ABSTRACT
A well test is a specific type of pumping test designed primarily to evaluate well characteristics. Successful completion of any groundwater resources system is possible only after an effective evaluation of aquifer and well characteristics in addition to the reliable predictions of the groundwater variables. Among such variables are the groundwater levels, drawdowns, and discharge which vary with time and space and they are interdependent among themselves. For instance, drawdown in a well is directly proportional with the discharge. To determine the characteristic shape of specific drawdown-discharge relationship a set of pumping tests, each with different discharge, must be conducted in the field. The specific capacity is defined as the ratio of discharge to the drawdown in a well. The change of groundwater level is originated by adding a column of water to the well. Ferris and his colleagues introduced the usefulness of the instantaneous line source slug test for determining aquifer transmissivity.
