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1 I <br /> CAMB RIA <br /> Table 2. Groundwater Extraction System Analyheal Results- Shell-branded Service Station,Incident#98995874, 341'East Main Street, <br /> Ripon, California II <br /> I <br /> Totalizer Meter <br /> Sample Reading TPHg Benzene MTBE TBA Ethanol <br /> Date (gallons) i (Concentrations to ppb) <br /> Abbreviations Notes <br /> TPHg=Total petroleum hydrocarbons as gasoline Ethanol analyzed by EPA Meth�d 8260 <br /> MTBE=Methyl tertiary butyl ether,analyzed by EPA Method 8260 m=Below detection limit of n ppb <br /> TBA=Tertiary butyl alcohol by EPA Method 8260 a=Laboratory noted that the result does not match a typical gasoline pattern <br /> DIPS=Di-isopropyl ether b=Laboratory detected toluene at 0 5 ppb by EPA Method 8015M18020M, <br /> ppb=Parts per billion and at 0 60 ppb when venfed by EPA Method 8260 <br /> NA=Not available c=Laboratory also detected xylenes to the sample <br /> d=System shut down II <br /> I <br /> I <br /> I <br /> I <br /> I <br /> I <br />� I <br /> i <br /> I 1 <br /> t <br /> g lnpon341 mrgentable xis Page'04 <br />