DGS Publications

Title Authors Publication Date
RI55 Geology of the Milford and Mispillion River Quadrangles Ramsey, K.W., Groot, J.J.
RI53 Geology of the Seaford Area, Delaware Andres, A.S., Ramsey, K.W., Groot, J.J.
OFR25 Saturated Thickness of the Columbia Formation in Southern New Castle County, Delaware Groot, J.J., Demicco, P.M., Cherry, P.J.
B7 Engineering Materials of Northern New Castle County Ward, R.F., Groot, J.J.
B2 Geology and Ground-Water Resources of the Newark Area, Delaware with a Section on the Surface Water Resources Groot, J.J., Rasmussen, W.C., Hulme, A.E.