Wellington Water

07/06/2026

🤿 Not your average day at the office!

Our team has engaged specialist divers to clean reservoirs across the Wellington region!

This method has provided significant benefits for both the network and customers. By avoiding the need to isolate reservoirs, the team has been able to complete essential maintenance without causing water outages, redirecting supply from other reservoirs, or reducing water pressure in the network.

16 reservoirs have been cleaned across the Wellington region so far with work currently under way at the 20,000m³ Ngauranga Reservoir.

A great example of improving efficiency, minimising customer impacts, and helping maintain the resilience of our water network! 💧

07/06/2026

WATER OUTAGE - ST ALBANS GROVE, WOBURN

FINAL UPDATE 3PM, 7/6

Our team has completed the repair, and service has been restored to the affected area.

Please run a cold tap for 15 minutes prior to using dishwashers or washing machines to clear any air pockets.

The team will remain onsite briefly to backfill the area.

There will be no further updates.

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2PM, 7/6

Kia ora Woburn,

Our team has responded to a burst pipe on St Albans Grove, Woburn.

To carry out the repair, water has been turned off to all St Albans Grove and all of Glen Iris Grove as per map below.

We're working as quickly as possible to resolve this and anticipate service to be turned back on in approximately 3 hours.

This post will be updated with the latest info.

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Want to receive automatic notifications of incidents in your area?
Text ‘HELLO’ to 8090 to register for text updates, or see https://www.wellingtonwater.co.nz/about-us/contact/email-notification-service for emails.

07/06/2026

Between approximately 11.30 am and 12.44 pm on 7 June, the short outfall pipe discharged untreated wastewater into Tarakena Bay.

Check LAWA before visiting beaches along the south coast.

Public health information can be found on Health NZ's website, link is in the comments.

06/06/2026

GEAR ISLAND WATER TREATMENT PLANT

UPDATE 1 - 5PM, 8/6

The fluoride facility at Gear Island Water Treatment Plant will remain offline for a few more days.

Checks will be carried out over the coming days to assess the condition or the equipment and determine the necessary repairs.

We’ll provide a further update on Wednesday 10 July.

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The fluoride facility at the Gear Island Water Treatment Plant has been turned off just after midnight on 7 June. This is due to an issue with the boost pumps.

The issue will be assessed on Monday 8 June. Further updates will be provided as we find out more.

Send a message to learn more

06/06/2026

WASTEWATER OVERFLOW - SILVERSTREAM

Kia ora Silverstream,

There's been a wastewater overflow from the Silverstream Wastewater Storage Tank this morning at approximately 3 am due to heavy rainfall. This has since stopped and the the wastewater storage tank has started to drain.

The local wastewater network has been assessed and is operating as intended.

Signage has been placed along Te Awa Kairangi and Petone to let people know of the discharge as a precaution.

We'll continue to monitor the weather forecast over the weekend, however, heavy rainfall is not expected.

Make sure you follow LAWA's advice and stay out of the water for at least 48 hours.

Always check LAWA to see if it's safe for swimming, other recreational activities, and collecting kaimoana.

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Want to receive automatic notifications of incidents in your area?
Text ‘HELLO’ to 8090 to register for text updates, or see https://www.wellingtonwater.co.nz/about-us/contact/email-notification-service for emails.

Send a message to learn more

05/06/2026

🌧️ Heavy rain means that there's an increased risk of wastewater overflows!

This is because during heavy rain, stormwater can get into the wastewater network and overload it.

To protect homes, streets and critical infrastructure, the system is built to release pressure at selected overflow points during severe weather events.

Given the recent heavy rain, make sure you follow LAWA's advice and stay out of the water for 48 hours.

Always check LAWA to see if it's safe for swimming and other recreational activities!

05/06/2026

WATERLOO WATER TREATMENT PLANT

Waterloo Water Treatment Plant was shut down on Thursday at 9.15am for reactive works to be undertaken.

The plant was restarted at around midday. The fluoride facility was turned back on but remained mostly offline due to an equipment issue and a process fault. The issue was resolved this morning, and the fluoride facility has been turned on this morning 5 June at 8.19am.

The Plant and the fluoride facility are both operating as usual. No further updates will be provided.

Send a message to learn more

04/06/2026

ISLAND BAY - WASTEWATER INCIDENT

FINAL UPDATE - 6.20PM, 5/6

Our team continues to respond to a wastewater overflow at 249 The Parade, Island Bay.

• Our crews have cleared the second blockage on The Parade.
• There will be targeted investigations carried out on this pipeline when weather conditions permit.
• Our contractors and our crews are still onsite assisting with cleaning up.
• Signage is now in place around the outlet and will remain in place over the weekend.
• Water quality sampling will be carried out at the point of discharge.

There will be no further updates.

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UPDATE 4 - 4.50PM, 5/6

Our team continues to respond to a wastewater overflow at 249 The Parade, Island Bay.

• Crews have identified a second blockage near the overflow on The Parade.
• The flushing team are currently setting up to try and clear the blockage.

A further update will be provided this evening as this work progresses.

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UPDATE 3 - 3.30PM, 5/6

Our team is continuing to respond to a wastewater overflow at The Parade, Island Bay.

• The crews have removed further debris from the blockage site and have now flushed the network.
• Wastewater flows are returning to normal however it may take an hour or more for overflow to completely stop.
• A sucker truck remains onsite.
• We are attending to the overflow on The Parade and supporting the clean up
• The network is slowly returning to normal.
• Additional resources have been mobilised and are available to assist with monitoring, clean up and response.
• Crews will be monitoring wastewater pump stations through the evening and overnight.
• Some of the overflows have entered the stormwater network, signage has been put in place around the outlet.

A further update will be provided at approximately 5pm.

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UPDATE 2 - 1:30PM, 5/6

Our team is continuing to respond to a wastewater overflow at The Parade, Island Bay.

• The crews have removed debris further debris from the blockage site and are now setting up to flush the network at this location.
• A suction truck remains at 249 The Parade to assist with clean up
• We have been made aware of a new overflow on The Parade. A suction truck is onsite with overflow being contained and to assist with clean up.
• Additional resources are being sourced to locate and repair the cause of the overflow
• Some of the overflows have entered the stormwater network, signage has been put in place around the outlet.

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UPDATE 1 - 11:30AM, 5/6

• The crews have removed debris from the blockage site and wastewater is now flowing through the network. The overflow at has stopped.
• Our crews remain onsite to check for further obstructions and inspect and monitor further issues.
• We are aware of 5 properties being affected by overflowing gully traps. Crews continue to assist with cleaning and disinfecting.
• Some of the overflow has entered the stormwater network, signage has been put in place around the outlet.

There will be a further update mid afternoon

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Kia ora Island Bay,

Our team have responded to a wastewater overflow on The Parade, Island Bay. This is the result from a blocked wastewater main on The Parade.

• There is a suction truck onsite at the overflow which is continuing to contain the overflow.
• At the blockage crews are now onsite and traffic management is in place while we continue to work on the blockage.
• We are aware of a number of properties with overflows from their gulley traps because of the mains blockage. We are working with property owners to assist with cleaning and disinfecting.
• We will be working with Council roading teams to check on other areas of surface flooding.
• Some of the overflow has entered the stormwater network, signage will be put in place at outlets.

There will be a further update by midday.

Send a message to learn more

04/06/2026

Due to heavy rainfall in the catchment area, the short outfall is discharged untreated, unscreened wastewater into Tarakena Bay between 2.26 pm and 7.47 pm on Friday 5 June.

There was a previous discharge via the short outfall between approximately 2 am and 4am on 5 June

Check LAWA before visiting beaches along the south coast.
Public health information can be found on Health NZ's website.

Public Health advise to stay away from Tarakena Bay and do not swim, surf or kayak along Wellington’s south coast until further notice. Do not gather shellfish or kaimoana from the south coast area from Ōwhiro Bay to Breaker Bay.

Links to LAWA and Health NZ’s websites are in the comments.

03/06/2026

Better water services means having safe drinking water, reliable wastewater treatment, and stormwater systems that work when it matters most.

Wellington Water transitioning to Tiaki Wai on 1 July is a necessary structural change to fix long-standing, region-wide issues.

In late July or early August, you’ll receive your first Tiaki Wai water services bill, which will be separate from council rates. Your bill will fund essential upgrades and investments that will improve and maintain water services for generations to come.

There are no quick fixes. Without long-term investment and improved management, the region will face more frequent infrastructure failures, higher repair costs, greater environmental and public health risks, and reduced resilience for future generations.

Improvements will take time, but change is underway.

Learn more at:

Tiaki Wai is the new organisation that will deliver water services across Hutt, Porirua, Upper Hutt, and Wellington cities from 1 July 2026.