Measuring helps us better understand our environment and monitor environmental change. We can track our progress toward our goals.


Reporting provides feedback about our work. It recognizes good performance and areas for improvement. Measurement and reporting serve as an evaluation tool to improve program effectiveness and target our work where it is needed.

What’s New?

TRCA field staff monitoring fish habitat
Monitoring Matters to Watershed Report Cards
April 30, 2018
The new 2018 Watershed Report Cards demonstrate the important role that long-term environmental monitoring plays in helping us to understand the progress we are making toward our conservation goals.




Explore the Report Cards

Want to Learn How Other
Conservation Authorities are Doing?

Check out Conservation Ontario’s Watershed Checkup webpage.

Watershed Checkup logo


Scientific study and data collection are essential to making key decisions concerning the protection of natural heritage in Toronto and region.

In 2001, Toronto and Region Conservation Authority (TRCA) developed the Regional Watershed Monitoring Program, a science-based, long-term monitoring initiative. The ecological data collected are used to inform TRCA’s key planning, implementation and reporting activities, and shared externally with partner municipalities, consultants, academia and other agencies.

TRCA’s Environmental Monitoring and Data Management team collects ecosystem data on:

• Terrestrial Habitat and Species
• Aquatic Habitat and Species
• Water Quality
• Water Quantity
• Climate
• Hydrology


DID YOU KNOW? In 2016, the TRCA monitoring team collected more than 12.5 million data records from almost 4,000 monitoring sites.

Through scientific data collection, TRCA’s Environmental Monitoring and Data Management team tell the stories about the changes affecting the natural areas and watercourses within our regions.