September 1, 2011

Issued to Washington Group International, Inc. related to a Radiological Contamination Event during Building Demolition at the Separations Process Research Unit

On September 1, 2011, the U.S. Department of Energy (DOE) Office of Health, Safety and Security’s Office of Enforcement and Oversight issued a Preliminary Notice of Violation (NEA-2011-04) to Washington Group International, Inc. for violations of 10 C.F.R. Parts 830 and 835 associated with a radiological contamination event that occurred on September 29, 2010, during building demolition at DOE's Separations Process Research Unit.