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ARCO AM/PM <br /> SERVICE STATION <br /> i <br /> N <br /> PRIVATE ROAD # W <br /> z <br /> I <br /> 0 30 60 <br /> W <br /> } � SCALE IN FEET <br /> _ ;LEGE D <br /> MW-4 MW-3 F- GROUNDWATER MONITORING WELL <br /> (-1 1.19) W <br /> (-11 .16) GROUNDWATER ELEVATION IN <br /> 1 1.20. FEET ABOVE MEAN SEA LEVEL <br /> z <br /> F -15 i -1 1.20— GROUNDWATER ELEVATION <br /> 1 1,00' SERVICE CONTOUR IN FEET ABOVE <br /> STATION MEAN SEA LEVEL <br /> L J BUILDING DISLANSSR117 MW-7 (CONTOUR INTERVAL-0.20 FOOT) <br /> (-11 .83} CALCULATED GROUNDWATER <br /> UNDERGROUND O.DD3 GRADIENT DIRECTION AND <br /> USED OIL TANK a I �� MAGNITUDE IN FOOT PER FOOT <br /> w <br /> > 1 <br /> IM MW---5 0 �� <br /> I y( 1 .4 } <br /> MW,_1 UNDERGROUND \ I <br /> FUEL TANKS I <br /> pLo TER ' <br /> DRIVEWAY <br /> I <br /> Dft1V�AY , + <br /> TRANSFORMER <br /> FIGURE 2 <br /> POTENTIOMETRIC GROUNDWATER <br /> ELEVATION CONTOUR MAP <br /> APRIL 12, 1995 <br /> BP OIL SERVICE STATION NO. 11193 <br /> 3202 WEST HAMMER LANE <br /> MW-6 STOCKTON, CALIFORNIA <br /> (-11 .49) <br /> PROJECT NO. 10-136 <br /> ALISTO ENGINEERING GROUP <br /> WALNUT CREEK. CALIFORNIA <br />