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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Dmim Avenue.Seize 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: 04/06/11-04/07/11 <br /> Emeryville,Aubrey <br /> ey Co 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 RPD Data <br /> Analyte Result Limit Units Level Result /oREC Limits RPD Limit <br /> 0 <br /> Qualifiers <br /> Batch: 11D1875 Extracted:04/15/11 <br /> Blank Analyzed:04/15/2011 (11D1875-BLK1) <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 /> o-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(ETBE) ND 0.0020 mg/kg <br /> Methyl-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-Bromofluorobenzene 0.0493 mg/kg 0.0500 99 80-110 <br /> Surrogate:Dibromofluoromethane 0.0560 mg/kg 0.0500 112 80-125 <br /> Surrogate:Toluene-d8 0.0519 mg/kg 0.0500 104 80-110 <br /> LCS Analyzed:04/15/2011(11D1875-BSI) <br /> Benzene 0.0502 0.0010 mg/kg 0.0500 100 65-120 <br /> 'Ethylbenzene 0.0526 0.0010 mglkg 0.0500 105 70-125 <br /> Toluene 0.0526 0.0010 mg/kg 0.0500 105 70-125 <br /> m,p-Xylenes 0.103 0.0020 mg/kg 0.100 103 70-125 <br /> o-Xylene 0.0516 0.0010 mg/kg 0.0500 103 70-125 <br /> Xylenes,Total 0.155 0.0020 mg/kg 0.150 103 70-125 <br /> Di-isopropyl Ether(DIPE) 0.0639 0.0020 mg/kg 0,0500 128 60-140 <br /> Ethyl tert-Butyl Ether(ETBE) 0.0543 0.0020 mg/kg - 0.0500 109 60-140 <br /> Methyl-ten-butyl Ether(MTBE) 0.0524 0.0020 mg/kg 0.0500 105 60-140 <br /> tert-Amyl Methyl Ether(TAME) 0.0515 0.0020 mg/kg 0.0500 103 60-145 <br /> tert-Butanol(TBA) 0,258 0.020 mg/kg 0.250 103 70-135 <br /> Surrogate:4-Bromofluorobenzene 0.0505 mg/kg 0.0500 101 80-120 <br /> Surrogate:Dibromofluoromethane 0.0538 mg/kg 0.0500 108 80-125 <br /> Surrogate:Toluene-& 0.0523 m <br /> g/kg 0.0300 105 80-/20 <br /> TestAmerica Irvine <br /> Philip Sanelle <br /> Project Manager <br /> The results pertain only to the samples tested in the laboramry. This report shall not be reproduced, <br /> except lnfull,without writenpernessionfrom TestAmerfes 1UD0863 <page31oj37> <br />