Drinking Water for New Zealand

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

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From 26 June 2017, data on this website is unchanging while the underlying databases are restructured.

MoH Recognised Labs

Ministry of Health Recognised Laboratories

To demonstrate compliance with the New Zealand Drinking-Water Standards 2000, water suppliers need to monitor the quality of their drinking-water by taking water samples and having them analysed. The Ministry of Health requires all such testing to be performed by laboratories that have appropriate skills and quality assurance procedures.

These laboratories, each with a specified list of tests, are recorded in the Register of Ministry of Health Recognised Laboratories.

On behalf of the Ministry, International Accreditation New Zealand.(IANZ) manages this Register using a special copy of the WINZ database. Any changes to the Register are uploaded to National WINZ at ESR, and from there are made available to all WINZ users.

There is no general registration option for a laboratory. Each determinand and method combination they require must be fully specified in the Register. This takes place following application to, investigation and accreditation by IANZ.

The current Register of MoH Recognised Laboratories can be fully queried on these web pages. Data is updated weekly. Alternatively, WINZ users can see this information in their copy of WINZ.

All tests registered will be for determinands listed in the New Zealand Drinking-Water Standards 2000. Methods for these tests will usually be reference methods as defined in the Standards, but other documented methods may be acceptable if the laboratory can demonstrate calibration against the referee method.

Note that MoH Recognised Laboratories were formerly known as MoH Approved Laboratories.

Laboratory Test Statistics

898 tests are recognised by the Ministry of Health as at 26 Jun 2017 (National WINZ data extraction date.).

Find a Laboratory

Use these options (or the tabs to the left of the page) to find a suitable lab for analysing your water supply:

Choose one of the following ways:



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