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Exhibit A: Proposed Amendments City of San Leandro Zoning Code - Article 19 <br />11. Manual shut -off valves (such as a gate valve, ball valve, or butterfly <br />valve) shall be required, as close as possible to the point of <br />connection of the water supply, to minimize water loss in case of an <br />emergency (such as a main line break) or routine repair. <br />12. Backflow prevention devices shall be required to protect the water <br />supply from contamination by the irrigation system. <br />13. The irrigation system shall be designed to prevent runoff, low head <br />drainage, overspray, or other similar conditions where irrigation water <br />flows onto non - targeted areas, such as adjacent property, non - <br />irrigated areas, hardscapes, roadways, or structures. Weather - <br />based irrigation controllers, soil moisture -based controllers or <br />other self - adjusting irrigation controllers, shall be required for <br />all irrigation systems <br />14. In mulched planting areas, the use of low volume irrigation is required <br />to maximize water infiltration into the root zone. <br />15. Sprinkler spacing shall be designed to achieve to achieve a uniform <br />precipitation rate with no overspray onto hardscapes. <br />16. Swing joints or other riser - protection components are required on all <br />risers subject to damage that are adjacent to high traffic areas. <br />17. Check valves or anti -drain valves are required for all irrigation <br />systems. <br />18. Narrow or irregularly shaped areas, including turf, less than eight (8) <br />feet in width in any direction shall be irrigated with subsurface <br />irrigation or low volume irrigation system. Overhead irrigation shall <br />not be permitted within twenty -four (24) inches of any non - permeable <br />surface. Allowable irrigation within the setback from non - permeable <br />surfaces may include drip, drip line, or other low flow non -spray <br />technology. <br />19. For the efficient use of water, all irrigation schedules shall be <br />developed, managed, and evaluated to utilize the minimum amount <br />of water required to maintain plant health. Irrigation scheduling shall <br />be regulated by automatic irrigation controllers. Overhead irrigation <br />shall be scheduled between 8:00 p.m. and 10:00 a.m. unless weather <br />conditions prevent it. If allowable hours of irrigation differ from the <br />local water purveyor, the stricter of the two shall apply. Operation of <br />the irrigation system outside the normal watering window is allowed <br />for auditing and system maintenance. <br />20. Stabilizing mulching products shall be used on slopes. It is highly <br />recommended that bio based products are used and petroleum <br />based products are avoided. <br />21. Compost shall be specified as the soil amendment according to <br />the outcome of the soil analysis, to bring the soil organic matter <br />content to a minimum of 3.5 percent by dry weight or one (1) <br />inch of compost. Adding compost is waived if the plant palette <br />AR.19 <br />Page 13 of 20 <br />