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TcstAmarica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Delon Avenue.Suite 100, Irvine,CA 92614(949)261-1022 Fex:(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Nary Dr.,Stockton,CA <br /> 5900 Hollis St.,Suite A Sampled: 03/30/11-03/31/11 <br /> Emeryville,CA 94608 Report Number: IUD0117 Received: 04/02/11 <br /> Attention: Aubrey Cool <br /> METHOD BLANK/QC DATA <br /> VOLATILE FUEL HYDROCARBONS BY GCIMS(CA LUFT) <br /> Reporting Spike Source %REC RPD Data <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Qualifiers <br /> Batch:I1D0443 Extracted:04/05/11 <br /> Matrix Spike Analyzed:04/05/2011(11D0443-MSI) Source:IUD0117-03 <br /> Volatile Fuel Hydrocarbons(C4-C12) 2.69 0.20 mg/kg 3.41 ND 79 50-140 <br /> Surrogate.Dibromofluoromethane 0.0518 mg/kg 0.0494 105 80-125 <br /> Surrogate:Toluene-d8 0.0510 mg/kg 0.0494 103 80-120 <br /> Surrogate:4-BromoJluorobenzene 0.0471 mg/kg 0.0494 95 80-120 <br /> Matrix Spike Dup Analyzed:04/06/2011(11D0443-MSDI) Source:IUD0117-03 <br /> Volatile Fuel Hydrocarbons(C4C 12) 2.61 0.20 mg/kg 3.51 ND 74 50-140 3 25 <br /> Surrogate:Dibromofluoromethane 0.0534 mg/kg 0.0508 105 80-125 <br /> Surrogate;Toluene-d8 0.0518 mg/kg 0.0508 101 80-720 <br /> Surrogate:4-Bromofluorobemene 0.0482 mg/kg 0.0508 95 80-110 <br /> Batch: 11DO587 Extracted:04/06/11 <br /> Blank Analyzed:04/06/2011(11D0587-BLKI) <br /> Volatile Fuel Hydrocarbons(C4C 12) ND 0.20 mg/kg <br /> Surrogate:Dibromofluoromethane 0.0515 mg/kg 0.0500 103 80-125 <br /> Surrogate:Toluene-d8 0.0513 mg/kg 0.0500 103 80-120 <br /> Surrogate:4-Bromofluorobemene 0.0476 mg/kg 0.0500 95 ' 80-/20 <br /> LCS Analyzed:04/062011(11 D0587-BS2) <br /> Volatile Fuel Hydrocarbons(C4-C12) 1.27 0.20 mg/kg 1.00 127 60-135 <br /> Surrogate;Dibromofluoromethane 0.0522 mg/kg 0.0500 104 80-125 <br /> Surrogate:Toluene-d8 0.0506 mg/kg 0.0500 101 80.110 <br /> Surrogate:4-Bromofuorobemene 0.0495 mg/kg 0.0500 99 80-120 <br /> Matrix Spike Analyzed:04/06/2011(11D0587-MSI) Source:IUC3281-04 <br /> Volatile Fuel Hydrocarbons(C4-C12) 2.99 0.20 mg/kg 3.42 0.173 82 50-140 <br /> Surrogate:Dibromofluoromethane 0.0477 mg/kg 0.0496 96 80-125 <br /> Surrogate:Toluene-d8 0.0509 mg/kg 0.0496 103 80.120 <br /> Surrogate:4-Bromofluorobemene 0.0487 mg/kg 0.0496 98 80-120 <br /> TestAmerica Irvine <br /> Pat Abe For Philip Sanelle <br /> Project Manager <br /> The results pertain only to the samples tested in the laborarnry. This report shall not be reproduced, <br /> except Afull,without written permissionfrom Test4merica. IUD0117 <Pnge 13 of 23> <br />