Calvert Cliffs Siren Testing Dec. 2
There will be a full-cycle test of the alert and notification sirens throughout St. Mary’s, Calvert, and Dorchester counties at noon Monday, December 2, 2024.
Sirens on Aug. 3: This Is Only a Test
Exelon Calvert Cliffs Nuclear Power Plant will perform post-maintenance tests on two St. Mary’s County sirens. There will be a full-cycle test of alert and notification sirens No. 41 and No. 45 in St. Mary’s on Wednesday, Aug. 3.
