A crack in the western part of the red mud pond of Vedanta Alumina refinery has leaked into nearby water bodies and hence into the Vamsadhara river.
Links:
[1] http://admin.indiaenvironmentportal.org.in/feature-article/vedantas-red-mud-pond-leaks-vamsadhara-river
[2] http://admin.indiaenvironmentportal.org.in/category/author/latha-jishnu
[3] http://admin.indiaenvironmentportal.org.in/category/journal/down-earth
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vedanta-aluminium
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/river-pollution
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/vamsadhara
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/industrial-pollution
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/audiovisuals
[9] http://admin.indiaenvironmentportal.org.in/category/thesaurus/orissa
[10] http://admin.indiaenvironmentportal.org.in/category/thesaurus/mining
[11] http://admin.indiaenvironmentportal.org.in/category/thesaurus/water-pollution