Water: Water Quality Standards
Federally Proposed or Promulgated Standards
- Final Water Quality Standards Bacteria Rule for Coastal and Great Lakes Recreation Waters (November 8, 2004)
- Withdrawal of Certain Federal Human Health and Aquatic Life Water Quality Criteria Applicable to Rhode Island, Vermont, the District of Columbia, Kansas and Idaho (April 12, 2000)
- Establishment of Numeric Criteria for Priority Toxic Pollutants; States' Compliance—Revision of Polychlorinated Biphenyls (PCBs) Criteria (November 1999)
- National Toxics Rule (Preamble) | National Toxics Rule (December 1992)
State-Issued Water Quality Standards
View unofficial copies of authorized Rhode Island Water Quality Standards that EPA has approved or are otherwise in effect for Clean Water Act purposes.