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Last modified
1/26/2010 2:21:15 PM
Creation date
10/12/2006 1:25:50 AM
Metadata
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Template:
Water Supply Protection
File Number
8282.600.40
Description
Colorado River Annual Operating Reports
Basin
Colorado Mainstem
Date
6/1/2001
Author
USDOI/BOR
Title
Colorado River Reservoir Operation Status Reports Part 2
Water Supply Pro - Doc Type
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<br />/" <br /> <br />Glen Canyon Dam - A total of 800,000 acre-feet will be released from Glen Canyon Dam in <br />July which is an average of 13,000 cfs, The following load following pattern can be expected for <br />the remainder of July, On Mondays through Saturdays, daily fluctuations due to load-following <br />will vary between a low of about 9,200 cfs (during late evening and early morning off-peak <br />hours) to a high of about 17,200 cfs (during afternoon and early evening on-peak hours). On <br />Sundays, releases will be constant throughout the day at about 8,800 cfs, <br /> <br />Releases in August will be slightly higher than July with the likely volume to be released being <br />815,000 acre-feet. The load following pattern in August will be similar to that of July, <br /> <br />The July fmal inflow forecast, issued by the National Weather Service on July 5, 2001, is <br />forecasting April through July unregulated inflow to Lake Powell to be only 4,3 million acre-feet, <br />or 56 percent of average, In water year 2000, unregulated inflow was only 4.35 million acre-feet <br />almost exactly what is being forecasted for this year, <br /> <br />Unregulated inflow to Lake Powell in May, 2001 was 1.873 million acre-feet or 84 percent of <br />average, However, this year's wann dry spring resulted in an early melt. Unregulated inflow in <br />June, 2001 was only 1.359 million acre-feet or 46 percent of average. Observed inflow to Lake <br />Powell reached a peak value of 36,600 cfs on May 23, 2001. Typically, inflow to Lake Powell <br />peaks in early June, As of July 5, 200 1 inflow is 9,000 cfs, <br /> <br />The current elevation of Lake Powell is 3,672.7 feet (27.3 feet from full pool), Current storage is <br />20,2 million acre-feet (83 percent of capacity), Lake Powell reached a seasonal peak elevation of <br />3,673,0 feet on July 1, 2001. The elevation of the reservoir will likely be decreasing from now <br />until April, 2002, <br />
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