Estabelecimento de critérios de outorga de direito de uso para águas subterrâneas.

Abstract

The increasing explotation of groundwater resources, mainly due to its low cost and good quality has required the need for regulation of its availability both in quantity and in quality. One of the instruments established by the Federal Law no. 9.433/97 to accomplish this control is the water right by checking pre-set criteria. However, there is no consolidated methodologies for establishing criteria for grants to groundwater. Indeed, the central objective of this research is to establish criteria for water rights apply to groundwater. Was used as a case study portion of the Sedimentary Basin Coastal Paraiba-Pernambuco inserted in the Region of the Lower Course of the river basin Paraiba, Paraiba state, Brazil. Through consideration of a conceptual model of hydrological processes in the region was possible to establish criteria for the award in accordance with the reality of the basin. The results were proposed levels of coverage criteria for grants, thus defined: global, regional and local. The establishment of regional level of coverage required to be set up seven "areas of management," in which different criteria may be established from one area to another. The criteria of water right have established express the problems of managing water resources in the watershed case study.