Colin Bruce ruled that Prairie Rivers Network's lawsuit, which asked the court to declare that Dynegy Midwest Generation is violating the Clean Water Act, is invalid because the act only applies to surface waters and the pollution in question was discharged into groundwater. OAKWOOD — A federal judge has dismissed a lawsuit filed by a local environmental group against Dynegy Midwest Generation LLC over coal-ash pits at its former power plant on the Middle Fork River on jurisdictional grounds. read more