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TasWater commenced operating on 1 July, 2013 and was formed through the amalgamation of the three Tasmanian Water and Sewerage Corporations namely:

  • Ben Lomond Water
  • Cradle Mountain Water
  • Southern Water, and their service firm;
  • Onstream

Tas Water own and operate the water and sewage infrastructure and provide water and sewerage services to the property connection points.


These four Corporations were formed in late 2008 as a result of significant reform of Tasmania's water industry, and commenced trading on 1 July, 2009. The three Regional Corporations (Ben Lomond Water, Cradle Mountain Water and Southern Water) were owned by local government councils within their respective regions. As the shared services business, Onstream was owned by the three Regional Corporations. On commencement, the three Regional Corporations managed the transfer of some $2 Billion in water and sewerage assets from the previous ownership by 29 councils, three bulk water authorities and some state government agencies with the transfer of some 615 staff.

The move to a single corporation

In September 2011, the Board Chairman initiated discussions with owner councils about the potential benefits that could ensue from a single statewide water and sewerage corporation. After a series of reviews, council owners in all regions agreed to move to a single corporation that merged the current four corporations.

Specific governance arrangements were agreed that are now largely incorporated in the Water and Sewerage Corporation Act 2012 (Tas), the new constitution and the new Shareholders' Letter of Expectation. The new corporation was registered as a proprietary limited company under Corporations Act 2001 (Cth) on 5 February, 2013.

Contact TasWater

For any TasWater enquiries please contact them via the following channels.

Telephone 13 6992
Web Taswater
Fax 1300 862 066
Postal address GPO Box 1393 Hobart Tas 7001
If you are calling from outside Australia, please call +61 3 6237 8378