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WELL CONCTIONS <br /> Shell-branded SWVice Station <br /> 6131 Pacific Avenue <br /> Stockton, California <br /> Wlc#204-7525-0104 <br /> MTBE MTBE Depth to Depth to GW SPH DO <br /> Well ID Date TPPH B T E X 8020 8260 TOCWater SPM Elevation Thickness Reading <br /> u !L u !L u IL u 1L u 1L u 1L u !L MSL ftft MSL ft m <br /> 1fEW-2 07J2411999,,I,, 5 OM 1 2 408 1 14 O01] 1 406 1 14,004 340 S t00 NA 32 47 NA AIA D D6 NA <br /> =Chromatogram pattern indicates an unidentified hydrocarbon <br /> Abbreviations <br /> TPPH=Total petroleum hydrocarbons as gasoline by modified EPA Method 8015 <br /> TEPH=Total petroleum hydrocarbons as diesel by modified EPA Method 8015 <br /> BTEX=benzene toluene ethylbenzene xylenes by EPA Method 8020 <br /> MTBE=methyl-tertiary-butyl ether by EPA Method 8020 <br /> TOC=Top of Casing Elevation <br /> SPH=Separate-Phase Hydrocarbons <br /> GW=Groundwater <br /> DO=Dissolved Oxygen <br /> ugJL=parts per billion <br /> msl=Mean sea level <br /> ft=Feet <br /> >n=Below detection limit <br /> Notes <br /> `=Positive response for petroleum hydrocarbons as gasoline,is due to the presence of an unknown hydrocarbon,not gasoline <br /> "=Separate Phase hydrocarbon skimmer in well Measurements collected after skimmer removal <br /> Dissolved Oxygen readings given prior to well purging <br /> 5 <br />