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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 <br />Forward Landfill 30167676.01 <br />Ari Terry <br />Reported:02/15/2024 17:00 <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: B182914 Used client sample: Y - Description: AMW-13B, 01/25/2024 10:34 <br />MSBenzene 26.960 70 - 130ND25.000 1082401640-01 ug/L 1 <br />MSD 23.940 11.9 20 70 - 130ND25.000 95.82401640-01 ug/L 2 <br />MSBromodichloromethane 25.090 70 - 130ND25.000 1002401640-01 ug/L 1 <br />MSD 24.780 1.2 20 70 - 130ND25.000 99.12401640-01 ug/L 2 <br />MSChlorobenzene 25.710 70 - 130ND25.000 1032401640-01 ug/L 1 <br />MSD 24.590 4.5 20 70 - 130ND25.000 98.42401640-01 ug/L 2 <br />MSChloroethane 31.820 70 - 130ND25.000 1272401640-01 ug/L 1 <br />MSD 28.090 12.5 20 70 - 130ND25.000 1122401640-01 ug/L 2 <br />MS1,4-Dichlorobenzene 26.890 70 - 130ND25.000 1082401640-01 ug/L 1 <br />MSD 26.100 3.0 20 70 - 130ND25.000 1042401640-01 ug/L 2 <br />MS1,1-Dichloroethane 25.510 70 - 130ND25.000 1022401640-01 ug/L 1 <br />MSD 22.670 11.8 20 70 - 130ND25.000 90.72401640-01 ug/L 2 <br />MS1,1-Dichloroethene 28.370 70 - 130ND25.000 1132401640-01 ug/L 1 <br />MSD 24.000 16.7 20 70 - 130ND25.000 96.02401640-01 ug/L 2 <br />MSToluene 26.730 70 - 130ND25.000 1072401640-01 ug/L 1 <br />MSD 24.690 7.9 20 70 - 130ND25.000 98.82401640-01 ug/L 2 <br />MSTrichloroethene 25.880 70 - 130ND25.000 1042401640-01 ug/L 1 <br />MSD 23.980 7.6 20 70 - 130ND25.000 95.92401640-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.470 75 - 125ND10.000 1052401640-01 ug/L 1 <br />MSD 9.4700 10.0 75 - 125ND10.000 94.72401640-01 ug/L 2 <br />MSToluene-d8 (Surrogate)10.050 80 - 120ND10.000 1002401640-01 ug/L 1 <br />MSD 9.8900 1.6 80 - 120ND10.000 98.92401640-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.400 80 - 120ND10.000 1042401640-01 ug/L 1 <br />MSD 10.380 0.2 80 - 120ND10.000 1042401640-01 ug/L 2 <br />QC Batch ID: B182999 Used client sample: Y - Description: AMW-37, 01/25/2024 15:36 <br />MSBenzene 24.240 70 - 130ND25.000 97.02401640-13 ug/L 3 <br />MSD 23.240 4.2 20 70 - 130ND25.000 93.02401640-13 ug/L 4 <br />MSBromodichloromethane 24.710 70 - 130ND25.000 98.82401640-13 ug/L 3 <br />MSD 24.280 1.8 20 70 - 130ND25.000 97.12401640-13 ug/L 4 <br />MSChlorobenzene 25.530 70 - 130ND25.000 1022401640-13 ug/L 3 <br />MSD 24.420 4.4 20 70 - 130ND25.000 97.72401640-13 ug/L 4 <br />MSChloroethane 29.150 70 - 130ND25.000 1172401640-13 ug/L 3 <br />MSD 26.690 8.8 20 70 - 130ND25.000 1072401640-13 ug/L 4 <br />MS1,4-Dichlorobenzene 27.990 70 - 130ND25.000 1122401640-13 ug/L 3 <br />MSD 26.440 5.7 20 70 - 130ND25.000 1062401640-13 ug/L 4 <br />MS1,1-Dichloroethane 22.890 70 - 130ND25.000 91.62401640-13 ug/L 3 <br />MSD 22.000 4.0 20 70 - 130ND25.000 88.02401640-13 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 85 of 114Report ID: 1001490133