Curtis EAST ST. LOUIS — CTI development is suing Citigroup for allegedly failing to remove and prevent hazardous waste from flowing onto surrounding property at a former aluminum manufacturing plant in Alton. CTI Development LLC filed a complaint Feb. 23 in the U.S. District Court for the Southern District of Illinois East St. Louis Division against Citigroup Inc., and MRC Holdings Inc., alleging negligence, trespass, strict Liability and other claims. According to the complaint, CTI Development owns property located on Chessen Lane in Alton that is adjacent to property owned by Citigroup. CTI alleges Citgroup's subsidiary, MRC Holdings, currently owns property located about 2,000 feet from the Mississippi River. The property is allegedly the former site of an USRC and ACC aluminum smelter operation.