Water Quality
We are committed to ensure the continued supply of safe, healthy drinking water.
Water quality monitoring
Together with the retail water businesses, we regularly test the quality of water before it is transferred to homes and businesses. About 50,000 tests are carried out every year on samples from over 160 sites.
The samples are taken from our reservoirs, aqueducts, transfer mains, service reservoirs, and points of supply to our retail water customers.
A range of parameters is examined to determine water quality.
What's in your water besides H2O?
Very little. Since the majority of Melbourne's water comes from protected catchments, most of our water requires minimal treatment before being supplied to our retail customers.
All water supplied to these water companies is disinfected to ensure the water is free from microorganisms that can cause disease. (More on Water Treatment)
Analysis of Melbourne's water
We provide an annual analysis of Melbourne's water at our reservoirs. Water is tested after it goes through the primary treatment process and the analysis is based on the previous five years data:
Data and yearly summaries for localities is available from your local water retailer (City West Water , South East Water, Yarra Valley Water).
Downloads
You will need Adobe Acrobat to access the above PDF documents. 