SUBPART E—Primary Electrolytic Copper Refining Subcategory (§421.50 to §421.57)
- 421.50—Applicability: Description of the primary electrolytic copper refining subcategory.
- 421.51—Specialized definitions.
- 421.52—Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
- 421.53—Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable.
- 421.54—Standards of performance for new sources.
- 421.56—Pretreatment standards for new sources.