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SAN J OAQ U I N <br /> HOUSING AUTHORITY <br /> • • <br /> x x x x x x x x x x � X <br /> GROUNDWATER ELEVATIONS ( 5/ 29 /97 ) X <br /> \ \ X I <br /> WELL PVC DEPTH TO GROUNDWATER MW - 2 (49. 67) X <br /> ELEVATION GROUNDWATER ELEVATION X <br /> Gr dwoter Flow Direction LIJ <br /> Gradient <br /> MW - 1 67 . 72 18 . 05 49 . 67 40�� <br /> MW - 2 66 . 98 17 . 31 49 . 67 LiJ <br /> MW - 3 67 . 18 17 . 55 49 . 63 (49. 7) <br /> (49. 63) M W - 3 I <br /> � x x <br /> x - 0 <br /> X X J <br /> I m <br /> \ \ <br /> Approximate extent of petroleum — hydrocarbon Q <br /> Q <br /> X impacted soils . <br /> T x x x x x x � I <br /> ® X z <br /> ti X � <br /> X X XX X - X X � k X - X X X X XJ <br /> OOP <br /> EXPLANATION <br /> * MW - 1 GROUNDWATER MONITORING WELL <br /> ( 49 . 67 ) GROUNDWATER ELEVATION ( FT/ MSL ) <br /> 4. 9 , 67 GROUNDWATER CONTOUR ( FT - MSL ) <br /> CHEVRON PIPE LINE COMPANY FIGURE NO . <br /> n E m c o n 0 60 120 OLD VALLEY LINE , MILE POST 215 <br /> 7E: TRACY , CALIFORNIA 3 <br /> SCALE IN FEET PROJECT NO . <br /> GROUNDWATER CONTOUR MAP 2560 - 203 . 002 <br />