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<br />3. Appropriate selection of plant materials and grasses using Xeriscape principles <br /> <br />Status: City Code 18.76.010(F) states "Xeriscape design principles and use ofxeriscape <br />plant materials shall be promoted by the city; all city projects will employ xeriscape <br />principles." The City has been using appropriate plant materials, following Xeriscape <br />principles in all City projects built since 1991. Xeriscape standards are outlined in City <br />Code 18.76.030(c)(19), and a plant list is published by Parks and Planning divisions. <br /> <br />Implementation: On-going. Periodically evaluate, update and strengthen the Code as <br />necessary. Pursue pilot programs to evaluate alternative plant materials, irrigation <br />systems, and site applications. <br /> <br />4. Irrieate appropriate time of day to avoid evaporation and wind <br /> <br />Status: The best time to water is in the hours just before sunrise because there is <br />generally less wind and watering during the heat of the day loses water to evaporation. <br />Irrigation timers are set to water at night whenever possible (sometimes scheduling of <br />fields and parks prevents this). Some parks (for example, Sunset/Price Park) have quick <br />coupler systems which are operated manually during the day. In the case of a storm <br />occurrence, systems not on central control must be shutoff manually. <br /> <br />Implementation: On-going. As system is convened to central control, shutoff during <br />storm event~ will improve. Replacement of manual irrigation systems dependent on <br />capital funding. <br /> <br />5. Appropriate selection and maintenance of sprinkler heads <br /> <br />Status: Irrigation heads are titted with the correct nozzles and are set correctly to avoid <br />water on unwanted surfaces. Irrigation heads on long, sloped laterals are fitted with <br />check valves to avoid water waste. Watering times are set for appropriate turf and shrub <br />water requirements and shut down during heavy rains. All irrigation systems are checked <br />on a weekl y basis by a certified landscape irrigation auditor andlor Parks maintenance <br />technician. <br /> <br />Mowers contribute to approximately 100-200 broken heads or nozzles each week. All <br />irrigation heads are checked following mowing. The acquisition of new mowers in 1995 <br />should reduce the number of broken heads and nozzles. Employees are required to police <br />areas for tmsh and heads stuck in the raised position before mowing. <br /> <br />Implementation: On-going. <br /> <br />6. Retrofit i rri!!atiun systems to autumatic. central control <br /> <br />Status: All new irrigation systems have the capability to run off of one central computer <br />system. The system has the capability to automatically shut down any zone with broken <br /> <br />II <br />