UNDERGROUND SERVICE ALERT OF SOUTHERN CALIFORNIA - 811
Address
P.O. Box 77070
Corona , California 92877-0102 (Mailing)
Site Hours
Contact center hours are, Monday through Friday, 6:00am to 7:00pm.
Monday : 6:00 AM - 7:00 PM
Tuesday : 6:00 AM - 7:00 PM
Wednesday : 6:00 AM - 7:00 PM
Thursday : 6:00 AM - 7:00 PM
Friday : 6:00 AM - 7:00 PM
|
Service/Intake (Nationwide) |
811
|
|
Service/Intake (Toll Free) |
+18004224133
|