WSP05411

• File Number: 8141.700
• Description: Fryingpan-Arkansas Project - Annual Operating Plans and Reports
• State: CO
• Basin: Arkansas
• Water Division: 5
• Date: 11/1/1990
• Author: US DoI BoR
• Title: Annual Operating Plan Fryingpan-Arkansas Project Colorado 1990 - 1991
• Water Supply Pro - Doc Type: Annual Report

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III. HYDROLOGIC CONDITIONS AND MAJOR WEAT~ER EVENTS - WATER YEAR 1990
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II. PROJECT FEATURES IN OPERATION DURING WATER YEAR 1990

Ruedi Reservoir was operated for flood control, recreation, and fish and
wildlife purposes. Water from Ruedi Reservoir is available for sale on a
year-by-year basis, under temporary contracts based on present needs, and
for the four long-term contract holders.

Turquoi se Lake was operated for regu1 at ion ,of Project and nonproject water
on a service basis, as well as for incidental fish and wildlife and
recreation purposes.

Twin Lakes and Mt. Elbert Forebay (a single purpose storage facility for
pumped-storage peak power development) were operated for regu1 at ion of
Project and nonproject water on a service basis, as well as for the
operation of Mt. Elbert Pumped-Storage Powerp1ant.

Pueb 10 Reservoi r was operated for regu1 at ion of Project and nonproject water
on a service basis, as well as for flood control, fish and wildlife, and
recreation purposes.

Runoff on the West Slope was below normal with inflow to Ruedi Reservoir
at 78,900 acre-feet (60 percent of normal). West Slope imports to the
Arkansas River Basin were maximized throughout the year to collect as much
water as possible. Total imports were 46;610 acre-feet.

Maximum temperature at Meredith occurred 'on June 24, 1990, with 900, the
minimum temperature was recorded at -I5f on January 4, 1990. Maximum
precipitation from snow was recorded on December 18, 1989, with 0.46 inch
of moisture and 12 inches of snowfall. !Maximum precipitation from rain
occurred in the three-day period of September 17-19 with 0.77 inch of rain.

The Arkansas River Basin runoff was below normal on the entire system.
Turquoise and Twin Lakes native runoff was about 79 percent and 57 percent
respectively. Pueblo Reservoir native :inf10w was about 74 percent of
normal.

Maximum temperature at Sugar Loaf occurr~d on July 3, 1990, with 850, the
minimum temperature was recorded at -15 on December II, 1989. Maximum
precipitation from snow was recorded on November 27, 1989, with 0.77 inch
of moisture from II inches of snow. Maximum precipitation from rain
occurred on July 5, 1990 with 0.70 inch of rain.

Twin Lakes maximum temperature was 841 on July 1, 1990, and mimimum
temperature was a -ISO on January 17, i1990. Maximum precipitation was
recorded was 0.57 inch on September 28, i1990. Maximum precipitation from
snow was recorded on April 30, 1990, wi~h 10 inches of snow and 0.86 inch
of moisture. This was the wettest April in the last 30 years with a total
of 2.46 inches of moisture.

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