Call Before You Dig

The Ohio Utilities Protection Service (OUPS) provides a state-of-the-art call center that operates 24 hours a day, seven days a week, to answer calls from anyone who intends to dig in the State of Ohio. Call 800-362-2764 before you dig.

Color Codes

The American Public Works Association encourages public agencies, utilities, contractors, other associations, manufacturers, and all others involved in excavation to adopt the ULCC Uniform Color Code using ANSI standard Z53.1 safety colors.

Blue                Potable water

Green             Drain lines, Sewers

Orange           Communication, alarm or signal lines cables or conduit

Pink                Temporary survey markings

Purple             Irrigation and slurry lines, Reclaimed water

Red                 Cables, Conduit and lighting cables, Electric power lines

White              Proposed excavating

Yellow            Gas, Gaseous materials, Oil, Petroleum and Steam