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DERR-2024-011176
1 PETROLEUM STORAGE TANK PERMANENT CLOSURE NOTICE (rev. 10/21) FACILITY ID# . … State Use Only Date Processed by Date Mailed to LHD LUST ID# Date to LUST Review Closure Notice prepared at the request of the owner/operator (identified below) by of (company name) Phone # Address City State Zip TANKS CLOSED Piping Only Tank # Please complete for each tank Type (Steel,FRP,etc.) Date Installed Capacity (Gallons) Substance stored* Date last operated Date Closed Removed/In Place/Change in Service (CIS)? *Indicate the specific substance stored in each tank to be closed (regular, unleaded, diesel, waste oil, etc.) CLOSURE INFORMATION Fuel was emptied Sludge was removed Tank was cleaned Tank was: Purged Inerted Method Used: Location of Closure Records: For In-Place Closure: tanks filled with: For Change-In-Service: Substance to be stored: FACILITY INFORMATION Tank Owner Phone # Address City State Zip Facility Name Address City State Zip Contact person Phone # Total number of regulated petroleum storage tanks at this site before closure Total number of regulated petroleum storage tanks at this site after closure TANK REMOVER Name Cert. # TR Exp. Date Company Phone # Address City State Zip SOIL/GROUNDWATER SAMPLER Name Cert. # GS Exp. Date Company Phone # Address City State Zip Stantec Consulting Services, Inc. (385)547-5171 Josie Messersmith 2890 East Cottonwood Parkway, Suite 300 Salt Lake City UT 84121 TRMC Retail LLC 500 Speedway Drive Enon OH 45323 Speedway No. 9414 1344 Fort Union Blvd SLC UT 84121 3 0 2A 2B1 FRP FRP FRP 5/31/2014 5/31/2014 5/31/2014 15000 8000 7000 GASOLINE GASOLINE DIESEL 6/26/2024 6/26/2024 6/26/2024 3/26/2024 3/26/2024 3/26/2024 REMOVAL REMOVAL REMOVAL Greg Neville -0244 10-1-2024 Pacific West Environmental and Infrastructure 801-972-2727 1555 W 2200 S, Ste A Salt Lake City UT 84119 Steve Yorgason 1630 4/15/2025 Stantec Consulting Services, Inc.(801) 261-0090 2890 East Cottonwood Parkway, Suite 300 Salt Lake City UT 84121 x Dry Ice x x x Stantec Consulting Services Inc. NA NA 4000775 Marc Westfall (214)415-0146 (214)415-0146 2 DISPOSAL SITES USED Location Name Contact Name Phone # Date Amount Tank(s) Tank # Product From Tank(s) Contaminated Water From Tank Cleaning Sludge Contaminated Water From Excavation Contaminated Soil SITE ASSESSMENT Complete the Facility Site Plat (Closure Notice) and Sample Information Table (Closure Notice) on pages 3 and 4 to show the locations, depths, and other information on all soil/groundwater samples taken for closure. The samples must be consistently identified by sample ID # on the site plat, table, and lab analysis report. Completed Facility Site Plat (Closure Notice) is attached. The following must be included (enter the distance, and direction (N,S,E,W) from the area of contamination or, where applicable, use OH for overhead, NP for not present): Water Line Sewer Line Telephone Electrical Property Line Buildings Samples were properly: Collected Labeled Packaged Transported Samples were in sight of the person in custody at all times or in a secured locked place. I certify under penalty of law that the closure site assessment at this facility was conducted in accordance with 40 CFR 280.52, 40 CFR 280.72, and U.A.C. R311-205, and that any additional samples required by 40 CFR 280.52, 40 CFR 280.72 and U.A.C. R311-205-2(1)(a) were properly collected. Signature of Certified Groundwater/Soil Sampler Full name of Certified Sampler Date If contamination at the facility is confirmed, any person providing remedial assistance for a fee must be a Certified UST Consultant. The Certified UST Consultant providing assistance is: CERTIFIED UST CONSULTANT Name Cert. #CC Exp. Date Company Address City State Zip Phone # Please explain any unusual circumstances that occurred during the site assessment or closure: Stantec Consulting Services Inc. 2890 East Cottonwood Parkway, Suite 33 Salt Lake City UT 83279 801-261-0090 Ace Intermountain Recycling Center Scale House (385)214-9539 306-26-2024 de minimis -------- NA NA NA -- -- -- -- -- ---- -- -- -- -- -- STC Industrial Services Shane Adolf (801)595-8151 X 1540 G6-25-2024 X X X X X X X X NP NP NP Natural Gas NP Storm Drain UK Completed Sample Information Table (Closure Notice) is attached. Certified lab analytical environmental sample results are attached. Unified Soil Classification (USC) sample results are attached. Chain of Custody form is attached. 57 ft E 7 ftW 2 ftE X Steve Yorgason Anna Skinner 0271 Soil sample SS-8 was not collected based on conversation with David Wilson on site at time of removal that it was not A confirmed release was reported to UDEQ-DERR based on the receipt of closure sample analytical results on 8/16/2024. The benzene concentration of GW-1 exceeded the Tier 1 Screening Level, and the toluene, TPH-GRO, and TPH-DRO concentrations exceeded the Initial Screening Levels. The benzene, toluene, TPH-GRO, and TPH-DRO concentrations of GW-2 exceeded the Initial Screening Levels. far enough from the previous sample location to require an additional sample. 9/18/2024 12/31/2026 3 Facility Site Plat (Closure Notice) The site plat must be drawn to an appropriate identified scale. It must show planned sampling locations, substances stored in tanks, and other relevant information. Tank and sample identification numbers must be consistent with the information given on p. 1 and 4 of the Closure Notice. Facility ID: Drawn By: Date: X = Sample locations (SS-#, WS-#, USC-#) Site Plat Must Indicate Actual Locations Of: 0 = Monitoring Wells (MW-#) √Current & former tanks, piping & dispensers = Soil boring (SB-#), or Geoprobe Boring (GP-#) √ Location of all samples to be taken ●= Water Wells (domestic, livestock, etc.)√ Buildings, fences, & property boundaries Slope of Surface Topography: (N,NW,W,SW,S,SE,E,NE)√ Utility conduits (sewers, gas, water, storm drains, electrical, etc.) Land Use At Site: Residential Commercial Industrial √ Depth to groundwater (if encountered) Surrounding Land: Residential Commercial Industrial √Excavations, GW monitoring wells & soil stockpiles North Scale: 1”= Feet SEE ATTACHED SITE PLAT 4 SAMPLE INFORMATION TABLE (Closure Notice) Complete table for all samples that were taken for closure. Sample ID numbers on the table must be consistent with the sample ID numbers given on the site plat and in the lab analysis report. 1 Soil (SS), Groundwater (GW), or Unified Soil Classification (USC).2 Final depth (in feet) below grade at which samples were taken.3 Contaminant compound(s) analyzed for each sample (TPH, BTEXN, O&G, etc). 4 Appropriate analysis methods for contaminant compound(s) in each sample State Certified Laboratory used Address City State Zip Contact Person Phone # I certify under penalty of law that I am the Owner of the tank(s) described above and that I am familiar with the information on this form and that it is true, accurate and complete and further, that the procedures described herein were followed during tank closure. Signature of PST owner Full Name of owner Date Return completed Closure Notice form, Facility Site Plat and Sample Information Table, Soil/Groundwater sample lab analysis results, USC sample results, and Chain of Custody form within 90 days of PST Closure to: Mailing Address: State of Utah Dept. of Environmental Quality DERR / PST Section P.O. Box 144840 Salt Lake City, Utah 84114-4840 Sample # Substance stored in tank Sample type1 Depth2 Compounds3 Analysis method(s)4 Street Address: Multi Agency State Office Building 195 North 1950 West (First Floor) Salt Lake City, Utah 84116 SS-1 SS-2 SS-3 SS-4 SS-5 USC-1 USC-2 SS-6 GW-1 USC-3 GW-2 gasoline and diesel gasoline and diesel gasoline and diesel gasoline and diesel gasoline and diesel gasoline and diesel gasoline and diesel gasoline and diesel gasoline and diesel gasoline and diesel gasoline and diesel SS SS SS SS SS USC USC SS GW USC GW 8 8 5 5 5 8 5 5 8 5 8 MBTEXN, GRO, and DRO MBTEXN, GRO, and DRO MBTEXN, GRO, and DRO MBTEXN, GRO, and DRO MBTEXN, GRO, and DRO USC USC MBTEXN, GRO, and DRO MBTEXN, GRO, and DRO USC MBTEXN, GRO, and DRO 8260 and 8015 8260 and 8015 8260 and 8015 8260 and 8015 8260 and 8015 ASTM-D2487 ASTM-D2487 8260 and 8015 8260 and 8015 ASTM-D2487 8260 and 8015 Pace National Analytical 12065 Lebanon Road Mt. Juliet TN 37122 Marty Edwards 615-758-5858 Marc Westfall SS-7 SS-9 gasoline and diesel gasoline and diesel SS SS 5 5 MBTEXN, GRO, and DRO MBTEXN, GRO, and DRO 8260 and 8015 8260 and 8015 9/19/2024 RUL CANOPY/DISPENSERS PUL DSL CAR WAS H SPEEDWAY Store No. 9414 East Fort Union BLVD -SIDEWALK- -CONC R E T E - OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE OE P PPP P P P P P P P P P P P P PPP P P P P P P P P P P P P P P P P P P P P P P P P P P P PP P PP P The UPS Store Protein Foundry Great Clips ELECTRIC CONNECTION BOXES AIR/VACUUM DUMPSTER STORE SIGN -ASPHA L T - -ASPHA L T - -ASPHA L T - -ASPHA L T - CONCRETE UST AREA -C O N C R E T E - ELECTRIC CONNECTION BOX DRAINAGE GRATE N 0 20 40 APPROXIMATE SCALE IN FEET No warranty is made by Stantec as to the accuracy, reliability, or completeness of these data. Original data were compiled from various sources. This information may not meet National Map Accuracy Standards. This product was developed electronically, and may be updated without notification. Any reproduction may result in a loss of scale and or information. FILEPATH:\\us0395-ppfss01\shared_projects\203723864\05_report_deliv\deliverable\reports\cn\site_plan_47151_cn.pdf 410 17th Street Suite 1400Denver, Colorado 80202 LEGEND: APPROXIMATE PROPERTY BOUNDARY WATER SEWER NATURAL GAS BURIED ELECTRICAL OVERHEAD ELECTRICAL PRODUCT LINE POWER POLE SITE LAMP P OE FOR: CHECKED BY:PROJECT NUMBER:© 2024 Microsoft Corporation © 2024 Maxar ©CNES (2024) Di Airbus DS APPROVED BY:DATE: FIGURE: 1SITE MAP AMSSYCCL/AMS203723864 4/16/2024 SPEEDWAY No. 9414 1344 FT UNION BLVD COTTONWOOD HEIGHTS, UTAH 84121 SS-1/USC-1 GW-1 SS-2 PGW-2 SS-3SS-4/USC-2 SS-5 SS-6 SS-7 SS-9/USC-3 DRAWN BY: ~ ~ ~ E ANALYTICAL REPORT July 11, 2024 Stantec - 7-11 (Direct) Sample Delivery Group:L1751881 Samples Received:06/28/2024 Project Number:203723864 Description:7-11#47151 / SDWY #9414 Salt Lake City, UT Site:47151 Report To:Anna Skinner 2890 E Cottonwood Pkwy Suite 300 Salt Lake City, UT 84121 Entire Report Reviewed By: July 11, 2024 [Preliminary Report] Marty Edwards III 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 mydata.pacelabs.com 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 1 of 27 July 12, 2024 Marty Edwards III Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 1 of 27 TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 5 Sr: Sample Results 6 SS-1 L1751881-01 6 SS-2 L1751881-02 7 SS-3 L1751881-03 8 SS-4 L1751881-04 9 SS-5 L1751881-05 10 SS-6 L1751881-06 11 SS-7 L1751881-07 12 SS-9 L1751881-08 13 GW-1 L1751881-09 14 GW-2 L1751881-10 15 Qc: Quality Control Summary 16 Total Solids by Method 2540 G-2011 16 Volatile Organic Compounds (GC/MS) by Method 8260B 18 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 19 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 22 Semi-Volatile Organic Compounds (GC) by Method 8015 23 Gl: Glossary of Terms 24 Al: Accreditations & Locations 25 Sc: Sample Chain of Custody 26 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 2 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 2 of 27 SAMPLE SUMMARY Collected by Collected date/time Received date/time SS-1 L1751881-01 Solid 06/26/24 08:10 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2315143 1 07/01/24 14:19 07/01/24 14:24 JAV Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2318487 1 07/02/24 13:26 07/06/24 16:32 BAM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2318330 10 07/08/24 11:27 07/09/24 18:18 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time SS-2 L1751881-02 Solid 06/26/24 08:20 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2315147 1 07/01/24 15:33 07/01/24 15:40 CMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2318487 1 07/02/24 13:26 07/06/24 16:53 BAM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2318330 1 07/08/24 11:27 07/09/24 16:01 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time SS-3 L1751881-03 Solid 06/27/24 11:07 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2315147 1 07/01/24 15:33 07/01/24 15:40 CMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2318487 1 07/02/24 13:26 07/06/24 17:15 BAM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2318330 1 07/08/24 11:27 07/09/24 17:13 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time SS-4 L1751881-04 Solid 06/26/24 10:00 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2315147 1 07/01/24 15:33 07/01/24 15:40 CMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2318487 1 07/02/24 13:26 07/06/24 17:36 BAM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2318330 1 07/08/24 11:27 07/09/24 16:57 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time SS-5 L1751881-05 Solid 06/26/24 11:10 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2315147 1 07/01/24 15:33 07/01/24 15:40 CMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2318487 1 07/02/24 13:26 07/06/24 17:57 BAM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2318330 1 07/08/24 11:27 07/09/24 15:45 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time SS-6 L1751881-06 Solid 06/27/24 11:30 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2315147 1 07/01/24 15:33 07/01/24 15:40 CMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2321247 25 07/02/24 13:26 07/11/24 16:53 JBE Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2318330 1 07/08/24 11:27 07/09/24 12:46 JAS Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 3 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 3 of 27 SAMPLE SUMMARY Collected by Collected date/time Received date/time SS-7 L1751881-07 Solid 06/27/24 10:45 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2315147 1 07/01/24 15:33 07/01/24 15:40 CMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2318487 1 07/02/24 13:26 07/06/24 18:19 BAM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2318330 1 07/08/24 11:27 07/09/24 15:29 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time SS-9 L1751881-08 Solid 06/26/24 13:00 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Total Solids by Method 2540 G-2011 WG2315147 1 07/01/24 15:33 07/01/24 15:40 CMB Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2318487 1 07/02/24 13:26 07/06/24 18:40 BAM Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 8015 WG2318330 1 07/08/24 11:27 07/09/24 17:30 JAS Mt. Juliet, TN Collected by Collected date/time Received date/time GW-1 L1751881-09 GW 06/26/24 07:40 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B WG2320000 50 07/10/24 05:28 07/10/24 05:28 DYW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2317495 1 07/04/24 15:45 07/04/24 15:45 DYW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2317396 1 07/05/24 20:47 07/08/24 21:38 TJD Mt. Juliet, TN Collected by Collected date/time Received date/time GW-2 L1751881-10 GW 06/26/24 07:50 06/28/24 08:00 Method Batch Dilution Preparation Analysis Analyst Location date/time date/time Volatile Organic Compounds (GC/MS) by Method 8260B WG2320000 25 07/10/24 05:50 07/10/24 05:50 DYW Mt. Juliet, TN Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 WG2317495 1 07/04/24 16:06 07/04/24 16:06 DYW Mt. Juliet, TN Semi-Volatile Organic Compounds (GC) by Method 3511/8015 WG2317396 1 07/05/24 20:47 07/08/24 21:58 TJD Mt. Juliet, TN 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 4 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 4 of 27 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] Marty Edwards III Project Manager 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 5 of 27 Marty Edwards III Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 5 of 27 SAMPLE RESULTS - 01 L1751881 SS-1 Collected date/time: 06/26/24 08:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.3 1 07/01/2024 14:24 WG2315143 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction ND 0.500 1 07/06/2024 16:32 WG2318487 Benzene 0.00264 0.00100 1 07/06/2024 16:32 WG2318487 Toluene 0.00620 0.00500 1 07/06/2024 16:32 WG2318487 Ethylbenzene ND 0.00100 1 07/06/2024 16:32 WG2318487 Xylenes, Total 0.00620 0.00300 1 07/06/2024 16:32 WG2318487 Methyl tert-butyl ether ND 0.00100 1 07/06/2024 16:32 WG2318487 Naphthalene ND 0.00500 1 07/06/2024 16:32 WG2318487 (S) Toluene-d8 125 75.0-131 07/06/2024 16:32 WG2318487 (S) 4-Bromofluorobenzene 108 67.0-138 07/06/2024 16:32 WG2318487 (S) 1,2-Dichloroethane-d4 126 70.0-130 07/06/2024 16:32 WG2318487 Semi-Volatile Organic Compounds (GC) by Method 8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 40.0 10 07/09/2024 18:18 WG2318330 (S) o-Terphenyl 51.7 18.0-148 07/09/2024 18:18 WG2318330 Sample Narrative: L1751881-01 WG2318330: Cannot run at lower dilution due to viscosity of extract 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 6 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 6 of 27 SAMPLE RESULTS - 02 L1751881 SS-2 Collected date/time: 06/26/24 08:20 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.1 1 07/01/2024 15:40 WG2315147 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction ND 0.500 1 07/06/2024 16:53 WG2318487 Benzene 0.00206 0.00100 1 07/06/2024 16:53 WG2318487 Toluene ND 0.00500 1 07/06/2024 16:53 WG2318487 Ethylbenzene ND 0.00100 1 07/06/2024 16:53 WG2318487 Xylenes, Total ND 0.00300 1 07/06/2024 16:53 WG2318487 Methyl tert-butyl ether ND 0.00100 1 07/06/2024 16:53 WG2318487 Naphthalene ND 0.00500 1 07/06/2024 16:53 WG2318487 (S) Toluene-d8 126 75.0-131 07/06/2024 16:53 WG2318487 (S) 4-Bromofluorobenzene 94.7 67.0-138 07/06/2024 16:53 WG2318487 (S) 1,2-Dichloroethane-d4 128 70.0-130 07/06/2024 16:53 WG2318487 Semi-Volatile Organic Compounds (GC) by Method 8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.00 1 07/09/2024 16:01 WG2318330 (S) o-Terphenyl 33.7 18.0-148 07/09/2024 16:01 WG2318330 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 7 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 7 of 27 SAMPLE RESULTS - 03 L1751881 SS-3 Collected date/time: 06/27/24 11:07 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 90.2 1 07/01/2024 15:40 WG2315147 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction ND 0.500 1 07/06/2024 17:15 WG2318487 Benzene ND 0.00100 1 07/06/2024 17:15 WG2318487 Toluene ND 0.00500 1 07/06/2024 17:15 WG2318487 Ethylbenzene ND 0.00100 1 07/06/2024 17:15 WG2318487 Xylenes, Total ND 0.00300 1 07/06/2024 17:15 WG2318487 Methyl tert-butyl ether ND 0.00100 1 07/06/2024 17:15 WG2318487 Naphthalene ND 0.00500 1 07/06/2024 17:15 WG2318487 (S) Toluene-d8 127 75.0-131 07/06/2024 17:15 WG2318487 (S) 4-Bromofluorobenzene 107 67.0-138 07/06/2024 17:15 WG2318487 (S) 1,2-Dichloroethane-d4 130 70.0-130 07/06/2024 17:15 WG2318487 Semi-Volatile Organic Compounds (GC) by Method 8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction 8.54 4.00 1 07/09/2024 17:13 WG2318330 (S) o-Terphenyl 48.5 18.0-148 07/09/2024 17:13 WG2318330 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 8 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 8 of 27 SAMPLE RESULTS - 04 L1751881 SS-4 Collected date/time: 06/26/24 10:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.9 1 07/01/2024 15:40 WG2315147 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction ND 0.500 1 07/06/2024 17:36 WG2318487 Benzene 0.00216 0.00100 1 07/06/2024 17:36 WG2318487 Toluene 0.0105 0.00500 1 07/06/2024 17:36 WG2318487 Ethylbenzene ND 0.00100 1 07/06/2024 17:36 WG2318487 Xylenes, Total 0.00320 0.00300 1 07/06/2024 17:36 WG2318487 Methyl tert-butyl ether ND 0.00100 1 07/06/2024 17:36 WG2318487 Naphthalene ND 0.00500 1 07/06/2024 17:36 WG2318487 (S) Toluene-d8 125 75.0-131 07/06/2024 17:36 WG2318487 (S) 4-Bromofluorobenzene 102 67.0-138 07/06/2024 17:36 WG2318487 (S) 1,2-Dichloroethane-d4 139 J1 70.0-130 07/06/2024 17:36 WG2318487 Semi-Volatile Organic Compounds (GC) by Method 8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.00 1 07/09/2024 16:57 WG2318330 (S) o-Terphenyl 21.3 18.0-148 07/09/2024 16:57 WG2318330 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 9 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 9 of 27 SAMPLE RESULTS - 05 L1751881 SS-5 Collected date/time: 06/26/24 11:10 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 89.7 1 07/01/2024 15:40 WG2315147 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction ND 0.500 1 07/06/2024 17:57 WG2318487 Benzene 0.00184 0.00100 1 07/06/2024 17:57 WG2318487 Toluene ND 0.00500 1 07/06/2024 17:57 WG2318487 Ethylbenzene ND 0.00100 1 07/06/2024 17:57 WG2318487 Xylenes, Total 0.00342 0.00300 1 07/06/2024 17:57 WG2318487 Methyl tert-butyl ether ND 0.00100 1 07/06/2024 17:57 WG2318487 Naphthalene ND 0.00500 1 07/06/2024 17:57 WG2318487 (S) Toluene-d8 120 75.0-131 07/06/2024 17:57 WG2318487 (S) 4-Bromofluorobenzene 106 67.0-138 07/06/2024 17:57 WG2318487 (S) 1,2-Dichloroethane-d4 134 J1 70.0-130 07/06/2024 17:57 WG2318487 Semi-Volatile Organic Compounds (GC) by Method 8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.00 1 07/09/2024 15:45 WG2318330 (S) o-Terphenyl 36.0 18.0-148 07/09/2024 15:45 WG2318330 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 10 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 10 of 27 SAMPLE RESULTS - 06 L1751881 SS-6 Collected date/time: 06/27/24 11:30 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 92.7 1 07/01/2024 15:40 WG2315147 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction ND 12.5 25 07/11/2024 16:53 WG2321247 Benzene ND 0.0250 25 07/11/2024 16:53 WG2321247 Toluene ND 0.125 25 07/11/2024 16:53 WG2321247 Ethylbenzene ND 0.0250 25 07/11/2024 16:53 WG2321247 Xylenes, Total ND 0.0750 25 07/11/2024 16:53 WG2321247 Methyl tert-butyl ether ND 0.0250 25 07/11/2024 16:53 WG2321247 Naphthalene ND 0.125 25 07/11/2024 16:53 WG2321247 (S) Toluene-d8 120 75.0-131 07/11/2024 16:53 WG2321247 (S) 4-Bromofluorobenzene 112 67.0-138 07/11/2024 16:53 WG2321247 (S) 1,2-Dichloroethane-d4 102 70.0-130 07/11/2024 16:53 WG2321247 Sample Narrative: L1751881-06 WG2321247: Non-target compounds too high to run at a lower dilution. Semi-Volatile Organic Compounds (GC) by Method 8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.00 1 07/09/2024 12:46 WG2318330 (S) o-Terphenyl 44.8 18.0-148 07/09/2024 12:46 WG2318330 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 11 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 11 of 27 SAMPLE RESULTS - 07 L1751881 SS-7 Collected date/time: 06/27/24 10:45 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 84.9 1 07/01/2024 15:40 WG2315147 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction ND 0.500 1 07/06/2024 18:19 WG2318487 Benzene 0.00226 0.00100 1 07/06/2024 18:19 WG2318487 Toluene ND 0.00500 1 07/06/2024 18:19 WG2318487 Ethylbenzene ND 0.00100 1 07/06/2024 18:19 WG2318487 Xylenes, Total ND 0.00300 1 07/06/2024 18:19 WG2318487 Methyl tert-butyl ether ND 0.00100 1 07/06/2024 18:19 WG2318487 Naphthalene ND 0.00500 1 07/06/2024 18:19 WG2318487 (S) Toluene-d8 129 75.0-131 07/06/2024 18:19 WG2318487 (S) 4-Bromofluorobenzene 98.4 67.0-138 07/06/2024 18:19 WG2318487 (S) 1,2-Dichloroethane-d4 132 J1 70.0-130 07/06/2024 18:19 WG2318487 Semi-Volatile Organic Compounds (GC) by Method 8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.00 1 07/09/2024 15:29 WG2318330 (S) o-Terphenyl 50.2 18.0-148 07/09/2024 15:29 WG2318330 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 12 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 12 of 27 SAMPLE RESULTS - 08 L1751881 SS-9 Collected date/time: 06/26/24 13:00 Total Solids by Method 2540 G-2011 Result Qualifier Dilution Analysis Batch Analyte %date / time Total Solids 88.8 1 07/01/2024 15:40 WG2315147 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/MS) Low Fraction ND 0.500 1 07/06/2024 18:40 WG2318487 Benzene 0.00143 0.00100 1 07/06/2024 18:40 WG2318487 Toluene ND 0.00500 1 07/06/2024 18:40 WG2318487 Ethylbenzene ND 0.00100 1 07/06/2024 18:40 WG2318487 Xylenes, Total ND 0.00300 1 07/06/2024 18:40 WG2318487 Methyl tert-butyl ether ND 0.00100 1 07/06/2024 18:40 WG2318487 Naphthalene ND 0.00500 1 07/06/2024 18:40 WG2318487 (S) Toluene-d8 127 75.0-131 07/06/2024 18:40 WG2318487 (S) 4-Bromofluorobenzene 102 67.0-138 07/06/2024 18:40 WG2318487 (S) 1,2-Dichloroethane-d4 134 J1 70.0-130 07/06/2024 18:40 WG2318487 Semi-Volatile Organic Compounds (GC) by Method 8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/kg mg/kg date / time TPH (GC/FID) High Fraction ND 4.00 1 07/09/2024 17:30 WG2318330 (S) o-Terphenyl 26.1 18.0-148 07/09/2024 17:30 WG2318330 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 13 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 13 of 27 SAMPLE RESULTS - 09 L1751881 GW-1 Collected date/time: 06/26/24 07:40 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time TPH (GC/MS) Low Fraction 6.46 0.500 1 07/04/2024 15:45 WG2317495 Benzene 0.505 0.0500 50 07/10/2024 05:28 WG2320000 Toluene 1.74 0.0500 50 07/10/2024 05:28 WG2320000 Ethylbenzene 0.113 0.00100 1 07/04/2024 15:45 WG2317495 Xylenes, Total 1.08 0.150 50 07/10/2024 05:28 WG2320000 Methyl tert-butyl ether ND 0.00100 1 07/04/2024 15:45 WG2317495 Naphthalene 0.00767 0.00500 1 07/04/2024 15:45 WG2317495 (S) Toluene-d8 103 80.0-120 07/04/2024 15:45 WG2317495 (S) Toluene-d8 111 80.0-120 07/10/2024 05:28 WG2320000 (S) 4-Bromofluorobenzene 107 77.0-126 07/04/2024 15:45 WG2317495 (S) 4-Bromofluorobenzene 104 77.0-126 07/10/2024 05:28 WG2320000 (S) 1,2-Dichloroethane-d4 111 70.0-130 07/04/2024 15:45 WG2317495 (S) 1,2-Dichloroethane-d4 101 70.0-130 07/10/2024 05:28 WG2320000 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time TPH (GC/FID) High Fraction 1.35 0.100 1 07/08/2024 21:38 WG2317396 (S) o-Terphenyl 71.6 52.0-156 07/08/2024 21:38 WG2317396 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 14 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 14 of 27 SAMPLE RESULTS - 10 L1751881 GW-2 Collected date/time: 06/26/24 07:50 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time TPH (GC/MS) Low Fraction 4.88 0.500 1 07/04/2024 16:06 WG2317495 Benzene 0.290 0.0250 25 07/10/2024 05:50 WG2320000 Toluene 1.01 0.0250 25 07/10/2024 05:50 WG2320000 Ethylbenzene 0.0775 0.00100 1 07/04/2024 16:06 WG2317495 Xylenes, Total 0.935 0.0750 25 07/10/2024 05:50 WG2320000 Methyl tert-butyl ether ND 0.00100 1 07/04/2024 16:06 WG2317495 Naphthalene 0.00908 0.00500 1 07/04/2024 16:06 WG2317495 (S) Toluene-d8 103 80.0-120 07/04/2024 16:06 WG2317495 (S) Toluene-d8 110 80.0-120 07/10/2024 05:50 WG2320000 (S) 4-Bromofluorobenzene 107 77.0-126 07/04/2024 16:06 WG2317495 (S) 4-Bromofluorobenzene 102 77.0-126 07/10/2024 05:50 WG2320000 (S) 1,2-Dichloroethane-d4 111 70.0-130 07/04/2024 16:06 WG2317495 (S) 1,2-Dichloroethane-d4 100 70.0-130 07/10/2024 05:50 WG2320000 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 Result Qualifier RDL Dilution Analysis Batch Analyte mg/l mg/l date / time TPH (GC/FID) High Fraction 1.58 0.100 1 07/08/2024 21:58 WG2317396 (S) o-Terphenyl 68.9 52.0-156 07/08/2024 21:58 WG2317396 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 15 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 15 of 27 QUALITY CONTROL SUMMARYWG2315143 Total Solids by Method 2540 G-2011 L1751881-01 Method Blank (MB) (MB) R4088931-1 07/01/24 14:24 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.000 L1751867-01 Original Sample (OS) • Duplicate (DUP) (OS) L1751867-01 07/01/24 14:24 • (DUP) R4088931-3 07/01/24 14:24 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 80.8 80.9 1 0.112 10 Laboratory Control Sample (LCS) (LCS) R4088931-2 07/01/24 14:24 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 16 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 16 of 27 QUALITY CONTROL SUMMARYWG2315147 Total Solids by Method 2540 G-2011 L1751881-02,03,04,05,06,07,08 Method Blank (MB) (MB) R4088946-1 07/01/24 15:40 MB Result MB Qualifier MB MDL MB RDL Analyte %%% Total Solids 0.00300 L1751938-01 Original Sample (OS) • Duplicate (DUP) (OS) L1751938-01 07/01/24 15:40 • (DUP) R4088946-3 07/01/24 15:40 Original Result DUP Result Dilution DUP RPD DUP Qualifier DUP RPD Limits Analyte %%%% Total Solids 71.5 70.1 1 1.98 10 Laboratory Control Sample (LCS) (LCS) R4088946-2 07/01/24 15:40 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte %%%% Total Solids 50.0 50.0 100 90.0-110 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 17 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 17 of 27 QUALITY CONTROL SUMMARYWG2320000 Volatile Organic Compounds (GC/MS) by Method 8260B L1751881-09,10 Method Blank (MB) (MB) R4091994-4 07/09/24 19:22 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l Benzene U 0.0000941 0.00100 Toluene U 0.000278 0.00100 Xylenes, Total U 0.000174 0.00300 (S) Toluene-d8 112 80.0-120 (S) 4-Bromofluorobenzene 102 77.0-126 (S) 1,2-Dichloroethane-d4 97.6 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4091994-1 07/09/24 17:57 • (LCSD) R4091994-2 07/09/24 18:18 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 0.00500 0.00443 0.00462 88.6 92.4 70.0-123 4.20 20 Toluene 0.00500 0.00511 0.00533 102 107 79.0-120 4.21 20 Xylenes, Total 0.0150 0.0151 0.0158 101 105 79.0-123 4.53 20 (S) Toluene-d8 110 108 80.0-120 (S) 4-Bromofluorobenzene 102 102 77.0-126 (S) 1,2-Dichloroethane-d4 102 102 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 18 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 18 of 27 QUALITY CONTROL SUMMARYWG2317495 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1751881-09,10 Method Blank (MB) (MB) R4091724-4 07/04/24 13:00 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l TPH (GC/MS) Low Fraction U 0.108 0.500 Ethylbenzene U 0.000137 0.00100 Methyl tert-butyl ether U 0.000101 0.00100 Naphthalene U 0.00100 0.00500 (S) Toluene-d8 106 80.0-120 (S) 4-Bromofluorobenzene 107 77.0-126 (S) 1,2-Dichloroethane-d4 108 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4091724-1 07/04/24 11:37 • (LCSD) R4091724-2 07/04/24 11:58 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 %%%%% Ethylbenzene 0.00500 0.00532 0.00509 106 102 79.0-123 4.42 20 Methyl tert-butyl ether 0.00500 0.00533 0.00537 107 107 68.0-125 0.748 20 Naphthalene 0.00500 0.00579 0.00483 116 96.6 54.0-135 18.1 20 (S) Toluene-d8 107 106 80.0-120 (S) 4-Bromofluorobenzene 103 103 77.0-126 (S) 1,2-Dichloroethane-d4 110 109 70.0-130 Laboratory Control Sample (LCS) (LCS) R4091724-3 07/04/24 12:18 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/l mg/l %% TPH (GC/MS) Low Fraction 5.00 5.37 107 66.0-132 (S) Toluene-d8 101 80.0-120 (S) 4-Bromofluorobenzene 114 77.0-126 (S) 1,2-Dichloroethane-d4 113 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 19 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 19 of 27 QUALITY CONTROL SUMMARYWG2318487 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1751881-01,02,03,04,05,07,08 Method Blank (MB) (MB) R4092244-4 07/06/24 13:33 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/MS) Low Fraction U 0.183 0.500 Benzene U 0.000375 0.00100 Toluene U 0.00123 0.00500 Ethylbenzene U 0.000300 0.00100 Xylenes, Total U 0.000500 0.00300 Methyl tert-butyl ether U 0.000350 0.00100 Naphthalene U 0.00498 0.00500 (S) Toluene-d8 131 75.0-131 (S) 4-Bromofluorobenzene 105 67.0-138 (S) 1,2-Dichloroethane-d4 120 70.0-130 Laboratory Control Sample (LCS) (LCS) R4092244-1 07/06/24 10:38 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Benzene 0.0250 0.0271 108 70.0-123 Toluene 0.0250 0.0271 108 75.0-121 Ethylbenzene 0.0250 0.0282 113 74.0-126 Xylenes, Total 0.0750 0.0823 110 72.0-127 Methyl tert-butyl ether 0.0250 0.0280 112 66.0-132 Naphthalene 0.0250 0.0244 97.6 59.0-130 (S) Toluene-d8 120 75.0-131 (S) 4-Bromofluorobenzene 101 67.0-138 (S) 1,2-Dichloroethane-d4 129 70.0-130 Laboratory Control Sample (LCS) (LCS) R4092244-2 07/06/24 11:20 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 4.70 94.0 52.0-154 (S) Toluene-d8 119 75.0-131 (S) 4-Bromofluorobenzene 109 67.0-138 (S) 1,2-Dichloroethane-d4 107 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 20 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 20 of 27 QUALITY CONTROL SUMMARYWG2321247 Volatile Organic Compounds (GC/MS) by Method 8260B/8260B/OA1 L1751881-06 Method Blank (MB) (MB) R4092785-3 07/11/24 12:52 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/MS) Low Fraction U 4.58 12.5 Benzene U 0.00938 0.0250 Toluene U 0.0308 0.125 Ethylbenzene U 0.00750 0.0250 Xylenes, Total U 0.0125 0.0750 Methyl tert-butyl ether U 0.00875 0.0250 Naphthalene U 0.125 0.125 (S) Toluene-d8 119 75.0-131 (S) 4-Bromofluorobenzene 102 67.0-138 (S) 1,2-Dichloroethane-d4 105 70.0-130 Laboratory Control Sample (LCS) (LCS) R4092785-1 07/11/24 09:31 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% Benzene 0.0250 0.0262 105 70.0-123 Toluene 0.0250 0.0252 101 75.0-121 Ethylbenzene 0.0250 0.0275 110 74.0-126 Xylenes, Total 0.0750 0.0824 110 72.0-127 Methyl tert-butyl ether 0.0250 0.0277 111 66.0-132 Naphthalene 0.0250 0.0235 94.0 59.0-130 (S) Toluene-d8 119 75.0-131 (S) 4-Bromofluorobenzene 106 67.0-138 (S) 1,2-Dichloroethane-d4 108 70.0-130 Laboratory Control Sample (LCS) (LCS) R4092785-2 07/11/24 11:01 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/MS) Low Fraction 5.00 5.92 118 52.0-154 (S) Toluene-d8 117 75.0-131 (S) 4-Bromofluorobenzene 110 67.0-138 (S) 1,2-Dichloroethane-d4 104 70.0-130 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 21 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 21 of 27 QUALITY CONTROL SUMMARYWG2317396 Semi-Volatile Organic Compounds (GC) by Method 3511/8015 L1751881-09,10 Method Blank (MB) (MB) R4091052-1 07/07/24 22:26 MB Result MB Qualifier MB MDL MB RDL Analyte mg/l mg/l mg/l TPH (GC/FID) High Fraction U 0.0247 0.100 (S) o-Terphenyl 70.0 52.0-156 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R4091052-2 07/07/24 22:47 • (LCSD) R4091052-3 07/07/24 23:07 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 %%%%% TPH (GC/FID) High Fraction 1.50 1.23 1.32 82.0 88.0 50.0-150 7.06 20 (S) o-Terphenyl 70.5 71.5 52.0-156 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 22 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 22 of 27 QUALITY CONTROL SUMMARYWG2318330 Semi-Volatile Organic Compounds (GC) by Method 8015 L1751881-01,02,03,04,05,06,07,08 Method Blank (MB) (MB) R4091944-1 07/09/24 11:02 MB Result MB Qualifier MB MDL MB RDL Analyte mg/kg mg/kg mg/kg TPH (GC/FID) High Fraction U 0.769 4.00 (S) o-Terphenyl 45.8 18.0-148 Laboratory Control Sample (LCS) (LCS) R4091944-2 07/09/24 11:18 Spike Amount LCS Result LCS Rec. Rec. Limits LCS Qualifier Analyte mg/kg mg/kg %% TPH (GC/FID) High Fraction 50.0 30.8 61.6 50.0-150 (S) o-Terphenyl 38.0 18.0-148 L1751993-05 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1751993-05 07/09/24 13:51 • (MS) R4091944-4 07/09/24 14:24 • (MSD) R4091944-3 07/09/24 14:07 Spike Amount Original Result MS Result MSD Result MS Rec. MSD Rec. Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte mg/kg mg/kg mg/kg mg/kg %%%%% TPH (GC/FID) High Fraction 48.9 ND 42.6 42.7 82.7 82.9 1 50.0-150 0.234 20 (S) o-Terphenyl 46.5 50.8 18.0-148 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 23 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 23 of 27 GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Results Disclaimer - Information that may be provided by the customer, and contained within this report, include Permit Limits, Project Name, Sample ID, Sample Matrix, Sample Preservation, Field Blanks, Field Spikes, Field Duplicates, On-Site Data, Sampling Collection Dates/Times, and Sampling Location. Results relate to the accuracy of this information provided, and as the samples are received. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Uncertainty (Radiochemistry)Confidence level of 2 sigma. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J1 Surrogate recovery limits have been exceeded; values are outside upper control limits. 1 Cp 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 24 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 24 of 27 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 2 Tc 3 Ss 4 Cn 5 Sr 6 Qc 7 Gl 8 Al 9 Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/11/24 19:21 25 of 27 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Stantec - 7-11 (Direct)203723864 L1751881 07/12/24 13:45 25 of 27 The analyses presented on this report were performed in accordance with the National Environmental Laboratory Accreditation Program (NELAP) unless noted in the comments, flags, or case narrative. If the report is to be used for regulatory compliance, it should be presented in its entirety, and not be altered. Client Service Contact: 801.262.7299 Stantec Consulting Inc. Attn: Anna Skinner 2890 East Cottonwood Parkway, Suite 300 Salt Lake City, UT 84121 Work Order: 24G0262 Project: Cottonwood Hights Speedway 7/16/2024 Approved By: Mark Broadhead, Project Manager 9632 South 500 West Sandy, Utah 84070 Serving the Intermountain West since 1953 801.262.7299 Main 866.792.0093 Fax www.ChemtechFord.com Page 1 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Stantec Consulting Inc. Anna Skinner 2890 East Cottonwood Parkway, Suite 300 Salt Lake City, UT 84121 PO#: Receipt: Date Reported: Project Name: 203723864 7/3/24 9:54 @ 25.7 °C 7/16/2024 Cottonwood Hights Speedway Sample ID: USC-1 Lab ID: 24G0262-01Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 6/26/24 8:10 Preparation Date/Time Sampled By: Steve Yorgason Minimum Reporting Limit MethodResult Inorganic -7/15/247/15/24ASTM D2487-ModSWUnited Soil Classification [USC] Project Name: Cottonwood Hights Speedway CtF WO#: 24G0262 www.ChemtechFord.com Page 2 of 6Page 2 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Stantec Consulting Inc. Anna Skinner 2890 East Cottonwood Parkway, Suite 300 Salt Lake City, UT 84121 PO#: Receipt: Date Reported: Project Name: 203723864 7/3/24 9:54 @ 25.7 °C 7/16/2024 Cottonwood Hights Speedway Sample ID: USC-2 Lab ID: 24G0262-02Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 6/26/24 10:00 Preparation Date/Time Sampled By: Steve Yorgason Minimum Reporting Limit MethodResult Inorganic -7/15/247/15/24ASTM D2487-ModSCUnited Soil Classification [USC] Project Name: Cottonwood Hights Speedway CtF WO#: 24G0262 www.ChemtechFord.com Page 3 of 6Page 3 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Stantec Consulting Inc. Anna Skinner 2890 East Cottonwood Parkway, Suite 300 Salt Lake City, UT 84121 PO#: Receipt: Date Reported: Project Name: 203723864 7/3/24 9:54 @ 25.7 °C 7/16/2024 Cottonwood Hights Speedway Sample ID: USC-3 Lab ID: 24G0262-03Matrix: Solid Flag(s)Units Analysis Date/Time Date Sampled: 6/26/24 13:00 Preparation Date/Time Sampled By: Steve Yorgason Minimum Reporting Limit MethodResult Inorganic -7/15/247/15/24ASTM D2487-ModSCUnited Soil Classification [USC] Project Name: Cottonwood Hights Speedway CtF WO#: 24G0262 www.ChemtechFord.com Page 4 of 6Page 4 of 6 xx Chemtech-Ford Laboratories Serving the Intermountain West Since 1953 Certificate of Analysis 9632 South 500 West Sandy, UT 84070 O:(801) 262-7299 F: (866) 792-0093 www.ChemtechFord.com Stantec Consulting Inc. Anna Skinner 2890 East Cottonwood Parkway, Suite 300 Salt Lake City, UT 84121 PO#: Receipt: Date Reported: Project Name: 203723864 7/3/24 9:54 @ 25.7 °C 7/16/2024 Cottonwood Hights Speedway Report Footnotes Abbreviations ND = Not detected at the corresponding Minimum Reporting Limit (MRL). 1 mg/L = one milligram per liter or 1 mg/kg = one milligram per kilogram = 1 part per million. 1 ug/L = one microgram per liter or 1 ug/kg = one microgram per kilogram = 1 part per billion. 1 ng/L = one nanogram per liter or 1 ng/kg = one nanogram per kilogram = 1 part per trillion. On calculated parameters, there may be a slight difference between summing the rounded values shown on the report vs the unrounded values used in the calculation. Project Name: Cottonwood Hights Speedway CtF WO#: 24G0262 www.ChemtechFord.com Page 5 of 6Page 5 of 6 Page 6 of 6