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os Jul 01 <br /> LANATION EAST FREMONT STREET <br /> Groundwater monitoring well <br /> Groundwater elevation contour __— —__ —__ _ - <br /> F _ <br /> in feet referenced to mean sea - <br /> level(ft msl) Arrows indicate S-t ' -i <br /> approximate groundwater flow -25 73+ i Planter <br /> dirCLtton 1,800 �� 1 <br /> h <br /> S_3 Well designation <250 ryh^ <br /> -26 lU—Groundwater elevation,tt mJ <br /> 1 95 --Benzene concentrations in ground- i i � i Existing <br /> 36 3 \water in parts per billion(ppb) Fortner USM, i <br /> MTBE concentration-s in ground- <br /> water in ppb by EPA MethodJ L <br /> 8260 Canopy <br /> <x Not detected at detection limit x \� ^��ii� i�� T -2581 <br /> <0 50 <br /> Approx hydraulic,gradient=0 002 �i �, <0 50 +-121 <br /> Waste Oil Tank' ' <br /> -2573 <br /> <0 50 <br /> Station Building and <br /> Lube Bays Dispenser Island(typ) <br /> y <br /> /Cinder Block :LSg� <br /> wall <br /> N <br /> 5_2 <br /> -2599 <br /> <5 0 <br /> RINCON STYE <br /> Scale(ft) T FIGURE <br /> 6 15 30 60 <br /> 21 <br /> i ti <br /> 0 <br /> 0 <br /> Shell-branded Service Station Groundwater Contour/ <br /> 2494 East Fremont Street a <br /> Stockton California Chemical Concentration Map <br /> C A M B R I A May 14, 2001 <br />