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

    Metadata Updated: January 16, 2026

    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 January 11, 2026
    Metadata Updated Date January 16, 2026

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 11, 2026
    Metadata Updated Date January 16, 2026
    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
    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
    Datagov Dedupe Retained 20260116141420
    Harvest Object Id 26c04f65-85b9-4534-b874-ae0c23554ac4
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial {"type": "Polygon", "coordinates": -164.168, 17.731, -164.168, 70.281, -64.780, 70.281, -64.780, 17.731, -164.168, 17.731}
    Source Datajson Identifier True
    Source Hash 8c180b18a8acea2c0013c7c7c4783d5a131207737a81671cb1c9a76b6ab8a3fa
    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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