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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:12/04/2024 10:08 <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: B201689 Used client sample: Y - Description: AMW-18, 11/19/2024 10:53 <br />MSBenzene 25.640 70 - 130ND25.000 1032418678-02 ug/L 1 <br />MSD 24.980 2.6 20 70 - 130ND25.000 99.92418678-02 ug/L 2 <br />MSBromodichloromethane 27.340 70 - 130ND25.000 1092418678-02 ug/L 1 <br />MSD 26.410 3.5 20 70 - 130ND25.000 1062418678-02 ug/L 2 <br />MSChlorobenzene 25.460 70 - 130ND25.000 1022418678-02 ug/L 1 <br />MSD 23.990 5.9 20 70 - 130ND25.000 96.02418678-02 ug/L 2 <br />MSChloroethane 25.570 70 - 130ND25.000 1022418678-02 ug/L 1 <br />MSD 25.260 1.2 20 70 - 130ND25.000 1012418678-02 ug/L 2 <br />MS1,4-Dichlorobenzene 26.720 70 - 130ND25.000 1072418678-02 ug/L 1 <br />MSD 23.860 11.3 20 70 - 130ND25.000 95.42418678-02 ug/L 2 <br />MS1,1-Dichloroethane 26.900 70 - 130ND25.000 1082418678-02 ug/L 1 <br />MSD 26.060 3.2 20 70 - 130ND25.000 1042418678-02 ug/L 2 <br />MS1,1-Dichloroethene 25.990 70 - 130ND25.000 1042418678-02 ug/L 1 <br />MSD 25.830 0.6 20 70 - 130ND25.000 1032418678-02 ug/L 2 <br />MSToluene 25.630 70 - 130ND25.000 1032418678-02 ug/L 1 <br />MSD 25.140 1.9 20 70 - 130ND25.000 1012418678-02 ug/L 2 <br />MSTrichloroethene 26.660 70 - 130ND25.000 1072418678-02 ug/L 1 <br />MSD 25.500 4.4 20 70 - 130ND25.000 1022418678-02 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.120 75 - 125ND10.000 1012418678-02 ug/L 1 <br />MSD 10.620 4.8 75 - 125ND10.000 1062418678-02 ug/L 2 <br />MSToluene-d8 (Surrogate)9.9600 80 - 120ND10.000 99.62418678-02 ug/L 1 <br />MSD 10.190 2.3 80 - 120ND10.000 1022418678-02 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.230 80 - 120ND10.000 1022418678-02 ug/L 1 <br />MSD 9.9000 3.3 80 - 120ND10.000 99.02418678-02 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B201689-MS1 MS EPA-8260B MGC MS-V5 111/26/24 11/26/24 10:33 <br /> 2 B201689-MSD1 MSD EPA-8260B MGC MS-V5 111/26/24 11/26/24 10:57 <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 60 of 71Report ID: 1001554839