Condit Dam Removal Sepa Supplemental Environmental Impact Statement
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Condit Dam Removal Final SEPA Supplemental Environmental Impact Statement (FSEIS) Ecology Publication # 07-06-012 March 23, 2007 CONDIT DAM REMOVAL SEPA SUPPLEMENTAL ENVIRONMENTAL IMPACT STATEMENT This report is available on the Department of Ecology Web site at: http://www.ecy.wa.gov/biblio/0706012.html For a CD or printed copy of this report contact: Joanne R. Wellner Department of Ecology 15 West Yakima Avenue, Suite 200 Yakima WA 98902 Phone (509) 575-2680 Refer to Publication number 07-06-012 If you need this publication in an alternate format, please contact Tim Schlender in Ecology’s Shorelands and Environmental Assistance Program at (360) 407-6096. Persons with hearing loss can call 711 for Washington Relay Service. Persons with a speech disability can call (877) 833-6341. THIS DOCUMENT WAS PRINTED ON RECYCLED PAPER March 23, 2007 Dear interested parties: The Washington State Department of Ecology (Ecology) has prepared and issued this State Environmental Policy Act (SEPA) Final Supplemental Environmental Impact Statement (FEIS) to address the proposal by PacifiCorp to remove the Condit Hydroelectric Project on the White Salmon River, a tributary of the Columbia River. The Final SEIS supplements the following National Environmental Policy Act (NEPA) documents: Condit Hydroelectric Project Final Environmental Impact Statement, FERC No. 2342-005, Washington (Federal Energy Regulatory Commission, October 1996); and Final Supplemental Final Environmental Impact Statement, Condit Hydroelectric Project, Washington, FERC Project No. 2342, (Federal Energy Regulatory Commission, June 2002). As part of the SEIS, Ecology is adopting these documents pursuant to provisions of WAC 197-11-610 and 630. The aforementioned documents identify and evaluate a range of reasonable alternatives to the proposal, identify probable significant impacts associated with the proposal and its alternatives, and address mitigation measures to be imposed by the Federal Energy Regulatory Commission. The NEPA documents were evaluated to verify, from the Department of Ecology’s perspective, whether a reasonable range of alternatives were considered and whether all probable significant adverse impacts associated with the proposal were adequately identified and assessed. Based on that evaluation, it was determined that, while the NEPA documents form a substantial basis for environmental review of the project and largely meet Ecology’s environmental review standards, some supplemental evaluation of probable significant adverse impacts would be needed to satisfy the requirements of SEPA. Among the issues associated with the proposal that are addressed in the Final SEIS are the potential for sedimentation and turbidity in the White Salmon and Columbia Rivers; effects of dam removal activities on fish, including those listed under the Endangered Species Act; removal of potential barriers to fish passage; loss of wetlands; impacts to surrounding land use; noise, air quality, and aesthetic effects; provisions for public safety; and impacts to public services and utilities. Sincerely yours, Derek I. Sandison Central Regional Director Condit Dam Hydroelectric Project Final Supplemental EIS Fact Sheet Project Title Condit Dam Removal Proponent PacifiCorp 825 NE Multnomah St., Suite 1500 Portland, Oregon 97232-2135 Proposed Action PacifiCorp proposes to remove the Condit Hydroelectric Project on the White Salmon River in accordance with the Condit Hydroelectric Project Settlement Agreement, as amended in 2005. Removal of the project would enable the river and watershed to return to the conditions of a free- flowing river. Originally completed in 1913, Condit Dam has since accumulated sediment and blocked fish passage. Removing the dam is expected to provide access to as much as 33 miles of river and tributary habitat for anadromous steelhead and salmon and restore connectivity to foraging, spawning, rearing, and overwintering habitat for bull trout in the lower White Salmon River. The removal also would restore natural bed load movement processes in the river. Combined with a stable and natural flow regime, dam removal would result in increased salmonid (steelhead, salmon, and bull trout) production potential. The proposed action includes draining the reservoir through a tunnel that would be constructed through the dam, removing the dam, removing the wood stave pipeline, the surge tower and the two penstocks, and filling in the tail race at the power house. Concrete from the dam and wood from the pipeline would be disposed of and/or temporarily stored for recycling on property near the dam. Previous NEPA EISs were prepared by the FERC, but were found by Ecology not to adequately cover all SEPA issues. This Final Supplemental Environmental Impact Statement (Final SEIS) is intended to address the environmental impacts of removal of the Condit Dam and is being prepared pursuant to the State Environmental Policy Act (SEPA). This EIS evaluates one alternative, the Proposed Action to remove the Condit Dam and associated facilities. Lead Agency Information Responsible Official and Contact: Derek Sandison and Joanne Wellner Washington State Department of Ecology Central Regional Office 15 W Yakima Ave, Ste 200 Yakima WA 98902-3452 (509) 575-2680 i Condit Dam Hydroelectric Project Final Supplemental EIS Permits, Certifications, and Licenses, and Other Required Actions or Approvals Clean Water Act Section 404 permit from the U.S. Army Corps of Engineers Clean Water Act Section 401 Water Quality Certification from the Department of Ecology Construction Stormwater General NPDES permit Hydraulic Project Approval from the Department of Fish and Wildlife (unless preempted by the Federal Power Act) It was not known at the time of publication of this Final SEIS if FERC or the courts will determine that the Federal Power Act would preempt state and local permits as PacifiCorp has asserted. If the Federal Power Act is determined not to preempt local authority, then permits from Klickitat County and/or Skamania County may be required. Date of Issue of Draft SEIS September 30, 2005 Date of Issue of Final SEIS March 23, 2007 Document Availability Information regarding the availability of this Final SEIS will appear in the Skamania County Pioneer and the White Salmon Enterprise. The Final SEIS can be viewed on line at http://www.ecy.wa.gov/biblio/0706012.html. Hard copies of the Final SEIS can be obtained at a cost of $40 per copy. The FINAL SEIS is also available on CD at no charge. Hard copies or CDs can be obtained by contacting Joanne Wellner. Please specify the desired format. Persons with disabilities may request this information be prepared and supplied in alternative formats. Copies of the Final SEIS can be reviewed at the Department of Ecology’s Central Regional Office, 15 W Yakima Avenue, Ste. 200, Yakima, Washington or at the following libraries: White Salmon Valley Community Library #5 Town & Country Square White Salmon, WA 98672 Goldendale Community Library 131 West Burgen Goldendale, WA 98620 ii Condit Dam Hydroelectric Project Final Supplemental EIS Location of Background Material The Condit Hydroelectric Project Final Environmental Impact Statement, FERC No. 2342-005, Washington (Federal Energy Regulatory Commission, October 1996); and Final Supplemental Final Environmental Impact Statement, Condit Hydroelectric Project, Washington, FERC Project No. 2342, (Federal Energy Regulatory Commission, June 2002), both adopted as part of this SEIS, were both distributed to a broad range of tribes, agencies, and the public by the Federal Energy Regulatory Commission. Copies of these documents are on file at the Department of Ecology’s Central Regional Office, 15 W Yakima Avenue, Ste. 200, Yakima, Washington. iii Condit Dam Hydroelectric Project Final Supplemental EIS Table of Contents Fact Sheet........................................................................................................................ i Acronyms and Abbreviations...........................................................................................ix Glossary ..........................................................................................................................xi 1.0 SUMMARY ........................................................................................................1-1 1.1 INTRODUCTION ....................................................................................1-1 1.2 PROJECT BACKGROUND ....................................................................1-1 1.3 ADOPTION OF NATIONAL ENVIRONMENTAL POLICY ACT DOCUMENTS.........................................................................................1-2 1.4 FOCUS OF SEPA SEIS..........................................................................1-3 1.5 DESCRIPTION OF PROPOSED ACTION..............................................1-3 1.6 IMPACTS AND MITIGATION MEASURES ............................................1-8 2.0 PROJECT BACKGROUND ............................................................................... 2-1 2.1 INTRODUCTION .................................................................................... 2-1 2.2 FERC RELICENSING PROCESS SINCE 1991 ..................................... 2-1 2.3 NEED FOR STATE ENVIRONMENTAL REVIEW.................................. 2-2 2.4 SCOPE OF THIS SEIS........................................................................... 2-5 3.0 PROPOSED ACTION........................................................................................ 3-1 3.1 PRE-DAM