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Arcadis- SLO <br />4119 Broad Street Suite 210 <br />San Luis Obispo, CA 93401 <br />Project: <br />Project Number: <br />Project Manager: <br />Forward Landfill-COELT <br />30216409.01/4Qtr Austin Unit <br />Ari Terry <br />Reported:01/02/2025 10:17 <br />Quality Control Report - Method Blank Analysis <br />Constituent QC Sample ID MB Result Units Lab Quals <br />Volatile Organic Analysis (EPA Method 8260B) <br />Run #MDLPQL <br />QC Batch ID: B201404 <br />Ethyl methacrylate B201404-BLK1 4.0NDug/L 0.97 3 <br />Ethyl t-butyl ether B201404-BLK1 0.50NDug/L 0.18 3 <br />2-Hexanone B201404-BLK1 10NDug/L 3.4 3 <br />Isobutanol B201404-BLK1 20NDug/L 7.7 3 <br />Methacrylonitrile B201404-BLK1 10NDug/L 1.7 3 <br />Methyl ethyl ketone B201404-BLK1 10NDug/L 2.5 3 <br />Methyl iodide B201404-BLK1 2.0NDug/L 0.47 3 <br />Methyl isobutyl ketone B201404-BLK1 10NDug/L 2.1 3 <br />Propionitrile B201404-BLK1 20NDug/L 4.2 3 <br />Vinyl acetate B201404-BLK1 10NDug/L 1.8 3 <br />1,2-Dichloroethane-d4 (Surrogate)B201404-BLK1 87.8 %75 - 125 (LCL - UCL) 3 <br />Toluene-d8 (Surrogate)B201404-BLK1 97.7 %80 - 120 (LCL - UCL) 3 <br />4-Bromofluorobenzene (Surrogate)B201404-BLK1 92.6 %80 - 120 (LCL - UCL) 3 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B201353-BLK1 PB EPA-8260B AGB MS-V21 111/18/24 11/18/24 13:03 <br /> 2 B201399-BLK1 PB EPA-8260B TDH MS-V20 111/19/24 11/20/24 00:38 <br /> 3 B201404-BLK1 PB EPA-8260B AGB MS-V21 111/19/24 11/19/24 11:37 <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 />4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 95 of 108Report ID: 1001561256