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TestAmerica <br /> _ THE LEADER IN ENVIRONMENTAL TESTING 17461 D.d nAvenue.Suite 100, Irvine.CA 92614(949)2614022 Fm:(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Nary Dr.,Stockton,CA <br /> Sampled: 04/06/11-04/07111 <br /> 5900 Hollis St.,Suite A <br /> Emeryville,CA 94608 Report Number: IUD0863 Received: 04/08/11 <br /> Attention: Aubrey Cool <br /> METHOD BLANK/QC DATA <br /> VOLATILE FUEL HYDROCARBONS BY GC/MS (CA LUM <br /> Reporting Spike Source %REC RPD Data <br /> Analyte Result Limit Units Level Result %REC Limits RPD Limit Qualifiers <br /> Batch:11D1531 Extracted:04/13/11 <br /> Matrix Spike Analyzed:04/13/2011(11D1531-MS1) Source:IUD0863-01 <br /> Volatile Fuel Hydrocarbons(C4-C 12) 2.80 0.20 mg/kg 3.44 0.281 73 50-140 <br /> Surrogate:Dibromofuoromethans 0.0531 mg/kg '0.0498 107 80-125 <br /> Surrogate:Toluene-d8 0.0520 mg/kg 0.0498 104 80-120 <br /> Surrogate:4-Bromofluorobemene 0.0494 mg/kg 0.0498 99 80-120 <br /> Matrix Spike Dup Analyzed:04/13/2011(11D3531-MSDI) Source:IUD0863-01 <br /> Volatile Fuel Hydrocarbons(C4-C12) 2.63 0.20 mg/kg 3.46 0.281 68 50-140 6 25 <br /> Surrogate:Dibromafluaromethame 0.0528 mg/kg 0.0502 105 80-125 <br /> Surrogate:Toluene-d8 0.0526 mg/kg 0.0502 105 80-120 <br /> Surrogate:4-Bromofluorobenzene 0.0494 mg/kg 0.0502 98 80-120 <br /> Batch:11D1719 Extracted:04/14/11 <br /> Blank Analyzed:04/14/2011(11D1719-BLK1) <br /> Volatile Fuel Hydrocarbons(C4-C12) ND 0.20 mg/kg <br /> Surrogate:Dibromofluoromethane 0.0516 mg/kg 0.0500 103 80-125 <br /> Surrogate:Toluene-d8 0.0520 mg/kg 0.0500 104 80-120 <br /> Surrogate:4-Bromofluorobemene 0.0467 mg/kg 0.0500 93 80-120 <br /> LCS Analyzed:04/14/2011(11D1719-BS2) <br /> Volatile Fuel Hydrocarbons(C4-C 12) 1.08 0.20 mg/kg 1.00 108 60-135 <br /> Surrogate:Dibromofluoromethane 0.0518 mg/kg 0.0500 104 80-125 <br /> Surrogate:Toluene-d8 0.0533 mg/kg 0.0500 107 80-120 <br /> Surrogate:4-Bromofluorobemene 0.0500 mg/kg 0.0500 100 80-120 <br /> Matrix Spike Analyzed:04/14/2011(11D1719.MS1) Source:IUD0863-09 <br /> Volatile Fuel Hydrocarbons(C4-C12) 2.55 0.20 mg/kg 3.42 ND 75 50-140 <br /> Surrogate:Dibromofluoromethane 0.0539 mg/kg 0.0495 109 80-125 <br /> Surrogate:Toluene-d8 0.0511 mg/kg 0.0495 105 80-120 <br /> Surrogate:4-Bromofluorobenzene 0.0485 mg/kg 0.0495 98 80-120 <br /> TestAmerica Irvine <br /> Philip Sanelle <br /> Project Manager <br /> The resultspertain only to the sampler tested In the laboratory. This report shall not be reproduced, (UD0863 <Page 22 oj3h <br /> except infill,without written permission from TesMmenca. <br />