The discharge of spherical flow qs is given by, qs/q =2.3(r/b) log10 1000

The U.S. bureau of Reclamation (Earth Manual, 1960) has devised two types of pumping-in test.

Since the flow of water is not horizontal near wall and the flow no longer remains laminar. Thus, Darcy’s law equation is not valid near the well face.

If the well is open, radial flow takes place all around the well and there is no flow from the bottom of the well.

The parabolic depression formed when water is pumped from the aquifer through well can be called as cone of depression or the drawdown surface.

As the velocity of water is larger at the base, the width of base widens up and its diameter increases.

In the recuperation test, water level can be depressed to any level and the discharge from the well can be calculated.

A partially penetrating artesian well is the one in which the well screen does not penetrate to the full depth of the confined aquifer. Such wells extend only partly through the water bearing stratum.

Volume of water entering the well, when the head recuperates by dh is given by the equation: dV=Adh

By pumping test method, the value of storage coefficient ranges was found to be in between 0.00005 to 0.005.