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GROUND WATER IN THE CENTRAL VALLEY, ['.ALIFORNIA A19 <br /> 250 <br /> 2fao <br /> 150 <br /> 10N11 E-33A01 M <br /> Altitude, 120 feet 10N11E-28K01M <br /> 100 Altitude, log feet <br /> 50 <br /> W sea A 70NIIE-23002M <br /> tLd level Attitude,8T feet <br /> Q 50 <br /> W <br /> M <br /> 3 300 <br /> 0 <br /> W NOTE: Venica{scale is 2 times that of other hydrographs <br /> M 200 <br /> CIL 20SIIQE-09A01M <br /> 0 Altitude,224 feet <br /> 20SIlBE-36001M <br /> W 100 Altitude,260 feet r.. <br /> 00 Depth, 1,400 feet �r <br /> Sea <br /> 20s118E-11Q03M _ .r <br /> lit level Altitude,268 feet 1 <br /> 2 Perforations, 1,885 to 1.930 feet <br /> 100 20S118E-11 Q01 M �� ! 4 <br /> Q Attitude,268 feet <br /> Depth,710 feet .��ly•�y. 1 j l t <br /> ~ <br /> 2na B 20SI18E-06001M f l f <br /> it <br /> _j Altitude,317 feet f'�~ <br /> < Depth, 1,017 feet------, <br /> J <br /> 7 300 <br /> W <br /> -? 350 <br /> ti 31SI29E-29A 01 M <br /> F 3r5/29E68f❑1M��� Depth'S300leetfeet <br /> 3AI5tude 392fe t <br /> 300 Altitude,468 feet �� Perforations,170 to 270 feet <br /> 250 31SME-3001M Tyr 1 <br /> Altitude,413 feet <br /> Depth,800 feet <br /> 200 31S129E-12M01 M <br /> AlVtude,513 feet <br /> Perforations,380 to 982 feet �- <br /> 150 <br /> 100 C1 <br /> Q <br /> 50 <br /> 1925 30 35 40 45 50 55 631 65 70 75 1980 <br /> YEAR <br /> Fiuune 12.—Representative hydrographs showing long-term changes in ground-water levels in the Central Valley <br /> (modified from Williamson and others, 1989). See figure 5 for well-numbering system.A, Wells in Central <br /> Valley near Wcxxtland. B. Wells on west side of San Joaquin Valley north of Kett.leman City. C. Wells in <br /> southern San Joaquin Valley near Bakersfield. <br />