Greater Western Water > previously known as Western Water > and City West Water >
Navigating your new websiteTrade waste is liquid waste, other than domestic sewage, that is discharged to the sewerage system.
Trade waste from industrial and commercial business activities can contain oils, grease or chemicals that have an adverse impact on the sewerage system or the environment.
Generally, trade waste requires treatment before it's discharged to the sewer system. This ensures it is compatible with sewerage pipes and treatment systems, and protects:
Greater Western Water limits the quality and other characteristics of the trade waste it accepts into the sewerage system. The limits are known as “Trade Waste Acceptance Criteria” and any trade waste meeting these criteria will normally be suitable for discharge to the sewerage system.
View the Trade waste acceptance criteria.
Trade waste customers include, but are not limited to, the following types of businesses:
Trade waste customers need to ensure:
Trade waste customers must develop a management plan and submit an application form before they discharge trade or septic waste.
Trade waste charges are calculated based on the volume and the quality of the waste and take into account certain risk factors.
The Trade Waste Customer Charter outlines the services performed by Greater Western Water and the respective rights and responsibilities of Greater Western Water and its customers