Contact(s)
The GRCA monitors river flows, reservoir levels, and weather
This up-to-the-minute information is vital to our important role of forecasting floods and issuing flood warnings.
We also monitor water quality at automated water quality stations at key locations. This information helps the GRCA, municipalities and others understand water quality trends and the impact of human activities on the health of the river system.
| River and Stream flows |
| Reservoir and Lake levels |
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| Water Quality data |
| Weather data |
Our Partners
The GRCA is part of the Provincial Flood Warning System. A portion of the funding for this data collection network is provided by the Province of Ontario through the Ministry of Natural Resources and Forestry.
Environment and Climate Change Canada plays a role in the Provincial Flood Warning System through the Federal-Provincial Cost Share Agreement.
Water Survey of Canada operates a portion of the stream gauges in the data collection network, as identified with an asterisk preceding the gauge name.
