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(AWWA). The City will continue to refine these programs with a goal of reducing and <br />maintaining unaccounted usage below 12%. <br />5.2 Universal Metering <br />The City meters all water connections within the service area, and estimates unmetered <br />uses such as fire-fighting, line flushing and water leaks. Construction water from hydrants is <br />allowed only through portable metering devices controlled by the City. Compound water meters <br />are used for customers that are likely to experience periodic low flows, such as apartment <br />complexes and restaurants. Turbo meters are used for customers that are likely to experience <br />only high flows such as car washes, laundromats and irrigation. <br />In 1987, the City implemented a meter replacement program in which all water meters <br />within the service area are replaced on a ten-year cycle. In 1996 the City added a large meter <br />testing program in which meters four inches and larger are tested annually and repaired or <br />replaced as needed. Testing is accomplished through flow comparison with a calibrated digital <br />water meter, with each meter tested at high, medium, and low flows. In addition to scheduled <br />replacement and testing, meters that are suspected of malfunction are investigated immediately <br />and repaired or replaced as needed. <br />In 2013 the City completed installation of an Advanced Metering Infrastructure (AMI) <br />system for both water and electric meters. The AMI system provides hourly water usage data <br />which City staff uses in water conservation audits and to identify customer-side leaks. The City <br />utilizes AMI data to provide weekly Continuous Flow Reports to customers that appear to have <br />customer-side water leaks. The City will continue to develop methods for utilizing AMI data <br />and to expand use of this data in conservation programs. <br />5.3 Water Conservation Ordinances <br />In 1994, the City adopted its first year-round water conservation ordinance along with the <br />drought management rules. <br />In 2006 the City adopted a water conservation plumbing code which sets forth <br />requirements for commercial car washes, cooling systems, decorative water features, commercial <br />dining facilities, on-premise laundry facilities and landscape irrigation systems. Irrigation <br />system codes were updated in 2009 to reflect changes to state regulations. <br />6 <br /> <br />