Modeling of arsenic transport in groundwater using MODFLOW: A case study

Analysis of groundwater flow and transport processes of arsenic in English Bazar block of Malda district, located in West Bengal is presented in this study. The objectives of the analysis are: to simulate water and arsenic movement using a 3D solute transport model, to study variation of hydraulic heads in the groundwater of English Bazar Block, Malda district, West Bengal using MODFLOW and to study distribution and movement of arsenic in the groundwater of English Bazar Block, Malda district, West Bengal using MT3D. The objectives are addressed by simulation of steady and transient groundwater flow using the US Geological Survey three-dimensional finite difference code, MODFLOW, and the threedimensional advective-dispersive transport code, MT3D.