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Stop Leave Call

Natural gas is colorless and odorless. An odorant called mercaptan is added to natural gas to give it a distinctive smell, similar to rotten eggs.

You can use your senses to detect natural gas:

  • Smell – Smelling rotten eggs, sulfur or petroleum
  • See – Blowing dirt, bubbling water or dead vegetation
  • Hear – Hearing a hissing, roaring or whistling sound

If you smell, see or hear natural gas, you may have a natural gas leak.

If you suspect a leak, STOP, LEAVE and CALL:

  • Stop what you’re doing – Don't light a match or candle or operate anything that could cause a spark, including phones, lights, appliances, doorbells, flashlights, power tools and garage door openers. Don't open the windows and doors in an attempt to ventilate the building. Don’t try to find the leak yourself or operate pipeline valves.
  • Leave the area immediately – If you're inside, get out immediately. If you're outside, leave the area quickly.
  • Call 911 and Columbia Gas – From a safe location, away from the building, call 911 and Columbia Gas at 1-888-460-4332 and wait for crews to arrive.
For more natural gas safety information to help keep you and your family safe, visit the Stay Safe section of our website, which also include these valuable topics: Keeping You Safe and Digging and Line Safety.

Have an emergency?

If you smell gas, think you have a gas leak, have carbon monoxide symptoms or have some other emergency situation, go outside and call 911 and then call us at 1-888-460-4332.