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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 <br />Ari Terry <br />Reported:02/02/2024 14:37 <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: B182578 Used client sample: Y - Description: AMW-23S, 01/23/2024 10:56 <br />MSBenzene 23.950 70 - 130ND25.000 95.82401469-01 ug/L 1 <br />MSD 24.250 1.2 20 70 - 130ND25.000 97.02401469-01 ug/L 2 <br />MSBromodichloromethane 24.100 70 - 130ND25.000 96.42401469-01 ug/L 1 <br />MSD 24.420 1.3 20 70 - 130ND25.000 97.72401469-01 ug/L 2 <br />MSChlorobenzene 24.280 70 - 130ND25.000 97.12401469-01 ug/L 1 <br />MSD 25.530 5.0 20 70 - 130ND25.000 1022401469-01 ug/L 2 <br />MSChloroethane 27.510 70 - 130ND25.000 1102401469-01 ug/L 1 <br />MSD 27.720 0.8 20 70 - 130ND25.000 1112401469-01 ug/L 2 <br />MS1,4-Dichlorobenzene 26.040 70 - 130ND25.000 1042401469-01 ug/L 1 <br />MSD 27.020 3.7 20 70 - 130ND25.000 1082401469-01 ug/L 2 <br />MS1,1-Dichloroethane 23.090 70 - 130ND25.000 92.42401469-01 ug/L 1 <br />MSD 23.480 1.7 20 70 - 130ND25.000 93.92401469-01 ug/L 2 <br />MS1,1-Dichloroethene 23.710 70 - 130ND25.000 94.82401469-01 ug/L 1 <br />MSD 24.870 4.8 20 70 - 130ND25.000 99.52401469-01 ug/L 2 <br />MSToluene 23.780 70 - 130ND25.000 95.12401469-01 ug/L 1 <br />MSD 24.540 3.1 20 70 - 130ND25.000 98.22401469-01 ug/L 2 <br />MSTrichloroethene 22.990 70 - 130ND25.000 92.02401469-01 ug/L 1 <br />MSD 23.920 4.0 20 70 - 130ND25.000 95.72401469-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.100 75 - 125ND10.000 1012401469-01 ug/L 1 <br />MSD 10.090 0.1 75 - 125ND10.000 1012401469-01 ug/L 2 <br />MSToluene-d8 (Surrogate)9.7500 80 - 120ND10.000 97.52401469-01 ug/L 1 <br />MSD 9.7100 0.4 80 - 120ND10.000 97.12401469-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.360 80 - 120ND10.000 1042401469-01 ug/L 1 <br />MSD 10.310 0.5 80 - 120ND10.000 1032401469-01 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B182578-MS1 MS EPA-8260B ADC MS-V15 101/24/24 01/24/24 21:22 <br /> 2 B182578-MSD1 MSD EPA-8260B ADC MS-V15 101/24/24 01/24/24 21:46 <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 88 of 98Report ID: 1001487114