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HomeMy WebLinkAboutFA-29438_48585_CA_LTRRPT_20230111100 East Ruffin Street ꞏMebane, North Carolina 27302 Telephone (919) 563-9091 ꞏFacsimile (919) 563-9095 www.terraquestpc.com January 11, 2023 Ken Currie NCDEQ DWM-UST Fayetteville Regional Office 225 Green St. Suite 714 Fayetteville, NC 28301 Re: Groundwater Resampling Assessment Letter Sky Mart 1545 NC HWY 24/27 Cameron, NC 28326 Moore County PIN # 09054023 Dear Mr. Currie: Terraquest Environmental Consultants, P.C. (Terraquest) has completed the groundwater sampling activities at the Sky Mart property located at 1545 NC Hwy 24/27 in Cameron, Moore County, NC (herein referred to as the subject property). The purpose of this letter is to summarize the findings of the groundwater sampling event performed at the subject property by Terraquest as requested by the North Carolina Department of Environmental Quality – Division of Waste Management Underground Storage Tank (NCDEQ DWM-UST) Section Notice of Regulatory Requirements (NORR) letter dated December 22, 2022. The location of the subject property is depicted in the attached Figure 1. The site layout map is depicted in the attached Figure 2. Groundwater Sampling As per the direction of the NORR, Terraquest personnel collected a groundwater sample from monitoring well MW1 on December 29, 2022. Prior to sampling, Terraquest purged the monitoring well of at least three well volumes using a new disposable bailer. The purge bailer was also used to retrieve a representative groundwater sample by field personnel wearing disposable nitrile gloves. Groundwater was transferred directly from the bailer into laboratory-prepared sampling containers. The samples were labeled with the project name, project number, sample identification, required analysis, and date and time of collection. The samples were placed on ice, sent to a North Carolina-certified laboratory, and analyzed before the expiration of an analytical method’s prescribed holding time. Chain-of-custody documentation was maintained for the collected samples. The groundwater sample was analyzed by EPA Method 6200B plus Ethanol and oxygenates for volatile organic compounds (VOCs) and EPA Method 625 BNA for semi-volatile organic compounds (SVOCs). Groundwater Sample Analytical Results Analytical results of the MW1 groundwater samples revealed detected concentrations greater than the laboratory sample method detection limit. A concentration of t-Amyl Alcohol (TAA) was detected above its Title 15A NCAC 2L .0202 Groundwater Quality Standard (2L Standard). The attached Table 1 summarizes the MW1 groundwater sample analytical results. The complete analytical report is also attached. The location of the MW1 groundwater sample is depicted in the attached Figure 2. Sky Mart 1545 NC HWY 24/27, Cameron, NC Page 2 January 11, 2023 Findings 1)The December 29, 2022 MW1 groundwater analytical results revealed a detected TAA concentration in excess of its 2L Standard. No other detected concentrations were above their 2L Standards. Recommendations Terraquest recommends: 1)With the minor and stable contaminant concentrations over three groundwater sampling events, the release incident meets the qualifications of closure. If you have any questions regarding this letter, please call me at (919) 563-9091 or (919) 906-0707. Sincerely, TERRAQUEST ENVIRONMENTAL CONSULTANTS, P.C. Jonathan R. Grub P.G.bs, Vice President Attachments Table 1: Summary of Groundwater Sampling Results Figure 1: Site Location Map Figure 2: Site Layout & Groundwater Sample Location Map Analytical Report ONSULTANTS, P.C.CENVIRONMENTAL Table 1Date: 1/11/23Facility ID No.00-0-00000368726200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B6200B625.1625.1625.1625.1625.1625.1625.1625.1625.1625.1625.1625.1625.1625.1625.1MADEPVPHMADEPVPH/EPHMADEPEPHMADEPVPH/EPH504.16010CWell IDDate CollectedBenzeneTolueneEthylbenzeneTotal XylenesMTBEDiisopropyl etherAcetoneEthanolt-Amyl Alcoholtert-Butyl alcoholN-PropylbenzeneIsopropylbenzene1,3,5-TrimethylbenzeneAnthraceneFluoranthenePhenanthrenePyreneButyl benzyl phthalateBenzo[a]pyreneBenzo[b]fluorantheneBenzo[g,h,i]peryleneBenzo[k]fluorantheneBenzoic acidDiethyl phthalateDibenz(a,h)anthraceneDimethyl phthalateDi-n-butyl phthalateIndeno[1,2,3-cd]pyreneC5-C8 AliphaticsC9-C18 AliphaticsC19-C36 AliphaticsC9-C22 AromaticsEDBLeadGW1 6/15/202221.3 0.984 J 6.23 3.09 J 0.514 J 2.01<10 <24 NA NA0.755 J 2 0.763 J 0.562 J 0.603 J 0.644 J 0.669 J 0.450 J 0.268 J<0.173 <0.2650.244 J 22.5 J 3.10 J<0.27629.4 1.87 J<0.253 NA NA NA NA NA NAMW1 11/22/20229.91 0.536 J 1.58 1.04 J 0.575 J 2.4 21.0 J65.0 J *+NA NA <0.690 <0.53 <0.560 <0.177 <0.177 <0.177 <0.207 <0.1870.85 JB0.738 JB1.92 B0.720 JB18.3 J 11.4 1.60 JB 0.637 J<1.381.16 JB 33 23.8< 14926.1< 0.01550.194MW1 12/29/20220.910 J<0.278 <0.137 <0.6040.294 0.959 J<11.3 <42101 18.6<0.0993<0.105 <0.104 <0.0804<0.102 <0.112 <0.107 <0.765 <0.0381<0.130 <0.121 <0.120 NA0.316 J<0.0644<0.260 <0.453 <0.279 NA NA NA NA NA NA1 600 600 500 20 70 6,000 4,000 40 NE 70 70 400 2,000 300 200 200 NE 0.005 0.05 200 0.5 30,0006,000 0.005NE NE 0.05 400 700 10,000 200* 0.02 155,000 ##### 84,500 85,500 20,000 70,000 6.E+06 4.E+06 40,000 NE 30,000 25,000 25,000 2,000 300 410 200 NE 0.81 0.75 200 0.5 2.E+06NE NENE NE NENE NE NE NE50 15,000Notes:1. All results in µg/L. 2. Bold denotes a detected concentration. NA - Not Analyzed for3. Shading denotes a 2L Standard exceedence4. Italics denotes a Gross Contaminantion Level (GCL) exceedence 5. < - denotes less than sample detection limit.6. NE - Not Established; J-Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value; B- Compound was found in the blank and sampleSUMMARY OF GROUNDWATER SAMPLING RESULTS Project Name: Sky Mart - 1545 NC 24-27 Hwy., Cameron, NC Analytical Method:2L StandardGCL ANALYTICAL REPORT January 10, 2023 Revised Report TerraQuest Environmental Consultants PC Sample Delivery Group:L1571801 Samples Received:12/31/2022 Project Number:08822 Description: Report To:Jonathan Grubbs 100 East Ruffin Street Mebane, NC 27302 Entire Report Reviewed By: January 10, 2023 [Preliminary Report] Heather J Wagner Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Analytical National is performed per guidance provided in laboratory standard operating procedures ENV-SOP-MTJL-0067 and ENV-SOP-MTJL-0068. Where sampling conducted by the customer, results relate to the accuracy of the information provided, and as the samples are received. Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 1 of 20 January 10, 2023 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 1 of 20 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 MW1 L1571801-01 5 Qc: Quality Control Summary 8 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 8 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 13 Gl: Glossary of Terms 18 Al: Accreditations & Locations 19 Sc: Sample Chain of Custody 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 2 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 2 of 20 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW1 L1571801-01 GW Wesley Sorrells 12/29/22 12:30 12/31/22 08:45 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1984364 1 01/06/23 13:58 01/06/23 13:58 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-2011 WG1984516 1 01/06/23 15:51 01/06/23 15:51 GLN Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 625.1 WG1981979 1 01/03/23 04:10 01/03/23 21:52 AGW Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 3 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 3 of 20 CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Heather J Wagner Project Manager Report Revision History Level II Report - Version 1: 01/06/23 16:23 Project Narrative Revised Report: Revied to include results for ethanol and oxygenates per client request. This report replaces the report issued 1/6/2023. Sample Delivery Group (SDG) Narrative An aliquot for analysis was taken from the original container received due to volume requirements of the laboratory’s procedure. Rinsing of the original sample container for inclusion in the sample extraction was not performed. Lab Sample ID Project Sample ID Method L1571801-01 MW1 625.1 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 4 of 20 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 4 of 20 SAMPLE RESULTS - 01 L1571801 MW1 Collected date/time: 12/29/22 12:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 01/06/2023 15:51 WG1984516 Acrolein U 2.54 50.0 1 01/06/2023 15:51 WG1984516 Acrylonitrile U 0.671 10.0 1 01/06/2023 13:58 WG1984364 Benzene 0.910 J 0.0941 1.00 1 01/06/2023 13:58 WG1984364 Bromobenzene U 0.118 1.00 1 01/06/2023 13:58 WG1984364 Bromodichloromethane U 0.136 1.00 1 01/06/2023 13:58 WG1984364 Bromoform U 0.129 1.00 1 01/06/2023 13:58 WG1984364 Bromomethane U 0.605 5.00 1 01/06/2023 15:51 WG1984516 n-Butylbenzene U 0.157 1.00 1 01/06/2023 13:58 WG1984364 sec-Butylbenzene U 0.125 1.00 1 01/06/2023 13:58 WG1984364 tert-Butylbenzene U 0.127 1.00 1 01/06/2023 13:58 WG1984364 Carbon tetrachloride U 0.128 1.00 1 01/06/2023 13:58 WG1984364 Chlorobenzene U 0.116 1.00 1 01/06/2023 13:58 WG1984364 Chlorodibromomethane U 0.140 1.00 1 01/06/2023 13:58 WG1984364 Chloroethane U 0.192 5.00 1 01/06/2023 13:58 WG1984364 Chloroform U 0.111 5.00 1 01/06/2023 13:58 WG1984364 Chloromethane U 0.960 2.50 1 01/06/2023 13:58 WG1984364 2-Chlorotoluene U 0.106 1.00 1 01/06/2023 13:58 WG1984364 4-Chlorotoluene U 0.114 1.00 1 01/06/2023 13:58 WG1984364 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 01/06/2023 13:58 WG1984364 1,2-Dibromoethane U 0.126 1.00 1 01/06/2023 13:58 WG1984364 Dibromomethane U 0.122 1.00 1 01/06/2023 13:58 WG1984364 1,2-Dichlorobenzene U 0.107 1.00 1 01/06/2023 13:58 WG1984364 1,3-Dichlorobenzene U 0.110 1.00 1 01/06/2023 13:58 WG1984364 1,4-Dichlorobenzene U 0.120 1.00 1 01/06/2023 13:58 WG1984364 Dichlorodifluoromethane U 0.374 5.00 1 01/06/2023 13:58 WG1984364 1,1-Dichloroethane U 0.100 1.00 1 01/06/2023 13:58 WG1984364 1,2-Dichloroethane U 0.0819 1.00 1 01/06/2023 13:58 WG1984364 1,1-Dichloroethene U 0.188 1.00 1 01/06/2023 13:58 WG1984364 cis-1,2-Dichloroethene U 0.126 1.00 1 01/06/2023 13:58 WG1984364 trans-1,2-Dichloroethene U 0.149 1.00 1 01/06/2023 13:58 WG1984364 1,2-Dichloropropane U 0.149 1.00 1 01/06/2023 13:58 WG1984364 1,1-Dichloropropene U 0.142 1.00 1 01/06/2023 13:58 WG1984364 1,3-Dichloropropane U 0.110 1.00 1 01/06/2023 13:58 WG1984364 2,2-Dichloropropane U 0.161 1.00 1 01/06/2023 13:58 WG1984364 Di-isopropyl ether 0.959 J 0.105 1.00 1 01/06/2023 13:58 WG1984364 Ethylbenzene U 0.137 1.00 1 01/06/2023 13:58 WG1984364 Hexachloro-1,3-butadiene U 0.337 1.00 1 01/06/2023 13:58 WG1984364 Isopropylbenzene U 0.105 1.00 1 01/06/2023 13:58 WG1984364 p-Isopropyltoluene U 0.120 1.00 1 01/06/2023 13:58 WG1984364 2-Butanone (MEK)U 1.19 10.0 1 01/06/2023 13:58 WG1984364 Methylene Chloride U 0.430 5.00 1 01/06/2023 13:58 WG1984364 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 01/06/2023 13:58 WG1984364 Methyl tert-butyl ether 0.294 J 0.101 1.00 1 01/06/2023 13:58 WG1984364 Naphthalene U 1.00 5.00 1 01/06/2023 13:58 WG1984364 n-Propylbenzene U 0.0993 1.00 1 01/06/2023 13:58 WG1984364 Styrene U 0.118 1.00 1 01/06/2023 13:58 WG1984364 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 01/06/2023 13:58 WG1984364 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 01/06/2023 13:58 WG1984364 Tetrachloroethene U 0.300 1.00 1 01/06/2023 13:58 WG1984364 Toluene U 0.278 1.00 1 01/06/2023 13:58 WG1984364 1,2,3-Trichlorobenzene U 0.230 1.00 1 01/06/2023 13:58 WG1984364 1,2,4-Trichlorobenzene U 0.481 1.00 1 01/06/2023 13:58 WG1984364 1,1,1-Trichloroethane U 0.149 1.00 1 01/06/2023 13:58 WG1984364 1,1,2-Trichloroethane U 0.158 1.00 1 01/06/2023 13:58 WG1984364 Trichloroethene U 0.190 1.00 1 01/06/2023 13:58 WG1984364 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 5 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 5 of 20 SAMPLE RESULTS - 01 L1571801 MW1 Collected date/time: 12/29/22 12:30 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 01/06/2023 13:58 WG1984364 1,2,3-Trichloropropane U 0.237 2.50 1 01/06/2023 13:58 WG1984364 1,2,4-Trimethylbenzene U 0.322 1.00 1 01/06/2023 13:58 WG1984364 1,3,5-Trimethylbenzene U 0.104 1.00 1 01/06/2023 13:58 WG1984364 Vinyl chloride U 0.234 1.00 1 01/06/2023 13:58 WG1984364 o-Xylene U 0.174 1.00 1 01/06/2023 13:58 WG1984364 m&p-Xylenes U 0.430 2.00 1 01/06/2023 13:58 WG1984364 Ethanol U 42.0 100 1 01/06/2023 13:58 WG1984364 Ethyl tert-butyl ether U 0.101 1.00 1 01/06/2023 13:58 WG1984364 t-Amyl Alcohol 101 4.90 50.0 1 01/06/2023 13:58 WG1984364 tert-Butyl alcohol 18.6 4.06 5.00 1 01/06/2023 13:58 WG1984364 tert-Amyl Methyl Ether U 0.195 1.00 1 01/06/2023 13:58 WG1984364 (S) Toluene-d8 107 80.0-120 01/06/2023 13:58 WG1984364 (S) Toluene-d8 98.1 80.0-120 01/06/2023 15:51 WG1984516 (S) 4-Bromofluorobenzene 104 77.0-126 01/06/2023 13:58 WG1984364 (S) 4-Bromofluorobenzene 91.2 77.0-126 01/06/2023 15:51 WG1984516 (S) 1,2-Dichloroethane-d4 90.8 70.0-130 01/06/2023 13:58 WG1984364 (S) 1,2-Dichloroethane-d4 89.2 70.0-130 01/06/2023 15:51 WG1984516 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acenaphthene U 0.0886 1.00 1 01/03/2023 21:52 WG1981979 Acenaphthylene U 0.0921 1.00 1 01/03/2023 21:52 WG1981979 Anthracene U 0.0804 1.00 1 01/03/2023 21:52 WG1981979 Benzidine U 3.74 10.0 1 01/03/2023 21:52 WG1981979 Benzo(a)anthracene U 0.199 1.00 1 01/03/2023 21:52 WG1981979 Benzo(b)fluoranthene U 0.130 1.00 1 01/03/2023 21:52 WG1981979 Benzo(k)fluoranthene U 0.120 1.00 1 01/03/2023 21:52 WG1981979 Benzo(g,h,i)perylene U 0.121 1.00 1 01/03/2023 21:52 WG1981979 Benzo(a)pyrene U 0.0381 1.00 1 01/03/2023 21:52 WG1981979 Bis(2-chlorethoxy)methane U 0.116 10.0 1 01/03/2023 21:52 WG1981979 Bis(2-chloroethyl)ether U 0.137 10.0 1 01/03/2023 21:52 WG1981979 2,2-Oxybis(1-Chloropropane)U 0.210 10.0 1 01/03/2023 21:52 WG1981979 4-Bromophenyl-phenylether U 0.0877 10.0 1 01/03/2023 21:52 WG1981979 2-Chloronaphthalene U 0.0648 1.00 1 01/03/2023 21:52 WG1981979 4-Chlorophenyl-phenylether U 0.0926 10.0 1 01/03/2023 21:52 WG1981979 Chrysene U 0.130 1.00 1 01/03/2023 21:52 WG1981979 Dibenz(a,h)anthracene U 0.0644 1.00 1 01/03/2023 21:52 WG1981979 3,3-Dichlorobenzidine U 0.212 10.0 1 01/03/2023 21:52 WG1981979 2,4-Dinitrotoluene U 0.0983 10.0 1 01/03/2023 21:52 WG1981979 2,6-Dinitrotoluene U 0.250 10.0 1 01/03/2023 21:52 WG1981979 Fluoranthene U 0.102 1.00 1 01/03/2023 21:52 WG1981979 Fluorene U 0.0844 1.00 1 01/03/2023 21:52 WG1981979 Hexachlorobenzene U 0.0755 1.00 1 01/03/2023 21:52 WG1981979 Hexachloro-1,3-butadiene U 0.0968 10.0 1 01/03/2023 21:52 WG1981979 Hexachlorocyclopentadiene U 0.0598 10.0 1 01/03/2023 21:52 WG1981979 Hexachloroethane U 0.127 10.0 1 01/03/2023 21:52 WG1981979 Indeno(1,2,3-cd)pyrene U 0.279 1.00 1 01/03/2023 21:52 WG1981979 Isophorone U 0.143 10.0 1 01/03/2023 21:52 WG1981979 Naphthalene U 0.159 1.00 1 01/03/2023 21:52 WG1981979 Nitrobenzene U 0.297 10.0 1 01/03/2023 21:52 WG1981979 n-Nitrosodimethylamine U 0.998 10.0 1 01/03/2023 21:52 WG1981979 n-Nitrosodiphenylamine U 2.37 10.0 1 01/03/2023 21:52 WG1981979 n-Nitrosodi-n-propylamine U 0.261 10.0 1 01/03/2023 21:52 WG1981979 Phenanthrene U 0.112 1.00 1 01/03/2023 21:52 WG1981979 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 6 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 6 of 20 SAMPLE RESULTS - 01 L1571801 MW1 Collected date/time: 12/29/22 12:30 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Benzylbutyl phthalate U 0.765 3.00 1 01/03/2023 21:52 WG1981979 Bis(2-ethylhexyl)phthalate U 0.895 3.00 1 01/03/2023 21:52 WG1981979 Di-n-butyl phthalate U 0.453 3.00 1 01/03/2023 21:52 WG1981979 Diethyl phthalate 0.316 J 0.287 3.00 1 01/03/2023 21:52 WG1981979 Dimethyl phthalate U 0.260 3.00 1 01/03/2023 21:52 WG1981979 Di-n-octyl phthalate U 0.932 3.00 1 01/03/2023 21:52 WG1981979 Pyrene U 0.107 1.00 1 01/03/2023 21:52 WG1981979 1,2,4-Trichlorobenzene U 0.0698 10.0 1 01/03/2023 21:52 WG1981979 4-Chloro-3-methylphenol U 0.131 10.0 1 01/03/2023 21:52 WG1981979 2-Chlorophenol U 0.133 10.0 1 01/03/2023 21:52 WG1981979 2,4-Dichlorophenol U 0.102 10.0 1 01/03/2023 21:52 WG1981979 2,4-Dimethylphenol U 0.0636 10.0 1 01/03/2023 21:52 WG1981979 4,6-Dinitro-2-methylphenol U 1.12 10.0 1 01/03/2023 21:52 WG1981979 2,4-Dinitrophenol U 5.93 10.0 1 01/03/2023 21:52 WG1981979 2-Nitrophenol U 0.117 10.0 1 01/03/2023 21:52 WG1981979 4-Nitrophenol U 0.143 10.0 1 01/03/2023 21:52 WG1981979 Pentachlorophenol U 0.313 10.0 1 01/03/2023 21:52 WG1981979 Phenol U 4.33 10.0 1 01/03/2023 21:52 WG1981979 2,4,6-Trichlorophenol U 0.100 10.0 1 01/03/2023 21:52 WG1981979 (S) Nitrobenzene-d5 56.6 15.0-314 01/03/2023 21:52 WG1981979 (S) 2-Fluorobiphenyl 75.5 22.0-127 01/03/2023 21:52 WG1981979 (S) p-Terphenyl-d14 82.6 29.0-141 01/03/2023 21:52 WG1981979 (S) Phenol-d5 19.6 8.00-424 01/03/2023 21:52 WG1981979 (S) 2-Fluorophenol 29.3 10.0-120 01/03/2023 21:52 WG1981979 (S) 2,4,6-Tribromophenol 94.5 10.0-153 01/03/2023 21:52 WG1981979 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 7 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 7 of 20 QUALITY CONTROL SUMMARYWG1984364 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1571801-01 Method Blank (MB) (MB) R3878706-2 01/06/23 08:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acrylonitrile U 0.671 10.0 Benzene U 0.0941 1.00 Bromobenzene U 0.118 1.00 Bromodichloromethane U 0.136 1.00 Bromoform U 0.129 1.00 n-Butylbenzene U 0.157 1.00 sec-Butylbenzene U 0.125 1.00 tert-Butylbenzene U 0.127 1.00 Carbon tetrachloride U 0.128 1.00 Chlorobenzene U 0.116 1.00 Chlorodibromomethane U 0.140 1.00 Chloroethane U 0.192 5.00 Chloroform U 0.111 5.00 Chloromethane U 0.960 2.50 2-Chlorotoluene U 0.106 1.00 4-Chlorotoluene U 0.114 1.00 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1,2-Dibromoethane U 0.126 1.00 Dibromomethane U 0.122 1.00 1,2-Dichlorobenzene U 0.107 1.00 1,3-Dichlorobenzene U 0.110 1.00 1,4-Dichlorobenzene U 0.120 1.00 Dichlorodifluoromethane U 0.374 5.00 1,1-Dichloroethane U 0.100 1.00 1,2-Dichloroethane U 0.0819 1.00 1,1-Dichloroethene U 0.188 1.00 cis-1,2-Dichloroethene U 0.126 1.00 trans-1,2-Dichloroethene U 0.149 1.00 1,2-Dichloropropane U 0.149 1.00 1,1-Dichloropropene U 0.142 1.00 1,3-Dichloropropane U 0.110 1.00 2,2-Dichloropropane U 0.161 1.00 Di-isopropyl ether U 0.105 1.00 Ethylbenzene 0.191 J 0.137 1.00 Hexachloro-1,3-butadiene U 0.337 1.00 Isopropylbenzene U 0.105 1.00 p-Isopropyltoluene U 0.120 1.00 2-Butanone (MEK)U 1.19 10.0 Methylene Chloride U 0.430 5.00 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 8 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 8 of 20 QUALITY CONTROL SUMMARYWG1984364 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1571801-01 Method Blank (MB) (MB) R3878706-2 01/06/23 08:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 n-Propylbenzene 0.160 J 0.0993 1.00 Styrene U 0.118 1.00 1,1,1,2-Tetrachloroethane U 0.147 1.00 1,1,2,2-Tetrachloroethane U 0.133 1.00 Tetrachloroethene U 0.300 1.00 Toluene U 0.278 1.00 1,2,3-Trichlorobenzene U 0.230 1.00 1,2,4-Trichlorobenzene U 0.481 1.00 1,1,1-Trichloroethane U 0.149 1.00 1,1,2-Trichloroethane U 0.158 1.00 Trichloroethene U 0.190 1.00 Trichlorofluoromethane U 0.160 5.00 1,2,3-Trichloropropane U 0.237 2.50 1,2,4-Trimethylbenzene U 0.322 1.00 1,3,5-Trimethylbenzene U 0.104 1.00 Vinyl chloride U 0.234 1.00 o-Xylene U 0.174 1.00 m&p-Xylenes U 0.430 2.00 Ethanol U 42.0 100 Ethyl tert-butyl ether U 0.101 1.00 t-Amyl Alcohol U 4.90 50.0 tert-Butyl alcohol U 4.06 5.00 tert-Amyl Methyl Ether U 0.195 1.00 (S) Toluene-d8 108 80.0-120 (S) 4-Bromofluorobenzene 105 77.0-126 (S) 1,2-Dichloroethane-d4 89.1 70.0-130 Laboratory Control Sample (LCS) (LCS) R3878706-1 01/06/23 07:37 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Acrylonitrile 25.0 20.1 80.4 55.0-149 Benzene 5.00 4.44 88.8 70.0-123 Bromobenzene 5.00 4.08 81.6 73.0-121 Bromodichloromethane 5.00 4.31 86.2 75.0-120 Bromoform 5.00 3.69 73.8 68.0-132 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 9 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 9 of 20 QUALITY CONTROL SUMMARYWG1984364 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1571801-01 Laboratory Control Sample (LCS) (LCS) R3878706-1 01/06/23 07:37 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% n-Butylbenzene 5.00 4.42 88.4 73.0-125 sec-Butylbenzene 5.00 4.36 87.2 75.0-125 tert-Butylbenzene 5.00 4.50 90.0 76.0-124 Carbon tetrachloride 5.00 4.56 91.2 68.0-126 Chlorobenzene 5.00 5.00 100 80.0-121 Chlorodibromomethane 5.00 4.66 93.2 77.0-125 Chloroethane 5.00 5.01 100 47.0-150 Chloroform 5.00 4.32 86.4 73.0-120 Chloromethane 5.00 4.20 84.0 41.0-142 2-Chlorotoluene 5.00 4.19 83.8 76.0-123 4-Chlorotoluene 5.00 4.13 82.6 75.0-122 1,2-Dibromo-3-Chloropropane 5.00 3.84 76.8 58.0-134 1,2-Dibromoethane 5.00 5.04 101 80.0-122 Dibromomethane 5.00 4.87 97.4 80.0-120 1,2-Dichlorobenzene 5.00 4.84 96.8 79.0-121 1,3-Dichlorobenzene 5.00 4.63 92.6 79.0-120 1,4-Dichlorobenzene 5.00 4.47 89.4 79.0-120 Dichlorodifluoromethane 5.00 4.48 89.6 51.0-149 1,1-Dichloroethane 5.00 4.16 83.2 70.0-126 1,2-Dichloroethane 5.00 4.28 85.6 70.0-128 1,1-Dichloroethene 5.00 4.63 92.6 71.0-124 cis-1,2-Dichloroethene 5.00 4.91 98.2 73.0-120 trans-1,2-Dichloroethene 5.00 4.67 93.4 73.0-120 1,2-Dichloropropane 5.00 4.27 85.4 77.0-125 1,1-Dichloropropene 5.00 4.59 91.8 74.0-126 1,3-Dichloropropane 5.00 4.81 96.2 80.0-120 2,2-Dichloropropane 5.00 3.82 76.4 58.0-130 Di-isopropyl ether 5.00 4.03 80.6 58.0-138 Ethylbenzene 5.00 5.10 102 79.0-123 Hexachloro-1,3-butadiene 5.00 4.78 95.6 54.0-138 Isopropylbenzene 5.00 4.72 94.4 76.0-127 p-Isopropyltoluene 5.00 4.59 91.8 76.0-125 2-Butanone (MEK)25.0 19.9 79.6 44.0-160 Methylene Chloride 5.00 4.31 86.2 67.0-120 4-Methyl-2-pentanone (MIBK)25.0 21.7 86.8 68.0-142 Methyl tert-butyl ether 5.00 4.86 97.2 68.0-125 Naphthalene 5.00 5.06 101 54.0-135 n-Propylbenzene 5.00 4.36 87.2 77.0-124 Styrene 5.00 4.92 98.4 73.0-130 1,1,1,2-Tetrachloroethane 5.00 5.04 101 75.0-125 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 10 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 10 of 20 QUALITY CONTROL SUMMARYWG1984364 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1571801-01 Laboratory Control Sample (LCS) (LCS) R3878706-1 01/06/23 07:37 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% 1,1,2,2-Tetrachloroethane 5.00 4.09 81.8 65.0-130 Tetrachloroethene 5.00 5.13 103 72.0-132 Toluene 5.00 4.66 93.2 79.0-120 1,2,3-Trichlorobenzene 5.00 5.33 107 50.0-138 1,2,4-Trichlorobenzene 5.00 5.29 106 57.0-137 1,1,1-Trichloroethane 5.00 4.61 92.2 73.0-124 1,1,2-Trichloroethane 5.00 4.86 97.2 80.0-120 Trichloroethene 5.00 5.01 100 78.0-124 Trichlorofluoromethane 5.00 4.03 80.6 59.0-147 1,2,3-Trichloropropane 5.00 4.57 91.4 73.0-130 1,2,4-Trimethylbenzene 5.00 4.46 89.2 76.0-121 1,3,5-Trimethylbenzene 5.00 4.36 87.2 76.0-122 Vinyl chloride 5.00 4.58 91.6 67.0-131 o-Xylene 5.00 4.87 97.4 80.0-122 m&p-Xylenes 10.0 9.54 95.4 80.0-122 ethanol 250 253 101 10.0-160 Ethyl tert-butyl ether 5.00 4.75 95.0 63.0-138 t-Amyl Alcohol 25.0 26.4 106 30.0-160 tert-Butyl alcohol 25.0 26.5 106 27.0-160 tert-Amyl Methyl Ether 5.00 4.97 99.4 66.0-125 (S) Toluene-d8 106 80.0-120 (S) 4-Bromofluorobenzene 106 77.0-126 (S) 1,2-Dichloroethane-d4 90.8 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 11 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 11 of 20 QUALITY CONTROL SUMMARYWG1984516 Volatile Organic Compounds (GC/MS) by Method 6200B-2011 L1571801-01 Method Blank (MB) (MB) R3878791-3 01/06/23 11:08 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acetone U 11.3 50.0 Acrolein U 2.54 50.0 Bromomethane U 0.605 5.00 (S) Toluene-d8 99.0 80.0-120 (S) 4-Bromofluorobenzene 89.3 77.0-126 (S) 1,2-Dichloroethane-d4 94.9 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3878791-1 01/06/23 10:03 • (LCSD) R3878791-2 01/06/23 10:25 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Acetone 25.0 22.2 23.7 88.8 94.8 19.0-160 6.54 27 Acrolein 25.0 23.1 24.7 92.4 98.8 10.0-160 6.69 26 Bromomethane 5.00 4.30 4.86 86.0 97.2 10.0-160 12.2 25 (S) Toluene-d8 96.7 92.5 80.0-120 (S) 4-Bromofluorobenzene 92.0 90.3 77.0-126 (S) 1,2-Dichloroethane-d4 92.4 88.5 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 12 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 12 of 20 QUALITY CONTROL SUMMARYWG1981979 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1571801-01 Method Blank (MB) (MB) R3877700-2 01/03/23 11:16 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acenaphthene U 0.0886 1.00 Acenaphthylene U 0.0921 1.00 Anthracene U 0.0804 1.00 Benzidine U 3.74 10.0 Benzo(a)anthracene U 0.199 1.00 Benzo(b)fluoranthene U 0.130 1.00 Benzo(k)fluoranthene U 0.120 1.00 Benzo(g,h,i)perylene U 0.121 1.00 Benzo(a)pyrene U 0.0381 1.00 Bis(2-chlorethoxy)methane U 0.116 10.0 Bis(2-chloroethyl)ether U 0.137 10.0 2,2-oxybis(1-chloropropane)U 0.210 10.0 4-Bromophenyl-phenylether U 0.0877 10.0 2-Chloronaphthalene U 0.0648 1.00 4-Chlorophenyl-phenylether U 0.0926 10.0 Chrysene U 0.130 1.00 Dibenz(a,h)anthracene U 0.0644 1.00 3,3-Dichlorobenzidine U 0.212 10.0 2,4-Dinitrotoluene U 0.0983 10.0 2,6-Dinitrotoluene U 0.250 10.0 Fluoranthene U 0.102 1.00 Fluorene U 0.0844 1.00 Hexachlorobenzene U 0.0755 1.00 Hexachloro-1,3-butadiene U 0.0968 10.0 Hexachlorocyclopentadiene U 0.0598 10.0 Hexachloroethane U 0.127 10.0 Indeno(1,2,3-cd)pyrene U 0.279 1.00 Isophorone U 0.143 10.0 Naphthalene U 0.159 1.00 Nitrobenzene U 0.297 10.0 n-Nitrosodimethylamine U 0.998 10.0 n-Nitrosodiphenylamine U 2.37 10.0 n-Nitrosodi-n-propylamine U 0.261 10.0 Phenanthrene U 0.112 1.00 Benzylbutyl phthalate U 0.765 3.00 Bis(2-ethylhexyl)phthalate U 0.895 3.00 Di-n-butyl phthalate U 0.453 3.00 Diethyl phthalate U 0.287 3.00 Dimethyl phthalate U 0.260 3.00 Di-n-octyl phthalate U 0.932 3.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 13 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 13 of 20 QUALITY CONTROL SUMMARYWG1981979 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1571801-01 Method Blank (MB) (MB) R3877700-2 01/03/23 11:16 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Pyrene U 0.107 1.00 1,2,4-Trichlorobenzene U 0.0698 10.0 4-Chloro-3-methylphenol U 0.131 10.0 2-Chlorophenol U 0.133 10.0 2,4-Dichlorophenol U 0.102 10.0 2,4-Dimethylphenol 0.150 J 0.0636 10.0 4,6-Dinitro-2-methylphenol U 1.12 10.0 2,4-Dinitrophenol U 5.93 10.0 2-Nitrophenol U 0.117 10.0 4-Nitrophenol U 0.143 10.0 Pentachlorophenol U 0.313 10.0 Phenol U 4.33 10.0 2,4,6-Trichlorophenol U 0.100 10.0 (S) Nitrobenzene-d5 74.1 15.0-314 (S) 2-Fluorobiphenyl 67.0 22.0-127 (S) p-Terphenyl-d14 76.6 29.0-141 (S) Phenol-d5 21.0 8.00-424 (S) 2-Fluorophenol 35.1 10.0-120 (S) 2,4,6-Tribromophenol 63.5 10.0-153 Laboratory Control Sample (LCS) (LCS) R3877700-1 01/03/23 10:55 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Acenaphthene 50.0 41.2 82.4 47.0-145 Acenaphthylene 50.0 43.8 87.6 33.0-145 Anthracene 50.0 39.8 79.6 27.0-133 Benzidine 100 26.5 26.5 1.00-120 Benzo(a)anthracene 50.0 47.2 94.4 33.0-143 Benzo(b)fluoranthene 50.0 39.8 79.6 24.0-159 Benzo(k)fluoranthene 50.0 39.5 79.0 11.0-162 Benzo(g,h,i)perylene 50.0 37.8 75.6 1.00-219 Benzo(a)pyrene 50.0 43.2 86.4 17.0-163 Bis(2-chlorethoxy)methane 50.0 34.8 69.6 1.00-219 Bis(2-chloroethyl)ether 50.0 39.4 78.8 33.0-185 2,2-oxybis(1-chloropropane)50.0 37.5 75.0 36.0-166 4-Bromophenyl-phenylether 50.0 46.4 92.8 53.0-127 2-Chloronaphthalene 50.0 39.1 78.2 60.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 14 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 14 of 20 QUALITY CONTROL SUMMARYWG1981979 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1571801-01 Laboratory Control Sample (LCS) (LCS) R3877700-1 01/03/23 10:55 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% 4-Chlorophenyl-phenylether 50.0 42.5 85.0 25.0-158 Chrysene 50.0 41.4 82.8 17.0-168 Dibenz(a,h)anthracene 50.0 39.9 79.8 1.00-227 3,3-Dichlorobenzidine 100 83.5 83.5 1.00-262 2,4-Dinitrotoluene 50.0 43.4 86.8 39.0-139 2,6-Dinitrotoluene 50.0 42.2 84.4 50.0-158 Fluoranthene 50.0 45.4 90.8 26.0-137 Fluorene 50.0 44.6 89.2 59.0-121 Hexachlorobenzene 50.0 37.6 75.2 1.00-152 Hexachloro-1,3-butadiene 50.0 28.1 56.2 24.0-120 Hexachlorocyclopentadiene 50.0 25.6 51.2 10.0-120 Hexachloroethane 50.0 34.8 69.6 40.0-120 Indeno(1,2,3-cd)pyrene 50.0 38.0 76.0 1.00-171 Isophorone 50.0 33.8 67.6 21.0-196 Naphthalene 50.0 32.5 65.0 21.0-133 Nitrobenzene 50.0 34.3 68.6 35.0-180 n-Nitrosodimethylamine 50.0 22.2 44.4 10.0-120 n-Nitrosodiphenylamine 50.0 34.0 68.0 44.0-120 n-Nitrosodi-n-propylamine 50.0 45.2 90.4 1.00-230 Phenanthrene 50.0 41.7 83.4 54.0-120 Benzylbutyl phthalate 50.0 42.3 84.6 1.00-152 Bis(2-ethylhexyl)phthalate 50.0 39.6 79.2 8.00-158 Di-n-butyl phthalate 50.0 47.9 95.8 1.00-120 Diethyl phthalate 50.0 51.4 103 1.00-120 Dimethyl phthalate 50.0 42.2 84.4 1.00-120 Di-n-octyl phthalate 50.0 42.5 85.0 4.00-146 Pyrene 50.0 41.2 82.4 52.0-120 1,2,4-Trichlorobenzene 50.0 29.1 58.2 44.0-142 4-Chloro-3-methylphenol 50.0 31.0 62.0 22.0-147 2-Chlorophenol 50.0 31.0 62.0 23.0-134 2,4-Dichlorophenol 50.0 30.4 60.8 39.0-135 2,4-Dimethylphenol 50.0 28.3 56.6 32.0-120 4,6-Dinitro-2-methylphenol 50.0 53.6 107 1.00-181 2,4-Dinitrophenol 50.0 53.5 107 1.00-191 2-Nitrophenol 50.0 33.9 67.8 29.0-182 4-Nitrophenol 50.0 14.2 28.4 1.00-132 Pentachlorophenol 50.0 39.2 78.4 14.0-176 Phenol 50.0 11.8 23.6 5.00-120 2,4,6-Trichlorophenol 50.0 39.3 78.6 37.0-144 (S) Nitrobenzene-d5 64.9 15.0-314 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 15 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 15 of 20 QUALITY CONTROL SUMMARYWG1981979 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1571801-01 Laboratory Control Sample (LCS) (LCS) R3877700-1 01/03/23 10:55 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% (S) 2-Fluorobiphenyl 69.9 22.0-127 (S) p-Terphenyl-d14 74.6 29.0-141 (S) Phenol-d5 22.5 8.00-424 (S) 2-Fluorophenol 33.2 10.0-120 (S) 2,4,6-Tribromophenol 72.0 10.0-153 L1571821-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1571821-01 01/03/23 22:57 • (MS) R3877700-3 01/03/23 23:19 • (MSD) R3877700-4 01/03/23 23:40 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l %%%%% Acenaphthene 50.0 U 0.621 0.844 1.24 1.69 1 47.0-145 J6 J6 30.4 48 Acenaphthylene 50.0 U 0.349 0.371 0.698 0.742 1 33.0-145 J6 J6 6.11 74 Anthracene 50.0 U 1.55 2.53 3.10 5.06 1 27.0-133 J6 J6 48.0 66 Benzidine 100 U 7.21 7.19 7.21 7.19 1 1.00-120 0.278 40 Benzo(a)anthracene 50.0 U 20.8 20.4 41.6 40.8 1 33.0-143 1.94 53 Benzo(b)fluoranthene 50.0 U 40.9 38.0 81.8 76.0 1 24.0-159 7.35 71 Benzo(k)fluoranthene 50.0 U 36.5 35.4 73.0 70.8 1 11.0-162 3.06 63 Benzo(g,h,i)perylene 50.0 U 6.60 6.84 13.2 13.7 1 1.00-219 3.57 97 Benzo(a)pyrene 50.0 U 0.957 0.875 1.91 1.75 1 17.0-163 J6 J6 8.95 72 Bis(2-chlorethoxy)methane 50.0 U 36.8 36.9 73.6 73.8 1 33.0-184 0.271 54 Bis(2-chloroethyl)ether 50.0 U 36.9 37.5 73.8 75.0 1 12.0-158 1.61 108 2,2-oxybis(1-chloropropane)50.0 U 32.3 33.1 64.6 66.2 1 36.0-166 2.45 76 4-Bromophenyl-phenylether 50.0 U 43.7 43.3 87.4 86.6 1 53.0-127 0.920 43 2-Chloronaphthalene 50.0 U 36.7 35.0 73.4 70.0 1 60.0-120 4.74 24 4-Chlorophenyl-phenylether 50.0 U 39.7 38.6 79.4 77.2 1 25.0-158 2.81 61 Chrysene 50.0 U 39.4 37.2 78.8 74.4 1 17.0-168 5.74 87 Dibenz(a,h)anthracene 50.0 U 32.9 32.3 65.8 64.6 1 1.00-227 1.84 126 3,3-Dichlorobenzidine 100 U 0.521 0.607 0.521 0.607 1 1.00-262 J6 J6 15.2 108 2,4-Dinitrotoluene 50.0 U 39.9 39.1 79.8 78.2 1 39.0-139 2.03 42 2,6-Dinitrotoluene 50.0 U 38.1 36.6 76.2 73.2 1 50.0-158 4.02 48 Fluoranthene 50.0 U 41.7 40.0 83.4 80.0 1 26.0-137 4.16 66 Fluorene 50.0 U 41.0 39.9 82.0 79.8 1 59.0-121 2.72 38 Hexachlorobenzene 50.0 U 34.9 34.5 69.8 69.0 1 1.00-152 1.15 55 Hexachloro-1,3-butadiene 50.0 U 30.5 31.7 61.0 63.4 1 24.0-120 3.86 62 Hexachlorocyclopentadiene 50.0 U 32.4 33.0 64.8 66.0 1 10.0-146 1.83 34 Hexachloroethane 50.0 U 32.4 34.3 64.8 68.6 1 40.0-120 5.70 52 Indeno(1,2,3-cd)pyrene 50.0 U 20.9 21.0 41.8 42.0 1 1.00-171 0.477 99 Isophorone 50.0 U 36.4 36.0 72.8 72.0 1 21.0-196 1.10 93 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 16 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 16 of 20 QUALITY CONTROL SUMMARYWG1981979 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1571801-01 L1571821-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1571821-01 01/03/23 22:57 • (MS) R3877700-3 01/03/23 23:19 • (MSD) R3877700-4 01/03/23 23:40 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l %%%%% Naphthalene 50.0 U 32.2 32.6 64.4 65.2 1 21.0-133 1.23 65 Nitrobenzene 50.0 U 37.4 37.8 74.8 75.6 1 35.0-180 1.06 62 n-Nitrosodimethylamine 50.0 U 19.8 22.0 39.6 44.0 1 10.0-120 10.5 40 n-Nitrosodiphenylamine 50.0 U 4.76 4.83 9.52 9.66 1 16.0-160 J6 J6 1.46 28 n-Nitrosodi-n-propylamine 50.0 U 39.6 40.4 79.2 80.8 1 1.00-230 2.00 87 Phenanthrene 50.0 U 31.6 31.3 63.2 62.6 1 54.0-120 0.954 39 Benzylbutyl phthalate 50.0 U 41.7 41.0 83.4 82.0 1 1.00-152 1.69 60 Bis(2-ethylhexyl)phthalate 50.0 U 38.0 37.1 73.7 71.9 1 8.00-158 2.40 82 Di-n-butyl phthalate 50.0 U 43.8 43.2 87.6 86.4 1 1.00-120 1.38 47 Diethyl phthalate 50.0 U 47.8 46.6 95.6 93.2 1 1.00-120 2.54 100 Dimethyl phthalate 50.0 U 38.7 37.1 77.4 74.2 1 1.00-120 4.22 183 Di-n-octyl phthalate 50.0 U 41.1 39.9 82.2 79.8 1 4.00-146 2.96 69 Pyrene 50.0 U 12.1 11.0 24.2 22.0 1 52.0-120 J6 J6 9.52 49 1,2,4-Trichlorobenzene 50.0 U 32.2 33.2 64.4 66.4 1 44.0-142 3.06 50 4-Chloro-3-methylphenol 50.0 U 21.1 11.2 42.2 22.4 1 22.0-147 61.3 73 2-Chlorophenol 50.0 U 40.0 41.5 80.0 83.0 1 23.0-134 3.68 61 2,4-Dichlorophenol 50.0 U 32.3 32.8 64.6 65.6 1 39.0-135 1.54 50 2,4-Dimethylphenol 50.0 U 3.18 3.24 6.36 6.48 1 32.0-120 J6 J6 1.87 58 4,6-Dinitro-2-methylphenol 50.0 U 47.6 48.2 95.2 96.4 1 1.00-181 1.25 203 2,4-Dinitrophenol 50.0 U 49.7 49.8 99.4 99.6 1 1.00-191 0.201 132 2-Nitrophenol 50.0 U 35.1 34.6 70.2 69.2 1 29.0-182 1.43 55 4-Nitrophenol 50.0 U 40.6 38.6 81.2 77.2 1 1.00-132 5.05 131 Pentachlorophenol 50.0 U 45.0 45.9 90.0 91.8 1 14.0-176 1.98 86 Phenol 50.0 U U U 0.000 0.000 1 5.00-120 J6 J6 0.000 64 2,4,6-Trichlorophenol 50.0 U 32.3 31.4 64.6 62.8 1 37.0-144 2.83 58 (S) Nitrobenzene-d5 63.5 62.9 15.0-314 (S) 2-Fluorobiphenyl 62.1 59.9 22.0-127 (S) p-Terphenyl-d14 71.6 69.6 29.0-141 (S) Phenol-d5 2.03 1.79 8.00-424 J2 J2 (S) 2-Fluorophenol 30.5 31.4 10.0-120 (S) 2,4,6-Tribromophenol 47.9 49.2 10.0-153 Sample Narrative: OS: Surrogate failure due to matrix interference 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 17 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 17 of 20 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J The identification of the analyte is acceptable; the reported value is an estimate. J2 Surrogate recovery limits have been exceeded; values are outside lower control limits. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 18 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 18 of 20 Pace Analytical National 12065 Lebanon Rd Mount Juliet, TN 37122 Alabama 40660 Nebraska NE-OS-15-05 Alaska 17-026 Nevada TN000032021-1 Arizona AZ0612 New Hampshire 2975 Arkansas 88-0469 New Jersey–NELAP TN002 California 2932 New Mexico ¹TN00003 Colorado TN00003 New York 11742 Connecticut PH-0197 North Carolina Env375 Florida E87487 North Carolina ¹DW21704 Georgia NELAP North Carolina ³41 Georgia ¹923 North Dakota R-140 Idaho TN00003 Ohio–VAP CL0069 Illinois 200008 Oklahoma 9915 Indiana C-TN-01 Oregon TN200002 Iowa 364 Pennsylvania 68-02979 Kansas E-10277 Rhode Island LAO00356 Kentucky ¹ ⁶KY90010 South Carolina 84004002 Kentucky ²16 South Dakota n/a Louisiana AI30792 Tennessee ¹ ⁴2006 Louisiana LA018 Texas T104704245-20-18 Maine TN00003 Texas ⁵LAB0152 Maryland 324 Utah TN000032021-11 Massachusetts M-TN003 Vermont VT2006 Michigan 9958 Virginia 110033 Minnesota 047-999-395 Washington C847 Mississippi TN00003 West Virginia 233 Missouri 340 Wisconsin 998093910 Montana CERT0086 Wyoming A2LA A2LA – ISO 17025 1461.01 AIHA-LAP,LLC EMLAP 100789 A2LA – ISO 17025 ⁵1461.02 DOD 1461.01 Canada 1461.01 USDA P330-15-00234 EPA–Crypto TN00003 ACCREDITATIONS & LOCATIONS ¹ Drinking Water ² Underground Storage Tanks ³ Aquatic Toxicity ⁴ Chemical/Microbiological ⁵ Mold ⁶ Wastewater n/a Accreditation not applicable * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace Analytical. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:31 19 of 20 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: TerraQuest Environmental Consultants PC 08822 L1571801 01/10/23 12:35 19 of 20