There are 3 artesian holes at Benfica Campus which aggregate water quality control equipment, enabling the irrigation of the 9 existent football fields, gardens and remaining green spaces (to complement the rainwater coming from the lagoon).
These holes enable thus the irrigation of an area about 56.000 m2 of pitches and 16.000m2 of green spaces.
It should be also mentioned that a large proportion of this water returns to the soil by natural drainage and the rest is directed to the lagoon.