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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 />30216409.01 3Q24 Forward Unit <br />Drew Feucht <br />Reported:08/22/2024 10:43 <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: B194842 Used client sample: Y - Description: MW-25, 08/09/2024 12:56 <br />MSBenzene 21.830 70 - 130ND25.000 87.32412754-10 ug/L 1 <br />MSD 23.280 6.4 20 70 - 130ND25.000 93.12412754-10 ug/L 2 <br />MSBromodichloromethane 20.870 70 - 130ND25.000 83.52412754-10 ug/L 1 <br />MSD 21.640 3.6 20 70 - 130ND25.000 86.62412754-10 ug/L 2 <br />MSChlorobenzene 19.930 70 - 130ND25.000 79.72412754-10 ug/L 1 <br />MSD 21.620 8.1 20 70 - 130ND25.000 86.52412754-10 ug/L 2 <br />MSChloroethane 22.540 70 - 130ND25.000 90.22412754-10 ug/L 1 <br />MSD 23.300 3.3 20 70 - 130ND25.000 93.22412754-10 ug/L 2 <br />MS1,4-Dichlorobenzene 18.140 70 - 130ND25.000 72.62412754-10 ug/L 1 <br />MSD 19.840 9.0 20 70 - 130ND25.000 79.42412754-10 ug/L 2 <br />MS1,1-Dichloroethane 21.750 70 - 130ND25.000 87.02412754-10 ug/L 1 <br />MSD 22.690 4.2 20 70 - 130ND25.000 90.82412754-10 ug/L 2 <br />MS1,1-Dichloroethene 21.910 70 - 130ND25.000 87.62412754-10 ug/L 1 <br />MSD 23.560 7.3 20 70 - 130ND25.000 94.22412754-10 ug/L 2 <br />MSToluene 20.560 70 - 130ND25.000 82.22412754-10 ug/L 1 <br />MSD 22.480 8.9 20 70 - 130ND25.000 89.92412754-10 ug/L 2 <br />MSTrichloroethene 20.090 70 - 130ND25.000 80.42412754-10 ug/L 1 <br />MSD 21.920 8.7 20 70 - 130ND25.000 87.72412754-10 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)9.8200 75 - 125ND10.000 98.22412754-10 ug/L 1 <br />MSD 9.7300 0.9 75 - 125ND10.000 97.32412754-10 ug/L 2 <br />MSToluene-d8 (Surrogate)9.9500 80 - 120ND10.000 99.52412754-10 ug/L 1 <br />MSD 9.8800 0.7 80 - 120ND10.000 98.82412754-10 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.170 80 - 120ND10.000 1022412754-10 ug/L 1 <br />MSD 10.100 0.7 80 - 120ND10.000 1012412754-10 ug/L 2 <br />QC Batch ID: B194922 Used client sample: N <br />MSBenzene 23.600 70 - 130ND25.000 94.42412743-01 ug/L 3 <br />MSD 23.340 1.1 20 70 - 130ND25.000 93.42412743-01 ug/L 4 <br />MSBromodichloromethane 22.010 70 - 130ND25.000 88.02412743-01 ug/L 3 <br />MSD 21.920 0.4 20 70 - 130ND25.000 87.72412743-01 ug/L 4 <br />MSChlorobenzene 22.050 70 - 130ND25.000 88.22412743-01 ug/L 3 <br />MSD 20.680 6.4 20 70 - 130ND25.000 82.72412743-01 ug/L 4 <br />MSChloroethane 23.790 70 - 130ND25.000 95.22412743-01 ug/L 3 <br />MSD 23.220 2.4 20 70 - 130ND25.000 92.92412743-01 ug/L 4 <br />MS1,4-Dichlorobenzene 20.740 70 - 130ND25.000 83.02412743-01 ug/L 3 <br />MSD 17.770 15.4 20 70 - 130ND25.000 71.12412743-01 ug/L 4 <br />MS1,1-Dichloroethane 23.070 70 - 130ND25.000 92.32412743-01 ug/L 3 <br />MSD 23.150 0.3 20 70 - 130ND25.000 92.62412743-01 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 116 of 140Report ID: 1001531260