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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 GWTS <br />Drew Feucht <br />Reported:12/19/2023 12:39 <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: B180132 Used client sample: N <br />MSBenzene 24.460 70 - 130ND25.000 97.82323142-01 ug/L 1 <br />MSD 22.610 7.9 20 70 - 130ND25.000 90.42323142-01 ug/L 2 <br />MSBromodichloromethane 25.410 70 - 130ND25.000 1022323142-01 ug/L 1 <br />MSD 25.810 1.6 20 70 - 130ND25.000 1032323142-01 ug/L 2 <br />MSChlorobenzene 22.780 70 - 130ND25.000 91.12323142-01 ug/L 1 <br />MSD 27.110 17.4 20 70 - 130ND25.000 1082323142-01 ug/L 2 <br />MSChloroethane 27.020 70 - 130ND25.000 1082323142-01 ug/L 1 <br />MSD 24.670 9.1 20 70 - 130ND25.000 98.72323142-01 ug/L 2 <br />MS1,4-Dichlorobenzene 17.710 70 - 130ND25.000 70.82323142-01 ug/L 1 <br />MSD 21.640 20.0 20 70 - 130ND25.000 86.62323142-01 ug/L 2 <br />MS1,1-Dichloroethane 22.800 70 - 130ND25.000 91.22323142-01 ug/L 1 <br />MSD 21.430 6.2 20 70 - 130ND25.000 85.72323142-01 ug/L 2 <br />MS1,1-Dichloroethene 23.300 70 - 130ND25.000 93.22323142-01 ug/L 1 <br />MSD 21.450 8.3 20 70 - 130ND25.000 85.82323142-01 ug/L 2 <br />MSToluene 23.690 70 - 130ND25.000 94.82323142-01 ug/L 1 <br />MSD 27.690 15.6 20 70 - 130ND25.000 1112323142-01 ug/L 2 <br />MSTrichloroethene 24.380 70 - 130ND25.000 97.52323142-01 ug/L 1 <br />MSD 24.540 0.7 20 70 - 130ND25.000 98.22323142-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)9.6200 75 - 125ND10.000 96.22323142-01 ug/L 1 <br />MSD 10.200 5.9 75 - 125ND10.000 1022323142-01 ug/L 2 <br />MSToluene-d8 (Surrogate)9.6400 80 - 120ND10.000 96.42323142-01 ug/L 1 <br />MSD 10.890 12.2 80 - 120ND10.000 1092323142-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)9.6500 80 - 120ND10.000 96.52323142-01 ug/L 1 <br />MSD 9.7200 0.7 80 - 120ND10.000 97.22323142-01 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: 1001477432