Wannon WaterWannon Water is Victoria's second largest regional urban water corporation by service area. It delivers water, sewerage, recycled water and trade waste services to over 100,000 residents and more than 4,000 businesses. It also supplies non-drinkable water for use on over 1,000 rural properties.

Wannon Water’s customers are spread over an area of 23,500 square kilometres in south-west Victoria. Its service area extends from the South Australian border in the west to Lismore in the east, and from Victoria’s south coast to Balmoral in the north.

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23,500 km2

Service Area

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Population Served

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89% residential
Urban Customers

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10.5b litres

50% residential
Drinking Water Supplied

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Annual Revenue

In addition to the urban water customers shown above, Wannon Water also has 1,771 rural water customers.

Want to know more? View the data for all 18 water corporations

Aboriginal acknowledgement

Wannon Water encourages and promotes diversity, fairness and respect for everyone and acknowledges that Aboriginal and Torres Strait Islanders are Australia’s first people and the traditional owners and custodians of the land and the water on which we rely.

Service area

Local government areas served by Wannon Water include:

  • Corangamite
  • Colac Otway
  • Glenelg
  • Moyne
  • Southern Grampians
  • Warrnambool

Stylised map of service area, for more information contact Wannon Water 1300 926 666

Note: This map is indicative only. Please contact Wannon Water for more accurate and up-to-date service area information. You can also use our interactive map to find out whether your location is serviced by Wannon Water.

Water sources

Wannon Water supplies water from a diverse range of water sources, including surface water catchments, deep geothermal aquifers and shallow groundwater aquifers. Its water systems include the Otway, Grampians, Balmoral and Glenthompson systems, along with a range of systems sourced from the deep Dilwyn Aquifer and various shallow aquifers.

More detailed information about water sources can be found in Wannon Water’s latest Annual Water Quality Report.

Assets at a glance

Wannon Water operates and maintains a range of assets, including the following water and sewerage infrastructure.

water storages
filtration plants
diversion weirs
disinfection treatment plants
sewage treatment plants
recycled water plants
pumping stations
km of sewer mains
km of sewer mains

Board of Directors

The Board of Directors is responsible for Wannon Water’s strategic planning and is accountable to the Minister for Water for the corporation’s performance. The Board is supported and advised by the Executive, who oversee the corporation’s day-to-day management.

Find out more about Wannon Water’s Board of Directors and how they are appointed.

More information

Website: www.wannonwater.com.au

Address: 25 Gateway Rd, Warrnambool VIC 3280

Postal: PO Box 1158, Warrnambool VIC 3280

Phone: 1300 926 666

Email: info@wannonwater.com.au

The information on this page was sourced from Wannon Water’s 2017-18 Annual Report and Wannon Water’s website as at October 2018.

Page last updated: 19/10/22