Boil Water Advisory Issued for Portions of the City of St. Thomas
Posted on 07/11/2025

Southwestern Public Health’s Medical Officer of Health, Dr. Ninh Tran, has issued a Boil Water Advisory for specific areas within the City of St. Thomas. This advisory follows the detection of bacteria in the municipal water supply, as confirmed by recent water sample testing.

Affected Areas
The advisory applies to the following locations: East Avenue, Chester Street, West Avenue, Devonshire Place, Balflour Street, Ada Street, Parkside Drive, Bell Drive, Henry Street, Glenbanner Street, Willow Street, Wilson Avenue from #2 – 193, Bush Line (40359), Elm Street from #25-80, Palm Street from #4 – 17, Sunset Drive from #126-188 and Pinafore Park.

The splash pad at Pinafore Park is closed until the Boil Water Advisory is lifted. Please note that water bottle fill stations and washrooms at the park are also affected by the advisory.

Map of affected area
 
What This Means for Residents
Residents and businesses in the affected areas should bring tap water to a rolling boil for at least one full minute before using it for:

-Drinking
-Preparing infant formula or juice
-Brushing teeth
-Washing fruits and vegetables
-Making ice

Boiling water kills harmful bacteria and ensures it is safe for consumption.

Duration of Advisory
The Boil Water Advisory will remain in effect until bacteriological testing confirms the water is safe to use without boiling. Southwestern Public Health will provide updates as more information becomes available.

Where to Find More Information

For more detailed information and answers to frequently asked questions, please visit the Southwestern Public Health website:

Boil Water Advisory Information

If you have questions or concerns, please contact the Environmental Health Department at 1-800-922-0096.