Moa Point Wastewater Treatment Plant – Short outfall pipe discharge
Moa Point Wastewater Treatment Plant – Short outfall pipe discharge

The short outfall is currently discharging untreated, unscreened wastewater into Tarakena Bay, and it is likely to be travelling around the coastline.  

 

Check LAWA before visiting beaches along the south coast.  

 

Public health information can be found on Health NZ's website: https://www.healthnz.govt.nz/health-topics/keeping-healthy/healthy-homes-environments/water-activities/moa-point-wastewater-wellington

Wellington Water crews responding to a heavy rain event and surface flooding
Wellington Water crews responding to a heavy rain event and surface flooding

Wellington Water crews are actively responding to a band of heavy rain causing surface flooding and network impacts across the Wellington, Kāpiti Coast and South Wairarapa regions today.

Reports of flooding have been received this morning in Stokes Valley, Naenae, Upper Hutt, Plimmerton and Porirua areas. We currently have around 5 crews deployed across affected areas and working closely with local councils to respond as conditions evolve.

Heavy rainfall has led to surface flooding on key transport routes,please see NZTAs latest update for road closures.

Additional resourcing has been activated from across the region and are focusing on known flooding hotspots.

Crews are working as quickly as they can, but we are advising residents to bear with us as response times in some locations are being impacted by restricted road access.

Wellington Water is continuing to monitor conditions closely and will respond to all service requests as they arise.

We are keeping the public and impacted communities up to date via our website and social media channels. For further updates, please check the Wellington Water Facebook page: https://www.facebook.com/share/p/1Dgm5dd54q/

 

Projects

Every year we carry out over 200 different projects in our four cities. These projects range from renewing a stormwater pipe in a single street to building a new reservoir. 

 

We are working hard to meet the region's growing water needs

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Poole Cres 1 26Mar26

Lower Hutt drinking water and wastewater pipe renewals

On behalf of Hutt City Council, we’re replacing more than 10km of water and wastewater pipes across Lower Hutt by July 2026. It’s part of our commitment to reducing leaks and improving the resilience of our networks.

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Harris St Syphon

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Titahi Bay water main renewals

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Project Updates

Titahi Bay water main renewals
Last updated: Apr 15, 2026, 11:56 AM
Ngauranga Gorge project
Last updated: Apr 13, 2026, 4:25 PM
Once the water wells work has been completed, which we anticipate being Thursday 16 April, we will be starting on installing the H (or bearing) piles.
Porirua Central Wastewater Storage Facility
Last updated: Mar 31, 2026, 1:57 PM
Lower Hutt drinking water and wastewater pipe renewals
Last updated: Mar 30, 2026, 4:49 PM
Western Wastewater Treatment Plant Refurbishment Projects
Last updated: Mar 26, 2026, 1:55 PM
The works to replace and upgrade the plant's ultraviolet system (UV) has been completed.
Tōtara Park Road Bridge Pipework Seismic Strengthening
Last updated: Mar 24, 2026, 9:11 AM
Crews have started on the first phase of works, which involves installing a water pipe (known as a ridermain) along Clouston Park Road and Tōtara Park Road
Harris St Syphon
Last updated: Mar 23, 2026, 4:05 PM
Now that’s what we call a deep clean!

Constructed over twenty years ago to address stormwater flooding in the CBD, the Harris Street syphon sits 16 metres under ground level. It’s meant to drain stormwater from around Willis and Victoria Streets and discharge it, using its own momentum, at Frank Kitts Park.
Takapū Road Watermain Renewal
Last updated: Mar 23, 2026, 2:58 PM
Delivered under the Urgent Works stream as part of our Capital Delivery Programme, our internal Major Pipelines, Operations, and Design teams have been working collaboratively to unearth sections of the bulk water main (that is, the big pipes) which carries drinking water from Te Mārua Treatment Plant in Upper Hutt to Porirua City and the western suburbs of Wellington City.
Newlands Watermain Renewals
Last updated: Mar 23, 2026, 9:56 AM
Seaview Wastewater Treatment Plant Upgrades
Last updated: Feb 13, 2026, 11:24 AM

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