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I ® V WATER MANAGEMENT PLAN - WATER CONSERVATION SECTION <br />The third BMP category includes conservation programs involving direct interventions <br />with customers. The applicable BMPs in this case are la, 5, 6, 9, and 14. Appendix C <br />contains a detailed potential implementation plan for these BMPs including performance <br />measures, activity levels, costs, and estimated water savings over the period 2003 to <br />2020. <br />Table 1.4 summarizes the total costs associated with the BMPs. The immediate and <br />aggressive implementation of toilet replacement associated with BMP 14 is the main cost <br />component. <br />Table 1.4 <br />BMP Potential Costs <br />lProgram <br />2003/04 <br />2004/05 <br />2005/06 <br />2006/07 <br />2007/081 <br />BMP 1 <br />$66,600 <br />$68,509 <br />$44,400 <br />$44,204 <br />$50,700 <br />BMP 5 <br />$127,055 <br />$78,700 <br />$78,700 <br />$54,700 <br />$54,7001 <br />BMP6 <br />$145,500 <br />$133,000 <br />$108,000 <br />$108,000 <br />$0 <br />BMP 9 <br />$82,287 <br />$68,700 <br />$48,000 <br />$19,500 <br />$30,000 <br />BMP 14 <br />$950,000 <br />$1,125,000 <br />$650,000 <br />$0 <br />$OI <br />Total <br />$1,371,442 <br />$1,473,909 <br />$929,100 <br />$226,404 <br />$135,4001 <br />1.2.4 BMP Water Savings and Cost Effectiveness <br />All of the BMPs create water savings of a limited life span. This is an important point, as <br />it differentiates this water resource from other more permanent sources such as recycled <br />water. The BMPs also vary in their cost effectiveness —an important consideration. <br />Figure 1.3 shows water savings over time for both passive and active conservation <br />associated with the BMP implementation plan. <br />The greatest amount of water savings will occur via the passive conservation associated <br />with the improved efficiencies associated with toilets and clothes washers. At no direct <br />cost for the City, the water savings will grow over time reaching 965 AFY by 2020 and <br />1,584 AFY ultimately (about 2040 based on life cycle assumptions). <br />The most cost effective BMP is BMP 5 with an estimated cost of $154 per AF. This <br />assumes the City will continue to send water budgets to its large landscape customers <br />over time and, on average, will continue to offer landscape follow -up surveys to sites <br />every three years to maintain good irrigation practices. <br />13 <br />