King CountyFor more information about this layer please see the GIS Data Catalog . Component Types for Control Other (Point)-Dry Well: Gravel filled holes or structures used for temporary storage and infiltration of stormwater runoff.-Injection Well: A structure that is deeper than it is wide that is designed to infiltrate stormwater runoff.-Full Dispersion: Features a native vegetated flowpath segment of at least 100ft (25ft for sheet flow from a non-native pervious surface) along the flowpath that runoff would follow upon discharge. The flowpath segment must be either onsite or in an offsite tract or easement area reserved for dispersion and should be designated as a "native growth retention area" on the flow control BMP site plan attached to the required declaration of covenant and grant of easement. Full dispersion involves use of splash blocks, rock pads, gravel filled trenches or sheet flow.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/79357348694646f7939871041d53caea_0engKing County GIS Open DataPublicControl Other Point [Washington (State)--King County]Web servicesWashington (State)--King CountyWashington (State)Last Modified: 2026-01-08