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Last modified
7/14/2009 5:02:36 PM
Creation date
5/24/2009 7:20:28 AM
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UCREFRP
UCREFRP Catalog Number
9602
Author
Clayton, R. and A. Gilmore.
Title
Flaming Gorge Draft Environmental Impact Statement Hydrologic Modeling Report.
USFW Year
2002.
USFW - Doc Type
\
Copyright Material
NO
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• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />• <br />I? <br />"J <br />Flow Durations (May - July) <br />Reach 1 <br />14000 <br />No Action 4 Week Floe <br />12000 Historic 4 Week Plow (71-91) <br />Action 4 Week Flow <br />10000 <br />8000 <br />6000 <br />4000 <br />2000 <br />t)% ?0171 409 60<< S09r I (3l)5'? <br />Percent Exceeded <br />Flaming Gorge Annual Bypass Release Results <br />Water released through the bypass tubes and the spillway (bypasses) can have a direct <br />impact on the amount of power produced at Flaming Gorge Dam. For the purpose of comparing <br />the Action and No Action alternatives in terms of impact to power production, the distributions of <br />annual bypass volumes are shown in Figure 14. The figure shows the percentage of occurrences <br />associated with the total volume bypassed each year. The model results indicate that the Action <br />alternative will likely have about a 1 in 2 chance of requiring a bypass (about 50% of the time) in <br />any given year while the No Action alternative will likely have about a 1 in 5 chance of requiring a <br />bypass (about 22% of the time) in any given year. These frequencies have not changed much <br />from those reported in the October report, however the magnitude (volume) of these bypasses has <br />diminished substantially. <br />Figure 14 Annual Bypass Volume Distribution
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