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Table 2 <br /> Groundwater Analytical Results-Oxygenate Compounds <br /> Tosco(Unocal) Service Station#5886 <br /> 2701 West March Lane II <br /> Stockton,California 5 <br /> EXPLANATIONS S <br /> if I� <br /> Groundwater laboratory analytical data prior to March 25, 1998,were compiled from reports prepared by MPDS Services,Inc II <br /> TBA=Tertiary butyl alcohol <br /> MTBE=Methyl tertiary butyl ether <br /> DIPE=Di-isopropyl ether <br /> it �y I <br /> ETRE=Ethyl tertiary butyl ether ii f <br /> TAME=Tertiary amyl methyl ether <br /> 1,2-DCA= 1,2-Dichloroethane <br /> EDB=Ethylene dibromide <br /> (ppb)=Parts per billion <br /> �I <br /> --=Not MeasuredlNot Analyzed <br /> ND = Kot Detected � <br /> i <br /> I� ,I <br /> ' Detection limit raised Refer to analytical reports - �f <br /> 2 Methanol by EPA Method 8015 Modified was ND <br /> 1 Laboratory report indicates sample required reanalysis past hold time due to failing internal standard on first run First analysis was within hold time <br /> ° Laboratory report indicates sample was originally 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 <br /> ANALYTICAL METHOD U n <br /> EPA Method 8260 for Oxygenate Compounds �I i <br /> I <br /> II <br /> II <br /> II d <br /> 5986 x1sl4*7 2 i� AS 0, 108/0 i <br />