During construction, when working in or near an area containing underground gas facilities, be alert to the following signs of potential hazard:
Natural gas odor in or near your excavation site. To make it easier to recognize natural gas, a rotten egg odor is added. However, some natural gas pipelines in Michigan do not carry odorized gas.
Apparent or non-apparent damage to pipes that have been broken pulled, dislodged or gouged.
Brown patches in vegetation on or near a right-of-way.
Dry spots in moist earth.
Evidence of blowing (gas) noise, blowing dirt or bubbling mud or water.
Fire coming from the ground or burning above the ground.
Notify the gas utility owner if any of the above are observed.