UNCC acts as a communication center between excavators and underground facility operators by notifying the city utility for water and sewer line locations as well as the appropriate companies for gas and electric, phone and cable. They will also advise you if you need to contact anyone else.
Unless it's an emergency situation, you must allow 48 hours response time
| Flag Color Codes | |
| White | Proposed Excavation |
| Red | Electric |
| Yellow | Gas-Oil-Steam |
| Orange | Communication, CATV |
| Blue | Water |
| Green | Sewer |
| Pink | Temporary Survey |
After calling 811, crews will come by and mark the ground with flags like these, showing where infrastructure lines are underneath.