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DOE/EIS-0336; Tucson Electric Power Company Sahuarita-Nogales Transmission Line Draft Environmental Impact Statement
(July 2003)

Summary

Summary Cover
Cover Sheet
Table of Contents
List of Acronyms and Abbreviations
Chemicals and Unit Abbreviations
Conversion Chart
Background
Proposed Action and Alternatives
Applicant's Purpose and Need
Federal Agencies' Proposed and Need and Authorizing Actions
Public Participation
Comparison of Potential Environmental Impacts Among Alternatives
Mitigation

Volume 1

Cover
Cover Sheet
Table of Contents
Chapter 1.1: Introduction and Background
Chapter 1.2: Purpose and Need
Chapter 1.3: Public Participation
Chapter 2.1: Alternatives
Chapter 2.2: Construction and Mitigation Activities Common to All Alternatives
Chapter 2.3: Comparisons of Alternatives
Chapter 3.1: Land Use and Recreation
Chapter 3.2: Visual Resources
Chapter 3.3: Biological Resources
Chapter 3.4: Cultural Resources
Chapter 3.5: Socioeconomics
Chapter 3.6: Geology and Soils
Chapter 3.7: Water Resources
Chapter 3.8: Air Quality
Chapter 3.9: Noise
Chapter 3.10: Human Health and Environment
Chapter 3.11: Infrastructure
Chapter 3.12: Transportation
Chapter 3.13: Minority and Low-Income Populations
Chapter 4.1: Land Use and Recreation
Chapter 4.2: Visual Resources
Chapter 4.3: Biological Resources
Chapter 4.4: Cultural Resources
Chapter 4.5: Socioeconomics
Chapter 4.6: Geology and Soils
Chapter 4.7: Water Resources
Chapter 4.8: Air Quality
Chapter 4.9: Noise
Chapter 4.10: Human Health and Environment
Chapter 4.11: Infrastructure
Chapter 4.12: Transportation
Chapter 4.13: Environmental Justice
Chapter 5: Cumulative Impacts
Chapter 6: Unavoidable Adverse Environmental Impacts
Chapter 7: Irreversible and Irretrievable Commitments of Resources
Chapter 8: Short-Term Use and Long-Term Productivity
Chapter 9: Applicable Environmental Regulations, Permits, and DOE Orders
Chapter 10: List of Agencies and Persons Contacted
Chapter 11: References
Chapter 12: List of Acronyms & Abbreviations, Unit Conversions. Glossary
Chapter 13: List of Preparers
Chapter 14: Index

Simulations, Tables and Figures

Visual Simulation 1: Western Corridor from Upper Thumb Picnic Area at Pena Blanca Lake Area
Visual Simulation 2: Western Corridor from Ruby Road west of the Calabasas Group Area
Visual Simulation 3: Western Corridor along Ruby Road north of Pajarita Wilderness
Visual Simulation 4: Western Corridor and Castle Rock and Ruby Road
Visual Simulation 5: Western Corridor Crossing Ruby Road
Visual Simulation 6: Western Corridor from Ruby Road west of the Tumacacori Mountains
Visual Simulation 7: Western Corridor from Ruby Road west of the Tumacacori Mountains
Visual Simulation 8: Example of Terrain and vegetation Shielding Along the Western Corridor
Visual Simulation 9: All Three Corridors on BLM Land
Visual Simulation 10: Western and Crossover Corridors Crossing Arivaca Road
Visual Simulation 11: Central Corridor Crossing of Ruby Road
Visual Simulation 12: Central Corridor Crossing of Ruby Road
Visual Simulation 13: Central Corridor Crossing from Peck Canyon at I-19
Visual Simulation 14: Central Corridor Crossing Arivaca Road
Visual Simulation 15: Central Corridor Northwest of Tubac
Visual Simulation 16: Example of Partial Terrain Shielding Along Central Corridor
Visual Simulation 17: Central Corridor Near Piedra Drive in Tubac

Table 2.3-1 Summary of Comparison of Potential Environmental Effects of Alternatives

Figure 1.1-1 Monopole Transmission Line Structure Drawing and Photo
Figure 1.1-2 Lattice Tower Transmission Line Structure Drawing and Phono
Figure 1.1-3 Proposed Project Region Map
Figure 1.1-4 Proposed Project Study Corridor
Figure 2.1-2 Close-up of Alternative Study Corridors Near Amado
Figure 2.1-3 Close-up of Alternative Study Corridors Near Nogales
Figure 2.1-4 TEP Corridor Alternatives, Alternatives Eliminated From Further Analysis, and PNM Corridor Alternatives
Figure 2.2-1 Proposed Construction Equipment
Figure 3.1-1 Specially Designated Area on the Coronado National Forest
Figure 3.1-2 Recreation Opportunity Spectrum Classes on the Coronado National Forest
Figure 3.2-2 Scenic Attractiveness Classes for Tumacacori EMA
Figure 3.2-3 Travelways of Concern within and near Tumacacori EMA
Figure 3.2-4 Scenic Classes for Tumacacori EMA
Figure 3.2-5 Coronado National Forest Existing Scenic Integrity
Figure 3.3-1 Biotic Communities in the Proposed Project Area
Figure 3.6-1 Geology of the Proposed Project Area
Figure 3.6-2 Geology of the Proposed Project Area on the Coronado National Forest
Figure 3.6-5 Soil Associations in the Proposed Project Area
Figure 3.7-1 Surface Waters Outside the Coronado National Forest
Figure 3.7-2 Surface Waters and Watersheds Within the Coronado National Forest
Figure 3.7-3 100-year Floodplain and Associated Surface Waters Crossed by the Corridor Alternatives
Figure 3.12-1 Roads Within the Tumacacori EMA
Figure 3.13-1 Meaningfully Greater Minority Populations
Figure 3.13-2 Low-Income Populations
Figure 3.13-3 Detail of Block Group Boundaries for Populated Areas
Figure 4.2-1 Western Corridor on the Coronado National Forest Visibility and Simulation Key Map
Figure 4.2-2 Predicted Scenic Integrity of the Western Corridor
Figure 4.2-3 Western and Crossover Corridors Outside the Coronado National Forest Visibility and Simulation Key Map
Figure 4.2-4 Visual Sensitivity Map
Figure 4.2-5 Central Corridor on the Coronado National Forest visibility and Simulation Key Map
Figure 4.2-6 Predicted Scenic Integrity of the Central and Crossover Corridors
Figure 4.2-7 Central Corridor Outside the Coronado National Forrest Visibility and Simulation Key Map
Figure 4.2-8 Crossover Corridor the Coronado National Forest Visibility and Simulation Key Map

Appendices

Appendix A - Consultation Letters
Appendix A - Consultation Letters Cont'
Appendix B - Electric and Magnetic Fields Background Information
Appendix C - Floodplain/Wetlands Assessment
Appendix D - Harris Environment Group, Inc. Draft Biological Assessment TEP Proposed Sahuarita-Nogales Transmission Line Project Western Corridor
Appendix E - Harris Environment Group, Inc. Draft Biological Assessment TEP Proposed Sahuarita-Nogales Transmission Line Project Central Corridor
Appendix F - Harris Environment Group, Inc. Draft Biological Assessment TEP Proposed Sahuarita-Nogales Transmission Line Project Crossover Corridor
Appendix G - NEPA Disclosure Statement for Preparation of the Tucson Electric Power Company Sahuarita-Nogales Transmission Line Draft Environmental Impact Statement

Figures

Appendix C Figure 1 - 100 Year Floodplains and Associated Surface Waters Crossed by the Corridor Alternative
Appendix C Figure 2 - Floodplain Detail All Corridors
Appendix C Figure 3 - Detailed View of Corridor Alternative Relative to 100-year Floodplain Western
& Crossover Corridors
Appendix C Figure 4 - Detailed View of Corridor Alternative Relative to 100-year Floodplain Central Corridors
Appendix C Figure 5 - Detailed View of Corridor Alternative Relative to 100-year Floodplain All Corridors

 
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