From the Executive Summary: "On June 8-9, 2010, a biennial Radiological Emergency Preparedness (REP) exercise consisting of both the Plume Exposure Pathway, 10-mile Emergency Planning Zone (EPZ) and 50-mile Ingestion Pathway Emergency Planning Zone (IPZ) was conducted around the River Bend Station (RBS), located near St. Francisville, Louisiana. Personnel from the U.S. Department of Homeland Security/Federal Emergency Management Agency (DHS/FEMA) Region VI, evaluated all activities. The purpose of the exercise was to assess the level of preparedness of local responders to react to a simulated radiological emergency at RBS. [...] There were three Deficiencies, no Areas Requiring Corrective Action (ARCA), and six Plan Issues identified during the exercise."
U.S. Nuclear Regulatory Commission: https://www.nrc.gov/
Radiological Emergency Preparedness Exercise. River Bend Station, Parishes of East Baton Rouge, East Feliciana, Point Coupee, West Baton Rouge, and West Feliciana, LA. June 8, 2010