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01 Aug 01 <br /> LOUISE AVENUE <br /> lanter <br /> I — — <br /> Former USTs � Existing USTs planter <br /> dispenser <br /> p <br /> islands <br /> MW-1 f/e /i/♦ /� <br /> 14 64 <br /> flit -[0.500 <br /> 214 <br /> ` 1462 W <br /> >\ [0.500 f� <br /> t5 00 <br /> o storage <br /> 1 building <br /> `S dispenser <br /> trash islands <br /> enclosure <br /> ar <br /> planter was �°� Z <br /> 1 .40 <br /> 1 711*� I <br /> - storage <br /> MVS,2 containers <br /> 1436 <br /> <0 500 <br /> <5 00 <br /> EXPLANATION <br /> Groundwater Monitoring well <br /> Groundwater elevation contour in feet referenced <br /> to mean sea level (ft msl) Arrows indicate <br /> i approximate groundwater flow direction –N- <br /> 1436 Groundwater elevation in ft msl <br /> 4)500 Benzene concentration in parts per billion(ppb) <br /> <5 00 MTBE concentration in ppb Analysis by EPA <br /> Method 8260 FIGURE <br /> <x Not detected at detection limit x Scale(ft) <br /> Approximate hydraulic gradient=0 002 0 20 40 80 2 <br /> M <br /> - __jN <br /> hell-branded Service Station Groundwater Contour/Chemical <br /> 1071 North Main Street Concentration Map <br /> Manteca, California <br /> C A M B R I A April 26, 2001 <br />