Afluência de October Aggravation of water crisis due to the lower infl ow compared to previous year 31% of historical average inflow 79% of historical minimum inflow The system as a whole stores approximately 1.5 trillion liters of water, of which 982 billion liters above the level of the gravity extraction fl oodgates (also known as useful volume) and the remainder below the fl oodgates, volume referred to as “technical reserve”.