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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: B227295 <br /> Benzene B227295-BS1 LCS 22.270 25.000 ug/L 89.1 70-130 1 <br /> Bromodichloromethane B227295-BS1 LCS 25.180 25.000 ug/L 101 70-130 1 <br /> Chlorobenzene B227295-BS1 LCS 23.660 25.000 ug/L 94.6 70-130 1 <br /> Chloroethane B227295-BS1 LCS 25.310 25.000 ug/L 101 70-130 1 <br /> 1,4-Dichlorobenzene B227295-BS1 LCS 24.830 25.000 ug/L 99.3 70-130 1 <br /> 1,1-Dichloroethane B227295-BS1 LCS 24.200 25.000 ug/L 96.8 70-130 1 <br /> 1,1-Dichloroethene B227295-BS1 LCS 23.370 25.000 ug/L 93.5 70-130 1 <br /> Toluene B227295-BS1 LCS 23.890 25.000 ug/L 95.6 70-130 1 <br /> Trichloroethene B227295-BS1 LCS 22.620 25.000 ug/L 90.5 70-130 1 <br /> 1,2-Dichloroethane-d4(Surrogate) B227295-BS1 LCS 11.210 10.000 ug/L 112 75-125 1 <br /> Toluene-d8(Surrogate) B227295-BS1 LCS 10.030 10.000 ug/L 100 80-120 1 <br /> 4-Bromofluorobenzene(Surrogate) B227295-BS1 LCS 10.500 10.000 ug/L 105 80-120 1 <br /> QC Batch ID: B227365 <br /> Benzene B227365-BS1 LCS 21.580 25.000 ug/L 86.3 70-130 2 <br /> Bromodichloromethane B227365-BS1 LCS 25.650 25.000 ug/L 103 70-130 2 <br /> Chlorobenzene B227365-BS1 LCS 23.700 25.000 ug/L 94.8 70-130 2 <br /> Chloroethane B227365-BS1 LCS 24.310 25.000 ug/L 97.2 70-130 2 <br /> 1,4-Dichlorobenzene B227365-BS1 LCS 24.540 25.000 ug/L 98.2 70-130 2 <br /> 1,1-Dichloroethane B227365-BS1 LCS 23.810 25.000 ug/L 95.2 70-130 2 <br /> 1,1-Dichloroethene B227365-BS1 LCS 22.720 25.000 ug/L 90.9 70-130 2 <br /> Toluene B227365-BS1 LCS 23.560 25.000 ug/L 94.2 70-130 2 <br /> Trichloroethene B227365-BS1 LCS 24.140 25.000 ug/L 96.6 70-130 2 <br /> 1,2-Dichloroethane-d4(Surrogate) B227365-BS1 LCS 11.640 10.000 ug/L 116 75-125 2 <br /> Toluene-d8(Surrogate) B227365-BS1 LCS 10.030 10.000 ug/L 100 80-120 2 <br /> 4-Bromofluorobenzene(Surrogate) B227365-BS1 LCS 10.380 10.000 ug/L 104 80-120 2 <br /> QC Batch ID: B227436 <br /> Benzene B227436-BS1 LCS 28.610 25.000 ug/L 114 70-130 3 <br /> Bromodichloromethane B227436-BS1 LCS 25.810 25.000 ug/L 103 70-130 3 <br /> Chlorobenzene B227436-BSI LCS 26.580 25.000 ug/L 106 70-130 3 <br /> Chloroethane B227436-BS1 LCS 30.470 25.000 ug/L 122 70-130 3 <br /> 1,4-Dichlorobenzene B227436-BS1 LCS 26.240 25.000 ug/L 105 70-130 3 <br /> 1,1-Dichloroethane B227436-BS1 LCS 27.350 25.000 ug/L 109 70-130 3 <br /> 1,1-Dichloroethene B227436-BS1 LCS 26.960 25.000 ug/L 108 70-130 3 <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 130 of 147 <br />