Skip to main content

Ngā mea kia kaua e tukuna e koe ki te waikeri wai āwhā

What you should keep out of the stormwater drain

​Waste and contaminants from industrial sites and households can pollute our waterways if not managed properly.


You should know

What gets through stormwater drains and waterways ends up at sea.

Keep these items out of your stormwater drains:

  • animal waste
  • chemicals, such as pesticides and fertilisers
  • construction materials and debris
  • farm waste
  • lawn clippings and yard waste
  • pool or spa pool water
  • paint
  • rubbish
  • waste from cars and boats, such as oil and antifreeze
  • yard waste.

You should also:

  • make sure that sewage waste and pool water flow through your wastewater drains
  • avoid uncoated copper guttering and zinc roofing
  • wash your car on a lawn, not on paved areas.

 Related topics



Consider stormwater when building stormwater when buildingIf you are doing any sort of development, one of the factors you need to consider is stormwater. Find out what you need to know about stormwater before you begin.aspxStormwater
Rainwater tanks tanksLearn the advantages of collecting rainwater on your property, how to use it, and information on installing an outdoor water tank.aspxEnvironment
How to stop paint polluting our waterways to stop paint polluting our waterwaysA guide for how to stop polluting our waterways and stormwater system.aspx
How we manage stormwater we manage stormwaterWe manage stormwater as it flows through public and private pipes, drains, streams and channels to reduce flooding and prevent the pollution of our waters.aspxStormwater
Missing, dislodged or damaged manhole or catchpit cover, dislodged or damaged manhole or catchpit coverHow to urgently report missing, dislodged or damaged manhole covers, roadside drains, grilles and grates. Displaced or damaged manholes pose a threat to public safety.aspxStormwater
Stormwater and waterway projects and waterway projectsThrough improvement projects on our stormwater network and waterways, we try to minimise flood risks, manage stormwater and prevent water contamination. aspxStormwater