Planned works - Castlemaine Water Treatment Plant
- Chewton
Over the coming weeks we will be working at the Castlemaine Water Treatment on McCay Reservoir Road on Saturdays as part of the construction of our new clear water storage tank.
This is to install the steel walls on our new 6 megalitre clear water storage tank. These works should not involve heavy machinery, extra noise or regular traffic on McCay Reservoir Road.
When completed, the tank will provide extra water security for the Castlemaine community, who rely on the plant to provide them with drinking water each day.
Works will begin on Saturday 16 May and will continue for about 9 weeks, weather permitting. Works will take place from 7am to 3pm on Saturdays. We may not be required to work every Saturday.
Please be aware of extra traffic in the area.
If you have any questions please call 1300 363 200.
Routine maintenance – Cohuna Water Reclamation Plant
- Cohuna
We’re carrying out routine maintenance on one of our lagoons at the Cohuna Water Reclamation Plant.
Machinery will begin arriving on site from Monday 25 May, with works starting shortly after. The works will involve removing solids that settle in the lagoon over time as part of the sewage treatment process. This maintenance will improve our routine operations at the plant.
During the works, you may notice noise and dust. We’ll aim to reduce this by wetting down the site where possible to reduce dust.
You may also notice more trucks in the area as we transport material from the plant. We expect around three to four truckloads per day.
We don’t expect these works to cause odour, but if you do notice it smells worse than usual or you have any other concerns, please call us during business hours on 1300 363 200.
Your sewer services will not be impacted during these works. Thanks for your understanding while we complete this routine maintenance.
Low pressure during works – Echuca
- Echuca
We are commissioning a new diesel pump at the Echuca Water Treatment Plant on Thursday 14 May between 10am and 4pm.
Some parts of Echuca may experience low pressure while equipment is commissioned.
This diesel pump will help maintain water pressure in the Echuca water network in the event the booster pump stations in east or west Echuca are offline.
Booster pump stations help water move through the pipe network and maintain pressure to provide water to our customers.
There will be no interruption to your water supply and your water remains safe to drink.
Water mains cleaning – Bendigo suburbs
- Multiple suburbs in Bendigo
We’re completing routine water mains cleaning between Tuesday, 26 May and Thursday, 2 July 2026 in Maiden Gully, Long Gully, East Bendigo, Ascot, White Hills and Bendigo Central.
We’ll be using a method called air scouring which pushes compressed air and water through the mains to flush out the natural build-up of sediment.
Works will involve a four-hour interruption to customers. Affected customers will be contacted by mail and SMS before the interruption.
See below for when our cleaning crews will be in your area.
- Maiden Gully – Tuesday 26 May to Thursday 4 June
- Long Gully – Tuesday 26 May to 10 June; and Thursday 2 July
- White Hills – Wednesday 17 June Thursday 25 June to Wednesday 1 July
- East Bendigo – Wednesday 10 June 2026 and Friday 12 June; and Thursday 18 June
- Ascot – Thursday 25 June to Wednesday 1 July
We recommend you turn off your stop tap on the day of the works to prevent sediment entering your pipes.
For a detailed map of our planned works or to find out more about water mains cleaning please visit our Connect Coliban page.
Water treatment plant upgrades - Cohuna
- Cohuna
We are upgrading the Cohuna Water Treatment Plant as part of our Water Treatment and Storage Upgrade Program, a $40 million program of upgrades across our service region. Upgrades will include replacing the pump station, electrical upgrades and improvements to water treatment processes at the plant.
Between April and June, we'll be doing site preparation and upgrading underground pipes. We'll be working on weekdays between 7am and 5.30pm.
During works you may notice noise and dust. We’ll aim to reduce this by wetting down the site where possible to reduce dust. You may also notice more trucks in the area using the plant entrance on Cohuna Island Road.
There will be no interruption to your water services as part of these upgrades.
For more information visit connect.coliban.com.au/water-treatment-and-storage-upgrades