South-east Queensland’s main water treatment plant in Brisbane’s west, able to provide up to half the region’s daily water supply, will get a $35 million upgrade.
The filtration upgrade to the Mt Crosby water plant is expected to enhance water supply security for southeast Queensland, which involves replacing filters that remove sediment from Brisbane's drinking water.
Water treated at the Mt Crosby plants, located on both the east bank and west bank, comes from Wivenhoe Dam located 80 kilometres west of Brisbane.
The water travels to the Mount Crosby plant, where contaminants are filtered and removed, then delivered to household taps in the Brisbane and Ipswich area.
“The Mt Crosby water treatment plants, both East Bank and West Bank combined, are critical to the operation of the South East Queensland Water Grid,’’ Natural Resources Minister Anthony Lynham said.
The project is expected to take more than two and a half years to complete.
South-east Queensland water chief executive officer Neil Brennan said the water grid would be used to supplement Brisbane’s water supply when the refurbishment works are undertaken, adding that the plant will be “better equipped to deal with the impact of climate change’’.
The filters clarify water prior to disinfection in the water treatment process.
During the Brisbane floods, the Mt Crosby water treatment plant became clogged with silt from the Brisbane River, due to heavy rainfall.
The latest work will be staged to ensure water supply is maintained, with six filters being taken offline at a time.
Work on a $95 million pipeline connecting Beaudesert communities, south-west of Brisbane, with south-east Queensland's water grid is slated to start within months.
The 27 kilometre pipeline will connect the two recently-built reservoirs at the existing Beaudesert water treatment plant to south-east Queensland's water grid by 2022.
Pipeline tenders will be shortlisted next month, with a design and construction tender awarded later in 2020.