Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Skip to content
  • Feedback

    • State-Specific Water Quality Standards Effective under the Clean Water Act (CWA)

    Metadata Updated: May 15, 2024

    EPA has compiled state, territorial, and authorized tribal water quality standards that EPA has approved or are otherwise in effect for Clean Water Act purposes. This compilation is continuously updated as EPA approves new or revised WQS.Please note the water quality standards may contain additional provisions outside the scope of the Clean Water Act, its implementing federal regulations, or EPA's authority. In some cases, these additional provisions have been included as supplementary information. EPA is posting the water quality standards as a convenience to users and has made a reasonable effort to assure their accuracy. Additionally, EPA has made a reasonable effort to identify parts of the standards that are approved, disapproved, or are otherwise not in effect for Clean Water Act purposes.

    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://www.epa.gov/wqs-tech/state-specific-water-quality-standards-effective-under-clean-water-act-cwa
    https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B6D51530E-0EFF-4126-8404-36C00A8F1548%7D
    https://edg.epa.gov/metadata/rest/document?id=%7B6D51530E-0EFF-4126-8404-36C00A8F1548%7D

    Dates

    Metadata Created Date November 29, 2020
    Metadata Updated Date May 15, 2024
    Data Update Frequency irregular

    Metadata Source

    Harvested from OW Non-Geo Records

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 29, 2020
    Metadata Updated Date May 15, 2024
    Publisher U.S. EPA Office of Water (OW) - Office of Science and Technology (OST)
    Maintainer
    Identifier {6D51530E-0EFF-4126-8404-36C00A8F1548}
    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/public/OW/metadata/OW.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 b67de2b2-d5ea-46e9-97b4-a8e140e56a62
    Harvest Source Id 8ed177f0-2564-4659-9197-8b64a5f0db3d
    Harvest Source Title OW Non-Geo Records
    License https://edg.epa.gov/EPA_Data_License.htm
    Old Spatial -180.0,18.0,-66.0,72.0
    Program Code 020:072
    Related Documents https://www.epa.gov/wqs-tech/state-specific-water-quality-standards-effective-under-clean-water-act-cwa, https://edg.epa.gov/metadata/catalog/search/resource/details.page?uuid=%7B6D51530E-0EFF-4126-8404-36C00A8F1548%7D, https://edg.epa.gov/metadata/rest/document?id=%7B6D51530E-0EFF-4126-8404-36C00A8F1548%7D
    Source Datajson Identifier True
    Source Hash 217f97f5446403485f6b875e29af24e45f167957d549e7669a3f6e09ac9c81ac
    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}

    Didn't find what you're looking for? Suggest a dataset here.