TEPCO Begins 19th Round of ALPS-Treated Water Discharge (FY2026 First Batch)

TEPCO commenced its 19th round of ALPS-treated water ocean discharge on April 2, 2026, marking the start of the FY2026 release program. The batch released approximately 7,800 tonnes of treated water through the undersea tunnel 1 km offshore, heavily diluted with seawater before release. The IAEA confirmed tritium concentrations in this batch were 'far below Japan's operational limit' and consistent with international safety standards. FY2026 plans call for 8 rounds totaling approximately 62,400 tonnes of treated water.