State Standards in Effect for CWA Purposes
- [See Water Use Classifications and Water Quality Standards, Chapter 391-3-6-.03 ]
(Effective August 16, 2016)
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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.