TEPCO Begins 24th ALPS Treated Water Discharge (6th of FY2026)

TEPCO began the sixth FY2026 round of ALPS-treated water discharge on October 5, 2026: about 7,800 tons diluted with seawater, released via the undersea tunnel about 1 km offshore, scheduled to end October 23. It is the 24th release since 2023. TEPCO says samples from tank group A (analysed August 24, including by external agencies) met regulatory standards, and nearby seawater tritium stays below the suspension and investigation levels.