If you're in the Pottstown area Monday afternoon and hear a loud siren, don't be alarmed; it's only a test.

Officials at the Limerick nuclear power plant in Montgomery County will perform its bi-annual siren test as part of an emergency preparedness program.

Residents in the 10-mile emergency planning zone around the Limerick Generating Station will hear a full sound siren test at 2 p.m. Monday.

The full sound test is performed on the first Monday in June and December.  A shorter, lower pitch is performed every month.

The warning sirens are part of several methods county emergency management officials use to provide emergency notification to area residents.

In an actual emergency, residents should tune to one of the county Emergency Alert System radio or television stations for further information.

If you have concerns, you can contact the following counties:
• Berks County (610) 374-4800
• Chester County (610) 344-5000
• Montgomery County (610) 631-6530