Water Act 1989

An Authority other than Melbourne Water Corporation has the following functions—

to provide, operate and protect drainage systems, including the drainage of water into all designated waterways and all designated land or works within its district;

to develop and implement programs for the protection and enhancement of instream uses;

to investigate, promote and conduct research into any matter related to its functions, powers and duties in relation to drainage;

to educate the public about any aspect of drainage.

Melbourne Water Corporation has the following functions—

to provide, manage, operate, protect and maintain drainage systems into all designated waterways and all designated land and works within its waterway management district;

to develop and implement plans or schemes, and to take any action necessary—

to bring into operation new drainage systems; and

to improve stormwater quality of water in drainage systems;

the functions set out in subsection (1) (c) and (d).

An Authority must perform its functions in an environmentally sound way.