(1) For this Act, a "water network" consists of the infrastructure mentioned in subsection (2) used, or for use, in relation to any of the following purposes:
(a) the collection and treatment of water for distribution by a person to premises of another person;
(b) the distribution of water by a person for supply to premises of another person.
(2) For subsection (1), the infrastructure consists of the following:
(a) water storages, mains and treatment plants;
(b) pumps, facilities and equipment for distributing water, or monitoring or controlling the distribution of water;
(c) pipes or equipment;
(d) any other thing ancillary to any other part of the infrastructure.
(3) A "water network" does not include infrastructure that is outside the network boundary.