Retired natural gas and liquids pipelines are full of product that will contaminate the ground

If a pipeline is left in the ground, it has to be properly purged and cleaned before retirement.

There are a couple of options for retiring a pipeline. Companies can leave the pipe in place, remove sections of the pipeline or completely remove the pipeline. However, in most cases it is safe, less disruptive to the environment and more cost-effective to leave a pipeline in place.