Subpart BK. Subpart BK—Zinc Sulfate Production Subcategory

• § 415.630 - Applicability; description of the zinc sulfate production subcategory.
• § 415.631 - Specialized definitions.
• § 415.632 - Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available (BPT).
• §§ 415.633-415.635 - §[Reserved]
• § 415.636 - Pretreatment standards for new sources (PSNS).