Saturated Thickness of the Water-Table Aquifer in Southern New Castle County, Delaware
Newark, DE: Delaware Geological Survey, University of Delaware
This map shows the saturated thickness of the water-table aquifer. This aquifer consists of the deposits of the Columbia Formation and those portions of the Magothy and Englishtown-Mt. Laurel formations, and Rancocas Group that are hydraulically connected with the Columbia deposits (see Groot, Demicco, and Cherry, 1983). For example, large, saturated thicknesses in the zone trending northeast-southwest near Townsend reflect the addition of the sands of the Rancocas Group to the total thickness of the sands of the overlying Columbia Formation.
water-table aquifer, Columbia Formation, Magothy Formation, Englishtown-Mt. Laurel Formation, Rancocas Group