15.54.260: EFFECTIVE PRECIPITATION:
The city may consider effective precipitation (25% of annual precipitation) in tracking water use and may use the following equation to calculate maximum applied water allowance:
MAWA = (ETo - Eppt) (0.62) [(0.55 x LA) + (0.45 x SLA)] for residential areas.
MAWA = (ETo - EPPT) (0.62) [(0.45 x LA) + (0.55 x SLA)] for non-residential areas. (Ord. 2917, 2021)