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Laboratories Inc. 1 . <br /> Environmental Testing Laboratory Since 1949 <br /> CB&I Reported: 09/06/2013 15:00 <br /> 180 Promenade Circle,Suite 320 Project: Foothill Landfill <br /> Sacramento,CA 95834 Project Number. 149269 <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 Qualls <br /> QC Batch ID: BWH1938 <br /> Benzene BWH1938-BSI LCS 27.943 25.000 ug/L 112 70-130 <br /> Bromodichloromethane BWH1938-BS1 LCS 27.660 25.000 ug/L 111 70-130 <br /> Chlorobenzene BWH1938-BS1 LCS 27.419 25.000 ug/L 110 70-130 <br /> Chloroethane BWH1938-BS1 LCS 31.465 25.000 ug/L 126 70-130 <br /> 1,4-Dichlorobenzene BWH1938-BSI LCS 25.603 25.000 ug/L 102 70-130 <br /> 1,1-Dichloroethane BWH1938-BSI LCS 28.296 25.000 ug/L 113 70-130 <br /> 1,1-Dichloroethene BWH1938-BS1 LCS 30.041 25.000 ug/L 120 70-130 <br /> Toluene BWH1938-BS1 LCS 26.152 25.000 ug/L 105 70-130 <br /> Trichloroethene BWH1938-BS1 LCS 31.159 25.000 ug/L 125 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BWH1938-BS1 LCS 10.940 10.000 ug/L 109 75-125 <br /> Toluene-d8(Surrogate) BWH1938-BS1 LCS 10.350 10.000 ug/L 104 80-120 <br /> 4-Bromofluorobenzene(Surrogate) BWH1938-BS1 LCS 10.360 10.000 ug/L 104 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 parry.BC Laboratories,Inc assumes no responsibility for report alteratioq separation,detachment or third party interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bdabs.com Page 15 of 20 <br />