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TestArnerica <br /> THE LEADSR IN ENVIRONMENTAL TES[I NG 17461 Derian 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 <br /> 5900 Hollis St.,Suite A Sampled: 03/29/11-03/30/11 <br /> Emeryville,CA 94608 Report Number: IUC3240 Received: 03/31/11 <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:11D0443 Extracted:04/05/11 <br /> Matrix Spike Dup Analyzed:04/06/2011(11D0443-MSDI) 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-Xylencs 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(RIPE) 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 /> tert-Butanol(TBA) 0.485 0.020 mg/kg 0.254 0.232 100 65-145 16 30 <br /> Surrogate:4-Broingthiorobenzene 0.0482 mg/kg 0.0508 95 80-120 <br /> Surrogate:Dibromofluoromethone 0.0534 mg/kg 0.0508 105 80-125 <br /> Surrogate:Toluene48 0.0518 mg/kg 0.0508 102 80-120 <br /> Batch:11D0617 Extracted:04/06/11 <br /> Blank Analyzed:04/06/2011(11 D0617-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 /> 0-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 tort-Butyl Ether(E18E) 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-Bromofluorobemene 0.0485 mg/kg 0.0500 97 80-120 <br /> Surrogate:Dibromofluoromethane 0.0515 mg/kg 0.0500 103 80-125 <br /> Surrogate:Toluene-d8 0.0506 mg/kg 0.0500 101 80-120 <br /> TestAmerica Irvine <br /> Lena Davidkova For Philip Sanelle <br /> Project Manager <br /> The results pertain only to the samples tested In the laboratory. This report shall not be reproduced, <br /> except Infull,without written TesWmeriea. IUC3240 <Page 19 of 23> <br />