Evaluation of the aquifer parameters like Transmissivity, storage coefficient, lateral hydraulic conductivity and specific yield is very essential in assessing ground water potential of an area and aquifer system. Pumping tests are carried out for this purpose on each well drilled by the company after the well is fully developed. While conducting pumping tests, water levels are monitored in the tubewell in order to study the response of pumping on the water level. Where required piezometers are constructed along with the test well (tubewell) for monitoring the water levels. Various software packages are available with the company for processing and analysing pumping test data for different aquifer dispositions.