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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Desian Avenue.Suite 100, Irvia.CA 92614(949)261-1022 Fm:(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Navy Dr.,Stockton,CA <br /> 5900 Hollis St.,Suite A Sampled: 04/06/11-04/07/11 <br /> Emeryville,CA 94608 Report Number: ILTDO863 Received: 04/08/11 <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: 11D1882 Extracted:04/15/11 <br /> Blank Analyzed:04/18/2011 (11 D1882-BLKI) <br /> Volatile Fuel Hydrocarbons(C4-C 12) ND 10 mg/kg <br /> Surrogate:Dibromofluaromethane 2.57 mg/kg 2.50 103 55-140 <br /> Surrogate:Toluene-d8 Z78 mg/kg 2.50 111 60-140 <br /> Surrogate:4-Bromofluarobeuene 2.66 mg/kg 2.50 107 65-140 <br /> LCS Analyzed:04/18/2011(llD1882-BS2) <br /> Volatile Fuel Hydrocarbons(C4-C12) 45.1 10 mgfkg 50.0 90 60-130 '-3 <br /> Surrogate:Dibromofdvoromethane 2.62 mg/kg 2.50 105 55-140 <br /> Surrogate:Toluene-d8 2.87 mg/kg 2.50 115 60-140 <br /> Surrogate:4-Bromofluorobemene 2.74 mg/kg 2.50 110 65-140 <br /> LCS Dup Analyzed:04118/2011(I1DI882-BSD2) <br /> Volatile Fuel Hydrocarbons(C4-C12) 47.8 10 mg/kg 50.0 96 60-130 6 25 <br /> Surrogate:Dibromafhloromethane 2.48 mg/kg 2.50 99 55-140 <br /> Surrogate:Toluene-d8 2.72 mg/kg 2.50 109 60-140 <br /> Surrogate:4-Bromofluorobenzene 2.64 mg/kg 2.50 106 65-140 <br /> TestAmerica Irvine <br /> Philip Sanelle <br /> Project Manager <br /> The resu/n pertain only to the samples leered/n the laboratory. This report shall not be reproduced f(ID0863 <pa$e 24 of 3 h <br /> except in full,without written perminlon from TestAmerica. <br />