WSP08369

• File Number: 8276.120.10
• Description: Grand Valley Unit-Colorado River Basin Salinity Control Project
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 3/2/1983
• Title: Agenda Item 14 March 3 1983 Board Meeting--Colorado River Basin Salinity Control Program
• Water Supply Pro - Doc Type: Board Memo

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CetORADO RIVER BOARD OF CALIFORNIA

lar.soulH BROAOWAY. ROOM 8103
LOS ANOrtES, CALIfORNIA. 90012
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SUBJECT:

January 28 '12113
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Members, Colorado River Basin Salin~ ~ "~/~;>~.
Control Forum and \'lork G'....'1' J.~'I,: ." :7., rtj);;...
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Salinity Control - Cost Sharing cO,.'O<'Ci;..... :'~!(:A) 'f)/
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Copies of the INJi!:laU vc report!: on S('na Ie Oi 1 [ :i.i2~O/.
were sent to you on December 30, 1982 by Jack Barnett. In
his memorandum of January 14, 1983, Jack identified four
major issues which may require analYJis and policy decisions
by the Forum. Jack and I discussed the four issues and it
was agreed that I would analyze the proposed changes in
cost sharing requested by the Administration.

M E M 0 RAN 0 U M

TO:

Jack has asked Interior and Agriculture for additional
information on this item. I decided to send this memorandum
and we will forward any other information as soon as we re-
'ceive it.

Background

The thrust of the statements made by Interior with re-
spect to cost sharing is to retain the 75 percent federal
and 25 percent non-federal cost sharing for the E:!liLire
salinity control program, but to have the non-federal ~hare
either paid as up-front financing or to be paid over 50 years
with interest at the average federal long-term interest cost.
The impact of these alternatives was analyzed using infor-
mation developed by the salt routing model used for the Forum
salinity projections, assuming a long term dependable yield
of 14 million acre-feet per year and a continuation of the
low rate of basin development. Based on this analysis, the
full impact on the River's salinity of upstream development
would occur in the year 2020.

The three authorized salinity control units, Grand Valley,
Paradox Valley and Las Vegas Wash, are projected to reQove
about 660,000 tons annually. In order to maintain the numcri:
criteria, an additional 1.4 million tons of salt must be pre-
vented from entering the river system.