What does the Trade Waste bylaw do?

This Bylaw enforces control over the type of materials that can be discharged into the public sewerage system in Otorohanga.

It establishes a framework for the management of, and associated charges for, waste originating from trade activities into this sewerage system.

It is costly and often difficult to treat waste created by businesses or premises for commercial purposes.

The Bylaw states that these businesses are required to bear a portion of the cost associated with treating that waste.

Characteristics of discharged waste that may require a Trade Waste Consent:

  • volume (daily and peak)
  • temperature
  • solid content
  • presence of oil, fat, grease, solvents, organic chemicals, emulsions of paint, adhesive, rubber or plastic
  • radioactive materials
  • very strongly coloured liquids.

Trade Waste Consent categories

There are two categories of Trade Waste Consent:

  • Controlled: Trade waste meets Bylaw requirements with regard to quality and quantity. These Trade Waste premises pay a standard fee for verification.
  • Conditional: Non-standard type or quantity of waste. These trade waste premises pay fees based on factors that affect the treatment process.

Controlled Trade Waste Consent

A Controlled Trade Waste Consent applies to activities which discharge relatively modest quantities of waste to the sewer system. 

Correct management of this waste where it is generated should limit any potential negative effects it has on the efficient operation of the public wastewater system. 

For example, the waste from food premises could potentially contain high levels of fat. The quantity of fat that enters the sewer can be reduced by installing and maintaining a trap to capture this fat before it enters to the sewer.

Fixed annual charges apply to Controlled Trade Waste Consents. This covers the cost associated with Council's periodic checking that the required on-site management of the waste is occurring (such as the regular emptying of traps).

Conditional Trade Waste Consent

A Conditional Trade Waste Consent applies to waste that is likely to have a significant negative effect on the public wastewater system, even if this waste is well managed on the site where it is generated.

Fees for this type of waste will be charged based on the estimated cost of treatment, which is evaluated based on the process set out in the Bylaw which takes into account of the volume of discharge and its physical and chemical characteristics.

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