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TestAmerica <br /> THE LEADER IN ENVIRONMENTAL TESTING 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: 03/29/11-03130/11 <br /> Emeryville,CA 94608 Report Number: IUC3240 Received: 03/31/11 <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:IUC3240-05(AS-2-5-Soil) Sampled:03/29/11 <br /> Reporting Units: mg/kg <br /> Benzene EPA 8260B 11DO275 0.0010 0.0079 0.996 4/4/2011 4/42011 <br /> Ethylbenzene EPA 82608 IID0275 0.0010 ND 0.996 4/42011 4/4/2011 <br /> Toluene EPA 8260B 11D0275 0.0010 ND 0.996 4/42011 4/42011 <br /> Xylenes,Total EPA 8260B 11 D0275 0.0020 ND 0.996 4/4/2011 4/42011 <br /> Di-isopropyl Ether(RIPE) EPA 8260B I ID0275 0.0020 ND 0.996 4/4/2011 4/42011 <br /> Ethyl tert-Butyl Ether(ETBE) EPA 82606 11D0275 0.0020 ND 0.996 4/4/2011 4/42011 <br /> Methyl-tert-butyl Ether(MTBE) EPA 8260B I ID0275 0.0020 ND 0.996 4/42011 4/4/2011 <br /> tert-Amyl Methyl Ether(TAME) EPA 82608 I ID0275 0.0020 ND 0.996 4/4/2011 4/42011 C <br /> tert-Butanol(TBA) EPA 8260B 11DO275 0.020 ND 0.996 4/4/2011 4/4/2011 <br /> Surrogate:4-Bromofluorobenzene(80-120%) 100% <br /> Surrogate:Dibromofluoromethane(80-125%) 104% <br /> Surrogate.-Toluene-d8(80-12091a) 105% <br /> Sample ID:IUC3240-06(AS-2-10-Soil) Sampled:0329/11 <br /> Reporting Units: mg/kg <br /> Benzene EPA 8260B 11D0429 0.050 0.97 99.7 4/5/2011 4/62011 - <br /> Ethylbenzene EPA 8260B IID0429 0.050 0.69 99.7 4/52011 4/62011 <br /> Toluene EPA 82608 11D0429 0.050 0.11 99.7 4/5/2011 4/62011 <br /> Xylenes,Total EPA 8260B I1D0429 0.10 1.0 99.7 4/52011 4/62011 <br /> Di-isopropyl Ether(RIPE) EPA 8260B I ID0429 0.10 ND 99.7 4/52011 4/62011 <br /> Ethyl tert-Butyl Ether(ETRE) EPA 8260B 11D0429 0.10 ND 99.7 4/52011 4/6/2011 <br /> Methyl-tert-butyl Ether(MTBE) EPA 82608 I ID0429 0.10 ND 99.7 4/5/2011 4/62011 <br /> tert-Amyl Methyl Ether(TAME) EPA 8260B I ID0429 0.10 ND 99.7 4/5/2011 4/62011 C <br /> tert-Butanol(TBA) EPA 8260B 11D0429 1.0 ND 99.7 4/52011 4/62011 <br /> Surrogate:4-Bromofluorobenzene(65-140%) 100% <br /> Surrogate:Dibromofluoromethane(55-1400%) 81% <br /> Surrogate:Toluene-d8(60-140¢1.) 84% <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 permissionfrom (UC3240 Gjra 6 0 23> <br /> f TestAmerica. g <br />