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Adopted 7/16/2001 - Bfective 8/15/2001 <br />(includes amendments effective through 2007) <br />City of San Leandro Zoning Code ~ Article 19 <br />than 5,000 square feet to facilitate water management; <br />17. Install high-flow sensors (ffow rxreters) that detect and report high <br />flow conditions created by system damage or malfunction <br />18. Install manual shut-off valves (such as a gate valve ball valve or <br />butterfly valve} as dose as possible to the point of connection of the <br />water supply, to minimize water loss ir7 case of an emergency (such <br />as a main Line break) or routine repair <br />10. Use iow volume irri atq ion to maximize water infiltration into the root <br />zone in mulched planting areas <br />20. Use subsurface irrigation in narrow or irregularly shaped areas <br />including turf, less than eight (8} feet in width in any direction- <br />2'f. Incorporate rain harvesting or catchment technologies such as <br />cisterns for storage and use of rainwater to satisfy a percentage of <br />the landscape irrigation requirements: and <br />22~ Incorporate stormwater best management practices to minimize <br />runoff and to increase on-site retention and infiltration are <br />encouraged. Examples inclc/de: <br />a. Rain gardens infiltration beds, swales and basins that <br />allow water to collect and soak into the ground <br />b. Constrr,/cted wetlands and retention ponds thaf retain <br />water, handle excess flow and lifter pollutants and <br />c. F'en~iocrs or porous surfaces fe..g. permeable pavers <br />or blocks. pervious or porous concrete, etc.) that <br />minimize runoff <br />F. Exceptions to Design Standards. <br />As part of the "Site Plan Approval" pursuant to Article 25, exceptions to the <br />requirements of this Section may be permitted if such requirements are <br />found not to be practical due to pre-existing site constraints. <br />4-1910 Acceptable Materials and Performance Standards <br />A. Minimum Required Landscape Areas Shall be Planted. The sole use of <br />crushed rock or gravel for large landscaped areas is prohibited (except for <br />walks and drainage swales). <br />B. Minimum Plant Sizes. Plant materials shall be sized and spaced to achieve <br />immediate effect and shall not be normally less than a fifteen (15) gallon <br />container for trees, five (5) gallon container for shrubs, and a one (1) gallon <br />container for accent plantings. The Zoning Enforcement Official may <br />approve smaller or require larger initial planting size to achieve specific <br />effects. <br />AR.19 <br />Page 15 of 198 <br />