Maryland law requires that anyone planning to dig must notify MISS UTILITY at least 48 hours prior to digging (excluding weekends and holidays). A representative will mark underground facilities to protect you against the danger of accidental contact with our wires, gas or electrical equipment.
After MISS UTILITY marks the area, the following colors identify the utility:
| Red | Electric Power Lines, Cables, Conduit and Lighting Cables |
| Yellow | Gas, Oil, Steam, Petroleum or Gaseous Materials |
| Orange | Communication, Alarm or Signal Lines, Cables or Conduit |
| Blue | Potable Water |
| Green | Sewers and Drain Lines |
| Purple | Reclaimed Water, Irrigation and Slurry Lines |
| Pink | Temporary Survey Markings |
| White | Proposed Excavation |
