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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/10/2026 15:35 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-COELT <br /> San Luis Obispo,CA 93401 Project Number: 30274343.01 <br /> Project Manager: Dalia Rumani <br /> Volatile Organic Analysis (EPA Method 826013) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals Run# <br /> QC Batch ID: B227436 <br /> Acetone B227436-BLK1 ND ug/L 10 4.6 3 <br /> Acrylonitrile B227436-BLK1 ND ug/L 5.0 1.2 3 <br /> t-Amyl Methyl ether B227436-BLK1 ND ug/L 0.50 0.25 3 <br /> t-Butyl alcohol B227436-BLK1 ND ug/L 10 9.4 3 <br /> Carbon disulfide B227436-BLK1 ND ug/L 1.0 0.38 3 <br /> trans-1,4-Dichloro-2-butene B227436-BLK1 ND ug/L 5.0 1.4 3 <br /> Diisopropyl ether B227436-BLK1 ND ug/L 0.50 0.23 3 <br /> Ethanol B227436-BLK1 ND ug/L 250 50 3 <br /> Ethyl t-butyl ether B227436-BLK1 ND ug/L 0.50 0.18 3 <br /> 2-Hexanone B227436-BLK1 ND ug/L 10 3.4 3 <br /> Methyl ethyl ketone B227436-BLK1 ND ug/L 10 2.5 3 <br /> Methyl iodide B227436-BLK1 ND ug/L 2.0 0.47 3 <br /> Methyl isobutyl ketone B227436-BLK1 ND ug/L 10 2.1 3 <br /> Vinyl acetate B227436-BLK1 ND ug/L 10 1.8 3 <br /> 1,2-Dichloroethane-d4(Surrogate) B227436-BLK1 116 % 75-125 (LCL-UCL) 3 <br /> Toluene-d8(Surrogate) B227436-BLK1 103 % 80-120 (LCL-UCL) 3 <br /> 4-Bromofluorobenzene(Surrogate) B227436-BLK1 90.2 % 80-120 (LCL-UCL) 3 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B227295-BLK1 PB EPA-8260B 02/16/26 02/17/26 00:11 AGB MS-V21 1 <br /> 2 B227365-BLK1 PB EPA-8260B 02/17/26 02/17/26 23:58 AGB MS-V21 1 <br /> 3 B227436-BLK1 PB EPA-8260B 02/18/26 02/18/2612:00 TDH MS-V20 1 <br /> The results in this report apply to the samples analyzed in accordance with the chain of custody document.This analytical report must be reproduced in its entirety. <br /> All results listed in this report are for the exclusive use of the submitting party. Pace Analytical assumes no responsibility for report alteration,separation,detachment or third party interpretation. <br /> Report ID: 1001665034 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 129 of 147 <br />