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    • San Juan Watershed Lead Isotope Data

    Metadata Updated: April 21, 2025

    The U.S. Environmental Protection Agency characterized sediments and seeps/springs in the San Juan watershed located in southwestern Colorado and the four corners region of Colorado, New Mexico, Arizona, and Utah (western United States). The Datasets contain field and laboratory data that resulted from that sampling. Samples for this project were collected from 2018 to 2021. Results of new Pb isotope ratio measurements are provided for sediments (n = 96) collected from across the watershed and seeps/springs (n = 73) from the mineralized headwaters region of the watershed. The Microsoft Excel spreadsheets contain sample data and Quality Control data, including results of primary standards, second source standards, and sample duplicate analyses.

    Access & Use Information

    Public: This dataset is intended for public access and use. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date April 21, 2025
    Metadata Updated Date April 21, 2025

    Metadata Source

    Harvested from EPA ScienceHub

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 21, 2025
    Metadata Updated Date April 21, 2025
    Publisher U.S. EPA Office of Research and Development (ORD)
    Maintainer
    Identifier https://doi.org/10.23719/1532172
    Data Last Modified 2025-04-14
    Public Access Level public
    Bureau Code 020:00
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Data Dictionary https://pasteur.epa.gov/uploads/10.23719/1532172/documents/San%20Juan%20Pb%20Isotope%20data_Data%20Dictionary.xlsx
    Data Dictionary Type application/vnd.openxmlformats-officedocument.spreadsheetml.sheet
    Harvest Object Id 7801c304-8b60-4d15-a5c5-6073dda01f0e
    Harvest Source Id 04b59eaf-ae53-4066-93db-80f2ed0df446
    Harvest Source Title EPA ScienceHub
    License https://pasteur.epa.gov/license/sciencehub-license.html
    Program Code 020:000
    Publisher Hierarchy U.S. Government > U.S. Environmental Protection Agency > U.S. EPA Office of Research and Development (ORD)
    Source Datajson Identifier True
    Source Hash 088fcb6b53ebc79ac737d027b6b2d4a019b25c92a6575d6925edddf50b128cbf
    Source Schema Version 1.1

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