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    • Stream Water Quality Model

    Metadata Updated: February 10, 2026

    QUAL2K (or Q2K) is a river and stream water quality model that is intended to represent a modernized version of the QUAL2E (or Q2E) model (Brown and Barnwell 1987).

    Access & Use Information

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

    Downloads & Resources

    No file downloads have been provided. The publisher may provide downloads in the future or they may be available from their other links.

    References

    https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B9E391915-3D34-4E99-8ADF-50C911496A32%7D
    https://edg.epa.gov/metadata/rest/document?id=%7B9E391915-3D34-4E99-8ADF-50C911496A32%7D

    Dates

    Metadata Created Date January 30, 2026
    Metadata Updated Date February 10, 2026
    Data Update Frequency irregular

    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. Environmental Protection Agency, Region 4
    Maintainer
    Identifier 9E391915-3D34-4E99-8ADF-50C911496A32
    Data First Published 2014-01-01
    Data Last Modified 2014-01-01
    Public Access Level public
    Data Update Frequency irregular
    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
    Harvest Object Id 9801bd42-c8bc-4096-abc3-be730978a504
    Harvest Source Id 9c1c2b5b-7925-4ca2-a663-ca2131653db1
    Harvest Source Title EPA Non Geo Repository
    License https://edg.epa.gov/EPA_Data_License.html
    Old Spatial -180.0,18.0,-66.0,72.0
    Program Code 020:072
    Related Documents https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B9E391915-3D34-4E99-8ADF-50C911496A32%7D, https://edg.epa.gov/metadata/rest/document?id=%7B9E391915-3D34-4E99-8ADF-50C911496A32%7D
    Source Datajson Identifier True
    Source Hash 8a53afbeb94da1979a19073393362374947931e316fad1072275c78987888490
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -180.0, 18.0, -180.0, 72.0, -66.0, 72.0, -66.0, 18.0, -180.0, 18.0}

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