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HomeMy WebLinkAboutMO-30102_49169_CA_SAR_20230825ANALYTICAL REPORT August 16, 2023 EHC, Inc. Sample Delivery Group:L1642492 Samples Received:08/03/2023 Project Number: Description:Statesville Report To:Mr. Thomas Ammons PO Box 902 Red Springs, NC 28377 Entire Report Reviewed By: August 16, 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: EHC, Inc.L1642492 08/16/23 07:37 1 of 33 August 16, 2023 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 1 of 33 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 SS-1 L1642492-01 5 SS-1 L1642492-02 8 Qc: Quality Control Summary 10 Total Solids by Method 2540 G-2011 10 Mercury by Method 7470A 11 Metals (ICP) by Method 6010D 12 Volatile Organic Compounds (GC/MS) by Method 8260D 13 Chlorinated Acid Herbicides (GC) by Method 8151A 21 Pesticides (GC) by Method 8081B 22 Semi Volatile Organic Compounds (GC/MS) by Method 8270E 23 Gl: Glossary of Terms 30 Al: Accreditations & Locations 31 Sc: Sample Chain of Custody 32 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 2 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 2 of 33 SAMPLE SUMMARY Collected by Collected date/time Received date/time SS-1 L1642492-01 Solid Aric Clark 08/02/23 14:05 08/03/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2108300 1 08/05/23 18:07 08/05/23 18:22 CMK Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2110246 1 08/02/23 14:05 08/09/23 01:20 JBE Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2110345 1 08/09/23 09:28 08/10/23 07:12 JDJ Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2110345 20 08/09/23 09:28 08/12/23 06:48 JCH Mt. Juliet, TN Collected by Collected date/time Received date/time SS-1 L1642492-02 Waste Aric Clark 08/02/23 14:05 08/03/23 09:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Preparation by Method 1311 WG2108018 1 08/06/23 09:41 08/06/23 09:41 NAH Mt. Juliet, TN Preparation by Method 1311 WG2108027 1 08/06/23 12:24 08/06/23 12:24 JTM Mt. Juliet, TN Mercury by Method 7470A WG2108984 1 08/07/23 11:16 08/07/23 16:39 AKB Mt. Juliet, TN Metals (ICP) by Method 6010D WG2109177 1 08/07/23 12:37 08/08/23 12:22 ZSA Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260D WG2109635 1 08/09/23 19:47 08/09/23 19:47 JHH Mt. Juliet, TN Chlorinated Acid Herbicides (GC) by Method 8151A WG2109557 1 08/09/23 14:11 08/10/23 06:31 HMH Mt. Juliet, TN Pesticides (GC) by Method 8081B WG2109521 1 08/08/23 06:40 08/08/23 16:51 DLH Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 8270E WG2110330 1 08/09/23 07:53 08/10/23 04:08 MBE Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 3 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 3 of 33 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 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 4 of 33 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 4 of 33 SAMPLE RESULTS - 01 L1642492 SS-1 Collected date/time: 08/02/23 14:05 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 97.8 1 08/05/2023 18:22 WG2108300 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acetone ND C3 0.0532 1 08/09/2023 01:20 WG2110246 Acrylonitrile ND 0.0133 1 08/09/2023 01:20 WG2110246 Benzene 0.00118 0.00106 1 08/09/2023 01:20 WG2110246 Bromobenzene ND 0.0133 1 08/09/2023 01:20 WG2110246 Bromodichloromethane ND 0.00266 1 08/09/2023 01:20 WG2110246 Bromoform ND 0.0266 1 08/09/2023 01:20 WG2110246 Bromomethane ND 0.0133 1 08/09/2023 01:20 WG2110246 n-Butylbenzene ND 0.0133 1 08/09/2023 01:20 WG2110246 sec-Butylbenzene 0.0369 0.0133 1 08/09/2023 01:20 WG2110246 tert-Butylbenzene ND C3 0.00532 1 08/09/2023 01:20 WG2110246 Carbon tetrachloride ND 0.00532 1 08/09/2023 01:20 WG2110246 Chlorobenzene ND 0.00266 1 08/09/2023 01:20 WG2110246 Chlorodibromomethane ND 0.00266 1 08/09/2023 01:20 WG2110246 Chloroethane ND 0.00532 1 08/09/2023 01:20 WG2110246 Chloroform ND 0.00266 1 08/09/2023 01:20 WG2110246 Chloromethane ND J3 J4 0.0133 1 08/09/2023 01:20 WG2110246 2-Chlorotoluene ND 0.00266 1 08/09/2023 01:20 WG2110246 4-Chlorotoluene ND 0.00532 1 08/09/2023 01:20 WG2110246 1,2-Dibromo-3-Chloropropane ND 0.0266 1 08/09/2023 01:20 WG2110246 1,2-Dibromoethane ND 0.00266 1 08/09/2023 01:20 WG2110246 Dibromomethane ND 0.00532 1 08/09/2023 01:20 WG2110246 1,2-Dichlorobenzene ND 0.00532 1 08/09/2023 01:20 WG2110246 1,3-Dichlorobenzene ND 0.00532 1 08/09/2023 01:20 WG2110246 1,4-Dichlorobenzene ND 0.00532 1 08/09/2023 01:20 WG2110246 Dichlorodifluoromethane ND 0.00266 1 08/09/2023 01:20 WG2110246 1,1-Dichloroethane ND 0.00266 1 08/09/2023 01:20 WG2110246 1,2-Dichloroethane ND 0.00266 1 08/09/2023 01:20 WG2110246 1,1-Dichloroethene ND 0.00266 1 08/09/2023 01:20 WG2110246 cis-1,2-Dichloroethene ND 0.00266 1 08/09/2023 01:20 WG2110246 trans-1,2-Dichloroethene ND 0.00532 1 08/09/2023 01:20 WG2110246 1,2-Dichloropropane ND 0.00532 1 08/09/2023 01:20 WG2110246 1,1-Dichloropropene ND 0.00266 1 08/09/2023 01:20 WG2110246 1,3-Dichloropropane ND 0.00532 1 08/09/2023 01:20 WG2110246 cis-1,3-Dichloropropene ND 0.00266 1 08/09/2023 01:20 WG2110246 trans-1,3-Dichloropropene ND 0.00532 1 08/09/2023 01:20 WG2110246 2,2-Dichloropropane ND 0.00266 1 08/09/2023 01:20 WG2110246 Di-isopropyl ether ND 0.00106 1 08/09/2023 01:20 WG2110246 Ethylbenzene 0.00973 0.00266 1 08/09/2023 01:20 WG2110246 Hexachloro-1,3-butadiene ND 0.0266 1 08/09/2023 01:20 WG2110246 Isopropylbenzene ND 0.00266 1 08/09/2023 01:20 WG2110246 p-Isopropyltoluene 0.216 C3 0.00532 1 08/09/2023 01:20 WG2110246 2-Butanone (MEK)ND 0.106 1 08/09/2023 01:20 WG2110246 Methylene Chloride ND 0.0266 1 08/09/2023 01:20 WG2110246 4-Methyl-2-pentanone (MIBK)ND 0.0266 1 08/09/2023 01:20 WG2110246 Methyl tert-butyl ether ND 0.00106 1 08/09/2023 01:20 WG2110246 Naphthalene 0.201 C3 0.0133 1 08/09/2023 01:20 WG2110246 n-Propylbenzene ND 0.00532 1 08/09/2023 01:20 WG2110246 Styrene ND 0.0133 1 08/09/2023 01:20 WG2110246 1,1,1,2-Tetrachloroethane ND 0.00266 1 08/09/2023 01:20 WG2110246 1,1,2,2-Tetrachloroethane ND 0.00266 1 08/09/2023 01:20 WG2110246 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 5 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 5 of 33 SAMPLE RESULTS - 01 L1642492 SS-1 Collected date/time: 08/02/23 14:05 Volatile Organic Compounds (GC/MS) by Method 8260D Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time 1,1,2-Trichlorotrifluoroethane ND 0.00266 1 08/09/2023 01:20 WG2110246 Tetrachloroethene ND 0.00266 1 08/09/2023 01:20 WG2110246 Toluene 0.0149 0.00532 1 08/09/2023 01:20 WG2110246 1,2,3-Trichlorobenzene ND C3 0.0133 1 08/09/2023 01:20 WG2110246 1,2,4-Trichlorobenzene ND C3 0.0133 1 08/09/2023 01:20 WG2110246 1,1,1-Trichloroethane ND 0.00266 1 08/09/2023 01:20 WG2110246 1,1,2-Trichloroethane ND 0.00266 1 08/09/2023 01:20 WG2110246 Trichloroethene ND 0.00106 1 08/09/2023 01:20 WG2110246 Trichlorofluoromethane ND 0.00266 1 08/09/2023 01:20 WG2110246 1,2,3-Trichloropropane ND 0.0133 1 08/09/2023 01:20 WG2110246 1,2,4-Trimethylbenzene 0.456 C3 0.00532 1 08/09/2023 01:20 WG2110246 1,2,3-Trimethylbenzene 0.967 C3 0.00532 1 08/09/2023 01:20 WG2110246 1,3,5-Trimethylbenzene 0.565 0.00532 1 08/09/2023 01:20 WG2110246 Vinyl chloride ND J4 0.00266 1 08/09/2023 01:20 WG2110246 Xylenes, Total 0.299 0.00692 1 08/09/2023 01:20 WG2110246 (S) Toluene-d8 108 75.0-131 08/09/2023 01:20 WG2110246 (S) 4-Bromofluorobenzene 120 67.0-138 08/09/2023 01:20 WG2110246 (S) 1,2-Dichloroethane-d4 91.4 70.0-130 08/09/2023 01:20 WG2110246 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Acenaphthene ND 0.681 20 08/12/2023 06:48 WG2110345 Acenaphthylene ND 0.681 20 08/12/2023 06:48 WG2110345 Anthracene ND 0.681 20 08/12/2023 06:48 WG2110345 Benzidine ND 34.2 20 08/12/2023 06:48 WG2110345 Benzo(a)anthracene ND 0.681 20 08/12/2023 06:48 WG2110345 Benzo(b)fluoranthene ND 0.681 20 08/12/2023 06:48 WG2110345 Benzo(k)fluoranthene ND 0.681 20 08/12/2023 06:48 WG2110345 Benzo(g,h,i)perylene ND 0.681 20 08/12/2023 06:48 WG2110345 Benzo(a)pyrene ND 0.681 20 08/12/2023 06:48 WG2110345 Bis(2-chlorethoxy)methane ND 0.341 1 08/10/2023 07:12 WG2110345 Bis(2-chloroethyl)ether ND 0.341 1 08/10/2023 07:12 WG2110345 2,2-Oxybis(1-Chloropropane)ND 0.341 1 08/10/2023 07:12 WG2110345 4-Bromophenyl-phenylether ND 6.81 20 08/12/2023 06:48 WG2110345 2-Chloronaphthalene ND 0.681 20 08/12/2023 06:48 WG2110345 4-Chlorophenyl-phenylether ND 6.81 20 08/12/2023 06:48 WG2110345 Chrysene ND 0.681 20 08/12/2023 06:48 WG2110345 Dibenz(a,h)anthracene ND 0.681 20 08/12/2023 06:48 WG2110345 3,3-Dichlorobenzidine ND 6.81 20 08/12/2023 06:48 WG2110345 2,4-Dinitrotoluene ND 6.81 20 08/12/2023 06:48 WG2110345 2,6-Dinitrotoluene ND 6.81 20 08/12/2023 06:48 WG2110345 Fluoranthene ND 0.681 20 08/12/2023 06:48 WG2110345 Fluorene ND 0.681 20 08/12/2023 06:48 WG2110345 Hexachlorobenzene ND 6.81 20 08/12/2023 06:48 WG2110345 Hexachloro-1,3-butadiene ND 0.341 1 08/10/2023 07:12 WG2110345 Hexachlorocyclopentadiene ND C3 6.81 20 08/12/2023 06:48 WG2110345 Hexachloroethane ND 0.341 1 08/10/2023 07:12 WG2110345 Indeno(1,2,3-cd)pyrene ND J4 0.681 20 08/12/2023 06:48 WG2110345 Isophorone ND 0.341 1 08/10/2023 07:12 WG2110345 Naphthalene ND 0.0341 1 08/10/2023 07:12 WG2110345 Nitrobenzene ND 0.341 1 08/10/2023 07:12 WG2110345 n-Nitrosodimethylamine ND 0.341 1 08/10/2023 07:12 WG2110345 n-Nitrosodiphenylamine ND 6.81 20 08/12/2023 06:48 WG2110345 n-Nitrosodi-n-propylamine ND 0.341 1 08/10/2023 07:12 WG2110345 Phenanthrene ND 0.681 20 08/12/2023 06:48 WG2110345 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 6 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 6 of 33 SAMPLE RESULTS - 01 L1642492 SS-1 Collected date/time: 08/02/23 14:05 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result (dry)Qualifier RDL (dry)Dilution Analysis Batch Analyte mg/kg mg/kg date / time Benzylbutyl phthalate ND 6.81 20 08/12/2023 06:48 WG2110345 Bis(2-ethylhexyl)phthalate ND 6.81 20 08/12/2023 06:48 WG2110345 Di-n-butyl phthalate ND 6.81 20 08/12/2023 06:48 WG2110345 Diethyl phthalate ND 6.81 20 08/12/2023 06:48 WG2110345 Dimethyl phthalate ND 6.81 20 08/12/2023 06:48 WG2110345 Di-n-octyl phthalate ND 6.81 20 08/12/2023 06:48 WG2110345 Pyrene ND 0.681 20 08/12/2023 06:48 WG2110345 1,2,4-Trichlorobenzene ND 0.341 1 08/10/2023 07:12 WG2110345 4-Chloro-3-methylphenol ND 0.341 1 08/10/2023 07:12 WG2110345 2-Chlorophenol ND 0.341 1 08/10/2023 07:12 WG2110345 2,4-Dichlorophenol ND 0.341 1 08/10/2023 07:12 WG2110345 2,4-Dimethylphenol ND 0.341 1 08/10/2023 07:12 WG2110345 4,6-Dinitro-2-methylphenol ND 6.81 20 08/12/2023 06:48 WG2110345 2,4-Dinitrophenol ND 6.81 20 08/12/2023 06:48 WG2110345 2-Nitrophenol ND 0.341 1 08/10/2023 07:12 WG2110345 4-Nitrophenol ND 6.81 20 08/12/2023 06:48 WG2110345 Pentachlorophenol ND 6.81 20 08/12/2023 06:48 WG2110345 Phenol ND 0.341 1 08/10/2023 07:12 WG2110345 2,4,6-Trichlorophenol ND 6.81 20 08/12/2023 06:48 WG2110345 (S) 2-Fluorophenol 40.2 12.0-120 08/10/2023 07:12 WG2110345 (S) 2-Fluorophenol 63.9 J7 12.0-120 08/12/2023 06:48 WG2110345 (S) Phenol-d5 42.1 10.0-120 08/10/2023 07:12 WG2110345 (S) Phenol-d5 57.4 J7 10.0-120 08/12/2023 06:48 WG2110345 (S) Nitrobenzene-d5 0.000 J2 10.0-122 08/10/2023 07:12 WG2110345 (S) Nitrobenzene-d5 0.000 J7 10.0-122 08/12/2023 06:48 WG2110345 (S) 2-Fluorobiphenyl 59.1 J7 15.0-120 08/12/2023 06:48 WG2110345 (S) 2-Fluorobiphenyl 41.2 15.0-120 08/10/2023 07:12 WG2110345 (S) 2,4,6-Tribromophenol 64.5 10.0-127 08/10/2023 07:12 WG2110345 (S) 2,4,6-Tribromophenol 62.6 J7 10.0-127 08/12/2023 06:48 WG2110345 (S) p-Terphenyl-d14 56.4 10.0-120 08/10/2023 07:12 WG2110345 (S) p-Terphenyl-d14 69.1 J7 10.0-120 08/12/2023 06:48 WG2110345 Sample Narrative: L1642492-01 WG2110345: Dilution and surrogate failure due to matrix interference. L1642492-01 WG2110345: Surrogate failure due to matrix interference. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 7 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 7 of 33 SAMPLE RESULTS - 02 L1642492 SS-1 Collected date/time: 08/02/23 14:05 Preparation by Method 1311 Result Qualifier Prep Batch Analyte date / time TCLP Extraction -8/6/2023 9:41:54 AM WG2108018 TCLP ZHE Extraction -8/6/2023 12:24:28 PM WG2108027 Initial pH 8.71 8/6/2023 9:41:54 AM WG2108018 Final pH 5.01 8/6/2023 9:41:54 AM WG2108018 Mercury by Method 7470A Result Qualifier RDL Limit Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Mercury ND 0.0100 0.20 1 08/07/2023 16:39 WG2108984 Metals (ICP) by Method 6010D Result Qualifier RDL Limit Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Arsenic ND 0.100 5 1 08/08/2023 12:22 WG2109177 Barium 0.712 0.100 100 1 08/08/2023 12:22 WG2109177 Cadmium ND 0.100 1 1 08/08/2023 12:22 WG2109177 Chromium ND 0.100 5 1 08/08/2023 12:22 WG2109177 Lead ND 0.100 5 1 08/08/2023 12:22 WG2109177 Selenium ND 0.100 1 1 08/08/2023 12:22 WG2109177 Silver ND 0.100 5 1 08/08/2023 12:22 WG2109177 Volatile Organic Compounds (GC/MS) by Method 8260D Result Qualifier RDL Limit Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Benzene ND 0.0500 0.50 1 08/09/2023 19:47 WG2109635 Carbon tetrachloride ND 0.0500 0.50 1 08/09/2023 19:47 WG2109635 Chlorobenzene ND 0.0500 100 1 08/09/2023 19:47 WG2109635 Chloroform ND 0.250 6 1 08/09/2023 19:47 WG2109635 1,2-Dichloroethane ND 0.0500 0.50 1 08/09/2023 19:47 WG2109635 1,1-Dichloroethene ND 0.0500 0.70 1 08/09/2023 19:47 WG2109635 2-Butanone (MEK)ND 0.500 200 1 08/09/2023 19:47 WG2109635 Tetrachloroethene ND 0.0500 0.70 1 08/09/2023 19:47 WG2109635 Trichloroethene ND 0.0500 0.50 1 08/09/2023 19:47 WG2109635 Vinyl chloride ND 0.0500 0.20 1 08/09/2023 19:47 WG2109635 (S) Toluene-d8 107 80.0-120 08/09/2023 19:47 WG2109635 (S) 4-Bromofluorobenzene 94.9 77.0-126 08/09/2023 19:47 WG2109635 (S) 1,2-Dichloroethane-d4 104 70.0-130 08/09/2023 19:47 WG2109635 Chlorinated Acid Herbicides (GC) by Method 8151A Result Qualifier RDL Limit Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time 2,4,5-TP (Silvex)ND 0.00200 1 08/10/2023 06:31 WG2109557 2,4-D ND 0.00200 1 08/10/2023 06:31 WG2109557 (S) 2,4-Dichlorophenyl Acetic Acid 126 14.0-158 08/10/2023 06:31 WG2109557 Pesticides (GC) by Method 8081B Result Qualifier RDL Limit Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Chlordane ND 0.00500 0.03 1 08/08/2023 16:51 WG2109521 Endrin ND 0.00500 0.02 1 08/08/2023 16:51 WG2109521 Heptachlor ND 0.00500 0.0080 1 08/08/2023 16:51 WG2109521 Lindane ND 0.00500 0.40 1 08/08/2023 16:51 WG2109521 Methoxychlor ND 0.00500 10 1 08/08/2023 16:51 WG2109521 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 8 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 8 of 33 SAMPLE RESULTS - 02 L1642492 SS-1 Collected date/time: 08/02/23 14:05 Pesticides (GC) by Method 8081B Result Qualifier RDL Limit Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time Toxaphene ND 0.0100 0.50 1 08/08/2023 16:51 WG2109521 (S) Decachlorobiphenyl 70.2 10.0-128 08/08/2023 16:51 WG2109521 (S) Tetrachloro-m-xylene 69.4 10.0-127 08/08/2023 16:51 WG2109521 Semi Volatile Organic Compounds (GC/MS) by Method 8270E Result Qualifier RDL Limit Dilution Analysis Batch Analyte mg/l mg/l mg/l date / time 1,4-Dichlorobenzene ND 0.100 7.50 1 08/10/2023 04:08 WG2110330 2,4-Dinitrotoluene ND 0.100 0.13 1 08/10/2023 04:08 WG2110330 Hexachlorobenzene ND 0.100 0.13 1 08/10/2023 04:08 WG2110330 Hexachloro-1,3-butadiene ND 0.100 0.50 1 08/10/2023 04:08 WG2110330 Hexachloroethane ND 0.100 3 1 08/10/2023 04:08 WG2110330 Nitrobenzene ND 0.100 2 1 08/10/2023 04:08 WG2110330 Pyridine ND 0.100 5 1 08/10/2023 04:08 WG2110330 3&4-Methyl Phenol ND 0.100 400 1 08/10/2023 04:08 WG2110330 2-Methylphenol ND 0.100 200 1 08/10/2023 04:08 WG2110330 Pentachlorophenol ND 0.100 100 1 08/10/2023 04:08 WG2110330 2,4,5-Trichlorophenol ND 0.100 400 1 08/10/2023 04:08 WG2110330 2,4,6-Trichlorophenol ND 0.100 2 1 08/10/2023 04:08 WG2110330 (S) 2-Fluorophenol 16.0 10.0-120 08/10/2023 04:08 WG2110330 (S) Phenol-d5 10.0 10.0-120 08/10/2023 04:08 WG2110330 (S) Nitrobenzene-d5 46.4 10.0-127 08/10/2023 04:08 WG2110330 (S) 2-Fluorobiphenyl 46.7 10.0-130 08/10/2023 04:08 WG2110330 (S) 2,4,6-Tribromophenol 52.0 10.0-155 08/10/2023 04:08 WG2110330 (S) p-Terphenyl-d14 65.4 10.0-128 08/10/2023 04:08 WG2110330 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 9 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 9 of 33 QUALITY CONTROL SUMMARYWG2108300 Total Solids by Method 2540 G-2011 L1642492-01 Method Blank (MB) (MB) R3957465-1 08/05/23 18:22 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00100 L1642336-10 Original Sample (OS) • Duplicate (DUP) (OS) L1642336-10 08/05/23 18:22 • (DUP) R3957465-3 08/05/23 18:22 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 88.1 84.8 1 3.85 10 Laboratory Control Sample (LCS) (LCS) R3957465-2 08/05/23 18:22 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 85.0-115 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 10 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 10 of 33 QUALITY CONTROL SUMMARYWG2108984 Mercury by Method 7470A L1642492-02 Method Blank (MB) (MB) R3957752-1 08/07/23 16:23 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Mercury U 0.00330 0.0100 Laboratory Control Sample (LCS) (LCS) R3957752-2 08/07/23 16:25 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Mercury 0.0300 0.0345 115 80.0-120 L1642479-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1642479-02 08/07/23 16:27 • (MS) R3957752-3 08/07/23 16:30 • (MSD) R3957752-5 08/07/23 16:32 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Mercury 0.0300 ND 0.0351 0.0347 117 116 1 75.0-125 1.10 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 11 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 11 of 33 QUALITY CONTROL SUMMARYWG2109177 Metals (ICP) by Method 6010D L1642492-02 Method Blank (MB) (MB) R3958082-1 08/08/23 11:36 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Arsenic U 0.0333 0.100 Barium U 0.0333 0.100 Cadmium U 0.0333 0.100 Chromium U 0.0333 0.100 Lead U 0.0333 0.100 Selenium U 0.0333 0.100 Silver U 0.0333 0.100 Laboratory Control Sample (LCS) (LCS) R3958082-2 08/08/23 11:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Arsenic 10.0 10.3 103 80.0-120 Barium 10.0 9.91 99.1 80.0-120 Cadmium 10.0 9.73 97.3 80.0-120 Chromium 10.0 9.70 97.0 80.0-120 Lead 10.0 10.1 101 80.0-120 Selenium 10.0 9.51 95.1 80.0-120 Silver 2.00 1.92 96.2 80.0-120 L1641772-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1641772-05 08/08/23 11:41 • (MS) R3958082-4 08/08/23 11:46 • (MSD) R3958082-5 08/08/23 11:49 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Arsenic 10.0 ND 10.7 10.9 107 109 1 75.0-125 1.58 20 Barium 10.0 0.441 10.6 10.7 101 103 1 75.0-125 1.58 20 Cadmium 10.0 ND 10.1 10.2 101 102 1 75.0-125 0.919 20 Chromium 10.0 ND 9.97 9.94 99.7 99.4 1 75.0-125 0.244 20 Lead 10.0 ND 10.5 10.6 105 106 1 75.0-125 1.01 20 Selenium 10.0 ND 9.72 9.83 97.2 98.3 1 75.0-125 1.08 20 Silver 2.00 ND 2.00 2.01 100 100 1 75.0-125 0.275 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 12 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 12 of 33 QUALITY CONTROL SUMMARYWG2109635 Volatile Organic Compounds (GC/MS) by Method 8260D L1642492-02 Method Blank (MB) (MB) R3958810-2 08/09/23 15:01 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Benzene U 0.0167 0.0500 Carbon tetrachloride U 0.0167 0.0500 Chlorobenzene U 0.0167 0.0500 Chloroform U 0.0833 0.250 1,2-Dichloroethane U 0.0167 0.0500 1,1-Dichloroethene U 0.0167 0.0500 2-Butanone (MEK)U 0.167 0.500 Tetrachloroethene U 0.0167 0.0500 Trichloroethene U 0.0167 0.0500 Vinyl chloride U 0.0167 0.0500 (S) Toluene-d8 106 80.0-120 (S) 4-Bromofluorobenzene 99.4 77.0-126 (S) 1,2-Dichloroethane-d4 105 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3958810-1 08/09/23 12:15 • (LCSD) R3958810-5 08/09/23 21:03 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l %%%%% Benzene 0.250 0.240 0.252 96.0 101 70.0-123 4.88 20 Carbon tetrachloride 0.250 0.218 0.246 87.2 98.4 68.0-126 12.1 20 Chlorobenzene 0.250 0.243 0.255 97.2 102 80.0-121 4.82 20 Chloroform 0.250 0.216 0.236 86.4 94.4 73.0-120 8.85 20 1,2-Dichloroethane 0.250 0.229 0.244 91.6 97.6 70.0-128 6.34 20 1,1-Dichloroethene 0.250 0.209 0.233 83.6 93.2 71.0-124 10.9 20 2-Butanone (MEK)1.25 1.25 1.25 100 100 44.0-160 0.000 20 Tetrachloroethene 0.250 0.244 0.251 97.6 100 72.0-132 2.83 20 Trichloroethene 0.250 0.230 0.255 92.0 102 78.0-124 10.3 20 Vinyl chloride 0.250 0.234 0.244 93.6 97.6 67.0-131 4.18 20 (S) Toluene-d8 110 107 80.0-120 (S) 4-Bromofluorobenzene 92.8 96.2 77.0-126 (S) 1,2-Dichloroethane-d4 101 103 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 13 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 13 of 33 QUALITY CONTROL SUMMARYWG2109635 Volatile Organic Compounds (GC/MS) by Method 8260D L1642492-02 L1642101-11 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1642101-11 08/09/23 18:50 • (MS) R3958810-3 08/09/23 20:06 • (MSD) R3958810-4 08/09/23 20:25 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Benzene 0.250 ND 0.167 0.193 66.8 77.2 1 17.0-158 14.4 27 Carbon tetrachloride 0.250 ND 0.153 0.177 61.2 70.8 1 23.0-159 14.5 28 Chlorobenzene 0.250 ND 0.172 0.206 68.8 82.4 1 33.0-152 18.0 27 Chloroform 0.250 ND ND ND 61.6 74.0 1 29.0-154 18.3 28 1,2-Dichloroethane 0.250 ND 0.174 0.201 69.6 80.4 1 29.0-151 14.4 27 1,1-Dichloroethene 0.250 ND 0.145 0.169 58.0 67.6 1 11.0-160 15.3 29 2-Butanone (MEK)1.25 ND 0.881 1.09 70.5 87.2 1 10.0-160 21.2 32 Tetrachloroethene 0.250 ND 0.161 0.186 64.4 74.4 1 10.0-160 14.4 27 Trichloroethene 0.250 ND 0.149 0.178 59.6 71.2 1 10.0-160 17.7 25 Vinyl chloride 0.250 ND 0.151 0.184 60.4 73.6 1 10.0-160 19.7 27 (S) Toluene-d8 111 110 80.0-120 (S) 4-Bromofluorobenzene 96.6 95.5 77.0-126 (S) 1,2-Dichloroethane-d4 103 102 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 14 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 14 of 33 QUALITY CONTROL SUMMARYWG2110246 Volatile Organic Compounds (GC/MS) by Method 8260D L1642492-01 Method Blank (MB) (MB) R3960913-3 08/08/23 19:52 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Acetone U 0.0365 0.0500 Acrylonitrile U 0.00361 0.0125 Benzene U 0.000467 0.00100 Bromobenzene U 0.000900 0.0125 Bromodichloromethane U 0.000725 0.00250 Bromoform U 0.00117 0.0250 Bromomethane U 0.00197 0.0125 n-Butylbenzene U 0.00525 0.0125 sec-Butylbenzene U 0.00288 0.0125 tert-Butylbenzene U 0.00195 0.00500 Carbon tetrachloride U 0.000898 0.00500 Chlorobenzene U 0.000210 0.00250 Chlorodibromomethane U 0.000612 0.00250 Chloroethane 0.00523 0.00170 0.00500 Chloroform U 0.00103 0.00250 Chloromethane U 0.00435 0.0125 2-Chlorotoluene U 0.000865 0.00250 4-Chlorotoluene U 0.000450 0.00500 1,2-Dibromo-3-Chloropropane U 0.00390 0.0250 1,2-Dibromoethane U 0.000648 0.00250 Dibromomethane U 0.000750 0.00500 1,2-Dichlorobenzene U 0.000425 0.00500 1,3-Dichlorobenzene U 0.000600 0.00500 1,4-Dichlorobenzene U 0.000700 0.00500 Dichlorodifluoromethane U 0.00161 0.00250 1,1-Dichloroethane U 0.000491 0.00250 1,2-Dichloroethane U 0.000649 0.00250 1,1-Dichloroethene U 0.000606 0.00250 cis-1,2-Dichloroethene U 0.000734 0.00250 trans-1,2-Dichloroethene U 0.00104 0.00500 1,2-Dichloropropane U 0.00142 0.00500 1,1-Dichloropropene U 0.000809 0.00250 1,3-Dichloropropane U 0.000501 0.00500 cis-1,3-Dichloropropene U 0.000757 0.00250 trans-1,3-Dichloropropene U 0.00114 0.00500 2,2-Dichloropropane U 0.00138 0.00250 Di-isopropyl ether U 0.000410 0.00100 Ethylbenzene U 0.000737 0.00250 Hexachloro-1,3-butadiene U 0.00600 0.0250 Isopropylbenzene U 0.000425 0.00250 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 15 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 15 of 33 QUALITY CONTROL SUMMARYWG2110246 Volatile Organic Compounds (GC/MS) by Method 8260D L1642492-01 Method Blank (MB) (MB) R3960913-3 08/08/23 19:52 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg p-Isopropyltoluene U 0.00255 0.00500 2-Butanone (MEK)U 0.0635 0.100 Methylene Chloride U 0.00664 0.0250 4-Methyl-2-pentanone (MIBK)U 0.00228 0.0250 Methyl tert-butyl ether 0.000650 J 0.000350 0.00100 Naphthalene U 0.00488 0.0125 n-Propylbenzene U 0.000950 0.00500 Styrene U 0.000229 0.0125 1,1,1,2-Tetrachloroethane U 0.000948 0.00250 1,1,2,2-Tetrachloroethane U 0.000695 0.00250 1,1,2-Trichlorotrifluoroethane U 0.000754 0.00250 Tetrachloroethene U 0.000896 0.00250 Toluene U 0.00130 0.00500 1,2,3-Trichlorobenzene U 0.00733 0.0125 1,2,4-Trichlorobenzene U 0.00440 0.0125 1,1,1-Trichloroethane U 0.000923 0.00250 1,1,2-Trichloroethane U 0.000597 0.00250 Trichloroethene U 0.000584 0.00100 Trichlorofluoromethane U 0.000827 0.00250 1,2,3-Trichloropropane U 0.00162 0.0125 1,2,4-Trimethylbenzene U 0.00158 0.00500 1,2,3-Trimethylbenzene U 0.00158 0.00500 1,3,5-Trimethylbenzene U 0.00200 0.00500 Vinyl chloride U 0.00116 0.00250 Xylenes, Total U 0.000880 0.00650 (S) Toluene-d8 117 75.0-131 (S) 4-Bromofluorobenzene 85.6 67.0-138 (S) 1,2-Dichloroethane-d4 93.1 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3960913-1 08/08/23 18:14 • (LCSD) R3960913-2 08/08/23 18:34 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Acetone 0.625 0.465 0.501 74.4 80.2 10.0-160 7.45 31 Acrylonitrile 0.625 0.575 0.633 92.0 101 45.0-153 9.60 22 Benzene 0.125 0.109 0.112 87.2 89.6 70.0-123 2.71 20 Bromobenzene 0.125 0.121 0.127 96.8 102 73.0-121 4.84 20 Bromodichloromethane 0.125 0.106 0.114 84.8 91.2 73.0-121 7.27 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 16 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 16 of 33 QUALITY CONTROL SUMMARYWG2110246 Volatile Organic Compounds (GC/MS) by Method 8260D L1642492-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3960913-1 08/08/23 18:14 • (LCSD) R3960913-2 08/08/23 18:34 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Bromoform 0.125 0.126 0.128 101 102 64.0-132 1.57 20 Bromomethane 0.125 0.175 0.176 140 141 56.0-147 0.570 20 n-Butylbenzene 0.125 0.105 0.117 84.0 93.6 68.0-135 10.8 20 sec-Butylbenzene 0.125 0.101 0.110 80.8 88.0 74.0-130 8.53 20 tert-Butylbenzene 0.125 0.0956 0.102 76.5 81.6 75.0-127 6.48 20 Carbon tetrachloride 0.125 0.138 0.145 110 116 66.0-128 4.95 20 Chlorobenzene 0.125 0.120 0.124 96.0 99.2 76.0-128 3.28 20 Chlorodibromomethane 0.125 0.129 0.134 103 107 74.0-127 3.80 20 Chloroethane 0.125 0.151 0.155 121 124 61.0-134 2.61 20 Chloroform 0.125 0.115 0.120 92.0 96.0 72.0-123 4.26 20 Chloromethane 0.125 0.150 0.208 120 166 51.0-138 J3 J4 32.4 20 2-Chlorotoluene 0.125 0.121 0.131 96.8 105 75.0-124 7.94 20 4-Chlorotoluene 0.125 0.101 0.102 80.8 81.6 75.0-124 0.985 20 1,2-Dibromo-3-Chloropropane 0.125 0.113 0.112 90.4 89.6 59.0-130 0.889 20 1,2-Dibromoethane 0.125 0.115 0.117 92.0 93.6 74.0-128 1.72 20 Dibromomethane 0.125 0.107 0.117 85.6 93.6 75.0-122 8.93 20 1,2-Dichlorobenzene 0.125 0.110 0.121 88.0 96.8 76.0-124 9.52 20 1,3-Dichlorobenzene 0.125 0.111 0.119 88.8 95.2 76.0-125 6.96 20 1,4-Dichlorobenzene 0.125 0.115 0.122 92.0 97.6 77.0-121 5.91 20 Dichlorodifluoromethane 0.125 0.144 0.160 115 128 43.0-156 10.5 20 1,1-Dichloroethane 0.125 0.118 0.119 94.4 95.2 70.0-127 0.844 20 1,2-Dichloroethane 0.125 0.108 0.116 86.4 92.8 65.0-131 7.14 20 1,1-Dichloroethene 0.125 0.135 0.141 108 113 65.0-131 4.35 20 cis-1,2-Dichloroethene 0.125 0.115 0.115 92.0 92.0 73.0-125 0.000 20 trans-1,2-Dichloroethene 0.125 0.121 0.124 96.8 99.2 71.0-125 2.45 20 1,2-Dichloropropane 0.125 0.109 0.111 87.2 88.8 74.0-125 1.82 20 1,1-Dichloropropene 0.125 0.122 0.134 97.6 107 73.0-125 9.38 20 1,3-Dichloropropane 0.125 0.120 0.125 96.0 100 80.0-125 4.08 20 cis-1,3-Dichloropropene 0.125 0.102 0.105 81.6 84.0 76.0-127 2.90 20 trans-1,3-Dichloropropene 0.125 0.117 0.124 93.6 99.2 73.0-127 5.81 20 2,2-Dichloropropane 0.125 0.133 0.131 106 105 59.0-135 1.52 20 Di-isopropyl ether 0.125 0.110 0.110 88.0 88.0 60.0-136 0.000 20 Ethylbenzene 0.125 0.123 0.119 98.4 95.2 74.0-126 3.31 20 Hexachloro-1,3-butadiene 0.125 0.113 0.133 90.4 106 57.0-150 16.3 20 Isopropylbenzene 0.125 0.111 0.115 88.8 92.0 72.0-127 3.54 20 p-Isopropyltoluene 0.125 0.0991 0.108 79.3 86.4 72.0-133 8.59 20 2-Butanone (MEK)0.625 0.605 0.660 96.8 106 30.0-160 8.70 24 Methylene Chloride 0.125 0.106 0.112 84.8 89.6 68.0-123 5.50 20 4-Methyl-2-pentanone (MIBK)0.625 0.665 0.679 106 109 56.0-143 2.08 20 Methyl tert-butyl ether 0.125 0.116 0.120 92.8 96.0 66.0-132 3.39 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 17 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 17 of 33 QUALITY CONTROL SUMMARYWG2110246 Volatile Organic Compounds (GC/MS) by Method 8260D L1642492-01 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3960913-1 08/08/23 18:14 • (LCSD) R3960913-2 08/08/23 18:34 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg %%%%% Naphthalene 0.125 0.0832 0.0899 66.6 71.9 59.0-130 7.74 20 n-Propylbenzene 0.125 0.105 0.115 84.0 92.0 74.0-126 9.09 20 Styrene 0.125 0.107 0.115 85.6 92.0 72.0-127 7.21 20 1,1,1,2-Tetrachloroethane 0.125 0.138 0.143 110 114 74.0-129 3.56 20 1,1,2,2-Tetrachloroethane 0.125 0.122 0.126 97.6 101 68.0-128 3.23 20 1,1,2-Trichlorotrifluoroethane 0.125 0.119 0.126 95.2 101 61.0-139 5.71 20 Tetrachloroethene 0.125 0.142 0.148 114 118 70.0-136 4.14 20 Toluene 0.125 0.122 0.128 97.6 102 75.0-121 4.80 20 1,2,3-Trichlorobenzene 0.125 0.0938 0.110 75.0 88.0 59.0-139 15.9 20 1,2,4-Trichlorobenzene 0.125 0.0954 0.107 76.3 85.6 62.0-137 11.5 20 1,1,1-Trichloroethane 0.125 0.124 0.128 99.2 102 69.0-126 3.17 20 1,1,2-Trichloroethane 0.125 0.119 0.123 95.2 98.4 78.0-123 3.31 20 Trichloroethene 0.125 0.120 0.131 96.0 105 76.0-126 8.76 20 Trichlorofluoromethane 0.125 0.141 0.153 113 122 61.0-142 8.16 20 1,2,3-Trichloropropane 0.125 0.125 0.132 100 106 67.0-129 5.45 20 1,2,4-Trimethylbenzene 0.125 0.0966 0.101 77.3 80.8 70.0-126 4.45 20 1,2,3-Trimethylbenzene 0.125 0.0965 0.103 77.2 82.4 74.0-124 6.52 20 1,3,5-Trimethylbenzene 0.125 0.101 0.107 80.8 85.6 73.0-127 5.77 20 Vinyl chloride 0.125 0.163 0.178 130 142 63.0-134 J4 8.80 20 Xylenes, Total 0.375 0.341 0.357 90.9 95.2 72.0-127 4.58 20 (S) Toluene-d8 112 112 75.0-131 (S) 4-Bromofluorobenzene 89.5 87.5 67.0-138 (S) 1,2-Dichloroethane-d4 103 104 70.0-130 L1641201-17 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1641201-17 08/09/23 04:36 • (MS) R3960913-4 08/09/23 05:15 • (MSD) R3960913-5 08/09/23 05:35 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Acetone 16.4 ND 11.7 12.7 71.5 77.4 20 10.0-160 7.85 40 Acrylonitrile 16.4 ND 14.2 16.1 86.4 98.3 20 10.0-160 12.8 40 Benzene 3.27 ND 2.18 2.68 66.8 82.1 20 10.0-149 20.6 37 Bromobenzene 3.27 ND 2.67 3.50 81.7 107 20 10.0-156 27.0 38 Bromodichloromethane 3.27 ND 2.40 2.86 73.6 87.7 20 10.0-143 17.4 37 Bromoform 3.27 ND 3.22 3.81 98.7 117 20 10.0-146 16.6 36 Bromomethane 3.27 ND 2.95 3.95 90.2 121 20 10.0-149 29.0 38 n-Butylbenzene 3.27 ND 3.96 4.88 121 149 20 10.0-160 20.8 40 sec-Butylbenzene 3.27 ND 2.29 3.28 70.2 100 20 10.0-159 35.4 39 tert-Butylbenzene 3.27 ND 2.25 3.06 68.9 93.6 20 10.0-156 30.4 39 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 18 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 18 of 33 QUALITY CONTROL SUMMARYWG2110246 Volatile Organic Compounds (GC/MS) by Method 8260D L1642492-01 L1641201-17 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1641201-17 08/09/23 04:36 • (MS) R3960913-4 08/09/23 05:15 • (MSD) R3960913-5 08/09/23 05:35 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Carbon tetrachloride 3.27 ND 2.49 3.39 76.2 104 20 10.0-145 30.7 37 Chlorobenzene 3.27 ND 2.61 3.29 80.0 101 20 10.0-152 23.1 39 Chlorodibromomethane 3.27 ND 2.92 3.81 89.4 117 20 10.0-146 26.4 37 Chloroethane 3.27 ND 2.61 3.57 80.0 109 20 10.0-146 31.0 40 Chloroform 3.27 ND 2.43 3.06 74.5 93.6 20 10.0-146 22.8 37 Chloromethane 3.27 ND 3.07 3.95 94.0 121 20 10.0-159 25.0 37 2-Chlorotoluene 3.27 ND 2.60 3.36 79.6 103 20 10.0-159 25.6 38 4-Chlorotoluene 3.27 ND 2.21 2.97 67.7 91.1 20 10.0-155 29.5 39 1,2-Dibromo-3-Chloropropane 3.27 ND 3.04 3.67 93.2 112 20 10.0-151 18.6 39 1,2-Dibromoethane 3.27 ND 2.84 3.27 86.8 100 20 10.0-148 14.1 34 Dibromomethane 3.27 ND 2.61 2.99 80.0 91.5 20 10.0-147 13.4 35 1,2-Dichlorobenzene 3.27 ND 2.60 3.35 79.6 103 20 10.0-155 25.2 37 1,3-Dichlorobenzene 3.27 ND 2.52 3.38 77.0 103 20 10.0-153 29.2 38 1,4-Dichlorobenzene 3.27 ND 2.45 3.32 74.9 102 20 10.0-151 30.4 38 Dichlorodifluoromethane 3.27 ND 2.60 3.54 79.6 109 20 10.0-160 30.8 35 1,1-Dichloroethane 3.27 ND 2.32 2.93 71.1 89.8 20 10.0-147 23.3 37 1,2-Dichloroethane 3.27 ND 2.52 2.89 77.0 88.5 20 10.0-148 13.9 35 1,1-Dichloroethene 3.27 ND 2.29 3.16 70.2 96.6 20 10.0-155 31.6 37 cis-1,2-Dichloroethene 3.27 ND 2.24 2.91 68.5 88.9 20 10.0-149 25.9 37 trans-1,2-Dichloroethene 3.27 ND 2.25 2.92 68.9 89.4 20 10.0-150 25.8 37 1,2-Dichloropropane 3.27 ND 2.31 2.84 70.6 86.8 20 10.0-148 20.5 37 1,1-Dichloropropene 3.27 ND 2.24 3.09 68.5 94.5 20 10.0-153 31.9 35 1,3-Dichloropropane 3.27 ND 2.75 3.29 84.3 101 20 10.0-154 17.9 35 cis-1,3-Dichloropropene 3.27 ND 2.36 2.67 72.3 81.7 20 10.0-151 12.2 37 trans-1,3-Dichloropropene 3.27 ND 2.79 3.36 85.5 103 20 10.0-148 18.5 37 2,2-Dichloropropane 3.27 ND 2.61 3.57 80.0 109 20 10.0-138 31.0 36 Di-isopropyl ether 3.27 ND 2.49 2.95 76.2 90.2 20 10.0-147 16.9 36 Ethylbenzene 3.27 ND 2.52 3.20 75.6 96.4 20 10.0-160 23.8 38 Hexachloro-1,3-butadiene 3.27 ND 2.79 3.88 85.5 119 20 10.0-160 32.5 40 Isopropylbenzene 3.27 ND 2.65 3.49 79.2 105 20 10.0-155 27.1 38 p-Isopropyltoluene 3.27 ND 2.46 3.46 75.3 106 20 10.0-160 33.8 40 2-Butanone (MEK)16.4 ND 15.2 16.8 92.4 103 20 10.0-160 10.4 40 Methylene Chloride 3.27 ND 2.04 2.57 62.6 78.7 20 10.0-141 22.9 37 4-Methyl-2-pentanone (MIBK)16.4 ND 16.1 18.6 98.3 114 20 10.0-160 14.4 35 Methyl tert-butyl ether 3.27 ND 2.81 3.35 86.0 103 20 11.0-147 17.6 35 Naphthalene 3.27 0.500 2.67 3.35 66.4 87.2 20 10.0-160 22.6 36 n-Propylbenzene 3.27 ND 2.18 3.04 65.5 91.9 20 10.0-158 33.0 38 Styrene 3.27 ND 2.61 3.41 80.0 104 20 10.0-160 26.3 40 1,1,1,2-Tetrachloroethane 3.27 ND 3.13 3.95 95.7 121 20 10.0-149 23.2 39 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 19 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 19 of 33 QUALITY CONTROL SUMMARYWG2110246 Volatile Organic Compounds (GC/MS) by Method 8260D L1642492-01 L1641201-17 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1641201-17 08/09/23 04:36 • (MS) R3960913-4 08/09/23 05:15 • (MSD) R3960913-5 08/09/23 05:35 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% 1,1,2,2-Tetrachloroethane 3.27 ND 3.16 3.56 96.6 109 20 10.0-160 12.0 35 1,1,2-Trichlorotrifluoroethane 3.27 ND 2.08 2.85 63.8 87.2 20 10.0-160 31.0 36 Tetrachloroethene 3.27 ND 2.60 3.74 79.6 114 20 10.0-156 36.0 39 Toluene 3.27 ND 2.49 3.21 73.3 95.5 20 10.0-156 25.4 38 1,2,3-Trichlorobenzene 3.27 ND 2.42 3.29 74.0 101 20 10.0-160 30.7 40 1,2,4-Trichlorobenzene 3.27 ND 2.54 3.57 77.9 109 20 10.0-160 33.6 40 1,1,1-Trichloroethane 3.27 ND 2.36 3.14 72.3 96.2 20 10.0-144 28.3 35 1,1,2-Trichloroethane 3.27 ND 2.93 3.39 89.8 104 20 10.0-160 14.5 35 Trichloroethene 3.27 ND 2.28 3.04 69.8 93.2 20 10.0-156 28.7 38 Trichlorofluoromethane 3.27 ND 2.57 3.42 78.7 105 20 10.0-160 28.3 40 1,2,3-Trichloropropane 3.27 ND 2.93 3.46 89.8 106 20 10.0-156 16.5 35 1,2,4-Trimethylbenzene 3.27 0.841 2.54 3.13 52.1 70.0 20 10.0-160 20.6 36 1,2,3-Trimethylbenzene 3.27 0.247 2.28 2.95 62.2 82.6 20 10.0-160 25.5 36 1,3,5-Trimethylbenzene 3.27 0.282 2.31 3.04 62.0 84.6 20 10.0-160 27.5 38 Vinyl chloride 3.27 ND 2.64 3.57 80.9 109 20 10.0-160 30.0 37 Xylenes, Total 9.80 0.671 7.63 10.1 71.0 96.4 20 10.0-160 28.0 38 (S) Toluene-d8 112 115 75.0-131 (S) 4-Bromofluorobenzene 94.9 95.1 67.0-138 (S) 1,2-Dichloroethane-d4 101 96.4 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 20 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 20 of 33 QUALITY CONTROL SUMMARYWG2109557 Chlorinated Acid Herbicides (GC) by Method 8151A L1642492-02 Method Blank (MB) (MB) R3959198-1 08/10/23 04:40 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 2,4,5-TP (Silvex)U 0.000667 0.00200 2,4-D U 0.000667 0.00200 (S) 2,4-Dichlorophenyl Acetic Acid 122 14.0-158 Laboratory Control Sample (LCS) (LCS) R3959198-2 08/10/23 04:51 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 2,4,5-TP (Silvex)0.0500 0.0530 106 50.0-125 E 2,4-D 0.0500 0.0519 104 50.0-120 E (S) 2,4-Dichlorophenyl Acetic Acid 122 14.0-158 L1641368-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1641368-02 08/10/23 07:38 • (MS) R3959198-3 08/10/23 07:49 • (MSD) R3959198-4 08/10/23 08:00 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 2,4,5-TP (Silvex)0.0500 ND 0.0552 0.0511 110 102 1 50.0-125 E E 7.71 20 2,4-D 0.0500 ND 0.0525 0.0486 105 97.2 1 50.0-120 E 7.72 20 (S) 2,4-Dichlorophenyl Acetic Acid 132 126 14.0-158 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 21 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 21 of 33 QUALITY CONTROL SUMMARYWG2109521 Pesticides (GC) by Method 8081B L1642492-02 Method Blank (MB) (MB) R3958404-1 08/08/23 15:15 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Chlordane U 0.00167 0.00500 Endrin U 0.00167 0.00500 Heptachlor U 0.00167 0.00500 Lindane U 0.00167 0.00500 Methoxychlor U 0.00167 0.00500 Toxaphene U 0.00333 0.0100 (S) Decachlorobiphenyl 83.5 10.0-128 (S) Tetrachloro-m-xylene 86.8 10.0-127 Laboratory Control Sample (LCS) (LCS) R3958404-2 08/08/23 15:25 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% Endrin 0.0100 0.00969 96.9 57.0-134 Heptachlor 0.0100 0.00947 94.7 27.0-132 Lindane 0.0100 0.00911 91.1 55.0-129 Methoxychlor 0.0100 0.00992 99.2 54.0-155 (S) Decachlorobiphenyl 84.7 10.0-128 (S) Tetrachloro-m-xylene 78.2 10.0-127 L1639522-04 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1639522-04 08/08/23 15:34 • (MS) R3958404-3 08/08/23 15:44 • (MSD) R3958404-4 08/08/23 15:53 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% Endrin 0.0100 ND ND 0.00537 37.0 53.7 1 10.0-160 36.8 39 Heptachlor 0.0100 ND ND ND 30.5 41.0 1 16.0-136 P 29.4 40 Lindane 0.0100 ND 0.00587 0.00701 58.7 70.1 1 14.0-141 17.7 40 Methoxychlor 0.0100 ND ND ND 28.3 45.0 1 10.0-160 J3 45.6 34 (S) Decachlorobiphenyl 10.4 21.5 10.0-128 (S) Tetrachloro-m-xylene 32.8 46.2 10.0-127 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 22 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 22 of 33 QUALITY CONTROL SUMMARYWG2110330 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1642492-02 Method Blank (MB) (MB) R3958826-2 08/09/23 23:08 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l 1,4-Dichlorobenzene U 0.0333 0.100 2,4-Dinitrotoluene U 0.0333 0.100 Hexachlorobenzene U 0.0333 0.100 Hexachloro-1,3-butadiene U 0.0333 0.100 Hexachloroethane U 0.0333 0.100 Nitrobenzene U 0.0333 0.100 Pyridine U 0.0333 0.100 3&4-Methyl Phenol U 0.0333 0.100 2-Methylphenol U 0.0333 0.100 Pentachlorophenol U 0.0333 0.100 2,4,5-Trichlorophenol U 0.0333 0.100 2,4,6-Trichlorophenol U 0.0333 0.100 (S) 2-Fluorophenol 26.6 10.0-120 (S) Phenol-d5 15.7 10.0-120 (S) Nitrobenzene-d5 58.1 10.0-127 (S) 2-Fluorobiphenyl 62.3 10.0-130 (S) 2,4,6-Tribromophenol 53.0 10.0-155 (S) p-Terphenyl-d14 71.6 10.0-128 Laboratory Control Sample (LCS) (LCS) R3958826-1 08/09/23 22:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% 1,4-Dichlorobenzene 0.500 0.347 69.4 18.0-120 2,4-Dinitrotoluene 0.500 0.487 97.4 49.0-124 Hexachlorobenzene 0.500 0.397 79.4 44.0-120 Hexachloro-1,3-butadiene 0.500 0.369 73.8 19.0-120 Hexachloroethane 0.500 0.347 69.4 15.0-120 Nitrobenzene 0.500 0.355 71.0 27.0-120 Pyridine 0.500 0.119 23.8 10.0-120 3&4-Methyl Phenol 0.500 0.294 58.8 31.0-120 2-Methylphenol 0.500 0.289 57.8 28.0-120 Pentachlorophenol 0.500 0.406 81.2 23.0-120 2,4,5-Trichlorophenol 0.500 0.463 92.6 44.0-120 2,4,6-Trichlorophenol 0.500 0.446 89.2 42.0-120 (S) 2-Fluorophenol 37.7 10.0-120 (S) Phenol-d5 26.9 10.0-120 (S) Nitrobenzene-d5 74.7 10.0-127 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 23 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 23 of 33 QUALITY CONTROL SUMMARYWG2110330 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1642492-02 Laboratory Control Sample (LCS) (LCS) R3958826-1 08/09/23 22:46 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/l mg/l %% (S) 2-Fluorobiphenyl 78.0 10.0-130 (S) 2,4,6-Tribromophenol 83.5 10.0-155 (S) p-Terphenyl-d14 91.5 10.0-128 L1641733-07 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1641733-07 08/10/23 00:12 • (MS) R3958826-3 08/10/23 00:33 • (MSD) R3958826-4 08/10/23 00:55 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/l mg/l mg/l mg/l %%%%% 1,4-Dichlorobenzene 0.500 ND 0.215 0.240 43.0 48.0 1 17.0-120 11.0 40 2,4-Dinitrotoluene 0.500 ND 0.315 0.349 63.0 69.8 1 39.0-125 10.2 25 Hexachlorobenzene 0.500 ND 0.255 0.271 51.0 54.2 1 35.0-122 6.08 24 Hexachloro-1,3-butadiene 0.500 ND 0.244 0.252 48.8 50.4 1 12.0-120 3.23 34 Hexachloroethane 0.500 ND 0.217 0.241 43.4 48.2 1 10.0-120 10.5 40 Nitrobenzene 0.500 ND 0.236 0.258 47.2 51.6 1 12.0-120 8.91 30 Pyridine 0.500 ND ND ND 12.8 12.4 1 10.0-120 3.17 37 3&4-Methyl Phenol 0.500 ND 0.182 0.185 36.4 37.0 1 10.0-120 1.63 36 2-Methylphenol 0.500 ND 0.181 0.183 36.2 36.6 1 10.0-120 1.10 30 Pentachlorophenol 0.500 ND 0.268 0.281 53.6 56.2 1 10.0-128 4.74 37 2,4,5-Trichlorophenol 0.500 ND 0.296 0.314 59.2 62.8 1 33.0-120 5.90 31 2,4,6-Trichlorophenol 0.500 ND 0.289 0.304 57.8 60.8 1 26.0-120 5.06 31 (S) 2-Fluorophenol 25.1 25.9 10.0-120 (S) Phenol-d5 15.3 16.5 10.0-120 (S) Nitrobenzene-d5 45.1 49.9 10.0-127 (S) 2-Fluorobiphenyl 51.3 53.4 10.0-130 (S) 2,4,6-Tribromophenol 53.0 57.0 10.0-155 (S) p-Terphenyl-d14 56.6 63.5 10.0-128 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 24 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 24 of 33 QUALITY CONTROL SUMMARYWG2110345 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1642492-01 Method Blank (MB) (MB) R3959596-2 08/10/23 01:02 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Acenaphthene U 0.00539 0.0333 Acenaphthylene U 0.00469 0.0333 Anthracene U 0.00593 0.0333 Benzidine U 0.0626 1.67 Benzo(a)anthracene U 0.00587 0.0333 Benzo(b)fluoranthene U 0.00621 0.0333 Benzo(k)fluoranthene U 0.00592 0.0333 Benzo(g,h,i)perylene U 0.00609 0.0333 Benzo(a)pyrene U 0.00619 0.0333 Bis(2-chlorethoxy)methane U 0.0100 0.333 Bis(2-chloroethyl)ether U 0.0110 0.333 2,2-Oxybis(1-Chloropropane)U 0.0144 0.333 4-Bromophenyl-phenylether U 0.0117 0.333 2-Chloronaphthalene U 0.00585 0.0333 4-Chlorophenyl-phenylether U 0.0116 0.333 Chrysene U 0.00662 0.0333 Dibenz(a,h)anthracene U 0.00923 0.0333 3,3-Dichlorobenzidine U 0.0123 0.333 2,4-Dinitrotoluene U 0.00955 0.333 2,6-Dinitrotoluene U 0.0109 0.333 Fluoranthene U 0.00601 0.0333 Fluorene U 0.00542 0.0333 Hexachlorobenzene U 0.0118 0.333 Hexachloro-1,3-butadiene U 0.0112 0.333 Hexachlorocyclopentadiene U 0.0175 0.333 Hexachloroethane U 0.0131 0.333 Indeno(1,2,3-cd)pyrene U 0.00941 0.0333 Isophorone U 0.0102 0.333 Naphthalene U 0.00836 0.0333 Nitrobenzene U 0.0116 0.333 n-Nitrosodimethylamine U 0.0494 0.333 n-Nitrosodiphenylamine U 0.0252 0.333 n-Nitrosodi-n-propylamine U 0.0111 0.333 Phenanthrene U 0.00661 0.0333 Benzylbutyl phthalate U 0.0104 0.333 Bis(2-ethylhexyl)phthalate U 0.0422 0.333 Di-n-butyl phthalate U 0.0114 0.333 Diethyl phthalate U 0.0110 0.333 Dimethyl phthalate U 0.0706 0.333 Di-n-octyl phthalate U 0.0225 0.333 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 25 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 25 of 33 QUALITY CONTROL SUMMARYWG2110345 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1642492-01 Method Blank (MB) (MB) R3959596-2 08/10/23 01:02 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg Pyrene U 0.00648 0.0333 1,2,4-Trichlorobenzene U 0.0104 0.333 4-Chloro-3-methylphenol U 0.0108 0.333 2-Chlorophenol U 0.0110 0.333 2,4-Dichlorophenol U 0.00970 0.333 2,4-Dimethylphenol U 0.00870 0.333 4,6-Dinitro-2-methylphenol U 0.0755 0.333 2,4-Dinitrophenol U 0.0779 0.333 2-Nitrophenol U 0.0119 0.333 4-Nitrophenol U 0.0104 0.333 Pentachlorophenol U 0.00896 0.333 Phenol U 0.0134 0.333 2,4,6-Trichlorophenol U 0.0107 0.333 (S) 2-Fluorophenol 54.2 12.0-120 (S) Phenol-d5 54.5 10.0-120 (S) Nitrobenzene-d5 55.9 10.0-122 (S) 2-Fluorobiphenyl 40.8 15.0-120 (S) 2,4,6-Tribromophenol 39.6 10.0-127 (S) p-Terphenyl-d14 52.6 10.0-120 Laboratory Control Sample (LCS) (LCS) R3959596-1 08/10/23 00:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Acenaphthene 0.666 0.314 47.1 38.0-120 Acenaphthylene 0.666 0.285 42.8 40.0-120 Anthracene 0.666 0.332 49.8 42.0-120 Benzidine 1.33 0.229 17.2 10.0-120 Benzo(a)anthracene 0.666 0.357 53.6 44.0-120 Benzo(b)fluoranthene 0.666 0.346 52.0 43.0-120 Benzo(k)fluoranthene 0.666 0.346 52.0 44.0-120 Benzo(g,h,i)perylene 0.666 0.321 48.2 43.0-120 Benzo(a)pyrene 0.666 0.368 55.3 45.0-120 Bis(2-chlorethoxy)methane 0.666 0.299 44.9 20.0-120 Bis(2-chloroethyl)ether 0.666 0.355 53.3 16.0-120 2,2-Oxybis(1-Chloropropane)0.666 0.309 46.4 23.0-120 4-Bromophenyl-phenylether 0.666 0.297 44.6 40.0-120 2-Chloronaphthalene 0.666 0.282 42.3 35.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 26 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 26 of 33 QUALITY CONTROL SUMMARYWG2110345 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1642492-01 Laboratory Control Sample (LCS) (LCS) R3959596-1 08/10/23 00:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% 4-Chlorophenyl-phenylether 0.666 0.285 42.8 40.0-120 Chrysene 0.666 0.343 51.5 43.0-120 Dibenz(a,h)anthracene 0.666 0.300 45.0 44.0-120 3,3-Dichlorobenzidine 1.33 0.575 43.2 28.0-120 2,4-Dinitrotoluene 0.666 0.366 55.0 45.0-120 2,6-Dinitrotoluene 0.666 0.321 48.2 42.0-120 Fluoranthene 0.666 0.336 50.5 44.0-120 Fluorene 0.666 0.300 45.0 41.0-120 Hexachlorobenzene 0.666 0.267 40.1 39.0-120 Hexachloro-1,3-butadiene 0.666 0.218 32.7 15.0-120 Hexachlorocyclopentadiene 0.666 0.177 26.6 15.0-120 Hexachloroethane 0.666 0.307 46.1 17.0-120 Indeno(1,2,3-cd)pyrene 0.666 0.290 43.5 45.0-120 J4 Isophorone 0.666 0.298 44.7 23.0-120 Naphthalene 0.666 0.249 37.4 18.0-120 Nitrobenzene 0.666 0.328 49.2 17.0-120 n-Nitrosodimethylamine 0.666 0.478 71.8 10.0-125 n-Nitrosodiphenylamine 0.666 0.324 48.6 40.0-120 n-Nitrosodi-n-propylamine 0.666 0.380 57.1 26.0-120 Phenanthrene 0.666 0.329 49.4 42.0-120 Benzylbutyl phthalate 0.666 0.362 54.4 40.0-120 Bis(2-ethylhexyl)phthalate 0.666 0.374 56.2 41.0-120 Di-n-butyl phthalate 0.666 0.350 52.6 43.0-120 Diethyl phthalate 0.666 0.309 46.4 43.0-120 Dimethyl phthalate 0.666 0.312 46.8 43.0-120 Di-n-octyl phthalate 0.666 0.343 51.5 40.0-120 Pyrene 0.666 0.345 51.8 41.0-120 1,2,4-Trichlorobenzene 0.666 0.224 33.6 17.0-120 4-Chloro-3-methylphenol 0.666 0.271 40.7 28.0-120 2-Chlorophenol 0.666 0.303 45.5 28.0-120 2,4-Dichlorophenol 0.666 0.248 37.2 25.0-120 2,4-Dimethylphenol 0.666 0.320 48.0 15.0-120 4,6-Dinitro-2-methylphenol 0.666 0.372 55.9 16.0-120 2,4-Dinitrophenol 0.666 0.255 38.3 10.0-120 2-Nitrophenol 0.666 0.282 42.3 20.0-120 4-Nitrophenol 0.666 0.304 45.6 27.0-120 Pentachlorophenol 0.666 0.276 41.4 29.0-120 Phenol 0.666 0.365 54.8 28.0-120 2,4,6-Trichlorophenol 0.666 0.257 38.6 37.0-120 (S) 2-Fluorophenol 52.9 12.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 27 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 27 of 33 QUALITY CONTROL SUMMARYWG2110345 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1642492-01 Laboratory Control Sample (LCS) (LCS) R3959596-1 08/10/23 00:41 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% (S) Phenol-d5 53.0 10.0-120 (S) Nitrobenzene-d5 46.5 10.0-122 (S) 2-Fluorobiphenyl 40.2 15.0-120 (S) 2,4,6-Tribromophenol 44.3 10.0-127 (S) p-Terphenyl-d14 47.7 10.0-120 L1642776-10 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1642776-10 08/10/23 02:24 • (MS) R3959596-3 08/10/23 02:44 • (MSD) R3959596-4 08/10/23 03:04 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Acenaphthene 0.697 ND 0.302 0.343 43.3 49.8 1 18.0-120 12.8 32 Acenaphthylene 0.697 ND 0.270 0.315 38.8 45.8 1 25.0-120 15.2 32 Anthracene 0.697 ND 0.323 0.385 46.4 56.0 1 22.0-120 17.4 29 Benzidine 1.40 ND ND ND 22.2 22.1 1 10.0-120 2.11 40 Benzo(a)anthracene 0.697 ND 0.334 0.387 48.0 56.3 1 25.0-120 14.7 29 Benzo(b)fluoranthene 0.697 ND 0.309 0.370 44.4 53.8 1 19.0-122 17.8 31 Benzo(k)fluoranthene 0.697 ND 0.308 0.373 44.3 54.2 1 23.0-120 19.0 30 Benzo(g,h,i)perylene 0.697 ND 0.286 0.343 41.0 49.8 1 10.0-120 18.2 33 Benzo(a)pyrene 0.697 ND 0.334 0.398 48.0 57.9 1 24.0-120 17.4 30 Bis(2-chlorethoxy)methane 0.697 ND ND ND 40.2 47.0 1 10.0-120 14.3 34 Bis(2-chloroethyl)ether 0.697 ND ND 0.405 47.4 58.8 1 10.0-120 20.3 40 2,2-Oxybis(1-Chloropropane)0.697 ND ND ND 40.5 50.8 1 10.0-120 21.2 40 4-Bromophenyl-phenylether 0.697 ND ND ND 40.2 50.0 1 27.0-120 20.5 30 2-Chloronaphthalene 0.697 ND 0.268 0.312 38.5 45.3 1 20.0-120 14.9 32 4-Chlorophenyl-phenylether 0.697 ND ND ND 38.0 46.2 1 24.0-120 18.2 29 Chrysene 0.697 ND 0.330 0.376 47.4 54.7 1 21.0-120 13.2 29 Dibenz(a,h)anthracene 0.697 ND 0.282 0.328 40.5 47.6 1 10.0-120 14.9 32 3,3-Dichlorobenzidine 1.40 ND 0.569 0.650 40.8 47.3 1 10.0-120 13.3 34 2,4-Dinitrotoluene 0.697 ND ND 0.412 50.2 59.9 1 30.0-120 16.5 31 2,6-Dinitrotoluene 0.697 ND ND 0.362 44.7 52.7 1 25.0-120 15.1 31 Fluoranthene 0.697 ND 0.326 0.396 46.7 57.5 1 18.0-126 19.5 32 Fluorene 0.697 ND 0.285 0.339 40.8 49.2 1 25.0-120 17.4 30 Hexachlorobenzene 0.697 ND ND ND 36.0 44.0 1 27.0-120 18.8 28 Hexachloro-1,3-butadiene 0.697 ND ND ND 29.0 34.4 1 10.0-120 15.8 38 Hexachlorocyclopentadiene 0.697 ND ND ND 19.3 24.5 1 10.0-120 22.9 40 Hexachloroethane 0.697 ND ND ND 40.7 50.2 1 10.0-120 19.6 40 Indeno(1,2,3-cd)pyrene 0.697 ND 0.272 0.318 39.0 46.2 1 10.0-120 15.8 32 Isophorone 0.697 ND ND ND 41.8 47.3 1 13.0-120 11.2 34 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 28 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 28 of 33 QUALITY CONTROL SUMMARYWG2110345 Semi Volatile Organic Compounds (GC/MS) by Method 8270E L1642492-01 L1642776-10 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1642776-10 08/10/23 02:24 • (MS) R3959596-3 08/10/23 02:44 • (MSD) R3959596-4 08/10/23 03:04 Spike Amount (dry) Original Result (dry)MS Result (dry)MSD Result (dry)MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% Naphthalene 0.697 ND 0.236 0.272 33.9 39.5 1 10.0-120 14.1 35 Nitrobenzene 0.697 ND ND ND 43.0 51.7 1 10.0-120 17.2 36 n-Nitrosodimethylamine 0.697 ND 0.444 0.518 63.7 75.3 1 10.0-127 15.5 40 n-Nitrosodiphenylamine 0.697 ND ND 0.364 44.9 52.8 1 17.0-120 15.0 29 n-Nitrosodi-n-propylamine 0.697 ND ND 0.433 50.6 62.9 1 10.0-120 20.4 37 Phenanthrene 0.697 ND 0.312 0.373 44.7 54.2 1 17.0-120 18.0 31 Benzylbutyl phthalate 0.697 ND ND 0.409 49.8 59.4 1 23.0-120 16.3 30 Bis(2-ethylhexyl)phthalate 0.697 ND 0.360 0.414 51.7 60.2 1 17.0-126 14.0 30 Di-n-butyl phthalate 0.697 ND ND 0.410 48.0 59.6 1 30.0-120 20.3 29 Diethyl phthalate 0.697 ND ND ND 42.9 48.7 1 26.0-120 11.6 28 Dimethyl phthalate 0.697 ND ND ND 43.6 50.9 1 25.0-120 14.2 29 Di-n-octyl phthalate 0.697 ND ND 0.389 47.2 56.6 1 21.0-123 16.9 29 Pyrene 0.697 ND 0.333 0.386 47.8 56.1 1 16.0-121 14.7 32 1,2,4-Trichlorobenzene 0.697 ND ND ND 29.8 35.1 1 12.0-120 14.9 37 4-Chloro-3-methylphenol 0.697 ND ND ND 37.9 43.6 1 15.0-120 12.7 30 2-Chlorophenol 0.697 ND ND ND 40.2 49.2 1 15.0-120 18.9 37 2,4-Dichlorophenol 0.697 ND ND ND 34.0 38.4 1 20.0-120 10.8 31 2,4-Dimethylphenol 0.697 ND ND ND 42.2 47.3 1 10.0-120 10.1 33 4,6-Dinitro-2-methylphenol 0.697 ND 0.373 0.467 53.6 67.9 1 10.0-120 22.4 39 2,4-Dinitrophenol 0.697 ND ND 0.415 48.3 60.4 1 10.0-121 21.0 40 2-Nitrophenol 0.697 ND ND ND 38.7 44.2 1 12.0-120 12.1 39 4-Nitrophenol 0.697 ND ND 0.367 45.3 53.3 1 10.0-137 14.9 32 Pentachlorophenol 0.697 ND ND ND 39.8 48.7 1 10.0-160 19.1 31 Phenol 0.697 ND ND 0.399 48.4 58.0 1 12.0-120 16.7 38 2,4,6-Trichlorophenol 0.697 ND ND ND 36.2 41.8 1 19.0-120 13.2 32 (S) 2-Fluorophenol 46.1 55.3 12.0-120 (S) Phenol-d5 49.2 58.2 10.0-120 (S) Nitrobenzene-d5 42.2 48.4 10.0-122 (S) 2-Fluorobiphenyl 36.6 43.1 15.0-120 (S) 2,4,6-Tribromophenol 40.1 46.2 10.0-127 (S) p-Terphenyl-d14 42.2 49.7 10.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 29 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 29 of 33 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 (dry)Results are reported based on the dry weight of the sample. [this will only be present on a dry report basis for soils]. MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. RDL (dry)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 C3 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low. Method sensitivity check is acceptable. E The analyte concentration exceeds the upper limit of the calibration range of the instrument established by the initial calibration (ICAL). 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. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J7 Surrogate recovery cannot be used for control limit evaluation due to dilution. P RPD between the primary and confirmatory analysis exceeded 40%. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 07:37 30 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 30 of 33 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: EHC, Inc.L1642492 08/16/23 07:37 31 of 33 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: EHC, Inc.L1642492 08/16/23 08:13 31 of 33