Fluoridation of water supply

An image of drinking water in a glass.

The Director-General of Health has issued a directive for us to add fluoride to our water supply in the Bream Bay and Whangārei water supply areas. 

Ministry of Health funding has helped with the costs of making this change. 

Construction is complete and the system is now dosing fluoride in line with the directive.

Latest news

Interim relief declined

The High Court has declined the Council’s request for interim relief and Council will continue to fluoridate, as legally required, until the outcome of Council’s substantive legal case challenging the safety of fluoride is known. There is no set date for when the hearing on the legal case will occur.

Whangarei District Council began gradually fluoridating its central and Bream Bay water supplies from 19 March 2025. 

Over the following eight days, hydrofluorosilicic acid was added to the water supply to bring the fluoride content up to the required amounts (0.7 to 1.0 parts per million), to meet the 28 March 2025 fluoridation deadline set by the Director-General of Health.

How to check your supply

You can check where water will be fluoridated in Whangārei District by using our interactive map: 

Map of areas for water fluoridation

More information

Get more information about community water fluoridation:

Ministry of Health community water fluoridation key messages and Q&As(PDF, 190KB)