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4 <br /> R <br /> f <br /> AW-8 <br /> C ' <br /> 79a <br /> S <br /> 19� <br /> % N , <br /> 7976 0 20 <br /> 11000 ®Be <br /> SCALE RI FEET <br /> 20,E <br /> LEGEND: <br /> 20.25 <br /> r MONITOR WELL " <br /> (4.40) �� (19.87} AV,.7 (922} <br /> 20.5o AW-5 ® SOIL BORING <br /> -- '— FENCE <br /> RAILROAD TRACKS <br /> o.7 <br /> EAST G N INE ROA Q RAILROAD CROSSING <br /> a <br /> g 1 }; <br /> kw GROUND WATER ELEVATION IN <br /> (20.17) <br /> FEET ABOVE MEAN SEA LEVEL <br /> GROUNDWATER ELEVATION <br /> —22.00— CONTOUR LINE <br /> -21.00 AW-3 .� - GENERAL DIRECTION OF <br /> ® <br /> (21.04) AW- NOM'(20,17) GROUND WATER FLOW <br /> B-5 � <br /> 1.DATA BASED ON GROUND WATER <br /> 21.25 <br /> LEVEL MEASUREMENTS COLLECTED <br /> ON MAY 7,1991. <br /> I ® 2.CONTOUR INTERVAL-0.25 FOOT, <br /> 21.50 9.8 3,GRADIENT�0.014 FOOT PER FOOT <br /> GROUND WATER <br /> NORTH>=AST. FIGURE POTENTIOME 'RIC SURFACE <br /> MAP <br /> 4 <br /> 21.75 <br /> FARMER MOBIL OIL BULK PLANT <br /> 500 EAST GRANTLINE ROAD <br /> TRACY,CALIFORNIA <br /> 22! } ALTON GEOSCIENCE <br /> K 1.74 IWO ourfwri Ave.. Sta.940 <br /> ip Ahl a <br /> AW-2E <br /> CA 94520 <br /> 24 PROJECT NO. 3G•0136-01 r <br /> li <br />