811 is a free one-call service managed by USA North. Call 811 at least two business days before your planned digging project. USA North will contact PG&E and other utilities. Representatives of these utilities will then come out to locate and mark their underground lines.
Steps to Take Before You Dig
- Identify and mark the digging area with a white substance such as chalk, spray paint, flour or marking whiskers, tags, stakes or any combination.
- Call 811 at least two business days before you dig. Contractors are required by California state law to call.
- We use colored utility flags, stakes or paint to mark underground lines, following the American Public Works Association Uniform Color Code. Please leave the marks in place until you are finished digging.
- Use handheld digging tools when digging within 24 inches of the outside edge of any underground lines. After finishing your project, carefully backfill and compact the soil.