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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 />Drew Feucht <br />Reported:12/03/2024 18:03 <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: B201923 Used client sample: N <br />MS1,1-Dichloroethene 25.690 70 - 130ND25.000 1032418821-01 ug/L 3 <br />MSD 25.680 0.0 20 70 - 130ND25.000 1032418821-01 ug/L 4 <br />MSToluene 25.130 70 - 130ND25.000 1012418821-01 ug/L 3 <br />MSD 24.880 1.0 20 70 - 130ND25.000 99.52418821-01 ug/L 4 <br />MSTrichloroethene 25.450 70 - 130ND25.000 1022418821-01 ug/L 3 <br />MSD 25.480 0.1 20 70 - 130ND25.000 1022418821-01 ug/L 4 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.940 75 - 125ND10.000 1092418821-01 ug/L 3 <br />MSD 10.600 3.2 75 - 125ND10.000 1062418821-01 ug/L 4 <br />MSToluene-d8 (Surrogate)10.100 80 - 120ND10.000 1012418821-01 ug/L 3 <br />MSD 10.260 1.6 80 - 120ND10.000 1032418821-01 ug/L 4 <br />MS4-Bromofluorobenzene <br />(Surrogate) <br />10.820 80 - 120ND10.000 1082418821-01 ug/L 3 <br />MSD 13.750 23.9 80 - 120ND10.000 138 S092418821-01 ug/L 4 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B201921-MS1 MS EPA-8260B MGC MS-V5 112/01/24 12/02/24 03:15 <br /> 2 B201921-MSD1 MSD EPA-8260B MGC MS-V5 112/01/24 12/02/24 03:39 <br /> 3 B201923-MS1 MS EPA-8260B MGC MS-V5 112/02/24 12/02/24 15:13 <br /> 4 B201923-MSD1 MSD EPA-8260B MGC MS-V5 112/02/24 12/02/24 15:37 <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 70 of 85Report ID: 1001554796