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HomeMy WebLinkAboutWS-9597_44769_CA_IAR_20161115 1 Initial Abatement Action Report In addition to reporting initial response and abatement actions and assessment actions and presenting initial site characterization, this newly-created Initial Abatement Action Report must fulfill the requirements, when a release has been discovered, for the following individual reports: Check the applicable report(s). __    Site Check Report (Section C) _X_ UST Closure Report (UST-12) with UST-2 Form (Section D) _X_ Post-Excavation Soil Contamination Assessment Report (Section H) ___ Free Product Recovery Report (Section E) A. Site Information 1. Site Identification Date of Report: 11-11-16 Facility I.D.: Not Registered UST Incident Number (if known): Not Known Site Name: Nick’s Motor Cars Site Street Address: 3384 W. US Hwy. 421 City/Town: Wilkesboro Zip Code: 28697 County: Wilkes Description of Geographical Data Point (e.g., diesel fill port): Building Location Method (GPS, topographical map, other): Google Earth Latitude (decimal degrees): 36.150110° N Longitude (decimal degrees): 81.218895 ° W 2. Information about Contacts Associated with the Leaking UST System (Addresses must include street, city, state, zip code and mailing address, if different) UST Owner/Operator: Nicholas J. Wehrmann Address: 3384 W. US Hwy. 421, Wilkesboro, NC 28697 Tel.: (336) 984-7633 Property Owner: Same Address: Same Tel.: Same Property Occupant: Nicholas J. Wehrmann / Nick’s Motor Cars Consultant/Contractor: Seramur & Associates, PC Address: 165 Knoll Drive, Boone, NC 28607 Tel: (828) 264-0289 Analytical Laboratory: Prism Labs, Inc. State Certification No. 275 Address: 449 Springbrook Road Charlotte, NC 28217 Tel: (704) 529-6364 3. Information about Release Date Discovered: October 11, 2016 Estimated Quantity of Release: Unknown Cause of Release: Tank corrosion Source of Release (Dispenser/Piping/UST): UST System Sizes and contents of UST system(s) from which the release occurred): Three 4,000 Gallon Petroleum USTs 4. Certification I, Keith C. Seramur, a Licensed Geologist for Seramur & Associates, PC, do certify that the information contained in this report is correct and accurate to the best of my knowledge. Seramur & Associates, PC.__ is licensed to practice geology in North Carolina. The certification number of the company or corporation is _C310_________________. Seramur & Associates, PC 165 Knoll Drive Boone, NC 28607 Phone: 828.264.0289 seramur@icloud.com November 13, 2016 Ms. Karen Hall UST Section, DWM, NC DEQ 450 West Hanes Mill Road, Suite 300 Winston-Salem, NC 27105-7407 Subject: Electronic Report Copy Initial Abatement Action Report Nicks Motor Cars Wilkesboro, Wilkes County, NC Facility ID # Not Registered Dear Ms. Hall, We are submitting this electronic copy of the UST Closure Report for Nicks Motor Service. If you have any questions, please call me at (828) 264-0289. Sincerely, Keith C. Seramur, P.G. Consulting Geologist 2 B. Site History and Characterization 1. Site History Table B-2 shows UST Owner/Operator Information. Table B-2: Site History - UST/AST Owner/Operator and Other Responsible Party Information Revision Date: 10/21/16 Incident Number and Name: Nick’s Motor Cars UST ID Number UST 1, UST 2, UST 3 Facility ID Number Not Registered Name of Owner Dates of Operation (mm/dd/yy to mm/dd/yy) Nicholas J. Wehrmann Not Known Street Address 3384 W. US Hwy. 421 City State Zip Telephone Number Wilkesboro NC 28697 (336) 984-7633 Name of Operator Dates of Operation (mm/dd/yy to mm/dd/yy) Tommy Turner (Deceased) Not Known Street Address Not Known City State Zip Telephone Number Not Known NC Not Known Not Known Incident Number N/A Name of Other Responsible Party Dates of Release(s) (mm/dd/yy to mm/dd/yy) N/A N/A Street Address N/A City State Zip Telephone Number N/A N/A N/A N/A 3 2. Site History – UST/AST System and Other Release Information Table B-1 lists information about the former UST systems. Table B-1: Site History – UST/AST System and Other Release Information Revision Date: 10/21/16 Incident Number and Name: Nick’s Motor Cars UST ID Number Current/Last Contents * Previous Contents * Capacity (in gallons) Construction Details ** Tank Dimensions Description of Associated Piping and Pumps Date Tank Installed Status of UST *** Was release associated with the UST System? UST 1 Gasoline/ Diesel Gasoline/ Diesel 4,000 Steel 24.0’ x 5.3’ Steel product lines Unknown (1950’s?) Closed by removal on 10/12/16 yes UST 2 Gasoline/ Diesel Gasoline/ Diesel 4,000 Steel 24.0’ x 5.3’ Steel product lines Unknown (1950’s?) Closed by removal on 10/12/16 yes UST 3 Gasoline/ Diesel Gasoline/ Diesel 4,000 Steel 24.0’ x 5.3’ Steel product lines Unknown (1950’s?) Closed by removal on 10/13/16 yes Incident Number Material Released Date of Release Description of Release Unknown Gasoline/ Diesel Discovered 10/11/16 Petroleum was observed in soil removed from sides and under USTs The recently closed petroleum USTs 1, 2 and 3 were located on the south side of the property (Figure 2). The three USTs (1, 2 and 3) were previously used at the property by Tommy Turner as early as the 1950’s. These were three 4,000 gallon petroleum (gasoline or diesel) USTs. A review of the UST database showed that these USTs were never registered because they were taken out of service reportedly at some time in the 1970’s according to local informants. No release incident number has been associated with these tanks. 3. There are no known spills or releases from non-UST sources at the subject property prior to the release discovered 10/11/16. 4. Provide a comprehensive description of the release, including date discovered, cause and source (including tank identification number and contents), and the relationship of historical UST releases, non-UST releases, and off-site releases (indicate incident number) to contamination from current release. The USTs were permanently closed by removal between October 11 and October 13, 2016. During removal of the tanks, it was noted that there were small holes in several spots on the tanks on the bottoms and sides. Petroleum odors and staining were observed on the sides of the tanks and under the tanks. Gasoline range organics and diesel range organics were detected under each tank. Diesel range organics were found in all three samples under the middle tank (UST 2) and it is suspected that this was the diesel storage tank. Seramur & Associates is not aware of any non-UST releases or off-site releases that could be contributing to contamination from current release. 4 5. Provide a brief description of site characteristics (including status of facility (active or inactive), land use of site and surrounding area, water supply, topography, vegetation, surface water, wells, buildings, surface cover, soil type, depth to and nature of bedrock, depth to groundwater, direction of groundwater flow, etc.) The USTs were taken out of service reportedly at some time in the 1970’s according to local informants. The property is currently used as a body shop/auto restoration facility. Surrounding land use is commercial and residential. A public water supply is available to some properties in the area and a water supply well was observed on at least one nearby property. Groundwater was not observed in the UST excavations. The property is located between two ridges and adjacent to a valley that slopes to the east (Figure 1). Miller’s Creek runs in a northwest to southeast direction in a valley east of the property. The creek is approximately 1,000 feet from the UST excavation at its closest point. There is very little vegetation on the property apart from grass near the highway and brush along the backside of the property. Roots were observed in the tank pit, some as large as tree roots. The soil consists of sandy silt in the source area. Bedrock was not encountered and depth to bedrock is unknown. Bedrock in this area is mapped as the Ashe Formation, primarily a mica schist interbedded with a gneiss (Rankin, D.W., Espenshade, G.H., and Neuman, R.B., 1972, Geologic Map of the West Half of the Winston-Salem Quadrangle, North Carolina, Virginia, and Tennessee. Misc. Geol. Invest. Map I-709-A Dept. of the Interior, U.S. Geol. Surv., Washington D.C., 1 Map.). 6. Summarize initial abatement actions, assessment activities, and corrective actions performed to date and list all reports previously submitted. The USTs were permanently closed by removal between October 11 and October 13, 2016. Each trackhoe bucket of soil removed from the two UST excavations was screened in the field for petroleum vapors with a Photocheck 100 photoionization detector. Approximately 42 cubic yards of contaminated soil was removed from around the USTs. Soil contamination appeared to be primarily limited to the area around and under the tanks. Contaminated soil was transported to Environmental Soils, Inc. in Lattimore, NC. Soil consisted of sandy silt to a depth of about 9 feet. Three soil samples were collected from below each of the three USTs (Figure 4). Another composite sample was collected from the two piles of contaminated soil. All soil samples were analyzed for gasoline range organics and diesel range organics (EPA Method 8015C, TPH GRO/TPH DRO). The only previous report prepared for NCDENR was the 24-Hour UST-61 Report. C. Site Check Report A site check report has not been completed. D. UST Closure Report The UST-2 form is included in Appendix A. 1. Describe preparations for closure including steps taken to notify authorities, permits obtained, and steps taken to clean and purge the tanks. A Utility locate request was made to NC One-Call. Seramur & Associates personnel made site visits to mark the proposed excavation area. The atmosphere in the USTs was checked for explosive vapors with an Explosimeter. The Lower Explosive Limit (LEL) readings for the gasoline USTs were below 10%. The atmosphere inside the USTs were rendered inert with carbon dioxide by placing dry ice (1.5 lbs./100 gallons) in the tanks on October 12 and 13, 2016. A UST closure permit was obtained from the County Fire Marshal. A Health and Safety Plan was prepared for the closure work and a safety meeting was conducted in the morning prior to commencing work. 5 Residual liquids (water w/some fuel) were removed from UST 3 by Petroserve, Inc. prior to the closures. 973 gallons of a gasoline/water mix were removed from the tank. UST 1 and UST 2 were empty. The tanks were excavated and removed from the excavation. Fred Reeves Construction transported the three tanks to their construction yard for cleaning and preparation for recycling. 2. Describe the closure procedure referencing site and sampling location maps and cross-sections presented in Section J of this report. Clearly state how the selection of sample types and locations was influenced by the nature of the stored substance, the type of initial alarm or cause for suspicion, the type of backfill, the depth to groundwater, and other factors appropriate for identifying the presence and source of a release. If presence of groundwater or bedrock require the installation and sampling of monitoring well(s), describe the process. Soil was excavated from the sides and one end of each UST. The USTs were then removed from the excavation using chains and the trackhoe. Soil samples were collected from below each UST (Figures 4 and 5). One additional composite soil sample was collected from the contaminated soil stockpiles. These soil samples were analyzed for gasoline range organics and diesel range organics (EPA Method 8015B, TPH GRO/TPH DRO). Soil samples from the excavation were collected using both the trackhoe bucket and decontaminated hand auger buckets. The extent of the excavation and locations of soil samples are shown on Figures 3, 4 and 5. All soil samples were collected while wearing a new pair of disposable Nitrile gloves. The soil samples were placed in containers provided by the lab, labeled and placed on ice. A chain of custody was initiated and the samples were transported to Prism Labs Inc. in Charlotte, NC for analysis. The selection of sample types and locations was not influenced by the nature of the stored substance. Depth to groundwater is not known. There was no evidence of groundwater in the excavation. The UST excavation was backfilled with clean soil from the excavation as well as clean fill obtained by Fred Reeves Construction. 3. Note the amount of residual material pumped from the tank and describe the storage, sampling and disposal of the residual material and the disposal of the tank, pumps and piping. Residual fuel was removed from UST 3 by Petroserve, Inc. prior to the closures. 973 gallons of a gasoline/water mix were removed from the tank. UST 1 and UST 2 were empty. The tanks were excavated and removed from the excavation. Fred Reeves Construction transported the three tanks to their construction yard for cleaning and preparation for recycling. 4. If a release is determined, document initial response actions. A petroleum odor and staining was noted around the tanks for the three USTs. Soil excavation was limited to the volume of soil that was necessary to remove the USTs from the ground. Three USTs were closed and removed from the site. Contaminated soil associated with the leakage from the tanks was stockpiled onsite. Approximately 42 cubic yards of contaminated soil was stockpiled onsite and later transported to Environmental Soils, Inc. in Lattimore, NC. Elevated concentrations of gasoline range organics and diesel range organics were detected in samples S-1 and S-4. Gasoline range organics were detected above the NCDENR action level in all samples collected from under the tanks except for S-8 and S-10. Diesel range organics were detected above the NCDENR action level only in samples S-1, S-4 and S-9. A 24-hour report was prepared for NC DENR. 5. Document any soil excavation activities. 6 Soil was excavated from the sides and one end of each UST. The USTs were then removed from the excavation using chains and the trackhoe. If petroleum vapors were detected in soil removed from the excavation, it was stockpiled onsite and later transported to a remediation facility. 6. Document site investigation. The trackhoe buckets of soil removed from the UST excavation were screened in the field for petroleum vapors with a Photocheck 100 photoionization detector. The photoionization detector is calibrated with a 100-ppm isobutylene calibration gas mixture. Soil containing petroleum vapors was stockpiled onsite. Soil consisted of sandy silt to a depth of about 9 feet. Soil sample locations are shown on Figures 4 and 5. North-South and East-West cross-sections of the UST system are shown in Figure 5. Soil samples were collected on October 12 and 13, 2016. The sample time is listed on the Chain of Custody Record. Depth to groundwater is not known. There was no evidence of groundwater in the excavation. The UST excavation was backfilled with clean fill from the tank pit and clean fill obtained by Fred Reeves Construction. The hand auger buckets were decontaminated with non-phosphate detergent, distilled water and isopropanol. Horizontal location and depth of the soil samples was measured with a fiberglass tape, estimating right angles and referencing site features. Soil samples were stored on ice and shipped to Prism Labs in Charlotte, NC via Federal Express. Elevated concentrations of gasoline range organics and diesel range organics were detected in samples S-1 and S-4. Gasoline range organics were detected above the NCDENR action level in all samples collected from under the tanks except for S-8 and S-10. Diesel range organics were detected above the NCDENR action level only in samples S-1, S-4 and S-9. 7. Present conclusions and recommendations, referencing maps The source of soil contamination was the three USTs. Petroleum constituents were detected at concentrations above the NCDENR action levels in the base of the UST excavation. Elevated concentrations of gasoline range organics and diesel range organics were detected in samples S-1 and S-4. Gasoline range organics were detected above the NCDENR action level in all samples collected from under the tanks except for S-8 and S-10. Diesel range organics were detected above the NCDENR action level only in samples S-1, S-4 and S-9. Free product has not been encountered at the site. The next assessment phase required by NCDEQ would be an LSA report. E. Free Product Investigation and Recovery Report Free product was not observed during the UST closure. F. Groundwater and Surface Water Investigation There was no groundwater or surface water investigation completed during the UST closure. G. Initial Response and Abatement Action Contaminated soil associated with the release from the USTs was stockpiled onsite. Approximately 40 cubic yards of contaminated soil was stockpiled. Nine soil samples (S-1 through S-6 and S-8 through S-10) were collected from within the excavation for TPH GRO/DRO analysis. One additional composite sample was collected from the soil stockpiles. A 24-hour report was prepared for NCDENR. 7 H. Excavation of Contaminated Soil A petroleum odor and staining was noted around the tanks for the three USTs. Soil excavation was limited to the volume of soil that was necessary to remove the USTs from the ground. The three USTs were collected and removed from the site. Contaminated soil associated with the leakage from the tanks was stockpiled onsite. Approximately 40 cubic yards of contaminated soil was stockpiled onsite. I. Conclusions The source of soil contamination was the three USTs. Petroleum constituents were detected at concentrations above the NCDENR action levels in the base of the UST excavation. Elevated concentrations of gasoline range organics and diesel range organics were detected in samples S-1 and S-4. Gasoline range organics were detected above the NCDENR action level in all samples collected from under the tanks except for S-8 and S-10. Diesel range organics were detected above the NCDENR action level only in samples S-1, S-4 and S-9. Free product has not been encountered at the site. The next assessment phase required by NCDEQ would be an LSA report. J. Table B-3 and Figures Table B-3: Summary of Soil Sampling Results Revision Date: 10/26/16 Incident Number and Name: Nick’s Motor Cars Facility ID#: Not Registered 8 Analytical Method (e.g., VOC by EPA 8260) à 8015C 8015C Contaminant of Concern à TPH GRO (mg/kg) TPH DRO (mg/kg) Sample ID Date Collected (mm/dd/yy) Source Area (eg. Tank pit 1) Sample Depth (ft BGS) Incident Phase (Closure , etc) S-1 10/12/16 UST 1 8.6 ft Closure 14,000 2,900 S-2 10/12/16 UST 1 8.6 ft Closure 80 31 S-3 10/12/16 UST 1 8.6 ft Closure 64 ND S-4 10/12/16 UST 2 8.6 ft Closure 3,200 1,700 S-5 10/12/16 UST 2 8.6 ft Closure 160 39 S-6 10/12/16 UST 2 8.6 ft Closure 400 15 S-7 10/12/16 Stockpile N/A Closure 12 13 S-8 10/13/16 UST 3 8.6 ft Closure 38 ND S-9 10/13/16 UST 3 8.6 ft Closure 190 750 S-10 10/13/16 UST 3 8.6 ft Closure ND ND NCDENR Action Level 50 100 ft. BGS = feet below ground surface ND = Petroleum Constituents Below Reporting Limit or Not Detected 9 10 11 12 13 14 Appendix A – UST-2 Form 15 Appendix B Laboratory Reports and Chain of Custody This data package contains the analytical results for the project identified above and includes a Case Narrative, Sample Results and Chain of Custody. Unless otherwise noted, all samples were received in acceptable condition and processed according to the referenced methods. Data qualifiers are flagged individually on each sample. A key reference for the data qualifiers appears at the end of this case narrative. NC Certification No. 402 NC Drinking Water Cert No. 37735 SC Certification No. 99012 Case Narrative 10/28/2016 Keith C. Seramur PGPC Keith Seramur 165 Knoll Dr. Boone, NC 28607 Project: Nick’s Motor Cars Lab Submittal Date: 10/19/2016 Prism Work Order: 6100377 Please call if you have any questions relating to this analytical report. Respectfully, PRISM LABORATORIES, INC. VP Laboratory Services Reviewed ByAngela D. Overcash Angela D. Overcash VP Laboratory Services Data Qualifiers Key Reference: A Surrogate recovery below range due to sample matrix. Matrix interference suspected. DO Surrogates diluted out. M Matrix spike outside of the control limits. RLM Sample container suspected to have low methanol content. Results possibly biased high. SR Surrogate recovery outside the QC limits. Method Detection LimitMDL Below Reporting LimitBRL Relative Percent DifferenceRPD *Results reported to the reporting limit. All other results are reported to the MDL with values between MDL and reporting limit indicated with a J. This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 1 of 18 Sample Receipt Summary 10/28/2016 Prism Work Order: 6100377 Client Sample ID MatrixLab Sample ID Date Sampled Date Received 6100377-01 10/12/16S-1 10/19/16Solid 6100377-02 10/12/16S-2 10/19/16Solid 6100377-03 10/12/16S-3 10/19/16Solid 6100377-04 10/12/16S-4 10/19/16Solid 6100377-05 10/12/16S-5 10/19/16Solid 6100377-06 10/12/16S-6 10/19/16Solid 6100377-07 10/12/16S-7 10/19/16Solid 6100377-08 10/13/16S-8 10/19/16Solid 6100377-09 10/13/16S-9 10/19/16Solid 6100377-10 10/13/16S-10 10/19/16Solid Samples were received in good condition at 5.2 degrees C unless otherwise noted. This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 2 of 18 Client ID ResultParameterMethod UnitsPrism ID Prism Work Order: 6100377 10/28/2016 Summary of Detections 2900 mg/kg dry6100377-01 S-1 Diesel Range Organics *8015C 14000 mg/kg dry6100377-01 S-1 Gasoline Range Organics *8015C 31 mg/kg dry6100377-02 S-2 Diesel Range Organics *8015C 80 mg/kg dry6100377-02 S-2 Gasoline Range Organics *8015C 64 mg/kg dry6100377-03 S-3 Gasoline Range Organics *8015C 1700 mg/kg dry6100377-04 S-4 Diesel Range Organics *8015C 3200 mg/kg dry6100377-04 S-4 Gasoline Range Organics *8015C 39 mg/kg dry6100377-05 S-5 Diesel Range Organics *8015C 160 mg/kg dry6100377-05 S-5 Gasoline Range Organics *8015C 15 mg/kg dry6100377-06 S-6 Diesel Range Organics *8015C 400 mg/kg dry6100377-06 S-6 Gasoline Range Organics *8015C 13 mg/kg dry6100377-07 S-7 Diesel Range Organics *8015C 12 mg/kg dry6100377-07 S-7 Gasoline Range Organics *8015C 38 mg/kg dry6100377-08 S-8 Gasoline Range Organics *8015C 750 mg/kg dry6100377-09 S-9 Diesel Range Organics *8015C 190 mg/kg dry6100377-09 S-9 Gasoline Range Organics *8015C This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 3 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-1 Prism Sample ID: 6100377-01 Prism Work Order: 6100377 Time Collected: 10/12/16 14:56 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID 2900 *8015C P6J03755042010/21/16 23:46 ZRCmg/kg dry 97Diesel Range Organics Surrogate Recovery Control Limits 49-1240 %o-Terphenyl DO Gasoline Range Organics by GC/FID 14000 *8015C P6J0410500093010/25/16 12:09 ANGmg/kg dry 140Gasoline Range Organics Surrogate Recovery Control Limits 50-1370 %a,a,a-Trifluorotoluene DO General Chemistry Parameters 82.4 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 4 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-2 Prism Sample ID: 6100377-02 Prism Work Order: 6100377 Time Collected: 10/12/16 14:59 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID 31 *8015C P6J037518.7 10/21/16 16:58 ZRCmg/kg dry 2.0Diesel Range Organics Surrogate Recovery Control Limits 49-12463 %o-Terphenyl Gasoline Range Organics by GC/FID RLM 80 *8015C P6J0410508.9 10/24/16 22:45 ANGmg/kg dry 1.3Gasoline Range Organics Surrogate Recovery Control Limits 50-137154 %a,a,a-Trifluorotoluene SR General Chemistry Parameters 80.6 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 5 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-3 Prism Sample ID: 6100377-03 Prism Work Order: 6100377 Time Collected: 10/12/16 15:05 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID BRL *8015C P6J037511010/21/16 17:35 ZRCmg/kg dry 2.3Diesel Range Organics Surrogate Recovery Control Limits 49-12482 %o-Terphenyl Gasoline Range Organics by GC/FID 64 *8015C P6J0410507.1 10/24/16 23:13 ANGmg/kg dry 1.1Gasoline Range Organics Surrogate Recovery Control Limits 50-137119 %a,a,a-Trifluorotoluene General Chemistry Parameters 68.9 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 6 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-4 Prism Sample ID: 6100377-04 Prism Work Order: 6100377 Time Collected: 10/12/16 16:50 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID 1700 *8015C P6J03755050010/22/16 0:23 ZRCmg/kg dry 110Diesel Range Organics Surrogate Recovery Control Limits 49-1240 %o-Terphenyl DO Gasoline Range Organics by GC/FID 3200 *8015C P6J0410100016010/25/16 2:28 ANGmg/kg dry 25Gasoline Range Organics Surrogate Recovery Control Limits 50-137100 %a,a,a-Trifluorotoluene General Chemistry Parameters 69.8 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 7 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-5 Prism Sample ID: 6100377-05 Prism Work Order: 6100377 Time Collected: 10/12/16 17:00 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID 39 *8015C P6J037518.9 10/21/16 18:12 ZRCmg/kg dry 2.0Diesel Range Organics Surrogate Recovery Control Limits 49-12479 %o-Terphenyl Gasoline Range Organics by GC/FID 160 *8015C P6J0410505.8 10/25/16 1:04 ANGmg/kg dry 0.87Gasoline Range Organics Surrogate Recovery Control Limits 50-137116 %a,a,a-Trifluorotoluene General Chemistry Parameters 78.6 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 8 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-6 Prism Sample ID: 6100377-06 Prism Work Order: 6100377 Time Collected: 10/12/16 17:15 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID 15 *8015C P6J037519.4 10/21/16 18:49 ZRCmg/kg dry 2.1Diesel Range Organics Surrogate Recovery Control Limits 49-12478 %o-Terphenyl Gasoline Range Organics by GC/FID RLM 400 *8015C P6J0410509.8 10/25/16 1:32 ANGmg/kg dry 1.5Gasoline Range Organics Surrogate Recovery Control Limits 50-137140 %a,a,a-Trifluorotoluene SR General Chemistry Parameters 74.7 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 9 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-7 Prism Sample ID: 6100377-07 Prism Work Order: 6100377 Time Collected: 10/12/16 18:08 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID 13 *8015C P6J037519.2 10/21/16 19:26 ZRCmg/kg dry 2.1Diesel Range Organics Surrogate Recovery Control Limits 49-12476 %o-Terphenyl Gasoline Range Organics by GC/FID 12 *8015C P6J0410507.5 10/24/16 23:41 ANGmg/kg dry 1.1Gasoline Range Organics Surrogate Recovery Control Limits 50-137124 %a,a,a-Trifluorotoluene General Chemistry Parameters 76.2 *SM2540 G P6J040710.100 10/21/16 16:42 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 10 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-8 Prism Sample ID: 6100377-08 Prism Work Order: 6100377 Time Collected: 10/13/16 13:15 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID BRL *8015C P6J037519.0 10/21/16 20:04 ZRCmg/kg dry 2.1Diesel Range Organics Surrogate Recovery Control Limits 49-12488 %o-Terphenyl Gasoline Range Organics by GC/FID 38 *8015C P6J0410506.6 10/25/16 0:09 ANGmg/kg dry 0.99Gasoline Range Organics Surrogate Recovery Control Limits 50-137114 %a,a,a-Trifluorotoluene General Chemistry Parameters 77.0 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 11 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-9 Prism Sample ID: 6100377-09 Prism Work Order: 6100377 Time Collected: 10/13/16 13:22 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID 750 *8015C P6J0375109610/24/16 11:05 ZRCmg/kg dry 22Diesel Range Organics Surrogate Recovery Control Limits 49-12494 %o-Terphenyl Gasoline Range Organics by GC/FID 190 *8015C P6J04102503410/25/16 2:00 ANGmg/kg dry 5.2Gasoline Range Organics Surrogate Recovery Control Limits 50-137130 %a,a,a-Trifluorotoluene General Chemistry Parameters 73.2 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 12 of 18 Laboratory Report 10/28/2016 ResultParameter Batch ID Report Limit Analysis Date/Time MethodDilution Factor Units MDL Analyst 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Sample Matrix: Solid Client Sample ID: S-10 Prism Sample ID: 6100377-10 Prism Work Order: 6100377 Time Collected: 10/13/16 13:35 Time Submitted: 10/19/16 11:58 Diesel Range Organics by GC/FID BRL *8015C P6J037518.7 10/21/16 21:18 ZRCmg/kg dry 2.0Diesel Range Organics Surrogate Recovery Control Limits 49-12445 %o-Terphenyl A Gasoline Range Organics by GC/FID BRL *8015C P6J0410508.2 10/25/16 0:37 ANGmg/kg dry 1.2Gasoline Range Organics Surrogate Recovery Control Limits 50-137136 %a,a,a-Trifluorotoluene General Chemistry Parameters 80.2 *SM2540 G P6J037710.100 10/20/16 16:45 JLB% by Weight 0.100% Solids This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 13 of 18 10/28/16 Level II QC Report 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Prism Work Order: 6100377 Time Submitted: 10/19/2016 11:58:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Gasoline Range Organics by GC/FID - Quality Control Batch P6J0410 - 5035 Blank (P6J0410-BLK1)Prepared & Analyzed: 10/24/16 Gasoline Range Organics mg/kg wetBRL5.0 mg/kg wet 5.000 50-137Surrogate: a,a,a-Trifluorotoluene 1085.40 LCS (P6J0410-BS1)Prepared & Analyzed: 10/24/16 Gasoline Range Organics mg/kg wet54.3 5.0 50.00 41-138109 mg/kg wet 5.000 50-137Surrogate: a,a,a-Trifluorotoluene 964.80 LCS Dup (P6J0410-BSD1)Prepared & Analyzed: 10/24/16 Gasoline Range Organics mg/kg wet59.8 5.0 50.00 2041-138120 10 mg/kg wet 5.000 50-137Surrogate: a,a,a-Trifluorotoluene 994.95 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 14 of 18 10/28/16 Level II QC Report 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Prism Work Order: 6100377 Time Submitted: 10/19/2016 11:58:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte Diesel Range Organics by GC/FID - Quality Control Batch P6J0375 - 3546 Blank (P6J0375-BLK1)Prepared & Analyzed: 10/21/16 Diesel Range Organics mg/kg wetBRL7.0 mg/kg wet 1.332 49-124Surrogate: o-Terphenyl 761.01 LCS (P6J0375-BS1)Prepared & Analyzed: 10/21/16 Diesel Range Organics mg/kg wet55.6 7.0 66.67 55-10983 mg/kg wet 1.333 49-124Surrogate: o-Terphenyl 811.08 LCS Dup (P6J0375-BSD1)Prepared & Analyzed: 10/21/16 Diesel Range Organics mg/kg wet51.7 7.0 66.67 2055-10978 7 mg/kg wet 1.333 49-124Surrogate: o-Terphenyl 761.01 Matrix Spike (P6J0375-MS1)Prepared & Analyzed: 10/21/16 Source: 6100377-10 Diesel Range Organics mg/kg dry55.3 8.7 83.07 2.42 50-11764 mg/kg dry 1.661 49-124Surrogate: o-Terphenyl 621.03 Matrix Spike Dup (P6J0375-MSD1)Prepared & Analyzed: 10/21/16 Source: 6100377-10 Diesel Range Organics mg/kg dry42.3 8.7 83.01 2.42 24 M50-11748 27 mg/kg dry 1.660 A49-124Surrogate: o-Terphenyl 450.751 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 15 of 18 10/28/16 Level II QC Report 165 Knoll Dr. Project: Nick’s Motor CarsKeith C. Seramur PGPC Boone, NC 28607 Attn: Keith Seramur Prism Work Order: 6100377 Time Submitted: 10/19/2016 11:58:00AM Result Limit Reporting Units Level Spike Result Source %REC %REC Limits RPD RPD Limit Notes Analyte General Chemistry Parameters - Quality Control Batch P6J0377 - Solids, Dry Weight Duplicate (P6J0377-DUP3)Prepared & Analyzed: 10/20/16 Source: 6100377-01 % Solids % by Weight82.4 0.100 82.4 200.07 Duplicate (P6J0377-DUP4)Prepared & Analyzed: 10/20/16 Source: 6100377-10 % Solids % by Weight79.8 0.100 80.2 200.5 This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 16 of 18 Sample Extraction Data Prep Method: 3546 Lab Number Batch Date/TimeInitialFinal P6J03756100377-01 10/21/16 9:2530.01 1g mL P6J03756100377-02 10/21/16 9:2530.04 1g mL P6J03756100377-03 10/21/16 9:2530.02 1g mL P6J03756100377-04 10/21/16 9:2530.07 1g mL P6J03756100377-05 10/21/16 9:2530.06 1g mL P6J03756100377-06 10/21/16 9:2530.06 1g mL P6J03756100377-07 10/21/16 9:2530.01 1g mL P6J03756100377-08 10/21/16 9:2530.16 1g mL P6J03756100377-09 10/21/16 9:2530.04 1g mL P6J03756100377-10 10/21/16 9:2530.08 1g mL Prep Method: 5035 Lab Number Batch Date/TimeInitialFinal P6J04106100377-01 10/24/16 13:373.26 5g mL P6J04106100377-02 10/24/16 13:373.47 5g mL P6J04106100377-03 10/24/16 13:375.13 5g mL P6J04106100377-04 10/24/16 13:374.39 5g mL P6J04106100377-05 10/24/16 13:375.48 5g mL P6J04106100377-06 10/24/16 13:373.42 5g mL P6J04106100377-07 10/24/16 13:374.38 5g mL P6J04106100377-08 10/24/16 13:374.93 5g mL P6J04106100377-09 10/24/16 13:374.98 5g mL P6J04106100377-10 10/24/16 13:373.81 5g mL Prep Method: Solids, Dry Weight Lab Number Batch Date/TimeInitialFinal P6J03776100377-01 10/20/16 16:4530 30g g P6J03776100377-02 10/20/16 16:4530 30g g P6J03776100377-03 10/20/16 16:4530 30g g P6J03776100377-04 10/20/16 16:4530 30g g P6J03776100377-05 10/20/16 16:4530 30g g P6J03776100377-06 10/20/16 16:4530 30g g P6J04076100377-07 10/21/16 16:4230 30g g P6J03776100377-08 10/20/16 16:4530 30g g P6J03776100377-09 10/20/16 16:4530 30g g P6J03776100377-10 10/20/16 16:4530 30g g This report should not be reproduced, except in its entirety, without the written consent of Prism Laboratories, Inc. 449 Springbrook Road - P.O. Box 240543 - Charlotte, NC 28224-0543 Phone: 704/529-6364 - Toll Free Number: 1-800/529-6364 - Fax: 704/525-0409 Page 17 of 18 Page 18 of 18 16 Appendix C Standard Operating Procedures The atmosphere in the USTs was checked for explosive vapors with an Explosimeter. The Lower Explosive Limit (LEL) readings for the gasoline USTs were below 10%. The atmosphere inside the USTs were rendered inert with carbon dioxide by placing dry ice (1.5 lbs./100 gallons) in the tanks on October 12 and 13, 2016. A Health and Safety Plan was prepared for the closure work. A safety meeting was conducted prior to commencing work. Soil samples collected from the excavation were collected out of the trackhoe bucket and with decontaminated hand auger buckets. The hand auger buckets were decontaminated with non-phosphate detergent and distilled water and isopropanol rinses. Soil samples collected for laboratory analysis were placed in laboratory sample jars with Teflon-lined lids; chilled and Chain-of-Custody record was initiated. Soil samples were transported to Prism Labs Inc. in Charlotte, North Carolina for analyses. A new pair of disposable Nitrile gloves was worn while collecting each sample. The depth and horizontal locations of the soil samples were identified by measuring with a fiberglass tape, estimating right angles and referencing site features. 17 Appendix D Disposal Manifests 18 19 20