To ensure a safe water supply, Western Water treats and/or disinfects water before supplying it to customers.
Western Water’s water treatment processes are determined by a range of factors including:
- the catchment area
- the chemistry and biology of the water
- mandatory requirements, such as disinfection and fluoridation.
Drinking water sourced from unprotected catchments (all local water storages) requires filtration and disinfection due to the surrounding agricultural and urban activity. Water sourced from Melbourne is from protected catchments so only requires disinfection.