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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> aw Reported: 01/25/2012 13:24 <br /> 0 Promenade Circle,Suite 320 Project: Foothill Landfill <br /> Sacramento,CA 95834 Project Number. 139867 GW <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: BVA1098 <br /> Benzene BVA1098-BSI LCS 23.780 25.000 ug/L 95.1 70-130 <br /> Bromodichloromethane BVA1098-BSI LCS 22.270 25.000 ug/L 89.1 70-130 <br /> Chlorobenzene BVA1098-BS1 LCS 21.740 25.000 ug/L 87.0 70-130 <br /> Chloroethane BVA1098-BS1 LCS 24.600 25.000 ug/L 98.4 70-130 <br /> 1,4-Dichlorobenzene BVA1098-BS1 LCS 19.120 25.000 ug/L 76.5 70-130 <br /> 1,1-Dichloroethane BVA1098-BS1 LCS 23.290 25.000 ug/L 93.2 70-130 <br /> 1,1-Dichloroethene BVA1098-BSI LCS 23.050 25.000 ug/L 92.2 70-130 <br /> Toluene BVA1098-BSI LCS 23.390 25.000 ug/L 93.6 70-130 <br /> Trichloroethene BVA1098-BS1 LCS 20.290 25.000 ug/L 81.2 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BVA1098-BS1 LCS 9.7200 10.000 ug/L 97.2 76-114 <br /> Toluene-d8(Surrogate) BVA1098-BSI LCS 10.280 10.000 ug/L 103 88-110 <br /> romofluorobenzene(Surrogate) BVA1098-BS1 LCS 9.8700 10.000 ug/L 98.7 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 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 14 of 19 <br />