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    • This is a Non-Federal dataset covered by different Terms of Use than Data.gov.

    i19 Stormwater Permitees Municipal

    Metadata Updated: July 24, 2025

    The feature datasets contain Phase 1 and Phase 2 municipal separate stormwater sewer system (MS4s) permittees in California. These draft layers are based on 2010 census data and they have not been updated since 2013 and there are no current plans to include them as a SWRCB web service. Most of the Phase 1 permittees encompass an entire metropolitan area. The Municipal Storm Water Program manages the Phase I Permit Program (serving municipalities over 100,000 people), the Phase II Permit Program (for municipalities less than 100,000), and the Statewide Storm Water Permit for the State of California Department of Transportation. The State Water Resources Control Board (State Water Board) and Regional Water Quality Control Boards (collectively, the Water Boards) implement and enforce the Municipal Storm Water Program.

    Access & Use Information

    Public: This dataset is intended for public access and use. Non-Federal: This dataset is covered by different Terms of Use than Data.gov. License: See this page for license information.

    Downloads & Resources

    Dates

    Metadata Created Date July 23, 2025
    Metadata Updated Date July 24, 2025

    Metadata Source

    Harvested from State of California

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date July 23, 2025
    Metadata Updated Date July 24, 2025
    Publisher California Department of Water Resources
    Maintainer
    Identifier f95a1bca-7b13-4b82-8893-730fbd642229
    Data First Published 2023-02-08T03:37:46.000Z
    Data Last Modified 2025-05-29T16:07:11.000Z
    Category Natural Resources, Water
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Schema Version https://project-open-data.cio.gov/v1.1/schema
    Catalog Describedby https://project-open-data.cio.gov/v1.1/schema/catalog.json
    Datagov Dedupe Retained 20250724164837
    Harvest Object Id ce767f88-6fd4-4119-a41f-3d45ed1f59e4
    Harvest Source Id 3ba8a0c1-5dc2-4897-940f-81922d3cf8bc
    Harvest Source Title State of California
    License http://www.opendefinition.org/licenses/cc-by
    Source Datajson Identifier True
    Source Hash 612233883644f5cd8568914d5aacb387ffdedeb2509e8be7b39474fec5f8cd51
    Source Schema Version 1.1

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