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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 />RGWTS <br />Drew Feucht <br />Reported:09/19/2023 15:46 <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: B174082 Used client sample: N <br />MSBenzene 26.690 70 - 130ND25.000 1072317748-01 ug/L 1 <br />MSD 26.940 0.9 20 70 - 130ND25.000 1082317748-01 ug/L 2 <br />MSBromodichloromethane 26.550 70 - 1300.31000 25.000 1052317748-01 ug/L 1 <br />MSD 26.750 0.8 20 70 - 1300.31000 25.000 1062317748-01 ug/L 2 <br />MSChlorobenzene 27.420 70 - 130ND25.000 1102317748-01 ug/L 1 <br />MSD 28.340 3.3 20 70 - 130ND25.000 1132317748-01 ug/L 2 <br />MSChloroethane 24.550 70 - 130ND25.000 98.22317748-01 ug/L 1 <br />MSD 24.320 0.9 20 70 - 130ND25.000 97.32317748-01 ug/L 2 <br />MS1,4-Dichlorobenzene 26.320 70 - 130ND25.000 1052317748-01 ug/L 1 <br />MSD 26.510 0.7 20 70 - 130ND25.000 1062317748-01 ug/L 2 <br />MS1,1-Dichloroethane 25.540 70 - 130ND25.000 1022317748-01 ug/L 1 <br />MSD 25.490 0.2 20 70 - 130ND25.000 1022317748-01 ug/L 2 <br />MS1,1-Dichloroethene 27.600 70 - 130ND25.000 1102317748-01 ug/L 1 <br />MSD 27.880 1.0 20 70 - 130ND25.000 1122317748-01 ug/L 2 <br />MSToluene 26.520 70 - 130ND25.000 1062317748-01 ug/L 1 <br />MSD 27.350 3.1 20 70 - 130ND25.000 1092317748-01 ug/L 2 <br />MSTrichloroethene 25.730 70 - 130ND25.000 1032317748-01 ug/L 1 <br />MSD 26.690 3.7 20 70 - 130ND25.000 1072317748-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)11.150 75 - 125ND10.000 1122317748-01 ug/L 1 <br />MSD 10.870 2.5 75 - 125ND10.000 1092317748-01 ug/L 2 <br />MSToluene-d8 (Surrogate)10.110 80 - 120ND10.000 1012317748-01 ug/L 1 <br />MSD 10.170 0.6 80 - 120ND10.000 1022317748-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.690 80 - 120ND10.000 1072317748-01 ug/L 1 <br />MSD 10.720 0.3 80 - 120ND10.000 1072317748-01 ug/L 2 <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 22 of 24Report ID: 1001457009