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WELL CONSTRATIONS <br /> Shell-branded Service Station <br /> 4445 North Pershing Avenue <br /> Stockton, CA <br /> Wic #204-7524-2408 <br /> MTBE MTBE Depth to GW SPH <br /> Well ID Date TPPH B T E X 8020 8260 1 TOC Water Elevation Thickness <br /> (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (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= methyi-tortiary-butyl ether <br /> TOC=Top of Casing Elevation <br /> SPH=Separate-Phase Hydrocarbons <br /> GW= Groundwater <br /> ug/L=parts per billion <br /> msl=Mean sea level <br /> ft= Feet <br /> <n=Below detection limit <br /> D=Duplicate sample <br /> NA= Not applicable <br /> Page 9 <br />