You will require this approval if you intend to undertake
development or business that may produce trade wastewater. Trade wastewater is defined as the liquid
waste generated from any non-residential property (commercial or industrial,
business, trade or manufacturing process) regardless of whether the wastewater
is discharged to sewer or transported by tanker to one of Hunter Water's wastewater treatment works. 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 one premise. Typical business
activities include food manufacture and processing, metal processing, oil
refinery, chemical production, municipal swimming pools, hospitals, large shopping
The fees and regulations may be different for each category of discharge.
Please consult your local Council or Hunter Water for information on forms to be submitted.