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WELL COANTRATIONS • <br /> Former Texaco Service Station <br /> 440 W. Charter Way <br /> Stockton, CA <br /> MTBE MTBE Depth to GW SPH DO <br /> Well ID Date TPPH TEPH B T E X 8020 8260 TOC Water Elevation Thickness Reading <br /> u IL u IL (ug/L _L/L) u IL u IL u /L u IL MSL ft MSL ft m <br /> Abbreviations <br /> TPPH=Total petroleum hydrocarbons as gasoline by EPA Method 8260B, prior to May 17,2001, 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 82608, prior to May 17, 2001, analyzed by EPA Method 8020 <br /> MTBE=Methyl-tertiary-butyl ether <br /> TOC=Top of Casing Elevation <br /> SPH=Separate-Phase Hydrocarbons <br /> GW=Groundwater <br /> DO=Dissolved Oxygen <br /> ppm= Parts per million <br /> ug/L=Parts per billion <br /> MSL=Mean sea level <br /> ft=Feet <br /> <n= Below detection limit <br /> NA=Not applicable <br /> ND=Not detected at or above the minimum quantitation limit <br /> Notes <br /> a=Result reported was generated out of hold time <br /> b=Well not sampled due to lack of access agreement <br /> c=Hydrocarbon does not match pattern of laboratory's standard <br /> Site surveyed(except MW-8)on February 20,2002, by Virgil Chavez Land Surveying of Vallejo, California <br /> Wells MW-8, MW-11-82, MW-11-122, MW-18-80, MW-18-120, MW-19-81,and MW-19-120 surveyed September 20, 2002, by Virgil Chavez <br /> Land Surveying of Vallejo, California <br /> F <br /> Page 33 <br />