WSP09069

• File Number: 8220.106
• Description: Animas-La Plata
• State: CO
• Basin: San Juan/Dolores
• Water Division: 7
• Date: 4/1/1996
• Title: Final Supplement to the Final Environmental Statement - Volume I
• Water Supply Pro - Doc Type: EIS

CONTENTS

Page

Summary

Chapter I - Purpose and Need

Introduction ...................................................... I-I
Purpose of and Need for the Project. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . I-I
Colorado Ute Indian Water Rights Settlement Act of 1988 ................... 1-2
Cost Sharing and Project Phasing ...................................... 1-4
Purpose of the Final Supplement to the Final Environmental Statement . . . . . . . . . 1-6
Public Input to the FSFES ......................... . . . . . . . . . . . . . . . . . . . 1-8
Summary of Significant Planning and Study Activities Since 1980 ............. 1-9
Relationship of Project to Other Activities/Projects . . . . . . . . . . . . . . . . . . . . . . . . . 1-11
Environmental Review and Consultation Requirements ..................... 1-16

Chapter II - Proposed Action and Alternatives

Introduction ...................................................... II-I
Summary of Alternative Formulation Activities Prior to 1980 FES ............. II-2
Alternatives Considered in the 1980 FES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-3
Plan at Authorization ............................................ II-3
Rationale for Elimination ..................................... II-3
Teft Diversion Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-4
Rationale for Elimination ..................................... II-4
Bondad Diversion Plan .... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-4
Rationale for Elimination ..................................... II-5
Additional Alternatives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-5
Alternatives Described in the FSFES ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-5
The No Action Alternative (No Project) ................. ............ II-5
The 1980 FES Plan. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-6
General Project Construction and Operation (1980 FES) .............. II-6
Project Facilities Description (1980 FES Plan) ...................... II-7
Durango Pumping Plant and Ridges Basin Inlet Conduit

(1980 FES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-7
Ridges Basin Dam and Reservoir (1980 FES) . . . . . .. . . . . . . . . . . . . II-8
Durango M&I Pipeline (1980 FES) . . . . . . . . . . . . . . . . . . . . . . . . . . . II-8
Ridges Basin Pumping Plant (1980 FES) ...................... II-9
Dry Side Canal and Long Hollow Tunnel (1980 FES) ............ II-9
Operations (1980 FES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . II-9
Southern Ute Diversion Dam and Inlet Canal (1980 FES) ......... II-10
Operations (1980 FES) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. II-11
Recreation Facilities (1980 FES) ............... . . . . . . . . . . . . .. II-11
Electrical Transmission Facilities (1980 FES) ................... II-12
Sources of Construction Materials (1980 FES) ...................... II-12
Cultural Resources Program (1980 FES) .......................... II-13

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