Irrigation in the Landscape
The average American household uses 320 gallons of water per day, about 30 percent of which is devoted to outdoor uses. More than half of that outdoor water is used for watering lawns and gardens. Nationwide, landscape irrigation is estimated to account for nearly one-third of all residential water use, totaling nearly 9 billion gallons per day. (US EPA)
Water Use Calculator - Saving water at home is easy. First, use this simple calculator to find your average annual water use and learn ways to save. Then talk with the other members of your household about the ways everyone can make water conservation a daily habit.
Selecting a Smart Irrigation Controller - University of CA Center for Landscape and Urban Horticulture
Irrigation Controllers for the Homeowner - CA Department of Water Resources
U.C. Evaluation of Weather-sensing Irrigation Controllers -Evaluation of Weather-sensing Irrigation Controllers. University of CA Center for Landscape and Urban Horticulture