WSP00620

• File Number: 8220.100.40
• Description: CRSP
• Basin: Colorado Mainstem
• Date: 3/14/1963
• Author: USDOI
• Title: Sixth Annual Report on the Statuts of the Colorado River Storage Project
• Water Supply Pro - Doc Type: Annual Report

COLORADO RIVER STORAGE PROJECT

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States. Anything which is provided for herein is subject to change
consistent with whatever rulings are made by the Supreme Court
which might affect the principles and criteria herein set out. They
may also be subject to change due to future acts of the Congress.
2, The principles and criteria set forth hereinafter are applicable
during the Lake Powell filling period, which is defined as that time
interval between the date Lake Powell is first capable of storing water
(estimated to occur in the fall of 1962 or the spring of 1963) and the
date Lake Powell storage first attains elevation 3,700 (content 28
million acre-feet total surface storage), or May 31, 1987, whichever
occurs first. If, in the judgment of the Secretary, the contents of
Lake Powell and Lake Mead warrant such action, and after consulta-
tion with appropriate interests of the Upper Colorado River Basin
and the Lower Colorado River Basin, the Secretary may declare these
principles and criteria no longer applicable.
3. Sufficient water will be passed through or released from either
Lake Mead or Lake Powell, as circumstances require under the pro-
visions of principles 7 and 8 hereof, to satisfy downstream uses of
water (other than for power) below Hoover Dam which uses include
the following:
(a) Net river losses.
(b) Net reservoir losses,
(e) Regulatory wastes.
(d) '1'he Mexican treaty obligation limited to a scheduled 1.5
million acre-feet per year.
(e) The diverSIOn requirements of mainstream projects in the
United States.
4. All uses of water from the main stem of the Colorado River
between Glen Canyon Dam and Lake Mead will be met by releases
from or water passed through Lake Powell or by tributary inflow
occurring below Glen Canyon Dam, Diversions of water directly
out of Lake Mead will be met in a similar manner or, if application
of the criteria of principles 7 and 8 hereof should so require, by water
stored in Lake Mead,
5. The United States will makc a fair allowance for any deficiency,
computed by the method herein set forth, in firm energy generation
at Hoover powerplant, For each operating year deficiency in firm
energy shall be computed as the difference between firm energy
which, assuming an overall efficiency of 83 percent, would have been
generated and delivered at transmission voltage at Hoover power-
plant in that year if water had not been impounded in the reservoirs
of the Colorado River storage project storage units (Glen Canyon,
Flaming Gorge, Navajo, and Curecanti), but excluding the effects
of evaporation from the surface of such reservoirs, and the energy
actually generated and delivered at transmission voltage at Hoover
powerp1ant during that year adjusted to reflect an overall efficiency
of 83 percent. At' the discretion of the Secretary, allowance will
be accomplished by the United States delivering energy, either at
Hoover powerplantcor at points acceptable to both ~he ~ecretary and
the affected Hoover power contractors, or monetartly m an amount
equal to the incremental cost of generating substitute energy. To
the extent the Upper Colorado River Basin fund is utilized the
moneys expended therefrom in accomplishing the allowance, either
through the delivery of purchased energy or by direct monetary pay-

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