Taste and odour more noticeable in Winnipeg's tap water
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WINNIPEG - August 18, 2005 - "Some residents may find that the taste and odour in their tap water is more noticeable and lasting longer this season than it normally would," says Kelly Kjartanson, Manager of the City's Environmental Standards Division.
“Algae produce substances that can give our water an unpleasant taste and smell, often described as musty,” says Kjartanson. He says Winnipeg water is routinely tested during the summer season for these substances. Recent tests show that there are more of these substances in Winnipeg’s water than in the last few years and they are lasting longer.
Kjartanson adds, “In addition to allowing us to meet drinking water quality guidelines, the water treatment plant we’re currently building will also reduce odour levels and improve the taste and appearance of our water.” The plant is scheduled to be operating by the end of 2007.
Algae are plants that occur naturally in bodies of water, including Shoal Lake, Winnipeg’s water source. When conditions are favourable, usually in the summer, the algae can grow in abundance, in what is called an ‘algae bloom’. Algae could be a factor until late fall.
Dr. Margaret Fast, Medical Officer of Health with the Winnipeg Regional Health Authority says, “These tastes and odours may be unpleasant, but algae normally found in Winnipeg’s water supply are not known to cause adverse health effects. Residents can continue to use the water, and there is no need to take special precautions.”
Increased algae growth can also cause home water treatment devices and water tap strainers and aerators to plug more frequently. A build-up of sediment may also occur in hot water tanks. Residents are encouraged to perform regular maintenance on these devices to ensure that they continue to function satisfactorily.
Water filters and other home water treatment devices with this certification on their label can improve the taste and odour of tap water:
ANSI/NSF Standard No. 42 for the reduction of taste and odour
For more information on Winnipeg’s water, residents can:
- Visit winnipeg.ca/waterandwaste/water
- See the two blue pages at the back of the MTS White Pages Phone Book
- Call the Water and Waste Department Customer Service Centre at 311
Last update: 30.09.2008
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