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f <br /> ' I 11 <br /> + " 1 <br /> 1 <br /> 1 i <br /> lid I <br /> 1 LEGEND , 1 <br /> r 58-1 through SB-3,Unah Inc Soil Boring,March 1991 <br /> • EB 4 through EB-6, Unah Inc Sod Boring, December 1991 <br /> • EB-8 and EB-11, Unah Inc Sod Boring,April 1992 <br /> ® MW-1 through MW-3,Unah Inc Monitoring Well,June 1992 <br /> Q VW-1, Unah Inc Vapor Extraction Well,Janumy,1993 <br /> A, DTB1 and DT82,EPM Technologies Sod Boring,April 1994 <br /> • 313-1 through G13-5,Geocon Sad Bonng,ruly 1994 <br /> I Q GB-6/VW-2 through GB-10/VW­3 Geocon Soil Boring/ <br /> Vapor Extraction Weil,November 1994 <br /> ® MW-4 and MW-5,Geocon Monitoring Well,November 1954 <br /> o GB-11,Geocon Soil Boring,November 1994 <br /> �•�--mw-+Trace of Slant Soil BonngNapor Extraction Well <br /> Approximate Lateral Orientation of Soil Samples <br /> LL] Collected from Slant Boring <br /> � 1 <br /> Z ------ Groundwater Elevation Contour(Interval=0 10 ft) <br /> W owl <br /> :> Approximate Groundwater Gradient <br /> F_6_2Relative Elevation(MSL)of Groundwater <br /> measured January 11, 1996" <br /> r 'Elevations are relative to Benchmark 516 <br /> r <br /> t� r at a datum of 45 94 ft MSL <br /> r <br /> TPHg = <50 Q <br /> TPHd = <50 TPHg = Total Petroleum Hydrocarbons as Gasoline <br /> MTBE B y 6 2 TPHd = Total Petroleum Hydrocarbons as Diesel <br /> } i IATBE = Methyl Tert-Butyl Ether <br /> MW"G r B = Benzene <br /> LU r <br /> i All Concentrations in Micrograms per life (ppbl <br /> r <br /> r <br /> r I <br /> i NOTES Estimated Locations of Former Pump Islands/ <br /> r Canopy, Underground Storage Tanks and Service <br /> + Station Structure are shown on a Douglas Oil <br /> r I Company Site Map dated April 1968 <br /> r <br /> a <br /> cq { I <br /> ENVIRONMENTAL CONSULTANTSINCORPORATE5 <br /> 3235 SUN RISE BLVD —SUITE 6—RANCHO CORDOVA CALIF6RNIA55i42 <br /> PHONE 916 852 9018—FAx 916 BS2 g132 <br /> Former Texaco Service Station Site <br /> 305 South Hutchins Street <br /> Lodi, California' I ' 1 I <br /> Groundwater Elevation Map,& Selected <br /> Or anis Chemicals in Groundwater,i 11/1 1196 <br /> I S8080-06-02 February 1996 Figgie ? <br /> I , <br /> I <br />