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    • Water Quality Portal

    Metadata Updated: February 10, 2026

    The Water Quality Portal (WQP) is the premiere source of discrete water-quality data in the United States and beyond. This cooperative service integrates publicly available water-quality data from the United States Geological Survey (USGS), the Environmental Protection Agency (EPA), and over 400 state, federal, tribal, and local agencies.

    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 January 30, 2026
    Metadata Updated Date February 10, 2026
    Data Update Frequency R/P1D

    Metadata Source

    Harvested from EPA Non Geo Repository

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 30, 2026
    Metadata Updated Date February 10, 2026
    Publisher U.S. Geological Survey and U.S. EPA Office of Water (OW)
    Maintainer
    Identifier 28bc151c-da9c-4daa-a45d-cb92141cb6a2
    Data Last Modified 2021-12-14
    Public Access Level public
    Data Update Frequency R/P1D
    Bureau Code 020:00
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://edg.epa.gov/data/nongeo_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
    Data Quality True
    Harvest Object Id e6dab04b-7a9d-44d6-a582-46387a7b65dd
    Harvest Source Id 9c1c2b5b-7925-4ca2-a663-ca2131653db1
    Harvest Source Title EPA Non Geo Repository
    Homepage URL https://www.waterqualitydata.us/
    License https://edg.epa.gov/EPA_Data_License.html
    Primary IT Investment UII 020-000000103
    Program Code 020:112
    Source Datajson Identifier True
    Source Hash 303c8f97d8c6f6783d9c0ddff4fb52cbb9227e160266b31e8bdb1be7e8af3913
    Source Schema Version 1.1
    Temporal 1987/2021

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