Overview

• The reduction will run daily from 7 p.m. to 5 a.m., with additional daytime pressure management applied as needed.
• The directive was issued by the interagency committee of Arsesp and SP Águas for Sabesp to implement until reservoirs recover.
• Monitoring shows the metropolitan system at 32.8% of usable volume, with Cantareira at 30.3% and Alto Tietê at 26.1%, and an average decline of 0.26 percentage point per day last week.
• The initial eight-hour phase launched on August 27 saved about 7.2576 billion liters, enough for more than 800,000 people for a month, meeting an expected cut that reached 4.2 m³/s.
• Authorities have not specified which neighborhoods will be subject to the extended reductions or the exact operational triggers, and some areas may face targeted daytime cuts.