Data Catalog

• Combined Sewer Outfall Sewer Shed

  District of Columbia —

  DC Water operates a wastewater collection system comprised of "separate" and "combined" sewers. Approximately two-thirds of the District is served by a separate sewer...

  • HTML
  • ArcGIS GeoServices REST API
  • OGC WMS
  • CSV
  • ZIP
  • GeoJSON
  • 1 more in dataset

• Storm Sewer System

  District of Columbia —

  The dataset contains locations and attributes of storm sewer systems including the combined sewersheds within the DC Water jurisdiction. There are small areas within...

  • HTML
  • ArcGIS GeoServices REST API
  • OGC WMS
  • CSV
  • ZIP
  • GeoJSON
  • 1 more in dataset

• Identify Your Watershed and Sewer System Area App

  District of Columbia —

  This app displays a series of general information for an address, location, or where the user clicks in DC. Some information returned are:Municipal Separate Storm...

  • HTML
  • ArcGIS GeoServices REST API

• MS4 Sewer Shed Single Polygon

  District of Columbia —

  Retired September 28, 2023. District MS4 Sewershed drainage areas. The dataset contains locations and attributes of the drainage areas of MS4 outfalls created as part...

  • HTML
  • ArcGIS GeoServices REST API

• Impervious Viewer in the District for Potential SRC Generation

  District of Columbia —

  This viewer shows impervious areas such as parking lots, driveways, and buildings in the District. The Department of Energy and Envrionment (DOEE) makes this viewer...

  • HTML
  • ArcGIS GeoServices REST API

You can also access this registry using the API (see API Docs).

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