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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 - Laboratory Control Sample <br />Constituent <br />Control Limits <br />PercentPercentSpike <br />QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals <br />Volatile Organic Analysis (EPA Method 8260B) <br />Run # <br />Lab <br />QC Batch ID: B201689 <br />Benzene B201689-BS1 LCS 23.440 25.000 93.8 70 - 130ug/L 1 <br />LCSDB201689-BSD1 24.740 25.000 99.0 5.4 70 - 130 20ug/L 2 <br />Bromodichloromethane B201689-BS1 LCS 24.260 25.000 97.0 70 - 130ug/L 1 <br />LCSDB201689-BSD1 26.430 25.000 106 8.6 70 - 130 20ug/L 2 <br />Chlorobenzene B201689-BS1 LCS 22.960 25.000 91.8 70 - 130ug/L 1 <br />LCSDB201689-BSD1 24.600 25.000 98.4 6.9 70 - 130 20ug/L 2 <br />Chloroethane B201689-BS1 LCS 21.430 25.000 85.7 70 - 130ug/L 1 <br />LCSDB201689-BSD1 24.360 25.000 97.4 12.8 70 - 130 20ug/L 2 <br />1,4-Dichlorobenzene B201689-BS1 LCS 23.730 25.000 94.9 70 - 130ug/L 1 <br />LCSDB201689-BSD1 25.080 25.000 100 5.5 70 - 130 20ug/L 2 <br />1,1-Dichloroethane B201689-BS1 LCS 25.020 25.000 100 70 - 130ug/L 1 <br />LCSDB201689-BSD1 25.680 25.000 103 2.6 70 - 130 20ug/L 2 <br />1,1-Dichloroethene B201689-BS1 LCS 23.580 25.000 94.3 70 - 130ug/L 1 <br />LCSDB201689-BSD1 24.850 25.000 99.4 5.2 70 - 130 20ug/L 2 <br />Toluene B201689-BS1 LCS 22.060 25.000 88.2 70 - 130ug/L 1 <br />LCSDB201689-BSD1 24.710 25.000 98.8 11.3 70 - 130 20ug/L 2 <br />Trichloroethene B201689-BS1 LCS 22.660 25.000 90.6 70 - 130ug/L 1 <br />LCSDB201689-BSD1 25.360 25.000 101 11.2 70 - 130 20ug/L 2 <br />1,2-Dichloroethane-d4 (Surrogate)B201689-BS1 LCS 10.910 10.000 109 75 - 125ug/L 1 <br />LCSDB201689-BSD1 10.080 10.000 101 7.9 75 - 125ug/L 2 <br />Toluene-d8 (Surrogate)B201689-BS1 LCS 9.6100 10.000 96.1 80 - 120ug/L 1 <br />LCSDB201689-BSD1 9.8700 10.000 98.7 2.7 80 - 120ug/L 2 <br />4-Bromofluorobenzene (Surrogate)B201689-BS1 LCS 10.150 10.000 102 80 - 120ug/L 1 <br />LCSDB201689-BSD1 10.050 10.000 100 1.0 80 - 120ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B201689-BS1 LCS EPA-8260B MGC MS-V5 111/26/24 11/26/24 09:45 <br /> 2 B201689-BSD1 LCSD EPA-8260B MGC MS-V5 111/26/24 11/26/24 10:09 <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 59 of 71Report ID: 1001554839