WSP04343

• File Number: 7630.325
• Description: Wild and Scenic-Gunnison River-Curecanti Unit
• State: CO
• Basin: Gunnison
• Water Division: 4
• Date: 12/1/1986
• Author: WBLA inc
• Title: Gunnison-Curecanti-Curecanti Instream Flow Water Rights Study
• Water Supply Pro - Doc Type: Report/Study

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The study considers the protection of: a 300 cfs year-round trout

flow in the 29-mile reach; a 2000 cfs endangered fish flow in August and

September at Westwater on the Colorado River near the state line below the

Gunnison River confluence; and 600 cfs boating flow in the 29-mile reach

from June to September.

The study aSSUMes that instream flows in the 29-mile reach can be

protected:

By calling water under the 1969 decree (1965 appropriation datel for

the 300 cfs of direct flow water rights to be donated by the

Pittsburgh & Midway Coal Mining Company (P&Ml, and by making Blue
Mesa storage releases keyed to a 200 cfs flow in the 29-mile reach;

or

By just making Blue Mesa storage releases keyed to a 300 cfs flow in
the 29-mile reach; or

By calling water under the 300 cfs P&M direct flow water right, by

making Blue Mesa storage releases keyed to a 300 cfs flow, and by

calling water froM June through September under a 600 cfs direct

flow, federally reserved, wilderness water right with a 1976

priori ty date.

The study assumes that the 2000 cfs endangered fish flow at

Westwater can be protected by making Blue Mesa storage releases keyed to a

300 cfs flow in the 29-mile reach, and by making an additional 400 cfs

WBLA, Inc. 1909 Broadway, 13, Boulder, Colorado 80302