Water Quality Standards Regulations: Connecticut

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 Water Quality Standards ]
(Effective December 11, 2013) State regulation establishing water quality standards for surface and ground waters of the state.
Note: These regulations contain additional provisions related to groundwater that are outside the scope of the Clean Water Act and the implementing federal regulations, but are included here as supplementary information.
[See Water Discharge Permit Regulations ]
Note: These regulations contain additional provisions related to implementation of water quality- and technology-based standards into National Pollutant Discharge Elimination System permits that may be outside the scope of the federal water quality standards regulations. However, the regulations are included here as supplementary information.

Federally Proposed or Promulgated Standards

None at this time.

Top of Page

You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.

Water Quality Standards (PDF)(72 pp, 2 MB)
Water Discharge Permit Regulations (PDF)(93 pp, 9 MB)