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Table 1 - Groundwater Removal and Analytical Data <br /> Tosco(Former BP)Service Station No. 11192 <br /> 1403 Country Club Boulevard <br /> Stockton,California <br /> EXPLANATION: ANALYTICAL METHODS: <br /> ppb=parts per billion TPHg = Total Petroleum Hydrocarbons as gasoline according to EPA Method 8015 Modified <br /> ND=Not Detected Benzene,Toluene,Ethylbenzene,and Total Xylenes according to EPA Method 8020 <br /> --=Results Pending MTBE=Methyl tertiary butyl ether according to EPA Method 8260 <br /> *=Not Analyzed <br /> ANALYTICAL LABORATORY: <br /> Sequoia Analytical(ELAP 41271 & 12 10) <br /> 1=Elevated detection limit.Refer to analytical report <br /> 2=MTBE Concentrations from MW-3 used for Mass Removal Calculations <br /> 3=Chromatogram pattern:Gasoline3 C6-C12 <br /> MTBE Removed(lbs.)=MTBE concentration(ppb) *gallons removed*8.3371bs/gat H2O/1 x 109 ppb <br /> MTBE Concentration= (MTBE Concentration MW-3-PRE+MTBE Concentration MW-3-POST)/2 <br /> 140245.02 <br />