American Heritage Rivers initiative
- Program to protect and restore America's rivers and their watersheds. Includes information to help local communities become involved in river projects.
- http://www.epa.gov/rivers/

EPA Fish and Wildlife Consumption Advisories
- These advisories inform the public that high concentrations of chemical contaminants have been found in local fish and wildlife and include recommendations to limit or avoid consumption of certain fish and wildlife species from specific U.S.
- http://www.epa.gov/OST/fish/

National Pollutant Discharge Elimination System
- Information on the NPDES permit program which requires all point sources discharging pollutants into waters of the United States to obtain a permit.
- http://www.epa.gov/owm/npdes.htm

Total Maximum Daily Load Program
- TMDL is a calculation of maximum amount of a pollutant that a waterbody can receive and still meet water quality standards, and an allocation of that amount to the pollutant's sources.
- http://www.epa.gov/owow/tmdl/

Oceans and Coastal Protection
- Overview of Ocean and Coastal Protection activities and programs, including coral reefs, marine debris, dredge material management, atmospheric deposition program, and the National Estuary Program.
- http://www.epa.gov/owow/oceans/

U.S. EPA Office of Wastewater Management
- Information on wastewater treatment technologies, NPDES permitting requirements, biosolids management, EPA water quality initiatives, and other water quality topics.
- http://www.epa.gov/owm/

U.S. EPA Wetlands Homepage
- Works to encourage and enable others to act effectively in protecting and restoring the nation's wetlands and associated ecosystems.
- http://www.epa.gov/owow/wetlands/

EPA Office of Ground Water and Drinking Water
- Works to ensure safe drinking water and to protect the quality of our Nation's Drinking Water Supply.
- http://www.epa.gov/OGWDW/