Water Assets Strategic Review

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Latest Update - Further engagement on water assets following community feedback

City of Onkaparinga has committed to further due diligence and engagement on the future of its water assets to address matters raised by the community.

  • Read the full Media Release here
  • Read the full community engagement report here


Background Information

Following a Registration of Interest process and community consultation in 2018, council has received proposals to reveal whether or not management of our water assets can be improved, either through sale or a different management model under continued council ownership.

The City of Onkaparinga currently owns and operates two licensed water utilities:

  • a Community Wastewater Management Scheme (CWMS)
  • a Water Business Unit (WBU) that captures and stores recycled and stormwater for resale to local businesses

Most metropolitan councils do not manage wastewater, however in Onkaparinga we currently service several areas that do not have access to SA Water's wastewater network. The CWMS is an essential public and trade waste service provided to around 4500 households and businesses, mainly in the rural or township parts of the city.

We also provide recycled water for the irrigation of public spaces. The WBU assets harvest recycled water and stormwater which can then be pumped to irrigate ovals, parks and open spaces. These assets provide a sustainable alternative to mains water supply.

A significant investment is required to maintain and improve the operation of our stormwater recycling assets, and any future expansion of the network for the CWMS.

Click on the images below to learn more about our water assets:



Latest Update - Further engagement on water assets following community feedback

City of Onkaparinga has committed to further due diligence and engagement on the future of its water assets to address matters raised by the community.

  • Read the full Media Release here
  • Read the full community engagement report here


Background Information

Following a Registration of Interest process and community consultation in 2018, council has received proposals to reveal whether or not management of our water assets can be improved, either through sale or a different management model under continued council ownership.

The City of Onkaparinga currently owns and operates two licensed water utilities:

  • a Community Wastewater Management Scheme (CWMS)
  • a Water Business Unit (WBU) that captures and stores recycled and stormwater for resale to local businesses

Most metropolitan councils do not manage wastewater, however in Onkaparinga we currently service several areas that do not have access to SA Water's wastewater network. The CWMS is an essential public and trade waste service provided to around 4500 households and businesses, mainly in the rural or township parts of the city.

We also provide recycled water for the irrigation of public spaces. The WBU assets harvest recycled water and stormwater which can then be pumped to irrigate ovals, parks and open spaces. These assets provide a sustainable alternative to mains water supply.

A significant investment is required to maintain and improve the operation of our stormwater recycling assets, and any future expansion of the network for the CWMS.

Click on the images below to learn more about our water assets:


  • Previous Updates

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    We recently sought feedback from the community about council's water assets

    We thank everyone who provided feedback and we'll report back after council's August meeting to advise the next steps.

    The City of Onkaparinga currently owns and operates two licensed water utilities:

    • a Community Wastewater Management Scheme (CWMS)
    • a Water Business Unit (WBU) that captures and stores recycled and stormwater for resale to local businesses

    Most metropolitan councils do not manage wastewater, however in Onkaparinga we currently service several areas that do not have access to SA Water's wastewater network. The CWMS is an essential public and trade waste service provided to around 4500 households and businesses, mainly in the rural or township parts of the city.

    We also provide recycled water for the irrigation of public spaces. The WBU assets harvest recycled water and stormwater which can then be pumped to irrigate ovals, parks and open spaces. These assets provide a sustainable alternative to mains water supply.

    A significant investment is required to maintain and improve the operation of our stormwater recycling assets, and any future expansion of the network for the CWMS.

    As a result, council is seeking feedback from the community about the future management of council's water assets.

    Future price, service, and operating performance for the council and ratepayers are all important, as are risk, environmental and water security considerations. Any final recommendation to Council will ensure those requirements are fully satisfied.

    Consultation ran from 14 June to 13 July 2022.

Page last updated: 25 Aug 2022, 11:21 AM