An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Sustainable Watersheds and Nutrient Pollution

Sediment runoff into the Mississippi River.EPA develops the models and tools needed to achieve sustainable solutions for managing nutrients in our watersheds – from freshwater streams to marine coastal environments.

Research Activites:

  • Identify the appropriate nutrient levels for waterbodies and use those levels as targets for resource protection and nutrient reductions.
  • Use new technologies to monitor nutrient levels and water quality.
  • Evaluate the public health and environmental effects originating from waters with excess nitrogen and phosphorus.
  • Predict how management decisions and future climate change impacts will alter nutrient levels and affect aquatic ecosystems.
  • Assess the effectiveness of a range of management practices for achieving sustainable reductions in nutrient pollution of water resources.