Our three waters systems are among the most successful in the country. Whangārei District’s public three waters system has a book value of $600m and replacement value of $1.2b.
Our drinking water situation has been managed carefully over the years to cover improvements to our system. As a result we had no water restrictions in 2019/2020 summer, and we were able to assist other northern councils’ water supplies during the drought.
In 2021, we opened our new $30m water treatment plant in Whau Valley, significantly increasing the quantity of water we can supply every day to 22,000 cubic metres.
Whau Valley Water Treatment Plant
We also increased the size of pipes from the Hātea River, to help reserve dam water for use during drier times. Across the District, Council supplies water to thousands of homes and businesses and the network is expanding every year.
Since 2009, around $60m has been invested in improved wastewater management, and we no longer have storm-related spills from our sewage system into our harbour. Investment has included new pumping stations and containment systems at Okara, Whareora and Tarewa. These stations can store and treat major storm water influxes to the sewer system before discharging to the main water treatment plant at Kioreroa Road.
Wastewater Treatment Plant
The Kioreroa plant has been expanded and upgraded to ensure that all discharges from it into its wetlands have been treated.
We have also installed and managed smaller schemes around the District and we have a steady maintenance and expansion programme.
Our district has stormwater systems which have developed with the built environment over generations. Recently we have started to work towards integrating all the information held that relates to stormwater management, collating this by catchments, and we have been getting ready to begin a major, decades-long integrated stormwater management system.
When complete, the aim would be for this system to be of an equal standard to our freshwater and wastewater systems.