In use in potable water applications since the 1970s, high-density polyethylene (HDPE) pipe has become the ideal material for piping systems used to transport drinking water. As a tough and resilient material capable of lasting 100 years or more with minimal maintenance, HDPE pipe has proven to be superior to many other piping materials as a means transporting and distributing potable water. HDPE pipes long service life and low maintenance costs, coupled with its ability to be installed with a variety of trench-less technologies leads to HDPE pipe having the lowest life cycle costs of any potable water piping system.