4. A plume of contaminants is moving toward a towns drinking water wells (see picture). The town wants to drill a well to capture the pollutant plume to protect their drinking water wells. For this analysis, assume the drinking water wells do not affect the groundwater flow pattern. The confined aquifer is 25m thick, the hydraulic conductivity is 6x10^-5 m/s, the regional groundwater gradient is 0.0003, and the maximum well pumping rate is 0.004 m3/s. Because of zoning ordinances, the well must be placed somewhere on the dashed line in the picture. Given this information, help the town answer these questions:

a. Can a single well capture the plume?

b. If so, where do you locate the well to be as close to the plume as possible and

still capture the entire plume (remember the zoning ordinance). Draw the capture zone

and well on the diagram below.

c. Does this protect the drinking water wells?