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Water Supply Reserve Account -Grant Application Form <br />Form Revised May 2007 <br />7. Please provide a brief narrative of any related or relevant previous studies. <br />"Feasibility Study, Controlled Outlet Structure, Lake San Cristobal, Hinsdale County, <br />Colorado", by URS Corporation, 2004. A copy of this report was previously provided to <br />CWCB. <br />-This study evaluated the concept of constructing a new permanent outlet control structure <br />on Lake San Cristobal. It proposed that a new structure would consist of a steel sheetpile <br />cutoff structure and buried concrete blocks that would allow safe passage of the 100-year <br />flood while maintaining the capability to store 1020 acre feet in priority. <br />Hinsdale County and the UGRWCD have previously received $35,000 of SB179 funds to <br />conduct a marketing and firm yield study for this project. The results of this study are <br />currently being drafted. Results indicate the firm yield ratio for the water supply is a very <br />favorable 1:1. The marketing study showed that all three applicants' customers would benefit <br />from having additional high-altitude augmentation water available. The need for this <br />augmentation water would become acute should USBR everterminate its Blue Mesa <br />augmentation water contracts. <br />10 <br />