A permanent system to manage taste and odour issues in the raw water supply is part of the second stage of the $4.8 million Heathcote Water Treatment Plant upgrade.
Previously, a temporary system was in place, but Coliban Water infrastructure manager Corey Bourne said a permanent powdered activated carbon dosing system would provide for better management of fluctuations in water quality.
The upgrade project is due for completion in the new year.
Stage one saw the installation of a permanent UV water treatment system and a chlorine contact tank.
"These two upgrades are now operational and will see an improvement to water disinfection, which provides an additional process to remove microorganisms that are present in the raw water supply," Mr Bourne said.
A new wastewater recycling system is also being installed to reuse as much wastewater at the plant as possible.
"It means we can prevent excess wastewater being released to sewer network, and in turn, reduce the volume sent to our Heathcote Water Reclamation Plant," Mr Bourne said.
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