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Local Water Supply Plan—Centerville <br /> What is your leak detection monitoring schedule? (e.g. monitor 1/3rd of the city lines per year) <br /> As needed. <br /> Water Audits-are intended to identify, quantify and verify water and revenue losses.The volume of <br /> unaccounted-for water should be evaluated each billing cycle.The American Water Works Association <br /> (AWWA) recommends that ten percent or less of pumped water is unaccounted-for water. Water audit <br /> procedures are available from the AWWA and MN Rural Water Association www.mrwa.com . Drinking <br /> Water Revolving Loan Funds are available for purchase of new meters when new plants are built. <br /> What is the date of your most recent water audit? 2015 <br /> Frequency of water audits: Q yearly ❑ other(specify frequency) <br /> Leak detection and survey: ❑ every year ❑ every other year 0 periodic as needed <br /> Year last leak detection survey completed: <br /> If Table 2 shows annual water losses over 10%or an increasing trend over time, describe what actions <br /> will be taken to reach the<10% loss objective and within what timeframe <br /> The average unaccounted for water between 2010 and 2015 was approximately 8 percent.The City will <br /> conduct regular water audits to compare water pumpage and water sales.The City will also increase <br /> record keeping of Utility water usage for system maintenance, flushing, and other uses. <br /> Metering-AWWA recommends that every water supplier install meters to account for all water taken <br /> into its system, along with all water distributed from its system at each customer's point of service. An <br /> effective metering program relies upon periodic performance testing, repair, maintenance or <br /> replacement of all meters. AWWA also recommends that water suppliers conduct regular water audits <br /> to ensure accountability. Some cities install separate meters for interior and exterior water use, but <br /> some research suggests that this may not result in water conservation. <br /> Complete Table 23 by adding the requested information regarding the number, types, testing and <br /> maintenance of customer meters. <br /> Table 23.Information about customer meters <br /> l <br /> Residential 1,202 1,202 1,202 As needed Unk/25 yrs <br /> Irrigation meters 9 9 9 As needed Unk/25 yrs <br /> Institutional 1 1 1 As needed Unk/25 yrs <br /> Commercial 44 44 44 As needed Unk/25 yrs <br /> Industrial - - - - - <br /> Public Facilities 2 2 2 As needed Unk/25 yrs <br /> TOTALS 1,258 1,258 1,258 - - <br /> 24 <br /> 69 <br />