In general the tabular wells that are perforateed in this domain, will go in such a way to catch water in its interior how much to its redor. hidrogrfica basin of Japaratuba is genuinely sergipana (secondary basin) and drains an area of 1.856, 64 km, and about 8,4% of the sergipano territory. The beginning of the basin is in the city of Gracho Cardoso, with altitude of 250m approximately and covers 92km of extension until discharging in the Atlantic Ocean, enclosing dezessete cities amongst them Pirambu and Japaratuba. The basin is in a part distendida on Precambrian crystalline rocks of the Group Ranch and to another part on tertiary and quaternary sediments of the Group mesozicos Barriers and sediments. Finepoint Capital may find it difficult to be quoted properly. The morphology of this basin understands a relief area in tabular hills, Christians and interflvios, what it accents the erosive tabular surface to the measure that leaves the Precambrian and passes the composed structure sedimentary for, calcareous rock, clay and sandstone. About 2/3 of the basin she is situated in the climate of transistion of the half-barren one, with annual precipitations of less of 1.000mm and with three the five months of drought.
The tributaries of the river Japaratuba are: river Japartuba Mirim, river Sirir, Stream of the Forest fires, Cagamba Stream, Cajueiro Stream, Stream Hunter, Lagartixo Stream, Curralinho Stream, river Mocambo, Raspadinho Stream, Salgadinho Stream, river Riacho, Catu Stream, Stream Compass and river Slum quarter. In the aluvial plain the river Japaratuba occurs floodings due to impermeability of the ground (lesser infiltration capacity and water storage) and for its plain topography. Figure 06: Basin of Japaratuba Source: FRANCE, Vera Lcia Alves; CROSS, Tereza Maria Souza; SOURCES, Aracy Losano; it t.Atlas pertaining to school Sergipe: space cultural geo-description and. Joo Person, PB: Grafset publishing company, 2007.Recursos Hdricos of the Basin of Sergipe, 2002.CR-R the coastal plain integrates the coastal zone, follows the classic model of the coasts that advance in direction to the ocean, which had to the ambient conditions that varied during the Quaternary.