On this page:
State Standards in Effect for CWA Purposes
- [See Nutrient Criteria ]
(Effective December 22, 2003) Emergency rulemaking 1200-4-3-.03(3)(k) establishing a nutrient criterion applicable to all waters of the state. - [See Chapter 1200-4-3 General Water Quality Criteria ]
(Effective March 27, 2008) State regulation establishing water quality standards for surface waters of the State. - [See Chapter 1200-4-4 Use Classifications for Surface Waters ]
Federally Proposed or Promulgated Standards
None at this time.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Nutrient Criteria (PDF)(3 pp, 138 K)
- Chapter 1200-4-3 General Water Quality Criteria (PDF)(33 pp, 236 K)
- Chapter 1200-4-4 Use Classifications for Surface Waters (PDF)(34 pp, 171 K)