Applications and forms

You must have a valid authorisation before you can discharge trade waste into the sewer. The form you need to complete depends on the nature of your business.

Below are details about how to apply for a trade waste authorisation.

Before you apply, please read the Restricted Wastewater Acceptance Framework. The framework outlines the trade waste general policy requirements and has important authorisation compliance information.

Read more about industry requirements and information about how we accept trade waste.

Application forms

The form you complete depends on your business. Read on to see which category your business fits and which form to complete..

Complete the form

The business that will create the trade waste discharge will need to fill in the form. If you are not the property owner, you will need to work with your property owner to properly allocate the responsibility for plumbing and drainage works and other property management matters.

You must apply for authorisation before you engage a licensed plumber to install or modify any required plumbing or fixtures.

Application process

1. Check which form you need to complete. 
2. Read through the requirements for your industry. 
3. Complete either the new online application or select the correct PDF application form: non-complex business or complex business. 
4. Pay the fee. 
5. Wait about 10 business days for us to process your application.

If your application  meets all requirements, we will issue your trade waste discharge authorisation. If we need more information, we may need to arrange a site inspection with you.

Remember to wait for  your authorisation approval before you engage a licensed plumber to install or modify any plumbing or fixtures.

Fee payment

Payments can be made by EFT (electronic funds transfer), post, by phone, or in person.

Credit card or EFT

Call 08 7424 1336 to make a credit card payment, or get EFT information. 

IIn person

Visit SA Water House, 250 Victoria Square/Tarntanyangga, Adelaide between 8.30am – 5pm, Monday to Friday.

By post

Post your payment with any application forms or account information to

Trade Waste

SA Water
GPO Box 1751
ADELAIDE SA 5001

Make sure you can meet your authorisation conditions

• Arrange installation of any pre-treatment fixtures or plumbing modifications that are needed. A licensed plumber must do all these works.
• Take any other actions to make sure you can meet your authorisation conditions before you start to discharge waste into the sewer.

We will visit your premises to inspect your discharge and to work with you by providing advice and support. Together we can ensure you meet your ongoing authorisation conditions. Inspections are annual for most customers – more frequent where high risk activities occur – and there is a fee for each inspection.

Once-off discharges

Once-off trade waste collections are classified as liquid hauled waste. See the liquid hauled waste pages for more information.

Other forms

Notify us about a batch treated waste discharge

Trade waste basic pre-treatment product approval 

Groundwater Disposal to Sewer Application

Confidentiality disclosure – this form is used when your approval to disclose any relevant SA Water information to a third party is required.