How to detect natural gas

If you smell a rotten-egg-like odor, you could have a gas leak. Natural gas is naturally colorless and odorless. We add an odorant called mercaptan to natural gas, which gives it a distinctive smell, similar to rotten eggs, sulfur or petroleum.

In some cases, you can also identify natural gas by sight or sound. If you see blowing dirt, bubbling water or dead vegetation, or hear a hissing or roaring sound, that could be caused by natural gas.

Follow these tips if you detect natural gas

Stop what you're doing

Stop what you’re doing

Don't smoke or light a match. Don't open the windows. Don’t use anything that could cause a spark, like a phone, light switch, appliance or flashlight. Don’t start your car or use your garage door to leave.

Leave the area

Leave the area immediately

If you're inside, get out immediately. If you're outside, leave the area quickly.

Call us and 911

Call 911 and us

From a safe location, away from the building, call 911 and our emergency number at 1-800-432-9515 and wait for crews to arrive.


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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 1-800-432-9515.