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$3bn Plan to Fix Sydney’s Mystery ‘Poo Balls’

Sydney Water’s $3 billion upgrade aims to prevent fatberg debris, reduce wastewater discharge, and support hundreds of thousands of new homes in south-west Sydney over 10 years.

  • The Minns government announced a $3 billion upgrade to Sydney's sewerage network to prevent debris balls and support housing growth, starting with Glenfield, Liverpool and Fairfield WRRFs.
  • Between October 2024 and January 2025, several debris-ball incidents prompted closures of nine beaches, while the NSW Environment Protection Authority traced the material to the Malabar deep-ocean outfall.
  • Sydney Water awarded a $750 million contract to the Malabar System Alliance, which serves 2 million Sydneysiders and handles up to 1,200 megalitres daily; Sydney Water chief executive Darren Cleary said, 'We understand the seriousness of recent debris ball incidents and the need to ensure our network is equipped for Sydney's growing population.'
  • Sydney Water has increased ocean outfall cleaning, tightened trade-waste controls, and the plan will produce recycled water that Water and Housing Minister Rose Jackson said could serve data centres under a user-pays model.
  • A later phase could reduce Malabar outflow by 85 megalitres a day subject to NSW Environment Protection Authority approval, while Infrastructure NSW regulates data centres and Sydney Water holds active discussions with developers.
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13 Articles

Sydney Morning HeraldSydney Morning Herald
+3 Reposted by 3 other sources
Lean Left

The $3 billion fix promised for Sydney’s mysterious poo balls

A major upgrade of the city’s ageing sewerage system will also unlock housing development in south-west Sydney and could provide an environmentally friendly water source to data centres.

·Sydney, Australia
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Sydney Morning Herald broke the news in Sydney, Australia on Thursday, January 15, 2026.
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