- Thursday July 4th, 2019 :: 12:04 p.m. EDT
Advisory
Three Mile Island Siren Test Today
Three Mile Island Siren Test Today 
Exelon Generation will be testing the Three Mile Island (TMI) warning sirens today around 12:15pm.
Address/Location
South Londonderry Township Police Department, Pennsylvania
27 W Market St
Palmyra, PA 17078
Contact
Emergency: 9-1-1
Non-emergencies: 717-838-1376