Corsan says Arroio São Luiz dam shifts from emergency to alert, residents return home

• Corsan downgraded the Arroio São Luiz dam in São Marcos from emergency to alert following crack repairs and reservoir drawdown.
• Residents evacuated as a precaution were cleared to return home four days after the structural issue was detected.
• Water removal peaked at 3.2 million liters per hour, easing pressure on the structure while controlling downstream flow to the Jaguari River.
• São Marcos water supply was maintained throughout the incident; monitoring continues due to forecasts of further rain.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Companhia Riograndense de Saneamento Corsan published the original content used to generate this news brief on September 27, 2026, and is solely responsible for the information contained therein.