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WELL CONATRATIONS <br /> Shell-branded Service Station <br /> 2575 Country Club <br /> Stockton, CA <br /> Wlc #204-7524-3505 <br /> MTBE MTBEDepth to GW SPH <br /> Well ID Date TPPH B T E X 8020 8260 TOC Water Elevation Thickness <br /> u IL u IL u IL u /L u IL u IL u 11.. MSL ft MSL ft <br /> Abbreviations <br /> TPPH=Total petroleum hydrocarbons as gasoline by modified EPA Method 8015 <br /> BTEX= benzene,toluene,ethylbenzene,xylenes 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 /> ug/L=parts per billion <br /> ms1= Mean sea level <br /> ft= Feet <br /> <n= Below detection limit <br /> D= Duplicate sample <br /> NA= Not applicable <br /> Notes <br /> a= Depth to ground water measurement and reference elevation datum is top of boot(adapted for vapor extraction)at well head <br /> Sannella Pier well elevation referenced from Survey Marker <br /> Port= Indicates ground water sample collected at the well head sampling port <br /> Down = Indicates ground water sample collected inside the well with a bailer <br /> b= Not sampled due to insufficient water capacity on the truck <br /> c= Result reported was generated out of hold time <br /> Page 19 <br />