COLOR-CODED UTILITY LOCATION FLAGS

Utility location flags are color-coded to identify existing underground utilities in construction areas

COLOR	UTILITY
ORANGE	Telecommunications, alarm or signal lines, cables or conduit
YELLOW	Natural gas, oil, steam, petroleum or other gaseous or flammable material
WHITE	Proposed excavation limits or route
RED	Electric power lines, cables, conduit and lighting cables
PURPLE	Reclaimed water, irrigation and slurry lines
BLUE	Drinking water
PINK	Temporary survey markings, unknown/unidentified facilities