Trade waste: from protection to cost recovery New
Date: 03-Jul-2026
The trade waste manager’s role is usually described as a ‘protect’ function, ensuring the acceptance of trade waste into the sewage system does not impact workers’ health, deteriorate assets, inhibit treatment processes, cause environmental harm or reduce the value of downstream products for reuse.
qldwater frequently receives updates from members where trade waste has negatively impacted assets. For example, in one region a juice manufacturer caused extensive damage to trunk mains and pump stations through uncontrolled acidic discharges. In another, excessive discharge of oil and grease from a food processor caused inhibition of treatment process, resulting in environmental non-compliance.
There is another dimension to the trade waste manager’s role that is increasingly important - to ensure the additional costs incurred through acceptance of trade waste are recovered from the generators of trade waste in a cost reflective way. Failure to do this places a disproportionate burden on domestic customers - a situation that has become normalised. The reasons for this are surprisingly simple:
- The cost of accepting trade waste is already covered by sewage charges (i.e. there is no obvious revenue shortfall).
- The true cost of accepting trade waste is unclear.
- Concerns that investment in trade waste management may not provide a return.
These reasons are symptomatic of a modern tendency toward low energy management systems - but rewards are available for utilities that try to address reasons 1-3, including:
- Reduced pollutant loads (i.e. reduced capital and operational costs).
- Reduced risk of non-compliance with Environmental Authorities where unexpected or unmonitored loads impact treatment processes.
- Reduced system maintenance costs (i.e. reduced operational costs).
- Improved regulatory compliance (i.e. reduced environmental and economic risk).
There are many more advantages, including improved customer relationships, but let’s focus on the main ones.
Efforts to address reasons 1-3 are virtually guaranteed to pay dividends - of this we can be certain because:
- Recent reports (WSAA 2025) show almost all Australian utilities under-recover trade waste costs, and none adequately recover associated capital costs.
- Regulatory pressure to properly measure and direct trade waste costs has been a low priority.
- Financial risks of accepting trade waste are orders of magnitude larger than the cost of competent trade waste management.
This is why qldwater committed to the Trade Waste Uplift Project (TWUP) in 2025-26 – a year characterised by the need to identify ways to ease financial burden on Queensland utilities.
Larger utilities have already voted with their feet and have invested in trade waste management systems because they know it pays. Small regional utilities need best practice guidance and a collective approach to development of efficient system components. The qldwater TWUP is delivering this in the form of:
- Guidance on efficient trade waste management systems.
- A model trade waste management plan.
- A suite of best management practice documents for operational managers and customers.
- Best practice applications and approval forms.
- Guidance on tariff and charges based on financial modelling.
- Legally reviewed compliance enforcement notices.
- Tools for assessment and conditioning of major approvals.
The TWUP, in collaboration with the Regional Trade Waste Interest Group (also set up by qldwater as part of TWUP), has already delivered several of the items listed above.
Members can access TWUP products in the qldwater Trade Waste Toolbox. Back to list