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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Dorian 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 W <br /> 5900 Hollis St.,Suite A Sampled: 04/06/11-04/07/11 <br /> Emeryville,CA 94608 Report Number: IUD0863 Received: 04/08/11 <br /> Attention: Aubrey Cool <br /> METHOD BLANK/QC DATA <br /> VOLATILE ORGANICS by GUMS(EPA 5030B/8260B) <br /> Reporting Spike Source %REC RPD Data <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Qualifiers <br /> Batch: 1ID1513 Extracted:04/13/11 <br /> Blank Analyzed:0 4/1 312 01 1(11D1513-BLKI) <br /> Benzene ND 0.050 mg/kg <br /> Ethylberimne ND 0.050 mg/kg <br /> Toluene ND 0.050 mg/kg <br /> m,p-Xylenes ND 0.10 mg/kg <br /> o-Xylene 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 /> tert-Butanol(TBA) ND 1.0 mg/kg <br /> Surrogate:4-Bromofluorobemene 2.17 mg/kg 2.50 91 65-140 <br /> Surrogate:Dibromofluoramethane 1.41 mg/kg 1.50 96 55-140 <br /> Surrogate:Toluene-d8 2.41 mg/kg 2.50 96 60-140 <br /> LCS Analyzed:04/1312011(11D1513-BSI) <br /> Benzene 2.72 0.050 mg/kg 2.50 109 65-120 <br /> Ethylbenzene 2.78 0.050 mg/kg 2.50 Ill 80-120 M-3 <br /> Toluene 2.64 0.050 mg/kg 2.50 105 80-120 <br /> m,p-Xylenes 5.42 0.10 mg/kg 5.00 108 70-125 M-3 <br /> o-Xylene 2.71 0.050 mg/kg 2.50 108 70-125 M-3 <br /> Xylenes,Total <br /> Y 8.13 0.10 mg/kg 7.50 108 70-125 M-3 <br /> Di-isopropyl Ether(DIPE) 2.64 0.10 mg/kg 2.50 106 60-140 <br /> Ethyl tett-Butyl Ether(ETBE) 2.59 0.10 mg/kg 2.50 103 60-140 <br /> Methyl-tert-butyl Ether(MTBE) 2.23 0.10 mg/kg 2.50 89 55-145 <br /> tert-Amyl Methyl Ether(TAME) 2.70 0.10 mg/kg 2.50 108 60-145 <br /> tett-Butanol(TBA) 10.4 1.0 mg/kg 12.5 83 65-140 <br /> Surrogate:4-Bromofluarobenzene 2.43 mg/kg 250 97 65-140 <br /> Surrogate:Dibromofluoromethane 253 mg/kg 2.50 101 55-140 <br /> Surrogate:Toluene-& 2.56 mg/kg 2.50 103 60-140 <br /> TestAmerica Irvine <br /> Philip Sanelle <br /> Project Manager <br /> The results pertain only to the samples rested/n the laboratory. This report shall not be reproduced. <br /> exceptinfull,without written permtrsionfrom TesLImerlca. 1UD0863 <Page25of37> <br />