9600

• UCREFRP Catalog Number: 9600
• Author: Brown and Caldwell.
• Title: Phase 2 Coordinated Facilities Water Availability Study for the Endangered Fishes of the Upper Colorado River - Final Report.
• USFW Year: 2003.
• USFW - Doc Type: \
• Copyright Material: NO

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It should be noted that impacts to other hydropower generation facilities (e.g. Williams Fork, Dillon,
East Portal) were not analyzed during the course of this study.
2.3.11 Municipal Recreation Agreement
The June 19, 2001 Municipal Recreation Agreement Between the United States, the Town of Palisade,
the City of Grand Junction, and the City of Fruita allows for a release of HUP Surplus water to be
made from Green Mountain Reservoir for municipal recreational purposes if:
¦ HUP Surplus water is not needed to generate power at the Grand Valley Power Plant;
¦ Target flows for recovery of the endangered fishes in the 15-Mile Reach, as specified in
USFWS (May 1995, p. 65), are not being met; and
¦ Sufficient HUP Surplus water exists to make the release.
Releases of Green Mountain Reservoir HUP water for municipal recreational purposes generally begin
' in approximately mid-August and can continue into the fall.
StateMod and the C1 Data Set, C1 Data Set First Revision and the C1 Data Set Second Revision do
not model releases of HUP Surplus water under the Municipal Recreational Agreement. The C1 Data
Set Third Revision (and subsequent revisions), however, do permit release of Surplus HUP water
under the Municipal Recreation Agreement (see Table 2).
2.3.12 Green Mountain Reservoir Accounting and Administration
' The Accounting Principles for Green Mountain Reservoir (Revised Draft, April 21, 1994) include
three categories of reservoir fill:
¦ Physical Fill. "A physical fill of Green Mountain Reservoir (GMR) is achieved when
the actual water surface reaches an elevation of 7,950.0 feet. The contents of GMR at
' 7,950 feet are 153,639 acre-feet. This includes 40,845 acre-feet of storage capacity at
elevation 7,870 feet, designated the minimum power pool, and 112,794 acre-feet of
active conservation capacity.. The minimum power pool consists of 6,860 acre-feet of
' dead storage at elevation 7,800 feet and 33,985 acre-feet of inactive storage. The
power plant generating units cannot generate electrical energy if the water surface of
the reservoir falls below elevation 7,870 feet. Water can be released through the river
outlet when the contents of GMR are below elevation 7,870 feet and above elevation
7,800 feet."
¦ Division 5 Fill. "The sum of the (a) water actually stored in GMR since the initiation
of storage (between April 1 and May 15 of each year), (b) releases of inflow since the
initiation of storage (between April 1 and May 15 of each year) to replace depletions of
Senate Document No. 80 beneficiaries, including contractors, who are subject to any
' "call" on the Colorado River by an appropriator junior to August 1, 1935 greater than
60 cfs (amount that satisfies operating criteria provisions including downstream rights
on the Blue River senior to August 1, 1935), (c) releases of inflow greater than (b) that
' bypass the power plant, (d) depletions caused by Senate Document No. 80
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