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HomeMy WebLinkAboutWS-29842_48944_CA_IAR_20230411INITIAL ABATEMENT ACTION REPORT SMITH RESIDENCE 5000 SPARROW COURT PLEASANT GARDEN, GUILFORD COUNTY, NORTH CAROLINA GROUNDWATER INCIDENT: 48944 FACILITY ID: N/A APRIL 11, 2023 UST OWNER: Susan Smith 5000 Sparrow Court Pleasant Garden, NC 27313 Phone Number: (336) 707-0695 PROPERTY OWNER: Same as UST Owner CONSULTANT: Paragon Environmental Consultants, Inc. P. O. Box 157 Thomasville, NC 27361-0157 Phone Number: (336) 669-6037 RELEASE INFORMATION: Date Discovered: 4/3/23 Estimated Quantity of Release: Unknown Cause of Release: Unknown Source of Release: UST Size and Contents: One (1) 550 Gallon Heating Oil UST Latitude: N 35.982632o Longitude: W 79.755768o The Initial Abatement Action 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 April 11, 2023 Susan Smith 5000 Sparrow Court Pleasant Garden, NC 27313 Reference: Initial Abatement Action Report Smith Residence 5000 Sparrow Court Pleasant Garden, Guilford County, North Carolina Groundwater Incident: 48944 Facility ID: Not Applicable Dear Ms. Smith: In accordance with the requirements of the current UST Section guidelines, contained herein is an Initial Abatement Action 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 one 550 gallon heating oil underground storage tank (UST). The soil remediation consisted of the excavation and disposal of approximately 66.46 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. Ms. Smith, if you have questions regarding this report, please contact our office. Sincerely, Benjamin W. Robinson, L.G. Paragon Environmental Consultants, Inc. R23-2236 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: Site Layout and Former UST Location Figure 3: Remedial Excavation and Soil Sample Locations E. Tables Table 1: Site History Table 2: Field and Laboratory Analytical Results – TPH Soil Samples F. Appendices Appendix A: Tank Disposal Manifest Appendix B: Geologic Log of Excavation Appendix C: Soil Analytical Results Appendix D: Standard Operating Procedures Appendix E: Soil Disposal Manifests Page - 1 INITIAL ABATEMENT ACTION REPORT Smith Residence 5000 Sparrow Court Pleasant Garden, North Carolina B. Site History 1. Introduction Susan Smith owns a property located at 5000 Sparrow Court in Pleasant Garden, NC. This property contains one permanent structure which is used as a residence. Figure 1 illustrates the location of this facility on the Pleasant Garden Quadrangle U.S.G.S. Topographic Map. The site formerly contained one 550 gallon heating oil UST which was used for heating the residence. Figure 2 illustrates the site layout and the location of the former UST. Information regarding the ownership of the non-regulated UST which was formerly located at this facility is contained in Table 1. A release from the 550 gallon tank was confirmed upon receipt of analytical results for a soil sample collected during the UST removal activities. The soil sample collected from beneath the UST was reported at a level of 8,340 milligrams per kilogram (mg/kg) by Diesel Range Organics (DRO). Following discovery of the tank release, Paragon Environmental Consultants, Inc. was contracted by Susan Smith to perform soil remediation activities and confirmatory soil sampling and laboratory analyses in the area of the contaminated 550 gallon heating oil UST. Contained herein is a summary of activities which were completed at the project site. 2. Scope of Services This Initial Abatement Action 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 by KBS Earthworks, Inc. and disposal of the excavated material at AES of NC, LLC of Thomasville, NC o Collection of soil samples from the limits of the excavation performed by Paragon Environmental o Laboratory analyses of soil samples conducted by Waypoint Analytical, LLC of Charlotte, NC Page - 2 C. Site Investigation 1. Excavation and Soil Sampling On March 22, 2023 personnel from KBS Earthworks, Inc. (KBS) and Paragon Environmental Consultants, Inc. (Paragon) removed the 550 gallon tank and attempted to remove the petroleum impacted soil identified during the UST closure activities. Appendix A contains a tank disposal manifest for the UST which was formerly located at the subject property. The impacted soils in the excavation area were excavated until field analyses indicated that all petroleum contaminated soil had been removed. In order to verify site conditions, one sample was collected from the pit bottom at a depth of 14 feet below land surface and one sample was collected from each of the walls at depths of 12 feet below grade. Appendix B contains a geologic log of excavation for the soil remediation activities at this facility. The soil samples collected from the remedial excavation at 5000 Sparrow Court were analyzed according to Gasoline Range Organics (GRO) and Diesel Range Organics (DRO) for TPH. The in-situ soil samples from the bottom and walls of the excavation 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, the five in-situ samples were below the NCDEQ action levels for TPH by GRO and DRO. Based on the soil sample results from the limits of the remedial excavation, no petroleum contamination above the NCDEQ action levels remains in place at this facility. Figure 3 illustrates the area of soil remediation and the locations of the in-situ soil samples collected at this facility. The analytical results for the TPH soil analyses are summarized in Table 2. A copy of the laboratory analytical report and the chain-of-custody record for the samples from this subject site is included in Appendix C. All samples were obtained in accordance with Paragon’s Standard Operating Procedures which are included as Appendix D. 2. Soil Disposal A total of approximately 66.46 cubic yards (93.05 tons) of heating oil impacted soils were removed during site remediation activities on March 22, 2023. This material was transported by KBS to AES’s facility in Thomasville, NC for treatment and disposal. Copies of the soil disposal manifests are contained in Appendix E. Page - 3 3. Conclusions and Recommendations 3. A Conclusions and Recommendations The soil remediation activities at the Smith Residence have been completed. From a review of all information gathered during this remediation project, Paragon Environmental Consultants, Inc. makes the following conclusions: o Laboratory results for sampling of in-situ soils following the excavation activities showed all five soil samples were below the NCDEQ action levels for TPH by GRO and DRO. o A total of 93.05 tons of heating oil impacted soils were removed from beneath the former heating oil UST. This material was transported by KBS to AES in Thomasville, NC for disposal. 3. B. Recommendations Based upon a review of all information gathered during this Initial Abatement project, Paragon makes the following recommendations: o A notice of No Further Action should be issued for the subject site since all in-situ soils are below the applicable soil cleanup standards. o A copy of this report should be forwarded to the following address: Guilford County Health Department 400 W. Market Street – Suite 300 Greensboro, NC 27401 3. C. Limitations This report has been prepared for the exclusive use of Susan Smith 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 Initial Abatement Action 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: SITE HISTORY SMITH RESIDENCE 5000 SPARROW COURT PLEASANT GARDEN, NORTH CAROLINA Property Ownership: Susan Smith 5000 Sparrow Court Pleasant Garden, NC 27313 UST Ownership: Same as property owner UST Information: Tank Installation Size Closure UST Tank No Date (Gal) Date Status Contents T1 Unknown 550 March 22, 2023 Removed Heating Oil TABLE 2 FIELD AND LABORATORY ANALYTICAL RESULTS - TPH SOIL SAMPLES Smith Residence 5000 Sparrow Court Pleasant Garden, North Carolina SAMPLE LOCATION DATE DEPTH TPH DRO* TPH GRO* OVA ID (FT) NW North Wall 3/22/23 12' <5.71 <2.54 N/A EW East Wall 3/22/23 12' 24.8 <2.73 N/A SW South Wall 3/22/23 12' <6.48 <2.88 N/A WW West Wall 3/22/23 12' 90.6 <2.50 N/A PB Pit Bottom 3/22/23 14' 21.4 <2.93 N/A * Results in milligrams per kilogram (mg/kg) N/A = Not Analyzed <10 = Below Detection Limits R23-2236T APPENDIX A TANK DISPOSAL MANIFEST Tank Disposal Manifest KBS Earthworks, INC. 5616 Coble Church Rd. KBS Job/Invoice #________ Julian, NC 27283 (p) 336.362.0289 Property Owner / Authorized Representative Name & Mailing Address: _______________________________________________________ _______________________________________________________ Phone Number: _______________________________________________________ _______________________________________________________ Description of Tanks: Tank # Capacity Previous Contents Comments Tank Owner / Authorized Representative Certification: The Undersigned certifies that the above listed storage tank(s) have been removed from the premises of the tank owner Transporter: The Undersigned certifies that the above listed storage tank(s) have been transported to KBS Earthworks, Inc. Julian, NC. Disposal certification: The Undersigned certifies that the above listed storage tank(s) have been cut into pieces & disposed of. Name Signature Date 1 550 gallons FUEL OIL Brett W. Strader 4/10/2023 Susan Smith 5000 Sparrow Ct. Pleasant Garden, NC 5678 APPENDIX B GEOLOGIC LOG OF EXCAVATION GEOLOGIC LOG OF EXCAVATION Paragon Environmental Consultants, Inc. Job Name:Smith Residence Address:5000 Sparrow Court Pleasant Garden, NC Job No.:P-2236 Excavation Method:Excavator Start Date:3/22/23 Sample Method:Excavator Bucket Contractor:KBS Earthworks, Inc.Sampled By:BWR Sample ID:Soil Remediation Samples Logged By:BWR Comments: Sample Depth OVA Number (FT.)Soil Decription (color, soil type, moisture) (ppm) NW 12 Tan, SILT with clay, damp N/A EW 12 Tan, SILT with clay, damp N/A SW 12 Tan, SILT with clay, damp N/A WW 12 Tan, SILT with clay, damp N/A PB 14 Tan, SILT with clay, damp N/A P-2236X APPENDIX C SOIL ANALYTICAL RESULTS   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   4/3/2023 Paragon Environmental Consultants, Inc. Brandon Moore PO Box 157 Thomasville, NC, 27361 Ref: Analytical Testing Lab Report Number: 23-082-0032 Client Project Description: Smith Residence P-2236 Dear Brandon Moore: Waypoint Analytical, LLC (Charlotte) received sample(s) on 3/23/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as- received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 22 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Page 1 of 1 00016/23-082-0032 Page 2 of 22 Report Number: Sample Summary Table Client Project Description: 23-082-0032 Smith Residence P-2236 Lab No Client Sample ID Matrix Date Collected Date Received 03/22/2023 10:00Solids 92036 T1-6 03/23/2023 15:10 03/22/2023Solids 92037 NW 03/23/2023 15:10 03/22/2023Solids 92038 EW 03/23/2023 15:10 03/22/2023Solids 92039 SW 03/23/2023 15:10 03/22/2023Solids 92040 WW 03/23/2023 15:10 03/22/2023Solids 92041 PB 03/23/2023 15:10 Page 3 of 22 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-082-0032 Report Limit Project:Smith Residence V 92036T1-6 8340 03/30/2023 17:488015C DRO Diesel Range Organics (C10-C28)mg/Kg - dry 577 19.4 03/28/2023 15:31SW-DRYWT Moisture % V 92037NW 18.5 03/28/2023 15:31SW-DRYWT Moisture % V 92038EW 24.8 03/29/2023 17:318015C DRO Diesel Range Organics (C10-C28)mg/Kg - dry 6.16 24.5 03/28/2023 15:31SW-DRYWT Moisture % V 92039SW 28.2 03/28/2023 15:31SW-DRYWT Moisture % V 92040WW 90.6 03/29/2023 18:138015C DRO Diesel Range Organics (C10-C28)mg/Kg - dry 5.62 17.3 03/28/2023 15:31SW-DRYWT Moisture % V 92041PB 21.4 03/29/2023 18:358015C DRO Diesel Range Organics (C10-C28)mg/Kg - dry 6.58 29.3 03/28/2023 15:31SW-DRYWT Moisture % Page 4 of 22   Client: Paragon Environmental Consultants, Inc. CASE NARRATIVE Project: Smith Residence Lab Report Number: 23-082-0032 Date: 4/3/2023 Total Petroleum Hydrocarbons - Volatile Method 8015C GRO Sample 92037 (NW) Analyte: a,a,a-Trifluorotoluene QC Batch No: V31169/V31168 Surrogate(s) was flagged for recovery outside QC limits in this project sample. This sample was re-analyzed for verification, and/or dilution of target analytes. Batch QC samples (method blank and laboratory control samples) all showed surrogates within QC limits. Sample 92038 (EW) Analyte: a,a,a-Trifluorotoluene QC Batch No: V31169/V31168 Surrogate(s) exhibited a high bias in this project sample where no target analytes were detected. The high recovery(s) had no impact on the data. Batch QC samples (method blank and laboratory control samples) all showed surrogates within QC limits. Sample 92040 (WW) Analyte: a,a,a-Trifluorotoluene QC Batch No: V31169/V31168 Surrogate(s) exhibited a high bias in this project sample where no target analytes were detected. The high recovery(s) had no impact on the data. Batch QC samples (method blank and laboratory control samples) all showed surrogates within QC limits. Page 5 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:T1-6 92036 Matrix: 3/22/2023 10:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 19.4 %Moisture 1 03/28/23 15:31 SW-DRYWTPEB Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 6 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:T1-6 92036 Matrix: 3/22/2023 10:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V31334 03/29/23 10:00 8340 mg/Kg - dry 577 1240Diesel Range Organics (C10-C28)100 03/30/23 17:48 V31436AMP 8015C DROSurrogate: OTP Surrogate 54.1 Limits: 31-123%03/30/23 17:48100 AMP Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 7 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:NW 92037 Matrix: 3/22/2023 0:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 18.5 %Moisture 1 03/28/23 15:31 SW-DRYWTPEB Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 8 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:NW 92037 Matrix: 3/22/2023 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V31334 03/29/23 10:00 <5.71 mg/Kg - dry 5.71 12.3Diesel Range Organics (C10-C28)1 03/29/23 17:10 V31436AMP 8015C DROSurrogate: OTP Surrogate 56.5 Limits: 31-123%03/29/23 17:101 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V31168 03/24/23 08:00 <2.54 mg/Kg - dry 2.54 6.13Gasoline Range Organics (C6-C10)50 03/24/23 11:23 V31169TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 123 Limits: 50-137%03/24/23 11:2350 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 9 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:EW 92038 Matrix: 3/22/2023 0:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 24.5 %Moisture 1 03/28/23 15:31 SW-DRYWTPEB Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 10 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:EW 92038 Matrix: 3/22/2023 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V31334 03/29/23 10:00 24.8 mg/Kg - dry 6.16 13.2Diesel Range Organics (C10-C28)1 03/29/23 17:31 V31436AMP 8015C DROSurrogate: OTP Surrogate 58.9 Limits: 31-123%03/29/23 17:311 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V31168 03/24/23 08:00 <2.74 mg/Kg - dry 2.74 6.62Gasoline Range Organics (C6-C10)50 03/24/23 11:52 V31169TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 149 *Limits: 50-137%03/24/23 11:5250 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 11 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:SW 92039 Matrix: 3/22/2023 0:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 28.2 %Moisture 1 03/28/23 15:31 SW-DRYWTPEB Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 12 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:SW 92039 Matrix: 3/22/2023 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V31334 03/29/23 10:00 <6.48 mg/Kg - dry 6.48 13.9Diesel Range Organics (C10-C28)1 03/29/23 17:52 V31436AMP 8015C DROSurrogate: OTP Surrogate 55.7 Limits: 31-123%03/29/23 17:521 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V31168 03/24/23 08:00 <2.88 mg/Kg - dry 2.88 6.96Gasoline Range Organics (C6-C10)50 03/24/23 12:22 V31169TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 128 Limits: 50-137%03/24/23 12:2250 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 13 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:WW 92040 Matrix: 3/22/2023 0:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 17.3 %Moisture 1 03/28/23 15:31 SW-DRYWTPEB Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 14 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:WW 92040 Matrix: 3/22/2023 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V31334 03/29/23 10:00 90.6 mg/Kg - dry 5.62 12.1Diesel Range Organics (C10-C28)1 03/29/23 18:13 V31436AMP 8015C DROSurrogate: OTP Surrogate 55.1 Limits: 31-123%03/29/23 18:131 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V31168 03/24/23 08:00 <2.50 mg/Kg - dry 2.50 6.05Gasoline Range Organics (C6-C10)50 03/24/23 12:51 V31169TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 146 *Limits: 50-137%03/24/23 12:5150 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 15 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:PB 92041 Matrix: 3/22/2023 0:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 29.3 %Moisture 1 03/28/23 15:31 SW-DRYWTPEB Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 16 of 22 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 23-082-0032 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2236 Received : 03/23/2023 Smith Residence Report Date : 04/03/2023 Sample ID : Lab No : Sampled:PB 92041 Matrix: 3/22/2023 0:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 3546 8015C DRO Prep Batch(es):V31334 03/29/23 10:00 21.4 mg/Kg - dry 6.58 14.1Diesel Range Organics (C10-C28)1 03/29/23 18:35 V31436AMP 8015C DROSurrogate: OTP Surrogate 50.5 Limits: 31-123%03/29/23 18:351 AMP Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V31168 03/24/23 08:00 <2.93 mg/Kg - dry 2.93 7.07Gasoline Range Organics (C6-C10)50 03/24/23 13:19 V31169TBL 8015C GROSurrogate: a,a,a-Trifluorotoluene 125 Limits: 50-137%03/24/23 13:1950 TBL Qualifiers/ Definitions Dilution FactorDFOutside QC Limit* Method Quantitation LimitMQL Page 17 of 22 Quality Control Data 23-082-0032Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Smith Residence QC Prep Batch Method: Total Petroleum Hydrocarbons - Extractable 8015C DRO V31436QC Analytical Batch(es): Analysis Method: Analysis Description: 3546 QC Prep:V31334 Associated Lab Samples: 92036, 92037, 92038, 92039, 92040, 92041 LRB-V31334 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/29/23 14:4210.04.65<4.65mg/KgDiesel Range Organics (C10-C28) 03/29/23 14:42OTP Surrogate (S)50.9 31-123 LCS-V31334 LCSD-V31334Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 60.8 91.189.659.866.7mg/KgDiesel Range Organics (C10-C28)46-126 1.6 20 58.360.1OTP Surrogate (S)31-123 Page 1 of 3Date:04/03/2023 04:25 PM Page 18 of 22 Quality Control Data 23-082-0032Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Smith Residence QC Prep Batch Method: Total Petroleum Hydrocarbons - Volatile 8015C GRO V31169QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V31168 Associated Lab Samples: 92037, 92038, 92039, 92040, 92041 LRB-V31168 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 03/24/23 10:545.002.07<2.07mg/KgGasoline Range Organics (C6-C10) 03/24/23 10:54a,a,a-Trifluorotoluene (S)99.4 50-137 LCS-V31168Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10954.550.0mg/KgGasoline Range Organics (C6-C10)41-138 115a,a,a-Trifluorotoluene (S)50-137 V 92037-MS-V31168 V 92037-MSD-V31168Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 65.2 13059.750.050.0<2.07mg/KgGasoline Range Organics (C6-C10)119 41-138 8.8 34 157*a,a,a-Trifluorotoluene (S)138*50-137 Page 2 of 3* QC Fail Date:04/03/2023 04:25 PM Page 19 of 22 Quality Control Data 23-082-0032Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Smith Residence Dry Weight Determination SW-DRYWT V31307QC Analytical Batch: Analysis Method: Analysis Description: V 91868-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 03/28/23 15:311.314.514.7%Moisture V 92036-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 03/28/23 15:314.718.519.4%Moisture Page 3 of 3Date:04/03/2023 04:25 PM Page 20 of 22 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-082-0032 Paragon Environmental Consultants, Inc. 01156 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 3.3C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)ü High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:03/23/2023 19:09:16 Special precautions or instructions included? Comments: Page 21 of 22 Page 22 of 22 APPENDIX D 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 E SOIL DISPOSAL MANIFESTS