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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />A similar efficiency estimate of 70 percent was used for the Keesee Ditch <br />in the 1968 report entitled "Water Legislation Investigations for the Arkansas <br />River Basin in Colorado" (W. W. Wheeler & Associates and Woodward-Clyde & <br />Associates, 1968). Comparable irrigation delivery efficiencies for much longer <br />ditch systems along the Arkansas River include a 65 percent efficiency for the <br />Las Animas Consolidated Canal (W.W. Wheeler and Associates, 1982) which is <br />up to 15 miles in length, and an average efficiency during the growing season <br />of 64 percent for the Colorado Canal (W.W. Wheeler and Associates, 1985) which <br />is more than 40 miles in length. <br /> <br />The delivery efficiency for the Keesee Ditch was used to determine the <br />maximum supply of water available for use by crops and soil moisture storage. <br />The actual amount of water used was a function of the irrigation requirements <br />and soil moisture conditions and was determined as part of the water budget <br />analysis. <br /> <br />-12- <br />