The city’s ground water is not fit for consumption unless it is treated for both biological and chemical contamination. A ground water quality study conducted by the Central Ground Water Board in several parts of Hyderabad revealed that water tapped from the ground failed in a number of crucial parameters including tests related to total hardness and calcium, magnesium, chloride, sulphate and nitrate contents.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/ground-water-city-unfit-use
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/deccan-chronicle-hyderabad
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/hyderabad-t
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-quality
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/central-groundwater-board-cgwb
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/heavy-metals
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/fluoride
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/musi
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/groundwater-pollution
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution