CRDSS_Task1_15-21_OperationsOfTaylorParkBlueMesaReservoirs

• Title: CRDSS Task 1.15-21 - Water Rights Planning Model - Operations of Taylor Park and Blue Mesa Reservoirs
• Description: This task memorandum describes the Taylor Park/Blue Mesa exchange agreement.
• Decision Support - Doc Type: Task Memorandum
• Date: 1/9/1995
• DSS Category: Surface Water
• DSS: Colorado River
• Basin: Colorado Mainstem
• Contract/PO #: C153658, C153727, C153752
• Grant Type: Non-Reimbursable
• Bill Number: SB92-87, HB93-1273, SB94-029, HB95-1155, SB96-153, HB97-008
• Prepared By: Riverside Technology inc.

Gunnison River Water Conservancy District, and the Colorado River Water Conservation
District. This agreement amended some of the terms of the 1975 agreement.

The final Water Court decree in Case No. 86CW203 concerning the application of the Upper
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Gunnison River Water Conservancy District for the right to refill Taylor Park Reservoir. This
document provides a comprehensive history and interpretation of the reservoir operations and
agreements.
The managed operation of the storage in Taylor Park Reservoir pursuant to the 1975 exchange agreement
has resulted in significant fishery benefits. Releases within the flow ranges shown in Table 7 have been
beneficial for fishery conditions and recreational uses in the Taylor and Gunnison Rivers downstream
from Taylor Park (Case No. 86CW203, paragraph 22).
TABLE 7
BENEFICIAL FLOW RANGES FOR RELEASES
PeriodOptimum Flow (CFS)
October 16-31100 - 150
November100 - 150
December100 - 150
January100 - 150
February100 - 150
March100 - 150
April300 - 500
May300 - 500
June300 - 500
July500
August500
September500
October 1-15500
In the decree for Case No. 86CW203, a list of accounting conditions are given that summarizes the
Taylor Park and Blue Mesa exchange agreement.
The administration and accounting of the refill storage right in Case No. 86CW203 and the
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senior UVWUA storage decree shall be performed on the basis of a water year that begins on
November 1 and extends through the following October 31.

The rates and patterns of release of water from Taylor Park Reservoir shall continue to be made
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to accomplish fishery and recreational purposes and other purposes of the storage exchange
agreement as provided in the August 28, 1975, and April 16, 1990, contracts.

Water physically in storage in Taylor Park Reservoir and accumulated UVWUA credits in Blue
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Mesa Reservoir at the end of any water year shall be charged against the one annual fill of the
UVWUA water storage right in the next year.

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A275 01.09.95 1.15-21 Fosha, Hyre