After a $1.6 billion investment and years of work, the Seine River is officially open for public swimming for the first time ...

So-called “forever chemicals,” or PFAS, are odorless, tasteless compounds that can pose serious health risks — and they’re ...

Some Success in Richmond but PFAS Headaches Potomac Watershed Roundtable looks at challenges ahead This map shows the presence of PFAS detected in local waterways.

Managing per- and polyfluoroalkyl substances (PFAS) in water resources requires a basin-scale approach. Predicted environmental concentrations (PEC) and stream-vulnerability scores for PFAS were ...

The Potomac at Paw Paw had topped Moderate Flood Stage by Wednesday at 2:30 p.m. A USGS river gage reported the river at the Paw Paw had reached 29.89 feet on Wednesday afternoon.

A map from the USGS showed that some rivers were 23,000 percent of their normal median level or higher as of Friday morning.

In the fall of 2024, the Interstate Commission on the Potomac River Basin (ICPRB) and its partners at the USGS Eastern Ecological Science Center in West Virginia and the USGS Earth Resources ...

The aircraft used by NOAA to conduct LiDAR scanning of the Potomac River early Friday. Photograph courtesy of Unified Command. LiDAR—which stands for “light detection and ranging”— uses laser light ...

The water temperature in the Potomac was 33.8 degrees and the air temperature dipped down to 33 overnight at the Reagan Airport, according to the U.S. Geological Survey and the National Weather ...

Sixty-seven people are presumed dead after a passenger plane on approach to Reagan National Airport near Washington, DC, collided Wednesday night with a US Army helicopter midair, sending both ...