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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 />IV-9 <br /> <br />to average about 500 acre feet per year, <br />The storage right for Brush Hollow Reservoir has a very <br />junior priority of 1907 with regard to the Arkansas River, <br />Because of this junior priority, excess water above the irri- <br />gation requirement can not be legally stored in the summer <br />period, except on rare occasions, The only time storage can <br />be made is when the Arkansas River water rights are partici- <br />pating in a winter storage program in Pueblo Reservoir or <br />when the flow at the diversion point on Beaver Creek is less <br />than 8 cfs. Flows of less than 8 cfs were determined to be <br />a futile call by the Division Engineer in 196J, <br />The quality of the water is generally considered as <br />excellent. The drainage area of Beaver Creek is located in <br />predominantly granitic rocks south of Pikes Peak. The seventy <br />years of irrigation of fruit crops are indicative of the suit- <br />ability of the water quality, Beaver Creek has a steep <br />gradient and does carry a large bed-load of sand and gravel, <br />The diversion dam had. a maximum capacity of about JO acre <br />feet and must be flushed everyone or two years to pass the <br />accumulated sediment load and to prevent excessive amounts of <br />sand being carried into the irrigation system, There is some <br />need for periodic cleaning of the upper canal to remove sedi- <br />ment deposits in the ditch, <br />