Department of Energy and EnvironmentThis layer depicts the conglomeration of the 4 layers used for TMDLs. It contains TMDL Subsheds, Direct Drain Overland (not piped), Direct Drain Sewersheds (piped), and Combined Sewer (CSS) Subsheds. This layer provided the granularity needed to facilitate further analysis.ArcGIS DynamicMapLayerhttps://hub.arcgis.com/datasets/364e73a18cb242fba7f0bc3bb76fe754_67engOpen Data DCPublicDC Subwatersheds [District of Columbia--Washington]Web servicesDistrict of Columbia--WashingtonDistrict of ColumbiaLast Modified: 2024-09-26