Salt Lake, Sector V, Dum Dum and New Town may get 120 million gallons of filtered water daily under a project planned by the state government.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/filtered-water-salt-lake
[2] http://admin.indiaenvironmentportal.org.in/category/newspaper/telegraph-kolkata
[3] http://admin.indiaenvironmentportal.org.in/category/thesaurus/west-bengal
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/drinking-water
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-supply
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/salt-lake