The latest media reports about the arsenic contamination of ground water is that ten districts in south-west Bangladesh are found to have water with high level of arsenic content. Certain tubewells have been sealed by the authorities. This can hardly be regarded as the adequate overall solution.
Arsenic contamination is curable, sometimes simply drinking pure water is enough to cure a person.
Otherwise, there is medication which ensures total cure. So there is no need for undue alarm. However, lesions on the skins are certainly undesirable and agonising. These lesions are the first warnings. Therefore, precautions to prevent being covered with lesions is a far better way.