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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,Caltforma <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#1271&1210) <br /> i=Elevated detection ItmiL Refer to analytical report <br /> z=MTBE Concentrations from MW-3 used for Mass Removal Calculations <br /> }=Chromatogram pattern Gasoline C6-C 12 <br /> =MTBE by 8020 <br /> s=This Sample was analyzed outside the EPA recommended holding time <br /> MTBE Removed(lbs}=MTBE concentration(ppb) *gallons removed*8 337lbs/gal H2O/1 x 109 ppb <br /> I <br /> MTBE Concentration= (MTBE Concentration MW-3-PRE+MTBE Concentration MW-3-POST)/2 <br /> 140245 02 <br />