It's an early sign the region may be turning a corner on what officials have called the worst sewage spill in U.S. history.

With one of the Potomac River’s drinking water intakes shut down after last month’s massive sewage spill, concerns are growing about how vulnerable the region is without a true secondary water source.

Federal assistance has arrived for the Potomac River sewage spill after the president approved D.C. Mayor Muriel Bowser’s emergency declaration request.

A dedicated group had turned a small, overgrown island on the Potomac River into a place of community use before hundreds of millions of gallons of sewage spilled into the water.

Nearly a month after a wastewater pipe broke and spewed hundreds of millions of gallons of raw sewage into the Potomac River ...

President Donald Trump has approved emergency assistance to Washington, D.C., to help the city address a sewage system leak ...

NPR's Erika Ryan reports from the site of one of the nation's largest sewage spills ever — just outside of Washington, D.C. — in January.

El Nino warps weather worldwide. Meteorologists say the natural El Nino cycle is both adding to and feeling the heat of a warming world. A new study says a shift ...

Drinking water around the District of Columbia hasn't been contaminated. But scientists say the environmental damage could be ...

The disaster sparked environmental and public health concerns as dangerous levels of bacteria were found miles away in the ...

Washington Mayor Muriel Bowser (D) on Wednesday declared a local public emergency over the sewage spill in the Potomac River ...

Drinking water in D.C., Northern Virginia, and Maryland has remained safe because of the location of the collapse of a portion of an aging regional sewer line, however day-to-day life could have ...