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26 September 2019

The first stage of the $4.8 million upgrade to Heathcote Water Treatment Plant is now complete and the second stage of works has kicked off. 

Manager Infrastructure Corey Bourne said works completed included 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. UV treatment of water is a common disinfection method used by a number of water corporations.

“The overall works at the plant continue to progress as planned and are on track for completion in December 2019. Our contractor has been busy with site-clearing and levelling works at the plant in recent months, which have paved the way for the second phase,” Mr Bourne said. 

The second phase of works includes the installation of a permanent Powdered Activated Carbon (PAC) dosing system, which provides a means of managing taste and odour issues in the raw water supply.  

“Until now, we have been using a temporary PAC treatment system at the site on an ongoing basis to manage the taste and odour compounds in the raw water. To have this now made permanent will provide greater ongoing management for fluctuations in raw water quality.”

The plant draws raw water from either Lake Eppalock or Caledonia Reservoir depending on demand and supply factors in the broader water supply system. 

Mr Bourne said a further benefit of the upgrade works was that they will address any taste and odour compounds found in the raw water source being used at the time. 

“We’re also installing a new wastewater handling system, which will re-use as much of the wastewater at the plant as possible and help to address inefficiencies. 

“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. 

Minor on-site excavation work may continue in coming weeks as contractors create trenches for pipes and lay the foundations for the new PAC dosing system equipment. 

“We thank local residents for their patience due to some noise at the plant associated with rock breaking and site clearing.”

For more information about the Heathcote Water Treatment Plant project visit our website at www.coliban.com.au. 

Last updated on 26 Sep 2019
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