Environmental Assessment of the -Final- Forest-Wide Hazard Tree Removal and Fuels Reduction Project
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United States Department of Environmental Agriculture Forest Service Assessment May 2010 Forest-wide Hazard Tree Removal and Fuels Reduction Project for the Arapaho and Roosevelt National Forests Hazard trees along the shoreline of Lake Granby in the Arapaho and Roosevelt National Forests Prepared By: JG Management Systems, Inc. For Information Contact: Dyce Gayton 336 Main Street, Suite 207 2150 Centre Avenue, Building E Grand Junction, CO 81501 Fort Collins, CO 80526-8119 970-254-1354 970-295-6600 [email protected] Environmental Assessment of the -Final- Forest-Wide Hazard Tree Removal and Fuels Reduction Project 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 a 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. –Final – Environmental Assessment of the Forest-Wide Hazard Tree Removal and Fuels Reduction Project Environmental Assessment Organization This Environmental Assessment (EA) addresses the Proposed Project determined by the United States Forest Service (USFS), and the Arapaho and Roosevelt National Forests, and Pawnee National Grassland necessary to implement hazard tree removal activities on its two national forests, the Arapaho and Roosevelt National Forests (ARNF), in central Colorado. The EA is written pursuant to the National Environmental Policy Act of 1969, as amended (NEPA, 42 USC §4321), Council on Environmental Quality regulations (40 CFR Parts 1500-1508), and 36 Code of Federal Regulation [CFR] 218 and 220. The EA is organized in the following fashion: Section 1.0 – Project Overview summarizes the purpose of and need for the Proposed Project, provides relevant background information, and describes the scope of the EA. Section 2.0 – Alternatives describes the No Action and the Proposed Action Alternatives. Section 3.0 – Affected Environment and Environmental Consequences identifies potential environmental, cultural and socioeconomic effects of implementing the No Action Alternative and the Proposed Action Alternative. Section 4.0 – Consultation and Coordination provides a listing of agencies, organizations, and personnel that were involved in the Proposed Project. Section 5.0 – References provides bibliographical information for cited sources. ____________________________________________________________________________________________________________ Page i Environmental Assessment of the -Final- Forest-Wide Hazard Tree Removal and Fuels Reduction Project (THIS PAGE HAS BEEN LEFT BLANK INTENTIONALLY) ____________________________________________________________________________________________________________ Page ii –Final – Environmental Assessment of the Forest-Wide Hazard Tree Removal and Fuels Reduction Project Table of Contents Environmental Assessment (listed by page number) TABLE OF CONTENTS ……………….………………………………………………... iii Index of Figures …………………………………………………………………………… iv Index of Tables ……………………………………………………………………………. iv Abbreviations and Acronyms ……………………………………………………………. v Glossary …………………………………………………………………………………… vii 1.0 OVERVIEW……………….…………………………………………………………. 1 1.1 Purpose and Need for the Proposed Project ……………………………………….…….. 1 1.2 Summary of the Proposed Project …..………………………………………………...... 1 1.3 Authority ……………..………………………………………………………………. 3 1.4 Public Involvement ……………………..……………………………...……………… 3 2.0 ALTERNATIVES ……………………………………………………………………. 11 2.1 Alternative 1 - No Action ………………………………………………………………. 11 2.2 Alternative 2 - Proposed Action .………...……………………………………………… 11 2.3 Comparison of Alternatives ….……………………………………………………….… 21 2.4 Land and Resource Management Plan Project Guidance …………………………………. 25 3.0 AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES .. 27 3.1 Recreation …………………………………………………………………………….. 27 3.2 Hydrology …………………………………………………………………………….. 37 3.3 Fisheries and Aquatic Habitat …………….………………….…………………………. 42 3.4 Botany …………………………………………………………………………...…… 48 3.5 Forested Vegetation and Old Growth Stands.…………………………………………..... 62 3.6 Fire, Fuels and Air Quality …………………………………………………...………… 69 3.7 Heritage Resources ……………………………………………………..……………… 75 3.8 Engineering and Roads ………………………………………………………………… 79 3.9 Lands and Special Uses ………………………………………………………………… 82 3.10 Scenery Resources …………...……………………...……………………………….. 87 3.11 Soils and Geology ……...……………………………………………………………... 91 3.12 Wildlife ………………………...……………………………………………………. 96 3.13 Socioeconomics ………………………………….…………………………………… 104 3.14 Overall Cumulative Effects ………………..…………………………………………... 107 3.15 Unavoidable Adverse Effects ………………………………………………………….. 110 3.16 Irreversible and Irretrievable Commitment of Resources ……………………………….. 110 4.0 CONSULTATION AND COORDINATION ………………………………………. 111 5.0 REFERENCES CITED ……………………………………………………………… 115 ____________________________________________________________________________________________________________ Page iii Environmental Assessment of the -Final- Forest-Wide Hazard Tree Removal and Fuels Reduction Project Index of Figures Figure 1-1 Geographic Distribution of the ARNF Proposed Project Area 2 Figure 3-1 Recreational Use in the Arapaho and Roosevelt National Forests 28 Figure 3-2 Fuel Profile Hazard Associated with MPB Mortality 70 Index of Tables Table 2.2-1 Proposed Project Acreage 11 Table 2.3-1 Quantity of the Total Area Potentially Affected by the Proposed Project 21 Table 2.3-2 Effectiveness of the Proposed Project in Meeting the Purpose and Need 21 Table 2.3-3 Potential Effects of the Proposed Project on Forest Resources 22 Table 3.1-1 Wilderness Areas within the Arapaho and Roosevelt National Forests 35 Table 3.2-1 Waterways within the Proposed Project Area by Feature Type 38 Table 3.2-2 Stream Crossings and Road Classes within the Proposed Project Area 38 Table 3.2-3 Arapaho and Roosevelt National Forest Roads within 500 Meters of Water 39 Bodies Table 3.3-1 Fish Species Likely to Occur Within the Proposed Project Area 43 Table 3.4-1 Threatened and Endangered Plant Species Considered for Analysis 49 Table 3.4-2 Sensitive Plant Species Considered for Analysis 51 Table 3.4-3 Proposed, Threatened, Endangered, and Sensitive (PTES) Plant Species 56 Determinations Table 3.4-4 Sensitive Plant Species Determinations 56 Table 3.4-5 Species of Local Concern Evaluated for the Biological Evaluation 57 Table 3.5-1 Project Area Acreage by Dominant Cover Type 62 Table 3.5-2 General Cover Types Along Roads within the Proposed Project Area 63 Table 3.5-3 Dominant Tree Cover Types Along Roads within the Proposed Project Area 63 Table 3.5-4 General Cover Types Along Trails in the Proposed Project Area 63 Table 3.5-5 Dominant Tree Cover Types Along Trails in the Proposed Project Area 64 Table 3.5-6 General Cover Types in Administrative Areas within the Proposed Project 64 Area Table 3.5-7 Dominant Tree Cover Types in Administrative Areas within Proposed 64 Project Area Table 3.5-8 Old Growth Strategy Stands within the Proposed Project Area 67 Table 3.7-1 Cultural Resources by Historic Theme 75 Table 3.8-1 Miles and Classes of Roads within the Arapaho and Roosevelt National 79 Forests Table 3.8-2 Miles of Trails within the Arapaho and Roosevelt National Forests 79 Table 3.9-1 Arapaho and Roosevelt National Forests Management Areas within the 82 Project Area Table 3.10-1 SMS Designated Areas within the Arapaho and Roosevelt National Forests 88 and the Proposed Project Area Table 3.12-1 Management Indicator Species (MIS) on the Arapaho and Roosevelt 95 National Forests and Relevance to the Proposed Project Table 3.12-2 Region 2 Sensitive Species within the Proposed Project Area and Potential 98 Effects Table 3.12-3 Federally Listed Species within the Proposed Project Area and Potential 102 Effects Table 3.13-1 Acreage within the Arapaho and Roosevelt National Forests by County 105 Table 4-1 Arapaho and Roosevelt National Forests Interdisciplinary (ID) Team 111 Table 4-2 Federal, State, and Local Agencies Notified During the Scoping Period 111 Table 4-3 Native American Tribes Notified During the Scoping Period 113 ____________________________________________________________________________________________________________ Page iv –Final – Environmental Assessment of the Forest-Wide Hazard Tree Removal and Fuels Reduction Project Abbreviations and Acronyms amsl Above mean sea level APE Area of potential effects ARNF Arapaho and Roosevelt National Forests ATV All-terrain vehicle BA Biological Assessment BCPOS Boulder County Parks and Open Space BE Biological Evaluation BLM Bureau of Land Management BMPs Best Management Practices B.P. Before present (1950) CAPCD Colorado Air Pollution Control Division CCC Civilian Conservation Corps CFR Code of Federal Regulations CNHP Colorado Natural Heritage Program CWD Coarse Woody Debris EA Environmental Assessment EO Executive Order EIS Environmental Impact Statement GIS