Washington State Department of Transportation (WSDOT), Environmental Services Office (ESO)This is a view of the ArtificialDischargePoint featureclass created with the following query: LifeCycleCurrentStatus= 'Active' AND (WSDOTownership in ('Yes', 'Unknown') OR WSDOTownership IS NULL) AND (SWLocationVerified IS NULL OR SWLocationVerified = 'No') This feature class contains WSDOT's stormwater artificial discharge points. An artificial discharge point is used to represent the estimated discharge point for systems ending in a polygon feature type (roadside slope polygon, dispersion area, infiltration pond, evaporation pond, etc.) where there is no discrete point of discharge. The majority of the data collected so far are within the Phase I and Phase II 2009 NPDES Municipal Stormwater Permit Areas.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/a16be08e5fc74bf7948e3a53560eadd2_6engState of Washington Geospatial Open Data PortalPublicWSDOT - Stormwater Artificial Discharge Point - Office [Washington (State)]Web servicesWashington (State)Last Modified: 2026-01-06