Water Quantity (Hydrometric) Data
ENR Water Resources contributes funding to the operation of the Northwest Territories and Nunavut portions of the National Hydrometric Network. This network is operated by the Water Survey Division of Environment Canada.
Stream flows and lake levels are measured routinely. Historic data are published annually and are available from the Water Survey of Canada's National Water Quantity Survey Program website.
This site also includes real-time hydrometric data for many stations.