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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 4Q24 Austin Unit <br />Ari Terry <br />Reported:12/11/2024 16:35 <br />Quality Control Report - Precision & Accuracy <br />Constituent Sample IDType Result Result Added Units RPD Recovery RPD Recovery Quals <br />Source Spike Percent Percent <br />Control Limits <br />Volatile Organic Analysis (EPA Method 8260B) <br />Source Lab <br />R# <br />QC Batch ID: B201596 Used client sample: Y - Description: AMW-60M, 11/22/2024 07:56 <br />MSBenzene 30.480 70 - 130ND25.000 1222418916-01 ug/L 1 <br />MSD 29.990 1.6 20 70 - 130ND25.000 1202418916-01 ug/L 2 <br />MSBromodichloromethane 26.180 70 - 130ND25.000 1052418916-01 ug/L 1 <br />MSD 24.830 5.3 20 70 - 130ND25.000 99.32418916-01 ug/L 2 <br />MSChlorobenzene 26.670 70 - 130ND25.000 1072418916-01 ug/L 1 <br />MSD 25.800 3.3 20 70 - 130ND25.000 1032418916-01 ug/L 2 <br />MSChloroethane 28.150 70 - 130ND25.000 1132418916-01 ug/L 1 <br />MSD 27.590 2.0 20 70 - 130ND25.000 1102418916-01 ug/L 2 <br />MS1,4-Dichlorobenzene 26.800 70 - 130ND25.000 1072418916-01 ug/L 1 <br />MSD 26.070 2.8 20 70 - 130ND25.000 1042418916-01 ug/L 2 <br />MS1,1-Dichloroethane 31.110 70 - 1300.74000 25.000 1212418916-01 ug/L 1 <br />MSD 30.550 1.8 20 70 - 1300.74000 25.000 1192418916-01 ug/L 2 <br />MS1,1-Dichloroethene 30.680 70 - 1300.43000 25.000 1212418916-01 ug/L 1 <br />MSD 29.920 2.5 20 70 - 1300.43000 25.000 1182418916-01 ug/L 2 <br />MSToluene 27.180 70 - 1301.0000 25.000 1052418916-01 ug/L 1 <br />MSD 26.070 4.2 20 70 - 1301.0000 25.000 1002418916-01 ug/L 2 <br />MSTrichloroethene 31.680 70 - 1305.7700 25.000 1042418916-01 ug/L 1 <br />MSD 30.400 4.1 20 70 - 1305.7700 25.000 98.52418916-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)11.870 75 - 125ND10.000 1192418916-01 ug/L 1 <br />MSD 12.180 2.6 75 - 125ND10.000 1222418916-01 ug/L 2 <br />MSToluene-d8 (Surrogate)10.230 80 - 120ND10.000 1022418916-01 ug/L 1 <br />MSD 10.330 1.0 80 - 120ND10.000 1032418916-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.210 80 - 120ND10.000 1022418916-01 ug/L 1 <br />MSD 10.440 2.2 80 - 120ND10.000 1042418916-01 ug/L 2 <br />QC Batch ID: B201597 Used client sample: N <br />MSBenzene 22.970 70 - 130ND25.000 91.92419115-06 ug/L 3 <br />MSD 23.760 3.4 20 70 - 130ND25.000 95.02419115-06 ug/L 4 <br />MSBromodichloromethane 22.880 70 - 130ND25.000 91.52419115-06 ug/L 3 <br />MSD 23.370 2.1 20 70 - 130ND25.000 93.52419115-06 ug/L 4 <br />MSChlorobenzene 23.830 70 - 130ND25.000 95.32419115-06 ug/L 3 <br />MSD 24.280 1.9 20 70 - 130ND25.000 97.12419115-06 ug/L 4 <br />MSChloroethane 21.220 70 - 130ND25.000 84.92419115-06 ug/L 3 <br />MSD 22.020 3.7 20 70 - 130ND25.000 88.12419115-06 ug/L 4 <br />MS1,4-Dichlorobenzene 26.580 70 - 130ND25.000 1062419115-06 ug/L 3 <br />MSD 27.450 3.2 20 70 - 130ND25.000 1102419115-06 ug/L 4 <br />MS1,1-Dichloroethane 22.600 70 - 130ND25.000 90.42419115-06 ug/L 3 <br />MSD 23.580 4.2 20 70 - 130ND25.000 94.32419115-06 ug/L 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 />4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 157 of 170Report ID: 1001557016