4000

• UCREFRP Catalog Number: 4000
• Author: U.S. Department of the Interior.
• Title: Report on Water For Energy in the Upper Colorado River Basin.
• USFW Year: 1974.
• USFW - Doc Type: \
• Copyright Material: NO

in the Upper Colorado River Basin Compact for the apportionment of
available water. Arizona received the right to the consumptive use
of 50,000 acre-feet of water annually and is not charged for main
stem reservoir evaporation.

Water Requirements for Natural Resource Programs on Lands Administered
by the Bureau of Land Management - Lands administered by the Bureau
of Land Management (BLM) in the Upper Colorado River Basin support
the natural resource programs of providing range for livestock,
habitat for game and fish, timber production, watershed management,
impoundments for livestock water, fire protection, and outdoor
recreation. These resource management programs require water which
is obtained from surface flow, surface storage and subsurface
sources on natural resource lands. The BLM does not provide water
for mineral development on lands leased for this purpose.

Table I does not account for the total amount of water used for fish,
wildlife and recreation on natural resource lands. The total use
of water for fish and wildlife on the BLM administered lands is not
classed as man-caused depletions, but rather it is on site, be it
stream or storage. A major portion of the water consumed generally
does not enter into the stream flows on which depletions are estimated.
However, there is an amount of instream consumption by wildlife on BLM
administered lands but this has not been determined. Water for
recreation on BLM lands is that required for daily visitation consump-
tion only. BUM has not attempted to quantify any amounts for
maintaining minimum flows or storage levels for recreation use.
Likewise BUM has not quantified stream flow requirements for wild
and scenic rivers.

Table 2 presents the total present use of water on BLM administered
lands, and the sources of this water by States of the Upper Colorado
River Basin plus Arizona.

Fish and Wildlife - In depicting the nature of fish and wildlife
resources within the Upper Colorado River Basin, exteniive use has
been made of Appendix XIII/Fish and Wildlife, Upper Colorado Region
Comprehensive Framework Study. This appendix was prepared by the
Upper Colorado Region State-Federal Inter-Agency Group and was
published in June 1971. It identifies the major fish and wildlife
species within the Basin, the levels of the consumptive and non-
consumptive uses made of these resources as of 1965, and the trends
in hunting and fishing and associated management problems expected
to occur during the additional time frames of 1966-1980, 1981-2000,
and 2001-2020.

Because of the recent nature of the analytical data in the above
appendix, as well as its geographic area of coverage being coincident

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