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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 17461 Derian Avenue.Saila 100, Irvine,CA 92614(949)261-102, 2Fez:(949)260-3297 <br /> Conestoga-Rovers&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: 04/02/11 <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 %REC Limits RPD Limit Qualifiers <br /> Batch:11DO443 Extracted:04/05/11 <br /> Matrix Spike Dup Analyzed:04/06/2011(11D0443-MSD1) Source:IUD0117-03 <br /> Benzene 0.0505 0.0010 mg/kg 0.0508 ND 99 65-130 4 20 <br /> Ethylbenzene 0.0511 0.0010 mg/kg 0.0508 ND 101 70-135 3 25 <br /> Toluene 0.0521 0.0010 mg/kg 0.0508 ND 102 70-130 2 20 <br /> m,p�Xylenes 0.0987 0.0020 mg/kg 0.102 ND 97 70-130 3 25 <br /> o-Xylene 0.0514 0.0010 mg/kg 0.0508 ND 101 65-130 0.9 25 <br /> Xylenes,Total - 0,150 0.0020 mg/kg 0.152 ND 98 70-125 2 25 <br /> Di-isopropyl Ether(DIPE) 0.0539 0.0020 mg/kg 0.0508 ND 106 60-150 3 25 <br /> Ethyl tert-Butyl Ether(ETBE) 0.0662 0.0020 mg/kg 0.0508 ND 130 60-145 5 30 <br /> Methyl-tert-butyl Ether(MTBE) 0.0569 0.0020 mg/kg 0.0508 0.00152 109 55-155 7 35 <br /> tert-Amyl Methyl Ether(TAME) 0.0734 0.0020 mg/kg 0.0508 ND 144 60.150 3 25 <br /> ten-Butanol(TBA) 0.485 0.020 mg/kg 0.254 0.232 100 65-145 16 30 <br /> Surrogate:4-Bromofluorobeneene 0.0481 mg/kg 0.0508 95 80-120 <br /> Surrogate:Dibromofluoromethane 0.0534 mg/kg 0.0508 105 80-115 <br /> Surrogate:Toluene-d8 0.0518 mg/kg 0.0508 102 80-120 <br /> Batch: 11D0587 Extracted:04/06/11 <br /> Blank Analyzed:04/06/2011(11D0587-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 /> 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 0.0476 mg/kg 0.0500 95 80-120 <br /> Surrogate:Dibromofluoromethane 0.0515 mg/kg 0.0500 103 80-115 <br /> Surrogate:Toluene-d8 0.0513 mg/kg moo 103 80-120 <br /> TestAnnerica Irvine <br /> Pat Abe For Philip Sanelle <br /> Project Manager <br /> The reeu/tr pertain only to the samples tested In the labwmory. This report(M1all not be reproduced, ]UD0I17 <ppg¢I$of 13> <br /> except in full,without wrtueo pemusion from TeWmerica. <br />