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Arcadis- SLO <br />735 Tank Farm Rd, Suite 150 <br />San Luis Obispo, CA 93401 <br />Project: <br />Project Number: <br />Project Manager: <br />Forward Landfill <br />30110749 <br />Drew Feucht <br />Reported:07/11/2023 10:34 <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: B169412 <br />Benzene B169412-BS1 LCS 21.570 25.000 86.3 70 - 130ug/L 1 <br />Bromodichloromethane B169412-BS1 LCS 20.900 25.000 83.6 70 - 130ug/L 1 <br />Chlorobenzene B169412-BS1 LCS 22.580 25.000 90.3 70 - 130ug/L 1 <br />Chloroethane B169412-BS1 LCS 25.040 25.000 100 70 - 130ug/L 1 <br />1,4-Dichlorobenzene B169412-BS1 LCS 26.700 25.000 107 70 - 130ug/L 1 <br />1,1-Dichloroethane B169412-BS1 LCS 22.390 25.000 89.6 70 - 130ug/L 1 <br />1,1-Dichloroethene B169412-BS1 LCS 23.070 25.000 92.3 70 - 130ug/L 1 <br />Toluene B169412-BS1 LCS 21.580 25.000 86.3 70 - 130ug/L 1 <br />Trichloroethene B169412-BS1 LCS 23.030 25.000 92.1 70 - 130ug/L 1 <br />1,2-Dichloroethane-d4 (Surrogate)B169412-BS1 LCS 9.1900 10.000 91.9 75 - 125ug/L 1 <br />Toluene-d8 (Surrogate)B169412-BS1 LCS 9.7100 10.000 97.1 80 - 120ug/L 1 <br />4-Bromofluorobenzene (Surrogate)B169412-BS1 LCS 9.6300 10.000 96.3 80 - 120ug/L 1 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B169412-BS1 LCS EPA-8260B MGC MS-V5 107/10/23 07/11/23 05:03 <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 21 of 23Report ID: 1001438912