About the area
- Wannon Water’s region extends over 23,500 km2 from the South Australian border in the west, to Balmoral in the north, to Lismore in the east and to the lower Gellibrand River catchment on the south coast.
- The City of Warrnambool, Corangamite Shire, Glenelg Shire, Moyne Shire and Southern Grampians Shire local government areas are all within its service area.
- Most of Wannon Water’s supply systems provide for both towns and rural customers and are shown as consolidated systems.
- More information on the water corporation can be found at Wannon .
2021-22 overview
Urban deliveries
11,118 ML of urban residential and non-residential deliveries were made in 2021-22, similar to the previous year (10,477 ML in 2020-21).
Wastewater recycled at treatment plants
17% of wastewater was recycled (1,867 ML of 11,011 ML).
Water deliveries
Combined systems
Wannon Water operates 15 water supply systems, including 4 sourced from surface water, 10 from groundwater and one from both. Water is sourced from the and Otway basins.
Outflows marked as 'pipeline' typically represent rural customers.
Table 1: Combined system water balance, Wannon 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 Wannon 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 .
