Later it runs through the Comarca of Alt Penedès, where it feeds a reservoir in the nature reserve of Parc del Foix since 1928, which is highly important for the drinking water supply of the densely populated coastal plain between Barcelona and Tarragona.
After its journey, the watercourse passes through the Alt Penedès region and feeds a reservoir in the Parc del Foix nature reserve, which has been providing drinking water to the densely populated coastal area between Barcelona and Tarragona since 1928.