Discharging industrial trade wastewater into our systems is an operational, environmental and safety risk for us and the community. That's why you must have our approval to connect your business to our systems, and properly install and maintain appropriate treatment equipment. This helps us meet our commitment to Greater Sydney to protect the health of the community and the environment. This page covers industrial trade wastewater. Find out more about commercial trade wastewater.
Trade wastewater may include substances that could affect the environment or the health of the community. It may even affect our ability to serve the community by damaging our equipment. Our requirements and conditions for accepting trade wastewater help us to:
Trade wastewater produced by processes like the ones below is industrial trade wastewater:
You also discharge industrial trade wastewater if your process is not specifically listed as a commercial or deemed process.
If you have our approval to discharge industrial trade wastewater, you will have an executed copy of our Consent to discharge industrial trade wastewater. The written approval outlines our conditions, including:
If you can't find a copy or you're not sure if you have our written approval, email us at firstname.lastname@example.org to check. If you don't have our approval and you're discharging trade wastewater, you must apply at Sydney Water Tap in.
Applying for approval to discharge industrial trade wastewater is simple:
The owner, manager or occupier who is conducting business on-site is the applicant. You must not apply on behalf of someone else without their permission. The property owner must sign the application form to confirm the business activities conducted on the premises.
We consider each application to discharge industrial trade wastewater carefully. You'll need to provide:
If you have our approval, you'll have a copy of a signed Consent to discharge industrial trade wastewater. The written approval is a legally binding contract signed by both parties. Read the general conditions that apply to a Consent to discharge industrial trade wastewater (100KB).
You must collect and analyse samples of your trade wastewater as specified in your Consent. Our List of analytical methods for trade waste (92KB) fact sheet specifies the reference method to use when analysing trade wastewater samples. We'll only accept analysis by laboratories registered with the National Association of Testing Authorities (NATA) to perform the class of tests or specific tests.
You must install and maintain an approved flow measurement device to measure trade wastewater discharge. The system must continuously display instantaneous flow rate and cumulative kilolitres discharged. Flow meters must be calibrated in situ every year.
Download Flow measurement for trade waste dischargers (220KB).
We may suspend our Consent to discharge trade wastewater if the wastewater discharge poses a threat to:
If you don't comply, we may disconnect the trade wastewater service and restrict or disconnect the water service.
Accepting trade wastewater to sewer means we accept additional operational, environmental and safety risks. To help manage these risks, we set concentration limits for some substances. These concentration limits are based on:
To find out more about our acceptance standards, read Industrial customers – acceptance standards and charging rates (644KB).
We'll consider an application to discharge groundwater during a site remediation if you:
Trade wastewater fees and charges cover the additional costs of managing and treating trade wastewater. There are 2 types of charges: