DOE/EIS-0365; Draft Environmental Impact Statement for the Imperial-Mexicali 230-kV Transmission Lines (May 2004)
Table of Contents
Cover
Cover Sheet
Table of Contents
Notation
English/Metric and Metric/English Equivalents
Summary
Chapter 1: Introduction
Chapter 2: Alternatives
Section 2.2 Proposed Action: Grant One or Both Presidential Permits and Corresponding ROWs
Section 2.3 Alternative Technologies
Section 2.4 Mitigation Measures
Section 2.5 Comparison of Alternatives
Chapter 3: Affected Environment
Section 3.2 Water Resources
Section 3.3 Climate and Air Quality
Section 3.4 Biological Resources
Section 3.5 Cultural Resources
Section 3.6 Land Use
Section 3.7 Transportation
Section 3.8 Visual Resources
Section 3.9 Socioeconomics
Section 3.10 Minority and Low-Income Populations
Chapter 4: Environmental Consequences
Chapter 5: Cumulative Impacts
Chapter 6: Unavoidable Adverse Environmental Impacts
Chapter 7: Irreversible and Irretrievable Commitments or Resources
Chapter 8: Short-Term Use and Long-Term Productivity
Chapter 9: Applicable Environmental Laws, Regulations, Permits, and DOE Orders
Chapter 10: Agencies and Persons Contacted
Chapter 11: References
Chapter 12: List of Preparers
Chapter 13: Glossary
Chapter 14: Index
Appendix A - Court Orders
Appendix A - Court Orders Cont'
Appendix B - Scoping Summary Report for Imperial-Mexicali 230-kV Transmission Lines Environmental Impact Statement
Appendix C - Issues Tracking Matrix
Appendix D - Air Quality Monitoring Data in the United States and Mexico Border Region
Appendix E - Consultation Letters
Appendix F - Calculations in Support of Water Resources Analysis
Appendix G - Data in Support of Air Quality Analysis
Appendix H - Health Risk Assessment for Air Toxics
Appendix I - Contractor Disclosure Statements
Tables and Figures
Table S-1 Summary of Impacts for Proposed Action
Table 2.5-1 Summary of Impacts for Proposed Action
Table 3.2-1 Annual Mean Flows for the New River, 1980-2001
Table 3.2-3 Average Values for TSS, BOD, COD, and Phosphorus
Table 3.4-2 Federal-and State-Listed Threatened and Endangered Species
Table 3.10-1 Minority and Low-Income Population Characteristics in Imperial County
Figure S-1 Regional Setting for Imperial-Mexicali 230-kV Transmission Lines Projects
Figure S-2 La Rosita Power Complex: Electrical Distribution
Figure S-4 Alternative Transmission Line Routes
Figure S-5 General Engineering Features at the LRPC and TDM Power Plants
Figure S-7 Water Supple Cycle for LRPC and TDM Power Plants
Figure S-8 Dry Cooling Technology
Figure S-9 Wet-Dry Cooling Technology
Figure 1.1-1 Regional Setting for Imperial-Mexicali 230-kV Transmission Lines Projects
Figure 1.1-2 La Rosita Power Complex: Electrical Distribution
Figure 2.2-1 General Area Map Showing the Proposed Transmission Lines
Figure 2.2-2 Location of Existing and Proposed Transmission Lines
Figure 2.2-3 Project Plan - Segment A
Figure 2.2-4 Project Plan - Segment B
Figure 2.2-5 Project Plan - Segment C
Figure 2.2-6 Project Plan - Segment D
Figure 2.2-7 Suspension Tower
Figure 2.2-8 Suspension Monopole
Figure 2.2-9 Deflection Tower
Figure 2.2-10 Deflection Monopole
Figure 2.2-11 Dead-end Tower
Figure 2.2-12 Crossing Structure
Figure 2.2-13 Alternative Transmission Line Routes
Figure 2.2-14 General Engineering Features at the LRPC and TDM Power Plants
Figure 2.2-17 Water Supply Cycle for LRPC and TDM Power Plants
Figure 3.1-1 Physiographic Features of Imperial Valley Area
Figure 3.2-1 Major Fault Zones in the Salton Trough, Southern California
Figure 3.2-7 TSS Recorded at the Calexico Gage
Figure 3.2-8 BOD Measured at the Calexico Gage
Figure 3.2-9 COD Measured at the Calexico Gage
Figure 3.2-10 Yearly Averages for Water Quality at the Calexico Gage
Figure 3.2-11 Concentration of Total Phosphorus at the Calexico Gage
Figure 3.2-13 Areas Flooded during Creation of Contemporary Salton Sea
Figure 3.2-18 Total Salt Land in Inflow to the Salton Sea
Figure 3.2-19 Total Dissolved Solids in Inflow to the Salton Sea
Figure 3.2-21 FEMA 100-Year Floodplain of Pinto Wash
Figure 3.3-1 Annual Variation of Temperatures and Precipitation in Imperial County
Figure 3.3-2 Imperial, Imperial County: Annual Winds from 1993 through 2002
Figure 3.3-3 Imperial, Imperial County: Fall Winds from 1993 through 2002
Figure 3.3-4 Imperial, Imperial County: Winter Winds from 1993 through 2002
Figure 3.3-5 Imperial, Imperial County: Spring Winds from 1993 through 2002
Figure 3.3-6 Imperial, Imperial County: Summer Winds from 1993 through 2002
Figure 3.3-7 Mexicali Monitoring Status CBTIS, COBACH, ITM, UABC: Annual Winds
Figure 3.3-8 Mexicali Monitoring Status CBTIS, COBACH, ITM, UABC: Fall Winds
Figure 3.3-9 Mexicali Monitoring Status CBTIS, COBACH, ITM, UABC: Winter Winds
Figure 3.3-10 Mexicali Monitoring Status CBTIS, COBACH, ITM, UABC: Spring Winds
Figure 3.3-11 Mexicali Monitoring Status CBTIS, COBACH, ITM, UABC: Summer Winds
Figure 3.3-14 Carbon Monoxide Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-15 Nitrogen Dioxide Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-16 Ozone Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-17 Sulfur Dioxide Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-18 PM10 Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-19 Bar Graph of Carbon Monoxide Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-20 Bar Graph of Nitrogen Dioxide Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-21 Bar Graph of Ozone Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-22 Bar Graph of Sulfur Dioxide Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.3-23 Bar Graph of PM10 Annual Arithmetic Means for U. S. and Mexico Monitoring Stations
Figure 3.4-1 Biological Community Types in the Vicinity of the Proposed Transmission Line Routes
Figure 3.6-1 Land Use and Ownership Map
Figure 3.8-1 Distance Zone Map
Figure 3.10-1 Minority Population Concentration in Census Block Groups in Imperial County
Figure 3.10-2 Low-Income Population Concentration in Census Block Groups in Imperial County