使用计算机技术和当地成本数据分析了为巴西社区提供不同水平的水和卫生服务的系统的成本。在所有级别的服务中，供水和卫生设施的成本大约是单供水成本的两倍。当成本是一个重要考虑因素时，使用庭院水龙头和现场废物处理的系统被认为是最合适的。包括4个参考文献、表格。

Costs of systems that would provide different levels of water and sanitation services for a Brazilian community were analyzed using computer techniques and local cost data. At all levels of service, the cost of supplying both water and sanitation is approximately twice that of providing water alone. A system using yard taps and on-site waste disposal was found to be most appropriate when cost is an important consideration. Includes 4 references, tables.