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12-Aug-05 <br /> LOWSE AVENUE <br /> Planter <br /> I - - <br /> Former USTs MW-1 Fanner USTPlanter <br /> 9.8] s <br /> c0.50 <br /> 1.2 <br /> Dispenser <br /> Islands <br /> % <br /> MW-3 <br /> 9.86 W <br /> <0 50 W <br /> <0 50 I� <br /> Trash • Dislanser <br /> • I <br /> Enclosure <br /> 8 <br /> Islands -- <br /> Planter <br /> MW-2 <br /> 9.60 I <br /> <0 50 <br /> <0 50 I <br /> fl <br /> Co or ine <br /> 6` <br /> EXPLANATION <br /> -� Groundwater Monitoring well <br /> Groundwater elevation contour in feet referenced <br /> j� <br /> / to mean sea level(ft msl) Arrows indicate <br /> approximate groundwater flow direction <br /> 9.15 Groundwater elevation in ft msl r <br /> <050 Benzene concentration in parts per billion(ppb) <br /> <0 50 MTBE concentration to ppb <br /> <XNot detected at reporting limit x Scale(ft) FIGURE <br /> Approximate hydraulic gradient=0 002 <br /> 0 20 40 80 2 <br /> N <br /> Dormer Shell Service Station Groundwater Contour/ <br /> 71 North Main Street Chemical Concentration Map <br /> Manteca, California <br /> C A M B R I A <br /> .It,ly a, 2005 <br />