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10�Laboratories Inc. I <br />Environmental Testing Laboratory Since 1949 <br />haw Reported: 02/22/2011 14:26 <br />180 Promenade Circle, Suite 320 Project: Foothill Landfill <br />Sacramento, CA 95834 Project Number. 139867 Groundwater <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 />QC Batch ID: BUB0029 <br />Benzene <br />BUB0029-BS1 <br />LCS <br />25.080 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />Bromodichloromethane <br />BUB0029-BS1 <br />LCS <br />27.010 <br />25.000 <br />ug/L <br />108 <br />70-130 <br />Chlorobenzene <br />BUB0029-BSI <br />LCS <br />25.660 <br />25.000 <br />ug/L <br />103 <br />70-130 <br />Chloroethane <br />BUB0029-BSI <br />LCS <br />25.390 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />1,4 -Dichlorobenzene <br />BUB0029-BSI <br />LCS <br />26.530 <br />25.000 <br />ug/L <br />106 <br />70-130 <br />1,1-Dichlorcethane <br />BUB0029-BSI <br />LCS <br />25.520 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />1,1-Dichloroethene <br />BUB0029-BS1 <br />LCS <br />25.580 <br />25.000 <br />ug/L <br />102 <br />70-130 <br />Toluene <br />BUB0029-BS1 <br />LCS <br />25.010 <br />25.000 <br />ug/L <br />100 <br />70-130 <br />Trichloroethene <br />BUB0029-BS1 <br />LCS <br />25.870 <br />25.000 <br />ug/L <br />103 <br />70-130 <br />1,2-Dichloroethane-d4 (Surrogate) <br />BUB0029-BSI <br />LCS <br />9.6800 <br />10.000 <br />ug/L <br />96.8 <br />76-114 <br />luene-d8 (Surrogate) <br />BUB0029-BSI <br />LCS <br />10.160 <br />10.000 <br />ug/L <br />102 <br />88-110 <br />romofluorobenzene (Surrogate) <br />BUB0029-BS1 <br />LCS <br />10.050 <br />10.000 <br />ug/L <br />100 <br />86-115 <br />rw <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.bclabs.com Page 31 of 36 <br />