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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

Evaluation of California Weather-Based "SMART" Irrigation Controller Programs - Smart controllers (commonly referred to as ET controllers, weather-based irrigation controllers, smart sprinkler controllers, and water smart irrigation controllers) are a new generation of irrigation controllers that utilize prevailing weather conditions, current and historic evapotranspiration, soil moisture levels, and other relevant factors to adapt water applications to meet the actual needs of plants. University of CA Center for Landscape and Urban Horticulture

U.C. Evaluation of Weather-sensing Irrigation Controllers -Evaluation of Weather-sensing Irrigation Controllers. University of CA Center for Landscape and Urban Horticulture


For more specific information about various types of irrigation systems click on the links below

Sprinklers in the home landscape

Drip Irrigation in the home landscape