• Asia Pacific Rentals & Services
  • 08/09/2025

FUTURE READY WATER TREATMENT FOR CRANBROOK

WestWater (a Centurion company) delivered a multi-process upgrade including pH correction, filtration, and UV disinfection, ensuring the Cranbrook water treatment plant (WTP) met Level 4 standards and supported future demand.


The Client

Our team was engaged to deliver upgrades to the Cranbrook Water Treatment Plant in WA, which sources raw water from two dams with artificial bitumen catchments.

Client Challenges

The Cranbrook water treatment plant faced a number of pressing challenges:

  • Water quality issues had required carting water to site during poor quality events, creating additional costs and risks
  • The existing bulk chlorine tablet dosing system often resulted in non-compliance with chlorine levels in the Cranbrook reticulation network
  • To safeguard public health, the client required the WTP to meet Level 4 source treatment standards, adding additional treatment barriers for pathogen protection.

Our Solutions

Over a two-and-a-half-year period, WestWater (a Centurion company) designed and constructed major upgrades to the WTP, ensuring enhanced treatment capacity and long-term reliability.

The upgraded plant included:

  • pH correction
  • Coagulation
  • Disc filtration
  • Ultra-filtration
  • Ultra-violet disinfection.

Modifications were also made to the existing chlorination module to suit new chlorine dose rates.

Results

  • Increased plant capacity to deliver 247kL per day within a 16-hour operating window
  • Improved compliance with Level 4 water source requirements
  • Peak demand met efficiently:
    • Average Day Peak Week = 198kL/day
    • Peak Day = 247kL/day
    • Peak Instant = 30.5kL/hour
  • Additional storage capacity with a new 60kL filtrate tank, supplementing the existing 200kL high-level tank, ensuring sufficient treated water for future demand.

Conclusion

This project delivered a future-ready, multi-discipline water treatment solution for Cranbrook. By combining multiple treatment processes in one integrated upgrade, Centurion strengthened water quality, improved compliance, and provided long-term reliability for the local community.

Contact Information

For more information, contact the team at E: sales@westwater.com.au, T: +61 8 9248 2411 (Perth, Western Australia), T: +61 7 3806 2900 (Brisbane, Queensland)

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