Trade Waste Compliance Wollongong
A plain-English guide to trade waste compliance for food businesses and commercial kitchens in Wollongong — what it involves, why grease traps matter, and how regular servicing helps businesses stay on track.
Background
What Is Trade Waste?
Trade waste is any liquid waste discharged to the sewer from a commercial or industrial premises that differs in composition from normal domestic wastewater. This includes the oils, fats, and greases produced in commercial kitchens, food processing facilities, and similar operations.
In New South Wales, the discharge of trade waste to the sewer is regulated. Businesses that produce trade waste are generally required to hold a trade waste approval from their local water utility — which in Wollongong is managed through council as part of the sewer network administration.
A trade waste approval sets out the conditions under which a business may discharge to the sewer, including any pre-treatment requirements (such as grease traps), service intervals, and documentation obligations.
Grease Traps
Why Commercial Kitchens Need Grease Traps
Commercial kitchens produce significant volumes of fats, oils, and grease (FOG) during food preparation and washing. If FOG enters the sewer system untreated, it cools, solidifies, and adheres to pipe walls — causing blockages in both the business's own drainage and the wider council sewer network.
Grease traps (also called grease interceptors) are installed to capture FOG before it enters the sewer. The trap allows grease to separate from the wastewater and accumulate in a chamber where it can be removed by a licensed operator during a regular pump-out service.
Most food businesses that discharge to the sewer in Wollongong will be required to have a functioning grease trap as part of their trade waste approval conditions.
What Compliance Involves
What Trade Waste Compliance Typically Involves for Food Businesses
While specific conditions vary by approval, trade waste compliance for food businesses in Wollongong typically involves some combination of the following. Always check your specific approval conditions.
Grease Trap Installation
A grease trap sized appropriately for the kitchen's output must be installed and maintained in working condition. The trap must be accessible for servicing.
Regular Servicing Intervals
Trade waste approvals often specify a minimum cleaning frequency for grease traps — for example, monthly, every six weeks, or quarterly. Some businesses need more frequent servicing depending on kitchen output and trap size.
Service Records
Businesses are commonly required to retain service records — documenting each grease trap clean, including the date, waste volumes removed, and the name of the licensed carrier. These records may be requested during inspections.
Licensed Waste Disposal
All grease trap waste must be removed and disposed of by a licensed liquid waste carrier. Businesses should confirm the operator holds the necessary NSW EPA licence for liquid waste transport.
Approval Conditions
Beyond grease traps, a trade waste approval may also cover discharge pH limits, prohibited substances, reporting obligations, and requirements to notify the council of any changes to the premises or operations.
Annual Renewal
Trade waste approvals are typically renewed periodically. Businesses should keep track of renewal dates and ensure their grease trap is in good working order before renewal assessments.
Wollongong Context
Trade Waste in Wollongong
Wollongong City Council manages the local sewer network and administers trade waste approvals for businesses in the local government area. Food businesses operating in Wollongong — from small cafes in the CBD through to large commercial kitchens in Unanderra or Warrawong — are subject to trade waste regulations where they discharge to the sewer.
The Illawarra has a strong food and hospitality industry, with a high concentration of food businesses in Wollongong CBD, Corrimal, Fairy Meadow, Figtree, and Shellharbour. All of these businesses producing FOG are expected to manage their grease trap obligations under their trade waste approval conditions.
Service Records
How Servicing Records Help Your Business
Maintaining accurate grease trap service records is one of the most practical things a food business can do for compliance. Good records demonstrate that the trap is being maintained at the required frequency and that waste is being disposed of correctly.
What service records typically show:
- Date and time of each grease trap service
- Name of the licensed liquid waste carrier
- Volume of waste removed (litres or load details)
- Condition notes — any issues observed during the service
- Disposal facility or carrier licence reference
Ask the operator to provide a service docket for each visit. Keep these in a file on-site for easy access during any council inspection or internal audit.
Staying Ahead
Scheduling Regular Grease Trap Cleaning for Compliance
The most reliable way to stay on top of trade waste compliance obligations is to set up a scheduled grease trap servicing arrangement. Rather than tracking intervals manually and calling when a trap is full or overdue, a recurring service ensures cleaning happens at the required frequency — with records generated automatically at each visit.
Benefits of a scheduled compliance arrangement:
- Service intervals are met without manual tracking
- Service records are generated consistently
- Trap is never left to fill beyond capacity
- No reactive callouts or emergency situations
- Typically lower per-service cost than ad hoc cleans
- Supports renewal of trade waste approval
- Reduces risk of odour complaints from kitchen drains
Common scheduled intervals for Wollongong food businesses:
- Every 4–6 weeks — high-volume kitchens, large pubs, busy takeaway with smaller traps
- Every 6–8 weeks — moderate-volume restaurants and cafes
- Every 3 months — lower-volume kitchens with adequate trap capacity
- Every 6 months — seasonal or low-volume operations
Check your trade waste approval for any minimum frequency specified. Your approval conditions take precedence over general guidelines.
Arrange Grease Trap Servicing for Your Wollongong Business
Send your business details — type of kitchen, approximate trap size, current service frequency, and suburb — and we'll be in touch about arranging regular grease trap cleaning.
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Grease Trap Cleaning for Wollongong Food Businesses
Arrange regular grease trap cleaning to support your trade waste compliance obligations across Wollongong and the Illawarra.