Improving Yankalilla, Normanville and Carrickalinga's water

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We are making an important change to your water supply.

We are improving the quality of your drinking water by changing the disinfection method of water sourced from the Myponga Reservoir from chlorine to chloramine.

This change will overcome water quality challenges due to source water and long pipelines in the region, as well as produce a better tasting water. It follows us making the same change for residents of Myponga in late 2018.

From Wednesday 17 March 2021, the new, improved chloraminated water will start flowing through the drinking water network to your taps.

Possible short-term inconvenience

There may be some practical matters for you to manage because of the change, but we're here to work with you through these.

As we change the water disinfection in your area to chloramine, the water running from your taps may be temporarily discoloured.

Discoloured water is normal and is a possible part of the change process. It's caused by organic matter - called biofilm - which may be present on the insides of pipes, being lifted off by the new chloramine as it begins to come through the network.

While the water may be slightly discoloured, it is still perfectly safe to drink.

What is biofilm?

Biofilm is the name of a collection of organic and inorganic materials that can collect, over time, on the insides of the pipes. It is not harmful.

How long could it last?

If there is any discoloured water coming out of your taps, we expect it to be temporary. When Myponga township's drinking water changed, only a few people noticed a little discolouration.



We are making an important change to your water supply.

We are improving the quality of your drinking water by changing the disinfection method of water sourced from the Myponga Reservoir from chlorine to chloramine.

This change will overcome water quality challenges due to source water and long pipelines in the region, as well as produce a better tasting water. It follows us making the same change for residents of Myponga in late 2018.

From Wednesday 17 March 2021, the new, improved chloraminated water will start flowing through the drinking water network to your taps.

Possible short-term inconvenience

There may be some practical matters for you to manage because of the change, but we're here to work with you through these.

As we change the water disinfection in your area to chloramine, the water running from your taps may be temporarily discoloured.

Discoloured water is normal and is a possible part of the change process. It's caused by organic matter - called biofilm - which may be present on the insides of pipes, being lifted off by the new chloramine as it begins to come through the network.

While the water may be slightly discoloured, it is still perfectly safe to drink.

What is biofilm?

Biofilm is the name of a collection of organic and inorganic materials that can collect, over time, on the insides of the pipes. It is not harmful.

How long could it last?

If there is any discoloured water coming out of your taps, we expect it to be temporary. When Myponga township's drinking water changed, only a few people noticed a little discolouration.