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    • Produced water major ion geochemistry, water isotopes, radium content, field parameters, gas stable isotopes, and gas compositions from Niobrara Formation petroleum wells in the Denver-Julesburg Basin, Weld County, Colorado

    Metadata Updated: October 29, 2025

    This data release includes field parameters (pH and specific conductance), major ion geochemistry (B, Ba, Br, Cl, Ca, Fe, K, Li, Mg, Mn, Na, Si, SO4, Sr), total dissolved solids, specific gravity, water isotopes (delta-2H and delta-18O), and radium isotopes (226Ra and 228Ra) from produced water samples taken from petroleum wells producing from the Niobrara Formation in the Denver-Julesburg Basin, Weld County, Colorado. Additionally, gas composition and stable isotopes (delta-13C-CO2, delta-13C-C1, and delta-D-C1) from these wells are included. Major ion geochemistry, total dissolved solids, specific gravity, water isotopes, and radium isotopes were analyzed at the U.S. Geological Survey laboratories in Reston, Virginia, USA. Gas compositions were analyzed by a commercial laboratory. The data release includes four files, including one metadata file and 3 comma-separated (CSV) files.

    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 October 29, 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 October 29, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-6634dfdcd34ee921b712b410
    Data Last Modified 2024-10-21T00:00:00Z
    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 9e029a2b-5d4a-4750-a6f6-ddfada4ea74b
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -105.0500, 39.9900, -103.5700, 41.0000
    Source Datajson Identifier True
    Source Hash a7262a40ad0970a7994a520fc9450a1e5edd12c8371cdc782be44d85151ccd0f
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -105.0500, 39.9900, -105.0500, 41.0000, -103.5700, 41.0000, -103.5700, 39.9900, -105.0500, 39.9900}

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