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    • Groundwater water-quality data for select constituents in Williston Basin, Montana, North Dakota, and South Dakota for water years 1970-2014.

    Metadata Updated: November 12, 2025

    The groundwater, surface water, and lake water-quality data were compiled from Water Quality Portal (https://www.waterqualitydata.us/) (National Water Quality Monitoring Council, 2015), USGS’s NAWQA Project’s data compilation (Oelsner and others, 2017), and the Montana Bureau of Mines and Geology (Montana Bureau of Mines, 2021), The compilation contains data for chloride, pH, specific conductance, sulfate, total dissolved solids (TDS) collected between water year 1970 to 2014. In addition 10 metals (aluminum, arsenic, barium, chromium, copper, iron, lead, selenium strontium, and zinc) analyzed during water years 1993 through 2014.

    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 12, 2025
    Metadata Updated Date November 12, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 12, 2025
    Metadata Updated Date November 12, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-630f7b2cd34e36012efa0853
    Data Last Modified 2022-08-31T00:00:00Z
    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
    Harvest Object Id 4075c650-eae9-4af7-b565-632f047728c7
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -106.85246536525, 45.16552425207, -100.32994679366, 49.001023667169
    Source Datajson Identifier True
    Source Hash 388e9076d710130dc16beafc3d85bb16c27ce2202ca8e3c85cf26d7502610d9c
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -106.85246536525, 45.16552425207, -106.85246536525, 49.001023667169, -100.32994679366, 49.001023667169, -100.32994679366, 45.16552425207, -106.85246536525, 45.16552425207}

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