Freshwater

We provide public information on river, lake, and groundwater conditions across New Zealand including freshwater quantity and quality.

Rachel Crawford and Paul Franklin inspecting a fish passage on the Waikato River.

Freshwater and Estuaries Update

A seasonal review and outlook for New Zealand's water resources, and an update on NIWA's freshwater research

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    Mitigation

    Options to minimise the effects of water abstraction activities on water quality and mahinga kai.

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    Mitigation and best practice options

    Some simple steps to minimise the effects of urbanisation on water quality and mahinga kai.

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    Impacts of urbanisation

    Impacts of urbanisation on water quality and mahinga kai.

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    Mitigation and best practice options

    Some simple steps to minimise the effects of horticultural activities on water quality and mahinga kai are outlined below.

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    Impacts of horticultural activities

    Impacts of horticulture on water quality and mahinga kai.

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    Impacts of forestry activities

    Impacts of forestry activities on water quality and mahinga kai.

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    About the resource consent process

    Learn about the Resource Management Act, Resource Consents, and how to prepare a submission.
    Freshwater quality

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    Impacts of agriculture

    How do agricultural activities impact water quality and mahinga kai?
    Agriculture

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    Horticulture

    The horticulture industry cultivates fruits, vegetables, and flowers for the domestic and international export market.

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    Forestry

    Plantation forestry has become one of Aotearoa's largest natural resource industries.

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    Setting priorities for protecting rivers and streams

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    Modelling fish species

    We have drawn on new developments in statistical modelling based on machine learning to develop environment-based models describing the distributions of thirty native fish species.