"Concerns about toxics discharged from an unlined coal ash waste dump in suburban Washington, DC have prompted four environmental groups to give formal notice that they intend to sue Mirant MD Ash Management, LLC and Mirant Mid-Atlantic, LLC Corporation of Atlanta, Georgia for Clean Water Act violations in Maryland."

"A nonprofit organization that monitors the health of the Potomac River said Wednesday that a condition causing abnormalities in fish should serve as an urgent warning to rehabilitate the waterway that provides 90 percent of the D.C. area's drinking water."

"West Virginia political leaders promised Tuesday to speak "with one voice" to clarify the Obama administration's proposals to more strictly regulate mountaintop removal coal mining."

"WEST UNION, W.Va. -- A spill upstream of the town of West Union during the summer has revealed a gap in the system for notifying drinking water systems of possible contamination."

"Federal officials said Wednesday they have given marching orders to Maryland and other states that drain into the Chesapeake Bay to come up with detailed plans for reducing pollution plaguing the estuary, warning that states face development shutdowns or other as-yet unstated consequences if the water fails to get cleaner."

"Nearly two-thirds of the coal-ash dams across West Virginia might need repairs, and a quarter of them are ranked as being in poor or unsatisfactory condition, according to a report released Thursday by the state Department of Environmental Protection."

"A massive fish kill at the 38 mile long Dunkard Creek on the West Virginia–Pennsylvania border has scientists and regulators wondering what went wrong. All signs point to the toxic golden algae but some say it was the polluted creek, with high levels of chloride, which provided ripe conditions for the fish kill."

Gas drilling in the Marcellus Shale formation of Pennsylvania is bringing an economic boom there -- even as oil and gas drilling has fallen dramatically nationwide. But the gas is tax-exempt in Pennsylvania.

"Last call for the Maryland darter. The elusive little fish, one of the rarest in the world, hasn't been seen in 21 years. Now, government and university biologists are teaming up for one more, perhaps final search for it...."