CASAN keeps 24-hour watch on Rio São Bento dam as heavy rains lift reservoir level

• CASAN kept 24-hour monitoring of the Rio São Bento dam in Siderópolis, citing heavy rainfall and overflow risk.
• Reservoir levels have been held 2-3 meters below the spillway since July to limit spillover.
• Rain on Tuesday lifted the reservoir by 1.17 meters, avoiding an estimated 4 million liters of overflow into the Rio São Bento.
• Coordination continued with municipal civil defense teams on procedures around the structure.
• Emergency action planning for the dam remained under discussion with local communities.

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. CASAN - Companhia Catarinense de Águas e Saneamento published the original content used to generate this news brief on September 22, 2026, and is solely responsible for the information contained therein.