Two-Dimensional Plume in Uniform Ground-Water Flow

by John L. Wilson, (A.M.ASCE), Asst. Prof.; Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.,
Paul J. Miller, Formerly, Grad. Student, Dept. of Civ. Engrg., Massachusetts Inst. of Tech., Cambridge, Mass.,

Serial Information: Journal of the Hydraulics Division, 1978, Vol. 104, Issue 4, Pg. 503-514

Document Type: Journal Paper

Discussion: Codell Richard B. (See full record)
Discussion: Hunt Bruce (See full record)
Closure: (See full record)

Abstract: A simple analytical model of a two-dimensional plume of ground-water pollution has been developed and applied to the study of hexavalent chromium contamination of Long Island, New York. The model is based on a depth-averaged mass transport equation accounting for convection, dispersion, linear equilibrium adsorption, and decay, and is applicable to the study of pollution migration from point sources in shallow ground-water aquifers. The pollutant concentration description is based on an asymptotic solution to Hantush's well function for a leaky aquifer, and is accurate in the far field downstream of the source. The model results are easily visualized and evaluated when plotted as contour lines of equal concentration using a simple graphical procedure, making it convenient to examine the development of the plume over time and to evaluate the sensitivity of the plume to parameters.

Subject Headings: Groundwater flow | Two-dimensional flow | Plumes | Uniform flow | Groundwater pollution | Model analysis | Aquifers | Hydrologic models | Two-dimensional models | Chromium | Two-dimensional analysis | North America | United States | New York

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