The U.S. Environmental Protection Agency (EPA), Region 5, is providing notice of having filed an Administrative Complaint (Complaint) against BASF Corporation (Respondent) for alleged violations of the Clean Water Act (CWA). EPA alleges that beginning at least as early as July 1, 2012, and continuing until October 15, 2014, Respondent discharged pollutants, including metals and radioactive material, to the Cuyahoga River without a National Pollutant Discharge Elimination System (NPDES) permit. The violations were identified through several EPA inspections at the BASF facility in 2013 and 2014, and other communications between EPA and BASF. The Complaint seeks a civil penalty of $262,006 for the unpermitted discharge and for BASF's failure to comply with an Information Request issued under Section 308 of the CWA. EPA issued the Information Request to obtain information on the volume of, and pollutants present in, BASF's unpermitted discharge.