The following questions are based on Figure 25-3, a map of a hypothetical landscape with an effluent stream flowing from northeast to southwest. Water table contours are drawn at 2 intervals and flow lines show the direction of groundwater movement at the top of the zone of saturation. The waste pit in the north was dug down to a depth just slightly above the water in that location. A fenced pasture for grazing livestock is in the east. Two wells are shown, and the locations of three water quality sampling sites along the stream are indicated -foot If contaminated water is found waste pit or the pasture? Well A, is it more likely to have come from the (bWhy? 2f the water in Well B is contaminated, can groundwater pollution from the waste pit be blamed? bWhy or why not? (aIs it likely that the surface strcam water in Sample Site I will be contaminated by groundwater from either the waste pit or the pasture (b) Why or why not? 4l(a)/If the surface stream water in Sample Site 2 is contaminated by the entrance of groundwater, what is a likely source of the contamination? (b)Why? If the surface stream water at Sample Ste is contaminaci by tie entrance of groundwater, could the pollution have come from either the waste pit or the pasture? 5. (a) (b) How might you tell which is the case?