Few events at nuclear facilities are actual emergencies. If one were to occur, the facility operators, based on predetermined guidelines, would decide how serious it is.
There are 4 emergency classifications:
- Unusual Event
An Unusual Event is the least serious classification. It means there is a minor problem at the facility being handled by facility workers. Because of strict federal rules, such events are reported to local, state and federal officials. Unusual Events do not typically involve a release of radiation. - Alert
An Alert is an event that could affect facility safety. County, state and federal officials may activate emergency centers and monitor the situation. - Site Area Emergency
A Site Area Emergency is an event that could affect the safety of the public near the facility. Public officials will tell you what actions, if any, you should take. - General Emergency
A General Emergency is the most serious classification. Local officials will tell people in affected areas what actions to take for their safety.
At a Site Area Emergency, sirens may direct evacuation in these areas:
- The Columbia River between Vernita Bridge and Leslie Groves Park
- Wahluke Hunting Area
- Ringold Fishing Area
- Rattlesnake Mountain Shooting Facility
- Horn Rapids recreation areas along the Yakima
- River (including the Horn Rapids County Park) in Benton County
- Off-Road Vehicle Park in Richland
- Schools within 10 miles of Columbia Generating Station
At a General Emergency, residents throughout the Emergency Planning Zone (EPZ) will receive direction on what, if any protective actions are needed.
Sirens will activate, followed by an audible message telling residents what actions to take. Listen to the emergency instructions carefully and keep your radio tuned to the primary Emergency Alert System radio stations, KONA 610 AM / 105.3 FM, KORD 102.7 FM or KZHR 92.5 FM (Spanish language).