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II r <br /> Table 2 <br /> Groundwater Analytical Results-Oxygenate Compounds <br /> Tosco(Unocal)Service Station#5886 <br /> 2701 West March Lane <br /> Stockton,California it <br /> a <br /> I If J 11 i i <br /> EXPLANATIONS <br /> IGroundwater laboratory analytical data prior to March 25, 1998,were compiled from reports prepared by MPDS Services,Inc <br /> I <br /> TBA=Tertiary butyl alcohol <br /> MTBE=Methyl tertiary butyl ether <br /> DIVE=Di-isopropyl ether <br /> b <br /> I <br /> ETBE=Ethyl tertiary butyl ether <br /> TAME=Tertiary amyl methyl ether <br /> 1,2-DCA= 1,2-Dichloroethane <br /> EDB=Ethylene dibromide <br /> (ppb)=Parts per billion <br /> =Not Measured/Not Analyzed <br /> ND = Not Detected <br /> ' Detection limit raised Refer to analytical reports <br /> I <br /> I Methanol by EPA Method 8015 Modified was ND " Ir <br /> ` Laboratory report indicates sample required reanalysis past hold time due to failing internal standard•n first run First analysis was within hold time <br /> II 11 <br /> ' Laboratory report indicates sample was onginally analyzed within holding time Re-analysis for confirmation or dilution was performed past the recommended holding time <br /> S Laboratory report indicates sample was analyzed outside the EPA recommended holding time 6 <br /> ANALYTICAL METHOD <br /> ,I III IIS <br /> EPA Method 8260 for Oxygenate Compounds <br /> II <br /> II Ii III <br /> a <br /> p <br /> I <br /> II <br /> it <br /> I Ili <br /> II I <br /> I� I <br /> I <br /> I <br /> ii II <br /> I <br /> 02/06/01 <br /> 5886 80137 <br />