Cobrança pelo o uso da água bruta: uma análise da arrecadação na sub-bacia do rio alto piranha no sertão da Paraíba.

Abstract

The main objective of this research is to estimate and to analyze the tax revenue in the subbasin of the Alto Piranhas in the state of Paraíba, adopting a model of charging that considers the peculiarities of the region. After surveying the main charging models in the literature and to be aware that the sub-basin is managed by federal government, it was observed that the model adopted by the Rio São Francisco is the one closest to the reality of the region studied. Thus were idealized and simulated Scenarios I and II, considering the current and future demands. That way, these scenarios have criteria values that may or may not vary the assigned values and depend on the component (collection, use, release and transposition), the framing class (CONAMA 375/05) and other elements that also depend on the model to be chosen. Thus in Scenario I adopted the Class II and Scenario II adopted the Class III. Based on the results it was observed that the total annual revenue in the Scenario II is greater than Scenario I, it was mainly the change of some parameters that are directly linked to the framing class. Therefore, this project warns the government about the urgency of implementing the charging instrument and how much is left to collect. These resources could provide improvements in quality of life at sub-basin studied. Furthermore, only with the knowledge of the actions and planning that are being developed by local federal committee can examine whether simulated annual revenue is sufficient to support the management system sub-basin studied.