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10 <br />11 <br />12 <br />13 <br />14 <br />15 <br />16 <br />17 <br />18 <br />19 <br />20 <br />21 <br />22 <br />23 <br />24 <br />25 <br />26 <br />27 <br />28 <br />(5) irrigation design plan; and <br />(6) grading design plan. <br />Note: Authority Cited: Section 65595, Government Code. Reference: Section 65596, <br />Government Code. <br />§ 492.4 Water Efficient Landscape Worksheet. <br />(a) A project applicant shall complete the Water Efficient Landscape Worksheet which <br />contains two sections (see sample worksheet in Appendix B): <br />(1) a hydrozone information table (see Appendix B, Section A) for the landscape <br />project; and <br />(2) a water budget calculation (see Appendix B, Section B) for the landscape <br />project. For the calculation of the Maximum Applied Water Allowance and <br />Estimated Total Water Use, a project applicant shall use the ETo values from the <br />Reference Evapotranspiration Table in Appendix A. For geographic areas not <br />covered in Appendix A, use data from other cities located nearby in the same <br />reference evapotranspiration zone, as found in the CIMIS Reference <br />Evapotranspiration Zones Map, Department of Water Resources, 1999. <br />(b) Water budget calculations shall adhere to the following requirements: <br />(1) The plant factor used shall be from WUCOLS. The plant factor ranges from 0 <br />to 0.3 for low water use plants, from 0.4 to 0.6 for moderate water use plants, and <br />from 0.7 to 1.0 for high water use plants. <br />(2) All water features shall be included in the high water use hydrozone and <br />temporarily irrigated areas shall be included in the low water use hydrozone. <br />(3) All Special Landscape Areas shall be identified and their water use calculated <br />as described below. <br />(4) ETAF for Special Landscape Areas shall not exceed 1.0. <br />(c) Maximum Applied Water Allowance <br />The Maximum Applied Water Allowance shall be calculated using the equation: <br />MAWA = (ETo) (0.62) [(0.7 x LA) + (0.3 x SLA)] <br />The example calculations below are hypothetical to demonstrate proper use of the <br />equations and do not represent an existing and/or planned landscape project. The ETo <br />values used in these calculations are from the Reference Evapotranspiration Table in <br />Appendix A, for planning purposes only. For actual irrigation scheduling, automatic <br />irrigation controllers are required and shall use current reference evapotranspiration data, <br />such as from the California Irrigation Management Information System (CIMIS), other <br />equivalent data, or soil moisture sensor data. <br />(1) Example MAWA calculation: a hypothetical landscape project in Fresno, CA with an <br />23152.08101\8405361.1 <br />-11- <br />