About our water supply network

Council maintains 699 km of reticulated pipelines. 12,080 properties are provided with this reticulated water service.

We operate

  • 31 reservoirs with a total capacity of 19,527 cubic metres 
  • Ten water treatment plants with a total capacity of 19,000 cubic metres per day
  • We also have an agreement with Hamilton City Council to take up to 5,000 cubic metres per day for parts of our district.

These 11 supply schemes provide the following areas with reticulated water:

  • Gordonton/Matangi/Tamahere/Tauwhare    
  • Horotiu/Ngaruawahia
  • Huntly
  • Hopuhopu/Taupiri
  • Meremere/Rangiriri/Te Kauwhata
  • Onewhero
  • Te Akau
  • Tuakau
  • Pokeno
  • Port Waikato
  • and Raglan

The reticulated water supply is provided by a network of intake structures, reservoir storage, pump stations and an extensive underground pipe network. This water is utilised by rural, urban and commercial users for domestic and business purposes. 

Plumbosolvent Water Notice to WDC Potable Water Customers

The Drinking Water Standards of New Zealand requires that drinking water suppliers pass on to consumers the following message from the Ministry of Health.

"Although the health risk is small, the Ministry of Health recommends that you flush a mugful of water from the tap each morning before use to remove any metals that may have dissolved from the plumbing fittings”.

Waikato District Council recommends this simple precaution for all households including those on public and private water supplies.


Registered water carriers

Potable water is water that is safe for human consumption.

Customers should always check that water supplies are coming from a Council and District Health Board registered carrier.

Find a registered water carrier in your area.


Rain Tanks 

All new premises in the Waikato District are required to have a rain tank under the Water Supply Bylaw.

This helps create more sustainable water supplies and encourages rainwater storage for non-drinking use.

A rain tank is required for all new premises that will:

  • be more than 30m2; and
  • connect to a Council water supply; and
  • have facilities that use water such as a toilet/laundry that the roof water could be used for.

How to maintain water quality

Water quality in improperly maintained tanks and roof catchment systems is a risk to public health. Preventative measures and corrective actions for safe rainwater harvesting include:

  • Keep roof catchments clean of moss, lichen, debris and leaves
  • Keep roof catchments clear of overhanging vegetation, branches provide roosting points for birds and provide access for animals, such as rodents and possums
  • If appropriate install gutter guards or screens as well
  • Install screened down pipe rainheads or other debris protection devices on each down pipe - Recommended screen mesh size is 4-6 mm, these should be self-cleaning devices
  • Install a first foul flush diverter to prevent contaminated water entering the tank. These should have automated diversion and drainage systems
  • In the event of any weed/chemical spraying in an adjacent location, advise the contractor that the roof is used for collecting drinking water. There should not be any overspray. Organochlorine pesticides should not be used
  • Prevent access by small animals to the rainwater tanks by screening all inlets and overflows, access hatches should be left closed
  • Inspect tanks annually - Have a professional clean the tanks
  • If tank contamination is apparent the water should be chemically disinfected and boiled before the water is used for consumption
  • For more information on maintaining the quality of your drinking water, visit http://www.drinkingwater.org.nz/default.asp