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Last modified
1/26/2010 2:29:24 PM
Creation date
10/12/2006 2:40:15 AM
Metadata
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Template:
Water Supply Protection
File Number
8282.600.10.A
Description
Colorado River Annual Operating Plans
Basin
Colorado Mainstem
Date
1/1/1993
Author
CWCB
Title
1994 Annual Operating Plan (AOP)
Water Supply Pro - Doc Type
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<br />re~ain in the 1,30~ 1,400 cfs range through ~'end of December <br />order to reach our ~;rage target at Blue Mesa. <br /> <br />in <br /> <br />NAVAJO October inflow into Navajo was well below average, <br />precipitation during September and October was fairly light. <br /> <br />The high inflow during August and early September increased storage to <br />a seasonal high. Therefore, in order to reduce reservoir storage to an <br />Rppropriate level in anticipation of next years runoff, releases from <br />the reservoir were increased to 750 cfs on October 5th. currently, <br />releases are near this level and it is anticipated that releases will <br />remain near this level until next spring, however adjustments to this <br />(~lease may be made as expected inflow changes. <br /> <br />as <br /> <br />GLEN CANYON - Inflow was near average during October. Water year 1993 <br />inflow was 13.95 MAF or 111 percent of the long term average. Due to <br />the ending of the drought in the Colorado River Basin, the soil moisture <br />deficit has been erased and water year 1994 inflow is expected to be' <br />near average levels. <br /> <br />As most of you are aware the habitat maintenance release scheduled for <br />~pril 1994, has been canceled and is reflected in this update. Because <br />of this cancellation, we will begin a release pattern from Glen Canyon <br />similar to the alternative release pattern presented in the 1994 AOP. <br /> <br />Nlditionally, you will notice a large increase in the bank storage <br />oolumn on Lake Powell in October 1993. This is the result of our mostly <br />completed effort to compile all of our historical records under <br />,c;onsistent procedures and assumptions. The number shown in bank storage <br />in October is our best estimate of what this number should be based on <br />this study and effort. We expect to finalize this effort by the end of <br />December. At it's completion we will make the historical adjustments. <br />l~ anyone has questions about this effort, please feel free to call Brad <br />vickers at (801) 524-5576. <br /> <br />Releases from Glen Canyon will continue to be made under the interim <br />41010' restrictions. <br />
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