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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 />30167676.01 <br />Drew Feucht <br />Reported:12/08/2023 8:24 <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: B177849 Used client sample: Y - Description: AMW-40S, 11/02/2023 14:48 <br />MSBenzene 27.700 70 - 130ND25.000 1112320927-01 ug/L 1 <br />MSD 26.980 2.6 20 70 - 130ND25.000 1082320927-01 ug/L 2 <br />MSBromodichloromethane 26.510 70 - 130ND25.000 1062320927-01 ug/L 1 <br />MSD 26.340 0.6 20 70 - 130ND25.000 1052320927-01 ug/L 2 <br />MSChlorobenzene 27.440 70 - 130ND25.000 1102320927-01 ug/L 1 <br />MSD 27.180 1.0 20 70 - 130ND25.000 1092320927-01 ug/L 2 <br />MSChloroethane 27.130 70 - 130ND25.000 1092320927-01 ug/L 1 <br />MSD 26.390 2.8 20 70 - 130ND25.000 1062320927-01 ug/L 2 <br />MS1,4-Dichlorobenzene 26.990 70 - 130ND25.000 1082320927-01 ug/L 1 <br />MSD 26.810 0.7 20 70 - 130ND25.000 1072320927-01 ug/L 2 <br />MS1,1-Dichloroethane 25.300 70 - 130ND25.000 1012320927-01 ug/L 1 <br />MSD 24.620 2.7 20 70 - 130ND25.000 98.52320927-01 ug/L 2 <br />MS1,1-Dichloroethene 27.150 70 - 130ND25.000 1092320927-01 ug/L 1 <br />MSD 26.450 2.6 20 70 - 130ND25.000 1062320927-01 ug/L 2 <br />MSToluene 25.080 70 - 130ND25.000 1002320927-01 ug/L 1 <br />MSD 24.870 0.8 20 70 - 130ND25.000 99.52320927-01 ug/L 2 <br />MSTrichloroethene 25.110 70 - 130ND25.000 1002320927-01 ug/L 1 <br />MSD 25.000 0.4 20 70 - 130ND25.000 1002320927-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.700 75 - 125ND10.000 1072320927-01 ug/L 1 <br />MSD 10.880 1.7 75 - 125ND10.000 1092320927-01 ug/L 2 <br />MSToluene-d8 (Surrogate)10.010 80 - 120ND10.000 1002320927-01 ug/L 1 <br />MSD 10.050 0.4 80 - 120ND10.000 1002320927-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)9.7100 80 - 120ND10.000 97.12320927-01 ug/L 1 <br />MSD 9.8400 1.3 80 - 120ND10.000 98.42320927-01 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B177849-MS1 MS EPA-8260B TDH MS-V20 111/07/23 11/07/23 14:07 <br /> 2 B177849-MSD1 MSD EPA-8260B TDH MS-V20 111/07/23 11/07/23 14:33 <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 23 of 31Report ID: 1001474380