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Environmental Assessment Responsible Official: Michael Williams Forest Supervisor 215 Melody Lane Wenatchee, Washington 98801 For Information Contact: Michael Liu District Ranger 24 West Chewuch Road Winthrop, Washington 98862 509-996-4000 Blackpine Meadows MISSION RESTORATION PROJECT Final Environmental Assessment The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or part of an individual’s income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410, or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer. MISSION RESTORATION FINAL ENVIRONMENTAL ASSESSMENT OKANOGAN-WENATCHEE NATIONAL FOREST – METHOW VALLEY RANGER DISTRICT I MARCH 2018 Table of Contents Table of Contents ........................................................................................................................ ii List of Figures ......................................................................................................................... iii Chapter 1: Purpose and Need .................................................................................................... 1 1.1 Introduction ....................................................................................................................... 1 1.2 Project Area Location ....................................................................................................... 1 1.3 Purpose and Need for Action ............................................................................................ 4 1.4 Management Direction and Guidance Pertinent to the Mission Assessment Area ............ 6 1.5 Consultation and Public Involvement ...............................................................................12 1.6 Issues ...........................................................................................................................14 Chapter 2: Alternative Description .............................................................................................19 2.1 Alternatives Considered but Eliminated from Detailed Study ...........................................19 2.2 Alternatives Developed ....................................................................................................21 2.3 Forest Plan Amendment ..................................................................................................24 2.4 Design Criterion, Mitigation Measures, and Monitoring ....................................................30 2.5 Comparison of Alternatives ..............................................................................................30 Chapter 3: Existing Condition and Environmental Consequences .............................................41 3.1 Introduction ......................................................................................................................41 3.2 Impact Terms Defined .....................................................................................................43 3.3 Water Resources .............................................................................................................44 3.4 Soils ................................................................................................................................86 3.5 Vegetation .....................................................................................................................101 3.6 Fire/Fuels ......................................................................................................................137 3.7 Wildlife ...........................................................................................................................177 3.8 Transportation ...............................................................................................................231 3.9 Botany ...........................................................................................................................242 3.10 Range ..........................................................................................................................256 3.11 Invasive Species ..........................................................................................................277 3.12 Recreation and Scenic Resources ...............................................................................296 3.13 Air Quality ....................................................................................................................307 3.14 Economics ...................................................................................................................318 3.15 Other Required Disclosures .........................................................................................323 MISSION RESTORATION FINAL ENVIRONMENTAL ASSESSMENT OKANOGAN-WENATCHEE NATIONAL FOREST – METHOW VALLEY RANGER DISTRICT II MARCH 2018 3.16 Substantive Provisions Affected by Proposed Amendment ..........................................328 Chapter 4: List of Agencies and Persons Consulted ...............................................................333 4.1 Agencies........................................................................................................................333 4.2 Tribes and Local Government ........................................................................................333 4.3 Individuals that Commented ..........................................................................................333 Appendix A: Proposed Thinning and Prescribed Fire Treatments ...........................................337 Appendix B: Transportation Definitions and Proposed Changes .............................................359 Appendix C: Proposed Soil, Road, Stream, and Beaver Habitat Treatments ........................... 371 Appendix D: Design Features, Best Management Practices, Mitigation, and Monitoring ......... 374 Appendix E: Literature Cited ...................................................................................................408 Appendix F: Project Maps .......................................................................................................433 Appendix G: Regulatory Framework .......................................................................................448 Appendix H: Acronyms & Glossary ........................................................................................465 Acronyms ............................................................................................................................465 Glossary ..............................................................................................................................467 List of Figures Figure 1. Mission Restoration Project Vicinity and Sub-Watersheds Map ........................................ 3 Figure 2. Forest Plan Management Area Allocations in Project Area .............................................. 6 Figure 3. NWFP Management Area Allocations within the Project Area .......................................... 7 Figure 4. Project Forest Plan and NWFP Management Areas and Sawtooth IRA ........................... 9 Figure 5. Mission Restoration Project Issues ................................................................................ 15 Figure 6. Alternatives 2 and 3 Proposed Treatments..................................................................... 22 Figure 7. Alternative 2 Proposed Transportation Changes ............................................................ 24 Figure 8. Alternative 3 Proposed Transportation Changes ............................................................ 24 Figure 9. Deer Winter Range Cover Guidance .............................................................................. 25 Figure 10. Proposed thinning treatments in deer winter range cover. ............. Error! Bookmark not defined. Figure 11. Comparison of Alternatives by Resource Indicator ....................................................... 31 Figure 12. Water resource elements, indicators, and measures. ................................................... 44 Figure 13. Watershed hierarchy of the Mission Project area. ........................................................ 45 Figure 14. Ranking of physical variables ....................................................................................... 46 Figure 15. Project watersheds by 10th and 12th Field HUC .......................................................... 51 Figure 16. Project area fish species by listing designation ............................................................ 53 Figure 17. Fish distribution in project area streams and designated critical habitat (CH) ............... 53 Figure 18. Pebble count data in project area ................................................................................. 54 Figure 19. Water resource indicators for project area. ..................................................................
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