What is wastewater?

Every day we deliver safe drinking water to your home through our drinking water network. Once you've used this water we then take it away, first through your homes plumbing and then through the public wastewater network.   Read more

How is wastewater removed from my home?

Wastewater leaves your home through a gully trap and lateral pipes on your property, before entering the publically owned wastewater ‘network’. The gully trap and laterals within your property boundary are your responsibility, if there are any blockages or damage to these pipes it is your responsibility to get them repaired by a plumber.   Read more

The Treatment Process

All treatment plants are slightly different, but the process is generally similar.   Read more

Looking after your wastewater

Here are some handy tips (for both inside and outside your home) to help you avoid damage to your wastewater network and avoid large $$$ plumbers bills.   Read more

Where does wastewater go?

Wastewater is transported along the wastewater network to a wastewater treatment plant where it’s treated, before being discharged to sea. In Wellington, 154 million litres of wastewater goes to the four treatment plants every single day! All this needs to be processed and that includes everything the water brings with it. Fun fact: some treatment plants have even had undies and jeans turn up!

There are eight wastewater treatment plants that we manage.   Read more