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Laboratories Inc. I'l <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Project: Forward Landfill Reported: 05/04/2009 10:27 <br /> 16885 W. Bernardo Drive Project Number: Monthly Air Stripper <br /> San Diego,CA 92127 Project Manager: Sarah Battelle <br /> Volatiler i ( ) <br /> Quality Control Report - Laboratory Control Sample <br /> Control Limits <br /> Spike Percent Percent <br /> Constituent Batch ID QC Sample ID QC Type Result Level PQL Units Recovery RPD Recovery RPD Lab Quals <br /> Benzene BSD1932 BSD1932-BSI LCS 25.570 25.000 0.50 ug/L 102 70-130 <br /> Bromodichloromethane BSD1932 BSD1932-BS1 LCS 26.560 25.000 0.50 ug/L 106 70-130 <br /> Chlorobenzene BSD1932 BSD1932-BS1 LCS 24.740 25.000 0.50 ug/L 99.0 70-130 <br /> Chloroethane BSD1932 BSD1932-BSI LCS 26.730 25.000 0.50 ug/L 107 70-130 <br /> 1,4-Dichlorobenzene BSD1932 BSD1932-BSI LCS 26.110 25.000 0.50 ug/L 104 70-130 <br /> 1,1-Dichloroethane BSD1932 BSD1932-BS1 LCS 24.960 25.000 0.50 ug/L 99.8 70-130 <br /> 1,1-Dichloroethene BSD1932 BSD1932-BS1 LCS 25.440 25.000 0.50 ug/L 102 70-130 <br /> Toluene BSD1932 BSD1932-BS1 LCS 24.210 25.000 0.50 ug/L 96.8 70-130 <br /> Trichloroethene BSD1932 BSD1932-BSI LCS 24.660 25.000 0.50 ug/L 98.6 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BSD1932 BSD1932-BS1 LCS 9.9300 10.000 ug/L 99.3 76-114 <br /> Toluene-d8(Surrogate) BSD1932 BSD1932-BSI LCS 9.8800 10.000 ug/L 98.8 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSD1932 BSD1932-BSI LCS 9.5900 10.000 ug/L 95.9 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 9 of 14 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />