Maryland will treat the Potomac River near Harpers Ferry with larvicide to reduce black flies. The water may discolor but ...

Naval Surface Warfare Center Dahlgren Division has issued the weekly schedule for operations at the Potomac River Test Range ...

It will continue to get harder to ensure there’s enough drinking water from the Potomac River, according to a group that ...

The Interstate Commission on the Potomac River Basin says there is a below normal probability of needing to release back up ...

By Karl Blankenship The Chesapeake Underwater grasses continued to mount a comeback in the lower Chesapeake Bay last year, ...

Tests raised questions about whether instruments in an Army Black Hawk helicopter may have led pilots to believe they were at ...

More to Do to Clean Up the Potomac River Stormwater runoff from urban and suburban areas is the major, fastest-growing culprit today polluting the Potomac River.

Hearings began on the deadly midair collision between a passenger plane and a Black Hawk helicopter over Washington, D.C., in ...

It's been six months since 67 people were killed in a midair collision over the Potomac River, and now lawmakers say they are ...

At their closest points, helicopters and planes routinely flew within 75 feet near the airport, according to the NTSB.

Army Secretary Daniel Driscoll gave an apology to family members of the crash victims in a private meeting, for both the Army ...

The first of the National Transportation Safety Board’s three days of investigative hearings is underway to help determine ...