WSP10595

• File Number: 8220.106
• Description: Animas-La Plata
• State: CO
• Basin: San Juan/Dolores
• Water Division: 7
• Date: 1/1/2000
• Title: Draft Supplemental Environmental Impact Statement - Volume 1
• Water Supply Pro - Doc Type: EIS

TABLE OF CONTENTS (continued)

Chapter

Pal!e No.

2.4

Environmental Impacts Associated with
Alternative 9 .............................. 2-70
Evaluation of the Capability of Alternative 9 to
Meet Purpose and Need Requirements of the

Project ................................... 2-70
Evaluation of the Technical and Economic Merits
of Alternative 9 ............................ 2-71
2.3.2.10 Alternative 10 - No Action Alternative .....................2-72
2.3.2.10.1 Environmental Impacts Associated with
Alternative 10 ............................. 2-72
2.3.2.10.2 Evaluation of the Capability of Alternative 10 to
Meet the Purpose and Need Requirements of
the Project ................................ 2-73
2.3.2.10.3 Evaluation of the Technical and Economic Merits
of Alternative 10 ........................... 2-73
2.3.3 Summary of Strengths and Weakness of Each of the Alternatives ........2-74
2.3.3.1 Alternative 1- Administration Proposal ....................2-74
2.3.3.2 Alternative 2 - Administration Proposal with Recreation Element

Added. . . . . . , . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-74
2.3.3.3 Alternative 3 - Administration Proposal with San Juan River Basin
Recovery Implementation Program Element Added ........... 2-75
2.3.3.4 Alternative 4 - Administration Proposal with San Juan River
Basin Recovery Implementation Program and Recreation
Element Added . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-75
Alternative 5 - Animas-La Plata Reconciliation Plan .......... 2-76
Alternative 6 - Animas River Citizen's Coalition Conceptual
Alternative ...........................................2-76
2.3.3.7 Alternative 7 - 1996 Final Supplement to the Final Environmental
Statement Recommended Action . . . . . . . . . . . . . . . . . . . . . . . . . . 2-77
2.3.3.8 Alternative 8 - Administration Proposal with an Alternative Water
Supply for Non-Colorado Ute Indian Entities ................ 2-77
2.3.3.9 Alternative 9 - Citizens' Progressive Alliance Alternative ...... 2-78
2.3.3.10 Alternative 10 - No Action Alternative... .. . .... .. . .. .... ..2-78
2.3.4 Summary of Alternatives Evaluation and Selection of Alternatives for Further
Refinement and Study. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-78
2.3.4.1 Environmental Impact Summary .......................... 2-79
2.3.4.2 Purpose and Need Summary ............................. 2-79
2.3.4.3 Technical and Economic Sununary ........................ 2-85
2.3.4.4 Selection of Alternatives for Further Study . . . . . . . . . . . . . . . . . . 2-85
2.3 .4.4.1 Refinernents to Alternative 4 and Alternative 6 ... 2-89
COMPONENTS OF THE ALTERNATNES CONSIDERED BUT ELIMINATED
FROM FURTHER CONSIDERATION IN THIS DSEIS ..................... 2-89
2.4.1 Non-Structural Components Eliminated As Part of Alternatives I, 2, 3, 4,

6, 8 and 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-89
2.4.1.1 Water Conservation Through Irrigation System Improvernent ... 2-90
2.4.1.2 Raising ofVallecito and McPhee Dams... . ...... ., . . .. .....2-90
2.4.1.3 Availability of Unused Water in McPhee Reservoir.. ., .......2-90
2.4.2 Structural Components Eliminated ................................ 2-91
2.4.2.1 Howardsville Dam Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-91

2.3.2.9.3

2.3.2.9.4

2.3.2.9.5

2.3.3.5
2.3.3.6

IV