Reduce wastewater being discharged into our rivers and onto people's properties during rain events.
When water isn't draining right, it's not healthy for your family, your home or our rivers and beaches.
The DrainWise project is about working together with property owners to help fix problems with wastewater and stormwater drains.
Long Term Plan 2018/28 budget: $20.8 million over 10 years
Resource consent for wastewater overflows
Consultation to consider as part of a resource consent application to discharge wastewater into the city's rivers.
Why discharges happen
Understand what causes wastewater to overflow onto private property and into our rivers in heavy rain
Help us - help you
Get to know your gully trap, check your downpipes and how to stop surface flooding
DrainWise checklist, fact sheets, videos and flyers.
What we're doing
Our current work to help reduce flooding and overflow problems.
Stormwater upgrade to add more capacity to the Kaiti network system
What we've done
Check out what we've done and the story of how we became DrainWise
Tell us about any stormwater or wastewater flooding on your property
See the winner of the drain art competition.
Property Inspection FAQs
Some questions and answers about our property inspections for DrainWise.
Glossary of terms
A glossary of terms for stormwater and wastewater.