WSP07544

• File Number: 822.600.10
• Description: Colorado River Annual Operating Plan - Annual Reports
• Basin: Colorado Mainstem
• Date: 1/1/1992
• Author: USDOI/BOR
• Title: Annual Operating Plan
• Water Supply Pro - Doc Type: Annual Report

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III of the Operating Criteria; and (5) whether apportioned but unused water by one

or more Lower Division States exists and can be used to satisfy beneficial

consumptive use requests of mainstream users in other Lower Division States as

provided in the decree in Arizona v. California.

Consistent with the above determinations and in accordance with other provisions

of 'The Law of the River," the AOP was developed with "appropriate consideration

of the uses of the reservoirs for all purposes, including flood control, river

regulation, beneficial consumptive uses, power production, water quality control,

recreation, enhancement of fish and wildlife, and other environmental factors"

(Operating Criteria Article 1(2)).

Since the hydrologic conditions of the Colorado River Basin can never be

completely known in advance, the AOP addresses the operations resulting from

three different hydrologic scenarios: the probable maximum, most probable, and

probable minimum reservoir inflow conditions, River operations under the plan are

modified during the year as runoff predictions are adjusted to reflect existing

snowpack and climate conditions.