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29-Mar-Q1 <br /> 3 <br /> EXPLANATION Naw EAST FREMONT STREET low <br /> Groundwater monitoring well <br /> Groundwater elevation contour in — — — — — — — — — — — — — — — — — <br /> �� teet reterenced to mean sea level <br /> --------------- <br /> (ft msl) Arrows indicate 5=1 <br /> approximate groundwater flow -26 07 Planter <br /> direction 153 <br /> Well designation <250 <br /> S-3 ' <br /> -26 10—Groundwater elevation, ft msl <br /> 195--Benzene concentrations in ground- <br /> (363 <br /> round- <br /> (36 3�water in parts per billion(ppb) `>`� I Existing 1 <br /> Former USTs^�� lQ USTs <br /> MTBE c,oncentratiow,in ground- <br /> water in ppb by EPA Method <br /> 8020, results in parentheses are >\ / Can <br /> analyzed by FPA Method 8260 j' ;^�\ / -- -- ---- <br /> �\ ,�\ ;�./ �a , I <br /> <x Not detected at detection limit x �' , . // -2612 I <br /> Approx hydraulic gradient=0 001 \`y� ,'fes <0 500 I <br /> o/Waste Oil Tank _V15I <br /> / <br /> ,M <br /> S3 <br /> -260 loelo" <br /> <0 500 L--- -------------------------<2 SD Station Building an <br /> Lube Bays <br /> _ BDisIsland(typ) <br /> / <br /> Block <br /> wall <br /> IN <br /> N� I <br /> S_2 <br /> -2623 <br /> <0 500 <br /> <2 00 I <br /> RINCON STREET <br /> Scale (ft) FIGURE <br /> o 15 30 602 <br /> I 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 February 5, 2001 <br />