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Technical Revision (TR -18) Climax Molybdenum Company <br />Environmental Protection Plan Permit No. M- 1977 -493 <br />Table of Contents <br />T -1 Introduction 3 <br />T -1.1 Purpose and Objectives 3 <br />T -1.1.1 Reference and Indexing 3 <br />T -1.1.2 Changes in Referenced Information and Documents 3 <br />T -1.1.3 Emergency Response Plan for Designated Chemicals 4 <br />T -1.2 Description of Site 4 <br />T -2 Other Agency Environmental Protection Measures 5 <br />T -2.1 General Information 5 <br />T -2.2 Specific Permits and Authorizations 6 <br />T-3 Designated Chemicals 7 <br />T -3.1 List of Chemicals and Specific Locations 8 <br />T -3.2 Designated Chemicals Information 9 <br />T -3.2.1 Collector 9 <br />T -3.2.2 Frother 9 <br />T -3.2.3 Cleaner Frother 10 <br />T -3.2.4 Iron Depressant 10 <br />T -3.2.5 Iron and Copper Depressant 11 <br />T -3.2.6 Lead and Copper Depressant 11 <br />T -3.3 Water Treatment Chemicals Information 12 <br />T -3.3.1 Flocculant 12 <br />T -3.3.2 Lime (Calcium Oxide) 12 <br />T -3.3.3 Sulfuric Acid 13 <br />T -3.4 Material Safety Data Sheets for Designated Chemicals 13 <br />T -3.5 Disposal, Decommissioning, Detoxification or Stabilization 13 <br />T -3.5.1 Temporary Cessation /Prolonged Lack of Mineral Production 13 <br />T -3.5.2 Final Closure 13 <br />T-4 Acid - Forming Materials and Acid Mine Drainage 14 <br />T -4.1 Temporary Cessation /Prolonged Lack of Mineral Production 14 <br />T -4.2 Final Closure 14 <br />T-5 Climax Mine Environmental Protection Facilities 15 <br />T -5.1 Arkansas River Watershed 17 <br />T -5.1.1 Potential Sources of Contamination 17 <br />T -5.1.2 Environmental Protection Facilities 18 <br />T -5.2 Eagle River Watershed 18 <br />T -5.2.1 Potential Sources of Contamination 18 <br />T -5.2.2 Environmental Protection Facilities 19 <br />T -5.3 Tenmile Creek Watershed 24 <br />T -5.3.1 Potential Sources of Contamination 24 <br />T -5.3.2 Environmental Protection Facilities 26 <br />T -5.4 Environmental Protection Facility Effectiveness Evaluation 29 <br />T -5.4.1 Arkansas River Watershed 29 <br />T -5.4.2 Eagle River Watershed 30 <br />T -5.4.3 Tenmile Creek Watershed 31 <br />EPP Version: R2 <br />Climax Molybdenum Company <br />Permit M- 1977 -493 <br />Environmental Protection Plan <br />T -i December 2011 <br />