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I <br /> CAMBRIA <br /> II <br /> Table 1. Groundwater Analytical0ata- Oxygenate Compounds- Shell-branded Service Station Incident#989951874, 341 E Main Street,Ripon,California <br /> II <br /> MTBE by MTBE by <br /> Sample Date 1,2-DCA EDB EPA 8020 EPA 8260 Ethanol t-Butanol DIPE ETRE TAME Methanol TBA <br /> ID _Sampled a - - (Concentrations in ppb) 101 <br /> 04/17/00 <0 500 <1 00 2,060 2,100 <8,340 --- <33 3 <33 3 <33 3 <1,000 <1,670 <br /> 07/21/00 <1.00 <1,00 <2.50 <100 <400 4.00 <100 <100 <1,000 <20 0 <br /> Abbreviations and Notes <br /> 1,2-DCA=1,2-dichloroethane by EPA Method 826013/8021B <br /> EDB=Ethylene dibromide by EPA Method 8260/8021B <br /> MTBE=Methyl tert butyl ether by EPAIMethod 8020 or 8260 <br /> Ethanol and t-butanol by EPA Method 8260 <br /> DIPE=Di-isopropyl ether by EPA Method 8260 <br /> ETBE= Ethyl tert-butyl ether by EPA Method 8260 <br /> TAME=Tert amyl methyl ether by EPA'Method 8260 <br /> Methanol by modified EPA Method 8015 <br /> TBA=Tert-butyl alcohol by EPA Method 8260 <br /> ppb=Parts per billion <br /> <n=Below detection limit of n ppb <br /> =Not analyzed <br /> a=Sample was analyzed past EPA recommended holding time <br /> I <br /> I ' <br /> I i <br /> ' I <br /> I 1 4 <br /> l I I <br /> 9 lnpo041..Igmlgmtable xls Page 6 ut 6 • <br />