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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-GWTS <br />Drew Feucht <br />Reported:10/13/2023 8:06 <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: B175195 Used client sample: N <br />MSBenzene 26.760 70 - 130ND25.000 1072318716-01 ug/L 1 <br />MSD 30.790 14.0 20 70 - 130ND25.000 1232318716-01 ug/L 2 <br />MSBromodichloromethane 24.620 70 - 130ND25.000 98.52318716-01 ug/L 1 <br />MSD 27.210 10.0 20 70 - 130ND25.000 1092318716-01 ug/L 2 <br />MSChlorobenzene 24.480 70 - 130ND25.000 97.92318716-01 ug/L 1 <br />MSD 25.590 4.4 20 70 - 130ND25.000 1022318716-01 ug/L 2 <br />MSChloroethane 24.860 70 - 130ND25.000 99.42318716-01 ug/L 1 <br />MSD 29.300 16.4 20 70 - 130ND25.000 1172318716-01 ug/L 2 <br />MS1,4-Dichlorobenzene 24.650 70 - 130ND25.000 98.62318716-01 ug/L 1 <br />MSD 25.820 4.6 20 70 - 130ND25.000 1032318716-01 ug/L 2 <br />MS1,1-Dichloroethane 25.450 70 - 130ND25.000 1022318716-01 ug/L 1 <br />MSD 29.230 13.8 20 70 - 130ND25.000 1172318716-01 ug/L 2 <br />MS1,1-Dichloroethene 26.220 70 - 130ND25.000 1052318716-01 ug/L 1 <br />MSD 30.230 14.2 20 70 - 130ND25.000 1212318716-01 ug/L 2 <br />MSToluene 26.150 70 - 130ND25.000 1052318716-01 ug/L 1 <br />MSD 29.510 12.1 20 70 - 130ND25.000 1182318716-01 ug/L 2 <br />MSTrichloroethene 24.690 70 - 130ND25.000 98.82318716-01 ug/L 1 <br />MSD 27.870 12.1 20 70 - 130ND25.000 1112318716-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.600 75 - 125ND10.000 1062318716-01 ug/L 1 <br />MSD 10.720 1.1 75 - 125ND10.000 1072318716-01 ug/L 2 <br />MSToluene-d8 (Surrogate)9.9000 80 - 120ND10.000 99.02318716-01 ug/L 1 <br />MSD 10.070 1.7 80 - 120ND10.000 1012318716-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.590 80 - 120ND10.000 1062318716-01 ug/L 1 <br />MSD 10.020 5.5 80 - 120ND10.000 1002318716-01 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B175195-MS1 MS EPA-8260B ADC MS-V15 110/04/23 10/04/23 09:51 <br /> 2 B175195-MSD1 MSD EPA-8260B ADC MS-V15 110/04/23 10/04/23 10:15 <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 20 of 25Report ID: 1001462808