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5.3 Ground Water Pumping Estimates <br />When pumping data is not provided in the historic pumping file (Section 4.7), StateCU <br />estimates ground water pumping (diversion) required to satisfy crop consumptive <br />demands not met by surface water. These pumping estimates include water pumped to <br />offset the inefficiencies associated with ground water application (flood or sprinkler). <br />Also, the amount of ground water pumped is limited by the acres served by wells and the <br />permitted or decreed capacity for each month. As shown in Table 19, the average <br />estimated ground water pumping from 1950 through 2002 is 542,947 acre-feet per year. <br />Table 19 <br />Estimated Ground Water Diversion - 1950 through 2002 <br />Water <br />District Estimated Ground <br />Water Diversion <br />20 335,293 <br />21 28,678 <br />22 44,281 <br />24 15,585 <br />25 29,034 <br />26 35,464 <br />27 33,796 <br />35 20,816 <br />Total 542,947 <br />cureport_6-2004.doc 42 of 48 June, 2004 <br />