GCPBA RiverNews (6/26/2012) – July Flows 10,000 to 18,000 CFS

The purpose of this notification is to confirm that the release volume from Glen Canyon Dam for July 2012 will be 889,000 acre-feet. Hourly and daily average releases from Glen Canyon Dam for July 2012 will be scheduled through Western Area Power Administration to be consistent with the Glen Canyon Dam Operating Criteria (Federal Register, Volume 62, No. 41, March 3, 1997) and to also achieve, as nearly as is practicable, this monthly volume.

Hourly releases during July 2012 are anticipated to peak in the afternoon to approximately 18,000 cfs with early morning hourly low releases of approximately 10,000 cfs.

We anticipate the release volume for August 2012 will be 800,000 acre-feet.  This will be confirmed in a subsequent notification toward the end of July.

This notification supersedes all previously issued notifications and is current until a new notification is issued. All times identified in this notification are local time (Mountain Standard Time) and not hour ending.

If there are any concerns or questions regarding these operations, I can be reached at 801-524-3710.

Rick Clayton
Hydraulic Engineer/Glen Canyon Dam
Upper Colorado Region
Bureau of Reclamation

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