Know the Facts
Natural gas and propane in their original state are odorless, we add an organic compound called Mercaptan before the gas is delivered to your community. Mercaptan smells like rotten eggs. This distinctive smell helps alert you to the presence of natural gas or propane escaping in or around your home. The source of a gas odor could be inside your home from a leak in your house line or appliance connection. It could also be outside from leaks in a service or main line that could come into your home through foundation walls or drain lines.
Natural gas pipelines have a proven record of safety. Sometimes, however, pipeline failure can occur. Hazards associated with a pipeline failure and gas release may include blowing gas, line rupture, fire, explosion or, if gas is present in a confined area, possible asphyxiation. Damage by outside force, often by someone digging into a pipeline, is the largest single cause of pipeline failures. Incidents may occur due to corrosion, material failure, equipment failure or other causes.