Illustrative image about basic sanitation in Rondônia Magnific/IA The Government of Rondônia published, this Tuesday (7), the international bidding notice that must transfer responsibility for water supply and sewage services in 40 municipalities in the state to a private company, through a concession contract with an estimated value of R$8.47 billion. The public auction session will take place on September 29, 2026, at 2 pm (Brasília time), at B3's headquarters, in São Paulo. The notice and other bidding documents are available on the website of the State Superintendence of Purchasing and Tenders (Supel). READ ALSO: Civil Police investigating death of young man who went to hospital with a headache and died hours later in RO Suspects of displaying weapons, money and drugs on social media are targets of operation in RO Influencer is indicted for trafficking in operation investigating movement of 1.5 tons of drugs in RO The winning company will be chosen based on two criteria: offering the biggest discount on water and sewage tariffs to consumers and paying the highest fixed grant amount to the State. ??The grant works as an amount paid for the right to assume the operation of sanitation services. Whoever combines the biggest discount for the population with the biggest offer to the government wins the auction. According to the document, the concession provides for the winning company to take over water and sewage services in around 40 municipalities in Rondônia, including Porto Velho, which are part of the state's Water and Sewage Microregion (MRAE). Check out the topics that are trending on g1: