Watercare has lifted the boil water notice that was in place for parts of Hillsborough, Mt Roskill, Royal Oak and Three Kings. Drinking water in the affected area is now safe to use as normal.

Our investigations have confirmed that the issue was caused by a specific water quality monitoring tap within our extensive network of water quality monitoring locations. The tap has now been replaced and subsequently retested, and we can confirm it was the source of the issue. This has been fully addressed, and there is no ongoing risk to the drinking water supply. We are satisfied that water quality is normal and meets all safety standards. This is supported by multiple clear test results across the affected area, confirming the water supply is safe.

What happened

A routine water sample taken earlier this week returned a single E. coli result. While all other results from that sample were within normal ranges, we issued a boil water notice as a precautionary public health measure, in consultation with Taumata Arowai, our water regulator.

This cautious approach is standard practice and allows time for further testing and inspections to ensure drinking water remains safe.

Thank you to the community

We would like to thank residents and businesses for their patience and understanding and for following the advice while we worked through this issue. We know the notice caused disruption, and we appreciate the cooperation shown while we took a careful and precautionary approach to protecting public health. 

Support and next steps

All temporary water tankers in the area will now be stood down. We will continue to monitor the network closely and carry out follow-up checks as part of our normal water quality assurance processes.

You can always visit our website for more information: watercare.co.nz. 

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