Code of Federal Regulations · Section
§ 422.40 — Applicability; Description Of The Defluorinated Phosphate Rock Subcategory
40 C.F.R. § 422.40
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The provisions of this subpart are applicable to discharges resulting from the defluorination of phosphate rock by application of high temperature treatment along with wet process phosphoric acid, silica and other reagents.
Authorizing Statute
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Congressional declaration of goals and policy33 U.S.C. § 1251