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

    Non-Mainline Detention Polygons

    Metadata Updated: November 22, 2025

    Active, proposed, abandoned and removed secondary sewer and storm pipes that are not part of the mainline system (i.e. side sewers, service drains, etc.). Side Sewers are wastewater pipes from buildings and establishments that connect to mainline pipes. Service drains are stormwater pipes from buildings that connect to mainline pipes. Probable flow is the derived use classification based on what is the best estimation of usage broken out by drainage and sanitary.Refreshed weekly.

    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: No license information was provided.

    Downloads & Resources

    Dates

    Metadata Created Date February 28, 2025
    Metadata Updated Date November 22, 2025

    Metadata Source

    Harvested from Seattle JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 28, 2025
    Metadata Updated Date November 22, 2025
    Publisher City of Seattle ArcGIS Online
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=7542b9f543574bc8873789d8234523eb&sublayer=4
    Data First Published 2024-06-17
    Data Last Modified 2025-11-17
    Category geospatial
    Public Access Level public
    Metadata Context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
    Metadata Catalog ID https://cos-data.seattle.gov/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 7949d9b9-5e23-4917-b598-7e0764ba4978
    Harvest Source Id f61de7a2-69cf-40a9-a1bc-dd9edb8f3fe5
    Harvest Source Title Seattle JSON
    Homepage URL https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::non-mainline-detention-polygons-2
    Metadata Type geospatial
    Old Spatial -122.4236,47.3694,-121.7747,47.8588
    Source Datajson Identifier True
    Source Hash 726a2a21d00c7635b655a2033c9d944677f7e6aff9d8e59022e2eab8ecda0618
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.4236, 47.3694, -122.4236, 47.8588, -121.7747, 47.8588, -121.7747, 47.3694, -122.4236, 47.3694}

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