Our present study with respect to arsenic in water from different environment of aquatic systems considering both surface and sub-surface geological condition with an emphasis to surface erosion and deposition of soil sediment in the Bangladesh Flood Plain and Deltaic Region reflects some clue for possibility of huge arsenic free reservoir water.

The present communication is the out come of our last 5 years field survey in 64 districts of Bangladesh and on the basis of 25897 hand tube-wells analysis for arsenic from four existing geomorphological regions of Bangladesh. In this report we will highlight (1) the area in Bangladesh where groundwater is not arsenic contaminated and possibility to use shallow hand tube-wells as potential groundwater resource for drinking purpose (2) arsenic contamination scenario of deep tubewells (above 100 meters) all over Bangladesh and suitable depth in arsenic contaminated area to get safe water.

Reprinted from The School of Environmental Studies, Jadavpur University, Kolkata, India