About the area
- Greater Western Water was formed from the integration of Western Water and City West Water on 1 July 2021.
- Greater Western Water’s service area covers 3,700 km2, extending from Melbourne’s CBD to Werribee, Bacchus Marsh and the Macedon Ranges.
- Greater Western Water services are provided to over 597,000 customers via 3 separate water supply systems.
- More information on the water corporation can be found at Greater Western .
2021-22 overview
Urban deliveries
117,842 ML of urban residential and non-residential deliveries were made in 2021-22, similar to the previous year (118,259 ML in 2020-21).
Wastewater recycled at treatment plants
35% of wastewater was recycled (5,862 ML of 16,791 ML).
Water deliveries
Table 1: Urban system water balance, Greater Western 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 Greater Western 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 . Information about the changes to the data for 2021-22 has been detailed in the How we account for water supply on the How do we account for water? page.
More information can be found in How we account for water .
