§ 15.11.650. Plant factor.

"Plant factor" is a factor, when multiplied by the reference evapotranspiration ("ETo", measured in inches per year), estimates the amount of water needed by plants. For purposes of this chapter, the plant factor range for very low water use plants is 0.0 to 0.1, the plant factor range for low water use plants is 0.1 to 0.3, the plant factor range for moderate water use plants is 0.4 to 0.6, and the plant factor range for high water use plants is 0.7 to 1.0. Plant factors cited in this chapter are derived from the publication "Water Use Classification of Landscape Species" ("WUCOLS") as may be amended. Plant factors may also be obtained from horticultural researchers from academic institutions or professional associations as approved by the California Department of Water Resources (DWR).

(Ords. 29243, 29671.)