New Jersey Department of Environmental Protection (NJDEP), Bureau of Freshwater & Biological Monitoring, Water Monitoring & StandardsBathymetric surveying produces a detailed map of a waterbody's depth and subsurface contours. Bureau of Freshwater & Biological Monitoring (BFBM) personnel use sonar equipped fish finders to log depths linked to GPS data. Lakes are traversed using predetermined transects to ensure accurate coverage of the entire lake. The data logs are then uploaded to a cloud-based software for processing. The resulting data is translated into detailed bathymetric maps of waterbodies throughout the state. NOT FOR COMMERCIAL USE.ArcGIS FeatureLayerhttps://hub.arcgis.com/datasets/997dcf3ccdca422492c79e2dd690cc48_0engNew Jersey Department of Environmental Protection's (NJDEP) Bureau of GISPublicLake Bathymetry in New Jersey [New Jersey]Web servicesNew JerseyLast Modified: 2025-11-24