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HomeMy WebLinkAboutMO-29324_48487_CA_LSA_20230412 3502 Hayes Road • Monroe, North Carolina 28110 113 West Firetower Road, Suite G • Winterville, North Carolina 28590 Phone (704) 845-4010 • (888) 870-4133 • Fax (704) 845-4012 February 21, 2023 Mr. Jerren Rogers NCDEQ-UST Section Raleigh Regional Office 1628 Mail Service Center Raleigh, NC 27699-1628 Re: Limited Site Assessment Report Silver Express 5115 North Tryon Street Charlotte, Mecklenburg County North Carolina Facility ID Number: 0-030632 Incident Number: 48487 GRI Project Number: 5413 Dear Mr. Rogers, Please find enclosed the referenced report for the above referenced site. If you have any questions, please contact Eric Eubanks at 704-845-4010. Sincerely, Geological Resources, Inc. Leslie Maxtone-Graham Administrative Assistant Enclosure Cc: Mr. Christopher Whittaker; Nisbet Oil Company, file 3502 Hayes Road • Monroe, North Carolina 28110 113 West Firetower Road, Suite G • Winterville, North Carolina 28590 Phone (704) 845-4010 • (888) 870-4133 • Fax (704) 845-4012 Engineering Certification: C-2727 • Geology Certification: C-127 Limited Site Assessment Report Silver Express 5115 North Tryon Street Charlotte, Mecklenburg County North Carolina Facility ID Number: 0-030632 Incident Number: 48487 GRI Project Number: 5413 Prepared for: Christopher Whittaker Nisbet Oil Company 1818 Baxter Street Charlotte, North Carolina 28204 February 20, 2023 Joanna Alley, P.E. Project Manager Eric M. Eubanks, P.G. Report Writer ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 i EXECUTIVE SUMMARY The Silver Express site is located at 5115 North Tryon Street in Charlotte, Mecklenburg County, North Carolina. The property operates as a strip mall and includes a petroleum retail facility and convenience store. The site is covered by concrete, asphalt, and grass. There are two 8,200-gallon and one 10,000- gallon gasoline USTs currently in use at the site with three associated dispenser islands. The surrounding properties are commercial and residential. During annual compliance testing activities on May 25, 2021, a non-passing spill bucket was reported for one of the 8,200-gallon gasoline UST. On April 7, 2022, GRI conducted a site check in the area of the non- passing spill bucket for the 8,200-gallon gasoline UST and installed one Type II monitoring well. Contaminant concentrations reported in the ground water sample collected from monitoring well MW-1 were above the MACs and/or GCLs. No free product was observed at the site. Based on this information, an LSA was required. A receptor survey was conducted on October 4, 2022. Four water supply wells were identified within a 1,000-foot radius of the site. Of those four water supplies, one potable water supply well (WSW-4) was identified. No water supply wells were identified within a 250-foot radius of the site. Public water is available to the subject site and to all surrounding properties. No surface water bodies were identified within a 500-foot radius of the site. On October 4, 2022, a ground water sample was collected from MW-1 as part of LSA activities. The concentrations of benzene, toluene, ethylbenzene, xylenes, MTBE, naphthalene, TAME, n-butylbenzene, sec-butylbenzene, isopropylbenzene, IPE, n-propylbenzene, 1,2,4-trimethylbenzene, 1,3,5- trimethylbenzene, C5-C8 aliphatics, C9-C12 aliphatics and C9-C10 aromatics reported in the ground water sample collected from monitoring well MW-1 were above the MACs. None of the reported contaminant concentrations exceeded the GCLs. No free product was observed at the site. Based on the reported ground water contaminant concentrations and the presence of a potable water supply well within a 1,000- foot radius of the site, a Phase II Limited Site Assessment was required to be completed at the site. On January 30, 2023, GRI returned to the site to install three additional monitoring wells to determine the ground water flow direction. A ground water sample was collected from each well following installation. The concentrations of benzene, toluene, ethylbenzene, xylenes, MTBE, naphthalene, TAA, TAME, TBA, n- butylbenzene, 2-hexanone, isopropylbenzene, IPE, n-propylbenzene, 1,2,4-trimethylbenzene, 1,3,5- trimethylbenzene, C5-C8 aromatics, C9-C12 aliphatics and/or C9-C10 aromatics reported in the ground water samples collected from MW-2, MW-3 and MW-4 exceeded the MACs. The concentration of TBA reported in the ground water sample collected from MW-3 exceeded the GCLs. Although the reported concentration of 2-hexanone exceeded the MAC, this compound is not considered to be a petroleum constituent. No free product was observed at the site. Based on the presence of a potable water supply well within 1,000 feet of the site and contaminant ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 ii concentrations exceeding the MACs, the site risk classification should be “High”, and a CSA should be conducted at the site. Prior to conducting the CSA, an attempt to contact the owner of WSW-4 should be considered to determine whether they would be willing to connect to municipal water. ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 iv ACRONYMS ACM: Asbestos Containing Materials AFVR: Aggressive Fluid-Vapor Recovery ARR: Acknowledgement of Report Receipt AS: Air Sparging AST: Aboveground Storage Tank ASTM: American Society for Testing and Materials BGS: Below Ground Surface CAP: Corrective Action Plan CFR: Code of Federal Regulations CSA: Comprehensive Site Assessment DPE: Dual Phase Extraction DRO: Total Petroleum Hydrocarbons Diesel Range Organics DWM: Division of Waste Management DWR: Department of Water Resources EPA: Environmental Protection Agency EPH: Extractible Petroleum Hydrocarbons ESA: Environmental Site Assessment GCL: Gross Contamination Level GRI: Geological Resources, Inc. GRO: Total Petroleum Hydrocarbons Gasoline Range Organics LSA: Limited Site Assessment MAC: Maximum Allowable Concentration as specified in T15A NCAC 2L.0202 MADEP: Massachusetts Department of Environmental Protection MCC: Maximum Contaminant Concentrations MMPE: Mobile Multi-Phase Extraction NAPL: Non-Aqueous Phase Liquid, “Free Product” NCDEQ: North Carolina Department of Environmental Quality NCDOT: North Carolina Department of Transportation NFA: Notice of No Further Action NORR: Notice of Regulatory Requirements NOV: Notice of Violation NPDES: National Pollutant Discharge Elimination System NRP: Notice of Residual Petroleum O&M: Operation and Maintenance PAHs: Polynuclear Aromatic Hydrocarbons PCA: Pre-Construction Assessment RAL: Regulatory Action Level SCLs: Soil Cleanup Level SPCC: Spill Prevention Control and Countermeasures SVE: Soil Vapor Extraction SVOCs: Semi-Volatile Organic Compounds SWAP: Source Water Assessment and Protection SWPPP: Stormwater Pollution Prevention Plan TCLP: Toxicity Characteristic Leaching Procedure (EPA Method SW-846 1311) TOC: Top of Casing TPH: Total Petroleum Hydrocarbons USGS: United States Geological Survey UST: Underground Storage Tank UVF: Ultraviolet Fluorescence VOCs: Volatile Organic Compounds VPH: Volatile Petroleum Hydrocarbons ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 TABLE OF CONTENTS EXECUTIVE SUMMARY ....................................................................................................................... i SITE INFORMATION ........................................................................................................................... iii ACRONYMS ....................................................................................................................................... iv 1. RISK CHARACTERIZATION .....................................................................................................1 2. RECEPTOR INFORMATION .....................................................................................................4 3. SITE GEOLOGY AND HYDROGEOLOGY ...................................................................................5 4. SITE INVESTIGATION .............................................................................................................5 5. CONCLUSIONS AND RECOMMENDATIONS ............................................................................7 6. LIMITATIONS ........................................................................................................................8 FIGURES Figure 1: Site Location Map Figure 2A: Site Vicinity Map Figure 2B: Zoning Map Figure 3: Site Map Figure 4: Water Table Surface Map Figure 5: Ground Water Quality Map TABLES Table 1: UST Owner/Operator Information Table 2: UST System Information Table 3: Land Use Information Table 4: Receptor Information Table 5: Adjacent Property Owner Information Table 6: Well Construction and Gauging Information Table 7: Summary of Ground Water Sample Analytical Results APPENDICES Appendix A: Returned Water Use Questionnaires Appendix B: Mecklenburg County Property Cards Appendix C: Well Permits, Well Construction Records and Subsurface Logs Appendix D: State Correspondence Appendix E: Historical Soil Quality Data Appendix F: Laboratory Analytical Reports ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 1 1. RISK CHARACTERIZATION Limited Site Assessment Risk Classification and Land Use Form 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 2. Is a water supply well used for drinking water located within 1,000 feet of the source area of the release? YES One potable water supply well (WSW-4) is located approximately 655 feet to the northwest of the source area. 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 4. Does ground water within 500 feet of the source area of the release have the potential for future use (there is no other source of water supply other than the groundwater)? NO Public water is available to the site 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 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 If YES, explain: Intermediate Risk 7. Is a surface water body located within 500 feet of the source area of the release? NO If YES, does the maximum groundwater contaminant concentration exceed the surface water quality standards and criteria found in 15A NCAC 2B .0200 by a factor of 10? N/A 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 ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 2 10. If YES, is the source area of the release located in an area in which there is recharge to an unconfined or semi-confined deeper aquifer that is being used or may be used as a source of drinking water? N/A If YES, describe. 11. Do the levels of ground water contamination for any contaminant exceed the gross contamination levels established by the Department? YES The concentration of TBA reported in the ground water sample collected from MW-3 exceeded the GCL. Part II – Land Use Property Containing Source Area of Release The questions below pertain to the property containing the source area of the release. 1. Does the property contain one or more primary or secondary residences (permanent or temporary)? NO Explain: The subject property is an active convenience store and petroleum retail facility. 2. Does the property contain a school, daycare center, hospital, playground, park, recreation area, church, nursing home, or other place of public assembly? NO Explain: The subject property is an active convenience store and petroleum retail facility. 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 Explain: The subject property is an active convenience store and petroleum retail facility. 4. Do children visit the property? YES Explain: The site is currently a convenience store and children would likely visit the property. 5. Is access to the property reliably restricted consistent with its use (e.g., by fences, security personnel or both)? NO Explain: The property is easily accessible to pedestrian and vehicular traffic. 6. Do pavement, buildings, or other structures cap the contaminated soil? YES ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 3 Explain: The site is currently covered with concrete and asphalt. 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? The site is expected to remain in operation as an active convenience store and petroleum retail facility for the foreseeable future. 7. What is the zoning status of the property? According to the City of Charlotte Official Zoning Map, the site is zoned B-2 (General Business). 8. Is the use of the property likely to change in the next 20 years? NO Explain: The subject property is currently an active convenience store and petroleum retail facility and likely remain a convenience store for the foreseeable future. Property Surrounding Source Area of Release The questions below pertain to the area within 1,500 feet of the source area of the release (excludes property containing source area of the release): 9. What is the distance from the source area of the release to the nearest primary or secondary residence (permanent or temporary)? The closest primary residence is 4947 Fitzgerald Avenue, located approximately 560 feet northwest of the UST basin. 10. 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? Fresenius Kidney Care North Charlotte is located at 5220 North Tryon St, approximately 610 feet east-southeast of the source area at the site. 11. What is the zoning status of properties in the surrounding area? According to the City of Charlotte Official Zoning Map, the surrounding areas are zoned Business (B-2 and B-2(CD)), Industrial (I-2), Institutional (INST(CD)), Residential (R-4, R-5, R-5(CD), R-12MF, R-17MF, R-22MF and UR-2(CD)) and Transit-Oriented Development (TOD-R(CD), TOD-M(O) and TOD-TR). 12. Briefly characterize the use and activities of the land in the surrounding area. The area surrounding the site is a mixture of commercial and residential properties. Land use ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 4 information is included as Table 3. A zoning map is included as Figure 2B. 2. RECEPTOR INFORMATION 1. Water Supply Wells: A receptor survey was conducted on October 4, 2022. Four water supply wells were identified within a 1,000-foot radius of the site. Of those four water supply wells, one potable water supply well (WSW-4) was identified. None of the water supply wells are located within a 250-foot radius of the site. A Site Location Map is provided as Figure 1 and a Site Vicinity Map showing property boundaries for the site and surrounding properties is included as Figure 2A. Water supply well information is provided in Table 4. Returned water use questionnaires are included as Appendix A. 2. Public Water Supplies: Are public water supplies available within 1,500 feet of the source area of the release? YES If yes, where is the location of the nearest public water lines and the source(s) of the public water supply. Explain: Municipal water is available to the site and the surrounding properties. Water lines run along the public streets in the area. Public water is supplied by the City of Charlotte. 3. Surface Water: Identify all surface water bodies (e.g., ditch, pond, stream, lake, river) within 1,500 feet of the source area of the release. This information must be shown on the USGS topographic map. A dry stream bed was identified approximately 750 feet north of the source area. 4. Wellhead Protection Areas: Identify all planned or approved wellhead protection areas in the vicinity of the source area. This information must be shown on the USGS topographic map. Wellhead protection areas are defined in 42 USC 300h-7(e). On November 2, 2022, GRI personnel accessed the NCDEQ SWAP Program’s website to identify wellhead protection areas in the vicinity of the subject site. The site is not located within a wellhead protection area. 5. Deep Aquifers in the Coastal Plain Physiographic Region: The site is not located in the Coastal Plain Physiographic Region. 6. Subsurface Structures: No structures with basements were observed in the vicinity of the source area. The water main and other underground utilities run along North Tryon Street and Lambeth Drive, and several underground utility lines were observed on the property. 7. Property Owners and Occupants: The names and addresses of the owners of properties adjacent to the site are presented in Table ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 5 5. Property boundaries are shown on Figure 2A. Property cards for the adjacent property owners are attached as Appendix B. 3. SITE GEOLOGY AND HYDROGEOLOGY According to the 1985 Geologic Map of North Carolina, the site is in the Charlotte Belt. The bedrock is generally described as metagabbro, metadiorite and mafic plutonic-volcanic complexes. The soil samples collected during well installation activities were generally described as brown, tan and red clayey silts to sandy silts. The depths to ground water during the January 2023 gauging event ranged from 23.13 to 26.23 feet below TOC. Copies of the well permits, well construction records and subsurface logs have been included as Appendix C. A Site Map is included as Figure 3. Well construction and gauging information is presented in Table 6. Photographs of the newly installed monitoring wells are shown below: 4. SITE INVESTIGATION On May 25, 2021, a non-passing spill bucket was reported for one of the 8,200-gallon gasoline USTs, and on April 7, 2022, GRI conducted a site check at the subject site. Due to the presence of pea gravel, one monitoring well was installed adjacent to the spill bucket to a depth of approximately 30 feet BGS. Three soil samples (MW-1-5’, MW-1 (10’) and MW-1 (15’)) were collected at 5-foot intervals during the ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 6 installation of monitoring well MW-1. The MTBE concentration reported in soil sample MW-1-15’ exceeded the MCC. A ground water sample was also collected from MW-1. The concentrations of benzene, toluene, ethylbenzene, xylenes, MTBE, naphthalene, n-butylbenzene, sec-butylbenzene, isopropylbenzene, n-propylbenzene, TAA, TAME, TBA, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, C5-C8 aliphatics, C9-C12 aliphatics and C9-C10 aromatics reported in the ground water sample collected from monitoring well MW-1 exceeded the MACs. The concentrations of benzene and TBA reported in the ground water sample collected from MW-1 also exceeded the GCLs. Based on these results, a LSA was recommended in the Site Check. In accordance with the NORR dated June 8, 2022, LSA activities were conducted at the site on October 4, 2022 and monitoring well MW-1 was gauged, purged and sampled. A copy of the NORR is included as Appendix D. Based on the presence of a potable water supply well within 1,000 feet of the source area and analytical results of MW-1, three additional monitoring well were required to be installed at the site in order to determine the ground water flow direction. Monitoring wells MW-2 through MW-4 were installed at the site on January 30, 2023, each to a total depth of 30 feet BGS with a screened interval of 15 feet. The depth to ground water in the wells ranged from 23.13 to 26.23 feet below TOC. Ground water flow was to the northwest with a horizontal gradient of approximately 0.09 feet per foot between monitoring wells MW-2 and MW-1. A Water Table Surface Map is included as Figure 4. Gauging data from the January 2023 gauging event is included in Table 6. A summary of the current gauging data is shown below: Well ID Screened Interval (x to y ft. BGS) Bottom of Well (ft. BGS) Top of Casing Elevation (ft.) Depth to Water from Top of Casing (ft.) Groundwater Elevation (ft.) MW-1 10 - 30 30 100.00 25.33 74.67 MW-2 15 - 30 30 99.83 23.13 76.70 MW-3 15 - 30 30 100.06 26.23 73.83 MW-4 15 - 30 30 99.95 25.95 74.00 1. Soil Sampling On April 7, 2022, three soil samples (MW-1 (5’), MW-1 (10’) and MW-1 (15’)) were collected at 5-foot intervals during the installation of monitoring well MW-1. The soil samples were submitted for analysis of VOCs by EPA Method 8260D and/or VPH by the MADEP method. The soil-to-water MCC was below the concentration of benzene reported in soil sample MW-1 (15’). Historical soil quality data has been included as Appendix E. 2. Ground Water Sampling: On January 30, 2023, all four Type II monitoring wells at the site (MW-1 through MW-4) were gauged, purged and/or sampled in accordance with NCDEQ guidelines. The ground water samples collected from MW-2, MW-3, and MW-4 were submitted for analyses of VOCs, lead and MADEP VPH. The ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 7 concentrations of benzene, toluene, ethylbenzene, xylenes, MTBE, naphthalene, TAA, TAME, TBA, n- butylbenzene, 2-hexanone, isopropylbenzene, IPE, n-propylbenzene, 1,2,4-trimethylbenzene, 1,3,5- trimethylbenzene, C5-C8 aromatics, C9-C12 aliphatics, and/or C9-C10 aromatics reported in the ground water samples collected from MW-2, MW-3, and MW-4 exceeded the MACs. The concentration of TBA reported in the ground water sample collected from MW-3 exceeded the GCLs. Although the reported concentration of 2-hexanone exceeded the MAC, this compound is not considered to be a petroleum constituent. No free product was observed at the site. A Ground Water Quality Map is included as Figure 5. A summary of the ground water analytical data is included in Table 7. A copy of the laboratory analytical report is included in Appendix F. A summary of the most recent ground water sampling data is shown below: Contaminant of Concern  Benzene Toluene Ethylbenzene Xylenes MTBE Naphthalene TBA Well ID MAC (µg/l) 1 600 600 500 20 6 10 GCL (µg/l) 5,000 260,000 80,000 50,000 20,000 6,000 10,000 MW-1 3,880 45,000 4,810 24,780 5,960 1,230 <200 MW-2 122 3,690 1,300 10,600 168 312 1,390 MW-3 3,240 26,400 2,990 17,100 18,000 346 27,700 MW-4 4.55 J 42.2 11.9 58.1 2,150 10.8 1,030 2. Quality Control: The ground water samples were immediately placed in laboratory-supplied containers after collection, which were then placed in iced coolers. New disposable bailers were used to sample the monitoring wells and new nitrile gloves were worn during ground water sampling. Samples were logged using proper chain-of-custody procedures. The samples were transported to a North Carolina certified laboratory for analysis. 5. CONCLUSIONS AND RECOMMENDATIONS  The site is a strip mall that contains an active convenience store and petroleum retail facility. Land use in the area consists of commercial and residential properties.  A receptor survey was conducted on October 4, 2022. Four water supply wells were identified within a 1,000-foot radius of the site. Of the four water supply wells, one potable well (WSW-4) was identified. No water supply wells were identified within a 250-foot radius of the site. Public water is available to the subject site and to all surrounding properties.  No surface water bodies were identified within a 500-foot radius of the site.  On January 30, 2023, three Type II monitoring wells (MW-2 through MW-4) were installed at the site, each to a total depth of 30 feet BGS with a screened interval of 15 feet.  Ground water flow was to the northwest with a horizontal gradient of approximately 0.09 feet per foot between monitoring wells MW-2 and MW-1. ___________________________________________________________________________________________ Prepared by: Geological Resources, Inc. Limited Site Assessment Report Prepared on: February 20, 2023 Silver Express Project Manager: Joanna Alley, P.E. GRI Project No. 5413 8  On January 30, 2023 all four monitoring wells at the site (MW-1 through MW-4) were gauged, purged and/or sampled. The concentrations of benzene, toluene, ethylbenzene, xylenes, MTBE, naphthalene, TAA, TAME, TBA, n-butylbenzene, 2-hexanone, isopropylbenzene, IPE, n- propylbenzene, 1,2,4-trimethylbenzene, 1,3,5-trimethylbenzene, C5-C8 aromatics, C9-C12 aliphatics, and/or C9-C10 aromatics reported in the ground water samples collected from MW-2, MW-3, and MW-4 exceeded the MACs. The concentration of TBA reported in the ground water sample collected from MW-3 exceeded the GCLs. Although the reported concentration of 2- hexanone exceeded the MAC, this compound is not considered to be a petroleum constituent. No free product was observed at the site.  Based on the presence of a potable water supply well within 1,000 feet of the site and contaminant concentrations exceeding the MACs, the site risk classification should be “High”, and a CSA should be conducted at the site. Prior to conducting the CSA, an attempt to contact the owner of WSW-4 should be considered to determine whether they would be willing to connect to municipal water. 6. LIMITATIONS This report has been prepared for the exclusive use of Nisbet Oil Company for specific application to the referenced site in Mecklenburg County, North Carolina. The assessment was conducted based on the scope of work and level of effort specified by NCDEQ and with resources adequate only for that scope of work. Our findings have been developed in accordance with generally accepted standards of geology and hydrogeology practices in the State of North Carolina, available information, and our professional judgment. No other warranty is expressed or implied. The data that are presented in this report are indicative of conditions that existed at the precise locations sampled and at the time the samples were collected. In addition, the data obtained from samples would be interpreted as being meaningful with respect to parameters indicated in the laboratory report. No additional information can logically be inferred from these data. FIGURES SITE LOCATION500 M2000 FTDate: 06/20/2020Location: 35.258973° N -80.780409° W Dad Figure 1 Site Location Map Silver Express5115 North Tryon Street Charlotte, Mecklenburg County, NC Incident No. 48487 GRI Project No. 5413 "J "J "J "J SITE 08902405 089024040890240608902403WSW-4WSW-3WSW-2WSW-1 09101131 08911104 08911115 09101124 08 9 111 13 091011350891110308911114 091 011290891110208911101 N Tryon StEastway DrLambeth DrBennett StCurtiswood Dr Bi ngham DrBurroughs StGal ax D r Northpark Mall DrHillsboro Av Or chi d Brid g e Rd Fitzgerald Av W Eas t wa y Dr Edward St Northchase Dr Spri n gview Rd Masor LnPri nc e Charl es StKentbrook DrOld Concord Rd Pumpernickel Rd J H Wheeler St St Anne PlHi gh la k e Dr M errick StHolloway St FIGURE 2A: SITE VICINITY MAPSILVER EXPRESS5115 NORTH TRYON STREETCHARLOTTE, MECKLENBURG COUNTYNORTH CAROLINAINCIDENT NO. 48487GRI NO. 5413 PREPARED BY:GEOLOGICALRESOURCES, INC.SEPTEMBER 30, 2022 ³ 0 300150Feet1 inch = 300 feet 1,500-FOOT RADIUS 1,000-FOOT RADIUS 500-FOOT RADIUS 250-FOOT RADIUS 1 2 5 3 4 LEGEND Dry Stream Bed "J Water Supply Well Streets Railroads Creeks_Streams Lakes_Ponds Adjacent Properties Mecklenburg County Parcels Land Use Code1 6 7 "J "J "J "J SITE WSW-4WSW-3WSW-2WSW-1 N Tryon StEastway DrLambeth DrBennett StCurtiswood Dr Bi ngham DrBurroughs StGal ax D r Northpark Mall DrHillsboro Av Or chi d Brid g e Rd Fitzgerald Av W Eas t wa y Dr Edward St Northchase Dr Spri n gview Rd Masor LnPri nc e Charl es StKentbrook DrOld Concord Rd Pumpernickel Rd J H Wheeler St St Anne PlHi gh la k e Dr M errick StHolloway St SEPTEMBER 30, 2022 ³ 0 300150Feet1 inch = 300 feet 1,500-FOOT RADIUS 1,000-FOOT RADIUS 500-FOOT RADIUS 250-FOOT RADIUS 1 2 5 3 4 LEGEND "J Water Supply Well Streets Railroads Creeks_Streams Lakes_Ponds ZONING -R-5 ZONING - R-4 ZONING - R-5(CD) ZONING - INST(CD) ZONING - TOD- R(CD) ZONING - TOD-M(O) ZONING - R-12MF ZONING - R-22MF ZONING - TOD-TR ZONING - R-17MF ZONING - UR-2(CD) ZONING - B-2 ZONING - B-2(CD) ZONING - I-2 Mecklenburg County Parcels Land Use Code1 6 7 FIGURE 2B: ZONING MAPSILVER EXPRESS5115 NORTH TRYON STREETCHARLOTTE, MECKLENBURG COUNTYNORTH CAROLINAINCIDENT NO. 48487GRI NO. 5413 PREPARED BY:GEOLOGICAL RESOURCES, INC. TABLES Date: 04/28/22 Facility ID#: 0-030632 UST ID Number 1-3 Facility ID Number Owner or Operator? Owner UST ID Number 1-3 Facility ID Number Owner or Operator? Owner 1818 Baxter Street, Charlotte, NC 28204 704-458-8271 0-030632 Name of Owner or Operator Dates of Ownership / Operation NISBET Oil Company 4/1/1989 to present TABLE 1 UST OWNER/OPERATOR INFORMATION SILVER EXPRESS (INCIDENT NO. 48487) Address Telephone Number Address Telephone Number Unknown Unknown 0-030632 Name of Owner or Operator Dates of Ownership / Operation Unknown 09/21/1988 to 4/1/1989 Page 1 of 1 Date: 04/28/22 Was Release Associated with UST System? (Yes / No) 1 Gasoline NA 10,000 09/21/1988 Single Wall Steel Unknown Single Wall FRP Current No 2 Gasoline NA 8,200 09/21/1988 Single Wall Steel Unknown Single Wall FRP Current Yes 3 Gasoline NA 8,200 09/21/1988 Single Wall Steel Unknown Single Wall FRP Current No UST ID No. TABLE 2 UST SYSTEM INFORMATION SILVER EXPRESS (INCIDENT NO. 48487) Facility ID #: 0-030632 Tank Dimensions Description of Associated Product Piping and Pumps Status of UST Current or Most Recent Contents Previous Contents Capacity (gallons) Date Installed Construction Details Page 1 of 1 Date: 10/06/2022 Facility ID # : 00-0-0000030632 Map ID No. Land Use Feature Zoning Description Address Distance from Source Area (feet) 1 Kiddie Farms Child Development Center B-2 Daycare 131 Bennett St., Charlotte, NC 28213 ~1,280 2 Iglesia de Dios Sinai Charlotte NC I-2 Church 4901 C, N Tryon St., Charlotte, NC 28213 ~920 3 Aunt Alice Day Care Center Daycare 224 Bennett St., Charlotte, NC 28213 ~1,080 4 Smart Kids Lambeth Daycare 225 Lambeth Dr., Charlotte, NC 28213 ~545 5 Iglesia Universal TOD-TR Church 5000 N Tryon St., Charlotte, NC 28213 ~775 6 Linda's Daycare R-5 Daycare 311 Prince Charles St., Charlotte, NC 28213 ~1,455 7 Fresenius Kidney Care North Charlotte I-2 Medical Facility 5220 N Tryon Street A, Charlotte, NC 28213 ~610 n/a B-2 General Business n/a n/a n/a B-2/(CD) Neighborhood Buisness (Conditional Zoning)n/a n/a n/a UR-2/(CD) Urban Residential (Conditional Zoning)n/a n/a n/a I-2 Industrial (General District) n/a n/a n/a INST(CD) Institutional (Conditional Zoning) n/a n/a n/a R-4 Single Family 4.0 Units Per Acre n/a n/a n/a R-5 Single Family 5.0 Units Per Acre n/a n/a n/a R-5(CD) Single Family (Conditional Zoning) n/a n/a n/a R-12MF Residential Multi-Family (Conditonal Zoning) 12.0 units per acre n/a n/a n/a R-17MF Residential Multi-Family (Conditional Zoning) 17.0 Units per acre n/a n/a n/a R-22MF Residential Multi-Family (Conditional Zoning) 22.0 Units per acre n/a n/a n/a TOD-R(CD) Transit Oriented Development - Residentially Oriented n/a n/a n/a TOD-M(O) Transit Oriented Development - Mixed- Use Oriented n/a n/a n/a TOD-TR Transit Oriented Development - Transit Transition n/a n/a Note: • Properties are keyed to Figure 2B. TABLE 3 SILVER EXPRESS (INCIDENT NO. 48487) LAND USE INFORMATION R-12MF Page 1 of 1 Facility ID # : 0-030632 Well ID. Parcel ID No. Well Owner Mailing Address Well Address Well Status (Active/In-Active) Well Use (Potable / Non- Potable etc.) Municpal Water Available Yes/No Connected to Municipal Water Yes/No Distance from source area of release (ft.) 1 8902402 Gloria Christine Washington 4920 Hillsboro Avenue Charlotte, NC 28213 4909 Fitzgerald Avenue Charlotte, NC 28213 Unknown Non-potable Yes Yes ~1,030 NW 2 8902403 Gloria Christine Washington 4920 Hillsboro Avenue Charlotte, NC 28213 4915 Fitzgerald Avenue Charlotte, NC 28213 Unknown Non-potable Yes *Vacant Lot ~985 NW 3 8902404 Jerry and Donna Ross 307 Riverside Drive Mount Holly, NC 28120 4929 Fitzgerald Avenue Charlotte, NC 28213 Unknown Non-potable Yes Yes ~895 NW 4 8902406 BDF1 Homes 2 LLC 3495 Piedmont Road NE, Bldg 11 Suite 300, Atlanta, GA 30305 4947 Fitzgerald Avenue Charlotte, NC 28213 Active Potable Yes No ~655' NW Notes: • Receptors are shown on Figure 2A. • n/a: not applicable. TABLE 4 RECEPTOR INFORMATION SILVER EXPRESS (INCIDENT NO. 48487) Date: 10/07/2022 Page 1 of 1 Date: 10/06/2022 Facility ID #: 0-030632 Parcel ID Parcel Address Property Owner Name Mailing Address 08911104 5115 N Tryon St. Charlotte, NC 28213 Margaret Ann Wallace 5115 N Tryon St., Suite C Charlotte, NC 28213 08911113 5135 N Tryon St. Charlotte, NC 28213 Ruth G. Dellinger and Chesley Y. Dellinger, Jr. 6221 Woodbridge Rd. Charlotte, NC 28227 08911115 220 Lambeth Dr. Charlotte, NC 28213 Kennedy Properties, LLC P.O. Box 33324 Charlotte, NC 28233 08911114 210 Lambeth Dr. Charlotte, NC 28213 Day Care Properties, LLC 1014 Maxwell Mill Rd. Fort Mill, SC 29708 08911101 130 Lambeth Dr. Charlotte, NC 28213 Estelle W. Fuller and Arnold R. Fuller Sr. 4830 Carnbrook Pl. Charlotte, NC 28212 08911102 122 Lambeth Dr. Charlotte, NC 28213 Zeeshawn, Inc.1203 E. Sugar Creek Rd. Charlotte, NC 28205 08911103 5101 N Tryon St. Charlotte, NC 28213 Margaret Ann Wallace 5115 N Tryon St., Suite C Charlotte, NC 28213 09101124 5038 and 5100 N Tryon St. Charlotte, NC 28213 Sary Enterprises, LLC 1516 Glenn Valley Dr. Matthews, NC 28105 09101129 5108 N Tryon St. Charlotte, NC 28213 09101131 5130 N Tryon St. Charlotte, NC 28213 09101135 5136 N Tryon St. Charlotte, NC 28213 Corporate Property Associates & Auto Zone, Inc. P.O. Box 2198 Memphis, TN 38101 Note: • Properties are keyed to Figure 2A. TABLE 5 SILVER EXPRESS (INCIDENT NO. 48487) ADJACENT PROPERTY INFORMATION 32 West 21st St. Huntington Station, NY 11746La Placita Page 1 of 1 Date: 02/01/23 Well ID Date Installed (m/dd/yy) Date Water Level Measured (m/dd/yy) Well Casing Depth (ft. BGS) Screened Interval (x to y ft. BGS) Bottom of Well (ft. BGS) Top of Casing Elevation (ft.) Depth to Water from Top of Casing (feet) Free Product Thickness (ft.) Ground Water Elevation (ft.) Comments 04/09/22 24.05 ---75.95 10/04/22 26.48 ---73.52 01/30/23 25.33 ---74.67 MW-2 01/30/23 01/30/23 15 15 - 30 30 99.83 23.13 ---76.70 MW-3 01/30/23 01/30/23 15 15 - 30 30 100.06 26.23 ---73.83 MW-4 01/30/23 01/30/23 15 15 - 30 30 99.95 25.95 ---74.00 Notes: • Elevation relative to mean sea level. • ft BGS : feet below ground surface. • NM : Not measured. TABLE 6 WELL CONSTRUCTION AND GAUGING INFORMATION SILVER EXPRESS (INCIDENT NO. 48487) Facility ID # : 0-030632 3010 - 301004/07/22MW-1 100.00 Page 1 of 1 Date: 02/15/23 EPA 504.1 SW846 6010D Well ID Date Sampled (mm/dd/yy) 1 600 600 500 20 6 40 128 10 70 70 40 70 70 70 400 400 0.02 15 400 700 200 5,000 260,000 80,000 50,000 20,000 6,000 40,000 128,000 10,000 5,900 8,800 40,000 30,500 70,000 26,100 28,500 24,100 50 15,000 NE NE NE 10/04/22 3,880 45,000 4,810 24,780 5,960 1,230 <200 1,070 <200 354 218 NA 582 81.8 2,200 4,820 3,240 NR NR 75,000 63,700 25,300 MW-2 01/30/23 122 3,690 1,300 10,600 168 312 1,330 7.96 J 1,390 97.4 51.2 <3.80 115 <5.00 375 2,610 778 NR <10.0 2,500 11,700 6,930 MW-3 01/30/23 3,240 26,400 2,990 17,100 18,000 346 13,700 1,920 27,700 16.6 9.28 128 89.6 121 216 2,210 467 NR <10.0 14,000 11,400 5,370 MW-4 01/30/23 4.55 J 42.2 11.9 58.1 2,150 10.8 150 128 1,030 <1.80 <2.00 <3.80 <1.80 21.5 2.59 J 14.2 9.19 NR <10.0 878 J <51.6 165 10/04/22 <0.13 <0.13 <0.13 NA <0.13 <0.13 NR NR NR <0.13 <0.13 NA <0.13 <0.13 <0.13 <0.13 <0.13 NR NR NR NR NR 01/30/23 <0.180 <0.220 <0.170 <0.210 <0.140 <0.470 NR NR NR <0.180 <0.200 <0.380 <0.180 <0.500 <0.190 <0.190 <0.180 NR NR NR NR NR Notes: • Results reported in micrograms per liter (µg/l). • MAC: Maximum Allowable Concentration as specified in T15A NCAC 2L.0202. • < : Less than the method detection limit specified in the laboratory report. • GCL: Gross contamination level. • Concentrations in bold face type indicate the reported concentrations were above the MAC. • J: Estimated value. • E: indicated value exceeds calibration range • NE: Not established. • NA: Not Analyzed. • NR: Not requested. • Refer to laboratory report for other detectable concentrations which did not exceed the MACs. EPA 6200B Trip Blank TABLE 7 SUMMARY OF GROUND WATER SAMPLE ANALYTICAL RESULTS SILVER EXPRESS (INCIDENT NO. 48487)Facility ID # : 0-030632 MADEP VPH C5-C8 Aliphatics1,2-Dibromoethane(EDB)LeadC9-C10 Aromatics1,2,4-Trimethylbenzene2-Hexanonen-PropylbenzeneDi-isopropyl etherIsopropylbenzeneAnalytical Method →BenzeneTolueneEthylbenzeneTotal Xylenestert-Butyl alcohol(TBA)tert-Amyl methyl ether (TAME)Methyl-tert-butyl ether(MTBE)NaphthaleneMW-1 Contaminant of Concern →sec-Butylbenzenen-Butylbenzenetert-Amyl alcohol(TAA)MAC (μg/l) GCL (μg/l)C9-C12 Aliphatics1,3,5-TrimethylbenzenePage 1 of 1 APPENDICES APPENDIX A Returned Water Use Questionnaires 5413 Received OCT 19 2022 APPENDIX B Mecklenburg County Property Cards MECKLENBURG COUNTY, North Carolina POLARIS 3G PARCEL OWNERSHIP AND GIS SUMMARY Date Printed: 11/01/2022 Identity Parcel ID GIS ID 09101135 09101135 Ownership Owner Name Mailing Address ATTN: DEPT 8088 PO BOX 2198 MEMPHIS TN 38101 CORPORATE PROPERTY ASSOCIATES % AUTO ZONE INC PO BOX 2198 MEMPHIS TN 38101 Property Characteristics Legal desc NA Land Area 0.57 AC Fire District CITY OF CHARLOTTE Special District Account Type NON-NC CORP Municipality CHARLOTTE Property Use COMMERCIAL Deed Reference(s) and Sale Price Deed Sale Date Sale Price 11000-793 12/30/1999 $0.00 Site Location ETJ Area Charlotte Charlotte Historic District No Charlotte 6/30/2011 Annexation Area No Census Tract #53.06 Zoning Contact appropriate Planning Department or see Map. Water Quality Buffer Parcel Inside Water Quality Buffer No Post Construction District Jurisdiction Charlotte District Central Catawba FEMA and Community Floodplain FEMA Panel#3710456500K FEMA Panel Date 02/19/2014 FEMA Flood Zone OUT:VIEW FEMA FLOODPLAIN TO VERIFY Community Flood Zone OUT:VIEW COMMUNITY FLOODPLAIN TO VERIFY Stream Watershed Districts Stream Watershed Name UPPER LITTLE SUGAR Situs Addresses Tied to Parcel 5136 N TRYON ST CHARLOTTE 04/09/2014 from Mecklenburg County This map or report is prepared for the inventory of real property within Mecklenburg County and is compiled from recorded deeds, plats, tax maps, surveys, planimetric maps, and other public records and data. Users of this map or report are hereby notified that the aforementioned public primary information sources should be consulted for verification. Mecklenburg County and its mapping contractors assume no legal responsibility for the information contained herein. Page 1/1 APPENDIX C Well Permits, Well Construction Records and Subsurface Logs SIPForm–revised2/15/11 MecklenburgCountyHealthDepartmentGroundwater&WastewaterServices 700N.TryonSt.,Suite211Charlotte,NC28202Phone:(704)336-5103 Fax:(704)336-6894http://groundwater.charmeck.org PermitIssuanceDate:_______________ PermitNumber:____________________ SUBSURFACE INVESTIGATION PERMIT I. Well Owner Information Name:___________________________________ Attn:_____________________________________ Phone#:_____________________ Address1:________________________________ Address2:________________________________ City:__________________________State:_______Zip:_____________ II.Agent Information(if applicable) Name:___________________________________ Attn:_____________________________________ Phone#:_____________________ Address1:________________________________ Address2:________________________________ City:__________________________State:_______Zip:_____________ III. Site Information SiteName;________________________________ ParcelIDNumber:_____________________ Address:________________________________ City:__________________________State:_______Zip:_____________ General Conditions of This Permit: •ThispermitshallbeVALIDforaperiodnottoexceedtwelve(12)monthsfromthedateofissuance. •ThispermitisVALIDforthesitespecifiedabove and mustbeon-siteduringthecourseoftheinvestigationandmadeavailabletoaDepartmentrepresentativeuponrequest. •ANorthCarolinaCertifiedWellContratormustperformanywellcontractoractivitiesassociatedwiththispermit. •AllwellsshallbeconstructedandabandonedtothestandardsofChapterVI,SectionVandSectionVIoftheMecklenburgCountyGroundwaterWellRegulations. •Alltemporarywells,includingthoseinstalledusingDirectPushTechnology,mustbeabandoned tothestandardsofChapterVI,SectionVIoftheMecklenburgCountyGroundwaterWellRegulations. •RegistrationinformationforallwellsmustbesubmittedtotheDepartmentwithinthirty(30)daysofwellcompletion.Ifwatersamplesarecollected,itisrecommendedthatthewellNOTberegistereduntilthe analyticalresultsarereceived. 28208 3205 Freedom Dr. (980)314-1680 North Carolina Department of Environmental Quality | Division of Water Resources Mooresville Regional Office | 601 East Center Avenue, Suite 301 | Mooresville, NC 28115 704.663.1699 December 29, 2022 Mr. Christopher Whittaker (via email) Nisbet Oil Company 1818 Baxter Street Charlotte, NC 28235 RE: Monitoring Well Construction Permit Silver Express Permit # WM0301254 5115 N. Tryon Street, Charlotte Mecklenburg County Dear Mr. Whittaker, In accordance with your completed application received on December 28, 2022, we are forwarding herewith Monitoring Well Construction Permit Numbered WM0301254 and issued for the construction of four (4) monitoring wells located near the subject site in Charlotte, Mecklenburg County. This Permit will be effective for one year from the date of issuance and shall be subject to the conditions and limitations as specified therein. Should you have any questions, please contact Edward Watson at (704) 235-2199, or by email at edward.watson@ncdenr.gov. Sincerely, Andrew H. Pitner, P.G. Assistant Regional Supervisor Mooresville Regional Office Water Quality Regional Operations Section Division of Water Resources CC: WQROS, Central Office (via Laserfiche) Joanna Alley, Geological Resources, Inc. (via email) NORTH CAROLINA DEPARTMENT OF ENVIRONMENTAL QUALITY DIVISION OF WATER RESOURCES 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 Nisbet Oil Company (Geological Resources, Inc. as Agent) FOR THE CONSTRUCTION OF A MONITOR WELL SYSTEM consisting of four (4) monitoring wells owned by Nisbet Oil Company at the subject site located along North Tryon Street., Charlotte, Mecklenburg County. This Permit is issued in accordance with the application received on December 28, 2022, 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: 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. If the well penetrates any water-bearing zone that contains contaminated waters, the upper three feet of the well shall be grouted within one day after the casing is set or the well abandoned. 8. Temporary wells must be permanently abandoned or converted to a permanent well within seven days (168 hours) of completion of drilling the borehole. 9. Adequate permits shall be obtained from Mecklenburg County Groundwater and Wastewater Services. Permit issued the 29th day of December 2022 FOR THE NORTH CAROLINA ENVIRONMENTAL MANAGEMENT COMMISSION _______________________________________________ Andrew H. Pitner, P.G., Assistant Regional Supervisor Division of Water Resources By Authority of the Environmental Management Commission Permit No. # WM0301254 Site Name:Date: Project Number:Log Completed By: Company:Drill Type: Driller:License Number: Boring ID:Depth: Diameter:Completion Details: PID Lab From To (ppm)Sample Description Color Moisture Odor Depth (ft)Lithology SITE INFORMATION DRILLING INFORMATION BORING INFORMATION Photo 1: Preclearing Photo 2: Completion Silver Express 5413 01/30/2023 Kyle Perry Geological Resources, Inc. Matt Steele Solid Stem Auger 4548A MW-2 6" 30' Well installed at completion 0.0 0.5 asphalt 0.5 6.0 sandy SILT tan/red Dry None 6.0 19.0 clayey SILT red Dry None 19.0 24.0 sandy SILT tan/red Moist Present 24.0 30.0 sandy SILT red/brown Wet Present Site Name:Date: Project Number:Log Completed By: Company:Drill Type: Driller:License Number: Boring ID:Top of Casing: Diameter:Depth to Water: From (ft)To (ft)From (ft)To (ft)Diameter (in) From (ft)To (ft)From (ft)To (ft)Diameter (in) From (ft)To (ft)From (ft)To (ft)Diameter (in) Sand Bentonite Grout Screen Casing SITE INFORMATION DRILLING INFORMATION WELL CONSTRUCTION INFORMATION DIAGRAM -MONITORING WELL Sand Bentonite Grout Screen Inner Casing Outer Casing Silver Express 5413 01/30/2023 Kyle Perry Geological Resources, Inc. Matt Steele Solid Stem Auger 4548A MW-2 6"23.13 14 30 12 14 0 12 0 0 0 0 15 2 15 30 2 12 14 30 15 30 WELLCONSTRUCTIONRECORD Thisformcanbeusedforsingleormultiplewells FormGW-1 NorthCarolinaDepartmentofEnvironmentandNaturalResources–DivisionofWaterResources RevisedAugust2013 1.WellContractorInformation: WellContractorName NCWellContractorCertificationNumber CompanyName2.WellConstructionPermit#: List all applicable well permits (i.e. County, State, Variance, Injection, etc.) 3.WellUse(checkwelluse):WaterSupplyWell:□Agricultural□Municipal/Public□Geothermal(Heating/CoolingSupply)□ResidentialWaterSupply(single) □Industrial/Commercial□ResidentialWaterSupply(shared)□Irrigation Non-WaterSupplyWell:□Monitoring□Recovery InjectionWell:□AquiferRecharge□GroundwaterRemediation □AquiferStorageandRecovery□SalinityBarrier□AquiferTest□StormwaterDrainage □ExperimentalTechnology□SubsidenceControl □Geothermal(ClosedLoop)□Tracer□Geothermal(Heating/CoolingReturn)□Other(explainunder#21Remarks) 4.DateWell(s)Completed:____________WellID#______________________5a.WellLocation: Facility/OwnerNameFacilityID#(ifapplicable) PhysicalAddress,City,andZip CountyParcelIdentificationNo.(PIN)5b.LatitudeandLongitudeindegrees/minutes/secondsordecimaldegrees:(ifwellfield,onelat/longissufficient)N W 6.Is(are)thewell(s):□Permanentor□Temporary 7.Isthisarepairtoanexistingwell:□Yesor□No If this is a repair, fill out known well construction information and explain the nature of the repair under #21 remarks section or on the back of this form. 8.Numberofwellsconstructed: For multiple injection or non-water supply wells ONLY with the same construction, you can submit one form. 9.Totalwelldepthbelowlandsurface: (ft.) For multiple wells list all depths if different (example- 3@200’ and 2@100′) 10.Staticwaterlevelbelowtopofcasing:(ft.) If water level is above casing, use “+” 11.Boreholediameter:(in.)12.Wellconstructionmethod: (i.e.auger,rotary,cable,directpush,etc.)FORWATERSUPPLYWELLSONLY:13a.Yield(gpm) Methodoftest:13b.Disinfectiontype:Amount: 14.WATERZONESFROMTODESCRIPTION ft.ft. ft.ft. 15.OUTERCASING(formulti-casedwells)ORLINER(ifapplicable)FROMTODIAMETERTHICKNESSMATERIAL ft.ft.in. 16.INNERCASINGORTUBING(geothermalclosed-loop) FROMTODIAMETERTHICKNESSMATERIAL ft.ft.in. ft.ft.in. 17.SCREENFROMTODIAMETERSLOTSIZETHICKNESSMATERIAL ft.ft.in. ft.ft.in. 18.GROUT FROMTOMATERIALEMPLACEMENTMETHOD&AMOUNT ft.ft. ft.ft. ft.ft. 19.SAND/GRAVELPACK(ifapplicable) FROMTOMATERIALEMPLACEMENTMETHOD ft.ft. ft.ft. 20.DRILLINGLOG(attachadditionalsheetsifnecessary)FROMTODESCRIPTION(color,hardness,soil/rocktype,grainsize,etc.) ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. 21.REMARKS 22.Certification: SignatureofCertifiedWellContractorDate By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with 15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy of this record has been provided to the well owner. 23.Sitediagramoradditionalwelldetails:Youmayusethebackofthispagetoprovideadditionalwellsitedetailsorwellconstructiondetails.Youmayalsoattachadditionalpagesifnecessary.SUBMITTALINSTUCTIONS24a.ForAllWells:Submitthis formwithin30daysofcompletionofwellconstructiontothefollowing:DivisionofWaterResources,InformationProcessingUnit,1617MailServiceCenter,Raleigh,NC27699-161724b.ForInjectionWellsONLY:Inadditiontosendingtheformtotheaddressin 24aabove,alsosubmitacopyofthisformwithin30daysofcompletion ofwellconstructiontothefollowing:DivisionofWaterResources,UndergroundInjectionControlProgram,1636MailServiceCenter,Raleigh,NC27699-1636 24c.ForWaterSupply&InjectionWells: Also submit one copyof this form within30days ofcompletionofwellconstructiontothecountyhealthdepartmentofthecountywhereconstructed. ForInternalUseONLY: _______________ Matt Steele 4548A Geological Resources, Inc. WM0301254 01/30/2023 MW-2 Silver Express 00-0-0000030632 5115 North Tryon Street, Charlotte 28213 Mecklenburg 08911104 35.25855115 80.78046020 1 30 23.13 6" Solid Stem Auger 23.13 30 sandy SILT 0 0 0 0 15 2 Sch 40 PVC 15 30 2 0.010 Sch 40 PVC 0 12 grout pour 12 14 bentonite pour 14 30 #2 Sand Pour 0.0 0.5 asphalt 0.5 6.0 sandy SILT 6.0 19.0 clayey SILT 19.0 24.0 sandy SILT 24.0 30.0 sandy SILT 01/30/2023 Site Name:Date: Project Number:Log Completed By: Company:Drill Type: Driller:License Number: Boring ID:Depth: Diameter:Completion Details: PID Lab From To (ppm)Sample Description Color Moisture Odor Depth (ft)Lithology SITE INFORMATION DRILLING INFORMATION BORING INFORMATION Photo 1: Preclearing Photo 2: Completion Silver Express 5413 01/30/2023 Kyle Perry Geological Resources, Inc. Matt Steele Solid Stem Auger 4548A MW-3 6" 30' Well installed at completion 0.0 0.5 asphalt 0.5 7.0 clayey SILT red Dry None 7.0 18.0 silty CLAY red/brown Dry None 18.0 25.0 silty CLAY red Moist Present 25.0 30.0 silty CLAY brown/red Wet Present Site Name:Date: Project Number:Log Completed By: Company:Drill Type: Driller:License Number: Boring ID:Top of Casing: Diameter:Depth to Water: From (ft)To (ft)From (ft)To (ft)Diameter (in) From (ft)To (ft)From (ft)To (ft)Diameter (in) From (ft)To (ft)From (ft)To (ft)Diameter (in) Sand Bentonite Grout Screen Casing SITE INFORMATION DRILLING INFORMATION WELL CONSTRUCTION INFORMATION DIAGRAM -MONITORING WELL Sand Bentonite Grout Screen Inner Casing Outer Casing Silver Express 5413 01/30/2023 Kyle Perry Geological Resources, Inc. Matt Steele Solid Stem Auger 4548A MW-3 6"26.23 14 30 12 14 0 12 0 15 2 15 30 2 12 14 30 15 30 WELLCONSTRUCTIONRECORD Thisformcanbeusedforsingleormultiplewells FormGW-1 NorthCarolinaDepartmentofEnvironmentandNaturalResources–DivisionofWaterResources RevisedAugust2013 1.WellContractorInformation: WellContractorName NCWellContractorCertificationNumber CompanyName2.WellConstructionPermit#: List all applicable well permits (i.e. County, State, Variance, Injection, etc.) 3.WellUse(checkwelluse):WaterSupplyWell:□Agricultural□Municipal/Public□Geothermal(Heating/CoolingSupply)□ResidentialWaterSupply(single) □Industrial/Commercial□ResidentialWaterSupply(shared)□Irrigation Non-WaterSupplyWell:□Monitoring□Recovery InjectionWell:□AquiferRecharge□GroundwaterRemediation □AquiferStorageandRecovery□SalinityBarrier□AquiferTest□StormwaterDrainage □ExperimentalTechnology□SubsidenceControl □Geothermal(ClosedLoop)□Tracer□Geothermal(Heating/CoolingReturn)□Other(explainunder#21Remarks) 4.DateWell(s)Completed:____________WellID#______________________5a.WellLocation: Facility/OwnerNameFacilityID#(ifapplicable) PhysicalAddress,City,andZip CountyParcelIdentificationNo.(PIN)5b.LatitudeandLongitudeindegrees/minutes/secondsordecimaldegrees:(ifwellfield,onelat/longissufficient)N W 6.Is(are)thewell(s):□Permanentor□Temporary 7.Isthisarepairtoanexistingwell:□Yesor□No If this is a repair, fill out known well construction information and explain the nature of the repair under #21 remarks section or on the back of this form. 8.Numberofwellsconstructed: For multiple injection or non-water supply wells ONLY with the same construction, you can submit one form. 9.Totalwelldepthbelowlandsurface: (ft.) For multiple wells list all depths if different (example- 3@200’ and 2@100′) 10.Staticwaterlevelbelowtopofcasing:(ft.) If water level is above casing, use “+” 11.Boreholediameter:(in.)12.Wellconstructionmethod: (i.e.auger,rotary,cable,directpush,etc.)FORWATERSUPPLYWELLSONLY:13a.Yield(gpm) Methodoftest:13b.Disinfectiontype:Amount: 14.WATERZONESFROMTODESCRIPTION ft.ft. ft.ft. 15.OUTERCASING(formulti-casedwells)ORLINER(ifapplicable)FROMTODIAMETERTHICKNESSMATERIAL ft.ft.in. 16.INNERCASINGORTUBING(geothermalclosed-loop) FROMTODIAMETERTHICKNESSMATERIAL ft.ft.in. ft.ft.in. 17.SCREENFROMTODIAMETERSLOTSIZETHICKNESSMATERIAL ft.ft.in. ft.ft.in. 18.GROUT FROMTOMATERIALEMPLACEMENTMETHOD&AMOUNT ft.ft. ft.ft. ft.ft. 19.SAND/GRAVELPACK(ifapplicable) FROMTOMATERIALEMPLACEMENTMETHOD ft.ft. ft.ft. 20.DRILLINGLOG(attachadditionalsheetsifnecessary)FROMTODESCRIPTION(color,hardness,soil/rocktype,grainsize,etc.) ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. 21.REMARKS 22.Certification: SignatureofCertifiedWellContractorDate By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with 15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy of this record has been provided to the well owner. 23.Sitediagramoradditionalwelldetails:Youmayusethebackofthispagetoprovideadditionalwellsitedetailsorwellconstructiondetails.Youmayalsoattachadditionalpagesifnecessary.SUBMITTALINSTUCTIONS24a.ForAllWells:Submitthis formwithin30daysofcompletionofwellconstructiontothefollowing:DivisionofWaterResources,InformationProcessingUnit,1617MailServiceCenter,Raleigh,NC27699-161724b.ForInjectionWellsONLY:Inadditiontosendingtheformtotheaddressin 24aabove,alsosubmitacopyofthisformwithin30daysofcompletion ofwellconstructiontothefollowing:DivisionofWaterResources,UndergroundInjectionControlProgram,1636MailServiceCenter,Raleigh,NC27699-1636 24c.ForWaterSupply&InjectionWells: Also submit one copyof this form within30days ofcompletionofwellconstructiontothecountyhealthdepartmentofthecountywhereconstructed. ForInternalUseONLY: _______________ Matt Steele 4548A Geological Resources, Inc. WM0301254 01/30/2023 MW-3 Silver Express 00-0-0000030632 5115 North Tryon Street, Charlotte 28213 Mecklenburg 08911104 35.25854594 80.78058897 1 30 26.23 6" Solid Stem Auger 26.23 30 silty CLAY 0 15 2 Sch 40 PVC 15 30 2 0.010 Sch 40 PVC 0 12 grout pour 12 14 bentonite pour 14 30 #2 Sand Pour 0.0 0.5 asphalt 0.5 7.0 clayey SILT 7.0 18.0 silty CLAY 18.0 25.0 silty CLAY 25.0 30.0 silty CLAY 01/30/2023 Site Name:Date: Project Number:Log Completed By: Company:Drill Type: Driller:License Number: Boring ID:Depth: Diameter:Completion Details: PID Lab From To (ppm)Sample Description Color Moisture Odor Depth (ft)Lithology SITE INFORMATION DRILLING INFORMATION BORING INFORMATION Photo 1: Preclearing Photo 2: Completion Silver Express 5413 01/30/2023 Kyle Perry Geological Resources, Inc. Matt Steele Solid Stem Auger 4548A MW-4 6" 30' Well installed at completion 0.0 0.5 asphalt 0.5 9.0 clayey SILT tan/red Dry None 9.0 20.0 clayey SILT red Dry None 20.0 26.0 clayey SILT red Moist Present 26.0 30.0 sandy SILT tan/red Wet Present Site Name:Date: Project Number:Log Completed By: Company:Drill Type: Driller:License Number: Boring ID:Top of Casing: Diameter:Depth to Water: From (ft)To (ft)From (ft)To (ft)Diameter (in) From (ft)To (ft)From (ft)To (ft)Diameter (in) From (ft)To (ft)From (ft)To (ft)Diameter (in) Sand Bentonite Grout Screen Casing SITE INFORMATION DRILLING INFORMATION WELL CONSTRUCTION INFORMATION DIAGRAM -MONITORING WELL Sand Bentonite Grout Screen Inner Casing Outer Casing Silver Express 5413 01/30/2023 Kyle Perry Geological Resources, Inc. Matt Steele Solid Stem Auger 4548A MW-4 6"25.95 14 30 12 14 0 12 0 0 0 0 15 2 15 30 2 12 14 30 15 30 WELLCONSTRUCTIONRECORD Thisformcanbeusedforsingleormultiplewells FormGW-1 NorthCarolinaDepartmentofEnvironmentandNaturalResources–DivisionofWaterResources RevisedAugust2013 1.WellContractorInformation: WellContractorName NCWellContractorCertificationNumber CompanyName2.WellConstructionPermit#: List all applicable well permits (i.e. County, State, Variance, Injection, etc.) 3.WellUse(checkwelluse):WaterSupplyWell:□Agricultural□Municipal/Public□Geothermal(Heating/CoolingSupply)□ResidentialWaterSupply(single) □Industrial/Commercial□ResidentialWaterSupply(shared)□Irrigation Non-WaterSupplyWell:□Monitoring□Recovery InjectionWell:□AquiferRecharge□GroundwaterRemediation □AquiferStorageandRecovery□SalinityBarrier□AquiferTest□StormwaterDrainage □ExperimentalTechnology□SubsidenceControl □Geothermal(ClosedLoop)□Tracer□Geothermal(Heating/CoolingReturn)□Other(explainunder#21Remarks) 4.DateWell(s)Completed:____________WellID#______________________5a.WellLocation: Facility/OwnerNameFacilityID#(ifapplicable) PhysicalAddress,City,andZip CountyParcelIdentificationNo.(PIN)5b.LatitudeandLongitudeindegrees/minutes/secondsordecimaldegrees:(ifwellfield,onelat/longissufficient)N W 6.Is(are)thewell(s):□Permanentor□Temporary 7.Isthisarepairtoanexistingwell:□Yesor□No If this is a repair, fill out known well construction information and explain the nature of the repair under #21 remarks section or on the back of this form. 8.Numberofwellsconstructed: For multiple injection or non-water supply wells ONLY with the same construction, you can submit one form. 9.Totalwelldepthbelowlandsurface: (ft.) For multiple wells list all depths if different (example- 3@200’ and 2@100′) 10.Staticwaterlevelbelowtopofcasing:(ft.) If water level is above casing, use “+” 11.Boreholediameter:(in.)12.Wellconstructionmethod: (i.e.auger,rotary,cable,directpush,etc.)FORWATERSUPPLYWELLSONLY:13a.Yield(gpm) Methodoftest:13b.Disinfectiontype:Amount: 14.WATERZONESFROMTODESCRIPTION ft.ft. ft.ft. 15.OUTERCASING(formulti-casedwells)ORLINER(ifapplicable)FROMTODIAMETERTHICKNESSMATERIAL ft.ft.in. 16.INNERCASINGORTUBING(geothermalclosed-loop) FROMTODIAMETERTHICKNESSMATERIAL ft.ft.in. ft.ft.in. 17.SCREENFROMTODIAMETERSLOTSIZETHICKNESSMATERIAL ft.ft.in. ft.ft.in. 18.GROUT FROMTOMATERIALEMPLACEMENTMETHOD&AMOUNT ft.ft. ft.ft. ft.ft. 19.SAND/GRAVELPACK(ifapplicable) FROMTOMATERIALEMPLACEMENTMETHOD ft.ft. ft.ft. 20.DRILLINGLOG(attachadditionalsheetsifnecessary)FROMTODESCRIPTION(color,hardness,soil/rocktype,grainsize,etc.) ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. ft.ft. 21.REMARKS 22.Certification: SignatureofCertifiedWellContractorDate By signing this form, I hereby certify that the well(s) was (were) constructed in accordance with 15A NCAC 02C .0100 or 15A NCAC 02C .0200 Well Construction Standards and that a copy of this record has been provided to the well owner. 23.Sitediagramoradditionalwelldetails:Youmayusethebackofthispagetoprovideadditionalwellsitedetailsorwellconstructiondetails.Youmayalsoattachadditionalpagesifnecessary.SUBMITTALINSTUCTIONS24a.ForAllWells:Submitthis formwithin30daysofcompletionofwellconstructiontothefollowing:DivisionofWaterResources,InformationProcessingUnit,1617MailServiceCenter,Raleigh,NC27699-161724b.ForInjectionWellsONLY:Inadditiontosendingtheformtotheaddressin 24aabove,alsosubmitacopyofthisformwithin30daysofcompletion ofwellconstructiontothefollowing:DivisionofWaterResources,UndergroundInjectionControlProgram,1636MailServiceCenter,Raleigh,NC27699-1636 24c.ForWaterSupply&InjectionWells: Also submit one copyof this form within30days ofcompletionofwellconstructiontothecountyhealthdepartmentofthecountywhereconstructed. ForInternalUseONLY: _______________ Matt Steele 4548A Geological Resources, Inc. WM0301254 01/30/2023 MW-4 Silver Express 00-0-0000030632 5115 North Tryon Street, Charlotte 28213 Mecklenburg 08911104 35.25865205 80.78049331 1 30 25.95 6" Solid Stem Auger 0 0 0 0 15 2 Sch 40 PVC 15 30 2 0.010 Sch 40 PVC 0 12 grout pour 12 14 bentonite pour 14 30 #2 Sand Pour 0.0 0.5 asphalt 0.5 9.0 clayey SILT 9.0 20.0 clayey SILT 20.0 26.0 clayey SILT 26.0 30.0 sandy SILT 01/30/2023 APPENDIX D State Correspondence June 8, 2022 Nisbet Oil Company 1818 Baxter Street Charlotte, North Carolina 28204 Attention: Christopher Whitaker Re: Notice of Regulatory Requirements 15A NCAC 2L .0405 Risk-based Assessment and Corrective Action for Petroleum Underground Storage Tanks Silver Express 5115 N Tryon St Charlotte, NC Incident Number: 48487 Mr. Whitaker: The Site Check Report received by the UST Section, Division of Waste Management, Mooresville Regional Office on May 16, 2022, confirms a release or discharge from a petroleum underground storage tank (UST) system at the above-referenced location. The report indicates that soil contamination exceeds or equals the 10 mg/kg total petroleum hydrocarbons (TPH) screening limit (or exceeds the lower of the residential or soil-to-groundwater maximum soil contaminant `concentrations (MSCCs) established in Title 15A NCAC 2L .0411) and/or that groundwater contamination exceeds the standards or interim standards established in Title 15A NCAC 2L.0202. Therefore, the responsible party must comply with the assessment and reporting requirements of Title 15A NCAC 2L .0405, which includes the preparation and submittal of a Limited Site Assessment (LSA) Report, in accordance with the rule and the most recent version of the Guidelines for Assessment and Corrective Action for UST Releases, within 120 days of discovery of the release. The Limited Site Assessment (LSA) report outline and requirements can be found online at: http://portal.ncdenr.org/web/wm/ust/guidance; the LSA investigation and report must follow these specifications. Because a release or discharge has been confirmed, a Licensed Geologist or a Professional Engineer, certified by the State of North Carolina, is required to prepare and certify all reports submitted to the Department in accordance with Title 15A NCAC 2L .0103(e), and 2L .0111(b). Please note that before you sell, transfer, or request a “No Further Action” determination for a property that has not been remediated to below “unrestricted use” standards, you must file a Notice of Residual Petroleum ("Notice") with the Register of Deeds in the county where the property is located (NCGS 143B-279.9 and 143B-279.11). 5413 Received JUN 08 2022 Failure to comply with the State's rules in the manner and time specified may result in the assessment of civil penalties and/or the use of other enforcement mechanisms. If you have any questions regarding trust fund eligibility or reimbursement from the Commercial or Noncommercial Leaking Petroleum Underground Storage Tank Cleanup Funds, please contact the UST Section Trust Fund Branch at (919) 707-8171. If you have any questions regarding the actions that must be taken or the rules mentioned in this letter, please contact me at the address or telephone number listed below. Sincerely, Daniel Bowser, PG Hydrogeologist UST Section, Division of Waste Management, NCDEQ Mooresville Regional Office (704) 235-2172 cc via email: Samuel McKay, PG, GRI Shawna Caldwell, LUESA- Mecklenburg County Health Department APPENDIX E Historical Soil Quality Data Sample ID Date Collected (mm/dd/yy) 50 100 SB-1B (3') 06/17/2020 <0.7 0.6 RAL (mg/kg) Contaminant of Concern Æ TPH-GROTPH-DRO Date: 06/23/20 5030/ 8015D 3550/ 8015C Sample IDDate Collected (mm/dd/yy)Sample Depth(ft-BGS)Gasoline-Range TPHDiesel-Range TPHBenzeneTolueneEthylbenzeneTotal Xylenes50 100 NE NE NE NE NE NE 0.0056 4.3 4.9 4.6 NE NE 18 1,200 1,560 3,129 SB-1B 06/17/20 3 <0.7 0.6 NR NR NR NR Notes: • Results reported in mg/kg (milligrams per kilograms) • ft-BGS: feet below ground surface. • RAL: Regulatory Action Level. • MCCs: Maximum Contaminant Concentrations (soils). • SCLs: Soil Cleanup Levels. • < : Less than the method detection limit specified in the laboratory report • Concentrations in bold face type indicate the soil-to-water MCCs were below the reported concentrations. • Concentrations in italic type indicate the residential SCLs were below the reported concentrations. • NE: Not Established • NR: Not Requested. RAL (mg/kg) Soil to Water MCC (mg/kg) Residential SCLs (mg/kg) Analytical Method EPA Method 8260B Facility ID #: 0-030632 TABLE 3 SUMMARY OF SOIL SAMPLE ANALYTICAL RESULTS SILVER EXPRESS (INCIDENT NO. N/A) Page 1 of 1 APPENDIX F Laboratory Analytical Reports 10/24/22 Technical Report for GRI (Geological Resources Inc.) Silver Express; 5115A N Tryon St, Charlotte, NC 5413 SGS Job Number: FA99528 Sampling Date: 10/04/22 Report to: GRI 3502 Hayes Rd Monroe, NC 28110 smckay@geologicalresourcesinc.com; carriekennedy@geologicalresourcesinc.com; jjr@geologicalresourcesinc.com; sbresolve@gmail.com ATTN: Sam McKay Total number of pages in report: Certifications: FL(E83510), LA(03051), KS(E-10327), NC(573), NJ(FL002), NY(12022), SC(96038001) DoD ELAP(ANAB L2229), AZ(AZ0806), CA(2937), TX(T104704404), PA(68-03573), VA(460177), AL, AK, AR, CT, IA, KY, MA, MI. MS, ND, NH, NV, OK, OR, IL, UT, VT, WA, WI, WV This report shall not be reproduced, except in its entirety, without the written approval of SGS. Test results relate only to samples analyzed. SGS North America Inc. • 4405 Vineland Road • Suite C-15 • Orlando, FL 32811 • tel: 407-425-6700 • fax: 407-425-0707 Test results contained within this data package meet the requirements of the National Environmental Laboratory Accreditation Program and/or state specific certification programs as applicable. Client Service contact: Muna Mohammed 407-425-6700 Norm Farmer Technical Director Orlando, FL 10/24/22 e-Hardcopy 2.0 Automated Report 32 SGS is the sole authority for authorizing edits or modifications to this document. Unauthorized modification of this report is strictly prohibited. Review standard terms at: http://www.sgs.com/en/terms-and-conditions The results set forth herein are provided by SGS North America Inc. Please share your ideas about how we can serve you better at: EHS.US.CustomerCare@sgs.com 1 of 32 FA99528 Table of Contents -1- Sections: Section 1: Sample Summary ...................................................................................................3 Section 2: Summary of Hits ....................................................................................................4 Section 3: Sample Results ........................................................................................................5 3.1: FA99528-1: MW-1 ........................................................................................................6 3.2: FA99528-2: TRIP BLANK ...........................................................................................10 Section 4: Misc. Forms ............................................................................................................12 4.1: Chain of Custody ...........................................................................................................13 Section 5: MS Volatiles - QC Data Summaries .....................................................................16 5.1: Method Blank Summary ................................................................................................17 5.2: Blank Spike Summary ...................................................................................................21 5.3: Matrix Spike/Matrix Spike Duplicate Summary ...........................................................25 Section 6: GC Volatiles - QC Data (SGS Scott, LA) .............................................................29 6.1: Method Blank Summary ................................................................................................30 6.2: Blank Spike/Blank Spike Duplicate Summary ..............................................................31 6.3: Duplicate Summary .......................................................................................................32 1234562 of 32 FA99528 SGS North America Inc. Sample Summary GRI (Geological Resources Inc.) Job No:FA99528 Silver Express; 5115A N Tryon St, Charlotte, NC Project No: 5413 Sample Collected Matrix Client Number Date Time By Received Code Type Sample ID This report contains results reported as ND = Not detected. The following applies: Organics ND = Not detected above the MDL FA99528-1 10/04/22 14:22 JA 10/06/22 AQ Ground Water MW-1 FA99528-2 10/04/22 00:00 JA 10/06/22 AQ Trip Blank Water TRIP BLANK 3 of 32 FA995281 Summary of Hits Page 1 of 1 Job Number:FA99528 Account:GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Collected:10/04/22 Lab Sample ID Client Sample ID Result/ Analyte Qual RL MDL Units Method FA99528-1 MW-1 Benzene 3980 50 13 ug/l SM 6200B n-Butylbenzene 354 50 13 ug/l SM 6200B sec-Butylbenzene 218 50 13 ug/l SM 6200B Di-Isopropyl Ether 81.8 50 13 ug/l SM 6200B Ethylbenzene a 4810 500 130 ug/l SM 6200B Isopropylbenzene 582 50 13 ug/l SM 6200B Methyl Tert Butyl Ether a 5960 500 130 ug/l SM 6200B Naphthalene 1670 50 13 ug/l SM 6200B n-Propylbenzene 2200 50 13 ug/l SM 6200B Tert-Amyl Methyl Ether 1070 100 20 ug/l SM 6200B Toluene 40900 E 50 13 ug/l SM 6200B 1,2,4-Trimethylbenzene a 4820 500 130 ug/l SM 6200B 1,3,5-Trimethylbenzene 3240 50 13 ug/l SM 6200B m,p-Xylene a 16100 1000 130 ug/l SM 6200B o-Xylene a 8680 500 130 ug/l SM 6200B Benzene b 3880 1000 28 ug/l MADEP VPH REV 2.1 Ethylbenzene b 6500 1000 35 ug/l MADEP VPH REV 2.1 Methyl Tert Butyl Ether b 8850 1000 27 ug/l MADEP VPH REV 2.1 Naphthalene b 1230 1000 82 ug/l MADEP VPH REV 2.1 Toluene b 45000 1000 30 ug/l MADEP VPH REV 2.1 m,p-Xylene b 21700 2000 80 ug/l MADEP VPH REV 2.1 o-Xylene b 10600 1000 37 ug/l MADEP VPH REV 2.1 C5- C8 Aliphatics (Unadj.) b 133000 20000 10000 ug/l MADEP VPH REV 2.1 C9- C12 Aliphatics (Unadj.) b 128000 20000 10000 ug/l MADEP VPH REV 2.1 C9- C10 Aromatics (Unadj.) b 25300 20000 4000 ug/l MADEP VPH REV 2.1 C5- C8 Aliphatics b 75000 20000 10000 ug/l MADEP VPH REV 2.1 C9- C12 Aliphatics b 63700 20000 10000 ug/l MADEP VPH REV 2.1 C9- C10 Aromatics b 25300 20000 4000 ug/l MADEP VPH REV 2.1 FA99528-2 TRIP BLANK Methyl Chloride c 0.66 B 0.50 0.20 ug/l SM 6200B (a) Sample re-analyzed beyond hold time. (b) Analysis performed at SGS Scott, LA. (c) Suspected instrument contaminant. 4 of 32 FA995282 SGS North America Inc. Sample Results Report of Analysis Orlando, FL Section 3 5 of 32 FA995283 SGS North America Inc. Report of Analysis Page 1 of 3 Client Sample ID:MW-1 Lab Sample ID:FA99528-1 Date Sampled:10/04/22 Matrix:AQ - Ground Water Date Received:10/06/22 Method:SM 6200B Percent Solids:n/a Project:Silver Express; 5115A N Tryon St, Charlotte, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 A0234867.D 100 10/11/22 20:14 SS n/a n/a VA3255 Run #2 a A0235001.D 1000 10/19/22 21:43 SS n/a n/a VA3261 Purge Volume Run #1 10.0 ml Run #2 10.0 ml VOA 6200B List CAS No.Compound Result RL MDL Units Q 71-43-2 Benzene 3980 50 13 ug/l 108-86-1 Bromobenzene ND 50 13 ug/l 74-97-5 Bromochloromethane ND 50 13 ug/l 75-27-4 Bromodichloromethane ND 50 13 ug/l 75-25-2 Bromoform ND 50 13 ug/l 104-51-8 n-Butylbenzene 354 50 13 ug/l 135-98-8 sec-Butylbenzene 218 50 13 ug/l 98-06-6 tert-Butylbenzene ND 50 13 ug/l 56-23-5 Carbon Tetrachloride ND 50 13 ug/l 108-90-7 Chlorobenzene ND 50 13 ug/l 75-00-3 Chloroethane ND 50 20 ug/l 67-66-3 Chloroform ND 50 13 ug/l 95-49-8 o-Chlorotoluene ND 50 13 ug/l 106-43-4 p-Chlorotoluene ND 50 13 ug/l 124-48-1 Dibromochloromethane ND 50 13 ug/l 96-12-8 1,2-Dibromo-3-chloropropane ND 50 25 ug/l 106-93-4 1,2-Dibromoethane ND 50 13 ug/l 75-71-8 Dichlorodifluoromethane ND 50 20 ug/l 95-50-1 1,2-Dichlorobenzene ND 50 13 ug/l 541-73-1 1,3-Dichlorobenzene ND 50 13 ug/l 106-46-7 1,4-Dichlorobenzene ND 50 13 ug/l 75-34-3 1,1-Dichloroethane ND 50 13 ug/l 107-06-2 1,2-Dichloroethane ND 50 13 ug/l 75-35-4 1,1-Dichloroethylene ND 50 13 ug/l 156-59-2 cis-1,2-Dichloroethylene ND 50 13 ug/l 156-60-5 trans-1,2-Dichloroethylene ND 50 13 ug/l 78-87-5 1,2-Dichloropropane ND 50 13 ug/l 142-28-9 1,3-Dichloropropane ND 50 13 ug/l 594-20-7 2,2-Dichloropropane ND 50 13 ug/l 563-58-6 1,1-Dichloropropene ND 50 13 ug/l 10061-01-5 cis-1,3-Dichloropropene ND 50 13 ug/l 10061-02-6 trans-1,3-Dichloropropene ND 50 13 ug/l ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 6 of 32 FA9952833.1 SGS North America Inc. Report of Analysis Page 2 of 3 Client Sample ID:MW-1 Lab Sample ID:FA99528-1 Date Sampled:10/04/22 Matrix:AQ - Ground Water Date Received:10/06/22 Method:SM 6200B Percent Solids:n/a Project:Silver Express; 5115A N Tryon St, Charlotte, NC VOA 6200B List CAS No.Compound Result RL MDL Units Q 108-20-3 Di-Isopropyl Ether 81.8 50 13 ug/l 64-17-5 Ethyl Alcohol b ND 10000 6500 ug/l 100-41-4 Ethylbenzene 4810 c 500 130 ug/l 637-92-3 Ethyl Tert Butyl Ether ND 50 13 ug/l 87-68-3 Hexachlorobutadiene ND 50 13 ug/l 98-82-8 Isopropylbenzene 582 50 13 ug/l 99-87-6 p-Isopropyltoluene ND 50 13 ug/l 74-83-9 Methyl Bromide ND 50 20 ug/l 74-87-3 Methyl Chloride 0.00 50 20 ug/l B 74-95-3 Methylene Bromide ND 50 13 ug/l 75-09-2 Methylene Chloride d ND 200 100 ug/l 1634-04-4 Methyl Tert Butyl Ether 5960 c 500 130 ug/l 91-20-3 Naphthalene 1670 50 13 ug/l 103-65-1 n-Propylbenzene 2200 50 13 ug/l 100-42-5 Styrene ND 50 13 ug/l 75-85-4 Tert-Amyl Alcohol e ND 1000 200 ug/l 994-05-8 Tert-Amyl Methyl Ether 1070 100 20 ug/l 75-65-0 Tert-Butyl Alcohol ND 1000 200 ug/l 762-75-4 Tert-Butyl Formate ND 1000 200 ug/l 630-20-6 1,1,1,2-Tetrachloroethane ND 50 13 ug/l 79-34-5 1,1,2,2-Tetrachloroethane ND 50 13 ug/l 127-18-4 Tetrachloroethylene ND 50 13 ug/l 108-88-3 Toluene 40900 50 13 ug/l E 87-61-6 1,2,3-Trichlorobenzene ND 50 13 ug/l 120-82-1 1,2,4-Trichlorobenzene ND 50 13 ug/l 71-55-6 1,1,1-Trichloroethane ND 50 13 ug/l 79-00-5 1,1,2-Trichloroethane ND 50 13 ug/l 79-01-6 Trichloroethylene ND 50 13 ug/l 75-69-4 Trichlorofluoromethane ND 50 20 ug/l 96-18-4 1,2,3-Trichloropropane ND 50 13 ug/l 95-63-6 1,2,4-Trimethylbenzene 4820 c 500 130 ug/l 108-67-8 1,3,5-Trimethylbenzene 3240 50 13 ug/l 75-01-4 Vinyl Chloride ND 50 13 ug/l m,p-Xylene 16100 c 1000 130 ug/l 95-47-6 o-Xylene 8680 c 500 130 ug/l CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 1868-53-7 Dibromofluoromethane 92%95%70-130% 17060-07-0 1,2-Dichloroethane-D4 95%96%70-130% ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 7 of 32 FA9952833.1 SGS North America Inc. Report of Analysis Page 3 of 3 Client Sample ID:MW-1 Lab Sample ID:FA99528-1 Date Sampled:10/04/22 Matrix:AQ - Ground Water Date Received:10/06/22 Method:SM 6200B Percent Solids:n/a Project:Silver Express; 5115A N Tryon St, Charlotte, NC VOA 6200B List CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 2037-26-5 Toluene-D8 96%102%70-130% 460-00-4 4-Bromofluorobenzene 107%106%70-130% (a) Sample re-analyzed beyond hold time. (b) Associated CCV and ECC outside control limits. (c) Result is from Run# 2 (d) Associated BS recovery outside control limits low. (e) Associated CCV outside control limits low. ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 8 of 32 FA9952833.1 SGS North America Inc. Report of Analysis Page 1 of 1 Client Sample ID:MW-1 Lab Sample ID:FA99528-1 Date Sampled:10/04/22 Matrix:AQ - Ground Water Date Received:10/06/22 Method:MADEP VPH REV 2.1 Percent Solids:n/a Project:Silver Express; 5115A N Tryon St, Charlotte, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 a LE038674.D 200 10/13/22 18:38 ALA n/a n/a L:GLE2292 Run #2 Purge Volume Run #1 5.0 ml Run #2 MADEP VPH List CAS No.Compound Result RL MDL Units Q 71-43-2 Benzene 3880 1000 28 ug/l 100-41-4 Ethylbenzene 6500 1000 35 ug/l 1634-04-4 Methyl Tert Butyl Ether 8850 1000 27 ug/l 91-20-3 Naphthalene 1230 1000 82 ug/l 108-88-3 Toluene 45000 1000 30 ug/l m,p-Xylene 21700 2000 80 ug/l 95-47-6 o-Xylene 10600 1000 37 ug/l C5- C8 Aliphatics (Unadj.)133000 20000 10000 ug/l C9- C12 Aliphatics (Unadj.)128000 20000 10000 ug/l C9- C10 Aromatics (Unadj.)25300 20000 4000 ug/l C5- C8 Aliphatics 75000 20000 10000 ug/l C9- C12 Aliphatics 63700 20000 10000 ug/l C9- C10 Aromatics 25300 20000 4000 ug/l CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 615-59-8 2,5-Dibromotoluene 101%70-130% 615-59-8 2,5-Dibromotoluene 90%70-130% (a) Analysis performed at SGS Scott, LA. ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 9 of 32 FA9952833.1 SGS North America Inc. Report of Analysis Page 1 of 2 Client Sample ID:TRIP BLANK Lab Sample ID:FA99528-2 Date Sampled:10/04/22 Matrix:AQ - Trip Blank Water Date Received:10/06/22 Method:SM 6200B Percent Solids:n/a Project:Silver Express; 5115A N Tryon St, Charlotte, NC File ID DF Analyzed By Prep Date Prep Batch Analytical Batch Run #1 A0234847.D 1 10/11/22 12:37 SS n/a n/a VA3255 Run #2 Purge Volume Run #1 10.0 ml Run #2 VOA 6200B List CAS No.Compound Result RL MDL Units Q 71-43-2 Benzene ND 0.50 0.13 ug/l 108-86-1 Bromobenzene ND 0.50 0.13 ug/l 74-97-5 Bromochloromethane ND 0.50 0.13 ug/l 75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l 75-25-2 Bromoform ND 0.50 0.13 ug/l 104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l 135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l 98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l 56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l 108-90-7 Chlorobenzene ND 0.50 0.13 ug/l 75-00-3 Chloroethane ND 0.50 0.20 ug/l 67-66-3 Chloroform ND 0.50 0.13 ug/l 95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l 106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l 124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l 96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l 106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l 75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l 95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l 541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l 106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l 75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l 107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l 75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l 156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l 156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l 78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l 142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l 594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l 563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l 10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l 10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 10 of 32 FA9952833.2 SGS North America Inc. Report of Analysis Page 2 of 2 Client Sample ID:TRIP BLANK Lab Sample ID:FA99528-2 Date Sampled:10/04/22 Matrix:AQ - Trip Blank Water Date Received:10/06/22 Method:SM 6200B Percent Solids:n/a Project:Silver Express; 5115A N Tryon St, Charlotte, NC VOA 6200B List CAS No.Compound Result RL MDL Units Q 108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l 100-41-4 Ethylbenzene ND 0.50 0.13 ug/l 87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l 98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l 99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l 74-83-9 Methyl Bromide ND 0.50 0.20 ug/l 74-87-3 Methyl Chloride a 0.66 0.50 0.20 ug/l B 74-95-3 Methylene Bromide ND 0.50 0.13 ug/l 75-09-2 Methylene Chloride b ND 2.0 1.0 ug/l 1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l 91-20-3 Naphthalene ND 0.50 0.13 ug/l 103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l 100-42-5 Styrene ND 0.50 0.13 ug/l 630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l 79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l 127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l 108-88-3 Toluene ND 0.50 0.13 ug/l 87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l 120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l 71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l 79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l 79-01-6 Trichloroethylene ND 0.50 0.13 ug/l 75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l 96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l 95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l 108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l 75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l m,p-Xylene ND 1.0 0.13 ug/l 95-47-6 o-Xylene ND 0.50 0.13 ug/l CAS No.Surrogate Recoveries Run# 1 Run# 2 Limits 1868-53-7 Dibromofluoromethane 101%70-130% 17060-07-0 1,2-Dichloroethane-D4 104%70-130% 2037-26-5 Toluene-D8 105%70-130% 460-00-4 4-Bromofluorobenzene 103%70-130% (a) Suspected instrument contaminant. (b) Associated BS recovery outside control limits low. ND = Not detected MDL = Method Detection Limit J = Indicates an estimated value RL = Reporting Limit B = Indicates analyte found in associated method blank E = Indicates value exceeds calibration range N = Indicates presumptive evidence of a compound 11 of 32 FA9952833.2 SGS North America Inc. Misc. Forms Custody Documents and Other Forms Includes the following where applicable: • Chain of Custody Orlando, FL Section 4 12 of 32 FA995284 FA99528: Chain of Custody Page 1 of 3 13 of 32 FA9952844.1 SGS Sample Receipt Summary Job Number:FA99528 Client:GRI Date / Time Received:10/6/2022 10:00:00 AM Delivery Method:FX Project:SILVER EXPRESS Airbill #'s:199063798629 Cooler Information 1. Custody Seals Present 2. Custody Seals Intact 4. Cooler temp verification 3. Temp criteria achieved 5. Cooler media IR Gun Ice (Bag) Trip Blank Information 1. Trip Blank present / cooler 2. Trip Blank listed on COC 2. Samples preserved properly Sample Information 1. Sample labels present on bottles 5. Sample recvd within HT 4. Condition of sample 3. Sufficient volume/containers recvd for analysis: Intact Comments ONE REQUESTED ANALYSIS IS "VPH", BUT VIALS RECEIVED LABLED FOR "8011" FOR SAMPLE -1. Cooler Temps (Raw Measured) °C: Cooler Temps (Corrected) °C: Cooler 1: (3.0); Cooler 1: (3.6); 3. Type Of TB Received W or S N/A 6. Dates/Times/IDs on COC match Sample Label 7. VOCs have headspace 8. Bottles received for unspecified tests 9. Compositing instructions clear 10. Voa Soil Kits/Jars received past 48hrs? 11. % Solids Jar received? Misc. Information 25-Gram 5-GramNumber of Encores:Number of 5035 Field Kits:Number of Lab Filtered Metals: Test Strip Lot #s:pH 0-3 230315 pH 10-12 219813A Other: (Specify) Y or N N/A Y or N Therm ID:; IR 1; Therm CF:0; 0.6; # of Coolers:1 Y or N N/A 12. Residual Chlorine Present? Residual Chlorine Test Strip Lot #: Technician:Reviewer:SAMUELM Date:Date: 10/6/2022 10:00:00 A SM001Rev. Date 05/24/17 FA99528: Chain of Custody Page 2 of 3 14 of 32 FA9952844.1 Per client COC is correct. Analyze sample MW-1 for 6200 and VPH.Response: Response Date:10/10/22CSR:Muna Mohammed SM001Rev. Date 05/24/17 FA99528: Chain of Custody Page 3 of 3 15 of 32 FA9952844.1 SGS North America Inc. MS Volatiles QC Data Summaries Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries Orlando, FL Section 5 16 of 32 FA995285 Method Blank Summary Page 1 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA3255-MB A0234844.D 1 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 CAS No.Compound Result RL MDL Units Q 71-43-2 Benzene ND 0.50 0.13 ug/l 108-86-1 Bromobenzene ND 0.50 0.13 ug/l 74-97-5 Bromochloromethane ND 0.50 0.13 ug/l 75-27-4 Bromodichloromethane ND 0.50 0.13 ug/l 75-25-2 Bromoform ND 0.50 0.13 ug/l 104-51-8 n-Butylbenzene ND 0.50 0.13 ug/l 135-98-8 sec-Butylbenzene ND 0.50 0.13 ug/l 98-06-6 tert-Butylbenzene ND 0.50 0.13 ug/l 56-23-5 Carbon Tetrachloride ND 0.50 0.13 ug/l 108-90-7 Chlorobenzene ND 0.50 0.13 ug/l 75-00-3 Chloroethane ND 0.50 0.20 ug/l 67-66-3 Chloroform ND 0.50 0.13 ug/l 95-49-8 o-Chlorotoluene ND 0.50 0.13 ug/l 106-43-4 p-Chlorotoluene ND 0.50 0.13 ug/l 124-48-1 Dibromochloromethane ND 0.50 0.13 ug/l 96-12-8 1,2-Dibromo-3-chloropropane ND 0.50 0.25 ug/l 106-93-4 1,2-Dibromoethane ND 0.50 0.13 ug/l 75-71-8 Dichlorodifluoromethane ND 0.50 0.20 ug/l 95-50-1 1,2-Dichlorobenzene ND 0.50 0.13 ug/l 541-73-1 1,3-Dichlorobenzene ND 0.50 0.13 ug/l 106-46-7 1,4-Dichlorobenzene ND 0.50 0.13 ug/l 75-34-3 1,1-Dichloroethane ND 0.50 0.13 ug/l 107-06-2 1,2-Dichloroethane ND 0.50 0.13 ug/l 75-35-4 1,1-Dichloroethylene ND 0.50 0.13 ug/l 156-59-2 cis-1,2-Dichloroethylene ND 0.50 0.13 ug/l 156-60-5 trans-1,2-Dichloroethylene ND 0.50 0.13 ug/l 78-87-5 1,2-Dichloropropane ND 0.50 0.13 ug/l 142-28-9 1,3-Dichloropropane ND 0.50 0.13 ug/l 594-20-7 2,2-Dichloropropane ND 0.50 0.13 ug/l 563-58-6 1,1-Dichloropropene ND 0.50 0.13 ug/l 10061-01-5 cis-1,3-Dichloropropene ND 0.50 0.13 ug/l 10061-02-6 trans-1,3-Dichloropropene ND 0.50 0.13 ug/l 108-20-3 Di-Isopropyl Ether ND 0.50 0.13 ug/l 64-17-5 Ethyl Alcohol ND 100 65 ug/l 100-41-4 Ethylbenzene ND 0.50 0.13 ug/l 637-92-3 Ethyl Tert Butyl Ether ND 0.50 0.13 ug/l 17 of 32 FA9952855.1.1 Method Blank Summary Page 2 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA3255-MB A0234844.D 1 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 CAS No.Compound Result RL MDL Units Q 87-68-3 Hexachlorobutadiene ND 0.50 0.13 ug/l 98-82-8 Isopropylbenzene ND 0.50 0.13 ug/l 99-87-6 p-Isopropyltoluene ND 0.50 0.13 ug/l 74-83-9 Methyl Bromide ND 0.50 0.20 ug/l 74-87-3 Methyl Chloride 0.63 0.50 0.20 ug/l 74-95-3 Methylene Bromide ND 0.50 0.13 ug/l 75-09-2 Methylene Chloride ND 2.0 1.0 ug/l 1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l 91-20-3 Naphthalene ND 0.50 0.13 ug/l 103-65-1 n-Propylbenzene ND 0.50 0.13 ug/l 100-42-5 Styrene ND 0.50 0.13 ug/l 75-85-4 Tert-Amyl Alcohol ND 10 2.0 ug/l 994-05-8 Tert-Amyl Methyl Ether ND 1.0 0.20 ug/l 75-65-0 Tert-Butyl Alcohol 27.1 10 2.0 ug/l 762-75-4 Tert-Butyl Formate ND 10 2.0 ug/l 630-20-6 1,1,1,2-Tetrachloroethane ND 0.50 0.13 ug/l 79-34-5 1,1,2,2-Tetrachloroethane ND 0.50 0.13 ug/l 127-18-4 Tetrachloroethylene ND 0.50 0.13 ug/l 108-88-3 Toluene ND 0.50 0.13 ug/l 87-61-6 1,2,3-Trichlorobenzene ND 0.50 0.13 ug/l 120-82-1 1,2,4-Trichlorobenzene ND 0.50 0.13 ug/l 71-55-6 1,1,1-Trichloroethane ND 0.50 0.13 ug/l 79-00-5 1,1,2-Trichloroethane ND 0.50 0.13 ug/l 79-01-6 Trichloroethylene ND 0.50 0.13 ug/l 75-69-4 Trichlorofluoromethane ND 0.50 0.20 ug/l 96-18-4 1,2,3-Trichloropropane ND 0.50 0.13 ug/l 95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l 108-67-8 1,3,5-Trimethylbenzene ND 0.50 0.13 ug/l 75-01-4 Vinyl Chloride ND 0.50 0.13 ug/l m,p-Xylene ND 1.0 0.13 ug/l 95-47-6 o-Xylene ND 0.50 0.13 ug/l CAS No.Surrogate Recoveries Limits 1868-53-7 Dibromofluoromethane 100%70-130% 18 of 32 FA9952855.1.1 Method Blank Summary Page 3 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA3255-MB A0234844.D 1 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 CAS No.Surrogate Recoveries Limits 17060-07-0 1,2-Dichloroethane-D4 102%70-130% 2037-26-5 Toluene-D8 105%70-130% 460-00-4 4-Bromofluorobenzene 107%70-130% 19 of 32 FA9952855.1.1 Method Blank Summary Page 1 of 1 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA3261-MB A0234979.D 1 10/19/22 SS n/a n/a VA3261 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1 CAS No.Compound Result RL MDL Units Q 100-41-4 Ethylbenzene ND 0.50 0.13 ug/l 1634-04-4 Methyl Tert Butyl Ether ND 0.50 0.13 ug/l 95-63-6 1,2,4-Trimethylbenzene ND 0.50 0.13 ug/l m,p-Xylene ND 1.0 0.13 ug/l 95-47-6 o-Xylene ND 0.50 0.13 ug/l CAS No.Surrogate Recoveries Limits 1868-53-7 Dibromofluoromethane 103%70-130% 17060-07-0 1,2-Dichloroethane-D4 105%70-130% 2037-26-5 Toluene-D8 104%70-130% 460-00-4 4-Bromofluorobenzene 103%70-130% 20 of 32 FA9952855.1.2 Blank Spike Summary Page 1 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA3255-BS A0234842.D 1 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 Spike BSP BSP CAS No.Compound ug/l ug/l %Limits 71-43-2 Benzene 10 8.6 86 70-130 108-86-1 Bromobenzene 10 8.4 84 70-130 74-97-5 Bromochloromethane 10 8.5 85 70-130 75-27-4 Bromodichloromethane 10 8.3 83 70-130 75-25-2 Bromoform 10 7.5 75 70-130 104-51-8 n-Butylbenzene 10 8.1 81 70-130 135-98-8 sec-Butylbenzene 10 9.0 90 70-130 98-06-6 tert-Butylbenzene 10 8.5 85 70-130 56-23-5 Carbon Tetrachloride 10 8.8 88 70-130 108-90-7 Chlorobenzene 10 8.7 87 70-130 75-00-3 Chloroethane 10 7.3 73 60-140 67-66-3 Chloroform 10 8.5 85 70-130 95-49-8 o-Chlorotoluene 10 8.4 84 70-130 106-43-4 p-Chlorotoluene 10 8.2 82 70-130 124-48-1 Dibromochloromethane 10 7.6 76 70-130 96-12-8 1,2-Dibromo-3-chloropropane 10 7.8 78 70-130 106-93-4 1,2-Dibromoethane 10 8.8 88 70-130 75-71-8 Dichlorodifluoromethane 10 6.3 63 60-140 95-50-1 1,2-Dichlorobenzene 10 8.8 88 70-130 541-73-1 1,3-Dichlorobenzene 10 9.0 90 70-130 106-46-7 1,4-Dichlorobenzene 10 8.5 85 70-130 75-34-3 1,1-Dichloroethane 10 8.9 89 70-130 107-06-2 1,2-Dichloroethane 10 8.2 82 70-130 75-35-4 1,1-Dichloroethylene 10 9.3 93 70-130 156-59-2 cis-1,2-Dichloroethylene 10 9.0 90 70-130 156-60-5 trans-1,2-Dichloroethylene 10 8.8 88 70-130 78-87-5 1,2-Dichloropropane 10 8.1 81 70-130 142-28-9 1,3-Dichloropropane 10 8.2 82 70-130 594-20-7 2,2-Dichloropropane 10 9.1 91 70-130 563-58-6 1,1-Dichloropropene 10 8.9 89 70-130 10061-01-5 cis-1,3-Dichloropropene 10 7.7 77 70-130 10061-02-6 trans-1,3-Dichloropropene 10 8.1 81 70-130 108-20-3 Di-Isopropyl Ether 10 8.1 81 70-130 64-17-5 Ethyl Alcohol 500 345 69*70-130 100-41-4 Ethylbenzene 10 8.7 87 70-130 637-92-3 Ethyl Tert Butyl Ether 10 6.8 68*70-130 * = Outside of Control Limits. 21 of 32 FA9952855.2.1 Blank Spike Summary Page 2 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA3255-BS A0234842.D 1 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 Spike BSP BSP CAS No.Compound ug/l ug/l %Limits 87-68-3 Hexachlorobutadiene 10 9.1 91 70-130 98-82-8 Isopropylbenzene 10 8.8 88 70-130 99-87-6 p-Isopropyltoluene 10 8.6 86 70-130 74-83-9 Methyl Bromide 10 7.4 74 60-140 74-87-3 Methyl Chloride 10 10.9 109 60-140 74-95-3 Methylene Bromide 10 8.3 83 70-130 75-09-2 Methylene Chloride 10 6.2 62*70-130 1634-04-4 Methyl Tert Butyl Ether 10 7.0 70 70-130 91-20-3 Naphthalene 10 9.6 96 70-130 103-65-1 n-Propylbenzene 10 8.5 85 70-130 100-42-5 Styrene 10 8.8 88 70-130 75-85-4 Tert-Amyl Alcohol 100 96.2 96 70-130 994-05-8 Tert-Amyl Methyl Ether 10 7.3 73 70-130 75-65-0 Tert-Butyl Alcohol 100 101 101 70-130 762-75-4 Tert-Butyl Formate 100 90.9 91 70-130 630-20-6 1,1,1,2-Tetrachloroethane 10 8.6 86 70-130 79-34-5 1,1,2,2-Tetrachloroethane 10 8.6 86 70-130 127-18-4 Tetrachloroethylene 10 9.1 91 70-130 108-88-3 Toluene 10 8.5 85 70-130 87-61-6 1,2,3-Trichlorobenzene 10 9.6 96 70-130 120-82-1 1,2,4-Trichlorobenzene 10 9.3 93 70-130 71-55-6 1,1,1-Trichloroethane 10 9.0 90 70-130 79-00-5 1,1,2-Trichloroethane 10 8.8 88 70-130 79-01-6 Trichloroethylene 10 8.7 87 70-130 75-69-4 Trichlorofluoromethane 10 8.2 82 60-140 96-18-4 1,2,3-Trichloropropane 10 7.8 78 70-130 95-63-6 1,2,4-Trimethylbenzene 10 8.4 84 70-130 108-67-8 1,3,5-Trimethylbenzene 10 8.2 82 70-130 75-01-4 Vinyl Chloride 10 7.8 78 60-140 m,p-Xylene 20 15.8 79 70-130 95-47-6 o-Xylene 10 8.3 83 70-130 CAS No.Surrogate Recoveries BSP Limits 1868-53-7 Dibromofluoromethane 98%70-130% * = Outside of Control Limits. 22 of 32 FA9952855.2.1 Blank Spike Summary Page 3 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA3255-BS A0234842.D 1 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 CAS No.Surrogate Recoveries BSP Limits 17060-07-0 1,2-Dichloroethane-D4 99%70-130% 2037-26-5 Toluene-D8 102%70-130% 460-00-4 4-Bromofluorobenzene 102%70-130% * = Outside of Control Limits. 23 of 32 FA9952855.2.1 Blank Spike Summary Page 1 of 1 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch VA3261-BS A0234977.D 1 10/19/22 SS n/a n/a VA3261 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1 Spike BSP BSP CAS No.Compound ug/l ug/l %Limits 100-41-4 Ethylbenzene 10 9.8 98 70-130 1634-04-4 Methyl Tert Butyl Ether 10 8.0 80 70-130 95-63-6 1,2,4-Trimethylbenzene 10 9.0 90 70-130 m,p-Xylene 20 17.6 88 70-130 95-47-6 o-Xylene 10 9.1 91 70-130 CAS No.Surrogate Recoveries BSP Limits 1868-53-7 Dibromofluoromethane 98%70-130% 17060-07-0 1,2-Dichloroethane-D4 101%70-130% 2037-26-5 Toluene-D8 99%70-130% 460-00-4 4-Bromofluorobenzene 102%70-130% * = Outside of Control Limits. 24 of 32 FA9952855.2.2 Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch FA99528-1MS A0234853.D 100 10/11/22 SS n/a n/a VA3255 FA99528-1MSD A0234854.D 100 10/11/22 SS n/a n/a VA3255 FA99528-1 A0234867.D 100 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 FA99528-1 Spike MS MS Spike MSD MSD Limits CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD 71-43-2 Benzene 3980 1000 5200 122 1000 4820 84 8 70-130/20 108-86-1 Bromobenzene ND 1000 894 89 1000 873 87 2 70-130/20 74-97-5 Bromochloromethane ND 1000 854 85 1000 853 85 0 70-130/20 75-27-4 Bromodichloromethane ND 1000 996 100 1000 942 94 6 70-130/20 75-25-2 Bromoform ND 1000 727 73 1000 736 74 1 70-130/20 104-51-8 n-Butylbenzene 354 1000 1080 73 1000 1030 68*5 70-130/20 135-98-8 sec-Butylbenzene 218 1000 1050 83 1000 1000 78 5 70-130/20 98-06-6 tert-Butylbenzene ND 1000 928 93 1000 877 88 6 70-130/20 56-23-5 Carbon Tetrachloride ND 1000 900 90 1000 897 90 0 70-130/20 108-90-7 Chlorobenzene ND 1000 1010 101 1000 982 98 3 70-130/20 75-00-3 Chloroethane ND 1000 961 96 1000 748 75 25*60-140/20 67-66-3 Chloroform ND 1000 943 94 1000 893 89 5 70-130/20 95-49-8 o-Chlorotoluene ND 1000 1230 123 1000 1150 115 7 70-130/20 106-43-4 p-Chlorotoluene ND 1000 847 85 1000 831 83 2 70-130/20 124-48-1 Dibromochloromethane ND 1000 795 80 1000 795 80 0 70-130/20 96-12-8 1,2-Dibromo-3-chloropropane ND 1000 912 91 1000 898 90 2 70-130/20 106-93-4 1,2-Dibromoethane ND 1000 828 83 1000 857 86 3 70-130/20 75-71-8 Dichlorodifluoromethane ND 1000 733 73 1000 642 64 13 60-140/20 95-50-1 1,2-Dichlorobenzene ND 1000 975 98 1000 958 96 2 70-130/20 541-73-1 1,3-Dichlorobenzene ND 1000 970 97 1000 962 96 1 70-130/20 106-46-7 1,4-Dichlorobenzene ND 1000 928 93 1000 909 91 2 70-130/20 75-34-3 1,1-Dichloroethane ND 1000 956 96 1000 910 91 5 70-130/20 107-06-2 1,2-Dichloroethane ND 1000 864 86 1000 830 83 4 70-130/20 75-35-4 1,1-Dichloroethylene ND 1000 921 92 1000 914 91 1 70-130/20 156-59-2 cis-1,2-Dichloroethylene ND 1000 877 88 1000 902 90 3 70-130/20 156-60-5 trans-1,2-Dichloroethylene ND 1000 900 90 1000 878 88 2 70-130/20 78-87-5 1,2-Dichloropropane ND 1000 923 92 1000 871 87 6 70-130/20 142-28-9 1,3-Dichloropropane ND 1000 785 79 1000 797 80 2 70-130/20 594-20-7 2,2-Dichloropropane ND 1000 864 86 1000 843 84 2 70-130/20 563-58-6 1,1-Dichloropropene ND 1000 926 93 1000 910 91 2 70-130/20 10061-01-5 cis-1,3-Dichloropropene ND 1000 836 84 1000 830 83 1 70-130/20 10061-02-6 trans-1,3-Dichloropropene ND 1000 814 81 1000 830 83 2 70-130/20 108-20-3 Di-Isopropyl Ether 81.8 1000 945 86 1000 919 84 3 70-130/20 64-17-5 Ethyl Alcohol ND 50000 24400 49*50000 33200 66*31*70-130/20 100-41-4 Ethylbenzene 8830 E 1000 9540 71 1000 8730 -10* a 9 70-130/20 637-92-3 Ethyl Tert Butyl Ether ND 1000 665 67*1000 722 72 8 70-130/20 * = Outside of Control Limits. 25 of 32 FA9952855.3.1 Matrix Spike/Matrix Spike Duplicate Summary Page 2 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch FA99528-1MS A0234853.D 100 10/11/22 SS n/a n/a VA3255 FA99528-1MSD A0234854.D 100 10/11/22 SS n/a n/a VA3255 FA99528-1 A0234867.D 100 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 FA99528-1 Spike MS MS Spike MSD MSD Limits CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD 87-68-3 Hexachlorobutadiene ND 1000 1070 107 1000 970 97 10 70-130/20 98-82-8 Isopropylbenzene 582 1000 1350 77 1000 1320 74 2 70-130/20 99-87-6 p-Isopropyltoluene ND 1000 963 96 1000 931 93 3 70-130/20 74-83-9 Methyl Bromide ND 1000 944 94 1000 711 71 28*60-140/20 74-87-3 Methyl Chloride 0.00 B 1000 1260 105 1000 862 66 38*60-140/20 74-95-3 Methylene Bromide ND 1000 854 85 1000 833 83 2 70-130/20 75-09-2 Methylene Chloride ND 1000 671 67*1000 640 64*5 70-130/20 1634-04-4 Methyl Tert Butyl Ether 6800 E 1000 8100 130 1000 8250 145* a 2 70-130/20 91-20-3 Naphthalene 1670 1000 2280 61*1000 2250 58*1 70-130/20 103-65-1 n-Propylbenzene 2200 1000 2640 44* a 1000 2480 28* a 6 70-130/20 100-42-5 Styrene ND 1000 900 90 1000 890 89 1 70-130/20 75-85-4 Tert-Amyl Alcohol ND 10000 10300 103 10000 14400 144*33*70-130/20 994-05-8 Tert-Amyl Methyl Ether 1070 1000 1910 84 1000 2100 103 9 70-130/20 75-65-0 Tert-Butyl Alcohol ND 10000 14100 141*10000 19700 197*33*70-130/20 762-75-4 Tert-Butyl Formate ND 10000 9060 91 10000 14900 149*49*70-130/20 630-20-6 1,1,1,2-Tetrachloroethane ND 1000 844 84 1000 815 82 3 70-130/20 79-34-5 1,1,2,2-Tetrachloroethane ND 1000 975 98 1000 938 94 4 70-130/20 127-18-4 Tetrachloroethylene ND 1000 888 89 1000 887 89 0 70-130/20 108-88-3 Toluene 40900 E 1000 43200 230* a 1000 40300 -60* a 7 70-130/20 87-61-6 1,2,3-Trichlorobenzene ND 1000 1030 103 1000 987 99 4 70-130/20 120-82-1 1,2,4-Trichlorobenzene ND 1000 1100 110 1000 1030 103 7 70-130/20 71-55-6 1,1,1-Trichloroethane ND 1000 902 90 1000 906 91 0 70-130/20 79-00-5 1,1,2-Trichloroethane ND 1000 916 92 1000 908 91 1 70-130/20 79-01-6 Trichloroethylene ND 1000 1000 100 1000 925 93 8 70-130/20 75-69-4 Trichlorofluoromethane ND 1000 1010 101 1000 814 81 21*60-140/20 96-18-4 1,2,3-Trichloropropane ND 1000 750 75 1000 723 72 4 70-130/20 95-63-6 1,2,4-Trimethylbenzene 12900 E 1000 11400 -150* a 1000 10600 -230* a 7 70-130/20 108-67-8 1,3,5-Trimethylbenzene 3240 1000 3370 13* a 1000 3190 -5* a 5 70-130/20 75-01-4 Vinyl Chloride ND 1000 925 93 1000 786 79 16 60-140/20 m,p-Xylene 25700 E 2000 26600 45* a 2000 24400 -65* a 9 70-130/20 95-47-6 o-Xylene 13500 E 1000 13900 40* a 1000 12800 -70* a 8 70-130/20 CAS No.Surrogate Recoveries MS MSD FA99528-1 Limits 1868-53-7 Dibromofluoromethane 95%95%92%70-130% * = Outside of Control Limits. 26 of 32 FA9952855.3.1 Matrix Spike/Matrix Spike Duplicate Summary Page 3 of 3 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch FA99528-1MS A0234853.D 100 10/11/22 SS n/a n/a VA3255 FA99528-1MSD A0234854.D 100 10/11/22 SS n/a n/a VA3255 FA99528-1 A0234867.D 100 10/11/22 SS n/a n/a VA3255 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1, FA99528-2 CAS No.Surrogate Recoveries MS MSD FA99528-1 Limits 17060-07-0 1,2-Dichloroethane-D4 100%100%95%70-130% 2037-26-5 Toluene-D8 95%96%96%70-130% 460-00-4 4-Bromofluorobenzene 101%103%107%70-130% (a) Outside control limits due to high level in sample relative to spike amount. * = Outside of Control Limits. 27 of 32 FA9952855.3.1 Matrix Spike/Matrix Spike Duplicate Summary Page 1 of 1 Job Number:FA99528 Account:GRINCC GRI (Geological Resources Inc.) Project:Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch FA99528-1MS A0234990.D 1000 10/19/22 SS n/a n/a VA3261 FA99528-1MSD A0234991.D 1000 10/19/22 SS n/a n/a VA3261 FA99528-1 a A0235001.D 1000 10/19/22 SS n/a n/a VA3261 The QC reported here applies to the following samples:Method: SM 6200B FA99528-1 FA99528-1 Spike MS MS Spike MSD MSD Limits CAS No.Compound ug/l Q ug/l ug/l %ug/l ug/l %RPD Rec/RPD 100-41-4 Ethylbenzene 4810 10000 15100 103 10000 15600 108 3 70-130/20 1634-04-4 Methyl Tert Butyl Ether 5960 10000 15200 92 10000 15900 99 5 70-130/20 95-63-6 1,2,4-Trimethylbenzene 4820 10000 14400 96 10000 15300 105 6 70-130/20 m,p-Xylene 16100 20000 34500 92 20000 35300 96 2 70-130/20 95-47-6 o-Xylene 8680 10000 18100 94 10000 19000 103 5 70-130/20 CAS No.Surrogate Recoveries MS MSD FA99528-1 Limits 1868-53-7 Dibromofluoromethane 97%98%95%70-130% 17060-07-0 1,2-Dichloroethane-D4 97%97%96%70-130% 2037-26-5 Toluene-D8 98%100%102%70-130% 460-00-4 4-Bromofluorobenzene 102%104%106%70-130% (a) Sample re-analyzed beyond hold time. * = Outside of Control Limits. 28 of 32 FA9952855.3.2 SGS North America Inc. GC Volatiles QC Data Summaries (SGS Scott, LA) Includes the following where applicable: • Method Blank Summaries • Blank Spike Summaries • Matrix Spike and Duplicate Summaries Orlando, FL Section 6 29 of 32 FA995286 Method Blank Summary Page 1 of 1 Job Number:FA99528 Account:ALSE SGS Orlando, FL Project:GRINCC: Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch GLE2292-MB1 LE038665.D 1 10/13/22 NN n/a n/a GLE2292 The QC reported here applies to the following samples:Method: MADEP VPH REV 2.1 FA99528-1 CAS No.Compound Result RL MDL Units Q 71-43-2 Benzene ND 5.0 0.14 ug/l 100-41-4 Ethylbenzene 0.28 5.0 0.17 ug/l J 1634-04-4 Methyl Tert Butyl Ether ND 5.0 0.14 ug/l 91-20-3 Naphthalene 2.0 5.0 0.41 ug/l J 108-88-3 Toluene 0.20 5.0 0.15 ug/l J m,p-Xylene 1.2 10 0.40 ug/l J 95-47-6 o-Xylene 0.56 5.0 0.18 ug/l J C5- C8 Aliphatics (Unadj.)ND 100 50 ug/l C9- C12 Aliphatics (Unadj.)ND 100 50 ug/l C9- C10 Aromatics (Unadj.)ND 100 20 ug/l C5- C8 Aliphatics ND 100 50 ug/l C9- C12 Aliphatics ND 100 50 ug/l C9- C10 Aromatics ND 100 20 ug/l CAS No.Surrogate Recoveries Limits 615-59-8 2,5-Dibromotoluene 91%70-130% 615-59-8 2,5-Dibromotoluene 79%70-130% 30 of 32 FA9952866.1.1 Blank Spike/Blank Spike Duplicate Summary Page 1 of 1 Job Number:FA99528 Account:ALSE SGS Orlando, FL Project:GRINCC: Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch GLE2292-BS1 LE038663.D 1 10/13/22 NN n/a n/a GLE2292 GLE2292-BSD1 LE038664.D 1 10/13/22 NN n/a n/a GLE2292 The QC reported here applies to the following samples:Method: MADEP VPH REV 2.1 FA99528-1 Spike BSP BSP BSD BSD Limits CAS No.Compound ug/l ug/l %ug/l %RPD Rec/RPD 71-43-2 Benzene 40 35.1 88 34.7 87 1 70-130/25 100-41-4 Ethylbenzene 40 35.8 90 35.7 89 0 70-130/25 1634-04-4 Methyl Tert Butyl Ether 40 33.0 83 34.6 87 5 70-130/25 91-20-3 Naphthalene 40 35.5 89 35.7 89 1 70-130/25 108-88-3 Toluene 40 35.0 88 35.2 88 1 70-130/25 m,p-Xylene 80 72.0 90 71.3 89 1 70-130/25 95-47-6 o-Xylene 40 34.9 87 35.0 88 0 70-130/25 C5- C8 Aliphatics (Unadj.)120 125 105 125 104 0 70-130/25 C9- C12 Aliphatics (Unadj.)120 115 96 111 93 3 70-130/25 C9- C10 Aromatics (Unadj.)40 34.9 87 35.3 88 1 70-130/25 C5- C8 Aliphatics 240 238 1 70-130/25 C9- C12 Aliphatics 293 292 0 70-130/25 C9- C10 Aromatics 40 34.9 87 35.3 88 1 70-130/25 CAS No.Surrogate Recoveries BSP BSD Limits 615-59-8 2,5-Dibromotoluene 94%96%70-130% 615-59-8 2,5-Dibromotoluene 83%86%70-130% * = Outside of Control Limits. 31 of 32 FA9952866.2.1 Duplicate Summary Page 1 of 1 Job Number:FA99528 Account:ALSE SGS Orlando, FL Project:GRINCC: Silver Express; 5115A N Tryon St, Charlotte, NC Sample File ID DF Analyzed By Prep Date Prep Batch Analytical Batch FA99528-1DUP LE038675.D 200 10/13/22 NN n/a n/a GLE2292 FA99528-1 LE038674.D 200 10/13/22 NN n/a n/a GLE2292 The QC reported here applies to the following samples:Method: MADEP VPH REV 2.1 FA99528-1 FA99528-1 DUP CAS No.Compound ug/l Q ug/l Q RPD Limits 71-43-2 Benzene 3880 3940 2 50 100-41-4 Ethylbenzene 6500 6500 0 50 1634-04-4 Methyl Tert Butyl Ether 8850 8800 1 50 91-20-3 Naphthalene 1230 1230 0 50 108-88-3 Toluene 45000 45000 0 50 m,p-Xylene 21700 21600 0 50 95-47-6 o-Xylene 10600 10500 1 50 C5- C8 Aliphatics (Unadj.)133000 135000 1 50 C9- C12 Aliphatics (Unadj.)128000 129000 1 50 C9- C10 Aromatics (Unadj.)25300 26200 3 50 C5- C8 Aliphatics 75000 77100 3 50 C9- C12 Aliphatics 63700 63900 0 50 C9- C10 Aromatics 25300 26200 3 50 CAS No.Surrogate Recoveries DUP FA99528-1 Limits 615-59-8 2,5-Dibromotoluene 99%101%70-130% 615-59-8 2,5-Dibromotoluene 89%90%70-130% * = Outside of Control Limits. 32 of 32 FA9952866.3.1   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.   2/7/2023 Geological Resources, Inc. Joanna Alley 3502 Hayes Road Monroe, NC, 28110 Ref: Analytical Testing Lab Report Number: 23-030-0031 Client Project Description: Silver Express GRI #5413 Dear Joanna Alley: Waypoint Analytical, LLC (Charlotte) received sample(s) on 1/30/2023 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, Danyale Love Project Manager Page 1 of 61 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 00016/23-030-0031 Page 2 of 61 Report Number: Sample Summary Table Client Project Description: 23-030-0031 Silver Express GRI #5413 Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID 01/30/2023 14:15Aqueous 98716 MW-2 01/30/2023 15:59 01/30/2023 14:15Aqueous 98716 MW-2 01/30/2023 15:59 6010D Eurofins - 01/30/2023 14:45Aqueous 98717 MW-3 01/30/2023 15:59 01/30/2023 14:45Aqueous 98717 MW-3 01/30/2023 15:59 6010D Eurofins - 01/30/2023 14:30Aqueous 98718 MW-4 01/30/2023 15:59 01/30/2023 14:30Aqueous 98718 MW-4 01/30/2023 15:59 6010D Eurofins - 01/30/2023 14:00Aqueous 98719 Trip Blanks 01/30/2023 15:59 Eurofins - Savannah: Eurofins Environmental Testing Southeast, Savannah, Savannah, GA Page 3 of 61 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-030-0031 Report Limit Project:Silver Express V 98716MW-2 122 02/03/2023 07:146200BBenzeneµg/L 1.80 97.4 02/03/2023 07:146200Bn-Butylbenzene µg/L 1.80 51.2 02/03/2023 07:146200Bsec-Butyl benzene µg/L 2.00 1300 02/03/2023 19:246200BEthylbenzeneµg/L 17.0 115 02/03/2023 07:146200BIsopropylbenzeneµg/L 1.80 22.4 02/03/2023 07:146200B4-Isopropyl toluene µg/L 0.890 168 02/03/2023 07:146200BMethyl tert-butyl ether (MTBE)µg/L 1.40 312 02/03/2023 07:146200BNaphthaleneµg/L 4.70 375 02/03/2023 07:146200Bn-Propylbenzene µg/L 1.90 1390 02/03/2023 07:146200Btert-Butyl Alcohol (TBA)µg/L 16.0 1330 02/03/2023 19:246200Btert-Amyl Alcohol (TAA)µg/L 190 J7.96 02/03/2023 07:146200Btert-Amyl Methyl Ether (TAME)µg/L 2.80 3690 02/03/2023 19:246200BTolueneµg/L 22.0 2610 02/03/2023 19:246200B1,2,4-Trimethylbenzene µg/L 19.0 778 02/03/2023 07:146200B1,3,5-Trimethylbenzene µg/L 1.80 3460 02/03/2023 19:246200Bo-Xylene µg/L 21.0 7130 02/03/2023 19:246200Bm,p-Xylene µg/L 42.0 10600 02/03/2023 19:246200BXylene (Total)µg/L 21.0 2500 02/01/2023 09:18CALCULATIONAliphatic C5-C8 (Adjusted)µg/L 1150 11700 02/01/2023 09:18CALCULATIONAliphatics C9-C12 (Adjusted)µg/L 2580 6930 02/01/2023 09:18CALCULATIONAromatic C9-C10 (Adjusted)µg/L 402 6310 02/01/2023 09:18MADEP-VPH Aliphatic C5-C8 µg/L 1150 30500 02/01/2023 09:18MADEP-VPH Aliphatic C9-C12 µg/L 2580 6930 02/01/2023 09:18MADEP-VPH Aromatic C9-C10 µg/L 402 V 98717MW-3 673 02/03/2023 07:396200BAcetoneµg/L 18.0 3240 02/03/2023 21:146200BBenzeneµg/L 180 16.6 02/03/2023 07:396200Bn-Butylbenzene µg/L 1.80 9.28 02/03/2023 07:396200Bsec-Butyl benzene µg/L 2.00 121 02/03/2023 07:396200BDi-Isopropyl Ether (DIPE)µg/L 5.00 2990 02/03/2023 21:146200BEthylbenzeneµg/L 170 128 02/03/2023 07:396200B2-Hexanone µg/L 3.80 89.6 02/03/2023 07:396200BIsopropylbenzeneµg/L 1.80 J3.46 02/03/2023 07:396200B4-Isopropyl toluene µg/L 0.890 491 02/03/2023 07:396200BMethyl Ethyl Ketone (MEK)µg/L 7.10 18000 02/03/2023 21:146200BMethyl tert-butyl ether (MTBE)µg/L 140 Page 4 of 61 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-030-0031 Report Limit Project:Silver Express V 98717MW-3 64.6 02/03/2023 07:396200B4-Methyl-2-Pentanone µg/L 0.780 346 02/03/2023 07:396200BNaphthaleneµg/L 4.70 216 02/03/2023 07:396200Bn-Propylbenzene µg/L 1.90 27700 02/03/2023 21:146200Btert-Butyl Alcohol (TBA)µg/L 1600 13700 02/03/2023 21:146200Btert-Amyl Alcohol (TAA)µg/L 1900 1920 02/03/2023 07:396200Btert-Amyl Methyl Ether (TAME)µg/L 2.80 26400 02/03/2023 21:146200BTolueneµg/L 220 2210 02/03/2023 21:146200B1,2,4-Trimethylbenzene µg/L 190 467 02/03/2023 07:396200B1,3,5-Trimethylbenzene µg/L 1.80 6150 02/03/2023 21:146200Bo-Xylene µg/L 210 10900 02/03/2023 21:146200Bm,p-Xylene µg/L 420 17100 02/03/2023 21:146200BXylene (Total)µg/L 210 14000 01/31/2023 16:34CALCULATIONAliphatic C5-C8 (Adjusted)µg/L 1150 11400 01/31/2023 16:34CALCULATIONAliphatics C9-C12 (Adjusted)µg/L 2580 5370 01/31/2023 16:34CALCULATIONAromatic C9-C10 (Adjusted)µg/L 402 43600 01/31/2023 16:34MADEP-VPH Aliphatic C5-C8 µg/L 1150 36800 01/31/2023 16:34MADEP-VPH Aliphatic C9-C12 µg/L 2580 5370 01/31/2023 16:34MADEP-VPH Aromatic C9-C10 µg/L 402 V 98718MW-4 J4.55 02/03/2023 08:036200BBenzeneµg/L 1.80 21.5 02/03/2023 08:036200BDi-Isopropyl Ether (DIPE)µg/L 5.00 11.9 02/03/2023 08:036200BEthylbenzeneµg/L 1.70 2150 02/03/2023 19:526200BMethyl tert-butyl ether (MTBE)µg/L 14.0 10.8 02/03/2023 08:036200BNaphthaleneµg/L 4.70 J2.59 02/03/2023 08:036200Bn-Propylbenzene µg/L 1.90 1030 02/03/2023 08:036200Btert-Butyl Alcohol (TBA)µg/L 16.0 150 02/03/2023 08:036200Btert-Amyl Alcohol (TAA)µg/L 19.0 128 02/03/2023 08:036200Btert-Amyl Methyl Ether (TAME)µg/L 2.80 42.2 02/03/2023 08:036200BTolueneµg/L 2.20 14.2 02/03/2023 08:036200B1,2,4-Trimethylbenzene µg/L 1.90 9.19 02/03/2023 08:036200B1,3,5-Trimethylbenzene µg/L 1.80 24.2 02/03/2023 08:036200Bo-Xylene µg/L 2.10 33.9 02/03/2023 08:036200Bm,p-Xylene µg/L 4.20 58.1 02/03/2023 08:036200BXylene (Total)µg/L 2.10 J87802/01/2023 10:30CALCULATIONAliphatic C5-C8 (Adjusted)µg/L 23.0 165 02/01/2023 10:30CALCULATIONAromatic C9-C10 (Adjusted)µg/L 8.04 Page 5 of 61 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-030-0031 Report Limit Project:Silver Express V 98718MW-4 925 02/01/2023 10:30MADEP-VPH Aliphatic C5-C8 µg/L 23.0 241 02/01/2023 10:30MADEP-VPH Aliphatic C9-C12 µg/L 51.6 165 02/01/2023 10:30MADEP-VPH Aromatic C9-C10 µg/L 8.04 Page 6 of 61   Client: Geological Resources, Inc. CASE NARRATIVE Project: Silver Express Lab Report Number: 23-030-0031 Date: 2/7/2023 Volatile Organic Compounds - GC/MS Method 6200B Analyte: Carbon Tetrachloride QC Batch No: V29449/V29448 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Carbon Tetrachloride QC Batch No: V29449/V29448 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Analyte: Carbon Tetrachloride QC Batch No: V29529/V29448 Recovery for the LCS exceeded the upper acceptance limit. However, all sample results associated with the batch are below the MQL, so this high bias had no impact upon the client data. The results are considered to be acceptable. Analyte: Ethanol QC Batch No: V29531/V29448 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Page 7 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-2 98716 Matrix: 1/30/2023 14:15 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 02/03/23 07:14 6200BMSA Surrogate: 4-Bromofluorobenzene 97.0 Limits: 70-130%02/03/23 07:1410 MSA V29449 Surrogate: Dibromofluoromethane 96.2 Limits: 70-130%02/03/23 07:1410 MSA V29449 Surrogate: 1,2-Dichloroethane - d4 90.8 Limits: 70-130%02/03/23 07:1410 MSA V29449 Surrogate: Toluene-d8 99.6 Limits: 70-130%02/03/23 07:1410 MSA V29449 Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%02/03/23 19:24100 MSA V29529 Surrogate: Dibromofluoromethane 97.8 Limits: 70-130%02/03/23 19:24100 MSA V29529 Surrogate: 1,2-Dichloroethane - d4 99.4 Limits: 70-130%02/03/23 19:24100 MSA V29529 Surrogate: Toluene-d8 100 Limits: 70-130%02/03/23 19:24100 MSA V29529 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 8 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-2 98716 Matrix: 1/30/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 <18.0 µg/L 18.0 100Acetone 10 02/03/23 07:14 V29449MSA 122 µg/L 1.80 5.00Benzene 10 02/03/23 07:14 V29449MSA <2.10 µg/L 2.10 5.00Bromobenzene 10 02/03/23 07:14 V29449MSA <4.20 µg/L 4.20 10.0Bromochloromethane 10 02/03/23 07:14 V29449MSA <1.60 µg/L 1.60 5.00Bromodichloromethane 10 02/03/23 07:14 V29449MSA <15.0 µg/L 15.0 50.0Bromoform 10 02/03/23 07:14 V29449MSA <2.80 µg/L 2.80 10.0Bromomethane 10 02/03/23 07:14 V29449MSA 97.4 µg/L 1.80 5.00n-Butylbenzene 10 02/03/23 07:14 V29449MSA 51.2 µg/L 2.00 5.00sec-Butyl benzene 10 02/03/23 07:14 V29449MSA <9.20 µg/L 9.20 20.0tert-Butyl benzene 10 02/03/23 07:14 V29449MSA <1.80 µg/L 1.80 5.00Carbon Tetrachloride 10 02/03/23 07:14 V29449MSA <1.90 µg/L 1.90 5.00Chlorobenzene 10 02/03/23 07:14 V29449MSA <1.90 µg/L 1.90 5.00Chlorodibromomethane 10 02/03/23 07:14 V29449MSA <4.30 µg/L 4.30 10.0Chloroethane 10 02/03/23 07:14 V29449MSA <2.20 µg/L 2.20 5.00Chloroform 10 02/03/23 07:14 V29449MSA <2.20 µg/L 2.20 5.00Chloromethane 10 02/03/23 07:14 V29449MSA <2.00 µg/L 2.00 5.002-Chlorotoluene 10 02/03/23 07:14 V29449MSA <2.00 µg/L 2.00 5.004-Chlorotoluene 10 02/03/23 07:14 V29449MSA <5.00 µg/L 5.00 5.00Di-Isopropyl Ether (DIPE)10 02/03/23 07:14 V29449MSA <11.0 µg/L 11.0 20.01,2-Dibromo-3-Chloropropane 10 02/03/23 07:14 V29449MSA <2.30 µg/L 2.30 5.00Dibromomethane 10 02/03/23 07:14 V29449MSA <2.20 µg/L 2.20 5.001,2-Dichlorobenzene 10 02/03/23 07:14 V29449MSA <1.90 µg/L 1.90 5.001,3-Dichlorobenzene 10 02/03/23 07:14 V29449MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 9 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-2 98716 Matrix: 1/30/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 <2.10 µg/L 2.10 5.001,4-Dichlorobenzene 10 02/03/23 07:14 V29449MSA <12.0 µg/L 12.0 50.0Dichlorodifluoromethane 10 02/03/23 07:14 V29449MSA <2.40 µg/L 2.40 5.001,1-Dichloroethane 10 02/03/23 07:14 V29449MSA <1.50 µg/L 1.50 5.001,2-Dichloroethane 10 02/03/23 07:14 V29449MSA <1.50 µg/L 1.50 5.001,1-Dichloroethene 10 02/03/23 07:14 V29449MSA <2.00 µg/L 2.00 5.00cis-1,2-Dichloroethene 10 02/03/23 07:14 V29449MSA <1.80 µg/L 1.80 5.00trans-1,2-Dichloroethene 10 02/03/23 07:14 V29449MSA <1.90 µg/L 1.90 5.001,2-Dichloropropane 10 02/03/23 07:14 V29449MSA <1.30 µg/L 1.30 5.001,3-Dichloropropane 10 02/03/23 07:14 V29449MSA <2.10 µg/L 2.10 20.02,2-Dichloropropane 10 02/03/23 07:14 V29449MSA <2.00 µg/L 2.00 5.001,1-Dichloropropene 10 02/03/23 07:14 V29449MSA <2.10 µg/L 2.10 5.00cis-1,3-Dichloropropene 10 02/03/23 07:14 V29449MSA <1.50 µg/L 1.50 5.00trans-1,3-Dichloropropene 10 02/03/23 07:14 V29449MSA <420 µg/L 420 2000Ethanol 10 02/03/23 07:14 V29449MSA 1300 µg/L 17.0 50.0Ethylbenzene 100 02/03/23 19:24 V29529MSA <3.50 µg/L 3.50 30.0Hexachlorobutadiene 10 02/03/23 07:14 V29449MSA <3.80 µg/L 3.80 10.02-Hexanone 10 02/03/23 07:14 V29449MSA 115 µg/L 1.80 5.00Isopropylbenzene 10 02/03/23 07:14 V29449MSA 22.4 µg/L 0.890 5.004-Isopropyl toluene 10 02/03/23 07:14 V29449MSA <7.10 µg/L 7.10 50.0Methyl Ethyl Ketone (MEK)10 02/03/23 07:14 V29449MSA 168 µg/L 1.40 10.0Methyl tert-butyl ether (MTBE)10 02/03/23 07:14 V29449MSA <0.780 µg/L 0.780 10.04-Methyl-2-Pentanone 10 02/03/23 07:14 V29449MSA <3.30 µg/L 3.30 20.0Methylene Chloride 10 02/03/23 07:14 V29449MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 10 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-2 98716 Matrix: 1/30/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 312 µg/L 4.70 10.0Naphthalene 10 02/03/23 07:14 V29449MSA 375 µg/L 1.90 5.00n-Propylbenzene 10 02/03/23 07:14 V29449MSA <2.20 µg/L 2.20 5.00Styrene 10 02/03/23 07:14 V29449MSA 1390 µg/L 16.0 100tert-Butyl Alcohol (TBA)10 02/03/23 07:14 V29449MSA <3.50 µg/L 3.50 100tert-Butyl formate (TBF)10 02/03/23 07:14 V29449MSA 1330 µg/L 190 1000tert-Amyl Alcohol (TAA)100 02/03/23 19:24 V29529MSA 7.96 J µg/L 2.80 100tert-Amyl Methyl Ether (TAME)10 02/03/23 07:14 V29449MSA <1.60 µg/L 1.60 5.001,1,1,2-Tetrachloroethane 10 02/03/23 07:14 V29449MSA <1.60 µg/L 1.60 5.001,1,2,2-Tetrachloroethane 10 02/03/23 07:14 V29449MSA <2.20 µg/L 2.20 5.00Tetrachloroethene 10 02/03/23 07:14 V29449MSA 3690 µg/L 22.0 50.0Toluene 100 02/03/23 19:24 V29529MSA <3.80 µg/L 3.80 5.001,2,3-Trichlorobenzene 10 02/03/23 07:14 V29449MSA <3.10 µg/L 3.10 5.001,2,4-Trichlorobenzene 10 02/03/23 07:14 V29449MSA <1.60 µg/L 1.60 5.001,1,1-Trichloroethane 10 02/03/23 07:14 V29449MSA <0.960 µg/L 0.960 5.001,1,2-Trichloroethane 10 02/03/23 07:14 V29449MSA <1.80 µg/L 1.80 5.00Trichloroethene 10 02/03/23 07:14 V29449MSA <1.80 µg/L 1.80 5.00Trichlorofluoromethane 10 02/03/23 07:14 V29449MSA <2.70 µg/L 2.70 5.001,2,3-Trichloropropane 10 02/03/23 07:14 V29449MSA 2610 µg/L 19.0 50.01,2,4-Trimethylbenzene 100 02/03/23 19:24 V29529MSA 778 µg/L 1.80 5.001,3,5-Trimethylbenzene 10 02/03/23 07:14 V29449MSA <10.0 µg/L 10.0 50.0Vinyl Acetate 10 02/03/23 07:14 V29449MSA <1.70 µg/L 1.70 5.00Vinyl Chloride 10 02/03/23 07:14 V29449MSA 3460 µg/L 21.0 50.0o-Xylene 100 02/03/23 19:24 V29529MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 11 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-2 98716 Matrix: 1/30/2023 14:15 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 7130 µg/L 42.0 100m,p-Xylene 100 02/03/23 19:24 V29529MSA 10600 µg/L 21.0 50.0Xylene (Total)100 02/03/23 19:24 V29529 Surrogate: 4-Bromofluorobenzene 97.0 Limits: 70-130%02/03/23 07:1410 MSA V29449 Surrogate: Dibromofluoromethane 96.2 Limits: 70-130%02/03/23 07:1410 MSA V29449 Surrogate: 1,2-Dichloroethane - d4 90.8 Limits: 70-130%02/03/23 07:1410 MSA V29449 Surrogate: Toluene-d8 99.6 Limits: 70-130%02/03/23 07:1410 MSA V29449 Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%02/03/23 19:24100 MSA V29529 Surrogate: Dibromofluoromethane 97.8 Limits: 70-130%02/03/23 19:24100 MSA V29529 Surrogate: 1,2-Dichloroethane - d4 99.4 Limits: 70-130%02/03/23 19:24100 MSA V29529 Surrogate: Toluene-d8 100 Limits: 70-130%02/03/23 19:24100 MSA V29529 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 12 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-2 98716 Matrix: 1/30/2023 14:15 Aqueous Analytical Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF CALCULATION 2500 µg/L 1150 5000Aliphatic C5-C8 (Adjusted)10 02/01/23 09:18 11700 µg/L 2580 5000Aliphatics C9-C12 (Adjusted)100 02/01/23 09:18 6930 µg/L 402 5000Aromatic C9-C10 (Adjusted)100 02/01/23 09:18 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V29321 01/31/23 08:00 6310 µg/L 1150 5000Aliphatic C5-C8 100 02/01/23 09:18 V29322TBL 30500 µg/L 2580 5000Aliphatic C9-C12 100 02/01/23 09:18 V29322TBL 6930 µg/L 402 5000Aromatic C9-C10 100 02/01/23 09:18 V29322TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)91.6 Limits: 70-130%02/01/23 09:18100 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)86.4 Limits: 70-130%02/01/23 09:18100 TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 13 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-3 98717 Matrix: 1/30/2023 14:45 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 02/03/23 07:39 6200BMSA Surrogate: 4-Bromofluorobenzene 99.8 Limits: 70-130%02/03/23 07:3910 MSA V29449 Surrogate: Dibromofluoromethane 96.4 Limits: 70-130%02/03/23 07:3910 MSA V29449 Surrogate: 1,2-Dichloroethane - d4 93.6 Limits: 70-130%02/03/23 07:3910 MSA V29449 Surrogate: Toluene-d8 100 Limits: 70-130%02/03/23 07:3910 MSA V29449 Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%02/03/23 21:141000 MSA V29529 Surrogate: Dibromofluoromethane 98.6 Limits: 70-130%02/03/23 21:141000 MSA V29529 Surrogate: 1,2-Dichloroethane - d4 97.8 Limits: 70-130%02/03/23 21:141000 MSA V29529 Surrogate: Toluene-d8 99.0 Limits: 70-130%02/03/23 21:141000 MSA V29529 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 14 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-3 98717 Matrix: 1/30/2023 14:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 673 µg/L 18.0 100Acetone 10 02/03/23 07:39 V29449MSA 3240 µg/L 180 500Benzene 1000 02/03/23 21:14 V29529MSA <2.10 µg/L 2.10 5.00Bromobenzene 10 02/03/23 07:39 V29449MSA <4.20 µg/L 4.20 10.0Bromochloromethane 10 02/03/23 07:39 V29449MSA <1.60 µg/L 1.60 5.00Bromodichloromethane 10 02/03/23 07:39 V29449MSA <15.0 µg/L 15.0 50.0Bromoform 10 02/03/23 07:39 V29449MSA <2.80 µg/L 2.80 10.0Bromomethane 10 02/03/23 07:39 V29449MSA 16.6 µg/L 1.80 5.00n-Butylbenzene 10 02/03/23 07:39 V29449MSA 9.28 µg/L 2.00 5.00sec-Butyl benzene 10 02/03/23 07:39 V29449MSA <9.20 µg/L 9.20 20.0tert-Butyl benzene 10 02/03/23 07:39 V29449MSA <1.80 µg/L 1.80 5.00Carbon Tetrachloride 10 02/03/23 07:39 V29449MSA <1.90 µg/L 1.90 5.00Chlorobenzene 10 02/03/23 07:39 V29449MSA <1.90 µg/L 1.90 5.00Chlorodibromomethane 10 02/03/23 07:39 V29449MSA <4.30 µg/L 4.30 10.0Chloroethane 10 02/03/23 07:39 V29449MSA <2.20 µg/L 2.20 5.00Chloroform 10 02/03/23 07:39 V29449MSA <2.20 µg/L 2.20 5.00Chloromethane 10 02/03/23 07:39 V29449MSA <2.00 µg/L 2.00 5.002-Chlorotoluene 10 02/03/23 07:39 V29449MSA <2.00 µg/L 2.00 5.004-Chlorotoluene 10 02/03/23 07:39 V29449MSA 121 µg/L 5.00 5.00Di-Isopropyl Ether (DIPE)10 02/03/23 07:39 V29449MSA <11.0 µg/L 11.0 20.01,2-Dibromo-3-Chloropropane 10 02/03/23 07:39 V29449MSA <2.30 µg/L 2.30 5.00Dibromomethane 10 02/03/23 07:39 V29449MSA <2.20 µg/L 2.20 5.001,2-Dichlorobenzene 10 02/03/23 07:39 V29449MSA <1.90 µg/L 1.90 5.001,3-Dichlorobenzene 10 02/03/23 07:39 V29449MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 15 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-3 98717 Matrix: 1/30/2023 14:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 <2.10 µg/L 2.10 5.001,4-Dichlorobenzene 10 02/03/23 07:39 V29449MSA <12.0 µg/L 12.0 50.0Dichlorodifluoromethane 10 02/03/23 07:39 V29449MSA <2.40 µg/L 2.40 5.001,1-Dichloroethane 10 02/03/23 07:39 V29449MSA <1.50 µg/L 1.50 5.001,2-Dichloroethane 10 02/03/23 07:39 V29449MSA <1.50 µg/L 1.50 5.001,1-Dichloroethene 10 02/03/23 07:39 V29449MSA <2.00 µg/L 2.00 5.00cis-1,2-Dichloroethene 10 02/03/23 07:39 V29449MSA <1.80 µg/L 1.80 5.00trans-1,2-Dichloroethene 10 02/03/23 07:39 V29449MSA <1.90 µg/L 1.90 5.001,2-Dichloropropane 10 02/03/23 07:39 V29449MSA <1.30 µg/L 1.30 5.001,3-Dichloropropane 10 02/03/23 07:39 V29449MSA <2.10 µg/L 2.10 20.02,2-Dichloropropane 10 02/03/23 07:39 V29449MSA <2.00 µg/L 2.00 5.001,1-Dichloropropene 10 02/03/23 07:39 V29449MSA <2.10 µg/L 2.10 5.00cis-1,3-Dichloropropene 10 02/03/23 07:39 V29449MSA <1.50 µg/L 1.50 5.00trans-1,3-Dichloropropene 10 02/03/23 07:39 V29449MSA <420 µg/L 420 2000Ethanol 10 02/03/23 07:39 V29449MSA 2990 µg/L 170 500Ethylbenzene 1000 02/03/23 21:14 V29529MSA <3.50 µg/L 3.50 30.0Hexachlorobutadiene 10 02/03/23 07:39 V29449MSA 128 µg/L 3.80 10.02-Hexanone 10 02/03/23 07:39 V29449MSA 89.6 µg/L 1.80 5.00Isopropylbenzene 10 02/03/23 07:39 V29449MSA 3.46 J µg/L 0.890 5.004-Isopropyl toluene 10 02/03/23 07:39 V29449MSA 491 µg/L 7.10 50.0Methyl Ethyl Ketone (MEK)10 02/03/23 07:39 V29449MSA 18000 µg/L 140 1000Methyl tert-butyl ether (MTBE)1000 02/03/23 21:14 V29529MSA 64.6 µg/L 0.780 10.04-Methyl-2-Pentanone 10 02/03/23 07:39 V29449MSA <3.30 µg/L 3.30 20.0Methylene Chloride 10 02/03/23 07:39 V29449MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 16 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-3 98717 Matrix: 1/30/2023 14:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 346 µg/L 4.70 10.0Naphthalene 10 02/03/23 07:39 V29449MSA 216 µg/L 1.90 5.00n-Propylbenzene 10 02/03/23 07:39 V29449MSA <2.20 µg/L 2.20 5.00Styrene 10 02/03/23 07:39 V29449MSA 27700 µg/L 1600 10000tert-Butyl Alcohol (TBA)1000 02/03/23 21:14 V29529MSA <3.50 µg/L 3.50 100tert-Butyl formate (TBF)10 02/03/23 07:39 V29449MSA 13700 µg/L 1900 10000tert-Amyl Alcohol (TAA)1000 02/03/23 21:14 V29529MSA 1920 µg/L 2.80 100tert-Amyl Methyl Ether (TAME)10 02/03/23 07:39 V29449MSA <1.60 µg/L 1.60 5.001,1,1,2-Tetrachloroethane 10 02/03/23 07:39 V29449MSA <1.60 µg/L 1.60 5.001,1,2,2-Tetrachloroethane 10 02/03/23 07:39 V29449MSA <2.20 µg/L 2.20 5.00Tetrachloroethene 10 02/03/23 07:39 V29449MSA 26400 µg/L 220 500Toluene 1000 02/03/23 21:14 V29529MSA <3.80 µg/L 3.80 5.001,2,3-Trichlorobenzene 10 02/03/23 07:39 V29449MSA <3.10 µg/L 3.10 5.001,2,4-Trichlorobenzene 10 02/03/23 07:39 V29449MSA <1.60 µg/L 1.60 5.001,1,1-Trichloroethane 10 02/03/23 07:39 V29449MSA <0.960 µg/L 0.960 5.001,1,2-Trichloroethane 10 02/03/23 07:39 V29449MSA <1.80 µg/L 1.80 5.00Trichloroethene 10 02/03/23 07:39 V29449MSA <1.80 µg/L 1.80 5.00Trichlorofluoromethane 10 02/03/23 07:39 V29449MSA <2.70 µg/L 2.70 5.001,2,3-Trichloropropane 10 02/03/23 07:39 V29449MSA 2210 µg/L 190 5001,2,4-Trimethylbenzene 1000 02/03/23 21:14 V29529MSA 467 µg/L 1.80 5.001,3,5-Trimethylbenzene 10 02/03/23 07:39 V29449MSA <10.0 µg/L 10.0 50.0Vinyl Acetate 10 02/03/23 07:39 V29449MSA <1.70 µg/L 1.70 5.00Vinyl Chloride 10 02/03/23 07:39 V29449MSA 6150 µg/L 210 500o-Xylene 1000 02/03/23 21:14 V29529MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 17 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-3 98717 Matrix: 1/30/2023 14:45 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 10900 µg/L 420 1000m,p-Xylene 1000 02/03/23 21:14 V29529MSA 17100 µg/L 210 500Xylene (Total)1000 02/03/23 21:14 V29529 Surrogate: 4-Bromofluorobenzene 99.8 Limits: 70-130%02/03/23 07:3910 MSA V29449 Surrogate: Dibromofluoromethane 96.4 Limits: 70-130%02/03/23 07:3910 MSA V29449 Surrogate: 1,2-Dichloroethane - d4 93.6 Limits: 70-130%02/03/23 07:3910 MSA V29449 Surrogate: Toluene-d8 100 Limits: 70-130%02/03/23 07:3910 MSA V29449 Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%02/03/23 21:141000 MSA V29529 Surrogate: Dibromofluoromethane 98.6 Limits: 70-130%02/03/23 21:141000 MSA V29529 Surrogate: 1,2-Dichloroethane - d4 97.8 Limits: 70-130%02/03/23 21:141000 MSA V29529 Surrogate: Toluene-d8 99.0 Limits: 70-130%02/03/23 21:141000 MSA V29529 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 18 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-3 98717 Matrix: 1/30/2023 14:45 Aqueous Analytical Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF CALCULATION 14000 µg/L 1150 5000Aliphatic C5-C8 (Adjusted)100 01/31/23 16:34 11400 µg/L 2580 5000Aliphatics C9-C12 (Adjusted)100 01/31/23 16:34 5370 µg/L 402 5000Aromatic C9-C10 (Adjusted)100 01/31/23 16:34 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V29321 01/31/23 08:00 43600 µg/L 1150 5000Aliphatic C5-C8 100 01/31/23 16:34 V29322TBL 36800 µg/L 2580 5000Aliphatic C9-C12 100 01/31/23 16:34 V29322TBL 5370 µg/L 402 5000Aromatic C9-C10 100 01/31/23 16:34 V29322TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)90.0 Limits: 70-130%01/31/23 16:34100 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)82.1 Limits: 70-130%01/31/23 16:34100 TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 19 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-4 98718 Matrix: 1/30/2023 14:30 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 02/03/23 08:03 6200BMSA Surrogate: 4-Bromofluorobenzene 97.2 Limits: 70-130%02/03/23 08:0310 MSA V29449 Surrogate: Dibromofluoromethane 98.6 Limits: 70-130%02/03/23 08:0310 MSA V29449 Surrogate: 1,2-Dichloroethane - d4 91.6 Limits: 70-130%02/03/23 08:0310 MSA V29449 Surrogate: Toluene-d8 100 Limits: 70-130%02/03/23 08:0310 MSA V29449 Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%02/03/23 19:52100 MSA V29529 Surrogate: Dibromofluoromethane 97.8 Limits: 70-130%02/03/23 19:52100 MSA V29529 Surrogate: 1,2-Dichloroethane - d4 100 Limits: 70-130%02/03/23 19:52100 MSA V29529 Surrogate: Toluene-d8 99.4 Limits: 70-130%02/03/23 19:52100 MSA V29529 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 20 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-4 98718 Matrix: 1/30/2023 14:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 <18.0 µg/L 18.0 100Acetone 10 02/03/23 08:03 V29449MSA 4.55 J µg/L 1.80 5.00Benzene 10 02/03/23 08:03 V29449MSA <2.10 µg/L 2.10 5.00Bromobenzene 10 02/03/23 08:03 V29449MSA <4.20 µg/L 4.20 10.0Bromochloromethane 10 02/03/23 08:03 V29449MSA <1.60 µg/L 1.60 5.00Bromodichloromethane 10 02/03/23 08:03 V29449MSA <15.0 µg/L 15.0 50.0Bromoform 10 02/03/23 08:03 V29449MSA <2.80 µg/L 2.80 10.0Bromomethane 10 02/03/23 08:03 V29449MSA <1.80 µg/L 1.80 5.00n-Butylbenzene 10 02/03/23 08:03 V29449MSA <2.00 µg/L 2.00 5.00sec-Butyl benzene 10 02/03/23 08:03 V29449MSA <9.20 µg/L 9.20 20.0tert-Butyl benzene 10 02/03/23 08:03 V29449MSA <1.80 µg/L 1.80 5.00Carbon Tetrachloride 10 02/03/23 08:03 V29449MSA <1.90 µg/L 1.90 5.00Chlorobenzene 10 02/03/23 08:03 V29449MSA <1.90 µg/L 1.90 5.00Chlorodibromomethane 10 02/03/23 08:03 V29449MSA <4.30 µg/L 4.30 10.0Chloroethane 10 02/03/23 08:03 V29449MSA <2.20 µg/L 2.20 5.00Chloroform 10 02/03/23 08:03 V29449MSA <2.20 µg/L 2.20 5.00Chloromethane 10 02/03/23 08:03 V29449MSA <2.00 µg/L 2.00 5.002-Chlorotoluene 10 02/03/23 08:03 V29449MSA <2.00 µg/L 2.00 5.004-Chlorotoluene 10 02/03/23 08:03 V29449MSA 21.5 µg/L 5.00 5.00Di-Isopropyl Ether (DIPE)10 02/03/23 08:03 V29449MSA <11.0 µg/L 11.0 20.01,2-Dibromo-3-Chloropropane 10 02/03/23 08:03 V29449MSA <2.30 µg/L 2.30 5.00Dibromomethane 10 02/03/23 08:03 V29449MSA <2.20 µg/L 2.20 5.001,2-Dichlorobenzene 10 02/03/23 08:03 V29449MSA <1.90 µg/L 1.90 5.001,3-Dichlorobenzene 10 02/03/23 08:03 V29449MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 21 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-4 98718 Matrix: 1/30/2023 14:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 <2.10 µg/L 2.10 5.001,4-Dichlorobenzene 10 02/03/23 08:03 V29449MSA <12.0 µg/L 12.0 50.0Dichlorodifluoromethane 10 02/03/23 08:03 V29449MSA <2.40 µg/L 2.40 5.001,1-Dichloroethane 10 02/03/23 08:03 V29449MSA <1.50 µg/L 1.50 5.001,2-Dichloroethane 10 02/03/23 08:03 V29449MSA <1.50 µg/L 1.50 5.001,1-Dichloroethene 10 02/03/23 08:03 V29449MSA <2.00 µg/L 2.00 5.00cis-1,2-Dichloroethene 10 02/03/23 08:03 V29449MSA <1.80 µg/L 1.80 5.00trans-1,2-Dichloroethene 10 02/03/23 08:03 V29449MSA <1.90 µg/L 1.90 5.001,2-Dichloropropane 10 02/03/23 08:03 V29449MSA <1.30 µg/L 1.30 5.001,3-Dichloropropane 10 02/03/23 08:03 V29449MSA <2.10 µg/L 2.10 20.02,2-Dichloropropane 10 02/03/23 08:03 V29449MSA <2.00 µg/L 2.00 5.001,1-Dichloropropene 10 02/03/23 08:03 V29449MSA <2.10 µg/L 2.10 5.00cis-1,3-Dichloropropene 10 02/03/23 08:03 V29449MSA <1.50 µg/L 1.50 5.00trans-1,3-Dichloropropene 10 02/03/23 08:03 V29449MSA <420 µg/L 420 2000Ethanol 10 02/03/23 08:03 V29449MSA 11.9 µg/L 1.70 5.00Ethylbenzene 10 02/03/23 08:03 V29449MSA <3.50 µg/L 3.50 30.0Hexachlorobutadiene 10 02/03/23 08:03 V29449MSA <3.80 µg/L 3.80 10.02-Hexanone 10 02/03/23 08:03 V29449MSA <1.80 µg/L 1.80 5.00Isopropylbenzene 10 02/03/23 08:03 V29449MSA <0.890 µg/L 0.890 5.004-Isopropyl toluene 10 02/03/23 08:03 V29449MSA <7.10 µg/L 7.10 50.0Methyl Ethyl Ketone (MEK)10 02/03/23 08:03 V29449MSA 2150 µg/L 14.0 100Methyl tert-butyl ether (MTBE)100 02/03/23 19:52 V29529MSA <0.780 µg/L 0.780 10.04-Methyl-2-Pentanone 10 02/03/23 08:03 V29449MSA <3.30 µg/L 3.30 20.0Methylene Chloride 10 02/03/23 08:03 V29449MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 22 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-4 98718 Matrix: 1/30/2023 14:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 10.8 µg/L 4.70 10.0Naphthalene 10 02/03/23 08:03 V29449MSA 2.59 J µg/L 1.90 5.00n-Propylbenzene 10 02/03/23 08:03 V29449MSA <2.20 µg/L 2.20 5.00Styrene 10 02/03/23 08:03 V29449MSA 1030 µg/L 16.0 100tert-Butyl Alcohol (TBA)10 02/03/23 08:03 V29449MSA <3.50 µg/L 3.50 100tert-Butyl formate (TBF)10 02/03/23 08:03 V29449MSA 150 µg/L 19.0 100tert-Amyl Alcohol (TAA)10 02/03/23 08:03 V29449MSA 128 µg/L 2.80 100tert-Amyl Methyl Ether (TAME)10 02/03/23 08:03 V29449MSA <1.60 µg/L 1.60 5.001,1,1,2-Tetrachloroethane 10 02/03/23 08:03 V29449MSA <1.60 µg/L 1.60 5.001,1,2,2-Tetrachloroethane 10 02/03/23 08:03 V29449MSA <2.20 µg/L 2.20 5.00Tetrachloroethene 10 02/03/23 08:03 V29449MSA 42.2 µg/L 2.20 5.00Toluene 10 02/03/23 08:03 V29449MSA <3.80 µg/L 3.80 5.001,2,3-Trichlorobenzene 10 02/03/23 08:03 V29449MSA <3.10 µg/L 3.10 5.001,2,4-Trichlorobenzene 10 02/03/23 08:03 V29449MSA <1.60 µg/L 1.60 5.001,1,1-Trichloroethane 10 02/03/23 08:03 V29449MSA <0.960 µg/L 0.960 5.001,1,2-Trichloroethane 10 02/03/23 08:03 V29449MSA <1.80 µg/L 1.80 5.00Trichloroethene 10 02/03/23 08:03 V29449MSA <1.80 µg/L 1.80 5.00Trichlorofluoromethane 10 02/03/23 08:03 V29449MSA <2.70 µg/L 2.70 5.001,2,3-Trichloropropane 10 02/03/23 08:03 V29449MSA 14.2 µg/L 1.90 5.001,2,4-Trimethylbenzene 10 02/03/23 08:03 V29449MSA 9.19 µg/L 1.80 5.001,3,5-Trimethylbenzene 10 02/03/23 08:03 V29449MSA <10.0 µg/L 10.0 50.0Vinyl Acetate 10 02/03/23 08:03 V29449MSA <1.70 µg/L 1.70 5.00Vinyl Chloride 10 02/03/23 08:03 V29449MSA 24.2 µg/L 2.10 5.00o-Xylene 10 02/03/23 08:03 V29449MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 23 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-4 98718 Matrix: 1/30/2023 14:30 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29448 02/02/23 14:00 V29528 02/03/23 09:00 33.9 µg/L 4.20 10.0m,p-Xylene 10 02/03/23 08:03 V29449MSA 58.1 µg/L 2.10 5.00Xylene (Total)10 02/03/23 08:03 V29449 Surrogate: 4-Bromofluorobenzene 97.2 Limits: 70-130%02/03/23 08:0310 MSA V29449 Surrogate: Dibromofluoromethane 98.6 Limits: 70-130%02/03/23 08:0310 MSA V29449 Surrogate: 1,2-Dichloroethane - d4 91.6 Limits: 70-130%02/03/23 08:0310 MSA V29449 Surrogate: Toluene-d8 100 Limits: 70-130%02/03/23 08:0310 MSA V29449 Surrogate: 4-Bromofluorobenzene 100 Limits: 70-130%02/03/23 19:52100 MSA V29529 Surrogate: Dibromofluoromethane 97.8 Limits: 70-130%02/03/23 19:52100 MSA V29529 Surrogate: 1,2-Dichloroethane - d4 100 Limits: 70-130%02/03/23 19:52100 MSA V29529 Surrogate: Toluene-d8 99.4 Limits: 70-130%02/03/23 19:52100 MSA V29529 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 24 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:MW-4 98718 Matrix: 1/30/2023 14:30 Aqueous Analytical Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF CALCULATION 878 J µg/L 23.0 100Aliphatic C5-C8 (Adjusted)10 02/01/23 10:30 <51.6 µg/L 51.6 100Aliphatics C9-C12 (Adjusted)10 02/01/23 10:30 165 µg/L 8.04 100Aromatic C9-C10 (Adjusted)2 02/01/23 10:30 Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V29321 01/31/23 08:00 925 µg/L 23.0 100Aliphatic C5-C8 2 02/01/23 10:30 V29322TBL 241 µg/L 51.6 100Aliphatic C9-C12 2 02/01/23 10:30 V29322TBL 165 µg/L 8.04 100Aromatic C9-C10 2 02/01/23 10:30 V29322TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (FID)101 Limits: 70-130%02/01/23 10:302 TBL MADEP-VPHSurrogate: 2,5-Dibromotoluene (PID)95.0 Limits: 70-130%02/01/23 10:302 TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 25 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:Trip Blanks 98719 Matrix: 1/30/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29530 02/03/23 09:00 <1.80 µg/L 1.80 10.0Acetone 1 02/03/23 14:50 V29531MSA <0.180 µg/L 0.180 0.500Benzene 1 02/03/23 14:50 V29531MSA <0.210 µg/L 0.210 0.500Bromobenzene 1 02/03/23 14:50 V29531MSA <0.420 µg/L 0.420 1.00Bromochloromethane 1 02/03/23 14:50 V29531MSA <0.160 µg/L 0.160 0.500Bromodichloromethane 1 02/03/23 14:50 V29531MSA <1.50 µg/L 1.50 5.00Bromoform 1 02/03/23 14:50 V29531MSA <0.280 µg/L 0.280 1.00Bromomethane 1 02/03/23 14:50 V29531MSA <0.180 µg/L 0.180 0.500n-Butylbenzene 1 02/03/23 14:50 V29531MSA <0.200 µg/L 0.200 0.500sec-Butyl benzene 1 02/03/23 14:50 V29531MSA <0.920 µg/L 0.920 2.00tert-Butyl benzene 1 02/03/23 14:50 V29531MSA <0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 02/03/23 14:50 V29531MSA <0.190 µg/L 0.190 0.500Chlorobenzene 1 02/03/23 14:50 V29531MSA <0.190 µg/L 0.190 0.500Chlorodibromomethane 1 02/03/23 14:50 V29531MSA <0.430 µg/L 0.430 1.00Chloroethane 1 02/03/23 14:50 V29531MSA <0.220 µg/L 0.220 0.500Chloroform 1 02/03/23 14:50 V29531MSA <0.220 µg/L 0.220 0.500Chloromethane 1 02/03/23 14:50 V29531MSA <0.200 µg/L 0.200 0.5002-Chlorotoluene 1 02/03/23 14:50 V29531MSA <0.200 µg/L 0.200 0.5004-Chlorotoluene 1 02/03/23 14:50 V29531MSA <0.500 µg/L 0.500 0.500Di-Isopropyl Ether (DIPE)1 02/03/23 14:50 V29531MSA <1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 02/03/23 14:50 V29531MSA <0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 02/03/23 14:50 V29531MSA <0.230 µg/L 0.230 0.500Dibromomethane 1 02/03/23 14:50 V29531MSA <0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 02/03/23 14:50 V29531MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 26 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:Trip Blanks 98719 Matrix: 1/30/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29530 02/03/23 09:00 <0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 02/03/23 14:50 V29531MSA <0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 02/03/23 14:50 V29531MSA <1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 02/03/23 14:50 V29531MSA <0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 02/03/23 14:50 V29531MSA <0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 02/03/23 14:50 V29531MSA <0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 02/03/23 14:50 V29531MSA <0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 02/03/23 14:50 V29531MSA <0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 02/03/23 14:50 V29531MSA <0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 02/03/23 14:50 V29531MSA <0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 02/03/23 14:50 V29531MSA <0.210 µg/L 0.210 2.002,2-Dichloropropane 1 02/03/23 14:50 V29531MSA <0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 02/03/23 14:50 V29531MSA <0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 02/03/23 14:50 V29531MSA <0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 02/03/23 14:50 V29531MSA <42.0 µg/L 42.0 200Ethanol 1 02/03/23 14:50 V29531MSA <0.170 µg/L 0.170 0.500Ethylbenzene 1 02/03/23 14:50 V29531MSA <0.350 µg/L 0.350 3.00Hexachlorobutadiene 1 02/03/23 14:50 V29531MSA <0.380 µg/L 0.380 1.002-Hexanone 1 02/03/23 14:50 V29531MSA <0.180 µg/L 0.180 0.500Isopropylbenzene 1 02/03/23 14:50 V29531MSA <0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 02/03/23 14:50 V29531MSA <0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 02/03/23 14:50 V29531MSA <0.140 µg/L 0.140 1.00Methyl tert-butyl ether (MTBE)1 02/03/23 14:50 V29531MSA <0.078 µg/L 0.078 1.004-Methyl-2-Pentanone 1 02/03/23 14:50 V29531MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 27 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:Trip Blanks 98719 Matrix: 1/30/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29530 02/03/23 09:00 <0.330 µg/L 0.330 2.00Methylene Chloride 1 02/03/23 14:50 V29531MSA <0.470 µg/L 0.470 1.00Naphthalene 1 02/03/23 14:50 V29531MSA <0.190 µg/L 0.190 0.500n-Propylbenzene 1 02/03/23 14:50 V29531MSA <0.220 µg/L 0.220 0.500Styrene 1 02/03/23 14:50 V29531MSA <0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 02/03/23 14:50 V29531MSA <0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 02/03/23 14:50 V29531MSA <0.220 µg/L 0.220 0.500Tetrachloroethene 1 02/03/23 14:50 V29531MSA <0.220 µg/L 0.220 0.500Toluene 1 02/03/23 14:50 V29531MSA <0.380 µg/L 0.380 0.5001,2,3-Trichlorobenzene 1 02/03/23 14:50 V29531MSA <0.310 µg/L 0.310 0.5001,2,4-Trichlorobenzene 1 02/03/23 14:50 V29531MSA <0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 02/03/23 14:50 V29531MSA <0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 02/03/23 14:50 V29531MSA <0.180 µg/L 0.180 0.500Trichloroethene 1 02/03/23 14:50 V29531MSA <0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 02/03/23 14:50 V29531MSA <0.270 µg/L 0.270 0.5001,2,3-Trichloropropane 1 02/03/23 14:50 V29531MSA <0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 02/03/23 14:50 V29531MSA <0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 02/03/23 14:50 V29531MSA <1.00 µg/L 1.00 5.00Vinyl Acetate 1 02/03/23 14:50 V29531MSA <0.170 µg/L 0.170 0.500Vinyl Chloride 1 02/03/23 14:50 V29531MSA <0.210 µg/L 0.210 0.500o-Xylene 1 02/03/23 14:50 V29531MSA <0.420 µg/L 0.420 1.00m,p-Xylene 1 02/03/23 14:50 V29531MSA Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 28 of 61 , REPORT OF ANALYSISReport Number : Project Information : NC 28110 23-030-0031 00087 Geological Resources, Inc. 3502 Hayes Road Joanna Alley Monroe Danyale Love Project Manager GRI #5413 Received : 01/30/2023 Silver Express Report Date : 02/07/2023 Sample ID : Lab No : Sampled:Trip Blanks 98719 Matrix: 1/30/2023 14:00 Aqueous Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V29530 02/03/23 09:00 <0.21 µg/L 0.210 0.500Xylene (Total)1 02/03/23 14:50 V29531 Surrogate: 4-Bromofluorobenzene 96.0 Limits: 70-130%02/03/23 14:501 MSA V29531 Surrogate: Dibromofluoromethane 98.2 Limits: 70-130%02/03/23 14:501 MSA V29531 Surrogate: 1,2-Dichloroethane - d4 89.0 Limits: 70-130%02/03/23 14:501 MSA V29531 Surrogate: Toluene-d8 99.2 Limits: 70-130%02/03/23 14:501 MSA V29531 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 29 of 61 ANALYTICAL REPORT PREPARED FOR Attn: PM Group NC Waypoint Analytical, Inc. 449 Springbrook Road Charlotte, North Carolina 28217 Generated 2/7/2023 6:07:55 PM JOB DESCRIPTION 23-030-0031 JOB NUMBER 680-229975-1 See page two for job notes and contact information. Savannah GA 31404 5102 LaRoche Avenue Eurofins Savannah Page 1 of 15 1 2 3 4 5 6 7 8 9 10 11 12 Page 30 of 61 Eurofins Savannah Eurofins Savannah is a laboratory within Eurofins Environment Testing Southeast, LLC, a company within Eurofins Environment Testing Group of Companies Job Notes The test results in this report meet NELAP requirements for parameters for which accreditation is required or available. Any exceptions to the NELAP requirements are noted. Results pertain only to samples listed in this report. This report may not be reproduced, except in full, without the written approval of the laboratory. Questions should be directed to the person who signed this report. The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins Environment Testing Southeast, LLC Project Manager. Authorization Generated 2/7/2023 6:07:55 PM Authorized for release by John Andros, Project Manager I John.Andros@et.eurofinsus.com (404)944-4744 Page 2 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 31 of 61 Definitions/Glossary Job ID: 680-229975-1Client: Waypoint Analytical, Inc. Project/Site: 23-030-0031 Glossary These commonly used abbreviations may or may not be present in this report. ¤ Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Savannah Page 3 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 32 of 61 Sample Summary Client: Waypoint Analytical, Inc.Job ID: 680-229975-1 Project/Site: 23-030-0031 Lab Sample ID Client Sample ID Matrix Collected Received 680-229975-1 MW-2 / 98716 Water 01/30/23 14:15 02/03/23 13:30 680-229975-2 MW-3 / 98717 Water 01/30/23 14:45 02/03/23 13:30 680-229975-3 MW-4 / 98718 Water 01/30/23 14:30 02/03/23 13:30 Eurofins SavannahPage 4 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 33 of 61 Case Narrative Client: Waypoint Analytical, Inc.Job ID: 680-229975-1 Project/Site: 23-030-0031 Job ID: 680-229975-1 Laboratory: Eurofins Savannah Narrative Job Narrative 680-229975-1 Receipt The samples were received on 2/3/2023 1:30 PM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperature of the cooler at receipt time was 5.4°C Metals No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Eurofins SavannahPage 5 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 34 of 61 Client Sample Results Job ID: 680-229975-1Client: Waypoint Analytical, Inc. Project/Site: 23-030-0031 Lab Sample ID: 680-229975-1Client Sample ID: MW-2 / 98716 Matrix: WaterDate Collected: 01/30/23 14:15 Date Received: 02/03/23 13:30 Method: SW846 6010D - Metals (ICP) - Total Recoverable RL MDL ND 10.0 6.60 ug/L 02/06/23 06:43 02/06/23 19:11 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier Lead Eurofins Savannah Page 6 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 35 of 61 Client Sample Results Job ID: 680-229975-1Client: Waypoint Analytical, Inc. Project/Site: 23-030-0031 Lab Sample ID: 680-229975-2Client Sample ID: MW-3 / 98717 Matrix: WaterDate Collected: 01/30/23 14:45 Date Received: 02/03/23 13:30 Method: SW846 6010D - Metals (ICP) - Total Recoverable RL MDL ND 10.0 6.60 ug/L 02/06/23 06:43 02/06/23 19:20 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier Lead Eurofins Savannah Page 7 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 36 of 61 Client Sample Results Job ID: 680-229975-1Client: Waypoint Analytical, Inc. Project/Site: 23-030-0031 Lab Sample ID: 680-229975-3Client Sample ID: MW-4 / 98718 Matrix: WaterDate Collected: 01/30/23 14:30 Date Received: 02/03/23 13:30 Method: SW846 6010D - Metals (ICP) - Total Recoverable RL MDL ND 10.0 6.60 ug/L 02/06/23 06:43 02/06/23 19:23 1 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier Lead Eurofins Savannah Page 8 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 37 of 61 QC Sample Results Job ID: 680-229975-1Client: Waypoint Analytical, Inc. Project/Site: 23-030-0031 Method: 6010D - Metals (ICP) Client Sample ID: Method BlankLab Sample ID: MB 680-762014/1-A Matrix: Water Prep Type: Total Recoverable Analysis Batch: 762327 Prep Batch: 762014 RL MDL Lead ND 10.0 6.60 ug/L 02/06/23 06:43 02/06/23 18:47 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 680-762014/2-A Matrix: Water Prep Type: Total Recoverable Analysis Batch: 762327 Prep Batch: 762014 Lead 505 478.7 ug/L 95 80-120 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits Client Sample ID: Matrix SpikeLab Sample ID: 680-229955-A-3-B MS Matrix: Water Prep Type: Dissolved Analysis Batch: 762327 Prep Batch: 762014 Lead ND 505 489.3 ug/L 97 75-125 Analyte MS MS DUnitResult Qualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Client Sample ID: Matrix Spike DuplicateLab Sample ID: 680-229955-A-3-C MSD Matrix: Water Prep Type: Dissolved Analysis Batch: 762327 Prep Batch: 762014 Lead ND 505 488.8 ug/L 97 75-125 0 20 Analyte MSD MSD DUnitResult Qualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Eurofins Savannah Page 9 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 38 of 61 QC Association Summary Job ID: 680-229975-1Client: Waypoint Analytical, Inc. Project/Site: 23-030-0031 Metals Prep Batch: 762014 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 3005A680-229975-1 MW-2 / 98716 Total Recoverable Water 3005A680-229975-2 MW-3 / 98717 Total Recoverable Water 3005A680-229975-3 MW-4 / 98718 Total Recoverable Water 3005AMB 680-762014/1-A Method Blank Total Recoverable Water 3005ALCS 680-762014/2-A Lab Control Sample Total Recoverable Water 3005A680-229955-A-3-B MS Matrix Spike Dissolved Water 3005A680-229955-A-3-C MSD Matrix Spike Duplicate Dissolved Analysis Batch: 762327 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Water 6010D 762014680-229975-1 MW-2 / 98716 Total Recoverable Water 6010D 762014680-229975-2 MW-3 / 98717 Total Recoverable Water 6010D 762014680-229975-3 MW-4 / 98718 Total Recoverable Water 6010D 762014MB 680-762014/1-A Method Blank Total Recoverable Water 6010D 762014LCS 680-762014/2-A Lab Control Sample Total Recoverable Water 6010D 762014680-229955-A-3-B MS Matrix Spike Dissolved Water 6010D 762014680-229955-A-3-C MSD Matrix Spike Duplicate Dissolved Eurofins Savannah Page 10 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 39 of 61 Lab Chronicle Client: Waypoint Analytical, Inc.Job ID: 680-229975-1 Project/Site: 23-030-0031 Client Sample ID: MW-2 / 98716 Lab Sample ID: 680-229975-1 Matrix: WaterDate Collected: 01/30/23 14:15 Date Received: 02/03/23 13:30 Prep 3005A RR02/06/23 06:43 EET SAV762014 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total Recoverable 25 mL 25 mL Analysis 6010D 1 762327 02/06/23 19:11 BCB EET SAVTotal Recoverable ICPHInstrument ID: Client Sample ID: MW-3 / 98717 Lab Sample ID: 680-229975-2 Matrix: WaterDate Collected: 01/30/23 14:45 Date Received: 02/03/23 13:30 Prep 3005A RR02/06/23 06:43 EET SAV762014 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total Recoverable 25 mL 25 mL Analysis 6010D 1 762327 02/06/23 19:20 BCB EET SAVTotal Recoverable ICPHInstrument ID: Client Sample ID: MW-4 / 98718 Lab Sample ID: 680-229975-3 Matrix: WaterDate Collected: 01/30/23 14:30 Date Received: 02/03/23 13:30 Prep 3005A RR02/06/23 06:43 EET SAV762014 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total Recoverable 25 mL 25 mL Analysis 6010D 1 762327 02/06/23 19:23 BCB EET SAVTotal Recoverable ICPHInstrument ID: Laboratory References: EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Eurofins Savannah Page 11 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 40 of 61 Accreditation/Certification Summary Client: Waypoint Analytical, Inc.Job ID: 680-229975-1 Project/Site: 23-030-0031 Laboratory: Eurofins Savannah The accreditations/certifications listed below are applicable to this report. Authority Program Identification Number Expiration Date North Carolina (WW/SW) State 269 12-31-23 South Carolina State 98001 06-30-23 Eurofins Savannah Page 12 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 41 of 61 Method Summary Job ID: 680-229975-1Client: Waypoint Analytical, Inc. Project/Site: 23-030-0031 Method Method Description LaboratoryProtocol SW8466010D Metals (ICP)EET SAV SW8463005A Preparation, Total Recoverable or Dissolved Metals EET SAV Protocol References: SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: EET SAV = Eurofins Savannah, 5102 LaRoche Avenue, Savannah, GA 31404, TEL (912)354-7858 Eurofins Savannah Page 13 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 42 of 61 Page 14 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 43 of 61 Login Sample Receipt Checklist Client: Waypoint Analytical, Inc.Job Number: 680-229975-1 Login Number: 229975 Question Answer Comment Creator: Sims, Robert D List Source: Eurofins Savannah List Number: 1 N/ARadioactivity wasn't checked or is </= background as measured by a survey meter. TrueThe cooler's custody seal, if present, is intact. TrueSample custody seals, if present, are intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable. TrueCooler Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueIs the Field Sampler's name present on COC? TrueThere are no discrepancies between the containers received and the COC. TrueSamples are received within Holding Time (excluding tests with immediate HTs) TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. N/ASample Preservation Verified. TrueThere is sufficient vol. for all requested analyses, incl. any requested MS/MSDs N/AContainers requiring zero headspace have no headspace or bubble is <6mm (1/4"). TrueMultiphasic samples are not present. TrueSamples do not require splitting or compositing. N/AResidual Chlorine Checked. Eurofins Savannah Page 15 of 15 2/7/2023 1 2 3 4 5 6 7 8 9 10 11 12 Page 44 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29448 Associated Lab Samples: 98716, 98717, 98718 LRB-V29448 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/03/23 01:5610.01.80<1.80µg/LAcetone 02/03/23 01:560.5000.180<0.180µg/LBenzene 02/03/23 01:560.5000.210<0.210µg/LBromobenzene 02/03/23 01:561.000.420<0.420µg/LBromochloromethane 02/03/23 01:560.5000.160<0.160µg/LBromodichloromethane 02/03/23 01:565.001.50<1.50µg/LBromoform 02/03/23 01:561.000.280<0.280µg/LBromomethane 02/03/23 01:560.5000.180<0.180µg/Ln-Butylbenzene 02/03/23 01:560.5000.200<0.200µg/Lsec-Butyl benzene 02/03/23 01:562.000.920<0.920µg/Ltert-Butyl benzene 02/03/23 01:560.5000.180<0.180µg/LCarbon Tetrachloride 02/03/23 01:560.5000.190<0.190µg/LChlorobenzene 02/03/23 01:560.5000.190<0.190µg/LChlorodibromomethane 02/03/23 01:561.000.430<0.430µg/LChloroethane 02/03/23 01:560.5000.220<0.220µg/LChloroform 02/03/23 01:560.5000.220<0.220µg/LChloromethane 02/03/23 01:560.5000.200<0.200µg/L2-Chlorotoluene 02/03/23 01:560.5000.200<0.200µg/L4-Chlorotoluene 02/03/23 01:560.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 02/03/23 01:562.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 02/03/23 01:560.5000.230<0.230µg/LDibromomethane 02/03/23 01:560.5000.220<0.220µg/L1,2-Dichlorobenzene 02/03/23 01:560.5000.190<0.190µg/L1,3-Dichlorobenzene 02/03/23 01:560.5000.210<0.210µg/L1,4-Dichlorobenzene 02/03/23 01:565.001.20<1.20µg/LDichlorodifluoromethane 02/03/23 01:560.5000.240<0.240µg/L1,1-Dichloroethane 02/03/23 01:560.5000.150<0.150µg/L1,2-Dichloroethane Page 1 of 15Date:02/07/2023 06:41 PM Page 45 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29448 Associated Lab Samples: 98716, 98717, 98718 LRB-V29448 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/03/23 01:560.5000.150<0.150µg/L1,1-Dichloroethene 02/03/23 01:560.5000.200<0.200µg/Lcis-1,2-Dichloroethene 02/03/23 01:560.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 02/03/23 01:560.5000.190<0.190µg/L1,2-Dichloropropane 02/03/23 01:560.5000.130<0.130µg/L1,3-Dichloropropane 02/03/23 01:562.000.210<0.210µg/L2,2-Dichloropropane 02/03/23 01:560.5000.200<0.200µg/L1,1-Dichloropropene 02/03/23 01:560.5000.210<0.210µg/Lcis-1,3-Dichloropropene 02/03/23 01:560.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 02/03/23 01:5620042.0<42.0µg/LEthanol 02/03/23 01:560.5000.170<0.170µg/LEthylbenzene 02/03/23 01:563.000.350<0.350µg/LHexachlorobutadiene 02/03/23 01:561.000.380<0.380µg/L2-Hexanone 02/03/23 01:560.5000.180<0.180µg/LIsopropylbenzene 02/03/23 01:560.5000.089<0.089µg/L4-Isopropyl toluene 02/03/23 01:565.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 02/03/23 01:561.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 02/03/23 01:561.000.078<0.078µg/L4-Methyl-2-Pentanone 02/03/23 01:562.000.330<0.330µg/LMethylene Chloride 02/03/23 01:561.000.470<0.470µg/LNaphthalene 02/03/23 01:560.5000.190<0.190µg/Ln-Propylbenzene 02/03/23 01:560.5000.220<0.220µg/LStyrene 02/03/23 01:5610.01.60<1.60µg/Ltert-Butyl Alcohol (TBA) 02/03/23 01:5610.00.350<0.350µg/Ltert-Butyl formate (TBF) 02/03/23 01:5610.01.90<1.90µg/Ltert-Amyl Alcohol (TAA) 02/03/23 01:5610.00.280<0.280µg/Ltert-Amyl Methyl Ether (TAME) 02/03/23 01:560.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane Page 2 of 15Date:02/07/2023 06:41 PM Page 46 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29448 Associated Lab Samples: 98716, 98717, 98718 LRB-V29448 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/03/23 01:560.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 02/03/23 01:560.5000.220<0.220µg/LTetrachloroethene 02/03/23 01:560.5000.220<0.220µg/LToluene 02/03/23 01:560.5000.380<0.380µg/L1,2,3-Trichlorobenzene 02/03/23 01:560.5000.310<0.310µg/L1,2,4-Trichlorobenzene 02/03/23 01:560.5000.160<0.160µg/L1,1,1-Trichloroethane 02/03/23 01:560.5000.096<0.096µg/L1,1,2-Trichloroethane 02/03/23 01:560.5000.180<0.180µg/LTrichloroethene 02/03/23 01:560.5000.180<0.180µg/LTrichlorofluoromethane 02/03/23 01:560.5000.270<0.270µg/L1,2,3-Trichloropropane 02/03/23 01:560.5000.190<0.190µg/L1,2,4-Trimethylbenzene 02/03/23 01:560.5000.180<0.180µg/L1,3,5-Trimethylbenzene 02/03/23 01:565.001.00<1.00µg/LVinyl Acetate 02/03/23 01:560.5000.170<0.170µg/LVinyl Chloride 02/03/23 01:560.5000.210<0.210µg/Lo-Xylene 02/03/23 01:561.000.420<0.420µg/Lm,p-Xylene 02/03/23 01:5610.01.00<1.00µg/L3,3-Dimethyl-1-butanol 02/03/23 01:564-Bromofluorobenzene (S)99.2 70-130 02/03/23 01:56Dibromofluoromethane (S)99.0 70-130 02/03/23 01:561,2-Dichloroethane - d4 (S)90.2 70-130 02/03/23 01:56Toluene-d8 (S)99.8 70-130 LCS-V29448 LCSD-V29448Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 43.0 10811646.340.0µg/LAcetone 40-160 7.3 20.0 Page 3 of 15Date:02/07/2023 06:41 PM Page 47 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29448 LCS-V29448 LCSD-V29448Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.3 96.598.519.720.0µg/LBenzene 70-130 2.0 20.0 17.9 89.590.018.020.0µg/LBromobenzene 70-130 0.5 20.0 20.6 10310721.320.0µg/LBromochloromethane 70-130 3.3 20.0 19.8 99.099.019.820.0µg/LBromodichloromethane 70-130 0.0 20.0 22.1 11111422.720.0µg/LBromoform 70-130 2.6 20.0 15.0 75.074.014.820.0µg/LBromomethane 60-140 1.3 20.0 18.7 93.596.519.320.0µg/Ln-Butylbenzene 70-130 3.1 20.0 18.9 94.596.019.220.0µg/Lsec-Butyl benzene 70-130 1.5 20.0 19.0 95.095.019.020.0µg/Ltert-Butyl benzene 70-130 0.0 20.0 21.8 109134*26.720.0µg/LCarbon Tetrachloride 70-130 20.2*20.0 19.3 96.598.519.720.0µg/LChlorobenzene 70-130 2.0 20.0 20.6 10310621.120.0µg/LChlorodibromomethane 70-130 2.3 20.0 19.7 98.510320.520.0µg/LChloroethane 60-140 3.9 20.0 20.2 10110320.620.0µg/LChloroform 70-130 1.9 20.0 17.9 89.595.519.120.0µg/LChloromethane 60-140 6.4 20.0 18.3 91.595.519.120.0µg/L2-Chlorotoluene 70-130 4.2 20.0 19.0 95.096.519.320.0µg/L4-Chlorotoluene 70-130 1.5 20.0 20.3 10210521.020.0µg/LDi-Isopropyl Ether (DIPE)70-130 3.3 20.0 20.9 10511021.920.0µg/L1,2-Dibromo-3-Chloropropane 70-130 4.6 20.0 18.3 91.592.018.420.0µg/LDibromomethane 70-130 0.5 20.0 19.9 99.599.519.920.0µg/L1,2-Dichlorobenzene 70-130 0.0 20.0 19.7 98.510120.220.0µg/L1,3-Dichlorobenzene 70-130 2.5 20.0 19.9 99.510420.720.0µg/L1,4-Dichlorobenzene 70-130 3.9 20.0 20.6 10311322.620.0µg/LDichlorodifluoromethane 60-140 9.2 20.0 19.7 98.510521.020.0µg/L1,1-Dichloroethane 70-130 6.3 20.0 18.5 92.598.019.620.0µg/L1,2-Dichloroethane 70-130 5.7 20.0 Page 4 of 15* QC Fail Date:02/07/2023 06:41 PM Page 48 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29448 LCS-V29448 LCSD-V29448Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.6 98.010320.620.0µg/L1,1-Dichloroethene 70-130 4.9 20.0 18.9 94.510020.020.0µg/Lcis-1,2-Dichloroethene 70-130 5.6 20.0 17.6 88.095.519.120.0µg/Ltrans-1,2-Dichloroethene 70-130 8.1 20.0 19.4 97.095.519.120.0µg/L1,2-Dichloropropane 70-130 1.5 20.0 18.6 93.095.019.020.0µg/L1,3-Dichloropropane 70-130 2.1 20.0 18.6 93.097.019.420.0µg/L2,2-Dichloropropane 70-130 4.2 20.0 21.4 10711022.020.0µg/L1,1-Dichloropropene 70-130 2.7 20.0 20.0 10010220.420.0µg/Lcis-1,3-Dichloropropene 70-130 1.9 20.0 19.0 95.099.019.820.0µg/Ltrans-1,3-Dichloropropene 70-130 4.1 20.0 576 115120599500µg/LEthanol 60-140 3.9 20.0 19.0 95.096.519.320.0µg/LEthylbenzene 70-130 1.5 20.0 22.2 11111222.420.0µg/LHexachlorobutadiene 70-130 0.8 20.0 17.3 86.587.017.420.0µg/L2-Hexanone 60-140 0.5 20.0 19.0 95.010120.220.0µg/LIsopropylbenzene 70-130 6.1 20.0 19.7 98.510020.020.0µg/L4-Isopropyl toluene 70-130 1.5 20.0 17.4 87.094.518.920.0µg/LMethyl Ethyl Ketone (MEK)60-140 8.2 20.0 18.7 93.597.019.420.0µg/LMethyl tert-butyl ether (MTBE)70-130 3.6 20.0 16.6 83.086.517.320.0µg/L4-Methyl-2-Pentanone 60-140 4.1 20.0 17.9 89.594.018.820.0µg/LMethylene Chloride 70-130 4.9 20.0 18.2 91.093.518.720.0µg/LNaphthalene 70-130 2.7 20.0 18.4 92.095.519.120.0µg/Ln-Propylbenzene 70-130 3.7 20.0 20.5 10310120.120.0µg/LStyrene 70-130 1.9 20.0 31.5 78.790.536.240.0µg/Ltert-Butyl Alcohol (TBA)40-140 13.8 20.0 35.1 87.786.534.640.0µg/Ltert-Butyl formate (TBF)40-140 1.4 20.0 16.7 83.594.518.920.0µg/Ltert-Amyl Alcohol (TAA)40-140 12.3 20.0 39.4 98.599.539.840.0µg/Ltert-Amyl Methyl Ether (TAME)40-140 1.0 20.0 Page 5 of 15Date:02/07/2023 06:41 PM Page 49 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29449QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29448 LCS-V29448 LCSD-V29448Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.9 10510320.620.0µg/L1,1,1,2-Tetrachloroethane 70-130 1.4 20.0 18.8 94.093.518.720.0µg/L1,1,2,2-Tetrachloroethane 70-130 0.5 20.0 19.8 99.010320.520.0µg/LTetrachloroethene 70-130 3.4 20.0 18.9 94.598.519.720.0µg/LToluene 70-130 4.1 20.0 19.6 98.099.019.820.0µg/L1,2,3-Trichlorobenzene 70-130 1.0 20.0 19.9 99.510220.420.0µg/L1,2,4-Trichlorobenzene 70-130 2.4 20.0 20.3 10210320.520.0µg/L1,1,1-Trichloroethane 70-130 0.9 20.0 18.3 91.598.019.620.0µg/L1,1,2-Trichloroethane 70-130 6.8 20.0 19.9 99.510220.320.0µg/LTrichloroethene 70-130 1.9 20.0 19.4 97.010220.320.0µg/LTrichlorofluoromethane 60-140 4.5 20.0 17.4 87.083.516.720.0µg/L1,2,3-Trichloropropane 70-130 4.1 20.0 18.5 92.596.519.320.0µg/L1,2,4-Trimethylbenzene 70-130 4.2 20.0 19.2 96.097.019.420.0µg/L1,3,5-Trimethylbenzene 70-130 1.0 20.0 18.2 91.083.516.720.0µg/LVinyl Acetate 60-140 8.5 20.0 19.7 98.598.019.620.0µg/LVinyl Chloride 60-140 0.5 20.0 18.8 94.096.019.220.0µg/Lo-Xylene 70-130 2.1 20.0 38.6 96.597.739.140.0µg/Lm,p-Xylene 70-130 1.2 20.0 17.4 87.085.017.020.0µg/L3,3-Dimethyl-1-butanol 70-130 2.3 20.0 95.697.44-Bromofluorobenzene (S)70-130 104104Dibromofluoromethane (S)70-130 93.296.81,2-Dichloroethane - d4 (S)70-130 99.2101Toluene-d8 (S)70-130 Page 6 of 15Date:02/07/2023 06:41 PM Page 50 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29529QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29528 Associated Lab Samples: 98716, 98717, 98718 LRB-V29528 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/03/23 13:580.5000.180<0.180µg/LBenzene 02/03/23 13:580.5000.170<0.170µg/LEthylbenzene 02/03/23 13:581.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 02/03/23 13:5810.01.60<1.60µg/Ltert-Butyl Alcohol (TBA) 02/03/23 13:5810.01.90<1.90µg/Ltert-Amyl Alcohol (TAA) 02/03/23 13:580.5000.220<0.220µg/LToluene 02/03/23 13:580.5000.190<0.190µg/L1,2,4-Trimethylbenzene 02/03/23 13:580.5000.210<0.210µg/Lo-Xylene 02/03/23 13:581.000.420<0.420µg/Lm,p-Xylene 02/03/23 13:584-Bromofluorobenzene (S)100 70-130 02/03/23 13:58Dibromofluoromethane (S)97.6 70-130 02/03/23 13:581,2-Dichloroethane - d4 (S)98.2 70-130 02/03/23 13:58Toluene-d8 (S)100 70-130 LCS-V29528 LCSD-V29528Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 19.9 99.510120.220.0µg/LBenzene 70-130 1.4 20.0 19.8 99.010320.620.0µg/LEthylbenzene 70-130 3.9 20.0 21.3 10710721.420.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.4 20.0 38.6 96.590.736.340.0µg/Ltert-Butyl Alcohol (TBA)40-140 6.1 20.0 21.1 10612524.920.0µg/Ltert-Amyl Alcohol (TAA)40-140 16.5 20.0 20.2 10110120.120.0µg/LToluene 70-130 0.4 20.0 21.3 10710921.720.0µg/L1,2,4-Trimethylbenzene 70-130 1.8 20.0 21.1 10610721.320.0µg/Lo-Xylene 70-130 0.9 20.0 42.3 10611043.840.0µg/Lm,p-Xylene 70-130 3.4 20.0 Page 7 of 15Date:02/07/2023 06:41 PM Page 51 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29529QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29528 LCS-V29528 LCSD-V29528Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 10098.64-Bromofluorobenzene (S)70-130 98.696.8Dibromofluoromethane (S)70-130 99.099.01,2-Dichloroethane - d4 (S)70-130 100101Toluene-d8 (S)70-130 Page 8 of 15Date:02/07/2023 06:41 PM Page 52 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29531QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29530 Associated Lab Samples: 98719 LRB-V29530 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/03/23 14:2610.01.80<1.80µg/LAcetone 02/03/23 14:260.5000.180<0.180µg/LBenzene 02/03/23 14:260.5000.210<0.210µg/LBromobenzene 02/03/23 14:261.000.420<0.420µg/LBromochloromethane 02/03/23 14:260.5000.160<0.160µg/LBromodichloromethane 02/03/23 14:265.001.50<1.50µg/LBromoform 02/03/23 14:261.000.280<0.280µg/LBromomethane 02/03/23 14:260.5000.180<0.180µg/Ln-Butylbenzene 02/03/23 14:260.5000.200<0.200µg/Lsec-Butyl benzene 02/03/23 14:262.000.920<0.920µg/Ltert-Butyl benzene 02/03/23 14:260.5000.180<0.180µg/LCarbon Tetrachloride 02/03/23 14:260.5000.190<0.190µg/LChlorobenzene 02/03/23 14:260.5000.190<0.190µg/LChlorodibromomethane 02/03/23 14:261.000.430<0.430µg/LChloroethane 02/03/23 14:260.5000.220<0.220µg/LChloroform 02/03/23 14:260.5000.220<0.220µg/LChloromethane 02/03/23 14:260.5000.200<0.200µg/L2-Chlorotoluene 02/03/23 14:260.5000.200<0.200µg/L4-Chlorotoluene 02/03/23 14:260.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE) 02/03/23 14:262.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane 02/03/23 14:260.5000.200<0.200µg/L1,2-Dibromoethane 02/03/23 14:260.5000.230<0.230µg/LDibromomethane 02/03/23 14:260.5000.220<0.220µg/L1,2-Dichlorobenzene 02/03/23 14:260.5000.190<0.190µg/L1,3-Dichlorobenzene 02/03/23 14:260.5000.210<0.210µg/L1,4-Dichlorobenzene 02/03/23 14:265.001.20<1.20µg/LDichlorodifluoromethane 02/03/23 14:260.5000.240<0.240µg/L1,1-Dichloroethane Page 9 of 15Date:02/07/2023 06:41 PM Page 53 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29531QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29530 Associated Lab Samples: 98719 LRB-V29530 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/03/23 14:260.5000.150<0.150µg/L1,2-Dichloroethane 02/03/23 14:260.5000.150<0.150µg/L1,1-Dichloroethene 02/03/23 14:260.5000.200<0.200µg/Lcis-1,2-Dichloroethene 02/03/23 14:260.5000.180<0.180µg/Ltrans-1,2-Dichloroethene 02/03/23 14:260.5000.190<0.190µg/L1,2-Dichloropropane 02/03/23 14:260.5000.130<0.130µg/L1,3-Dichloropropane 02/03/23 14:262.000.210<0.210µg/L2,2-Dichloropropane 02/03/23 14:260.5000.200<0.200µg/L1,1-Dichloropropene 02/03/23 14:260.5000.210<0.210µg/Lcis-1,3-Dichloropropene 02/03/23 14:260.5000.150<0.150µg/Ltrans-1,3-Dichloropropene 02/03/23 14:2620042.0<42.0µg/LEthanol 02/03/23 14:260.5000.170<0.170µg/LEthylbenzene 02/03/23 14:263.000.350<0.350µg/LHexachlorobutadiene 02/03/23 14:261.000.380<0.380µg/L2-Hexanone 02/03/23 14:260.5000.180<0.180µg/LIsopropylbenzene 02/03/23 14:260.5000.089<0.089µg/L4-Isopropyl toluene 02/03/23 14:265.000.710<0.710µg/LMethyl Ethyl Ketone (MEK) 02/03/23 14:261.000.140<0.140µg/LMethyl tert-butyl ether (MTBE) 02/03/23 14:261.000.078<0.078µg/L4-Methyl-2-Pentanone 02/03/23 14:262.000.330<0.330µg/LMethylene Chloride 02/03/23 14:261.000.470<0.470µg/LNaphthalene 02/03/23 14:260.5000.190<0.190µg/Ln-Propylbenzene 02/03/23 14:260.5000.220<0.220µg/LStyrene 02/03/23 14:260.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane 02/03/23 14:260.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane 02/03/23 14:260.5000.220<0.220µg/LTetrachloroethene 02/03/23 14:260.5000.220<0.220µg/LToluene Page 10 of 15Date:02/07/2023 06:41 PM Page 54 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29531QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29530 Associated Lab Samples: 98719 LRB-V29530 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 02/03/23 14:260.5000.380<0.380µg/L1,2,3-Trichlorobenzene 02/03/23 14:260.5000.310<0.310µg/L1,2,4-Trichlorobenzene 02/03/23 14:260.5000.160<0.160µg/L1,1,1-Trichloroethane 02/03/23 14:260.5000.096<0.096µg/L1,1,2-Trichloroethane 02/03/23 14:260.5000.180<0.180µg/LTrichloroethene 02/03/23 14:260.5000.180<0.180µg/LTrichlorofluoromethane 02/03/23 14:260.5000.270<0.270µg/L1,2,3-Trichloropropane 02/03/23 14:260.5000.190<0.190µg/L1,2,4-Trimethylbenzene 02/03/23 14:260.5000.180<0.180µg/L1,3,5-Trimethylbenzene 02/03/23 14:265.001.00<1.00µg/LVinyl Acetate 02/03/23 14:260.5000.170<0.170µg/LVinyl Chloride 02/03/23 14:260.5000.210<0.210µg/Lo-Xylene 02/03/23 14:261.000.420<0.420µg/Lm,p-Xylene 02/03/23 14:264-Bromofluorobenzene (S)99.2 70-130 02/03/23 14:26Dibromofluoromethane (S)100 70-130 02/03/23 14:261,2-Dichloroethane - d4 (S)91.8 70-130 02/03/23 14:26Toluene-d8 (S)98.6 70-130 LCS-V29530 LCSD-V29530Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 40.6 10210843.340.0µg/LAcetone 40-160 6.4 20.0 19.0 95.096.519.320.0µg/LBenzene 70-130 1.5 20.0 18.2 91.092.018.420.0µg/LBromobenzene 70-130 1.0 20.0 19.5 97.510521.020.0µg/LBromochloromethane 70-130 7.4 20.0 19.9 99.510120.120.0µg/LBromodichloromethane 70-130 1.0 20.0 Page 11 of 15Date:02/07/2023 06:41 PM Page 55 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29531QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29530 LCS-V29530 LCSD-V29530Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 21.6 10811022.020.0µg/LBromoform 70-130 1.8 20.0 17.1 85.587.517.520.0µg/LBromomethane 60-140 2.3 20.0 19.1 95.596.019.220.0µg/Ln-Butylbenzene 70-130 0.5 20.0 19.3 96.596.519.320.0µg/Lsec-Butyl benzene 70-130 0.0 20.0 19.2 96.097.519.520.0µg/Ltert-Butyl benzene 70-130 1.5 20.0 20.7 10410020.020.0µg/LCarbon Tetrachloride 70-130 3.4 20.0 20.0 10098.519.720.0µg/LChlorobenzene 70-130 1.5 20.0 21.5 10810320.620.0µg/LChlorodibromomethane 70-130 4.2 20.0 19.8 99.010220.420.0µg/LChloroethane 60-140 2.9 20.0 19.2 96.099.519.920.0µg/LChloroform 70-130 3.5 20.0 18.4 92.095.519.120.0µg/LChloromethane 60-140 3.7 20.0 19.5 97.596.019.220.0µg/L2-Chlorotoluene 70-130 1.5 20.0 19.3 96.594.518.920.0µg/L4-Chlorotoluene 70-130 2.0 20.0 19.4 97.099.519.920.0µg/LDi-Isopropyl Ether (DIPE)70-130 2.5 20.0 20.6 10399.519.920.0µg/L1,2-Dibromo-3-Chloropropane 70-130 3.4 20.0 20.3 10298.519.720.0µg/L1,2-Dibromoethane 70-130 3.0 20.0 17.5 87.590.518.120.0µg/LDibromomethane 70-130 3.3 20.0 20.1 10110120.120.0µg/L1,2-Dichlorobenzene 70-130 0.0 20.0 19.8 99.099.519.920.0µg/L1,3-Dichlorobenzene 70-130 0.5 20.0 20.3 10210020.020.0µg/L1,4-Dichlorobenzene 70-130 1.4 20.0 21.8 10911322.520.0µg/LDichlorodifluoromethane 60-140 3.1 20.0 19.6 98.010120.220.0µg/L1,1-Dichloroethane 70-130 3.0 20.0 18.0 90.094.518.920.0µg/L1,2-Dichloroethane 70-130 4.8 20.0 19.2 96.095.019.020.0µg/L1,1-Dichloroethene 70-130 1.0 20.0 19.0 95.098.019.620.0µg/Lcis-1,2-Dichloroethene 70-130 3.1 20.0 17.3 86.588.517.720.0µg/Ltrans-1,2-Dichloroethene 70-130 2.2 20.0 Page 12 of 15Date:02/07/2023 06:41 PM Page 56 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29531QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29530 LCS-V29530 LCSD-V29530Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 18.8 94.096.519.320.0µg/L1,2-Dichloropropane 70-130 2.6 20.0 18.4 92.090.518.120.0µg/L1,3-Dichloropropane 70-130 1.6 20.0 18.4 92.098.519.720.0µg/L2,2-Dichloropropane 70-130 6.8 20.0 21.3 10710220.320.0µg/L1,1-Dichloropropene 70-130 4.8 20.0 19.2 96.098.519.720.0µg/Lcis-1,3-Dichloropropene 70-130 2.5 20.0 19.5 97.594.518.920.0µg/Ltrans-1,3-Dichloropropene 70-130 3.1 20.0 400 80.0113564500µg/LEthanol 60-140 34.0*20.0 19.0 95.092.518.520.0µg/LEthylbenzene 70-130 2.6 20.0 22.1 11111222.420.0µg/LHexachlorobutadiene 70-130 1.3 20.0 16.5 82.583.016.620.0µg/L2-Hexanone 60-140 0.6 20.0 19.6 98.098.519.720.0µg/LIsopropylbenzene 70-130 0.5 20.0 19.4 97.099.019.820.0µg/L4-Isopropyl toluene 70-130 2.0 20.0 15.9 79.589.017.820.0µg/LMethyl Ethyl Ketone (MEK)60-140 11.2 20.0 17.9 89.591.018.220.0µg/LMethyl tert-butyl ether (MTBE)70-130 1.6 20.0 15.6 78.082.016.420.0µg/L4-Methyl-2-Pentanone 60-140 5.0 20.0 17.3 86.588.017.620.0µg/LMethylene Chloride 70-130 1.7 20.0 17.6 88.092.518.520.0µg/LNaphthalene 70-130 4.9 20.0 19.1 95.595.519.120.0µg/Ln-Propylbenzene 70-130 0.0 20.0 20.1 10110320.620.0µg/LStyrene 70-130 2.4 20.0 20.8 10499.019.820.0µg/L1,1,1,2-Tetrachloroethane 70-130 4.9 20.0 17.9 89.595.019.020.0µg/L1,1,2,2-Tetrachloroethane 70-130 5.9 20.0 21.6 10810621.220.0µg/LTetrachloroethene 70-130 1.8 20.0 18.7 93.595.019.020.0µg/LToluene 70-130 1.5 20.0 19.9 99.510721.420.0µg/L1,2,3-Trichlorobenzene 70-130 7.2 20.0 20.0 10010020.020.0µg/L1,2,4-Trichlorobenzene 70-130 0.0 20.0 19.6 98.098.519.720.0µg/L1,1,1-Trichloroethane 70-130 0.5 20.0 Page 13 of 15* QC Fail Date:02/07/2023 06:41 PM Page 57 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V29531QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V29530 LCS-V29530 LCSD-V29530Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 18.4 92.092.518.520.0µg/L1,1,2-Trichloroethane 70-130 0.5 20.0 19.5 97.596.019.220.0µg/LTrichloroethene 70-130 1.5 20.0 20.4 10210420.820.0µg/LTrichlorofluoromethane 60-140 1.9 20.0 17.2 86.087.017.420.0µg/L1,2,3-Trichloropropane 70-130 1.1 20.0 19.5 97.596.019.220.0µg/L1,2,4-Trimethylbenzene 70-130 1.5 20.0 19.5 97.597.519.520.0µg/L1,3,5-Trimethylbenzene 70-130 0.0 20.0 19.6 98.011522.920.0µg/LVinyl Acetate 60-140 15.5 20.0 19.5 97.510220.420.0µg/LVinyl Chloride 60-140 4.5 20.0 19.3 96.595.519.120.0µg/Lo-Xylene 70-130 1.0 20.0 39.6 99.097.038.840.0µg/Lm,p-Xylene 70-130 2.0 20.0 97.299.84-Bromofluorobenzene (S)70-130 100101Dibromofluoromethane (S)70-130 93.895.21,2-Dichloroethane - d4 (S)70-130 10297.8Toluene-d8 (S)70-130 Page 14 of 15Date:02/07/2023 06:41 PM Page 58 of 61 Quality Control Data 23-030-0031Report No: Project Description: Client ID:Geological Resources, Inc. Silver Express QC Prep Batch Method: Massachusetts VPH MADEP-VPH V29322QC Analytical Batch(es): Analysis Method: Analysis Description: MAVPH (Prep) QC Prep:V29321 Associated Lab Samples: 98716, 98717, 98718 LRB-V29321 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 01/31/23 12:5950.011.5<11.5µg/LAliphatic C5-C8 01/31/23 12:5950.025.8<25.8µg/LAliphatic C9-C12 01/31/23 12:5950.04.02<4.02µg/LAromatic C9-C10 01/31/23 12:592,5-Dibromotoluene (FID) (S)97.3 70-130 01/31/23 12:592,5-Dibromotoluene (PID) (S)91.9 70-130 LCS-V29321 LCSD-V29321Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 324 108103309300µg/LAliphatic C5-C8 70-130 4.7 50.0 363 121123369300µg/LAliphatic C9-C12 70-130 1.6 50.0 108 108106106100µg/LAromatic C9-C10 70-130 1.8 50.0 87.278.92,5-Dibromotoluene (FID) (S)70-130 78.077.32,5-Dibromotoluene (PID) (S)70-130 Page 15 of 15Date:02/07/2023 06:41 PM Page 59 of 61 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-030-0031 Geological Resources, Inc. 00087 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 0.5C 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:01/30/2023 18:49:47 Special precautions or instructions included? Comments: Page 60 of 61 Page 61 of 61