sentences:  The 2011 agreement, finalized in 2012, settled more than 480 alleged violations of the Clean Water Act that took place between 2005 and 2009 at fourteen of the company's onshore and offshore plants.The EPA press release announcing the 2011 consent decree noted that in the previous ten years "Trident has been a party to multiple administrative enforcement agreements and judicial consent decrees resolving similar violations at many of the same facilities.