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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 />3. Construct recharge ponds filled using recharge wells: <br /> <br />This alternative would consist of drilling two wells used to <br />pump water into two recharge ponds. This system, as used on <br />the Tamarack Ranch, pumps water during the winter months <br />when there is generally not a call on the river and places <br />water in ponds for re-timing to the river. The water from <br />the pond is returned to the river by underground percolation <br />which due to a time delayed effect causes the majority of <br />this water to show up in the river during the summer time. <br />This is the time when Stieb Brothers have depletions that <br />need to be offset with augmentation water. The water <br />returned to the river during the winter also has potential <br />value for endangered species issues facing the State of <br />Colorado. The development of recharge ponds also provides <br />habitat for migratory waterfowl. Stieb Brothers would also <br />convert an existing irrigation well into a well used for <br />supplying augmentation water directly to the river. This is <br />a drought management tool currently being used by GASP with <br />approval from the State Engineer to help provide <br />augmentation water during the most severe drought <br />situations. The cost of this alternative is $202,000. <br /> <br />The Selected Project <br /> <br />Stieb Brothers plans to construct alternative #3. Features of <br />this alternative are as follows: <br /> <br />Drill two wells for pumping water into recharge ponds. The <br />wells would pump up to a combined maximum rate of 13.4 cfs. <br />This would produce up to 6000 acre feet annually from the 2 <br />wells. The wells would be drilled within 100 feet of the <br />South Platte River. <br /> <br />The two recharge ponds will be placed on locations of the <br />Stieb Brothers farm currently not used for anything. Natural <br />topography will be used to minimize any dirt work needed for <br />containment. <br /> <br />Piping will be used to convey water from the wells to the <br />recharge pond. Piping will be 18 inches in diameter. The <br />piping will be buried. <br /> <br />Feasibility Study <br />Stieb Brothers Inc. <br />Recharge Project <br />February 2003 <br /> <br />7 <br />