What is the requirement for irrigation efficiency when using spray systems?

For irrigation systems that utilize spray methods, the requirement for irrigation efficiency is set at a minimum of 0.75. This means that at least 75% of the water applied through the system should be effectively utilized by the plants, taking into account factors like evaporation, runoff, and deep percolation. Achieving this level of efficiency is essential in California, especially considering the state's water scarcity issues.

In practical terms, a minimum efficiency of 0.75 ensures that water is used responsibly and sustainably, maximizing the effectiveness of the irrigation system. This standard helps landscape architects and irrigation designers create systems that not only meet aesthetic and functional plant needs but also adhere to environmental regulations and conservation practices. Meeting this efficiency benchmark reflects a commitment to water management best practices, essential for reducing waste and promoting sustainability in landscape design.