Question raised in Lok Sabha on Contamination of Water, 07/02/2017. Central Ground Water Board (CGWB) carries out groundwater quality assessment and monitoring across the country. Based on such assessment, locations in excess of permissible limits, as prescribed by Bureau of Indian Standards, have been identified which are given in the annexure.

Source : http://www.indiaenvironmentportal.org.in/content/439470/question-raised-in-lok-sabha-on-contamination-of-water-07022017/