Consent to Discharge Trade Wastewater - New South Wales


You will need this approval if you intend to discharge trade wastewater into works owned by the agency. Trade wastewater is liquid waste generated from any non-residential property. It does not include domestic wastewater (i.e. water from toilet, hand wash basin, shower and bath wastes).

All companies and businesses operating in the Hunter Water area of operations and discharging wastewater in the sewerage system will need to comply with these requirements.

There are four agreements which reflect increasing levels of risk associated with a particular discharge:

  • Category 1 includes domestic type waste discharge only. Typical business activities include hair dressers etc.
  • Category 2 includes domestic and process water discharge which will likely need pre-treatment prior to discharge or have restrictions on discharge. Typical business activities include small retail foods producers, restaurants, mechanical workshops, butchers, bakers, dentists etc.
  • Category 3 includes domestic and process water discharge where the need for pre-treatment prior to discharge and restrictions on discharge are highly likely. Typical business activities include large retail food producers, car wash, vehicle spray painters, service stations, large pubs and clubs and smaller shopping centres.
  • Category 4 includes domestic and process water discharge where the need for pre-treatment prior to discharge and restrictions on discharge are highly likely. Further, contaminant loads may be significant and / or include restricted substances and multiple businesses may be operating from the premises. Typical business activities include food manufacture and processing, metal processing, oil refinery, chemical production, municipal swimming pools, hospitals, large shopping centres.

Service type


A licence defines the need to obtain recognition / certification and registration to undertake a certain business activity.

Eligibility requirements

Please contact the agency to identify any eligibility requirements.


5 years


Fees Details for this service in table format.

Task Type Business Structure Description
Apply Application All Fee information is in the attached fee resource.

Act(s) name

Hunter Water Act 1991 New South Wales

Regulation(s) name

Hunter Water Regulation 2015 New South Wales

Application process


A trade wastewater application must provide sufficient information to Hunter Water to allow the determination of potential impacts and the associated likelihood of these events occurring. An application may involve submitting the following:

  • site plans showing buildings and infrastructure
  • plans of the proposed or existing treatment system prior to waste entering the sewerage system
  • the technical specifications of the manufacturing trade wastewater system
  • a list of hazardous chemicals.

Administering agency

Hunter Water Corporation

Contact details

Contact Email, Phone and Address Details for this service in simple two column table format, header then data.