How deep is the pipeline buried and what is done to prevent rusting, corrosion and other threats?

The top of natural gas pipelines are required to be installed at least 36” below the ground’s surface when installed. The pipe has a special coating which protects the steel from corrosion and, in addition, a small amount of electrical current is applied to the pipeline to help prevent corrosion. This electrical current is maintained at a very low level that will not harm people or animals in the vicinity of the pipeline. We routinely inspect pipelines from above ground using air, foot, and vehicle patrols to look for potential concerns or encroachments along the right-of-way.