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WELL CONONTRATIONS <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 /> WeIIID Date TPPH B T E X 8020 8260 TOCWater Elevation Thickness <br /> u IL u IL u IL u l u IL (u2l) u IL MSL ft MSL ft <br /> VEW-2 42!2712002 insufficient wateC NA I NA I NA I NA I NA 664 1515 -861 NA <br /> Abbreviations <br /> TPPH=Total petroleum hydrocarbons as gasoline by EPA Method 82606,prior to February 27, 2002,by EPA Method 8015 <br /> BTEX= Benzene,toluene,ethylbenzene,xylenes by EPA Method 82608, prior to February 27, 2002, 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 /> msl=Mean sea level <br /> ft=Feet <br /> <n= Below detection limit <br /> D= Duplicate sample <br /> NA=Not applicable <br /> Notes <br /> Site surveyed on January 7,2002, by Virgil Chavez Land Surveying of Vallejo, Califronia <br /> I <br /> Page 9 <br />