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    • Data to Support the Evaluation of Alternative Coatings for USGS Water-Quality Samplers

    Metadata Updated: September 12, 2025

    A series of blank samples were analyzed as part of a study to evaluate alternative coatings for USGS water-quality samplers. The open-file report to be published in association with this data is titled "Evaluation of Alternative Coatings for U.S. Geological Survey Water-Quality Samplers" (Thornton, 2025) and includes further details of the study. The five coating options evaluated were Duracoat, Plasti-Dip, Powder Coat, Raptor, and bare metal (no coating). Water-quality samples were processed to determine if any coating leached constituents that are commonly collected using these samplers. Samples were collected and processed in late 2020 at the USGS Virginia and West Virginia Water Science Center in Richmond, VA (USGS VA/WV-WSC), and analyzed for nutrients and trace elements by the USGS National Water-Quality Laboratory in Denver, CO. Analyte concentrations, measured in samples collected for each of the five sampler coating types, are reported in the file "Dataset_blank_sample_data.csv". A description of each parameter is provided in the file "Data Dictionary.csv".

    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.

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    Dates

    Metadata Created Date September 12, 2025
    Metadata Updated Date September 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 September 12, 2025
    Publisher U.S. Geological Survey
    Maintainer
    Identifier http://datainventory.doi.gov/id/dataset/usgs-679b864ad34ea8c183773670
    Data Last Modified 2025-04-17T00:00:00Z
    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
    Harvest Object Id 4142afd0-2252-46b7-a2df-3b3f8fdac764
    Harvest Source Id 2b80d118-ab3a-48ba-bd93-996bbacefac2
    Harvest Source Title DOI USGS DCAT-US
    Metadata Type geospatial
    Old Spatial -77.47526181, 37.63931167, -77.47526181, 37.63931167
    Source Datajson Identifier True
    Source Hash 27ca9536a0de62966806dd2dbfceec7e8d65d9a440015b34f6fe8a0482b9bc28
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -77.47526181, 37.63931167, -77.47526181, 37.63931167, -77.47526181, 37.63931167, -77.47526181, 37.63931167, -77.47526181, 37.63931167}

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