（二 〇 一〇 年 六 月 专业外文翻译学校代码： 10128学 号： 202520605063题 目 ： 专业外文翻译学 生 姓 名 ： 侯 志 军学 院 ： 土 木 工 程 学 院系 别 ： 市 政 工 程 系专 业 ： 给 水 排 水 工 程班 级 ： 给 水 排 水 0 6 - 2指 导 老 师 ： 云霞 副 教 授Urban Water Supply and DistributionKey Issues • Data • • Expanding Water Supply to Unserviced Neighborhood • • Access to Safe Water Sources • • Water System Efficiency and Cost Recovery • • Institutional Efficiency and Benchmarks • • Land Insecurity • • Tariff Structures • • Customer Orientation & Public Participation • • Decentralization and Devolution • • Appropriate Technology • Urban Water Supply Bibliography & Key Contacts • General Urban Environmental Sources • • Specific Water Supply Sources • Introduction Affordable, abundant and clean water is essential for human well-being.There are clear linkages between access to potable water and health, nutrition levels and subsequently education achievement, labor productivity and economic growth. However, for the urban poor reliable access to clean and affordable water often is unavailable. As many as 500 million urban residents have inappropriate access to water services or experience water scarcity. The World Bank reports that "some 25% of the urban population of Latin America and at least 50% of the urban population of Africa are not connected to official utility networks and rely on alternative sources for their water supply.( World Bank Water Sanitation Website ) For middle-class residents regular water supply is one of the most valued urban services. Often, even these families face de facto rationing. In many cities demand for water, at current tariff levels, greatly...
