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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Reported: 02/15/2012 16:55 <br /> 11415 W.Bernardo Ct,Ste 220 Project: Forward Landfill-Monthly A.S.Tower <br /> San Diego,CA 92127 Project Number: [none] <br /> Project Manager: Bill Lopez <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: BVB0877 <br /> Benzene BVB0877-BS1 LCS 24.160 25.000 ug/L 96.6 70-130 <br /> Bromodichloromethane BVB0877-BS1 LCS 25.440 25.000 ug/L 102 70-130 <br /> Chlorobenzene BVB0877-BS1 LCS 25.980 25.000 ug/L 104 70-130 <br /> Chloroethane BVB0877-BS1 LCS 24.590 25.000 ug/L 98.4 70-130 <br /> 1,4-Dichlorobenzene BVB0877-BS1 LCS 27.170 25:000 ug/L 109 70-130 <br /> 1,1-Dichloroethane BVB0877-BSI LCS 24.170 25.000 ug/L 96.7 70-130 <br /> 1,1-Dichloroethene BVB0877-BS1 LCS 24.200 25.000 ug/L 96.8 70-130 <br /> Toluene BVB0877-BS1 LCS 24.600 25.000 ug/L 98.4 70-130 <br /> Trichloroethene BVB0877-BS1 LCS 24.770 25.000 ug/L 99.1 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BVB0877-BS1 LCS 9.6800 10.000 ug/L 96.8 76-114 <br /> Toluene-d8(Surrogate) BVB0877-BSI LCS 9.9400 10.000 ug/L 99.4 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BVB0877-BS1 LCS 10.330 10.000 ug/L 103 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 10 of 12 <br />