Underground water and the Environment the underground waters and the superficial ones is partesintegrantes of the hidrolgico cycle and the environment. Frequently, reasde discharge of the underground water bes situated in heaths, lakes or rivers, feeding its aquatic levels of base and ecosystems. In other cases, soesses bodies d' superficial water many times varies sazonalmente: during rainy aestao, the water flows of the bodies d' water superficial for the guasubterrnea, while in the estiagem the direction of the flow if inverts. Ambient problems with underground waters are common, varying how much to the type and degree of gravity. They can be grouped in duasprincipais categories: caused for contamination and those caused porsuperexplorao. The pollution of underground waters is generally difficult to dedetectar, of dispendioso monitoramento and very drawn out. In the majority dasvezes, the contamination alone is discovered at the moment where substances nocivasaparecem in the drinking waters reservoirs, when the pollution already if espalhousobre a great area. The despoluio of the underground water is particularmentedemorada and expensive, through sophisticated technologies.

The 20 United States possuemum deep esteem of a100 billions of dollar for action in this sector. The quality of the water they subterrneavem very declining slowly, but with certainty, in all the places. Maiorparte of the contaminantes is proceeding from the urban, industrial uses and daagricultura. Many solutions techniques had been developed to recoup or nomnimo to contain the types of pollution. Today one becomes evident that the sources depoluio of the underground water are not spread and related the very bigger umavariedade of activities. The pollution in areas industrializadaspode not to be attributed to the diverse origins such as fertilizing, septic pesticides, fossas, urban drainings and pollution of the air and waters of surface. The only efficient method of control of this type of pollution is the handling interadodos uses of the ground and the water. Superexplotao the underground water always was seen as a fonteinesgotvel of supplying.