Access to safe drinking water is an issue for thousands of Native people in the Southwest. Mining for uranium and other minerals, toxins leeching into well water, and inadequate infrastructure all play into water availability. Federal agencies, universities and environmental groups like the Navajo Water Project are trying to address contaminated ground water by researching contamination sources, studying health effects and bringing in clean water from elsewhere. As part of a series on toxic exposure in the Southwest, we’ll get an update on the problems and how people are working to fix them.