There’s growing concern about potential contamination of Arizona’s groundwater — an especially valuable resource because of the state’s dry climate. Add to that worries about water in private wells, much of which contains one or more kinds of pollutants, says Rebecca Muenich, a Fulton Schools associate professor of environmental engineering. Arizona’s continuing growth poses a challenge to keep sources of environmental contamination in check. And with the state still going through a long-term drought, officials are focusing on trying to ensure there are adequate quantities of water. But Muenich stresses that if the water is of poor quality, then having an abundant supply won’t solve any major problems.