Aspinall Unit Reservoirs –September unregulated inflow into Blue Mesa Reservoir was 57,000 acre-feet or 150 percent of average. Precipitation during September was observed to be about 195 percent of average, a welcome relief. The current inflow rate into Blue Mesa Reservoir is about 850 cfs and reservoir releases are averaging about 800 cfs. Blue Mesa's present elevation is 7456.46 feet, which corresponds to a storage content of about 350,000 acre-feet. The unregulated reservoir inflow into Blue Mesa Reservoir during water year 2013 was 561,000 acre-feet, or about 59 percent of average.Releases from Crystal have recently been reduced from 1,000 down to 900 cfs as a result of higher flows at the Whitewater gage allowing for additional water conservation in the Aspinall reservoirs. The diversion tunnel is diverting approximately 600 cfs. Flows in the Gunnison River below the tunnel are about 300 cfs which is the set minimum flow for the canyon. This minimum flow of 300 cfs will most likely continue through the fall and early winter months in order to conserver reservoir storage.
The last meeting of the "Aspinall Unit Working Group" was held on Thursday, September 5, 2013 at the Elk Creek Visitors Center at Blue Mesa Reservoir. At this meeting, review of this spring’s reservoir operations, and plans for this summer and fall operations were discussed. These meetings are open forum discussions on the Aspinall Unit reservoir operations with many interested groups participating. Anyone needing further information about these meetings should contact Dan Crabtree in the Grand Junction Area Office at (970) 248-0652.
To view minutes from the last Aspinall meeting, click on: Meeting Notes.
Updated October 22, 2013
Email comments/inquires to: ResourceMgr@usbr.gov