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Last modified
1/26/2010 3:12:49 PM
Creation date
10/12/2006 4:18:56 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8282.600.40
Description
Colorado River Annual Operations Reports
Basin
Colorado Mainstem
Date
1/1/1999
Author
USDOI/BOR
Title
Colorado River Reservoir Operation Status Reports Part 1
Water Supply Pro - Doc Type
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<br />,. <br /> <br />years, there have only been three months where inflow into Flaming Gorge has been below <br />average. <br /> <br />On January 7, the National Weather Service issued an inflow forecast for Flaming Gorge <br />Reservoir for the April through July runoff period. This forecast is calling for 1.08 million <br />acre-feet of unregulated inflow into Flaming Gorge during the April through July time period. <br />This is 90 percent of average. It is still very early in the water year, however, and it is quite likely <br />that hydrologic conditions will change as we move through the winter and spring time periods. <br /> <br />Snowpack in the Upper Green River basin is currently 83 percent of average. <br /> <br />Open forum discussions on Raming Gorge operations have been taking place at meetings of the <br />"Raming Gorge Working Group". The next Working Group meeting is scheduled for January <br />19, 1999 at II am in Heber, ur. For more information on the Working Group, contact Ed <br />Vidmar at 801-379-1000. <br /> <br />ASPINALL - December unregulated inflow into Blue Mesa was 23,000 acre-feet or 89 percent <br />of average. Precipitation in the Gunnison River basin was only 40 percent of average for <br />December. The basin snowpack is averaging about 87 percent of normal. The inflow rate into <br />Blue Mesa Reservoir is about 400 cfs and reservoir releases are averaging about 700 cfs. Blue <br />Mesa's current elevation is 7488.95 feet that corresponds to a storage content of 573,000 acre- <br />feet. <br /> <br />Releases from Crystal Dam are currently 800 cfs. Because of the persistent dry weather pattern <br />that has developed over the west, and the lower than normal runoff forecast for the Gunnison <br />Basin, releases from Crystal will probably be scaled back to 700 cfs in the coming days. <br />Modification to these operations will be implemented and conditions warrant. <br /> <br />The next meeting of the "Aspinall Unit Working Group" is scheduled for January 21, 1999, in <br />Montrose, Colorado. At this meeting, review of last summer and fall operations, and plans for <br />the winter and spring [999 operations will be discussed. These meetings are open forum . <br />discussions on the Aspinall Unit operations with many interested groups participating. Anyone <br />needing further information about these meetings should contact Ed Warner in the Grand <br />Junction Area Office at (970) 248-0654. <br /> <br />NA VA10 - December unregulated inflow into Navajo Reservoir was about 32,000 acre-feet or <br />approximately 127 percent of average. The current reservoir inflow is about 200 cfs and the <br />reservoir water surface elevation is at 6064.52 feet which corresponds to a reservoir content of <br />about 1,406,000 acre-feet. Releases from the dam are currently set at 500 cfs and will be <br />increased to 600 cfs starting January IS, 1999. This lower flow release is needed by the West <br />Hammond Water User Association for maintenance work on their pipeline. <br /> <br />December's precipitation for the San Juan River Basin was only 35 percent of normal. The <br />current snowpack is 72 percent of normal for the Animas River Basin and 76 percent of nonnal <br />for the upper San Juan River Basin. <br />
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