BOARD00289

• Board Meeting Date: 3/21/2002
• Description: WSP Section - Colorado River Basin Issues - Colorado River Coordinated Long-Range Operating Criteria Five Year Review
• Board Meetings - Doc Type: Memo

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(e) The "Report of the Committee on Probabilities and Test Studies to the Task .
Force on Operating Criteria for the Colorado River," dated October 30, 1969, and
such additional studies as the Secretary deems necessary;
(f) The necessity to assure that upper, basin consumptive uses not be impaired
because of failure to store sufficient water to assure deliveries under Section
602(a)(I) and (2) of Public Law 90-~'37.
(2) If, in the plan of operation, either:
(a) the Upper Basin Storage Reservoirs active storage forecast for September 30
of the current year is less than the quantity of 602(a) Storage determined by the
Secretary under Article n(I) hereof, for that date; or
(b) the Lake Powell active storage forecast for that date is less than the Lake Mead
active storage forecast for that date: I
the objective shall be to maintain a minimum release of water from Lake Powell of 8,23
million acre-feet for that year. However, for:the years ending September 30, 1971 and
1972, the release maybe greater than 8.23 million acre-feet ifn~cessary to deliver .
75,000,000 acre-feet at Lee Ferry for the IO-year period ending September 30, 1972.
(3) If, in the plan of operation, the Upper Basin Storage Reservoirs active storage forecast .
for September 30 of the current water year is greater than the quantity of 602(a) Storage
determination for that date, water shall be released armually from Lake Powell at a rate
greater than 8.23 million acre-feet per year to the extent necessary to accomplish any or
all of the following objectives:
(a) to the extent it can be reasonably applied in the States of the Lower Division to
the uses specified in Article ID(e) of the Colorado River Compact, but no such .
releases shall be made when the active storage in Lake Powell is less than the
active storage in Lake Mead, . .
(b) to maintain, as nearly as practicable, active storage in Lake Mead equal to the
active storage in Lake Powell, and
( c) to avoid anticipated spills from Lake Powell.
(4) In the application of Article lI(3)(b) her~in, the annual release will be made to the
extent that it can be passed through Glen Canyon Powerplant when operated at the
available capability of the powerplant. Any water thus retained in Lake Powell to avoid
bypass of water at the Glen Canyon powerplant will be released through the Glen Canyon
Powerplant as soon as practicable to equalize the active storage in Lake Powell and Lake
Mead.
(5) Releases from Lake Powell pursuant tOI these criteria shall not prejudice the position
of either the upper or lower basin interests [with respect to required deliveries at Lee Perry
pursuant to the Colorado River Compact. ! .

III. Operation of Lake Mead

(1) Water released from Lake Powell, plus; the tributary inflows between Lake Powell and
Lake Mead, shall be regulated in Lake Mead and either pumped from Lake Mead or
released to the Colorado River to meet requirements as follows:

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