Rio de Janeiro state water and sanitation utility Companhia Estadual de Águas e Esgotos (Cedae) was founded in 1975 as a result of the merger between Empresa de Águas do Estado da Guanabara (Cedag), Empresa de Saneamento da Guanabara (Esag) and Companhia de Saneamento do Estado do Rio de Janeiro (Sanerj). It holds concession contracts for the operation and maintenance of the state's water distribution systems, including water collection, treatment, transport and distribution for 64 municipalities in the state, as well as the collection, transport, treatment and disposal of wastewater generated by 31 municipalities. Cedae also develops projects including the Guandu II Complex, a new plant to treat 12,000l/s, a lift station for treated water, and a 57 million lt reservoir. The project will benefit 3 million people in Rio de Janeiro's metropolitan region, especially the area known as Baixada Fluminense. Cedae is headquartered in the city of Rio de Janeiro. Rio de Janeiro state's government is the company's controlling shareholder.