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

Pumping-out test is the frequently used field method, as it involves discharging water from the ground.

The theory proposed by Dupuit’s on radial flow was modified by Thiem in 1906.

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.

For fine-grained type of soil, the value of K/A is 0.25 cubic meter per hour, per sq. m of the area under 1m depression head.

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

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

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.

Based on the assumption proposed by Dupuit’s theory, the velocity of flow is proportional to the tangent of the hydraulic agent instead of its sine.

Specific yield is an indication of the water yielding capacity of an unconfined aquifer.