Ancient aquifers are dropping as Tucson suburbs pump groundwater
Since 2009, the water level has dropped 7.3 feet a year in one of two SaddleBrooke Ranch wells and 1.7 feet a year in the other, says the Arizona Water Co., a private utility serving the development. This is one of many suburban developments surrounding Tucson where underground water tables are falling and are likely to fall much farther over the next century, state records show.