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Laboratories, Inc. <br />Environmental Testing Laboratory Since 1949 <br />Shaw Reported: 02/04/2013 14:55 <br />180 Promenade Circle, Suite 320 Project: North County LF, SJ County <br />Sacramento, CA 95834 Project Number. 139874 <br />Project Manager: Sheila Richgels <br />Volatile Organic Analysis (EPA Method 8260) <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 <br />Ii <br />QC Batch ID: BWA1559 <br />Benzene <br />BWA1559-BS1 <br />LCS <br />23.900 <br />25.000 <br />ug/L <br />95.6 <br />70-130 <br />Bromodichloromethane <br />BWA1559-BS1 <br />LCS <br />24.430 <br />25.000 <br />ug/L <br />97.7 <br />70-130 <br />Chlorobenzene <br />BWA1559-BS1 <br />LCS <br />23.760 <br />25.000 <br />ug/L <br />95.0 <br />70-130 <br />Chloroethane <br />BWA1559-BS1 <br />LCS <br />25.290 <br />25.000 <br />ug/L <br />101. <br />70-130 <br />1,4 -Dichlorobenzene <br />BWA1559-BS1 <br />LCS <br />26.290 <br />25.000 <br />ug/L <br />105 <br />70-130 <br />1,1-Dichloroethane <br />BWA1559-BS1 <br />LCS <br />23.970 <br />25.000 <br />ug/L <br />95.9 <br />70-130 <br />1,1-Dichloroethene <br />BWA1559-BS1 <br />LCS <br />24.310 <br />25.000 <br />ug/L <br />97.2 <br />70-130 <br />Toluene <br />BWA1559-BS1 <br />LCS <br />24.820 <br />25.000 <br />ug/L <br />99.3 <br />70-130 <br />Trichloroethene <br />BWA1559-BSI <br />LCS <br />23.070 <br />25.000 <br />ug/L <br />92.3 <br />70-130 <br />1,2-Dichl6roethane-d4 (Surrogate) <br />BWA1559-BSI <br />LCS <br />10.300 <br />10.000 <br />ug/L <br />103 <br />75-125 <br />Toluene -d8 (Surrogate) <br />BWA1559-BS1 <br />LCS <br />9.7900 <br />10.000 <br />ug/L <br />97.9 <br />80-120 <br />4-Bromofluorobenzene (Surrogate) <br />BWA1559-BS1 <br />LCS <br />10.730 <br />10.000 <br />ug/L <br />107 <br />80-120 <br />QC Batch ID: BWA1609 <br />Benzene <br />BWA1609-BS1 <br />LCS <br />24.480 <br />25.000 <br />ug/L <br />97.9 <br />70-130 <br />Bromodichloromethane <br />BWA1609-BS1 <br />LCS <br />25.780 <br />25.000 <br />ug/L <br />103 <br />70-130 <br />Chlorobenzene <br />BWA1609-BS1 <br />LCS <br />23.560 <br />25.000 <br />ug/L <br />94.2 <br />70-130 <br />Chloroethane <br />BWA1609-BSI <br />LCS <br />25.460 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />1,4 -Dichlorobenzene <br />BWA1609-BSI <br />LCS <br />26.510 <br />25.000 <br />ug/L <br />106 <br />70-130 <br />1,1-Dichloroethane <br />BWA1609-BS1 <br />LCS <br />24.950 <br />25.000 <br />ug/L <br />99.8 <br />70-130 <br />1,1-Dichloroethene <br />BWA1609-BS1 <br />LCS <br />25.220 <br />25.000 <br />ug/L <br />101 <br />70-130 <br />Toluene <br />BWA1609-BS1 <br />LCS <br />25.440 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />Trichloroethene <br />BWA1609-BS1 <br />LCS <br />24.140 <br />25.000 <br />ug/L <br />96.6 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />BWA1609-BS1 <br />LCS <br />11.000 <br />10.000 <br />ug/L <br />110 <br />75-125 <br />Toluene -d8 (Surrogate) <br />BWA1609-BS1 <br />LCS <br />9.9500 <br />10.000 <br />ug/L <br />99.5 <br />80-120 <br />4-Bromofluorobenzene (Surrogate) <br />BWA1609-BSI <br />LCS <br />10.490 <br />10.000 <br />ug/L <br />105 <br />80-120 <br />i <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. BC Laboratories, Inc. 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.briabs.com Page 34 of 40 <br />