Loading...
HomeMy WebLinkAboutWS-28565_0_CA-SCH_20211228_Quick-Mart December 28, 2021 Edward Lyles Tarheel Services 5030 Southern Way Greensboro, NC 27405 Reference: Soil Sampling and Analytical Shreeji Maharaj, Inc. dba Quick Food Mart 4302 W. Gate City Boulevard Greensboro, North Carolina Facility ID # 00-0-0000002809 Dear Mr. Lyles: Please find enclosed a report summarizing the soil sampling activities near two existing monitor wells at this facility. A recent Groundwater Monitoring Report at 4302 W. Gate City Boulevard showed increases in groundwater contaminant concentrations in Monitor Well #2 and Monitor Well #5. On December 7, 2021 Paragon Environmental Consultants, Inc. mobilized to the site in order to conduct assessment sampling in the immediate vicinity of these two monitor wells as directed by the Winston-Salem Regional Office of the NC DEQ. The results of our findings are summarized herein. One soil sample was obtained directly adjacent to both of the monitor wells at depths approximately 12 inches above the groundwater table as measured prior to the sample collection. The soil samples were collected using a direct push Geoprobe® sampling rig. Paragon obtained the samples from in-situ soils at depths of approximately 11 feet below surface grade near MW-2 and approximately 12 feet below surface grade near MW-5. The sample from the vicinity of MW-2 was labeled as MW-2 Soil Sample (MW-2SS), and the sample from the vicinity of MW-5 was labeled as MW-5 Soil Sample (MW-5SS). Following the sampling activities, the boreholes were backfilled with the bentonite and patched at surface grade with concrete. The two soil samples obtained from this facility were submitted to Waypoint Analytical, LLC for laboratory analysis according to Gasoline Range Organics (GRO). GRO tests for Total Petroleum Hydrocarbons (TPH) from low boiling-point fuels such as gasoline, aviation fuel, and gasohol. The current action level for GRO constituents is 50 milligrams per kilogram (mg/kg). The sample from the vicinity of MW-2 indicated a TPH level by GRO of 1,190 mg/kg, and the sample from the vicinity of MW-5 showed TPH - GRO at a concentration of 414 mg/kg. Both of these concentrations are in excess of the NC DEQ action level of 50 mg/kg. Table 1 summarizes the laboratory analytical results for 4302 W. Gate City Boulevard in Greensboro, NC. PARAGON Environmental Consultants, Inc. P.O. Box 157 • Thomasville, NC 27361-0157 Business Ph: (336) 669-6037 • Fax: (336) 476-7708 Sample MW-2SS, which had the higher TPH level, was then also analyzed by EPA Method 8260 and for Volatile Petroleum Hydrocarbons (VPH). Sample MW-2SS indicated Naphthalene by Method 8260 at a level of 1.33 mg/kg which is above the lowest Maximum Soil Contaminant Concentration (MSCC) of 0.16 mg/kg. C5-C8 Aliphatics was detected at 153 mg/kg, and C9-C22 Aromatics was reported at a concentration of 33.3 mg/kg. These two carbon fractions have lowest MSCCs of 68 mg/kg and 31 mg/kg, respectively. All three of these constituents were significantly below the Residential Standards which would indicate that no new release in either area is occurring at this subject facility. Table 2 summarizes the “Risk-Based” soil analytical results, and Attachment A contains a copy of the laboratory analytical report and the chain-of-custody record for the soil samples obtained on December 7, 2021. Based on the findings from our investigation showing petroleum concentrations below the applicable “Risk-Based” standards in the two areas directed to be sampled by the DEQ, Paragon recommends no further actions to be conducted by the current UST owner at Quick Food Mart. Please contact our office at (336) 669-6037 if you have any questions regarding the site check activities. Sincerely, Brandon Moore, L.G. Paragon Environmental Consultants, Inc. L21-2183 TABLE 1 LABORATORY ANALYTICAL RESULTS – TPH SOIL SAMPLES Shreeji Maharaj, Inc. dba Quick Food Mart 4302 W. Gate City Boulevard Greensboro, NC SAMPLE LOCATION DATE DEPTH TPH 5030* OVA ID MW-2SS Monitor Well #2 12/7/21 2' 1,190 N/A - Soil Sample MW-5SS Monitor Well #5 12/7/21 2' 414 N/A - Soil Sample * Results in milligrams per kilogram (mg/kg) N/A = Not Analyzed L21-2183T TABLE 2 Summary of Soil Laboratory Analytical Results Quick Food Mart Greensboro, North Carolina Constituent MW-2SS Lowest MSCCs Res. Standard Ind. / Comm. Standard Date 12/7/2021 Method 8260 (mg/kg) Acetone 0.186 24 14,000 360,000 Benzene BDL 0.0056 18 164 n-Butylbenzene 0.567 4.3 626 16,350 sec-Butylbenzene 0.16 3.3 626 16,350 tert-Butylbenzene BDL 3.4 626 16,350 1,1-Dichloroethene BDL 0.045 780 20,000 Ethylbenzene 0.073 4.9 1,560 40,000 n-Hexane 2.07 NSE NSE NSE Isopropylbenzene 0.073 1.7 1,564 40,880 4-Isopropyltoluene 0.083 0.12 100 4,000 Methylene Chloride BDL 0.02 85 763 Naphthalene 1.33 0.16 313 8,176 n-Propylbenzene 0.404 1.7 626 16,350 Tetrachloroethene (PCE)BDL 0.0074 1.1 10 Toluene BDL 4.3 1,200 32,000 Trichloroethene (TCE)BDL 0.019 4.6 120 1,2,4-Trichlorobenzene BDL 2.6 156 4,088 1,2,4-Trimethylbenzene 2.4 8.5 782 20,440 1,3,5-Trimethylbenzene 0.83 8.3 782 20,440 Vinyl Chloride BDL 0.00018 0.46 4.1 Xylenes (total)0.356 4.6 3,129 81,760 MTBE BDL 0.091 350 3,100 IPE BDL 0.37 156 4,088 Aliphatic Fraction Classes (mg/kg) C5-C8 Volatile Aliphatics 153 68 939 24,528 C9-C12 Volatile Aliphatics 121 NSE NSE NSE C9-C18 Extractable Aliphatics N/A NSE NSE NSE C9-C18 Aliphatics (total)121 540 1,500 40,000 C19-C36 Extractable Aliphatics N/A NSE 31,000 810,000 Aromatic Fraction Classes (mg/kg) C9-C10 Volatile Aromatics 33.3 NSE NSE NSE C11-C22 Extractable Aromatics N/A NSE NSE NSE C9-C22 Aromatics (total)33.3 31 469 12,264 N/A= Not Analyzed BDL= Below Detection Limits X21-2183 ATTACHMENT A LABORATORY 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.   12/15/2021 Paragon Environmental Consultants, Inc. Brandon Moore PO Box 157 Thomasville, NC, 27361 Ref: Analytical Testing Lab Report Number: 21-342-0021 Client Project Description: Quick Food Mart P-2183 Dear Brandon Moore: Waypoint Analytical, LLC (Charlotte) received sample(s) on 12/8/2021 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 12 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202237735State ProgramNorth Carolina 12/31/2021402State ProgramNorth Carolina 07/31/202299012State ProgramSouth Carolina 12/31/202199012State ProgramSouth Carolina Page 1 of 1 00016/21-342-0021 Page 2 of 12 Report Number: Sample Summary Table Client Project Description: 21-342-0021 Quick Food Mart P-2183 Lab No Client Sample ID Matrix Date Collected Date Received 12/07/2021 13:00Solids 90122 MW-2 Soil sample (MW-2SS)12/08/2021 11:45 12/07/2021 12:45Solids 90123 MW-5 Soil sample (MW-5SS)12/08/2021 11:45 Page 3 of 12 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 21-342-0021 Report Limit Project:Quick Food Mart V 90122MW-2 Soil sample (MW-2SS) 1190 12/15/2021 06:048015C GRO Gasoline Range Organics (C6-C10)mg/Kg 0.385 23.8 12/09/2021 15:51SW-DRYWT Moisture % V 90123MW-5 Soil sample (MW-5SS) 414 12/14/2021 16:368015C GRO Gasoline Range Organics (C6-C10)mg/Kg 0.047 19.9 12/09/2021 15:51SW-DRYWT Moisture % Page 4 of 12 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-342-0021 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/08/2021 Quick Food Mart Report Date : 12/15/2021 Sample ID : Lab No : Sampled:MW-2 Soil sample (MW-2SS) 90122 Matrix: 12/7/2021 13:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 23.8 %Moisture 1 12/09/21 15:51 SW-DRYWTSMW Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 5 of 12 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-342-0021 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/08/2021 Quick Food Mart Report Date : 12/15/2021 Sample ID : Lab No : Sampled:MW-2 Soil sample (MW-2SS) 90122 Matrix: 12/7/2021 13:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V12794 12/14/21 08:00 1190 mg/Kg 0.385 46.5Gasoline Range Organics (C6-C10)500 12/15/21 06:04 V12795TBL Surrogate: a,a,a-Trifluorotoluene 126 Limits: 50-137%12/15/21 06:04500 TBL V12795 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 6 of 12 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-342-0021 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/08/2021 Quick Food Mart Report Date : 12/15/2021 Sample ID : Lab No : Sampled:MW-5 Soil sample (MW-5SS) 90123 Matrix: 12/7/2021 12:45 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 19.9 %Moisture 1 12/09/21 15:51 SW-DRYWTSMW Qualifiers/ Definitions Limit ExceededLDilution FactorDF Method Quantitation LimitMQL Page 7 of 12 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-342-0021 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/08/2021 Quick Food Mart Report Date : 12/15/2021 Sample ID : Lab No : Sampled:MW-5 Soil sample (MW-5SS) 90123 Matrix: 12/7/2021 12:45 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8015C GRO Prep Batch(es):V12794 12/14/21 08:00 414 mg/Kg 0.047 5.71Gasoline Range Organics (C6-C10)50 12/14/21 16:36 V12795TBL Surrogate: a,a,a-Trifluorotoluene 115 Limits: 50-137%12/14/21 16:3650 TBL V12795 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 8 of 12 Quality Control Data 21-342-0021Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart QC Prep Batch Method: Total Petroleum Hydrocarbons - Volatile 8015C GRO V12795QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V12794 Associated Lab Samples: 90122, 90123 LRB-V12794 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 12/14/21 13:465.000.041<0.041mg/KgGasoline Range Organics (C6-C10) 12/14/21 13:46a,a,a-Trifluorotoluene (S)94.2 50-137 LCS-V12794Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 93.646.850.0mg/KgGasoline Range Organics (C6-C10)41-138 95.0a,a,a-Trifluorotoluene (S)50-137 V 90121-MS-V12794 V 90121-MSD-V12794Matrix 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 49.8 99.650.850.050.00.429mg/KgGasoline Range Organics (C6-C10)102 41-138 1.9 34 91.4a,a,a-Trifluorotoluene (S)88.4 50-137 Page 1 of 2Date:12/15/2021 11:02 AM Page 9 of 12 Quality Control Data 21-342-0021Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart Dry Weight Determination SW-DRYWT V12648QC Analytical Batch: Analysis Method: Analysis Description: V 90065-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 12/09/21 15:510.776.475.8%Moisture V 90102-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 12/09/21 15:516.715.816.9%Moisture Page 2 of 2Date:12/15/2021 11:02 AM Page 10 of 12 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:21-342-0021 Paragon Environmental Consultants, Inc. 01156 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT-15 2.8C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)? Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Sarah J. Locklear Date & Time:12/08/2021 14:10:19 Special precautions or instructions included? Comments: Page 11 of 12 Page 12 of 12   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.   12/20/2021 Paragon Environmental Consultants, Inc. Brandon Moore PO Box 157 Thomasville, NC, 27361 Ref: Analytical Testing Lab Report Number: 21-349-0019 Client Project Description: Quick Food Mart P-2183 Dear Brandon Moore: Waypoint Analytical, LLC (Charlotte) received sample(s) on 12/15/2021 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 20 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202237735State ProgramNorth Carolina 12/31/2021402State ProgramNorth Carolina 07/31/202299012State ProgramSouth Carolina 12/31/202199012State ProgramSouth Carolina Page 1 of 1 00016/21-349-0019 Page 2 of 20 Report Number: Sample Summary Table Client Project Description: 21-349-0019 Quick Food Mart P-2183 Lab No Client Sample ID Matrix Date Collected Date Received 12/07/2021 13:00Solids 90672 MW-2 Soil Sample (MW-2SS)12/15/2021 13:35 Page 3 of 20 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 21-349-0019 Report Limit Project:Quick Food Mart V 90672MW-2 Soil Sample (MW-2SS) J0.186 12/16/2021 14:568260DAcetonemg/Kg - dry 0.111 0.567 12/16/2021 14:568260Dn-Butylbenzene mg/Kg - dry 0.022 J0.160 12/16/2021 14:568260Dsec-Butyl benzene mg/Kg - dry 0.025 J0.073 12/16/2021 14:568260DEthylbenzenemg/Kg - dry 0.026 2.07 12/16/2021 14:568260Dn-Hexane mg/Kg - dry 0.030 J0.073 12/16/2021 14:568260DIsopropylbenzenemg/Kg - dry 0.021 J0.083 12/16/2021 14:568260D4-Isopropyl toluene mg/Kg - dry 0.060 1.33 12/16/2021 14:568260DNaphthalenemg/Kg - dry 0.046 0.404 12/16/2021 14:568260Dn-Propylbenzene mg/Kg - dry 0.025 2.40 12/16/2021 14:568260D1,2,4-Trimethylbenzene mg/Kg - dry 0.022 0.830 12/16/2021 14:568260D1,3,5-Trimethylbenzene mg/Kg - dry 0.025 J0.099 12/16/2021 14:568260Do-Xylene mg/Kg - dry 0.023 J0.256 12/16/2021 14:568260Dm,p-Xylene mg/Kg - dry 0.058 J0.356 12/16/2021 14:568260DXylene (Total)mg/Kg - dry 0.023 153 12/16/2021 14:33MADEP-VPH Aliphatic C5-C8 mg/Kg - dry 2.14 121 12/16/2021 14:33MADEP-VPH Aliphatic C9-C12 mg/Kg - dry 8.02 33.3 12/16/2021 14:33MADEP-VPH Aromatic C9-C10 mg/Kg - dry 1.10 27.6 12/17/2021 13:53SW-DRYWT Moisture % Page 4 of 20 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-349-0019 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/15/2021 Quick Food Mart Report Date : 12/20/2021 Sample ID : Lab No : Sampled:MW-2 Soil Sample (MW-2SS) 90672 Matrix: 12/7/2021 13:00 Solids Test Results Units MDL MQL By Analytical Method Date / Time Analyzed DF 27.6 %Moisture 1 12/17/21 13:53 SW-DRYWTSMW Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQLLimit ExceededL Page 5 of 20 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-349-0019 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/15/2021 Quick Food Mart Report Date : 12/20/2021 Sample ID : Lab No : Sampled:MW-2 Soil Sample (MW-2SS) 90672 Matrix: 12/7/2021 13:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8260D Prep Batch(es):V12939 12/16/21 08:00 0.186 J mg/Kg - dry 0.111 0.930Acetone 50 12/16/21 14:56 V12940TBL <0.056 mg/Kg - dry 0.056 0.930Acrolein 50 12/16/21 14:56 V12940TBL <0.034 mg/Kg - dry 0.034 0.930Acrylonitrile 50 12/16/21 14:56 V12940TBL <0.026 mg/Kg - dry 0.026 0.232Benzene 50 12/16/21 14:56 V12940TBL <0.023 mg/Kg - dry 0.023 0.232Bromobenzene 50 12/16/21 14:56 V12940TBL <0.037 mg/Kg - dry 0.037 0.232Bromochloromethane 50 12/16/21 14:56 V12940TBL <0.055 mg/Kg - dry 0.055 0.232Bromodichloromethane 50 12/16/21 14:56 V12940TBL <0.046 mg/Kg - dry 0.046 0.232Bromoform 50 12/16/21 14:56 V12940TBL <0.084 mg/Kg - dry 0.084 0.465 Bromomethane 50 12/16/21 14:56 V12940TBL 0.567 mg/Kg - dry 0.022 0.232n-Butylbenzene 50 12/16/21 14:56 V12940TBL 0.160 J mg/Kg - dry 0.025 0.232sec-Butyl benzene 50 12/16/21 14:56 V12940TBL <0.023 mg/Kg - dry 0.023 0.232tert-Butyl benzene 50 12/16/21 14:56 V12940TBL <0.029 mg/Kg - dry 0.029 0.232Carbon Disulfide 50 12/16/21 14:56 V12940TBL <0.073 mg/Kg - dry 0.073 0.232Carbon Tetrachloride 50 12/16/21 14:56 V12940TBL <0.031 mg/Kg - dry 0.031 0.232Chlorobenzene 50 12/16/21 14:56 V12940TBL <0.041 mg/Kg - dry 0.041 0.232 Chlorodibromomethane 50 12/16/21 14:56 V12940TBL <0.041 mg/Kg - dry 0.041 0.465Chloroethane 50 12/16/21 14:56 V12940TBL <0.048 mg/Kg - dry 0.048 0.232Chloroform 50 12/16/21 14:56 V12940TBL <0.029 mg/Kg - dry 0.029 0.465Chloromethane 50 12/16/21 14:56 V12940TBL <0.023 mg/Kg - dry 0.023 0.2322-Chlorotoluene 50 12/16/21 14:56 V12940TBL <0.018 mg/Kg - dry 0.018 0.2324-Chlorotoluene 50 12/16/21 14:56 V12940TBL <0.033 mg/Kg - dry 0.033 0.232Di-Isopropyl Ether (DIPE)50 12/16/21 14:56 V12940TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 6 of 20 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-349-0019 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/15/2021 Quick Food Mart Report Date : 12/20/2021 Sample ID : Lab No : Sampled:MW-2 Soil Sample (MW-2SS) 90672 Matrix: 12/7/2021 13:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8260D Prep Batch(es):V12939 12/16/21 08:00 <0.020 mg/Kg - dry 0.020 0.4651,2-Dibromo-3-Chloropropane 50 12/16/21 14:56 V12940TBL <0.027 mg/Kg - dry 0.027 0.2321,2-Dibromoethane 50 12/16/21 14:56 V12940TBL <0.045 mg/Kg - dry 0.045 0.232Dibromomethane 50 12/16/21 14:56 V12940TBL <0.014 mg/Kg - dry 0.014 0.2321,2-Dichlorobenzene 50 12/16/21 14:56 V12940TBL <0.017 mg/Kg - dry 0.017 0.2321,3-Dichlorobenzene 50 12/16/21 14:56 V12940TBL <0.027 mg/Kg - dry 0.027 0.2321,4-Dichlorobenzene 50 12/16/21 14:56 V12940TBL <0.061 mg/Kg - dry 0.061 0.465Dichlorodifluoromethane 50 12/16/21 14:56 V12940TBL <0.038 mg/Kg - dry 0.038 0.2321,1-Dichloroethane 50 12/16/21 14:56 V12940TBL <0.064 mg/Kg - dry 0.064 0.232 1,2-Dichloroethane 50 12/16/21 14:56 V12940TBL <0.033 mg/Kg - dry 0.033 0.2321,1-Dichloroethene 50 12/16/21 14:56 V12940TBL <0.036 mg/Kg - dry 0.036 0.232cis-1,2-Dichloroethene 50 12/16/21 14:56 V12940TBL <0.048 mg/Kg - dry 0.048 0.232trans-1,2-Dichloroethene 50 12/16/21 14:56 V12940TBL <0.020 mg/Kg - dry 0.020 0.2321,2-Dichloropropane 50 12/16/21 14:56 V12940TBL <0.025 mg/Kg - dry 0.025 0.2321,3-Dichloropropane 50 12/16/21 14:56 V12940TBL <0.058 mg/Kg - dry 0.058 0.2322,2-Dichloropropane 50 12/16/21 14:56 V12940TBL <0.035 mg/Kg - dry 0.035 0.232 1,1-Dichloropropene 50 12/16/21 14:56 V12940TBL <0.025 mg/Kg - dry 0.025 0.232cis-1,3-Dichloropropene 50 12/16/21 14:56 V12940TBL <0.037 mg/Kg - dry 0.037 0.232trans-1,3-Dichloropropene 50 12/16/21 14:56 V12940TBL 0.073 J mg/Kg - dry 0.026 0.232Ethylbenzene 50 12/16/21 14:56 V12940TBL <0.038 mg/Kg - dry 0.038 4.65Ethyl Tertiary Butyl Ether (ETBE)50 12/16/21 14:56 V12940TBL <0.036 mg/Kg - dry 0.036 0.465Hexachlorobutadiene 50 12/16/21 14:56 V12940TBL 2.07 mg/Kg - dry 0.030 0.465n-Hexane 50 12/16/21 14:56 V12940TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 7 of 20 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-349-0019 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/15/2021 Quick Food Mart Report Date : 12/20/2021 Sample ID : Lab No : Sampled:MW-2 Soil Sample (MW-2SS) 90672 Matrix: 12/7/2021 13:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8260D Prep Batch(es):V12939 12/16/21 08:00 <0.028 mg/Kg - dry 0.028 0.9302-Hexanone 50 12/16/21 14:56 V12940TBL 0.073 J mg/Kg - dry 0.021 0.232Isopropylbenzene 50 12/16/21 14:56 V12940TBL 0.083 J mg/Kg - dry 0.060 0.2324-Isopropyl toluene 50 12/16/21 14:56 V12940TBL <0.030 mg/Kg - dry 0.030 0.930Methyl Ethyl Ketone (MEK)50 12/16/21 14:56 V12940TBL <0.028 mg/Kg - dry 0.028 0.232Methyl tert-butyl ether (MTBE)50 12/16/21 14:56 V12940TBL <0.698 mg/Kg - dry 0.698 0.9304-Methyl-2-Pentanone 50 12/16/21 14:56 V12940TBL <0.068 mg/Kg - dry 0.068 0.232Methylene Chloride 50 12/16/21 14:56 V12940TBL 1.33 mg/Kg - dry 0.046 0.465Naphthalene 50 12/16/21 14:56 V12940TBL 0.404 mg/Kg - dry 0.025 0.232 n-Propylbenzene 50 12/16/21 14:56 V12940TBL <0.065 mg/Kg - dry 0.065 0.232Styrene 50 12/16/21 14:56 V12940TBL <0.048 mg/Kg - dry 0.048 0.2321,1,1,2-Tetrachloroethane 50 12/16/21 14:56 V12940TBL <0.014 mg/Kg - dry 0.014 0.2321,1,2,2-Tetrachloroethane 50 12/16/21 14:56 V12940TBL <0.041 mg/Kg - dry 0.041 0.232Tetrachloroethene 50 12/16/21 14:56 V12940TBL <0.030 mg/Kg - dry 0.030 0.232Toluene 50 12/16/21 14:56 V12940TBL <0.025 mg/Kg - dry 0.025 0.4651,2,3-Trichlorobenzene 50 12/16/21 14:56 V12940TBL <0.029 mg/Kg - dry 0.029 0.465 1,2,4-Trichlorobenzene 50 12/16/21 14:56 V12940TBL <0.066 mg/Kg - dry 0.066 0.2321,1,1-Trichloroethane 50 12/16/21 14:56 V12940TBL <0.021 mg/Kg - dry 0.021 0.2321,1,2-Trichloroethane 50 12/16/21 14:56 V12940TBL <0.042 mg/Kg - dry 0.042 0.232Trichloroethene 50 12/16/21 14:56 V12940TBL <0.097 mg/Kg - dry 0.097 0.465Trichlorofluoromethane 50 12/16/21 14:56 V12940TBL <0.033 mg/Kg - dry 0.033 0.2321,2,3-Trichloropropane 50 12/16/21 14:56 V12940TBL 2.40 mg/Kg - dry 0.022 0.2321,2,4-Trimethylbenzene 50 12/16/21 14:56 V12940TBL Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 8 of 20 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-349-0019 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/15/2021 Quick Food Mart Report Date : 12/20/2021 Sample ID : Lab No : Sampled:MW-2 Soil Sample (MW-2SS) 90672 Matrix: 12/7/2021 13:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF 5035 MED 8260D Prep Batch(es):V12939 12/16/21 08:00 0.830 mg/Kg - dry 0.025 0.2321,3,5-Trimethylbenzene 50 12/16/21 14:56 V12940TBL <0.021 mg/Kg - dry 0.021 0.465Vinyl Acetate 50 12/16/21 14:56 V12940TBL <0.022 mg/Kg - dry 0.022 0.465Vinyl Chloride 50 12/16/21 14:56 V12940TBL 0.099 J mg/Kg - dry 0.023 0.232o-Xylene 50 12/16/21 14:56 V12940TBL 0.256 J mg/Kg - dry 0.058 0.465m,p-Xylene 50 12/16/21 14:56 V12940TBL 0.356 J mg/Kg - dry 0.023 0.232Xylene (Total)50 12/16/21 14:56 V12940 Surrogate: 4-Bromofluorobenzene 97.2 Limits: 70-130%12/16/21 14:5650 TBL V12940 Surrogate: Dibromofluoromethane 95.3 Limits: 70-130%12/16/21 14:5650 TBL V12940 Surrogate: Toluene-d8 89.9 Limits: 76-129%12/16/21 14:5650 TBL V12940 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 9 of 20 , REPORT OF ANALYSISReport Number : Project Information : NC 27361 21-349-0019 01156 Paragon Environmental Consultants, Inc. PO Box 157 Brandon Moore Thomasville P-2183 Received : 12/15/2021 Quick Food Mart Report Date : 12/20/2021 Sample ID : Lab No : Sampled:MW-2 Soil Sample (MW-2SS) 90672 Matrix: 12/7/2021 13:00 Solids Analytical Method: Prep Method: Test Results Units MDL MQL By Analytical Batch Date / Time Analyzed DF MAVPH (Prep) MADEP-VPH Prep Batch(es):V12884 12/16/21 08:00 153 mg/Kg - dry 2.14 14.1Aliphatic C5-C8 100 12/16/21 14:33 V12885TBL 121 mg/Kg - dry 8.02 14.1Aliphatic C9-C12 100 12/16/21 14:33 V12885TBL 33.3 mg/Kg - dry 1.10 14.1Aromatic C9-C10 100 12/16/21 14:33 V12885TBL Surrogate: 2,5-Dibromotoluene (FID)79.3 Limits: 70-130%12/16/21 14:33100 TBL V12885 Surrogate: 2,5-Dibromotoluene (PID)82.0 Limits: 70-130%12/16/21 14:33100 TBL V12885 Qualifiers/ Definitions Estimated valueJDilution FactorDF Method Quantitation LimitMQL Page 10 of 20 Quality Control Data 21-349-0019Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12940QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V12939 Associated Lab Samples: 90672 LRB-V12939 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 12/16/21 10:180.0200.002<0.002mg/KgAcetone 12/16/21 10:180.0200.001<0.001mg/KgAcrolein 12/16/21 10:180.0200.0008<0.0008mg/KgAcrylonitrile 12/16/21 10:180.0050.0006<0.0006mg/KgBenzene 12/16/21 10:180.0050.0005<0.0005mg/KgBromobenzene 12/16/21 10:180.0050.0008<0.0008mg/KgBromochloromethane 12/16/21 10:180.0050.001<0.001mg/KgBromodichloromethane 12/16/21 10:180.0050.001<0.001mg/KgBromoform 12/16/21 10:180.0100.001<0.001mg/KgBromomethane 12/16/21 10:180.0050.0005<0.0005mg/Kgn-Butylbenzene 12/16/21 10:180.0050.0006<0.0006mg/Kgsec-Butyl benzene 12/16/21 10:180.0050.0005<0.0005mg/Kgtert-Butyl benzene 12/16/21 10:180.0050.0006<0.0006mg/KgCarbon Disulfide 12/16/21 10:180.0050.001<0.001mg/KgCarbon Tetrachloride 12/16/21 10:180.0050.0007<0.0007mg/KgChlorobenzene 12/16/21 10:180.0050.0009<0.0009mg/KgChlorodibromomethane 12/16/21 10:180.0100.0009<0.0009mg/KgChloroethane 12/16/21 10:180.0050.001<0.001mg/KgChloroform 12/16/21 10:180.0100.0006<0.0006mg/KgChloromethane 12/16/21 10:180.0050.0005<0.0005mg/Kg2-Chlorotoluene 12/16/21 10:180.0050.0004<0.0004mg/Kg4-Chlorotoluene 12/16/21 10:180.0050.0007<0.0007mg/KgDi-Isopropyl Ether (DIPE) 12/16/21 10:180.0100.0004<0.0004mg/Kg1,2-Dibromo-3-Chloropropane 12/16/21 10:180.0050.0006<0.0006mg/Kg1,2-Dibromoethane 12/16/21 10:180.0050.0010<0.0010mg/KgDibromomethane 12/16/21 10:180.0050.0003<0.0003mg/Kg1,2-Dichlorobenzene 12/16/21 10:180.0050.0004<0.0004mg/Kg1,3-Dichlorobenzene Page 1 of 8Date:12/20/2021 03:35 PM Page 11 of 20 Quality Control Data 21-349-0019Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12940QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V12939 Associated Lab Samples: 90672 LRB-V12939 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 12/16/21 10:180.0050.0006<0.0006mg/Kg1,4-Dichlorobenzene 12/16/21 10:180.0100.001<0.001mg/KgDichlorodifluoromethane 12/16/21 10:180.0050.0008<0.0008mg/Kg1,1-Dichloroethane 12/16/21 10:180.0050.001<0.001mg/Kg1,2-Dichloroethane 12/16/21 10:180.0050.0007<0.0007mg/Kg1,1-Dichloroethene 12/16/21 10:180.0050.0008<0.0008mg/Kgcis-1,2-Dichloroethene 12/16/21 10:180.0050.001<0.001mg/Kgtrans-1,2-Dichloroethene 12/16/21 10:180.0050.0004<0.0004mg/Kg1,2-Dichloropropane 12/16/21 10:180.0050.0006<0.0006mg/Kg1,3-Dichloropropane 12/16/21 10:180.0050.001<0.001mg/Kg2,2-Dichloropropane 12/16/21 10:180.0050.0008<0.0008mg/Kg1,1-Dichloropropene 12/16/21 10:180.0050.0005<0.0005mg/Kgcis-1,3-Dichloropropene 12/16/21 10:180.0050.0008<0.0008mg/Kgtrans-1,3-Dichloropropene 12/16/21 10:180.0050.0006<0.0006mg/KgEthylbenzene 12/16/21 10:180.1000.0008<0.0008mg/KgEthyl Tertiary Butyl Ether (ETBE) 12/16/21 10:180.0100.0008<0.0008mg/KgHexachlorobutadiene 12/16/21 10:180.0100.0007<0.0007mg/Kgn-Hexane 12/16/21 10:180.0200.0006<0.0006mg/Kg2-Hexanone 12/16/21 10:180.0050.0005<0.0005mg/KgIsopropylbenzene 12/16/21 10:180.0050.001<0.001mg/Kg4-Isopropyl toluene 12/16/21 10:180.0200.0007<0.0007mg/KgMethyl Ethyl Ketone (MEK) 12/16/21 10:180.0050.0006<0.0006mg/KgMethyl tert-butyl ether (MTBE) 12/16/21 10:180.0050.001<0.001mg/KgMethylene Chloride 12/16/21 10:180.0100.0010<0.0010mg/KgNaphthalene 12/16/21 10:180.0050.0005<0.0005mg/Kgn-Propylbenzene 12/16/21 10:180.0050.001<0.001mg/KgStyrene 12/16/21 10:180.0050.001<0.001mg/Kg1,1,1,2-Tetrachloroethane Page 2 of 8Date:12/20/2021 03:35 PM Page 12 of 20 Quality Control Data 21-349-0019Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12940QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V12939 Associated Lab Samples: 90672 LRB-V12939 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 12/16/21 10:180.0050.0003<0.0003mg/Kg1,1,2,2-Tetrachloroethane 12/16/21 10:180.0050.0009<0.0009mg/KgTetrachloroethene 12/16/21 10:180.0050.0007<0.0007mg/KgToluene 12/16/21 10:180.0100.0005<0.0005mg/Kg1,2,3-Trichlorobenzene 12/16/21 10:180.0100.0006<0.0006mg/Kg1,2,4-Trichlorobenzene 12/16/21 10:180.0050.001<0.001mg/Kg1,1,1-Trichloroethane 12/16/21 10:180.0050.0005<0.0005mg/Kg1,1,2-Trichloroethane 12/16/21 10:180.0050.0009<0.0009mg/KgTrichloroethene 12/16/21 10:180.0100.002<0.002mg/KgTrichlorofluoromethane 12/16/21 10:180.0050.0007<0.0007mg/Kg1,2,3-Trichloropropane 12/16/21 10:180.0050.0005<0.0005mg/Kg1,2,4-Trimethylbenzene 12/16/21 10:180.0050.0005<0.0005mg/Kg1,3,5-Trimethylbenzene 12/16/21 10:180.0100.0005<0.0005mg/KgVinyl Acetate 12/16/21 10:180.0100.0005<0.0005mg/KgVinyl Chloride 12/16/21 10:180.0050.0005<0.0005mg/Kgo-Xylene 12/16/21 10:180.0100.001<0.001mg/Kgm,p-Xylene 12/16/21 10:184-Bromofluorobenzene (S)99.8 70-130 12/16/21 10:18Dibromofluoromethane (S)102 70-130 12/16/21 10:18Toluene-d8 (S)88.2 76-129 LCS-V12939 LCSD-V12939Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.118 1181170.1170.100mg/KgAcetone 29-198 0.8 20 0.123 1231190.1190.100mg/KgAcrolein 70-130 3.3 20 0.116 1161090.1090.100mg/KgAcrylonitrile 65-134 6.2 20 Page 3 of 8Date:12/20/2021 03:35 PM Page 13 of 20 Quality Control Data 21-349-0019Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12940QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V12939 LCS-V12939 LCSD-V12939Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.052 1041050.0520.050mg/KgBenzene 74-127 0.9 20 0.042 85.084.80.0420.050mg/KgBromobenzene 73-125 0.2 20 0.055 1111100.0540.050mg/KgBromochloromethane 72-134 1.2 20 0.053 1061040.0520.050mg/KgBromodichloromethane 75-122 1.5 20 0.050 10199.00.0490.050mg/KgBromoform 66-135 2.3 20 0.050 1001040.0520.050mg/KgBromomethane 20-180 3.9 20 0.043 87.091.40.0450.050mg/Kgn-Butylbenzene 65-135 4.9 20 0.043 86.090.40.0450.050mg/Kgsec-Butyl benzene 66-131 4.9 20 0.042 84.888.20.0440.050mg/Kgtert-Butyl benzene 67-132 3.9 20 0.051 1031080.0540.050mg/KgCarbon Disulfide 61-129 5.1 20 0.051 1041100.0540.050mg/KgCarbon Tetrachloride 64-143 5.4 20 0.046 93.294.80.0470.050mg/KgChlorobenzene 74-118 1.7 20 0.049 98.495.80.0470.050mg/KgChlorodibromomethane 73-122 2.6 20 0.052 1061080.0530.050mg/KgChloroethane 33-149 1.8 20 0.050 1001020.0510.050mg/KgChloroform 73-127 1.5 20 0.055 1111150.0570.050mg/KgChloromethane 45-143 3.7 20 0.042 85.286.60.0430.050mg/Kg2-Chlorotoluene 67-124 1.6 20 0.041 83.886.60.0430.050mg/Kg4-Chlorotoluene 71-126 3.2 20 0.053 1071070.0530.050mg/KgDi-Isopropyl Ether (DIPE)59-159 0.7 20 0.047 95.491.40.0450.050mg/Kg1,2-Dibromo-3-Chloropropane 55-157 4.2 20 0.049 98.295.80.0470.050mg/Kg1,2-Dibromoethane 70-132 2.4 20 0.054 1091070.0530.050mg/KgDibromomethane 74-133 2.0 20 0.042 85.086.60.0430.050mg/Kg1,2-Dichlorobenzene 72-123 1.8 20 0.042 84.687.80.0430.050mg/Kg1,3-Dichlorobenzene 71-120 3.7 20 0.042 85.486.20.0430.050mg/Kg1,4-Dichlorobenzene 71-123 0.9 20 0.056 1131190.0590.050mg/KgDichlorodifluoromethane 26-146 4.6 20 Page 4 of 8Date:12/20/2021 03:35 PM Page 14 of 20 Quality Control Data 21-349-0019Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12940QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V12939 LCS-V12939 LCSD-V12939Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.051 1041050.0520.050mg/Kg1,1-Dichloroethane 74-127 1.5 20 0.053 1071070.0530.050mg/Kg1,2-Dichloroethane 68-128 0.3 20 0.051 1031090.0540.050mg/Kg1,1-Dichloroethene 67-149 5.4 20 0.052 1041050.0520.050mg/Kgcis-1,2-Dichloroethene 76-134 0.7 20 0.051 1031070.0530.050mg/Kgtrans-1,2-Dichloroethene 73-132 3.4 20 0.053 1061050.0520.050mg/Kg1,2-Dichloropropane 73-130 0.7 20 0.048 96.895.00.0470.050mg/Kg1,3-Dichloropropane 75-124 1.8 20 0.051 1041090.0540.050mg/Kg2,2-Dichloropropane 50-142 4.7 20 0.053 1061080.0540.050mg/Kg1,1-Dichloropropene 71-130 1.8 20 0.054 1091070.0530.050mg/Kgcis-1,3-Dichloropropene 71-125 1.4 20 0.054 1091080.0540.050mg/Kgtrans-1,3-Dichloropropene 68-123 0.5 20 0.045 91.294.40.0470.050mg/KgEthylbenzene 74-128 3.4 20 0.110 1101090.1090.100mg/KgEthyl Tertiary Butyl Ether (ETBE)70-130 0.9 20 0.042 85.089.00.0440.050mg/KgHexachlorobutadiene 64-125 4.5 20 0.053 1071100.0550.050mg/Kgn-Hexane 70-130 3.5 20 0.057 1161130.0560.050mg/Kg2-Hexanone 61-157 2.6 20 0.042 84.487.40.0430.050mg/KgIsopropylbenzene 68-126 3.4 20 0.043 86.689.80.0440.050mg/Kg4-Isopropyl toluene 68-129 3.6 20 0.056 1121110.0550.050mg/KgMethyl Ethyl Ketone (MEK)63-149 0.8 20 0.055 1101070.0530.050mg/KgMethyl tert-butyl ether (MTBE)70-130 2.7 20 0.046 92.892.80.0460.050mg/KgMethylene Chloride 74-129 0.0 20 0.045 91.087.60.0430.050mg/KgNaphthalene 57-157 3.8 20 0.042 85.288.60.0440.050mg/Kgn-Propylbenzene 67-130 3.9 20 0.047 94.496.40.0480.050mg/KgStyrene 77-121 2.0 20 0.047 94.894.80.0470.050mg/Kg1,1,1,2-Tetrachloroethane 72-115 0.0 20 0.044 89.285.60.0420.050mg/Kg1,1,2,2-Tetrachloroethane 56-126 4.1 20 Page 5 of 8Date:12/20/2021 03:35 PM Page 15 of 20 Quality Control Data 21-349-0019Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart QC Prep Batch Method: Volatile Organic Compounds - GC/MS 8260D V12940QC Analytical Batch(es): Analysis Method: Analysis Description: 5035 MED QC Prep:V12939 LCS-V12939 LCSD-V12939Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 0.051 1031090.0540.050mg/KgTetrachloroethene 68-130 5.4 20 0.051 1021050.0520.050mg/KgToluene 71-129 2.3 20 0.042 85.085.20.0420.050mg/Kg1,2,3-Trichlorobenzene 68-130 0.2 20 0.042 85.886.80.0430.050mg/Kg1,2,4-Trichlorobenzene 66-125 1.1 20 0.051 1031050.0520.050mg/Kg1,1,1-Trichloroethane 67-131 2.4 20 0.048 97.896.00.0480.050mg/Kg1,1,2-Trichloroethane 70-133 1.8 20 0.051 1021080.0530.050mg/KgTrichloroethene 75-133 5.3 20 0.054 1091170.0580.050mg/KgTrichlorofluoromethane 44-146 6.5 20 0.045 90.287.80.0430.050mg/Kg1,2,3-Trichloropropane 60-137 2.6 20 0.042 85.088.00.0440.050mg/Kg1,2,4-Trimethylbenzene 69-129 3.4 20 0.042 85.288.20.0440.050mg/Kg1,3,5-Trimethylbenzene 69-128 3.4 20 0.060 1211080.0540.050mg/KgVinyl Acetate 60-140 10.9 20 0.052 1051110.0550.050mg/KgVinyl Chloride 48-147 5.7 20 0.046 93.296.00.0480.050mg/Kgo-Xylene 74-126 2.9 20 0.093 93.596.80.0960.100mg/Kgm,p-Xylene 75-124 3.4 20 96.896.84-Bromofluorobenzene (S)70-130 99.498.4Dibromofluoromethane (S)70-130 89.290.2Toluene-d8 (S)76-129 Page 6 of 8Date:12/20/2021 03:35 PM Page 16 of 20 Quality Control Data 21-349-0019Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart QC Prep Batch Method: Massachusetts VPH MADEP-VPH V12885QC Analytical Batch(es): Analysis Method: Analysis Description: MAVPH (Prep) QC Prep:V12884 Associated Lab Samples: 90672 LRB-V12884 Matrix: SOLLab Reagent Blank Parameter AnalyzedMQLMDLBlank ResultUnits % Recovery % Rec Limits 12/16/21 12:588.001.22<1.22mg/KgAliphatic C5-C8 12/16/21 12:588.004.56<4.56mg/KgAliphatic C9-C12 12/16/21 12:588.000.624<0.624mg/KgAromatic C9-C10 12/16/21 12:582,5-Dibromotoluene (FID) (S)81.4 70-130 12/16/21 12:582,5-Dibromotoluene (PID) (S)83.9 70-130 LCS-V12884 LCSD-V12884Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 31.8 99.395.330.532.0mg/KgAliphatic C5-C8 70-130 4.1 50 37.6 11811436.432.0mg/KgAliphatic C9-C12 70-130 3.2 50 12.6 11811512.310.7mg/KgAromatic C9-C10 70-130 2.4 50 81.680.42,5-Dibromotoluene (FID) (S)70-130 84.183.12,5-Dibromotoluene (PID) (S)70-130 Page 7 of 8Date:12/20/2021 03:35 PM Page 17 of 20 Quality Control Data 21-349-0019Report No: Project Description: Client ID:Paragon Environmental Consultants, Inc. Quick Food Mart Dry Weight Determination SW-DRYWT V12985QC Analytical Batch: Analysis Method: Analysis Description: V 90668-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 12/17/21 13:530.920.620.8%Moisture V 90744-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 12/17/21 13:533.710.410.8%Moisture Page 8 of 8Date:12/20/2021 03:35 PM Page 18 of 20 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:21-349-0019 Paragon Environmental Consultants, Inc. 01156 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT-15 0.2C 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 ü 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:Sarah J. Locklear Date & Time:12/15/2021 16:56:54 Special precautions or instructions included? Comments: Page 19 of 20 Page 20 of 20