AQTESOLV is software for groundwater mounding, too!
AQTESOLV
includes solutions by Hantush (1967) to compute the transient water-table rise
(groundwater mounding) beneath
rectangular and circular recharge areas (infiltration basins).
An easy-to-use wizard interface lets you to create grid files for use
with external contouring software. If you have
Surfer (v 6 or higher), AQTESOLV
automatically displays a contour plot of the groundwater mound for you!
The following figure is a 3-D depiction of a groundwater mound beneath a
rectangular seepage basin (generated with Surfer).