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Talk 1 e2ot2 <br /> Groundwater Monitoring Data <br /> ARCO Service Station No. 760, 225 South Cherokee Lane, Lodi, California <br /> Well Elevation Static' Elevation <br /> Sample of Top Water of Ethyl- Total <br /> i <br /> Number Date of Casing Level Groundwater TPHG TPHD BenLLne Toluene benzene Xylenes TOG MTBE Observations <br /> TBLB <br /> 03/21/94 NM NM NM <t0 NA <0 3 <0 3 <0 3 <0 5 NA NA <br /> 06/24/94 NM NM NM <10 NA <0 3 <0 3 <0 3 <0 3 NA NA <br /> 09/27/94 NM NM NM <50 NA <0 5 <0 5 <0 5 <05 NA NA <br /> 12/02/94 NM NM NM <50 NA <0 5 0 9 <0 5 <0 5 NA NA <br /> 02/13/95 NM NM NM <50 NA <0 5 <0 5 <0 5 <05 NA NA <br /> Analytical results are in parts per billion Measurements are in feet <br /> Elevation datum is mean sea level ' -Measured below top of casing <br /> PHG-Total petroleum hydrocarbons as gasoline TPHD-Total petroleum hydrocarbons as diesel <br /> OG-Total oil and grease MTBE-Methyl tert-butyl ether <br /> FP-Free product NA-Not analyzed NM-Not measured TBLB-trip blank <br /> *-EPA Method 413 2(Infrared Spectrometry) **-EPA Method 413 1 (Gravimetnc Analysis) <br /> ***-The sample contains a lower boiling point hydrocarbon mixture quantified as gasoline,the chromatogram docs not match the typical gasoline <br /> **** The sample contained a hydrocarbon component that eluted in the diesel range but did not match the typical diesel fingerprint <br /> *****-Method reporting limit was raised due to matrix interference <br /> <-Below detection limits used by laboratory <br /> I <br /> I <br /> 1 <br /> Rcvision 1 6121/96 <br /> N Vis108051142051061496M1 xls <br />