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Using the Jacob method: A pumping test was conducted in a 40-m-thick confined aquifer. Drawdown data plotted in figure 2 below were collected in an observation well 20 m away. The test well was pumped at the constant rate of 8.50 m hr. Determine the aquifer transmissivity, the storage coefficient and the drawdown after a year if pumping continues 3.0 Pumping test data 25 - 2.0 0.90 m Drawdown, ho-h (m) 1.5 1 1.0 0.5 6 = 1.72 x 10-br. 0 10 102 102 10-1 Time since pumping began, (hr)