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03-Sep-03 <br /> EXPLANATION <br /> Groundwater monitoring well <br /> ® Product dispenser number <br /> Groundwater elevation contour in feet <br /> referenced to mean sea level (ft ms]) <br /> Arrows indicate approximate groundwater <br /> flow direction <br /> -3344 Groundwater elevation in ft msl <br /> (<0.50) Benzene concentration in parts per <br /> billion(ppb) <br /> (190) MTBE concentration in ppb <br /> <x Not detected at reporting limit x <br /> High Rise Sign <br /> Approximate hydraulic gradient= 0 006 <br /> Trash enclosure <br /> MW-2 <br /> 36 69 Building <br /> (<0.50) <br /> (<O.sO)et�11 Car� <br /> i <br /> �0 Current and Former Wash 03 <br /> UST Location a" <br /> zz/'� <br /> Vacuum <br /> Atr/water <br /> �b o <br /> MW-1 Canopy <br /> -3690 <br /> 7 (<0 50) <br /> -36.64 �(50) 8 0 <br /> -36.6 <br /> (<0 so) o <br /> (<o so) J/ � D <br /> Dispenser Island(tip) <br /> MW-4 <br /> -36.63 <br /> (<0.50) Planter <br /> -(090) <br /> WATERLOO ROAD <br /> Scale(ft) FIGURE <br /> 0 15 30 60 <br /> rn <br /> Base map from Fupro map dated 11 Nov 94 2-1 <br /> Shell-branded Service Station Groundwater Contour/ <br /> 4315 Waterloo Road G Chemical Concentration Map <br /> Stockton, California <br /> C A M B R I A July 11, 2003 <br />