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O'Shannassy Reservoir

View facts and historical rainfall data for O’Shannassy, Melbourne’s smallest reservoir.

View facts and historical rainfall data for Silvan Reservoir, the heart of the water transfer system that supplies most of metropolitan Melbourne.

Stay up to date with H5 bird flu information, reporting guidance and updates on Melbourne Water's response and site access.

This digital data licence agreement must be read and accepted before accessing and downloading data from the Melbourne Water GIS Data Hub.

This privacy statement applies to the information collected from you in order to gain access to our GIS Data Hub.

Wetlands sustain a complex ecosystem of plants and animals; learn more about how we help maintain them.

Melbourne Water acknowledges the release of the Port Phillip Bay Coastal hazard Assessment by DEECA.

A summary of the state of Melbourne’s water availability for the year ahead, and our actions to secure a resilient, reliable water supply.

We’re undertaking strategic research projects to improve our knowledge of Western Port’s marine and coastal environments.

Learn how we calculate water storage levels and why we display data in a particular way.