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WSP08644
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Last modified
1/26/2010 2:49:04 PM
Creation date
10/12/2006 3:08:39 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8282.600.10
Description
Colorado River Annual Operating Reports
Basin
Colorado Mainstem
Date
1/1/1980
Author
USDOI/BOR
Title
Operation of the Colorado River Basin 1980 Projected Operations 1981
Water Supply Pro - Doc Type
Publication
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<br /> <br />LaKe Powelllilled to elevalion 3,700 feet <br />on June 22, 1980, terminating the "Filling <br />Criteria", <br /> <br />On September 30,1980, the actual eleva- <br />tion of Lake Mead was 1,204,92 feet <br />(23,637,000 acre-feel), Actual releases at <br />Hoover Dam for water year 1980 totaled <br />9,958,000 acre-feet. This figure includes <br />6,899,000 acre-feel for minimum down- <br />stream consumptive use, and 3.059,000 <br />acre-feet scheduled to create atioit\ona\ <br />flood control space in the reservoir. <br /> <br />It none of this additional water had been <br />released from Lake Mead during water <br />year 1980, the reservoir's flood control <br />regulations would have forced mandatory <br />release levels beginning in April 1980, <br /> <br />6 <br /> <br />During the months of April. May, and <br />June 1980, studies indicate that total <br />releases of 5.471.000 acre-feet would have <br />been required consistent with flood con- <br />trol regulations. This would have been an <br />excess of 3.105,000 acre-feet above con- <br />sumptive use requirements for those <br />three months. Releases for the entire <br />water year 1980 would have totaled <br />10,004,000 acre-teet, an excess of 46,000 <br />above what was actually released during <br />water year 1980, <br /> <br />Anticipatory release of water from Lake <br />Mead was initiated in May 1979, If no <br />anticipatory releases had been made <br />during 1979 or 1980, Lake Mead's eleva- <br />tion would have been approximately <br />1,208,85 feet (24,223,000 acre-feet) on <br />September 30, 1980, <br /> <br /> <br />Trout lisherman <br />
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