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...

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  • OGC WMS
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  • 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...

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  • OGC WMS
  • CSV
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  • 1 more in dataset
• State

  Small MS4 (Municipal Separate Storm Sewer Systems) Area

  Vermont Center for Geographic Information —

  The dataset contains the boundaries of the MS4 general permit, which are defined as the intersection of US Census urbanized areas and the watershed boundaries of the...

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

  i19 Stormwater Permitees Municipal

  State of California —

  The feature datasets contain Phase 1 and Phase 2 municipal separate stormwater sewer system (MS4s) permittees in California. These draft layers are based on 2010...

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  • ArcGIS GeoServices REST API
  • CSV
  • ZIP
  • GeoJSON
  • KML

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