River Flow Advisory Bureau . of Reclamation Upper Colorado Region Salt Lake City, Utah Vol. 15, No. 1 September 1984 River flows in the Upper Colorado River drainage, still high for this time of year, are not expected to decrease much for several weeks: While the daily update of operations and releases has been discontinued, the toll-free numbers now provide updates on Bureau of Reclamation activities and projects. Utah residents may call 1-800-624-1094 and out-of-Utah residents may call 1-800-624-5099. Colorado River at Westwater Canyon The flow of the Colorado River on September 10 was 7, 000 cfs, and is expected to decrease slightly over the next few weeks. Cataract Canyon Includin2 the Green- River The flow was 11,500 cfs on September 10 and will continue to decrease slightly. Lake Powell Lake Powell's elevation on September 10 was 3,699. Assuming normal inflow for this time of year, the lake should continue to go down slowly to elevation 3,682 by next spring. Colorado River through Grand Canyon . Releases through Glen Canyon Dam remain at 25,000 cfs. These releases are expected to be maintained with no daily fluctuations in river flows. Upper Green River - Fontenelle Reservoir Fontenelle Reservoir is now at elevation 6,482 feet. Releases through the dam will be reduced to about 600 cfs starting on September 17 for about 2 weeks during powerplant maintenance. Green River Flows Below Flaming Gorge Dam On September 10 Flaming Gorge Reservoir was at elevation 6,039.9 feet. Releases from the dam are expected to average 2, 500 cfs in September and October with usual daily fluctuations. The reservoir will be drawn down to elevation 6,023 by next spring a3suming normal inflow. Page 2 Green River at Green River, Utah The Green River flow on September 10 was 4,300 cfs and will continue to decrease slightly. San Juan River Basin The flow of the San Juan River at Bluff, 1, 300 cfs on September 10, will be maintained by releases from Navajo Dam. San Juan River - Navajo Reservoir Navajo Reservoir, now at elevation 6 ,082 feet, has 1. 6 million acre-feet of storage, and is at 97 percent of capacity. It is expected to be drawn down to elevation 6, 062 feet by next spring. Releases from Navajo Dam have been increased from 800 cfs to 1,100 cfs. Gunnison River - Blue Mesa Reservoir Blue Mesa Reservoir is at elevation 7 ,517 feet, only 2 feet short of full, and will be drawn down slowly to about elevation 7,473 by next spring. Dolores River - McPhee Reservoir McPhee Reservoir has stored as much water as was planned for this year. The release has been reduced to 70 cfs. Those seeking specific daily flow of the Dolores River or reservoir information on McPhee Reservoir are asked to call the Durango office of the Bureau of Land Management, (303) 247-4082, or the Salt Lake City office of Bureau of Reclamation, (801) 524-5574. For current information on river flows: Call the National Weather Servi ce River Forecast Center, Salt Lake City - Telephone number (801) 524-5130. For further information on reservoirs and releases: Call the Upper Colorado Regional Office of the Bureau of Reclamation, Salt Lake City - Telephone numbers (801) 524-5573 or 524-5571. .