https://www.humanitarianresponse.info/en/topics/environment/page/wash
[Accessed: 17.01.2017]
This is a repository page compiled by the Humanitarian Response Network for WASH in humanitarian settings. It contains links to external guidance and documentation on topics such as: Integrating Critical Environmental Issues into WASH Cluster Activities by Care, UD toilet and composting toilets in emergences (including operations and maintenance guidance) by Oxfam and Excreta Disposal in Emergences: A field Guide by Unicef.