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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Reported: 08/07/2012 16:42 <br /> 180 Promenade Circle,Suite 320 Project: Foothill Landfill <br /> Sacramento,CA 95834 Project Number. 139867 <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: BVG1680 <br /> Benzene BVG1680-BSI LCS 24.530 25.000 ug/L 98.1 70-130 <br /> Bromodichioromethane BVG1680-BSI LCS 25.520 25.000 ug/L 102 70-130 <br /> Chlorobenzene BVG1680-BS1 LCS 23.760 25.000 ug/L 95.0 70-130 <br /> Chloroethane BVG1680-BSI LCS 25.050 25.000 ug/L 100 70-130 <br /> 1,4-Dichlorobenzene BVG1680-BSI LCS 22.690 25.000 ug/L 90.8 70-130 <br /> 1,1-Dichloroethane BVG1680-BS1 LCS 24.420 25.000 ug/L 97.7 70-130 <br /> 1,1-Dichloroethene BVG1680-BS1 LCS 23.810 25.000 ug/L 95.2 70-130 <br /> Toluene BVG1680-BS1 LCS 25.630 25.000 ug/L 103 70-130 <br /> Trichloroethene BVG1680-BS1 LCS 27.680 25.000 ug/L 111 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BVG1680-BS1 LCS 10.000 10.000 ug/L 100 75-125 <br /> Toluene-d8(Surrogate) BVG1680-BS1 LCS 10.360 10.000 ug/L 104 80-120 <br /> 4-Bromofluorobenzene(Surrogate) BVG1680-BS1 LCS 9.8200 10.000 ug/L 98.2 80-120 <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.balabs.com Page 28 of 33 <br />