1. A well is located in an homogeneous confined aquifer of infinite extent. The hydraulic conductivity of the aquifer is 15 m/day with a storage coefficient of 0.005. The aquifer is 20 m thick and is pumped at a rate of 2,500 m#/day. What is the drawdown at a distance of 14 m from the well after one day of pumping? 2. A confined aquifer has a thickness of 6 m. The aquifer hydraulic conductivity and storativity are estimated to be 10 m/day and 0.00003, respectively. A fully penetrating well is pumped at a constant discharge of 20 L/s. An observation well is located 150 m from the pump well and the drawdown is found to be 4.5 m after 1,800 min pumping. (a) What drawdown would you expect at the observation well if the aquifer was infinite? (b) What is the possible explanation for the difference between your calculated drawdown and the observed drawdown. (c) Calculate the distance between the observation well and a possible image well. (d) What further information is required to locate the boundary? 3. A homogeneous isotropic confined aquifer is 12.5 m thick, and infinite in horizontal extent. A fully penetrating production well is pumped at a constant rate of 38 L/s. The drawdown in an observation well is 37.87 m after 12 hrs, and 49.9 m after five days pumping. (a) What is the hydraulic conductivity of the aquifer? (b) If the storage coefficient is 0.0005, what is the maximum distance that the observation well can be from the abstraction well for the approximation used in the first part of the question to hold