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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 />1Q24 Austin Unit <br />Ari Terry <br />Reported:01/31/2024 12:18 <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: B182437 Used client sample: N <br />MSBenzene 26.580 70 - 130ND25.000 1062401322-02 ug/L 1 <br />MSD 24.560 7.9 20 70 - 130ND25.000 98.22401322-02 ug/L 2 <br />MSBromodichloromethane 26.030 70 - 130ND25.000 1042401322-02 ug/L 1 <br />MSD 25.100 3.6 20 70 - 130ND25.000 1002401322-02 ug/L 2 <br />MSChlorobenzene 26.460 70 - 130ND25.000 1062401322-02 ug/L 1 <br />MSD 24.910 6.0 20 70 - 130ND25.000 99.62401322-02 ug/L 2 <br />MSChloroethane 30.100 70 - 130ND25.000 1202401322-02 ug/L 1 <br />MSD 27.040 10.7 20 70 - 130ND25.000 1082401322-02 ug/L 2 <br />MS1,4-Dichlorobenzene 27.560 70 - 130ND25.000 1102401322-02 ug/L 1 <br />MSD 26.250 4.9 20 70 - 130ND25.000 1052401322-02 ug/L 2 <br />MS1,1-Dichloroethane 25.920 70 - 1300.33000 25.000 1022401322-02 ug/L 1 <br />MSD 23.860 8.3 20 70 - 1300.33000 25.000 94.12401322-02 ug/L 2 <br />MS1,1-Dichloroethene 27.550 70 - 130ND25.000 1102401322-02 ug/L 1 <br />MSD 24.900 10.1 20 70 - 130ND25.000 99.62401322-02 ug/L 2 <br />MSToluene 26.890 70 - 130ND25.000 1082401322-02 ug/L 1 <br />MSD 24.970 7.4 20 70 - 130ND25.000 99.92401322-02 ug/L 2 <br />MSTrichloroethene 26.420 70 - 130ND25.000 1062401322-02 ug/L 1 <br />MSD 24.260 8.5 20 70 - 130ND25.000 97.02401322-02 ug/L 2 <br />MS1,2-Dichloroethane-d4 (Surrogate)10.240 75 - 125ND10.000 1022401322-02 ug/L 1 <br />MSD 10.240 0 75 - 125ND10.000 1022401322-02 ug/L 2 <br />MSToluene-d8 (Surrogate)9.8000 80 - 120ND10.000 98.02401322-02 ug/L 1 <br />MSD 9.7600 0.4 80 - 120ND10.000 97.62401322-02 ug/L 2 <br />MS4-Bromofluorobenzene (Surrogate)10.350 80 - 120ND10.000 1042401322-02 ug/L 1 <br />MSD 10.750 3.8 80 - 120ND10.000 1082401322-02 ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B182437-MS1 MS EPA-8260B ADC MS-V15 101/22/24 01/22/24 21:14 <br /> 2 B182437-MSD1 MSD EPA-8260B ADC MS-V15 101/22/24 01/22/24 21:38 <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 39 of 47Report ID: 1001486470