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<br />13 <br /> <br /> <br />OQ,2~ <br /> <br />The Kansas ditch requirements were estimated at an averaGe of <br /> <br />119,000 acre-feet. The average annual surplus State line flow <br /> <br />amounted to 123;000 acre-feet for the same period. Water for <br /> <br />increased use in Kansas would be obtained from those flows at <br /> <br />the State line which are surplus to the requirements of water <br /> <br />users in Kansas above Garden City. These surplus flows consist <br /> <br />principally of winter irrigation returns and summer flood flows <br /> <br />originating either below or spilling from John Martin Reservoir. <br /> <br />A reservoir of large capacity located near the Colorado-Kansas <br /> <br />State line would be required to completely control all the <br /> <br />surplus flood flows, because of their magnitude and erratic <br /> <br />occurrence. Historic flows during the years 1921, 1923, 1924 <br />and 1942 are indicative of this condition. However, periods of <br /> <br />high flows could be utilized to replenish the depleted conserva- <br /> <br />tion storage of any reservoir. <br /> <br />In order to analyze the probable limits of beneficial <br /> <br />diversion from direct flows, the daily discharges of the Arkansas <br /> <br />River at Holly, Colorado, and Coolidge, Kansas, were studied. All <br /> <br />mean daily flows in excess of 3500 c.f.s. were considered to be <br /> <br />too high to be of beneficial use directly from the river. The <br /> <br />figure of 3500 c.f.s. was selected after determining the percent <br /> <br />of time that flows below Syracuse, Kansas were between 3,000 and <br />4,000 c.f.s. Y <br /> <br />!/ Found in "Kansas Streamflow Characteristics Part 1, Flow <br />Duration, Technical Report No.1", published by the Kansas Water <br />Resources Board, June 1959. <br />