Snohomish County Public Works Surface Water ManagementPermeable pavement is pavement that allows for rainwater to permeate the surface with minimal runoff. Permeable pavement can be found in parking lots, roads, and sidewalks. It is mapped to allow for inspection and maintenance as part of Snohomish County's National Pollutant Discharge Elimination System (NPDES) permit.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/50d06ae085f74754a7ae56d4b49d5e86_0engSnohomish County Open Data PortalPublicPermeable Pavement [Washington (State)--Snohomish County]Web servicesWashington (State)--Snohomish CountyWashington (State)Last Modified: 2022-11-09