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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 - Precision & Accuracy <br /> Control Limits <br /> Source Source Spike Percent Percent Lab <br /> Constituent Type Sample ID Result Result Added Units RPD Recovery RPD Recovery Quals R# <br /> QC Batch ID: B226641 Used client sample: Y-Description: AMW-57M, 01/28/2026 11:43 <br /> Benzene MS 2601426-02 ND 19.830 25.000 ug/L 79.3 70-130 1 <br /> MSD 2601426-02 ND 20.710 25.000 ug/L 4.3 82.8 20 70-130 2 <br /> Bromodichloromethane MS 2601426-02 ND 21.400 25.000 ug/L 85.6 70-130 1 <br /> MSD 2601426-02 ND 21.740 25.000 ug/L 1.6 87.0 20 70-130 2 <br /> Chlorobenzene MS 2601426-02 ND 22.350 25.000 ug/L 89.4 70-130 1 <br /> MSD 2601426-02 ND 22.910 25.000 ug/L 2.5 91.6 20 70-130 2 <br /> Chloroethane MS 2601426-02 ND 19.590 25.000 ug/L 78.4 70-130 1 <br /> MSD 2601426-02 ND 20.560 25.000 ug/L 4.8 82.2 20 70-130 2 <br /> 1,4-Dichlorobenzene MS 2601426-02 ND 26.270 25.000 ug/L 105 70-130 1 <br /> MSD 2601426-02 ND 26.720 25.000 ug/L 1.7 107 20 70-130 2 <br /> 1,1-Dichloroethane MS 2601426-02 ND 21.250 25.000 ug/L 85.0 70-130 1 <br /> MSD 2601426-02 ND 22.060 25.000 ug/L 3.7 88.2 20 70-130 2 <br /> 1,1-Dichloroethene MS 2601426-02 ND 21.470 25.000 ug/L 85.9 70-130 1 <br /> MSD 2601426-02 ND 22.580 25.000 ug/L 5.0 90.3 20 70-130 2 <br /> Toluene MS 2601426-02 ND 22.340 25.000 ug/L 89.4 70-130 1 <br /> MSD 2601426-02 ND 22.760 25.000 ug/L 1.9 91.0 20 70-130 2 <br /> Trichloroethene MS 2601426-02 ND 21.790 25.000 ug/L 87.2 70-130 1 <br /> MSD 2601426-02 ND 22.210 25.000 ug/L 1.9 88.8 20 70-130 2 <br /> 1,2-Dichloroethane-d4(Surrogate) MS 2601426-02 ND 9.4500 10.000 ug/L 94.5 75-125 1 <br /> MSD 2601426-02 ND 9.4000 10.000 ug/L 0.5 94.0 75-125 2 <br /> Toluene-d8(Surrogate) MS 2601426-02 ND 9.7300 10.000 ug/L 97.3 80-120 1 <br /> MSD 2601426-02 ND 9.7000 10.000 ug/L 0.3 97.0 80-120 2 <br /> 4-Bromofluorobenzene(Surrogate) MS 2601426-02 ND 10.840 10.000 ug/L 108 80-120 1 <br /> MSD 2601426-02 ND 10.530 10.000 ug/L 2.9 105 80-120 2 <br /> QC Batch ID: 13226642 Used client sample: Y- Description: AMW-13, 01/28/2026 15:31 <br /> Benzene MS 2601426-05 ND 22.480 25.000 ug/L 89.9 70-130 3 <br /> MSD 2601426-05 ND 22.330 25.000 ug/L 0.7 89.3 20 70-130 4 <br /> Bromodichloromethane MS 2601426-05 ND 21.710 25.000 ug/L 86.8 70-130 3 <br /> MSD 2601426-05 ND 22.650 25.000 ug/L 4.2 90.6 20 70-130 4 <br /> Chlorobenzene MS 2601426-05 ND 22.510 25.000 ug/L 90.0 70-130 3 <br /> MSD 2601426-05 ND 23.270 25.000 ug/L 3.3 93.1 20 70-130 4 <br /> Chloroethane MS 2601426-05 ND 21.880 25.000 ug/L 87.5 70-130 3 <br /> MSD 2601426-05 ND 21.920 25.000 ug/L 0.2 87.7 20 70-130 4 <br /> 1,4-Dichlorobenzene MS 2601426-05 ND 26.140 25.000 ug/L 105 70-130 3 <br /> MSD 2601426-05 ND 26.350 25.000 ug/L 0.8 105 20 70-130 4 <br /> 1,1-Dichloroethane MS 2601426-05 ND 24.170 25.000 ug/L 96.7 70-130 3 <br /> MSD 2601426-05 ND 23.850 25.000 ug/L 1.3 95.4 20 70-130 4 <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 88 of 98 <br />