Discoloured water

Outside the Water Treatment Station upgrade

Outside the new Water Treatment Station upgrade

Hamilton water is 'A-a' graded by Ministry of Health and is a quality assured supply.

Although the water is treated at the Hamilton Water Treatment Station (WTS), there are always very fine sediments that remain in the water. These sediments do settle and accumulate over time. With sudden increases in water velocity or reversal of flow direction due to network operations or demand, e.g., during and after public holiday period, these accumulated sediments can become suspended and 'discoloured water' occurs. This is a risk associated with all water supplies. Despite the occasional brown water, the water is safe to drink and complies with the New Zealand Drinking Water Standards.

Council has engaged external experts over the last two years and is continuing to look at solutions and strategies to reduce these incidences. The action Council has implemented, in short-term, is to increase flushing frequencies. This has reduced number of incidents . The planned flushing programme is managed in such manner that residents and businesses are informed no less than 24 hours prior the flushing activities. The notice card we use includes advice for residents and businesses around flushing time. As a long-term solution, Council is further upgrading the WTS, which will reduce the fine sediments entering into in our network.

The nature of discoloured water is such that the risk can never be eliminated.

If the you requires more than the normal supply for what ever reasons, it is wise to provide such additional safeguards privately.

Inside the Water Treatment Station upgrade

What should you do if your water is discoloured?

  • Turn on all outside water taps and run them until the water is clear.
  • If you have a filter system, avoid using it until after the water is clear.
  • Ensure that tap aerators (gauze) are regularly cleaned with bleach or disinfectant.
  • DO NOT run your hot water taps. Avoid using any hot water, whenever possible, until after the water is clear.
  • DO NOT use your washing machine until after the water is clear.

Contact


 
 
 
 
 
 
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City Waters
Level 5, Council Offices
Garden Place
Hamilton City Council
Private Bag 3010
Hamilton 3240
Phone: 838 6999
Fax: 838 6988