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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Geologic Associates Project: Forward Landfill Reported: 06/26/2009 16:34 <br /> 16885 W. Bernardo Drive Project Number: Air Stripper Tower 2009 <br /> San Diego, CA 92127 Project Manager: Sarah Battelle <br /> Volatile Organic ( ) <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 Recove RPD Recovery RPD Lab Quals <br /> Benzene BSF1087 BSF1087-BSI LCS 27.730 25.000 0.50 ug/L 111 70-130 <br /> Bromodichloromethane BSF1087 BSF1087-BSI LCS 22.790 25.000 0.50 ug/L 91.2 70-130 <br /> Chlorobenzene BSF1087 BSF1087-BSI LCS 24.050 25.000 0.50 ug/L 96.2 70-130 <br /> Chloroethane BSF1087 BSF1087-BS1 LCS 32.240 25.000 0.50 ug/L 129 70-130 <br /> 1,4-Dichlorobenzene BSF1087 BSF1087-BSI LCS 24.520 25.000 0.50 ug/L 98.1 70-130 <br /> 1,1-Dichloroethane BSF1087 BSF1087-BSI LCS 26.730 25.000 0.50 ug/L 107 70-130 <br /> 1,1-Dichloroethene BSF1087 BSF1087-BSI LCS 25.590 25.000 0.50 ug/L 102 70-130 <br /> Toluene BSF1087 BSF1087-BSI LCS 24.340 25.000 0.50 ug/L 97.4 70-130 <br /> Trichloroethene BSF1087 BSF1087-BS1 LCS 22.800 25.000 0.50 ug/L 91.2 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BSF1087 BSF1087-BSI LCS 9.7600 10.000 ug/L 97.6 76-114 <br /> Toluene-d8(Surrogate) BSF1087 BSF1087-BS1 LCS 10.130 10.000 ug/L 101 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BSF1087 BSF1087-BS1 LCS 9.8500 10.000 ug/L 98.5 86-115 <br /> Benzene BSF1126 BSF1126-BS1 LCS 26.380 25.000 0.50 ug/L 106 70-130 <br /> Bromodichloromethane BSF1126 BSF1126-BS1 LCS 23.110 25.000 0.50 ug/L 92.4 70-130 <br /> Chlorobenzene BSF1126 BSF1126-BS1 LCS 24.060 25.000 0.50 ug/L 96.2 70-130 <br /> Chloroethane BSF1126 BSF1126-BS1 LCS 29.900 25.000 0.50 ug/L 120 70-130 <br /> 1,4-Dichlorobenzene BSF1126 BSF1126-BS1 LCS 25.070 25.000 0.50 ug/L 100 70-130 <br /> 1,1-Dichloroethane BSF1126 BSF1126-BS1 LCS 25.580 25.000 0.50 ug/L 102 70-130 <br /> 1,1-Dichloroethene BSF1126 BSF1126-BS1 LCS 24.750 25.000 0.50 ug/L 99.0 70-130 <br /> Toluene BSFI126 BSF1126-BSI LCS 23.300 25.000 0.50 ug/L 93.2 70-130 <br /> Trichloroethene BSF1126 BSF1126-BS1 LCS 22.610 25.000 0.50 ug/L 90.4 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BSF1126 BSF1126-BS1 LCS 10.330 10.000 ug/L 103 76-114 <br /> Toluene-d8(Surrogate) BSF1126 BSF1126-BS1 LCS 10.010 10.000 ug/L 100 88-110 <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 13 of 23 <br /> Certifications: California-ELAP Certification Number 1186; Nevada Administrative Code-NAC-445A <br />