Potomac Riverkeeper, Inc. was established in 2000 by principals from other environmental organizations, including the Potomac Conservancy, Piedmont Environmental Council, Audubon Naturalist Society, and Sierra Club. The goal was to create a strong advocate, the Potomac Riverkeeper, and enforce existing federal and state laws governing the Potomac watershed and protecting it from exploitation.

Potomac Riverkeeper stops pollution and restores clean water in the Potomac and Shenandoah Rivers and their tributaries through community action and enforcement of the Clean Water Act and other environmental laws. We have over 2700 members throughout the four states and the District Columbia that comprise the almost 15,000 square mile Potomac watershed. We have offices in Maryland, DC, Virginia and West Virginia.

The Potomac Riverkeeper, Ed Merrifield, was hired in 2003 and Jeff Kelble was hired as the Shenandoah Riverkeeper in 2006. In 2009, Brent Walls joined our organization as the Upper Potomac River Manager.

Potomac Riverkeeper is a member of the Waterkeeper Alliance, one of the fastest growing environmental organizations in the world. The Waterkeeper movement began on New York's Hudson River in 1966 when commercial and recreational fishermen united to save the river. The early successes of Hudson Riverkeeper spurred an explosive growth of similar grassroots programs across the globe.