Atherton's emergency warning system for the Walsh Road neighborhood was scheduled to be tested on Monday morning, Jan. 5, at 9 a.m., Atherton police said.
The siren, which is at the California Water Service Company facility on Reservoir Road, is designed to warn area residents to evacuate, according to the Atherton Resident Handbook prepared by the town.
If the siren has an intermittent tone, it is warning of a breach in the reservoir's dam. If the tone is continuous it is warning of a fire.
There are three emergency evacuation routes from the neighborhood:
● Walsh Road to Alameda.
● Through the water company property connecting to Moore Road. In an emergency, the water company should open the gate.
● Pedestrians may exit by using the horse tunnel under Interstate 280.