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GROUND WATER IN THE CENTRAL VALLEY, CALIFORNIA All <br /> 123' 122° 121' 120` 119`' lie` <br /> Fed Blui`I <br /> • <br /> 40' <br /> 2,oan EXPLANATIO <br /> c —2,000— LINE OF EQUAL'PI-IICKNESS OF CONTINENTAL DEPOSITS- <br /> o Interval 1,000 feet <br /> Sr�irer <br /> 39° <br /> a <br /> 0 <br /> aCr enta <br /> 3.000 <br /> N <br /> d <br /> so <br /> 38` <br /> 4 <br /> 0 <br /> c?� <br /> Alluvzl i <br /> boundary <br /> .p <br /> 37 <br /> 'o <br /> 0 <br /> 0 <br /> SGO <br /> O <br /> roG V 5.000 �a <br /> o <br /> 36` <br /> �a o <br /> cr <br /> 5 � o <br /> 3. ❑p <br /> 0 54 100 MILES <br /> ❑, 6 <br /> 0 50 100 KILOMETERS � <br /> ea r field <br /> - 3 DDD <br /> jDDD <br /> 35° q9t �y DQO <br /> 1. <br /> FIGURE 8.—Thickness of Central Valley aquifer system(largely post-Eocene continental deposits). From Page[1974]and R.W.Page(U.S. <br /> Geological Survey,written commun., 1981). <br />