9367 ‎(3)‎

• UCREFRP Catalog Number: 9367
• Author: Colorado Water Workshop.
• Title: Proceedings
• USFW Year: 1992.
• USFW - Doc Type: Colorado Water Workshop July 22-24, 1992.
• Copyright Material: NO

(1949). They were prompted by a 1946 Bureau of Reclamation
survey which recommended major projects, primafilY in the
Upper Basin, and by the Secretary of 'Interior'ls announced
reluctance to seek Congressional authorizati9n of those
projects until the Upper Basin states had reache~ an alloca-
!
i
tion of the water provided to them by the 1922 Co~pact.24
The Upper Colorado River Compact apportions to each
Upper Bas~n state the following percentage of the Upper
Basin's total consumptive use of River water !per annum:
I
Colorado, 51.75%; Utah, 23%; Wyoming, 14%; ~ew Mexico,
11.25%. Arizona, whose northeast corner drai~s into the
upper basin, was given a flat 50,000 acre-fe~t a year.
i
"Consumptive use" was defined by Article VI as the man-made

I

depletions of the virgin flow measured. at Lee's Ferry. This
definition, controverted by the Lower Basin, allo s evapora-
tion and channel losses that would have occurre without a

state's diversions to be setoff against its de letions.25
ArtiCle IV of the Compact adjusts a state's appo ionment in
the event it has overdrawn in the prior ten years. Reservoir
losses are apportioned to each state by Article v.
E. Colorado River Storage project Act of 19 6
Passed despite opposition from southern Ca ifornia,26
the Colorado River Stora~~project Act of 1956, 43
U.S.C. 1620 (1976), was one frUit of the Upper Co1 rado River
Basin Compact. It authorized construction and
dams and powerplants at Glen Canyon, Flaming G

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