C150307 Final Supplimental Impact Statement

• Contract/PO #: C150307
• Contractor Name: Animas La Plata
• Contract Type: Loan
• Loan Projects - Doc Type: Report

TABLE•OF CONTENTS(continued)
Chapter Page No.
3.4.4.2.3 Non-Binding Water End Uses and Conveyance
Systems 3-79
3.4.4.3 No Action Alternative 3-79
3.5 WILDLIFE RESOURCES 3-80
3.5.1 Introduction 3-80
3.5.2 Evaluation Methodology 3-81
3.5.2.1 Methodology 3-81
3.5.2.1.1 Structural Components 3-81
3.5.2.1.2 Non-Structural Components 3-81
3.5.2.2 Significance Criteria 3-82
3.5.3 Affected Environment 3-82
3.5.3.1 Mule Deer 3-82
3.5.3.2 Elk 3-85
3.5.3.3 Golden Eagles and Other Raptors 3-85
3.5.3.4 Species Associated with Wetland and Riparian Habitats 3-85
3.5.4 Environmental Consequences and Mitigation 3-86
3.5.4.1 Refined Alternative 4 3-86
3.5.4.1.1 Structural Component 3-86
3.5.4.1.2 Non-Binding End Uses and Water Conveyance 3-90
3.5.4.2 Refined Alternative 6 3-90
3.5.4.2.1 Structural Component 3-90
3.5.4.2.2 Non-Structural Component 3-91
3.5.4.2.3 Non-Binding Water End Use and Conveyance
System 3-92
3.5.4.3 No Action Alternative 3-92
3.6 AQUATIC RESOURCES 3-93
3.6.1 Introduction 3-93
3.6.2 Evaluation Methodology 3-93
3.6.2.1 Methodology 3-93
3.6.2.2 Significance Criteria 3-94
3.6.3 Affected Environment 3-94
3.6.3.1 Trout Fishery 3-94
3.6.3.1.1 Animas River 3-94
3.6.3.1.2 La Plata River 3-97
3.6.3.1.3 San Juan River 3-98
3.6.3.1.4 Pine and Florida Rivers 3-98
3.6.3.1.5 Lemon Reservoir 3-98
3.6.3.2 Native Fishery 3-98
3.6.3.2.1 Animas River 3-98
3.6.3.2.2 Mancos River 3-99
3.6.3.2.3 La Plata River 3-99
3.6.3.2.4 San Juan River 3-99
3.6.3.2.5 McElmo Creek 3-100
3.6.4 Environmental Consequences and Mitigation 3-100
3.6.4.1 Refined Alternative 4 3-100
3.6.42 Refined Alternative 6 3-107
3.6.4.3 No Action Alternative 3-108
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