Castle Hill Water Resource Recovery Facility Compliance Project

NSW
Sydney Water
In progress

Abergeldie is working with Sydney Water to deliver the Castle Hill Water Resource Recovery Facility Compliance Project. This upgrade is part of a larger initiative to connect three treatment plants in Sydney’s North-West, forming the new North West Treatment Hub. The hub will create a more efficient, integrated wastewater system to support growth in the area and help keep local waterways clean.

Scope of works

The scope of works involves project management, detailed design, process performance guarantees, civil and building construction, mechanical and electrical installation, testing commissioning, performance proving, and operator training, including: 

  • New inlet works. 
  • New odour control facilities. 
  • Upgrades to the primary sedimentation process. 
  • Upgrade to the existing bioreactor including the addition of an anoxic zone
  • New disinfection system facilities via Ultraviolet (UV) treatment
  • New tertiary filters. 
  • Upgrades to ancillary systems including chemical dosing systems, road, treated effluent discharge and recycled effluent (RE) network.
  • High and low voltage electrical works. 
  • Decommissioning and demolition of redundant systems.

Innovative solutions to address complex brownfield challenges

The Abergeldie project team has collaborated closely with its design partners-GHD, Thompson Controls, Promech and client Sydney Water to address complex brownfield challenges during the design phase of the project. to minimise disruption and maintain plant operation, the works are being phased and executed in stages. To address the intricate hydraulic requirements posed by the Peak Wet Weather Flow, an innovative serpentine weir arrangement was developed. This collaborative effort will result in a robust and buildable water-retaining structure. 

Community benefits

The upgrades will enhance reliability and increase capacity of wastewater services and improve the quality of the treated water discharged into local creeks and waterways.