Abstract
The city of Guarulhos inserted in the Metropolitan Region of São Paulo has its urban development often in a disorderly manner, without any planning with the expense of increasing levels of environmental degradation. The units of study chosen in this project are the Watershed of "Ribeirão Guaraçau" and "Ribeirão das Lavras", both on the north face of the city, within the "Baquirivu Guaçu" …