Your supervisor has asked you to make a first approximation estimate of the maximum allo...

Your supervisor has asked you to make a first approximation estimate of the maximum allowable sustained pumping rate for a 1 m diameter well located in a confined aquifer. She has given you the well boring log shown below. Your firm uses a 2 m safety factor to ensure that the piezometric surface is not lowered below the aquiclude. She has said you may assume that the aquifer has a typical hydraulic conductivity. For a first trial assume that the drawdown in an observation well 100 m away from the pumping well is 0.0 m; that is, the pumping well’s radius of influence is ≤ 100 m.