Jodi Peterson
Associate Editor
Arizona’s San Pedro River, already in danger of running dry, may face a new threat — from a former federal official who once defended it. The San Pedro is the last free-flowing river in the desert Southwest and a critical stopover for migratory birds, but for years, runaway development has slurped up its waters faster than rainfall can replace them. Water experts predict the river will eventually stop flowing altogether (see our stories “A Thirst for Growth“, “Death of the San Pedro: Not if, but when” and “Of politics and the river“).
In 1999, Bruce Babbitt, President Clinton’s Interior Secretary and a former governor of Arizona, threatened to put the San Pedro in federal hands because local government allowed too much siphoning of the underground water that feeds the river. Now, Babbitt, who has long advocated not for stopping growth, but for controlling it and limiting its impact, is helping plan a 1,600 home subdivision near a major tributary of the San Pedro. Despite the development’s water-conserving design, it could draw enough groundwater from a new well to threaten the main river. Tony Davis reports in the Arizona Daily Star:
A consultant working for the development says the pumping won’t lower the water table enough to harm the cottonwood-draped San Pedro — but several Tucson-area groundwater experts disagree.
Although the river itself is nearly 10 miles from the pumping area, those experts are concerned about the effects on the much closer Babocomari River, a major tributary of the San Pedro.
Environmentalists are also concerned the project will fragment the ranch’s increasingly rare grassland wildlife habitat.
Even without the new subdivision, other growth in the area will soon suck even more water — the Fort Huachuca military base plans to add another 3,000 personnel and the city of Sierra Vista is expanding at two percent a year. Et tu, Bruce?