Modified from Trapp Henry Jr 1992 Hydrogeologic framework of the Northern Atlant

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Modified from Trapp Henry Jr 1992 Hydrogeologic framework of the Northern Atlantic coastal plain in parts of North Carolina, Virginia, Maryland, Delaware, New Jersey, and New York: U.S.Geological Survey Professional Paper 1404-G.59 p. Refer the stratigraphic column of the cross section of the North Atlantic Coastal Plain aquifer system shows on the attached page. To simplify, lumo the chesapeake and surficial aquifers into a single hydro-stratigraphic unit (a single hydrologic "layer"). Assume that the Castle-Haune aquifer is continuous; although it is not shown to be in the attached cross section, the aquifer is indeed continuous in 3-D. The hydraulic conductivities of the aquifer and confining units have been measured by pumps rests, and average values are reported in the table below. What is the equivalent vertical hydraulic conductivity of the entire layered sequence at the Eastern edge of the cross section ? What is the equivalent horizontal hydraulic conductivity at this location? What is the hydraulic anisotrophy ( often given in a ratio such as 21) of the layered sequence at this location? If the hydraulic conductivity of the confining units was 0.5 ft/day (instead of 0.00. ft/day), what should the equivalent horizontal and vertical conductivities be? What would the anisotrophy be

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