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Stormwater

Stormwater management devices

Design guideline manual (TP10) is a guideline for developers to choose and design constructed water quality treatment devices, and water volume management.

The manual provides more guidance on practice selection including:

  • a preference for wetlands over ponds
  • a preference for vegetative filters (rain gardens, swales, wetlands, filter strips)
  • promoting detention to protect streams from erosion
  • enhancements to allow the use of swales as a stand alone practice
  • volume control
  • integrating landscaping issues with device design
  • outlet protection for erosion control
  • construction and maintenance monitoring checklists
  • household rainwater detention tanks
  • green roofs.

Download the stormwater guideline manual

The Stormwater treatment devices: Design guideline manual is available for download below. The documents are in pdf format, for which you will need Adobe Acrobat Reader. Visit the Adobe website for more information.

Proprietary products

The following stormwater treatment devices have gone through the process outlined in Chapter 15 of TP10, and have shown that they are able to remove 75% of total suspended solids on a long term basis.

Those capable of removing 75% total suspended solids as stand-alone devices are:

Those capable of achieving less than 75% total suspended solids for use in retrofit situations and/or part of a treatment train are:

Further information

For further information or to make comments on this document, please contact the Stormwater/Sediment Team at the Auckland Regional Council or email storm@arc.govt.co.nz

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