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Prospect No. 3 Hydroelectric Project Ferc Project No. P-2337

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Prospect No. 3 Hydroelectric Project Ferc Project No. P-2337 PROSPECT NO. 3 HYDROELECTRIC PROJECT FERC PROJECT NO. P-2337 Final License Application for Major Project—Existing Dam Volume II Exhibit E—Environmental Exhibit December 2016 PROSPECT NO. 3 HYDROELECTRIC PROJECT FERC PROJECT NO. P-2337 Final License Application for Major Project—Existing Dam Volume I: Initial Statement and Exhibits A, B, C, D, F, G, and H* Volume II: Exhibit E Volume III: Exhibit E Appendices* Volume IV: Exhibit F Appendices (CEII)* (*Provided under separate cover) VOLUME II TABLE OF CONTENTS Contents TABLE OF CONTENTS ........................................................................................................... E-iii LIST OF FIGURES .................................................................................................................. E-vii LIST OF TABLES ................................................................................................................... E-viii ACRONYMS AND ABBREVIATIONS .................................................................................... E-x EXECUTIVE SUMMARY ...................................................................................................... E-xii EXHIBIT E —ENVIRONMENTAL EXHIBIT ......................................................................... E-1 E.1 DESCRIPTION OF THE ROGUE RIVER BASIN ......................................................... E-1 E.1.1 South Fork Rogue River ............................................................................................. E-4 E.1.2 Climate ....................................................................................................................... E-4 E.1.3 Major Land Uses and Economic Activities ................................................................ E-5 E.2 CUMULATIVE EFFECTS ............................................................................................... E-5 E.2.1 Resources Potentially Subject to Cumulative Effects ................................................ E-5 E.2.2 Geographic Scope of Analysis ................................................................................... E-5 E.2.3 Temporal Scope of Analysis ...................................................................................... E-6 E.3 APPLICABLE LAWS....................................................................................................... E-7 E.3.1 Section 401 of the Clean Water Act ........................................................................... E-7 E.3.2 Endangered Species Act (ESA) .................................................................................. E-7 E.3.3 Magnuson-Stevens Fishery Conservation and Management Act ............................... E-7 E.3.4 Coastal Zone Management Act (CZMA) ................................................................... E-8 E.3.5 National Historic Preservation Act (NHPA) .............................................................. E-8 E.3.6 Wild and Scenic Rivers and Wilderness Acts ............................................................ E-8 E.4 PROJECT FACILITIES AND OPERATION ................................................................... E-9 E.4.1 Facility Maps .............................................................................................................. E-9 E.4.2 Project Facility Configuration .................................................................................... E-9 E.4.3 Project Impoundments .............................................................................................. E-11 E.4.4 Project Turbines and Generators .............................................................................. E-12 E.4.5 Dependable Capacity and Average Annual Energy Production ............................... E-12 E.4.6 Project Operation ...................................................................................................... E-12 E.4.6.1 Current Project Operation.................................................................................. E-12 E.4.6.2 Project Safety..................................................................................................... E-14 Prospect No. 3 Hydroelectric Project (FERC No. P-2337) December 2016 Final License Application Page E-iii E.4.6.3 Existing Environmental Measures and Compliance History ............................. E-14 E.5 PROPOSED ACTION AND ALTERNATIVES ............................................................ E-18 E.5.1 Proposed Action ....................................................................................................... E-18 E.5.1.1 Proposed Project Facilities ................................................................................ E-18 E.5.1.2 Proposed Project Operation ............................................................................... E-19 E.5.1.3 Proposed Environmental Measures ................................................................... E-20 E.5.2 No-Action Alternative .............................................................................................. E-21 E.5.3 Federal Government Takeover ................................................................................. E-22 E.5.4 Non-power License .................................................................................................. E-22 E.5.5 Project Decommissioning ......................................................................................... E-22 E.6 ENVIRONMENTAL ANALYSIS .................................................................................. E-22 E.6.1 Geology and Soils..................................................................................................... E-23 E.6.1.1 Affected Environment ....................................................................................... E-23 E.6.1.2 Project Effects ................................................................................................... E-25 E.6.1.3 Proposed Environmental Measures ................................................................... E-27 E.6.1.4 Unavoidable Adverse Impacts ........................................................................... E-30 E.6.2 Water Resources ....................................................................................................... E-30 E.6.2.1 Affected Environment ....................................................................................... E-30 E.6.2.2 Project Effects ................................................................................................... E-39 E.6.2.3 Proposed Environmental Measures ................................................................... E-42 E.6.2.4 Unavoidable Adverse Impacts ........................................................................... E-43 E.6.2.5 Cumulative Effects ............................................................................................ E-43 E.6.3 Fisheries Resources .................................................................................................. E-44 E.6.3.1 Affected Environment ....................................................................................... E-44 E.6.3.2 Project Effects ................................................................................................... E-52 E.6.3.3 Proposed Environmental Measures ................................................................... E-74 E.6.3.4 Unavoidable Adverse Impacts ........................................................................... E-83 E.6.3.5 Cumulative Effects ............................................................................................ E-84 E.6.4 Wildlife Resources ................................................................................................... E-85 E.6.4.1 Affected Environment ....................................................................................... E-85 E.6.4.2 Project Effects ................................................................................................... E-91 E.6.4.3 Proposed Environmental Measures ................................................................... E-93 E.6.4.4 Unavoidable Adverse Impacts ........................................................................... E-94 E.6.4.5 Cumulative Effects ............................................................................................ E-94 Prospect No. 3 Hydroelectric Project (FERC No. P-2337) December 2016 Final License Application Page E-iv E.6.5 Botanical Resources ................................................................................................. E-95 E.6.5.1 Affected Environment ....................................................................................... E-95 E.6.5.2 Project Effects ................................................................................................. E-100 E.6.5.3 Proposed Environmental Measures ................................................................. E-102 E.6.5.4 Unavoidable Adverse Impacts ......................................................................... E-103 E.6.5.5 Cumulative Effects .......................................................................................... E-103 E.6.6 Wetland, Riparian, and Littoral Habitat Resources ................................................ E-104 E.6.6.1 Affected Environment ..................................................................................... E-104 E.6.6.2 Project Effects ................................................................................................. E-105 E.6.6.3 Proposed
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