Abstract
Presently all domestic waste from the cities of Vale do Paraiba, including Cachoeira Paulista, Lorena, Guaratinguetá and Cruzeiro is deposited on sanitary landfills in Cachoeira Paulista without any previous separation or treatment. Recalcitrant products (leachate) undergo no physical or chemical treatment and percolate directly through the landfill, consequently, polluting the surroundin…