Ingram is an analytical chemist and a member of the Navajo Nation. She chairs the chemistry and biochemistry department at Northern Arizona University, and for years she and her students have been driving out to wells across the reservation with sample bottles, working through partnerships built slowly with chapter leaders.
The problem she kept running into was not only contamination. It was that nobody could tell which well was which. Water systems run by the Navajo Tribal Utility Authority are tested under the Safe Drinking Water Act. The privately dug household and livestock wells are not — they fall outside the requirement entirely, which is why the testing has depended on universities and community volunteers rather than regulators.
So the team built a map. Yellow dots mark the tribal utility's paid access points. Blue and red dots mark the free, federally funded sources at chapter houses, the colour showing whether the water is safe. A family can now check before they load the barrels, instead of defaulting to whichever well is nearest.
The mines closed forty years ago. The waste did not leave with them. Uranium seeps from hundreds of abandoned Cold War-era sites into the same sedimentary formations the wells draw from, and residents have carried the consequences in their kidneys and their bones.
For roughly three in ten households, water arrives by pickup truck — barrels and 55-gallon drums filled at a vending point, sometimes forty miles round trip, the same water going to the family and the livestock. Ten gallons per person per day, against a national average nearer eighty.
Ingram is careful about what her map can and cannot do. Knowing which well is safe does not make the safe one closer. For a family already driving an hour for water, the map may point to a source further still.
Information changes what people know. It does not change the distance.
What it does change is the choice. Before, a family drawing from an unregulated well was guessing. Now the guess has been replaced by a dot on a screen — small, and hard-won, and the result of years of someone loading sample bottles into a truck and driving out to look.