WSP13005

• File Number: 8282.500
• Description: Coordinated Long Range Operation of Colorado River Reservoirs
• Basin: Colorado Mainstem
• Date: 3/21/2005
• Author: USDOI/BOR
• Title: Long-Range Operating Criteria Amended 02/21/2005
• Water Supply Pro - Doc Type: Operating Principles/Plan

(4) In the application of Article II(3)(b) herein, 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 to these criteria shall not prejudice the
position of either the upper or lower basin interests with respect to required
deliveries at Lee Ferry 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:

(a) Mexican Treaty obligations;
(b) Reasonable consumptive use requirements of mainstream users in the
Lower Basin;
( c) Net river losses;
(d) Net reservoir losses;
(e) Regulatory wastes.

(2) [Until such time as mainstream water is delivered by means of the
Central Arizona Project, the consumptive use requirements of Article
Ill(l)(b) of these Operating Criteria will be met.] <(Adopted: 6/10/1970,
Deleted: 03/21/2005)>

(3) After commencement of delivery of mainstream water by means of the Central
Arizona Project, the consumptive use requirements of Article ill(I)(b) of these
Operating Criteria will be met to the following extent:

(a) Normal: The annual pumping and release from Lake Mead will be
sufficient to satisfy 7,500,000 acre-feet of annual consumptive use in
accordance with the decree in ~zona v. California, 376 U.S. 340 (1964).

(b) Surplus: The Secretary shall determine from time to time when water
in quantities greater than "Normal" is available for either pumping or
release from Lake Mead pursuant to Article ll(b)(2) of the decree in
Arizona v. California after consideration of all relevant factors, including,
but not limited to, the following:

(i) the requirements stated in Article ill(l) of these Operating
Criteria;

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