NYC Construction Color Codes

White: Proposed Excavation

Fluorescent Pink: Temporary Survey Markings

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

Purple: Reclaimed Water, Irrigation and Slurry Lines

Green: Sewers and Drain Lines