MUNDOOLUN residents have been warned to boil their drinking water after an "unusual test result" on Friday.
A Logan City Council spokeswoman said further investigation was needed to determine the nature of the contamination but residents were urged to boil tap water as a precaution.
She said drinking unboiled drinking water could lead to illness, especially for those who are very young, elderly or immune compromised.
The warning applies to residents of Anna Bertha Court, Anne Collins Crescent, Bauer Drive, Borrowdale Court, Bredalbane Street, Friendship Court, Golden Grove Court, John Collins Drive, Lady Penrhyn Court, Lavers Street, Portsmouth Court, Prince of Wales Court, Scarborough Court, Supply Court, William Humphreys Drive.
If residents suspect their tank water has been topped up with town water since Monday, January 19, then please refer to the Disinfection of Rainwater Tanks information sheet available at www.logan.qld.gov.au
"Logan City Council is working closely with Queensland Health to resolve the situation, and we are performing additional testing to determine the safety of the water supply within the Mundoolun estate," the spokeswoman said.
"This may take two to three days."
The boil water notice will stay in effect until the Logan City Council and Queensland Health are confident there is no public health concern. Updates will be provided to affected residents.
People should use cooled boiled water or bottled water for drinking, brushing teeth, washing and preparing food or beverages, preparing baby formula, making ice and bathing infants.
People should bring drinking water to a boil and then allow water to cool before using it or storing it in a clean, closed container for later use.
Kettles with automatic cut-off switches are suitable for producing boiled water.
Variable temperature kettles should be set to boil.
If you are concerned about your health contact 13 HEALTH (13 43 25 84), your local doctor, or local hospital and advise them of your concerns.
For more information phone Council on 3412 3412.