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

    Storm Drain Marker Installations

    Metadata Updated: April 8, 2026

    Storm Drain Marker Installations is a data layer showing where storm drain markers were installed on storm sewer catchments. Markers indicate that the sewer catchments drain to the Chesapeake Bay watershed and to report pollution to DC's 311 service line. Markers are installed by DOEE and volunteer groups. This dataset should not be considered as a complete capture of all DC storm drains. There are some storm drains that are knowingly not included within this layer. Catchbasin ID refers to DC Water's ID for each storm drain.

    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: Creative Commons Attribution

    Downloads & Resources

    Dates

    Metadata Created Date April 30, 2024
    Metadata Updated Date April 8, 2026

    Metadata Source

    Harvested from DC data

    Other Data Resources

    Additional Metadata

    Resource Type Dataset
    Metadata Created Date April 30, 2024
    Metadata Updated Date April 8, 2026
    Publisher City of Washington, DC
    Maintainer
    Identifier https://www.arcgis.com/home/item.html?id=22e954e7d625490f90c3ab7f486cb9cd&sublayer=47
    Data First Published 2017-02-28T22:24:31.000Z
    Data Last Modified 2026-04-05T07:30:24.000Z
    Category geospatial
    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 73d0f76a-0d52-4d5e-becb-a37998eb1390
    Harvest Source Id b05f955a-65d6-4288-9558-15a5ebc74e36
    Harvest Source Title DC data
    Homepage URL https://opendata.dc.gov/datasets/DCGIS::storm-drain-marker-installations
    License https://creativecommons.org/licenses/by/4.0
    Metadata Type geospatial
    Old Spatial -77.1057,38.8109,-76.9134,38.9839
    Source Datajson Identifier True
    Source Hash 3565221a4f1269b5fa3ad0c0f81e5ea1ecc2f2d0baa92ccbb692dbe1a1f3669b
    Source Schema Version 1.1
    Spatial {"type": "Polygon", "coordinates": -77.1057, 38.8109, -77.1057, 38.9839, -76.9134, 38.9839, -76.9134, 38.8109, -77.1057, 38.8109}

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