Treating water protects our health by making sure safe drinking water is supplied to Melbourne.
Most of our drinking water needs very little treatment, as it comes from protected catchments which supply high quality water. This water is disinfected as it leaves our storage reservoirs and enters the supply system.
Some of our water comes from unprotected catchments and is fully treated at our water treatment plants. This process has additional steps to remove impurities before the water is disinfected, and is similar to water treatment processes used throughout the world.