Drinking Water for New Zealand

Managed by ESR for the Ministry of Health.         Data extracted from the National WINZ Database.

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An information source for the public, and those managing New Zealand drinking-water quality
Find a supplyIndividual Water Supplies

Click this map of New Zealand to find your supply and its compliance with the standards.

or Search:

Example: Entering akar will find both Akaroa and Paekakariki.

New: Fluoridated supplies map

NZ ProcessesNew Zealand Processes

Click the tap for knowledge on NZ drinking-water supplies, who looks after them and what processes are in place to ensure clean, safe water.

WINZ Database Users

Enter here for help, contacts, and the latest information

Latest WINZ Version: WINZ 7.0.02, released 23 June 2014

Site Statistics

Using National WINZ data to 26 Jun 2017.

Communities 2,120
Zones 2,391
Plants 2,288
Sources 2,800
About WINZ, the water quality databaseWINZ Database

Click the image to learn how information is managed using the Water Information New Zealand database system, created just for this purpose.


A fully-web replacement database is being developed and is expected to go live in 2017.

Water Carriers

All water carriers registered for providing drinking-water by tanker.

Find a Laboratory

All Ministry of Health Recognised Laboratories for drinking-water analysis.

Ministry of Health Official Documents

Use our list of Key Documents or go directly to the MoH website for water.
This website now shows supply data from the Annual report on Drinking-Water Quality for 2014/15.

Contact Us    More on ESR Water

Downloads        Disclaimer and Copyright        Privacy Statement See also the ESR Public Health Surveillance site.


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