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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 04/13/2026 19:39 <br /> 4119 Broad Street Suite 210 Project: Forward Landfill-Air Samples <br /> San Luis Obispo,CA 93401 Project Number: 30274343.01 1 Q26 Soil Vapor <br /> Project Manager: Dalia Rumani <br /> Volatile Organic Compounds by GC/MS (EPA Method TO-15) <br /> Quality Control Report - Method Blank Analysis <br /> Constituent QC Sample ID MB Result Units PQL MDL Lab Quals Run# <br /> QC Batch ID: B229888 <br /> Acetone B229888-BLK1 ND ug/m3Air 1.2 0.31 1 <br /> Acrylonitrile B229888-BLK1 ND ug/m3Air 0.43 0.12 1 <br /> Allyl chloride B229888-BLK1 ND ug/m3Air 0.63 0.18 1 <br /> Benzene B229888-BLK1 ND ug/m3Air 0.64 0.16 1 <br /> Benzyl chloride B229888-BLK1 ND ug/m3Air 2.6 0.41 1 <br /> Bromodichloromethane B229888-BLK1 ND ug/m3Air 1.3 0.34 1 <br /> Bromoform B229888-BLK1 ND ug/m3Air 2.1 0.65 1 <br /> Bromomethane B229888-BLK1 ND ug/m3Air 0.78 0.21 1 <br /> 1,3-Butadiene B229888-BLK1 ND ug/m3Air 0.44 0.17 1 <br /> Carbon disulfide B229888-BLK1 ND ug/m3Air 0.62 0.15 1 <br /> Carbon tetrachloride B229888-BLK1 ND ug/m3Air 1.3 0.32 1 <br /> Chlorobenzene B229888-BLK1 ND ug/m3Air 0.92 0.18 1 <br /> Chlorodifluoromethane B229888-BLK1 ND ug/m3Air 0.71 0.29 1 <br /> Chloroethane B229888-BLK1 ND ug/m3Air 0.53 0.19 1 <br /> Chloroform B229888-BLK1 ND ug/m3Air 0.98 0.22 1 <br /> Chloromethane B229888-BLK1 ND ug/m3Air 0.41 0.083 1 <br /> Cyclohexane B229888-BLK1 ND ug/m3Air 0.69 0.10 1 <br /> Dibromochloromethane B229888-BLK1 ND ug/m3Air 1.7 0.46 1 <br /> 1,2-Dibromoethane B229888-BLK1 ND ug/m3Air 1.5 0.39 1 <br /> 1,2-Dichlorobenzene B229888-BLK1 ND ug/m3Air 1.2 0.35 1 <br /> 1,3-Dichlorobenzene B229888-BLK1 ND ug/m3Air 1.2 0.34 1 <br /> 1,4-Dichlorobenzene B229888-BLK1 ND ug/m3Air 1.2 0.44 1 <br /> Dichlorodifluoromethane B229888-BLK1 ND ug/m3Air 0.99 0.24 1 <br /> 1,1-Dichloroethane B229888-BLK1 ND ug/m3Air 0.81 0.16 1 <br /> 1,2-Dichloroethane B229888-BLK1 ND ug/m3Air 0.81 0.19 1 <br /> 1,1-Dichloroethene B229888-BLK1 ND ug/m3Air 0.79 0.17 1 <br /> cis-1,2-Dichloroethene B229888-BLK1 ND ug/m3Air 0.79 0.20 1 <br /> trans-1,2-Dichloroethene B229888-BLK1 ND ug/m3Air 0.79 0.16 1 <br /> 1,2-Dichloropropane B229888-BLK1 ND ug/m3Air 0.92 0.17 1 <br /> cis-1,3-Dichloropropene B229888-BLK1 ND ug/m3Air 0.91 0.30 1 <br /> trans-1,3-Dichloropropene B229888-BLK1 ND ug/m3Air 0.91 0.25 1 <br /> 1,2-Dichloro-1,1,2,2-tetrafluoroethane B229888-BLK1 ND ug/m3Air 1.4 0.28 1 <br /> 1,4-Dioxane B229888-BLK1 ND ug/m3Air 0.72 0.35 1 <br /> Ethanol B229888-BLK1 ND ug/m3Air 0.94 0.21 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: 1001665764 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 15 of 19 <br />