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ENYIRCNMENTA! BCIEHCEB <br />Arcadis- SLO Reported: <br />02/27/2023 9:56 <br />735 Tank Farm Rd, Suite 150 Project: <br />Forward Landfill <br />San Luis Obispo, CA 93401 Project Number: <br />30110749.01 <br />Project Manager: <br />Drew Feucht <br />Volatile Organic Analysis (EPA Method 82606) <br />Quality Control Report - Laboratory Control Sample <br />Control Limits <br />Spike Percent Percent Lab <br />Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quals Run # <br />QC Batch ID: B159381 <br />Benzene <br />8159381-BS1 <br />LCS <br />22.970 <br />25.000 <br />ug/L <br />91.9 <br />70-130 <br />1 <br />Bromodichloromethane <br />8159381-BS1 <br />LCS <br />25.210 <br />25.000 <br />ug/L <br />101 <br />70-130 <br />1 <br />Chlorobenzene <br />8159381-BS1 <br />LCS <br />24.340 <br />25.000 <br />ug/L <br />97.4 <br />70-130 <br />1 <br />Chloroethane <br />8159381-BS1 <br />LCS <br />23.340 <br />25.000 <br />ug/L <br />93.4 <br />70-130 <br />1 <br />1,4 -Dichlorobenzene <br />B159381-BS1 <br />LCS <br />25.670 <br />25.000 <br />ug/L <br />103 <br />70-130 <br />1 <br />1,1-Dichloroethane <br />B159381-BS1 <br />LCS <br />23.210 <br />25.000 <br />ug/L <br />92.8 <br />70-130 <br />1 <br />1,1-Dichloroethene <br />B159381-BS1 <br />LCS <br />24.780 <br />25.000 <br />ug/L <br />99.1 <br />70-130 <br />1 <br />Toluene <br />B159381-BS1 <br />LCS <br />24.010 <br />25.000 <br />ug/L <br />96.0 <br />70-130 <br />1 <br />Trichloroethene <br />B159381-BS1 <br />LCS <br />26.170 <br />25.000 <br />ug/L <br />105 <br />70-130 <br />1 <br />1,2-Dichloroethane-d4 (Surrogate) <br />B159381-BS1 <br />LCS <br />9.7600 <br />10.000 <br />ug/L <br />97.6 <br />75-125 <br />1 <br />Toluene -d8 (Surrogate) <br />8159381-BS1 <br />LCS <br />10.090 <br />10.000 <br />ug/L <br />101 <br />80-120 <br />1 <br />4-Bromofluorobenzene (Surrogate) <br />8159381-BS1 <br />LCS <br />10.240 <br />10.000 <br />ug/L <br />102 <br />80-120 <br />1 <br />QC Batch ID: B159469 <br />Benzene <br />8159469-BS1 <br />LCS <br />23.000 <br />25.000 <br />ug/L <br />92.0 <br />70-130 <br />2 <br />Bromodichloromethane <br />8159469-BS1 <br />LCS <br />24.900 <br />25.000 <br />ug/L <br />99.6 <br />70-130 <br />2 <br />Chlorobenzene <br />B159469-BS1 <br />LCS <br />23.440 <br />25.000 <br />ug/L <br />93.8 <br />70-130 <br />2 <br />Chloroethane <br />8159469-BS1 <br />LCS <br />25.030 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />2 <br />1,4 -Dichlorobenzene <br />B159469-BS1 <br />LCS <br />23.750 <br />25.000 <br />ug/L <br />95.0 <br />70-130 <br />2 <br />1,1-Dichloroethane <br />8159469-BS1 <br />LCS <br />23.830 <br />25.000 <br />ug/L <br />95.3 <br />70-130 <br />2 <br />1,1-Dichloroethene <br />B159469-BS1 <br />LCS <br />25.090 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />2 <br />Toluene <br />B159469-BS1 <br />LCS <br />23.880 <br />25.000 <br />ug/L <br />95.5 <br />70-130 <br />2 <br />Trichloroethene <br />B159469-BS1 <br />LCS <br />24.260 <br />25.000 <br />ug/L <br />97.0 <br />70-130 <br />2 <br />1,2-Dichloroethane-d4 (Surrogate) <br />B159469-BS1 <br />LCS <br />9.4800 <br />10.000 <br />ug/L <br />94.8 <br />75-125 <br />2 <br />Toluene -d8 (Surrogate) <br />B159469-BS1 <br />LCS <br />10.140 <br />10.000 <br />ug/L <br />101 <br />80-120 <br />2 <br />4-Bromofluorobenzene (Surrogate) <br />8159469-BS1 <br />LCS <br />9.9100 <br />10.000 <br />ug/L <br />99.1 <br />80-120 <br />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 />Report ID: 1001401191 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 64 of 82 <br />