Tweed water safe to drink but not for washing

Recent rains have led to Tweed’s water appearing dirty. Photo Shutterstock.

Following recent rains the water supplied to the Tweed Shire catchment has been appearing dirty as a result of the high mineral content that has washed into the river following the long dry spell.

On Wednesday evening Tweed Shire Council stopped pumping water through the reticulation network in a bid to isolate the issue of dirty water to Murwillumbah. However, this has been unsuccessful and the dirty water has spread to other areas of the shire.

Residents are advised that while the water is unsightly, it is fit for drinking. However, it should not be used to wash clothes, particularly light-coloured clothes, as it may stain them.

Difficult treatment process

‘The levels of manganese in the weir pool are extraordinarily high,’ manager water and wastewater Anthony Burnham said.

‘These elevated levels of mineral are a result of the recent intense rain washing a lot of organic matter into the waterways, which has then drawn on the dissolved oxygen levels as it decays.

‘The dissolved oxygen level in the weir pool is now very low, exacerbating the minerals issue as the manganese and iron is dissolved and not in its usual particle form, making it harder to remove.’

Council is now drawing water from the top layers of the weir pool, where the water quality is better.

Removing iron and manganese from the water during the treatment process if finicky and requires constant fine-tuning of the treatment process.
‘Our water treatment process was unable to achieve that fine balance yesterday and the discoloured water is now more widespread throughout the reticulated water network,’ Mr Burnham said.

Check before you wash

‘Check your tap water by filling a small white-coloured container. If it’s coloured anything from a dark browny red to a light yellow, please do not wash your clothes in it… and if you already have don’t let them dry as the drying process fixes the stain. Soak your clothes again and then treat as directed with a citric acid product, available at most supermarkets.’

Residents with discoloured water are asked to contact Council on (02) 6670 2400 and crews will attend to flush the mains in affected areas. Calls to report discoloured water can also be made over the weekend.

‘Now that the discoloured water is in our system we literally have to let it work its way through and out,’ Mr Burnham said.
‘We are in the fortunate position, however, that despite being on Level 2 water restrictions the Tweed River is flowing over Bray Park Weir so we can flush the mains without running down our limited storage supply of Clarrie Hall Dam, which is at 81.4 per cent capacity.’

For more information on discoloured water and how to treat laundry, please visit Tweed Water Quality.

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5 responses to “Tweed water safe to drink but not for washing”

  1. Rob dawes says:

    Some councillor from the tweed shire want us to drink this water I don’t think so were r we going to get our clean water from if council stops the water buissness in our area water carriers give water to all Australian bottled water is very important an safe ot drink

  2. Rob dawes says:

    Tweed council has been down this road before they were fined 16000$for contaminated water don’t stop our water extraction buissness they give us clean water to drink when we carnt drink town dirty water

  3. Marion L Adams says:

    Thank you for telling us. Information is gold and it’s better to know than to guess. Appreciate your work and direction

  4. Rob dawes says:

    Oh no not again tweed council was fined 16000 last time thank goodness they have the water extraction in that area

  5. Janice Hall says:

    Yesterday brown water coming from tap. I live in chinderah.. It has stained my clothes after washing them. How is this possible to drink and be safe??

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