Water Quality Standards Regulations: Connecticut
Presented are water quality standards in effect for Clean Water Act (CWA) purposes for this state.
The EPA is posting these standards as a convenience to users and has made a reasonable effort to assure their accuracy. For each document listed under "State Standards in Effect for CWA Purposes", the EPA has made a reasonable effort to identify parts of the standards that are disapproved or are otherwise not in effect for CWA purposes. Additionally, please note the documents may also contain provisions that the EPA does not have the authority and duty to act on under the Clean Water Act because the provisions are not water quality standards.
State Standards in Effect for CWA Purposes
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Water Quality Standards (pdf)
(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.
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Water Discharge Permit Regulations (pdf)
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.