Utility owners have 2 working days to respond to a utility marking request. The Blue Stake agent will provide the marking due date to the requester at the time of the call. Utility companies are required to respond to every request received. Utility owners will mark only what they own and maintain; typically this means they will mark only to their meter. Anything beyond the meter is customer owned and maintained, and may not be marked by the utility company.
International Color Coding System
Utility Companies are required to use the following International Color Coding system for identifying underground lines.
Electric power distribution and transmission
Gas distribution and transmission, oil product distribution and transmission, dangerous materials, product lines
High Visibility Safety Yellow
Telephone and telegraph system, cable television safety
Fiber optics communication lines (the letter "F" in safety)