Technological indicators are important tools for the assessment of quantity and quality of the environmental sanitation services provided for the population. From this perspective, this paper presents a quali-quantitative methodology intending to compare technological performance of water supply and sanitation services. The method consists of performance indicators that, combined trough a multicriterion model (TOPSIS), enable the hierarchization of the technological quality of services. The model is applied at the municipalities of Itabirito, Ouro Preto, Nova Lima and Vespasiano (Minas Gerais, Brazil). Exploring particularities of each service performance, the results suggest significant technological differences between the services, based on aspects of coverage, water loss control, water quality, treatment plants, tariffs, etc.
water supply; sanitation; multicriterion analysis; technological performance
