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Figure P2.4 is a topographic map of an area that contains an industrial landfill that is leaking leachate into the groundwater system. Points a, b, and c are wells that were drilled at the same time and penetrate the water table. The depth of the water table in each well is 12 ft for a, 10 ft for b, and 27 ft for c. Scale bar is 10 ft. See Video 2 at https://youtu.be/GBpY_Vi0zMw.

1 Assuming that the water table is planar, construct structure contours for the water table.

2 Draw the cross section X to X’, showing the topography and the water table.

3 Shade the area where the properties would be impacted by the pollutant plume.