Data Catalog

• Federal

  USGS Water-Quality Data for the Nation - National Water Information System (NWIS)

  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...

  • XML
  • XML
• Federal

  USGS Groundwater Data for the Nation - National Water Information System (NWIS)

  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...

  • XML
  • XML
• Federal

  USGS Surface-Water Data for the Nation - National Water Information System (NWIS)

  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...

  • XML
  • XML
• Federal

  U.S. Geological Survey National Real-Time Water Quality Data for the Nation Data Service

  Department of the Interior —

  The U.S. Geological Survey National Real-Time Water Quality (NRTWQ) Data Service (https://nrtwq.usgs.gov) provides computed concentrations and loads for sediment,...

  • XML
  • XML

You can also access this registry using the API (see API Docs).

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