the delaware geological survey (dgs) is a scientific agency for the state of delaware, located at the university of delaware (ud), that conducts geologic and hydrologic research, service, and exploration. the mission of the dgs is to provide objective earth science information, advice, and service to citizens, policy makers, industries, and educational institutions of delaware. the dgs became formally affiliated with the university's college of earth, ocean, and environment (ceoe) in july 2008. most dgs scientists have secondary faculty appointments in the college's department of geological sciences.