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ENYIRCNMENTA! BCIEHCEB <br />Arcadis- SLO Reported: 02/14/2023 8:06 <br />735 Tank Farm Rd, Suite 150 Project: Forward Landfill <br />San Luis Obispo, CA 93401 Project Number: 30110749 <br />Project Manager: 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: B159716 <br />Benzene <br />B159716 -BSI <br />B159716-BSD1 <br />LCS <br />LCSD <br />23.310 <br />21.900 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />93.2 <br />87.6 <br />6.2 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />Bromodichloromethane <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />26.590 <br />25.410 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />106 <br />102 <br />4.5 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />Chlorobenzene <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />24.480 <br />23.920 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />97.9 <br />95.7 <br />2.3 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />Chloroethane <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />25.090 <br />22.640 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />100 <br />90.6 <br />10.3 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />1,4 -Dichlorobenzene <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />25.420 <br />25.350 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />102 <br />101 <br />0.3 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />1,1-Dichloroethane <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />23.810 <br />21.980 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />95.2 <br />87.9 <br />8.0 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />1,1-Dichloroethene <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />26.050 <br />23.870 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />104 <br />95.5 <br />8.7 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />Toluene <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />24.840 <br />23.060 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />99.4 <br />92.2 <br />7.4 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />Trichloroethene <br />B159716 -BSI <br />B159716-BSD1 <br />LCS <br />LCSD <br />25.230 <br />23.590 <br />25.000 <br />25.000 <br />ug/L <br />ug/L <br />101 <br />94.4 <br />6.7 <br />70-130 <br />70-130 <br />20 <br />1 <br />2 <br />1,2-Dichloroethane-d4 (Surrogate) <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />9.7500 <br />9.6200 <br />10.000 <br />10.000 <br />ug/L <br />ug/L <br />97.5 <br />96.2 <br />1.3 <br />75-125 <br />75-125 <br />1 <br />2 <br />Toluene -d8 (Surrogate) <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />10.080 <br />9.9000 <br />10.000 <br />10.000 <br />ug/L <br />ug/L <br />101 <br />99.0 <br />1.8 <br />80-120 <br />80-120 <br />1 <br />2 <br />4-Bromofluorobenzene (Surrogate) <br />B159716-BS1 <br />B159716-BSD1 <br />LCS <br />LCSD <br />9.9800 <br />10.380 <br />10.000 <br />10.000 <br />ug/L <br />ug/L <br />99.8 <br />104 <br />3.9 <br />80-120 <br />80-120 <br />1 <br />2 <br />QC Batch ID: B159717 <br />Benzene <br />B159717-BS1 <br />LCS <br />23.400 <br />25.000 <br />ug/L <br />93.6 <br />70-130 <br />3 <br />Bromodichloromethane <br />B159717-BS1 <br />LCS <br />26.130 <br />25.000 <br />ug/L <br />105 <br />70-130 <br />3 <br />Chlorobenzene <br />B159717-BS1 <br />LCS <br />25.050 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />3 <br />Chloroethane <br />B159717-BS1 <br />LCS <br />24.720 <br />25.000 <br />ug/L <br />98.9 <br />70-130 <br />3 <br />1,4 -Dichlorobenzene <br />B159717-BS1 <br />LCS <br />26.270 <br />25.000 <br />ug/L <br />105 <br />70-130 <br />3 <br />1,1-Dichloroethane <br />B159717-BS1 <br />LCS <br />23.940 <br />25.000 <br />ug/L <br />95.8 <br />70-130 <br />3 <br />1,1-Dichloroethene <br />B159717-BS1 <br />LCS <br />26.080 <br />25.000 <br />ug/L <br />104 <br />70-130 <br />3 <br />Toluene <br />B159717-BS1 <br />LCS <br />24.230 <br />25.000 <br />ug/L <br />96.9 <br />70-130 <br />3 <br />Trichloroethene <br />8159717-BS1 <br />LCS <br />25.790 <br />25.000 <br />ug/L <br />103 <br />70-130 <br />3 <br />1,2-Dichloroethane-d4 (Surrogate) <br />B159717-BS1 <br />LCS <br />10.040 <br />10.000 <br />ug/L <br />100 <br />75-125 <br />3 <br />Toluene -d8 (Surrogate) <br />B159717-BS1 <br />LCS <br />10.140 <br />10.000 <br />ug/L <br />101 <br />80-120 <br />3 <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: 1001397271 4100 Atlas Court Bakersfield, CA 93308 (661) 327-4911 FAX (661) 327-1918 www.pacelabs.com Page 26 of 30 <br />