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Ngā kaupapa ā-wai Tahua Pūtea 10-tau 2018-2028

Water projects

Find out about new and expanded water projects under way in 2019/20. $452 million has been set aside for water quality improvement projects over 10 years. $58.9 million of this has been allocated to the second year of the 10-year budget (2019/20).



Western isthmus

The programme aims to significantly reduce wastewater overflows into the Waitematā Harbour and reduce stormwater entering the wastewater network.

It involves numerous major infrastructure improvements to the stormwater and wastewater network in collaboration with Watercare.
Other goals include:

  • reducing risks to public health
  • opening both Meola Reef and Cox’s Beach from permanent closure
  • reducing intermittent beach closures in this area over the next 10 years.

Find out more on the Western isthmus programme page.


Contaminant reduction programme

This programme aims to reduce litter and pollutants in our waterways and marine environment.

Key aims include:

  • reducing sediment in the Kaipara Harbour by improving stream stabilisation and preventing erosion
  • reducing litter, sediment and heavy metals concentrations to Omaru Creek and Tamaki Estuary
  • improving erosion and sediment controls on small building sites that would not otherwise be captured as part of monitoring and inspection
  • reducing contaminants captured and transported in stormwater to help meet national water quality standards incorporated into the National Policy Statement for Freshwater Management.

Find out more on the Water quality contaminant reduction page.


Urban and rural stream rehabilitation programme

This programme aims to improve the health of streams and reduce contamination heading to our harbours.

It also involves:

  • work to reduce erosion
  • advance stream ecology
  • improving environmental infrastructure.

This work will be carried out through community restoration initiatives, working with private landowners and restoring streams on public land.

Other aims include:

  • improving the ecological health of streams
  • enabling urban development in areas such as Omaru Creek, East Tamaki
  • stabilising areas of high stream bank erosion
  • reducing the amount of sediment in our harbours
  • protecting property and infrastructure.

Find out more on the Urban and rural stream rehabilitation programme page.


Onsite wastewater system compliance programme

This is a new regional compliance system requiring property owners with onsite wastewater systems to provide regular documentation that their units have been inspected and are in good working condition.

Proper maintenance reduces waterway contamination, especially in streams and lagoons.

Water quality monitoring and system checks will continue in high risk areas.

Find out more on the Onsite wastewater system compliance page.


Safe Networks

Where water quality poses a risk to public health – as indicated by the Safeswim programme – Safe Networks conducts monitoring and investigations in our streams, watercourses and stormwater network to identify contaminants and track them to their source.

Where contaminants are identified as being from natural or non-human sources (for example, birds, dogs, stock), we look at options for management and control.

There is a high risk of poor water quality at our beaches, particularly:

  • after heavy rain
  • in areas serviced by ageing pipe infrastructure
  • in areas with ageing onsite wastewater systems (private septic tanks)
  • following long spells of dry weather when rainfall can carry dirty water to our beaches, including water contaminated with bird and dog faeces.

Find out more on the Safe networks page.