If you suspect a gas leak inside your home or business and cannot shut off the gas, immediately evacuate the area and contact 911. Common signs of a gas leak include:
Odor of rotten eggs. The nose knows.
An unusual hissing or blowing noise from a gas appliance, the ground or exposed gas piping.
Flames near exposed piping or coming from the ground. Appliance flames that are behaving in an unusual way.
Constant and localized blowing of dirt, dust or debris.
Rapid bubbling at the surface of a body of water such as a puddle.
Unusual brown, dying or dead vegetation in otherwise moist areas over or near pipeline areas as well as unusual soil movement.
A sudden and unexplained increase in gas consumption on your gas bill.
Damaged connections to gas appliances.
Exposed pipeline after an earthquake, fire, flood or other disaster.