On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

How to collect a water sample

Some SHMAK tests require you to collect a water sample. You can use SHMAK to test some parameters, alternatively the water sample can be sent to a lab for analysis.

How to Collect a Water Sample

Some SHMAK tests require you to collect a water sample. You can use SHMAK to test some parameters, alternatively the water sample can be sent to a lab for analysis.