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<br />-- <br /> <br />H~droLogic Technolog~ Fax:303-688-8698 <br /> <br />Jun 18 '99 <br /> <br />7:21 <br /> <br />P.02 <br /> <br />WABASH RESERVOIR COMPLEX <br />RISK I RELIABILITY ASSESSMENT PROJECT <br /> <br />Prepared by the <br />Cherry Creek Valley Water & Sanitation District <br /> <br />with the <br />assistance or the <br />Office or Water Conservation <br />Colondo Water Conservation Board <br /> <br />June, 1999 <br /> <br />Background <br /> <br />The Cheny Creek Valley Water & Sanitation District has over the past six years pursued the <br />development of the Wabash Reservoir Complex. This project is a non-potable conjunctive use <br />water supply utilizing junior water rights on Cherry Creek to store seasonal peak flows derived <br />from urban runoff. Stored waters will be used a source of augmentation water to replace the <br />depletions caused to Cherry Creek by alluvial and Denver aquifer well depletions. Nontributary <br />groundwater from the Denver Basin aquifers will be utilized as supplemental source to meet <br />demands not met by the junior storage priority. <br /> <br />Water rights for the Wabash Complex were decreed to the District by the Division 1 Water <br />Court in Case Nos_ 94CW266 and 94CW267. The decreed storage capacity of the project is 419 <br />acre-feet. A total oftive storage vessels were originally plaMed for the project. Additional <br />investigations in the late 1990's indicated that the construction cost of Reservoir #5 is high due <br />to the use of that site for the disposal of concrete slab waste. One of the major findings of this <br />study is that storage capacities greater than 300 acre-feet do not significantly enhance the water <br />yield of the project and therefore may not be economically viable. <br /> <br />.1. <br />