Water supply to Pontevedra and Lérez water treatment plant
"The works consist of the expansion of the Lérez treatment plant, increasing the capacity from 28,800 m3/day to a treatment capacity of 86,400 m3/day. The treatment process consists of a physical-chemical treatment through flocculation and reagent dosage, dissolved air flotation, sand filtration and chlorine disinfection. Auxiliary works: 12 Km of new pipelines, rehabilitation of existing pipelines using trenchless methods, construction of 4 new tanks with a total capacity of 25,000 m3, 3 new pumping stations and expansion of a fourth one, and electric power connections. Served population: 120,000 people. "