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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 - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Run# <br /> QC Batch ID: B227436 <br /> Toluene B227436-BS1 LCS 26.050 25.000 ug/L 104 70-130 3 <br /> Trichloroethene B227436-BS1 LCS 25.230 25.000 ug/L 101 70-130 3 <br /> 1,2-Dichloroethane-d4(Surrogate) B227436-BS1 LCS 10.830 10.000 ug/L 108 75-125 3 <br /> Toluene-d8(Surrogate) B227436-BS1 LCS 10.640 10.000 ug/L 106 80-120 3 <br /> 4-Bromofluorobenzene(Surrogate) B227436-BS1 LCS 9.6800 10.000 ug/L 96.8 80-120 3 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B227295-BS1 LCS EPA-8260B 02/16/26 02/17/26 01:02 AGB MS-V21 1 <br /> 2 B227365-BS1 LCS EPA-8260B 02/17/26 02/18/26 00:49 AGB MS-V21 1 <br /> 3 B227436-BS1 LCS EPA-8260B 02/18/26 02/18/2612:50 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 131 of 147 <br />