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C <br /> ace Analytical <br /> ENVIRONMENTAL SCIENCES <br /> Arcadis-SLO Reported: 02/13/2026 16:34 <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: B226641 <br /> Benzene B226641-BSI LCS 19.940 25.000 ug/L 79.8 70-130 1 <br /> Bromodichloromethane B226641-BS1 LCS 21.120 25.000 ug/L 84.5 70-130 1 <br /> Chlorobenzene B226641-BS1 LCS 22.030 25.000 ug/L 88.1 70-130 1 <br /> Chloroethane B226641-BS1 LCS 19.510 25.000 ug/L 78.0 70-130 1 <br /> 1,4-Dichlorobenzene B226641-BS1 LCS 25.690 25.000 ug/L 103 70-130 1 <br /> 1,1-Dichloroethane B226641-BS1 LCS 21.080 25.000 ug/L 84.3 70-130 1 <br /> 1,1-Dichloroethene B226641-BS1 LCS 20.870 25.000 ug/L 83.5 70-130 1 <br /> Toluene B226641-BS1 LCS 22.240 25.000 ug/L 89.0 70-130 1 <br /> Trichloroethene B226641-BS1 LCS 22.030 25.000 ug/L 88.1 70-130 1 <br /> 1,2-Dichloroethane-d4(Surrogate) B226641-BS1 LCS 9.2000 10.000 ug/L 92.0 75-125 1 <br /> Toluene-d8(Surrogate) B226641-BS1 LCS 9.8300 10.000 ug/L 98.3 80-120 1 <br /> 4-Bromofluorobenzene(Surrogate) B226641-BS1 LCS 10.800 10.000 ug/L 108 80-120 1 <br /> QC Batch ID: B226642 <br /> Benzene B226642-BS1 LCS 23.980 25.000 ug/L 95.9 70-130 2 <br /> Bromodichloromethane B226642-BSI LCS 23.840 25.000 ug/L 95.4 70-130 2 <br /> Chlorobenzene B226642-BS1 LCS 24.680 25.000 ug/L 98.7 70-130 2 <br /> Chloroethane B226642-BS1 LCS 23.490 25.000 ug/L 94.0 70-130 2 <br /> 1,4-Dichlorobenzene B226642-BS1 LCS 27.340 25.000 ug/L 109 70-130 2 <br /> 1,1-Dichloroethane B226642-BS1 LCS 25.370 25.000 ug/L 101 70-130 2 <br /> 1,1-Dichloroethene B226642-BS1 LCS 25.200 25.000 ug/L 101 70-130 2 <br /> Toluene B226642-BS1 LCS 24.920 25.000 ug/L 99.7 70-130 2 <br /> Trichloroethene B226642-BS1 LCS 25.700 25.000 ug/L 103 70-130 2 <br /> 1,2-Dichloroethane-d4(Surrogate) B226642-BS1 LCS 10.310 10.000 ug/L 103 75-125 2 <br /> Toluene-d8(Surrogate) B226642-BS1 LCS 9.7200 10.000 ug/L 97.2 80-120 2 <br /> 4-Bromofluorobenzene(Surrogate) B226642-BS1 LCS 10.560 10.000 ug/L 106 80-120 2 <br /> Run <br /> Run# QC Sample ID QC Type Method Prep Date Date Time Analyst Instrument Dilution <br /> 1 B226641-BS1 LCS EPA-8260B 02/04/26 02/04/2612:33 AGB MS-V21 1 <br /> 2 B226642-BS1 LCS EPA-8260B 02/04/26 02/05/26 00:48 AGB MS-V21 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: 1001653944 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.pacelabs.com Page 87 of 98 <br />