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Staff Report and WELO Ordinance - StopWaste.Org

Staff Report and WELO Ordinance - StopWaste.Org

Staff Report and WELO Ordinance - StopWaste.Org

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SECTION B. WATER BUDGET CALCULATIONSSection Bl. Maximum Applied Water Allowance (MAWA)The project's Maximum Applied Water Allowance shall be calculated using this equation:MAWA = (ETo) (0.62) [(0.7 x LA) + (0.3 x SLA)]where:MAWA = Maximum Applied Water Allowance (gallons per year)ETo = Reference Evapotranspiration from Appendix A (inches per year)0.7 = ET Adjustment Factor (ETAF)LA = L<strong>and</strong>scaped Area includes Special L<strong>and</strong>scape Area (square feet)0.62 = Conversion factor (to gallons per square foot)SLA = Portion of the l<strong>and</strong>scape area identified as Special L<strong>and</strong>scape Area (square feet)0.3 = the additional ET Adjustment Factor for Special L<strong>and</strong>scape Area (1.0 - 0.7 = 0.3)Maximum Applied Water Allowance =gallons per yearShow calculations.Effective Precipitation (Eppt)If considering Effective Precipitation, use 25% of annual precipitation. Use the followingequation to calculate Maximum Applied Water Allowance:MAWA= (ETo — Eppt) (0.62) [(0.7 x LA) + (0.3 x SLA)]Maximum Applied Water Allowance =gallons per yearShow calculations.6 2

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