State Standards in Effect for CWA Purposes
- [See Water Quality Standards (9 VAC 25-260 et seq.) ]
(Effective October 6, 2020) 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.
Federally Proposed or Promulgated Standards
None at this time.You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.
- Water Quality Standards (9 VAC 25-260 et seq.) (PDF)(82 pp, 785 K)