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Federal
USGS Water-Quality Data for the Nation - National Water Information System (NWIS) recent views
Department of the Interior —
The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the... -
Federal
USGS Water Use Data for the Nation - National Water Information System (NWIS) recent views
Department of the Interior —
The U.S. Geological Survey's National Water-Use Information Program is responsible for compiling and disseminating the nation's water-use data. The USGS works in...