Conde Creek Grazing Allotment Lease Authorization
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UNITED STATES DEPARTMENT OF THE INTERIOR BUREAU OF LAND MANAGEMENT MEDFORD DISTRICT OFFICE ASHLAND RESOURCE AREA ENVIRONMENTAL ASSESSMENT For the CONDE CREEK GRAZING ALLOTMENT LEASE AUTHORIZATION (DOI-BLM-OR-M060-2010-0027-EA) List of Preparers Responsibility Stephen Slavik Rangeland Management Specialist Steve Godwin Wildlife Biologist Jennifer Smith Fish Biologist Ted Hass Soils Scientist Tim Montfort Hydrologist Dulcey Schuster Botanist, NEPA Compliance Anthony Kerwin NEPA Compliance Location: The Conde Creek Allotment is located to the northeast of Howard Prairie Lake in T. 37 S., R. 2 E., in Section 36; T. 37 S., R. 3 E., in Sections 29, 30, 31, and 32; T. 38 S., R. 2 E., in Sections 1, 2, 11, 12, 13; T. 38 S., R. 3 E., in Sections 4, 5, 6, 7, 8, 9, 15, 16, 17, 18, 20, and 21; W.M.. The allotment encompasses approximately 5,346 acres of BLM administered land. i TABLE OF CONTENTS CHAPTER 1 - PURPOSE AND NEED .......................................................................................................................... 1 INTRODUCTION ......................................................................................................................................................... 1 PURPOSE AND NEED ................................................................................................................................................. 1 SCOPING AND ISSUES ...............................................................................................................................................1 DECISION FRAMEWORK ............................................................................................................................................ 2 CONFORMANCE WITH LAND USE PLANS & LEGAL REQUIREMENTS .......................................................................... 2 RELEVANT ASSESSMENTS AND PLANS ....................................................................................................................... 3 Conde Creek Allotment Rangeland Health Assessment .................................................................................. 3 Little Butte Creek Watershed Analysis ............................................................................................................ 4 Water Quality Restoration Plan for the North and South Fork Little Butte Key Watershed ........................... 5 CHAPTER 2 - ALTERNATIVES ................................................................................................................................... 5 INTRODUCTION ......................................................................................................................................................... 5 Common to All Grazing Alternatives .................................................................................................................... 6 Grazing Management ...................................................................................................................................... 6 Monitoring....................................................................................................................................................... 7 ALTERNATIVE 1 (NO ACTION) .................................................................................................................................... 8 Grazing Management ........................................................................................................................................... 9 Terms and Conditions of the Current Lease ......................................................................................................... 9 Range Improvements & Maintenance ............................................................................................................... 10 ALTERNATIVE 2 ........................................................................................................................................................ 10 Grazing Management ......................................................................................................................................... 10 Terms and Conditions ........................................................................................................................................ 10 Range Improvements & Maintenance ............................................................................................................... 11 ALTERNATIVE 3 ........................................................................................................................................................ 11 Grazing Management ......................................................................................................................................... 12 Terms and Conditions ........................................................................................................................................ 12 Range Improvements & Maintenance ............................................................................................................... 13 ALTERNATIVE 4 ........................................................................................................................................................ 13 Grazing Management ......................................................................................................................................... 13 Terms and Conditions ........................................................................................................................................ 14 Range Improvement Projects by Maintenance Responsibility by Alternative ....................................................... 15 SUMMARY AND COMPARISON OF THE ALTERNATIVES ........................................................................................... 17 CHAPTER 3 - AFFECTED ENVIRONMENT & ENVIRONMENTAL IMPACTS ................................................................ 18 INTRODUCTION ....................................................................................................................................................... 18 CONSIDERATION OF CUMULATIVE EFFECTS ............................................................................................................ 18 Silviculture Treatments ...................................................................................................................................... 18 Windy Soda Blowdown Salvage ......................................................................................................................... 19 RANGE RESOURCES ................................................................................................................................................. 20 Affected Environment ........................................................................................................................................ 20 Environmental Consequences ............................................................................................................................ 21 Methane Emissions ....................................................................................................................................... 21 Economic Analysis by Alternative .................................................................................................................. 22 WATER RESOURCES ................................................................................................................................................. 23 Characterization ................................................................................................................................................. 23 Climate .......................................................................................................................................................... 23 Analysis Area Description .............................................................................................................................. 24 Affected Environment ........................................................................................................................................ 25 Water Quality ................................................................................................................................................ 25 Environmental Consequences ............................................................................................................................ 32 Alternative 1 (No Action) ............................................................................................................................... 33 Alternative 2 .................................................................................................................................................. 35 ii Alternative 3 ................................................................................................................................................. 36 Alternative 4 .................................................................................................................................................. 38 FISHERIES RESOURCES ............................................................................................................................................ 39 Issues and Concerns ........................................................................................................................................... 39 Discussion of Issues/Concerns (Potential Effects) and Related Research ....................................................