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WNW <br /> Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Project: Foothill Landfill <br /> J Reported: 02/22/2010 12:27 <br /> 1326 North Market Boulevard Project Number: 124591 Groundwater <br /> Sacramento,CA 95834 Project Manager: Sheila Richgels <br /> Volatile Organic Analysis (EPA Method 8260) <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 BTB0280 BTB0280-BSI LCS 26.642 25.000 0.50 ug/L 107 70-130 <br /> Bromodichloromethane BTB0280 BTB0280-BS1 LCS 25.482 25.000 0.50 ug/L 102 70-130 <br /> Chlorobenzene BTB0280 BTB0280-BS1 LCS 26.875 25.000 0.50 ug/L 108 70-130 <br /> Chloroethane BTB0280 BTB0280-BS1 LCS 27.778 25.000 0.50 ug/L 111 70-130 <br /> 1,4-Dichlorobenzene BTB0280 BTB0280-BSI LCS 28.189 25.000 0.50 ug/L 113 70-130 <br /> 1,1-Dichloroethane BTB0280 STB0280-BSI LCS 27.646 25.000 0.50 ug/L 111 70-130 <br /> 1,1-Dichloroethene BTB0280 BTB0280-BS1 LCS 26.212 25.000 0.50 ug/L 105 70-130 <br /> Toluene BTB0280 BTB0280-BS1 LCS 26.685 25.000 0.50 ug/L 107 70-130 <br /> Trichloroethene BTB0280 BTB0280-BS1 LCS 27.925 25.000 0.50 ug/L 112 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BTB0280 BTB0280-BS1 LCS 9.9178 10.000 ug/L 99.2 76-114 <br /> Toluene-d8(Surrogate) BTB0280 BTB0280-BS1 LCS 9.6370 10.000 ug/L 96.4 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BTB0280 BTB0280-BSI LCS 9.5929 10.000 ug/L 95.9 86-115 <br /> Benzene BTB0371 BTS0371-BS1 LCS 23.977 25.000 0.50 ug/L 95.9 70-130 <br /> Bromodichloromethane BTB0371 BTB0371-BS1 LCS 24.435 25.000 0.50 ug/L 97.7 70-130 <br /> Chlorobenzene BTB0371 BTB0371-BS1 LCS 25.607 25.000 0.50 ug/L 102 70-130 <br /> Chloroethane BTB0371 STB0371-BS1 LCS 24.810 25.000 0.50 ug/L 99.2 70-130 <br /> 1,4-Dichlorobenzene BTB0371 BTB0371-BS1 LCS 26.522 25.000 0.50 ug/L 106 70-130 <br /> 1,1-Dichloroethane BTB0371 BTB0371-BS1 LCS 24.823 25.000 0.50 ug/L 99.3 70-130 <br /> 1,1-Dichloroethene BTB0371 BTB0371-BS1 LCS 23.582 25.000 0.50 ug/L 94.3 70-130 <br /> Toluene BTB0371 BTB0371-BSI LCS 25.728 25.000 0.50 ug/L 103 70-130 <br /> Trichloroethene BTB0371 BTB0371-BSI LCS 26.685 25.000 0.50 ug/L 107 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BTB0371 BTB0371-BS1 LCS 9.4271 10.000 ug/L 94.3 76-114 <br /> Toluene-d8(Surrogate) BTB0371 BTB0371-BS1 LCS 9.7203 10.000 ug/L 97.2 88-110 <br /> The results in this report apply to the samples analyzed in accordance Lrith the chain o(custocw document.This analytical report must he 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 parry interpretation. <br /> 4100 Atlas Court Bakersfield,CA 93308 (661)327-4911 FAX(661)327-1918 www.bclabs.com Page 37 of 47 <br /> 0 Certifications: California-ELAP Certification N6 <br /> 186; Nevada Administrative Code-NAC-445A 9 <br />