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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Depen Avenue.Suite 100, Irvine,CA 92614(949)261-1022 Fax:(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Navy Dr.,Stockton,CA <br /> 5900 Hollis St.,Suite A Sampled: 03/23/11 <br /> Emeryville,CA 94608 Report Number: WC2973 Received: 03/29/11 <br /> Attention: Aubrey Cool <br /> METHOD BLANK/QC DATA <br /> VOLATILE FUEL HYDROCARBONS BY GC/MS (CA LUFT) <br /> Reporting Spike Source %REC RPD Data <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Qualifiers <br /> Batch: 11D0429 Extracted:04/05/11 <br /> Blank Analyzed:04/05/2011(11D0429-BLKI) - <br /> Volatile Fuel Hydrocarbons(C4-Cl2) ND 10 mg/kg <br /> Surrogate:Dibromofluoromethane 2.37 mg/kg 250 95 55-140 <br /> Surrogate:Toluene-d8 2.41 mg/kg 2.50 96 60-140 <br /> Surrogate:4-Bromofluorobenzene 2.40 mg/kg 1.50 96 65-140 <br /> LCS Analyzed:04/05/2011(1100429-BS2) MNR <br /> Volatile Fuel Hydrocarbons(C4-C12) 61.2 10 mg/kg 50.0 122 60-130 <br /> Surrogate:Dibmmofluoromethane 2.51 mg/kg 2.50 100 55-140 <br /> Surrogate:Toluene-d8 2.50 mg/kg 2.50 100 60-140 <br /> Surrogate:4-Bromofluorobemsene 1.48 mg/kg 2.50 99 65-140 <br /> LCS Dup Analyzed:04105/2011(11D0429-BSD2) <br /> Volatile Fuel Hydrocarbons(C4-C12) 61.1 10 mg/kg 50.0 122 60-130 0.3 25 <br /> Surrogate:Dibromofluoromethane 2.43 mg/kg 2.50 97 55-140 <br /> Surrogate:Toluene-d8 2.49 mg/kg 2.50 99 60-140 <br /> Surrogate:4-Bromofluorobemene 2.47 mg/kg 2.50 99 65-140 <br /> TestAmet'ica Irvine <br /> .Lena Davidkova For Philip Sanelle <br /> Project Manager <br /> The results pertain only to the samples tested/n the labomuny. This repon shall not be reproduced <br /> esceptinfa0,wlthmtwratenpermisslonfrom TesL4merica. 1UC2973 <pa9e7of11> <br />