FROM THE FIELD / WATER TESTING
Water Testing Map
Explore real water test data from the communities and locations we’ve tested.
- Locations Tested
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- Countries Reached
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- Latest Test
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OUR WORLD. OUR WATER.Only the places we’ve tested.
Drag to explore · Pinch or scroll to zoom
WATER TEST / PPM Green 0–50 Blue 51–150 Yellow 151–300 Red 301+
Every marker represents a published field test. TDS measures dissolved solids; the color bands alone do not establish drinking-water safety. Basemap: Natural Earth · Globe: MapLibre.