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Table 1 rase 2 of z <br /> Groundwater Monitoring Data <br /> ARCO Service Station No 760, 225 South Cherokee Lane, Lodi, California <br /> i <br /> I <br /> Well Elevation Static' Elevation <br /> Sample of Top Water of Ethyl- Total <br /> Number Date of Casing Level Groundwati,r TPHG TPHD Benzene Toluene benzene Xylenes TOG Observations <br /> TBLB <br /> 03/21/94 NM NM NM <10 NA <03 <0 3 <0 3 <0 5 NA NA <br /> 06/24/94 NM NM NM <10 NA <03 <0 3 <0 3 <0 3 NA NA <br /> 09/27/94 NM NM NM <50 NA <05 <0 5 <0 5 <05 NA NA <br /> 12/02/94 NM NM NM <50 NA <05 09 <0 5 <0 5 NA NA <br /> 02/13/95 NM NM NM <50 NA <05 <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 1 -Measured below top of casing <br /> HG-Total petroleum hydrocarbons as gasoline TPHD-Total petroleum hydrocarbons as diesel <br /> G-Total oil and grease <br /> -Free product NA-Not analyzed NM-Not measured TBLB -trip blank <br /> *-EPA Method 413 2(Infrared Spectrometry) **-EPA Method 413 1 (Gravimetric Analysis) <br /> ***-The sample contains a lower boiling point hydrocarbon mixture quantified as gasoline,the chromatogram does 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 /> Below detection limits used by laboratory <br /> I <br /> N bds10805414203101099GC1 x!s Revision 2 1/24/96 <br />