Untreated, unscreened wastewater has been discharged into Tarakena Bay. Check LAWA.org.nz before visiting beaches.
Untreated, unscreened wastewater has been discharged into Tarakena Bay. Check LAWA.org.nz before visiting beaches.

Between approximately 8 am on 25 June and 7 am on 26 June, the short outfall pipe discharged untreated wastewater into Tarakena Bay.

Signs are in place along the coastline to alert water users of areas which may be impacted by this event. Water quality samples will be collected from coastal locations once improved weather conditions allow. 

Check LAWA.org.nz before visiting beaches along the south coast. 

Public health information can be found on Health NZ's website. 
Wellington Water crews responding to wastewater overflow on State Highway 2
Wellington Water crews responding to wastewater overflow on State Highway 2

Our team is responding to a wastewater overflow on State Highway 2 which has stopped this afternoon. The overflow was from a manhole on the southbound lanes close to the Ngauranga exit, discharging into the habour through the stormwater drains.

While the overflow has stopped, our teams are working to clear a blockage which still remains. They are working at pace to identify the blockage and get this cleared. 

One southbound lane clasure remains in place approaching Ngauranga while work is underway.
Willeston St pump station
Projects / Willeston St Underground Pump Station

Willeston St Underground Pump Station

Overview
Current status
Background
All Updates
More Upgrades
Wellington CBD Wastewater Programme Johnsonville Pump Station Upgrades Victoria Street Wastewater Rising Main Martinborough wastewater treatment plant consent compliance upgrade Taranaki Street Rising Main ‹ Back to all projects

Wellington Water, on behalf of Wellington City Council, are upgrading the underground pump station and the wastewater network in the city centre to improve its resilience and plan for future growth.

Start Date
11/08/2025
End Date
31/12/2025
Part of programme:
Wellington CBD Wastewater Programme
Contact:

If you have any questions about this work, please contact:

Wellington Water, 04 912 4400

Latest Updates

14 November 2025 Major upgrades completed at Willeston Street

In November our contractors wrapped up the works at Willeston and Victoria Streets, renewing the main wastewater pipe and connecting it to the pump station which drives wastewater from the CBD out to Moa Point Wastewater Treatment Plant.

On November 14th our contractors wrapped up the works at Willeston and Victoria Streets, renewing the main wastewater pipe and connecting it to the pump station which drives wastewater from the CBD out to Moa Point Wastewater Treatment Plant.

There will need to be some final bits of work done in the new year, and we do need to pop the hatch every now and then for routine maintenance, but this will involve much less disruption for pedestrians, drivers and local businesses.

What we are doing

Wellington Water, on behalf of Wellington City Council, are upgrading the wastewater network in the city centre to improve its resilience and plan for future growth.

As part of this, we need to access the underground pump station in Willeston Street to install new pumps and fittings as well as upgrade electrical equipment.

Why are we doing this?

This project is part of a major upgrade of the CBD wastewater network. The upgrade is designed to ensure future resilience, support population growth and protect the environment.

 

Check out other projects as part of this programme of work.

Wellington CBD Wastewater Programme

Taranaki Street Rising Main

Wakefield Street Rising Main - Stage 1

Taranaki Street Pump Station

All Updates

14 November 2025 Major upgrades completed at Willeston Street

In November our contractors wrapped up the works at Willeston and Victoria Streets, renewing the main wastewater pipe and connecting it to the pump station which drives wastewater from the CBD out to Moa Point Wastewater Treatment Plant.

There will need to be some final bits of work done in the new year, and we do need to pop the hatch every now and then for routine maintenance, but this will involve much less disruption for pedestrians, drivers and local businesses.