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

    Metadata Updated: October 30, 2025

    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 Virgin Islands, Guam, American Samoa and the Commonwealth of the Northern Mariana Islands.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

    Downloads & Resources

    Dates

    Metadata Created Date September 13, 2025
    Metadata Updated Date October 30, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 13, 2025
    Metadata Updated Date October 30, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-283b1aa6-9268-4010-87da-45d496f63f90
    Data Last Modified 2020-11-17T00:00:00Z
    Category geospatial
    Category Tag 16E15F51 D96E 4051 9124 75665Abdc6Ff "Arctic","Permafrost and Arctic Landscapes","Ecosystem Vulnerability","Atmospheric, Earth and Ocean Sciences","Human Health","Water"
    Public Access Level public
    Bureau Code 010:12
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://ddi.doi.gov/usgs-data.json
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Harvest Object Id 4c405d49-4f5c-47ab-a92f-b2428ea1aad1
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -164.168, 17.731, -64.780, 70.281
    Source Datajson Identifier True
    Source Hash 2da5b4c42260a6248e216b68c02d7075b7b3eda5071b043c034a44557b16bd7e
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -164.168, 17.731, -164.168, 70.281, -64.780, 70.281, -64.780, 17.731, -164.168, 17.731}

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