Sanitation and Underwater Discharge in Nigrán (Pontevedra)
Emergency work, in which an existing 250-m underwater discharge system with deficiencies in its working was reconstructed, for it presented deficiencies in its working, improving the connection of the wastewater treatment plant with the underground discharge system through a new polyethylene piping. The work included new pumping wells and flap valves in A Ramallosa. Contracting Entity: Xunta de Galicia, Empresa Pública de Obras e Servizos Hidráulicos.