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. We’ve identified four projects as our most important priorities to provide value-for-money, best practice water management for our region.   Read more


Your waterWellington 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. That includes looking after more than:

6,500km of pipes
148 reservoirs
259 pump stations
eight drinking water treatment plants   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.  

We're working with local councils and government to help make sure Wellington's communities are prepared, and ready to recover from a significant earthquake. Everyone has a role to play in being prepared.   Read more

Supply Map

Water supply mapThis map indicates the total water supplied to the network from the water treatment plants through to the reservoirs around the region. There may be fluctuations in the consumption data, this can be a result of operational maintenance such as planned water outages, or water main bursts. Other factors can include weather (heavy rainfall means less people watering their gardens).   Read more