Drought response

Stage one water restrictions are now in place

Residential water users cannot:

  • Use an outdoor hose or water blaster.
Commercial and other non-domestic water users cannot:
  • Use an outdoor hose or water blaster unless it is for a health, safety, emergency or biosecurity reason
  • Operate a car wash unless it uses recycled water
  • Water sports fields, plants or paddocks unless they have an irrigation system that is fitted with soil moisture or rain sensors.

A couple of important points:

  • If you have a rain water or grey water tank you can use that water as you wish ie: you can connect a hose to those tanks and wash your car or boat etc.
  • The restrictions only apply when connected to the metropolitan water supply network.

If you're wanting to report a person or company for misusing water, click the button below.

Unsure whether the restrictions apply to you? Click the map to view our metropolitan supply area.


To find out more about residential or commercial water restrictions, click the relevant button.


About the drought

Since the start of the year, the region has received significantly less rainfall than normal. This is having a big impact on our water supply. On 15th April, the total volume of water stored in our dams dropped below 50 per cent for the first time in more than 25 years. We desperately need to preserve what’s left. Please use water wisely and reduce wastage of this precious resource by:

  • Keeping your showers short (four minutes or less)
  • Run your washing machine and dishwasher only when they’re full
  • Don’t wash your car
  • Don’t water blast your house
  • Don’t hose your lawn
One thing we do want you to do is keep washing your hands to combat COVID-19.

Want to do your bit and become a water saving superhero?

Click the photo above for more information on why you should be saving 20 litres a day and how easy it is to do your bit.


The information below provides insight into the seriousness of the drought and why restrictions are in place.

Current rainfall and the forecast

Click to enlarge the graph to the left which shows this year's rainfall (to date) in the Hūnuas (our biggest catchment area) compared to normal rainfall for this time of year. The Hūnua Ranges is our biggest catchment area with dams covering 534 hectares.

The table below shows the likelihood of rain in the coming weeks. A negative figure (-) indicates a less than normal chance of rain, whereas a positive figure (+) indicates a higher than normal chance of rain.
Ranges 6th-12th July 13-19th July 20-26th July 27 July-2 August
Waitakeres 17% 0% -3% -2%
Hūnuas 1% 7% -4% -4%

Our cup needs topping up

From November 2019 to 6th July 2020, the average rainfall across our gauges has been 812mm. Compare that to 1062.5mm which is the normal amount of rainfall we’d expect over that period and you can see why we're a little disappointed. We’ve had 250.5mm less rainfall since November.

Click the picture (left) to see an animated comparison - actual rainfall versus normal rainfall.

Dam storage levels ebb and flow

Friday 10th July 2020
Total water storage = 57.20%

Recent rainfall has seen our total storage edge up above 56 per cent. But, that's well below 80.70% which is where our total storage should be for this time of year (see table to the left).

Our dams in the Hūnua Ranges are by far the biggest - combined they cover 534 hectares. In comparison, our Waitakere dams cover 162 hectares. Our total water storage is the combined  volume of water currently available in our dams.

The table below shows our total water storage on each respective Monday (eg: 6 July). It also shows the 24hr rainfall (to midnight on the respective Sunday) across our two main catchments.
Date Total water storage (%) 24 hr rainfall in Lower Huia catchment (Waitakeres) 24hr rainfall in Mangatangi catchment (Hūnuas)
Mon 8 June 45.09% 6.5mm 2mm
Mon 15 June 44.30% 0mm 0mm
Mon 22 June 45% 9.5mm 23.5mm
Mon 29 June 54.53% 10.5 5
Mon 6 July 55.78% 10.5mm 27.5mm

As dam levels continue to ebb and flow, we're maximising production elsewhere

  • To reduce the demand on our water storage dams, we are maximising production at our Waikato and Onehunga treatment plants.
  • We're working to return two former water sources – Hayes Creek Dam in Papakura and a bore in Pukekohe – to supply.

If you would like to report the misuse of water, please click here.

If you have a question that is not covered by our FAQs, please click here.