The septic tank has two structures with a high degree of complexity: radial walls with a 16 m diameter and a height of up to 12.9 m, made in 5 layers. It is worth mentioning two of the solutions provided in this facility:
- The execution of 8 embedded columns for anchoring the circular system of pre-stressed cables. To do so, the design and construction proposed involved an integrated structure with elements of vertical modular formwork, H-120 beam system, and timber structures.