M. H. Frimpter D.R. LeBlanc A.S. Goodman T. E. Reilly 1987 <div class="abstract-group "><div class="article-section__content en main"><p>Salt-water upconing describes the phenomenon where salt water is transported vertically upward under a well in response to pumpage in a fresh-water aquifer underlain by salt water. Sharp interface methods have been used successfully to describe the physics of upconing. A finite-element model is developed to simulate a sharp interface for determination of the steady-state position of the interface and maximum permissible well discharges. The model developed is compared to previous published electric-analog model results of Bennett and others (1968). Both methods are applied to a test case at Truro, Massachusetts, where maximum permissible discharges are determined by the finite-element model to range from 0.47 to 1.05 cubic feet per second for the Test Site No. 4 location.</p></div></div> application/pdf 10.1111/j.1745-6584.1987.tb02876.x en National Groundwater Association Analysis of steady-state salt-water upconing with application at Truro well field, Cape Cod, Massachusetts article