WSP04498

• File Number: 8276.120
• Description: Grand Valley Unit-Colorado River Basin Salinity Control Project
• State: CO
• Basin: Colorado Mainstem
• Water Division: 5
• Date: 6/1/1983
• Title: Supplement To Definite Plan Report: Stage Two Development Grand Valley Unit
• Water Supply Pro - Doc Type: Definite Plan Report

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CHAPTER V

STAGE TWO PLAN OF DEVELOPMENT

the interest rate in effect at the time of authorization.

The cost

effectiveness analysis for Stage Two and the entire unit is shown in

Table 9.

Cost allocation and repayment

Stage Two costs have been allocated in accordance with the authoriz-

ing legislation, Public Law 93-320, which directs that interest during

construction is nonreimbursable.

Seventy-five percent of the construc-

tion costs were considered a national obligation because of the large

ownership of Federal lands adjacent to the Colorado River and because of

the United States commitment to Mexico.

The remaining 25 percent would

be allocated to the Upper and Lower Colorado River Basin Development

Funds.

The act requires that repayment be made within 50 years and

it is the intent of the law that increased OM&R costs due to salinity

improvement work be borne by the conservancy districts or water user

organizat ions operat ing the projects.

The a llocat ion and repayment of

Stage Two and total Grand Valley Unit is shown in Table 10.

Development Program

A l3-year program would be required for construction of the entire

Stage Two plan of development and is presented on the development program

(PF-2) on page 54.

The individual features of the plan would be constructed for the

most part in order of their cost effectiveness ranking. Two exceptions

are the west end of the Government Highline Canal and the Independent

Ranchmen's laterals.

The west end of the Government Highline would

be lined simultaneously with its laterals to provide a more functional

system and more efficient operation. The Independent Ranchmen's laterals

52