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Old 06-18-2015   #1
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Flagstaff, Arizona
Paddling Since: 1869
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Grand Canyon Colorado River Flows - June, July, August

In June, the release volume will be approximately 800 kaf, with fluctuations anticipated between about 10,000 cfs in the nighttime to about 18,000 cfs in the daytime and consistent with the Glen Canyon Operating Criteria (Federal Register, Volume 62, No. 41, March 3, 1997).

The anticipated release volume for July is 1,050 kaf with daily fluctuations between approximately 12,000 cfs and 20,000 cfs during the first part of the month and 14,000 cfs and 22,000 cfs during the latter part of the month.

The expected release for August is 800 kaf with daily fluctuations between approximately 9,000 cfs and 17,000 cfs.

Updated June 15, 2015
Katrina Grantz
Hydraulic Engineer, Glen Canyon Dam
Bureau of Reclamation
125 S. State St.
Salt Lake City, UT 84138

Ph: 801-524-3635
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