Nuclear power plants are designed to rigorous standards, have many redundant safety features, and are carefully regulated and monitored; however, problems and accidents can happen. If a nuclear power plant emergency did occur, it could result in dangerously high levels of radiation in your area, especially if within 10 miles of the plant. Exposure to high levels of radiation is extremely dangerous to you and your family. Radiation also can contaminate the water and soil within a 50-mile radius.
Image taken from MCB Camp Pendleton Supplement to Emergency Instruction for the San Onofre Nuclear Generating Station