Sabesp Fined US$5.9 Million Over Sewage Station Failures in São Paulo
Brazil · Utilities
Key Facts
- —What happened Arsesp, São Paulo state’s utilities regulator, imposed two fines on Sabesp totalling R$29.9 million (about US$5.9 million).
- —The bigger fine R$23 million (about US$4.5 million) for failures found at nine sewage pumping stations in São Paulo city.
- —The smaller fine R$6.9 million (about US$1.4 million) for missing sanitation targets in Ferraz de Vasconcelos between 2018 and 2020.
- —The catch Both decisions are first-instance rulings, and Sabesp can still appeal to the regulator’s board of directors.
- —What Sabesp says The stations operate normally, and the Ferraz de Vasconcelos failures predate its July 2024 privatisation.
- —Why it matters Brazil’s largest sanitation company is under closer political scrutiny before the 4 October 2026 state election.
São Paulo’s utilities regulator penalised the privatised water company last week over failing sewage pumps and missed sanitation goals. The fines came less than three weeks before a governor’s race in which the sale itself is an issue.
Sabesp was fined R$29.9 million (about US$5.9 million) last week by São Paulo’s regulator over failing sewage pumps and missed sanitation targets. Sabesp is the privatised water and sewage company serving most of São Paulo state.
The penalties come from Arsesp, the São Paulo state agency that regulates public utilities and sets Sabesp’s tariffs. They were published in the state’s official gazette, the Diário Oficial, on Wednesday 16 September 2026.
Neither fine is final. Sabesp can appeal both to Arsesp’s board of directors before any money changes hands.
Nine pumping stations, nine infractions
The larger penalty is R$23 million (about US$4.5 million). It follows inspections carried out by Arsesp in January 2025 at nine sewage pumping stations in São Paulo city.
Pumping stations lift raw sewage from the collection network towards treatment plants. When they fail, sewage can overflow into streets and streams instead.
Arsesp upheld nine infractions after reviewing Sabesp’s defence, according to Estadão. It added a 30% aggravating factor in four cases where it found the damage was irreversible.
Reports on the decisions did not name the neighbourhoods or streams affected. The individual stations have not been identified either.
Missed targets in Ferraz de Vasconcelos
The second fine, of R$6.9 million (about US$1.4 million), concerns Ferraz de Vasconcelos, east of São Paulo city. Arsesp found Sabesp had missed contractual targets for water supply and sewage collection and treatment.
Sabesp was fined for five infractions that the regulator upheld. The targets were measured from 2018 to 2020, under the municipal contract in force before privatisation.
Together the two fines come to R$29,915,304.81 (about US$5.85 million), SP Diário reported. If the fines survive appeal, the money goes within 30 days to Fausp, a state fund for universal sanitation.
The dollar figures in this article use a rate of 5.11 to the US dollar. That is the Central Bank of Brazil’s reference rate for 21 September 2026.
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Sabesp says the stations work normally
In a written statement quoted by Estadão, Sabesp said the decisions were first-instance administrative rulings. It said it was analysing them “to define the appropriate administrative measures” under regulatory procedures and its concession contract.
The company said all the pumping stations cited operate normally. Like any large infrastructure system, it added, occasional incidents can be influenced by bad weather or other external factors.
On Ferraz de Vasconcelos, Sabesp said the penalties relate to obligations under the old contract, assessed before its privatisation. The new concession covers a wider area, including rural districts and informal settlements.
By 22 September 2026, no appeal and no change to either decision had been reported.
How Sabesp was privatised
Sabesp, short for Companhia de Saneamento Básico do Estado de São Paulo, is Brazil’s largest sanitation company. Until July 2024 the state government held a majority of its shares.
Governor Tarcísio de Freitas, of the Republicanos party, sold a large block in a share offering completed on 22 July 2024. The state’s stake fell from 50.26% to 18%, according to Sabesp’s annual filing with United States regulators.
The sale raised R$14.8 billion (about US$2.7 billion at the 2024 exchange rate), Bloomberg reported. It was Latin America’s biggest share deal of that year.
Equatorial, a Brazilian electricity distribution group, bought a 15% stake as the anchor investor and became the reference shareholder. It was the only bidder for that role.
The state kept a golden share, which lets it veto changes to the company’s name, headquarters, purpose and limits on voting rights. Sabesp now serves 375 municipalities, 371 of them under a single regional concession.
In return, Sabesp committed to reach 99% water coverage and 90% sewage coverage by 31 December 2029. That is four years earlier than the national sanitation law requires.
The company plans to invest about R$70 billion (about US$13.7 billion) between 2024 and 2029, its filing says. Last week it also won the final shareholder vote to absorb the power company EMAE.
A regulator watching more closely
Arsesp says it carried out more than 980 inspection actions in Sabesp’s concession area in 2025 and 2026. About 11% of them led to penalties.
Arsesp said both new cases remain open, with Sabesp entitled to contest them and appeal. No court has ruled on either fine published on 16 September 2026.
The politics of the privatisation
São Paulo elects its governor on Sunday 4 October 2026, and Tarcísio is seeking a second term. His main challenger is Fernando Haddad of the Workers’ Party, a former federal finance minister.
Haddad has promised to review the Sabesp contract if elected. At a UOL and Folha forum in August he called re-nationalisation “a very complicated thing”, Poder360 reported.
He said it could cost more than imposing fairer rules on the concessionaire. At a TV Record debate on 21 September 2026, which Tarcísio skipped, Haddad said promised tariff cuts had not materialised.
For now, the case in which Sabesp was fined stays inside Arsesp’s own appeal process. Any payment would come only after its board rules.
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Frequently Asked Questions
Who fined Sabesp?
Arsesp, the regulatory agency for public services of São Paulo state, imposed both fines. It is the state regulator that oversees Sabesp’s concession and sets its tariffs. The decisions were published in the state’s official gazette on 16 September 2026. Cetesb, the state environmental agency, and some city halls have fined Sabesp separately in other cases, including a Cetesb penalty in April 2026.
Why was Sabesp fined?
Sabesp was fined R$23 million (about US$4.5 million) for failures found at nine sewage pumping stations in São Paulo city during inspections in January 2025. It received a further R$6.9 million (about US$1.4 million) for missing water and sewage targets in Ferraz de Vasconcelos between 2018 and 2020.
Will Sabesp have to pay?
Not yet. Both rulings are first-instance decisions and can be appealed to Arsesp’s board of directors. Sabesp said it was analysing the decisions to define the administrative measures available to it. If the fines are upheld, the money goes to Fausp, a state sanitation fund, within 30 days.
Who owns Sabesp now?
Since July 2024 Sabesp has been a privately controlled listed company. São Paulo state keeps 18% of its shares and a golden share with limited veto rights. The electricity group Equatorial holds 15% as reference shareholder, and the rest trades on the stock exchanges in São Paulo and New York.
Sources: Estadão Conteúdo via Diário do Grande ABC on the Arsesp fines, SP Diário on the exact amounts, Sabesp’s 2025 Form 20-F on the privatisation and concession, Bloomberg via Energy Connects on the 2024 share sale, Poder360 on Haddad’s position, Brasil de Fato on the Record debate, Central Bank of Brazil exchange rates
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