Colors used by utilities are standardized, said Larry Brooks of Progress Energy.

According to Brooks:

• Red indicates electric power lines, cables, conduits and lighting cables.

• Yellow is for gas, oil, steam, petroleum or gaseous material.

• Orange indicates communication lines and cable TV, alarm or signal lines or conduits.

• Blue means potable water.

• Green is for sewer or drain lines.

• White denotes proposed excavation.

• Pink indicates temporary survey markings.

• Purple is for reclaimed water, irrigation or slurry lines.

“Call 811 before you dig,” Brooks said.

To view the N.C. One Call Center website color code chart, click here.

Date posted: September 16, 2010

User-contributed question by:
Jake