The Factor Ambiente company, associated with the Rivers Project since March 2010, the Campaign held at the Spring on River "Arado", in the Serra do Gerês, on 04/06/2011. The results showed the continued quality of this river. With the ongoing concern in environmental issues, supported by the motto "Our Commitment is to nature," the Factor Ambiente company continue to play an active role in the preservation of all the rivers, and especially in this part of the river, the whole company is proud of this adoption.