Drinking water

Every day we supply safe drinking water to residents in the Wellington region, on behalf of our councils.  

On average we supply around 160 million litres (ML) of water a day to Upper Hutt, Lower Hutt, Porirua and Wellington, and around 4.1 million litres of water per day to Greytown, Featherston, Martinborough and Pirinoa. 

In this section, you can learn more about where your water comes from, how it’s treated, and get some handy tips to save water, particularly during the drier summer months.