Mcnary-John Day Transmission Line Project
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McNary-John Day Transmission Line Project Abbreviated Final Environmental Impact Statement August 2002 DOE-EIS-0332 McNary-John Day Transmission Line Project Final Environmental Impact Statement (EIS) (DOE/EIS-0332) Responsible Agency: Bonneville Power Administration (Bonneville), U.S. Department of Energy (DOE) Cooperating Agencies: U.S. Department of Interior: U.S. Fish and Wildlife Service, Bureau of Land Management, and Bureau of Indian Affairs. Department of Army: Corps of Engineers. States Involved: Oregon and Washington Abstract: Bonneville is proposing to construct, operate, and maintain a 79-mile-long 500-kilovolt- transmission line in Benton and Klickitat Counties, Washington, and Umatilla and Sherman Counties, Oregon. The new line would start at Bonneville’s McNary Substation in Oregon and would cross the Columbia River just north of the substation into Washington. The line would then proceed west for about 70 miles along the Columbia River. At the John Day Dam, the line would again cross the Columbia River into Oregon and terminate at Bonneville’s John Day Substation. The new line would parallel existing transmission lines for the entire length; mostly within existing available right-of-way. Presently, the existing transmission lines in the area are operating at capacity. These lines help move power from the east side of the Cascades to the west side, where there is a high need for electricity (cities along the I-5 corridor). Because the Northwest has only recently recovered from a shortfall in electric energy supply and a volatile wholesale power market in which prices reached record highs, there are many new proposals for facilities to generate new power. Some of these facilities are in the vicinity of the McNary-John Day project; the proposed line would help insure that existing and newly generated power could move through the system. Bonneville is also considering the No Action Alternative and several short-line routing alternatives. The short routing alternatives include three half-mile-long routes for getting from the McNary Substation to the Columbia River crossing; three two-mile-long routes where the Hanford-John Day transmission line joins the existing corridor; two 1,000-foot-long routes at corridor mile 32; and two 500-foot-long routes at corridor mile 35. This abbreviated final EIS consists of an introduction to the document, changes to the draft EIS, copies of all the comments received on the draft EIS, and Bonneville’s written responses to the comments. The final EIS should be used as a companion document to the draft EIS (dated February 2002), which contains the full text of the affected environment, environmental analysis, and appendices. Bonneville expects to issue a Record of Decision on the proposed project in October 2002. To receive additional copies of the Final EIS and/or Draft EIS: Call 1-800-622-4520; record your name, address, and which documents you would like; Access our web site at http://www.efw.bpa.gov, click on environmental planning/analysis, Active Projects; or Write to: Bonneville Power Administration Communications Office - KC-7 P.O. Box 12999 Portland OR 97212 For more information about the EIS please contact: Stacy Mason Bonneville Power Administration P.O. Box 3621 – KEC-7 Portland OR 97208-3621 (503) 230-5455 [email protected] For information on DOE National Environmental Policy Act (NEPA) activities, please contact: Carol Borgstrom, Director, Office of NEPA Policy and Compliance, EH-42, U.S. Department of Energy, 1000 Independence Avenue SW, Washington D.C. 20585, 1-800-472-2756; or visit the DOE NEPA Web at www.eh.doe.gov/nepa. Table of Contents Table of Contents CHAPTER 1 INTRODUCTION............................................................................................1-1 SUMMARY OF PROPOSED ACTION ...................................................................................1-1 SUMMARY OF ALTERNATIVES...........................................................................................1-2 LEAD AND COOPERATING AGENCIES ...............................................................................1-3 DRAFT EIS COMMENT PERIOD ........................................................................................1-3 KEY CHANGES TO THE DRAFT EIS...................................................................................1-4 CHAPTER 2 CHANGES TO DRAFT EIS TEXT ...............................................................2-1 SUMMARY.........................................................................................................................2-1 Purpose and Need for Action..................................................................................2-1 Affected Environment, Environmental Impacts, and Mitigation............................2-2 PURPOSE OF AND NEED FOR ACTION (CHAPTER 1)........................................................2-7 Need for Action.........................................................................................................2-7 Other Projects or Documents Related....................................................................2-8 PROPOSED ACTION AND ALTERNATIVES (CHAPTER 2)....................................................2-9 Existing Corridor.......................................................................................................2-9 New Easements .......................................................................................................2-9 AFFECTED ENVIRONMENT, ENVIRONMENTAL CONSEQUENCES, AND MITIGATION (CHAPTER 3)............................................................................................................2-12 Land Use and Recreation......................................................................................2-12 Geology, Soils, and Seismicity..............................................................................2-14 Streams, Rivers, and Fish.....................................................................................2-15 Wetlands and Groundwater...................................................................................2-19 Vegetation...............................................................................................................2-20 Wildlife.....................................................................................................................2-24 Cultural Resources.................................................................................................2-26 Public Health and Safety .......................................................................................2-30 CONSULTATION, REVIEW, AND PERMIT REQUIREMENTS (CHAPTER 4).........................2-31 REFERENCES (CHAPTER 5) ...........................................................................................2-33 APPENDICES...................................................................................................................2-33 CHAPTER 3 CHANGES TO THE DRAFT EIS TABLES .................................................3-1 CHAPTER 4 RESPONSES TO COMMENTS ...................................................................4-1 PURPOSE & NEED (CHAPTER 1)......................................................................................4-2 Need for Action.........................................................................................................4-2 Decisions to be Supported by the EIS .............................................................4-8 Public Involvement.............................................................................................4-9 Other Projects ..................................................................................................4-10 PROPOSED ACTION AND ALTERNATIVES (CHAPTER 2)..................................................4-11 Location ............................................................................................................4-11 Existing Corridor (ROW)..................................................................................4-11 Towers ..............................................................................................................4-12 BPA McNary-John Day Transmission Project i Abbreviated Final EIS August 2002 Conductors .......................................................................................................4-13 Access Roads ..................................................................................................4-13 Staging Areas...................................................................................................4-14 Substation Work...............................................................................................4-14 Line Planning and Construction......................................................................4-14 Construction Schedule ....................................................................................4-15 Cost...................................................................................................................4-16 Hanford-John Day Alternative.........................................................................4-16 Corridor Mile 32-35 Alternatives (Tribal) ........................................................4-18 No Action ..........................................................................................................4-19 Alternatives Eliminated....................................................................................4-20 Table S-2: Summary of Impacts .....................................................................4-22