Exercise 9
An observation well located 75 m from a pumping well has a static water level of 175 m ASL. The pumping well is pumped for 36 hours at a rate of 545 m3/d. Calculate the drawdown and final head in the observation well at the end of the 36‑hour pumping period. Assume the following:
K = 0.61 m/d (7.06 x 10-6 m/s)
b = 75 m
S = 0.0004