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Always call 811 well in advance of digging.
The single greatest cause of pipeline accidents is damage from excavation and outside forces. Notify 811 at least two working days (not including the date of your request, weekends and legal holidays) before you excavate or move earth in any way. This free service will notify underground operators to locate buried utilities so you can work safely. Call 811 or use the online ticket entry system at california811.org. Allow utilities the two full working days to mark lines. Before you dig, confirm that all utilities have responded by checking Electronic Positive Response through your one-call center.

Before you call, delineate your excavation area with white paint, flags, or stakes so locators can easily identify and mark affected utilities.

Be aware of pipeline markers that indicate the need for extra care around a high-volume transmission line.
These markers specify the line’s approximate location, but not all pipelines follow a straight path between markers. If your proposed excavation is within 10 feet of a natural gas transmission line 60 PSI or greater, you will be notified that a meeting with PG&E at the job site is required prior to any excavation activities. Call the number on the marker if you notice suspicious activity nearby, or if you see construction-related activity and there are no PG&E personnel present.

811

 

Call 811 at least two working days before digging, so underground utilities can be marked and you can work safely.