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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    Impacts of wastewater treatment

    How does wastewater treatment impact water quality and mahinga kai?

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    Impacts of Aquaculture

    Impacts of commercial aquaculture on water quality and customary harvest activities

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    Meat and dairy processing activities

    Meat and dairy products are processed in dairy factories, meat works, tanneries, and factories.

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    Further reading

    References, further reading, and links to useful websites.

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    Geothermal

    Heat stored in the earth is extracted to create geothermal power.

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    Thermal

    Thermal generation supplies up to 50% of power in Aotearoa.

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    Further reading

    References, further reading, and links to useful websites

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    Mitigation and best practice options

    Ways to minimise the effects of wood processing activities on water quality and mahinga kai are listed below.

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    Further reading

    References and further reading

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    Mitigation and best practice options

    Simple steps to minimise the effects on water quality and Mahinga kai.

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    Further reading

    References, further reading, and links to useful websites.

  • Link to source page

    (no image provided)

    Mitigation and best practice options

    Some simple steps to minimise the effects of meat and dairy processing activities on water quality and mahinga kai.