Regional priorities

Wellington Water takes a regional approach to our work. That means we take into account what’s best for the whole region as we plan and advise our client councils on managing and developing our water network. After all, pipes, rivers and streams span the region, and our citizens live, work and play across the region, too.   Read more


Wellington Water manages the three water networks - drinking water, wastewater and stormwater - for Hutt, Porirua, Upper Hutt and Wellington city councils, South Wairarapa District Council and Greater Wellington Regional Council.   Read more

Drinking water

We supply about 140 million litres (ML) of water per day (on average) to Upper Hutt, Lower Hutt, Porirua and Wellington.   Read more


The stormwater system is an underground network of pipes that drains the rain off of our roads, footpaths, and from our gutters, and diverts it into our streams, rivers and eventually out to sea.   Read more


Every day we deliver safe drinking water to your home through our drinking water network. Once used, this water leaves your home as ‘wastewater’, through your plumbing and into the public wastewater network.   Read more

Emergency water

Wellington’s water supply network is vulnerable. After a significant earthquake many parts of our region may be without water for more than 100 days.   Read more

Land development

We work with property owners, developers, engineers, architects and others who want to carry out work on or near drinking water, wastewater and stormwater network pipes, manholes (entry points), fire hydrants and other assets.   Read more

Supply Map

This map indicates the total water supplied to the network from the water treatment plants through to the reservoirs around the region.   Read more