Recognizing/Responding to a Leak

How Do I Recognize a Pipeline Leak?

Natural gas is a flammable, colorless, odorless, lighter-than-air, non-toxic substance. Since natural gas is odorless, sometimes local utilities add an odorant to help consumers smell gas should a leak occur. However, odorant is added at only certain places along the pipeline. It is important to remember that you may not always be able to detect a gas leak by smell.

The following signs can be an indication of a natural gas pipeline leak:

• Dust, water or vegetation blowing around a pipeline
• Discolored or dead vegetation near a pipeline
• A blowing or hissing sound caused by escaping gas
• Bubbling in a wet area
Flames, if the leak has ignited
• An unusual smell or gaseous odor

If you become aware of a leak, notify the pipeline company immediately. Emergency phone numbers are listed on all pipeline markers.

What To Do if a Leak Occurs

• Leave the area immediately on foot and warn others to stay away.
• Abandon any equipment being used in or near the area.
• Avoid any open flame or other sources of ignition.
• Call 911 or local law enforcement.
• Notify the pipeline company immediately.
• Do not attempt to extinguish a natural gas fire, and do not attempt to operate pipeline valves.