圣保罗大都会地区有1700万居民 定居在8000平方公里的地区。这里的地形是丘陵地带，因地形而异 海拔730米至850米。圣保罗水与下水道公司（SABESP） 通过一个20人的分配网络提供水和卫生服务 5000公里的干线，有300万个客户连接，通过 批量销售到六个邻近的城市。水系统是完全计量的 消费者有独立的建筑屋顶储罐。 去年的平均产量是每秒64米立方 （1417 MGD），水损失为每秒20.6米立方（456 MGD）。使用OP24，每天每个服务连接的实际损失约为74% 每天每次连接的加仑数和OP23每次服务的表观损耗 每天的连接量约为77.9加仑。萨贝斯 在过去五年里，ILI从超过8下降到了约6。 该公司在2008年经历了激烈的重组过程 在过去五年里，凭借积极的财务和运营目标， 结果达到了预期。在上一个财政年度（2003年），SABESP 实现了1.79亿美元的净利润，这使得投资额达到1.28亿美元 今年是改进和维护系统的一年。 本文讨论 SABESP战略的关键， 它在短时间内显著恢复了失水。 储蓄 获得短期资助的项目分为以下几个阶段，长期 结构方案: 降低供水管网中的平均压力——近26% 压力超过60米水头（88磅/平方英寸）； 减少对客户有关可见泄漏投诉的响应时间； 在50%的配电网络中实施主动式泄漏检测计划； 每年在5个部门实施重新分区； 每年更新1%的网络和扩展； 每年更新和升级系统中12.5%的住宅电表； 更换大型电表； 加强主动和非主动连接的反欺诈行动； 加强散装计量系统；和 重置倾斜的仪表。包括3个参考文献、图表。

The metropolitan region of São Paulo has seventeen million inhabitants settled in an eight thousand square km area. The landscape is hilly, varying from 730 m to 850 m, above sea level. The São Paulo Water & Sewer CO. (SABESP) supplies water and sanitation services through a distribution network of twenty five thousand km of mains, with three million customer connections and through bulk sales to six neighboring municipalities. The water system is totally metered and consumers have individual building storage roof tanks. Last year's average production was sixty-four meters cubed per second (1,417 MGD) and, the water losses were 20.6 meter cubed per second (456 MGD). Using OP24 real losses per service connection per day are around 74 gallons per connection per day and OP23 apparent losses per service connection per day are around 77.9 gallons per connection per day. SABESP's ILI has dropped from in excess of 8 to around 6 in the last five years. The company has undergone an intense reorganization process during the last five years, with aggressive financial and operational targets and, so far, the results have met expectations. In the last fiscal year (2003), SABESP realized a $179 million net profit, which allowed a U$ 128 million investment for the present year for improving and maintaining the systems. This paper discusses the key to the SABESP strategy, which produced a significant recovery of lost water in a short time. The savings obtained in the short term funded the following stages of the program, longer-term structural programs: reduce the average pressure in the water distribution network- nearly 26% has pressures above 60 m head (88 PSI); reduce response time to customer complaints regarding visible leakage; a proactive leak detection program in 50% of the distribution network; implement rezoning in 5 sectors per year; renew 1% of the network and extensions per year; renew and upgrade 12.5% of the residential meters in the system per year; replace large consumer meters; reinforce anti-fraud actions in active and inactive connections; enhance the bulk metering system; and, reset inclined meters. Includes 3 references, figures.