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Trade Waste

There are restrictions on what kind of trade waste can go into the wastewater system. If you're a business producing trade waste, you will need to apply to us for consent.

Trade waste is the liquid waste that businesses release into the wastewater system. Unlike household wastewater, trade waste can contain harmful substances that can damage the sewage system, disrupt treatment plant operations, and pose risks to the environment and the health of workers at wastewater plants

There are strict rules about what types of trade waste can be discharged into the wastewater system. If your business produces trade waste, you must apply for consent from us. This ensures that your waste is managed properly and doesn’t harm our community or taiao (the environment).

Make sure to handle trade waste responsibly and comply with all regulations to protect our waterways and public health. Otherwise, your business could lose its consent or be prosecuted under the local government act.

Who Needs a Trade Waste Consent?

If you run a commercial, industrial, manufacturing, or trade business, you’ll need to apply for a trade waste consent if:

  • Your business produces more than 2 cubic meters of liquid waste (which is more than what a large household generates), or
  • Your liquid waste contains substances that could harm the public wastewater system.

This applies to businesses such as:

  • Food processing or retail premises
  • Manufacturing and processing operations
  • Chemical processing or production facilities
  • Waste management services
  • Service stations and car washes
  • Laundromats and dry cleaners
  • Landfills or any operations producing leachate

Already Have a Consent?

If the nature of your liquid waste changes, you’ll need to reapply for a new consent to ensure compliance.

What Your Trade Waste Consent Covers

Your trade waste consent will detail:

  • The volume of wastewater you are allowed to discharge
  • The specific characteristics of your wastewater
  • Any required pre-treatment before discharging into our system
  • On-site service and maintenance requirements

This ensures that your business’s waste is managed safely and in line with our public wastewater system standards.

Applying for trade waste consent

Please email or phone to apply for a trade waste consent

✉️ tradewaste@westernbay.govt.nz

📞 027 266 1300

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