This map shows contours of the water table and the location of a factory that contaminated groundwater.Where would you drill wells to intercept the contamination?
A) right next to the factory
B) north of the factory
C) southeast of the factory
D) southwest of the factory

Question

This map shows contours of the water table and the location of a factory that contaminated groundwater.Where would you drill wells to intercept the contamination? 
A) right next to the factory 
B) north of the factory 
C) southeast of the factory 
D) southwest of the factory

Quizplus · Accepted Answer

The contours on the map suggest that the water table flows from southeast to northwest. Therefore, it would be most effective to drill wells southeast of the factory to intercept the contaminated groundwater before it spreads further northwest. Drilling wells right next to the factory (A) would only intercept a small portion of the contaminated water and drilling north (B) or southwest (D) would be too far upstream or downstream to effectively intercept the contamination.

This Map Shows Contours of the Water Table and the Location