Coal Ash Is Not Hazardous Waste under U.S. Agency Rules

The new label means that states, not the EPA, will be the primary enforcer of rules regarding coal ash, a byproduct of coal-based power production containing toxic materials such as arsenic and lead

Join Our Community of Science Lovers!

By Jonathan Kaminsky

Dec 19 (Reuters) - The U.S. Environmental Protection Agency issued rules on Friday labeling coal ash, a byproduct of coal-based power production containing toxic materials such as arsenic and lead, as non-hazardous waste.

The label means that states, and not the EPA, will be the primary enforcers of the new rules, which will require the closure of some coal ash holding ponds leaking contaminants into surrounding water.


On supporting science journalism

If you're enjoying this article, consider supporting our award-winning journalism by subscribing. By purchasing a subscription you are helping to ensure the future of impactful stories about the discoveries and ideas shaping our world today.


"This rule is a huge step forward in our effort to protect communities from coal ash storage impoundment failures as well as the improper management and disposal of coal ash in general," said EPA Administrator Gina McCarthy, speaking on a conference call with reporters.

The agency first proposed rules governing coal ash storage in 2010, in the wake of a massive spill at a ruptured holding pond in Tennessee that has cost more than $1 billion to clean up.

Environmental groups expressed disappointment with the long-anticipated rules, saying they did not go far enough in protecting the environment and human health in areas where coal ash is stored. (Reporting by Jonathan Kaminsky; Editing by Cynthia Johnston and Lisa Shumaker)

It’s Time to Stand Up for Science

If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in that two-century history.

I’ve been a Scientific American subscriber since I was 12 years old, and it helped shape the way I look at the world. SciAm always educates and delights me, and inspires a sense of awe for our vast, beautiful universe. I hope it does that for you, too.

If you subscribe to Scientific American, you help ensure that our coverage is centered on meaningful research and discovery; that we have the resources to report on the decisions that threaten labs across the U.S.; and that we support both budding and working scientists at a time when the value of science itself too often goes unrecognized.

In return, you get essential news, captivating podcasts, brilliant infographics, can't-miss newsletters, must-watch videos, challenging games, and the science world's best writing and reporting. You can even gift someone a subscription.

There has never been a more important time for us to stand up and show why science matters. I hope you’ll support us in that mission.

Thank you,

David M. Ewalt, Editor in Chief, Scientific American

Subscribe