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HomeMy WebLinkAboutAS-3614_28751_CA_MRP_20200106 January 6, 2020 Mr. Scott Ryals NCDEQ, Division of Waste Management, UST Section 1646 Mail Service Center Raleigh, North Carolina 27699-1646 Reference: Groundwater Monitoring Letter Report Former Hind’s Store 6641 US Highway 221 Mooresboro, Rutherford County, North Carolina NCDEQ Incident No. 28751 NCDEQ Contract No. N17006 ECS Project No. 49:8977-A Dear Mr. Ryals: As authorized by Task Authorization Request (TAR) No. 2 dated November 12, 2019, ECS Southeast, LLP (ECS) recently collected one groundwater sample from monitoring well MW-2 and MW-3. The site is located at 6641 US Highway 221, Mooresboro, Rutherford County, North Carolina (Figure 1). This letter, with attachments, presents the findings of our groundwater sampling event. Field Activities On December 19, 2019, personnel from ECS mobilized to the site to gauge and sample monitoring wells MW-2 and MW-3 (Figure 2). Monitoring well MW-3 could not be sampled due to the O-Sox that was installed in 2015 being lodged in the monitoring well and which could not readily be removed. Photographs of the site are attached to this letter. It appears that the monitoring well has been damaged, which is preventing the O-Sox from being removed from the well. Monitoring well MW-2 was purged by removing three well volumes with a disposable bailer and nylon cord. After purging was completed, a groundwater sample was collected from the well and transferred into laboratory preserved/provided sample containers. The field sampling notes are attached. The sample containers were labeled with ECS project number, sample identification, sample date and time, and requested analytical analysis. The containers were placed into protective packaging material and placed into a cooler with ice to maintain the sample at approximately four degrees and submitted to Pace Analytical Services, LLC in Huntersville, North Carolina (NC certification #12) for chemical analysis. The sample was analyzed for volatile organic compounds using Standard Method 6200B. Chain-of-custody (COC) procedures were followed from sample collection through the transportation process. A copy of the COC is attached. Groundwater Sample Results Review of the laboratory analytical results of the sample collected from monitoring well MW-2 indicated benzene and naphthalene at concentrations greater than their respective North Carolina 2L Groundwater Quality Standards (NC2LGWQS), but less than their respective Gross Contamination Levels. Additional compounds were indicated at concentrations greater than the SOURCE: USGS TOPOGRAPHIC MAP CHESNEE, SC-NC QUADRANGLE DATED 1993 CONTOUR INTERVAL = 6 METERS SCALE: 1 : 24,000 SITE FIGURE 1 SITE LOCATION MAPFORMER HINDS STORE 6641 US HIGHWAY 221MOORESBORO, RUTHERFORD COUNTY, NORTH CAROLINAINCIDENT NUMBER TF-28751ECS PROJECT: 49:8977-A FIGURE 2MONITORING WELL LOCATION MAPFORMER HINDS STORE 6641 US HIGHWAY 221MOORESBORO, RUTHERFORD COUNTY, NORTH CAROLINAINCIDENT NUMBER TF-28751ECS PROJECT: 49:8977-A LEGEND Approximate Monitoring Well LocationMW-1 SOURCE: SKETCH AND FIELD NOTES BY ECS PERSONNEL Former Hinds Store Driveway Rip-rap U/G Storm water pipe U/G Storm water pipe Hines Rd MW-1(Destroyed) MW-2 MW-4 (Not Present) MW-3 MW-1R(Not Present) Suspected Former UST Basin Former UST Location Table 1 Summary of Groundwater Analytical Results Former Hinds Store 6641 US Highway 221 Mooresboro, Rutherford County, North Carolina NCDEQ Incident No.: 28751 ECS Project No.: 49:8977-A Volatile Organic Compounds by Standard Method 6200B or equivalent Benzenen-Butylbenzenesec-ButylbenzeneChoroethaneChloroform2-Chlorotoluene1,2-Dibromoethane1,2-Dichloroethane1,2-DichloropropaneDiisopropyl etherEthylbenzeneIsopropylbenzenep-IsopropyltolueneMethyl tert butyl etherNaphthalenen-PropylbenzeneStyrene1,1,2,2-TetrachloroethaneToluene1,2,4-Trimethylbenzene1,3,5-TrimethylbenzeneTotal xylenesNC2LGWS 1 70 70 NA 70 NA 0.02 6 0.6 70 600 70 25 20 6 70 70 0.2 600 400 400 500 GCL 5,000 6,900 6,900 NA 70,000 NA 50 6,000 600 700,000 84,500 25,000 11,700 20,000 6,000 30,000 70,000 200 260,000 28,500 25,000 85,500 MW-1 02/24/12 250 BRL BRL BRL BRL BRL BRL BRL BRL 110 880 BRL BRL 3,700 200 BRL BRL BRL 2,300 BRL BRL 5,100 06/01/12 250 BRL 11J BRL BRL BRL 4.9 BRL BRL BRL 1,200 89 BRL BRL 370 110 BRL BRL 4,200 900 310 5,900 08/10/12 540 36 11 BRL 9.7J 150 11 BRL BRL BRL 1,800 120 27 BRL 500 130 BRL BRL 6,100 1,100 370 8,600 03/07/13 894 <0.5 478 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 1,790 103 <0.5 <0.5 459 109 38.5 <0.5 9,020 1,010 348 8,780 08/27/14 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/01/12 180 BRL 0.84J BRL BRL BRL 2.3 BRL BRL BRL 92 13 BRL BRL 27 12 BRL BRL 370 120 29 690 08/10/12 470 15 5.1 0.81J BRL 85 13 12 BRL BRL 240 54 14 BRL 240 47 BRL 2.1 1,500 620 200 3,600 03/07/13 1,870 <0.5 <0.5 <0.5 <0.5 <0.5 67 <0.5 <0.5 <0.5 594 41.2 <0.5 <0.5 338 36.6 <0.5 <0.5 8,820 649 208 5,640 08/27/14 138 <0.5 <0.5 <0.5 <0.5 <0.5 3.1 0.65 <0.5 <0.5 36.5 12.7 <0.5 <0.5 61.7 12.7 <0.5 <0.5 130 130 36.2 414 05/22/19 380 4.8 J 17 <5.0 <5.0 <5.0 11 <5.0 <5.0 <5.0 270 43 9.6 <10 160 53 4.4 J <5.0 2,200 460 150 2,200 12/18/19 6.5 <0.5 <0.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 3.8 1.7 NA <0.5 9.8 1.0 <0.5 <0.5 7.4 33.1 15.5 136 06/01/12 4,200 BRL BRL BRL BRL BRL 120 BRL BRL BRL 1,500 100 BRL BRL 340 140 BRL BRL 15,000 1,300 450 7,800 08/10/12 1,400 44 11 BRL BRL 140 38 38 12 1.4J 650 78 26 BRL 330 110 BRL BRL 5,400 1,200 430 3,900 03/07/13 15.1 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 77.7 12.2 <0.5 <0.5 26.4 15.5 0.93 <0.5 165 126 62.2 445 08/27/14 1,860 <0.5 <0.5 <0.5 <0.5 <0.5 182 8.3 9.9 <0.5 378 24.5 <0.5 <0.5 181 22.8 <0.5 <0.5 7,900 164 80.8 2,153 06/01/12 0.32J BRL BRL BRL BRL BRL 0.023 BRL BRL BRL 0.75 BRL BRL BRL 0.24J 0.25J NA NA 2.3 1.7 0.73 4.0 08/10/12 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 03/07/13 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 08/27/14 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS SW-1 02/24/12 570 BRL BRL BRL BRL BRL BRL BRL BRL 0.41J 240 BRL BRL BRL NS BRL BRL BRL 1,200 BRL BRL 1,200 05/31/12 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 03/07/13 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 08/27/14 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 05/31/12 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 03/07/13 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 08/27/14 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 06/01/12 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 08/10/12 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 03/07/13 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 08/27/14 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 11/12/15 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 05/31/12 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 08/27/14 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 11/12/15 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 Notes: Only compounds detected are shown All concentrations presented in micrograms per liter (µg/L) NC2LGWQS = North Carolina 2L Groundwater Quality Standard GCL = Gross Contamination Levels J = Estimated concentration detected between laboratory method reporting limit and detection limit NS = Not Sampled BRL = Below Reporting Limit VALUE = concentraiton exceeds laboratory method reporting limits VALUE = concentration exceeds NC2LGWQS VALUE = concentration exceeds GCL Sample DateSample ID MW-2 WSW-22 WSW-24 WSW-26 MW-3 MW-1R MW-4 WSW-25 PHOTOGRAPH LOG FORMER HINDS STORE 6641 US HIGHWAY 221MOORESBORO, RUTHERFORD COUNTY, NORTH CAROLINAINCIDENT NUMBER TF-28751 ECS PROJECT NO. 49:8977-A Photograph 1: View of monitoring well MW-2 located west of the site. Photograph 2: View of monitoring well MW-3 located west of the site. Photograph 3: View of the location of monitoring well MW-1R, facing south. Monitoring well MW-1R was not observed during the site visit. Photograph 4: View of the location of monitoring well MW-4, facing north. Monitoring well MW-4 was not observed during the site visit. PHOTOGRAPH LOG FORMER HINDS STORE 6641 US HIGHWAY 221MOORESBORO, RUTHERFORD COUNTY, NORTH CAROLINAINCIDENT NUMBER TF-28751 ECS PROJECT NO. 49:8977-A Photograph 5: View of water-supply well WSW-25 located at 6660 US Highway 221 South. Photograph 6: View of the spigot associated with water-supply well WSW-25 located at 6660 US Highway 221 South. PHOTOGRAPH LOG FORMER HINDS STORE 6641 US HIGHWAY 221MOORESBORO, RUTHERFORD COUNTY, NORTH CAROLINAINCIDENT NUMBER TF-28751 ECS PROJECT NO. 49:8977-A Photograph 7: View of water-supply well WSW-26 located at 6674 US Highway 221 South. Photograph 8: View of the spigot associated with water-supply well WSW-26 located at 6674 US Highway 221 South. PHOTOGRAPH LOG FORMER HINDS STORE 6641 US HIGHWAY 221MOORESBORO, RUTHERFORD COUNTY, NORTH CAROLINAINCIDENT NUMBER TF-28751 ECS PROJECT NO. 49:8977-A Photograph 9: Close up view of monitoring well MW-3. Crimped portion of well is located on the right of the interior of the well casing. PHOTOGRAPH LOG FORMER HINDS STORE 6641 US HIGHWAY 221MOORESBORO, RUTHERFORD COUNTY, NORTH CAROLINAINCIDENT NUMBER TF-28751 ECS PROJECT NO. 49:8977-A #=CL# December 27, 2019 LIMS USE: FR - SCOTT YOUNG LIMS OBJECT ID: 92458266 92458266 Project: Pace Project No.: RE: Scott Young ECS Southeast, LLP 1900 Center Park Dr Charlotte, NC 28217 NCDEQ Former Hinds Store Dear Scott Young: Enclosed are the analytical results for sample(s) received by the laboratory on December 19, 2019. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Angela Baioni for taylor.ezell@pacelabs.com Project Manager Taylor Ezell (704)875-9092 Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 17 #=CP# CERTIFICATIONS Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Pace Analytical Services Charlotte 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 Louisiana/NELAP Certification # LA170028 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 17 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Lab ID Sample ID Matrix Date Collected Date Received 92458266001 MW-2 Water 12/19/19 12:45 12/19/19 13:30 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 17 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92458266001 MW-2 SM 6200B 63 PASI-CCL REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 17 #=HO# SUMMARY OF DETECTION Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Parameters AnalyzedResult Lab Sample ID Report Limit QualifiersUnitsMethod Client Sample ID 92458266001 MW-2 Benzene 6.5 ug/L 12/23/19 19:330.50SM 6200B Ethylbenzene 3.8 ug/L 12/23/19 19:330.50SM 6200B Isopropylbenzene (Cumene)1.7 ug/L 12/23/19 19:330.50SM 6200B Naphthalene 9.8 ug/L 12/23/19 19:332.0SM 6200B n-Propylbenzene 1.0 ug/L 12/23/19 19:330.50SM 6200B Toluene 7.4 ug/L 12/23/19 19:330.50SM 6200B 1,2,4-Trimethylbenzene 33.1 ug/L 12/23/19 19:330.50SM 6200B 1,3,5-Trimethylbenzene 15.5 ug/L 12/23/19 19:330.50SM 6200B m&p-Xylene 74.2 ug/L 12/23/19 19:331.0SM 6200B o-Xylene 61.6 ug/L 12/23/19 19:330.50SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Sample:MW-2 Lab ID:92458266001 Collected:12/19/19 12:45 Received:12/19/19 13:30 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B6200B MSV Benzene 6.5 ug/L 12/23/19 19:33 71-43-20.50 0.24 1 Bromobenzene ND ug/L 12/23/19 19:33 108-86-10.50 0.22 1 Bromochloromethane ND ug/L 12/23/19 19:33 74-97-50.50 0.26 1 Bromodichloromethane ND ug/L 12/23/19 19:33 75-27-40.50 0.18 1 Bromoform ND ug/L 12/23/19 19:33 75-25-20.50 0.40 1 Bromomethane ND ug/L 12/23/19 19:33 74-83-95.0 1.7 1 n-Butylbenzene ND ug/L 12/23/19 19:33 104-51-80.50 0.35 1 sec-Butylbenzene ND ug/L 12/23/19 19:33 135-98-80.50 0.25 1 tert-Butylbenzene ND ug/L 12/23/19 19:33 98-06-60.50 0.25 1 Carbon tetrachloride ND ug/L 12/23/19 19:33 56-23-50.50 0.23 1 Chlorobenzene ND ug/L 12/23/19 19:33 108-90-70.50 0.22 1 Chloroethane ND ug/L 12/23/19 19:33 75-00-31.0 0.58 1 Chloroform ND ug/L 12/23/19 19:33 67-66-30.50 0.35 1 Chloromethane ND ug/L 12/23/19 19:33 74-87-31.0 0.42 1 2-Chlorotoluene ND ug/L 12/23/19 19:33 95-49-80.50 0.21 1 4-Chlorotoluene ND ug/L 12/23/19 19:33 106-43-40.50 0.21 1 1,2-Dibromo-3-chloropropane ND ug/L 12/23/19 19:33 96-12-81.0 0.38 1 Dibromochloromethane ND ug/L 12/23/19 19:33 124-48-10.50 0.40 1 1,2-Dibromoethane (EDB)ND ug/L 12/23/19 19:33 106-93-40.50 0.23 1 Dibromomethane ND ug/L 12/23/19 19:33 74-95-30.50 0.31 1 1,2-Dichlorobenzene ND ug/L 12/23/19 19:33 95-50-10.50 0.24 1 1,3-Dichlorobenzene ND ug/L 12/23/19 19:33 541-73-10.50 0.25 1 1,4-Dichlorobenzene ND ug/L 12/23/19 19:33 106-46-70.50 0.25 1 Dichlorodifluoromethane ND ug/L 12/23/19 19:33 75-71-80.50 0.28 1 1,1-Dichloroethane ND ug/L 12/23/19 19:33 75-34-30.50 0.24 1 1,2-Dichloroethane ND ug/L 12/23/19 19:33 107-06-20.50 0.26 1 1,1-Dichloroethene ND ug/L 12/23/19 19:33 75-35-40.50 0.22 1 cis-1,2-Dichloroethene ND ug/L 12/23/19 19:33 156-59-20.50 0.21 1 trans-1,2-Dichloroethene ND ug/L 12/23/19 19:33 156-60-50.50 0.26 1 1,2-Dichloropropane ND ug/L 12/23/19 19:33 78-87-50.50 0.18 1 1,3-Dichloropropane ND ug/L 12/23/19 19:33 142-28-90.50 0.34 1 2,2-Dichloropropane ND ug/L 12/23/19 19:33 594-20-70.50 0.28 1 1,1-Dichloropropene ND ug/L 12/23/19 19:33 563-58-60.50 0.35 1 cis-1,3-Dichloropropene ND ug/L 12/23/19 19:33 10061-01-50.50 0.36 1 trans-1,3-Dichloropropene ND ug/L 12/23/19 19:33 10061-02-60.50 0.39 1 Diisopropyl ether ND ug/L 12/23/19 19:33 108-20-30.50 0.33 1 Ethylbenzene 3.8 ug/L 12/23/19 19:33 100-41-40.50 0.24 1 Hexachloro-1,3-butadiene ND ug/L 12/23/19 19:33 87-68-32.0 1.2 1 Isopropylbenzene (Cumene)1.7 ug/L 12/23/19 19:33 98-82-80.50 0.24 1 Methylene Chloride ND ug/L 12/23/19 19:33 75-09-22.0 1.5 1 Methyl-tert-butyl ether ND ug/L 12/23/19 19:33 1634-04-40.50 0.44 1 Naphthalene 9.8 ug/L 12/23/19 19:33 91-20-32.0 0.66 1 n-Propylbenzene 1.0 ug/L 12/23/19 19:33 103-65-10.50 0.24 1 Styrene ND ug/L 12/23/19 19:33 100-42-50.50 0.26 1 1,1,1,2-Tetrachloroethane ND ug/L 12/23/19 19:33 630-20-60.50 0.42 1 1,1,2,2-Tetrachloroethane ND ug/L 12/23/19 19:33 79-34-50.50 0.19 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Sample:MW-2 Lab ID:92458266001 Collected:12/19/19 12:45 Received:12/19/19 13:30 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: SM 6200B6200B MSV Tetrachloroethene ND ug/L 12/23/19 19:33 127-18-40.50 0.23 1 Toluene 7.4 ug/L 12/23/19 19:33 108-88-30.50 0.23 1 1,2,3-Trichlorobenzene ND ug/L 12/23/19 19:33 87-61-62.0 0.78 1 1,2,4-Trichlorobenzene ND ug/L 12/23/19 19:33 120-82-12.0 0.44 1 1,1,1-Trichloroethane ND ug/L 12/23/19 19:33 71-55-60.50 0.28 1 1,1,2-Trichloroethane ND ug/L 12/23/19 19:33 79-00-50.50 0.23 1 Trichloroethene ND ug/L 12/23/19 19:33 79-01-60.50 0.23 1 Trichlorofluoromethane ND ug/L 12/23/19 19:33 75-69-41.0 0.34 1 1,2,3-Trichloropropane ND ug/L 12/23/19 19:33 96-18-40.50 0.27 1 1,2,4-Trimethylbenzene 33.1 ug/L 12/23/19 19:33 95-63-60.50 0.19 1 1,3,5-Trimethylbenzene 15.5 ug/L 12/23/19 19:33 108-67-80.50 0.23 1 Vinyl chloride ND ug/L 12/23/19 19:33 75-01-41.0 0.41 1 m&p-Xylene 74.2 ug/L 12/23/19 19:33 179601-23-11.0 0.44 1 o-Xylene 61.6 ug/L 12/23/19 19:33 95-47-60.50 0.24 1 Surrogates 1,2-Dichloroethane-d4 (S)95 %12/23/19 19:33 17060-07-070-130 1 4-Bromofluorobenzene (S)95 %12/23/19 19:33 460-00-470-130 1 Toluene-d8 (S)96 %12/23/19 19:33 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 516396 SM 6200B SM 6200B 6200B MSV Associated Lab Samples:92458266001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:2766773 Associated Lab Samples:92458266001 Matrix:Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L ND 0.50 12/23/19 11:480.42 1,1,1-Trichloroethane ug/L ND 0.50 12/23/19 11:480.28 1,1,2,2-Tetrachloroethane ug/L ND 0.50 12/23/19 11:480.19 1,1,2-Trichloroethane ug/L ND 0.50 12/23/19 11:480.23 1,1-Dichloroethane ug/L ND 0.50 12/23/19 11:480.24 1,1-Dichloroethene ug/L ND 0.50 12/23/19 11:480.22 1,1-Dichloropropene ug/L ND 0.50 12/23/19 11:480.35 1,2,3-Trichlorobenzene ug/L ND 2.0 12/23/19 11:480.78 1,2,3-Trichloropropane ug/L ND 0.50 12/23/19 11:480.27 1,2,4-Trichlorobenzene ug/L ND 2.0 12/23/19 11:480.44 1,2,4-Trimethylbenzene ug/L ND 0.50 12/23/19 11:480.19 1,2-Dibromo-3-chloropropane ug/L ND 1.0 12/23/19 11:480.38 1,2-Dibromoethane (EDB)ug/L ND 0.50 12/23/19 11:480.23 1,2-Dichlorobenzene ug/L ND 0.50 12/23/19 11:480.24 1,2-Dichloroethane ug/L ND 0.50 12/23/19 11:480.26 1,2-Dichloropropane ug/L ND 0.50 12/23/19 11:480.18 1,3,5-Trimethylbenzene ug/L ND 0.50 12/23/19 11:480.23 1,3-Dichlorobenzene ug/L ND 0.50 12/23/19 11:480.25 1,3-Dichloropropane ug/L ND 0.50 12/23/19 11:480.34 1,4-Dichlorobenzene ug/L ND 0.50 12/23/19 11:480.25 2,2-Dichloropropane ug/L ND 0.50 12/23/19 11:480.28 2-Chlorotoluene ug/L ND 0.50 12/23/19 11:480.21 4-Chlorotoluene ug/L ND 0.50 12/23/19 11:480.21 Benzene ug/L ND 0.50 12/23/19 11:480.24 Bromobenzene ug/L ND 0.50 12/23/19 11:480.22 Bromochloromethane ug/L ND 0.50 12/23/19 11:480.26 Bromodichloromethane ug/L ND 0.50 12/23/19 11:480.18 Bromoform ug/L ND 0.50 12/23/19 11:480.40 Bromomethane ug/L ND 5.0 12/23/19 11:481.7 Carbon tetrachloride ug/L ND 0.50 12/23/19 11:480.23 Chlorobenzene ug/L ND 0.50 12/23/19 11:480.22 Chloroethane ug/L ND 1.0 12/23/19 11:480.58 Chloroform ug/L ND 0.50 12/23/19 11:480.35 Chloromethane ug/L ND 1.0 12/23/19 11:480.42 cis-1,2-Dichloroethene ug/L ND 0.50 12/23/19 11:480.21 cis-1,3-Dichloropropene ug/L ND 0.50 12/23/19 11:480.36 Dibromochloromethane ug/L ND 0.50 12/23/19 11:480.40 Dibromomethane ug/L ND 0.50 12/23/19 11:480.31 Dichlorodifluoromethane ug/L ND 0.50 12/23/19 11:480.28 Diisopropyl ether ug/L ND 0.50 12/23/19 11:480.33 Ethylbenzene ug/L ND 0.50 12/23/19 11:480.24 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:2766773 Associated Lab Samples:92458266001 Matrix:Water AnalyzedMDL Hexachloro-1,3-butadiene ug/L ND 2.0 12/23/19 11:481.2 Isopropylbenzene (Cumene)ug/L ND 0.50 12/23/19 11:480.24 m&p-Xylene ug/L ND 1.0 12/23/19 11:480.44 Methyl-tert-butyl ether ug/L ND 0.50 12/23/19 11:480.44 Methylene Chloride ug/L ND 2.0 12/23/19 11:481.5 n-Butylbenzene ug/L ND 0.50 12/23/19 11:480.35 n-Propylbenzene ug/L ND 0.50 12/23/19 11:480.24 Naphthalene ug/L ND 2.0 12/23/19 11:480.66 o-Xylene ug/L ND 0.50 12/23/19 11:480.24 sec-Butylbenzene ug/L ND 0.50 12/23/19 11:480.25 Styrene ug/L ND 0.50 12/23/19 11:480.26 tert-Butylbenzene ug/L ND 0.50 12/23/19 11:480.25 Tetrachloroethene ug/L ND 0.50 12/23/19 11:480.23 Toluene ug/L ND 0.50 12/23/19 11:480.23 trans-1,2-Dichloroethene ug/L ND 0.50 12/23/19 11:480.26 trans-1,3-Dichloropropene ug/L ND 0.50 12/23/19 11:480.39 Trichloroethene ug/L ND 0.50 12/23/19 11:480.23 Trichlorofluoromethane ug/L ND 1.0 12/23/19 11:480.34 Vinyl chloride ug/L ND 1.0 12/23/19 11:480.41 1,2-Dichloroethane-d4 (S)%92 70-130 12/23/19 11:48 4-Bromofluorobenzene (S)%96 70-130 12/23/19 11:48 Toluene-d8 (S)%102 70-130 12/23/19 11:48 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 2766774LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 51.250 102 60-140 1,1,1-Trichloroethane ug/L 49.650 99 60-140 1,1,2,2-Tetrachloroethane ug/L 48.850 98 60-140 1,1,2-Trichloroethane ug/L 49.150 98 60-140 1,1-Dichloroethane ug/L 47.550 95 60-140 1,1-Dichloroethene ug/L 47.050 94 60-140 1,1-Dichloropropene ug/L 52.750 105 60-140 1,2,3-Trichlorobenzene ug/L 60.950 122 60-140 1,2,3-Trichloropropane ug/L 49.450 99 60-140 1,2,4-Trichlorobenzene ug/L 56.850 114 60-140 1,2,4-Trimethylbenzene ug/L 51.850 104 60-140 1,2-Dibromo-3-chloropropane ug/L 53.850 108 60-140 1,2-Dibromoethane (EDB)ug/L 50.850 102 60-140 1,2-Dichlorobenzene ug/L 53.150 106 60-140 1,2-Dichloroethane ug/L 44.150 88 60-140 1,2-Dichloropropane ug/L 49.950 100 60-140 1,3,5-Trimethylbenzene ug/L 50.950 102 60-140 1,3-Dichlorobenzene ug/L 51.550 103 60-140 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 2766774LABORATORY CONTROL SAMPLE: LCSSpike 1,3-Dichloropropane ug/L 51.050 102 60-140 1,4-Dichlorobenzene ug/L 52.650 105 60-140 2,2-Dichloropropane ug/L 56.550 113 60-140 2-Chlorotoluene ug/L 49.450 99 60-140 4-Chlorotoluene ug/L 51.150 102 60-140 Benzene ug/L 48.950 98 60-140 Bromobenzene ug/L 51.950 104 60-140 Bromochloromethane ug/L 48.850 98 60-140 Bromodichloromethane ug/L 50.650 101 60-140 Bromoform ug/L 51.950 104 60-140 Bromomethane ug/L 58.250 116 60-140 Carbon tetrachloride ug/L 50.950 102 60-140 Chlorobenzene ug/L 50.450 101 60-140 Chloroethane ug/L 51.650 103 60-140 Chloroform ug/L 48.550 97 60-140 Chloromethane ug/L 40.650 81 60-140 cis-1,2-Dichloroethene ug/L 46.750 93 60-140 cis-1,3-Dichloropropene ug/L 52.250 104 60-140 Dibromochloromethane ug/L 53.450 107 60-140 Dibromomethane ug/L 51.650 103 60-140 Dichlorodifluoromethane ug/L 49.550 99 60-140 Diisopropyl ether ug/L 46.450 93 60-140 Ethylbenzene ug/L 49.050 98 60-140 Hexachloro-1,3-butadiene ug/L 53.450 107 60-140 Isopropylbenzene (Cumene)ug/L 50.850 102 60-140 m&p-Xylene ug/L 100100 100 60-140 Methyl-tert-butyl ether ug/L 50.650 101 60-140 Methylene Chloride ug/L 44.050 88 60-140 n-Butylbenzene ug/L 52.350 105 60-140 n-Propylbenzene ug/L 49.350 99 60-140 Naphthalene ug/L 60.550 121 60-140 o-Xylene ug/L 50.950 102 60-140 sec-Butylbenzene ug/L 50.950 102 60-140 Styrene ug/L 52.850 106 60-140 tert-Butylbenzene ug/L 43.450 87 60-140 Tetrachloroethene ug/L 49.650 99 60-140 Toluene ug/L 48.350 97 60-140 trans-1,2-Dichloroethene ug/L 48.150 96 60-140 trans-1,3-Dichloropropene ug/L 50.950 102 60-140 Trichloroethene ug/L 50.150 100 60-140 Trichlorofluoromethane ug/L 45.750 91 60-140 Vinyl chloride ug/L 49.050 98 60-140 1,2-Dichloroethane-d4 (S)%98 70-130 4-Bromofluorobenzene (S)%100 70-130 Toluene-d8 (S)%97 70-130 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 2766775MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92458265003 2766776 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 4000 92 60-14088 5 304000ND36903520 1,1,1-Trichloroethane ug/L 4000 91 60-14087 4 304000ND36503500 1,1,2,2-Tetrachloroethane ug/L 4000 86 60-14084 2 304000ND34403380 1,1,2-Trichloroethane ug/L 4000 91 60-14086 6 304000ND36503430 1,1-Dichloroethane ug/L 4000 92 60-14087 5 304000ND36603490 1,1-Dichloroethene ug/L 4000 93 60-14091 3 304000ND37403620 1,1-Dichloropropene ug/L 4000 97 60-14092 5 304000ND38803690 1,2,3-Trichlorobenzene ug/L 4000 85 60-14098 14 304000ND34003900 1,2,3-Trichloropropane ug/L 4000 91 60-14085 6 304000ND36303420 1,2,4-Trichlorobenzene ug/L 4000 87 60-14097 11 304000ND34803870 1,2,4-Trimethylbenzene ug/L 4000 100 60-14094 4 304000133053305100 1,2-Dibromo-3- chloropropane ug/L 4000 83 60-14088 6 304000ND33103520 1,2-Dibromoethane (EDB)ug/L 4000 93 60-14090 4 304000ND37203580 1,2-Dichlorobenzene ug/L 4000 95 60-14093 2 304000ND38003720 1,2-Dichloroethane ug/L 4000 87 60-14082 6 304000ND34703280 1,2-Dichloropropane ug/L 4000 93 60-14085 9 304000ND37203400 1,3,5-Trimethylbenzene ug/L 4000 97 60-14092 4 30400029441603990 1,3-Dichlorobenzene ug/L 4000 95 60-14092 4 304000ND38103670 1,3-Dichloropropane ug/L 4000 93 60-14090 3 304000ND37203610 1,4-Dichlorobenzene ug/L 4000 96 60-14092 4 304000ND38203680 2,2-Dichloropropane ug/L 4000 90 60-14091 1 304000ND36103660 2-Chlorotoluene ug/L 4000 97 60-14091 6 304000ND38703650 4-Chlorotoluene ug/L 4000 95 60-14090 5 304000ND37903600 Benzene ug/L 4000 101 60-14086 6 304000577098109220 Bromobenzene ug/L 4000 98 60-14092 6 304000ND39303690 Bromochloromethane ug/L 4000 92 60-14089 4 304000ND37003560 Bromodichloromethane ug/L 4000 89 60-14086 4 304000ND35603430 Bromoform ug/L 4000 87 60-14084 4 304000ND34803350 Bromomethane ug/L R140006660-14090 31 304000ND26303610 Carbon tetrachloride ug/L 4000 98 60-14089 9 304000ND39203570 Chlorobenzene ug/L 4000 93 60-14090 3 304000ND37303610 Chloroethane ug/L 4000 130 60-140122 6 304000ND52004880 Chloroform ug/L 4000 92 60-14088 5 304000ND37003530 Chloromethane ug/L 4000 77 60-14066 15 304000ND30902650 cis-1,2-Dichloroethene ug/L 4000 89 60-14086 3 304000ND35503430 cis-1,3-Dichloropropene ug/L 4000 95 60-14087 9 304000ND38003480 Dibromochloromethane ug/L 4000 91 60-14087 4 304000ND36203490 Dibromomethane ug/L 4000 94 60-14084 11 304000ND37703370 Dichlorodifluoromethane ug/L 4000 82 60-14080 3 304000ND32703180 Diisopropyl ether ug/L 4000 84 60-14080 4 30400022035903440 Ethylbenzene ug/L 4000 95 60-14091 3 304000148052705130 Hexachloro-1,3-butadiene ug/L 4000 93 60-14092 0 304000ND37003690 Isopropylbenzene(Cumene)ug/L 4000 98 60-14093 5 304000ND39003730 m&p-Xylene ug/L 8000 99 60-14092 4 30800058601370013200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 2766775MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92458265003 2766776 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Methyl-tert-butyl ether ug/L M1400013560-140147 2 304000222002760028000 Methylene Chloride ug/L 4000 89 60-14085 4 304000ND35803420 n-Butylbenzene ug/L 4000 95 60-14093 2 304000ND37903730 n-Propylbenzene ug/L 4000 94 60-14089 6 30400014039103700 Naphthalene ug/L 4000 91 60-14098 7 304000174J38204100 o-Xylene ug/L 4000 98 60-14094 3 304000288068106620 sec-Butylbenzene ug/L 4000 96 60-14092 5 304000ND38503680 Styrene ug/L 4000 96 60-14094 2 304000ND38503760 tert-Butylbenzene ug/L 4000 83 60-14079 5 304000ND33103150 Tetrachloroethene ug/L 4000 92 60-14089 4 304000ND37003550 Toluene ug/L 4000 104 60-14077 5 304000191002320022100 trans-1,2-Dichloroethene ug/L 4000 93 60-14090 3 304000ND37003610 trans-1,3-Dichloropropene ug/L 4000 90 60-14083 8 304000ND36103320 Trichloroethene ug/L 4000 96 60-14086 12 304000ND38603430 Trichlorofluoromethane ug/L 4000 92 60-14089 3 304000ND36803570 Vinyl chloride ug/L 4000 94 60-14091 3 304000ND37603640 1,2-Dichloroethane-d4 (S)%92 70-13094 4-Bromofluorobenzene (S)%97 70-13098 Toluene-d8 (S)%100 70-13098 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 17 #=QL# QUALIFIERS Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES Pace Analytical Services - CharlottePASI-C ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 RPD value was outside control limits.R1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 17 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92458266 NCDEQ Former Hinds Store Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92458266001 516396MW-2 SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 12/27/2019 05:38 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 17 Page 15 of 17 Page 16 of 17 Page 17 of 17