Freshwater quality

EFSAP is a water planning and management tool designed to assist with setting regional or large-scale water resource use limits for rivers.

On the bottom of New Zealand’s largest freshwater springs is an underwater garden of vivid green, pinks and inky blues.

NIWA freshwater scientists have completed monitoring the ultra-clear water of the Te Waikoropupū Springs near Takaka.

Ruth Beran discovers that public interest in the state of fresh waterways has driven a dramatic change in the tools used by scientists.

A group of volunteers who love the Hutt River are helping to care for it over summer.

Citizen scientists take on Hutt River

A new online survey is forming the basis of the National Riparian Restoration Database, which will help scientists to improve understanding of how riparian buffers benefit waterways.
Take the survey

Since the end of June, a barge has been stationed just off Wellington’s Miramar Peninsula drilling into the seabed to find an alternative water source for the city.

A sophisticated buoy has been deployed in Wellington Harbour to “phone home” information about currents, waves and water quality in the harbour.

NIWA, supported by DairyNZ, are asking anyone who has planted along stream banks to take a short survey.

NIWA is undertaking a five-year nationwide study to find out how different approaches to riparian planting influence water quality improvements and to provide better guidance to the people and groups undertaking stream restoration.