Analysis of saltwater upconing beneath a pumping well

Discussion on: “Experimental observations of saltwater up-coning” by Werner, A.D, Jakovovic, D., Simmons, C.T., 2009. Journal of Hydrology 373, 230–241

“…A similar result (salinity-impacted wells despite stable up-coning conditions) was observed by Reilly and Goodman (1987). We remark also that Experiment 5 of Jakovovic et al (2012) can also be characterised as a subcritical case according to the theory of Zhang et al (1997).…”

“…As such, up-coning criticality is concentration-dependent, as opposed to sharp-interface criticality (assumed by Zhang et al 2012). Further research is needed to identify better the salinities associated with critical states of up-coning, following the initial work of Reilly and Goodman (1987) that compares dispersive and sharp-interface representations of up-coning. Reilly and Goodman (1987) found that the 50% salinity contour was a reasonable approximation of the predicted position of a sharp interface in their investigation.…”

Ground water in freshwater-saltwater environments of the Atlantic Coast

“…This distinction is not made in this report because there are often both lateral and vertical components to a particular saltwater-intrusion problem, and because the net result-contamination of a freshwater aquifer-is the same for either type of saltwater movement. Another term that has been used to describe a specific type of vertical saltwater intrusion is saltwater upconing, which refers to the movement of saltwater from a deeper saltwater zone upward into the freshwater zone in response to pumping at a well or well field (Reilly and Goodman, 1987). An example of saltwater upconing that occurred on Cape Cod, Massachusetts, is shown in figure 22.…”

Assessment of Available Coastal Groundwater Resources Using Strack's Single-potential Analytical Solution

“…(2) The sharp-interface approach (Reilly and Goodman, 1987) assumes immiscible freshwater and saltwater separated by abrupt (sharp) interface. As the transition zone between two waters is ignored, it is not as accurate as the aforementioned approach.…”

“…Reilly and Goodman (1987) Strack (1976) can be used when simplifying assumptions are applicable (Cheng et al, 2000;Park and Aral, 2003).…”