Source: Whangarei District Council
Updated: 14/03/2019 10:54 a.m.
We’re responsible for providing the “three waters” – drinking water, wastewater and stormwater.
We have some of the best drinking water in the country and we want to keep it that way. That’s why we are investing in one of our biggest ever projects this year with a $30 million new Whau Valley Treatment Plant. Our current plant was built in 1953. It has served us well but needs replacing.
Once built, the new plant will process up to 22,000 cubic metres of drinking water per day from the Whau Valley Dam and Hatea River, compared to the current 15,000 cubic metres.
The new plant will future-proof water supply for our growing District, featuring new filtration systems and the latest technology.
Whangarei has had a public water supply for more than 100 years.
Whangarei residents use 9 million cubic metres of drinking water a year.
We have seven Water Treatment Plants: Poroti, Maunu Springs, Maungakaramea, Mangapai, Ruakaka, Ahuroa and Whau Valley plus 44 water reservoirs.
An artist’s impression of the new $30 million Whau Valley Water
Treatment Plant which will be able to process up to 22,000 cubic
metres of water per day.
Whangarei has some of the highest quality drinking water in the
country and has seven water treatment plants across the District at
Poroti, Maunu Springs, Maungakaramea, Mangapai, Ruakaka,
Ahuroa and Whau Valley, plus 44 water reservoirs.
A cleaner harbour
Since we completed the last of our major wastewater upgrades there have been no major sewage spills in the harbour. This is great news but we want to make it even better! This is why we are now focusing on improving our stormwater systems across our District.
A lot of the services we provide are unseen and stormwater is a great example of this. Our stormwater network is largely hidden underground but plays a vital role, reducing flooding and erosion by diverting run-off from our roofs, roads and footpaths. An increased investment in stormwater will mean cleaner rivers and harbour. It will also help us prepare for the effects of climate change.
Our stormwater system is made up of 31,000 pipes, channels, inlets and manholes.
It is 579km in length and worth $271 million, which is around 14% of Council’s total assets.
Since we completed major wastewater upgrades over the last decade
there have been no major sewage spills in the harbour. We are now
focusing on improving stormwater systems across our District.
Turning methane into electricity
As a Council, we are always looking for ways to save ratepayers money – but it’s even better when a solution helps us to save money and is also good for the planet.
We have a new Sustainability Strategy that looks at ways we can better care for our environment. This year we will start using a second biogas generator which uses the methane gas from wastewater treatment to generate electricity.