Council & City

Duplicate water main

To protect our water supply for the future, we’re building another water main pipe from the treatment plant to the city between now and the end of 2021.

Photo shows Palmerston North's water reservoir in the Turitea Valley.

Two-thirds of our city’s water comes from the Turitea Dam in the Tararua Ranges. After it’s treated it then travels through a major pipe, to pump stations where other pipes take the water to your homes and businesses.

To protect our water supply for the future, over the next two years we’re building another water main pipe from the treatment plant to the city. This will ensure that if major operational problems or an earthquake occur, we can continue to supply water.

The current pipe is 60cm in diameter, made of steel and lined with concrete.

The new pipe is 45cm diameter and is made of a type of thick plastic material which can move in an earthquake.

Over summer 2019-20 we’ll be installing the pipe from the treatment plant to just past its entry gates which is very tricky to do. Once that work is done, the pipe will be connected down to our Ngahere Park Reservoir by the Manawatū River.

The work this summer will not affect any residents. When we do the next section we’ll be talking to residents on Turitea Road about the construction and how that may affect access to their homes at certain times of the day during the construction period. We’ll work with them to keep any impact to a minimum.

The rest of the city’s water comes from bores scattered around the city. Currently, these bores only provide water to some suburbs, but in an emergency can supply the whole city.


  • Summer 2019-20: Construction of the duplicate main from Turitea Water Treatment Plant to its entrance gates.
  • May to October 2020-21: Construction between Turitea to Ngahere Park at the Manawatū River.

We’re committed to supplying some of the best water services in the country

Our Three Waters Plan outlines our priorities over the next few years so we can continue to provide and future proof a clean and healthy water supply.