EPA

Véronique LaCapra / St. Louis Public Radio

Post updated 11:13 a.m. on Monday, 11/24/14. 

After four years and a court order that pitted environmental groups against the coal industry, the Environmental Protection Agency is nearing its December deadline to finalize regulations for how coal-fired power plants dispose of the ash they create.  

Coal ash — which contains toxic substances like mercury, lead and arsenic — can leach into groundwater if not properly contained. That has raised concerns among environmental groups who say Missouri does not properly regulate coal ash disposal.