“…This contamination can spread not only by surface water, but also can reach the water table, a possible source of water for the local population. Oliveira and Pasqual (2004), Lopes et al (2007) and Nakamura et al (2014), verified the contamination of the water table by heavy metals in their stidies. Arsenic, Cadmium, Lead, Copper, Mercury and Zinc are systematically referred to as sources of urban waste deposited in landfills or dumps, domestic sewage, mining, industrial dumping and agricultural activities (Campos et al, 2009;Coelho, 2012;Cotta et al, 2006;Egreja Filho et al, 1999;Jesus et al, 2004;Lima and Santos, 2012;Macêdo, 2007;Marins et al, 2004;Nakamura et al, 2014;Nriagu e Pacyna, 1988;Ribeiro et al, 2012;Santana and Barroncas, 2007;Silva et al, 2016;WHO, 2004;2007;2010a;2010b;2010c;Yu et al, 2014).…”