Saving water tips
Being more efficient with water will lower your bills, help the environment and help our storage levels - Saving water
Colac’s water is sourced from the Olangolah and West Gellibrand reservoirs, situated in protected, forested catchments in the Otway Ranges.
Water travels 25 kilometres to a service basin at the Colac water treatment plant in Elliminyt where it is filtered, disinfected and fluoridated, before being distributed to customers via a network of pipes, tanks and covered basins.
If Colac’s water supply is low, it can be boosted with a connection to the greater Geelong system, via the Wurdee Boluc channel.
Nearby towns
Birregurra’s water is supplied from Colac after it was connected via the Colac-Birregurra pipleline in 2024.
The townships of Forrest and Gellibrand are not supplied by the Colac system.
- Forrest: The rural township of Forrest is also supplied with water directly from the nearby West Barwon Reservoir. Forrest’s water is filtered and disinfected at a small dedicated treatment plant.
- Gellibrand: Gellibrand’s water is pumped from Lardner Creek to a storage tank and treatment plant where it is filtered and disinfected. Following this, water is piped to a clear water storage, where it is then gravity-fed to the township.
