Manaus water supply to be interrupted for maintenance at Ponta do Ismael

Manaus water maintenance Ponta do Ismael Sabesp pressure reduction São Paulo water supply Cantareira reservoir

On Wednesday, 5 May, Águas de Manaus will carry out scheduled maintenance at the Ponta do Ismael water‑production complex, shutting down its two treatment stations from 06:00 to 18:00. The work will interrupt water service in more than 300 neighborhoods across the North, South, Central‑South, West, Central‑West and part of the East zones of the city. Restoration will be phased: areas close to the complex are expected to have water back within 12 hours, a second group within 24 hours, and the most distant neighborhoods within 48 hours, with full normalization by 7 May. Residents have been urged to store water in advance and the utility will deploy tank trucks to supply hospitals, health centres and schools.

Separately, Sabesp announced that the nightly water‑pressure reduction (Gestão de Demanda Noturna) in the Greater São Paulo area will be shortened from ten to eight hours, now running from 21:00 to 05:00. The change follows higher‑than‑expected rainfall that raised the Cantareira reservoir to 39.87 % of capacity on 30 June and 36.67 % on 31 June, prompting an operation‑3 alert and a withdrawal limit of 27 m³/s.

Other municipalities also reported temporary supply cuts: Guaratinguetá will install eight flow macrometers and interrupt service in several districts on 4‑6 August, while Rio de Janeiro continues to restore water to 15 neighborhoods still affected by a storm‑induced leak.

Entities: Cantareira System · Jessica Candeia · Ponta do Ismael · Ponta do Ismael Complex · Ponta do Ismael Water Production Complex · Sabesp · Sistema Cantareira · São Paulo · Águas de Manaus

Claims

What the coverage asserts, and how well corroborated each claim is across sources.

[DISPUTED] Sabesp reduced the daily water‑pressure reduction period in Greater São Paulo from ten to eight hours, now from 21:00 to 05:00. (Sabesp)
[○ 1 SOURCE] Águas de Manaus advises residents to reserve water in advance and use it conservatively during the outage. (Águas de Manaus)
[● 3 SOURCES] On 30 June, the Cantareira system held 39.87 % of its total capacity, triggering operation 3 (alert) with a withdrawal limit of 27 m³/s. (Sabesp)
[○ 1 SOURCE] Service restoration is expected within 12 hours for central areas and up to 48 hours for higher‑lying districts, with full normalization by 7 May. (Águas de Manaus)
[● 3 SOURCES] On 31 June, the Cantareira system recorded 36.67 % of its useful capacity. (Sabesp)
[● 3 SOURCES] The reduction was enabled by higher‑than‑expected rainfall that improved reservoir levels. (Sabesp)
[● 3 SOURCES] Águas de Manaus will perform scheduled maintenance on the Ponta do Ismael water production complex on 5 May, shutting down two treatment stations from 06:00 to 18:00. (Águas de Manaus)
[● 3 SOURCES] During the maintenance, water supply will be interrupted in neighborhoods across all zones of Manaus. (Águas de Manaus)
[○ 1 SOURCE] In Boa Vista, Roraima, an emergency maintenance on a 75‑hp pump at the Buritis centre of distribution caused a six‑hour water outage and low pressure on 1 – 3 May. (Companhia de Águas e Esgotos de Roraima (Caer))
[○ 1 SOURCE] Fifteen neighborhoods in Rio de Janeiro have been without water for almost a week after a storm caused a leak on Avenida Ernani Cardoso, with full restoration expected in about 72 hours. (Águas do Rio)
[● 6 SOURCES] Residents were advised to store water in advance and Águas de Manaus will deploy tank trucks to supply essential services during the interruption. (Águas de Manaus)
[● 6 SOURCES] Restoration of water service after the Ponta do Ismael maintenance will be phased: up to 12 hours for nearby areas, up to 24 hours for a second group, and up to 48 hours for distant neighborhoods, all (Águas de Manaus)