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HomeMy WebLinkAboutMO-28858_48068_CA_LTRRPT_20230222 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC www.excelengr.com LIST OF TABLES TABLE 1 – LIQUID LEVEL DATA TABLE 2A – SOIL SUMMARY DATA (LSA) TABLE 2B – SOIL SUMMARY DATA (RAR) TABLE 3 – GROUNDWATER SUMMARY DATA TABLE 4 – FIELD MEASUREMENTS OF GROUNDWATER SAMPLES Table 1 - Liquid Level DataSam's Mart 749810 University City Boulevard, Charlotte, North CarolinaNCDEQ Incident 48068Excel Project No. 2021126WELL NUMBERDATE INSTALLEDWELL DEPTH (ft)SCREEN INTERVAL (ft)TOC (ft)DATE MEASUREDDTW (ft) WTE (ft)MW-130-Nov-21 15 5-15 100.00 -- NM --MW-230-Jun-22 19 9-19 102.38 -- NM --MW-325-Jul-22 24 14-24 99.74 -- NM --MW-45-Aug-22 22 12-22 99.83 -- NM --MW-530-Jan-23 22 17-22 97.53 31-Jan-23 7.45 90.08VW-130-Jun-22 35 30-35 99.93 -- NM --NOTES:Data provided in feet unless otherwise notedDTW - Depth to WaterWTE - Water Table Elevation TOC elevation for MW-1 set to datum of 100' Table 2A - Soil Summary Data - LSASam's Mart 749810 University City Boulevard, Charlotte, North CarolinaNCDEQ Incident 48068Excel Project No. 20211265 ft10 ftDATE SAMPLEDPID READING7921,957------EPH C9 - C18 Aliphatics< 2.61 3.14 J -- -- --EPH C19 - C36 Aliphatics2.74 B J 2.83 B J -- 31,000810,000EPH C11 - C22 Aromatics3.2 B J 2.97 B J -- -- --VPH C5 - C8 Aliphatics3.52 J 6.19 B J68 93924,528VPH C9 - C12 Aliphatics< 2.36 < 3.09 -- -- --VPH C9 - C10 Aromatics2.78 J 4.55 J -- -- --TOTAL C9 - C18 AliphaticsBDL 3.14 J540 1,50040,000TOTAL C9 - C22 Aromatics5.98 J 7.52 J31 46912,264BENZENE0.00569 J0.0013 J0.005618164TOLUENE< 0.0147 < 0.002424.31,20032,000ETHYLBENZENE0.00841 J 0.00274 J4.91,56040,000XYLENES0.0394 J 0.01444.63,12981,760MTBE< 0.00396 0.0510.0913503,100NAPHTHALENE< 0.0551 0.0145 J0.163138,176ISOPROPYLBENZENE0.01 B J 0.00218 B J1.71,56440,880n-PROPYLBENZENE0.0117 J 0.00576 J1.762616,3501,2,4-TRIMETHYLBENZENE0.0931 0.03988.578220,4401,3,5-TRIMETHYLBENZENE0.028 J 0.01428.578220,440NAPHTHALENE< 0.0101 < 0.01060.163138,176PYRENE< 0.0079 < 0.0081927046912,2642-METHYLNAPHTHALENE0.00641 J < 0.005463.6631,635NOTES:Data in mg/kgMADEP - Massachussetts Dept. of Environmental ProtectionFBGL - Feet Below Grade LevelEPH - Extractable Petroleum HydrocarbonsVOC - Volatile Organic CompoundVPH - Volatile Petroleum HydrocarbonsSVOC - Semi-Volatile Organic CompoundBold data represents constituents above Soil-to-Water MSCCs (Maximum Soil Contaminant Concentrations)Highlighted data represent constituents above Residential Soil Cleanup Levels Italicized data represent constituents above Industrial / Commercial Soil Cleanup LevelsJ - Reported value is an estimateB - The same analyte was found in the associated blankResidential Soil Cleanup LevelsIndustrial / Commercial Soil Cleanup Levels30-Nov-21SVOCsMADEPVOCsSAMPLE LOCATIONSoil-to-Water MSCCsMW-1 5 ft10 ft5 ft10 ft5 ft10 ft5 ft10 ft5 ft10 ftDATE SAMPLEDPID READING456.0 1,8900.00.00.00.30.00.01,211 1,418--TPH GRO2.24 B J816 Q< 0.854 < 0.788 < 0.821 < 0.952 < 0.746 < 0.773 4.8629350TPH DRO< 0.873104< 0.983 < 0.932 < 0.960 < 1.04 < 0.9 < 0.927 < 8.815.6100NOTES:Data in mg/kg Bold data represents constituents above NCDEQ Action LevelsFBGL - Feet Below Grade Level B- Same analyte is found in associated blankTPH - Total Petroleum Hydrocarbons J- ID of analyte is acceptable, reported value is estimateGRO - Gasoline Range Organics Q - Sample analyzed past holding timeDRO - Diesel Range OrganicsSAMPLE LOCATIONNCDEQ Action LevelsTable 2B - Soil Summary Data - TPH GRO & DRO9810 University City Boulevard, Charlotte, North CarolinaNCDEQ Incident 48068 Excel Project 2021126Sam's Mart 7428-Jun-2230-Jun-225-Aug-22VW-1MW-2MW-3MW-4MW-530-Jan-23 Table 3 - Groundwater Summary DataSam's Mart 749810 University City Boulevard, Charlotte, North CarolinaNCDEQ Incident 48068 Excel Project No. 2021126SAMPLE LOCATIONMW-2 MW-3 MW-4 MW-5 VW-1DATE SAMPLED2-Dec-21 9-Aug-22 9-Aug-22 9-Aug-22 9-Aug-22 31-Jan-23 25-Jul-22EPH C9 - C18 Aliphatics58.7 J < 33.3 < 33.3 < 33.3 < 33.3 157 < 33.3 -- --EPH C19 - C36 Aliphatics110 B J 86.8 J < 33.3 < 33.3 33.8 J 252 118 B10,000 --EPH C11 - C22 Aromatics611 406 < 33.3 34.5 J < 33.3 674 35.0 BJ -- --VPH C5 - C8 Aliphatics44,600 46,400< 33.315,500< 33.33,020262 B400 --VPH C9 - C12 Aliphatics35,300 21,500 < 33.3 < 833 < 33.3 9,320 33.9 BJ -- --VPH C9 - C10 Aromatics6,920 6,800 < 33.3 < 833 < 33.3 8,480 <33.3 -- --TOTAL C9 - C18 Aliphatics35,358.7 21,500BDL BDL BDL9,47733.9700 --TOTAL C9 - C22 Aromatics7,531 7,206BDL 34.5 J BDL9,15435200 --BENZENE 10,300 12,700< 0.094113.6 J< 0.094110.7 19.4 1 5,000TOLUENE 8,330 5,400< 0.278 < 6.95 < 0.278 <13.9 1.17600 260,000ETHYLBENZENE 3,870 3,050< 0.137 < 3.43 < 0.1377050.174 J600 84,500TOTAL XYLENES 13,670 11,900< 0.604 < 15.05 < 0.6042,2811.257 J500 85,500MTBE 14,500 23,3000.332 J30,200< 0.1011,230 331 20 20,000NAPHTHALENE 525 512 J< 1 < 25 < 1175 J< 16 6,000N-PROPYLBENZENE556302< 0.0993 < 2.48 < 0.0993433< 0.099370 30,0001,2,4-TRIMETHYLBENZENE2,870 2,330< 0.322 < 8.05 < 0.3222,720< 0.322400 28,5001,3,5-TRIMETHYLBENZENE795605< 0.104 < 2.60 < 0.104740< 0.104400 25,000DI-ISOPROPYL ETHER236472< 0.105827< 0.10572.711.370 70,000sec-BUTYLBENZENE21.3 < 25.0 < 0.125 < 3.13 < 0.125 29.8 J < 0.12570 8,500n-BUTYLBENZENE20.1 < 31.4 < 0.157 < 3.93 < 0.157 43.1 J < 0.15770 6,9002-BUTANONE (MEK)54.7 J < 238 < 1.19 < 29.8 < 1.19 < 59.5 < 1.194,000 4,000,000STYRENE44.8 51.3 J < 0.118 < 2.95 < 0.118 < 5.9 < 0.11870 70,000ISOPROPYLBENZENE199122 J< 0.105 7.66 J < 0.1051040.147 J70 25,000p-ISOPROPYLTOLUENE9.0 J32.1 J< 0.120 < 3 < 0.120 13.6 J < 0.12025 11,700ETHYLENE DIBROMIDE (EDB) by 504.1< 0.00547 J4 NA < 0.00547 < 0.00547 < 0.00547 <0.00541 < 0.00547 J40.02 50t-AMYL ALCOHOL (TAA)NA5,440 J< 4.904,270< 4.90 < 245 33.8 J40 40,000TERT-BUTYL ALCOHOL (TBA)NA< 812 < 4.0629,200< 4.06 < 203 58.6 10 10,000TERT-AMYL METHYL ETHER (TAME)NA1,400< 0.195698< 0.195 37.6 J17128 128,000NAPHTHALENE2542140.906 J < 0.159 < 0.1591080.267 J66,000PHENOL3735.2< 4.33 < 4.33 < 4.33<4.33< 4.3330 30,0002,4-DIMETHYLPHENOL121< 0.0636 < 0.0636 < 0.0636 < 0.0636 <0.0636 < 0.0636100 100,000DIETHYL PHTHALATE2.26 J 0.411 J < 0.287 < 0.287 0.376 J <0.287 < 0.2876,000 --PHENANTHRENE0.165 J < 0.112 < 0.112 0.117 J < 0.112 0.457 J 0.143 J200 550DI-N-BUTYL PHTHALATE< 0.453 < 0.453 < 0.453 < 0.453 < 0.453 <0.453 0.729 J700 --MetalsLEAD95.13.12 J 3.41 J27.7 J< 2.9921.27.8915 15,000NOTES:Data in ug/lMTBE - Methyl Tert Butyl EtherMADEP - Massachusetts Dept. of Environmental Protection J - Reported value is an estimateEPH - Extractable Petroleum Hydrocarbons J4- batch QC outside established QC range for accuracyVPH - Volatile Petroleum Hydrocarbons B - The same analyte was found in the associated blankVOC - Volatile Organic Compound NA - Not AnalyzedSVOC - Semi-Volatile Organic Compound BDL - Below Detect Level Bold data represents constituents above NCAC 2L Standards Add'tl Results 8/9/22 Sampling: MW-3 - ETBE 6.72 J ug/l Highlighted data represent constituents above GCL Standards VOCsMADEPSVOCsNCAC 2L GCLMW-1 Electrical Conductivity ORP (µS/cm) MW-1 MW-2 MW-3 MW-4 MW-5 5.78 0.556 226 12.08 18.57 VW-1 Notes:SU Standard units µS/cm Microsiemens per centimeter ppm Parts per million 0C Degrees Celsius NS Not sampled, (Dry, Not Located, Destroyed, etc…) MW Monitoring Well 1/31/23 Not Sampled Not Sampled Not Sampled Not Sampled Not Sampled TABLE 4 FIELD MEASUREMENTS OF THE GROUNDWATER SAMPLES Sam's Mart No. 74 9810 University City Blvd, Charlotte, North Carolina Excel Project No. 2021126 Well Identification Sampling Date pH (su) Temperature (0C) Disolved Oxygen (ppm) EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC www.excelengr.com LIST OF FIGURES FIGURE 1 – SITE VICINITY MAP FIGURE 2 – SITE PLAN FIGURE 3 – GROUNDWATER CONTOUR MAP FIGURE 4 – GROUNDWATER CONSTITUENTS MAP FIGURE 5 – BENZENE GW CONSTITUENTS MAP FIGURE 6 – MTBE GW CONSTITUENTS MAP FIGURE 7 – SOIL CONSTITUENTS MAP EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC 625 HUNTSMAN COURT GASTONIA, NC 28054 Figure 1 - Topographic Map Excel No. 2021126  N Source: USGS Harrisburg 2016 -- 40 0 ---40 GRAPHIC BAR SCALE 1" = 40' -- 0 80 120 II 11 II 11 II 11 ii ii II ii II 11 1u1 s LEGEND Property Line (Approximate) Roadway Centerline (Approximate) Approximate UST Locations Dispenser Pump Locations Monitor Well Location fi Hart & Hickman Temp Monitoring Well 'tl&HTMW-# "@... Light Pole LP +- NOTES Product Lines Landscaping / Vegetation Structure Direction Arrow Map not exact for sampling location references only Map adapted from Hart & Hickman Site Plan dated 7-9-2021., titled NCDOT Parcel 25. Structure locations are approximate UST -Underground Storage Tank Excel CYv1l & Environmental Associates,, PLLC 625 HUNTSMAN COURT, GASTONIA, NC 28054 PREPARED FOR: SAM'S MART, INC PHONE : (704) 853-0800 MAP TITLE: PROJECT NO. : 2021126 SAM'S MART NO. 74 9810 & 9816 UNIVERSITY CITY BOULEVARD-CHARLOTTE NC FIGURE 2 -- SITE PLAN LETTER REPORT DRAWN BY : BJPJ APPROX. SCALE : DATE : 02/11/2022 REVSD BY : ACL 1" = 40' DATE: 2/21/2023 -- BWN VESTMENTS LLC �PB24167PG611 87.4' & 40 0 ---40 GRAPHIC BAR SCALE 1" = 40' 80 ---=--=--=--=--=---=---=---=---=---=--=-=---=---=---=-7----------"' 0 120 I '- ___ j ____ _) -- II 11 II 11 II 11 II 11 II 11 II 11 1u1 s LEGEND Property Line (Approximate) Roadway Centerline (Approximate) Approximate UST Locations Dispenser Pump Locations Monitor Well Location Hart & Hickman Temp Monitoring Well Approximate water table contour [80.68'] Water Table Elevation "@... Light Pole LP NOTES Product Lines Landscaping / Vegetation Structure Direction Arrow Map prepared from data collected on 8/9/22 MW-5 not used in creation of coutours Map not exact for sampling location references only Map adapted from Hart & Hickman Site Plan dated 7-9-2021., titled NCDOT Parcel 25. Structure locations are approximate UST -Underground Storage Tank Excel CYv1l & Environmental Associates,, PLLC 625 HUNTSMAN COURT, GASTONIA, NC 28054 PHONE : (704) 853-0800 PREPARED FOR: SAM'S MART, INC SAM'S MART NO. 74 9810 &9816 UNIVERSITY CITY BOULEVARD-CHARLOTTE NC MAP TITLE: FIGURE 3 --GROUNDWATER COUNTOUR MAPLETTER REPORT PROJECT NO. : DRAWN BY: BJPJ APPROX. SCALE : DATE: 02/11/2022 2021126 REVSD BY : ACL 1" = 40' DATE: 2/21/2023 < 0.137 < 0.604 < 0.101 < 1 / BWN INVESTMEN ___ - � _,, PB 24167 PG 611 12,700 5,400 3,050 1.257 J 40 0 ---40 GRAPHIC BAR SCALE 1" = 40' 80 ---=--=--=--=--=---=---=---=---=---=--=-=---=---=---=-7----------"' 0 0 120 I '- ___ j ____ _) II 11 II 11 II 11 II 11 II 11 II 11 1u1 LEGEND Property Line (Approximate) Roadway Centerline (Approximate) Approximate UST Locations Dispenser Pump Locations Monitor Well Location fi Hart & Hickman Temp Monitoring Well +l&HTMW-# '@.. Light Pole LP Product Lines Landscaping / Vegetation Structure NOTES Map not exact for sampling location references only Map adapted from Hart & Hickman Site Plan dated 7-9-2021., titled NCDOT Parcel 25. Structure locations are approximate UST -Underground Storage Tank Data provided in ug/I Data from samples collected on 7-25 & 8-9-2022. Data from MW-5 from samples collected on 1-31-2023. Data in orange exceeds NCDEQ GCLs Benzene Toluene Ethyl benzene Total Xylenes Constituents Shown MTBE Napthalene C9 -C18 Aliphatics C9 -C22 Aromatics Excel CYv1l & Environmental Associates,, PLLC 625 HUNTSMAN COURT, GASTONIA, NC 28054 PHONE : (704) 853-0800 PREPARED FOR: SAM'S MART, INC SAM'S MART NO. 74 MAP TITLE: PROJECT NO. : 2021126 9810 &9816 UNIVERSITY CITY BOULEVARD-CHARLOTTE NC FIGURE 4 --GROUNDWATER CONSITUENTS MAPLETTER REPORT DRAWN BY : BJPJ APPROX. SCALE : DATE : 02/11/2022 REVSD BY : ACL 1" = 40' DATE: 2/21/2023 40 0 40 GRAPHIC BAR SCALE 1" = 40' --=---=----=---=---=---=---=---=--=--=--=--=---=---=--=--=--=--=--=-=-7--------"---, ---- ---=------ 0 0 80 120 I ' ___ _j ____ _) --- II 11 II 11 II 11 II 11 II 11 II 11 LJI LEGEND L__J Property Line (Approximate) Roadway Centerline (Approximate) Approximate UST Locations Dispenser Pump Locations Monitor Well Location _)B Hart & Hickman Temp Monitoring Well +i&�TMW-# '@... Light Pole LP - NOTES Product Lines Landscaping / Vegetation Structure Direction Arrow Benzene Constituent of concern Benzene lsoconcentration Line Map not exact for sampling location & for reference only. Map adapted from Hart & Hickman Site Plan Site Plan dated 7-9-2021., titled NCDOT Parcel 25. Data provided in ug/I Data from samples collected on 7/25 & 8/9/2022. Data from MW-5 from samples collected on 1-31-2023. Data in orange exceeds NCDEQ GCLs Structure locations are approximate UST -Underground Storage Tank Excel Civil & Environmental Associate� PLLC 625 HUNTSMAN COURT, GASTONIA, NC 28054 PHONE: (704) 853-0800 PREPARED FOR: SAM'S MART, INC. SAM'S MART NO. 74 9810& 9816 UNIVERSITY CITY BOULEVARD-CHARLOTTE NC MAP TITLE: FIGURE 5 --BENZENE CONSTITUENTS LETTER REPORT PROJECT NO. : DRAWN BY: BJPJ APPROX. SCALE : DATE: 02/11/2022 2021126 REVSD BY : ACL 1" = 40' DATE: 2/21/2023 40 0 --- --:;...------ 40 GRAPHIC BAR SCALE 1" = 40' -- 80 ---=--=--=--=--=---=---=---=---=---=--=-=---=---=---=-7----------"' --------- 0 120 I '- ___ j ____ _) -- -- 0 II 11 II 11 II 11 II 11 II 11 II 11 1u1 LEGEND Property Line (Approximate) s Roadway Centerline (Approximate) Approximate UST Locations Dispenser Pump Locations Monitor Well Location � Hart & Hickman Temp Monitoring Well f'.i&HTMW-# '@._ Light Pole LP oO � 20,000 NOTES Product Lines Landscaping / Vegetation Structure Direction Arrow MTBE Constituent of concern Map not exact for sampling location references only Map adapted from Hart & Hickman Site Plan dated 7-9-2021., titled NCDOT Parcel 25. Structure locations are approximate UST - Underground Storage Tank Data provided in ug/I Data from samples collected on 7/25 & 8/9/2022. Data from MW-5 from samples collected on 1/31/2023. Data in orange exceeds NCDEQ GCLs lsoconcentration Line Dashed where inferred Excel CYv1l & Environmental Associates,, PLLC 625 HUNTSMAN COURT, GASTONIA, NC 28054 PHONE : (704) 853-0800 PREPARED FOR: SAM'S MART, INC SAM'S MART NO. 74 9810 &9816 UNIVERSITY CITY BOULEVARD-CHARLOTTE NC MAP TITLE: FIGURE 6 -- MTBE CONSTITUENTS MAP LETTER REPORT PROJECT NO. : DRAWN BY: BJPJ APPROX. SCALE : DATE: 02/11/2022 2021126 REVSD BY : ACL 1" = 40' DATE: 2/21/2023 EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC www.excelengr.com LIST OF APPENDICES APPENDIX A – MONITORING WELL CONSTRUCTION FORMS APPENDIX B – LABORATORY REPORTS & CHAIN OF CUSTODY FORM(S) EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC www.excelengr.com APPENDIX A MONITORING WELL CONSTRUCTION FORMS EXCEL CIVIL & ENVIRONMENTAL ASSOCIATES, PLLC www.excelengr.com APPENDIX B LABORATORY REPORTS & CHAIN OF CUSTODY FORM(S) ANALYTICAL REPORT February 13, 2023 Excel Civil & Environmental Associates Sample Delivery Group:L1582427 Samples Received:02/04/2023 Project Number:2021126 Description:Sam's Mart 74 Report To:Aaron Long 625 Huntsman Court Gastonia, NC 28054 Entire Report Reviewed By: February 13, 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: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 1 of 34 February 13, 2023 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 1 of 34 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 MW5 5FT L1582427-01 5 MW5 10FT L1582427-02 6 MW5 L1582427-03 7 TRIP BLANK L1582427-04 11 Qc: Quality Control Summary 13 Total Solids by Method 2540 G-2011 13 Metals (ICP) by Method 6010D 14 Volatile Petroleum Hydrocarbons by Method MADEPV 15 Volatile Organic Compounds (GC) by Method 8015C 16 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 18 EDB / DBCP by Method 504.1 23 Semi-Volatile Organic Compounds (GC) by Method 8015C 24 TPH by Method MADEPE 25 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 26 Gl: Glossary of Terms 31 Al: Accreditations & Locations 32 Sc: Sample Chain of Custody 33 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 2 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 2 of 34 SAMPLE SUMMARY Collected by Collected date/time Received date/time MW5 5FT L1582427-01 Solid Justin Espana 01/30/23 13:50 02/04/23 10:20 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2000904 1 02/08/23 09:48 02/08/23 09:54 CMK Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG2004757 25 02/06/23 11:58 02/13/23 02:10 ACG Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG2001268 10 02/08/23 10:41 02/09/23 01:51 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time MW5 10FT L1582427-02 Solid Justin Espana 01/30/23 14:00 02/04/23 10:20 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2000904 1 02/08/23 09:48 02/08/23 09:54 CMK Mt. Juliet, TN Volatile Organic Compounds (GC) by Method 8015C WG2003118 1000 02/06/23 11:58 02/10/23 04:19 DWR Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015C WG2001268 1 02/08/23 10:41 02/08/23 21:43 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time MW5 L1582427-03 GW Justin Espana 01/30/23 14:05 02/04/23 10:20 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Metals (ICP) by Method 6010D WG2001882 1 02/08/23 11:15 02/08/23 14:35 ZSA Mt. Juliet, TN Volatile Petroleum Hydrocarbons by Method MADEPV WG2001163 50 02/07/23 12:43 02/07/23 12:43 ADM Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG2001664 50 02/07/23 21:00 02/07/23 21:00 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG2003348 50 02/09/23 15:35 02/09/23 15:35 JAH Mt. Juliet, TN EDB / DBCP by Method 504.1 WG2002929 1.01 02/09/23 12:40 02/09/23 18:30 KKS Mt. Juliet, TN TPH by Method MADEPE WG2002247 3 02/08/23 05:15 02/09/23 16:17 DMG Mt. Juliet, TN TPH by Method MADEPE WG2002247 3 02/08/23 05:15 02/09/23 19:44 DMG Mt. Juliet, TN Semi Volatile Organic Compounds (GC/MS) by Method 625.1 WG2000359 1 02/06/23 06:31 02/07/23 10:40 DSH Mt. Juliet, TN Collected by Collected date/time Received date/time TRIP BLANK L1582427-04 GW Justin Espana 01/30/23 00:00 02/04/23 10:20 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG2001664 1 02/07/23 17:14 02/07/23 17:14 ACG Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 WG2003348 1 02/09/23 15:12 02/09/23 15:12 JAH Mt. Juliet, TN 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 3 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 3 of 34 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 Sample Delivery Group (SDG) Narrative pH outside of method requirement. Lab Sample ID Project Sample ID Method L1582427-03 MW5 MADEPV 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 4 of 34 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 4 of 34 SAMPLE RESULTS - 01 L1582427 MW5 5FT Collected date/time: 01/30/23 13:50 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 87.4 1 02/08/2023 09:54 WG2000904 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 4860 B 700 3220 25 02/13/2023 02:10 WG2004757 (S) a,a,a-Trifluorotoluene(FID)96.9 77.0-120 02/13/2023 02:10 WG2004757 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction U J3 J5 8800 45800 10 02/09/2023 01:51 WG2001268 (S) o-Terphenyl 62.8 18.0-148 02/09/2023 01:51 WG2001268 Sample Narrative: L1582427-01 WG2001268: Cannot run at lower dilution due to viscosity of extract 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 5 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 5 of 34 SAMPLE RESULTS - 02 L1582427 MW5 10FT Collected date/time: 01/30/23 14:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 80.1 1 02/08/2023 09:54 WG2000904 Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) Low Fraction 293000 B 32500 150000 1000 02/10/2023 04:19 WG2003118 (S) a,a,a-Trifluorotoluene(FID)93.0 77.0-120 02/10/2023 04:19 WG2003118 Semi-Volatile Organic Compounds (GC) by Method 8015C Result (dry)Qualifier MDL (dry)RDL (dry)Dilution Analysis Batch Analyte ug/kg ug/kg ug/kg date / time TPH (GC/FID) High Fraction 15600 960 4990 1 02/08/2023 21:43 WG2001268 (S) o-Terphenyl 58.7 18.0-148 02/08/2023 21:43 WG2001268 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 6 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 6 of 34 SAMPLE RESULTS - 03 L1582427 MW5 Collected date/time: 01/30/23 14:05 Metals (ICP) by Method 6010D Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Lead 21.2 2.99 6.00 1 02/08/2023 14:35 WG2001882 Volatile Petroleum Hydrocarbons by Method MADEPV Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Unadjusted C5-C8 Aliphatics 3020 J 1670 5000 50 02/07/2023 12:43 WG2001163 Unadjusted C9-C12 Aliphatics 9320 1670 5000 50 02/07/2023 12:43 WG2001163 Unadjusted C9-C10 Aromatics 8480 1670 5000 50 02/07/2023 12:43 WG2001163 Total VPH 20800 1670 5000 50 02/07/2023 12:43 WG2001163 (S) 2,5-Dibromotoluene(FID)93.3 70.0-130 02/07/2023 12:43 WG2001163 (S) 2,5-Dibromotoluene(PID)88.8 70.0-130 02/07/2023 12:43 WG2001163 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 565 2500 50 02/07/2023 21:00 WG2001664 Acrolein U C4 J3 127 2500 50 02/07/2023 21:00 WG2001664 Acrylonitrile U 33.6 500 50 02/07/2023 21:00 WG2001664 Benzene 10.7 J 4.71 50.0 50 02/07/2023 21:00 WG2001664 Bromobenzene U 5.90 50.0 50 02/07/2023 21:00 WG2001664 Bromodichloromethane U 6.80 50.0 50 02/07/2023 21:00 WG2001664 Bromoform U 6.45 50.0 50 02/07/2023 21:00 WG2001664 Bromomethane U 30.3 250 50 02/07/2023 21:00 WG2001664 n-Butylbenzene 43.1 J 7.85 50.0 50 02/07/2023 21:00 WG2001664 sec-Butylbenzene 29.8 J 6.25 50.0 50 02/07/2023 21:00 WG2001664 tert-Butylbenzene U 6.35 50.0 50 02/07/2023 21:00 WG2001664 Carbon tetrachloride U 6.40 50.0 50 02/07/2023 21:00 WG2001664 Chlorobenzene U 5.80 50.0 50 02/07/2023 21:00 WG2001664 Chlorodibromomethane U 7.00 50.0 50 02/07/2023 21:00 WG2001664 Chloroethane U 9.60 250 50 02/07/2023 21:00 WG2001664 Chloroform U 5.55 250 50 02/07/2023 21:00 WG2001664 Chloromethane U 48.0 125 50 02/07/2023 21:00 WG2001664 2-Chlorotoluene U 5.30 50.0 50 02/07/2023 21:00 WG2001664 4-Chlorotoluene U 5.70 50.0 50 02/07/2023 21:00 WG2001664 1,2-Dibromo-3-Chloropropane U 13.8 250 50 02/07/2023 21:00 WG2001664 1,2-Dibromoethane U 6.30 50.0 50 02/07/2023 21:00 WG2001664 Dibromomethane U 6.10 50.0 50 02/07/2023 21:00 WG2001664 1,2-Dichlorobenzene U 5.35 50.0 50 02/07/2023 21:00 WG2001664 1,3-Dichlorobenzene U 5.50 50.0 50 02/07/2023 21:00 WG2001664 1,4-Dichlorobenzene U 6.00 50.0 50 02/07/2023 21:00 WG2001664 Dichlorodifluoromethane U 18.7 250 50 02/07/2023 21:00 WG2001664 1,1-Dichloroethane U 5.00 50.0 50 02/07/2023 21:00 WG2001664 1,2-Dichloroethane U 4.09 50.0 50 02/07/2023 21:00 WG2001664 1,1-Dichloroethene U 9.40 50.0 50 02/07/2023 21:00 WG2001664 cis-1,2-Dichloroethene U 6.30 50.0 50 02/07/2023 21:00 WG2001664 trans-1,2-Dichloroethene U 7.45 50.0 50 02/07/2023 21:00 WG2001664 1,2-Dichloropropane U 7.45 50.0 50 02/07/2023 21:00 WG2001664 1,1-Dichloropropene U 7.10 50.0 50 02/07/2023 21:00 WG2001664 1,3-Dichloropropane U 5.50 50.0 50 02/07/2023 21:00 WG2001664 2,2-Dichloropropane U 8.05 50.0 50 02/07/2023 21:00 WG2001664 Di-isopropyl ether 72.7 5.25 50.0 50 02/07/2023 21:00 WG2001664 Ethylbenzene 705 6.85 50.0 50 02/07/2023 21:00 WG2001664 Hexachloro-1,3-butadiene U 16.9 50.0 50 02/07/2023 21:00 WG2001664 Isopropylbenzene 104 5.25 50.0 50 02/07/2023 21:00 WG2001664 p-Isopropyltoluene 13.6 J 6.00 50.0 50 02/07/2023 21:00 WG2001664 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 7 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 7 of 34 SAMPLE RESULTS - 03 L1582427 MW5 Collected date/time: 01/30/23 14:05 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time 2-Butanone (MEK)U 59.5 500 50 02/07/2023 21:00 WG2001664 Methylene Chloride U 21.5 250 50 02/07/2023 21:00 WG2001664 4-Methyl-2-pentanone (MIBK)U 23.9 500 50 02/07/2023 21:00 WG2001664 Methyl tert-butyl ether 1230 5.05 50.0 50 02/07/2023 21:00 WG2001664 Naphthalene 175 J 50.0 250 50 02/07/2023 21:00 WG2001664 n-Propylbenzene 433 4.97 50.0 50 02/07/2023 21:00 WG2001664 Styrene U 5.90 50.0 50 02/07/2023 21:00 WG2001664 1,1,1,2-Tetrachloroethane U 7.35 50.0 50 02/07/2023 21:00 WG2001664 1,1,2,2-Tetrachloroethane U 6.65 50.0 50 02/07/2023 21:00 WG2001664 Tetrachloroethene U 15.0 50.0 50 02/07/2023 21:00 WG2001664 Toluene U 13.9 50.0 50 02/07/2023 21:00 WG2001664 1,2,3-Trichlorobenzene U 11.5 50.0 50 02/07/2023 21:00 WG2001664 1,2,4-Trichlorobenzene U 24.1 50.0 50 02/07/2023 21:00 WG2001664 1,1,1-Trichloroethane U 7.45 50.0 50 02/07/2023 21:00 WG2001664 1,1,2-Trichloroethane U 7.90 50.0 50 02/07/2023 21:00 WG2001664 Trichloroethene U 9.50 50.0 50 02/07/2023 21:00 WG2001664 Trichlorofluoromethane U 8.00 250 50 02/07/2023 21:00 WG2001664 1,2,3-Trichloropropane U 11.9 125 50 02/07/2023 21:00 WG2001664 1,2,4-Trimethylbenzene 2720 16.1 50.0 50 02/07/2023 21:00 WG2001664 1,3,5-Trimethylbenzene 740 5.20 50.0 50 02/07/2023 21:00 WG2001664 Vinyl chloride U 11.7 50.0 50 02/07/2023 21:00 WG2001664 o-Xylene 131 J4 8.70 50.0 50 02/07/2023 21:00 WG2001664 m&p-Xylenes 2150 21.5 100 50 02/07/2023 21:00 WG2001664 Ethanol U 2100 5000 50 02/09/2023 15:35 WG2003348 Ethyl tert-butyl ether U 5.05 50.0 50 02/07/2023 21:00 WG2001664 t-Amyl Alcohol U 245 2500 50 02/07/2023 21:00 WG2001664 tert-Butyl alcohol U 203 250 50 02/09/2023 15:35 WG2003348 tert-Amyl Methyl Ether 37.6 J 9.75 50.0 50 02/07/2023 21:00 WG2001664 (S) Toluene-d8 90.5 80.0-120 02/07/2023 21:00 WG2001664 (S) Toluene-d8 98.6 80.0-120 02/09/2023 15:35 WG2003348 (S) 4-Bromofluorobenzene 84.3 77.0-126 02/07/2023 21:00 WG2001664 (S) 4-Bromofluorobenzene 98.9 77.0-126 02/09/2023 15:35 WG2003348 (S) 1,2-Dichloroethane-d4 110 70.0-130 02/07/2023 21:00 WG2001664 (S) 1,2-Dichloroethane-d4 92.4 70.0-130 02/09/2023 15:35 WG2003348 EDB / DBCP by Method 504.1 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Ethylene Dibromide U 0.00541 0.0202 1.01 02/09/2023 18:30 WG2002929 TPH by Method MADEPE Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Unadjusted C9-C18 Aliphatics 157 J 99.9 300 3 02/09/2023 16:17 WG2002247 Unadjusted C19-C36 Aliphatics 252 B J 99.9 300 3 02/09/2023 16:17 WG2002247 Unadjusted C11-C22 Aromatics 674 99.9 300 3 02/09/2023 19:44 WG2002247 Unadjusted Total Petroleum Hydrocarbons 1080 99.9 300 3 02/09/2023 19:44 WG2002247 (S) o-Terphenyl 67.0 40.0-140 02/09/2023 19:44 WG2002247 (S) 1-Chloro-octadecane 63.5 40.0-140 02/09/2023 16:17 WG2002247 (S) 2-Fluorobiphenyl 92.1 40.0-140 02/09/2023 19:44 WG2002247 (S) 2-Bromonaphthalene 89.5 40.0-140 02/09/2023 19:44 WG2002247 Sample Narrative: L1582427-03 WG2002247: Dilution due to matrix impact during extraction procedure 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 8 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 8 of 34 SAMPLE RESULTS - 03 L1582427 MW5 Collected date/time: 01/30/23 14:05 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 0.433 J 0.0886 1.00 1 02/07/2023 10:40 WG2000359 Acenaphthylene U 0.0921 1.00 1 02/07/2023 10:40 WG2000359 Anthracene 0.152 J 0.0804 1.00 1 02/07/2023 10:40 WG2000359 Benzidine U 3.74 10.0 1 02/07/2023 10:40 WG2000359 Benzo(a)anthracene U 0.199 1.00 1 02/07/2023 10:40 WG2000359 Benzo(b)fluoranthene U 0.130 1.00 1 02/07/2023 10:40 WG2000359 Benzo(k)fluoranthene U 0.120 1.00 1 02/07/2023 10:40 WG2000359 Benzo(g,h,i)perylene U 0.121 1.00 1 02/07/2023 10:40 WG2000359 Benzo(a)pyrene U 0.0381 1.00 1 02/07/2023 10:40 WG2000359 Bis(2-chlorethoxy)methane U 0.116 10.0 1 02/07/2023 10:40 WG2000359 Bis(2-chloroethyl)ether U 0.137 10.0 1 02/07/2023 10:40 WG2000359 2,2-Oxybis(1-Chloropropane)U 0.210 10.0 1 02/07/2023 10:40 WG2000359 4-Bromophenyl-phenylether U 0.0877 10.0 1 02/07/2023 10:40 WG2000359 2-Chloronaphthalene U 0.0648 1.00 1 02/07/2023 10:40 WG2000359 4-Chlorophenyl-phenylether U 0.0926 10.0 1 02/07/2023 10:40 WG2000359 Chrysene U 0.130 1.00 1 02/07/2023 10:40 WG2000359 Dibenz(a,h)anthracene U 0.0644 1.00 1 02/07/2023 10:40 WG2000359 3,3-Dichlorobenzidine U 0.212 10.0 1 02/07/2023 10:40 WG2000359 2,4-Dinitrotoluene U 0.0983 10.0 1 02/07/2023 10:40 WG2000359 2,6-Dinitrotoluene U 0.250 10.0 1 02/07/2023 10:40 WG2000359 Fluoranthene U 0.102 1.00 1 02/07/2023 10:40 WG2000359 Fluorene 0.768 J 0.0844 1.00 1 02/07/2023 10:40 WG2000359 Hexachlorobenzene U 0.0755 1.00 1 02/07/2023 10:40 WG2000359 Hexachloro-1,3-butadiene U 0.0968 10.0 1 02/07/2023 10:40 WG2000359 Hexachlorocyclopentadiene U 0.0598 10.0 1 02/07/2023 10:40 WG2000359 Hexachloroethane U 0.127 10.0 1 02/07/2023 10:40 WG2000359 Indeno(1,2,3-cd)pyrene U 0.279 1.00 1 02/07/2023 10:40 WG2000359 Isophorone U 0.143 10.0 1 02/07/2023 10:40 WG2000359 Naphthalene 108 0.159 1.00 1 02/07/2023 10:40 WG2000359 Nitrobenzene U 0.297 10.0 1 02/07/2023 10:40 WG2000359 n-Nitrosodimethylamine U 0.998 10.0 1 02/07/2023 10:40 WG2000359 n-Nitrosodiphenylamine U 2.37 10.0 1 02/07/2023 10:40 WG2000359 n-Nitrosodi-n-propylamine U 0.261 10.0 1 02/07/2023 10:40 WG2000359 Phenanthrene 0.457 J 0.112 1.00 1 02/07/2023 10:40 WG2000359 Benzylbutyl phthalate U 0.765 3.00 1 02/07/2023 10:40 WG2000359 Bis(2-ethylhexyl)phthalate U 0.895 3.00 1 02/07/2023 10:40 WG2000359 Di-n-butyl phthalate U 0.453 3.00 1 02/07/2023 10:40 WG2000359 Diethyl phthalate U 0.287 3.00 1 02/07/2023 10:40 WG2000359 Dimethyl phthalate U 0.260 3.00 1 02/07/2023 10:40 WG2000359 Di-n-octyl phthalate U 0.932 3.00 1 02/07/2023 10:40 WG2000359 Pyrene U 0.107 1.00 1 02/07/2023 10:40 WG2000359 1,2,4-Trichlorobenzene U 0.0698 10.0 1 02/07/2023 10:40 WG2000359 4-Chloro-3-methylphenol U 0.131 10.0 1 02/07/2023 10:40 WG2000359 2-Chlorophenol U 0.133 10.0 1 02/07/2023 10:40 WG2000359 2,4-Dichlorophenol U 0.102 10.0 1 02/07/2023 10:40 WG2000359 2,4-Dimethylphenol U 0.0636 10.0 1 02/07/2023 10:40 WG2000359 4,6-Dinitro-2-methylphenol U 1.12 10.0 1 02/07/2023 10:40 WG2000359 2,4-Dinitrophenol U 5.93 10.0 1 02/07/2023 10:40 WG2000359 2-Nitrophenol U 0.117 10.0 1 02/07/2023 10:40 WG2000359 4-Nitrophenol U 0.143 10.0 1 02/07/2023 10:40 WG2000359 Pentachlorophenol U 0.313 10.0 1 02/07/2023 10:40 WG2000359 Phenol U 4.33 10.0 1 02/07/2023 10:40 WG2000359 2,4,6-Trichlorophenol U 0.100 10.0 1 02/07/2023 10:40 WG2000359 (S) Nitrobenzene-d5 44.2 15.0-314 02/07/2023 10:40 WG2000359 (S) 2-Fluorobiphenyl 71.6 22.0-127 02/07/2023 10:40 WG2000359 (S) p-Terphenyl-d14 70.5 29.0-141 02/07/2023 10:40 WG2000359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 9 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 9 of 34 SAMPLE RESULTS - 03 L1582427 MW5 Collected date/time: 01/30/23 14:05 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 (S) Phenol-d5 14.6 8.00-424 02/07/2023 10:40 WG2000359 (S) 2-Fluorophenol 14.5 10.0-120 02/07/2023 10:40 WG2000359 (S) 2,4,6-Tribromophenol 95.1 10.0-153 02/07/2023 10:40 WG2000359 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 10 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 10 of 34 SAMPLE RESULTS - 04 L1582427 TRIP BLANK Collected date/time: 01/30/23 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Acetone U 11.3 50.0 1 02/07/2023 17:14 WG2001664 Acrolein U C4 J3 2.54 50.0 1 02/07/2023 17:14 WG2001664 Acrylonitrile U 0.671 10.0 1 02/07/2023 17:14 WG2001664 Benzene U 0.0941 1.00 1 02/07/2023 17:14 WG2001664 Bromobenzene U 0.118 1.00 1 02/07/2023 17:14 WG2001664 Bromodichloromethane U 0.136 1.00 1 02/07/2023 17:14 WG2001664 Bromoform U 0.129 1.00 1 02/07/2023 17:14 WG2001664 Bromomethane U 0.605 5.00 1 02/07/2023 17:14 WG2001664 n-Butylbenzene U 0.157 1.00 1 02/07/2023 17:14 WG2001664 sec-Butylbenzene U 0.125 1.00 1 02/07/2023 17:14 WG2001664 tert-Butylbenzene U 0.127 1.00 1 02/07/2023 17:14 WG2001664 Carbon tetrachloride U 0.128 1.00 1 02/07/2023 17:14 WG2001664 Chlorobenzene U 0.116 1.00 1 02/07/2023 17:14 WG2001664 Chlorodibromomethane U 0.140 1.00 1 02/07/2023 17:14 WG2001664 Chloroethane U 0.192 5.00 1 02/07/2023 17:14 WG2001664 Chloroform U 0.111 5.00 1 02/07/2023 17:14 WG2001664 Chloromethane U 0.960 2.50 1 02/07/2023 17:14 WG2001664 2-Chlorotoluene U 0.106 1.00 1 02/07/2023 17:14 WG2001664 4-Chlorotoluene U 0.114 1.00 1 02/07/2023 17:14 WG2001664 1,2-Dibromo-3-Chloropropane U 0.276 5.00 1 02/07/2023 17:14 WG2001664 1,2-Dibromoethane U 0.126 1.00 1 02/07/2023 17:14 WG2001664 Dibromomethane U 0.122 1.00 1 02/07/2023 17:14 WG2001664 1,2-Dichlorobenzene U 0.107 1.00 1 02/07/2023 17:14 WG2001664 1,3-Dichlorobenzene U 0.110 1.00 1 02/07/2023 17:14 WG2001664 1,4-Dichlorobenzene U 0.120 1.00 1 02/07/2023 17:14 WG2001664 Dichlorodifluoromethane U 0.374 5.00 1 02/07/2023 17:14 WG2001664 1,1-Dichloroethane U 0.100 1.00 1 02/07/2023 17:14 WG2001664 1,2-Dichloroethane U 0.0819 1.00 1 02/07/2023 17:14 WG2001664 1,1-Dichloroethene U 0.188 1.00 1 02/07/2023 17:14 WG2001664 cis-1,2-Dichloroethene U 0.126 1.00 1 02/07/2023 17:14 WG2001664 trans-1,2-Dichloroethene U 0.149 1.00 1 02/07/2023 17:14 WG2001664 1,2-Dichloropropane U 0.149 1.00 1 02/07/2023 17:14 WG2001664 1,1-Dichloropropene U 0.142 1.00 1 02/07/2023 17:14 WG2001664 1,3-Dichloropropane U 0.110 1.00 1 02/07/2023 17:14 WG2001664 2,2-Dichloropropane U 0.161 1.00 1 02/07/2023 17:14 WG2001664 Di-isopropyl ether U 0.105 1.00 1 02/07/2023 17:14 WG2001664 Ethylbenzene U 0.137 1.00 1 02/07/2023 17:14 WG2001664 Hexachloro-1,3-butadiene U 0.337 1.00 1 02/07/2023 17:14 WG2001664 Isopropylbenzene U 0.105 1.00 1 02/07/2023 17:14 WG2001664 p-Isopropyltoluene U 0.120 1.00 1 02/07/2023 17:14 WG2001664 2-Butanone (MEK)U 1.19 10.0 1 02/07/2023 17:14 WG2001664 Methylene Chloride U 0.430 5.00 1 02/07/2023 17:14 WG2001664 4-Methyl-2-pentanone (MIBK)U 0.478 10.0 1 02/07/2023 17:14 WG2001664 Methyl tert-butyl ether U 0.101 1.00 1 02/07/2023 17:14 WG2001664 Naphthalene U 1.00 5.00 1 02/07/2023 17:14 WG2001664 n-Propylbenzene U 0.0993 1.00 1 02/07/2023 17:14 WG2001664 Styrene U 0.118 1.00 1 02/07/2023 17:14 WG2001664 1,1,1,2-Tetrachloroethane U 0.147 1.00 1 02/07/2023 17:14 WG2001664 1,1,2,2-Tetrachloroethane U 0.133 1.00 1 02/07/2023 17:14 WG2001664 Tetrachloroethene U 0.300 1.00 1 02/07/2023 17:14 WG2001664 Toluene U 0.278 1.00 1 02/07/2023 17:14 WG2001664 1,2,3-Trichlorobenzene U 0.230 1.00 1 02/07/2023 17:14 WG2001664 1,2,4-Trichlorobenzene U 0.481 1.00 1 02/07/2023 17:14 WG2001664 1,1,1-Trichloroethane U 0.149 1.00 1 02/07/2023 17:14 WG2001664 1,1,2-Trichloroethane U 0.158 1.00 1 02/07/2023 17:14 WG2001664 Trichloroethene U 0.190 1.00 1 02/07/2023 17:14 WG2001664 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 11 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 11 of 34 SAMPLE RESULTS - 04 L1582427 TRIP BLANK Collected date/time: 01/30/23 00:00 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 Result Qualifier MDL RDL Dilution Analysis Batch Analyte ug/l ug/l ug/l date / time Trichlorofluoromethane U 0.160 5.00 1 02/07/2023 17:14 WG2001664 1,2,3-Trichloropropane U 0.237 2.50 1 02/07/2023 17:14 WG2001664 1,2,4-Trimethylbenzene U 0.322 1.00 1 02/07/2023 17:14 WG2001664 1,3,5-Trimethylbenzene U 0.104 1.00 1 02/07/2023 17:14 WG2001664 Vinyl chloride U 0.234 1.00 1 02/07/2023 17:14 WG2001664 o-Xylene U J4 0.174 1.00 1 02/07/2023 17:14 WG2001664 m&p-Xylenes U 0.430 2.00 1 02/07/2023 17:14 WG2001664 Ethanol U 42.0 100 1 02/09/2023 15:12 WG2003348 Ethyl tert-butyl ether U 0.101 1.00 1 02/07/2023 17:14 WG2001664 t-Amyl Alcohol U 4.90 50.0 1 02/07/2023 17:14 WG2001664 tert-Butyl alcohol U 4.06 5.00 1 02/09/2023 15:12 WG2003348 tert-Amyl Methyl Ether U 0.195 1.00 1 02/07/2023 17:14 WG2001664 (S) Toluene-d8 94.4 80.0-120 02/07/2023 17:14 WG2001664 (S) Toluene-d8 101 80.0-120 02/09/2023 15:12 WG2003348 (S) 4-Bromofluorobenzene 82.4 77.0-126 02/07/2023 17:14 WG2001664 (S) 4-Bromofluorobenzene 98.4 77.0-126 02/09/2023 15:12 WG2003348 (S) 1,2-Dichloroethane-d4 108 70.0-130 02/07/2023 17:14 WG2001664 (S) 1,2-Dichloroethane-d4 93.1 70.0-130 02/09/2023 15:12 WG2003348 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 12 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 12 of 34 QUALITY CONTROL SUMMARYWG2000904 Total Solids by Method 2540 G-2011 L1582427-01,02 Method Blank (MB) (MB) R3888931-1 02/08/23 09:54 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1582425-04 Original Sample (OS) • Duplicate (DUP) (OS) L1582425-04 02/08/23 09:54 • (DUP) R3888931-3 02/08/23 09:54 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 82.2 82.1 1 0.116 10 Laboratory Control Sample (LCS) (LCS) R3888931-2 02/08/23 09:54 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: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 13 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 13 of 34 QUALITY CONTROL SUMMARYWG2001882 Metals (ICP) by Method 6010D L1582427-03 Method Blank (MB) (MB) R3888770-1 02/08/23 13:59 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Lead U 2.99 6.00 Laboratory Control Sample (LCS) (LCS) R3888770-2 02/08/23 14:02 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Lead 1000 1080 108 80.0-120 L1581227-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1581227-01 02/08/23 14:05 • (MS) R3888770-4 02/08/23 14:10 • (MSD) R3888770-5 02/08/23 14:13 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 %%%%% Lead 1000 U 1060 1100 106 110 1 75.0-125 3.31 20 L1583104-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1583104-05 02/08/23 14:15 • (MS) R3888770-6 02/08/23 14:18 • (MSD) R3888770-7 02/08/23 14:20 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 %%%%% Lead 1000 U 1100 1090 110 109 1 75.0-125 0.477 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 14 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 14 of 34 QUALITY CONTROL SUMMARYWG2001163 Volatile Petroleum Hydrocarbons by Method MADEPV L1582427-03 Method Blank (MB) (MB) R3888438-3 02/07/23 09:59 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C5-C8 Aliphatics U 33.3 100 Unadjusted C9-C12 Aliphatics U 33.3 100 Unadjusted C9-C10 Aromatics U 33.3 100 Total VPH U 33.3 100 (S) 2,5-Dibromotoluene(FID)85.8 70.0-130 (S) 2,5-Dibromotoluene(PID)83.0 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3888438-1 02/07/23 07:48 • (LCSD) R3888438-2 02/07/23 08:21 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 %%%%% Unadjusted C5-C8 Aliphatics 1200 1100 1130 91.7 94.2 70.0-130 2.69 25 Unadjusted C9-C12 Aliphatics 1400 1430 1460 102 104 70.0-130 2.08 25 Unadjusted C9-C10 Aromatics 200 212 214 106 107 70.0-130 0.939 25 Total VPH 2800 2740 2800 97.9 100 70.0-130 2.17 25 (S) 2,5-Dibromotoluene(FID) 98.2 93.0 70.0-130 (S) 2,5-Dibromotoluene(PID) 96.1 90.0 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 15 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 15 of 34 QUALITY CONTROL SUMMARYWG2003118 Volatile Organic Compounds (GC) by Method 8015C L1582427-02 Method Blank (MB) (MB) R3889845-1 02/09/23 21:53 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg TPH (GC/FID) Low Fraction 752 J 543 2500 (S) a,a,a-Trifluorotoluene(FID)93.9 77.0-120 Laboratory Control Sample (LCS) (LCS) R3889845-2 02/09/23 22:13 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% TPH (GC/FID) Low Fraction 5500 4830 87.8 72.0-127 (S) a,a,a-Trifluorotoluene(FID) 103 77.0-120 L1582287-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1582287-01 02/10/23 03:38 • (MS) R3889845-3 02/10/23 06:02 • (MSD) R3889845-4 02/10/23 06:22 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/kg ug/kg ug/kg ug/kg %%%%% TPH (GC/FID) Low Fraction 550000 233000 838000 742000 110 92.5 100 10.0-151 12.2 28 (S) a,a,a-Trifluorotoluene(FID) 98.6 96.9 77.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 16 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 16 of 34 QUALITY CONTROL SUMMARYWG2004757 Volatile Organic Compounds (GC) by Method 8015C L1582427-01 Method Blank (MB) (MB) R3890040-2 02/13/23 01:49 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg TPH (GC/FID) Low Fraction 590 J 543 2500 (S) a,a,a-Trifluorotoluene(FID)95.6 77.0-120 Laboratory Control Sample (LCS) (LCS) R3890040-1 02/13/23 00:28 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% TPH (GC/FID) Low Fraction 5500 5220 94.9 72.0-127 (S) a,a,a-Trifluorotoluene(FID) 110 77.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 17 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 17 of 34 QUALITY CONTROL SUMMARYWG2001664 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1582427-03,04 Method Blank (MB) (MB) R3889132-5 02/07/23 12:57 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 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 Bromomethane U 0.605 5.00 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 U 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 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 18 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 18 of 34 QUALITY CONTROL SUMMARYWG2001664 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1582427-03,04 Method Blank (MB) (MB) R3889132-5 02/07/23 12:57 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l 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 Methyl tert-butyl ether U 0.101 1.00 Naphthalene U 1.00 5.00 n-Propylbenzene U 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 Ethyl tert-butyl ether U 0.101 1.00 t-Amyl Alcohol U 4.90 50.0 tert-Amyl Methyl Ether U 0.195 1.00 (S) Toluene-d8 91.5 80.0-120 (S) 4-Bromofluorobenzene 86.8 77.0-126 (S) 1,2-Dichloroethane-d4 105 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3889132-1 02/07/23 10:25 • (LCSD) R3889132-2 02/07/23 10:46 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 17.9 18.1 71.6 72.4 19.0-160 1.11 27 Acrolein 25.0 14.0 10.2 56.0 40.8 10.0-160 J3 31.4 26 Acrylonitrile 25.0 22.4 20.2 89.6 80.8 55.0-149 10.3 20 Benzene 5.00 5.08 4.93 102 98.6 70.0-123 3.00 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 19 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 19 of 34 QUALITY CONTROL SUMMARYWG2001664 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1582427-03,04 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3889132-1 02/07/23 10:25 • (LCSD) R3889132-2 02/07/23 10:46 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 %%%%% Bromobenzene 5.00 5.52 4.95 110 99.0 73.0-121 10.9 20 Bromodichloromethane 5.00 5.68 5.66 114 113 75.0-120 0.353 20 Bromoform 5.00 4.63 4.36 92.6 87.2 68.0-132 6.01 20 Bromomethane 5.00 6.24 6.08 125 122 10.0-160 2.60 25 n-Butylbenzene 5.00 4.77 4.50 95.4 90.0 73.0-125 5.83 20 sec-Butylbenzene 5.00 5.09 4.65 102 93.0 75.0-125 9.03 20 tert-Butylbenzene 5.00 4.73 4.44 94.6 88.8 76.0-124 6.32 20 Carbon tetrachloride 5.00 5.43 5.32 109 106 68.0-126 2.05 20 Chlorobenzene 5.00 4.70 4.39 94.0 87.8 80.0-121 6.82 20 Chlorodibromomethane 5.00 4.86 4.50 97.2 90.0 77.0-125 7.69 20 Chloroethane 5.00 6.51 6.34 130 127 47.0-150 2.65 20 Chloroform 5.00 5.83 5.61 117 112 73.0-120 3.85 20 Chloromethane 5.00 5.39 5.19 108 104 41.0-142 3.78 20 2-Chlorotoluene 5.00 5.23 4.78 105 95.6 76.0-123 8.99 20 4-Chlorotoluene 5.00 4.96 4.56 99.2 91.2 75.0-122 8.40 20 1,2-Dibromo-3-Chloropropane 5.00 4.23 3.92 84.6 78.4 58.0-134 7.61 20 1,2-Dibromoethane 5.00 4.75 4.73 95.0 94.6 80.0-122 0.422 20 Dibromomethane 5.00 5.21 5.09 104 102 80.0-120 2.33 20 1,2-Dichlorobenzene 5.00 5.05 4.58 101 91.6 79.0-121 9.76 20 1,3-Dichlorobenzene 5.00 5.28 4.88 106 97.6 79.0-120 7.87 20 1,4-Dichlorobenzene 5.00 5.29 4.87 106 97.4 79.0-120 8.27 20 Dichlorodifluoromethane 5.00 6.36 6.81 127 136 51.0-149 6.83 20 1,1-Dichloroethane 5.00 4.92 4.77 98.4 95.4 70.0-126 3.10 20 1,2-Dichloroethane 5.00 5.74 5.34 115 107 70.0-128 7.22 20 1,1-Dichloroethene 5.00 5.15 4.95 103 99.0 71.0-124 3.96 20 cis-1,2-Dichloroethene 5.00 4.97 4.81 99.4 96.2 73.0-120 3.27 20 trans-1,2-Dichloroethene 5.00 5.12 5.12 102 102 73.0-120 0.000 20 1,2-Dichloropropane 5.00 4.81 4.62 96.2 92.4 77.0-125 4.03 20 1,1-Dichloropropene 5.00 5.01 4.97 100 99.4 74.0-126 0.802 20 1,3-Dichloropropane 5.00 4.78 4.55 95.6 91.0 80.0-120 4.93 20 2,2-Dichloropropane 5.00 6.38 6.30 128 126 58.0-130 1.26 20 Di-isopropyl ether 5.00 4.47 4.33 89.4 86.6 58.0-138 3.18 20 Ethylbenzene 5.00 4.39 4.26 87.8 85.2 79.0-123 3.01 20 Hexachloro-1,3-butadiene 5.00 5.71 5.72 114 114 54.0-138 0.175 20 Isopropylbenzene 5.00 4.14 3.96 82.8 79.2 76.0-127 4.44 20 p-Isopropyltoluene 5.00 4.72 4.45 94.4 89.0 76.0-125 5.89 20 2-Butanone (MEK)25.0 24.8 23.4 99.2 93.6 44.0-160 5.81 20 Methylene Chloride 5.00 5.05 5.24 101 105 67.0-120 3.69 20 4-Methyl-2-pentanone (MIBK)25.0 23.3 21.9 93.2 87.6 68.0-142 6.19 20 Methyl tert-butyl ether 5.00 4.93 4.80 98.6 96.0 68.0-125 2.67 20 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 20 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 20 of 34 QUALITY CONTROL SUMMARYWG2001664 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1582427-03,04 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3889132-1 02/07/23 10:25 • (LCSD) R3889132-2 02/07/23 10:46 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 %%%%% Naphthalene 5.00 3.58 3.55 71.6 71.0 54.0-135 0.842 20 n-Propylbenzene 5.00 4.78 4.56 95.6 91.2 77.0-124 4.71 20 Styrene 5.00 3.95 3.79 79.0 75.8 73.0-130 4.13 20 1,1,1,2-Tetrachloroethane 5.00 4.64 4.29 92.8 85.8 75.0-125 7.84 20 1,1,2,2-Tetrachloroethane 5.00 5.76 5.38 115 108 65.0-130 6.82 20 Tetrachloroethene 5.00 5.10 4.70 102 94.0 72.0-132 8.16 20 Toluene 5.00 4.63 4.43 92.6 88.6 79.0-120 4.42 20 1,2,3-Trichlorobenzene 5.00 4.40 4.23 88.0 84.6 50.0-138 3.94 20 1,2,4-Trichlorobenzene 5.00 4.28 4.07 85.6 81.4 57.0-137 5.03 20 1,1,1-Trichloroethane 5.00 5.93 5.91 119 118 73.0-124 0.338 20 1,1,2-Trichloroethane 5.00 4.85 4.67 97.0 93.4 80.0-120 3.78 20 Trichloroethene 5.00 4.87 4.58 97.4 91.6 78.0-124 6.14 20 Trichlorofluoromethane 5.00 6.33 6.54 127 131 59.0-147 3.26 20 1,2,3-Trichloropropane 5.00 6.01 5.32 120 106 73.0-130 12.2 20 1,2,4-Trimethylbenzene 5.00 4.76 4.43 95.2 88.6 76.0-121 7.18 20 1,3,5-Trimethylbenzene 5.00 4.93 4.54 98.6 90.8 76.0-122 8.24 20 Vinyl chloride 5.00 5.51 5.68 110 114 67.0-131 3.04 20 o-Xylene 5.00 3.96 3.88 79.2 77.6 80.0-122 J4 J4 2.04 20 m&p-Xylenes 10.0 8.99 8.49 89.9 84.9 80.0-122 5.72 20 Ethyl tert-butyl ether 5.00 4.39 4.27 87.8 85.4 63.0-138 2.77 20 tert-Amyl Methyl Ether 5.00 4.44 4.36 88.8 87.2 66.0-125 1.82 20 (S) Toluene-d8 91.4 90.2 80.0-120 (S) 4-Bromofluorobenzene 82.1 81.8 77.0-126 (S) 1,2-Dichloroethane-d4 112 111 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 21 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 21 of 34 QUALITY CONTROL SUMMARYWG2003348 Volatile Organic Compounds (GC/MS) by Method 6200B-1997/6200B-2011 L1582427-03,04 Method Blank (MB) (MB) R3889577-3 02/09/23 12:44 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Ethanol U 42.0 100 tert-Butyl alcohol U 4.06 5.00 (S) Toluene-d8 102 80.0-120 (S) 4-Bromofluorobenzene 98.8 77.0-126 (S) 1,2-Dichloroethane-d4 91.2 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3889577-1 02/09/23 11:37 • (LCSD) R3889577-2 02/09/23 11:59 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 %%%%% ethanol 250 259 266 104 106 10.0-160 2.67 30 tert-Butyl alcohol 25.0 24.2 24.2 96.8 96.8 27.0-160 0.000 30 (S) Toluene-d8 99.4 104 80.0-120 (S) 4-Bromofluorobenzene 98.6 99.2 77.0-126 (S) 1,2-Dichloroethane-d4 89.6 91.2 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 22 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 22 of 34 QUALITY CONTROL SUMMARYWG2002929 EDB / DBCP by Method 504.1 L1582427-03 Method Blank (MB) (MB) R3889601-1 02/09/23 17:32 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Ethylene Dibromide U 0.00536 0.0200 L1582429-09 Original Sample (OS) • Duplicate (DUP) (OS) L1582429-09 02/09/23 18:19 • (DUP) R3889601-3 02/09/23 18:07 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte ug/l ug/l %% Ethylene Dibromide U U 1.06 0.000 20 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3889601-4 02/09/23 20:15 • (LCSD) R3889601-5 02/09/23 22:47 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 %%%%% Ethylene Dibromide 0.250 0.233 0.234 93.2 93.6 70.0-130 0.428 20 L1582429-10 Original Sample (OS) • Matrix Spike (MS) (OS) L1582429-10 02/09/23 17:55 • (MS) R3889601-2 02/09/23 17:44 Spike Amount Original Result MS Result MS Rec.Dilution Rec. Limits MS Qualifier Analyte ug/l ug/l ug/l %% Ethylene Dibromide 0.101 U 0.108 107 1.01 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 23 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 23 of 34 QUALITY CONTROL SUMMARYWG2001268 Semi-Volatile Organic Compounds (GC) by Method 8015C L1582427-01,02 Method Blank (MB) (MB) R3888979-2 02/08/23 18:51 MB Result MB Qualifier MB MDL MB RDL Analyte ug/kg ug/kg ug/kg TPH (GC/FID) High Fraction U 769 4000 (S) o-Terphenyl 55.7 18.0-148 Laboratory Control Sample (LCS) (LCS) R3888979-1 02/08/23 18:38 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/kg ug/kg %% TPH (GC/FID) High Fraction 50000 33000 66.0 50.0-150 (S) o-Terphenyl 75.2 18.0-148 L1582427-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1582427-01 02/09/23 01:51 • (MS) R3888979-3 02/09/23 02:04 • (MSD) R3888979-4 02/09/23 02:17 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 ug/kg ug/kg ug/kg ug/kg %%%%% TPH (GC/FID) High Fraction 56700 U 409000 46600 721 82.2 10 50.0-150 J5 J3 159 20 (S) o-Terphenyl 63.6 44.5 18.0-148 Sample Narrative: OS: Cannot run at lower dilution due to viscosity of extract 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 24 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 24 of 34 QUALITY CONTROL SUMMARYWG2002247 TPH by Method MADEPE L1582427-03 Method Blank (MB) (MB) R3889367-1 02/09/23 12:35 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C9-C18 Aliphatics U 33.3 100 Unadjusted C19-C36 Aliphatics 35.2 J 33.3 100 Unadjusted Total Petroleum Hydrocarbons 35.2 J 33.3 100 (S) 1-Chloro-octadecane 55.3 40.0-140 Method Blank (MB) (MB) R3889367-2 02/09/23 12:57 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C11-C22 Aromatics 36.0 J 33.3 100 Unadjusted Total Petroleum Hydrocarbons 36.0 J 33.3 100 (S) o-Terphenyl 62.1 40.0-140 (S) 2-Fluorobiphenyl 86.3 40.0-140 (S) 2-Bromonaphthalene 84.0 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3889367-3 02/09/23 13:20 • (LCSD) R3889367-4 02/09/23 13:42 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 %%%%% Unadjusted C9-C18 Aliphatics 600 408 421 68.0 70.2 40.0-140 3.14 25 Unadjusted C19-C36 Aliphatics 800 750 766 93.8 95.8 40.0-140 2.11 25 (S) 1-Chloro-octadecane 75.0 73.0 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3889367-5 02/09/23 14:04 • (LCSD) R3889367-6 02/09/23 14:26 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 %%%%% Unadjusted C11-C22 Aromatics 1700 1370 1430 80.6 84.1 40.0-140 4.29 25 (S) o-Terphenyl 74.9 74.1 40.0-140 (S) 2-Fluorobiphenyl 87.9 91.0 40.0-140 (S) 2-Bromonaphthalene 83.6 86.6 40.0-140 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 25 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 25 of 34 QUALITY CONTROL SUMMARYWG2000359 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1582427-03 Method Blank (MB) (MB) R3888265-3 02/07/23 11:13 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: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 26 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 26 of 34 QUALITY CONTROL SUMMARYWG2000359 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1582427-03 Method Blank (MB) (MB) R3888265-3 02/07/23 11:13 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 U 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 71.4 15.0-314 (S) 2-Fluorobiphenyl 77.6 22.0-127 (S) p-Terphenyl-d14 81.2 29.0-141 (S) Phenol-d5 20.7 8.00-424 (S) 2-Fluorophenol 32.7 10.0-120 (S) 2,4,6-Tribromophenol 62.0 10.0-153 Laboratory Control Sample (LCS) (LCS) R3888265-1 02/07/23 10:30 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% Acenaphthene 50.0 37.9 75.8 47.0-145 Acenaphthylene 50.0 40.5 81.0 33.0-145 Anthracene 50.0 37.2 74.4 27.0-133 Benzidine 100 4.81 4.81 1.00-120 Benzo(a)anthracene 50.0 39.2 78.4 33.0-143 Benzo(b)fluoranthene 50.0 39.5 79.0 24.0-159 Benzo(k)fluoranthene 50.0 39.1 78.2 11.0-162 Benzo(g,h,i)perylene 50.0 38.8 77.6 1.00-219 Benzo(a)pyrene 50.0 41.9 83.8 17.0-163 Bis(2-chlorethoxy)methane 50.0 33.9 67.8 1.00-219 Bis(2-chloroethyl)ether 50.0 35.0 70.0 33.0-185 2,2-oxybis(1-chloropropane)50.0 34.9 69.8 36.0-166 4-Bromophenyl-phenylether 50.0 40.5 81.0 53.0-127 2-Chloronaphthalene 50.0 37.9 75.8 60.0-120 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 27 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 27 of 34 QUALITY CONTROL SUMMARYWG2000359 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1582427-03 Laboratory Control Sample (LCS) (LCS) R3888265-1 02/07/23 10:30 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% 4-Chlorophenyl-phenylether 50.0 39.4 78.8 25.0-158 Chrysene 50.0 39.9 79.8 17.0-168 Dibenz(a,h)anthracene 50.0 38.9 77.8 1.00-227 3,3-Dichlorobenzidine 100 67.4 67.4 1.00-262 2,4-Dinitrotoluene 50.0 40.6 81.2 39.0-139 2,6-Dinitrotoluene 50.0 40.4 80.8 50.0-158 Fluoranthene 50.0 40.1 80.2 26.0-137 Fluorene 50.0 39.5 79.0 59.0-121 Hexachlorobenzene 50.0 39.0 78.0 1.00-152 Hexachloro-1,3-butadiene 50.0 33.3 66.6 24.0-120 Hexachlorocyclopentadiene 50.0 32.0 64.0 10.0-120 Hexachloroethane 50.0 34.3 68.6 40.0-120 Indeno(1,2,3-cd)pyrene 50.0 36.1 72.2 1.00-171 Isophorone 50.0 32.1 64.2 21.0-196 Naphthalene 50.0 32.6 65.2 21.0-133 Nitrobenzene 50.0 32.6 65.2 35.0-180 n-Nitrosodimethylamine 50.0 16.4 32.8 10.0-120 n-Nitrosodiphenylamine 50.0 32.3 64.6 44.0-120 n-Nitrosodi-n-propylamine 50.0 36.4 72.8 1.00-230 Phenanthrene 50.0 38.8 77.6 54.0-120 Benzylbutyl phthalate 50.0 40.1 80.2 1.00-152 Bis(2-ethylhexyl)phthalate 50.0 41.5 83.0 8.00-158 Di-n-butyl phthalate 50.0 40.6 81.2 1.00-120 Diethyl phthalate 50.0 39.8 79.6 1.00-120 Dimethyl phthalate 50.0 39.8 79.6 1.00-120 Di-n-octyl phthalate 50.0 35.9 71.8 4.00-146 Pyrene 50.0 39.3 78.6 52.0-120 1,2,4-Trichlorobenzene 50.0 32.6 65.2 44.0-142 4-Chloro-3-methylphenol 50.0 30.3 60.6 22.0-147 2-Chlorophenol 50.0 28.6 57.2 23.0-134 2,4-Dichlorophenol 50.0 32.3 64.6 39.0-135 2,4-Dimethylphenol 50.0 27.1 54.2 32.0-120 4,6-Dinitro-2-methylphenol 50.0 37.3 74.6 1.00-181 2,4-Dinitrophenol 50.0 31.8 63.6 1.00-191 2-Nitrophenol 50.0 33.4 66.8 29.0-182 4-Nitrophenol 50.0 12.5 25.0 1.00-132 Pentachlorophenol 50.0 37.2 74.4 14.0-176 Phenol 50.0 11.0 22.0 5.00-120 2,4,6-Trichlorophenol 50.0 39.0 78.0 37.0-144 (S) Nitrobenzene-d5 51.8 15.0-314 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 28 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 28 of 34 QUALITY CONTROL SUMMARYWG2000359 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1582427-03 Laboratory Control Sample (LCS) (LCS) R3888265-1 02/07/23 10:30 Spike Amount LCS Result LCS Rec.Rec. Limits LCS Qualifier Analyte ug/l ug/l %% (S) 2-Fluorobiphenyl 74.2 22.0-127 (S) p-Terphenyl-d14 75.2 29.0-141 (S) Phenol-d5 20.3 8.00-424 (S) 2-Fluorophenol 34.1 10.0-120 (S) 2,4,6-Tribromophenol 75.5 10.0-153 L1582316-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1582316-01 02/07/23 12:16 • (MS) R3888265-4 02/07/23 12:37 • (MSD) R3888265-5 02/07/23 12:58 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 30.9 31.4 61.8 62.8 1 47.0-145 1.61 48 Acenaphthylene 50.0 U 32.2 33.1 64.4 66.2 1 33.0-145 2.76 74 Anthracene 50.0 U 33.4 31.1 66.8 62.2 1 27.0-133 7.13 66 Benzidine 100 U U 3.80 0.000 3.80 1 1.00-120 J6 J3 200 40 Benzo(a)anthracene 50.0 U 36.3 32.3 72.6 64.6 1 33.0-143 11.7 53 Benzo(b)fluoranthene 50.0 U 37.0 32.9 74.0 65.8 1 24.0-159 11.7 71 Benzo(k)fluoranthene 50.0 U 36.4 32.7 72.8 65.4 1 11.0-162 10.7 63 Benzo(g,h,i)perylene 50.0 U 37.8 32.1 75.6 64.2 1 1.00-219 16.3 97 Benzo(a)pyrene 50.0 U 40.2 35.1 80.4 70.2 1 17.0-163 13.5 72 Bis(2-chlorethoxy)methane 50.0 U 25.6 28.7 51.2 57.4 1 33.0-184 11.4 54 Bis(2-chloroethyl)ether 50.0 U 25.1 25.0 50.2 50.0 1 12.0-158 0.399 108 2,2-oxybis(1-chloropropane)50.0 U 24.9 27.7 49.8 55.4 1 36.0-166 10.6 76 4-Bromophenyl-phenylether 50.0 U 34.3 34.7 68.6 69.4 1 53.0-127 1.16 43 2-Chloronaphthalene 50.0 U 28.4 30.8 56.8 61.6 1 60.0-120 J6 8.11 24 4-Chlorophenyl-phenylether 50.0 U 34.5 32.6 69.0 65.2 1 25.0-158 5.66 61 Chrysene 50.0 U 37.9 33.2 75.8 66.4 1 17.0-168 13.2 87 Dibenz(a,h)anthracene 50.0 U 37.0 32.1 74.0 64.2 1 1.00-227 14.2 126 3,3-Dichlorobenzidine 100 U 38.4 48.6 38.4 48.6 1 1.00-262 23.4 108 2,4-Dinitrotoluene 50.0 U 38.8 34.1 77.6 68.2 1 39.0-139 12.9 42 2,6-Dinitrotoluene 50.0 U 34.6 33.4 69.2 66.8 1 50.0-158 3.53 48 Fluoranthene 50.0 U 40.4 33.9 80.8 67.8 1 26.0-137 17.5 66 Fluorene 50.0 U 34.5 33.0 69.0 66.0 1 59.0-121 4.44 38 Hexachlorobenzene 50.0 U 33.7 33.3 67.4 66.6 1 1.00-152 1.19 55 Hexachloro-1,3-butadiene 50.0 U 23.3 26.5 46.6 53.0 1 24.0-120 12.9 62 Hexachlorocyclopentadiene 50.0 U 23.0 27.5 46.0 55.0 1 10.0-146 17.8 34 Hexachloroethane 50.0 U 21.9 24.8 43.8 49.6 1 40.0-120 12.4 52 Indeno(1,2,3-cd)pyrene 50.0 U 35.4 30.3 70.8 60.6 1 1.00-171 15.5 99 Isophorone 50.0 U 24.8 26.8 49.6 53.6 1 21.0-196 7.75 93 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 29 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 29 of 34 QUALITY CONTROL SUMMARYWG2000359 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1582427-03 L1582316-01 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1582316-01 02/07/23 12:16 • (MS) R3888265-4 02/07/23 12:37 • (MSD) R3888265-5 02/07/23 12:58 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 24.3 26.2 48.6 52.4 1 21.0-133 7.52 65 Nitrobenzene 50.0 U 24.0 26.8 48.0 53.6 1 35.0-180 11.0 62 n-Nitrosodimethylamine 50.0 U 12.7 14.2 25.4 28.4 1 10.0-120 11.2 40 n-Nitrosodiphenylamine 50.0 U 28.2 27.7 56.4 55.4 1 16.0-160 1.79 28 n-Nitrosodi-n-propylamine 50.0 U 27.6 28.6 55.2 57.2 1 1.00-230 3.56 87 Phenanthrene 50.0 U 34.7 32.5 69.4 65.0 1 54.0-120 6.55 39 Benzylbutyl phthalate 50.0 U 39.2 34.2 78.4 68.4 1 1.00-152 13.6 60 Bis(2-ethylhexyl)phthalate 50.0 U 39.3 35.1 78.6 70.2 1 8.00-158 11.3 82 Di-n-butyl phthalate 50.0 U 39.6 34.0 79.2 68.0 1 1.00-120 15.2 47 Diethyl phthalate 50.0 U 36.9 32.4 73.8 64.8 1 1.00-120 13.0 100 Dimethyl phthalate 50.0 U 33.8 32.8 67.6 65.6 1 1.00-120 3.00 183 Di-n-octyl phthalate 50.0 U 36.4 31.6 72.8 63.2 1 4.00-146 14.1 69 Pyrene 50.0 U 35.6 32.6 71.2 65.2 1 52.0-120 8.80 49 1,2,4-Trichlorobenzene 50.0 U 23.0 26.0 46.0 52.0 1 44.0-142 12.2 50 4-Chloro-3-methylphenol 50.0 U 28.4 26.8 56.8 53.6 1 22.0-147 5.80 73 2-Chlorophenol 50.0 U 21.0 23.3 42.0 46.6 1 23.0-134 10.4 61 2,4-Dichlorophenol 50.0 U 25.1 26.9 50.2 53.8 1 39.0-135 6.92 50 2,4-Dimethylphenol 50.0 U 22.3 24.4 44.6 48.8 1 32.0-120 8.99 58 4,6-Dinitro-2-methylphenol 50.0 U 33.8 31.8 67.6 63.6 1 1.00-181 6.10 203 2,4-Dinitrophenol 50.0 U 34.8 31.5 69.6 63.0 1 1.00-191 9.95 132 2-Nitrophenol 50.0 U 24.2 27.3 48.4 54.6 1 29.0-182 12.0 55 4-Nitrophenol 50.0 U 13.7 10.9 27.4 21.8 1 1.00-132 22.8 131 Pentachlorophenol 50.0 U 38.6 34.1 77.2 68.2 1 14.0-176 12.4 86 Phenol 50.0 U 8.67 9.12 17.3 18.2 1 5.00-120 5.06 64 2,4,6-Trichlorophenol 50.0 0.678 31.0 32.2 60.6 63.0 1 37.0-144 3.80 58 (S) Nitrobenzene-d5 43.4 44.8 15.0-314 (S) 2-Fluorobiphenyl 55.4 61.7 22.0-127 (S) p-Terphenyl-d14 69.3 62.5 29.0-141 (S) Phenol-d5 16.4 17.1 8.00-424 (S) 2-Fluorophenol 25.1 28.4 10.0-120 (S) 2,4,6-Tribromophenol 68.5 66.5 10.0-153 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 30 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 30 of 34 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. MDL (dry)Method Detection Limit. 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 B The same analyte is found in the associated blank. C4 The reported concentration is an estimate. The continuing calibration standard associated with this data responded low. Data is likely to show a low bias concerning the result. J The identification of the analyte is acceptable; the reported value is an estimate. 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. J5 The sample matrix interfered with the ability to make any accurate determination; spike value is high. 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: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 31 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 31 of 34 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: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 11:42 32 of 34 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Excel Civil & Environmental Associates 2021126 L1582427 02/13/23 12:36 32 of 34