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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 />4Q24 Forward Unit <br />Ari Terry <br />Reported:12/19/2024 17:53 <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: B203002 Used client sample: N <br />MSBenzene 28.890 70 - 130ND25.000 1162419641-01 ug/L 1 <br />MSD 26.010 10.5 20 70 - 130ND25.000 1042419641-01 ug/L 2 <br />MSBromodichloromethane 27.180 70 - 130ND25.000 1092419641-01 ug/L 1 <br />MSD 24.390 10.8 20 70 - 130ND25.000 97.62419641-01 ug/L 2 <br />MSChlorobenzene 25.890 70 - 130ND25.000 1042419641-01 ug/L 1 <br />MSD 23.200 11.0 20 70 - 130ND25.000 92.82419641-01 ug/L 2 <br />MSChloroethane 33.010 70 - 130ND25.000 132 Q032419641-01 ug/L 1 <br />MSD 29.170 12.4 20 70 - 130ND25.000 1172419641-01 ug/L 2 <br />MS1,4-Dichlorobenzene 24.950 70 - 130ND25.000 99.82419641-01 ug/L 1 <br />MSD 22.390 10.8 20 70 - 130ND25.000 89.62419641-01 ug/L 2 <br />MS1,1-Dichloroethane 32.130 70 - 130ND25.000 1292419641-01 ug/L 1 <br />MSD 29.070 10.0 20 70 - 130ND25.000 1162419641-01 ug/L 2 <br />MS1,1-Dichloroethene 31.720 70 - 130ND25.000 1272419641-01 ug/L 1 <br />MSD 28.650 10.2 20 70 - 130ND25.000 1152419641-01 ug/L 2 <br />MSToluene 25.060 70 - 130ND25.000 1002419641-01 ug/L 1 <br />MSD 22.330 11.5 20 70 - 130ND25.000 89.32419641-01 ug/L 2 <br />MSTrichloroethene 26.120 70 - 130ND25.000 1042419641-01 ug/L 1 <br />MSD 23.510 10.5 20 70 - 130ND25.000 94.02419641-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)11.900 75 - 125ND10.000 1192419641-01 ug/L 1 <br />MSD 12.130 1.9 75 - 125ND10.000 1212419641-01 ug/L 2 <br />MSToluene-d8 (Surrogate)9.9200 80 - 120ND10.000 99.22419641-01 ug/L 1 <br />MSD 9.8000 1.2 80 - 120ND10.000 98.02419641-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.020 80 - 120ND10.000 1002419641-01 ug/L 1 <br />MSD 10.070 0.5 80 - 120ND10.000 1012419641-01 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B203002-MS1 MS EPA-8260B MGC MS-V5 112/15/24 12/16/24 14:15 <br /> 2 B203002-MSD1 MSD EPA-8260B MGC MS-V5 112/15/24 12/16/24 14:39 <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 31 of 36Report ID: 1001559087