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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Derian Avenue.Suite 100, Irvine,CA 92614(949)261-1022 F":(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Navy 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 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:11DO443 Extracted:04/05/11 <br /> LCS Analyzed:04/05/2011(11 D0443-BS 1) <br /> Benzene 0.0487 0.0010 mg/kg 0.0500 97 65-120 <br /> Ethylbenzene OM87 0.0010 mglkg 0.0500 97 70-125 <br /> Toluene 0.0498 0.0010 mg/kg 0.0500 100 70-125 <br /> m,p-Xylenes 0.0931 0.0020 mg/kg 0.100 93 70-125 <br /> o-Xylene 0.0488 0.0010 mg/kg 0.0500 98 70.125 <br /> Xylenes,Total 0.142 0.0020 mg/kg 0.150 95 70-125 <br /> Di-isopropyl Ether(DIPE) 0.0525 0.0020 mg/kg 0.0500 105 60-140 <br /> Ethyl tert-Butyl Ether(ETBE) 0.0669 0.0020 mg/kg 0.0500 134 60-140 <br /> Methyl-tert-butyl Ether(MTBE) 0.0581 0.0020 mg/kg 0.0500 116 60-140 <br /> tert-Amyl Methyl Ether(TAME) 0.0755 0.0020 mg/kg 0.0500 151 60-145 L <br /> tert-Butanol(TBA) 0.223 0.020 mg/kg 0.250 89 70-135 <br /> Surrogate.'4-Bromof/uorobemene 0.0479 mg/kg 0.0500 96 80-120 <br /> Surrogate:Dibromof/uoromethatte 0.0538 mg/kg 0.0500 108 80-125 <br /> Surrogate:Toluene-& 0.0517 mg/kg 0.0500 103 80-120 <br /> Matrix Spike Analyzed:04/05/2011(11 D0443-MS 1) Source:IUD0117-03 <br /> Benzene 0.0528 0.00099 mg/kg 0,0494 ND 107 65-130 <br /> Ethylbenzene 0.0527 0.00099 mg/kg 0.0494 ND 107 70-135 <br /> Toluene 0,0530 0.00099 mg/kg 0.0494 ND 107 70-130 <br /> m,p-Xylenes 0.101 0.0020 mg/kg 0.0988 ND 103 70-130 <br /> o-Xylene 0.0518 0.00099 mg/kg 0.0494 ND 105 65-130 <br /> Xylenes,Total 0.153 0.0020 mg/kg 0.148 ND 103 70-125 <br /> Di-isopropyl Ether(DIPE) 0.0558 0.0020 mg/kg 0.0494 ND 113 60-150 <br /> Ethyl tert-Butyl Ether(ETBE) 0.0696 0.0020 mg/kg 0.0494 ND 141 60-145 <br /> Methyl-tert-butyl Ether(MTBE) 0.0609 0.0020 mg/kg 0.0494 0,00152 120 55-155 <br /> tert-Amyl Methyl Ether(TAME) 0.0759 0.0020 mg/kg 0.0494 ND 154 60-150 M7 <br /> tert-Butanol(TBA) 0.568 0.020 mg/kg 0.247 0.232 136 65-145 <br /> Surrogate:4-Bromofluorobemene 0.0471 mg/kg 0.0494 95 80-120 <br /> Surrogate:Dibromofluoromethane 0.0518 mg/kg 0.0494 105 80-125 <br /> Surrogate:Toluene-& 0.0510 mg/kg 0.0494 103 80-120 <br /> TestAmerica Irvine <br /> Pat Abe For Philip Sanelle <br /> Project Manager <br /> The results pertain only to the samples le.eted in the laboratory. This report shall not be reproduced. <br /> excepNnfull,without writtenpermusionfrom Tesmmerica. IUD0117 <pngel7of23> <br />