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

NIWA and ORC field staff collecting water samples side-by-side from the Waitati River

Photo: Juliet Milne

NIWA and ORC field staff collecting water samples side-by-side from the Waitati River, an ORC State of the Environment (SoE) monitoring site north of Dunedin. The sampling formed part of a larger assessment of field practices against requirements of the NEMS for Discrete Water Quality.