The Y-12 Public Warning Siren System located around Oak Ridge is being replaced this month, and a new system will be tested, a press release said.
A private contractor was scheduled to begin replacing the electronic sirens on Tuesday, and work could be completed on Sept. 14. As part of the replacement project, Y-12 will test the system by sounding the new sirens at noon on Sept. 26, the release said.
The system alerts the public of site emergencies, and it provides coverage for an area that extends out two miles from the site.
It has included 22 electronic sirens, but Y‑12 initiated an engineering study that indicated that it could reduce the siren locations from 22 to 12 by implementing new mechanical devices that would cover the same area with increased reliability and efficiency.
The current sirens were installed in the late 1980s, the release said.
It said the Sept. 26 tests will ensure that the public, Y-12 employees, and the environment would be protected in the event of an actual emergency at the Y-12 National Security Complex.


