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Comparison of Use of Measures to Sewer Inflow and Infiltration <br />witn nuaits <br />Comparison of Use of Measures to Reduce Water Loss <br />previous year.' Of the 358 water systems covered for 2004, 61 percent had solvent <br />operations and "39 percent operated in the red. Of the 31S sewer systems audited for <br />2003, 63 percent at least broke even while 37 percent lost money. A closer examiuation <br />of these systems shows that those losing money reported 10 peicent more "lost" water <br />from their water systems and 24 percent more I&1 problems in their sewer systems. <br />One of those water systems in the red was losing 60 peccent of its treated water every <br />inonUi. Systems losing money also were less likely to have regular inspections and <br />maintenance programs in place. <br />The water and sewer rate structures most widely used in the state do not encourage <br />customers to wnserve. <br />Conservation ranks alongside leak coxrection as a way that urititles can stretch the life- <br />time of existing water and sewer treatment plants and thus avoid costly construction <br />projects focused on developing new supplies ot treatment capacity. Cunent rate <br />schedules, however, do little to encoueage customers to avoid unnecessary use. Only <br />19 percent of water systems and 11 percent of sewer systems employ conservatiov rate <br />structures. Conservatiov rates include increasing block rates (higher unit fees for higher <br />' N.C Department of 5[ate Treazurey Memorandum No. 1032, Apnl 75, 2005. <br />~~~ 17 <br />summary of all systems operated by N.C. local governments. The most recent reports <br />indicated that the immber of units operating in a fiscal danger zone increased over the <br />