we have things called aircraft carriers that produce 100's of thousands of gallons of desal water daily, multiple operating rooms, self sustaining electrical power, their own landing strip, and helicopters to deliver relief supplies

we have people called Special Forces that routinely work with indigenous people in third world countries to improve their lives as well as regular troops that provide water systems to forward deployed forces in God forsaken regions of the world

we have church groups and NGOs like the TBM that help distribute individual filters (like the Sawyer .02 micron 5 gal system)