The present article intend to present a criterion for implantation of technologies destined to desalinated the drinking waters reser- voirs that provide the cities of the state of Ceará affected by high levels of salt. Considering the hypothesis, demonstrated in this article, that there is a strong correlation between the socioeconomics conditions and the level of salt of the water that supplies the population of the cities, a socioeconomic criterion was chosen. Applying the technique of factorial analysis for the method of the main components to analyze socioeconomic and environmental variables, it could be arrange the cities in hierarchy order according to its needs of receive desalination equipment.


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