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ANI 02 oct-gra <br /> EXPLANATION EAST FREMONT STREET <br /> + Groundwater monitoring well <br /> S-1 <br /> Groundwater elevation contour in -- — — — — _-2507 — — — — — — — — — — — <br /> �� feet referenced to mean sea level (1,950) <br /> (ft ms]) Arrows indicate (<1,000)-----------I <br /> approximate groundwater flow + Planter <br /> direction I I <br /> .2532 Groundwater elevation in ft msl I I I <br /> I I <br /> I I <br /> (1,950) Benzene concentration in parts <br /> per billion(ppb) ^ <br /> (<1,000)MTBE concentration in ppb Existing I <br /> USTs <br /> -251 <br /> Analysis by EPA Method 8020 <br /> <x Not detected at detection <br /> limit x ��\� <br /> Former USTs,,`\ I : —Canopy I <br /> Approx hydraulic gradient=0 002 --- --- <br /> ' (typ) <br /> ' + -25 13 f <br /> (<0 500) I <br /> ' o (<250) <br /> Waste Oil Tankto <br /> �..i <br /> r <br /> I I <br /> S-3 ❑ <br /> -2518 '- - -- --- --Q}— -252 ❑ <br /> I <br /> (<0 500) <br /> I <br /> (<2 50) Station Building and ------ -------------------------- <br /> Lube Bays <br /> , CrJ <br /> I y <br /> i Dispenser Island <br /> (typ) <br /> �Cinder BIock wall <br /> N I <br /> -25 3 <br /> — S-2 I <br /> -25 32 <br /> + (<0.500) I <br /> (<2 50) <br /> RINCON STREET <br /> Scale <br /> FIGURE <br /> FINE <br /> 0 15 30 60 <br /> 1 Inch=30 Feet 2 <br /> 0 <br /> Shell-branded Service Station <br /> Groundwater Contour/ <br /> i° 2494 East Fremont Street G Chemical Concentration Ma <br /> Stockton, California P <br /> Incident No 98996181 C A M B R I A August 2, 2000 <br />