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1 <br /> La oratories Inc. l <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Reported: 07/07/2010 16:08 <br /> 16885 W. Bernardo Drive Project: Forward Landfill-Monthly A.S.Tower <br /> San Diego, CA 92127 Project Number: Monthly <br /> Project Manager: Bill Lopez <br /> Volatile Organic Analysis (EPA Method260) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recoveg RPD Lab Quals <br /> QC Batch ID: BTF1748 <br /> Benzene BTF1748-BS1 LCS 28.140 25.000 ug/L 113 70-130 <br /> Bromodichloromethane BTF1748-BS1 LCS 24.230 25.000 ug/L 96.9 70-130 <br /> Chlorobenzene BTF1748-BS1 LCS 25.610 25.000 ug/L 102 70-130 <br /> Chloroethane BTF1748-BS1 LCS 28.460 25.000 ug/L 114 70-130 <br /> 1,4-Dichlorobenzene BTF1748-BS1 LCS 24.740 25.000 ug/L 99.0 70-130 <br /> 1,1-Dichloroethane BTF1748-BS1 LCS 27.380 25.000 ug/L 110 70-130 <br /> 1,1-Dichloroethene BTF1748-BS1 LCS 31.550 25.000 ug/L 126 70-130 <br /> Toluene BTF1748-BS1 LCS 25.230 25.000 ug/L 101 70-130 <br /> Trichloroethene BTF1748-BS1 LCS 29.250 25.000 ug/L 117 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BTF1748-BS1 LCS 9.6300 10.000 ug/L 96.3 76-114 <br /> Toluene-d8(Surrogate) BTF1748-BS1 LCS 9.7700 10.000 ug/L 97.7 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BTF1748-BS1 LCS 9.6200 10.000 ug/L 96.2 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 alteratiorq 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 />