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Code of Federal Regulations
C.F.R. Title 40—Protection of Environment
CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY
SUBCHAPTER N—EFFLUENT GUIDELINES AND STANDARDS
PART 436—MINERAL MINING AND PROCESSING POINT SOURCE CATEGORY
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Subpart B—Crushed Stone Subcategory
§436.20 Applicability; description of the crushed stone subcategory.
§436.21 Specialized definitions.
§436.22 Effluent limitations guidelines representing the degree of effluent reduction attainable by the application of the best practicable control technology currently available.
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