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(6) grading design plan. Note: Authority Cited: Section 65595, Government Code. Reference: Section 65596, Government Code. § 492.4 Water Efficient Landscape Worksheet. (a) A project applicant shall complete the Water Efficient Landscape Worksheet which contains two sections (see sample worksheet in Appendix B): (1) a hydrozone information table (see Appendix B, Section A) for the landscape project; and (2) a water budget calculation (see Appendix B, Section B) for the landscape project. For the calculation of the Maximum Applied Water Allowance and Estimated Total Water Use, a project applicant shall use the ETo values from the Reference Evapotranspiration Table in Appendix A. For geographic areas not covered in Appendix A, use data from other cities located nearby in the same reference evapotranspiration zone, as found in the CIMIS Reference Evapotranspiration Zones Map, Department of Water Resources, l 999. (b) Water budget calculations shall adhere to the following requirements: (1) The plant factor used shall be from WUCOLS. The plant factor ranges from 0 to 0.3 for low water use plants, from 0.4 to 0.6 for moderate water use plants, and from 0.7 to 1.0 for high water use plants. (2) All water features shall be included in the high water use hydrozone and temporarily irrigated areas shall be included in the low water use hydrozone. (3) All Special Landscape Areas shall be identified and their water use calculated as described below. (4) ETAF for Special Landscape Areas shall not exceed l .0. (c) Maximum Applied Water Allowance The Maximum Applied Water Allowance shall be calculated using the equation: MAWA = (ETo) (0.62) [(0.7 x LA) + (0.3 x SLA)] The example calculations below are hypothetical to demonstrate proper use of the equations and do not represent an existing and/or planned landscape project. The ETo values used in these calculations are from the Reference Evapotranspiration Table in Appendix A, for planning purposes only. For actual irrigation scheduling, automatic irrigation controllers are required and shall use current reference evapotranspiration data, such as from the California Irrigation Management Information System (C1MIS), other equivalent data, or soil moisture sensor data. (1) Example MAWA calculation: a hypothetical landscape project in Fresno, CA with an irrigated landscape area of 50,000 square feet without any Special Landscape Area (SLA= 0, no edible plants, recreational areas, or use of recycled water). To calculate MAWA, the annual reference evapotranspiration value for Fresno is 51.1 inches as listed in the Reference Evapotranspiration Table in Appendix A. MAWA = (ETo) (0.62) [(0.7 x LA) + (0.3 x SLA)] MAWA =Maximum Applied Water Allowance (gallons per year) ETo =Reference Evapotranspiration (inches per year) 0.62 =Conversion Factor (to gallons) 0.7 = ET Adjustment Factor (ETAF) LA =Landscape Area including SLA (square feet) 0.3 =Additional Water Allowance for SLA SLA =Special Landscape Area (square feet) MAWA = (51.1 inches) (0.62) [(0.7 x 50,000 square feet) + (0.3 x 0)] = 1,108,870 gallons per year To convert from gallons per year to hundred-cubic-feet per year: = 1,108,870/748 = 1,482 hundred-cubic-feet per year 9