For the development of groundwater resources in a given area, knowledge of the occurrence and movement of groundwater is required. In addition, the hydrological parameters of the aquifers are needed to decide the location and types of wells. The geological conditions of the area will influence the occurrence and movement of groundwater. Hydrogeology refers to the study of the laws [...]
The non-equilibrium equation can be used to determine the storage coefficient and transmissivity of confined aquifers. These aquifer constants are useful in the design of tubewells and for studying groundwater movement. Several approximate solutions have been developed for the purpose. Some of them are outlined in the following paragraphs: 1. Theis Method: This is a graphical method of superposition that [...]
Water entering the soil at the surface is called infiltration. It replenishes the soil-moisture deficiency and the excess moves downward by the force of gravity called deep seepage or percolation and builds up the ground-water table. The maximum rate at which the soil in any given condition is capable of absorbing water is called its infiltration capacity. Infiltration often begins [...]