What the Marks Mean
The marks that the different locators have or will be placing on the ground, mean that someone has called in a locate ticket to have the facilities located normally in advance of doing some type of excavation.
The following color code is the APWA Standard for temporary marking of underground facilities:
| Proposed Excavation | |
| Temporary Survey Markings | |
| Electric Power Lines, Cables, Conduit and Lighting Cables | |
| Gas, Oil, Steam, Petroleum or Gaseous Materials | |
| Communications, Alarm or Signal Lines, Cables or Conduit | |
| Potable Water | |
| Reclaimed Water, Irrigation and Slurry Lines | |
| Sewers and Drain Lines |