Water Finder, the smartphone app that helps people find clean water sources nearby. As people collect data about water sources, Water Finder also helps nonprofits identify where clean water is needed most.

This project is solving the Clean Water Mapping challenge.


Almost a billion people around the world walk for hours every day to get water. Even then, not all water is clean. Thousands of people die daily because they lack access to clean water.

We’re creating Water Finder (watch the video), a solution that helps people on the ground and organizations that serve developing countries. Individuals select what they want to use the water for and the distance they want to travel. Water Finder shows them the best water sources and people can see how long it takes to travel there and the expected waiting time.

Increasingly, people in developing countries have access to smartphones, even if they don’t have running water in their homes. People can use their smartphones and inexpensive sensors to gather data about water quality and usage. Water Finder combines this data with data from NASA’s satellites, like Soil Moisture Active Passive so organizations can predict where water is needed most and where to deploy sensors and other resources.

Nonprofit and governmental organizations can use Water Finder to see the water sources in a country as a whole, then zoom in to a single region. They can see what areas have more clean water sources and which water sources are near more people.

Water Finder, better water for more people.

Project Information

License: GNU General Public License version 3.0 (GPL-3.0)

Source Code/Project URL: https://github.com/ASJ3/SpaceApps2015


Water Finder video - https://www.youtube.com/watch?v=RmSqUksvC_4
Water Finder presentation of April 12, 2015 - https://github.com/ASJ3/SpaceApps2015/tree/master/Presentation
NASA SMAP Data - http://smap.jpl.nasa.gov/data/
WRI - Water Stress Projections - http://www.wri.org/resources/data-sets/aqueduct-water-stress-projections-data
WRI - Aqueduct Global Maps - http://www.wri.org/resources/data-sets/aqueduct-global-maps-21-data
Data for Africa - http://webfoundation.org/2015/04/data-for-africa-by-africa-rebooting-open-data-and-the-high-level-conference-on-the-data-revolution/
Data from Satellite for Developing countries - https://www.outernet.is/en/receive
Data from The Water Project used in Water Finder - http://thewaterproject.org/community/
Economist: Poor and Phones - http://www.economist.com/news/middle-east-and-africa/21566022-report-describes-sacrifices-poor-make-keep-mobile-phone-vital
WRI - Uganda water data - http://www.wri.org/resources/data-sets/uganda-gis-data#base
Journalism on African Water - https://waterjournalistsafrica.wordpress.com/
Global Water System Project - http://www.gwsp.org/products/current-opinion-in-environmental-sustainability.html


  • Ethan McMahon
  • Mark  Agnes
  • Alexis Saint-Jean