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I, <br /> ARCO AM/PM y <br /> ' SERVICE STATION i <br /> PRIVATE ROAD <br /> 0 30 60 <br /> SCALE IN FEEL` <br /> 00 0 <br /> LEGEND <br /> MW--3 <br /> MW-4 SERVICE O (-9.98) -0 GROUNDWATER MONITORING WELL <br /> W (-10.08) GROUNDWATER ELEVATION IN <br /> (-s.ss) STATION 1 FEET ABOVE MEAN SEA LEVEL <br /> F BUILDING 1 <br /> I I ` o .- -10.10— GROUNDWATER ELEVATION <br /> L J N CONTOUR IN FEET ABOVE <br /> DISPENSER W ` O MEAN SEA LEVEL <br /> ISLANDS MW-7 CONTOUR INTERVAL-0.10 FOOT) <br /> UNDERGROUND (-10.21) <br /> USED OIL TANK Q CALCULATED GROUNDWATER <br /> = 0.002 GRADIENT DIRECTION AND <br /> MAGNITUDE IN FOOT PER FOOT <br /> 0 i ILLJ <br /> Li <br /> 1 11 io MW-5 <br /> 4 I!M 0_.3) 1 \ (-10.08) o <br /> 70 <br /> 10 <br /> fl \ ry0 I <br /> MWS-1 1�UfVDERGROUND <br /> (-10.09) FUEL TANKS <br /> _ I <br /> OLANTER <br /> DRIVEWAY <br /> pRIVE%NAY <br /> TRANSFORMER � � looll <br /> \r0 <br /> 2o / FIGURE 2 <br /> j POTENTIOMETRIC GROUNDWATER <br /> ELEVATION CONTOUR MAP <br /> JULY 12, 1996 <br /> ! BP OIL SERVICE STATION NO. 11193 <br /> MW-6 3202 WEST HAMMER LANE <br /> (-10.29) <br /> STOCKTON, CALIFORNIA <br /> PROJECT NO. 10-136 <br /> h <br /> ALISTO ENGINEERING GROUP <br /> 0 <br /> WALNUT CREEK, CALIFORNIA „ <br /> 0 <br />