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TestAmerica <br /> IHE LEADER IN ENVIRONMENTAL TESTING 17461 Denim Avenue.Suite 100, Irvine,CA 92614(949)261-1022 Fax:(949)260-3297 <br /> Conestoga-Rovers&Associates-Emeryville Shell Project ID: 3515 Nary Dr.,Stockton,CA <br /> 5900 Hollis St.,Suite A Sampled: 04/06/11-04/07/1) <br /> Emeryville,CA 94608 Report Number: TUD0863 Received: 04/08/11 <br /> Attention: Aubrey Cool <br /> VOLATILE ORGANICS by GC/MS(EPA 5030B/8260B) <br /> Reporting Sample Dilution Date Date Data <br /> Analyte Method Batch Limit Result Factor Extracted Analyzed Qualifiers <br /> Sample ID:IUD0863-23(AS-13-15-Soil) Sampled:04/07/11 <br /> Reporting Units: mg/kg <br /> Benzene EPA 8260B 11DI513 0.050 0.24 99.6 4/13/2011 4/14/2011 <br /> Ethylbenzene EPA 8260B 11D1513 0.050 0.49 99.6 4/13/2011 4/14/2011 <br /> Toluene EPA 8260B 11D1513 0.050 ND 99.6 4/13/2011 4/14/2011 <br /> Xylenes,Total EPA 8260E 11D1513 0.10 0.81 99.6 4/13/2011 4/14/2011 <br /> Di-isopropyl Ether(DIPE) EPA 8260B 11D1513 0.10 ND 99.6 4/13/2011 4/14/2011 <br /> Ethyl tert-Butyl Ether(ETBE) EPA 9260B 11D1513 0.10 ND 99.6 4/13/2011 4/14/2011 <br /> Methyl-tert-butyl Ether(MTBE) EPA 8260B 11D1513 0.10 ND 99.6 4/132011 4/14/2011 <br /> tert-Amyl Methyl Ether(TAME) EPA 8260B I1D1513 0.10 ND 99.6 4/13/2011 4/14/2011 <br /> tert-Butanol(TBA) EPA 8260B 11D1513 1.0 ND 99.6 4/132011 4/14/2011 <br /> Surrogate 4-Bromofluorobenzene(65-140%) 101% <br /> Surrogate:Dibromofluoromethane(55-14001a) 90 <br /> Surrogate:Toluene-d8(60-140016) 95 <br /> Sample ID:IUD0863-25(AS-12-5-Soil) Sampled:04/07/11 <br /> Reporting Units: mg/kg <br /> Benzene EPA 8260B 11D1531 0.0010 0.0080 1 4/13/2011 4/14/2011 <br /> Ethylbenzene EPA 82608 11D1531 0.0010 0.025 1 4/132011 4/14/2011 <br /> Toluene EPA 8260B 11D1531 0.0010 0.0027 1 4/13/2011 4/14/2011 <br /> Xylenes,Total EPA 8260B 11D1531 0.0020 0.18 1 4/132011 4/14/2011 <br /> Di-isopropyl Ether(RIPE) EPA 8260B 11D1531 0.0020 ND 1 4/132011 4/14/2011 <br /> Ethyl tert-Butyl Ether(ETBE) EPA 8260B 11 D1531 0.0020 ND 1 4/132011 4/14/2011 <br /> Methyl-tert-butyl Ether(MTBE) EPA 8260B 11DI531 0.0020 0.0068 1 4/132011 4/14/2011 <br /> tert-Amyl Methyl Ether(TAME) EPA 8260B I1D1531 0.0020 ND 1 4/13/2011 4/14/2011 <br /> tert-Butanol(TBA) EPA 82608 11D1531 0.020 0.031 1 4/132011 4/142011 <br /> Surrogate:4-Bromofluoroberizene(80-12001o) 99 <br /> Surrogate:Dibromofluoromethane(80-125%) 106 <br /> Surrogate: Toluene-Z(80-120%) 106 <br /> TestAmerica Irvine <br /> Philip Sanelle <br /> Project Manager <br /> The results pertain only to the samples tested in the laboratory. This mpartsholl not be reproduced, 1UD0863 <br /> except in full,without written permission from Test4merica. <Page 15 of 37> <br />