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TR -18 to Permit M- 1977 -342 <br />Environmental Protection Plan <br />1. INTRODUCTION 1 <br />1.1. Purpose and Objectives 1 <br />1.1.1. Reference and Indexing 1 <br />1.1.2. Changes in Referenced Information and Documents 1 <br />1.1.3. Emergency Response Plan 2 <br />2. DESCRIPTION OF SITE AND SITE FIGURES 4 <br />2.1. Henderson Mine 4 <br />2.2. Henderson Mill 4 <br />2.3. Site Figures (See Appendix I) 4 <br />3. OTHER AGENCY ENVIRONMENTAL PROTECTION MEASURES AND MONITORING 6 <br />3.1. General Information 6 <br />4. OTHER PERMITS AND LICENSES 7 <br />4.1. Specific Permits and Authorizations 7 <br />5. DESIGNATED CHEMICAL EVALUATION 9 <br />5.1. List of Chemicals and Specific Locations 9 <br />5.2. Known Potential to Affect Human Health and the Environment 9 <br />5.3. Material Safety Data Sheets for Designated Chemicals 11 <br />6. DESIGNATED CHEMICALS AND MATERIALS HANDLING 12 <br />6.1. Disposal, Decommissioning, Detoxification or Stabilization 12 <br />6.1.1. Designated Chemicals 12 <br />6.1.2. Acid - Forming Materials and Acid Mine Drainage 13 <br />7. ENVIRONMENTAL PROTECTION FACILITIES 15 <br />7.1. Mine Environmental Protection Facilities 15 <br />7.2. Mill Environmental Protection Facilities 16 <br />7.2.1. Process Water and Tailings Circuit 16 <br />7.2.2. Designated Chemical Storage Facilities 20 <br />Monitoring: Chemical storage containers are routinely inspected in accordance with the SPCC /MCP <br />(Appendix A) by Mill personnel to assess effectiveness and integrity of each EPF system. Maintenance and /or <br />updates to facilities, systems, equipment, or procedures are performed as needed to be protective of the <br />environment and to prevent releases. 24 <br />7.3. Storm Water Diversion System 24 <br />8. GROUNDWATER INFORMATION 25 <br />8.1. Water Maps 25 <br />8.2. Site Geology 25 <br />8.2.1. Mine 25 <br />8.2.2. Mill 25 <br />8.3. Site Hydrogeology 26 <br />8.3.1. Mine 26 <br />8.3.2. Mill 26 <br />9. GROUNDWATER QUALITY DATA 28 <br />9.1. Local Groundwater Uses 28 <br />Climax Molybdenum Company <br />Henderson Operations <br />Table of Contents <br />October, 2012 <br />Page i of v <br />