How to Recognize Where a Pipeline Is
Many buried pipelines used in the transportation of petroleum products and natural gas are identified by above ground pipeline markers. Some pipelines transport other hazardous products such as chemicals, highly volatile liquids, and anhydrous ammonia, or carbon dioxide. Pipeline markers are located along certain pipeline routes that identify the approximate location of the pipeline.
Every pipeline marker provides critical information to the general public and emergency responders such as the company that operates the pipeline, product transported, and a phone number that should be called in the event of an emergency. Markers may be seen where a pipeline intersects a street, highway, or railway.