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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, MALYTICAL 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 /> Sequoia Analytical(ELAP#1271 & 12 10) <br /> i=Elevated detection limit Refer to analytical report <br /> s=MTBE Concentrations from MW-3 used for Mass Removal Calculations <br /> 3=Chromatogram pattern Gasoline C6-C12 <br /> a=MTBE by 8020 <br /> MTBE Removed(lbs)=MTBE concentration(ppb) *gallons removed* 8 33Abs/gal H2O/1 x 109 ppb <br /> MTBE Concentration= (MTBE Concentration MW-3-PRE+MTBE Concentration MW-3-POST)12 <br /> 0 140245 02 <br />