Three Mile Island Sirens to be Tested June 27 Two separate three-minute full sounding tests will be conducted

LONDONDERRY TOWNSHIP, PA (June 25, 2013) – Three Mile Island, in cooperation with the counties around the plant, will conduct two separate tests of its emergency notification siren system on Thursday, June 27.

The first sounding will occur at 12:15 p.m. (EDT) and will test the original siren system. The second test will take place at 1:15 p.m. and will test the new, upgraded siren system that Exelon has installed. The new system includes battery backup capability that allows the sirens to sound even during power outages. The test of the new system is part of the process to gain Federal Emergency Management Agency approval to place the system in service.

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