Snohomish County Public Works Surface Water ManagementCatch basins are storm water features designed to catch and store water, or to aid water in infiltration and filtration. Catch basins are 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/72498cdd10964c17959b93e581f0d01a_0engSnohomish County Open Data PortalPublicCatch Basins [Washington (State)--Snohomish County]Web servicesWashington (State)--Snohomish CountyWashington (State)Last Modified: 2022-11-09