The mission of the DGS is to provide objective earth science information, advice, and service to citizens, policymakers, 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.

[2] A geologic survey of Delaware was originally authorized in 1837 for a period of four years under the direction of James C. Booth, State Geologist.

The 1951 statute founding the Survey contains its fundamental charges: study the geology of Delaware, investigate mineral and water resources, advise state government, and provide the results of its studies to the citizens and agencies of Delaware through publication and consultation.

Past Directors include: DGS research and service activities are focused on surficial and subsurface geology, hydrology/hydrogeology, natural hazards, topographic mapping, and information dissemination.