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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 />Ari Terry <br />Reported:11/27/2024 11:56 <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: B201530 Used client sample: Y - Description: AMW-12, 11/15/2024 10:43 <br />MSBenzene 23.920 70 - 130ND25.000 95.72418555-01 ug/L 1 <br />MSD 25.320 5.7 20 70 - 130ND25.000 1012418555-01 ug/L 2 <br />MSBromodichloromethane 23.270 70 - 130ND25.000 93.12418555-01 ug/L 1 <br />MSD 24.590 5.5 20 70 - 130ND25.000 98.42418555-01 ug/L 2 <br />MSChlorobenzene 23.160 70 - 130ND25.000 92.62418555-01 ug/L 1 <br />MSD 24.370 5.1 20 70 - 130ND25.000 97.52418555-01 ug/L 2 <br />MSChloroethane 22.030 70 - 130ND25.000 88.12418555-01 ug/L 1 <br />MSD 23.310 5.6 20 70 - 130ND25.000 93.22418555-01 ug/L 2 <br />MS1,4-Dichlorobenzene 23.690 70 - 130ND25.000 94.82418555-01 ug/L 1 <br />MSD 23.780 0.4 20 70 - 130ND25.000 95.12418555-01 ug/L 2 <br />MS1,1-Dichloroethane 23.870 70 - 130ND25.000 95.52418555-01 ug/L 1 <br />MSD 25.290 5.8 20 70 - 130ND25.000 1012418555-01 ug/L 2 <br />MS1,1-Dichloroethene 23.500 70 - 130ND25.000 94.02418555-01 ug/L 1 <br />MSD 24.440 3.9 20 70 - 130ND25.000 97.82418555-01 ug/L 2 <br />MSToluene 23.090 70 - 130ND25.000 92.42418555-01 ug/L 1 <br />MSD 24.430 5.6 20 70 - 130ND25.000 97.72418555-01 ug/L 2 <br />MSTrichloroethene 22.830 70 - 130ND25.000 91.32418555-01 ug/L 1 <br />MSD 23.720 3.8 20 70 - 130ND25.000 94.92418555-01 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.040 75 - 125ND10.000 1002418555-01 ug/L 1 <br />MSD 9.8500 1.9 75 - 125ND10.000 98.52418555-01 ug/L 2 <br />MSToluene-d8 (Surrogate)10.070 80 - 120ND10.000 1012418555-01 ug/L 1 <br />MSD 10.120 0.5 80 - 120ND10.000 1012418555-01 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.300 80 - 120ND10.000 1032418555-01 ug/L 1 <br />MSD 10.090 2.1 80 - 120ND10.000 1012418555-01 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B201530-MS1 MS EPA-8260B TDH MS-V20 111/21/24 11/22/24 01:34 <br /> 2 B201530-MSD1 MSD EPA-8260B TDH MS-V20 111/21/24 11/22/24 02:00 <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 99 of 114Report ID: 1001554123