A lawsuit filed Thursday alleges that the U.S. Department of Energy and National Nuclear Security Administration have violated a federal environmental law, and the civil complaint asks for an environmental review of the new design for the Uranium Processing Facility at the Y-12 National Security Complex, the largest federal construction project in Tennessee since World War II.

The lawsuit was filed in U.S. District Court in the District of Columbia by several public interest organizations—Oak Ridge Environmental Peace Alliance, Nuclear Watch of New Mexico, and Natural Resources Defense Council of Washington, D.C.— and four people: Ed Sullivan of Oak Ridge, and Ralph Hutchison, Jack Carl Hoefer, and Linda Ewald, all of Knoxville.

The defendants are Energy Secretary James Richard “Rick” Perry and NNSA Administrator Frank G. Klotz.

The complaint alleges that the NNSA is taking, but failing to consider, grave risks with safety and the potential environmental impacts of the nation’s nuclear weapons program, in violation of the National Environmental Policy Act.

It says the NNSA has refused to prepare a supplemental environmental impact statement, or SEIS, to consider important new information about the serious vulnerability of the new design for UPF, which is supposed to be completed by 2025 for no more than $6.5 billion. [Read more…]