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WSP10457
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Last modified
1/26/2010 3:13:02 PM
Creation date
10/12/2006 4:20:33 AM
Metadata
Fields
Template:
Water Supply Protection
File Number
8282.600.10
Description
Colorado River Operating Annual Reports
Basin
Colorado Mainstem
Date
1/1/1989
Author
USDOI/BOR
Title
Operation of the Colorado River Basin 1989 Projected Operations 1990
Water Supply Pro - Doc Type
Publication
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<br />Water Year 1990 <br /> <br />Blue Mesa powerplant will be operated during the water year <br />to meet downstream requirements and to minimize <br />powerplant bypasses at Crystal Dam, Assuming most <br />probable average inflow, a minimum water elevation of 7488 <br />feet is expected by the end of April, with a maximum elevation <br />of 7518 feet in July, <br /> <br />Morrow Point Reservoir is expected to fluctuate up to <br />powerplant capacity during the current water year. Crystal <br />Reservoir will be operated to regulate releases from Morrow <br />Point Reservoir, to meet downstream requirements for <br />diversions through the Gunnison Tunnel, and to protect the <br />blue ribbon trout fIShery in the Black Canyon, Releases are <br />carefully planned to minimize large monthly changes in flow <br />below the Gunnison Tunnel Diversion. The forecasted runoff <br />during the spring of 1990 will be constantly monitored to <br />achieve this objective, <br /> <br />With reasonable maximum inflows, releases from Crystal <br />Dam would be at least 2,500 cfs. Assuming most probable <br />inflow conditions, releases from Crystal Reservoir will raoge <br />from 300 cfs to the maxim um powerplant capacity of 1,700 cfs, <br />in addition to possible bypasses of up to 500 cfs, Under <br />reasonable minimum inflow conditions, releases will range <br />from 300 to 1,500 cfs, Minimum releases from Crystal <br />Reservoir are projected to continuc until the spring of 1990, <br />when. under most probable inflow conditions, Blue Mesa <br />Reservoir will refIll and the downstream releases will be <br />increased, <br /> <br />BlUE MESA STORAGE <br /> <br />1000 ACRE-FEET . <br />10" <br /> <br />... <br /> <br /> <br />... <br /> <br />4.. <br /> <br />2.. <br />o N D ~ f MAW ~ J A 8 0 N D J F W A M J J A . 0 <br />ACTUAL 1989 AND PROJECTED 1990 <br /> <br />PROJECTED OPERATION 1990 <br />REASONABLE MAXIMUM CRYSTAL RELEASES <br /> <br />1000 Of. <br />4 <br /> <br />. <br /> <br /> <br />. <br /> <br />o <br /> <br />MOST PROBABLE RELEASES <br /> <br />. <br /> <br />. <br /> <br />. <br /> <br /> <br />o <br /> <br />REASONABLE MINIMUM RELEASES <br /> <br />4 <br /> <br />. <br /> <br />. <br /> <br /> <br />NDJ FMAMJ JASO <br /> <br />10 <br />
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