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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 />GWTS <br />Ari Terry <br />Reported:01/02/2024 9:44 <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: B180912 <br />Benzene B180912-BS1 LCS 21.580 25.000 86.3 70 - 130ug/L 1 <br />Bromodichloromethane B180912-BS1 LCS 22.180 25.000 88.7 70 - 130ug/L 1 <br />Chlorobenzene B180912-BS1 LCS 21.320 25.000 85.3 70 - 130ug/L 1 <br />Chloroethane B180912-BS1 LCS 26.740 25.000 107 70 - 130ug/L 1 <br />1,4-Dichlorobenzene B180912-BS1 LCS 20.900 25.000 83.6 70 - 130ug/L 1 <br />1,1-Dichloroethane B180912-BS1 LCS 21.730 25.000 86.9 70 - 130ug/L 1 <br />1,1-Dichloroethene B180912-BS1 LCS 24.440 25.000 97.8 70 - 130ug/L 1 <br />Toluene B180912-BS1 LCS 21.210 25.000 84.8 70 - 130ug/L 1 <br />Trichloroethene B180912-BS1 LCS 22.080 25.000 88.3 70 - 130ug/L 1 <br />1,2-Dichloroethane-d4 (Surrogate)B180912-BS1 LCS 10.700 10.000 107 75 - 125ug/L 1 <br />Toluene-d8 (Surrogate)B180912-BS1 LCS 9.8000 10.000 98.0 80 - 120ug/L 1 <br />4-Bromofluorobenzene (Surrogate)B180912-BS1 LCS 10.280 10.000 103 80 - 120ug/L 1 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <br /> 1 B180912-BS1 LCS EPA-8260B MGC MS-V5 112/29/23 12/30/23 03:37 <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 24Report ID: 1001479976