Multi-Criteria Analysis Outcome

On Tuesday 31 January 2023 Northern Water Supply project team together with a range of stakeholders met to undertake the second of two Multi-Criteria Analysis (MCA) workshops. The group was led though a scoring process by independent consultants. The included criteria was developed with the combined group in the first MCA workshop in December 2022. Stakeholders representing environmental conservation, marine and fishing industry, local Government, landscape boards and regional development participated in both MCA workshops.

The Mullaquana site received the highest score in the MCA process followed by Point Lowly with Crag Point being the lowest scoring site across most sensitivity scenarios. This means Mullaquana was found to be the best performing site of the three considered when scored against the MCA criteria. This will be documented in the business case. Other factors such as more detailed engineering, cost and commercial considerations will be developed to help inform the government’s decision on whether to further progress the Northern Water Supply project beyond the current phase and if so on which site.

We are now seeking community feedback on the outcome of the MCA workshop. The MCA result along with community feedback on the outcome will be presented to the South Australian Government as part of the NWS - Business Case in March 2023.

We encourage you to provide feedback about the MCA outcome either by completing the Short Survey here or by emailing the project team directly at

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