Ambur, Vaniyambadi and Pernambut areas are reportedly bearing the brunt
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/effluents-eat-life-groundwater-ryots
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/hindu-chennai
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vellore-d
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/farmers
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/total-dissolved-solids
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/common-effluent-treatment-plant-cetp
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-resources
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/state-pollution-control-board-spcb-0
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/environment
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/agriculture
[12] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution
[13] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tamil-nadu