FILE - In this Feb. 16, 2012 file photo senior chief engineer Charles Cart stands at the wheel of the S.S. Badger in Ludington, Mich. On one level, it's a straightforward case of a busi

 

              FILE - In this Feb. 16, 2012 file photo senior chief engineer Charles Cart stands at the wheel of the S.S. Badger in Ludington, Mich. On one level, it
FILE - In this Feb. 16, 2012 file photo senior chief engineer Charles Cart stands at the wheel of the S.S. Badger in Ludington, Mich. On one level, it's a straightforward case of a business seeking a government permit to discharge wastewater. But when the Environmental Protection Agency rules shortly on whether to let the S.S. Badger car ferry continue dumping ash into Lake Michigan, it will be a milestone in a decades-old effort to keep afloat the last coal-fired steamship operating on U.S. waters. (AP Photo/John Flesher, File)