US environmental regulators fix three errors in coal ash pond rules
What happened
The US environmental regulators are correcting three mistakes in their rules for old coal ash ponds. These corrections change how some coal ash storage sites are managed.
Why it matters
The rules for managing coal ash from power plants have been in flux for years. These small corrections clarify which specific types of coal ash ponds are covered by federal rules, and which are not. This means some power plant operators will face different requirements for cleaning up or closing these sites.
The signal
Watch for how many coal ash sites are reclassified under these corrected rules, and whether this leads to new cleanup orders or legal challenges.