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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 - Austin Unit 3Q2023 <br />Drew Feucht <br />Reported:08/28/2023 17:40 <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: B171638 Used client sample: Y - Description: AMW-33, 08/03/2023 11:14 <br />MSBenzene 27.210 70 - 130ND25.000 1092315093-02 ug/L 1 <br />MSD 28.720 5.4 20 70 - 130ND25.000 1152315093-02 ug/L 2 <br />MSBromodichloromethane 25.540 70 - 130ND25.000 1022315093-02 ug/L 1 <br />MSD 27.040 5.7 20 70 - 130ND25.000 1082315093-02 ug/L 2 <br />MSChlorobenzene 24.540 70 - 130ND25.000 98.22315093-02 ug/L 1 <br />MSD 25.590 4.2 20 70 - 130ND25.000 1022315093-02 ug/L 2 <br />MSChloroethane 27.340 70 - 130ND25.000 1092315093-02 ug/L 1 <br />MSD 28.510 4.2 20 70 - 130ND25.000 1142315093-02 ug/L 2 <br />MS1,4-Dichlorobenzene 24.460 70 - 1300.10000 25.000 97.42315093-02 ug/L 1 <br />MSD 25.350 3.6 20 70 - 1300.10000 25.000 1012315093-02 ug/L 2 <br />MS1,1-Dichloroethane 27.280 70 - 130ND25.000 1092315093-02 ug/L 1 <br />MSD 28.880 5.7 20 70 - 130ND25.000 1162315093-02 ug/L 2 <br />MS1,1-Dichloroethene 27.810 70 - 130ND25.000 1112315093-02 ug/L 1 <br />MSD 29.380 5.5 20 70 - 130ND25.000 1182315093-02 ug/L 2 <br />MSToluene 26.150 70 - 130ND25.000 1052315093-02 ug/L 1 <br />MSD 27.190 3.9 20 70 - 130ND25.000 1092315093-02 ug/L 2 <br />MSTrichloroethene 25.900 70 - 130ND25.000 1042315093-02 ug/L 1 <br />MSD 26.680 3.0 20 70 - 130ND25.000 1072315093-02 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.500 75 - 125ND10.000 1052315093-02 ug/L 1 <br />MSD 10.550 0.5 75 - 125ND10.000 1062315093-02 ug/L 2 <br />MSToluene-d8 (Surrogate)10.110 80 - 120ND10.000 1012315093-02 ug/L 1 <br />MSD 10.110 0 80 - 120ND10.000 1012315093-02 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)9.8900 80 - 120ND10.000 98.92315093-02 ug/L 1 <br />MSD 10.060 1.7 80 - 120ND10.000 1012315093-02 ug/L 2 <br />QC Batch ID: B172081 Used client sample: N <br />MSBenzene 26.170 70 - 130ND25.000 1052315652-01 ug/L 3 <br />MSD 27.340 4.4 20 70 - 130ND25.000 1092315652-01 ug/L 4 <br />MSBromodichloromethane 23.810 70 - 130ND25.000 95.22315652-01 ug/L 3 <br />MSD 24.790 4.0 20 70 - 130ND25.000 99.22315652-01 ug/L 4 <br />MSChlorobenzene 23.080 70 - 130ND25.000 92.32315652-01 ug/L 3 <br />MSD 24.010 3.9 20 70 - 130ND25.000 96.02315652-01 ug/L 4 <br />MSChloroethane 28.320 70 - 130ND25.000 1132315652-01 ug/L 3 <br />MSD 29.540 4.2 20 70 - 130ND25.000 1182315652-01 ug/L 4 <br />MS1,4-Dichlorobenzene 23.680 70 - 130ND25.000 94.72315652-01 ug/L 3 <br />MSD 24.560 3.6 20 70 - 130ND25.000 98.22315652-01 ug/L 4 <br />MS1,1-Dichloroethane 25.930 70 - 130ND25.000 1042315652-01 ug/L 3 <br />MSD 27.570 6.1 20 70 - 130ND25.000 1102315652-01 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 51 of 60Report ID: 1001452308