Mealey's ( March 31, 2023, 1:34 PM EDT) -- CLEVELAND — The United States sued Norfolk Southern Corp. on March 31 for civil penalties and response costs under the Comprehensive Environmental Response, Compensation, and Liability Act, alleging that the company violated the Clean Water Act (CWA) by discharging oil and hazardous substances into waters of the United States when its train derailed near East Palestine, Ohio....