Geohydrology of, and Simulation of Ground-Water Flow in, the Valley-Fill Deposits in the Ramapo River Valley, New Jersey

This report describes the results of an investigation of the geohydrology of the Ramapo River valley conducted during 1981-1984. The report includes information on the hydrogeologic setting, hydraulic properties, rates of pumping, water levels, and stream-aquifer interactions of the valley-fill deposits along the Ramapo and Mahwah Rivers and Masonicus Brook in the New Jersey part of the Ramapo River basin. Results of a simulation of the valley-fill aquifer near Mahwah, New Jersey, by means of a numerical model constructed to quantify the characteristics of the ground-water systems and to evaluate the hydrologic relations between ground-water withdrawals and streamflow also are presented.Prepared in cooperation with New Jersey Department of Environmental Protection. Water-Resources Investigations Report 90-4151.Purpose: To describe the results of an investigation of the geohydrology of the Ramapo River valley conducted during 1981-1984