Chesapeake Bay - Reporting Region Summary:
Scores & Conceptual Diagram
|Benthic Index of Biotic Integrity||
|Phytoplankton Index of Biotic Integrity||
|Water Quality Index||
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The Potomac River watershed drains approximately 14,670 square miles of land, covering four states. Major bodies of water in the area include the Potomac, Anacostia, Cacapon, Monocacy, the North Branch, the South Branch, the Occoquan, and the Shenandoah Rivers. The Potomac River flows over 383 miles from Fairfax Stone, West Virginia to Point Lookout, Maryland. Major cities in the watershed include Washington, D.C, Bethesda, Cumberland, Frederick, Gettysburg and Alexandria. Forest is the major land use, followed by agriculture. The 2000 census population of the watershed was approximately 5.35 million. Washington, D.C. alone had 3.7 million people (2000 census). Based on information available at the Interstate Commission on the Potomac River Basin website.
Editable Vector Version (SVG)
Potomac River Association
Potomac Heritage Trail Association
Anacostia Watershed Society
St Mary's River Watershed
Maryland DNR - Watershed Restoration Action Strategies
Virginia Tributary Strategies
Chesapeake Bay Program - Tributary Strategies
National Estaurine Eutrophication Assessment database