The natural gas, water, sewer and sometimes electric, telephone and cable TV lines serving your neighborhood may run underground.

So digging on your property without locating and marking utility lines first can lead to interrupted service, leaks and even a fire or explosion that can put your life in danger.

Before you dig, call Call 811 Chicago at 811 at least 48 hours in advance. Peoples Gas service technicians will come to your home at no charge to mark the buried utilities on your property so that they will not be cut or damaged by you or your contractors. It's one phone call that can save time, money and your life. It's also the law.

For Chicago locations: Call 811 Chicago at 811
For locations outside the city: Call JULIE at 811, or 800-892-0123

Above-ground markers

You'll know what's below by the different flags, stakes or paint. Identify these marks before you excavate.

  • Electric
  • Gas, oil or petroleum
  • Communications
  • Potable water
  • Reclaimed water, irrigation
  • Sewer
  • Proposed excavation
  • Temporary survey

Chief, our 2019 Doggone it! photo contest winner, will remind customers to call 811.

Chief is a 5-year-old rescue dog who won this year’s "Doggone it! Call 811 before you dig" contest. Peoples Gas customers submitted photos of their dogs digging in their yards, and the public voted to determine our 2019 safety "ambassadog."

Look for Chief on safe digging promotional and advertising materials throughout the year.

Chief, our 2019 Doggone it photo contest winner Pictured here: Chief, Peoples Gas employees, along with out partners from 811 Chicago and CDOT

On Aug. 11, National 811 day, Chief joined Peoples Gas employees along with our partners from 811 Chicago and CDOT to encourage customers to call 811 before they dig.


WEC Energy Group