Subpart I - METALLURGICAL ACID PLANTS SUBCATEGORY

Section 421.90 - Applicability: Description of the metallurgical acid plants subcategory
Section 421.91 - Specialized definitions
Section 421.92 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available
Section 421.93 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best available technology economically achievable
Section 421.94 - Standards of performance for new sources
Section 421.95 - Pretreatment standards for existing sources
Section 421.96 - Pretreatment standards for new sources
Section 421.97 - Reserved