WSP00433

• File Number: 8141.600.20
• Description: Fryingpan-Arkansas Project - Studies - Environmental Studies
• State: CO
• Basin: Arkansas
• Water Division: 5
• Date: 4/16/1975
• Author: US DoI BoR
• Title: Final Environmental Impact Statement Volume 2 of 2, Pages XI-422 to XI-519
• Water Supply Pro - Doc Type: EIS

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Paragraph 19 of the Operating Principles of the Fryingpan-Arkansas Project
requires: "To assure Project operation in conformity with the operating
principle heretofore stated, to provide a means for the collection
and interchange of information, and to provide a method for the con-
tinued study of Project operations tothe end that, if the stated
operating principles may be improved upon, recommendations for changes
may be made to the contracting parties, a commission shall be created
in an appropriate manner to be composed of one representative of the
Southeastern Water Conservancy District, one representative of the
Colorado River Water Conservation District, two representatives of
the United States and one representative of the State of Colorado
appointed by the Colorado Water ConserVation Board after consultation
with the Colorado Game and Fish Commission. The powers of such
Commission shall be limited to the collection of data, the making of
findings of fact, and the suggestion of changes in Operating Principles."

~'4. Issue: It appears that Hunter Creek is going to be dried up and
half the flow of the Fryingpan River will be taken to deliver water
to the eastern slope under the provisions of Public Law 87-590.

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Raised by:

RepresentinR

Joseph Edwards
*T81ll Scott
*Stacy Stsndley

Pitkin County Commissioners
Colorado Rivers Council
Mayor of Aspen

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Response:

Although the Operating Principles do not specifically mention minimum
flow requirements for the Hunter Creek diversion system, the minimum
flow recommended by the Fish and Wildlife Service will be bypassed
WO~Q toe aiverslon system is completed. These are as follows: Hunter
Creek 8.5 ft3/s, Midway Creek 2.5 ft3/s, and No Name Creek 3.0 ft3/s.
Pitkin County has filed for the water rights for fish bypass minimum
flows below the points of diversion in the Hunter Creek collection
system.

The Operating Principles do list the requirements for minimum flow
bypasses for the diversion points at the Fryingpan River collection
system. Table 11-8 lists the streams in the Fryingpan Valley and
shows the minimum bypass flows for each stream at the point of diversion.
These minimum flows are being provided for the completed diversion
structure and when the rest of the diversion works are in operation,
the minimum flow bypasses will also be adhered to. When natural flows
are less than these minimums, no diversions will be made.

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XI-451