We can expect new emergency sirens in the 10-mile radius around the Oyster Creek Nuclear power plant to be installed by early June.

The Lacey plant's parent company Exelon announces a $2-million dollar investment to upgrade all 42 sirens with ones with battery back-up technology.

Oyster Creek Site Vice President Garey Stathes says "these sirens are an important part of our emergency plan. While we are confident in our current siren system, the replacement system provides additional features such as battery backup and the best available technology."

Exelon officials say the upgrade is a part of an $11 million dollar project that began in 2010 to replace all 400 sirens surrounding all the company's Mid-Atlantic nuclear facilities, including Limerick Generating Station, Peach Bottom Atomic Power Station, and Three Mile Island Generating Station.

During the super storm, only seven of the 42 emergency sirens around Oyster Creek actually worked.