Last week, more than a billion gallons of coal fly ash, a byproduct of burning coal, spilled across 300 acres of land in Tennessee after a dike burst at a retention pond used to store the ash. Stephen ...

LOUISVILLE, Ky. — In parts of eastern Kentucky, the pictures coming out of Hungary of the red sludge that roared from a factory's reservoir, downstream into the Danube River, are all too reminiscent ...

An estimated 200 million gallons of contaminated water has been seeping each year for 30 years from Colstrip ash pond, rendering the groundwater undrinkable for the Colstrip community of about 2,300.

An acid-mine sludge pond in central Pennsylvania. A byproduct of coal mining, such sites may be rich with critical minerals. Credit must be given to the creator. Only noncommercial uses of the work ...

State and local authorities are working to determine the environmental impact after about 10 million gallons of sludge was released from a settling pond to rescue a worker at a Trempealeau County frac ...

Drums of radioactive sludge from Sellafield's Pile Fuel Storage Pond - the world's oldest nuclear storage pond - have been processed in the site's encapsulation plant for the first time. The waste is ...

"We all live downstream," as the saying goes, and that becomes more of a concern when abandoned mines are upstream, which is the case near the headwaters of the Dolores River. North of Rico along the ...

The global supply-chain crisis has caused mining giant Rio Tinto to resort to sifting through mineral sludge. The sludge is in a giant copper pit near Salt Lake City, Utah, according to the Wall ...

HOBART -- Recent runoffs from a sludge pond that spilled into Duck Creek don't appear to have posed a serious environmental or health problem, a state official said Wednesday. But, Hobart and Indiana ...