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TastAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 19461 Darien Avenue.Suite 100, Irn.'�ne,CA 92614(949)261-1022 Fex:(949)260-3297 <br /> Conestoga-Rovers t&Associates-Emeryville Shell Project ID: 3515 Navy Dr.,Stockton,CA Sampled: 03/30/11-03/31/11 <br /> 5900 Hollis St.,Suite A <br /> Emeryville,CA 94608 Report Number: IUD0117 Received: 04/02/1 I <br /> Attention: Aubrey Cool <br /> METHOD BLANK/QC DATA <br /> VOLATILE ORGANICS by GC/MS(EPA 5030W8260B) <br /> Reporting Spike Source %REC RPD Data <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Qualifiers <br /> Batch: 11DO587 Extracted:04/06/11 <br /> Matrix Spike Dup Analyzed:04/06/2011(11DO587-MSDI) Source:IUC3281-04 <br /> Benzene 0.0504 0.00099 mg/kg 0.0495 ND 102 65-130 1 20 <br /> Ethylbenzene 0.0507 0.00099 mg/kg 0.0495 ND 102 70-135 3 25 <br /> Toluene 0.0507 O.00D99 mg/kg 0.0495 ND 102 70-130 4 20 <br /> m,p-Xylenes 0.0969 0.0020 mg/kg 0.0990 ND 98 70.130 4 25 <br /> o-Xylene 0.0510 0.00099 mg/kg 0.0495 ND 103 65-130 3 25 <br /> Xylenes,Total 0.148 0.0020 mg/kg 0.149 ND 100 70-125 4 25 <br /> Di-isopropyl Ether(DIPE) 0.0530 0.0020 mgtkg 0.0495 ND 107 60-150 3 25 <br /> Ethyl tert-Butyl Ether(ETBE) 0.0671 0,0020 mg/kg 0.0495 ND 136 60-145 4 30 <br /> Methyl-tert-butyl Ether(MTBE) 0.0584 0.0020 mg/kg 0.0495 ND 118 55-155 2 35 <br /> tert-Amyl Methyl Ether(TAME) 0.0748 0.0020 11 0.0495 ND 151 60-150 3 25 M7 <br /> tert-Butanol(TBA) 0.241 0.020 mg/kg 0,248 ND 97 65-145 4 30 <br /> Surrogate:4-Bromofluorobemene 0.0485 mg/kg 0.0495 98 80-120 <br /> Surrogate:Dibromofluoromethane 0.0481 mg/kg 0.0495 97 80-125 <br /> Surrogate:Toluene-d8 0.0507 mg/kg 0.0495 102 80-120 <br /> Batch:11D0589 Extracted:04/06/11 <br /> Blank Analyzed:04/06/2011(11DO589-BLKI) <br /> Benzene ND 0.050 mg/kg <br /> Ethylbenzene ND 0,050 mg/kg <br /> Toluene ND 0.050 mg/kg <br /> m,p-Xylenes ND 0.10 mg/kg <br /> o­Xylene ND 0.050 mg/kg <br /> Xylenes,Total ND 0.10 mg/kg <br /> Di-isopropyl Ether(DIPE) ND 0.10 mg/kg <br /> Ethyl tert-Butyl Ether(ETBE) - ND 0.10 mg/kg <br /> Methyl-tert-butyl Ether(MTBE) ND 0.10 mg/kg <br /> tert-Amyl Methyl Ether(TAME) ND 0.10 mg/kg <br /> tett-Butanol(TBA) ND 1.0 mg/kg <br /> Surrogate:4-Bromofluorobemene 203 mg/kg 2.50 81 65-140 <br /> Surrogate:Dibromofluoromethane 1.15 mg/kg 2.50 86 55-140 <br /> Surrogate:Toluene-d8 zoo mg/kg 2.50 80 60-140 <br /> TestAmerica Irvine <br /> Pat Abe For Philip Sanelle <br /> Project Manager <br /> The results perm/n only m the samples tested in the laboratory. This reporlshall not be reproduced, IUDOII 7 <page 20 Ojll> <br /> exceplinfull,wilhoulwrittenpemissionfromTestAmerica. <br />