A municipal supply well with radius, Tv=0.1 m, has been installed into a confined aquifer that is bounded by a large lake (which acts as a constant head boundary along one edge of the aquifer). The well was installed 500m from the lake and well logs (obtained during boring of the well) indicate that the aquifer is approximately 10 m thick and the sands in the aquifer have an average porosity of about 0.3. The water agency has been pumping from the well at a rate of Q=0.1 m/s for several years and the resulting steady-state drawdown at the well is 30 m (below the lake surface). They would like to know how long it will take contaminants recently released in the lake to begin to arrive at their pumping will. Plot equipotential lines and streamlines resulting from pumping at the well and the boundary imposed by the lake and quantify the earliest arrival time of contaminants at the well. A municipal supply well with radius, Tv=0.1 m, has been installed into a confined aquifer that is bounded by a large lake (which acts as a constant head boundary along one edge of the aquifer). The well was installed 500m from the lake and well logs (obtained during boring of the well) indicate that the aquifer is approximately 10 m thick and the sands in the aquifer have an average porosity of about 0.3. The water agency has been pumping from the well at a rate of Q=0.1 m/s for several years and the resulting steady-state drawdown at the well is 30 m (below the lake surface). They would like to know how long it will take contaminants recently released in the lake to begin to arrive at their pumping will. Plot equipotential lines and streamlines resulting from pumping at the well and the boundary imposed by the lake and quantify the earliest arrival time of contaminants at the well