Learn how to use our interactive map to view rainfall, river level or river flow data at more than 200 sites.

Understand the key values and conditions we use to track the health of our rivers, creeks and wetlands, and how we test water quality.

Melbourne Water releases a large amount of information as online and printed documents, in meetings and at community events and other activities.

​Sugarloaf Reservoir supplies the northern, western and central suburbs of Melbourne.

View facts and historical rainfall data for Tarago Reservoir, which supplies water to Westernport and the Mornington Peninsula.

View history, facts and historical rainfall and inflow data for Thomson, Melbourne’s largest reservoir.

View facts and historical rainfall data for Upper Yarra Reservoir, which transfers water to Silvan Reservoir.

View facts and historical rainfall data for Yan Yean, Melbourne’s oldest reservoir.

Get the lowdown on Melbourne’s sewerage system, how we look after it and what you can do to help.