Zebra mussels in Shoal Lake will not impact Winnipeg drinking water, says city
Tim Shanks, manager of Winnipeg Water Services said Tuesday the city water treatment process would mitigate any negative result if the invasive species were to have found their way into Shoal Lake.
WATCH: The City of Winnipeg says the possible arrival of zebra mussels in the city water supply will not have any negative effect on water quality at the tap. Marek Tkach reports.
On Monday, a provincial report said a lone zebra mussel larva had been detected in the lake, which straddles the Manitoba-Ontario border.
Manitoba Sustainable Development and the Ontario Ministry of Natural resources and Forestry said they found the larva during the latest round of regular testing.
Shanks said the City of Winnipeg has its own extensive monitoring system, which is done during warm-weather months, which to-date have not indicated zebra mussels to be an issue.
Regardless, Shanks said the city has had a plan in place to deal with the potential for zebra mussels for some time.
While the filtration system is due for an upgrade, even the currently used 30-year old system would prevent any negative consequence from an invasion.
“This shouldn’t have any water quality at the tap or our treatment processes at the plant,” he said.
Zebra mussels don’t pose any concern to plant operations, Shanks said, since the mussels would not survive the water treatment process.
“They are not viable in the plant at all … this is a maintenance issue, a physical supply issue, and we’ve been planning for it for a long time. The customer shouldn’t see any impact in terms of water quality at the tap.”
WATCH: The effect millions of zebra mussels could have on Manitoba ecosystems, infrastructure
-With files from Elisha Dacey
© 2019 Global News, a division of Corus Entertainment Inc.