The Trans-Alaska Pipeline System (TAPS) includes the trans-Alaska crude-oilpipeline, 11 pump stations, several hundred miles of feeder pipelines, and the Valdez Marine Terminal. TAPS is one of the world’s largest pipeline systems. It is commonly called the Alaska pipeline, trans-Alaska pipeline, or Alyeska pipeline, but those terms technically apply only to the 800 miles (1,287 km) of the pipeline with the diameter…