A fully penetrating well pumps from a confined aquifer of thickness 20 m and K = 10 m/day. The radius of the well is 0.25 m and the recorded pump rate in the well is 100 m3/day at steady state. Assume that the radius of influence of the well is 1250 m. Compute the draw down at the well if it is located 100 m from an importable boundary?