I. The drawdown data shown below is from a monitoring well located a distance 25 m from the pumpi...
I. The drawdown data shown below is from a monitoring well located a distance 25 m from the pumping well in the direction of a surface water reservoir. The data shows that the confined aquifer is in hydraulic communication with the reservoir. If the average pumping rate is 550 m/d, estimate the transmissivity (8 pts) and storage coefficient (7 pts) of the aquifer Time (d) Drawdown (m) Time (d) 0.012 1 0.020 1.6 0.050 0.09 0.12 0.14 Drawdown (m) Time (d) Drawdown (m) 3.25 3.55 3.95 4.12 4.33 4.47 1.28 2.25 2.70 2.90 3.00 0.2 0.3 0.6 0.9 1.5 15 30 45 60 90 4.52 4.60 4.61 4.62 4.63 4.63
I. The drawdown data shown below is from a monitoring well located a distance 25 m from the pumping well in the direction of a surface water reservoir. The data shows that the confined aquifer is in hydraulic communication with the reservoir. If the average pumping rate is 550 m/d, estimate the transmissivity (8 pts) and storage coefficient (7 pts) of the aquifer Time (d) Drawdown (m) Time (d) 0.012 1 0.020 1.6 0.050 0.09 0.12 0.14 Drawdown (m) Time (d) Drawdown (m) 3.25 3.55 3.95 4.12 4.33 4.47 1.28 2.25 2.70 2.90 3.00 0.2 0.3 0.6 0.9 1.5 15 30 45 60 90 4.52 4.60 4.61 4.62 4.63 4.63