A team of experts from IAEA laboratories visited TEPCO's FDNPS and conducted on-site observations of the analytical facilities at the nuclear power station to gather additional information relevant to the IAEA’s independent sampling, data corroboration, and analytical activities, as part of the ongoing IAEA review of safety-related aspects of ALPS treated water.

The IAEA team and TEPCO held discussions regarding the appropriateness of the radionuclide analysis methods to be utilized at the analysis facility. The IAEA team examined relevant documents and data from representative samples that were collected and analyzed by TEPCO for the purposes of both monitoring the characterization of ALPS treated water (source monitoring) and environmental monitoring.

With the findings from the IAEA review, Japan will continue to take measures in accordance with international safety standards and take all possible measures to ensure safety.

Related Links

• The IAEA Published a Report on "IAEA’s Independent Sampling, Data Corroboration, and Analysis Activities" from Its Review of Safety Related Aspects of Handling ALPS Treated Water at TEPCO's Fukushima Daiichi Nuclear Power Station (January 4, 2023) News Release
• Portal Site for ALPS Treated Water (METI website)
• ALPS Treated Water (IAEA website)Link

Division in Charge

Nuclear Accident Response Office, Agency for Natural Resources and Energy