National hydrological data repository that provides access to historical and real-time information on the water resources of the United States and its territories, including Puerto Rico. The system integrates data from more than 1.5 million monitoring locations, using automated sensors and manual collection.
Collect and disseminate high-quality scientific data on water to help minimize the loss of life and property due to natural disasters, and support the effective management of water resources for agricultural, industrial and municipal uses.