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Technical Revision (TR -28) <br />Environmental Protection Plan <br />Climax Molybdenum Company <br />Permit No. M-1977-493 <br />Climax Molybdenum Company <br />Permit M-1977-493 <br />Environmental Protection Plan <br />Table of Contents <br />T-1 Introduction.................................................................................................................. 3 <br />EPP Version: R4 T -i August 2018 <br />T-1.1 <br />Purpose and Objectives...................................................................................... <br />3 <br />T-1.1.1 Reference and Indexing..................................................................... <br />3 <br />T-1.1.2 Changes in Referenced Information and Documents ......................... <br />3 <br />T-1.1.3 Emergency Response Plan for Designated Chemicals ...................... <br />4 <br />T-1.2 <br />Description of Site............................................................................................... <br />4 <br />T-2 <br />Other <br />Agency Environmental Protection Measures ................................................... <br />5 <br />T-2.1 <br />General Information............................................................................................ <br />5 <br />T-2.2 <br />Specific Permits and Authorizations.................................................................... <br />6 <br />T-3 <br />Designated Chemicals................................................................................................. <br />7 <br />T-3.1 <br />List of Chemicals and Specific Locations............................................................ <br />7 <br />T-3.2 <br />Designated Chemicals Information..................................................................... <br />9 <br />T-3.2.1 Collector............................................................................................9 <br />T-3.2.2 Collector Dispersant.........................................................................10 <br />T-3.2.3 Primary Frother.................................................................................10 <br />T-3.2.4 Cleaner Frother................................................................................10 <br />T-3.2.5 Pyrite (Iron) Depressant....................................................................11 <br />T-3.2.6 Galena and Chalcopyrite (Lead and Copper) Depressant.................11 <br />T-3.2.7 Surfactant.........................................................................................12 <br />T-3.2.8 Froth Modifier...................................................................................12 <br />T-3.2.9 Flocculent.........................................................................................13 <br />T-3.2.10 pH Modifier.......................................................................................13 <br />T-3.2.11 Pyrite and Chalcopyrite (Iron and Copper) Depressant ..................... <br />13 <br />T-3.3 <br />Water Treatment Chemicals Information............................................................13 <br />T-3.3.1 Flocculent.........................................................................................13 <br />T-3.3.2 pH Adjustment (Lime).......................................................................14 <br />T-3.3.3 pH Adjustment (Sulfuric Acid)...........................................................14 <br />T-3.4 <br />Safety Data Sheets for Designated Chemicals...................................................14 <br />T-3.5 <br />Disposal, Decommissioning, Detoxification or Stabilization................................14 <br />T-3.5.1 Temporary Cessation/Prolonged Lack of Mineral Production ............ <br />14 <br />T-3.5.2 Final Closure....................................................................................14 <br />T-4 <br />Acid -Forming Materials and Acid Mine Drainage......................................................15 <br />T-4.1 <br />Temporary Cessation/Prolonged Lack of Mineral Production .............................15 <br />T-4.2 <br />Final Closure......................................................................................................15 <br />T-5 <br />Climax Environmental Protection Facilities..............................................................16 <br />T-5.1 <br />Arkansas River Watershed................................................................................18 <br />T-5.1.1 Potential Sources of Contamination..................................................18 <br />T-5.1.2 Environmental Protection Facilities...................................................19 <br />T-5.2 <br />Eagle River Watershed......................................................................................19 <br />T-5.2.1 Potential Sources of Contamination..................................................19 <br />T-5.2.2 Environmental Protection Facilities...................................................20 <br />T-5.3 <br />Tenmile Creek Watershed.................................................................................24 <br />T-5.3.1 Potential Sources of Contamination..................................................24 <br />EPP Version: R4 T -i August 2018 <br />