Notify your local one call center by calling 811 or making an online request 2-3 days before work begins.
Wait the required amount of time for affected utility operators to respond to your request.
Confirm that all affected utility operators have responded to your request and marked underground utilities.
Respect the marks.
Dig Carefully around the marks with care.
Check out Call811.com for more information or give them a call at 811.
Check out this video from the Half Moon Bay PG&E teaching the public the importance of dialing 811 before beginning to dig.