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

    CGS Mineral Hazards: Indoor Radon Potential Zones

    Metadata Updated: January 23, 2026

    This digital layer contains polygons (vector format) of portions of California designated as having high, moderate, low, or unknown potential for homes to exceed the U.S. EPA recommended radon action level of 4.0 picocuries per liter in indoor air. Only a portion of California is covered by the studies included in this dataset.

    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 January 23, 2026
    Metadata Updated Date January 23, 2026

    Metadata Source

    Harvested from State of California

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date January 23, 2026
    Metadata Updated Date January 23, 2026
    Publisher California Department of Conservation
    Maintainer
    Identifier 0128871f-fe2b-4958-bb3e-8825f7f3e27b
    Data First Published 2016-05-20T22:45:22.000Z
    Data Last Modified 2016-07-12T00:00:00.000Z
    Category Natural Resources
    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
    Harvest Object Id b3f4b821-4f9e-44e7-8844-31f3364f67e3
    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 cd39caf02b76677602af492049e67c6fbf4031ef0da6f6b6857725310003f470
    Source Schema Version 1.1

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