Exelon Generation has completed the installation of a new state-of-the-art siren system around Three Mile Island (TMI) Generating Station, part of a $13 million investment to upgrade sirens around the company's nuclear stations.

The new system includes 96 sirens with improved sound coverage and battery backup capability. This ensures the sirens will be able to operate and provide notification if electrical service is interrupted.

The system will now undergo extensive testing in accordance with Federal Emergency Management Agency requirements for new siren systems.

The test schedule is as follows:

Thursday at 12:30 p.m. - full three-minute test

Thursday, Oct. 18 at 12:30 p.m. -- full three-minute test

Thursday, Nov. 1 - six separate tests beginning at 8 a.m. (three minutes each)

In the event of inclement weather these tests will occur on Friday, Nov. 2.

Thursday, Nov. 15 at 12:30 P.M. - full three-minute test.