A roughly 300 million-gallon sewage spill into the Potomac River — which environmental advocates say rivals the scale of the Deepwater Horizon oil disaster — could take several more months to fully ...
The Potomac Conservancy gave the Potomac River a B grade in its recent report card, the fifth B in ten years. And while a B is better than the D the river got in 2011 or the C in 2013, the river is ...