Accepted pre-treatment products
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What does pre-treatment do?
For waste that is either incompatible or partially compatible with the wastewater system, pre-treatment is a requirement of your Industrial Waste Permit to ensure that the quality of pre-treated waste entering the sewer system meets the Corporation’s acceptance criteria. Waste minimisation at source can reduce the amounts of contaminants entering the system, or eliminate them entirely.
For many types of contaminants, pre-treatment of relatively small volumes at the source is more cost effective than trying to remove the contaminants from millions of litres of wastewater after it has reached the wastewater treatment plant.
Approved pre-treatment fixtures and products
When selecting or installing a pre-treatment fixture or product at your location, you should first confirm that the device or product has been accepted by the Water Corporation for use. The device or product provider should be able to demonstrate evidence of acceptance in the form of a letter issued by the Water Corporation.
If you are unsure about the status of a particular product or piece of equipment, or would like further advice, please contact us. Depending on the nature of your query, you may be directed either to the Water Services Association of Australia (WSAA), or to one of our Industrial Waste Officers.
It is prohibited to use a pre-treatment fixture or product that has not yet been accepted by the Water Corporation.
New pre-treatment product approval
Pre-treatment products must be initially reviewed by WSAA to confirm that they are fit for the purpose for which they are designed and then finally reviewed by the Water Corporation for acceptance or rejection. Only Water Corporation accepted pre-treatment products can connect to the wastewater system.
If you are proposing to install a non-accepted fixture or product, then a permit to discharge industrial waste cannot be issued until such time as the fixture or product has been reviewed and/or tested by WSAA, then reviewed and accepted by us.
Decommissioning a pre-treatment fixture
If you are relocating to a new site, closing, removing your waste generating processes, or choosing an alternative waste disposal method not involving sewer discharge, then you may need to cancel your Industrial Waste Permit, and decommission your pre-treatment fixture. Decommissioning may involve removing the fixture, bridging the fixture or re-routing your sewer lines to by-pass the fixture. You will need to arrange a licensed plumber to carry out this work.
Before you disconnect any fixture you must advise the Water Corporation and if you are not the property owner provide written permission from the property owner to disconnect the fixture.
If a fixture, such as a grease arrestor or dilution pit, is decommissioned but left in place then it must be suitably cleaned and pumped out by a licensed liquid waste contractor.
