Malabar System Investment Program

Where work is happening

Projects under the Malabar System Investment Program include:

• Upgrades at Fairfield Wet Weather Treatment Plant
• Upgrades at Liverpool Water Resource Recovery Facility, including construction of a new Advanced Water Treatment Plant
• Upgrades at Glenfield Water Resource Recovery Facility
• Investigations and planning for future infrastructure projects.

Network‑wide supporting works

As upgrades are delivered at treatment facilities, supporting works may also be undertaken across the network. These could include new or upgraded pipelines connecting facilities, odour control systems, and other infrastructure needed to support the overall network.

Liverpool Water Cycle Management Project

This project is currently in the early planning stages. Investigations and environmental assessments are underway to help inform a future Review of Environmental Factors, which is expected to be prepared in mid to late 2027.

The project is exploring options to safely treat wastewater using advanced treatment processes before releasing it to the Georges River. The aim is to support the long-term performance and resilience of the wastewater system while continuing to protect river health.

This project forms part of broader investment in Sydney's wastewater network to support a growing population and improve how wastewater is managed across Greater Sydney.

For more information about the Liverpool Water Cycle Management Project, see the fact sheet below.

Why these upgrades are important

Upgrading the Malabar wastewater system will help:

• increase wastewater treatment capacity to support housing and population growth
• improve reliability across the network to reduce breakdowns, overflows and pressure on ageing infrastructure
• reduce environmental impacts by improving the quality of treated water released to the environment
• reduce odour for surrounding communities through upgraded odour control systems at key network sites
• increase resilience to extreme rainfall and climate impacts ensuring the system can better manage wet weather flows
• improve operational efficiency by enabling better system monitoring, automation and real time management.

These improvements will help ensure Sydney’s wastewater system continues to safely support our growing communities.

What happens next

Projects across the Malabar System Investment Program are at different stages of planning, assessment and delivery.

As projects progress, Sydney Water will continue to keep communities informed about upcoming investigations, environmental assessments, construction activities and key project milestones.

Subscribe for updates to stay informed about project progress, upcoming activities and opportunities to learn more.