Most of Melbourne’s drinking water comes from mountain ash forests high in the Yarra Ranges.
These forests have been closed to the public for over 100 years. This means that no human contamination is possible and the water supply is clean and secure.
The remaining water catchments that are not protected go through full filtration treatment and disinfection to meet health guidelines.
To ensure good water quality, all major parts of the water supply system are cleaned and tested regularly.
Download the factsheet to find out more.
Years 3 - 4: Geography VCGGK082
Years 5 - 6: Geography VCGGK096, Science VCSSU073 and VCSSU076
Years: 7 - 8: Science VCSSU101
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