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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:12/11/2024 16:35 <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: B201596 <br />Benzene B201596-BS1 LCS 30.370 25.000 121 70 - 130ug/L 1 <br />Bromodichloromethane B201596-BS1 LCS 26.490 25.000 106 70 - 130ug/L 1 <br />Chlorobenzene B201596-BS1 LCS 27.110 25.000 108 70 - 130ug/L 1 <br />Chloroethane B201596-BS1 LCS 28.350 25.000 113 70 - 130ug/L 1 <br />1,4-Dichlorobenzene B201596-BS1 LCS 26.530 25.000 106 70 - 130ug/L 1 <br />1,1-Dichloroethane B201596-BS1 LCS 30.490 25.000 122 70 - 130ug/L 1 <br />1,1-Dichloroethene B201596-BS1 LCS 30.360 25.000 121 70 - 130ug/L 1 <br />Toluene B201596-BS1 LCS 26.860 25.000 107 70 - 130ug/L 1 <br />Trichloroethene B201596-BS1 LCS 26.450 25.000 106 70 - 130ug/L 1 <br />1,2-Dichloroethane-d4 (Surrogate)B201596-BS1 LCS 11.510 10.000 115 75 - 125ug/L 1 <br />Toluene-d8 (Surrogate)B201596-BS1 LCS 10.430 10.000 104 80 - 120ug/L 1 <br />4-Bromofluorobenzene (Surrogate)B201596-BS1 LCS 10.340 10.000 103 80 - 120ug/L 1 <br />QC Batch ID: B201597 <br />Benzene B201597-BS1 LCS 25.280 25.000 101 70 - 130ug/L 2 <br />Bromodichloromethane B201597-BS1 LCS 25.270 25.000 101 70 - 130ug/L 2 <br />Chlorobenzene B201597-BS1 LCS 25.630 25.000 103 70 - 130ug/L 2 <br />Chloroethane B201597-BS1 LCS 23.500 25.000 94.0 70 - 130ug/L 2 <br />1,4-Dichlorobenzene B201597-BS1 LCS 26.460 25.000 106 70 - 130ug/L 2 <br />1,1-Dichloroethane B201597-BS1 LCS 25.110 25.000 100 70 - 130ug/L 2 <br />1,1-Dichloroethene B201597-BS1 LCS 24.450 25.000 97.8 70 - 130ug/L 2 <br />Toluene B201597-BS1 LCS 25.470 25.000 102 70 - 130ug/L 2 <br />Trichloroethene B201597-BS1 LCS 24.870 25.000 99.5 70 - 130ug/L 2 <br />1,2-Dichloroethane-d4 (Surrogate)B201597-BS1 LCS 9.9700 10.000 99.7 75 - 125ug/L 2 <br />Toluene-d8 (Surrogate)B201597-BS1 LCS 10.030 10.000 100 80 - 120ug/L 2 <br />4-Bromofluorobenzene (Surrogate)B201597-BS1 LCS 10.200 10.000 102 80 - 120ug/L 2 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B201596-BS1 LCS EPA-8260B TDH MS-V20 112/03/24 12/03/24 15:26 <br /> 2 B201597-BS1 LCS EPA-8260B TDH MS-V20 112/03/24 12/04/24 14:21 <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 156 of 170Report ID: 1001557016