# Water supply disruptions in Brazilian cities

> Live situation record from CLSTR: https://clstr.news/situations/water-supply-disruptions-in-brazilian-cities
> Updated: 2026-10-23T11:48:51.000Z. Sources: 8. Developments: 2.

Water supply services in various Brazilian cities have faced disruptions due to maintenance and repairs. In Porto Alegre, the Municipal Department of Water and Sewage (Dmae) scheduled preventive maintenance at the Belém Novo Water Treatment Plant and the Xavantes Treated Water Pumping Station, which threatened low pressure or shortages across 20 neighborhoods.

In Rio de Janeiro, the Guandu Water Treatment Plant operated at 50% capacity following repairs, causing reduced supply in the West Zone and Seropédica. Additionally, scheduled annual maintenance at the Imunana-Laranjal System was expected to impact residents in Niterói.

## Timeline

### 2026-10-23: Niterói launches major drainage and infrastructure projects

Niterói has begun a R$ 380 million drainage project featuring an 80-million-liter reservoir, while also advancing a new health unit in Icaraí and launching a zero-fare feeder bus line.

7 sources. https://clstr.news/cluster/rio-de-janeiro-water-supply-facing-reductions-and-maintenance-disruptions

### 2026-10-10: Porto Alegre water maintenance to affect 20 neighborhoods

Preventive maintenance at the Belém Novo Water Treatment Plant in Porto Alegre may cause water shortages or low pressure in 20 neighborhoods this Thursday.

2 sources. https://clstr.news/cluster/porto-alegre-water-maintenance-to-affect-20-neighborhoods

---
Cite as: Water supply disruptions in Brazilian cities. CLSTR, https://clstr.news/situations/water-supply-disruptions-in-brazilian-cities