From the Executive Summary: "On November 6, 2019 a Radiological Emergency Preparedness (REP) exercise was conducted at Comanche Peak Nuclear Power Plant (CPNPP) located near Glen Rose, Texas. The purpose of the exercise was to assess the level of preparedness of state and local responders to a simulated emergency at CPNPP. This exercise was conducted in accordance with U.S. Department of Homeland Security/Federal Emergency Management Agency (DHS/FEMA) policy and guidance concerning implementation of state and local emergency preparedness plans and procedures. [...] This report contains the final written evaluation of the biennial exercise. The state and local organizations except where noted in this report demonstrated knowledge of the emergency plans and procedures and properly implemented them. There were no Level 1 or Level 2 Findings and four plan issues identified during this exercise."
U.S. Nuclear Regulatory Commission: https://www.nrc.gov/