Stormwater flows directly to streams, rivers and beaches - so we need to make sure only rain and clean tap water go down the outside drains.

The stormwater system is designed to contain, channel and pipe rainfall and natural water run off into rivers and sea. It is untreated, and separate from the wastewater/ sewage system.

Stormwater is of concern for two main reasons:

  • the volume and timing of runoff water, and
  • potential contaminants that the water is carrying.

Report spills or pollution

To report spills or pollution incidents phone the local Council (24 hrs): 03 543 8400 (Tasman)  03 546 0200 (Nelson).

Tips: How to deal with run-off and chemicals
Stormwater best practice guide
Stormwater in subdivisions
Rules for residental, rural, commercial and industrial zones
Stormwater drainage areas
Roadside drains

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