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    • Chemical concentration results for assessment of mixed-organic/inorganic chemical exposures in the southeast United States, beginning 2022.

    Metadata Updated: November 13, 2025

    This data release contains the concentration and quality-assurance results for inorganic constituents, organic compounds (volatile organic compounds [VOC], per- and polyfluoroalkyl substances [PFAS], pesticides, and disinfection byproducts [DBP]) collected in tapwater from locations in Alabama and Mississippi. Tapwater samples (11 public supply and 1 private well) were collected on December 13-14, 2022, in Dallas and Wilcox Counties, Alabama. Fifteen tapwater samples (14 public supply and 1 private well) were collected in Panola and Oktibbeha Counties in Mississippi on February 6-7, 2024. Pharmaceuticals (for Alabama samples only), VOC, and PFAS were analyzed at the U.S. Geological Survey (USGS) National Water Quality Laboratory (NWQL) in Denver, Colorado. Pharmaceutical samples for the 15 samples collected in Mississippi, were analyzed at the USGS Organic Geochemistry Research Laboratory (OGRL) in Lawrence, Kansas. Pesticides and DBP were analyzed at the USGS Organic Chemistry Research Laboratory (OCRL) in Sacramento, California. Inorganic contaminants were analyzed at the USGS Redox Chemistry Laboratory (RCL), Boulder, Colorado, and the Analytical Trace Element Chemistry Laboratory (ATECL), Boulder, Colorado. Microbiological indicators were analyzed for samples collected in Mississippi at the Michigan Bacteriological Research Laboratory in Lansing, Michigan.

    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 14, 2025
    Metadata Updated Date November 13, 2025

    Metadata Source

    Harvested from DOI USGS DCAT-US

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date September 14, 2025
    Metadata Updated Date November 13, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-6595c918d34e3265ab1538fb
    Data Last Modified 2025-01-29T00:00:00Z
    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 6168d0dd-80b6-44e2-b4ec-7fd181588e2e
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -90.8569, 30.2401, -84.9353, 34.9670
    Source Datajson Identifier True
    Source Hash dc53356d16455608b5e41223cba59f60ca61f8cdcf7056e8146b825f82f33f49
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -90.8569, 30.2401, -90.8569, 34.9670, -84.9353, 34.9670, -84.9353, 30.2401, -90.8569, 30.2401}

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