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City of San Leandro A-100 in which they will be planted, as documented by a published plant reference. If plants are given a range of water needs from “occasional to moderate” for example, the landscape designer must determine if the plant will require either occasional or moderate watering based on site, soil, and climate conditions and categorize the plant appropriately. Sources used to determine climate adaptation and watering requirements may include: a. Bornstein, Carol, David Fross and Bart O’Brien, California Native Plants for the Garden. Qualifying irrigation designation: “occasional,” “infrequent,” or “drought tolerant.” b. East Bay Municipal Utility District’s publication Plants and Landscapes for Summer Dry Climates. Qualifying irrigation designation: “occasional”, “infrequent,” or “no summer water.” c. Sunset Publishing Corporation Sunset Western Garden Book. Qualifying irrigation designation: “little or no water.” d. University of California Cooperative Extension’s Guide to Estimating Irrigation Water Needs of Landscape Plantings in CA. Qualifying irrigation designation: “Low” or “Very Low.” 4. Total irrigated areas specified as turf shall be limited to a maximum of 25 percent; sports or multiple uses fields or recreational areas are exempted. Turf is not allowed on slopes greater than 25 percent where the toe of the slope is adjacent to an impermeable hardscape and where 25 percent means one foot of vertical elevation change for every four feet of horizontal length. 5. Those species identified by California Invasive Plan Council (CAL-IPC) as invasive in the San Francisco Bay Area shall not be specified. 6. The architectural guidelines of a common interest development, which include community apartment projects, condominiums, Planned Developments, and stock cooperatives, shall not prohibit or include conditions that have the effect of prohibiting the use of low -water use plants as a group. 7. Recirculating water shall be used for water features and, where available, recycled water shall be used as a source for decorative water features. 8. Recycled water shall be used for all irrigation (if available). 9. The irrigation system shall be designed to ensure that the dynamic pressure at each emission device is within the manufacturer’s recommended pressure range for optimal performance. 10. Sensors (rain, freeze, wind, etc.), either integral or auxiliary, that suspend or alter irrigation operation during unfavorable weather conditions shall be required on all irrigation systems, as appropriate for local climatic conditions. Irrigation should be avoided during windy or freezing weather or during rain. 149