Potomac and Anacostia rivers: An environmental timeline

  • Potomac River
  • Anacostia River

SOURCE: Interstate Commission on the Potomac River Basin, Anacostia Watershed Society, Environmental Protection Agency, Potomac Riverkeeper, Anacostia Riverkeeper, Potomac Conservancy, District Department of the Environment, Earth Conservation Corps. GRAPHIC: The Washington Post. Published May 2, 2012.