From the city of San Clemente:
San Onofre Nuclear Generating Station (SONGS) will conduct quarterly growl testing of the San Clemente community alert sirens during normal working hours from May 15 through June 4.
A siren “growl” is a short (less than 20 seconds) blast from a single siren. The public should not be alarmed as this is only a test.
Growl testing is required by regulators and is performed quarterly for the sirens within the Emergency Planning Zone. The sirens in our neighboring communities will also undergo growl testing this month. These sirens can sometimes be audible within the boundaries of San Clemente.
The public should not be alarmed as this is only a test. During a real emergency, sirens would be turned on for a full three-minute blast.
For more information, call the City of San Clemente’s Emergency Planning staff at 949-361-6109 or 949-361-6145.