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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 30167676.01 <br />Ari Terry <br />Reported:02/15/2024 17:00 <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: B182999 Used client sample: Y - Description: AMW-37, 01/25/2024 15:36 <br />MS1,1-Dichloroethene 24.690 70 - 130ND25.000 98.82401640-13 ug/L 3 <br />MSD 23.470 5.1 20 70 - 130ND25.000 93.92401640-13 ug/L 4 <br />MSToluene 25.200 70 - 130ND25.000 1012401640-13 ug/L 3 <br />MSD 24.490 2.9 20 70 - 130ND25.000 98.02401640-13 ug/L 4 <br />MSTrichloroethene 24.690 70 - 130ND25.000 98.82401640-13 ug/L 3 <br />MSD 23.810 3.6 20 70 - 130ND25.000 95.22401640-13 ug/L 4 <br />MS1,2-Dichloroethane-d4 (Surrogate)9.2600 75 - 125ND10.000 92.62401640-13 ug/L 3 <br />MSD 9.0000 2.8 75 - 125ND10.000 90.02401640-13 ug/L 4 <br />MSToluene-d8 (Surrogate)9.8100 80 - 120ND10.000 98.12401640-13 ug/L 3 <br />MSD 9.8700 0.6 80 - 120ND10.000 98.72401640-13 ug/L 4 <br />MS4-Bromofluorobenzene (Surrogate)10.470 80 - 120ND10.000 1052401640-13 ug/L 3 <br />MSD 10.320 1.4 80 - 120ND10.000 1032401640-13 ug/L 4 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B182914-MS1 MS EPA-8260B ADC MS-V15 101/30/24 01/30/24 10:39 <br /> 2 B182914-MSD1 MSD EPA-8260B ADC MS-V15 101/30/24 01/30/24 11:03 <br /> 3 B182999-MS1 MS EPA-8260B ADC MS-V15 101/31/24 01/31/24 11:10 <br /> 4 B182999-MSD1 MSD EPA-8260B ADC MS-V15 101/31/24 01/31/24 11:34 <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 86 of 114Report ID: 1001490133