WSP07307

• File Number: 8142.100
• Description: Trinidad Project - Studies - Operation Studies
• State: CO
• Basin: Arkansas
• Water Division: 2
• Date: 1/1/1996
• Author: CWCB
• Title: Trinidad Background Info Notebook Part 3
• Water Supply Pro - Doc Type: Report/Study

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OPERATING PRINCIPLES
TRINIDAD DAM AND RESERVOIR PROJECT
(with proposed amendments by Purgatoire River Water Conservancy District
and the City of Trinidad)

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Preamble

The Trinidad Day and Reservoir Project as reported in House Document No. 325, 84th
Congress, 2d Session, and as authorized by the Flood Control Act of 1958, will be operated in
such a manner as to secure the greatest practicable benefits from the regulation and use of the
flows of the Purgatoire River consistent with the 'laws and policies of the State of Colorado and of
the United States including the Arkansas River Compact. The objectives and principles governing
the operation of the Trinidad Dam and Reservoir Project to secure such benefits are contained
within the following articles.

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Article 1-
Article IT'-
Article m -
Article IV -
Article V -
Article VI -

Objectives
Definition of Terms
Flood Control
Irrigation, Municipal and Industrial
Fishery and Recreation
Review and Amendment

Article I - OBJECTIVES

The operation of the Trinidad Dam and Reservoir involves the regulation of the flows of
the Purgatoire River for flood control, irrigation use, municipal and industrial use and recreation,
including a permanent fishery pool. The project plan provides for:

1. Control oftloods originating above the reservoir for benefit of the City of Trinidad
and downstream reaches.

2. Optimum beneficial use of the available water for irrigation and municipal and
industrial uses (municipal and industrial as hereinafter abbreviated M&I) within the project area
consistent with the protection of downstream non-project rights as set forth in House Document
No. 325, 84th Congress, 2d Session, which provides:

(a) Transfer of the storage decree of the Model Land and Irrigation Company
for 20,000 acre-feet annually from the present site to the proposed Trinidad Reservoir.

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(b) Storage in the Trinidad Reservoir of flood flows originating on the
Purgatoire River above the dam which would otherwise spill from John Martin Reservoir.

( c) Storage in Trinidad Reservoir of the winter flows of the Purgatoire River
historically diverted for winter irrigation of project lands.