WSP10764

• File Number: 8277.200
• Description: California Water Resources Association/California Salinity Projects
• State: CA
• Basin: Colorado Mainstem
• Date: 1/1/1963
• Title: Colorado River Board of California Annual Report 1969
• Water Supply Pro - Doc Type: Annual Report

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Plate 11 shows the computed power gener-
ation at Hoover Powerplant and actual stor-
age in Lake Mead and computed power gen-
eration and storage absent the filling of the
Colorado River Storage Project reservoirs.
Hoover Powerplant 1968-69 energy deficien-
cies and accumulated deficiency since Glen
Canyon closure are shown in Table 8.

Table 8
FIRM ENERGY DEFICIENCY AT HOOVER POWER PLANT
CAUSED BY FILLING OF CRSP RESERVOIRS
(Millions of KW-Hrs)

1968-69

Computed Computed
Power Power
Generation I Genel1ltion I
Absent with
Filling Filling
of CRSP of CRSP
Reservoirs Reservoirs

Accumu-
hued
Deficiency 3

Totsl
Computed
Deficiency
During
Month t

Accumulated
Deficiency as
of 9/30/68 ........ 42604
October 1968.... 325 205 120 4380
November ........ 312 193 119 4499
December ........ 315 233 82 4581
January 1969.... 299 232 67 4648
February .......... 329 232 97 4745
March................ 362 347 15 4760
April ................ 370 375 -5 4755
May.................. 398 350 48 4803
June .................. 357 316 41 4844
July.................... 361 326 35 4879
August.............. 337 295 42 4921
September ........ 294 264 30 4951

I Computed at 83 percent efficiency in accordance with filling criteria for
Lake Powell adopted April 4, 1962.
I Delivery of deficiency energy to Hoover allottees may follow a different
schedule.
3 Deficiency which has been compensated for, eirher in power or money.
41ndudes zoo million kilowatt hours of "impairment" energy.

Recent Power Developments. Section
303 of the Colorado River Basin Project Act,
P.L. 90-537, requires the Secretary of the In-
terior to submit to Congress no later than
September 30, 1969, his recommended plan
for supplying the power requirements of the
Central Arizona Project and augmenting the
Lower Colorado River Basin Development
Fund. In a letter dated September 30, 1969,
the Secretary advised Congress that the most
feasible plan to supply the pumping power
requirements of the Central Arizona Project
is to participate with non-federal entities in

construction and operation of joint genera-
tion and transmission facilities. Contracts
were signed on December 12, 1969, with five
utilities for participation in the proposed 2,
310,000 kilowatt thermal plant near Page,
Arizona (Navajo Power Project). The Bureau
of Reclamation would be entitled to 24.3 per-
cent, or 561,000 kilowatts, of the generating
capability. The Los Angeles Department of
Water and Power, one of the five participat-
ing utilities, would be entitled to 21.2 per-
cent.
The 561,000 kilowatt pumping power re-
quirements for the Central Arizona Project
were based upon a main canal conveyance
capacity of 3,000 cubic feet per second, as
requested by the Arizona Interstate Stream
Commission in a letter dated September 22,
1969, to the Department of the Interior.
Power contracts regarding development of
the proposed Kaiparowits thermal generat-
ing plant in southern Utah near Lake Powell
were signed by the Secretary of the Interior
on October 2,1969. The contracts involve the
Southern California Edison Company, San
Diego Gas and Electric Company, Arizona
Public Service Company and the Bureau of
Reclamation. Following the signing of the
contracts, a letter of agreement was also ex-
ecuted between the federal government and
private utilities providing for power coordi-
nation and mutual assistance with regard to
the San Juan thermal plant proposed for con-
struction in the Four Corners area of New
Mexico.

Havasu Pumped Storage. Project. Ari-
zona Power Authority in 1969 applied for a
preliminary permit, for a 36-month period,
from the Federal Power Commission to make
engineering and economic studies for a
pumped storage hydroelectric project at
Lake Havasu. The Havasu Project would be
a 1,000 megawatt (four 250 mw units) pump-
ing-generating plant located adjacent to the
Bill Williams River arm of Lake Havasu,
about 6 miles southeast of Parker Dam.
Water would be pumped from and returned
to Lake Havasu through about six miles of
tunnels, canals and penstocks. An upper

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