January 21, 2016
A Missouri federal judge on Thursday refused to grant Ameren Corp.'s summary judgment bid in a U.S. Environmental Protection Agency suit accusing the company of making major upgrades to a coal-fired power plant without obtaining the required permits or limiting emissions.
September 10, 2014
A Missouri federal judge on Tuesday disqualified a former U.S. Environmental Protection Agency air chief from testifying in the government's case alleging Ameren Corp. made major upgrades to a coal-fired power plant without obtaining the required permits or limiting emissions.
January 30, 2012
A Missouri federal judge on Friday dismissed four of the U.S. Environmental Protection Agency's six claims in a suit alleging Ameren Corp. made major upgrades to a coal-fired power plant without obtaining the required permits or limiting emissions.
January 12, 2011
Environmental regulators Wednesday accused energy company Ameren Corp. of making major upgrades to a coal-fired power plant in Missouri without obtaining the required permits or limiting emissions.