WSP07965

• File Number: 8446
• Description: Cache La Poudre Project
• State: CO
• Basin: South Platte
• Water Division: 1
• Date: 7/1/1983
• Title: Cache La Poudre Project Study and Related Correspondence
• Water Supply Pro - Doc Type: Report/Study

characteristics of the Cache la Poudre Basin.

An assessment of existing water supply entities and facilities and of
the operation of these facilities.

An assessment of the operation Of the Cache la Poudre water rights
system and of significant conditional decrees which could impact a
potential project.

Geologic and geotechnical investigations of site suitability for
construction of potential facilities.

Analyses of existing and projected water and power demands.

Formulation of alternative projects to include one or more major
reservoirs.

Reconnaissance-level designs and cost estimates for proposed
facilities.

Reservoir operation studies for: preliminary facility sizing and to
provide a preliminary indication ,of project outputs.

Economic comparisons of costs with potential benefits.

Preliminary financial evaluation~ of total and annual costs under two
different financing assumptions and the projected impact of cost
inflation.

D. FOBllJLM'ION OF ALTERNATIVES

The formulation, evaluation and sele$tion of alternative projects was an
iterative process in which an initial! "universe" of possible development
options was narrowed to eight preliminary1alternatives in Phase I of the study
and subsequently narrowed further to four selected alternatives in Phase II.
Alternatives were developed to provide storage in the upper basin to meet the
objectives of improved management, dev~lopment of new water supplies and
hydroelectric power production using the following concepts as guidelines for
project formulation: '

1. All potential reservoir sites wQuld be located upstream of the City
of Fort Collins as required by S~B. 439.

2. Potential reservoir sites wou~d be situated to control, to the
maximum extent possible, the total flow in the upper basin.

3. All potential, projects would il)clude a storage reservoir primarily
for conservation purposes. ThiS terminal reservoir would store and
regulate flows to meet agricultural, municipal and industrial water
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demands in the lower basin. .

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