Monitoring trade waste

Who monitors trade waste discharge?

Customer self-monitoring

Most conditional trade waste customers must monitor their own trade waste discharge and send us the results to show compliance.

The monitoring requirements for each business are set out in the trade waste agreement.

For a list of accredited testing laboratories:

  1. Visit www.ianz.govt.nz/directory/
  2. Search for a testing inspection facility under Laboratory - Chemical Testing/2.41 Waters, (d) Effluents and trade wastes.

Our monitoring programme

We make random site visits, without advance notice, to

  • verify any self-monitoring data.

We actively investigate all incidents to find where the issue started. This process can identify substances that have been inappropriately disposed of, and lead us to customers operating outside their discharge limits. In some cases this can lead to prosecution and recovery of costs.

What happens if I don’t comply?
What does Watercare’s monitoring cost?
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