Wastewater: industrial, commercial and subdivisions
You must seek approval from the Department of Health before you can:
- install an on-site wastewater system on industrial or commercial property
- or install a large scale or decentralised wastewater system on a commercial, industrial or residential subdivision.
Read more about wastewater works design approval, including how to apply.
All wastewater systems must be installed by a licensed plumber. If the system is to be installed inside a building control area, the design and installation must be certified.
Subdivision and development
If you plan to develop or subdivide land read the guidelines for land capability assessment for on-site wastewater management.
Read about wastewater codes and guidelines.