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Calvert Cliffs Nuclear Plant

Located in Lusby, Md., Unit 1 of the 1,700 MW  Calvert Cliffs Nuclear Plant began generating electricity in 1975 and Unit 2 joined the system in 1977. Since then, Calvert Cliffs has continually set records for power production and worker safety.

In March 2000,  Calvert Cliffs Nuclear Power Plant opened a new chapter in nuclear power history by becoming the first plant in the United States to earn 20-year extensions of its operating licenses from the U.S. Nuclear Regulatory Commission. License renewal extends the original 40-year operating lives of Calvert Cliffs two nuclear reactors from 2014 to 2034 (Unit 1) and from 2016 to 2036 (Unit 2). In 2002 and 2003, Calvert Cliffs Nuclear Power Plant replaced the steam generators in Units 1 and 2 respectively and with Unit 2 set world records in duration and weld quality for this type of replacement. These replacements, as well as other major upgrades, will help the plant continue to safely generate clean electricity for many years to come.

State and local emergency management staff work with emergency planning for Constellation Energy Group to review and update evacuation and sheltering information for residents living within ten miles of Calvert Cliffs Nuclear Power Plant.  The following Calvert County zone descriptions will help you determine your zone.  Knowing your zone number could be important in an emergency.  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.  In Calvert County:

Zone 1:

Bordered by Calvert Beach Road to the north; the Chesapeake Bay to the east; southern boundaries include Breeden Road/Sollers Wharf Road/Old Mill Road/Hellen Creek/St. Paul Branch/Route 492/Calvert Cliffs State Park; bordered by Route 2 and 4/St. Leonard Creek to the west.

Zone 2:

Northern boundaries include Route 2 and 4/Governor Run Road; eastern boundaries include Chesapeake Bay/Route 2 and 4/St. Leonard Creek; southern boundaries include Calvert Beach Road and Patuxent River; bordered by Broomes Island Road/Nan Cove to the west.

Zone 3:

Northern boundaries include Breeden Road/Sollers Wharf Road/Old Mill Road/Hellen Creek/St. Paul Branch/Route 497/Calvert Cliffs State Park; bordered by the Chesapeake Bay to the east; bordered by the Patuxent River to the south and west.

Zone 4:

Bordered by Route 2 & 4 to the north; Broomes Island Road/Nan Cove to the east; the Patuxent River to the south; Route 231/Adelina Road/Sheridan Road to the west.

Zone 5:

Bordered by Dares Beach Road/Cassell Road to the north; the Chesapeake Bay to the east; Governor Run Road to the south; Tobacco Ridge Road (to Calvert County property gate)/Main Street at Monitor Way (to Calvert Towne)/Route 2 & 4 (at Calvert Towne) to the west.

Phone:  410-535-1600 or 301-855-1243, ext 2638
Fax:  410-535-3997; Email:  oem@co.cal.md.us