- (a) Yellow—gas, oil, petroleum products, steam, compressed air, compressed gases and all other hazardous liquid or gaseous materials except water.
- (b) Red—electric power lines or conduits.
- (c) Orange—communication lines or cables, including but not limited to telephone, telegraph, fire signals, cable television, civil defense, data systems, electronic controls and other instrumentation.
- (d) Blue—water.
- (e) Green—storm and sanitary sewers including force mains and other nonhazardous materials.
- (f) Purple—radioactive materials, reclaimed water, irrigation and slurry line.
- (g) White—excavation site.
- (h) Pink—survey markings.
The following uniform color code shall be utilized for staking and marking used to designate the location of underground facilities and excavation sites: