The southwestern United States and northwestern Mexico have generally dry climates and rapidly growing populations. Both Nogales, Arizona, and Nogales, Sonora, have limited water resources and must rely on the drought-prone Santa Cruz River for 50 percent or more of their water supply.
A 6-page "how-to" guide on the basic principles of rain barrel water harvesting and information about installing your own system. This guide was prepared for the Nogales Rainwater Harvesting Open House.