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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 />4Q23 Austin Unit <br />Aaron Hook <br />Reported:12/11/2023 17:13 <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: B177909 <br />Benzene B177909-BS1 LCS 26.630 25.000 107 70 - 130ug/L 1 <br />Bromodichloromethane B177909-BS1 LCS 24.560 25.000 98.2 70 - 130ug/L 1 <br />Chlorobenzene B177909-BS1 LCS 21.880 25.000 87.5 70 - 130ug/L 1 <br />Chloroethane B177909-BS1 LCS 27.910 25.000 112 70 - 130ug/L 1 <br />1,4-Dichlorobenzene B177909-BS1 LCS 21.870 25.000 87.5 70 - 130ug/L 1 <br />1,1-Dichloroethane B177909-BS1 LCS 25.520 25.000 102 70 - 130ug/L 1 <br />1,1-Dichloroethene B177909-BS1 LCS 28.730 25.000 115 70 - 130ug/L 1 <br />Toluene B177909-BS1 LCS 25.760 25.000 103 70 - 130ug/L 1 <br />Trichloroethene B177909-BS1 LCS 26.680 25.000 107 70 - 130ug/L 1 <br />1,2-Dichloroethane-d4 (Surrogate)B177909-BS1 LCS 11.040 10.000 110 75 - 125ug/L 1 <br />Toluene-d8 (Surrogate)B177909-BS1 LCS 10.270 10.000 103 80 - 120ug/L 1 <br />4-Bromofluorobenzene (Surrogate)B177909-BS1 LCS 10.810 10.000 108 80 - 120ug/L 1 <br />Run #QC Sample ID QC Type Method Prep Date <br />Run <br />Analyst Instrument DilutionDate Time <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <br /> 1 B177909-BS1 LCS EPA-8260B RCC HPCHEM 111/08/23 11/08/23 23:51 <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 101 of 115Report ID: 1001475032