Seine River First Nation
Design of upgrades and expansion to the water treatment plant underway, operational improvements ongoing
Project tracker
Projected lift date: TBD
Seine River First Nation in Ontario is home to 363 people on reserve. The community is working to upgrade and expand their water treatment plant, with funding from Indigenous Services Canada (ISC).
There is 1 long-term drinking water advisory affecting 90 homes and 8 community buildings:
- A boil water advisory was set on the Seine River Public Water System in February 2025 and became long-term in February 2026
The advisory was initially issued because the water treatment system is not meeting the disinfection requirements needed to provide safe drinking water to the community. In July 2026, the community completed work to replace the standpipe, which is an above‑ground tank that stores treated drinking water. Design of the water treatment plant expansion and upgrade is near complete.
Once the plant expansion and upgrades are complete and consistent operations are in place, the water will be tested multiple times to confirm it meets all applicable guidelines and standards. Then the community should be able to lift the advisory.
Explore the map of long-term drinking water advisories on public systems on reserves.