It has just been reported in the newspaper that hazardous waste was illegally dumped in 1985 in the landfill on your map (next page). Local residents are upset because the public water supply well (Well A) is a short distance downhill from the landfill. They have hired you, as a hydrologist, to investigate the situation. You find the topographic map provided, gather all the well logs for the area, and get to work.
a) The contours on your topo map show the elevation of the ground surface. Your first task is to construct a contour map of the water table. Draw your contours at 10 foot intervals , etc.). Use the following 3 sources of data:
✓ Water elevations in the wells, shown as dots on the map (note that these are elevations, not depths!)
✓ Spring locations (water table = ground surface elevation)
✓ Locations where the river crosses a contour line (water table = ground surface elevation)