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. WELL CCONTRATIONS <br /> Former Shell Service Station <br /> 1267 Country Club <br /> Stockton,CA <br /> MTBE MTBE ) Depth to GW <br /> Well Date TPPH TEPH B T E X 8020 8260 TBA DIPE ETBE TAME EDB 1,2-DCA Ethanol Methanol TOC Water Elevation <br /> u 1L u 1L u IL u IL u 1L u IL U IL u IL u !L u IL) u /L u /L ug/L (ug/L (ug/L (ug/L I MSL ft (MSL) <br /> Abbreviations <br /> TPPH=Total petroleum hydrocarbons as gasoline by EPA Method 82608 prior to January 29 2001 analyzed by EPA Method 8015 <br /> TEPH=Total petroleum hydrocarbons as diesel by modified EPA Method 8015 <br /> BTEX=Benzene toluene ethylbenzene,xylenes by EPA Method 82608 prior to January 29 2001 analyzed by EPA Method 8020 <br /> MTBE=Methyl tertiary butyl ether <br /> TBA=Tertiary butyl alcohol <br /> DIPE=Di-isopropyl ether <br /> ETRE=Ethyl tertiary butyl ether <br /> TAME=Tertiary amyl methyl ether <br /> EPB=Ethylene dibromide <br /> 12 DCA=12 Dichloroethane <br /> TOC=Tap of Casing Elevation <br /> SPH=Separate-Phase Hydrocarbons <br /> GW=Groundwater <br /> ug1L=Parts per billion <br /> MSL=Mean sea level <br /> ft =Feet <br /> an=Below detection limit <br /> (D)=Duplicate sample <br /> NA=Not applicable <br /> ND=Not detected at or above the minimum quantitation limits <br /> I <br /> Notes <br /> "MTBE by EPA method 8260 was run out of recommended hold time,value should be considered an estimate <br /> a=This sample was analyzed outside of EPA recommended hold time <br /> b=TEPH with Silica Get cleanup <br /> c=Hydrocarbon reported does not match the pattern of the laboratory's standard <br /> d=Hydrocarbon reported is in the early diesel range and does not match the laboratory's diesel standard <br /> Site surveyed January 7 2002 by Virgil Chavez Land Surveying of Vallejo CA <br /> Page 6 <br />