Riverstone and Rouse Hill - Growth

In 2022 we publicly displayed a Review of Environmental Factors (REF) outlining our plans, including to build a pipeline.

We had originally planned to build a new pipeline to transfer partially treated wastewater from Castle Hill WRRF to Rouse Hill WRRF, and from Rouse Hill WRRF to Riverstone WRRF for further treatment.

Sydney Water and the NWHA have refined these plans and have made some changes to the proposed designs. Most of these won’t have a substantial change in how the project impacts the community. One of the key changes is that we are now proposing to use a more efficient process called carbonisation to treat and reuse biosolids (a by-product of the current treatment process) at Riverstone WRRF.

Using this new technology means we won’t need to build the new pipeline to connect the Castle Hill, Rouse Hill and Riverstone WRRFs.

To provide the community with more detail on the proposed changes, a Review of Environmental Factors

Addendum (REFA) has been prepared and will be on public display from 17 June 2024 until 9 July 2024 – to learn more, visit the page[FT1] .

Key dates:

17 June to 9 July 2024 Review of Environmental Factors Addendum

July 2024: Site mobilisation and early work to start

Late 2024: Growth Upgrade construction starts