Yarra Valley Water


Secondary Chlorinators Project

To ensure we continue to supply safe, high-quality drinking water to our customers, we are installing secondary chlorinators at 14 reservoirs across our area

Yarra Valley Water is installing secondary chlorinators at 14 reservoirs across our area. Secondary chlorination is an additional barrier that helps to maintain our high-quality drinking water standards.

Secondary chlorination is an additional barrier that ensures we provide safe and clean drinking water to our customers.

chlorinator cabinet and building

The work at each reservoir will be completed in two stages. 

  • The contractor will mobilise at the site and prepare it for the installation of a chlorinator. This involves minor excavation works to construct a concrete pad, installing pipes and completing other preliminary work in preparation for the installation of the pre-fabricated chlorinator unit to connect to the water supply network.

    The contractor will return to the reservoir once the chlorinator unit has been fabricated and tested off site. The chlorinator tank will be connected to our water supply network and commissioned.

At some sites, a flowmeter may need to be installed and tested as part of the

commissioning activities.

Sites to receive secondary chlorination include:

  • Ringwood Reservoir, Ringwood North*

  • Coonara Reservoir, Olinda*

  • Kangaroo Ground Reservoir, Kangaroo Ground*

  • Sherbrooke Reservoir, Sherbrooke*

Work was completed at each of these four sites in 2021.

  • Ridge Road Silo, Johns Hill*

  • Diamond Creek East Reservoir, Diamond Creek*

  • Kalorama Reservoir, Kalorama*

  • Olinda Township Reservoir, Olinda*

Upgrade work at these four sites is expected to be completed in early 2022.

  • East Doncaster Reservoir, Doncaster East**

  • Eltham #2 Reservoir, Research**

  • Eltham- Lower Plenty Reservoir, Lower Plenty*

  • Lilydale/Plantes Hill Reservoir, Chirnside Park**

  • Mt Evelyn Reservoir, Mt Evelyn**

  • Pretty Sally Tank, Wallan**

Upgrade work at these six sites is expected to be completed by late 2022.


* Typical chlorinator cabinet  at these locations 

** Small chlorinator building to be constructed at  these reservoirs,


For information about upgrades at sites to be completed in 2022, please contact Jamie Lynch, Project Manager, Yarra Valley Water on 9872 1971 or by email [email protected]


For more information:

Water Quality Testing and Reports

View Info on Drinking Water Legislation 

Project Updates

View Project Update_Eltham Lower, May 2022

View Project Update  - Doncaster East Reservoir, March 2022

View Project Update - Eltham No. 2 Reservoir, March 2022

View Project Update - Plantes Hill Reservoir, July 2022

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