Aspinall Unit operations update: 700 cfs in the Black Canyon

crystaldamspill052009.jpg

Even with the recent increase in releases from the Aspinall Unit, the forecast for flows on the lower Gunnison River continues to decline. Without additional water, flows at the Whitewater gage are again expected to approach the 900 cfs baseflow target by this weekend.

In order to meet the environmental commitments set forth in the Aspinall ROD, releases from Crystal Dam shall be increased again, starting at 8:00 am on Wednesday, June 26, by 100 cfs (from 1,600 cfs to 1,700 cfs). This will increase flows in the Gunnison River through the Black Canyon to around 700 cfs. At this level, flows in the canyon will be above the Black Canyon Water Right peak flow target of 685 cfs. Flows through the canyon are expected to remain at this level for the foreseeable future.

More Aspinall Unit coverage here.

Leave a Reply