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BOARD01355
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Last modified
8/16/2009 3:00:53 PM
Creation date
10/4/2006 6:53:56 AM
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Board Meetings
Board Meeting Date
5/19/2003
Description
WSP Section - Colorado River Basin Issues - Coordinated Facilities Operations Study
Board Meetings - Doc Type
Memo
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<br /> <br />Agenda Item 27 - Coordinated Facilities <br />May 19-20, 2003 Board Meeting <br />Page 10 ofl2 <br /> <br />making both the CROP'S bypass and the 20,000 acre-feet release in six of the eight years of the <br />study period in which the 20,000 acre-feet release would be required, <br /> <br />. Removing the Shoshone priority call in those years in which the 20,000 acre-feet would be <br />supplied to the IS-Mile Reach, thereby providing replacement water to storage in those <br />facilities supplying the 20,000 acre-feet release. <br /> <br />Either of these possibilities, or a combination of the two, might provide the basis for an effective insurance <br />pool. <br /> <br />A third, and perhaps the most promising insurance pool concept, was identified late in the comment process <br />for the study. The insurance pool could be provided by the USFWS's Environmental Pools, first from Ruedi <br />Reservoir and second from Wolford Mountain Reservoir. Eachyear, the USFWS would determine whether <br />peak flow augmentation in the spring or low flow augmentation in the fall were the best use of water from the <br />Environmental pools. If the USFWS decided in Mareh on April 1st of the year that peak flow augmentation <br />was the best use of a portion or all of water from the Environmental pools, the USFWS would designate up to <br />20,000 acre-feet of the water as the insurance pool for preemptive releases from existing reservoirs to <br />augment peak flows in the spring. That way, operators of existing reservoirs would have virtually no risk to <br />yield from their reservoirs if they preemptively released water from that reservoir. By way of example, if <br />Denver Waterreleased 10,000 acre-feet from Williams Fork Reservoir for peak flow augmentation and the <br />runoff was not sufficient to refill Williams Fork Reservoir, a 10,000 acre-foot exchange or substitution would <br />occur from Ruedi or Wolford Mountain reservoirs to make up for the lost water to Williams Fork Reservoir. <br />However, if Williams Fork Reservoir did fill after a preemptive release, the USFWS could use that 10,000 <br />acre-foot insurance pool for low flow augmentation later in the fall. <br /> <br />Flood Protection' Water Project Planning and Flnance . Stream and Lake Protection <br />Water Supply Protection' C01l8ervation Planning <br /> <br />, <br /> <br /> <br />, <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br />
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