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

    COVID-19 Sewershed Restricted Case Data

    Metadata Updated: November 23, 2025

    The California Department of Public Health (CDPH) aggregates confirmed cases of COVID-19 by sewershed restricted locations. Confirmed cases are defined as individuals with a positive molecular test, which tests for viral genetic material, such as a polymerase chain reaction test.

    Since wastewater data available starts from January 1st, 2021, rather than the beginning of the COVID-19 pandemic in 2020, the cumulative counts of the confirmed cases variable are shown as “NA”.

    Please note that values less than 5 for confirmed cases are masked (shown as “Masked”) if the sewershed population size is 50,000 or fewer, in accordance with de-identification guidelines. Values less than 3 for cases are masked (shown as “Masked”) if the sewershed population size is between 50,001 and 250,000. For no confirmed cases reported, values are set as zero.

    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 November 27, 2024
    Metadata Updated Date November 23, 2025

    Metadata Source

    Harvested from State of California

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date November 27, 2024
    Metadata Updated Date November 23, 2025
    Publisher California Department of Public Health
    Maintainer
    Identifier 3e1c16a0-43d6-42fb-888f-1532c843b190
    Data First Published 2023-06-12T16:55:36.243969
    Data Last Modified 2025-11-20T01:12:14.432492
    Category COVID-19, Health and Human Services
    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 ac03656e-4045-45da-8e73-4b78fdb71ebb
    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 0e26b21a26d83487a07319d91f06f7763384d1a7301ba6d9fa8179c404ab8972
    Source Schema Version 1.1

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