California One-Call and private locators

Underground Service Alert North
4005 Port Chicago Hwy #100
Concord, CA 94520
833-295-3355

Anyone engaging in excavation activities is required to notify underground facility owners prior to the start of the excavation.

Jump To Private Locators

State Sponsors

Private Utility Locators

GPRS Inc.

Private Utility Locators
- Northern California / San Francisco (415) 553-0129
- Oakland (925) 332-6472
- Sacramento (916) 539-6492
- San Jose (408) 201-4110
- Fresno (559) 240-2933
- Los Angeles (213) 278-4304
- Glendale (818) 813-3614
- Corona (714) 944-3018
- Orange County (949) 441-9394
- Long Beach (562) 665-7267
- Ventura (805) 729-5877
- Riverside County (909) 609-5265
- San Diego (858) 395-1085
- North County (760) 574-0436
- Glendale (818) 813-3614
- Nationwide (866) 914-4718
Website

FAQ

Questions About Private Locates

What utilities are marked by 811 One Call?

The One-Call System does not mark utilities. The One-Call system only notifies participating member utilities. These participating member utilities will not mark private or non-member utilities. The utility locating companies notified will locate and mark only primary public utilities, so it's up to you to keep track of what else is on your own property.

Private Utilities are the buried lines after the meter or main lines. If you have a curbside meter then your property will not get marked by the participating member utility locators. Other buried utilities that generally are not marked include but may not be limited to: sewer lines, private lighting, sprinklers, fire mains, secondary electric lines to detached garages, and septic lines.

No. There will be a service fee for a private locate. The utilites are owned by you and its the owners responsibility to cover the cost to protect private undergound lines.

Underground Service Alert, known as "USA", provides a high quality Underground Facility Damage Prevention service to Central/Northern California. USA's purpose is to receive planned excavation reports from public and private excavators and to transmit those planned excavation reports to all participating members of USA who may have underground facilities at the location of excavation. The USA Members will either mark or stake their facility, provide information or give clearance to dig.