Recognizing Gas LeaksDig Safely Home< BackNext >


Natural gas utilities add a distinctive, sulfur-like odor to natural gas to help people detect leaks.
However, in some cases you may not be able to smell this odor. And gas in transmission pipelines may not be odorized.

Do not rely on your nose alone to detect a gas leak.
Use your senses of sight and hearing as well. Here are the signs:

  • A hissing, whistling or roaring sound as gas escapes from a pipe
  • Dirt blowing into the air from a hole in the ground
  • Continuous bubbling in water
  • A damaged connection to a gas appliance
  • Exposed pipeline after a fire, flood or other disaster


Use your senses of smell, sight and hearing to detect natural gas leaks.