How does the use of HDPE pipe save money for a utility?

HDPE pipe provides the lowest life cycle cost when compared to other systems due to significantly reduced or no leakage, increased billable dollars, water conservation, fewer new water-treatment plants, reduced maintenance crews, reduced seasonal water-main breaks, and no loss in flow capacity over the long term. Refer to paper by CSIRO, Life Cycle Analysis of Water Networks, presented at Plastics Pipe XIV, Budapest, 2008.