HOW TO RECOGNIZE A 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 pool of liquid on the ground
A rainbow sheen on water
A dense white cloud or fog over 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