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Hunua 4 Watermain project: new section goes live

We’re bringing a new section of the Hunua 4 Watermain​ into use that will increase the security and capacity of the water supply to parts of Mt Wellington, Penrose and the central eastern suburbs.

No one will be without water during this project and we will be doing everything we can to minimise any possible effects on our customers in these areas.

What do you need to know?

• Between 11am and 4pm on Tuesday 16 May, some households and businesses in these areas may experience temporary discolouration to their water supply. We recommend you check the colour of your water before drinking, bathing or doing laundry.

• While discoloured water is safe to drink, you may want to store clear drinking water in clean bottles before the work begins.

Our crews will be on standby to flush water pipes in the unlikely event of discoloured water in our network. We expect any instances of discoloured water, if they occur, to be brief and limited to between 10am and 4pm on Tuesday 16 May.​

If you have discoloured water after 4pm on Tuesday, please phone us on (09) 442 2222 and select option 1 for faults. We’re available 24/7.

We apologise for any inconvenience this important work may cause.

Why are we doing this work?

The 32-kilometre-long Hunua 4 pipeline will ultimately connect the reservoirs at Redoubt Road in Manukau to those in Khyber Pass, Grafton, and ensure we can continue to deliver a safe and reliable water supply for Auckland. It will also increase capacity in the water network to allow for future growth.

Click here​ for frequently asked questions about this project.

You can find out more about the Hunua 4 Watermain here