paper a new method is proposed, using genetic algorithms, to get the Transmissivity (T) and the storativity (S) of a confined aquifer,
supposing that a system of wells pumps from the aquifer. Specifically, supposing that the following parameters are available: the hydraulic
drawdowns at the location of one piezometer, the daily `volume of water extracted from each well and the locations of the neighbor wells,
genetic algorithms can find the pumping flow rates of the wells, the pumping time schedules and the aquifer characteristics. The optimization
is achieved creating populations of possible T, S and pumping time schedules, using Theis equation to conduct a transient flow analysis and
calculate the hydraulic drawdowns at the piezometer.The examined populations are evaluated using the Root Mean Squared Error (RMSE)
between the actual and the hypothetical drawdowns at the piezometer. Using this method, the aquifer characteristics can be found, without
requiring neighbor wells to have stopped pumping when the measurements are conducted