Seqwater’s Mt Crosby East Bank Water Treatment Plant upgrade has reached a significant milestone, with the Ipswich based project almost 50 per cent complete. 

The $35 million upgrade to South East Queensland’s (SEQ) vital water plant focuses on a filtration upgrade, replacing 20 sand filters that help purify the region’s drinking water ─ delivering major improvements to the plant’s filter design and controls.

The Mt Crosby water treatment plants, consisting of East Bank and West Bank, are critical to the operation of the SEQ Water Grid and provide more than half of Brisbane and Ipswich’s daily water supply.

The upgrade will significantly improve the plant’s ability to maintain water supply during extreme rain events and flooding, to further improve the water supply security of the region.

In total, 20 filters at the plant require refurbishment which will be completed in five stages, to ensure water supply is maintained.

The first year of construction has been completed on time and nine refurbished filters have successfully returned into service.

Taking filters offline has resulted in reduced production at East Bank, so Seqwater has been using the SEQ Water Grid and other treatment plants across the region to help supplement drinking water supply during the project.

The upgrade work will help the plant be able to treat water with high levels of turbidity or sediment, which can result from extreme rainfall events across the Wivenhoe catchment, washing soil and debris into the creeks and waterways.

The project marks the first time the sand filters have been replaced since they were progressively installed over 20 years from 1948. 

The new filters are expected to be in use until about 2070. 

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