Overview

• Measured usable volume fell to about 29.42%, crossing the threshold that triggers the restriction band under ANA rules.
• Sabesp’s authorized take from Cantareira will drop from 27 m³/s to 23 m³/s starting October 1, a status not seen since January 2022.
• Nighttime pressure reductions have been expanded to 19:00–05:00 across the metropolitan network, with daytime pressure management to curb losses.
• ANA authorized use of the Jaguari–Atibainha transposition within a 33 m³/s cap to help offset the reduced withdrawals.
• The state halted new non‑emergency water‑capture outorgas as agencies mandate additional conservation steps and maintain daily operational monitoring.