BLM LIBRARY 88075010 CORNERSTONE INDUSTRIAL MINERALS, INC. TUCKER HILL PERLITE MINE EXPANSION PROJECT PLAN OF OPERATIONS AMENDMENT No. 7 Environmental Impact Statement DOI-BLM-ORWA-L050-2016-0001-EIS August 2018 U.S. Department of the Interior Bureau of Land Management Lake view Resource Area Lakeview District Lakeview, Oregon Estimated Costs Associated with Developing and Producing this DEIS: $499,000 HD 243 .07 C676 2018 United States Department of the Interior BUREAU OF LAND MANAGEMENT Lakeview District Office 1301 South G Street, Lakeview, OR 97630 www.blm.gov/lakcvicw In Reply Refer To: 3809 (L050) Dear Reader: In accordance with the National Environmental Policy Act, the Bureau of Land Management (BLM) has prepared the attached draft Environmental Impact Statement (EIS) for a proposal to expand existing perlite mining operations at Tucker Hill. The Draft EIS analyzes the potential environmental impacts of the proposed mine expansion and three other alternatives on approximately 340 acres of BLM-administered lands in central Lake County, Oregon. This analysis will be used as the basis for approving, modifying, or denying the claimant’s proposed amendment to their existing mining plan of operation. I would appreciate your comments on the adequacy of this analysis. The following types of comments would be the most helpful in the decision-making process; comments that: 1. Are as specific as possible, 2. Address the appropriateness of the range of alternatives, 3. Identify unaddressed issues, 4. Provide new information or data, 5. Identify errors in the data or analysis. Comments on the draft EIS must be submitted to me in writing within 45 days from the date that the U.S. Environmental Protection Agency publishes its Notice of Availability of the EIS in the Federal Register or by UL1 2 ^ ZOio ; whichever is later. Comments must be submitted to the following address: Lakeview District Bureau of Land Management 1301 South G Street Lakeview, OR 97630 At this time, no public meeting/hearing is planned. However, a public meeting/hearing meeting may be held if there is sufficient interest. Any person desiring a public meeting/hearing must request one in writing and provide sufficient reason(s) for the need for such a meeting/hearing. Comments on the draft EIS, including names and street addresses, will be made available for public review at the Lakeview District office during regular business hours (7:45 am to 4:30 pm; Monday through Friday, except holidays). Comment letters may also be published in the final EIS. Respondents may request confidentiality. However, if you wish to withhold your name or address 2 from public review or from disclosure under the Freedom of Information Act, you must state this prominently at the beginning of your written comment. Such requests will be honored to the extent allowed by law. All submissions from organizations and businesses, and from individuals identifying themselves as representatives or officials of organizations or businesses, will be made available for public inspection in their entirety. Questions or comments concerning the proposal may be directed to Mr. Phil D’Amo or Mr. Paul Whitman at the address above, or by telephoning (541) 947-2177. Additional copies of the draft EIS may also be obtained by contacting the Lakeview District office. Thank you for your interest in the management of these public lands. Sincerely, District Manager Enclosure A 4[0(oU4 h<W5 5 ^lo ,0T CORNERSTONE INDUSTRIAL MINERALS, INC. TUCKERHlLL PERLITE MINE EXPANSION PROJECT PLAN AMENDMENT NO. 7 ENVIRONMENTAL IMPACT STATEMENT CORNERSTONE INDUSTRIAL MINERALS, INC. TUCKER HILL PERLITE MINE EXPANSION PROJECT PLAN OF OPERATIONS AMENDMENT No. 7 ENVIRONMENTAL IMPACT STATEMENT TABLE OF CONTENTS Page ABBREVIATIONS AND ACRONYMS 9 EXECUTIVE SUMMARY 11 ES. 1 Introduction 11 ES.2 Purpose and Need 11 ES.2.1 Need 11 ES.2.2 Purpose 11 ES.3 Public Involvement 12 ES.4 Planning Issues 12 ES.5 Alternatives 15 ES.5.1 Alternative 1 -No Action 15 ES.5.2 Alternative 2 - Proposed Plan of Operations (Proposed Action) 15 ES.5.3 Alternative 3 - Decreased Disturbance Area Alternative, with Mine Management Area 16 ES.5.4 Alternative 4 - BLM Preferred Alternative 16 ES.6 Affected Environme nt 17 ES.7 Environmental Consequences 17 ES.8 Next Steps 18 1 INTRODUCTION / PURPOSE OF AND NEED FOR ACTION 19 1.1 Introduction 19 1.2 Purpose and Need for Action 20 1.3 BLM and Non-BLM Policies, Plans, and Programs 21 1.4 Land Use Plan Conformance 22 1.4.1 LakeviewResource Management Plan 22 1.4.2 Oregon Greater Sage-Grouse Approved Resource Management Plan Amendment 23 1.5 Authorizing Actions 23 1.6 Scoping and Issues 23 1.7 Mine History and Existing and Approved Facilities 26 2 DESCRIPTION OF THE PROPOSED ACTION AND ALTERNATIVES 29 2.1 Alternative 1 - No Action 29 2.2 Alternative 2 - Plan of Operations Proposal (Proposed Action) 29 2.2.1 Growth Media Management 30 2.2.2 Quarry Development 30 2.2.3 Off-Specification Rock Management 31 2.2.4 Mining Scenario and Cross Sections 31 2.2.5 Equipment 31 2.2.6 Work Force 32 4 Cornerstone industrial minerals, Inc. tuckerHill perlite mine expansion project plan amendment no. 7 environmental impact statement 2.2.7 Haul Road Access 32 2.2.8 Access Control 32 2.2.9 General Schedule of Operations 33 2.2.10 Surface Occupancy 33 2.2.11 Water Management Plan 33 2.2.12 Drainage and Sediment Control Plan 34 2.2.13 Waste Management 34 2.2.14 Reclamation Plan 34 2.2.14.2 Revegetation 35 2.2.14.3 Quarry Reclamation 36 2.2.14.4 Monitoring and Maintenance of Reclaimed Areas 36 2.2.14.5 Isolation, Removal, and/or Control of Acid-Forming, Toxic or Deleterious Materials 37 2.2.14.6 Removal or Stabilization of Building, Structures, and Support Facilities37 2.2.14.7 Drill Hole Plugging 37 2.3 Alternative 3 - Decreased Disturbance Area Alternative, with Mine Management Area 37 2.4 Alternative 4 - BLM Preferred Alternative 37 2.4.1 Alternative 4 Reclamation Plan with Additional Mitigation Measures 38 2.4.1.1 Overview 38 2.4.1.2 Revegetation 38 2.4.1.3 Additional Monitoring 39 2.4.1.4 Prevention of Unnecessary or Undue Degradation 39 2.4.1.5 Drvn 4 un> 4i/\ 1 T n *«/1 TTo ac a uai v/ptiaiiuuai uauu uacc 2.4.1.6 Haul Road Reclamation 39 2.4.1.7 Quarry Reclamation 40 2.4.1.8 Isolation, Removal, and/or Control of Acid-Forming, Toxic or Deleterious Materials 40 2.4.1.9 Removal or Stabilization of Building, Structures, and Support Facilities41 2.4.1.10 Drill Hole Plugging 41 2.5 Applicable Oregon Greater Sage-Grouse RMPA Requirements (Tucker Hill Quarry Reclamation Area - Alternatives 3 and 4 Only) 41 2.6 Alternatives Considered but not Analyzed in Detail 42 2.6.1 Limited Scale Mining Expansion 42 2.6.2 Seed Collection from Poachers Ridge Expansion Quarry 42 3 AFFECTED ENVIRONMENT 43 3.1 Introduction 43 3.2 Air Quality/Climate Change 45 3.3 Cultural Resources and Native American Concerns 48 3.4 Rangeland Management 51 3.5 Recreation/Access 52 3.6 Socioeconomics 52 3.7 Soils 53 3.8 Vegetation 54 3.9 Noxious Weeds, Invasive and Non-native Species 56 3.10 Visual Resources 57 5 CORNERSTONE INDUSTRIAL MINERALS, INC. TUCKER HILL PERLITE MINE EXPANSION PROJECT PLAN AMENDMENT NO. 7 ENVIRONMENTAL IMPACT STATEMENT 3.11 Water Quality 58 3.12 Wildlife 58 3.13 Special Status Wildlife Species 59 4 ENVIRONMENTAL CONSEQUENCES 62 4.1 Introduction 62 4.2 Air Quality/Climate Change 62 4.2.1 Alternative 1 (No Action) 62 4.2.2 Alternative 2 (Proposed Plan of Operations), Alternative 3 (Decreased Area with Mine Management Area) and Alternative 4 (BLM Preferred Alternative) 63 4.3 Cultural Resources and Native American Concerns 65 4.3.1 Alternative 1 (No Action) 65 4.3.2 Alternative 2 (Proposed Plan of Operations) 65 4.3.3 Alternative 3 (Decreased Area with Mine Management Area) 66 4.3.4 Alternative 4 (BLM Preferred Alternative) 66 4.4 Rangeland Management 70 4.4.1 Alternative 1 (No Action) 70 4.4.2 Alternative 2 (Proposed Plan of Operations), Alternative 3 (Decreased Area with Mine Management Area) and Alternative 4 (BLM Preferred Alternative) 70 4.5 Re creation/Access 70 4.5.1 Alternative 1 (No Action) 70 4.5.2 Alternative 2 (Proposed Plan of Operations), Alternative 3 (Decreased Area with Mine Management Area) and Alternative 4 (BLM Preferred Alternative) 71 4.6 Socioeconomics 71 4.6.1 Alternative 1 (No Action) 71 4.6.2 Alternative 2 (Proposed Plan of Operations), Alternative 3 (Decreased Area with Mine Management Area) and Alternative 4 (BLM Preferred Alternative) 71 4.7 Soils 72 4.7.1 Alternative 1 (No Action) 72 4.7.2 Alternative 2 (Proposed Plan of Operations), Alternative 3 (Decreased Area with Mine Management Area) and Alternative 4 (BLM Preferred Alternative) 72 4.8 Vegetation 72 4.8.1 Alternative 1 (No Action) 72 4.8.2 Alternative 2 (Proposed Plan of Operations), Alternative 3 (Decreased Area with Mine Management Area) and Alternative 4 (BLM Preferred Alternative) 73 4.9 Noxious Weeds, Invasive Nonnative Species 73 4.9.1 Alternative 1 (No Action) 73 4.9.2 Alternative 2 (Proposed Plan of Operations), Alternative 3 (Decreased Area with Mine Management Area), Alternative 4 (BLM Preferred Alternative) 74 4.10 Visual Resources Management 74 4.10.1 Alternative 1 (No Action) 75 4.10.2 Alternative 2 (Proposed Plan of Operations) 75 4.10.3 Alternative 3 (Decreased Area with Mine Management Area) 75 4.10.4 Alternative 4 (BLM Preferred Alternative) 76 4.11 Water Quality 76 6 Cornerstone industrial minerals, Inc. tucker Hill perlite mine Expansion project Plan amendment no. 7 environmental impact statement 4.11.1 Alternative 1 (No Action), Alternative 2 (Proposed Plan of Operations), Alternative 3 (Decreased Area with Mine Management Area) and Alternative 4 (BLM Preferred Alternative) 76 4.12 Wildlife 76 4.12.1 Alternative 1 (No Action) 77 4.12.2 Alternative 2 (Proposed Plan of Operations) 77 4.12.3 Alternative 3 (Decreased Area with Mine Management Area) 77 4.12.4 Alternative 4 (BLM Preferred Alternative) 78 4.13 Special Status Wildlife Species 78 4.13.1 Alternative 1 (No Action) 78 4.13.2 Alternative 2 (Proposed Plan of Operations) 79 4.13.3 Alternative 3 (Decreased Area with Mine Management Area) 80 4.13.4 Alternative 4 (BLM Preferred Alternative) 80 4.14 Cumulative Impacts 81 4.15 Irreversible/Irretrievable Impacts 86 5 CONSULTATION AND PUBLIC INPUT 87 5.1 List of Preparers 87 5.2 Persons, Groups and Agencies Contacted 87 6 LITERATURE CITED 89 LIST OF TABLES Table 1.5-1 Major Permits and Authorizations Required for Project Development Table 1.7-1 Mining History for the Tucker Hill Project Table 2.2-1 Monitoring Program and Schedule Table 2.4-1 Estimated Area of Disturbance by Alternative Table 3.1-1 Elements Associated with Supplemental Authorities and Rationale for Detailed Analysis for the Proposed Action Table 3.1-2 Other Resource Values or Uses Table 3.11-1 Plant Species in the Project Area Table 3.12-1 BLM Visual Resource Management Class Objectives Table 4.4-1 Mitigation Measures for Cultural Resources within APE LIST OF APPENDICES Appendix A: Maps Map 1.1.1 Project Location and Access Map 1.1.2 Land Status and Claims Map 1.2.1 Existing/Authorized and Proposed Facilities Map 1.3.1 Greater Sage-Grouse Habitat Map 2.1.1 Alternative 1 - No Action Map 2.1.2 Alternative 2 Map 2.1.3 Alternative 3 Map 2.1.4 Alternative 4 Map 2.2.1 Cross Section Locations 7 Cornerstone industrial minerals, inc. tucker hill perlite mine exp ansi on project Plan amendment No. 7 environmental Impact Statement Map 2.2.2 Cross Section A-A’ Map 2.2.3 Cross Section B-B’ Appendix B: Project Design Elements 8 CORNERSTONE INDUSTRIAL MINERALS, INC. TUCKERHlLL PERLITE MINE EXPANSION PROJECT Plan amendment no. 7 environmental impact Statement ABBREVIATIONS AND ACRONYMS AC EC Area of Critical Environmental Concern AKWA Area of Known Wolf Activity ANFO Ammonium Nitrate and Fuel Oil APE Area of Potential Effect AUM Animal Unit Month BATF Bureau of Alcohol, Tobacco, Firearms, and Explosives BLM Bureau of Land Management BMP Best Management Practice CCAA Candidate Conservation Agreements with Assurances CEQ Council on Environmental Quality CFR Code of Federal Regulations Cornerstone Cornerstone Industrial Minerals, Inc. DEQ Oregon Department of Environmental Quality DOGAMI State of Oregon Department of Geology and Mineral Industries EA Environmental Assessment EIS Environmental Impact Statement EPA Environmental Protection Agency FLPMA Federal Land Policy and Management Act of 1976 GHG greenhouse gas GHMA General Habitat Management Area GRSG Greater Sage-Grouse HPTP Historic Properties Treatment Plan ID Interdisciplinary IPCC Intergovernmental Panel on Climate Change KOP Key Observation Point LRA Lakeview Resource Area MDs Management Decisions MLRR Mineral Land Regulation & Reclamation MOU Memorandum of Understanding M S HA Mine Safety and Health Administration NAAQS National Ambient Air Quality Standards NEPA National Environmental Policy Act of 1969 NGB Northern Great Basin NLAA Not Likely to Adversely Affect NRCS Natural Resource Conservation Service NRHP National Register of Historic Places NOAA National Oceanic and Atmospheric Administration ODA Oregon Department of Agriculture ODFW Oregon Department of Fish and Wildlife OHV Off-Highway Vehicle OR-GAP • Oregon GAP Analysis Program ORS Oregon Revised Statutes OWRD Oregon Water Resources Department 9