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Water Resources Data

Water Resources Data

This portal provides access to a large selection of real-time and archived data on stream flow and water quality for surface and groundwater. Links are provided to the National Water Information System Web Interface (NWISWeb), which accesses data collected at approximately 1.5 million sites in all 50 states, the District of Columbia, and Puerto Rico. Data categories include current conditions information transmitted from selected surface and groundwater sites; descriptive site information; water flow and levels in streams, lakes, and springs; groundwater levels in wells; and chemical and physical data for all water sources. There is also a link to the 'Waterwatch' site, an interactive map that displays real-time stream-flow compared to historical conditions for the day of the year, as well as a link to the National Water Quality Assessment (NAWQA) data warehouse. Other links access materials on water use, acid rain, suspended sediment, and the Hydro-Climatic Data Network (HCDN).


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