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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Dorian Avenue.Suite 100, Irvine,CA 92614(949)261-1022 F..(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Nary Dr.,Stockton,CA <br /> 5900 Hollis St.,Suite A Sampled: 04/08/11 <br /> Emeryville,CA 94608 ReportNumber: IUD1020 Received: 04/12/11 <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: 11D2098 Extracted:04/17/11 <br /> Blank Analyzed:04/17/2011(11D2098-BLKI) <br /> Volatile Fuel Hydrocarbons(C4-CI2) ND 10 mg/kg <br /> Surrogate:Dibromofluoromethane 2.55 mg/kg 2.50 102 55-140 . <br /> Surrogate:Toluene-d8 2.56 mg/kg 2.50 102 60-140 <br /> Surrogate:4-Bromofluorobenzene 1.38 mg/kg 2.50 95 65-140 <br /> LCS Analyzed:04/17/2011(11D2098-BS2) <br /> Volatile Fuel Hydrocarbons(C4-Cl 2) 53.1 10 mg/kg 50.0 106 60-130 M-3 <br /> Surrogate:Dibromofluoromethane 2.56 mg/kg 2.50 102 55-140 <br /> Surrogate:Toluene-d8 2.64 mg/kg 2.50 105 60-140 <br /> Surrogate:4-Bromofluorobemene 2.40 mg/kg I.S0 96 65-140 <br /> LCS Dup Analyzed:04/17/2011(llD2098-BSD2) <br /> Volatile Fuel Hydrocarbons(C4-C12) 52.1 10 mg/kg 50.0 104 60-130 2 25 M-3 <br /> Surrogate:Dibromofluoromethane 2.44 mg/kg 2.50 9755-140 <br /> Surrogate:Toluene-d8 2.48 mg/kg 1.50 99 60-140 <br /> Surrogate:4-Bromofluorobemene 2.36 mg/kg 2.50 95 65-140 <br /> Batch: 11D2102 Extracted:04/17/11 <br /> Blank Analyzed:04/17/2011(11D2102-BLKI) <br /> Volatile Fuel Hydrocarbons(C4-C12) ND 0.20 mg/kg <br /> Surrogate:Dibromofluoromethane 0.0520 mg/kg 0.0500 104 80-125 <br /> Surrogate:Toluene-d8 0.0524 mg/kg 0.0500 105 80-120 <br /> Surrogate:4-Bromofluorobemene 0.0486 mg/kg 0.0500 97 80-120 <br /> LCS Analyzed:04/17/2011(11D2102-BS2) <br /> Volatile Fuel Hydrocarbons(C4-C12) 1.01 0.20 mg/kg 1.00 101 60-135 <br /> Surrogate:Dtbromofluoromethane 0.0526 mg/kg 0.0500 105 80-125 <br /> Surrogate:Toluene-d8 0.0531 mg/kg 0.0500 106 80-120 <br /> Surrogate:4-Bromofluorobemene 0.0493 mg/kg 0.0500 99 80-120 <br /> TestAmerica Irvine <br /> Philip Sanelle <br /> Project Manager <br /> The results pertain only to the samples rested in the laboratory. This report shall not be reproduced, fUD101p <br /> except in full,without written permission from TestAmerica. <Page 7 of 15> <br />