Environmental groups praised the Environmental Protection Agency for proposing new coal-plant water pollution standards to limit the amounts and types of toxic metals and other pollutants released into America's waterways.
EPA's proposed effluent limitation guidelines for steam-electric powerplants, released on April 19 to comply with a consent-decree deadline, primarily target coal-fired powerplants that use wet-ash handling and scrubbers, but they also will affect some nuclear, oil and natural-gas plants.