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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 />1Q24 Austin Unit 30167676.01 <br />Drew Feucht <br />Reported:02/08/2024 11:53 <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: B183184 Used client sample: Y - Description: AMW-11, 01/29/2024 10:14 <br />MSBenzene 26.440 70 - 130ND25.000 1062401742-01 ug/L 1 <br />MSD 25.260 4.6 20 70 - 130ND25.000 1012401742-01 ug/L 2 <br />MSBromodichloromethane 24.450 70 - 130ND25.000 97.82401742-01 ug/L 1 <br />MSD 23.520 3.9 20 70 - 130ND25.000 94.12401742-01 ug/L 2 <br />MSChlorobenzene 24.530 70 - 130ND25.000 98.12401742-01 ug/L 1 <br />MSD 23.350 4.9 20 70 - 130ND25.000 93.42401742-01 ug/L 2 <br />MSChloroethane 25.880 70 - 130ND25.000 1042401742-01 ug/L 1 <br />MSD 23.680 8.9 20 70 - 130ND25.000 94.72401742-01 ug/L 2 <br />MS1,4-Dichlorobenzene 23.840 70 - 130ND25.000 95.42401742-01 ug/L 1 <br />MSD 22.120 7.5 20 70 - 130ND25.000 88.52401742-01 ug/L 2 <br />MS1,1-Dichloroethane 25.910 70 - 130ND25.000 1042401742-01 ug/L 1 <br />MSD 24.730 4.7 20 70 - 130ND25.000 98.92401742-01 ug/L 2 <br />MS1,1-Dichloroethene 27.680 70 - 130ND25.000 1112401742-01 ug/L 1 <br />MSD 25.650 7.6 20 70 - 130ND25.000 1032401742-01 ug/L 2 <br />MSToluene 24.730 70 - 130ND25.000 98.92401742-01 ug/L 1 <br />MSD 23.740 4.1 20 70 - 130ND25.000 95.02401742-01 ug/L 2 <br />MSTrichloroethene 23.620 70 - 130ND25.000 94.52401742-01 ug/L 1 <br />MSD 22.710 3.9 20 70 - 130ND25.000 90.82401742-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.590 75 - 125ND10.000 1062401742-01 ug/L 1 <br />MSD 10.500 0.9 75 - 125ND10.000 1052401742-01 ug/L 2 <br />MSToluene-d8 (Surrogate)10.080 80 - 120ND10.000 1012401742-01 ug/L 1 <br />MSD 10.130 0.5 80 - 120ND10.000 1012401742-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.510 80 - 120ND10.000 1052401742-01 ug/L 1 <br />MSD 10.410 1.0 80 - 120ND10.000 1042401742-01 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B183184-MS1 MS EPA-8260B TDH MSV-20 102/02/24 02/03/24 01:58 <br /> 2 B183184-MSD1 MSD EPA-8260B TDH MSV-20 102/02/24 02/03/24 02:24 <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 78 of 88Report ID: 1001488242