From email from Reclamation (Erik Knight):
Releases from the Aspinall Unit will be decreased from 1250 cfs to 1050 cfs on Monday, October 3rd. Releases are being decreased due to the heavy rainfall that occurred over the weekend which has reduced demand at the Gunnison Tunnel.
Flows in the lower Gunnison River are currently above the baseflow target of 790 cfs. River flows are expected to remain 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 790 cfs for October.
Currently, Gunnison Tunnel diversions are 950 cfs and flows in the Gunnison River through the Black Canyon are around 350 cfs. After this release change Gunnison Tunnel diversions will be around 750 cfs and flows in the Gunnison River through the Black Canyon will still be near 350 cfs. Current flow information is obtained from provisional data that may undergo revision subsequent to review.