Question

A well of 0.5m diameter penetrates fully into a confined aquifer of thickness 20m and hydraulic conductivity 8.210-4 m/sec. What is the maximum yield expected from this well if the drawdown in the well is not exceed 3m. The radius of influence may be taken as 260m?

Answer 1

I think 0.2335!!!!!!!!!________}_{&{&}_}&}&}&}_}...

Answer 2

Answer:

Answer is 44.5lit/sec

use the equation for Q= 2pi k b (h2 -h1)/ log (R2/R1)

R2 =260

R1 = 0.25

h2-h1= 3m