One of the doctors on a forum I am a member of posted a link to the Wilderness & Environmental Medicine website. His link pointed to an article discussing water disinfection. The article piqued my interest due to the title and because I know that water is key to handling any disruption length. After downloading and reading their research, I felt it would be helpful to post the file up on my Research Downloads page (scroll to the bottom) so you can have the information as well.