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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-COELT <br />30216409.01 4Q24 Austin Unit <br />Ari Terry <br />Reported:12/11/2024 16:35 <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: B201597 Used client sample: N <br />MS1,1-Dichloroethene 22.710 70 - 130ND25.000 90.82419115-06 ug/L 3 <br />MSD 23.620 3.9 20 70 - 130ND25.000 94.52419115-06 ug/L 4 <br />MSToluene 23.510 70 - 130ND25.000 94.02419115-06 ug/L 3 <br />MSD 24.150 2.7 20 70 - 130ND25.000 96.62419115-06 ug/L 4 <br />MSTrichloroethene 23.000 70 - 130ND25.000 92.02419115-06 ug/L 3 <br />MSD 23.740 3.2 20 70 - 130ND25.000 95.02419115-06 ug/L 4 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.000 75 - 125ND10.000 1002419115-06 ug/L 3 <br />MSD 10.050 0.5 75 - 125ND10.000 1002419115-06 ug/L 4 <br />MSToluene-d8 (Surrogate)9.9700 80 - 120ND10.000 99.72419115-06 ug/L 3 <br />MSD 9.9000 0.7 80 - 120ND10.000 99.02419115-06 ug/L 4 <br />MS4-Bromofluorobenzene (Surrogate)10.370 80 - 120ND10.000 1042419115-06 ug/L 3 <br />MSD 10.120 2.4 80 - 120ND10.000 1012419115-06 ug/L 4 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B201596-MS1 MS EPA-8260B TDH MS-V20 112/03/24 12/03/24 15:52 <br /> 2 B201596-MSD1 MSD EPA-8260B TDH MS-V20 112/03/24 12/03/24 16:17 <br /> 3 B201597-MS1 MS EPA-8260B TDH MS-V20 112/03/24 12/04/24 14:47 <br /> 4 B201597-MSD1 MSD EPA-8260B TDH MS-V20 112/03/24 12/04/24 15:12 <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 158 of 170Report ID: 1001557016