P.O. Box 368
Crestline, CA 92325
Founded in 2007, they are currently serving in 77 countries by teaching improved ways of water treatment and have helped nearly four million people. They do wells, rainwater catchment, water filtration, and other direct intervention, as well as teaching people to solve their clean water and hygiene needs. They have a close relationship with the Peace Corps and Return Peace Corps Volunteers. As of 2019, they are spearheading border-to-border efforts to make sure that the entire countries of Togo and The Gambia have access to clean, safe water.