Affiliations: Senior Research Fellow, Tamil Nadu Agricultural
University, Coimbatore - 641003, Tamil Nadu | Director, Water Technology Centre, Tamil Nadu
Agricultural University, Coimbatore - 641003, Tamil Nadu | Research Scholar, Department of Soil Science and
Agricultural Chemistry, Tamil Nadu Agricultural University, Coimbatore -
641003, Tamil Nadu
Abstract: Ground water is an important source of water for drinking,
irrigation and industrial purposes. To maintain a sustainable agricultural
production and to arrest the depletion of water table, there is a need for
micro level study of groundwater potential. In this work, an attempt has been
made to estimate the amount of ground water for the Gundar river basin, which
can be used to plan a suitable usage of ground water. Visual MODFLOW was used
for groundwater flow simulation in the study. The model when applied to the
study area showed the permissible error of ± 10–20% in 87.3%
of computed values from the actual values of well heads. The results showed
that the flow direction more or less coincided with the general slope and there
was an inflow and outflow across the western and eastern boundaries. The
coastal alluvial formations showed the intrusion of seawater into inland
freshwater aquifers.
Keywords: Groundwater modelling, groundwater recharge, river basin, water table
