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i <br /> WELL CONCENTRATIONS <br /> Shell-branded Service Station <br /> 2494 Fremont Street <br /> Stockton, CA <br /> Wic #204-7524-1806 <br /> MTBEJ MTBEDepth to GW SPH <br /> WellID Date TPPH B T E X 8020 8260 TOC Water Elevation Thickness <br /> (uglL) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (ug/L) (MSL) (ft ) {MSL) (ft) <br /> Abbreviations <br /> TPPH=Notal petroleum hydrocai bons as gasoline by modified EPA Method 8015 <br /> BTEX= benzene,toluene,ethylbenzene,xylenes by EPA Method 8020 <br /> MTBE = methyl-tertiary-butyl ettiler <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 /> Notes <br /> a = Pre-Development water level <br /> b= Post-Developmetn water level <br />�I <br /> i <br /> I <br /> Page 2 <br />