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1 <br /> Table 5 <br /> Groundwater Oxygenate Data <br /> Tosco(Former Unocal)Service Station#0123 <br /> ' 1034 Central Avenue <br /> Tracy, Califomia <br /> 'Z.0 0Z.0 yn z.o gra tY�N <br /> ' Tertiary <br /> Boring Depth Date Ethanol butanol MtBE DIPE ETBE TAME Methanol <br /> Number (feet) Sampled (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) (ppb) <br /> tB-4 25 10/06/98 ND ND ND ND ND ND ND <br /> U-5 10/22/98 ND ND ND ND ND ND ND <br /> ' U-6 10/22/98 ND ND ND ND ND ND ND <br /> TPH =Total petroluem hydrocarbons <br /> ' MtBE =Methyl tertiary butyl ether <br /> DIPS =Di-idopropyl ether <br /> ETBE =Ethyl tertiary butyl ether <br /> ' TAME =Tertiary amyl methyl ether <br /> ppb =Parts per billion <br /> ND =Not detected <br /> NA =Not analyzed <br /> ' See certified analytical reports for Volatile and Semi-volatile Organic Compound results and detection limits <br /> �1 <br /> 1 <br /> 1 <br /> 9100171 A1Anal iTABLE5 12/4198 <br />