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HomeMy WebLinkAboutWS-10181_45313_CA_LSA_20210215PHASE I LIMITED SITE ASSESSMENT REPORT WEST 70 CURB MARKET SITE 110 WOODLAWN ROAD MEBANE, ALAMANCE COUNTY, NORTH CAROLINA INCIDENT NO. 45313 FACILITY ID No. 00-0-000023230 Prepared For: Mr. Michael Tompkins McLeod Oil Company, Inc. P.O. Box 100 Mebane, North Carolina 27302 Prepared By: Progress Environmental Group, Inc. P.O. Box 5884 Winston-Salem, North Carolina 27113 Progress Project No. 1021014.001 February 9, 2021 P.O. Box 5884 Winston-Salem, North Carolina 27113 p. 336.722.9999 f. 336.722.9998 www.progressenvironmental.com February 9, 2021 Ms. Karen J. Hall North Carolina Department of Environmental Quality UST Section 450 West Hanes Mill Road, Suite 300 Winston-Salem, North Carolina 27105 Subject: Phase I Limited Site Assessment Report West 70 Curb Market Site 110 Woodlawn Road Mebane, Alamance County, North Carolina Progress Project No. 1021014.001 Incident No. 45313 Dear Ms. Hall: On behalf of McLeod Oil Company, Inc., Progress Environmental Group, Inc. (Progress) is submitting this Phase I Limited Site Assessment Report for the subject site. Included in this report is a description of the field activities, the results obtained, and our conclusions and recommendations. This Phase I Limited Site Assessment Report has been prepared in general accordance with the Underground Storage Tank Limited Site Assessment guidelines presented in the NCDEQ Guidelines for Assessment and Corrective Action dated January 19, 2021. We appreciate your consideration and cooperation in the submission of this report. If you have any questions concerning this report please feel free to contact us at (336) 722-9999. Sincerely, PROGRESS ENVIRONMENTAL GROUP, INC. Joseph S. Lawson III Jeffrey A. Ballsieper Director of Ecological Services Director of Environmental Services Licensed NC 1653 Attachments cc: Mr. Michael Tompkins, McLeod Oil Company, Inc. P.O. Box 5884 Winston-Salem, North Carolina 27113 p. 336.722.9999 f. 336.722.9998 www.progressenvironmental.com February 6, 2021 Mr. Michael Tompkins McLeod Oil Company, Inc. P.O. Box 100 Mebane, North Carolina 27302 Subject: Phase I Limited Site Assessment Report West 70 Curb Market Site 110 Woodlawn Road Mebane, Alamance County, North Carolina Progress Project No. 1021014.001 Incident N0. 45313 Dear Mr. Tompkins: Progress Environmental Group, Inc. (Progress) is pleased to submit this Phase I Limited Site Assessment Report for the West 70 Curb Market Site in Mebane, North Carolina. The objective of the assessment was to assess the potential risks to human health and the environment, and recommend whether additional assessment may be necessary at the site. This report is intended for the use of McLeod Oil Company, Inc., only. The contents should not be relied upon by other parties without the express written consent of Progress. The findings are relevant to the dates of our site work and should not be relied upon to represent site conditions on other dates. Progress appreciates the opportunity to provide our environmental services. If you have any questions or if we may be of further service, please contact the undersigned at (336) 722-9999. Sincerely, PROGRESS ENVIRONMENTAL GROUP, INC. Joseph S. Lawson III Jeffrey A. Ballsieper Director of Ecological Services Director of Environmental Services Licensed NC 1653 Attachment: Phase I Limited Site Assessment Report and Appendices Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 6, 2021 i TABLE OF CONTENTS A SITE IDENTIFICATION ....................................................................................................................... 1 B SITE HISTORY AND CHARACTERIZATION .................................................................................. 2 C RISK CHARACTERIZATION .............................................................................................................. 3 1 GROUNDWATER/SURFACE WATER/VAPOR IMPACTS .............................................................................. 3 2 LAND USE ............................................................................................................................................... 4 D RECEPTOR INFORMATION ............................................................................................................... 5 1 WATER-SUPPLY WELLS .......................................................................................................................... 5 2 PUBLIC WATER SUPPLIES ....................................................................................................................... 6 3 SURFACE WATER .................................................................................................................................... 6 4 WELLHEAD PROTECTION AREAS ........................................................................................................... 6 5 DEEP AQUIFERS IN THE COASTAL PLAIN PHYSIOGRAPHIC REGION ........................................................ 6 6 SUBSURFACE STRUCTURES ..................................................................................................................... 6 7 PROPERTY OWNERS AND OCCUPANTS .................................................................................................... 7 E SITE GEOLOGY AND HYDROGEOLOGY ....................................................................................... 7 F SAMPLING RESULTS ........................................................................................................................... 7 1 SOIL ........................................................................................................................................................ 7 2 GROUNDWATER ...................................................................................................................................... 8 G CONCLUSIONS AND RECOMMENDATIONS ................................................................................. 8 H FREE PRODUCT INVESTIGATION/RECOVERY ........................................................................... 9 I REFERENCES ......................................................................................................................................... 9 FIGURES Figure 1 – Topographic Site Map Figure 2 – Site Map Figure 3 – Surrounding Property Owners Map Figure 4 – Water-Supply Well Location Map Figure 5 – Zoning Map TABLES Table B-1 – Site History, UST/AST System Information Table B-2 – Site History, UST Owner/Operator Information Table B-4 – Summary of Detected Groundwater Analytical Results Table B-5 – Water Supply Well Information Table B-6 – Surrounding Property Owners Table B-7 – Well Construction Information APPENDICES Appendix A – Standard Sampling Procedures Appendix B – Sampling Sheet/Boring Log/Well Construction Record Appendix C – Returned Water-Supply Questionnaires Appendix D – Laboratory Test Reports and Chains-of-Custody Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 1 Phase I Limited Site Assessment Report A SITE IDENTIFICATION Date of Report: February 9, 2021 Facility I.D.: 00-0-0000023230 UST Incident Number (if known): 45313 Site Name: West 70 Curb Market Site Site Location: 110 Woodlawn Road, Mebane, North Carolina 27302 Nearest City/Town: Mebane, North Carolina County: Alamance UST Owner/Operator: McLeod Oil Company, Inc. Address: P.O. Box 100, Mebane, North Carolina 27302 Phone: (919) 563-3172 Property Owner: McLeod Oil Company, Inc. Address: P.O. Box 100, Mebane, North Carolina 27302 Phone: (919) 563-3172 Property Occupant: Unoccupied Address: P.O. Box 100, Mebane, North Carolina 27302 Phone: (919) 563-3172 Consultant/Contractor: Progress Environmental Group, Inc. Address: P.O. Box 5884, Winston-Salem, North Carolina 27113 Phone: (336) 722-9999 Attention: Mr. Jeffrey A. Ballsieper, L.G. Analytical Laboratory: Pace Analytical Laboratories, LLC Address: 9800 Kincey Avenue, Huntersville, North Carolina 27284 Phone: (704) 875-9092 Release Information Date Discovered: August 23, 2019 Latitude: N 36.098609 Longitude: W 79.283000 Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release (e.g., Piping/UST): Gasoline USTs Sizes and contents of UST system(s) from which the release occurred): One 4,000-gallon gasoline UST and one 1,000-gallon gasoline UST (Table B-1). Risk Classification: Undetermined Land Use Category: Industrial/Commercial I, Jeffrey A. Ballsieper, a Licensed Geologist for Progress Environmental Group, Inc., do certify that the information contained in this report is correct and accurate to the best of my knowledge. _____________________________________ Jeffrey A. Ballsieper, L.G. Director of Environmental Services Progress Environmental Group, Inc. is licensed to practice geology in North Carolina. The certification number of the corporation is C-552. Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 2 B SITE HISTORY AND CHARACTERIZATION Progress Environmental Group, Inc. (Progress) was contracted by McLeod Oil Company, Inc. to conduct underground storage tank (UST) closure activities at the West 70 Curb Market located at 110 Woodlawn Road in Mebane, Alamance County, North Carolina (Figure 1). The site consists of a former convenience store which stored petroleum products in USTs for retail sale. At the time of the removal the site was undergoing remodeling, and the USTs had not been used to store petroleum product since 2005. The site is located in a mixed use area of Mebane, including commercial, residential, and industrial uses.It is likely that the surrounding properties are served by the Town of Mebane municipal water-supply system. The closure activities included the removal of one 1,000- gallon gasoline UST and one 4,000-gallon gasoline UST and associated piping. Information regarding the on-site USTs is presented below: Table B-1 Site History, UST/AST System Information Tank No. Installation Date Capacity (gallons) Construction Materials Dimensions (inches) Removal Date Previous Contents 1 Unknown 1,000 Steel 46” x 144” 8/8/19 Gasoline 2 Unknown 4,000 Steel 64” x 285” 8/8/19 Gasoline Table B-2 Site History, UST Owner/Operator Information Owner’s Name Address Phone Number Dates of Ownership McLeod Oil Company, Inc. P.O. Box 100, Mebane, NC 27302 (919) 563-3172 1974-2019 Based on the results of the initial abatement activities, Progress concluded the following: Progress supervised the removal of one 1,000-gallon gasoline UST and one 4,000-gallon UST, and associated fuel dispensing lines from the subject site. Progress collected a total of five soil samples beneath the gasoline USTs (S-1 through S-5). Laboratory analysis of soil samples S-3 (23,500 mg/Kg) and S-4 (3,720 mg/Kg) collected beneath the USTs indicated Total Petroleum Hydrocarbons as Gasoline (TPH-G) concentrations in excess of the North Carolina Action Level. Progress collected a total of two soil samples beneath the dispensers (S-6 and S-7). Laboratory analysis of soil sample S-6 (1,720 mg/Kg) collected from beneath the northernmost dispenser indicated TPH-G concentrations in excess of the North Carolina Action Level. Progress collected one soil sample beneath the fuel distribution lines (S-8). Laboratory analysis of soil sample S-8 (2,740 mg/Kg) collected from beneath the fuel distribution lines indicated TPH-G concentrations in excess of the North Carolina Action Level. Based on the presence of notably contaminated soil, Progress supervised the over-excavation of contaminated soil beneath the USTs. Soil samples were screened using Redlabs mobile laboratory to complete the guided excavation. Approximately 484.07 tons of petroleum-impacted soil were excavated from the site and transported to an off-site permitted disposal facility. Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 3 Following the over-excavation of the contaminated soil, Progress screened the soil samples from the sidewalls of the excavation via Redlabs mobile laboratory. Each of the soil samples selected for laboratory analysis did not exhibit TPH as gasoline at concentrations exceeding the North Carolina Action Level when analyzed using the UVF Method. Progress collected confirmation soil samples from the sidewalls and base of the over-excavation. Prior to collecting the soil samples laboratory analysis of soil samples SW-1 and SW-6 collected from the sidewalls of the over- excavation did not detect targeted compounds above their respective Soil-to-Groundwater Maximum Soil Contaminant Concentrations (MSCCs) or Residential Soil Cleanup Levels. Laboratory analysis of soil samples SW-2 through SW-5 and SW-7 through SW-12 collected from the sidewalls and soil samples B-1 through B-4 collected from the base of the over-excavation detected at least one targeted compound above its respective Soil-to-Groundwater MSCC. C9-C10 Aromatics were detected in soil sample B-3 at a concentration that exceeds its Residential Soil Cleanup Level. C RISK CHARACTERIZATION 1 Groundwater/Surface Water/Vapor Impacts High Risk 1. Has the release contaminated any water-supply well including any well used for non- drinking purposes? UNKNOWN 2.Is a water-supply well used for drinking water located within 1,500 feet of the source area of the discharge or release? NO 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 groundwater 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 groundwater)? NO Public water is available in the vicinity of the site. 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? UNKNOWN 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 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? Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 4 8. Is the source area or release located within an approved or planned wellhead protection area as defined in 42 USC 300h-7(e)? NO 9.Is the release located in the Coastal Plain physiographic region as designated on a map entitled “Geology of North Carolina” published by the Department in 1985? NO 10.Do the levels of groundwater contamination for any contaminants exceed the gross contaminant levels (GCL) (see Table 9 of the New Guidelines) established by the Department? NO 2 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 Describe. The property is developed with a two story building that is currently unoccupied (Figure 2). 2. Does the property contain a school, daycare center, hospital, playground, park, recreation area, church, nursing home, or other place of public assembly? NO Describe. The property is developed with a two story building that is currently unoccupied. 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 Describe. The property is developed with a two story commercial building that is currently unoccupied. 4.Do children visit the property? NO Explain. The property is developed with a two story building that is currently unoccupied therefore, Progress would not expect children to visit the property regularly. 4.Is access to the property reliably restricted consistent with its use (e.g., fences, security personnel or both)? NO Explain. Access restrictions are not deemed necessary. 5.Do pavement, buildings, or other structures cap the contaminated soil? NO If yes, explain what mechanisms are in place or can be put into place to ensure that the contaminated soil will remain capped in the foreseeable future. Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 5 The contaminated soil is beneath an area that was uncovered during the UST closure activities. The disturbed area was formerly covered in asphalt pavement. 6. What is the zoning status of the property? The subject site is zoned General Business (B-2) (Figure 5). 7. Is the use of the property likely to change in the next 20 years? UNKNOWN Explain. Progress does not have knowledge of future development plans associated with the site. 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). 1. What is the distance from the source area of the release to the nearest primary or secondary residence (permanent or temporary)? The nearest occupied residence is located approximately 1,040 feet to the north-northwest of the source area. 2. What is the distance from the source area of the release to the nearest school, daycare center, hospital, playground, park, recreation area, church, nursing home or other place of public assembly? Progress identified the Mebane United Presbyterian Church located approximately 1,100 feet south of the site. 3. What is the zoning status of properties in the surrounding area? The surrounding properties in the area are predominately zoned as General Business (B-2), Residential (R-20), and Heavy Manufacturing (M-1), and Light Manufacturing (M-2). 5.Briefly characterize the use and activities of the land in the surrounding area. Land uses in the surrounding areas are commercial and rural residential. D RECEPTOR INFORMATION 1 Water-Supply Wells Progress mailed 73 water-supply well questionnaires to the property owners within a 1,000- foot radius of the site. 17 of the questionnaires have been completed and returned at the time of this report. Progress also completed a visual reconnaissance within 1,500 feet of the site. Progress identified evidence of two water-supply wells during the reconnaissance of accessible properties within 1,000 feet of the site or based on the returned questionnaires. One well located at 145 Woodlawn Road does not appear to be utilized for drinking and the property was confirmed to be connected to the Alamance-Orange Water System; however, a questionnaire was not returned from the owner of this property. A second well identified Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 6 at 168 Woodlawn Road was confirmed via conversation with the property owner to be used for irrigation and livestock watering. Each of the identified water-supply wells are located more than 500 feet from the source area. An additional out of use well was identified more than 1,000 feet from the source area and, therefore, was not included on Figure 4 or in Table B-5. Copies of the returned water-supply well questionnaires are included in Appendix D. Progress understands that public water is available in the vicinity of the site. 2 Public Water Supplies Are public water supplies available within 1,500 feet of the source are of the release? YES If yes, where is the location of the nearest public water line and the source(s) of the public water supply? The public water lines are located within the adjacent rights-of-way. Please note, properties proximal to the site are provided water by either the City of Mebane or the Alamance-Orange Water System. The source of drinking water in the City of Mebane is from the Graham-Mebane Reservoir (surface water supply). The Orange-Alamance Water System include Corporation Lake, four water-supply wells, and purchased water from the City of Burlington through the Town of Haw River. Lake Orange provides additional water during drought conditions. The water-supply wells associated with the Alamance-Orange water supply do not appear to be located proximal to the site. 3 Surface Water According to the USGS topographic map, an unnamed pond is located approximately 1,400 feet to the west-northwest of the source area. 4 Wellhead Protection Areas The source area is not located within an established wellhead protection area according to the North Carolina Well Head Protection Areas Map (https://www.arcgis.com/home/webmap/viewer.html?webmap=7492e0fe11874ccca699679 d03bc0751). 5 Deep Aquifers in the Coastal Plain Physiographic Region The subject site is located in the Piedmont Physiographic Province. 6 Subsurface Structures Overhead electrical and phone utility lines are located at the subject site. Subsurface water and septic lines are located at the site. Subsurface utilities (power and communication lines) were not identified proximal to the UST system. Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 7 7 Property Owners and Occupants MACMOM, LLC. currently owns the subject property. Adjacent properties are developed as commercial properties or are undeveloped. The names and addresses of the adjacent property owners are provided in Table B-6. E SITE GEOLOGY AND HYDROGEOLOGY According to the Geologic Map of North Carolina (1985), the subject property is situated in the Carolina Slate Belt of the Piedmont Physiographic Province of North Carolina. The site is located in an area underlain by intermediate metavolcanic rock characterized by metamorphosed andesitic tuffs and flows. In the Piedmont Physiographic Province, groundwater generally occurs under water-table conditions and is stored in the pore space between individual grains of residual soil and in the fractures within the underlying parent rock. Due to the intense shearing associated with the thrust faulting in the area, it can be expected that the fractures play a major role in the flow of groundwater in the subsurface. Recharge to the water table is primarily by precipitation infiltrating the upper soils and percolating downward, under the influence of gravity, to the groundwater table. Typically, the water table is not a level surface, but a subdued reflection of the land surface. However, the depth to the water table is not constant, and depends on many factors, which include the amount of rainfall, the permeability of the soil, and the amount of groundwater being pumped in the area. Based on our review of the topographic map and on-site observation, the site is located on a ridge. Groundwater generally flows in directions sub-parallel to the ground surface slopes and under the influence of gravity toward points of discharge such as creeks, swamps, drainage swales, or pumped groundwater wells. Based on topographic inference, groundwater beneath the site most likely flows to the west. Soil encountered during the UST removal included fine sandy silt. During the advancement of the soil boring to install the monitoring well, Progress consistently encountered fine sandy silt beneath the imported fill material (21 feet bls). Bedrock was not encountered during drilling activities. Groundwater was encountered at an approximate depth of 18 feet bls in the monitoring well installed on site. Groundwater flow beneath the site appears to be migrating to the west. An unnamed pond is located approximately 1,400 feet to the west of the source area (Figure 1). F SAMPLING RESULTS 1 Soil Based on the depth to groundwater being identified shallower than the former excavation of contaminated soil, Progress did not collect a soil sample for laboratory analysis as part of this assessment. Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 8 2 Groundwater On January 15, 2021 3D Environmental Investigations, LLC installed one, two-inch monitoring well (MW-1) to an approximate depth of 30 feet bls with 15 feet of 0.01 slotted Schedule 40 PVC screen using the hollow stem auger drilling method. Following proper well development and purging, Progress collected a groundwater sample from the monitoring well using a disposable bailer and new length of cord and transferred to the laboratory containers into a cooler packed with ice. The groundwater sample collected from monitoring well MW-1 was analyzed for volatile organic compounds (VOCs) using Standard Method 6200B, for ethylene dibromide using EPA Method 504.1, for lead using the Standard Method, and for volatile petroleum hydrocarbons using the Massachusetts Department of Environmental Protection (MADEP) Method. Laboratory analysis of the groundwater sample collected from monitoring well MW-1 detected benzene (4,380 µg/L), chloroform (78.5 µg/L), ethylbenzene (1,410 µg/L), di- isopropyl ether (317 µg/L), methyl tert-butyl ether (18,900 µg/L), toluene (14,300 µg/L), 1,2,4-trimethylbenzene (1,440 µg/L), total xylenes (7,660 µg/L), ethylene dibromide (1.1 µg/L), C5-C8 Aliphatics (57,100 µg/L), C9-C12 Aliphatics (22,000 µg/L), and C9-C10 Aromatics (6,350 µg/L) at concentrations exceeding their respective North Carolina 2L Groundwater Quality Standards (NC2LGWQS). Please note, none of the detected concentrations exceed the applicable Gross Contamination Levels (GCLs). Copies of the laboratory data sheet and chain-of-custody record are included in the Appendix D. The groundwater sample was collected using the methods described in Appendix A. G CONCLUSIONS AND RECOMMENDATIONS Based on the results of the receptor survey and groundwater sampling activities, Progress makes the following conclusions: 1.The site meets the criteria for a Low Risk site based on the absence of active water-supply wells being identified within 1,000 feet of the source area. The site is not located within a wellhead protection area. 2.Based on the depth to groundwater being identified shallower than the former excavation of contaminated soil, Progress did not collect a soil sample for laboratory analysis as part of this assessment. 3.Laboratory analysis of the groundwater sample collected from monitoring well MW-1 detected benzene (4,380 µg/L), chloroform (78.5 µg/L), ethylbenzene (1,410 µg/L), di- isopropyl ether (317 µg/L), methyl tert-butyl ether (18,900 µg/L), toluene (14,300 µg/L), 1,2,4-trimethylbenzene (1,440 µg/L), total xylenes (7,660 µg/L), ethylene dibromide (1.1 µg/L), C5-C8 Aliphatics (57,100 µg/L), C9-C12 Aliphatics (22,000 µg/L), and C9-C10 Aromatics (6,350 µg/L) at concentrations exceeding their respective NC2LGWQS. Please note, none of the detected concentrations exceed the applicable GCLs. Phase I Limited Site Assessment West 70 Curb Market Site 110 Woodlawn Road Mebane, North Carolina Progress Project No. 1021014.001 February 9, 2021 9 Progress recommends providing a copy of this report to the Winston-Salem Regional Office of the NCDEQ, Division of Waste Management, UST Section. H FREE PRODUCT INVESTIGATION/RECOVERY Free product was not detected in the monitoring well during the October 2020 sampling event. I REFERENCES North Carolina Department of Natural Resources and Community Development Geologic Map of North Carolina published 1985. Underground Storage Tank Section, North Carolina Department of Environment and Natural Resources, Guidelines for Assessment and Corrective Action for UST Releases, Effective January 19, 2021. UST Closure and Initial Abatement Action Report, prepared by Progress Environmental Group, Inc. and dated October 15, 2019. FIGURES Figure 1 Topographic Site Map West 70 Curb Market 110 Woodlawn Road Mebane, North Carolina P.O. Box 5884 Winston-Salem, NC 27113 Telephone: (336) 722-9999 Fax: (336) 722-9998 www.progressenvironmental.com Mebane, N.C. Date: 2019 United States Department of the Interior United States Geological Survey 7.5 Minute Series Topographic Map Contour Interval: 10 feet Approximate Scale: 1:24,000 Project: West 70 Curb Market Client: McLeod Oil Progress Job #: 1021014.001 Date: February 2021 Site UST LOCATION ESTIMATED PRODUCT LINE LOCATION SOIL SAMPLING LOCATION 1 2 3 4 5 86 7Former Dispenser Former Dispenser 4,000-Gallon Gasoline UST 1,000-Gallon Gasoline UST Limits of Excavation 15 ProgressENVIRONMENTAL GROUP, INC.JSLFEB 2021JABAS SHOWNFEB 2021Figure 2.SKFP.O. Box 5884WINSTON-SALEM, NORTH CAROLINA 27113PHONE 336.722.9999 FAX 336.722.9998FIGURE 2SITE MAPWEST 70 CURB MARKET110 WOODLAWN ROADMEBANE, NORTH CAROLINAPROJECT1021014.001MW-1 Figure 3 Surrounding Property Owners Map West 70 Curb Market 110 Woodlawn Road Mebane, North Carolina P.O. Box 5884 Winston-Salem, NC 27113 Telephone: (336) 722-9999 Fax: (336) 722-9998 www.progressenvironmental.com Mebane, N.C. Date: 2021 Alamance County GIS https://apps.alamance- nc.com/CountyGISMap/default.aspx Approximate Scale: Not to Scale Project: West 70 Curb Market Client: McLeod Oil Progress Job #: 1021014.001 Date: February 2021 Site ProgressENVIRONMENTAL GROUP, INC.JSL1021014.001FEB 2021JABAS SHOWNFEB 2021Figure 4.SKFP.O. Box 5884WINSTON-SALEM, NORTH CAROLINA 27113PHONE 336.722.9999 FAX 336.722.9998FIGURE 4WATER SUPPLY WELL LOCATION MAPWEST 70 CURB MARKET110 WOODLAWN ROADMEBANE, NORTH CAROLINAPROJECTWS-2 Approximate location of water-supply well not active WS-1 WS-2 Approximate location of water-supply well not used for drinkingWS-1 Location of an area of public assembly Figure 5 Zoning Map West 70 Curb Market 110 Woodlawn Road Mebane, North Carolina B-2 R-20 M-1 M-2 P.O. Box 5884 Winston-Salem, NC 27113 Telephone: (336) 722-9999 Fax: (336) 722-9998 www.progressenvironmental.com Mebane, N.C. Date: 2021 Alamance County GIS https://apps.alamance- nc.com/CountyGISMap/default.aspx Approximate Scale: Not to Scale Project: West 70 Curb Market Client: McLeod Oil Progress Job #: 1021014.001 Date: February 2021 Site TABLES Lead EDB Well Number Sampling Date MW-1 01/02/21 4,380 78.5 1,410 317 18,900 14,300 1,440 7,660 5.5 1.1 57,100 22,000 6,350 1 70 600 70 20 600 400 500 15 0.02 400 700 200 5,000 70,000 84,500 70,000 20,000 260,000 28,500 85,500 15,000 50 NS NS NS Notes: = Exceeds North Carolina 2L Groundwater Quality Standards (NC2LGWQS) = Exceeds Gross Contamination Levels (GCLs) Contaminant concentrations are reported in micrograms per liter (µg/L) NE = Not Established BQL = Below Quantitation Limts NT = Not Tested NS No Standard LeadEDBC5-C8 AliphaticsGCLs BenzeneContaminant of Concern NC2LGWQS IsopropyletherEthylbenzeneChloroformMethyl tert butyl etherMEBANE, ALAMANCE COUNTY, NORTH CAROLINA INCIDENT NO. 45313 TABLE B-4 SUMMARY OF DETECTED GROUNDWATER ANALYTICAL RESULTS PHASE I LSA REPORT WEST 70 CURB MARKET 110 WOODLAWN ROAD MADEP Method VPHAnalytical Method Toluene1,2,4-TrimethylbenzeneC9-C12 AliphaticsC9-C10 AromaticsTotal Xylenes MAP ID OWNER NAME SITE ADDRESS MAILING ADDRESS WELL USE CONNECTED TO PUBLIC WATER PUBLIC WATER AVAILABLE TO PROPERTY APPROXIMATE DISTANCE OF WELL FROM SOURCE AREA (FT.) 168 Woodlawn Road Mebane, North Carolina 27302 145 Woodlawn Road Wilmington, North Carolina 28405 Locations of water-suply wells are depicted on Figure 4 YES YES YESSandra Cook et al 140 Woodlawn Road Not For Drinking 510' WS-1 Joseph Combs 168 Woodlawn Road Irrigation/Livestock WS-2 YES MEBANE, ALAMANCE COUNTY, NORTH CAROLINA TABLE B-5 WATER-SUPPLY WELL INFORMATION - JANUARY 2021 PHASE I LIMITED SITE ASSESSMENT REPORT WEST 70 CURB MARKET 815' 110 WOODLAWN ROAD Map ID Name Property Address Mailing Address Map ID numbers are referenced to Figure 3 HOLT STREETYADKIN PRESY OF UN PRESBY CH P O BOX 557 MEBANE, NC 27302 P O BOX 100 MEBANE, NC 27302-010US HIGHWAY 70 528 N CARR ST MEBANE, NC 27302 133 WOODLAWN ROAD MEBANE, NC 27302 6630 NC 62 NORTH BURLINGTON, NC 27217 833 CENTER STREET MEBANE, NC 27302 PO BOX 88 MADISON, NC 27055 NOT PROVIDED 110 WOODLAWN ROAD MEBANE, NC 27302 165435 COOK ROY K III H & J MANAGEMENT INC165434 165403 MCLEOD OIL CO INC 165421 MEBANE FIRST PRESBYTERIAN CH 165424 HOLT STREET Site (165431)MACMOM, LLC INCIDENT NO. 45313 TABLE B-6 SURROUNDING PROPERTY OWNERS PHASE I LIMITED SITE ASSESSMENT REPORT WEST 70 CURB MARKET 110 WOODLAWN ROAD MEBANE, ALAMANCE COUNTY, NORTH CAROLINA Well Screened Total Depth to Relative Groundwater Monitoring Well Installation Diameter Interval Depth to Water Elevation Elevation ID Date (inches)(feet)(feet)(feet TOC) (feet TOC )**(feet) 1/15/2021 MW-1 1/15/2021 2 15-30 30 18.92 100.00 81.08 TABLE B-7 WELL CONSTRUCTION INFORMATION WEST 70 CURB MARKET NCDEQ INCIDENT NO.: 45313 PHASE I LIMITED SITE ASSESSMENT APPENDIX A STANDARD SAMPLING PROCEDURES EXHIBIT A Procedures for Developing the Monitoring Wells Well development will be performed no sooner than 24 hours after well construction is completed. Wells will be developed by bailing or pumping a minimum of five well-volumes of groundwater from the well. The turbidity, pH, specific conductivity, dissolved oxygen and temperature of the development water will be measured and recorded, and used as an indicator parameter to determine the completion of the development process. EXHIBIT B Procedures for Collecting Groundwater Samples Each well will be purged of three standing well volumes prior to sample collection to remove stagnant water from the well and well bore in an effort to collect samples that are representative of the water quality in the formation surrounding each well. Chemical preservatives, if applicable, will be added to sample bottles by the laboratory. Sample bottles will be labeled prior to sample collection. Sample bottles will be filled directly from the Teflon or disposable bailer. Volatile organic samples will be collected first. The pH, temperature, and specific conductance of the sample will be measured and recorded. These measurements will be taken from a sample deposited in a separate container. Visual characteristics of the sample, including insoluble materials, will be recorded. Caps will be secured on bottles, bottle will be placed in plastic bags and the bags will be sealed. Documentation, including Chain-of-Custody Record and laboratory analytical request form, will be completed for all samples. Samples will be packed in coolers with "bubble wrap" and ice packs for shipment. Chain-of-Custody Record and analytical request form will be placed inside cooler sealed with security tape. Samples will be shipped via overnight express to the analytical laboratory within 24 hours following collection. Laboratory will be advised of each sample shipment. APPENDIX B SAMPLING SHEET/BORING LOG/WELL CONSTRUCTION RECORD Remarks: Project Manager: J. Ballsieper Casing Diameter: Hole Diameter: 6.25"Start Date: 1/15/21 Date: February 2021 Location: Jonesville, NC Project: West 70 Curb Market Job No.: 1021014.001 Boring/Well ID: Geologist: 60 50 40 30 Drilling Method: Geoprobe - SSA 20 10 Sample ID Complete Date: 1/15/21 (feet)DepthRec/Adv(ppm)Blows (in)PIDGeologic Description LithologyWater TablePage 1 of 1 30 40 20 10 Well Diagram MW-1 60 50 Monitoring Well Installed to 30 feet bls 120 Fayette StreetWinston-Salem, North Carolina 27101(336) 722-9999 Gravel Ground Surface (17.0') #2Quartz Sand(15.0') 2"PVC Screen (15.0') 2"PVC Casing (4.0') GroutFill Material (9.0') Bentonite Orange brown finesandy silt (Petroleum Odors) APPENDIX C RETURNED WATER-SUPPLY WELL QUESTIONNAIRES APPENDIX D LABORATORY TEST REPORTS AND CHAINS-OF-CUSTODY #=CL# February 02, 2021 LIMS USE: FR - JEFF BALLSIEPER LIMS OBJECT ID: 92516967 92516967 Project: Pace Project No.: RE: Jeff Ballsieper Progress Environmental, Inc. 120 Fayette St. Winston Salem, NC 27101 West 70 Curb Market Dear Jeff Ballsieper: Enclosed are the analytical results for sample(s) received by the laboratory on January 15, 2021. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace National - Mt. Juliet • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Stephanie Knott stephanie.knott@pacelabs.com Project Manager 336-996-2841 Enclosures cc:Jay Lawson, Progressive Environmental Group REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 1 of 17 #=CP# CERTIFICATIONS Pace Project No.: Project: 92516967 West 70 Curb Market Pace Analytical Services National 12065 Lebanon Road, Mt. Juliet, TN 37122 Alabama Certification #: 40660 Alaska Certification 17-026 Arizona Certification #: AZ0612 Arkansas Certification #: 88-0469 California Certification #: 2932 Canada Certification #: 1461.01 Colorado Certification #: TN00003 Connecticut Certification #: PH-0197 DOD Certification: #1461.01 EPA# TN00003 Florida Certification #: E87487 Georgia DW Certification #: 923 Georgia Certification: NELAP Idaho Certification #: TN00003 Illinois Certification #: 200008 Indiana Certification #: C-TN-01 Iowa Certification #: 364 Kansas Certification #: E-10277 Kentucky UST Certification #: 16 Kentucky Certification #: 90010 Louisiana Certification #: AI30792 Louisiana DW Certification #: LA180010 Maine Certification #: TN0002 Maryland Certification #: 324 Massachusetts Certification #: M-TN003 Michigan Certification #: 9958 Minnesota Certification #: 047-999-395 Mississippi Certification #: TN00003 Missouri Certification #: 340 Montana Certification #: CERT0086 Nebraska Certification #: NE-OS-15-05 Nevada Certification #: TN-03-2002-34 New Hampshire Certification #: 2975 New Jersey Certification #: TN002 New Mexico DW Certification New York Certification #: 11742 North Carolina Aquatic Toxicity Certification #: 41 North Carolina Drinking Water Certification #: 21704 North Carolina Environmental Certificate #: 375 North Dakota Certification #: R-140 Ohio VAP Certification #: CL0069 Oklahoma Certification #: 9915 Oregon Certification #: TN200002 Pennsylvania Certification #: 68-02979 Rhode Island Certification #: LAO00356 South Carolina Certification #: 84004 South Dakota Certification Tennessee DW/Chem/Micro Certification #: 2006 Texas Certification #: T 104704245-17-14 Texas Mold Certification #: LAB0152 USDA Soil Permit #: P330-15-00234 Utah Certification #: TN00003 Vermont Dept. of Health: ID# VT-2006 Virginia Certification #: VT2006 Virginia Certification #: 460132 Washington Certification #: C847 West Virginia Certification #: 233 Wisconsin Certification #: 998093910 Wyoming UST Certification #: via A2LA 2926.01 A2LA-ISO 17025 Certification #: 1461.01 A2LA-ISO 17025 Certification #: 1461.02 AIHA-LAP/LLC EMLAP Certification #:100789 Pace Analytical Services Charlotte 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 2 of 17 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92516967 West 70 Curb Market Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92516967001 MW-1 EPA 504.1 4 PASI-CJMS1 MADEP VPH 6 PANACG EPA 200.7 Rev 4.4 1994 1 PASI-ABG2 SM 6200B 69 PASI-CPM1 PAN = Pace National - Mt. Juliet PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 3 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92516967 West 70 Curb Market Sample:MW-1 Lab ID:92516967001 Collected:01/15/21 11:45 Received:01/15/21 16:29 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit Analytical Method: EPA 504.1 Preparation Method: EPA 504.1 Pace Analytical Services - Charlotte 504 GCS EDB and DBCP 1,2-Dibromo-3-chloropropane ND ug/L 01/21/21 11:32 96-12-801/20/21 09:220.10 2 1,2-Dibromoethane (EDB)1.1 ug/L 01/21/21 11:32 106-93-401/20/21 09:220.042 2 1,2,3-Trichloropropane ND ug/L 01/21/21 11:32 96-18-401/20/21 09:220.10 2 Surrogates 1-Chloro-2-bromopropane (S)134 %01/21/21 11:32 301-79-56 S501/20/21 09:2270-130 2 Analytical Method: MADEP VPH Preparation Method: MADEPV Pace National - Mt. Juliet MADEPV Aliphatic (C05-C08)57100 ug/L 01/27/21 22:4801/27/21 22:48100010 Aliphatic (C09-C12)22000 ug/L 01/27/21 22:4801/27/21 22:48100010 Aromatic (C09-C10),Unadjusted 6350 ug/L 01/27/21 22:48 TPHC9C10A01/27/21 22:48100010 Total VPH 85500 ug/L 01/27/21 22:48 VPH01/27/21 22:48100010 Surrogates 2,5-Dibromotoluene (FID)96.7 %01/27/21 22:48 615-59-8FID01/27/21 22:4870.0-130 10 2,5-Dibromotoluene (PID)87.1 %01/27/21 22:48 615-59-8PID01/27/21 22:4870.0-130 10 Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994 Pace Analytical Services - Asheville 200.7 MET ICP Lead 5.5 ug/L 01/21/21 16:15 7439-92-101/21/21 01:565.0 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV tert-Amyl Alcohol ND ug/L 01/22/21 18:15 75-85-412500125 tert-Amylmethyl ether ND ug/L 01/22/21 18:15 994-05-81250125 Benzene 4380 ug/L 01/22/21 18:15 71-43-262.5 125 Bromobenzene ND ug/L 01/22/21 18:15 108-86-162.5 125 Bromochloromethane ND ug/L 01/22/21 18:15 74-97-562.5 125 Bromodichloromethane ND ug/L 01/22/21 18:15 75-27-462.5 125 Bromoform ND ug/L 01/22/21 18:15 75-25-262.5 125 Bromomethane ND ug/L 01/22/21 18:15 74-83-9625125 tert-Butyl Alcohol ND ug/L 01/22/21 18:15 75-65-02500125 n-Butylbenzene ND ug/L 01/22/21 18:15 104-51-862.5 125 sec-Butylbenzene ND ug/L 01/22/21 18:15 135-98-862.5 125 tert-Butylbenzene ND ug/L 01/22/21 18:15 98-06-662.5 125 tert-Butyl Formate ND ug/L 01/22/21 18:15 762-75-42500125 Carbon tetrachloride ND ug/L 01/22/21 18:15 56-23-562.5 125 Chlorobenzene ND ug/L 01/22/21 18:15 108-90-762.5 125 Chloroethane ND ug/L 01/22/21 18:15 75-00-3125125 Chloroform 78.5 ug/L 01/22/21 18:15 67-66-362.5 125 Chloromethane ND ug/L 01/22/21 18:15 74-87-3125125 2-Chlorotoluene ND ug/L 01/22/21 18:15 95-49-862.5 125 4-Chlorotoluene ND ug/L 01/22/21 18:15 106-43-462.5 125 1,2-Dibromo-3-chloropropane ND ug/L 01/22/21 18:15 96-12-8125125 Dibromochloromethane ND ug/L 01/22/21 18:15 124-48-162.5 125 1,2-Dibromoethane (EDB)ND ug/L 01/22/21 18:15 106-93-462.5 125 Dibromomethane ND ug/L 01/22/21 18:15 74-95-362.5 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 4 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92516967 West 70 Curb Market Sample:MW-1 Lab ID:92516967001 Collected:01/15/21 11:45 Received:01/15/21 16:29 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualReport Limit Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV 1,2-Dichlorobenzene ND ug/L 01/22/21 18:15 95-50-162.5 125 1,3-Dichlorobenzene ND ug/L 01/22/21 18:15 541-73-162.5 125 1,4-Dichlorobenzene ND ug/L 01/22/21 18:15 106-46-762.5 125 Dichlorodifluoromethane ND ug/L 01/22/21 18:15 75-71-862.5 125 1,1-Dichloroethane ND ug/L 01/22/21 18:15 75-34-362.5 125 1,2-Dichloroethane ND ug/L 01/22/21 18:15 107-06-262.5 125 1,1-Dichloroethene ND ug/L 01/22/21 18:15 75-35-462.5 125 cis-1,2-Dichloroethene ND ug/L 01/22/21 18:15 156-59-262.5 125 trans-1,2-Dichloroethene ND ug/L 01/22/21 18:15 156-60-562.5 125 1,2-Dichloropropane ND ug/L 01/22/21 18:15 78-87-562.5 125 1,3-Dichloropropane ND ug/L 01/22/21 18:15 142-28-962.5 125 2,2-Dichloropropane ND ug/L 01/22/21 18:15 594-20-762.5 125 1,1-Dichloropropene ND ug/L 01/22/21 18:15 563-58-662.5 125 cis-1,3-Dichloropropene ND ug/L 01/22/21 18:15 10061-01-562.5 125 trans-1,3-Dichloropropene ND ug/L 01/22/21 18:15 10061-02-662.5 125 Diisopropyl ether 317 ug/L 01/22/21 18:15 108-20-362.5 125 Ethanol ND ug/L 01/22/21 18:15 64-17-525000125 Ethylbenzene 1410 ug/L 01/22/21 18:15 100-41-462.5 125 Ethyl-tert-butyl ether ND ug/L 01/22/21 18:15 637-92-31250125 Hexachloro-1,3-butadiene ND ug/L 01/22/21 18:15 87-68-3250125 Isopropylbenzene (Cumene)ND ug/L 01/22/21 18:15 98-82-862.5 125 Methylene Chloride ND ug/L 01/22/21 18:15 75-09-2250125 Methyl-tert-butyl ether 18900 ug/L 01/22/21 18:15 1634-04-462.5 125 Naphthalene ND ug/L 01/22/21 18:15 91-20-3250125 n-Propylbenzene ND ug/L 01/22/21 18:15 103-65-162.5 125 Styrene ND ug/L 01/22/21 18:15 100-42-562.5 125 1,1,1,2-Tetrachloroethane ND ug/L 01/22/21 18:15 630-20-662.5 125 1,1,2,2-Tetrachloroethane ND ug/L 01/22/21 18:15 79-34-562.5 125 Tetrachloroethene ND ug/L 01/22/21 18:15 127-18-462.5 125 Toluene 14300 ug/L 01/22/21 18:15 108-88-362.5 125 1,2,3-Trichlorobenzene ND ug/L 01/22/21 18:15 87-61-6250125 1,2,4-Trichlorobenzene ND ug/L 01/22/21 18:15 120-82-1250125 1,1,1-Trichloroethane ND ug/L 01/22/21 18:15 71-55-662.5 125 1,1,2-Trichloroethane ND ug/L 01/22/21 18:15 79-00-562.5 125 Trichloroethene ND ug/L 01/22/21 18:15 79-01-662.5 125 Trichlorofluoromethane ND ug/L 01/22/21 18:15 75-69-4125125 1,2,3-Trichloropropane ND ug/L 01/22/21 18:15 96-18-462.5 125 1,2,4-Trimethylbenzene 1440 ug/L 01/22/21 18:15 95-63-662.5 125 1,3,5-Trimethylbenzene ND ug/L 01/22/21 18:15 108-67-862.5 125 Vinyl chloride ND ug/L 01/22/21 18:15 75-01-4125125 m&p-Xylene 4760 ug/L 01/22/21 18:15 179601-23-1125125 o-Xylene 2900 ug/L 01/22/21 18:15 95-47-662.5 125 Surrogates 1,2-Dichloroethane-d4 (S)91 %01/22/21 18:15 17060-07-070-130 125 4-Bromofluorobenzene (S)93 %01/22/21 18:15 460-00-470-130 125 Toluene-d8 (S)100 %01/22/21 18:15 2037-26-570-130 125 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 5 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92516967 West 70 Curb Market Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 1611496 MADEPV MADEP VPH MADEPV Laboratory:Pace National - Mt. Juliet Associated Lab Samples:92516967001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:R3616425-3 Associated Lab Samples:92516967001 Matrix:Water Analyzed Aliphatic (C05-C08)ug/L ND 100 01/26/21 13:38 Aliphatic (C09-C12)ug/L ND 100 01/26/21 13:38 Aromatic (C09-C10),Unadjusted ug/L ND 100 01/26/21 13:38 Total VPH ug/L ND 100 01/26/21 13:38 2,5-Dibromotoluene (FID)%79.9 70.0-130 01/26/21 13:38 2,5-Dibromotoluene (PID)%70.7 70.0-130 01/26/21 13:38 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. R3616425-1LABORATORY CONTROL SAMPLE & LCSD: LCSSpike LCSD % Rec RPD Max RPD LCSD Result R3616425-2 Aliphatic (C05-C08)ug/L 12201200 102 70.0-1301021220 0.00 25 Aliphatic (C09-C12)ug/L 14601400 104 70.0-1301041450 0.687 25 Aromatic (C09-C10),Unadjusted ug/L 185200 92.5 70.0-13092.5185 0.00 25 Total VPH ug/L 28702800 103 70.0-1301022860 0.349 25 2,5-Dibromotoluene (FID)%86.2 70.0-13084.8 2,5-Dibromotoluene (PID)%76.9 70.0-13075.7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 6 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92516967 West 70 Curb Market Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 594211 EPA 200.7 Rev 4.4 1994 EPA 200.7 Rev 4.4 1994 200.7 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92516967001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3135373 Associated Lab Samples:92516967001 Matrix:Water Analyzed Lead ug/L ND 5.0 01/21/21 15:59 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3135374LABORATORY CONTROL SAMPLE: LCSSpike Lead ug/L 475500 95 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 3135375MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92517248001 3135376 MSD Result MSD % Rec RPD MSDMS Spike Conc. Lead ug/L 500 100 70-130101 2500ND500509 Parameter Units MS Result % Rec Limits Qual% RecConc. 3135377MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92517313002 3135378 MSD Result MSD % Rec RPD MSDMS Spike Conc. Lead ug/L 500 102 70-130102 0500ND510512 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 7 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92516967 West 70 Curb Market Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 594725 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92516967001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3137739 Associated Lab Samples:92516967001 Matrix:Water Analyzed 1,1,1,2-Tetrachloroethane ug/L ND 0.50 01/22/21 13:13 1,1,1-Trichloroethane ug/L ND 0.50 01/22/21 13:13 1,1,2,2-Tetrachloroethane ug/L ND 0.50 01/22/21 13:13 1,1,2-Trichloroethane ug/L ND 0.50 01/22/21 13:13 1,1-Dichloroethane ug/L ND 0.50 01/22/21 13:13 1,1-Dichloroethene ug/L ND 0.50 01/22/21 13:13 1,1-Dichloropropene ug/L ND 0.50 01/22/21 13:13 1,2,3-Trichlorobenzene ug/L ND 2.0 01/22/21 13:13 1,2,3-Trichloropropane ug/L ND 0.50 01/22/21 13:13 1,2,4-Trichlorobenzene ug/L ND 2.0 01/22/21 13:13 1,2,4-Trimethylbenzene ug/L ND 0.50 01/22/21 13:13 1,2-Dibromo-3-chloropropane ug/L ND 1.0 01/22/21 13:13 1,2-Dibromoethane (EDB)ug/L ND 0.50 01/22/21 13:13 1,2-Dichlorobenzene ug/L ND 0.50 01/22/21 13:13 1,2-Dichloroethane ug/L ND 0.50 01/22/21 13:13 1,2-Dichloropropane ug/L ND 0.50 01/22/21 13:13 1,3,5-Trimethylbenzene ug/L ND 0.50 01/22/21 13:13 1,3-Dichlorobenzene ug/L ND 0.50 01/22/21 13:13 1,3-Dichloropropane ug/L ND 0.50 01/22/21 13:13 1,4-Dichlorobenzene ug/L ND 0.50 01/22/21 13:13 2,2-Dichloropropane ug/L ND 0.50 01/22/21 13:13 2-Chlorotoluene ug/L ND 0.50 01/22/21 13:13 4-Chlorotoluene ug/L ND 0.50 01/22/21 13:13 Benzene ug/L ND 0.50 01/22/21 13:13 Bromobenzene ug/L ND 0.50 01/22/21 13:13 Bromochloromethane ug/L ND 0.50 01/22/21 13:13 Bromodichloromethane ug/L ND 0.50 01/22/21 13:13 Bromoform ug/L ND 0.50 01/22/21 13:13 Bromomethane ug/L ND 5.0 01/22/21 13:13 Carbon tetrachloride ug/L ND 0.50 01/22/21 13:13 Chlorobenzene ug/L ND 0.50 01/22/21 13:13 Chloroethane ug/L ND 1.0 01/22/21 13:13 Chloroform ug/L ND 0.50 01/22/21 13:13 Chloromethane ug/L ND 1.0 01/22/21 13:13 cis-1,2-Dichloroethene ug/L ND 0.50 01/22/21 13:13 cis-1,3-Dichloropropene ug/L ND 0.50 01/22/21 13:13 Dibromochloromethane ug/L ND 0.50 01/22/21 13:13 Dibromomethane ug/L ND 0.50 01/22/21 13:13 Dichlorodifluoromethane ug/L ND 0.50 01/22/21 13:13 Diisopropyl ether ug/L ND 0.50 01/22/21 13:13 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 8 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92516967 West 70 Curb Market Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3137739 Associated Lab Samples:92516967001 Matrix:Water Analyzed Ethanol ug/L ND 200 01/22/21 13:13 Ethyl-tert-butyl ether ug/L ND 10.0 01/22/21 13:13 Ethylbenzene ug/L ND 0.50 01/22/21 13:13 Hexachloro-1,3-butadiene ug/L ND 2.0 01/22/21 13:13 Isopropylbenzene (Cumene)ug/L ND 0.50 01/22/21 13:13 m&p-Xylene ug/L ND 1.0 01/22/21 13:13 Methyl-tert-butyl ether ug/L ND 0.50 01/22/21 13:13 Methylene Chloride ug/L ND 2.0 01/22/21 13:13 n-Butylbenzene ug/L ND 0.50 01/22/21 13:13 n-Propylbenzene ug/L ND 0.50 01/22/21 13:13 Naphthalene ug/L ND 2.0 01/22/21 13:13 o-Xylene ug/L ND 0.50 01/22/21 13:13 sec-Butylbenzene ug/L ND 0.50 01/22/21 13:13 Styrene ug/L ND 0.50 01/22/21 13:13 tert-Amyl Alcohol ug/L ND 100 01/22/21 13:13 tert-Amylmethyl ether ug/L ND 10.0 01/22/21 13:13 tert-Butyl Alcohol ug/L ND 20.0 01/22/21 13:13 tert-Butyl Formate ug/L ND 20.0 01/22/21 13:13 tert-Butylbenzene ug/L ND 0.50 01/22/21 13:13 Tetrachloroethene ug/L ND 0.50 01/22/21 13:13 Toluene ug/L ND 0.50 01/22/21 13:13 trans-1,2-Dichloroethene ug/L ND 0.50 01/22/21 13:13 trans-1,3-Dichloropropene ug/L ND 0.50 01/22/21 13:13 Trichloroethene ug/L ND 0.50 01/22/21 13:13 Trichlorofluoromethane ug/L ND 1.0 01/22/21 13:13 Vinyl chloride ug/L ND 1.0 01/22/21 13:13 1,2-Dichloroethane-d4 (S)%95 70-130 01/22/21 13:13 4-Bromofluorobenzene (S)%102 70-130 01/22/21 13:13 Toluene-d8 (S)%102 70-130 01/22/21 13:13 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3137740LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 52.350 105 60-140 1,1,1-Trichloroethane ug/L 46.050 92 60-140 1,1,2,2-Tetrachloroethane ug/L 47.750 95 60-140 1,1,2-Trichloroethane ug/L 49.450 99 60-140 1,1-Dichloroethane ug/L 44.250 88 60-140 1,1-Dichloroethene ug/L 44.450 89 60-140 1,1-Dichloropropene ug/L 45.850 92 60-140 1,2,3-Trichlorobenzene ug/L 56.550 113 60-140 1,2,3-Trichloropropane ug/L 47.750 95 60-140 1,2,4-Trichlorobenzene ug/L 56.250 112 60-140 1,2,4-Trimethylbenzene ug/L 51.050 102 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 9 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92516967 West 70 Curb Market Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3137740LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dibromo-3-chloropropane ug/L 54.750 109 60-140 1,2-Dibromoethane (EDB)ug/L 47.850 96 60-140 1,2-Dichlorobenzene ug/L 59.550 119 60-140 1,2-Dichloroethane ug/L 45.550 91 60-140 1,2-Dichloropropane ug/L 46.650 93 60-140 1,3,5-Trimethylbenzene ug/L 51.250 102 60-140 1,3-Dichlorobenzene ug/L 50.550 101 60-140 1,3-Dichloropropane ug/L 45.450 91 60-140 1,4-Dichlorobenzene ug/L 49.550 99 60-140 2,2-Dichloropropane ug/L 48.150 96 60-140 2-Chlorotoluene ug/L 53.450 107 60-140 4-Chlorotoluene ug/L 48.750 97 60-140 Benzene ug/L 47.050 94 60-140 Bromobenzene ug/L 59.650 119 60-140 Bromochloromethane ug/L 43.150 86 60-140 Bromodichloromethane ug/L 45.950 92 60-140 Bromoform ug/L 46.950 94 60-140 Bromomethane ug/L 49.850 100 60-140 Carbon tetrachloride ug/L 48.750 97 60-140 Chlorobenzene ug/L 49.950 100 60-140 Chloroethane ug/L 41.150 82 60-140 Chloroform ug/L 45.350 91 60-140 Chloromethane ug/L 36.150 72 60-140 cis-1,2-Dichloroethene ug/L 41.950 84 60-140 cis-1,3-Dichloropropene ug/L 48.050 96 60-140 Dibromochloromethane ug/L 49.050 98 60-140 Dibromomethane ug/L 47.150 94 60-140 Dichlorodifluoromethane ug/L 42.550 85 60-140 Diisopropyl ether ug/L 41.750 83 60-140 Ethanol ug/L 18002000 90 60-140 Ethyl-tert-butyl ether ug/L 97.8100 98 60-140 Ethylbenzene ug/L 50.450 101 60-140 Hexachloro-1,3-butadiene ug/L 52.650 105 60-140 Isopropylbenzene (Cumene)ug/L 46.250 92 60-140 m&p-Xylene ug/L 95.0100 95 60-140 Methyl-tert-butyl ether ug/L 46.750 93 60-140 Methylene Chloride ug/L 41.450 83 60-140 n-Butylbenzene ug/L 54.250 108 60-140 n-Propylbenzene ug/L 52.850 106 60-140 Naphthalene ug/L 56.950 114 60-140 o-Xylene ug/L 42.650 85 60-140 sec-Butylbenzene ug/L 51.950 104 60-140 Styrene ug/L 43.350 87 60-140 tert-Amyl Alcohol ug/L 10801000 108 60-140 tert-Amylmethyl ether ug/L 102100 102 60-140 tert-Butyl Alcohol ug/L 476500 95 60-140 tert-Butyl Formate ug/L 424400 106 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 10 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92516967 West 70 Curb Market Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3137740LABORATORY CONTROL SAMPLE: LCSSpike tert-Butylbenzene ug/L 44.250 88 60-140 Tetrachloroethene ug/L 46.550 93 60-140 Toluene ug/L 44.650 89 60-140 trans-1,2-Dichloroethene ug/L 44.250 88 60-140 trans-1,3-Dichloropropene ug/L 50.550 101 60-140 Trichloroethene ug/L 46.150 92 60-140 Trichlorofluoromethane ug/L 41.150 82 60-140 Vinyl chloride ug/L 36.650 73 60-140 1,2-Dichloroethane-d4 (S)%97 70-130 4-Bromofluorobenzene (S)%107 70-130 Toluene-d8 (S)%98 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 3137741MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92517919008 3137742 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 4000 112 60-140115 34000ND44704590 1,1,1-Trichloroethane ug/L 4000 92 60-14090 34000ND36903580 1,1,2,2-Tetrachloroethane ug/L 4000 110 60-140108 24000ND44104330 1,1,2-Trichloroethane ug/L 4000 100 60-140103 34000ND40204140 1,1-Dichloroethane ug/L 4000 83 60-14084 14000ND33403370 1,1-Dichloroethene ug/L 4000 64 60-14065 24000ND25702620 1,1-Dichloropropene ug/L 4000 82 60-14083 14000ND32803310 1,2,3-Trichlorobenzene ug/L 4000 108 60-140113 54000ND43104520 1,2,3-Trichloropropane ug/L 4000 105 60-140106 04000ND42204230 1,2,4-Trichlorobenzene ug/L 4000 106 60-140109 34000ND42504370 1,2,4-Trimethylbenzene ug/L 4000 112 60-140117 34000122057105890 1,2-Dibromo-3-chloropropane ug/L 4000 110 60-140115 44000ND44204620 1,2-Dibromoethane (EDB)ug/L 4000 110 60-140110 0400013645404540 1,2-Dichlorobenzene ug/L 4000 114 60-140116 24000ND45504640 1,2-Dichloroethane ug/L 4000 90 60-14092 2400029539103990 1,2-Dichloropropane ug/L 4000 98 60-14098 04000ND39403940 1,3,5-Trimethylbenzene ug/L 4000 118 60-140119 14000ND47204760 1,3-Dichlorobenzene ug/L 4000 110 60-140111 14000ND44004450 1,3-Dichloropropane ug/L 4000 105 60-140105 04000ND41804190 1,4-Dichlorobenzene ug/L 4000 109 60-140111 24000ND43604440 2,2-Dichloropropane ug/L M140002060-14018 124000ND820731 2-Chlorotoluene ug/L 4000 111 60-140115 44000ND44204590 4-Chlorotoluene ug/L 4000 108 60-140110 14000ND43404390 Benzene ug/L 4000 90 60-140116 54000166002020021300 Bromobenzene ug/L 4000 114 60-140114 04000ND45704560 Bromochloromethane ug/L 4000 90 60-14087 34000ND36003480 Bromodichloromethane ug/L 4000 99 60-14098 14000ND39603930 Bromoform ug/L 4000 112 60-140115 34000ND44804600 Bromomethane ug/L M140004860-14041 164000ND19401650 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 11 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92516967 West 70 Curb Market Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 3137741MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92517919008 3137742 MSD Result MSD % Rec RPD MSDMS Spike Conc. Carbon tetrachloride ug/L 4000 98 60-14092 74000ND39303670 Chlorobenzene ug/L 4000 109 60-140109 04000ND43704370 Chloroethane ug/L M140003860-14040 64000ND15301610 Chloroform ug/L 4000 90 60-14088 24000ND36103520 Chloromethane ug/L M140001860-14017 54000ND708672 cis-1,2-Dichloroethene ug/L 4000 88 60-14086 24000ND35203440 cis-1,3-Dichloropropene ug/L 4000 80 60-14079 14000ND32003160 Dibromochloromethane ug/L 4000 114 60-140115 24000ND45504610 Dibromomethane ug/L 4000 101 60-140100 14000ND40204000 Dichlorodifluoromethane ug/L M14000060-14014000NDNDND Diisopropyl ether ug/L 4000 86 60-14087 14000ND34603490 Ethanol ug/L 160000 81 60-14075 7160000ND129000121000 Ethyl-tert-butyl ether ug/L 8000 94 60-14094 08000ND75307550 Ethylbenzene ug/L 4000 111 60-140116 34000188063306520 Hexachloro-1,3-butadiene ug/L 4000 100 60-140100 04000ND40104000 Isopropylbenzene (Cumene)ug/L 4000 113 60-140114 24000ND45004570 m&p-Xylene ug/L 8000 114 60-140124 5800057001490015600 Methyl-tert-butyl ether ug/L 4000 88 60-14085 44000ND35303390 Methylene Chloride ug/L 4000 77 60-14076 24000ND30803030 n-Butylbenzene ug/L 4000 101 60-140102 14000ND40304080 n-Propylbenzene ug/L 4000 109 60-140112 24000ND43704470 Naphthalene ug/L 4000 113 60-140119 5400058551205360 o-Xylene ug/L 4000 120 60-140127 44000312079108210 sec-Butylbenzene ug/L 4000 108 60-140112 44000ND43104490 Styrene ug/L 4000 115 60-140114 14000ND46204560 tert-Amyl Alcohol ug/L 80000 109 60-140114 48000013200J100000105000 tert-Amylmethyl ether ug/L 8000 98 60-14096 28000ND78607690 tert-Butyl Alcohol ug/L 40000 102 60-140105 340000ND4100042100 tert-Butyl Formate ug/L 32000 92 60-14090 232000ND2930028800 tert-Butylbenzene ug/L 4000 96 60-14099 34000ND38503980 Tetrachloroethene ug/L 4000 103 60-140100 34000ND41203980 Toluene ug/L M1400010360-140144 64000245002860030300 trans-1,2-Dichloroethene ug/L 4000 75 60-14075 04000ND30003010 trans-1,3-Dichloropropene ug/L 4000 78 60-14081 34000ND31203220 Trichloroethene ug/L 4000 98 60-14094 44000ND39203770 Trichlorofluoromethane ug/L M140004760-14049 44000ND19001960 Vinyl chloride ug/L M140001660-14016 34000ND623640 1,2-Dichloroethane-d4 (S)%101 70-13099 4-Bromofluorobenzene (S)%99 70-130100 Toluene-d8 (S)%99 70-13097 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 12 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92516967 West 70 Curb Market Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 593942 EPA 504.1 EPA 504.1 GCS 504 EDB DBCP Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92516967001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:3133834 Associated Lab Samples:92516967001 Matrix:Water Analyzed 1,2,3-Trichloropropane ug/L ND 0.050 01/20/21 11:07 1,2-Dibromo-3-chloropropane ug/L ND 0.050 01/20/21 11:07 1,2-Dibromoethane (EDB)ug/L ND 0.020 01/20/21 11:07 1-Chloro-2-bromopropane (S)%94 70-130 01/20/21 11:07 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 3133835LABORATORY CONTROL SAMPLE & LCSD: LCSSpike LCSD % Rec RPD Max RPD LCSD Result 3133836 1,2,3-Trichloropropane ug/L 0.320.25 128 70-1301120.28 13 20 1,2-Dibromo-3-chloropropane ug/L 0.260.25 105 70-130970.24 8 20 1,2-Dibromoethane (EDB)ug/L 0.230.25 94 70-130940.23 0 20 1-Chloro-2-bromopropane (S)%98 70-13093 Parameter Units MS Result % Rec Limits Qual% RecConc. 3133838MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92517285009 3133839 MSD Result MSD % Rec RPD MSDMS Spike Conc. 1,2,3-Trichloropropane ug/L M10.25 246 65-135257 40.25<14.7 0.62 0.65 1,2-Dibromo-3-chloropropane ug/L M10.25 1440 65-1351470 20.25<50.7 3.6 3.7 1,2-Dibromoethane (EDB)ug/L M10.25 -80700 65-135-81700 00.25806 603 601 1-Chloro-2-bromopropane (S)%S244470-130441 Parameter Units Dup Result QualifiersRPDResult 92515931001 3133837SAMPLE DUPLICATE: 1,2,3-Trichloropropane ug/L NDND 1,2-Dibromo-3-chloropropane ug/L NDND 1,2-Dibromoethane (EDB)ug/L NDND 1-Chloro-2-bromopropane (S)%112121 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 13 of 17 #=QL# QUALIFIERS Pace Project No.: Project: 92516967 West 70 Curb Market DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 Surrogate recovery outside laboratory control limits due to matrix interferences (confirmed by similar results from sample re-analysis).S2 Surrogate recovery outside control limits due to matrix interferences (not confirmed by re-analysis).S5 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 14 of 17 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92516967 West 70 Curb Market Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92516967001 593942 594020MW-1 EPA 504.1 EPA 504.1 92516967001 1611496 1611496MW-1 MADEPV MADEP VPH 92516967001 594211 594252MW-1 EPA 200.7 Rev 4.4 1994 EPA 200.7 Rev 4.4 1994 92516967001 594725MW-1 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 02/02/2021 06:39 PM Pace Analytical Services, LLC 106 Short St. Kernersville, NC 27284 336-996-2841 Page 15 of 17 Page 16 of 17 Page 17 of 17