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Onsite wastewater management systems

These systems treat and manage sewage and greywater directly on a property. Learn about the permit requirements, legal obligations, and how you can choose the right system to install.


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How onsite wastewater management systems work
Get to understand how and what makes an onsite wastewater management system work. You can also find out what options you have if you want to install a new system.
Apply for an onsite wastewater management system permit
If you are considering installing or altering a wastewater management system on your property, you need to apply for a permit. You should talk to a plumber to help you pick the most suitable system for your needs.
Make a complaint about an onsite wastewater management system
If you wish to complain about an onsite wastewater management system in your neighbourhood, you should contact us.
Contact us
Maintaining your onsite wastewater management system – Your legal obligations
Having an unmaintained onsite wastewater management system puts you, your family, the environment and your wallet at risk.
Request an onsite wastewater management system plan
If there is already an onsite wastewater management system on your property, we may have a copy of its plans. If your property is very old, we cannot guarantee we will be able to find the plans.