A NSW Government website

Regional projects

Macquarie-Wambuul Water Security Project

Supporting sustainability outcomes whilst delivering improved water security and resource management within the Macquarie Valley.

Macquarie Marshes.
Important information

The Macquarie River Re-regulating Storage Project has been renamed the Macquarie-Wambuul Water Security Project.

About the project

To address risks to water security and reliability, and contribute towards a healthy river environment, the Macquarie-Wambuul Water Security Project (formerly the Macquarie River Re-regulating Storage Project) is investigating a range of infrastructure and non-infrastructure options to support sustainable water management for communities along the Macquarie-Wambuul River. Water Infrastructure NSW is committed to delivering this important water infrastructure project and is currently developing a final business case to ensure the project delivers maximum benefits to the community, while minimising impacts to the environment and reducing costs for taxpayers. A focus is being placed on the need to get it right from the outset so we can deliver the best outcomes for communities.

The project is considering a range of alternative and complementary options supporting sustainability outcomes and delivering improved water security and resource management within the Macquarie Valley.

The final business case will be developed to align with relevant regional water strategies.


In 2022, the Australian Government announced additional funding to support the development of the final business case as part of the Mid-year Economic and Fiscal Outlook.

Stakeholder engagement

Water Infrastructure NSW is committed to building and maintaining respectful, trusted and collaborative relationships with relevant communities and stakeholders to ensure this proposed water infrastructure project achieves the best possible outcomes.

We believe in engagement with real, tangible and practical outcomes enabling our communities to work in partnership to deliver projects realising a wide range of benefits with minimal disruption.

We will provide ample opportunities for local communities and stakeholders, including Traditional Owners and First Nations communities, to have their say on the project as it progresses.

Upcoming public engagement opportunities will be highlighted on this project webpage and on the Water Group’s stakeholder engagement page.

Contact us

If you have any questions or need more information about the project or the project activities email us MWWSP@dpie.nsw.gov.au or call 1300 081 047.