Aspinall Unit operations update: Releases from Crystal Dam to decrease today

Aspinall Unit
Aspinall Unit

From email from Reclamation (Erik Knight):

Releases from Crystal Dam will be decreased from 800 cfs to 600 cfs on Thursday, February 5th at 9:00 AM. This release decrease is in response to the declining runoff forecast for Blue Mesa Reservoir. The current forecast for April-July unregulated inflow to Blue Mesa Reservoir is 620,000 acre-feet which is 92% of average.

Flows in the lower Gunnison River are currently above the baseflow target of 1050 cfs. River flows are expected to stay above the baseflow target for the foreseeable future.

Pursuant to the Aspinall Unit Operations Record of Decision (ROD), the baseflow target in the lower Gunnison River, as measured at the Whitewater gage, is 1050 cfs for February.

Currently, diversions into the Gunnison Tunnel are zero and flows in the Gunnison River through the Black Canyon are around 850 cfs. After this release change Gunnison Tunnel diversions will still be zero and flows in the Gunnison River through the Black Canyon should be around 650 cfs. Current flow information is obtained from provisional data that may undergo revision subsequent to review.

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