Copper, Lead, Zinc, Gold, Silver, and Molybdenum Ores Subcategory
        
        
          - 
            Law
          
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                CFR 40
              
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                Protection of Environment
              
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                Environmental Protection Agency
              
- 
                Effluent Guidelines and Standards
              
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                Ore Mining and Dressing Point Source Category
              
- Copper, Lead, Zinc, Gold, Silver, and Molybdenum Ores Subcategory