On-water recreation reopens at some reservoirs
- Kyneton, Malmsbury and Harcourt North
The following access points have re-opened as of 13 August 2026 after closing due to recent rainfall and a high-level of flows:
- Lauriston Reservoir
- Upper Coliban Premier Mine Road
The following access points remain closed
- Malmsbury Reservoir
- Upper Coliban Reservoir dam wall
- Barkers Creek Reservoir
These closures help keep the public safe following wet conditions and high amounts of in-flows to the storages.
We appreciate the community's understanding and cooperation while these temporary closures are in place.
Upper Coliban Reservoir – access point closure
- Kyneton South
Upper Coliban Reservoir has reached capacity and is currently spilling.
To help keep the community safe, the dam wall access point off Kyneton-Springhill Road is now closed.
For your safety, boats and other watercraft must not be launched from the dam wall area while spilling is occurring.
On-water recreation and boating can continue to be accessed via the Premier Mine Road boat ramp.
We will continue to monitor conditions and provide updates if there are any changes.
Safety reminders
- Do not launch boats or other watercraft from the dam wall area.
- Use the Premier Mine Road boat ramp for boating access.
- Follow all safety signage and directions.
We thank the community for helping keep this area safe while the reservoir is spilling.
Water Reclamation Plant controlled releases - Kyneton
- Kyneton
We have started controlled releases of recycled water from our Kyneton Water Reclamation Plant into the Campaspe River as of Thursday 4 June.
Releases to the Campaspe River are required to maintain storage levels in the onsite lagoons and are in accordance with flow and quality requirements of our EPA licence. The releases are weather dependent and will likely continue until September.
Under our EPA issued operating licence for the Kyneton Water Reclamation Plant, we make available to the public water quality and flow monitoring. The flow data, available one month in arrears and updated on the 21st of each month, can be viewed here.
Planned works - Castlemaine Water Treatment Plant
- Chewton
During August we will be finalising the construction and commissioning a new clear water storage tank at Castlemaine Water Treatment on McCay Reservoir Road.
Works are expected to be complete by 31 August.
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.
Please be aware of extra traffic in the area.
If you have any questions please call 1300 363 200.
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 July and September, start construction on the new Powdered Activated Carbon dosing system, Ultraviolet disinfection buildings and wash water handling facility upgrades.
We'll be working on weekdays between 7am and 5.30pm with some low impact works on some Saturdays.
No interruptions are planned as part of these works, but some customers may notice minor pressure fluctuations as testing is carried out.
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