Project goal:

Installing a new 3.8km section of a below ground treated wastewater pipeline and a transition tower at Point Peron Wastewater Treatment Plant to cater for expected growth and increase in wastewater flows.


Pipeline construction complete. Reinstatement underway.

Delivery date:

March 2021

What's happening?

We’re installing a new 3.8km treated wastewater pipeline next to an existing pipeline in the City of Rockingham.

The pipeline, referred to as the Sepia Depression Ocean Outlet Landline (SDOOL), transports treated water from several wastewater treatment plants in the metropolitan area and other industries to the ocean outfall offshore from Point Peron.

Where is this happening?

We have now completed the pipeline installation from Ritchie Drive in Rockingham to the Water Corporation wastewater treatment site on Point Peron Road.

Map of pipeline route


Why is this work taking place?

Upgrading the wastewater infrastructure caters for population growth and increases the volume of wastewater that can be transferred.

When is this happening?

Construction is now complete and reinstatement has begun. This is expected to be completed by March 2021.

How will this impact the community?

Access to areas along the pipeline route are temporarily restricted for public safety including parts of the Lake Richmond walking track and picnic area and Bayview Reserve. 

We recognise the key environmental values associated with Lake Richmond and Bush Forever sites along the pipeline route and have implemented a Construction Environmental Management Framework and associated management plans to minimise impacts to the environment.

For parkland areas, we have worked with the City of Rockingham on a plan to rehabilitate the area, which is now underway.

How do I stay up to date on the project?

For further information and updates as the project progresses please visit our Treated Wastewater Pipeline Duplication in Rockingham page.

Contact us

Amy Wright - Community Engagement Senior Advisor

Phone icon 9420 2130

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