Contamination levels in the waterway have declined, but health advisories remain in place for boaters downstream.

Add Yahoo as a preferred source to see more of our stories on Google. CABIN JOHN, Maryland – One of the largest sewage spills in U.S. history has turned into a political fight between the federal ...

A massive sewage overflow along the Potomac River has been significantly reduced, but freezing temperatures and winter weather are still complicating efforts to fully contain the damage after a major ...