DEECA
Water corporation

South East Water

In this area

Surface water basin: Bunyip

Groundwater catchment: East Port Phillip Bay, Moe, Westernport

Groundwater GMU: Frankston GMA, Koo Wee Rup WSPA, Nepean GMA

About the area

  • South East Water is one of Melbourne’s three retail water corporations. It obtains treated bulk water from Melbourne Water and operates a single, integrated water supply system covering south-east Melbourne, the Mornington Peninsula and part of South Gippsland.
  • More information on the water corporation can be found at South East WaterExternal Link .

2021-22 overview

Urban deliveries

155,079 ML of urban residential and non-residential deliveries were made in 2021-22, similar to the previous year (149,663 ML in 2020-21).

Wastewater recycled at treatment plants

26% of wastewater was recycled (3,437 ML of 13,474 ML).

Water deliveries

Urban systems

South East Water operates one urban water supply system. Water is sourced from the BunyipExternal Link , GoulburnExternal Link , ThomsonExternal Link and YarraExternal Link basins.

Table 1: Urban system water balance, South East Water

Recycled water

Water recycled at wastewater treatment plants can be used to supplement water available in river basins. Table 2 below lists the wastewater treatment plants managed by South East Water. Water discharged to the environment from treatment plants is included as an inflow to the water balance for each of the river basins.

The Essential Services Commission made some changes to recycled water data categories in 2021-22, so we have not included a comparison to 2020-21 in the table below. Click here to download the data for 2020-21External Link . More information can be found in How we account for water supplyExternal Link .

Table 2: Treated wastewater produced and recycled, South East Water