The plant treats sewage using a series of large ponds, called lagoons - producing 40 billion litres of recycled water each year.

There are a number of physical factors that will affect the design of the drain which should be considered.

These guidelines have been prepared to simplify and standardise application and computation of floodway safety requirements in the greater Melbourne region.

Stormwater connections can have many and diverse impacts on waterway health.

The hydrologic and hydraulic design requirements for drainage systems are described.

The use of easements and reserves to protect our assets will be influenced by the type of asset, long term statutory responsibilities, implied rights and required control over use of the land.

For public safety the need for fencing of all structures should be considered. For example, all inlet and outlet structures in the proposed system will require fencing.

This section details the maintenance requirements for underground drains and channels.

The manual outlines our requirements for best practice waterway design to help professionals working in the land development industry who design, construct and establish waterways in new urban developments.

The manual outlines our requirements for best practice constructed wetland design, to support consistent delivery of high-quality constructed wetlands across the Port Phillip and Westernport region.