Trade wastewater


Manage it responsibly

Trade wastewater is the wastewater that a commercial or industrial business produces as part of its operation. It contains substances that can affect the environment, public health and our sewerage system. It doesn't include wastewater from staff amenities.

The cleaner it is, the less impact on your bill and on the environment. We'll help you manage your trade wastewater responsibility.

Understand the rules you need to follow

We have requirements for managing trade wastewater. They depend on what your business does and how much trade wastewater it produces. 

Your required pre‑treatment equipment

Find out what pre-treatment equipment you must install to prevent blockages and overflows caused by oil, grease and other substances. 

Check your fees and charges

Know what trade wastewater fees and charges apply to your business.