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June 30, 2008 <br />• Late summer and fall flow augmentation sources to enhance flows in the 15 -mile <br />reach for the period July 15 through October 31, when flows in the 15 -mile reach are <br />most impacted by existing diversions. Program flows are considered to be in addition <br />to the natural flows in the river with respect to the Shoshone water rights, and <br />consequently enhance the natural condition in that section of the river. Supplies are <br />made available through: <br />i. Wolford Mountain Reservoir <br />a. 6000 AF fish pool <br />b. 5412.5 AF temporary pool (for 10 years beginning in 2000) <br />ii. Green Mountain Reservoir Supplies that are "Surplus" to the HUP supplies <br />a. This amount varies depending on flow conditions (can summarize from <br />annual HUP reports) <br />iii. Williams Fork Reservoir <br />a. 5412.5 AF temporary pool (for 10 years beginning in 2000) <br />• Spring Peak Enhancement — to provide additional water up to approximately 20,000 <br />AF /year for spring peak flow enhancement (10 day period) without impairing project <br />yield or causing projects sponsors to incur significant costs. This occurs in all but <br />extremely dry or wet years or generally when peak flows are between 12,900 cfs and <br />26,600 cfs in the 15 -mile reach. <br />i. Coordinated Reservoir Operations <br />a. Operated in 1997 ( +2000 cfs), 1998 (2400 cfs), 1999 ( +2500 cfs) and <br />in 2006. Coordinated Reservoir Operations have been impacted by <br />drought conditions since 2000. <br />ii. Coordinated Facilities Water Availability Study <br />a. Feasibility investigation to examine additional alternatives to supply <br />the 20,000 AF /year to enhance spring peak flows. <br />II. Benefit to Stream Segments <br />The operations associated with the Upper Colorado River Endangered Fish Recovery <br />Program have produced positive benefits to the stream segments each year. Those <br />benefits vary according to flow conditions in the basin, but historic contributions can be <br />summarized in the hydrographs for the Colorado River at Dotsero and the Colorado River <br />at Kremmling. <br />III. Permanent Flow Protection <br />The permanency of protection provided by the Program is linked to the continued <br />operation of the Program and use of flow enhancement sources upstream of the reaches to <br />be protected. <br />., <br />