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+AW-8 <br /> r� (18.72) LEGEND <br /> X -�- Ground water monitoring well <br /> f <br /> X Ground water elevation In feet <br /> Leprino Foods (18.95) above mean sea level <br /> N is <br /> 0 50 (NGVD-1929) <br /> ! i <br /> Ground water elevation contour <br /> Approximate state in feet line <br /> X <br /> !! General direction of ground water <br /> ?Q� gradient i ♦ <br /> Residential x <br /> AWAS ` AW-7 ` AW-6 NOTE: 1,Ground water gradient based upon <br /> (20.18) x—x — x�"x (19.63) x—x x- (18.95) ground water level measurements <br /> ` collected February 21, 1991 <br /> '$ 2.Contour interval-1.0 toot <br /> S.Average gradient magnitude-0.009 <br /> fooVfoot <br /> EAST GRANTLINE ROAD <br /> Former 1 <br /> aboveground <br /> ` diesel storage <br /> tanks <br /> r=--- - <br /> - --C. <br /> AWS f +I(19,90) <br /> ... x <br /> Doane � � ` +� ,1 �, x � <br /> Products <br /> Gonpany ' W' GROUND WATER <br /> ELEVATION CONTOUR <br /> x MAP <br /> Source:Mobil Oil Corporation,City of I'- - ___ ___, I r F `��� Former Mobil Oil Bulk Plant <br /> x I ormer ? <br /> Tracy,and Leprino Foods I I 7 <br /> M � Limit of soil building <br /> .� x 500 East Graant ine Road <br /> ALTON GEOSCIENCE excavation AW-2 I Tracy, California <br /> Pleasanton,California AW-4 �� (21.58) FIGURE 3 <br /> 30-013610 <br />