This subsystem is made up of the canal network located in the northern area of the airport that drains its waters in an east-west direction; it is made up of a main channel (channel 1d) and two secondary channels; hereinafter referred to as channel 1.a and channel 1b. currently these channels are on land; vegetated; their section is trapezoidal and they have an average longitudinal slope of 0.00054 (m/m)