Board Meeting 12/02/1982

• Board Meeting Date: 12/2/1982
• Description: CWCB Meeting
• Board Meetings - Doc Type: Meeting

historical snowmelt flood. Estimates of the probable rate of
accumulation of sediment in the reservoir indicate that the gross
usable capacity would decrease from its original 196,000 acre-
feet to 106,500 acre-feet after 100 years.

WATER RIGHTS AND STORABLE WATER

The Colorado River Water Conservation District holds a
conditional decree for the Una Reservoir project for 195,983.5
acre-feet of storage and 2,700 cfs of direct flow rights with an
appropriation date of March 16, 1965. An evaluation of the
physical and legal availability of Colorado River water for
storage at the Una project based on this decree and estimated
depletions by other senior water rights was made. Also
analyzed was the assumed transfer of the Placita Reservoir
conditional water rights decree on the Crystal River, with an
appropriation date of April 22, 1957, to Una Reservoir.

The estimated annual storable flows with the Una decree for
an average runoff year, based On maximum, average and minimum
development of senior conditional water rights, are,
respectively: 598,000, 863,000 and 1,102,000 acre-feet. For the
Placita decree transferred to Una, these values become 641,000,
866,000 and 1,103,000 acre-feet.

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