Waste generated in construction activities and debris from Chamba town are being dumped into the Henwal river.
Links:
[1] http://admin.indiaenvironmentportal.org.in/news/waste-being-dumped-henwal-river
[2] http://admin.indiaenvironmentportal.org.in/category/author/vinod-chamoli
[3] http://admin.indiaenvironmentportal.org.in/category/newspaper/pioneer-dehradun
[4] http://admin.indiaenvironmentportal.org.in/category/thesaurus/uttaranchal-uttarakhand
[5] http://admin.indiaenvironmentportal.org.in/category/thesaurus/tehri-garhwal
[6] http://admin.indiaenvironmentportal.org.in/category/thesaurus/building-materials
[7] http://admin.indiaenvironmentportal.org.in/category/thesaurus/rivers
[8] http://admin.indiaenvironmentportal.org.in/category/thesaurus/solid-waste