We use water in many ways in our daily lives. So it is vital that the water we drink, bathe in, swim in or fish from is safe.
Water is considered safe if it is free from harmful levels of disease-causing micro-organisms, as well as physical, chemical and radiological contamination.
Mains drinking water
We regulate the quality of your town's mains water to ensure it is safe for you to drink and use for household purposes. The regional water corporations have responsibility for providing safe drinking water to consumers serviced by a water supply zone.
Questions or concerns about your water quality should be directed to your water corporation in the first instance. Read more
Rainwater tanks and other drinking water supplies
If you source your drinking water from a rainwater tank or another raw untreated source, you should take care to ensure this water is safe for you to drink. Read more
Lakes, rivers and oceans
Many agencies are involved in ensuring that waterways and oceans are safe for recreational use, such as swimming, canoeing, sailing and fishing. We oversee monitoring of the most popular water bodies, although not all beaches and rivers are regularly monitored for water quality. Read more
To report a suspected pollution incident, call the Environment Protection Authority on 1800 005 171.
If you have a question about the safety of a waterway or body, please contact your local council.
Want more information?
Call the Public Health Hotline on 1800 671 738.
About the Environmental Health Unit.