Westchestergov.com Keeping Safe

Sirens

Sirens

Understand what it means when the sirens sound at Indian Point and how you can find out if they are sounding for an emergency or are being tested.

Who is responsible to sound sirens in the event of an emergency?
Each county’s emergency management office or “Warning Point” will sound the sirens in case of an emergency at Indian Point. This is the signal for the public to tune in to their local Emergency Alert System (EAS) radio or television station. Each county government decides when to sound the sirens, and efforts are coordinated among the four counties.

What happens if a siren doesn’t work when it is sounded?
In the unlikely event that a siren does not work, each county’s emergency workers are trained and prepared to use alternate means.  This may include automated telephone callouts or route alerting by local police.

Who do I call to verify if the sirens being sounded are for a test or an emergency?
Please do not call your county's Emergency Management Office; rather, wait to see how long the siren sounds. The siren system within ten miles of Indian Point is tested periodically. If you hear a siren that sounds continuously for four minutes, tune to WHUD 100.7 FM on your radio and/or monitor your television for an EAS broadcast.

What is the coverage area for a siren?
Siren locations were selected to provide sound levels exceeding 70 dB in areas where the population density exceeds 2000 people per square mile and 60 dB in other inhabited areas. The coverage area for more than 60 dB is between 6.4 and 8.2 square miles. The coverage area for more than 70 dB is between 2.5 and 3.9 square miles. These levels compare with normal conversation (60 dB) and somewhat less than a ringing telephone (80 dB).