Follow the history of Melbourne’s sewerage, from open sewers and thunderboxes to sustainable resource management and recovery.

​The town of Cocoroc was built in 1894 at the Werribee Sewage Farm to house its workers. Discover its many fascinating stories.

The Western Treatment Plant has played a crucial role in Melbourne's development, treating our sewage since 1897.

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

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.

This website and its content are owned by, or licensed to, Melbourne Water. Read our copyright information and disclaimer.

We monitor and supply water diversion licences for any water needed to be taken from the Yarra River, Lower Maribyrnong River and Western tributary areas for commercial and irrigation uses.

A diversion licence is needed to take water from a waterway or dam for commercial or irrigation uses. In some instances a licence may also be required for domestic and stock use.

Water trading is the buying and selling of water entitlements by licence holders. Find out how to apply to trade water, or transfer your licence when selling your property.