Use the diagram below to help you answer questions 1 and 2. Assume the wells are solid pipes except at the bottom.
1. How does the water get into the pond? Explain as many pathways as you can.
Use the map below to answer question 3.
The contour lines on the map show the groundwater elevation above sea level (in meters).
The triangle represents a septic tank and drain field, and the circles show the locations of different wells.
3. If someone installed the septic tank incorrectly and septic wastes percolated into the groundwater, in which well would contaminated groundwater most likely be detected first? Select one response.
Why would contaminated water be detected first in the well you chose?