The 410-foot Badger hauls vehicles and passengers across the lake between Ludington and Manitowoc, Wis., from May to October. Four years ago, the U.S. Environmental Protection Agency allowed the company to continue discharging its ash into the water while developing another disposal method or fuel source.
Wednesday was the deadline to stop dumping the ash. The company has applied for another permit, and the EPA said it would make a decision by March 1, 2013, after seeking comments from the public.
The ferry company said it still expects to be in business next year.