WSP10864

• File Number: 8220.102.01.I
• Description: Aspinall ‎(AKA Curecanti)‎
• State: CO
• Basin: Gunnison
• Water Division: 4
• Date: 1/1/1991
• Title: Scopes of Work - Endangered Fish Program as Related to Aspinall
• Water Supply Pro - Doc Type: Report/Study

~

I
;,

........------.....

'-

.

.

F"I-'tl -:;:l:.. 1'7

FORM 2

RECOVERY IMPLEMENTATION PROGRAM
FOR THE ENDANGERED FISH SPECIES
IN THE UPPER COLORADO RIVER BASIN

FY 1991
SCOPE OF WORK
RESEARCH PROPOSAL

dd 4 (qCfo _~3qml
I

Lead Agency:
Submit ted by:

U.S. Fish & Wildlife Service, Colorado River Fishery Project
Lynn R. Kaeding, Project Leader Date: 7 May 1990
Charles W. McAda, Fishery Biologist
529 25 1/2 Road, Suite B-110, Grand Junction, Colorado 81505
303.245-9319

Address:
Phone:

and

Bob Will i ams
U. S, Bureau of Reclamation, Salt Lake City, Utah

I.Title of Proposal: Development of Aspinall Consultation Work Plan
(an "Ongoing Project")

II.Relationship to Recovery Program/Ranking Factors:

Determination of how Aspinall Unit operation has affected the habitat of
endangered fishes and how unit operation might be modified to enhance the
physical, chemical, and biological habitat for the rare fishes of the
Colorado River is important to the recovery of the endangered species,
Recommendation of Aspinall Project Section 7 studies has been identified
as an important need by the Implementation Committee.

Development of the Aspinall Unit Consultation work plan was begun in
FY 90, Initial products included' a draft status report on the endangered
fishes of the upper Colorado River and a draft work plan outline that
identified tentative management objectives and information needs for each
of these species in the upper Colorado River. At a February 1990 meeting
between representatives of USBR and FWS, these draft documents were
discussed and it was made evident to FWS that future studies conducted as
part of the Aspinall Unit consultation process must clearly be linked to
demonstrable habitat changes that have resulted from Aspinall Unit
operation. Although representatives of both agencies agreed that this was
a logical approach, an assessment of the changes to the river environwent
that have resulted from Aspinall Unit operation had yet to be performed,
Thus linkage of study proposals to the effects of Aspinall operation was
not yet possible. In recognition of this important information gap, we
immediately began hydrologic, temperature-regime and sediment analyses
needed to describe how Aspinall Unit operation has affected the physical
environment of the river. The present Scope of Work is in support of both
the completion of this important initial effort (FY 90) and the
development of a subsequent work plan outline (FY 91). The work plan

>,