Water indicators
Water indicators track water quality, quantity and usage, supporting the protection and sustainable management of this important resource.
Water quality and quantity
- Water quality in Canadian rivers (updated April 2026)
- Water quantity in Canadian rivers (updated March 2026)
Nutrients in water
- Nutrients in Lake Winnipeg (updated September 2018)
- Nutrients in the St. Lawrence River (updated June 2024)
- Phosphorus levels in the offshore waters of the Great Lakes (updated January 2025)
- Phosphorus loading to Lake Erie (updated November 2025)
- Reductions in phosphorus loads to Lake Winnipeg (updated February 2026)
Pressures on water quality
- Boil water advisories (updated January 2025)
- Marine oil spills (updated March 2025)
- Municipal wastewater treatment (updated September 2025)
- Releases of harmful substances to water (updated August 2025)
- Restoring the Great Lakes Areas of Concern (updated September 2025)
- Risk to soil and water from agriculture (updated August 2016)
- Water use in Canada (new February 2025)