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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> W Reported: 01/25/2012 13:22 <br /> Promenade Circle,Suite 320 Project: Foothill Landfill <br /> Sacramento,CA 95834 Project Number. 139867 Leachate <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: BVA0695 <br /> Benzene BVA0695-BS1 LCS 23.920 25.000 ug/L 95.7 70-130 <br /> Bromodichloromethane BVA0695-BS1 LCS 24.940 25.000 ug/L 99.8 70-130 <br /> Chlorobenzene BVA0695-BSI LCS 24.790 25.000 ug/L 99.2 70-130 <br /> Chloroethane BVA0695-BS1 LCS 25.500 25.000 ug/L 102 70-130 <br /> 1,4-Dichlorobenzene BVA0695-BS1 LCS 24.630 25.000 ug/L 98.5 70-130 <br /> 1,1-Dichloroethane BVA0695-BSI LCS 24.240 25.000 ug/L 97.0 70-130 <br /> 1,1-Dichloroethene BVA0695-BS1 LCS 25.600 25.000 ug/L 102 70-130 <br /> Toluene BVA0695-BSI LCS 24.540 25.000 ug/L 98.2 70-130 <br /> Trichloroethene BVA0695-BS1 LCS 26.150 25.000 ug/L 105 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BVA0695-BS1 LCS 10.380 10.000 ug/L 104 76-114 <br /> Toluene-d8(Surrogate) BVA0695-BS1 LCS 10.030 10.000 ug/L 100 88-110 <br /> Alliftromofluorobenzene(Surrogate) BVA0695-BSI LCS 10.030 10.000 ug/L 100 86-115 <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 entirely. <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 12 of 17 <br />