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WALL CONCENTRATIONS j <br /> Former Shell Service Station <br /> 1267 Country Club <br /> Stockton, CA <br /> MTBE MTBE II Depth to (DW <br /> Well ID Date TPPH TEPH B T E X 802011 8260 TBA DIPE ETBE TAME EDB 1,2-DCA Ethanol Methanol TOC Water Elevation <br /> u IL u IL u /L u IL u /L u IL u IL u !L ug/L)( (ug/L u !L (ug/L (u 1L u 1L u IL II u 1L MSL ft (MSL) <br /> Abbreviations �1 <br /> TPFH=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 /> DIPE=Di-isopropyl ether analyzed by EPA Method 82608 <br /> ETS E=Ethyl tertiary butyl ether analyzed by EPA Method 82608 <br /> TAME=Tertiary amyl methyl ether analyzed by EPA Method 8260E <br /> TSA =Tertiary butyl alcohol analyzed by EPA Method 82608 <br /> EDB=Ethylene dibromide analyzed by EPA Method 8260E <br /> 1 2-DCA=1 2-Dichloroethane analyzed by EPA Method 8260B <br /> TO( =Top of Casing Elevation <br /> SPH=Separate-Phase Hydrocarbons <br /> GW=Groundwater <br /> ugh =Parts per billion <br /> MSE-=Mean sea level <br /> ft =Feet <br /> <n Below detection limit <br /> (D)=Duplicate sample <br /> NA=Not applicable <br /> ND=Not detected at or above the minimum quantitation limits <br /> Notes <br /> a=This sample was analyzed outside of EPA recommended hold time <br /> i <br /> b=TEPH with Silica Gel cleanup <br /> c=Hydrocarbon reported does not match the pattern of the laboratory s standard <br /> d=Hydrocarbon reported is to the early Diesel range and does not match the laboratory's Diesel standard <br /> e=The concentration reported reflect(s)individual or discrete unidentified peaks not matchingl a typical fuel pattern <br /> ,l <br /> f=Sample was reanalyzed past hold time with surrogate recoveries within control limits and results of X50 ug/L <br /> lI <br /> g=Phthalate peaks were found in the sample which are not believed to be(elated to the client sample Iflithey were eliminated from the DRO analysis the concentration would be 36 ug/L <br /> _ 'ITBE by EPA method 8260 was run out of recommended hold time value should be considered an estimate <br /> Ethanol analyzed by EPA Method 82606 <br /> Site surveyed January 7 2002 by Virgil Chavez Land Surveying of Vallejo CA <br /> w <br /> �e 7 . . <br />