Five water pumps are installed, each with a rated flow rate of 420 m3/h, a total drainage capacity of 2100 m3/h, and internal and external water tanks with a total volume of 5600 m3;. Lay 3 drainage pipes with a diameter of 325 mm. In addition, an auxiliary drainage system will be set up at the level of -810m, with 3 water pumps installed, each with a rated flow rate of 280 m3/h, a total drainage capacity of 840 m3/h and a total volume of 1200 m3 of water storage.