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TestArnerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Darn Ave nue.Suite 100, Irvine,CA 92614(949)261-1022 Fmc:(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Nary Dr.,Stockton,CA <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 GC/MS(EPA 5030B/8260B) <br /> Reporting Spike Source %REC RPU Data <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Qualifiers <br /> Batch:11D1719 Extracted:04/14/11 <br /> Blank Analyzed:04/14/2011(11D1719-BLKI) <br /> Benzene ND 0.0010 mg/kg <br /> Ethylbenzene ND 0.0010 mg/kg <br /> Toluene ND 0.0010 mg/kg <br /> m,p-Xylenes ND 0.0020 mg/kg <br /> ii-Xylene ND 0.0010 mg/kg <br /> Xylenes,Total ND 0.0020 mg/kg <br /> Di-isopropyl Ether(DIPE) ND 0.0020 mg/kg <br /> Ethyl tert-Butyl Ether(ETRE) ND 0.0020 mg/kg <br /> Methyt-tert-butyl Ether(MTBE) ND 0.0020 mg/kg <br /> tert-Amyl Methyl Ether(TAME) ND 0.0020 mg/kg <br /> tert-Butanol(TBA) ND 0.020 mg/kg <br /> Surrogate:4-Bromofluorobemene 0.0467 mg/kg 0.0500 93 80-120 <br /> Surrogate:Dibromofluoromethane 0.0516 mg/kg 0.0500 103 80-125 <br /> Surrogate:Toluene48 0.0520 mg/kg 0.0500 104 80-120 <br /> LCS Analyzed:04/14/2011(11D1719-BSI) <br /> Benzene 0.0484 0.0010 mg/kg 0.0500 97 65-120 <br /> Ethylbenzene 0.0513 0.0010 mg/kg 0.0500 103 70-125 <br /> Toluene 0.0498 0.0010 mg/kg 0.0500 100 70-125 <br /> m,p-Xylenes 0.101 0.0020 mg/kg 0.100 101 70-125 <br /> o-Xylene 0.0517 0.0010 mg/kg 0.0500 103 70-125 <br /> Xylenes,Total 0.153 0.0020 mg/kg 0.150 102 70-125 <br /> Di-isopropyl Ether(DIPE) 0.0497 0.0020 mg/kg 0.0500 99 60-140 <br /> Ethyl tert-Butyl Ether(ETBE) 0.0603 0.0020 mg/kg 0.0500 121 60-140 <br /> Methyl-tert-butyl Ether(MTBE) 0.0515 0.0020 mg/kg 0.0500 103 60-140 <br /> ten-Amyl Methyl Ether(TAME) 0.0657 0.0020 mg/kg 0.0500 131 60-145 <br /> tert-Butanol(TBA) 0.235 0.020 mg/kg 0.250 94 70-135 <br /> Surrogate:4-Bromofluorobemene 0.0491 mg/kg 0.0500 98 80-120 <br /> Surrogate:DibromofIuoromethane 0.0522 mg/kg 0.0500 104 80-125 <br /> Surrogate:Toluene-d8 0.0531 mg/kg 0.0500 106 80-120 <br /> TestAmerica Irvine <br /> Philip Sanelle <br /> Project Manager <br /> The resultr pertain only to the samples tested in the laboratory. This report shall not be reproduced, <br /> except In full,without written permission from TestAmerica. I UD0863 <pnge 29 of 37> <br />