7401

• UCREFRP Catalog Number: 7401
• Author: U.S. Bureau of Reclamation.
• Title: Ruedi Reservoir, Colorado Round II Water Marketing Program, Final Supplement to the Environmental Statement, Fryingpan - Arkansas Projects, Colorado.
• USFW Year: 1989.
• USFW - Doc Type: Billings, Montana.
• Copyright Material: NO

TABLE OF CONTENTS
Paz
LIST OF FIGURES . . . . . . . . . . . . . . . . . . . . . . . . . . ix
LIST OF TABLES . . . . . . . . . . . . . . . . . . . . . . . . . . . . xi
I. PURPOSE AND NEED
1.1 Background 1.1
1.2 Proposed Action . . . . . . . . . . . . . . . . . . . . . . . 1.4
1.3 Purpose and Need . . . . . . . . . . . . . . . . . 1.4
1.4 Scooe of Issues to be Addressed . . . . . . . . . . . . . . . 1.8
1.5 Authorization for Project . . . . . . . . . . . . . . . . . . 1.10
II. DESCRIPTION OF THE ALTERNATIVES
2.1
2.2
. . . . 2.1
Considered in* Detail . . . 2.2
III. AFFECTED ENVIRONMENT
3.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3.1
3.2 Hydrology . . . . . . . . . . . . . . . . . . . . . . . . . 3.1
3.3 Aquatic Biology . . . . . . . . . . . . . . . . . . . . . . . 3.10
3.3.1 Physical/Chemical Characteristics and Habitat Features 3.10
3.3.2 Fish . . . . . . . . . . . . . . . . . 3.17
3.3.3 Threatened and Endangered Fishes . . . . . . . . . . . 3.22
3.3.4 Other Aquatic Communities . . . . . . . . . . . . . . 3.27
3.4 Wildlife Biology . . . . . . . . . . . . • . . . . . . . . . 3.29
3.5 Socio-Economic Conditions . . . . . . . . . . . . . . . . . . 3.34
3.5.1 Recreational Facilities 3.35
3.5.2 Recreational Use 3.37
3.5.3 Comparison of Ruedi Reservoir Recreation*Resources and
Use to Other Regional Reservoirs . . . . . . . . . . . 3.43
IV. ENVIRONMENTAL CONSEQUENCES OF ALTERNATIVES
4.1 Hydrologic and Biological Consequences . . . . . . . . . . . . 4.1
4.1.1 Hydrology . . . . . . . . . . . . . . . . . . . . . 4.1
4.1.2 Aquatic Biology . . . . . . . . . . . . . . . . . . . 4.19
4.1.2.1 Aquatic Communities . . . . . . . . . . 4.22
4.1.2.2 Threatened and Endangered Fishes . . . . . . . . . . 4.34
4.1.2.3 Biological Opinion . . . . . . . . . . . . . . . 4.35
4.1.3 Wildlife Biology . . . . . . . . . . . . . . . . . . . 4.36
Vi