['Water Programs']

['Antidegradation', 'Water Quality', 'Watershed Management']

05/13/2025

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Part 131—Water quality standards

...

Part 131—Water quality standards

RegSense Watershed Management CFR Regulations CFR Part Environmental Protection Agency (EPA)Water Programs Antidegradation Water Quality Environmental CWA Compliance English Focus Area USA

Authority: 33 U.S.C. 1251 et seq.

Subpart A—General Provisions

Subpart B—Establishment of Water Quality Standards

Subpart C—Procedures for Review and Revision of Water Quality Standards

Subpart D—Federally Promulgated Water Quality Standards

Source: 48 FR 51405, Nov. 8, 1983, unless otherwise noted.

['Water Programs']

['Antidegradation', 'Water Quality', 'Watershed Management']

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