AquaClara
http://aquaclara.org/
Scientists long ago discovered how to purify unsafe water. To us, the central issue has been in designing solutions that are both sustainable and scalable and that can reach the millions in need while at the same time continuing to function without sustained outside input. We are a 501(c)3 non-profit and our target populations are those individuals and families who live on $2 per day or less.