Utility color codes are used to identify existing underground utilities in construction area, to protect them from damage during the project. Colored lines and flags are used to mark the underground location and the type of utility.
It’s also common for location services to use temporary chalk paint to mark utilities.
Used for potable water.
Used for sewers & drain lines.
Used for communications, alarm, cable TV, signal lines, cables & conduit.
Used for temporary survey markers.
Used for reclaimed water, irrigation & slurry lines.
Used for electric power lines, cables, conduit & lighting cables.
Used for proposed excavation.
Used for gas, oil, steam, petroleum & gaseous materials.