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

    SPU DWW CSO Basins

    Metadata Updated: February 28, 2025

    This layer indicates which areas contribute sanitary and storm water flow to a CSO overflow point. Areas are broken down by NPDES Outfall Number.  The data source is DWW.cso_basin_plgn_pv. The layer continues to be updated as new information about the CSO system becomes available and as modifications to the system are completed. The boundaries in this layer were created and updated for purposes of developing a hydrologic and hydraulic computer model. The model was used to estimate CSO control volumes and develop CSO control alternatives. Estimation of control volume and alternative analysis did not require a parcel level of detail, so it is expected that the boundary is not always correct at the parcel level. In addition, the CSO basin boundary shapefile reflects both the sewer basin AND the drainage basin tributary to the overflow point, and these two basins do not always line up cleanly. This layer reflects the best compromise between the two boundaries.Updates as needed.

    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 February 28, 2025

    Metadata Source

    Harvested from Seattle JSON

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date February 28, 2025
    Metadata Updated Date February 28, 2025
    Publisher City of Seattle ArcGIS Online
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=1dd13c8a00ae4ff187cef29d208a5ada&sublayer=0
    Data First Published 2024-05-10
    Data Last Modified 2024-05-13
    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 201cdfc4-62ec-465b-8b64-9559e0ce5b5c
    Harvest Source Id f61de7a2-69cf-40a9-a1bc-dd9edb8f3fe5
    Harvest Source Title Seattle JSON
    Homepage URL https://data-seattlecitygis.opendata.arcgis.com/datasets/SeattleCityGIS::spu-dww-cso-basins-
    Metadata Type geospatial
    Old Spatial -122.4184,47.4952,-122.2417,47.6995
    Source Datajson Identifier True
    Source Hash 3283ee7cee759bc890b81bd098f6b49dccea7c486902b0a8e09215e0e91eae3c
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -122.4184, 47.4952, -122.4184, 47.6995, -122.2417, 47.6995, -122.2417, 47.4952, -122.4184, 47.4952}

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