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Emergency Information

Each year Exelon mails a Public Emergency Information Calendar to county residents featuring information residents should know in the unlikely event of an emergency at Calvert Cliffs.

State and local emergency management personnel work with emergency planning for Exelon to review and update evacuation and sheltering information for residents living within 10 miles of Calvert Cliffs Nuclear Power Plant. Areas within this 10-mile radius are divided into five zones for emergency planning purposes. The following Calvert County zone descriptions will help you determine your zone. Knowing your zone number could be important in an emergency. The emergency calendar linked above contains a map of the zones along with further information.

Zone 1
Bordered by Calvert Beach Road to the north and the Chesapeake Bay to the east, southern boundaries include:
  • Breeden Road
  • Calvert Cliffs State Park
  • Hellen Creek
  • Old Mill Road
  • Route 492
  • Sollers Wharf Road
  • St. Paul Branch

    Route 2 and 4 / St. Leonard Creek make up the western border.

    Zone 2
    Northern boundaries include Route 2, Route 4, and Governor Run Road.

    Eastern boundaries include:
    • Chesapeake Bay
    • Route 2 and 4
    • St. Leonard Creek

    Southern boundaries include Calvert Beach Road and Patuxent River. It is bordered by Broomes Island Road and Nan Cove to the west.

    Zone 3
    Northern boundaries include:
    • Breeden Road
    • Calvert Cliffs State Park
    • Hellen Creek
    • Old Mill Road
    • Route 497
    • Sollers Wharf Road
    • St. Paul Branch

    It is bordered by the Chesapeake Bay to the east, and the Patuxent River to the south and west.

    Zone 4
    Zone 4 is bordered by Routes 2 and 4 to the north, Broomes Island Road and Nan Cove to the east, and the Patuxent River to the south.Route 231, Adelina Road, and Sheridan Road make up the western border.

    Zone 5
    Zone 5 is bordered by Dares Beach Road and Cassell Road to the north, the Chesapeake Bay to the east, and Governor Run Road to the south. Tobacco Ridge Road (to Calvert County property gate), Main Street at Monitor Way (to Calvert Towne), and Routes 2 and 4 (at Calvert Towne) make up the western border.

    Evacuation Instructions
    If state or local officials direct residents to take shelter or to evacuate, an Emergency Alert System message will be broadcast over local radio stations and local public access cable television stations would identify the affected areas by zone number.

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