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42 <br />AMI Feasibility Report I Client Name: City of Santa Ana <br />and tested) will be available in 1 to 2 years. These will add value to the system because a <br />substantial number of meters would have been installed and the available data amassed; therefore, <br />the timing of the complete availability of these analytic solutions should support the MDMS project <br />plan. <br />The leakage detection through leak noise logging is operational but requires refinement with <br />respect to interaction with all of the AMI systems. The protocols have reportedly been developed <br />and tested, but no actual implementation has occurred with the different leak detection solutions <br />across all of the AMI networks. Today, the choice of leak detection system available is largely <br />dictated by the choice of AMI vendor. <br />AMI industry best practices have shown that the initial years of the project should focus on IT <br />systems integration, MDMS implementation, meter and MTU deployment, and system operations. <br />The introduction of advanced features like leak detection, analytics, and services should lag to allow <br />for a sufficient quantity of meters to be installed and the system to stabilize. Attempting to <br />accomplish too much too early in the Droiect can result in Door results. <br />9.2.3 Auditing System Demand <br />System demand is often difficult to analyze in detail due to the nature of quarterly and monthly <br />billing, non -revenue water, and overall production demands. Demand can be much more accurately <br />assessed with the interval data from an AMI system. <br />Reducing non -revenue water is a key goal for most water utilities. In order to maximize the <br />effectiveness of an AMI system to reduce non -revenue water, it should be paired with a distribution <br />leak detection system. The water meter data is compared to the system production data and further <br />evaluated for potential system leaks. <br />AMI systems help provide the necessary time -sensitive data for increased validation of non - <br />revenue water measurements. The City should consider including District Metered Areas' (DMA) <br />meters as part of the AMI network to provide the ability to balance DMA flows with customer <br />consumption. This will aid in auditing of water losses, since in its current form, only an overall <br />system balance on an aggregated period is possible. With AMI and adequate DMA implementation, <br />increased understanding of the system demands will be available. Also, leakage flows in various <br />areas will flag operations to investigate the potential of leakage in any given DMA. In addition, this <br />'A District Metered Area is a discrete zone of generally between 1,000 and 3,000 customer connections that is <br />separately metered to provide a daily flow profile. This flow profile is then used to determine the amount of <br />leakage in this specific zone. Leakage detection resources can then be targeted to the DMA with the highest <br />leakage each night. <br />25G-160 <br />