810 Dutch Square Blvd.
Columbia, SC 29210
M - F 0730 - 1730
No less than 3 working days and no more than 10 working days
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
Marks Valid: 15 working days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.