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ioN � <br /> WELL CONITRATI s <br /> Shell-branded Service Station <br /> 3725 South Tracy Boulevard <br /> Tracy, CA <br /> MTBE MTBE Depth toGW 5PH DO <br /> Well ID Date TPPH TEPH B T E X 8020 8260 TQC Water Elevation[hickness Reading <br /> u L u L u L u IL u IL u IL u IL u IL MSL ft ft MSL m <br /> Abbreviations <br /> TPPH=Total petroleum hydrocarbons as gasoline by EPA Method 82608, prior to January 23,2001, analyzed by EPA Method 8015 <br /> TEPH=Total petroleum hydrocarbons as diesel by modified EPA Method 8015 <br /> BTEX=Benzene,toluene,ethylbenzene,xylenes by EPA Method 8260B, pnor to January 23,2001,analyzed by EPA Method 8020 <br /> MTBE=Methyl-tertiary-butyl ether <br /> TOC=Top of Casing Elevation <br /> SPH =Separate-Phase Hydrocarbons <br /> f GW=Groundwater <br /> DO=Dissolved Oxygen <br /> RW=Rediscovered well <br /> ug1L=Parts per billion <br /> ppm=Parts per million <br /> MSL=Mean sea level <br /> ft=Feet <br /> I <br /> m=Below detection limit <br /> D=Duplicate sample <br /> NA=Not applicable <br /> Notes <br /> Wells MW-1 through MW-3,were decommissioned in July 1990 dunng station reconstruction and replaced by MW-1A through MW-3A in August 1990 <br /> Site surveyed February 24,2002, by Virgil Chavez Land Surveying of Vallejo, California <br /> Page 7 <br />