Avaliação de parâmetros hidrogeológicos dos aquíferos do município de Fortaleza, Estado do Ceará

Abstract

This study was developed IR the municipal district of Fortaleza, in the-state of Ceará and it has as its objective an evaluation of the hydrogeological parameters of the static level, discharges and depth in the wells located in the aquifers that belong to the study area. The work methodology consisted of a bibliografical research, an evaluation of the registered wells, an elaboration of the thematic basis, a field research and data treatment with computerized programs such as Excel, Surfer and ArcGis. During the research, an archive of data was worked with 7.281 wells, being 2.451 tubular deep wells, 2.858 tubular shallow wells, 980 manual wells, 9 amazonas wells and 983 nonclassified wells. An analysis of several well reports was also done, as well as, was monitored factually, in a period of a year, the flow and the water level of 9 tubular wells in the same hydrogeological context. In the area were defined the fissure' crystaline (55,63 km2) and the sedimentar aquifer system that comprehends the Dunas/Paleodunas (98,83 km2), Barreiras (120,25 km2) and Aluvionar (31,83 km2). According to the telemetric monitoring of the 9 selected wells, the average of the water level is 11,50 meters and the average of the flow is 2,30 m3/hour. The smallest water level is 3,87 meters (Well BNB — Passaré) and the biggest water level is 22,08 meters (Well DETRAN). The biggest discharges is 4,75 m3/hour (Well DETRAN) and the smallest discharges Is 0,32 m3/hour (Well HGF).