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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Project: Forward Landfill-Monthly Reported: 04/13/2010 14:27 <br /> 16885 W. Bernardo Drive Project Number: Tower Effluent <br /> San Diego, CA 92127 Project Manager: Bill Lopez <br /> Volatile r is Analysis ( ) <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 Recoveg RPD Recoveg RPD Lab Qualls <br /> Benzene BTD0488 BTD0488-BS1 LCS 25.180 25.000 0.50 ug/L 101 70-130 <br /> Bromodichloromethane BTD0488 BTD0488-BS1 LCS 24.600 25.000 0.50 ug/L 98.4 70-130 <br /> Chlorobenzene BTDO488 BTD0488-BSI LCS 24.090 25.000 0.50 ug/L 96.4 70-130 <br /> Chloroethane BTDO488 BTDO488-BSI LCS 25.790 25.000 0.50 ug/L 103 70-130 <br /> 1,4-Dichlorobenzene BTD0488 BTD0488-BS1 LCS 23.800 25.000 0.50 ug/L 95.2 70-130 <br /> 1,1-Dichloroethane BTD0488 BTD0488-BS1 LCS 25.420 25.000 0.50 ug/L 102 70-130 <br /> 1,1-Dichloroethene BTDO488 BTD0488-BS1 LCS 26.250 25.000 0.50 ug/L 105 70-130 <br /> Toluene BTDO488 BTDO488-BSI LCS 24.640 25.000 0.50 ug/L 98.6 70-130 <br /> Trichloroethene BTD0488 BTDO488-BSI LCS 26.790 25.000 0.50 ug/L 107 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BTD0488 BTD0488-BS1 LCS 10.080 10.000 ug/L 101 76-114 <br /> Toluene-d8(Surrogate) BTD0488 BTD0488-BS1 LCS 9.9200 10.000 ug/L 99.2 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BTD0488 BTD0488-BS1 LCS 9.9700 10.000 ug/L 99.7 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 12 of 17 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />