The operator of Ohio’s largest coal-fired power plant says it plans to switch to a “dry ash” handling system that complies with federal rules. Environmental advocates say questions remain

The operator of Ohio’s largest coal-fired power plant says it plans to switch to a different waste handling method to comply with a federal order to stop using an on-site coal ash pond. The U.S. Environmental Protection Agency last month denied a request by the James M. Gavin Power Plant for extra time to comply with federal coal ash rules that have become a higher priority for enforcement under President Joe Biden...