The Stat Govt. decided to prepare an action plan which aims to cover all the arsenic affected villages of West Bengal with a long term solution of potable drinking water supply. Towards this direction, all the public hand pump tubewells (1,32,000 nos.) in the 79 arsenic affected blocks were tested in the laboratories by the active participation of the local Panchayet . Safe hand pump tubewells were painted blue involving and the community was involved to generate awareness among the people. Tubewells were located by GPS instruments and the test results were plotted on GIS based maps. Based on these GIS maps, hydro geological studies conducted by various other Departments of the State Govt., and efficacy of the various mitigation measures already implemented by the Govt., a master plan was prepared to cover all the 3229 villages with a long term solution.