December 2, 2012
A river’s health is graded in part by its water quality, recreation, fish and aquatic life.
Stories this photo appears in:
Pollutants identified, solutions mandated for Potomac River with ‘barely passing’ grade.
The Potomac Conservancy released its sixth annual State of the Nation’s River on Nov. 15, handing the Potomac River’s health a “D” or “barely passing grade.”