San Luis Obispo County and Pacific Gas & Electric (PG&E) will continue conducting annual maintenance on the Early Warning System sirens on Monday.
In a press release sent to KSBY, officials with the County Office of Emergency Services says each of the 131 sirens will be inspected and tested individually to ensure the system is ready in the event an emergency occurs.
Officials say after inspection, each siren will sound a brief growl test, which is expected to last for a period of a few seconds.
"Although the public in close vicinity to the siren may hear a brief siren sound, no action is required on the part of the public," said officials.
The County Office of Emergency Services says the annual siren maintenance will be conducted from 8 a.m. to 4 p.m. on weekdays through July. Crews will work on sirens in the See Canyon area throughout April, followed by Arroyo Grande and Oceano.
Officials say if community members hear a siren continue to sound, they should tune in to a local radio or television station for emergency information and instructions. In the event of an emergency, the sirens will be sounded for three minutes.
Questions about the siren tests can be directed to the County Office of Emergency Services at 805-781-5011.