Water Survey of Canada


The Water Survey of Canada is a scientific branch of Environment and Climate Change Canada, responsible for monitoring the nation's freshwater resources.
The maintains Canada's hydrometric data network, widely referred to as HYDAT. Previously over 2,500 hydrometric gauges were maintained, however, currently less than 2000 stations provide active data. Stations or gauges record lake and river water levels that are used to compute river flow data.
Datasets developed by the WSC are used for water-resource management purposes in various policy programs by federal, provincial and municipal governments. This information is also available free to the public by searching . These datasets also contribute to ongoing efforts to measure local, regional and national impacts from climate change.