Report confirms monitoring and treatment met provincial requirements through 2025
THUNDER BAY — The City of Thunder Bay has released its 2025 Drinking Water Quality Annual Report, detailing water quality results collected between Jan. 1 and Dec. 31, 2025.
The annual report is prepared under Ontario’s Drinking Water System Regulation (O. Reg. 170/03), part of the Safe Drinking Water Act, 2002, and outlines how the City treats and delivers drinking water to residents.
What’s in the report
According to the City, the report includes:
-
An overview of how Thunder Bay treats and distributes drinking water
-
Water quality monitoring results from 2025
-
Tips residents can use to help protect water quality at home
-
Information on the operator certification process for City drinking water staff
“Our water is monitored around the clock to ensure it meets strict safety standards. This report confirms the City of Thunder Bay continues to provide high-quality, safe drinking water,” said Michelle Warywoda, Director – Environment Division.
The City adds it remains focused on maintaining a safe, reliable, and sustainable water supply—supporting public health, fire protection, and the local economy.
How to access the report
Printed copies are available at:
-
City Clerk’s Office (City Hall)
-
Environment Division (Victoriaville Civic Centre)
-
All Thunder Bay Public Library branches
-
Bare Point Water Treatment Plant
A digital copy is available at: thunderbay.ca/drinkingwater
