P.O. Box 187
Rapid City, SD 57709
24 / 7
48 hours, excluding weekends and holidays
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: 21 working days from the start date on the ticket so long as the marks are visible
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.