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Adopted 7116/2001 -Effective 8/15!2001 City aF San Leandro Zoning Code -Article 19 (includes amendments effective through 2007) 20 Stabi(izing mulching products shall be used on slopes. It is highly recommended that bio based products are used and petroleum based products are avoided. E. Recommended Design Standards. It is recommended that all landscape projects: 1. Protect and preserve existing native vegetation and use local natural plant communities as models; 2 Avoid non-native species and those species identified by CAL-1PC as invasive in the San Francisco-Bay Area; 3. Select water-conserving plant and turf species that are suitable for the climate and soil conditions in San Leandro; 4. Select plants based on disease and pest resistance; 5. Use the Sunset Western Climate Zane System to select plants, which takes into account temperature humidity, elevation, terrain, latitude and varying degrees of continental and marine influence on local climate; 6. Recognize the horticultural attributes of plants (i.e., mature plant size invasive surface roots) to minimize damage to property or infrastructure (e.q. buildings sidewalks power lines) and to aNow them to grow to their mature size within the space allotted them to avoid shearing and topping and consider the solar orientation for plant placement to maximize summer shade and winter solar gain 7 Avoid turf on slopes greater than ten (10) percent where the toe of the slope is adjacent to an impermeable hardscape and avoid turf in street medians traffic islands or bulbouts of any size unless irrigated with subsurface or low volume irrigation; 8. Grade so that all irrigation and normal rainfall remains within property lines and does not drain on to non-permeable hardscapes; 9 Avoid disruption of natural drainage patterns and undisturbed soil; 10.Avoid soil compaction in landscape areas; 11.Ayoid overhead irrigation within twenty-four (24) inches of any non- permeable surface. 12. Group plants in hydozones according to water need and place trees on separate valves from shrubs groundcovers, and turf; 13. Use automatic irrigation controllers that can seasonally adjust water schedules and allow for multiple start times; 14. Set irrigation controls to water before 10am or after. 8pm; 15. Space sprinkler heads to achieve a uniform precipitation rate with no overspray onto hardscapes; 16. Use dedicated landscape water meters on landscape areas smaller AR.19 Page 14 of 19~