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<br />32 <br /> <br />of land from irrigation. <br /> <br />This situation may be avoided by maklng a base allotment to all lands and <br /> <br />adding additional water as it becomes available. For an example of a limit of <br /> <br />2.50 acre-feet per year per acre on 600,000 acres, consider that, on the average, <br /> <br />the annual flow available for irrigation (total flow less 10 percent reserve <br /> <br />and 60,000 acre-feet domestic use) would be less than 350,000 acre-feet (456,000 <br /> <br />total river flow) only 1 year in 13, or 8 percent of the time (see figure 6). <br /> <br />Depending upon this amount of water for a minimum year would not be too great a <br /> <br />risk to assume, particularly as only once has the usable flow been as low as 340,000 <br /> <br />(1952) and the second lowest was 476,000 acre-feet (1953). <br /> <br />Table 21.- Water supply observing priorities and limited to 2.50 acre-feet On <br />550,000, 600,000 and 650,000 acres. <br /> <br /> Allocation, acre-feet per acre <br /> 550,000 acres 600,000 acres 650,000 acres <br />Year First Second Third First Second Third First Second Third <br /> priority priority priority priority priority priority priority priority priority <br /> 200,000 200,000 150,000 200,000 200,000 200,000 200,000 200,000 250,000 <br />1945 2.50 2.50 0.03 2.50 2.50 0.02 2.50 2.50 0.02 <br />46 2.50 2.50 1.64 2.50 2.50 1.23 2.50 2.50 .98 <br />47 2.50 2.32 0 2.50 2.32 0 2.50 2.32 0 <br />48 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.15 <br />49 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 <br />50 2.50 2.50 2.50 2.50 2.50 1.34 2.50 2.50 .64 <br />51 2.50 1.27 0 2.50 .97 0 2.50 .97 0 <br />52 1.70 0 0 1.70 0 0 1.70 0 0 <br />53 2.38 0 0 2.38 0 0 2.38 0 0 <br />54 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 <br />55 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 <br />56 2.50 1.28 0 2.50 .40 0 2.05 0 0 <br />57 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 <br />58 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 <br />59 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 <br />60 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 <br />61 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 1.71 <br />62 2.50 2.50 2.45 2.50 2.50 .06 2.50 1.56 0 <br />63 2.50 1.12 0 2.50 1.12 0 2.50 1.12 0 <br />64 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.50 2.06 <br />Ave. 2.45 2.05 1.5e 2.45 1.98 1.38 2.43 1.92 1.25 <br /> <br />r ,...... .""1 <br />\.;,' t,;. ~ . (,J <br />