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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 />30167676.01 1Q24 Austin Unit <br />Drew Feucht <br />Reported:02/09/2024 11:19 <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: B183549 Used client sample: N <br />MSBenzene 24.510 70 - 130ND25.000 98.02401832-08 ug/L 1 <br />MSD 23.250 5.3 20 70 - 130ND25.000 93.02401832-08 ug/L 2 <br />MSBromodichloromethane 24.850 70 - 130ND25.000 99.42401832-08 ug/L 1 <br />MSD 23.370 6.1 20 70 - 130ND25.000 93.52401832-08 ug/L 2 <br />MSChlorobenzene 24.140 70 - 130ND25.000 96.62401832-08 ug/L 1 <br />MSD 21.430 11.9 20 70 - 130ND25.000 85.72401832-08 ug/L 2 <br />MSChloroethane 23.110 70 - 130ND25.000 92.42401832-08 ug/L 1 <br />MSD 21.320 8.1 20 70 - 130ND25.000 85.32401832-08 ug/L 2 <br />MS1,4-Dichlorobenzene 23.710 70 - 130ND25.000 94.82401832-08 ug/L 1 <br />MSD 21.350 10.5 20 70 - 130ND25.000 85.42401832-08 ug/L 2 <br />MS1,1-Dichloroethane 24.430 70 - 130ND25.000 97.72401832-08 ug/L 1 <br />MSD 23.230 5.0 20 70 - 130ND25.000 92.92401832-08 ug/L 2 <br />MS1,1-Dichloroethene 25.540 70 - 130ND25.000 1022401832-08 ug/L 1 <br />MSD 23.040 10.3 20 70 - 130ND25.000 92.22401832-08 ug/L 2 <br />MSToluene 23.960 70 - 130ND25.000 95.82401832-08 ug/L 1 <br />MSD 21.580 10.5 20 70 - 130ND25.000 86.32401832-08 ug/L 2 <br />MSTrichloroethene 24.450 70 - 130ND25.000 97.82401832-08 ug/L 1 <br />MSD 21.760 11.6 20 70 - 130ND25.000 87.02401832-08 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.400 75 - 125ND10.000 1042401832-08 ug/L 1 <br />MSD 10.690 2.8 75 - 125ND10.000 1072401832-08 ug/L 2 <br />MSToluene-d8 (Surrogate)9.8500 80 - 120ND10.000 98.52401832-08 ug/L 1 <br />MSD 9.6700 1.8 80 - 120ND10.000 96.72401832-08 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.140 80 - 120ND10.000 1012401832-08 ug/L 1 <br />MSD 10.030 1.1 80 - 120ND10.000 1002401832-08 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B183549-MS1 MS EPA-8260B ADC MS-V15 102/08/24 02/08/24 09:27 <br /> 2 B183549-MSD1 MSD EPA-8260B ADC MS-V15 102/08/24 02/08/24 09:51 <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 49 of 57Report ID: 1001488545