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Gisborne Recycled Water Plant Upgrade

We’ve been progressing the design for the Gisborne Recycled Water Plant following approval of the Business Case in late 2020.

Greater Western Water has improved the design and enhanced the treatment process for the Gisborne RWP Upgrade. This will result in further improvements to the quality of the recycled water the plant will produce.


The plant treats sewage from Gisborne, New Gisborne, Macedon and Mount Macedon. The upgrade will allow Greater Western Water to meet demand from the growing population, improve recycled water quality & reduce energy consumption.

Gisborne RWP Upgrade Project Timeline. 2020 - Community input & early works. 2021 - Detailed design, construction commences. 2022 to 23 - Construction & testing phase. 2024 - Upgrade full operational

Detailed investigation identified upgrading the plant on the existing site as the best option for managing local demand for wastewater services through to 2035.

Update - June 2021

EPA Works Approval Process

A Works Approval Application has been submitted to the EPA which is required prior to commencing design and construction on the upgrade. As part of the works approval process, the EPA will get in touch with key stakeholders to discuss the upgrade. They’ll also advertise the proposed works on the Engage Victoria website and in the local paper to provide an opportunity for comment.

When the EPA assesses works approvals, they generally review key environmental emissions including odour and noise, as well as treatment processes and recycled water quality to confirm the upgraded recycled water plant will comply with the relevant environmental policies.

Next steps

We’ll continue to engage with stakeholders (including Council, Government, EPA, waterways and environment groups and traditional owners) and local residents to ensure the upgrade delivers the best outcomes for the community and environment.

We’ve commenced early works on the project and cultural heritage studies are underway. Our next steps are to undertake detailed design including environmental approvals.

The contract to design and build the plant upgrade will commence once the EPA Works Approval process has been completed. We’re hoping to start the detailed design of the plant in late 2021 and for construction to commence early to mid-2022.

We’ll continue to keep you updated as the project develops.

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