Western Sydney Recycled Water Scheme


Customer: WaterNSW

Contract: Design, Construct, Operate and Maintain

Location: St Marys, New South Wales

Fast Facts

  • 50 ML/day advanced water treatment plant
  • 12 km, 450 mm diamater treated water pipeline
  • 8 km, 450 mm effluent pipeline

McConnell Dowell, as part of the Deerubbin WaterFutures Consortium, were responsible for the design and construction of this project designed to provide environmental flows to the Hawkesbury-Nepean River System and highly treated recycled water for industry and new homes in Sydney’s western suburbs.  The plant is one of the largest water recycling plants in Australia.

Work included design and construction of an advanced water treatment plant for treating tertiary effluent. The plant produces 50 ML/day of highly treated recycled water and approximately 8 ML/day of concentrate (brine generated from the treatment process).

Other works included a 450 mm dia. 8 km pipeline for the transfer of the effluent, including a new pump station and buffer storage; and a 450 mm dia. 12 km pipeline for the transfer of the tertiary treated water, including a new pump station and buffer storage.

McConnell Dowell was also part of the team providing ongoing operations and maintenance services for the plant for 15 years.

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