75A - PH - WATER EFFICIENT LANDSCAPING

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(8) For calculation of the MAWA, the ETAF for special landscaped areas shall be set at 1.0. For calculation of the EAWU, the ETAF for special landscaped areas shall be calculated as the special landscaped area (SLA) plant factor divided by the SLA irrigation eff ciency factor. (9) Irrigation efficiency shall be calculated using the worksheet and equation presented in Appendix B on page B-2. (10) The Maximum Applied Water Allowance shall adhere to the following requirements: (a) The Maximum Applied Water Allowance shall be calculated using the equation presented in Appendix B. The example calculation in Appendix B is hypothetical to demonstrate proper use of the equation and does not represent an existing and/or planned landscape project. The reference evapotranspiration (ETo) values used in this calculation are from the Reference Evapotranspiration Table in Appendix C and are for planning purposes only. For actual irrigation scheduling, automatic irrigation controllers are required and shall use current ETo data, such as from the California Irrigation Management Information System (CIMIS), other equivalent data, or soil moisture sensor data. 2.3 Soil Management Report (A) In order to reduce runoff and encourage healthy plant growth, a soil management report shall be completed by the project applicant, or his/her designee, as follows: (1) Submit soil samples to a certified agronomic soils laboratory for analysis and recommendations. (a) Soil sampling shall be conducted in accordance with laboratory protocol, including protocols regarding adequate sampling depth for the intended plants. (b) The soil analysis may include, but is not limited to: i. soil texture; ii. infiltration rate determined by laboratory test or soil texture infiltration rate table; iii. pH; iv. total soluble salts; v. sodium; 5 75A-34