canada - WHMIS: Classifications of Substances: Canada - WHMIS: Ingredient Disclosure: Benzene B2,D2A,D2B 0.1% Note:Not applicable. SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 9 of 10 16. OTHER INFORMATION _____________________________________________________________________________________________ 0156MAR019 Marathon Petroleum Benzene Revision Date 05/14/2015 Prepared By Toxicology and Product Safety Revision Notes Revision Date 05/14/2015 Disclaimer The information provided in this Safety Data Sheet is correct to the best of our knowledge, information and belief at the date of its publication. The information is intended as guidance for safe handling, use, processing, storage, transportation, accidental release, clean-up and disposal and is not considered a warranty or quality specification. The information relates only to the specific material designated and may not be valid for such material used in combination with any other materials or in any process, unless specified in the text. SDS ID NO.: 0156MAR019 Product name: Marathon Petroleum Benzene Page 10 of 10 APPENDIX B EMERGENCY PHONE NUMBERS Emergency Contact Phone Number Environmental PM: Greg Hans, PMP 617.828.9948 (M) CES Group Engineers, LLP 704.325.5408 (D) Other SSO (if assigned by by Env PM) Carolina Soil Investigations (Drillers) 704.539.5279 (assigned CSI field crew chief) Back-up PM Chuck Heleine 704.308.7916 (M) CES Group Engineers, LLP Police: North Carolina Highway Patrol 911 Sparta Police Department 336.372.4252 Hospital: Alleghany Memorial Hospital 336.372.5511 233 Doctors Square Sparta, NC 28675 Fire: Sparta Alleghany Fire Department 336.372.4957 Doctor: Alleghany Memorial Hospital 336.372.5511 Ambulance 911 NCDENR (Winston-Salem Region) 336.776.9800 Directions to the nearest hospital: Alleghany Memorial Hospital, 233 Doctors Square, Sparta, NC 28675 Refer to Appendix C. APPENDIX C ROUTE TO HOSPITAL Starting at approximate address of 1497 NC 21 S, Sparta, NC 28675 End at Alleghany Memorial Hospital, 233 Doctors Square, Sparta, NC 28675 APPENDIX D SOIL AND GROUNDWATER WELL LABORATORY REPORTS AND CHAIN- OF-CUSTODY RECORDS   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   5/8/2023 CES Group Greg Hans 3525 Whitehall Park Dr. Suite 150 Charlotte, NC, 28273 Ref: Analytical Testing Lab Report Number: 23-116-0001 Client Project Description: G&B Oil Co. Dear Greg Hans: Waypoint Analytical, LLC (Charlotte) received sample(s) on 4/26/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 33 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Page 1 of 1 00016/23-116-0001 Page 2 of 33 Report Number: Sample Summary Table Client Project Description: 23-116-0001 G&B Oil Co. Lab No Client Sample ID Matrix Date Collected Date Received 04/25/2023 10:45Solids 94843 MW-1 04/26/2023 08:33 Page 3 of 33 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-116-0001 Report Limit Project:G&B Oil Co. V 94843MW-1 97.8 05/03/2023 13:496010DChromiummg/Kg - dry 0.995 20.1 05/04/2023 14:026010DLeadmg/Kg - dry 0.462 J0.012 04/26/2023 12:398260DAcetonemg/Kg - dry 0.002 J0.005 04/26/2023 12:398260Dn-Butylbenzene mg/Kg - dry 0.0006 J0.001 04/26/2023 12:398260Dsec-Butyl benzene mg/Kg - dry 0.0007 J0.0007 04/26/2023 12:398260DEthylbenzenemg/Kg - dry 0.0007 J0.0010 04/26/2023 12:398260DIsopropylbenzenemg/Kg - dry 0.0005 JB0.006 04/26/2023 12:398260DMethylene Chloride mg/Kg - dry 0.001 0.031 04/26/2023 12:398260DNaphthalenemg/Kg - dry 0.001 J0.004 04/26/2023 12:398260Dn-Propylbenzene mg/Kg - dry 0.0006 0.033 04/26/2023 12:398260D1,2,4-Trimethylbenzene mg/Kg - dry 0.0006 0.012 04/26/2023 12:398260D1,3,5-Trimethylbenzene mg/Kg - dry 0.0006 J3.93 05/03/2023 12:178270E1-Methylnaphthalene mg/Kg - dry 3.72 J5.81 05/03/2023 12:178270E2-Methylnaphthalene mg/Kg - dry 3.51 J19.1 05/05/2023 13:24MADEP-EPH Aliphatic C9-C18 mg/Kg - dry 10.7 J21.9 05/05/2023 13:24MADEP-EPH Aliphatic C19-C36 mg/Kg - dry 14.3 14.6 05/03/2023 10:30SW-DRYWT Moisture % Page 4 of 33   Client: CES Group CASE NARRATIVE Project: G&B Oil Co. Lab Report Number: 23-116-0001 Date: 5/8/2023 Metals Analysis Method 6010D Sample 94843 (MW-1) QC Batch No: V32730/V32590 The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Sample 94468 Analyte: Lead QC Batch No: V32664/V32590 The matrix spike and/or the matrix spike duplicate was outside quality control acceptance ranges. A dilution test was performed and passed quality control acceptance ranges. No matrix interference is suspected. Sample 94468 Analyte: Lead QC Batch No: V32664/V32590 LRB failed high. Result 10x concentration. Result not affected. Sample 94843 (MW-1) Analyte: Lead QC Batch No: V32664/V32590 LRB failed high. Result 10x concentration. Result not affected. Volatile Organic Compounds - GC/MS Method 8260D Analyte: 1,1-Dichloroethene QC Batch No: V32436/V32435 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Bromomethane QC Batch No: V32436/V32435 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Carbon Tetrachloride QC Batch No: V32436/V32435 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Chloroethane QC Batch No: V32436/V32435 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Trichlorofluoromethane QC Batch No: V32436/V32435 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Semivolatile Organic Compounds - GC/MS Method 8270E Analyte: Benzo(b)fluoranthene QC Batch No: V32788/V32670 Page 5 of 33   CCV saw high recoveries for this compound. All other QC was within method parameters. Results for this compound are estimated high. Analyte: Benzo(g,h,i)perylene QC Batch No: V32788/V32670 CCV saw high recoveries for this compound. All other QC was within method parameters. Results for this compound are estimated high. Page 6 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 14.6 %Moisture 1 05/03/23 10:30 SW-DRYWTPEB 97.8 mg/Kg - dry 0.995 2.93Chromium 5 05/03/23 13:49 6010DJKC 20.1 mg/Kg - dry 0.462 1.76Lead 5 05/04/23 14:02 6010DJKC Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 7 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V32435 04/26/23 08:00 0.012 J mg/Kg - dry 0.002 0.023Acetone 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.023Acrolein 1 04/26/23 12:39 V32436TBL <0.0009 mg/Kg - dry 0.0009 0.023Acrylonitrile 1 04/26/23 12:39 V32436TBL <0.0007 mg/Kg - dry 0.0007 0.005Benzene 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.005Bromobenzene 1 04/26/23 12:39 V32436TBL <0.0009 mg/Kg - dry 0.0009 0.005Bromochloromethane 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005Bromodichloromethane 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005Bromoform 1 04/26/23 12:39 V32436TBL <0.002 mg/Kg - dry 0.002 0.011 Bromomethane 1 04/26/23 12:39 V32436TBL 0.005 J mg/Kg - dry 0.0006 0.005n-Butylbenzene 1 04/26/23 12:39 V32436TBL 0.001 J mg/Kg - dry 0.0007 0.005sec-Butyl benzene 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.005tert-Butyl benzene 1 04/26/23 12:39 V32436TBL <0.0007 mg/Kg - dry 0.0007 0.005Carbon Disulfide 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005Carbon Tetrachloride 1 04/26/23 12:39 V32436TBL <0.0008 mg/Kg - dry 0.0008 0.005Chlorobenzene 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005 Chlorodibromomethane 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.011Chloroethane 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005Chloroform 1 04/26/23 12:39 V32436TBL <0.0007 mg/Kg - dry 0.0007 0.011Chloromethane 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.0052-Chlorotoluene 1 04/26/23 12:39 V32436TBL <0.0005 mg/Kg - dry 0.0005 0.0054-Chlorotoluene 1 04/26/23 12:39 V32436TBL <0.0009 mg/Kg - dry 0.0009 0.005Di-Isopropyl Ether (DIPE)1 04/26/23 12:39 V32436TBL Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 8 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V32435 04/26/23 08:00 <0.0005 mg/Kg - dry 0.0005 0.0111,2-Dibromo-3-Chloropropane 1 04/26/23 12:39 V32436TBL <0.0007 mg/Kg - dry 0.0007 0.0051,2-Dibromoethane 1 04/26/23 12:39 V32436TBL <0.0007 mg/Kg - dry 0.0007 0.005Dibromomethane 1 04/26/23 12:39 V32436TBL <0.0004 mg/Kg - dry 0.0004 0.0051,2-Dichlorobenzene 1 04/26/23 12:39 V32436TBL <0.0004 mg/Kg - dry 0.0004 0.0051,3-Dichlorobenzene 1 04/26/23 12:39 V32436TBL <0.0007 mg/Kg - dry 0.0007 0.0051,4-Dichlorobenzene 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.011Dichlorodifluoromethane 1 04/26/23 12:39 V32436TBL <0.0010 mg/Kg - dry 0.0010 0.0051,1-Dichloroethane 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005 1,2-Dichloroethane 1 04/26/23 12:39 V32436TBL <0.0009 mg/Kg - dry 0.0009 0.0051,1-Dichloroethene 1 04/26/23 12:39 V32436TBL <0.0009 mg/Kg - dry 0.0009 0.005cis-1,2-Dichloroethene 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005trans-1,2-Dichloroethene 1 04/26/23 12:39 V32436TBL <0.0005 mg/Kg - dry 0.0005 0.0051,2-Dichloropropane 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.0051,3-Dichloropropane 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.0052,2-Dichloropropane 1 04/26/23 12:39 V32436TBL <0.0009 mg/Kg - dry 0.0009 0.005 1,1-Dichloropropene 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.005cis-1,3-Dichloropropene 1 04/26/23 12:39 V32436TBL <0.0009 mg/Kg - dry 0.0009 0.005trans-1,3-Dichloropropene 1 04/26/23 12:39 V32436TBL 0.0007 J mg/Kg - dry 0.0007 0.005Ethylbenzene 1 04/26/23 12:39 V32436TBL <0.0010 mg/Kg - dry 0.0010 0.058Ethyl Tertiary Butyl Ether (ETBE)1 04/26/23 12:39 V32436TBL <0.0009 mg/Kg - dry 0.0009 0.011Hexachlorobutadiene 1 04/26/23 12:39 V32436TBL <0.0008 mg/Kg - dry 0.0008 0.011n-Hexane 1 04/26/23 12:39 V32436TBL Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 9 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V32435 04/26/23 08:00 <0.0007 mg/Kg - dry 0.0007 0.0232-Hexanone 1 04/26/23 12:39 V32436TBL 0.0010 J mg/Kg - dry 0.0005 0.005Isopropylbenzene 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.0054-Isopropyl toluene 1 04/26/23 12:39 V32436TBL <0.0008 mg/Kg - dry 0.0008 0.023Methyl Ethyl Ketone (MEK)1 04/26/23 12:39 V32436TBL <0.0007 mg/Kg - dry 0.0007 0.005Methyl tert-butyl ether (MTBE)1 04/26/23 12:39 V32436TBL <0.017 mg/Kg - dry 0.017 0.0234-Methyl-2-Pentanone 1 04/26/23 12:39 V32436TBL 0.006 JB mg/Kg - dry 0.001 0.011Methylene Chloride 1 04/26/23 12:39 V32436TBL 0.031 mg/Kg - dry 0.001 0.011Naphthalene 1 04/26/23 12:39 V32436TBL 0.004 J mg/Kg - dry 0.0006 0.005 n-Propylbenzene 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005Styrene 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1,2-Tetrachloroethane 1 04/26/23 12:39 V32436TBL <0.0004 mg/Kg - dry 0.0004 0.0051,1,2,2-Tetrachloroethane 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005Tetrachloroethene 1 04/26/23 12:39 V32436TBL <0.0008 mg/Kg - dry 0.0008 0.005Toluene 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.0111,2,3-Trichlorobenzene 1 04/26/23 12:39 V32436TBL <0.0007 mg/Kg - dry 0.0007 0.011 1,2,4-Trichlorobenzene 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.0051,1,1-Trichloroethane 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.0051,1,2-Trichloroethane 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.005Trichloroethene 1 04/26/23 12:39 V32436TBL <0.002 mg/Kg - dry 0.002 0.011Trichlorofluoromethane 1 04/26/23 12:39 V32436TBL <0.0008 mg/Kg - dry 0.0008 0.0051,2,3-Trichloropropane 1 04/26/23 12:39 V32436TBL 0.033 mg/Kg - dry 0.0006 0.0051,2,4-Trimethylbenzene 1 04/26/23 12:39 V32436TBL Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 10 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 8260D Prep Batch(es):V32435 04/26/23 08:00 0.012 mg/Kg - dry 0.0006 0.0051,3,5-Trimethylbenzene 1 04/26/23 12:39 V32436TBL <0.0005 mg/Kg - dry 0.0005 0.011Vinyl Acetate 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.011Vinyl Chloride 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.005o-Xylene 1 04/26/23 12:39 V32436TBL <0.001 mg/Kg - dry 0.001 0.011m,p-Xylene 1 04/26/23 12:39 V32436TBL <0.0006 mg/Kg - dry 0.0006 0.005Xylene (Total)1 04/26/23 12:39 V32436 Surrogate: 4-Bromofluorobenzene 96.9 Limits: 70-130%04/26/23 12:391 TBL V32436 Surrogate: Dibromofluoromethane 99.6 Limits: 84-123%04/26/23 12:391 TBL V32436 Surrogate: Toluene-d8 87.8 Limits: 76-129%04/26/23 12:391 TBL V32436 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V32670 05/02/23 09:40 <4.07 mg/Kg - dry 4.07 23.2Acenaphthene 1 05/03/23 12:17 V32788ANG <3.69 mg/Kg - dry 3.69 23.2Acenaphthylene 1 05/03/23 12:17 V32788ANG <5.34 mg/Kg - dry 5.34 23.2Aniline 1 05/03/23 12:17 V32788ANG <5.02 mg/Kg - dry 5.02 23.2Anthracene 1 05/03/23 12:17 V32788ANG <4.88 mg/Kg - dry 4.88 23.2Benzo(a)anthracene 1 05/03/23 12:17 V32788ANG <5.16 mg/Kg - dry 5.16 23.2 Benzo(a)pyrene 1 05/03/23 12:17 V32788ANG <5.13 mg/Kg - dry 5.13 23.2Benzo(b)fluoranthene 1 05/03/23 12:17 V32788ANG <4.78 mg/Kg - dry 4.78 23.2Benzo(g,h,i)perylene 1 05/03/23 12:17 V32788ANG <4.81 mg/Kg - dry 4.81 23.2Benzo(k)fluoranthene 1 05/03/23 12:17 V32788ANG Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 11 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V32670 05/02/23 09:40 <20.4 mg/Kg - dry 20.4 70.3Benzoic Acid 1 05/03/23 12:17 V32788ANG <3.69 mg/Kg - dry 3.69 23.2Benzyl alcohol 1 05/03/23 12:17 V32788ANG <4.15 mg/Kg - dry 4.15 23.2Bis(2-Chloroethoxy)methane 1 05/03/23 12:17 V32788ANG <3.76 mg/Kg - dry 3.76 23.2Bis(2-Chloroethyl)ether 1 05/03/23 12:17 V32788ANG <4.78 mg/Kg - dry 4.78 11.6Bis(2-Chloroisopropyl)ether 1 05/03/23 12:17 V32788ANG <4.22 mg/Kg - dry 4.22 23.2Bis(2-ethylhexyl)phthalate 1 05/03/23 12:17 V32788ANG <3.83 mg/Kg - dry 3.83 23.24-Bromophenyl phenyl ether 1 05/03/23 12:17 V32788ANG <3.97 mg/Kg - dry 3.97 11.6Butyl benzyl phthalate 1 05/03/23 12:17 V32788ANG <3.24 mg/Kg - dry 3.24 23.2 4-Chloro-3-methylphenol 1 05/03/23 12:17 V32788ANG <3.93 mg/Kg - dry 3.93 11.64-Chloroaniline 1 05/03/23 12:17 V32788ANG <4.07 mg/Kg - dry 4.07 23.22-Chloronaphthalene 1 05/03/23 12:17 V32788ANG <3.45 mg/Kg - dry 3.45 23.22-Chlorophenol 1 05/03/23 12:17 V32788ANG <4.43 mg/Kg - dry 4.43 35.14-Chlorophenyl phenyl ether 1 05/03/23 12:17 V32788ANG <4.99 mg/Kg - dry 4.99 23.2Chrysene 1 05/03/23 12:17 V32788ANG <8.08 mg/Kg - dry 8.08 23.2Dibenz(a,h)anthracene 1 05/03/23 12:17 V32788ANG <4.18 mg/Kg - dry 4.18 23.2 Dibenzofuran 1 05/03/23 12:17 V32788ANG <3.31 mg/Kg - dry 3.31 23.21,2-Dichlorobenzene 1 05/03/23 12:17 V32788ANG <3.42 mg/Kg - dry 3.42 23.21,3-Dichlorobenzene 1 05/03/23 12:17 V32788ANG <3.43 mg/Kg - dry 3.43 11.61,4-Dichlorobenzene 1 05/03/23 12:17 V32788ANG <5.16 mg/Kg - dry 5.16 23.23,3'-Dichlorobenzidine 1 05/03/23 12:17 V32788ANG <3.36 mg/Kg - dry 3.36 23.22,4-Dichlorophenol 1 05/03/23 12:17 V32788ANG <6.32 mg/Kg - dry 6.32 23.2Diethyl phthalate 1 05/03/23 12:17 V32788ANG Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 12 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V32670 05/02/23 09:40 <6.11 mg/Kg - dry 6.11 23.2Dimethyl phthalate 1 05/03/23 12:17 V32788ANG <3.79 mg/Kg - dry 3.79 11.62,4-Dimethylphenol 1 05/03/23 12:17 V32788ANG <3.76 mg/Kg - dry 3.76 23.2Di-n-butyl phthalate 1 05/03/23 12:17 V32788ANG <8.43 mg/Kg - dry 8.43 52.74,6-Dinitro-2-methylphenol 1 05/03/23 12:17 V32788ANG <18.3 mg/Kg - dry 18.3 52.72,4-Dinitrophenol 1 05/03/23 12:17 V32788ANG <3.40 mg/Kg - dry 3.40 23.22,4-Dinitrotoluene 1 05/03/23 12:17 V32788ANG <3.79 mg/Kg - dry 3.79 23.22,6-Dinitrotoluene 1 05/03/23 12:17 V32788ANG <5.02 mg/Kg - dry 5.02 11.6Di-n-Octyl Phthalate 1 05/03/23 12:17 V32788ANG <4.32 mg/Kg - dry 4.32 23.2 Fluoranthene 1 05/03/23 12:17 V32788ANG <4.50 mg/Kg - dry 4.50 23.2Fluorene 1 05/03/23 12:17 V32788ANG <3.72 mg/Kg - dry 3.72 23.2Hexachlorobenzene 1 05/03/23 12:17 V32788ANG <3.43 mg/Kg - dry 3.43 23.2Hexachlorobutadiene 1 05/03/23 12:17 V32788ANG <5.52 mg/Kg - dry 5.52 23.2Hexachlorocyclopentadiene 1 05/03/23 12:17 V32788ANG <2.79 mg/Kg - dry 2.79 23.2Hexachloroethane 1 05/03/23 12:17 V32788ANG <6.29 mg/Kg - dry 6.29 23.2Indeno(1,2,3-cd)pyrene 1 05/03/23 12:17 V32788ANG <6.71 mg/Kg - dry 6.71 23.2 Isophorone 1 05/03/23 12:17 V32788ANG 3.93 J mg/Kg - dry 3.72 23.21-Methylnaphthalene 1 05/03/23 12:17 V32788ANG 5.81 J mg/Kg - dry 3.51 23.22-Methylnaphthalene 1 05/03/23 12:17 V32788ANG <3.41 mg/Kg - dry 3.41 23.22-Methylphenol 1 05/03/23 12:17 V32788ANG <2.99 mg/Kg - dry 2.99 23.23&4 Methylphenol 1 05/03/23 12:17 V32788ANG <5.06 mg/Kg - dry 5.06 23.2Naphthalene 1 05/03/23 12:17 V32788ANG <3.40 mg/Kg - dry 3.40 23.22-Nitroaniline 1 05/03/23 12:17 V32788ANG Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 13 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8270E Prep Batch(es):V32670 05/02/23 09:40 <4.22 mg/Kg - dry 4.22 23.23-Nitroaniline 1 05/03/23 12:17 V32788ANG <3.28 mg/Kg - dry 3.28 11.64-Nitroaniline 1 05/03/23 12:17 V32788ANG <4.07 mg/Kg - dry 4.07 11.6Nitrobenzene 1 05/03/23 12:17 V32788ANG <3.11 mg/Kg - dry 3.11 23.22-Nitrophenol 1 05/03/23 12:17 V32788ANG <4.11 mg/Kg - dry 4.11 23.24-Nitrophenol 1 05/03/23 12:17 V32788ANG <9.24 mg/Kg - dry 9.24 23.2N-Nitrosodimethylamine 1 05/03/23 12:17 V32788ANG <6.36 mg/Kg - dry 6.36 23.2N-Nitrosodiphenylamine 1 05/03/23 12:17 V32788ANG <4.15 mg/Kg - dry 4.15 23.2N-Nitroso-di-n-propylamine 1 05/03/23 12:17 V32788ANG <12.2 mg/Kg - dry 12.2 35.1 Pentachlorophenol 1 05/03/23 12:17 V32788ANG <7.31 mg/Kg - dry 7.31 23.2Phenanthrene 1 05/03/23 12:17 V32788ANG <3.93 mg/Kg - dry 3.93 23.2Phenol 1 05/03/23 12:17 V32788ANG <4.71 mg/Kg - dry 4.71 23.2Pyrene 1 05/03/23 12:17 V32788ANG <2.79 mg/Kg - dry 2.79 11.6Pyridine 1 05/03/23 12:17 V32788ANG <3.76 mg/Kg - dry 3.76 23.21,2,4-Trichlorobenzene 1 05/03/23 12:17 V32788ANG <3.38 mg/Kg - dry 3.38 23.22,4,5-Trichlorophenol 1 05/03/23 12:17 V32788ANG <3.40 mg/Kg - dry 3.40 23.2 2,4,6-Trichlorophenol 1 05/03/23 12:17 V32788ANG 8270ESurrogate: Phenol-d5 58.2 Limits: 34-121%05/03/23 12:171 ANG Surrogate: 2-Fluorobiphenyl 67.2 Limits: 44-115%05/03/23 12:171 ANG V32788 Surrogate: 2-Fluorophenol 61.9 Limits: 35-115%05/03/23 12:171 ANG V32788 Surrogate: Nitrobenzene-d5 62.0 Limits: 37-122%05/03/23 12:171 ANG V32788 Surrogate: 4-Terphenyl-d14 73.8 Limits: 54-127%05/03/23 12:171 ANG V32788 Surrogate: 2,4,6-Tribromophenol 63.0 Limits: 39-132%05/03/23 12:171 ANG V32788 Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 14 of 33 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-116-0001 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Received : 04/26/2023 G&B Oil Co. Report Date : 05/08/2023 Sample ID : Lab No : Sampled:MW-1 94843 Matrix: 4/25/2023 10:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V32729 05/03/23 10:15 19.1 J mg/Kg - dry 10.7 58.3Aliphatic C9-C18 1 05/05/23 13:24 V32862AMP 21.9 J mg/Kg - dry 14.3 58.3Aliphatic C19-C36 1 05/05/23 13:24 V32862AMP <16.5 mg/Kg - dry 16.5 58.3Aromatic C11-C22 1 05/05/23 13:24 V32862AMP MADEP-EPHSurrogate: 2-Bromonaphthalene 97.5 Limits: 40-140%05/05/23 13:241 AMP MADEP-EPHSurrogate: Chlorooctadecane 65.5 Limits: 40-140%05/05/23 13:241 AMP MADEP-EPHSurrogate: OTP Surrogate 76.4 Limits: 40-140%05/05/23 13:241 AMP Surrogate: 2-Fluorobiphenyl 98.5 Limits: 40-140%05/05/23 13:241 AMP V32862 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V32692 05/02/23 08:00 <1.43 mg/Kg - dry 1.43 9.37 Aliphatic C5-C8 100 05/02/23 16:44 V32693TBL <5.34 mg/Kg - dry 5.34 9.37Aliphatic C9-C12 100 05/02/23 16:44 V32693TBL <0.730 mg/Kg - dry 0.730 9.37Aromatic C9-C10 100 05/02/23 16:44 V32693TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)95.5 Limits: 70-130%05/02/23 16:44100 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)93.8 Limits: 70-130%05/02/23 16:44100 TBL Qualifiers/ Definitions Dilution FactorDFAnalyte detected in blankB Method Quantitation LimitMQLEstimated valueJ Page 15 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Metals Analysis 6010D V32664QC Analytical Batch(es): Analysis Method: Analysis Description: 3050B QC Prep:V32590 Associated Lab Samples: 94843 LRB-V32590 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits 05/01/23 18:190.5000.170<0.170mg/KgChromium 05/01/23 18:190.3000.0790.081mg/KgLead LCS-V32590Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10552.450.0mg/KgChromium 80-120 1105.485.00mg/KgLead 80-120 V 94468-MS-V32590 V 94468-MSD-V32590Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 56.5 92.062.750.550.59.87mg/KgChromium 105 75-125 10.4 20 18.0 30.0*19.55.055.0516.5mg/KgLead 59.0*75-125 8.0 20 V 94468-PDS-V32590Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 05/01/23 18:3798.0127mg/KgChromium 05/01/23 18:3710020.8mg/KgLead Page 1 of 16* QC Fail Date:05/08/2023 12:38 PM Page 16 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V32436QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V32435 Associated Lab Samples: 94843 LRB-V32435 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/26/23 09:550.0200.002<0.002mg/KgAcetone 04/26/23 09:550.0200.001<0.001mg/KgAcrolein 04/26/23 09:550.0200.0008<0.0008mg/KgAcrylonitrile 04/26/23 09:550.0050.0006<0.0006mg/KgBenzene 04/26/23 09:550.0050.0005<0.0005mg/KgBromobenzene 04/26/23 09:550.0050.0008<0.0008mg/KgBromochloromethane 04/26/23 09:550.0050.001<0.001mg/KgBromodichloromethane 04/26/23 09:550.0050.001<0.001mg/KgBromoform 04/26/23 09:550.0100.001<0.001mg/KgBromomethane 04/26/23 09:550.0050.0005<0.0005mg/Kgn-Butylbenzene 04/26/23 09:550.0050.0006<0.0006mg/Kgsec-Butyl benzene 04/26/23 09:550.0050.0005<0.0005mg/Kgtert-Butyl benzene 04/26/23 09:550.0050.0006<0.0006mg/KgCarbon Disulfide 04/26/23 09:550.0050.001<0.001mg/KgCarbon Tetrachloride 04/26/23 09:550.0050.0007<0.0007mg/KgChlorobenzene 04/26/23 09:550.0050.0009<0.0009mg/KgChlorodibromomethane 04/26/23 09:550.0100.0009<0.0009mg/KgChloroethane 04/26/23 09:550.0050.001<0.001mg/KgChloroform 04/26/23 09:550.0100.0006<0.0006mg/KgChloromethane 04/26/23 09:550.0050.0005<0.0005mg/Kg2-Chlorotoluene 04/26/23 09:550.0050.0004<0.0004mg/Kg4-Chlorotoluene 04/26/23 09:550.0050.0007<0.0007mg/KgDi-Isopropyl Ether (DIPE) 04/26/23 09:550.0100.0004<0.0004mg/Kg1,2-Dibromo-3-Chloropropane 04/26/23 09:550.0050.0006<0.0006mg/Kg1,2-Dibromoethane 04/26/23 09:550.0050.0006<0.0006mg/KgDibromomethane 04/26/23 09:550.0050.0003<0.0003mg/Kg1,2-Dichlorobenzene 04/26/23 09:550.0050.0004<0.0004mg/Kg1,3-Dichlorobenzene Page 2 of 16Date:05/08/2023 12:38 PM Page 17 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V32436QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V32435 Associated Lab Samples: 94843 LRB-V32435 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/26/23 09:550.0050.0006<0.0006mg/Kg1,4-Dichlorobenzene 04/26/23 09:550.0100.001<0.001mg/KgDichlorodifluoromethane 04/26/23 09:550.0050.0008<0.0008mg/Kg1,1-Dichloroethane 04/26/23 09:550.0050.001<0.001mg/Kg1,2-Dichloroethane 04/26/23 09:550.0050.0007<0.0007mg/Kg1,1-Dichloroethene 04/26/23 09:550.0050.0008<0.0008mg/Kgcis-1,2-Dichloroethene 04/26/23 09:550.0050.001<0.001mg/Kgtrans-1,2-Dichloroethene 04/26/23 09:550.0050.0004<0.0004mg/Kg1,2-Dichloropropane 04/26/23 09:550.0050.0006<0.0006mg/Kg1,3-Dichloropropane 04/26/23 09:550.0050.001<0.001mg/Kg2,2-Dichloropropane 04/26/23 09:550.0050.0008<0.0008mg/Kg1,1-Dichloropropene 04/26/23 09:550.0050.0005<0.0005mg/Kgcis-1,3-Dichloropropene 04/26/23 09:550.0050.0008<0.0008mg/Kgtrans-1,3-Dichloropropene 04/26/23 09:550.0050.0006<0.0006mg/KgEthylbenzene 04/26/23 09:550.0500.0008<0.0008mg/KgEthyl Tertiary Butyl Ether (ETBE) 04/26/23 09:550.0100.0008<0.0008mg/KgHexachlorobutadiene 04/26/23 09:550.0100.0007<0.0007mg/Kgn-Hexane 04/26/23 09:550.0200.0006<0.0006mg/Kg2-Hexanone 04/26/23 09:550.0050.0005<0.0005mg/KgIsopropylbenzene 04/26/23 09:550.0050.001<0.001mg/Kg4-Isopropyl toluene 04/26/23 09:550.0200.0007<0.0007mg/KgMethyl Ethyl Ketone (MEK) 04/26/23 09:550.0050.0006<0.0006mg/KgMethyl tert-butyl ether (MTBE) 04/26/23 09:550.0200.015<0.015mg/Kg4-Methyl-2-Pentanone 04/26/23 09:550.0100.0010.002mg/KgMethylene Chloride 04/26/23 09:550.0100.0010<0.0010mg/KgNaphthalene 04/26/23 09:550.0050.0005<0.0005mg/Kgn-Propylbenzene 04/26/23 09:550.0050.001<0.001mg/KgStyrene Page 3 of 16Date:05/08/2023 12:38 PM Page 18 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V32436QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V32435 Associated Lab Samples: 94843 LRB-V32435 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 04/26/23 09:550.0050.001<0.001mg/Kg1,1,1,2-Tetrachloroethane 04/26/23 09:550.0050.0003<0.0003mg/Kg1,1,2,2-Tetrachloroethane 04/26/23 09:550.0050.0009<0.0009mg/KgTetrachloroethene 04/26/23 09:550.0050.0007<0.0007mg/KgToluene 04/26/23 09:550.0100.0005<0.0005mg/Kg1,2,3-Trichlorobenzene 04/26/23 09:550.0100.0006<0.0006mg/Kg1,2,4-Trichlorobenzene 04/26/23 09:550.0050.001<0.001mg/Kg1,1,1-Trichloroethane 04/26/23 09:550.0050.0005<0.0005mg/Kg1,1,2-Trichloroethane 04/26/23 09:550.0050.0009<0.0009mg/KgTrichloroethene 04/26/23 09:550.0100.002<0.002mg/KgTrichlorofluoromethane 04/26/23 09:550.0050.0007<0.0007mg/Kg1,2,3-Trichloropropane 04/26/23 09:550.0050.0005<0.0005mg/Kg1,2,4-Trimethylbenzene 04/26/23 09:550.0050.0005<0.0005mg/Kg1,3,5-Trimethylbenzene 04/26/23 09:550.0100.0005<0.0005mg/KgVinyl Acetate 04/26/23 09:550.0100.0005<0.0005mg/KgVinyl Chloride 04/26/23 09:550.0050.0005<0.0005mg/Kgo-Xylene 04/26/23 09:550.0100.001<0.001mg/Kgm,p-Xylene 04/26/23 09:554-Bromofluorobenzene (S)101 70-130 04/26/23 09:55Dibromofluoromethane (S)97.2 84-123 04/26/23 09:55Toluene-d8 (S)90.2 76-129 LCS-V32435 LCSD-V32435Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.114 1141160.1160.100mg/KgAcetone 29-198 1.7 20 0.081 81.987.70.0870.100mg/KgAcrolein 70-130 6.8 20 Page 4 of 16Date:05/08/2023 12:38 PM Page 19 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V32436QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V32435 LCS-V32435 LCSD-V32435Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.097 97.81020.1020.100mg/KgAcrylonitrile 65-134 4.2 20 0.051 1031070.0530.050mg/KgBenzene 74-127 3.6 20 0.043 86.291.60.0450.050mg/KgBromobenzene 73-125 6.0 20 0.057 1161150.0570.050mg/KgBromochloromethane 72-134 0.5 20 0.054 1091110.0550.050mg/KgBromodichloromethane 75-122 1.8 20 0.054 1081070.0530.050mg/KgBromoform 66-135 0.9 20 0.035 71.489.40.0440.050mg/KgBromomethane 20-180 22.3*20 0.043 86.895.20.0470.050mg/Kgn-Butylbenzene 65-135 9.2 20 0.043 87.494.60.0470.050mg/Kgsec-Butyl benzene 66-131 7.9 20 0.043 86.493.60.0460.050mg/Kgtert-Butyl benzene 67-132 8.0 20 0.048 96.282.80.0410.050mg/KgCarbon Disulfide 61-129 14.9 20 0.045 91.81140.0560.050mg/KgCarbon Tetrachloride 64-143 21.4*20 0.050 1001030.0510.050mg/KgChlorobenzene 74-118 3.3 20 0.052 1051040.0510.050mg/KgChlorodibromomethane 73-122 1.3 20 0.037 74.691.40.0450.050mg/KgChloroethane 33-149 20.2*20 0.052 1051130.0560.050mg/KgChloroform 73-127 6.7 20 0.045 90.098.80.0490.050mg/KgChloromethane 45-143 9.3 20 0.044 88.092.80.0460.050mg/Kg2-Chlorotoluene 67-124 5.3 20 0.044 88.092.80.0460.050mg/Kg4-Chlorotoluene 71-126 5.3 20 0.050 1021040.0520.050mg/KgDi-Isopropyl Ether (DIPE)59-159 2.7 20 0.051 1031020.0510.050mg/Kg1,2-Dibromo-3-Chloropropane 55-157 1.1 20 0.052 1051090.0540.050mg/Kg1,2-Dibromoethane 70-132 3.7 20 0.055 1111120.0550.050mg/KgDibromomethane 74-133 0.3 20 0.047 95.697.80.0480.050mg/Kg1,2-Dichlorobenzene 72-123 2.2 20 0.045 91.895.80.0470.050mg/Kg1,3-Dichlorobenzene 71-120 4.2 20 0.045 91.295.40.0470.050mg/Kg1,4-Dichlorobenzene 71-123 4.5 20 Page 5 of 16* QC Fail Date:05/08/2023 12:38 PM Page 20 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V32436QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V32435 LCS-V32435 LCSD-V32435Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.045 91.098.80.0490.050mg/KgDichlorodifluoromethane 26-146 8.2 20 0.051 1031050.0520.050mg/Kg1,1-Dichloroethane 74-127 2.4 20 0.052 1051080.0530.050mg/Kg1,2-Dichloroethane 68-128 3.0 20 0.048 96.474.80.0370.050mg/Kg1,1-Dichloroethene 67-149 25.2*20 0.050 1011050.0520.050mg/Kgcis-1,2-Dichloroethene 76-134 3.8 20 0.049 98.41060.0530.050mg/Kgtrans-1,2-Dichloroethene 73-132 7.4 20 0.053 1071080.0540.050mg/Kg1,2-Dichloropropane 73-130 1.4 20 0.052 1051030.0510.050mg/Kg1,3-Dichloropropane 75-124 2.1 20 0.050 1021100.0550.050mg/Kg2,2-Dichloropropane 50-142 7.7 20 0.050 1011110.0550.050mg/Kg1,1-Dichloropropene 71-130 9.5 20 0.056 1131130.0560.050mg/Kgcis-1,3-Dichloropropene 71-125 0.3 20 0.056 1131150.0570.050mg/Kgtrans-1,3-Dichloropropene 68-123 1.7 20 0.046 93.299.60.0490.050mg/KgEthylbenzene 74-128 6.6 20 0.102 1021040.1040.100mg/KgEthyl Tertiary Butyl Ether (ETBE)70-130 1.9 20 0.049 98.21000.0500.050mg/KgHexachlorobutadiene 64-125 1.8 20 0.052 1051180.0580.050mg/Kgn-Hexane 70-130 11.3 20 0.058 1171260.0620.050mg/Kg2-Hexanone 61-157 7.0 20 0.043 86.294.80.0470.050mg/KgIsopropylbenzene 68-126 9.5 20 0.044 88.296.00.0480.050mg/Kg4-Isopropyl toluene 68-129 8.4 20 0.051 1031040.0520.050mg/KgMethyl Ethyl Ketone (MEK)63-149 1.1 20 0.052 1041060.0530.050mg/KgMethyl tert-butyl ether (MTBE)70-130 1.9 20 0.057 1151100.0550.050mg/Kg4-Methyl-2-Pentanone 57-162 3.9 20 0.043 87.889.00.0440.050mg/KgMethylene Chloride 74-129 1.3 20 0.049 99.61020.0510.050mg/KgNaphthalene 57-157 2.5 20 0.042 84.893.40.0460.050mg/Kgn-Propylbenzene 67-130 9.6 20 0.049 99.81030.0510.050mg/KgStyrene 77-121 2.7 20 Page 6 of 16* QC Fail Date:05/08/2023 12:38 PM Page 21 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V32436QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 QC Prep:V32435 LCS-V32435 LCSD-V32435Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.050 1011040.0520.050mg/Kg1,1,1,2-Tetrachloroethane 72-115 3.5 20 0.046 92.894.60.0470.050mg/Kg1,1,2,2-Tetrachloroethane 56-126 1.9 20 0.053 1071130.0560.050mg/KgTetrachloroethene 68-130 5.4 20 0.049 99.61070.0530.050mg/KgToluene 71-129 6.9 20 0.052 1051030.0510.050mg/Kg1,2,3-Trichlorobenzene 68-130 2.1 20 0.051 1031100.0550.050mg/Kg1,2,4-Trichlorobenzene 66-125 6.7 20 0.049 99.81090.0540.050mg/Kg1,1,1-Trichloroethane 67-131 8.8 20 0.051 1031030.0510.050mg/Kg1,1,2-Trichloroethane 70-133 0.5 20 0.052 1051130.0560.050mg/KgTrichloroethene 75-133 7.5 20 0.034 68.691.00.0450.050mg/KgTrichlorofluoromethane 44-146 28.0*20 0.049 98.61010.0500.050mg/Kg1,2,3-Trichloropropane 60-137 2.4 20 0.044 88.095.00.0470.050mg/Kg1,2,4-Trimethylbenzene 69-129 7.6 20 0.043 87.692.80.0460.050mg/Kg1,3,5-Trimethylbenzene 69-128 5.7 20 0.052 1041120.0560.050mg/KgVinyl Acetate 60-140 7.7 20 0.046 93.61010.0500.050mg/KgVinyl Chloride 48-147 7.2 20 0.047 95.299.00.0490.050mg/Kgo-Xylene 74-126 3.9 20 0.095 95.21010.1010.100mg/Kgm,p-Xylene 75-124 5.9 20 98.01014-Bromofluorobenzene (S)70-130 96.496.8Dibromofluoromethane (S)84-123 91.890.6Toluene-d8 (S)76-129 Page 7 of 16* QC Fail Date:05/08/2023 12:38 PM Page 22 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V32788QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V32670 Associated Lab Samples: 94843 LRB-V32670 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/03/23 10:2419.83.48<3.48mg/KgAcenaphthene 05/03/23 10:2419.83.15<3.15mg/KgAcenaphthylene 05/03/23 10:2419.84.56<4.56mg/KgAniline 05/03/23 10:2419.84.29<4.29mg/KgAnthracene 05/03/23 10:2419.84.17<4.17mg/KgBenzo(a)anthracene 05/03/23 10:2419.84.41<4.41mg/KgBenzo(a)pyrene 05/03/23 10:2419.84.38<4.38mg/KgBenzo(b)fluoranthene 05/03/23 10:2419.84.08<4.08mg/KgBenzo(g,h,i)perylene 05/03/23 10:2419.84.11<4.11mg/KgBenzo(k)fluoranthene 05/03/23 10:2460.017.4<17.4mg/KgBenzoic Acid 05/03/23 10:2419.83.15<3.15mg/KgBenzyl alcohol 05/03/23 10:2419.83.54<3.54mg/KgBis(2-Chloroethoxy)methane 05/03/23 10:2419.83.21<3.21mg/KgBis(2-Chloroethyl)ether 05/03/23 10:249.904.08<4.08mg/KgBis(2-Chloroisopropyl)ether 05/03/23 10:2419.83.60<3.60mg/KgBis(2-ethylhexyl)phthalate 05/03/23 10:2419.83.27<3.27mg/Kg4-Bromophenyl phenyl ether 05/03/23 10:249.903.39<3.39mg/KgButyl benzyl phthalate 05/03/23 10:2419.82.77<2.77mg/Kg4-Chloro-3-methylphenol 05/03/23 10:249.903.36<3.36mg/Kg4-Chloroaniline 05/03/23 10:2419.83.48<3.48mg/Kg2-Chloronaphthalene 05/03/23 10:2419.82.95<2.95mg/Kg2-Chlorophenol 05/03/23 10:2430.03.78<3.78mg/Kg4-Chlorophenyl phenyl ether 05/03/23 10:2419.84.26<4.26mg/KgChrysene 05/03/23 10:2419.86.90<6.90mg/KgDibenz(a,h)anthracene 05/03/23 10:2419.83.57<3.57mg/KgDibenzofuran 05/03/23 10:2419.82.83<2.83mg/Kg1,2-Dichlorobenzene 05/03/23 10:2419.82.92<2.92mg/Kg1,3-Dichlorobenzene Page 8 of 16Date:05/08/2023 12:38 PM Page 23 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V32788QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V32670 Associated Lab Samples: 94843 LRB-V32670 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/03/23 10:249.902.93<2.93mg/Kg1,4-Dichlorobenzene 05/03/23 10:2419.84.41<4.41mg/Kg3,3'-Dichlorobenzidine 05/03/23 10:2419.82.87<2.87mg/Kg2,4-Dichlorophenol 05/03/23 10:2419.85.40<5.40mg/KgDiethyl phthalate 05/03/23 10:2419.85.22<5.22mg/KgDimethyl phthalate 05/03/23 10:249.903.24<3.24mg/Kg2,4-Dimethylphenol 05/03/23 10:2419.83.21<3.21mg/KgDi-n-butyl phthalate 05/03/23 10:2445.07.20<7.20mg/Kg4,6-Dinitro-2-methylphenol 05/03/23 10:2445.015.6<15.6mg/Kg2,4-Dinitrophenol 05/03/23 10:2419.82.90<2.90mg/Kg2,4-Dinitrotoluene 05/03/23 10:2419.83.24<3.24mg/Kg2,6-Dinitrotoluene 05/03/23 10:249.904.29<4.29mg/KgDi-n-Octyl Phthalate 05/03/23 10:2419.83.69<3.69mg/KgFluoranthene 05/03/23 10:2419.83.84<3.84mg/KgFluorene 05/03/23 10:2419.83.18<3.18mg/KgHexachlorobenzene 05/03/23 10:2419.82.93<2.93mg/KgHexachlorobutadiene 05/03/23 10:2419.84.71<4.71mg/KgHexachlorocyclopentadiene 05/03/23 10:2419.82.38<2.38mg/KgHexachloroethane 05/03/23 10:2419.85.37<5.37mg/KgIndeno(1,2,3-cd)pyrene 05/03/23 10:2419.85.73<5.73mg/KgIsophorone 05/03/23 10:2419.83.18<3.18mg/Kg1-Methylnaphthalene 05/03/23 10:2419.83.00<3.00mg/Kg2-Methylnaphthalene 05/03/23 10:2419.82.91<2.91mg/Kg2-Methylphenol 05/03/23 10:2419.82.55<2.55mg/Kg3&4 Methylphenol 05/03/23 10:2419.84.32<4.32mg/KgNaphthalene 05/03/23 10:2419.82.90<2.90mg/Kg2-Nitroaniline 05/03/23 10:2419.83.60<3.60mg/Kg3-Nitroaniline Page 9 of 16Date:05/08/2023 12:38 PM Page 24 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V32788QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V32670 Associated Lab Samples: 94843 LRB-V32670 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/03/23 10:249.902.80<2.80mg/Kg4-Nitroaniline 05/03/23 10:249.903.48<3.48mg/KgNitrobenzene 05/03/23 10:2419.82.66<2.66mg/Kg2-Nitrophenol 05/03/23 10:2419.83.51<3.51mg/Kg4-Nitrophenol 05/03/23 10:2419.87.89<7.89mg/KgN-Nitrosodimethylamine 05/03/23 10:2419.85.43<5.43mg/KgN-Nitrosodiphenylamine 05/03/23 10:2419.83.54<3.54mg/KgN-Nitroso-di-n-propylamine 05/03/23 10:2430.010.4<10.4mg/KgPentachlorophenol 05/03/23 10:2419.86.24<6.24mg/KgPhenanthrene 05/03/23 10:2419.83.36<3.36mg/KgPhenol 05/03/23 10:2419.84.02<4.02mg/KgPyrene 05/03/23 10:249.902.38<2.38mg/KgPyridine 05/03/23 10:2419.83.21<3.21mg/Kg1,2,4-Trichlorobenzene 05/03/23 10:2419.82.89<2.89mg/Kg2,4,5-Trichlorophenol 05/03/23 10:2419.82.90<2.90mg/Kg2,4,6-Trichlorophenol 05/03/23 10:242-Fluorobiphenyl (S)73.4 44-115 05/03/23 10:242-Fluorophenol (S)64.4 35-115 05/03/23 10:24Nitrobenzene-d5 (S)69.8 37-122 05/03/23 10:244-Terphenyl-d14 (S)81.4 54-127 05/03/23 10:242,4,6-Tribromophenol (S)64.3 39-132 05/03/23 10:24Phenol-d5 (S)62.0 34-121 LCS-V32670 LCSD-V32670Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 36.5 73.074.837.450.0mg/KgAcenaphthene 40-123 2.4 20 Page 10 of 16Date:05/08/2023 12:38 PM Page 25 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V32788QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V32670 LCS-V32670 LCSD-V32670Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 37.8 75.676.838.450.0mg/KgAcenaphthylene 32-132 1.5 20 55.4 11111456.850.0mg/KgAniline 12-197 2.4 20 39.3 78.682.841.450.0mg/KgAnthracene 47-123 5.2 20 41.4 82.883.441.750.0mg/KgBenzo(a)anthracene 49-126 0.7 20 44.5 89.091.445.750.0mg/KgBenzo(a)pyrene 45-129 2.6 20 52.0 10410552.750.0mg/KgBenzo(b)fluoranthene 45-132 1.3 20 57.1 11411557.350.0mg/KgBenzo(g,h,i)perylene 43-134 0.3 20 45.7 91.492.646.350.0mg/KgBenzo(k)fluoranthene 47-132 1.3 20 35.2 70.478.439.250.0mg/KgBenzoic Acid 10-83 10.7 20 39.9 79.884.642.350.0mg/KgBenzyl alcohol 29-122 5.8 20 37.5 75.079.639.850.0mg/KgBis(2-Chloroethoxy)methane 36-121 5.9 20 32.4 64.869.834.950.0mg/KgBis(2-Chloroethyl)ether 31-120 7.4 20 37.4 74.880.040.050.0mg/KgBis(2-Chloroisopropyl)ether 33-131 6.7 20 47.7 95.495.847.950.0mg/KgBis(2-ethylhexyl)phthalate 51-133 0.4 20 38.5 77.079.239.650.0mg/Kg4-Bromophenyl phenyl ether 46-124 2.8 20 46.7 93.494.047.050.0mg/KgButyl benzyl phthalate 48-132 0.6 20 39.7 79.480.440.250.0mg/Kg4-Chloro-3-methylphenol 45-122 1.2 20 36.4 72.869.634.850.0mg/Kg4-Chloroaniline 17-106 4.4 20 36.2 72.475.437.750.0mg/Kg2-Chloronaphthalene 41-114 4.0 20 36.2 72.477.838.950.0mg/Kg2-Chlorophenol 34-121 7.1 20 39.3 78.681.040.550.0mg/Kg4-Chlorophenyl phenyl ether 45-121 3.0 20 38.5 77.077.238.650.0mg/KgChrysene 50-124 0.2 20 55.9 11211054.850.0mg/KgDibenz(a,h)anthracene 45-134 1.9 20 36.8 73.675.237.650.0mg/KgDibenzofuran 44-120 2.1 20 31.4 62.869.034.550.0mg/Kg1,2-Dichlorobenzene 33-117 9.4 20 30.4 60.866.633.350.0mg/Kg1,3-Dichlorobenzene 30-115 9.1 20 Page 11 of 16Date:05/08/2023 12:38 PM Page 26 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V32788QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V32670 LCS-V32670 LCSD-V32670Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 30.0 60.066.633.350.0mg/Kg1,4-Dichlorobenzene 31-115 10.4 20 38.5 77.071.035.550.0mg/Kg3,3'-Dichlorobenzidine 22-121 8.1 20 38.8 77.679.239.650.0mg/Kg2,4-Dichlorophenol 40-122 2.0 20 40.9 81.883.041.550.0mg/KgDiethyl phthalate 50-124 1.4 20 40.1 80.280.440.250.0mg/KgDimethyl phthalate 48-124 0.2 20 49.2 98.410351.450.0mg/Kg2,4-Dimethylphenol 30-127 4.3 20 46.3 92.694.247.150.0mg/KgDi-n-butyl phthalate 51-128 1.7 20 39.0 78.079.039.550.0mg/Kg4,6-Dinitro-2-methylphenol 29-132 1.2 20 49.6 99.297.048.550.0mg/Kg2,4-Dinitrophenol 27-129 2.2 20 43.3 86.686.643.350.0mg/Kg2,4-Dinitrotoluene 48-126 0.0 20 42.1 84.283.841.950.0mg/Kg2,6-Dinitrotoluene 46-124 0.4 20 66.6 13313467.050.0mg/KgDi-n-Octyl Phthalate 45-140 0.5 20 38.9 77.878.239.150.0mg/KgFluoranthene 50-127 0.5 20 38.6 77.278.439.250.0mg/KgFluorene 43-125 1.5 20 36.8 73.674.437.250.0mg/KgHexachlorobenzene 45-122 1.0 20 32.9 65.870.635.350.0mg/KgHexachlorobutadiene 32-123 7.0 20 35.0 70.072.236.150.0mg/KgHexachlorocyclopentadiene 32-117 3.0 20 30.8 61.667.233.650.0mg/KgHexachloroethane 28-117 8.6 20 61.7 12311959.650.0mg/KgIndeno(1,2,3-cd)pyrene 45-133 3.4 20 33.8 67.669.634.850.0mg/KgIsophorone 30-122 2.9 20 33.7 67.470.835.450.0mg/Kg1-Methylnaphthalene 40-119 4.9 20 34.1 68.272.036.050.0mg/Kg2-Methylnaphthalene 38-122 5.4 20 37.8 75.680.440.250.0mg/Kg2-Methylphenol 32-122 6.1 20 35.4 70.872.236.150.0mg/Kg3&4 Methylphenol 34-119 1.9 20 32.7 65.470.235.150.0mg/KgNaphthalene 35-123 7.0 20 44.7 89.489.644.850.0mg/Kg2-Nitroaniline 44-127 0.2 20 Page 12 of 16Date:05/08/2023 12:38 PM Page 27 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Semivolatile Organic Compounds - GC/MS 8270E V32788QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V32670 LCS-V32670 LCSD-V32670Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 39.6 79.271.835.950.0mg/Kg3-Nitroaniline 33-119 9.8 20 40.4 80.878.439.250.0mg/Kg4-Nitroaniline 63-147 3.0 20 32.3 64.669.834.950.0mg/KgNitrobenzene 34-122 7.7 20 37.1 74.279.439.750.0mg/Kg2-Nitrophenol 36-123 6.7 20 42.5 85.086.043.050.0mg/Kg4-Nitrophenol 30-132 1.1 20 28.9 57.862.031.050.0mg/KgN-Nitrosodimethylamine 10-146 7.0 20 46.4 92.894.047.050.0mg/KgN-Nitrosodiphenylamine 38-127 1.2 20 37.4 74.879.639.850.0mg/KgN-Nitroso-di-n-propylamine 36-120 6.2 20 42.9 85.885.242.650.0mg/KgPentachlorophenol 25-133 0.7 20 38.4 76.878.439.250.0mg/KgPhenanthrene 50-121 2.0 20 35.7 71.476.038.050.0mg/KgPhenol 34-121 6.2 20 39.0 78.077.238.650.0mg/KgPyrene 47-127 1.0 20 18.9 37.840.220.150.0mg/KgPyridine 10-80 6.1 20 32.3 64.668.434.250.0mg/Kg1,2,4-Trichlorobenzene 34-118 5.7 20 39.8 79.681.040.550.0mg/Kg2,4,5-Trichlorophenol 41-124 1.7 20 39.1 78.280.840.450.0mg/Kg2,4,6-Trichlorophenol 39-126 3.2 20 73.475.82-Fluorobiphenyl (S)44-115 66.770.72-Fluorophenol (S)35-115 67.673.2Nitrobenzene-d5 (S)37-122 82.081.84-Terphenyl-d14 (S)54-127 72.672.32,4,6-Tribromophenol (S)39-132 63.768.1Phenol-d5 (S)34-121 Page 13 of 16Date:05/08/2023 12:38 PM Page 28 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Massachusetts EPH MADEP-EPH V32862QC Analytical Batch(es): Analysis Method: Analysis Description: MAEPH (Prep) QC Prep:V32729 Associated Lab Samples: 94843 LRB-V32729 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/05/23 10:5950.09.20<9.20mg/KgAliphatic C9-C18 05/05/23 10:5950.012.2<12.2mg/KgAliphatic C19-C36 05/05/23 10:5950.014.2<14.2mg/KgAromatic C11-C22 05/05/23 10:592-Fluorobiphenyl (S)101 40-140 05/05/23 10:592-Bromonaphthalene (S)99.0 40-140 05/05/23 10:59Chlorooctadecane (S)64.6 40-140 05/05/23 10:59OTP Surrogate (S)78.7 40-140 LCS-V32729 LCSD-V32729Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 39.8 66.365.539.360.0mg/KgAliphatic C9-C18 40-140 1.2 50 68.2 85.278.262.680.0mg/KgAliphatic C19-C36 40-140 8.5 50 199 117108184170mg/KgAromatic C11-C22 40-140 7.8 50 1151132-Fluorobiphenyl (S)40-140 1141112-Bromonaphthalene (S)40-140 76.669.8Chlorooctadecane (S)40-140 96.893.0OTP Surrogate (S)40-140 Page 14 of 16Date:05/08/2023 12:38 PM Page 29 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. QC Prep Batch Method: Massachusetts VPH MADEP-VPH V32693QC Analytical Batch(es): Analysis Method: Analysis Description: MAVPH (Prep) QC Prep:V32692 Associated Lab Samples: 94843 LRB-V32692 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/02/23 16:208.001.22<1.22mg/KgAliphatic C5-C8 05/02/23 16:208.004.56<4.56mg/KgAliphatic C9-C12 05/02/23 16:208.000.624<0.624mg/KgAromatic C9-C10 05/02/23 16:202,5-Dibromotoluene (FID) (S)80.8 70-130 05/02/23 16:202,5-Dibromotoluene (PID) (S)112 70-130 LCS-V32692 LCSD-V32692Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 32.1 10097.531.232.0mg/KgAliphatic C5-C8 70-130 2.8 50 35.9 11211035.132.0mg/KgAliphatic C9-C12 70-130 2.2 50 13.1 12212313.210.7mg/KgAromatic C9-C10 70-130 0.7 50 81.677.02,5-Dibromotoluene (FID) (S)70-130 1121122,5-Dibromotoluene (PID) (S)70-130 Page 15 of 16Date:05/08/2023 12:38 PM Page 30 of 33 Quality Control Data 23-116-0001Report No: Project Description: Client ID:CES Group G&B Oil Co. Dry Weight Determination SW-DRYWT V32708QC Analytical Batch: Analysis Method: Analysis Description: V 94843-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 05/03/23 10:304.913.914.6%Moisture V 95266-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 05/03/23 10:303.625.124.2%Moisture Page 16 of 16Date:05/08/2023 12:38 PM Page 31 of 33 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-116-0001 CES Group 00012 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 4.8C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:04/26/2023 09:20:59 Special precautions or instructions included? Comments: Page 32 of 33 Page 33 of 33   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   5/12/2023 CES Group Greg Hans 3525 Whitehall Park Dr. Suite 150 Charlotte, NC, 28273 Ref: Analytical Testing Lab Report Number: 23-125-0005 Client Project Description: G&B Oil Company Dear Greg Hans: Waypoint Analytical, LLC (Charlotte) received sample(s) on 5/5/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 30 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Page 1 of 1 00016/23-125-0005 Page 2 of 30 Report Number: Sample Summary Table Client Project Description: 23-125-0005 G&B Oil Company Lab No Client Sample ID Matrix Date Collected Date Received 05/04/2023 10:00Aqueous 95510 MW-1 05/05/2023 08:28 Page 3 of 30 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-125-0005 Report Limit Project:G&B Oil Company V 95510MW-1 J56.7 05/09/2023 17:436200BAcetoneµg/L 18.0 9.18 05/09/2023 17:436200Bn-Butylbenzene µg/L 1.80 J2.38 05/09/2023 17:436200Bsec-Butyl benzene µg/L 2.00 297 05/09/2023 17:436200BEthylbenzeneµg/L 1.70 27.7 05/09/2023 17:436200BIsopropylbenzeneµg/L 1.80 J3.62 05/09/2023 17:436200B4-Isopropyl toluene µg/L 0.890 J16.2 05/09/2023 17:436200BMethyl Ethyl Ketone (MEK)µg/L 7.10 166 05/09/2023 17:436200BNaphthaleneµg/L 4.70 49.7 05/09/2023 17:436200Bn-Propylbenzene µg/L 1.90 J3.22 05/09/2023 17:436200BStyreneµg/L 2.20 232 05/09/2023 17:436200B1,2,4-Trimethylbenzene µg/L 1.90 303 05/09/2023 17:436200B1,3,5-Trimethylbenzene µg/L 1.80 117 05/09/2023 17:436200Bo-Xylene µg/L 2.10 156 05/09/2023 17:436200Bm,p-Xylene µg/L 4.20 273 05/09/2023 17:436200BXylene (Total)µg/L 2.10 J5.22 05/08/2023 19:46625.1 Benzoic Acid µg/L 1.10 J5.71 05/08/2023 19:46625.1 2,4-Dimethylphenol µg/L 1.57 J70.2 05/10/2023 20:16MADEP-EPH Aliphatic C9-C18 µg/L 62.7 J22905/10/2023 20:16MADEP-EPH Aromatic C11-C22 µg/L 136 56.6 05/05/2023 14:19MADEP-VPH Aliphatic C5-C8 µg/L 11.5 3880 05/05/2023 14:43MADEP-VPH Aliphatic C9-C12 µg/L 258 2420 05/05/2023 14:43MADEP-VPH Aromatic C9-C10 µg/L 40.2 Page 4 of 30   Client: CES Group CASE NARRATIVE Project: G&B Oil Company Lab Report Number: 23-125-0005 Date: 5/12/2023 625.1 - Base/Neutrals and Acids by GC/MS Method 625.1 Sample 95510 (MW-1) QC Batch No: V33064/V32898 Surrogate(s) were flagged for recoveries in the associated project sample. During the extraction step, the extraction technician noted that a significant emulsion formed. Batch QC samples (Method Blank and Laboratory Control Samples) all showed surrogate recoveries within QC limits, indicating that the biased recoveries were due to the sample matrix. Analyte: Benzidine QC Batch No: V33064/V32898 This target analyte was flagged for recoveries outside QC limits in the associated LCS/LCSD. Data for this analyte is flagged "M" to indicate that results should be considered minimum concentration due to the potential for a low bias. Known poor performer. Massachusetts EPH Method MADEP-EPH Sample 95510 (MW-1) QC Batch No: V33023 Low extraction surrogates. Only received 1 liter for test. Not enough volume for reprep. Volatile Organic Compounds - GC/MS Method 6200B Analyte: tert-Butyl formate QC Batch No: V33001/V33000 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Page 5 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF <10.0 µg/L 10.0 1003,3-Dimethyl-1-butanol 10 05/09/23 17:43 6200BMSA Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%05/09/23 17:4310 MSA V33001 Surrogate: Dibromofluoromethane 95.8 Limits: 70-130%05/09/23 17:4310 MSA V33001 Surrogate: 1,2-Dichloroethane - d4 96.0 Limits: 70-130%05/09/23 17:4310 MSA V33001 Surrogate: Toluene-d8 94.0 Limits: 70-130%05/09/23 17:4310 MSA V33001 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 6 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V33000 05/09/23 09:00 56.7 J µg/L 18.0 100Acetone 10 05/09/23 17:43 V33001MSA <1.80 µg/L 1.80 5.00Benzene 10 05/09/23 17:43 V33001MSA <2.10 µg/L 2.10 5.00Bromobenzene 10 05/09/23 17:43 V33001MSA <4.20 µg/L 4.20 10.0Bromochloromethane 10 05/09/23 17:43 V33001MSA <1.60 µg/L 1.60 5.00Bromodichloromethane 10 05/09/23 17:43 V33001MSA <15.0 µg/L 15.0 50.0Bromoform 10 05/09/23 17:43 V33001MSA <2.80 µg/L 2.80 10.0Bromomethane 10 05/09/23 17:43 V33001MSA 9.18 µg/L 1.80 5.00n-Butylbenzene 10 05/09/23 17:43 V33001MSA 2.38 J µg/L 2.00 5.00 sec-Butyl benzene 10 05/09/23 17:43 V33001MSA <9.20 µg/L 9.20 20.0tert-Butyl benzene 10 05/09/23 17:43 V33001MSA <1.80 µg/L 1.80 5.00Carbon Tetrachloride 10 05/09/23 17:43 V33001MSA <1.90 µg/L 1.90 5.00Chlorobenzene 10 05/09/23 17:43 V33001MSA <1.90 µg/L 1.90 5.00Chlorodibromomethane 10 05/09/23 17:43 V33001MSA <4.30 µg/L 4.30 10.0Chloroethane 10 05/09/23 17:43 V33001MSA <2.20 µg/L 2.20 5.00Chloroform 10 05/09/23 17:43 V33001MSA <2.20 µg/L 2.20 5.00 Chloromethane 10 05/09/23 17:43 V33001MSA <2.00 µg/L 2.00 5.002-Chlorotoluene 10 05/09/23 17:43 V33001MSA <2.00 µg/L 2.00 5.004-Chlorotoluene 10 05/09/23 17:43 V33001MSA <5.00 µg/L 5.00 5.00Di-Isopropyl Ether (DIPE)10 05/09/23 17:43 V33001MSA <11.0 µg/L 11.0 20.01,2-Dibromo-3-Chloropropane 10 05/09/23 17:43 V33001MSA <2.00 µg/L 2.00 5.001,2-Dibromoethane 10 05/09/23 17:43 V33001MSA <2.30 µg/L 2.30 5.00Dibromomethane 10 05/09/23 17:43 V33001MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 7 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V33000 05/09/23 09:00 <2.20 µg/L 2.20 5.001,2-Dichlorobenzene 10 05/09/23 17:43 V33001MSA <1.90 µg/L 1.90 5.001,3-Dichlorobenzene 10 05/09/23 17:43 V33001MSA <2.10 µg/L 2.10 5.001,4-Dichlorobenzene 10 05/09/23 17:43 V33001MSA <12.0 µg/L 12.0 50.0Dichlorodifluoromethane 10 05/09/23 17:43 V33001MSA <2.40 µg/L 2.40 5.001,1-Dichloroethane 10 05/09/23 17:43 V33001MSA <1.50 µg/L 1.50 5.001,2-Dichloroethane 10 05/09/23 17:43 V33001MSA <1.50 µg/L 1.50 5.001,1-Dichloroethene 10 05/09/23 17:43 V33001MSA <2.00 µg/L 2.00 5.00cis-1,2-Dichloroethene 10 05/09/23 17:43 V33001MSA <1.80 µg/L 1.80 5.00 trans-1,2-Dichloroethene 10 05/09/23 17:43 V33001MSA <1.90 µg/L 1.90 5.001,2-Dichloropropane 10 05/09/23 17:43 V33001MSA <1.30 µg/L 1.30 5.001,3-Dichloropropane 10 05/09/23 17:43 V33001MSA <2.10 µg/L 2.10 20.02,2-Dichloropropane 10 05/09/23 17:43 V33001MSA <2.00 µg/L 2.00 5.001,1-Dichloropropene 10 05/09/23 17:43 V33001MSA <2.10 µg/L 2.10 5.00cis-1,3-Dichloropropene 10 05/09/23 17:43 V33001MSA <1.50 µg/L 1.50 5.00trans-1,3-Dichloropropene 10 05/09/23 17:43 V33001MSA <420 µg/L 420 2000 Ethanol 10 05/09/23 17:43 V33001MSA 297 µg/L 1.70 5.00Ethylbenzene 10 05/09/23 17:43 V33001MSA <0.590 µg/L 0.590 100Ethyl Tertiary Butyl Ether (ETBE)10 05/09/23 17:43 V33001MSA <3.50 µg/L 3.50 30.0Hexachlorobutadiene 10 05/09/23 17:43 V33001MSA <3.80 µg/L 3.80 10.02-Hexanone 10 05/09/23 17:43 V33001MSA 27.7 µg/L 1.80 5.00Isopropylbenzene 10 05/09/23 17:43 V33001MSA 3.62 J µg/L 0.890 5.004-Isopropyl toluene 10 05/09/23 17:43 V33001MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 8 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V33000 05/09/23 09:00 16.2 J µg/L 7.10 50.0Methyl Ethyl Ketone (MEK)10 05/09/23 17:43 V33001MSA <1.40 µg/L 1.40 10.0Methyl tert-butyl ether (MTBE)10 05/09/23 17:43 V33001MSA <0.780 µg/L 0.780 10.04-Methyl-2-Pentanone 10 05/09/23 17:43 V33001MSA <3.30 µg/L 3.30 20.0Methylene Chloride 10 05/09/23 17:43 V33001MSA 166 µg/L 4.70 10.0Naphthalene 10 05/09/23 17:43 V33001MSA 49.7 µg/L 1.90 5.00n-Propylbenzene 10 05/09/23 17:43 V33001MSA 3.22 J µg/L 2.20 5.00Styrene 10 05/09/23 17:43 V33001MSA <16.0 µg/L 16.0 100tert-Butyl Alcohol (TBA)10 05/09/23 17:43 V33001MSA <3.50 µg/L 3.50 100 tert-Butyl formate (TBF)10 05/09/23 17:43 V33001MSA <19.0 µg/L 19.0 100tert-Amyl Alcohol (TAA)10 05/09/23 17:43 V33001MSA <2.80 µg/L 2.80 100tert-Amyl Methyl Ether (TAME)10 05/09/23 17:43 V33001MSA <1.60 µg/L 1.60 5.001,1,1,2-Tetrachloroethane 10 05/09/23 17:43 V33001MSA <1.60 µg/L 1.60 5.001,1,2,2-Tetrachloroethane 10 05/09/23 17:43 V33001MSA <2.20 µg/L 2.20 5.00Tetrachloroethene 10 05/09/23 17:43 V33001MSA <2.20 µg/L 2.20 5.00Toluene 10 05/09/23 17:43 V33001MSA <3.80 µg/L 3.80 5.00 1,2,3-Trichlorobenzene 10 05/09/23 17:43 V33001MSA <3.10 µg/L 3.10 5.001,2,4-Trichlorobenzene 10 05/09/23 17:43 V33001MSA <1.60 µg/L 1.60 5.001,1,1-Trichloroethane 10 05/09/23 17:43 V33001MSA <0.960 µg/L 0.960 5.001,1,2-Trichloroethane 10 05/09/23 17:43 V33001MSA <1.80 µg/L 1.80 5.00Trichloroethene 10 05/09/23 17:43 V33001MSA <1.80 µg/L 1.80 5.00Trichlorofluoromethane 10 05/09/23 17:43 V33001MSA <2.70 µg/L 2.70 5.001,2,3-Trichloropropane 10 05/09/23 17:43 V33001MSA Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 9 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V33000 05/09/23 09:00 232 µg/L 1.90 5.001,2,4-Trimethylbenzene 10 05/09/23 17:43 V33001MSA 303 µg/L 1.80 5.001,3,5-Trimethylbenzene 10 05/09/23 17:43 V33001MSA <10.0 µg/L 10.0 50.0Vinyl Acetate 10 05/09/23 17:43 V33001MSA <1.70 µg/L 1.70 5.00Vinyl Chloride 10 05/09/23 17:43 V33001MSA 117 µg/L 2.10 5.00o-Xylene 10 05/09/23 17:43 V33001MSA 156 µg/L 4.20 10.0m,p-Xylene 10 05/09/23 17:43 V33001MSA 273 µg/L 2.10 5.00Xylene (Total)10 05/09/23 17:43 V33001 Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%05/09/23 17:4310 MSA V33001 Surrogate: Dibromofluoromethane 95.8 Limits: 70-130%05/09/23 17:4310 MSA V33001 Surrogate: 1,2-Dichloroethane - d4 96.0 Limits: 70-130%05/09/23 17:4310 MSA V33001 Surrogate: Toluene-d8 94.0 Limits: 70-130%05/09/23 17:4310 MSA V33001 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V32898 05/08/23 09:45 <0.302 µg/L 0.302 2.00Acenaphthene 1 05/08/23 19:46 V33064ANG <0.297 µg/L 0.297 2.00Acenaphthylene 1 05/08/23 19:46 V33064ANG <0.836 µg/L 0.836 2.00Anthracene 1 05/08/23 19:46 V33064ANG <1.32 M µg/L 1.32 10.0Benzidine 1 05/08/23 19:46 V33064ANG <0.637 µg/L 0.637 2.00Benzo(a)anthracene 1 05/08/23 19:46 V33064ANG <1.02 µg/L 1.02 2.00 Benzo(a)pyrene 1 05/08/23 19:46 V33064ANG <2.49 µg/L 2.49 5.00Benzo(b)fluoranthene 1 05/08/23 19:46 V33064ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 10 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V32898 05/08/23 09:45 <1.01 µg/L 1.01 5.00Benzo(g,h,i)perylene 1 05/08/23 19:46 V33064ANG <1.99 µg/L 1.99 5.00Benzo(k)fluoranthene 1 05/08/23 19:46 V33064ANG 5.22 J µg/L 1.10 10.0Benzoic Acid 1 05/08/23 19:46 V33064ANG <0.684 µg/L 0.684 5.00Benzyl alcohol 1 05/08/23 19:46 V33064ANG <0.468 µg/L 0.468 5.00Bis(2-Chloroethoxy)methane 1 05/08/23 19:46 V33064ANG <1.04 µg/L 1.04 5.00Bis(2-Chloroethyl)ether 1 05/08/23 19:46 V33064ANG <1.08 µg/L 1.08 5.00Bis(2-Chloroisopropyl)ether 1 05/08/23 19:46 V33064ANG <3.46 µg/L 3.46 10.0Bis(2-ethylhexyl)phthalate 1 05/08/23 19:46 V33064ANG <1.11 µg/L 1.11 5.00 4-Bromophenyl phenyl ether 1 05/08/23 19:46 V33064ANG <1.83 µg/L 1.83 5.00Butyl benzyl phthalate 1 05/08/23 19:46 V33064ANG <1.18 µg/L 1.18 5.004-Chloro-3-methylphenol 1 05/08/23 19:46 V33064ANG <7.38 µg/L 7.38 20.02-Chloronaphthalene 1 05/08/23 19:46 V33064ANG <0.938 µg/L 0.938 10.02-Chlorophenol 1 05/08/23 19:46 V33064ANG <1.71 µg/L 1.71 5.004-Chlorophenyl phenyl ether 1 05/08/23 19:46 V33064ANG <0.405 µg/L 0.405 2.00Chrysene 1 05/08/23 19:46 V33064ANG <0.434 µg/L 0.434 2.00 Dibenz(a,h)anthracene 1 05/08/23 19:46 V33064ANG <0.856 µg/L 0.856 5.00Dibenzofuran 1 05/08/23 19:46 V33064ANG <2.00 µg/L 2.00 5.001,2-Dichlorobenzene 1 05/08/23 19:46 V33064ANG <2.00 µg/L 2.00 5.001,3-Dichlorobenzene 1 05/08/23 19:46 V33064ANG <2.05 µg/L 2.05 5.001,4-Dichlorobenzene 1 05/08/23 19:46 V33064ANG <1.89 µg/L 1.89 5.003,3'-Dichlorobenzidine 1 05/08/23 19:46 V33064ANG <1.46 µg/L 1.46 10.02,4-Dichlorophenol 1 05/08/23 19:46 V33064ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 11 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V32898 05/08/23 09:45 <0.745 µg/L 0.745 5.00Diethyl phthalate 1 05/08/23 19:46 V33064ANG <0.939 µg/L 0.939 5.00Dimethyl phthalate 1 05/08/23 19:46 V33064ANG 5.71 J µg/L 1.57 20.02,4-Dimethylphenol 1 05/08/23 19:46 V33064ANG <2.06 µg/L 2.06 5.00Di-n-butyl phthalate 1 05/08/23 19:46 V33064ANG <2.07 µg/L 2.07 10.04,6-Dinitro-2-methylphenol 1 05/08/23 19:46 V33064ANG <1.92 µg/L 1.92 10.02,4-Dinitrophenol 1 05/08/23 19:46 V33064ANG <1.11 µg/L 1.11 5.002,4-Dinitrotoluene 1 05/08/23 19:46 V33064ANG <0.809 µg/L 0.809 5.002,6-Dinitrotoluene 1 05/08/23 19:46 V33064ANG <1.65 µg/L 1.65 5.00 Di-n-Octyl Phthalate 1 05/08/23 19:46 V33064ANG <0.250 µg/L 0.250 2.00Fluoranthene 1 05/08/23 19:46 V33064ANG <0.807 µg/L 0.807 2.00Fluorene 1 05/08/23 19:46 V33064ANG <0.979 µg/L 0.979 5.00Hexachlorobenzene 1 05/08/23 19:46 V33064ANG <2.73 µg/L 2.73 5.00Hexachlorobutadiene 1 05/08/23 19:46 V33064ANG <2.05 µg/L 2.05 5.00Hexachlorocyclopentadiene 1 05/08/23 19:46 V33064ANG <1.76 µg/L 1.76 5.00Hexachloroethane 1 05/08/23 19:46 V33064ANG <0.477 µg/L 0.477 2.00 Indeno(1,2,3-cd)pyrene 1 05/08/23 19:46 V33064ANG <0.444 µg/L 0.444 5.00Isophorone 1 05/08/23 19:46 V33064ANG <1.14 µg/L 1.14 2.001-Methylnaphthalene 1 05/08/23 19:46 V33064ANG <0.666 µg/L 0.666 2.002-Methylnaphthalene 1 05/08/23 19:46 V33064ANG <0.728 µg/L 0.728 2.00Naphthalene 1 05/08/23 19:46 V33064ANG <0.905 µg/L 0.905 5.00Nitrobenzene 1 05/08/23 19:46 V33064ANG <0.493 µg/L 0.493 5.002-Nitrophenol 1 05/08/23 19:46 V33064ANG Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 12 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 625.1 (Prep) 625.1 Prep Batch(es):V32898 05/08/23 09:45 <1.23 µg/L 1.23 10.04-Nitrophenol 1 05/08/23 19:46 V33064ANG <1.10 µg/L 1.10 5.00N-Nitrosodiphenylamine 1 05/08/23 19:46 V33064ANG <0.641 µg/L 0.641 5.00N-Nitroso-di-n-propylamine 1 05/08/23 19:46 V33064ANG <1.43 µg/L 1.43 5.00Pentachlorophenol 1 05/08/23 19:46 V33064ANG <0.428 µg/L 0.428 2.00Phenanthrene 1 05/08/23 19:46 V33064ANG <0.651 µg/L 0.651 5.00Phenol 1 05/08/23 19:46 V33064ANG <0.434 µg/L 0.434 2.00Pyrene 1 05/08/23 19:46 V33064ANG <2.21 µg/L 2.21 5.001,2,4-Trichlorobenzene 1 05/08/23 19:46 V33064ANG <1.32 µg/L 1.32 5.00 2,4,6-Trichlorophenol 1 05/08/23 19:46 V33064ANG 625.1Surrogate: Phenol-d5 16.5 Limits: 10-63%05/08/23 19:461 ANG Surrogate: 2-Fluorobiphenyl 16.9 *Limits: 49-118%05/08/23 19:461 ANG V33064 Surrogate: 2-Fluorophenol 21.3 *Limits: 22-84%05/08/23 19:461 ANG V33064 Surrogate: Nitrobenzene-d5 16.5 *Limits: 43-123%05/08/23 19:461 ANG V33064 Surrogate: 4-Terphenyl-d14 25.4 *Limits: 49-151%05/08/23 19:461 ANG V33064 Surrogate: 2,4,6-Tribromophenol 19.1 *Limits: 31-144%05/08/23 19:461 ANG V33064 Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 13 of 30 , REPORT OF ANALYSISReport Number : Project Information : NC 28273 23-125-0005 00012 CES Group 3525 Whitehall Park Dr. Suite 150 Greg Hans Charlotte Angela D Overcash Senior Project Manager Received : 05/05/2023 G&B Oil Company Report Date : 05/12/2023 Sample ID : Lab No : Sampled:MW-1 95510 Matrix: 5/4/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAEPH (Prep) MADEP-EPH Prep Batch(es):V32945 05/09/23 10:30 70.2 J µg/L 62.7 778Aliphatic C9-C18 1 05/10/23 20:16 V33023AMP <275 µg/L 275 1110Aliphatic C19-C36 1 05/10/23 20:16 V33023AMP 229 J µg/L 136 556Aromatic C11-C22 1 05/10/23 20:16 V33023AMP MADEP-EPHSurrogate: 2-Bromonaphthalene 94.9 Limits: 40-140%05/10/23 20:161 AMP MADEP-EPHSurrogate: Chlorooctadecane 12.9 *Limits: 40-140%05/10/23 20:161 AMP MADEP-EPHSurrogate: OTP Surrogate 16.7 *Limits: 40-140%05/10/23 20:161 AMP Surrogate: 2-Fluorobiphenyl 99.6 Limits: 40-140%05/10/23 20:161 AMP V33023 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V32851 05/05/23 08:00 56.6 µg/L 11.5 50.0 Aliphatic C5-C8 1 05/05/23 14:19 V32852TBL 3880 µg/L 258 500Aliphatic C9-C12 10 05/05/23 14:43 V32852TBL 2420 µg/L 40.2 500Aromatic C9-C10 10 05/05/23 14:43 V32852TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)103 Limits: 70-130%05/05/23 14:191 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)98.1 Limits: 70-130%05/05/23 14:191 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)80.9 Limits: 70-130%05/05/23 14:4310 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)85.3 Limits: 70-130%05/05/23 14:4310 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Minimum valueMEstimated valueJ Method Quantitation LimitMQL Page 14 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33001QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33000 Associated Lab Samples: 95510 LRB-V33000 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/09/23 13:3510.01.80<1.80µg/LAcetone 05/09/23 13:350.5000.180<0.180µg/LBenzene 05/09/23 13:350.5000.210<0.210µg/LBromobenzene 05/09/23 13:351.000.420<0.420µg/LBromochloromethane 05/09/23 13:350.5000.160<0.160µg/LBromodichloromethane 05/09/23 13:355.001.50<1.50µg/LBromoform 05/09/23 13:351.000.280<0.280µg/LBromomethane 05/09/23 13:350.5000.180<0.180µg/Ln-Butylbenzene 05/09/23 13:350.5000.200<0.200µg/Lsec-Butyl benzene 05/09/23 13:352.000.920<0.920µg/Ltert-Butyl benzene 05/09/23 13:350.5000.180<0.180µg/LCarbon Tetrachloride 05/09/23 13:350.5000.190<0.190µg/LChlorobenzene 05/09/23 13:350.5000.190<0.190µg/LChlorodibromomethane 05/09/23 13:351.000.430<0.430µg/LChloroethane 05/09/23 13:350.5000.220<0.220µg/LChloroform 05/09/23 13:350.5000.220<0.220µg/LChloromethane 05/09/23 13:350.5000.200<0.200µg/L2-Chlorotoluene 05/09/23 13:350.5000.200<0.200µg/L4-Chlorotoluene 05/09/23 13:350.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 05/09/23 13:352.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 05/09/23 13:350.5000.200<0.200µg/L1,2-Dibromoethane 05/09/23 13:350.5000.230<0.230µg/LDibromomethane 05/09/23 13:350.5000.220<0.220µg/L1,2-Dichlorobenzene 05/09/23 13:350.5000.190<0.190µg/L1,3-Dichlorobenzene 05/09/23 13:350.5000.210<0.210µg/L1,4-Dichlorobenzene 05/09/23 13:355.001.20<1.20µg/LDichlorodifluoromethane 05/09/23 13:350.5000.240<0.240µg/L1,1-Dichloroethane Page 1 of 14Date:05/12/2023 10:24 AM Page 15 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33001QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33000 Associated Lab Samples: 95510 LRB-V33000 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/09/23 13:350.5000.150<0.150µg/L1,2-Dichloroethane 05/09/23 13:350.5000.150<0.150µg/L1,1-Dichloroethene 05/09/23 13:350.5000.200<0.200µg/Lcis-1,2-Dichloroethene 05/09/23 13:350.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 05/09/23 13:350.5000.190<0.190µg/L1,2-Dichloropropane 05/09/23 13:350.5000.130<0.130µg/L1,3-Dichloropropane 05/09/23 13:352.000.210<0.210µg/L2,2-Dichloropropane 05/09/23 13:350.5000.200<0.200µg/L1,1-Dichloropropene 05/09/23 13:350.5000.210<0.210µg/Lcis-1,3-Dichloropropene 05/09/23 13:350.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 05/09/23 13:3520042.0<42.0µg/LEthanol 05/09/23 13:350.5000.170<0.170µg/LEthylbenzene 05/09/23 13:3510.00.059<0.059µg/LEthyl Tertiary Butyl Ether (ETBE) 05/09/23 13:353.000.350<0.350µg/LHexachlorobutadiene 05/09/23 13:351.000.380<0.380µg/L2-Hexanone 05/09/23 13:350.5000.180<0.180µg/LIsopropylbenzene 05/09/23 13:350.5000.089<0.089µg/L4-Isopropyl toluene 05/09/23 13:355.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 05/09/23 13:351.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 05/09/23 13:351.000.078<0.078µg/L4-Methyl-2-Pentanone 05/09/23 13:352.000.330<0.330µg/LMethylene Chloride 05/09/23 13:351.000.470<0.470µg/LNaphthalene 05/09/23 13:350.5000.190<0.190µg/Ln-Propylbenzene 05/09/23 13:350.5000.220<0.220µg/LStyrene 05/09/23 13:3510.01.60<1.60µg/Ltert-Butyl Alcohol (TBA) 05/09/23 13:3510.00.350<0.350µg/Ltert-Butyl formate (TBF) 05/09/23 13:3510.01.90<1.90µg/Ltert-Amyl Alcohol (TAA) Page 2 of 14Date:05/12/2023 10:24 AM Page 16 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33001QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33000 Associated Lab Samples: 95510 LRB-V33000 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/09/23 13:3510.00.280<0.280µg/Ltert-Amyl Methyl Ether (TAME) 05/09/23 13:350.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 05/09/23 13:350.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 05/09/23 13:350.5000.220<0.220µg/LTetrachloroethene 05/09/23 13:350.5000.220<0.220µg/LToluene 05/09/23 13:350.5000.380<0.380µg/L1,2,3-Trichlorobenzene 05/09/23 13:350.5000.310<0.310µg/L1,2,4-Trichlorobenzene 05/09/23 13:350.5000.160<0.160µg/L1,1,1-Trichloroethane 05/09/23 13:350.5000.096<0.096µg/L1,1,2-Trichloroethane 05/09/23 13:350.5000.180<0.180µg/LTrichloroethene 05/09/23 13:350.5000.180<0.180µg/LTrichlorofluoromethane 05/09/23 13:350.5000.270<0.270µg/L1,2,3-Trichloropropane 05/09/23 13:350.5000.190<0.190µg/L1,2,4-Trimethylbenzene 05/09/23 13:350.5000.180<0.180µg/L1,3,5-Trimethylbenzene 05/09/23 13:355.001.00<1.00µg/LVinyl Acetate 05/09/23 13:350.5000.170<0.170µg/LVinyl Chloride 05/09/23 13:350.5000.210<0.210µg/Lo-Xylene 05/09/23 13:351.000.420<0.420µg/Lm,p-Xylene 05/09/23 13:3510.01.00<1.00µg/L3,3-Dimethyl-1-butanol 05/09/23 13:354-Bromofluorobenzene (S)100 70-130 05/09/23 13:35Dibromofluoromethane (S)96.2 70-130 05/09/23 13:351,2-Dichloroethane - d4 (S)96.2 70-130 05/09/23 13:35Toluene-d8 (S)96.0 70-130 Page 3 of 14Date:05/12/2023 10:24 AM Page 17 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33001QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33000 LCS-V33000 LCSD-V33000Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 34.3 85.786.534.640.0µg/LAcetone 40-160 0.8 20.0 23.2 11611522.920.0µg/LBenzene 70-130 1.3 20.0 22.2 11110921.820.0µg/LBromobenzene 70-130 1.8 20.0 22.2 11111623.220.0µg/LBromochloromethane 70-130 4.4 20.0 22.8 11411322.620.0µg/LBromodichloromethane 70-130 0.8 20.0 20.4 10210621.220.0µg/LBromoform 70-130 3.8 20.0 23.6 11810921.720.0µg/LBromomethane 60-140 8.3 20.0 22.5 11311122.120.0µg/Ln-Butylbenzene 70-130 1.7 20.0 22.3 11210921.720.0µg/Lsec-Butyl benzene 70-130 2.7 20.0 21.7 10910621.120.0µg/Ltert-Butyl benzene 70-130 2.8 20.0 25.8 12911422.820.0µg/LCarbon Tetrachloride 70-130 12.3 20.0 22.8 11411522.920.0µg/LChlorobenzene 70-130 0.4 20.0 23.1 11611222.420.0µg/LChlorodibromomethane 70-130 3.0 20.0 24.0 12011623.220.0µg/LChloroethane 60-140 3.3 20.0 23.8 11911623.120.0µg/LChloroform 70-130 2.9 20.0 20.7 10410020.020.0µg/LChloromethane 60-140 3.4 20.0 22.0 11010721.420.0µg/L2-Chlorotoluene 70-130 2.7 20.0 22.4 11211022.020.0µg/L4-Chlorotoluene 70-130 1.8 20.0 22.4 11211522.920.0µg/LDi-Isopropyl Ether (DIPE)70-130 2.2 20.0 21.1 10610721.420.0µg/L1,2-Dibromo-3-Chloropropane 70-130 1.4 20.0 23.9 12011723.420.0µg/L1,2-Dibromoethane 70-130 2.1 20.0 22.4 11211623.120.0µg/LDibromomethane 70-130 3.0 20.0 23.1 11610921.820.0µg/L1,2-Dichlorobenzene 70-130 5.7 20.0 21.5 10810621.120.0µg/L1,3-Dichlorobenzene 70-130 1.8 20.0 21.4 10710921.820.0µg/L1,4-Dichlorobenzene 70-130 1.8 20.0 18.8 94.095.019.020.0µg/LDichlorodifluoromethane 60-140 1.0 20.0 Page 4 of 14Date:05/12/2023 10:24 AM Page 18 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33001QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33000 LCS-V33000 LCSD-V33000Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 23.1 11611422.720.0µg/L1,1-Dichloroethane 70-130 1.7 20.0 22.3 11211322.620.0µg/L1,2-Dichloroethane 70-130 1.3 20.0 24.5 12311523.020.0µg/L1,1-Dichloroethene 70-130 6.3 20.0 22.8 11411322.520.0µg/Lcis-1,2-Dichloroethene 70-130 1.3 20.0 23.8 11911623.120.0µg/Ltrans-1,2-Dichloroethene 70-130 2.9 20.0 23.2 11611522.920.0µg/L1,2-Dichloropropane 70-130 1.3 20.0 22.7 11411523.020.0µg/L1,3-Dichloropropane 70-130 1.3 20.0 23.8 11911923.720.0µg/L2,2-Dichloropropane 70-130 0.4 20.0 24.2 12112224.320.0µg/L1,1-Dichloropropene 70-130 0.4 20.0 24.1 12111923.820.0µg/Lcis-1,3-Dichloropropene 70-130 1.2 20.0 24.0 12012024.020.0µg/Ltrans-1,3-Dichloropropene 70-130 0.0 20.0 566 113102510500µg/LEthanol 60-140 10.4 20.0 22.2 11111022.020.0µg/LEthylbenzene 70-130 0.9 20.0 49.2 12312550.040.0µg/LEthyl Tertiary Butyl Ether (ETBE)70-130 1.6 20.0 21.7 10911322.520.0µg/LHexachlorobutadiene 70-130 3.6 20.0 20.8 10411523.020.0µg/L2-Hexanone 60-140 10.0 20.0 22.9 11511021.920.0µg/LIsopropylbenzene 70-130 4.4 20.0 22.4 11211122.120.0µg/L4-Isopropyl toluene 70-130 1.3 20.0 18.8 94.098.019.620.0µg/LMethyl Ethyl Ketone (MEK)60-140 4.1 20.0 22.3 11211623.220.0µg/LMethyl tert-butyl ether (MTBE)70-130 3.9 20.0 21.6 10811723.420.0µg/L4-Methyl-2-Pentanone 60-140 8.0 20.0 23.9 12011823.520.0µg/LMethylene Chloride 70-130 1.6 20.0 21.2 10611222.420.0µg/LNaphthalene 70-130 5.5 20.0 22.3 11210921.820.0µg/Ln-Propylbenzene 70-130 2.2 20.0 22.0 11011422.820.0µg/LStyrene 70-130 3.5 20.0 47.6 11911445.740.0µg/Ltert-Butyl Alcohol (TBA)40-140 4.0 20.0 Page 5 of 14Date:05/12/2023 10:24 AM Page 19 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33001QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33000 LCS-V33000 LCSD-V33000Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 55.3 138142*56.640.0µg/Ltert-Butyl formate (TBF)40-140 2.3 20.0 23.5 11811823.520.0µg/Ltert-Amyl Alcohol (TAA)40-140 0.0 20.0 47.1 11812047.840.0µg/Ltert-Amyl Methyl Ether (TAME)40-140 1.4 20.0 23.0 11511222.320.0µg/L1,1,1,2-Tetrachloroethane 70-130 3.0 20.0 22.3 11211723.420.0µg/L1,1,2,2-Tetrachloroethane 70-130 4.8 20.0 24.6 12311923.720.0µg/LTetrachloroethene 70-130 3.7 20.0 24.3 12211923.820.0µg/LToluene 70-130 2.0 20.0 23.1 11612424.820.0µg/L1,2,3-Trichlorobenzene 70-130 7.0 20.0 23.0 11511623.120.0µg/L1,2,4-Trichlorobenzene 70-130 0.4 20.0 23.1 11611322.520.0µg/L1,1,1-Trichloroethane 70-130 2.6 20.0 23.4 11711422.720.0µg/L1,1,2-Trichloroethane 70-130 3.0 20.0 23.3 11711422.820.0µg/LTrichloroethene 70-130 2.1 20.0 22.6 11311322.620.0µg/LTrichlorofluoromethane 60-140 0.0 20.0 21.7 10910821.520.0µg/L1,2,3-Trichloropropane 70-130 0.9 20.0 22.9 11511222.420.0µg/L1,2,4-Trimethylbenzene 70-130 2.2 20.0 22.7 11411122.120.0µg/L1,3,5-Trimethylbenzene 70-130 2.6 20.0 22.6 11311723.420.0µg/LVinyl Acetate 60-140 3.4 20.0 22.9 11511021.920.0µg/LVinyl Chloride 60-140 4.4 20.0 22.0 11011122.120.0µg/Lo-Xylene 70-130 0.4 20.0 46.1 11511445.540.0µg/Lm,p-Xylene 70-130 1.3 20.0 19.9 99.511322.620.0µg/L3,3-Dimethyl-1-butanol 70-130 12.7 20.0 98.697.44-Bromofluorobenzene (S)70-130 96.897.0Dibromofluoromethane (S)70-130 95.099.21,2-Dichloroethane - d4 (S)70-130 100100Toluene-d8 (S)70-130 Page 6 of 14* QC Fail Date:05/12/2023 10:24 AM Page 20 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V33064QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V32898 Associated Lab Samples: 95510 LRB-V32898 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/08/23 17:082.000.302<0.302µg/LAcenaphthene 05/08/23 17:082.000.297<0.297µg/LAcenaphthylene 05/08/23 17:082.000.836<0.836µg/LAnthracene 05/08/23 17:0810.01.32<1.32µg/LBenzidine 05/08/23 17:082.000.637<0.637µg/LBenzo(a)anthracene 05/08/23 17:082.001.02<1.02µg/LBenzo(a)pyrene 05/08/23 17:085.002.49<2.49µg/LBenzo(b)fluoranthene 05/08/23 17:085.001.01<1.01µg/LBenzo(g,h,i)perylene 05/08/23 17:085.001.99<1.99µg/LBenzo(k)fluoranthene 05/08/23 17:0810.01.10<1.10µg/LBenzoic Acid 05/08/23 17:085.000.684<0.684µg/LBenzyl alcohol 05/08/23 17:085.000.468<0.468µg/LBis(2-Chloroethoxy)methane 05/08/23 17:085.001.04<1.04µg/LBis(2-Chloroethyl)ether 05/08/23 17:085.001.08<1.08µg/LBis(2-Chloroisopropyl)ether 05/08/23 17:0810.03.46<3.46µg/LBis(2-ethylhexyl)phthalate 05/08/23 17:085.001.11<1.11µg/L4-Bromophenyl phenyl ether 05/08/23 17:085.001.83<1.83µg/LButyl benzyl phthalate 05/08/23 17:085.001.18<1.18µg/L4-Chloro-3-methylphenol 05/08/23 17:0820.07.38<7.38µg/L2-Chloronaphthalene 05/08/23 17:0810.00.938<0.938µg/L2-Chlorophenol 05/08/23 17:085.001.71<1.71µg/L4-Chlorophenyl phenyl ether 05/08/23 17:082.000.405<0.405µg/LChrysene 05/08/23 17:082.000.434<0.434µg/LDibenz(a,h)anthracene 05/08/23 17:085.000.856<0.856µg/LDibenzofuran 05/08/23 17:085.002.00<2.00µg/L1,2-Dichlorobenzene 05/08/23 17:085.002.00<2.00µg/L1,3-Dichlorobenzene 05/08/23 17:085.002.05<2.05µg/L1,4-Dichlorobenzene Page 7 of 14Date:05/12/2023 10:24 AM Page 21 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V33064QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V32898 Associated Lab Samples: 95510 LRB-V32898 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/08/23 17:085.001.89<1.89µg/L3,3'-Dichlorobenzidine 05/08/23 17:0810.01.46<1.46µg/L2,4-Dichlorophenol 05/08/23 17:085.000.745<0.745µg/LDiethyl phthalate 05/08/23 17:085.000.939<0.939µg/LDimethyl phthalate 05/08/23 17:0820.01.57<1.57µg/L2,4-Dimethylphenol 05/08/23 17:085.002.06<2.06µg/LDi-n-butyl phthalate 05/08/23 17:0810.02.07<2.07µg/L4,6-Dinitro-2-methylphenol 05/08/23 17:0810.01.92<1.92µg/L2,4-Dinitrophenol 05/08/23 17:085.001.11<1.11µg/L2,4-Dinitrotoluene 05/08/23 17:085.000.809<0.809µg/L2,6-Dinitrotoluene 05/08/23 17:085.001.65<1.65µg/LDi-n-Octyl Phthalate 05/08/23 17:082.000.250<0.250µg/LFluoranthene 05/08/23 17:082.000.807<0.807µg/LFluorene 05/08/23 17:085.000.979<0.979µg/LHexachlorobenzene 05/08/23 17:085.002.73<2.73µg/LHexachlorobutadiene 05/08/23 17:085.002.05<2.05µg/LHexachlorocyclopentadiene 05/08/23 17:085.001.76<1.76µg/LHexachloroethane 05/08/23 17:082.000.477<0.477µg/LIndeno(1,2,3-cd)pyrene 05/08/23 17:085.000.444<0.444µg/LIsophorone 05/08/23 17:082.001.14<1.14µg/L1-Methylnaphthalene 05/08/23 17:082.000.666<0.666µg/L2-Methylnaphthalene 05/08/23 17:082.000.728<0.728µg/LNaphthalene 05/08/23 17:085.000.905<0.905µg/LNitrobenzene 05/08/23 17:085.000.493<0.493µg/L2-Nitrophenol 05/08/23 17:0810.01.23<1.23µg/L4-Nitrophenol 05/08/23 17:085.001.10<1.10µg/LN-Nitrosodiphenylamine 05/08/23 17:085.000.641<0.641µg/LN-Nitroso-di-n-propylamine Page 8 of 14Date:05/12/2023 10:24 AM Page 22 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V33064QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V32898 Associated Lab Samples: 95510 LRB-V32898 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/08/23 17:085.001.43<1.43µg/LPentachlorophenol 05/08/23 17:082.000.428<0.428µg/LPhenanthrene 05/08/23 17:085.000.651<0.651µg/LPhenol 05/08/23 17:082.000.434<0.434µg/LPyrene 05/08/23 17:085.002.21<2.21µg/L1,2,4-Trichlorobenzene 05/08/23 17:085.001.32<1.32µg/L2,4,6-Trichlorophenol 05/08/23 17:082-Fluorobiphenyl (S)62.2 49-118 05/08/23 17:082-Fluorophenol (S)33.8 22-84 05/08/23 17:08Nitrobenzene-d5 (S)57.0 43-123 05/08/23 17:084-Terphenyl-d14 (S)83.0 49-151 05/08/23 17:082,4,6-Tribromophenol (S)62.8 31-144 05/08/23 17:08Phenol-d5 (S)21.0 10-63 LCS-V32898 LCSD-V32898Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 33.7 67.462.631.350.0µg/LAcenaphthene 47-145 7.3 20.0 34.3 68.662.631.350.0µg/LAcenaphthylene 33-145 9.1 20.0 40.2 80.472.436.250.0µg/LAnthracene 27-133 10.4 20.0 <1.32 0.0*3.6*1.8150.0µg/LBenzidine 15-150 31.3*20.0 38.5 77.069.634.850.0µg/LBenzo(a)anthracene 33-143 10.0 20.0 42.4 84.875.037.550.0µg/LBenzo(a)pyrene 17-163 12.2 20.0 41.1 82.273.636.850.0µg/LBenzo(b)fluoranthene 24-159 11.0 20.0 36.2 72.464.832.450.0µg/LBenzo(g,h,i)perylene 10-219 11.0 20.0 41.0 82.073.036.550.0µg/LBenzo(k)fluoranthene 11-162 11.6 20.0 12.9 25.830.215.150.0µg/LBenzoic Acid 10-125 15.7 20.0 Page 9 of 14* QC Fail Date:05/12/2023 10:24 AM Page 23 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V33064QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V32898 LCS-V32898 LCSD-V32898Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 29.5 59.056.228.150.0µg/LBenzyl alcohol 16-107 4.8 20.0 36.6 73.267.233.650.0µg/LBis(2-Chloroethoxy)methane 33-184 8.5 20.0 30.1 60.259.829.950.0µg/LBis(2-Chloroethyl)ether 12-158 0.6 20.0 30.9 61.860.630.350.0µg/LBis(2-Chloroisopropyl)ether 36-166 1.9 20.0 37.0 74.065.232.650.0µg/LBis(2-ethylhexyl)phthalate 10-158 12.6 20.0 40.4 80.871.235.650.0µg/L4-Bromophenyl phenyl ether 53-127 12.6 20.0 40.7 81.468.434.250.0µg/LButyl benzyl phthalate 10-152 17.3 20.0 38.1 76.270.835.450.0µg/L4-Chloro-3-methylphenol 22-147 7.3 20.0 32.6 65.260.830.450.0µg/L2-Chloronaphthalene 60-118 6.9 20.0 29.8 59.657.828.950.0µg/L2-Chlorophenol 23-134 3.0 20.0 38.0 76.068.234.150.0µg/L4-Chlorophenyl phenyl ether 25-158 10.8 20.0 39.5 79.070.435.250.0µg/LChrysene 17-168 11.5 20.0 36.8 73.665.832.950.0µg/LDibenz(a,h)anthracene 10-227 11.1 20.0 34.5 69.063.631.850.0µg/LDibenzofuran 39-114 8.1 20.0 25.8 51.648.024.050.0µg/L1,2-Dichlorobenzene 32-129 7.2 20.0 24.4 48.846.623.350.0µg/L1,3-Dichlorobenzene 20-124 4.6 20.0 25.0 50.046.223.150.0µg/L1,4-Dichlorobenzene 20-124 7.9 20.0 35.3 70.663.031.550.0µg/L3,3'-Dichlorobenzidine 10-262 11.3 20.0 36.6 73.266.033.050.0µg/L2,4-Dichlorophenol 39-135 10.3 20.0 38.4 76.870.435.250.0µg/LDiethyl phthalate 10-114 8.6 20.0 38.8 77.671.635.850.0µg/LDimethyl phthalate 10-112 8.0 20.0 47.8 95.687.043.550.0µg/L2,4-Dimethylphenol 32-119 9.4 20.0 40.8 81.674.837.450.0µg/LDi-n-butyl phthalate 10-118 8.6 20.0 36.0 72.063.431.750.0µg/L4,6-Dinitro-2-methylphenol 10-181 12.7 20.0 30.2 60.458.629.350.0µg/L2,4-Dinitrophenol 10-191 3.0 20.0 38.0 76.069.034.550.0µg/L2,4-Dinitrotoluene 39-139 9.6 20.0 Page 10 of 14Date:05/12/2023 10:24 AM Page 24 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V33064QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V32898 LCS-V32898 LCSD-V32898Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 38.3 76.670.635.350.0µg/L2,6-Dinitrotoluene 50-158 8.1 20.0 42.1 84.273.236.650.0µg/LDi-n-Octyl Phthalate 10-146 13.9 20.0 36.2 72.465.832.950.0µg/LFluoranthene 26-137 9.5 20.0 36.6 73.266.833.450.0µg/LFluorene 59-121 9.1 20.0 39.8 79.668.034.050.0µg/LHexachlorobenzene 10-152 15.7 20.0 28.5 57.049.624.850.0µg/LHexachlorobutadiene 24-116 13.8 20.0 25.4 50.846.823.450.0µg/LHexachlorocyclopentadiene 32-117 8.1 20.0 23.0 46.044.022.050.0µg/LHexachloroethane 40-113 4.4 20.0 36.4 72.863.631.850.0µg/LIndeno(1,2,3-cd)pyrene 10-171 13.4 20.0 31.9 63.858.229.150.0µg/LIsophorone 21-196 9.1 20.0 30.1 60.256.828.450.0µg/L1-Methylnaphthalene 40-135 5.8 20.0 30.1 60.256.228.150.0µg/L2-Methylnaphthalene 18-121 6.8 20.0 28.7 57.453.026.550.0µg/LNaphthalene 21-133 7.9 20.0 32.0 64.057.628.850.0µg/LNitrobenzene 35-180 10.5 20.0 33.9 67.860.230.150.0µg/L2-Nitrophenol 29-182 11.8 20.0 17.3 34.633.816.950.0µg/L4-Nitrophenol 10-132 2.3 20.0 47.5 95.083.441.750.0µg/LN-Nitrosodiphenylamine 69-152 13.0 20.0 32.8 65.661.630.850.0µg/LN-Nitroso-di-n-propylamine 10-230 6.2 20.0 45.3 90.677.838.950.0µg/LPentachlorophenol 14-176 15.2 20.0 38.9 77.869.834.950.0µg/LPhenanthrene 54-120 10.8 20.0 13.5 27.027.413.750.0µg/LPhenol 10-112 1.4 20.0 40.7 81.471.235.650.0µg/LPyrene 52-115 13.3 20.0 27.5 55.049.024.550.0µg/L1,2,4-Trichlorobenzene 44-142 11.5 20.0 36.9 73.866.833.450.0µg/L2,4,6-Trichlorophenol 37-144 9.9 20.0 68.864.42-Fluorobiphenyl (S)49-118 32.833.82-Fluorophenol (S)22-84 Page 11 of 14Date:05/12/2023 10:24 AM Page 25 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: 625.1 - Base/Neutrals and Acids by GC/MS 625.1 V33064QC Analytical Batch(es): Analysis Method: Analysis Description: 625.1 (Prep) QC Prep:V32898 LCS-V32898 LCSD-V32898Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 61.658.8Nitrobenzene-d5 (S)43-123 80.671.84-Terphenyl-d14 (S)49-151 68.064.32,4,6-Tribromophenol (S)31-144 20.721.1Phenol-d5 (S)10-63 Page 12 of 14Date:05/12/2023 10:24 AM Page 26 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: Massachusetts EPH MADEP-EPH V33023QC Analytical Batch(es): Analysis Method: Analysis Description: MAEPH (Prep) QC Prep:V32945 Associated Lab Samples: 95510 LRB-V32945 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/10/23 18:2735028.2<28.2µg/LAliphatic C9-C18 05/10/23 18:27500124<124µg/LAliphatic C19-C36 05/10/23 18:2725061.2<61.2µg/LAromatic C11-C22 05/10/23 18:272-Fluorobiphenyl (S)107 40-140 05/10/23 18:272-Bromonaphthalene (S)103 40-140 05/10/23 18:27Chlorooctadecane (S)48.5 40-140 05/10/23 18:27OTP Surrogate (S)56.3 40-140 LCS-V32945 LCSD-V32945Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 313 52.148.6292600µg/LAliphatic C9-C18 40-140 6.9 50.0 533 66.665.1521800µg/LAliphatic C19-C36 40-140 2.2 50.0 1210 71.168.211601700µg/LAromatic C11-C22 40-140 4.2 50.0 10694.52-Fluorobiphenyl (S)40-140 10291.52-Bromonaphthalene (S)40-140 69.371.7Chlorooctadecane (S)40-140 76.072.8OTP Surrogate (S)40-140 Page 13 of 14Date:05/12/2023 10:24 AM Page 27 of 30 Quality Control Data 23-125-0005Report No: Project Description: Client ID:CES Group G&B Oil Company QC Prep Batch Method: Massachusetts VPH MADEP-VPH V32852QC Analytical Batch(es): Analysis Method: Analysis Description: MAVPH (Prep) QC Prep:V32851 Associated Lab Samples: 95510 LRB-V32851 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 05/05/23 12:2150.011.5<11.5µg/LAliphatic C5-C8 05/05/23 12:2150.025.8<25.8µg/LAliphatic C9-C12 05/05/23 12:2150.04.02<4.02µg/LAromatic C9-C10 05/05/23 12:212,5-Dibromotoluene (FID) (S)89.2 70-130 05/05/23 12:212,5-Dibromotoluene (PID) (S)92.1 70-130 LCS-V32851 LCSD-V32851Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 335 112108325300µg/LAliphatic C5-C8 70-130 3.0 50.0 347 116112337300µg/LAliphatic C9-C12 70-130 2.9 50.0 124 124120120100µg/LAromatic C9-C10 70-130 3.2 50.0 92.484.12,5-Dibromotoluene (FID) (S)70-130 99.791.52,5-Dibromotoluene (PID) (S)70-130 Page 14 of 14Date:05/12/2023 10:24 AM Page 28 of 30 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-125-0005 CES Group 00012 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 2.8C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:05/05/2023 09:22:03 Special precautions or instructions included? Comments: Page 29 of 30 Page 30 of 30 APPENDIX E SOIL BORING LOG, WELL PERMIT AND WELL CONSTRUCTION RECORD CES Project No.: 8079.0123E Boring Number: MW-1 Page: 1 of 1 Site Name: G&B Oil Co. - Sparta Boring Location: Former UST Area Address: 1497 US-21, Sparta, NC Date: April 25, 2023 Sample Number Lab Sample Sample Recovery (5 Foot Intervals) Depth (feet) Detailed Soil and Rock Description PID (PPMV) Remarks / Notes 0__ 5__ (0-5'): Reddish brown clayey silt 0.0 No Staining/No Odor 100% 10__ (5-10’): Reddish brown clayey silt 0.0 No Staining/No Odor 100% MW-1 * 15__ (10-15’): Reddish brown clayey silt 61.5 No Staining/Odor Present 100% Rock Interface Encountered at 15 feet below grade 20__ 25__ 30__ 35__ 40__ End boring at 45 feet below grade * Soil sample collected for laboratory analysis Note: Stratification lines are approximate; in-situ transition between soil types may be gradual. Ground Water Data: Drilling Information: Drilling Co.: Carolina Soil Investigations, LLC Water Indication (during boring): 14 - 15 ’ Engineer/Geologist: Greg Hans, PMP Ground Water Depth (after boring): 14.60’ Drilling Method: Air Rotary via Trac Mounted 7822DT Drill Rig with Air Compressor PID Reading (instrument units): PPMV Sampling Method: 5-foot increments (0 to 15 feet below grade) Borehole Depth: 45’ Abandonment: N/A CES Group Engineers, LLP 3525 Whitehall Park Drive, Suite 150, Charlotte, NC 28273 North Carolina Department of Environmental Quality | Division of Water Resources Winston-Salem Regional Office | 450 W. Hanes Mill Rd, Suite 300 | Winston-Salem, North Carolina 27105 336.776.9800 February 17, 2023 Mr. Scott Ryals NCDEQ – DWM UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 SUBJECT: MONITORING WELL CONSTRUCTION PERMIT NO. WM0401433 COUNTY: Alleghany FILE NAME: 1497 NC 21 South Dear Mr. Ryals: In accordance with your application received on February 16, 2023, we are forwarding herewith: 1. Monitoring Well Construction Permit No. WM0401433 for the construction of one (1) monitoring well at 1497 NC 21 South in Sparta in Alleghany County. Henceforth, correspondence and data relating to this well shall be designated as specified in the subject heading above. This Permit will be effective from the date of issuance and shall be subject to the conditions and limitations as specified therein. If you have any questions regarding this permit, please contact me or Jim Gonsiewski at (336) 776-9800. Sincerely, Lon T. Snider Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ - WSRO cc: Lowell T. Miller – (Electronic Copy) Greg Hans – CES Group Engineers, LLP (Electronic Copy) North Carolina Department of Environmental Quality | Division of Water Resources Winston-Salem Regional Office | 450 W. Hanes Mill Rd, Suite 300 | Raleigh, North Carolina 27105 336.776.9800 NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES – WATER QUALITY REGIONAL OPERATIONS SECTION PERMIT FOR THE CONSTRUCTION OF A MONITORING WELL In accordance with the provisions of Article 7, Chapter 87, North Carolina General Statutes, and other applicable Laws, Rules and Regulations. PERMISSION IS HEREBY GRANTED TO NCDEQ – DWM UST Section FOR THE CONSTRUCTION OF A MONITOR WELL SYSTEM consisting of one (1) monitoring well owned by the NCDEQ – DWM UST Section. The well will be located at 1497 NC 21 South in Sparta, North Carolina, in Alleghany County. This Permit is issued in accordance with the application received on February 16, 2023 in conformity with specifications and supporting data, all of which are filed with the Department of Environmental Quality and are considered integral parts of this Permit. This Permit is for well construction only, and does not waive any provision or requirement of any other applicable law or regulation. Construction of any well under this Permit shall be in strict compliance with the North Carolina Well Construction Regulations and Standards (15A NCAC 02C .0100), and other State and Local Laws and regulations pertaining to well construction. If any requirements or limitations specified in this Permit are unacceptable, you have a right to an adjudicatory hearing upon written request within 30 days of receipt of this Permit. The request must be in the form of a written petition conforming to Chapter 150B of the North Carolina General Statutes and filed with the Office of Administrative Hearings, 6714 Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a demand is made, this Permit is final and binding. This Permit will be effective for one year from the date of its issuance and shall be subject to other specified conditions, limitations, or exceptions as follows: North Carolina Department of Environmental Quality | Division of Water Resources Winston-Salem Regional Office | 450 W. Hanes Mill Rd, Suite 300 | Raleigh, North Carolina 27105 336.776.9800 1. Issuance of this Permit does not obligate reimbursement from State trust funds, if these wells are being installed as part of an investigation for contamination from an underground storage tank or dry cleaner incident. 2. Issuance of this Permit does not supersede any other agreement, permit, or requirement issued by another agency. 3. The well(s) shall be located and constructed as shown on the attachments submitted as part of the Permit application. 4. Each well shall have a Well Contractor Identification Plate in accordance with 15A NCAC 02C .0108(o). 5. Well construction records (GW-1) for each well shall be submitted to the Division of Water Resources’ Information Processing Unit within 30 days of the well completion. 6. When the well is discontinued or abandoned, it shall be abandoned in accordance with 15A NCAC 02C .0113 and a well abandonment record (GW-30) shall be submitted to the Division of Water Resources’ Information Processing Unit within 30 days of the well abandonment. 7. The County Health Department may require a county monitoring well construction permit. Please contact the health department for their requirements. Permit issued the 17th day of February, 2023 FOR THE NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION _______________________________________________ Lon T. Snider, Regional Supervisor Water Quality Regional Operations Section Division of Water Resources, NCDEQ - WSRO By Authority of the Environmental Management Commission Permit No. # WM0401433 North Carolina Department of Environmental Quality | Division of Water Resources Winston-Salem Regional Office | 450 W. Hanes Mill Rd, Suite 300 | Raleigh, North Carolina 27105 336.776.9800