PARKERSBURG, W.Va. - E.I. du Pont de Nemours and Co. (DuPont) on Oct. 28 agreed to pay an $800,000 civil penalty for Clean Air Act (CAA) violations at its facility in Washington, W.Va., to resolve a lawsuit brought by the U.S. Environmental Protection Agency, according to a court filing in West Virginia federal court (United States of America, et al. v. E.I. du Pont Nemours and Co, No. 13-cv-27030, S.D. W. Va.).