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Water Quality Standards Regulations: Arkansas

Presented below are water quality standards in effect for Clean Water Act (CWA) purposes for this state.

EPA is posting these standards as a convenience to users and has made a reasonable effort to assure their accuracy. Also, for each document listed under "State Standards in Effect for CWA Purposes", EPA has made a reasonable effort to identify parts of the standards that are disapproved or are otherwise not in effect for CWA purposes.

On this page:

State Standards in Effect for CWA Purposes
Federally Proposed or Promulgated Standards

State Standards in Effect for CWA Purposes

[See Regulation Establishing Water Quality Standards for Surface Waters of the State of Arkansas (PDF)]
(Effective June 4, 2020) State regulation establishing water quality standards for surface waters of the State. Please note that not all parts of this document are effective for Clean Water Act purposes. See cover pages for more information.

Federally Proposed or Promulgated Standards

None at this time.

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Regulation Establishing Water Quality Standards for Surface Waters of the State of Arkansas (PDF)(126 pp, 21 MB)