Huia water treatment plant replacement - Manuka Road, Waima

Planning is underway to build a new Huia water treatment plant at Manuka Road, Waima.

The new plant will replace the adjacent aging water treatment plant that was built in 1928.

Start–finish: 2016–2023
Location: Woodlands Park Road, Waima (Titirangi)
Status: Planning
A photo of the current Huia Wastewater Treatment Plant.
Built in 1928, the Huia water treatment plant, in Woodlands Park Road, is nearing the end of its useful life.

What's happening?

Find out more about open days, the material presented and commonly asked questions and answers.

The Huia water treatment plant, located at the corner of Woodlands Park Road and Manuka Road, is Auckland’s third-largest water treatment plant. It treats water from the Upper and Lower Huia Dams and Upper and Lower Nihotupu Dams.

The plant is nearing the end of its operational life and needs to be replaced. A new water treatment plant will ensure we can supply our growing city with high-quality water from the west for the next 100 years.

As part of the process to identify a suitable site for a new water treatment plant, we have undertaken a comprehensive site identification process. Please refer to the Tonkin and Taylor report and the GHD shortlist site development report for further information on the site assessment process.

In June 2017, Manuka Road, Waima was selected by the Watercare Board as the preferred site for the replacement treatment plant. We are now gathering information in preparation for lodging the necessary resource consent applications with Auckland Council in early 2018.

Find out more about the consent application process and supporting documentation.

A photo of the Huia Water Treatment Plant in 1957.
The Huia water treatment plant in 1957.

What are the benefits?

The replacement Huia water treatment plant will help to maintain the security of Auckland’s water supply. The plant treats almost 20 percent of Auckland’s water supply. Replacing the old plant is essential to ensuring Aucklanders have access to high-quality, reliable water services as we grow.

The importance of the Huia water treatment plant to the resilience of Auckland’s water supply was highlighted during the Tasman Tempest weather event in early March 2017. Extreme rainfall in the Hunua Ranges resulted in slips and sedimentation in some of the supply dams. The reliance on the Huia water treatment plant during this time was essential in ensuring Auckland did not run low on water.

Huia water treatment plant has an unconstrained peak production of 126ML/d.  The new treatment plant will allow for more efficient treatment of the water from the four supply dams, increasing maximum production to 140ML/d.

Have your say

On 1 and 5 March 2018 Watercare held drop-in sessions at Lopdell House, Titirangi where up to 140 people came to talk with our staff and experts about planning and progress being made on the replacement Huia Water Treatment Plant.
Find out more about open days and the material presented.

We are also working with a community liaison group formed from local community groups who provide valuable local knowledge and act as a sounding board for our working on decisions about the new plant. Their minutes and more information about community involvement can be found here:
Community liaison group and meeting minutes.

Everyone will have an opportunity to make a submission when the applications for resource consent are lodged and notified in mid-2018. It is likely that the council will send a notice of the application to all land owners in the wider community. Submissions will be heard by independent commissioners.

Any questions?

See the responses to commonly asked questions​ or please contact:​

More information

Huia project newsletter (13 February 2018)
Huia WTP Newsletter (July 2017)
Huia WTP Interesting Facts (February 2017)
History of Auckland’s water supply (February 2017)

Related pages

Huia water treatment plant replacement consent application process
Huia water treatment plant replacement open days
Huia water treatment plant community liaison group

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