*Members* 134 *Description* Discussions and updates on options for
scaled-up biosand filter production facilities *Public website* http://www.cawst.org *Language*
English<https://groups.google.com/groups/dir?hl=en&sel=lang%3Den>
*Categories*
Science and
Technology<https://groups.google.com/groups/dir?hl=en&sel=topic%3D46406>
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*Group email*
bsf-production@googlegroups.com