Savage Rapids Dam Grants Pass Project, Oregon
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Draft Environmental Assessment Fish Passage Improvements Savage Rapids Dam Grants Pass Project, Oregon U.S. Department of the Interior Bureau of Reclamation Pacific Northwest Region August 2005 U.S. DEPARTMENT OF THE INTERIOR The mission of the Department of the Interior is to protect and provide access to our Nation’s natural and cultural heritage and honor our trust responsibilities to Indian tribes and our commitments to island communities. MISSION OF THE BUREAU OF RECLAMATION The mission of the Bureau of Reclamation is to manage, develop, and protect water and related resources in an environmentally and economically sound manner in the interest of the American public. Acronyms and Abbreviations BMP best management practices CAR Coordination Act Report cfs cubic feet per second Corps U.S. Army Corps of Engineers CWA Clean Water Act EA Environmental Assessment EIS Environmental Impact Statement EFH Essential fish habitat ESA Endangered Species Act ESU Evolutionarily significant unit fps feet per second GPID Grants Pass Irrigation District LAET Lowest apparent effect threshold MSA Magnuson-Stevens Fishery Conservation and Management Act NHPA National Historic Preservation Act NOAA Fisheries National Oceanic and Atmospheric Administration (formerly NMFS – National Marine Fisheries Service) ODEQ Oregon Department of Environmental Quality ODFW Oregon Department of Fish and Wildlife ODSL Oregon Department of State Lands PR/FES Planning Report/Final Environmental Statement Reclamation U.S. Bureau of Reclamation RM river mile ROD Record of Decision SHPO State Historic Preservation Officer SONCC Southern Oregon/Northern California Coast SVOC Semi-volatile organic compounds TMDLs Total maximum daily loads USFS U.S. Forest Service USFWS U.S. Fish and Wildlife Service VOC Volatile organic compounds TABLE OF CONTENTS Acronyms and Abbreviations Table of Contents ...................................................................................................................... i Chapter 1 Purpose and Need ............................................................................................ 1 1.1 Purpose and Need for Action .................................................................................. 1 1.2 Background ............................................................................................................. 2 1.3 Decisions Required ................................................................................................. 2 1.4 Existing Project and Facilities Description............................................................. 2 1.5 Issues and Concerns ................................................................................................ 3 Chapter 2 Descriptions of Alternatives ......................................................................... 7 2.1 Summary of Changes .............................................................................................. 7 2.2 Alternative A – 1995 PR/FES Preferred Alternative ............................................ 12 2.3 Alternative B – 2005 Preferred Alternative .......................................................... 13 2.4 Alternatives Eliminated from Further Study......................................................... 15 Chapter 3 Affected Environment and Environmental Consequences.............. 19 3.1 Introduction........................................................................................................... 19 3.2 Water Quality........................................................................................................ 19 3.2.1 Affected Environment............................................................................... 19 3.2.2 Environmental Consequences................................................................... 23 3.3 Wild and Scenic Rivers......................................................................................... 26 3.3.1 Affected Environment............................................................................... 26 3.3.2 Environmental Consequences................................................................... 27 3.4 Land Use............................................................................................................... 27 3.4.1 Affected Environment............................................................................... 27 3.4.2 Environmental Consequences................................................................... 27 3.5 Fish........................................................................................................................ 28 3.5.1 Anadromous Fish...................................................................................... 28 3.5.2 Resident Fish.............................................................................................35 3.6 Wildlife ................................................................................................................. 39 3.7 Vegetation ............................................................................................................. 40 August 05 – Public Review Draft i Table of Contents 3.7.1 Affected Environment............................................................................... 40 3.7.2 Environmental Consequences................................................................... 40 3.8 Endangered Species Act Threatened and Endangered Species............................. 41 3.8.1 Bald Eagle................................................................................................. 41 3.8.2 Northern Spotted Owl............................................................................... 41 3.8.3 Southern Oregon/Northern California Coast Coho Salmon ..................... 41 3.8.4 Gentner Mission-bells............................................................................... 46 3.8.5 Cook’s Lomatium..................................................................................... 47 3.9 Candidate Species ................................................................................................. 47 3.9.1 Pacific Fisher............................................................................................ 47 3.9.2 Streak Horned Lark................................................................................... 48 3.10 Recreation ............................................................................................................. 48 3.10.1 Affected Environment............................................................................... 48 3.10.2 Environmental Consequences................................................................... 49 3.11 Aesthetics .............................................................................................................. 49 3.11.1 Affected Environment............................................................................... 49 3.11.2 Environmental Consequences................................................................... 49 3.12 Historic Properties................................................................................................. 50 3.12.1 Affected Environment............................................................................... 50 3.12.2 Environmental Consequences................................................................... 51 3.13 Indian Sacred Sites................................................................................................ 52 3.13.1 Affected Environment............................................................................... 52 3.13.2 Environmental Consequences................................................................... 52 3.14 Indian Trust Assets................................................................................................ 53 3.14.1 Affected Environment............................................................................... 53 3.14.2 Environmental Consequences................................................................... 53 3.15 Social Well Being ................................................................................................. 53 3.15.1 Affected Environment............................................................................... 53 3.15.2 Environmental Consequences................................................................... 53 3.16 Economics............................................................................................................. 54 3.16.1 Affected Environment............................................................................... 54 3.16.2 Environmental Consequences................................................................... 54 3.17 Air Quality and Noise ........................................................................................... 54 3.17.1 Affected Environment............................................................................... 54 3.17.2 Environmental Consequences................................................................... 55 ii Public Review Draft - August 05 Table of Contents 3.18 Environmental Justice........................................................................................... 55 3.18.1 Affected Environment............................................................................... 55 3.18.2 Environmental Consequences................................................................... 55 3.19 Unavoidable Adverse Impacts .............................................................................. 56 3.19.1 Affected Environment..............................................................................