resources to economic development, land-use planning, emergency management, public health, and recreation. Active project topics include: STATEMAP (surficial geologic formation identification and mapping) Sub-surface geologic formation identification and mapping Aquifer extent / depth and water availability Water supply (surface water in streams, groundwater, reservoirs) Coastal processes (tidal floods, marsh inundation, beach erosion) Groundwater monitoring and water quality Groundwater modelling Natural hazards, such as floods, droughts, earthquakes, sinkholes Topographic mapping Wastewater and rapid infiltration basin systems (RIBS) State geospatial / GIS infrastructure and coordination Data and Publications The DGS has published over 210 publications through its publication series. Publications represent the results of original professional research and, as such, are used by professionals and the public. All of the publications are free to read and download as PDF files. Many of the recent publications are accompanied by digital datasets, usually in spreadsheets or GIS datasets. Most of these data are also available as Web Mapping Services. Partners Delaware Department of Natural Resources and Environmental Control United States Geological Survey References External links List of all DGS publications List of all DGS datasets University of Delaware Geological surveys State agencies of Delaware Government agencies established in 1954