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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 30167676.01 <br />Ari Terry <br />Reported:02/28/2024 11:01 <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: B183759 <br />Benzene B183759-BS1 LCS 24.140 25.000 96.6 70 - 130ug/L 1 <br />Bromodichloromethane B183759-BS1 LCS 23.390 25.000 93.6 70 - 130ug/L 1 <br />Chlorobenzene B183759-BS1 LCS 22.880 25.000 91.5 70 - 130ug/L 1 <br />Chloroethane B183759-BS1 LCS 21.500 25.000 86.0 70 - 130ug/L 1 <br />1,4-Dichlorobenzene B183759-BS1 LCS 22.310 25.000 89.2 70 - 130ug/L 1 <br />1,1-Dichloroethane B183759-BS1 LCS 24.460 25.000 97.8 70 - 130ug/L 1 <br />1,1-Dichloroethene B183759-BS1 LCS 24.770 25.000 99.1 70 - 130ug/L 1 <br />Toluene B183759-BS1 LCS 22.400 25.000 89.6 70 - 130ug/L 1 <br />Trichloroethene B183759-BS1 LCS 23.100 25.000 92.4 70 - 130ug/L 1 <br />1,2-Dichloroethane-d4 (Surrogate)B183759-BS1 LCS 10.790 10.000 108 75 - 125ug/L 1 <br />Toluene-d8 (Surrogate)B183759-BS1 LCS 10.390 10.000 104 80 - 120ug/L 1 <br />4-Bromofluorobenzene (Surrogate)B183759-BS1 LCS 10.460 10.000 105 80 - 120ug/L 1 <br />QC Batch ID: B183859 <br />Benzene B183859-BS1 LCS 26.850 25.000 107 70 - 130ug/L 2 <br />Bromodichloromethane B183859-BS1 LCS 24.070 25.000 96.3 70 - 130ug/L 2 <br />Chlorobenzene B183859-BS1 LCS 25.490 25.000 102 70 - 130ug/L 2 <br />Chloroethane B183859-BS1 LCS 23.350 25.000 93.4 70 - 130ug/L 2 <br />1,4-Dichlorobenzene B183859-BS1 LCS 24.270 25.000 97.1 70 - 130ug/L 2 <br />1,1-Dichloroethane B183859-BS1 LCS 27.100 25.000 108 70 - 130ug/L 2 <br />1,1-Dichloroethene B183859-BS1 LCS 28.130 25.000 113 70 - 130ug/L 2 <br />Toluene B183859-BS1 LCS 24.300 25.000 97.2 70 - 130ug/L 2 <br />Trichloroethene B183859-BS1 LCS 24.370 25.000 97.5 70 - 130ug/L 2 <br />1,2-Dichloroethane-d4 (Surrogate)B183859-BS1 LCS 10.520 10.000 105 75 - 125ug/L 2 <br />Toluene-d8 (Surrogate)B183859-BS1 LCS 9.9200 10.000 99.2 80 - 120ug/L 2 <br />4-Bromofluorobenzene (Surrogate)B183859-BS1 LCS 9.9800 10.000 99.8 80 - 120ug/L 2 <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 65 of 97Report ID: 1001492876