Planned maintenance works - Castlemaine Water Reclamation Plant
- Castlemaine
We’re planning essential maintenance works at the Castlemaine Water Reclamation Plant in Langslow Street between February and May.
These works include the cleaning and maintenance of the equipment that treats wastewater from customers in Castlemaine, Chewton, Campbells Creek, Newstead, Maldon and Harcourt.
During this work, there is a chance of increased odour and noise - we will do our best to minimise these impacts.
Completing these works will improve the reliability and day-to-day operations of the plant. The table below outlines the schedule of works we have planned.
| Type of work | What are we doing? | When |
| Aeration tank maintenance |
Aeration tanks ensure the treatment process can happen by forcing air through the wastewater. To complete the work, we need to empty these tanks to allow our team to access the bottom of the tank and repair, maintain and replace necessary parts. |
Sunday 23 February until Thursday 6 March between 7am and 6pm. You may see a crane onsite during the works, and you may notice noise and more traffic in the area. |
| ATADs inspection |
Our Autothermal Thermophilic Aerobic Digestion system turns sewage sludge into a valued biosolids product for agricultural reuse. It will take two days to drain the three tanks and another three days to clean and inspect them. |
We will complete a clean and inspection of our ATAD system from Tuesday 11 to Monday 17 March between 7am and 6pm on weekdays. |
| DAF tank maintenance |
The Dissolved Air Flotation (DAF) tanks help thicken sludge from the treatment process so it can go to the ATADs. Works will include cleaning and inspecting both tanks and replacing the chute that removes thickened sludge from the DAF tanks. We will also re -coat the steel lining and clean the rest of the tanks. |
Between March and May, we will complete maintenance works the DAF tanks at the plant. Works on the first DAF tank will be from Tuesday 11 March to Friday 4 April. Works on the second DAF tank will be from Friday 11 April to Tuesday 13 May 2025. |
We encourage you to call us on 1300 363 200 to report odour. The more we receive these reports, the more we can build a picture of the areas of our plant that need the most urgent attention.
For more details on the works read our Castlemaine Water Reclamation Plant February update here.
Postponed community pop-up - Maiden Gully
- Maiden Gully
The Maiden Gully community drop-in session, originally scheduled for Tuesday 18 February, has been postponed.
We will let the community know once this session has been rescheduled.
We apologise for any inconvenience caused.
Epsom and Huntly update
- Epsom and Huntly
Friday 14 February 9am update
We are aware some customers in Epsom and Huntly noticed changes in the colour of their water these past two weeks, and we want to apologise for this.
While the change in the water colour was less than ideal, we want to assure you that the water is tested regularly and remains safe to drink.
We want to hear from you!
If you are still experiencing problems with your water, we want to know about it! You can call us on 1300 363 200, email us coliban@coliban.com.au with your address and a photo of your water, or SMS us on 0418 301 884 with these details.
What was the problem?
The first few days of February were very hot, and we saw a record spike in water demand. This meant more water than usual was travelling through the main pipeline that supplies water to Epsom and Huntly, and this disturb sediment.
The initial water main flushing conducted on the pipeline did not clear the sediment as we hoped. We were able to identify the location that was causing the water discolouration and have bypassed this section of pipeline.
A targeted flushing program throughout parts of Huntly has been undertaken, and the water in your taps should now be clear.
What’s next?
We will continue to monitor your water quality.
There is still work to be done to clean the bypassed section of pipeline, but we would like to wait until the weather is cooler to reduce any further impact. We will let you know when this work is scheduled.
Thank you
We’d like to thank those people who visited us at the Huntly Memorial Town Hall yesterday to meet the team and have any questions answered.
If you were unable to attend the session and would like to talk to someone, please call us on 1300 363 200 – we are here to help.
The drinking water trailer that has been located in Greene Street, Huntly (behind the North Central CMA office) will remain in place this weekend.
Planned water main shutdown - McKenzie Hill
- McKenzie Hill
Our crews will be complete works on a hydrant in Diamond Gully Road, McKenzie Hill on Thursday 20 February from 10.30am to 11.30am.
During these works some customers will be without water. These customers have been notified.
Minor traffic management will be in place.
When supply is restored, you will need to run your taps for a period of time until the water becomes clear.
We apologise for any inconvenience caused.
Planned water main shutdown - Wedderburn
- Wedderburn
*Rescheduled date
Our crews will be completing water main renewals in Hospital Street, Wedderburn, on Thursday 20 February from 9am to 3pm.
The standpipe on Reef Street will be inactive during the works.
Impacted customers have been notified.
Minor traffic management will be in place.