From the about page:

Akvopedia is a Web-based, free content project about water and sanitation subjects. The name Akvopedia is a portmanteau (combination of words and their meanings) of the words akvo (water in the language Esperanto) and encyclopedia. Akvopedia articles provide links to guide the user to related pages with additional information.

The Akvopedia is written collaboratively by volunteers and specialists mainly from the water and sanitation sector since the creation of Akvopedia during the summer of 2007.

Re-use Available under CC-BY-SA.

Access/bulk Material can be accessed on wiki. No facility for bulk download as far as I could tell.

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