In: Civil Engineering
In a pumping test of a confined aquifer, the steady state water level in an observation well 10m from the pumping well was 38mOD and was 42 mOD in another observation well 100m from the pumping well. The water levels in both wells were steady at 50mOD before the test began and then water was pumped at a constant rate of 0.005m^3/s from the pumping well.
Estimate the aquifer transmissivity.
If the aquifer is 15m thick, estimate the hydraulic conductivity of the aquifer material
A third well in the same aquifer is 1000m away from the pumping well. Estimate the steady state drawdown in that well due to pumping
Why will this test not give a value for the storativity of the aquifer?
Transmissivity = 4.58*10-4 m2/s
Hydraulic conductivity = 3.05*10-5 m/s
Drawdown in well at 1000m distance = 4m