NOTICE OF GROUNDWATER USE RESTRICTIONS IN VILLAGE OF SAUGET, CITY OF CAHOKIA HEIGHTS, and CITY OF EAST ST. LOUIS, ILLINOIS Solutia Inc., in accordance with the Final Decision issued pursuant to the Resource Conservation and Recovery Act by the United States Environmental Protection Agency Region V (USEPA) in February 2008 for the W.G. Krummrich Plant, is providing public notice of the existence of groundwater use restriction in the Village of Sauget and the City of Cahokia Heights and the City of East St. Louis, Illinois. These restrictions prohibit use of groundwater from within the corporate limits of these municipalities and also from certain specific areas within Cahokia as a potable water supply by the installation of drilling of wells or any other method. For specifics of these ordinances, residents of the Village of Sauget should refer to Ordinance No. 99-5, as amended by Ordinance No. 05-03. Residents of the City of Cahokia Heights should refer to Ordinance No. 12-1224. Residents of the City of East St. Louis should refer to Ordinance No. 97-10066. For any questions regarding this Notice, please contact Mr. W.G. Johnson, Solutia Inc., 575 Maryville Centre Drive, St. Louis, MO 63141; phone 314-674-1161. IPL0267315 Aug 31 2025