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Laboratories Inc. <br /> Environmental Testing Laboratory Since 1949 <br /> Shaw Reported: 08/24/2011 16:19 <br /> 180 Promenade Circle,Suite 320 Project: Foothill Landfill <br /> Sacramento,CA 95834 Project Number. 139867 <br /> 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 Lab <br /> Constituent QC Sample ID Type Result Level Units Recovery RPD Recovery RPD Quaffs <br /> QC Batch ID: BUH1053 <br /> Benzene BUH1053-BS1 LCS 26.490 25.000 ug/L 106 70-130 <br /> Bromodichloromethane BUH1053-BS1 LCS 24.930 25.000 ug/L 99.7 70-130 <br /> Chlorobenzene BUH1053-BS1 LCS 26.730 25.000 ug/L 107 70-130 <br /> Chloroethane BUH1053-BS1 LCS 28.020 25.000 ug/L 112 70-130 <br /> 1,4-Dichlorobenzene BUH1053-BS1 LCS 26.370 25.000 ug/L 105 70-130 <br /> 1,1-Dichloroethane BUH1053-BSI LCS 26.400 25.000 ug/L 106 70-130 <br /> 1,1-Dichlorosthene BUH1053-BS1 LCS 26.880 25.000 ug/L 108 70-130 <br /> Toluene BUH1053-BS1 LCS 25.830 25.000 ug/L 103 70-130 <br /> Trichloroethene BUH1053-BS1 LCS 26.410 25.000 ug/L 106 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BUH1053-BS1 LCS 9.6500 10.000 ug/L 96.5 76-114 <br /> Toluene-d8(Surrogate) BUH1053-BSI LCS 9.9700 10.000 ug/L 99.7 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BUH1053-BS1 LCS 10.220 10.000 ug/L 102 86-115 • <br /> QC Batch ID: BUH1118 <br /> Benzene BUH1118-BS1 LCS 26.240 25.000 ug/L 105 70-130 <br /> Bromodichloromethane BUH1118-BSI LCS 24.420 25.000 ug/L 97.7 70-130 <br /> Chlorobenzene BUH1118-BSI LCS 25.690 25.000 ug/L 103 70-130 <br /> Chloroethane BUH1118-BS1 LCS 28.350 25.000 ug/L 113 70-130 <br /> 1,4-Dichlorobenzene BUH1118-BS1 LCS 24.180 25.000 ug/L 96.7 70-130 <br /> 1,1-Dichloroethane BUH1118-BSI LCS 26.090 25.000 ug/L 104 70-130 <br /> 1,1-Dichloroethene BUH1118-BS1 LCS 27.480 25.000 ug/L 110 70-130 <br /> Toluene BUH1118-BS1 LCS 24.870 25.000 ug/L 99.5 70-130 <br /> Trichloroethene BUH1118-BS1 LCS 29.030 25.000 ug/L 116 70-130 <br /> 1,2-Dichloroethane-d4(Surrogate) BUH1118-BSI LCS 10.010 10.000 ug/L 100 76-114 <br /> Toluene-d8(Surrogate) BUH1118-BSI LCS 9.9300 10.000 ug/L 99.3 88-110 <br /> 4-Bromofluorobenzene(Surrogate) BUH1118-BS1 LCS 10.790 10.000 ug/L 108 86-115 <br /> The results in this report apply to the samples analyzed in accordance with the chain ojcustody document This analytical report must be reproduced in its entirety. <br /> All results listed m 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.bciabs.com Page 30 of 36 <br />