Officer, Chlorination Unit Upgrade
Investigative works in your area
You might not notice a lot of the work we do because most of it is beneath your feet. Every day, we’re maintaining and upgrading the pipes, pumps and infrastructure that maintain water quality and keep water flowing.
With some upcoming works in Officer you might see us or our industry partner, Abergeldie, BMD & KBR (ABK) around.
Here’s what to expect while we get the job done.
Where we will be working
What you might hear and see
Frequently Asked Questions
South East Water is upgrading a number of Chlorination Units throughout the network to help maintain the reliability of our potable water supply system.
These essential upgrades will ensure we continue to deliver high-quality, safe drinking water that meets regulations and guidelines:
- Safe Drinking Water Act 2003 (the Act)
- Victorian Safe Drinking Water Regulations 2025
- Australian Drinking Water Guidelines 2011
Chlorine has been used effectively around the world for more than 100 years as part of the water treatment process and the amount of chlorine added is minimal.
Melbourne Water treats and disinfects your drinking water as needed before supplying it to us, so that it’s safe for you to drink and is of the highest quality. Chlorine is added as a disinfectant. This process kills nuisance microorganisms that might cause disease or grow in the network, such as pathogens and infectious bacteria.
To learn more about water treatment, visit Learn about water.
South East Water operates secondary chlorination units throughout the drinking water network to replenish or ‘boost’ the free chlorine residual from the source water provided by Melbourne Water, as the water travels through the network. This process enhances the reliability of water quality management to ensure compliance with safe drinking water regulations.
Less than 1.5 mg/L is added to drinking water at any point in our network through our secondary treatment units. This ensures we meet Australian Drinking Water Guidelines 2011 criteria for chlorine, which suggests a health limit of 5 mg/L.
The upgraded secondary chlorination units will be installed in new buildings within the existing footprint of South East Water assets, such as pressure reducing stations and pump stations. The design and layout of the new chlorinators has been developed with consideration to the surrounding environment and reducing impacts on existing trees and vegetation.
South East Water and our delivery partner, Abergeldie, BMD & KBR (ABK) will keep you informed about the project and construction in your area via a door-knock or letter, or digital communication via your registered SMS or email information. You can update your details at mySouthEastWater. We'll also keep this webpage up to date.
No, but please don't hesitate to call our 24/7 Faults and Emergencies team on 13 28 12 if you experience disruptions at any time.
Construction hours will be Monday to Friday between 7 am and 6 pm. On the odd occasion we may need to work at other times, including night works, for safety or technical reasons. If we do, we’ll make sure we let you know in advance so you can plan accordingly.
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