In Tucson, Subsidies for Rainwater Harvesting Produce Big Payoff

THE CITY OF Tucson, Arizona, officially got serious about rainwater harvesting five years ago, viewing it as a cost-effective tool to reduce demand for potable water. In 2012, the city’s water utility, Tucson Water, began offering rebates to its residential customers to subsidize installation of rainwater catchment systems, both to divert water onto landscaping and store it in cisterns. Later, it expanded the program to include grants and loans to help low-income households harvest rainwater.