Laserfiche WebLink
<br />by the 1992 Flaming Gorge Biological Opinion (FGBO) which states that flows on the Green River <br />at Jensen. Utah shall change by no more than plus or minus 12.5 percent of the daily average flow. <br />The range of tluctuation (high to low) from Flaming Gorge Dam will generally be on the order of <br />about 600 cfs on any given day. <br /> <br />Open forum discussions on Flaming Gorge operations have been taking place at meetings of the <br />"Flaming Gorge Working Group". The next Working Group meeting is scheduled for September 12 <br />at II :00 a.m. in Heber City, Ul. For more infonnation on the Working Group. contact <br />Ed Vidmar at 801-379-1000 or access the working group website at <br />hltp:l/www.pro.uc.usbr.gov/fgwg. <br /> <br />ASPINALL - July unregulated inflow into Blue Mesa was 52,000 acre-feet or 40 percent of average. <br />Precipitation in the Gunnison basin was 85 percent of average for July. The actual spring runoff for <br />April though July period was 505,000 acre-feet or about 72 percent of average. Currently the inflow <br />rate into Blue Mesa Reservoir is averaging about 600 cfs and reservoir releases are averaging about <br />2.000 cfs. Blue Mesa's current elevation is 7500.51 feet which corresponds to a storage content of <br />about 666,000 acre-feet. <br /> <br />Releases from Crystal Dam are currently at maximum powerplant capacity of about 2,100 cfs. The <br />Gunnison Diversion Tunnel has been diverting 1,000 cfs over the last few days. The Gunnison River <br />below the tunnel remains is averaging about I, 100 cfs. These releases should remain at this level for <br />the remainder of this month and into September. Fall releases will be reduced to coincide with <br />reductions in diversions from the Gunnison Diversion Tunnel. Canyon tlows are projected to be <br />gradually reduced from 1,100 cfs to 800 cfs sometime before the fall brown trout spawn or about mid <br />October. <br /> <br />The next meeting of the "Aspinall Unit Working Group" will be held August 17,2000 at 12:30 pm at <br />Blue Mesa Reservoir's Elk Creek Visitor Center. At this meeting, review of last spring and summer <br />operations, and plans for this fall 2000 operations will be discussed. These meetings are open forum <br />discussions on the Aspinall Unit reservoir operations with many interested groups participating. <br />Anyone needing further infonnation about these meetings should contact Ed Warner in the Grand <br />Junction Area Office at (970) 248-0654. <br /> <br />NA V A.lO - Releases from Navajo Reservoir are currently 900 cfs. This is a 300 cfs increase from <br />last month. This increase is in response to river flows falling below the 500 cfs minimum tlow at <br />Bluff. Utah as set by the Flow Recommendations for endangered fish. This 900 cfs release rate will <br />remain in affect unlil the river flows al Bluff increase past the 500 cfs rate. Then the reservoir <br />releases will revert back to the 500 cfs minimum flow releases. If the river tlow continues to drop, <br />then Navajo Reservoir releases will be increased to preserve the minimum flow of 500 cfs at the <br />. Bluff gage. <br /> <br />Precipitation for the month was near 60 percent of nonnal. The actual April through July runoff was <br />measured at 337.000 acre-feet. or about 43 percent of average for seasonal runoff. The current <br />reservoir inflow is about 350 cfs and the water surface elevation is 6066.06 feet which corresponds <br />to a reservoir content of about 1.427,000 acre-feel. All reservoir releases are being made through the <br />