Water provided by one of the three Scottish public water authorities.

Either a community or non-community water system which provides piped water to the public for human consumption, if the system has at least five service connections or serves an average of at least 25 individuals daily at least 60 days out of the year. The term includes: (1) collection treatment storage and distribution facilities under control of the supplier, and (2) collection or pretreatment storage facilities not under such control.

any system that pipes water to at least 25 people or 15 connections for a minimum of 60 days per year.