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11 M-oz <br /> PLANATION EAST FREMONT STREET <br /> Groundwater monitoring well <br /> Groundwater elevation contour <br /> in feet referenced to mean sea -------- <br /> level(ft msl) Arrows indicate 5S11 i - <br /> approximate groundwater flow -2g 42 i �--�� i PIanter 1 <br /> direction 980 <br /> <25 <br /> S 4fWell designation ,�\ i <br /> .i8-45—Groundwater elevation,ft msl Existing <br /> 2 1 —Benzene concentrations in ground- ,ji ,j1\ i i'Canopy USTsi <br /> <0 50,\\,water in parts per billion(ppb) i �i ,\\ i C1 i (YP) <br /> MTBE concentrations to ground- Forrrter U Ts,' i S4 4 <br /> water in ppb by EPA Method i' i' i _ -28.45 <br /> 8260 21 <br /> <x Not detected at detection limit xiX <0 50 y <br /> Approx hydraulic gradient= 0 0007 <br /> 2844i �I <br /> � 1 CEJ <br /> S-3 <br /> 2$'38 Waste Otl Tank\.\ ` i i 'Cnd <br /> <0 5 0 �.\\ ---- _- _----------! �1 <br /> Station Building . -28.42 <br /> `. and Dispenser Island(typ) �] <br /> ,\ Lube Bays <br /> Cinder Block ,, j .28.40 <br /> N <0 50 <br /> \" <5 0 <br /> -28.40 <br /> Scale(ft) ON STET FIGURE <br /> 0 15 30 60 2 <br /> in <br /> a <br /> Shell-branded Service Station © Groundwater Contour/ <br /> 2494 East Fremont Street Chemical Concentration Map <br /> Stockton, California <br /> C A M B R I A May 1,2002 <br />