Water indicators
Water quality and quantity
- Water quality in Canadian rivers (updated February 2025)
- Water quantity in Canadian rivers (updated March 2024)
- Shellfish harvest area water quality (updated February 2023)
Nutrients in water
- Phosphorus levels in the offshore waters of the Great Lakes (updated January 2025)
- Nutrients in the St. Lawrence River (updated June 2024)
- Reductions in phosphorus loads to Lake Winnipeg (updated January 2025)
- Nutrients in Lake Winnipeg (updated September 2018)
- Phosphorus loading to Lake Erie (updated December 2023)
Pressures on water quality
- Releases of harmful substances to water (updated August 2024)
- Marine oil spills (updated March 2025)
- Boil water advisories (updated January 2025)
- Water use in Canada (new February 2025)
Interactive maps
Page details
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