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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 />Forward Landfill 4Q24 Austin Unit <br />Ari Terry <br />Reported:12/18/2024 14:06 <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: B202839 Used client sample: N <br />MSBenzene 24.200 70 - 130ND25.000 96.82419340-06 ug/L 1 <br />MSD 22.950 5.3 20 70 - 130ND25.000 91.82419340-06 ug/L 2 <br />MSBromodichloromethane 24.950 70 - 130ND25.000 99.82419340-06 ug/L 1 <br />MSD 23.710 5.1 20 70 - 130ND25.000 94.82419340-06 ug/L 2 <br />MSChlorobenzene 26.010 70 - 130ND25.000 1042419340-06 ug/L 1 <br />MSD 24.790 4.8 20 70 - 130ND25.000 99.22419340-06 ug/L 2 <br />MSChloroethane 26.670 70 - 130ND25.000 1072419340-06 ug/L 1 <br />MSD 25.090 6.1 20 70 - 130ND25.000 1002419340-06 ug/L 2 <br />MS1,4-Dichlorobenzene 26.080 70 - 130ND25.000 1042419340-06 ug/L 1 <br />MSD 25.280 3.1 20 70 - 130ND25.000 1012419340-06 ug/L 2 <br />MS1,1-Dichloroethane 24.280 70 - 130ND25.000 97.12419340-06 ug/L 1 <br />MSD 23.010 5.4 20 70 - 130ND25.000 92.02419340-06 ug/L 2 <br />MS1,1-Dichloroethene 25.270 70 - 130ND25.000 1012419340-06 ug/L 1 <br />MSD 23.590 6.9 20 70 - 130ND25.000 94.42419340-06 ug/L 2 <br />MSToluene 25.640 70 - 1300.11000 25.000 1022419340-06 ug/L 1 <br />MSD 24.320 5.3 20 70 - 1300.11000 25.000 96.82419340-06 ug/L 2 <br />MSTrichloroethene 27.030 70 - 1301.4300 25.000 1022419340-06 ug/L 1 <br />MSD 25.210 7.0 20 70 - 1301.4300 25.000 95.12419340-06 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)9.3800 75 - 125ND10.000 93.82419340-06 ug/L 1 <br />MSD 9.4600 0.8 75 - 125ND10.000 94.62419340-06 ug/L 2 <br />MSToluene-d8 (Surrogate)10.000 80 - 120ND10.000 1002419340-06 ug/L 1 <br />MSD 9.9100 0.9 80 - 120ND10.000 99.12419340-06 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)9.7300 80 - 120ND10.000 97.32419340-06 ug/L 1 <br />MSD 9.9000 1.7 80 - 120ND10.000 99.02419340-06 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B202839-MS1 MS EPA-8260B TDH MS-V20 112/12/24 12/12/24 15:29 <br /> 2 B202839-MSD1 MSD EPA-8260B TDH MS-V20 112/12/24 12/12/24 15:54 <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 35 of 44Report ID: 1001558598