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Home My WebLink AboutWS-27979_47268_CA_SE_20220127_FHPPropertySOIL EXCAVATION REPORT FHP PROPERTY 720 N. MAIN STREET HIGH POINT, GUILFORD COUNTY, NORTH CAROLINA GROUNDWATER INCIDENT: 47268 FACILITY ID: N/A JANUARY 27, 2022 FORMER BUSINESS OPERATOR: Foreign Auto Repair (current contact information is not known) PROPERTY OWNER / RESPONSIBLE PARTY: Forward High Point, Inc. 164 S. Main Street – Suite 606 High Point, NC 27260 (336) 883-9890 CONSULTANT: Paragon Environmental Consultants, Inc. P. O. Box 157 Thomasville, NC 27361-0157 Phone Number: (336) 669-6037 RELEASE INFORMATION: Date Discovered: September 3, 2020 Estimated Quantity of Release: Unknown Cause of Release: Former Auto Garage Activities Source of Release: Gasoline UST(s) and Unknown Chlorinated Solvents Size and Contents: Unknown Latitude: N 35.963316o Longitude: W 80.010182o The Soil Excavation Report for this site has been prepared by Paragon Environmental Consultants, Inc. under the direct supervision of a licensed geologist. All activities performed on this project were conducted under my direct supervision: Benjamin W. Robinson, L.G. North Carolina License #2466 January 27, 2022 Raymond J. Gibbs Forward High Point, Inc. 164 S. Main Street – Suite 606 High Point, NC 27260 Reference: Soil Excavation Report FHP Property 720 N. Main Street High Point, Guilford County, North Carolina Groundwater Incident: 47268 Facility ID: N/A Dear Mr. Gibbs: In an effort to remove the contaminated soil in excess of the Residential Standards, contained herein is a Soil Excavation Report for the release which occurred at the above referenced facility. These activities have been conducted following the release of petroleum which occurred in the vicinity of a former underground storage tank (UST) system and the release of chlorinated solvents from the former auto garage service station at this facility. The soil remediation consisted of the excavation and disposal of approximately 231 cubic yards of contaminated soil and confirmatory sampling of in-situ soils. All activities were conducted in accordance with North Carolina Department of Environmental Quality (NCDEQ) guidelines and the requirements of 15A NCAC 2N. Mr. Gibbs, if you have questions regarding this report, please contact our office. Sincerely, Benjamin W. Robinson, L.G. Paragon Environmental Consultants, Inc. R22-2065 PARAGON Environmental Consultants, Inc. P.O. Box 157 • Thomasville, NC 27361-0157 Business Ph: (336) 669-6037 • Fax: (336) 476-7708 TABLE OF CONTENTS Section Page B. Site History 1. Introduction .................................................................... 1 2. Scope of Services ........................................................... 1 C. Site Investigation 1. Excavation and Soil Sampling ....................................... 2 2. Soil Disposal .................................................................. 2 3. Conclusions and Recommendations .............................. 3 D. Figures Figure 1: Project Location Figure 2: Remedial Excavations and Soil Sample Locations E. Tables Table 1: Summary of Soil Laboratory Analytical Results F. Appendices Appendix A: Geologic Log of Excavation Appendix B: Soil Analytical Results Appendix C: Standard Operating Procedures Appendix D: Soil Disposal Manifests Page - 1 SOIL EXCAVATION REPORT FHP Property 720 N. Main Street High Point, North Carolina B. Site History 1. Introduction Forward High Point, Inc. owns a property at 720 N. Main Street in High Point, NC. This parcels formerly contained an auto service facility. The former auto service garage, referred to as Former Foreign Auto Repair, is no longer in operation and the former auto facility building has been demolished. A former UST system used for the retail sale of petroleum was removed in the mid-1980s. Figure 1 illustrates the location of this facility on the High Point West Quadrangle U.S.G.S. Topographic Map. Figure 2 illustrates the site layout and the location of the former building at this facility. A release (or releases) was discovered at the subject site during a Phase II Environmental Site Assessment (ESA) performed by Paragon Environmental Consultants, Inc. in September of 2020. The Phase II ESA for this project site was submitted to the NC DEQ by Paragon. An UST-61 form was submitted on September 10, 2020 to report the discovered contamination. A Limited Site Assessment (LSA) was submitted to the DEQ for this incident on October 14, 2020. A Soil Assessment Report was submitted to the NC DEQ by Paragon on March 2, 2021. Following the delineation of the soil contamination, Paragon Environmental Consultants, Inc. was contracted by Forward High Point, Inc. to perform soil remediation activities and confirmatory soil sampling and laboratory analyses in the impacted areas of the project site. Contained herein is a summary of activities which were completed at the project site. 2. Scope of Services This Soil Excavation Report contains documentation concerning the following activities which have been conducted at this facility: o Excavation of contaminated soils and backfilling of the excavation performed by KBS Earthworks, Inc. of Julian, NC o Transportation of contaminated soil and disposal of the excavated material by Jesse Lane’s Trucking, Inc. of Stokesdale, NC o Collection of soil samples from the final limits of the remedial excavations performed by Paragon Environmental o Laboratory analyses of soil samples conducted by Meritech, Inc. of Reidsville, NC Page - 2 C. Site Investigation 1. Excavation and Soil Sampling On January 11, 2021, KBS Earthworks, Inc. (KBS) and Paragon personnel mobilized to the subject site and attempted to remove the petroleum impacted soil which was identified during the contaminated soil delineation activities. The impacted soils in the excavation areas were excavated until field analyses indicated that all petroleum and chlorinated solvent contaminated soil above the Residential Standards had been removed. In order to verify site conditions, four soil samples were collected from the final horizontal limits of the petroleum remedial excavation at a depth of sixteen feet below grade and five soil samples were collected from the final limits of the chlorinated solvent remedial excavation at depths of ten and twelve feet below grade. A pit bottom sample was not collected from petroleum remedial excavation as this area was excavated to the depth of the groundwater table. Appendix A contains a geologic log of excavation for the soil remediation activities at this facility. The nine soil samples collected from the final limits of the remedial excavations at the FHP Property were analyzed by EPA Method 8260. The four soil samples collected from the walls of the petroleum remedial excavation were also analyzed by MADEP methods for Volatile Petroleum Hydrocarbons (VPH). The in-situ soil samples from the final limits of the remedial excavations were collected with the excavator bucket and were immediately placed into laboratory supplied glassware and placed on ice for transportation to the analytical laboratory utilizing EPA approved chain-of-custody procedures. According to the laboratory analytical results for the soil samples, no petroleum or chlorinated solvent compounds were reported above the Residential Standards by EPA Method 8260 or VPH. Based on the soil sample results from the final limits of the remedial excavations, no contamination above the Residential Standards remains in place at this facility. Figure 2 illustrates the areas of soil remediation and the locations of the in-situ soil samples collected at this facility. The analytical results for the soil analyses are summarized in Table 1, and a copy of the laboratory analytical report and the chain-of-custody record is included in Appendix B. All samples were obtained in accordance with Paragon’s Standard Operating Procedures which are included as Appendix C. 2. Soil Disposal A total of approximately 231 cubic yards (324.05 tons) of petroleum impacted soils were removed during the site remediation activities on January 11, 2022. This material was transported by Jesse Lane’s Trucking, Inc. to Alternative Energy Solutions of NC, LLC’s facility in Thomasville, NC for treatment and disposal. Copies of the soil disposal manifests are contained as Appendix D. Page - 3 3. Conclusions and Recommendations 3. A Conclusions and Recommendations The soil remediation activities at the FHP Property have been completed. From a review of all information gathered during this removal project, Paragon Environmental Consultants, Inc. makes the following conclusions: o Laboratory results for soil sampling of in-situ soils following the excavation activities were below the Residential Standards according to EPA Method 8260 and VPH (if applicable). o A total of 324.05 tons of petroleum impacted soils were removed from this facility on January 11, 2022. This material was transported by Jessie Lane’s Trucking, Inc. to Alternative Energy Solutions, LLC’s facility in Thomasville, NC for disposal. 3. B. Recommendations Based upon a review of all information gathered during the soil contamination project, Paragon makes the following recommendations: o A deed recordation with only a groundwater restriction should be filed at the Guilford County Register of Deeds before the property is transferred since all in- situ soils are below the Residential Standards. o A copy of this report should be forwarded to the following address: Guilford County Environmental Health 400 W. Market Street – Suite 300 Greensboro, NC 27401 3. C. Limitations This report has been prepared for the exclusive use of Forward High Point, Inc. for the specific application to the referenced site located in Guilford County, North Carolina. The assessment was conducted based on the scope of work and level of effort desired by the client. Our findings have been developed in accordance with generally accepted standards in the practice of Soil Excavation Reports in the State of North Carolina, available information, and our professional judgment. No other warranty is expressed or implied. The data presented in this report are indicative of conditions that existed at the precise locations sampled and at the time the samples were collected. Additionally, the data obtained from the samples would be interpreted as meaningful with respect to the parameters indicated in the laboratory reports. No additional information can be logically inferred from this data. FIGURES TABLES TABLE 1 Summary of Soil Laboratory Analytical Results FHP Property High Point, North Carolina Constituent P1-NW P1-EW P1-SW P1-WW Lowest MSCCs Res. Standard Ind. / Comm. Standard Date 1/11/2022 1/11/2022 1/11/2022 1/11/2022 Method 8260 (mg/kg) Acetone BDL BDL BDL BDL 24 14000 210000 Benzene BDL BDL BDL BDL 0.0072 12 59.4 n-Butylbenzene BDL BDL BDL BDL 2.4 782 11,600 sec-Butylbenzene BDL BDL BDL BDL 2.2 1,560 23,300 tert-Butylbenzene BDL BDL BDL BDL 1.7 1,560 23,300 Chloromethane BDL BDL BDL BDL 0.014 51 251 2-Chlorotoluene BDL BDL BDL BDL NSE NSE NSE 4-Chlorotoluene BDL BDL BDL BDL 0.28 312 4,670 1,2-Dichlorobenzene BDL BDL BDL BDL 0.23 1,400 21,000 1,3-Dichlorobenzene BDL BDL BDL BDL 7.6 460 7,000 1,4-Dichlorobenzene BDL BDL BDL BDL 0.069 122 605 1,1-Dichloroethene BDL BDL BDL BDL 0.03 116 573 cis-1,2-Dichloroethene BDL BDL BDL BDL 0.35 31.2 467 trans-1,2-Dichloroethene BDL BDL BDL BDL 0.54 312 4,670 1,2-Dichloropropane BDL BDL BDL BDL 0.003 17.9 88.3 Ethanol BDL BDL BDL BDL 16 5,160 77,000 Ethylbenzene BDL BDL BDL BDL 8 60.3 297 2-Hexanone BDL BDL BDL BDL 0.17 78.2 1,160 Isopropylbenzene BDL BDL BDL BDL 1.3 1,560 23,300 4-Isopropyltoluene BDL BDL BDL BDL 0.12 1,560 23,300 Methylene Chloride BDL BDL BDL BDL 0.023 93.8 1,400 Methyl Isobutyl Ketone (MIBK)BDL BDL BDL BDL 0.42 1,250 18,600 Naphthalene BDL BDL BDL BDL 0.2 5.5 27 n-Propylbenzene BDL BDL BDL BDL 1.4 1,560 23,300 Tetrachloroethene (PCE)BDL BDL BDL BDL 0.005 93.8 1,400 Toluene BDL BDL BDL BDL 5.4 1,250 18,600 1,2,4-Trichlorobenzene BDL BDL BDL BDL 2.1 22.8 112 Trichloroethene (TCE)BDL BDL BDL BDL 0.017 7.82 71 1,2,4-Trimethylbenzene BDL BDL BDL BDL 6.6 156 2,330 1,3,5-Trimethylbenzene BDL BDL BDL BDL 6.6 156 2,330 Vinyl Chloride BDL BDL BDL BDL 0.00019 0.921 4.54 Xylenes (total)BDL BDL BDL BDL 6 3,120 46,700 MTBE BDL BDL BDL BDL 0.085 156 1,810 IPE BDL BDL BDL BDL 0.32 156 2,330 Aliphatic Fraction Classes (mg/kg) C5-C8 Volatile Aliphatics BDL BDL BDL BDL 68 625 9,340 C9-C12 Volatile Aliphatics BDL BDL BDL BDL NSE NSE NSE C9-C18 Extractable Aliphatics N/A N/A N/A N/A NSE NSE NSE C9-C18 Aliphatics (total)BDL BDL BDL BDL 540 1,560 23,300 C19-C36 Extractable Aliphatics N/A N/A N/A N/A NSE 31,200 467,000 Aromatic Fraction Classes (mg/kg) C9-C10 Volatile Aromatics BDL BDL BDL BDL NSE NSE NSE C11-C22 Extractable Aromatics N/A N/A N/A N/A NSE NSE NSE C9-C22 Aromatics (total)BDL BDL BDL BDL 31 469 7,000 N/A= Not Analyzed BDL= Below Detection Limits X22-2065 TABLE 1 (CONT'D) Summary of Soil Laboratory Analytical Results (Cont'd) FHP Property High Point, North Carolina Constituent P2-NW P2-EW P2-SW P2-WW P2-PB Lowest MSCCs Res. Standard Ind. / Comm. Standard Date 1/11/2022 1/11/2022 1/11/2022 1/11/2022 1/11/2022 Method 8260 (mg/kg) Acetone BDL BDL BDL BDL BDL 24 14000 210000 Benzene BDL BDL BDL BDL BDL 0.0072 12 59.4 n-Butylbenzene BDL BDL BDL BDL BDL 2.4 782 11,600 sec-Butylbenzene BDL BDL BDL BDL BDL 2.2 1,560 23,300 tert-Butylbenzene BDL BDL BDL BDL BDL 1.7 1,560 23,300 Chloromethane BDL BDL BDL BDL BDL 0.014 51 251 2-Chlorotoluene BDL BDL BDL BDL BDL NSE NSE NSE 4-Chlorotoluene BDL BDL BDL BDL BDL 0.28 312 4,670 1,2-Dichlorobenzene BDL BDL BDL BDL BDL 0.23 1,400 21,000 1,3-Dichlorobenzene BDL BDL BDL BDL BDL 7.6 460 7,000 1,4-Dichlorobenzene BDL BDL BDL BDL BDL 0.069 122 605 1,1-Dichloroethene BDL BDL BDL BDL BDL 0.03 116 573 cis-1,2-Dichloroethene BDL BDL BDL BDL BDL 0.35 31.2 467 trans-1,2-Dichloroethene BDL BDL BDL BDL BDL 0.54 312 4,670 1,2-Dichloropropane BDL BDL BDL BDL BDL 0.003 17.9 88.3 Ethanol BDL BDL BDL BDL BDL 16 5,160 77,000 Ethylbenzene BDL BDL BDL BDL BDL 8 60.3 297 2-Hexanone BDL BDL BDL BDL BDL 0.17 78.2 1,160 Isopropylbenzene BDL BDL BDL BDL BDL 1.3 1,560 23,300 4-Isopropyltoluene BDL BDL BDL BDL BDL 0.12 1,560 23,300 Methylene Chloride BDL BDL BDL BDL BDL 0.023 93.8 1,400 Methyl Isobutyl Ketone (MIBK)BDL BDL BDL BDL BDL 0.42 1,250 18,600 Naphthalene BDL BDL BDL BDL BDL 0.2 5.5 27 n-Propylbenzene BDL BDL BDL BDL BDL 1.4 1,560 23,300 Tetrachloroethene (PCE)0.009 0.008 0.007 BDL BDL 0.005 93.8 1,400 Toluene BDL BDL BDL BDL BDL 5.4 1,250 18,600 1,2,4-Trichlorobenzene BDL BDL BDL BDL BDL 2.1 22.8 112 Trichloroethene (TCE)BDL BDL BDL BDL BDL 0.017 7.82 71 1,2,4-Trimethylbenzene BDL BDL BDL BDL BDL 6.6 156 2,330 1,3,5-Trimethylbenzene BDL BDL BDL BDL BDL 6.6 156 2,330 Vinyl Chloride BDL BDL BDL BDL BDL 0.00019 0.921 4.54 Xylenes (total)BDL BDL BDL BDL BDL 6 3,120 46,700 MTBE BDL BDL BDL BDL BDL 0.085 156 1,810 IPE BDL BDL BDL BDL BDL 0.32 156 2,330 Aliphatic Fraction Classes (mg/kg) C5-C8 Volatile Aliphatics N/A N/A N/A N/A N/A 68 625 9,340 C9-C12 Volatile Aliphatics N/A N/A N/A N/A N/A NSE NSE NSE C9-C18 Extractable Aliphatics N/A N/A N/A N/A N/A NSE NSE NSE C9-C18 Aliphatics (total)N/A N/A N/A N/A N/A 540 1,560 23,300 C19-C36 Extractable Aliphatics N/A N/A N/A N/A N/A NSE 31,200 467,000 Aromatic Fraction Classes (mg/kg) C9-C10 Volatile Aromatics N/A N/A N/A N/A N/A NSE NSE NSE C11-C22 Extractable Aromatics N/A N/A N/A N/A N/A NSE NSE NSE C9-C22 Aromatics (total)N/A N/A N/A N/A N/A 31 469 7,000 N/A= Not Analyzed BDL= Below Detection Limits X22-2065 APPENDIX A GEOLOGIC LOGS OF EXCAVATION GEOLOGIC LOG OF EXCAVATION Paragon Environmental Consultants, Inc. Job Name:FHP Property Address:720 N. Main Street High Point, NC Job No.:P-2065 Excavation Method:Excavator Start Date:1/11/22 Sample Method:Excavator Bucket Contractor:KBS Earthworks, Inc.Sampled By:BWR Sample ID:Remedial Excavation Samples Logged By:BWR Comments: Sample Depth OVA Number (FT.)Soil Decription (color, soil type, moisture) (ppm) P1-NW 16 Red, CLAY with silt, damp N/A P1-EW 16 Orange/tan, Clay with silt, damp N/A P1-SW 16 Red/orange, CLAY with silt, damp N/A P1-WW 16 Tan, Clay with silt, damp N/A P2-NW 10 Orange, Clay with silt, damp N/A P2-EW 10 Red/orange, CLAY with silt, damp N/A P2-SW 10 Red/tan, CLAY with silt, damp N/A P2-WW 10 Orange/tan, Clay with silt, damp N/A P2-PB 12 Tan, Clay with silt, damp N/A P-2065X APPENDIX B SOIL ANALYTICAL RESULTS APPENDIX C STANDARD OPERATING PROCEDURES STANDARD OPERATING PROCEDURES PARAGON ENVIRONMENTAL CONSULTANTS, INC. I. SOIL SAMPLE PROCEDURES 1. Collect all samples using disposable Latex gloves. Gloves are not to be re- used. 2. Place samples into laboratory supplied glassware following requirements for specific analysis. 3. Label samples with sample ID, date, time, and job number. Immediately place samples on ice or in refrigerator to be cooled to approximately 4 degrees Celsius. 4. Store all samples on ice or refrigerate until samples are delivered to the laboratory. 5. Complete a chain of custody record for samples to be submitted to laboratory. Sign and date the chain of custody when samples are relinquished in accordance with EPA chain of custody protocol. II. GROUNDWATER SAMPLING 1. Use new disposable bailer and new nylon string to develop well and collect sample. Handle bailer and string with Latex gloves. 2. Develop well by removing 3 well volumes of water. Dispose of water in accordance with NCDEQ guidelines. 3. Following well development obtain samples in laboratory supplied glassware following requirements for specific analysis. 4. Handle, store, and transport samples in same manner as for soil samples. See items I.3, I.4, and I.5 above. III. EQUIPMENT CONTAMINATION 1. Decontaminate augers, split spoons, and other sampling equipment by the following procedure: A. Soap and tap water wash B. Tap water rinse C. Distilled deionized water rinse D. Isopropyl alcohol rinse E. Distilled water rinse 2. Use new disposable sampling equipment whenever practical. SOP APPENDIX D SOIL DISPOSAL MANIFESTS